[SCSI] lpfc 8.3.13: Initialization code clean up and fixes.
- Add poll or wait flag parameter to hba_init_link and hba_down_link.
- (From Linux Community) Make return with ENXIO negative.
- Remove unused INB code from driver.
- Prevent block_magmt_io from returning until mailbox is inactive.
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index cd9697e..8da8fc6 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -621,6 +621,7 @@
/**
* lpfc_hba_init_link - Initialize the FC link
* @phba: pointer to lpfc hba data structure.
+ * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the INIT_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
@@ -632,7 +633,7 @@
* Any other value - error
**/
int
-lpfc_hba_init_link(struct lpfc_hba *phba)
+lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
{
struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *pmb;
@@ -651,7 +652,7 @@
phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
lpfc_set_loopback_flag(phba);
- rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ rc = lpfc_sli_issue_mbox(phba, pmb, flag);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0498 Adapter failed to init, mbxCmd x%x "
@@ -664,17 +665,21 @@
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
phba->link_state = LPFC_HBA_ERROR;
- if (rc != MBX_BUSY)
+ if (rc != MBX_BUSY || flag == MBX_POLL)
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
+ if (flag == MBX_POLL)
+ mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/**
* lpfc_hba_down_link - this routine downs the FC link
+ * @phba: pointer to lpfc hba data structure.
+ * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the DOWN_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
@@ -685,7 +690,7 @@
* Any other value - error
**/
int
-lpfc_hba_down_link(struct lpfc_hba *phba)
+lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
{
LPFC_MBOXQ_t *pmb;
int rc;
@@ -701,7 +706,7 @@
"0491 Adapter Link is disabled.\n");
lpfc_down_link(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
- rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ rc = lpfc_sli_issue_mbox(phba, pmb, flag);
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
lpfc_printf_log(phba,
KERN_ERR, LOG_INIT,
@@ -711,6 +716,9 @@
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
+ if (flag == MBX_POLL)
+ mempool_free(pmb, phba->mbox_mem_pool);
+
return 0;
}
@@ -2279,10 +2287,32 @@
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
unsigned long iflag;
+ uint8_t actcmd = MBX_HEARTBEAT;
+ unsigned long timeout;
+
spin_lock_irqsave(&phba->hbalock, iflag);
phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
+ if (phba->sli.mbox_active)
+ actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
spin_unlock_irqrestore(&phba->hbalock, iflag);
+ /* Determine how long we might wait for the active mailbox
+ * command to be gracefully completed by firmware.
+ */
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
+ jiffies;
+ /* Wait for the outstnading mailbox command to complete */
+ while (phba->sli.mbox_active) {
+ /* Check active mailbox complete status every 2ms */
+ msleep(2);
+ if (time_after(jiffies, timeout)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2813 Mgmt IO is Blocked %x "
+ "- mbox cmd %x still active\n",
+ phba->sli.sli_flag, actcmd);
+ break;
+ }
+ }
}
/**