[SCSI] qla2xxx: Handle MPI timeout indicated by AE8002

In case the MPI times out, the FW issues an async event AE8002
to indicate this to every FCoE function. The FC/FCoE driver is
required to handle this, by doing a soft reset and issuing a
Write MPI register mailbox command to reset the MPI.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 6982ba70e12a..bb4d63a792aa 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -412,8 +412,14 @@ skip_rio:
                                     "Unrecoverable Hardware Error: adapter "
                                     "marked OFFLINE!\n");
                                 vha->flags.online = 0;
-                        } else
+                        } else {
+                                /* Check to see if MPI timeout occured */
+                                if ((mbx & MBX_3) && (ha->flags.port0))
+                                        set_bit(MPI_RESET_NEEDED,
+                                            &vha->dpc_flags);
+
                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+                        }
                 } else if (mb[1] == 0) {
                         qla_printk(KERN_INFO, ha,
                             "Unrecoverable Hardware Error: adapter marked "