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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
[SCSI] bfa: Defined a new LPS event to clear virtual link on a vport
Clear virtual links was not propagated upwards to bfa from fw. This resulted in HBA and switch being in an inconsistent state. So defined a new LPS event for clear virtual link on a vport, and also now clear virtual link on a baseport, is sent as a link down event from the fw. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
parent
4c147dd819
commit
5c1fb1d556
5 changed files with 97 additions and 3 deletions
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@ -49,7 +49,7 @@ static void bfa_lps_send_login(struct bfa_lps_s *lps);
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static void bfa_lps_send_logout(struct bfa_lps_s *lps);
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static void bfa_lps_login_comp(struct bfa_lps_s *lps);
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static void bfa_lps_logout_comp(struct bfa_lps_s *lps);
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static void bfa_lps_cvl_event(struct bfa_lps_s *lps);
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/**
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* lps_pvt BFA LPS private functions
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@ -62,6 +62,7 @@ enum bfa_lps_event {
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BFA_LPS_SM_RESUME = 4, /* space present in reqq queue */
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BFA_LPS_SM_DELETE = 5, /* lps delete from user */
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BFA_LPS_SM_OFFLINE = 6, /* Link is offline */
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BFA_LPS_SM_RX_CVL = 7, /* Rx clear virtual link */
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};
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static void bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event);
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@ -101,6 +102,7 @@ bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event)
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bfa_lps_free(lps);
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break;
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case BFA_LPS_SM_RX_CVL:
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case BFA_LPS_SM_OFFLINE:
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break;
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@ -162,6 +164,14 @@ bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event event)
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bfa_reqq_wcancel(&lps->wqe);
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break;
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case BFA_LPS_SM_RX_CVL:
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/*
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* Login was not even sent out; so when getting out
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* of this state, it will appear like a login retry
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* after Clear virtual link
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*/
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break;
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default:
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bfa_assert(0);
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}
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@ -187,6 +197,15 @@ bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event)
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}
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break;
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case BFA_LPS_SM_RX_CVL:
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bfa_sm_set_state(lps, bfa_lps_sm_init);
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/* Let the vport module know about this event */
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bfa_lps_cvl_event(lps);
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bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS,
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BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx");
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break;
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case BFA_LPS_SM_OFFLINE:
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case BFA_LPS_SM_DELETE:
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bfa_sm_set_state(lps, bfa_lps_sm_init);
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@ -395,6 +414,20 @@ bfa_lps_logout_rsp(struct bfa_s *bfa, struct bfi_lps_logout_rsp_s *rsp)
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bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP);
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}
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/**
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* Firmware received a Clear virtual link request (for FCoE)
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*/
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static void
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bfa_lps_rx_cvl_event(struct bfa_s *bfa, struct bfi_lps_cvl_event_s *cvl)
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{
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struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa);
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struct bfa_lps_s *lps;
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lps = BFA_LPS_FROM_TAG(mod, cvl->lp_tag);
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bfa_sm_send_event(lps, BFA_LPS_SM_RX_CVL);
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}
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/**
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* Space is available in request queue, resume queueing request to firmware.
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*/
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@ -531,7 +564,39 @@ bfa_lps_logout_comp(struct bfa_lps_s *lps)
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bfa_cb_lps_flogo_comp(lps->bfa->bfad, lps->uarg);
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}
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/**
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* Clear virtual link completion handler for non-fcs
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*/
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static void
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bfa_lps_cvl_event_cb(void *arg, bfa_boolean_t complete)
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{
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struct bfa_lps_s *lps = arg;
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if (!complete)
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return;
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/* Clear virtual link to base port will result in link down */
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if (lps->fdisc)
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bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
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}
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/**
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* Received Clear virtual link event --direct call for fcs,
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* queue for others
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*/
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static void
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bfa_lps_cvl_event(struct bfa_lps_s *lps)
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{
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if (!lps->bfa->fcs) {
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bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_cvl_event_cb,
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lps);
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return;
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}
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/* Clear virtual link to base port will result in link down */
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if (lps->fdisc)
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bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg);
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}
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/**
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* lps_public BFA LPS public functions
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@ -773,6 +838,10 @@ bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
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bfa_lps_logout_rsp(bfa, msg.logout_rsp);
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break;
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case BFI_LPS_H2I_CVL_EVENT:
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bfa_lps_rx_cvl_event(bfa, msg.cvl_event);
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break;
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default:
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bfa_trc(bfa, m->mhdr.msg_id);
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bfa_assert(0);
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@ -319,6 +319,7 @@ void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status);
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void bfa_cb_lps_flogo_comp(void *bfad, void *uarg);
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void bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status);
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void bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg);
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void bfa_cb_lps_cvl_event(void *bfad, void *uarg);
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#endif /* __BFA_SVC_H__ */
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@ -30,6 +30,7 @@ enum bfi_lps_h2i_msgs {
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enum bfi_lps_i2h_msgs {
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BFI_LPS_H2I_LOGIN_RSP = BFA_I2HM(1),
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BFI_LPS_H2I_LOGOUT_RSP = BFA_I2HM(2),
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BFI_LPS_H2I_CVL_EVENT = BFA_I2HM(3),
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};
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struct bfi_lps_login_req_s {
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@ -77,6 +78,12 @@ struct bfi_lps_logout_rsp_s {
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u8 rsvd[2];
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};
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struct bfi_lps_cvl_event_s {
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struct bfi_mhdr_s mh; /* common msg header */
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u8 lp_tag;
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u8 rsvd[3];
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};
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union bfi_lps_h2i_msg_u {
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struct bfi_mhdr_s *msg;
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struct bfi_lps_login_req_s *login_req;
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@ -87,6 +94,7 @@ union bfi_lps_i2h_msg_u {
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struct bfi_msg_s *msg;
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struct bfi_lps_login_rsp_s *login_rsp;
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struct bfi_lps_logout_rsp_s *logout_rsp;
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struct bfi_lps_cvl_event_s *cvl_event;
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};
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#pragma pack()
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@ -80,7 +80,8 @@ enum bfa_plog_mid {
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BFA_PL_MID_HAL_FCXP = 4,
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BFA_PL_MID_HAL_UF = 5,
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BFA_PL_MID_FCS = 6,
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BFA_PL_MID_MAX = 7
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BFA_PL_MID_LPS = 7,
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BFA_PL_MID_MAX = 8
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};
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#define BFA_PL_MID_STRLEN 8
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@ -118,7 +119,11 @@ enum bfa_plog_eid {
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BFA_PL_EID_RSCN = 17,
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BFA_PL_EID_DEBUG = 18,
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BFA_PL_EID_MISC = 19,
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BFA_PL_EID_MAX = 20
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BFA_PL_EID_FIP_FCF_DISC = 20,
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BFA_PL_EID_FIP_FCF_CVL = 21,
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BFA_PL_EID_LOGIN = 22,
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BFA_PL_EID_LOGO = 23,
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BFA_PL_EID_MAX = 24
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};
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#define BFA_PL_ENAME_STRLEN 8
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@ -888,4 +888,15 @@ bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg)
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bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
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}
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/**
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* Received clear virtual link
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*/
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void
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bfa_cb_lps_cvl_event(void *bfad, void *uarg)
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{
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struct bfa_fcs_vport_s *vport = uarg;
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/* Send an Offline followed by an ONLINE */
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bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_OFFLINE);
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bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_ONLINE);
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}
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