microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

scsi: lpfc: Fix Abort request WQ selection 

When running loads that generated aborts, io errors where seen.  Turns
out the abort requests where not placed on the proper WQ resulting in
the errors. Closer inspection inspection of this error also showed
improper spinlock api use.

Correct the WQ selection policy for the abort requests.  Correct
spin_lock/spin_lock_irq/spin_lock_irqsave usage.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2018-04-09 14:24:25 -07:00 коммит произвёл Martin K. Petersen
Родитель 2448e48425
Коммит 59c68eaad7
2 изменённых файлов: 13 добавлений и 13 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

12
drivers/scsi/lpfc/lpfc_scsi.c
Просмотреть файл

@ -1021,7 +1021,7 @@ lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
if (lpfc_test_rrq_active(phba, ndlp,
lpfc_cmd->cur_iocbq.sli4_lxritag))
continue;
list_del(&lpfc_cmd->list);
list_del_init(&lpfc_cmd->list);
found = 1;
break;
}
@ -1036,7 +1036,7 @@ lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
if (lpfc_test_rrq_active(
phba, ndlp, lpfc_cmd->cur_iocbq.sli4_lxritag))
continue;
list_del(&lpfc_cmd->list);
list_del_init(&lpfc_cmd->list);
found = 1;
break;
}
@ -4716,7 +4716,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
int ret = SUCCESS, status = 0;
struct lpfc_sli_ring *pring_s4;
int ret_val;
unsigned long flags, iflags;
unsigned long flags;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
status = fc_block_scsi_eh(cmnd);
@ -4816,16 +4816,16 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
abtsiocb->vport = vport;
if (phba->sli_rev == LPFC_SLI_REV4) {
pring_s4 = lpfc_sli4_calc_ring(phba, iocb);
pring_s4 = lpfc_sli4_calc_ring(phba, abtsiocb);
if (pring_s4 == NULL) {
ret = FAILED;
goto out_unlock;
}
/* Note: both hbalock and ring_lock must be set here */
spin_lock_irqsave(&pring_s4->ring_lock, iflags);
spin_lock(&pring_s4->ring_lock);
ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
abtsiocb, 0);
spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
spin_unlock(&pring_s4->ring_lock);
} else {
ret_val = __lpfc_sli_issue_iocb(phba, LPFC_FCP_RING,
abtsiocb, 0);

14
drivers/scsi/lpfc/lpfc_sli.c
Просмотреть файл

@ -11300,11 +11300,11 @@ lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
unsigned long iflags;
struct lpfc_sli_ring *pring_s4;
spin_lock_irq(&phba->hbalock);
spin_lock_irqsave(&phba->hbalock, iflags);
/* all I/Os are in process of being flushed */
if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
spin_unlock_irq(&phba->hbalock);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return 0;
}
sum = 0;
@ -11366,14 +11366,14 @@ lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
if (phba->sli_rev == LPFC_SLI_REV4) {
pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
if (pring_s4 == NULL)
pring_s4 = lpfc_sli4_calc_ring(phba, abtsiocbq);
if (!pring_s4)
continue;
/* Note: both hbalock and ring_lock must be set here */
spin_lock_irqsave(&pring_s4->ring_lock, iflags);
spin_lock(&pring_s4->ring_lock);
ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
abtsiocbq, 0);
spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
spin_unlock(&pring_s4->ring_lock);
} else {
ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
abtsiocbq, 0);
@ -11385,7 +11385,7 @@ lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
else
sum++;
}
spin_unlock_irq(&phba->hbalock);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return sum;
}