Commit e6a4202a authored by Shyam Sundar's avatar Shyam Sundar Committed by James Bottomley

[SCSI] qla2xxx: ROM lock recovery if fw hangs while holding the lock.

Signed-off-by: default avatarGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 6de76cfc
...@@ -3152,6 +3152,20 @@ qla82xx_start_iocbs(srb_t *sp) ...@@ -3152,6 +3152,20 @@ qla82xx_start_iocbs(srb_t *sp)
} }
} }
void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
{
if (qla82xx_rom_lock(ha))
/* Someone else is holding the lock. */
qla_printk(KERN_INFO, ha, "Resetting rom_lock\n");
/*
* Either we got the lock, or someone
* else died while holding it.
* In either case, unlock.
*/
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
}
/* /*
* qla82xx_device_bootstrap * qla82xx_device_bootstrap
* Initialize device, set DEV_READY, start fw * Initialize device, set DEV_READY, start fw
...@@ -3166,12 +3180,13 @@ qla82xx_start_iocbs(srb_t *sp) ...@@ -3166,12 +3180,13 @@ qla82xx_start_iocbs(srb_t *sp)
static int static int
qla82xx_device_bootstrap(scsi_qla_host_t *vha) qla82xx_device_bootstrap(scsi_qla_host_t *vha)
{ {
int rval, i, timeout; int rval = QLA_SUCCESS;
int i, timeout;
uint32_t old_count, count; uint32_t old_count, count;
struct qla_hw_data *ha = vha->hw; struct qla_hw_data *ha = vha->hw;
int need_reset = 0, peg_stuck = 1;
if (qla82xx_need_reset(ha)) need_reset = qla82xx_need_reset(ha);
goto dev_initialize;
old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
...@@ -3185,9 +3200,27 @@ qla82xx_device_bootstrap(scsi_qla_host_t *vha) ...@@ -3185,9 +3200,27 @@ qla82xx_device_bootstrap(scsi_qla_host_t *vha)
count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
if (count != old_count) if (count != old_count)
peg_stuck = 0;
}
if (need_reset) {
/* We are trying to perform a recovery here. */
if (peg_stuck)
qla82xx_rom_lock_recovery(ha);
goto dev_initialize;
} else {
/* Start of day for this ha context. */
if (peg_stuck) {
/* Either we are the first or recovery in progress. */
qla82xx_rom_lock_recovery(ha);
goto dev_initialize;
} else
/* Firmware already running. */
goto dev_ready; goto dev_ready;
} }
return rval;
dev_initialize: dev_initialize:
/* set to DEV_INITIALIZING */ /* set to DEV_INITIALIZING */
qla_printk(KERN_INFO, ha, "HW State: INITIALIZING\n"); qla_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment