[SCSI] bfa: Added support to configure QOS and collect stats.

- Added support to configure QOS on Brocade adapter ports.
- Added support to collect / reset QOS statistics.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 9884d6edfb57..d0ed4dd6f35a 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -2230,6 +2230,11 @@ bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport,
                 BFA_LOG(KERN_INFO, bfad, bfa_log_level,
                         "Base port online: WWN = %s\n", pwwn_buf);
                 bfa_fcport_aen_post(fcport, BFA_PORT_AEN_ONLINE);
+
+                /* If QoS is enabled and it is not online, send AEN */
+                if (fcport->cfg.qos_enabled &&
+                    fcport->qos_attr.state != BFA_QOS_ONLINE)
+                        bfa_fcport_aen_post(fcport, BFA_PORT_AEN_QOS_NEG);
                 break;
 
         case BFA_FCPORT_SM_LINKDOWN:
@@ -3454,6 +3459,11 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
                                 fcport->use_flash_cfg = BFA_FALSE;
                         }
 
+                        if (fcport->cfg.qos_enabled)
+                                fcport->qos_attr.state = BFA_QOS_OFFLINE;
+                        else
+                                fcport->qos_attr.state = BFA_QOS_DISABLED;
+
                         bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP);
                 }
                 break;