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783 lines
18 KiB
783 lines
18 KiB
15 years ago
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/*
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* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
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* All rights reserved
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* www.brocade.com
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*
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* Linux driver for Brocade Fibre Channel Host Bus Adapter.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (GPL) Version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <bfa.h>
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#include <bfi/bfi_uf.h>
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#include <cs/bfa_debug.h>
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BFA_TRC_FILE(HAL, FCXP);
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BFA_MODULE(fcxp);
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/**
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* forward declarations
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*/
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static void __bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete);
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static void hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
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struct bfi_fcxp_send_rsp_s *fcxp_rsp);
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static void hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen,
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struct bfa_fcxp_s *fcxp, struct fchs_s *fchs);
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static void bfa_fcxp_qresume(void *cbarg);
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static void bfa_fcxp_queue(struct bfa_fcxp_s *fcxp,
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struct bfi_fcxp_send_req_s *send_req);
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/**
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* fcxp_pvt BFA FCXP private functions
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*/
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static void
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claim_fcxp_req_rsp_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi)
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{
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u8 *dm_kva = NULL;
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u64 dm_pa;
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u32 buf_pool_sz;
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dm_kva = bfa_meminfo_dma_virt(mi);
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dm_pa = bfa_meminfo_dma_phys(mi);
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buf_pool_sz = mod->req_pld_sz * mod->num_fcxps;
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/*
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* Initialize the fcxp req payload list
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*/
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mod->req_pld_list_kva = dm_kva;
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mod->req_pld_list_pa = dm_pa;
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dm_kva += buf_pool_sz;
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dm_pa += buf_pool_sz;
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bfa_os_memset(mod->req_pld_list_kva, 0, buf_pool_sz);
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/*
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* Initialize the fcxp rsp payload list
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*/
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buf_pool_sz = mod->rsp_pld_sz * mod->num_fcxps;
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mod->rsp_pld_list_kva = dm_kva;
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mod->rsp_pld_list_pa = dm_pa;
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dm_kva += buf_pool_sz;
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dm_pa += buf_pool_sz;
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bfa_os_memset(mod->rsp_pld_list_kva, 0, buf_pool_sz);
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bfa_meminfo_dma_virt(mi) = dm_kva;
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bfa_meminfo_dma_phys(mi) = dm_pa;
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}
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static void
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claim_fcxps_mem(struct bfa_fcxp_mod_s *mod, struct bfa_meminfo_s *mi)
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{
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u16 i;
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struct bfa_fcxp_s *fcxp;
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fcxp = (struct bfa_fcxp_s *) bfa_meminfo_kva(mi);
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bfa_os_memset(fcxp, 0, sizeof(struct bfa_fcxp_s) * mod->num_fcxps);
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INIT_LIST_HEAD(&mod->fcxp_free_q);
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INIT_LIST_HEAD(&mod->fcxp_active_q);
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mod->fcxp_list = fcxp;
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for (i = 0; i < mod->num_fcxps; i++) {
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fcxp->fcxp_mod = mod;
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fcxp->fcxp_tag = i;
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list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
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bfa_reqq_winit(&fcxp->reqq_wqe, bfa_fcxp_qresume, fcxp);
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fcxp->reqq_waiting = BFA_FALSE;
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fcxp = fcxp + 1;
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}
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bfa_meminfo_kva(mi) = (void *)fcxp;
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}
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static void
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bfa_fcxp_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *ndm_len,
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u32 *dm_len)
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{
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u16 num_fcxp_reqs = cfg->fwcfg.num_fcxp_reqs;
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if (num_fcxp_reqs == 0)
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return;
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/*
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* Account for req/rsp payload
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*/
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*dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs;
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if (cfg->drvcfg.min_cfg)
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*dm_len += BFA_FCXP_MAX_IBUF_SZ * num_fcxp_reqs;
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else
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*dm_len += BFA_FCXP_MAX_LBUF_SZ * num_fcxp_reqs;
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/*
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* Account for fcxp structs
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*/
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*ndm_len += sizeof(struct bfa_fcxp_s) * num_fcxp_reqs;
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}
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static void
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bfa_fcxp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
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struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
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{
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struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
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bfa_os_memset(mod, 0, sizeof(struct bfa_fcxp_mod_s));
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mod->bfa = bfa;
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mod->num_fcxps = cfg->fwcfg.num_fcxp_reqs;
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/**
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* Initialize FCXP request and response payload sizes.
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*/
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mod->req_pld_sz = mod->rsp_pld_sz = BFA_FCXP_MAX_IBUF_SZ;
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if (!cfg->drvcfg.min_cfg)
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mod->rsp_pld_sz = BFA_FCXP_MAX_LBUF_SZ;
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INIT_LIST_HEAD(&mod->wait_q);
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claim_fcxp_req_rsp_mem(mod, meminfo);
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claim_fcxps_mem(mod, meminfo);
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}
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static void
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bfa_fcxp_initdone(struct bfa_s *bfa)
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{
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}
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static void
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bfa_fcxp_detach(struct bfa_s *bfa)
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{
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}
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static void
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bfa_fcxp_start(struct bfa_s *bfa)
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{
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}
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static void
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bfa_fcxp_stop(struct bfa_s *bfa)
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{
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}
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static void
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bfa_fcxp_iocdisable(struct bfa_s *bfa)
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{
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struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
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struct bfa_fcxp_s *fcxp;
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struct list_head *qe, *qen;
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list_for_each_safe(qe, qen, &mod->fcxp_active_q) {
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fcxp = (struct bfa_fcxp_s *) qe;
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if (fcxp->caller == NULL) {
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fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
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BFA_STATUS_IOC_FAILURE, 0, 0, NULL);
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bfa_fcxp_free(fcxp);
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} else {
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fcxp->rsp_status = BFA_STATUS_IOC_FAILURE;
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bfa_cb_queue(bfa, &fcxp->hcb_qe,
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__bfa_fcxp_send_cbfn, fcxp);
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}
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}
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}
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static struct bfa_fcxp_s *
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bfa_fcxp_get(struct bfa_fcxp_mod_s *fm)
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{
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struct bfa_fcxp_s *fcxp;
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bfa_q_deq(&fm->fcxp_free_q, &fcxp);
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if (fcxp)
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list_add_tail(&fcxp->qe, &fm->fcxp_active_q);
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return (fcxp);
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}
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static void
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bfa_fcxp_put(struct bfa_fcxp_s *fcxp)
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{
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struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
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struct bfa_fcxp_wqe_s *wqe;
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bfa_q_deq(&mod->wait_q, &wqe);
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if (wqe) {
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bfa_trc(mod->bfa, fcxp->fcxp_tag);
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wqe->alloc_cbfn(wqe->alloc_cbarg, fcxp);
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return;
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}
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bfa_assert(bfa_q_is_on_q(&mod->fcxp_active_q, fcxp));
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list_del(&fcxp->qe);
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list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
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}
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static void
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bfa_fcxp_null_comp(void *bfad_fcxp, struct bfa_fcxp_s *fcxp, void *cbarg,
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bfa_status_t req_status, u32 rsp_len,
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u32 resid_len, struct fchs_s *rsp_fchs)
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{
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/**discarded fcxp completion */
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}
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static void
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__bfa_fcxp_send_cbfn(void *cbarg, bfa_boolean_t complete)
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{
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struct bfa_fcxp_s *fcxp = cbarg;
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if (complete) {
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fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
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fcxp->rsp_status, fcxp->rsp_len,
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fcxp->residue_len, &fcxp->rsp_fchs);
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} else {
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bfa_fcxp_free(fcxp);
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}
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}
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static void
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hal_fcxp_send_comp(struct bfa_s *bfa, struct bfi_fcxp_send_rsp_s *fcxp_rsp)
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{
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struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
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struct bfa_fcxp_s *fcxp;
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u16 fcxp_tag = bfa_os_ntohs(fcxp_rsp->fcxp_tag);
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bfa_trc(bfa, fcxp_tag);
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fcxp_rsp->rsp_len = bfa_os_ntohl(fcxp_rsp->rsp_len);
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/**
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* @todo f/w should not set residue to non-0 when everything
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* is received.
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*/
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if (fcxp_rsp->req_status == BFA_STATUS_OK)
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fcxp_rsp->residue_len = 0;
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else
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fcxp_rsp->residue_len = bfa_os_ntohl(fcxp_rsp->residue_len);
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fcxp = BFA_FCXP_FROM_TAG(mod, fcxp_tag);
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bfa_assert(fcxp->send_cbfn != NULL);
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hal_fcxp_rx_plog(mod->bfa, fcxp, fcxp_rsp);
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if (fcxp->send_cbfn != NULL) {
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if (fcxp->caller == NULL) {
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bfa_trc(mod->bfa, fcxp->fcxp_tag);
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fcxp->send_cbfn(fcxp->caller, fcxp, fcxp->send_cbarg,
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fcxp_rsp->req_status, fcxp_rsp->rsp_len,
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fcxp_rsp->residue_len, &fcxp_rsp->fchs);
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/*
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* fcxp automatically freed on return from the callback
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*/
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bfa_fcxp_free(fcxp);
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} else {
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bfa_trc(mod->bfa, fcxp->fcxp_tag);
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fcxp->rsp_status = fcxp_rsp->req_status;
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fcxp->rsp_len = fcxp_rsp->rsp_len;
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fcxp->residue_len = fcxp_rsp->residue_len;
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fcxp->rsp_fchs = fcxp_rsp->fchs;
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bfa_cb_queue(bfa, &fcxp->hcb_qe,
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__bfa_fcxp_send_cbfn, fcxp);
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}
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} else {
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bfa_trc(bfa, fcxp_tag);
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}
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}
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static void
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hal_fcxp_set_local_sges(struct bfi_sge_s *sge, u32 reqlen, u64 req_pa)
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{
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union bfi_addr_u sga_zero = { {0} };
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sge->sg_len = reqlen;
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sge->flags = BFI_SGE_DATA_LAST;
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bfa_dma_addr_set(sge[0].sga, req_pa);
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bfa_sge_to_be(sge);
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sge++;
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sge->sga = sga_zero;
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sge->sg_len = reqlen;
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sge->flags = BFI_SGE_PGDLEN;
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bfa_sge_to_be(sge);
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}
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static void
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hal_fcxp_tx_plog(struct bfa_s *bfa, u32 reqlen, struct bfa_fcxp_s *fcxp,
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struct fchs_s *fchs)
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{
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/*
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* TODO: TX ox_id
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*/
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if (reqlen > 0) {
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if (fcxp->use_ireqbuf) {
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u32 pld_w0 =
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*((u32 *) BFA_FCXP_REQ_PLD(fcxp));
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bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
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BFA_PL_EID_TX,
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reqlen + sizeof(struct fchs_s), fchs, pld_w0);
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} else {
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bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
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BFA_PL_EID_TX, reqlen + sizeof(struct fchs_s),
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fchs);
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}
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} else {
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bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_TX,
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reqlen + sizeof(struct fchs_s), fchs);
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}
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}
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static void
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hal_fcxp_rx_plog(struct bfa_s *bfa, struct bfa_fcxp_s *fcxp,
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struct bfi_fcxp_send_rsp_s *fcxp_rsp)
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{
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if (fcxp_rsp->rsp_len > 0) {
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if (fcxp->use_irspbuf) {
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u32 pld_w0 =
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*((u32 *) BFA_FCXP_RSP_PLD(fcxp));
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bfa_plog_fchdr_and_pl(bfa->plog, BFA_PL_MID_HAL_FCXP,
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BFA_PL_EID_RX,
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(u16) fcxp_rsp->rsp_len,
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&fcxp_rsp->fchs, pld_w0);
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} else {
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bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP,
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BFA_PL_EID_RX,
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(u16) fcxp_rsp->rsp_len,
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&fcxp_rsp->fchs);
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}
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} else {
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bfa_plog_fchdr(bfa->plog, BFA_PL_MID_HAL_FCXP, BFA_PL_EID_RX,
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(u16) fcxp_rsp->rsp_len, &fcxp_rsp->fchs);
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}
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}
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/**
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* Handler to resume sending fcxp when space in available in cpe queue.
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*/
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static void
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bfa_fcxp_qresume(void *cbarg)
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{
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struct bfa_fcxp_s *fcxp = cbarg;
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struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
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struct bfi_fcxp_send_req_s *send_req;
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fcxp->reqq_waiting = BFA_FALSE;
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send_req = bfa_reqq_next(bfa, BFA_REQQ_FCXP);
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bfa_fcxp_queue(fcxp, send_req);
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}
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/**
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* Queue fcxp send request to foimrware.
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*/
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static void
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bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, struct bfi_fcxp_send_req_s *send_req)
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{
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struct bfa_s *bfa = fcxp->fcxp_mod->bfa;
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struct bfa_fcxp_req_info_s *reqi = &fcxp->req_info;
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||
|
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;
|
||
|
u32 nreq_sgpg, nrsp_sgpg;
|
||
|
|
||
|
bfa_assert(bfa != NULL);
|
||
|
|
||
|
fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa));
|
||
|
if (fcxp == NULL)
|
||
|
return (NULL);
|
||
|
|
||
|
bfa_trc(bfa, fcxp->fcxp_tag);
|
||
|
|
||
|
fcxp->caller = caller;
|
||
|
|
||
|
if (nreq_sgles == 0) {
|
||
|
fcxp->use_ireqbuf = 1;
|
||
|
} else {
|
||
|
bfa_assert(req_sga_cbfn != NULL);
|
||
|
bfa_assert(req_sglen_cbfn != NULL);
|
||
|
|
||
|
fcxp->use_ireqbuf = 0;
|
||
|
fcxp->req_sga_cbfn = req_sga_cbfn;
|
||
|
fcxp->req_sglen_cbfn = req_sglen_cbfn;
|
||
|
|
||
|
fcxp->nreq_sgles = nreq_sgles;
|
||
|
|
||
|
/*
|
||
|
* alloc required sgpgs
|
||
|
*/
|
||
|
if (nreq_sgles > BFI_SGE_INLINE) {
|
||
|
nreq_sgpg = BFA_SGPG_NPAGE(nreq_sgles);
|
||
|
|
||
|
if (bfa_sgpg_malloc
|
||
|
(bfa, &fcxp->req_sgpg_q, nreq_sgpg)
|
||
|
!= BFA_STATUS_OK) {
|
||
|
/* bfa_sgpg_wait(bfa, &fcxp->req_sgpg_wqe,
|
||
|
nreq_sgpg); */
|
||
|
/*
|
||
|
* TODO
|
||
|
*/
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (nrsp_sgles == 0) {
|
||
|
fcxp->use_irspbuf = 1;
|
||
|
} else {
|
||
|
bfa_assert(rsp_sga_cbfn != NULL);
|
||
|
bfa_assert(rsp_sglen_cbfn != NULL);
|
||
|
|
||
|
fcxp->use_irspbuf = 0;
|
||
|
fcxp->rsp_sga_cbfn = rsp_sga_cbfn;
|
||
|
fcxp->rsp_sglen_cbfn = rsp_sglen_cbfn;
|
||
|
|
||
|
fcxp->nrsp_sgles = nrsp_sgles;
|
||
|
/*
|
||
|
* alloc required sgpgs
|
||
|
*/
|
||
|
if (nrsp_sgles > BFI_SGE_INLINE) {
|
||
|
nrsp_sgpg = BFA_SGPG_NPAGE(nreq_sgles);
|
||
|
|
||
|
if (bfa_sgpg_malloc
|
||
|
(bfa, &fcxp->rsp_sgpg_q, nrsp_sgpg)
|
||
|
!= BFA_STATUS_OK) {
|
||
|
/* bfa_sgpg_wait(bfa, &fcxp->rsp_sgpg_wqe,
|
||
|
nrsp_sgpg); */
|
||
|
/*
|
||
|
* TODO
|
||
|
*/
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
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
|
||
|
*/
|
||
|
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_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)
|
||
|
{
|
||
|
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;
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
|