diff options
Diffstat (limited to 'drivers/scsi/bfa/bfa_svc.c')
| -rw-r--r-- | drivers/scsi/bfa/bfa_svc.c | 5423 |
1 files changed, 5423 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c new file mode 100644 index 000000000000..aa1dc749b281 --- /dev/null +++ b/drivers/scsi/bfa/bfa_svc.c @@ -0,0 +1,5423 @@ +/* + * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. + * All rights reserved + * www.brocade.com + * + * Linux driver for Brocade Fibre Channel Host Bus Adapter. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License (GPL) Version 2 as + * published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include "bfa_os_inc.h" +#include "bfa_plog.h" +#include "bfa_cs.h" +#include "bfa_modules.h" +#include "bfad_drv.h" + +BFA_TRC_FILE(HAL, FCXP); +BFA_MODULE(fcxp); +BFA_MODULE(sgpg); +BFA_MODULE(lps); +BFA_MODULE(fcport); +BFA_MODULE(rport); +BFA_MODULE(uf); + +/** + * LPS related definitions + */ +#define BFA_LPS_MIN_LPORTS (1) +#define BFA_LPS_MAX_LPORTS (256) + +/* + * Maximum Vports supported per physical port or vf. + */ +#define BFA_LPS_MAX_VPORTS_SUPP_CB 255 +#define BFA_LPS_MAX_VPORTS_SUPP_CT 190 + +/** + * lps_pvt BFA LPS private functions + */ + +enum bfa_lps_event { + BFA_LPS_SM_LOGIN = 1, /* login request from user */ + BFA_LPS_SM_LOGOUT = 2, /* logout request from user */ + BFA_LPS_SM_FWRSP = 3, /* f/w response to login/logout */ + BFA_LPS_SM_RESUME = 4, /* space present in reqq queue */ + 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 */ +}; + +/** + * FC PORT related definitions + */ +/* + * The port is considered disabled if corresponding physical port or IOC are + * disabled explicitly + */ +#define BFA_PORT_IS_DISABLED(bfa) \ + ((bfa_fcport_is_disabled(bfa) == BFA_TRUE) || \ + (bfa_ioc_is_disabled(&bfa->ioc) == BFA_TRUE)) + + +/** + * BFA port state machine events + */ +enum bfa_fcport_sm_event { + BFA_FCPORT_SM_START = 1, /* start port state machine */ + BFA_FCPORT_SM_STOP = 2, /* stop port state machine */ + BFA_FCPORT_SM_ENABLE = 3, /* enable port */ + BFA_FCPORT_SM_DISABLE = 4, /* disable port state machine */ + BFA_FCPORT_SM_FWRSP = 5, /* firmware enable/disable rsp */ + BFA_FCPORT_SM_LINKUP = 6, /* firmware linkup event */ + BFA_FCPORT_SM_LINKDOWN = 7, /* firmware linkup down */ + BFA_FCPORT_SM_QRESUME = 8, /* CQ space available */ + BFA_FCPORT_SM_HWFAIL = 9, /* IOC h/w failure */ +}; + +/** + * BFA port link notification state machine events + */ + +enum bfa_fcport_ln_sm_event { + BFA_FCPORT_LN_SM_LINKUP = 1, /* linkup event */ + BFA_FCPORT_LN_SM_LINKDOWN = 2, /* linkdown event */ + BFA_FCPORT_LN_SM_NOTIFICATION = 3 /* done notification */ +}; + +/** + * RPORT related definitions + */ +#define bfa_rport_offline_cb(__rp) do { \ + if ((__rp)->bfa->fcs) \ + bfa_cb_rport_offline((__rp)->rport_drv); \ + else { \ + bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe, \ + __bfa_cb_rport_offline, (__rp)); \ + } \ +} while (0) + +#define bfa_rport_online_cb(__rp) do { \ + if ((__rp)->bfa->fcs) \ + bfa_cb_rport_online((__rp)->rport_drv); \ + else { \ + bfa_cb_queue((__rp)->bfa, &(__rp)->hcb_qe, \ + __bfa_cb_rport_online, (__rp)); \ + } \ +} while (0) + + +enum bfa_rport_event { + BFA_RPORT_SM_CREATE = 1, /* rport create event */ + BFA_RPORT_SM_DELETE = 2, /* deleting an existing rport */ + BFA_RPORT_SM_ONLINE = 3, /* rport is online */ + BFA_RPORT_SM_OFFLINE = 4, /* rport is offline */ + BFA_RPORT_SM_FWRSP = 5, /* firmware response */ + BFA_RPORT_SM_HWFAIL = 6, /* IOC h/w failure */ + BFA_RPORT_SM_QOS_SCN = 7, /* QoS SCN from firmware */ + BFA_RPORT_SM_SET_SPEED = 8, /* Set Rport Speed */ + BFA_RPORT_SM_QRESUME = 9, /* space in requeue queue */ +}; + +/** + * forward declarations FCXP related functions + */ +static void __bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete); +static void hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp, + struct bfi_fcxp_send_rsp_s *fcxp_rsp); +static void hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen, + struct bfa_fcxp_s *fcxp, struct fchs_s *fchs); +static void bfa_fcxp_qresume(void *cbarg); +static void bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, + struct bfi_fcxp_send_req_s *send_req); + +/** + * forward declarations for LPS functions + */ +static void bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, + u32 *dm_len); +static void bfa_lps_attach(struct bfa_s *bfa, void *bfad, + struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, + struct bfa_pcidev_s *pcidev); +static void bfa_lps_detach(struct bfa_s *bfa); +static void bfa_lps_start(struct bfa_s *bfa); +static void bfa_lps_stop(struct bfa_s *bfa); +static void bfa_lps_iocdisable(struct bfa_s *bfa); +static void bfa_lps_login_rsp(struct bfa_s *bfa, + struct bfi_lps_login_rsp_s *rsp); +static void bfa_lps_logout_rsp(struct bfa_s *bfa, + struct bfi_lps_logout_rsp_s *rsp); +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_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); + +/** + * forward declaration for LPS state machine + */ +static void bfa_lps_sm_init(struct bfa_lps_s *lps, enum bfa_lps_event event); +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_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); + +/** + * forward declaration for FC Port functions + */ +static bfa_boolean_t bfa_fcport_send_enable(struct bfa_fcport_s *fcport); +static bfa_boolean_t bfa_fcport_send_disable(struct bfa_fcport_s *fcport); +static void bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport); +static void bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport); +static void bfa_fcport_set_wwns(struct bfa_fcport_s *fcport); +static void __bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete); +static void bfa_fcport_scn(struct bfa_fcport_s *fcport, + enum bfa_port_linkstate event, bfa_boolean_t trunk); +static void bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln, + enum bfa_port_linkstate event); +static void __bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete); +static void bfa_fcport_stats_get_timeout(void *cbarg); +static void bfa_fcport_stats_clr_timeout(void *cbarg); +static void bfa_trunk_iocdisable(struct bfa_s *bfa); + +/** + * forward declaration for FC PORT state machine + */ +static void bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); +static void bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event); + +static void bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); +static void bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); +static void bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); +static void bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); +static void bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); +static void bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); +static void bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event); + +static struct bfa_sm_table_s hal_port_sm_table[] = { + {BFA_SM(bfa_fcport_sm_uninit), BFA_PORT_ST_UNINIT}, + {BFA_SM(bfa_fcport_sm_enabling_qwait), BFA_PORT_ST_ENABLING_QWAIT}, + {BFA_SM(bfa_fcport_sm_enabling), BFA_PORT_ST_ENABLING}, + {BFA_SM(bfa_fcport_sm_linkdown), BFA_PORT_ST_LINKDOWN}, + {BFA_SM(bfa_fcport_sm_linkup), BFA_PORT_ST_LINKUP}, + {BFA_SM(bfa_fcport_sm_disabling_qwait), BFA_PORT_ST_DISABLING_QWAIT}, + {BFA_SM(bfa_fcport_sm_toggling_qwait), BFA_PORT_ST_TOGGLING_QWAIT}, + {BFA_SM(bfa_fcport_sm_disabling), BFA_PORT_ST_DISABLING}, + {BFA_SM(bfa_fcport_sm_disabled), BFA_PORT_ST_DISABLED}, + {BFA_SM(bfa_fcport_sm_stopped), BFA_PORT_ST_STOPPED}, + {BFA_SM(bfa_fcport_sm_iocdown), BFA_PORT_ST_IOCDOWN}, + {BFA_SM(bfa_fcport_sm_iocfail), BFA_PORT_ST_IOCDOWN}, +}; + + +/** + * forward declaration for RPORT related functions + */ +static struct bfa_rport_s *bfa_rport_alloc(struct bfa_rport_mod_s *rp_mod); +static void bfa_rport_free(struct bfa_rport_s *rport); +static bfa_boolean_t bfa_rport_send_fwcreate(struct bfa_rport_s *rp); +static bfa_boolean_t bfa_rport_send_fwdelete(struct bfa_rport_s *rp); +static bfa_boolean_t bfa_rport_send_fwspeed(struct bfa_rport_s *rp); +static void __bfa_cb_rport_online(void *cbarg, + bfa_boolean_t complete); +static void __bfa_cb_rport_offline(void *cbarg, + bfa_boolean_t complete); + +/** + * forward declaration for RPORT state machine + */ +static void bfa_rport_sm_uninit(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_created(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_fwcreate(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_online(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_fwdelete(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_offline(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_deleting(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_offline_pending(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_delete_pending(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_iocdisable(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp, + enum bfa_rport_event event); +static void bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp, + enum bfa_rport_event event); + +/** + * PLOG related definitions + */ +static int +plkd_validate_logrec(struct bfa_plog_rec_s *pl_rec) +{ + if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) && + (pl_rec->log_type != BFA_PL_LOG_TYPE_STRING)) + return 1; + + if ((pl_rec->log_type != BFA_PL_LOG_TYPE_INT) && + (pl_rec->log_num_ints > BFA_PL_INT_LOG_SZ)) + return 1; + + return 0; +} + +static void +bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec) +{ + u16 tail; + struct bfa_plog_rec_s *pl_recp; + + if (plog->plog_enabled == 0) + return; + + if (plkd_validate_logrec(pl_rec)) { + bfa_assert(0); + return; + } + + tail = plog->tail; + + pl_recp = &(plog->plog_recs[tail]); + + bfa_os_memcpy(pl_recp, pl_rec, sizeof(struct bfa_plog_rec_s)); + + pl_recp->tv = bfa_os_get_log_time(); + BFA_PL_LOG_REC_INCR(plog->tail); + + if (plog->head == plog->tail) + BFA_PL_LOG_REC_INCR(plog->head); +} + +void +bfa_plog_init(struct bfa_plog_s *plog) +{ + bfa_os_memset((char *)plog, 0, sizeof(struct bfa_plog_s)); + + bfa_os_memcpy(plog->plog_sig, BFA_PL_SIG_STR, BFA_PL_SIG_LEN); + plog->head = plog->tail = 0; + plog->plog_enabled = 1; +} + +void +bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid, + enum bfa_plog_eid event, + u16 misc, char *log_str) +{ + struct bfa_plog_rec_s lp; + + if (plog->plog_enabled) { + bfa_os_memset(&lp, 0, sizeof(struct bfa_plog_rec_s)); + lp.mid = mid; + lp.eid = event; + lp.log_type = BFA_PL_LOG_TYPE_STRING; + lp.misc = misc; + strncpy(lp.log_entry.string_log, log_str, + BFA_PL_STRING_LOG_SZ - 1); + lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0'; + bfa_plog_add(plog, &lp); + } +} + +void +bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid, + enum bfa_plog_eid event, + u16 misc, u32 *intarr, u32 num_ints) +{ + struct bfa_plog_rec_s lp; + u32 i; + + if (num_ints > BFA_PL_INT_LOG_SZ) + num_ints = BFA_PL_INT_LOG_SZ; + + if (plog->plog_enabled) { + bfa_os_memset(&lp, 0, sizeof(struct bfa_plog_rec_s)); + lp.mid = mid; + lp.eid = event; + lp.log_type = BFA_PL_LOG_TYPE_INT; + lp.misc = misc; + + for (i = 0; i < num_ints; i++) + bfa_os_assign(lp.log_entry.int_log[i], + intarr[i]); + + lp.log_num_ints = (u8) num_ints; + + bfa_plog_add(plog, &lp); + } +} + +void +bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid, + enum bfa_plog_eid event, + u16 misc, struct fchs_s *fchdr) +{ + struct bfa_plog_rec_s lp; + u32 *tmp_int = (u32 *) fchdr; + u32 ints[BFA_PL_INT_LOG_SZ]; + + if (plog->plog_enabled) { + bfa_os_memset(&lp, 0, sizeof(struct bfa_plog_rec_s)); + + ints[0] = tmp_int[0]; + ints[1] = tmp_int[1]; + ints[2] = tmp_int[4]; + + bfa_plog_intarr(plog, mid, event, misc, ints, 3); + } +} + +void +bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid, + enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr, + u32 pld_w0) +{ + struct bfa_plog_rec_s lp; + u32 *tmp_int = (u32 *) fchdr; + u32 ints[BFA_PL_INT_LOG_SZ]; + + if (plog->plog_enabled) { + bfa_os_memset(&lp, 0, sizeof(struct bfa_plog_rec_s)); + + ints[0] = tmp_int[0]; + ints[1] = tmp_int[1]; + ints[2] = tmp_int[4]; + ints[3] = pld_w0; + + bfa_plog_intarr(plog, mid, event, misc, ints, 4); + } +} + +void +bfa_plog_clear(struct bfa_plog_s *plog) +{ + plog->head = plog->tail = 0; +} + +void +bfa_plog_enable(struct bfa_plog_s *plog) +{ + plog->plog_enabled = 1; +} + +void +bfa_plog_disable(struct bfa_plog_s *plog) +{ + plog->plog_enabled = 0; +} + +bfa_boolean_t +bfa_plog_get_setting(struct bfa_plog_s *plog) +{ + return (bfa_boolean_t)plog->plog_enabled; +} + +/** + * fcxp_pvt BFA FCXP private functions + */ + +static void +claim_fcxp_req_rsp_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi) +{ + u8 *dm_kva = NULL; + u64 dm_pa; + u32 buf_pool_sz; + + dm_kva = bfa_meminfo_dma_virt(mi); + dm_pa = bfa_meminfo_dma_phys(mi); + + buf_pool_sz = mod->req_pld_sz * mod->num_fcxps; + + /* + * Initialize the fcxp req payload list + */ + mod->req_pld_list_kva = dm_kva; + mod->req_pld_list_pa = dm_pa; + dm_kva += buf_pool_sz; + dm_pa += buf_pool_sz; + bfa_os_memset(mod->req_pld_list_kva, 0, buf_pool_sz); + + /* + * Initialize the fcxp rsp payload list + */ + buf_pool_sz = mod->rsp_pld_sz * mod->num_fcxps; + mod->rsp_pld_list_kva = dm_kva; + mod->rsp_pld_list_pa = dm_pa; + dm_kva += buf_pool_sz; + dm_pa += buf_pool_sz; + bfa_os_memset(mod->rsp_pld_list_kva, 0, buf_pool_sz); + + bfa_meminfo_dma_virt(mi) = dm_kva; + bfa_meminfo_dma_phys(mi) = dm_pa; +} + +static void +claim_fcxps_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi) +{ + u16 i; + struct bfa_fcxp_s *fcxp; + + fcxp = (struct bfa_fcxp_s *) bfa_meminfo_kva(mi); + bfa_os_memset(fcxp, 0, sizeof(struct bfa_fcxp_s) * mod->num_fcxps); + + INIT_LIST_HEAD(&mod->fcxp_free_q); + INIT_LIST_HEAD(&mod->fcxp_active_q); + + mod->fcxp_list = fcxp; + + for (i = 0; i < mod->num_fcxps; i++) { + fcxp->fcxp_mod = mod; + fcxp->fcxp_tag = i; + + list_add_tail(&fcxp->qe, &mod->fcxp_free_q); + bfa_reqq_winit(&fcxp->reqq_wqe, bfa_fcxp_qresume, fcxp); + fcxp->reqq_waiting = BFA_FALSE; + + fcxp = fcxp + 1; + } + + bfa_meminfo_kva(mi) = (void *)fcxp; +} + +static void +bfa_fcxp_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, + u32 *dm_len) +{ + u16 num_fcxp_reqs = cfg->fwcfg.num_fcxp_reqs; + + if (num_fcxp_reqs == 0) + return; + + /* + * Account for req/rsp payload + */ + *dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs; + if (cfg->drvcfg.min_cfg) + *dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs; + else + *dm_len += BFA_FCXP_MAX_LBUF_SZ * num_fcxp_reqs; + + /* + * Account for fcxp structs + */ + *ndm_len += sizeof(struct bfa_fcxp_s) * num_fcxp_reqs; +} + +static void +bfa_fcxp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev) +{ + struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa); + + bfa_os_memset(mod, 0, sizeof(struct bfa_fcxp_mod_s)); + mod->bfa = bfa; + mod->num_fcxps = cfg->fwcfg.num_fcxp_reqs; + + /** + * Initialize FCXP request and response payload sizes. + */ + mod->req_pld_sz = mod->rsp_pld_sz = BFA_FCXP_MAX_IBUF_SZ; + if (!cfg->drvcfg.min_cfg) + mod->rsp_pld_sz = BFA_FCXP_MAX_LBUF_SZ; + + INIT_LIST_HEAD(&mod->wait_q); + + claim_fcxp_req_rsp_mem(mod, meminfo); + claim_fcxps_mem(mod, meminfo); +} + +static void +bfa_fcxp_detach(struct bfa_s *bfa) +{ +} + +static void +bfa_fcxp_start(struct bfa_s *bfa) +{ +} + +static void +bfa_fcxp_stop(struct bfa_s *bfa) +{ +} + +static void +bfa_fcxp_iocdisable(struct bfa_s *bfa) +{ + struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa); + struct bfa_fcxp_s *fcxp; + struct list_head *qe, *qen; + + list_for_each_safe(qe, qen, &mod->fcxp_active_q) { + fcxp = (struct bfa_fcxp_s *) qe; + if (fcxp->caller == NULL) { + fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg, + BFA_STATUS_IOC_FAILURE, 0, 0, NULL); + bfa_fcxp_free(fcxp); + } else { + fcxp->rsp_status = BFA_STATUS_IOC_FAILURE; + bfa_cb_queue(bfa, &fcxp->hcb_qe, + __bfa_fcxp_send_cbfn, fcxp); + } + } +} + +static struct bfa_fcxp_s * +bfa_fcxp_get(struct bfa_fcxp_mod_s *fm) +{ + struct bfa_fcxp_s *fcxp; + + bfa_q_deq(&fm->fcxp_free_q, &fcxp); + + if (fcxp) + list_add_tail(&fcxp->qe, &fm->fcxp_active_q); + + return fcxp; +} + +static void +bfa_fcxp_init_reqrsp(struct bfa_fcxp_s *fcxp, + struct bfa_s *bfa, + u8 *use_ibuf, + u32 *nr_sgles, + bfa_fcxp_get_sgaddr_t *r_sga_cbfn, + bfa_fcxp_get_sglen_t *r_sglen_cbfn, + struct list_head *r_sgpg_q, + int n_sgles, + bfa_fcxp_get_sgaddr_t sga_cbfn, + bfa_fcxp_get_sglen_t sglen_cbfn) +{ + + bfa_assert(bfa != NULL); + + bfa_trc(bfa, fcxp->fcxp_tag); + + if (n_sgles == 0) { + *use_ibuf = 1; + } else { + bfa_assert(*sga_cbfn != NULL); + bfa_assert(*sglen_cbfn != NULL); + + *use_ibuf = 0; + *r_sga_cbfn = sga_cbfn; + *r_sglen_cbfn = sglen_cbfn; + + *nr_sgles = n_sgles; + + /* + * alloc required sgpgs + */ + if (n_sgles > BFI_SGE_INLINE) + bfa_assert(0); + } + +} + +static void +bfa_fcxp_init(struct bfa_fcxp_s *fcxp, + void *caller, struct bfa_s *bfa, int nreq_sgles, + int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn, + bfa_fcxp_get_sglen_t req_sglen_cbfn, + bfa_fcxp_get_sgaddr_t rsp_sga_cbfn, + bfa_fcxp_get_sglen_t rsp_sglen_cbfn) +{ + + bfa_assert(bfa != NULL); + + bfa_trc(bfa, fcxp->fcxp_tag); + + fcxp->caller = caller; + + bfa_fcxp_init_reqrsp(fcxp, bfa, + &fcxp->use_ireqbuf, &fcxp->nreq_sgles, &fcxp->req_sga_cbfn, + &fcxp->req_sglen_cbfn, &fcxp->req_sgpg_q, + nreq_sgles, req_sga_cbfn, req_sglen_cbfn); + + bfa_fcxp_init_reqrsp(fcxp, bfa, + &fcxp->use_irspbuf, &fcxp->nrsp_sgles, &fcxp->rsp_sga_cbfn, + &fcxp->rsp_sglen_cbfn, &fcxp->rsp_sgpg_q, + nrsp_sgles, rsp_sga_cbfn, rsp_sglen_cbfn); + +} + +static void +bfa_fcxp_put(struct bfa_fcxp_s *fcxp) +{ + struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod; + struct bfa_fcxp_wqe_s *wqe; + + bfa_q_deq(&mod->wait_q, &wqe); + if (wqe) { + bfa_trc(mod->bfa, fcxp->fcxp_tag); + + bfa_fcxp_init(fcxp, wqe->caller, wqe->bfa, wqe->nreq_sgles, + wqe->nrsp_sgles, wqe->req_sga_cbfn, + wqe->req_sglen_cbfn, wqe->rsp_sga_cbfn, + wqe->rsp_sglen_cbfn); + + wqe->alloc_cbfn(wqe->alloc_cbarg, fcxp); + return; + } + + bfa_assert(bfa_q_is_on_q(&mod->fcxp_active_q, fcxp)); + list_del(&fcxp->qe); + list_add_tail(&fcxp->qe, &mod->fcxp_free_q); +} + +static void +bfa_fcxp_null_comp(void *bfad_fcxp, struct bfa_fcxp_s *fcxp, void *cbarg, + bfa_status_t req_status, u32 rsp_len, + u32 resid_len, struct fchs_s *rsp_fchs) +{ + /* discarded fcxp completion */ +} + +static void +__bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_fcxp_s *fcxp = cbarg; + + if (complete) { + fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg, + fcxp->rsp_status, fcxp->rsp_len, + fcxp->residue_len, &fcxp->rsp_fchs); + } else { + bfa_fcxp_free(fcxp); + } +} + +static void +hal_fcxp_send_comp(struct bfa_s *bfa, struct bfi_fcxp_send_rsp_s *fcxp_rsp) +{ + struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa); + struct bfa_fcxp_s *fcxp; + u16 fcxp_tag = bfa_os_ntohs(fcxp_rsp->fcxp_tag); + + bfa_trc(bfa, fcxp_tag); + + fcxp_rsp->rsp_len = bfa_os_ntohl(fcxp_rsp->rsp_len); + + /** + * @todo f/w should not set residue to non-0 when everything + * is received. + */ + if (fcxp_rsp->req_status == BFA_STATUS_OK) + fcxp_rsp->residue_len = 0; + else + fcxp_rsp->residue_len = bfa_os_ntohl(fcxp_rsp->residue_len); + + fcxp = BFA_FCXP_FROM_TAG(mod, fcxp_tag); + + bfa_assert(fcxp->send_cbfn != NULL); + + hal_fcxp_rx_plog(mod->bfa, fcxp, fcxp_rsp); + + if (fcxp->send_cbfn != NULL) { + bfa_trc(mod->bfa, (NULL == fcxp->caller)); + if (fcxp->caller == NULL) { + fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg, + fcxp_rsp->req_status, fcxp_rsp->rsp_len, + fcxp_rsp->residue_len, &fcxp_rsp->fchs); + /* + * fcxp automatically freed on return from the callback + */ + bfa_fcxp_free(fcxp); + } else { + fcxp->rsp_status = fcxp_rsp->req_status; + fcxp->rsp_len = fcxp_rsp->rsp_len; + fcxp->residue_len = fcxp_rsp->residue_len; + fcxp->rsp_fchs = fcxp_rsp->fchs; + + bfa_cb_queue(bfa, &fcxp->hcb_qe, + __bfa_fcxp_send_cbfn, fcxp); + } + } else { + bfa_trc(bfa, (NULL == fcxp->send_cbfn)); + } +} + +static void +hal_fcxp_set_local_sges(struct bfi_sge_s *sge, u32 reqlen, u64 req_pa) +{ + union bfi_addr_u sga_zero = { {0} }; + + sge->sg_len = reqlen; + sge->flags = BFI_SGE_DATA_LAST; + bfa_dma_addr_set(sge[0].sga, req_pa); + bfa_sge_to_be(sge); + sge++; + + sge->sga = sga_zero; + sge->sg_len = reqlen; + sge->flags = BFI_SGE_PGDLEN; + bfa_sge_to_be(sge); +} + +static void +hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen, struct bfa_fcxp_s *fcxp, + struct fchs_s *fchs) +{ + /* + * TODO: TX ox_id + */ + if (reqlen > 0) { + if (fcxp->use_ireqbuf) { + u32 pld_w0 = + *((u32 *) BFA_FCXP_REQ_PLD(fcxp)); + + bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP, + BFA_PL_EID_TX, + reqlen + sizeof(struct fchs_s), fchs, + pld_w0); + } else { + bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, + BFA_PL_EID_TX, + reqlen + sizeof(struct fchs_s), + fchs); + } + } else { + bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_TX, + reqlen + sizeof(struct fchs_s), fchs); + } +} + +static void +hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp, + struct bfi_fcxp_send_rsp_s *fcxp_rsp) +{ + if (fcxp_rsp->rsp_len > 0) { + if (fcxp->use_irspbuf) { + u32 pld_w0 = + *((u32 *) BFA_FCXP_RSP_PLD(fcxp)); + + bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP, + BFA_PL_EID_RX, + (u16) fcxp_rsp->rsp_len, + &fcxp_rsp->fchs, pld_w0); + } else { + bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, + BFA_PL_EID_RX, + (u16) fcxp_rsp->rsp_len, + &fcxp_rsp->fchs); + } + } else { + bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_RX, + (u16) fcxp_rsp->rsp_len, &fcxp_rsp->fchs); + } +} + +/** + * Handler to resume sending fcxp when space in available in cpe queue. + */ +static void +bfa_fcxp_qresume(void *cbarg) +{ + struct bfa_fcxp_s *fcxp = cbarg; + struct bfa_s *bfa = fcxp->fcxp_mod->bfa; + struct bfi_fcxp_send_req_s *send_req; + + fcxp->reqq_waiting = BFA_FALSE; + send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP); + bfa_fcxp_queue(fcxp, send_req); +} + +/** + * Queue fcxp send request to foimrware. + */ +static void +bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, struct bfi_fcxp_send_req_s *send_req) +{ + struct bfa_s *bfa = fcxp->fcxp_mod->bfa; + struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info; + struct bfa_fcxp_rsp_info_s *rspi = &fcxp->rsp_info; + struct bfa_rport_s *rport = reqi->bfa_rport; + + bfi_h2i_set(send_req->mh, BFI_MC_FCXP, BFI_FCXP_H2I_SEND_REQ, + bfa_lpuid(bfa)); + + send_req->fcxp_tag = bfa_os_htons(fcxp->fcxp_tag); + if (rport) { + send_req->rport_fw_hndl = rport->fw_handle; + send_req->max_frmsz = bfa_os_htons(rport->rport_info.max_frmsz); + if (send_req->max_frmsz == 0) + send_req->max_frmsz = bfa_os_htons(FC_MAX_PDUSZ); + } else { + send_req->rport_fw_hndl = 0; + send_req->max_frmsz = bfa_os_htons(FC_MAX_PDUSZ); + } + + send_req->vf_id = bfa_os_htons(reqi->vf_id); + send_req->lp_tag = reqi->lp_tag; + send_req->class = reqi->class; + send_req->rsp_timeout = rspi->rsp_timeout; + send_req->cts = reqi->cts; + send_req->fchs = reqi->fchs; + + send_req->req_len = bfa_os_htonl(reqi->req_tot_len); + send_req->rsp_maxlen = bfa_os_htonl(rspi->rsp_maxlen); + + /* + * setup req sgles + */ + if (fcxp->use_ireqbuf == 1) { + hal_fcxp_set_local_sges(send_req->req_sge, reqi->req_tot_len, + BFA_FCXP_REQ_PLD_PA(fcxp)); + } else { + if (fcxp->nreq_sgles > 0) { + bfa_assert(fcxp->nreq_sgles == 1); + hal_fcxp_set_local_sges(send_req->req_sge, + reqi->req_tot_len, + fcxp->req_sga_cbfn(fcxp->caller, + 0)); + } else { + bfa_assert(reqi->req_tot_len == 0); + hal_fcxp_set_local_sges(send_req->rsp_sge, 0, 0); + } + } + + /* + * setup rsp sgles + */ + if (fcxp->use_irspbuf == 1) { + bfa_assert(rspi->rsp_maxlen <= BFA_FCXP_MAX_LBUF_SZ); + + hal_fcxp_set_local_sges(send_req->rsp_sge, rspi->rsp_maxlen, + BFA_FCXP_RSP_PLD_PA(fcxp)); + + } else { + if (fcxp->nrsp_sgles > 0) { + bfa_assert(fcxp->nrsp_sgles == 1); + hal_fcxp_set_local_sges(send_req->rsp_sge, + rspi->rsp_maxlen, + fcxp->rsp_sga_cbfn(fcxp->caller, + 0)); + } else { + bfa_assert(rspi->rsp_maxlen == 0); + hal_fcxp_set_local_sges(send_req->rsp_sge, 0, 0); + } + } + + hal_fcxp_tx_plog(bfa, reqi->req_tot_len, fcxp, &reqi->fchs); + + bfa_reqq_produce(bfa, BFA_REQQ_FCXP); + + bfa_trc(bfa, bfa_reqq_pi(bfa, BFA_REQQ_FCXP)); + bfa_trc(bfa, bfa_reqq_ci(bfa, BFA_REQQ_FCXP)); +} + +/** + * hal_fcxp_api BFA FCXP API + */ + +/** + * Allocate an FCXP instance to send a response or to send a request + * that has a response. Request/response buffers are allocated by caller. + * + * @param[in] bfa BFA bfa instance + * @param[in] nreq_sgles Number of SG elements required for request + * buffer. 0, if fcxp internal buffers are used. + * Use bfa_fcxp_get_reqbuf() to get the + * internal req buffer. + * @param[in] req_sgles SG elements describing request buffer. Will be + * copied in by BFA and hence can be freed on + * return from this function. + * @param[in] get_req_sga function ptr to be called to get a request SG + * Address (given the sge index). + * @param[in] get_req_sglen function ptr to be called to get a request SG + * len (given the sge index). + * @param[in] get_rsp_sga function ptr to be called to get a response SG + * Address (given the sge index). + * @param[in] get_rsp_sglen function ptr to be called to get a response SG + * len (given the sge index). + * + * @return FCXP instance. NULL on failure. + */ +struct bfa_fcxp_s * +bfa_fcxp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles, + int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn, + bfa_fcxp_get_sglen_t req_sglen_cbfn, + bfa_fcxp_get_sgaddr_t rsp_sga_cbfn, + bfa_fcxp_get_sglen_t rsp_sglen_cbfn) +{ + struct bfa_fcxp_s *fcxp = NULL; + + bfa_assert(bfa != NULL); + + fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa)); + if (fcxp == NULL) + return NULL; + + bfa_trc(bfa, fcxp->fcxp_tag); + + bfa_fcxp_init(fcxp, caller, bfa, nreq_sgles, nrsp_sgles, req_sga_cbfn, + req_sglen_cbfn, rsp_sga_cbfn, rsp_sglen_cbfn); + + return fcxp; +} + +/** + * Get the internal request buffer pointer + * + * @param[in] fcxp BFA fcxp pointer + * + * @return pointer to the internal request buffer + */ +void * +bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp) +{ + struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod; + void *reqbuf; + + bfa_assert(fcxp->use_ireqbuf == 1); + reqbuf = ((u8 *)mod->req_pld_list_kva) + + fcxp->fcxp_tag * mod->req_pld_sz; + return reqbuf; +} + +u32 +bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp) +{ + struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod; + + return mod->req_pld_sz; +} + +/** + * Get the internal response buffer pointer + * + * @param[in] fcxp BFA fcxp pointer + * + * @return pointer to the internal request buffer + */ +void * +bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp) +{ + struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod; + void *rspbuf; + + bfa_assert(fcxp->use_irspbuf == 1); + + rspbuf = ((u8 *)mod->rsp_pld_list_kva) + + fcxp->fcxp_tag * mod->rsp_pld_sz; + return rspbuf; +} + +/** + * Free the BFA FCXP + * + * @param[in] fcxp BFA fcxp pointer + * + * @return void + */ +void +bfa_fcxp_free(struct bfa_fcxp_s *fcxp) +{ + struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod; + + bfa_assert(fcxp != NULL); + bfa_trc(mod->bfa, fcxp->fcxp_tag); + bfa_fcxp_put(fcxp); +} + +/** + * Send a FCXP request + * + * @param[in] fcxp BFA fcxp pointer + * @param[in] rport BFA rport pointer. Could be left NULL for WKA rports + * @param[in] vf_id virtual Fabric ID + * @param[in] lp_tag lport tag + * @param[in] cts use Continous sequence + * @param[in] cos fc Class of Service + * @param[in] reqlen request length, does not include FCHS length + * @param[in] fchs fc Header Pointer. The header content will be copied + * in by BFA. + * + * @param[in] cbfn call back function to be called on receiving + * the response + * @param[in] cbarg arg for cbfn + * @param[in] rsp_timeout + * response timeout + * + * @return bfa_status_t + */ +void +bfa_fcxp_send(struct bfa_fcxp_s *fcxp, struct bfa_rport_s *rport, + u16 vf_id, u8 lp_tag, bfa_boolean_t cts, enum fc_cos cos, + u32 reqlen, struct fchs_s *fchs, bfa_cb_fcxp_send_t cbfn, + void *cbarg, u32 rsp_maxlen, u8 rsp_timeout) +{ + struct bfa_s *bfa = fcxp->fcxp_mod->bfa; + struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info; + struct bfa_fcxp_rsp_info_s *rspi = &fcxp->rsp_info; + struct bfi_fcxp_send_req_s *send_req; + + bfa_trc(bfa, fcxp->fcxp_tag); + + /** + * setup request/response info + */ + reqi->bfa_rport = rport; + reqi->vf_id = vf_id; + reqi->lp_tag = lp_tag; + reqi->class = cos; + rspi->rsp_timeout = rsp_timeout; + reqi->cts = cts; + reqi->fchs = *fchs; + reqi->req_tot_len = reqlen; + rspi->rsp_maxlen = rsp_maxlen; + fcxp->send_cbfn = cbfn ? cbfn : bfa_fcxp_null_comp; + fcxp->send_cbarg = cbarg; + + /** + * If no room in CPE queue, wait for space in request queue + */ + send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP); + if (!send_req) { + bfa_trc(bfa, fcxp->fcxp_tag); + fcxp->reqq_waiting = BFA_TRUE; + bfa_reqq_wait(bfa, BFA_REQQ_FCXP, &fcxp->reqq_wqe); + return; + } + + bfa_fcxp_queue(fcxp, send_req); +} + +/** + * Abort a BFA FCXP + * + * @param[in] fcxp BFA fcxp pointer + * + * @return void + */ +bfa_status_t +bfa_fcxp_abort(struct bfa_fcxp_s *fcxp) +{ + bfa_trc(fcxp->fcxp_mod->bfa, fcxp->fcxp_tag); + bfa_assert(0); + return BFA_STATUS_OK; +} + +void +bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe, + bfa_fcxp_alloc_cbfn_t alloc_cbfn, void *alloc_cbarg, + void *caller, int nreq_sgles, + int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn, + bfa_fcxp_get_sglen_t req_sglen_cbfn, + bfa_fcxp_get_sgaddr_t rsp_sga_cbfn, + bfa_fcxp_get_sglen_t rsp_sglen_cbfn) +{ + struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa); + + bfa_assert(list_empty(&mod->fcxp_free_q)); + + wqe->alloc_cbfn = alloc_cbfn; + wqe->alloc_cbarg = alloc_cbarg; + wqe->caller = caller; + wqe->bfa = bfa; + wqe->nreq_sgles = nreq_sgles; + wqe->nrsp_sgles = nrsp_sgles; + wqe->req_sga_cbfn = req_sga_cbfn; + wqe->req_sglen_cbfn = req_sglen_cbfn; + wqe->rsp_sga_cbfn = rsp_sga_cbfn; + wqe->rsp_sglen_cbfn = rsp_sglen_cbfn; + + list_add_tail(&wqe->qe, &mod->wait_q); +} + +void +bfa_fcxp_walloc_cancel(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe) +{ + struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa); + + bfa_assert(bfa_q_is_on_q(&mod->wait_q, wqe)); + list_del(&wqe->qe); +} + +void +bfa_fcxp_discard(struct bfa_fcxp_s *fcxp) +{ + /** + * If waiting for room in request queue, cancel reqq wait + * and free fcxp. + */ + if (fcxp->reqq_waiting) { + fcxp->reqq_waiting = BFA_FALSE; + bfa_reqq_wcancel(&fcxp->reqq_wqe); + bfa_fcxp_free(fcxp); + return; + } + + fcxp->send_cbfn = bfa_fcxp_null_comp; +} + + + +/** + * hal_fcxp_public BFA FCXP public functions + */ + +void +bfa_fcxp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) +{ + switch (msg->mhdr.msg_id) { + case BFI_FCXP_I2H_SEND_RSP: + hal_fcxp_send_comp(bfa, (struct bfi_fcxp_send_rsp_s *) msg); + break; + + default: + bfa_trc(bfa, msg->mhdr.msg_id); + bfa_assert(0); + } +} + +u32 +bfa_fcxp_get_maxrsp(struct bfa_s *bfa) +{ + struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa); + + return mod->rsp_pld_sz; +} + + +/** + * BFA LPS state machine functions + */ + +/** + * Init state -- no login + */ +static void +bfa_lps_sm_init(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_LOGIN: + if (bfa_reqq_full(lps->bfa, lps->reqq)) { + bfa_sm_set_state(lps, bfa_lps_sm_loginwait); + bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe); + } else { + bfa_sm_set_state(lps, bfa_lps_sm_login); + bfa_lps_send_login(lps); + } + + if (lps->fdisc) + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGIN, 0, "FDISC Request"); + else + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGIN, 0, "FLOGI Request"); + break; + + case BFA_LPS_SM_LOGOUT: + bfa_lps_logout_comp(lps); + break; + + case BFA_LPS_SM_DELETE: + bfa_lps_free(lps); + break; + + case BFA_LPS_SM_RX_CVL: + case BFA_LPS_SM_OFFLINE: + break; + + case BFA_LPS_SM_FWRSP: + /* + * Could happen when fabric detects loopback and discards + * the lps request. Fw will eventually sent out the timeout + * Just ignore + */ + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + +/** + * login is in progress -- awaiting response from firmware + */ +static void +bfa_lps_sm_login(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_FWRSP: + if (lps->status == BFA_STATUS_OK) { + bfa_sm_set_state(lps, bfa_lps_sm_online); + if (lps->fdisc) + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGIN, 0, "FDISC Accept"); + else + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGIN, 0, "FLOGI Accept"); + } else { + bfa_sm_set_state(lps, bfa_lps_sm_init); + if (lps->fdisc) + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGIN, 0, + "FDISC Fail (RJT or timeout)"); + else + bfa_plog_str(lps->bfa->plog, BFA_PL_MID_LPS, + BFA_PL_EID_LOGIN, 0, + "FLOGI Fail (RJT or timeout)"); + } + bfa_lps_login_comp(lps); + break; + + case BFA_LPS_SM_OFFLINE: + bfa_sm_set_state(lps, bfa_lps_sm_init); + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + +/** + * login pending - awaiting space in request queue + */ +static void +bfa_lps_sm_loginwait(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_login); + break; + + case BFA_LPS_SM_OFFLINE: + bfa_sm_set_state(lps, bfa_lps_sm_init); + bfa_reqq_wcancel(&lps->wqe); + break; + + case BFA_LPS_SM_RX_CVL: + /* + * Login was not even sent out; so when getting out + * of this state, it will appear like a login retry + * after Clear virtual link + */ + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + +/** + * login complete + */ +static void +bfa_lps_sm_online(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_LOGOUT: + if (bfa_reqq_full(lps->bfa, lps->reqq)) { + bfa_sm_set_state(lps, bfa_lps_sm_logowait); + bfa_reqq_wait(lps->bfa, lps->reqq, &lps->wqe); + } else { + bfa_sm_set_state(lps, bfa_lps_sm_logout); + bfa_lps_send_logout(lps); + } + 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); + + /* 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); + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + +/** + * logout in progress - awaiting firmware response + */ +static void +bfa_lps_sm_logout(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_FWRSP: + bfa_sm_set_state(lps, bfa_lps_sm_init); + bfa_lps_logout_comp(lps); + break; + + case BFA_LPS_SM_OFFLINE: + bfa_sm_set_state(lps, bfa_lps_sm_init); + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + +/** + * logout pending -- awaiting space in request queue + */ +static void +bfa_lps_sm_logowait(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_logout); + bfa_lps_send_logout(lps); + break; + + case BFA_LPS_SM_OFFLINE: + bfa_sm_set_state(lps, bfa_lps_sm_init); + bfa_reqq_wcancel(&lps->wqe); + break; + + default: + bfa_sm_fault(lps->bfa, event); + } +} + + + +/** + * lps_pvt BFA LPS private functions + */ + +/** + * return memory requirement + */ +static void +bfa_lps_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, + u32 *dm_len) +{ + if (cfg->drvcfg.min_cfg) + *ndm_len += sizeof(struct bfa_lps_s) * BFA_LPS_MIN_LPORTS; + else + *ndm_len += sizeof(struct bfa_lps_s) * BFA_LPS_MAX_LPORTS; +} + +/** + * bfa module attach at initialization time + */ +static void +bfa_lps_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps; + int i; + + bfa_os_memset(mod, 0, sizeof(struct bfa_lps_mod_s)); + mod->num_lps = BFA_LPS_MAX_LPORTS; + if (cfg->drvcfg.min_cfg) + mod->num_lps = BFA_LPS_MIN_LPORTS; + else + mod->num_lps = BFA_LPS_MAX_LPORTS; + mod->lps_arr = lps = (struct bfa_lps_s *) bfa_meminfo_kva(meminfo); + + bfa_meminfo_kva(meminfo) += mod->num_lps * sizeof(struct bfa_lps_s); + + INIT_LIST_HEAD(&mod->lps_free_q); + INIT_LIST_HEAD(&mod->lps_active_q); + + for (i = 0; i < mod->num_lps; i++, lps++) { + lps->bfa = bfa; + lps->lp_tag = (u8) i; + lps->reqq = BFA_REQQ_LPS; + bfa_reqq_winit(&lps->wqe, bfa_lps_reqq_resume, lps); + list_add_tail(&lps->qe, &mod->lps_free_q); + } +} + +static void +bfa_lps_detach(struct bfa_s *bfa) +{ +} + +static void +bfa_lps_start(struct bfa_s *bfa) +{ +} + +static void +bfa_lps_stop(struct bfa_s *bfa) +{ +} + +/** + * IOC in disabled state -- consider all lps offline + */ +static void +bfa_lps_iocdisable(struct bfa_s *bfa) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps; + struct list_head *qe, *qen; + + list_for_each_safe(qe, qen, &mod->lps_active_q) { + lps = (struct bfa_lps_s *) qe; + bfa_sm_send_event(lps, BFA_LPS_SM_OFFLINE); + } +} + +/** + * Firmware login response + */ +static void +bfa_lps_login_rsp(struct bfa_s *bfa, struct bfi_lps_login_rsp_s *rsp) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps; + + bfa_assert(rsp->lp_tag < mod->num_lps); + lps = BFA_LPS_FROM_TAG(mod, rsp->lp_tag); + + lps->status = rsp->status; + switch (rsp->status) { + case BFA_STATUS_OK: + lps->fport = rsp->f_port; + lps->npiv_en = rsp->npiv_en; + lps->lp_pid = rsp->lp_pid; + lps->pr_bbcred = bfa_os_ntohs(rsp->bb_credit); + lps->pr_pwwn = rsp->port_name; + lps->pr_nwwn = rsp->node_name; + lps->auth_req = rsp->auth_req; + lps->lp_mac = rsp->lp_mac; + lps->brcd_switch = rsp->brcd_switch; + lps->fcf_mac = rsp->fcf_mac; + + break; + + case BFA_STATUS_FABRIC_RJT: + lps->lsrjt_rsn = rsp->lsrjt_rsn; + lps->lsrjt_expl = rsp->lsrjt_expl; + + break; + + case BFA_STATUS_EPROTOCOL: + lps->ext_status = rsp->ext_status; + + break; + + default: + /* Nothing to do with other status */ + break; + } + + bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP); +} + +/** + * Firmware logout response + */ +static void +bfa_lps_logout_rsp(struct bfa_s *bfa, struct bfi_lps_logout_rsp_s *rsp) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps; + + bfa_assert(rsp->lp_tag < mod->num_lps); + lps = BFA_LPS_FROM_TAG(mod, rsp->lp_tag); + + bfa_sm_send_event(lps, BFA_LPS_SM_FWRSP); +} + +/** + * Firmware received a Clear virtual link request (for FCoE) + */ +static void +bfa_lps_rx_cvl_event(struct bfa_s *bfa, struct bfi_lps_cvl_event_s *cvl) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps; + + lps = BFA_LPS_FROM_TAG(mod, cvl->lp_tag); + + bfa_sm_send_event(lps, BFA_LPS_SM_RX_CVL); +} + +/** + * Space is available in request queue, resume queueing request to firmware. + */ +static void +bfa_lps_reqq_resume(void *lps_arg) +{ + struct bfa_lps_s *lps = lps_arg; + + bfa_sm_send_event(lps, BFA_LPS_SM_RESUME); +} + +/** + * lps is freed -- triggered by vport delete + */ +static void +bfa_lps_free(struct bfa_lps_s *lps) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(lps->bfa); + + lps->lp_pid = 0; + list_del(&lps->qe); + list_add_tail(&lps->qe, &mod->lps_free_q); +} + +/** + * send login request to firmware + */ +static void +bfa_lps_send_login(struct bfa_lps_s *lps) +{ + struct bfi_lps_login_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_LOGIN_REQ, + bfa_lpuid(lps->bfa)); + + m->lp_tag = lps->lp_tag; + m->alpa = lps->alpa; + m->pdu_size = bfa_os_htons(lps->pdusz); + m->pwwn = lps->pwwn; + m->nwwn = lps->nwwn; + m->fdisc = lps->fdisc; + m->auth_en = lps->auth_en; + + bfa_reqq_produce(lps->bfa, lps->reqq); +} + +/** + * send logout request to firmware + */ +static void +bfa_lps_send_logout(struct bfa_lps_s *lps) +{ + struct bfi_lps_logout_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_LOGOUT_REQ, + bfa_lpuid(lps->bfa)); + + m->lp_tag = lps->lp_tag; + m->port_name = lps->pwwn; + bfa_reqq_produce(lps->bfa, lps->reqq); +} + +/** + * Indirect login completion handler for non-fcs + */ +static void +bfa_lps_login_comp_cb(void *arg, bfa_boolean_t complete) +{ + struct bfa_lps_s *lps = arg; + + if (!complete) + return; + + if (lps->fdisc) + bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status); + else + bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status); +} + +/** + * Login completion handler -- direct call for fcs, queue for others + */ +static void +bfa_lps_login_comp(struct bfa_lps_s *lps) +{ + if (!lps->bfa->fcs) { + bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_login_comp_cb, + lps); + return; + } + + if (lps->fdisc) + bfa_cb_lps_fdisc_comp(lps->bfa->bfad, lps->uarg, lps->status); + else + bfa_cb_lps_flogi_comp(lps->bfa->bfad, lps->uarg, lps->status); +} + +/** + * Indirect logout completion handler for non-fcs + */ +static void +bfa_lps_logout_comp_cb(void *arg, bfa_boolean_t complete) +{ + struct bfa_lps_s *lps = arg; + + if (!complete) + return; + + if (lps->fdisc) + bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg); +} + +/** + * Logout completion handler -- direct call for fcs, queue for others + */ +static void +bfa_lps_logout_comp(struct bfa_lps_s *lps) +{ + if (!lps->bfa->fcs) { + bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_logout_comp_cb, + lps); + return; + } + if (lps->fdisc) + bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg); +} + +/** + * Clear virtual link completion handler for non-fcs + */ +static void +bfa_lps_cvl_event_cb(void *arg, bfa_boolean_t complete) +{ + struct bfa_lps_s *lps = arg; + + if (!complete) + return; + + /* Clear virtual link to base port will result in link down */ + if (lps->fdisc) + bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg); +} + +/** + * Received Clear virtual link event --direct call for fcs, + * queue for others + */ +static void +bfa_lps_cvl_event(struct bfa_lps_s *lps) +{ + if (!lps->bfa->fcs) { + bfa_cb_queue(lps->bfa, &lps->hcb_qe, bfa_lps_cvl_event_cb, + lps); + return; + } + + /* Clear virtual link to base port will result in link down */ + if (lps->fdisc) + bfa_cb_lps_cvl_event(lps->bfa->bfad, lps->uarg); +} + + + +/** + * lps_public BFA LPS public functions + */ + +u32 +bfa_lps_get_max_vport(struct bfa_s *bfa) +{ + if (bfa_ioc_devid(&bfa->ioc) == BFA_PCI_DEVICE_ID_CT) + return BFA_LPS_MAX_VPORTS_SUPP_CT; + else + return BFA_LPS_MAX_VPORTS_SUPP_CB; +} + +/** + * Allocate a lport srvice tag. + */ +struct bfa_lps_s * +bfa_lps_alloc(struct bfa_s *bfa) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps = NULL; + + bfa_q_deq(&mod->lps_free_q, &lps); + + if (lps == NULL) + return NULL; + + list_add_tail(&lps->qe, &mod->lps_active_q); + + bfa_sm_set_state(lps, bfa_lps_sm_init); + return lps; +} + +/** + * Free lport service tag. This can be called anytime after an alloc. + * No need to wait for any pending login/logout completions. + */ +void +bfa_lps_delete(struct bfa_lps_s *lps) +{ + bfa_sm_send_event(lps, BFA_LPS_SM_DELETE); +} + +/** + * Initiate a lport login. + */ +void +bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa, u16 pdusz, + wwn_t pwwn, wwn_t nwwn, bfa_boolean_t auth_en) +{ + lps->uarg = uarg; + lps->alpa = alpa; + lps->pdusz = pdusz; + lps->pwwn = pwwn; + lps->nwwn = nwwn; + lps->fdisc = BFA_FALSE; + lps->auth_en = auth_en; + bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN); +} + +/** + * Initiate a lport fdisc login. + */ +void +bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz, wwn_t pwwn, + wwn_t nwwn) +{ + lps->uarg = uarg; + lps->alpa = 0; + lps->pdusz = pdusz; + lps->pwwn = pwwn; + lps->nwwn = nwwn; + lps->fdisc = BFA_TRUE; + lps->auth_en = BFA_FALSE; + bfa_sm_send_event(lps, BFA_LPS_SM_LOGIN); +} + +/** + * Initiate a lport logout (flogi). + */ +void +bfa_lps_flogo(struct bfa_lps_s *lps) +{ + bfa_sm_send_event(lps, BFA_LPS_SM_LOGOUT); +} + +/** + * Initiate a lport FDSIC logout. + */ +void +bfa_lps_fdisclogo(struct bfa_lps_s *lps) +{ + bfa_sm_send_event(lps, BFA_LPS_SM_LOGOUT); +} + +/** + * Discard a pending login request -- should be called only for + * link down handling. + */ +void +bfa_lps_discard(struct bfa_lps_s *lps) +{ + bfa_sm_send_event(lps, BFA_LPS_SM_OFFLINE); +} + +/** + * Return lport services tag + */ +u8 +bfa_lps_get_tag(struct bfa_lps_s *lps) +{ + return lps->lp_tag; +} + +/** + * Return lport services tag given the pid + */ +u8 +bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + struct bfa_lps_s *lps; + int i; + + for (i = 0, lps = mod->lps_arr; i < mod->num_lps; i++, lps++) { + if (lps->lp_pid == pid) + return lps->lp_tag; + } + + /* Return base port tag anyway */ + return 0; +} + +/** + * return if fabric login indicates support for NPIV + */ +bfa_boolean_t +bfa_lps_is_npiv_en(struct bfa_lps_s *lps) +{ + return lps->npiv_en; +} + +/** + * Return TRUE if attached to F-Port, else return FALSE + */ +bfa_boolean_t +bfa_lps_is_fport(struct bfa_lps_s *lps) +{ + return lps->fport; +} + +/** + * Return TRUE if attached to a Brocade Fabric + */ +bfa_boolean_t +bfa_lps_is_brcd_fabric(struct bfa_lps_s *lps) +{ + return lps->brcd_switch; +} +/** + * return TRUE if authentication is required + */ +bfa_boolean_t +bfa_lps_is_authreq(struct bfa_lps_s *lps) +{ + return lps->auth_req; +} + +bfa_eproto_status_t +bfa_lps_get_extstatus(struct bfa_lps_s *lps) +{ + return lps->ext_status; +} + +/** + * return port id assigned to the lport + */ +u32 +bfa_lps_get_pid(struct bfa_lps_s *lps) +{ + return lps->lp_pid; +} + +/** + * return port id assigned to the base lport + */ +u32 +bfa_lps_get_base_pid(struct bfa_s *bfa) +{ + struct bfa_lps_mod_s *mod = BFA_LPS_MOD(bfa); + + return BFA_LPS_FROM_TAG(mod, 0)->lp_pid; +} + +/** + * Return bb_credit assigned in FLOGI response + */ +u16 +bfa_lps_get_peer_bbcredit(struct bfa_lps_s *lps) +{ + return lps->pr_bbcred; +} + +/** + * Return peer port name + */ +wwn_t +bfa_lps_get_peer_pwwn(struct bfa_lps_s *lps) +{ + return lps->pr_pwwn; +} + +/** + * Return peer node name + */ +wwn_t +bfa_lps_get_peer_nwwn(struct bfa_lps_s *lps) +{ + return lps->pr_nwwn; +} + +/** + * return reason code if login request is rejected + */ +u8 +bfa_lps_get_lsrjt_rsn(struct bfa_lps_s *lps) +{ + return lps->lsrjt_rsn; +} + +/** + * return explanation code if login request is rejected + */ +u8 +bfa_lps_get_lsrjt_expl(struct bfa_lps_s *lps) +{ + return lps->lsrjt_expl; +} + +/** + * Return fpma/spma MAC for lport + */ +mac_t +bfa_lps_get_lp_mac(struct bfa_lps_s *lps) +{ + return lps->lp_mac; +} + +/** + * LPS firmware message class handler. + */ +void +bfa_lps_isr(struct bfa_s *bfa, struct bfi_msg_s *m) +{ + union bfi_lps_i2h_msg_u msg; + + bfa_trc(bfa, m->mhdr.msg_id); + msg.msg = m; + + switch (m->mhdr.msg_id) { + case BFI_LPS_H2I_LOGIN_RSP: + bfa_lps_login_rsp(bfa, msg.login_rsp); + break; + + case BFI_LPS_H2I_LOGOUT_RSP: + bfa_lps_logout_rsp(bfa, msg.logout_rsp); + break; + + case BFI_LPS_H2I_CVL_EVENT: + bfa_lps_rx_cvl_event(bfa, msg.cvl_event); + break; + + default: + bfa_trc(bfa, m->mhdr.msg_id); + bfa_assert(0); + } +} + +/** + * FC PORT state machine functions + */ +static void +bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_START: + /** + * Start event after IOC is configured and BFA is started. + */ + if (bfa_fcport_send_enable(fcport)) { + bfa_trc(fcport->bfa, BFA_TRUE); + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + } else { + bfa_trc(fcport->bfa, BFA_FALSE); + bfa_sm_set_state(fcport, + bfa_fcport_sm_enabling_qwait); + } + break; + + case BFA_FCPORT_SM_ENABLE: + /** + * Port is persistently configured to be in enabled state. Do + * not change state. Port enabling is done when START event is + * received. + */ + break; + + case BFA_FCPORT_SM_DISABLE: + /** + * If a port is persistently configured to be disabled, the + * first event will a port disable request. + */ + bfa_sm_set_state(fcport, bfa_fcport_sm_disabled); + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + char pwwn_buf[BFA_STRING_32]; + struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad; + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_QRESUME: + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + bfa_fcport_send_enable(fcport); + break; + + case BFA_FCPORT_SM_STOP: + bfa_reqq_wcancel(&fcport->reqq_wait); + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + break; + + case BFA_FCPORT_SM_ENABLE: + /** + * Already enable is in progress. + */ + break; + + case BFA_FCPORT_SM_DISABLE: + /** + * Just send disable request to firmware when room becomes + * available in request queue. + */ + bfa_sm_set_state(fcport, bfa_fcport_sm_disabled); + bfa_reqq_wcancel(&fcport->reqq_wait); + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_DISABLE, 0, "Port Disable"); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port disabled: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_LINKUP: + case BFA_FCPORT_SM_LINKDOWN: + /** + * Possible to get link events when doing back-to-back + * enable/disables. + */ + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_reqq_wcancel(&fcport->reqq_wait); + bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + char pwwn_buf[BFA_STRING_32]; + struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad; + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_FWRSP: + case BFA_FCPORT_SM_LINKDOWN: + bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown); + break; + + case BFA_FCPORT_SM_LINKUP: + bfa_fcport_update_linkinfo(fcport); + bfa_sm_set_state(fcport, bfa_fcport_sm_linkup); + + bfa_assert(fcport->event_cbfn); + bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE); + break; + + case BFA_FCPORT_SM_ENABLE: + /** + * Already being enabled. + */ + break; + + case BFA_FCPORT_SM_DISABLE: + if (bfa_fcport_send_disable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_disabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_disabling_qwait); + + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_DISABLE, 0, "Port Disable"); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port disabled: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_linkdown(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event; + char pwwn_buf[BFA_STRING_32]; + struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad; + + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_LINKUP: + bfa_fcport_update_linkinfo(fcport); + bfa_sm_set_state(fcport, bfa_fcport_sm_linkup); + bfa_assert(fcport->event_cbfn); + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkup"); + if (!bfa_ioc_get_fcmode(&fcport->bfa->ioc)) { + + bfa_trc(fcport->bfa, + pevent->link_state.vc_fcf.fcf.fipenabled); + bfa_trc(fcport->bfa, + pevent->link_state.vc_fcf.fcf.fipfailed); + + if (pevent->link_state.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"); + else + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_FIP_FCF_DISC, 0, + "FIP FCF Discovered"); + } + + bfa_fcport_scn(fcport, BFA_PORT_LINKUP, BFA_FALSE); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port online: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_LINKDOWN: + /** + * Possible to get link down event. + */ + break; + + case BFA_FCPORT_SM_ENABLE: + /** + * Already enabled. + */ + break; + + case BFA_FCPORT_SM_DISABLE: + if (bfa_fcport_send_disable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_disabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_disabling_qwait); + + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_DISABLE, 0, "Port Disable"); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port disabled: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_linkup(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + char pwwn_buf[BFA_STRING_32]; + struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad; + + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_ENABLE: + /** + * Already enabled. + */ + break; + + case BFA_FCPORT_SM_DISABLE: + if (bfa_fcport_send_disable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_disabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_disabling_qwait); + + bfa_fcport_reset_linkinfo(fcport); + bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE); + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_DISABLE, 0, "Port Disable"); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port offline: WWN = %s\n", pwwn_buf); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port disabled: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_LINKDOWN: + bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown); + bfa_fcport_reset_linkinfo(fcport); + bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE); + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkdown"); + wwn2str(pwwn_buf, fcport->pwwn); + if (BFA_PORT_IS_DISABLED(fcport->bfa)) + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port offline: WWN = %s\n", pwwn_buf); + else + BFA_LOG(KERN_ERR, bfad, log_level, + "Base port (WWN = %s) " + "lost fabric connectivity\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + bfa_fcport_reset_linkinfo(fcport); + wwn2str(pwwn_buf, fcport->pwwn); + if (BFA_PORT_IS_DISABLED(fcport->bfa)) + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port offline: WWN = %s\n", pwwn_buf); + else + BFA_LOG(KERN_ERR, bfad, log_level, + "Base port (WWN = %s) " + "lost fabric connectivity\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown); + bfa_fcport_reset_linkinfo(fcport); + bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_FALSE); + wwn2str(pwwn_buf, fcport->pwwn); + if (BFA_PORT_IS_DISABLED(fcport->bfa)) + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port offline: WWN = %s\n", pwwn_buf); + else + BFA_LOG(KERN_ERR, bfad, log_level, + "Base port (WWN = %s) " + "lost fabric connectivity\n", pwwn_buf); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_disabling_qwait(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_QRESUME: + bfa_sm_set_state(fcport, bfa_fcport_sm_disabling); + bfa_fcport_send_disable(fcport); + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + bfa_reqq_wcancel(&fcport->reqq_wait); + break; + + case BFA_FCPORT_SM_ENABLE: + bfa_sm_set_state(fcport, bfa_fcport_sm_toggling_qwait); + break; + + case BFA_FCPORT_SM_DISABLE: + /** + * Already being disabled. + */ + break; + + case BFA_FCPORT_SM_LINKUP: + case BFA_FCPORT_SM_LINKDOWN: + /** + * Possible to get link events when doing back-to-back + * enable/disables. + */ + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail); + bfa_reqq_wcancel(&fcport->reqq_wait); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_toggling_qwait(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_QRESUME: + bfa_sm_set_state(fcport, bfa_fcport_sm_disabling); + bfa_fcport_send_disable(fcport); + if (bfa_fcport_send_enable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_enabling_qwait); + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + bfa_reqq_wcancel(&fcport->reqq_wait); + break; + + case BFA_FCPORT_SM_ENABLE: + break; + + case BFA_FCPORT_SM_DISABLE: + bfa_sm_set_state(fcport, bfa_fcport_sm_disabling_qwait); + break; + + case BFA_FCPORT_SM_LINKUP: + case BFA_FCPORT_SM_LINKDOWN: + /** + * Possible to get link events when doing back-to-back + * enable/disables. + */ + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail); + bfa_reqq_wcancel(&fcport->reqq_wait); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + char pwwn_buf[BFA_STRING_32]; + struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad; + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_FWRSP: + bfa_sm_set_state(fcport, bfa_fcport_sm_disabled); + break; + + case BFA_FCPORT_SM_DISABLE: + /** + * Already being disabled. + */ + break; + + case BFA_FCPORT_SM_ENABLE: + if (bfa_fcport_send_enable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_enabling_qwait); + + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_ENABLE, 0, "Port Enable"); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port enabled: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + break; + + case BFA_FCPORT_SM_LINKUP: + case BFA_FCPORT_SM_LINKDOWN: + /** + * Possible to get link events when doing back-to-back + * enable/disables. + */ + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + char pwwn_buf[BFA_STRING_32]; + struct bfad_s *bfad = (struct bfad_s *)fcport->bfa->bfad; + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_START: + /** + * Ignore start event for a port that is disabled. + */ + break; + + case BFA_FCPORT_SM_STOP: + bfa_sm_set_state(fcport, bfa_fcport_sm_stopped); + break; + + case BFA_FCPORT_SM_ENABLE: + if (bfa_fcport_send_enable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_enabling_qwait); + + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_PORT_ENABLE, 0, "Port Enable"); + wwn2str(pwwn_buf, fcport->pwwn); + BFA_LOG(KERN_INFO, bfad, log_level, + "Base port enabled: WWN = %s\n", pwwn_buf); + break; + + case BFA_FCPORT_SM_DISABLE: + /** + * Already disabled. + */ + break; + + case BFA_FCPORT_SM_HWFAIL: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail); + break; + + default: + bfa_sm_fault(fcport->bfa, event); + } +} + +static void +bfa_fcport_sm_stopped(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_START: + if (bfa_fcport_send_enable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_enabling_qwait); + break; + + default: + /** + * Ignore all other events. + */ + ; + } +} + +/** + * Port is enabled. IOC is down/failed. + */ +static void +bfa_fcport_sm_iocdown(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_START: + if (bfa_fcport_send_enable(fcport)) + bfa_sm_set_state(fcport, bfa_fcport_sm_enabling); + else + bfa_sm_set_state(fcport, + bfa_fcport_sm_enabling_qwait); + break; + + default: + /** + * Ignore all events. + */ + ; + } +} + +/** + * Port is disabled. IOC is down/failed. + */ +static void +bfa_fcport_sm_iocfail(struct bfa_fcport_s *fcport, + enum bfa_fcport_sm_event event) +{ + bfa_trc(fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_SM_START: + bfa_sm_set_state(fcport, bfa_fcport_sm_disabled); + break; + + case BFA_FCPORT_SM_ENABLE: + bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown); + break; + + default: + /** + * Ignore all events. + */ + ; + } +} + +/** + * Link state is down + */ +static void +bfa_fcport_ln_sm_dn(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKUP: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf); + bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + +/** + * Link state is waiting for down notification + */ +static void +bfa_fcport_ln_sm_dn_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKUP: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf); + break; + + case BFA_FCPORT_LN_SM_NOTIFICATION: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + +/** + * Link state is waiting for down notification and there is a pending up + */ +static void +bfa_fcport_ln_sm_dn_up_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKDOWN: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf); + break; + + case BFA_FCPORT_LN_SM_NOTIFICATION: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_nf); + bfa_fcport_queue_cb(ln, BFA_PORT_LINKUP); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + +/** + * Link state is up + */ +static void +bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKDOWN: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf); + bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + +/** + * Link state is waiting for up notification + */ +static void +bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKDOWN: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf); + break; + + case BFA_FCPORT_LN_SM_NOTIFICATION: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_up); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + +/** + * Link state is waiting for up notification and there is a pending down + */ +static void +bfa_fcport_ln_sm_up_dn_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKUP: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_up_nf); + break; + + case BFA_FCPORT_LN_SM_NOTIFICATION: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf); + bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + +/** + * Link state is waiting for up notification and there are pending down and up + */ +static void +bfa_fcport_ln_sm_up_dn_up_nf(struct bfa_fcport_ln_s *ln, + enum bfa_fcport_ln_sm_event event) +{ + bfa_trc(ln->fcport->bfa, event); + + switch (event) { + case BFA_FCPORT_LN_SM_LINKDOWN: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf); + break; + + case BFA_FCPORT_LN_SM_NOTIFICATION: + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_up_nf); + bfa_fcport_queue_cb(ln, BFA_PORT_LINKDOWN); + break; + + default: + bfa_sm_fault(ln->fcport->bfa, event); + } +} + + + +/** + * hal_port_private + */ + +static void +__bfa_cb_fcport_event(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_fcport_ln_s *ln = cbarg; + + if (complete) + ln->fcport->event_cbfn(ln->fcport->event_cbarg, ln->ln_event); + else + bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION); +} + +/** + * Send SCN notification to upper layers. + * trunk - false if caller is fcport to ignore fcport event in trunked mode + */ +static void +bfa_fcport_scn(struct bfa_fcport_s *fcport, enum bfa_port_linkstate event, + bfa_boolean_t trunk) +{ + if (fcport->cfg.trunked && !trunk) + return; + + switch (event) { + case BFA_PORT_LINKUP: + bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKUP); + break; + case BFA_PORT_LINKDOWN: + bfa_sm_send_event(&fcport->ln, BFA_FCPORT_LN_SM_LINKDOWN); + break; + default: + bfa_assert(0); + } +} + +static void +bfa_fcport_queue_cb(struct bfa_fcport_ln_s *ln, enum bfa_port_linkstate event) +{ + struct bfa_fcport_s *fcport = ln->fcport; + + if (fcport->bfa->fcs) { + fcport->event_cbfn(fcport->event_cbarg, event); + bfa_sm_send_event(ln, BFA_FCPORT_LN_SM_NOTIFICATION); + } else { + ln->ln_event = event; + bfa_cb_queue(fcport->bfa, &ln->ln_qe, + __bfa_cb_fcport_event, ln); + } +} + +#define FCPORT_STATS_DMA_SZ (BFA_ROUNDUP(sizeof(union bfa_fcport_stats_u), \ + BFA_CACHELINE_SZ)) + +static void +bfa_fcport_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, + u32 *dm_len) +{ + *dm_len += FCPORT_STATS_DMA_SZ; +} + +static void +bfa_fcport_qresume(void *cbarg) +{ + struct bfa_fcport_s *fcport = cbarg; + + bfa_sm_send_event(fcport, BFA_FCPORT_SM_QRESUME); +} + +static void +bfa_fcport_mem_claim(struct bfa_fcport_s *fcport, struct bfa_meminfo_s *meminfo) +{ + u8 *dm_kva; + u64 dm_pa; + + dm_kva = bfa_meminfo_dma_virt(meminfo); + dm_pa = bfa_meminfo_dma_phys(meminfo); + + fcport->stats_kva = dm_kva; + fcport->stats_pa = dm_pa; + fcport->stats = (union bfa_fcport_stats_u *) dm_kva; + + dm_kva += FCPORT_STATS_DMA_SZ; + dm_pa += FCPORT_STATS_DMA_SZ; + + bfa_meminfo_dma_virt(meminfo) = dm_kva; + bfa_meminfo_dma_phys(meminfo) = dm_pa; +} + +/** + * Memory initialization. + */ +static void +bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + struct bfa_port_cfg_s *port_cfg = &fcport->cfg; + struct bfa_fcport_ln_s *ln = &fcport->ln; + struct bfa_timeval_s tv; + + bfa_os_memset(fcport, 0, sizeof(struct bfa_fcport_s)); + fcport->bfa = bfa; + ln->fcport = fcport; + + bfa_fcport_mem_claim(fcport, meminfo); + + bfa_sm_set_state(fcport, bfa_fcport_sm_uninit); + bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn); + + /** + * initialize time stamp for stats reset + */ + bfa_os_gettimeofday(&tv); + fcport->stats_reset_time = tv.tv_sec; + + /** + * initialize and set default configuration + */ + port_cfg->topology = BFA_PORT_TOPOLOGY_P2P; + port_cfg->speed = BFA_PORT_SPEED_AUTO; + port_cfg->trunked = BFA_FALSE; + port_cfg->maxfrsize = 0; + + port_cfg->trl_def_speed = BFA_PORT_SPEED_1GBPS; + + bfa_reqq_winit(&fcport->reqq_wait, bfa_fcport_qresume, fcport); +} + +static void +bfa_fcport_detach(struct bfa_s *bfa) +{ +} + +/** + * Called when IOC is ready. + */ +static void +bfa_fcport_start(struct bfa_s *bfa) +{ + bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_START); +} + +/** + * Called before IOC is stopped. + */ +static void +bfa_fcport_stop(struct bfa_s *bfa) +{ + bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_STOP); + bfa_trunk_iocdisable(bfa); +} + +/** + * Called when IOC failure is detected. + */ +static void +bfa_fcport_iocdisable(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_sm_send_event(fcport, BFA_FCPORT_SM_HWFAIL); + bfa_trunk_iocdisable(bfa); +} + +static void +bfa_fcport_update_linkinfo(struct bfa_fcport_s *fcport) +{ + struct bfi_fcport_event_s *pevent = fcport->event_arg.i2hmsg.event; + struct bfa_fcport_trunk_s *trunk = &fcport->trunk; + + fcport->speed = pevent->link_state.speed; + fcport->topology = pevent->link_state.topology; + + if (fcport->topology == BFA_PORT_TOPOLOGY_LOOP) + fcport->myalpa = 0; + + /* QoS Details */ + bfa_os_assign(fcport->qos_attr, pevent->link_state.qos_attr); + bfa_os_assign(fcport->qos_vc_attr, + pevent->link_state.vc_fcf.qos_vc_attr); + + /** + * update trunk state if applicable + */ + if (!fcport->cfg.trunked) + trunk->attr.state = BFA_TRUNK_DISABLED; + + /* update FCoE specific */ + fcport->fcoe_vlan = bfa_os_ntohs(pevent->link_state.vc_fcf.fcf.vlan); + + bfa_trc(fcport->bfa, fcport->speed); + bfa_trc(fcport->bfa, fcport->topology); +} + +static void +bfa_fcport_reset_linkinfo(struct bfa_fcport_s *fcport) +{ + fcport->speed = BFA_PORT_SPEED_UNKNOWN; + fcport->topology = BFA_PORT_TOPOLOGY_NONE; +} + +/** + * Send port enable message to firmware. + */ +static bfa_boolean_t +bfa_fcport_send_enable(struct bfa_fcport_s *fcport) +{ + struct bfi_fcport_enable_req_s *m; + + /** + * Increment message tag before queue check, so that responses to old + * requests are discarded. + */ + fcport->msgtag++; + + /** + * check for room in queue to send request now + */ + m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT); + if (!m) { + bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT, + &fcport->reqq_wait); + return BFA_FALSE; + } + + bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_ENABLE_REQ, + bfa_lpuid(fcport->bfa)); + m->nwwn = fcport->nwwn; + m->pwwn = fcport->pwwn; + m->port_cfg = fcport->cfg; + m->msgtag = fcport->msgtag; + m->port_cfg.maxfrsize = bfa_os_htons(fcport->cfg.maxfrsize); + bfa_dma_be_addr_set(m->stats_dma_addr, fcport->stats_pa); + bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_lo); + bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_hi); + + /** + * queue I/O message to firmware + */ + bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT); + return BFA_TRUE; +} + +/** + * Send port disable message to firmware. + */ +static bfa_boolean_t +bfa_fcport_send_disable(struct bfa_fcport_s *fcport) +{ + struct bfi_fcport_req_s *m; + + /** + * Increment message tag before queue check, so that responses to old + * requests are discarded. + */ + fcport->msgtag++; + + /** + * check for room in queue to send request now + */ + m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT); + if (!m) { + bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT, + &fcport->reqq_wait); + return BFA_FALSE; + } + + bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_DISABLE_REQ, + bfa_lpuid(fcport->bfa)); + m->msgtag = fcport->msgtag; + + /** + * queue I/O message to firmware + */ + bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT); + + return BFA_TRUE; +} + +static void +bfa_fcport_set_wwns(struct bfa_fcport_s *fcport) +{ + fcport->pwwn = bfa_ioc_get_pwwn(&fcport->bfa->ioc); + fcport->nwwn = bfa_ioc_get_nwwn(&fcport->bfa->ioc); + + bfa_trc(fcport->bfa, fcport->pwwn); + bfa_trc(fcport->bfa, fcport->nwwn); +} + +static void +bfa_fcport_send_txcredit(void *port_cbarg) +{ + + struct bfa_fcport_s *fcport = port_cbarg; + struct bfi_fcport_set_svc_params_req_s *m; + + /** + * check for room in queue to send request now + */ + m = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT); + if (!m) { + bfa_trc(fcport->bfa, fcport->cfg.tx_bbcredit); + return; + } + + bfi_h2i_set(m->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_SET_SVC_PARAMS_REQ, + bfa_lpuid(fcport->bfa)); + m->tx_bbcredit = bfa_os_htons((u16)fcport->cfg.tx_bbcredit); + + /** + * queue I/O message to firmware + */ + bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT); +} + +static void +bfa_fcport_qos_stats_swap(struct bfa_qos_stats_s *d, + struct bfa_qos_stats_s *s) +{ + u32 *dip = (u32 *) d; + u32 *sip = (u32 *) s; + int i; + + /* Now swap the 32 bit fields */ + for (i = 0; i < (sizeof(struct bfa_qos_stats_s)/sizeof(u32)); ++i) + dip[i] = bfa_os_ntohl(sip[i]); +} + +static void +bfa_fcport_fcoe_stats_swap(struct bfa_fcoe_stats_s *d, + struct bfa_fcoe_stats_s *s) +{ + u32 *dip = (u32 *) d; + u32 *sip = (u32 *) s; + int i; + + for (i = 0; i < ((sizeof(struct bfa_fcoe_stats_s))/sizeof(u32)); + i = i + 2) { +#ifdef __BIGENDIAN + dip[i] = bfa_os_ntohl(sip[i]); + dip[i + 1] = bfa_os_ntohl(sip[i + 1]); +#else + dip[i] = bfa_os_ntohl(sip[i + 1]); + dip[i + 1] = bfa_os_ntohl(sip[i]); +#endif + } +} + +static void +__bfa_cb_fcport_stats_get(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_fcport_s *fcport = cbarg; + + if (complete) { + if (fcport->stats_status == BFA_STATUS_OK) { + struct bfa_timeval_s tv; + + /* Swap FC QoS or FCoE stats */ + if (bfa_ioc_get_fcmode(&fcport->bfa->ioc)) { + bfa_fcport_qos_stats_swap( + &fcport->stats_ret->fcqos, + &fcport->stats->fcqos); + } else { + bfa_fcport_fcoe_stats_swap( + &fcport->stats_ret->fcoe, + &fcport->stats->fcoe); + + bfa_os_gettimeofday(&tv); + fcport->stats_ret->fcoe.secs_reset = + tv.tv_sec - fcport->stats_reset_time; + } + } + fcport->stats_cbfn(fcport->stats_cbarg, fcport->stats_status); + } else { + fcport->stats_busy = BFA_FALSE; + fcport->stats_status = BFA_STATUS_OK; + } +} + +static void +bfa_fcport_stats_get_timeout(void *cbarg) +{ + struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg; + + bfa_trc(fcport->bfa, fcport->stats_qfull); + + if (fcport->stats_qfull) { + bfa_reqq_wcancel(&fcport->stats_reqq_wait); + fcport->stats_qfull = BFA_FALSE; + } + + fcport->stats_status = BFA_STATUS_ETIMER; + bfa_cb_queue(fcport->bfa, &fcport->hcb_qe, __bfa_cb_fcport_stats_get, + fcport); +} + +static void +bfa_fcport_send_stats_get(void *cbarg) +{ + struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg; + struct bfi_fcport_req_s *msg; + + msg = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT); + + if (!msg) { + fcport->stats_qfull = BFA_TRUE; + bfa_reqq_winit(&fcport->stats_reqq_wait, + bfa_fcport_send_stats_get, fcport); + bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT, + &fcport->stats_reqq_wait); + return; + } + fcport->stats_qfull = BFA_FALSE; + + bfa_os_memset(msg, 0, sizeof(struct bfi_fcport_req_s)); + bfi_h2i_set(msg->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_STATS_GET_REQ, + bfa_lpuid(fcport->bfa)); + bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT); +} + +static void +__bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_fcport_s *fcport = cbarg; + + if (complete) { + struct bfa_timeval_s tv; + + /** + * re-initialize time stamp for stats reset + */ + bfa_os_gettimeofday(&tv); + fcport->stats_reset_time = tv.tv_sec; + + fcport->stats_cbfn(fcport->stats_cbarg, fcport->stats_status); + } else { + fcport->stats_busy = BFA_FALSE; + fcport->stats_status = BFA_STATUS_OK; + } +} + +static void +bfa_fcport_stats_clr_timeout(void *cbarg) +{ + struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg; + + bfa_trc(fcport->bfa, fcport->stats_qfull); + + if (fcport->stats_qfull) { + bfa_reqq_wcancel(&fcport->stats_reqq_wait); + fcport->stats_qfull = BFA_FALSE; + } + + fcport->stats_status = BFA_STATUS_ETIMER; + bfa_cb_queue(fcport->bfa, &fcport->hcb_qe, + __bfa_cb_fcport_stats_clr, fcport); +} + +static void +bfa_fcport_send_stats_clear(void *cbarg) +{ + struct bfa_fcport_s *fcport = (struct bfa_fcport_s *) cbarg; + struct bfi_fcport_req_s *msg; + + msg = bfa_reqq_next(fcport->bfa, BFA_REQQ_PORT); + + if (!msg) { + fcport->stats_qfull = BFA_TRUE; + bfa_reqq_winit(&fcport->stats_reqq_wait, + bfa_fcport_send_stats_clear, fcport); + bfa_reqq_wait(fcport->bfa, BFA_REQQ_PORT, + &fcport->stats_reqq_wait); + return; + } + fcport->stats_qfull = BFA_FALSE; + + bfa_os_memset(msg, 0, sizeof(struct bfi_fcport_req_s)); + bfi_h2i_set(msg->mh, BFI_MC_FCPORT, BFI_FCPORT_H2I_STATS_CLEAR_REQ, + bfa_lpuid(fcport->bfa)); + bfa_reqq_produce(fcport->bfa, BFA_REQQ_PORT); +} + +/** + * Handle trunk SCN event from firmware. + */ +static void +bfa_trunk_scn(struct bfa_fcport_s *fcport, struct bfi_fcport_trunk_scn_s *scn) +{ + struct bfa_fcport_trunk_s *trunk = &fcport->trunk; + struct bfi_fcport_trunk_link_s *tlink; + struct bfa_trunk_link_attr_s *lattr; + enum bfa_trunk_state state_prev; + int i; + int link_bm = 0; + + bfa_trc(fcport->bfa, fcport->cfg.trunked); + bfa_assert(scn->trunk_state == BFA_TRUNK_ONLINE || + scn->trunk_state == BFA_TRUNK_OFFLINE); + + bfa_trc(fcport->bfa, trunk->attr.state); + bfa_trc(fcport->bfa, scn->trunk_state); + bfa_trc(fcport->bfa, scn->trunk_speed); + + /** + * Save off new state for trunk attribute query + */ + state_prev = trunk->attr.state; + if (fcport->cfg.trunked && (trunk->attr.state != BFA_TRUNK_DISABLED)) + trunk->attr.state = scn->trunk_state; + trunk->attr.speed = scn->trunk_speed; + for (i = 0; i < BFA_TRUNK_MAX_PORTS; i++) { + lattr = &trunk->attr.link_attr[i]; + tlink = &scn->tlink[i]; + + lattr->link_state = tlink->state; + lattr->trunk_wwn = tlink->trunk_wwn; + lattr->fctl = tlink->fctl; + lattr->speed = tlink->speed; + lattr->deskew = bfa_os_ntohl(tlink->deskew); + + if (tlink->state == BFA_TRUNK_LINK_STATE_UP) { + fcport->speed = tlink->speed; + fcport->topology = BFA_PORT_TOPOLOGY_P2P; + link_bm |= 1 << i; + } + + bfa_trc(fcport->bfa, lattr->link_state); + bfa_trc(fcport->bfa, lattr->trunk_wwn); + bfa_trc(fcport->bfa, lattr->fctl); + bfa_trc(fcport->bfa, lattr->speed); + bfa_trc(fcport->bfa, lattr->deskew); + } + + switch (link_bm) { + case 3: + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(0,1)"); + break; + case 2: + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(-,1)"); + break; + case 1: + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_TRUNK_SCN, 0, "Trunk up(0,-)"); + break; + default: + bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL, + BFA_PL_EID_TRUNK_SCN, 0, "Trunk down"); + } + + /** + * Notify upper layers if trunk state changed. + */ + if ((state_prev != trunk->attr.state) || + (scn->trunk_state == BFA_TRUNK_OFFLINE)) { + bfa_fcport_scn(fcport, (scn->trunk_state == BFA_TRUNK_ONLINE) ? + BFA_PORT_LINKUP : BFA_PORT_LINKDOWN, BFA_TRUE); + } +} + +static void +bfa_trunk_iocdisable(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + int i = 0; + + /** + * In trunked mode, notify upper layers that link is down + */ + if (fcport->cfg.trunked) { + if (fcport->trunk.attr.state == BFA_TRUNK_ONLINE) + bfa_fcport_scn(fcport, BFA_PORT_LINKDOWN, BFA_TRUE); + + fcport->trunk.attr.state = BFA_TRUNK_OFFLINE; + fcport->trunk.attr.speed = BFA_PORT_SPEED_UNKNOWN; + for (i = 0; i < BFA_TRUNK_MAX_PORTS; i++) { + fcport->trunk.attr.link_attr[i].trunk_wwn = 0; + fcport->trunk.attr.link_attr[i].fctl = + BFA_TRUNK_LINK_FCTL_NORMAL; + fcport->trunk.attr.link_attr[i].link_state = + BFA_TRUNK_LINK_STATE_DN_LINKDN; + fcport->trunk.attr.link_attr[i].speed = + BFA_PORT_SPEED_UNKNOWN; + fcport->trunk.attr.link_attr[i].deskew = 0; + } + } +} + + + +/** + * hal_port_public + */ + +/** + * Called to initialize port attributes + */ +void +bfa_fcport_init(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + /** + * Initialize port attributes from IOC hardware data. + */ + bfa_fcport_set_wwns(fcport); + if (fcport->cfg.maxfrsize == 0) + fcport->cfg.maxfrsize = bfa_ioc_maxfrsize(&bfa->ioc); + fcport->cfg.rx_bbcredit = bfa_ioc_rx_bbcredit(&bfa->ioc); + fcport->speed_sup = bfa_ioc_speed_sup(&bfa->ioc); + + bfa_assert(fcport->cfg.maxfrsize); + bfa_assert(fcport->cfg.rx_bbcredit); + bfa_assert(fcport->speed_sup); +} + +/** + * Firmware message handler. + */ +void +bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + union bfi_fcport_i2h_msg_u i2hmsg; + + i2hmsg.msg = msg; + fcport->event_arg.i2hmsg = i2hmsg; + + bfa_trc(bfa, msg->mhdr.msg_id); + bfa_trc(bfa, bfa_sm_to_state(hal_port_sm_table, fcport->sm)); + + switch (msg->mhdr.msg_id) { + case BFI_FCPORT_I2H_ENABLE_RSP: + if (fcport->msgtag == i2hmsg.penable_rsp->msgtag) + bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP); + break; + + case BFI_FCPORT_I2H_DISABLE_RSP: + if (fcport->msgtag == i2hmsg.penable_rsp->msgtag) + bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP); + break; + + case BFI_FCPORT_I2H_EVENT: + if (i2hmsg.event->link_state.linkstate == BFA_PORT_LINKUP) + bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKUP); + else + bfa_sm_send_event(fcport, BFA_FCPORT_SM_LINKDOWN); + break; + + case BFI_FCPORT_I2H_TRUNK_SCN: + bfa_trunk_scn(fcport, i2hmsg.trunk_scn); + break; + + case BFI_FCPORT_I2H_STATS_GET_RSP: + /* + * check for timer pop before processing the rsp + */ + if (fcport->stats_busy == BFA_FALSE || + fcport->stats_status == BFA_STATUS_ETIMER) + break; + + bfa_timer_stop(&fcport->timer); + fcport->stats_status = i2hmsg.pstatsget_rsp->status; + bfa_cb_queue(fcport->bfa, &fcport->hcb_qe, + __bfa_cb_fcport_stats_get, fcport); + break; + + case BFI_FCPORT_I2H_STATS_CLEAR_RSP: + /* + * check for timer pop before processing the rsp + */ + if (fcport->stats_busy == BFA_FALSE || + fcport->stats_status == BFA_STATUS_ETIMER) + break; + + bfa_timer_stop(&fcport->timer); + fcport->stats_status = BFA_STATUS_OK; + bfa_cb_queue(fcport->bfa, &fcport->hcb_qe, + __bfa_cb_fcport_stats_clr, fcport); + break; + + case BFI_FCPORT_I2H_ENABLE_AEN: + bfa_sm_send_event(fcport, BFA_FCPORT_SM_ENABLE); + break; + + case BFI_FCPORT_I2H_DISABLE_AEN: + bfa_sm_send_event(fcport, BFA_FCPORT_SM_DISABLE); + break; + + default: + bfa_assert(0); + break; + } +} + + + +/** + * hal_port_api + */ + +/** + * Registered callback for port events. + */ +void +bfa_fcport_event_register(struct bfa_s *bfa, + void (*cbfn) (void *cbarg, + enum bfa_port_linkstate event), + void *cbarg) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + fcport->event_cbfn = cbfn; + fcport->event_cbarg = cbarg; +} + +bfa_status_t +bfa_fcport_enable(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + if (bfa_ioc_is_disabled(&bfa->ioc)) + return BFA_STATUS_IOC_DISABLED; + + if (fcport->diag_busy) + return BFA_STATUS_DIAG_BUSY; + + bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_ENABLE); + return BFA_STATUS_OK; +} + +bfa_status_t +bfa_fcport_disable(struct bfa_s *bfa) +{ + + if (bfa_ioc_is_disabled(&bfa->ioc)) + return BFA_STATUS_IOC_DISABLED; + + bfa_sm_send_event(BFA_FCPORT_MOD(bfa), BFA_FCPORT_SM_DISABLE); + return BFA_STATUS_OK; +} + +/** + * Configure port speed. + */ +bfa_status_t +bfa_fcport_cfg_speed(struct bfa_s *bfa, enum bfa_port_speed speed) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, speed); + + if (fcport->cfg.trunked == BFA_TRUE) + return BFA_STATUS_TRUNK_ENABLED; + if ((speed != BFA_PORT_SPEED_AUTO) && (speed > fcport->speed_sup)) { + bfa_trc(bfa, fcport->speed_sup); + return BFA_STATUS_UNSUPP_SPEED; + } + + fcport->cfg.speed = speed; + + return BFA_STATUS_OK; +} + +/** + * Get current speed. + */ +enum bfa_port_speed +bfa_fcport_get_speed(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->speed; +} + +/** + * Configure port topology. + */ +bfa_status_t +bfa_fcport_cfg_topology(struct bfa_s *bfa, enum bfa_port_topology topology) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, topology); + bfa_trc(bfa, fcport->cfg.topology); + + switch (topology) { + case BFA_PORT_TOPOLOGY_P2P: + case BFA_PORT_TOPOLOGY_LOOP: + case BFA_PORT_TOPOLOGY_AUTO: + break; + + default: + return BFA_STATUS_EINVAL; + } + + fcport->cfg.topology = topology; + return BFA_STATUS_OK; +} + +/** + * Get current topology. + */ +enum bfa_port_topology +bfa_fcport_get_topology(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->topology; +} + +bfa_status_t +bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, alpa); + bfa_trc(bfa, fcport->cfg.cfg_hardalpa); + bfa_trc(bfa, fcport->cfg.hardalpa); + + fcport->cfg.cfg_hardalpa = BFA_TRUE; + fcport->cfg.hardalpa = alpa; + + return BFA_STATUS_OK; +} + +bfa_status_t +bfa_fcport_clr_hardalpa(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, fcport->cfg.cfg_hardalpa); + bfa_trc(bfa, fcport->cfg.hardalpa); + + fcport->cfg.cfg_hardalpa = BFA_FALSE; + return BFA_STATUS_OK; +} + +bfa_boolean_t +bfa_fcport_get_hardalpa(struct bfa_s *bfa, u8 *alpa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + *alpa = fcport->cfg.hardalpa; + return fcport->cfg.cfg_hardalpa; +} + +u8 +bfa_fcport_get_myalpa(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->myalpa; +} + +bfa_status_t +bfa_fcport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxfrsize) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, maxfrsize); + bfa_trc(bfa, fcport->cfg.maxfrsize); + + /* with in range */ + if ((maxfrsize > FC_MAX_PDUSZ) || (maxfrsize < FC_MIN_PDUSZ)) + return BFA_STATUS_INVLD_DFSZ; + + /* power of 2, if not the max frame size of 2112 */ + if ((maxfrsize != FC_MAX_PDUSZ) && (maxfrsize & (maxfrsize - 1))) + return BFA_STATUS_INVLD_DFSZ; + + fcport->cfg.maxfrsize = maxfrsize; + return BFA_STATUS_OK; +} + +u16 +bfa_fcport_get_maxfrsize(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->cfg.maxfrsize; +} + +u8 +bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->cfg.rx_bbcredit; +} + +void +bfa_fcport_set_tx_bbcredit(struct bfa_s *bfa, u16 tx_bbcredit) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + fcport->cfg.tx_bbcredit = (u8)tx_bbcredit; + bfa_fcport_send_txcredit(fcport); +} + +/** + * Get port attributes. + */ + +wwn_t +bfa_fcport_get_wwn(struct bfa_s *bfa, bfa_boolean_t node) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + if (node) + return fcport->nwwn; + else + return fcport->pwwn; +} + +void +bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_port_attr_s *attr) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_os_memset(attr, 0, sizeof(struct bfa_port_attr_s)); + + attr->nwwn = fcport->nwwn; + attr->pwwn = fcport->pwwn; + + attr->factorypwwn = bfa_ioc_get_mfg_pwwn(&bfa->ioc); + attr->factorynwwn = bfa_ioc_get_mfg_nwwn(&bfa->ioc); + + bfa_os_memcpy(&attr->pport_cfg, &fcport->cfg, + sizeof(struct bfa_port_cfg_s)); + /* speed attributes */ + attr->pport_cfg.speed = fcport->cfg.speed; + attr->speed_supported = fcport->speed_sup; + attr->speed = fcport->speed; + attr->cos_supported = FC_CLASS_3; + + /* topology attributes */ + attr->pport_cfg.topology = fcport->cfg.topology; + attr->topology = fcport->topology; + attr->pport_cfg.trunked = fcport->cfg.trunked; + + /* beacon attributes */ + attr->beacon = fcport->beacon; + attr->link_e2e_beacon = fcport->link_e2e_beacon; + attr->plog_enabled = bfa_plog_get_setting(fcport->bfa->plog); + attr->io_profile = bfa_fcpim_get_io_profile(fcport->bfa); + + attr->pport_cfg.path_tov = bfa_fcpim_path_tov_get(bfa); + attr->pport_cfg.q_depth = bfa_fcpim_qdepth_get(bfa); + attr->port_state = bfa_sm_to_state(hal_port_sm_table, fcport->sm); + if (bfa_ioc_is_disabled(&fcport->bfa->ioc)) + attr->port_state = BFA_PORT_ST_IOCDIS; + else if (bfa_ioc_fw_mismatch(&fcport->bfa->ioc)) + attr->port_state = BFA_PORT_ST_FWMISMATCH; + + /* FCoE vlan */ + attr->fcoe_vlan = fcport->fcoe_vlan; +} + +#define BFA_FCPORT_STATS_TOV 1000 + +/** + * Fetch port statistics (FCQoS or FCoE). + */ +bfa_status_t +bfa_fcport_get_stats(struct bfa_s *bfa, union bfa_fcport_stats_u *stats, + bfa_cb_port_t cbfn, void *cbarg) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + if (fcport->stats_busy) { + bfa_trc(bfa, fcport->stats_busy); + return BFA_STATUS_DEVBUSY; + } + + fcport->stats_busy = BFA_TRUE; + fcport->stats_ret = stats; + fcport->stats_cbfn = cbfn; + fcport->stats_cbarg = cbarg; + + bfa_fcport_send_stats_get(fcport); + + bfa_timer_start(bfa, &fcport->timer, bfa_fcport_stats_get_timeout, + fcport, BFA_FCPORT_STATS_TOV); + return BFA_STATUS_OK; +} + +/** + * Reset port statistics (FCQoS or FCoE). + */ +bfa_status_t +bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_port_t cbfn, void *cbarg) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + if (fcport->stats_busy) { + bfa_trc(bfa, fcport->stats_busy); + return BFA_STATUS_DEVBUSY; + } + + fcport->stats_busy = BFA_TRUE; + fcport->stats_cbfn = cbfn; + fcport->stats_cbarg = cbarg; + + bfa_fcport_send_stats_clear(fcport); + + bfa_timer_start(bfa, &fcport->timer, bfa_fcport_stats_clr_timeout, + fcport, BFA_FCPORT_STATS_TOV); + return BFA_STATUS_OK; +} + +/** + * Fetch FCQoS port statistics + */ +bfa_status_t +bfa_fcport_get_qos_stats(struct bfa_s *bfa, union bfa_fcport_stats_u *stats, + bfa_cb_port_t cbfn, void *cbarg) +{ + /* Meaningful only for FC mode */ + bfa_assert(bfa_ioc_get_fcmode(&bfa->ioc)); + + return bfa_fcport_get_stats(bfa, stats, cbfn, cbarg); +} + +/** + * Reset FCoE port statistics + */ +bfa_status_t +bfa_fcport_clear_qos_stats(struct bfa_s *bfa, bfa_cb_port_t cbfn, void *cbarg) +{ + /* Meaningful only for FC mode */ + bfa_assert(bfa_ioc_get_fcmode(&bfa->ioc)); + + return bfa_fcport_clear_stats(bfa, cbfn, cbarg); +} + +/** + * Fetch FCQoS port statistics + */ +bfa_status_t +bfa_fcport_get_fcoe_stats(struct bfa_s *bfa, union bfa_fcport_stats_u *stats, + bfa_cb_port_t cbfn, void *cbarg) +{ + /* Meaningful only for FCoE mode */ + bfa_assert(!bfa_ioc_get_fcmode(&bfa->ioc)); + + return bfa_fcport_get_stats(bfa, stats, cbfn, cbarg); +} + +/** + * Reset FCoE port statistics + */ +bfa_status_t +bfa_fcport_clear_fcoe_stats(struct bfa_s *bfa, bfa_cb_port_t cbfn, void *cbarg) +{ + /* Meaningful only for FCoE mode */ + bfa_assert(!bfa_ioc_get_fcmode(&bfa->ioc)); + + return bfa_fcport_clear_stats(bfa, cbfn, cbarg); +} + +void +bfa_fcport_qos_get_attr(struct bfa_s *bfa, struct bfa_qos_attr_s *qos_attr) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + qos_attr->state = fcport->qos_attr.state; + qos_attr->total_bb_cr = bfa_os_ntohl(fcport->qos_attr.total_bb_cr); +} + +void +bfa_fcport_qos_get_vc_attr(struct bfa_s *bfa, + struct bfa_qos_vc_attr_s *qos_vc_attr) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + struct bfa_qos_vc_attr_s *bfa_vc_attr = &fcport->qos_vc_attr; + u32 i = 0; + + qos_vc_attr->total_vc_count = bfa_os_ntohs(bfa_vc_attr->total_vc_count); + qos_vc_attr->shared_credit = bfa_os_ntohs(bfa_vc_attr->shared_credit); + qos_vc_attr->elp_opmode_flags = + bfa_os_ntohl(bfa_vc_attr->elp_opmode_flags); + + /* Individual VC info */ + while (i < qos_vc_attr->total_vc_count) { + qos_vc_attr->vc_info[i].vc_credit = + bfa_vc_attr->vc_info[i].vc_credit; + qos_vc_attr->vc_info[i].borrow_credit = + bfa_vc_attr->vc_info[i].borrow_credit; + qos_vc_attr->vc_info[i].priority = + bfa_vc_attr->vc_info[i].priority; + ++i; + } +} + +/** + * Fetch port attributes. + */ +bfa_boolean_t +bfa_fcport_is_disabled(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return bfa_sm_to_state(hal_port_sm_table, fcport->sm) == + BFA_PORT_ST_DISABLED; + +} + +bfa_boolean_t +bfa_fcport_is_ratelim(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->cfg.ratelimit ? BFA_TRUE : BFA_FALSE; + +} + +void +bfa_fcport_cfg_qos(struct bfa_s *bfa, bfa_boolean_t on_off) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + enum bfa_ioc_type_e ioc_type = bfa_get_type(bfa); + + bfa_trc(bfa, on_off); + bfa_trc(bfa, fcport->cfg.qos_enabled); + + bfa_trc(bfa, ioc_type); + + if (ioc_type == BFA_IOC_TYPE_FC) { + fcport->cfg.qos_enabled = on_off; + /** + * Notify fcpim of the change in QoS state + */ + bfa_fcpim_update_ioredirect(bfa); + } +} + +void +bfa_fcport_cfg_ratelim(struct bfa_s *bfa, bfa_boolean_t on_off) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, on_off); + bfa_trc(bfa, fcport->cfg.ratelimit); + + fcport->cfg.ratelimit = on_off; + if (fcport->cfg.trl_def_speed == BFA_PORT_SPEED_UNKNOWN) + fcport->cfg.trl_def_speed = BFA_PORT_SPEED_1GBPS; +} + +/** + * Configure default minimum ratelim speed + */ +bfa_status_t +bfa_fcport_cfg_ratelim_speed(struct bfa_s *bfa, enum bfa_port_speed speed) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, speed); + + /* Auto and speeds greater than the supported speed, are invalid */ + if ((speed == BFA_PORT_SPEED_AUTO) || (speed > fcport->speed_sup)) { + bfa_trc(bfa, fcport->speed_sup); + return BFA_STATUS_UNSUPP_SPEED; + } + + fcport->cfg.trl_def_speed = speed; + + return BFA_STATUS_OK; +} + +/** + * Get default minimum ratelim speed + */ +enum bfa_port_speed +bfa_fcport_get_ratelim_speed(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, fcport->cfg.trl_def_speed); + return fcport->cfg.trl_def_speed; + +} +void +bfa_fcport_busy(struct bfa_s *bfa, bfa_boolean_t status) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, status); + bfa_trc(bfa, fcport->diag_busy); + + fcport->diag_busy = status; +} + +void +bfa_fcport_beacon(void *dev, bfa_boolean_t beacon, + bfa_boolean_t link_e2e_beacon) +{ + struct bfa_s *bfa = dev; + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + bfa_trc(bfa, beacon); + bfa_trc(bfa, link_e2e_beacon); + bfa_trc(bfa, fcport->beacon); + bfa_trc(bfa, fcport->link_e2e_beacon); + + fcport->beacon = beacon; + fcport->link_e2e_beacon = link_e2e_beacon; +} + +bfa_boolean_t +bfa_fcport_is_linkup(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return (!fcport->cfg.trunked && + bfa_sm_cmp_state(fcport, bfa_fcport_sm_linkup)) || + (fcport->cfg.trunked && + fcport->trunk.attr.state == BFA_TRUNK_ONLINE); +} + +bfa_boolean_t +bfa_fcport_is_qos_enabled(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + + return fcport->cfg.qos_enabled; +} + +bfa_status_t +bfa_trunk_get_attr(struct bfa_s *bfa, struct bfa_trunk_attr_s *attr) + +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + struct bfa_fcport_trunk_s *trunk = &fcport->trunk; + + bfa_trc(bfa, fcport->cfg.trunked); + bfa_trc(bfa, trunk->attr.state); + *attr = trunk->attr; + attr->port_id = bfa_lps_get_base_pid(bfa); + + return BFA_STATUS_OK; +} + +void +bfa_trunk_enable_cfg(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + struct bfa_fcport_trunk_s *trunk = &fcport->trunk; + + bfa_trc(bfa, 1); + trunk->attr.state = BFA_TRUNK_OFFLINE; + fcport->cfg.trunked = BFA_TRUE; +} + +bfa_status_t +bfa_trunk_enable(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + struct bfa_fcport_trunk_s *trunk = &fcport->trunk; + + bfa_trc(bfa, 1); + + trunk->attr.state = BFA_TRUNK_OFFLINE; + bfa_fcport_disable(bfa); + fcport->cfg.trunked = BFA_TRUE; + bfa_fcport_enable(bfa); + + return BFA_STATUS_OK; +} + +bfa_status_t +bfa_trunk_disable(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + struct bfa_fcport_trunk_s *trunk = &fcport->trunk; + + bfa_trc(bfa, 0); + trunk->attr.state = BFA_TRUNK_DISABLED; + bfa_fcport_disable(bfa); + fcport->cfg.trunked = BFA_FALSE; + bfa_fcport_enable(bfa); + return BFA_STATUS_OK; +} + + +/** + * Rport State machine functions + */ +/** + * Beginning state, only online event expected. + */ +static void +bfa_rport_sm_uninit(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_CREATE: + bfa_stats(rp, sm_un_cr); + bfa_sm_set_state(rp, bfa_rport_sm_created); + break; + + default: + bfa_stats(rp, sm_un_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +static void +bfa_rport_sm_created(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_ONLINE: + bfa_stats(rp, sm_cr_on); + if (bfa_rport_send_fwcreate(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate); + else + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_cr_del); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_rport_free(rp); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_cr_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + break; + + default: + bfa_stats(rp, sm_cr_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Waiting for rport create response from firmware. + */ +static void +bfa_rport_sm_fwcreate(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_FWRSP: + bfa_stats(rp, sm_fwc_rsp); + bfa_sm_set_state(rp, bfa_rport_sm_online); + bfa_rport_online_cb(rp); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_fwc_del); + bfa_sm_set_state(rp, bfa_rport_sm_delete_pending); + break; + + case BFA_RPORT_SM_OFFLINE: + bfa_stats(rp, sm_fwc_off); + bfa_sm_set_state(rp, bfa_rport_sm_offline_pending); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_fwc_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + break; + + default: + bfa_stats(rp, sm_fwc_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Request queue is full, awaiting queue resume to send create request. + */ +static void +bfa_rport_sm_fwcreate_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_QRESUME: + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate); + bfa_rport_send_fwcreate(rp); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_fwc_del); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_reqq_wcancel(&rp->reqq_wait); + bfa_rport_free(rp); + break; + + case BFA_RPORT_SM_OFFLINE: + bfa_stats(rp, sm_fwc_off); + bfa_sm_set_state(rp, bfa_rport_sm_offline); + bfa_reqq_wcancel(&rp->reqq_wait); + bfa_rport_offline_cb(rp); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_fwc_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + bfa_reqq_wcancel(&rp->reqq_wait); + break; + + default: + bfa_stats(rp, sm_fwc_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Online state - normal parking state. + */ +static void +bfa_rport_sm_online(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + struct bfi_rport_qos_scn_s *qos_scn; + + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_OFFLINE: + bfa_stats(rp, sm_on_off); + if (bfa_rport_send_fwdelete(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_fwdelete); + else + bfa_sm_set_state(rp, bfa_rport_sm_fwdelete_qfull); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_on_del); + if (bfa_rport_send_fwdelete(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_deleting); + else + bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_on_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + break; + + case BFA_RPORT_SM_SET_SPEED: + bfa_rport_send_fwspeed(rp); + break; + + case BFA_RPORT_SM_QOS_SCN: + qos_scn = (struct bfi_rport_qos_scn_s *) rp->event_arg.fw_msg; + rp->qos_attr = qos_scn->new_qos_attr; + bfa_trc(rp->bfa, qos_scn->old_qos_attr.qos_flow_id); + bfa_trc(rp->bfa, qos_scn->new_qos_attr.qos_flow_id); + bfa_trc(rp->bfa, qos_scn->old_qos_attr.qos_priority); + bfa_trc(rp->bfa, qos_scn->new_qos_attr.qos_priority); + + qos_scn->old_qos_attr.qos_flow_id = + bfa_os_ntohl(qos_scn->old_qos_attr.qos_flow_id); + qos_scn->new_qos_attr.qos_flow_id = + bfa_os_ntohl(qos_scn->new_qos_attr.qos_flow_id); + + if (qos_scn->old_qos_attr.qos_flow_id != + qos_scn->new_qos_attr.qos_flow_id) + bfa_cb_rport_qos_scn_flowid(rp->rport_drv, + qos_scn->old_qos_attr, + qos_scn->new_qos_attr); + if (qos_scn->old_qos_attr.qos_priority != + qos_scn->new_qos_attr.qos_priority) + bfa_cb_rport_qos_scn_prio(rp->rport_drv, + qos_scn->old_qos_attr, + qos_scn->new_qos_attr); + break; + + default: + bfa_stats(rp, sm_on_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Firmware rport is being deleted - awaiting f/w response. + */ +static void +bfa_rport_sm_fwdelete(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_FWRSP: + bfa_stats(rp, sm_fwd_rsp); + bfa_sm_set_state(rp, bfa_rport_sm_offline); + bfa_rport_offline_cb(rp); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_fwd_del); + bfa_sm_set_state(rp, bfa_rport_sm_deleting); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_fwd_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + bfa_rport_offline_cb(rp); + break; + + default: + bfa_stats(rp, sm_fwd_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +static void +bfa_rport_sm_fwdelete_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_QRESUME: + bfa_sm_set_state(rp, bfa_rport_sm_fwdelete); + bfa_rport_send_fwdelete(rp); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_fwd_del); + bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_fwd_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + bfa_reqq_wcancel(&rp->reqq_wait); + bfa_rport_offline_cb(rp); + break; + + default: + bfa_stats(rp, sm_fwd_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Offline state. + */ +static void +bfa_rport_sm_offline(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_off_del); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_rport_free(rp); + break; + + case BFA_RPORT_SM_ONLINE: + bfa_stats(rp, sm_off_on); + if (bfa_rport_send_fwcreate(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate); + else + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_off_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + break; + + default: + bfa_stats(rp, sm_off_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Rport is deleted, waiting for firmware response to delete. + */ +static void +bfa_rport_sm_deleting(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_FWRSP: + bfa_stats(rp, sm_del_fwrsp); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_rport_free(rp); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_del_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_rport_free(rp); + break; + + default: + bfa_sm_fault(rp->bfa, event); + } +} + +static void +bfa_rport_sm_deleting_qfull(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_QRESUME: + bfa_stats(rp, sm_del_fwrsp); + bfa_sm_set_state(rp, bfa_rport_sm_deleting); + bfa_rport_send_fwdelete(rp); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_del_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_reqq_wcancel(&rp->reqq_wait); + bfa_rport_free(rp); + break; + + default: + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Waiting for rport create response from firmware. A delete is pending. + */ +static void +bfa_rport_sm_delete_pending(struct bfa_rport_s *rp, + enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_FWRSP: + bfa_stats(rp, sm_delp_fwrsp); + if (bfa_rport_send_fwdelete(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_deleting); + else + bfa_sm_set_state(rp, bfa_rport_sm_deleting_qfull); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_delp_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_rport_free(rp); + break; + + default: + bfa_stats(rp, sm_delp_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * Waiting for rport create response from firmware. Rport offline is pending. + */ +static void +bfa_rport_sm_offline_pending(struct bfa_rport_s *rp, + enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_FWRSP: + bfa_stats(rp, sm_offp_fwrsp); + if (bfa_rport_send_fwdelete(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_fwdelete); + else + bfa_sm_set_state(rp, bfa_rport_sm_fwdelete_qfull); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_offp_del); + bfa_sm_set_state(rp, bfa_rport_sm_delete_pending); + break; + + case BFA_RPORT_SM_HWFAIL: + bfa_stats(rp, sm_offp_hwf); + bfa_sm_set_state(rp, bfa_rport_sm_iocdisable); + break; + + default: + bfa_stats(rp, sm_offp_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + +/** + * IOC h/w failed. + */ +static void +bfa_rport_sm_iocdisable(struct bfa_rport_s *rp, enum bfa_rport_event event) +{ + bfa_trc(rp->bfa, rp->rport_tag); + bfa_trc(rp->bfa, event); + + switch (event) { + case BFA_RPORT_SM_OFFLINE: + bfa_stats(rp, sm_iocd_off); + bfa_rport_offline_cb(rp); + break; + + case BFA_RPORT_SM_DELETE: + bfa_stats(rp, sm_iocd_del); + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + bfa_rport_free(rp); + break; + + case BFA_RPORT_SM_ONLINE: + bfa_stats(rp, sm_iocd_on); + if (bfa_rport_send_fwcreate(rp)) + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate); + else + bfa_sm_set_state(rp, bfa_rport_sm_fwcreate_qfull); + break; + + case BFA_RPORT_SM_HWFAIL: + break; + + default: + bfa_stats(rp, sm_iocd_unexp); + bfa_sm_fault(rp->bfa, event); + } +} + + + +/** + * bfa_rport_private BFA rport private functions + */ + +static void +__bfa_cb_rport_online(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_rport_s *rp = cbarg; + + if (complete) + bfa_cb_rport_online(rp->rport_drv); +} + +static void +__bfa_cb_rport_offline(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_rport_s *rp = cbarg; + + if (complete) + bfa_cb_rport_offline(rp->rport_drv); +} + +static void +bfa_rport_qresume(void *cbarg) +{ + struct bfa_rport_s *rp = cbarg; + + bfa_sm_send_event(rp, BFA_RPORT_SM_QRESUME); +} + +static void +bfa_rport_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, + u32 *dm_len) +{ + if (cfg->fwcfg.num_rports < BFA_RPORT_MIN) + cfg->fwcfg.num_rports = BFA_RPORT_MIN; + + *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_rport_s); +} + +static void +bfa_rport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev) +{ + struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(bfa); + struct bfa_rport_s *rp; + u16 i; + + INIT_LIST_HEAD(&mod->rp_free_q); + INIT_LIST_HEAD(&mod->rp_active_q); + + rp = (struct bfa_rport_s *) bfa_meminfo_kva(meminfo); + mod->rps_list = rp; + mod->num_rports = cfg->fwcfg.num_rports; + + bfa_assert(mod->num_rports && + !(mod->num_rports & (mod->num_rports - 1))); + + for (i = 0; i < mod->num_rports; i++, rp++) { + bfa_os_memset(rp, 0, sizeof(struct bfa_rport_s)); + rp->bfa = bfa; + rp->rport_tag = i; + bfa_sm_set_state(rp, bfa_rport_sm_uninit); + + /** + * - is unused + */ + if (i) + list_add_tail(&rp->qe, &mod->rp_free_q); + + bfa_reqq_winit(&rp->reqq_wait, bfa_rport_qresume, rp); + } + + /** + * consume memory + */ + bfa_meminfo_kva(meminfo) = (u8 *) rp; +} + +static void +bfa_rport_detach(struct bfa_s *bfa) +{ +} + +static void +bfa_rport_start(struct bfa_s *bfa) +{ +} + +static void +bfa_rport_stop(struct bfa_s *bfa) +{ +} + +static void +bfa_rport_iocdisable(struct bfa_s *bfa) +{ + struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(bfa); + struct bfa_rport_s *rport; + struct list_head *qe, *qen; + + list_for_each_safe(qe, qen, &mod->rp_active_q) { + rport = (struct bfa_rport_s *) qe; + bfa_sm_send_event(rport, BFA_RPORT_SM_HWFAIL); + } +} + +static struct bfa_rport_s * +bfa_rport_alloc(struct bfa_rport_mod_s *mod) +{ + struct bfa_rport_s *rport; + + bfa_q_deq(&mod->rp_free_q, &rport); + if (rport) + list_add_tail(&rport->qe, &mod->rp_active_q); + + return rport; +} + +static void +bfa_rport_free(struct bfa_rport_s *rport) +{ + struct bfa_rport_mod_s *mod = BFA_RPORT_MOD(rport->bfa); + + bfa_assert(bfa_q_is_on_q(&mod->rp_active_q, rport)); + list_del(&rport->qe); + list_add_tail(&rport->qe, &mod->rp_free_q); +} + +static bfa_boolean_t +bfa_rport_send_fwcreate(struct bfa_rport_s *rp) +{ + struct bfi_rport_create_req_s *m; + + /** + * check for room in queue to send request now + */ + m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT); + if (!m) { + bfa_reqq_wait(rp->bfa, BFA_REQQ_RPORT, &rp->reqq_wait); + return BFA_FALSE; + } + + bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_CREATE_REQ, + bfa_lpuid(rp->bfa)); + m->bfa_handle = rp->rport_tag; + m->max_frmsz = bfa_os_htons(rp->rport_info.max_frmsz); + m->pid = rp->rport_info.pid; + m->lp_tag = rp->rport_info.lp_tag; + m->local_pid = rp->rport_info.local_pid; + m->fc_class = rp->rport_info.fc_class; + m->vf_en = rp->rport_info.vf_en; + m->vf_id = rp->rport_info.vf_id; + m->cisc = rp->rport_info.cisc; + + /** + * queue I/O message to firmware + */ + bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT); + return BFA_TRUE; +} + +static bfa_boolean_t +bfa_rport_send_fwdelete(struct bfa_rport_s *rp) +{ + struct bfi_rport_delete_req_s *m; + + /** + * check for room in queue to send request now + */ + m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT); + if (!m) { + bfa_reqq_wait(rp->bfa, BFA_REQQ_RPORT, &rp->reqq_wait); + return BFA_FALSE; + } + + bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_DELETE_REQ, + bfa_lpuid(rp->bfa)); + m->fw_handle = rp->fw_handle; + + /** + * queue I/O message to firmware + */ + bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT); + return BFA_TRUE; +} + +static bfa_boolean_t +bfa_rport_send_fwspeed(struct bfa_rport_s *rp) +{ + struct bfa_rport_speed_req_s *m; + + /** + * check for room in queue to send request now + */ + m = bfa_reqq_next(rp->bfa, BFA_REQQ_RPORT); + if (!m) { + bfa_trc(rp->bfa, rp->rport_info.speed); + return BFA_FALSE; + } + + bfi_h2i_set(m->mh, BFI_MC_RPORT, BFI_RPORT_H2I_SET_SPEED_REQ, + bfa_lpuid(rp->bfa)); + m->fw_handle = rp->fw_handle; + m->speed = (u8)rp->rport_info.speed; + + /** + * queue I/O message to firmware + */ + bfa_reqq_produce(rp->bfa, BFA_REQQ_RPORT); + return BFA_TRUE; +} + + + +/** + * bfa_rport_public + */ + +/** + * Rport interrupt processing. + */ +void +bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *m) +{ + union bfi_rport_i2h_msg_u msg; + struct bfa_rport_s *rp; + + bfa_trc(bfa, m->mhdr.msg_id); + + msg.msg = m; + + switch (m->mhdr.msg_id) { + case BFI_RPORT_I2H_CREATE_RSP: + rp = BFA_RPORT_FROM_TAG(bfa, msg.create_rsp->bfa_handle); + rp->fw_handle = msg.create_rsp->fw_handle; + rp->qos_attr = msg.create_rsp->qos_attr; + bfa_assert(msg.create_rsp->status == BFA_STATUS_OK); + bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP); + break; + + case BFI_RPORT_I2H_DELETE_RSP: + rp = BFA_RPORT_FROM_TAG(bfa, msg.delete_rsp->bfa_handle); + bfa_assert(msg.delete_rsp->status == BFA_STATUS_OK); + bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP); + break; + + case BFI_RPORT_I2H_QOS_SCN: + rp = BFA_RPORT_FROM_TAG(bfa, msg.qos_scn_evt->bfa_handle); + rp->event_arg.fw_msg = msg.qos_scn_evt; + bfa_sm_send_event(rp, BFA_RPORT_SM_QOS_SCN); + break; + + default: + bfa_trc(bfa, m->mhdr.msg_id); + bfa_assert(0); + } +} + + + +/** + * bfa_rport_api + */ + +struct bfa_rport_s * +bfa_rport_create(struct bfa_s *bfa, void *rport_drv) +{ + struct bfa_rport_s *rp; + + rp = bfa_rport_alloc(BFA_RPORT_MOD(bfa)); + + if (rp == NULL) + return NULL; + + rp->bfa = bfa; + rp->rport_drv = rport_drv; + bfa_rport_clear_stats(rp); + + bfa_assert(bfa_sm_cmp_state(rp, bfa_rport_sm_uninit)); + bfa_sm_send_event(rp, BFA_RPORT_SM_CREATE); + + return rp; +} + +void +bfa_rport_delete(struct bfa_rport_s *rport) +{ + bfa_sm_send_event(rport, BFA_RPORT_SM_DELETE); +} + +void +bfa_rport_online(struct bfa_rport_s *rport, struct bfa_rport_info_s *rport_info) +{ + bfa_assert(rport_info->max_frmsz != 0); + + /** + * Some JBODs are seen to be not setting PDU size correctly in PLOGI + * responses. Default to minimum size. + */ + if (rport_info->max_frmsz == 0) { + bfa_trc(rport->bfa, rport->rport_tag); + rport_info->max_frmsz = FC_MIN_PDUSZ; + } + + bfa_os_assign(rport->rport_info, *rport_info); + bfa_sm_send_event(rport, BFA_RPORT_SM_ONLINE); +} + +void +bfa_rport_offline(struct bfa_rport_s *rport) +{ + bfa_sm_send_event(rport, BFA_RPORT_SM_OFFLINE); +} + +void +bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed) +{ + bfa_assert(speed != 0); + bfa_assert(speed != BFA_PORT_SPEED_AUTO); + + rport->rport_info.speed = speed; + bfa_sm_send_event(rport, BFA_RPORT_SM_SET_SPEED); +} + +void +bfa_rport_get_stats(struct bfa_rport_s *rport, + struct bfa_rport_hal_stats_s *stats) +{ + *stats = rport->stats; +} + +void +bfa_rport_get_qos_attr(struct bfa_rport_s *rport, + struct bfa_rport_qos_attr_s *qos_attr) +{ + qos_attr->qos_priority = rport->qos_attr.qos_priority; + qos_attr->qos_flow_id = bfa_os_ntohl(rport->qos_attr.qos_flow_id); + +} + +void +bfa_rport_clear_stats(struct bfa_rport_s *rport) +{ + bfa_os_memset(&rport->stats, 0, sizeof(rport->stats)); +} + + +/** + * SGPG related functions + */ + +/** + * Compute and return memory needed by FCP(im) module. + */ +static void +bfa_sgpg_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, + u32 *dm_len) +{ + if (cfg->drvcfg.num_sgpgs < BFA_SGPG_MIN) + cfg->drvcfg.num_sgpgs = BFA_SGPG_MIN; + + *km_len += (cfg->drvcfg.num_sgpgs + 1) * sizeof(struct bfa_sgpg_s); + *dm_len += (cfg->drvcfg.num_sgpgs + 1) * sizeof(struct bfi_sgpg_s); +} + + +static void +bfa_sgpg_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *minfo, struct bfa_pcidev_s *pcidev) +{ + struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa); + int i; + struct bfa_sgpg_s *hsgpg; + struct bfi_sgpg_s *sgpg; + u64 align_len; + + union { + u64 pa; + union bfi_addr_u addr; + } sgpg_pa, sgpg_pa_tmp; + + INIT_LIST_HEAD(&mod->sgpg_q); + INIT_LIST_HEAD(&mod->sgpg_wait_q); + + bfa_trc(bfa, cfg->drvcfg.num_sgpgs); + + mod->num_sgpgs = cfg->drvcfg.num_sgpgs; + mod->sgpg_arr_pa = bfa_meminfo_dma_phys(minfo); + align_len = (BFA_SGPG_ROUNDUP(mod->sgpg_arr_pa) - mod->sgpg_arr_pa); + mod->sgpg_arr_pa += align_len; + mod->hsgpg_arr = (struct bfa_sgpg_s *) (bfa_meminfo_kva(minfo) + + align_len); + mod->sgpg_arr = (struct bfi_sgpg_s *) (bfa_meminfo_dma_virt(minfo) + + align_len); + + hsgpg = mod->hsgpg_arr; + sgpg = mod->sgpg_arr; + sgpg_pa.pa = mod->sgpg_arr_pa; + mod->free_sgpgs = mod->num_sgpgs; + + bfa_assert(!(sgpg_pa.pa & (sizeof(struct bfi_sgpg_s) - 1))); + + for (i = 0; i < mod->num_sgpgs; i++) { + bfa_os_memset(hsgpg, 0, sizeof(*hsgpg)); + bfa_os_memset(sgpg, 0, sizeof(*sgpg)); + + hsgpg->sgpg = sgpg; + sgpg_pa_tmp.pa = bfa_sgaddr_le(sgpg_pa.pa); + hsgpg->sgpg_pa = sgpg_pa_tmp.addr; + list_add_tail(&hsgpg->qe, &mod->sgpg_q); + + hsgpg++; + sgpg++; + sgpg_pa.pa += sizeof(struct bfi_sgpg_s); + } + + bfa_meminfo_kva(minfo) = (u8 *) hsgpg; + bfa_meminfo_dma_virt(minfo) = (u8 *) sgpg; + bfa_meminfo_dma_phys(minfo) = sgpg_pa.pa; +} + +static void +bfa_sgpg_detach(struct bfa_s *bfa) +{ +} + +static void +bfa_sgpg_start(struct bfa_s *bfa) +{ +} + +static void +bfa_sgpg_stop(struct bfa_s *bfa) +{ +} + +static void +bfa_sgpg_iocdisable(struct bfa_s *bfa) +{ +} + + + +/** + * hal_sgpg_public BFA SGPG public functions + */ + +bfa_status_t +bfa_sgpg_malloc(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpgs) +{ + struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa); + struct bfa_sgpg_s *hsgpg; + int i; + + bfa_trc_fp(bfa, nsgpgs); + + if (mod->free_sgpgs < nsgpgs) + return BFA_STATUS_ENOMEM; + + for (i = 0; i < nsgpgs; i++) { + bfa_q_deq(&mod->sgpg_q, &hsgpg); + bfa_assert(hsgpg); + list_add_tail(&hsgpg->qe, sgpg_q); + } + + mod->free_sgpgs -= nsgpgs; + return BFA_STATUS_OK; +} + +void +bfa_sgpg_mfree(struct bfa_s *bfa, struct list_head *sgpg_q, int nsgpg) +{ + struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa); + struct bfa_sgpg_wqe_s *wqe; + + bfa_trc_fp(bfa, nsgpg); + + mod->free_sgpgs += nsgpg; + bfa_assert(mod->free_sgpgs <= mod->num_sgpgs); + + list_splice_tail_init(sgpg_q, &mod->sgpg_q); + + if (list_empty(&mod->sgpg_wait_q)) + return; + + /** + * satisfy as many waiting requests as possible + */ + do { + wqe = bfa_q_first(&mod->sgpg_wait_q); + if (mod->free_sgpgs < wqe->nsgpg) + nsgpg = mod->free_sgpgs; + else + nsgpg = wqe->nsgpg; + bfa_sgpg_malloc(bfa, &wqe->sgpg_q, nsgpg); + wqe->nsgpg -= nsgpg; + if (wqe->nsgpg == 0) { + list_del(&wqe->qe); + wqe->cbfn(wqe->cbarg); + } + } while (mod->free_sgpgs && !list_empty(&mod->sgpg_wait_q)); +} + +void +bfa_sgpg_wait(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe, int nsgpg) +{ + struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa); + + bfa_assert(nsgpg > 0); + bfa_assert(nsgpg > mod->free_sgpgs); + + wqe->nsgpg_total = wqe->nsgpg = nsgpg; + + /** + * allocate any left to this one first + */ + if (mod->free_sgpgs) { + /** + * no one else is waiting for SGPG + */ + bfa_assert(list_empty(&mod->sgpg_wait_q)); + list_splice_tail_init(&mod->sgpg_q, &wqe->sgpg_q); + wqe->nsgpg -= mod->free_sgpgs; + mod->free_sgpgs = 0; + } + + list_add_tail(&wqe->qe, &mod->sgpg_wait_q); +} + +void +bfa_sgpg_wcancel(struct bfa_s *bfa, struct bfa_sgpg_wqe_s *wqe) +{ + struct bfa_sgpg_mod_s *mod = BFA_SGPG_MOD(bfa); + + bfa_assert(bfa_q_is_on_q(&mod->sgpg_wait_q, wqe)); + list_del(&wqe->qe); + + if (wqe->nsgpg_total != wqe->nsgpg) + bfa_sgpg_mfree(bfa, &wqe->sgpg_q, + wqe->nsgpg_total - wqe->nsgpg); +} + +void +bfa_sgpg_winit(struct bfa_sgpg_wqe_s *wqe, void (*cbfn) (void *cbarg), + void *cbarg) +{ + INIT_LIST_HEAD(&wqe->sgpg_q); + wqe->cbfn = cbfn; + wqe->cbarg = cbarg; +} + +/** + * UF related functions + */ +/* + ***************************************************************************** + * Internal functions + ***************************************************************************** + */ +static void +__bfa_cb_uf_recv(void *cbarg, bfa_boolean_t complete) +{ + struct bfa_uf_s *uf = cbarg; + struct bfa_uf_mod_s *ufm = BFA_UF_MOD(uf->bfa); + + if (complete) + ufm->ufrecv(ufm->cbarg, uf); +} + +static void +claim_uf_pbs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi) +{ + u32 uf_pb_tot_sz; + + ufm->uf_pbs_kva = (struct bfa_uf_buf_s *) bfa_meminfo_dma_virt(mi); + ufm->uf_pbs_pa = bfa_meminfo_dma_phys(mi); + uf_pb_tot_sz = BFA_ROUNDUP((sizeof(struct bfa_uf_buf_s) * ufm->num_ufs), + BFA_DMA_ALIGN_SZ); + + bfa_meminfo_dma_virt(mi) += uf_pb_tot_sz; + bfa_meminfo_dma_phys(mi) += uf_pb_tot_sz; + + bfa_os_memset((void *)ufm->uf_pbs_kva, 0, uf_pb_tot_sz); +} + +static void +claim_uf_post_msgs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi) +{ + struct bfi_uf_buf_post_s *uf_bp_msg; + struct bfi_sge_s *sge; + union bfi_addr_u sga_zero = { {0} }; + u16 i; + u16 buf_len; + + ufm->uf_buf_posts = (struct bfi_uf_buf_post_s *) bfa_meminfo_kva(mi); + uf_bp_msg = ufm->uf_buf_posts; + + for (i = 0, uf_bp_msg = ufm->uf_buf_posts; i < ufm->num_ufs; + i++, uf_bp_msg++) { + bfa_os_memset(uf_bp_msg, 0, sizeof(struct bfi_uf_buf_post_s)); + + uf_bp_msg->buf_tag = i; + buf_len = sizeof(struct bfa_uf_buf_s); + uf_bp_msg->buf_len = bfa_os_htons(buf_len); + bfi_h2i_set(uf_bp_msg->mh, BFI_MC_UF, BFI_UF_H2I_BUF_POST, + bfa_lpuid(ufm->bfa)); + + sge = uf_bp_msg->sge; + sge[0].sg_len = buf_len; + sge[0].flags = BFI_SGE_DATA_LAST; + bfa_dma_addr_set(sge[0].sga, ufm_pbs_pa(ufm, i)); + bfa_sge_to_be(sge); + + sge[1].sg_len = buf_len; + sge[1].flags = BFI_SGE_PGDLEN; + sge[1].sga = sga_zero; + bfa_sge_to_be(&sge[1]); + } + + /** + * advance pointer beyond consumed memory + */ + bfa_meminfo_kva(mi) = (u8 *) uf_bp_msg; +} + +static void +claim_ufs(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi) +{ + u16 i; + struct bfa_uf_s *uf; + + /* + * Claim block of memory for UF list + */ + ufm->uf_list = (struct bfa_uf_s *) bfa_meminfo_kva(mi); + + /* + * Initialize UFs and queue it in UF free queue + */ + for (i = 0, uf = ufm->uf_list; i < ufm->num_ufs; i++, uf++) { + bfa_os_memset(uf, 0, sizeof(struct bfa_uf_s)); + uf->bfa = ufm->bfa; + uf->uf_tag = i; + uf->pb_len = sizeof(struct bfa_uf_buf_s); + uf->buf_kva = (void *)&ufm->uf_pbs_kva[i]; + uf->buf_pa = ufm_pbs_pa(ufm, i); + list_add_tail(&uf->qe, &ufm->uf_free_q); + } + + /** + * advance memory pointer + */ + bfa_meminfo_kva(mi) = (u8 *) uf; +} + +static void +uf_mem_claim(struct bfa_uf_mod_s *ufm, struct bfa_meminfo_s *mi) +{ + claim_uf_pbs(ufm, mi); + claim_ufs(ufm, mi); + claim_uf_post_msgs(ufm, mi); +} + +static void +bfa_uf_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len, u32 *dm_len) +{ + u32 num_ufs = cfg->fwcfg.num_uf_bufs; + + /* + * dma-able memory for UF posted bufs + */ + *dm_len += BFA_ROUNDUP((sizeof(struct bfa_uf_buf_s) * num_ufs), + BFA_DMA_ALIGN_SZ); + + /* + * kernel Virtual memory for UFs and UF buf post msg copies + */ + *ndm_len += sizeof(struct bfa_uf_s) * num_ufs; + *ndm_len += sizeof(struct bfi_uf_buf_post_s) * num_ufs; +} + +static void +bfa_uf_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev) +{ + struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa); + + bfa_os_memset(ufm, 0, sizeof(struct bfa_uf_mod_s)); + ufm->bfa = bfa; + ufm->num_ufs = cfg->fwcfg.num_uf_bufs; + INIT_LIST_HEAD(&ufm->uf_free_q); + INIT_LIST_HEAD(&ufm->uf_posted_q); + + uf_mem_claim(ufm, meminfo); +} + +static void +bfa_uf_detach(struct bfa_s *bfa) +{ +} + +static struct bfa_uf_s * +bfa_uf_get(struct bfa_uf_mod_s *uf_mod) +{ + struct bfa_uf_s *uf; + + bfa_q_deq(&uf_mod->uf_free_q, &uf); + return uf; +} + +static void +bfa_uf_put(struct bfa_uf_mod_s *uf_mod, struct bfa_uf_s *uf) +{ + list_add_tail(&uf->qe, &uf_mod->uf_free_q); +} + +static bfa_status_t +bfa_uf_post(struct bfa_uf_mod_s *ufm, struct bfa_uf_s *uf) +{ + struct bfi_uf_buf_post_s *uf_post_msg; + + uf_post_msg = bfa_reqq_next(ufm->bfa, BFA_REQQ_FCXP); + if (!uf_post_msg) + return BFA_STATUS_FAILED; + + bfa_os_memcpy(uf_post_msg, &ufm->uf_buf_posts[uf->uf_tag], + sizeof(struct bfi_uf_buf_post_s)); + bfa_reqq_produce(ufm->bfa, BFA_REQQ_FCXP); + + bfa_trc(ufm->bfa, uf->uf_tag); + + list_add_tail(&uf->qe, &ufm->uf_posted_q); + return BFA_STATUS_OK; +} + +static void +bfa_uf_post_all(struct bfa_uf_mod_s *uf_mod) +{ + struct bfa_uf_s *uf; + + while ((uf = bfa_uf_get(uf_mod)) != NULL) { + if (bfa_uf_post(uf_mod, uf) != BFA_STATUS_OK) + break; + } +} + +static void +uf_recv(struct bfa_s *bfa, struct bfi_uf_frm_rcvd_s *m) +{ + struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa); + u16 uf_tag = m->buf_tag; + struct bfa_uf_buf_s *uf_buf = &ufm->uf_pbs_kva[uf_tag]; + struct bfa_uf_s *uf = &ufm->uf_list[uf_tag]; + u8 *buf = &uf_buf->d[0]; + struct fchs_s *fchs; + + m->frm_len = bfa_os_ntohs(m->frm_len); + m->xfr_len = bfa_os_ntohs(m->xfr_len); + + fchs = (struct fchs_s *)uf_buf; + + list_del(&uf->qe); /* dequeue from posted queue */ + + uf->data_ptr = buf; + uf->data_len = m->xfr_len; + + bfa_assert(uf->data_len >= sizeof(struct fchs_s)); + + if (uf->data_len == sizeof(struct fchs_s)) { + bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_UF, BFA_PL_EID_RX, + uf->data_len, (struct fchs_s *)buf); + } else { + u32 pld_w0 = *((u32 *) (buf + sizeof(struct fchs_s))); + bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_UF, + BFA_PL_EID_RX, uf->data_len, + (struct fchs_s *)buf, pld_w0); + } + + if (bfa->fcs) + __bfa_cb_uf_recv(uf, BFA_TRUE); + else + bfa_cb_queue(bfa, &uf->hcb_qe, __bfa_cb_uf_recv, uf); +} + +static void +bfa_uf_stop(struct bfa_s *bfa) +{ +} + +static void +bfa_uf_iocdisable(struct bfa_s *bfa) +{ + struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa); + struct bfa_uf_s *uf; + struct list_head *qe, *qen; + + list_for_each_safe(qe, qen, &ufm->uf_posted_q) { + uf = (struct bfa_uf_s *) qe; + list_del(&uf->qe); + bfa_uf_put(ufm, uf); + } +} + +static void +bfa_uf_start(struct bfa_s *bfa) +{ + bfa_uf_post_all(BFA_UF_MOD(bfa)); +} + + + +/** + * hal_uf_api + */ + +/** + * Register handler for all unsolicted recieve frames. + * + * @param[in] bfa BFA instance + * @param[in] ufrecv receive handler function + * @param[in] cbarg receive handler arg + */ +void +bfa_uf_recv_register(struct bfa_s *bfa, bfa_cb_uf_recv_t ufrecv, void *cbarg) +{ + struct bfa_uf_mod_s *ufm = BFA_UF_MOD(bfa); + + ufm->ufrecv = ufrecv; + ufm->cbarg = cbarg; +} + +/** + * Free an unsolicited frame back to BFA. + * + * @param[in] uf unsolicited frame to be freed + * + * @return None + */ +void +bfa_uf_free(struct bfa_uf_s *uf) +{ + bfa_uf_put(BFA_UF_MOD(uf->bfa), uf); + bfa_uf_post_all(BFA_UF_MOD(uf->bfa)); +} + + + +/** + * uf_pub BFA uf module public functions + */ +void +bfa_uf_isr(struct bfa_s *bfa, struct bfi_msg_s *msg) +{ + bfa_trc(bfa, msg->mhdr.msg_id); + + switch (msg->mhdr.msg_id) { + case BFI_UF_I2H_FRM_RCVD: + uf_recv(bfa, (struct bfi_uf_frm_rcvd_s *) msg); + break; + + default: + bfa_trc(bfa, msg->mhdr.msg_id); + bfa_assert(0); + } +} + + |