+++ /dev/null
-/*
- * Copyright (c) 2005-2009 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.
- */
-
-/**
- * bfa_uf.c BFA unsolicited frame receive implementation
- */
-
-#include <bfa.h>
-#include <bfa_svc.h>
-#include <bfi/bfi_uf.h>
-#include <cs/bfa_debug.h>
-
-BFA_TRC_FILE(HAL, UF);
-BFA_MODULE(uf);
-
-/*
- *****************************************************************************
- * 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));
-}
-
-
-
-/**
- * bfa_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);
- }
-}
-
-
projects / mv-sheeva.git / blobdiff