From 3ec4f2c8bff2568e5a51ba083db2c073321ca2c1 Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Wed, 20 Jul 2011 17:03:09 -0700 Subject: [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 Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_defs_svc.h | 1 + drivers/scsi/bfa/bfa_svc.c | 10 +++ drivers/scsi/bfa/bfad_bsg.c | 137 ++++++++++++++++++++++++++++++++++++++++ drivers/scsi/bfa/bfad_bsg.h | 20 ++++++ 4 files changed, 168 insertions(+) diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h index 21e3fbf0591b..263438bd8b6e 100644 --- a/drivers/scsi/bfa/bfa_defs_svc.h +++ b/drivers/scsi/bfa/bfa_defs_svc.h @@ -469,6 +469,7 @@ struct bfa_fw_stats_s { * QoS states */ enum bfa_qos_state { + BFA_QOS_DISABLED = 0, /* QoS is disabled */ BFA_QOS_ONLINE = 1, /* QoS is online */ BFA_QOS_OFFLINE = 2, /* QoS is offline */ }; 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; diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c index 55a9180b0a39..2109ed3769aa 100644 --- a/drivers/scsi/bfa/bfad_bsg.c +++ b/drivers/scsi/bfa/bfad_bsg.c @@ -2228,6 +2228,127 @@ bfad_iocmd_trunk_get_attr(struct bfad_s *bfad, void *cmd) 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 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd, 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; diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h index 22680452ee1b..3c0ce22ed47e 100644 --- a/drivers/scsi/bfa/bfad_bsg.h +++ b/drivers/scsi/bfa/bfad_bsg.h @@ -129,6 +129,12 @@ enum { IOCMD_TRUNK_ENABLE, IOCMD_TRUNK_DISABLE, IOCMD_TRUNK_GET_ATTR, + IOCMD_QOS_ENABLE, + IOCMD_QOS_DISABLE, + IOCMD_QOS_GET_ATTR, + IOCMD_QOS_GET_VC_ATTR, + IOCMD_QOS_GET_STATS, + IOCMD_QOS_RESET_STATS, }; struct bfa_bsg_gen_s { @@ -666,6 +672,20 @@ struct bfa_bsg_trunk_attr_s { struct bfa_trunk_attr_s attr; }; +struct bfa_bsg_qos_attr_s { + bfa_status_t status; + u16 bfad_num; + u16 rsvd; + struct bfa_qos_attr_s attr; +}; + +struct bfa_bsg_qos_vc_attr_s { + bfa_status_t status; + u16 bfad_num; + u16 rsvd; + struct bfa_qos_vc_attr_s attr; +}; + struct bfa_bsg_fcpt_s { bfa_status_t status; u16 vf_id; -- cgit v1.2.3-59-g8ed1b