[SCSI] lpfc 8.1.7 : Fix race condition between lpfc_sli_issue_mbox and lpfc_online

Fix race condition between lpfc_sli_issue_mbox and lpfc_online

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 4dc2d584319e..fbf108c9625c 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1711,15 +1711,13 @@ lpfc_sli_brdreset(struct lpfc_hba * phba)
         phba->fc_myDID = 0;
         phba->fc_prevDID = 0;
 
-        psli->sli_flag = 0;
-
         /* Turn off parity checking and serr during the physical reset */
         pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
         pci_write_config_word(phba->pcidev, PCI_COMMAND,
                               (cfg_value &
                                ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
 
-        psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+        psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
         /* Now toggle INITFF bit in the Host Control Register */
         writel(HC_INITFF, phba->HCregaddr);
         mdelay(1);
@@ -1905,6 +1903,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba)
         }
 
         while (resetcount < 2 && !done) {
+                spin_lock_irq(phba->host->host_lock);
+                phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+                spin_unlock_irq(phba->host->host_lock);
                 phba->hba_state = LPFC_STATE_UNKNOWN;
                 lpfc_sli_brdrestart(phba);
                 msleep(2500);
@@ -1912,6 +1913,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba)
                 if (rc)
                         break;
 
+                spin_lock_irq(phba->host->host_lock);
+                phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+                spin_unlock_irq(phba->host->host_lock);
                 resetcount++;
 
         /* Call pre CONFIG_PORT mailbox command initialization.  A value of 0