[SCSI] bfa: Add support to collect / reset fabric stats.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index 2109ed3..66349bd 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -2349,6 +2349,51 @@
return 0;
}
+int
+bfad_iocmd_vf_get_stats(struct bfad_s *bfad, void *cmd)
+{
+ struct bfa_bsg_vf_stats_s *iocmd =
+ (struct bfa_bsg_vf_stats_s *)cmd;
+ struct bfa_fcs_fabric_s *fcs_vf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ fcs_vf = bfa_fcs_vf_lookup(&bfad->bfa_fcs, iocmd->vf_id);
+ if (fcs_vf == NULL) {
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ iocmd->status = BFA_STATUS_UNKNOWN_VFID;
+ goto out;
+ }
+ memcpy((void *)&iocmd->stats, (void *)&fcs_vf->stats,
+ sizeof(struct bfa_vf_stats_s));
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ iocmd->status = BFA_STATUS_OK;
+out:
+ return 0;
+}
+
+int
+bfad_iocmd_vf_clr_stats(struct bfad_s *bfad, void *cmd)
+{
+ struct bfa_bsg_vf_reset_stats_s *iocmd =
+ (struct bfa_bsg_vf_reset_stats_s *)cmd;
+ struct bfa_fcs_fabric_s *fcs_vf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ fcs_vf = bfa_fcs_vf_lookup(&bfad->bfa_fcs, iocmd->vf_id);
+ if (fcs_vf == NULL) {
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ iocmd->status = BFA_STATUS_UNKNOWN_VFID;
+ goto out;
+ }
+ memset((void *)&fcs_vf->stats, 0, sizeof(struct bfa_vf_stats_s));
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ iocmd->status = BFA_STATUS_OK;
+out:
+ return 0;
+}
+
static int
bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
unsigned int payload_len)
@@ -2661,6 +2706,12 @@
case IOCMD_QOS_RESET_STATS:
rc = bfad_iocmd_qos_reset_stats(bfad, iocmd);
break;
+ case IOCMD_VF_GET_STATS:
+ rc = bfad_iocmd_vf_get_stats(bfad, iocmd);
+ break;
+ case IOCMD_VF_RESET_STATS:
+ rc = bfad_iocmd_vf_clr_stats(bfad, iocmd);
+ break;
default:
rc = -EINVAL;
break;