[SCSI] qla2xxx: Add FC-transport Asynchronous Event Notification support.
Supported events include LIP, LIP reset, RSCN, link up, and link
down.
To support AEN (and additional forthcoming features), we also
introduce a simple deferred-work construct to manage events which
require a non-atomic sleeping-capable context. This work-list is
processed as part of the driver's standard DPC routine.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 4e9f410..e9d8a79 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -408,6 +408,7 @@
set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
ha->flags.management_server_logged_in = 0;
+ qla2x00_post_aen_work(ha, FCH_EVT_LIP, mb[1]);
break;
case MBA_LOOP_UP: /* Loop Up Event */
@@ -427,6 +428,7 @@
link_speed);
ha->flags.management_server_logged_in = 0;
+ qla2x00_post_aen_work(ha, FCH_EVT_LINKUP, ha->link_data_rate);
break;
case MBA_LOOP_DOWN: /* Loop Down Event */
@@ -450,6 +452,7 @@
ha->link_data_rate = PORT_SPEED_UNKNOWN;
if (ql2xfdmienable)
set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
+ qla2x00_post_aen_work(ha, FCH_EVT_LINKDOWN, 0);
break;
case MBA_LIP_RESET: /* LIP reset occurred */
@@ -473,6 +476,7 @@
ha->operating_mode = LOOP;
ha->flags.management_server_logged_in = 0;
+ qla2x00_post_aen_work(ha, FCH_EVT_LIPRESET, mb[1]);
break;
case MBA_POINT_TO_POINT: /* Point-to-Point */
@@ -610,6 +614,7 @@
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
set_bit(RSCN_UPDATE, &ha->dpc_flags);
+ qla2x00_post_aen_work(ha, FCH_EVT_RSCN, rscn_entry);
break;
/* case MBA_RIO_RESPONSE: */