167b40dccSKalderon, Michal /* QLogic qed NIC Driver 267b40dccSKalderon, Michal * Copyright (c) 2015-2017 QLogic Corporation 367b40dccSKalderon, Michal * 467b40dccSKalderon, Michal * This software is available to you under a choice of one of two 567b40dccSKalderon, Michal * licenses. You may choose to be licensed under the terms of the GNU 667b40dccSKalderon, Michal * General Public License (GPL) Version 2, available from the file 767b40dccSKalderon, Michal * COPYING in the main directory of this source tree, or the 867b40dccSKalderon, Michal * OpenIB.org BSD license below: 967b40dccSKalderon, Michal * 1067b40dccSKalderon, Michal * Redistribution and use in source and binary forms, with or 1167b40dccSKalderon, Michal * without modification, are permitted provided that the following 1267b40dccSKalderon, Michal * conditions are met: 1367b40dccSKalderon, Michal * 1467b40dccSKalderon, Michal * - Redistributions of source code must retain the above 1567b40dccSKalderon, Michal * copyright notice, this list of conditions and the following 1667b40dccSKalderon, Michal * disclaimer. 1767b40dccSKalderon, Michal * 1867b40dccSKalderon, Michal * - Redistributions in binary form must reproduce the above 1967b40dccSKalderon, Michal * copyright notice, this list of conditions and the following 2067b40dccSKalderon, Michal * disclaimer in the documentation and /or other materials 2167b40dccSKalderon, Michal * provided with the distribution. 2267b40dccSKalderon, Michal * 2367b40dccSKalderon, Michal * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 2467b40dccSKalderon, Michal * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 2567b40dccSKalderon, Michal * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 2667b40dccSKalderon, Michal * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 2767b40dccSKalderon, Michal * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 2867b40dccSKalderon, Michal * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 2967b40dccSKalderon, Michal * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 3067b40dccSKalderon, Michal * SOFTWARE. 3167b40dccSKalderon, Michal */ 32b5c29ca7SKalderon, Michal #include <linux/if_ether.h> 33b5c29ca7SKalderon, Michal #include <linux/if_vlan.h> 3465a91a6cSKalderon, Michal #include <linux/ip.h> 3565a91a6cSKalderon, Michal #include <linux/ipv6.h> 3665a91a6cSKalderon, Michal #include <linux/spinlock.h> 3765a91a6cSKalderon, Michal #include <linux/tcp.h> 3867b40dccSKalderon, Michal #include "qed_cxt.h" 3967b40dccSKalderon, Michal #include "qed_hw.h" 40b5c29ca7SKalderon, Michal #include "qed_ll2.h" 4167b40dccSKalderon, Michal #include "qed_rdma.h" 4267b40dccSKalderon, Michal #include "qed_reg_addr.h" 4367b40dccSKalderon, Michal #include "qed_sp.h" 44d1abfd0bSMichal Kalderon #include "qed_ooo.h" 4567b40dccSKalderon, Michal 4667b40dccSKalderon, Michal #define QED_IWARP_ORD_DEFAULT 32 4767b40dccSKalderon, Michal #define QED_IWARP_IRD_DEFAULT 32 48456a5849SKalderon, Michal #define QED_IWARP_MAX_FW_MSS 4120 49456a5849SKalderon, Michal 50456a5849SKalderon, Michal #define QED_EP_SIG 0xecabcdef 51456a5849SKalderon, Michal 52456a5849SKalderon, Michal struct mpa_v2_hdr { 53456a5849SKalderon, Michal __be16 ird; 54456a5849SKalderon, Michal __be16 ord; 55456a5849SKalderon, Michal }; 56456a5849SKalderon, Michal 57456a5849SKalderon, Michal #define MPA_V2_PEER2PEER_MODEL 0x8000 58456a5849SKalderon, Michal #define MPA_V2_SEND_RTR 0x4000 /* on ird */ 59456a5849SKalderon, Michal #define MPA_V2_READ_RTR 0x4000 /* on ord */ 60456a5849SKalderon, Michal #define MPA_V2_WRITE_RTR 0x8000 61456a5849SKalderon, Michal #define MPA_V2_IRD_ORD_MASK 0x3FFF 62456a5849SKalderon, Michal 63456a5849SKalderon, Michal #define MPA_REV2(_mpa_rev) ((_mpa_rev) == MPA_NEGOTIATION_TYPE_ENHANCED) 64456a5849SKalderon, Michal 65456a5849SKalderon, Michal #define QED_IWARP_INVALID_TCP_CID 0xffffffff 66fbce23a8SMichal Kalderon 67fbce23a8SMichal Kalderon #define QED_IWARP_RCV_WND_SIZE_DEF_BB_2P (200 * 1024) 68fbce23a8SMichal Kalderon #define QED_IWARP_RCV_WND_SIZE_DEF_BB_4P (100 * 1024) 69fbce23a8SMichal Kalderon #define QED_IWARP_RCV_WND_SIZE_DEF_AH_2P (150 * 1024) 70fbce23a8SMichal Kalderon #define QED_IWARP_RCV_WND_SIZE_DEF_AH_4P (90 * 1024) 71fbce23a8SMichal Kalderon 72da090917STomer Tayar #define QED_IWARP_RCV_WND_SIZE_MIN (0xffff) 73456a5849SKalderon, Michal #define TIMESTAMP_HEADER_SIZE (12) 74da090917STomer Tayar #define QED_IWARP_MAX_FIN_RT_DEFAULT (2) 75456a5849SKalderon, Michal 7667b40dccSKalderon, Michal #define QED_IWARP_TS_EN BIT(0) 77456a5849SKalderon, Michal #define QED_IWARP_DA_EN BIT(1) 7867b40dccSKalderon, Michal #define QED_IWARP_PARAM_CRC_NEEDED (1) 7967b40dccSKalderon, Michal #define QED_IWARP_PARAM_P2P (1) 8067b40dccSKalderon, Michal 81da090917STomer Tayar #define QED_IWARP_DEF_MAX_RT_TIME (0) 82da090917STomer Tayar #define QED_IWARP_DEF_CWND_FACTOR (4) 83da090917STomer Tayar #define QED_IWARP_DEF_KA_MAX_PROBE_CNT (5) 84da090917STomer Tayar #define QED_IWARP_DEF_KA_TIMEOUT (1200000) /* 20 min */ 85da090917STomer Tayar #define QED_IWARP_DEF_KA_INTERVAL (1000) /* 1 sec */ 86da090917STomer Tayar 8767b40dccSKalderon, Michal static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn, 8867b40dccSKalderon, Michal u8 fw_event_code, u16 echo, 8967b40dccSKalderon, Michal union event_ring_data *data, 9067b40dccSKalderon, Michal u8 fw_return_code); 9167b40dccSKalderon, Michal 9267b40dccSKalderon, Michal /* Override devinfo with iWARP specific values */ 9367b40dccSKalderon, Michal void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn) 9467b40dccSKalderon, Michal { 9567b40dccSKalderon, Michal struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; 9667b40dccSKalderon, Michal 9767b40dccSKalderon, Michal dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE; 9867b40dccSKalderon, Michal dev->max_qp = min_t(u32, 9967b40dccSKalderon, Michal IWARP_MAX_QPS, 100456a5849SKalderon, Michal p_hwfn->p_rdma_info->num_qps) - 101456a5849SKalderon, Michal QED_IWARP_PREALLOC_CNT; 10267b40dccSKalderon, Michal 10367b40dccSKalderon, Michal dev->max_cq = dev->max_qp; 10467b40dccSKalderon, Michal 10567b40dccSKalderon, Michal dev->max_qp_resp_rd_atomic_resc = QED_IWARP_IRD_DEFAULT; 10667b40dccSKalderon, Michal dev->max_qp_req_rd_atomic_resc = QED_IWARP_ORD_DEFAULT; 10767b40dccSKalderon, Michal } 10867b40dccSKalderon, Michal 10967b40dccSKalderon, Michal void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 11067b40dccSKalderon, Michal { 11167b40dccSKalderon, Michal p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_TCP; 11267b40dccSKalderon, Michal qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 1); 11367b40dccSKalderon, Michal p_hwfn->b_rdma_enabled_in_prs = true; 11467b40dccSKalderon, Michal } 11567b40dccSKalderon, Michal 116456a5849SKalderon, Michal /* We have two cid maps, one for tcp which should be used only from passive 117456a5849SKalderon, Michal * syn processing and replacing a pre-allocated ep in the list. The second 118456a5849SKalderon, Michal * for active tcp and for QPs. 119456a5849SKalderon, Michal */ 12067b40dccSKalderon, Michal static void qed_iwarp_cid_cleaned(struct qed_hwfn *p_hwfn, u32 cid) 12167b40dccSKalderon, Michal { 12267b40dccSKalderon, Michal cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); 12367b40dccSKalderon, Michal 12467b40dccSKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->lock); 125456a5849SKalderon, Michal 126456a5849SKalderon, Michal if (cid < QED_IWARP_PREALLOC_CNT) 127456a5849SKalderon, Michal qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 128456a5849SKalderon, Michal cid); 129456a5849SKalderon, Michal else 13067b40dccSKalderon, Michal qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); 131456a5849SKalderon, Michal 13267b40dccSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 13367b40dccSKalderon, Michal } 13467b40dccSKalderon, Michal 135da090917STomer Tayar void 136da090917STomer Tayar qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn, 137da090917STomer Tayar struct iwarp_init_func_ramrod_data *p_ramrod) 138d1abfd0bSMichal Kalderon { 139da090917STomer Tayar p_ramrod->iwarp.ll2_ooo_q_index = 140997af5dfSMichal Kalderon RESC_START(p_hwfn, QED_LL2_RAM_QUEUE) + 141d1abfd0bSMichal Kalderon p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle; 142da090917STomer Tayar 143da090917STomer Tayar p_ramrod->tcp.max_fin_rt = QED_IWARP_MAX_FIN_RT_DEFAULT; 144da090917STomer Tayar 145da090917STomer Tayar return; 146d1abfd0bSMichal Kalderon } 147d1abfd0bSMichal Kalderon 14867b40dccSKalderon, Michal static int qed_iwarp_alloc_cid(struct qed_hwfn *p_hwfn, u32 *cid) 14967b40dccSKalderon, Michal { 15067b40dccSKalderon, Michal int rc; 15167b40dccSKalderon, Michal 15267b40dccSKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->lock); 15367b40dccSKalderon, Michal rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); 15467b40dccSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 15567b40dccSKalderon, Michal if (rc) { 15667b40dccSKalderon, Michal DP_NOTICE(p_hwfn, "Failed in allocating iwarp cid\n"); 15767b40dccSKalderon, Michal return rc; 15867b40dccSKalderon, Michal } 15967b40dccSKalderon, Michal *cid += qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); 16067b40dccSKalderon, Michal 16167b40dccSKalderon, Michal rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *cid); 16267b40dccSKalderon, Michal if (rc) 16367b40dccSKalderon, Michal qed_iwarp_cid_cleaned(p_hwfn, *cid); 16467b40dccSKalderon, Michal 16567b40dccSKalderon, Michal return rc; 16667b40dccSKalderon, Michal } 16767b40dccSKalderon, Michal 168456a5849SKalderon, Michal static void qed_iwarp_set_tcp_cid(struct qed_hwfn *p_hwfn, u32 cid) 169456a5849SKalderon, Michal { 170456a5849SKalderon, Michal cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); 171456a5849SKalderon, Michal 172456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->lock); 173456a5849SKalderon, Michal qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid); 174456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 175456a5849SKalderon, Michal } 176456a5849SKalderon, Michal 177456a5849SKalderon, Michal /* This function allocates a cid for passive tcp (called from syn receive) 178456a5849SKalderon, Michal * the reason it's separate from the regular cid allocation is because it 179456a5849SKalderon, Michal * is assured that these cids already have ilt allocated. They are preallocated 180456a5849SKalderon, Michal * to ensure that we won't need to allocate memory during syn processing 181456a5849SKalderon, Michal */ 182456a5849SKalderon, Michal static int qed_iwarp_alloc_tcp_cid(struct qed_hwfn *p_hwfn, u32 *cid) 183456a5849SKalderon, Michal { 184456a5849SKalderon, Michal int rc; 185456a5849SKalderon, Michal 186456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->lock); 187456a5849SKalderon, Michal 188456a5849SKalderon, Michal rc = qed_rdma_bmap_alloc_id(p_hwfn, 189456a5849SKalderon, Michal &p_hwfn->p_rdma_info->tcp_cid_map, cid); 190456a5849SKalderon, Michal 191456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 192456a5849SKalderon, Michal 193456a5849SKalderon, Michal if (rc) { 194456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 195456a5849SKalderon, Michal "can't allocate iwarp tcp cid max-count=%d\n", 196456a5849SKalderon, Michal p_hwfn->p_rdma_info->tcp_cid_map.max_count); 197456a5849SKalderon, Michal 198456a5849SKalderon, Michal *cid = QED_IWARP_INVALID_TCP_CID; 199456a5849SKalderon, Michal return rc; 200456a5849SKalderon, Michal } 201456a5849SKalderon, Michal 202456a5849SKalderon, Michal *cid += qed_cxt_get_proto_cid_start(p_hwfn, 203456a5849SKalderon, Michal p_hwfn->p_rdma_info->proto); 204456a5849SKalderon, Michal return 0; 205456a5849SKalderon, Michal } 206456a5849SKalderon, Michal 20767b40dccSKalderon, Michal int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn, 20867b40dccSKalderon, Michal struct qed_rdma_qp *qp, 20967b40dccSKalderon, Michal struct qed_rdma_create_qp_out_params *out_params) 21067b40dccSKalderon, Michal { 21167b40dccSKalderon, Michal struct iwarp_create_qp_ramrod_data *p_ramrod; 21267b40dccSKalderon, Michal struct qed_sp_init_data init_data; 21367b40dccSKalderon, Michal struct qed_spq_entry *p_ent; 21467b40dccSKalderon, Michal u16 physical_queue; 21567b40dccSKalderon, Michal u32 cid; 21667b40dccSKalderon, Michal int rc; 21767b40dccSKalderon, Michal 21867b40dccSKalderon, Michal qp->shared_queue = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 21967b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_SIZE, 22067b40dccSKalderon, Michal &qp->shared_queue_phys_addr, 22167b40dccSKalderon, Michal GFP_KERNEL); 22267b40dccSKalderon, Michal if (!qp->shared_queue) 22367b40dccSKalderon, Michal return -ENOMEM; 22467b40dccSKalderon, Michal 22567b40dccSKalderon, Michal out_params->sq_pbl_virt = (u8 *)qp->shared_queue + 22667b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET; 22767b40dccSKalderon, Michal out_params->sq_pbl_phys = qp->shared_queue_phys_addr + 22867b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET; 22967b40dccSKalderon, Michal out_params->rq_pbl_virt = (u8 *)qp->shared_queue + 23067b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET; 23167b40dccSKalderon, Michal out_params->rq_pbl_phys = qp->shared_queue_phys_addr + 23267b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET; 23367b40dccSKalderon, Michal 23467b40dccSKalderon, Michal rc = qed_iwarp_alloc_cid(p_hwfn, &cid); 23567b40dccSKalderon, Michal if (rc) 23667b40dccSKalderon, Michal goto err1; 23767b40dccSKalderon, Michal 23867b40dccSKalderon, Michal qp->icid = (u16)cid; 23967b40dccSKalderon, Michal 24067b40dccSKalderon, Michal memset(&init_data, 0, sizeof(init_data)); 24167b40dccSKalderon, Michal init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 24267b40dccSKalderon, Michal init_data.cid = qp->icid; 24367b40dccSKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 24467b40dccSKalderon, Michal 24567b40dccSKalderon, Michal rc = qed_sp_init_request(p_hwfn, &p_ent, 24667b40dccSKalderon, Michal IWARP_RAMROD_CMD_ID_CREATE_QP, 24767b40dccSKalderon, Michal PROTOCOLID_IWARP, &init_data); 24867b40dccSKalderon, Michal if (rc) 24967b40dccSKalderon, Michal goto err2; 25067b40dccSKalderon, Michal 25167b40dccSKalderon, Michal p_ramrod = &p_ent->ramrod.iwarp_create_qp; 25267b40dccSKalderon, Michal 25367b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, 25467b40dccSKalderon, Michal IWARP_CREATE_QP_RAMROD_DATA_FMR_AND_RESERVED_EN, 25567b40dccSKalderon, Michal qp->fmr_and_reserved_lkey); 25667b40dccSKalderon, Michal 25767b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, 25867b40dccSKalderon, Michal IWARP_CREATE_QP_RAMROD_DATA_SIGNALED_COMP, qp->signal_all); 25967b40dccSKalderon, Michal 26067b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, 26167b40dccSKalderon, Michal IWARP_CREATE_QP_RAMROD_DATA_RDMA_RD_EN, 26267b40dccSKalderon, Michal qp->incoming_rdma_read_en); 26367b40dccSKalderon, Michal 26467b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, 26567b40dccSKalderon, Michal IWARP_CREATE_QP_RAMROD_DATA_RDMA_WR_EN, 26667b40dccSKalderon, Michal qp->incoming_rdma_write_en); 26767b40dccSKalderon, Michal 26867b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, 26967b40dccSKalderon, Michal IWARP_CREATE_QP_RAMROD_DATA_ATOMIC_EN, 27067b40dccSKalderon, Michal qp->incoming_atomic_en); 27167b40dccSKalderon, Michal 27267b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, 27367b40dccSKalderon, Michal IWARP_CREATE_QP_RAMROD_DATA_SRQ_FLG, qp->use_srq); 27467b40dccSKalderon, Michal 27567b40dccSKalderon, Michal p_ramrod->pd = qp->pd; 27667b40dccSKalderon, Michal p_ramrod->sq_num_pages = qp->sq_num_pages; 27767b40dccSKalderon, Michal p_ramrod->rq_num_pages = qp->rq_num_pages; 27867b40dccSKalderon, Michal 27939dbc646SYuval Bason p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id); 28039dbc646SYuval Bason p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid); 28167b40dccSKalderon, Michal p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi); 28267b40dccSKalderon, Michal p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo); 28367b40dccSKalderon, Michal 28467b40dccSKalderon, Michal p_ramrod->cq_cid_for_sq = 28567b40dccSKalderon, Michal cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id); 28667b40dccSKalderon, Michal p_ramrod->cq_cid_for_rq = 28767b40dccSKalderon, Michal cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->rq_cq_id); 28867b40dccSKalderon, Michal 28967b40dccSKalderon, Michal p_ramrod->dpi = cpu_to_le16(qp->dpi); 29067b40dccSKalderon, Michal 29167b40dccSKalderon, Michal physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); 29267b40dccSKalderon, Michal p_ramrod->physical_q0 = cpu_to_le16(physical_queue); 29367b40dccSKalderon, Michal physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); 29467b40dccSKalderon, Michal p_ramrod->physical_q1 = cpu_to_le16(physical_queue); 29567b40dccSKalderon, Michal 29667b40dccSKalderon, Michal rc = qed_spq_post(p_hwfn, p_ent, NULL); 29767b40dccSKalderon, Michal if (rc) 29867b40dccSKalderon, Michal goto err2; 29967b40dccSKalderon, Michal 30067b40dccSKalderon, Michal return rc; 30167b40dccSKalderon, Michal 30267b40dccSKalderon, Michal err2: 30367b40dccSKalderon, Michal qed_iwarp_cid_cleaned(p_hwfn, cid); 30467b40dccSKalderon, Michal err1: 30567b40dccSKalderon, Michal dma_free_coherent(&p_hwfn->cdev->pdev->dev, 30667b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_SIZE, 30767b40dccSKalderon, Michal qp->shared_queue, qp->shared_queue_phys_addr); 30867b40dccSKalderon, Michal 30967b40dccSKalderon, Michal return rc; 31067b40dccSKalderon, Michal } 31167b40dccSKalderon, Michal 31267b40dccSKalderon, Michal static int qed_iwarp_modify_fw(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) 31367b40dccSKalderon, Michal { 31467b40dccSKalderon, Michal struct iwarp_modify_qp_ramrod_data *p_ramrod; 31567b40dccSKalderon, Michal struct qed_sp_init_data init_data; 31667b40dccSKalderon, Michal struct qed_spq_entry *p_ent; 31767b40dccSKalderon, Michal int rc; 31867b40dccSKalderon, Michal 31967b40dccSKalderon, Michal /* Get SPQ entry */ 32067b40dccSKalderon, Michal memset(&init_data, 0, sizeof(init_data)); 32167b40dccSKalderon, Michal init_data.cid = qp->icid; 32267b40dccSKalderon, Michal init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 32367b40dccSKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 32467b40dccSKalderon, Michal 32567b40dccSKalderon, Michal rc = qed_sp_init_request(p_hwfn, &p_ent, 32667b40dccSKalderon, Michal IWARP_RAMROD_CMD_ID_MODIFY_QP, 32767b40dccSKalderon, Michal p_hwfn->p_rdma_info->proto, &init_data); 32867b40dccSKalderon, Michal if (rc) 32967b40dccSKalderon, Michal return rc; 33067b40dccSKalderon, Michal 33167b40dccSKalderon, Michal p_ramrod = &p_ent->ramrod.iwarp_modify_qp; 33267b40dccSKalderon, Michal SET_FIELD(p_ramrod->flags, IWARP_MODIFY_QP_RAMROD_DATA_STATE_TRANS_EN, 33367b40dccSKalderon, Michal 0x1); 33467b40dccSKalderon, Michal if (qp->iwarp_state == QED_IWARP_QP_STATE_CLOSING) 33567b40dccSKalderon, Michal p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_CLOSING; 33667b40dccSKalderon, Michal else 33767b40dccSKalderon, Michal p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_ERROR; 33867b40dccSKalderon, Michal 33967b40dccSKalderon, Michal rc = qed_spq_post(p_hwfn, p_ent, NULL); 34067b40dccSKalderon, Michal 34167b40dccSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x)rc=%d\n", qp->icid, rc); 34267b40dccSKalderon, Michal 34367b40dccSKalderon, Michal return rc; 34467b40dccSKalderon, Michal } 34567b40dccSKalderon, Michal 34667b40dccSKalderon, Michal enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state) 34767b40dccSKalderon, Michal { 34867b40dccSKalderon, Michal switch (state) { 34967b40dccSKalderon, Michal case QED_ROCE_QP_STATE_RESET: 35067b40dccSKalderon, Michal case QED_ROCE_QP_STATE_INIT: 35167b40dccSKalderon, Michal case QED_ROCE_QP_STATE_RTR: 35267b40dccSKalderon, Michal return QED_IWARP_QP_STATE_IDLE; 35367b40dccSKalderon, Michal case QED_ROCE_QP_STATE_RTS: 35467b40dccSKalderon, Michal return QED_IWARP_QP_STATE_RTS; 35567b40dccSKalderon, Michal case QED_ROCE_QP_STATE_SQD: 35667b40dccSKalderon, Michal return QED_IWARP_QP_STATE_CLOSING; 35767b40dccSKalderon, Michal case QED_ROCE_QP_STATE_ERR: 35867b40dccSKalderon, Michal return QED_IWARP_QP_STATE_ERROR; 35967b40dccSKalderon, Michal case QED_ROCE_QP_STATE_SQE: 36067b40dccSKalderon, Michal return QED_IWARP_QP_STATE_TERMINATE; 36167b40dccSKalderon, Michal default: 36267b40dccSKalderon, Michal return QED_IWARP_QP_STATE_ERROR; 36367b40dccSKalderon, Michal } 36467b40dccSKalderon, Michal } 36567b40dccSKalderon, Michal 36667b40dccSKalderon, Michal static enum qed_roce_qp_state 36767b40dccSKalderon, Michal qed_iwarp2roce_state(enum qed_iwarp_qp_state state) 36867b40dccSKalderon, Michal { 36967b40dccSKalderon, Michal switch (state) { 37067b40dccSKalderon, Michal case QED_IWARP_QP_STATE_IDLE: 37167b40dccSKalderon, Michal return QED_ROCE_QP_STATE_INIT; 37267b40dccSKalderon, Michal case QED_IWARP_QP_STATE_RTS: 37367b40dccSKalderon, Michal return QED_ROCE_QP_STATE_RTS; 37467b40dccSKalderon, Michal case QED_IWARP_QP_STATE_TERMINATE: 37567b40dccSKalderon, Michal return QED_ROCE_QP_STATE_SQE; 37667b40dccSKalderon, Michal case QED_IWARP_QP_STATE_CLOSING: 37767b40dccSKalderon, Michal return QED_ROCE_QP_STATE_SQD; 37867b40dccSKalderon, Michal case QED_IWARP_QP_STATE_ERROR: 37967b40dccSKalderon, Michal return QED_ROCE_QP_STATE_ERR; 38067b40dccSKalderon, Michal default: 38167b40dccSKalderon, Michal return QED_ROCE_QP_STATE_ERR; 38267b40dccSKalderon, Michal } 38367b40dccSKalderon, Michal } 38467b40dccSKalderon, Michal 385ee4c3deaSKrzysztof Wilczynski static const char * const iwarp_state_names[] = { 38667b40dccSKalderon, Michal "IDLE", 38767b40dccSKalderon, Michal "RTS", 38867b40dccSKalderon, Michal "TERMINATE", 38967b40dccSKalderon, Michal "CLOSING", 39067b40dccSKalderon, Michal "ERROR", 39167b40dccSKalderon, Michal }; 39267b40dccSKalderon, Michal 39367b40dccSKalderon, Michal int 39467b40dccSKalderon, Michal qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn, 39567b40dccSKalderon, Michal struct qed_rdma_qp *qp, 39667b40dccSKalderon, Michal enum qed_iwarp_qp_state new_state, bool internal) 39767b40dccSKalderon, Michal { 39867b40dccSKalderon, Michal enum qed_iwarp_qp_state prev_iw_state; 39967b40dccSKalderon, Michal bool modify_fw = false; 40067b40dccSKalderon, Michal int rc = 0; 40167b40dccSKalderon, Michal 40267b40dccSKalderon, Michal /* modify QP can be called from upper-layer or as a result of async 40367b40dccSKalderon, Michal * RST/FIN... therefore need to protect 40467b40dccSKalderon, Michal */ 40567b40dccSKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock); 40667b40dccSKalderon, Michal prev_iw_state = qp->iwarp_state; 40767b40dccSKalderon, Michal 40867b40dccSKalderon, Michal if (prev_iw_state == new_state) { 40967b40dccSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock); 41067b40dccSKalderon, Michal return 0; 41167b40dccSKalderon, Michal } 41267b40dccSKalderon, Michal 41367b40dccSKalderon, Michal switch (prev_iw_state) { 41467b40dccSKalderon, Michal case QED_IWARP_QP_STATE_IDLE: 41567b40dccSKalderon, Michal switch (new_state) { 41667b40dccSKalderon, Michal case QED_IWARP_QP_STATE_RTS: 41767b40dccSKalderon, Michal qp->iwarp_state = QED_IWARP_QP_STATE_RTS; 41867b40dccSKalderon, Michal break; 41967b40dccSKalderon, Michal case QED_IWARP_QP_STATE_ERROR: 42067b40dccSKalderon, Michal qp->iwarp_state = QED_IWARP_QP_STATE_ERROR; 42167b40dccSKalderon, Michal if (!internal) 42267b40dccSKalderon, Michal modify_fw = true; 42367b40dccSKalderon, Michal break; 42467b40dccSKalderon, Michal default: 42567b40dccSKalderon, Michal break; 42667b40dccSKalderon, Michal } 42767b40dccSKalderon, Michal break; 42867b40dccSKalderon, Michal case QED_IWARP_QP_STATE_RTS: 42967b40dccSKalderon, Michal switch (new_state) { 43067b40dccSKalderon, Michal case QED_IWARP_QP_STATE_CLOSING: 43167b40dccSKalderon, Michal if (!internal) 43267b40dccSKalderon, Michal modify_fw = true; 43367b40dccSKalderon, Michal 43467b40dccSKalderon, Michal qp->iwarp_state = QED_IWARP_QP_STATE_CLOSING; 43567b40dccSKalderon, Michal break; 43667b40dccSKalderon, Michal case QED_IWARP_QP_STATE_ERROR: 43767b40dccSKalderon, Michal if (!internal) 43867b40dccSKalderon, Michal modify_fw = true; 43967b40dccSKalderon, Michal qp->iwarp_state = QED_IWARP_QP_STATE_ERROR; 44067b40dccSKalderon, Michal break; 44167b40dccSKalderon, Michal default: 44267b40dccSKalderon, Michal break; 44367b40dccSKalderon, Michal } 44467b40dccSKalderon, Michal break; 44567b40dccSKalderon, Michal case QED_IWARP_QP_STATE_ERROR: 44667b40dccSKalderon, Michal switch (new_state) { 44767b40dccSKalderon, Michal case QED_IWARP_QP_STATE_IDLE: 44867b40dccSKalderon, Michal 44967b40dccSKalderon, Michal qp->iwarp_state = new_state; 45067b40dccSKalderon, Michal break; 45167b40dccSKalderon, Michal case QED_IWARP_QP_STATE_CLOSING: 45267b40dccSKalderon, Michal /* could happen due to race... do nothing.... */ 45367b40dccSKalderon, Michal break; 45467b40dccSKalderon, Michal default: 45567b40dccSKalderon, Michal rc = -EINVAL; 45667b40dccSKalderon, Michal } 45767b40dccSKalderon, Michal break; 45867b40dccSKalderon, Michal case QED_IWARP_QP_STATE_TERMINATE: 45967b40dccSKalderon, Michal case QED_IWARP_QP_STATE_CLOSING: 46067b40dccSKalderon, Michal qp->iwarp_state = new_state; 46167b40dccSKalderon, Michal break; 46267b40dccSKalderon, Michal default: 46367b40dccSKalderon, Michal break; 46467b40dccSKalderon, Michal } 46567b40dccSKalderon, Michal 46667b40dccSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) %s --> %s%s\n", 46767b40dccSKalderon, Michal qp->icid, 46867b40dccSKalderon, Michal iwarp_state_names[prev_iw_state], 46967b40dccSKalderon, Michal iwarp_state_names[qp->iwarp_state], 47067b40dccSKalderon, Michal internal ? "internal" : ""); 47167b40dccSKalderon, Michal 47267b40dccSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock); 47367b40dccSKalderon, Michal 47467b40dccSKalderon, Michal if (modify_fw) 47567b40dccSKalderon, Michal rc = qed_iwarp_modify_fw(p_hwfn, qp); 47667b40dccSKalderon, Michal 47767b40dccSKalderon, Michal return rc; 47867b40dccSKalderon, Michal } 47967b40dccSKalderon, Michal 48067b40dccSKalderon, Michal int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) 48167b40dccSKalderon, Michal { 48267b40dccSKalderon, Michal struct qed_sp_init_data init_data; 48367b40dccSKalderon, Michal struct qed_spq_entry *p_ent; 48467b40dccSKalderon, Michal int rc; 48567b40dccSKalderon, Michal 48667b40dccSKalderon, Michal /* Get SPQ entry */ 48767b40dccSKalderon, Michal memset(&init_data, 0, sizeof(init_data)); 48867b40dccSKalderon, Michal init_data.cid = qp->icid; 48967b40dccSKalderon, Michal init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 49067b40dccSKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 49167b40dccSKalderon, Michal 49267b40dccSKalderon, Michal rc = qed_sp_init_request(p_hwfn, &p_ent, 49367b40dccSKalderon, Michal IWARP_RAMROD_CMD_ID_DESTROY_QP, 49467b40dccSKalderon, Michal p_hwfn->p_rdma_info->proto, &init_data); 49567b40dccSKalderon, Michal if (rc) 49667b40dccSKalderon, Michal return rc; 49767b40dccSKalderon, Michal 49867b40dccSKalderon, Michal rc = qed_spq_post(p_hwfn, p_ent, NULL); 49967b40dccSKalderon, Michal 50067b40dccSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) rc = %d\n", qp->icid, rc); 50167b40dccSKalderon, Michal 50267b40dccSKalderon, Michal return rc; 50367b40dccSKalderon, Michal } 50467b40dccSKalderon, Michal 505456a5849SKalderon, Michal static void qed_iwarp_destroy_ep(struct qed_hwfn *p_hwfn, 506456a5849SKalderon, Michal struct qed_iwarp_ep *ep, 507456a5849SKalderon, Michal bool remove_from_active_list) 508456a5849SKalderon, Michal { 509456a5849SKalderon, Michal dma_free_coherent(&p_hwfn->cdev->pdev->dev, 510456a5849SKalderon, Michal sizeof(*ep->ep_buffer_virt), 511456a5849SKalderon, Michal ep->ep_buffer_virt, ep->ep_buffer_phys); 512456a5849SKalderon, Michal 513456a5849SKalderon, Michal if (remove_from_active_list) { 514456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 515456a5849SKalderon, Michal list_del(&ep->list_entry); 516456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 517456a5849SKalderon, Michal } 518456a5849SKalderon, Michal 519456a5849SKalderon, Michal if (ep->qp) 520456a5849SKalderon, Michal ep->qp->ep = NULL; 521456a5849SKalderon, Michal 522456a5849SKalderon, Michal kfree(ep); 523456a5849SKalderon, Michal } 524456a5849SKalderon, Michal 52567b40dccSKalderon, Michal int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) 52667b40dccSKalderon, Michal { 527fc4c6065SKalderon, Michal struct qed_iwarp_ep *ep = qp->ep; 528fc4c6065SKalderon, Michal int wait_count = 0; 52967b40dccSKalderon, Michal int rc = 0; 53067b40dccSKalderon, Michal 53167b40dccSKalderon, Michal if (qp->iwarp_state != QED_IWARP_QP_STATE_ERROR) { 53267b40dccSKalderon, Michal rc = qed_iwarp_modify_qp(p_hwfn, qp, 53367b40dccSKalderon, Michal QED_IWARP_QP_STATE_ERROR, false); 53467b40dccSKalderon, Michal if (rc) 53567b40dccSKalderon, Michal return rc; 53667b40dccSKalderon, Michal } 53767b40dccSKalderon, Michal 538fc4c6065SKalderon, Michal /* Make sure ep is closed before returning and freeing memory. */ 539fc4c6065SKalderon, Michal if (ep) { 5406117561eSMichal Kalderon while (READ_ONCE(ep->state) != QED_IWARP_EP_CLOSED && 5416117561eSMichal Kalderon wait_count++ < 200) 542fc4c6065SKalderon, Michal msleep(100); 543fc4c6065SKalderon, Michal 544fc4c6065SKalderon, Michal if (ep->state != QED_IWARP_EP_CLOSED) 545fc4c6065SKalderon, Michal DP_NOTICE(p_hwfn, "ep state close timeout state=%x\n", 546fc4c6065SKalderon, Michal ep->state); 547fc4c6065SKalderon, Michal 548fc4c6065SKalderon, Michal qed_iwarp_destroy_ep(p_hwfn, ep, false); 549fc4c6065SKalderon, Michal } 550fc4c6065SKalderon, Michal 55167b40dccSKalderon, Michal rc = qed_iwarp_fw_destroy(p_hwfn, qp); 55267b40dccSKalderon, Michal 55367b40dccSKalderon, Michal if (qp->shared_queue) 55467b40dccSKalderon, Michal dma_free_coherent(&p_hwfn->cdev->pdev->dev, 55567b40dccSKalderon, Michal IWARP_SHARED_QUEUE_PAGE_SIZE, 55667b40dccSKalderon, Michal qp->shared_queue, qp->shared_queue_phys_addr); 55767b40dccSKalderon, Michal 55867b40dccSKalderon, Michal return rc; 55967b40dccSKalderon, Michal } 56067b40dccSKalderon, Michal 561456a5849SKalderon, Michal static int 562456a5849SKalderon, Michal qed_iwarp_create_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep **ep_out) 563456a5849SKalderon, Michal { 564456a5849SKalderon, Michal struct qed_iwarp_ep *ep; 565456a5849SKalderon, Michal int rc; 566456a5849SKalderon, Michal 567456a5849SKalderon, Michal ep = kzalloc(sizeof(*ep), GFP_KERNEL); 568456a5849SKalderon, Michal if (!ep) 569456a5849SKalderon, Michal return -ENOMEM; 570456a5849SKalderon, Michal 571456a5849SKalderon, Michal ep->state = QED_IWARP_EP_INIT; 572456a5849SKalderon, Michal 573456a5849SKalderon, Michal ep->ep_buffer_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 574456a5849SKalderon, Michal sizeof(*ep->ep_buffer_virt), 575456a5849SKalderon, Michal &ep->ep_buffer_phys, 576456a5849SKalderon, Michal GFP_KERNEL); 577456a5849SKalderon, Michal if (!ep->ep_buffer_virt) { 578456a5849SKalderon, Michal rc = -ENOMEM; 579456a5849SKalderon, Michal goto err; 580456a5849SKalderon, Michal } 581456a5849SKalderon, Michal 582456a5849SKalderon, Michal ep->sig = QED_EP_SIG; 583456a5849SKalderon, Michal 584456a5849SKalderon, Michal *ep_out = ep; 585456a5849SKalderon, Michal 586456a5849SKalderon, Michal return 0; 587456a5849SKalderon, Michal 588456a5849SKalderon, Michal err: 589456a5849SKalderon, Michal kfree(ep); 590456a5849SKalderon, Michal return rc; 591456a5849SKalderon, Michal } 592456a5849SKalderon, Michal 593456a5849SKalderon, Michal static void 594456a5849SKalderon, Michal qed_iwarp_print_tcp_ramrod(struct qed_hwfn *p_hwfn, 595456a5849SKalderon, Michal struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod) 596456a5849SKalderon, Michal { 597456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "local_mac=%x %x %x, remote_mac=%x %x %x\n", 598456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_mac_addr_lo, 599456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_mac_addr_mid, 600456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_mac_addr_hi, 601456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_mac_addr_lo, 602456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_mac_addr_mid, 603456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_mac_addr_hi); 604456a5849SKalderon, Michal 605456a5849SKalderon, Michal if (p_tcp_ramrod->tcp.ip_version == TCP_IPV4) { 606456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 60791d1ae47SKalderon, Michal "local_ip=%pI4h:%x, remote_ip=%pI4h:%x, vlan=%x\n", 608456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_ip, 609456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_port, 610456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_ip, 611456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_port, 612456a5849SKalderon, Michal p_tcp_ramrod->tcp.vlan_id); 613456a5849SKalderon, Michal } else { 614456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 61591d1ae47SKalderon, Michal "local_ip=%pI6:%x, remote_ip=%pI6:%x, vlan=%x\n", 616456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_ip, 617456a5849SKalderon, Michal p_tcp_ramrod->tcp.local_port, 618456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_ip, 619456a5849SKalderon, Michal p_tcp_ramrod->tcp.remote_port, 620456a5849SKalderon, Michal p_tcp_ramrod->tcp.vlan_id); 621456a5849SKalderon, Michal } 622456a5849SKalderon, Michal 623456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 624456a5849SKalderon, Michal "flow_label=%x, ttl=%x, tos_or_tc=%x, mss=%x, rcv_wnd_scale=%x, connect_mode=%x, flags=%x\n", 625456a5849SKalderon, Michal p_tcp_ramrod->tcp.flow_label, 626456a5849SKalderon, Michal p_tcp_ramrod->tcp.ttl, 627456a5849SKalderon, Michal p_tcp_ramrod->tcp.tos_or_tc, 628456a5849SKalderon, Michal p_tcp_ramrod->tcp.mss, 629456a5849SKalderon, Michal p_tcp_ramrod->tcp.rcv_wnd_scale, 630456a5849SKalderon, Michal p_tcp_ramrod->tcp.connect_mode, 631456a5849SKalderon, Michal p_tcp_ramrod->tcp.flags); 632456a5849SKalderon, Michal 633456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "syn_ip_payload_length=%x, lo=%x, hi=%x\n", 634456a5849SKalderon, Michal p_tcp_ramrod->tcp.syn_ip_payload_length, 635456a5849SKalderon, Michal p_tcp_ramrod->tcp.syn_phy_addr_lo, 636456a5849SKalderon, Michal p_tcp_ramrod->tcp.syn_phy_addr_hi); 637456a5849SKalderon, Michal } 638456a5849SKalderon, Michal 639456a5849SKalderon, Michal static int 640456a5849SKalderon, Michal qed_iwarp_tcp_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 641456a5849SKalderon, Michal { 642456a5849SKalderon, Michal struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 643456a5849SKalderon, Michal struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod; 644456a5849SKalderon, Michal struct tcp_offload_params_opt2 *tcp; 645456a5849SKalderon, Michal struct qed_sp_init_data init_data; 646456a5849SKalderon, Michal struct qed_spq_entry *p_ent; 647456a5849SKalderon, Michal dma_addr_t async_output_phys; 648456a5849SKalderon, Michal dma_addr_t in_pdata_phys; 649456a5849SKalderon, Michal u16 physical_q; 650456a5849SKalderon, Michal u8 tcp_flags; 651456a5849SKalderon, Michal int rc; 652456a5849SKalderon, Michal int i; 653456a5849SKalderon, Michal 654456a5849SKalderon, Michal memset(&init_data, 0, sizeof(init_data)); 655456a5849SKalderon, Michal init_data.cid = ep->tcp_cid; 656456a5849SKalderon, Michal init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 6574b0fdd7cSKalderon, Michal if (ep->connect_mode == TCP_CONNECT_PASSIVE) 658456a5849SKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_CB; 6594b0fdd7cSKalderon, Michal else 6604b0fdd7cSKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 661456a5849SKalderon, Michal 662456a5849SKalderon, Michal rc = qed_sp_init_request(p_hwfn, &p_ent, 663456a5849SKalderon, Michal IWARP_RAMROD_CMD_ID_TCP_OFFLOAD, 664456a5849SKalderon, Michal PROTOCOLID_IWARP, &init_data); 665456a5849SKalderon, Michal if (rc) 666456a5849SKalderon, Michal return rc; 667456a5849SKalderon, Michal 668456a5849SKalderon, Michal p_tcp_ramrod = &p_ent->ramrod.iwarp_tcp_offload; 669456a5849SKalderon, Michal 670456a5849SKalderon, Michal in_pdata_phys = ep->ep_buffer_phys + 671456a5849SKalderon, Michal offsetof(struct qed_iwarp_ep_memory, in_pdata); 672456a5849SKalderon, Michal DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr, 673456a5849SKalderon, Michal in_pdata_phys); 674456a5849SKalderon, Michal 675456a5849SKalderon, Michal p_tcp_ramrod->iwarp.incoming_ulp_buffer.len = 676456a5849SKalderon, Michal cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata)); 677456a5849SKalderon, Michal 678456a5849SKalderon, Michal async_output_phys = ep->ep_buffer_phys + 679456a5849SKalderon, Michal offsetof(struct qed_iwarp_ep_memory, async_output); 680456a5849SKalderon, Michal DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.async_eqe_output_buf, 681456a5849SKalderon, Michal async_output_phys); 682456a5849SKalderon, Michal 683456a5849SKalderon, Michal p_tcp_ramrod->iwarp.handle_for_async.hi = cpu_to_le32(PTR_HI(ep)); 684456a5849SKalderon, Michal p_tcp_ramrod->iwarp.handle_for_async.lo = cpu_to_le32(PTR_LO(ep)); 685456a5849SKalderon, Michal 686456a5849SKalderon, Michal physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); 687456a5849SKalderon, Michal p_tcp_ramrod->iwarp.physical_q0 = cpu_to_le16(physical_q); 688456a5849SKalderon, Michal physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); 689456a5849SKalderon, Michal p_tcp_ramrod->iwarp.physical_q1 = cpu_to_le16(physical_q); 690456a5849SKalderon, Michal p_tcp_ramrod->iwarp.mpa_mode = iwarp_info->mpa_rev; 691456a5849SKalderon, Michal 692456a5849SKalderon, Michal tcp = &p_tcp_ramrod->tcp; 693456a5849SKalderon, Michal qed_set_fw_mac_addr(&tcp->remote_mac_addr_hi, 694456a5849SKalderon, Michal &tcp->remote_mac_addr_mid, 695456a5849SKalderon, Michal &tcp->remote_mac_addr_lo, ep->remote_mac_addr); 696456a5849SKalderon, Michal qed_set_fw_mac_addr(&tcp->local_mac_addr_hi, &tcp->local_mac_addr_mid, 697456a5849SKalderon, Michal &tcp->local_mac_addr_lo, ep->local_mac_addr); 698456a5849SKalderon, Michal 699456a5849SKalderon, Michal tcp->vlan_id = cpu_to_le16(ep->cm_info.vlan); 700456a5849SKalderon, Michal 701456a5849SKalderon, Michal tcp_flags = p_hwfn->p_rdma_info->iwarp.tcp_flags; 702456a5849SKalderon, Michal tcp->flags = 0; 703456a5849SKalderon, Michal SET_FIELD(tcp->flags, TCP_OFFLOAD_PARAMS_OPT2_TS_EN, 704456a5849SKalderon, Michal !!(tcp_flags & QED_IWARP_TS_EN)); 705456a5849SKalderon, Michal 706456a5849SKalderon, Michal SET_FIELD(tcp->flags, TCP_OFFLOAD_PARAMS_OPT2_DA_EN, 707456a5849SKalderon, Michal !!(tcp_flags & QED_IWARP_DA_EN)); 708456a5849SKalderon, Michal 709456a5849SKalderon, Michal tcp->ip_version = ep->cm_info.ip_version; 710456a5849SKalderon, Michal 711456a5849SKalderon, Michal for (i = 0; i < 4; i++) { 712456a5849SKalderon, Michal tcp->remote_ip[i] = cpu_to_le32(ep->cm_info.remote_ip[i]); 713456a5849SKalderon, Michal tcp->local_ip[i] = cpu_to_le32(ep->cm_info.local_ip[i]); 714456a5849SKalderon, Michal } 715456a5849SKalderon, Michal 716456a5849SKalderon, Michal tcp->remote_port = cpu_to_le16(ep->cm_info.remote_port); 717456a5849SKalderon, Michal tcp->local_port = cpu_to_le16(ep->cm_info.local_port); 718456a5849SKalderon, Michal tcp->mss = cpu_to_le16(ep->mss); 719456a5849SKalderon, Michal tcp->flow_label = 0; 720456a5849SKalderon, Michal tcp->ttl = 0x40; 721456a5849SKalderon, Michal tcp->tos_or_tc = 0; 722456a5849SKalderon, Michal 723da090917STomer Tayar tcp->max_rt_time = QED_IWARP_DEF_MAX_RT_TIME; 724da090917STomer Tayar tcp->cwnd = QED_IWARP_DEF_CWND_FACTOR * tcp->mss; 725da090917STomer Tayar tcp->ka_max_probe_cnt = QED_IWARP_DEF_KA_MAX_PROBE_CNT; 726da090917STomer Tayar tcp->ka_timeout = QED_IWARP_DEF_KA_TIMEOUT; 727da090917STomer Tayar tcp->ka_interval = QED_IWARP_DEF_KA_INTERVAL; 728da090917STomer Tayar 729456a5849SKalderon, Michal tcp->rcv_wnd_scale = (u8)p_hwfn->p_rdma_info->iwarp.rcv_wnd_scale; 730456a5849SKalderon, Michal tcp->connect_mode = ep->connect_mode; 731456a5849SKalderon, Michal 732456a5849SKalderon, Michal if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 733456a5849SKalderon, Michal tcp->syn_ip_payload_length = 734456a5849SKalderon, Michal cpu_to_le16(ep->syn_ip_payload_length); 735456a5849SKalderon, Michal tcp->syn_phy_addr_hi = DMA_HI_LE(ep->syn_phy_addr); 736456a5849SKalderon, Michal tcp->syn_phy_addr_lo = DMA_LO_LE(ep->syn_phy_addr); 737456a5849SKalderon, Michal } 738456a5849SKalderon, Michal 739456a5849SKalderon, Michal qed_iwarp_print_tcp_ramrod(p_hwfn, p_tcp_ramrod); 740456a5849SKalderon, Michal 741456a5849SKalderon, Michal rc = qed_spq_post(p_hwfn, p_ent, NULL); 742456a5849SKalderon, Michal 743456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 744456a5849SKalderon, Michal "EP(0x%x) Offload completed rc=%d\n", ep->tcp_cid, rc); 745456a5849SKalderon, Michal 746456a5849SKalderon, Michal return rc; 747456a5849SKalderon, Michal } 748456a5849SKalderon, Michal 749456a5849SKalderon, Michal static void 750456a5849SKalderon, Michal qed_iwarp_mpa_received(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 751456a5849SKalderon, Michal { 752456a5849SKalderon, Michal struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 753456a5849SKalderon, Michal struct qed_iwarp_cm_event_params params; 754456a5849SKalderon, Michal struct mpa_v2_hdr *mpa_v2; 755456a5849SKalderon, Michal union async_output *async_data; 756456a5849SKalderon, Michal u16 mpa_ord, mpa_ird; 757456a5849SKalderon, Michal u8 mpa_hdr_size = 0; 758456a5849SKalderon, Michal u8 mpa_rev; 759456a5849SKalderon, Michal 760456a5849SKalderon, Michal async_data = &ep->ep_buffer_virt->async_output; 761456a5849SKalderon, Michal 762456a5849SKalderon, Michal mpa_rev = async_data->mpa_request.mpa_handshake_mode; 763456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 764456a5849SKalderon, Michal "private_data_len=%x handshake_mode=%x private_data=(%x)\n", 765456a5849SKalderon, Michal async_data->mpa_request.ulp_data_len, 7664b0fdd7cSKalderon, Michal mpa_rev, *((u32 *)(ep->ep_buffer_virt->in_pdata))); 767456a5849SKalderon, Michal 768456a5849SKalderon, Michal if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { 769456a5849SKalderon, Michal /* Read ord/ird values from private data buffer */ 770456a5849SKalderon, Michal mpa_v2 = (struct mpa_v2_hdr *)ep->ep_buffer_virt->in_pdata; 771456a5849SKalderon, Michal mpa_hdr_size = sizeof(*mpa_v2); 772456a5849SKalderon, Michal 773456a5849SKalderon, Michal mpa_ord = ntohs(mpa_v2->ord); 774456a5849SKalderon, Michal mpa_ird = ntohs(mpa_v2->ird); 775456a5849SKalderon, Michal 776456a5849SKalderon, Michal /* Temprary store in cm_info incoming ord/ird requested, later 777456a5849SKalderon, Michal * replace with negotiated value during accept 778456a5849SKalderon, Michal */ 779456a5849SKalderon, Michal ep->cm_info.ord = (u8)min_t(u16, 780456a5849SKalderon, Michal (mpa_ord & MPA_V2_IRD_ORD_MASK), 781456a5849SKalderon, Michal QED_IWARP_ORD_DEFAULT); 782456a5849SKalderon, Michal 783456a5849SKalderon, Michal ep->cm_info.ird = (u8)min_t(u16, 784456a5849SKalderon, Michal (mpa_ird & MPA_V2_IRD_ORD_MASK), 785456a5849SKalderon, Michal QED_IWARP_IRD_DEFAULT); 786456a5849SKalderon, Michal 787456a5849SKalderon, Michal /* Peer2Peer negotiation */ 788456a5849SKalderon, Michal ep->rtr_type = MPA_RTR_TYPE_NONE; 789456a5849SKalderon, Michal if (mpa_ird & MPA_V2_PEER2PEER_MODEL) { 790456a5849SKalderon, Michal if (mpa_ord & MPA_V2_WRITE_RTR) 791456a5849SKalderon, Michal ep->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE; 792456a5849SKalderon, Michal 793456a5849SKalderon, Michal if (mpa_ord & MPA_V2_READ_RTR) 794456a5849SKalderon, Michal ep->rtr_type |= MPA_RTR_TYPE_ZERO_READ; 795456a5849SKalderon, Michal 796456a5849SKalderon, Michal if (mpa_ird & MPA_V2_SEND_RTR) 797456a5849SKalderon, Michal ep->rtr_type |= MPA_RTR_TYPE_ZERO_SEND; 798456a5849SKalderon, Michal 799456a5849SKalderon, Michal ep->rtr_type &= iwarp_info->rtr_type; 800456a5849SKalderon, Michal 801456a5849SKalderon, Michal /* if we're left with no match send our capabilities */ 802456a5849SKalderon, Michal if (ep->rtr_type == MPA_RTR_TYPE_NONE) 803456a5849SKalderon, Michal ep->rtr_type = iwarp_info->rtr_type; 804456a5849SKalderon, Michal } 805456a5849SKalderon, Michal 806456a5849SKalderon, Michal ep->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; 807456a5849SKalderon, Michal } else { 808456a5849SKalderon, Michal ep->cm_info.ord = QED_IWARP_ORD_DEFAULT; 809456a5849SKalderon, Michal ep->cm_info.ird = QED_IWARP_IRD_DEFAULT; 810456a5849SKalderon, Michal ep->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC; 811456a5849SKalderon, Michal } 812456a5849SKalderon, Michal 813456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 814456a5849SKalderon, Michal "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x rtr:0x%x ulp_data_len = %x mpa_hdr_size = %x\n", 815456a5849SKalderon, Michal mpa_rev, ep->cm_info.ord, ep->cm_info.ird, ep->rtr_type, 816456a5849SKalderon, Michal async_data->mpa_request.ulp_data_len, mpa_hdr_size); 817456a5849SKalderon, Michal 818456a5849SKalderon, Michal /* Strip mpa v2 hdr from private data before sending to upper layer */ 819456a5849SKalderon, Michal ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_hdr_size; 820456a5849SKalderon, Michal 821456a5849SKalderon, Michal ep->cm_info.private_data_len = async_data->mpa_request.ulp_data_len - 822456a5849SKalderon, Michal mpa_hdr_size; 823456a5849SKalderon, Michal 824456a5849SKalderon, Michal params.event = QED_IWARP_EVENT_MPA_REQUEST; 825456a5849SKalderon, Michal params.cm_info = &ep->cm_info; 826456a5849SKalderon, Michal params.ep_context = ep; 827456a5849SKalderon, Michal params.status = 0; 828456a5849SKalderon, Michal 829456a5849SKalderon, Michal ep->state = QED_IWARP_EP_MPA_REQ_RCVD; 830456a5849SKalderon, Michal ep->event_cb(ep->cb_context, ¶ms); 831456a5849SKalderon, Michal } 832456a5849SKalderon, Michal 833456a5849SKalderon, Michal static int 834456a5849SKalderon, Michal qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 835456a5849SKalderon, Michal { 836456a5849SKalderon, Michal struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod; 837da090917STomer Tayar struct qed_iwarp_info *iwarp_info; 838456a5849SKalderon, Michal struct qed_sp_init_data init_data; 839456a5849SKalderon, Michal dma_addr_t async_output_phys; 840456a5849SKalderon, Michal struct qed_spq_entry *p_ent; 841456a5849SKalderon, Michal dma_addr_t out_pdata_phys; 842456a5849SKalderon, Michal dma_addr_t in_pdata_phys; 843456a5849SKalderon, Michal struct qed_rdma_qp *qp; 844456a5849SKalderon, Michal bool reject; 845456a5849SKalderon, Michal int rc; 846456a5849SKalderon, Michal 847456a5849SKalderon, Michal if (!ep) 848456a5849SKalderon, Michal return -EINVAL; 849456a5849SKalderon, Michal 850456a5849SKalderon, Michal qp = ep->qp; 851456a5849SKalderon, Michal reject = !qp; 852456a5849SKalderon, Michal 853456a5849SKalderon, Michal memset(&init_data, 0, sizeof(init_data)); 854456a5849SKalderon, Michal init_data.cid = reject ? ep->tcp_cid : qp->icid; 855456a5849SKalderon, Michal init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 856456a5849SKalderon, Michal 8574b0fdd7cSKalderon, Michal if (ep->connect_mode == TCP_CONNECT_ACTIVE) 8584b0fdd7cSKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_CB; 8594b0fdd7cSKalderon, Michal else 860456a5849SKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 861456a5849SKalderon, Michal 862456a5849SKalderon, Michal rc = qed_sp_init_request(p_hwfn, &p_ent, 863456a5849SKalderon, Michal IWARP_RAMROD_CMD_ID_MPA_OFFLOAD, 864456a5849SKalderon, Michal PROTOCOLID_IWARP, &init_data); 865456a5849SKalderon, Michal if (rc) 866456a5849SKalderon, Michal return rc; 867456a5849SKalderon, Michal 868456a5849SKalderon, Michal p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload; 869456a5849SKalderon, Michal out_pdata_phys = ep->ep_buffer_phys + 870456a5849SKalderon, Michal offsetof(struct qed_iwarp_ep_memory, out_pdata); 871456a5849SKalderon, Michal DMA_REGPAIR_LE(p_mpa_ramrod->common.outgoing_ulp_buffer.addr, 872456a5849SKalderon, Michal out_pdata_phys); 873456a5849SKalderon, Michal p_mpa_ramrod->common.outgoing_ulp_buffer.len = 874456a5849SKalderon, Michal ep->cm_info.private_data_len; 875456a5849SKalderon, Michal p_mpa_ramrod->common.crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed; 876456a5849SKalderon, Michal 877456a5849SKalderon, Michal p_mpa_ramrod->common.out_rq.ord = ep->cm_info.ord; 878456a5849SKalderon, Michal p_mpa_ramrod->common.out_rq.ird = ep->cm_info.ird; 879456a5849SKalderon, Michal 880456a5849SKalderon, Michal p_mpa_ramrod->tcp_cid = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid; 881456a5849SKalderon, Michal 882456a5849SKalderon, Michal in_pdata_phys = ep->ep_buffer_phys + 883456a5849SKalderon, Michal offsetof(struct qed_iwarp_ep_memory, in_pdata); 884456a5849SKalderon, Michal p_mpa_ramrod->tcp_connect_side = ep->connect_mode; 885456a5849SKalderon, Michal DMA_REGPAIR_LE(p_mpa_ramrod->incoming_ulp_buffer.addr, 886456a5849SKalderon, Michal in_pdata_phys); 887456a5849SKalderon, Michal p_mpa_ramrod->incoming_ulp_buffer.len = 888456a5849SKalderon, Michal cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata)); 889456a5849SKalderon, Michal async_output_phys = ep->ep_buffer_phys + 890456a5849SKalderon, Michal offsetof(struct qed_iwarp_ep_memory, async_output); 891456a5849SKalderon, Michal DMA_REGPAIR_LE(p_mpa_ramrod->async_eqe_output_buf, 892456a5849SKalderon, Michal async_output_phys); 893456a5849SKalderon, Michal p_mpa_ramrod->handle_for_async.hi = cpu_to_le32(PTR_HI(ep)); 894456a5849SKalderon, Michal p_mpa_ramrod->handle_for_async.lo = cpu_to_le32(PTR_LO(ep)); 895456a5849SKalderon, Michal 896456a5849SKalderon, Michal if (!reject) { 897456a5849SKalderon, Michal DMA_REGPAIR_LE(p_mpa_ramrod->shared_queue_addr, 898456a5849SKalderon, Michal qp->shared_queue_phys_addr); 899456a5849SKalderon, Michal p_mpa_ramrod->stats_counter_id = 900456a5849SKalderon, Michal RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + qp->stats_queue; 901456a5849SKalderon, Michal } else { 902456a5849SKalderon, Michal p_mpa_ramrod->common.reject = 1; 903456a5849SKalderon, Michal } 904456a5849SKalderon, Michal 905da090917STomer Tayar iwarp_info = &p_hwfn->p_rdma_info->iwarp; 906da090917STomer Tayar p_mpa_ramrod->rcv_wnd = iwarp_info->rcv_wnd_size; 907456a5849SKalderon, Michal p_mpa_ramrod->mode = ep->mpa_rev; 908456a5849SKalderon, Michal SET_FIELD(p_mpa_ramrod->rtr_pref, 909456a5849SKalderon, Michal IWARP_MPA_OFFLOAD_RAMROD_DATA_RTR_SUPPORTED, ep->rtr_type); 910456a5849SKalderon, Michal 911456a5849SKalderon, Michal ep->state = QED_IWARP_EP_MPA_OFFLOADED; 912456a5849SKalderon, Michal rc = qed_spq_post(p_hwfn, p_ent, NULL); 913456a5849SKalderon, Michal if (!reject) 914456a5849SKalderon, Michal ep->cid = qp->icid; /* Now they're migrated. */ 915456a5849SKalderon, Michal 916456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, 917456a5849SKalderon, Michal QED_MSG_RDMA, 918456a5849SKalderon, Michal "QP(0x%x) EP(0x%x) MPA Offload rc = %d IRD=0x%x ORD=0x%x rtr_type=%d mpa_rev=%d reject=%d\n", 919456a5849SKalderon, Michal reject ? 0xffff : qp->icid, 920456a5849SKalderon, Michal ep->tcp_cid, 921456a5849SKalderon, Michal rc, 922456a5849SKalderon, Michal ep->cm_info.ird, 923456a5849SKalderon, Michal ep->cm_info.ord, ep->rtr_type, ep->mpa_rev, reject); 924456a5849SKalderon, Michal return rc; 925456a5849SKalderon, Michal } 926456a5849SKalderon, Michal 927456a5849SKalderon, Michal static void 928456a5849SKalderon, Michal qed_iwarp_return_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 929456a5849SKalderon, Michal { 930456a5849SKalderon, Michal ep->state = QED_IWARP_EP_INIT; 931456a5849SKalderon, Michal if (ep->qp) 932456a5849SKalderon, Michal ep->qp->ep = NULL; 933456a5849SKalderon, Michal ep->qp = NULL; 934456a5849SKalderon, Michal memset(&ep->cm_info, 0, sizeof(ep->cm_info)); 935456a5849SKalderon, Michal 936456a5849SKalderon, Michal if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) { 937456a5849SKalderon, Michal /* We don't care about the return code, it's ok if tcp_cid 938456a5849SKalderon, Michal * remains invalid...in this case we'll defer allocation 939456a5849SKalderon, Michal */ 940456a5849SKalderon, Michal qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); 941456a5849SKalderon, Michal } 942456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 943456a5849SKalderon, Michal 944631e871eSzhong jiang list_move_tail(&ep->list_entry, 945456a5849SKalderon, Michal &p_hwfn->p_rdma_info->iwarp.ep_free_list); 946456a5849SKalderon, Michal 947456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 948456a5849SKalderon, Michal } 949456a5849SKalderon, Michal 950bf774d14SYueHaibing static void 9514b0fdd7cSKalderon, Michal qed_iwarp_parse_private_data(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 9524b0fdd7cSKalderon, Michal { 9534b0fdd7cSKalderon, Michal struct mpa_v2_hdr *mpa_v2_params; 9544b0fdd7cSKalderon, Michal union async_output *async_data; 9554b0fdd7cSKalderon, Michal u16 mpa_ird, mpa_ord; 9564b0fdd7cSKalderon, Michal u8 mpa_data_size = 0; 9574b0fdd7cSKalderon, Michal 9584b0fdd7cSKalderon, Michal if (MPA_REV2(p_hwfn->p_rdma_info->iwarp.mpa_rev)) { 9594b0fdd7cSKalderon, Michal mpa_v2_params = 9604b0fdd7cSKalderon, Michal (struct mpa_v2_hdr *)(ep->ep_buffer_virt->in_pdata); 9614b0fdd7cSKalderon, Michal mpa_data_size = sizeof(*mpa_v2_params); 9624b0fdd7cSKalderon, Michal mpa_ird = ntohs(mpa_v2_params->ird); 9634b0fdd7cSKalderon, Michal mpa_ord = ntohs(mpa_v2_params->ord); 9644b0fdd7cSKalderon, Michal 9654b0fdd7cSKalderon, Michal ep->cm_info.ird = (u8)(mpa_ord & MPA_V2_IRD_ORD_MASK); 9664b0fdd7cSKalderon, Michal ep->cm_info.ord = (u8)(mpa_ird & MPA_V2_IRD_ORD_MASK); 9674b0fdd7cSKalderon, Michal } 9684b0fdd7cSKalderon, Michal async_data = &ep->ep_buffer_virt->async_output; 9694b0fdd7cSKalderon, Michal 9704b0fdd7cSKalderon, Michal ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_data_size; 9714b0fdd7cSKalderon, Michal ep->cm_info.private_data_len = async_data->mpa_response.ulp_data_len - 9724b0fdd7cSKalderon, Michal mpa_data_size; 9734b0fdd7cSKalderon, Michal } 9744b0fdd7cSKalderon, Michal 975bf774d14SYueHaibing static void 9764b0fdd7cSKalderon, Michal qed_iwarp_mpa_reply_arrived(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 9774b0fdd7cSKalderon, Michal { 9784b0fdd7cSKalderon, Michal struct qed_iwarp_cm_event_params params; 9794b0fdd7cSKalderon, Michal 9804b0fdd7cSKalderon, Michal if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 9814b0fdd7cSKalderon, Michal DP_NOTICE(p_hwfn, 9824b0fdd7cSKalderon, Michal "MPA reply event not expected on passive side!\n"); 9834b0fdd7cSKalderon, Michal return; 9844b0fdd7cSKalderon, Michal } 9854b0fdd7cSKalderon, Michal 9864b0fdd7cSKalderon, Michal params.event = QED_IWARP_EVENT_ACTIVE_MPA_REPLY; 9874b0fdd7cSKalderon, Michal 9884b0fdd7cSKalderon, Michal qed_iwarp_parse_private_data(p_hwfn, ep); 9894b0fdd7cSKalderon, Michal 9904b0fdd7cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 9914b0fdd7cSKalderon, Michal "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n", 9924b0fdd7cSKalderon, Michal ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird); 9934b0fdd7cSKalderon, Michal 9944b0fdd7cSKalderon, Michal params.cm_info = &ep->cm_info; 9954b0fdd7cSKalderon, Michal params.ep_context = ep; 9964b0fdd7cSKalderon, Michal params.status = 0; 9974b0fdd7cSKalderon, Michal 9984b0fdd7cSKalderon, Michal ep->mpa_reply_processed = true; 9994b0fdd7cSKalderon, Michal 10004b0fdd7cSKalderon, Michal ep->event_cb(ep->cb_context, ¶ms); 10014b0fdd7cSKalderon, Michal } 10024b0fdd7cSKalderon, Michal 1003456a5849SKalderon, Michal #define QED_IWARP_CONNECT_MODE_STRING(ep) \ 1004456a5849SKalderon, Michal ((ep)->connect_mode == TCP_CONNECT_PASSIVE) ? "Passive" : "Active" 1005456a5849SKalderon, Michal 1006456a5849SKalderon, Michal /* Called as a result of the event: 1007456a5849SKalderon, Michal * IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE 1008456a5849SKalderon, Michal */ 1009456a5849SKalderon, Michal static void 1010456a5849SKalderon, Michal qed_iwarp_mpa_complete(struct qed_hwfn *p_hwfn, 1011456a5849SKalderon, Michal struct qed_iwarp_ep *ep, u8 fw_return_code) 1012456a5849SKalderon, Michal { 1013456a5849SKalderon, Michal struct qed_iwarp_cm_event_params params; 1014456a5849SKalderon, Michal 10154b0fdd7cSKalderon, Michal if (ep->connect_mode == TCP_CONNECT_ACTIVE) 10164b0fdd7cSKalderon, Michal params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE; 10174b0fdd7cSKalderon, Michal else 1018456a5849SKalderon, Michal params.event = QED_IWARP_EVENT_PASSIVE_COMPLETE; 1019456a5849SKalderon, Michal 10204b0fdd7cSKalderon, Michal if (ep->connect_mode == TCP_CONNECT_ACTIVE && !ep->mpa_reply_processed) 10214b0fdd7cSKalderon, Michal qed_iwarp_parse_private_data(p_hwfn, ep); 10224b0fdd7cSKalderon, Michal 1023456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 1024456a5849SKalderon, Michal "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n", 1025456a5849SKalderon, Michal ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird); 1026456a5849SKalderon, Michal 1027456a5849SKalderon, Michal params.cm_info = &ep->cm_info; 1028456a5849SKalderon, Michal 1029456a5849SKalderon, Michal params.ep_context = ep; 1030456a5849SKalderon, Michal 1031456a5849SKalderon, Michal switch (fw_return_code) { 1032456a5849SKalderon, Michal case RDMA_RETURN_OK: 1033456a5849SKalderon, Michal ep->qp->max_rd_atomic_req = ep->cm_info.ord; 1034456a5849SKalderon, Michal ep->qp->max_rd_atomic_resp = ep->cm_info.ird; 1035456a5849SKalderon, Michal qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_RTS, 1); 1036456a5849SKalderon, Michal ep->state = QED_IWARP_EP_ESTABLISHED; 1037456a5849SKalderon, Michal params.status = 0; 1038456a5849SKalderon, Michal break; 10399816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_TIMEOUT: 10409816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA timeout\n", 10419816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10429816b614SKalderon, Michal params.status = -EBUSY; 10439816b614SKalderon, Michal break; 10449816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_ERROR_REJECT: 10459816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA Reject\n", 10469816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10479816b614SKalderon, Michal params.status = -ECONNREFUSED; 10489816b614SKalderon, Michal break; 10499816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_RST: 10509816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA reset(tcp cid: 0x%x)\n", 10519816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid, 10529816b614SKalderon, Michal ep->tcp_cid); 10539816b614SKalderon, Michal params.status = -ECONNRESET; 10549816b614SKalderon, Michal break; 10559816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_FIN: 10569816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA received FIN\n", 10579816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10589816b614SKalderon, Michal params.status = -ECONNREFUSED; 10599816b614SKalderon, Michal break; 10609816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_INSUF_IRD: 10619816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA insufficient ird\n", 10629816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10639816b614SKalderon, Michal params.status = -ECONNREFUSED; 10649816b614SKalderon, Michal break; 10659816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_RTR_MISMATCH: 10669816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA RTR MISMATCH\n", 10679816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10689816b614SKalderon, Michal params.status = -ECONNREFUSED; 10699816b614SKalderon, Michal break; 10709816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_INVALID_PACKET: 10719816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n", 10729816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10739816b614SKalderon, Michal params.status = -ECONNREFUSED; 10749816b614SKalderon, Michal break; 10759816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_LOCAL_ERROR: 10769816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA Local Error\n", 10779816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10789816b614SKalderon, Michal params.status = -ECONNREFUSED; 10799816b614SKalderon, Michal break; 10809816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_TERMINATE: 10819816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA TERMINATE\n", 10829816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 10839816b614SKalderon, Michal params.status = -ECONNREFUSED; 10849816b614SKalderon, Michal break; 1085456a5849SKalderon, Michal default: 1086456a5849SKalderon, Michal params.status = -ECONNRESET; 1087456a5849SKalderon, Michal break; 1088456a5849SKalderon, Michal } 1089456a5849SKalderon, Michal 10906117561eSMichal Kalderon if (fw_return_code != RDMA_RETURN_OK) 10916117561eSMichal Kalderon /* paired with READ_ONCE in destroy_qp */ 10926117561eSMichal Kalderon smp_store_release(&ep->state, QED_IWARP_EP_CLOSED); 10936117561eSMichal Kalderon 1094456a5849SKalderon, Michal ep->event_cb(ep->cb_context, ¶ms); 10959816b614SKalderon, Michal 10969816b614SKalderon, Michal /* on passive side, if there is no associated QP (REJECT) we need to 10979816b614SKalderon, Michal * return the ep to the pool, (in the regular case we add an element 10989816b614SKalderon, Michal * in accept instead of this one. 10999816b614SKalderon, Michal * In both cases we need to remove it from the ep_list. 11009816b614SKalderon, Michal */ 11019816b614SKalderon, Michal if (fw_return_code != RDMA_RETURN_OK) { 11029816b614SKalderon, Michal ep->tcp_cid = QED_IWARP_INVALID_TCP_CID; 11039816b614SKalderon, Michal if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && 11049816b614SKalderon, Michal (!ep->qp)) { /* Rejected */ 11059816b614SKalderon, Michal qed_iwarp_return_ep(p_hwfn, ep); 11069816b614SKalderon, Michal } else { 11079816b614SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 11089816b614SKalderon, Michal list_del(&ep->list_entry); 11099816b614SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 11109816b614SKalderon, Michal } 11119816b614SKalderon, Michal } 1112456a5849SKalderon, Michal } 1113456a5849SKalderon, Michal 1114456a5849SKalderon, Michal static void 1115456a5849SKalderon, Michal qed_iwarp_mpa_v2_set_private(struct qed_hwfn *p_hwfn, 1116456a5849SKalderon, Michal struct qed_iwarp_ep *ep, u8 *mpa_data_size) 1117456a5849SKalderon, Michal { 1118456a5849SKalderon, Michal struct mpa_v2_hdr *mpa_v2_params; 1119456a5849SKalderon, Michal u16 mpa_ird, mpa_ord; 1120456a5849SKalderon, Michal 1121456a5849SKalderon, Michal *mpa_data_size = 0; 1122456a5849SKalderon, Michal if (MPA_REV2(ep->mpa_rev)) { 1123456a5849SKalderon, Michal mpa_v2_params = 1124456a5849SKalderon, Michal (struct mpa_v2_hdr *)ep->ep_buffer_virt->out_pdata; 1125456a5849SKalderon, Michal *mpa_data_size = sizeof(*mpa_v2_params); 1126456a5849SKalderon, Michal 1127456a5849SKalderon, Michal mpa_ird = (u16)ep->cm_info.ird; 1128456a5849SKalderon, Michal mpa_ord = (u16)ep->cm_info.ord; 1129456a5849SKalderon, Michal 1130456a5849SKalderon, Michal if (ep->rtr_type != MPA_RTR_TYPE_NONE) { 1131456a5849SKalderon, Michal mpa_ird |= MPA_V2_PEER2PEER_MODEL; 1132456a5849SKalderon, Michal 1133456a5849SKalderon, Michal if (ep->rtr_type & MPA_RTR_TYPE_ZERO_SEND) 1134456a5849SKalderon, Michal mpa_ird |= MPA_V2_SEND_RTR; 1135456a5849SKalderon, Michal 1136456a5849SKalderon, Michal if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE) 1137456a5849SKalderon, Michal mpa_ord |= MPA_V2_WRITE_RTR; 1138456a5849SKalderon, Michal 1139456a5849SKalderon, Michal if (ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) 1140456a5849SKalderon, Michal mpa_ord |= MPA_V2_READ_RTR; 1141456a5849SKalderon, Michal } 1142456a5849SKalderon, Michal 1143456a5849SKalderon, Michal mpa_v2_params->ird = htons(mpa_ird); 1144456a5849SKalderon, Michal mpa_v2_params->ord = htons(mpa_ord); 1145456a5849SKalderon, Michal 1146456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, 1147456a5849SKalderon, Michal QED_MSG_RDMA, 1148456a5849SKalderon, Michal "MPA_NEGOTIATE Header: [%x ord:%x ird] %x ord:%x ird:%x peer2peer:%x rtr_send:%x rtr_write:%x rtr_read:%x\n", 1149456a5849SKalderon, Michal mpa_v2_params->ird, 1150456a5849SKalderon, Michal mpa_v2_params->ord, 1151456a5849SKalderon, Michal *((u32 *)mpa_v2_params), 1152456a5849SKalderon, Michal mpa_ord & MPA_V2_IRD_ORD_MASK, 1153456a5849SKalderon, Michal mpa_ird & MPA_V2_IRD_ORD_MASK, 1154456a5849SKalderon, Michal !!(mpa_ird & MPA_V2_PEER2PEER_MODEL), 1155456a5849SKalderon, Michal !!(mpa_ird & MPA_V2_SEND_RTR), 1156456a5849SKalderon, Michal !!(mpa_ord & MPA_V2_WRITE_RTR), 1157456a5849SKalderon, Michal !!(mpa_ord & MPA_V2_READ_RTR)); 1158456a5849SKalderon, Michal } 1159456a5849SKalderon, Michal } 1160456a5849SKalderon, Michal 11614b0fdd7cSKalderon, Michal int qed_iwarp_connect(void *rdma_cxt, 11624b0fdd7cSKalderon, Michal struct qed_iwarp_connect_in *iparams, 11634b0fdd7cSKalderon, Michal struct qed_iwarp_connect_out *oparams) 11644b0fdd7cSKalderon, Michal { 11654b0fdd7cSKalderon, Michal struct qed_hwfn *p_hwfn = rdma_cxt; 11664b0fdd7cSKalderon, Michal struct qed_iwarp_info *iwarp_info; 11674b0fdd7cSKalderon, Michal struct qed_iwarp_ep *ep; 11684b0fdd7cSKalderon, Michal u8 mpa_data_size = 0; 11694b0fdd7cSKalderon, Michal u32 cid; 11704b0fdd7cSKalderon, Michal int rc; 11714b0fdd7cSKalderon, Michal 11724b0fdd7cSKalderon, Michal if ((iparams->cm_info.ord > QED_IWARP_ORD_DEFAULT) || 11734b0fdd7cSKalderon, Michal (iparams->cm_info.ird > QED_IWARP_IRD_DEFAULT)) { 11744b0fdd7cSKalderon, Michal DP_NOTICE(p_hwfn, 11754b0fdd7cSKalderon, Michal "QP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", 11764b0fdd7cSKalderon, Michal iparams->qp->icid, iparams->cm_info.ord, 11774b0fdd7cSKalderon, Michal iparams->cm_info.ird); 11784b0fdd7cSKalderon, Michal 11794b0fdd7cSKalderon, Michal return -EINVAL; 11804b0fdd7cSKalderon, Michal } 11814b0fdd7cSKalderon, Michal 11824b0fdd7cSKalderon, Michal iwarp_info = &p_hwfn->p_rdma_info->iwarp; 11834b0fdd7cSKalderon, Michal 11844b0fdd7cSKalderon, Michal /* Allocate ep object */ 11854b0fdd7cSKalderon, Michal rc = qed_iwarp_alloc_cid(p_hwfn, &cid); 11864b0fdd7cSKalderon, Michal if (rc) 11874b0fdd7cSKalderon, Michal return rc; 11884b0fdd7cSKalderon, Michal 11894b0fdd7cSKalderon, Michal rc = qed_iwarp_create_ep(p_hwfn, &ep); 11904b0fdd7cSKalderon, Michal if (rc) 11914b0fdd7cSKalderon, Michal goto err; 11924b0fdd7cSKalderon, Michal 11934b0fdd7cSKalderon, Michal ep->tcp_cid = cid; 11944b0fdd7cSKalderon, Michal 11954b0fdd7cSKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 11964b0fdd7cSKalderon, Michal list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); 11974b0fdd7cSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 11984b0fdd7cSKalderon, Michal 11994b0fdd7cSKalderon, Michal ep->qp = iparams->qp; 12004b0fdd7cSKalderon, Michal ep->qp->ep = ep; 12014b0fdd7cSKalderon, Michal ether_addr_copy(ep->remote_mac_addr, iparams->remote_mac_addr); 12024b0fdd7cSKalderon, Michal ether_addr_copy(ep->local_mac_addr, iparams->local_mac_addr); 12034b0fdd7cSKalderon, Michal memcpy(&ep->cm_info, &iparams->cm_info, sizeof(ep->cm_info)); 12044b0fdd7cSKalderon, Michal 12054b0fdd7cSKalderon, Michal ep->cm_info.ord = iparams->cm_info.ord; 12064b0fdd7cSKalderon, Michal ep->cm_info.ird = iparams->cm_info.ird; 12074b0fdd7cSKalderon, Michal 12084b0fdd7cSKalderon, Michal ep->rtr_type = iwarp_info->rtr_type; 12094b0fdd7cSKalderon, Michal if (!iwarp_info->peer2peer) 12104b0fdd7cSKalderon, Michal ep->rtr_type = MPA_RTR_TYPE_NONE; 12114b0fdd7cSKalderon, Michal 12124b0fdd7cSKalderon, Michal if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && (ep->cm_info.ord == 0)) 12134b0fdd7cSKalderon, Michal ep->cm_info.ord = 1; 12144b0fdd7cSKalderon, Michal 12154b0fdd7cSKalderon, Michal ep->mpa_rev = iwarp_info->mpa_rev; 12164b0fdd7cSKalderon, Michal 12174b0fdd7cSKalderon, Michal qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); 12184b0fdd7cSKalderon, Michal 12194b0fdd7cSKalderon, Michal ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; 12204b0fdd7cSKalderon, Michal ep->cm_info.private_data_len = iparams->cm_info.private_data_len + 12214b0fdd7cSKalderon, Michal mpa_data_size; 12224b0fdd7cSKalderon, Michal 12234b0fdd7cSKalderon, Michal memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, 12244b0fdd7cSKalderon, Michal iparams->cm_info.private_data, 12254b0fdd7cSKalderon, Michal iparams->cm_info.private_data_len); 12264b0fdd7cSKalderon, Michal 1227d52c89f1SMichal Kalderon ep->mss = iparams->mss; 12284b0fdd7cSKalderon, Michal ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss); 12294b0fdd7cSKalderon, Michal 12304b0fdd7cSKalderon, Michal ep->event_cb = iparams->event_cb; 12314b0fdd7cSKalderon, Michal ep->cb_context = iparams->cb_context; 12324b0fdd7cSKalderon, Michal ep->connect_mode = TCP_CONNECT_ACTIVE; 12334b0fdd7cSKalderon, Michal 12344b0fdd7cSKalderon, Michal oparams->ep_context = ep; 12354b0fdd7cSKalderon, Michal 12364b0fdd7cSKalderon, Michal rc = qed_iwarp_tcp_offload(p_hwfn, ep); 12374b0fdd7cSKalderon, Michal 12384b0fdd7cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x) rc = %d\n", 12394b0fdd7cSKalderon, Michal iparams->qp->icid, ep->tcp_cid, rc); 12404b0fdd7cSKalderon, Michal 12414b0fdd7cSKalderon, Michal if (rc) { 12424b0fdd7cSKalderon, Michal qed_iwarp_destroy_ep(p_hwfn, ep, true); 12434b0fdd7cSKalderon, Michal goto err; 12444b0fdd7cSKalderon, Michal } 12454b0fdd7cSKalderon, Michal 12464b0fdd7cSKalderon, Michal return rc; 12474b0fdd7cSKalderon, Michal err: 12484b0fdd7cSKalderon, Michal qed_iwarp_cid_cleaned(p_hwfn, cid); 12494b0fdd7cSKalderon, Michal 12504b0fdd7cSKalderon, Michal return rc; 12514b0fdd7cSKalderon, Michal } 12524b0fdd7cSKalderon, Michal 1253456a5849SKalderon, Michal static struct qed_iwarp_ep *qed_iwarp_get_free_ep(struct qed_hwfn *p_hwfn) 1254456a5849SKalderon, Michal { 1255456a5849SKalderon, Michal struct qed_iwarp_ep *ep = NULL; 1256456a5849SKalderon, Michal int rc; 1257456a5849SKalderon, Michal 1258456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1259456a5849SKalderon, Michal 1260456a5849SKalderon, Michal if (list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { 1261456a5849SKalderon, Michal DP_ERR(p_hwfn, "Ep list is empty\n"); 1262456a5849SKalderon, Michal goto out; 1263456a5849SKalderon, Michal } 1264456a5849SKalderon, Michal 1265456a5849SKalderon, Michal ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list, 1266456a5849SKalderon, Michal struct qed_iwarp_ep, list_entry); 1267456a5849SKalderon, Michal 1268456a5849SKalderon, Michal /* in some cases we could have failed allocating a tcp cid when added 1269456a5849SKalderon, Michal * from accept / failure... retry now..this is not the common case. 1270456a5849SKalderon, Michal */ 1271456a5849SKalderon, Michal if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) { 1272456a5849SKalderon, Michal rc = qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); 1273456a5849SKalderon, Michal 1274456a5849SKalderon, Michal /* if we fail we could look for another entry with a valid 1275456a5849SKalderon, Michal * tcp_cid, but since we don't expect to reach this anyway 1276456a5849SKalderon, Michal * it's not worth the handling 1277456a5849SKalderon, Michal */ 1278456a5849SKalderon, Michal if (rc) { 1279456a5849SKalderon, Michal ep->tcp_cid = QED_IWARP_INVALID_TCP_CID; 1280456a5849SKalderon, Michal ep = NULL; 1281456a5849SKalderon, Michal goto out; 1282456a5849SKalderon, Michal } 1283456a5849SKalderon, Michal } 1284456a5849SKalderon, Michal 1285456a5849SKalderon, Michal list_del(&ep->list_entry); 1286456a5849SKalderon, Michal 1287456a5849SKalderon, Michal out: 1288456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1289456a5849SKalderon, Michal return ep; 1290456a5849SKalderon, Michal } 1291456a5849SKalderon, Michal 129267b40dccSKalderon, Michal #define QED_IWARP_MAX_CID_CLEAN_TIME 100 129367b40dccSKalderon, Michal #define QED_IWARP_MAX_NO_PROGRESS_CNT 5 129467b40dccSKalderon, Michal 129567b40dccSKalderon, Michal /* This function waits for all the bits of a bmap to be cleared, as long as 129667b40dccSKalderon, Michal * there is progress ( i.e. the number of bits left to be cleared decreases ) 129767b40dccSKalderon, Michal * the function continues. 129867b40dccSKalderon, Michal */ 129967b40dccSKalderon, Michal static int 130067b40dccSKalderon, Michal qed_iwarp_wait_cid_map_cleared(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap) 130167b40dccSKalderon, Michal { 130267b40dccSKalderon, Michal int prev_weight = 0; 130367b40dccSKalderon, Michal int wait_count = 0; 130467b40dccSKalderon, Michal int weight = 0; 130567b40dccSKalderon, Michal 130667b40dccSKalderon, Michal weight = bitmap_weight(bmap->bitmap, bmap->max_count); 130767b40dccSKalderon, Michal prev_weight = weight; 130867b40dccSKalderon, Michal 130967b40dccSKalderon, Michal while (weight) { 131067b40dccSKalderon, Michal msleep(QED_IWARP_MAX_CID_CLEAN_TIME); 131167b40dccSKalderon, Michal 131267b40dccSKalderon, Michal weight = bitmap_weight(bmap->bitmap, bmap->max_count); 131367b40dccSKalderon, Michal 131467b40dccSKalderon, Michal if (prev_weight == weight) { 131567b40dccSKalderon, Michal wait_count++; 131667b40dccSKalderon, Michal } else { 131767b40dccSKalderon, Michal prev_weight = weight; 131867b40dccSKalderon, Michal wait_count = 0; 131967b40dccSKalderon, Michal } 132067b40dccSKalderon, Michal 132167b40dccSKalderon, Michal if (wait_count > QED_IWARP_MAX_NO_PROGRESS_CNT) { 132267b40dccSKalderon, Michal DP_NOTICE(p_hwfn, 132367b40dccSKalderon, Michal "%s bitmap wait timed out (%d cids pending)\n", 132467b40dccSKalderon, Michal bmap->name, weight); 132567b40dccSKalderon, Michal return -EBUSY; 132667b40dccSKalderon, Michal } 132767b40dccSKalderon, Michal } 132867b40dccSKalderon, Michal return 0; 132967b40dccSKalderon, Michal } 133067b40dccSKalderon, Michal 133167b40dccSKalderon, Michal static int qed_iwarp_wait_for_all_cids(struct qed_hwfn *p_hwfn) 133267b40dccSKalderon, Michal { 1333456a5849SKalderon, Michal int rc; 1334456a5849SKalderon, Michal int i; 1335456a5849SKalderon, Michal 1336456a5849SKalderon, Michal rc = qed_iwarp_wait_cid_map_cleared(p_hwfn, 1337456a5849SKalderon, Michal &p_hwfn->p_rdma_info->tcp_cid_map); 1338456a5849SKalderon, Michal if (rc) 1339456a5849SKalderon, Michal return rc; 1340456a5849SKalderon, Michal 1341456a5849SKalderon, Michal /* Now free the tcp cids from the main cid map */ 1342456a5849SKalderon, Michal for (i = 0; i < QED_IWARP_PREALLOC_CNT; i++) 1343456a5849SKalderon, Michal qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, i); 1344456a5849SKalderon, Michal 134567b40dccSKalderon, Michal /* Now wait for all cids to be completed */ 134667b40dccSKalderon, Michal return qed_iwarp_wait_cid_map_cleared(p_hwfn, 134767b40dccSKalderon, Michal &p_hwfn->p_rdma_info->cid_map); 134867b40dccSKalderon, Michal } 134967b40dccSKalderon, Michal 1350456a5849SKalderon, Michal static void qed_iwarp_free_prealloc_ep(struct qed_hwfn *p_hwfn) 1351456a5849SKalderon, Michal { 1352456a5849SKalderon, Michal struct qed_iwarp_ep *ep; 1353456a5849SKalderon, Michal 1354456a5849SKalderon, Michal while (!list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { 1355456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1356456a5849SKalderon, Michal 1357456a5849SKalderon, Michal ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list, 1358456a5849SKalderon, Michal struct qed_iwarp_ep, list_entry); 1359456a5849SKalderon, Michal 1360456a5849SKalderon, Michal if (!ep) { 1361456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1362456a5849SKalderon, Michal break; 1363456a5849SKalderon, Michal } 1364456a5849SKalderon, Michal list_del(&ep->list_entry); 1365456a5849SKalderon, Michal 1366456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1367456a5849SKalderon, Michal 1368456a5849SKalderon, Michal if (ep->tcp_cid != QED_IWARP_INVALID_TCP_CID) 1369456a5849SKalderon, Michal qed_iwarp_cid_cleaned(p_hwfn, ep->tcp_cid); 1370456a5849SKalderon, Michal 1371456a5849SKalderon, Michal qed_iwarp_destroy_ep(p_hwfn, ep, false); 1372456a5849SKalderon, Michal } 1373456a5849SKalderon, Michal } 1374456a5849SKalderon, Michal 1375456a5849SKalderon, Michal static int qed_iwarp_prealloc_ep(struct qed_hwfn *p_hwfn, bool init) 1376456a5849SKalderon, Michal { 1377456a5849SKalderon, Michal struct qed_iwarp_ep *ep; 1378456a5849SKalderon, Michal int rc = 0; 1379456a5849SKalderon, Michal int count; 1380456a5849SKalderon, Michal u32 cid; 1381456a5849SKalderon, Michal int i; 1382456a5849SKalderon, Michal 1383456a5849SKalderon, Michal count = init ? QED_IWARP_PREALLOC_CNT : 1; 1384456a5849SKalderon, Michal for (i = 0; i < count; i++) { 1385456a5849SKalderon, Michal rc = qed_iwarp_create_ep(p_hwfn, &ep); 1386456a5849SKalderon, Michal if (rc) 1387456a5849SKalderon, Michal return rc; 1388456a5849SKalderon, Michal 1389456a5849SKalderon, Michal /* During initialization we allocate from the main pool, 1390456a5849SKalderon, Michal * afterwards we allocate only from the tcp_cid. 1391456a5849SKalderon, Michal */ 1392456a5849SKalderon, Michal if (init) { 1393456a5849SKalderon, Michal rc = qed_iwarp_alloc_cid(p_hwfn, &cid); 1394456a5849SKalderon, Michal if (rc) 1395456a5849SKalderon, Michal goto err; 1396456a5849SKalderon, Michal qed_iwarp_set_tcp_cid(p_hwfn, cid); 1397456a5849SKalderon, Michal } else { 1398456a5849SKalderon, Michal /* We don't care about the return code, it's ok if 1399456a5849SKalderon, Michal * tcp_cid remains invalid...in this case we'll 1400456a5849SKalderon, Michal * defer allocation 1401456a5849SKalderon, Michal */ 1402456a5849SKalderon, Michal qed_iwarp_alloc_tcp_cid(p_hwfn, &cid); 1403456a5849SKalderon, Michal } 1404456a5849SKalderon, Michal 1405456a5849SKalderon, Michal ep->tcp_cid = cid; 1406456a5849SKalderon, Michal 1407456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1408456a5849SKalderon, Michal list_add_tail(&ep->list_entry, 1409456a5849SKalderon, Michal &p_hwfn->p_rdma_info->iwarp.ep_free_list); 1410456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1411456a5849SKalderon, Michal } 1412456a5849SKalderon, Michal 1413456a5849SKalderon, Michal return rc; 1414456a5849SKalderon, Michal 1415456a5849SKalderon, Michal err: 1416456a5849SKalderon, Michal qed_iwarp_destroy_ep(p_hwfn, ep, false); 1417456a5849SKalderon, Michal 1418456a5849SKalderon, Michal return rc; 1419456a5849SKalderon, Michal } 1420456a5849SKalderon, Michal 142167b40dccSKalderon, Michal int qed_iwarp_alloc(struct qed_hwfn *p_hwfn) 142267b40dccSKalderon, Michal { 1423456a5849SKalderon, Michal int rc; 1424456a5849SKalderon, Michal 1425456a5849SKalderon, Michal /* Allocate bitmap for tcp cid. These are used by passive side 1426456a5849SKalderon, Michal * to ensure it can allocate a tcp cid during dpc that was 1427456a5849SKalderon, Michal * pre-acquired and doesn't require dynamic allocation of ilt 1428456a5849SKalderon, Michal */ 1429456a5849SKalderon, Michal rc = qed_rdma_bmap_alloc(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1430456a5849SKalderon, Michal QED_IWARP_PREALLOC_CNT, "TCP_CID"); 1431456a5849SKalderon, Michal if (rc) { 1432456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 1433456a5849SKalderon, Michal "Failed to allocate tcp cid, rc = %d\n", rc); 1434456a5849SKalderon, Michal return rc; 1435456a5849SKalderon, Michal } 1436456a5849SKalderon, Michal 1437456a5849SKalderon, Michal INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_free_list); 143867b40dccSKalderon, Michal spin_lock_init(&p_hwfn->p_rdma_info->iwarp.iw_lock); 143967b40dccSKalderon, Michal 1440f436baf3SMichal Kalderon rc = qed_iwarp_prealloc_ep(p_hwfn, true); 1441f436baf3SMichal Kalderon if (rc) 1442f436baf3SMichal Kalderon return rc; 1443f436baf3SMichal Kalderon 1444f436baf3SMichal Kalderon return qed_ooo_alloc(p_hwfn); 144567b40dccSKalderon, Michal } 144667b40dccSKalderon, Michal 144767b40dccSKalderon, Michal void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn) 144867b40dccSKalderon, Michal { 1449fcb39f6cSMichal Kalderon struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 1450fcb39f6cSMichal Kalderon 1451f436baf3SMichal Kalderon qed_ooo_free(p_hwfn); 1452456a5849SKalderon, Michal qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1); 1453fcb39f6cSMichal Kalderon kfree(iwarp_info->mpa_bufs); 1454469981b1SMichal Kalderon kfree(iwarp_info->partial_fpdus); 14551e28eaadSMichal Kalderon kfree(iwarp_info->mpa_intermediate_buf); 1456456a5849SKalderon, Michal } 1457456a5849SKalderon, Michal 1458456a5849SKalderon, Michal int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams) 1459456a5849SKalderon, Michal { 14604b0fdd7cSKalderon, Michal struct qed_hwfn *p_hwfn = rdma_cxt; 1461456a5849SKalderon, Michal struct qed_iwarp_ep *ep; 1462456a5849SKalderon, Michal u8 mpa_data_size = 0; 1463456a5849SKalderon, Michal int rc; 1464456a5849SKalderon, Michal 14654b0fdd7cSKalderon, Michal ep = iparams->ep_context; 1466456a5849SKalderon, Michal if (!ep) { 1467456a5849SKalderon, Michal DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n"); 1468456a5849SKalderon, Michal return -EINVAL; 1469456a5849SKalderon, Michal } 1470456a5849SKalderon, Michal 1471456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", 1472456a5849SKalderon, Michal iparams->qp->icid, ep->tcp_cid); 1473456a5849SKalderon, Michal 1474456a5849SKalderon, Michal if ((iparams->ord > QED_IWARP_ORD_DEFAULT) || 1475456a5849SKalderon, Michal (iparams->ird > QED_IWARP_IRD_DEFAULT)) { 1476456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, 1477456a5849SKalderon, Michal QED_MSG_RDMA, 1478456a5849SKalderon, Michal "QP(0x%x) EP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", 1479456a5849SKalderon, Michal iparams->qp->icid, 1480456a5849SKalderon, Michal ep->tcp_cid, iparams->ord, iparams->ord); 1481456a5849SKalderon, Michal return -EINVAL; 1482456a5849SKalderon, Michal } 1483456a5849SKalderon, Michal 1484456a5849SKalderon, Michal qed_iwarp_prealloc_ep(p_hwfn, false); 1485456a5849SKalderon, Michal 1486456a5849SKalderon, Michal ep->cb_context = iparams->cb_context; 1487456a5849SKalderon, Michal ep->qp = iparams->qp; 1488456a5849SKalderon, Michal ep->qp->ep = ep; 1489456a5849SKalderon, Michal 1490456a5849SKalderon, Michal if (ep->mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { 1491456a5849SKalderon, Michal /* Negotiate ord/ird: if upperlayer requested ord larger than 1492456a5849SKalderon, Michal * ird advertised by remote, we need to decrease our ord 1493456a5849SKalderon, Michal */ 1494456a5849SKalderon, Michal if (iparams->ord > ep->cm_info.ird) 1495456a5849SKalderon, Michal iparams->ord = ep->cm_info.ird; 1496456a5849SKalderon, Michal 1497456a5849SKalderon, Michal if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && 1498456a5849SKalderon, Michal (iparams->ird == 0)) 1499456a5849SKalderon, Michal iparams->ird = 1; 1500456a5849SKalderon, Michal } 1501456a5849SKalderon, Michal 1502456a5849SKalderon, Michal /* Update cm_info ord/ird to be negotiated values */ 1503456a5849SKalderon, Michal ep->cm_info.ord = iparams->ord; 1504456a5849SKalderon, Michal ep->cm_info.ird = iparams->ird; 1505456a5849SKalderon, Michal 1506456a5849SKalderon, Michal qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); 1507456a5849SKalderon, Michal 1508456a5849SKalderon, Michal ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; 1509456a5849SKalderon, Michal ep->cm_info.private_data_len = iparams->private_data_len + 1510456a5849SKalderon, Michal mpa_data_size; 1511456a5849SKalderon, Michal 1512456a5849SKalderon, Michal memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, 1513456a5849SKalderon, Michal iparams->private_data, iparams->private_data_len); 1514456a5849SKalderon, Michal 1515456a5849SKalderon, Michal rc = qed_iwarp_mpa_offload(p_hwfn, ep); 1516456a5849SKalderon, Michal if (rc) 1517456a5849SKalderon, Michal qed_iwarp_modify_qp(p_hwfn, 1518456a5849SKalderon, Michal iparams->qp, QED_IWARP_QP_STATE_ERROR, 1); 1519456a5849SKalderon, Michal 1520456a5849SKalderon, Michal return rc; 1521456a5849SKalderon, Michal } 1522456a5849SKalderon, Michal 1523456a5849SKalderon, Michal int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams) 1524456a5849SKalderon, Michal { 1525456a5849SKalderon, Michal struct qed_hwfn *p_hwfn = rdma_cxt; 1526456a5849SKalderon, Michal struct qed_iwarp_ep *ep; 1527456a5849SKalderon, Michal u8 mpa_data_size = 0; 1528456a5849SKalderon, Michal 1529456a5849SKalderon, Michal ep = iparams->ep_context; 1530456a5849SKalderon, Michal if (!ep) { 1531456a5849SKalderon, Michal DP_ERR(p_hwfn, "Ep Context receive in reject is NULL\n"); 1532456a5849SKalderon, Michal return -EINVAL; 1533456a5849SKalderon, Michal } 1534456a5849SKalderon, Michal 1535456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x)\n", ep->tcp_cid); 1536456a5849SKalderon, Michal 1537456a5849SKalderon, Michal ep->cb_context = iparams->cb_context; 1538456a5849SKalderon, Michal ep->qp = NULL; 1539456a5849SKalderon, Michal 1540456a5849SKalderon, Michal qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); 1541456a5849SKalderon, Michal 1542456a5849SKalderon, Michal ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; 1543456a5849SKalderon, Michal ep->cm_info.private_data_len = iparams->private_data_len + 1544456a5849SKalderon, Michal mpa_data_size; 1545456a5849SKalderon, Michal 1546456a5849SKalderon, Michal memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, 1547456a5849SKalderon, Michal iparams->private_data, iparams->private_data_len); 1548456a5849SKalderon, Michal 1549456a5849SKalderon, Michal return qed_iwarp_mpa_offload(p_hwfn, ep); 155067b40dccSKalderon, Michal } 155167b40dccSKalderon, Michal 155265a91a6cSKalderon, Michal static void 155365a91a6cSKalderon, Michal qed_iwarp_print_cm_info(struct qed_hwfn *p_hwfn, 155465a91a6cSKalderon, Michal struct qed_iwarp_cm_info *cm_info) 155565a91a6cSKalderon, Michal { 155665a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "ip_version = %d\n", 155765a91a6cSKalderon, Michal cm_info->ip_version); 155865a91a6cSKalderon, Michal 155965a91a6cSKalderon, Michal if (cm_info->ip_version == QED_TCP_IPV4) 156065a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 156165a91a6cSKalderon, Michal "remote_ip %pI4h:%x, local_ip %pI4h:%x vlan=%x\n", 156265a91a6cSKalderon, Michal cm_info->remote_ip, cm_info->remote_port, 156365a91a6cSKalderon, Michal cm_info->local_ip, cm_info->local_port, 156465a91a6cSKalderon, Michal cm_info->vlan); 156565a91a6cSKalderon, Michal else 156665a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 156791d1ae47SKalderon, Michal "remote_ip %pI6:%x, local_ip %pI6:%x vlan=%x\n", 156865a91a6cSKalderon, Michal cm_info->remote_ip, cm_info->remote_port, 156965a91a6cSKalderon, Michal cm_info->local_ip, cm_info->local_port, 157065a91a6cSKalderon, Michal cm_info->vlan); 157165a91a6cSKalderon, Michal 157265a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 157365a91a6cSKalderon, Michal "private_data_len = %x ord = %d, ird = %d\n", 157465a91a6cSKalderon, Michal cm_info->private_data_len, cm_info->ord, cm_info->ird); 157565a91a6cSKalderon, Michal } 157665a91a6cSKalderon, Michal 1577b5c29ca7SKalderon, Michal static int 1578b5c29ca7SKalderon, Michal qed_iwarp_ll2_post_rx(struct qed_hwfn *p_hwfn, 1579b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff *buf, u8 handle) 1580b5c29ca7SKalderon, Michal { 1581b5c29ca7SKalderon, Michal int rc; 1582b5c29ca7SKalderon, Michal 1583b5c29ca7SKalderon, Michal rc = qed_ll2_post_rx_buffer(p_hwfn, handle, buf->data_phys_addr, 1584b5c29ca7SKalderon, Michal (u16)buf->buff_size, buf, 1); 1585b5c29ca7SKalderon, Michal if (rc) { 1586b5c29ca7SKalderon, Michal DP_NOTICE(p_hwfn, 1587b5c29ca7SKalderon, Michal "Failed to repost rx buffer to ll2 rc = %d, handle=%d\n", 1588b5c29ca7SKalderon, Michal rc, handle); 1589b5c29ca7SKalderon, Michal dma_free_coherent(&p_hwfn->cdev->pdev->dev, buf->buff_size, 1590b5c29ca7SKalderon, Michal buf->data, buf->data_phys_addr); 1591b5c29ca7SKalderon, Michal kfree(buf); 1592b5c29ca7SKalderon, Michal } 1593b5c29ca7SKalderon, Michal 1594b5c29ca7SKalderon, Michal return rc; 1595b5c29ca7SKalderon, Michal } 1596b5c29ca7SKalderon, Michal 1597456a5849SKalderon, Michal static bool 1598456a5849SKalderon, Michal qed_iwarp_ep_exists(struct qed_hwfn *p_hwfn, struct qed_iwarp_cm_info *cm_info) 1599456a5849SKalderon, Michal { 1600456a5849SKalderon, Michal struct qed_iwarp_ep *ep = NULL; 1601456a5849SKalderon, Michal bool found = false; 1602456a5849SKalderon, Michal 1603456a5849SKalderon, Michal list_for_each_entry(ep, 1604456a5849SKalderon, Michal &p_hwfn->p_rdma_info->iwarp.ep_list, 1605456a5849SKalderon, Michal list_entry) { 1606456a5849SKalderon, Michal if ((ep->cm_info.local_port == cm_info->local_port) && 1607456a5849SKalderon, Michal (ep->cm_info.remote_port == cm_info->remote_port) && 1608456a5849SKalderon, Michal (ep->cm_info.vlan == cm_info->vlan) && 1609456a5849SKalderon, Michal !memcmp(&ep->cm_info.local_ip, cm_info->local_ip, 1610456a5849SKalderon, Michal sizeof(cm_info->local_ip)) && 1611456a5849SKalderon, Michal !memcmp(&ep->cm_info.remote_ip, cm_info->remote_ip, 1612456a5849SKalderon, Michal sizeof(cm_info->remote_ip))) { 1613456a5849SKalderon, Michal found = true; 1614456a5849SKalderon, Michal break; 1615456a5849SKalderon, Michal } 1616456a5849SKalderon, Michal } 1617456a5849SKalderon, Michal 1618456a5849SKalderon, Michal if (found) { 1619456a5849SKalderon, Michal DP_NOTICE(p_hwfn, 1620456a5849SKalderon, Michal "SYN received on active connection - dropping\n"); 1621456a5849SKalderon, Michal qed_iwarp_print_cm_info(p_hwfn, cm_info); 1622456a5849SKalderon, Michal 1623456a5849SKalderon, Michal return true; 1624456a5849SKalderon, Michal } 1625456a5849SKalderon, Michal 1626456a5849SKalderon, Michal return false; 1627456a5849SKalderon, Michal } 1628456a5849SKalderon, Michal 162965a91a6cSKalderon, Michal static struct qed_iwarp_listener * 163065a91a6cSKalderon, Michal qed_iwarp_get_listener(struct qed_hwfn *p_hwfn, 163165a91a6cSKalderon, Michal struct qed_iwarp_cm_info *cm_info) 163265a91a6cSKalderon, Michal { 163365a91a6cSKalderon, Michal struct qed_iwarp_listener *listener = NULL; 163465a91a6cSKalderon, Michal static const u32 ip_zero[4] = { 0, 0, 0, 0 }; 163565a91a6cSKalderon, Michal bool found = false; 163665a91a6cSKalderon, Michal 163765a91a6cSKalderon, Michal qed_iwarp_print_cm_info(p_hwfn, cm_info); 163865a91a6cSKalderon, Michal 163965a91a6cSKalderon, Michal list_for_each_entry(listener, 164065a91a6cSKalderon, Michal &p_hwfn->p_rdma_info->iwarp.listen_list, 164165a91a6cSKalderon, Michal list_entry) { 164265a91a6cSKalderon, Michal if (listener->port == cm_info->local_port) { 164365a91a6cSKalderon, Michal if (!memcmp(listener->ip_addr, 164465a91a6cSKalderon, Michal ip_zero, sizeof(ip_zero))) { 164565a91a6cSKalderon, Michal found = true; 164665a91a6cSKalderon, Michal break; 164765a91a6cSKalderon, Michal } 164865a91a6cSKalderon, Michal 164965a91a6cSKalderon, Michal if (!memcmp(listener->ip_addr, 165065a91a6cSKalderon, Michal cm_info->local_ip, 165165a91a6cSKalderon, Michal sizeof(cm_info->local_ip)) && 165265a91a6cSKalderon, Michal (listener->vlan == cm_info->vlan)) { 165365a91a6cSKalderon, Michal found = true; 165465a91a6cSKalderon, Michal break; 165565a91a6cSKalderon, Michal } 165665a91a6cSKalderon, Michal } 165765a91a6cSKalderon, Michal } 165865a91a6cSKalderon, Michal 165965a91a6cSKalderon, Michal if (found) { 166065a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener found = %p\n", 166165a91a6cSKalderon, Michal listener); 166265a91a6cSKalderon, Michal return listener; 166365a91a6cSKalderon, Michal } 166465a91a6cSKalderon, Michal 166565a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener not found\n"); 166665a91a6cSKalderon, Michal return NULL; 166765a91a6cSKalderon, Michal } 166865a91a6cSKalderon, Michal 166965a91a6cSKalderon, Michal static int 167065a91a6cSKalderon, Michal qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn, 167165a91a6cSKalderon, Michal struct qed_iwarp_cm_info *cm_info, 167265a91a6cSKalderon, Michal void *buf, 167365a91a6cSKalderon, Michal u8 *remote_mac_addr, 167465a91a6cSKalderon, Michal u8 *local_mac_addr, 167565a91a6cSKalderon, Michal int *payload_len, int *tcp_start_offset) 167665a91a6cSKalderon, Michal { 167765a91a6cSKalderon, Michal struct vlan_ethhdr *vethh; 167865a91a6cSKalderon, Michal bool vlan_valid = false; 167965a91a6cSKalderon, Michal struct ipv6hdr *ip6h; 168065a91a6cSKalderon, Michal struct ethhdr *ethh; 168165a91a6cSKalderon, Michal struct tcphdr *tcph; 168265a91a6cSKalderon, Michal struct iphdr *iph; 168365a91a6cSKalderon, Michal int eth_hlen; 168465a91a6cSKalderon, Michal int ip_hlen; 168565a91a6cSKalderon, Michal int eth_type; 168665a91a6cSKalderon, Michal int i; 168765a91a6cSKalderon, Michal 168865a91a6cSKalderon, Michal ethh = buf; 168965a91a6cSKalderon, Michal eth_type = ntohs(ethh->h_proto); 169065a91a6cSKalderon, Michal if (eth_type == ETH_P_8021Q) { 169165a91a6cSKalderon, Michal vlan_valid = true; 169265a91a6cSKalderon, Michal vethh = (struct vlan_ethhdr *)ethh; 169365a91a6cSKalderon, Michal cm_info->vlan = ntohs(vethh->h_vlan_TCI) & VLAN_VID_MASK; 169465a91a6cSKalderon, Michal eth_type = ntohs(vethh->h_vlan_encapsulated_proto); 169565a91a6cSKalderon, Michal } 169665a91a6cSKalderon, Michal 169765a91a6cSKalderon, Michal eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0); 169865a91a6cSKalderon, Michal 16998be3dadfSMichal Kalderon if (!ether_addr_equal(ethh->h_dest, 17008be3dadfSMichal Kalderon p_hwfn->p_rdma_info->iwarp.mac_addr)) { 17018be3dadfSMichal Kalderon DP_VERBOSE(p_hwfn, 17028be3dadfSMichal Kalderon QED_MSG_RDMA, 17038be3dadfSMichal Kalderon "Got unexpected mac %pM instead of %pM\n", 17048be3dadfSMichal Kalderon ethh->h_dest, p_hwfn->p_rdma_info->iwarp.mac_addr); 17058be3dadfSMichal Kalderon return -EINVAL; 17068be3dadfSMichal Kalderon } 17078be3dadfSMichal Kalderon 1708456a5849SKalderon, Michal ether_addr_copy(remote_mac_addr, ethh->h_source); 1709456a5849SKalderon, Michal ether_addr_copy(local_mac_addr, ethh->h_dest); 171065a91a6cSKalderon, Michal 171165a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_type =%d source mac: %pM\n", 171265a91a6cSKalderon, Michal eth_type, ethh->h_source); 171365a91a6cSKalderon, Michal 171465a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_hlen=%d destination mac: %pM\n", 171565a91a6cSKalderon, Michal eth_hlen, ethh->h_dest); 171665a91a6cSKalderon, Michal 171765a91a6cSKalderon, Michal iph = (struct iphdr *)((u8 *)(ethh) + eth_hlen); 171865a91a6cSKalderon, Michal 171965a91a6cSKalderon, Michal if (eth_type == ETH_P_IP) { 172016da0904SMichal Kalderon if (iph->protocol != IPPROTO_TCP) { 172116da0904SMichal Kalderon DP_NOTICE(p_hwfn, 172216da0904SMichal Kalderon "Unexpected ip protocol on ll2 %x\n", 172316da0904SMichal Kalderon iph->protocol); 172416da0904SMichal Kalderon return -EINVAL; 172516da0904SMichal Kalderon } 172616da0904SMichal Kalderon 172765a91a6cSKalderon, Michal cm_info->local_ip[0] = ntohl(iph->daddr); 172865a91a6cSKalderon, Michal cm_info->remote_ip[0] = ntohl(iph->saddr); 172977f2d753SNathan Chancellor cm_info->ip_version = QED_TCP_IPV4; 173065a91a6cSKalderon, Michal 173165a91a6cSKalderon, Michal ip_hlen = (iph->ihl) * sizeof(u32); 173265a91a6cSKalderon, Michal *payload_len = ntohs(iph->tot_len) - ip_hlen; 173365a91a6cSKalderon, Michal } else if (eth_type == ETH_P_IPV6) { 173465a91a6cSKalderon, Michal ip6h = (struct ipv6hdr *)iph; 173516da0904SMichal Kalderon 173616da0904SMichal Kalderon if (ip6h->nexthdr != IPPROTO_TCP) { 173716da0904SMichal Kalderon DP_NOTICE(p_hwfn, 173816da0904SMichal Kalderon "Unexpected ip protocol on ll2 %x\n", 173916da0904SMichal Kalderon iph->protocol); 174016da0904SMichal Kalderon return -EINVAL; 174116da0904SMichal Kalderon } 174216da0904SMichal Kalderon 174365a91a6cSKalderon, Michal for (i = 0; i < 4; i++) { 174465a91a6cSKalderon, Michal cm_info->local_ip[i] = 174565a91a6cSKalderon, Michal ntohl(ip6h->daddr.in6_u.u6_addr32[i]); 174665a91a6cSKalderon, Michal cm_info->remote_ip[i] = 174765a91a6cSKalderon, Michal ntohl(ip6h->saddr.in6_u.u6_addr32[i]); 174865a91a6cSKalderon, Michal } 174977f2d753SNathan Chancellor cm_info->ip_version = QED_TCP_IPV6; 175065a91a6cSKalderon, Michal 175165a91a6cSKalderon, Michal ip_hlen = sizeof(*ip6h); 175265a91a6cSKalderon, Michal *payload_len = ntohs(ip6h->payload_len); 175365a91a6cSKalderon, Michal } else { 175465a91a6cSKalderon, Michal DP_NOTICE(p_hwfn, "Unexpected ethertype on ll2 %x\n", eth_type); 175565a91a6cSKalderon, Michal return -EINVAL; 175665a91a6cSKalderon, Michal } 175765a91a6cSKalderon, Michal 175865a91a6cSKalderon, Michal tcph = (struct tcphdr *)((u8 *)iph + ip_hlen); 175965a91a6cSKalderon, Michal 176065a91a6cSKalderon, Michal if (!tcph->syn) { 176165a91a6cSKalderon, Michal DP_NOTICE(p_hwfn, 176265a91a6cSKalderon, Michal "Only SYN type packet expected on this ll2 conn, iph->ihl=%d source=%d dest=%d\n", 176365a91a6cSKalderon, Michal iph->ihl, tcph->source, tcph->dest); 176465a91a6cSKalderon, Michal return -EINVAL; 176565a91a6cSKalderon, Michal } 176665a91a6cSKalderon, Michal 176765a91a6cSKalderon, Michal cm_info->local_port = ntohs(tcph->dest); 176865a91a6cSKalderon, Michal cm_info->remote_port = ntohs(tcph->source); 176965a91a6cSKalderon, Michal 177065a91a6cSKalderon, Michal qed_iwarp_print_cm_info(p_hwfn, cm_info); 177165a91a6cSKalderon, Michal 177265a91a6cSKalderon, Michal *tcp_start_offset = eth_hlen + ip_hlen; 177365a91a6cSKalderon, Michal 177465a91a6cSKalderon, Michal return 0; 177565a91a6cSKalderon, Michal } 177665a91a6cSKalderon, Michal 1777469981b1SMichal Kalderon static struct qed_iwarp_fpdu *qed_iwarp_get_curr_fpdu(struct qed_hwfn *p_hwfn, 1778469981b1SMichal Kalderon u16 cid) 1779469981b1SMichal Kalderon { 1780469981b1SMichal Kalderon struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 1781469981b1SMichal Kalderon struct qed_iwarp_fpdu *partial_fpdu; 1782469981b1SMichal Kalderon u32 idx; 1783469981b1SMichal Kalderon 1784469981b1SMichal Kalderon idx = cid - qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_IWARP); 1785469981b1SMichal Kalderon if (idx >= iwarp_info->max_num_partial_fpdus) { 1786469981b1SMichal Kalderon DP_ERR(p_hwfn, "Invalid cid %x max_num_partial_fpdus=%x\n", cid, 1787469981b1SMichal Kalderon iwarp_info->max_num_partial_fpdus); 1788469981b1SMichal Kalderon return NULL; 1789469981b1SMichal Kalderon } 1790469981b1SMichal Kalderon 1791469981b1SMichal Kalderon partial_fpdu = &iwarp_info->partial_fpdus[idx]; 1792469981b1SMichal Kalderon 1793469981b1SMichal Kalderon return partial_fpdu; 1794469981b1SMichal Kalderon } 1795469981b1SMichal Kalderon 1796469981b1SMichal Kalderon enum qed_iwarp_mpa_pkt_type { 1797469981b1SMichal Kalderon QED_IWARP_MPA_PKT_PACKED, 1798469981b1SMichal Kalderon QED_IWARP_MPA_PKT_PARTIAL, 1799469981b1SMichal Kalderon QED_IWARP_MPA_PKT_UNALIGNED 1800469981b1SMichal Kalderon }; 1801469981b1SMichal Kalderon 1802c7d1d839SMichal Kalderon #define QED_IWARP_INVALID_FPDU_LENGTH 0xffff 1803469981b1SMichal Kalderon #define QED_IWARP_MPA_FPDU_LENGTH_SIZE (2) 1804469981b1SMichal Kalderon #define QED_IWARP_MPA_CRC32_DIGEST_SIZE (4) 1805469981b1SMichal Kalderon 1806469981b1SMichal Kalderon /* Pad to multiple of 4 */ 1807469981b1SMichal Kalderon #define QED_IWARP_PDU_DATA_LEN_WITH_PAD(data_len) ALIGN(data_len, 4) 1808469981b1SMichal Kalderon #define QED_IWARP_FPDU_LEN_WITH_PAD(_mpa_len) \ 1809469981b1SMichal Kalderon (QED_IWARP_PDU_DATA_LEN_WITH_PAD((_mpa_len) + \ 1810469981b1SMichal Kalderon QED_IWARP_MPA_FPDU_LENGTH_SIZE) + \ 1811469981b1SMichal Kalderon QED_IWARP_MPA_CRC32_DIGEST_SIZE) 1812469981b1SMichal Kalderon 1813ae3488ffSMichal Kalderon /* fpdu can be fragmented over maximum 3 bds: header, partial mpa, unaligned */ 1814ae3488ffSMichal Kalderon #define QED_IWARP_MAX_BDS_PER_FPDU 3 1815469981b1SMichal Kalderon 18164f4aaa17SHernán Gonzalez static const char * const pkt_type_str[] = { 1817469981b1SMichal Kalderon "QED_IWARP_MPA_PKT_PACKED", 1818469981b1SMichal Kalderon "QED_IWARP_MPA_PKT_PARTIAL", 1819469981b1SMichal Kalderon "QED_IWARP_MPA_PKT_UNALIGNED" 1820469981b1SMichal Kalderon }; 1821469981b1SMichal Kalderon 18221e28eaadSMichal Kalderon static int 18231e28eaadSMichal Kalderon qed_iwarp_recycle_pkt(struct qed_hwfn *p_hwfn, 18241e28eaadSMichal Kalderon struct qed_iwarp_fpdu *fpdu, 18251e28eaadSMichal Kalderon struct qed_iwarp_ll2_buff *buf); 18261e28eaadSMichal Kalderon 1827469981b1SMichal Kalderon static enum qed_iwarp_mpa_pkt_type 1828469981b1SMichal Kalderon qed_iwarp_mpa_classify(struct qed_hwfn *p_hwfn, 1829469981b1SMichal Kalderon struct qed_iwarp_fpdu *fpdu, 1830469981b1SMichal Kalderon u16 tcp_payload_len, u8 *mpa_data) 1831469981b1SMichal Kalderon { 1832469981b1SMichal Kalderon enum qed_iwarp_mpa_pkt_type pkt_type; 1833469981b1SMichal Kalderon u16 mpa_len; 1834469981b1SMichal Kalderon 1835469981b1SMichal Kalderon if (fpdu->incomplete_bytes) { 1836469981b1SMichal Kalderon pkt_type = QED_IWARP_MPA_PKT_UNALIGNED; 1837469981b1SMichal Kalderon goto out; 1838469981b1SMichal Kalderon } 1839469981b1SMichal Kalderon 1840c7d1d839SMichal Kalderon /* special case of one byte remaining... 1841c7d1d839SMichal Kalderon * lower byte will be read next packet 1842c7d1d839SMichal Kalderon */ 1843c7d1d839SMichal Kalderon if (tcp_payload_len == 1) { 1844c7d1d839SMichal Kalderon fpdu->fpdu_length = *mpa_data << BITS_PER_BYTE; 1845c7d1d839SMichal Kalderon pkt_type = QED_IWARP_MPA_PKT_PARTIAL; 1846c7d1d839SMichal Kalderon goto out; 1847c7d1d839SMichal Kalderon } 1848c7d1d839SMichal Kalderon 1849469981b1SMichal Kalderon mpa_len = ntohs(*((u16 *)(mpa_data))); 1850469981b1SMichal Kalderon fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len); 1851469981b1SMichal Kalderon 1852469981b1SMichal Kalderon if (fpdu->fpdu_length <= tcp_payload_len) 1853469981b1SMichal Kalderon pkt_type = QED_IWARP_MPA_PKT_PACKED; 1854469981b1SMichal Kalderon else 1855469981b1SMichal Kalderon pkt_type = QED_IWARP_MPA_PKT_PARTIAL; 1856469981b1SMichal Kalderon 1857469981b1SMichal Kalderon out: 1858469981b1SMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 1859469981b1SMichal Kalderon "MPA_ALIGN: %s: fpdu_length=0x%x tcp_payload_len:0x%x\n", 1860469981b1SMichal Kalderon pkt_type_str[pkt_type], fpdu->fpdu_length, tcp_payload_len); 1861469981b1SMichal Kalderon 1862469981b1SMichal Kalderon return pkt_type; 1863469981b1SMichal Kalderon } 1864469981b1SMichal Kalderon 1865469981b1SMichal Kalderon static void 1866469981b1SMichal Kalderon qed_iwarp_init_fpdu(struct qed_iwarp_ll2_buff *buf, 1867469981b1SMichal Kalderon struct qed_iwarp_fpdu *fpdu, 1868469981b1SMichal Kalderon struct unaligned_opaque_data *pkt_data, 1869469981b1SMichal Kalderon u16 tcp_payload_size, u8 placement_offset) 1870469981b1SMichal Kalderon { 1871469981b1SMichal Kalderon fpdu->mpa_buf = buf; 1872469981b1SMichal Kalderon fpdu->pkt_hdr = buf->data_phys_addr + placement_offset; 1873469981b1SMichal Kalderon fpdu->pkt_hdr_size = pkt_data->tcp_payload_offset; 1874469981b1SMichal Kalderon fpdu->mpa_frag = buf->data_phys_addr + pkt_data->first_mpa_offset; 1875469981b1SMichal Kalderon fpdu->mpa_frag_virt = (u8 *)(buf->data) + pkt_data->first_mpa_offset; 1876469981b1SMichal Kalderon 1877c7d1d839SMichal Kalderon if (tcp_payload_size == 1) 1878c7d1d839SMichal Kalderon fpdu->incomplete_bytes = QED_IWARP_INVALID_FPDU_LENGTH; 1879c7d1d839SMichal Kalderon else if (tcp_payload_size < fpdu->fpdu_length) 1880469981b1SMichal Kalderon fpdu->incomplete_bytes = fpdu->fpdu_length - tcp_payload_size; 1881469981b1SMichal Kalderon else 1882469981b1SMichal Kalderon fpdu->incomplete_bytes = 0; /* complete fpdu */ 1883469981b1SMichal Kalderon 1884469981b1SMichal Kalderon fpdu->mpa_frag_len = fpdu->fpdu_length - fpdu->incomplete_bytes; 1885469981b1SMichal Kalderon } 1886469981b1SMichal Kalderon 18871e28eaadSMichal Kalderon static int 18881e28eaadSMichal Kalderon qed_iwarp_cp_pkt(struct qed_hwfn *p_hwfn, 18891e28eaadSMichal Kalderon struct qed_iwarp_fpdu *fpdu, 18901e28eaadSMichal Kalderon struct unaligned_opaque_data *pkt_data, 18911e28eaadSMichal Kalderon struct qed_iwarp_ll2_buff *buf, u16 tcp_payload_size) 18921e28eaadSMichal Kalderon { 18931e28eaadSMichal Kalderon u8 *tmp_buf = p_hwfn->p_rdma_info->iwarp.mpa_intermediate_buf; 18941e28eaadSMichal Kalderon int rc; 18951e28eaadSMichal Kalderon 18961e28eaadSMichal Kalderon /* need to copy the data from the partial packet stored in fpdu 18971e28eaadSMichal Kalderon * to the new buf, for this we also need to move the data currently 18981e28eaadSMichal Kalderon * placed on the buf. The assumption is that the buffer is big enough 18991e28eaadSMichal Kalderon * since fpdu_length <= mss, we use an intermediate buffer since 19001e28eaadSMichal Kalderon * we may need to copy the new data to an overlapping location 19011e28eaadSMichal Kalderon */ 19021e28eaadSMichal Kalderon if ((fpdu->mpa_frag_len + tcp_payload_size) > (u16)buf->buff_size) { 19031e28eaadSMichal Kalderon DP_ERR(p_hwfn, 19041e28eaadSMichal Kalderon "MPA ALIGN: Unexpected: buffer is not large enough for split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n", 19051e28eaadSMichal Kalderon buf->buff_size, fpdu->mpa_frag_len, 19061e28eaadSMichal Kalderon tcp_payload_size, fpdu->incomplete_bytes); 19071e28eaadSMichal Kalderon return -EINVAL; 19081e28eaadSMichal Kalderon } 19091e28eaadSMichal Kalderon 19101e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 19111e28eaadSMichal Kalderon "MPA ALIGN Copying fpdu: [%p, %d] [%p, %d]\n", 19121e28eaadSMichal Kalderon fpdu->mpa_frag_virt, fpdu->mpa_frag_len, 19131e28eaadSMichal Kalderon (u8 *)(buf->data) + pkt_data->first_mpa_offset, 19141e28eaadSMichal Kalderon tcp_payload_size); 19151e28eaadSMichal Kalderon 19161e28eaadSMichal Kalderon memcpy(tmp_buf, fpdu->mpa_frag_virt, fpdu->mpa_frag_len); 19171e28eaadSMichal Kalderon memcpy(tmp_buf + fpdu->mpa_frag_len, 19181e28eaadSMichal Kalderon (u8 *)(buf->data) + pkt_data->first_mpa_offset, 19191e28eaadSMichal Kalderon tcp_payload_size); 19201e28eaadSMichal Kalderon 19211e28eaadSMichal Kalderon rc = qed_iwarp_recycle_pkt(p_hwfn, fpdu, fpdu->mpa_buf); 19221e28eaadSMichal Kalderon if (rc) 19231e28eaadSMichal Kalderon return rc; 19241e28eaadSMichal Kalderon 19251e28eaadSMichal Kalderon /* If we managed to post the buffer copy the data to the new buffer 19261e28eaadSMichal Kalderon * o/w this will occur in the next round... 19271e28eaadSMichal Kalderon */ 19281e28eaadSMichal Kalderon memcpy((u8 *)(buf->data), tmp_buf, 19291e28eaadSMichal Kalderon fpdu->mpa_frag_len + tcp_payload_size); 19301e28eaadSMichal Kalderon 19311e28eaadSMichal Kalderon fpdu->mpa_buf = buf; 19321e28eaadSMichal Kalderon /* fpdu->pkt_hdr remains as is */ 19331e28eaadSMichal Kalderon /* fpdu->mpa_frag is overridden with new buf */ 19341e28eaadSMichal Kalderon fpdu->mpa_frag = buf->data_phys_addr; 19351e28eaadSMichal Kalderon fpdu->mpa_frag_virt = buf->data; 19361e28eaadSMichal Kalderon fpdu->mpa_frag_len += tcp_payload_size; 19371e28eaadSMichal Kalderon 19381e28eaadSMichal Kalderon fpdu->incomplete_bytes -= tcp_payload_size; 19391e28eaadSMichal Kalderon 19401e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, 19411e28eaadSMichal Kalderon QED_MSG_RDMA, 19421e28eaadSMichal Kalderon "MPA ALIGN: split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n", 19431e28eaadSMichal Kalderon buf->buff_size, fpdu->mpa_frag_len, tcp_payload_size, 19441e28eaadSMichal Kalderon fpdu->incomplete_bytes); 19451e28eaadSMichal Kalderon 19461e28eaadSMichal Kalderon return 0; 19471e28eaadSMichal Kalderon } 19481e28eaadSMichal Kalderon 1949c7d1d839SMichal Kalderon static void 1950c7d1d839SMichal Kalderon qed_iwarp_update_fpdu_length(struct qed_hwfn *p_hwfn, 1951c7d1d839SMichal Kalderon struct qed_iwarp_fpdu *fpdu, u8 *mpa_data) 1952c7d1d839SMichal Kalderon { 1953c7d1d839SMichal Kalderon u16 mpa_len; 1954c7d1d839SMichal Kalderon 1955c7d1d839SMichal Kalderon /* Update incomplete packets if needed */ 1956c7d1d839SMichal Kalderon if (fpdu->incomplete_bytes == QED_IWARP_INVALID_FPDU_LENGTH) { 1957c7d1d839SMichal Kalderon /* Missing lower byte is now available */ 1958c7d1d839SMichal Kalderon mpa_len = fpdu->fpdu_length | *mpa_data; 1959c7d1d839SMichal Kalderon fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len); 1960c7d1d839SMichal Kalderon /* one byte of hdr */ 1961933e8c91SMichal Kalderon fpdu->mpa_frag_len = 1; 1962c7d1d839SMichal Kalderon fpdu->incomplete_bytes = fpdu->fpdu_length - 1; 1963c7d1d839SMichal Kalderon DP_VERBOSE(p_hwfn, 1964c7d1d839SMichal Kalderon QED_MSG_RDMA, 1965c7d1d839SMichal Kalderon "MPA_ALIGN: Partial header mpa_len=%x fpdu_length=%x incomplete_bytes=%x\n", 1966c7d1d839SMichal Kalderon mpa_len, fpdu->fpdu_length, fpdu->incomplete_bytes); 1967c7d1d839SMichal Kalderon } 1968c7d1d839SMichal Kalderon } 1969c7d1d839SMichal Kalderon 19701e28eaadSMichal Kalderon #define QED_IWARP_IS_RIGHT_EDGE(_curr_pkt) \ 19711e28eaadSMichal Kalderon (GET_FIELD((_curr_pkt)->flags, \ 19721e28eaadSMichal Kalderon UNALIGNED_OPAQUE_DATA_PKT_REACHED_WIN_RIGHT_EDGE)) 19731e28eaadSMichal Kalderon 19741e28eaadSMichal Kalderon /* This function is used to recycle a buffer using the ll2 drop option. It 19751e28eaadSMichal Kalderon * uses the mechanism to ensure that all buffers posted to tx before this one 19761e28eaadSMichal Kalderon * were completed. The buffer sent here will be sent as a cookie in the tx 19771e28eaadSMichal Kalderon * completion function and can then be reposted to rx chain when done. The flow 19781e28eaadSMichal Kalderon * that requires this is the flow where a FPDU splits over more than 3 tcp 19791e28eaadSMichal Kalderon * segments. In this case the driver needs to re-post a rx buffer instead of 19801e28eaadSMichal Kalderon * the one received, but driver can't simply repost a buffer it copied from 19811e28eaadSMichal Kalderon * as there is a case where the buffer was originally a packed FPDU, and is 19821e28eaadSMichal Kalderon * partially posted to FW. Driver needs to ensure FW is done with it. 19831e28eaadSMichal Kalderon */ 19841e28eaadSMichal Kalderon static int 19851e28eaadSMichal Kalderon qed_iwarp_recycle_pkt(struct qed_hwfn *p_hwfn, 19861e28eaadSMichal Kalderon struct qed_iwarp_fpdu *fpdu, 19871e28eaadSMichal Kalderon struct qed_iwarp_ll2_buff *buf) 19881e28eaadSMichal Kalderon { 19891e28eaadSMichal Kalderon struct qed_ll2_tx_pkt_info tx_pkt; 19901e28eaadSMichal Kalderon u8 ll2_handle; 19911e28eaadSMichal Kalderon int rc; 19921e28eaadSMichal Kalderon 19931e28eaadSMichal Kalderon memset(&tx_pkt, 0, sizeof(tx_pkt)); 19941e28eaadSMichal Kalderon tx_pkt.num_of_bds = 1; 19951e28eaadSMichal Kalderon tx_pkt.tx_dest = QED_LL2_TX_DEST_DROP; 19961e28eaadSMichal Kalderon tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; 19971e28eaadSMichal Kalderon tx_pkt.first_frag = fpdu->pkt_hdr; 19981e28eaadSMichal Kalderon tx_pkt.first_frag_len = fpdu->pkt_hdr_size; 19991e28eaadSMichal Kalderon buf->piggy_buf = NULL; 20001e28eaadSMichal Kalderon tx_pkt.cookie = buf; 20011e28eaadSMichal Kalderon 20021e28eaadSMichal Kalderon ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; 20031e28eaadSMichal Kalderon 20041e28eaadSMichal Kalderon rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); 20051e28eaadSMichal Kalderon if (rc) 20061e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 20071e28eaadSMichal Kalderon "Can't drop packet rc=%d\n", rc); 20081e28eaadSMichal Kalderon 20091e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, 20101e28eaadSMichal Kalderon QED_MSG_RDMA, 20111e28eaadSMichal Kalderon "MPA_ALIGN: send drop tx packet [%lx, 0x%x], buf=%p, rc=%d\n", 20121e28eaadSMichal Kalderon (unsigned long int)tx_pkt.first_frag, 20131e28eaadSMichal Kalderon tx_pkt.first_frag_len, buf, rc); 20141e28eaadSMichal Kalderon 20151e28eaadSMichal Kalderon return rc; 20161e28eaadSMichal Kalderon } 20171e28eaadSMichal Kalderon 20181e28eaadSMichal Kalderon static int 20191e28eaadSMichal Kalderon qed_iwarp_win_right_edge(struct qed_hwfn *p_hwfn, struct qed_iwarp_fpdu *fpdu) 20201e28eaadSMichal Kalderon { 20211e28eaadSMichal Kalderon struct qed_ll2_tx_pkt_info tx_pkt; 20221e28eaadSMichal Kalderon u8 ll2_handle; 20231e28eaadSMichal Kalderon int rc; 20241e28eaadSMichal Kalderon 20251e28eaadSMichal Kalderon memset(&tx_pkt, 0, sizeof(tx_pkt)); 20261e28eaadSMichal Kalderon tx_pkt.num_of_bds = 1; 20271e28eaadSMichal Kalderon tx_pkt.tx_dest = QED_LL2_TX_DEST_LB; 20281e28eaadSMichal Kalderon tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; 20291e28eaadSMichal Kalderon 20301e28eaadSMichal Kalderon tx_pkt.first_frag = fpdu->pkt_hdr; 20311e28eaadSMichal Kalderon tx_pkt.first_frag_len = fpdu->pkt_hdr_size; 20321e28eaadSMichal Kalderon tx_pkt.enable_ip_cksum = true; 20331e28eaadSMichal Kalderon tx_pkt.enable_l4_cksum = true; 20341e28eaadSMichal Kalderon tx_pkt.calc_ip_len = true; 20351e28eaadSMichal Kalderon /* vlan overload with enum iwarp_ll2_tx_queues */ 20361e28eaadSMichal Kalderon tx_pkt.vlan = IWARP_LL2_ALIGNED_RIGHT_TRIMMED_TX_QUEUE; 20371e28eaadSMichal Kalderon 20381e28eaadSMichal Kalderon ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; 20391e28eaadSMichal Kalderon 20401e28eaadSMichal Kalderon rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); 20411e28eaadSMichal Kalderon if (rc) 20421e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 20431e28eaadSMichal Kalderon "Can't send right edge rc=%d\n", rc); 20441e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, 20451e28eaadSMichal Kalderon QED_MSG_RDMA, 20461e28eaadSMichal Kalderon "MPA_ALIGN: Sent right edge FPDU num_bds=%d [%lx, 0x%x], rc=%d\n", 20471e28eaadSMichal Kalderon tx_pkt.num_of_bds, 20481e28eaadSMichal Kalderon (unsigned long int)tx_pkt.first_frag, 20491e28eaadSMichal Kalderon tx_pkt.first_frag_len, rc); 20501e28eaadSMichal Kalderon 20511e28eaadSMichal Kalderon return rc; 20521e28eaadSMichal Kalderon } 20531e28eaadSMichal Kalderon 2054469981b1SMichal Kalderon static int 2055469981b1SMichal Kalderon qed_iwarp_send_fpdu(struct qed_hwfn *p_hwfn, 2056469981b1SMichal Kalderon struct qed_iwarp_fpdu *fpdu, 2057469981b1SMichal Kalderon struct unaligned_opaque_data *curr_pkt, 2058469981b1SMichal Kalderon struct qed_iwarp_ll2_buff *buf, 2059469981b1SMichal Kalderon u16 tcp_payload_size, enum qed_iwarp_mpa_pkt_type pkt_type) 2060469981b1SMichal Kalderon { 2061469981b1SMichal Kalderon struct qed_ll2_tx_pkt_info tx_pkt; 2062469981b1SMichal Kalderon u8 ll2_handle; 2063469981b1SMichal Kalderon int rc; 2064469981b1SMichal Kalderon 2065469981b1SMichal Kalderon memset(&tx_pkt, 0, sizeof(tx_pkt)); 2066469981b1SMichal Kalderon 2067469981b1SMichal Kalderon /* An unaligned packet means it's split over two tcp segments. So the 2068469981b1SMichal Kalderon * complete packet requires 3 bds, one for the header, one for the 2069469981b1SMichal Kalderon * part of the fpdu of the first tcp segment, and the last fragment 2070469981b1SMichal Kalderon * will point to the remainder of the fpdu. A packed pdu, requires only 2071469981b1SMichal Kalderon * two bds, one for the header and one for the data. 2072469981b1SMichal Kalderon */ 2073469981b1SMichal Kalderon tx_pkt.num_of_bds = (pkt_type == QED_IWARP_MPA_PKT_UNALIGNED) ? 3 : 2; 2074469981b1SMichal Kalderon tx_pkt.tx_dest = QED_LL2_TX_DEST_LB; 2075469981b1SMichal Kalderon tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; /* offset in words */ 2076469981b1SMichal Kalderon 2077469981b1SMichal Kalderon /* Send the mpa_buf only with the last fpdu (in case of packed) */ 2078469981b1SMichal Kalderon if (pkt_type == QED_IWARP_MPA_PKT_UNALIGNED || 2079469981b1SMichal Kalderon tcp_payload_size <= fpdu->fpdu_length) 2080469981b1SMichal Kalderon tx_pkt.cookie = fpdu->mpa_buf; 2081469981b1SMichal Kalderon 2082469981b1SMichal Kalderon tx_pkt.first_frag = fpdu->pkt_hdr; 2083469981b1SMichal Kalderon tx_pkt.first_frag_len = fpdu->pkt_hdr_size; 2084469981b1SMichal Kalderon tx_pkt.enable_ip_cksum = true; 2085469981b1SMichal Kalderon tx_pkt.enable_l4_cksum = true; 2086469981b1SMichal Kalderon tx_pkt.calc_ip_len = true; 2087469981b1SMichal Kalderon /* vlan overload with enum iwarp_ll2_tx_queues */ 2088469981b1SMichal Kalderon tx_pkt.vlan = IWARP_LL2_ALIGNED_TX_QUEUE; 2089469981b1SMichal Kalderon 2090d531038eSMichal Kalderon /* special case of unaligned packet and not packed, need to send 2091d531038eSMichal Kalderon * both buffers as cookie to release. 2092d531038eSMichal Kalderon */ 2093d531038eSMichal Kalderon if (tcp_payload_size == fpdu->incomplete_bytes) 2094d531038eSMichal Kalderon fpdu->mpa_buf->piggy_buf = buf; 2095d531038eSMichal Kalderon 2096469981b1SMichal Kalderon ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; 2097469981b1SMichal Kalderon 2098469981b1SMichal Kalderon /* Set first fragment to header */ 2099469981b1SMichal Kalderon rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); 2100469981b1SMichal Kalderon if (rc) 2101469981b1SMichal Kalderon goto out; 2102469981b1SMichal Kalderon 2103469981b1SMichal Kalderon /* Set second fragment to first part of packet */ 2104469981b1SMichal Kalderon rc = qed_ll2_set_fragment_of_tx_packet(p_hwfn, ll2_handle, 2105469981b1SMichal Kalderon fpdu->mpa_frag, 2106469981b1SMichal Kalderon fpdu->mpa_frag_len); 2107469981b1SMichal Kalderon if (rc) 2108469981b1SMichal Kalderon goto out; 2109469981b1SMichal Kalderon 2110469981b1SMichal Kalderon if (!fpdu->incomplete_bytes) 2111469981b1SMichal Kalderon goto out; 2112469981b1SMichal Kalderon 2113469981b1SMichal Kalderon /* Set third fragment to second part of the packet */ 2114469981b1SMichal Kalderon rc = qed_ll2_set_fragment_of_tx_packet(p_hwfn, 2115469981b1SMichal Kalderon ll2_handle, 2116469981b1SMichal Kalderon buf->data_phys_addr + 2117469981b1SMichal Kalderon curr_pkt->first_mpa_offset, 2118469981b1SMichal Kalderon fpdu->incomplete_bytes); 2119469981b1SMichal Kalderon out: 2120469981b1SMichal Kalderon DP_VERBOSE(p_hwfn, 2121469981b1SMichal Kalderon QED_MSG_RDMA, 2122469981b1SMichal Kalderon "MPA_ALIGN: Sent FPDU num_bds=%d first_frag_len=%x, mpa_frag_len=0x%x, incomplete_bytes:0x%x rc=%d\n", 2123469981b1SMichal Kalderon tx_pkt.num_of_bds, 2124469981b1SMichal Kalderon tx_pkt.first_frag_len, 2125469981b1SMichal Kalderon fpdu->mpa_frag_len, 2126469981b1SMichal Kalderon fpdu->incomplete_bytes, rc); 2127469981b1SMichal Kalderon 2128469981b1SMichal Kalderon return rc; 2129469981b1SMichal Kalderon } 2130469981b1SMichal Kalderon 2131ae3488ffSMichal Kalderon static void 2132fcb39f6cSMichal Kalderon qed_iwarp_mpa_get_data(struct qed_hwfn *p_hwfn, 2133fcb39f6cSMichal Kalderon struct unaligned_opaque_data *curr_pkt, 2134fcb39f6cSMichal Kalderon u32 opaque_data0, u32 opaque_data1) 2135fcb39f6cSMichal Kalderon { 2136fcb39f6cSMichal Kalderon u64 opaque_data; 2137fcb39f6cSMichal Kalderon 2138fcb39f6cSMichal Kalderon opaque_data = HILO_64(opaque_data1, opaque_data0); 2139fcb39f6cSMichal Kalderon *curr_pkt = *((struct unaligned_opaque_data *)&opaque_data); 2140fcb39f6cSMichal Kalderon 2141fcb39f6cSMichal Kalderon curr_pkt->first_mpa_offset = curr_pkt->tcp_payload_offset + 2142fcb39f6cSMichal Kalderon le16_to_cpu(curr_pkt->first_mpa_offset); 2143fcb39f6cSMichal Kalderon curr_pkt->cid = le32_to_cpu(curr_pkt->cid); 2144fcb39f6cSMichal Kalderon } 2145fcb39f6cSMichal Kalderon 2146fcb39f6cSMichal Kalderon /* This function is called when an unaligned or incomplete MPA packet arrives 2147fcb39f6cSMichal Kalderon * driver needs to align the packet, perhaps using previous data and send 2148fcb39f6cSMichal Kalderon * it down to FW once it is aligned. 2149fcb39f6cSMichal Kalderon */ 2150fcb39f6cSMichal Kalderon static int 2151fcb39f6cSMichal Kalderon qed_iwarp_process_mpa_pkt(struct qed_hwfn *p_hwfn, 2152fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf *mpa_buf) 2153fcb39f6cSMichal Kalderon { 2154469981b1SMichal Kalderon struct unaligned_opaque_data *curr_pkt = &mpa_buf->data; 2155fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_buff *buf = mpa_buf->ll2_buf; 2156469981b1SMichal Kalderon enum qed_iwarp_mpa_pkt_type pkt_type; 2157469981b1SMichal Kalderon struct qed_iwarp_fpdu *fpdu; 2158fcb39f6cSMichal Kalderon int rc = -EINVAL; 2159469981b1SMichal Kalderon u8 *mpa_data; 2160fcb39f6cSMichal Kalderon 2161469981b1SMichal Kalderon fpdu = qed_iwarp_get_curr_fpdu(p_hwfn, curr_pkt->cid & 0xffff); 2162469981b1SMichal Kalderon if (!fpdu) { /* something corrupt with cid, post rx back */ 2163469981b1SMichal Kalderon DP_ERR(p_hwfn, "Invalid cid, drop and post back to rx cid=%x\n", 2164469981b1SMichal Kalderon curr_pkt->cid); 2165469981b1SMichal Kalderon goto err; 2166469981b1SMichal Kalderon } 2167469981b1SMichal Kalderon 2168469981b1SMichal Kalderon do { 2169469981b1SMichal Kalderon mpa_data = ((u8 *)(buf->data) + curr_pkt->first_mpa_offset); 2170469981b1SMichal Kalderon 2171469981b1SMichal Kalderon pkt_type = qed_iwarp_mpa_classify(p_hwfn, fpdu, 2172469981b1SMichal Kalderon mpa_buf->tcp_payload_len, 2173469981b1SMichal Kalderon mpa_data); 2174469981b1SMichal Kalderon 2175469981b1SMichal Kalderon switch (pkt_type) { 2176469981b1SMichal Kalderon case QED_IWARP_MPA_PKT_PARTIAL: 2177469981b1SMichal Kalderon qed_iwarp_init_fpdu(buf, fpdu, 2178469981b1SMichal Kalderon curr_pkt, 2179469981b1SMichal Kalderon mpa_buf->tcp_payload_len, 2180469981b1SMichal Kalderon mpa_buf->placement_offset); 2181469981b1SMichal Kalderon 21821e28eaadSMichal Kalderon if (!QED_IWARP_IS_RIGHT_EDGE(curr_pkt)) { 21831e28eaadSMichal Kalderon mpa_buf->tcp_payload_len = 0; 21841e28eaadSMichal Kalderon break; 21851e28eaadSMichal Kalderon } 21861e28eaadSMichal Kalderon 21871e28eaadSMichal Kalderon rc = qed_iwarp_win_right_edge(p_hwfn, fpdu); 21881e28eaadSMichal Kalderon 21891e28eaadSMichal Kalderon if (rc) { 21901e28eaadSMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 21911e28eaadSMichal Kalderon "Can't send FPDU:reset rc=%d\n", rc); 21921e28eaadSMichal Kalderon memset(fpdu, 0, sizeof(*fpdu)); 21931e28eaadSMichal Kalderon break; 21941e28eaadSMichal Kalderon } 21951e28eaadSMichal Kalderon 2196469981b1SMichal Kalderon mpa_buf->tcp_payload_len = 0; 2197469981b1SMichal Kalderon break; 2198469981b1SMichal Kalderon case QED_IWARP_MPA_PKT_PACKED: 2199469981b1SMichal Kalderon qed_iwarp_init_fpdu(buf, fpdu, 2200469981b1SMichal Kalderon curr_pkt, 2201469981b1SMichal Kalderon mpa_buf->tcp_payload_len, 2202469981b1SMichal Kalderon mpa_buf->placement_offset); 2203469981b1SMichal Kalderon 2204469981b1SMichal Kalderon rc = qed_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, 2205469981b1SMichal Kalderon mpa_buf->tcp_payload_len, 2206469981b1SMichal Kalderon pkt_type); 2207469981b1SMichal Kalderon if (rc) { 2208469981b1SMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 2209469981b1SMichal Kalderon "Can't send FPDU:reset rc=%d\n", rc); 2210469981b1SMichal Kalderon memset(fpdu, 0, sizeof(*fpdu)); 2211469981b1SMichal Kalderon break; 2212469981b1SMichal Kalderon } 2213469981b1SMichal Kalderon 2214469981b1SMichal Kalderon mpa_buf->tcp_payload_len -= fpdu->fpdu_length; 2215469981b1SMichal Kalderon curr_pkt->first_mpa_offset += fpdu->fpdu_length; 2216469981b1SMichal Kalderon break; 2217469981b1SMichal Kalderon case QED_IWARP_MPA_PKT_UNALIGNED: 2218c7d1d839SMichal Kalderon qed_iwarp_update_fpdu_length(p_hwfn, fpdu, mpa_data); 22191e28eaadSMichal Kalderon if (mpa_buf->tcp_payload_len < fpdu->incomplete_bytes) { 22201e28eaadSMichal Kalderon /* special handling of fpdu split over more 22211e28eaadSMichal Kalderon * than 2 segments 22221e28eaadSMichal Kalderon */ 22231e28eaadSMichal Kalderon if (QED_IWARP_IS_RIGHT_EDGE(curr_pkt)) { 22241e28eaadSMichal Kalderon rc = qed_iwarp_win_right_edge(p_hwfn, 22251e28eaadSMichal Kalderon fpdu); 22261e28eaadSMichal Kalderon /* packet will be re-processed later */ 22271e28eaadSMichal Kalderon if (rc) 22281e28eaadSMichal Kalderon return rc; 22291e28eaadSMichal Kalderon } 22301e28eaadSMichal Kalderon 22311e28eaadSMichal Kalderon rc = qed_iwarp_cp_pkt(p_hwfn, fpdu, curr_pkt, 22321e28eaadSMichal Kalderon buf, 22331e28eaadSMichal Kalderon mpa_buf->tcp_payload_len); 22341e28eaadSMichal Kalderon if (rc) /* packet will be re-processed later */ 22351e28eaadSMichal Kalderon return rc; 22361e28eaadSMichal Kalderon 22371e28eaadSMichal Kalderon mpa_buf->tcp_payload_len = 0; 22381e28eaadSMichal Kalderon break; 22391e28eaadSMichal Kalderon } 22401e28eaadSMichal Kalderon 2241469981b1SMichal Kalderon rc = qed_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, 2242469981b1SMichal Kalderon mpa_buf->tcp_payload_len, 2243469981b1SMichal Kalderon pkt_type); 2244469981b1SMichal Kalderon if (rc) { 2245469981b1SMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 2246469981b1SMichal Kalderon "Can't send FPDU:delay rc=%d\n", rc); 2247469981b1SMichal Kalderon /* don't reset fpdu -> we need it for next 2248469981b1SMichal Kalderon * classify 2249469981b1SMichal Kalderon */ 2250469981b1SMichal Kalderon break; 2251469981b1SMichal Kalderon } 2252469981b1SMichal Kalderon 2253469981b1SMichal Kalderon mpa_buf->tcp_payload_len -= fpdu->incomplete_bytes; 2254469981b1SMichal Kalderon curr_pkt->first_mpa_offset += fpdu->incomplete_bytes; 2255469981b1SMichal Kalderon /* The framed PDU was sent - no more incomplete bytes */ 2256469981b1SMichal Kalderon fpdu->incomplete_bytes = 0; 2257469981b1SMichal Kalderon break; 2258469981b1SMichal Kalderon } 2259469981b1SMichal Kalderon } while (mpa_buf->tcp_payload_len && !rc); 2260469981b1SMichal Kalderon 2261469981b1SMichal Kalderon return rc; 2262469981b1SMichal Kalderon 2263469981b1SMichal Kalderon err: 2264fcb39f6cSMichal Kalderon qed_iwarp_ll2_post_rx(p_hwfn, 2265fcb39f6cSMichal Kalderon buf, 2266fcb39f6cSMichal Kalderon p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle); 2267fcb39f6cSMichal Kalderon return rc; 2268fcb39f6cSMichal Kalderon } 2269fcb39f6cSMichal Kalderon 2270fcb39f6cSMichal Kalderon static void qed_iwarp_process_pending_pkts(struct qed_hwfn *p_hwfn) 2271fcb39f6cSMichal Kalderon { 2272fcb39f6cSMichal Kalderon struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2273fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf *mpa_buf = NULL; 2274fcb39f6cSMichal Kalderon int rc; 2275fcb39f6cSMichal Kalderon 2276fcb39f6cSMichal Kalderon while (!list_empty(&iwarp_info->mpa_buf_pending_list)) { 2277fcb39f6cSMichal Kalderon mpa_buf = list_first_entry(&iwarp_info->mpa_buf_pending_list, 2278fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf, 2279fcb39f6cSMichal Kalderon list_entry); 2280fcb39f6cSMichal Kalderon 2281fcb39f6cSMichal Kalderon rc = qed_iwarp_process_mpa_pkt(p_hwfn, mpa_buf); 2282fcb39f6cSMichal Kalderon 2283fcb39f6cSMichal Kalderon /* busy means break and continue processing later, don't 2284fcb39f6cSMichal Kalderon * remove the buf from the pending list. 2285fcb39f6cSMichal Kalderon */ 2286fcb39f6cSMichal Kalderon if (rc == -EBUSY) 2287fcb39f6cSMichal Kalderon break; 2288fcb39f6cSMichal Kalderon 2289631e871eSzhong jiang list_move_tail(&mpa_buf->list_entry, 2290631e871eSzhong jiang &iwarp_info->mpa_buf_list); 2291fcb39f6cSMichal Kalderon 2292fcb39f6cSMichal Kalderon if (rc) { /* different error, don't continue */ 2293fcb39f6cSMichal Kalderon DP_NOTICE(p_hwfn, "process pkts failed rc=%d\n", rc); 2294fcb39f6cSMichal Kalderon break; 2295fcb39f6cSMichal Kalderon } 2296fcb39f6cSMichal Kalderon } 2297fcb39f6cSMichal Kalderon } 2298fcb39f6cSMichal Kalderon 2299fcb39f6cSMichal Kalderon static void 2300ae3488ffSMichal Kalderon qed_iwarp_ll2_comp_mpa_pkt(void *cxt, struct qed_ll2_comp_rx_data *data) 2301ae3488ffSMichal Kalderon { 2302fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf *mpa_buf; 2303ae3488ffSMichal Kalderon struct qed_iwarp_info *iwarp_info; 2304ae3488ffSMichal Kalderon struct qed_hwfn *p_hwfn = cxt; 2305ae3488ffSMichal Kalderon 2306ae3488ffSMichal Kalderon iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2307fcb39f6cSMichal Kalderon mpa_buf = list_first_entry(&iwarp_info->mpa_buf_list, 2308fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf, list_entry); 2309fcb39f6cSMichal Kalderon if (!mpa_buf) { 2310fcb39f6cSMichal Kalderon DP_ERR(p_hwfn, "No free mpa buf\n"); 2311fcb39f6cSMichal Kalderon goto err; 2312fcb39f6cSMichal Kalderon } 2313fcb39f6cSMichal Kalderon 2314fcb39f6cSMichal Kalderon list_del(&mpa_buf->list_entry); 2315fcb39f6cSMichal Kalderon qed_iwarp_mpa_get_data(p_hwfn, &mpa_buf->data, 2316fcb39f6cSMichal Kalderon data->opaque_data_0, data->opaque_data_1); 2317fcb39f6cSMichal Kalderon 2318fcb39f6cSMichal Kalderon DP_VERBOSE(p_hwfn, 2319fcb39f6cSMichal Kalderon QED_MSG_RDMA, 2320fcb39f6cSMichal Kalderon "LL2 MPA CompRx payload_len:0x%x\tfirst_mpa_offset:0x%x\ttcp_payload_offset:0x%x\tflags:0x%x\tcid:0x%x\n", 2321fcb39f6cSMichal Kalderon data->length.packet_length, mpa_buf->data.first_mpa_offset, 2322fcb39f6cSMichal Kalderon mpa_buf->data.tcp_payload_offset, mpa_buf->data.flags, 2323fcb39f6cSMichal Kalderon mpa_buf->data.cid); 2324fcb39f6cSMichal Kalderon 2325fcb39f6cSMichal Kalderon mpa_buf->ll2_buf = data->cookie; 2326fcb39f6cSMichal Kalderon mpa_buf->tcp_payload_len = data->length.packet_length - 2327fcb39f6cSMichal Kalderon mpa_buf->data.first_mpa_offset; 2328fcb39f6cSMichal Kalderon mpa_buf->data.first_mpa_offset += data->u.placement_offset; 2329fcb39f6cSMichal Kalderon mpa_buf->placement_offset = data->u.placement_offset; 2330fcb39f6cSMichal Kalderon 2331fcb39f6cSMichal Kalderon list_add_tail(&mpa_buf->list_entry, &iwarp_info->mpa_buf_pending_list); 2332fcb39f6cSMichal Kalderon 2333fcb39f6cSMichal Kalderon qed_iwarp_process_pending_pkts(p_hwfn); 2334fcb39f6cSMichal Kalderon return; 2335fcb39f6cSMichal Kalderon err: 2336ae3488ffSMichal Kalderon qed_iwarp_ll2_post_rx(p_hwfn, data->cookie, 2337ae3488ffSMichal Kalderon iwarp_info->ll2_mpa_handle); 2338ae3488ffSMichal Kalderon } 2339ae3488ffSMichal Kalderon 2340b5c29ca7SKalderon, Michal static void 2341b5c29ca7SKalderon, Michal qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data) 2342b5c29ca7SKalderon, Michal { 2343b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff *buf = data->cookie; 234465a91a6cSKalderon, Michal struct qed_iwarp_listener *listener; 234565a91a6cSKalderon, Michal struct qed_ll2_tx_pkt_info tx_pkt; 234665a91a6cSKalderon, Michal struct qed_iwarp_cm_info cm_info; 2347b5c29ca7SKalderon, Michal struct qed_hwfn *p_hwfn = cxt; 234865a91a6cSKalderon, Michal u8 remote_mac_addr[ETH_ALEN]; 234965a91a6cSKalderon, Michal u8 local_mac_addr[ETH_ALEN]; 2350456a5849SKalderon, Michal struct qed_iwarp_ep *ep; 235165a91a6cSKalderon, Michal int tcp_start_offset; 235265a91a6cSKalderon, Michal u8 ll2_syn_handle; 235365a91a6cSKalderon, Michal int payload_len; 2354456a5849SKalderon, Michal u32 hdr_size; 235565a91a6cSKalderon, Michal int rc; 235665a91a6cSKalderon, Michal 235765a91a6cSKalderon, Michal memset(&cm_info, 0, sizeof(cm_info)); 235825f4535aSMichal Kalderon ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle; 23591e99c497SMichal Kalderon 23601e99c497SMichal Kalderon /* Check if packet was received with errors... */ 23611e99c497SMichal Kalderon if (data->err_flags) { 23621e99c497SMichal Kalderon DP_NOTICE(p_hwfn, "Error received on SYN packet: 0x%x\n", 23631e99c497SMichal Kalderon data->err_flags); 23641e99c497SMichal Kalderon goto err; 23651e99c497SMichal Kalderon } 23661e99c497SMichal Kalderon 2367b5c29ca7SKalderon, Michal if (GET_FIELD(data->parse_flags, 2368b5c29ca7SKalderon, Michal PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED) && 2369b5c29ca7SKalderon, Michal GET_FIELD(data->parse_flags, PARSING_AND_ERR_FLAGS_L4CHKSMERROR)) { 2370b5c29ca7SKalderon, Michal DP_NOTICE(p_hwfn, "Syn packet received with checksum error\n"); 2371b5c29ca7SKalderon, Michal goto err; 2372b5c29ca7SKalderon, Michal } 2373b5c29ca7SKalderon, Michal 237465a91a6cSKalderon, Michal rc = qed_iwarp_parse_rx_pkt(p_hwfn, &cm_info, (u8 *)(buf->data) + 237565a91a6cSKalderon, Michal data->u.placement_offset, remote_mac_addr, 237665a91a6cSKalderon, Michal local_mac_addr, &payload_len, 237765a91a6cSKalderon, Michal &tcp_start_offset); 237865a91a6cSKalderon, Michal if (rc) 237965a91a6cSKalderon, Michal goto err; 2380b5c29ca7SKalderon, Michal 238165a91a6cSKalderon, Michal /* Check if there is a listener for this 4-tuple+vlan */ 238265a91a6cSKalderon, Michal listener = qed_iwarp_get_listener(p_hwfn, &cm_info); 238365a91a6cSKalderon, Michal if (!listener) { 238465a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, 238565a91a6cSKalderon, Michal QED_MSG_RDMA, 238665a91a6cSKalderon, Michal "SYN received on tuple not listened on parse_flags=%d packet len=%d\n", 238765a91a6cSKalderon, Michal data->parse_flags, data->length.packet_length); 238865a91a6cSKalderon, Michal 238965a91a6cSKalderon, Michal memset(&tx_pkt, 0, sizeof(tx_pkt)); 239065a91a6cSKalderon, Michal tx_pkt.num_of_bds = 1; 239165a91a6cSKalderon, Michal tx_pkt.l4_hdr_offset_w = (data->length.packet_length) >> 2; 239265a91a6cSKalderon, Michal tx_pkt.tx_dest = QED_LL2_TX_DEST_LB; 239365a91a6cSKalderon, Michal tx_pkt.first_frag = buf->data_phys_addr + 239465a91a6cSKalderon, Michal data->u.placement_offset; 239565a91a6cSKalderon, Michal tx_pkt.first_frag_len = data->length.packet_length; 239665a91a6cSKalderon, Michal tx_pkt.cookie = buf; 239765a91a6cSKalderon, Michal 239865a91a6cSKalderon, Michal rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_syn_handle, 239965a91a6cSKalderon, Michal &tx_pkt, true); 240065a91a6cSKalderon, Michal 240165a91a6cSKalderon, Michal if (rc) { 240265a91a6cSKalderon, Michal DP_NOTICE(p_hwfn, 240365a91a6cSKalderon, Michal "Can't post SYN back to chip rc=%d\n", rc); 240465a91a6cSKalderon, Michal goto err; 240565a91a6cSKalderon, Michal } 240665a91a6cSKalderon, Michal return; 240765a91a6cSKalderon, Michal } 240865a91a6cSKalderon, Michal 240965a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Received syn on listening port\n"); 2410456a5849SKalderon, Michal /* There may be an open ep on this connection if this is a syn 2411456a5849SKalderon, Michal * retrasnmit... need to make sure there isn't... 2412456a5849SKalderon, Michal */ 2413456a5849SKalderon, Michal if (qed_iwarp_ep_exists(p_hwfn, &cm_info)) 2414456a5849SKalderon, Michal goto err; 2415456a5849SKalderon, Michal 2416456a5849SKalderon, Michal ep = qed_iwarp_get_free_ep(p_hwfn); 2417456a5849SKalderon, Michal if (!ep) 2418456a5849SKalderon, Michal goto err; 2419456a5849SKalderon, Michal 2420456a5849SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 2421456a5849SKalderon, Michal list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); 2422456a5849SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 2423456a5849SKalderon, Michal 2424456a5849SKalderon, Michal ether_addr_copy(ep->remote_mac_addr, remote_mac_addr); 2425456a5849SKalderon, Michal ether_addr_copy(ep->local_mac_addr, local_mac_addr); 2426456a5849SKalderon, Michal 2427456a5849SKalderon, Michal memcpy(&ep->cm_info, &cm_info, sizeof(ep->cm_info)); 2428456a5849SKalderon, Michal 2429d52c89f1SMichal Kalderon hdr_size = ((cm_info.ip_version == QED_TCP_IPV4) ? 40 : 60); 2430456a5849SKalderon, Michal ep->mss = p_hwfn->p_rdma_info->iwarp.max_mtu - hdr_size; 2431456a5849SKalderon, Michal ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss); 2432456a5849SKalderon, Michal 2433456a5849SKalderon, Michal ep->event_cb = listener->event_cb; 2434456a5849SKalderon, Michal ep->cb_context = listener->cb_context; 2435456a5849SKalderon, Michal ep->connect_mode = TCP_CONNECT_PASSIVE; 2436456a5849SKalderon, Michal 2437456a5849SKalderon, Michal ep->syn = buf; 2438456a5849SKalderon, Michal ep->syn_ip_payload_length = (u16)payload_len; 2439456a5849SKalderon, Michal ep->syn_phy_addr = buf->data_phys_addr + data->u.placement_offset + 2440456a5849SKalderon, Michal tcp_start_offset; 2441456a5849SKalderon, Michal 2442456a5849SKalderon, Michal rc = qed_iwarp_tcp_offload(p_hwfn, ep); 2443456a5849SKalderon, Michal if (rc) { 2444456a5849SKalderon, Michal qed_iwarp_return_ep(p_hwfn, ep); 2445456a5849SKalderon, Michal goto err; 2446456a5849SKalderon, Michal } 2447456a5849SKalderon, Michal 2448456a5849SKalderon, Michal return; 2449b5c29ca7SKalderon, Michal err: 245065a91a6cSKalderon, Michal qed_iwarp_ll2_post_rx(p_hwfn, buf, ll2_syn_handle); 2451b5c29ca7SKalderon, Michal } 2452b5c29ca7SKalderon, Michal 2453b5c29ca7SKalderon, Michal static void qed_iwarp_ll2_rel_rx_pkt(void *cxt, u8 connection_handle, 2454b5c29ca7SKalderon, Michal void *cookie, dma_addr_t rx_buf_addr, 2455b5c29ca7SKalderon, Michal bool b_last_packet) 2456b5c29ca7SKalderon, Michal { 2457b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff *buffer = cookie; 2458b5c29ca7SKalderon, Michal struct qed_hwfn *p_hwfn = cxt; 2459b5c29ca7SKalderon, Michal 2460b5c29ca7SKalderon, Michal dma_free_coherent(&p_hwfn->cdev->pdev->dev, buffer->buff_size, 2461b5c29ca7SKalderon, Michal buffer->data, buffer->data_phys_addr); 2462b5c29ca7SKalderon, Michal kfree(buffer); 2463b5c29ca7SKalderon, Michal } 2464b5c29ca7SKalderon, Michal 2465b5c29ca7SKalderon, Michal static void qed_iwarp_ll2_comp_tx_pkt(void *cxt, u8 connection_handle, 2466b5c29ca7SKalderon, Michal void *cookie, dma_addr_t first_frag_addr, 2467b5c29ca7SKalderon, Michal bool b_last_fragment, bool b_last_packet) 2468b5c29ca7SKalderon, Michal { 2469b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff *buffer = cookie; 2470d531038eSMichal Kalderon struct qed_iwarp_ll2_buff *piggy; 2471b5c29ca7SKalderon, Michal struct qed_hwfn *p_hwfn = cxt; 2472b5c29ca7SKalderon, Michal 2473d531038eSMichal Kalderon if (!buffer) /* can happen in packed mpa unaligned... */ 2474d531038eSMichal Kalderon return; 2475d531038eSMichal Kalderon 2476b5c29ca7SKalderon, Michal /* this was originally an rx packet, post it back */ 2477d531038eSMichal Kalderon piggy = buffer->piggy_buf; 2478d531038eSMichal Kalderon if (piggy) { 2479d531038eSMichal Kalderon buffer->piggy_buf = NULL; 2480d531038eSMichal Kalderon qed_iwarp_ll2_post_rx(p_hwfn, piggy, connection_handle); 2481d531038eSMichal Kalderon } 2482d531038eSMichal Kalderon 2483b5c29ca7SKalderon, Michal qed_iwarp_ll2_post_rx(p_hwfn, buffer, connection_handle); 2484fcb39f6cSMichal Kalderon 2485fcb39f6cSMichal Kalderon if (connection_handle == p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle) 2486fcb39f6cSMichal Kalderon qed_iwarp_process_pending_pkts(p_hwfn); 2487fcb39f6cSMichal Kalderon 2488fcb39f6cSMichal Kalderon return; 2489b5c29ca7SKalderon, Michal } 2490b5c29ca7SKalderon, Michal 2491b5c29ca7SKalderon, Michal static void qed_iwarp_ll2_rel_tx_pkt(void *cxt, u8 connection_handle, 2492b5c29ca7SKalderon, Michal void *cookie, dma_addr_t first_frag_addr, 2493b5c29ca7SKalderon, Michal bool b_last_fragment, bool b_last_packet) 2494b5c29ca7SKalderon, Michal { 2495b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff *buffer = cookie; 2496b5c29ca7SKalderon, Michal struct qed_hwfn *p_hwfn = cxt; 2497b5c29ca7SKalderon, Michal 2498b5c29ca7SKalderon, Michal if (!buffer) 2499b5c29ca7SKalderon, Michal return; 2500b5c29ca7SKalderon, Michal 2501d531038eSMichal Kalderon if (buffer->piggy_buf) { 2502d531038eSMichal Kalderon dma_free_coherent(&p_hwfn->cdev->pdev->dev, 2503d531038eSMichal Kalderon buffer->piggy_buf->buff_size, 2504d531038eSMichal Kalderon buffer->piggy_buf->data, 2505d531038eSMichal Kalderon buffer->piggy_buf->data_phys_addr); 2506d531038eSMichal Kalderon 2507d531038eSMichal Kalderon kfree(buffer->piggy_buf); 2508d531038eSMichal Kalderon } 2509d531038eSMichal Kalderon 2510b5c29ca7SKalderon, Michal dma_free_coherent(&p_hwfn->cdev->pdev->dev, buffer->buff_size, 2511b5c29ca7SKalderon, Michal buffer->data, buffer->data_phys_addr); 2512b5c29ca7SKalderon, Michal 2513b5c29ca7SKalderon, Michal kfree(buffer); 2514b5c29ca7SKalderon, Michal } 2515b5c29ca7SKalderon, Michal 2516469981b1SMichal Kalderon /* The only slowpath for iwarp ll2 is unalign flush. When this completion 2517469981b1SMichal Kalderon * is received, need to reset the FPDU. 2518469981b1SMichal Kalderon */ 2519bf774d14SYueHaibing static void 2520ae3488ffSMichal Kalderon qed_iwarp_ll2_slowpath(void *cxt, 2521ae3488ffSMichal Kalderon u8 connection_handle, 2522ae3488ffSMichal Kalderon u32 opaque_data_0, u32 opaque_data_1) 2523ae3488ffSMichal Kalderon { 2524469981b1SMichal Kalderon struct unaligned_opaque_data unalign_data; 2525469981b1SMichal Kalderon struct qed_hwfn *p_hwfn = cxt; 2526469981b1SMichal Kalderon struct qed_iwarp_fpdu *fpdu; 2527469981b1SMichal Kalderon 2528469981b1SMichal Kalderon qed_iwarp_mpa_get_data(p_hwfn, &unalign_data, 2529469981b1SMichal Kalderon opaque_data_0, opaque_data_1); 2530469981b1SMichal Kalderon 2531469981b1SMichal Kalderon DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "(0x%x) Flush fpdu\n", 2532469981b1SMichal Kalderon unalign_data.cid); 2533469981b1SMichal Kalderon 2534469981b1SMichal Kalderon fpdu = qed_iwarp_get_curr_fpdu(p_hwfn, (u16)unalign_data.cid); 2535469981b1SMichal Kalderon if (fpdu) 2536469981b1SMichal Kalderon memset(fpdu, 0, sizeof(*fpdu)); 2537ae3488ffSMichal Kalderon } 2538ae3488ffSMichal Kalderon 253979284adeSMichal Kalderon static int qed_iwarp_ll2_stop(struct qed_hwfn *p_hwfn) 2540b5c29ca7SKalderon, Michal { 2541b5c29ca7SKalderon, Michal struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2542b5c29ca7SKalderon, Michal int rc = 0; 2543b5c29ca7SKalderon, Michal 2544b5c29ca7SKalderon, Michal if (iwarp_info->ll2_syn_handle != QED_IWARP_HANDLE_INVAL) { 2545b5c29ca7SKalderon, Michal rc = qed_ll2_terminate_connection(p_hwfn, 2546b5c29ca7SKalderon, Michal iwarp_info->ll2_syn_handle); 2547b5c29ca7SKalderon, Michal if (rc) 2548b5c29ca7SKalderon, Michal DP_INFO(p_hwfn, "Failed to terminate syn connection\n"); 2549b5c29ca7SKalderon, Michal 2550b5c29ca7SKalderon, Michal qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_syn_handle); 2551b5c29ca7SKalderon, Michal iwarp_info->ll2_syn_handle = QED_IWARP_HANDLE_INVAL; 2552b5c29ca7SKalderon, Michal } 2553b5c29ca7SKalderon, Michal 2554d1abfd0bSMichal Kalderon if (iwarp_info->ll2_ooo_handle != QED_IWARP_HANDLE_INVAL) { 2555d1abfd0bSMichal Kalderon rc = qed_ll2_terminate_connection(p_hwfn, 2556d1abfd0bSMichal Kalderon iwarp_info->ll2_ooo_handle); 2557d1abfd0bSMichal Kalderon if (rc) 2558d1abfd0bSMichal Kalderon DP_INFO(p_hwfn, "Failed to terminate ooo connection\n"); 2559d1abfd0bSMichal Kalderon 2560d1abfd0bSMichal Kalderon qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_ooo_handle); 2561d1abfd0bSMichal Kalderon iwarp_info->ll2_ooo_handle = QED_IWARP_HANDLE_INVAL; 2562d1abfd0bSMichal Kalderon } 2563d1abfd0bSMichal Kalderon 2564ae3488ffSMichal Kalderon if (iwarp_info->ll2_mpa_handle != QED_IWARP_HANDLE_INVAL) { 2565ae3488ffSMichal Kalderon rc = qed_ll2_terminate_connection(p_hwfn, 2566ae3488ffSMichal Kalderon iwarp_info->ll2_mpa_handle); 2567ae3488ffSMichal Kalderon if (rc) 2568ae3488ffSMichal Kalderon DP_INFO(p_hwfn, "Failed to terminate mpa connection\n"); 2569ae3488ffSMichal Kalderon 2570ae3488ffSMichal Kalderon qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_mpa_handle); 2571ae3488ffSMichal Kalderon iwarp_info->ll2_mpa_handle = QED_IWARP_HANDLE_INVAL; 2572ae3488ffSMichal Kalderon } 2573ae3488ffSMichal Kalderon 257479284adeSMichal Kalderon qed_llh_remove_mac_filter(p_hwfn->cdev, 0, 257579284adeSMichal Kalderon p_hwfn->p_rdma_info->iwarp.mac_addr); 257679284adeSMichal Kalderon 2577b5c29ca7SKalderon, Michal return rc; 2578b5c29ca7SKalderon, Michal } 2579b5c29ca7SKalderon, Michal 2580b5c29ca7SKalderon, Michal static int 2581b5c29ca7SKalderon, Michal qed_iwarp_ll2_alloc_buffers(struct qed_hwfn *p_hwfn, 2582b5c29ca7SKalderon, Michal int num_rx_bufs, int buff_size, u8 ll2_handle) 2583b5c29ca7SKalderon, Michal { 2584b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff *buffer; 2585b5c29ca7SKalderon, Michal int rc = 0; 2586b5c29ca7SKalderon, Michal int i; 2587b5c29ca7SKalderon, Michal 2588b5c29ca7SKalderon, Michal for (i = 0; i < num_rx_bufs; i++) { 2589b5c29ca7SKalderon, Michal buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); 2590b5c29ca7SKalderon, Michal if (!buffer) { 2591b5c29ca7SKalderon, Michal rc = -ENOMEM; 2592b5c29ca7SKalderon, Michal break; 2593b5c29ca7SKalderon, Michal } 2594b5c29ca7SKalderon, Michal 2595b5c29ca7SKalderon, Michal buffer->data = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 2596b5c29ca7SKalderon, Michal buff_size, 2597b5c29ca7SKalderon, Michal &buffer->data_phys_addr, 2598b5c29ca7SKalderon, Michal GFP_KERNEL); 2599b5c29ca7SKalderon, Michal if (!buffer->data) { 2600b5c29ca7SKalderon, Michal kfree(buffer); 2601b5c29ca7SKalderon, Michal rc = -ENOMEM; 2602b5c29ca7SKalderon, Michal break; 2603b5c29ca7SKalderon, Michal } 2604b5c29ca7SKalderon, Michal 2605b5c29ca7SKalderon, Michal buffer->buff_size = buff_size; 2606b5c29ca7SKalderon, Michal rc = qed_iwarp_ll2_post_rx(p_hwfn, buffer, ll2_handle); 2607b5c29ca7SKalderon, Michal if (rc) 2608b5c29ca7SKalderon, Michal /* buffers will be deallocated by qed_ll2 */ 2609b5c29ca7SKalderon, Michal break; 2610b5c29ca7SKalderon, Michal } 2611b5c29ca7SKalderon, Michal return rc; 2612b5c29ca7SKalderon, Michal } 2613b5c29ca7SKalderon, Michal 2614b5c29ca7SKalderon, Michal #define QED_IWARP_MAX_BUF_SIZE(mtu) \ 2615b5c29ca7SKalderon, Michal ALIGN((mtu) + ETH_HLEN + 2 * VLAN_HLEN + 2 + ETH_CACHE_LINE_SIZE, \ 2616b5c29ca7SKalderon, Michal ETH_CACHE_LINE_SIZE) 2617b5c29ca7SKalderon, Michal 2618b5c29ca7SKalderon, Michal static int 2619b5c29ca7SKalderon, Michal qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn, 2620fbce23a8SMichal Kalderon struct qed_rdma_start_in_params *params, 2621fbce23a8SMichal Kalderon u32 rcv_wnd_size) 2622b5c29ca7SKalderon, Michal { 2623b5c29ca7SKalderon, Michal struct qed_iwarp_info *iwarp_info; 2624b5c29ca7SKalderon, Michal struct qed_ll2_acquire_data data; 2625b5c29ca7SKalderon, Michal struct qed_ll2_cbs cbs; 26269addc927SMichal Kalderon u32 buff_size; 2627d1abfd0bSMichal Kalderon u16 n_ooo_bufs; 2628b5c29ca7SKalderon, Michal int rc = 0; 2629fcb39f6cSMichal Kalderon int i; 2630b5c29ca7SKalderon, Michal 2631b5c29ca7SKalderon, Michal iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2632b5c29ca7SKalderon, Michal iwarp_info->ll2_syn_handle = QED_IWARP_HANDLE_INVAL; 2633d1abfd0bSMichal Kalderon iwarp_info->ll2_ooo_handle = QED_IWARP_HANDLE_INVAL; 2634ae3488ffSMichal Kalderon iwarp_info->ll2_mpa_handle = QED_IWARP_HANDLE_INVAL; 2635b5c29ca7SKalderon, Michal 2636b5c29ca7SKalderon, Michal iwarp_info->max_mtu = params->max_mtu; 2637b5c29ca7SKalderon, Michal 2638b5c29ca7SKalderon, Michal ether_addr_copy(p_hwfn->p_rdma_info->iwarp.mac_addr, params->mac_addr); 2639b5c29ca7SKalderon, Michal 264079284adeSMichal Kalderon rc = qed_llh_add_mac_filter(p_hwfn->cdev, 0, params->mac_addr); 2641b5c29ca7SKalderon, Michal if (rc) 2642b5c29ca7SKalderon, Michal return rc; 2643b5c29ca7SKalderon, Michal 2644b5c29ca7SKalderon, Michal /* Start SYN connection */ 2645b5c29ca7SKalderon, Michal cbs.rx_comp_cb = qed_iwarp_ll2_comp_syn_pkt; 2646b5c29ca7SKalderon, Michal cbs.rx_release_cb = qed_iwarp_ll2_rel_rx_pkt; 2647b5c29ca7SKalderon, Michal cbs.tx_comp_cb = qed_iwarp_ll2_comp_tx_pkt; 2648b5c29ca7SKalderon, Michal cbs.tx_release_cb = qed_iwarp_ll2_rel_tx_pkt; 264943cf40d9SMichal Kalderon cbs.slowpath_cb = NULL; 2650b5c29ca7SKalderon, Michal cbs.cookie = p_hwfn; 2651b5c29ca7SKalderon, Michal 2652b5c29ca7SKalderon, Michal memset(&data, 0, sizeof(data)); 2653b5c29ca7SKalderon, Michal data.input.conn_type = QED_LL2_TYPE_IWARP; 2654997af5dfSMichal Kalderon /* SYN will use ctx based queues */ 2655997af5dfSMichal Kalderon data.input.rx_conn_type = QED_LL2_RX_TYPE_CTX; 26569addc927SMichal Kalderon data.input.mtu = params->max_mtu; 2657b5c29ca7SKalderon, Michal data.input.rx_num_desc = QED_IWARP_LL2_SYN_RX_SIZE; 2658b5c29ca7SKalderon, Michal data.input.tx_num_desc = QED_IWARP_LL2_SYN_TX_SIZE; 2659b5c29ca7SKalderon, Michal data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ 2660b5c29ca7SKalderon, Michal data.input.tx_tc = PKT_LB_TC; 2661b5c29ca7SKalderon, Michal data.input.tx_dest = QED_LL2_TX_DEST_LB; 2662b5c29ca7SKalderon, Michal data.p_connection_handle = &iwarp_info->ll2_syn_handle; 2663b5c29ca7SKalderon, Michal data.cbs = &cbs; 2664b5c29ca7SKalderon, Michal 2665b5c29ca7SKalderon, Michal rc = qed_ll2_acquire_connection(p_hwfn, &data); 2666b5c29ca7SKalderon, Michal if (rc) { 2667b5c29ca7SKalderon, Michal DP_NOTICE(p_hwfn, "Failed to acquire LL2 connection\n"); 266879284adeSMichal Kalderon qed_llh_remove_mac_filter(p_hwfn->cdev, 0, params->mac_addr); 2669b5c29ca7SKalderon, Michal return rc; 2670b5c29ca7SKalderon, Michal } 2671b5c29ca7SKalderon, Michal 2672b5c29ca7SKalderon, Michal rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_syn_handle); 2673b5c29ca7SKalderon, Michal if (rc) { 2674b5c29ca7SKalderon, Michal DP_NOTICE(p_hwfn, "Failed to establish LL2 connection\n"); 2675b5c29ca7SKalderon, Michal goto err; 2676b5c29ca7SKalderon, Michal } 2677b5c29ca7SKalderon, Michal 26789addc927SMichal Kalderon buff_size = QED_IWARP_MAX_BUF_SIZE(params->max_mtu); 2679b5c29ca7SKalderon, Michal rc = qed_iwarp_ll2_alloc_buffers(p_hwfn, 2680b5c29ca7SKalderon, Michal QED_IWARP_LL2_SYN_RX_SIZE, 26819addc927SMichal Kalderon buff_size, 2682b5c29ca7SKalderon, Michal iwarp_info->ll2_syn_handle); 2683b5c29ca7SKalderon, Michal if (rc) 2684b5c29ca7SKalderon, Michal goto err; 2685b5c29ca7SKalderon, Michal 2686d1abfd0bSMichal Kalderon /* Start OOO connection */ 2687d1abfd0bSMichal Kalderon data.input.conn_type = QED_LL2_TYPE_OOO; 2688997af5dfSMichal Kalderon /* OOO/unaligned will use legacy ll2 queues (ram based) */ 2689997af5dfSMichal Kalderon data.input.rx_conn_type = QED_LL2_RX_TYPE_LEGACY; 2690d1abfd0bSMichal Kalderon data.input.mtu = params->max_mtu; 2691d1abfd0bSMichal Kalderon 2692fbce23a8SMichal Kalderon n_ooo_bufs = (QED_IWARP_MAX_OOO * rcv_wnd_size) / 2693d1abfd0bSMichal Kalderon iwarp_info->max_mtu; 2694d1abfd0bSMichal Kalderon n_ooo_bufs = min_t(u32, n_ooo_bufs, QED_IWARP_LL2_OOO_MAX_RX_SIZE); 2695d1abfd0bSMichal Kalderon 2696d1abfd0bSMichal Kalderon data.input.rx_num_desc = n_ooo_bufs; 2697d1abfd0bSMichal Kalderon data.input.rx_num_ooo_buffers = n_ooo_bufs; 2698d1abfd0bSMichal Kalderon 2699d1abfd0bSMichal Kalderon data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ 2700d1abfd0bSMichal Kalderon data.input.tx_num_desc = QED_IWARP_LL2_OOO_DEF_TX_SIZE; 2701d1abfd0bSMichal Kalderon data.p_connection_handle = &iwarp_info->ll2_ooo_handle; 2702d1abfd0bSMichal Kalderon 2703d1abfd0bSMichal Kalderon rc = qed_ll2_acquire_connection(p_hwfn, &data); 2704d1abfd0bSMichal Kalderon if (rc) 2705d1abfd0bSMichal Kalderon goto err; 2706d1abfd0bSMichal Kalderon 2707d1abfd0bSMichal Kalderon rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_ooo_handle); 2708d1abfd0bSMichal Kalderon if (rc) 2709d1abfd0bSMichal Kalderon goto err; 2710d1abfd0bSMichal Kalderon 2711ae3488ffSMichal Kalderon /* Start Unaligned MPA connection */ 2712ae3488ffSMichal Kalderon cbs.rx_comp_cb = qed_iwarp_ll2_comp_mpa_pkt; 2713ae3488ffSMichal Kalderon cbs.slowpath_cb = qed_iwarp_ll2_slowpath; 2714ae3488ffSMichal Kalderon 2715ae3488ffSMichal Kalderon memset(&data, 0, sizeof(data)); 2716ae3488ffSMichal Kalderon data.input.conn_type = QED_LL2_TYPE_IWARP; 2717ae3488ffSMichal Kalderon data.input.mtu = params->max_mtu; 2718ae3488ffSMichal Kalderon /* FW requires that once a packet arrives OOO, it must have at 2719ae3488ffSMichal Kalderon * least 2 rx buffers available on the unaligned connection 2720ae3488ffSMichal Kalderon * for handling the case that it is a partial fpdu. 2721ae3488ffSMichal Kalderon */ 2722ae3488ffSMichal Kalderon data.input.rx_num_desc = n_ooo_bufs * 2; 2723ae3488ffSMichal Kalderon data.input.tx_num_desc = data.input.rx_num_desc; 2724ae3488ffSMichal Kalderon data.input.tx_max_bds_per_packet = QED_IWARP_MAX_BDS_PER_FPDU; 2725cb94d52bSMichal Kalderon data.input.tx_tc = PKT_LB_TC; 2726cb94d52bSMichal Kalderon data.input.tx_dest = QED_LL2_TX_DEST_LB; 2727ae3488ffSMichal Kalderon data.p_connection_handle = &iwarp_info->ll2_mpa_handle; 2728ae3488ffSMichal Kalderon data.input.secondary_queue = true; 2729ae3488ffSMichal Kalderon data.cbs = &cbs; 2730ae3488ffSMichal Kalderon 2731ae3488ffSMichal Kalderon rc = qed_ll2_acquire_connection(p_hwfn, &data); 2732ae3488ffSMichal Kalderon if (rc) 2733ae3488ffSMichal Kalderon goto err; 2734ae3488ffSMichal Kalderon 2735ae3488ffSMichal Kalderon rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_mpa_handle); 2736ae3488ffSMichal Kalderon if (rc) 2737ae3488ffSMichal Kalderon goto err; 2738ae3488ffSMichal Kalderon 2739ae3488ffSMichal Kalderon rc = qed_iwarp_ll2_alloc_buffers(p_hwfn, 2740ae3488ffSMichal Kalderon data.input.rx_num_desc, 27419addc927SMichal Kalderon buff_size, 2742ae3488ffSMichal Kalderon iwarp_info->ll2_mpa_handle); 2743ae3488ffSMichal Kalderon if (rc) 2744ae3488ffSMichal Kalderon goto err; 2745469981b1SMichal Kalderon 2746469981b1SMichal Kalderon iwarp_info->partial_fpdus = kcalloc((u16)p_hwfn->p_rdma_info->num_qps, 2747469981b1SMichal Kalderon sizeof(*iwarp_info->partial_fpdus), 2748469981b1SMichal Kalderon GFP_KERNEL); 2749469981b1SMichal Kalderon if (!iwarp_info->partial_fpdus) 2750469981b1SMichal Kalderon goto err; 2751469981b1SMichal Kalderon 2752469981b1SMichal Kalderon iwarp_info->max_num_partial_fpdus = (u16)p_hwfn->p_rdma_info->num_qps; 27531e28eaadSMichal Kalderon 27549addc927SMichal Kalderon iwarp_info->mpa_intermediate_buf = kzalloc(buff_size, GFP_KERNEL); 27551e28eaadSMichal Kalderon if (!iwarp_info->mpa_intermediate_buf) 27561e28eaadSMichal Kalderon goto err; 27571e28eaadSMichal Kalderon 2758fcb39f6cSMichal Kalderon /* The mpa_bufs array serves for pending RX packets received on the 2759fcb39f6cSMichal Kalderon * mpa ll2 that don't have place on the tx ring and require later 2760fcb39f6cSMichal Kalderon * processing. We can't fail on allocation of such a struct therefore 2761fcb39f6cSMichal Kalderon * we allocate enough to take care of all rx packets 2762fcb39f6cSMichal Kalderon */ 2763fcb39f6cSMichal Kalderon iwarp_info->mpa_bufs = kcalloc(data.input.rx_num_desc, 2764fcb39f6cSMichal Kalderon sizeof(*iwarp_info->mpa_bufs), 2765fcb39f6cSMichal Kalderon GFP_KERNEL); 2766fcb39f6cSMichal Kalderon if (!iwarp_info->mpa_bufs) 2767fcb39f6cSMichal Kalderon goto err; 2768fcb39f6cSMichal Kalderon 2769fcb39f6cSMichal Kalderon INIT_LIST_HEAD(&iwarp_info->mpa_buf_pending_list); 2770fcb39f6cSMichal Kalderon INIT_LIST_HEAD(&iwarp_info->mpa_buf_list); 2771fcb39f6cSMichal Kalderon for (i = 0; i < data.input.rx_num_desc; i++) 2772fcb39f6cSMichal Kalderon list_add_tail(&iwarp_info->mpa_bufs[i].list_entry, 2773fcb39f6cSMichal Kalderon &iwarp_info->mpa_buf_list); 2774b5c29ca7SKalderon, Michal return rc; 2775b5c29ca7SKalderon, Michal err: 277679284adeSMichal Kalderon qed_iwarp_ll2_stop(p_hwfn); 2777b5c29ca7SKalderon, Michal 2778b5c29ca7SKalderon, Michal return rc; 2779b5c29ca7SKalderon, Michal } 2780b5c29ca7SKalderon, Michal 2781fbce23a8SMichal Kalderon static struct { 2782fbce23a8SMichal Kalderon u32 two_ports; 2783fbce23a8SMichal Kalderon u32 four_ports; 2784fbce23a8SMichal Kalderon } qed_iwarp_rcv_wnd_size[MAX_CHIP_IDS] = { 2785fbce23a8SMichal Kalderon {QED_IWARP_RCV_WND_SIZE_DEF_BB_2P, QED_IWARP_RCV_WND_SIZE_DEF_BB_4P}, 2786fbce23a8SMichal Kalderon {QED_IWARP_RCV_WND_SIZE_DEF_AH_2P, QED_IWARP_RCV_WND_SIZE_DEF_AH_4P} 2787fbce23a8SMichal Kalderon }; 2788fbce23a8SMichal Kalderon 278979284adeSMichal Kalderon int qed_iwarp_setup(struct qed_hwfn *p_hwfn, 279067b40dccSKalderon, Michal struct qed_rdma_start_in_params *params) 279167b40dccSKalderon, Michal { 2792fbce23a8SMichal Kalderon struct qed_dev *cdev = p_hwfn->cdev; 279367b40dccSKalderon, Michal struct qed_iwarp_info *iwarp_info; 2794fbce23a8SMichal Kalderon enum chip_ids chip_id; 279567b40dccSKalderon, Michal u32 rcv_wnd_size; 279667b40dccSKalderon, Michal 279767b40dccSKalderon, Michal iwarp_info = &p_hwfn->p_rdma_info->iwarp; 279867b40dccSKalderon, Michal 279967b40dccSKalderon, Michal iwarp_info->tcp_flags = QED_IWARP_TS_EN; 2800fbce23a8SMichal Kalderon 2801fbce23a8SMichal Kalderon chip_id = QED_IS_BB(cdev) ? CHIP_BB : CHIP_K2; 2802fbce23a8SMichal Kalderon rcv_wnd_size = (qed_device_num_ports(cdev) == 4) ? 2803fbce23a8SMichal Kalderon qed_iwarp_rcv_wnd_size[chip_id].four_ports : 2804fbce23a8SMichal Kalderon qed_iwarp_rcv_wnd_size[chip_id].two_ports; 280567b40dccSKalderon, Michal 280667b40dccSKalderon, Michal /* value 0 is used for ilog2(QED_IWARP_RCV_WND_SIZE_MIN) */ 280767b40dccSKalderon, Michal iwarp_info->rcv_wnd_scale = ilog2(rcv_wnd_size) - 280867b40dccSKalderon, Michal ilog2(QED_IWARP_RCV_WND_SIZE_MIN); 2809da090917STomer Tayar iwarp_info->rcv_wnd_size = rcv_wnd_size >> iwarp_info->rcv_wnd_scale; 281067b40dccSKalderon, Michal iwarp_info->crc_needed = QED_IWARP_PARAM_CRC_NEEDED; 281167b40dccSKalderon, Michal iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; 281267b40dccSKalderon, Michal 281367b40dccSKalderon, Michal iwarp_info->peer2peer = QED_IWARP_PARAM_P2P; 281467b40dccSKalderon, Michal 2815456a5849SKalderon, Michal iwarp_info->rtr_type = MPA_RTR_TYPE_ZERO_SEND | 2816456a5849SKalderon, Michal MPA_RTR_TYPE_ZERO_WRITE | 2817456a5849SKalderon, Michal MPA_RTR_TYPE_ZERO_READ; 2818456a5849SKalderon, Michal 281967b40dccSKalderon, Michal spin_lock_init(&p_hwfn->p_rdma_info->iwarp.qp_lock); 2820456a5849SKalderon, Michal INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_list); 282165a91a6cSKalderon, Michal INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.listen_list); 282267b40dccSKalderon, Michal 282367b40dccSKalderon, Michal qed_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP, 282467b40dccSKalderon, Michal qed_iwarp_async_event); 2825d1abfd0bSMichal Kalderon qed_ooo_setup(p_hwfn); 282667b40dccSKalderon, Michal 2827fbce23a8SMichal Kalderon return qed_iwarp_ll2_start(p_hwfn, params, rcv_wnd_size); 282867b40dccSKalderon, Michal } 282967b40dccSKalderon, Michal 283079284adeSMichal Kalderon int qed_iwarp_stop(struct qed_hwfn *p_hwfn) 283167b40dccSKalderon, Michal { 283267b40dccSKalderon, Michal int rc; 283367b40dccSKalderon, Michal 2834456a5849SKalderon, Michal qed_iwarp_free_prealloc_ep(p_hwfn); 283567b40dccSKalderon, Michal rc = qed_iwarp_wait_for_all_cids(p_hwfn); 283667b40dccSKalderon, Michal if (rc) 283767b40dccSKalderon, Michal return rc; 283867b40dccSKalderon, Michal 283967b40dccSKalderon, Michal qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_IWARP); 284067b40dccSKalderon, Michal 284179284adeSMichal Kalderon return qed_iwarp_ll2_stop(p_hwfn); 284267b40dccSKalderon, Michal } 284367b40dccSKalderon, Michal 2844bf774d14SYueHaibing static void qed_iwarp_qp_in_error(struct qed_hwfn *p_hwfn, 2845bf774d14SYueHaibing struct qed_iwarp_ep *ep, 2846bf774d14SYueHaibing u8 fw_return_code) 2847fc4c6065SKalderon, Michal { 2848fc4c6065SKalderon, Michal struct qed_iwarp_cm_event_params params; 2849fc4c6065SKalderon, Michal 2850fc4c6065SKalderon, Michal qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_ERROR, true); 2851fc4c6065SKalderon, Michal 2852fc4c6065SKalderon, Michal params.event = QED_IWARP_EVENT_CLOSE; 2853fc4c6065SKalderon, Michal params.ep_context = ep; 2854fc4c6065SKalderon, Michal params.cm_info = &ep->cm_info; 2855fc4c6065SKalderon, Michal params.status = (fw_return_code == IWARP_QP_IN_ERROR_GOOD_CLOSE) ? 2856fc4c6065SKalderon, Michal 0 : -ECONNRESET; 2857fc4c6065SKalderon, Michal 28586117561eSMichal Kalderon /* paired with READ_ONCE in destroy_qp */ 28596117561eSMichal Kalderon smp_store_release(&ep->state, QED_IWARP_EP_CLOSED); 28606117561eSMichal Kalderon 2861fc4c6065SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 2862fc4c6065SKalderon, Michal list_del(&ep->list_entry); 2863fc4c6065SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 2864fc4c6065SKalderon, Michal 2865fc4c6065SKalderon, Michal ep->event_cb(ep->cb_context, ¶ms); 2866fc4c6065SKalderon, Michal } 2867fc4c6065SKalderon, Michal 2868bf774d14SYueHaibing static void qed_iwarp_exception_received(struct qed_hwfn *p_hwfn, 2869bf774d14SYueHaibing struct qed_iwarp_ep *ep, 2870bf774d14SYueHaibing int fw_ret_code) 2871fc4c6065SKalderon, Michal { 2872fc4c6065SKalderon, Michal struct qed_iwarp_cm_event_params params; 2873fc4c6065SKalderon, Michal bool event_cb = false; 2874fc4c6065SKalderon, Michal 2875fc4c6065SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x) fw_ret_code=%d\n", 2876fc4c6065SKalderon, Michal ep->cid, fw_ret_code); 2877fc4c6065SKalderon, Michal 2878fc4c6065SKalderon, Michal switch (fw_ret_code) { 2879fc4c6065SKalderon, Michal case IWARP_EXCEPTION_DETECTED_LLP_CLOSED: 2880fc4c6065SKalderon, Michal params.status = 0; 2881fc4c6065SKalderon, Michal params.event = QED_IWARP_EVENT_DISCONNECT; 2882fc4c6065SKalderon, Michal event_cb = true; 2883fc4c6065SKalderon, Michal break; 2884fc4c6065SKalderon, Michal case IWARP_EXCEPTION_DETECTED_LLP_RESET: 2885fc4c6065SKalderon, Michal params.status = -ECONNRESET; 2886fc4c6065SKalderon, Michal params.event = QED_IWARP_EVENT_DISCONNECT; 2887fc4c6065SKalderon, Michal event_cb = true; 2888fc4c6065SKalderon, Michal break; 28899816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_RQ_EMPTY: 28909816b614SKalderon, Michal params.event = QED_IWARP_EVENT_RQ_EMPTY; 28919816b614SKalderon, Michal event_cb = true; 28929816b614SKalderon, Michal break; 28939816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_IRQ_FULL: 28949816b614SKalderon, Michal params.event = QED_IWARP_EVENT_IRQ_FULL; 28959816b614SKalderon, Michal event_cb = true; 28969816b614SKalderon, Michal break; 28979816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_LLP_TIMEOUT: 28989816b614SKalderon, Michal params.event = QED_IWARP_EVENT_LLP_TIMEOUT; 28999816b614SKalderon, Michal event_cb = true; 29009816b614SKalderon, Michal break; 29019816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_REMOTE_PROTECTION_ERROR: 29029816b614SKalderon, Michal params.event = QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR; 29039816b614SKalderon, Michal event_cb = true; 29049816b614SKalderon, Michal break; 29059816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_CQ_OVERFLOW: 29069816b614SKalderon, Michal params.event = QED_IWARP_EVENT_CQ_OVERFLOW; 29079816b614SKalderon, Michal event_cb = true; 29089816b614SKalderon, Michal break; 29099816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_LOCAL_CATASTROPHIC: 29109816b614SKalderon, Michal params.event = QED_IWARP_EVENT_QP_CATASTROPHIC; 29119816b614SKalderon, Michal event_cb = true; 29129816b614SKalderon, Michal break; 29139816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_LOCAL_ACCESS_ERROR: 29149816b614SKalderon, Michal params.event = QED_IWARP_EVENT_LOCAL_ACCESS_ERROR; 29159816b614SKalderon, Michal event_cb = true; 29169816b614SKalderon, Michal break; 29179816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_REMOTE_OPERATION_ERROR: 29189816b614SKalderon, Michal params.event = QED_IWARP_EVENT_REMOTE_OPERATION_ERROR; 29199816b614SKalderon, Michal event_cb = true; 29209816b614SKalderon, Michal break; 29219816b614SKalderon, Michal case IWARP_EXCEPTION_DETECTED_TERMINATE_RECEIVED: 29229816b614SKalderon, Michal params.event = QED_IWARP_EVENT_TERMINATE_RECEIVED; 29239816b614SKalderon, Michal event_cb = true; 29249816b614SKalderon, Michal break; 2925fc4c6065SKalderon, Michal default: 2926fc4c6065SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 2927fc4c6065SKalderon, Michal "Unhandled exception received...fw_ret_code=%d\n", 2928fc4c6065SKalderon, Michal fw_ret_code); 2929fc4c6065SKalderon, Michal break; 2930fc4c6065SKalderon, Michal } 2931fc4c6065SKalderon, Michal 2932fc4c6065SKalderon, Michal if (event_cb) { 2933fc4c6065SKalderon, Michal params.ep_context = ep; 2934fc4c6065SKalderon, Michal params.cm_info = &ep->cm_info; 2935fc4c6065SKalderon, Michal ep->event_cb(ep->cb_context, ¶ms); 2936fc4c6065SKalderon, Michal } 2937fc4c6065SKalderon, Michal } 2938fc4c6065SKalderon, Michal 29399816b614SKalderon, Michal static void 29409816b614SKalderon, Michal qed_iwarp_tcp_connect_unsuccessful(struct qed_hwfn *p_hwfn, 29419816b614SKalderon, Michal struct qed_iwarp_ep *ep, u8 fw_return_code) 29429816b614SKalderon, Michal { 29439816b614SKalderon, Michal struct qed_iwarp_cm_event_params params; 29449816b614SKalderon, Michal 29459816b614SKalderon, Michal memset(¶ms, 0, sizeof(params)); 29469816b614SKalderon, Michal params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE; 29479816b614SKalderon, Michal params.ep_context = ep; 29489816b614SKalderon, Michal params.cm_info = &ep->cm_info; 29496117561eSMichal Kalderon /* paired with READ_ONCE in destroy_qp */ 29506117561eSMichal Kalderon smp_store_release(&ep->state, QED_IWARP_EP_CLOSED); 29519816b614SKalderon, Michal 29529816b614SKalderon, Michal switch (fw_return_code) { 29539816b614SKalderon, Michal case IWARP_CONN_ERROR_TCP_CONNECT_INVALID_PACKET: 29549816b614SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 29559816b614SKalderon, Michal "%s(0x%x) TCP connect got invalid packet\n", 29569816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); 29579816b614SKalderon, Michal params.status = -ECONNRESET; 29589816b614SKalderon, Michal break; 29599816b614SKalderon, Michal case IWARP_CONN_ERROR_TCP_CONNECTION_RST: 29609816b614SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 29619816b614SKalderon, Michal "%s(0x%x) TCP Connection Reset\n", 29629816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); 29639816b614SKalderon, Michal params.status = -ECONNRESET; 29649816b614SKalderon, Michal break; 29659816b614SKalderon, Michal case IWARP_CONN_ERROR_TCP_CONNECT_TIMEOUT: 29669816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) TCP timeout\n", 29679816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); 29689816b614SKalderon, Michal params.status = -EBUSY; 29699816b614SKalderon, Michal break; 29709816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_NOT_SUPPORTED_VER: 29719816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA not supported VER\n", 29729816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); 29739816b614SKalderon, Michal params.status = -ECONNREFUSED; 29749816b614SKalderon, Michal break; 29759816b614SKalderon, Michal case IWARP_CONN_ERROR_MPA_INVALID_PACKET: 29769816b614SKalderon, Michal DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n", 29779816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); 29789816b614SKalderon, Michal params.status = -ECONNRESET; 29799816b614SKalderon, Michal break; 29809816b614SKalderon, Michal default: 29819816b614SKalderon, Michal DP_ERR(p_hwfn, 29829816b614SKalderon, Michal "%s(0x%x) Unexpected return code tcp connect: %d\n", 29839816b614SKalderon, Michal QED_IWARP_CONNECT_MODE_STRING(ep), 29849816b614SKalderon, Michal ep->tcp_cid, fw_return_code); 29859816b614SKalderon, Michal params.status = -ECONNRESET; 29869816b614SKalderon, Michal break; 29879816b614SKalderon, Michal } 29889816b614SKalderon, Michal 29899816b614SKalderon, Michal if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 29909816b614SKalderon, Michal ep->tcp_cid = QED_IWARP_INVALID_TCP_CID; 29919816b614SKalderon, Michal qed_iwarp_return_ep(p_hwfn, ep); 29929816b614SKalderon, Michal } else { 29939816b614SKalderon, Michal ep->event_cb(ep->cb_context, ¶ms); 29949816b614SKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 29959816b614SKalderon, Michal list_del(&ep->list_entry); 29969816b614SKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 29979816b614SKalderon, Michal } 29989816b614SKalderon, Michal } 29999816b614SKalderon, Michal 3000bf774d14SYueHaibing static void 3001456a5849SKalderon, Michal qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn, 3002456a5849SKalderon, Michal struct qed_iwarp_ep *ep, u8 fw_return_code) 3003456a5849SKalderon, Michal { 30044b0fdd7cSKalderon, Michal u8 ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle; 30054b0fdd7cSKalderon, Michal 30064b0fdd7cSKalderon, Michal if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 3007456a5849SKalderon, Michal /* Done with the SYN packet, post back to ll2 rx */ 30084b0fdd7cSKalderon, Michal qed_iwarp_ll2_post_rx(p_hwfn, ep->syn, ll2_syn_handle); 30094b0fdd7cSKalderon, Michal 3010456a5849SKalderon, Michal ep->syn = NULL; 3011456a5849SKalderon, Michal 3012456a5849SKalderon, Michal /* If connect failed - upper layer doesn't know about it */ 30139816b614SKalderon, Michal if (fw_return_code == RDMA_RETURN_OK) 3014456a5849SKalderon, Michal qed_iwarp_mpa_received(p_hwfn, ep); 30159816b614SKalderon, Michal else 30169816b614SKalderon, Michal qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, 30179816b614SKalderon, Michal fw_return_code); 30184b0fdd7cSKalderon, Michal } else { 30199816b614SKalderon, Michal if (fw_return_code == RDMA_RETURN_OK) 30204b0fdd7cSKalderon, Michal qed_iwarp_mpa_offload(p_hwfn, ep); 30219816b614SKalderon, Michal else 30229816b614SKalderon, Michal qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, 30239816b614SKalderon, Michal fw_return_code); 30244b0fdd7cSKalderon, Michal } 3025456a5849SKalderon, Michal } 3026456a5849SKalderon, Michal 3027456a5849SKalderon, Michal static inline bool 3028456a5849SKalderon, Michal qed_iwarp_check_ep_ok(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) 3029456a5849SKalderon, Michal { 3030456a5849SKalderon, Michal if (!ep || (ep->sig != QED_EP_SIG)) { 3031456a5849SKalderon, Michal DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep); 3032456a5849SKalderon, Michal return false; 3033456a5849SKalderon, Michal } 3034456a5849SKalderon, Michal 3035456a5849SKalderon, Michal return true; 3036456a5849SKalderon, Michal } 3037456a5849SKalderon, Michal 303867b40dccSKalderon, Michal static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn, 303967b40dccSKalderon, Michal u8 fw_event_code, u16 echo, 304067b40dccSKalderon, Michal union event_ring_data *data, 304167b40dccSKalderon, Michal u8 fw_return_code) 304267b40dccSKalderon, Michal { 304339dbc646SYuval Bason struct qed_rdma_events events = p_hwfn->p_rdma_info->events; 3044456a5849SKalderon, Michal struct regpair *fw_handle = &data->rdma_data.async_handle; 3045456a5849SKalderon, Michal struct qed_iwarp_ep *ep = NULL; 304639dbc646SYuval Bason u16 srq_offset; 304739dbc646SYuval Bason u16 srq_id; 3048456a5849SKalderon, Michal u16 cid; 3049456a5849SKalderon, Michal 3050456a5849SKalderon, Michal ep = (struct qed_iwarp_ep *)(uintptr_t)HILO_64(fw_handle->hi, 3051456a5849SKalderon, Michal fw_handle->lo); 3052456a5849SKalderon, Michal 3053456a5849SKalderon, Michal switch (fw_event_code) { 3054456a5849SKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE: 3055456a5849SKalderon, Michal /* Async completion after TCP 3-way handshake */ 3056456a5849SKalderon, Michal if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) 3057456a5849SKalderon, Michal return -EINVAL; 3058456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, 3059456a5849SKalderon, Michal QED_MSG_RDMA, 3060456a5849SKalderon, Michal "EP(0x%x) IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE fw_ret_code=%d\n", 3061456a5849SKalderon, Michal ep->tcp_cid, fw_return_code); 3062456a5849SKalderon, Michal qed_iwarp_connect_complete(p_hwfn, ep, fw_return_code); 3063456a5849SKalderon, Michal break; 3064fc4c6065SKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED: 3065fc4c6065SKalderon, Michal if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) 3066fc4c6065SKalderon, Michal return -EINVAL; 3067fc4c6065SKalderon, Michal DP_VERBOSE(p_hwfn, 3068fc4c6065SKalderon, Michal QED_MSG_RDMA, 3069fc4c6065SKalderon, Michal "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED fw_ret_code=%d\n", 3070fc4c6065SKalderon, Michal ep->cid, fw_return_code); 3071fc4c6065SKalderon, Michal qed_iwarp_exception_received(p_hwfn, ep, fw_return_code); 3072fc4c6065SKalderon, Michal break; 3073fc4c6065SKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE: 3074fc4c6065SKalderon, Michal /* Async completion for Close Connection ramrod */ 3075fc4c6065SKalderon, Michal if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) 3076fc4c6065SKalderon, Michal return -EINVAL; 3077fc4c6065SKalderon, Michal DP_VERBOSE(p_hwfn, 3078fc4c6065SKalderon, Michal QED_MSG_RDMA, 3079fc4c6065SKalderon, Michal "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE fw_ret_code=%d\n", 3080fc4c6065SKalderon, Michal ep->cid, fw_return_code); 3081fc4c6065SKalderon, Michal qed_iwarp_qp_in_error(p_hwfn, ep, fw_return_code); 3082fc4c6065SKalderon, Michal break; 30834b0fdd7cSKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_ENHANCED_MPA_REPLY_ARRIVED: 3084fc4c6065SKalderon, Michal /* Async event for active side only */ 30854b0fdd7cSKalderon, Michal if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) 30864b0fdd7cSKalderon, Michal return -EINVAL; 30874b0fdd7cSKalderon, Michal DP_VERBOSE(p_hwfn, 30884b0fdd7cSKalderon, Michal QED_MSG_RDMA, 30894b0fdd7cSKalderon, Michal "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_MPA_REPLY_ARRIVED fw_ret_code=%d\n", 30904b0fdd7cSKalderon, Michal ep->cid, fw_return_code); 30914b0fdd7cSKalderon, Michal qed_iwarp_mpa_reply_arrived(p_hwfn, ep); 30924b0fdd7cSKalderon, Michal break; 3093456a5849SKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE: 3094456a5849SKalderon, Michal if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) 3095456a5849SKalderon, Michal return -EINVAL; 3096456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, 3097456a5849SKalderon, Michal QED_MSG_RDMA, 3098456a5849SKalderon, Michal "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE fw_ret_code=%d\n", 3099456a5849SKalderon, Michal ep->cid, fw_return_code); 3100456a5849SKalderon, Michal qed_iwarp_mpa_complete(p_hwfn, ep, fw_return_code); 3101456a5849SKalderon, Michal break; 3102456a5849SKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_CID_CLEANED: 3103456a5849SKalderon, Michal cid = (u16)le32_to_cpu(fw_handle->lo); 3104456a5849SKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 3105456a5849SKalderon, Michal "(0x%x)IWARP_EVENT_TYPE_ASYNC_CID_CLEANED\n", cid); 3106456a5849SKalderon, Michal qed_iwarp_cid_cleaned(p_hwfn, cid); 3107456a5849SKalderon, Michal 3108456a5849SKalderon, Michal break; 310939dbc646SYuval Bason case IWARP_EVENT_TYPE_ASYNC_SRQ_EMPTY: 311039dbc646SYuval Bason DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_SRQ_EMPTY\n"); 311139dbc646SYuval Bason srq_offset = p_hwfn->p_rdma_info->srq_id_offset; 311239dbc646SYuval Bason /* FW assigns value that is no greater than u16 */ 311339dbc646SYuval Bason srq_id = ((u16)le32_to_cpu(fw_handle->lo)) - srq_offset; 311439dbc646SYuval Bason events.affiliated_event(events.context, 311539dbc646SYuval Bason QED_IWARP_EVENT_SRQ_EMPTY, 311639dbc646SYuval Bason &srq_id); 311739dbc646SYuval Bason break; 311839dbc646SYuval Bason case IWARP_EVENT_TYPE_ASYNC_SRQ_LIMIT: 311939dbc646SYuval Bason DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_SRQ_LIMIT\n"); 312039dbc646SYuval Bason srq_offset = p_hwfn->p_rdma_info->srq_id_offset; 312139dbc646SYuval Bason /* FW assigns value that is no greater than u16 */ 312239dbc646SYuval Bason srq_id = ((u16)le32_to_cpu(fw_handle->lo)) - srq_offset; 312339dbc646SYuval Bason events.affiliated_event(events.context, 312439dbc646SYuval Bason QED_IWARP_EVENT_SRQ_LIMIT, 312539dbc646SYuval Bason &srq_id); 312639dbc646SYuval Bason break; 31279816b614SKalderon, Michal case IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW: 31289816b614SKalderon, Michal DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW\n"); 31299816b614SKalderon, Michal 31309816b614SKalderon, Michal p_hwfn->p_rdma_info->events.affiliated_event( 31319816b614SKalderon, Michal p_hwfn->p_rdma_info->events.context, 31329816b614SKalderon, Michal QED_IWARP_EVENT_CQ_OVERFLOW, 31339816b614SKalderon, Michal (void *)fw_handle); 31349816b614SKalderon, Michal break; 31359816b614SKalderon, Michal default: 31369816b614SKalderon, Michal DP_ERR(p_hwfn, "Received unexpected async iwarp event %d\n", 31379816b614SKalderon, Michal fw_event_code); 31389816b614SKalderon, Michal return -EINVAL; 3139456a5849SKalderon, Michal } 314067b40dccSKalderon, Michal return 0; 314167b40dccSKalderon, Michal } 314267b40dccSKalderon, Michal 314365a91a6cSKalderon, Michal int 314465a91a6cSKalderon, Michal qed_iwarp_create_listen(void *rdma_cxt, 314565a91a6cSKalderon, Michal struct qed_iwarp_listen_in *iparams, 314665a91a6cSKalderon, Michal struct qed_iwarp_listen_out *oparams) 314765a91a6cSKalderon, Michal { 314865a91a6cSKalderon, Michal struct qed_hwfn *p_hwfn = rdma_cxt; 314965a91a6cSKalderon, Michal struct qed_iwarp_listener *listener; 315065a91a6cSKalderon, Michal 315165a91a6cSKalderon, Michal listener = kzalloc(sizeof(*listener), GFP_KERNEL); 315265a91a6cSKalderon, Michal if (!listener) 315365a91a6cSKalderon, Michal return -ENOMEM; 315465a91a6cSKalderon, Michal 315565a91a6cSKalderon, Michal listener->ip_version = iparams->ip_version; 315665a91a6cSKalderon, Michal memcpy(listener->ip_addr, iparams->ip_addr, sizeof(listener->ip_addr)); 315765a91a6cSKalderon, Michal listener->port = iparams->port; 315865a91a6cSKalderon, Michal listener->vlan = iparams->vlan; 315965a91a6cSKalderon, Michal 316065a91a6cSKalderon, Michal listener->event_cb = iparams->event_cb; 316165a91a6cSKalderon, Michal listener->cb_context = iparams->cb_context; 316265a91a6cSKalderon, Michal listener->max_backlog = iparams->max_backlog; 316365a91a6cSKalderon, Michal oparams->handle = listener; 316465a91a6cSKalderon, Michal 316565a91a6cSKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 316665a91a6cSKalderon, Michal list_add_tail(&listener->list_entry, 316765a91a6cSKalderon, Michal &p_hwfn->p_rdma_info->iwarp.listen_list); 316865a91a6cSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 316965a91a6cSKalderon, Michal 317065a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, 317165a91a6cSKalderon, Michal QED_MSG_RDMA, 317265a91a6cSKalderon, Michal "callback=%p handle=%p ip=%x:%x:%x:%x port=0x%x vlan=0x%x\n", 317365a91a6cSKalderon, Michal listener->event_cb, 317465a91a6cSKalderon, Michal listener, 317565a91a6cSKalderon, Michal listener->ip_addr[0], 317665a91a6cSKalderon, Michal listener->ip_addr[1], 317765a91a6cSKalderon, Michal listener->ip_addr[2], 317865a91a6cSKalderon, Michal listener->ip_addr[3], listener->port, listener->vlan); 317965a91a6cSKalderon, Michal 318065a91a6cSKalderon, Michal return 0; 318165a91a6cSKalderon, Michal } 318265a91a6cSKalderon, Michal 318365a91a6cSKalderon, Michal int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle) 318465a91a6cSKalderon, Michal { 318565a91a6cSKalderon, Michal struct qed_iwarp_listener *listener = handle; 318665a91a6cSKalderon, Michal struct qed_hwfn *p_hwfn = rdma_cxt; 318765a91a6cSKalderon, Michal 318865a91a6cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "handle=%p\n", handle); 318965a91a6cSKalderon, Michal 319065a91a6cSKalderon, Michal spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 319165a91a6cSKalderon, Michal list_del(&listener->list_entry); 319265a91a6cSKalderon, Michal spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); 319365a91a6cSKalderon, Michal 319465a91a6cSKalderon, Michal kfree(listener); 319565a91a6cSKalderon, Michal 319665a91a6cSKalderon, Michal return 0; 319765a91a6cSKalderon, Michal } 319865a91a6cSKalderon, Michal 31994b0fdd7cSKalderon, Michal int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams) 32004b0fdd7cSKalderon, Michal { 32014b0fdd7cSKalderon, Michal struct qed_hwfn *p_hwfn = rdma_cxt; 32024b0fdd7cSKalderon, Michal struct qed_sp_init_data init_data; 32034b0fdd7cSKalderon, Michal struct qed_spq_entry *p_ent; 32044b0fdd7cSKalderon, Michal struct qed_iwarp_ep *ep; 32054b0fdd7cSKalderon, Michal struct qed_rdma_qp *qp; 32064b0fdd7cSKalderon, Michal int rc; 32074b0fdd7cSKalderon, Michal 32084b0fdd7cSKalderon, Michal ep = iparams->ep_context; 32094b0fdd7cSKalderon, Michal if (!ep) { 32104b0fdd7cSKalderon, Michal DP_ERR(p_hwfn, "Ep Context receive in send_rtr is NULL\n"); 32114b0fdd7cSKalderon, Michal return -EINVAL; 32124b0fdd7cSKalderon, Michal } 32134b0fdd7cSKalderon, Michal 32144b0fdd7cSKalderon, Michal qp = ep->qp; 32154b0fdd7cSKalderon, Michal 32164b0fdd7cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", 32174b0fdd7cSKalderon, Michal qp->icid, ep->tcp_cid); 32184b0fdd7cSKalderon, Michal 32194b0fdd7cSKalderon, Michal memset(&init_data, 0, sizeof(init_data)); 32204b0fdd7cSKalderon, Michal init_data.cid = qp->icid; 32214b0fdd7cSKalderon, Michal init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 32224b0fdd7cSKalderon, Michal init_data.comp_mode = QED_SPQ_MODE_CB; 32234b0fdd7cSKalderon, Michal 32244b0fdd7cSKalderon, Michal rc = qed_sp_init_request(p_hwfn, &p_ent, 32254b0fdd7cSKalderon, Michal IWARP_RAMROD_CMD_ID_MPA_OFFLOAD_SEND_RTR, 32264b0fdd7cSKalderon, Michal PROTOCOLID_IWARP, &init_data); 32274b0fdd7cSKalderon, Michal 32284b0fdd7cSKalderon, Michal if (rc) 32294b0fdd7cSKalderon, Michal return rc; 32304b0fdd7cSKalderon, Michal 32314b0fdd7cSKalderon, Michal rc = qed_spq_post(p_hwfn, p_ent, NULL); 32324b0fdd7cSKalderon, Michal 32334b0fdd7cSKalderon, Michal DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = 0x%x\n", rc); 32344b0fdd7cSKalderon, Michal 32354b0fdd7cSKalderon, Michal return rc; 32364b0fdd7cSKalderon, Michal } 32374b0fdd7cSKalderon, Michal 323867b40dccSKalderon, Michal void 323967b40dccSKalderon, Michal qed_iwarp_query_qp(struct qed_rdma_qp *qp, 324067b40dccSKalderon, Michal struct qed_rdma_query_qp_out_params *out_params) 324167b40dccSKalderon, Michal { 324267b40dccSKalderon, Michal out_params->state = qed_iwarp2roce_state(qp->iwarp_state); 324367b40dccSKalderon, Michal } 3244