From 6894f013a71b1bcd09f46b8071f0c6b55fc58139 Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Fri, 21 Sep 2012 17:26:31 -0700 Subject: [SCSI] bfa: Add support for user to configure bandwidth on QoS priorities Made changes to provide an option for user to configure the bandwidth percentage for High/Medium/Low QoS priorities. Signed-off-by: Sudarsana Reddy Kalluru Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_svc.c | 46 ++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 44 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/bfa/bfa_svc.c') diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c index 309ab2ad3ce9..299c1c889b33 100644 --- a/drivers/scsi/bfa/bfa_svc.c +++ b/drivers/scsi/bfa/bfa_svc.c @@ -3067,6 +3067,7 @@ bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, */ do_gettimeofday(&tv); fcport->stats_reset_time = tv.tv_sec; + fcport->stats_dma_ready = BFA_FALSE; /* * initialize and set default configuration @@ -3077,6 +3078,9 @@ bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, port_cfg->maxfrsize = 0; port_cfg->trl_def_speed = BFA_PORT_SPEED_1GBPS; + port_cfg->qos_bw.high = BFA_QOS_BW_HIGH; + port_cfg->qos_bw.med = BFA_QOS_BW_MED; + port_cfg->qos_bw.low = BFA_QOS_BW_LOW; INIT_LIST_HEAD(&fcport->stats_pending_q); INIT_LIST_HEAD(&fcport->statsclr_pending_q); @@ -3596,6 +3600,7 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) case BFI_FCPORT_I2H_ENABLE_RSP: if (fcport->msgtag == i2hmsg.penable_rsp->msgtag) { + fcport->stats_dma_ready = BFA_TRUE; if (fcport->use_flash_cfg) { fcport->cfg = i2hmsg.penable_rsp->port_cfg; fcport->cfg.maxfrsize = @@ -3611,6 +3616,8 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) else fcport->trunk.attr.state = BFA_TRUNK_DISABLED; + fcport->qos_attr.qos_bw = + i2hmsg.penable_rsp->port_cfg.qos_bw; fcport->use_flash_cfg = BFA_FALSE; } @@ -3619,6 +3626,9 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) else fcport->qos_attr.state = BFA_QOS_DISABLED; + fcport->qos_attr.qos_bw_op = + i2hmsg.penable_rsp->port_cfg.qos_bw; + bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP); } break; @@ -3640,6 +3650,8 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKDOWN); } + fcport->qos_attr.qos_bw_op = + i2hmsg.event->link_state.qos_attr.qos_bw_op; break; case BFI_FCPORT_I2H_TRUNK_SCN: @@ -4035,8 +4047,9 @@ bfa_fcport_get_stats(struct bfa_s *bfa, struct bfa_cb_pending_q_s *cb) { struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); - if (bfa_ioc_is_disabled(&bfa->ioc)) - return BFA_STATUS_IOC_DISABLED; + if (!bfa_iocfc_is_operational(bfa) || + !fcport->stats_dma_ready) + return BFA_STATUS_IOC_NON_OP; if (!list_empty(&fcport->statsclr_pending_q)) return BFA_STATUS_DEVBUSY; @@ -4061,6 +4074,10 @@ bfa_fcport_clear_stats(struct bfa_s *bfa, struct bfa_cb_pending_q_s *cb) { struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + if (!bfa_iocfc_is_operational(bfa) || + !fcport->stats_dma_ready) + return BFA_STATUS_IOC_NON_OP; + if (!list_empty(&fcport->stats_pending_q)) return BFA_STATUS_DEVBUSY; @@ -4098,6 +4115,31 @@ bfa_fcport_is_dport(struct bfa_s *bfa) BFA_PORT_ST_DPORT); } +bfa_status_t +bfa_fcport_set_qos_bw(struct bfa_s *bfa, struct bfa_qos_bw_s *qos_bw) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + enum bfa_ioc_type_e ioc_type = bfa_get_type(bfa); + + bfa_trc(bfa, ioc_type); + + if ((qos_bw->high == 0) || (qos_bw->med == 0) || (qos_bw->low == 0)) + return BFA_STATUS_QOS_BW_INVALID; + + if ((qos_bw->high + qos_bw->med + qos_bw->low) != 100) + return BFA_STATUS_QOS_BW_INVALID; + + if ((qos_bw->med > qos_bw->high) || (qos_bw->low > qos_bw->med) || + (qos_bw->low > qos_bw->high)) + return BFA_STATUS_QOS_BW_INVALID; + + if ((ioc_type == BFA_IOC_TYPE_FC) && + (fcport->cfg.topology != BFA_PORT_TOPOLOGY_LOOP)) + fcport->cfg.qos_bw = *qos_bw; + + return BFA_STATUS_OK; +} + bfa_boolean_t bfa_fcport_is_ratelim(struct bfa_s *bfa) { -- cgit v1.2.1