diff options
Diffstat (limited to 'drivers/s390')
76 files changed, 3894 insertions, 4855 deletions
diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile index d0eae59bc366..95bccfd3f169 100644 --- a/drivers/s390/Makefile +++ b/drivers/s390/Makefile @@ -2,9 +2,6 @@ # Makefile for the S/390 specific device drivers # -CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w - -obj-y += s390mach.o sysinfo.o obj-y += cio/ block/ char/ crypto/ net/ scsi/ kvm/ drivers-y += drivers/s390/built-in.o diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 08c23a921012..0570794ccf1c 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -9,6 +9,9 @@ * */ +#define KMSG_COMPONENT "dasd" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/kmod.h> #include <linux/init.h> #include <linux/interrupt.h> @@ -22,6 +25,7 @@ #include <asm/ebcdic.h> #include <asm/idals.h> #include <asm/todclk.h> +#include <asm/itcw.h> /* This is ugly... */ #define PRINTK_HEADER "dasd:" @@ -221,7 +225,7 @@ static int dasd_state_known_to_basic(struct dasd_device *device) return rc; } /* register 'device' debug area, used for all DBF_DEV_XXX calls */ - device->debug_area = debug_register(dev_name(&device->cdev->dev), 1, 1, + device->debug_area = debug_register(dev_name(&device->cdev->dev), 4, 1, 8 * sizeof(long)); debug_register_view(device->debug_area, &debug_sprintf_view); debug_set_level(device->debug_area, DBF_WARNING); @@ -762,7 +766,7 @@ static inline int dasd_check_cqr(struct dasd_ccw_req *cqr) return -EINVAL; device = cqr->startdev; if (strncmp((char *) &cqr->magic, device->discipline->ebcname, 4)) { - DEV_MESSAGE(KERN_WARNING, device, + DBF_DEV_EVENT(DBF_WARNING, device, " dasd_ccw_req 0x%08x magic doesn't match" " discipline 0x%08x", cqr->magic, @@ -782,6 +786,7 @@ int dasd_term_IO(struct dasd_ccw_req *cqr) { struct dasd_device *device; int retries, rc; + char errorstring[ERRORLENGTH]; /* Check the cqr */ rc = dasd_check_cqr(cqr); @@ -815,10 +820,10 @@ int dasd_term_IO(struct dasd_ccw_req *cqr) "device busy, retry later"); break; default: - DEV_MESSAGE(KERN_ERR, device, - "line %d unknown RC=%d, please " - "report to linux390@de.ibm.com", - __LINE__, rc); + /* internal error 10 - unknown rc*/ + snprintf(errorstring, ERRORLENGTH, "10 %d", rc); + dev_err(&device->cdev->dev, "An error occurred in the " + "DASD device driver, reason=%s\n", errorstring); BUG(); break; } @@ -836,6 +841,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr) { struct dasd_device *device; int rc; + char errorstring[ERRORLENGTH]; /* Check the cqr */ rc = dasd_check_cqr(cqr); @@ -843,17 +849,23 @@ int dasd_start_IO(struct dasd_ccw_req *cqr) return rc; device = (struct dasd_device *) cqr->startdev; if (cqr->retries < 0) { - DEV_MESSAGE(KERN_DEBUG, device, - "start_IO: request %p (%02x/%i) - no retry left.", - cqr, cqr->status, cqr->retries); + /* internal error 14 - start_IO run out of retries */ + sprintf(errorstring, "14 %p", cqr); + dev_err(&device->cdev->dev, "An error occurred in the DASD " + "device driver, reason=%s\n", errorstring); cqr->status = DASD_CQR_ERROR; return -EIO; } cqr->startclk = get_clock(); cqr->starttime = jiffies; cqr->retries--; - rc = ccw_device_start(device->cdev, cqr->cpaddr, (long) cqr, - cqr->lpm, 0); + if (cqr->cpmode == 1) { + rc = ccw_device_tm_start(device->cdev, cqr->cpaddr, + (long) cqr, cqr->lpm); + } else { + rc = ccw_device_start(device->cdev, cqr->cpaddr, + (long) cqr, cqr->lpm, 0); + } switch (rc) { case 0: cqr->status = DASD_CQR_IN_IO; @@ -862,11 +874,11 @@ int dasd_start_IO(struct dasd_ccw_req *cqr) cqr); break; case -EBUSY: - DBF_DEV_EVENT(DBF_ERR, device, "%s", + DBF_DEV_EVENT(DBF_DEBUG, device, "%s", "start_IO: device busy, retry later"); break; case -ETIMEDOUT: - DBF_DEV_EVENT(DBF_ERR, device, "%s", + DBF_DEV_EVENT(DBF_DEBUG, device, "%s", "start_IO: request timeout, retry later"); break; case -EACCES: @@ -876,19 +888,24 @@ int dasd_start_IO(struct dasd_ccw_req *cqr) * Do a retry with all available pathes. */ cqr->lpm = LPM_ANYPATH; - DBF_DEV_EVENT(DBF_ERR, device, "%s", + DBF_DEV_EVENT(DBF_DEBUG, device, "%s", "start_IO: selected pathes gone," " retry on all pathes"); break; case -ENODEV: + DBF_DEV_EVENT(DBF_DEBUG, device, "%s", + "start_IO: -ENODEV device gone, retry"); + break; case -EIO: - DBF_DEV_EVENT(DBF_ERR, device, "%s", - "start_IO: device gone, retry"); + DBF_DEV_EVENT(DBF_DEBUG, device, "%s", + "start_IO: -EIO device gone, retry"); break; default: - DEV_MESSAGE(KERN_ERR, device, - "line %d unknown RC=%d, please report" - " to linux390@de.ibm.com", __LINE__, rc); + /* internal error 11 - unknown rc */ + snprintf(errorstring, ERRORLENGTH, "11 %d", rc); + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", errorstring); BUG(); break; } @@ -945,7 +962,7 @@ static void dasd_handle_killed_request(struct ccw_device *cdev, return; cqr = (struct dasd_ccw_req *) intparm; if (cqr->status != DASD_CQR_IN_IO) { - MESSAGE(KERN_DEBUG, + DBF_EVENT(DBF_DEBUG, "invalid status in handle_killed_request: " "bus_id %s, status %02x", dev_name(&cdev->dev), cqr->status); @@ -956,8 +973,8 @@ static void dasd_handle_killed_request(struct ccw_device *cdev, if (device == NULL || device != dasd_device_from_cdev_locked(cdev) || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { - MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s", - dev_name(&cdev->dev)); + DBF_DEV_EVENT(DBF_DEBUG, device, "invalid device in request: " + "bus_id %s", dev_name(&cdev->dev)); return; } @@ -996,11 +1013,11 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, case -EIO: break; case -ETIMEDOUT: - printk(KERN_WARNING"%s(%s): request timed out\n", + DBF_EVENT(DBF_WARNING, "%s(%s): request timed out\n", __func__, dev_name(&cdev->dev)); break; default: - printk(KERN_WARNING"%s(%s): unknown error %ld\n", + DBF_EVENT(DBF_WARNING, "%s(%s): unknown error %ld\n", __func__, dev_name(&cdev->dev), PTR_ERR(irb)); } dasd_handle_killed_request(cdev, intparm); @@ -1009,15 +1026,11 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, now = get_clock(); - DBF_EVENT(DBF_ERR, "Interrupt: bus_id %s CS/DS %04x ip %08x", - dev_name(&cdev->dev), ((irb->scsw.cmd.cstat << 8) | - irb->scsw.cmd.dstat), (unsigned int) intparm); - /* check for unsolicited interrupts */ cqr = (struct dasd_ccw_req *) intparm; - if (!cqr || ((irb->scsw.cmd.cc == 1) && - (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) && - (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND))) { + if (!cqr || ((scsw_cc(&irb->scsw) == 1) && + (scsw_fctl(&irb->scsw) & SCSW_FCTL_START_FUNC) && + (scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND))) { if (cqr && cqr->status == DASD_CQR_IN_IO) cqr->status = DASD_CQR_QUEUED; device = dasd_device_from_cdev_locked(cdev); @@ -1033,14 +1046,14 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, device = (struct dasd_device *) cqr->startdev; if (!device || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { - MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s", - dev_name(&cdev->dev)); + DBF_DEV_EVENT(DBF_DEBUG, device, "invalid device in request: " + "bus_id %s", dev_name(&cdev->dev)); return; } /* Check for clear pending */ if (cqr->status == DASD_CQR_CLEAR_PENDING && - irb->scsw.cmd.fctl & SCSW_FCTL_CLEAR_FUNC) { + scsw_fctl(&irb->scsw) & SCSW_FCTL_CLEAR_FUNC) { cqr->status = DASD_CQR_CLEARED; dasd_device_clear_timer(device); wake_up(&dasd_flush_wq); @@ -1048,19 +1061,17 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, return; } - /* check status - the request might have been killed by dyn detach */ + /* check status - the request might have been killed by dyn detach */ if (cqr->status != DASD_CQR_IN_IO) { - MESSAGE(KERN_DEBUG, - "invalid status: bus_id %s, status %02x", - dev_name(&cdev->dev), cqr->status); + DBF_DEV_EVENT(DBF_DEBUG, device, "invalid status: bus_id %s, " + "status %02x", dev_name(&cdev->dev), cqr->status); return; } - DBF_DEV_EVENT(DBF_DEBUG, device, "Int: CS/DS 0x%04x for cqr %p", - ((irb->scsw.cmd.cstat << 8) | irb->scsw.cmd.dstat), cqr); + next = NULL; expires = 0; - if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && - irb->scsw.cmd.cstat == 0 && !irb->esw.esw0.erw.cons) { + if (scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && + scsw_cstat(&irb->scsw) == 0) { /* request was completed successfully */ cqr->status = DASD_CQR_SUCCESS; cqr->stopclk = now; @@ -1071,18 +1082,23 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, } } else { /* error */ memcpy(&cqr->irb, irb, sizeof(struct irb)); + /* log sense for every failed I/O to s390 debugfeature */ + dasd_log_sense_dbf(cqr, irb); if (device->features & DASD_FEATURE_ERPLOG) { dasd_log_sense(cqr, irb); } + /* * If we don't want complex ERP for this request, then just * reset this and retry it in the fastpath */ if (!test_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags) && cqr->retries > 0) { - DEV_MESSAGE(KERN_DEBUG, device, - "default ERP in fastpath (%i retries left)", - cqr->retries); + if (cqr->lpm == LPM_ANYPATH) + DBF_DEV_EVENT(DBF_DEBUG, device, + "default ERP in fastpath " + "(%i retries left)", + cqr->retries); cqr->lpm = LPM_ANYPATH; cqr->status = DASD_CQR_QUEUED; next = cqr; @@ -1093,10 +1109,6 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, (!device->stopped)) { if (device->discipline->start_IO(next) == 0) expires = next->expires; - else - DEV_MESSAGE(KERN_DEBUG, device, "%s", - "Interrupt fastpath " - "failed!"); } if (expires != 0) dasd_device_set_timer(device, expires); @@ -1169,6 +1181,7 @@ static void __dasd_device_process_final_queue(struct dasd_device *device, struct dasd_block *block; void (*callback)(struct dasd_ccw_req *, void *data); void *callback_data; + char errorstring[ERRORLENGTH]; list_for_each_safe(l, n, final_queue) { cqr = list_entry(l, struct dasd_ccw_req, devlist); @@ -1189,10 +1202,11 @@ static void __dasd_device_process_final_queue(struct dasd_device *device, cqr->status = DASD_CQR_TERMINATED; break; default: - DEV_MESSAGE(KERN_ERR, device, - "wrong cqr status in __dasd_process_final_queue " - "for cqr %p, status %x", - cqr, cqr->status); + /* internal error 12 - wrong cqr status*/ + snprintf(errorstring, ERRORLENGTH, "12 %p %x02", cqr, cqr->status); + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", errorstring); BUG(); } if (cqr->callback != NULL) @@ -1217,18 +1231,17 @@ static void __dasd_device_check_expire(struct dasd_device *device) (time_after_eq(jiffies, cqr->expires + cqr->starttime))) { if (device->discipline->term_IO(cqr) != 0) { /* Hmpf, try again in 5 sec */ - DEV_MESSAGE(KERN_ERR, device, - "internal error - timeout (%is) expired " - "for cqr %p, termination failed, " - "retrying in 5s", - (cqr->expires/HZ), cqr); + dev_err(&device->cdev->dev, + "cqr %p timed out (%is) but cannot be " + "ended, retrying in 5 s\n", + cqr, (cqr->expires/HZ)); cqr->expires += 5*HZ; dasd_device_set_timer(device, 5*HZ); } else { - DEV_MESSAGE(KERN_ERR, device, - "internal error - timeout (%is) expired " - "for cqr %p (%i retries left)", - (cqr->expires/HZ), cqr, cqr->retries); + dev_err(&device->cdev->dev, + "cqr %p timed out (%is), %i retries " + "remaining\n", cqr, (cqr->expires/HZ), + cqr->retries); } } } @@ -1290,10 +1303,9 @@ int dasd_flush_device_queue(struct dasd_device *device) rc = device->discipline->term_IO(cqr); if (rc) { /* unable to terminate requeust */ - DEV_MESSAGE(KERN_ERR, device, - "dasd flush ccw_queue is unable " - " to terminate request %p", - cqr); + dev_err(&device->cdev->dev, + "Flushing the DASD request queue " + "failed for request %p\n", cqr); /* stop flush processing */ goto finished; } @@ -1537,10 +1549,9 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr) /* request in IO - terminate IO and release again */ rc = device->discipline->term_IO(cqr); if (rc) { - DEV_MESSAGE(KERN_ERR, device, - "dasd_cancel_req is unable " - " to terminate request %p, rc = %d", - cqr, rc); + dev_err(&device->cdev->dev, + "Cancelling request %p failed with rc=%d\n", + cqr, rc); } else { cqr->stopclk = get_clock(); rc = 1; @@ -1617,7 +1628,7 @@ static inline void __dasd_block_process_erp(struct dasd_block *block, if (cqr->status == DASD_CQR_DONE) DBF_DEV_EVENT(DBF_NOTICE, device, "%s", "ERP successful"); else - DEV_MESSAGE(KERN_ERR, device, "%s", "ERP unsuccessful"); + dev_err(&device->cdev->dev, "ERP failed for the DASD\n"); erp_fn = device->discipline->erp_postaction(cqr); erp_fn(cqr); } @@ -1991,8 +2002,11 @@ static void dasd_setup_queue(struct dasd_block *block) blk_queue_max_sectors(block->request_queue, max); blk_queue_max_phys_segments(block->request_queue, -1L); blk_queue_max_hw_segments(block->request_queue, -1L); - blk_queue_max_segment_size(block->request_queue, -1L); - blk_queue_segment_boundary(block->request_queue, -1L); + /* with page sized segments we can translate each segement into + * one idaw/tidaw + */ + blk_queue_max_segment_size(block->request_queue, PAGE_SIZE); + blk_queue_segment_boundary(block->request_queue, PAGE_SIZE - 1); blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL); } @@ -2043,8 +2057,9 @@ static int dasd_open(struct block_device *bdev, fmode_t mode) } if (dasd_probeonly) { - DEV_MESSAGE(KERN_INFO, base, "%s", - "No access to device due to probeonly mode"); + dev_info(&base->cdev->dev, + "Accessing the DASD failed because it is in " + "probeonly mode\n"); rc = -EPERM; goto out; } @@ -2101,7 +2116,8 @@ dasd_device_operations = { .owner = THIS_MODULE, .open = dasd_open, .release = dasd_release, - .locked_ioctl = dasd_ioctl, + .ioctl = dasd_ioctl, + .compat_ioctl = dasd_ioctl, .getgeo = dasd_getgeo, }; @@ -2143,14 +2159,14 @@ int dasd_generic_probe(struct ccw_device *cdev, ret = ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP); if (ret) { - printk(KERN_WARNING + DBF_EVENT(DBF_WARNING, "dasd_generic_probe: could not set ccw-device options " "for %s\n", dev_name(&cdev->dev)); return ret; } ret = dasd_add_sysfs_files(cdev); if (ret) { - printk(KERN_WARNING + DBF_EVENT(DBF_WARNING, "dasd_generic_probe: could not add sysfs entries " "for %s\n", dev_name(&cdev->dev)); return ret; @@ -2166,9 +2182,7 @@ int dasd_generic_probe(struct ccw_device *cdev, (dasd_autodetect && dasd_busid_known(dev_name(&cdev->dev)) != 0)) ret = ccw_device_set_online(cdev); if (ret) - printk(KERN_WARNING - "dasd_generic_probe: could not initially " - "online ccw-device %s; return code: %d\n", + pr_warning("%s: Setting the DASD online failed with rc=%d\n", dev_name(&cdev->dev), ret); return 0; } @@ -2232,10 +2246,9 @@ int dasd_generic_set_online(struct ccw_device *cdev, discipline = base_discipline; if (device->features & DASD_FEATURE_USEDIAG) { if (!dasd_diag_discipline_pointer) { - printk (KERN_WARNING - "dasd_generic couldn't online device %s " - "- discipline DIAG not available\n", - dev_name(&cdev->dev)); + pr_warning("%s Setting the DASD online failed because " + "of missing DIAG discipline\n", + dev_name(&cdev->dev)); dasd_delete_device(device); return -ENODEV; } @@ -2256,10 +2269,9 @@ int dasd_generic_set_online(struct ccw_device *cdev, /* check_device will allocate block device if necessary */ rc = discipline->check_device(device); if (rc) { - printk (KERN_WARNING - "dasd_generic couldn't online device %s " - "with discipline %s rc=%i\n", - dev_name(&cdev->dev), discipline->name, rc); + pr_warning("%s Setting the DASD online with discipline %s " + "failed with rc=%i\n", + dev_name(&cdev->dev), discipline->name, rc); module_put(discipline->owner); module_put(base_discipline->owner); dasd_delete_device(device); @@ -2268,9 +2280,8 @@ int dasd_generic_set_online(struct ccw_device *cdev, dasd_set_target_state(device, DASD_STATE_ONLINE); if (device->state <= DASD_STATE_KNOWN) { - printk (KERN_WARNING - "dasd_generic discipline not found for %s\n", - dev_name(&cdev->dev)); + pr_warning("%s Setting the DASD online failed because of a " + "missing discipline\n", dev_name(&cdev->dev)); rc = -ENODEV; dasd_set_target_state(device, DASD_STATE_NEW); if (device->block) @@ -2314,13 +2325,13 @@ int dasd_generic_set_offline(struct ccw_device *cdev) open_count = atomic_read(&device->block->open_count); if (open_count > max_count) { if (open_count > 0) - printk(KERN_WARNING "Can't offline dasd " - "device with open count = %i.\n", - open_count); + pr_warning("%s: The DASD cannot be set offline " + "with open count %i\n", + dev_name(&cdev->dev), open_count); else - printk(KERN_WARNING "%s", - "Can't offline dasd device due " - "to internal use\n"); + pr_warning("%s: The DASD cannot be set offline " + "while it is in use\n", + dev_name(&cdev->dev)); clear_bit(DASD_FLAG_OFFLINE, &device->flags); dasd_put_device(device); return -EBUSY; @@ -2352,6 +2363,7 @@ int dasd_generic_notify(struct ccw_device *cdev, int event) ret = 0; switch (event) { case CIO_GONE: + case CIO_BOXED: case CIO_NO_PATH: /* First of all call extended error reporting. */ dasd_eer_write(device, NULL, DASD_EER_NOPATH); @@ -2393,8 +2405,10 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device, cqr = dasd_smalloc_request(magic, 1 /* RDC */, rdc_buffer_size, device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "Could not allocate RDC request"); + /* internal error 13 - Allocating the RDC request failed*/ + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", "13"); return cqr; } @@ -2431,6 +2445,40 @@ int dasd_generic_read_dev_chars(struct dasd_device *device, char *magic, } EXPORT_SYMBOL_GPL(dasd_generic_read_dev_chars); +/* + * In command mode and transport mode we need to look for sense + * data in different places. The sense data itself is allways + * an array of 32 bytes, so we can unify the sense data access + * for both modes. + */ +char *dasd_get_sense(struct irb *irb) +{ + struct tsb *tsb = NULL; + char *sense = NULL; + + if (scsw_is_tm(&irb->scsw) && (irb->scsw.tm.fcxs == 0x01)) { + if (irb->scsw.tm.tcw) + tsb = tcw_get_tsb((struct tcw *)(unsigned long) + irb->scsw.tm.tcw); + if (tsb && tsb->length == 64 && tsb->flags) + switch (tsb->flags & 0x07) { + case 1: /* tsa_iostat */ + sense = tsb->tsa.iostat.sense; + break; + case 2: /* tsa_ddpc */ + sense = tsb->tsa.ddpc.sense; + break; + default: + /* currently we don't use interrogate data */ + break; + } + } else if (irb->esw.esw0.erw.cons) { + sense = irb->ecw; + } + return sense; +} +EXPORT_SYMBOL_GPL(dasd_get_sense); + static int __init dasd_init(void) { int rc; @@ -2472,7 +2520,7 @@ static int __init dasd_init(void) return 0; failed: - MESSAGE(KERN_INFO, "%s", "initialization not performed due to errors"); + pr_info("The DASD device driver could not be initialized\n"); dasd_exit(); return rc; } diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index d82aad5224f0..27991b692056 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -7,6 +7,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/timer.h> #include <linux/slab.h> #include <asm/idals.h> @@ -75,7 +77,7 @@ dasd_3990_erp_block_queue(struct dasd_ccw_req * erp, int expires) struct dasd_device *device = erp->startdev; unsigned long flags; - DEV_MESSAGE(KERN_INFO, device, + DBF_DEV_EVENT(DBF_INFO, device, "blocking request queue for %is", expires/HZ); spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); @@ -114,9 +116,9 @@ dasd_3990_erp_int_req(struct dasd_ccw_req * erp) } else { /* issue a message and wait for 'device ready' interrupt */ - DEV_MESSAGE(KERN_ERR, device, "%s", + dev_err(&device->cdev->dev, "is offline or not installed - " - "INTERVENTION REQUIRED!!"); + "INTERVENTION REQUIRED!!\n"); dasd_3990_erp_block_queue(erp, 60*HZ); } @@ -158,7 +160,7 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp) if ((erp->lpm & opm) != 0x00) { - DEV_MESSAGE(KERN_DEBUG, device, + DBF_DEV_EVENT(DBF_WARNING, device, "try alternate lpm=%x (lpum=%x / opm=%x)", erp->lpm, erp->irb.esw.esw0.sublog.lpum, opm); @@ -166,10 +168,9 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp) erp->status = DASD_CQR_FILLED; erp->retries = 10; } else { - DEV_MESSAGE(KERN_ERR, device, - "No alternate channel path left (lpum=%x / " - "opm=%x) -> permanent error", - erp->irb.esw.esw0.sublog.lpum, opm); + dev_err(&device->cdev->dev, + "The DASD cannot be reached on any path (lpum=%x" + "/opm=%x)\n", erp->irb.esw.esw0.sublog.lpum, opm); /* post request with permanent error */ erp->status = DASD_CQR_FAILED; @@ -204,8 +205,8 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier) sizeof(struct DCTL_data), device); if (IS_ERR(dctl_cqr)) { - DEV_MESSAGE(KERN_ERR, device, "%s", - "Unable to allocate DCTL-CQR"); + dev_err(&device->cdev->dev, + "Unable to allocate DCTL-CQR\n"); erp->status = DASD_CQR_FAILED; return erp; } @@ -294,7 +295,7 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) /* interrupt (this enables easier enqueing of the cqr) */ if (erp->function != dasd_3990_erp_action_4) { - DEV_MESSAGE(KERN_INFO, device, "%s", + DBF_DEV_EVENT(DBF_INFO, device, "%s", "dasd_3990_erp_action_4: first time retry"); erp->retries = 256; @@ -303,7 +304,7 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) } else { if (sense && (sense[25] == 0x1D)) { /* state change pending */ - DEV_MESSAGE(KERN_INFO, device, + DBF_DEV_EVENT(DBF_INFO, device, "waiting for state change pending " "interrupt, %d retries left", erp->retries); @@ -311,15 +312,14 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) dasd_3990_erp_block_queue(erp, 30*HZ); } else if (sense && (sense[25] == 0x1E)) { /* busy */ - DEV_MESSAGE(KERN_INFO, device, + DBF_DEV_EVENT(DBF_INFO, device, "busy - redriving request later, " "%d retries left", erp->retries); dasd_3990_erp_block_queue(erp, HZ); } else { - /* no state change pending - retry */ - DEV_MESSAGE (KERN_INFO, device, + DBF_DEV_EVENT(DBF_INFO, device, "redriving request immediately, " "%d retries left", erp->retries); @@ -384,6 +384,7 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) struct dasd_device *device = erp->startdev; char msg_format = (sense[7] & 0xF0); char msg_no = (sense[7] & 0x0F); + char errorstring[ERRORLENGTH]; switch (msg_format) { case 0x00: /* Format 0 - Program or System Checks */ @@ -394,95 +395,97 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) case 0x00: /* No Message */ break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Invalid Command"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Invalid Command\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - Invalid Command " - "Sequence"); + "Sequence\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - CCW Count less than " - "required"); + "required\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Invalid Parameter"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Invalid Parameter\n"); break; case 0x05: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Diagnostic of Sepecial" - " Command Violates File Mask"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Diagnostic of Special" + " Command Violates File Mask\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - Channel Returned with " - "Incorrect retry CCW"); + "Incorrect retry CCW\n"); break; case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Reset Notification"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Reset Notification\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Storage Path Restart"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Storage Path Restart\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, + dev_warn(&device->cdev->dev, "FORMAT 0 - Channel requested " - "... %02x", sense[8]); + "... %02x\n", sense[8]); break; case 0x0B: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - Invalid Defective/" - "Alternate Track Pointer"); + "Alternate Track Pointer\n"); break; case 0x0C: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - DPS Installation " - "Check"); + "Check\n"); break; case 0x0E: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - Command Invalid on " - "Secondary Address"); + "Secondary Address\n"); break; case 0x0F: - DEV_MESSAGE(KERN_WARNING, device, + dev_warn(&device->cdev->dev, "FORMAT 0 - Status Not As " - "Required: reason %02x", sense[8]); + "Required: reason %02x\n", + sense[8]); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Reseved"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Reserved\n"); } } else { switch (msg_no) { case 0x00: /* No Message */ break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Device Error Source"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Device Error " + "Source\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Reserved\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, + dev_warn(&device->cdev->dev, "FORMAT 0 - Device Fenced - " - "device = %02x", sense[4]); + "device = %02x\n", sense[4]); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 0 - Data Pinned for " - "Device"); + "Device\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 0 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 0 - Reserved\n"); } } break; @@ -492,348 +495,352 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) case 0x00: /* No Message */ break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Device Status 1 not as " - "expected"); + "expected\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Index missing"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Index missing\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Interruption cannot be reset"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Interruption cannot be " + "reset\n"); break; case 0x05: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Device did not respond to " - "selection"); + "selection\n"); break; case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Device check-2 error or Set " - "Sector is not complete"); + "Sector is not complete\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Head address does not " - "compare"); + "compare\n"); break; case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Device status 1 not valid"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Device status 1 not valid\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Device not ready"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Device not ready\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Track physical address did " - "not compare"); + "not compare\n"); break; case 0x0B: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Missing device address bit"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Missing device address bit\n"); break; case 0x0C: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Drive motor switch is off"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Drive motor switch is off\n"); break; case 0x0D: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Seek incomplete"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Seek incomplete\n"); break; case 0x0E: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Cylinder address did not " - "compare"); + "compare\n"); break; case 0x0F: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 1 - Offset active cannot be " - "reset"); + "reset\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 1 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 1 - Reserved\n"); } break; case 0x20: /* Format 2 - 3990 Equipment Checks */ switch (msg_no) { case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 2 - 3990 check-2 error"); + dev_warn(&device->cdev->dev, + "FORMAT 2 - 3990 check-2 error\n"); break; case 0x0E: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 2 - Support facility errors"); + dev_warn(&device->cdev->dev, + "FORMAT 2 - Support facility errors\n"); break; case 0x0F: - DEV_MESSAGE(KERN_WARNING, device, - "FORMAT 2 - Microcode detected error %02x", - sense[8]); + dev_warn(&device->cdev->dev, + "FORMAT 2 - Microcode detected error " + "%02x\n", + sense[8]); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 2 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 2 - Reserved\n"); } break; case 0x30: /* Format 3 - 3990 Control Checks */ switch (msg_no) { case 0x0F: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 3 - Allegiance terminated"); + dev_warn(&device->cdev->dev, + "FORMAT 3 - Allegiance terminated\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 3 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 3 - Reserved\n"); } break; case 0x40: /* Format 4 - Data Checks */ switch (msg_no) { case 0x00: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - Home address area error"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - Home address area error\n"); break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - Count area error"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - Count area error\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - Key area error"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - Key area error\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - Data area error"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - Data area error\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - No sync byte in home address " - "area"); + "area\n"); break; case 0x05: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - No sync byte in count address " - "area"); + "area\n"); break; case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - No sync byte in key area"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - No sync byte in key area\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - No sync byte in data area"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - No sync byte in data area\n"); break; case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - Home address area error; " - "offset active"); + "offset active\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - Count area error; offset " - "active"); + "active\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - Key area error; offset " - "active"); + "active\n"); break; case 0x0B: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - Data area error; " - "offset active"); + "offset active\n"); break; case 0x0C: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - No sync byte in home " - "address area; offset active"); + "address area; offset active\n"); break; case 0x0D: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - No syn byte in count " - "address area; offset active"); + "address area; offset active\n"); break; case 0x0E: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - No sync byte in key area; " - "offset active"); + "offset active\n"); break; case 0x0F: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 4 - No syn byte in data area; " - "offset active"); + "offset active\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 4 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 4 - Reserved\n"); } break; case 0x50: /* Format 5 - Data Check with displacement information */ switch (msg_no) { case 0x00: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 5 - Data Check in the " - "home address area"); + "home address area\n"); break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 5 - Data Check in the count area"); + dev_warn(&device->cdev->dev, + "FORMAT 5 - Data Check in the count " + "area\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 5 - Data Check in the key area"); + dev_warn(&device->cdev->dev, + "FORMAT 5 - Data Check in the key area\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 5 - Data Check in the data area"); + dev_warn(&device->cdev->dev, + "FORMAT 5 - Data Check in the data " + "area\n"); break; case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 5 - Data Check in the " - "home address area; offset active"); + "home address area; offset active\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 5 - Data Check in the count area; " - "offset active"); + "offset active\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 5 - Data Check in the key area; " - "offset active"); + "offset active\n"); break; case 0x0B: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 5 - Data Check in the data area; " - "offset active"); + "offset active\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 5 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 5 - Reserved\n"); } break; case 0x60: /* Format 6 - Usage Statistics/Overrun Errors */ switch (msg_no) { case 0x00: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel A"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel A\n"); break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel B"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel B\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel C"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel C\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel D"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel D\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel E"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel E\n"); break; case 0x05: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel F"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel F\n"); break; case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel G"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel G\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Overrun on channel H"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Overrun on channel H\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 6 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 6 - Reserved\n"); } break; case 0x70: /* Format 7 - Device Connection Control Checks */ switch (msg_no) { case 0x00: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - RCC initiated by a connection " - "check alert"); + "check alert\n"); break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - RCC 1 sequence not " - "successful"); + "successful\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - RCC 1 and RCC 2 sequences not " - "successful"); + "successful\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Invalid tag-in during " - "selection sequence"); + "selection sequence\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 7 - extra RCC required"); + dev_warn(&device->cdev->dev, + "FORMAT 7 - extra RCC required\n"); break; case 0x05: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Invalid DCC selection " - "response or timeout"); + "response or timeout\n"); break; case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Missing end operation; device " - "transfer complete"); + "transfer complete\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Missing end operation; device " - "transfer incomplete"); + "transfer incomplete\n"); break; case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Invalid tag-in for an " - "immediate command sequence"); + "immediate command sequence\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Invalid tag-in for an " - "extended command sequence"); + "extended command sequence\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - 3990 microcode time out when " - "stopping selection"); + "stopping selection\n"); break; case 0x0B: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - No response to selection " - "after a poll interruption"); + "after a poll interruption\n"); break; case 0x0C: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - Permanent path error (DASD " - "controller not available)"); + "controller not available)\n"); break; case 0x0D: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 7 - DASD controller not available" - " on disconnected command chain"); + " on disconnected command chain\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 7 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 7 - Reserved\n"); } break; @@ -841,52 +848,52 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) switch (msg_no) { case 0x00: /* No Message */ case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - Error correction code " - "hardware fault"); + "hardware fault\n"); break; case 0x03: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - Unexpected end operation " - "response code"); + "response code\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - End operation with transfer " - "count not zero"); + "count not zero\n"); break; case 0x05: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - End operation with transfer " - "count zero"); + "count zero\n"); break; case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - DPS checks after a system " - "reset or selective reset"); + "reset or selective reset\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 8 - DPS cannot be filled"); + dev_warn(&device->cdev->dev, + "FORMAT 8 - DPS cannot be filled\n"); break; case 0x08: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - Short busy time-out during " - "device selection"); + "device selection\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - DASD controller failed to " - "set or reset the long busy latch"); + "set or reset the long busy latch\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 8 - No interruption from device " - "during a command chain"); + "during a command chain\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 8 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 8 - Reserved\n"); } break; @@ -895,97 +902,100 @@ dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) case 0x00: break; /* No Message */ case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 9 - Device check-2 error"); + dev_warn(&device->cdev->dev, + "FORMAT 9 - Device check-2 error\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 9 - Head address did not compare"); + dev_warn(&device->cdev->dev, + "FORMAT 9 - Head address did not " + "compare\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 9 - Track physical address did " - "not compare while oriented"); + "not compare while oriented\n"); break; case 0x0E: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT 9 - Cylinder address did not " - "compare"); + "compare\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT 9 - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT 9 - Reserved\n"); } break; case 0xF0: /* Format F - Cache Storage Checks */ switch (msg_no) { case 0x00: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Operation Terminated"); + dev_warn(&device->cdev->dev, + "FORMAT F - Operation Terminated\n"); break; case 0x01: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Subsystem Processing Error"); + dev_warn(&device->cdev->dev, + "FORMAT F - Subsystem Processing Error\n"); break; case 0x02: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT F - Cache or nonvolatile storage " - "equipment failure"); + "equipment failure\n"); break; case 0x04: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Caching terminated"); + dev_warn(&device->cdev->dev, + "FORMAT F - Caching terminated\n"); break; case 0x06: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT F - Cache fast write access not " - "authorized"); + "authorized\n"); break; case 0x07: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Track format incorrect"); + dev_warn(&device->cdev->dev, + "FORMAT F - Track format incorrect\n"); break; case 0x09: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Caching reinitiated"); + dev_warn(&device->cdev->dev, + "FORMAT F - Caching reinitiated\n"); break; case 0x0A: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT F - Nonvolatile storage " - "terminated"); + "terminated\n"); break; case 0x0B: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Volume is suspended duplex"); + dev_warn(&device->cdev->dev, + "FORMAT F - Volume is suspended duplex\n"); /* call extended error reporting (EER) */ dasd_eer_write(device, erp->refers, DASD_EER_PPRCSUSPEND); break; case 0x0C: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - Subsystem status connot be " - "determined"); + dev_warn(&device->cdev->dev, + "FORMAT F - Subsystem status cannot be " + "determined\n"); break; case 0x0D: - DEV_MESSAGE(KERN_WARNING, device, "%s", + dev_warn(&device->cdev->dev, "FORMAT F - Caching status reset to " - "default"); + "default\n"); break; case 0x0E: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT F - DASD Fast Write inhibited"); + dev_warn(&device->cdev->dev, + "FORMAT F - DASD Fast Write inhibited\n"); break; default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "FORMAT D - Reserved"); + dev_warn(&device->cdev->dev, + "FORMAT D - Reserved\n"); } break; - default: /* unknown message format - should not happen */ - DEV_MESSAGE (KERN_WARNING, device, - "unknown message format %02x", - msg_format); + default: /* unknown message format - should not happen + internal error 03 - unknown message format */ + snprintf(errorstring, ERRORLENGTH, "03 %x02", msg_format); + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", errorstring); break; } /* end switch message format */ @@ -1015,7 +1025,7 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense) /* env data present (ACTION 10 - retry should work) */ if (sense[2] & SNS2_ENV_DATA_PRESENT) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Command Reject - environmental data present"); dasd_3990_handle_env_data(erp, sense); @@ -1023,9 +1033,10 @@ dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense) erp->retries = 5; } else { - /* fatal error - set status to FAILED */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "Command Reject - Fatal error"); + /* fatal error - set status to FAILED + internal error 09 - Command Reject */ + dev_err(&device->cdev->dev, "An error occurred in the DASD " + "device driver, reason=%s\n", "09"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); } @@ -1061,7 +1072,7 @@ dasd_3990_erp_bus_out(struct dasd_ccw_req * erp) } else { /* issue a message and wait for 'device ready' interrupt */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "bus out parity error or BOPC requested by " "channel"); @@ -1093,21 +1104,19 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense) erp->function = dasd_3990_erp_equip_check; if (sense[1] & SNS1_WRITE_INHIBITED) { + dev_info(&device->cdev->dev, + "Write inhibited path encountered\n"); - DEV_MESSAGE(KERN_DEBUG, device, "%s", - "Write inhibited path encountered"); - - /* vary path offline */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "Path should be varied off-line. " - "This is not implemented yet \n - please report " - "to linux390@de.ibm.com"); + /* vary path offline + internal error 04 - Path should be varied off-line.*/ + dev_err(&device->cdev->dev, "An error occurred in the DASD " + "device driver, reason=%s\n", "04"); erp = dasd_3990_erp_action_1(erp); } else if (sense[2] & SNS2_ENV_DATA_PRESENT) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Equipment Check - " "environmental data present"); dasd_3990_handle_env_data(erp, sense); @@ -1116,7 +1125,7 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense) } else if (sense[1] & SNS1_PERM_ERR) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Equipment Check - retry exhausted or " "undesirable"); @@ -1125,7 +1134,7 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense) } else { /* all other equipment checks - Action 5 */ /* rest is done when retries == 0 */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Equipment check or processing error"); erp = dasd_3990_erp_action_5(erp); @@ -1156,9 +1165,9 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense) if (sense[2] & SNS2_CORRECTABLE) { /* correctable data check */ /* issue message that the data has been corrected */ - DEV_MESSAGE(KERN_EMERG, device, "%s", + dev_emerg(&device->cdev->dev, "Data recovered during retry with PCI " - "fetch mode active"); + "fetch mode active\n"); /* not possible to handle this situation in Linux */ panic("No way to inform application about the possibly " @@ -1166,7 +1175,7 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense) } else if (sense[2] & SNS2_ENV_DATA_PRESENT) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Uncorrectable data check recovered secondary " "addr of duplex pair"); @@ -1174,7 +1183,7 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense) } else if (sense[1] & SNS1_PERM_ERR) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Uncorrectable data check with internal " "retry exhausted"); @@ -1182,7 +1191,7 @@ dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense) } else { /* all other data checks */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Uncorrectable data check with retry count " "exhausted..."); @@ -1212,7 +1221,7 @@ dasd_3990_erp_overrun(struct dasd_ccw_req * erp, char *sense) erp->function = dasd_3990_erp_overrun; - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Overrun - service overrun or overrun" " error requested by channel"); @@ -1243,7 +1252,7 @@ dasd_3990_erp_inv_format(struct dasd_ccw_req * erp, char *sense) if (sense[2] & SNS2_ENV_DATA_PRESENT) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Track format error when destaging or " "staging data"); @@ -1252,8 +1261,10 @@ dasd_3990_erp_inv_format(struct dasd_ccw_req * erp, char *sense) erp = dasd_3990_erp_action_4(erp, sense); } else { - DEV_MESSAGE(KERN_ERR, device, "%s", - "Invalid Track Format - Fatal error"); + /* internal error 06 - The track format is not valid*/ + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", "06"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); } @@ -1279,8 +1290,8 @@ dasd_3990_erp_EOC(struct dasd_ccw_req * default_erp, char *sense) struct dasd_device *device = default_erp->startdev; - DEV_MESSAGE(KERN_ERR, device, "%s", - "End-of-Cylinder - must never happen"); + dev_err(&device->cdev->dev, + "The cylinder data for accessing the DASD is inconsistent\n"); /* implement action 7 - BUG */ return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED); @@ -1306,7 +1317,7 @@ dasd_3990_erp_env_data(struct dasd_ccw_req * erp, char *sense) erp->function = dasd_3990_erp_env_data; - DEV_MESSAGE(KERN_DEBUG, device, "%s", "Environmental data present"); + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Environmental data present"); dasd_3990_handle_env_data(erp, sense); @@ -1339,8 +1350,8 @@ dasd_3990_erp_no_rec(struct dasd_ccw_req * default_erp, char *sense) struct dasd_device *device = default_erp->startdev; - DEV_MESSAGE(KERN_ERR, device, "%s", - "No Record Found - Fatal error "); + dev_err(&device->cdev->dev, + "The specified record was not found\n"); return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED); @@ -1365,7 +1376,8 @@ dasd_3990_erp_file_prot(struct dasd_ccw_req * erp) struct dasd_device *device = erp->startdev; - DEV_MESSAGE(KERN_ERR, device, "%s", "File Protected"); + dev_err(&device->cdev->dev, "Accessing the DASD failed because of " + "a hardware error\n"); return dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); @@ -1394,7 +1406,7 @@ static struct dasd_ccw_req *dasd_3990_erp_inspect_alias( if (cqr->block && (cqr->block->base != cqr->startdev)) { if (cqr->startdev->features & DASD_FEATURE_ERPLOG) { - DEV_MESSAGE(KERN_ERR, cqr->startdev, + DBF_DEV_EVENT(DBF_ERR, cqr->startdev, "ERP on alias device for request %p," " recover on base device %s", cqr, dev_name(&cqr->block->base->cdev->dev)); @@ -1511,7 +1523,7 @@ dasd_3990_erp_action_10_32(struct dasd_ccw_req * erp, char *sense) erp->retries = 256; erp->function = dasd_3990_erp_action_10_32; - DEV_MESSAGE(KERN_DEBUG, device, "%s", "Perform logging requested"); + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Perform logging requested"); return erp; @@ -1549,7 +1561,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) char *LO_data; /* LO_eckd_data_t */ struct ccw1 *ccw, *oldccw; - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Write not finished because of unexpected condition"); default_erp->function = dasd_3990_erp_action_1B_32; @@ -1561,10 +1573,16 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) cqr = cqr->refers; } + if (scsw_is_tm(&cqr->irb.scsw)) { + DBF_DEV_EVENT(DBF_WARNING, device, "%s", + "32 bit sense, action 1B is not defined" + " in transport mode - just retry"); + return default_erp; + } + /* for imprecise ending just do default erp */ if (sense[1] & 0x01) { - - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Imprecise ending is set - just retry"); return default_erp; @@ -1575,8 +1593,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) cpa = default_erp->refers->irb.scsw.cmd.cpa; if (cpa == 0) { - - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Unable to determine address of the CCW " "to be restarted"); @@ -1590,7 +1607,9 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) sizeof(struct LO_eckd_data), device); if (IS_ERR(erp)) { - DEV_MESSAGE(KERN_ERR, device, "%s", "Unable to allocate ERP"); + /* internal error 01 - Unable to allocate ERP */ + dev_err(&device->cdev->dev, "An error occurred in the DASD " + "device driver, reason=%s\n", "01"); return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED); } @@ -1599,7 +1618,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) oldccw = cqr->cpaddr; if (oldccw->cmd_code == DASD_ECKD_CCW_PFX) { PFX_data = cqr->data; - memcpy(DE_data, &PFX_data->define_extend, + memcpy(DE_data, &PFX_data->define_extent, sizeof(struct DE_eckd_data)); } else memcpy(DE_data, cqr->data, sizeof(struct DE_eckd_data)); @@ -1608,10 +1627,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) LO_data = erp->data + sizeof(struct DE_eckd_data); if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) { - - DEV_MESSAGE(KERN_ERR, device, "%s", - "BUG - this should not happen"); - + /* should not */ return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED); } @@ -1701,7 +1717,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) char *LO_data; /* struct LO_eckd_data */ struct ccw1 *ccw; - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Write not finished because of unexpected condition" " - follow on"); @@ -1712,10 +1728,16 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) cqr = cqr->refers; } + if (scsw_is_tm(&cqr->irb.scsw)) { + DBF_DEV_EVENT(DBF_WARNING, device, "%s", + "32 bit sense, action 1B, update," + " in transport mode - just retry"); + return previous_erp; + } + /* for imprecise ending just do default erp */ if (sense[1] & 0x01) { - - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Imprecise ending is set - just retry"); previous_erp->status = DASD_CQR_FILLED; @@ -1728,10 +1750,10 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) cpa = previous_erp->irb.scsw.cmd.cpa; if (cpa == 0) { - - DEV_MESSAGE(KERN_DEBUG, device, "%s", - "Unable to determine address of the CCW " - "to be restarted"); + /* internal error 02 - + Unable to determine address of the CCW to be restarted */ + dev_err(&device->cdev->dev, "An error occurred in the DASD " + "device driver, reason=%s\n", "02"); previous_erp->status = DASD_CQR_FAILED; @@ -1744,10 +1766,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) LO_data = erp->data + sizeof(struct DE_eckd_data); if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) { - - DEV_MESSAGE(KERN_ERR, device, "%s", - "BUG - this should not happen"); - + /* should not happen */ previous_erp->status = DASD_CQR_FAILED; return previous_erp; @@ -1935,14 +1954,13 @@ dasd_3990_erp_compound_config(struct dasd_ccw_req * erp, char *sense) if ((sense[25] & DASD_SENSE_BIT_1) && (sense[26] & DASD_SENSE_BIT_2)) { - /* set to suspended duplex state then restart */ + /* set to suspended duplex state then restart + internal error 05 - Set device to suspended duplex state + should be done */ struct dasd_device *device = erp->startdev; - - DEV_MESSAGE(KERN_ERR, device, "%s", - "Set device to suspended duplex state should be " - "done!\n" - "This is not implemented yet (for compound ERP)" - " - please report to linux390@de.ibm.com"); + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", "05"); } @@ -2012,15 +2030,14 @@ dasd_3990_erp_handle_sim(struct dasd_device *device, char *sense) { /* print message according to log or message to operator mode */ if ((sense[24] & DASD_SIM_MSG_TO_OP) || (sense[1] & 0x10)) { - /* print SIM SRC from RefCode */ - DEV_MESSAGE(KERN_ERR, device, "SIM - SRC: " - "%02x%02x%02x%02x", sense[22], + dev_err(&device->cdev->dev, "SIM - SRC: " + "%02x%02x%02x%02x\n", sense[22], sense[23], sense[11], sense[12]); } else if (sense[24] & DASD_SIM_LOG) { /* print SIM SRC Refcode */ - DEV_MESSAGE(KERN_WARNING, device, "SIM - SRC: " - "%02x%02x%02x%02x", sense[22], + dev_warn(&device->cdev->dev, "log SIM - SRC: " + "%02x%02x%02x%02x\n", sense[22], sense[23], sense[11], sense[12]); } } @@ -2063,14 +2080,14 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) switch (sense[25]) { case 0x00: /* success - use default ERP for retries */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_DEBUG, device, "%s", "ERP called for successful request" " - just retry"); break; case 0x01: /* fatal error */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "Retry not recommended - Fatal error"); + dev_err(&device->cdev->dev, + "ERP failed for the DASD\n"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); break; @@ -2080,13 +2097,10 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) erp = dasd_3990_erp_int_req(erp); break; - case 0x0F: /* length mismatch during update write command */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "update write command error - should not " - "happen;\n" - "Please send this message together with " - "the above sense data to linux390@de." - "ibm.com"); + case 0x0F: /* length mismatch during update write command + internal error 08 - update write command error*/ + dev_err(&device->cdev->dev, "An error occurred in the " + "DASD device driver, reason=%s\n", "08"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); break; @@ -2095,13 +2109,12 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) erp = dasd_3990_erp_action_10_32(erp, sense); break; - case 0x15: /* next track outside defined extend */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "next track outside defined extend - " - "should not happen;\n" - "Please send this message together with " - "the above sense data to linux390@de." - "ibm.com"); + case 0x15: /* next track outside defined extend + internal error 07 - The next track is not + within the defined storage extent */ + dev_err(&device->cdev->dev, + "An error occurred in the DASD device driver, " + "reason=%s\n", "07"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); break; @@ -2112,9 +2125,9 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) break; case 0x1C: /* invalid data */ - DEV_MESSAGE(KERN_EMERG, device, "%s", + dev_emerg(&device->cdev->dev, "Data recovered during retry with PCI " - "fetch mode active"); + "fetch mode active\n"); /* not possible to handle this situation in Linux */ panic @@ -2123,7 +2136,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) break; case 0x1D: /* state-change pending */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "A State change pending condition exists " "for the subsystem or device"); @@ -2131,7 +2144,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) break; case 0x1E: /* busy */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Busy condition exists " "for the subsystem or device"); erp = dasd_3990_erp_action_4(erp, sense); @@ -2171,9 +2184,9 @@ dasd_3990_erp_control_check(struct dasd_ccw_req *erp) { struct dasd_device *device = erp->startdev; - if (erp->refers->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK + if (scsw_cstat(&erp->refers->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_CTRL_CHK)) { - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "channel or interface control check"); erp = dasd_3990_erp_action_4(erp, NULL); } @@ -2193,21 +2206,23 @@ dasd_3990_erp_control_check(struct dasd_ccw_req *erp) * erp_new contens was possibly modified */ static struct dasd_ccw_req * -dasd_3990_erp_inspect(struct dasd_ccw_req * erp) +dasd_3990_erp_inspect(struct dasd_ccw_req *erp) { struct dasd_ccw_req *erp_new = NULL; - /* sense data are located in the refers record of the */ - /* already set up new ERP ! */ - char *sense = erp->refers->irb.ecw; + char *sense; /* if this problem occured on an alias retry on base */ erp_new = dasd_3990_erp_inspect_alias(erp); if (erp_new) return erp_new; - /* check if no concurrent sens is available */ - if (!erp->refers->irb.esw.esw0.erw.cons) + /* sense data are located in the refers record of the + * already set up new ERP ! + * check if concurrent sens is available + */ + sense = dasd_get_sense(&erp->refers->irb); + if (!sense) erp_new = dasd_3990_erp_control_check(erp); /* distinguish between 24 and 32 byte sense data */ else if (sense[27] & DASD_SENSE_BIT_0) { @@ -2231,7 +2246,11 @@ dasd_3990_erp_inspect(struct dasd_ccw_req * erp) * DESCRIPTION * This funtion adds an additional request block (ERP) to the head of * the given cqr (or erp). - * This erp is initialized as an default erp (retry TIC) + * For a command mode cqr the erp is initialized as an default erp + * (retry TIC). + * For transport mode we make a copy of the original TCW (points to + * the original TCCB, TIDALs, etc.) but give it a fresh + * TSB so the original sense data will not be changed. * * PARAMETER * cqr head of the current ERP-chain (or single cqr if @@ -2239,25 +2258,35 @@ dasd_3990_erp_inspect(struct dasd_ccw_req * erp) * RETURN VALUES * erp pointer to new ERP-chain head */ -static struct dasd_ccw_req * -dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) +static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr) { struct dasd_device *device = cqr->startdev; struct ccw1 *ccw; - - /* allocate additional request block */ struct dasd_ccw_req *erp; + int cplength, datasize; + struct tcw *tcw; + struct tsb *tsb; + + if (cqr->cpmode == 1) { + cplength = 0; + datasize = sizeof(struct tcw) + sizeof(struct tsb); + } else { + cplength = 2; + datasize = 0; + } - erp = dasd_alloc_erp_request((char *) &cqr->magic, 2, 0, device); + /* allocate additional request block */ + erp = dasd_alloc_erp_request((char *) &cqr->magic, + cplength, datasize, device); if (IS_ERR(erp)) { if (cqr->retries <= 0) { - DEV_MESSAGE(KERN_ERR, device, "%s", + DBF_DEV_EVENT(DBF_ERR, device, "%s", "Unable to allocate ERP request"); cqr->status = DASD_CQR_FAILED; cqr->stopclk = get_clock (); } else { - DEV_MESSAGE (KERN_ERR, device, + DBF_DEV_EVENT(DBF_ERR, device, "Unable to allocate ERP request " "(%i retries left)", cqr->retries); @@ -2266,13 +2295,24 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) return cqr; } - /* initialize request with default TIC to current ERP/CQR */ - ccw = erp->cpaddr; - ccw->cmd_code = CCW_CMD_NOOP; - ccw->flags = CCW_FLAG_CC; - ccw++; - ccw->cmd_code = CCW_CMD_TIC; - ccw->cda = (long)(cqr->cpaddr); + if (cqr->cpmode == 1) { + /* make a shallow copy of the original tcw but set new tsb */ + erp->cpmode = 1; + erp->cpaddr = erp->data; + tcw = erp->data; + tsb = (struct tsb *) &tcw[1]; + *tcw = *((struct tcw *)cqr->cpaddr); + tcw->tsb = (long)tsb; + } else { + /* initialize request with default TIC to current ERP/CQR */ + ccw = erp->cpaddr; + ccw->cmd_code = CCW_CMD_NOOP; + ccw->flags = CCW_FLAG_CC; + ccw++; + ccw->cmd_code = CCW_CMD_TIC; + ccw->cda = (long)(cqr->cpaddr); + } + erp->function = dasd_3990_erp_add_erp; erp->refers = cqr; erp->startdev = device; @@ -2282,7 +2322,6 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) erp->expires = 0; erp->retries = 256; erp->buildclk = get_clock(); - erp->status = DASD_CQR_FILLED; return erp; @@ -2340,28 +2379,33 @@ dasd_3990_erp_additional_erp(struct dasd_ccw_req * cqr) * match 'boolean' for match found * returns 1 if match found, otherwise 0. */ -static int -dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2) +static int dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, + struct dasd_ccw_req *cqr2) { + char *sense1, *sense2; if (cqr1->startdev != cqr2->startdev) return 0; - if (cqr1->irb.esw.esw0.erw.cons != cqr2->irb.esw.esw0.erw.cons) - return 0; + sense1 = dasd_get_sense(&cqr1->irb); + sense2 = dasd_get_sense(&cqr2->irb); - if ((cqr1->irb.esw.esw0.erw.cons == 0) && - (cqr2->irb.esw.esw0.erw.cons == 0)) { - if ((cqr1->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK | - SCHN_STAT_CHN_CTRL_CHK)) == - (cqr2->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK | - SCHN_STAT_CHN_CTRL_CHK))) + /* one request has sense data, the other not -> no match, return 0 */ + if (!sense1 != !sense2) + return 0; + /* no sense data in both cases -> check cstat for IFCC */ + if (!sense1 && !sense2) { + if ((scsw_cstat(&cqr1->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK | + SCHN_STAT_CHN_CTRL_CHK)) == + (scsw_cstat(&cqr2->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK | + SCHN_STAT_CHN_CTRL_CHK))) return 1; /* match with ifcc*/ } /* check sense data; byte 0-2,25,27 */ - if (!((memcmp (cqr1->irb.ecw, cqr2->irb.ecw, 3) == 0) && - (cqr1->irb.ecw[27] == cqr2->irb.ecw[27]) && - (cqr1->irb.ecw[25] == cqr2->irb.ecw[25]))) { + if (!(sense1 && sense2 && + (memcmp(sense1, sense2, 3) == 0) && + (sense1[27] == sense2[27]) && + (sense1[25] == sense2[25]))) { return 0; /* sense doesn't match */ } @@ -2434,7 +2478,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) { struct dasd_device *device = erp->startdev; - char *sense = erp->irb.ecw; + char *sense = dasd_get_sense(&erp->irb); /* check for 24 byte sense ERP */ if ((erp->function == dasd_3990_erp_bus_out) || @@ -2449,7 +2493,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) /* prepare erp for retry on different channel path */ erp = dasd_3990_erp_action_1(erp); - if (!(sense[2] & DASD_SENSE_BIT_0)) { + if (sense && !(sense[2] & DASD_SENSE_BIT_0)) { /* issue a Diagnostic Control command with an * Inhibit Write subcommand */ @@ -2471,7 +2515,7 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) break; } default: - DEV_MESSAGE(KERN_DEBUG, device, + DBF_DEV_EVENT(DBF_WARNING, device, "invalid subcommand modifier 0x%x " "for Diagnostic Control Command", sense[25]); @@ -2479,19 +2523,21 @@ dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) } /* check for 32 byte sense ERP */ - } else if ((erp->function == dasd_3990_erp_compound_retry) || - (erp->function == dasd_3990_erp_compound_path) || - (erp->function == dasd_3990_erp_compound_code) || - (erp->function == dasd_3990_erp_compound_config)) { + } else if (sense && + ((erp->function == dasd_3990_erp_compound_retry) || + (erp->function == dasd_3990_erp_compound_path) || + (erp->function == dasd_3990_erp_compound_code) || + (erp->function == dasd_3990_erp_compound_config))) { erp = dasd_3990_erp_compound(erp, sense); } else { - /* No retry left and no additional special handling */ - /*necessary */ - DEV_MESSAGE(KERN_ERR, device, - "no retries left for erp %p - " - "set status to FAILED", erp); + /* + * No retry left and no additional special handling + * necessary + */ + dev_err(&device->cdev->dev, + "ERP %p has run out of retries and failed\n", erp); erp->status = DASD_CQR_FAILED; } @@ -2548,24 +2594,25 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, if (erp->retries > 0) { - char *sense = erp->refers->irb.ecw; + char *sense = dasd_get_sense(&erp->refers->irb); /* check for special retries */ - if (erp->function == dasd_3990_erp_action_4) { + if (sense && erp->function == dasd_3990_erp_action_4) { erp = dasd_3990_erp_action_4(erp, sense); - } else if (erp->function == dasd_3990_erp_action_1B_32) { + } else if (sense && + erp->function == dasd_3990_erp_action_1B_32) { erp = dasd_3990_update_1B(erp, sense); - } else if (erp->function == dasd_3990_erp_int_req) { + } else if (sense && erp->function == dasd_3990_erp_int_req) { erp = dasd_3990_erp_int_req(erp); } else { /* simple retry */ - DEV_MESSAGE(KERN_DEBUG, device, + DBF_DEV_EVENT(DBF_DEBUG, device, "%i retries left for erp %p", erp->retries, erp); @@ -2609,24 +2656,24 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) if (device->features & DASD_FEATURE_ERPLOG) { /* print current erp_chain */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "ERP chain at BEGINNING of ERP-ACTION"); + dev_err(&device->cdev->dev, + "ERP chain at BEGINNING of ERP-ACTION\n"); for (temp_erp = cqr; temp_erp != NULL; temp_erp = temp_erp->refers) { - DEV_MESSAGE(KERN_ERR, device, - " erp %p (%02x) refers to %p", + dev_err(&device->cdev->dev, + "ERP %p (%02x) refers to %p\n", temp_erp, temp_erp->status, temp_erp->refers); } } /* double-check if current erp/cqr was successful */ - if ((cqr->irb.scsw.cmd.cstat == 0x00) && - (cqr->irb.scsw.cmd.dstat == + if ((scsw_cstat(&cqr->irb.scsw) == 0x00) && + (scsw_dstat(&cqr->irb.scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END))) { - DEV_MESSAGE(KERN_DEBUG, device, + DBF_DEV_EVENT(DBF_DEBUG, device, "ERP called for successful request %p" " - NO ERP necessary", cqr); @@ -2648,13 +2695,13 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) if (device->features & DASD_FEATURE_ERPLOG) { /* print current erp_chain */ - DEV_MESSAGE(KERN_ERR, device, "%s", - "ERP chain at END of ERP-ACTION"); + dev_err(&device->cdev->dev, + "ERP chain at END of ERP-ACTION\n"); for (temp_erp = erp; temp_erp != NULL; temp_erp = temp_erp->refers) { - DEV_MESSAGE(KERN_ERR, device, - " erp %p (%02x) refers to %p", + dev_err(&device->cdev->dev, + "ERP %p (%02x) refers to %p\n", temp_erp, temp_erp->status, temp_erp->refers); } @@ -2667,6 +2714,8 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) list_add_tail(&erp->blocklist, &cqr->blocklist); } + + return erp; } /* end dasd_3990_erp_action */ diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c index 20676cdef4a5..5b7bbc87593b 100644 --- a/drivers/s390/block/dasd_alias.c +++ b/drivers/s390/block/dasd_alias.c @@ -5,6 +5,8 @@ * Author(s): Stefan Weinhuber <wein@de.ibm.com> */ +#define KMSG_COMPONENT "dasd" + #include <linux/list.h> #include <asm/ebcdic.h> #include "dasd_int.h" @@ -503,7 +505,7 @@ static void lcu_update_work(struct work_struct *work) */ spin_lock_irqsave(&lcu->lock, flags); if (rc || (lcu->flags & NEED_UAC_UPDATE)) { - DEV_MESSAGE(KERN_WARNING, device, "could not update" + DBF_DEV_EVENT(DBF_WARNING, device, "could not update" " alias data in lcu (rc = %d), retry later", rc); schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ); } else { @@ -646,14 +648,16 @@ static int reset_summary_unit_check(struct alias_lcu *lcu, { struct dasd_ccw_req *cqr; int rc = 0; + struct ccw1 *ccw; cqr = lcu->rsu_cqr; strncpy((char *) &cqr->magic, "ECKD", 4); ASCEBC((char *) &cqr->magic, 4); - cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RSCK; - cqr->cpaddr->flags = 0 ; - cqr->cpaddr->count = 16; - cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_RSCK; + ccw->flags = 0 ; + ccw->count = 16; + ccw->cda = (__u32)(addr_t) cqr->data; ((char *)cqr->data)[0] = reason; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); @@ -855,16 +859,25 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device, struct alias_lcu *lcu; char reason; struct dasd_eckd_private *private; + char *sense; private = (struct dasd_eckd_private *) device->private; - reason = irb->ecw[8]; - DEV_MESSAGE(KERN_WARNING, device, "%s %x", - "eckd handle summary unit check: reason", reason); + sense = dasd_get_sense(irb); + if (sense) { + reason = sense[8]; + DBF_DEV_EVENT(DBF_NOTICE, device, "%s %x", + "eckd handle summary unit check: reason", reason); + } else { + DBF_DEV_EVENT(DBF_WARNING, device, "%s", + "eckd handle summary unit check:" + " no reason code available"); + return; + } lcu = private->lcu; if (!lcu) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "device not ready to handle summary" " unit check (no lcu structure)"); return; @@ -877,7 +890,7 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device, * the next interrupt on a different device */ if (list_empty(&device->alias_list)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "device is in offline processing," " don't do summary unit check handling"); spin_unlock(&lcu->lock); @@ -885,7 +898,7 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device, } if (lcu->suc_data.device) { /* already scheduled or running */ - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "previous instance of summary unit check worker" " still pending"); spin_unlock(&lcu->lock); diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 34339902efb9..e77666c8e6c0 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -13,6 +13,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/ctype.h> #include <linux/init.h> #include <linux/module.h> @@ -67,6 +69,8 @@ int dasd_probeonly = 0; /* is true, when probeonly mode is active */ int dasd_autodetect = 0; /* is true, when autodetection is active */ int dasd_nopav = 0; /* is true, when PAV is disabled */ EXPORT_SYMBOL_GPL(dasd_nopav); +int dasd_nofcx; /* disable High Performance Ficon */ +EXPORT_SYMBOL_GPL(dasd_nofcx); /* * char *dasd[] is intended to hold the ranges supplied by the dasd= statement @@ -125,6 +129,7 @@ __setup ("dasd=", dasd_call_setup); * Read a device busid/devno from a string. */ static int + dasd_busid(char **str, int *id0, int *id1, int *devno) { int val, old_style; @@ -132,8 +137,7 @@ dasd_busid(char **str, int *id0, int *id1, int *devno) /* Interpret ipldev busid */ if (strncmp(DASD_IPLDEV, *str, strlen(DASD_IPLDEV)) == 0) { if (ipl_info.type != IPL_TYPE_CCW) { - MESSAGE(KERN_ERR, "%s", "ipl device is not a ccw " - "device"); + pr_err("The IPL device is not a CCW device\n"); return -EINVAL; } *id0 = 0; @@ -209,9 +213,8 @@ dasd_feature_list(char *str, char **endp) else if (len == 8 && !strncmp(str, "failfast", 8)) features |= DASD_FEATURE_FAILFAST; else { - MESSAGE(KERN_WARNING, - "unsupported feature: %*s, " - "ignoring setting", len, str); + pr_warning("%*s is not a supported device option\n", + len, str); rc = -EINVAL; } str += len; @@ -220,8 +223,8 @@ dasd_feature_list(char *str, char **endp) str++; } if (*str != ')') { - MESSAGE(KERN_WARNING, "%s", - "missing ')' in dasd parameter string\n"); + pr_warning("A closing parenthesis ')' is missing in the " + "dasd= parameter\n"); rc = -EINVAL; } else str++; @@ -253,25 +256,29 @@ dasd_parse_keyword( char *parsestring ) { } if (strncmp("autodetect", parsestring, length) == 0) { dasd_autodetect = 1; - MESSAGE (KERN_INFO, "%s", - "turning to autodetection mode"); + pr_info("The autodetection mode has been activated\n"); return residual_str; } if (strncmp("probeonly", parsestring, length) == 0) { dasd_probeonly = 1; - MESSAGE(KERN_INFO, "%s", - "turning to probeonly mode"); + pr_info("The probeonly mode has been activated\n"); return residual_str; } if (strncmp("nopav", parsestring, length) == 0) { if (MACHINE_IS_VM) - MESSAGE(KERN_INFO, "%s", "'nopav' not supported on VM"); + pr_info("'nopav' is not supported on z/VM\n"); else { dasd_nopav = 1; - MESSAGE(KERN_INFO, "%s", "disable PAV mode"); + pr_info("PAV support has be deactivated\n"); } return residual_str; } + if (strncmp("nofcx", parsestring, length) == 0) { + dasd_nofcx = 1; + pr_info("High Performance FICON support has been " + "deactivated\n"); + return residual_str; + } if (strncmp("fixedbuffers", parsestring, length) == 0) { if (dasd_page_cache) return residual_str; @@ -280,10 +287,10 @@ dasd_parse_keyword( char *parsestring ) { PAGE_SIZE, SLAB_CACHE_DMA, NULL); if (!dasd_page_cache) - MESSAGE(KERN_WARNING, "%s", "Failed to create slab, " + DBF_EVENT(DBF_WARNING, "%s", "Failed to create slab, " "fixed buffer mode disabled."); else - MESSAGE (KERN_INFO, "%s", + DBF_EVENT(DBF_INFO, "%s", "turning on fixed buffer mode"); return residual_str; } @@ -321,7 +328,7 @@ dasd_parse_range( char *parsestring ) { (from_id0 != to_id0 || from_id1 != to_id1 || from > to)) rc = -EINVAL; if (rc) { - MESSAGE(KERN_ERR, "Invalid device range %s", parsestring); + pr_err("%s is not a valid device range\n", parsestring); return ERR_PTR(rc); } features = dasd_feature_list(str, &str); @@ -340,8 +347,8 @@ dasd_parse_range( char *parsestring ) { return str + 1; if (*str == '\0') return str; - MESSAGE(KERN_WARNING, - "junk at end of dasd parameter string: %s\n", str); + pr_warning("The dasd= parameter value %s has an invalid ending\n", + str); return ERR_PTR(-EINVAL); } diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index ef2a56952054..b9a7f7733446 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -8,6 +8,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/slab.h> @@ -144,8 +146,8 @@ dasd_diag_erp(struct dasd_device *device) mdsk_term_io(device); rc = mdsk_init_io(device, device->block->bp_block, 0, NULL); if (rc) - DEV_MESSAGE(KERN_WARNING, device, "DIAG ERP unsuccessful, " - "rc=%d", rc); + dev_warn(&device->cdev->dev, "DIAG ERP failed with " + "rc=%d\n", rc); } /* Start a given request at the device. Return zero on success, non-zero @@ -160,7 +162,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr) device = cqr->startdev; if (cqr->retries < 0) { - DEV_MESSAGE(KERN_WARNING, device, "DIAG start_IO: request %p " + DBF_DEV_EVENT(DBF_ERR, device, "DIAG start_IO: request %p " "- no retry left)", cqr); cqr->status = DASD_CQR_ERROR; return -EIO; @@ -195,7 +197,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr) break; default: /* Error condition */ cqr->status = DASD_CQR_QUEUED; - DEV_MESSAGE(KERN_WARNING, device, "dia250 returned rc=%d", rc); + DBF_DEV_EVENT(DBF_WARNING, device, "dia250 returned rc=%d", rc); dasd_diag_erp(device); rc = -EIO; break; @@ -243,13 +245,14 @@ dasd_ext_handler(__u16 code) return; } if (!ip) { /* no intparm: unsolicited interrupt */ - MESSAGE(KERN_DEBUG, "%s", "caught unsolicited interrupt"); + DBF_EVENT(DBF_NOTICE, "%s", "caught unsolicited " + "interrupt"); return; } cqr = (struct dasd_ccw_req *) ip; device = (struct dasd_device *) cqr->startdev; if (strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { - DEV_MESSAGE(KERN_WARNING, device, + DBF_DEV_EVENT(DBF_WARNING, device, " magic number of dasd_ccw_req 0x%08X doesn't" " match discipline 0x%08X", cqr->magic, *(int *) (&device->discipline->name)); @@ -281,15 +284,11 @@ dasd_ext_handler(__u16 code) rc = dasd_start_diag(next); if (rc == 0) expires = next->expires; - else if (rc != -EACCES) - DEV_MESSAGE(KERN_WARNING, device, "%s", - "Interrupt fastpath " - "failed!"); } } } else { cqr->status = DASD_CQR_QUEUED; - DEV_MESSAGE(KERN_WARNING, device, "interrupt status for " + DBF_DEV_EVENT(DBF_DEBUG, device, "interrupt status for " "request %p was %d (%d retries left)", cqr, status, cqr->retries); dasd_diag_erp(device); @@ -322,8 +321,9 @@ dasd_diag_check_device(struct dasd_device *device) if (private == NULL) { private = kzalloc(sizeof(struct dasd_diag_private),GFP_KERNEL); if (private == NULL) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "memory allocation failed for private data"); + DBF_DEV_EVENT(DBF_WARNING, device, "%s", + "Allocating memory for private DASD data " + "failed\n"); return -ENOMEM; } ccw_device_get_id(device->cdev, &private->dev_id); @@ -331,7 +331,7 @@ dasd_diag_check_device(struct dasd_device *device) } block = dasd_alloc_block(); if (IS_ERR(block)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "could not allocate dasd block structure"); device->private = NULL; kfree(private); @@ -347,7 +347,7 @@ dasd_diag_check_device(struct dasd_device *device) rc = diag210((struct diag210 *) rdc_data); if (rc) { - DEV_MESSAGE(KERN_WARNING, device, "failed to retrieve device " + DBF_DEV_EVENT(DBF_WARNING, device, "failed to retrieve device " "information (rc=%d)", rc); rc = -EOPNOTSUPP; goto out; @@ -362,8 +362,8 @@ dasd_diag_check_device(struct dasd_device *device) private->pt_block = 2; break; default: - DEV_MESSAGE(KERN_WARNING, device, "unsupported device class " - "(class=%d)", private->rdc_data.vdev_class); + dev_warn(&device->cdev->dev, "Device type %d is not supported " + "in DIAG mode\n", private->rdc_data.vdev_class); rc = -EOPNOTSUPP; goto out; } @@ -380,7 +380,7 @@ dasd_diag_check_device(struct dasd_device *device) /* figure out blocksize of device */ label = (struct vtoc_cms_label *) get_zeroed_page(GFP_KERNEL); if (label == NULL) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "No memory to allocate initialization request"); rc = -ENOMEM; goto out; @@ -404,8 +404,8 @@ dasd_diag_check_device(struct dasd_device *device) private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT; rc = dia250(&private->iob, RW_BIO); if (rc == 3) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "DIAG call failed"); + dev_warn(&device->cdev->dev, + "A 64-bit DIAG call failed\n"); rc = -EOPNOTSUPP; goto out_label; } @@ -414,8 +414,8 @@ dasd_diag_check_device(struct dasd_device *device) break; } if (bsize > PAGE_SIZE) { - DEV_MESSAGE(KERN_WARNING, device, "device access failed " - "(rc=%d)", rc); + dev_warn(&device->cdev->dev, "Accessing the DASD failed because" + " of an incorrect format (rc=%d)\n", rc); rc = -EIO; goto out_label; } @@ -433,15 +433,15 @@ dasd_diag_check_device(struct dasd_device *device) block->s2b_shift++; rc = mdsk_init_io(device, block->bp_block, 0, NULL); if (rc) { - DEV_MESSAGE(KERN_WARNING, device, "DIAG initialization " - "failed (rc=%d)", rc); + dev_warn(&device->cdev->dev, "DIAG initialization " + "failed with rc=%d\n", rc); rc = -EIO; } else { - DEV_MESSAGE(KERN_INFO, device, - "(%ld B/blk): %ldkB", - (unsigned long) block->bp_block, - (unsigned long) (block->blocks << - block->s2b_shift) >> 1); + dev_info(&device->cdev->dev, + "New DASD with %ld byte/block, total size %ld KB\n", + (unsigned long) block->bp_block, + (unsigned long) (block->blocks << + block->s2b_shift) >> 1); } out_label: free_page((long) label); @@ -595,7 +595,7 @@ static void dasd_diag_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, struct irb *stat) { - DEV_MESSAGE(KERN_ERR, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "dump sense not available for DIAG data"); } @@ -621,10 +621,8 @@ static int __init dasd_diag_init(void) { if (!MACHINE_IS_VM) { - MESSAGE_LOG(KERN_INFO, - "Machine is not VM: %s " - "discipline not initializing", - dasd_diag_discipline.name); + pr_info("Discipline %s cannot be used without z/VM\n", + dasd_diag_discipline.name); return -ENODEV; } ASCEBC(dasd_diag_discipline.ebcname, 4); diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index bdb87998f364..21254793c604 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -11,6 +11,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/slab.h> @@ -27,9 +29,12 @@ #include <asm/uaccess.h> #include <asm/cio.h> #include <asm/ccwdev.h> +#include <asm/itcw.h> #include "dasd_int.h" #include "dasd_eckd.h" +#include "../cio/chsc.h" + #ifdef PRINTK_HEADER #undef PRINTK_HEADER @@ -84,7 +89,7 @@ dasd_eckd_probe (struct ccw_device *cdev) /* set ECKD specific ccw-device options */ ret = ccw_device_set_options(cdev, CCWDEV_ALLOW_FORCE); if (ret) { - printk(KERN_WARNING + DBF_EVENT(DBF_WARNING, "dasd_eckd_probe: could not set ccw-device options " "for %s\n", dev_name(&cdev->dev)); return ret; @@ -159,6 +164,14 @@ recs_per_track(struct dasd_eckd_characteristics * rdc, return 0; } +static void set_ch_t(struct ch_t *geo, __u32 cyl, __u8 head) +{ + geo->cyl = (__u16) cyl; + geo->head = cyl >> 16; + geo->head <<= 4; + geo->head |= head; +} + static int check_XRC (struct ccw1 *de_ccw, struct DE_eckd_data *data, @@ -186,11 +199,12 @@ check_XRC (struct ccw1 *de_ccw, } static int -define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, - int totrk, int cmd, struct dasd_device * device) +define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk, + unsigned int totrk, int cmd, struct dasd_device *device) { struct dasd_eckd_private *private; - struct ch_t geo, beg, end; + u32 begcyl, endcyl; + u16 heads, beghead, endhead; int rc = 0; private = (struct dasd_eckd_private *) device->private; @@ -236,7 +250,8 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, rc = check_XRC (ccw, data, device); break; default: - DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd); + dev_err(&device->cdev->dev, + "0x%x is not a known command\n", cmd); break; } @@ -248,27 +263,24 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, && !(private->uses_cdl && trk < 2)) data->ga_extended |= 0x40; /* Regular Data Format Mode */ - geo.cyl = private->rdc_data.no_cyl; - geo.head = private->rdc_data.trk_per_cyl; - beg.cyl = trk / geo.head; - beg.head = trk % geo.head; - end.cyl = totrk / geo.head; - end.head = totrk % geo.head; + heads = private->rdc_data.trk_per_cyl; + begcyl = trk / heads; + beghead = trk % heads; + endcyl = totrk / heads; + endhead = totrk % heads; /* check for sequential prestage - enhance cylinder range */ if (data->attributes.operation == DASD_SEQ_PRESTAGE || data->attributes.operation == DASD_SEQ_ACCESS) { - if (end.cyl + private->attrib.nr_cyl < geo.cyl) - end.cyl += private->attrib.nr_cyl; + if (endcyl + private->attrib.nr_cyl < private->real_cyl) + endcyl += private->attrib.nr_cyl; else - end.cyl = (geo.cyl - 1); + endcyl = (private->real_cyl - 1); } - data->beg_ext.cyl = beg.cyl; - data->beg_ext.head = beg.head; - data->end_ext.cyl = end.cyl; - data->end_ext.head = end.head; + set_ch_t(&data->beg_ext, begcyl, beghead); + set_ch_t(&data->end_ext, endcyl, endhead); return rc; } @@ -283,29 +295,145 @@ static int check_XRC_on_prefix(struct PFX_eckd_data *pfxdata, return 0; /* switch on System Time Stamp - needed for XRC Support */ - pfxdata->define_extend.ga_extended |= 0x08; /* 'Time Stamp Valid' */ - pfxdata->define_extend.ga_extended |= 0x02; /* 'Extended Parameter' */ + pfxdata->define_extent.ga_extended |= 0x08; /* 'Time Stamp Valid' */ + pfxdata->define_extent.ga_extended |= 0x02; /* 'Extended Parameter' */ pfxdata->validity.time_stamp = 1; /* 'Time Stamp Valid' */ - rc = get_sync_clock(&pfxdata->define_extend.ep_sys_time); + rc = get_sync_clock(&pfxdata->define_extent.ep_sys_time); /* Ignore return code if sync clock is switched off. */ if (rc == -ENOSYS || rc == -EACCES) rc = 0; return rc; } -static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk, - int totrk, int cmd, struct dasd_device *basedev, - struct dasd_device *startdev) +static void fill_LRE_data(struct LRE_eckd_data *data, unsigned int trk, + unsigned int rec_on_trk, int count, int cmd, + struct dasd_device *device, unsigned int reclen, + unsigned int tlf) +{ + struct dasd_eckd_private *private; + int sector; + int dn, d; + + private = (struct dasd_eckd_private *) device->private; + + memset(data, 0, sizeof(*data)); + sector = 0; + if (rec_on_trk) { + switch (private->rdc_data.dev_type) { + case 0x3390: + dn = ceil_quot(reclen + 6, 232); + d = 9 + ceil_quot(reclen + 6 * (dn + 1), 34); + sector = (49 + (rec_on_trk - 1) * (10 + d)) / 8; + break; + case 0x3380: + d = 7 + ceil_quot(reclen + 12, 32); + sector = (39 + (rec_on_trk - 1) * (8 + d)) / 7; + break; + } + } + data->sector = sector; + /* note: meaning of count depends on the operation + * for record based I/O it's the number of records, but for + * track based I/O it's the number of tracks + */ + data->count = count; + switch (cmd) { + case DASD_ECKD_CCW_WRITE_HOME_ADDRESS: + data->operation.orientation = 0x3; + data->operation.operation = 0x03; + break; + case DASD_ECKD_CCW_READ_HOME_ADDRESS: + data->operation.orientation = 0x3; + data->operation.operation = 0x16; + break; + case DASD_ECKD_CCW_WRITE_RECORD_ZERO: + data->operation.orientation = 0x1; + data->operation.operation = 0x03; + data->count++; + break; + case DASD_ECKD_CCW_READ_RECORD_ZERO: + data->operation.orientation = 0x3; + data->operation.operation = 0x16; + data->count++; + break; + case DASD_ECKD_CCW_WRITE: + case DASD_ECKD_CCW_WRITE_MT: + case DASD_ECKD_CCW_WRITE_KD: + case DASD_ECKD_CCW_WRITE_KD_MT: + data->auxiliary.length_valid = 0x1; + data->length = reclen; + data->operation.operation = 0x01; + break; + case DASD_ECKD_CCW_WRITE_CKD: + case DASD_ECKD_CCW_WRITE_CKD_MT: + data->auxiliary.length_valid = 0x1; + data->length = reclen; + data->operation.operation = 0x03; + break; + case DASD_ECKD_CCW_WRITE_TRACK_DATA: + data->auxiliary.length_valid = 0x1; + data->length = reclen; /* not tlf, as one might think */ + data->operation.operation = 0x3F; + data->extended_operation = 0x23; + break; + case DASD_ECKD_CCW_READ: + case DASD_ECKD_CCW_READ_MT: + case DASD_ECKD_CCW_READ_KD: + case DASD_ECKD_CCW_READ_KD_MT: + data->auxiliary.length_valid = 0x1; + data->length = reclen; + data->operation.operation = 0x06; + break; + case DASD_ECKD_CCW_READ_CKD: + case DASD_ECKD_CCW_READ_CKD_MT: + data->auxiliary.length_valid = 0x1; + data->length = reclen; + data->operation.operation = 0x16; + break; + case DASD_ECKD_CCW_READ_COUNT: + data->operation.operation = 0x06; + break; + case DASD_ECKD_CCW_READ_TRACK_DATA: + data->auxiliary.length_valid = 0x1; + data->length = tlf; + data->operation.operation = 0x0C; + break; + case DASD_ECKD_CCW_ERASE: + data->length = reclen; + data->auxiliary.length_valid = 0x1; + data->operation.operation = 0x0b; + break; + default: + DBF_DEV_EVENT(DBF_ERR, device, + "fill LRE unknown opcode 0x%x", cmd); + BUG(); + } + set_ch_t(&data->seek_addr, + trk / private->rdc_data.trk_per_cyl, + trk % private->rdc_data.trk_per_cyl); + data->search_arg.cyl = data->seek_addr.cyl; + data->search_arg.head = data->seek_addr.head; + data->search_arg.record = rec_on_trk; +} + +static int prefix_LRE(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, + unsigned int trk, unsigned int totrk, int cmd, + struct dasd_device *basedev, struct dasd_device *startdev, + unsigned char format, unsigned int rec_on_trk, int count, + unsigned int blksize, unsigned int tlf) { struct dasd_eckd_private *basepriv, *startpriv; - struct DE_eckd_data *data; - struct ch_t geo, beg, end; + struct DE_eckd_data *dedata; + struct LRE_eckd_data *lredata; + u32 begcyl, endcyl; + u16 heads, beghead, endhead; int rc = 0; basepriv = (struct dasd_eckd_private *) basedev->private; startpriv = (struct dasd_eckd_private *) startdev->private; - data = &pfxdata->define_extend; + dedata = &pfxdata->define_extent; + lredata = &pfxdata->locate_record; ccw->cmd_code = DASD_ECKD_CCW_PFX; ccw->flags = 0; @@ -314,10 +442,16 @@ static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk, memset(pfxdata, 0, sizeof(*pfxdata)); /* prefix data */ - pfxdata->format = 0; + if (format > 1) { + DBF_DEV_EVENT(DBF_ERR, basedev, + "PFX LRE unknown format 0x%x", format); + BUG(); + return -EINVAL; + } + pfxdata->format = format; pfxdata->base_address = basepriv->ned->unit_addr; pfxdata->base_lss = basepriv->ned->ID; - pfxdata->validity.define_extend = 1; + pfxdata->validity.define_extent = 1; /* private uid is kept up to date, conf_data may be outdated */ if (startpriv->uid.type != UA_BASE_DEVICE) { @@ -337,70 +471,94 @@ static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk, case DASD_ECKD_CCW_READ_KD: case DASD_ECKD_CCW_READ_KD_MT: case DASD_ECKD_CCW_READ_COUNT: - data->mask.perm = 0x1; - data->attributes.operation = basepriv->attrib.operation; + dedata->mask.perm = 0x1; + dedata->attributes.operation = basepriv->attrib.operation; + break; + case DASD_ECKD_CCW_READ_TRACK_DATA: + dedata->mask.perm = 0x1; + dedata->attributes.operation = basepriv->attrib.operation; + dedata->blk_size = 0; break; case DASD_ECKD_CCW_WRITE: case DASD_ECKD_CCW_WRITE_MT: case DASD_ECKD_CCW_WRITE_KD: case DASD_ECKD_CCW_WRITE_KD_MT: - data->mask.perm = 0x02; - data->attributes.operation = basepriv->attrib.operation; + dedata->mask.perm = 0x02; + dedata->attributes.operation = basepriv->attrib.operation; rc = check_XRC_on_prefix(pfxdata, basedev); break; case DASD_ECKD_CCW_WRITE_CKD: case DASD_ECKD_CCW_WRITE_CKD_MT: - data->attributes.operation = DASD_BYPASS_CACHE; + dedata->attributes.operation = DASD_BYPASS_CACHE; rc = check_XRC_on_prefix(pfxdata, basedev); break; case DASD_ECKD_CCW_ERASE: case DASD_ECKD_CCW_WRITE_HOME_ADDRESS: case DASD_ECKD_CCW_WRITE_RECORD_ZERO: - data->mask.perm = 0x3; - data->mask.auth = 0x1; - data->attributes.operation = DASD_BYPASS_CACHE; + dedata->mask.perm = 0x3; + dedata->mask.auth = 0x1; + dedata->attributes.operation = DASD_BYPASS_CACHE; rc = check_XRC_on_prefix(pfxdata, basedev); break; - default: - DEV_MESSAGE(KERN_ERR, basedev, "unknown opcode 0x%x", cmd); + case DASD_ECKD_CCW_WRITE_TRACK_DATA: + dedata->mask.perm = 0x02; + dedata->attributes.operation = basepriv->attrib.operation; + dedata->blk_size = blksize; + rc = check_XRC_on_prefix(pfxdata, basedev); break; + default: + DBF_DEV_EVENT(DBF_ERR, basedev, + "PFX LRE unknown opcode 0x%x", cmd); + BUG(); + return -EINVAL; } - data->attributes.mode = 0x3; /* ECKD */ + dedata->attributes.mode = 0x3; /* ECKD */ if ((basepriv->rdc_data.cu_type == 0x2105 || basepriv->rdc_data.cu_type == 0x2107 || basepriv->rdc_data.cu_type == 0x1750) && !(basepriv->uses_cdl && trk < 2)) - data->ga_extended |= 0x40; /* Regular Data Format Mode */ + dedata->ga_extended |= 0x40; /* Regular Data Format Mode */ - geo.cyl = basepriv->rdc_data.no_cyl; - geo.head = basepriv->rdc_data.trk_per_cyl; - beg.cyl = trk / geo.head; - beg.head = trk % geo.head; - end.cyl = totrk / geo.head; - end.head = totrk % geo.head; + heads = basepriv->rdc_data.trk_per_cyl; + begcyl = trk / heads; + beghead = trk % heads; + endcyl = totrk / heads; + endhead = totrk % heads; /* check for sequential prestage - enhance cylinder range */ - if (data->attributes.operation == DASD_SEQ_PRESTAGE || - data->attributes.operation == DASD_SEQ_ACCESS) { + if (dedata->attributes.operation == DASD_SEQ_PRESTAGE || + dedata->attributes.operation == DASD_SEQ_ACCESS) { - if (end.cyl + basepriv->attrib.nr_cyl < geo.cyl) - end.cyl += basepriv->attrib.nr_cyl; + if (endcyl + basepriv->attrib.nr_cyl < basepriv->real_cyl) + endcyl += basepriv->attrib.nr_cyl; else - end.cyl = (geo.cyl - 1); + endcyl = (basepriv->real_cyl - 1); + } + + set_ch_t(&dedata->beg_ext, begcyl, beghead); + set_ch_t(&dedata->end_ext, endcyl, endhead); + + if (format == 1) { + fill_LRE_data(lredata, trk, rec_on_trk, count, cmd, + basedev, blksize, tlf); } - data->beg_ext.cyl = beg.cyl; - data->beg_ext.head = beg.head; - data->end_ext.cyl = end.cyl; - data->end_ext.head = end.head; return rc; } +static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, + unsigned int trk, unsigned int totrk, int cmd, + struct dasd_device *basedev, struct dasd_device *startdev) +{ + return prefix_LRE(ccw, pfxdata, trk, totrk, cmd, basedev, startdev, + 0, 0, 0, 0, 0); +} + static void -locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, - int rec_on_trk, int no_rec, int cmd, +locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, unsigned int trk, + unsigned int rec_on_trk, int no_rec, int cmd, struct dasd_device * device, int reclen) { struct dasd_eckd_private *private; @@ -491,12 +649,14 @@ locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, data->operation.operation = 0x0b; break; default: - DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd); - } - data->seek_addr.cyl = data->search_arg.cyl = - trk / private->rdc_data.trk_per_cyl; - data->seek_addr.head = data->search_arg.head = - trk % private->rdc_data.trk_per_cyl; + DBF_DEV_EVENT(DBF_ERR, device, "unknown locate record " + "opcode 0x%x", cmd); + } + set_ch_t(&data->seek_addr, + trk / private->rdc_data.trk_per_cyl, + trk % private->rdc_data.trk_per_cyl); + data->search_arg.cyl = data->seek_addr.cyl; + data->search_arg.head = data->seek_addr.head; data->search_arg.record = rec_on_trk; } @@ -585,8 +745,8 @@ static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device, cqr = dasd_smalloc_request("ECKD", 1 /* RCD */, ciw->count, device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "Could not allocate RCD request"); + DBF_DEV_EVENT(DBF_WARNING, device, "%s", + "Could not allocate RCD request"); return cqr; } @@ -736,14 +896,16 @@ static int dasd_eckd_read_conf(struct dasd_device *device) rc = dasd_eckd_read_conf_lpm(device, &conf_data, &conf_len, lpm); if (rc && rc != -EOPNOTSUPP) { /* -EOPNOTSUPP is ok */ - MESSAGE(KERN_WARNING, - "Read configuration data returned " - "error %d", rc); + DBF_EVENT(DBF_WARNING, + "Read configuration data returned " + "error %d for device: %s", rc, + dev_name(&device->cdev->dev)); return rc; } if (conf_data == NULL) { - MESSAGE(KERN_WARNING, "%s", "No configuration " - "data retrieved"); + DBF_EVENT(DBF_WARNING, "No configuration " + "data retrieved for device: %s", + dev_name(&device->cdev->dev)); continue; /* no error */ } /* save first valid configuration data */ @@ -790,8 +952,9 @@ static int dasd_eckd_read_features(struct dasd_device *device) sizeof(struct dasd_rssd_features)), device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "Could not allocate initialization request"); + DBF_EVENT(DBF_WARNING, "Could not allocate initialization " + "request for device: %s", + dev_name(&device->cdev->dev)); return PTR_ERR(cqr); } cqr->startdev = device; @@ -840,7 +1003,8 @@ static int dasd_eckd_read_features(struct dasd_device *device) /* * Build CP for Perform Subsystem Function - SSC. */ -static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device) +static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device, + int enable_pav) { struct dasd_ccw_req *cqr; struct dasd_psf_ssc_data *psf_ssc_data; @@ -851,15 +1015,17 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device) device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Could not allocate PSF-SSC request"); return cqr; } psf_ssc_data = (struct dasd_psf_ssc_data *)cqr->data; psf_ssc_data->order = PSF_ORDER_SSC; - psf_ssc_data->suborder = 0x88; - psf_ssc_data->reserved[0] = 0x88; - + psf_ssc_data->suborder = 0x40; + if (enable_pav) { + psf_ssc_data->suborder |= 0x88; + psf_ssc_data->reserved[0] = 0x88; + } ccw = cqr->cpaddr; ccw->cmd_code = DASD_ECKD_CCW_PSF; ccw->cda = (__u32)(addr_t)psf_ssc_data; @@ -880,12 +1046,12 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device) * call might change behaviour of DASD devices. */ static int -dasd_eckd_psf_ssc(struct dasd_device *device) +dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav) { struct dasd_ccw_req *cqr; int rc; - cqr = dasd_eckd_build_psf_ssc(device); + cqr = dasd_eckd_build_psf_ssc(device, enable_pav); if (IS_ERR(cqr)) return PTR_ERR(cqr); @@ -904,19 +1070,20 @@ static int dasd_eckd_validate_server(struct dasd_device *device) { int rc; struct dasd_eckd_private *private; + int enable_pav; - /* Currently PAV is the only reason to 'validate' server on LPAR */ if (dasd_nopav || MACHINE_IS_VM) - return 0; - - rc = dasd_eckd_psf_ssc(device); + enable_pav = 0; + else + enable_pav = 1; + rc = dasd_eckd_psf_ssc(device, enable_pav); /* may be requested feature is not available on server, * therefore just report error and go ahead */ private = (struct dasd_eckd_private *) device->private; - DEV_MESSAGE(KERN_INFO, device, - "PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d", - private->uid.vendor, private->uid.serial, - private->uid.ssid, rc); + DBF_EVENT(DBF_WARNING, "PSF-SSC on storage subsystem %s.%s.%04x " + "returned rc=%d for device: %s", + private->uid.vendor, private->uid.serial, + private->uid.ssid, rc, dev_name(&device->cdev->dev)); /* RE-Read Configuration Data */ return dasd_eckd_read_conf(device); } @@ -938,9 +1105,9 @@ dasd_eckd_check_characteristics(struct dasd_device *device) private = kzalloc(sizeof(struct dasd_eckd_private), GFP_KERNEL | GFP_DMA); if (private == NULL) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "memory allocation failed for private " - "data"); + dev_warn(&device->cdev->dev, + "Allocating memory for private DASD data " + "failed\n"); return -ENOMEM; } device->private = (void *) private; @@ -965,8 +1132,9 @@ dasd_eckd_check_characteristics(struct dasd_device *device) if (private->uid.type == UA_BASE_DEVICE) { block = dasd_alloc_block(); if (IS_ERR(block)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "could not allocate dasd block structure"); + DBF_EVENT(DBF_WARNING, "could not allocate dasd " + "block structure for device: %s", + dev_name(&device->cdev->dev)); rc = PTR_ERR(block); goto out_err1; } @@ -997,20 +1165,27 @@ dasd_eckd_check_characteristics(struct dasd_device *device) memset(rdc_data, 0, sizeof(rdc_data)); rc = dasd_generic_read_dev_chars(device, "ECKD", &rdc_data, 64); if (rc) { - DEV_MESSAGE(KERN_WARNING, device, - "Read device characteristics returned " - "rc=%d", rc); + DBF_EVENT(DBF_WARNING, + "Read device characteristics failed, rc=%d for " + "device: %s", rc, dev_name(&device->cdev->dev)); goto out_err3; } - DEV_MESSAGE(KERN_INFO, device, - "%04X/%02X(CU:%04X/%02X) Cyl:%d Head:%d Sec:%d", - private->rdc_data.dev_type, - private->rdc_data.dev_model, - private->rdc_data.cu_type, - private->rdc_data.cu_model.model, - private->rdc_data.no_cyl, - private->rdc_data.trk_per_cyl, - private->rdc_data.sec_per_trk); + /* find the vaild cylinder size */ + if (private->rdc_data.no_cyl == LV_COMPAT_CYL && + private->rdc_data.long_no_cyl) + private->real_cyl = private->rdc_data.long_no_cyl; + else + private->real_cyl = private->rdc_data.no_cyl; + + dev_info(&device->cdev->dev, "New DASD %04X/%02X (CU %04X/%02X) " + "with %d cylinders, %d heads, %d sectors\n", + private->rdc_data.dev_type, + private->rdc_data.dev_model, + private->rdc_data.cu_type, + private->rdc_data.cu_model.model, + private->real_cyl, + private->rdc_data.trk_per_cyl, + private->rdc_data.sec_per_trk); return 0; out_err3: @@ -1151,14 +1326,12 @@ dasd_eckd_end_analysis(struct dasd_block *block) status = private->init_cqr_status; private->init_cqr_status = -1; if (status != DASD_CQR_DONE) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "volume analysis returned unformatted disk"); + dev_warn(&device->cdev->dev, + "The DASD is not formatted\n"); return -EMEDIUMTYPE; } private->uses_cdl = 1; - /* Calculate number of blocks/records per track. */ - blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block); /* Check Track 0 for Compatible Disk Layout */ count_area = NULL; for (i = 0; i < 3; i++) { @@ -1182,8 +1355,8 @@ dasd_eckd_end_analysis(struct dasd_block *block) count_area = &private->count_area[0]; } else { if (private->count_area[3].record == 1) - DEV_MESSAGE(KERN_WARNING, device, "%s", - "Trk 0: no records after VTOC!"); + dev_warn(&device->cdev->dev, + "Track 0 has no records following the VTOC\n"); } if (count_area != NULL && count_area->kl == 0) { /* we found notthing violating our disk layout */ @@ -1191,8 +1364,8 @@ dasd_eckd_end_analysis(struct dasd_block *block) block->bp_block = count_area->dl; } if (block->bp_block == 0) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "Volume has incompatible disk layout"); + dev_warn(&device->cdev->dev, + "The disk layout of the DASD is not supported\n"); return -EMEDIUMTYPE; } block->s2b_shift = 0; /* bits to shift 512 to get a block */ @@ -1200,19 +1373,19 @@ dasd_eckd_end_analysis(struct dasd_block *block) block->s2b_shift++; blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block); - block->blocks = (private->rdc_data.no_cyl * + block->blocks = (private->real_cyl * private->rdc_data.trk_per_cyl * blk_per_trk); - DEV_MESSAGE(KERN_INFO, device, - "(%dkB blks): %dkB at %dkB/trk %s", - (block->bp_block >> 10), - ((private->rdc_data.no_cyl * - private->rdc_data.trk_per_cyl * - blk_per_trk * (block->bp_block >> 9)) >> 1), - ((blk_per_trk * block->bp_block) >> 10), - private->uses_cdl ? - "compatible disk layout" : "linux disk layout"); + dev_info(&device->cdev->dev, + "DASD with %d KB/block, %d KB total size, %d KB/track, " + "%s\n", (block->bp_block >> 10), + ((private->real_cyl * + private->rdc_data.trk_per_cyl * + blk_per_trk * (block->bp_block >> 9)) >> 1), + ((blk_per_trk * block->bp_block) >> 10), + private->uses_cdl ? + "compatible disk layout" : "linux disk layout"); return 0; } @@ -1262,31 +1435,35 @@ dasd_eckd_format_device(struct dasd_device * device, struct eckd_count *ect; struct ccw1 *ccw; void *data; - int rpt, cyl, head; + int rpt; + struct ch_t address; int cplength, datasize; int i; + int intensity = 0; + int r0_perm; private = (struct dasd_eckd_private *) device->private; rpt = recs_per_track(&private->rdc_data, 0, fdata->blksize); - cyl = fdata->start_unit / private->rdc_data.trk_per_cyl; - head = fdata->start_unit % private->rdc_data.trk_per_cyl; + set_ch_t(&address, + fdata->start_unit / private->rdc_data.trk_per_cyl, + fdata->start_unit % private->rdc_data.trk_per_cyl); /* Sanity checks. */ if (fdata->start_unit >= - (private->rdc_data.no_cyl * private->rdc_data.trk_per_cyl)) { - DEV_MESSAGE(KERN_INFO, device, "Track no %d too big!", - fdata->start_unit); + (private->real_cyl * private->rdc_data.trk_per_cyl)) { + dev_warn(&device->cdev->dev, "Start track number %d used in " + "formatting is too big\n", fdata->start_unit); return ERR_PTR(-EINVAL); } if (fdata->start_unit > fdata->stop_unit) { - DEV_MESSAGE(KERN_INFO, device, "Track %d reached! ending.", - fdata->start_unit); + dev_warn(&device->cdev->dev, "Start track %d used in " + "formatting exceeds end track\n", fdata->start_unit); return ERR_PTR(-EINVAL); } if (dasd_check_blocksize(fdata->blksize) != 0) { - DEV_MESSAGE(KERN_WARNING, device, - "Invalid blocksize %d...terminating!", - fdata->blksize); + dev_warn(&device->cdev->dev, + "The DASD cannot be formatted with block size %d\n", + fdata->blksize); return ERR_PTR(-EINVAL); } @@ -1296,9 +1473,17 @@ dasd_eckd_format_device(struct dasd_device * device, * Bit 1: write home address, currently not supported * Bit 2: invalidate tracks * Bit 3: use OS/390 compatible disk layout (cdl) + * Bit 4: do not allow storage subsystem to modify record zero * Only some bit combinations do make sense. */ - switch (fdata->intensity) { + if (fdata->intensity & 0x10) { + r0_perm = 0; + intensity = fdata->intensity & ~0x10; + } else { + r0_perm = 1; + intensity = fdata->intensity; + } + switch (intensity) { case 0x00: /* Normal format */ case 0x08: /* Normal format, use cdl. */ cplength = 2 + rpt; @@ -1322,8 +1507,8 @@ dasd_eckd_format_device(struct dasd_device * device, sizeof(struct eckd_count); break; default: - DEV_MESSAGE(KERN_WARNING, device, "Invalid flags 0x%x.", - fdata->intensity); + dev_warn(&device->cdev->dev, "An I/O control call used " + "incorrect flags 0x%x\n", fdata->intensity); return ERR_PTR(-EINVAL); } /* Allocate the format ccw request. */ @@ -1335,11 +1520,14 @@ dasd_eckd_format_device(struct dasd_device * device, data = fcp->data; ccw = fcp->cpaddr; - switch (fdata->intensity & ~0x08) { + switch (intensity & ~0x08) { case 0x00: /* Normal format. */ define_extent(ccw++, (struct DE_eckd_data *) data, fdata->start_unit, fdata->start_unit, DASD_ECKD_CCW_WRITE_CKD, device); + /* grant subsystem permission to format R0 */ + if (r0_perm) + ((struct DE_eckd_data *)data)->ga_extended |= 0x04; data += sizeof(struct DE_eckd_data); ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, (struct LO_eckd_data *) data, @@ -1373,11 +1561,11 @@ dasd_eckd_format_device(struct dasd_device * device, data += sizeof(struct LO_eckd_data); break; } - if (fdata->intensity & 0x01) { /* write record zero */ + if (intensity & 0x01) { /* write record zero */ ect = (struct eckd_count *) data; data += sizeof(struct eckd_count); - ect->cyl = cyl; - ect->head = head; + ect->cyl = address.cyl; + ect->head = address.head; ect->record = 0; ect->kl = 0; ect->dl = 8; @@ -1388,11 +1576,11 @@ dasd_eckd_format_device(struct dasd_device * device, ccw->cda = (__u32)(addr_t) ect; ccw++; } - if ((fdata->intensity & ~0x08) & 0x04) { /* erase track */ + if ((intensity & ~0x08) & 0x04) { /* erase track */ ect = (struct eckd_count *) data; data += sizeof(struct eckd_count); - ect->cyl = cyl; - ect->head = head; + ect->cyl = address.cyl; + ect->head = address.head; ect->record = 1; ect->kl = 0; ect->dl = 0; @@ -1405,20 +1593,20 @@ dasd_eckd_format_device(struct dasd_device * device, for (i = 0; i < rpt; i++) { ect = (struct eckd_count *) data; data += sizeof(struct eckd_count); - ect->cyl = cyl; - ect->head = head; + ect->cyl = address.cyl; + ect->head = address.head; ect->record = i + 1; ect->kl = 0; ect->dl = fdata->blksize; /* Check for special tracks 0-1 when formatting CDL */ - if ((fdata->intensity & 0x08) && + if ((intensity & 0x08) && fdata->start_unit == 0) { if (i < 3) { ect->kl = 4; ect->dl = sizes_trk0[i] - 4; } } - if ((fdata->intensity & 0x08) && + if ((intensity & 0x08) && fdata->start_unit == 1) { ect->kl = 44; ect->dl = LABEL_SIZE - 44; @@ -1479,57 +1667,69 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device, struct irb *irb) { char mask; + char *sense = NULL; /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; - if ((irb->scsw.cmd.dstat & mask) == mask) { + if ((scsw_dstat(&irb->scsw) & mask) == mask) { dasd_generic_handle_state_change(device); return; } /* summary unit check */ - if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && + if ((scsw_dstat(&irb->scsw) & DEV_STAT_UNIT_CHECK) && (irb->ecw[7] == 0x0D)) { dasd_alias_handle_summary_unit_check(device, irb); return; } - + sense = dasd_get_sense(irb); /* service information message SIM */ - if (irb->esw.esw0.erw.cons && !(irb->ecw[27] & DASD_SENSE_BIT_0) && - ((irb->ecw[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) { - dasd_3990_erp_handle_sim(device, irb->ecw); + if (sense && !(sense[27] & DASD_SENSE_BIT_0) && + ((sense[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) { + dasd_3990_erp_handle_sim(device, sense); dasd_schedule_device_bh(device); return; } - if ((irb->scsw.cmd.cc == 1) && - (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) && - (irb->scsw.cmd.actl & SCSW_ACTL_START_PEND) && - (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND)) { + if ((scsw_cc(&irb->scsw) == 1) && + (scsw_fctl(&irb->scsw) & SCSW_FCTL_START_FUNC) && + (scsw_actl(&irb->scsw) & SCSW_ACTL_START_PEND) && + (scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND)) { /* fake irb do nothing, they are handled elsewhere */ dasd_schedule_device_bh(device); return; } - if (!(irb->esw.esw0.erw.cons)) { + if (!sense) { /* just report other unsolicited interrupts */ - DEV_MESSAGE(KERN_ERR, device, "%s", + DBF_DEV_EVENT(DBF_ERR, device, "%s", "unsolicited interrupt received"); } else { - DEV_MESSAGE(KERN_ERR, device, "%s", + DBF_DEV_EVENT(DBF_ERR, device, "%s", "unsolicited interrupt received " "(sense available)"); - device->discipline->dump_sense(device, NULL, irb); + device->discipline->dump_sense_dbf(device, NULL, irb, + "unsolicited"); } dasd_schedule_device_bh(device); return; }; -static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, + +static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single( + struct dasd_device *startdev, struct dasd_block *block, - struct request *req) + struct request *req, + sector_t first_rec, + sector_t last_rec, + sector_t first_trk, + sector_t last_trk, + unsigned int first_offs, + unsigned int last_offs, + unsigned int blk_per_trk, + unsigned int blksize) { struct dasd_eckd_private *private; unsigned long *idaws; @@ -1539,11 +1739,9 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, struct req_iterator iter; struct bio_vec *bv; char *dst; - unsigned int blksize, blk_per_trk, off; + unsigned int off; int count, cidaw, cplength, datasize; - sector_t recid, first_rec, last_rec; - sector_t first_trk, last_trk; - unsigned int first_offs, last_offs; + sector_t recid; unsigned char cmd, rcmd; int use_prefix; struct dasd_device *basedev; @@ -1556,15 +1754,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, cmd = DASD_ECKD_CCW_WRITE_MT; else return ERR_PTR(-EINVAL); - /* Calculate number of blocks/records per track. */ - blksize = block->bp_block; - blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize); - /* Calculate record id of first and last block. */ - first_rec = first_trk = req->sector >> block->s2b_shift; - first_offs = sector_div(first_trk, blk_per_trk); - last_rec = last_trk = - (req->sector + req->nr_sectors - 1) >> block->s2b_shift; - last_offs = sector_div(last_trk, blk_per_trk); + /* Check struct bio and count the number of blocks for the request. */ count = 0; cidaw = 0; @@ -1714,6 +1904,497 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, return cqr; } +static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track( + struct dasd_device *startdev, + struct dasd_block *block, + struct request *req, + sector_t first_rec, + sector_t last_rec, + sector_t first_trk, + sector_t last_trk, + unsigned int first_offs, + unsigned int last_offs, + unsigned int blk_per_trk, + unsigned int blksize) +{ + struct dasd_eckd_private *private; + unsigned long *idaws; + struct dasd_ccw_req *cqr; + struct ccw1 *ccw; + struct req_iterator iter; + struct bio_vec *bv; + char *dst, *idaw_dst; + unsigned int cidaw, cplength, datasize; + unsigned int tlf; + sector_t recid; + unsigned char cmd; + struct dasd_device *basedev; + unsigned int trkcount, count, count_to_trk_end; + unsigned int idaw_len, seg_len, part_len, len_to_track_end; + unsigned char new_track, end_idaw; + sector_t trkid; + unsigned int recoffs; + + basedev = block->base; + private = (struct dasd_eckd_private *) basedev->private; + if (rq_data_dir(req) == READ) + cmd = DASD_ECKD_CCW_READ_TRACK_DATA; + else if (rq_data_dir(req) == WRITE) + cmd = DASD_ECKD_CCW_WRITE_TRACK_DATA; + else + return ERR_PTR(-EINVAL); + + /* Track based I/O needs IDAWs for each page, and not just for + * 64 bit addresses. We need additional idals for pages + * that get filled from two tracks, so we use the number + * of records as upper limit. + */ + cidaw = last_rec - first_rec + 1; + trkcount = last_trk - first_trk + 1; + + /* 1x prefix + one read/write ccw per track */ + cplength = 1 + trkcount; + + /* on 31-bit we need space for two 32 bit addresses per page + * on 64-bit one 64 bit address + */ + datasize = sizeof(struct PFX_eckd_data) + + cidaw * sizeof(unsigned long long); + + /* Allocate the ccw request. */ + cqr = dasd_smalloc_request(dasd_eckd_discipline.name, + cplength, datasize, startdev); + if (IS_ERR(cqr)) + return cqr; + ccw = cqr->cpaddr; + /* transfer length factor: how many bytes to read from the last track */ + if (first_trk == last_trk) + tlf = last_offs - first_offs + 1; + else + tlf = last_offs + 1; + tlf *= blksize; + + if (prefix_LRE(ccw++, cqr->data, first_trk, + last_trk, cmd, basedev, startdev, + 1 /* format */, first_offs + 1, + trkcount, blksize, + tlf) == -EAGAIN) { + /* Clock not in sync and XRC is enabled. + * Try again later. + */ + dasd_sfree_request(cqr, startdev); + return ERR_PTR(-EAGAIN); + } + + /* + * The translation of request into ccw programs must meet the + * following conditions: + * - all idaws but the first and the last must address full pages + * (or 2K blocks on 31-bit) + * - the scope of a ccw and it's idal ends with the track boundaries + */ + idaws = (unsigned long *) (cqr->data + sizeof(struct PFX_eckd_data)); + recid = first_rec; + new_track = 1; + end_idaw = 0; + len_to_track_end = 0; + idaw_dst = 0; + idaw_len = 0; + rq_for_each_segment(bv, req, iter) { + dst = page_address(bv->bv_page) + bv->bv_offset; + seg_len = bv->bv_len; + while (seg_len) { + if (new_track) { + trkid = recid; + recoffs = sector_div(trkid, blk_per_trk); + count_to_trk_end = blk_per_trk - recoffs; + count = min((last_rec - recid + 1), + (sector_t)count_to_trk_end); + len_to_track_end = count * blksize; + ccw[-1].flags |= CCW_FLAG_CC; + ccw->cmd_code = cmd; + ccw->count = len_to_track_end; + ccw->cda = (__u32)(addr_t)idaws; + ccw->flags = CCW_FLAG_IDA; + ccw++; + recid += count; + new_track = 0; + } + /* If we start a new idaw, everything is fine and the + * start of the new idaw is the start of this segment. + * If we continue an idaw, we must make sure that the + * current segment begins where the so far accumulated + * idaw ends + */ + if (!idaw_dst) + idaw_dst = dst; + if ((idaw_dst + idaw_len) != dst) { + dasd_sfree_request(cqr, startdev); + return ERR_PTR(-ERANGE); + } + part_len = min(seg_len, len_to_track_end); + seg_len -= part_len; + dst += part_len; + idaw_len += part_len; + len_to_track_end -= part_len; + /* collected memory area ends on an IDA_BLOCK border, + * -> create an idaw + * idal_create_words will handle cases where idaw_len + * is larger then IDA_BLOCK_SIZE + */ + if (!(__pa(idaw_dst + idaw_len) & (IDA_BLOCK_SIZE-1))) + end_idaw = 1; + /* We also need to end the idaw at track end */ + if (!len_to_track_end) { + new_track = 1; + end_idaw = 1; + } + if (end_idaw) { + idaws = idal_create_words(idaws, idaw_dst, + idaw_len); + idaw_dst = 0; + idaw_len = 0; + end_idaw = 0; + } + } + } + + if (blk_noretry_request(req) || + block->base->features & DASD_FEATURE_FAILFAST) + set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); + cqr->startdev = startdev; + cqr->memdev = startdev; + cqr->block = block; + cqr->expires = 5 * 60 * HZ; /* 5 minutes */ + cqr->lpm = private->path_data.ppm; + cqr->retries = 256; + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + return cqr; +} + +static int prepare_itcw(struct itcw *itcw, + unsigned int trk, unsigned int totrk, int cmd, + struct dasd_device *basedev, + struct dasd_device *startdev, + unsigned int rec_on_trk, int count, + unsigned int blksize, + unsigned int total_data_size, + unsigned int tlf, + unsigned int blk_per_trk) +{ + struct PFX_eckd_data pfxdata; + struct dasd_eckd_private *basepriv, *startpriv; + struct DE_eckd_data *dedata; + struct LRE_eckd_data *lredata; + struct dcw *dcw; + + u32 begcyl, endcyl; + u16 heads, beghead, endhead; + u8 pfx_cmd; + + int rc = 0; + int sector = 0; + int dn, d; + + + /* setup prefix data */ + basepriv = (struct dasd_eckd_private *) basedev->private; + startpriv = (struct dasd_eckd_private *) startdev->private; + dedata = &pfxdata.define_extent; + lredata = &pfxdata.locate_record; + + memset(&pfxdata, 0, sizeof(pfxdata)); + pfxdata.format = 1; /* PFX with LRE */ + pfxdata.base_address = basepriv->ned->unit_addr; + pfxdata.base_lss = basepriv->ned->ID; + pfxdata.validity.define_extent = 1; + + /* private uid is kept up to date, conf_data may be outdated */ + if (startpriv->uid.type != UA_BASE_DEVICE) { + pfxdata.validity.verify_base = 1; + if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) + pfxdata.validity.hyper_pav = 1; + } + + switch (cmd) { + case DASD_ECKD_CCW_READ_TRACK_DATA: + dedata->mask.perm = 0x1; + dedata->attributes.operation = basepriv->attrib.operation; + dedata->blk_size = blksize; + dedata->ga_extended |= 0x42; + lredata->operation.orientation = 0x0; + lredata->operation.operation = 0x0C; + lredata->auxiliary.check_bytes = 0x01; + pfx_cmd = DASD_ECKD_CCW_PFX_READ; + break; + case DASD_ECKD_CCW_WRITE_TRACK_DATA: + dedata->mask.perm = 0x02; + dedata->attributes.operation = basepriv->attrib.operation; + dedata->blk_size = blksize; + rc = check_XRC_on_prefix(&pfxdata, basedev); + dedata->ga_extended |= 0x42; + lredata->operation.orientation = 0x0; + lredata->operation.operation = 0x3F; + lredata->extended_operation = 0x23; + lredata->auxiliary.check_bytes = 0x2; + pfx_cmd = DASD_ECKD_CCW_PFX; + break; + default: + DBF_DEV_EVENT(DBF_ERR, basedev, + "prepare itcw, unknown opcode 0x%x", cmd); + BUG(); + break; + } + if (rc) + return rc; + + dedata->attributes.mode = 0x3; /* ECKD */ + + heads = basepriv->rdc_data.trk_per_cyl; + begcyl = trk / heads; + beghead = trk % heads; + endcyl = totrk / heads; + endhead = totrk % heads; + + /* check for sequential prestage - enhance cylinder range */ + if (dedata->attributes.operation == DASD_SEQ_PRESTAGE || + dedata->attributes.operation == DASD_SEQ_ACCESS) { + + if (endcyl + basepriv->attrib.nr_cyl < basepriv->real_cyl) + endcyl += basepriv->attrib.nr_cyl; + else + endcyl = (basepriv->real_cyl - 1); + } + + set_ch_t(&dedata->beg_ext, begcyl, beghead); + set_ch_t(&dedata->end_ext, endcyl, endhead); + + dedata->ep_format = 0x20; /* records per track is valid */ + dedata->ep_rec_per_track = blk_per_trk; + + if (rec_on_trk) { + switch (basepriv->rdc_data.dev_type) { + case 0x3390: + dn = ceil_quot(blksize + 6, 232); + d = 9 + ceil_quot(blksize + 6 * (dn + 1), 34); + sector = (49 + (rec_on_trk - 1) * (10 + d)) / 8; + break; + case 0x3380: + d = 7 + ceil_quot(blksize + 12, 32); + sector = (39 + (rec_on_trk - 1) * (8 + d)) / 7; + break; + } + } + + lredata->auxiliary.length_valid = 1; + lredata->auxiliary.length_scope = 1; + lredata->auxiliary.imbedded_ccw_valid = 1; + lredata->length = tlf; + lredata->imbedded_ccw = cmd; + lredata->count = count; + lredata->sector = sector; + set_ch_t(&lredata->seek_addr, begcyl, beghead); + lredata->search_arg.cyl = lredata->seek_addr.cyl; + lredata->search_arg.head = lredata->seek_addr.head; + lredata->search_arg.record = rec_on_trk; + + dcw = itcw_add_dcw(itcw, pfx_cmd, 0, + &pfxdata, sizeof(pfxdata), total_data_size); + + return rc; +} + +static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( + struct dasd_device *startdev, + struct dasd_block *block, + struct request *req, + sector_t first_rec, + sector_t last_rec, + sector_t first_trk, + sector_t last_trk, + unsigned int first_offs, + unsigned int last_offs, + unsigned int blk_per_trk, + unsigned int blksize) +{ + struct dasd_eckd_private *private; + struct dasd_ccw_req *cqr; + struct req_iterator iter; + struct bio_vec *bv; + char *dst; + unsigned int trkcount, ctidaw; + unsigned char cmd; + struct dasd_device *basedev; + unsigned int tlf; + struct itcw *itcw; + struct tidaw *last_tidaw = NULL; + int itcw_op; + size_t itcw_size; + + basedev = block->base; + private = (struct dasd_eckd_private *) basedev->private; + if (rq_data_dir(req) == READ) { + cmd = DASD_ECKD_CCW_READ_TRACK_DATA; + itcw_op = ITCW_OP_READ; + } else if (rq_data_dir(req) == WRITE) { + cmd = DASD_ECKD_CCW_WRITE_TRACK_DATA; + itcw_op = ITCW_OP_WRITE; + } else + return ERR_PTR(-EINVAL); + + /* trackbased I/O needs address all memory via TIDAWs, + * not just for 64 bit addresses. This allows us to map + * each segment directly to one tidaw. + */ + trkcount = last_trk - first_trk + 1; + ctidaw = 0; + rq_for_each_segment(bv, req, iter) { + ++ctidaw; + } + + /* Allocate the ccw request. */ + itcw_size = itcw_calc_size(0, ctidaw, 0); + cqr = dasd_smalloc_request(dasd_eckd_discipline.name, + 0, itcw_size, startdev); + if (IS_ERR(cqr)) + return cqr; + + cqr->cpmode = 1; + cqr->startdev = startdev; + cqr->memdev = startdev; + cqr->block = block; + cqr->expires = 100*HZ; + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + cqr->retries = 10; + + /* transfer length factor: how many bytes to read from the last track */ + if (first_trk == last_trk) + tlf = last_offs - first_offs + 1; + else + tlf = last_offs + 1; + tlf *= blksize; + + itcw = itcw_init(cqr->data, itcw_size, itcw_op, 0, ctidaw, 0); + cqr->cpaddr = itcw_get_tcw(itcw); + + if (prepare_itcw(itcw, first_trk, last_trk, + cmd, basedev, startdev, + first_offs + 1, + trkcount, blksize, + (last_rec - first_rec + 1) * blksize, + tlf, blk_per_trk) == -EAGAIN) { + /* Clock not in sync and XRC is enabled. + * Try again later. + */ + dasd_sfree_request(cqr, startdev); + return ERR_PTR(-EAGAIN); + } + + /* + * A tidaw can address 4k of memory, but must not cross page boundaries + * We can let the block layer handle this by setting + * blk_queue_segment_boundary to page boundaries and + * blk_max_segment_size to page size when setting up the request queue. + */ + rq_for_each_segment(bv, req, iter) { + dst = page_address(bv->bv_page) + bv->bv_offset; + last_tidaw = itcw_add_tidaw(itcw, 0x00, dst, bv->bv_len); + if (IS_ERR(last_tidaw)) + return (struct dasd_ccw_req *)last_tidaw; + } + + last_tidaw->flags |= 0x80; + itcw_finalize(itcw); + + if (blk_noretry_request(req) || + block->base->features & DASD_FEATURE_FAILFAST) + set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); + cqr->startdev = startdev; + cqr->memdev = startdev; + cqr->block = block; + cqr->expires = 5 * 60 * HZ; /* 5 minutes */ + cqr->lpm = private->path_data.ppm; + cqr->retries = 256; + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + return cqr; +} + +static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, + struct dasd_block *block, + struct request *req) +{ + int tpm, cmdrtd, cmdwtd; + int use_prefix; + + struct dasd_eckd_private *private; + int fcx_in_css, fcx_in_gneq, fcx_in_features; + struct dasd_device *basedev; + sector_t first_rec, last_rec; + sector_t first_trk, last_trk; + unsigned int first_offs, last_offs; + unsigned int blk_per_trk, blksize; + int cdlspecial; + struct dasd_ccw_req *cqr; + + basedev = block->base; + private = (struct dasd_eckd_private *) basedev->private; + + /* Calculate number of blocks/records per track. */ + blksize = block->bp_block; + blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize); + /* Calculate record id of first and last block. */ + first_rec = first_trk = req->sector >> block->s2b_shift; + first_offs = sector_div(first_trk, blk_per_trk); + last_rec = last_trk = + (req->sector + req->nr_sectors - 1) >> block->s2b_shift; + last_offs = sector_div(last_trk, blk_per_trk); + cdlspecial = (private->uses_cdl && first_rec < 2*blk_per_trk); + + /* is transport mode supported ? */ + fcx_in_css = css_general_characteristics.fcx; + fcx_in_gneq = private->gneq->reserved2[7] & 0x04; + fcx_in_features = private->features.feature[40] & 0x80; + tpm = fcx_in_css && fcx_in_gneq && fcx_in_features; + + /* is read track data and write track data in command mode supported? */ + cmdrtd = private->features.feature[9] & 0x20; + cmdwtd = private->features.feature[12] & 0x40; + use_prefix = private->features.feature[8] & 0x01; + + cqr = NULL; + if (cdlspecial || dasd_page_cache) { + /* do nothing, just fall through to the cmd mode single case */ + } else if (!dasd_nofcx && tpm && (first_trk == last_trk)) { + cqr = dasd_eckd_build_cp_tpm_track(startdev, block, req, + first_rec, last_rec, + first_trk, last_trk, + first_offs, last_offs, + blk_per_trk, blksize); + if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN) + cqr = NULL; + } else if (use_prefix && + (((rq_data_dir(req) == READ) && cmdrtd) || + ((rq_data_dir(req) == WRITE) && cmdwtd))) { + cqr = dasd_eckd_build_cp_cmd_track(startdev, block, req, + first_rec, last_rec, + first_trk, last_trk, + first_offs, last_offs, + blk_per_trk, blksize); + if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN) + cqr = NULL; + } + if (!cqr) + cqr = dasd_eckd_build_cp_cmd_single(startdev, block, req, + first_rec, last_rec, + first_trk, last_trk, + first_offs, last_offs, + blk_per_trk, blksize); + return cqr; +} + static int dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req) { @@ -1767,7 +2448,7 @@ out: } /* - * Modify ccw chain in cqr so it can be started on a base device. + * Modify ccw/tcw in cqr so it can be started on a base device. * * Note that this is not enough to restart the cqr! * Either reset cqr->startdev as well (summary unit check handling) @@ -1777,13 +2458,24 @@ void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *cqr) { struct ccw1 *ccw; struct PFX_eckd_data *pfxdata; - - ccw = cqr->cpaddr; - pfxdata = cqr->data; - - if (ccw->cmd_code == DASD_ECKD_CCW_PFX) { + struct tcw *tcw; + struct tccb *tccb; + struct dcw *dcw; + + if (cqr->cpmode == 1) { + tcw = cqr->cpaddr; + tccb = tcw_get_tccb(tcw); + dcw = (struct dcw *)&tccb->tca[0]; + pfxdata = (struct PFX_eckd_data *)&dcw->cd[0]; pfxdata->validity.verify_base = 0; pfxdata->validity.hyper_pav = 0; + } else { + ccw = cqr->cpaddr; + pfxdata = cqr->data; + if (ccw->cmd_code == DASD_ECKD_CCW_PFX) { + pfxdata->validity.verify_base = 0; + pfxdata->validity.hyper_pav = 0; + } } } @@ -1861,6 +2553,7 @@ dasd_eckd_release(struct dasd_device *device) { struct dasd_ccw_req *cqr; int rc; + struct ccw1 *ccw; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -1868,14 +2561,15 @@ dasd_eckd_release(struct dasd_device *device) cqr = dasd_smalloc_request(dasd_eckd_discipline.name, 1, 32, device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Could not allocate initialization request"); return PTR_ERR(cqr); } - cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RELEASE; - cqr->cpaddr->flags |= CCW_FLAG_SLI; - cqr->cpaddr->count = 32; - cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_RELEASE; + ccw->flags |= CCW_FLAG_SLI; + ccw->count = 32; + ccw->cda = (__u32)(addr_t) cqr->data; cqr->startdev = device; cqr->memdev = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); @@ -1902,6 +2596,7 @@ dasd_eckd_reserve(struct dasd_device *device) { struct dasd_ccw_req *cqr; int rc; + struct ccw1 *ccw; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -1909,14 +2604,15 @@ dasd_eckd_reserve(struct dasd_device *device) cqr = dasd_smalloc_request(dasd_eckd_discipline.name, 1, 32, device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Could not allocate initialization request"); return PTR_ERR(cqr); } - cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RESERVE; - cqr->cpaddr->flags |= CCW_FLAG_SLI; - cqr->cpaddr->count = 32; - cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_RESERVE; + ccw->flags |= CCW_FLAG_SLI; + ccw->count = 32; + ccw->cda = (__u32)(addr_t) cqr->data; cqr->startdev = device; cqr->memdev = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); @@ -1942,6 +2638,7 @@ dasd_eckd_steal_lock(struct dasd_device *device) { struct dasd_ccw_req *cqr; int rc; + struct ccw1 *ccw; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -1949,14 +2646,15 @@ dasd_eckd_steal_lock(struct dasd_device *device) cqr = dasd_smalloc_request(dasd_eckd_discipline.name, 1, 32, device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Could not allocate initialization request"); return PTR_ERR(cqr); } - cqr->cpaddr->cmd_code = DASD_ECKD_CCW_SLCK; - cqr->cpaddr->flags |= CCW_FLAG_SLI; - cqr->cpaddr->count = 32; - cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_SLCK; + ccw->flags |= CCW_FLAG_SLI; + ccw->count = 32; + ccw->cda = (__u32)(addr_t) cqr->data; cqr->startdev = device; cqr->memdev = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); @@ -1990,7 +2688,7 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp) sizeof(struct dasd_rssd_perf_stats_t)), device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Could not allocate initialization request"); return PTR_ERR(cqr); } @@ -2080,9 +2778,9 @@ dasd_eckd_set_attrib(struct dasd_device *device, void __user *argp) return -EFAULT; private->attrib = attrib; - DEV_MESSAGE(KERN_INFO, device, - "cache operation mode set to %x (%i cylinder prestage)", - private->attrib.operation, private->attrib.nr_cyl); + dev_info(&device->cdev->dev, + "The DASD cache mode was set to %x (%i cylinder prestage)\n", + private->attrib.operation, private->attrib.nr_cyl); return 0; } @@ -2133,7 +2831,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp) /* setup CCWs for PSF + RSSD */ cqr = dasd_smalloc_request("ECKD", 2 , 0, device); if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Could not allocate initialization request"); rc = PTR_ERR(cqr); goto out_free; @@ -2242,11 +2940,54 @@ dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page) return len; } +static void +dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req, + struct irb *irb, char *reason) +{ + u64 *sense; + int sl; + struct tsb *tsb; + + sense = NULL; + tsb = NULL; + if (req && scsw_is_tm(&req->irb.scsw)) { + if (irb->scsw.tm.tcw) + tsb = tcw_get_tsb( + (struct tcw *)(unsigned long)irb->scsw.tm.tcw); + if (tsb && (irb->scsw.tm.fcxs == 0x01)) { + switch (tsb->flags & 0x07) { + case 1: /* tsa_iostat */ + sense = (u64 *)tsb->tsa.iostat.sense; + break; + case 2: /* ts_ddpc */ + sense = (u64 *)tsb->tsa.ddpc.sense; + break; + case 3: /* tsa_intrg */ + break; + } + } + } else { + if (irb->esw.esw0.erw.cons) + sense = (u64 *)irb->ecw; + } + if (sense) { + for (sl = 0; sl < 4; sl++) { + DBF_DEV_EVENT(DBF_EMERG, device, + "%s: %016llx %016llx %016llx %016llx", + reason, sense[0], sense[1], sense[2], + sense[3]); + } + } else { + DBF_DEV_EVENT(DBF_EMERG, device, "%s", + "SORRY - NO VALID SENSE AVAILABLE\n"); + } +} + /* * Print sense data and related channel program. * Parts are printed because printk buffer is only 1024 bytes. */ -static void dasd_eckd_dump_sense(struct dasd_device *device, +static void dasd_eckd_dump_sense_ccw(struct dasd_device *device, struct dasd_ccw_req *req, struct irb *irb) { char *page; @@ -2255,8 +2996,8 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, page = (char *) get_zeroed_page(GFP_ATOMIC); if (page == NULL) { - DEV_MESSAGE(KERN_ERR, device, " %s", - "No memory to dump sense data"); + DBF_DEV_EVENT(DBF_WARNING, device, "%s", + "No memory to dump sense data\n"); return; } /* dump the sense data */ @@ -2265,7 +3006,7 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, dev_name(&device->cdev->dev)); len += sprintf(page + len, KERN_ERR PRINTK_HEADER " in req: %p CS: 0x%02X DS: 0x%02X\n", req, - irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); + scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw)); len += sprintf(page + len, KERN_ERR PRINTK_HEADER " device %s: Failing CCW: %p\n", dev_name(&device->cdev->dev), @@ -2341,6 +3082,147 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, free_page((unsigned long) page); } + +/* + * Print sense data from a tcw. + */ +static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, + struct dasd_ccw_req *req, struct irb *irb) +{ + char *page; + int len, sl, sct, residual; + + struct tsb *tsb; + u8 *sense; + + + page = (char *) get_zeroed_page(GFP_ATOMIC); + if (page == NULL) { + DBF_DEV_EVENT(DBF_WARNING, device, " %s", + "No memory to dump sense data"); + return; + } + /* dump the sense data */ + len = sprintf(page, KERN_ERR PRINTK_HEADER + " I/O status report for device %s:\n", + dev_name(&device->cdev->dev)); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " in req: %p CS: 0x%02X DS: 0x%02X " + "fcxs: 0x%02X schxs: 0x%02X\n", req, + scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw), + irb->scsw.tm.fcxs, irb->scsw.tm.schxs); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " device %s: Failing TCW: %p\n", + dev_name(&device->cdev->dev), + (void *) (addr_t) irb->scsw.tm.tcw); + + tsb = NULL; + sense = NULL; + if (irb->scsw.tm.tcw) + tsb = tcw_get_tsb( + (struct tcw *)(unsigned long)irb->scsw.tm.tcw); + + if (tsb && (irb->scsw.tm.fcxs == 0x01)) { + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->length %d\n", tsb->length); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->flags %x\n", tsb->flags); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->dcw_offset %d\n", tsb->dcw_offset); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->count %d\n", tsb->count); + residual = tsb->count - 28; + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " residual %d\n", residual); + + switch (tsb->flags & 0x07) { + case 1: /* tsa_iostat */ + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.iostat.dev_time %d\n", + tsb->tsa.iostat.dev_time); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.iostat.def_time %d\n", + tsb->tsa.iostat.def_time); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.iostat.queue_time %d\n", + tsb->tsa.iostat.queue_time); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.iostat.dev_busy_time %d\n", + tsb->tsa.iostat.dev_busy_time); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.iostat.dev_act_time %d\n", + tsb->tsa.iostat.dev_act_time); + sense = tsb->tsa.iostat.sense; + break; + case 2: /* ts_ddpc */ + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.ddpc.rc %d\n", tsb->tsa.ddpc.rc); + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.ddpc.rcq: "); + for (sl = 0; sl < 16; sl++) { + for (sct = 0; sct < 8; sct++) { + len += sprintf(page + len, " %02x", + tsb->tsa.ddpc.rcq[sl]); + } + len += sprintf(page + len, "\n"); + } + sense = tsb->tsa.ddpc.sense; + break; + case 3: /* tsa_intrg */ + len += sprintf(page + len, KERN_ERR PRINTK_HEADER + " tsb->tsa.intrg.: not supportet yet \n"); + break; + } + + if (sense) { + for (sl = 0; sl < 4; sl++) { + len += sprintf(page + len, + KERN_ERR PRINTK_HEADER + " Sense(hex) %2d-%2d:", + (8 * sl), ((8 * sl) + 7)); + for (sct = 0; sct < 8; sct++) { + len += sprintf(page + len, " %02x", + sense[8 * sl + sct]); + } + len += sprintf(page + len, "\n"); + } + + if (sense[27] & DASD_SENSE_BIT_0) { + /* 24 Byte Sense Data */ + sprintf(page + len, KERN_ERR PRINTK_HEADER + " 24 Byte: %x MSG %x, " + "%s MSGb to SYSOP\n", + sense[7] >> 4, sense[7] & 0x0f, + sense[1] & 0x10 ? "" : "no"); + } else { + /* 32 Byte Sense Data */ + sprintf(page + len, KERN_ERR PRINTK_HEADER + " 32 Byte: Format: %x " + "Exception class %x\n", + sense[6] & 0x0f, sense[22] >> 4); + } + } else { + sprintf(page + len, KERN_ERR PRINTK_HEADER + " SORRY - NO VALID SENSE AVAILABLE\n"); + } + } else { + sprintf(page + len, KERN_ERR PRINTK_HEADER + " SORRY - NO TSB DATA AVAILABLE\n"); + } + printk("%s", page); + free_page((unsigned long) page); +} + +static void dasd_eckd_dump_sense(struct dasd_device *device, + struct dasd_ccw_req *req, struct irb *irb) +{ + if (req && scsw_is_tm(&req->irb.scsw)) + dasd_eckd_dump_sense_tcw(device, req, irb); + else + dasd_eckd_dump_sense_ccw(device, req, irb); +} + + /* * max_blocks is dependent on the amount of storage that is available * in the static io buffer for each device. Currently each device has @@ -2375,6 +3257,7 @@ static struct dasd_discipline dasd_eckd_discipline = { .build_cp = dasd_eckd_build_alias_cp, .free_cp = dasd_eckd_free_alias_cp, .dump_sense = dasd_eckd_dump_sense, + .dump_sense_dbf = dasd_eckd_dump_sense_dbf, .fill_info = dasd_eckd_fill_info, .ioctl = dasd_eckd_ioctl, }; diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 2476f87d21d0..ad45bcac3ce4 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -38,8 +38,11 @@ #define DASD_ECKD_CCW_RELEASE 0x94 #define DASD_ECKD_CCW_READ_CKD_MT 0x9e #define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d +#define DASD_ECKD_CCW_WRITE_TRACK_DATA 0xA5 +#define DASD_ECKD_CCW_READ_TRACK_DATA 0xA6 #define DASD_ECKD_CCW_RESERVE 0xB4 #define DASD_ECKD_CCW_PFX 0xE7 +#define DASD_ECKD_CCW_PFX_READ 0xEA #define DASD_ECKD_CCW_RSCK 0xF9 /* @@ -48,6 +51,11 @@ #define PSF_ORDER_PRSSD 0x18 #define PSF_ORDER_SSC 0x1D +/* + * Size that is reportet for large volumes in the old 16-bit no_cyl field + */ +#define LV_COMPAT_CYL 0xFFFE + /***************************************************************************** * SECTION: Type Definitions ****************************************************************************/ @@ -118,7 +126,9 @@ struct DE_eckd_data { unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */ __u8 ep_format; /* Extended Parameter format byte */ __u8 ep_prio; /* Extended Parameter priority I/O byte */ - __u8 ep_reserved[6]; /* Extended Parameter Reserved */ + __u8 ep_reserved1; /* Extended Parameter Reserved */ + __u8 ep_rec_per_track; /* Number of records on a track */ + __u8 ep_reserved[4]; /* Extended Parameter Reserved */ } __attribute__ ((packed)); struct LO_eckd_data { @@ -139,11 +149,37 @@ struct LO_eckd_data { __u16 length; } __attribute__ ((packed)); +struct LRE_eckd_data { + struct { + unsigned char orientation:2; + unsigned char operation:6; + } __attribute__ ((packed)) operation; + struct { + unsigned char length_valid:1; + unsigned char length_scope:1; + unsigned char imbedded_ccw_valid:1; + unsigned char check_bytes:2; + unsigned char imbedded_count_valid:1; + unsigned char reserved:1; + unsigned char read_count_suffix:1; + } __attribute__ ((packed)) auxiliary; + __u8 imbedded_ccw; + __u8 count; + struct ch_t seek_addr; + struct chr_t search_arg; + __u8 sector; + __u16 length; + __u8 imbedded_count; + __u8 extended_operation; + __u16 extended_parameter_length; + __u8 extended_parameter[0]; +} __attribute__ ((packed)); + /* Prefix data for format 0x00 and 0x01 */ struct PFX_eckd_data { unsigned char format; struct { - unsigned char define_extend:1; + unsigned char define_extent:1; unsigned char time_stamp:1; unsigned char verify_base:1; unsigned char hyper_pav:1; @@ -153,9 +189,8 @@ struct PFX_eckd_data { __u8 aux; __u8 base_lss; __u8 reserved[7]; - struct DE_eckd_data define_extend; - struct LO_eckd_data locate_record; - __u8 LO_extended_data[4]; + struct DE_eckd_data define_extent; + struct LRE_eckd_data locate_record; } __attribute__ ((packed)); struct dasd_eckd_characteristics { @@ -228,7 +263,8 @@ struct dasd_eckd_characteristics { __u8 factor7; __u8 factor8; __u8 reserved2[3]; - __u8 reserved3[10]; + __u8 reserved3[6]; + __u32 long_no_cyl; } __attribute__ ((packed)); /* elements of the configuration data */ @@ -406,6 +442,7 @@ struct dasd_eckd_private { int uses_cdl; struct attrib_data_t attrib; /* e.g. cache operations */ struct dasd_rssd_features features; + u32 real_cyl; /* alias managemnet */ struct dasd_uid uid; diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index f8e05ce98621..c24c8c30380d 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -6,6 +6,8 @@ * Author(s): Stefan Weinhuber <wein@de.ibm.com> */ +#define KMSG_COMPONENT "dasd" + #include <linux/init.h> #include <linux/fs.h> #include <linux/kernel.h> @@ -297,11 +299,12 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device, struct dasd_eer_header header; unsigned long flags; struct eerbuffer *eerb; + char *sense; /* go through cqr chain and count the valid sense data sets */ data_size = 0; for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers) - if (temp_cqr->irb.esw.esw0.erw.cons) + if (dasd_get_sense(&temp_cqr->irb)) data_size += 32; header.total_size = sizeof(header) + data_size + 4; /* "EOR" */ @@ -316,9 +319,11 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device, list_for_each_entry(eerb, &bufferlist, list) { dasd_eer_start_record(eerb, header.total_size); dasd_eer_write_buffer(eerb, (char *) &header, sizeof(header)); - for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers) - if (temp_cqr->irb.esw.esw0.erw.cons) - dasd_eer_write_buffer(eerb, cqr->irb.ecw, 32); + for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers) { + sense = dasd_get_sense(&temp_cqr->irb); + if (sense) + dasd_eer_write_buffer(eerb, sense, 32); + } dasd_eer_write_buffer(eerb, "EOR", 4); } spin_unlock_irqrestore(&bufferlock, flags); @@ -451,6 +456,7 @@ int dasd_eer_enable(struct dasd_device *device) { struct dasd_ccw_req *cqr; unsigned long flags; + struct ccw1 *ccw; if (device->eer_cqr) return 0; @@ -468,10 +474,11 @@ int dasd_eer_enable(struct dasd_device *device) cqr->expires = 10 * HZ; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); - cqr->cpaddr->cmd_code = DASD_ECKD_CCW_SNSS; - cqr->cpaddr->count = SNSS_DATA_SIZE; - cqr->cpaddr->flags = 0; - cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_SNSS; + ccw->count = SNSS_DATA_SIZE; + ccw->flags = 0; + ccw->cda = (__u32)(addr_t) cqr->data; cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; @@ -534,7 +541,7 @@ static int dasd_eer_open(struct inode *inp, struct file *filp) if (eerb->buffer_page_count < 1 || eerb->buffer_page_count > INT_MAX / PAGE_SIZE) { kfree(eerb); - MESSAGE(KERN_WARNING, "can't open device since module " + DBF_EVENT(DBF_WARNING, "can't open device since module " "parameter eer_pages is smaller than 1 or" " bigger than %d", (int)(INT_MAX / PAGE_SIZE)); unlock_kernel(); @@ -687,7 +694,7 @@ int __init dasd_eer_init(void) if (rc) { kfree(dasd_eer_dev); dasd_eer_dev = NULL; - MESSAGE(KERN_ERR, "%s", "dasd_eer_init could not " + DBF_EVENT(DBF_ERR, "%s", "dasd_eer_init could not " "register misc device"); return rc; } diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c index 8f10000851a3..d970ce2814be 100644 --- a/drivers/s390/block/dasd_erp.c +++ b/drivers/s390/block/dasd_erp.c @@ -9,6 +9,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/ctype.h> #include <linux/init.h> @@ -91,14 +93,14 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr) /* just retry - there is nothing to save ... I got no sense data.... */ if (cqr->retries > 0) { - DEV_MESSAGE (KERN_DEBUG, device, + DBF_DEV_EVENT(DBF_DEBUG, device, "default ERP called (%i retries left)", cqr->retries); cqr->lpm = LPM_ANYPATH; cqr->status = DASD_CQR_FILLED; } else { - DEV_MESSAGE (KERN_WARNING, device, "%s", - "default ERP called (NO retry left)"); + dev_err(&device->cdev->dev, + "default ERP has run out of retries and failed\n"); cqr->status = DASD_CQR_FAILED; cqr->stopclk = get_clock(); } @@ -162,8 +164,21 @@ dasd_log_sense(struct dasd_ccw_req *cqr, struct irb *irb) device->discipline->dump_sense(device, cqr, irb); } +void +dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb) +{ + struct dasd_device *device; + + device = cqr->startdev; + /* dump sense data to s390 debugfeature*/ + if (device->discipline && device->discipline->dump_sense_dbf) + device->discipline->dump_sense_dbf(device, cqr, irb, "log"); +} +EXPORT_SYMBOL(dasd_log_sense_dbf); + EXPORT_SYMBOL(dasd_default_erp_action); EXPORT_SYMBOL(dasd_default_erp_postaction); EXPORT_SYMBOL(dasd_alloc_erp_request); EXPORT_SYMBOL(dasd_free_erp_request); EXPORT_SYMBOL(dasd_log_sense); + diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index f1d176021694..a3eb6fd14673 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -6,6 +6,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/stddef.h> #include <linux/kernel.h> #include <asm/debug.h> @@ -128,17 +130,18 @@ dasd_fba_check_characteristics(struct dasd_device *device) private = kzalloc(sizeof(struct dasd_fba_private), GFP_KERNEL | GFP_DMA); if (private == NULL) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "memory allocation failed for private " - "data"); + dev_warn(&device->cdev->dev, + "Allocating memory for private DASD " + "data failed\n"); return -ENOMEM; } device->private = (void *) private; } block = dasd_alloc_block(); if (IS_ERR(block)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", - "could not allocate dasd block structure"); + DBF_EVENT(DBF_WARNING, "could not allocate dasd block " + "structure for device: %s", + dev_name(&device->cdev->dev)); device->private = NULL; kfree(private); return PTR_ERR(block); @@ -150,9 +153,9 @@ dasd_fba_check_characteristics(struct dasd_device *device) rdc_data = (void *) &(private->rdc_data); rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32); if (rc) { - DEV_MESSAGE(KERN_WARNING, device, - "Read device characteristics returned error %d", - rc); + DBF_EVENT(DBF_WARNING, "Read device characteristics returned " + "error %d for device: %s", + rc, dev_name(&device->cdev->dev)); device->block = NULL; dasd_free_block(block); device->private = NULL; @@ -160,15 +163,16 @@ dasd_fba_check_characteristics(struct dasd_device *device) return rc; } - DEV_MESSAGE(KERN_INFO, device, - "%04X/%02X(CU:%04X/%02X) %dMB at(%d B/blk)", - cdev->id.dev_type, - cdev->id.dev_model, - cdev->id.cu_type, - cdev->id.cu_model, - ((private->rdc_data.blk_bdsa * - (private->rdc_data.blk_size >> 9)) >> 11), - private->rdc_data.blk_size); + dev_info(&device->cdev->dev, + "New FBA DASD %04X/%02X (CU %04X/%02X) with %d MB " + "and %d B/blk\n", + cdev->id.dev_type, + cdev->id.dev_model, + cdev->id.cu_type, + cdev->id.cu_model, + ((private->rdc_data.blk_bdsa * + (private->rdc_data.blk_size >> 9)) >> 11), + private->rdc_data.blk_size); return 0; } @@ -180,7 +184,7 @@ static int dasd_fba_do_analysis(struct dasd_block *block) private = (struct dasd_fba_private *) block->base->private; rc = dasd_check_blocksize(private->rdc_data.blk_size); if (rc) { - DEV_MESSAGE(KERN_INFO, block->base, "unknown blocksize %d", + DBF_DEV_EVENT(DBF_WARNING, block->base, "unknown blocksize %d", private->rdc_data.blk_size); return rc; } @@ -215,7 +219,7 @@ dasd_fba_erp_postaction(struct dasd_ccw_req * cqr) if (cqr->function == dasd_default_erp_action) return dasd_default_erp_postaction; - DEV_MESSAGE(KERN_WARNING, cqr->startdev, "unknown ERP action %p", + DBF_DEV_EVENT(DBF_WARNING, cqr->startdev, "unknown ERP action %p", cqr->function); return NULL; } @@ -233,9 +237,9 @@ static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device, } /* check for unsolicited interrupts */ - DEV_MESSAGE(KERN_DEBUG, device, "%s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "unsolicited interrupt received"); - device->discipline->dump_sense(device, NULL, irb); + device->discipline->dump_sense_dbf(device, NULL, irb, "unsolicited"); dasd_schedule_device_bh(device); return; }; @@ -437,6 +441,25 @@ dasd_fba_fill_info(struct dasd_device * device, } static void +dasd_fba_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req, + struct irb *irb, char *reason) +{ + int sl; + if (irb->esw.esw0.erw.cons) { + for (sl = 0; sl < 4; sl++) { + DBF_DEV_EVENT(DBF_EMERG, device, + "%s: %08x %08x %08x %08x", + reason, irb->ecw[8 * 0], irb->ecw[8 * 1], + irb->ecw[8 * 2], irb->ecw[8 * 3]); + } + } else { + DBF_DEV_EVENT(DBF_EMERG, device, "%s", + "SORRY - NO VALID SENSE AVAILABLE\n"); + } +} + + +static void dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, struct irb *irb) { @@ -446,7 +469,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, page = (char *) get_zeroed_page(GFP_ATOMIC); if (page == NULL) { - DEV_MESSAGE(KERN_ERR, device, " %s", + DBF_DEV_EVENT(DBF_WARNING, device, "%s", "No memory to dump sense data"); return; } @@ -476,8 +499,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, len += sprintf(page + len, KERN_ERR PRINTK_HEADER " SORRY - NO VALID SENSE AVAILABLE\n"); } - MESSAGE_LOG(KERN_ERR, "%s", - page + sizeof(KERN_ERR PRINTK_HEADER)); + printk(KERN_ERR "%s", page); /* dump the Channel Program */ /* print first CCWs (maximum 8) */ @@ -498,8 +520,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, len += sprintf(page + len, "\n"); act++; } - MESSAGE_LOG(KERN_ERR, "%s", - page + sizeof(KERN_ERR PRINTK_HEADER)); + printk(KERN_ERR "%s", page); /* print failing CCW area */ @@ -540,8 +561,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, act++; } if (len > 0) - MESSAGE_LOG(KERN_ERR, "%s", - page + sizeof(KERN_ERR PRINTK_HEADER)); + printk(KERN_ERR "%s", page); free_page((unsigned long) page); } @@ -576,6 +596,7 @@ static struct dasd_discipline dasd_fba_discipline = { .build_cp = dasd_fba_build_cp, .free_cp = dasd_fba_free_cp, .dump_sense = dasd_fba_dump_sense, + .dump_sense_dbf = dasd_fba_dump_sense_dbf, .fill_info = dasd_fba_fill_info, }; diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index e99d566b69cc..d3198303b93c 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -11,6 +11,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/interrupt.h> #include <linux/fs.h> #include <linux/blkpg.h> @@ -163,9 +165,8 @@ int dasd_gendisk_init(void) /* Register to static dasd major 94 */ rc = register_blkdev(DASD_MAJOR, "dasd"); if (rc != 0) { - MESSAGE(KERN_WARNING, - "Couldn't register successfully to " - "major no %d", DASD_MAJOR); + pr_warning("Registering the device driver with major number " + "%d failed\n", DASD_MAJOR); return rc; } return 0; diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 4a39084d9c95..c1e487f774c6 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -112,6 +112,9 @@ do { \ d_data); \ } while(0) +/* limit size for an errorstring */ +#define ERRORLENGTH 30 + /* definition of dbf debug levels */ #define DBF_EMERG 0 /* system is unusable */ #define DBF_ALERT 1 /* action must be taken immediately */ @@ -157,7 +160,8 @@ struct dasd_ccw_req { struct dasd_block *block; /* the originating block device */ struct dasd_device *memdev; /* the device used to allocate this */ struct dasd_device *startdev; /* device the request is started on */ - struct ccw1 *cpaddr; /* address of channel program */ + void *cpaddr; /* address of ccw or tcw */ + unsigned char cpmode; /* 0 = cmd mode, 1 = itcw */ char status; /* status of this request */ short retries; /* A retry counter */ unsigned long flags; /* flags of this request */ @@ -280,6 +284,8 @@ struct dasd_discipline { dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *); void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *, struct irb *); + void (*dump_sense_dbf) (struct dasd_device *, struct dasd_ccw_req *, + struct irb *, char *); void (*handle_unsolicited_interrupt) (struct dasd_device *, struct irb *); @@ -378,7 +384,7 @@ struct dasd_block { struct block_device *bdev; atomic_t open_count; - unsigned long blocks; /* size of volume in blocks */ + unsigned long long blocks; /* size of volume in blocks */ unsigned int bp_block; /* bytes per block */ unsigned int s2b_shift; /* log2 (bp_block/512) */ @@ -573,12 +579,14 @@ int dasd_generic_notify(struct ccw_device *, int); void dasd_generic_handle_state_change(struct dasd_device *); int dasd_generic_read_dev_chars(struct dasd_device *, char *, void **, int); +char *dasd_get_sense(struct irb *); /* externals in dasd_devmap.c */ extern int dasd_max_devindex; extern int dasd_probeonly; extern int dasd_autodetect; extern int dasd_nopav; +extern int dasd_nofcx; int dasd_devmap_init(void); void dasd_devmap_exit(void); @@ -623,6 +631,7 @@ struct dasd_ccw_req *dasd_alloc_erp_request(char *, int, int, struct dasd_device *); void dasd_free_erp_request(struct dasd_ccw_req *, struct dasd_device *); void dasd_log_sense(struct dasd_ccw_req *, struct irb *); +void dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb); /* externals in dasd_3990_erp.c */ struct dasd_ccw_req *dasd_3990_erp_action(struct dasd_ccw_req *); diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index b82d816d9ef7..4ce3f72ee1c1 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -9,6 +9,9 @@ * * i/o controls for the dasd driver. */ + +#define KMSG_COMPONENT "dasd" + #include <linux/interrupt.h> #include <linux/major.h> #include <linux/fs.h> @@ -94,7 +97,8 @@ static int dasd_ioctl_quiesce(struct dasd_block *block) if (!capable (CAP_SYS_ADMIN)) return -EACCES; - DEV_MESSAGE(KERN_DEBUG, base, "%s", "Quiesce IO on device"); + dev_info(&base->cdev->dev, "The DASD has been put in the quiesce " + "state\n"); spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags); base->stopped |= DASD_STOPPED_QUIESCE; spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags); @@ -103,7 +107,7 @@ static int dasd_ioctl_quiesce(struct dasd_block *block) /* - * Quiesce device. + * Resume device. */ static int dasd_ioctl_resume(struct dasd_block *block) { @@ -114,7 +118,8 @@ static int dasd_ioctl_resume(struct dasd_block *block) if (!capable (CAP_SYS_ADMIN)) return -EACCES; - DEV_MESSAGE(KERN_DEBUG, base, "%s", "resume IO on device"); + dev_info(&base->cdev->dev, "I/O operations have been resumed " + "on the DASD\n"); spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags); base->stopped &= ~DASD_STOPPED_QUIESCE; spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags); @@ -140,13 +145,13 @@ static int dasd_format(struct dasd_block *block, struct format_data_t *fdata) return -EPERM; if (base->state != DASD_STATE_BASIC) { - DEV_MESSAGE(KERN_WARNING, base, "%s", - "dasd_format: device is not disabled! "); + dev_warn(&base->cdev->dev, + "The DASD cannot be formatted while it is enabled\n"); return -EBUSY; } DBF_DEV_EVENT(DBF_NOTICE, base, - "formatting units %d to %d (%d B blocks) flags %d", + "formatting units %u to %u (%u B blocks) flags %u", fdata->start_unit, fdata->stop_unit, fdata->blksize, fdata->intensity); @@ -169,10 +174,9 @@ static int dasd_format(struct dasd_block *block, struct format_data_t *fdata) dasd_sfree_request(cqr, cqr->memdev); if (rc) { if (rc != -ERESTARTSYS) - DEV_MESSAGE(KERN_ERR, base, - " Formatting of unit %d failed " - "with rc = %d", - fdata->start_unit, rc); + dev_err(&base->cdev->dev, + "Formatting unit %d failed with " + "rc=%d\n", fdata->start_unit, rc); return rc; } fdata->start_unit++; @@ -199,8 +203,9 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp) if (copy_from_user(&fdata, argp, sizeof(struct format_data_t))) return -EFAULT; if (bdev != bdev->bd_contains) { - DEV_MESSAGE(KERN_WARNING, block->base, "%s", - "Cannot low-level format a partition"); + dev_warn(&block->base->cdev->dev, + "The specified DASD is a partition and cannot be " + "formatted\n"); return -EINVAL; } return dasd_format(block, &fdata); @@ -365,9 +370,9 @@ static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd, return ret; } -int -dasd_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) +static int +dasd_do_ioctl(struct block_device *bdev, fmode_t mode, + unsigned int cmd, unsigned long arg) { struct dasd_block *block = bdev->bd_disk->private_data; void __user *argp = (void __user *)arg; @@ -420,3 +425,14 @@ dasd_ioctl(struct block_device *bdev, fmode_t mode, return -EINVAL; } } + +int dasd_ioctl(struct block_device *bdev, fmode_t mode, + unsigned int cmd, unsigned long arg) +{ + int rc; + + lock_kernel(); + rc = dasd_do_ioctl(bdev, mode, cmd, arg); + unlock_kernel(); + return rc; +} diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index bf6fd348f20e..654daa3cdfda 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -11,6 +11,8 @@ * */ +#define KMSG_COMPONENT "dasd" + #include <linux/ctype.h> #include <linux/seq_file.h> #include <linux/vmalloc.h> @@ -112,7 +114,7 @@ dasd_devices_show(struct seq_file *m, void *v) seq_printf(m, "n/f "); else seq_printf(m, - "at blocksize: %d, %ld blocks, %ld MB", + "at blocksize: %d, %lld blocks, %lld MB", block->bp_block, block->blocks, ((block->bp_block >> 9) * block->blocks) >> 11); @@ -267,7 +269,7 @@ dasd_statistics_write(struct file *file, const char __user *user_buf, buffer = dasd_get_user_string(user_buf, user_len); if (IS_ERR(buffer)) return PTR_ERR(buffer); - MESSAGE_LOG(KERN_INFO, "/proc/dasd/statictics: '%s'", buffer); + DBF_EVENT(DBF_DEBUG, "/proc/dasd/statictics: '%s'\n", buffer); /* check for valid verbs */ for (str = buffer; isspace(*str); str++); @@ -277,33 +279,33 @@ dasd_statistics_write(struct file *file, const char __user *user_buf, if (strcmp(str, "on") == 0) { /* switch on statistics profiling */ dasd_profile_level = DASD_PROFILE_ON; - MESSAGE(KERN_INFO, "%s", "Statistics switched on"); + pr_info("The statistics feature has been switched " + "on\n"); } else if (strcmp(str, "off") == 0) { /* switch off and reset statistics profiling */ memset(&dasd_global_profile, 0, sizeof (struct dasd_profile_info_t)); dasd_profile_level = DASD_PROFILE_OFF; - MESSAGE(KERN_INFO, "%s", "Statistics switched off"); + pr_info("The statistics feature has been switched " + "off\n"); } else goto out_error; } else if (strncmp(str, "reset", 5) == 0) { /* reset the statistics */ memset(&dasd_global_profile, 0, sizeof (struct dasd_profile_info_t)); - MESSAGE(KERN_INFO, "%s", "Statistics reset"); + pr_info("The statistics have been reset\n"); } else goto out_error; kfree(buffer); return user_len; out_error: - MESSAGE(KERN_WARNING, "%s", - "/proc/dasd/statistics: only 'set on', 'set off' " - "and 'reset' are supported verbs"); + pr_warning("%s is not a supported value for /proc/dasd/statistics\n", + str); kfree(buffer); return -EINVAL; #else - MESSAGE(KERN_WARNING, "%s", - "/proc/dasd/statistics: is not activated in this kernel"); + pr_warning("/proc/dasd/statistics: is not activated in this kernel\n"); return user_len; #endif /* CONFIG_DASD_PROFILE */ } @@ -318,7 +320,6 @@ dasd_proc_init(void) dasd_proc_root_entry = proc_mkdir("dasd", NULL); if (!dasd_proc_root_entry) goto out_nodasd; - dasd_proc_root_entry->owner = THIS_MODULE; dasd_devices_entry = proc_create("devices", S_IFREG | S_IRUGO | S_IWUSR, dasd_proc_root_entry, @@ -332,7 +333,6 @@ dasd_proc_init(void) goto out_nostatistics; dasd_statistics_entry->read_proc = dasd_statistics_read; dasd_statistics_entry->write_proc = dasd_statistics_write; - dasd_statistics_entry->owner = THIS_MODULE; return 0; out_nostatistics: diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h index d0d565a05dfe..c07809c8016a 100644 --- a/drivers/s390/char/tape.h +++ b/drivers/s390/char/tape.h @@ -324,8 +324,6 @@ static inline void tape_proc_cleanup (void) {;} #endif /* a function for dumping device sense info */ -extern void tape_dump_sense(struct tape_device *, struct tape_request *, - struct irb *); extern void tape_dump_sense_dbf(struct tape_device *, struct tape_request *, struct irb *); diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index 22ca34361ed7..807ded5eb049 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -8,6 +8,8 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ +#define KMSG_COMPONENT "tape" + #include <linux/module.h> #include <linux/init.h> #include <linux/bio.h> @@ -18,8 +20,6 @@ #include "tape.h" #include "tape_std.h" -#define PRINTK_HEADER "TAPE_34XX: " - /* * Pointer to debug area. */ @@ -203,8 +203,7 @@ tape_34xx_unsolicited_irq(struct tape_device *device, struct irb *irb) tape_34xx_schedule_work(device, TO_MSEN); } else { DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id); - PRINT_WARN("Unsolicited IRQ (Device End) caught.\n"); - tape_dump_sense(device, NULL, irb); + tape_dump_sense_dbf(device, NULL, irb); } return TAPE_IO_SUCCESS; } @@ -226,9 +225,7 @@ tape_34xx_erp_read_opposite(struct tape_device *device, tape_std_read_backward(device, request); return tape_34xx_erp_retry(request); } - if (request->op != TO_RBA) - PRINT_ERR("read_opposite called with state:%s\n", - tape_op_verbose[request->op]); + /* * We tried to read forward and backward, but hat no * success -> failed. @@ -241,13 +238,9 @@ tape_34xx_erp_bug(struct tape_device *device, struct tape_request *request, struct irb *irb, int no) { if (request->op != TO_ASSIGN) { - PRINT_WARN("An unexpected condition #%d was caught in " - "tape error recovery.\n", no); - PRINT_WARN("Please report this incident.\n"); - if (request) - PRINT_WARN("Operation of tape:%s\n", - tape_op_verbose[request->op]); - tape_dump_sense(device, request, irb); + dev_err(&device->cdev->dev, "An unexpected condition %d " + "occurred in tape error recovery\n", no); + tape_dump_sense_dbf(device, request, irb); } return tape_34xx_erp_failed(request, -EIO); } @@ -261,9 +254,8 @@ tape_34xx_erp_overrun(struct tape_device *device, struct tape_request *request, struct irb *irb) { if (irb->ecw[3] == 0x40) { - PRINT_WARN ("Data overrun error between control-unit " - "and drive. Use a faster channel connection, " - "if possible! \n"); + dev_warn (&device->cdev->dev, "A data overrun occurred between" + " the control unit and tape unit\n"); return tape_34xx_erp_failed(request, -EIO); } return tape_34xx_erp_bug(device, request, irb, -1); @@ -280,7 +272,8 @@ tape_34xx_erp_sequence(struct tape_device *device, /* * cu detected incorrect block-id sequence on tape. */ - PRINT_WARN("Illegal block-id sequence found!\n"); + dev_warn (&device->cdev->dev, "The block ID sequence on the " + "tape is incorrect\n"); return tape_34xx_erp_failed(request, -EIO); } /* @@ -393,8 +386,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, /* Writing at physical end of volume */ return tape_34xx_erp_failed(request, -ENOSPC); default: - PRINT_ERR("Invalid op in %s:%i\n", - __func__, __LINE__); return tape_34xx_erp_failed(request, 0); } } @@ -420,7 +411,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, irb, -4); /* data check is permanent, CU recovery has failed */ - PRINT_WARN("Permanent read error\n"); + dev_warn (&device->cdev->dev, "A read error occurred " + "that cannot be recovered\n"); return tape_34xx_erp_failed(request, -EIO); case 0x25: // a write data check occurred @@ -433,22 +425,26 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, irb, -5); // data check is permanent, cu-recovery has failed - PRINT_WARN("Permanent write error\n"); + dev_warn (&device->cdev->dev, "A write error on the " + "tape cannot be recovered\n"); return tape_34xx_erp_failed(request, -EIO); case 0x26: /* Data Check (read opposite) occurred. */ return tape_34xx_erp_read_opposite(device, request); case 0x28: /* ID-Mark at tape start couldn't be written */ - PRINT_WARN("ID-Mark could not be written.\n"); + dev_warn (&device->cdev->dev, "Writing the ID-mark " + "failed\n"); return tape_34xx_erp_failed(request, -EIO); case 0x31: /* Tape void. Tried to read beyond end of device. */ - PRINT_WARN("Read beyond end of recorded area.\n"); + dev_warn (&device->cdev->dev, "Reading the tape beyond" + " the end of the recorded area failed\n"); return tape_34xx_erp_failed(request, -ENOSPC); case 0x41: /* Record sequence error. */ - PRINT_WARN("Invalid block-id sequence found.\n"); + dev_warn (&device->cdev->dev, "The tape contains an " + "incorrect block ID sequence\n"); return tape_34xx_erp_failed(request, -EIO); default: /* all data checks for 3480 should result in one of @@ -470,16 +466,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, switch (sense[3]) { case 0x00: /* Unit check with erpa code 0. Report and ignore. */ - PRINT_WARN("Non-error sense was found. " - "Unit-check will be ignored.\n"); return TAPE_IO_SUCCESS; case 0x21: /* * Data streaming not operational. CU will switch to * interlock mode. Reissue the command. */ - PRINT_WARN("Data streaming not operational. " - "Switching to interlock-mode.\n"); return tape_34xx_erp_retry(request); case 0x22: /* @@ -487,11 +479,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * error on the lower interface, internal path not usable, * or error during cartridge load. */ - PRINT_WARN("A path equipment check occurred. One of the " - "following conditions occurred:\n"); - PRINT_WARN("drive adapter error, buffer error on the lower " - "interface, internal path not usable, error " - "during cartridge load.\n"); + dev_warn (&device->cdev->dev, "A path equipment check occurred" + " for the tape device\n"); return tape_34xx_erp_failed(request, -EIO); case 0x24: /* @@ -514,7 +503,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * but the hardware isn't capable to do idrc, or a perform * subsystem func is issued and the CU is not on-line. */ - PRINT_WARN ("Function incompatible. Try to switch off idrc\n"); return tape_34xx_erp_failed(request, -EIO); case 0x2a: /* @@ -552,23 +540,26 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * reading the format id mark or that that format specified * is not supported by the drive. */ - PRINT_WARN("Drive not capable processing the tape format!\n"); + dev_warn (&device->cdev->dev, "The tape unit cannot process " + "the tape format\n"); return tape_34xx_erp_failed(request, -EMEDIUMTYPE); case 0x30: /* The medium is write protected. */ - PRINT_WARN("Medium is write protected!\n"); + dev_warn (&device->cdev->dev, "The tape medium is write-" + "protected\n"); return tape_34xx_erp_failed(request, -EACCES); case 0x32: // Tension loss. We cannot recover this, it's an I/O error. - PRINT_WARN("The drive lost tape tension.\n"); + dev_warn (&device->cdev->dev, "The tape does not have the " + "required tape tension\n"); return tape_34xx_erp_failed(request, -EIO); case 0x33: /* * Load Failure. The cartridge was not inserted correctly or * the tape is not threaded correctly. */ - PRINT_WARN("Cartridge load failure. Reload the cartridge " - "and try again.\n"); + dev_warn (&device->cdev->dev, "The tape unit failed to load" + " the cartridge\n"); tape_34xx_delete_sbid_from(device, 0); return tape_34xx_erp_failed(request, -EIO); case 0x34: @@ -576,8 +567,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * Unload failure. The drive cannot maintain tape tension * and control tape movement during an unload operation. */ - PRINT_WARN("Failure during cartridge unload. " - "Please try manually.\n"); + dev_warn (&device->cdev->dev, "Automatic unloading of the tape" + " cartridge failed\n"); if (request->op == TO_RUN) return tape_34xx_erp_failed(request, -EIO); return tape_34xx_erp_bug(device, request, irb, sense[3]); @@ -589,8 +580,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * - the cartridge loader does not respond correctly * - a failure occurs during an index, load, or unload cycle */ - PRINT_WARN("Equipment check! Please check the drive and " - "the cartridge loader.\n"); + dev_warn (&device->cdev->dev, "An equipment check has occurred" + " on the tape unit\n"); return tape_34xx_erp_failed(request, -EIO); case 0x36: if (device->cdev->id.driver_info == tape_3490) @@ -603,7 +594,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * Tape length error. The tape is shorter than reported in * the beginning-of-tape data. */ - PRINT_WARN("Tape length error.\n"); + dev_warn (&device->cdev->dev, "The tape information states an" + " incorrect length\n"); return tape_34xx_erp_failed(request, -EIO); case 0x38: /* @@ -620,12 +612,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, return tape_34xx_erp_failed(request, -EIO); case 0x3a: /* Drive switched to not ready. */ - PRINT_WARN("Drive not ready. Turn the ready/not ready switch " - "to ready position and try again.\n"); + dev_warn (&device->cdev->dev, "The tape unit is not ready\n"); return tape_34xx_erp_failed(request, -EIO); case 0x3b: /* Manual rewind or unload. This causes an I/O error. */ - PRINT_WARN("Medium was rewound or unloaded manually.\n"); + dev_warn (&device->cdev->dev, "The tape medium has been " + "rewound or unloaded manually\n"); tape_34xx_delete_sbid_from(device, 0); return tape_34xx_erp_failed(request, -EIO); case 0x42: @@ -633,7 +625,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * Degraded mode. A condition that can cause degraded * performance is detected. */ - PRINT_WARN("Subsystem is running in degraded mode.\n"); + dev_warn (&device->cdev->dev, "The tape subsystem is running " + "in degraded mode\n"); return tape_34xx_erp_retry(request); case 0x43: /* Drive not ready. */ @@ -652,7 +645,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, break; } } - PRINT_WARN("The drive is not ready.\n"); return tape_34xx_erp_failed(request, -ENOMEDIUM); case 0x44: /* Locate Block unsuccessful. */ @@ -663,7 +655,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, return tape_34xx_erp_failed(request, -EIO); case 0x45: /* The drive is assigned to a different channel path. */ - PRINT_WARN("The drive is assigned elsewhere.\n"); + dev_warn (&device->cdev->dev, "The tape unit is already " + "assigned\n"); return tape_34xx_erp_failed(request, -EIO); case 0x46: /* @@ -671,11 +664,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * the power supply may be switched off or * the drive address may not be set correctly. */ - PRINT_WARN("The drive is not on-line."); + dev_warn (&device->cdev->dev, "The tape unit is not online\n"); return tape_34xx_erp_failed(request, -EIO); case 0x47: /* Volume fenced. CU reports volume integrity is lost. */ - PRINT_WARN("Volume fenced. The volume integrity is lost.\n"); + dev_warn (&device->cdev->dev, "The control unit has fenced " + "access to the tape volume\n"); tape_34xx_delete_sbid_from(device, 0); return tape_34xx_erp_failed(request, -EIO); case 0x48: @@ -683,20 +677,21 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, return tape_34xx_erp_retry(request); case 0x49: /* Bus out check. A parity check error on the bus was found. */ - PRINT_WARN("Bus out check. A data transfer over the bus " - "has been corrupted.\n"); + dev_warn (&device->cdev->dev, "A parity error occurred on the " + "tape bus\n"); return tape_34xx_erp_failed(request, -EIO); case 0x4a: /* Control unit erp failed. */ - PRINT_WARN("The control unit I/O error recovery failed.\n"); + dev_warn (&device->cdev->dev, "I/O error recovery failed on " + "the tape control unit\n"); return tape_34xx_erp_failed(request, -EIO); case 0x4b: /* * CU and drive incompatible. The drive requests micro-program * patches, which are not available on the CU. */ - PRINT_WARN("The drive needs microprogram patches from the " - "control unit, which are not available.\n"); + dev_warn (&device->cdev->dev, "The tape unit requires a " + "firmware update\n"); return tape_34xx_erp_failed(request, -EIO); case 0x4c: /* @@ -721,8 +716,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * the block to be written is larger than allowed for * buffered mode. */ - PRINT_WARN("Maximum block size for buffered " - "mode exceeded.\n"); + dev_warn (&device->cdev->dev, "The maximum block size" + " for buffered mode is exceeded\n"); return tape_34xx_erp_failed(request, -ENOBUFS); } /* This erpa is reserved for 3480. */ @@ -759,22 +754,20 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, return tape_34xx_erp_retry(request); case 0x55: /* Channel interface recovery (permanent). */ - PRINT_WARN("A permanent channel interface error occurred.\n"); + dev_warn (&device->cdev->dev, "A channel interface error cannot be" + " recovered\n"); return tape_34xx_erp_failed(request, -EIO); case 0x56: /* Channel protocol error. */ - PRINT_WARN("A channel protocol error occurred.\n"); + dev_warn (&device->cdev->dev, "A channel protocol error " + "occurred\n"); return tape_34xx_erp_failed(request, -EIO); case 0x57: if (device->cdev->id.driver_info == tape_3480) { /* Attention intercept. */ - PRINT_WARN("An attention intercept occurred, " - "which will be recovered.\n"); return tape_34xx_erp_retry(request); } else { /* Global status intercept. */ - PRINT_WARN("An global status intercept was received, " - "which will be recovered.\n"); return tape_34xx_erp_retry(request); } case 0x5a: @@ -782,42 +775,31 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request, * Tape length incompatible. The tape inserted is too long, * which could cause damage to the tape or the drive. */ - PRINT_WARN("Tape Length Incompatible\n"); - PRINT_WARN("Tape length exceeds IBM enhanced capacity " - "cartdridge length or a medium\n"); - PRINT_WARN("with EC-CST identification mark has been mounted " - "in a device that writes\n"); - PRINT_WARN("3480 or 3480 XF format.\n"); + dev_warn (&device->cdev->dev, "The tape unit does not support " + "the tape length\n"); return tape_34xx_erp_failed(request, -EIO); case 0x5b: /* Format 3480 XF incompatible */ if (sense[1] & SENSE_BEGINNING_OF_TAPE) /* The tape will get overwritten. */ return tape_34xx_erp_retry(request); - PRINT_WARN("Format 3480 XF Incompatible\n"); - PRINT_WARN("Medium has been created in 3480 format. " - "To change the format writes\n"); - PRINT_WARN("must be issued at BOT.\n"); + dev_warn (&device->cdev->dev, "The tape unit does not support" + " format 3480 XF\n"); return tape_34xx_erp_failed(request, -EIO); case 0x5c: /* Format 3480-2 XF incompatible */ - PRINT_WARN("Format 3480-2 XF Incompatible\n"); - PRINT_WARN("Device can only read 3480 or 3480 XF format.\n"); + dev_warn (&device->cdev->dev, "The tape unit does not support tape " + "format 3480-2 XF\n"); return tape_34xx_erp_failed(request, -EIO); case 0x5d: /* Tape length violation. */ - PRINT_WARN("Tape Length Violation\n"); - PRINT_WARN("The mounted tape exceeds IBM Enhanced Capacity " - "Cartdridge System Tape length.\n"); - PRINT_WARN("This may cause damage to the drive or tape when " - "processing to the EOV\n"); + dev_warn (&device->cdev->dev, "The tape unit does not support" + " the current tape length\n"); return tape_34xx_erp_failed(request, -EMEDIUMTYPE); case 0x5e: /* Compaction algorithm incompatible. */ - PRINT_WARN("Compaction Algorithm Incompatible\n"); - PRINT_WARN("The volume is recorded using an incompatible " - "compaction algorithm,\n"); - PRINT_WARN("which is not supported by the device.\n"); + dev_warn (&device->cdev->dev, "The tape unit does not support" + " the compaction algorithm\n"); return tape_34xx_erp_failed(request, -EMEDIUMTYPE); /* The following erpas should have been covered earlier. */ @@ -848,7 +830,6 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request, (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) && (request->op == TO_WRI)) { /* Write at end of volume */ - PRINT_INFO("End of volume\n"); /* XXX */ return tape_34xx_erp_failed(request, -ENOSPC); } @@ -869,9 +850,7 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request, } DBF_EVENT(6, "xunknownirq\n"); - PRINT_ERR("Unexpected interrupt.\n"); - PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]); - tape_dump_sense(device, request, irb); + tape_dump_sense_dbf(device, request, irb); return TAPE_IO_STOP; } diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index 71605a179d65..fc1d91294143 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -8,12 +8,15 @@ * Martin Schwidefsky <schwidefsky@de.ibm.com> */ +#define KMSG_COMPONENT "tape" + #include <linux/module.h> #include <linux/init.h> #include <linux/bio.h> #include <asm/ebcdic.h> #define TAPE_DBF_AREA tape_3590_dbf +#define BUFSIZE 512 /* size of buffers for dynamic generated messages */ #include "tape.h" #include "tape_std.h" @@ -36,7 +39,7 @@ EXPORT_SYMBOL(TAPE_DBF_AREA); * - Read Alternate: implemented *******************************************************************/ -#define PRINTK_HEADER "TAPE_3590: " +#define KMSG_COMPONENT "tape" static const char *tape_3590_msg[TAPE_3590_MAX_MSG] = { [0x00] = "", @@ -661,8 +664,7 @@ tape_3590_bread(struct tape_device *device, struct request *req) ccw++; dst += TAPEBLOCK_HSEC_SIZE; } - if (off > bv->bv_len) - BUG(); + BUG_ON(off > bv->bv_len); } ccw = tape_ccw_end(ccw, NOP, 0, NULL); DBF_EVENT(6, "xBREDccwg\n"); @@ -726,7 +728,7 @@ static void tape_3590_med_state_set(struct tape_device *device, } c_info->medium_status |= TAPE390_MEDIUM_LOADED_MASK; if (sense->flags & MSENSE_CRYPT_MASK) { - PRINT_INFO("Medium is encrypted (%04x)\n", sense->flags); + DBF_EVENT(6, "Medium is encrypted (%04x)\n", sense->flags); c_info->medium_status |= TAPE390_MEDIUM_ENCRYPTED_MASK; } else { DBF_EVENT(6, "Medium is not encrypted %04x\n", sense->flags); @@ -847,8 +849,7 @@ tape_3590_unsolicited_irq(struct tape_device *device, struct irb *irb) tape_3590_schedule_work(device, TO_READ_ATTMSG); } else { DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id); - PRINT_WARN("Unsolicited IRQ (Device End) caught.\n"); - tape_dump_sense(device, NULL, irb); + tape_dump_sense_dbf(device, NULL, irb); } /* check medium state */ tape_3590_schedule_work(device, TO_MSEN); @@ -876,8 +877,6 @@ tape_3590_erp_basic(struct tape_device *device, struct tape_request *request, case SENSE_BRA_DRE: return tape_3590_erp_failed(device, request, irb, rc); default: - PRINT_ERR("Unknown BRA %x - This should not happen!\n", - sense->bra); BUG(); return TAPE_IO_STOP; } @@ -910,7 +909,8 @@ tape_3590_erp_swap(struct tape_device *device, struct tape_request *request, * should proceed with the new tape... this * should probably be done in user space! */ - PRINT_WARN("(%s): Swap Tape Device!\n", dev_name(&device->cdev->dev)); + dev_warn (&device->cdev->dev, "The tape medium must be loaded into a " + "different tape unit\n"); return tape_3590_erp_basic(device, request, irb, -EIO); } @@ -985,8 +985,6 @@ tape_3590_erp_read_opposite(struct tape_device *device, return tape_3590_erp_failed(device, request, irb, -EIO); break; default: - PRINT_WARN("read_opposite_recovery_called_with_op: %s\n", - tape_op_verbose[request->op]); return tape_3590_erp_failed(device, request, irb, -EIO); } } @@ -998,50 +996,61 @@ static void tape_3590_print_mim_msg_f0(struct tape_device *device, struct irb *irb) { struct tape_3590_sense *sense; + char *exception, *service; + + exception = kmalloc(BUFSIZE, GFP_ATOMIC); + service = kmalloc(BUFSIZE, GFP_ATOMIC); + + if (!exception || !service) + goto out_nomem; sense = (struct tape_3590_sense *) irb->ecw; /* Exception Message */ switch (sense->fmt.f70.emc) { case 0x02: - PRINT_WARN("(%s): Data degraded\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "Data degraded"); break; case 0x03: - PRINT_WARN("(%s): Data degraded in partion %i\n", - dev_name(&device->cdev->dev), sense->fmt.f70.mp); + snprintf(exception, BUFSIZE, "Data degraded in partion %i", + sense->fmt.f70.mp); break; case 0x04: - PRINT_WARN("(%s): Medium degraded\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "Medium degraded"); break; case 0x05: - PRINT_WARN("(%s): Medium degraded in partition %i\n", - dev_name(&device->cdev->dev), sense->fmt.f70.mp); + snprintf(exception, BUFSIZE, "Medium degraded in partition %i", + sense->fmt.f70.mp); break; case 0x06: - PRINT_WARN("(%s): Block 0 Error\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "Block 0 Error"); break; case 0x07: - PRINT_WARN("(%s): Medium Exception 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f70.md); + snprintf(exception, BUFSIZE, "Medium Exception 0x%02x", + sense->fmt.f70.md); break; default: - PRINT_WARN("(%s): MIM ExMsg: 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f70.emc); + snprintf(exception, BUFSIZE, "0x%02x", + sense->fmt.f70.emc); break; } /* Service Message */ switch (sense->fmt.f70.smc) { case 0x02: - PRINT_WARN("(%s): Reference Media maintenance procedure %i\n", - dev_name(&device->cdev->dev), sense->fmt.f70.md); + snprintf(service, BUFSIZE, "Reference Media maintenance " + "procedure %i", sense->fmt.f70.md); break; default: - PRINT_WARN("(%s): MIM ServiceMsg: 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f70.smc); + snprintf(service, BUFSIZE, "0x%02x", + sense->fmt.f70.smc); break; } + + dev_warn (&device->cdev->dev, "Tape media information: exception %s, " + "service %s\n", exception, service); + +out_nomem: + kfree(exception); + kfree(service); } /* @@ -1051,108 +1060,108 @@ static void tape_3590_print_io_sim_msg_f1(struct tape_device *device, struct irb *irb) { struct tape_3590_sense *sense; + char *exception, *service; + + exception = kmalloc(BUFSIZE, GFP_ATOMIC); + service = kmalloc(BUFSIZE, GFP_ATOMIC); + + if (!exception || !service) + goto out_nomem; sense = (struct tape_3590_sense *) irb->ecw; /* Exception Message */ switch (sense->fmt.f71.emc) { case 0x01: - PRINT_WARN("(%s): Effect of failure is unknown\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "Effect of failure is unknown"); break; case 0x02: - PRINT_WARN("(%s): CU Exception - no performance impact\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "CU Exception - no performance " + "impact"); break; case 0x03: - PRINT_WARN("(%s): CU Exception on channel interface 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "CU Exception on channel " + "interface 0x%02x", sense->fmt.f71.md[0]); break; case 0x04: - PRINT_WARN("(%s): CU Exception on device path 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "CU Exception on device path " + "0x%02x", sense->fmt.f71.md[0]); break; case 0x05: - PRINT_WARN("(%s): CU Exception on library path 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "CU Exception on library path " + "0x%02x", sense->fmt.f71.md[0]); break; case 0x06: - PRINT_WARN("(%s): CU Exception on node 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "CU Exception on node 0x%02x", + sense->fmt.f71.md[0]); break; case 0x07: - PRINT_WARN("(%s): CU Exception on partition 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "CU Exception on partition " + "0x%02x", sense->fmt.f71.md[0]); break; default: - PRINT_WARN("(%s): SIM ExMsg: 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.emc); + snprintf(exception, BUFSIZE, "0x%02x", + sense->fmt.f71.emc); } /* Service Message */ switch (sense->fmt.f71.smc) { case 0x01: - PRINT_WARN("(%s): Repair impact is unknown\n", - dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Repair impact is unknown"); break; case 0x02: - PRINT_WARN("(%s): Repair will not impact cu performance\n", - dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Repair will not impact cu " + "performance"); break; case 0x03: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable node " - "0x%x on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable node " + "0x%x on CU", sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable nodes " - "(0x%x-0x%x) on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable " + "nodes (0x%x-0x%x) on CU", sense->fmt.f71.md[1], + sense->fmt.f71.md[2]); break; case 0x04: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable cannel path " - "0x%x on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable " + "channel path 0x%x on CU", + sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable cannel paths " - "(0x%x-0x%x) on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable cannel" + " paths (0x%x-0x%x) on CU", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x05: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable device path " - "0x%x on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable device" + " path 0x%x on CU", sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable device paths " - "(0x%x-0x%x) on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable device" + " paths (0x%x-0x%x) on CU", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x06: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable library path " - "0x%x on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable " + "library path 0x%x on CU", + sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable library paths " - "(0x%x-0x%x) on CU\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable " + "library paths (0x%x-0x%x) on CU", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x07: - PRINT_WARN("(%s): Repair will disable access to CU\n", - dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Repair will disable access to CU"); break; default: - PRINT_WARN("(%s): SIM ServiceMsg: 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.smc); + snprintf(service, BUFSIZE, "0x%02x", + sense->fmt.f71.smc); } + + dev_warn (&device->cdev->dev, "I/O subsystem information: exception" + " %s, service %s\n", exception, service); +out_nomem: + kfree(exception); + kfree(service); } /* @@ -1162,111 +1171,109 @@ static void tape_3590_print_dev_sim_msg_f2(struct tape_device *device, struct irb *irb) { struct tape_3590_sense *sense; + char *exception, *service; + + exception = kmalloc(BUFSIZE, GFP_ATOMIC); + service = kmalloc(BUFSIZE, GFP_ATOMIC); + + if (!exception || !service) + goto out_nomem; sense = (struct tape_3590_sense *) irb->ecw; /* Exception Message */ switch (sense->fmt.f71.emc) { case 0x01: - PRINT_WARN("(%s): Effect of failure is unknown\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "Effect of failure is unknown"); break; case 0x02: - PRINT_WARN("(%s): DV Exception - no performance impact\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "DV Exception - no performance" + " impact"); break; case 0x03: - PRINT_WARN("(%s): DV Exception on channel interface 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "DV Exception on channel " + "interface 0x%02x", sense->fmt.f71.md[0]); break; case 0x04: - PRINT_WARN("(%s): DV Exception on loader 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "DV Exception on loader 0x%02x", + sense->fmt.f71.md[0]); break; case 0x05: - PRINT_WARN("(%s): DV Exception on message display 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); + snprintf(exception, BUFSIZE, "DV Exception on message display" + " 0x%02x", sense->fmt.f71.md[0]); break; case 0x06: - PRINT_WARN("(%s): DV Exception in tape path\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "DV Exception in tape path"); break; case 0x07: - PRINT_WARN("(%s): DV Exception in drive\n", - dev_name(&device->cdev->dev)); + snprintf(exception, BUFSIZE, "DV Exception in drive"); break; default: - PRINT_WARN("(%s): DSIM ExMsg: 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.emc); + snprintf(exception, BUFSIZE, "0x%02x", + sense->fmt.f71.emc); } /* Service Message */ switch (sense->fmt.f71.smc) { case 0x01: - PRINT_WARN("(%s): Repair impact is unknown\n", - dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Repair impact is unknown"); break; case 0x02: - PRINT_WARN("(%s): Repair will not impact device performance\n", - dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Repair will not impact device " + "performance"); break; case 0x03: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable channel path " - "0x%x on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable " + "channel path 0x%x on DV", + sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable channel path " - "(0x%x-0x%x) on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable " + "channel path (0x%x-0x%x) on DV", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x04: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable interface 0x%x " - "on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable " + "interface 0x%x on DV", sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable interfaces " - "(0x%x-0x%x) on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable " + "interfaces (0x%x-0x%x) on DV", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x05: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable loader 0x%x " - "on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable loader" + " 0x%x on DV", sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable loader " - "(0x%x-0x%x) on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable loader" + " (0x%x-0x%x) on DV", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x07: - PRINT_WARN("(%s): Repair will disable access to DV\n", - dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Repair will disable access to DV"); break; case 0x08: if (sense->fmt.f71.mdf == 0) - PRINT_WARN("(%s): Repair will disable message " - "display 0x%x on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1]); + snprintf(service, BUFSIZE, "Repair will disable " + "message display 0x%x on DV", + sense->fmt.f71.md[1]); else - PRINT_WARN("(%s): Repair will disable message " - "displays (0x%x-0x%x) on DV\n", - dev_name(&device->cdev->dev), - sense->fmt.f71.md[1], sense->fmt.f71.md[2]); + snprintf(service, BUFSIZE, "Repair will disable " + "message displays (0x%x-0x%x) on DV", + sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x09: - PRINT_WARN("(%s): Clean DV\n", dev_name(&device->cdev->dev)); + snprintf(service, BUFSIZE, "Clean DV"); break; default: - PRINT_WARN("(%s): DSIM ServiceMsg: 0x%02x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.smc); + snprintf(service, BUFSIZE, "0x%02x", + sense->fmt.f71.smc); } + + dev_warn (&device->cdev->dev, "Device subsystem information: exception" + " %s, service %s\n", exception, service); +out_nomem: + kfree(exception); + kfree(service); } /* @@ -1282,46 +1289,44 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb) return; if ((sense->mc > 0) && (sense->mc < TAPE_3590_MAX_MSG)) { if (tape_3590_msg[sense->mc] != NULL) - PRINT_WARN("(%s): %s\n", dev_name(&device->cdev->dev), - tape_3590_msg[sense->mc]); - else { - PRINT_WARN("(%s): Message Code 0x%x\n", - dev_name(&device->cdev->dev), sense->mc); - } + dev_warn (&device->cdev->dev, "The tape unit has " + "issued sense message %s\n", + tape_3590_msg[sense->mc]); + else + dev_warn (&device->cdev->dev, "The tape unit has " + "issued an unknown sense message code 0x%x\n", + sense->mc); return; } if (sense->mc == 0xf0) { /* Standard Media Information Message */ - PRINT_WARN("(%s): MIM SEV=%i, MC=%02x, ES=%x/%x, " - "RC=%02x-%04x-%02x\n", dev_name(&device->cdev->dev), - sense->fmt.f70.sev, sense->mc, - sense->fmt.f70.emc, sense->fmt.f70.smc, - sense->fmt.f70.refcode, sense->fmt.f70.mid, - sense->fmt.f70.fid); + dev_warn (&device->cdev->dev, "MIM SEV=%i, MC=%02x, ES=%x/%x, " + "RC=%02x-%04x-%02x\n", sense->fmt.f70.sev, sense->mc, + sense->fmt.f70.emc, sense->fmt.f70.smc, + sense->fmt.f70.refcode, sense->fmt.f70.mid, + sense->fmt.f70.fid); tape_3590_print_mim_msg_f0(device, irb); return; } if (sense->mc == 0xf1) { /* Standard I/O Subsystem Service Information Message */ - PRINT_WARN("(%s): IOSIM SEV=%i, DEVTYPE=3590/%02x, " - "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.sev, - device->cdev->id.dev_model, - sense->mc, sense->fmt.f71.emc, - sense->fmt.f71.smc, sense->fmt.f71.refcode1, - sense->fmt.f71.refcode2, sense->fmt.f71.refcode3); + dev_warn (&device->cdev->dev, "IOSIM SEV=%i, DEVTYPE=3590/%02x," + " MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n", + sense->fmt.f71.sev, device->cdev->id.dev_model, + sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc, + sense->fmt.f71.refcode1, sense->fmt.f71.refcode2, + sense->fmt.f71.refcode3); tape_3590_print_io_sim_msg_f1(device, irb); return; } if (sense->mc == 0xf2) { /* Standard Device Service Information Message */ - PRINT_WARN("(%s): DEVSIM SEV=%i, DEVTYPE=3590/%02x, " - "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n", - dev_name(&device->cdev->dev), sense->fmt.f71.sev, - device->cdev->id.dev_model, - sense->mc, sense->fmt.f71.emc, - sense->fmt.f71.smc, sense->fmt.f71.refcode1, - sense->fmt.f71.refcode2, sense->fmt.f71.refcode3); + dev_warn (&device->cdev->dev, "DEVSIM SEV=%i, DEVTYPE=3590/%02x" + ", MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n", + sense->fmt.f71.sev, device->cdev->id.dev_model, + sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc, + sense->fmt.f71.refcode1, sense->fmt.f71.refcode2, + sense->fmt.f71.refcode3); tape_3590_print_dev_sim_msg_f2(device, irb); return; } @@ -1329,8 +1334,8 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb) /* Standard Library Service Information Message */ return; } - PRINT_WARN("(%s): Device Message(%x)\n", - dev_name(&device->cdev->dev), sense->mc); + dev_warn (&device->cdev->dev, "The tape unit has issued an unknown " + "sense message code %x\n", sense->mc); } static int tape_3590_crypt_error(struct tape_device *device, @@ -1355,9 +1360,8 @@ static int tape_3590_crypt_error(struct tape_device *device, /* No connection to EKM */ return tape_3590_erp_basic(device, request, irb, -ENOTCONN); - PRINT_ERR("(%s): Unable to get encryption key from EKM\n", bus_id); - PRINT_ERR("(%s): CU=%02X DRIVE=%06X EKM=%02X:%04X\n", bus_id, cu_rc, - drv_rc, ekm_rc1, ekm_rc2); + dev_err (&device->cdev->dev, "The tape unit failed to obtain the " + "encryption key from EKM\n"); return tape_3590_erp_basic(device, request, irb, -ENOKEY); } @@ -1443,8 +1447,6 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request, * print additional msg since default msg * "device intervention" is not very meaningfull */ - PRINT_WARN("(%s): Tape operation when medium not loaded\n", - dev_name(&device->cdev->dev)); tape_med_state_set(device, MS_UNLOADED); tape_3590_schedule_work(device, TO_CRYPT_OFF); return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM); @@ -1490,19 +1492,13 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request, return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM); case 0x6020: - PRINT_WARN("(%s): Cartridge of wrong type ?\n", - dev_name(&device->cdev->dev)); return tape_3590_erp_basic(device, request, irb, -EMEDIUMTYPE); case 0x8011: - PRINT_WARN("(%s): Another host has reserved the tape device\n", - dev_name(&device->cdev->dev)); return tape_3590_erp_basic(device, request, irb, -EPERM); case 0x8013: - PRINT_WARN("(%s): Another host has privileged access to the " - "tape device\n", dev_name(&device->cdev->dev)); - PRINT_WARN("(%s): To solve the problem unload the current " - "cartridge!\n", dev_name(&device->cdev->dev)); + dev_warn (&device->cdev->dev, "A different host has privileged" + " access to the tape unit\n"); return tape_3590_erp_basic(device, request, irb, -EPERM); default: return tape_3590_erp_basic(device, request, irb, -EIO); @@ -1552,9 +1548,7 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request, } DBF_EVENT(6, "xunknownirq\n"); - PRINT_ERR("Unexpected interrupt.\n"); - PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]); - tape_dump_sense(device, request, irb); + tape_dump_sense_dbf(device, request, irb); return TAPE_IO_STOP; } @@ -1609,7 +1603,6 @@ tape_3590_setup_device(struct tape_device *device) if (rc) goto fail_rdc_data; if (rdc_data->data[31] == 0x13) { - PRINT_INFO("Device has crypto support\n"); data->crypt_info.capability |= TAPE390_CRYPT_SUPPORTED_MASK; tape_3592_disable_crypt(device); } else { diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index ae18baf59f06..f32e89e7c4f2 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -10,6 +10,8 @@ * Stefan Bader <shbader@de.ibm.com> */ +#define KMSG_COMPONENT "tape" + #include <linux/fs.h> #include <linux/module.h> #include <linux/blkdev.h> @@ -23,8 +25,6 @@ #include "tape.h" -#define PRINTK_HEADER "TAPE_BLOCK: " - #define TAPEBLOCK_MAX_SEC 100 #define TAPEBLOCK_MIN_REQUEUE 3 @@ -279,8 +279,6 @@ tapeblock_cleanup_device(struct tape_device *device) tape_put_device(device); if (!device->blk_data.disk) { - PRINT_ERR("(%s): No gendisk to clean up!\n", - dev_name(&device->cdev->dev)); goto cleanup_queue; } @@ -314,7 +312,8 @@ tapeblock_revalidate_disk(struct gendisk *disk) if (!device->blk_data.medium_changed) return 0; - PRINT_INFO("Detecting media size...\n"); + dev_info(&device->cdev->dev, "Determining the size of the recorded " + "area...\n"); rc = tape_mtop(device, MTFSFM, 1); if (rc) return rc; @@ -341,7 +340,8 @@ tapeblock_revalidate_disk(struct gendisk *disk) device->bof = rc; nr_of_blks -= rc; - PRINT_INFO("Found %i blocks on media\n", nr_of_blks); + dev_info(&device->cdev->dev, "The size of the recorded area is %i " + "blocks\n", nr_of_blks); set_capacity(device->blk_data.disk, nr_of_blks*(TAPEBLOCK_HSEC_SIZE/512)); @@ -376,8 +376,8 @@ tapeblock_open(struct block_device *bdev, fmode_t mode) if (device->required_tapemarks) { DBF_EVENT(2, "TBLOCK: missing tapemarks\n"); - PRINT_ERR("TBLOCK: Refusing to open tape with missing" - " end of file marks.\n"); + dev_warn(&device->cdev->dev, "Opening the tape failed because" + " of missing end-of-file marks\n"); rc = -EPERM; goto put_device; } @@ -452,7 +452,6 @@ tapeblock_ioctl( rc = -EINVAL; break; default: - PRINT_WARN("invalid ioctl 0x%x\n", command); rc = -EINVAL; } @@ -474,7 +473,6 @@ tapeblock_init(void) if (tapeblock_major == 0) tapeblock_major = rc; - PRINT_INFO("tape gets major %d for block device\n", tapeblock_major); return 0; } diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c index be0ce2215c8d..31566c55adfe 100644 --- a/drivers/s390/char/tape_char.c +++ b/drivers/s390/char/tape_char.c @@ -24,8 +24,6 @@ #include "tape_std.h" #include "tape_class.h" -#define PRINTK_HEADER "TAPE_CHAR: " - #define TAPECHAR_MAJOR 0 /* get dynamic major */ /* @@ -102,8 +100,6 @@ tapechar_check_idalbuffer(struct tape_device *device, size_t block_size) if (block_size > MAX_BLOCKSIZE) { DBF_EVENT(3, "Invalid blocksize (%zd > %d)\n", block_size, MAX_BLOCKSIZE); - PRINT_ERR("Invalid blocksize (%zd> %d)\n", - block_size, MAX_BLOCKSIZE); return -EINVAL; } @@ -485,7 +481,6 @@ tapechar_init (void) return -1; tapechar_major = MAJOR(dev); - PRINT_INFO("tape gets major %d for character devices\n", MAJOR(dev)); return 0; } @@ -496,7 +491,5 @@ tapechar_init (void) void tapechar_exit(void) { - PRINT_INFO("tape releases major %d for character devices\n", - tapechar_major); unregister_chrdev_region(MKDEV(tapechar_major, 0), 256); } diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index f9bb51fa7f5b..08c09d3503cf 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -11,6 +11,7 @@ * Stefan Bader <shbader@de.ibm.com> */ +#define KMSG_COMPONENT "tape" #include <linux/module.h> #include <linux/init.h> // for kernel parameters #include <linux/kmod.h> // for requesting modules @@ -25,7 +26,6 @@ #include "tape.h" #include "tape_std.h" -#define PRINTK_HEADER "TAPE_CORE: " #define LONG_BUSY_TIMEOUT 180 /* seconds */ static void __tape_do_irq (struct ccw_device *, unsigned long, struct irb *); @@ -214,13 +214,13 @@ tape_med_state_set(struct tape_device *device, enum tape_medium_state newstate) switch(newstate){ case MS_UNLOADED: device->tape_generic_status |= GMT_DR_OPEN(~0); - PRINT_INFO("(%s): Tape is unloaded\n", - dev_name(&device->cdev->dev)); + dev_info(&device->cdev->dev, "The tape cartridge has been " + "successfully unloaded\n"); break; case MS_LOADED: device->tape_generic_status &= ~GMT_DR_OPEN(~0); - PRINT_INFO("(%s): Tape has been mounted\n", - dev_name(&device->cdev->dev)); + dev_info(&device->cdev->dev, "A tape cartridge has been " + "mounted\n"); break; default: // print nothing @@ -333,7 +333,6 @@ tape_generic_online(struct tape_device *device, /* Let the discipline have a go at the device. */ device->discipline = discipline; if (!try_module_get(discipline->owner)) { - PRINT_ERR("Cannot get module. Module gone.\n"); return -EINVAL; } @@ -391,7 +390,6 @@ int tape_generic_offline(struct tape_device *device) { if (!device) { - PRINT_ERR("tape_generic_offline: no such device\n"); return -ENODEV; } @@ -413,9 +411,6 @@ tape_generic_offline(struct tape_device *device) DBF_EVENT(3, "(%08x): Set offline failed " "- drive in use.\n", device->cdev_id); - PRINT_WARN("(%s): Set offline failed " - "- drive in use.\n", - dev_name(&device->cdev->dev)); spin_unlock_irq(get_ccwdev_lock(device->cdev)); return -EBUSY; } @@ -435,14 +430,11 @@ tape_alloc_device(void) device = kzalloc(sizeof(struct tape_device), GFP_KERNEL); if (device == NULL) { DBF_EXCEPTION(2, "ti:no mem\n"); - PRINT_INFO ("can't allocate memory for " - "tape info structure\n"); return ERR_PTR(-ENOMEM); } device->modeset_byte = kmalloc(1, GFP_KERNEL | GFP_DMA); if (device->modeset_byte == NULL) { DBF_EXCEPTION(2, "ti:no mem\n"); - PRINT_INFO("can't allocate memory for modeset byte\n"); kfree(device); return ERR_PTR(-ENOMEM); } @@ -490,7 +482,6 @@ tape_put_device(struct tape_device *device) } else { if (remain < 0) { DBF_EVENT(4, "put device without reference\n"); - PRINT_ERR("put device without reference\n"); } else { DBF_EVENT(4, "tape_free_device(%p)\n", device); kfree(device->modeset_byte); @@ -538,8 +529,6 @@ tape_generic_probe(struct ccw_device *cdev) ret = sysfs_create_group(&cdev->dev.kobj, &tape_attr_group); if (ret) { tape_put_device(device); - PRINT_ERR("probe failed for tape device %s\n", - dev_name(&cdev->dev)); return ret; } cdev->dev.driver_data = device; @@ -547,7 +536,6 @@ tape_generic_probe(struct ccw_device *cdev) device->cdev = cdev; ccw_device_get_id(cdev, &dev_id); device->cdev_id = devid_to_int(&dev_id); - PRINT_INFO("tape device %s found\n", dev_name(&cdev->dev)); return ret; } @@ -584,7 +572,6 @@ tape_generic_remove(struct ccw_device *cdev) device = cdev->dev.driver_data; if (!device) { - PRINT_ERR("No device pointer in tape_generic_remove!\n"); return; } DBF_LH(3, "(%08x): tape_generic_remove(%p)\n", device->cdev_id, cdev); @@ -615,10 +602,8 @@ tape_generic_remove(struct ccw_device *cdev) */ DBF_EVENT(3, "(%08x): Drive in use vanished!\n", device->cdev_id); - PRINT_WARN("(%s): Drive in use vanished - " - "expect trouble!\n", - dev_name(&device->cdev->dev)); - PRINT_WARN("State was %i\n", device->tape_state); + dev_warn(&device->cdev->dev, "A tape unit was detached" + " while in use\n"); tape_state_set(device, TS_NOT_OPER); __tape_discard_requests(device); spin_unlock_irq(get_ccwdev_lock(device->cdev)); @@ -639,8 +624,7 @@ tape_alloc_request(int cplength, int datasize) { struct tape_request *request; - if (datasize > PAGE_SIZE || (cplength*sizeof(struct ccw1)) > PAGE_SIZE) - BUG(); + BUG_ON(datasize > PAGE_SIZE || (cplength*sizeof(struct ccw1)) > PAGE_SIZE); DBF_LH(6, "tape_alloc_request(%d, %d)\n", cplength, datasize); @@ -797,8 +781,7 @@ static void tape_long_busy_timeout(unsigned long data) device = (struct tape_device *) data; spin_lock_irq(get_ccwdev_lock(device->cdev)); request = list_entry(device->req_queue.next, struct tape_request, list); - if (request->status != TAPE_REQUEST_LONG_BUSY) - BUG(); + BUG_ON(request->status != TAPE_REQUEST_LONG_BUSY); DBF_LH(6, "%08x: Long busy timeout.\n", device->cdev_id); __tape_start_next_request(device); device->lb_timeout.data = (unsigned long) tape_put_device(device); @@ -830,30 +813,6 @@ __tape_end_request( } /* - * Write sense data to console/dbf - */ -void -tape_dump_sense(struct tape_device* device, struct tape_request *request, - struct irb *irb) -{ - unsigned int *sptr; - - PRINT_INFO("-------------------------------------------------\n"); - PRINT_INFO("DSTAT : %02x CSTAT: %02x CPA: %04x\n", - irb->scsw.cmd.dstat, irb->scsw.cmd.cstat, irb->scsw.cmd.cpa); - PRINT_INFO("DEVICE: %s\n", dev_name(&device->cdev->dev)); - if (request != NULL) - PRINT_INFO("OP : %s\n", tape_op_verbose[request->op]); - - sptr = (unsigned int *) irb->ecw; - PRINT_INFO("Sense data: %08X %08X %08X %08X \n", - sptr[0], sptr[1], sptr[2], sptr[3]); - PRINT_INFO("Sense data: %08X %08X %08X %08X \n", - sptr[4], sptr[5], sptr[6], sptr[7]); - PRINT_INFO("--------------------------------------------------\n"); -} - -/* * Write sense data to dbf */ void @@ -1051,8 +1010,6 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) device = (struct tape_device *) cdev->dev.driver_data; if (device == NULL) { - PRINT_ERR("could not get device structure for %s " - "in interrupt\n", dev_name(&cdev->dev)); return; } request = (struct tape_request *) intparm; @@ -1064,13 +1021,13 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) /* FIXME: What to do with the request? */ switch (PTR_ERR(irb)) { case -ETIMEDOUT: - PRINT_WARN("(%s): Request timed out\n", + DBF_LH(1, "(%s): Request timed out\n", dev_name(&cdev->dev)); case -EIO: __tape_end_request(device, request, -EIO); break; default: - PRINT_ERR("(%s): Unexpected i/o error %li\n", + DBF_LH(1, "(%s): Unexpected i/o error %li\n", dev_name(&cdev->dev), PTR_ERR(irb)); } @@ -1182,8 +1139,6 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) default: if (rc > 0) { DBF_EVENT(6, "xunknownrc\n"); - PRINT_ERR("Invalid return code from discipline " - "interrupt function.\n"); __tape_end_request(device, request, -EIO); } else { __tape_end_request(device, request, rc); @@ -1323,7 +1278,6 @@ EXPORT_SYMBOL(tape_state_set); EXPORT_SYMBOL(tape_med_state_set); EXPORT_SYMBOL(tape_alloc_request); EXPORT_SYMBOL(tape_free_request); -EXPORT_SYMBOL(tape_dump_sense); EXPORT_SYMBOL(tape_dump_sense_dbf); EXPORT_SYMBOL(tape_do_io); EXPORT_SYMBOL(tape_do_io_async); diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c index 8a376af926a7..202f42132939 100644 --- a/drivers/s390/char/tape_proc.c +++ b/drivers/s390/char/tape_proc.c @@ -20,8 +20,6 @@ #include "tape.h" -#define PRINTK_HEADER "TAPE_PROC: " - static const char *tape_med_st_verbose[MS_SIZE] = { [MS_UNKNOWN] = "UNKNOWN ", @@ -128,7 +126,6 @@ tape_proc_init(void) proc_create("tapedevices", S_IFREG | S_IRUGO | S_IWUSR, NULL, &tape_proc_ops); if (tape_proc_devices == NULL) { - PRINT_WARN("tape: Cannot register procfs entry tapedevices\n"); return; } } diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c index 5bd573d144d6..1a9420ba518d 100644 --- a/drivers/s390/char/tape_std.c +++ b/drivers/s390/char/tape_std.c @@ -26,8 +26,6 @@ #include "tape.h" #include "tape_std.h" -#define PRINTK_HEADER "TAPE_STD: " - /* * tape_std_assign */ @@ -39,16 +37,15 @@ tape_std_assign_timeout(unsigned long data) int rc; request = (struct tape_request *) data; - if ((device = request->device) == NULL) - BUG(); + device = request->device; + BUG_ON(!device); DBF_EVENT(3, "%08x: Assignment timeout. Device busy.\n", device->cdev_id); rc = tape_cancel_io(device, request); if(rc) - PRINT_ERR("(%s): Assign timeout: Cancel failed with rc = %i\n", + DBF_EVENT(3, "(%s): Assign timeout: Cancel failed with rc = %i\n", dev_name(&device->cdev->dev), rc); - } int @@ -82,8 +79,6 @@ tape_std_assign(struct tape_device *device) del_timer(&timeout); if (rc != 0) { - PRINT_WARN("%s: assign failed - device might be busy\n", - dev_name(&device->cdev->dev)); DBF_EVENT(3, "%08x: assign failed - device might be busy\n", device->cdev_id); } else { @@ -105,8 +100,6 @@ tape_std_unassign (struct tape_device *device) if (device->tape_state == TS_NOT_OPER) { DBF_EVENT(3, "(%08x): Can't unassign device\n", device->cdev_id); - PRINT_WARN("(%s): Can't unassign device - device gone\n", - dev_name(&device->cdev->dev)); return -EIO; } @@ -120,8 +113,6 @@ tape_std_unassign (struct tape_device *device) if ((rc = tape_do_io(device, request)) != 0) { DBF_EVENT(3, "%08x: Unassign failed\n", device->cdev_id); - PRINT_WARN("%s: Unassign failed\n", - dev_name(&device->cdev->dev)); } else { DBF_EVENT(3, "%08x: Tape unassigned\n", device->cdev_id); } @@ -242,8 +233,6 @@ tape_std_mtsetblk(struct tape_device *device, int count) if (count > MAX_BLOCKSIZE) { DBF_EVENT(3, "Invalid block size (%d > %d) given.\n", count, MAX_BLOCKSIZE); - PRINT_ERR("Invalid block size (%d > %d) given.\n", - count, MAX_BLOCKSIZE); return -EINVAL; } @@ -633,14 +622,6 @@ tape_std_mtcompression(struct tape_device *device, int mt_count) if (mt_count < 0 || mt_count > 1) { DBF_EXCEPTION(6, "xcom parm\n"); - if (*device->modeset_byte & 0x08) - PRINT_INFO("(%s) Compression is currently on\n", - dev_name(&device->cdev->dev)); - else - PRINT_INFO("(%s) Compression is currently off\n", - dev_name(&device->cdev->dev)); - PRINT_INFO("Use 1 to switch compression on, 0 to " - "switch it off\n"); return -EINVAL; } request = tape_alloc_request(2, 0); diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index eefc6611412e..1bbae433fbd8 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -5,7 +5,7 @@ * * For more information please refer to Documentation/s390/zfcpdump.txt * - * Copyright IBM Corp. 2003,2007 + * Copyright IBM Corp. 2003,2008 * Author(s): Michael Holzheu */ @@ -24,6 +24,7 @@ #include <asm/debug.h> #include <asm/processor.h> #include <asm/irqflags.h> +#include <asm/checksum.h> #include "sclp.h" #define TRACE(x...) debug_sprintf_event(zcore_dbf, 1, x) @@ -48,12 +49,19 @@ struct sys_info { union save_area lc_mask; }; +struct ipib_info { + unsigned long ipib; + u32 checksum; +} __attribute__((packed)); + static struct sys_info sys_info; static struct debug_info *zcore_dbf; static int hsa_available; static struct dentry *zcore_dir; static struct dentry *zcore_file; static struct dentry *zcore_memmap_file; +static struct dentry *zcore_reipl_file; +static struct ipl_parameter_block *ipl_block; /* * Copy memory from HSA to kernel or user memory (not reentrant): @@ -527,6 +535,33 @@ static const struct file_operations zcore_memmap_fops = { .release = zcore_memmap_release, }; +static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf, + size_t count, loff_t *ppos) +{ + if (ipl_block) { + diag308(DIAG308_SET, ipl_block); + diag308(DIAG308_IPL, NULL); + } + return count; +} + +static int zcore_reipl_open(struct inode *inode, struct file *filp) +{ + return 0; +} + +static int zcore_reipl_release(struct inode *inode, struct file *filp) +{ + return 0; +} + +static const struct file_operations zcore_reipl_fops = { + .owner = THIS_MODULE, + .write = zcore_reipl_write, + .open = zcore_reipl_open, + .release = zcore_reipl_release, +}; + static void __init set_s390_lc_mask(union save_area *map) { @@ -645,6 +680,40 @@ static int __init zcore_header_init(int arch, struct zcore_header *hdr) return 0; } +/* + * Provide IPL parameter information block from either HSA or memory + * for future reipl + */ +static int __init zcore_reipl_init(void) +{ + struct ipib_info ipib_info; + int rc; + + rc = memcpy_hsa_kernel(&ipib_info, __LC_DUMP_REIPL, sizeof(ipib_info)); + if (rc) + return rc; + if (ipib_info.ipib == 0) + return 0; + ipl_block = (void *) __get_free_page(GFP_KERNEL); + if (!ipl_block) + return -ENOMEM; + if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE) + rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE); + else + rc = memcpy_real(ipl_block, ipib_info.ipib, PAGE_SIZE); + if (rc) { + free_page((unsigned long) ipl_block); + return rc; + } + if (csum_partial(ipl_block, ipl_block->hdr.len, 0) != + ipib_info.checksum) { + TRACE("Checksum does not match\n"); + free_page((unsigned long) ipl_block); + ipl_block = NULL; + } + return 0; +} + static int __init zcore_init(void) { unsigned char arch; @@ -690,6 +759,10 @@ static int __init zcore_init(void) if (rc) goto fail; + rc = zcore_reipl_init(); + if (rc) + goto fail; + zcore_dir = debugfs_create_dir("zcore" , NULL); if (!zcore_dir) { rc = -ENOMEM; @@ -707,9 +780,17 @@ static int __init zcore_init(void) rc = -ENOMEM; goto fail_file; } + zcore_reipl_file = debugfs_create_file("reipl", S_IRUSR, zcore_dir, + NULL, &zcore_reipl_fops); + if (!zcore_reipl_file) { + rc = -ENOMEM; + goto fail_memmap_file; + } hsa_available = 1; return 0; +fail_memmap_file: + debugfs_remove(zcore_memmap_file); fail_file: debugfs_remove(zcore_file); fail_dir: @@ -723,10 +804,15 @@ static void __exit zcore_exit(void) { debug_unregister(zcore_dbf); sclp_sdias_exit(); + free_page((unsigned long) ipl_block); + debugfs_remove(zcore_reipl_file); + debugfs_remove(zcore_memmap_file); + debugfs_remove(zcore_file); + debugfs_remove(zcore_dir); diag308(DIAG308_REL_HSA, NULL); } -MODULE_AUTHOR("Copyright IBM Corp. 2003,2007"); +MODULE_AUTHOR("Copyright IBM Corp. 2003,2008"); MODULE_DESCRIPTION("zcore module for zfcpdump support"); MODULE_LICENSE("GPL"); diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile index bd79bd165396..adb3dd301528 100644 --- a/drivers/s390/cio/Makefile +++ b/drivers/s390/cio/Makefile @@ -3,7 +3,7 @@ # obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o scsw.o \ - fcx.o itcw.o + fcx.o itcw.o crw.o ccw_device-objs += device.o device_fsm.o device_ops.o ccw_device-objs += device_id.o device_pgid.o device_status.o obj-y += ccw_device.o cmf.o diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index fe6cea15bbaf..65d2e769dfa1 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -34,8 +34,8 @@ struct airq_t { void *drv_data; }; -static union indicator_t indicators[MAX_ISC]; -static struct airq_t *airqs[MAX_ISC][NR_AIRQS]; +static union indicator_t indicators[MAX_ISC+1]; +static struct airq_t *airqs[MAX_ISC+1][NR_AIRQS]; static int register_airq(struct airq_t *airq, u8 isc) { @@ -133,6 +133,8 @@ void do_adapter_IO(u8 isc) while (word) { if (word & INDICATOR_MASK) { airq = airqs[isc][i]; + /* Make sure gcc reads from airqs only once. */ + barrier(); if (likely(airq)) airq->handler(&indicators[isc].byte[i], airq->drv_data); diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index fe00be3675cd..6565f027791e 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -336,8 +336,7 @@ cio_ignore_write(struct file *file, const char __user *user_buf, size_t user_len, loff_t *offset) { char *buf; - size_t i; - ssize_t rc, ret; + ssize_t rc, ret, i; if (*offset) return -EINVAL; diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 918e6fce2573..22ce765d537e 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -104,8 +104,9 @@ ccwgroup_ungroup_store(struct device *dev, struct device_attribute *attr, const rc = device_schedule_callback(dev, ccwgroup_ungroup_callback); out: if (rc) { - /* Release onoff "lock" when ungrouping failed. */ - atomic_set(&gdev->onoff, 0); + if (rc != -EAGAIN) + /* Release onoff "lock" when ungrouping failed. */ + atomic_set(&gdev->onoff, 0); return rc; } return count; @@ -314,16 +315,32 @@ error: } EXPORT_SYMBOL(ccwgroup_create_from_string); -static int __init -init_ccwgroup (void) +static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action, + void *data); + +static struct notifier_block ccwgroup_nb = { + .notifier_call = ccwgroup_notifier +}; + +static int __init init_ccwgroup(void) { - return bus_register (&ccwgroup_bus_type); + int ret; + + ret = bus_register(&ccwgroup_bus_type); + if (ret) + return ret; + + ret = bus_register_notifier(&ccwgroup_bus_type, &ccwgroup_nb); + if (ret) + bus_unregister(&ccwgroup_bus_type); + + return ret; } -static void __exit -cleanup_ccwgroup (void) +static void __exit cleanup_ccwgroup(void) { - bus_unregister (&ccwgroup_bus_type); + bus_unregister_notifier(&ccwgroup_bus_type, &ccwgroup_nb); + bus_unregister(&ccwgroup_bus_type); } module_init(init_ccwgroup); @@ -391,27 +408,28 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const unsigned long value; int ret; - gdev = to_ccwgroupdev(dev); if (!dev->driver) - return count; + return -ENODEV; + + gdev = to_ccwgroupdev(dev); + gdrv = to_ccwgroupdrv(dev->driver); - gdrv = to_ccwgroupdrv (gdev->dev.driver); if (!try_module_get(gdrv->owner)) return -EINVAL; ret = strict_strtoul(buf, 0, &value); if (ret) goto out; - ret = count; + if (value == 1) - ccwgroup_set_online(gdev); + ret = ccwgroup_set_online(gdev); else if (value == 0) - ccwgroup_set_offline(gdev); + ret = ccwgroup_set_offline(gdev); else ret = -EINVAL; out: module_put(gdrv->owner); - return ret; + return (ret == 0) ? count : ret; } static ssize_t @@ -453,13 +471,18 @@ ccwgroup_remove (struct device *dev) struct ccwgroup_device *gdev; struct ccwgroup_driver *gdrv; + device_remove_file(dev, &dev_attr_online); + device_remove_file(dev, &dev_attr_ungroup); + + if (!dev->driver) + return 0; + gdev = to_ccwgroupdev(dev); gdrv = to_ccwgroupdrv(dev->driver); - device_remove_file(dev, &dev_attr_online); - - if (gdrv && gdrv->remove) + if (gdrv->remove) gdrv->remove(gdev); + return 0; } @@ -468,9 +491,13 @@ static void ccwgroup_shutdown(struct device *dev) struct ccwgroup_device *gdev; struct ccwgroup_driver *gdrv; + if (!dev->driver) + return; + gdev = to_ccwgroupdev(dev); gdrv = to_ccwgroupdrv(dev->driver); - if (gdrv && gdrv->shutdown) + + if (gdrv->shutdown) gdrv->shutdown(gdev); } @@ -483,6 +510,19 @@ static struct bus_type ccwgroup_bus_type = { .shutdown = ccwgroup_shutdown, }; + +static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action, + void *data) +{ + struct device *dev = data; + + if (action == BUS_NOTIFY_UNBIND_DRIVER) + device_schedule_callback(dev, ccwgroup_ungroup_callback); + + return NOTIFY_OK; +} + + /** * ccwgroup_driver_register() - register a ccw group driver * @cdriver: driver to be registered diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index 1246f61a5338..3e5f304ad88f 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -17,8 +17,8 @@ #include <linux/errno.h> #include <asm/chpid.h> #include <asm/sclp.h> +#include <asm/crw.h> -#include "../s390mach.h" #include "cio.h" #include "css.h" #include "ioasm.h" @@ -706,12 +706,12 @@ static int __init chp_init(void) struct chp_id chpid; int ret; - ret = s390_register_crw_handler(CRW_RSC_CPATH, chp_process_crw); + ret = crw_register_handler(CRW_RSC_CPATH, chp_process_crw); if (ret) return ret; chp_wq = create_singlethread_workqueue("cio_chp"); if (!chp_wq) { - s390_unregister_crw_handler(CRW_RSC_CPATH); + crw_unregister_handler(CRW_RSC_CPATH); return -ENOMEM; } INIT_WORK(&cfg_work, cfg_func); diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index ebab6ea4659b..883f16f96f22 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -19,8 +19,8 @@ #include <asm/cio.h> #include <asm/chpid.h> #include <asm/chsc.h> +#include <asm/crw.h> -#include "../s390mach.h" #include "css.h" #include "cio.h" #include "cio_debug.h" @@ -589,6 +589,7 @@ __chsc_do_secm(struct channel_subsystem *css, int enable, void *page) case 0x0102: case 0x0103: ret = -EINVAL; + break; default: ret = chsc_error_from_response(secm_area->response.code); } @@ -820,7 +821,7 @@ int __init chsc_alloc_sei_area(void) "chsc machine checks!\n"); return -ENOMEM; } - ret = s390_register_crw_handler(CRW_RSC_CSS, chsc_process_crw); + ret = crw_register_handler(CRW_RSC_CSS, chsc_process_crw); if (ret) kfree(sei_page); return ret; @@ -828,7 +829,7 @@ int __init chsc_alloc_sei_area(void) void __init chsc_free_sei_area(void) { - s390_unregister_crw_handler(CRW_RSC_CSS); + crw_unregister_handler(CRW_RSC_CSS); kfree(sei_page); } diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 0a2f2edafc03..93eca1731b81 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -84,8 +84,8 @@ static int chsc_subchannel_probe(struct subchannel *sch) kfree(private); } else { sch->private = private; - if (sch->dev.uevent_suppress) { - sch->dev.uevent_suppress = 0; + if (dev_get_uevent_suppress(&sch->dev)) { + dev_set_uevent_suppress(&sch->dev, 0); kobject_uevent(&sch->dev.kobj, KOBJ_ADD); } } diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 659f8a791656..2aebb9823044 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -30,6 +30,8 @@ #include <asm/isc.h> #include <asm/cpu.h> #include <asm/fcx.h> +#include <asm/nmi.h> +#include <asm/crw.h> #include "cio.h" #include "css.h" #include "chsc.h" @@ -38,7 +40,6 @@ #include "blacklist.h" #include "cio_debug.h" #include "chp.h" -#include "../s390mach.h" debug_info_t *cio_debug_msg_id; debug_info_t *cio_debug_trace_id; @@ -471,6 +472,7 @@ EXPORT_SYMBOL_GPL(cio_enable_subchannel); int cio_disable_subchannel(struct subchannel *sch) { char dbf_txt[15]; + int retry; int ret; CIO_TRACE_EVENT (2, "dissch"); @@ -481,16 +483,17 @@ int cio_disable_subchannel(struct subchannel *sch) if (cio_update_schib(sch)) return -ENODEV; - if (scsw_actl(&sch->schib.scsw) != 0) - /* - * the disable function must not be called while there are - * requests pending for completion ! - */ - return -EBUSY; - sch->config.ena = 0; - ret = cio_commit_config(sch); + for (retry = 0; retry < 3; retry++) { + ret = cio_commit_config(sch); + if (ret == -EBUSY) { + struct irb irb; + if (tsch(sch->schid, &irb) != 0) + break; + } else + break; + } sprintf (dbf_txt, "ret:%d", ret); CIO_TRACE_EVENT (2, dbf_txt); return ret; diff --git a/drivers/s390/cio/crw.c b/drivers/s390/cio/crw.c new file mode 100644 index 000000000000..d157665d0e76 --- /dev/null +++ b/drivers/s390/cio/crw.c @@ -0,0 +1,159 @@ +/* + * Channel report handling code + * + * Copyright IBM Corp. 2000,2009 + * Author(s): Ingo Adlung <adlung@de.ibm.com>, + * Martin Schwidefsky <schwidefsky@de.ibm.com>, + * Cornelia Huck <cornelia.huck@de.ibm.com>, + * Heiko Carstens <heiko.carstens@de.ibm.com>, + */ + +#include <linux/semaphore.h> +#include <linux/mutex.h> +#include <linux/kthread.h> +#include <linux/init.h> +#include <asm/crw.h> + +static struct semaphore crw_semaphore; +static DEFINE_MUTEX(crw_handler_mutex); +static crw_handler_t crw_handlers[NR_RSCS]; + +/** + * crw_register_handler() - register a channel report word handler + * @rsc: reporting source code to handle + * @handler: handler to be registered + * + * Returns %0 on success and a negative error value otherwise. + */ +int crw_register_handler(int rsc, crw_handler_t handler) +{ + int rc = 0; + + if ((rsc < 0) || (rsc >= NR_RSCS)) + return -EINVAL; + mutex_lock(&crw_handler_mutex); + if (crw_handlers[rsc]) + rc = -EBUSY; + else + crw_handlers[rsc] = handler; + mutex_unlock(&crw_handler_mutex); + return rc; +} + +/** + * crw_unregister_handler() - unregister a channel report word handler + * @rsc: reporting source code to handle + */ +void crw_unregister_handler(int rsc) +{ + if ((rsc < 0) || (rsc >= NR_RSCS)) + return; + mutex_lock(&crw_handler_mutex); + crw_handlers[rsc] = NULL; + mutex_unlock(&crw_handler_mutex); +} + +/* + * Retrieve CRWs and call function to handle event. + */ +static int crw_collect_info(void *unused) +{ + struct crw crw[2]; + int ccode; + unsigned int chain; + int ignore; + +repeat: + ignore = down_interruptible(&crw_semaphore); + chain = 0; + while (1) { + crw_handler_t handler; + + if (unlikely(chain > 1)) { + struct crw tmp_crw; + + printk(KERN_WARNING"%s: Code does not support more " + "than two chained crws; please report to " + "linux390@de.ibm.com!\n", __func__); + ccode = stcrw(&tmp_crw); + printk(KERN_WARNING"%s: crw reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + __func__, tmp_crw.slct, tmp_crw.oflw, + tmp_crw.chn, tmp_crw.rsc, tmp_crw.anc, + tmp_crw.erc, tmp_crw.rsid); + printk(KERN_WARNING"%s: This was crw number %x in the " + "chain\n", __func__, chain); + if (ccode != 0) + break; + chain = tmp_crw.chn ? chain + 1 : 0; + continue; + } + ccode = stcrw(&crw[chain]); + if (ccode != 0) + break; + printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + crw[chain].slct, crw[chain].oflw, crw[chain].chn, + crw[chain].rsc, crw[chain].anc, crw[chain].erc, + crw[chain].rsid); + /* Check for overflows. */ + if (crw[chain].oflw) { + int i; + + pr_debug("%s: crw overflow detected!\n", __func__); + mutex_lock(&crw_handler_mutex); + for (i = 0; i < NR_RSCS; i++) { + if (crw_handlers[i]) + crw_handlers[i](NULL, NULL, 1); + } + mutex_unlock(&crw_handler_mutex); + chain = 0; + continue; + } + if (crw[0].chn && !chain) { + chain++; + continue; + } + mutex_lock(&crw_handler_mutex); + handler = crw_handlers[crw[chain].rsc]; + if (handler) + handler(&crw[0], chain ? &crw[1] : NULL, 0); + mutex_unlock(&crw_handler_mutex); + /* chain is always 0 or 1 here. */ + chain = crw[chain].chn ? chain + 1 : 0; + } + goto repeat; + return 0; +} + +void crw_handle_channel_report(void) +{ + up(&crw_semaphore); +} + +/* + * Separate initcall needed for semaphore initialization since + * crw_handle_channel_report might be called before crw_machine_check_init. + */ +static int __init crw_init_semaphore(void) +{ + init_MUTEX_LOCKED(&crw_semaphore); + return 0; +} +pure_initcall(crw_init_semaphore); + +/* + * Machine checks for the channel subsystem must be enabled + * after the channel subsystem is initialized + */ +static int __init crw_machine_check_init(void) +{ + struct task_struct *task; + + task = kthread_run(crw_collect_info, NULL, "kmcheck"); + if (IS_ERR(task)) + return PTR_ERR(task); + ctl_set_bit(14, 28); /* enable channel report MCH */ + return 0; +} +device_initcall(crw_machine_check_init); diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 8019288bc6de..0085d8901792 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -18,8 +18,8 @@ #include <linux/list.h> #include <linux/reboot.h> #include <asm/isc.h> +#include <asm/crw.h> -#include "../s390mach.h" #include "css.h" #include "cio.h" #include "cio_debug.h" @@ -83,6 +83,25 @@ static int call_fn_unknown_sch(struct subchannel_id schid, void *data) return rc; } +static int call_fn_all_sch(struct subchannel_id schid, void *data) +{ + struct cb_data *cb = data; + struct subchannel *sch; + int rc = 0; + + sch = get_subchannel_by_schid(schid); + if (sch) { + if (cb->fn_known_sch) + rc = cb->fn_known_sch(sch, cb->data); + put_device(&sch->dev); + } else { + if (cb->fn_unknown_sch) + rc = cb->fn_unknown_sch(schid, cb->data); + } + + return rc; +} + int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *), int (*fn_unknown)(struct subchannel_id, void *), void *data) @@ -90,13 +109,17 @@ int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *), struct cb_data cb; int rc; - cb.set = idset_sch_new(); - if (!cb.set) - return -ENOMEM; - idset_fill(cb.set); cb.data = data; cb.fn_known_sch = fn_known; cb.fn_unknown_sch = fn_unknown; + + cb.set = idset_sch_new(); + if (!cb.set) + /* fall back to brute force scanning in case of oom */ + return for_each_subchannel(call_fn_all_sch, &cb); + + idset_fill(cb.set); + /* Process registered subchannels. */ rc = bus_for_each_dev(&css_bus_type, NULL, &cb, call_fn_known_sch); if (rc) @@ -272,7 +295,7 @@ static int css_register_subchannel(struct subchannel *sch) * the subchannel driver can decide itself when it wants to inform * userspace of its existence. */ - sch->dev.uevent_suppress = 1; + dev_set_uevent_suppress(&sch->dev, 1); css_update_ssd_info(sch); /* make it known to the system */ ret = css_sch_device_register(sch); @@ -287,7 +310,7 @@ static int css_register_subchannel(struct subchannel *sch) * a fitting driver module may be loaded based on the * modalias. */ - sch->dev.uevent_suppress = 0; + dev_set_uevent_suppress(&sch->dev, 0); kobject_uevent(&sch->dev.kobj, KOBJ_ADD); } return ret; @@ -510,6 +533,17 @@ static int reprobe_subchannel(struct subchannel_id schid, void *data) return ret; } +static void reprobe_after_idle(struct work_struct *unused) +{ + /* Make sure initial subchannel scan is done. */ + wait_event(ccw_device_init_wq, + atomic_read(&ccw_device_init_count) == 0); + if (need_reprobe) + css_schedule_reprobe(); +} + +static DECLARE_WORK(reprobe_idle_work, reprobe_after_idle); + /* Work function used to reprobe all unregistered subchannels. */ static void reprobe_all(struct work_struct *unused) { @@ -517,10 +551,12 @@ static void reprobe_all(struct work_struct *unused) CIO_MSG_EVENT(4, "reprobe start\n"); - need_reprobe = 0; /* Make sure initial subchannel scan is done. */ - wait_event(ccw_device_init_wq, - atomic_read(&ccw_device_init_count) == 0); + if (atomic_read(&ccw_device_init_count) != 0) { + queue_work(ccw_device_work, &reprobe_idle_work); + return; + } + need_reprobe = 0; ret = for_each_subchannel_staged(NULL, reprobe_subchannel, NULL); CIO_MSG_EVENT(4, "reprobe done (rc=%d, need_reprobe=%d)\n", ret, @@ -619,7 +655,7 @@ css_generate_pgid(struct channel_subsystem *css, u32 tod_high) css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid; } else { #ifdef CONFIG_SMP - css->global_pgid.pgid_high.cpu_addr = hard_smp_processor_id(); + css->global_pgid.pgid_high.cpu_addr = stap(); #else css->global_pgid.pgid_high.cpu_addr = 0; #endif @@ -765,7 +801,7 @@ init_channel_subsystem (void) if (ret) goto out; - ret = s390_register_crw_handler(CRW_RSC_SCH, css_process_crw); + ret = crw_register_handler(CRW_RSC_SCH, css_process_crw); if (ret) goto out; @@ -845,7 +881,7 @@ out_unregister: out_bus: bus_unregister(&css_bus_type); out: - s390_unregister_crw_handler(CRW_RSC_CSS); + crw_unregister_handler(CRW_RSC_CSS); chsc_free_sei_area(); kfree(slow_subchannel_set); pr_alert("The CSS device driver initialization failed with " diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 23d5752349b5..35441fa16be1 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -310,8 +310,6 @@ static void ccw_device_remove_orphan_cb(struct work_struct *work) put_device(&cdev->dev); } -static void ccw_device_call_sch_unregister(struct work_struct *work); - static void ccw_device_remove_disconnected(struct ccw_device *cdev) { @@ -335,11 +333,10 @@ ccw_device_remove_disconnected(struct ccw_device *cdev) spin_unlock_irqrestore(cdev->ccwlock, flags); PREPARE_WORK(&cdev->private->kick_work, ccw_device_remove_orphan_cb); + queue_work(slow_path_wq, &cdev->private->kick_work); } else /* Deregister subchannel, which will kill the ccw device. */ - PREPARE_WORK(&cdev->private->kick_work, - ccw_device_call_sch_unregister); - queue_work(slow_path_wq, &cdev->private->kick_work); + ccw_device_schedule_sch_unregister(cdev); } /** @@ -457,12 +454,13 @@ int ccw_device_set_online(struct ccw_device *cdev) return (ret == 0) ? -ENODEV : ret; } -static void online_store_handle_offline(struct ccw_device *cdev) +static int online_store_handle_offline(struct ccw_device *cdev) { if (cdev->private->state == DEV_STATE_DISCONNECTED) ccw_device_remove_disconnected(cdev); - else if (cdev->drv && cdev->drv->set_offline) - ccw_device_set_offline(cdev); + else if (cdev->online && cdev->drv && cdev->drv->set_offline) + return ccw_device_set_offline(cdev); + return 0; } static int online_store_recog_and_online(struct ccw_device *cdev) @@ -470,7 +468,7 @@ static int online_store_recog_and_online(struct ccw_device *cdev) int ret; /* Do device recognition, if needed. */ - if (cdev->id.cu_type == 0) { + if (cdev->private->state == DEV_STATE_BOXED) { ret = ccw_device_recognition(cdev); if (ret) { CIO_MSG_EVENT(0, "Couldn't start recognition " @@ -481,17 +479,21 @@ static int online_store_recog_and_online(struct ccw_device *cdev) } wait_event(cdev->private->wait_q, cdev->private->flags.recog_done); + if (cdev->private->state != DEV_STATE_OFFLINE) + /* recognition failed */ + return -EAGAIN; } if (cdev->drv && cdev->drv->set_online) ccw_device_set_online(cdev); return 0; } + static int online_store_handle_online(struct ccw_device *cdev, int force) { int ret; ret = online_store_recog_and_online(cdev); - if (ret) + if (ret && !force) return ret; if (force && cdev->private->state == DEV_STATE_BOXED) { ret = ccw_device_stlck(cdev); @@ -499,7 +501,9 @@ static int online_store_handle_online(struct ccw_device *cdev, int force) return ret; if (cdev->id.cu_type == 0) cdev->private->state = DEV_STATE_NOT_OPER; - online_store_recog_and_online(cdev); + ret = online_store_recog_and_online(cdev); + if (ret) + return ret; } return 0; } @@ -511,7 +515,11 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr, int force, ret; unsigned long i; - if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0) + if ((cdev->private->state != DEV_STATE_OFFLINE && + cdev->private->state != DEV_STATE_ONLINE && + cdev->private->state != DEV_STATE_BOXED && + cdev->private->state != DEV_STATE_DISCONNECTED) || + atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0) return -EAGAIN; if (cdev->drv && !try_module_get(cdev->drv->owner)) { @@ -530,13 +538,10 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr, goto out; switch (i) { case 0: - online_store_handle_offline(cdev); - ret = count; + ret = online_store_handle_offline(cdev); break; case 1: ret = online_store_handle_online(cdev, force); - if (!ret) - ret = count; break; default: ret = -EINVAL; @@ -545,7 +550,7 @@ out: if (cdev->drv) module_put(cdev->drv->owner); atomic_set(&cdev->private->onoff, 0); - return ret; + return (ret < 0) ? ret : count; } static ssize_t @@ -681,35 +686,22 @@ get_orphaned_ccwdev_by_dev_id(struct channel_subsystem *css, return dev ? to_ccwdev(dev) : NULL; } -static void -ccw_device_add_changed(struct work_struct *work) -{ - struct ccw_device_private *priv; - struct ccw_device *cdev; - - priv = container_of(work, struct ccw_device_private, kick_work); - cdev = priv->cdev; - if (device_add(&cdev->dev)) { - put_device(&cdev->dev); - return; - } - set_bit(1, &cdev->private->registered); -} - -void ccw_device_do_unreg_rereg(struct work_struct *work) +void ccw_device_do_unbind_bind(struct work_struct *work) { struct ccw_device_private *priv; struct ccw_device *cdev; struct subchannel *sch; + int ret; priv = container_of(work, struct ccw_device_private, kick_work); cdev = priv->cdev; sch = to_subchannel(cdev->dev.parent); - ccw_device_unregister(cdev); - PREPARE_WORK(&cdev->private->kick_work, - ccw_device_add_changed); - queue_work(ccw_device_work, &cdev->private->kick_work); + if (test_bit(1, &cdev->private->registered)) { + device_release_driver(&cdev->dev); + ret = device_attach(&cdev->dev); + WARN_ON(ret == -ENODEV); + } } static void @@ -799,7 +791,7 @@ static void sch_attach_disconnected_device(struct subchannel *sch, return; other_sch = to_subchannel(cdev->dev.parent); /* Note: device_move() changes cdev->dev.parent */ - ret = device_move(&cdev->dev, &sch->dev); + ret = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV); if (ret) { CIO_MSG_EVENT(0, "Moving disconnected device 0.%x.%04x failed " "(ret=%d)!\n", cdev->private->dev_id.ssid, @@ -830,7 +822,7 @@ static void sch_attach_orphaned_device(struct subchannel *sch, * Try to move the ccw device to its new subchannel. * Note: device_move() changes cdev->dev.parent */ - ret = device_move(&cdev->dev, &sch->dev); + ret = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV); if (ret) { CIO_MSG_EVENT(0, "Moving device 0.%x.%04x from orphanage " "failed (ret=%d)!\n", @@ -897,7 +889,8 @@ void ccw_device_move_to_orphanage(struct work_struct *work) * ccw device can take its place on the subchannel. * Note: device_move() changes cdev->dev.parent */ - ret = device_move(&cdev->dev, &css->pseudo_subchannel->dev); + ret = device_move(&cdev->dev, &css->pseudo_subchannel->dev, + DPM_ORDER_NONE); if (ret) { CIO_MSG_EVENT(0, "Moving device 0.%x.%04x to orphanage failed " "(ret=%d)!\n", cdev->private->dev_id.ssid, @@ -981,7 +974,7 @@ io_subchannel_register(struct work_struct *work) * Now we know this subchannel will stay, we can throw * our delayed uevent. */ - sch->dev.uevent_suppress = 0; + dev_set_uevent_suppress(&sch->dev, 0); kobject_uevent(&sch->dev.kobj, KOBJ_ADD); /* make it known to the system */ ret = ccw_device_register(cdev); @@ -1028,33 +1021,35 @@ static void ccw_device_call_sch_unregister(struct work_struct *work) put_device(&sch->dev); } +void ccw_device_schedule_sch_unregister(struct ccw_device *cdev) +{ + PREPARE_WORK(&cdev->private->kick_work, + ccw_device_call_sch_unregister); + queue_work(slow_path_wq, &cdev->private->kick_work); +} + /* * subchannel recognition done. Called from the state machine. */ void io_subchannel_recog_done(struct ccw_device *cdev) { - struct subchannel *sch; - if (css_init_done == 0) { cdev->private->flags.recog_done = 1; return; } switch (cdev->private->state) { + case DEV_STATE_BOXED: + /* Device did not respond in time. */ case DEV_STATE_NOT_OPER: cdev->private->flags.recog_done = 1; /* Remove device found not operational. */ if (!get_device(&cdev->dev)) break; - sch = to_subchannel(cdev->dev.parent); - PREPARE_WORK(&cdev->private->kick_work, - ccw_device_call_sch_unregister); - queue_work(slow_path_wq, &cdev->private->kick_work); + ccw_device_schedule_sch_unregister(cdev); if (atomic_dec_and_test(&ccw_device_init_count)) wake_up(&ccw_device_init_wq); break; - case DEV_STATE_BOXED: - /* Device did not respond in time. */ case DEV_STATE_OFFLINE: /* * We can't register the device in interrupt context so @@ -1129,7 +1124,7 @@ static void ccw_device_move_to_sch(struct work_struct *work) * Try to move the ccw device to its new subchannel. * Note: device_move() changes cdev->dev.parent */ - rc = device_move(&cdev->dev, &sch->dev); + rc = device_move(&cdev->dev, &sch->dev, DPM_ORDER_PARENT_BEFORE_DEV); mutex_unlock(&sch->reg_mutex); if (rc) { CIO_MSG_EVENT(0, "Moving device 0.%x.%04x to subchannel " @@ -1243,7 +1238,7 @@ static int io_subchannel_probe(struct subchannel *sch) * the ccw_device and exit. This happens for all early * devices, e.g. the console. */ - sch->dev.uevent_suppress = 0; + dev_set_uevent_suppress(&sch->dev, 0); kobject_uevent(&sch->dev.kobj, KOBJ_ADD); cdev->dev.groups = ccwdev_attr_groups; device_initialize(&cdev->dev); @@ -1568,8 +1563,7 @@ static int purge_fn(struct device *dev, void *data) goto out; CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", priv->dev_id.ssid, priv->dev_id.devno); - PREPARE_WORK(&cdev->private->kick_work, ccw_device_call_sch_unregister); - queue_work(slow_path_wq, &cdev->private->kick_work); + ccw_device_schedule_sch_unregister(cdev); out: /* Abort loop in case of pending signal. */ diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index 0f2e63ea48de..f1cbbd94ad4e 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -80,13 +80,14 @@ void io_subchannel_init_config(struct subchannel *sch); int ccw_device_cancel_halt_clear(struct ccw_device *); -void ccw_device_do_unreg_rereg(struct work_struct *); +void ccw_device_do_unbind_bind(struct work_struct *); void ccw_device_move_to_orphanage(struct work_struct *); int ccw_device_is_orphan(struct ccw_device *); int ccw_device_recognition(struct ccw_device *); int ccw_device_online(struct ccw_device *); int ccw_device_offline(struct ccw_device *); +void ccw_device_schedule_sch_unregister(struct ccw_device *); int ccw_purge_blacklisted(void); /* Function prototypes for device status and basic sense stuff. */ diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 8df5eaafc5ab..e46049261561 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -194,7 +194,7 @@ ccw_device_handle_oper(struct ccw_device *cdev) cdev->id.dev_type != cdev->private->senseid.dev_type || cdev->id.dev_model != cdev->private->senseid.dev_model) { PREPARE_WORK(&cdev->private->kick_work, - ccw_device_do_unreg_rereg); + ccw_device_do_unbind_bind); queue_work(ccw_device_work, &cdev->private->kick_work); return 0; } @@ -256,13 +256,12 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) old_lpm = 0; if (sch->lpm != old_lpm) __recover_lost_chpids(sch, old_lpm); - if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) { - if (state == DEV_STATE_NOT_OPER) { - cdev->private->flags.recog_done = 1; - cdev->private->state = DEV_STATE_DISCONNECTED; - return; - } - /* Boxed devices don't need extra treatment. */ + if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID && + (state == DEV_STATE_NOT_OPER || state == DEV_STATE_BOXED)) { + cdev->private->flags.recog_done = 1; + cdev->private->state = DEV_STATE_DISCONNECTED; + wake_up(&cdev->private->wait_q); + return; } notify = 0; same_dev = 0; /* Keep the compiler quiet... */ @@ -274,7 +273,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) sch->schid.ssid, sch->schid.sch_no); break; case DEV_STATE_OFFLINE: - if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) { + if (cdev->online) { same_dev = ccw_device_handle_oper(cdev); notify = 1; } @@ -307,12 +306,17 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) " subchannel 0.%x.%04x\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); + if (cdev->id.cu_type != 0) { /* device was recognized before */ + cdev->private->flags.recog_done = 1; + cdev->private->state = DEV_STATE_BOXED; + wake_up(&cdev->private->wait_q); + return; + } break; } cdev->private->state = state; io_subchannel_recog_done(cdev); - if (state != DEV_STATE_NOT_OPER) - wake_up(&cdev->private->wait_q); + wake_up(&cdev->private->wait_q); } /* @@ -366,7 +370,7 @@ static void ccw_device_oper_notify(struct ccw_device *cdev) } /* Driver doesn't want device back. */ ccw_device_set_notoper(cdev); - PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unreg_rereg); + PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unbind_bind); queue_work(ccw_device_work, &cdev->private->kick_work); } @@ -390,10 +394,13 @@ ccw_device_done(struct ccw_device *cdev, int state) cdev->private->state = state; - - if (state == DEV_STATE_BOXED) + if (state == DEV_STATE_BOXED) { CIO_MSG_EVENT(0, "Boxed device %04x on subchannel %04x\n", cdev->private->dev_id.devno, sch->schid.sch_no); + if (cdev->online && !ccw_device_notify(cdev, CIO_BOXED)) + ccw_device_schedule_sch_unregister(cdev); + cdev->private->flags.donotify = 0; + } if (cdev->private->flags.donotify) { cdev->private->flags.donotify = 0; @@ -728,7 +735,7 @@ static void ccw_device_generic_notoper(struct ccw_device *cdev, { struct subchannel *sch; - cdev->private->state = DEV_STATE_NOT_OPER; + ccw_device_set_notoper(cdev); sch = to_subchannel(cdev->dev.parent); css_schedule_eval(sch->schid); } @@ -1052,7 +1059,7 @@ ccw_device_offline_irq(struct ccw_device *cdev, enum dev_event dev_event) sch = to_subchannel(cdev->dev.parent); /* * An interrupt in state offline means a previous disable was not - * successful. Try again. + * successful - should not happen, but we try to disable again. */ cio_disable_subchannel(sch); } diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index eabcc42d63df..151754d54745 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -680,7 +680,7 @@ int ccw_device_tm_intrg(struct ccw_device *cdev) if (cdev->private->state != DEV_STATE_ONLINE) return -EIO; if (!scsw_is_tm(&sch->schib.scsw) || - !(scsw_actl(&sch->schib.scsw) | SCSW_ACTL_START_PEND)) + !(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_START_PEND)) return -EINVAL; return cio_tm_intrg(sch); } diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 42f2b09631b6..13bcb8114388 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -186,6 +186,9 @@ struct qdio_input_q { /* input buffer acknowledgement flag */ int polling; + /* first ACK'ed buffer */ + int ack_start; + /* how much sbals are acknowledged with qebsm */ int ack_count; @@ -234,7 +237,7 @@ struct qdio_q { int first_to_check; /* first_to_check of the last time */ - int last_move_ftc; + int last_move; /* beginning position for calling the program */ int first_to_kick; @@ -244,7 +247,6 @@ struct qdio_q { struct qdio_irq *irq_ptr; struct tasklet_struct tasklet; - spinlock_t lock; /* error condition during a data transfer */ unsigned int qdio_error; @@ -354,7 +356,7 @@ int get_buf_state(struct qdio_q *q, unsigned int bufnr, unsigned char *state, int auto_ack); void qdio_check_outbound_after_thinint(struct qdio_q *q); int qdio_inbound_q_moved(struct qdio_q *q); -void qdio_kick_inbound_handler(struct qdio_q *q); +void qdio_kick_handler(struct qdio_q *q); void qdio_stop_polling(struct qdio_q *q); int qdio_siga_sync_q(struct qdio_q *q); diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index da7afb04e71f..e3434b34f86c 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -63,8 +63,9 @@ static int qstat_show(struct seq_file *m, void *v) seq_printf(m, "device state indicator: %d\n", *(u32 *)q->irq_ptr->dsci); seq_printf(m, "nr_used: %d\n", atomic_read(&q->nr_buf_used)); seq_printf(m, "ftc: %d\n", q->first_to_check); - seq_printf(m, "last_move_ftc: %d\n", q->last_move_ftc); + seq_printf(m, "last_move: %d\n", q->last_move); seq_printf(m, "polling: %d\n", q->u.in.polling); + seq_printf(m, "ack start: %d\n", q->u.in.ack_start); seq_printf(m, "ack count: %d\n", q->u.in.ack_count); seq_printf(m, "slsb buffer states:\n"); seq_printf(m, "|0 |8 |16 |24 |32 |40 |48 |56 63|\n"); diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 10cb0f8726e5..9e8a2914259b 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -380,11 +380,11 @@ inline void qdio_stop_polling(struct qdio_q *q) /* show the card that we are not polling anymore */ if (is_qebsm(q)) { - set_buf_states(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT, + set_buf_states(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT, q->u.in.ack_count); q->u.in.ack_count = 0; } else - set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT); + set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT); } static void announce_buffer_error(struct qdio_q *q, int count) @@ -419,15 +419,15 @@ static inline void inbound_primed(struct qdio_q *q, int count) if (!q->u.in.polling) { q->u.in.polling = 1; q->u.in.ack_count = count; - q->last_move_ftc = q->first_to_check; + q->u.in.ack_start = q->first_to_check; return; } /* delete the previous ACK's */ - set_buf_states(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT, + set_buf_states(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT, q->u.in.ack_count); q->u.in.ack_count = count; - q->last_move_ftc = q->first_to_check; + q->u.in.ack_start = q->first_to_check; return; } @@ -439,14 +439,13 @@ static inline void inbound_primed(struct qdio_q *q, int count) if (q->u.in.polling) { /* reset the previous ACK but first set the new one */ set_buf_state(q, new, SLSB_P_INPUT_ACK); - set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT); - } - else { + set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT); + } else { q->u.in.polling = 1; - set_buf_state(q, q->first_to_check, SLSB_P_INPUT_ACK); + set_buf_state(q, new, SLSB_P_INPUT_ACK); } - q->last_move_ftc = new; + q->u.in.ack_start = new; count--; if (!count) return; @@ -455,7 +454,7 @@ static inline void inbound_primed(struct qdio_q *q, int count) * Need to change all PRIMED buffers to NOT_INIT, otherwise * we're loosing initiative in the thinint code. */ - set_buf_states(q, next_buf(q->first_to_check), SLSB_P_INPUT_NOT_INIT, + set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT, count); } @@ -523,7 +522,8 @@ int qdio_inbound_q_moved(struct qdio_q *q) bufnr = get_inbound_buffer_frontier(q); - if ((bufnr != q->last_move_ftc) || q->qdio_error) { + if ((bufnr != q->last_move) || q->qdio_error) { + q->last_move = bufnr; if (!need_siga_sync(q) && !pci_out_supported(q)) q->u.in.timestamp = get_usecs(); @@ -570,29 +570,30 @@ static int qdio_inbound_q_done(struct qdio_q *q) } } -void qdio_kick_inbound_handler(struct qdio_q *q) +void qdio_kick_handler(struct qdio_q *q) { - int count, start, end; - - qdio_perf_stat_inc(&perf_stats.inbound_handler); - - start = q->first_to_kick; - end = q->first_to_check; - if (end >= start) - count = end - start; - else - count = end + QDIO_MAX_BUFFERS_PER_Q - start; - - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count); + int start = q->first_to_kick; + int end = q->first_to_check; + int count; if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)) return; - q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, - start, count, q->irq_ptr->int_parm); + count = sub_buf(end, start); + + if (q->is_input_q) { + qdio_perf_stat_inc(&perf_stats.inbound_handler); + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count); + } else { + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: nr:%1d", q->nr); + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count); + } + + q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count, + q->irq_ptr->int_parm); /* for the next time */ - q->first_to_kick = q->first_to_check; + q->first_to_kick = end; q->qdio_error = 0; } @@ -603,7 +604,7 @@ again: if (!qdio_inbound_q_moved(q)) return; - qdio_kick_inbound_handler(q); + qdio_kick_handler(q); if (!qdio_inbound_q_done(q)) /* means poll time is not yet over */ @@ -698,21 +699,21 @@ static inline int qdio_outbound_q_moved(struct qdio_q *q) bufnr = get_outbound_buffer_frontier(q); - if ((bufnr != q->last_move_ftc) || q->qdio_error) { - q->last_move_ftc = bufnr; + if ((bufnr != q->last_move) || q->qdio_error) { + q->last_move = bufnr; DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out moved:%1d", q->nr); return 1; } else return 0; } -static void qdio_kick_outbound_q(struct qdio_q *q) +static int qdio_kick_outbound_q(struct qdio_q *q) { unsigned int busy_bit; int cc; if (!need_siga_out(q)) - return; + return 0; DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w:%1d", q->nr); qdio_perf_stat_inc(&perf_stats.siga_out); @@ -724,75 +725,37 @@ static void qdio_kick_outbound_q(struct qdio_q *q) case 2: if (busy_bit) { DBF_ERROR("%4x cc2 REP:%1d", SCH_NO(q), q->nr); - q->qdio_error = cc | QDIO_ERROR_SIGA_BUSY; - } else { - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", - q->nr); - q->qdio_error = cc; - } + cc |= QDIO_ERROR_SIGA_BUSY; + } else + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", q->nr); break; case 1: case 3: DBF_ERROR("%4x SIGA-W:%1d", SCH_NO(q), cc); - q->qdio_error = cc; break; } -} - -static void qdio_kick_outbound_handler(struct qdio_q *q) -{ - int start, end, count; - - start = q->first_to_kick; - end = q->last_move_ftc; - if (end >= start) - count = end - start; - else - count = end + QDIO_MAX_BUFFERS_PER_Q - start; - - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kickouth: %1d", q->nr); - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count); - - if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)) - return; - - q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count, - q->irq_ptr->int_parm); - - /* for the next time: */ - q->first_to_kick = q->last_move_ftc; - q->qdio_error = 0; + return cc; } static void __qdio_outbound_processing(struct qdio_q *q) { - unsigned long flags; - qdio_perf_stat_inc(&perf_stats.tasklet_outbound); - spin_lock_irqsave(&q->lock, flags); - BUG_ON(atomic_read(&q->nr_buf_used) < 0); if (qdio_outbound_q_moved(q)) - qdio_kick_outbound_handler(q); - - spin_unlock_irqrestore(&q->lock, flags); + qdio_kick_handler(q); - if (queue_type(q) == QDIO_ZFCP_QFMT) { + if (queue_type(q) == QDIO_ZFCP_QFMT) if (!pci_out_supported(q) && !qdio_outbound_q_done(q)) - tasklet_schedule(&q->tasklet); - return; - } + goto sched; /* bail out for HiperSockets unicast queues */ if (queue_type(q) == QDIO_IQDIO_QFMT && !multicast_outbound(q)) return; if ((queue_type(q) == QDIO_IQDIO_QFMT) && - (atomic_read(&q->nr_buf_used)) > QDIO_IQDIO_POLL_LVL) { - tasklet_schedule(&q->tasklet); - return; - } + (atomic_read(&q->nr_buf_used)) > QDIO_IQDIO_POLL_LVL) + goto sched; if (q->u.out.pci_out_enabled) return; @@ -810,6 +773,12 @@ static void __qdio_outbound_processing(struct qdio_q *q) qdio_perf_stat_inc(&perf_stats.debug_tl_out_timer); } } + return; + +sched: + if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED)) + return; + tasklet_schedule(&q->tasklet); } /* outbound tasklet */ @@ -822,6 +791,9 @@ void qdio_outbound_processing(unsigned long data) void qdio_outbound_timer(unsigned long data) { struct qdio_q *q = (struct qdio_q *)data; + + if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED)) + return; tasklet_schedule(&q->tasklet); } @@ -863,6 +835,9 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr) int i; struct qdio_q *q; + if (unlikely(irq_ptr->state == QDIO_IRQ_STATE_STOPPED)) + return; + qdio_perf_stat_inc(&perf_stats.pci_int); for_each_input_queue(irq_ptr, q, i) @@ -1065,8 +1040,9 @@ EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc); * @cdev: associated ccw device * @how: use halt or clear to shutdown * - * This function calls qdio_shutdown() for @cdev with method @how - * and on success qdio_free() for @cdev. + * This function calls qdio_shutdown() for @cdev with method @how. + * and qdio_free(). The qdio_free() return value is ignored since + * !irq_ptr is already checked. */ int qdio_cleanup(struct ccw_device *cdev, int how) { @@ -1077,8 +1053,8 @@ int qdio_cleanup(struct ccw_device *cdev, int how) return -ENODEV; rc = qdio_shutdown(cdev, how); - if (rc == 0) - rc = qdio_free(cdev); + + qdio_free(cdev); return rc; } EXPORT_SYMBOL_GPL(qdio_cleanup); @@ -1090,11 +1066,11 @@ static void qdio_shutdown_queues(struct ccw_device *cdev) int i; for_each_input_queue(irq_ptr, q, i) - tasklet_disable(&q->tasklet); + tasklet_kill(&q->tasklet); for_each_output_queue(irq_ptr, q, i) { - tasklet_disable(&q->tasklet); del_timer(&q->u.out.timer); + tasklet_kill(&q->tasklet); } } @@ -1112,6 +1088,7 @@ int qdio_shutdown(struct ccw_device *cdev, int how) if (!irq_ptr) return -ENODEV; + BUG_ON(irqs_disabled()); DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no); mutex_lock(&irq_ptr->setup_mutex); @@ -1124,6 +1101,12 @@ int qdio_shutdown(struct ccw_device *cdev, int how) return 0; } + /* + * Indicate that the device is going down. Scheduling the queue + * tasklets is forbidden from here on. + */ + qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED); + tiqdio_remove_input_queues(irq_ptr); qdio_shutdown_queues(cdev); qdio_shutdown_debug_entries(irq_ptr, cdev); @@ -1403,9 +1386,8 @@ int qdio_activate(struct ccw_device *cdev) switch (irq_ptr->state) { case QDIO_IRQ_STATE_STOPPED: case QDIO_IRQ_STATE_ERR: - mutex_unlock(&irq_ptr->setup_mutex); - qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR); - return -EIO; + rc = -EIO; + break; default: qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ACTIVE); rc = 0; @@ -1442,10 +1424,10 @@ static inline int buf_in_between(int bufnr, int start, int count) * @bufnr: first buffer to process * @count: how many buffers are emptied */ -static void handle_inbound(struct qdio_q *q, unsigned int callflags, - int bufnr, int count) +static int handle_inbound(struct qdio_q *q, unsigned int callflags, + int bufnr, int count) { - int used, cc, diff; + int used, diff; if (!q->u.in.polling) goto set; @@ -1456,19 +1438,18 @@ static void handle_inbound(struct qdio_q *q, unsigned int callflags, q->u.in.polling = 0; q->u.in.ack_count = 0; goto set; - } else if (buf_in_between(q->last_move_ftc, bufnr, count)) { + } else if (buf_in_between(q->u.in.ack_start, bufnr, count)) { if (is_qebsm(q)) { - /* partial overwrite, just update last_move_ftc */ + /* partial overwrite, just update ack_start */ diff = add_buf(bufnr, count); - diff = sub_buf(diff, q->last_move_ftc); + diff = sub_buf(diff, q->u.in.ack_start); q->u.in.ack_count -= diff; if (q->u.in.ack_count <= 0) { q->u.in.polling = 0; q->u.in.ack_count = 0; - /* TODO: must we set last_move_ftc to something meaningful? */ goto set; } - q->last_move_ftc = add_buf(q->last_move_ftc, diff); + q->u.in.ack_start = add_buf(q->u.in.ack_start, diff); } else /* the only ACK will be deleted, so stop polling */ @@ -1483,13 +1464,11 @@ set: /* no need to signal as long as the adapter had free buffers */ if (used) - return; + return 0; - if (need_siga_in(q)) { - cc = qdio_siga_input(q); - if (cc) - q->qdio_error = cc; - } + if (need_siga_in(q)) + return qdio_siga_input(q); + return 0; } /** @@ -1499,11 +1478,11 @@ set: * @bufnr: first buffer to process * @count: how many buffers are filled */ -static void handle_outbound(struct qdio_q *q, unsigned int callflags, - int bufnr, int count) +static int handle_outbound(struct qdio_q *q, unsigned int callflags, + int bufnr, int count) { unsigned char state; - int used; + int used, rc = 0; qdio_perf_stat_inc(&perf_stats.outbound_handler); @@ -1518,27 +1497,26 @@ static void handle_outbound(struct qdio_q *q, unsigned int callflags, if (queue_type(q) == QDIO_IQDIO_QFMT) { if (multicast_outbound(q)) - qdio_kick_outbound_q(q); + rc = qdio_kick_outbound_q(q); else if ((q->irq_ptr->ssqd_desc.mmwc > 1) && (count > 1) && (count <= q->irq_ptr->ssqd_desc.mmwc)) { /* exploit enhanced SIGA */ q->u.out.use_enh_siga = 1; - qdio_kick_outbound_q(q); + rc = qdio_kick_outbound_q(q); } else { /* * One siga-w per buffer required for unicast * HiperSockets. */ q->u.out.use_enh_siga = 0; - while (count--) - qdio_kick_outbound_q(q); + while (count--) { + rc = qdio_kick_outbound_q(q); + if (rc) + goto out; + } } - - /* report CC=2 conditions synchronously */ - if (q->qdio_error) - __qdio_outbound_processing(q); goto out; } @@ -1550,14 +1528,14 @@ static void handle_outbound(struct qdio_q *q, unsigned int callflags, /* try to fast requeue buffers */ get_buf_state(q, prev_buf(bufnr), &state, 0); if (state != SLSB_CU_OUTPUT_PRIMED) - qdio_kick_outbound_q(q); + rc = qdio_kick_outbound_q(q); else { DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "fast-req"); qdio_perf_stat_inc(&perf_stats.fast_requeue); } out: - /* Fixme: could wait forever if called from process context */ tasklet_schedule(&q->tasklet); + return rc; } /** @@ -1596,14 +1574,12 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags, return -EBUSY; if (callflags & QDIO_FLAG_SYNC_INPUT) - handle_inbound(irq_ptr->input_qs[q_nr], callflags, bufnr, - count); + return handle_inbound(irq_ptr->input_qs[q_nr], + callflags, bufnr, count); else if (callflags & QDIO_FLAG_SYNC_OUTPUT) - handle_outbound(irq_ptr->output_qs[q_nr], callflags, bufnr, - count); - else - return -EINVAL; - return 0; + return handle_outbound(irq_ptr->output_qs[q_nr], + callflags, bufnr, count); + return -EINVAL; } EXPORT_SYMBOL_GPL(do_QDIO); diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index c08356b95bf5..18d54fc21ce9 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -117,7 +117,6 @@ static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr, q->mask = 1 << (31 - i); q->nr = i; q->handler = handler; - spin_lock_init(&q->lock); } static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr, diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index 8e90e147b746..c655d011a78d 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -31,6 +31,7 @@ /* list of thin interrupt input queues */ static LIST_HEAD(tiq_list); +DEFINE_MUTEX(tiq_list_lock); /* adapter local summary indicator */ static unsigned char *tiqdio_alsi; @@ -95,12 +96,11 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr) if (!css_qdio_omit_svs && irq_ptr->siga_flag.sync) css_qdio_omit_svs = 1; - for_each_input_queue(irq_ptr, q, i) { + mutex_lock(&tiq_list_lock); + for_each_input_queue(irq_ptr, q, i) list_add_rcu(&q->entry, &tiq_list); - synchronize_rcu(); - } + mutex_unlock(&tiq_list_lock); xchg(irq_ptr->dsci, 1); - tasklet_schedule(&tiqdio_tasklet); } /* @@ -118,7 +118,10 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr) /* if establish triggered an error */ if (!q || !q->entry.prev || !q->entry.next) continue; + + mutex_lock(&tiq_list_lock); list_del_rcu(&q->entry); + mutex_unlock(&tiq_list_lock); synchronize_rcu(); } } @@ -155,15 +158,15 @@ static void __tiqdio_inbound_processing(struct qdio_q *q) */ qdio_check_outbound_after_thinint(q); -again: if (!qdio_inbound_q_moved(q)) return; - qdio_kick_inbound_handler(q); + qdio_kick_handler(q); if (!tiqdio_inbound_q_done(q)) { qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop); - goto again; + if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) + tasklet_schedule(&q->tasklet); } qdio_stop_polling(q); @@ -173,7 +176,8 @@ again: */ if (!tiqdio_inbound_q_done(q)) { qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2); - goto again; + if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) + tasklet_schedule(&q->tasklet); } } @@ -366,10 +370,11 @@ void qdio_shutdown_thinint(struct qdio_irq *irq_ptr) void __exit tiqdio_unregister_thinints(void) { - tasklet_disable(&tiqdio_tasklet); + WARN_ON(!list_empty(&tiq_list)); if (tiqdio_alsi) { s390_unregister_adapter_interrupt(tiqdio_alsi, QDIO_AIRQ_ISC); isc_unregister(QDIO_AIRQ_ISC); } + tasklet_kill(&tiqdio_tasklet); } diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index cb22b97944b8..65b6a96afe6b 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -128,8 +128,7 @@ static void __zcrypt_increase_preference(struct zcrypt_device *zdev) if (l == zdev->list.prev) return; /* Move zdev behind l */ - list_del(&zdev->list); - list_add(&zdev->list, l); + list_move(&zdev->list, l); } /** @@ -157,8 +156,7 @@ static void __zcrypt_decrease_preference(struct zcrypt_device *zdev) if (l == zdev->list.next) return; /* Move zdev before l */ - list_del(&zdev->list); - list_add_tail(&zdev->list, l); + list_move_tail(&zdev->list, l); } static void zcrypt_device_release(struct kref *kref) diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c index e7a1e22e77ac..c20d4790258e 100644 --- a/drivers/s390/crypto/zcrypt_pcixcc.c +++ b/drivers/s390/crypto/zcrypt_pcixcc.c @@ -781,8 +781,7 @@ static long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev, /* Signal pending. */ ap_cancel_message(zdev->ap_dev, &ap_msg); out_free: - memset(ap_msg.message, 0x0, ap_msg.length); - kfree(ap_msg.message); + kzfree(ap_msg.message); return rc; } diff --git a/drivers/s390/ebcdic.c b/drivers/s390/ebcdic.c deleted file mode 100644 index 99c98da15473..000000000000 --- a/drivers/s390/ebcdic.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * arch/s390/kernel/ebcdic.c - * ECBDIC -> ASCII, ASCII -> ECBDIC conversion tables. - * - * S390 version - * Copyright (C) 1998 IBM Corporation - * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> - */ - -#include <asm/types.h> - -/* - * ASCII -> EBCDIC - */ -__u8 _ascebc[256] = -{ - /*00 NL SH SX EX ET NQ AK BL */ - 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, - /*08 BS HT LF VT FF CR SO SI */ - 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - /*10 DL D1 D2 D3 D4 NK SN EB */ - 0x10, 0x11, 0x12, 0x13, 0x3C, 0x15, 0x32, 0x26, - /*18 CN EM SB EC FS GS RS US */ - 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F, - /*20 SP ! " # $ % & ' */ - 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, - /*28 ( ) * + , - . / */ - 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61, - /*30 0 1 2 3 4 5 6 7 */ - 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, - /*38 8 9 : ; < = > ? */ - 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F, - /*40 @ A B C D E F G */ - 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, - /*48 H I J K L M N O */ - 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, - /*50 P Q R S T U V W */ - 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, - /*58 X Y Z [ \ ] ^ _ */ - 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D, - /*60 ` a b c d e f g */ - 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, - /*68 h i j k l m n o */ - 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, - /*70 p q r s t u v w */ - 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, - /*78 x y z { | } ~ DL */ - 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF -}; - -/* - * EBCDIC -> ASCII - */ -__u8 _ebcasc[256] = -{ - /* 0x00 NUL SOH STX ETX *SEL HT *RNL DEL */ - 0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F, - /* 0x08 -GE -SPS -RPT VT FF CR SO SI */ - 0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - /* 0x10 DLE DC1 DC2 DC3 -RES -NL BS -POC - -ENP ->LF */ - 0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07, - /* 0x18 CAN EM -UBS -CU1 -IFS -IGS -IRS -ITB - -IUS */ - 0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, - /* 0x20 -DS -SOS FS -WUS -BYP LF ETB ESC - -INP */ - 0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B, - /* 0x28 -SA -SFE -SM -CSP -MFA ENQ ACK BEL - -SW */ - 0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07, - /* 0x30 ---- ---- SYN -IR -PP -TRN -NBS EOT */ - 0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04, - /* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */ - 0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A, - /* 0x40 SP RSP ä ---- */ - 0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86, - /* 0x48 . < ( + | */ - 0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C, - /* 0x50 & ---- */ - 0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07, - /* 0x58 ß ! $ * ) ; */ - 0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA, - /* 0x60 - / ---- Ä ---- ---- ---- */ - 0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F, - /* 0x68 ---- , % _ > ? */ - 0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F, - /* 0x70 ---- ---- ---- ---- ---- ---- ---- */ - 0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, - /* 0x78 * ` : # @ ' = " */ - 0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22, - /* 0x80 * a b c d e f g */ - 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - /* 0x88 h i ---- ---- ---- */ - 0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1, - /* 0x90 ° j k l m n o p */ - 0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - /* 0x98 q r ---- ---- */ - 0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07, - /* 0xA0 ~ s t u v w x */ - 0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - /* 0xA8 y z ---- ---- ---- ---- */ - 0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07, - /* 0xB0 ^ ---- § ---- */ - 0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC, - /* 0xB8 ---- [ ] ---- ---- ---- ---- */ - 0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07, - /* 0xC0 { A B C D E F G */ - 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - /* 0xC8 H I ---- ö ---- */ - 0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07, - /* 0xD0 } J K L M N O P */ - 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, - /* 0xD8 Q R ---- ü */ - 0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98, - /* 0xE0 \ S T U V W X */ - 0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - /* 0xE8 Y Z ---- Ö ---- ---- ---- */ - 0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07, - /* 0xF0 0 1 2 3 4 5 6 7 */ - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - /* 0xF8 8 9 ---- ---- Ü ---- ---- ---- */ - 0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07 -}; - -/* - * EBCDIC (capitals) -> ASCII (small case) - */ -__u8 _ebcasc_reduce_case[256] = -{ - /* 0x00 NUL SOH STX ETX *SEL HT *RNL DEL */ - 0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F, - - /* 0x08 -GE -SPS -RPT VT FF CR SO SI */ - 0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - - /* 0x10 DLE DC1 DC2 DC3 -RES -NL BS -POC - -ENP ->LF */ - 0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07, - - /* 0x18 CAN EM -UBS -CU1 -IFS -IGS -IRS -ITB - -IUS */ - 0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, - - /* 0x20 -DS -SOS FS -WUS -BYP LF ETB ESC - -INP */ - 0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B, - - /* 0x28 -SA -SFE -SM -CSP -MFA ENQ ACK BEL - -SW */ - 0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07, - - /* 0x30 ---- ---- SYN -IR -PP -TRN -NBS EOT */ - 0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04, - - /* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */ - 0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A, - - /* 0x40 SP RSP ä ---- */ - 0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86, - - /* 0x48 . < ( + | */ - 0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C, - - /* 0x50 & ---- */ - 0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07, - - /* 0x58 ß ! $ * ) ; */ - 0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA, - - /* 0x60 - / ---- Ä ---- ---- ---- */ - 0x2D, 0x2F, 0x07, 0x84, 0x07, 0x07, 0x07, 0x8F, - - /* 0x68 ---- , % _ > ? */ - 0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F, - - /* 0x70 ---- ---- ---- ---- ---- ---- ---- */ - 0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, - - /* 0x78 * ` : # @ ' = " */ - 0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22, - - /* 0x80 * a b c d e f g */ - 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - - /* 0x88 h i ---- ---- ---- */ - 0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1, - - /* 0x90 ° j k l m n o p */ - 0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - - /* 0x98 q r ---- ---- */ - 0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07, - - /* 0xA0 ~ s t u v w x */ - 0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - - /* 0xA8 y z ---- ---- ---- ---- */ - 0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07, - - /* 0xB0 ^ ---- § ---- */ - 0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC, - - /* 0xB8 ---- [ ] ---- ---- ---- ---- */ - 0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07, - - /* 0xC0 { A B C D E F G */ - 0x7B, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - - /* 0xC8 H I ---- ö ---- */ - 0x68, 0x69, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07, - - /* 0xD0 } J K L M N O P */ - 0x7D, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, - - /* 0xD8 Q R ---- ü */ - 0x71, 0x72, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98, - - /* 0xE0 \ S T U V W X */ - 0x5C, 0xF6, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - - /* 0xE8 Y Z ---- Ö ---- ---- ---- */ - 0x79, 0x7A, 0xFD, 0x07, 0x94, 0x07, 0x07, 0x07, - - /* 0xF0 0 1 2 3 4 5 6 7 */ - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - - /* 0xF8 8 9 ---- ---- Ü ---- ---- ---- */ - 0x38, 0x39, 0x07, 0x07, 0x81, 0x07, 0x07, 0x07 -}; diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile index 6382c04d2bdf..96eddb3b1d08 100644 --- a/drivers/s390/net/Makefile +++ b/drivers/s390/net/Makefile @@ -8,7 +8,7 @@ obj-$(CONFIG_NETIUCV) += netiucv.o fsm.o obj-$(CONFIG_SMSGIUCV) += smsgiucv.o obj-$(CONFIG_LCS) += lcs.o cu3088.o obj-$(CONFIG_CLAW) += claw.o cu3088.o -qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o qeth_core_offl.o +qeth-y += qeth_core_sys.o qeth_core_main.o qeth_core_mpc.o obj-$(CONFIG_QETH) += qeth.o qeth_l2-y += qeth_l2_main.o obj-$(CONFIG_QETH_L2) += qeth_l2.o diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index f5e618562c5f..30a43cc79e76 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -60,6 +60,9 @@ * 1.25 Added Packing support * 1.5 */ + +#define KMSG_COMPONENT "claw" + #include <asm/ccwdev.h> #include <asm/ccwgroup.h> #include <asm/debug.h> @@ -94,7 +97,7 @@ CLAW uses the s390dbf file system see claw_trace and claw_setup */ - +static char version[] __initdata = "CLAW driver"; static char debug_buffer[255]; /** * Debug Facility Stuff @@ -206,20 +209,30 @@ static struct net_device_stats *claw_stats(struct net_device *dev); static int pages_to_order_of_mag(int num_of_pages); static struct sk_buff *claw_pack_skb(struct claw_privbk *privptr); /* sysfs Functions */ -static ssize_t claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_hname_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_hname_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_hname_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_adname_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_adname_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_adname_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_apname_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_apname_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_apname_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_wbuff_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_wbuff_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_wbuff_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); -static ssize_t claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf); -static ssize_t claw_rbuff_write(struct device *dev, struct device_attribute *attr, +static ssize_t claw_rbuff_show(struct device *dev, + struct device_attribute *attr, char *buf); +static ssize_t claw_rbuff_write(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); static int claw_add_files(struct device *dev); static void claw_remove_files(struct device *dev); @@ -298,8 +311,8 @@ claw_probe(struct ccwgroup_device *cgdev) if (rc) { probe_error(cgdev); put_device(&cgdev->dev); - printk(KERN_WARNING "add_files failed %s %s Exit Line %d \n", - dev_name(&cgdev->cdev[0]->dev), __func__, __LINE__); + dev_err(&cgdev->dev, "Creating the /proc files for a new" + " CLAW device failed\n"); CLAW_DBF_TEXT_(2, setup, "probex%d", rc); return rc; } @@ -335,6 +348,8 @@ claw_tx(struct sk_buff *skb, struct net_device *dev) rc=claw_hw_tx( skb, dev, 1 ); spin_unlock_irqrestore(get_ccwdev_lock(p_ch->cdev), saveflags); CLAW_DBF_TEXT_(4, trace, "clawtx%d", rc); + if (rc) + rc = NETDEV_TX_BUSY; return rc; } /* end of claw_tx */ @@ -496,7 +511,8 @@ claw_open(struct net_device *dev) ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) || (((privptr->channel[READ].flag | privptr->channel[WRITE].flag) & CLAW_TIMER) != 0x00)) { - printk(KERN_INFO "%s: remote side is not ready\n", dev->name); + dev_info(&privptr->channel[READ].cdev->dev, + "%s: remote side is not ready\n", dev->name); CLAW_DBF_TEXT(2, trace, "notrdy"); for ( i = 0; i < 2; i++) { @@ -582,10 +598,9 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4, trace, "clawirq"); /* Bypass all 'unsolicited interrupts' */ if (!cdev->dev.driver_data) { - printk(KERN_WARNING "claw: unsolicited interrupt for device:" - "%s received c-%02x d-%02x\n", - dev_name(&cdev->dev), irb->scsw.cmd.cstat, - irb->scsw.cmd.dstat); + dev_warn(&cdev->dev, "An uninitialized CLAW device received an" + " IRQ, c-%02x d-%02x\n", + irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); CLAW_DBF_TEXT(2, trace, "badirq"); return; } @@ -597,8 +612,7 @@ claw_irq_handler(struct ccw_device *cdev, else if (privptr->channel[WRITE].cdev == cdev) p_ch = &privptr->channel[WRITE]; else { - printk(KERN_WARNING "claw: Can't determine channel for " - "interrupt, device %s\n", dev_name(&cdev->dev)); + dev_warn(&cdev->dev, "The device is not a CLAW device\n"); CLAW_DBF_TEXT(2, trace, "badchan"); return; } @@ -612,7 +626,8 @@ claw_irq_handler(struct ccw_device *cdev, /* Check for good subchannel return code, otherwise info message */ if (irb->scsw.cmd.cstat && !(irb->scsw.cmd.cstat & SCHN_STAT_PCI)) { - printk(KERN_INFO "%s: subchannel check for device: %04x -" + dev_info(&cdev->dev, + "%s: subchannel check for device: %04x -" " Sch Stat %02x Dev Stat %02x CPA - %04x\n", dev->name, p_ch->devno, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat, @@ -651,7 +666,7 @@ claw_irq_handler(struct ccw_device *cdev, wake_up(&p_ch->wait); /* wake claw_open (READ)*/ } else if (p_ch->flag == CLAW_WRITE) { p_ch->claw_state = CLAW_START_WRITE; - /* send SYSTEM_VALIDATE */ + /* send SYSTEM_VALIDATE */ claw_strt_read(dev, LOCK_NO); claw_send_control(dev, SYSTEM_VALIDATE_REQUEST, @@ -659,10 +674,9 @@ claw_irq_handler(struct ccw_device *cdev, p_env->host_name, p_env->adapter_name); } else { - printk(KERN_WARNING "claw: unsolicited " - "interrupt for device:" - "%s received c-%02x d-%02x\n", - dev_name(&cdev->dev), + dev_warn(&cdev->dev, "The CLAW device received" + " an unexpected IRQ, " + "c-%02x d-%02x\n", irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); return; @@ -677,8 +691,8 @@ claw_irq_handler(struct ccw_device *cdev, (p_ch->irb->ecw[0] & 0x40) == 0x40 || (p_ch->irb->ecw[0]) == 0) { privptr->stats.rx_errors++; - printk(KERN_INFO "%s: Restart is " - "required after remote " + dev_info(&cdev->dev, + "%s: Restart is required after remote " "side recovers \n", dev->name); } @@ -713,11 +727,13 @@ claw_irq_handler(struct ccw_device *cdev, return; case CLAW_START_WRITE: if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { - printk(KERN_INFO "%s: Unit Check Occured in " + dev_info(&cdev->dev, + "%s: Unit Check Occured in " "write channel\n", dev->name); clear_bit(0, (void *)&p_ch->IO_active); if (p_ch->irb->ecw[0] & 0x80) { - printk(KERN_INFO "%s: Resetting Event " + dev_info(&cdev->dev, + "%s: Resetting Event " "occurred:\n", dev->name); init_timer(&p_ch->timer); p_ch->timer.function = @@ -725,7 +741,8 @@ claw_irq_handler(struct ccw_device *cdev, p_ch->timer.data = (unsigned long)p_ch; p_ch->timer.expires = jiffies + 10*HZ; add_timer(&p_ch->timer); - printk(KERN_INFO "%s: write connection " + dev_info(&cdev->dev, + "%s: write connection " "restarting\n", dev->name); } CLAW_DBF_TEXT(4, trace, "rstrtwrt"); @@ -733,9 +750,10 @@ claw_irq_handler(struct ccw_device *cdev, } if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) { clear_bit(0, (void *)&p_ch->IO_active); - printk(KERN_INFO "%s: Unit Exception " - "Occured in write channel\n", - dev->name); + dev_info(&cdev->dev, + "%s: Unit Exception " + "occurred in write channel\n", + dev->name); } if (!((p_ch->irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) || (p_ch->irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) || @@ -757,8 +775,9 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4, trace, "StWtExit"); return; default: - printk(KERN_WARNING "%s: wrong selection code - irq " - "state=%d\n", dev->name, p_ch->claw_state); + dev_warn(&cdev->dev, + "The CLAW device for %s received an unexpected IRQ\n", + dev->name); CLAW_DBF_TEXT(2, trace, "badIRQ"); return; } @@ -910,8 +929,10 @@ claw_release(struct net_device *dev) if (((privptr->channel[READ].last_dstat | privptr->channel[WRITE].last_dstat) & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) != 0x00) { - printk(KERN_WARNING "%s: channel problems during close - " - "read: %02x - write: %02x\n", + dev_warn(&privptr->channel[READ].cdev->dev, + "Deactivating %s completed with incorrect" + " subchannel status " + "(read %02x, write %02x)\n", dev->name, privptr->channel[READ].last_dstat, privptr->channel[WRITE].last_dstat); @@ -1012,7 +1033,7 @@ static int pages_to_order_of_mag(int num_of_pages) { int order_of_mag=1; /* assume 2 pages */ - int nump=2; + int nump; CLAW_DBF_TEXT_(5, trace, "pages%d", num_of_pages); if (num_of_pages == 1) {return 0; } /* magnitude of 0 = 1 page */ @@ -1076,8 +1097,8 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first, } if ( privptr-> p_read_active_first ==NULL ) { - privptr-> p_read_active_first= p_first; /* set new first */ - privptr-> p_read_active_last = p_last; /* set new last */ + privptr->p_read_active_first = p_first; /* set new first */ + privptr->p_read_active_last = p_last; /* set new last */ } else { @@ -1113,7 +1134,7 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first, privptr->p_read_active_last->r_TIC_2.cda= (__u32)__pa(&p_first->read); } - /* chain in new set of blocks */ + /* chain in new set of blocks */ privptr->p_read_active_last->next = p_first; privptr->p_read_active_last=p_last; } /* end of if ( privptr-> p_read_active_first ==NULL) */ @@ -1135,21 +1156,18 @@ ccw_check_return_code(struct ccw_device *cdev, int return_code) case -EBUSY: /* BUSY is a transient state no action needed */ break; case -ENODEV: - printk(KERN_EMERG "%s: Missing device called " - "for IO ENODEV\n", dev_name(&cdev->dev)); - break; - case -EIO: - printk(KERN_EMERG "%s: Status pending... EIO \n", - dev_name(&cdev->dev)); + dev_err(&cdev->dev, "The remote channel adapter is not" + " available\n"); break; case -EINVAL: - printk(KERN_EMERG "%s: Invalid Dev State EINVAL \n", - dev_name(&cdev->dev)); + dev_err(&cdev->dev, + "The status of the remote channel adapter" + " is not valid\n"); break; default: - printk(KERN_EMERG "%s: Unknown error in " - "Do_IO %d\n", dev_name(&cdev->dev), - return_code); + dev_err(&cdev->dev, "The common device layer" + " returned error code %d\n", + return_code); } } CLAW_DBF_TEXT(4, trace, "ccwret"); @@ -1163,42 +1181,37 @@ static void ccw_check_unit_check(struct chbk * p_ch, unsigned char sense ) { struct net_device *ndev = p_ch->ndev; + struct device *dev = &p_ch->cdev->dev; CLAW_DBF_TEXT(4, trace, "unitchek"); - printk(KERN_INFO "%s: Unit Check with sense byte:0x%04x\n", - ndev->name, sense); - - if (sense & 0x40) { - if (sense & 0x01) { - printk(KERN_WARNING "%s: Interface disconnect or " - "Selective reset " - "occurred (remote side)\n", ndev->name); - } - else { - printk(KERN_WARNING "%s: System reset occured" - " (remote side)\n", ndev->name); - } - } - else if (sense & 0x20) { - if (sense & 0x04) { - printk(KERN_WARNING "%s: Data-streaming " - "timeout)\n", ndev->name); - } - else { - printk(KERN_WARNING "%s: Data-transfer parity" - " error\n", ndev->name); - } - } - else if (sense & 0x10) { - if (sense & 0x20) { - printk(KERN_WARNING "%s: Hardware malfunction " - "(remote side)\n", ndev->name); - } - else { - printk(KERN_WARNING "%s: read-data parity error " - "(remote side)\n", ndev->name); - } - } + dev_warn(dev, "The communication peer of %s disconnected\n", + ndev->name); + + if (sense & 0x40) { + if (sense & 0x01) { + dev_warn(dev, "The remote channel adapter for" + " %s has been reset\n", + ndev->name); + } + } else if (sense & 0x20) { + if (sense & 0x04) { + dev_warn(dev, "A data streaming timeout occurred" + " for %s\n", + ndev->name); + } else if (sense & 0x10) { + dev_warn(dev, "The remote channel adapter for %s" + " is faulty\n", + ndev->name); + } else { + dev_warn(dev, "A data transfer parity error occurred" + " for %s\n", + ndev->name); + } + } else if (sense & 0x10) { + dev_warn(dev, "A read data parity error occurred" + " for %s\n", + ndev->name); + } } /* end of ccw_check_unit_check */ @@ -1235,7 +1248,7 @@ find_link(struct net_device *dev, char *host_name, char *ws_name ) break; } - return 0; + return rc; } /* end of find_link */ /*-------------------------------------------------------------------* @@ -1347,7 +1360,10 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) privptr->p_write_free_chain=p_this_ccw->next; p_this_ccw->next=NULL; --privptr->write_free_count; /* -1 */ - bytesInThisBuffer=len_of_data; + if (len_of_data >= privptr->p_env->write_size) + bytesInThisBuffer = privptr->p_env->write_size; + else + bytesInThisBuffer = len_of_data; memcpy( p_this_ccw->p_buffer,pDataAddress, bytesInThisBuffer); len_of_data-=bytesInThisBuffer; pDataAddress+=(unsigned long)bytesInThisBuffer; @@ -1375,7 +1391,7 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid) */ if (p_first_ccw!=NULL) { - /* setup ending ccw sequence for this segment */ + /* setup ending ccw sequence for this segment */ pEnd=privptr->p_end_ccw; if (pEnd->write1) { pEnd->write1=0x00; /* second end ccw is now active */ @@ -1697,10 +1713,11 @@ init_ccw_bk(struct net_device *dev) p_buf-> w_TIC_1.flags = 0; p_buf-> w_TIC_1.count = 0; - if (((unsigned long)p_buff+privptr->p_env->write_size) >= + if (((unsigned long)p_buff + + privptr->p_env->write_size) >= ((unsigned long)(p_buff+2* - (privptr->p_env->write_size) -1) & PAGE_MASK)) { - p_buff= p_buff+privptr->p_env->write_size; + (privptr->p_env->write_size) - 1) & PAGE_MASK)) { + p_buff = p_buff+privptr->p_env->write_size; } } } @@ -1840,15 +1857,16 @@ init_ccw_bk(struct net_device *dev) p_buf->header.opcode=0xff; p_buf->header.flag=CLAW_PENDING; - if (((unsigned long)p_buff+privptr->p_env->read_size) >= - ((unsigned long)(p_buff+2*(privptr->p_env->read_size) -1) - & PAGE_MASK) ) { + if (((unsigned long)p_buff+privptr->p_env->read_size) >= + ((unsigned long)(p_buff+2*(privptr->p_env->read_size) + -1) + & PAGE_MASK)) { p_buff= p_buff+privptr->p_env->read_size; } else { p_buff= (void *)((unsigned long) - (p_buff+2*(privptr->p_env->read_size) -1) + (p_buff+2*(privptr->p_env->read_size)-1) & PAGE_MASK) ; } } /* for read_buffers */ @@ -1856,24 +1874,28 @@ init_ccw_bk(struct net_device *dev) else { /* read Size >= PAGE_SIZE */ for (i=0 ; i< privptr->p_env->read_buffers ; i++) { p_buff = (void *)__get_free_pages(__GFP_DMA, - (int)pages_to_order_of_mag(privptr->p_buff_pages_perread) ); + (int)pages_to_order_of_mag( + privptr->p_buff_pages_perread)); if (p_buff==NULL) { free_pages((unsigned long)privptr->p_buff_ccw, - (int)pages_to_order_of_mag(privptr->p_buff_ccw_num)); + (int)pages_to_order_of_mag(privptr-> + p_buff_ccw_num)); /* free the write pages */ p_buf=privptr->p_buff_write; while (p_buf!=NULL) { - free_pages((unsigned long)p_buf->p_buffer, - (int)pages_to_order_of_mag( - privptr->p_buff_pages_perwrite )); + free_pages( + (unsigned long)p_buf->p_buffer, + (int)pages_to_order_of_mag( + privptr->p_buff_pages_perwrite)); p_buf=p_buf->next; } /* free any read pages already alloc */ p_buf=privptr->p_buff_read; while (p_buf!=NULL) { - free_pages((unsigned long)p_buf->p_buffer, - (int)pages_to_order_of_mag( - privptr->p_buff_pages_perread )); + free_pages( + (unsigned long)p_buf->p_buffer, + (int)pages_to_order_of_mag( + privptr->p_buff_pages_perread)); p_buf=p_buf->next; } privptr->p_buff_ccw=NULL; @@ -2003,7 +2025,7 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) tdev = &privptr->channel[READ].cdev->dev; memcpy( &temp_host_name, p_env->host_name, 8); memcpy( &temp_ws_name, p_env->adapter_name , 8); - printk(KERN_INFO "%s: CLAW device %.8s: " + dev_info(tdev, "%s: CLAW device %.8s: " "Received Control Packet\n", dev->name, temp_ws_name); if (privptr->release_pend==1) { @@ -2022,32 +2044,30 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) if (p_ctlbk->version != CLAW_VERSION_ID) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_WRONG_VERSION); - printk("%s: %d is wrong version id. " - "Expected %d\n", - dev->name, p_ctlbk->version, - CLAW_VERSION_ID); + dev_warn(tdev, "The communication peer of %s" + " uses an incorrect API version %d\n", + dev->name, p_ctlbk->version); } p_sysval = (struct sysval *)&(p_ctlbk->data); - printk("%s: Recv Sys Validate Request: " - "Vers=%d,link_id=%d,Corr=%d,WS name=%." - "8s,Host name=%.8s\n", - dev->name, p_ctlbk->version, - p_ctlbk->linkid, - p_ctlbk->correlator, - p_sysval->WS_name, - p_sysval->host_name); + dev_info(tdev, "%s: Recv Sys Validate Request: " + "Vers=%d,link_id=%d,Corr=%d,WS name=%.8s," + "Host name=%.8s\n", + dev->name, p_ctlbk->version, + p_ctlbk->linkid, + p_ctlbk->correlator, + p_sysval->WS_name, + p_sysval->host_name); if (memcmp(temp_host_name, p_sysval->host_name, 8)) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_NAME_MISMATCH); CLAW_DBF_TEXT(2, setup, "HSTBAD"); CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->host_name); CLAW_DBF_TEXT_(2, setup, "%s", temp_host_name); - printk(KERN_INFO "%s: Host name mismatch\n", - dev->name); - printk(KERN_INFO "%s: Received :%s: " - "expected :%s: \n", - dev->name, + dev_warn(tdev, + "Host name %s for %s does not match the" + " remote adapter name %s\n", p_sysval->host_name, + dev->name, temp_host_name); } if (memcmp(temp_ws_name, p_sysval->WS_name, 8)) { @@ -2056,35 +2076,38 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) CLAW_DBF_TEXT(2, setup, "WSNBAD"); CLAW_DBF_TEXT_(2, setup, "%s", p_sysval->WS_name); CLAW_DBF_TEXT_(2, setup, "%s", temp_ws_name); - printk(KERN_INFO "%s: WS name mismatch\n", - dev->name); - printk(KERN_INFO "%s: Received :%s: " - "expected :%s: \n", - dev->name, - p_sysval->WS_name, - temp_ws_name); + dev_warn(tdev, "Adapter name %s for %s does not match" + " the remote host name %s\n", + p_sysval->WS_name, + dev->name, + temp_ws_name); } if ((p_sysval->write_frame_size < p_env->write_size) && (p_env->packing == 0)) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_HOST_RCV_TOO_SMALL); - printk(KERN_INFO "%s: host write size is too " - "small\n", dev->name); + dev_warn(tdev, + "The local write buffer is smaller than the" + " remote read buffer\n"); CLAW_DBF_TEXT(2, setup, "wrtszbad"); } if ((p_sysval->read_frame_size < p_env->read_size) && (p_env->packing == 0)) { claw_snd_sys_validate_rsp(dev, p_ctlbk, CLAW_RC_HOST_RCV_TOO_SMALL); - printk(KERN_INFO "%s: host read size is too " - "small\n", dev->name); + dev_warn(tdev, + "The local read buffer is smaller than the" + " remote write buffer\n"); CLAW_DBF_TEXT(2, setup, "rdsizbad"); } claw_snd_sys_validate_rsp(dev, p_ctlbk, 0); - printk(KERN_INFO "%s: CLAW device %.8s: System validate " - "completed.\n", dev->name, temp_ws_name); - printk("%s: sys Validate Rsize:%d Wsize:%d\n", dev->name, - p_sysval->read_frame_size, p_sysval->write_frame_size); + dev_info(tdev, + "CLAW device %.8s: System validate" + " completed.\n", temp_ws_name); + dev_info(tdev, + "%s: sys Validate Rsize:%d Wsize:%d\n", + dev->name, p_sysval->read_frame_size, + p_sysval->write_frame_size); privptr->system_validate_comp = 1; if (strncmp(p_env->api_type, WS_APPL_NAME_PACKED, 6) == 0) p_env->packing = PACKING_ASK; @@ -2092,8 +2115,10 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) break; case SYSTEM_VALIDATE_RESPONSE: p_sysval = (struct sysval *)&(p_ctlbk->data); - printk("%s: Recv Sys Validate Resp: Vers=%d,Corr=%d,RC=%d," - "WS name=%.8s,Host name=%.8s\n", + dev_info(tdev, + "Settings for %s validated (version=%d, " + "remote device=%d, rc=%d, adapter name=%.8s, " + "host name=%.8s)\n", dev->name, p_ctlbk->version, p_ctlbk->correlator, @@ -2102,41 +2127,39 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_sysval->host_name); switch (p_ctlbk->rc) { case 0: - printk(KERN_INFO "%s: CLAW device " - "%.8s: System validate " - "completed.\n", - dev->name, temp_ws_name); + dev_info(tdev, "%s: CLAW device " + "%.8s: System validate completed.\n", + dev->name, temp_ws_name); if (privptr->system_validate_comp == 0) claw_strt_conn_req(dev); privptr->system_validate_comp = 1; break; case CLAW_RC_NAME_MISMATCH: - printk(KERN_INFO "%s: Sys Validate " - "Resp : Host, WS name is " - "mismatch\n", - dev->name); + dev_warn(tdev, "Validating %s failed because of" + " a host or adapter name mismatch\n", + dev->name); break; case CLAW_RC_WRONG_VERSION: - printk(KERN_INFO "%s: Sys Validate " - "Resp : Wrong version\n", + dev_warn(tdev, "Validating %s failed because of a" + " version conflict\n", dev->name); break; case CLAW_RC_HOST_RCV_TOO_SMALL: - printk(KERN_INFO "%s: Sys Validate " - "Resp : bad frame size\n", + dev_warn(tdev, "Validating %s failed because of a" + " frame size conflict\n", dev->name); break; default: - printk(KERN_INFO "%s: Sys Validate " - "error code=%d \n", - dev->name, p_ctlbk->rc); + dev_warn(tdev, "The communication peer of %s rejected" + " the connection\n", + dev->name); break; } break; case CONNECTION_REQUEST: p_connect = (struct conncmd *)&(p_ctlbk->data); - printk(KERN_INFO "%s: Recv Conn Req: Vers=%d,link_id=%d," + dev_info(tdev, "%s: Recv Conn Req: Vers=%d,link_id=%d," "Corr=%d,HOST appl=%.8s,WS appl=%.8s\n", dev->name, p_ctlbk->version, @@ -2146,21 +2169,21 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_connect->WS_name); if (privptr->active_link_ID != 0) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Req error : " - "already logical link is active \n", + dev_info(tdev, "%s rejected a connection request" + " because it is already active\n", dev->name); } if (p_ctlbk->linkid != 1) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Req error : " - "req logical link id is not 1\n", + dev_info(tdev, "%s rejected a request to open multiple" + " connections\n", dev->name); } rc = find_link(dev, p_connect->host_name, p_connect->WS_name); if (rc != 0) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Resp error: " - "req appl name does not match\n", + dev_info(tdev, "%s rejected a connection request" + " because of a type mismatch\n", dev->name); } claw_send_control(dev, @@ -2172,7 +2195,7 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_env->packing = PACK_SEND; claw_snd_conn_req(dev, 0); } - printk(KERN_INFO "%s: CLAW device %.8s: Connection " + dev_info(tdev, "%s: CLAW device %.8s: Connection " "completed link_id=%d.\n", dev->name, temp_ws_name, p_ctlbk->linkid); @@ -2182,7 +2205,7 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) break; case CONNECTION_RESPONSE: p_connect = (struct conncmd *)&(p_ctlbk->data); - printk(KERN_INFO "%s: Revc Conn Resp: Vers=%d,link_id=%d," + dev_info(tdev, "%s: Recv Conn Resp: Vers=%d,link_id=%d," "Corr=%d,RC=%d,Host appl=%.8s, WS appl=%.8s\n", dev->name, p_ctlbk->version, @@ -2193,16 +2216,18 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) p_connect->WS_name); if (p_ctlbk->rc != 0) { - printk(KERN_INFO "%s: Conn Resp error: rc=%d \n", - dev->name, p_ctlbk->rc); + dev_warn(tdev, "The communication peer of %s rejected" + " a connection request\n", + dev->name); return 1; } rc = find_link(dev, p_connect->host_name, p_connect->WS_name); if (rc != 0) { claw_snd_disc(dev, p_ctlbk); - printk(KERN_INFO "%s: Conn Resp error: " - "req appl name does not match\n", + dev_warn(tdev, "The communication peer of %s" + " rejected a connection " + "request because of a type mismatch\n", dev->name); } /* should be until CONNECTION_CONFIRM */ @@ -2210,7 +2235,8 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) break; case CONNECTION_CONFIRM: p_connect = (struct conncmd *)&(p_ctlbk->data); - printk(KERN_INFO "%s: Recv Conn Confirm:Vers=%d,link_id=%d," + dev_info(tdev, + "%s: Recv Conn Confirm:Vers=%d,link_id=%d," "Corr=%d,Host appl=%.8s,WS appl=%.8s\n", dev->name, p_ctlbk->version, @@ -2221,21 +2247,21 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) if (p_ctlbk->linkid == -(privptr->active_link_ID)) { privptr->active_link_ID = p_ctlbk->linkid; if (p_env->packing > PACKING_ASK) { - printk(KERN_INFO "%s: Confirmed Now packing\n", - dev->name); + dev_info(tdev, + "%s: Confirmed Now packing\n", dev->name); p_env->packing = DO_PACKED; } p_ch = &privptr->channel[WRITE]; wake_up(&p_ch->wait); } else { - printk(KERN_INFO "%s: Conn confirm: " - "unexpected linkid=%d \n", + dev_warn(tdev, "Activating %s failed because of" + " an incorrect link ID=%d\n", dev->name, p_ctlbk->linkid); claw_snd_disc(dev, p_ctlbk); } break; case DISCONNECT: - printk(KERN_INFO "%s: Disconnect: " + dev_info(tdev, "%s: Disconnect: " "Vers=%d,link_id=%d,Corr=%d\n", dev->name, p_ctlbk->version, p_ctlbk->linkid, p_ctlbk->correlator); @@ -2247,12 +2273,13 @@ claw_process_control( struct net_device *dev, struct ccwbk * p_ccw) privptr->active_link_ID = 0; break; case CLAW_ERROR: - printk(KERN_INFO "%s: CLAW ERROR detected\n", + dev_warn(tdev, "The communication peer of %s failed\n", dev->name); break; default: - printk(KERN_INFO "%s: Unexpected command code=%d \n", - dev->name, p_ctlbk->command); + dev_warn(tdev, "The communication peer of %s sent" + " an unknown command code\n", + dev->name); break; } @@ -2294,12 +2321,14 @@ claw_send_control(struct net_device *dev, __u8 type, __u8 link, memcpy(&p_sysval->host_name, local_name, 8); memcpy(&p_sysval->WS_name, remote_name, 8); if (privptr->p_env->packing > 0) { - p_sysval->read_frame_size=DEF_PACK_BUFSIZE; - p_sysval->write_frame_size=DEF_PACK_BUFSIZE; + p_sysval->read_frame_size = DEF_PACK_BUFSIZE; + p_sysval->write_frame_size = DEF_PACK_BUFSIZE; } else { /* how big is the biggest group of packets */ - p_sysval->read_frame_size=privptr->p_env->read_size; - p_sysval->write_frame_size=privptr->p_env->write_size; + p_sysval->read_frame_size = + privptr->p_env->read_size; + p_sysval->write_frame_size = + privptr->p_env->write_size; } memset(&p_sysval->reserved, 0x00, 4); break; @@ -2485,7 +2514,6 @@ unpack_read(struct net_device *dev ) p_dev = &privptr->channel[READ].cdev->dev; p_env = privptr->p_env; p_this_ccw=privptr->p_read_active_first; - i=0; while (p_this_ccw!=NULL && p_this_ccw->header.flag!=CLAW_PENDING) { pack_off = 0; p = 0; @@ -2511,8 +2539,10 @@ unpack_read(struct net_device *dev ) mtc_this_frm=1; if (p_this_ccw->header.length!= privptr->p_env->read_size ) { - printk(KERN_INFO " %s: Invalid frame detected " - "length is %02x\n" , + dev_warn(p_dev, + "The communication peer of %s" + " sent a faulty" + " frame of length %02x\n", dev->name, p_this_ccw->header.length); } } @@ -2544,7 +2574,7 @@ unpack_next: goto NextFrame; p_packd = p_this_ccw->p_buffer+pack_off; p_packh = (struct clawph *) p_packd; - if ((p_packh->len == 0) || /* all done with this frame? */ + if ((p_packh->len == 0) || /* done with this frame? */ (p_packh->flag != 0)) goto NextFrame; bytes_to_mov = p_packh->len; @@ -2594,9 +2624,9 @@ unpack_next: netif_rx(skb); } else { + dev_info(p_dev, "Allocating a buffer for" + " incoming data failed\n"); privptr->stats.rx_dropped++; - printk(KERN_WARNING "%s: %s() low on memory\n", - dev->name,__func__); } privptr->mtc_offset=0; privptr->mtc_logical_link=-1; @@ -2720,8 +2750,8 @@ claw_strt_out_IO( struct net_device *dev ) if (test_and_set_bit(0, (void *)&p_ch->IO_active) == 0) { parm = (unsigned long) p_ch; CLAW_DBF_TEXT(2, trace, "StWrtIO"); - rc = ccw_device_start (p_ch->cdev,&p_first_ccw->write, parm, - 0xff, 0); + rc = ccw_device_start(p_ch->cdev, &p_first_ccw->write, parm, + 0xff, 0); if (rc != 0) { ccw_check_return_code(p_ch->cdev, rc); } @@ -2816,22 +2846,26 @@ claw_free_netdevice(struct net_device * dev, int free_dev) * Initialize everything of the net device except the name and the * channel structs. */ +static const struct net_device_ops claw_netdev_ops = { + .ndo_open = claw_open, + .ndo_stop = claw_release, + .ndo_get_stats = claw_stats, + .ndo_start_xmit = claw_tx, + .ndo_change_mtu = claw_change_mtu, +}; + static void claw_init_netdevice(struct net_device * dev) { CLAW_DBF_TEXT(2, setup, "init_dev"); CLAW_DBF_TEXT_(2, setup, "%s", dev->name); dev->mtu = CLAW_DEFAULT_MTU_SIZE; - dev->hard_start_xmit = claw_tx; - dev->open = claw_open; - dev->stop = claw_release; - dev->get_stats = claw_stats; - dev->change_mtu = claw_change_mtu; dev->hard_header_len = 0; dev->addr_len = 0; dev->type = ARPHRD_SLIP; dev->tx_queue_len = 1300; dev->flags = IFF_POINTOPOINT | IFF_NOARP; + dev->netdev_ops = &claw_netdev_ops; CLAW_DBF_TEXT(2, setup, "initok"); return; } @@ -2880,8 +2914,8 @@ claw_new_device(struct ccwgroup_device *cgdev) int ret; struct ccw_dev_id dev_id; - printk(KERN_INFO "claw: add for %s\n", - dev_name(&cgdev->cdev[READ]->dev)); + dev_info(&cgdev->dev, "add for %s\n", + dev_name(&cgdev->cdev[READ]->dev)); CLAW_DBF_TEXT(2, setup, "new_dev"); privptr = cgdev->dev.driver_data; cgdev->cdev[READ]->dev.driver_data = privptr; @@ -2897,29 +2931,28 @@ claw_new_device(struct ccwgroup_device *cgdev) if (ret == 0) ret = add_channel(cgdev->cdev[1],1,privptr); if (ret != 0) { - printk(KERN_WARNING - "add channel failed with ret = %d\n", ret); + dev_warn(&cgdev->dev, "Creating a CLAW group device" + " failed with error code %d\n", ret); goto out; } ret = ccw_device_set_online(cgdev->cdev[READ]); if (ret != 0) { - printk(KERN_WARNING - "claw: ccw_device_set_online %s READ failed " - "with ret = %d\n", dev_name(&cgdev->cdev[READ]->dev), - ret); + dev_warn(&cgdev->dev, + "Setting the read subchannel online" + " failed with error code %d\n", ret); goto out; } ret = ccw_device_set_online(cgdev->cdev[WRITE]); if (ret != 0) { - printk(KERN_WARNING - "claw: ccw_device_set_online %s WRITE failed " - "with ret = %d\n", dev_name(&cgdev->cdev[WRITE]->dev), - ret); + dev_warn(&cgdev->dev, + "Setting the write subchannel online " + "failed with error code %d\n", ret); goto out; } dev = alloc_netdev(0,"claw%d",claw_init_netdevice); if (!dev) { - printk(KERN_WARNING "%s:alloc_netdev failed\n",__func__); + dev_warn(&cgdev->dev, + "Activating the CLAW device failed\n"); goto out; } dev->ml_priv = privptr; @@ -2947,13 +2980,13 @@ claw_new_device(struct ccwgroup_device *cgdev) privptr->channel[WRITE].ndev = dev; privptr->p_env->ndev = dev; - printk(KERN_INFO "%s:readsize=%d writesize=%d " + dev_info(&cgdev->dev, "%s:readsize=%d writesize=%d " "readbuffer=%d writebuffer=%d read=0x%04x write=0x%04x\n", dev->name, p_env->read_size, p_env->write_size, p_env->read_buffers, p_env->write_buffers, p_env->devno[READ], p_env->devno[WRITE]); - printk(KERN_INFO "%s:host_name:%.8s, adapter_name " + dev_info(&cgdev->dev, "%s:host_name:%.8s, adapter_name " ":%.8s api_type: %.8s\n", dev->name, p_env->host_name, p_env->adapter_name , p_env->api_type); @@ -2997,8 +3030,8 @@ claw_shutdown_device(struct ccwgroup_device *cgdev) ndev = priv->channel[READ].ndev; if (ndev) { /* Close the device */ - printk(KERN_INFO - "%s: shuting down \n",ndev->name); + dev_info(&cgdev->dev, "%s: shutting down \n", + ndev->name); if (ndev->flags & IFF_RUNNING) ret = claw_release(ndev); ndev->flags &=~IFF_RUNNING; @@ -3023,8 +3056,7 @@ claw_remove_device(struct ccwgroup_device *cgdev) CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev)); priv = cgdev->dev.driver_data; BUG_ON(!priv); - printk(KERN_INFO "claw: %s() called %s will be removed.\n", - __func__, dev_name(&cgdev->cdev[0]->dev)); + dev_info(&cgdev->dev, " will be removed.\n"); if (cgdev->state == CCWGROUP_ONLINE) claw_shutdown_device(cgdev); claw_remove_files(&cgdev->dev); @@ -3063,7 +3095,8 @@ claw_hname_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_hname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_hname_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; @@ -3100,7 +3133,8 @@ claw_adname_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_adname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_adname_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; @@ -3138,7 +3172,8 @@ claw_apname_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_apname_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_apname_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; @@ -3185,7 +3220,8 @@ claw_wbuff_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_wbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_wbuff_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env * p_env; @@ -3226,7 +3262,8 @@ claw_rbuff_show(struct device *dev, struct device_attribute *attr, char *buf) } static ssize_t -claw_rbuff_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +claw_rbuff_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct claw_privbk *priv; struct claw_env *p_env; @@ -3289,7 +3326,7 @@ claw_cleanup(void) { unregister_cu3088_discipline(&claw_group_driver); claw_unregister_debug_facility(); - printk(KERN_INFO "claw: Driver unloaded\n"); + pr_info("Driver unloaded\n"); } @@ -3303,12 +3340,12 @@ static int __init claw_init(void) { int ret = 0; - printk(KERN_INFO "claw: starting driver\n"); + pr_info("Loading %s\n", version); ret = claw_register_debug_facility(); if (ret) { - printk(KERN_WARNING "claw: %s() debug_register failed %d\n", - __func__,ret); + pr_err("Registering with the S/390 debug feature" + " failed with error code %d\n", ret); return ret; } CLAW_DBF_TEXT(2, setup, "init_mod"); @@ -3316,8 +3353,8 @@ claw_init(void) if (ret) { CLAW_DBF_TEXT(2, setup, "init_bad"); claw_unregister_debug_facility(); - printk(KERN_WARNING "claw; %s() cu3088 register failed %d\n", - __func__,ret); + pr_err("Registering with the cu3088 device driver failed " + "with error code %d\n", ret); } return ret; } diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c index f29c7086fc19..4ded9ac2c5ef 100644 --- a/drivers/s390/net/ctcm_fsms.c +++ b/drivers/s390/net/ctcm_fsms.c @@ -410,9 +410,8 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) priv->stats.rx_length_errors++; goto again; } - block_len -= 2; - if (block_len > 0) { - *((__u16 *)skb->data) = block_len; + if (block_len > 2) { + *((__u16 *)skb->data) = block_len - 2; ctcm_unpack_skb(ch, skb); } again: diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 2678573becec..77f4033a0f4f 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -105,7 +105,8 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) return; } pskb->protocol = ntohs(header->type); - if (header->length <= LL_HEADER_LENGTH) { + if ((header->length <= LL_HEADER_LENGTH) || + (len <= LL_HEADER_LENGTH)) { if (!(ch->logflags & LOG_FLAG_ILLEGALSIZE)) { CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, "%s(%s): Illegal packet size %d(%d,%d)" @@ -167,11 +168,9 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) if (len > 0) { skb_pull(pskb, header->length); if (skb_tailroom(pskb) < LL_HEADER_LENGTH) { - if (!(ch->logflags & LOG_FLAG_OVERRUN)) { - CTCM_DBF_DEV_NAME(TRACE, dev, - "Overrun in ctcm_unpack_skb"); - ch->logflags |= LOG_FLAG_OVERRUN; - } + CTCM_DBF_DEV_NAME(TRACE, dev, + "Overrun in ctcm_unpack_skb"); + ch->logflags |= LOG_FLAG_OVERRUN; return; } skb_put(pskb, LL_HEADER_LENGTH); @@ -906,11 +905,11 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev) } if (ctcm_test_and_set_busy(dev)) - return -EBUSY; + return NETDEV_TX_BUSY; dev->trans_start = jiffies; if (ctcm_transmit_skb(priv->channel[WRITE], skb) != 0) - return 1; + return NETDEV_TX_BUSY; return 0; } @@ -1099,12 +1098,24 @@ static void ctcm_free_netdevice(struct net_device *dev) struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv); +static const struct net_device_ops ctcm_netdev_ops = { + .ndo_open = ctcm_open, + .ndo_stop = ctcm_close, + .ndo_get_stats = ctcm_stats, + .ndo_change_mtu = ctcm_change_mtu, + .ndo_start_xmit = ctcm_tx, +}; + +static const struct net_device_ops ctcm_mpc_netdev_ops = { + .ndo_open = ctcm_open, + .ndo_stop = ctcm_close, + .ndo_get_stats = ctcm_stats, + .ndo_change_mtu = ctcm_change_mtu, + .ndo_start_xmit = ctcmpc_tx, +}; + void static ctcm_dev_setup(struct net_device *dev) { - dev->open = ctcm_open; - dev->stop = ctcm_close; - dev->get_stats = ctcm_stats; - dev->change_mtu = ctcm_change_mtu; dev->type = ARPHRD_SLIP; dev->tx_queue_len = 100; dev->flags = IFF_POINTOPOINT | IFF_NOARP; @@ -1157,12 +1168,12 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv) dev->mtu = MPC_BUFSIZE_DEFAULT - TH_HEADER_LENGTH - PDU_HEADER_LENGTH; - dev->hard_start_xmit = ctcmpc_tx; + dev->netdev_ops = &ctcm_mpc_netdev_ops; dev->hard_header_len = TH_HEADER_LENGTH + PDU_HEADER_LENGTH; priv->buffer_size = MPC_BUFSIZE_DEFAULT; } else { dev->mtu = CTCM_BUFSIZE_DEFAULT - LL_HEADER_LENGTH - 2; - dev->hard_start_xmit = ctcm_tx; + dev->netdev_ops = &ctcm_netdev_ops; dev->hard_header_len = LL_HEADER_LENGTH + 2; } diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c index 3db5f846bbf6..781e18be7e8f 100644 --- a/drivers/s390/net/ctcm_mpc.c +++ b/drivers/s390/net/ctcm_mpc.c @@ -393,7 +393,6 @@ int ctc_mpc_alloc_channel(int port_num, void (*callback)(int, int)) } else { /* there are problems...bail out */ /* there may be a state mismatch so restart */ - grp->port_persist = 1; fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); grp->allocchan_callback_retries = 0; } @@ -699,11 +698,9 @@ static void ctcmpc_send_sweep_resp(struct channel *rch) return; done: - if (rc != 0) { - grp->in_sweep = 0; - ctcm_clear_busy_do(dev); - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - } + grp->in_sweep = 0; + ctcm_clear_busy_do(dev); + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); return; } @@ -1118,7 +1115,6 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) if (unlikely(fsm_getstate(grp->fsm) != MPCG_STATE_READY)) goto done; - pdu_last_seen = 0; while ((pskb->len > 0) && !pdu_last_seen) { curr_pdu = (struct pdu *)pskb->data; @@ -1396,8 +1392,7 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg) CTCM_FUNTAIL, dev->name); if ((grp->saved_state != MPCG_STATE_RESET) || /* dealloc_channel has been called */ - ((grp->saved_state == MPCG_STATE_RESET) && - (grp->port_persist == 0))) + (grp->port_persist == 0)) fsm_deltimer(&priv->restart_timer); wch = priv->channel[WRITE]; @@ -1917,10 +1912,8 @@ static void mpc_action_doxid7(fsm_instance *fsm, int event, void *arg) if (priv) grp = priv->mpcg; - if (grp == NULL) { - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); + if (grp == NULL) return; - } for (direction = READ; direction <= WRITE; direction++) { struct channel *ch = priv->channel[direction]; diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 49c3bfa1afd7..a45bc24eb5f9 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -39,6 +39,7 @@ #include <linux/in.h> #include <linux/igmp.h> #include <linux/delay.h> +#include <linux/kthread.h> #include <net/arp.h> #include <net/ip.h> @@ -1259,7 +1260,6 @@ lcs_register_mc_addresses(void *data) struct in_device *in4_dev; card = (struct lcs_card *) data; - daemonize("regipm"); if (!lcs_do_run_thread(card, LCS_SET_MC_THREAD)) return 0; @@ -1562,7 +1562,7 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb, if (skb == NULL) { card->stats.tx_dropped++; card->stats.tx_errors++; - return -EIO; + return 0; } if (card->state != DEV_STATE_UP) { dev_kfree_skb(skb); @@ -1587,7 +1587,7 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb, card->tx_buffer = lcs_get_buffer(&card->write); if (card->tx_buffer == NULL) { card->stats.tx_dropped++; - rc = -EBUSY; + rc = NETDEV_TX_BUSY; goto out; } card->tx_buffer->callback = lcs_txbuffer_cb; @@ -1753,11 +1753,10 @@ lcs_start_kernel_thread(struct work_struct *work) struct lcs_card *card = container_of(work, struct lcs_card, kernel_thread_starter); LCS_DBF_TEXT(5, trace, "krnthrd"); if (lcs_do_start_thread(card, LCS_RECOVERY_THREAD)) - kernel_thread(lcs_recovery, (void *) card, SIGCHLD); + kthread_run(lcs_recovery, card, "lcs_recover"); #ifdef CONFIG_IP_MULTICAST if (lcs_do_start_thread(card, LCS_SET_MC_THREAD)) - kernel_thread(lcs_register_mc_addresses, - (void *) card, SIGCHLD); + kthread_run(lcs_register_mc_addresses, card, "regipm"); #endif } @@ -2101,6 +2100,20 @@ lcs_register_netdev(struct ccwgroup_device *ccwgdev) /** * lcs_new_device will be called by setting the group device online. */ +static const struct net_device_ops lcs_netdev_ops = { + .ndo_open = lcs_open_device, + .ndo_stop = lcs_stop_device, + .ndo_get_stats = lcs_getstats, + .ndo_start_xmit = lcs_start_xmit, +}; + +static const struct net_device_ops lcs_mc_netdev_ops = { + .ndo_open = lcs_open_device, + .ndo_stop = lcs_stop_device, + .ndo_get_stats = lcs_getstats, + .ndo_start_xmit = lcs_start_xmit, + .ndo_set_multicast_list = lcs_set_multicast_list, +}; static int lcs_new_device(struct ccwgroup_device *ccwgdev) @@ -2168,14 +2181,11 @@ lcs_new_device(struct ccwgroup_device *ccwgdev) goto out; card->dev = dev; card->dev->ml_priv = card; - card->dev->open = lcs_open_device; - card->dev->stop = lcs_stop_device; - card->dev->hard_start_xmit = lcs_start_xmit; - card->dev->get_stats = lcs_getstats; + card->dev->netdev_ops = &lcs_netdev_ops; memcpy(card->dev->dev_addr, card->mac, LCS_MAC_LENGTH); #ifdef CONFIG_IP_MULTICAST if (!lcs_check_multicast_support(card)) - card->dev->set_multicast_list = lcs_set_multicast_list; + card->dev->netdev_ops = &lcs_mc_netdev_ops; #endif netdev_out: lcs_set_allowed_threads(card,0xffffffff); @@ -2258,7 +2268,6 @@ lcs_recovery(void *ptr) int rc; card = (struct lcs_card *) ptr; - daemonize("lcs_recover"); LCS_DBF_TEXT(4, trace, "recover1"); if (!lcs_do_run_thread(card, LCS_RECOVERY_THREAD)) diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index 930e2fc2a011..be716e45f7ac 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -1312,7 +1312,7 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev) if (netiucv_test_and_set_busy(dev)) { IUCV_DBF_TEXT(data, 2, "EBUSY from netiucv_tx\n"); - return -EBUSY; + return NETDEV_TX_BUSY; } dev->trans_start = jiffies; rc = netiucv_transmit_skb(privptr->conn, skb) != 0; @@ -1876,20 +1876,24 @@ static void netiucv_free_netdevice(struct net_device *dev) /** * Initialize a net device. (Called from kernel in alloc_netdev()) */ +static const struct net_device_ops netiucv_netdev_ops = { + .ndo_open = netiucv_open, + .ndo_stop = netiucv_close, + .ndo_get_stats = netiucv_stats, + .ndo_start_xmit = netiucv_tx, + .ndo_change_mtu = netiucv_change_mtu, +}; + static void netiucv_setup_netdevice(struct net_device *dev) { dev->mtu = NETIUCV_MTU_DEFAULT; - dev->hard_start_xmit = netiucv_tx; - dev->open = netiucv_open; - dev->stop = netiucv_close; - dev->get_stats = netiucv_stats; - dev->change_mtu = netiucv_change_mtu; dev->destructor = netiucv_free_netdevice; dev->hard_header_len = NETIUCV_HDRLEN; dev->addr_len = 0; dev->type = ARPHRD_SLIP; dev->tx_queue_len = NETIUCV_QUEUELEN_DEFAULT; dev->flags = IFF_POINTOPOINT | IFF_NOARP; + dev->netdev_ops = &netiucv_netdev_ops; } /** diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index e0c45574b0c8..447e1d19581a 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -134,6 +134,7 @@ struct qeth_perf_stats { unsigned int sg_skbs_rx; unsigned int sg_frags_rx; unsigned int sg_alloc_page_rx; + unsigned int tx_csum; }; /* Routing stuff */ @@ -403,7 +404,6 @@ struct qeth_qdio_q { /* possible types of qeth large_send support */ enum qeth_large_send_types { QETH_LARGE_SEND_NO, - QETH_LARGE_SEND_EDDP, QETH_LARGE_SEND_TSO, }; @@ -838,11 +838,9 @@ int qeth_get_cast_type(struct qeth_card *, struct sk_buff *); int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int); int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, - struct sk_buff *, struct qeth_hdr *, int, - struct qeth_eddp_context *, int, int); + struct sk_buff *, struct qeth_hdr *, int, int, int); int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *, - struct sk_buff *, struct qeth_hdr *, - int, struct qeth_eddp_context *); + struct sk_buff *, struct qeth_hdr *, int); int qeth_core_get_stats_count(struct net_device *); void qeth_core_get_ethtool_stats(struct net_device *, struct ethtool_stats *, u64 *); diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index d1b5bebea7fb..c827d69b5a91 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -17,7 +17,6 @@ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/ip.h> -#include <linux/ipv6.h> #include <linux/tcp.h> #include <linux/mii.h> #include <linux/kthread.h> @@ -26,7 +25,6 @@ #include <asm/io.h> #include "qeth_core.h" -#include "qeth_core_offl.h" struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ @@ -285,17 +283,6 @@ int qeth_set_large_send(struct qeth_card *card, netif_tx_disable(card->dev); card->options.large_send = type; switch (card->options.large_send) { - case QETH_LARGE_SEND_EDDP: - if (card->info.type != QETH_CARD_TYPE_IQD) { - card->dev->features |= NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM; - } else { - card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM); - card->options.large_send = QETH_LARGE_SEND_NO; - rc = -EOPNOTSUPP; - } - break; case QETH_LARGE_SEND_TSO: if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { card->dev->features |= NETIF_F_TSO | NETIF_F_SG | @@ -956,7 +943,6 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, dev_kfree_skb_any(skb); skb = skb_dequeue(&buf->skb_list); } - qeth_eddp_buf_release_contexts(buf); for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { if (buf->buffer->element[i].addr && buf->is_header[i]) kmem_cache_free(qeth_core_header_cache, @@ -1690,7 +1676,7 @@ int qeth_send_control_data(struct qeth_card *card, int len, int rc; unsigned long flags; struct qeth_reply *reply = NULL; - unsigned long timeout; + unsigned long timeout, event_timeout; struct qeth_ipa_cmd *cmd; QETH_DBF_TEXT(TRACE, 2, "sendctl"); @@ -1715,9 +1701,10 @@ int qeth_send_control_data(struct qeth_card *card, int len, qeth_prepare_control_data(card, len, iob); if (IS_IPA(iob->data)) - timeout = jiffies + QETH_IPA_TIMEOUT; + event_timeout = QETH_IPA_TIMEOUT; else - timeout = jiffies + QETH_TIMEOUT; + event_timeout = QETH_TIMEOUT; + timeout = jiffies + event_timeout; QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); @@ -1745,7 +1732,7 @@ int qeth_send_control_data(struct qeth_card *card, int len, if ((cmd->hdr.command == IPA_CMD_SETIP) && (cmd->hdr.prot_version == QETH_PROT_IPV4)) { if (!wait_event_timeout(reply->wait_q, - atomic_read(&reply->received), timeout)) + atomic_read(&reply->received), event_timeout)) goto time_err; } else { while (!atomic_read(&reply->received)) { @@ -2693,40 +2680,21 @@ static int qeth_handle_send_error(struct qeth_card *card, struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) { int sbalf15 = buffer->buffer->element[15].flags & 0xff; - int cc = qdio_err & 3; QETH_DBF_TEXT(TRACE, 6, "hdsnderr"); qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr"); - switch (cc) { - case 0: - if (qdio_err) { - QETH_DBF_TEXT(TRACE, 1, "lnkfail"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - QETH_DBF_TEXT_(TRACE, 1, "%04x %02x", - (u16)qdio_err, (u8)sbalf15); - return QETH_SEND_ERROR_LINK_FAILURE; - } + + if (!qdio_err) return QETH_SEND_ERROR_NONE; - case 2: - if (qdio_err & QDIO_ERROR_SIGA_BUSY) { - QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - return QETH_SEND_ERROR_KICK_IT; - } - if ((sbalf15 >= 15) && (sbalf15 <= 31)) - return QETH_SEND_ERROR_RETRY; - return QETH_SEND_ERROR_LINK_FAILURE; - /* look at qdio_error and sbalf 15 */ - case 1: - QETH_DBF_TEXT(TRACE, 1, "SIGAcc1"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - return QETH_SEND_ERROR_LINK_FAILURE; - case 3: - default: - QETH_DBF_TEXT(TRACE, 1, "SIGAcc3"); - QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); - return QETH_SEND_ERROR_KICK_IT; - } + + if ((sbalf15 >= 15) && (sbalf15 <= 31)) + return QETH_SEND_ERROR_RETRY; + + QETH_DBF_TEXT(TRACE, 1, "lnkfail"); + QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); + QETH_DBF_TEXT_(TRACE, 1, "%04x %02x", + (u16)qdio_err, (u8)sbalf15); + return QETH_SEND_ERROR_LINK_FAILURE; } /* @@ -2862,10 +2830,14 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, qeth_get_micros() - queue->card->perf_stats.outbound_do_qdio_start_time; if (rc) { + queue->card->stats.tx_errors += count; + /* ignore temporary SIGA errors without busy condition */ + if (rc == QDIO_ERROR_SIGA_TARGET) + return; QETH_DBF_TEXT(TRACE, 2, "flushbuf"); QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card)); - queue->card->stats.tx_errors += count; + /* this must not happen under normal circumstances. if it * happens something is really wrong -> recover */ qeth_schedule_recovery(queue->card); @@ -2940,13 +2912,7 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev, } for (i = first_element; i < (first_element + count); ++i) { buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; - /*we only handle the KICK_IT error by doing a recovery */ - if (qeth_handle_send_error(card, buffer, qdio_error) - == QETH_SEND_ERROR_KICK_IT){ - netif_stop_queue(card->dev); - qeth_schedule_recovery(card); - return; - } + qeth_handle_send_error(card, buffer, qdio_error); qeth_clear_output_buffer(queue, buffer); } atomic_sub(count, &queue->used_buffers); @@ -3187,11 +3153,9 @@ static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, int qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue, struct sk_buff *skb, struct qeth_hdr *hdr, int elements_needed, - struct qeth_eddp_context *ctx, int offset, int hd_len) + int offset, int hd_len) { struct qeth_qdio_out_buffer *buffer; - int buffers_needed = 0; - int flush_cnt = 0; int index; /* spin until we get the queue ... */ @@ -3206,27 +3170,11 @@ int qeth_do_send_packet_fast(struct qeth_card *card, */ if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) goto out; - if (ctx == NULL) - queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % + queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; - else { - buffers_needed = qeth_eddp_check_buffers_for_context(queue, - ctx); - if (buffers_needed < 0) - goto out; - queue->next_buf_to_fill = - (queue->next_buf_to_fill + buffers_needed) % - QDIO_MAX_BUFFERS_PER_Q; - } atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); - if (ctx == NULL) { - qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); - qeth_flush_buffers(queue, index, 1); - } else { - flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index); - WARN_ON(buffers_needed != flush_cnt); - qeth_flush_buffers(queue, index, flush_cnt); - } + qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); + qeth_flush_buffers(queue, index, 1); return 0; out: atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); @@ -3236,7 +3184,7 @@ EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, struct sk_buff *skb, struct qeth_hdr *hdr, - int elements_needed, struct qeth_eddp_context *ctx) + int elements_needed) { struct qeth_qdio_out_buffer *buffer; int start_index; @@ -3262,53 +3210,32 @@ int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, qeth_switch_to_packing_if_needed(queue); if (queue->do_pack) { do_pack = 1; - if (ctx == NULL) { - /* does packet fit in current buffer? */ - if ((QETH_MAX_BUFFER_ELEMENTS(card) - - buffer->next_element_to_fill) < elements_needed) { - /* ... no -> set state PRIMED */ - atomic_set(&buffer->state, - QETH_QDIO_BUF_PRIMED); - flush_count++; - queue->next_buf_to_fill = - (queue->next_buf_to_fill + 1) % - QDIO_MAX_BUFFERS_PER_Q; - buffer = &queue->bufs[queue->next_buf_to_fill]; - /* we did a step forward, so check buffer state - * again */ - if (atomic_read(&buffer->state) != - QETH_QDIO_BUF_EMPTY){ - qeth_flush_buffers(queue, start_index, + /* does packet fit in current buffer? */ + if ((QETH_MAX_BUFFER_ELEMENTS(card) - + buffer->next_element_to_fill) < elements_needed) { + /* ... no -> set state PRIMED */ + atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); + flush_count++; + queue->next_buf_to_fill = + (queue->next_buf_to_fill + 1) % + QDIO_MAX_BUFFERS_PER_Q; + buffer = &queue->bufs[queue->next_buf_to_fill]; + /* we did a step forward, so check buffer state + * again */ + if (atomic_read(&buffer->state) != + QETH_QDIO_BUF_EMPTY) { + qeth_flush_buffers(queue, start_index, flush_count); - atomic_set(&queue->state, + atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); - return -EBUSY; - } - } - } else { - /* check if we have enough elements (including following - * free buffers) to handle eddp context */ - if (qeth_eddp_check_buffers_for_context(queue, ctx) - < 0) { - rc = -EBUSY; - goto out; + return -EBUSY; } } } - if (ctx == NULL) - tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); - else { - tmp = qeth_eddp_fill_buffer(queue, ctx, - queue->next_buf_to_fill); - if (tmp < 0) { - rc = -EBUSY; - goto out; - } - } + tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % QDIO_MAX_BUFFERS_PER_Q; flush_count += tmp; -out: if (flush_count) qeth_flush_buffers(queue, start_index, flush_count); else if (!atomic_read(&queue->set_pci_flags_count)) @@ -4327,6 +4254,7 @@ static struct { /* 30 */{"tx count"}, {"tx do_QDIO time"}, {"tx do_QDIO count"}, + {"tx csum"}, }; int qeth_core_get_stats_count(struct net_device *dev) @@ -4378,6 +4306,7 @@ void qeth_core_get_ethtool_stats(struct net_device *dev, data[30] = card->perf_stats.outbound_cnt; data[31] = card->perf_stats.outbound_do_qdio_time; data[32] = card->perf_stats.outbound_do_qdio_cnt; + data[33] = card->perf_stats.tx_csum; } EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); diff --git a/drivers/s390/net/qeth_core_offl.c b/drivers/s390/net/qeth_core_offl.c deleted file mode 100644 index 4080126ca48c..000000000000 --- a/drivers/s390/net/qeth_core_offl.c +++ /dev/null @@ -1,699 +0,0 @@ -/* - * drivers/s390/net/qeth_core_offl.c - * - * Copyright IBM Corp. 2007 - * Author(s): Thomas Spatzier <tspat@de.ibm.com>, - * Frank Blaschka <frank.blaschka@de.ibm.com> - */ - -#include <linux/errno.h> -#include <linux/ip.h> -#include <linux/inetdevice.h> -#include <linux/netdevice.h> -#include <linux/kernel.h> -#include <linux/tcp.h> -#include <net/tcp.h> -#include <linux/skbuff.h> - -#include <net/ip.h> -#include <net/ip6_checksum.h> - -#include "qeth_core.h" -#include "qeth_core_mpc.h" -#include "qeth_core_offl.h" - -int qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *queue, - struct qeth_eddp_context *ctx) -{ - int index = queue->next_buf_to_fill; - int elements_needed = ctx->num_elements; - int elements_in_buffer; - int skbs_in_buffer; - int buffers_needed = 0; - - QETH_DBF_TEXT(TRACE, 5, "eddpcbfc"); - while (elements_needed > 0) { - buffers_needed++; - if (atomic_read(&queue->bufs[index].state) != - QETH_QDIO_BUF_EMPTY) - return -EBUSY; - - elements_in_buffer = QETH_MAX_BUFFER_ELEMENTS(queue->card) - - queue->bufs[index].next_element_to_fill; - skbs_in_buffer = elements_in_buffer / ctx->elements_per_skb; - elements_needed -= skbs_in_buffer * ctx->elements_per_skb; - index = (index + 1) % QDIO_MAX_BUFFERS_PER_Q; - } - return buffers_needed; -} - -static void qeth_eddp_free_context(struct qeth_eddp_context *ctx) -{ - int i; - - QETH_DBF_TEXT(TRACE, 5, "eddpfctx"); - for (i = 0; i < ctx->num_pages; ++i) - free_page((unsigned long)ctx->pages[i]); - kfree(ctx->pages); - kfree(ctx->elements); - kfree(ctx); -} - - -static void qeth_eddp_get_context(struct qeth_eddp_context *ctx) -{ - atomic_inc(&ctx->refcnt); -} - -void qeth_eddp_put_context(struct qeth_eddp_context *ctx) -{ - if (atomic_dec_return(&ctx->refcnt) == 0) - qeth_eddp_free_context(ctx); -} -EXPORT_SYMBOL_GPL(qeth_eddp_put_context); - -void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *buf) -{ - struct qeth_eddp_context_reference *ref; - - QETH_DBF_TEXT(TRACE, 6, "eddprctx"); - while (!list_empty(&buf->ctx_list)) { - ref = list_entry(buf->ctx_list.next, - struct qeth_eddp_context_reference, list); - qeth_eddp_put_context(ref->ctx); - list_del(&ref->list); - kfree(ref); - } -} - -static int qeth_eddp_buf_ref_context(struct qeth_qdio_out_buffer *buf, - struct qeth_eddp_context *ctx) -{ - struct qeth_eddp_context_reference *ref; - - QETH_DBF_TEXT(TRACE, 6, "eddprfcx"); - ref = kmalloc(sizeof(struct qeth_eddp_context_reference), GFP_ATOMIC); - if (ref == NULL) - return -ENOMEM; - qeth_eddp_get_context(ctx); - ref->ctx = ctx; - list_add_tail(&ref->list, &buf->ctx_list); - return 0; -} - -int qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue, - struct qeth_eddp_context *ctx, int index) -{ - struct qeth_qdio_out_buffer *buf = NULL; - struct qdio_buffer *buffer; - int elements = ctx->num_elements; - int element = 0; - int flush_cnt = 0; - int must_refcnt = 1; - int i; - - QETH_DBF_TEXT(TRACE, 5, "eddpfibu"); - while (elements > 0) { - buf = &queue->bufs[index]; - if (atomic_read(&buf->state) != QETH_QDIO_BUF_EMPTY) { - /* normally this should not happen since we checked for - * available elements in qeth_check_elements_for_context - */ - if (element == 0) - return -EBUSY; - else { - QETH_DBF_MESSAGE(2, "could only partially fill" - "eddp buffer!\n"); - goto out; - } - } - /* check if the whole next skb fits into current buffer */ - if ((QETH_MAX_BUFFER_ELEMENTS(queue->card) - - buf->next_element_to_fill) - < ctx->elements_per_skb){ - /* no -> go to next buffer */ - atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); - index = (index + 1) % QDIO_MAX_BUFFERS_PER_Q; - flush_cnt++; - /* new buffer, so we have to add ctx to buffer'ctx_list - * and increment ctx's refcnt */ - must_refcnt = 1; - continue; - } - if (must_refcnt) { - must_refcnt = 0; - if (qeth_eddp_buf_ref_context(buf, ctx)) { - goto out_check; - } - } - buffer = buf->buffer; - /* fill one skb into buffer */ - for (i = 0; i < ctx->elements_per_skb; ++i) { - if (ctx->elements[element].length != 0) { - buffer->element[buf->next_element_to_fill]. - addr = ctx->elements[element].addr; - buffer->element[buf->next_element_to_fill]. - length = ctx->elements[element].length; - buffer->element[buf->next_element_to_fill]. - flags = ctx->elements[element].flags; - buf->next_element_to_fill++; - } - element++; - elements--; - } - } -out_check: - if (!queue->do_pack) { - QETH_DBF_TEXT(TRACE, 6, "fillbfnp"); - /* set state to PRIMED -> will be flushed */ - if (buf->next_element_to_fill > 0) { - atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); - flush_cnt++; - } - } else { - if (queue->card->options.performance_stats) - queue->card->perf_stats.skbs_sent_pack++; - QETH_DBF_TEXT(TRACE, 6, "fillbfpa"); - if (buf->next_element_to_fill >= - QETH_MAX_BUFFER_ELEMENTS(queue->card)) { - /* - * packed buffer if full -> set state PRIMED - * -> will be flushed - */ - atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); - flush_cnt++; - } - } -out: - return flush_cnt; -} - -static void qeth_eddp_create_segment_hdrs(struct qeth_eddp_context *ctx, - struct qeth_eddp_data *eddp, int data_len) -{ - u8 *page; - int page_remainder; - int page_offset; - int pkt_len; - struct qeth_eddp_element *element; - - QETH_DBF_TEXT(TRACE, 5, "eddpcrsh"); - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = ctx->offset % PAGE_SIZE; - element = &ctx->elements[ctx->num_elements]; - pkt_len = eddp->nhl + eddp->thl + data_len; - /* FIXME: layer2 and VLAN !!! */ - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) - pkt_len += ETH_HLEN; - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) - pkt_len += VLAN_HLEN; - /* does complete packet fit in current page ? */ - page_remainder = PAGE_SIZE - page_offset; - if (page_remainder < (sizeof(struct qeth_hdr) + pkt_len)) { - /* no -> go to start of next page */ - ctx->offset += page_remainder; - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = 0; - } - memcpy(page + page_offset, &eddp->qh, sizeof(struct qeth_hdr)); - element->addr = page + page_offset; - element->length = sizeof(struct qeth_hdr); - ctx->offset += sizeof(struct qeth_hdr); - page_offset += sizeof(struct qeth_hdr); - /* add mac header (?) */ - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - memcpy(page + page_offset, &eddp->mac, ETH_HLEN); - element->length += ETH_HLEN; - ctx->offset += ETH_HLEN; - page_offset += ETH_HLEN; - } - /* add VLAN tag */ - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) { - memcpy(page + page_offset, &eddp->vlan, VLAN_HLEN); - element->length += VLAN_HLEN; - ctx->offset += VLAN_HLEN; - page_offset += VLAN_HLEN; - } - /* add network header */ - memcpy(page + page_offset, (u8 *)&eddp->nh, eddp->nhl); - element->length += eddp->nhl; - eddp->nh_in_ctx = page + page_offset; - ctx->offset += eddp->nhl; - page_offset += eddp->nhl; - /* add transport header */ - memcpy(page + page_offset, (u8 *)&eddp->th, eddp->thl); - element->length += eddp->thl; - eddp->th_in_ctx = page + page_offset; - ctx->offset += eddp->thl; -} - -static void qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, - int len, __wsum *hcsum) -{ - struct skb_frag_struct *frag; - int left_in_frag; - int copy_len; - u8 *src; - - QETH_DBF_TEXT(TRACE, 5, "eddpcdtc"); - if (skb_shinfo(eddp->skb)->nr_frags == 0) { - skb_copy_from_linear_data_offset(eddp->skb, eddp->skb_offset, - dst, len); - *hcsum = csum_partial(eddp->skb->data + eddp->skb_offset, len, - *hcsum); - eddp->skb_offset += len; - } else { - while (len > 0) { - if (eddp->frag < 0) { - /* we're in skb->data */ - left_in_frag = (eddp->skb->len - - eddp->skb->data_len) - - eddp->skb_offset; - src = eddp->skb->data + eddp->skb_offset; - } else { - frag = &skb_shinfo(eddp->skb)->frags[ - eddp->frag]; - left_in_frag = frag->size - eddp->frag_offset; - src = (u8 *)((page_to_pfn(frag->page) << - PAGE_SHIFT) + frag->page_offset + - eddp->frag_offset); - } - if (left_in_frag <= 0) { - eddp->frag++; - eddp->frag_offset = 0; - continue; - } - copy_len = min(left_in_frag, len); - memcpy(dst, src, copy_len); - *hcsum = csum_partial(src, copy_len, *hcsum); - dst += copy_len; - eddp->frag_offset += copy_len; - eddp->skb_offset += copy_len; - len -= copy_len; - } - } -} - -static void qeth_eddp_create_segment_data_tcp(struct qeth_eddp_context *ctx, - struct qeth_eddp_data *eddp, int data_len, __wsum hcsum) -{ - u8 *page; - int page_remainder; - int page_offset; - struct qeth_eddp_element *element; - int first_lap = 1; - - QETH_DBF_TEXT(TRACE, 5, "eddpcsdt"); - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = ctx->offset % PAGE_SIZE; - element = &ctx->elements[ctx->num_elements]; - while (data_len) { - page_remainder = PAGE_SIZE - page_offset; - if (page_remainder < data_len) { - qeth_eddp_copy_data_tcp(page + page_offset, eddp, - page_remainder, &hcsum); - element->length += page_remainder; - if (first_lap) - element->flags = SBAL_FLAGS_FIRST_FRAG; - else - element->flags = SBAL_FLAGS_MIDDLE_FRAG; - ctx->num_elements++; - element++; - data_len -= page_remainder; - ctx->offset += page_remainder; - page = ctx->pages[ctx->offset >> PAGE_SHIFT]; - page_offset = 0; - element->addr = page + page_offset; - } else { - qeth_eddp_copy_data_tcp(page + page_offset, eddp, - data_len, &hcsum); - element->length += data_len; - if (!first_lap) - element->flags = SBAL_FLAGS_LAST_FRAG; - ctx->num_elements++; - ctx->offset += data_len; - data_len = 0; - } - first_lap = 0; - } - ((struct tcphdr *)eddp->th_in_ctx)->check = csum_fold(hcsum); -} - -static __wsum qeth_eddp_check_tcp4_hdr(struct qeth_eddp_data *eddp, - int data_len) -{ - __wsum phcsum; /* pseudo header checksum */ - - QETH_DBF_TEXT(TRACE, 5, "eddpckt4"); - eddp->th.tcp.h.check = 0; - /* compute pseudo header checksum */ - phcsum = csum_tcpudp_nofold(eddp->nh.ip4.h.saddr, eddp->nh.ip4.h.daddr, - eddp->thl + data_len, IPPROTO_TCP, 0); - /* compute checksum of tcp header */ - return csum_partial(&eddp->th, eddp->thl, phcsum); -} - -static __wsum qeth_eddp_check_tcp6_hdr(struct qeth_eddp_data *eddp, - int data_len) -{ - __be32 proto; - __wsum phcsum; /* pseudo header checksum */ - - QETH_DBF_TEXT(TRACE, 5, "eddpckt6"); - eddp->th.tcp.h.check = 0; - /* compute pseudo header checksum */ - phcsum = csum_partial(&eddp->nh.ip6.h.saddr, - sizeof(struct in6_addr), 0); - phcsum = csum_partial(&eddp->nh.ip6.h.daddr, - sizeof(struct in6_addr), phcsum); - proto = htonl(IPPROTO_TCP); - phcsum = csum_partial(&proto, sizeof(u32), phcsum); - return phcsum; -} - -static struct qeth_eddp_data *qeth_eddp_create_eddp_data(struct qeth_hdr *qh, - u8 *nh, u8 nhl, u8 *th, u8 thl) -{ - struct qeth_eddp_data *eddp; - - QETH_DBF_TEXT(TRACE, 5, "eddpcrda"); - eddp = kzalloc(sizeof(struct qeth_eddp_data), GFP_ATOMIC); - if (eddp) { - eddp->nhl = nhl; - eddp->thl = thl; - memcpy(&eddp->qh, qh, sizeof(struct qeth_hdr)); - memcpy(&eddp->nh, nh, nhl); - memcpy(&eddp->th, th, thl); - eddp->frag = -1; /* initially we're in skb->data */ - } - return eddp; -} - -static void __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, - struct qeth_eddp_data *eddp) -{ - struct tcphdr *tcph; - int data_len; - __wsum hcsum; - - QETH_DBF_TEXT(TRACE, 5, "eddpftcp"); - eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl; - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - eddp->skb_offset += sizeof(struct ethhdr); - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) - eddp->skb_offset += VLAN_HLEN; - } - tcph = tcp_hdr(eddp->skb); - while (eddp->skb_offset < eddp->skb->len) { - data_len = min((int)skb_shinfo(eddp->skb)->gso_size, - (int)(eddp->skb->len - eddp->skb_offset)); - /* prepare qdio hdr */ - if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - eddp->qh.hdr.l2.pkt_length = data_len + ETH_HLEN + - eddp->nhl + eddp->thl; - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) - eddp->qh.hdr.l2.pkt_length += VLAN_HLEN; - } else - eddp->qh.hdr.l3.length = data_len + eddp->nhl + - eddp->thl; - /* prepare ip hdr */ - if (eddp->skb->protocol == htons(ETH_P_IP)) { - eddp->nh.ip4.h.tot_len = htons(data_len + eddp->nhl + - eddp->thl); - eddp->nh.ip4.h.check = 0; - eddp->nh.ip4.h.check = - ip_fast_csum((u8 *)&eddp->nh.ip4.h, - eddp->nh.ip4.h.ihl); - } else - eddp->nh.ip6.h.payload_len = htons(data_len + - eddp->thl); - /* prepare tcp hdr */ - if (data_len == (eddp->skb->len - eddp->skb_offset)) { - /* last segment -> set FIN and PSH flags */ - eddp->th.tcp.h.fin = tcph->fin; - eddp->th.tcp.h.psh = tcph->psh; - } - if (eddp->skb->protocol == htons(ETH_P_IP)) - hcsum = qeth_eddp_check_tcp4_hdr(eddp, data_len); - else - hcsum = qeth_eddp_check_tcp6_hdr(eddp, data_len); - /* fill the next segment into the context */ - qeth_eddp_create_segment_hdrs(ctx, eddp, data_len); - qeth_eddp_create_segment_data_tcp(ctx, eddp, data_len, hcsum); - if (eddp->skb_offset >= eddp->skb->len) - break; - /* prepare headers for next round */ - if (eddp->skb->protocol == htons(ETH_P_IP)) - eddp->nh.ip4.h.id = htons(ntohs(eddp->nh.ip4.h.id) + 1); - eddp->th.tcp.h.seq = htonl(ntohl(eddp->th.tcp.h.seq) + - data_len); - } -} - -static int qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx, - struct sk_buff *skb, struct qeth_hdr *qhdr) -{ - struct qeth_eddp_data *eddp = NULL; - - QETH_DBF_TEXT(TRACE, 5, "eddpficx"); - /* create our segmentation headers and copy original headers */ - if (skb->protocol == htons(ETH_P_IP)) - eddp = qeth_eddp_create_eddp_data(qhdr, - skb_network_header(skb), - ip_hdrlen(skb), - skb_transport_header(skb), - tcp_hdrlen(skb)); - else - eddp = qeth_eddp_create_eddp_data(qhdr, - skb_network_header(skb), - sizeof(struct ipv6hdr), - skb_transport_header(skb), - tcp_hdrlen(skb)); - - if (eddp == NULL) { - QETH_DBF_TEXT(TRACE, 2, "eddpfcnm"); - return -ENOMEM; - } - if (qhdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) { - skb_set_mac_header(skb, sizeof(struct qeth_hdr)); - memcpy(&eddp->mac, eth_hdr(skb), ETH_HLEN); - if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) { - eddp->vlan[0] = skb->protocol; - eddp->vlan[1] = htons(vlan_tx_tag_get(skb)); - } - } - /* the next flags will only be set on the last segment */ - eddp->th.tcp.h.fin = 0; - eddp->th.tcp.h.psh = 0; - eddp->skb = skb; - /* begin segmentation and fill context */ - __qeth_eddp_fill_context_tcp(ctx, eddp); - kfree(eddp); - return 0; -} - -static void qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx, - struct sk_buff *skb, int hdr_len) -{ - int skbs_per_page; - - QETH_DBF_TEXT(TRACE, 5, "eddpcanp"); - /* can we put multiple skbs in one page? */ - skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->gso_size + hdr_len); - if (skbs_per_page > 1) { - ctx->num_pages = (skb_shinfo(skb)->gso_segs + 1) / - skbs_per_page + 1; - ctx->elements_per_skb = 1; - } else { - /* no -> how many elements per skb? */ - ctx->elements_per_skb = (skb_shinfo(skb)->gso_size + hdr_len + - PAGE_SIZE) >> PAGE_SHIFT; - ctx->num_pages = ctx->elements_per_skb * - (skb_shinfo(skb)->gso_segs + 1); - } - ctx->num_elements = ctx->elements_per_skb * - (skb_shinfo(skb)->gso_segs + 1); -} - -static struct qeth_eddp_context *qeth_eddp_create_context_generic( - struct qeth_card *card, struct sk_buff *skb, int hdr_len) -{ - struct qeth_eddp_context *ctx = NULL; - u8 *addr; - int i; - - QETH_DBF_TEXT(TRACE, 5, "creddpcg"); - /* create the context and allocate pages */ - ctx = kzalloc(sizeof(struct qeth_eddp_context), GFP_ATOMIC); - if (ctx == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn1"); - return NULL; - } - ctx->type = QETH_LARGE_SEND_EDDP; - qeth_eddp_calc_num_pages(ctx, skb, hdr_len); - if (ctx->elements_per_skb > QETH_MAX_BUFFER_ELEMENTS(card)) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcis"); - kfree(ctx); - return NULL; - } - ctx->pages = kcalloc(ctx->num_pages, sizeof(u8 *), GFP_ATOMIC); - if (ctx->pages == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn2"); - kfree(ctx); - return NULL; - } - for (i = 0; i < ctx->num_pages; ++i) { - addr = (u8 *)get_zeroed_page(GFP_ATOMIC); - if (addr == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn3"); - ctx->num_pages = i; - qeth_eddp_free_context(ctx); - return NULL; - } - ctx->pages[i] = addr; - } - ctx->elements = kcalloc(ctx->num_elements, - sizeof(struct qeth_eddp_element), GFP_ATOMIC); - if (ctx->elements == NULL) { - QETH_DBF_TEXT(TRACE, 2, "ceddpcn4"); - qeth_eddp_free_context(ctx); - return NULL; - } - /* reset num_elements; will be incremented again in fill_buffer to - * reflect number of actually used elements */ - ctx->num_elements = 0; - return ctx; -} - -static struct qeth_eddp_context *qeth_eddp_create_context_tcp( - struct qeth_card *card, struct sk_buff *skb, - struct qeth_hdr *qhdr) -{ - struct qeth_eddp_context *ctx = NULL; - - QETH_DBF_TEXT(TRACE, 5, "creddpct"); - if (skb->protocol == htons(ETH_P_IP)) - ctx = qeth_eddp_create_context_generic(card, skb, - (sizeof(struct qeth_hdr) + - ip_hdrlen(skb) + - tcp_hdrlen(skb))); - else if (skb->protocol == htons(ETH_P_IPV6)) - ctx = qeth_eddp_create_context_generic(card, skb, - sizeof(struct qeth_hdr) + sizeof(struct ipv6hdr) + - tcp_hdrlen(skb)); - else - QETH_DBF_TEXT(TRACE, 2, "cetcpinv"); - - if (ctx == NULL) { - QETH_DBF_TEXT(TRACE, 2, "creddpnl"); - return NULL; - } - if (qeth_eddp_fill_context_tcp(ctx, skb, qhdr)) { - QETH_DBF_TEXT(TRACE, 2, "ceddptfe"); - qeth_eddp_free_context(ctx); - return NULL; - } - atomic_set(&ctx->refcnt, 1); - return ctx; -} - -struct qeth_eddp_context *qeth_eddp_create_context(struct qeth_card *card, - struct sk_buff *skb, struct qeth_hdr *qhdr, - unsigned char sk_protocol) -{ - QETH_DBF_TEXT(TRACE, 5, "creddpc"); - switch (sk_protocol) { - case IPPROTO_TCP: - return qeth_eddp_create_context_tcp(card, skb, qhdr); - default: - QETH_DBF_TEXT(TRACE, 2, "eddpinvp"); - } - return NULL; -} -EXPORT_SYMBOL_GPL(qeth_eddp_create_context); - -void qeth_tso_fill_header(struct qeth_card *card, struct qeth_hdr *qhdr, - struct sk_buff *skb) -{ - struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; - struct tcphdr *tcph = tcp_hdr(skb); - struct iphdr *iph = ip_hdr(skb); - struct ipv6hdr *ip6h = ipv6_hdr(skb); - - QETH_DBF_TEXT(TRACE, 5, "tsofhdr"); - - /*fix header to TSO values ...*/ - hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; - /*set values which are fix for the first approach ...*/ - hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); - hdr->ext.imb_hdr_no = 1; - hdr->ext.hdr_type = 1; - hdr->ext.hdr_version = 1; - hdr->ext.hdr_len = 28; - /*insert non-fix values */ - hdr->ext.mss = skb_shinfo(skb)->gso_size; - hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); - hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - - sizeof(struct qeth_hdr_tso)); - tcph->check = 0; - if (skb->protocol == ETH_P_IPV6) { - ip6h->payload_len = 0; - tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, - 0, IPPROTO_TCP, 0); - } else { - /*OSA want us to set these values ...*/ - tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, - 0, IPPROTO_TCP, 0); - iph->tot_len = 0; - iph->check = 0; - } -} -EXPORT_SYMBOL_GPL(qeth_tso_fill_header); - -void qeth_tx_csum(struct sk_buff *skb) -{ - int tlen; - if (skb->protocol == htons(ETH_P_IP)) { - tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2); - switch (ip_hdr(skb)->protocol) { - case IPPROTO_TCP: - tcp_hdr(skb)->check = 0; - tcp_hdr(skb)->check = csum_tcpudp_magic( - ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, - tlen, ip_hdr(skb)->protocol, - skb_checksum(skb, skb_transport_offset(skb), - tlen, 0)); - break; - case IPPROTO_UDP: - udp_hdr(skb)->check = 0; - udp_hdr(skb)->check = csum_tcpudp_magic( - ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, - tlen, ip_hdr(skb)->protocol, - skb_checksum(skb, skb_transport_offset(skb), - tlen, 0)); - break; - } - } else if (skb->protocol == htons(ETH_P_IPV6)) { - switch (ipv6_hdr(skb)->nexthdr) { - case IPPROTO_TCP: - tcp_hdr(skb)->check = 0; - tcp_hdr(skb)->check = csum_ipv6_magic( - &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, - ipv6_hdr(skb)->payload_len, - ipv6_hdr(skb)->nexthdr, - skb_checksum(skb, skb_transport_offset(skb), - ipv6_hdr(skb)->payload_len, 0)); - break; - case IPPROTO_UDP: - udp_hdr(skb)->check = 0; - udp_hdr(skb)->check = csum_ipv6_magic( - &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, - ipv6_hdr(skb)->payload_len, - ipv6_hdr(skb)->nexthdr, - skb_checksum(skb, skb_transport_offset(skb), - ipv6_hdr(skb)->payload_len, 0)); - break; - } - } -} -EXPORT_SYMBOL_GPL(qeth_tx_csum); diff --git a/drivers/s390/net/qeth_core_offl.h b/drivers/s390/net/qeth_core_offl.h deleted file mode 100644 index 86bf7df8cf16..000000000000 --- a/drivers/s390/net/qeth_core_offl.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * drivers/s390/net/qeth_core_offl.h - * - * Copyright IBM Corp. 2007 - * Author(s): Thomas Spatzier <tspat@de.ibm.com>, - * Frank Blaschka <frank.blaschka@de.ibm.com> - */ - -#ifndef __QETH_CORE_OFFL_H__ -#define __QETH_CORE_OFFL_H__ - -struct qeth_eddp_element { - u32 flags; - u32 length; - void *addr; -}; - -struct qeth_eddp_context { - atomic_t refcnt; - enum qeth_large_send_types type; - int num_pages; /* # of allocated pages */ - u8 **pages; /* pointers to pages */ - int offset; /* offset in ctx during creation */ - int num_elements; /* # of required 'SBALEs' */ - struct qeth_eddp_element *elements; /* array of 'SBALEs' */ - int elements_per_skb; /* # of 'SBALEs' per skb **/ -}; - -struct qeth_eddp_context_reference { - struct list_head list; - struct qeth_eddp_context *ctx; -}; - -struct qeth_eddp_data { - struct qeth_hdr qh; - struct ethhdr mac; - __be16 vlan[2]; - union { - struct { - struct iphdr h; - u8 options[40]; - } ip4; - struct { - struct ipv6hdr h; - } ip6; - } nh; - u8 nhl; - void *nh_in_ctx; /* address of nh within the ctx */ - union { - struct { - struct tcphdr h; - u8 options[40]; - } tcp; - } th; - u8 thl; - void *th_in_ctx; /* address of th within the ctx */ - struct sk_buff *skb; - int skb_offset; - int frag; - int frag_offset; -} __attribute__ ((packed)); - -extern struct qeth_eddp_context *qeth_eddp_create_context(struct qeth_card *, - struct sk_buff *, struct qeth_hdr *, unsigned char); -extern void qeth_eddp_put_context(struct qeth_eddp_context *); -extern int qeth_eddp_fill_buffer(struct qeth_qdio_out_q *, - struct qeth_eddp_context *, int); -extern void qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *); -extern int qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *, - struct qeth_eddp_context *); - -void qeth_tso_fill_header(struct qeth_card *, struct qeth_hdr *, - struct sk_buff *); -void qeth_tx_csum(struct sk_buff *skb); - -#endif /* __QETH_CORE_EDDP_H__ */ diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c index c26e842ad905..568465d7517f 100644 --- a/drivers/s390/net/qeth_core_sys.c +++ b/drivers/s390/net/qeth_core_sys.c @@ -427,8 +427,6 @@ static ssize_t qeth_dev_large_send_show(struct device *dev, switch (card->options.large_send) { case QETH_LARGE_SEND_NO: return sprintf(buf, "%s\n", "no"); - case QETH_LARGE_SEND_EDDP: - return sprintf(buf, "%s\n", "EDDP"); case QETH_LARGE_SEND_TSO: return sprintf(buf, "%s\n", "TSO"); default: @@ -449,8 +447,6 @@ static ssize_t qeth_dev_large_send_store(struct device *dev, tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "no")) { type = QETH_LARGE_SEND_NO; - } else if (!strcmp(tmp, "EDDP")) { - type = QETH_LARGE_SEND_EDDP; } else if (!strcmp(tmp, "TSO")) { type = QETH_LARGE_SEND_TSO; } else { diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 07ab8a5c1c46..172031baedc1 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -21,7 +21,6 @@ #include <linux/ip.h> #include "qeth_core.h" -#include "qeth_core_offl.h" static int qeth_l2_set_offline(struct ccwgroup_device *); static int qeth_l2_stop(struct net_device *); @@ -328,6 +327,10 @@ static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) struct qeth_vlan_vid *id; QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_DBF_TEXT(TRACE, 3, "aidREC"); + return; + } id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); if (id) { id->vid = vid; @@ -344,6 +347,10 @@ static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_DBF_TEXT(TRACE, 3, "kidREC"); + return; + } spin_lock_bh(&card->vlanlock); list_for_each_entry(id, &card->vid_list, list) { if (id->vid == vid) { @@ -379,7 +386,8 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) dev_close(card->dev); rtnl_unlock(); } - if (!card->use_hard_stop) { + if (!card->use_hard_stop || + recovery_mode) { __u8 *mac = &card->dev->dev_addr[0]; rc = qeth_l2_send_delmac(card, mac); QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); @@ -388,7 +396,8 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) } if (card->state == CARD_STATE_SOFTSETUP) { qeth_l2_process_vlans(card, 1); - if (!card->use_hard_stop) + if (!card->use_hard_stop || + recovery_mode) qeth_l2_del_all_mc(card); qeth_clear_ipacmd_list(card); card->state = CARD_STATE_HARDSETUP; @@ -593,6 +602,10 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) } QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_DBF_TEXT(TRACE, 3, "setmcREC"); + return -ERESTARTSYS; + } rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); if (!rc) rc = qeth_l2_send_setmac(card, addr->sa_data); @@ -608,6 +621,9 @@ static void qeth_l2_set_multicast_list(struct net_device *dev) return ; QETH_DBF_TEXT(TRACE, 3, "setmulti"); + if (qeth_threads_running(card, QETH_RECOVER_THREAD) && + (card->state != CARD_STATE_UP)) + return; qeth_l2_del_all_mc(card); spin_lock_bh(&card->mclock); for (dm = dev->mc_list; dm; dm = dm->next) @@ -634,8 +650,6 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) struct qeth_qdio_out_q *queue = card->qdio.out_qs [qeth_get_priority_queue(card, skb, ipv, cast_type)]; int tx_bytes = skb->len; - enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; - struct qeth_eddp_context *ctx = NULL; int data_offset = -1; int elements_needed = 0; int hd_len = 0; @@ -655,14 +669,10 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } netif_stop_queue(dev); - if (skb_is_gso(skb)) - large_send = QETH_LARGE_SEND_EDDP; - if (card->info.type == QETH_CARD_TYPE_OSN) hdr = (struct qeth_hdr *)skb->data; else { - if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && - (skb_shinfo(skb)->nr_frags == 0)) { + if (card->info.type == QETH_CARD_TYPE_IQD) { new_skb = skb; data_offset = ETH_HLEN; hd_len = ETH_HLEN; @@ -689,59 +699,26 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } - if (large_send == QETH_LARGE_SEND_EDDP) { - ctx = qeth_eddp_create_context(card, new_skb, hdr, - skb->sk->sk_protocol); - if (ctx == NULL) { - QETH_DBF_MESSAGE(2, "could not create eddp context\n"); - goto tx_drop; - } - } else { - elements = qeth_get_elements_no(card, (void *)hdr, new_skb, + elements = qeth_get_elements_no(card, (void *)hdr, new_skb, elements_needed); - if (!elements) { - if (data_offset >= 0) - kmem_cache_free(qeth_core_header_cache, hdr); - goto tx_drop; - } + if (!elements) { + if (data_offset >= 0) + kmem_cache_free(qeth_core_header_cache, hdr); + goto tx_drop; } - if ((large_send == QETH_LARGE_SEND_NO) && - (skb->ip_summed == CHECKSUM_PARTIAL)) - qeth_tx_csum(new_skb); - if (card->info.type != QETH_CARD_TYPE_IQD) rc = qeth_do_send_packet(card, queue, new_skb, hdr, - elements, ctx); + elements); else rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, - elements, ctx, data_offset, hd_len); + elements, data_offset, hd_len); if (!rc) { card->stats.tx_packets++; card->stats.tx_bytes += tx_bytes; if (new_skb != skb) dev_kfree_skb_any(skb); - if (card->options.performance_stats) { - if (large_send != QETH_LARGE_SEND_NO) { - card->perf_stats.large_send_bytes += tx_bytes; - card->perf_stats.large_send_cnt++; - } - if (skb_shinfo(new_skb)->nr_frags > 0) { - card->perf_stats.sg_skbs_sent++; - /* nr_frags + skb->data */ - card->perf_stats.sg_frags_sent += - skb_shinfo(new_skb)->nr_frags + 1; - } - } - - if (ctx != NULL) { - qeth_eddp_put_context(ctx); - dev_kfree_skb_any(new_skb); - } } else { - if (ctx != NULL) - qeth_eddp_put_context(ctx); - if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); @@ -878,30 +855,8 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) return; } -static int qeth_l2_ethtool_set_tso(struct net_device *dev, u32 data) -{ - struct qeth_card *card = dev->ml_priv; - - if (data) { - if (card->options.large_send == QETH_LARGE_SEND_NO) { - card->options.large_send = QETH_LARGE_SEND_EDDP; - dev->features |= NETIF_F_TSO; - } - } else { - dev->features &= ~NETIF_F_TSO; - card->options.large_send = QETH_LARGE_SEND_NO; - } - return 0; -} - static struct ethtool_ops qeth_l2_ethtool_ops = { .get_link = ethtool_op_get_link, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = ethtool_op_set_tx_hw_csum, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tso = ethtool_op_get_tso, - .set_tso = qeth_l2_ethtool_set_tso, .get_strings = qeth_core_get_strings, .get_ethtool_stats = qeth_core_get_ethtool_stats, .get_stats_count = qeth_core_get_stats_count, diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 3d04920b9bb9..0ba3817cb6a7 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -19,15 +19,15 @@ #include <linux/etherdevice.h> #include <linux/mii.h> #include <linux/ip.h> -#include <linux/reboot.h> +#include <linux/ipv6.h> #include <linux/inetdevice.h> #include <linux/igmp.h> #include <net/ip.h> #include <net/arp.h> +#include <net/ip6_checksum.h> #include "qeth_l3.h" -#include "qeth_core_offl.h" static int qeth_l3_set_offline(struct ccwgroup_device *); static int qeth_l3_recover(void *); @@ -1038,7 +1038,7 @@ static int qeth_l3_setadapter_parms(struct qeth_card *card) rc = qeth_query_setadapterparms(card); if (rc) { QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: " - "0x%x\n", card->gdev->dev.bus_id, rc); + "0x%x\n", dev_name(&card->gdev->dev), rc); return rc; } if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) { @@ -1838,6 +1838,10 @@ static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) unsigned long flags; QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { + QETH_DBF_TEXT(TRACE, 3, "kidREC"); + return; + } spin_lock_irqsave(&card->vlanlock, flags); /* unregister IP addresses of vlan device */ qeth_l3_free_vlan_addresses(card, vid); @@ -2101,6 +2105,9 @@ static void qeth_l3_set_multicast_list(struct net_device *dev) struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 3, "setmulti"); + if (qeth_threads_running(card, QETH_RECOVER_THREAD) && + (card->state != CARD_STATE_UP)) + return; qeth_l3_delete_mc_addresses(card); qeth_l3_add_multicast_ipv4(card); #ifdef CONFIG_QETH_IPV6 @@ -2577,12 +2584,63 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, } } +static void qeth_tso_fill_header(struct qeth_card *card, + struct qeth_hdr *qhdr, struct sk_buff *skb) +{ + struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; + struct tcphdr *tcph = tcp_hdr(skb); + struct iphdr *iph = ip_hdr(skb); + struct ipv6hdr *ip6h = ipv6_hdr(skb); + + /*fix header to TSO values ...*/ + hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; + /*set values which are fix for the first approach ...*/ + hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); + hdr->ext.imb_hdr_no = 1; + hdr->ext.hdr_type = 1; + hdr->ext.hdr_version = 1; + hdr->ext.hdr_len = 28; + /*insert non-fix values */ + hdr->ext.mss = skb_shinfo(skb)->gso_size; + hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); + hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - + sizeof(struct qeth_hdr_tso)); + tcph->check = 0; + if (skb->protocol == ETH_P_IPV6) { + ip6h->payload_len = 0; + tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, + 0, IPPROTO_TCP, 0); + } else { + /*OSA want us to set these values ...*/ + tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, + 0, IPPROTO_TCP, 0); + iph->tot_len = 0; + iph->check = 0; + } +} + +static void qeth_tx_csum(struct sk_buff *skb) +{ + __wsum csum; + int offset; + + skb_set_transport_header(skb, skb->csum_start - skb_headroom(skb)); + offset = skb->csum_start - skb_headroom(skb); + BUG_ON(offset >= skb_headlen(skb)); + csum = skb_checksum(skb, offset, skb->len - offset, 0); + + offset += skb->csum_offset; + BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb)); + *(__sum16 *)(skb->data + offset) = csum_fold(csum); +} + static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { int rc; u16 *tag; struct qeth_hdr *hdr = NULL; int elements_needed = 0; + int elems; struct qeth_card *card = dev->ml_priv; struct sk_buff *new_skb = NULL; int ipv = qeth_get_ip_version(skb); @@ -2591,8 +2649,8 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) [qeth_get_priority_queue(card, skb, ipv, cast_type)]; int tx_bytes = skb->len; enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; - struct qeth_eddp_context *ctx = NULL; int data_offset = -1; + int nr_frags; if ((card->info.type == QETH_CARD_TYPE_IQD) && (skb->protocol != htons(ETH_P_IPV6)) && @@ -2615,6 +2673,12 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (skb_is_gso(skb)) large_send = card->options.large_send; + else + if (skb->ip_summed == CHECKSUM_PARTIAL) { + qeth_tx_csum(skb); + if (card->options.performance_stats) + card->perf_stats.tx_csum++; + } if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && (skb_shinfo(skb)->nr_frags == 0)) { @@ -2661,12 +2725,13 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) netif_stop_queue(dev); /* fix hardware limitation: as long as we do not have sbal - * chaining we can not send long frag lists so we temporary - * switch to EDDP + * chaining we can not send long frag lists */ if ((large_send == QETH_LARGE_SEND_TSO) && - ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) - large_send = QETH_LARGE_SEND_EDDP; + ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) { + if (skb_linearize(new_skb)) + goto tx_drop; + } if ((large_send == QETH_LARGE_SEND_TSO) && (cast_type == RTN_UNSPEC)) { @@ -2689,37 +2754,22 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) } } - if (large_send == QETH_LARGE_SEND_EDDP) { - /* new_skb is not owned by a socket so we use skb to get - * the protocol - */ - ctx = qeth_eddp_create_context(card, new_skb, hdr, - skb->sk->sk_protocol); - if (ctx == NULL) { - QETH_DBF_MESSAGE(2, "could not create eddp context\n"); - goto tx_drop; - } - } else { - int elems = qeth_get_elements_no(card, (void *)hdr, new_skb, + elems = qeth_get_elements_no(card, (void *)hdr, new_skb, elements_needed); - if (!elems) { - if (data_offset >= 0) - kmem_cache_free(qeth_core_header_cache, hdr); - goto tx_drop; - } - elements_needed += elems; + if (!elems) { + if (data_offset >= 0) + kmem_cache_free(qeth_core_header_cache, hdr); + goto tx_drop; } - - if ((large_send == QETH_LARGE_SEND_NO) && - (new_skb->ip_summed == CHECKSUM_PARTIAL)) - qeth_tx_csum(new_skb); + elements_needed += elems; + nr_frags = skb_shinfo(new_skb)->nr_frags; if (card->info.type != QETH_CARD_TYPE_IQD) rc = qeth_do_send_packet(card, queue, new_skb, hdr, - elements_needed, ctx); + elements_needed); else rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, - elements_needed, ctx, data_offset, 0); + elements_needed, data_offset, 0); if (!rc) { card->stats.tx_packets++; @@ -2731,22 +2781,13 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) card->perf_stats.large_send_bytes += tx_bytes; card->perf_stats.large_send_cnt++; } - if (skb_shinfo(new_skb)->nr_frags > 0) { + if (nr_frags) { card->perf_stats.sg_skbs_sent++; /* nr_frags + skb->data */ - card->perf_stats.sg_frags_sent += - skb_shinfo(new_skb)->nr_frags + 1; + card->perf_stats.sg_frags_sent += nr_frags + 1; } } - - if (ctx != NULL) { - qeth_eddp_put_context(ctx); - dev_kfree_skb_any(new_skb); - } } else { - if (ctx != NULL) - qeth_eddp_put_context(ctx); - if (data_offset >= 0) kmem_cache_free(qeth_core_header_cache, hdr); @@ -2841,7 +2882,7 @@ static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) if (data) { if (card->options.large_send == QETH_LARGE_SEND_NO) { if (card->info.type == QETH_CARD_TYPE_IQD) - card->options.large_send = QETH_LARGE_SEND_EDDP; + return -EPERM; else card->options.large_send = QETH_LARGE_SEND_TSO; dev->features |= NETIF_F_TSO; diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c deleted file mode 100644 index 92b0417f8e12..000000000000 --- a/drivers/s390/s390mach.c +++ /dev/null @@ -1,538 +0,0 @@ -/* - * drivers/s390/s390mach.c - * S/390 machine check handler - * - * Copyright IBM Corp. 2000,2008 - * Author(s): Ingo Adlung (adlung@de.ibm.com) - * Martin Schwidefsky (schwidefsky@de.ibm.com) - * Cornelia Huck <cornelia.huck@de.ibm.com> - */ - -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/errno.h> -#include <linux/workqueue.h> -#include <linux/time.h> -#include <linux/device.h> -#include <linux/kthread.h> -#include <asm/etr.h> -#include <asm/lowcore.h> -#include <asm/cio.h> -#include <asm/cpu.h> -#include "s390mach.h" - -static struct semaphore m_sem; - -static NORET_TYPE void -s390_handle_damage(char *msg) -{ -#ifdef CONFIG_SMP - smp_send_stop(); -#endif - disabled_wait((unsigned long) __builtin_return_address(0)); - for(;;); -} - -static crw_handler_t crw_handlers[NR_RSCS]; - -/** - * s390_register_crw_handler() - register a channel report word handler - * @rsc: reporting source code to handle - * @handler: handler to be registered - * - * Returns %0 on success and a negative error value otherwise. - */ -int s390_register_crw_handler(int rsc, crw_handler_t handler) -{ - if ((rsc < 0) || (rsc >= NR_RSCS)) - return -EINVAL; - if (!cmpxchg(&crw_handlers[rsc], NULL, handler)) - return 0; - return -EBUSY; -} - -/** - * s390_unregister_crw_handler() - unregister a channel report word handler - * @rsc: reporting source code to handle - */ -void s390_unregister_crw_handler(int rsc) -{ - if ((rsc < 0) || (rsc >= NR_RSCS)) - return; - xchg(&crw_handlers[rsc], NULL); - synchronize_sched(); -} - -/* - * Retrieve CRWs and call function to handle event. - */ -static int s390_collect_crw_info(void *param) -{ - struct crw crw[2]; - int ccode; - struct semaphore *sem; - unsigned int chain; - int ignore; - - sem = (struct semaphore *)param; -repeat: - ignore = down_interruptible(sem); - chain = 0; - while (1) { - if (unlikely(chain > 1)) { - struct crw tmp_crw; - - printk(KERN_WARNING"%s: Code does not support more " - "than two chained crws; please report to " - "linux390@de.ibm.com!\n", __func__); - ccode = stcrw(&tmp_crw); - printk(KERN_WARNING"%s: crw reports slct=%d, oflw=%d, " - "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", - __func__, tmp_crw.slct, tmp_crw.oflw, - tmp_crw.chn, tmp_crw.rsc, tmp_crw.anc, - tmp_crw.erc, tmp_crw.rsid); - printk(KERN_WARNING"%s: This was crw number %x in the " - "chain\n", __func__, chain); - if (ccode != 0) - break; - chain = tmp_crw.chn ? chain + 1 : 0; - continue; - } - ccode = stcrw(&crw[chain]); - if (ccode != 0) - break; - printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, " - "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", - crw[chain].slct, crw[chain].oflw, crw[chain].chn, - crw[chain].rsc, crw[chain].anc, crw[chain].erc, - crw[chain].rsid); - /* Check for overflows. */ - if (crw[chain].oflw) { - int i; - - pr_debug("%s: crw overflow detected!\n", __func__); - for (i = 0; i < NR_RSCS; i++) { - if (crw_handlers[i]) - crw_handlers[i](NULL, NULL, 1); - } - chain = 0; - continue; - } - if (crw[0].chn && !chain) { - chain++; - continue; - } - if (crw_handlers[crw[chain].rsc]) - crw_handlers[crw[chain].rsc](&crw[0], - chain ? &crw[1] : NULL, - 0); - /* chain is always 0 or 1 here. */ - chain = crw[chain].chn ? chain + 1 : 0; - } - goto repeat; - return 0; -} - -struct mcck_struct { - int kill_task; - int channel_report; - int warning; - unsigned long long mcck_code; -}; - -static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck); - -/* - * Main machine check handler function. Will be called with interrupts enabled - * or disabled and machine checks enabled or disabled. - */ -void -s390_handle_mcck(void) -{ - unsigned long flags; - struct mcck_struct mcck; - - /* - * Disable machine checks and get the current state of accumulated - * machine checks. Afterwards delete the old state and enable machine - * checks again. - */ - local_irq_save(flags); - local_mcck_disable(); - mcck = __get_cpu_var(cpu_mcck); - memset(&__get_cpu_var(cpu_mcck), 0, sizeof(struct mcck_struct)); - clear_thread_flag(TIF_MCCK_PENDING); - local_mcck_enable(); - local_irq_restore(flags); - - if (mcck.channel_report) - up(&m_sem); - -#ifdef CONFIG_MACHCHK_WARNING -/* - * The warning may remain for a prolonged period on the bare iron. - * (actually till the machine is powered off, or until the problem is gone) - * So we just stop listening for the WARNING MCH and prevent continuously - * being interrupted. One caveat is however, that we must do this per - * processor and cannot use the smp version of ctl_clear_bit(). - * On VM we only get one interrupt per virtally presented machinecheck. - * Though one suffices, we may get one interrupt per (virtual) processor. - */ - if (mcck.warning) { /* WARNING pending ? */ - static int mchchk_wng_posted = 0; - /* - * Use single machine clear, as we cannot handle smp right now - */ - __ctl_clear_bit(14, 24); /* Disable WARNING MCH */ - if (xchg(&mchchk_wng_posted, 1) == 0) - kill_cad_pid(SIGPWR, 1); - } -#endif - - if (mcck.kill_task) { - local_irq_enable(); - printk(KERN_EMERG "mcck: Terminating task because of machine " - "malfunction (code 0x%016llx).\n", mcck.mcck_code); - printk(KERN_EMERG "mcck: task: %s, pid: %d.\n", - current->comm, current->pid); - do_exit(SIGSEGV); - } -} -EXPORT_SYMBOL_GPL(s390_handle_mcck); - -/* - * returns 0 if all registers could be validated - * returns 1 otherwise - */ -static int -s390_revalidate_registers(struct mci *mci) -{ - int kill_task; - u64 tmpclock; - u64 zero; - void *fpt_save_area, *fpt_creg_save_area; - - kill_task = 0; - zero = 0; - /* General purpose registers */ - if (!mci->gr) - /* - * General purpose registers couldn't be restored and have - * unknown contents. Process needs to be terminated. - */ - kill_task = 1; - - /* Revalidate floating point registers */ - if (!mci->fp) - /* - * Floating point registers can't be restored and - * therefore the process needs to be terminated. - */ - kill_task = 1; - -#ifndef CONFIG_64BIT - asm volatile( - " ld 0,0(%0)\n" - " ld 2,8(%0)\n" - " ld 4,16(%0)\n" - " ld 6,24(%0)" - : : "a" (&S390_lowcore.floating_pt_save_area)); -#endif - - if (MACHINE_HAS_IEEE) { -#ifdef CONFIG_64BIT - fpt_save_area = &S390_lowcore.floating_pt_save_area; - fpt_creg_save_area = &S390_lowcore.fpt_creg_save_area; -#else - fpt_save_area = (void *) S390_lowcore.extended_save_area_addr; - fpt_creg_save_area = fpt_save_area+128; -#endif - /* Floating point control register */ - if (!mci->fc) { - /* - * Floating point control register can't be restored. - * Task will be terminated. - */ - asm volatile("lfpc 0(%0)" : : "a" (&zero), "m" (zero)); - kill_task = 1; - - } else - asm volatile("lfpc 0(%0)" : : "a" (fpt_creg_save_area)); - - asm volatile( - " ld 0,0(%0)\n" - " ld 1,8(%0)\n" - " ld 2,16(%0)\n" - " ld 3,24(%0)\n" - " ld 4,32(%0)\n" - " ld 5,40(%0)\n" - " ld 6,48(%0)\n" - " ld 7,56(%0)\n" - " ld 8,64(%0)\n" - " ld 9,72(%0)\n" - " ld 10,80(%0)\n" - " ld 11,88(%0)\n" - " ld 12,96(%0)\n" - " ld 13,104(%0)\n" - " ld 14,112(%0)\n" - " ld 15,120(%0)\n" - : : "a" (fpt_save_area)); - } - - /* Revalidate access registers */ - asm volatile( - " lam 0,15,0(%0)" - : : "a" (&S390_lowcore.access_regs_save_area)); - if (!mci->ar) - /* - * Access registers have unknown contents. - * Terminating task. - */ - kill_task = 1; - - /* Revalidate control registers */ - if (!mci->cr) - /* - * Control registers have unknown contents. - * Can't recover and therefore stopping machine. - */ - s390_handle_damage("invalid control registers."); - else -#ifdef CONFIG_64BIT - asm volatile( - " lctlg 0,15,0(%0)" - : : "a" (&S390_lowcore.cregs_save_area)); -#else - asm volatile( - " lctl 0,15,0(%0)" - : : "a" (&S390_lowcore.cregs_save_area)); -#endif - - /* - * We don't even try to revalidate the TOD register, since we simply - * can't write something sensible into that register. - */ - -#ifdef CONFIG_64BIT - /* - * See if we can revalidate the TOD programmable register with its - * old contents (should be zero) otherwise set it to zero. - */ - if (!mci->pr) - asm volatile( - " sr 0,0\n" - " sckpf" - : : : "0", "cc"); - else - asm volatile( - " l 0,0(%0)\n" - " sckpf" - : : "a" (&S390_lowcore.tod_progreg_save_area) - : "0", "cc"); -#endif - - /* Revalidate clock comparator register */ - asm volatile( - " stck 0(%1)\n" - " sckc 0(%1)" - : "=m" (tmpclock) : "a" (&(tmpclock)) : "cc", "memory"); - - /* Check if old PSW is valid */ - if (!mci->wp) - /* - * Can't tell if we come from user or kernel mode - * -> stopping machine. - */ - s390_handle_damage("old psw invalid."); - - if (!mci->ms || !mci->pm || !mci->ia) - kill_task = 1; - - return kill_task; -} - -#define MAX_IPD_COUNT 29 -#define MAX_IPD_TIME (5 * 60 * USEC_PER_SEC) /* 5 minutes */ - -/* - * machine check handler. - */ -void -s390_do_machine_check(struct pt_regs *regs) -{ - static DEFINE_SPINLOCK(ipd_lock); - static unsigned long long last_ipd; - static int ipd_count; - unsigned long long tmp; - struct mci *mci; - struct mcck_struct *mcck; - int umode; - - lockdep_off(); - - s390_idle_check(); - - mci = (struct mci *) &S390_lowcore.mcck_interruption_code; - mcck = &__get_cpu_var(cpu_mcck); - umode = user_mode(regs); - - if (mci->sd) - /* System damage -> stopping machine */ - s390_handle_damage("received system damage machine check."); - - if (mci->pd) { - if (mci->b) { - /* Processing backup -> verify if we can survive this */ - u64 z_mcic, o_mcic, t_mcic; -#ifdef CONFIG_64BIT - z_mcic = (1ULL<<63 | 1ULL<<59 | 1ULL<<29); - o_mcic = (1ULL<<43 | 1ULL<<42 | 1ULL<<41 | 1ULL<<40 | - 1ULL<<36 | 1ULL<<35 | 1ULL<<34 | 1ULL<<32 | - 1ULL<<30 | 1ULL<<21 | 1ULL<<20 | 1ULL<<17 | - 1ULL<<16); -#else - z_mcic = (1ULL<<63 | 1ULL<<59 | 1ULL<<57 | 1ULL<<50 | - 1ULL<<29); - o_mcic = (1ULL<<43 | 1ULL<<42 | 1ULL<<41 | 1ULL<<40 | - 1ULL<<36 | 1ULL<<35 | 1ULL<<34 | 1ULL<<32 | - 1ULL<<30 | 1ULL<<20 | 1ULL<<17 | 1ULL<<16); -#endif - t_mcic = *(u64 *)mci; - - if (((t_mcic & z_mcic) != 0) || - ((t_mcic & o_mcic) != o_mcic)) { - s390_handle_damage("processing backup machine " - "check with damage."); - } - - /* - * Nullifying exigent condition, therefore we might - * retry this instruction. - */ - - spin_lock(&ipd_lock); - - tmp = get_clock(); - - if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME) - ipd_count++; - else - ipd_count = 1; - - last_ipd = tmp; - - if (ipd_count == MAX_IPD_COUNT) - s390_handle_damage("too many ipd retries."); - - spin_unlock(&ipd_lock); - } - else { - /* Processing damage -> stopping machine */ - s390_handle_damage("received instruction processing " - "damage machine check."); - } - } - if (s390_revalidate_registers(mci)) { - if (umode) { - /* - * Couldn't restore all register contents while in - * user mode -> mark task for termination. - */ - mcck->kill_task = 1; - mcck->mcck_code = *(unsigned long long *) mci; - set_thread_flag(TIF_MCCK_PENDING); - } - else - /* - * Couldn't restore all register contents while in - * kernel mode -> stopping machine. - */ - s390_handle_damage("unable to revalidate registers."); - } - - if (mci->cd) { - /* Timing facility damage */ - s390_handle_damage("TOD clock damaged"); - } - - if (mci->ed && mci->ec) { - /* External damage */ - if (S390_lowcore.external_damage_code & (1U << ED_ETR_SYNC)) - etr_sync_check(); - if (S390_lowcore.external_damage_code & (1U << ED_ETR_SWITCH)) - etr_switch_to_local(); - if (S390_lowcore.external_damage_code & (1U << ED_STP_SYNC)) - stp_sync_check(); - if (S390_lowcore.external_damage_code & (1U << ED_STP_ISLAND)) - stp_island_check(); - } - - if (mci->se) - /* Storage error uncorrected */ - s390_handle_damage("received storage error uncorrected " - "machine check."); - - if (mci->ke) - /* Storage key-error uncorrected */ - s390_handle_damage("received storage key-error uncorrected " - "machine check."); - - if (mci->ds && mci->fa) - /* Storage degradation */ - s390_handle_damage("received storage degradation machine " - "check."); - - if (mci->cp) { - /* Channel report word pending */ - mcck->channel_report = 1; - set_thread_flag(TIF_MCCK_PENDING); - } - - if (mci->w) { - /* Warning pending */ - mcck->warning = 1; - set_thread_flag(TIF_MCCK_PENDING); - } - lockdep_on(); -} - -/* - * s390_init_machine_check - * - * initialize machine check handling - */ -static int -machine_check_init(void) -{ - init_MUTEX_LOCKED(&m_sem); - ctl_set_bit(14, 25); /* enable external damage MCH */ - ctl_set_bit(14, 27); /* enable system recovery MCH */ -#ifdef CONFIG_MACHCHK_WARNING - ctl_set_bit(14, 24); /* enable warning MCH */ -#endif - return 0; -} - -/* - * Initialize the machine check handler really early to be able to - * catch all machine checks that happen during boot - */ -arch_initcall(machine_check_init); - -/* - * Machine checks for the channel subsystem must be enabled - * after the channel subsystem is initialized - */ -static int __init -machine_check_crw_init (void) -{ - struct task_struct *task; - - task = kthread_run(s390_collect_crw_info, &m_sem, "kmcheck"); - if (IS_ERR(task)) - return PTR_ERR(task); - ctl_set_bit(14, 28); /* enable channel report MCH */ - return 0; -} - -device_initcall (machine_check_crw_init); diff --git a/drivers/s390/s390mach.h b/drivers/s390/s390mach.h deleted file mode 100644 index d39f8b697d27..000000000000 --- a/drivers/s390/s390mach.h +++ /dev/null @@ -1,122 +0,0 @@ -/* - * drivers/s390/s390mach.h - * S/390 data definitions for machine check processing - * - * S390 version - * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Ingo Adlung (adlung@de.ibm.com) - */ - -#ifndef __s390mach_h -#define __s390mach_h - -#include <asm/types.h> - -struct mci { - __u32 sd : 1; /* 00 system damage */ - __u32 pd : 1; /* 01 instruction-processing damage */ - __u32 sr : 1; /* 02 system recovery */ - __u32 to_be_defined_1 : 1; /* 03 */ - __u32 cd : 1; /* 04 timing-facility damage */ - __u32 ed : 1; /* 05 external damage */ - __u32 to_be_defined_2 : 1; /* 06 */ - __u32 dg : 1; /* 07 degradation */ - __u32 w : 1; /* 08 warning pending */ - __u32 cp : 1; /* 09 channel-report pending */ - __u32 sp : 1; /* 10 service-processor damage */ - __u32 ck : 1; /* 11 channel-subsystem damage */ - __u32 to_be_defined_3 : 2; /* 12-13 */ - __u32 b : 1; /* 14 backed up */ - __u32 to_be_defined_4 : 1; /* 15 */ - __u32 se : 1; /* 16 storage error uncorrected */ - __u32 sc : 1; /* 17 storage error corrected */ - __u32 ke : 1; /* 18 storage-key error uncorrected */ - __u32 ds : 1; /* 19 storage degradation */ - __u32 wp : 1; /* 20 psw mwp validity */ - __u32 ms : 1; /* 21 psw mask and key validity */ - __u32 pm : 1; /* 22 psw program mask and cc validity */ - __u32 ia : 1; /* 23 psw instruction address validity */ - __u32 fa : 1; /* 24 failing storage address validity */ - __u32 to_be_defined_5 : 1; /* 25 */ - __u32 ec : 1; /* 26 external damage code validity */ - __u32 fp : 1; /* 27 floating point register validity */ - __u32 gr : 1; /* 28 general register validity */ - __u32 cr : 1; /* 29 control register validity */ - __u32 to_be_defined_6 : 1; /* 30 */ - __u32 st : 1; /* 31 storage logical validity */ - __u32 ie : 1; /* 32 indirect storage error */ - __u32 ar : 1; /* 33 access register validity */ - __u32 da : 1; /* 34 delayed access exception */ - __u32 to_be_defined_7 : 7; /* 35-41 */ - __u32 pr : 1; /* 42 tod programmable register validity */ - __u32 fc : 1; /* 43 fp control register validity */ - __u32 ap : 1; /* 44 ancillary report */ - __u32 to_be_defined_8 : 1; /* 45 */ - __u32 ct : 1; /* 46 cpu timer validity */ - __u32 cc : 1; /* 47 clock comparator validity */ - __u32 to_be_defined_9 : 16; /* 47-63 */ -}; - -/* - * Channel Report Word - */ -struct crw { - __u32 res1 : 1; /* reserved zero */ - __u32 slct : 1; /* solicited */ - __u32 oflw : 1; /* overflow */ - __u32 chn : 1; /* chained */ - __u32 rsc : 4; /* reporting source code */ - __u32 anc : 1; /* ancillary report */ - __u32 res2 : 1; /* reserved zero */ - __u32 erc : 6; /* error-recovery code */ - __u32 rsid : 16; /* reporting-source ID */ -} __attribute__ ((packed)); - -typedef void (*crw_handler_t)(struct crw *, struct crw *, int); - -extern int s390_register_crw_handler(int rsc, crw_handler_t handler); -extern void s390_unregister_crw_handler(int rsc); - -#define NR_RSCS 16 - -#define CRW_RSC_MONITOR 0x2 /* monitoring facility */ -#define CRW_RSC_SCH 0x3 /* subchannel */ -#define CRW_RSC_CPATH 0x4 /* channel path */ -#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */ -#define CRW_RSC_CSS 0xB /* channel subsystem */ - -#define CRW_ERC_EVENT 0x00 /* event information pending */ -#define CRW_ERC_AVAIL 0x01 /* available */ -#define CRW_ERC_INIT 0x02 /* initialized */ -#define CRW_ERC_TERROR 0x03 /* temporary error */ -#define CRW_ERC_IPARM 0x04 /* installed parm initialized */ -#define CRW_ERC_TERM 0x05 /* terminal */ -#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */ -#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */ -#define CRW_ERC_PMOD 0x08 /* installed parameters modified */ - -static inline int stcrw(struct crw *pcrw ) -{ - int ccode; - - __asm__ __volatile__( - "stcrw 0(%2)\n\t" - "ipm %0\n\t" - "srl %0,28\n\t" - : "=d" (ccode), "=m" (*pcrw) - : "a" (pcrw) - : "cc" ); - return ccode; -} - -#define ED_ETR_SYNC 12 /* External damage ETR sync check */ -#define ED_ETR_SWITCH 13 /* External damage ETR switch to local */ - -#define ED_STP_SYNC 7 /* External damage STP sync check */ -#define ED_STP_ISLAND 6 /* External damage STP island check */ - -struct pt_regs; - -void s390_handle_mcck(void); -void s390_do_machine_check(struct pt_regs *regs); -#endif /* __s390mach */ diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 8af7dfbe022c..616c60ffcf2c 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -3,7 +3,7 @@ * * Module interface and handling of zfcp data structures. * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ /* @@ -249,8 +249,8 @@ struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter, struct zfcp_port *port; list_for_each_entry(port, &adapter->port_list_head, list) - if ((port->wwpn == wwpn) && !(atomic_read(&port->status) & - (ZFCP_STATUS_PORT_NO_WWPN | ZFCP_STATUS_COMMON_REMOVE))) + if ((port->wwpn == wwpn) && + !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_REMOVE)) return port; return NULL; } @@ -421,7 +421,8 @@ int zfcp_status_read_refill(struct zfcp_adapter *adapter) while (atomic_read(&adapter->stat_miss) > 0) if (zfcp_fsf_status_read(adapter)) { if (atomic_read(&adapter->stat_miss) >= 16) { - zfcp_erp_adapter_reopen(adapter, 0, 103, NULL); + zfcp_erp_adapter_reopen(adapter, 0, "axsref1", + NULL); return 1; } break; @@ -501,6 +502,7 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device) spin_lock_init(&adapter->scsi_dbf_lock); spin_lock_init(&adapter->rec_dbf_lock); spin_lock_init(&adapter->req_q_lock); + spin_lock_init(&adapter->qdio_stat_lock); rwlock_init(&adapter->erp_lock); rwlock_init(&adapter->abort_lock); @@ -522,7 +524,6 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device) goto sysfs_failed; atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status); - zfcp_fc_nameserver_init(adapter); if (!zfcp_adapter_scsi_register(adapter)) return 0; @@ -552,6 +553,7 @@ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter) cancel_work_sync(&adapter->scan_work); cancel_work_sync(&adapter->stat_work); + cancel_delayed_work_sync(&adapter->nsp.work); zfcp_adapter_scsi_unregister(adapter); sysfs_remove_group(&adapter->ccw_device->dev.kobj, &zfcp_sysfs_adapter_attrs); @@ -603,10 +605,13 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn, init_waitqueue_head(&port->remove_wq); INIT_LIST_HEAD(&port->unit_list_head); INIT_WORK(&port->gid_pn_work, zfcp_erp_port_strategy_open_lookup); + INIT_WORK(&port->test_link_work, zfcp_fc_link_test_work); + INIT_WORK(&port->rport_work, zfcp_scsi_rport_work); port->adapter = adapter; port->d_id = d_id; port->wwpn = wwpn; + port->rport_task = RPORT_NONE; /* mark port unusable as long as sysfs registration is not complete */ atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status); @@ -620,11 +625,10 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn, dev_set_drvdata(&port->sysfs_device, port); read_lock_irq(&zfcp_data.config_lock); - if (!(status & ZFCP_STATUS_PORT_NO_WWPN)) - if (zfcp_get_port_by_wwpn(adapter, wwpn)) { - read_unlock_irq(&zfcp_data.config_lock); - goto err_out_free; - } + if (zfcp_get_port_by_wwpn(adapter, wwpn)) { + read_unlock_irq(&zfcp_data.config_lock); + goto err_out_free; + } read_unlock_irq(&zfcp_data.config_lock); if (device_register(&port->sysfs_device)) diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 285881f07648..cfb0dcb6e3ff 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -3,7 +3,7 @@ * * Registration and callback for the s390 common I/O layer. * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ #define KMSG_COMPONENT "zfcp" @@ -72,8 +72,7 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device) list_for_each_entry_safe(port, p, &port_remove_lh, list) { list_for_each_entry_safe(unit, u, &unit_remove_lh, list) { - if (atomic_read(&unit->status) & - ZFCP_STATUS_UNIT_REGISTERED) + if (unit->device) scsi_remove_device(unit->device); zfcp_unit_dequeue(unit); } @@ -109,11 +108,12 @@ static int zfcp_ccw_set_online(struct ccw_device *ccw_device) /* initialize request counter */ BUG_ON(!zfcp_reqlist_isempty(adapter)); adapter->req_no = 0; + zfcp_fc_nameserver_init(adapter); - zfcp_erp_modify_adapter_status(adapter, 10, NULL, + zfcp_erp_modify_adapter_status(adapter, "ccsonl1", NULL, ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); - zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 85, - NULL); + zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, + "ccsonl2", NULL); zfcp_erp_wait(adapter); up(&zfcp_data.config_sema); flush_work(&adapter->scan_work); @@ -137,7 +137,7 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device) down(&zfcp_data.config_sema); adapter = dev_get_drvdata(&ccw_device->dev); - zfcp_erp_adapter_shutdown(adapter, 0, 86, NULL); + zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL); zfcp_erp_wait(adapter); zfcp_erp_thread_kill(adapter); up(&zfcp_data.config_sema); @@ -160,21 +160,26 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event) case CIO_GONE: dev_warn(&adapter->ccw_device->dev, "The FCP device has been detached\n"); - zfcp_erp_adapter_shutdown(adapter, 0, 87, NULL); + zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1", NULL); break; case CIO_NO_PATH: dev_warn(&adapter->ccw_device->dev, "The CHPID for the FCP device is offline\n"); - zfcp_erp_adapter_shutdown(adapter, 0, 88, NULL); + zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2", NULL); break; case CIO_OPER: dev_info(&adapter->ccw_device->dev, "The FCP device is operational again\n"); - zfcp_erp_modify_adapter_status(adapter, 11, NULL, + zfcp_erp_modify_adapter_status(adapter, "ccnoti3", NULL, ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, - 89, NULL); + "ccnoti4", NULL); + break; + case CIO_BOXED: + dev_warn(&adapter->ccw_device->dev, + "The ccw device did not respond in time.\n"); + zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5", NULL); break; } return 1; @@ -190,7 +195,7 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev) down(&zfcp_data.config_sema); adapter = dev_get_drvdata(&cdev->dev); - zfcp_erp_adapter_shutdown(adapter, 0, 90, NULL); + zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL); zfcp_erp_wait(adapter); up(&zfcp_data.config_sema); } diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index cb6df609953e..0a1a5dd8d018 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -490,172 +490,17 @@ static const char *zfcp_rec_dbf_tags[] = { [ZFCP_REC_DBF_ID_ACTION] = "action", }; -static const char *zfcp_rec_dbf_ids[] = { - [1] = "new", - [2] = "ready", - [3] = "kill", - [4] = "down sleep", - [5] = "down wakeup", - [6] = "down sleep ecd", - [7] = "down wakeup ecd", - [8] = "down sleep epd", - [9] = "down wakeup epd", - [10] = "online", - [11] = "operational", - [12] = "scsi slave destroy", - [13] = "propagate failed adapter", - [14] = "propagate failed port", - [15] = "block adapter", - [16] = "unblock adapter", - [17] = "block port", - [18] = "unblock port", - [19] = "block unit", - [20] = "unblock unit", - [21] = "unit recovery failed", - [22] = "port recovery failed", - [23] = "adapter recovery failed", - [24] = "qdio queues down", - [25] = "p2p failed", - [26] = "nameserver lookup failed", - [27] = "nameserver port failed", - [28] = "link up", - [29] = "link down", - [30] = "link up status read", - [31] = "open port failed", - [32] = "", - [33] = "close port", - [34] = "open unit failed", - [35] = "exclusive open unit failed", - [36] = "shared open unit failed", - [37] = "link down", - [38] = "link down status read no link", - [39] = "link down status read fdisc login", - [40] = "link down status read firmware update", - [41] = "link down status read unknown reason", - [42] = "link down ecd incomplete", - [43] = "link down epd incomplete", - [44] = "sysfs adapter recovery", - [45] = "sysfs port recovery", - [46] = "sysfs unit recovery", - [47] = "port boxed abort", - [48] = "unit boxed abort", - [49] = "port boxed ct", - [50] = "port boxed close physical", - [51] = "port boxed open unit", - [52] = "port boxed close unit", - [53] = "port boxed fcp", - [54] = "unit boxed fcp", - [55] = "port access denied", - [56] = "", - [57] = "", - [58] = "", - [59] = "unit access denied", - [60] = "shared unit access denied open unit", - [61] = "", - [62] = "request timeout", - [63] = "adisc link test reject or timeout", - [64] = "adisc link test d_id changed", - [65] = "adisc link test failed", - [66] = "recovery out of memory", - [67] = "adapter recovery repeated after state change", - [68] = "port recovery repeated after state change", - [69] = "unit recovery repeated after state change", - [70] = "port recovery follow-up after successful adapter recovery", - [71] = "adapter recovery escalation after failed adapter recovery", - [72] = "port recovery follow-up after successful physical port " - "recovery", - [73] = "adapter recovery escalation after failed physical port " - "recovery", - [74] = "unit recovery follow-up after successful port recovery", - [75] = "physical port recovery escalation after failed port " - "recovery", - [76] = "port recovery escalation after failed unit recovery", - [77] = "", - [78] = "duplicate request id", - [79] = "link down", - [80] = "exclusive read-only unit access unsupported", - [81] = "shared read-write unit access unsupported", - [82] = "incoming rscn", - [83] = "incoming wwpn", - [84] = "wka port handle not valid close port", - [85] = "online", - [86] = "offline", - [87] = "ccw device gone", - [88] = "ccw device no path", - [89] = "ccw device operational", - [90] = "ccw device shutdown", - [91] = "sysfs port addition", - [92] = "sysfs port removal", - [93] = "sysfs adapter recovery", - [94] = "sysfs unit addition", - [95] = "sysfs unit removal", - [96] = "sysfs port recovery", - [97] = "sysfs unit recovery", - [98] = "sequence number mismatch", - [99] = "link up", - [100] = "error state", - [101] = "status read physical port closed", - [102] = "link up status read", - [103] = "too many failed status read buffers", - [104] = "port handle not valid abort", - [105] = "lun handle not valid abort", - [106] = "port handle not valid ct", - [107] = "port handle not valid close port", - [108] = "port handle not valid close physical port", - [109] = "port handle not valid open unit", - [110] = "port handle not valid close unit", - [111] = "lun handle not valid close unit", - [112] = "port handle not valid fcp", - [113] = "lun handle not valid fcp", - [114] = "handle mismatch fcp", - [115] = "lun not valid fcp", - [116] = "qdio send failed", - [117] = "version mismatch", - [118] = "incompatible qtcb type", - [119] = "unknown protocol status", - [120] = "unknown fsf command", - [121] = "no recommendation for status qualifier", - [122] = "status read physical port closed in error", - [123] = "fc service class not supported", - [124] = "", - [125] = "need newer zfcp", - [126] = "need newer microcode", - [127] = "arbitrated loop not supported", - [128] = "", - [129] = "qtcb size mismatch", - [130] = "unknown fsf status ecd", - [131] = "fcp request too big", - [132] = "", - [133] = "data direction not valid fcp", - [134] = "command length not valid fcp", - [135] = "status read act update", - [136] = "status read cfdc update", - [137] = "hbaapi port open", - [138] = "hbaapi unit open", - [139] = "hbaapi unit shutdown", - [140] = "qdio error outbound", - [141] = "scsi host reset", - [142] = "dismissing fsf request for recovery action", - [143] = "recovery action timed out", - [144] = "recovery action gone", - [145] = "recovery action being processed", - [146] = "recovery action ready for next step", - [147] = "qdio error inbound", - [148] = "nameserver needed for port scan", - [149] = "port scan", - [150] = "ptp attach", - [151] = "port validation failed", -}; - static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view, char *buf, const char *_rec) { struct zfcp_rec_dbf_record *r = (struct zfcp_rec_dbf_record *)_rec; char *p = buf; + char hint[ZFCP_DBF_ID_SIZE + 1]; + memcpy(hint, r->id2, ZFCP_DBF_ID_SIZE); + hint[ZFCP_DBF_ID_SIZE] = 0; zfcp_dbf_outs(&p, "tag", zfcp_rec_dbf_tags[r->id]); - zfcp_dbf_outs(&p, "hint", zfcp_rec_dbf_ids[r->id2]); - zfcp_dbf_out(&p, "id", "%d", r->id2); + zfcp_dbf_outs(&p, "hint", hint); switch (r->id) { case ZFCP_REC_DBF_ID_THREAD: zfcp_dbf_out(&p, "total", "%d", r->u.thread.total); @@ -707,7 +552,7 @@ static struct debug_view zfcp_rec_dbf_view = { * @adapter: adapter * This function assumes that the caller is holding erp_lock. */ -void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter) +void zfcp_rec_dbf_event_thread(char *id2, struct zfcp_adapter *adapter) { struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf; unsigned long flags = 0; @@ -723,7 +568,7 @@ void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter) spin_lock_irqsave(&adapter->rec_dbf_lock, flags); memset(r, 0, sizeof(*r)); r->id = ZFCP_REC_DBF_ID_THREAD; - r->id2 = id2; + memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE); r->u.thread.total = total; r->u.thread.ready = ready; r->u.thread.running = running; @@ -737,7 +582,7 @@ void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter) * @adapter: adapter * This function assumes that the caller does not hold erp_lock. */ -void zfcp_rec_dbf_event_thread_lock(u8 id2, struct zfcp_adapter *adapter) +void zfcp_rec_dbf_event_thread_lock(char *id2, struct zfcp_adapter *adapter) { unsigned long flags; @@ -746,7 +591,7 @@ void zfcp_rec_dbf_event_thread_lock(u8 id2, struct zfcp_adapter *adapter) read_unlock_irqrestore(&adapter->erp_lock, flags); } -static void zfcp_rec_dbf_event_target(u8 id2, void *ref, +static void zfcp_rec_dbf_event_target(char *id2, void *ref, struct zfcp_adapter *adapter, atomic_t *status, atomic_t *erp_count, u64 wwpn, u32 d_id, u64 fcp_lun) @@ -757,7 +602,7 @@ static void zfcp_rec_dbf_event_target(u8 id2, void *ref, spin_lock_irqsave(&adapter->rec_dbf_lock, flags); memset(r, 0, sizeof(*r)); r->id = ZFCP_REC_DBF_ID_TARGET; - r->id2 = id2; + memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE); r->u.target.ref = (unsigned long)ref; r->u.target.status = atomic_read(status); r->u.target.wwpn = wwpn; @@ -774,7 +619,8 @@ static void zfcp_rec_dbf_event_target(u8 id2, void *ref, * @ref: additional reference (e.g. request) * @adapter: adapter */ -void zfcp_rec_dbf_event_adapter(u8 id, void *ref, struct zfcp_adapter *adapter) +void zfcp_rec_dbf_event_adapter(char *id, void *ref, + struct zfcp_adapter *adapter) { zfcp_rec_dbf_event_target(id, ref, adapter, &adapter->status, &adapter->erp_counter, 0, 0, 0); @@ -786,7 +632,7 @@ void zfcp_rec_dbf_event_adapter(u8 id, void *ref, struct zfcp_adapter *adapter) * @ref: additional reference (e.g. request) * @port: port */ -void zfcp_rec_dbf_event_port(u8 id, void *ref, struct zfcp_port *port) +void zfcp_rec_dbf_event_port(char *id, void *ref, struct zfcp_port *port) { struct zfcp_adapter *adapter = port->adapter; @@ -801,7 +647,7 @@ void zfcp_rec_dbf_event_port(u8 id, void *ref, struct zfcp_port *port) * @ref: additional reference (e.g. request) * @unit: unit */ -void zfcp_rec_dbf_event_unit(u8 id, void *ref, struct zfcp_unit *unit) +void zfcp_rec_dbf_event_unit(char *id, void *ref, struct zfcp_unit *unit) { struct zfcp_port *port = unit->port; struct zfcp_adapter *adapter = port->adapter; @@ -822,7 +668,7 @@ void zfcp_rec_dbf_event_unit(u8 id, void *ref, struct zfcp_unit *unit) * @port: port * @unit: unit */ -void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need, +void zfcp_rec_dbf_event_trigger(char *id2, void *ref, u8 want, u8 need, void *action, struct zfcp_adapter *adapter, struct zfcp_port *port, struct zfcp_unit *unit) { @@ -832,7 +678,7 @@ void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need, spin_lock_irqsave(&adapter->rec_dbf_lock, flags); memset(r, 0, sizeof(*r)); r->id = ZFCP_REC_DBF_ID_TRIGGER; - r->id2 = id2; + memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE); r->u.trigger.ref = (unsigned long)ref; r->u.trigger.want = want; r->u.trigger.need = need; @@ -855,7 +701,7 @@ void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need, * @id2: identifier * @erp_action: error recovery action struct pointer */ -void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action) +void zfcp_rec_dbf_event_action(char *id2, struct zfcp_erp_action *erp_action) { struct zfcp_adapter *adapter = erp_action->adapter; struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf; @@ -864,7 +710,7 @@ void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action) spin_lock_irqsave(&adapter->rec_dbf_lock, flags); memset(r, 0, sizeof(*r)); r->id = ZFCP_REC_DBF_ID_ACTION; - r->id2 = id2; + memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE); r->u.action.action = (unsigned long)erp_action; r->u.action.status = erp_action->status; r->u.action.step = erp_action->step; diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h index 74998ff88e57..a573f7344dd6 100644 --- a/drivers/s390/scsi/zfcp_dbf.h +++ b/drivers/s390/scsi/zfcp_dbf.h @@ -25,6 +25,7 @@ #include "zfcp_fsf.h" #define ZFCP_DBF_TAG_SIZE 4 +#define ZFCP_DBF_ID_SIZE 7 struct zfcp_dbf_dump { u8 tag[ZFCP_DBF_TAG_SIZE]; @@ -70,7 +71,7 @@ struct zfcp_rec_dbf_record_action { struct zfcp_rec_dbf_record { u8 id; - u8 id2; + char id2[7]; union { struct zfcp_rec_dbf_record_action action; struct zfcp_rec_dbf_record_thread thread; diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 510662783a6f..a0318630f047 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -3,7 +3,7 @@ * * Global definitions for the zfcp device driver. * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ #ifndef ZFCP_DEF_H @@ -243,9 +243,6 @@ struct zfcp_ls_adisc { /* remote port status */ #define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001 -#define ZFCP_STATUS_PORT_PHYS_CLOSING 0x00000004 -#define ZFCP_STATUS_PORT_NO_WWPN 0x00000008 -#define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020 /* well known address (WKA) port status*/ enum zfcp_wka_status { @@ -258,7 +255,6 @@ enum zfcp_wka_status { /* logical unit status */ #define ZFCP_STATUS_UNIT_SHARED 0x00000004 #define ZFCP_STATUS_UNIT_READONLY 0x00000008 -#define ZFCP_STATUS_UNIT_REGISTERED 0x00000010 #define ZFCP_STATUS_UNIT_SCSI_WORK_PENDING 0x00000020 /* FSF request status (this does not have a common part) */ @@ -447,8 +443,9 @@ struct zfcp_adapter { spinlock_t req_list_lock; /* request list lock */ struct zfcp_qdio_queue req_q; /* request queue */ spinlock_t req_q_lock; /* for operations on queue */ - int req_q_pci_batch; /* SBALs since PCI indication - was last set */ + ktime_t req_q_time; /* time of last fill level change */ + u64 req_q_util; /* for accounting */ + spinlock_t qdio_stat_lock; u32 fsf_req_seq_no; /* FSF cmnd seq number */ wait_queue_head_t request_wq; /* can be used to wait for more avaliable SBALs */ @@ -514,6 +511,9 @@ struct zfcp_port { u32 maxframe_size; u32 supported_classes; struct work_struct gid_pn_work; + struct work_struct test_link_work; + struct work_struct rport_work; + enum { RPORT_NONE, RPORT_ADD, RPORT_DEL } rport_task; }; struct zfcp_unit { @@ -587,9 +587,6 @@ struct zfcp_fsf_req_qtcb { /********************** ZFCP SPECIFIC DEFINES ********************************/ -#define ZFCP_REQ_AUTO_CLEANUP 0x00000002 -#define ZFCP_REQ_NO_QTCB 0x00000008 - #define ZFCP_SET 0x00000100 #define ZFCP_CLEAR 0x00000200 diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 387a3af528ac..631bdb1dfd6c 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -3,7 +3,7 @@ * * Error Recovery Procedures (ERP). * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ #define KMSG_COMPONENT "zfcp" @@ -55,7 +55,7 @@ enum zfcp_erp_act_result { static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int mask) { - zfcp_erp_modify_adapter_status(adapter, 15, NULL, + zfcp_erp_modify_adapter_status(adapter, "erablk1", NULL, ZFCP_STATUS_COMMON_UNBLOCKED | mask, ZFCP_CLEAR); } @@ -75,9 +75,9 @@ static void zfcp_erp_action_ready(struct zfcp_erp_action *act) struct zfcp_adapter *adapter = act->adapter; list_move(&act->list, &act->adapter->erp_ready_head); - zfcp_rec_dbf_event_action(146, act); + zfcp_rec_dbf_event_action("erardy1", act); up(&adapter->erp_ready_sem); - zfcp_rec_dbf_event_thread(2, adapter); + zfcp_rec_dbf_event_thread("erardy2", adapter); } static void zfcp_erp_action_dismiss(struct zfcp_erp_action *act) @@ -208,7 +208,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter, struct zfcp_port *port, - struct zfcp_unit *unit, u8 id, void *ref) + struct zfcp_unit *unit, char *id, void *ref) { int retval = 1, need; struct zfcp_erp_action *act = NULL; @@ -228,7 +228,7 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter, ++adapter->erp_total_count; list_add_tail(&act->list, &adapter->erp_ready_head); up(&adapter->erp_ready_sem); - zfcp_rec_dbf_event_thread(1, adapter); + zfcp_rec_dbf_event_thread("eracte1", adapter); retval = 0; out: zfcp_rec_dbf_event_trigger(id, ref, want, need, act, @@ -237,13 +237,14 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter, } static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, - int clear_mask, u8 id, void *ref) + int clear_mask, char *id, void *ref) { zfcp_erp_adapter_block(adapter, clear_mask); + zfcp_scsi_schedule_rports_block(adapter); /* ensure propagation of failed status to new devices */ if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) { - zfcp_erp_adapter_failed(adapter, 13, NULL); + zfcp_erp_adapter_failed(adapter, "erareo1", NULL); return -EIO; } return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, @@ -258,7 +259,7 @@ static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, * @ref: Reference for debug trace event. */ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear, - u8 id, void *ref) + char *id, void *ref) { unsigned long flags; @@ -277,7 +278,7 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear, * @ref: Reference for debug trace event. */ void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear, - u8 id, void *ref) + char *id, void *ref) { int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED; zfcp_erp_adapter_reopen(adapter, clear | flags, id, ref); @@ -290,7 +291,8 @@ void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear, * @id: Id for debug trace event. * @ref: Reference for debug trace event. */ -void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, u8 id, void *ref) +void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id, + void *ref) { int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED; zfcp_erp_port_reopen(port, clear | flags, id, ref); @@ -303,7 +305,8 @@ void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, u8 id, void *ref) * @id: Id for debug trace event. * @ref: Reference for debug trace event. */ -void zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear, u8 id, void *ref) +void zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear, char *id, + void *ref) { int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED; zfcp_erp_unit_reopen(unit, clear | flags, id, ref); @@ -311,15 +314,16 @@ void zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear, u8 id, void *ref) static void zfcp_erp_port_block(struct zfcp_port *port, int clear) { - zfcp_erp_modify_port_status(port, 17, NULL, + zfcp_erp_modify_port_status(port, "erpblk1", NULL, ZFCP_STATUS_COMMON_UNBLOCKED | clear, ZFCP_CLEAR); } static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port, - int clear, u8 id, void *ref) + int clear, char *id, void *ref) { zfcp_erp_port_block(port, clear); + zfcp_scsi_schedule_rport_block(port); if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) return; @@ -334,7 +338,7 @@ static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port, * @id: Id for debug trace event. * @ref: Reference for debug trace event. */ -void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, u8 id, +void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id, void *ref) { unsigned long flags; @@ -347,14 +351,15 @@ void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, u8 id, read_unlock_irqrestore(&zfcp_data.config_lock, flags); } -static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id, +static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id, void *ref) { zfcp_erp_port_block(port, clear); + zfcp_scsi_schedule_rport_block(port); if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) { /* ensure propagation of failed status to new devices */ - zfcp_erp_port_failed(port, 14, NULL); + zfcp_erp_port_failed(port, "erpreo1", NULL); return -EIO; } @@ -369,7 +374,7 @@ static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id, * * Returns 0 if recovery has been triggered, < 0 if not. */ -int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id, void *ref) +int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id, void *ref) { unsigned long flags; int retval; @@ -386,12 +391,12 @@ int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id, void *ref) static void zfcp_erp_unit_block(struct zfcp_unit *unit, int clear_mask) { - zfcp_erp_modify_unit_status(unit, 19, NULL, + zfcp_erp_modify_unit_status(unit, "erublk1", NULL, ZFCP_STATUS_COMMON_UNBLOCKED | clear_mask, ZFCP_CLEAR); } -static void _zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id, +static void _zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, char *id, void *ref) { struct zfcp_adapter *adapter = unit->port->adapter; @@ -411,7 +416,8 @@ static void _zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id, * @clear_mask: specifies flags in unit status to be cleared * Return: 0 on success, < 0 on error */ -void zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id, void *ref) +void zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, char *id, + void *ref) { unsigned long flags; struct zfcp_port *port = unit->port; @@ -437,28 +443,28 @@ static int status_change_clear(unsigned long mask, atomic_t *status) static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter) { if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status)) - zfcp_rec_dbf_event_adapter(16, NULL, adapter); + zfcp_rec_dbf_event_adapter("eraubl1", NULL, adapter); atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status); } static void zfcp_erp_port_unblock(struct zfcp_port *port) { if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status)) - zfcp_rec_dbf_event_port(18, NULL, port); + zfcp_rec_dbf_event_port("erpubl1", NULL, port); atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status); } static void zfcp_erp_unit_unblock(struct zfcp_unit *unit) { if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status)) - zfcp_rec_dbf_event_unit(20, NULL, unit); + zfcp_rec_dbf_event_unit("eruubl1", NULL, unit); atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status); } static void zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action) { list_move(&erp_action->list, &erp_action->adapter->erp_running_head); - zfcp_rec_dbf_event_action(145, erp_action); + zfcp_rec_dbf_event_action("erator1", erp_action); } static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act) @@ -474,11 +480,11 @@ static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act) if (act->status & (ZFCP_STATUS_ERP_DISMISSED | ZFCP_STATUS_ERP_TIMEDOUT)) { act->fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; - zfcp_rec_dbf_event_action(142, act); + zfcp_rec_dbf_event_action("erscf_1", act); act->fsf_req->erp_action = NULL; } if (act->status & ZFCP_STATUS_ERP_TIMEDOUT) - zfcp_rec_dbf_event_action(143, act); + zfcp_rec_dbf_event_action("erscf_2", act); if (act->fsf_req->status & (ZFCP_STATUS_FSFREQ_COMPLETED | ZFCP_STATUS_FSFREQ_DISMISSED)) act->fsf_req = NULL; @@ -530,7 +536,7 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action) } static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, - int clear, u8 id, void *ref) + int clear, char *id, void *ref) { struct zfcp_port *port; @@ -538,8 +544,8 @@ static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, _zfcp_erp_port_reopen(port, clear, id, ref); } -static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, u8 id, - void *ref) +static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, + char *id, void *ref) { struct zfcp_unit *unit; @@ -559,28 +565,28 @@ static void zfcp_erp_strategy_followup_actions(struct zfcp_erp_action *act) case ZFCP_ERP_ACTION_REOPEN_ADAPTER: if (status == ZFCP_ERP_SUCCEEDED) - _zfcp_erp_port_reopen_all(adapter, 0, 70, NULL); + _zfcp_erp_port_reopen_all(adapter, 0, "ersfa_1", NULL); else - _zfcp_erp_adapter_reopen(adapter, 0, 71, NULL); + _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_2", NULL); break; case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: if (status == ZFCP_ERP_SUCCEEDED) - _zfcp_erp_port_reopen(port, 0, 72, NULL); + _zfcp_erp_port_reopen(port, 0, "ersfa_3", NULL); else - _zfcp_erp_adapter_reopen(adapter, 0, 73, NULL); + _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_4", NULL); break; case ZFCP_ERP_ACTION_REOPEN_PORT: if (status == ZFCP_ERP_SUCCEEDED) - _zfcp_erp_unit_reopen_all(port, 0, 74, NULL); + _zfcp_erp_unit_reopen_all(port, 0, "ersfa_5", NULL); else - _zfcp_erp_port_forced_reopen(port, 0, 75, NULL); + _zfcp_erp_port_forced_reopen(port, 0, "ersfa_6", NULL); break; case ZFCP_ERP_ACTION_REOPEN_UNIT: if (status != ZFCP_ERP_SUCCEEDED) - _zfcp_erp_port_reopen(unit->port, 0, 76, NULL); + _zfcp_erp_port_reopen(unit->port, 0, "ersfa_7", NULL); break; } } @@ -617,7 +623,7 @@ static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter) adapter->peer_d_id); if (IS_ERR(port)) /* error or port already attached */ return; - _zfcp_erp_port_reopen(port, 0, 150, NULL); + _zfcp_erp_port_reopen(port, 0, "ereptp1", NULL); } static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action) @@ -640,9 +646,9 @@ static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action) return ZFCP_ERP_FAILED; } - zfcp_rec_dbf_event_thread_lock(6, adapter); + zfcp_rec_dbf_event_thread_lock("erasfx1", adapter); down(&adapter->erp_ready_sem); - zfcp_rec_dbf_event_thread_lock(7, adapter); + zfcp_rec_dbf_event_thread_lock("erasfx2", adapter); if (erp_action->status & ZFCP_STATUS_ERP_TIMEDOUT) break; @@ -681,9 +687,9 @@ static int zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *act) if (ret) return ZFCP_ERP_FAILED; - zfcp_rec_dbf_event_thread_lock(8, adapter); + zfcp_rec_dbf_event_thread_lock("erasox1", adapter); down(&adapter->erp_ready_sem); - zfcp_rec_dbf_event_thread_lock(9, adapter); + zfcp_rec_dbf_event_thread_lock("erasox2", adapter); if (act->status & ZFCP_STATUS_ERP_TIMEDOUT) return ZFCP_ERP_FAILED; @@ -705,60 +711,59 @@ static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *act) return ZFCP_ERP_SUCCEEDED; } -static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *act, - int close) +static void zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *act) { - int retval = ZFCP_ERP_SUCCEEDED; struct zfcp_adapter *adapter = act->adapter; - if (close) - goto close_only; - - retval = zfcp_erp_adapter_strategy_open_qdio(act); - if (retval != ZFCP_ERP_SUCCEEDED) - goto failed_qdio; - - retval = zfcp_erp_adapter_strategy_open_fsf(act); - if (retval != ZFCP_ERP_SUCCEEDED) - goto failed_openfcp; - - atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &act->adapter->status); - - return ZFCP_ERP_SUCCEEDED; - - close_only: - atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, - &act->adapter->status); - - failed_openfcp: /* close queues to ensure that buffers are not accessed by adapter */ zfcp_qdio_close(adapter); zfcp_fsf_req_dismiss_all(adapter); adapter->fsf_req_seq_no = 0; /* all ports and units are closed */ - zfcp_erp_modify_adapter_status(adapter, 24, NULL, + zfcp_erp_modify_adapter_status(adapter, "erascl1", NULL, ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR); - failed_qdio: + atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK | - ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, - &act->adapter->status); - return retval; + ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); } -static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *act) +static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *act) { - int retval; + struct zfcp_adapter *adapter = act->adapter; - zfcp_erp_adapter_strategy_generic(act, 1); /* close */ - if (act->status & ZFCP_STATUS_ERP_CLOSE_ONLY) - return ZFCP_ERP_EXIT; + if (zfcp_erp_adapter_strategy_open_qdio(act)) { + atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK | + ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, + &adapter->status); + return ZFCP_ERP_FAILED; + } + + if (zfcp_erp_adapter_strategy_open_fsf(act)) { + zfcp_erp_adapter_strategy_close(act); + return ZFCP_ERP_FAILED; + } + + atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &adapter->status); + + return ZFCP_ERP_SUCCEEDED; +} - retval = zfcp_erp_adapter_strategy_generic(act, 0); /* open */ +static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *act) +{ + struct zfcp_adapter *adapter = act->adapter; - if (retval == ZFCP_ERP_FAILED) + if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN) { + zfcp_erp_adapter_strategy_close(act); + if (act->status & ZFCP_STATUS_ERP_CLOSE_ONLY) + return ZFCP_ERP_EXIT; + } + + if (zfcp_erp_adapter_strategy_open(act)) { ssleep(8); + return ZFCP_ERP_FAILED; + } - return retval; + return ZFCP_ERP_SUCCEEDED; } static int zfcp_erp_port_forced_strategy_close(struct zfcp_erp_action *act) @@ -777,10 +782,7 @@ static int zfcp_erp_port_forced_strategy_close(struct zfcp_erp_action *act) static void zfcp_erp_port_strategy_clearstati(struct zfcp_port *port) { - atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | - ZFCP_STATUS_PORT_PHYS_CLOSING | - ZFCP_STATUS_PORT_INVALID_WWPN, - &port->status); + atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED, &port->status); } static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action) @@ -836,7 +838,7 @@ static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act) struct zfcp_port *port = act->port; if (port->wwpn != adapter->peer_wwpn) { - zfcp_erp_port_failed(port, 25, NULL); + zfcp_erp_port_failed(port, "eroptp1", NULL); return ZFCP_ERP_FAILED; } port->d_id = adapter->peer_d_id; @@ -855,7 +857,7 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work) port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP; if (retval) zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED); - + zfcp_port_put(port); } static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act) @@ -871,17 +873,15 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act) if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP) return zfcp_erp_open_ptp_port(act); if (!port->d_id) { - queue_work(zfcp_data.work_queue, &port->gid_pn_work); + zfcp_port_get(port); + if (!queue_work(zfcp_data.work_queue, + &port->gid_pn_work)) + zfcp_port_put(port); return ZFCP_ERP_CONTINUES; } case ZFCP_ERP_STEP_NAMESERVER_LOOKUP: - if (!port->d_id) { - if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) { - zfcp_erp_port_failed(port, 26, NULL); - return ZFCP_ERP_EXIT; - } + if (!port->d_id) return ZFCP_ERP_FAILED; - } return zfcp_erp_port_strategy_open_port(act); case ZFCP_ERP_STEP_PORT_OPENING: @@ -995,7 +995,7 @@ static int zfcp_erp_strategy_check_unit(struct zfcp_unit *unit, int result) "port 0x%016Lx\n", (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_unit_failed(unit, 21, NULL); + zfcp_erp_unit_failed(unit, "erusck1", NULL); } break; } @@ -1025,7 +1025,7 @@ static int zfcp_erp_strategy_check_port(struct zfcp_port *port, int result) dev_err(&port->adapter->ccw_device->dev, "ERP failed for remote port 0x%016Lx\n", (unsigned long long)port->wwpn); - zfcp_erp_port_failed(port, 22, NULL); + zfcp_erp_port_failed(port, "erpsck1", NULL); } break; } @@ -1052,7 +1052,7 @@ static int zfcp_erp_strategy_check_adapter(struct zfcp_adapter *adapter, dev_err(&adapter->ccw_device->dev, "ERP cannot recover an error " "on the FCP device\n"); - zfcp_erp_adapter_failed(adapter, 23, NULL); + zfcp_erp_adapter_failed(adapter, "erasck1", NULL); } break; } @@ -1117,7 +1117,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret) if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) { _zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, - 67, NULL); + "ersscg1", NULL); return ZFCP_ERP_EXIT; } break; @@ -1127,7 +1127,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret) if (zfcp_erp_strat_change_det(&port->status, erp_status)) { _zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, - 68, NULL); + "ersscg2", NULL); return ZFCP_ERP_EXIT; } break; @@ -1136,7 +1136,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret) if (zfcp_erp_strat_change_det(&unit->status, erp_status)) { _zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED, - 69, NULL); + "ersscg3", NULL); return ZFCP_ERP_EXIT; } break; @@ -1155,7 +1155,7 @@ static void zfcp_erp_action_dequeue(struct zfcp_erp_action *erp_action) } list_del(&erp_action->list); - zfcp_rec_dbf_event_action(144, erp_action); + zfcp_rec_dbf_event_action("eractd1", erp_action); switch (erp_action->action) { case ZFCP_ERP_ACTION_REOPEN_UNIT: @@ -1214,38 +1214,8 @@ static void zfcp_erp_schedule_work(struct zfcp_unit *unit) atomic_set_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status); INIT_WORK(&p->work, zfcp_erp_scsi_scan); p->unit = unit; - queue_work(zfcp_data.work_queue, &p->work); -} - -static void zfcp_erp_rport_register(struct zfcp_port *port) -{ - struct fc_rport_identifiers ids; - ids.node_name = port->wwnn; - ids.port_name = port->wwpn; - ids.port_id = port->d_id; - ids.roles = FC_RPORT_ROLE_FCP_TARGET; - port->rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids); - if (!port->rport) { - dev_err(&port->adapter->ccw_device->dev, - "Registering port 0x%016Lx failed\n", - (unsigned long long)port->wwpn); - return; - } - - scsi_target_unblock(&port->rport->dev); - port->rport->maxframe_size = port->maxframe_size; - port->rport->supported_classes = port->supported_classes; -} - -static void zfcp_erp_rports_del(struct zfcp_adapter *adapter) -{ - struct zfcp_port *port; - list_for_each_entry(port, &adapter->port_list_head, list) { - if (!port->rport) - continue; - fc_remote_port_delete(port->rport); - port->rport = NULL; - } + if (!queue_work(zfcp_data.work_queue, &p->work)) + zfcp_unit_put(unit); } static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result) @@ -1256,10 +1226,8 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result) switch (act->action) { case ZFCP_ERP_ACTION_REOPEN_UNIT: - if ((result == ZFCP_ERP_SUCCEEDED) && - !unit->device && port->rport) { - atomic_set_mask(ZFCP_STATUS_UNIT_REGISTERED, - &unit->status); + flush_work(&port->rport_work); + if ((result == ZFCP_ERP_SUCCEEDED) && !unit->device) { if (!(atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SCSI_WORK_PENDING)) zfcp_erp_schedule_work(unit); @@ -1269,27 +1237,17 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result) case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: case ZFCP_ERP_ACTION_REOPEN_PORT: - if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN) { - zfcp_port_put(port); - return; - } - if ((result == ZFCP_ERP_SUCCEEDED) && !port->rport) - zfcp_erp_rport_register(port); - if ((result != ZFCP_ERP_SUCCEEDED) && port->rport) { - fc_remote_port_delete(port->rport); - port->rport = NULL; - } + if (result == ZFCP_ERP_SUCCEEDED) + zfcp_scsi_schedule_rport_register(port); zfcp_port_put(port); break; case ZFCP_ERP_ACTION_REOPEN_ADAPTER: - if (result != ZFCP_ERP_SUCCEEDED) { - unregister_service_level(&adapter->service_level); - zfcp_erp_rports_del(adapter); - } else { + if (result == ZFCP_ERP_SUCCEEDED) { register_service_level(&adapter->service_level); schedule_work(&adapter->scan_work); - } + } else + unregister_service_level(&adapter->service_level); zfcp_adapter_put(adapter); break; } @@ -1346,7 +1304,7 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action) erp_action->status |= ZFCP_STATUS_ERP_LOWMEM; } if (adapter->erp_total_count == adapter->erp_low_mem_count) - _zfcp_erp_adapter_reopen(adapter, 0, 66, NULL); + _zfcp_erp_adapter_reopen(adapter, 0, "erstgy1", NULL); else { zfcp_erp_strategy_memwait(erp_action); retval = ZFCP_ERP_CONTINUES; @@ -1406,9 +1364,9 @@ static int zfcp_erp_thread(void *data) zfcp_erp_wakeup(adapter); } - zfcp_rec_dbf_event_thread_lock(4, adapter); + zfcp_rec_dbf_event_thread_lock("erthrd1", adapter); ignore = down_interruptible(&adapter->erp_ready_sem); - zfcp_rec_dbf_event_thread_lock(5, adapter); + zfcp_rec_dbf_event_thread_lock("erthrd2", adapter); } atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status); @@ -1453,7 +1411,7 @@ void zfcp_erp_thread_kill(struct zfcp_adapter *adapter) { atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL, &adapter->status); up(&adapter->erp_ready_sem); - zfcp_rec_dbf_event_thread_lock(3, adapter); + zfcp_rec_dbf_event_thread_lock("erthrk1", adapter); wait_event(adapter->erp_thread_wqh, !(atomic_read(&adapter->status) & @@ -1469,7 +1427,7 @@ void zfcp_erp_thread_kill(struct zfcp_adapter *adapter) * @id: Event id for debug trace. * @ref: Reference for debug trace. */ -void zfcp_erp_adapter_failed(struct zfcp_adapter *adapter, u8 id, void *ref) +void zfcp_erp_adapter_failed(struct zfcp_adapter *adapter, char *id, void *ref) { zfcp_erp_modify_adapter_status(adapter, id, ref, ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET); @@ -1481,7 +1439,7 @@ void zfcp_erp_adapter_failed(struct zfcp_adapter *adapter, u8 id, void *ref) * @id: Event id for debug trace. * @ref: Reference for debug trace. */ -void zfcp_erp_port_failed(struct zfcp_port *port, u8 id, void *ref) +void zfcp_erp_port_failed(struct zfcp_port *port, char *id, void *ref) { zfcp_erp_modify_port_status(port, id, ref, ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET); @@ -1493,7 +1451,7 @@ void zfcp_erp_port_failed(struct zfcp_port *port, u8 id, void *ref) * @id: Event id for debug trace. * @ref: Reference for debug trace. */ -void zfcp_erp_unit_failed(struct zfcp_unit *unit, u8 id, void *ref) +void zfcp_erp_unit_failed(struct zfcp_unit *unit, char *id, void *ref) { zfcp_erp_modify_unit_status(unit, id, ref, ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET); @@ -1520,7 +1478,7 @@ void zfcp_erp_wait(struct zfcp_adapter *adapter) * * Changes in common status bits are propagated to attached ports and units. */ -void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, u8 id, +void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, char *id, void *ref, u32 mask, int set_or_clear) { struct zfcp_port *port; @@ -1554,7 +1512,7 @@ void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, u8 id, * * Changes in common status bits are propagated to attached units. */ -void zfcp_erp_modify_port_status(struct zfcp_port *port, u8 id, void *ref, +void zfcp_erp_modify_port_status(struct zfcp_port *port, char *id, void *ref, u32 mask, int set_or_clear) { struct zfcp_unit *unit; @@ -1586,7 +1544,7 @@ void zfcp_erp_modify_port_status(struct zfcp_port *port, u8 id, void *ref, * @mask: status bits to change * @set_or_clear: ZFCP_SET or ZFCP_CLEAR */ -void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u8 id, void *ref, +void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, char *id, void *ref, u32 mask, int set_or_clear) { if (set_or_clear == ZFCP_SET) { @@ -1609,7 +1567,7 @@ void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u8 id, void *ref, * @id: The debug trace id. * @id: Reference for the debug trace. */ -void zfcp_erp_port_boxed(struct zfcp_port *port, u8 id, void *ref) +void zfcp_erp_port_boxed(struct zfcp_port *port, char *id, void *ref) { unsigned long flags; @@ -1626,7 +1584,7 @@ void zfcp_erp_port_boxed(struct zfcp_port *port, u8 id, void *ref) * @id: The debug trace id. * @id: Reference for the debug trace. */ -void zfcp_erp_unit_boxed(struct zfcp_unit *unit, u8 id, void *ref) +void zfcp_erp_unit_boxed(struct zfcp_unit *unit, char *id, void *ref) { zfcp_erp_modify_unit_status(unit, id, ref, ZFCP_STATUS_COMMON_ACCESS_BOXED, ZFCP_SET); @@ -1642,7 +1600,7 @@ void zfcp_erp_unit_boxed(struct zfcp_unit *unit, u8 id, void *ref) * Since the adapter has denied access, stop using the port and the * attached units. */ -void zfcp_erp_port_access_denied(struct zfcp_port *port, u8 id, void *ref) +void zfcp_erp_port_access_denied(struct zfcp_port *port, char *id, void *ref) { unsigned long flags; @@ -1661,14 +1619,14 @@ void zfcp_erp_port_access_denied(struct zfcp_port *port, u8 id, void *ref) * * Since the adapter has denied access, stop using the unit. */ -void zfcp_erp_unit_access_denied(struct zfcp_unit *unit, u8 id, void *ref) +void zfcp_erp_unit_access_denied(struct zfcp_unit *unit, char *id, void *ref) { zfcp_erp_modify_unit_status(unit, id, ref, ZFCP_STATUS_COMMON_ERP_FAILED | ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET); } -static void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, u8 id, +static void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, char *id, void *ref) { int status = atomic_read(&unit->status); @@ -1679,7 +1637,7 @@ static void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, u8 id, zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref); } -static void zfcp_erp_port_access_changed(struct zfcp_port *port, u8 id, +static void zfcp_erp_port_access_changed(struct zfcp_port *port, char *id, void *ref) { struct zfcp_unit *unit; @@ -1701,7 +1659,7 @@ static void zfcp_erp_port_access_changed(struct zfcp_port *port, u8 id, * @id: Id for debug trace * @ref: Reference for debug trace */ -void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, u8 id, +void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, char *id, void *ref) { struct zfcp_port *port; diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index b5adeda93e1d..f6399ca97bcb 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -3,7 +3,7 @@ * * External function declarations. * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ #ifndef ZFCP_EXT_H @@ -35,15 +35,15 @@ extern struct miscdevice zfcp_cfdc_misc; /* zfcp_dbf.c */ extern int zfcp_adapter_debug_register(struct zfcp_adapter *); extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *); -extern void zfcp_rec_dbf_event_thread(u8, struct zfcp_adapter *); -extern void zfcp_rec_dbf_event_thread_lock(u8, struct zfcp_adapter *); -extern void zfcp_rec_dbf_event_adapter(u8, void *, struct zfcp_adapter *); -extern void zfcp_rec_dbf_event_port(u8, void *, struct zfcp_port *); -extern void zfcp_rec_dbf_event_unit(u8, void *, struct zfcp_unit *); -extern void zfcp_rec_dbf_event_trigger(u8, void *, u8, u8, void *, +extern void zfcp_rec_dbf_event_thread(char *, struct zfcp_adapter *); +extern void zfcp_rec_dbf_event_thread_lock(char *, struct zfcp_adapter *); +extern void zfcp_rec_dbf_event_adapter(char *, void *, struct zfcp_adapter *); +extern void zfcp_rec_dbf_event_port(char *, void *, struct zfcp_port *); +extern void zfcp_rec_dbf_event_unit(char *, void *, struct zfcp_unit *); +extern void zfcp_rec_dbf_event_trigger(char *, void *, u8, u8, void *, struct zfcp_adapter *, struct zfcp_port *, struct zfcp_unit *); -extern void zfcp_rec_dbf_event_action(u8, struct zfcp_erp_action *); +extern void zfcp_rec_dbf_event_action(char *, struct zfcp_erp_action *); extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *); extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *, struct fsf_status_read_buffer *); @@ -66,31 +66,34 @@ extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *, struct scsi_cmnd *); /* zfcp_erp.c */ -extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u8, void *, - u32, int); -extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, u8, void *); -extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, u8, void *); -extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, u8, void *); -extern void zfcp_erp_modify_port_status(struct zfcp_port *, u8, void *, u32, +extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, char *, + void *, u32, int); +extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *, void *); +extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *, + void *); +extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, char *, void *); +extern void zfcp_erp_modify_port_status(struct zfcp_port *, char *, void *, u32, int); -extern int zfcp_erp_port_reopen(struct zfcp_port *, int, u8, void *); -extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, u8, void *); -extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, u8, void *); -extern void zfcp_erp_port_failed(struct zfcp_port *, u8, void *); -extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u8, void *, u32, +extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *, void *); +extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *, void *); +extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *, + void *); +extern void zfcp_erp_port_failed(struct zfcp_port *, char *, void *); +extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, char *, void *, u32, int); -extern void zfcp_erp_unit_reopen(struct zfcp_unit *, int, u8, void *); -extern void zfcp_erp_unit_shutdown(struct zfcp_unit *, int, u8, void *); -extern void zfcp_erp_unit_failed(struct zfcp_unit *, u8, void *); +extern void zfcp_erp_unit_reopen(struct zfcp_unit *, int, char *, void *); +extern void zfcp_erp_unit_shutdown(struct zfcp_unit *, int, char *, void *); +extern void zfcp_erp_unit_failed(struct zfcp_unit *, char *, void *); extern int zfcp_erp_thread_setup(struct zfcp_adapter *); extern void zfcp_erp_thread_kill(struct zfcp_adapter *); extern void zfcp_erp_wait(struct zfcp_adapter *); extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long); -extern void zfcp_erp_port_boxed(struct zfcp_port *, u8, void *); -extern void zfcp_erp_unit_boxed(struct zfcp_unit *, u8, void *); -extern void zfcp_erp_port_access_denied(struct zfcp_port *, u8, void *); -extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8, void *); -extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, u8, void *); +extern void zfcp_erp_port_boxed(struct zfcp_port *, char *, void *); +extern void zfcp_erp_unit_boxed(struct zfcp_unit *, char *, void *); +extern void zfcp_erp_port_access_denied(struct zfcp_port *, char *, void *); +extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, char *, void *); +extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, char *, + void *); extern void zfcp_erp_timeout_handler(unsigned long); extern void zfcp_erp_port_strategy_open_lookup(struct work_struct *); @@ -101,6 +104,7 @@ extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *); extern int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *); extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *); extern void zfcp_test_link(struct zfcp_port *); +extern void zfcp_fc_link_test_work(struct work_struct *); extern void zfcp_fc_nameserver_init(struct zfcp_adapter *); /* zfcp_fsf.c */ @@ -125,16 +129,13 @@ extern int zfcp_status_read_refill(struct zfcp_adapter *adapter); extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *, struct zfcp_erp_action *); extern int zfcp_fsf_send_els(struct zfcp_send_els *); -extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *, - struct zfcp_unit *, - struct scsi_cmnd *, int, int); +extern int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *, + struct scsi_cmnd *); extern void zfcp_fsf_req_complete(struct zfcp_fsf_req *); extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); -extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *, - struct zfcp_unit *, u8, int); +extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *, u8); extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long, - struct zfcp_adapter *, - struct zfcp_unit *, int); + struct zfcp_unit *); /* zfcp_qdio.c */ extern int zfcp_qdio_allocate(struct zfcp_adapter *); @@ -153,6 +154,10 @@ extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *); extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *); extern struct fc_function_template zfcp_transport_functions; +extern void zfcp_scsi_rport_work(struct work_struct *); +extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *); +extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *); +extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *); /* zfcp_sysfs.c */ extern struct attribute_group zfcp_sysfs_unit_attrs; diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index eabdfe24456e..e8d032b9dfbd 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -3,7 +3,7 @@ * * Fibre Channel related functions for the zfcp device driver. * - * Copyright IBM Corporation 2008 + * Copyright IBM Corporation 2008, 2009 */ #define KMSG_COMPONENT "zfcp" @@ -94,12 +94,16 @@ static int zfcp_wka_port_get(struct zfcp_wka_port *wka_port) static void zfcp_wka_port_offline(struct work_struct *work) { - struct delayed_work *dw = container_of(work, struct delayed_work, work); + struct delayed_work *dw = to_delayed_work(work); struct zfcp_wka_port *wka_port = container_of(dw, struct zfcp_wka_port, work); - wait_event(wka_port->completion_wq, - atomic_read(&wka_port->refcount) == 0); + /* Don't wait forvever. If the wka_port is too busy take it offline + through a new call later */ + if (!wait_event_timeout(wka_port->completion_wq, + atomic_read(&wka_port->refcount) == 0, + HZ >> 1)) + return; mutex_lock(&wka_port->mutex); if ((atomic_read(&wka_port->refcount) != 0) || @@ -145,16 +149,10 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range, struct zfcp_port *port; read_lock_irqsave(&zfcp_data.config_lock, flags); - list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) { - if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_PHYS_OPEN)) - /* Try to connect to unused ports anyway. */ - zfcp_erp_port_reopen(port, - ZFCP_STATUS_COMMON_ERP_FAILED, - 82, fsf_req); - else if ((port->d_id & range) == (elem->nport_did & range)) - /* Check connection status for connected ports */ + list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) + if ((port->d_id & range) == (elem->nport_did & range)) zfcp_test_link(port); - } + read_unlock_irqrestore(&zfcp_data.config_lock, flags); } @@ -196,7 +194,7 @@ static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn) read_unlock_irqrestore(&zfcp_data.config_lock, flags); if (port && (port->wwpn == wwpn)) - zfcp_erp_port_forced_reopen(port, 0, 83, req); + zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req); } static void zfcp_fc_incoming_plogi(struct zfcp_fsf_req *req) @@ -259,10 +257,9 @@ static void zfcp_fc_ns_gid_pn_eval(unsigned long data) if (ct->status) return; - if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT) { - atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status); + if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT) return; - } + /* paranoia */ if (ct_iu_req->wwpn != port->wwpn) return; @@ -375,16 +372,22 @@ static void zfcp_fc_adisc_handler(unsigned long data) if (adisc->els.status) { /* request rejected or timed out */ - zfcp_erp_port_forced_reopen(port, 0, 63, NULL); + zfcp_erp_port_forced_reopen(port, 0, "fcadh_1", NULL); goto out; } if (!port->wwnn) port->wwnn = ls_adisc->wwnn; - if (port->wwpn != ls_adisc->wwpn) - zfcp_erp_port_reopen(port, 0, 64, NULL); + if ((port->wwpn != ls_adisc->wwpn) || + !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) { + zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, + "fcadh_2", NULL); + goto out; + } + /* port is good, unblock rport without going through erp */ + zfcp_scsi_schedule_rport_register(port); out: zfcp_port_put(port); kfree(adisc); @@ -422,6 +425,31 @@ static int zfcp_fc_adisc(struct zfcp_port *port) return zfcp_fsf_send_els(&adisc->els); } +void zfcp_fc_link_test_work(struct work_struct *work) +{ + struct zfcp_port *port = + container_of(work, struct zfcp_port, test_link_work); + int retval; + + if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_UNBLOCKED)) { + zfcp_port_put(port); + return; /* port erp is running and will update rport status */ + } + + zfcp_port_get(port); + port->rport_task = RPORT_DEL; + zfcp_scsi_rport_work(&port->rport_work); + + retval = zfcp_fc_adisc(port); + if (retval == 0) + return; + + /* send of ADISC was not possible */ + zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL); + + zfcp_port_put(port); +} + /** * zfcp_test_link - lightweight link test procedure * @port: port to be tested @@ -432,17 +460,9 @@ static int zfcp_fc_adisc(struct zfcp_port *port) */ void zfcp_test_link(struct zfcp_port *port) { - int retval; - zfcp_port_get(port); - retval = zfcp_fc_adisc(port); - if (retval == 0) - return; - - /* send of ADISC was not possible */ - zfcp_port_put(port); - if (retval != -EBUSY) - zfcp_erp_port_forced_reopen(port, 0, 65, NULL); + if (!queue_work(zfcp_data.work_queue, &port->test_link_work)) + zfcp_port_put(port); } static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft, int buf_num) @@ -529,7 +549,7 @@ static void zfcp_validate_port(struct zfcp_port *port) zfcp_port_put(port); return; } - zfcp_erp_port_shutdown(port, 0, 151, NULL); + zfcp_erp_port_shutdown(port, 0, "fcpval1", NULL); zfcp_erp_wait(adapter); zfcp_port_put(port); zfcp_port_dequeue(port); @@ -592,7 +612,7 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft, int max_entries) if (IS_ERR(port)) ret = PTR_ERR(port); else - zfcp_erp_port_reopen(port, 0, 149, NULL); + zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL); } zfcp_erp_wait(adapter); diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index e6416f8541b0..b29f3121b666 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -3,7 +3,7 @@ * * Implementation of FSF commands. * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ #define KMSG_COMPONENT "zfcp" @@ -12,11 +12,14 @@ #include <linux/blktrace_api.h> #include "zfcp_ext.h" +#define ZFCP_REQ_AUTO_CLEANUP 0x00000002 +#define ZFCP_REQ_NO_QTCB 0x00000008 + static void zfcp_fsf_request_timeout_handler(unsigned long data) { struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; - zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 62, - NULL); + zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, + "fsrth_1", NULL); } static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, @@ -75,7 +78,7 @@ static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, (unsigned long long)port->wwpn); zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); - zfcp_erp_port_access_denied(port, 55, req); + zfcp_erp_port_access_denied(port, "fspad_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; } @@ -89,7 +92,7 @@ static void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, (unsigned long long)unit->port->wwpn); zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); - zfcp_erp_unit_access_denied(unit, 59, req); + zfcp_erp_unit_access_denied(unit, "fsuad_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; } @@ -97,7 +100,7 @@ static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) { dev_err(&req->adapter->ccw_device->dev, "FCP device not " "operational because of an unsupported FC class\n"); - zfcp_erp_adapter_shutdown(req->adapter, 0, 123, req); + zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; } @@ -159,20 +162,13 @@ static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) list_for_each_entry(port, &adapter->port_list_head, list) if (port->d_id == d_id) { read_unlock_irqrestore(&zfcp_data.config_lock, flags); - switch (sr_buf->status_subtype) { - case FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT: - zfcp_erp_port_reopen(port, 0, 101, req); - break; - case FSF_STATUS_READ_SUB_ERROR_PORT: - zfcp_erp_port_shutdown(port, 0, 122, req); - break; - } + zfcp_erp_port_reopen(port, 0, "fssrpc1", req); return; } read_unlock_irqrestore(&zfcp_data.config_lock, flags); } -static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id, +static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, struct fsf_link_down_info *link_down) { struct zfcp_adapter *adapter = req->adapter; @@ -181,6 +177,7 @@ static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id, return; atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); + zfcp_scsi_schedule_rports_block(adapter); if (!link_down) goto out; @@ -261,13 +258,13 @@ static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) switch (sr_buf->status_subtype) { case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: - zfcp_fsf_link_down_info_eval(req, 38, ldi); + zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); break; case FSF_STATUS_READ_SUB_FDISC_FAILED: - zfcp_fsf_link_down_info_eval(req, 39, ldi); + zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); break; case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: - zfcp_fsf_link_down_info_eval(req, 40, NULL); + zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); }; } @@ -307,22 +304,23 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) dev_info(&adapter->ccw_device->dev, "The local link has been restored\n"); /* All ports should be marked as ready to run again */ - zfcp_erp_modify_adapter_status(adapter, 30, NULL, + zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | ZFCP_STATUS_COMMON_ERP_FAILED, - 102, req); + "fssrh_2", req); break; case FSF_STATUS_READ_NOTIFICATION_LOST: if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) - zfcp_erp_adapter_access_changed(adapter, 135, req); + zfcp_erp_adapter_access_changed(adapter, "fssrh_3", + req); if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) schedule_work(&adapter->scan_work); break; case FSF_STATUS_READ_CFDC_UPDATED: - zfcp_erp_adapter_access_changed(adapter, 136, req); + zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); break; case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: adapter->adapter_features = sr_buf->payload.word[0]; @@ -351,7 +349,7 @@ static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) dev_err(&req->adapter->ccw_device->dev, "The FCP adapter reported a problem " "that cannot be recovered\n"); - zfcp_erp_adapter_shutdown(req->adapter, 0, 121, req); + zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); break; } /* all non-return stats set FSFREQ_ERROR*/ @@ -368,7 +366,7 @@ static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) dev_err(&req->adapter->ccw_device->dev, "The FCP adapter does not recognize the command 0x%x\n", req->qtcb->header.fsf_command); - zfcp_erp_adapter_shutdown(req->adapter, 0, 120, req); + zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_ADAPTER_STATUS_AVAILABLE: @@ -400,17 +398,17 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) "QTCB version 0x%x not supported by FCP adapter " "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, psq->word[0], psq->word[1]); - zfcp_erp_adapter_shutdown(adapter, 0, 117, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); break; case FSF_PROT_ERROR_STATE: case FSF_PROT_SEQ_NUMB_ERROR: - zfcp_erp_adapter_reopen(adapter, 0, 98, req); + zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); req->status |= ZFCP_STATUS_FSFREQ_RETRY; break; case FSF_PROT_UNSUPP_QTCB_TYPE: dev_err(&adapter->ccw_device->dev, "The QTCB type is not supported by the FCP adapter\n"); - zfcp_erp_adapter_shutdown(adapter, 0, 118, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); break; case FSF_PROT_HOST_CONNECTION_INITIALIZING: atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, @@ -420,27 +418,29 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) dev_err(&adapter->ccw_device->dev, "0x%Lx is an ambiguous request identifier\n", (unsigned long long)qtcb->bottom.support.req_handle); - zfcp_erp_adapter_shutdown(adapter, 0, 78, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); break; case FSF_PROT_LINK_DOWN: - zfcp_fsf_link_down_info_eval(req, 37, &psq->link_down_info); + zfcp_fsf_link_down_info_eval(req, "fspse_5", + &psq->link_down_info); /* FIXME: reopening adapter now? better wait for link up */ - zfcp_erp_adapter_reopen(adapter, 0, 79, req); + zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); break; case FSF_PROT_REEST_QUEUE: /* All ports should be marked as ready to run again */ - zfcp_erp_modify_adapter_status(adapter, 28, NULL, + zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | - ZFCP_STATUS_COMMON_ERP_FAILED, 99, req); + ZFCP_STATUS_COMMON_ERP_FAILED, + "fspse_8", req); break; default: dev_err(&adapter->ccw_device->dev, "0x%x is not a valid transfer protocol status\n", qtcb->prefix.prot_status); - zfcp_erp_adapter_shutdown(adapter, 0, 119, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); } req->status |= ZFCP_STATUS_FSFREQ_ERROR; } @@ -526,7 +526,7 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) dev_err(&adapter->ccw_device->dev, "Unknown or unsupported arbitrated loop " "fibre channel topology detected\n"); - zfcp_erp_adapter_shutdown(adapter, 0, 127, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); return -EIO; } @@ -560,7 +560,7 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) "FCP adapter maximum QTCB size (%d bytes) " "is too small\n", bottom->max_qtcb_size); - zfcp_erp_adapter_shutdown(adapter, 0, 129, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); return; } atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, @@ -577,11 +577,11 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, &adapter->status); - zfcp_fsf_link_down_info_eval(req, 42, + zfcp_fsf_link_down_info_eval(req, "fsecdh2", &qtcb->header.fsf_status_qual.link_down_info); break; default: - zfcp_erp_adapter_shutdown(adapter, 0, 130, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); return; } @@ -597,14 +597,14 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) dev_err(&adapter->ccw_device->dev, "The FCP adapter only supports newer " "control block versions\n"); - zfcp_erp_adapter_shutdown(adapter, 0, 125, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); return; } if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { dev_err(&adapter->ccw_device->dev, "The FCP adapter only supports older " "control block versions\n"); - zfcp_erp_adapter_shutdown(adapter, 0, 126, req); + zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); } } @@ -617,9 +617,10 @@ static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) if (req->data) memcpy(req->data, bottom, sizeof(*bottom)); - if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) + if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { fc_host_permanent_port_name(shost) = bottom->wwpn; - else + fc_host_port_type(shost) = FC_PORTTYPE_NPIV; + } else fc_host_permanent_port_name(shost) = fc_host_port_name(shost); fc_host_maxframe_size(shost) = bottom->maximum_frame_size; fc_host_supported_speeds(shost) = bottom->supported_speed; @@ -638,20 +639,12 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) break; case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: zfcp_fsf_exchange_port_evaluate(req); - zfcp_fsf_link_down_info_eval(req, 43, + zfcp_fsf_link_down_info_eval(req, "fsepdh1", &qtcb->header.fsf_status_qual.link_down_info); break; } } -static int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter) -{ - if (atomic_read(&adapter->req_q.count) > 0) - return 1; - atomic_inc(&adapter->qdio_outb_full); - return 0; -} - static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) __releases(&adapter->req_q_lock) __acquires(&adapter->req_q_lock) @@ -735,7 +728,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, req->adapter = adapter; req->fsf_command = fsf_cmd; - req->req_id = adapter->req_no++; + req->req_id = adapter->req_no; req->sbal_number = 1; req->sbal_first = req_q->first; req->sbal_last = req_q->first; @@ -791,13 +784,14 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) if (zfcp_reqlist_find_safe(adapter, req)) zfcp_reqlist_remove(adapter, req); spin_unlock_irqrestore(&adapter->req_list_lock, flags); - zfcp_erp_adapter_reopen(adapter, 0, 116, req); + zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); return -EIO; } /* Don't increase for unsolicited status */ if (req->qtcb) adapter->fsf_req_seq_no++; + adapter->req_no++; return 0; } @@ -870,14 +864,14 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) switch (req->qtcb->header.fsf_status) { case FSF_PORT_HANDLE_NOT_VALID: if (fsq->word[0] == fsq->word[1]) { - zfcp_erp_adapter_reopen(unit->port->adapter, 0, 104, - req); + zfcp_erp_adapter_reopen(unit->port->adapter, 0, + "fsafch1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; } break; case FSF_LUN_HANDLE_NOT_VALID: if (fsq->word[0] == fsq->word[1]) { - zfcp_erp_port_reopen(unit->port, 0, 105, req); + zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; } break; @@ -885,12 +879,12 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; break; case FSF_PORT_BOXED: - zfcp_erp_port_boxed(unit->port, 47, req); + zfcp_erp_port_boxed(unit->port, "fsafch3", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; case FSF_LUN_BOXED: - zfcp_erp_unit_boxed(unit, 48, req); + zfcp_erp_unit_boxed(unit, "fsafch4", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; @@ -912,27 +906,22 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) /** * zfcp_fsf_abort_fcp_command - abort running SCSI command * @old_req_id: unsigned long - * @adapter: pointer to struct zfcp_adapter * @unit: pointer to struct zfcp_unit - * @req_flags: integer specifying the request flags * Returns: pointer to struct zfcp_fsf_req - * - * FIXME(design): should be watched by a timeout !!! */ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, - struct zfcp_adapter *adapter, - struct zfcp_unit *unit, - int req_flags) + struct zfcp_unit *unit) { struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; + struct zfcp_adapter *adapter = unit->port->adapter; - spin_lock(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + spin_lock_bh(&adapter->req_q_lock); + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, - req_flags, adapter->pool.fsf_req_abort); + 0, adapter->pool.fsf_req_abort); if (IS_ERR(req)) { req = NULL; goto out; @@ -960,7 +949,7 @@ out_error_free: zfcp_fsf_req_free(req); req = NULL; out: - spin_unlock(&adapter->req_q_lock); + spin_unlock_bh(&adapter->req_q_lock); return req; } @@ -998,7 +987,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) ZFCP_STATUS_FSFREQ_RETRY; break; case FSF_PORT_HANDLE_NOT_VALID: - zfcp_erp_adapter_reopen(adapter, 0, 106, req); + zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); case FSF_GENERIC_COMMAND_REJECTED: case FSF_PAYLOAD_SIZE_MISMATCH: case FSF_REQUEST_SIZE_TOO_LARGE: @@ -1174,12 +1163,8 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els) struct fsf_qtcb_bottom_support *bottom; int ret = -EIO; - if (unlikely(!(atomic_read(&els->port->status) & - ZFCP_STATUS_COMMON_UNBLOCKED))) - return -EBUSY; - - spin_lock(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + spin_lock_bh(&adapter->req_q_lock); + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, ZFCP_REQ_AUTO_CLEANUP, NULL); @@ -1212,7 +1197,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els) failed_send: zfcp_fsf_req_free(req); out: - spin_unlock(&adapter->req_q_lock); + spin_unlock_bh(&adapter->req_q_lock); return ret; } @@ -1224,7 +1209,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) int retval = -EIO; spin_lock_bh(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, @@ -1320,7 +1305,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) return -EOPNOTSUPP; spin_lock_bh(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, ZFCP_REQ_AUTO_CLEANUP, @@ -1366,7 +1351,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, return -EOPNOTSUPP; spin_lock_bh(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (zfcp_fsf_req_sbal_get(adapter)) goto out; req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, @@ -1416,7 +1401,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) "Not enough FCP adapter resources to open " "remote port 0x%016Lx\n", (unsigned long long)port->wwpn); - zfcp_erp_port_failed(port, 31, req); + zfcp_erp_port_failed(port, "fsoph_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_ADAPTER_STATUS_AVAILABLE: @@ -1522,13 +1507,13 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) switch (req->qtcb->header.fsf_status) { case FSF_PORT_HANDLE_NOT_VALID: - zfcp_erp_adapter_reopen(port->adapter, 0, 107, req); + zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_ADAPTER_STATUS_AVAILABLE: break; case FSF_GOOD: - zfcp_erp_modify_port_status(port, 33, req, + zfcp_erp_modify_port_status(port, "fscph_2", req, ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR); break; @@ -1657,7 +1642,7 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { req->status |= ZFCP_STATUS_FSFREQ_ERROR; - zfcp_erp_adapter_reopen(wka_port->adapter, 0, 84, req); + zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); } wka_port->status = ZFCP_WKA_PORT_OFFLINE; @@ -1712,18 +1697,18 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) struct zfcp_unit *unit; if (req->status & ZFCP_STATUS_FSFREQ_ERROR) - goto skip_fsfstatus; + return; switch (header->fsf_status) { case FSF_PORT_HANDLE_NOT_VALID: - zfcp_erp_adapter_reopen(port->adapter, 0, 108, req); + zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_ACCESS_DENIED: zfcp_fsf_access_denied_port(req, port); break; case FSF_PORT_BOXED: - zfcp_erp_port_boxed(port, 50, req); + zfcp_erp_port_boxed(port, "fscpph2", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; /* can't use generic zfcp_erp_modify_port_status because @@ -1752,8 +1737,6 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) &unit->status); break; } -skip_fsfstatus: - atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, &port->status); } /** @@ -1789,8 +1772,6 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) req->erp_action = erp_action; req->handler = zfcp_fsf_close_physical_port_handler; erp_action->fsf_req = req; - atomic_set_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, - &erp_action->port->status); zfcp_fsf_start_erp_timer(req); retval = zfcp_fsf_req_send(req); @@ -1825,7 +1806,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) switch (header->fsf_status) { case FSF_PORT_HANDLE_NOT_VALID: - zfcp_erp_adapter_reopen(unit->port->adapter, 0, 109, req); + zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); /* fall through */ case FSF_LUN_ALREADY_OPEN: break; @@ -1835,7 +1816,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); break; case FSF_PORT_BOXED: - zfcp_erp_port_boxed(unit->port, 51, req); + zfcp_erp_port_boxed(unit->port, "fsouh_2", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; @@ -1851,7 +1832,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) else zfcp_act_eval_err(adapter, header->fsf_status_qual.word[2]); - zfcp_erp_unit_access_denied(unit, 60, req); + zfcp_erp_unit_access_denied(unit, "fsouh_3", req); atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); req->status |= ZFCP_STATUS_FSFREQ_ERROR; @@ -1862,7 +1843,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) "0x%016Lx on port 0x%016Lx\n", (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_unit_failed(unit, 34, req); + zfcp_erp_unit_failed(unit, "fsouh_4", req); /* fall through */ case FSF_INVALID_COMMAND_OPTION: req->status |= ZFCP_STATUS_FSFREQ_ERROR; @@ -1911,9 +1892,9 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) "port 0x%016Lx)\n", (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_unit_failed(unit, 35, req); + zfcp_erp_unit_failed(unit, "fsouh_5", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; - zfcp_erp_unit_shutdown(unit, 0, 80, req); + zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); } else if (!exclusive && readwrite) { dev_err(&adapter->ccw_device->dev, "Shared read-write access not " @@ -1921,9 +1902,9 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) "0x%016Lx)\n", (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_unit_failed(unit, 36, req); + zfcp_erp_unit_failed(unit, "fsouh_7", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; - zfcp_erp_unit_shutdown(unit, 0, 81, req); + zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); } } break; @@ -1988,15 +1969,15 @@ static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) switch (req->qtcb->header.fsf_status) { case FSF_PORT_HANDLE_NOT_VALID: - zfcp_erp_adapter_reopen(unit->port->adapter, 0, 110, req); + zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_LUN_HANDLE_NOT_VALID: - zfcp_erp_port_reopen(unit->port, 0, 111, req); + zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_PORT_BOXED: - zfcp_erp_port_boxed(unit->port, 52, req); + zfcp_erp_port_boxed(unit->port, "fscuh_3", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; @@ -2073,7 +2054,6 @@ static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) struct fsf_qual_latency_info *lat_inf; struct latency_cont *lat; struct zfcp_unit *unit = req->unit; - unsigned long flags; lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; @@ -2091,11 +2071,11 @@ static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) return; } - spin_lock_irqsave(&unit->latencies.lock, flags); + spin_lock(&unit->latencies.lock); zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); lat->counter++; - spin_unlock_irqrestore(&unit->latencies.lock, flags); + spin_unlock(&unit->latencies.lock); } #ifdef CONFIG_BLK_DEV_IO_TRACE @@ -2147,7 +2127,6 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { set_host_byte(scpnt, DID_SOFT_ERROR); - set_driver_byte(scpnt, SUGGEST_RETRY); goto skip_fsfstatus; } @@ -2237,12 +2216,12 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) switch (header->fsf_status) { case FSF_HANDLE_MISMATCH: case FSF_PORT_HANDLE_NOT_VALID: - zfcp_erp_adapter_reopen(unit->port->adapter, 0, 112, req); + zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_FCPLUN_NOT_VALID: case FSF_LUN_HANDLE_NOT_VALID: - zfcp_erp_port_reopen(unit->port, 0, 113, req); + zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_SERVICE_CLASS_NOT_SUPPORTED: @@ -2258,7 +2237,8 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) req->qtcb->bottom.io.data_direction, (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 133, req); + zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", + req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_CMND_LENGTH_NOT_VALID: @@ -2268,16 +2248,17 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) req->qtcb->bottom.io.fcp_cmnd_length, (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 134, req); + zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", + req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_PORT_BOXED: - zfcp_erp_port_boxed(unit->port, 53, req); + zfcp_erp_port_boxed(unit->port, "fssfch5", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; case FSF_LUN_BOXED: - zfcp_erp_unit_boxed(unit, 54, req); + zfcp_erp_unit_boxed(unit, "fssfch6", req); req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; @@ -2314,30 +2295,29 @@ static void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl) /** * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) - * @adapter: adapter where scsi command is issued * @unit: unit where command is sent to * @scsi_cmnd: scsi command to be sent - * @timer: timer to be started when request is initiated - * @req_flags: flags for fsf_request */ -int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, - struct zfcp_unit *unit, - struct scsi_cmnd *scsi_cmnd, - int use_timer, int req_flags) +int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, + struct scsi_cmnd *scsi_cmnd) { struct zfcp_fsf_req *req; struct fcp_cmnd_iu *fcp_cmnd_iu; unsigned int sbtype; int real_bytes, retval = -EIO; + struct zfcp_adapter *adapter = unit->port->adapter; if (unlikely(!(atomic_read(&unit->status) & ZFCP_STATUS_COMMON_UNBLOCKED))) return -EBUSY; spin_lock(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + if (atomic_read(&adapter->req_q.count) <= 0) { + atomic_inc(&adapter->qdio_outb_full); goto out; - req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, + } + req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, + ZFCP_REQ_AUTO_CLEANUP, adapter->pool.fsf_req_scsi); if (IS_ERR(req)) { retval = PTR_ERR(req); @@ -2411,7 +2391,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, "on port 0x%016Lx closed\n", (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); - zfcp_erp_unit_shutdown(unit, 0, 131, req); + zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); retval = -EINVAL; } goto failed_scsi_cmnd; @@ -2419,9 +2399,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); - if (use_timer) - zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); - retval = zfcp_fsf_req_send(req); if (unlikely(retval)) goto failed_scsi_cmnd; @@ -2439,28 +2416,25 @@ out: /** * zfcp_fsf_send_fcp_ctm - send SCSI task management command - * @adapter: pointer to struct zfcp-adapter * @unit: pointer to struct zfcp_unit * @tm_flags: unsigned byte for task management flags - * @req_flags: int request flags * Returns: on success pointer to struct fsf_req, NULL otherwise */ -struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, - struct zfcp_unit *unit, - u8 tm_flags, int req_flags) +struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) { struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; struct fcp_cmnd_iu *fcp_cmnd_iu; + struct zfcp_adapter *adapter = unit->port->adapter; if (unlikely(!(atomic_read(&unit->status) & ZFCP_STATUS_COMMON_UNBLOCKED))) return NULL; - spin_lock(&adapter->req_q_lock); - if (!zfcp_fsf_sbal_available(adapter)) + spin_lock_bh(&adapter->req_q_lock); + if (zfcp_fsf_req_sbal_get(adapter)) goto out; - req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, + req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 0, adapter->pool.fsf_req_scsi); if (IS_ERR(req)) { req = NULL; @@ -2492,7 +2466,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, zfcp_fsf_req_free(req); req = NULL; out: - spin_unlock(&adapter->req_q_lock); + spin_unlock_bh(&adapter->req_q_lock); return req; } diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index 8bb200252347..df7f232faba8 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -127,10 +127,6 @@ #define FSF_STATUS_READ_CFDC_UPDATED 0x0000000A #define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C -/* status subtypes in status read buffer */ -#define FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT 0x00000001 -#define FSF_STATUS_READ_SUB_ERROR_PORT 0x00000002 - /* status subtypes for link down */ #define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK 0x00000000 #define FSF_STATUS_READ_SUB_FDISC_FAILED 0x00000001 diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 33e0a206a0a4..e0a215309df0 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -11,9 +11,6 @@ #include "zfcp_ext.h" -/* FIXME(tune): free space should be one max. SBAL chain plus what? */ -#define ZFCP_QDIO_PCI_INTERVAL (QDIO_MAX_BUFFERS_PER_Q \ - - (FSF_MAX_SBALS_PER_REQ + 4)) #define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer)) static int zfcp_qdio_buffers_enqueue(struct qdio_buffer **sbal) @@ -58,7 +55,7 @@ void zfcp_qdio_free(struct zfcp_adapter *adapter) } } -static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, u8 id) +static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, char *id) { dev_warn(&adapter->ccw_device->dev, "A QDIO problem occurred\n"); @@ -77,6 +74,23 @@ static void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int cnt) } } +/* this needs to be called prior to updating the queue fill level */ +static void zfcp_qdio_account(struct zfcp_adapter *adapter) +{ + ktime_t now; + s64 span; + int free, used; + + spin_lock(&adapter->qdio_stat_lock); + now = ktime_get(); + span = ktime_us_delta(now, adapter->req_q_time); + free = max(0, atomic_read(&adapter->req_q.count)); + used = QDIO_MAX_BUFFERS_PER_Q - free; + adapter->req_q_util += used * span; + adapter->req_q_time = now; + spin_unlock(&adapter->qdio_stat_lock); +} + static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int qdio_err, int queue_no, int first, int count, unsigned long parm) @@ -86,13 +100,14 @@ static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int qdio_err, if (unlikely(qdio_err)) { zfcp_hba_dbf_event_qdio(adapter, qdio_err, first, count); - zfcp_qdio_handler_error(adapter, 140); + zfcp_qdio_handler_error(adapter, "qdireq1"); return; } /* cleanup all SBALs being program-owned now */ zfcp_qdio_zero_sbals(queue->sbal, first, count); + zfcp_qdio_account(adapter); atomic_add(count, &queue->count); wake_up(&adapter->request_wq); } @@ -154,7 +169,7 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err, if (unlikely(qdio_err)) { zfcp_hba_dbf_event_qdio(adapter, qdio_err, first, count); - zfcp_qdio_handler_error(adapter, 147); + zfcp_qdio_handler_error(adapter, "qdires1"); return; } @@ -346,21 +361,12 @@ int zfcp_qdio_send(struct zfcp_fsf_req *fsf_req) struct zfcp_qdio_queue *req_q = &adapter->req_q; int first = fsf_req->sbal_first; int count = fsf_req->sbal_number; - int retval, pci, pci_batch; - struct qdio_buffer_element *sbale; + int retval; + unsigned int qdio_flags = QDIO_FLAG_SYNC_OUTPUT; - /* acknowledgements for transferred buffers */ - pci_batch = adapter->req_q_pci_batch + count; - if (unlikely(pci_batch >= ZFCP_QDIO_PCI_INTERVAL)) { - pci_batch %= ZFCP_QDIO_PCI_INTERVAL; - pci = first + count - (pci_batch + 1); - pci %= QDIO_MAX_BUFFERS_PER_Q; - sbale = zfcp_qdio_sbale(req_q, pci, 0); - sbale->flags |= SBAL_FLAGS0_PCI; - } + zfcp_qdio_account(adapter); - retval = do_QDIO(adapter->ccw_device, QDIO_FLAG_SYNC_OUTPUT, 0, first, - count); + retval = do_QDIO(adapter->ccw_device, qdio_flags, 0, first, count); if (unlikely(retval)) { zfcp_qdio_zero_sbals(req_q->sbal, first, count); return retval; @@ -370,7 +376,6 @@ int zfcp_qdio_send(struct zfcp_fsf_req *fsf_req) atomic_sub(count, &req_q->count); req_q->first += count; req_q->first %= QDIO_MAX_BUFFERS_PER_Q; - adapter->req_q_pci_batch = pci_batch; return 0; } @@ -441,7 +446,6 @@ void zfcp_qdio_close(struct zfcp_adapter *adapter) } req_q->first = 0; atomic_set(&req_q->count, 0); - adapter->req_q_pci_batch = 0; adapter->resp_q.first = 0; atomic_set(&adapter->resp_q.count, 0); } @@ -479,7 +483,6 @@ int zfcp_qdio_open(struct zfcp_adapter *adapter) /* set index of first avalable SBALS / number of available SBALS */ adapter->req_q.first = 0; atomic_set(&adapter->req_q.count, QDIO_MAX_BUFFERS_PER_Q); - adapter->req_q_pci_batch = 0; return 0; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 9dc42a68fbdd..58201e1ae478 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -3,7 +3,7 @@ * * Interface to Linux SCSI midlayer. * - * Copyright IBM Corporation 2002, 2008 + * Copyright IBM Corporation 2002, 2009 */ #define KMSG_COMPONENT "zfcp" @@ -27,9 +27,7 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu) static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt) { struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata; - atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status); unit->device = NULL; - zfcp_erp_unit_failed(unit, 12, NULL); zfcp_unit_put(unit); } @@ -58,8 +56,8 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt, { struct zfcp_unit *unit; struct zfcp_adapter *adapter; - int status; - int ret; + int status, scsi_result, ret; + struct fc_rport *rport = starget_to_rport(scsi_target(scpnt->device)); /* reset the status for this request */ scpnt->result = 0; @@ -81,6 +79,14 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt, return 0; } + scsi_result = fc_remote_port_chkready(rport); + if (unlikely(scsi_result)) { + scpnt->result = scsi_result; + zfcp_scsi_dbf_event_result("fail", 4, adapter, scpnt, NULL); + scpnt->scsi_done(scpnt); + return 0; + } + status = atomic_read(&unit->status); if (unlikely((status & ZFCP_STATUS_COMMON_ERP_FAILED) || !(status & ZFCP_STATUS_COMMON_RUNNING))) { @@ -88,8 +94,7 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt, return 0;; } - ret = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, 0, - ZFCP_REQ_AUTO_CLEANUP); + ret = zfcp_fsf_send_fcp_command_task(unit, scpnt); if (unlikely(ret == -EBUSY)) return SCSI_MLQUEUE_DEVICE_BUSY; else if (unlikely(ret < 0)) @@ -133,8 +138,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdp) read_lock_irqsave(&zfcp_data.config_lock, flags); unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun); - if (unit && - (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_REGISTERED)) { + if (unit) { sdp->hostdata = unit; unit->device = sdp; zfcp_unit_get(unit); @@ -147,79 +151,91 @@ out: static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) { - struct Scsi_Host *scsi_host; - struct zfcp_adapter *adapter; - struct zfcp_unit *unit; - struct zfcp_fsf_req *fsf_req; + struct Scsi_Host *scsi_host = scpnt->device->host; + struct zfcp_adapter *adapter = + (struct zfcp_adapter *) scsi_host->hostdata[0]; + struct zfcp_unit *unit = scpnt->device->hostdata; + struct zfcp_fsf_req *old_req, *abrt_req; unsigned long flags; unsigned long old_req_id = (unsigned long) scpnt->host_scribble; int retval = SUCCESS; - - scsi_host = scpnt->device->host; - adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; - unit = scpnt->device->hostdata; + int retry = 3; /* avoid race condition between late normal completion and abort */ write_lock_irqsave(&adapter->abort_lock, flags); - /* Check whether corresponding fsf_req is still pending */ spin_lock(&adapter->req_list_lock); - fsf_req = zfcp_reqlist_find(adapter, old_req_id); + old_req = zfcp_reqlist_find(adapter, old_req_id); spin_unlock(&adapter->req_list_lock); - if (!fsf_req) { + if (!old_req) { write_unlock_irqrestore(&adapter->abort_lock, flags); - zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL, 0); - return retval; + zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL, + old_req_id); + return SUCCESS; } - fsf_req->data = NULL; + old_req->data = NULL; /* don't access old fsf_req after releasing the abort_lock */ write_unlock_irqrestore(&adapter->abort_lock, flags); - fsf_req = zfcp_fsf_abort_fcp_command(old_req_id, adapter, unit, 0); - if (!fsf_req) { - zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL, - old_req_id); - retval = FAILED; - return retval; + while (retry--) { + abrt_req = zfcp_fsf_abort_fcp_command(old_req_id, unit); + if (abrt_req) + break; + + zfcp_erp_wait(adapter); + if (!(atomic_read(&adapter->status) & + ZFCP_STATUS_COMMON_RUNNING)) { + zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL, + old_req_id); + return SUCCESS; + } } + if (!abrt_req) + return FAILED; - __wait_event(fsf_req->completion_wq, - fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); + wait_event(abrt_req->completion_wq, + abrt_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); - if (fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED) { - zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, fsf_req, 0); - } else if (fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED) { - zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, fsf_req, 0); - } else { - zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, fsf_req, 0); + if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED) + zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, abrt_req, 0); + else if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED) + zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, abrt_req, 0); + else { + zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, abrt_req, 0); retval = FAILED; } - zfcp_fsf_req_free(fsf_req); - + zfcp_fsf_req_free(abrt_req); return retval; } -static int zfcp_task_mgmt_function(struct zfcp_unit *unit, u8 tm_flags, - struct scsi_cmnd *scpnt) +static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags) { + struct zfcp_unit *unit = scpnt->device->hostdata; struct zfcp_adapter *adapter = unit->port->adapter; struct zfcp_fsf_req *fsf_req; int retval = SUCCESS; - - /* issue task management function */ - fsf_req = zfcp_fsf_send_fcp_ctm(adapter, unit, tm_flags, 0); - if (!fsf_req) { - zfcp_scsi_dbf_event_devreset("nres", tm_flags, unit, scpnt); - return FAILED; + int retry = 3; + + while (retry--) { + fsf_req = zfcp_fsf_send_fcp_ctm(unit, tm_flags); + if (fsf_req) + break; + + zfcp_erp_wait(adapter); + if (!(atomic_read(&adapter->status) & + ZFCP_STATUS_COMMON_RUNNING)) { + zfcp_scsi_dbf_event_devreset("nres", tm_flags, unit, + scpnt); + return SUCCESS; + } } + if (!fsf_req) + return FAILED; - __wait_event(fsf_req->completion_wq, - fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); + wait_event(fsf_req->completion_wq, + fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); - /* - * check completion status of task management function - */ if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) { zfcp_scsi_dbf_event_devreset("fail", tm_flags, unit, scpnt); retval = FAILED; @@ -230,40 +246,25 @@ static int zfcp_task_mgmt_function(struct zfcp_unit *unit, u8 tm_flags, zfcp_scsi_dbf_event_devreset("okay", tm_flags, unit, scpnt); zfcp_fsf_req_free(fsf_req); - return retval; } static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt) { - struct zfcp_unit *unit = scpnt->device->hostdata; - - if (!unit) { - WARN_ON(1); - return SUCCESS; - } - return zfcp_task_mgmt_function(unit, FCP_LOGICAL_UNIT_RESET, scpnt); + return zfcp_task_mgmt_function(scpnt, FCP_LOGICAL_UNIT_RESET); } static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt) { - struct zfcp_unit *unit = scpnt->device->hostdata; - - if (!unit) { - WARN_ON(1); - return SUCCESS; - } - return zfcp_task_mgmt_function(unit, FCP_TARGET_RESET, scpnt); + return zfcp_task_mgmt_function(scpnt, FCP_TARGET_RESET); } static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) { - struct zfcp_unit *unit; - struct zfcp_adapter *adapter; + struct zfcp_unit *unit = scpnt->device->hostdata; + struct zfcp_adapter *adapter = unit->port->adapter; - unit = scpnt->device->hostdata; - adapter = unit->port->adapter; - zfcp_erp_adapter_reopen(adapter, 0, 141, scpnt); + zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt); zfcp_erp_wait(adapter); return SUCCESS; @@ -479,6 +480,109 @@ static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) rport->dev_loss_tmo = timeout; } +/** + * zfcp_scsi_dev_loss_tmo_callbk - Free any reference to rport + * @rport: The rport that is about to be deleted. + */ +static void zfcp_scsi_dev_loss_tmo_callbk(struct fc_rport *rport) +{ + struct zfcp_port *port = rport->dd_data; + + write_lock_irq(&zfcp_data.config_lock); + port->rport = NULL; + write_unlock_irq(&zfcp_data.config_lock); +} + +/** + * zfcp_scsi_terminate_rport_io - Terminate all I/O on a rport + * @rport: The FC rport where to teminate I/O + * + * Abort all pending SCSI commands for a port by closing the + * port. Using a reopen for avoids a conflict with a shutdown + * overwriting a reopen. + */ +static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport) +{ + struct zfcp_port *port = rport->dd_data; + + zfcp_erp_port_reopen(port, 0, "sctrpi1", NULL); +} + +static void zfcp_scsi_rport_register(struct zfcp_port *port) +{ + struct fc_rport_identifiers ids; + struct fc_rport *rport; + + ids.node_name = port->wwnn; + ids.port_name = port->wwpn; + ids.port_id = port->d_id; + ids.roles = FC_RPORT_ROLE_FCP_TARGET; + + rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids); + if (!rport) { + dev_err(&port->adapter->ccw_device->dev, + "Registering port 0x%016Lx failed\n", + (unsigned long long)port->wwpn); + return; + } + + rport->dd_data = port; + rport->maxframe_size = port->maxframe_size; + rport->supported_classes = port->supported_classes; + port->rport = rport; +} + +static void zfcp_scsi_rport_block(struct zfcp_port *port) +{ + if (port->rport) + fc_remote_port_delete(port->rport); +} + +void zfcp_scsi_schedule_rport_register(struct zfcp_port *port) +{ + zfcp_port_get(port); + port->rport_task = RPORT_ADD; + + if (!queue_work(zfcp_data.work_queue, &port->rport_work)) + zfcp_port_put(port); +} + +void zfcp_scsi_schedule_rport_block(struct zfcp_port *port) +{ + zfcp_port_get(port); + port->rport_task = RPORT_DEL; + + if (!queue_work(zfcp_data.work_queue, &port->rport_work)) + zfcp_port_put(port); +} + +void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *adapter) +{ + struct zfcp_port *port; + + list_for_each_entry(port, &adapter->port_list_head, list) + zfcp_scsi_schedule_rport_block(port); +} + +void zfcp_scsi_rport_work(struct work_struct *work) +{ + struct zfcp_port *port = container_of(work, struct zfcp_port, + rport_work); + + while (port->rport_task) { + if (port->rport_task == RPORT_ADD) { + port->rport_task = RPORT_NONE; + zfcp_scsi_rport_register(port); + } else { + port->rport_task = RPORT_NONE; + zfcp_scsi_rport_block(port); + } + } + + zfcp_port_put(port); +} + + struct fc_function_template zfcp_transport_functions = { .show_starget_port_id = 1, .show_starget_port_name = 1, @@ -497,6 +601,8 @@ struct fc_function_template zfcp_transport_functions = { .reset_fc_host_stats = zfcp_reset_fc_host_stats, .set_rport_dev_loss_tmo = zfcp_set_rport_dev_loss_tmo, .get_host_port_state = zfcp_get_host_port_state, + .dev_loss_tmo_callbk = zfcp_scsi_dev_loss_tmo_callbk, + .terminate_rport_io = zfcp_scsi_terminate_rport_io, .show_host_port_state = 1, /* no functions registered for following dynamic attributes but directly set by LLDD */ diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 899af2b45b1e..9a3b8e261c0a 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -112,9 +112,9 @@ static ZFCP_DEV_ATTR(_feat, failed, S_IWUSR | S_IRUGO, \ zfcp_sysfs_##_feat##_failed_show, \ zfcp_sysfs_##_feat##_failed_store); -ZFCP_SYSFS_FAILED(zfcp_adapter, adapter, adapter, 44, 93); -ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, 45, 96); -ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, 46, 97); +ZFCP_SYSFS_FAILED(zfcp_adapter, adapter, adapter, "syafai1", "syafai2"); +ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, "sypfai1", "sypfai2"); +ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, "syufai1", "syufai2"); static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev, struct device_attribute *attr, @@ -168,7 +168,7 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev, goto out; } - zfcp_erp_port_shutdown(port, 0, 92, NULL); + zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL); zfcp_erp_wait(adapter); zfcp_port_put(port); zfcp_port_dequeue(port); @@ -222,7 +222,7 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev, retval = 0; - zfcp_erp_unit_reopen(unit, 0, 94, NULL); + zfcp_erp_unit_reopen(unit, 0, "syuas_1", NULL); zfcp_erp_wait(unit->port->adapter); zfcp_unit_put(unit); out: @@ -268,7 +268,7 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev, goto out; } - zfcp_erp_unit_shutdown(unit, 0, 95, NULL); + zfcp_erp_unit_shutdown(unit, 0, "syurs_1", NULL); zfcp_erp_wait(unit->port->adapter); zfcp_unit_put(unit); zfcp_unit_dequeue(unit); @@ -318,10 +318,9 @@ zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \ struct zfcp_unit *unit = sdev->hostdata; \ struct zfcp_latencies *lat = &unit->latencies; \ struct zfcp_adapter *adapter = unit->port->adapter; \ - unsigned long flags; \ unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \ \ - spin_lock_irqsave(&lat->lock, flags); \ + spin_lock_bh(&lat->lock); \ fsum = lat->_name.fabric.sum * adapter->timer_ticks; \ fmin = lat->_name.fabric.min * adapter->timer_ticks; \ fmax = lat->_name.fabric.max * adapter->timer_ticks; \ @@ -329,7 +328,7 @@ zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \ cmin = lat->_name.channel.min * adapter->timer_ticks; \ cmax = lat->_name.channel.max * adapter->timer_ticks; \ cc = lat->_name.counter; \ - spin_unlock_irqrestore(&lat->lock, flags); \ + spin_unlock_bh(&lat->lock); \ \ do_div(fsum, 1000); \ do_div(fmin, 1000); \ @@ -487,7 +486,8 @@ static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev, struct zfcp_adapter *adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; - return sprintf(buf, "%d\n", atomic_read(&adapter->qdio_outb_full)); + return sprintf(buf, "%d %llu\n", atomic_read(&adapter->qdio_outb_full), + (unsigned long long)adapter->req_q_util); } static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL); diff --git a/drivers/s390/sysinfo.c b/drivers/s390/sysinfo.c deleted file mode 100644 index 0eea90781385..000000000000 --- a/drivers/s390/sysinfo.c +++ /dev/null @@ -1,469 +0,0 @@ -/* - * drivers/s390/sysinfo.c - * - * Copyright IBM Corp. 2001, 2008 - * Author(s): Ulrich Weigand (Ulrich.Weigand@de.ibm.com) - * Martin Schwidefsky <schwidefsky@de.ibm.com> - */ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/module.h> -#include <asm/ebcdic.h> -#include <asm/sysinfo.h> -#include <asm/cpcmd.h> - -/* Sigh, math-emu. Don't ask. */ -#include <asm/sfp-util.h> -#include <math-emu/soft-fp.h> -#include <math-emu/single.h> - -static inline int stsi_0(void) -{ - int rc = stsi (NULL, 0, 0, 0); - return rc == -ENOSYS ? rc : (((unsigned int) rc) >> 28); -} - -static int stsi_1_1_1(struct sysinfo_1_1_1 *info, char *page, int len) -{ - if (stsi(info, 1, 1, 1) == -ENOSYS) - return len; - - EBCASC(info->manufacturer, sizeof(info->manufacturer)); - EBCASC(info->type, sizeof(info->type)); - EBCASC(info->model, sizeof(info->model)); - EBCASC(info->sequence, sizeof(info->sequence)); - EBCASC(info->plant, sizeof(info->plant)); - EBCASC(info->model_capacity, sizeof(info->model_capacity)); - EBCASC(info->model_perm_cap, sizeof(info->model_perm_cap)); - EBCASC(info->model_temp_cap, sizeof(info->model_temp_cap)); - len += sprintf(page + len, "Manufacturer: %-16.16s\n", - info->manufacturer); - len += sprintf(page + len, "Type: %-4.4s\n", - info->type); - if (info->model[0] != '\0') - /* - * Sigh: the model field has been renamed with System z9 - * to model_capacity and a new model field has been added - * after the plant field. To avoid confusing older programs - * the "Model:" prints "model_capacity model" or just - * "model_capacity" if the model string is empty . - */ - len += sprintf(page + len, - "Model: %-16.16s %-16.16s\n", - info->model_capacity, info->model); - else - len += sprintf(page + len, "Model: %-16.16s\n", - info->model_capacity); - len += sprintf(page + len, "Sequence Code: %-16.16s\n", - info->sequence); - len += sprintf(page + len, "Plant: %-4.4s\n", - info->plant); - len += sprintf(page + len, "Model Capacity: %-16.16s %08u\n", - info->model_capacity, *(u32 *) info->model_cap_rating); - if (info->model_perm_cap[0] != '\0') - len += sprintf(page + len, - "Model Perm. Capacity: %-16.16s %08u\n", - info->model_perm_cap, - *(u32 *) info->model_perm_cap_rating); - if (info->model_temp_cap[0] != '\0') - len += sprintf(page + len, - "Model Temp. Capacity: %-16.16s %08u\n", - info->model_temp_cap, - *(u32 *) info->model_temp_cap_rating); - return len; -} - -#if 0 /* Currently unused */ -static int stsi_1_2_1(struct sysinfo_1_2_1 *info, char *page, int len) -{ - if (stsi(info, 1, 2, 1) == -ENOSYS) - return len; - - len += sprintf(page + len, "\n"); - EBCASC(info->sequence, sizeof(info->sequence)); - EBCASC(info->plant, sizeof(info->plant)); - len += sprintf(page + len, "Sequence Code of CPU: %-16.16s\n", - info->sequence); - len += sprintf(page + len, "Plant of CPU: %-16.16s\n", - info->plant); - return len; -} -#endif - -static int stsi_1_2_2(struct sysinfo_1_2_2 *info, char *page, int len) -{ - struct sysinfo_1_2_2_extension *ext; - int i; - - if (stsi(info, 1, 2, 2) == -ENOSYS) - return len; - ext = (struct sysinfo_1_2_2_extension *) - ((unsigned long) info + info->acc_offset); - - len += sprintf(page + len, "\n"); - len += sprintf(page + len, "CPUs Total: %d\n", - info->cpus_total); - len += sprintf(page + len, "CPUs Configured: %d\n", - info->cpus_configured); - len += sprintf(page + len, "CPUs Standby: %d\n", - info->cpus_standby); - len += sprintf(page + len, "CPUs Reserved: %d\n", - info->cpus_reserved); - - if (info->format == 1) { - /* - * Sigh 2. According to the specification the alternate - * capability field is a 32 bit floating point number - * if the higher order 8 bits are not zero. Printing - * a floating point number in the kernel is a no-no, - * always print the number as 32 bit unsigned integer. - * The user-space needs to know about the strange - * encoding of the alternate cpu capability. - */ - len += sprintf(page + len, "Capability: %u %u\n", - info->capability, ext->alt_capability); - for (i = 2; i <= info->cpus_total; i++) - len += sprintf(page + len, - "Adjustment %02d-way: %u %u\n", - i, info->adjustment[i-2], - ext->alt_adjustment[i-2]); - - } else { - len += sprintf(page + len, "Capability: %u\n", - info->capability); - for (i = 2; i <= info->cpus_total; i++) - len += sprintf(page + len, - "Adjustment %02d-way: %u\n", - i, info->adjustment[i-2]); - } - - if (info->secondary_capability != 0) - len += sprintf(page + len, "Secondary Capability: %d\n", - info->secondary_capability); - - return len; -} - -#if 0 /* Currently unused */ -static int stsi_2_2_1(struct sysinfo_2_2_1 *info, char *page, int len) -{ - if (stsi(info, 2, 2, 1) == -ENOSYS) - return len; - - len += sprintf(page + len, "\n"); - EBCASC (info->sequence, sizeof(info->sequence)); - EBCASC (info->plant, sizeof(info->plant)); - len += sprintf(page + len, "Sequence Code of logical CPU: %-16.16s\n", - info->sequence); - len += sprintf(page + len, "Plant of logical CPU: %-16.16s\n", - info->plant); - return len; -} -#endif - -static int stsi_2_2_2(struct sysinfo_2_2_2 *info, char *page, int len) -{ - if (stsi(info, 2, 2, 2) == -ENOSYS) - return len; - - EBCASC (info->name, sizeof(info->name)); - - len += sprintf(page + len, "\n"); - len += sprintf(page + len, "LPAR Number: %d\n", - info->lpar_number); - - len += sprintf(page + len, "LPAR Characteristics: "); - if (info->characteristics & LPAR_CHAR_DEDICATED) - len += sprintf(page + len, "Dedicated "); - if (info->characteristics & LPAR_CHAR_SHARED) - len += sprintf(page + len, "Shared "); - if (info->characteristics & LPAR_CHAR_LIMITED) - len += sprintf(page + len, "Limited "); - len += sprintf(page + len, "\n"); - - len += sprintf(page + len, "LPAR Name: %-8.8s\n", - info->name); - - len += sprintf(page + len, "LPAR Adjustment: %d\n", - info->caf); - - len += sprintf(page + len, "LPAR CPUs Total: %d\n", - info->cpus_total); - len += sprintf(page + len, "LPAR CPUs Configured: %d\n", - info->cpus_configured); - len += sprintf(page + len, "LPAR CPUs Standby: %d\n", - info->cpus_standby); - len += sprintf(page + len, "LPAR CPUs Reserved: %d\n", - info->cpus_reserved); - len += sprintf(page + len, "LPAR CPUs Dedicated: %d\n", - info->cpus_dedicated); - len += sprintf(page + len, "LPAR CPUs Shared: %d\n", - info->cpus_shared); - return len; -} - -static int stsi_3_2_2(struct sysinfo_3_2_2 *info, char *page, int len) -{ - int i; - - if (stsi(info, 3, 2, 2) == -ENOSYS) - return len; - for (i = 0; i < info->count; i++) { - EBCASC (info->vm[i].name, sizeof(info->vm[i].name)); - EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi)); - len += sprintf(page + len, "\n"); - len += sprintf(page + len, "VM%02d Name: %-8.8s\n", - i, info->vm[i].name); - len += sprintf(page + len, "VM%02d Control Program: %-16.16s\n", - i, info->vm[i].cpi); - - len += sprintf(page + len, "VM%02d Adjustment: %d\n", - i, info->vm[i].caf); - - len += sprintf(page + len, "VM%02d CPUs Total: %d\n", - i, info->vm[i].cpus_total); - len += sprintf(page + len, "VM%02d CPUs Configured: %d\n", - i, info->vm[i].cpus_configured); - len += sprintf(page + len, "VM%02d CPUs Standby: %d\n", - i, info->vm[i].cpus_standby); - len += sprintf(page + len, "VM%02d CPUs Reserved: %d\n", - i, info->vm[i].cpus_reserved); - } - return len; -} - - -static int proc_read_sysinfo(char *page, char **start, - off_t off, int count, - int *eof, void *data) -{ - unsigned long info = get_zeroed_page (GFP_KERNEL); - int level, len; - - if (!info) - return 0; - - len = 0; - level = stsi_0(); - if (level >= 1) - len = stsi_1_1_1((struct sysinfo_1_1_1 *) info, page, len); - - if (level >= 1) - len = stsi_1_2_2((struct sysinfo_1_2_2 *) info, page, len); - - if (level >= 2) - len = stsi_2_2_2((struct sysinfo_2_2_2 *) info, page, len); - - if (level >= 3) - len = stsi_3_2_2((struct sysinfo_3_2_2 *) info, page, len); - - free_page (info); - return len; -} - -static __init int create_proc_sysinfo(void) -{ - create_proc_read_entry("sysinfo", 0444, NULL, - proc_read_sysinfo, NULL); - return 0; -} - -__initcall(create_proc_sysinfo); - -/* - * Service levels interface. - */ - -static DECLARE_RWSEM(service_level_sem); -static LIST_HEAD(service_level_list); - -int register_service_level(struct service_level *slr) -{ - struct service_level *ptr; - - down_write(&service_level_sem); - list_for_each_entry(ptr, &service_level_list, list) - if (ptr == slr) { - up_write(&service_level_sem); - return -EEXIST; - } - list_add_tail(&slr->list, &service_level_list); - up_write(&service_level_sem); - return 0; -} -EXPORT_SYMBOL(register_service_level); - -int unregister_service_level(struct service_level *slr) -{ - struct service_level *ptr, *next; - int rc = -ENOENT; - - down_write(&service_level_sem); - list_for_each_entry_safe(ptr, next, &service_level_list, list) { - if (ptr != slr) - continue; - list_del(&ptr->list); - rc = 0; - break; - } - up_write(&service_level_sem); - return rc; -} -EXPORT_SYMBOL(unregister_service_level); - -static void *service_level_start(struct seq_file *m, loff_t *pos) -{ - down_read(&service_level_sem); - return seq_list_start(&service_level_list, *pos); -} - -static void *service_level_next(struct seq_file *m, void *p, loff_t *pos) -{ - return seq_list_next(p, &service_level_list, pos); -} - -static void service_level_stop(struct seq_file *m, void *p) -{ - up_read(&service_level_sem); -} - -static int service_level_show(struct seq_file *m, void *p) -{ - struct service_level *slr; - - slr = list_entry(p, struct service_level, list); - slr->seq_print(m, slr); - return 0; -} - -static const struct seq_operations service_level_seq_ops = { - .start = service_level_start, - .next = service_level_next, - .stop = service_level_stop, - .show = service_level_show -}; - -static int service_level_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &service_level_seq_ops); -} - -static const struct file_operations service_level_ops = { - .open = service_level_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release -}; - -static void service_level_vm_print(struct seq_file *m, - struct service_level *slr) -{ - char *query_buffer, *str; - - query_buffer = kmalloc(1024, GFP_KERNEL | GFP_DMA); - if (!query_buffer) - return; - cpcmd("QUERY CPLEVEL", query_buffer, 1024, NULL); - str = strchr(query_buffer, '\n'); - if (str) - *str = 0; - seq_printf(m, "VM: %s\n", query_buffer); - kfree(query_buffer); -} - -static struct service_level service_level_vm = { - .seq_print = service_level_vm_print -}; - -static __init int create_proc_service_level(void) -{ - proc_create("service_levels", 0, NULL, &service_level_ops); - if (MACHINE_IS_VM) - register_service_level(&service_level_vm); - return 0; -} - -subsys_initcall(create_proc_service_level); - -/* - * Bogomips calculation based on cpu capability. - */ - -int get_cpu_capability(unsigned int *capability) -{ - struct sysinfo_1_2_2 *info; - int rc; - - info = (void *) get_zeroed_page(GFP_KERNEL); - if (!info) - return -ENOMEM; - rc = stsi(info, 1, 2, 2); - if (rc == -ENOSYS) - goto out; - rc = 0; - *capability = info->capability; -out: - free_page((unsigned long) info); - return rc; -} - -/* - * CPU capability might have changed. Therefore recalculate loops_per_jiffy. - */ -void s390_adjust_jiffies(void) -{ - struct sysinfo_1_2_2 *info; - const unsigned int fmil = 0x4b189680; /* 1e7 as 32-bit float. */ - FP_DECL_S(SA); FP_DECL_S(SB); FP_DECL_S(SR); - FP_DECL_EX; - unsigned int capability; - - info = (void *) get_zeroed_page(GFP_KERNEL); - if (!info) - return; - - if (stsi(info, 1, 2, 2) != -ENOSYS) { - /* - * Major sigh. The cpu capability encoding is "special". - * If the first 9 bits of info->capability are 0 then it - * is a 32 bit unsigned integer in the range 0 .. 2^23. - * If the first 9 bits are != 0 then it is a 32 bit float. - * In addition a lower value indicates a proportionally - * higher cpu capacity. Bogomips are the other way round. - * To get to a halfway suitable number we divide 1e7 - * by the cpu capability number. Yes, that means a floating - * point division .. math-emu here we come :-) - */ - FP_UNPACK_SP(SA, &fmil); - if ((info->capability >> 23) == 0) - FP_FROM_INT_S(SB, info->capability, 32, int); - else - FP_UNPACK_SP(SB, &info->capability); - FP_DIV_S(SR, SA, SB); - FP_TO_INT_S(capability, SR, 32, 0); - } else - /* - * Really old machine without stsi block for basic - * cpu information. Report 42.0 bogomips. - */ - capability = 42; - loops_per_jiffy = capability * (500000/HZ); - free_page((unsigned long) info); -} - -/* - * calibrate the delay loop - */ -void __cpuinit calibrate_delay(void) -{ - s390_adjust_jiffies(); - /* Print the good old Bogomips line .. */ - printk(KERN_DEBUG "Calibrating delay loop (skipped)... " - "%lu.%02lu BogoMIPS preset\n", loops_per_jiffy/(500000/HZ), - (loops_per_jiffy/(5000/HZ)) % 100); -} |