/* Set up heart beat (HB) timer */
mod_timer(&phba->hb_tmofunc,
jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
- phba->hb_outstanding = 0;
+ phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
phba->last_completion_time = jiffies;
/* Set up error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll,
unsigned long drvr_flag;
spin_lock_irqsave(&phba->hbalock, drvr_flag);
- phba->hb_outstanding = 0;
+ phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
- /* Check and reset heart-beat timer is necessary */
+ /* Check and reset heart-beat timer if necessary */
mempool_free(pmboxq, phba->mbox_mem_pool);
if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
!(phba->link_state == LPFC_HBA_ERROR) &&
}
/**
+ * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * If a HB mbox is not already in progrees, this routine will allocate
+ * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
+ * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
+ **/
+int
+lpfc_issue_hb_mbox(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *pmboxq;
+ int retval;
+
+ /* Is a Heartbeat mbox already in progress */
+ if (phba->hba_flag & HBA_HBEAT_INP)
+ return 0;
+
+ pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmboxq)
+ return -ENOMEM;
+
+ lpfc_heart_beat(phba, pmboxq);
+ pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
+ pmboxq->vport = phba->pport;
+ retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
+
+ if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ return -ENXIO;
+ }
+ phba->hba_flag |= HBA_HBEAT_INP;
+
+ return 0;
+}
+
+/**
+ * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
+ * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
+ * of the value of lpfc_enable_hba_heartbeat.
+ * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
+ * try to issue a MBX_HEARTBEAT mbox command.
+ **/
+void
+lpfc_issue_hb_tmo(struct lpfc_hba *phba)
+{
+ if (phba->cfg_enable_hba_heartbeat)
+ return;
+ phba->hba_flag |= HBA_HBEAT_TMO;
+}
+
+/**
* lpfc_hb_timeout_handler - The HBA-timer timeout handler
* @phba: pointer to lpfc hba data structure.
*
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
- LPFC_MBOXQ_t *pmboxq;
struct lpfc_dmabuf *buf_ptr;
- int retval, i;
+ int retval = 0;
+ int i, tmo;
struct lpfc_sli *psli = &phba->sli;
LIST_HEAD(completions);
(phba->pport->fc_flag & FC_OFFLINE_MODE))
return;
- spin_lock_irq(&phba->pport->work_port_lock);
-
- if (time_after(phba->last_completion_time +
- msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
- jiffies)) {
- spin_unlock_irq(&phba->pport->work_port_lock);
- if (!phba->hb_outstanding)
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
- else
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
- return;
- }
- spin_unlock_irq(&phba->pport->work_port_lock);
-
if (phba->elsbuf_cnt &&
(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
spin_lock_irq(&phba->hbalock);
/* If there is no heart beat outstanding, issue a heartbeat command */
if (phba->cfg_enable_hba_heartbeat) {
- if (!phba->hb_outstanding) {
+ /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
+ spin_lock_irq(&phba->pport->work_port_lock);
+ if (time_after(phba->last_completion_time +
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
+ jiffies)) {
+ spin_unlock_irq(&phba->pport->work_port_lock);
+ if (phba->hba_flag & HBA_HBEAT_INP)
+ tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
+ else
+ tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
+ goto out;
+ }
+ spin_unlock_irq(&phba->pport->work_port_lock);
+
+ /* Check if a MBX_HEARTBEAT is already in progress */
+ if (phba->hba_flag & HBA_HBEAT_INP) {
+ /*
+ * If heart beat timeout called with HBA_HBEAT_INP set
+ * we need to give the hb mailbox cmd a chance to
+ * complete or TMO.
+ */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0459 Adapter heartbeat still outstanding: "
+ "last compl time was %d ms.\n",
+ jiffies_to_msecs(jiffies
+ - phba->last_completion_time));
+ tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
+ } else {
if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
(list_empty(&psli->mboxq))) {
- pmboxq = mempool_alloc(phba->mbox_mem_pool,
- GFP_KERNEL);
- if (!pmboxq) {
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 *
- LPFC_HB_MBOX_INTERVAL));
- return;
- }
- lpfc_heart_beat(phba, pmboxq);
- pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
- pmboxq->vport = phba->pport;
- retval = lpfc_sli_issue_mbox(phba, pmboxq,
- MBX_NOWAIT);
-
- if (retval != MBX_BUSY &&
- retval != MBX_SUCCESS) {
- mempool_free(pmboxq,
- phba->mbox_mem_pool);
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 *
- LPFC_HB_MBOX_INTERVAL));
- return;
+ retval = lpfc_issue_hb_mbox(phba);
+ if (retval) {
+ tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
+ goto out;
}
phba->skipped_hb = 0;
- phba->hb_outstanding = 1;
} else if (time_before_eq(phba->last_completion_time,
phba->skipped_hb)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
} else
phba->skipped_hb = jiffies;
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
- return;
- } else {
- /*
- * If heart beat timeout called with hb_outstanding set
- * we need to give the hb mailbox cmd a chance to
- * complete or TMO.
- */
- lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
- "0459 Adapter heartbeat still out"
- "standing:last compl time was %d ms.\n",
- jiffies_to_msecs(jiffies
- - phba->last_completion_time));
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
+ tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
+ goto out;
}
} else {
- mod_timer(&phba->hb_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
+ /* Check to see if we want to force a MBX_HEARTBEAT */
+ if (phba->hba_flag & HBA_HBEAT_TMO) {
+ retval = lpfc_issue_hb_mbox(phba);
+ if (retval)
+ tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
+ else
+ tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
+ goto out;
+ }
+ tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
}
+out:
+ mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
}
/**
del_timer_sync(&phba->rrq_tmr);
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
}
- phba->hb_outstanding = 0;
+ phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
spin_unlock_irq(&phba->hbalock);
}
+ /* Make sure HBA is alive */
+ lpfc_issue_hb_tmo(phba);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
/* Start heart beat timer */
mod_timer(&phba->hb_tmofunc,
jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
- phba->hb_outstanding = 0;
+ phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
phba->last_completion_time = jiffies;
/* start eq_delay heartbeat */
}
spin_unlock_irqrestore(&phba->hbalock, flags);
+ /* Make sure HBA is alive */
+ lpfc_issue_hb_tmo(phba);
+
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
spin_unlock_irqrestore(
&phba->pport->work_port_lock,
iflag);
- lpfc_mbox_cmpl_put(phba, pmb);
+
+ /* Do NOT queue MBX_HEARTBEAT to the worker
+ * thread for processing.
+ */
+ if (pmbox->mbxCommand == MBX_HEARTBEAT) {
+ /* Process mbox now */
+ phba->sli.mbox_active = NULL;
+ phba->sli.sli_flag &=
+ ~LPFC_SLI_MBOX_ACTIVE;
+ if (pmb->mbox_cmpl)
+ pmb->mbox_cmpl(phba, pmb);
+ } else {
+ /* Queue to worker thread to process */
+ lpfc_mbox_cmpl_put(phba, pmb);
+ }
}
} else
spin_unlock_irqrestore(&phba->hbalock, iflag);
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
- /* There is mailbox completion work to do */
+ /* Do NOT queue MBX_HEARTBEAT to the worker thread for processing. */
+ if (pmbox->mbxCommand == MBX_HEARTBEAT) {
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ /* Release the mailbox command posting token */
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ if (bf_get(lpfc_trailer_consumed, mcqe))
+ lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ /* Post the next mbox command, if there is one */
+ lpfc_sli4_post_async_mbox(phba);
+
+ /* Process cmpl now */
+ if (pmb->mbox_cmpl)
+ pmb->mbox_cmpl(phba, pmb);
+ return false;
+ }
+
+ /* There is mailbox completion work to queue to the worker thread */
spin_lock_irqsave(&phba->hbalock, iflags);
__lpfc_mbox_cmpl_put(phba, pmb);
phba->work_ha |= HA_MBATT;
projects / platform / kernel / linux-rpi.git / commitdiff