[SCSI] bfa: Add FC-transport based Asynchronous Event Notification support.
- Added support to post vendor unique events on fc_host.
- Supports adapter, port, ioc, flash and remote port based AEN events.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index f2bf812..0131238 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -656,6 +656,31 @@
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}
+static void bfad_aen_im_notify_handler(struct work_struct *work)
+{
+ struct bfad_im_s *im =
+ container_of(work, struct bfad_im_s, aen_im_notify_work);
+ struct bfa_aen_entry_s *aen_entry;
+ struct bfad_s *bfad = im->bfad;
+ struct Scsi_Host *shost = bfad->pport.im_port->shost;
+ void *event_data;
+ unsigned long flags;
+
+ while (!list_empty(&bfad->active_aen_q)) {
+ spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags);
+ bfa_q_deq(&bfad->active_aen_q, &aen_entry);
+ spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags);
+ event_data = (char *)aen_entry + sizeof(struct list_head);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(struct bfa_aen_entry_s) -
+ sizeof(struct list_head),
+ (char *)event_data, BFAD_NL_VENDOR_ID);
+ spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags);
+ list_add_tail(&aen_entry->qe, &bfad->free_aen_q);
+ spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags);
+ }
+}
+
bfa_status_t
bfad_im_probe(struct bfad_s *bfad)
{
@@ -676,6 +701,7 @@
rc = BFA_STATUS_FAILED;
}
+ INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler);
ext:
return rc;
}