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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-20 22:29:52 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-20 22:29:52 +0200 |
commit | ad9471752ebae25daa133b4e5d9299809c35e155 (patch) | |
tree | dfcc75d7ee75ef0465c109423885c4326ccf9b9f /drivers/scsi/device_handler | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw (diff) | |
parent | [SCSI] qla2xxx: Refactor call to qla2xxx_read_sfp for thermal temperature. (diff) | |
download | linux-ad9471752ebae25daa133b4e5d9299809c35e155.tar.xz linux-ad9471752ebae25daa133b4e5d9299809c35e155.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (110 commits)
[SCSI] qla2xxx: Refactor call to qla2xxx_read_sfp for thermal temperature.
[SCSI] qla2xxx: Unify the read/write sfp mailbox command routines.
[SCSI] qla2xxx: Clear complete initialization control block.
[SCSI] qla2xxx: Allow an override of the registered maximum LUN.
[SCSI] qla2xxx: Add host number in reset and quiescent message logs.
[SCSI] qla2xxx: Correctly read sfp single byte mailbox register.
[SCSI] qla2xxx: Add qla82xx_rom_unlock() function.
[SCSI] qla2xxx: Log if qla82xx firmware fails to load from flash.
[SCSI] qla2xxx: Use passed in host to initialize local scsi_qla_host in queuecommand function
[SCSI] qla2xxx: Correct buffer start in edc sysfs debug print.
[SCSI] qla2xxx: Update firmware version after flash update for ISP82xx.
[SCSI] qla2xxx: Fix hang during driver unload when vport is active.
[SCSI] qla2xxx: Properly set the dsd_list_len for dsd_chaining in cmd type 6.
[SCSI] qla2xxx: Fix virtual port failing to login after chip reset.
[SCSI] qla2xxx: Fix vport delete hang when logins are outstanding.
[SCSI] hpsa: Change memset using sizeof(ptr) to sizeof(*ptr)
[SCSI] ipr: Rate limit DMA mapping errors
[SCSI] hpsa: add P2000 to list of shared SAS devices
[SCSI] hpsa: do not attempt PCI power management reset method if we know it won't work.
[SCSI] hpsa: remove superfluous sleeps around reset code
...
Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r-- | drivers/scsi/device_handler/scsi_dh_alua.c | 2 | ||||
-rw-r--r-- | drivers/scsi/device_handler/scsi_dh_rdac.c | 72 |
2 files changed, 56 insertions, 18 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 42fe52902add..6fec9fe5dc39 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -782,7 +782,7 @@ static int alua_bus_attach(struct scsi_device *sdev) h->sdev = sdev; err = alua_initialize(sdev, h); - if (err != SCSI_DH_OK) + if ((err != SCSI_DH_OK) && (err != SCSI_DH_DEV_OFFLINED)) goto failed; if (!try_module_get(THIS_MODULE)) diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 293c183dfe6d..e7fc70d6b478 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -182,14 +182,24 @@ struct rdac_dh_data { struct rdac_controller *ctlr; #define UNINITIALIZED_LUN (1 << 8) unsigned lun; + +#define RDAC_MODE 0 +#define RDAC_MODE_AVT 1 +#define RDAC_MODE_IOSHIP 2 + unsigned char mode; + #define RDAC_STATE_ACTIVE 0 #define RDAC_STATE_PASSIVE 1 unsigned char state; #define RDAC_LUN_UNOWNED 0 #define RDAC_LUN_OWNED 1 -#define RDAC_LUN_AVT 2 char lun_state; + +#define RDAC_PREFERRED 0 +#define RDAC_NON_PREFERRED 1 + char preferred; + unsigned char sense[SCSI_SENSE_BUFFERSIZE]; union { struct c2_inquiry c2; @@ -199,11 +209,15 @@ struct rdac_dh_data { } inq; }; +static const char *mode[] = { + "RDAC", + "AVT", + "IOSHIP", +}; static const char *lun_state[] = { "unowned", "owned", - "owned (AVT mode)", }; struct rdac_queue_data { @@ -458,25 +472,33 @@ static int check_ownership(struct scsi_device *sdev, struct rdac_dh_data *h) int err; struct c9_inquiry *inqp; - h->lun_state = RDAC_LUN_UNOWNED; h->state = RDAC_STATE_ACTIVE; err = submit_inquiry(sdev, 0xC9, sizeof(struct c9_inquiry), h); if (err == SCSI_DH_OK) { inqp = &h->inq.c9; - if ((inqp->avte_cvp >> 7) == 0x1) { - /* LUN in AVT mode */ - sdev_printk(KERN_NOTICE, sdev, - "%s: AVT mode detected\n", - RDAC_NAME); - h->lun_state = RDAC_LUN_AVT; - } else if ((inqp->avte_cvp & 0x1) != 0) { - /* LUN was owned by the controller */ + /* detect the operating mode */ + if ((inqp->avte_cvp >> 5) & 0x1) + h->mode = RDAC_MODE_IOSHIP; /* LUN in IOSHIP mode */ + else if (inqp->avte_cvp >> 7) + h->mode = RDAC_MODE_AVT; /* LUN in AVT mode */ + else + h->mode = RDAC_MODE; /* LUN in RDAC mode */ + + /* Update ownership */ + if (inqp->avte_cvp & 0x1) h->lun_state = RDAC_LUN_OWNED; + else { + h->lun_state = RDAC_LUN_UNOWNED; + if (h->mode == RDAC_MODE) + h->state = RDAC_STATE_PASSIVE; } - } - if (h->lun_state == RDAC_LUN_UNOWNED) - h->state = RDAC_STATE_PASSIVE; + /* Update path prio*/ + if (inqp->path_prio & 0x1) + h->preferred = RDAC_PREFERRED; + else + h->preferred = RDAC_NON_PREFERRED; + } return err; } @@ -648,12 +670,27 @@ static int rdac_activate(struct scsi_device *sdev, { struct rdac_dh_data *h = get_rdac_data(sdev); int err = SCSI_DH_OK; + int act = 0; err = check_ownership(sdev, h); if (err != SCSI_DH_OK) goto done; - if (h->lun_state == RDAC_LUN_UNOWNED) { + switch (h->mode) { + case RDAC_MODE: + if (h->lun_state == RDAC_LUN_UNOWNED) + act = 1; + break; + case RDAC_MODE_IOSHIP: + if ((h->lun_state == RDAC_LUN_UNOWNED) && + (h->preferred == RDAC_PREFERRED)) + act = 1; + break; + default: + break; + } + + if (act) { err = queue_mode_select(sdev, fn, data); if (err == SCSI_DH_OK) return 0; @@ -836,8 +873,9 @@ static int rdac_bus_attach(struct scsi_device *sdev) spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); sdev_printk(KERN_NOTICE, sdev, - "%s: LUN %d (%s)\n", - RDAC_NAME, h->lun, lun_state[(int)h->lun_state]); + "%s: LUN %d (%s) (%s)\n", + RDAC_NAME, h->lun, mode[(int)h->mode], + lun_state[(int)h->lun_state]); return 0; |