| // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) |
| /* QLogic qed NIC Driver |
| * Copyright (c) 2015-2017 QLogic Corporation |
| * Copyright (c) 2019-2020 Marvell International Ltd. |
| */ |
| |
| #include <linux/if_ether.h> |
| #include <linux/if_vlan.h> |
| #include <linux/ip.h> |
| #include <linux/ipv6.h> |
| #include <linux/spinlock.h> |
| #include <linux/tcp.h> |
| #include "qed_cxt.h" |
| #include "qed_hw.h" |
| #include "qed_ll2.h" |
| #include "qed_rdma.h" |
| #include "qed_reg_addr.h" |
| #include "qed_sp.h" |
| #include "qed_ooo.h" |
| |
| #define QED_IWARP_ORD_DEFAULT 32 |
| #define QED_IWARP_IRD_DEFAULT 32 |
| #define QED_IWARP_MAX_FW_MSS 4120 |
| |
| #define QED_EP_SIG 0xecabcdef |
| |
| struct mpa_v2_hdr { |
| __be16 ird; |
| __be16 ord; |
| }; |
| |
| #define MPA_V2_PEER2PEER_MODEL 0x8000 |
| #define MPA_V2_SEND_RTR 0x4000 /* on ird */ |
| #define MPA_V2_READ_RTR 0x4000 /* on ord */ |
| #define MPA_V2_WRITE_RTR 0x8000 |
| #define MPA_V2_IRD_ORD_MASK 0x3FFF |
| |
| #define MPA_REV2(_mpa_rev) ((_mpa_rev) == MPA_NEGOTIATION_TYPE_ENHANCED) |
| |
| #define QED_IWARP_INVALID_TCP_CID 0xffffffff |
| |
| #define QED_IWARP_RCV_WND_SIZE_DEF_BB_2P (200 * 1024) |
| #define QED_IWARP_RCV_WND_SIZE_DEF_BB_4P (100 * 1024) |
| #define QED_IWARP_RCV_WND_SIZE_DEF_AH_2P (150 * 1024) |
| #define QED_IWARP_RCV_WND_SIZE_DEF_AH_4P (90 * 1024) |
| |
| #define QED_IWARP_RCV_WND_SIZE_MIN (0xffff) |
| #define TIMESTAMP_HEADER_SIZE (12) |
| #define QED_IWARP_MAX_FIN_RT_DEFAULT (2) |
| |
| #define QED_IWARP_TS_EN BIT(0) |
| #define QED_IWARP_DA_EN BIT(1) |
| #define QED_IWARP_PARAM_CRC_NEEDED (1) |
| #define QED_IWARP_PARAM_P2P (1) |
| |
| #define QED_IWARP_DEF_MAX_RT_TIME (0) |
| #define QED_IWARP_DEF_CWND_FACTOR (4) |
| #define QED_IWARP_DEF_KA_MAX_PROBE_CNT (5) |
| #define QED_IWARP_DEF_KA_TIMEOUT (1200000) /* 20 min */ |
| #define QED_IWARP_DEF_KA_INTERVAL (1000) /* 1 sec */ |
| |
| static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code, |
| __le16 echo, union event_ring_data *data, |
| u8 fw_return_code); |
| |
| /* Override devinfo with iWARP specific values */ |
| void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn) |
| { |
| struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; |
| |
| dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE; |
| dev->max_qp = min_t(u32, |
| IWARP_MAX_QPS, |
| p_hwfn->p_rdma_info->num_qps) - |
| QED_IWARP_PREALLOC_CNT; |
| |
| dev->max_cq = dev->max_qp; |
| |
| dev->max_qp_resp_rd_atomic_resc = QED_IWARP_IRD_DEFAULT; |
| dev->max_qp_req_rd_atomic_resc = QED_IWARP_ORD_DEFAULT; |
| } |
| |
| void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) |
| { |
| p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_TCP; |
| qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 1); |
| p_hwfn->b_rdma_enabled_in_prs = true; |
| } |
| |
| /* We have two cid maps, one for tcp which should be used only from passive |
| * syn processing and replacing a pre-allocated ep in the list. The second |
| * for active tcp and for QPs. |
| */ |
| static void qed_iwarp_cid_cleaned(struct qed_hwfn *p_hwfn, u32 cid) |
| { |
| cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->lock); |
| |
| if (cid < QED_IWARP_PREALLOC_CNT) |
| qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, |
| cid); |
| else |
| qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); |
| |
| spin_unlock_bh(&p_hwfn->p_rdma_info->lock); |
| } |
| |
| void |
| qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn, |
| struct iwarp_init_func_ramrod_data *p_ramrod) |
| { |
| p_ramrod->iwarp.ll2_ooo_q_index = |
| RESC_START(p_hwfn, QED_LL2_RAM_QUEUE) + |
| p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle; |
| |
| p_ramrod->tcp.tx_sws_timer = cpu_to_le16(QED_TX_SWS_TIMER_DFLT); |
| p_ramrod->tcp.two_msl_timer = cpu_to_le32(QED_TWO_MSL_TIMER_DFLT); |
| p_ramrod->tcp.max_fin_rt = QED_IWARP_MAX_FIN_RT_DEFAULT; |
| |
| return; |
| } |
| |
| static int qed_iwarp_alloc_cid(struct qed_hwfn *p_hwfn, u32 *cid) |
| { |
| int rc; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->lock); |
| rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->lock); |
| if (rc) { |
| DP_NOTICE(p_hwfn, "Failed in allocating iwarp cid\n"); |
| return rc; |
| } |
| *cid += qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); |
| |
| rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *cid); |
| if (rc) |
| qed_iwarp_cid_cleaned(p_hwfn, *cid); |
| |
| return rc; |
| } |
| |
| static void qed_iwarp_set_tcp_cid(struct qed_hwfn *p_hwfn, u32 cid) |
| { |
| cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->lock); |
| qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->lock); |
| } |
| |
| /* This function allocates a cid for passive tcp (called from syn receive) |
| * the reason it's separate from the regular cid allocation is because it |
| * is assured that these cids already have ilt allocated. They are preallocated |
| * to ensure that we won't need to allocate memory during syn processing |
| */ |
| static int qed_iwarp_alloc_tcp_cid(struct qed_hwfn *p_hwfn, u32 *cid) |
| { |
| int rc; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->lock); |
| |
| rc = qed_rdma_bmap_alloc_id(p_hwfn, |
| &p_hwfn->p_rdma_info->tcp_cid_map, cid); |
| |
| spin_unlock_bh(&p_hwfn->p_rdma_info->lock); |
| |
| if (rc) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "can't allocate iwarp tcp cid max-count=%d\n", |
| p_hwfn->p_rdma_info->tcp_cid_map.max_count); |
| |
| *cid = QED_IWARP_INVALID_TCP_CID; |
| return rc; |
| } |
| |
| *cid += qed_cxt_get_proto_cid_start(p_hwfn, |
| p_hwfn->p_rdma_info->proto); |
| return 0; |
| } |
| |
| int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn, |
| struct qed_rdma_qp *qp, |
| struct qed_rdma_create_qp_out_params *out_params) |
| { |
| struct iwarp_create_qp_ramrod_data *p_ramrod; |
| struct qed_sp_init_data init_data; |
| struct qed_spq_entry *p_ent; |
| u16 physical_queue; |
| u32 cid; |
| int rc; |
| |
| qp->shared_queue = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, |
| IWARP_SHARED_QUEUE_PAGE_SIZE, |
| &qp->shared_queue_phys_addr, |
| GFP_KERNEL); |
| if (!qp->shared_queue) |
| return -ENOMEM; |
| |
| out_params->sq_pbl_virt = (u8 *)qp->shared_queue + |
| IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET; |
| out_params->sq_pbl_phys = qp->shared_queue_phys_addr + |
| IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET; |
| out_params->rq_pbl_virt = (u8 *)qp->shared_queue + |
| IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET; |
| out_params->rq_pbl_phys = qp->shared_queue_phys_addr + |
| IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET; |
| |
| rc = qed_iwarp_alloc_cid(p_hwfn, &cid); |
| if (rc) |
| goto err1; |
| |
| qp->icid = (u16)cid; |
| |
| memset(&init_data, 0, sizeof(init_data)); |
| init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; |
| init_data.cid = qp->icid; |
| init_data.comp_mode = QED_SPQ_MODE_EBLOCK; |
| |
| rc = qed_sp_init_request(p_hwfn, &p_ent, |
| IWARP_RAMROD_CMD_ID_CREATE_QP, |
| PROTOCOLID_IWARP, &init_data); |
| if (rc) |
| goto err2; |
| |
| p_ramrod = &p_ent->ramrod.iwarp_create_qp; |
| |
| SET_FIELD(p_ramrod->flags, |
| IWARP_CREATE_QP_RAMROD_DATA_FMR_AND_RESERVED_EN, |
| qp->fmr_and_reserved_lkey); |
| |
| SET_FIELD(p_ramrod->flags, |
| IWARP_CREATE_QP_RAMROD_DATA_SIGNALED_COMP, qp->signal_all); |
| |
| SET_FIELD(p_ramrod->flags, |
| IWARP_CREATE_QP_RAMROD_DATA_RDMA_RD_EN, |
| qp->incoming_rdma_read_en); |
| |
| SET_FIELD(p_ramrod->flags, |
| IWARP_CREATE_QP_RAMROD_DATA_RDMA_WR_EN, |
| qp->incoming_rdma_write_en); |
| |
| SET_FIELD(p_ramrod->flags, |
| IWARP_CREATE_QP_RAMROD_DATA_ATOMIC_EN, |
| qp->incoming_atomic_en); |
| |
| SET_FIELD(p_ramrod->flags, |
| IWARP_CREATE_QP_RAMROD_DATA_SRQ_FLG, qp->use_srq); |
| |
| p_ramrod->pd = cpu_to_le16(qp->pd); |
| p_ramrod->sq_num_pages = cpu_to_le16(qp->sq_num_pages); |
| p_ramrod->rq_num_pages = cpu_to_le16(qp->rq_num_pages); |
| |
| p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id); |
| p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid); |
| p_ramrod->qp_handle_for_cqe.hi = qp->qp_handle.hi; |
| p_ramrod->qp_handle_for_cqe.lo = qp->qp_handle.lo; |
| |
| p_ramrod->cq_cid_for_sq = |
| cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id); |
| p_ramrod->cq_cid_for_rq = |
| cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->rq_cq_id); |
| |
| p_ramrod->dpi = cpu_to_le16(qp->dpi); |
| |
| physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); |
| p_ramrod->physical_q0 = cpu_to_le16(physical_queue); |
| physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); |
| p_ramrod->physical_q1 = cpu_to_le16(physical_queue); |
| |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| if (rc) |
| goto err2; |
| |
| return rc; |
| |
| err2: |
| qed_iwarp_cid_cleaned(p_hwfn, cid); |
| err1: |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, |
| IWARP_SHARED_QUEUE_PAGE_SIZE, |
| qp->shared_queue, qp->shared_queue_phys_addr); |
| |
| return rc; |
| } |
| |
| static int qed_iwarp_modify_fw(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) |
| { |
| struct iwarp_modify_qp_ramrod_data *p_ramrod; |
| struct qed_sp_init_data init_data; |
| struct qed_spq_entry *p_ent; |
| u16 flags, trans_to_state; |
| int rc; |
| |
| /* Get SPQ entry */ |
| memset(&init_data, 0, sizeof(init_data)); |
| init_data.cid = qp->icid; |
| init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; |
| init_data.comp_mode = QED_SPQ_MODE_EBLOCK; |
| |
| rc = qed_sp_init_request(p_hwfn, &p_ent, |
| IWARP_RAMROD_CMD_ID_MODIFY_QP, |
| p_hwfn->p_rdma_info->proto, &init_data); |
| if (rc) |
| return rc; |
| |
| p_ramrod = &p_ent->ramrod.iwarp_modify_qp; |
| |
| flags = le16_to_cpu(p_ramrod->flags); |
| SET_FIELD(flags, IWARP_MODIFY_QP_RAMROD_DATA_STATE_TRANS_EN, 0x1); |
| p_ramrod->flags = cpu_to_le16(flags); |
| |
| if (qp->iwarp_state == QED_IWARP_QP_STATE_CLOSING) |
| trans_to_state = IWARP_MODIFY_QP_STATE_CLOSING; |
| else |
| trans_to_state = IWARP_MODIFY_QP_STATE_ERROR; |
| |
| p_ramrod->transition_to_state = cpu_to_le16(trans_to_state); |
| |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x)rc=%d\n", qp->icid, rc); |
| |
| return rc; |
| } |
| |
| enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state) |
| { |
| switch (state) { |
| case QED_ROCE_QP_STATE_RESET: |
| case QED_ROCE_QP_STATE_INIT: |
| case QED_ROCE_QP_STATE_RTR: |
| return QED_IWARP_QP_STATE_IDLE; |
| case QED_ROCE_QP_STATE_RTS: |
| return QED_IWARP_QP_STATE_RTS; |
| case QED_ROCE_QP_STATE_SQD: |
| return QED_IWARP_QP_STATE_CLOSING; |
| case QED_ROCE_QP_STATE_ERR: |
| return QED_IWARP_QP_STATE_ERROR; |
| case QED_ROCE_QP_STATE_SQE: |
| return QED_IWARP_QP_STATE_TERMINATE; |
| default: |
| return QED_IWARP_QP_STATE_ERROR; |
| } |
| } |
| |
| static enum qed_roce_qp_state |
| qed_iwarp2roce_state(enum qed_iwarp_qp_state state) |
| { |
| switch (state) { |
| case QED_IWARP_QP_STATE_IDLE: |
| return QED_ROCE_QP_STATE_INIT; |
| case QED_IWARP_QP_STATE_RTS: |
| return QED_ROCE_QP_STATE_RTS; |
| case QED_IWARP_QP_STATE_TERMINATE: |
| return QED_ROCE_QP_STATE_SQE; |
| case QED_IWARP_QP_STATE_CLOSING: |
| return QED_ROCE_QP_STATE_SQD; |
| case QED_IWARP_QP_STATE_ERROR: |
| return QED_ROCE_QP_STATE_ERR; |
| default: |
| return QED_ROCE_QP_STATE_ERR; |
| } |
| } |
| |
| static const char * const iwarp_state_names[] = { |
| "IDLE", |
| "RTS", |
| "TERMINATE", |
| "CLOSING", |
| "ERROR", |
| }; |
| |
| int |
| qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn, |
| struct qed_rdma_qp *qp, |
| enum qed_iwarp_qp_state new_state, bool internal) |
| { |
| enum qed_iwarp_qp_state prev_iw_state; |
| bool modify_fw = false; |
| int rc = 0; |
| |
| /* modify QP can be called from upper-layer or as a result of async |
| * RST/FIN... therefore need to protect |
| */ |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock); |
| prev_iw_state = qp->iwarp_state; |
| |
| if (prev_iw_state == new_state) { |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock); |
| return 0; |
| } |
| |
| switch (prev_iw_state) { |
| case QED_IWARP_QP_STATE_IDLE: |
| switch (new_state) { |
| case QED_IWARP_QP_STATE_RTS: |
| qp->iwarp_state = QED_IWARP_QP_STATE_RTS; |
| break; |
| case QED_IWARP_QP_STATE_ERROR: |
| qp->iwarp_state = QED_IWARP_QP_STATE_ERROR; |
| if (!internal) |
| modify_fw = true; |
| break; |
| default: |
| break; |
| } |
| break; |
| case QED_IWARP_QP_STATE_RTS: |
| switch (new_state) { |
| case QED_IWARP_QP_STATE_CLOSING: |
| if (!internal) |
| modify_fw = true; |
| |
| qp->iwarp_state = QED_IWARP_QP_STATE_CLOSING; |
| break; |
| case QED_IWARP_QP_STATE_ERROR: |
| if (!internal) |
| modify_fw = true; |
| qp->iwarp_state = QED_IWARP_QP_STATE_ERROR; |
| break; |
| default: |
| break; |
| } |
| break; |
| case QED_IWARP_QP_STATE_ERROR: |
| switch (new_state) { |
| case QED_IWARP_QP_STATE_IDLE: |
| |
| qp->iwarp_state = new_state; |
| break; |
| case QED_IWARP_QP_STATE_CLOSING: |
| /* could happen due to race... do nothing.... */ |
| break; |
| default: |
| rc = -EINVAL; |
| } |
| break; |
| case QED_IWARP_QP_STATE_TERMINATE: |
| case QED_IWARP_QP_STATE_CLOSING: |
| qp->iwarp_state = new_state; |
| break; |
| default: |
| break; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) %s --> %s%s\n", |
| qp->icid, |
| iwarp_state_names[prev_iw_state], |
| iwarp_state_names[qp->iwarp_state], |
| internal ? "internal" : ""); |
| |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock); |
| |
| if (modify_fw) |
| rc = qed_iwarp_modify_fw(p_hwfn, qp); |
| |
| return rc; |
| } |
| |
| int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) |
| { |
| struct qed_sp_init_data init_data; |
| struct qed_spq_entry *p_ent; |
| int rc; |
| |
| /* Get SPQ entry */ |
| memset(&init_data, 0, sizeof(init_data)); |
| init_data.cid = qp->icid; |
| init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; |
| init_data.comp_mode = QED_SPQ_MODE_EBLOCK; |
| |
| rc = qed_sp_init_request(p_hwfn, &p_ent, |
| IWARP_RAMROD_CMD_ID_DESTROY_QP, |
| p_hwfn->p_rdma_info->proto, &init_data); |
| if (rc) |
| return rc; |
| |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) rc = %d\n", qp->icid, rc); |
| |
| return rc; |
| } |
| |
| static void qed_iwarp_destroy_ep(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, |
| bool remove_from_active_list) |
| { |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, |
| sizeof(*ep->ep_buffer_virt), |
| ep->ep_buffer_virt, ep->ep_buffer_phys); |
| |
| if (remove_from_active_list) { |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_del(&ep->list_entry); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| } |
| |
| if (ep->qp) |
| ep->qp->ep = NULL; |
| |
| kfree(ep); |
| } |
| |
| int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) |
| { |
| struct qed_iwarp_ep *ep = qp->ep; |
| int wait_count = 0; |
| int rc = 0; |
| |
| if (qp->iwarp_state != QED_IWARP_QP_STATE_ERROR) { |
| rc = qed_iwarp_modify_qp(p_hwfn, qp, |
| QED_IWARP_QP_STATE_ERROR, false); |
| if (rc) |
| return rc; |
| } |
| |
| /* Make sure ep is closed before returning and freeing memory. */ |
| if (ep) { |
| while (READ_ONCE(ep->state) != QED_IWARP_EP_CLOSED && |
| wait_count++ < 200) |
| msleep(100); |
| |
| if (ep->state != QED_IWARP_EP_CLOSED) |
| DP_NOTICE(p_hwfn, "ep state close timeout state=%x\n", |
| ep->state); |
| |
| qed_iwarp_destroy_ep(p_hwfn, ep, false); |
| } |
| |
| rc = qed_iwarp_fw_destroy(p_hwfn, qp); |
| |
| if (qp->shared_queue) |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, |
| IWARP_SHARED_QUEUE_PAGE_SIZE, |
| qp->shared_queue, qp->shared_queue_phys_addr); |
| |
| return rc; |
| } |
| |
| static int |
| qed_iwarp_create_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep **ep_out) |
| { |
| struct qed_iwarp_ep *ep; |
| int rc; |
| |
| ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
| if (!ep) |
| return -ENOMEM; |
| |
| ep->state = QED_IWARP_EP_INIT; |
| |
| ep->ep_buffer_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, |
| sizeof(*ep->ep_buffer_virt), |
| &ep->ep_buffer_phys, |
| GFP_KERNEL); |
| if (!ep->ep_buffer_virt) { |
| rc = -ENOMEM; |
| goto err; |
| } |
| |
| ep->sig = QED_EP_SIG; |
| |
| *ep_out = ep; |
| |
| return 0; |
| |
| err: |
| kfree(ep); |
| return rc; |
| } |
| |
| static void |
| qed_iwarp_print_tcp_ramrod(struct qed_hwfn *p_hwfn, |
| struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod) |
| { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "local_mac=%x %x %x, remote_mac=%x %x %x\n", |
| p_tcp_ramrod->tcp.local_mac_addr_lo, |
| p_tcp_ramrod->tcp.local_mac_addr_mid, |
| p_tcp_ramrod->tcp.local_mac_addr_hi, |
| p_tcp_ramrod->tcp.remote_mac_addr_lo, |
| p_tcp_ramrod->tcp.remote_mac_addr_mid, |
| p_tcp_ramrod->tcp.remote_mac_addr_hi); |
| |
| if (p_tcp_ramrod->tcp.ip_version == TCP_IPV4) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "local_ip=%pI4h:%x, remote_ip=%pI4h:%x, vlan=%x\n", |
| p_tcp_ramrod->tcp.local_ip, |
| p_tcp_ramrod->tcp.local_port, |
| p_tcp_ramrod->tcp.remote_ip, |
| p_tcp_ramrod->tcp.remote_port, |
| p_tcp_ramrod->tcp.vlan_id); |
| } else { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "local_ip=%pI6:%x, remote_ip=%pI6:%x, vlan=%x\n", |
| p_tcp_ramrod->tcp.local_ip, |
| p_tcp_ramrod->tcp.local_port, |
| p_tcp_ramrod->tcp.remote_ip, |
| p_tcp_ramrod->tcp.remote_port, |
| p_tcp_ramrod->tcp.vlan_id); |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "flow_label=%x, ttl=%x, tos_or_tc=%x, mss=%x, rcv_wnd_scale=%x, connect_mode=%x, flags=%x\n", |
| p_tcp_ramrod->tcp.flow_label, |
| p_tcp_ramrod->tcp.ttl, |
| p_tcp_ramrod->tcp.tos_or_tc, |
| p_tcp_ramrod->tcp.mss, |
| p_tcp_ramrod->tcp.rcv_wnd_scale, |
| p_tcp_ramrod->tcp.connect_mode, |
| p_tcp_ramrod->tcp.flags); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "syn_ip_payload_length=%x, lo=%x, hi=%x\n", |
| p_tcp_ramrod->tcp.syn_ip_payload_length, |
| p_tcp_ramrod->tcp.syn_phy_addr_lo, |
| p_tcp_ramrod->tcp.syn_phy_addr_hi); |
| } |
| |
| static int |
| qed_iwarp_tcp_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod; |
| struct tcp_offload_params_opt2 *tcp; |
| struct qed_sp_init_data init_data; |
| struct qed_spq_entry *p_ent; |
| dma_addr_t async_output_phys; |
| dma_addr_t in_pdata_phys; |
| u16 physical_q; |
| u16 flags = 0; |
| u8 tcp_flags; |
| int rc; |
| int i; |
| |
| memset(&init_data, 0, sizeof(init_data)); |
| init_data.cid = ep->tcp_cid; |
| init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; |
| if (ep->connect_mode == TCP_CONNECT_PASSIVE) |
| init_data.comp_mode = QED_SPQ_MODE_CB; |
| else |
| init_data.comp_mode = QED_SPQ_MODE_EBLOCK; |
| |
| rc = qed_sp_init_request(p_hwfn, &p_ent, |
| IWARP_RAMROD_CMD_ID_TCP_OFFLOAD, |
| PROTOCOLID_IWARP, &init_data); |
| if (rc) |
| return rc; |
| |
| p_tcp_ramrod = &p_ent->ramrod.iwarp_tcp_offload; |
| |
| in_pdata_phys = ep->ep_buffer_phys + |
| offsetof(struct qed_iwarp_ep_memory, in_pdata); |
| DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr, |
| in_pdata_phys); |
| |
| p_tcp_ramrod->iwarp.incoming_ulp_buffer.len = |
| cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata)); |
| |
| async_output_phys = ep->ep_buffer_phys + |
| offsetof(struct qed_iwarp_ep_memory, async_output); |
| DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.async_eqe_output_buf, |
| async_output_phys); |
| |
| p_tcp_ramrod->iwarp.handle_for_async.hi = cpu_to_le32(PTR_HI(ep)); |
| p_tcp_ramrod->iwarp.handle_for_async.lo = cpu_to_le32(PTR_LO(ep)); |
| |
| physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); |
| p_tcp_ramrod->iwarp.physical_q0 = cpu_to_le16(physical_q); |
| physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); |
| p_tcp_ramrod->iwarp.physical_q1 = cpu_to_le16(physical_q); |
| p_tcp_ramrod->iwarp.mpa_mode = iwarp_info->mpa_rev; |
| |
| tcp = &p_tcp_ramrod->tcp; |
| qed_set_fw_mac_addr(&tcp->remote_mac_addr_hi, |
| &tcp->remote_mac_addr_mid, |
| &tcp->remote_mac_addr_lo, ep->remote_mac_addr); |
| qed_set_fw_mac_addr(&tcp->local_mac_addr_hi, &tcp->local_mac_addr_mid, |
| &tcp->local_mac_addr_lo, ep->local_mac_addr); |
| |
| tcp->vlan_id = cpu_to_le16(ep->cm_info.vlan); |
| |
| tcp_flags = p_hwfn->p_rdma_info->iwarp.tcp_flags; |
| |
| SET_FIELD(flags, TCP_OFFLOAD_PARAMS_OPT2_TS_EN, |
| !!(tcp_flags & QED_IWARP_TS_EN)); |
| |
| SET_FIELD(flags, TCP_OFFLOAD_PARAMS_OPT2_DA_EN, |
| !!(tcp_flags & QED_IWARP_DA_EN)); |
| |
| tcp->flags = cpu_to_le16(flags); |
| tcp->ip_version = ep->cm_info.ip_version; |
| |
| for (i = 0; i < 4; i++) { |
| tcp->remote_ip[i] = cpu_to_le32(ep->cm_info.remote_ip[i]); |
| tcp->local_ip[i] = cpu_to_le32(ep->cm_info.local_ip[i]); |
| } |
| |
| tcp->remote_port = cpu_to_le16(ep->cm_info.remote_port); |
| tcp->local_port = cpu_to_le16(ep->cm_info.local_port); |
| tcp->mss = cpu_to_le16(ep->mss); |
| tcp->flow_label = 0; |
| tcp->ttl = 0x40; |
| tcp->tos_or_tc = 0; |
| |
| tcp->max_rt_time = QED_IWARP_DEF_MAX_RT_TIME; |
| tcp->cwnd = cpu_to_le32(QED_IWARP_DEF_CWND_FACTOR * ep->mss); |
| tcp->ka_max_probe_cnt = QED_IWARP_DEF_KA_MAX_PROBE_CNT; |
| tcp->ka_timeout = cpu_to_le32(QED_IWARP_DEF_KA_TIMEOUT); |
| tcp->ka_interval = cpu_to_le32(QED_IWARP_DEF_KA_INTERVAL); |
| |
| tcp->rcv_wnd_scale = (u8)p_hwfn->p_rdma_info->iwarp.rcv_wnd_scale; |
| tcp->connect_mode = ep->connect_mode; |
| |
| if (ep->connect_mode == TCP_CONNECT_PASSIVE) { |
| tcp->syn_ip_payload_length = |
| cpu_to_le16(ep->syn_ip_payload_length); |
| tcp->syn_phy_addr_hi = DMA_HI_LE(ep->syn_phy_addr); |
| tcp->syn_phy_addr_lo = DMA_LO_LE(ep->syn_phy_addr); |
| } |
| |
| qed_iwarp_print_tcp_ramrod(p_hwfn, p_tcp_ramrod); |
| |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "EP(0x%x) Offload completed rc=%d\n", ep->tcp_cid, rc); |
| |
| return rc; |
| } |
| |
| static void |
| qed_iwarp_mpa_received(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| struct qed_iwarp_cm_event_params params; |
| struct mpa_v2_hdr *mpa_v2; |
| union async_output *async_data; |
| u16 mpa_ord, mpa_ird; |
| u8 mpa_hdr_size = 0; |
| u16 ulp_data_len; |
| u8 mpa_rev; |
| |
| async_data = &ep->ep_buffer_virt->async_output; |
| |
| mpa_rev = async_data->mpa_request.mpa_handshake_mode; |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "private_data_len=%x handshake_mode=%x private_data=(%x)\n", |
| async_data->mpa_request.ulp_data_len, |
| mpa_rev, *((u32 *)(ep->ep_buffer_virt->in_pdata))); |
| |
| if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { |
| /* Read ord/ird values from private data buffer */ |
| mpa_v2 = (struct mpa_v2_hdr *)ep->ep_buffer_virt->in_pdata; |
| mpa_hdr_size = sizeof(*mpa_v2); |
| |
| mpa_ord = ntohs(mpa_v2->ord); |
| mpa_ird = ntohs(mpa_v2->ird); |
| |
| /* Temprary store in cm_info incoming ord/ird requested, later |
| * replace with negotiated value during accept |
| */ |
| ep->cm_info.ord = (u8)min_t(u16, |
| (mpa_ord & MPA_V2_IRD_ORD_MASK), |
| QED_IWARP_ORD_DEFAULT); |
| |
| ep->cm_info.ird = (u8)min_t(u16, |
| (mpa_ird & MPA_V2_IRD_ORD_MASK), |
| QED_IWARP_IRD_DEFAULT); |
| |
| /* Peer2Peer negotiation */ |
| ep->rtr_type = MPA_RTR_TYPE_NONE; |
| if (mpa_ird & MPA_V2_PEER2PEER_MODEL) { |
| if (mpa_ord & MPA_V2_WRITE_RTR) |
| ep->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE; |
| |
| if (mpa_ord & MPA_V2_READ_RTR) |
| ep->rtr_type |= MPA_RTR_TYPE_ZERO_READ; |
| |
| if (mpa_ird & MPA_V2_SEND_RTR) |
| ep->rtr_type |= MPA_RTR_TYPE_ZERO_SEND; |
| |
| ep->rtr_type &= iwarp_info->rtr_type; |
| |
| /* if we're left with no match send our capabilities */ |
| if (ep->rtr_type == MPA_RTR_TYPE_NONE) |
| ep->rtr_type = iwarp_info->rtr_type; |
| } |
| |
| ep->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; |
| } else { |
| ep->cm_info.ord = QED_IWARP_ORD_DEFAULT; |
| ep->cm_info.ird = QED_IWARP_IRD_DEFAULT; |
| ep->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x rtr:0x%x ulp_data_len = %x mpa_hdr_size = %x\n", |
| mpa_rev, ep->cm_info.ord, ep->cm_info.ird, ep->rtr_type, |
| async_data->mpa_request.ulp_data_len, mpa_hdr_size); |
| |
| /* Strip mpa v2 hdr from private data before sending to upper layer */ |
| ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_hdr_size; |
| |
| ulp_data_len = le16_to_cpu(async_data->mpa_request.ulp_data_len); |
| ep->cm_info.private_data_len = ulp_data_len - mpa_hdr_size; |
| |
| params.event = QED_IWARP_EVENT_MPA_REQUEST; |
| params.cm_info = &ep->cm_info; |
| params.ep_context = ep; |
| params.status = 0; |
| |
| ep->state = QED_IWARP_EP_MPA_REQ_RCVD; |
| ep->event_cb(ep->cb_context, ¶ms); |
| } |
| |
| static int |
| qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod; |
| struct mpa_outgoing_params *common; |
| struct qed_iwarp_info *iwarp_info; |
| struct qed_sp_init_data init_data; |
| dma_addr_t async_output_phys; |
| struct qed_spq_entry *p_ent; |
| dma_addr_t out_pdata_phys; |
| dma_addr_t in_pdata_phys; |
| struct qed_rdma_qp *qp; |
| bool reject; |
| u32 val; |
| int rc; |
| |
| if (!ep) |
| return -EINVAL; |
| |
| qp = ep->qp; |
| reject = !qp; |
| |
| memset(&init_data, 0, sizeof(init_data)); |
| init_data.cid = reject ? ep->tcp_cid : qp->icid; |
| init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; |
| |
| if (ep->connect_mode == TCP_CONNECT_ACTIVE) |
| init_data.comp_mode = QED_SPQ_MODE_CB; |
| else |
| init_data.comp_mode = QED_SPQ_MODE_EBLOCK; |
| |
| rc = qed_sp_init_request(p_hwfn, &p_ent, |
| IWARP_RAMROD_CMD_ID_MPA_OFFLOAD, |
| PROTOCOLID_IWARP, &init_data); |
| if (rc) |
| return rc; |
| |
| p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload; |
| common = &p_mpa_ramrod->common; |
| |
| out_pdata_phys = ep->ep_buffer_phys + |
| offsetof(struct qed_iwarp_ep_memory, out_pdata); |
| DMA_REGPAIR_LE(common->outgoing_ulp_buffer.addr, out_pdata_phys); |
| |
| val = ep->cm_info.private_data_len; |
| common->outgoing_ulp_buffer.len = cpu_to_le16(val); |
| common->crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed; |
| |
| common->out_rq.ord = cpu_to_le32(ep->cm_info.ord); |
| common->out_rq.ird = cpu_to_le32(ep->cm_info.ird); |
| |
| val = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid; |
| p_mpa_ramrod->tcp_cid = cpu_to_le32(val); |
| |
| in_pdata_phys = ep->ep_buffer_phys + |
| offsetof(struct qed_iwarp_ep_memory, in_pdata); |
| p_mpa_ramrod->tcp_connect_side = ep->connect_mode; |
| DMA_REGPAIR_LE(p_mpa_ramrod->incoming_ulp_buffer.addr, |
| in_pdata_phys); |
| p_mpa_ramrod->incoming_ulp_buffer.len = |
| cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata)); |
| async_output_phys = ep->ep_buffer_phys + |
| offsetof(struct qed_iwarp_ep_memory, async_output); |
| DMA_REGPAIR_LE(p_mpa_ramrod->async_eqe_output_buf, |
| async_output_phys); |
| p_mpa_ramrod->handle_for_async.hi = cpu_to_le32(PTR_HI(ep)); |
| p_mpa_ramrod->handle_for_async.lo = cpu_to_le32(PTR_LO(ep)); |
| |
| if (!reject) { |
| DMA_REGPAIR_LE(p_mpa_ramrod->shared_queue_addr, |
| qp->shared_queue_phys_addr); |
| p_mpa_ramrod->stats_counter_id = |
| RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + qp->stats_queue; |
| } else { |
| common->reject = 1; |
| } |
| |
| iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| p_mpa_ramrod->rcv_wnd = cpu_to_le16(iwarp_info->rcv_wnd_size); |
| p_mpa_ramrod->mode = ep->mpa_rev; |
| SET_FIELD(p_mpa_ramrod->rtr_pref, |
| IWARP_MPA_OFFLOAD_RAMROD_DATA_RTR_SUPPORTED, ep->rtr_type); |
| |
| ep->state = QED_IWARP_EP_MPA_OFFLOADED; |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| if (!reject) |
| ep->cid = qp->icid; /* Now they're migrated. */ |
| |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "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", |
| reject ? 0xffff : qp->icid, |
| ep->tcp_cid, |
| rc, |
| ep->cm_info.ird, |
| ep->cm_info.ord, ep->rtr_type, ep->mpa_rev, reject); |
| return rc; |
| } |
| |
| static void |
| qed_iwarp_return_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| ep->state = QED_IWARP_EP_INIT; |
| if (ep->qp) |
| ep->qp->ep = NULL; |
| ep->qp = NULL; |
| memset(&ep->cm_info, 0, sizeof(ep->cm_info)); |
| |
| if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) { |
| /* We don't care about the return code, it's ok if tcp_cid |
| * remains invalid...in this case we'll defer allocation |
| */ |
| qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); |
| } |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| list_move_tail(&ep->list_entry, |
| &p_hwfn->p_rdma_info->iwarp.ep_free_list); |
| |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| } |
| |
| static void |
| qed_iwarp_parse_private_data(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| struct mpa_v2_hdr *mpa_v2_params; |
| union async_output *async_data; |
| u16 mpa_ird, mpa_ord; |
| u8 mpa_data_size = 0; |
| u16 ulp_data_len; |
| |
| if (MPA_REV2(p_hwfn->p_rdma_info->iwarp.mpa_rev)) { |
| mpa_v2_params = |
| (struct mpa_v2_hdr *)(ep->ep_buffer_virt->in_pdata); |
| mpa_data_size = sizeof(*mpa_v2_params); |
| mpa_ird = ntohs(mpa_v2_params->ird); |
| mpa_ord = ntohs(mpa_v2_params->ord); |
| |
| ep->cm_info.ird = (u8)(mpa_ord & MPA_V2_IRD_ORD_MASK); |
| ep->cm_info.ord = (u8)(mpa_ird & MPA_V2_IRD_ORD_MASK); |
| } |
| |
| async_data = &ep->ep_buffer_virt->async_output; |
| ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_data_size; |
| |
| ulp_data_len = le16_to_cpu(async_data->mpa_response.ulp_data_len); |
| ep->cm_info.private_data_len = ulp_data_len - mpa_data_size; |
| } |
| |
| static void |
| qed_iwarp_mpa_reply_arrived(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| struct qed_iwarp_cm_event_params params; |
| |
| if (ep->connect_mode == TCP_CONNECT_PASSIVE) { |
| DP_NOTICE(p_hwfn, |
| "MPA reply event not expected on passive side!\n"); |
| return; |
| } |
| |
| params.event = QED_IWARP_EVENT_ACTIVE_MPA_REPLY; |
| |
| qed_iwarp_parse_private_data(p_hwfn, ep); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n", |
| ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird); |
| |
| params.cm_info = &ep->cm_info; |
| params.ep_context = ep; |
| params.status = 0; |
| |
| ep->mpa_reply_processed = true; |
| |
| ep->event_cb(ep->cb_context, ¶ms); |
| } |
| |
| #define QED_IWARP_CONNECT_MODE_STRING(ep) \ |
| ((ep)->connect_mode == TCP_CONNECT_PASSIVE) ? "Passive" : "Active" |
| |
| /* Called as a result of the event: |
| * IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE |
| */ |
| static void |
| qed_iwarp_mpa_complete(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, u8 fw_return_code) |
| { |
| struct qed_iwarp_cm_event_params params; |
| |
| if (ep->connect_mode == TCP_CONNECT_ACTIVE) |
| params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE; |
| else |
| params.event = QED_IWARP_EVENT_PASSIVE_COMPLETE; |
| |
| if (ep->connect_mode == TCP_CONNECT_ACTIVE && !ep->mpa_reply_processed) |
| qed_iwarp_parse_private_data(p_hwfn, ep); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n", |
| ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird); |
| |
| params.cm_info = &ep->cm_info; |
| |
| params.ep_context = ep; |
| |
| switch (fw_return_code) { |
| case RDMA_RETURN_OK: |
| ep->qp->max_rd_atomic_req = ep->cm_info.ord; |
| ep->qp->max_rd_atomic_resp = ep->cm_info.ird; |
| qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_RTS, 1); |
| ep->state = QED_IWARP_EP_ESTABLISHED; |
| params.status = 0; |
| break; |
| case IWARP_CONN_ERROR_MPA_TIMEOUT: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA timeout\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -EBUSY; |
| break; |
| case IWARP_CONN_ERROR_MPA_ERROR_REJECT: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA Reject\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_RST: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA reset(tcp cid: 0x%x)\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid, |
| ep->tcp_cid); |
| params.status = -ECONNRESET; |
| break; |
| case IWARP_CONN_ERROR_MPA_FIN: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA received FIN\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_INSUF_IRD: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA insufficient ird\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_RTR_MISMATCH: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA RTR MISMATCH\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_INVALID_PACKET: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_LOCAL_ERROR: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA Local Error\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_TERMINATE: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA TERMINATE\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid); |
| params.status = -ECONNREFUSED; |
| break; |
| default: |
| params.status = -ECONNRESET; |
| break; |
| } |
| |
| if (fw_return_code != RDMA_RETURN_OK) |
| /* paired with READ_ONCE in destroy_qp */ |
| smp_store_release(&ep->state, QED_IWARP_EP_CLOSED); |
| |
| ep->event_cb(ep->cb_context, ¶ms); |
| |
| /* on passive side, if there is no associated QP (REJECT) we need to |
| * return the ep to the pool, (in the regular case we add an element |
| * in accept instead of this one. |
| * In both cases we need to remove it from the ep_list. |
| */ |
| if (fw_return_code != RDMA_RETURN_OK) { |
| ep->tcp_cid = QED_IWARP_INVALID_TCP_CID; |
| if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && |
| (!ep->qp)) { /* Rejected */ |
| qed_iwarp_return_ep(p_hwfn, ep); |
| } else { |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_del(&ep->list_entry); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| } |
| } |
| } |
| |
| static void |
| qed_iwarp_mpa_v2_set_private(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, u8 *mpa_data_size) |
| { |
| struct mpa_v2_hdr *mpa_v2_params; |
| u16 mpa_ird, mpa_ord; |
| |
| *mpa_data_size = 0; |
| if (MPA_REV2(ep->mpa_rev)) { |
| mpa_v2_params = |
| (struct mpa_v2_hdr *)ep->ep_buffer_virt->out_pdata; |
| *mpa_data_size = sizeof(*mpa_v2_params); |
| |
| mpa_ird = (u16)ep->cm_info.ird; |
| mpa_ord = (u16)ep->cm_info.ord; |
| |
| if (ep->rtr_type != MPA_RTR_TYPE_NONE) { |
| mpa_ird |= MPA_V2_PEER2PEER_MODEL; |
| |
| if (ep->rtr_type & MPA_RTR_TYPE_ZERO_SEND) |
| mpa_ird |= MPA_V2_SEND_RTR; |
| |
| if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE) |
| mpa_ord |= MPA_V2_WRITE_RTR; |
| |
| if (ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) |
| mpa_ord |= MPA_V2_READ_RTR; |
| } |
| |
| mpa_v2_params->ird = htons(mpa_ird); |
| mpa_v2_params->ord = htons(mpa_ord); |
| |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "MPA_NEGOTIATE Header: [%x ord:%x ird] %x ord:%x ird:%x peer2peer:%x rtr_send:%x rtr_write:%x rtr_read:%x\n", |
| mpa_v2_params->ird, |
| mpa_v2_params->ord, |
| *((u32 *)mpa_v2_params), |
| mpa_ord & MPA_V2_IRD_ORD_MASK, |
| mpa_ird & MPA_V2_IRD_ORD_MASK, |
| !!(mpa_ird & MPA_V2_PEER2PEER_MODEL), |
| !!(mpa_ird & MPA_V2_SEND_RTR), |
| !!(mpa_ord & MPA_V2_WRITE_RTR), |
| !!(mpa_ord & MPA_V2_READ_RTR)); |
| } |
| } |
| |
| int qed_iwarp_connect(void *rdma_cxt, |
| struct qed_iwarp_connect_in *iparams, |
| struct qed_iwarp_connect_out *oparams) |
| { |
| struct qed_hwfn *p_hwfn = rdma_cxt; |
| struct qed_iwarp_info *iwarp_info; |
| struct qed_iwarp_ep *ep; |
| u8 mpa_data_size = 0; |
| u32 cid; |
| int rc; |
| |
| if ((iparams->cm_info.ord > QED_IWARP_ORD_DEFAULT) || |
| (iparams->cm_info.ird > QED_IWARP_IRD_DEFAULT)) { |
| DP_NOTICE(p_hwfn, |
| "QP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", |
| iparams->qp->icid, iparams->cm_info.ord, |
| iparams->cm_info.ird); |
| |
| return -EINVAL; |
| } |
| |
| iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| |
| /* Allocate ep object */ |
| rc = qed_iwarp_alloc_cid(p_hwfn, &cid); |
| if (rc) |
| return rc; |
| |
| rc = qed_iwarp_create_ep(p_hwfn, &ep); |
| if (rc) |
| goto err; |
| |
| ep->tcp_cid = cid; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| ep->qp = iparams->qp; |
| ep->qp->ep = ep; |
| ether_addr_copy(ep->remote_mac_addr, iparams->remote_mac_addr); |
| ether_addr_copy(ep->local_mac_addr, iparams->local_mac_addr); |
| memcpy(&ep->cm_info, &iparams->cm_info, sizeof(ep->cm_info)); |
| |
| ep->cm_info.ord = iparams->cm_info.ord; |
| ep->cm_info.ird = iparams->cm_info.ird; |
| |
| ep->rtr_type = iwarp_info->rtr_type; |
| if (!iwarp_info->peer2peer) |
| ep->rtr_type = MPA_RTR_TYPE_NONE; |
| |
| if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && (ep->cm_info.ord == 0)) |
| ep->cm_info.ord = 1; |
| |
| ep->mpa_rev = iwarp_info->mpa_rev; |
| |
| qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); |
| |
| ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; |
| ep->cm_info.private_data_len = iparams->cm_info.private_data_len + |
| mpa_data_size; |
| |
| memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, |
| iparams->cm_info.private_data, |
| iparams->cm_info.private_data_len); |
| |
| ep->mss = iparams->mss; |
| ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss); |
| |
| ep->event_cb = iparams->event_cb; |
| ep->cb_context = iparams->cb_context; |
| ep->connect_mode = TCP_CONNECT_ACTIVE; |
| |
| oparams->ep_context = ep; |
| |
| rc = qed_iwarp_tcp_offload(p_hwfn, ep); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x) rc = %d\n", |
| iparams->qp->icid, ep->tcp_cid, rc); |
| |
| if (rc) { |
| qed_iwarp_destroy_ep(p_hwfn, ep, true); |
| goto err; |
| } |
| |
| return rc; |
| err: |
| qed_iwarp_cid_cleaned(p_hwfn, cid); |
| |
| return rc; |
| } |
| |
| static struct qed_iwarp_ep *qed_iwarp_get_free_ep(struct qed_hwfn *p_hwfn) |
| { |
| struct qed_iwarp_ep *ep = NULL; |
| int rc; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| if (list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { |
| DP_ERR(p_hwfn, "Ep list is empty\n"); |
| goto out; |
| } |
| |
| ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list, |
| struct qed_iwarp_ep, list_entry); |
| |
| /* in some cases we could have failed allocating a tcp cid when added |
| * from accept / failure... retry now..this is not the common case. |
| */ |
| if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) { |
| rc = qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); |
| |
| /* if we fail we could look for another entry with a valid |
| * tcp_cid, but since we don't expect to reach this anyway |
| * it's not worth the handling |
| */ |
| if (rc) { |
| ep->tcp_cid = QED_IWARP_INVALID_TCP_CID; |
| ep = NULL; |
| goto out; |
| } |
| } |
| |
| list_del(&ep->list_entry); |
| |
| out: |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| return ep; |
| } |
| |
| #define QED_IWARP_MAX_CID_CLEAN_TIME 100 |
| #define QED_IWARP_MAX_NO_PROGRESS_CNT 5 |
| |
| /* This function waits for all the bits of a bmap to be cleared, as long as |
| * there is progress ( i.e. the number of bits left to be cleared decreases ) |
| * the function continues. |
| */ |
| static int |
| qed_iwarp_wait_cid_map_cleared(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap) |
| { |
| int prev_weight = 0; |
| int wait_count = 0; |
| int weight = 0; |
| |
| weight = bitmap_weight(bmap->bitmap, bmap->max_count); |
| prev_weight = weight; |
| |
| while (weight) { |
| /* If the HW device is during recovery, all resources are |
| * immediately reset without receiving a per-cid indication |
| * from HW. In this case we don't expect the cid_map to be |
| * cleared. |
| */ |
| if (p_hwfn->cdev->recov_in_prog) |
| return 0; |
| |
| msleep(QED_IWARP_MAX_CID_CLEAN_TIME); |
| |
| weight = bitmap_weight(bmap->bitmap, bmap->max_count); |
| |
| if (prev_weight == weight) { |
| wait_count++; |
| } else { |
| prev_weight = weight; |
| wait_count = 0; |
| } |
| |
| if (wait_count > QED_IWARP_MAX_NO_PROGRESS_CNT) { |
| DP_NOTICE(p_hwfn, |
| "%s bitmap wait timed out (%d cids pending)\n", |
| bmap->name, weight); |
| return -EBUSY; |
| } |
| } |
| return 0; |
| } |
| |
| static int qed_iwarp_wait_for_all_cids(struct qed_hwfn *p_hwfn) |
| { |
| int rc; |
| int i; |
| |
| rc = qed_iwarp_wait_cid_map_cleared(p_hwfn, |
| &p_hwfn->p_rdma_info->tcp_cid_map); |
| if (rc) |
| return rc; |
| |
| /* Now free the tcp cids from the main cid map */ |
| for (i = 0; i < QED_IWARP_PREALLOC_CNT; i++) |
| qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, i); |
| |
| /* Now wait for all cids to be completed */ |
| return qed_iwarp_wait_cid_map_cleared(p_hwfn, |
| &p_hwfn->p_rdma_info->cid_map); |
| } |
| |
| static void qed_iwarp_free_prealloc_ep(struct qed_hwfn *p_hwfn) |
| { |
| struct qed_iwarp_ep *ep; |
| |
| while (!list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list, |
| struct qed_iwarp_ep, list_entry); |
| |
| if (!ep) { |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| break; |
| } |
| list_del(&ep->list_entry); |
| |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| if (ep->tcp_cid != QED_IWARP_INVALID_TCP_CID) |
| qed_iwarp_cid_cleaned(p_hwfn, ep->tcp_cid); |
| |
| qed_iwarp_destroy_ep(p_hwfn, ep, false); |
| } |
| } |
| |
| static int qed_iwarp_prealloc_ep(struct qed_hwfn *p_hwfn, bool init) |
| { |
| struct qed_iwarp_ep *ep; |
| int rc = 0; |
| int count; |
| u32 cid; |
| int i; |
| |
| count = init ? QED_IWARP_PREALLOC_CNT : 1; |
| for (i = 0; i < count; i++) { |
| rc = qed_iwarp_create_ep(p_hwfn, &ep); |
| if (rc) |
| return rc; |
| |
| /* During initialization we allocate from the main pool, |
| * afterwards we allocate only from the tcp_cid. |
| */ |
| if (init) { |
| rc = qed_iwarp_alloc_cid(p_hwfn, &cid); |
| if (rc) |
| goto err; |
| qed_iwarp_set_tcp_cid(p_hwfn, cid); |
| } else { |
| /* We don't care about the return code, it's ok if |
| * tcp_cid remains invalid...in this case we'll |
| * defer allocation |
| */ |
| qed_iwarp_alloc_tcp_cid(p_hwfn, &cid); |
| } |
| |
| ep->tcp_cid = cid; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_add_tail(&ep->list_entry, |
| &p_hwfn->p_rdma_info->iwarp.ep_free_list); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| } |
| |
| return rc; |
| |
| err: |
| qed_iwarp_destroy_ep(p_hwfn, ep, false); |
| |
| return rc; |
| } |
| |
| int qed_iwarp_alloc(struct qed_hwfn *p_hwfn) |
| { |
| int rc; |
| |
| /* Allocate bitmap for tcp cid. These are used by passive side |
| * to ensure it can allocate a tcp cid during dpc that was |
| * pre-acquired and doesn't require dynamic allocation of ilt |
| */ |
| rc = qed_rdma_bmap_alloc(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, |
| QED_IWARP_PREALLOC_CNT, "TCP_CID"); |
| if (rc) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Failed to allocate tcp cid, rc = %d\n", rc); |
| return rc; |
| } |
| |
| INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_free_list); |
| spin_lock_init(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| rc = qed_iwarp_prealloc_ep(p_hwfn, true); |
| if (rc) |
| return rc; |
| |
| return qed_ooo_alloc(p_hwfn); |
| } |
| |
| void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn) |
| { |
| struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| |
| qed_ooo_free(p_hwfn); |
| qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1); |
| kfree(iwarp_info->mpa_bufs); |
| kfree(iwarp_info->partial_fpdus); |
| kfree(iwarp_info->mpa_intermediate_buf); |
| } |
| |
| int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams) |
| { |
| struct qed_hwfn *p_hwfn = rdma_cxt; |
| struct qed_iwarp_ep *ep; |
| u8 mpa_data_size = 0; |
| int rc; |
| |
| ep = iparams->ep_context; |
| if (!ep) { |
| DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n"); |
| return -EINVAL; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", |
| iparams->qp->icid, ep->tcp_cid); |
| |
| if ((iparams->ord > QED_IWARP_ORD_DEFAULT) || |
| (iparams->ird > QED_IWARP_IRD_DEFAULT)) { |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "QP(0x%x) EP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", |
| iparams->qp->icid, |
| ep->tcp_cid, iparams->ord, iparams->ord); |
| return -EINVAL; |
| } |
| |
| qed_iwarp_prealloc_ep(p_hwfn, false); |
| |
| ep->cb_context = iparams->cb_context; |
| ep->qp = iparams->qp; |
| ep->qp->ep = ep; |
| |
| if (ep->mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { |
| /* Negotiate ord/ird: if upperlayer requested ord larger than |
| * ird advertised by remote, we need to decrease our ord |
| */ |
| if (iparams->ord > ep->cm_info.ird) |
| iparams->ord = ep->cm_info.ird; |
| |
| if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && |
| (iparams->ird == 0)) |
| iparams->ird = 1; |
| } |
| |
| /* Update cm_info ord/ird to be negotiated values */ |
| ep->cm_info.ord = iparams->ord; |
| ep->cm_info.ird = iparams->ird; |
| |
| qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); |
| |
| ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; |
| ep->cm_info.private_data_len = iparams->private_data_len + |
| mpa_data_size; |
| |
| memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, |
| iparams->private_data, iparams->private_data_len); |
| |
| rc = qed_iwarp_mpa_offload(p_hwfn, ep); |
| if (rc) |
| qed_iwarp_modify_qp(p_hwfn, |
| iparams->qp, QED_IWARP_QP_STATE_ERROR, 1); |
| |
| return rc; |
| } |
| |
| int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams) |
| { |
| struct qed_hwfn *p_hwfn = rdma_cxt; |
| struct qed_iwarp_ep *ep; |
| u8 mpa_data_size = 0; |
| |
| ep = iparams->ep_context; |
| if (!ep) { |
| DP_ERR(p_hwfn, "Ep Context receive in reject is NULL\n"); |
| return -EINVAL; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x)\n", ep->tcp_cid); |
| |
| ep->cb_context = iparams->cb_context; |
| ep->qp = NULL; |
| |
| qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); |
| |
| ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; |
| ep->cm_info.private_data_len = iparams->private_data_len + |
| mpa_data_size; |
| |
| memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, |
| iparams->private_data, iparams->private_data_len); |
| |
| return qed_iwarp_mpa_offload(p_hwfn, ep); |
| } |
| |
| static void |
| qed_iwarp_print_cm_info(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_cm_info *cm_info) |
| { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "ip_version = %d\n", |
| cm_info->ip_version); |
| |
| if (cm_info->ip_version == QED_TCP_IPV4) |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "remote_ip %pI4h:%x, local_ip %pI4h:%x vlan=%x\n", |
| cm_info->remote_ip, cm_info->remote_port, |
| cm_info->local_ip, cm_info->local_port, |
| cm_info->vlan); |
| else |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "remote_ip %pI6:%x, local_ip %pI6:%x vlan=%x\n", |
| cm_info->remote_ip, cm_info->remote_port, |
| cm_info->local_ip, cm_info->local_port, |
| cm_info->vlan); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "private_data_len = %x ord = %d, ird = %d\n", |
| cm_info->private_data_len, cm_info->ord, cm_info->ird); |
| } |
| |
| static int |
| qed_iwarp_ll2_post_rx(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ll2_buff *buf, u8 handle) |
| { |
| int rc; |
| |
| rc = qed_ll2_post_rx_buffer(p_hwfn, handle, buf->data_phys_addr, |
| (u16)buf->buff_size, buf, 1); |
| if (rc) { |
| DP_NOTICE(p_hwfn, |
| "Failed to repost rx buffer to ll2 rc = %d, handle=%d\n", |
| rc, handle); |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, buf->buff_size, |
| buf->data, buf->data_phys_addr); |
| kfree(buf); |
| } |
| |
| return rc; |
| } |
| |
| static bool |
| qed_iwarp_ep_exists(struct qed_hwfn *p_hwfn, struct qed_iwarp_cm_info *cm_info) |
| { |
| struct qed_iwarp_ep *ep = NULL; |
| bool found = false; |
| |
| list_for_each_entry(ep, |
| &p_hwfn->p_rdma_info->iwarp.ep_list, |
| list_entry) { |
| if ((ep->cm_info.local_port == cm_info->local_port) && |
| (ep->cm_info.remote_port == cm_info->remote_port) && |
| (ep->cm_info.vlan == cm_info->vlan) && |
| !memcmp(&ep->cm_info.local_ip, cm_info->local_ip, |
| sizeof(cm_info->local_ip)) && |
| !memcmp(&ep->cm_info.remote_ip, cm_info->remote_ip, |
| sizeof(cm_info->remote_ip))) { |
| found = true; |
| break; |
| } |
| } |
| |
| if (found) { |
| DP_NOTICE(p_hwfn, |
| "SYN received on active connection - dropping\n"); |
| qed_iwarp_print_cm_info(p_hwfn, cm_info); |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static struct qed_iwarp_listener * |
| qed_iwarp_get_listener(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_cm_info *cm_info) |
| { |
| struct qed_iwarp_listener *listener = NULL; |
| static const u32 ip_zero[4] = { 0, 0, 0, 0 }; |
| bool found = false; |
| |
| list_for_each_entry(listener, |
| &p_hwfn->p_rdma_info->iwarp.listen_list, |
| list_entry) { |
| if (listener->port == cm_info->local_port) { |
| if (!memcmp(listener->ip_addr, |
| ip_zero, sizeof(ip_zero))) { |
| found = true; |
| break; |
| } |
| |
| if (!memcmp(listener->ip_addr, |
| cm_info->local_ip, |
| sizeof(cm_info->local_ip)) && |
| (listener->vlan == cm_info->vlan)) { |
| found = true; |
| break; |
| } |
| } |
| } |
| |
| if (found) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener found = %p\n", |
| listener); |
| return listener; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener not found\n"); |
| return NULL; |
| } |
| |
| static int |
| qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_cm_info *cm_info, |
| void *buf, |
| u8 *remote_mac_addr, |
| u8 *local_mac_addr, |
| int *payload_len, int *tcp_start_offset) |
| { |
| struct vlan_ethhdr *vethh; |
| bool vlan_valid = false; |
| struct ipv6hdr *ip6h; |
| struct ethhdr *ethh; |
| struct tcphdr *tcph; |
| struct iphdr *iph; |
| int eth_hlen; |
| int ip_hlen; |
| int eth_type; |
| int i; |
| |
| ethh = buf; |
| eth_type = ntohs(ethh->h_proto); |
| if (eth_type == ETH_P_8021Q) { |
| vlan_valid = true; |
| vethh = (struct vlan_ethhdr *)ethh; |
| cm_info->vlan = ntohs(vethh->h_vlan_TCI) & VLAN_VID_MASK; |
| eth_type = ntohs(vethh->h_vlan_encapsulated_proto); |
| } |
| |
| eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0); |
| |
| if (!ether_addr_equal(ethh->h_dest, |
| p_hwfn->p_rdma_info->iwarp.mac_addr)) { |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "Got unexpected mac %pM instead of %pM\n", |
| ethh->h_dest, p_hwfn->p_rdma_info->iwarp.mac_addr); |
| return -EINVAL; |
| } |
| |
| ether_addr_copy(remote_mac_addr, ethh->h_source); |
| ether_addr_copy(local_mac_addr, ethh->h_dest); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_type =%d source mac: %pM\n", |
| eth_type, ethh->h_source); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_hlen=%d destination mac: %pM\n", |
| eth_hlen, ethh->h_dest); |
| |
| iph = (struct iphdr *)((u8 *)(ethh) + eth_hlen); |
| |
| if (eth_type == ETH_P_IP) { |
| if (iph->protocol != IPPROTO_TCP) { |
| DP_NOTICE(p_hwfn, |
| "Unexpected ip protocol on ll2 %x\n", |
| iph->protocol); |
| return -EINVAL; |
| } |
| |
| cm_info->local_ip[0] = ntohl(iph->daddr); |
| cm_info->remote_ip[0] = ntohl(iph->saddr); |
| cm_info->ip_version = QED_TCP_IPV4; |
| |
| ip_hlen = (iph->ihl) * sizeof(u32); |
| *payload_len = ntohs(iph->tot_len) - ip_hlen; |
| } else if (eth_type == ETH_P_IPV6) { |
| ip6h = (struct ipv6hdr *)iph; |
| |
| if (ip6h->nexthdr != IPPROTO_TCP) { |
| DP_NOTICE(p_hwfn, |
| "Unexpected ip protocol on ll2 %x\n", |
| iph->protocol); |
| return -EINVAL; |
| } |
| |
| for (i = 0; i < 4; i++) { |
| cm_info->local_ip[i] = |
| ntohl(ip6h->daddr.in6_u.u6_addr32[i]); |
| cm_info->remote_ip[i] = |
| ntohl(ip6h->saddr.in6_u.u6_addr32[i]); |
| } |
| cm_info->ip_version = QED_TCP_IPV6; |
| |
| ip_hlen = sizeof(*ip6h); |
| *payload_len = ntohs(ip6h->payload_len); |
| } else { |
| DP_NOTICE(p_hwfn, "Unexpected ethertype on ll2 %x\n", eth_type); |
| return -EINVAL; |
| } |
| |
| tcph = (struct tcphdr *)((u8 *)iph + ip_hlen); |
| |
| if (!tcph->syn) { |
| DP_NOTICE(p_hwfn, |
| "Only SYN type packet expected on this ll2 conn, iph->ihl=%d source=%d dest=%d\n", |
| iph->ihl, tcph->source, tcph->dest); |
| return -EINVAL; |
| } |
| |
| cm_info->local_port = ntohs(tcph->dest); |
| cm_info->remote_port = ntohs(tcph->source); |
| |
| qed_iwarp_print_cm_info(p_hwfn, cm_info); |
| |
| *tcp_start_offset = eth_hlen + ip_hlen; |
| |
| return 0; |
| } |
| |
| static struct qed_iwarp_fpdu *qed_iwarp_get_curr_fpdu(struct qed_hwfn *p_hwfn, |
| u16 cid) |
| { |
| struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| struct qed_iwarp_fpdu *partial_fpdu; |
| u32 idx; |
| |
| idx = cid - qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_IWARP); |
| if (idx >= iwarp_info->max_num_partial_fpdus) { |
| DP_ERR(p_hwfn, "Invalid cid %x max_num_partial_fpdus=%x\n", cid, |
| iwarp_info->max_num_partial_fpdus); |
| return NULL; |
| } |
| |
| partial_fpdu = &iwarp_info->partial_fpdus[idx]; |
| |
| return partial_fpdu; |
| } |
| |
| enum qed_iwarp_mpa_pkt_type { |
| QED_IWARP_MPA_PKT_PACKED, |
| QED_IWARP_MPA_PKT_PARTIAL, |
| QED_IWARP_MPA_PKT_UNALIGNED |
| }; |
| |
| #define QED_IWARP_INVALID_FPDU_LENGTH 0xffff |
| #define QED_IWARP_MPA_FPDU_LENGTH_SIZE (2) |
| #define QED_IWARP_MPA_CRC32_DIGEST_SIZE (4) |
| |
| /* Pad to multiple of 4 */ |
| #define QED_IWARP_PDU_DATA_LEN_WITH_PAD(data_len) ALIGN(data_len, 4) |
| #define QED_IWARP_FPDU_LEN_WITH_PAD(_mpa_len) \ |
| (QED_IWARP_PDU_DATA_LEN_WITH_PAD((_mpa_len) + \ |
| QED_IWARP_MPA_FPDU_LENGTH_SIZE) + \ |
| QED_IWARP_MPA_CRC32_DIGEST_SIZE) |
| |
| /* fpdu can be fragmented over maximum 3 bds: header, partial mpa, unaligned */ |
| #define QED_IWARP_MAX_BDS_PER_FPDU 3 |
| |
| static const char * const pkt_type_str[] = { |
| "QED_IWARP_MPA_PKT_PACKED", |
| "QED_IWARP_MPA_PKT_PARTIAL", |
| "QED_IWARP_MPA_PKT_UNALIGNED" |
| }; |
| |
| static int |
| qed_iwarp_recycle_pkt(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_fpdu *fpdu, |
| struct qed_iwarp_ll2_buff *buf); |
| |
| static enum qed_iwarp_mpa_pkt_type |
| qed_iwarp_mpa_classify(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_fpdu *fpdu, |
| u16 tcp_payload_len, u8 *mpa_data) |
| { |
| enum qed_iwarp_mpa_pkt_type pkt_type; |
| u16 mpa_len; |
| |
| if (fpdu->incomplete_bytes) { |
| pkt_type = QED_IWARP_MPA_PKT_UNALIGNED; |
| goto out; |
| } |
| |
| /* special case of one byte remaining... |
| * lower byte will be read next packet |
| */ |
| if (tcp_payload_len == 1) { |
| fpdu->fpdu_length = *mpa_data << BITS_PER_BYTE; |
| pkt_type = QED_IWARP_MPA_PKT_PARTIAL; |
| goto out; |
| } |
| |
| mpa_len = ntohs(*(__force __be16 *)mpa_data); |
| fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len); |
| |
| if (fpdu->fpdu_length <= tcp_payload_len) |
| pkt_type = QED_IWARP_MPA_PKT_PACKED; |
| else |
| pkt_type = QED_IWARP_MPA_PKT_PARTIAL; |
| |
| out: |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "MPA_ALIGN: %s: fpdu_length=0x%x tcp_payload_len:0x%x\n", |
| pkt_type_str[pkt_type], fpdu->fpdu_length, tcp_payload_len); |
| |
| return pkt_type; |
| } |
| |
| static void |
| qed_iwarp_init_fpdu(struct qed_iwarp_ll2_buff *buf, |
| struct qed_iwarp_fpdu *fpdu, |
| struct unaligned_opaque_data *pkt_data, |
| u16 tcp_payload_size, u8 placement_offset) |
| { |
| u16 first_mpa_offset = le16_to_cpu(pkt_data->first_mpa_offset); |
| |
| fpdu->mpa_buf = buf; |
| fpdu->pkt_hdr = buf->data_phys_addr + placement_offset; |
| fpdu->pkt_hdr_size = pkt_data->tcp_payload_offset; |
| fpdu->mpa_frag = buf->data_phys_addr + first_mpa_offset; |
| fpdu->mpa_frag_virt = (u8 *)(buf->data) + first_mpa_offset; |
| |
| if (tcp_payload_size == 1) |
| fpdu->incomplete_bytes = QED_IWARP_INVALID_FPDU_LENGTH; |
| else if (tcp_payload_size < fpdu->fpdu_length) |
| fpdu->incomplete_bytes = fpdu->fpdu_length - tcp_payload_size; |
| else |
| fpdu->incomplete_bytes = 0; /* complete fpdu */ |
| |
| fpdu->mpa_frag_len = fpdu->fpdu_length - fpdu->incomplete_bytes; |
| } |
| |
| static int |
| qed_iwarp_cp_pkt(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_fpdu *fpdu, |
| struct unaligned_opaque_data *pkt_data, |
| struct qed_iwarp_ll2_buff *buf, u16 tcp_payload_size) |
| { |
| u16 first_mpa_offset = le16_to_cpu(pkt_data->first_mpa_offset); |
| u8 *tmp_buf = p_hwfn->p_rdma_info->iwarp.mpa_intermediate_buf; |
| int rc; |
| |
| /* need to copy the data from the partial packet stored in fpdu |
| * to the new buf, for this we also need to move the data currently |
| * placed on the buf. The assumption is that the buffer is big enough |
| * since fpdu_length <= mss, we use an intermediate buffer since |
| * we may need to copy the new data to an overlapping location |
| */ |
| if ((fpdu->mpa_frag_len + tcp_payload_size) > (u16)buf->buff_size) { |
| DP_ERR(p_hwfn, |
| "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", |
| buf->buff_size, fpdu->mpa_frag_len, |
| tcp_payload_size, fpdu->incomplete_bytes); |
| return -EINVAL; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "MPA ALIGN Copying fpdu: [%p, %d] [%p, %d]\n", |
| fpdu->mpa_frag_virt, fpdu->mpa_frag_len, |
| (u8 *)(buf->data) + first_mpa_offset, tcp_payload_size); |
| |
| memcpy(tmp_buf, fpdu->mpa_frag_virt, fpdu->mpa_frag_len); |
| memcpy(tmp_buf + fpdu->mpa_frag_len, |
| (u8 *)(buf->data) + first_mpa_offset, tcp_payload_size); |
| |
| rc = qed_iwarp_recycle_pkt(p_hwfn, fpdu, fpdu->mpa_buf); |
| if (rc) |
| return rc; |
| |
| /* If we managed to post the buffer copy the data to the new buffer |
| * o/w this will occur in the next round... |
| */ |
| memcpy((u8 *)(buf->data), tmp_buf, |
| fpdu->mpa_frag_len + tcp_payload_size); |
| |
| fpdu->mpa_buf = buf; |
| /* fpdu->pkt_hdr remains as is */ |
| /* fpdu->mpa_frag is overridden with new buf */ |
| fpdu->mpa_frag = buf->data_phys_addr; |
| fpdu->mpa_frag_virt = buf->data; |
| fpdu->mpa_frag_len += tcp_payload_size; |
| |
| fpdu->incomplete_bytes -= tcp_payload_size; |
| |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "MPA ALIGN: split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n", |
| buf->buff_size, fpdu->mpa_frag_len, tcp_payload_size, |
| fpdu->incomplete_bytes); |
| |
| return 0; |
| } |
| |
| static void |
| qed_iwarp_update_fpdu_length(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_fpdu *fpdu, u8 *mpa_data) |
| { |
| u16 mpa_len; |
| |
| /* Update incomplete packets if needed */ |
| if (fpdu->incomplete_bytes == QED_IWARP_INVALID_FPDU_LENGTH) { |
| /* Missing lower byte is now available */ |
| mpa_len = fpdu->fpdu_length | *mpa_data; |
| fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len); |
| /* one byte of hdr */ |
| fpdu->mpa_frag_len = 1; |
| fpdu->incomplete_bytes = fpdu->fpdu_length - 1; |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "MPA_ALIGN: Partial header mpa_len=%x fpdu_length=%x incomplete_bytes=%x\n", |
| mpa_len, fpdu->fpdu_length, fpdu->incomplete_bytes); |
| } |
| } |
| |
| #define QED_IWARP_IS_RIGHT_EDGE(_curr_pkt) \ |
| (GET_FIELD((_curr_pkt)->flags, \ |
| UNALIGNED_OPAQUE_DATA_PKT_REACHED_WIN_RIGHT_EDGE)) |
| |
| /* This function is used to recycle a buffer using the ll2 drop option. It |
| * uses the mechanism to ensure that all buffers posted to tx before this one |
| * were completed. The buffer sent here will be sent as a cookie in the tx |
| * completion function and can then be reposted to rx chain when done. The flow |
| * that requires this is the flow where a FPDU splits over more than 3 tcp |
| * segments. In this case the driver needs to re-post a rx buffer instead of |
| * the one received, but driver can't simply repost a buffer it copied from |
| * as there is a case where the buffer was originally a packed FPDU, and is |
| * partially posted to FW. Driver needs to ensure FW is done with it. |
| */ |
| static int |
| qed_iwarp_recycle_pkt(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_fpdu *fpdu, |
| struct qed_iwarp_ll2_buff *buf) |
| { |
| struct qed_ll2_tx_pkt_info tx_pkt; |
| u8 ll2_handle; |
| int rc; |
| |
| memset(&tx_pkt, 0, sizeof(tx_pkt)); |
| tx_pkt.num_of_bds = 1; |
| tx_pkt.tx_dest = QED_LL2_TX_DEST_DROP; |
| tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; |
| tx_pkt.first_frag = fpdu->pkt_hdr; |
| tx_pkt.first_frag_len = fpdu->pkt_hdr_size; |
| buf->piggy_buf = NULL; |
| tx_pkt.cookie = buf; |
| |
| ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; |
| |
| rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); |
| if (rc) |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Can't drop packet rc=%d\n", rc); |
| |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "MPA_ALIGN: send drop tx packet [%lx, 0x%x], buf=%p, rc=%d\n", |
| (unsigned long int)tx_pkt.first_frag, |
| tx_pkt.first_frag_len, buf, rc); |
| |
| return rc; |
| } |
| |
| static int |
| qed_iwarp_win_right_edge(struct qed_hwfn *p_hwfn, struct qed_iwarp_fpdu *fpdu) |
| { |
| struct qed_ll2_tx_pkt_info tx_pkt; |
| u8 ll2_handle; |
| int rc; |
| |
| memset(&tx_pkt, 0, sizeof(tx_pkt)); |
| tx_pkt.num_of_bds = 1; |
| tx_pkt.tx_dest = QED_LL2_TX_DEST_LB; |
| tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; |
| |
| tx_pkt.first_frag = fpdu->pkt_hdr; |
| tx_pkt.first_frag_len = fpdu->pkt_hdr_size; |
| tx_pkt.enable_ip_cksum = true; |
| tx_pkt.enable_l4_cksum = true; |
| tx_pkt.calc_ip_len = true; |
| /* vlan overload with enum iwarp_ll2_tx_queues */ |
| tx_pkt.vlan = IWARP_LL2_ALIGNED_RIGHT_TRIMMED_TX_QUEUE; |
| |
| ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; |
| |
| rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); |
| if (rc) |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Can't send right edge rc=%d\n", rc); |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "MPA_ALIGN: Sent right edge FPDU num_bds=%d [%lx, 0x%x], rc=%d\n", |
| tx_pkt.num_of_bds, |
| (unsigned long int)tx_pkt.first_frag, |
| tx_pkt.first_frag_len, rc); |
| |
| return rc; |
| } |
| |
| static int |
| qed_iwarp_send_fpdu(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_fpdu *fpdu, |
| struct unaligned_opaque_data *curr_pkt, |
| struct qed_iwarp_ll2_buff *buf, |
| u16 tcp_payload_size, enum qed_iwarp_mpa_pkt_type pkt_type) |
| { |
| struct qed_ll2_tx_pkt_info tx_pkt; |
| u16 first_mpa_offset; |
| u8 ll2_handle; |
| int rc; |
| |
| memset(&tx_pkt, 0, sizeof(tx_pkt)); |
| |
| /* An unaligned packet means it's split over two tcp segments. So the |
| * complete packet requires 3 bds, one for the header, one for the |
| * part of the fpdu of the first tcp segment, and the last fragment |
| * will point to the remainder of the fpdu. A packed pdu, requires only |
| * two bds, one for the header and one for the data. |
| */ |
| tx_pkt.num_of_bds = (pkt_type == QED_IWARP_MPA_PKT_UNALIGNED) ? 3 : 2; |
| tx_pkt.tx_dest = QED_LL2_TX_DEST_LB; |
| tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; /* offset in words */ |
| |
| /* Send the mpa_buf only with the last fpdu (in case of packed) */ |
| if (pkt_type == QED_IWARP_MPA_PKT_UNALIGNED || |
| tcp_payload_size <= fpdu->fpdu_length) |
| tx_pkt.cookie = fpdu->mpa_buf; |
| |
| tx_pkt.first_frag = fpdu->pkt_hdr; |
| tx_pkt.first_frag_len = fpdu->pkt_hdr_size; |
| tx_pkt.enable_ip_cksum = true; |
| tx_pkt.enable_l4_cksum = true; |
| tx_pkt.calc_ip_len = true; |
| /* vlan overload with enum iwarp_ll2_tx_queues */ |
| tx_pkt.vlan = IWARP_LL2_ALIGNED_TX_QUEUE; |
| |
| /* special case of unaligned packet and not packed, need to send |
| * both buffers as cookie to release. |
| */ |
| if (tcp_payload_size == fpdu->incomplete_bytes) |
| fpdu->mpa_buf->piggy_buf = buf; |
| |
| ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; |
| |
| /* Set first fragment to header */ |
| rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); |
| if (rc) |
| goto out; |
| |
| /* Set second fragment to first part of packet */ |
| rc = qed_ll2_set_fragment_of_tx_packet(p_hwfn, ll2_handle, |
| fpdu->mpa_frag, |
| fpdu->mpa_frag_len); |
| if (rc) |
| goto out; |
| |
| if (!fpdu->incomplete_bytes) |
| goto out; |
| |
| first_mpa_offset = le16_to_cpu(curr_pkt->first_mpa_offset); |
| |
| /* Set third fragment to second part of the packet */ |
| rc = qed_ll2_set_fragment_of_tx_packet(p_hwfn, |
| ll2_handle, |
| buf->data_phys_addr + |
| first_mpa_offset, |
| fpdu->incomplete_bytes); |
| out: |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "MPA_ALIGN: Sent FPDU num_bds=%d first_frag_len=%x, mpa_frag_len=0x%x, incomplete_bytes:0x%x rc=%d\n", |
| tx_pkt.num_of_bds, |
| tx_pkt.first_frag_len, |
| fpdu->mpa_frag_len, |
| fpdu->incomplete_bytes, rc); |
| |
| return rc; |
| } |
| |
| static void |
| qed_iwarp_mpa_get_data(struct qed_hwfn *p_hwfn, |
| struct unaligned_opaque_data *curr_pkt, |
| u32 opaque_data0, u32 opaque_data1) |
| { |
| u64 opaque_data; |
| |
| opaque_data = HILO_64(cpu_to_le32(opaque_data1), |
| cpu_to_le32(opaque_data0)); |
| *curr_pkt = *((struct unaligned_opaque_data *)&opaque_data); |
| |
| le16_add_cpu(&curr_pkt->first_mpa_offset, |
| curr_pkt->tcp_payload_offset); |
| } |
| |
| /* This function is called when an unaligned or incomplete MPA packet arrives |
| * driver needs to align the packet, perhaps using previous data and send |
| * it down to FW once it is aligned. |
| */ |
| static int |
| qed_iwarp_process_mpa_pkt(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ll2_mpa_buf *mpa_buf) |
| { |
| struct unaligned_opaque_data *curr_pkt = &mpa_buf->data; |
| struct qed_iwarp_ll2_buff *buf = mpa_buf->ll2_buf; |
| enum qed_iwarp_mpa_pkt_type pkt_type; |
| struct qed_iwarp_fpdu *fpdu; |
| u16 cid, first_mpa_offset; |
| int rc = -EINVAL; |
| u8 *mpa_data; |
| |
| cid = le32_to_cpu(curr_pkt->cid); |
| |
| fpdu = qed_iwarp_get_curr_fpdu(p_hwfn, (u16)cid); |
| if (!fpdu) { /* something corrupt with cid, post rx back */ |
| DP_ERR(p_hwfn, "Invalid cid, drop and post back to rx cid=%x\n", |
| cid); |
| goto err; |
| } |
| |
| do { |
| first_mpa_offset = le16_to_cpu(curr_pkt->first_mpa_offset); |
| mpa_data = ((u8 *)(buf->data) + first_mpa_offset); |
| |
| pkt_type = qed_iwarp_mpa_classify(p_hwfn, fpdu, |
| mpa_buf->tcp_payload_len, |
| mpa_data); |
| |
| switch (pkt_type) { |
| case QED_IWARP_MPA_PKT_PARTIAL: |
| qed_iwarp_init_fpdu(buf, fpdu, |
| curr_pkt, |
| mpa_buf->tcp_payload_len, |
| mpa_buf->placement_offset); |
| |
| if (!QED_IWARP_IS_RIGHT_EDGE(curr_pkt)) { |
| mpa_buf->tcp_payload_len = 0; |
| break; |
| } |
| |
| rc = qed_iwarp_win_right_edge(p_hwfn, fpdu); |
| |
| if (rc) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Can't send FPDU:reset rc=%d\n", rc); |
| memset(fpdu, 0, sizeof(*fpdu)); |
| break; |
| } |
| |
| mpa_buf->tcp_payload_len = 0; |
| break; |
| case QED_IWARP_MPA_PKT_PACKED: |
| qed_iwarp_init_fpdu(buf, fpdu, |
| curr_pkt, |
| mpa_buf->tcp_payload_len, |
| mpa_buf->placement_offset); |
| |
| rc = qed_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, |
| mpa_buf->tcp_payload_len, |
| pkt_type); |
| if (rc) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Can't send FPDU:reset rc=%d\n", rc); |
| memset(fpdu, 0, sizeof(*fpdu)); |
| break; |
| } |
| |
| mpa_buf->tcp_payload_len -= fpdu->fpdu_length; |
| le16_add_cpu(&curr_pkt->first_mpa_offset, |
| fpdu->fpdu_length); |
| break; |
| case QED_IWARP_MPA_PKT_UNALIGNED: |
| qed_iwarp_update_fpdu_length(p_hwfn, fpdu, mpa_data); |
| if (mpa_buf->tcp_payload_len < fpdu->incomplete_bytes) { |
| /* special handling of fpdu split over more |
| * than 2 segments |
| */ |
| if (QED_IWARP_IS_RIGHT_EDGE(curr_pkt)) { |
| rc = qed_iwarp_win_right_edge(p_hwfn, |
| fpdu); |
| /* packet will be re-processed later */ |
| if (rc) |
| return rc; |
| } |
| |
| rc = qed_iwarp_cp_pkt(p_hwfn, fpdu, curr_pkt, |
| buf, |
| mpa_buf->tcp_payload_len); |
| if (rc) /* packet will be re-processed later */ |
| return rc; |
| |
| mpa_buf->tcp_payload_len = 0; |
| break; |
| } |
| |
| rc = qed_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, |
| mpa_buf->tcp_payload_len, |
| pkt_type); |
| if (rc) { |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Can't send FPDU:delay rc=%d\n", rc); |
| /* don't reset fpdu -> we need it for next |
| * classify |
| */ |
| break; |
| } |
| |
| mpa_buf->tcp_payload_len -= fpdu->incomplete_bytes; |
| le16_add_cpu(&curr_pkt->first_mpa_offset, |
| fpdu->incomplete_bytes); |
| |
| /* The framed PDU was sent - no more incomplete bytes */ |
| fpdu->incomplete_bytes = 0; |
| break; |
| } |
| } while (mpa_buf->tcp_payload_len && !rc); |
| |
| return rc; |
| |
| err: |
| qed_iwarp_ll2_post_rx(p_hwfn, |
| buf, |
| p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle); |
| return rc; |
| } |
| |
| static void qed_iwarp_process_pending_pkts(struct qed_hwfn *p_hwfn) |
| { |
| struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| struct qed_iwarp_ll2_mpa_buf *mpa_buf = NULL; |
| int rc; |
| |
| while (!list_empty(&iwarp_info->mpa_buf_pending_list)) { |
| mpa_buf = list_first_entry(&iwarp_info->mpa_buf_pending_list, |
| struct qed_iwarp_ll2_mpa_buf, |
| list_entry); |
| |
| rc = qed_iwarp_process_mpa_pkt(p_hwfn, mpa_buf); |
| |
| /* busy means break and continue processing later, don't |
| * remove the buf from the pending list. |
| */ |
| if (rc == -EBUSY) |
| break; |
| |
| list_move_tail(&mpa_buf->list_entry, |
| &iwarp_info->mpa_buf_list); |
| |
| if (rc) { /* different error, don't continue */ |
| DP_NOTICE(p_hwfn, "process pkts failed rc=%d\n", rc); |
| break; |
| } |
| } |
| } |
| |
| static void |
| qed_iwarp_ll2_comp_mpa_pkt(void *cxt, struct qed_ll2_comp_rx_data *data) |
| { |
| struct qed_iwarp_ll2_mpa_buf *mpa_buf; |
| struct qed_iwarp_info *iwarp_info; |
| struct qed_hwfn *p_hwfn = cxt; |
| u16 first_mpa_offset; |
| |
| iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| mpa_buf = list_first_entry(&iwarp_info->mpa_buf_list, |
| struct qed_iwarp_ll2_mpa_buf, list_entry); |
| if (!mpa_buf) { |
| DP_ERR(p_hwfn, "No free mpa buf\n"); |
| goto err; |
| } |
| |
| list_del(&mpa_buf->list_entry); |
| qed_iwarp_mpa_get_data(p_hwfn, &mpa_buf->data, |
| data->opaque_data_0, data->opaque_data_1); |
| |
| first_mpa_offset = le16_to_cpu(mpa_buf->data.first_mpa_offset); |
| |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "LL2 MPA CompRx payload_len:0x%x\tfirst_mpa_offset:0x%x\ttcp_payload_offset:0x%x\tflags:0x%x\tcid:0x%x\n", |
| data->length.packet_length, first_mpa_offset, |
| mpa_buf->data.tcp_payload_offset, mpa_buf->data.flags, |
| mpa_buf->data.cid); |
| |
| mpa_buf->ll2_buf = data->cookie; |
| mpa_buf->tcp_payload_len = data->length.packet_length - |
| first_mpa_offset; |
| |
| first_mpa_offset += data->u.placement_offset; |
| mpa_buf->data.first_mpa_offset = cpu_to_le16(first_mpa_offset); |
| mpa_buf->placement_offset = data->u.placement_offset; |
| |
| list_add_tail(&mpa_buf->list_entry, &iwarp_info->mpa_buf_pending_list); |
| |
| qed_iwarp_process_pending_pkts(p_hwfn); |
| return; |
| err: |
| qed_iwarp_ll2_post_rx(p_hwfn, data->cookie, |
| iwarp_info->ll2_mpa_handle); |
| } |
| |
| static void |
| qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data) |
| { |
| struct qed_iwarp_ll2_buff *buf = data->cookie; |
| struct qed_iwarp_listener *listener; |
| struct qed_ll2_tx_pkt_info tx_pkt; |
| struct qed_iwarp_cm_info cm_info; |
| struct qed_hwfn *p_hwfn = cxt; |
| u8 remote_mac_addr[ETH_ALEN]; |
| u8 local_mac_addr[ETH_ALEN]; |
| struct qed_iwarp_ep *ep; |
| int tcp_start_offset; |
| u8 ll2_syn_handle; |
| int payload_len; |
| u32 hdr_size; |
| int rc; |
| |
| memset(&cm_info, 0, sizeof(cm_info)); |
| ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle; |
| |
| /* Check if packet was received with errors... */ |
| if (data->err_flags) { |
| DP_NOTICE(p_hwfn, "Error received on SYN packet: 0x%x\n", |
| data->err_flags); |
| goto err; |
| } |
| |
| if (GET_FIELD(data->parse_flags, |
| PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED) && |
| GET_FIELD(data->parse_flags, PARSING_AND_ERR_FLAGS_L4CHKSMERROR)) { |
| DP_NOTICE(p_hwfn, "Syn packet received with checksum error\n"); |
| goto err; |
| } |
| |
| rc = qed_iwarp_parse_rx_pkt(p_hwfn, &cm_info, (u8 *)(buf->data) + |
| data->u.placement_offset, remote_mac_addr, |
| local_mac_addr, &payload_len, |
| &tcp_start_offset); |
| if (rc) |
| goto err; |
| |
| /* Check if there is a listener for this 4-tuple+vlan */ |
| listener = qed_iwarp_get_listener(p_hwfn, &cm_info); |
| if (!listener) { |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "SYN received on tuple not listened on parse_flags=%d packet len=%d\n", |
| data->parse_flags, data->length.packet_length); |
| |
| memset(&tx_pkt, 0, sizeof(tx_pkt)); |
| tx_pkt.num_of_bds = 1; |
| tx_pkt.l4_hdr_offset_w = (data->length.packet_length) >> 2; |
| tx_pkt.tx_dest = QED_LL2_TX_DEST_LB; |
| tx_pkt.first_frag = buf->data_phys_addr + |
| data->u.placement_offset; |
| tx_pkt.first_frag_len = data->length.packet_length; |
| tx_pkt.cookie = buf; |
| |
| rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_syn_handle, |
| &tx_pkt, true); |
| |
| if (rc) { |
| DP_NOTICE(p_hwfn, |
| "Can't post SYN back to chip rc=%d\n", rc); |
| goto err; |
| } |
| return; |
| } |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Received syn on listening port\n"); |
| /* There may be an open ep on this connection if this is a syn |
| * retrasnmit... need to make sure there isn't... |
| */ |
| if (qed_iwarp_ep_exists(p_hwfn, &cm_info)) |
| goto err; |
| |
| ep = qed_iwarp_get_free_ep(p_hwfn); |
| if (!ep) |
| goto err; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| ether_addr_copy(ep->remote_mac_addr, remote_mac_addr); |
| ether_addr_copy(ep->local_mac_addr, local_mac_addr); |
| |
| memcpy(&ep->cm_info, &cm_info, sizeof(ep->cm_info)); |
| |
| hdr_size = ((cm_info.ip_version == QED_TCP_IPV4) ? 40 : 60); |
| ep->mss = p_hwfn->p_rdma_info->iwarp.max_mtu - hdr_size; |
| ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss); |
| |
| ep->event_cb = listener->event_cb; |
| ep->cb_context = listener->cb_context; |
| ep->connect_mode = TCP_CONNECT_PASSIVE; |
| |
| ep->syn = buf; |
| ep->syn_ip_payload_length = (u16)payload_len; |
| ep->syn_phy_addr = buf->data_phys_addr + data->u.placement_offset + |
| tcp_start_offset; |
| |
| rc = qed_iwarp_tcp_offload(p_hwfn, ep); |
| if (rc) { |
| qed_iwarp_return_ep(p_hwfn, ep); |
| goto err; |
| } |
| |
| return; |
| err: |
| qed_iwarp_ll2_post_rx(p_hwfn, buf, ll2_syn_handle); |
| } |
| |
| static void qed_iwarp_ll2_rel_rx_pkt(void *cxt, u8 connection_handle, |
| void *cookie, dma_addr_t rx_buf_addr, |
| bool b_last_packet) |
| { |
| struct qed_iwarp_ll2_buff *buffer = cookie; |
| struct qed_hwfn *p_hwfn = cxt; |
| |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, buffer->buff_size, |
| buffer->data, buffer->data_phys_addr); |
| kfree(buffer); |
| } |
| |
| static void qed_iwarp_ll2_comp_tx_pkt(void *cxt, u8 connection_handle, |
| void *cookie, dma_addr_t first_frag_addr, |
| bool b_last_fragment, bool b_last_packet) |
| { |
| struct qed_iwarp_ll2_buff *buffer = cookie; |
| struct qed_iwarp_ll2_buff *piggy; |
| struct qed_hwfn *p_hwfn = cxt; |
| |
| if (!buffer) /* can happen in packed mpa unaligned... */ |
| return; |
| |
| /* this was originally an rx packet, post it back */ |
| piggy = buffer->piggy_buf; |
| if (piggy) { |
| buffer->piggy_buf = NULL; |
| qed_iwarp_ll2_post_rx(p_hwfn, piggy, connection_handle); |
| } |
| |
| qed_iwarp_ll2_post_rx(p_hwfn, buffer, connection_handle); |
| |
| if (connection_handle == p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle) |
| qed_iwarp_process_pending_pkts(p_hwfn); |
| |
| return; |
| } |
| |
| static void qed_iwarp_ll2_rel_tx_pkt(void *cxt, u8 connection_handle, |
| void *cookie, dma_addr_t first_frag_addr, |
| bool b_last_fragment, bool b_last_packet) |
| { |
| struct qed_iwarp_ll2_buff *buffer = cookie; |
| struct qed_hwfn *p_hwfn = cxt; |
| |
| if (!buffer) |
| return; |
| |
| if (buffer->piggy_buf) { |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, |
| buffer->piggy_buf->buff_size, |
| buffer->piggy_buf->data, |
| buffer->piggy_buf->data_phys_addr); |
| |
| kfree(buffer->piggy_buf); |
| } |
| |
| dma_free_coherent(&p_hwfn->cdev->pdev->dev, buffer->buff_size, |
| buffer->data, buffer->data_phys_addr); |
| |
| kfree(buffer); |
| } |
| |
| /* The only slowpath for iwarp ll2 is unalign flush. When this completion |
| * is received, need to reset the FPDU. |
| */ |
| static void |
| qed_iwarp_ll2_slowpath(void *cxt, |
| u8 connection_handle, |
| u32 opaque_data_0, u32 opaque_data_1) |
| { |
| struct unaligned_opaque_data unalign_data; |
| struct qed_hwfn *p_hwfn = cxt; |
| struct qed_iwarp_fpdu *fpdu; |
| u32 cid; |
| |
| qed_iwarp_mpa_get_data(p_hwfn, &unalign_data, |
| opaque_data_0, opaque_data_1); |
| |
| cid = le32_to_cpu(unalign_data.cid); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "(0x%x) Flush fpdu\n", cid); |
| |
| fpdu = qed_iwarp_get_curr_fpdu(p_hwfn, (u16)cid); |
| if (fpdu) |
| memset(fpdu, 0, sizeof(*fpdu)); |
| } |
| |
| static int qed_iwarp_ll2_stop(struct qed_hwfn *p_hwfn) |
| { |
| struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| int rc = 0; |
| |
| if (iwarp_info->ll2_syn_handle != QED_IWARP_HANDLE_INVAL) { |
| rc = qed_ll2_terminate_connection(p_hwfn, |
| iwarp_info->ll2_syn_handle); |
| if (rc) |
| DP_INFO(p_hwfn, "Failed to terminate syn connection\n"); |
| |
| qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_syn_handle); |
| iwarp_info->ll2_syn_handle = QED_IWARP_HANDLE_INVAL; |
| } |
| |
| if (iwarp_info->ll2_ooo_handle != QED_IWARP_HANDLE_INVAL) { |
| rc = qed_ll2_terminate_connection(p_hwfn, |
| iwarp_info->ll2_ooo_handle); |
| if (rc) |
| DP_INFO(p_hwfn, "Failed to terminate ooo connection\n"); |
| |
| qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_ooo_handle); |
| iwarp_info->ll2_ooo_handle = QED_IWARP_HANDLE_INVAL; |
| } |
| |
| if (iwarp_info->ll2_mpa_handle != QED_IWARP_HANDLE_INVAL) { |
| rc = qed_ll2_terminate_connection(p_hwfn, |
| iwarp_info->ll2_mpa_handle); |
| if (rc) |
| DP_INFO(p_hwfn, "Failed to terminate mpa connection\n"); |
| |
| qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_mpa_handle); |
| iwarp_info->ll2_mpa_handle = QED_IWARP_HANDLE_INVAL; |
| } |
| |
| qed_llh_remove_mac_filter(p_hwfn->cdev, 0, |
| p_hwfn->p_rdma_info->iwarp.mac_addr); |
| |
| return rc; |
| } |
| |
| static int |
| qed_iwarp_ll2_alloc_buffers(struct qed_hwfn *p_hwfn, |
| int num_rx_bufs, int buff_size, u8 ll2_handle) |
| { |
| struct qed_iwarp_ll2_buff *buffer; |
| int rc = 0; |
| int i; |
| |
| for (i = 0; i < num_rx_bufs; i++) { |
| buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); |
| if (!buffer) { |
| rc = -ENOMEM; |
| break; |
| } |
| |
| buffer->data = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, |
| buff_size, |
| &buffer->data_phys_addr, |
| GFP_KERNEL); |
| if (!buffer->data) { |
| kfree(buffer); |
| rc = -ENOMEM; |
| break; |
| } |
| |
| buffer->buff_size = buff_size; |
| rc = qed_iwarp_ll2_post_rx(p_hwfn, buffer, ll2_handle); |
| if (rc) |
| /* buffers will be deallocated by qed_ll2 */ |
| break; |
| } |
| return rc; |
| } |
| |
| #define QED_IWARP_MAX_BUF_SIZE(mtu) \ |
| ALIGN((mtu) + ETH_HLEN + 2 * VLAN_HLEN + 2 + ETH_CACHE_LINE_SIZE, \ |
| ETH_CACHE_LINE_SIZE) |
| |
| static int |
| qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn, |
| struct qed_rdma_start_in_params *params, |
| u32 rcv_wnd_size) |
| { |
| struct qed_iwarp_info *iwarp_info; |
| struct qed_ll2_acquire_data data; |
| struct qed_ll2_cbs cbs; |
| u32 buff_size; |
| u16 n_ooo_bufs; |
| int rc = 0; |
| int i; |
| |
| iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| iwarp_info->ll2_syn_handle = QED_IWARP_HANDLE_INVAL; |
| iwarp_info->ll2_ooo_handle = QED_IWARP_HANDLE_INVAL; |
| iwarp_info->ll2_mpa_handle = QED_IWARP_HANDLE_INVAL; |
| |
| iwarp_info->max_mtu = params->max_mtu; |
| |
| ether_addr_copy(p_hwfn->p_rdma_info->iwarp.mac_addr, params->mac_addr); |
| |
| rc = qed_llh_add_mac_filter(p_hwfn->cdev, 0, params->mac_addr); |
| if (rc) |
| return rc; |
| |
| /* Start SYN connection */ |
| cbs.rx_comp_cb = qed_iwarp_ll2_comp_syn_pkt; |
| cbs.rx_release_cb = qed_iwarp_ll2_rel_rx_pkt; |
| cbs.tx_comp_cb = qed_iwarp_ll2_comp_tx_pkt; |
| cbs.tx_release_cb = qed_iwarp_ll2_rel_tx_pkt; |
| cbs.slowpath_cb = NULL; |
| cbs.cookie = p_hwfn; |
| |
| memset(&data, 0, sizeof(data)); |
| data.input.conn_type = QED_LL2_TYPE_IWARP; |
| /* SYN will use ctx based queues */ |
| data.input.rx_conn_type = QED_LL2_RX_TYPE_CTX; |
| data.input.mtu = params->max_mtu; |
| data.input.rx_num_desc = QED_IWARP_LL2_SYN_RX_SIZE; |
| data.input.tx_num_desc = QED_IWARP_LL2_SYN_TX_SIZE; |
| data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ |
| data.input.tx_tc = PKT_LB_TC; |
| data.input.tx_dest = QED_LL2_TX_DEST_LB; |
| data.p_connection_handle = &iwarp_info->ll2_syn_handle; |
| data.cbs = &cbs; |
| |
| rc = qed_ll2_acquire_connection(p_hwfn, &data); |
| if (rc) { |
| DP_NOTICE(p_hwfn, "Failed to acquire LL2 connection\n"); |
| qed_llh_remove_mac_filter(p_hwfn->cdev, 0, params->mac_addr); |
| return rc; |
| } |
| |
| rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_syn_handle); |
| if (rc) { |
| DP_NOTICE(p_hwfn, "Failed to establish LL2 connection\n"); |
| goto err; |
| } |
| |
| buff_size = QED_IWARP_MAX_BUF_SIZE(params->max_mtu); |
| rc = qed_iwarp_ll2_alloc_buffers(p_hwfn, |
| QED_IWARP_LL2_SYN_RX_SIZE, |
| buff_size, |
| iwarp_info->ll2_syn_handle); |
| if (rc) |
| goto err; |
| |
| /* Start OOO connection */ |
| data.input.conn_type = QED_LL2_TYPE_OOO; |
| /* OOO/unaligned will use legacy ll2 queues (ram based) */ |
| data.input.rx_conn_type = QED_LL2_RX_TYPE_LEGACY; |
| data.input.mtu = params->max_mtu; |
| |
| n_ooo_bufs = (QED_IWARP_MAX_OOO * rcv_wnd_size) / |
| iwarp_info->max_mtu; |
| n_ooo_bufs = min_t(u32, n_ooo_bufs, QED_IWARP_LL2_OOO_MAX_RX_SIZE); |
| |
| data.input.rx_num_desc = n_ooo_bufs; |
| data.input.rx_num_ooo_buffers = n_ooo_bufs; |
| |
| data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ |
| data.input.tx_num_desc = QED_IWARP_LL2_OOO_DEF_TX_SIZE; |
| data.p_connection_handle = &iwarp_info->ll2_ooo_handle; |
| |
| rc = qed_ll2_acquire_connection(p_hwfn, &data); |
| if (rc) |
| goto err; |
| |
| rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_ooo_handle); |
| if (rc) |
| goto err; |
| |
| /* Start Unaligned MPA connection */ |
| cbs.rx_comp_cb = qed_iwarp_ll2_comp_mpa_pkt; |
| cbs.slowpath_cb = qed_iwarp_ll2_slowpath; |
| |
| memset(&data, 0, sizeof(data)); |
| data.input.conn_type = QED_LL2_TYPE_IWARP; |
| data.input.mtu = params->max_mtu; |
| /* FW requires that once a packet arrives OOO, it must have at |
| * least 2 rx buffers available on the unaligned connection |
| * for handling the case that it is a partial fpdu. |
| */ |
| data.input.rx_num_desc = n_ooo_bufs * 2; |
| data.input.tx_num_desc = data.input.rx_num_desc; |
| data.input.tx_max_bds_per_packet = QED_IWARP_MAX_BDS_PER_FPDU; |
| data.input.tx_tc = PKT_LB_TC; |
| data.input.tx_dest = QED_LL2_TX_DEST_LB; |
| data.p_connection_handle = &iwarp_info->ll2_mpa_handle; |
| data.input.secondary_queue = true; |
| data.cbs = &cbs; |
| |
| rc = qed_ll2_acquire_connection(p_hwfn, &data); |
| if (rc) |
| goto err; |
| |
| rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_mpa_handle); |
| if (rc) |
| goto err; |
| |
| rc = qed_iwarp_ll2_alloc_buffers(p_hwfn, |
| data.input.rx_num_desc, |
| buff_size, |
| iwarp_info->ll2_mpa_handle); |
| if (rc) |
| goto err; |
| |
| iwarp_info->partial_fpdus = kcalloc((u16)p_hwfn->p_rdma_info->num_qps, |
| sizeof(*iwarp_info->partial_fpdus), |
| GFP_KERNEL); |
| if (!iwarp_info->partial_fpdus) { |
| rc = -ENOMEM; |
| goto err; |
| } |
| |
| iwarp_info->max_num_partial_fpdus = (u16)p_hwfn->p_rdma_info->num_qps; |
| |
| iwarp_info->mpa_intermediate_buf = kzalloc(buff_size, GFP_KERNEL); |
| if (!iwarp_info->mpa_intermediate_buf) { |
| rc = -ENOMEM; |
| goto err; |
| } |
| |
| /* The mpa_bufs array serves for pending RX packets received on the |
| * mpa ll2 that don't have place on the tx ring and require later |
| * processing. We can't fail on allocation of such a struct therefore |
| * we allocate enough to take care of all rx packets |
| */ |
| iwarp_info->mpa_bufs = kcalloc(data.input.rx_num_desc, |
| sizeof(*iwarp_info->mpa_bufs), |
| GFP_KERNEL); |
| if (!iwarp_info->mpa_bufs) { |
| rc = -ENOMEM; |
| goto err; |
| } |
| |
| INIT_LIST_HEAD(&iwarp_info->mpa_buf_pending_list); |
| INIT_LIST_HEAD(&iwarp_info->mpa_buf_list); |
| for (i = 0; i < data.input.rx_num_desc; i++) |
| list_add_tail(&iwarp_info->mpa_bufs[i].list_entry, |
| &iwarp_info->mpa_buf_list); |
| return rc; |
| err: |
| qed_iwarp_ll2_stop(p_hwfn); |
| |
| return rc; |
| } |
| |
| static struct { |
| u32 two_ports; |
| u32 four_ports; |
| } qed_iwarp_rcv_wnd_size[MAX_CHIP_IDS] = { |
| {QED_IWARP_RCV_WND_SIZE_DEF_BB_2P, QED_IWARP_RCV_WND_SIZE_DEF_BB_4P}, |
| {QED_IWARP_RCV_WND_SIZE_DEF_AH_2P, QED_IWARP_RCV_WND_SIZE_DEF_AH_4P} |
| }; |
| |
| int qed_iwarp_setup(struct qed_hwfn *p_hwfn, |
| struct qed_rdma_start_in_params *params) |
| { |
| struct qed_dev *cdev = p_hwfn->cdev; |
| struct qed_iwarp_info *iwarp_info; |
| enum chip_ids chip_id; |
| u32 rcv_wnd_size; |
| |
| iwarp_info = &p_hwfn->p_rdma_info->iwarp; |
| |
| iwarp_info->tcp_flags = QED_IWARP_TS_EN; |
| |
| chip_id = QED_IS_BB(cdev) ? CHIP_BB : CHIP_K2; |
| rcv_wnd_size = (qed_device_num_ports(cdev) == 4) ? |
| qed_iwarp_rcv_wnd_size[chip_id].four_ports : |
| qed_iwarp_rcv_wnd_size[chip_id].two_ports; |
| |
| /* value 0 is used for ilog2(QED_IWARP_RCV_WND_SIZE_MIN) */ |
| iwarp_info->rcv_wnd_scale = ilog2(rcv_wnd_size) - |
| ilog2(QED_IWARP_RCV_WND_SIZE_MIN); |
| iwarp_info->rcv_wnd_size = rcv_wnd_size >> iwarp_info->rcv_wnd_scale; |
| iwarp_info->crc_needed = QED_IWARP_PARAM_CRC_NEEDED; |
| iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; |
| |
| iwarp_info->peer2peer = QED_IWARP_PARAM_P2P; |
| |
| iwarp_info->rtr_type = MPA_RTR_TYPE_ZERO_SEND | |
| MPA_RTR_TYPE_ZERO_WRITE | |
| MPA_RTR_TYPE_ZERO_READ; |
| |
| spin_lock_init(&p_hwfn->p_rdma_info->iwarp.qp_lock); |
| INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_list); |
| INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.listen_list); |
| |
| qed_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP, |
| qed_iwarp_async_event); |
| qed_ooo_setup(p_hwfn); |
| |
| return qed_iwarp_ll2_start(p_hwfn, params, rcv_wnd_size); |
| } |
| |
| int qed_iwarp_stop(struct qed_hwfn *p_hwfn) |
| { |
| int rc; |
| |
| qed_iwarp_free_prealloc_ep(p_hwfn); |
| rc = qed_iwarp_wait_for_all_cids(p_hwfn); |
| if (rc) |
| return rc; |
| |
| return qed_iwarp_ll2_stop(p_hwfn); |
| } |
| |
| static void qed_iwarp_qp_in_error(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, |
| u8 fw_return_code) |
| { |
| struct qed_iwarp_cm_event_params params; |
| |
| qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_ERROR, true); |
| |
| params.event = QED_IWARP_EVENT_CLOSE; |
| params.ep_context = ep; |
| params.cm_info = &ep->cm_info; |
| params.status = (fw_return_code == IWARP_QP_IN_ERROR_GOOD_CLOSE) ? |
| 0 : -ECONNRESET; |
| |
| /* paired with READ_ONCE in destroy_qp */ |
| smp_store_release(&ep->state, QED_IWARP_EP_CLOSED); |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_del(&ep->list_entry); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| ep->event_cb(ep->cb_context, ¶ms); |
| } |
| |
| static void qed_iwarp_exception_received(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, |
| int fw_ret_code) |
| { |
| struct qed_iwarp_cm_event_params params; |
| bool event_cb = false; |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x) fw_ret_code=%d\n", |
| ep->cid, fw_ret_code); |
| |
| switch (fw_ret_code) { |
| case IWARP_EXCEPTION_DETECTED_LLP_CLOSED: |
| params.status = 0; |
| params.event = QED_IWARP_EVENT_DISCONNECT; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_LLP_RESET: |
| params.status = -ECONNRESET; |
| params.event = QED_IWARP_EVENT_DISCONNECT; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_RQ_EMPTY: |
| params.event = QED_IWARP_EVENT_RQ_EMPTY; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_IRQ_FULL: |
| params.event = QED_IWARP_EVENT_IRQ_FULL; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_LLP_TIMEOUT: |
| params.event = QED_IWARP_EVENT_LLP_TIMEOUT; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_REMOTE_PROTECTION_ERROR: |
| params.event = QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_CQ_OVERFLOW: |
| params.event = QED_IWARP_EVENT_CQ_OVERFLOW; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_LOCAL_CATASTROPHIC: |
| params.event = QED_IWARP_EVENT_QP_CATASTROPHIC; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_LOCAL_ACCESS_ERROR: |
| params.event = QED_IWARP_EVENT_LOCAL_ACCESS_ERROR; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_REMOTE_OPERATION_ERROR: |
| params.event = QED_IWARP_EVENT_REMOTE_OPERATION_ERROR; |
| event_cb = true; |
| break; |
| case IWARP_EXCEPTION_DETECTED_TERMINATE_RECEIVED: |
| params.event = QED_IWARP_EVENT_TERMINATE_RECEIVED; |
| event_cb = true; |
| break; |
| default: |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "Unhandled exception received...fw_ret_code=%d\n", |
| fw_ret_code); |
| break; |
| } |
| |
| if (event_cb) { |
| params.ep_context = ep; |
| params.cm_info = &ep->cm_info; |
| ep->event_cb(ep->cb_context, ¶ms); |
| } |
| } |
| |
| static void |
| qed_iwarp_tcp_connect_unsuccessful(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, u8 fw_return_code) |
| { |
| struct qed_iwarp_cm_event_params params; |
| |
| memset(¶ms, 0, sizeof(params)); |
| params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE; |
| params.ep_context = ep; |
| params.cm_info = &ep->cm_info; |
| /* paired with READ_ONCE in destroy_qp */ |
| smp_store_release(&ep->state, QED_IWARP_EP_CLOSED); |
| |
| switch (fw_return_code) { |
| case IWARP_CONN_ERROR_TCP_CONNECT_INVALID_PACKET: |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "%s(0x%x) TCP connect got invalid packet\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); |
| params.status = -ECONNRESET; |
| break; |
| case IWARP_CONN_ERROR_TCP_CONNECTION_RST: |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "%s(0x%x) TCP Connection Reset\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); |
| params.status = -ECONNRESET; |
| break; |
| case IWARP_CONN_ERROR_TCP_CONNECT_TIMEOUT: |
| DP_NOTICE(p_hwfn, "%s(0x%x) TCP timeout\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); |
| params.status = -EBUSY; |
| break; |
| case IWARP_CONN_ERROR_MPA_NOT_SUPPORTED_VER: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA not supported VER\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); |
| params.status = -ECONNREFUSED; |
| break; |
| case IWARP_CONN_ERROR_MPA_INVALID_PACKET: |
| DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); |
| params.status = -ECONNRESET; |
| break; |
| default: |
| DP_ERR(p_hwfn, |
| "%s(0x%x) Unexpected return code tcp connect: %d\n", |
| QED_IWARP_CONNECT_MODE_STRING(ep), |
| ep->tcp_cid, fw_return_code); |
| params.status = -ECONNRESET; |
| break; |
| } |
| |
| if (ep->connect_mode == TCP_CONNECT_PASSIVE) { |
| ep->tcp_cid = QED_IWARP_INVALID_TCP_CID; |
| qed_iwarp_return_ep(p_hwfn, ep); |
| } else { |
| ep->event_cb(ep->cb_context, ¶ms); |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_del(&ep->list_entry); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| } |
| } |
| |
| static void |
| qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn, |
| struct qed_iwarp_ep *ep, u8 fw_return_code) |
| { |
| u8 ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle; |
| |
| if (ep->connect_mode == TCP_CONNECT_PASSIVE) { |
| /* Done with the SYN packet, post back to ll2 rx */ |
| qed_iwarp_ll2_post_rx(p_hwfn, ep->syn, ll2_syn_handle); |
| |
| ep->syn = NULL; |
| |
| /* If connect failed - upper layer doesn't know about it */ |
| if (fw_return_code == RDMA_RETURN_OK) |
| qed_iwarp_mpa_received(p_hwfn, ep); |
| else |
| qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, |
| fw_return_code); |
| } else { |
| if (fw_return_code == RDMA_RETURN_OK) |
| qed_iwarp_mpa_offload(p_hwfn, ep); |
| else |
| qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, |
| fw_return_code); |
| } |
| } |
| |
| static inline bool |
| qed_iwarp_check_ep_ok(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep) |
| { |
| if (!ep || (ep->sig != QED_EP_SIG)) { |
| DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code, |
| __le16 echo, union event_ring_data *data, |
| u8 fw_return_code) |
| { |
| struct qed_rdma_events events = p_hwfn->p_rdma_info->events; |
| struct regpair *fw_handle = &data->rdma_data.async_handle; |
| struct qed_iwarp_ep *ep = NULL; |
| u16 srq_offset; |
| u16 srq_id; |
| u16 cid; |
| |
| ep = (struct qed_iwarp_ep *)(uintptr_t)HILO_64(fw_handle->hi, |
| fw_handle->lo); |
| |
| switch (fw_event_code) { |
| case IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE: |
| /* Async completion after TCP 3-way handshake */ |
| if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) |
| return -EINVAL; |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "EP(0x%x) IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE fw_ret_code=%d\n", |
| ep->tcp_cid, fw_return_code); |
| qed_iwarp_connect_complete(p_hwfn, ep, fw_return_code); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED: |
| if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) |
| return -EINVAL; |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED fw_ret_code=%d\n", |
| ep->cid, fw_return_code); |
| qed_iwarp_exception_received(p_hwfn, ep, fw_return_code); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE: |
| /* Async completion for Close Connection ramrod */ |
| if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) |
| return -EINVAL; |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE fw_ret_code=%d\n", |
| ep->cid, fw_return_code); |
| qed_iwarp_qp_in_error(p_hwfn, ep, fw_return_code); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_ENHANCED_MPA_REPLY_ARRIVED: |
| /* Async event for active side only */ |
| if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) |
| return -EINVAL; |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_MPA_REPLY_ARRIVED fw_ret_code=%d\n", |
| ep->cid, fw_return_code); |
| qed_iwarp_mpa_reply_arrived(p_hwfn, ep); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE: |
| if (!qed_iwarp_check_ep_ok(p_hwfn, ep)) |
| return -EINVAL; |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE fw_ret_code=%d\n", |
| ep->cid, fw_return_code); |
| qed_iwarp_mpa_complete(p_hwfn, ep, fw_return_code); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_CID_CLEANED: |
| cid = (u16)le32_to_cpu(fw_handle->lo); |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, |
| "(0x%x)IWARP_EVENT_TYPE_ASYNC_CID_CLEANED\n", cid); |
| qed_iwarp_cid_cleaned(p_hwfn, cid); |
| |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_SRQ_EMPTY: |
| DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_SRQ_EMPTY\n"); |
| srq_offset = p_hwfn->p_rdma_info->srq_id_offset; |
| /* FW assigns value that is no greater than u16 */ |
| srq_id = ((u16)le32_to_cpu(fw_handle->lo)) - srq_offset; |
| events.affiliated_event(events.context, |
| QED_IWARP_EVENT_SRQ_EMPTY, |
| &srq_id); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_SRQ_LIMIT: |
| DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_SRQ_LIMIT\n"); |
| srq_offset = p_hwfn->p_rdma_info->srq_id_offset; |
| /* FW assigns value that is no greater than u16 */ |
| srq_id = ((u16)le32_to_cpu(fw_handle->lo)) - srq_offset; |
| events.affiliated_event(events.context, |
| QED_IWARP_EVENT_SRQ_LIMIT, |
| &srq_id); |
| break; |
| case IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW: |
| DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW\n"); |
| |
| p_hwfn->p_rdma_info->events.affiliated_event( |
| p_hwfn->p_rdma_info->events.context, |
| QED_IWARP_EVENT_CQ_OVERFLOW, |
| (void *)fw_handle); |
| break; |
| default: |
| DP_ERR(p_hwfn, "Received unexpected async iwarp event %d\n", |
| fw_event_code); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| int |
| qed_iwarp_create_listen(void *rdma_cxt, |
| struct qed_iwarp_listen_in *iparams, |
| struct qed_iwarp_listen_out *oparams) |
| { |
| struct qed_hwfn *p_hwfn = rdma_cxt; |
| struct qed_iwarp_listener *listener; |
| |
| listener = kzalloc(sizeof(*listener), GFP_KERNEL); |
| if (!listener) |
| return -ENOMEM; |
| |
| listener->ip_version = iparams->ip_version; |
| memcpy(listener->ip_addr, iparams->ip_addr, sizeof(listener->ip_addr)); |
| listener->port = iparams->port; |
| listener->vlan = iparams->vlan; |
| |
| listener->event_cb = iparams->event_cb; |
| listener->cb_context = iparams->cb_context; |
| listener->max_backlog = iparams->max_backlog; |
| oparams->handle = listener; |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_add_tail(&listener->list_entry, |
| &p_hwfn->p_rdma_info->iwarp.listen_list); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| DP_VERBOSE(p_hwfn, |
| QED_MSG_RDMA, |
| "callback=%p handle=%p ip=%x:%x:%x:%x port=0x%x vlan=0x%x\n", |
| listener->event_cb, |
| listener, |
| listener->ip_addr[0], |
| listener->ip_addr[1], |
| listener->ip_addr[2], |
| listener->ip_addr[3], listener->port, listener->vlan); |
| |
| return 0; |
| } |
| |
| int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle) |
| { |
| struct qed_iwarp_listener *listener = handle; |
| struct qed_hwfn *p_hwfn = rdma_cxt; |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "handle=%p\n", handle); |
| |
| spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| list_del(&listener->list_entry); |
| spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock); |
| |
| kfree(listener); |
| |
| return 0; |
| } |
| |
| int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams) |
| { |
| struct qed_hwfn *p_hwfn = rdma_cxt; |
| struct qed_sp_init_data init_data; |
| struct qed_spq_entry *p_ent; |
| struct qed_iwarp_ep *ep; |
| struct qed_rdma_qp *qp; |
| int rc; |
| |
| ep = iparams->ep_context; |
| if (!ep) { |
| DP_ERR(p_hwfn, "Ep Context receive in send_rtr is NULL\n"); |
| return -EINVAL; |
| } |
| |
| qp = ep->qp; |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", |
| qp->icid, ep->tcp_cid); |
| |
| memset(&init_data, 0, sizeof(init_data)); |
| init_data.cid = qp->icid; |
| init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; |
| init_data.comp_mode = QED_SPQ_MODE_CB; |
| |
| rc = qed_sp_init_request(p_hwfn, &p_ent, |
| IWARP_RAMROD_CMD_ID_MPA_OFFLOAD_SEND_RTR, |
| PROTOCOLID_IWARP, &init_data); |
| |
| if (rc) |
| return rc; |
| |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| |
| DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = 0x%x\n", rc); |
| |
| return rc; |
| } |
| |
| void |
| qed_iwarp_query_qp(struct qed_rdma_qp *qp, |
| struct qed_rdma_query_qp_out_params *out_params) |
| { |
| out_params->state = qed_iwarp2roce_state(qp->iwarp_state); |
| } |