From patchwork Wed Oct 16 12:27:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weihang Li X-Patchwork-Id: 11193273 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8AEE776 for ; Wed, 16 Oct 2019 12:31:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 63A1C20854 for ; Wed, 16 Oct 2019 12:31:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733106AbfJPMbM (ORCPT ); Wed, 16 Oct 2019 08:31:12 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:38952 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1733070AbfJPMbM (ORCPT ); Wed, 16 Oct 2019 08:31:12 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 68C90B28B6F112807D13; Wed, 16 Oct 2019 20:31:09 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.439.0; Wed, 16 Oct 2019 20:31:01 +0800 From: Weihang Li To: , CC: , Subject: [PATCH v5 rdma-core 3/4] libhns: Refactor for post send Date: Wed, 16 Oct 2019 20:27:35 +0800 Message-ID: <1571228856-9573-4-git-send-email-liweihang@hisilicon.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1571228856-9573-1-git-send-email-liweihang@hisilicon.com> References: <1571228856-9573-1-git-send-email-liweihang@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Yixian Liu This patch refactors the interface of hns_roce_u_v2_post_send, which is now very complicated. We reduce the complexity with following points: 1. Separate RC server into a function. 2. Simplify and separate the process of sge. 3. Keep the logic and consistence of all operations. Signed-off-by: Yixian Liu Signed-off-by: Weihang Li --- providers/hns/hns_roce_u.h | 10 + providers/hns/hns_roce_u_hw_v2.c | 427 ++++++++++++++++----------------------- 2 files changed, 189 insertions(+), 248 deletions(-) diff --git a/providers/hns/hns_roce_u.h b/providers/hns/hns_roce_u.h index 31664c1..45e8099 100644 --- a/providers/hns/hns_roce_u.h +++ b/providers/hns/hns_roce_u.h @@ -69,6 +69,9 @@ #define HNS_ROCE_TPTR_OFFSET 0x1000 #define HNS_ROCE_STATIC_RATE 3 /* Gbps */ +#define HNS_ROCE_ADDRESS_MASK 0xFFFFFFFF +#define HNS_ROCE_ADDRESS_SHIFT 32 + #define roce_get_field(origin, mask, shift) \ (((le32toh(origin)) & (mask)) >> (shift)) @@ -205,6 +208,13 @@ struct hns_roce_wq { int offset; }; +/* record the result of sge process */ +struct hns_roce_sge_info { + unsigned int valid_num; /* sge length is not 0 */ + unsigned int start_idx; /* start position of extend sge */ + unsigned int total_len; /* total length of valid sges */ +}; + struct hns_roce_sge_ex { int offset; unsigned int sge_cnt; diff --git a/providers/hns/hns_roce_u_hw_v2.c b/providers/hns/hns_roce_u_hw_v2.c index 4dbbc7e..4eb493c 100644 --- a/providers/hns/hns_roce_u_hw_v2.c +++ b/providers/hns/hns_roce_u_hw_v2.c @@ -609,28 +609,188 @@ static int hns_roce_u_v2_arm_cq(struct ibv_cq *ibvcq, int solicited) return 0; } +static void set_sge(struct hns_roce_v2_wqe_data_seg *dseg, + struct hns_roce_qp *qp, struct ibv_send_wr *wr, + struct hns_roce_sge_info *sge_info) +{ + int i; + + sge_info->valid_num = 0; + sge_info->total_len = 0; + + for (i = 0; i < wr->num_sge; i++) { + if (unlikely(!wr->sg_list[i].length)) + continue; + + sge_info->total_len += wr->sg_list[i].length; + sge_info->valid_num++; + + /* No inner sge in UD wqe */ + if (sge_info->valid_num <= HNS_ROCE_SGE_IN_WQE && + qp->ibv_qp.qp_type != IBV_QPT_UD) { + set_data_seg_v2(dseg, wr->sg_list + i); + dseg++; + } else { + dseg = get_send_sge_ex(qp, sge_info->start_idx & + (qp->sge.sge_cnt - 1)); + set_data_seg_v2(dseg, wr->sg_list + i); + sge_info->start_idx++; + } + } +} + +static int set_rc_wqe(void *wqe, struct hns_roce_qp *qp, struct ibv_send_wr *wr, + int nreq, struct hns_roce_sge_info *sge_info) +{ + struct hns_roce_rc_sq_wqe *rc_sq_wqe = wqe; + struct hns_roce_v2_wqe_data_seg *dseg; + int hr_op; + int i; + + memset(rc_sq_wqe, 0, sizeof(struct hns_roce_rc_sq_wqe)); + + switch (wr->opcode) { + case IBV_WR_RDMA_READ: + hr_op = HNS_ROCE_WQE_OP_RDMA_READ; + rc_sq_wqe->va = htole64(wr->wr.rdma.remote_addr); + rc_sq_wqe->rkey = htole32(wr->wr.rdma.rkey); + break; + case IBV_WR_RDMA_WRITE: + hr_op = HNS_ROCE_WQE_OP_RDMA_WRITE; + rc_sq_wqe->va = htole64(wr->wr.rdma.remote_addr); + rc_sq_wqe->rkey = htole32(wr->wr.rdma.rkey); + break; + case IBV_WR_RDMA_WRITE_WITH_IMM: + hr_op = HNS_ROCE_WQE_OP_RDMA_WRITE_WITH_IMM; + rc_sq_wqe->va = htole64(wr->wr.rdma.remote_addr); + rc_sq_wqe->rkey = htole32(wr->wr.rdma.rkey); + rc_sq_wqe->immtdata = htole32(be32toh(wr->imm_data)); + break; + case IBV_WR_SEND: + hr_op = HNS_ROCE_WQE_OP_SEND; + break; + case IBV_WR_SEND_WITH_INV: + hr_op = HNS_ROCE_WQE_OP_SEND_WITH_INV; + rc_sq_wqe->inv_key = htole32(wr->invalidate_rkey); + break; + case IBV_WR_SEND_WITH_IMM: + hr_op = HNS_ROCE_WQE_OP_SEND_WITH_IMM; + rc_sq_wqe->immtdata = htole32(be32toh(wr->imm_data)); + break; + case IBV_WR_LOCAL_INV: + hr_op = HNS_ROCE_WQE_OP_LOCAL_INV; + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_SO_S, 1); + rc_sq_wqe->inv_key = htole32(wr->invalidate_rkey); + break; + case IBV_WR_BIND_MW: + hr_op = HNS_ROCE_WQE_OP_BIND_MW_TYPE; + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_MW_TYPE_S, + wr->bind_mw.mw->type - 1); + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_ATOMIC_S, + (wr->bind_mw.bind_info.mw_access_flags & + IBV_ACCESS_REMOTE_ATOMIC) ? 1 : 0); + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_RDMA_READ_S, + (wr->bind_mw.bind_info.mw_access_flags & + IBV_ACCESS_REMOTE_READ) ? 1 : 0); + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_RDMA_WRITE_S, + (wr->bind_mw.bind_info.mw_access_flags & + IBV_ACCESS_REMOTE_WRITE) ? 1 : 0); + rc_sq_wqe->new_rkey = htole32(wr->bind_mw.rkey); + rc_sq_wqe->byte_16 = htole32(wr->bind_mw.bind_info.length & + HNS_ROCE_ADDRESS_MASK); + rc_sq_wqe->byte_20 = htole32(wr->bind_mw.bind_info.length >> + HNS_ROCE_ADDRESS_SHIFT); + rc_sq_wqe->rkey = htole32(wr->bind_mw.bind_info.mr->rkey); + rc_sq_wqe->va = htole64(wr->bind_mw.bind_info.addr); + break; + case IBV_WR_ATOMIC_CMP_AND_SWP: + hr_op = HNS_ROCE_WQE_OP_ATOMIC_COM_AND_SWAP; + rc_sq_wqe->rkey = htole32(wr->wr.atomic.rkey); + rc_sq_wqe->va = htole64(wr->wr.atomic.remote_addr); + break; + case IBV_WR_ATOMIC_FETCH_AND_ADD: + hr_op = HNS_ROCE_WQE_OP_ATOMIC_FETCH_AND_ADD; + rc_sq_wqe->rkey = htole32(wr->wr.atomic.rkey); + rc_sq_wqe->va = htole64(wr->wr.atomic.remote_addr); + break; + default: + hr_op = HNS_ROCE_WQE_OP_MASK; + return -EINVAL; + } + + roce_set_field(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_OPCODE_M, + RC_SQ_WQE_BYTE_4_OPCODE_S, hr_op); + + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_CQE_S, + (wr->send_flags & IBV_SEND_SIGNALED) ? 1 : 0); + + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_FENCE_S, + (wr->send_flags & IBV_SEND_FENCE) ? 1 : 0); + + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_SE_S, + (wr->send_flags & IBV_SEND_SOLICITED) ? 1 : 0); + + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_OWNER_S, + ~(((qp->sq.head + nreq) >> qp->sq.shift) & 0x1)); + + roce_set_field(rc_sq_wqe->byte_20, + RC_SQ_WQE_BYTE_20_MSG_START_SGE_IDX_M, + RC_SQ_WQE_BYTE_20_MSG_START_SGE_IDX_S, + sge_info->start_idx & (qp->sge.sge_cnt - 1)); + + if (wr->opcode == IBV_WR_BIND_MW) + return 0; + + wqe += sizeof(struct hns_roce_rc_sq_wqe); + dseg = wqe; + + set_sge(dseg, qp, wr, sge_info); + + rc_sq_wqe->msg_len = htole32(sge_info->total_len); + + roce_set_field(rc_sq_wqe->byte_16, RC_SQ_WQE_BYTE_16_SGE_NUM_M, + RC_SQ_WQE_BYTE_16_SGE_NUM_S, sge_info->valid_num); + + if (wr->opcode == IBV_WR_ATOMIC_FETCH_AND_ADD || + wr->opcode == IBV_WR_ATOMIC_CMP_AND_SWP) { + dseg++; + set_atomic_seg((struct hns_roce_wqe_atomic_seg *)dseg, wr); + return 0; + } + + if (wr->send_flags & IBV_SEND_INLINE) { + if (wr->opcode == IBV_WR_RDMA_READ) + return -EINVAL; + + if (sge_info->total_len > qp->max_inline_data) + return -EINVAL; + + for (i = 0; i < wr->num_sge; i++) { + memcpy(dseg, (void *)(uintptr_t)(wr->sg_list[i].addr), + wr->sg_list[i].length); + dseg += wr->sg_list[i].length; + } + roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_INLINE_S, 1); + } + + return 0; +} + int hns_roce_u_v2_post_send(struct ibv_qp *ibvqp, struct ibv_send_wr *wr, struct ibv_send_wr **bad_wr) { struct hns_roce_context *ctx = to_hr_ctx(ibvqp->context); struct hns_roce_qp *qp = to_hr_qp(ibvqp); - struct hns_roce_v2_wqe_data_seg *dseg; - struct hns_roce_rc_sq_wqe *rc_sq_wqe; + struct hns_roce_sge_info sge_info = {}; struct ibv_qp_attr attr; unsigned int wqe_idx; - unsigned int sge_idx; - int valid_num_sge; int attr_mask; int ret = 0; void *wqe; int nreq; - int j; - int i; pthread_spin_lock(&qp->sq.lock); - sge_idx = qp->next_sge; - /* check that state is OK to post send */ if (ibvqp->state == IBV_QPS_RESET || ibvqp->state == IBV_QPS_INIT || ibvqp->state == IBV_QPS_RTR) { @@ -639,6 +799,8 @@ int hns_roce_u_v2_post_send(struct ibv_qp *ibvqp, struct ibv_send_wr *wr, return EINVAL; } + sge_info.start_idx = qp->next_sge; /* start index of extend sge */ + for (nreq = 0; wr; ++nreq, wr = wr->next) { if (hns_roce_v2_wq_overflow(&qp->sq, nreq, to_hr_cq(qp->ibv_qp.send_cq))) { @@ -647,274 +809,43 @@ int hns_roce_u_v2_post_send(struct ibv_qp *ibvqp, struct ibv_send_wr *wr, goto out; } - wqe_idx = (qp->sq.head + nreq) % qp->sq.wqe_cnt; - if (wr->num_sge > qp->sq.max_gs) { ret = EINVAL; *bad_wr = wr; goto out; } + wqe_idx = (qp->sq.head + nreq) % qp->sq.wqe_cnt; wqe = get_send_wqe(qp, wqe_idx); - rc_sq_wqe = wqe; - - memset(rc_sq_wqe, 0, sizeof(struct hns_roce_rc_sq_wqe)); qp->sq.wrid[wqe_idx] = wr->wr_id; - valid_num_sge = wr->num_sge; - j = 0; - - for (i = 0; i < wr->num_sge; i++) { - if (unlikely(!wr->sg_list[i].length)) - valid_num_sge--; - - rc_sq_wqe->msg_len = - htole32(le32toh(rc_sq_wqe->msg_len) + - wr->sg_list[i].length); - } - - if (wr->opcode == IBV_WR_SEND_WITH_IMM || - wr->opcode == IBV_WR_RDMA_WRITE_WITH_IMM) - rc_sq_wqe->immtdata = htole32(be32toh(wr->imm_data)); - - roce_set_field(rc_sq_wqe->byte_16, RC_SQ_WQE_BYTE_16_SGE_NUM_M, - RC_SQ_WQE_BYTE_16_SGE_NUM_S, valid_num_sge); - - roce_set_field(rc_sq_wqe->byte_20, - RC_SQ_WQE_BYTE_20_MSG_START_SGE_IDX_S, - RC_SQ_WQE_BYTE_20_MSG_START_SGE_IDX_S, - 0); - - roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_CQE_S, - (wr->send_flags & IBV_SEND_SIGNALED) ? 1 : 0); - - /* Set fence attr */ - roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_FENCE_S, - (wr->send_flags & IBV_SEND_FENCE) ? 1 : 0); - - /* Set solicited attr */ - roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_SE_S, - (wr->send_flags & IBV_SEND_SOLICITED) ? 1 : 0); - - roce_set_bit(rc_sq_wqe->byte_4, RC_SQ_WQE_BYTE_4_OWNER_S, - ~(((qp->sq.head + nreq) >> qp->sq.shift) & 0x1)); - - wqe += sizeof(struct hns_roce_rc_sq_wqe); - /* set remote addr segment */ switch (ibvqp->qp_type) { case IBV_QPT_RC: - switch (wr->opcode) { - case IBV_WR_RDMA_READ: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_RDMA_READ); - rc_sq_wqe->va = - htole64(wr->wr.rdma.remote_addr); - rc_sq_wqe->rkey = htole32(wr->wr.rdma.rkey); - break; - - case IBV_WR_RDMA_WRITE: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_RDMA_WRITE); - rc_sq_wqe->va = - htole64(wr->wr.rdma.remote_addr); - rc_sq_wqe->rkey = htole32(wr->wr.rdma.rkey); - break; - - case IBV_WR_RDMA_WRITE_WITH_IMM: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_RDMA_WRITE_WITH_IMM); - rc_sq_wqe->va = - htole64(wr->wr.rdma.remote_addr); - rc_sq_wqe->rkey = htole32(wr->wr.rdma.rkey); - break; - - case IBV_WR_SEND: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_SEND); - break; - case IBV_WR_SEND_WITH_INV: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_SEND_WITH_INV); - rc_sq_wqe->inv_key = - htole32(wr->invalidate_rkey); - break; - case IBV_WR_SEND_WITH_IMM: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_SEND_WITH_IMM); - break; - - case IBV_WR_LOCAL_INV: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_LOCAL_INV); - roce_set_bit(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_SO_S, 1); - rc_sq_wqe->inv_key = - htole32(wr->invalidate_rkey); - break; - case IBV_WR_ATOMIC_CMP_AND_SWP: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_ATOMIC_COM_AND_SWAP); - rc_sq_wqe->rkey = htole32(wr->wr.atomic.rkey); - rc_sq_wqe->va = - htole64(wr->wr.atomic.remote_addr); - break; - - case IBV_WR_ATOMIC_FETCH_AND_ADD: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_ATOMIC_FETCH_AND_ADD); - rc_sq_wqe->rkey = htole32(wr->wr.atomic.rkey); - rc_sq_wqe->va = - htole64(wr->wr.atomic.remote_addr); - break; - - case IBV_WR_BIND_MW: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_BIND_MW_TYPE); - roce_set_bit(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_MW_TYPE_S, - wr->bind_mw.mw->type - 1); - roce_set_bit(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_ATOMIC_S, - wr->bind_mw.bind_info.mw_access_flags & - IBV_ACCESS_REMOTE_ATOMIC ? 1 : 0); - roce_set_bit(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_RDMA_READ_S, - wr->bind_mw.bind_info.mw_access_flags & - IBV_ACCESS_REMOTE_READ ? 1 : 0); - roce_set_bit(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_RDMA_WRITE_S, - wr->bind_mw.bind_info.mw_access_flags & - IBV_ACCESS_REMOTE_WRITE ? 1 : 0); - - rc_sq_wqe->new_rkey = htole32(wr->bind_mw.rkey); - rc_sq_wqe->byte_16 = - htole32(wr->bind_mw.bind_info.length & - 0xffffffff); - rc_sq_wqe->byte_20 = - htole32(wr->bind_mw.bind_info.length >> - 32); - rc_sq_wqe->rkey = - htole32(wr->bind_mw.bind_info.mr->rkey); - rc_sq_wqe->va = - htole64(wr->bind_mw.bind_info.addr); - break; - - default: - roce_set_field(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_OPCODE_M, - RC_SQ_WQE_BYTE_4_OPCODE_S, - HNS_ROCE_WQE_OP_MASK); - printf("Not supported transport opcode %d\n", - wr->opcode); - break; + ret = set_rc_wqe(wqe, qp, wr, nreq, &sge_info); + if (ret) { + *bad_wr = wr; + goto out; } - break; case IBV_QPT_UC: case IBV_QPT_UD: default: - break; - } - - dseg = wqe; - if (wr->opcode == IBV_WR_ATOMIC_FETCH_AND_ADD || - wr->opcode == IBV_WR_ATOMIC_CMP_AND_SWP) { - set_data_seg_v2(dseg, wr->sg_list); - wqe += sizeof(struct hns_roce_v2_wqe_data_seg); - set_atomic_seg(wqe, wr); - } else if (wr->send_flags & IBV_SEND_INLINE && valid_num_sge) { - if (le32toh(rc_sq_wqe->msg_len) > qp->max_inline_data) { - ret = EINVAL; - *bad_wr = wr; - printf("data len=%d, send_flags = 0x%x!\r\n", - rc_sq_wqe->msg_len, wr->send_flags); - goto out; - } - - if (wr->opcode == IBV_WR_RDMA_READ) { - ret = EINVAL; - *bad_wr = wr; - printf("Not supported inline data!\n"); - goto out; - } - - for (i = 0; i < wr->num_sge; i++) { - memcpy(wqe, - ((void *) (uintptr_t) wr->sg_list[i].addr), - wr->sg_list[i].length); - wqe = wqe + wr->sg_list[i].length; - } - - roce_set_bit(rc_sq_wqe->byte_4, - RC_SQ_WQE_BYTE_4_INLINE_S, 1); - } else { - /* set sge */ - if (valid_num_sge <= HNS_ROCE_SGE_IN_WQE) { - for (i = 0; i < wr->num_sge; i++) - if (likely(wr->sg_list[i].length)) { - set_data_seg_v2(dseg, - wr->sg_list + i); - dseg++; - } - } else { - roce_set_field(rc_sq_wqe->byte_20, - RC_SQ_WQE_BYTE_20_MSG_START_SGE_IDX_M, - RC_SQ_WQE_BYTE_20_MSG_START_SGE_IDX_S, - sge_idx & (qp->sge.sge_cnt - 1)); - - for (i = 0; i < wr->num_sge && j < 2; i++) - if (likely(wr->sg_list[i].length)) { - set_data_seg_v2(dseg, - wr->sg_list + i); - dseg++; - j++; - } - - for (; i < wr->num_sge; i++) { - if (likely(wr->sg_list[i].length)) { - dseg = get_send_sge_ex(qp, - sge_idx & - (qp->sge.sge_cnt - 1)); - set_data_seg_v2(dseg, - wr->sg_list + i); - sge_idx++; - } - } - } + ret = -EINVAL; + *bad_wr = wr; + goto out; } } out: if (likely(nreq)) { qp->sq.head += nreq; + qp->next_sge = sge_info.start_idx; hns_roce_update_sq_db(ctx, qp->ibv_qp.qp_num, qp->sl, qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1)); if (qp->flags & HNS_ROCE_SUPPORT_SQ_RECORD_DB) *(qp->sdb) = qp->sq.head & 0xffff; - - qp->next_sge = sge_idx; } pthread_spin_unlock(&qp->sq.lock);