From b704495c6707013806d1b66507a967896e2b4a7c Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Mon, 13 Dec 2010 16:17:42 -0800 Subject: [PATCH] [SCSI] bfa: direct attach mode fix. - Direct attach is not working due to the check of PID in fcxp_send request. - Added logic to set the lps->lp_pid with the PID assigned for n2n mode. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_fcs.h | 1 + drivers/scsi/bfa/bfa_fcs_lport.c | 3 + drivers/scsi/bfa/bfa_svc.c | 99 +++++++++++++++++++++++++++++++- drivers/scsi/bfa/bfa_svc.h | 1 + drivers/scsi/bfa/bfi_ms.h | 8 +++ 5 files changed, 111 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h index f0e652b50994..0fd63168573f 100644 --- a/drivers/scsi/bfa/bfa_fcs.h +++ b/drivers/scsi/bfa/bfa_fcs.h @@ -38,6 +38,7 @@ enum bfa_lps_event { BFA_LPS_SM_DELETE = 5, /* lps delete from user */ BFA_LPS_SM_OFFLINE = 6, /* Link is offline */ BFA_LPS_SM_RX_CVL = 7, /* Rx clear virtual link */ + BFA_LPS_SM_SET_N2N_PID = 8, /* Set assigned PID for n2n */ }; diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c index aa4516672eed..4f2e4e095d67 100644 --- a/drivers/scsi/bfa/bfa_fcs_lport.c +++ b/drivers/scsi/bfa/bfa_fcs_lport.c @@ -309,6 +309,7 @@ bfa_fcs_lport_plogi(struct bfa_fcs_lport_s *port, return; } port->pid = rx_fchs->d_id; + bfa_lps_set_n2n_pid(port->fabric->lps, rx_fchs->d_id); } /* @@ -323,6 +324,7 @@ bfa_fcs_lport_plogi(struct bfa_fcs_lport_s *port, (memcmp((void *)&bfa_fcs_lport_get_pwwn(port), (void *)&plogi->port_name, sizeof(wwn_t)) < 0)) { port->pid = rx_fchs->d_id; + bfa_lps_set_n2n_pid(port->fabric->lps, rx_fchs->d_id); rport->pid = rx_fchs->s_id; } bfa_fcs_rport_plogi(rport, rx_fchs, plogi); @@ -979,6 +981,7 @@ bfa_fcs_lport_n2n_online(struct bfa_fcs_lport_s *port) ((void *)&pcfg->pwwn, (void *)&n2n_port->rem_port_wwn, sizeof(wwn_t)) > 0) { port->pid = N2N_LOCAL_PID; + bfa_lps_set_n2n_pid(port->fabric->lps, N2N_LOCAL_PID); /* * First, check if we know the device by pwwn. */ diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c index 2666472d1429..b7df5534da85 100644 --- a/drivers/scsi/bfa/bfa_svc.c +++ b/drivers/scsi/bfa/bfa_svc.c @@ -131,6 +131,7 @@ static void bfa_lps_reqq_resume(void *lps_arg); static void bfa_lps_free(struct bfa_lps_s *lps); static void bfa_lps_send_login(struct bfa_lps_s *lps); static void bfa_lps_send_logout(struct bfa_lps_s *lps); +static void bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps); static void bfa_lps_login_comp(struct bfa_lps_s *lps); static void bfa_lps_logout_comp(struct bfa_lps_s *lps); static void bfa_lps_cvl_event(struct bfa_lps_s *lps); @@ -143,6 +144,8 @@ static void bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event); static void bfa_lps_sm_loginwait(struct bfa_lps_s *lps, enum bfa_lps_event event); static void bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event); +static void bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps, + enum bfa_lps_event event); static void bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event); static void bfa_lps_sm_logowait(struct bfa_lps_s *lps, enum bfa_lps_event event); @@ -1254,6 +1257,12 @@ bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event) else bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, BFA_PL_EID_LOGIN, 0, "FLOGI Accept"); + /* If N2N, send the assigned PID to FW */ + bfa_trc(lps->bfa, lps->fport); + bfa_trc(lps->bfa, lps->lp_pid); + + if (!lps->fport && lps->lp_pid) + bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID); } else { bfa_sm_set_state(lps, bfa_lps_sm_init); if (lps->fdisc) @@ -1272,6 +1281,11 @@ bfa_lps_sm_login(struct bfa_lps_s *lps, enum bfa_lps_event event) bfa_sm_set_state(lps, bfa_lps_sm_init); break; + case BFA_LPS_SM_SET_N2N_PID: + bfa_trc(lps->bfa, lps->fport); + bfa_trc(lps->bfa, lps->lp_pid); + break; + default: bfa_sm_fault(lps->bfa, event); } @@ -1340,6 +1354,14 @@ bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event) BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx"); break; + case BFA_LPS_SM_SET_N2N_PID: + if (bfa_reqq_full(lps->bfa, lps->reqq)) { + bfa_sm_set_state(lps, bfa_lps_sm_online_n2n_pid_wait); + bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe); + } else + bfa_lps_send_set_n2n_pid(lps); + break; + case BFA_LPS_SM_OFFLINE: case BFA_LPS_SM_DELETE: bfa_sm_set_state(lps, bfa_lps_sm_init); @@ -1350,6 +1372,48 @@ bfa_lps_sm_online(struct bfa_lps_s *lps, enum bfa_lps_event event) } } +/** + * login complete + */ +static void +bfa_lps_sm_online_n2n_pid_wait(struct bfa_lps_s *lps, enum bfa_lps_event event) +{ + bfa_trc(lps->bfa, lps->lp_tag); + bfa_trc(lps->bfa, event); + + switch (event) { + case BFA_LPS_SM_RESUME: + bfa_sm_set_state(lps, bfa_lps_sm_online); + bfa_lps_send_set_n2n_pid(lps); + break; + + case BFA_LPS_SM_LOGOUT: + bfa_sm_set_state(lps, bfa_lps_sm_logowait); + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGO, 0, "Logout"); + break; + + case BFA_LPS_SM_RX_CVL: + bfa_sm_set_state(lps, bfa_lps_sm_init); + bfa_reqq_wcancel(&lps->wqe); + + /* Let the vport module know about this event */ + bfa_lps_cvl_event(lps); + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_FIP_FCF_CVL, 0, "FCF Clear Virt. Link Rx"); + break; + + case BFA_LPS_SM_OFFLINE: + case BFA_LPS_SM_DELETE: + bfa_sm_set_state(lps, bfa_lps_sm_init); + bfa_reqq_wcancel(&lps->wqe); + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + /* * logout in progress - awaiting firmware response */ @@ -1498,8 +1562,9 @@ bfa_lps_login_rsp(struct bfa_s *bfa, struct bfi_lps_login_rsp_s *rsp) switch (rsp->status) { case BFA_STATUS_OK: lps->fport = rsp->f_port; + if (lps->fport) + lps->lp_pid = rsp->lp_pid; lps->npiv_en = rsp->npiv_en; - lps->lp_pid = rsp->lp_pid; lps->pr_bbcred = be16_to_cpu(rsp->bb_credit); lps->pr_pwwn = rsp->port_name; lps->pr_nwwn = rsp->node_name; @@ -1626,6 +1691,25 @@ bfa_lps_send_logout(struct bfa_lps_s *lps) bfa_reqq_produce(lps->bfa, lps->reqq); } +/** + * send n2n pid set request to firmware + */ +static void +bfa_lps_send_set_n2n_pid(struct bfa_lps_s *lps) +{ + struct bfi_lps_n2n_pid_req_s *m; + + m = bfa_reqq_next(lps->bfa, lps->reqq); + bfa_assert(m); + + bfi_h2i_set(m->mh, BFI_MC_LPS, BFI_LPS_H2I_N2N_PID_REQ, + bfa_lpuid(lps->bfa)); + + m->lp_tag = lps->lp_tag; + m->lp_pid = lps->lp_pid; + bfa_reqq_produce(lps->bfa, lps->reqq); +} + /* * Indirect login completion handler for non-fcs */ @@ -1846,6 +1930,19 @@ bfa_lps_get_base_pid(struct bfa_s *bfa) return BFA_LPS_FROM_TAG(mod, 0)->lp_pid; } +/** + * Set PID in case of n2n (which is assigned during PLOGI) + */ +void +bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, uint32_t n2n_pid) +{ + bfa_trc(lps->bfa, lps->lp_tag); + bfa_trc(lps->bfa, n2n_pid); + + lps->lp_pid = n2n_pid; + bfa_sm_send_event(lps, BFA_LPS_SM_SET_N2N_PID); +} + /* * LPS firmware message class handler. */ diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h index 36c81c74f04a..331ad992a581 100644 --- a/drivers/scsi/bfa/bfa_svc.h +++ b/drivers/scsi/bfa/bfa_svc.h @@ -610,6 +610,7 @@ void bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa, void bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz, wwn_t pwwn, wwn_t nwwn); void bfa_lps_fdisclogo(struct bfa_lps_s *lps); +void bfa_lps_set_n2n_pid(struct bfa_lps_s *lps, u32 n2n_pid); u32 bfa_lps_get_base_pid(struct bfa_s *bfa); u8 bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid); void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status); diff --git a/drivers/scsi/bfa/bfi_ms.h b/drivers/scsi/bfa/bfi_ms.h index 8f22ef1a6ed9..19e888a57555 100644 --- a/drivers/scsi/bfa/bfi_ms.h +++ b/drivers/scsi/bfa/bfi_ms.h @@ -342,6 +342,7 @@ struct bfi_uf_frm_rcvd_s { enum bfi_lps_h2i_msgs { BFI_LPS_H2I_LOGIN_REQ = 1, BFI_LPS_H2I_LOGOUT_REQ = 2, + BFI_LPS_H2I_N2N_PID_REQ = 3, }; enum bfi_lps_i2h_msgs { @@ -401,10 +402,17 @@ struct bfi_lps_cvl_event_s { u8 rsvd[3]; }; +struct bfi_lps_n2n_pid_req_s { + struct bfi_mhdr_s mh; /* common msg header */ + u8 lp_tag; + u32 lp_pid:24; +}; + union bfi_lps_h2i_msg_u { struct bfi_mhdr_s *msg; struct bfi_lps_login_req_s *login_req; struct bfi_lps_logout_req_s *logout_req; + struct bfi_lps_n2n_pid_req_s *n2n_pid_req; }; union bfi_lps_i2h_msg_u { -- 2.30.2