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-rw-r--r--drivers/s390/char/Kconfig69
-rw-r--r--drivers/s390/char/con3215.c2
-rw-r--r--drivers/s390/char/fs3270.c1
-rw-r--r--drivers/s390/char/raw3270.c2
-rw-r--r--drivers/s390/char/sclp.c18
-rw-r--r--drivers/s390/char/sclp_config.c1
-rw-r--r--drivers/s390/char/tape_3590.c18
-rw-r--r--drivers/s390/char/tape_block.c2
-rw-r--r--drivers/s390/char/tape_char.c1
-rw-r--r--drivers/s390/char/tape_class.h1
-rw-r--r--drivers/s390/char/tape_core.c70
-rw-r--r--drivers/s390/char/vmlogrdr.c37
-rw-r--r--drivers/s390/char/vmur.c3
13 files changed, 157 insertions, 68 deletions
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
index 40834f18754c..dcee3c5c8954 100644
--- a/drivers/s390/char/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -2,76 +2,85 @@ comment "S/390 character device drivers"
depends on S390
config TN3270
- tristate "Support for locally attached 3270 terminals"
+ def_tristate y
+ prompt "Support for locally attached 3270 terminals"
depends on CCW
help
Include support for IBM 3270 terminals.
config TN3270_TTY
- tristate "Support for tty input/output on 3270 terminals"
+ def_tristate y
+ prompt "Support for tty input/output on 3270 terminals"
depends on TN3270
help
Include support for using an IBM 3270 terminal as a Linux tty.
config TN3270_FS
- tristate "Support for fullscreen applications on 3270 terminals"
+ def_tristate m
+ prompt "Support for fullscreen applications on 3270 terminals"
depends on TN3270
help
Include support for fullscreen applications on an IBM 3270 terminal.
config TN3270_CONSOLE
- bool "Support for console on 3270 terminal"
+ def_bool y
+ prompt "Support for console on 3270 terminal"
depends on TN3270=y && TN3270_TTY=y
help
Include support for using an IBM 3270 terminal as a Linux system
console. Available only if 3270 support is compiled in statically.
config TN3215
- bool "Support for 3215 line mode terminal"
+ def_bool y
+ prompt "Support for 3215 line mode terminal"
depends on CCW
help
Include support for IBM 3215 line-mode terminals.
config TN3215_CONSOLE
- bool "Support for console on 3215 line mode terminal"
+ def_bool y
+ prompt "Support for console on 3215 line mode terminal"
depends on TN3215
help
Include support for using an IBM 3215 line-mode terminal as a
Linux system console.
config CCW_CONSOLE
- bool
- depends on TN3215_CONSOLE || TN3270_CONSOLE
- default y
+ def_bool y if TN3215_CONSOLE || TN3270_CONSOLE
config SCLP_TTY
- bool "Support for SCLP line mode terminal"
+ def_bool y
+ prompt "Support for SCLP line mode terminal"
depends on S390
help
Include support for IBM SCLP line-mode terminals.
config SCLP_CONSOLE
- bool "Support for console on SCLP line mode terminal"
+ def_bool y
+ prompt "Support for console on SCLP line mode terminal"
depends on SCLP_TTY
help
Include support for using an IBM HWC line-mode terminal as the Linux
system console.
config SCLP_VT220_TTY
- bool "Support for SCLP VT220-compatible terminal"
+ def_bool y
+ prompt "Support for SCLP VT220-compatible terminal"
depends on S390
help
Include support for an IBM SCLP VT220-compatible terminal.
config SCLP_VT220_CONSOLE
- bool "Support for console on SCLP VT220-compatible terminal"
+ def_bool y
+ prompt "Support for console on SCLP VT220-compatible terminal"
depends on SCLP_VT220_TTY
help
Include support for using an IBM SCLP VT220-compatible terminal as a
Linux system console.
config SCLP_CPI
- tristate "Control-Program Identification"
+ def_tristate m
+ prompt "Control-Program Identification"
depends on S390
help
This option enables the hardware console interface for system
@@ -83,7 +92,8 @@ config SCLP_CPI
need this feature and intend to run your kernel in LPAR.
config SCLP_ASYNC
- tristate "Support for Call Home via Asynchronous SCLP Records"
+ def_tristate m
+ prompt "Support for Call Home via Asynchronous SCLP Records"
depends on S390
help
This option enables the call home function, which is able to inform
@@ -93,7 +103,8 @@ config SCLP_ASYNC
need this feature and intend to run your kernel in LPAR.
config S390_TAPE
- tristate "S/390 tape device support"
+ def_tristate m
+ prompt "S/390 tape device support"
depends on CCW
help
Select this option if you want to access channel-attached tape
@@ -109,7 +120,8 @@ comment "S/390 tape interface support"
depends on S390_TAPE
config S390_TAPE_BLOCK
- bool "Support for tape block devices"
+ def_bool y
+ prompt "Support for tape block devices"
depends on S390_TAPE && BLOCK
help
Select this option if you want to access your channel-attached tape
@@ -123,7 +135,8 @@ comment "S/390 tape hardware support"
depends on S390_TAPE
config S390_TAPE_34XX
- tristate "Support for 3480/3490 tape hardware"
+ def_tristate m
+ prompt "Support for 3480/3490 tape hardware"
depends on S390_TAPE
help
Select this option if you want to access IBM 3480/3490 magnetic
@@ -131,7 +144,8 @@ config S390_TAPE_34XX
It is safe to say "Y" here.
config S390_TAPE_3590
- tristate "Support for 3590 tape hardware"
+ def_tristate m
+ prompt "Support for 3590 tape hardware"
depends on S390_TAPE
help
Select this option if you want to access IBM 3590 magnetic
@@ -139,7 +153,8 @@ config S390_TAPE_3590
It is safe to say "Y" here.
config VMLOGRDR
- tristate "Support for the z/VM recording system services (VM only)"
+ def_tristate m
+ prompt "Support for the z/VM recording system services (VM only)"
depends on IUCV
help
Select this option if you want to be able to receive records collected
@@ -148,29 +163,31 @@ config VMLOGRDR
This driver depends on the IUCV support driver.
config VMCP
- bool "Support for the z/VM CP interface"
+ def_bool y
+ prompt "Support for the z/VM CP interface"
depends on S390
help
Select this option if you want to be able to interact with the control
program on z/VM
config MONREADER
- tristate "API for reading z/VM monitor service records"
+ def_tristate m
+ prompt "API for reading z/VM monitor service records"
depends on IUCV
help
Character device driver for reading z/VM monitor service records
config MONWRITER
- tristate "API for writing z/VM monitor service records"
+ def_tristate m
+ prompt "API for writing z/VM monitor service records"
depends on S390
- default "m"
help
Character device driver for writing z/VM monitor service records
config S390_VMUR
- tristate "z/VM unit record device driver"
+ def_tristate m
+ prompt "z/VM unit record device driver"
depends on S390
- default "m"
help
Character device driver for z/VM reader, puncher and printer.
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 59ec073724bf..3fb4335d491d 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -9,6 +9,7 @@
* Dan Morrison, IBM Corporation <dmorriso@cse.buffalo.edu>
*/
+#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kdev_t.h>
@@ -361,6 +362,7 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
int cstat, dstat;
int count;
+ kstat_cpu(smp_processor_id()).irqs[IOINT_C15]++;
raw = dev_get_drvdata(&cdev->dev);
req = (struct raw3215_req *) intparm;
cstat = irb->scsw.cmd.cstat;
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index eb28fb01a38a..f6489eb7e976 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -14,7 +14,6 @@
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/smp_lock.h>
#include <asm/compat.h>
#include <asm/ccwdev.h>
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 2a4c566456e7..96ba2fd1c8ad 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -7,6 +7,7 @@
* Copyright IBM Corp. 2003, 2009
*/
+#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -329,6 +330,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
struct raw3270_request *rq;
int rc;
+ kstat_cpu(smp_processor_id()).irqs[IOINT_C70]++;
rp = dev_get_drvdata(&cdev->dev);
if (!rp)
return;
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 35cc4686b99b..b76c61f82485 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -7,6 +7,7 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
+#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/spinlock.h>
@@ -18,16 +19,14 @@
#include <linux/suspend.h>
#include <linux/completion.h>
#include <linux/platform_device.h>
-#include <asm/types.h>
#include <asm/s390_ext.h>
+#include <asm/types.h>
+#include <asm/irq.h>
#include "sclp.h"
#define SCLP_HEADER "sclp: "
-/* Structure for register_early_external_interrupt. */
-static ext_int_info_t ext_int_info_hwc;
-
/* Lock to protect internal data consistency. */
static DEFINE_SPINLOCK(sclp_lock);
@@ -402,6 +401,7 @@ static void sclp_interrupt_handler(unsigned int ext_int_code,
u32 finished_sccb;
u32 evbuf_pending;
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++;
spin_lock(&sclp_lock);
finished_sccb = param32 & 0xfffffff8;
evbuf_pending = param32 & 0x3;
@@ -824,6 +824,7 @@ static void sclp_check_handler(unsigned int ext_int_code,
{
u32 finished_sccb;
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++;
finished_sccb = param32 & 0xfffffff8;
/* Is this the interrupt we are waiting for? */
if (finished_sccb == 0)
@@ -866,8 +867,7 @@ sclp_check_interface(void)
spin_lock_irqsave(&sclp_lock, flags);
/* Prepare init mask command */
- rc = register_early_external_interrupt(0x2401, sclp_check_handler,
- &ext_int_info_hwc);
+ rc = register_external_interrupt(0x2401, sclp_check_handler);
if (rc) {
spin_unlock_irqrestore(&sclp_lock, flags);
return rc;
@@ -900,8 +900,7 @@ sclp_check_interface(void)
} else
rc = -EBUSY;
}
- unregister_early_external_interrupt(0x2401, sclp_check_handler,
- &ext_int_info_hwc);
+ unregister_external_interrupt(0x2401, sclp_check_handler);
spin_unlock_irqrestore(&sclp_lock, flags);
return rc;
}
@@ -1064,8 +1063,7 @@ sclp_init(void)
if (rc)
goto fail_init_state_uninitialized;
/* Register interrupt handler */
- rc = register_early_external_interrupt(0x2401, sclp_interrupt_handler,
- &ext_int_info_hwc);
+ rc = register_external_interrupt(0x2401, sclp_interrupt_handler);
if (rc)
goto fail_unregister_reboot_notifier;
sclp_init_state = sclp_init_state_initialized;
diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index b497afe061cc..16e232a99fb7 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -33,6 +33,7 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
int cpu;
struct sys_device *sysdev;
+ s390_adjust_jiffies();
pr_warning("cpu capability changed.\n");
get_online_cpus();
for_each_online_cpu(cpu) {
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index deff2c3361e4..fbe361fcd2c0 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -24,6 +24,8 @@
#include "tape_std.h"
#include "tape_3590.h"
+static struct workqueue_struct *tape_3590_wq;
+
/*
* Pointer to debug area.
*/
@@ -613,7 +615,7 @@ tape_3590_schedule_work(struct tape_device *device, enum tape_op op)
p->device = tape_get_device(device);
p->op = op;
- schedule_work(&p->work);
+ queue_work(tape_3590_wq, &p->work);
return 0;
}
@@ -1629,7 +1631,7 @@ fail_kmalloc:
static void
tape_3590_cleanup_device(struct tape_device *device)
{
- flush_scheduled_work();
+ flush_workqueue(tape_3590_wq);
tape_std_unassign(device);
kfree(device->discdata);
@@ -1733,11 +1735,17 @@ tape_3590_init(void)
#endif
DBF_EVENT(3, "3590 init\n");
+
+ tape_3590_wq = alloc_workqueue("tape_3590", 0, 0);
+ if (!tape_3590_wq)
+ return -ENOMEM;
+
/* Register driver for 3590 tapes. */
rc = ccw_driver_register(&tape_3590_driver);
- if (rc)
+ if (rc) {
+ destroy_workqueue(tape_3590_wq);
DBF_EVENT(3, "3590 init failed\n");
- else
+ } else
DBF_EVENT(3, "3590 registered\n");
return rc;
}
@@ -1746,7 +1754,7 @@ static void
tape_3590_exit(void)
{
ccw_driver_unregister(&tape_3590_driver);
-
+ destroy_workqueue(tape_3590_wq);
debug_unregister(TAPE_DBF_AREA);
}
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index f0fa9ca5cb2c..55d2d0f4eabc 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -264,7 +264,7 @@ cleanup_queue:
void
tapeblock_cleanup_device(struct tape_device *device)
{
- flush_scheduled_work();
+ flush_work_sync(&device->blk_data.requeue_task);
tape_put_device(device);
if (!device->blk_data.disk) {
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 883e2db02bd3..e090a307fdee 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -17,7 +17,6 @@
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/mtio.h>
-#include <linux/smp_lock.h>
#include <linux/compat.h>
#include <asm/uaccess.h>
diff --git a/drivers/s390/char/tape_class.h b/drivers/s390/char/tape_class.h
index 707b7f48c232..9e32780c317f 100644
--- a/drivers/s390/char/tape_class.h
+++ b/drivers/s390/char/tape_class.h
@@ -14,7 +14,6 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/major.h>
-#include <linux/kobject.h>
#include <linux/kobj_map.h>
#include <linux/cdev.h>
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 6c408670e08d..7978a0adeaf3 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -14,6 +14,7 @@
#define KMSG_COMPONENT "tape"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/init.h> // for kernel parameters
#include <linux/kmod.h> // for requesting modules
@@ -209,29 +210,79 @@ tape_state_set(struct tape_device *device, enum tape_state newstate)
wake_up(&device->state_change_wq);
}
+struct tape_med_state_work_data {
+ struct tape_device *device;
+ enum tape_medium_state state;
+ struct work_struct work;
+};
+
+static void
+tape_med_state_work_handler(struct work_struct *work)
+{
+ static char env_state_loaded[] = "MEDIUM_STATE=LOADED";
+ static char env_state_unloaded[] = "MEDIUM_STATE=UNLOADED";
+ struct tape_med_state_work_data *p =
+ container_of(work, struct tape_med_state_work_data, work);
+ struct tape_device *device = p->device;
+ char *envp[] = { NULL, NULL };
+
+ switch (p->state) {
+ case MS_UNLOADED:
+ pr_info("%s: The tape cartridge has been successfully "
+ "unloaded\n", dev_name(&device->cdev->dev));
+ envp[0] = env_state_unloaded;
+ kobject_uevent_env(&device->cdev->dev.kobj, KOBJ_CHANGE, envp);
+ break;
+ case MS_LOADED:
+ pr_info("%s: A tape cartridge has been mounted\n",
+ dev_name(&device->cdev->dev));
+ envp[0] = env_state_loaded;
+ kobject_uevent_env(&device->cdev->dev.kobj, KOBJ_CHANGE, envp);
+ break;
+ default:
+ break;
+ }
+ tape_put_device(device);
+ kfree(p);
+}
+
+static void
+tape_med_state_work(struct tape_device *device, enum tape_medium_state state)
+{
+ struct tape_med_state_work_data *p;
+
+ p = kzalloc(sizeof(*p), GFP_ATOMIC);
+ if (p) {
+ INIT_WORK(&p->work, tape_med_state_work_handler);
+ p->device = tape_get_device(device);
+ p->state = state;
+ schedule_work(&p->work);
+ }
+}
+
void
tape_med_state_set(struct tape_device *device, enum tape_medium_state newstate)
{
- if (device->medium_state == newstate)
+ enum tape_medium_state oldstate;
+
+ oldstate = device->medium_state;
+ if (oldstate == newstate)
return;
+ device->medium_state = newstate;
switch(newstate){
case MS_UNLOADED:
device->tape_generic_status |= GMT_DR_OPEN(~0);
- if (device->medium_state == MS_LOADED)
- pr_info("%s: The tape cartridge has been successfully "
- "unloaded\n", dev_name(&device->cdev->dev));
+ if (oldstate == MS_LOADED)
+ tape_med_state_work(device, MS_UNLOADED);
break;
case MS_LOADED:
device->tape_generic_status &= ~GMT_DR_OPEN(~0);
- if (device->medium_state == MS_UNLOADED)
- pr_info("%s: A tape cartridge has been mounted\n",
- dev_name(&device->cdev->dev));
+ if (oldstate == MS_UNLOADED)
+ tape_med_state_work(device, MS_LOADED);
break;
default:
- // print nothing
break;
}
- device->medium_state = newstate;
wake_up(&device->state_change_wq);
}
@@ -1064,6 +1115,7 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
struct tape_request *request;
int rc;
+ kstat_cpu(smp_processor_id()).irqs[IOINT_TAP]++;
device = dev_get_drvdata(&cdev->dev);
if (device == NULL) {
return;
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index 9f661426e4a1..c837d7419a6a 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -30,7 +30,6 @@
#include <linux/kmod.h>
#include <linux/cdev.h>
#include <linux/device.h>
-#include <linux/smp_lock.h>
#include <linux/string.h>
MODULE_AUTHOR
@@ -249,27 +248,25 @@ static int vmlogrdr_recording(struct vmlogrdr_priv_t * logptr,
char cp_command[80];
char cp_response[160];
char *onoff, *qid_string;
+ int rc;
- memset(cp_command, 0x00, sizeof(cp_command));
- memset(cp_response, 0x00, sizeof(cp_response));
-
- onoff = ((action == 1) ? "ON" : "OFF");
+ onoff = ((action == 1) ? "ON" : "OFF");
qid_string = ((recording_class_AB == 1) ? " QID * " : "");
- /*
+ /*
* The recording commands needs to be called with option QID
* for guests that have previlege classes A or B.
* Purging has to be done as separate step, because recording
* can't be switched on as long as records are on the queue.
* Doing both at the same time doesn't work.
*/
-
- if (purge) {
+ if (purge && (action == 1)) {
+ memset(cp_command, 0x00, sizeof(cp_command));
+ memset(cp_response, 0x00, sizeof(cp_response));
snprintf(cp_command, sizeof(cp_command),
"RECORDING %s PURGE %s",
logptr->recording_name,
qid_string);
-
cpcmd(cp_command, cp_response, sizeof(cp_response), NULL);
}
@@ -279,19 +276,33 @@ static int vmlogrdr_recording(struct vmlogrdr_priv_t * logptr,
logptr->recording_name,
onoff,
qid_string);
-
cpcmd(cp_command, cp_response, sizeof(cp_response), NULL);
/* The recording command will usually answer with 'Command complete'
* on success, but when the specific service was never connected
* before then there might be an additional informational message
* 'HCPCRC8072I Recording entry not found' before the
- * 'Command complete'. So I use strstr rather then the strncmp.
+ * 'Command complete'. So I use strstr rather then the strncmp.
*/
if (strstr(cp_response,"Command complete"))
- return 0;
+ rc = 0;
else
- return -EIO;
+ rc = -EIO;
+ /*
+ * If we turn recording off, we have to purge any remaining records
+ * afterwards, as a large number of queued records may impact z/VM
+ * performance.
+ */
+ if (purge && (action == 0)) {
+ memset(cp_command, 0x00, sizeof(cp_command));
+ memset(cp_response, 0x00, sizeof(cp_response));
+ snprintf(cp_command, sizeof(cp_command),
+ "RECORDING %s PURGE %s",
+ logptr->recording_name,
+ qid_string);
+ cpcmd(cp_command, cp_response, sizeof(cp_response), NULL);
+ }
+ return rc;
}
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 1de672f21037..caef1757341d 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -11,9 +11,9 @@
#define KMSG_COMPONENT "vmur"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/kernel_stat.h>
#include <linux/cdev.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/cio.h>
@@ -303,6 +303,7 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm,
{
struct urdev *urd;
+ kstat_cpu(smp_processor_id()).irqs[IOINT_VMR]++;
TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n",
intparm, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
irb->scsw.cmd.count);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-03 16:14:01 +0100