[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>

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 4dc2d58..fbf108c 100644 (file)
--- 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