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path: root/drivers/scsi/lpfc/lpfc_sli.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c112
1 files changed, 68 insertions, 44 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index fc0d9501aba6..70a0a9eab211 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -2648,7 +2648,6 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
spin_unlock_irq(&phba->pport->work_port_lock);
spin_lock_irq(&phba->hbalock);
phba->link_state = LPFC_LINK_UNKNOWN;
- phba->pport->fc_flag |= FC_ESTABLISH_LINK;
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(&phba->hbalock);
@@ -2669,8 +2668,7 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
lpfc_offline_prep(phba);
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
- if (lpfc_online(phba) == 0) /* Initialize the HBA */
- mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
+ lpfc_online(phba);
lpfc_unblock_mgmt_io(phba);
return;
}
@@ -2687,28 +2685,41 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
unsigned long drvr_flag = 0;
volatile uint32_t word0, ldata;
void __iomem *to_slim;
+ int processing_queue = 0;
+
+ spin_lock_irqsave(&phba->hbalock, drvr_flag);
+ if (!pmbox) {
+ /* processing mbox queue from intr_handler */
+ processing_queue = 1;
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ pmbox = lpfc_mbox_get(phba);
+ if (!pmbox) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+ return MBX_SUCCESS;
+ }
+ }
if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
if(!pmbox->vport) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
lpfc_printf_log(phba, KERN_ERR,
LOG_MBOX | LOG_VPORT,
"1806 Mbox x%x failed. No vport\n",
pmbox->mb.mbxCommand);
dump_stack();
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
}
-
/* If the PCI channel is in offline state, do not post mbox. */
- if (unlikely(pci_channel_offline(phba->pcidev)))
- return MBX_NOT_FINISHED;
+ if (unlikely(pci_channel_offline(phba->pcidev))) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+ goto out_not_finished;
+ }
- spin_lock_irqsave(&phba->hbalock, drvr_flag);
psli = &phba->sli;
-
mb = &pmbox->mb;
status = MBX_SUCCESS;
@@ -2717,14 +2728,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
!(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
@@ -2738,14 +2749,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
/* Another mailbox command is still being processed, queue this
@@ -2792,7 +2803,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
/* timeout active mbox command */
mod_timer(&psli->mbox_tmo, (jiffies +
@@ -2900,7 +2911,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
/* Check if we took a mbox interrupt while we were
@@ -2967,6 +2978,13 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return status;
+
+out_not_finished:
+ if (processing_queue) {
+ pmbox->mb.mbxStatus = MBX_NOT_FINISHED;
+ lpfc_mbox_cmpl_put(phba, pmbox);
+ }
+ return MBX_NOT_FINISHED;
}
/*
@@ -3463,26 +3481,21 @@ lpfc_sli_hba_down(struct lpfc_hba *phba)
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
spin_unlock(&phba->pport->work_port_lock);
+ /* Return any pending or completed mbox cmds */
+ list_splice_init(&phba->sli.mboxq, &completions);
if (psli->mbox_active) {
list_add_tail(&psli->mbox_active->list, &completions);
psli->mbox_active = NULL;
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
}
-
- /* Return any pending or completed mbox cmds */
- list_splice_init(&phba->sli.mboxq, &completions);
list_splice_init(&phba->sli.mboxq_cmpl, &completions);
- INIT_LIST_HEAD(&psli->mboxq);
- INIT_LIST_HEAD(&psli->mboxq_cmpl);
-
spin_unlock_irqrestore(&phba->hbalock, flags);
while (!list_empty(&completions)) {
list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
pmb->mb.mbxStatus = MBX_NOT_FINISHED;
- if (pmb->mbox_cmpl) {
+ if (pmb->mbox_cmpl)
pmb->mbox_cmpl(phba,pmb);
- }
}
return 1;
}
@@ -3613,6 +3626,15 @@ lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
irsp->ulpStatus, irsp->un.ulpWord[4]);
/*
+ * If the iocb is not found in Firmware queue the iocb
+ * might have completed already. Do not free it again.
+ */
+ if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
+ return;
+ }
+ /*
* make sure we have the right iocbq before taking it
* off the txcmplq and try to call completion routine.
*/
@@ -4174,6 +4196,7 @@ lpfc_intr_handler(int irq, void *dev_id)
phba->pport->stopped = 1;
}
+ spin_lock(&phba->hbalock);
if ((work_ha_copy & HA_MBATT) &&
(phba->sli.mbox_active)) {
pmb = phba->sli.mbox_active;
@@ -4184,6 +4207,7 @@ lpfc_intr_handler(int irq, void *dev_id)
/* First check out the status word */
lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
if (pmbox->mbxOwner != OWN_HOST) {
+ spin_unlock(&phba->hbalock);
/*
* Stray Mailbox Interrupt, mbxCommand <cmd>
* mbxStatus <status>
@@ -4199,10 +4223,10 @@ lpfc_intr_handler(int irq, void *dev_id)
/* clear mailbox attention bit */
work_ha_copy &= ~HA_MBATT;
} else {
+ phba->sli.mbox_active = NULL;
+ spin_unlock(&phba->hbalock);
phba->last_completion_time = jiffies;
del_timer(&phba->sli.mbox_tmo);
-
- phba->sli.mbox_active = NULL;
if (pmb->mbox_cmpl) {
lpfc_sli_pcimem_bcopy(mbox, pmbox,
MAILBOX_CMD_SIZE);
@@ -4237,10 +4261,15 @@ lpfc_intr_handler(int irq, void *dev_id)
pmb->context1 = mp;
pmb->context2 = ndlp;
pmb->vport = vport;
- spin_lock(&phba->hbalock);
- phba->sli.sli_flag &=
- ~LPFC_SLI_MBOX_ACTIVE;
- spin_unlock(&phba->hbalock);
+ rc = lpfc_sli_issue_mbox(phba,
+ pmb,
+ MBX_NOWAIT);
+ if (rc != MBX_BUSY)
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "0306 rc should have"
+ "been MBX_BUSY");
goto send_current_mbox;
}
}
@@ -4250,25 +4279,20 @@ lpfc_intr_handler(int irq, void *dev_id)
spin_unlock(&phba->pport->work_port_lock);
lpfc_mbox_cmpl_put(phba, pmb);
}
- }
+ } else
+ spin_unlock(&phba->hbalock);
if ((work_ha_copy & HA_MBATT) &&
(phba->sli.mbox_active == NULL)) {
-send_next_mbox:
- spin_lock(&phba->hbalock);
- phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
- pmb = lpfc_mbox_get(phba);
- spin_unlock(&phba->hbalock);
send_current_mbox:
/* Process next mailbox command if there is one */
- if (pmb != NULL) {
- rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
- if (rc == MBX_NOT_FINISHED) {
- pmb->mb.mbxStatus = MBX_NOT_FINISHED;
- lpfc_mbox_cmpl_put(phba, pmb);
- goto send_next_mbox;
- }
- }
-
+ do {
+ rc = lpfc_sli_issue_mbox(phba, NULL,
+ MBX_NOWAIT);
+ } while (rc == MBX_NOT_FINISHED);
+ if (rc != MBX_SUCCESS)
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
+ LOG_SLI, "0349 rc should be "
+ "MBX_SUCCESS");
}
spin_lock(&phba->hbalock);