Commit 89533e9b authored by James Smart's avatar James Smart Committed by Martin K. Petersen

scsi: lpfc: Correct panics with eh_timeout and eh_deadline

Correct panics with eh_timeout and eh_deadline

We were having double completions on our SLI-3 version of adapters.
Solved by clearing our command pointer before calling scsi_done.

The eh paths potentially ran simulatenously and would see the non-null
value and invoke scsi_done again.
Signed-off-by: default avatarDick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: default avatarJames Smart <james.smart@broadcom.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 401304cc
...@@ -4142,13 +4142,13 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, ...@@ -4142,13 +4142,13 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
/* The sdev is not guaranteed to be valid post scsi_done upcall. */
cmd->scsi_done(cmd);
spin_lock_irqsave(&phba->hbalock, flags); spin_lock_irqsave(&phba->hbalock, flags);
lpfc_cmd->pCmd = NULL; lpfc_cmd->pCmd = NULL;
spin_unlock_irqrestore(&phba->hbalock, flags); spin_unlock_irqrestore(&phba->hbalock, flags);
/* The sdev is not guaranteed to be valid post scsi_done upcall. */
cmd->scsi_done(cmd);
/* /*
* If there is a thread waiting for command completion * If there is a thread waiting for command completion
* wake up the thread. * wake up the thread.
......
...@@ -2677,15 +2677,16 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, ...@@ -2677,15 +2677,16 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
if (iotag != 0 && iotag <= phba->sli.last_iotag) { if (iotag != 0 && iotag <= phba->sli.last_iotag) {
cmd_iocb = phba->sli.iocbq_lookup[iotag]; cmd_iocb = phba->sli.iocbq_lookup[iotag];
list_del_init(&cmd_iocb->list);
if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) { if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
/* remove from txcmpl queue list */
list_del_init(&cmd_iocb->list);
cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ; cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
return cmd_iocb;
} }
return cmd_iocb;
} }
lpfc_printf_log(phba, KERN_ERR, LOG_SLI, lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0317 iotag x%x is out off " "0317 iotag x%x is out of "
"range: max iotag x%x wd0 x%x\n", "range: max iotag x%x wd0 x%x\n",
iotag, phba->sli.last_iotag, iotag, phba->sli.last_iotag,
*(((uint32_t *) &prspiocb->iocb) + 7)); *(((uint32_t *) &prspiocb->iocb) + 7));
...@@ -2720,8 +2721,9 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, ...@@ -2720,8 +2721,9 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
return cmd_iocb; return cmd_iocb;
} }
} }
lpfc_printf_log(phba, KERN_ERR, LOG_SLI, lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0372 iotag x%x is out off range: max iotag (x%x)\n", "0372 iotag x%x is out of range: max iotag (x%x)\n",
iotag, phba->sli.last_iotag); iotag, phba->sli.last_iotag);
return NULL; return NULL;
} }
...@@ -11808,6 +11810,8 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba, ...@@ -11808,6 +11810,8 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
/* Look up the ELS command IOCB and create pseudo response IOCB */ /* Look up the ELS command IOCB and create pseudo response IOCB */
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
bf_get(lpfc_wcqe_c_request_tag, wcqe)); bf_get(lpfc_wcqe_c_request_tag, wcqe));
/* Put the iocb back on the txcmplq */
lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
spin_unlock_irqrestore(&pring->ring_lock, iflags); spin_unlock_irqrestore(&pring->ring_lock, iflags);
if (unlikely(!cmdiocbq)) { if (unlikely(!cmdiocbq)) {
......
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