From: James Smart <James.Smart@Emulex.Com>
To: linux-scsi@vger.kernel.org
Subject: [PATCH 12/16] lpfc 8.1.12 : Don't process ERATT interrupts when issuing KILL_BOARD mbx command
Date: Wed, 25 Apr 2007 09:53:15 -0400 [thread overview]
Message-ID: <1177509195.23155.19.camel@localhost.localdomain> (raw)
Don't process ERATT interrupts when issuing KILL_BOARD mbx command
Signed-off-by: James Smart <James.Smart@emulex.com>
diff -upNr a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
--- a/drivers/scsi/lpfc/lpfc.h 2007-04-24 11:12:42.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc.h 2007-04-24 11:12:43.000000000 -0400
@@ -250,6 +250,7 @@ struct lpfc_hba {
#define FC_LOOPBACK_MODE 0x40000 /* NPort is in Loopback mode */
/* This flag is set while issuing */
/* INIT_LINK mailbox command */
+#define FC_IGNORE_ERATT 0x80000 /* intr handler should ignore ERATT */
uint32_t fc_topology; /* link topology, from LINK INIT */
diff -upNr a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
--- a/drivers/scsi/lpfc/lpfc_sli.c 2007-04-24 11:12:42.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_sli.c 2007-04-24 11:12:43.000000000 -0400
@@ -1584,6 +1584,7 @@ void lpfc_reset_barrier(struct lpfc_hba
hc_copy = readl(phba->HCregaddr);
writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
+ phba->fc_flag |= FC_IGNORE_ERATT;
if (readl(phba->HAregaddr) & HA_ERATT) {
/* Clear Chip error bit */
@@ -1626,6 +1627,7 @@ clear_errat:
}
restore_hc:
+ phba->fc_flag &= ~FC_IGNORE_ERATT;
writel(hc_copy, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
@@ -1661,6 +1663,7 @@ lpfc_sli_brdkill(struct lpfc_hba * phba)
status &= ~HC_ERINT_ENA;
writel(status, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
+ phba->fc_flag |= FC_IGNORE_ERATT;
spin_unlock_irq(phba->host->host_lock);
lpfc_kill_board(phba, pmb);
@@ -1670,6 +1673,9 @@ lpfc_sli_brdkill(struct lpfc_hba * phba)
if (retval != MBX_SUCCESS) {
if (retval != MBX_BUSY)
mempool_free(pmb, phba->mbox_mem_pool);
+ spin_lock_irq(phba->host->host_lock);
+ phba->fc_flag &= ~FC_IGNORE_ERATT;
+ spin_unlock_irq(phba->host->host_lock);
return 1;
}
@@ -1696,6 +1702,7 @@ lpfc_sli_brdkill(struct lpfc_hba * phba)
}
spin_lock_irq(phba->host->host_lock);
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->fc_flag &= ~FC_IGNORE_ERATT;
spin_unlock_irq(phba->host->host_lock);
psli->mbox_active = NULL;
@@ -3207,6 +3214,11 @@ lpfc_intr_handler(int irq, void *dev_id)
*/
spin_lock(phba->host->host_lock);
ha_copy = readl(phba->HAregaddr);
+ /* If somebody is waiting to handle an eratt don't process it
+ * here. The brdkill function will do this.
+ */
+ if (phba->fc_flag & FC_IGNORE_ERATT)
+ ha_copy &= ~HA_ERATT;
writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock(phba->host->host_lock);
reply other threads:[~2007-04-25 13:53 UTC|newest]
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