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[SCSI] lpfc 8.1.7: Fix txcmplq related panics on heavy IO while downloading firmware 

Fix txcmplq related panics on heavy IO while downloading firmware

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Smart 2006-07-06 15:49:56 -04:00 committed by James Bottomley
parent 4db621e0f3
commit 688a88635f
1 changed files with 17 additions and 7 deletions
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24
drivers/scsi/lpfc/lpfc_init.c
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@ -1339,7 +1339,8 @@ lpfc_offline(struct lpfc_hba * phba)
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
unsigned long iflag;
int i = 0;
int i;
int cnt = 0;
if (!phba)
return 0;
@ -1348,17 +1349,26 @@ lpfc_offline(struct lpfc_hba * phba)
return 0;
psli = &phba->sli;
pring = &psli->ring[psli->fcp_ring];
lpfc_linkdown(phba);
/* The linkdown event takes 30 seconds to timeout. */
while (pring->txcmplq_cnt) {
mdelay(10);
if (i++ > 3000)
break;
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
/* The linkdown event takes 30 seconds to timeout. */
while (pring->txcmplq_cnt) {
mdelay(10);
if (cnt++ > 3000) {
lpfc_printf_log(phba,
KERN_WARNING, LOG_INIT,
"%d:0466 Outstanding IO when "
"bringing Adapter offline\n",
phba->brd_no);
break;
}
}
}
/* stop all timers associated with this hba */
lpfc_stop_timer(phba);
phba->work_hba_events = 0;