#include "ioasm.h"
#include "chp.h"
+static int timeout_log_enabled;
+
int
device_is_online(struct subchannel *sch)
{
struct ccw_device *cdev;
- if (!sch->dev.driver_data)
+ cdev = sch_get_cdev(sch);
+ if (!cdev)
return 0;
- cdev = sch->dev.driver_data;
return (cdev->private->state == DEV_STATE_ONLINE);
}
{
struct ccw_device *cdev;
- if (!sch->dev.driver_data)
+ cdev = sch_get_cdev(sch);
+ if (!cdev)
return 0;
- cdev = sch->dev.driver_data;
return (cdev->private->state == DEV_STATE_DISCONNECTED ||
cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID);
}
{
struct ccw_device *cdev;
- if (!sch->dev.driver_data)
+ cdev = sch_get_cdev(sch);
+ if (!cdev)
return;
- cdev = sch->dev.driver_data;
ccw_device_set_timeout(cdev, 0);
cdev->private->flags.fake_irb = 0;
cdev->private->state = DEV_STATE_DISCONNECTED;
+ if (cdev->online)
+ ccw_device_schedule_recovery();
}
void device_set_intretry(struct subchannel *sch)
{
struct ccw_device *cdev;
- cdev = sch->dev.driver_data;
+ cdev = sch_get_cdev(sch);
if (!cdev)
return;
cdev->private->flags.intretry = 1;
{
struct ccw_device *cdev;
- cdev = sch->dev.driver_data;
+ cdev = sch_get_cdev(sch);
if (!cdev || !cdev->online)
return -EINVAL;
dev_fsm_event(cdev, DEV_EVENT_VERIFY);
return 0;
}
+static int __init ccw_timeout_log_setup(char *unused)
+{
+ timeout_log_enabled = 1;
+ return 1;
+}
+
+__setup("ccw_timeout_log", ccw_timeout_log_setup);
+
+static void ccw_timeout_log(struct ccw_device *cdev)
+{
+ struct schib schib;
+ struct subchannel *sch;
+ struct io_subchannel_private *private;
+ int cc;
+
+ sch = to_subchannel(cdev->dev.parent);
+ private = to_io_private(sch);
+ cc = stsch(sch->schid, &schib);
+
+ printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
+ "device information:\n", get_clock());
+ printk(KERN_WARNING "cio: orb:\n");
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
+ &private->orb, sizeof(private->orb), 0);
+ printk(KERN_WARNING "cio: ccw device bus id: %s\n", cdev->dev.bus_id);
+ printk(KERN_WARNING "cio: subchannel bus id: %s\n", sch->dev.bus_id);
+ printk(KERN_WARNING "cio: subchannel lpm: %02x, opm: %02x, "
+ "vpm: %02x\n", sch->lpm, sch->opm, sch->vpm);
+
+ if ((void *)(addr_t)private->orb.cpa == &private->sense_ccw ||
+ (void *)(addr_t)private->orb.cpa == cdev->private->iccws)
+ printk(KERN_WARNING "cio: last channel program (intern):\n");
+ else
+ printk(KERN_WARNING "cio: last channel program:\n");
+
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
+ (void *)(addr_t)private->orb.cpa,
+ sizeof(struct ccw1), 0);
+ printk(KERN_WARNING "cio: ccw device state: %d\n",
+ cdev->private->state);
+ printk(KERN_WARNING "cio: store subchannel returned: cc=%d\n", cc);
+ printk(KERN_WARNING "cio: schib:\n");
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
+ &schib, sizeof(schib), 0);
+ printk(KERN_WARNING "cio: ccw device flags:\n");
+ print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
+ &cdev->private->flags, sizeof(cdev->private->flags), 0);
+}
+
/*
* Timeout function. It just triggers a DEV_EVENT_TIMEOUT.
*/
cdev = (struct ccw_device *) data;
spin_lock_irq(cdev->ccwlock);
+ if (timeout_log_enabled)
+ ccw_timeout_log(cdev);
dev_fsm_event(cdev, DEV_EVENT_TIMEOUT);
spin_unlock_irq(cdev->ccwlock);
}
{
struct ccw_device *cdev;
- if (!sch->dev.driver_data)
+ cdev = sch_get_cdev(sch);
+ if (!cdev)
return;
- cdev = sch->dev.driver_data;
ccw_device_set_timeout(cdev, 0);
}
switch (state) {
case DEV_STATE_NOT_OPER:
CIO_DEBUG(KERN_WARNING, 2,
- "cio: SenseID : unknown device %04x on subchannel "
+ "SenseID : unknown device %04x on subchannel "
"0.%x.%04x\n", cdev->private->dev_id.devno,
sch->schid.ssid, sch->schid.sch_no);
break;
}
/* Issue device info message. */
CIO_DEBUG(KERN_INFO, 2,
- "cio: SenseID : device 0.%x.%04x reports: "
+ "SenseID : device 0.%x.%04x reports: "
"CU Type/Mod = %04X/%02X, Dev Type/Mod = "
"%04X/%02X\n",
cdev->private->dev_id.ssid,
break;
case DEV_STATE_BOXED:
CIO_DEBUG(KERN_WARNING, 2,
- "cio: SenseID : boxed device %04x on subchannel "
+ "SenseID : boxed device %04x on subchannel "
"0.%x.%04x\n", cdev->private->dev_id.devno,
sch->schid.ssid, sch->schid.sch_no);
break;
sch = to_subchannel(cdev->dev.parent);
if (sch->driver && sch->driver->notify) {
spin_unlock_irqrestore(cdev->ccwlock, flags);
- ret = sch->driver->notify(&sch->dev, CIO_OPER);
+ ret = sch->driver->notify(sch, CIO_OPER);
spin_lock_irqsave(cdev->ccwlock, flags);
} else
ret = 0;
if (state == DEV_STATE_BOXED)
CIO_DEBUG(KERN_WARNING, 2,
- "cio: Boxed device %04x on subchannel %04x\n",
+ "Boxed device %04x on subchannel %04x\n",
cdev->private->dev_id.devno, sch->schid.sch_no);
if (cdev->private->flags.donotify) {
if (cdev->private->pgid[last].inf.ps.state1 ==
SNID_STATE1_RESET)
/* No previous pgid found */
- memcpy(&cdev->private->pgid[0], &css[0]->global_pgid,
+ memcpy(&cdev->private->pgid[0],
+ &channel_subsystems[0]->global_pgid,
sizeof(struct pgid));
else
/* Use existing pgid */
(cdev->private->state != DEV_STATE_BOXED))
return -EINVAL;
sch = to_subchannel(cdev->dev.parent);
- ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc);
+ ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc,
+ (u32)(addr_t)sch);
if (ret != 0)
/* Couldn't enable the subchannel for i/o. Sick device. */
return ret;
}
-static void
-ccw_device_nopath_notify(struct work_struct *work)
-{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
- struct subchannel *sch;
- int ret;
- unsigned long flags;
-
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
- spin_lock_irqsave(cdev->ccwlock, flags);
- sch = to_subchannel(cdev->dev.parent);
- /* Extra sanity. */
- if (sch->lpm)
- goto out_unlock;
- if (sch->driver && sch->driver->notify) {
- spin_unlock_irqrestore(cdev->ccwlock, flags);
- ret = sch->driver->notify(&sch->dev, CIO_NO_PATH);
- spin_lock_irqsave(cdev->ccwlock, flags);
- } else
- ret = 0;
- if (!ret) {
- if (get_device(&sch->dev)) {
- /* Driver doesn't want to keep device. */
- cio_disable_subchannel(sch);
- if (get_device(&cdev->dev)) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(ccw_device_work,
- &cdev->private->kick_work);
- } else
- put_device(&sch->dev);
- }
- } else {
- cio_disable_subchannel(sch);
- ccw_device_set_timeout(cdev, 0);
- cdev->private->flags.fake_irb = 0;
- cdev->private->state = DEV_STATE_DISCONNECTED;
- wake_up(&cdev->private->wait_q);
- }
-out_unlock:
- spin_unlock_irqrestore(cdev->ccwlock, flags);
-}
-
void
ccw_device_verify_done(struct ccw_device *cdev, int err)
{
/* Reset oper notify indication after verify error. */
cdev->private->flags.donotify = 0;
if (cdev->online) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_nopath_notify);
- queue_work(ccw_device_notify_work,
- &cdev->private->kick_work);
+ ccw_device_set_timeout(cdev, 0);
+ dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
} else
ccw_device_done(cdev, DEV_STATE_NOT_OPER);
break;
sch = to_subchannel(cdev->dev.parent);
if (css_init_done && !get_device(&cdev->dev))
return -ENODEV;
- ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc);
+ ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc,
+ (u32)(addr_t)sch);
if (ret != 0) {
/* Couldn't enable the subchannel for i/o. Sick device. */
if (ret == -ENODEV)
break;
default:
cdev->private->flags.donotify = 0;
- if (get_device(&cdev->dev)) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(ccw_device_work, &cdev->private->kick_work);
- }
+ dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
ccw_device_done(cdev, DEV_STATE_NOT_OPER);
break;
}
}
/*
- * Handle not operational event while offline.
+ * Handle not operational event in non-special state.
*/
-static void
-ccw_device_offline_notoper(struct ccw_device *cdev, enum dev_event dev_event)
+static void ccw_device_generic_notoper(struct ccw_device *cdev,
+ enum dev_event dev_event)
{
struct subchannel *sch;
cdev->private->state = DEV_STATE_NOT_OPER;
sch = to_subchannel(cdev->dev.parent);
- if (get_device(&cdev->dev)) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(ccw_device_work, &cdev->private->kick_work);
- }
- wake_up(&cdev->private->wait_q);
-}
-
-/*
- * Handle not operational event while online.
- */
-static void
-ccw_device_online_notoper(struct ccw_device *cdev, enum dev_event dev_event)
-{
- struct subchannel *sch;
- int ret;
-
- sch = to_subchannel(cdev->dev.parent);
- if (sch->driver->notify) {
- spin_unlock_irq(cdev->ccwlock);
- ret = sch->driver->notify(&sch->dev,
- sch->lpm ? CIO_GONE : CIO_NO_PATH);
- spin_lock_irq(cdev->ccwlock);
- } else
- ret = 0;
- if (ret) {
- ccw_device_set_timeout(cdev, 0);
- cdev->private->flags.fake_irb = 0;
- cdev->private->state = DEV_STATE_DISCONNECTED;
- wake_up(&cdev->private->wait_q);
- return;
- }
- cdev->private->state = DEV_STATE_NOT_OPER;
- cio_disable_subchannel(sch);
- if (sch->schib.scsw.actl != 0) {
- // FIXME: not-oper indication to device driver ?
- ccw_device_call_handler(cdev);
- }
- if (get_device(&cdev->dev)) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_call_sch_unregister);
- queue_work(ccw_device_work, &cdev->private->kick_work);
- }
- wake_up(&cdev->private->wait_q);
+ css_schedule_eval(sch->schid);
}
/*
cdev->private->state = DEV_STATE_TIMEOUT_KILL;
return;
}
- if (ret == -ENODEV) {
- struct subchannel *sch;
-
- sch = to_subchannel(cdev->dev.parent);
- if (!sch->lpm) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_nopath_notify);
- queue_work(ccw_device_notify_work,
- &cdev->private->kick_work);
- } else
- dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
- } else if (cdev->handler)
+ if (ret == -ENODEV)
+ dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
+ else if (cdev->handler)
cdev->handler(cdev, cdev->private->intparm,
ERR_PTR(-ETIMEDOUT));
}
int ret;
struct ccw_device *cdev;
- cdev = sch->dev.driver_data;
+ cdev = sch_get_cdev(sch);
ret = ccw_device_cancel_halt_clear(cdev);
if (ret == -EBUSY) {
ccw_device_set_timeout(cdev, 3*HZ);
struct subchannel *sch;
sch = to_subchannel(cdev->dev.parent);
- if (cio_enable_subchannel(sch, sch->schib.pmcw.isc) != 0)
+ if (cio_enable_subchannel(sch, sch->schib.pmcw.isc,
+ (u32)(addr_t)sch) != 0)
/* Couldn't enable the subchannel for i/o. Sick device. */
return;
{
struct ccw_device *cdev;
- if (!sch->dev.driver_data)
+ cdev = sch_get_cdev(sch);
+ if (!cdev)
return;
- cdev = sch->dev.driver_data;
if (cdev->private->state != DEV_STATE_DISCONNECTED)
return;
sch->schib.pmcw.ena = 0;
if ((sch->lpm & (sch->lpm - 1)) != 0)
sch->schib.pmcw.mp = 1;
- sch->schib.pmcw.intparm = (__u32)(unsigned long)sch;
+ sch->schib.pmcw.intparm = (u32)(addr_t)sch;
/* We should also udate ssd info, but this has to wait. */
/* Check if this is another device which appeared on the same sch. */
if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
PREPARE_WORK(&cdev->private->kick_work,
ccw_device_move_to_orphanage);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ queue_work(slow_path_wq, &cdev->private->kick_work);
} else
ccw_device_start_id(cdev, 0);
}
[DEV_EVENT_VERIFY] = ccw_device_nop,
},
[DEV_STATE_SENSE_PGID] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_sense_pgid_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_onoff_timeout,
[DEV_EVENT_VERIFY] = ccw_device_nop,
[DEV_EVENT_VERIFY] = ccw_device_nop,
},
[DEV_STATE_OFFLINE] = {
- [DEV_EVENT_NOTOPER] = ccw_device_offline_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_offline_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_nop,
[DEV_EVENT_VERIFY] = ccw_device_nop,
},
[DEV_STATE_VERIFY] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_verify_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_onoff_timeout,
[DEV_EVENT_VERIFY] = ccw_device_delay_verify,
},
[DEV_STATE_ONLINE] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_online_timeout,
[DEV_EVENT_VERIFY] = ccw_device_online_verify,
},
[DEV_STATE_W4SENSE] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_w4sense,
[DEV_EVENT_TIMEOUT] = ccw_device_nop,
[DEV_EVENT_VERIFY] = ccw_device_online_verify,
},
[DEV_STATE_DISBAND_PGID] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_disband_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_onoff_timeout,
[DEV_EVENT_VERIFY] = ccw_device_nop,
},
[DEV_STATE_BOXED] = {
- [DEV_EVENT_NOTOPER] = ccw_device_offline_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_stlck_done,
[DEV_EVENT_TIMEOUT] = ccw_device_stlck_done,
[DEV_EVENT_VERIFY] = ccw_device_nop,
},
/* states to wait for i/o completion before doing something */
[DEV_STATE_CLEAR_VERIFY] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_clear_verify,
[DEV_EVENT_TIMEOUT] = ccw_device_nop,
[DEV_EVENT_VERIFY] = ccw_device_nop,
},
[DEV_STATE_TIMEOUT_KILL] = {
- [DEV_EVENT_NOTOPER] = ccw_device_online_notoper,
+ [DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_killing_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_killing_timeout,
[DEV_EVENT_VERIFY] = ccw_device_nop, //FIXME
},
};
-/*
- * io_subchannel_irq is called for "real" interrupts or for status
- * pending conditions on msch.
- */
-void
-io_subchannel_irq (struct device *pdev)
-{
- struct ccw_device *cdev;
-
- cdev = to_subchannel(pdev)->dev.driver_data;
-
- CIO_TRACE_EVENT (3, "IRQ");
- CIO_TRACE_EVENT (3, pdev->bus_id);
- if (cdev)
- dev_fsm_event(cdev, DEV_EVENT_INTERRUPT);
-}
-
EXPORT_SYMBOL_GPL(ccw_device_set_timeout);
git.openpandora.org / pandora-kernel.git / blobdiff