/* * Copyright (c) 2018-2019 Cavium, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * File : ecore_iwarp.c */ #include __FBSDID("$FreeBSD$"); #include "bcm_osal.h" #include "ecore.h" #include "ecore_status.h" #include "ecore_sp_commands.h" #include "ecore_cxt.h" #include "ecore_rdma.h" #include "reg_addr.h" #include "ecore_hw.h" #include "ecore_hsi_iwarp.h" #include "ecore_ll2.h" #include "ecore_ooo.h" #ifndef LINUX_REMOVE #include "ecore_tcp_ip.h" #endif #ifdef _NTDDK_ #pragma warning(push) #pragma warning(disable : 28123) #pragma warning(disable : 28167) #endif /* Default values used for MPA Rev 1 */ #define ECORE_IWARP_ORD_DEFAULT 32 #define ECORE_IWARP_IRD_DEFAULT 32 #define ECORE_IWARP_MAX_FW_MSS 4120 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 ECORE_IWARP_INVALID_TCP_CID 0xffffffff /* How many times fin will be sent before FW aborts and send RST */ #define ECORE_IWARP_MAX_FIN_RT_DEFAULT 2 #define ECORE_IWARP_RCV_WND_SIZE_MIN (0xffff) /* INTERNAL: These numbers are derived from BRB buffer sizes to obtain optimal performance */ #define ECORE_IWARP_RCV_WND_SIZE_BB_DEF_2_PORTS (200*1024) #define ECORE_IWARP_RCV_WND_SIZE_BB_DEF_4_PORTS (100*1024) #define ECORE_IWARP_RCV_WND_SIZE_AH_DEF_2_PORTS (150*1024) #define ECORE_IWARP_RCV_WND_SIZE_AH_DEF_4_PORTS (90*1024) #define ECORE_IWARP_MAX_WND_SCALE (14) /* Timestamp header is the length of the timestamp option (10): * kind:8 bit, length:8 bit, timestamp:32 bit, ack: 32bit * rounded up to a multiple of 4 */ #define TIMESTAMP_HEADER_SIZE (12) static enum _ecore_status_t ecore_iwarp_async_event(struct ecore_hwfn *p_hwfn, u8 fw_event_code, u16 OSAL_UNUSED echo, union event_ring_data *data, u8 fw_return_code); static enum _ecore_status_t ecore_iwarp_empty_ramrod(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_listener *listener); static OSAL_INLINE struct ecore_iwarp_fpdu * ecore_iwarp_get_curr_fpdu(struct ecore_hwfn *p_hwfn, u16 cid); /* Override devinfo with iWARP specific values */ void ecore_iwarp_init_devinfo(struct ecore_hwfn *p_hwfn) { struct ecore_rdma_device *dev = p_hwfn->p_rdma_info->dev; dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE; dev->max_qp = OSAL_MIN_T(u64, IWARP_MAX_QPS, p_hwfn->p_rdma_info->num_qps) - ECORE_IWARP_PREALLOC_CNT; dev->max_cq = dev->max_qp; dev->max_qp_resp_rd_atomic_resc = ECORE_IWARP_IRD_DEFAULT; dev->max_qp_req_rd_atomic_resc = ECORE_IWARP_ORD_DEFAULT; } enum _ecore_status_t ecore_iwarp_init_hw(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt) { p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_TCP; ecore_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 1); p_hwfn->b_rdma_enabled_in_prs = true; return 0; } void ecore_iwarp_init_fw_ramrod(struct ecore_hwfn *p_hwfn, struct iwarp_init_func_ramrod_data *p_ramrod) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ooo handle = %d\n", p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle); p_ramrod->iwarp.ll2_ooo_q_index = p_hwfn->hw_info.resc_start[ECORE_LL2_QUEUE] + p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle; p_ramrod->tcp.max_fin_rt = ECORE_IWARP_MAX_FIN_RT_DEFAULT; return; } static enum _ecore_status_t ecore_iwarp_alloc_cid(struct ecore_hwfn *p_hwfn, u32 *cid) { enum _ecore_status_t rc; OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); rc = ecore_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); *cid += ecore_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); if (rc != ECORE_SUCCESS) { DP_NOTICE(p_hwfn, false, "Failed in allocating iwarp cid\n"); return rc; } rc = ecore_cxt_dynamic_ilt_alloc(p_hwfn, ECORE_ELEM_CXT, *cid); if (rc != ECORE_SUCCESS) { OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); *cid -= ecore_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, *cid); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); } return rc; } static void ecore_iwarp_set_tcp_cid(struct ecore_hwfn *p_hwfn, u32 cid) { cid -= ecore_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); ecore_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid); OSAL_SPIN_UNLOCK(&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 alloacted. They are preallocated * to ensure that we won't need to allocate memory during syn processing */ static enum _ecore_status_t ecore_iwarp_alloc_tcp_cid(struct ecore_hwfn *p_hwfn, u32 *cid) { enum _ecore_status_t rc; OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); rc = ecore_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); *cid += ecore_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); if (rc != ECORE_SUCCESS) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "can't allocate iwarp tcp cid max-count=%d\n", p_hwfn->p_rdma_info->tcp_cid_map.max_count); *cid = ECORE_IWARP_INVALID_TCP_CID; } return rc; } /* 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 ecore_iwarp_cid_cleaned(struct ecore_hwfn *p_hwfn, u32 cid) { cid -= ecore_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); if (cid < ECORE_IWARP_PREALLOC_CNT) { ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid); } else { ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); } OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); } enum _ecore_status_t ecore_iwarp_create_qp(struct ecore_hwfn *p_hwfn, struct ecore_rdma_qp *qp, struct ecore_rdma_create_qp_out_params *out_params) { struct iwarp_create_qp_ramrod_data *p_ramrod; struct ecore_sp_init_data init_data; struct ecore_spq_entry *p_ent; enum _ecore_status_t rc; u16 physical_queue; u32 cid; qp->shared_queue = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &qp->shared_queue_phys_addr, IWARP_SHARED_QUEUE_PAGE_SIZE); if (!qp->shared_queue) { DP_NOTICE(p_hwfn, false, "ecore iwarp create qp failed: cannot allocate memory (shared queue).\n"); return ECORE_NOMEM; } else { 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 = ecore_iwarp_alloc_cid(p_hwfn, &cid); if (rc != ECORE_SUCCESS) goto err1; qp->icid = (u16)cid; OSAL_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 = ECORE_SPQ_MODE_EBLOCK; rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_CREATE_QP, PROTOCOLID_IWARP, &init_data); if (rc != ECORE_SUCCESS) return rc; 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 = qp->pd; p_ramrod->sq_num_pages = qp->sq_num_pages; p_ramrod->rq_num_pages = qp->rq_num_pages; p_ramrod->qp_handle_for_cqe.hi = OSAL_CPU_TO_LE32(qp->qp_handle.hi); p_ramrod->qp_handle_for_cqe.lo = OSAL_CPU_TO_LE32(qp->qp_handle.lo); p_ramrod->cq_cid_for_sq = OSAL_CPU_TO_LE32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id); p_ramrod->cq_cid_for_rq = OSAL_CPU_TO_LE32((p_hwfn->hw_info.opaque_fid << 16) | qp->rq_cq_id); p_ramrod->dpi = OSAL_CPU_TO_LE16(qp->dpi); physical_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); p_ramrod->physical_q0 = OSAL_CPU_TO_LE16(physical_queue); physical_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); p_ramrod->physical_q1 = OSAL_CPU_TO_LE16(physical_queue); rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); if (rc != ECORE_SUCCESS) goto err1; return rc; err1: OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, qp->shared_queue, qp->shared_queue_phys_addr, IWARP_SHARED_QUEUE_PAGE_SIZE); return rc; } static enum _ecore_status_t ecore_iwarp_modify_fw(struct ecore_hwfn *p_hwfn, struct ecore_rdma_qp *qp) { struct iwarp_modify_qp_ramrod_data *p_ramrod; struct ecore_sp_init_data init_data; struct ecore_spq_entry *p_ent; enum _ecore_status_t rc; /* Get SPQ entry */ OSAL_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 = ECORE_SPQ_MODE_EBLOCK; rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_MODIFY_QP, p_hwfn->p_rdma_info->proto, &init_data); if (rc != ECORE_SUCCESS) return rc; p_ramrod = &p_ent->ramrod.iwarp_modify_qp; SET_FIELD(p_ramrod->flags, IWARP_MODIFY_QP_RAMROD_DATA_STATE_TRANS_EN, 0x1); if (qp->iwarp_state == ECORE_IWARP_QP_STATE_CLOSING) p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_CLOSING; else p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_ERROR; rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x)rc=%d\n", qp->icid, rc); return rc; } enum ecore_iwarp_qp_state ecore_roce2iwarp_state(enum ecore_roce_qp_state state) { switch (state) { case ECORE_ROCE_QP_STATE_RESET: case ECORE_ROCE_QP_STATE_INIT: case ECORE_ROCE_QP_STATE_RTR: return ECORE_IWARP_QP_STATE_IDLE; case ECORE_ROCE_QP_STATE_RTS: return ECORE_IWARP_QP_STATE_RTS; case ECORE_ROCE_QP_STATE_SQD: return ECORE_IWARP_QP_STATE_CLOSING; case ECORE_ROCE_QP_STATE_ERR: return ECORE_IWARP_QP_STATE_ERROR; case ECORE_ROCE_QP_STATE_SQE: return ECORE_IWARP_QP_STATE_TERMINATE; } return ECORE_IWARP_QP_STATE_ERROR; } static enum ecore_roce_qp_state ecore_iwarp2roce_state(enum ecore_iwarp_qp_state state) { switch (state) { case ECORE_IWARP_QP_STATE_IDLE: return ECORE_ROCE_QP_STATE_INIT; case ECORE_IWARP_QP_STATE_RTS: return ECORE_ROCE_QP_STATE_RTS; case ECORE_IWARP_QP_STATE_TERMINATE: return ECORE_ROCE_QP_STATE_SQE; case ECORE_IWARP_QP_STATE_CLOSING: return ECORE_ROCE_QP_STATE_SQD; case ECORE_IWARP_QP_STATE_ERROR: return ECORE_ROCE_QP_STATE_ERR; } return ECORE_ROCE_QP_STATE_ERR; } const char *iwarp_state_names[] = { "IDLE", "RTS", "TERMINATE", "CLOSING", "ERROR", }; enum _ecore_status_t ecore_iwarp_modify_qp(struct ecore_hwfn *p_hwfn, struct ecore_rdma_qp *qp, enum ecore_iwarp_qp_state new_state, bool internal) { enum ecore_iwarp_qp_state prev_iw_state; enum _ecore_status_t rc = 0; bool modify_fw = false; /* modify QP can be called from upper-layer or as a result of async * RST/FIN... therefore need to protect */ OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.qp_lock); prev_iw_state = qp->iwarp_state; if (prev_iw_state == new_state) { OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.qp_lock); return ECORE_SUCCESS; } switch (prev_iw_state) { case ECORE_IWARP_QP_STATE_IDLE: switch (new_state) { case ECORE_IWARP_QP_STATE_RTS: qp->iwarp_state = ECORE_IWARP_QP_STATE_RTS; break; case ECORE_IWARP_QP_STATE_ERROR: qp->iwarp_state = ECORE_IWARP_QP_STATE_ERROR; if (!internal) modify_fw = true; break; default: break; } break; case ECORE_IWARP_QP_STATE_RTS: switch (new_state) { case ECORE_IWARP_QP_STATE_CLOSING: if (!internal) modify_fw = true; qp->iwarp_state = ECORE_IWARP_QP_STATE_CLOSING; break; case ECORE_IWARP_QP_STATE_ERROR: if (!internal) modify_fw = true; qp->iwarp_state = ECORE_IWARP_QP_STATE_ERROR; break; default: break; } break; case ECORE_IWARP_QP_STATE_ERROR: switch (new_state) { case ECORE_IWARP_QP_STATE_IDLE: /* TODO: destroy flow -> need to destroy EP&QP */ qp->iwarp_state = new_state; break; case ECORE_IWARP_QP_STATE_CLOSING: /* could happen due to race... do nothing.... */ break; default: rc = ECORE_INVAL; } break; case ECORE_IWARP_QP_STATE_TERMINATE: case ECORE_IWARP_QP_STATE_CLOSING: qp->iwarp_state = new_state; break; default: break; } DP_VERBOSE(p_hwfn, ECORE_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" : " "); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.qp_lock); if (modify_fw) ecore_iwarp_modify_fw(p_hwfn, qp); return rc; } enum _ecore_status_t ecore_iwarp_fw_destroy(struct ecore_hwfn *p_hwfn, struct ecore_rdma_qp *qp) { struct ecore_sp_init_data init_data; struct ecore_spq_entry *p_ent; enum _ecore_status_t rc; /* Get SPQ entry */ OSAL_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 = ECORE_SPQ_MODE_EBLOCK; rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_DESTROY_QP, p_hwfn->p_rdma_info->proto, &init_data); if (rc != ECORE_SUCCESS) return rc; rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) rc = %d\n", qp->icid, rc); return rc; } static void ecore_iwarp_destroy_ep(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep, bool remove_from_active_list) { OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, ep->ep_buffer_virt, ep->ep_buffer_phys, sizeof(*ep->ep_buffer_virt)); if (remove_from_active_list) { OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); } if (ep->qp) ep->qp->ep = OSAL_NULL; OSAL_FREE(p_hwfn->p_dev, ep); } enum _ecore_status_t ecore_iwarp_destroy_qp(struct ecore_hwfn *p_hwfn, struct ecore_rdma_qp *qp) { enum _ecore_status_t rc = ECORE_SUCCESS; struct ecore_iwarp_ep *ep = qp->ep; struct ecore_iwarp_fpdu *fpdu; int wait_count = 0; fpdu = ecore_iwarp_get_curr_fpdu(p_hwfn, qp->icid); if (fpdu && fpdu->incomplete_bytes) DP_NOTICE(p_hwfn, false, "Pending Partial fpdu with incomplete bytes=%d\n", fpdu->incomplete_bytes); if (qp->iwarp_state != ECORE_IWARP_QP_STATE_ERROR) { rc = ecore_iwarp_modify_qp(p_hwfn, qp, ECORE_IWARP_QP_STATE_ERROR, false); if (rc != ECORE_SUCCESS) return rc; } /* Make sure ep is closed before returning and freeing memory. */ if (ep) { while (ep->state != ECORE_IWARP_EP_CLOSED) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Waiting for ep->state to be closed...state=%x\n", ep->state); OSAL_MSLEEP(100); if (wait_count++ > 200) { DP_NOTICE(p_hwfn, false, "ep state close timeout state=%x\n", ep->state); break; } } ecore_iwarp_destroy_ep(p_hwfn, ep, false); } rc = ecore_iwarp_fw_destroy(p_hwfn, qp); if (qp->shared_queue) OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, qp->shared_queue, qp->shared_queue_phys_addr, IWARP_SHARED_QUEUE_PAGE_SIZE); return rc; } static enum _ecore_status_t ecore_iwarp_create_ep(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep **ep_out) { struct ecore_iwarp_ep *ep; enum _ecore_status_t rc; ep = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*ep)); if (!ep) { DP_NOTICE(p_hwfn, false, "ecore create ep failed: cannot allocate memory (ep). rc = %d\n", ECORE_NOMEM); return ECORE_NOMEM; } ep->state = ECORE_IWARP_EP_INIT; /* ep_buffer is allocated once and is structured as follows: * [MAX_PRIV_DATA_LEN][MAX_PRIV_DATA_LEN][union async_output] * We could have allocated this in three calls but since all together * it is less than a page, we do one allocation and initialize pointers * accordingly */ ep->ep_buffer_virt = OSAL_DMA_ALLOC_COHERENT( p_hwfn->p_dev, &ep->ep_buffer_phys, sizeof(*ep->ep_buffer_virt)); if (!ep->ep_buffer_virt) { DP_NOTICE(p_hwfn, false, "ecore create ep failed: cannot allocate memory (ulp buffer). rc = %d\n", ECORE_NOMEM); rc = ECORE_NOMEM; goto err; } ep->sig = 0xdeadbeef; *ep_out = ep; return ECORE_SUCCESS; err: OSAL_FREE(p_hwfn->p_dev, ep); return rc; } static void ecore_iwarp_print_tcp_ramrod(struct ecore_hwfn *p_hwfn, struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, ">>> PRINT TCP RAMROD\n"); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_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); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_mac=%x %x %x\n", p_tcp_ramrod->tcp.remote_mac_addr_lo, p_tcp_ramrod->tcp.remote_mac_addr_mid, p_tcp_ramrod->tcp.remote_mac_addr_hi); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "vlan_id=%x\n", p_tcp_ramrod->tcp.vlan_id); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "flags=%x\n", p_tcp_ramrod->tcp.flags); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ip_version=%x\n", p_tcp_ramrod->tcp.ip_version); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_ip=%x.%x.%x.%x\n", p_tcp_ramrod->tcp.local_ip[0], p_tcp_ramrod->tcp.local_ip[1], p_tcp_ramrod->tcp.local_ip[2], p_tcp_ramrod->tcp.local_ip[3]); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_ip=%x.%x.%x.%x\n", p_tcp_ramrod->tcp.remote_ip[0], p_tcp_ramrod->tcp.remote_ip[1], p_tcp_ramrod->tcp.remote_ip[2], p_tcp_ramrod->tcp.remote_ip[3]); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "flow_label=%x\n", p_tcp_ramrod->tcp.flow_label); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ttl=%x\n", p_tcp_ramrod->tcp.ttl); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "tos_or_tc=%x\n", p_tcp_ramrod->tcp.tos_or_tc); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_port=%x\n", p_tcp_ramrod->tcp.local_port); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_port=%x\n", p_tcp_ramrod->tcp.remote_port); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "mss=%x\n", p_tcp_ramrod->tcp.mss); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "rcv_wnd_scale=%x\n", p_tcp_ramrod->tcp.rcv_wnd_scale); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "connect_mode=%x\n", p_tcp_ramrod->tcp.connect_mode); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "syn_ip_payload_length=%x\n", p_tcp_ramrod->tcp.syn_ip_payload_length); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "syn_phy_addr_lo=%x\n", p_tcp_ramrod->tcp.syn_phy_addr_lo); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "syn_phy_addr_hi=%x\n", p_tcp_ramrod->tcp.syn_phy_addr_hi); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "<<p_rdma_info->iwarp; struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod; struct ecore_sp_init_data init_data; struct ecore_spq_entry *p_ent; dma_addr_t async_output_phys; dma_addr_t in_pdata_phys; enum _ecore_status_t rc; u16 physical_q; u8 tcp_flags; int i; OSAL_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 = ECORE_SPQ_MODE_CB; } else { init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; } rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_TCP_OFFLOAD, PROTOCOLID_IWARP, &init_data); if (rc != ECORE_SUCCESS) return rc; p_tcp_ramrod = &p_ent->ramrod.iwarp_tcp_offload; /* Point to the "second half" of the ulp buffer */ in_pdata_phys = ep->ep_buffer_phys + OFFSETOF(struct ecore_iwarp_ep_memory, in_pdata); p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr.hi = DMA_HI_LE(in_pdata_phys); p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr.lo = DMA_LO_LE(in_pdata_phys); p_tcp_ramrod->iwarp.incoming_ulp_buffer.len = OSAL_CPU_TO_LE16(sizeof(ep->ep_buffer_virt->in_pdata)); async_output_phys = ep->ep_buffer_phys + OFFSETOF(struct ecore_iwarp_ep_memory, async_output); p_tcp_ramrod->iwarp.async_eqe_output_buf.hi = DMA_HI_LE(async_output_phys); p_tcp_ramrod->iwarp.async_eqe_output_buf.lo = DMA_LO_LE(async_output_phys); p_tcp_ramrod->iwarp.handle_for_async.hi = OSAL_CPU_TO_LE32(PTR_HI(ep)); p_tcp_ramrod->iwarp.handle_for_async.lo = OSAL_CPU_TO_LE32(PTR_LO(ep)); physical_q = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); p_tcp_ramrod->iwarp.physical_q0 = OSAL_CPU_TO_LE16(physical_q); physical_q = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); p_tcp_ramrod->iwarp.physical_q1 = OSAL_CPU_TO_LE16(physical_q); p_tcp_ramrod->iwarp.mpa_mode = iwarp_info->mpa_rev; ecore_set_fw_mac_addr(&p_tcp_ramrod->tcp.remote_mac_addr_hi, &p_tcp_ramrod->tcp.remote_mac_addr_mid, &p_tcp_ramrod->tcp.remote_mac_addr_lo, ep->remote_mac_addr); ecore_set_fw_mac_addr(&p_tcp_ramrod->tcp.local_mac_addr_hi, &p_tcp_ramrod->tcp.local_mac_addr_mid, &p_tcp_ramrod->tcp.local_mac_addr_lo, ep->local_mac_addr); p_tcp_ramrod->tcp.vlan_id = OSAL_CPU_TO_LE16(ep->cm_info.vlan); tcp_flags = p_hwfn->p_rdma_info->iwarp.tcp_flags; p_tcp_ramrod->tcp.flags = 0; SET_FIELD(p_tcp_ramrod->tcp.flags, TCP_OFFLOAD_PARAMS_OPT2_TS_EN, !!(tcp_flags & ECORE_IWARP_TS_EN)); SET_FIELD(p_tcp_ramrod->tcp.flags, TCP_OFFLOAD_PARAMS_OPT2_DA_EN, !!(tcp_flags & ECORE_IWARP_DA_EN)); p_tcp_ramrod->tcp.ip_version = ep->cm_info.ip_version; for (i = 0; i < 4; i++) { p_tcp_ramrod->tcp.remote_ip[i] = OSAL_CPU_TO_LE32(ep->cm_info.remote_ip[i]); p_tcp_ramrod->tcp.local_ip[i] = OSAL_CPU_TO_LE32(ep->cm_info.local_ip[i]); } p_tcp_ramrod->tcp.remote_port = OSAL_CPU_TO_LE16(ep->cm_info.remote_port); p_tcp_ramrod->tcp.local_port = OSAL_CPU_TO_LE16(ep->cm_info.local_port); p_tcp_ramrod->tcp.mss = OSAL_CPU_TO_LE16(ep->mss); p_tcp_ramrod->tcp.flow_label = 0; p_tcp_ramrod->tcp.ttl = 0x40; p_tcp_ramrod->tcp.tos_or_tc = 0; p_tcp_ramrod->tcp.max_rt_time = ECORE_IWARP_DEF_MAX_RT_TIME; p_tcp_ramrod->tcp.cwnd = ECORE_IWARP_DEF_CWND_FACTOR * p_tcp_ramrod->tcp.mss; p_tcp_ramrod->tcp.ka_max_probe_cnt = ECORE_IWARP_DEF_KA_MAX_PROBE_CNT; p_tcp_ramrod->tcp.ka_timeout = ECORE_IWARP_DEF_KA_TIMEOUT; p_tcp_ramrod->tcp.ka_interval = ECORE_IWARP_DEF_KA_INTERVAL; p_tcp_ramrod->tcp.rcv_wnd_scale = (u8)p_hwfn->p_rdma_info->iwarp.rcv_wnd_scale; p_tcp_ramrod->tcp.connect_mode = ep->connect_mode; if (ep->connect_mode == TCP_CONNECT_PASSIVE) { p_tcp_ramrod->tcp.syn_ip_payload_length = OSAL_CPU_TO_LE16(ep->syn_ip_payload_length); p_tcp_ramrod->tcp.syn_phy_addr_hi = DMA_HI_LE(ep->syn_phy_addr); p_tcp_ramrod->tcp.syn_phy_addr_lo = DMA_LO_LE(ep->syn_phy_addr); } ecore_iwarp_print_tcp_ramrod(p_hwfn, p_tcp_ramrod); rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "EP(0x%x) Offload completed rc=%d\n" , ep->tcp_cid, rc); return rc; } /* This function should be called after IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE * is received. it will be called from the dpc context. */ static enum _ecore_status_t ecore_iwarp_mpa_offload(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep) { struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod; struct ecore_iwarp_info *iwarp_info; struct ecore_sp_init_data init_data; struct ecore_spq_entry *p_ent; dma_addr_t async_output_phys; dma_addr_t out_pdata_phys; dma_addr_t in_pdata_phys; struct ecore_rdma_qp *qp; bool reject; enum _ecore_status_t rc; if (!ep) return ECORE_INVAL; qp = ep->qp; reject = (qp == OSAL_NULL); OSAL_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 || !ep->event_cb) init_data.comp_mode = ECORE_SPQ_MODE_CB; else init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_MPA_OFFLOAD, PROTOCOLID_IWARP, &init_data); if (rc != ECORE_SUCCESS) return rc; p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload; out_pdata_phys = ep->ep_buffer_phys + OFFSETOF(struct ecore_iwarp_ep_memory, out_pdata); p_mpa_ramrod->common.outgoing_ulp_buffer.addr.hi = DMA_HI_LE(out_pdata_phys); p_mpa_ramrod->common.outgoing_ulp_buffer.addr.lo = DMA_LO_LE(out_pdata_phys); p_mpa_ramrod->common.outgoing_ulp_buffer.len = ep->cm_info.private_data_len; p_mpa_ramrod->common.crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed; p_mpa_ramrod->common.out_rq.ord = ep->cm_info.ord; p_mpa_ramrod->common.out_rq.ird = ep->cm_info.ird; p_mpa_ramrod->tcp_cid = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid; in_pdata_phys = ep->ep_buffer_phys + OFFSETOF(struct ecore_iwarp_ep_memory, in_pdata); p_mpa_ramrod->tcp_connect_side = ep->connect_mode; p_mpa_ramrod->incoming_ulp_buffer.addr.hi = DMA_HI_LE(in_pdata_phys); p_mpa_ramrod->incoming_ulp_buffer.addr.lo = DMA_LO_LE(in_pdata_phys); p_mpa_ramrod->incoming_ulp_buffer.len = OSAL_CPU_TO_LE16(sizeof(ep->ep_buffer_virt->in_pdata)); async_output_phys = ep->ep_buffer_phys + OFFSETOF(struct ecore_iwarp_ep_memory, async_output); p_mpa_ramrod->async_eqe_output_buf.hi = DMA_HI_LE(async_output_phys); p_mpa_ramrod->async_eqe_output_buf.lo = DMA_LO_LE(async_output_phys); p_mpa_ramrod->handle_for_async.hi = OSAL_CPU_TO_LE32(PTR_HI(ep)); p_mpa_ramrod->handle_for_async.lo = OSAL_CPU_TO_LE32(PTR_LO(ep)); if (!reject) { p_mpa_ramrod->shared_queue_addr.hi = DMA_HI_LE(qp->shared_queue_phys_addr); p_mpa_ramrod->shared_queue_addr.lo = DMA_LO_LE(qp->shared_queue_phys_addr); p_mpa_ramrod->stats_counter_id = RESC_START(p_hwfn, ECORE_RDMA_STATS_QUEUE) + qp->stats_queue; } else { p_mpa_ramrod->common.reject = 1; } iwarp_info = &p_hwfn->p_rdma_info->iwarp; p_mpa_ramrod->rcv_wnd = 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 = ECORE_IWARP_EP_MPA_OFFLOADED; rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); if (!reject) ep->cid = qp->icid; /* Now they're migrated. */ DP_VERBOSE(p_hwfn, ECORE_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 ecore_iwarp_mpa_received(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep) { struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; struct ecore_iwarp_cm_event_params params; struct mpa_v2_hdr *mpa_v2_params; union async_output *async_data; u16 mpa_ord, mpa_ird; u8 mpa_hdr_size = 0; u8 mpa_rev; async_data = &ep->ep_buffer_virt->async_output; mpa_rev = async_data->mpa_request.mpa_handshake_mode; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "private_data_len=%x handshake_mode=%x private_data=(%x)\n", async_data->mpa_request.ulp_data_len, mpa_rev, *((u32 *)((u8 *)ep->ep_buffer_virt->in_pdata))); if (ep->listener->state > ECORE_IWARP_LISTENER_STATE_UNPAUSE) { /* MPA reject initiated by ecore */ OSAL_MEMSET(&ep->cm_info, 0, sizeof(ep->cm_info)); ep->event_cb = OSAL_NULL; ecore_iwarp_mpa_offload(p_hwfn, ep); return; } if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { if (iwarp_info->mpa_rev == MPA_NEGOTIATION_TYPE_BASIC) { DP_ERR(p_hwfn, "MPA_NEGOTIATE Received MPA rev 2 on driver supporting only MPA rev 1\n"); /* MPA_REV2 ToDo: close the tcp connection. */ return; } /* Read ord/ird values from private data buffer */ mpa_v2_params = (struct mpa_v2_hdr *)(ep->ep_buffer_virt->in_pdata); mpa_hdr_size = sizeof(*mpa_v2_params); mpa_ord = ntohs(mpa_v2_params->ord); mpa_ird = ntohs(mpa_v2_params->ird); /* Temprary store in cm_info incoming ord/ird requested, later * replace with negotiated value during accept */ ep->cm_info.ord = (u8)OSAL_MIN_T(u16, (mpa_ord & MPA_V2_IRD_ORD_MASK), ECORE_IWARP_ORD_DEFAULT); ep->cm_info.ird = (u8)OSAL_MIN_T(u16, (mpa_ird & MPA_V2_IRD_ORD_MASK), ECORE_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; /* prioritize write over send and read */ if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE) ep->rtr_type = MPA_RTR_TYPE_ZERO_WRITE; } ep->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; } else { ep->cm_info.ord = ECORE_IWARP_ORD_DEFAULT; ep->cm_info.ird = ECORE_IWARP_IRD_DEFAULT; ep->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC; } DP_VERBOSE(p_hwfn, ECORE_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; ep->cm_info.private_data_len = async_data->mpa_request.ulp_data_len - mpa_hdr_size; params.event = ECORE_IWARP_EVENT_MPA_REQUEST; params.cm_info = &ep->cm_info; params.ep_context = ep; params.status = ECORE_SUCCESS; ep->state = ECORE_IWARP_EP_MPA_REQ_RCVD; ep->event_cb(ep->cb_context, ¶ms); } static void ecore_iwarp_move_to_ep_list(struct ecore_hwfn *p_hwfn, osal_list_t *list, struct ecore_iwarp_ep *ep) { OSAL_SPIN_LOCK(&ep->listener->lock); OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, &ep->listener->ep_list); OSAL_SPIN_UNLOCK(&ep->listener->lock); OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_PUSH_TAIL(&ep->list_entry, list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); } static void ecore_iwarp_return_ep(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep) { ep->state = ECORE_IWARP_EP_INIT; if (ep->qp) ep->qp->ep = OSAL_NULL; ep->qp = OSAL_NULL; OSAL_MEMSET(&ep->cm_info, 0, sizeof(ep->cm_info)); if (ep->tcp_cid == ECORE_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 */ ecore_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); } ecore_iwarp_move_to_ep_list(p_hwfn, &p_hwfn->p_rdma_info->iwarp.ep_free_list, ep); } static void ecore_iwarp_parse_private_data(struct ecore_hwfn *p_hwfn, struct ecore_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; if (MPA_REV2(p_hwfn->p_rdma_info->iwarp.mpa_rev)) { mpa_v2_params = (struct mpa_v2_hdr *) ((u8 *)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); } /* else: Ord / Ird already configured */ async_data = &ep->ep_buffer_virt->async_output; ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_data_size; ep->cm_info.private_data_len = async_data->mpa_response.ulp_data_len - mpa_data_size; } static void ecore_iwarp_mpa_reply_arrived(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep) { struct ecore_iwarp_cm_event_params params; if (ep->connect_mode == TCP_CONNECT_PASSIVE) { DP_NOTICE(p_hwfn, true, "MPA reply event not expected on passive side!\n"); return; } params.event = ECORE_IWARP_EVENT_ACTIVE_MPA_REPLY; ecore_iwarp_parse_private_data(p_hwfn, ep); DP_VERBOSE(p_hwfn, ECORE_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 = ECORE_SUCCESS; ep->mpa_reply_processed = true; ep->event_cb(ep->cb_context, ¶ms); } #define ECORE_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 ecore_iwarp_mpa_complete(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep, u8 fw_return_code) { struct ecore_iwarp_cm_event_params params; if (ep->connect_mode == TCP_CONNECT_ACTIVE) params.event = ECORE_IWARP_EVENT_ACTIVE_COMPLETE; else params.event = ECORE_IWARP_EVENT_PASSIVE_COMPLETE; if (ep->connect_mode == TCP_CONNECT_ACTIVE && !ep->mpa_reply_processed) { ecore_iwarp_parse_private_data(p_hwfn, ep); } DP_VERBOSE(p_hwfn, ECORE_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; if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && (ep->state != ECORE_IWARP_EP_MPA_OFFLOADED)) { /* This is a FW bug. Shouldn't get complete without offload */ DP_NOTICE(p_hwfn, false, "%s(0x%x) ERROR: Got MPA complete without MPA offload fw_return_code=%d ep->state=%d\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid, fw_return_code, ep->state); ep->state = ECORE_IWARP_EP_CLOSED; return; } if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && (ep->state == ECORE_IWARP_EP_ABORTING)) return; ep->state = ECORE_IWARP_EP_CLOSED; 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; ecore_iwarp_modify_qp(p_hwfn, ep->qp, ECORE_IWARP_QP_STATE_RTS, 1); ep->state = ECORE_IWARP_EP_ESTABLISHED; params.status = ECORE_SUCCESS; break; case IWARP_CONN_ERROR_MPA_TIMEOUT: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA timeout\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_TIMEOUT; break; case IWARP_CONN_ERROR_MPA_ERROR_REJECT: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Reject\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_RST: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA reset(tcp cid: 0x%x)\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid, ep->tcp_cid); params.status = ECORE_CONN_RESET; break; case IWARP_CONN_ERROR_MPA_FIN: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA received FIN\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_INSUF_IRD: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA insufficient ird\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_RTR_MISMATCH: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA RTR MISMATCH\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_INVALID_PACKET: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Invalid Packet\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_LOCAL_ERROR: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Local Error\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_TERMINATE: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA TERMINATE\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); params.status = ECORE_CONN_REFUSED; break; default: params.status = ECORE_CONN_RESET; break; } if (ep->event_cb) 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, otherwise we wait for QP to release it. * Since we add an element in accept instead of this one. in anycase * we need to remove it from the ep_list (active connections)... */ if (fw_return_code != RDMA_RETURN_OK) { ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && (ep->qp == OSAL_NULL)) { /* Rejected */ ecore_iwarp_return_ep(p_hwfn, ep); } else { OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_REMOVE_ENTRY( &ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); } } } static void ecore_iwarp_mpa_v2_set_private(struct ecore_hwfn *p_hwfn, struct ecore_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, ECORE_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)); } } enum _ecore_status_t ecore_iwarp_connect(void *rdma_cxt, struct ecore_iwarp_connect_in *iparams, struct ecore_iwarp_connect_out *oparams) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_iwarp_info *iwarp_info; struct ecore_iwarp_ep *ep; enum _ecore_status_t rc; u8 mpa_data_size = 0; u8 ts_hdr_size = 0; u32 cid; if ((iparams->cm_info.ord > ECORE_IWARP_ORD_DEFAULT) || (iparams->cm_info.ird > ECORE_IWARP_IRD_DEFAULT)) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", iparams->qp->icid, iparams->cm_info.ord, iparams->cm_info.ird); return ECORE_INVAL; } iwarp_info = &p_hwfn->p_rdma_info->iwarp; /* Allocate ep object */ rc = ecore_iwarp_alloc_cid(p_hwfn, &cid); if (rc != ECORE_SUCCESS) return rc; if (iparams->qp->ep == OSAL_NULL) { rc = ecore_iwarp_create_ep(p_hwfn, &ep); if (rc != ECORE_SUCCESS) return rc; } else { ep = iparams->qp->ep; DP_ERR(p_hwfn, "Note re-use of QP for different connect\n"); ep->state = ECORE_IWARP_EP_INIT; } ep->tcp_cid = cid; OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_PUSH_TAIL(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); ep->qp = iparams->qp; ep->qp->ep = ep; OSAL_MEMCPY(ep->remote_mac_addr, iparams->remote_mac_addr, ETH_ALEN); OSAL_MEMCPY(ep->local_mac_addr, iparams->local_mac_addr, ETH_ALEN); OSAL_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 == 0) 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; ecore_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); ep->cm_info.private_data = (u8 *)ep->ep_buffer_virt->out_pdata; ep->cm_info.private_data_len = iparams->cm_info.private_data_len + mpa_data_size; OSAL_MEMCPY((u8 *)(u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, iparams->cm_info.private_data, iparams->cm_info.private_data_len); if (p_hwfn->p_rdma_info->iwarp.tcp_flags & ECORE_IWARP_TS_EN) ts_hdr_size = TIMESTAMP_HEADER_SIZE; ep->mss = iparams->mss - ts_hdr_size; ep->mss = OSAL_MIN_T(u16, ECORE_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 = ecore_iwarp_tcp_offload(p_hwfn, ep); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) EP(0x%x) rc = %d\n", iparams->qp->icid, ep->tcp_cid, rc); if (rc != ECORE_SUCCESS) ecore_iwarp_destroy_ep(p_hwfn, ep, true); return rc; } static struct ecore_iwarp_ep * ecore_iwarp_get_free_ep(struct ecore_hwfn *p_hwfn) { struct ecore_iwarp_ep *ep = OSAL_NULL; enum _ecore_status_t rc; OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); if (OSAL_LIST_IS_EMPTY(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { DP_ERR(p_hwfn, "Ep list is empty\n"); goto out; } ep = OSAL_LIST_FIRST_ENTRY(&p_hwfn->p_rdma_info->iwarp.ep_free_list, struct ecore_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 == ECORE_IWARP_INVALID_TCP_CID) { rc = ecore_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 = ECORE_IWARP_INVALID_TCP_CID; ep = OSAL_NULL; goto out; } } OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_free_list); out: OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); return ep; } /* takes into account timer scan ~20 ms and interrupt/dpc overhead */ #define ECORE_IWARP_MAX_CID_CLEAN_TIME 100 /* Technically we shouldn't reach this count with 100 ms iteration sleep */ #define ECORE_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 enum _ecore_status_t ecore_iwarp_wait_cid_map_cleared(struct ecore_hwfn *p_hwfn, struct ecore_bmap *bmap) { int prev_weight = 0; int wait_count = 0; int weight = 0; weight = OSAL_BITMAP_WEIGHT(bmap->bitmap, bmap->max_count); prev_weight = weight; while (weight) { OSAL_MSLEEP(ECORE_IWARP_MAX_CID_CLEAN_TIME); weight = OSAL_BITMAP_WEIGHT(bmap->bitmap, bmap->max_count); if (prev_weight == weight) { wait_count++; } else { prev_weight = weight; wait_count = 0; } if (wait_count > ECORE_IWARP_MAX_NO_PROGRESS_CNT) { DP_NOTICE(p_hwfn, false, "%s bitmap wait timed out (%d cids pending)\n", bmap->name, weight); return ECORE_TIMEOUT; } } return ECORE_SUCCESS; } static enum _ecore_status_t ecore_iwarp_wait_for_all_cids(struct ecore_hwfn *p_hwfn) { enum _ecore_status_t rc; int i; rc = ecore_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 < ECORE_IWARP_PREALLOC_CNT; i++) { ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, i); } /* Now wait for all cids to be completed */ rc = ecore_iwarp_wait_cid_map_cleared( p_hwfn, &p_hwfn->p_rdma_info->cid_map); return rc; } static void ecore_iwarp_free_prealloc_ep(struct ecore_hwfn *p_hwfn) { struct ecore_iwarp_ep *ep; u32 cid; while (!OSAL_LIST_IS_EMPTY(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); ep = OSAL_LIST_FIRST_ENTRY( &p_hwfn->p_rdma_info->iwarp.ep_free_list, struct ecore_iwarp_ep, list_entry); if (ep == OSAL_NULL) { OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); break; } #ifdef _NTDDK_ #pragma warning(suppress : 6011) #endif OSAL_LIST_REMOVE_ENTRY( &ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_free_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); if (ep->tcp_cid != ECORE_IWARP_INVALID_TCP_CID) { cid = ep->tcp_cid - ecore_cxt_get_proto_cid_start( p_hwfn, p_hwfn->p_rdma_info->proto); OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); ecore_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); } ecore_iwarp_destroy_ep(p_hwfn, ep, false); } } static enum _ecore_status_t ecore_iwarp_prealloc_ep(struct ecore_hwfn *p_hwfn, bool init) { struct ecore_iwarp_ep *ep; int rc = ECORE_SUCCESS; u32 cid; int count; int i; if (init) count = ECORE_IWARP_PREALLOC_CNT; else count = 1; for (i = 0; i < count; i++) { rc = ecore_iwarp_create_ep(p_hwfn, &ep); if (rc != ECORE_SUCCESS) return rc; /* During initialization we allocate from the main pool, * afterwards we allocate only from the tcp_cid. */ if (init) { rc = ecore_iwarp_alloc_cid(p_hwfn, &cid); if (rc != ECORE_SUCCESS) goto err; ecore_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 */ ecore_iwarp_alloc_tcp_cid(p_hwfn, &cid); } ep->tcp_cid = cid; OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_PUSH_TAIL(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_free_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); } return rc; err: ecore_iwarp_destroy_ep(p_hwfn, ep, false); return rc; } enum _ecore_status_t ecore_iwarp_alloc(struct ecore_hwfn *p_hwfn) { enum _ecore_status_t rc; #ifdef CONFIG_ECORE_LOCK_ALLOC OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_hwfn->p_rdma_info->iwarp.qp_lock); #endif OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.qp_lock); /* 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 = ecore_rdma_bmap_alloc(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, ECORE_IWARP_PREALLOC_CNT, "TCP_CID"); if (rc != ECORE_SUCCESS) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Failed to allocate tcp cid, rc = %d\n", rc); return rc; } OSAL_LIST_INIT(&p_hwfn->p_rdma_info->iwarp.ep_free_list); //DAVIDS OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.iw_lock); rc = ecore_iwarp_prealloc_ep(p_hwfn, true); if (rc != ECORE_SUCCESS) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ecore_iwarp_prealloc_ep failed, rc = %d\n", rc); return rc; } DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ecore_iwarp_prealloc_ep success, rc = %d\n", rc); return ecore_ooo_alloc(p_hwfn); } void ecore_iwarp_resc_free(struct ecore_hwfn *p_hwfn) { struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; #ifdef CONFIG_ECORE_LOCK_ALLOC OSAL_SPIN_LOCK_DEALLOC(iwarp_info->iw_lock); OSAL_SPIN_LOCK_DEALLOC(iwarp_info->qp_lock); #endif ecore_ooo_free(p_hwfn); if (iwarp_info->partial_fpdus) OSAL_FREE(p_hwfn->p_dev, iwarp_info->partial_fpdus); if (iwarp_info->mpa_bufs) OSAL_FREE(p_hwfn->p_dev, iwarp_info->mpa_bufs); if (iwarp_info->mpa_intermediate_buf) OSAL_FREE(p_hwfn->p_dev, iwarp_info->mpa_intermediate_buf); ecore_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1); } enum _ecore_status_t ecore_iwarp_accept(void *rdma_cxt, struct ecore_iwarp_accept_in *iparams) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_iwarp_ep *ep; u8 mpa_data_size = 0; enum _ecore_status_t rc; ep = (struct ecore_iwarp_ep *)iparams->ep_context; if (!ep) { DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n"); return ECORE_INVAL; } DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", iparams->qp->icid, ep->tcp_cid); if ((iparams->ord > ECORE_IWARP_ORD_DEFAULT) || (iparams->ird > ECORE_IWARP_IRD_DEFAULT)) { DP_VERBOSE(p_hwfn, ECORE_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 ECORE_INVAL; } /* We could reach qp->ep != OSAL NULL if we do accept on the same qp */ if (iparams->qp->ep == OSAL_NULL) { /* We need to add a replacement for the ep to the free list */ ecore_iwarp_prealloc_ep(p_hwfn, false); } else { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Note re-use of QP for different connect\n"); /* Return the old ep to the free_pool */ ecore_iwarp_return_ep(p_hwfn, iparams->qp->ep); } ecore_iwarp_move_to_ep_list(p_hwfn, &p_hwfn->p_rdma_info->iwarp.ep_list, ep); ep->listener = OSAL_NULL; 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 * to match remote ord */ if (iparams->ord > ep->cm_info.ird) { iparams->ord = ep->cm_info.ird; } /* For chelsio compatability, if rtr_zero read is requested * we can't set ird to zero */ 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; ecore_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; OSAL_MEMCPY((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, iparams->private_data, iparams->private_data_len); if (ep->state == ECORE_IWARP_EP_CLOSED) { DP_NOTICE(p_hwfn, false, "(0x%x) Accept called on EP in CLOSED state\n", ep->tcp_cid); ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; ecore_iwarp_return_ep(p_hwfn, ep); return ECORE_CONN_RESET; } rc = ecore_iwarp_mpa_offload(p_hwfn, ep); if (rc) { ecore_iwarp_modify_qp(p_hwfn, iparams->qp, ECORE_IWARP_QP_STATE_ERROR, 1); } return rc; } enum _ecore_status_t ecore_iwarp_reject(void *rdma_cxt, struct ecore_iwarp_reject_in *iparams) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_iwarp_ep *ep; u8 mpa_data_size = 0; enum _ecore_status_t rc; ep = (struct ecore_iwarp_ep *)iparams->ep_context; if (!ep) { DP_ERR(p_hwfn, "Ep Context receive in reject is NULL\n"); return ECORE_INVAL; } DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "EP(0x%x)\n", ep->tcp_cid); ep->cb_context = iparams->cb_context; ep->qp = OSAL_NULL; ecore_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; OSAL_MEMCPY((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, iparams->private_data, iparams->private_data_len); if (ep->state == ECORE_IWARP_EP_CLOSED) { DP_NOTICE(p_hwfn, false, "(0x%x) Reject called on EP in CLOSED state\n", ep->tcp_cid); ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; ecore_iwarp_return_ep(p_hwfn, ep); return ECORE_CONN_RESET; } rc = ecore_iwarp_mpa_offload(p_hwfn, ep); return rc; } static void ecore_iwarp_print_cm_info(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_cm_info *cm_info) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ip_version = %d\n", cm_info->ip_version); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_ip %x.%x.%x.%x\n", cm_info->remote_ip[0], cm_info->remote_ip[1], cm_info->remote_ip[2], cm_info->remote_ip[3]); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_ip %x.%x.%x.%x\n", cm_info->local_ip[0], cm_info->local_ip[1], cm_info->local_ip[2], cm_info->local_ip[3]); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_port = %x\n", cm_info->remote_port); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_port = %x\n", cm_info->local_port); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "vlan = %x\n", cm_info->vlan); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "private_data_len = %x\n", cm_info->private_data_len); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ord = %d\n", cm_info->ord); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ird = %d\n", cm_info->ird); } static int ecore_iwarp_ll2_post_rx(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ll2_buff *buf, u8 handle) { enum _ecore_status_t rc; rc = ecore_ll2_post_rx_buffer( p_hwfn, handle, buf->data_phys_addr, (u16)buf->buff_size, buf, 1); if (rc) { DP_NOTICE(p_hwfn, false, "Failed to repost rx buffer to ll2 rc = %d, handle=%d\n", rc, handle); OSAL_DMA_FREE_COHERENT( p_hwfn->p_dev, buf->data, buf->data_phys_addr, buf->buff_size); OSAL_FREE(p_hwfn->p_dev, buf); } return rc; } static bool ecore_iwarp_ep_exists(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_listener *listener, struct ecore_iwarp_cm_info *cm_info) { struct ecore_iwarp_ep *ep = OSAL_NULL; bool found = false; OSAL_SPIN_LOCK(&listener->lock); OSAL_LIST_FOR_EACH_ENTRY(ep, &listener->ep_list, list_entry, struct ecore_iwarp_ep) { 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) && !OSAL_MEMCMP(&(ep->cm_info.local_ip), cm_info->local_ip, sizeof(cm_info->local_ip)) && !OSAL_MEMCMP(&(ep->cm_info.remote_ip), cm_info->remote_ip, sizeof(cm_info->remote_ip))) { found = true; break; } } OSAL_SPIN_UNLOCK(&listener->lock); if (found) { DP_NOTICE(p_hwfn, false, "SYN received on active connection - dropping\n"); ecore_iwarp_print_cm_info(p_hwfn, cm_info); return true; } return false; } static struct ecore_iwarp_listener * ecore_iwarp_get_listener(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_cm_info *cm_info) { struct ecore_iwarp_listener *listener = OSAL_NULL; static const u32 ip_zero[4] = {0, 0, 0, 0}; bool found = false; ecore_iwarp_print_cm_info(p_hwfn, cm_info); OSAL_LIST_FOR_EACH_ENTRY(listener, &p_hwfn->p_rdma_info->iwarp.listen_list, list_entry, struct ecore_iwarp_listener) { if (listener->port == cm_info->local_port) { /* Any IP (i.e. 0.0.0.0 ) will be treated as any vlan */ if (!OSAL_MEMCMP(listener->ip_addr, ip_zero, sizeof(ip_zero))) { found = true; break; } /* If not any IP -> check vlan as well */ if (!OSAL_MEMCMP(listener->ip_addr, cm_info->local_ip, sizeof(cm_info->local_ip)) && (listener->vlan == cm_info->vlan)) { found = true; break; } } } if (found && listener->state == ECORE_IWARP_LISTENER_STATE_ACTIVE) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "listener found = %p\n", listener); return listener; } DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "listener not found\n"); return OSAL_NULL; } static enum _ecore_status_t ecore_iwarp_parse_rx_pkt(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_cm_info *cm_info, void *buf, u8 *remote_mac_addr, u8 *local_mac_addr, int *payload_len, int *tcp_start_offset) { struct ecore_vlan_ethhdr *vethh; struct ecore_ethhdr *ethh; struct ecore_iphdr *iph; struct ecore_ipv6hdr *ip6h; struct ecore_tcphdr *tcph; bool vlan_valid = false; int eth_hlen, ip_hlen; u16 eth_type; int i; ethh = (struct ecore_ethhdr *)buf; eth_type = ntohs(ethh->h_proto); if (eth_type == ETH_P_8021Q) { vlan_valid = true; vethh = (struct ecore_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); OSAL_MEMCPY(remote_mac_addr, ethh->h_source, ETH_ALEN); OSAL_MEMCPY(local_mac_addr, ethh->h_dest, ETH_ALEN); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_type =%d Source mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", eth_type, ethh->h_source[0], ethh->h_source[1], ethh->h_source[2], ethh->h_source[3], ethh->h_source[4], ethh->h_source[5]); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_hlen=%d destination mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", eth_hlen, ethh->h_dest[0], ethh->h_dest[1], ethh->h_dest[2], ethh->h_dest[3], ethh->h_dest[4], ethh->h_dest[5]); iph = (struct ecore_iphdr *)((u8 *)(ethh) + eth_hlen); if (eth_type == ETH_P_IP) { if (iph->protocol != IPPROTO_TCP) { DP_NOTICE(p_hwfn, false, "Unexpected ip protocol on ll2 %x\n", iph->protocol); return ECORE_INVAL; } cm_info->local_ip[0] = ntohl(iph->daddr); cm_info->remote_ip[0] = ntohl(iph->saddr); cm_info->ip_version = (enum ecore_tcp_ip_version)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 ecore_ipv6hdr *)iph; if (ip6h->nexthdr != IPPROTO_TCP) { DP_NOTICE(p_hwfn, false, "Unexpected ip protocol on ll2 %x\n", iph->protocol); return ECORE_INVAL; } 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 = (enum ecore_tcp_ip_version)TCP_IPV6; ip_hlen = sizeof(*ip6h); *payload_len = ntohs(ip6h->payload_len); } else { DP_NOTICE(p_hwfn, false, "Unexpected ethertype on ll2 %x\n", eth_type); return ECORE_INVAL; } tcph = (struct ecore_tcphdr *)((u8 *)iph + ip_hlen); if (!tcph->syn) { DP_NOTICE(p_hwfn, false, "Only SYN type packet expected on this ll2 conn, iph->ihl=%d source=%d dest=%d\n", iph->ihl, tcph->source, tcph->dest); return ECORE_INVAL; } cm_info->local_port = ntohs(tcph->dest); cm_info->remote_port = ntohs(tcph->source); ecore_iwarp_print_cm_info(p_hwfn, cm_info); *tcp_start_offset = eth_hlen + ip_hlen; return ECORE_SUCCESS; } static struct ecore_iwarp_fpdu * ecore_iwarp_get_curr_fpdu(struct ecore_hwfn *p_hwfn, u16 cid) { struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; struct ecore_iwarp_fpdu *partial_fpdu; u32 idx = cid - ecore_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 OSAL_NULL; } partial_fpdu = &iwarp_info->partial_fpdus[idx]; return partial_fpdu; } enum ecore_iwarp_mpa_pkt_type { ECORE_IWARP_MPA_PKT_PACKED, ECORE_IWARP_MPA_PKT_PARTIAL, ECORE_IWARP_MPA_PKT_UNALIGNED }; #define ECORE_IWARP_INVALID_FPDU_LENGTH 0xffff #define ECORE_IWARP_MPA_FPDU_LENGTH_SIZE (2) #define ECORE_IWARP_MPA_CRC32_DIGEST_SIZE (4) /* Pad to multiple of 4 */ #define ECORE_IWARP_PDU_DATA_LEN_WITH_PAD(data_len) (((data_len) + 3) & ~3) #define ECORE_IWARP_FPDU_LEN_WITH_PAD(_mpa_len) \ (ECORE_IWARP_PDU_DATA_LEN_WITH_PAD(_mpa_len + \ ECORE_IWARP_MPA_FPDU_LENGTH_SIZE) + \ ECORE_IWARP_MPA_CRC32_DIGEST_SIZE) /* fpdu can be fragmented over maximum 3 bds: header, partial mpa, unaligned */ #define ECORE_IWARP_MAX_BDS_PER_FPDU 3 char *pkt_type_str[] = { "ECORE_IWARP_MPA_PKT_PACKED", "ECORE_IWARP_MPA_PKT_PARTIAL", "ECORE_IWARP_MPA_PKT_UNALIGNED" }; static enum _ecore_status_t ecore_iwarp_recycle_pkt(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu, struct ecore_iwarp_ll2_buff *buf); static enum ecore_iwarp_mpa_pkt_type ecore_iwarp_mpa_classify(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu, u16 tcp_payload_len, u8 *mpa_data) { enum ecore_iwarp_mpa_pkt_type pkt_type; u16 mpa_len; if (fpdu->incomplete_bytes) { pkt_type = ECORE_IWARP_MPA_PKT_UNALIGNED; goto out; } /* special case of one byte remaining... */ if (tcp_payload_len == 1) { /* lower byte will be read next packet */ fpdu->fpdu_length = *mpa_data << 8; pkt_type = ECORE_IWARP_MPA_PKT_PARTIAL; goto out; } mpa_len = ntohs(*((u16 *)(mpa_data))); fpdu->fpdu_length = ECORE_IWARP_FPDU_LEN_WITH_PAD(mpa_len); if (fpdu->fpdu_length <= tcp_payload_len) pkt_type = ECORE_IWARP_MPA_PKT_PACKED; else pkt_type = ECORE_IWARP_MPA_PKT_PARTIAL; out: DP_VERBOSE(p_hwfn, ECORE_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 ecore_iwarp_init_fpdu(struct ecore_iwarp_ll2_buff *buf, struct ecore_iwarp_fpdu *fpdu, struct unaligned_opaque_data *pkt_data, u16 tcp_payload_size, u8 placement_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 + pkt_data->first_mpa_offset; fpdu->mpa_frag_virt = (u8 *)(buf->data) + pkt_data->first_mpa_offset; if (tcp_payload_size == 1) fpdu->incomplete_bytes = ECORE_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 enum _ecore_status_t ecore_iwarp_copy_fpdu(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu, struct unaligned_opaque_data *pkt_data, struct ecore_iwarp_ll2_buff *buf, u16 tcp_payload_size) { u8 *tmp_buf = p_hwfn->p_rdma_info->iwarp.mpa_intermediate_buf; enum _ecore_status_t 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 ECORE_INVAL; } DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "MPA ALIGN Copying fpdu: [%p, %d] [%p, %d]\n", fpdu->mpa_frag_virt, fpdu->mpa_frag_len, (u8 *)(buf->data) + pkt_data->first_mpa_offset, tcp_payload_size); OSAL_MEMCPY(tmp_buf, fpdu->mpa_frag_virt, fpdu->mpa_frag_len); OSAL_MEMCPY(tmp_buf + fpdu->mpa_frag_len, (u8 *)(buf->data) + pkt_data->first_mpa_offset, tcp_payload_size); rc = ecore_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... */ OSAL_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 overriden 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, ECORE_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 ecore_iwarp_update_fpdu_length(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu, u8 *mpa_data) { u16 mpa_len; /* Update incomplete packets if needed */ if (fpdu->incomplete_bytes == ECORE_IWARP_INVALID_FPDU_LENGTH) { mpa_len = fpdu->fpdu_length | *mpa_data; fpdu->fpdu_length = ECORE_IWARP_FPDU_LEN_WITH_PAD(mpa_len); fpdu->mpa_frag_len = fpdu->fpdu_length; /* one byte of hdr */ fpdu->incomplete_bytes = fpdu->fpdu_length - 1; DP_VERBOSE(p_hwfn, ECORE_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 ECORE_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 enum _ecore_status_t ecore_iwarp_recycle_pkt(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu, struct ecore_iwarp_ll2_buff *buf) { struct ecore_ll2_tx_pkt_info tx_pkt; enum _ecore_status_t rc; u8 ll2_handle; OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt)); tx_pkt.num_of_bds = 1; tx_pkt.tx_dest = ECORE_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 = OSAL_NULL; tx_pkt.cookie = buf; ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; rc = ecore_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "MPA_ALIGN: send drop tx packet [%lx, 0x%x], buf=%p, rc=%d\n", (long unsigned int)tx_pkt.first_frag, tx_pkt.first_frag_len, buf, rc); if (rc) DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Can't drop packet rc=%d\n", rc); return rc; } static enum _ecore_status_t ecore_iwarp_win_right_edge(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu) { struct ecore_ll2_tx_pkt_info tx_pkt; enum _ecore_status_t rc; u8 ll2_handle; OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt)); tx_pkt.num_of_bds = 1; tx_pkt.tx_dest = ECORE_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 = ecore_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "MPA_ALIGN: Sent right edge FPDU num_bds=%d [%lx, 0x%x], rc=%d\n", tx_pkt.num_of_bds, (long unsigned int)tx_pkt.first_frag, tx_pkt.first_frag_len, rc); if (rc) DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Can't send right edge rc=%d\n", rc); return rc; } static enum _ecore_status_t ecore_iwarp_send_fpdu(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_fpdu *fpdu, struct unaligned_opaque_data *curr_pkt, struct ecore_iwarp_ll2_buff *buf, u16 tcp_payload_size, enum ecore_iwarp_mpa_pkt_type pkt_type) { struct ecore_ll2_tx_pkt_info tx_pkt; enum _ecore_status_t rc; u8 ll2_handle; OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt)); tx_pkt.num_of_bds = (pkt_type == ECORE_IWARP_MPA_PKT_UNALIGNED) ? 3 : 2; tx_pkt.tx_dest = ECORE_LL2_TX_DEST_LB; tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; /* Send the mpa_buf only with the last fpdu (in case of packed) */ if ((pkt_type == ECORE_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; rc = ecore_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true); if (rc) goto err; rc = ecore_ll2_set_fragment_of_tx_packet(p_hwfn, ll2_handle, fpdu->mpa_frag, fpdu->mpa_frag_len); if (rc) goto err; if (fpdu->incomplete_bytes) { rc = ecore_ll2_set_fragment_of_tx_packet( p_hwfn, ll2_handle, buf->data_phys_addr + curr_pkt->first_mpa_offset, fpdu->incomplete_bytes); if (rc) goto err; } err: DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "MPA_ALIGN: Sent FPDU num_bds=%d [%lx, 0x%x], [0x%lx, 0x%x], [0x%lx, 0x%x] (cookie %p) rc=%d\n", tx_pkt.num_of_bds, (long unsigned int)tx_pkt.first_frag, tx_pkt.first_frag_len, (long unsigned int)fpdu->mpa_frag, fpdu->mpa_frag_len, (long unsigned int)buf->data_phys_addr + curr_pkt->first_mpa_offset, fpdu->incomplete_bytes, tx_pkt.cookie, rc); return rc; } static void ecore_iwarp_mpa_get_data(struct ecore_hwfn *p_hwfn, struct unaligned_opaque_data *curr_pkt, u32 opaque_data0, u32 opaque_data1) { u64 opaque_data; opaque_data = HILO_64(opaque_data1, opaque_data0); *curr_pkt = *((struct unaligned_opaque_data *)&opaque_data); /* fix endianity */ curr_pkt->first_mpa_offset = curr_pkt->tcp_payload_offset + OSAL_LE16_TO_CPU(curr_pkt->first_mpa_offset); curr_pkt->cid = OSAL_LE32_TO_CPU(curr_pkt->cid); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "OPAQUE0=0x%x OPAQUE1=0x%x first_mpa_offset:0x%x\ttcp_payload_offset:0x%x\tflags:0x%x\tcid:0x%x\n", opaque_data0, opaque_data1, curr_pkt->first_mpa_offset, curr_pkt->tcp_payload_offset, curr_pkt->flags, curr_pkt->cid); } static void ecore_iwarp_mpa_print_tcp_seq(struct ecore_hwfn *p_hwfn, void *buf) { struct ecore_vlan_ethhdr *vethh; struct ecore_ethhdr *ethh; struct ecore_iphdr *iph; struct ecore_ipv6hdr *ip6h; struct ecore_tcphdr *tcph; bool vlan_valid = false; int eth_hlen, ip_hlen; u16 eth_type; if ((p_hwfn->dp_level > ECORE_LEVEL_VERBOSE) || !(p_hwfn->dp_module & ECORE_MSG_RDMA)) return; ethh = (struct ecore_ethhdr *)buf; eth_type = ntohs(ethh->h_proto); if (eth_type == ETH_P_8021Q) { vlan_valid = true; vethh = (struct ecore_vlan_ethhdr *)ethh; eth_type = ntohs(vethh->h_vlan_encapsulated_proto); } eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0); iph = (struct ecore_iphdr *)((u8 *)(ethh) + eth_hlen); if (eth_type == ETH_P_IP) { ip_hlen = (iph->ihl)*sizeof(u32); } else if (eth_type == ETH_P_IPV6) { ip6h = (struct ecore_ipv6hdr *)iph; ip_hlen = sizeof(*ip6h); } else { DP_ERR(p_hwfn, "Unexpected ethertype on ll2 %x\n", eth_type); return; } tcph = (struct ecore_tcphdr *)((u8 *)iph + ip_hlen); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Processing MPA PKT: tcp_seq=0x%x tcp_ack_seq=0x%x\n", ntohl(tcph->seq), ntohl(tcph->ack_seq)); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_type =%d Source mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", eth_type, ethh->h_source[0], ethh->h_source[1], ethh->h_source[2], ethh->h_source[3], ethh->h_source[4], ethh->h_source[5]); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_hlen=%d destination mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", eth_hlen, ethh->h_dest[0], ethh->h_dest[1], ethh->h_dest[2], ethh->h_dest[3], ethh->h_dest[4], ethh->h_dest[5]); return; } /* 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 enum _ecore_status_t ecore_iwarp_process_mpa_pkt(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ll2_mpa_buf *mpa_buf) { struct ecore_iwarp_ll2_buff *buf = mpa_buf->ll2_buf; enum ecore_iwarp_mpa_pkt_type pkt_type; struct unaligned_opaque_data *curr_pkt = &mpa_buf->data; struct ecore_iwarp_fpdu *fpdu; u8 *mpa_data; enum _ecore_status_t rc = ECORE_SUCCESS; ecore_iwarp_mpa_print_tcp_seq( p_hwfn, (u8 *)(buf->data) + mpa_buf->placement_offset); fpdu = ecore_iwarp_get_curr_fpdu(p_hwfn, curr_pkt->cid & 0xffff); if (!fpdu) {/* something corrupt with cid, post rx back */ DP_ERR(p_hwfn, "Invalid cid, drop and post back to rx cid=%x\n", curr_pkt->cid); rc = ecore_iwarp_ll2_post_rx( p_hwfn, buf, p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle); if (rc) { /* not much we can do here except log and free */ DP_ERR(p_hwfn, "Post rx buffer failed\n"); /* we don't expect any failures from rx, not even * busy since we allocate #bufs=#descs */ rc = ECORE_UNKNOWN_ERROR; } return rc; } do { mpa_data = ((u8 *)(buf->data) + curr_pkt->first_mpa_offset); pkt_type = ecore_iwarp_mpa_classify(p_hwfn, fpdu, mpa_buf->tcp_payload_len, mpa_data); switch (pkt_type) { case ECORE_IWARP_MPA_PKT_PARTIAL: ecore_iwarp_init_fpdu(buf, fpdu, curr_pkt, mpa_buf->tcp_payload_len, mpa_buf->placement_offset); if (!ECORE_IWARP_IS_RIGHT_EDGE(curr_pkt)) { mpa_buf->tcp_payload_len = 0; break; } rc = ecore_iwarp_win_right_edge(p_hwfn, fpdu); if (rc) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Can't send FPDU:reset rc=%d\n", rc); OSAL_MEM_ZERO(fpdu, sizeof(*fpdu)); break; } mpa_buf->tcp_payload_len = 0; break; case ECORE_IWARP_MPA_PKT_PACKED: if (fpdu->fpdu_length == 8) { DP_ERR(p_hwfn, "SUSPICIOUS fpdu_length = 0x%x: assuming bug...aborting this packet...\n", fpdu->fpdu_length); mpa_buf->tcp_payload_len = 0; break; } ecore_iwarp_init_fpdu(buf, fpdu, curr_pkt, mpa_buf->tcp_payload_len, mpa_buf->placement_offset); rc = ecore_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, mpa_buf->tcp_payload_len, pkt_type); if (rc) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Can't send FPDU:reset rc=%d\n", rc); OSAL_MEM_ZERO(fpdu, sizeof(*fpdu)); break; } mpa_buf->tcp_payload_len -= fpdu->fpdu_length; curr_pkt->first_mpa_offset += fpdu->fpdu_length; break; case ECORE_IWARP_MPA_PKT_UNALIGNED: ecore_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 (ECORE_IWARP_IS_RIGHT_EDGE(curr_pkt)) { rc = ecore_iwarp_win_right_edge(p_hwfn, fpdu); /* packet will be re-processed later */ if (rc) return rc; } rc = ecore_iwarp_copy_fpdu( p_hwfn, fpdu, curr_pkt, buf, mpa_buf->tcp_payload_len); /* packet will be re-processed later */ if (rc) return rc; mpa_buf->tcp_payload_len = 0; break; } rc = ecore_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, mpa_buf->tcp_payload_len, pkt_type); if (rc) { DP_VERBOSE(p_hwfn, ECORE_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; 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; } static void ecore_iwarp_process_pending_pkts(struct ecore_hwfn *p_hwfn) { struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; struct ecore_iwarp_ll2_mpa_buf *mpa_buf = OSAL_NULL; enum _ecore_status_t rc; while (!OSAL_LIST_IS_EMPTY(&iwarp_info->mpa_buf_pending_list)) { mpa_buf = OSAL_LIST_FIRST_ENTRY( &iwarp_info->mpa_buf_pending_list, struct ecore_iwarp_ll2_mpa_buf, list_entry); rc = ecore_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 == ECORE_BUSY) break; #ifdef _NTDDK_ #pragma warning(suppress : 6011) #pragma warning(suppress : 28182) #endif OSAL_LIST_REMOVE_ENTRY( &mpa_buf->list_entry, &iwarp_info->mpa_buf_pending_list); OSAL_LIST_PUSH_TAIL(&mpa_buf->list_entry, &iwarp_info->mpa_buf_list); if (rc) { /* different error, don't continue */ DP_NOTICE(p_hwfn, false, "process pkts failed rc=%d\n", rc); break; } } } static void ecore_iwarp_ll2_comp_mpa_pkt(void *cxt, struct ecore_ll2_comp_rx_data *data) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; struct ecore_iwarp_ll2_mpa_buf *mpa_buf; iwarp_info->unalign_rx_comp++; mpa_buf = OSAL_LIST_FIRST_ENTRY(&iwarp_info->mpa_buf_list, struct ecore_iwarp_ll2_mpa_buf, list_entry); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "LL2 MPA CompRx buf=%p placement_offset=%d, payload_len=0x%x mpa_buf=%p\n", data->cookie, data->u.placement_offset, data->length.packet_length, mpa_buf); if (!mpa_buf) { DP_ERR(p_hwfn, "no free mpa buf. this is a driver bug.\n"); return; } OSAL_LIST_REMOVE_ENTRY(&mpa_buf->list_entry, &iwarp_info->mpa_buf_list); ecore_iwarp_mpa_get_data(p_hwfn, &mpa_buf->data, data->opaque_data_0, data->opaque_data_1); mpa_buf->tcp_payload_len = data->length.packet_length - mpa_buf->data.first_mpa_offset; mpa_buf->ll2_buf = (struct ecore_iwarp_ll2_buff *)data->cookie; mpa_buf->data.first_mpa_offset += data->u.placement_offset; mpa_buf->placement_offset = data->u.placement_offset; OSAL_LIST_PUSH_TAIL(&mpa_buf->list_entry, &iwarp_info->mpa_buf_pending_list); ecore_iwarp_process_pending_pkts(p_hwfn); } static void ecore_iwarp_ll2_comp_syn_pkt(void *cxt, struct ecore_ll2_comp_rx_data *data) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; struct ecore_iwarp_ll2_buff *buf = (struct ecore_iwarp_ll2_buff *)data->cookie; struct ecore_iwarp_listener *listener; struct ecore_iwarp_cm_info cm_info; struct ecore_ll2_tx_pkt_info tx_pkt; u8 remote_mac_addr[ETH_ALEN]; u8 local_mac_addr[ETH_ALEN]; struct ecore_iwarp_ep *ep; enum _ecore_status_t rc; int tcp_start_offset; u8 ts_hdr_size = 0; int payload_len; u32 hdr_size; OSAL_MEM_ZERO(&cm_info, sizeof(cm_info)); /* Check if packet was received with errors... */ if (data->err_flags != 0) { DP_NOTICE(p_hwfn, false, "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, false, "Syn packet received with checksum error\n"); goto err; } rc = ecore_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 */ listener = ecore_iwarp_get_listener(p_hwfn, &cm_info); if (!listener) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "SYN received on tuple not listened on parse_flags=%d packet len=%d\n", data->parse_flags, data->length.packet_length); OSAL_MEMSET(&tx_pkt, 0, sizeof(tx_pkt)); tx_pkt.num_of_bds = 1; tx_pkt.bd_flags = 0; tx_pkt.l4_hdr_offset_w = (data->length.packet_length) >> 2; tx_pkt.tx_dest = ECORE_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 = ecore_ll2_prepare_tx_packet( p_hwfn, p_hwfn->p_rdma_info->iwarp.ll2_syn_handle, &tx_pkt, true); if (rc) { DP_NOTICE(p_hwfn, false, "Can't post SYN back to chip rc=%d\n", rc); goto err; } return; } DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Received syn on listening port\n"); /* For debugging purpose... */ if (listener->drop) goto err; /* There may be an open ep on this connection if this is a syn * retrasnmit... need to make sure there isn't... */ if (ecore_iwarp_ep_exists(p_hwfn, listener, &cm_info)) goto err; ep = ecore_iwarp_get_free_ep(p_hwfn); if (ep == OSAL_NULL) goto err; OSAL_SPIN_LOCK(&listener->lock); OSAL_LIST_PUSH_TAIL(&ep->list_entry, &listener->ep_list); OSAL_SPIN_UNLOCK(&listener->lock); OSAL_MEMCPY(ep->remote_mac_addr, remote_mac_addr, ETH_ALEN); OSAL_MEMCPY(ep->local_mac_addr, local_mac_addr, ETH_ALEN); OSAL_MEMCPY(&ep->cm_info, &cm_info, sizeof(ep->cm_info)); if (p_hwfn->p_rdma_info->iwarp.tcp_flags & ECORE_IWARP_TS_EN) ts_hdr_size = TIMESTAMP_HEADER_SIZE; hdr_size = ((cm_info.ip_version == ECORE_TCP_IPV4) ? 40 : 60) + ts_hdr_size; ep->mss = p_hwfn->p_rdma_info->iwarp.max_mtu - hdr_size; ep->mss = OSAL_MIN_T(u16, ECORE_IWARP_MAX_FW_MSS, ep->mss); ep->listener = listener; 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 = ecore_iwarp_tcp_offload(p_hwfn, ep); if (rc != ECORE_SUCCESS) { ecore_iwarp_return_ep(p_hwfn, ep); goto err; } return; err: ecore_iwarp_ll2_post_rx( p_hwfn, buf, p_hwfn->p_rdma_info->iwarp.ll2_syn_handle); } static void ecore_iwarp_ll2_rel_rx_pkt(void *cxt, u8 OSAL_UNUSED connection_handle, void *cookie, dma_addr_t OSAL_UNUSED rx_buf_addr, bool OSAL_UNUSED b_last_packet) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; struct ecore_iwarp_ll2_buff *buffer = (struct ecore_iwarp_ll2_buff *)cookie; OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, buffer->data, buffer->data_phys_addr, buffer->buff_size); OSAL_FREE(p_hwfn->p_dev, buffer); } static void ecore_iwarp_ll2_comp_tx_pkt(void *cxt, u8 connection_handle, void *cookie, dma_addr_t OSAL_UNUSED first_frag_addr, bool OSAL_UNUSED b_last_fragment, bool OSAL_UNUSED b_last_packet) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; struct ecore_iwarp_ll2_buff *buffer = (struct ecore_iwarp_ll2_buff *)cookie; struct ecore_iwarp_ll2_buff *piggy; if (!buffer) /* can happen in packed mpa unaligned... */ return; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "LL2 CompTX buf=%p piggy_buf=%p handle=%d\n", buffer, buffer->piggy_buf, connection_handle); /* we got a tx packet -> this was originally a rx packet... now we * can post it back... */ piggy = buffer->piggy_buf; if (piggy) { buffer->piggy_buf = OSAL_NULL; ecore_iwarp_ll2_post_rx(p_hwfn, piggy, connection_handle); } ecore_iwarp_ll2_post_rx(p_hwfn, buffer, connection_handle); if (connection_handle == p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle) ecore_iwarp_process_pending_pkts(p_hwfn); return; } static void ecore_iwarp_ll2_rel_tx_pkt(void *cxt, u8 OSAL_UNUSED connection_handle, void *cookie, dma_addr_t OSAL_UNUSED first_frag_addr, bool OSAL_UNUSED b_last_fragment, bool OSAL_UNUSED b_last_packet) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; struct ecore_iwarp_ll2_buff *buffer = (struct ecore_iwarp_ll2_buff *)cookie; if (!buffer) return; if (buffer->piggy_buf) { OSAL_DMA_FREE_COHERENT( p_hwfn->p_dev, buffer->piggy_buf->data, buffer->piggy_buf->data_phys_addr, buffer->piggy_buf->buff_size); OSAL_FREE(p_hwfn->p_dev, buffer->piggy_buf); } OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, buffer->data, buffer->data_phys_addr, buffer->buff_size); OSAL_FREE(p_hwfn->p_dev, buffer); return; } /* Current known slowpath for iwarp ll2 is unalign flush. When this completion * is received, need to reset the FPDU. */ static void ecore_iwarp_ll2_slowpath(void *cxt, u8 OSAL_UNUSED connection_handle, u32 opaque_data_0, u32 opaque_data_1) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; struct unaligned_opaque_data unalign_data; struct ecore_iwarp_fpdu *fpdu; ecore_iwarp_mpa_get_data(p_hwfn, &unalign_data, opaque_data_0, opaque_data_1); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "(0x%x) Flush fpdu\n", unalign_data.cid); fpdu = ecore_iwarp_get_curr_fpdu(p_hwfn, (u16)unalign_data.cid); if (fpdu) OSAL_MEM_ZERO(fpdu, sizeof(*fpdu)); } static int ecore_iwarp_ll2_stop(struct ecore_hwfn *p_hwfn) { struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; int rc = 0; if (iwarp_info->ll2_syn_handle != ECORE_IWARP_HANDLE_INVAL) { rc = ecore_ll2_terminate_connection(p_hwfn, iwarp_info->ll2_syn_handle); if (rc) DP_INFO(p_hwfn, "Failed to terminate syn connection\n"); ecore_ll2_release_connection(p_hwfn, iwarp_info->ll2_syn_handle); iwarp_info->ll2_syn_handle = ECORE_IWARP_HANDLE_INVAL; } if (iwarp_info->ll2_ooo_handle != ECORE_IWARP_HANDLE_INVAL) { rc = ecore_ll2_terminate_connection(p_hwfn, iwarp_info->ll2_ooo_handle); if (rc) DP_INFO(p_hwfn, "Failed to terminate ooo connection\n"); ecore_ll2_release_connection(p_hwfn, iwarp_info->ll2_ooo_handle); iwarp_info->ll2_ooo_handle = ECORE_IWARP_HANDLE_INVAL; } if (iwarp_info->ll2_mpa_handle != ECORE_IWARP_HANDLE_INVAL) { rc = ecore_ll2_terminate_connection(p_hwfn, iwarp_info->ll2_mpa_handle); if (rc) DP_INFO(p_hwfn, "Failed to terminate mpa connection\n"); ecore_ll2_release_connection(p_hwfn, iwarp_info->ll2_mpa_handle); iwarp_info->ll2_mpa_handle = ECORE_IWARP_HANDLE_INVAL; } ecore_llh_remove_mac_filter(p_hwfn->p_dev, 0, p_hwfn->p_rdma_info->iwarp.mac_addr); return rc; } static int ecore_iwarp_ll2_alloc_buffers(struct ecore_hwfn *p_hwfn, int num_rx_bufs, int buff_size, u8 ll2_handle) { struct ecore_iwarp_ll2_buff *buffer; int rc = 0; int i; for (i = 0; i < num_rx_bufs; i++) { buffer = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*buffer)); if (!buffer) { DP_INFO(p_hwfn, "Failed to allocate LL2 buffer desc\n"); break; } buffer->data = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &buffer->data_phys_addr, buff_size); if (!buffer->data) { DP_INFO(p_hwfn, "Failed to allocate LL2 buffers\n"); OSAL_FREE(p_hwfn->p_dev, buffer); rc = ECORE_NOMEM; break; } buffer->buff_size = buff_size; rc = ecore_iwarp_ll2_post_rx(p_hwfn, buffer, ll2_handle); if (rc) break; /* buffers will be deallocated by ecore_ll2 */ } return rc; } #define ECORE_IWARP_CACHE_PADDING(size) \ (((size) + ETH_CACHE_LINE_SIZE - 1) & ~(ETH_CACHE_LINE_SIZE - 1)) #define ECORE_IWARP_MAX_BUF_SIZE(mtu) \ ECORE_IWARP_CACHE_PADDING(mtu + ETH_HLEN + 2*VLAN_HLEN + 2 +\ ETH_CACHE_LINE_SIZE) static int ecore_iwarp_ll2_start(struct ecore_hwfn *p_hwfn, struct ecore_rdma_start_in_params *params) { struct ecore_iwarp_info *iwarp_info; struct ecore_ll2_acquire_data data; struct ecore_ll2_cbs cbs; u32 mpa_buff_size; int rc = ECORE_SUCCESS; u16 n_ooo_bufs; int i; iwarp_info = &p_hwfn->p_rdma_info->iwarp; iwarp_info->ll2_syn_handle = ECORE_IWARP_HANDLE_INVAL; iwarp_info->ll2_ooo_handle = ECORE_IWARP_HANDLE_INVAL; iwarp_info->ll2_mpa_handle = ECORE_IWARP_HANDLE_INVAL; iwarp_info->max_mtu = params->max_mtu; OSAL_MEMCPY(p_hwfn->p_rdma_info->iwarp.mac_addr, params->mac_addr, ETH_ALEN); rc = ecore_llh_add_mac_filter(p_hwfn->p_dev, 0, params->mac_addr); if (rc != ECORE_SUCCESS) return rc; /* Start SYN connection */ cbs.rx_comp_cb = ecore_iwarp_ll2_comp_syn_pkt; cbs.rx_release_cb = ecore_iwarp_ll2_rel_rx_pkt; cbs.tx_comp_cb = ecore_iwarp_ll2_comp_tx_pkt; cbs.tx_release_cb = ecore_iwarp_ll2_rel_tx_pkt; cbs.cookie = p_hwfn; OSAL_MEMSET(&data, 0, sizeof(data)); data.input.conn_type = ECORE_LL2_TYPE_IWARP; data.input.mtu = ECORE_IWARP_MAX_SYN_PKT_SIZE; data.input.rx_num_desc = ECORE_IWARP_LL2_SYN_RX_SIZE; data.input.tx_num_desc = ECORE_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 = ECORE_LL2_TX_DEST_LB; data.p_connection_handle = &iwarp_info->ll2_syn_handle; data.cbs = &cbs; rc = ecore_ll2_acquire_connection(p_hwfn, &data); if (rc) { DP_NOTICE(p_hwfn, false, "Failed to acquire LL2 connection\n"); ecore_llh_remove_mac_filter(p_hwfn->p_dev, 0, params->mac_addr); return rc; } rc = ecore_ll2_establish_connection(p_hwfn, iwarp_info->ll2_syn_handle); if (rc) { DP_NOTICE(p_hwfn, false, "Failed to establish LL2 connection\n"); goto err; } rc = ecore_iwarp_ll2_alloc_buffers(p_hwfn, ECORE_IWARP_LL2_SYN_RX_SIZE, ECORE_IWARP_MAX_SYN_PKT_SIZE, iwarp_info->ll2_syn_handle); if (rc) goto err; /* Start OOO connection */ data.input.conn_type = ECORE_LL2_TYPE_OOO; data.input.mtu = params->max_mtu; n_ooo_bufs = params->iwarp.ooo_num_rx_bufs; if (n_ooo_bufs > ECORE_IWARP_LL2_OOO_MAX_RX_SIZE) n_ooo_bufs = ECORE_IWARP_LL2_OOO_MAX_RX_SIZE; data.input.rx_num_desc = n_ooo_bufs; data.input.rx_num_ooo_buffers = n_ooo_bufs; p_hwfn->p_rdma_info->iwarp.num_ooo_rx_bufs = data.input.rx_num_desc; data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ data.input.tx_num_desc = ECORE_IWARP_LL2_OOO_DEF_TX_SIZE; data.p_connection_handle = &iwarp_info->ll2_ooo_handle; data.input.secondary_queue = true; rc = ecore_ll2_acquire_connection(p_hwfn, &data); if (rc) goto err; rc = ecore_ll2_establish_connection(p_hwfn, iwarp_info->ll2_ooo_handle); if (rc) goto err; /* Start MPA connection */ cbs.rx_comp_cb = ecore_iwarp_ll2_comp_mpa_pkt; cbs.slowpath_cb = ecore_iwarp_ll2_slowpath; OSAL_MEMSET(&data, 0, sizeof(data)); data.input.conn_type = ECORE_LL2_TYPE_IWARP; data.input.mtu = params->max_mtu; data.input.rx_num_desc = n_ooo_bufs * 2; /* we allocate the same amount for TX to reduce the chance we * run out of tx descriptors */ data.input.tx_num_desc = data.input.rx_num_desc; data.input.tx_max_bds_per_packet = ECORE_IWARP_MAX_BDS_PER_FPDU; data.p_connection_handle = &iwarp_info->ll2_mpa_handle; data.input.secondary_queue = true; data.cbs = &cbs; rc = ecore_ll2_acquire_connection(p_hwfn, &data); if (rc) goto err; rc = ecore_ll2_establish_connection(p_hwfn, iwarp_info->ll2_mpa_handle); if (rc) goto err; mpa_buff_size = ECORE_IWARP_MAX_BUF_SIZE(params->max_mtu); rc = ecore_iwarp_ll2_alloc_buffers(p_hwfn, data.input.rx_num_desc, mpa_buff_size, iwarp_info->ll2_mpa_handle); if (rc) goto err; iwarp_info->partial_fpdus = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*iwarp_info->partial_fpdus) * (u16)p_hwfn->p_rdma_info->num_qps); if (!iwarp_info->partial_fpdus) { DP_NOTICE(p_hwfn, false, "Failed to allocate ecore_iwarp_info(partial_fpdus)\n"); goto err; } iwarp_info->max_num_partial_fpdus = (u16)p_hwfn->p_rdma_info->num_qps; /* 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 = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*iwarp_info->mpa_bufs) * data.input.rx_num_desc); if (!iwarp_info->mpa_bufs) { DP_NOTICE(p_hwfn, false, "Failed to allocate mpa_bufs array mem_size=%d\n", (u32)(sizeof(*iwarp_info->mpa_bufs) * data.input.rx_num_desc)); goto err; } iwarp_info->mpa_intermediate_buf = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, mpa_buff_size); if (!iwarp_info->mpa_intermediate_buf) { DP_NOTICE(p_hwfn, false, "Failed to allocate mpa_intermediate_buf mem_size=%d\n", mpa_buff_size); goto err; } OSAL_LIST_INIT(&iwarp_info->mpa_buf_pending_list); OSAL_LIST_INIT(&iwarp_info->mpa_buf_list); for (i = 0; i < data.input.rx_num_desc; i++) { OSAL_LIST_PUSH_TAIL(&iwarp_info->mpa_bufs[i].list_entry, &iwarp_info->mpa_buf_list); } return rc; err: ecore_iwarp_ll2_stop(p_hwfn); return rc; } static void ecore_iwarp_set_defaults(struct ecore_hwfn *p_hwfn, struct ecore_rdma_start_in_params *params) { u32 rcv_wnd_size; u32 n_ooo_bufs; /* rcv_wnd_size = 0: use defaults */ rcv_wnd_size = params->iwarp.rcv_wnd_size; if (!rcv_wnd_size) { if (ecore_device_num_ports(p_hwfn->p_dev) == 4) { rcv_wnd_size = ECORE_IS_AH(p_hwfn->p_dev) ? ECORE_IWARP_RCV_WND_SIZE_AH_DEF_4_PORTS : ECORE_IWARP_RCV_WND_SIZE_BB_DEF_4_PORTS; } else { rcv_wnd_size = ECORE_IS_AH(p_hwfn->p_dev) ? ECORE_IWARP_RCV_WND_SIZE_AH_DEF_2_PORTS : ECORE_IWARP_RCV_WND_SIZE_BB_DEF_2_PORTS; } params->iwarp.rcv_wnd_size = rcv_wnd_size; } n_ooo_bufs = params->iwarp.ooo_num_rx_bufs; if (!n_ooo_bufs) { n_ooo_bufs = (u32)(((u64)ECORE_MAX_OOO * params->iwarp.rcv_wnd_size) / params->max_mtu); n_ooo_bufs = OSAL_MIN_T(u32, n_ooo_bufs, USHRT_MAX); params->iwarp.ooo_num_rx_bufs = (u16)n_ooo_bufs; } } enum _ecore_status_t ecore_iwarp_setup(struct ecore_hwfn *p_hwfn, struct ecore_rdma_start_in_params *params) { enum _ecore_status_t rc = ECORE_SUCCESS; struct ecore_iwarp_info *iwarp_info; u32 rcv_wnd_size; iwarp_info = &(p_hwfn->p_rdma_info->iwarp); if (!params->iwarp.rcv_wnd_size || !params->iwarp.ooo_num_rx_bufs) ecore_iwarp_set_defaults(p_hwfn, params); /* Scale 0 will set window of 0xFFFC (64K -4). * Scale x will set window of 0xFFFC << (x) * Therefore we subtract log2(64K) so that result is 0 */ rcv_wnd_size = params->iwarp.rcv_wnd_size; if (rcv_wnd_size < ECORE_IWARP_RCV_WND_SIZE_MIN) rcv_wnd_size = ECORE_IWARP_RCV_WND_SIZE_MIN; iwarp_info->rcv_wnd_scale = OSAL_MIN_T(u32, OSAL_LOG2(rcv_wnd_size) - OSAL_LOG2(ECORE_IWARP_RCV_WND_SIZE_MIN), ECORE_IWARP_MAX_WND_SCALE); iwarp_info->rcv_wnd_size = rcv_wnd_size >> iwarp_info->rcv_wnd_scale; iwarp_info->tcp_flags = params->iwarp.flags; iwarp_info->crc_needed = params->iwarp.crc_needed; switch (params->iwarp.mpa_rev) { case ECORE_MPA_REV1: iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC; break; case ECORE_MPA_REV2: iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; break; } iwarp_info->peer2peer = params->iwarp.mpa_peer2peer; iwarp_info->rtr_type = MPA_RTR_TYPE_NONE; if (params->iwarp.mpa_rtr & ECORE_MPA_RTR_TYPE_ZERO_SEND) iwarp_info->rtr_type |= MPA_RTR_TYPE_ZERO_SEND; if (params->iwarp.mpa_rtr & ECORE_MPA_RTR_TYPE_ZERO_WRITE) iwarp_info->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE; if (params->iwarp.mpa_rtr & ECORE_MPA_RTR_TYPE_ZERO_READ) iwarp_info->rtr_type |= MPA_RTR_TYPE_ZERO_READ; //DAVIDS OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.qp_lock); OSAL_LIST_INIT(&p_hwfn->p_rdma_info->iwarp.ep_list); OSAL_LIST_INIT(&p_hwfn->p_rdma_info->iwarp.listen_list); ecore_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP, ecore_iwarp_async_event); ecore_ooo_setup(p_hwfn); rc = ecore_iwarp_ll2_start(p_hwfn, params); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "MPA_REV = %d. peer2peer=%d rtr=%x\n", iwarp_info->mpa_rev, iwarp_info->peer2peer, iwarp_info->rtr_type); return rc; } enum _ecore_status_t ecore_iwarp_stop(struct ecore_hwfn *p_hwfn) { enum _ecore_status_t rc; ecore_iwarp_free_prealloc_ep(p_hwfn); rc = ecore_iwarp_wait_for_all_cids(p_hwfn); if (rc != ECORE_SUCCESS) return rc; ecore_spq_unregister_async_cb(p_hwfn, PROTOCOLID_IWARP); return ecore_iwarp_ll2_stop(p_hwfn); } static void ecore_iwarp_qp_in_error(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep, u8 fw_return_code) { struct ecore_iwarp_cm_event_params params; ecore_iwarp_modify_qp(p_hwfn, ep->qp, ECORE_IWARP_QP_STATE_ERROR, true); params.event = ECORE_IWARP_EVENT_CLOSE; params.ep_context = ep; params.cm_info = &ep->cm_info; params.status = (fw_return_code == IWARP_QP_IN_ERROR_GOOD_CLOSE) ? ECORE_SUCCESS : ECORE_CONN_RESET; ep->state = ECORE_IWARP_EP_CLOSED; OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); ep->event_cb(ep->cb_context, ¶ms); } static void ecore_iwarp_exception_received(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep, int fw_ret_code) { struct ecore_iwarp_cm_event_params params; bool event_cb = false; DP_VERBOSE(p_hwfn, ECORE_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 = ECORE_SUCCESS; params.event = ECORE_IWARP_EVENT_DISCONNECT; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_LLP_RESET: params.status = ECORE_CONN_RESET; params.event = ECORE_IWARP_EVENT_DISCONNECT; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_RQ_EMPTY: params.event = ECORE_IWARP_EVENT_RQ_EMPTY; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_IRQ_FULL: params.event = ECORE_IWARP_EVENT_IRQ_FULL; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_LLP_TIMEOUT: params.event = ECORE_IWARP_EVENT_LLP_TIMEOUT; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_REMOTE_PROTECTION_ERROR: params.event = ECORE_IWARP_EVENT_REMOTE_PROTECTION_ERROR; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_CQ_OVERFLOW: params.event = ECORE_IWARP_EVENT_CQ_OVERFLOW; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_LOCAL_CATASTROPHIC: params.event = ECORE_IWARP_EVENT_QP_CATASTROPHIC; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_LOCAL_ACCESS_ERROR: params.event = ECORE_IWARP_EVENT_LOCAL_ACCESS_ERROR; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_REMOTE_OPERATION_ERROR: params.event = ECORE_IWARP_EVENT_REMOTE_OPERATION_ERROR; event_cb = true; break; case IWARP_EXCEPTION_DETECTED_TERMINATE_RECEIVED: params.event = ECORE_IWARP_EVENT_TERMINATE_RECEIVED; event_cb = true; break; default: DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Unhandled exception received...\n"); break; } if (event_cb) { params.ep_context = ep; params.cm_info = &ep->cm_info; ep->event_cb(ep->cb_context, ¶ms); } } static void ecore_iwarp_tcp_connect_unsuccessful(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep, u8 fw_return_code) { struct ecore_iwarp_cm_event_params params; OSAL_MEM_ZERO(¶ms, sizeof(params)); params.event = ECORE_IWARP_EVENT_ACTIVE_COMPLETE; params.ep_context = ep; params.cm_info = &ep->cm_info; ep->state = ECORE_IWARP_EP_CLOSED; switch (fw_return_code) { case IWARP_CONN_ERROR_TCP_CONNECT_INVALID_PACKET: DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "%s(0x%x) TCP connect got invalid packet\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); params.status = ECORE_CONN_RESET; break; case IWARP_CONN_ERROR_TCP_CONNECTION_RST: DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "%s(0x%x) TCP Connection Reset\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); params.status = ECORE_CONN_RESET; break; case IWARP_CONN_ERROR_TCP_CONNECT_TIMEOUT: DP_NOTICE(p_hwfn, false, "%s(0x%x) TCP timeout\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); params.status = ECORE_TIMEOUT; break; case IWARP_CONN_ERROR_MPA_NOT_SUPPORTED_VER: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA not supported VER\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); params.status = ECORE_CONN_REFUSED; break; case IWARP_CONN_ERROR_MPA_INVALID_PACKET: DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Invalid Packet\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); params.status = ECORE_CONN_RESET; break; default: DP_ERR(p_hwfn, "%s(0x%x) Unexpected return code tcp connect: %d\n", ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid, fw_return_code); params.status = ECORE_CONN_RESET; break; } if (ep->connect_mode == TCP_CONNECT_PASSIVE) { ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; ecore_iwarp_return_ep(p_hwfn, ep); } else { ep->event_cb(ep->cb_context, ¶ms); OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); } } static void ecore_iwarp_connect_complete(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep, u8 fw_return_code) { if (ep->connect_mode == TCP_CONNECT_PASSIVE) { /* Done with the SYN packet, post back to ll2 rx */ ecore_iwarp_ll2_post_rx( p_hwfn, ep->syn, p_hwfn->p_rdma_info->iwarp.ll2_syn_handle); ep->syn = OSAL_NULL; if (ep->state == ECORE_IWARP_EP_ABORTING) return; /* If connect failed - upper layer doesn't know about it */ if (fw_return_code == RDMA_RETURN_OK) ecore_iwarp_mpa_received(p_hwfn, ep); else ecore_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, fw_return_code); } else { if (fw_return_code == RDMA_RETURN_OK) ecore_iwarp_mpa_offload(p_hwfn, ep); else ecore_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, fw_return_code); } } static OSAL_INLINE bool ecore_iwarp_check_ep_ok(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_ep *ep) { if (ep == OSAL_NULL) { DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep); return false; } if (ep->sig != 0xdeadbeef) { DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep); return false; } return true; } static enum _ecore_status_t ecore_iwarp_async_event(struct ecore_hwfn *p_hwfn, u8 fw_event_code, u16 OSAL_UNUSED echo, union event_ring_data *data, u8 fw_return_code) { struct regpair *fw_handle = &data->rdma_data.async_handle; struct ecore_iwarp_ep *ep = OSAL_NULL; u16 cid; ep = (struct ecore_iwarp_ep *)(osal_uintptr_t)HILO_64(fw_handle->hi, fw_handle->lo); switch (fw_event_code) { /* Async completion after TCP 3-way handshake */ case IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE: if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) return ECORE_INVAL; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "EP(0x%x) IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE fw_ret_code=%d\n", ep->tcp_cid, fw_return_code); ecore_iwarp_connect_complete(p_hwfn, ep, fw_return_code); break; case IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED: if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) return ECORE_INVAL; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED fw_ret_code=%d\n", ep->cid, fw_return_code); ecore_iwarp_exception_received(p_hwfn, ep, fw_return_code); break; /* Async completion for Close Connection ramrod */ case IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE: if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) return ECORE_INVAL; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE fw_ret_code=%d\n", ep->cid, fw_return_code); ecore_iwarp_qp_in_error(p_hwfn, ep, fw_return_code); break; /* Async event for active side only */ case IWARP_EVENT_TYPE_ASYNC_ENHANCED_MPA_REPLY_ARRIVED: if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) return ECORE_INVAL; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_MPA_REPLY_ARRIVED fw_ret_code=%d\n", ep->cid, fw_return_code); ecore_iwarp_mpa_reply_arrived(p_hwfn, ep); break; /* MPA Negotiations completed */ case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE: if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) return ECORE_INVAL; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE fw_ret_code=%d\n", ep->cid, fw_return_code); ecore_iwarp_mpa_complete(p_hwfn, ep, fw_return_code); break; case IWARP_EVENT_TYPE_ASYNC_CID_CLEANED: cid = (u16)OSAL_LE32_TO_CPU(fw_handle->lo); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "(0x%x)IWARP_EVENT_TYPE_ASYNC_CID_CLEANED\n", cid); ecore_iwarp_cid_cleaned(p_hwfn, cid); break; case IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW: DP_NOTICE(p_hwfn, false, "IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW\n"); p_hwfn->p_rdma_info->events.affiliated_event( p_hwfn->p_rdma_info->events.context, ECORE_IWARP_EVENT_CQ_OVERFLOW, (void *)fw_handle); break; default: DP_ERR(p_hwfn, "Received unexpected async iwarp event %d\n", fw_event_code); return ECORE_INVAL; } return ECORE_SUCCESS; } enum _ecore_status_t ecore_iwarp_create_listen(void *rdma_cxt, struct ecore_iwarp_listen_in *iparams, struct ecore_iwarp_listen_out *oparams) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_iwarp_listener *listener; listener = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*listener)); if (!listener) { DP_NOTICE(p_hwfn, false, "ecore iwarp create listener failed: cannot allocate memory (listener). rc = %d\n", ECORE_NOMEM); return ECORE_NOMEM; } listener->ip_version = iparams->ip_version; OSAL_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; listener->state = ECORE_IWARP_LISTENER_STATE_ACTIVE; oparams->handle = listener; OSAL_SPIN_LOCK_INIT(&listener->lock); OSAL_LIST_INIT(&listener->ep_list); OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); OSAL_LIST_PUSH_TAIL(&listener->list_entry, &p_hwfn->p_rdma_info->iwarp.listen_list); OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); DP_VERBOSE(p_hwfn, ECORE_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 ECORE_SUCCESS; } static void ecore_iwarp_pause_complete(struct ecore_iwarp_listener *listener) { struct ecore_iwarp_cm_event_params params; if (listener->state == ECORE_IWARP_LISTENER_STATE_UNPAUSE) listener->state = ECORE_IWARP_LISTENER_STATE_ACTIVE; params.event = ECORE_IWARP_EVENT_LISTEN_PAUSE_COMP; listener->event_cb(listener->cb_context, ¶ms); } static void ecore_iwarp_tcp_abort_comp(struct ecore_hwfn *p_hwfn, void *cookie, union event_ring_data OSAL_UNUSED *data, u8 OSAL_UNUSED fw_return_code) { struct ecore_iwarp_ep *ep = (struct ecore_iwarp_ep *)cookie; struct ecore_iwarp_listener *listener = ep->listener; ecore_iwarp_return_ep(p_hwfn, ep); if (OSAL_LIST_IS_EMPTY(&listener->ep_list)) listener->done = true; } static void ecore_iwarp_abort_inflight_connections(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_listener *listener) { struct ecore_spq_entry *p_ent = OSAL_NULL; struct ecore_iwarp_ep *ep = OSAL_NULL; struct ecore_sp_init_data init_data; struct ecore_spq_comp_cb comp_data; enum _ecore_status_t rc; /* remove listener from list before destroying listener */ OSAL_LIST_REMOVE_ENTRY(&listener->list_entry, &p_hwfn->p_rdma_info->iwarp.listen_list); if (OSAL_LIST_IS_EMPTY(&listener->ep_list)) { listener->done = true; return; } OSAL_MEMSET(&init_data, 0, sizeof(init_data)); init_data.p_comp_data = &comp_data; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = ECORE_SPQ_MODE_CB; init_data.p_comp_data->function = ecore_iwarp_tcp_abort_comp; OSAL_LIST_FOR_EACH_ENTRY(ep, &listener->ep_list, list_entry, struct ecore_iwarp_ep) { ep->state = ECORE_IWARP_EP_ABORTING; init_data.p_comp_data->cookie = ep; init_data.cid = ep->tcp_cid; rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_ABORT_TCP_OFFLOAD, PROTOCOLID_IWARP, &init_data); if (rc == ECORE_SUCCESS) ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); } } static void ecore_iwarp_listener_state_transition(struct ecore_hwfn *p_hwfn, void *cookie, union event_ring_data OSAL_UNUSED *data, u8 OSAL_UNUSED fw_return_code) { struct ecore_iwarp_listener *listener = (struct ecore_iwarp_listener *)cookie; switch (listener->state) { case ECORE_IWARP_LISTENER_STATE_PAUSE: case ECORE_IWARP_LISTENER_STATE_UNPAUSE: ecore_iwarp_pause_complete(listener); break; case ECORE_IWARP_LISTENER_STATE_DESTROYING: ecore_iwarp_abort_inflight_connections(p_hwfn, listener); break; default: break; } } static enum _ecore_status_t ecore_iwarp_empty_ramrod(struct ecore_hwfn *p_hwfn, struct ecore_iwarp_listener *listener) { struct ecore_spq_entry *p_ent = OSAL_NULL; struct ecore_spq_comp_cb comp_data; struct ecore_sp_init_data init_data; enum _ecore_status_t rc; OSAL_MEMSET(&init_data, 0, sizeof(init_data)); init_data.p_comp_data = &comp_data; init_data.cid = ecore_spq_get_cid(p_hwfn); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = ECORE_SPQ_MODE_CB; init_data.p_comp_data->function = ecore_iwarp_listener_state_transition; init_data.p_comp_data->cookie = listener; rc = ecore_sp_init_request(p_hwfn, &p_ent, COMMON_RAMROD_EMPTY, PROTOCOLID_COMMON, &init_data); if (rc != ECORE_SUCCESS) return rc; rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); if (rc != ECORE_SUCCESS) return rc; return rc; } enum _ecore_status_t ecore_iwarp_pause_listen(void *rdma_cxt, void *handle, bool pause, bool comp) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_iwarp_listener *listener = (struct ecore_iwarp_listener *)handle; enum _ecore_status_t rc; listener->state = pause ? ECORE_IWARP_LISTENER_STATE_PAUSE : ECORE_IWARP_LISTENER_STATE_UNPAUSE; if (!comp) return ECORE_SUCCESS; rc = ecore_iwarp_empty_ramrod(p_hwfn, listener); if (rc != ECORE_SUCCESS) return rc; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "listener=%p, state=%d\n", listener, listener->state); return ECORE_PENDING; } enum _ecore_status_t ecore_iwarp_destroy_listen(void *rdma_cxt, void *handle) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_iwarp_listener *listener = (struct ecore_iwarp_listener *)handle; enum _ecore_status_t rc; int wait_count = 0; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "handle=%p\n", handle); listener->state = ECORE_IWARP_LISTENER_STATE_DESTROYING; rc = ecore_iwarp_empty_ramrod(p_hwfn, listener); if (rc != ECORE_SUCCESS) return rc; while (!listener->done) { DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Waiting for ep list to be empty...\n"); OSAL_MSLEEP(100); if (wait_count++ > 200) { DP_NOTICE(p_hwfn, false, "ep list close timeout\n"); break; } } OSAL_FREE(p_hwfn->p_dev, listener); return ECORE_SUCCESS; } enum _ecore_status_t ecore_iwarp_send_rtr(void *rdma_cxt, struct ecore_iwarp_send_rtr_in *iparams) { struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; struct ecore_sp_init_data init_data; struct ecore_spq_entry *p_ent; struct ecore_rdma_qp *qp; struct ecore_iwarp_ep *ep; enum _ecore_status_t rc; ep = (struct ecore_iwarp_ep *)iparams->ep_context; if (!ep) { DP_ERR(p_hwfn, "Ep Context receive in send_rtr is NULL\n"); return ECORE_INVAL; } qp = ep->qp; DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", qp->icid, ep->tcp_cid); OSAL_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 = ECORE_SPQ_MODE_CB; rc = ecore_sp_init_request(p_hwfn, &p_ent, IWARP_RAMROD_CMD_ID_MPA_OFFLOAD_SEND_RTR, PROTOCOLID_IWARP, &init_data); if (rc != ECORE_SUCCESS) return rc; rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ecore_iwarp_send_rtr, rc = 0x%x\n", rc); return rc; } enum _ecore_status_t ecore_iwarp_query_qp(struct ecore_rdma_qp *qp, struct ecore_rdma_query_qp_out_params *out_params) { out_params->state = ecore_iwarp2roce_state(qp->iwarp_state); return ECORE_SUCCESS; } #ifdef _NTDDK_ #pragma warning(pop) #endif