diff options
author | Krishna Gudipati <kgudipat@brocade.com> | 2012-09-21 17:23:59 -0700 |
---|---|---|
committer | James Bottomley <JBottomley@Parallels.com> | 2012-10-07 11:03:50 +0100 |
commit | bc0e2c2a97c1747ac0ade9b8620b14079e69fe3d (patch) | |
tree | 41fa46fba9a056b22f3b1212e076ec33529cab15 /drivers/scsi/bfa/bfa_svc.c | |
parent | 56d92aa5cf7c96c70f81d0350c94faf46a9fb76d (diff) | |
download | talos-obmc-linux-bc0e2c2a97c1747ac0ade9b8620b14079e69fe3d.tar.gz talos-obmc-linux-bc0e2c2a97c1747ac0ade9b8620b14079e69fe3d.zip |
[SCSI] bfa: Add support for FC Arbitrated Loop topology.
- Add private loop topology support at 2G/4G/8G speeds with following
limitations
1. No support for multiple initiators in the loop
2. No public loop support. If attached to a loop with an FL_Port,
device continues to work as a private NL_Port in the loop
3. No auto topology detection. User has to manually set the
configured topology to loop if attaching to loop.
- When loop topology is configured, enabling FC port features
QoS/Trunk/TRL are not allowed and vice versa.
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/bfa/bfa_svc.c')
-rw-r--r-- | drivers/scsi/bfa/bfa_svc.c | 93 |
1 files changed, 83 insertions, 10 deletions
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c index b2538d60db34..fcad11629f10 100644 --- a/drivers/scsi/bfa/bfa_svc.c +++ b/drivers/scsi/bfa/bfa_svc.c @@ -1244,6 +1244,12 @@ bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event) * Just ignore */ break; + case BFA_LPS_SM_SET_N2N_PID: + /* + * When topology is set to loop, bfa_lps_set_n2n_pid() sends + * this event. Ignore this event. + */ + break; default: bfa_sm_fault(lps->bfa, event); @@ -1261,6 +1267,7 @@ bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event) switch (event) { case BFA_LPS_SM_FWRSP: + case BFA_LPS_SM_OFFLINE: if (lps->status == BFA_STATUS_OK) { bfa_sm_set_state(lps, bfa_lps_sm_online); if (lps->fdisc) @@ -1289,7 +1296,6 @@ bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event) bfa_lps_login_comp(lps); break; - case BFA_LPS_SM_OFFLINE: case BFA_LPS_SM_DELETE: bfa_sm_set_state(lps, bfa_lps_sm_init); break; @@ -2250,11 +2256,11 @@ bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport, if (!bfa_ioc_get_fcmode(&fcport->bfa->ioc)) { bfa_trc(fcport->bfa, - pevent->link_state.vc_fcf.fcf.fipenabled); + pevent->link_state.attr.vc_fcf.fcf.fipenabled); bfa_trc(fcport->bfa, - pevent->link_state.vc_fcf.fcf.fipfailed); + pevent->link_state.attr.vc_fcf.fcf.fipfailed); - if (pevent->link_state.vc_fcf.fcf.fipfailed) + if (pevent->link_state.attr.vc_fcf.fcf.fipfailed) bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, BFA_PL_EID_FIP_FCF_DISC, 0, "FIP FCF Discovery Failed"); @@ -2996,6 +3002,21 @@ bfa_fcport_iocdisable(struct bfa_s *bfa) bfa_trunk_iocdisable(bfa); } +/* + * Update loop info in fcport for SCN online + */ +static void +bfa_fcport_update_loop_info(struct bfa_fcport_s *fcport, + struct bfa_fcport_loop_info_s *loop_info) +{ + fcport->myalpa = loop_info->myalpa; + fcport->alpabm_valid = + loop_info->alpabm_val; + memcpy(fcport->alpabm.alpa_bm, + loop_info->alpabm.alpa_bm, + sizeof(struct fc_alpabm_s)); +} + static void bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport) { @@ -3005,12 +3026,15 @@ bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport) fcport->speed = pevent->link_state.speed; fcport->topology = pevent->link_state.topology; - if (fcport->topology == BFA_PORT_TOPOLOGY_LOOP) - fcport->myalpa = 0; + if (fcport->topology == BFA_PORT_TOPOLOGY_LOOP) { + bfa_fcport_update_loop_info(fcport, + &pevent->link_state.attr.loop_info); + return; + } /* QoS Details */ fcport->qos_attr = pevent->link_state.qos_attr; - fcport->qos_vc_attr = pevent->link_state.vc_fcf.qos_vc_attr; + fcport->qos_vc_attr = pevent->link_state.attr.vc_fcf.qos_vc_attr; /* * update trunk state if applicable @@ -3019,7 +3043,8 @@ bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport) trunk->attr.state = BFA_TRUNK_DISABLED; /* update FCoE specific */ - fcport->fcoe_vlan = be16_to_cpu(pevent->link_state.vc_fcf.fcf.vlan); + fcport->fcoe_vlan = + be16_to_cpu(pevent->link_state.attr.vc_fcf.fcf.vlan); bfa_trc(fcport->bfa, fcport->speed); bfa_trc(fcport->bfa, fcport->topology); @@ -3609,6 +3634,9 @@ bfa_fcport_cfg_speed(struct bfa_s *bfa, enum bfa_port_speed speed) if (fcport->cfg.trunked == BFA_TRUE) return BFA_STATUS_TRUNK_ENABLED; + if ((fcport->cfg.topology == BFA_PORT_TOPOLOGY_LOOP) && + (speed == BFA_PORT_SPEED_16GBPS)) + return BFA_STATUS_UNSUPP_SPEED; if ((speed != BFA_PORT_SPEED_AUTO) && (speed > fcport->speed_sup)) { bfa_trc(bfa, fcport->speed_sup); return BFA_STATUS_UNSUPP_SPEED; @@ -3663,7 +3691,24 @@ bfa_fcport_cfg_topology(struct bfa_s *bfa, enum bfa_port_topology topology) switch (topology) { case BFA_PORT_TOPOLOGY_P2P: + break; + case BFA_PORT_TOPOLOGY_LOOP: + if ((bfa_fcport_is_qos_enabled(bfa) != BFA_FALSE) || + (fcport->qos_attr.state != BFA_QOS_DISABLED)) + return BFA_STATUS_ERROR_QOS_ENABLED; + if (fcport->cfg.ratelimit != BFA_FALSE) + return BFA_STATUS_ERROR_TRL_ENABLED; + if ((bfa_fcport_is_trunk_enabled(bfa) != BFA_FALSE) || + (fcport->trunk.attr.state != BFA_TRUNK_DISABLED)) + return BFA_STATUS_ERROR_TRUNK_ENABLED; + if ((bfa_fcport_get_speed(bfa) == BFA_PORT_SPEED_16GBPS) || + (fcport->cfg.speed == BFA_PORT_SPEED_16GBPS)) + return BFA_STATUS_UNSUPP_SPEED; + if (bfa_mfg_is_mezz(bfa->ioc.attr->card_type)) + return BFA_STATUS_LOOP_UNSUPP_MEZZ; + break; + case BFA_PORT_TOPOLOGY_AUTO: break; @@ -3686,6 +3731,17 @@ bfa_fcport_get_topology(struct bfa_s *bfa) return fcport->topology; } +/** + * Get config topology. + */ +enum bfa_port_topology +bfa_fcport_get_cfg_topology(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->cfg.topology; +} + bfa_status_t bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa) { @@ -3761,9 +3817,11 @@ bfa_fcport_get_maxfrsize(struct bfa_s *bfa) u8 bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa) { - struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + if (bfa_fcport_get_topology(bfa) != BFA_PORT_TOPOLOGY_LOOP) + return (BFA_FCPORT_MOD(bfa))->cfg.rx_bbcredit; - return fcport->cfg.rx_bbcredit; + else + return 0; } void @@ -4707,6 +4765,21 @@ bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *m) bfa_sm_send_event(rp, BFA_RPORT_SM_QOS_SCN); break; + case BFI_RPORT_I2H_LIP_SCN_ONLINE: + bfa_fcport_update_loop_info(BFA_FCPORT_MOD(bfa), + &msg.lip_scn->loop_info); + bfa_cb_rport_scn_online(bfa); + break; + + case BFI_RPORT_I2H_LIP_SCN_OFFLINE: + bfa_cb_rport_scn_offline(bfa); + break; + + case BFI_RPORT_I2H_NO_DEV: + rp = BFA_RPORT_FROM_TAG(bfa, msg.lip_scn->bfa_handle); + bfa_cb_rport_scn_no_dev(rp->rport_drv); + break; + default: bfa_trc(bfa, m->mhdr.msg_id); WARN_ON(1); |