[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>
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index 55a9180..2109ed3 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -2228,6 +2228,127 @@
return 0;
}
+int
+bfad_iocmd_qos(struct bfad_s *bfad, void *cmd, unsigned int v_cmd)
+{
+ struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd;
+ struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
+ unsigned long flags;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ if (bfa_ioc_get_type(&bfad->bfa.ioc) == BFA_IOC_TYPE_FC) {
+ if (v_cmd == IOCMD_QOS_ENABLE)
+ fcport->cfg.qos_enabled = BFA_TRUE;
+ else if (v_cmd == IOCMD_QOS_DISABLE)
+ fcport->cfg.qos_enabled = BFA_FALSE;
+ }
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+ iocmd->status = BFA_STATUS_OK;
+ return 0;
+}
+
+int
+bfad_iocmd_qos_get_attr(struct bfad_s *bfad, void *cmd)
+{
+ struct bfa_bsg_qos_attr_s *iocmd = (struct bfa_bsg_qos_attr_s *)cmd;
+ struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
+ unsigned long flags;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ iocmd->attr.state = fcport->qos_attr.state;
+ iocmd->attr.total_bb_cr = be32_to_cpu(fcport->qos_attr.total_bb_cr);
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+ iocmd->status = BFA_STATUS_OK;
+ return 0;
+}
+
+int
+bfad_iocmd_qos_get_vc_attr(struct bfad_s *bfad, void *cmd)
+{
+ struct bfa_bsg_qos_vc_attr_s *iocmd =
+ (struct bfa_bsg_qos_vc_attr_s *)cmd;
+ struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
+ struct bfa_qos_vc_attr_s *bfa_vc_attr = &fcport->qos_vc_attr;
+ unsigned long flags;
+ u32 i = 0;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ iocmd->attr.total_vc_count = be16_to_cpu(bfa_vc_attr->total_vc_count);
+ iocmd->attr.shared_credit = be16_to_cpu(bfa_vc_attr->shared_credit);
+ iocmd->attr.elp_opmode_flags =
+ be32_to_cpu(bfa_vc_attr->elp_opmode_flags);
+
+ /* Individual VC info */
+ while (i < iocmd->attr.total_vc_count) {
+ iocmd->attr.vc_info[i].vc_credit =
+ bfa_vc_attr->vc_info[i].vc_credit;
+ iocmd->attr.vc_info[i].borrow_credit =
+ bfa_vc_attr->vc_info[i].borrow_credit;
+ iocmd->attr.vc_info[i].priority =
+ bfa_vc_attr->vc_info[i].priority;
+ i++;
+ }
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+ iocmd->status = BFA_STATUS_OK;
+ return 0;
+}
+
+int
+bfad_iocmd_qos_get_stats(struct bfad_s *bfad, void *cmd)
+{
+ struct bfa_bsg_fcport_stats_s *iocmd =
+ (struct bfa_bsg_fcport_stats_s *)cmd;
+ struct bfad_hal_comp fcomp;
+ unsigned long flags;
+ struct bfa_cb_pending_q_s cb_qe;
+
+ init_completion(&fcomp.comp);
+ bfa_pending_q_init(&cb_qe, (bfa_cb_cbfn_t)bfad_hcb_comp,
+ &fcomp, &iocmd->stats);
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ WARN_ON(!bfa_ioc_get_fcmode(&bfad->bfa.ioc));
+ iocmd->status = bfa_fcport_get_stats(&bfad->bfa, &cb_qe);
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ if (iocmd->status != BFA_STATUS_OK) {
+ bfa_trc(bfad, iocmd->status);
+ goto out;
+ }
+ wait_for_completion(&fcomp.comp);
+ iocmd->status = fcomp.status;
+out:
+ return 0;
+}
+
+int
+bfad_iocmd_qos_reset_stats(struct bfad_s *bfad, void *cmd)
+{
+ struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd;
+ struct bfad_hal_comp fcomp;
+ unsigned long flags;
+ struct bfa_cb_pending_q_s cb_qe;
+
+ init_completion(&fcomp.comp);
+ bfa_pending_q_init(&cb_qe, (bfa_cb_cbfn_t)bfad_hcb_comp,
+ &fcomp, NULL);
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ WARN_ON(!bfa_ioc_get_fcmode(&bfad->bfa.ioc));
+ iocmd->status = bfa_fcport_clear_stats(&bfad->bfa, &cb_qe);
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ if (iocmd->status != BFA_STATUS_OK) {
+ bfa_trc(bfad, iocmd->status);
+ goto out;
+ }
+ wait_for_completion(&fcomp.comp);
+ iocmd->status = fcomp.status;
+out:
+ return 0;
+}
+
static int
bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
unsigned int payload_len)
@@ -2524,6 +2645,22 @@
case IOCMD_TRUNK_GET_ATTR:
rc = bfad_iocmd_trunk_get_attr(bfad, iocmd);
break;
+ case IOCMD_QOS_ENABLE:
+ case IOCMD_QOS_DISABLE:
+ rc = bfad_iocmd_qos(bfad, iocmd, cmd);
+ break;
+ case IOCMD_QOS_GET_ATTR:
+ rc = bfad_iocmd_qos_get_attr(bfad, iocmd);
+ break;
+ case IOCMD_QOS_GET_VC_ATTR:
+ rc = bfad_iocmd_qos_get_vc_attr(bfad, iocmd);
+ break;
+ case IOCMD_QOS_GET_STATS:
+ rc = bfad_iocmd_qos_get_stats(bfad, iocmd);
+ break;
+ case IOCMD_QOS_RESET_STATS:
+ rc = bfad_iocmd_qos_reset_stats(bfad, iocmd);
+ break;
default:
rc = -EINVAL;
break;