1e126ba97SEli Cohen /* 2e126ba97SEli Cohen * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. 3e126ba97SEli Cohen * 4e126ba97SEli Cohen * This software is available to you under a choice of one of two 5e126ba97SEli Cohen * licenses. You may choose to be licensed under the terms of the GNU 6e126ba97SEli Cohen * General Public License (GPL) Version 2, available from the file 7e126ba97SEli Cohen * COPYING in the main directory of this source tree, or the 8e126ba97SEli Cohen * OpenIB.org BSD license below: 9e126ba97SEli Cohen * 10e126ba97SEli Cohen * Redistribution and use in source and binary forms, with or 11e126ba97SEli Cohen * without modification, are permitted provided that the following 12e126ba97SEli Cohen * conditions are met: 13e126ba97SEli Cohen * 14e126ba97SEli Cohen * - Redistributions of source code must retain the above 15e126ba97SEli Cohen * copyright notice, this list of conditions and the following 16e126ba97SEli Cohen * disclaimer. 17e126ba97SEli Cohen * 18e126ba97SEli Cohen * - Redistributions in binary form must reproduce the above 19e126ba97SEli Cohen * copyright notice, this list of conditions and the following 20e126ba97SEli Cohen * disclaimer in the documentation and/or other materials 21e126ba97SEli Cohen * provided with the distribution. 22e126ba97SEli Cohen * 23e126ba97SEli Cohen * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e126ba97SEli Cohen * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e126ba97SEli Cohen * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e126ba97SEli Cohen * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e126ba97SEli Cohen * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e126ba97SEli Cohen * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e126ba97SEli Cohen * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e126ba97SEli Cohen * SOFTWARE. 31e126ba97SEli Cohen */ 32e126ba97SEli Cohen 33e126ba97SEli Cohen #include <linux/module.h> 34e126ba97SEli Cohen #include <rdma/ib_umem.h> 35e126ba97SEli Cohen #include "mlx5_ib.h" 36e126ba97SEli Cohen #include "user.h" 37e126ba97SEli Cohen 38e126ba97SEli Cohen /* not supported currently */ 39e126ba97SEli Cohen static int wq_signature; 40e126ba97SEli Cohen 41e126ba97SEli Cohen enum { 42e126ba97SEli Cohen MLX5_IB_ACK_REQ_FREQ = 8, 43e126ba97SEli Cohen }; 44e126ba97SEli Cohen 45e126ba97SEli Cohen enum { 46e126ba97SEli Cohen MLX5_IB_DEFAULT_SCHED_QUEUE = 0x83, 47e126ba97SEli Cohen MLX5_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f, 48e126ba97SEli Cohen MLX5_IB_LINK_TYPE_IB = 0, 49e126ba97SEli Cohen MLX5_IB_LINK_TYPE_ETH = 1 50e126ba97SEli Cohen }; 51e126ba97SEli Cohen 52e126ba97SEli Cohen enum { 53e126ba97SEli Cohen MLX5_IB_SQ_STRIDE = 6, 54e126ba97SEli Cohen MLX5_IB_CACHE_LINE_SIZE = 64, 55e126ba97SEli Cohen }; 56e126ba97SEli Cohen 57e126ba97SEli Cohen static const u32 mlx5_ib_opcode[] = { 58e126ba97SEli Cohen [IB_WR_SEND] = MLX5_OPCODE_SEND, 59e126ba97SEli Cohen [IB_WR_SEND_WITH_IMM] = MLX5_OPCODE_SEND_IMM, 60e126ba97SEli Cohen [IB_WR_RDMA_WRITE] = MLX5_OPCODE_RDMA_WRITE, 61e126ba97SEli Cohen [IB_WR_RDMA_WRITE_WITH_IMM] = MLX5_OPCODE_RDMA_WRITE_IMM, 62e126ba97SEli Cohen [IB_WR_RDMA_READ] = MLX5_OPCODE_RDMA_READ, 63e126ba97SEli Cohen [IB_WR_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_CS, 64e126ba97SEli Cohen [IB_WR_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_FA, 65e126ba97SEli Cohen [IB_WR_SEND_WITH_INV] = MLX5_OPCODE_SEND_INVAL, 66e126ba97SEli Cohen [IB_WR_LOCAL_INV] = MLX5_OPCODE_UMR, 67e126ba97SEli Cohen [IB_WR_FAST_REG_MR] = MLX5_OPCODE_UMR, 68e126ba97SEli Cohen [IB_WR_MASKED_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_MASKED_CS, 69e126ba97SEli Cohen [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_MASKED_FA, 70e126ba97SEli Cohen [MLX5_IB_WR_UMR] = MLX5_OPCODE_UMR, 71e126ba97SEli Cohen }; 72e126ba97SEli Cohen 73e126ba97SEli Cohen struct umr_wr { 74e126ba97SEli Cohen u64 virt_addr; 75e126ba97SEli Cohen struct ib_pd *pd; 76e126ba97SEli Cohen unsigned int page_shift; 77e126ba97SEli Cohen unsigned int npages; 78e126ba97SEli Cohen u32 length; 79e126ba97SEli Cohen int access_flags; 80e126ba97SEli Cohen u32 mkey; 81e126ba97SEli Cohen }; 82e126ba97SEli Cohen 83e126ba97SEli Cohen static int is_qp0(enum ib_qp_type qp_type) 84e126ba97SEli Cohen { 85e126ba97SEli Cohen return qp_type == IB_QPT_SMI; 86e126ba97SEli Cohen } 87e126ba97SEli Cohen 88e126ba97SEli Cohen static int is_qp1(enum ib_qp_type qp_type) 89e126ba97SEli Cohen { 90e126ba97SEli Cohen return qp_type == IB_QPT_GSI; 91e126ba97SEli Cohen } 92e126ba97SEli Cohen 93e126ba97SEli Cohen static int is_sqp(enum ib_qp_type qp_type) 94e126ba97SEli Cohen { 95e126ba97SEli Cohen return is_qp0(qp_type) || is_qp1(qp_type); 96e126ba97SEli Cohen } 97e126ba97SEli Cohen 98e126ba97SEli Cohen static void *get_wqe(struct mlx5_ib_qp *qp, int offset) 99e126ba97SEli Cohen { 100e126ba97SEli Cohen return mlx5_buf_offset(&qp->buf, offset); 101e126ba97SEli Cohen } 102e126ba97SEli Cohen 103e126ba97SEli Cohen static void *get_recv_wqe(struct mlx5_ib_qp *qp, int n) 104e126ba97SEli Cohen { 105e126ba97SEli Cohen return get_wqe(qp, qp->rq.offset + (n << qp->rq.wqe_shift)); 106e126ba97SEli Cohen } 107e126ba97SEli Cohen 108e126ba97SEli Cohen void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n) 109e126ba97SEli Cohen { 110e126ba97SEli Cohen return get_wqe(qp, qp->sq.offset + (n << MLX5_IB_SQ_STRIDE)); 111e126ba97SEli Cohen } 112e126ba97SEli Cohen 113e126ba97SEli Cohen static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type) 114e126ba97SEli Cohen { 115e126ba97SEli Cohen struct ib_qp *ibqp = &to_mibqp(qp)->ibqp; 116e126ba97SEli Cohen struct ib_event event; 117e126ba97SEli Cohen 118e126ba97SEli Cohen if (type == MLX5_EVENT_TYPE_PATH_MIG) 119e126ba97SEli Cohen to_mibqp(qp)->port = to_mibqp(qp)->alt_port; 120e126ba97SEli Cohen 121e126ba97SEli Cohen if (ibqp->event_handler) { 122e126ba97SEli Cohen event.device = ibqp->device; 123e126ba97SEli Cohen event.element.qp = ibqp; 124e126ba97SEli Cohen switch (type) { 125e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG: 126e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG; 127e126ba97SEli Cohen break; 128e126ba97SEli Cohen case MLX5_EVENT_TYPE_COMM_EST: 129e126ba97SEli Cohen event.event = IB_EVENT_COMM_EST; 130e126ba97SEli Cohen break; 131e126ba97SEli Cohen case MLX5_EVENT_TYPE_SQ_DRAINED: 132e126ba97SEli Cohen event.event = IB_EVENT_SQ_DRAINED; 133e126ba97SEli Cohen break; 134e126ba97SEli Cohen case MLX5_EVENT_TYPE_SRQ_LAST_WQE: 135e126ba97SEli Cohen event.event = IB_EVENT_QP_LAST_WQE_REACHED; 136e126ba97SEli Cohen break; 137e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: 138e126ba97SEli Cohen event.event = IB_EVENT_QP_FATAL; 139e126ba97SEli Cohen break; 140e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG_FAILED: 141e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG_ERR; 142e126ba97SEli Cohen break; 143e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: 144e126ba97SEli Cohen event.event = IB_EVENT_QP_REQ_ERR; 145e126ba97SEli Cohen break; 146e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: 147e126ba97SEli Cohen event.event = IB_EVENT_QP_ACCESS_ERR; 148e126ba97SEli Cohen break; 149e126ba97SEli Cohen default: 150e126ba97SEli Cohen pr_warn("mlx5_ib: Unexpected event type %d on QP %06x\n", type, qp->qpn); 151e126ba97SEli Cohen return; 152e126ba97SEli Cohen } 153e126ba97SEli Cohen 154e126ba97SEli Cohen ibqp->event_handler(&event, ibqp->qp_context); 155e126ba97SEli Cohen } 156e126ba97SEli Cohen } 157e126ba97SEli Cohen 158e126ba97SEli Cohen static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap, 159e126ba97SEli Cohen int has_rq, struct mlx5_ib_qp *qp, struct mlx5_ib_create_qp *ucmd) 160e126ba97SEli Cohen { 161c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 162e126ba97SEli Cohen int wqe_size; 163e126ba97SEli Cohen int wq_size; 164e126ba97SEli Cohen 165c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 166e126ba97SEli Cohen /* Sanity check RQ size before proceeding */ 167c7a08ac7SEli Cohen if (cap->max_recv_wr > gen->max_wqes) 168e126ba97SEli Cohen return -EINVAL; 169e126ba97SEli Cohen 170e126ba97SEli Cohen if (!has_rq) { 171e126ba97SEli Cohen qp->rq.max_gs = 0; 172e126ba97SEli Cohen qp->rq.wqe_cnt = 0; 173e126ba97SEli Cohen qp->rq.wqe_shift = 0; 174e126ba97SEli Cohen } else { 175e126ba97SEli Cohen if (ucmd) { 176e126ba97SEli Cohen qp->rq.wqe_cnt = ucmd->rq_wqe_count; 177e126ba97SEli Cohen qp->rq.wqe_shift = ucmd->rq_wqe_shift; 178e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 179e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 180e126ba97SEli Cohen } else { 181e126ba97SEli Cohen wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0; 182e126ba97SEli Cohen wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg); 183e126ba97SEli Cohen wqe_size = roundup_pow_of_two(wqe_size); 184e126ba97SEli Cohen wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size; 185e126ba97SEli Cohen wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB); 186e126ba97SEli Cohen qp->rq.wqe_cnt = wq_size / wqe_size; 187c7a08ac7SEli Cohen if (wqe_size > gen->max_rq_desc_sz) { 188e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d, max %d\n", 189e126ba97SEli Cohen wqe_size, 190c7a08ac7SEli Cohen gen->max_rq_desc_sz); 191e126ba97SEli Cohen return -EINVAL; 192e126ba97SEli Cohen } 193e126ba97SEli Cohen qp->rq.wqe_shift = ilog2(wqe_size); 194e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 195e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 196e126ba97SEli Cohen } 197e126ba97SEli Cohen } 198e126ba97SEli Cohen 199e126ba97SEli Cohen return 0; 200e126ba97SEli Cohen } 201e126ba97SEli Cohen 202e126ba97SEli Cohen static int sq_overhead(enum ib_qp_type qp_type) 203e126ba97SEli Cohen { 204618af384SAndi Shyti int size = 0; 205e126ba97SEli Cohen 206e126ba97SEli Cohen switch (qp_type) { 207e126ba97SEli Cohen case IB_QPT_XRC_INI: 208b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_xrc_seg); 209e126ba97SEli Cohen /* fall through */ 210e126ba97SEli Cohen case IB_QPT_RC: 211e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 212e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg) + 213e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 214e126ba97SEli Cohen break; 215e126ba97SEli Cohen 216b125a54bSEli Cohen case IB_QPT_XRC_TGT: 217b125a54bSEli Cohen return 0; 218b125a54bSEli Cohen 219e126ba97SEli Cohen case IB_QPT_UC: 220b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 2219e65dc37SEli Cohen sizeof(struct mlx5_wqe_raddr_seg) + 2229e65dc37SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 2239e65dc37SEli Cohen sizeof(struct mlx5_mkey_seg); 224e126ba97SEli Cohen break; 225e126ba97SEli Cohen 226e126ba97SEli Cohen case IB_QPT_UD: 227e126ba97SEli Cohen case IB_QPT_SMI: 228e126ba97SEli Cohen case IB_QPT_GSI: 229b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 230e126ba97SEli Cohen sizeof(struct mlx5_wqe_datagram_seg); 231e126ba97SEli Cohen break; 232e126ba97SEli Cohen 233e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 234b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 235e126ba97SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 236e126ba97SEli Cohen sizeof(struct mlx5_mkey_seg); 237e126ba97SEli Cohen break; 238e126ba97SEli Cohen 239e126ba97SEli Cohen default: 240e126ba97SEli Cohen return -EINVAL; 241e126ba97SEli Cohen } 242e126ba97SEli Cohen 243e126ba97SEli Cohen return size; 244e126ba97SEli Cohen } 245e126ba97SEli Cohen 246e126ba97SEli Cohen static int calc_send_wqe(struct ib_qp_init_attr *attr) 247e126ba97SEli Cohen { 248e126ba97SEli Cohen int inl_size = 0; 249e126ba97SEli Cohen int size; 250e126ba97SEli Cohen 251e126ba97SEli Cohen size = sq_overhead(attr->qp_type); 252e126ba97SEli Cohen if (size < 0) 253e126ba97SEli Cohen return size; 254e126ba97SEli Cohen 255e126ba97SEli Cohen if (attr->cap.max_inline_data) { 256e126ba97SEli Cohen inl_size = size + sizeof(struct mlx5_wqe_inline_seg) + 257e126ba97SEli Cohen attr->cap.max_inline_data; 258e126ba97SEli Cohen } 259e126ba97SEli Cohen 260e126ba97SEli Cohen size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg); 261e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN && 262e1e66cc2SSagi Grimberg ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE) 263e1e66cc2SSagi Grimberg return MLX5_SIG_WQE_SIZE; 264e1e66cc2SSagi Grimberg else 265e126ba97SEli Cohen return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB); 266e126ba97SEli Cohen } 267e126ba97SEli Cohen 268e126ba97SEli Cohen static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 269e126ba97SEli Cohen struct mlx5_ib_qp *qp) 270e126ba97SEli Cohen { 271c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 272e126ba97SEli Cohen int wqe_size; 273e126ba97SEli Cohen int wq_size; 274e126ba97SEli Cohen 275c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 276e126ba97SEli Cohen if (!attr->cap.max_send_wr) 277e126ba97SEli Cohen return 0; 278e126ba97SEli Cohen 279e126ba97SEli Cohen wqe_size = calc_send_wqe(attr); 280e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size); 281e126ba97SEli Cohen if (wqe_size < 0) 282e126ba97SEli Cohen return wqe_size; 283e126ba97SEli Cohen 284c7a08ac7SEli Cohen if (wqe_size > gen->max_sq_desc_sz) { 285b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", 286c7a08ac7SEli Cohen wqe_size, gen->max_sq_desc_sz); 287e126ba97SEli Cohen return -EINVAL; 288e126ba97SEli Cohen } 289e126ba97SEli Cohen 290e126ba97SEli Cohen qp->max_inline_data = wqe_size - sq_overhead(attr->qp_type) - 291e126ba97SEli Cohen sizeof(struct mlx5_wqe_inline_seg); 292e126ba97SEli Cohen attr->cap.max_inline_data = qp->max_inline_data; 293e126ba97SEli Cohen 294e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) 295e1e66cc2SSagi Grimberg qp->signature_en = true; 296e1e66cc2SSagi Grimberg 297e126ba97SEli Cohen wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); 298e126ba97SEli Cohen qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; 299c7a08ac7SEli Cohen if (qp->sq.wqe_cnt > gen->max_wqes) { 300b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", 301c7a08ac7SEli Cohen qp->sq.wqe_cnt, gen->max_wqes); 302b125a54bSEli Cohen return -ENOMEM; 303b125a54bSEli Cohen } 304e126ba97SEli Cohen qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 305e126ba97SEli Cohen qp->sq.max_gs = attr->cap.max_send_sge; 306b125a54bSEli Cohen qp->sq.max_post = wq_size / wqe_size; 307b125a54bSEli Cohen attr->cap.max_send_wr = qp->sq.max_post; 308e126ba97SEli Cohen 309e126ba97SEli Cohen return wq_size; 310e126ba97SEli Cohen } 311e126ba97SEli Cohen 312e126ba97SEli Cohen static int set_user_buf_size(struct mlx5_ib_dev *dev, 313e126ba97SEli Cohen struct mlx5_ib_qp *qp, 314e126ba97SEli Cohen struct mlx5_ib_create_qp *ucmd) 315e126ba97SEli Cohen { 316c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 317e126ba97SEli Cohen int desc_sz = 1 << qp->sq.wqe_shift; 318e126ba97SEli Cohen 319c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 320c7a08ac7SEli Cohen if (desc_sz > gen->max_sq_desc_sz) { 321e126ba97SEli Cohen mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n", 322c7a08ac7SEli Cohen desc_sz, gen->max_sq_desc_sz); 323e126ba97SEli Cohen return -EINVAL; 324e126ba97SEli Cohen } 325e126ba97SEli Cohen 326e126ba97SEli Cohen if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) { 327e126ba97SEli Cohen mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n", 328e126ba97SEli Cohen ucmd->sq_wqe_count, ucmd->sq_wqe_count); 329e126ba97SEli Cohen return -EINVAL; 330e126ba97SEli Cohen } 331e126ba97SEli Cohen 332e126ba97SEli Cohen qp->sq.wqe_cnt = ucmd->sq_wqe_count; 333e126ba97SEli Cohen 334c7a08ac7SEli Cohen if (qp->sq.wqe_cnt > gen->max_wqes) { 335e126ba97SEli Cohen mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n", 336c7a08ac7SEli Cohen qp->sq.wqe_cnt, gen->max_wqes); 337e126ba97SEli Cohen return -EINVAL; 338e126ba97SEli Cohen } 339e126ba97SEli Cohen 340e126ba97SEli Cohen qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) + 341e126ba97SEli Cohen (qp->sq.wqe_cnt << 6); 342e126ba97SEli Cohen 343e126ba97SEli Cohen return 0; 344e126ba97SEli Cohen } 345e126ba97SEli Cohen 346e126ba97SEli Cohen static int qp_has_rq(struct ib_qp_init_attr *attr) 347e126ba97SEli Cohen { 348e126ba97SEli Cohen if (attr->qp_type == IB_QPT_XRC_INI || 349e126ba97SEli Cohen attr->qp_type == IB_QPT_XRC_TGT || attr->srq || 350e126ba97SEli Cohen attr->qp_type == MLX5_IB_QPT_REG_UMR || 351e126ba97SEli Cohen !attr->cap.max_recv_wr) 352e126ba97SEli Cohen return 0; 353e126ba97SEli Cohen 354e126ba97SEli Cohen return 1; 355e126ba97SEli Cohen } 356e126ba97SEli Cohen 357c1be5232SEli Cohen static int first_med_uuar(void) 358c1be5232SEli Cohen { 359c1be5232SEli Cohen return 1; 360c1be5232SEli Cohen } 361c1be5232SEli Cohen 362c1be5232SEli Cohen static int next_uuar(int n) 363c1be5232SEli Cohen { 364c1be5232SEli Cohen n++; 365c1be5232SEli Cohen 366c1be5232SEli Cohen while (((n % 4) & 2)) 367c1be5232SEli Cohen n++; 368c1be5232SEli Cohen 369c1be5232SEli Cohen return n; 370c1be5232SEli Cohen } 371c1be5232SEli Cohen 372c1be5232SEli Cohen static int num_med_uuar(struct mlx5_uuar_info *uuari) 373c1be5232SEli Cohen { 374c1be5232SEli Cohen int n; 375c1be5232SEli Cohen 376c1be5232SEli Cohen n = uuari->num_uars * MLX5_NON_FP_BF_REGS_PER_PAGE - 377c1be5232SEli Cohen uuari->num_low_latency_uuars - 1; 378c1be5232SEli Cohen 379c1be5232SEli Cohen return n >= 0 ? n : 0; 380c1be5232SEli Cohen } 381c1be5232SEli Cohen 382c1be5232SEli Cohen static int max_uuari(struct mlx5_uuar_info *uuari) 383c1be5232SEli Cohen { 384c1be5232SEli Cohen return uuari->num_uars * 4; 385c1be5232SEli Cohen } 386c1be5232SEli Cohen 387c1be5232SEli Cohen static int first_hi_uuar(struct mlx5_uuar_info *uuari) 388c1be5232SEli Cohen { 389c1be5232SEli Cohen int med; 390c1be5232SEli Cohen int i; 391c1be5232SEli Cohen int t; 392c1be5232SEli Cohen 393c1be5232SEli Cohen med = num_med_uuar(uuari); 394c1be5232SEli Cohen for (t = 0, i = first_med_uuar();; i = next_uuar(i)) { 395c1be5232SEli Cohen t++; 396c1be5232SEli Cohen if (t == med) 397c1be5232SEli Cohen return next_uuar(i); 398c1be5232SEli Cohen } 399c1be5232SEli Cohen 400c1be5232SEli Cohen return 0; 401c1be5232SEli Cohen } 402c1be5232SEli Cohen 403e126ba97SEli Cohen static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari) 404e126ba97SEli Cohen { 405e126ba97SEli Cohen int i; 406e126ba97SEli Cohen 407c1be5232SEli Cohen for (i = first_hi_uuar(uuari); i < max_uuari(uuari); i = next_uuar(i)) { 408e126ba97SEli Cohen if (!test_bit(i, uuari->bitmap)) { 409e126ba97SEli Cohen set_bit(i, uuari->bitmap); 410e126ba97SEli Cohen uuari->count[i]++; 411e126ba97SEli Cohen return i; 412e126ba97SEli Cohen } 413e126ba97SEli Cohen } 414e126ba97SEli Cohen 415e126ba97SEli Cohen return -ENOMEM; 416e126ba97SEli Cohen } 417e126ba97SEli Cohen 418e126ba97SEli Cohen static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari) 419e126ba97SEli Cohen { 420c1be5232SEli Cohen int minidx = first_med_uuar(); 421e126ba97SEli Cohen int i; 422e126ba97SEli Cohen 423c1be5232SEli Cohen for (i = first_med_uuar(); i < first_hi_uuar(uuari); i = next_uuar(i)) { 424e126ba97SEli Cohen if (uuari->count[i] < uuari->count[minidx]) 425e126ba97SEli Cohen minidx = i; 426e126ba97SEli Cohen } 427e126ba97SEli Cohen 428e126ba97SEli Cohen uuari->count[minidx]++; 429e126ba97SEli Cohen return minidx; 430e126ba97SEli Cohen } 431e126ba97SEli Cohen 432e126ba97SEli Cohen static int alloc_uuar(struct mlx5_uuar_info *uuari, 433e126ba97SEli Cohen enum mlx5_ib_latency_class lat) 434e126ba97SEli Cohen { 435e126ba97SEli Cohen int uuarn = -EINVAL; 436e126ba97SEli Cohen 437e126ba97SEli Cohen mutex_lock(&uuari->lock); 438e126ba97SEli Cohen switch (lat) { 439e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_LOW: 440e126ba97SEli Cohen uuarn = 0; 441e126ba97SEli Cohen uuari->count[uuarn]++; 442e126ba97SEli Cohen break; 443e126ba97SEli Cohen 444e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_MEDIUM: 44578c0f98cSEli Cohen if (uuari->ver < 2) 44678c0f98cSEli Cohen uuarn = -ENOMEM; 44778c0f98cSEli Cohen else 448e126ba97SEli Cohen uuarn = alloc_med_class_uuar(uuari); 449e126ba97SEli Cohen break; 450e126ba97SEli Cohen 451e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_HIGH: 45278c0f98cSEli Cohen if (uuari->ver < 2) 45378c0f98cSEli Cohen uuarn = -ENOMEM; 45478c0f98cSEli Cohen else 455e126ba97SEli Cohen uuarn = alloc_high_class_uuar(uuari); 456e126ba97SEli Cohen break; 457e126ba97SEli Cohen 458e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_FAST_PATH: 459e126ba97SEli Cohen uuarn = 2; 460e126ba97SEli Cohen break; 461e126ba97SEli Cohen } 462e126ba97SEli Cohen mutex_unlock(&uuari->lock); 463e126ba97SEli Cohen 464e126ba97SEli Cohen return uuarn; 465e126ba97SEli Cohen } 466e126ba97SEli Cohen 467e126ba97SEli Cohen static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 468e126ba97SEli Cohen { 469e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 470e126ba97SEli Cohen --uuari->count[uuarn]; 471e126ba97SEli Cohen } 472e126ba97SEli Cohen 473e126ba97SEli Cohen static void free_high_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 474e126ba97SEli Cohen { 475e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 476e126ba97SEli Cohen --uuari->count[uuarn]; 477e126ba97SEli Cohen } 478e126ba97SEli Cohen 479e126ba97SEli Cohen static void free_uuar(struct mlx5_uuar_info *uuari, int uuarn) 480e126ba97SEli Cohen { 481e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 482e126ba97SEli Cohen int high_uuar = nuuars - uuari->num_low_latency_uuars; 483e126ba97SEli Cohen 484e126ba97SEli Cohen mutex_lock(&uuari->lock); 485e126ba97SEli Cohen if (uuarn == 0) { 486e126ba97SEli Cohen --uuari->count[uuarn]; 487e126ba97SEli Cohen goto out; 488e126ba97SEli Cohen } 489e126ba97SEli Cohen 490e126ba97SEli Cohen if (uuarn < high_uuar) { 491e126ba97SEli Cohen free_med_class_uuar(uuari, uuarn); 492e126ba97SEli Cohen goto out; 493e126ba97SEli Cohen } 494e126ba97SEli Cohen 495e126ba97SEli Cohen free_high_class_uuar(uuari, uuarn); 496e126ba97SEli Cohen 497e126ba97SEli Cohen out: 498e126ba97SEli Cohen mutex_unlock(&uuari->lock); 499e126ba97SEli Cohen } 500e126ba97SEli Cohen 501e126ba97SEli Cohen static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state) 502e126ba97SEli Cohen { 503e126ba97SEli Cohen switch (state) { 504e126ba97SEli Cohen case IB_QPS_RESET: return MLX5_QP_STATE_RST; 505e126ba97SEli Cohen case IB_QPS_INIT: return MLX5_QP_STATE_INIT; 506e126ba97SEli Cohen case IB_QPS_RTR: return MLX5_QP_STATE_RTR; 507e126ba97SEli Cohen case IB_QPS_RTS: return MLX5_QP_STATE_RTS; 508e126ba97SEli Cohen case IB_QPS_SQD: return MLX5_QP_STATE_SQD; 509e126ba97SEli Cohen case IB_QPS_SQE: return MLX5_QP_STATE_SQER; 510e126ba97SEli Cohen case IB_QPS_ERR: return MLX5_QP_STATE_ERR; 511e126ba97SEli Cohen default: return -1; 512e126ba97SEli Cohen } 513e126ba97SEli Cohen } 514e126ba97SEli Cohen 515e126ba97SEli Cohen static int to_mlx5_st(enum ib_qp_type type) 516e126ba97SEli Cohen { 517e126ba97SEli Cohen switch (type) { 518e126ba97SEli Cohen case IB_QPT_RC: return MLX5_QP_ST_RC; 519e126ba97SEli Cohen case IB_QPT_UC: return MLX5_QP_ST_UC; 520e126ba97SEli Cohen case IB_QPT_UD: return MLX5_QP_ST_UD; 521e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR; 522e126ba97SEli Cohen case IB_QPT_XRC_INI: 523e126ba97SEli Cohen case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC; 524e126ba97SEli Cohen case IB_QPT_SMI: return MLX5_QP_ST_QP0; 525e126ba97SEli Cohen case IB_QPT_GSI: return MLX5_QP_ST_QP1; 526e126ba97SEli Cohen case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6; 527e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE; 528e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 529e126ba97SEli Cohen case IB_QPT_MAX: 530e126ba97SEli Cohen default: return -EINVAL; 531e126ba97SEli Cohen } 532e126ba97SEli Cohen } 533e126ba97SEli Cohen 534e126ba97SEli Cohen static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn) 535e126ba97SEli Cohen { 536e126ba97SEli Cohen return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index; 537e126ba97SEli Cohen } 538e126ba97SEli Cohen 539e126ba97SEli Cohen static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, 540e126ba97SEli Cohen struct mlx5_ib_qp *qp, struct ib_udata *udata, 541e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, 542e126ba97SEli Cohen struct mlx5_ib_create_qp_resp *resp, int *inlen) 543e126ba97SEli Cohen { 544e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 545e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 5469e9c47d0SEli Cohen int page_shift = 0; 547e126ba97SEli Cohen int uar_index; 548e126ba97SEli Cohen int npages; 5499e9c47d0SEli Cohen u32 offset = 0; 550e126ba97SEli Cohen int uuarn; 5519e9c47d0SEli Cohen int ncont = 0; 552e126ba97SEli Cohen int err; 553e126ba97SEli Cohen 554e126ba97SEli Cohen err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 555e126ba97SEli Cohen if (err) { 556e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 557e126ba97SEli Cohen return err; 558e126ba97SEli Cohen } 559e126ba97SEli Cohen 560e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 561e126ba97SEli Cohen /* 562e126ba97SEli Cohen * TBD: should come from the verbs when we have the API 563e126ba97SEli Cohen */ 564e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH); 565e126ba97SEli Cohen if (uuarn < 0) { 566e126ba97SEli Cohen mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n"); 567c1be5232SEli Cohen mlx5_ib_dbg(dev, "reverting to medium latency\n"); 568c1be5232SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_MEDIUM); 569c1be5232SEli Cohen if (uuarn < 0) { 570c1be5232SEli Cohen mlx5_ib_dbg(dev, "failed to allocate medium latency UUAR\n"); 571e126ba97SEli Cohen mlx5_ib_dbg(dev, "reverting to high latency\n"); 572e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW); 573e126ba97SEli Cohen if (uuarn < 0) { 574c1be5232SEli Cohen mlx5_ib_warn(dev, "uuar allocation failed\n"); 575e126ba97SEli Cohen return uuarn; 576e126ba97SEli Cohen } 577e126ba97SEli Cohen } 578c1be5232SEli Cohen } 579e126ba97SEli Cohen 580e126ba97SEli Cohen uar_index = uuarn_to_uar_index(&context->uuari, uuarn); 581e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index); 582e126ba97SEli Cohen 58348fea837SHaggai Eran qp->rq.offset = 0; 58448fea837SHaggai Eran qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 58548fea837SHaggai Eran qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 58648fea837SHaggai Eran 587e126ba97SEli Cohen err = set_user_buf_size(dev, qp, &ucmd); 588e126ba97SEli Cohen if (err) 589e126ba97SEli Cohen goto err_uuar; 590e126ba97SEli Cohen 5919e9c47d0SEli Cohen if (ucmd.buf_addr && qp->buf_size) { 592e126ba97SEli Cohen qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, 593e126ba97SEli Cohen qp->buf_size, 0, 0); 594e126ba97SEli Cohen if (IS_ERR(qp->umem)) { 595e126ba97SEli Cohen mlx5_ib_dbg(dev, "umem_get failed\n"); 596e126ba97SEli Cohen err = PTR_ERR(qp->umem); 597e126ba97SEli Cohen goto err_uuar; 598e126ba97SEli Cohen } 5999e9c47d0SEli Cohen } else { 6009e9c47d0SEli Cohen qp->umem = NULL; 6019e9c47d0SEli Cohen } 602e126ba97SEli Cohen 6039e9c47d0SEli Cohen if (qp->umem) { 604e126ba97SEli Cohen mlx5_ib_cont_pages(qp->umem, ucmd.buf_addr, &npages, &page_shift, 605e126ba97SEli Cohen &ncont, NULL); 606e126ba97SEli Cohen err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift, &offset); 607e126ba97SEli Cohen if (err) { 608e126ba97SEli Cohen mlx5_ib_warn(dev, "bad offset\n"); 609e126ba97SEli Cohen goto err_umem; 610e126ba97SEli Cohen } 611e126ba97SEli Cohen mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n", 612e126ba97SEli Cohen ucmd.buf_addr, qp->buf_size, npages, page_shift, ncont, offset); 6139e9c47d0SEli Cohen } 614e126ba97SEli Cohen 615e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont; 616e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 617e126ba97SEli Cohen if (!*in) { 618e126ba97SEli Cohen err = -ENOMEM; 619e126ba97SEli Cohen goto err_umem; 620e126ba97SEli Cohen } 6219e9c47d0SEli Cohen if (qp->umem) 622e126ba97SEli Cohen mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); 623e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 6241b77d2bdSEli Cohen cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 625e126ba97SEli Cohen (*in)->ctx.params2 = cpu_to_be32(offset << 6); 626e126ba97SEli Cohen 627e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 628e126ba97SEli Cohen resp->uuar_index = uuarn; 629e126ba97SEli Cohen qp->uuarn = uuarn; 630e126ba97SEli Cohen 631e126ba97SEli Cohen err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db); 632e126ba97SEli Cohen if (err) { 633e126ba97SEli Cohen mlx5_ib_dbg(dev, "map failed\n"); 634e126ba97SEli Cohen goto err_free; 635e126ba97SEli Cohen } 636e126ba97SEli Cohen 637e126ba97SEli Cohen err = ib_copy_to_udata(udata, resp, sizeof(*resp)); 638e126ba97SEli Cohen if (err) { 639e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 640e126ba97SEli Cohen goto err_unmap; 641e126ba97SEli Cohen } 642e126ba97SEli Cohen qp->create_type = MLX5_QP_USER; 643e126ba97SEli Cohen 644e126ba97SEli Cohen return 0; 645e126ba97SEli Cohen 646e126ba97SEli Cohen err_unmap: 647e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 648e126ba97SEli Cohen 649e126ba97SEli Cohen err_free: 650479163f4SAl Viro kvfree(*in); 651e126ba97SEli Cohen 652e126ba97SEli Cohen err_umem: 6539e9c47d0SEli Cohen if (qp->umem) 654e126ba97SEli Cohen ib_umem_release(qp->umem); 655e126ba97SEli Cohen 656e126ba97SEli Cohen err_uuar: 657e126ba97SEli Cohen free_uuar(&context->uuari, uuarn); 658e126ba97SEli Cohen return err; 659e126ba97SEli Cohen } 660e126ba97SEli Cohen 661e126ba97SEli Cohen static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp) 662e126ba97SEli Cohen { 663e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 664e126ba97SEli Cohen 665e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 666e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 6679e9c47d0SEli Cohen if (qp->umem) 668e126ba97SEli Cohen ib_umem_release(qp->umem); 669e126ba97SEli Cohen free_uuar(&context->uuari, qp->uuarn); 670e126ba97SEli Cohen } 671e126ba97SEli Cohen 672e126ba97SEli Cohen static int create_kernel_qp(struct mlx5_ib_dev *dev, 673e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 674e126ba97SEli Cohen struct mlx5_ib_qp *qp, 675e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, int *inlen) 676e126ba97SEli Cohen { 677e126ba97SEli Cohen enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW; 678e126ba97SEli Cohen struct mlx5_uuar_info *uuari; 679e126ba97SEli Cohen int uar_index; 680e126ba97SEli Cohen int uuarn; 681e126ba97SEli Cohen int err; 682e126ba97SEli Cohen 6839603b61dSJack Morgenstein uuari = &dev->mdev->priv.uuari; 684652c1a05SOr Gerlitz if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)) 6851a4c3a3dSEli Cohen return -EINVAL; 686e126ba97SEli Cohen 687e126ba97SEli Cohen if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR) 688e126ba97SEli Cohen lc = MLX5_IB_LATENCY_CLASS_FAST_PATH; 689e126ba97SEli Cohen 690e126ba97SEli Cohen uuarn = alloc_uuar(uuari, lc); 691e126ba97SEli Cohen if (uuarn < 0) { 692e126ba97SEli Cohen mlx5_ib_dbg(dev, "\n"); 693e126ba97SEli Cohen return -ENOMEM; 694e126ba97SEli Cohen } 695e126ba97SEli Cohen 696e126ba97SEli Cohen qp->bf = &uuari->bfs[uuarn]; 697e126ba97SEli Cohen uar_index = qp->bf->uar->index; 698e126ba97SEli Cohen 699e126ba97SEli Cohen err = calc_sq_size(dev, init_attr, qp); 700e126ba97SEli Cohen if (err < 0) { 701e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 702e126ba97SEli Cohen goto err_uuar; 703e126ba97SEli Cohen } 704e126ba97SEli Cohen 705e126ba97SEli Cohen qp->rq.offset = 0; 706e126ba97SEli Cohen qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 707e126ba97SEli Cohen qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); 708e126ba97SEli Cohen 7099603b61dSJack Morgenstein err = mlx5_buf_alloc(dev->mdev, qp->buf_size, PAGE_SIZE * 2, &qp->buf); 710e126ba97SEli Cohen if (err) { 711e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 712e126ba97SEli Cohen goto err_uuar; 713e126ba97SEli Cohen } 714e126ba97SEli Cohen 715e126ba97SEli Cohen qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt); 716e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * qp->buf.npages; 717e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 718e126ba97SEli Cohen if (!*in) { 719e126ba97SEli Cohen err = -ENOMEM; 720e126ba97SEli Cohen goto err_buf; 721e126ba97SEli Cohen } 722e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 7231b77d2bdSEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 7241b77d2bdSEli Cohen cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 725e126ba97SEli Cohen /* Set "fast registration enabled" for all kernel QPs */ 726e126ba97SEli Cohen (*in)->ctx.params1 |= cpu_to_be32(1 << 11); 727e126ba97SEli Cohen (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); 728e126ba97SEli Cohen 729e126ba97SEli Cohen mlx5_fill_page_array(&qp->buf, (*in)->pas); 730e126ba97SEli Cohen 7319603b61dSJack Morgenstein err = mlx5_db_alloc(dev->mdev, &qp->db); 732e126ba97SEli Cohen if (err) { 733e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 734e126ba97SEli Cohen goto err_free; 735e126ba97SEli Cohen } 736e126ba97SEli Cohen 737e126ba97SEli Cohen qp->db.db[0] = 0; 738e126ba97SEli Cohen qp->db.db[1] = 0; 739e126ba97SEli Cohen 740e126ba97SEli Cohen qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL); 741e126ba97SEli Cohen qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL); 742e126ba97SEli Cohen qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL); 743e126ba97SEli Cohen qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL); 744e126ba97SEli Cohen qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL); 745e126ba97SEli Cohen 746e126ba97SEli Cohen if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid || 747e126ba97SEli Cohen !qp->sq.w_list || !qp->sq.wqe_head) { 748e126ba97SEli Cohen err = -ENOMEM; 749e126ba97SEli Cohen goto err_wrid; 750e126ba97SEli Cohen } 751e126ba97SEli Cohen qp->create_type = MLX5_QP_KERNEL; 752e126ba97SEli Cohen 753e126ba97SEli Cohen return 0; 754e126ba97SEli Cohen 755e126ba97SEli Cohen err_wrid: 7569603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 757e126ba97SEli Cohen kfree(qp->sq.wqe_head); 758e126ba97SEli Cohen kfree(qp->sq.w_list); 759e126ba97SEli Cohen kfree(qp->sq.wrid); 760e126ba97SEli Cohen kfree(qp->sq.wr_data); 761e126ba97SEli Cohen kfree(qp->rq.wrid); 762e126ba97SEli Cohen 763e126ba97SEli Cohen err_free: 764479163f4SAl Viro kvfree(*in); 765e126ba97SEli Cohen 766e126ba97SEli Cohen err_buf: 7679603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 768e126ba97SEli Cohen 769e126ba97SEli Cohen err_uuar: 7709603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, uuarn); 771e126ba97SEli Cohen return err; 772e126ba97SEli Cohen } 773e126ba97SEli Cohen 774e126ba97SEli Cohen static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 775e126ba97SEli Cohen { 7769603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 777e126ba97SEli Cohen kfree(qp->sq.wqe_head); 778e126ba97SEli Cohen kfree(qp->sq.w_list); 779e126ba97SEli Cohen kfree(qp->sq.wrid); 780e126ba97SEli Cohen kfree(qp->sq.wr_data); 781e126ba97SEli Cohen kfree(qp->rq.wrid); 7829603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 7839603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, qp->bf->uuarn); 784e126ba97SEli Cohen } 785e126ba97SEli Cohen 786e126ba97SEli Cohen static __be32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr) 787e126ba97SEli Cohen { 788e126ba97SEli Cohen if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) || 789e126ba97SEli Cohen (attr->qp_type == IB_QPT_XRC_INI)) 790e126ba97SEli Cohen return cpu_to_be32(MLX5_SRQ_RQ); 791e126ba97SEli Cohen else if (!qp->has_rq) 792e126ba97SEli Cohen return cpu_to_be32(MLX5_ZERO_LEN_RQ); 793e126ba97SEli Cohen else 794e126ba97SEli Cohen return cpu_to_be32(MLX5_NON_ZERO_RQ); 795e126ba97SEli Cohen } 796e126ba97SEli Cohen 797e126ba97SEli Cohen static int is_connected(enum ib_qp_type qp_type) 798e126ba97SEli Cohen { 799e126ba97SEli Cohen if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC) 800e126ba97SEli Cohen return 1; 801e126ba97SEli Cohen 802e126ba97SEli Cohen return 0; 803e126ba97SEli Cohen } 804e126ba97SEli Cohen 805e126ba97SEli Cohen static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, 806e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 807e126ba97SEli Cohen struct ib_udata *udata, struct mlx5_ib_qp *qp) 808e126ba97SEli Cohen { 809e126ba97SEli Cohen struct mlx5_ib_resources *devr = &dev->devr; 810e126ba97SEli Cohen struct mlx5_ib_create_qp_resp resp; 811e126ba97SEli Cohen struct mlx5_create_qp_mbox_in *in; 812c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 813e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 814e126ba97SEli Cohen int inlen = sizeof(*in); 815e126ba97SEli Cohen int err; 816e126ba97SEli Cohen 817c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 818e126ba97SEli Cohen mutex_init(&qp->mutex); 819e126ba97SEli Cohen spin_lock_init(&qp->sq.lock); 820e126ba97SEli Cohen spin_lock_init(&qp->rq.lock); 821e126ba97SEli Cohen 822f360d88aSEli Cohen if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) { 823c7a08ac7SEli Cohen if (!(gen->flags & MLX5_DEV_CAP_FLAG_BLOCK_MCAST)) { 824f360d88aSEli Cohen mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n"); 825f360d88aSEli Cohen return -EINVAL; 826f360d88aSEli Cohen } else { 827f360d88aSEli Cohen qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK; 828f360d88aSEli Cohen } 829f360d88aSEli Cohen } 830f360d88aSEli Cohen 831e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) 832e126ba97SEli Cohen qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE; 833e126ba97SEli Cohen 834e126ba97SEli Cohen if (pd && pd->uobject) { 835e126ba97SEli Cohen if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { 836e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 837e126ba97SEli Cohen return -EFAULT; 838e126ba97SEli Cohen } 839e126ba97SEli Cohen 840e126ba97SEli Cohen qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); 841e126ba97SEli Cohen qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); 842e126ba97SEli Cohen } else { 843e126ba97SEli Cohen qp->wq_sig = !!wq_signature; 844e126ba97SEli Cohen } 845e126ba97SEli Cohen 846e126ba97SEli Cohen qp->has_rq = qp_has_rq(init_attr); 847e126ba97SEli Cohen err = set_rq_size(dev, &init_attr->cap, qp->has_rq, 848e126ba97SEli Cohen qp, (pd && pd->uobject) ? &ucmd : NULL); 849e126ba97SEli Cohen if (err) { 850e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 851e126ba97SEli Cohen return err; 852e126ba97SEli Cohen } 853e126ba97SEli Cohen 854e126ba97SEli Cohen if (pd) { 855e126ba97SEli Cohen if (pd->uobject) { 856e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count); 857e126ba97SEli Cohen if (ucmd.rq_wqe_shift != qp->rq.wqe_shift || 858e126ba97SEli Cohen ucmd.rq_wqe_count != qp->rq.wqe_cnt) { 859e126ba97SEli Cohen mlx5_ib_dbg(dev, "invalid rq params\n"); 860e126ba97SEli Cohen return -EINVAL; 861e126ba97SEli Cohen } 862c7a08ac7SEli Cohen if (ucmd.sq_wqe_count > gen->max_wqes) { 863e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n", 864c7a08ac7SEli Cohen ucmd.sq_wqe_count, gen->max_wqes); 865e126ba97SEli Cohen return -EINVAL; 866e126ba97SEli Cohen } 867e126ba97SEli Cohen err = create_user_qp(dev, pd, qp, udata, &in, &resp, &inlen); 868e126ba97SEli Cohen if (err) 869e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 870e126ba97SEli Cohen } else { 871e126ba97SEli Cohen err = create_kernel_qp(dev, init_attr, qp, &in, &inlen); 872e126ba97SEli Cohen if (err) 873e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 874e126ba97SEli Cohen else 875e126ba97SEli Cohen qp->pa_lkey = to_mpd(pd)->pa_lkey; 876e126ba97SEli Cohen } 877e126ba97SEli Cohen 878e126ba97SEli Cohen if (err) 879e126ba97SEli Cohen return err; 880e126ba97SEli Cohen } else { 881e126ba97SEli Cohen in = mlx5_vzalloc(sizeof(*in)); 882e126ba97SEli Cohen if (!in) 883e126ba97SEli Cohen return -ENOMEM; 884e126ba97SEli Cohen 885e126ba97SEli Cohen qp->create_type = MLX5_QP_EMPTY; 886e126ba97SEli Cohen } 887e126ba97SEli Cohen 888e126ba97SEli Cohen if (is_sqp(init_attr->qp_type)) 889e126ba97SEli Cohen qp->port = init_attr->port_num; 890e126ba97SEli Cohen 891e126ba97SEli Cohen in->ctx.flags = cpu_to_be32(to_mlx5_st(init_attr->qp_type) << 16 | 892e126ba97SEli Cohen MLX5_QP_PM_MIGRATED << 11); 893e126ba97SEli Cohen 894e126ba97SEli Cohen if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR) 895e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(to_mpd(pd ? pd : devr->p0)->pdn); 896e126ba97SEli Cohen else 897e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(MLX5_QP_LAT_SENSITIVE); 898e126ba97SEli Cohen 899e126ba97SEli Cohen if (qp->wq_sig) 900e126ba97SEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_ENABLE_SIG); 901e126ba97SEli Cohen 902f360d88aSEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 903f360d88aSEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_BLOCK_MCAST); 904f360d88aSEli Cohen 905e126ba97SEli Cohen if (qp->scat_cqe && is_connected(init_attr->qp_type)) { 906e126ba97SEli Cohen int rcqe_sz; 907e126ba97SEli Cohen int scqe_sz; 908e126ba97SEli Cohen 909e126ba97SEli Cohen rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq); 910e126ba97SEli Cohen scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq); 911e126ba97SEli Cohen 912e126ba97SEli Cohen if (rcqe_sz == 128) 913e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA64_CQE; 914e126ba97SEli Cohen else 915e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA32_CQE; 916e126ba97SEli Cohen 917e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) { 918e126ba97SEli Cohen if (scqe_sz == 128) 919e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA64_CQE; 920e126ba97SEli Cohen else 921e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA32_CQE; 922e126ba97SEli Cohen } 923e126ba97SEli Cohen } 924e126ba97SEli Cohen 925e126ba97SEli Cohen if (qp->rq.wqe_cnt) { 926e126ba97SEli Cohen in->ctx.rq_size_stride = (qp->rq.wqe_shift - 4); 927e126ba97SEli Cohen in->ctx.rq_size_stride |= ilog2(qp->rq.wqe_cnt) << 3; 928e126ba97SEli Cohen } 929e126ba97SEli Cohen 930e126ba97SEli Cohen in->ctx.rq_type_srqn = get_rx_type(qp, init_attr); 931e126ba97SEli Cohen 932e126ba97SEli Cohen if (qp->sq.wqe_cnt) 933e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(ilog2(qp->sq.wqe_cnt) << 11); 934e126ba97SEli Cohen else 935e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(0x8000); 936e126ba97SEli Cohen 937e126ba97SEli Cohen /* Set default resources */ 938e126ba97SEli Cohen switch (init_attr->qp_type) { 939e126ba97SEli Cohen case IB_QPT_XRC_TGT: 940e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 941e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 942e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 943e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(init_attr->xrcd)->xrcdn); 944e126ba97SEli Cohen break; 945e126ba97SEli Cohen case IB_QPT_XRC_INI: 946e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 947e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 948e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 949e126ba97SEli Cohen break; 950e126ba97SEli Cohen default: 951e126ba97SEli Cohen if (init_attr->srq) { 952e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x0)->xrcdn); 953e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(init_attr->srq)->msrq.srqn); 954e126ba97SEli Cohen } else { 955e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 956e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 957e126ba97SEli Cohen } 958e126ba97SEli Cohen } 959e126ba97SEli Cohen 960e126ba97SEli Cohen if (init_attr->send_cq) 961e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(init_attr->send_cq)->mcq.cqn); 962e126ba97SEli Cohen 963e126ba97SEli Cohen if (init_attr->recv_cq) 964e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(init_attr->recv_cq)->mcq.cqn); 965e126ba97SEli Cohen 966e126ba97SEli Cohen in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); 967e126ba97SEli Cohen 9689603b61dSJack Morgenstein err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen); 969e126ba97SEli Cohen if (err) { 970e126ba97SEli Cohen mlx5_ib_dbg(dev, "create qp failed\n"); 971e126ba97SEli Cohen goto err_create; 972e126ba97SEli Cohen } 973e126ba97SEli Cohen 974479163f4SAl Viro kvfree(in); 975e126ba97SEli Cohen /* Hardware wants QPN written in big-endian order (after 976e126ba97SEli Cohen * shifting) for send doorbell. Precompute this value to save 977e126ba97SEli Cohen * a little bit when posting sends. 978e126ba97SEli Cohen */ 979e126ba97SEli Cohen qp->doorbell_qpn = swab32(qp->mqp.qpn << 8); 980e126ba97SEli Cohen 981e126ba97SEli Cohen qp->mqp.event = mlx5_ib_qp_event; 982e126ba97SEli Cohen 983e126ba97SEli Cohen return 0; 984e126ba97SEli Cohen 985e126ba97SEli Cohen err_create: 986e126ba97SEli Cohen if (qp->create_type == MLX5_QP_USER) 987e126ba97SEli Cohen destroy_qp_user(pd, qp); 988e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_KERNEL) 989e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 990e126ba97SEli Cohen 991479163f4SAl Viro kvfree(in); 992e126ba97SEli Cohen return err; 993e126ba97SEli Cohen } 994e126ba97SEli Cohen 995e126ba97SEli Cohen static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 996e126ba97SEli Cohen __acquires(&send_cq->lock) __acquires(&recv_cq->lock) 997e126ba97SEli Cohen { 998e126ba97SEli Cohen if (send_cq) { 999e126ba97SEli Cohen if (recv_cq) { 1000e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1001e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1002e126ba97SEli Cohen spin_lock_nested(&recv_cq->lock, 1003e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1004e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1005e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1006e126ba97SEli Cohen __acquire(&recv_cq->lock); 1007e126ba97SEli Cohen } else { 1008e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1009e126ba97SEli Cohen spin_lock_nested(&send_cq->lock, 1010e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1011e126ba97SEli Cohen } 1012e126ba97SEli Cohen } else { 1013e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1014e126ba97SEli Cohen } 1015e126ba97SEli Cohen } else if (recv_cq) { 1016e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1017e126ba97SEli Cohen } 1018e126ba97SEli Cohen } 1019e126ba97SEli Cohen 1020e126ba97SEli Cohen static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1021e126ba97SEli Cohen __releases(&send_cq->lock) __releases(&recv_cq->lock) 1022e126ba97SEli Cohen { 1023e126ba97SEli Cohen if (send_cq) { 1024e126ba97SEli Cohen if (recv_cq) { 1025e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1026e126ba97SEli Cohen spin_unlock(&recv_cq->lock); 1027e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1028e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1029e126ba97SEli Cohen __release(&recv_cq->lock); 1030e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1031e126ba97SEli Cohen } else { 1032e126ba97SEli Cohen spin_unlock(&send_cq->lock); 1033e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1034e126ba97SEli Cohen } 1035e126ba97SEli Cohen } else { 1036e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1037e126ba97SEli Cohen } 1038e126ba97SEli Cohen } else if (recv_cq) { 1039e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1040e126ba97SEli Cohen } 1041e126ba97SEli Cohen } 1042e126ba97SEli Cohen 1043e126ba97SEli Cohen static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp) 1044e126ba97SEli Cohen { 1045e126ba97SEli Cohen return to_mpd(qp->ibqp.pd); 1046e126ba97SEli Cohen } 1047e126ba97SEli Cohen 1048e126ba97SEli Cohen static void get_cqs(struct mlx5_ib_qp *qp, 1049e126ba97SEli Cohen struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq) 1050e126ba97SEli Cohen { 1051e126ba97SEli Cohen switch (qp->ibqp.qp_type) { 1052e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1053e126ba97SEli Cohen *send_cq = NULL; 1054e126ba97SEli Cohen *recv_cq = NULL; 1055e126ba97SEli Cohen break; 1056e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1057e126ba97SEli Cohen case IB_QPT_XRC_INI: 1058e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1059e126ba97SEli Cohen *recv_cq = NULL; 1060e126ba97SEli Cohen break; 1061e126ba97SEli Cohen 1062e126ba97SEli Cohen case IB_QPT_SMI: 1063e126ba97SEli Cohen case IB_QPT_GSI: 1064e126ba97SEli Cohen case IB_QPT_RC: 1065e126ba97SEli Cohen case IB_QPT_UC: 1066e126ba97SEli Cohen case IB_QPT_UD: 1067e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1068e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1069e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1070e126ba97SEli Cohen *recv_cq = to_mcq(qp->ibqp.recv_cq); 1071e126ba97SEli Cohen break; 1072e126ba97SEli Cohen 1073e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1074e126ba97SEli Cohen case IB_QPT_MAX: 1075e126ba97SEli Cohen default: 1076e126ba97SEli Cohen *send_cq = NULL; 1077e126ba97SEli Cohen *recv_cq = NULL; 1078e126ba97SEli Cohen break; 1079e126ba97SEli Cohen } 1080e126ba97SEli Cohen } 1081e126ba97SEli Cohen 1082e126ba97SEli Cohen static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 1083e126ba97SEli Cohen { 1084e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1085e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1086e126ba97SEli Cohen int err; 1087e126ba97SEli Cohen 1088e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1089e126ba97SEli Cohen if (!in) 1090e126ba97SEli Cohen return; 1091e126ba97SEli Cohen if (qp->state != IB_QPS_RESET) 10929603b61dSJack Morgenstein if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state), 1093e126ba97SEli Cohen MLX5_QP_STATE_RST, in, sizeof(*in), &qp->mqp)) 1094e126ba97SEli Cohen mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n", 1095e126ba97SEli Cohen qp->mqp.qpn); 1096e126ba97SEli Cohen 1097e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1098e126ba97SEli Cohen 1099e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) { 1100e126ba97SEli Cohen mlx5_ib_lock_cqs(send_cq, recv_cq); 1101e126ba97SEli Cohen __mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1102e126ba97SEli Cohen qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 1103e126ba97SEli Cohen if (send_cq != recv_cq) 1104e126ba97SEli Cohen __mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1105e126ba97SEli Cohen mlx5_ib_unlock_cqs(send_cq, recv_cq); 1106e126ba97SEli Cohen } 1107e126ba97SEli Cohen 11089603b61dSJack Morgenstein err = mlx5_core_destroy_qp(dev->mdev, &qp->mqp); 1109e126ba97SEli Cohen if (err) 1110e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", qp->mqp.qpn); 1111e126ba97SEli Cohen kfree(in); 1112e126ba97SEli Cohen 1113e126ba97SEli Cohen 1114e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) 1115e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1116e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_USER) 1117e126ba97SEli Cohen destroy_qp_user(&get_pd(qp)->ibpd, qp); 1118e126ba97SEli Cohen } 1119e126ba97SEli Cohen 1120e126ba97SEli Cohen static const char *ib_qp_type_str(enum ib_qp_type type) 1121e126ba97SEli Cohen { 1122e126ba97SEli Cohen switch (type) { 1123e126ba97SEli Cohen case IB_QPT_SMI: 1124e126ba97SEli Cohen return "IB_QPT_SMI"; 1125e126ba97SEli Cohen case IB_QPT_GSI: 1126e126ba97SEli Cohen return "IB_QPT_GSI"; 1127e126ba97SEli Cohen case IB_QPT_RC: 1128e126ba97SEli Cohen return "IB_QPT_RC"; 1129e126ba97SEli Cohen case IB_QPT_UC: 1130e126ba97SEli Cohen return "IB_QPT_UC"; 1131e126ba97SEli Cohen case IB_QPT_UD: 1132e126ba97SEli Cohen return "IB_QPT_UD"; 1133e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1134e126ba97SEli Cohen return "IB_QPT_RAW_IPV6"; 1135e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1136e126ba97SEli Cohen return "IB_QPT_RAW_ETHERTYPE"; 1137e126ba97SEli Cohen case IB_QPT_XRC_INI: 1138e126ba97SEli Cohen return "IB_QPT_XRC_INI"; 1139e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1140e126ba97SEli Cohen return "IB_QPT_XRC_TGT"; 1141e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1142e126ba97SEli Cohen return "IB_QPT_RAW_PACKET"; 1143e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1144e126ba97SEli Cohen return "MLX5_IB_QPT_REG_UMR"; 1145e126ba97SEli Cohen case IB_QPT_MAX: 1146e126ba97SEli Cohen default: 1147e126ba97SEli Cohen return "Invalid QP type"; 1148e126ba97SEli Cohen } 1149e126ba97SEli Cohen } 1150e126ba97SEli Cohen 1151e126ba97SEli Cohen struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1152e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1153e126ba97SEli Cohen struct ib_udata *udata) 1154e126ba97SEli Cohen { 1155c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 1156e126ba97SEli Cohen struct mlx5_ib_dev *dev; 1157e126ba97SEli Cohen struct mlx5_ib_qp *qp; 1158e126ba97SEli Cohen u16 xrcdn = 0; 1159e126ba97SEli Cohen int err; 1160e126ba97SEli Cohen 1161e126ba97SEli Cohen if (pd) { 1162e126ba97SEli Cohen dev = to_mdev(pd->device); 1163e126ba97SEli Cohen } else { 1164e126ba97SEli Cohen /* being cautious here */ 1165e126ba97SEli Cohen if (init_attr->qp_type != IB_QPT_XRC_TGT && 1166e126ba97SEli Cohen init_attr->qp_type != MLX5_IB_QPT_REG_UMR) { 1167e126ba97SEli Cohen pr_warn("%s: no PD for transport %s\n", __func__, 1168e126ba97SEli Cohen ib_qp_type_str(init_attr->qp_type)); 1169e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1170e126ba97SEli Cohen } 1171e126ba97SEli Cohen dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device); 1172e126ba97SEli Cohen } 1173c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 1174e126ba97SEli Cohen 1175e126ba97SEli Cohen switch (init_attr->qp_type) { 1176e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1177e126ba97SEli Cohen case IB_QPT_XRC_INI: 1178c7a08ac7SEli Cohen if (!(gen->flags & MLX5_DEV_CAP_FLAG_XRC)) { 1179e126ba97SEli Cohen mlx5_ib_dbg(dev, "XRC not supported\n"); 1180e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 1181e126ba97SEli Cohen } 1182e126ba97SEli Cohen init_attr->recv_cq = NULL; 1183e126ba97SEli Cohen if (init_attr->qp_type == IB_QPT_XRC_TGT) { 1184e126ba97SEli Cohen xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn; 1185e126ba97SEli Cohen init_attr->send_cq = NULL; 1186e126ba97SEli Cohen } 1187e126ba97SEli Cohen 1188e126ba97SEli Cohen /* fall through */ 1189e126ba97SEli Cohen case IB_QPT_RC: 1190e126ba97SEli Cohen case IB_QPT_UC: 1191e126ba97SEli Cohen case IB_QPT_UD: 1192e126ba97SEli Cohen case IB_QPT_SMI: 1193e126ba97SEli Cohen case IB_QPT_GSI: 1194e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1195e126ba97SEli Cohen qp = kzalloc(sizeof(*qp), GFP_KERNEL); 1196e126ba97SEli Cohen if (!qp) 1197e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 1198e126ba97SEli Cohen 1199e126ba97SEli Cohen err = create_qp_common(dev, pd, init_attr, udata, qp); 1200e126ba97SEli Cohen if (err) { 1201e126ba97SEli Cohen mlx5_ib_dbg(dev, "create_qp_common failed\n"); 1202e126ba97SEli Cohen kfree(qp); 1203e126ba97SEli Cohen return ERR_PTR(err); 1204e126ba97SEli Cohen } 1205e126ba97SEli Cohen 1206e126ba97SEli Cohen if (is_qp0(init_attr->qp_type)) 1207e126ba97SEli Cohen qp->ibqp.qp_num = 0; 1208e126ba97SEli Cohen else if (is_qp1(init_attr->qp_type)) 1209e126ba97SEli Cohen qp->ibqp.qp_num = 1; 1210e126ba97SEli Cohen else 1211e126ba97SEli Cohen qp->ibqp.qp_num = qp->mqp.qpn; 1212e126ba97SEli Cohen 1213e126ba97SEli Cohen mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", 1214e126ba97SEli Cohen qp->ibqp.qp_num, qp->mqp.qpn, to_mcq(init_attr->recv_cq)->mcq.cqn, 1215e126ba97SEli Cohen to_mcq(init_attr->send_cq)->mcq.cqn); 1216e126ba97SEli Cohen 1217e126ba97SEli Cohen qp->xrcdn = xrcdn; 1218e126ba97SEli Cohen 1219e126ba97SEli Cohen break; 1220e126ba97SEli Cohen 1221e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1222e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1223e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1224e126ba97SEli Cohen case IB_QPT_MAX: 1225e126ba97SEli Cohen default: 1226e126ba97SEli Cohen mlx5_ib_dbg(dev, "unsupported qp type %d\n", 1227e126ba97SEli Cohen init_attr->qp_type); 1228e126ba97SEli Cohen /* Don't support raw QPs */ 1229e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1230e126ba97SEli Cohen } 1231e126ba97SEli Cohen 1232e126ba97SEli Cohen return &qp->ibqp; 1233e126ba97SEli Cohen } 1234e126ba97SEli Cohen 1235e126ba97SEli Cohen int mlx5_ib_destroy_qp(struct ib_qp *qp) 1236e126ba97SEli Cohen { 1237e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(qp->device); 1238e126ba97SEli Cohen struct mlx5_ib_qp *mqp = to_mqp(qp); 1239e126ba97SEli Cohen 1240e126ba97SEli Cohen destroy_qp_common(dev, mqp); 1241e126ba97SEli Cohen 1242e126ba97SEli Cohen kfree(mqp); 1243e126ba97SEli Cohen 1244e126ba97SEli Cohen return 0; 1245e126ba97SEli Cohen } 1246e126ba97SEli Cohen 1247e126ba97SEli Cohen static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr, 1248e126ba97SEli Cohen int attr_mask) 1249e126ba97SEli Cohen { 1250e126ba97SEli Cohen u32 hw_access_flags = 0; 1251e126ba97SEli Cohen u8 dest_rd_atomic; 1252e126ba97SEli Cohen u32 access_flags; 1253e126ba97SEli Cohen 1254e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1255e126ba97SEli Cohen dest_rd_atomic = attr->max_dest_rd_atomic; 1256e126ba97SEli Cohen else 1257e126ba97SEli Cohen dest_rd_atomic = qp->resp_depth; 1258e126ba97SEli Cohen 1259e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1260e126ba97SEli Cohen access_flags = attr->qp_access_flags; 1261e126ba97SEli Cohen else 1262e126ba97SEli Cohen access_flags = qp->atomic_rd_en; 1263e126ba97SEli Cohen 1264e126ba97SEli Cohen if (!dest_rd_atomic) 1265e126ba97SEli Cohen access_flags &= IB_ACCESS_REMOTE_WRITE; 1266e126ba97SEli Cohen 1267e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_READ) 1268e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RRE; 1269e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_ATOMIC) 1270e126ba97SEli Cohen hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX); 1271e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_WRITE) 1272e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RWE; 1273e126ba97SEli Cohen 1274e126ba97SEli Cohen return cpu_to_be32(hw_access_flags); 1275e126ba97SEli Cohen } 1276e126ba97SEli Cohen 1277e126ba97SEli Cohen enum { 1278e126ba97SEli Cohen MLX5_PATH_FLAG_FL = 1 << 0, 1279e126ba97SEli Cohen MLX5_PATH_FLAG_FREE_AR = 1 << 1, 1280e126ba97SEli Cohen MLX5_PATH_FLAG_COUNTER = 1 << 2, 1281e126ba97SEli Cohen }; 1282e126ba97SEli Cohen 1283e126ba97SEli Cohen static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) 1284e126ba97SEli Cohen { 1285c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 1286c7a08ac7SEli Cohen 1287c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 1288e126ba97SEli Cohen if (rate == IB_RATE_PORT_CURRENT) { 1289e126ba97SEli Cohen return 0; 1290e126ba97SEli Cohen } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) { 1291e126ba97SEli Cohen return -EINVAL; 1292e126ba97SEli Cohen } else { 1293e126ba97SEli Cohen while (rate != IB_RATE_2_5_GBPS && 1294e126ba97SEli Cohen !(1 << (rate + MLX5_STAT_RATE_OFFSET) & 1295c7a08ac7SEli Cohen gen->stat_rate_support)) 1296e126ba97SEli Cohen --rate; 1297e126ba97SEli Cohen } 1298e126ba97SEli Cohen 1299e126ba97SEli Cohen return rate + MLX5_STAT_RATE_OFFSET; 1300e126ba97SEli Cohen } 1301e126ba97SEli Cohen 1302e126ba97SEli Cohen static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah, 1303e126ba97SEli Cohen struct mlx5_qp_path *path, u8 port, int attr_mask, 1304e126ba97SEli Cohen u32 path_flags, const struct ib_qp_attr *attr) 1305e126ba97SEli Cohen { 1306c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 1307e126ba97SEli Cohen int err; 1308e126ba97SEli Cohen 1309c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 1310e126ba97SEli Cohen path->fl = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0; 1311e126ba97SEli Cohen path->free_ar = (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x80 : 0; 1312e126ba97SEli Cohen 1313e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1314e126ba97SEli Cohen path->pkey_index = attr->pkey_index; 1315e126ba97SEli Cohen 1316e126ba97SEli Cohen path->grh_mlid = ah->src_path_bits & 0x7f; 1317e126ba97SEli Cohen path->rlid = cpu_to_be16(ah->dlid); 1318e126ba97SEli Cohen 1319e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 13202eb7f910SLinus Torvalds if (ah->grh.sgid_index >= gen->port[port - 1].gid_table_len) { 1321f83b4263SEli Cohen pr_err(KERN_ERR "sgid_index (%u) too large. max is %d\n", 13222eb7f910SLinus Torvalds ah->grh.sgid_index, gen->port[port - 1].gid_table_len); 1323f83b4263SEli Cohen return -EINVAL; 1324f83b4263SEli Cohen } 1325e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 1326e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1327e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1328e126ba97SEli Cohen path->tclass_flowlabel = 1329e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1330e126ba97SEli Cohen (ah->grh.flow_label)); 1331e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1332e126ba97SEli Cohen } 1333e126ba97SEli Cohen 1334e126ba97SEli Cohen err = ib_rate_to_mlx5(dev, ah->static_rate); 1335e126ba97SEli Cohen if (err < 0) 1336e126ba97SEli Cohen return err; 1337e126ba97SEli Cohen path->static_rate = err; 1338e126ba97SEli Cohen path->port = port; 1339e126ba97SEli Cohen 1340e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1341e126ba97SEli Cohen path->ackto_lt = attr->timeout << 3; 1342e126ba97SEli Cohen 1343e126ba97SEli Cohen path->sl = ah->sl & 0xf; 1344e126ba97SEli Cohen 1345e126ba97SEli Cohen return 0; 1346e126ba97SEli Cohen } 1347e126ba97SEli Cohen 1348e126ba97SEli Cohen static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = { 1349e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1350e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1351e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1352e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1353e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1354e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1355e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1356e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1357e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1358e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1359e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1360e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY | 1361e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1362e126ba97SEli Cohen }, 1363e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1364e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1365e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1366e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1367e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1368e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1369e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1370e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1371e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1372e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1373e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1374e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | 1375e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1376a4774e90SEli Cohen [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1377a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE | 1378a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1379a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1380a4774e90SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1381e126ba97SEli Cohen }, 1382e126ba97SEli Cohen }, 1383e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1384e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1385e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1386e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1387e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1388e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1389e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1390e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT, 1391e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1392e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1393e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1394e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1395e126ba97SEli Cohen }, 1396e126ba97SEli Cohen }, 1397e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1398e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1399e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1400e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1401e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1402e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT | 1403c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1404c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1405e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1406c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1407c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1408e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | 1409e126ba97SEli Cohen MLX5_QP_OPTPAR_SRQN | 1410e126ba97SEli Cohen MLX5_QP_OPTPAR_CQN_RCV, 1411e126ba97SEli Cohen }, 1412e126ba97SEli Cohen }, 1413e126ba97SEli Cohen [MLX5_QP_STATE_SQER] = { 1414e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1415e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1416e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, 141775959f56SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE, 1418a4774e90SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT | 1419a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1420a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1421a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE, 1422e126ba97SEli Cohen }, 1423e126ba97SEli Cohen }, 1424e126ba97SEli Cohen }; 1425e126ba97SEli Cohen 1426e126ba97SEli Cohen static int ib_nr_to_mlx5_nr(int ib_mask) 1427e126ba97SEli Cohen { 1428e126ba97SEli Cohen switch (ib_mask) { 1429e126ba97SEli Cohen case IB_QP_STATE: 1430e126ba97SEli Cohen return 0; 1431e126ba97SEli Cohen case IB_QP_CUR_STATE: 1432e126ba97SEli Cohen return 0; 1433e126ba97SEli Cohen case IB_QP_EN_SQD_ASYNC_NOTIFY: 1434e126ba97SEli Cohen return 0; 1435e126ba97SEli Cohen case IB_QP_ACCESS_FLAGS: 1436e126ba97SEli Cohen return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE | 1437e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE; 1438e126ba97SEli Cohen case IB_QP_PKEY_INDEX: 1439e126ba97SEli Cohen return MLX5_QP_OPTPAR_PKEY_INDEX; 1440e126ba97SEli Cohen case IB_QP_PORT: 1441e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRI_PORT; 1442e126ba97SEli Cohen case IB_QP_QKEY: 1443e126ba97SEli Cohen return MLX5_QP_OPTPAR_Q_KEY; 1444e126ba97SEli Cohen case IB_QP_AV: 1445e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH | 1446e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT; 1447e126ba97SEli Cohen case IB_QP_PATH_MTU: 1448e126ba97SEli Cohen return 0; 1449e126ba97SEli Cohen case IB_QP_TIMEOUT: 1450e126ba97SEli Cohen return MLX5_QP_OPTPAR_ACK_TIMEOUT; 1451e126ba97SEli Cohen case IB_QP_RETRY_CNT: 1452e126ba97SEli Cohen return MLX5_QP_OPTPAR_RETRY_COUNT; 1453e126ba97SEli Cohen case IB_QP_RNR_RETRY: 1454e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_RETRY; 1455e126ba97SEli Cohen case IB_QP_RQ_PSN: 1456e126ba97SEli Cohen return 0; 1457e126ba97SEli Cohen case IB_QP_MAX_QP_RD_ATOMIC: 1458e126ba97SEli Cohen return MLX5_QP_OPTPAR_SRA_MAX; 1459e126ba97SEli Cohen case IB_QP_ALT_PATH: 1460e126ba97SEli Cohen return MLX5_QP_OPTPAR_ALT_ADDR_PATH; 1461e126ba97SEli Cohen case IB_QP_MIN_RNR_TIMER: 1462e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_TIMEOUT; 1463e126ba97SEli Cohen case IB_QP_SQ_PSN: 1464e126ba97SEli Cohen return 0; 1465e126ba97SEli Cohen case IB_QP_MAX_DEST_RD_ATOMIC: 1466e126ba97SEli Cohen return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE | 1467e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE; 1468e126ba97SEli Cohen case IB_QP_PATH_MIG_STATE: 1469e126ba97SEli Cohen return MLX5_QP_OPTPAR_PM_STATE; 1470e126ba97SEli Cohen case IB_QP_CAP: 1471e126ba97SEli Cohen return 0; 1472e126ba97SEli Cohen case IB_QP_DEST_QPN: 1473e126ba97SEli Cohen return 0; 1474e126ba97SEli Cohen } 1475e126ba97SEli Cohen return 0; 1476e126ba97SEli Cohen } 1477e126ba97SEli Cohen 1478e126ba97SEli Cohen static int ib_mask_to_mlx5_opt(int ib_mask) 1479e126ba97SEli Cohen { 1480e126ba97SEli Cohen int result = 0; 1481e126ba97SEli Cohen int i; 1482e126ba97SEli Cohen 1483e126ba97SEli Cohen for (i = 0; i < 8 * sizeof(int); i++) { 1484e126ba97SEli Cohen if ((1 << i) & ib_mask) 1485e126ba97SEli Cohen result |= ib_nr_to_mlx5_nr(1 << i); 1486e126ba97SEli Cohen } 1487e126ba97SEli Cohen 1488e126ba97SEli Cohen return result; 1489e126ba97SEli Cohen } 1490e126ba97SEli Cohen 1491e126ba97SEli Cohen static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, 1492e126ba97SEli Cohen const struct ib_qp_attr *attr, int attr_mask, 1493e126ba97SEli Cohen enum ib_qp_state cur_state, enum ib_qp_state new_state) 1494e126ba97SEli Cohen { 1495e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1496e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1497e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1498e126ba97SEli Cohen struct mlx5_qp_context *context; 1499c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 1500e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1501e126ba97SEli Cohen struct mlx5_ib_pd *pd; 1502e126ba97SEli Cohen enum mlx5_qp_state mlx5_cur, mlx5_new; 1503e126ba97SEli Cohen enum mlx5_qp_optpar optpar; 1504e126ba97SEli Cohen int sqd_event; 1505e126ba97SEli Cohen int mlx5_st; 1506e126ba97SEli Cohen int err; 1507e126ba97SEli Cohen 1508c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 1509e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1510e126ba97SEli Cohen if (!in) 1511e126ba97SEli Cohen return -ENOMEM; 1512e126ba97SEli Cohen 1513e126ba97SEli Cohen context = &in->ctx; 1514e126ba97SEli Cohen err = to_mlx5_st(ibqp->qp_type); 1515e126ba97SEli Cohen if (err < 0) 1516e126ba97SEli Cohen goto out; 1517e126ba97SEli Cohen 1518e126ba97SEli Cohen context->flags = cpu_to_be32(err << 16); 1519e126ba97SEli Cohen 1520e126ba97SEli Cohen if (!(attr_mask & IB_QP_PATH_MIG_STATE)) { 1521e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1522e126ba97SEli Cohen } else { 1523e126ba97SEli Cohen switch (attr->path_mig_state) { 1524e126ba97SEli Cohen case IB_MIG_MIGRATED: 1525e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1526e126ba97SEli Cohen break; 1527e126ba97SEli Cohen case IB_MIG_REARM: 1528e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11); 1529e126ba97SEli Cohen break; 1530e126ba97SEli Cohen case IB_MIG_ARMED: 1531e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11); 1532e126ba97SEli Cohen break; 1533e126ba97SEli Cohen } 1534e126ba97SEli Cohen } 1535e126ba97SEli Cohen 1536e126ba97SEli Cohen if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { 1537e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_256 << 5) | 8; 1538e126ba97SEli Cohen } else if (ibqp->qp_type == IB_QPT_UD || 1539e126ba97SEli Cohen ibqp->qp_type == MLX5_IB_QPT_REG_UMR) { 1540e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_4096 << 5) | 12; 1541e126ba97SEli Cohen } else if (attr_mask & IB_QP_PATH_MTU) { 1542e126ba97SEli Cohen if (attr->path_mtu < IB_MTU_256 || 1543e126ba97SEli Cohen attr->path_mtu > IB_MTU_4096) { 1544e126ba97SEli Cohen mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu); 1545e126ba97SEli Cohen err = -EINVAL; 1546e126ba97SEli Cohen goto out; 1547e126ba97SEli Cohen } 1548c7a08ac7SEli Cohen context->mtu_msgmax = (attr->path_mtu << 5) | gen->log_max_msg; 1549e126ba97SEli Cohen } 1550e126ba97SEli Cohen 1551e126ba97SEli Cohen if (attr_mask & IB_QP_DEST_QPN) 1552e126ba97SEli Cohen context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num); 1553e126ba97SEli Cohen 1554e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1555e126ba97SEli Cohen context->pri_path.pkey_index = attr->pkey_index; 1556e126ba97SEli Cohen 1557e126ba97SEli Cohen /* todo implement counter_index functionality */ 1558e126ba97SEli Cohen 1559e126ba97SEli Cohen if (is_sqp(ibqp->qp_type)) 1560e126ba97SEli Cohen context->pri_path.port = qp->port; 1561e126ba97SEli Cohen 1562e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1563e126ba97SEli Cohen context->pri_path.port = attr->port_num; 1564e126ba97SEli Cohen 1565e126ba97SEli Cohen if (attr_mask & IB_QP_AV) { 1566e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path, 1567e126ba97SEli Cohen attr_mask & IB_QP_PORT ? attr->port_num : qp->port, 1568e126ba97SEli Cohen attr_mask, 0, attr); 1569e126ba97SEli Cohen if (err) 1570e126ba97SEli Cohen goto out; 1571e126ba97SEli Cohen } 1572e126ba97SEli Cohen 1573e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1574e126ba97SEli Cohen context->pri_path.ackto_lt |= attr->timeout << 3; 1575e126ba97SEli Cohen 1576e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) { 1577e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path, 1578e126ba97SEli Cohen attr->alt_port_num, attr_mask, 0, attr); 1579e126ba97SEli Cohen if (err) 1580e126ba97SEli Cohen goto out; 1581e126ba97SEli Cohen } 1582e126ba97SEli Cohen 1583e126ba97SEli Cohen pd = get_pd(qp); 1584e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1585e126ba97SEli Cohen 1586e126ba97SEli Cohen context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn); 1587e126ba97SEli Cohen context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0; 1588e126ba97SEli Cohen context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0; 1589e126ba97SEli Cohen context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28); 1590e126ba97SEli Cohen 1591e126ba97SEli Cohen if (attr_mask & IB_QP_RNR_RETRY) 1592e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->rnr_retry << 13); 1593e126ba97SEli Cohen 1594e126ba97SEli Cohen if (attr_mask & IB_QP_RETRY_CNT) 1595e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->retry_cnt << 16); 1596e126ba97SEli Cohen 1597e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 1598e126ba97SEli Cohen if (attr->max_rd_atomic) 1599e126ba97SEli Cohen context->params1 |= 1600e126ba97SEli Cohen cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); 1601e126ba97SEli Cohen } 1602e126ba97SEli Cohen 1603e126ba97SEli Cohen if (attr_mask & IB_QP_SQ_PSN) 1604e126ba97SEli Cohen context->next_send_psn = cpu_to_be32(attr->sq_psn); 1605e126ba97SEli Cohen 1606e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 1607e126ba97SEli Cohen if (attr->max_dest_rd_atomic) 1608e126ba97SEli Cohen context->params2 |= 1609e126ba97SEli Cohen cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21); 1610e126ba97SEli Cohen } 1611e126ba97SEli Cohen 1612e126ba97SEli Cohen if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) 1613e126ba97SEli Cohen context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask); 1614e126ba97SEli Cohen 1615e126ba97SEli Cohen if (attr_mask & IB_QP_MIN_RNR_TIMER) 1616e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24); 1617e126ba97SEli Cohen 1618e126ba97SEli Cohen if (attr_mask & IB_QP_RQ_PSN) 1619e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn); 1620e126ba97SEli Cohen 1621e126ba97SEli Cohen if (attr_mask & IB_QP_QKEY) 1622e126ba97SEli Cohen context->qkey = cpu_to_be32(attr->qkey); 1623e126ba97SEli Cohen 1624e126ba97SEli Cohen if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1625e126ba97SEli Cohen context->db_rec_addr = cpu_to_be64(qp->db.dma); 1626e126ba97SEli Cohen 1627e126ba97SEli Cohen if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && 1628e126ba97SEli Cohen attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify) 1629e126ba97SEli Cohen sqd_event = 1; 1630e126ba97SEli Cohen else 1631e126ba97SEli Cohen sqd_event = 0; 1632e126ba97SEli Cohen 1633e126ba97SEli Cohen if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1634e126ba97SEli Cohen context->sq_crq_size |= cpu_to_be16(1 << 4); 1635e126ba97SEli Cohen 1636e126ba97SEli Cohen 1637e126ba97SEli Cohen mlx5_cur = to_mlx5_state(cur_state); 1638e126ba97SEli Cohen mlx5_new = to_mlx5_state(new_state); 1639e126ba97SEli Cohen mlx5_st = to_mlx5_st(ibqp->qp_type); 164007c9113fSEli Cohen if (mlx5_st < 0) 1641e126ba97SEli Cohen goto out; 1642e126ba97SEli Cohen 1643e126ba97SEli Cohen optpar = ib_mask_to_mlx5_opt(attr_mask); 1644e126ba97SEli Cohen optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st]; 1645e126ba97SEli Cohen in->optparam = cpu_to_be32(optpar); 16469603b61dSJack Morgenstein err = mlx5_core_qp_modify(dev->mdev, to_mlx5_state(cur_state), 1647e126ba97SEli Cohen to_mlx5_state(new_state), in, sqd_event, 1648e126ba97SEli Cohen &qp->mqp); 1649e126ba97SEli Cohen if (err) 1650e126ba97SEli Cohen goto out; 1651e126ba97SEli Cohen 1652e126ba97SEli Cohen qp->state = new_state; 1653e126ba97SEli Cohen 1654e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1655e126ba97SEli Cohen qp->atomic_rd_en = attr->qp_access_flags; 1656e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1657e126ba97SEli Cohen qp->resp_depth = attr->max_dest_rd_atomic; 1658e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1659e126ba97SEli Cohen qp->port = attr->port_num; 1660e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) 1661e126ba97SEli Cohen qp->alt_port = attr->alt_port_num; 1662e126ba97SEli Cohen 1663e126ba97SEli Cohen /* 1664e126ba97SEli Cohen * If we moved a kernel QP to RESET, clean up all old CQ 1665e126ba97SEli Cohen * entries and reinitialize the QP. 1666e126ba97SEli Cohen */ 1667e126ba97SEli Cohen if (new_state == IB_QPS_RESET && !ibqp->uobject) { 1668e126ba97SEli Cohen mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1669e126ba97SEli Cohen ibqp->srq ? to_msrq(ibqp->srq) : NULL); 1670e126ba97SEli Cohen if (send_cq != recv_cq) 1671e126ba97SEli Cohen mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1672e126ba97SEli Cohen 1673e126ba97SEli Cohen qp->rq.head = 0; 1674e126ba97SEli Cohen qp->rq.tail = 0; 1675e126ba97SEli Cohen qp->sq.head = 0; 1676e126ba97SEli Cohen qp->sq.tail = 0; 1677e126ba97SEli Cohen qp->sq.cur_post = 0; 1678e126ba97SEli Cohen qp->sq.last_poll = 0; 1679e126ba97SEli Cohen qp->db.db[MLX5_RCV_DBR] = 0; 1680e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = 0; 1681e126ba97SEli Cohen } 1682e126ba97SEli Cohen 1683e126ba97SEli Cohen out: 1684e126ba97SEli Cohen kfree(in); 1685e126ba97SEli Cohen return err; 1686e126ba97SEli Cohen } 1687e126ba97SEli Cohen 1688e126ba97SEli Cohen int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1689e126ba97SEli Cohen int attr_mask, struct ib_udata *udata) 1690e126ba97SEli Cohen { 1691e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1692e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1693e126ba97SEli Cohen enum ib_qp_state cur_state, new_state; 1694c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 1695e126ba97SEli Cohen int err = -EINVAL; 1696e126ba97SEli Cohen int port; 1697e126ba97SEli Cohen 1698c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 1699e126ba97SEli Cohen mutex_lock(&qp->mutex); 1700e126ba97SEli Cohen 1701e126ba97SEli Cohen cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state; 1702e126ba97SEli Cohen new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state; 1703e126ba97SEli Cohen 1704e126ba97SEli Cohen if (ibqp->qp_type != MLX5_IB_QPT_REG_UMR && 1705dd5f03beSMatan Barak !ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask, 1706dd5f03beSMatan Barak IB_LINK_LAYER_UNSPECIFIED)) 1707e126ba97SEli Cohen goto out; 1708e126ba97SEli Cohen 1709e126ba97SEli Cohen if ((attr_mask & IB_QP_PORT) && 1710c7a08ac7SEli Cohen (attr->port_num == 0 || attr->port_num > gen->num_ports)) 1711e126ba97SEli Cohen goto out; 1712e126ba97SEli Cohen 1713e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) { 1714e126ba97SEli Cohen port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 1715c7a08ac7SEli Cohen if (attr->pkey_index >= gen->port[port - 1].pkey_table_len) 1716e126ba97SEli Cohen goto out; 1717e126ba97SEli Cohen } 1718e126ba97SEli Cohen 1719e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && 1720c7a08ac7SEli Cohen attr->max_rd_atomic > (1 << gen->log_max_ra_res_qp)) 1721e126ba97SEli Cohen goto out; 1722e126ba97SEli Cohen 1723e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && 1724c7a08ac7SEli Cohen attr->max_dest_rd_atomic > (1 << gen->log_max_ra_req_qp)) 1725e126ba97SEli Cohen goto out; 1726e126ba97SEli Cohen 1727e126ba97SEli Cohen if (cur_state == new_state && cur_state == IB_QPS_RESET) { 1728e126ba97SEli Cohen err = 0; 1729e126ba97SEli Cohen goto out; 1730e126ba97SEli Cohen } 1731e126ba97SEli Cohen 1732e126ba97SEli Cohen err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state); 1733e126ba97SEli Cohen 1734e126ba97SEli Cohen out: 1735e126ba97SEli Cohen mutex_unlock(&qp->mutex); 1736e126ba97SEli Cohen return err; 1737e126ba97SEli Cohen } 1738e126ba97SEli Cohen 1739e126ba97SEli Cohen static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq) 1740e126ba97SEli Cohen { 1741e126ba97SEli Cohen struct mlx5_ib_cq *cq; 1742e126ba97SEli Cohen unsigned cur; 1743e126ba97SEli Cohen 1744e126ba97SEli Cohen cur = wq->head - wq->tail; 1745e126ba97SEli Cohen if (likely(cur + nreq < wq->max_post)) 1746e126ba97SEli Cohen return 0; 1747e126ba97SEli Cohen 1748e126ba97SEli Cohen cq = to_mcq(ib_cq); 1749e126ba97SEli Cohen spin_lock(&cq->lock); 1750e126ba97SEli Cohen cur = wq->head - wq->tail; 1751e126ba97SEli Cohen spin_unlock(&cq->lock); 1752e126ba97SEli Cohen 1753e126ba97SEli Cohen return cur + nreq >= wq->max_post; 1754e126ba97SEli Cohen } 1755e126ba97SEli Cohen 1756e126ba97SEli Cohen static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, 1757e126ba97SEli Cohen u64 remote_addr, u32 rkey) 1758e126ba97SEli Cohen { 1759e126ba97SEli Cohen rseg->raddr = cpu_to_be64(remote_addr); 1760e126ba97SEli Cohen rseg->rkey = cpu_to_be32(rkey); 1761e126ba97SEli Cohen rseg->reserved = 0; 1762e126ba97SEli Cohen } 1763e126ba97SEli Cohen 1764e126ba97SEli Cohen static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, 1765e126ba97SEli Cohen struct ib_send_wr *wr) 1766e126ba97SEli Cohen { 1767e126ba97SEli Cohen memcpy(&dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof(struct mlx5_av)); 1768e126ba97SEli Cohen dseg->av.dqp_dct = cpu_to_be32(wr->wr.ud.remote_qpn | MLX5_EXTENDED_UD_AV); 1769e126ba97SEli Cohen dseg->av.key.qkey.qkey = cpu_to_be32(wr->wr.ud.remote_qkey); 1770e126ba97SEli Cohen } 1771e126ba97SEli Cohen 1772e126ba97SEli Cohen static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg) 1773e126ba97SEli Cohen { 1774e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(sg->length); 1775e126ba97SEli Cohen dseg->lkey = cpu_to_be32(sg->lkey); 1776e126ba97SEli Cohen dseg->addr = cpu_to_be64(sg->addr); 1777e126ba97SEli Cohen } 1778e126ba97SEli Cohen 1779e126ba97SEli Cohen static __be16 get_klm_octo(int npages) 1780e126ba97SEli Cohen { 1781e126ba97SEli Cohen return cpu_to_be16(ALIGN(npages, 8) / 2); 1782e126ba97SEli Cohen } 1783e126ba97SEli Cohen 1784e126ba97SEli Cohen static __be64 frwr_mkey_mask(void) 1785e126ba97SEli Cohen { 1786e126ba97SEli Cohen u64 result; 1787e126ba97SEli Cohen 1788e126ba97SEli Cohen result = MLX5_MKEY_MASK_LEN | 1789e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1790e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1791e126ba97SEli Cohen MLX5_MKEY_MASK_EN_RINVAL | 1792e126ba97SEli Cohen MLX5_MKEY_MASK_KEY | 1793e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1794e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1795e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1796e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1797e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1798e126ba97SEli Cohen MLX5_MKEY_MASK_SMALL_FENCE | 1799e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1800e126ba97SEli Cohen 1801e126ba97SEli Cohen return cpu_to_be64(result); 1802e126ba97SEli Cohen } 1803e126ba97SEli Cohen 1804e6631814SSagi Grimberg static __be64 sig_mkey_mask(void) 1805e6631814SSagi Grimberg { 1806e6631814SSagi Grimberg u64 result; 1807e6631814SSagi Grimberg 1808e6631814SSagi Grimberg result = MLX5_MKEY_MASK_LEN | 1809e6631814SSagi Grimberg MLX5_MKEY_MASK_PAGE_SIZE | 1810e6631814SSagi Grimberg MLX5_MKEY_MASK_START_ADDR | 1811d5436ba0SSagi Grimberg MLX5_MKEY_MASK_EN_SIGERR | 1812e6631814SSagi Grimberg MLX5_MKEY_MASK_EN_RINVAL | 1813e6631814SSagi Grimberg MLX5_MKEY_MASK_KEY | 1814e6631814SSagi Grimberg MLX5_MKEY_MASK_LR | 1815e6631814SSagi Grimberg MLX5_MKEY_MASK_LW | 1816e6631814SSagi Grimberg MLX5_MKEY_MASK_RR | 1817e6631814SSagi Grimberg MLX5_MKEY_MASK_RW | 1818e6631814SSagi Grimberg MLX5_MKEY_MASK_SMALL_FENCE | 1819e6631814SSagi Grimberg MLX5_MKEY_MASK_FREE | 1820e6631814SSagi Grimberg MLX5_MKEY_MASK_BSF_EN; 1821e6631814SSagi Grimberg 1822e6631814SSagi Grimberg return cpu_to_be64(result); 1823e6631814SSagi Grimberg } 1824e6631814SSagi Grimberg 1825e126ba97SEli Cohen static void set_frwr_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1826e126ba97SEli Cohen struct ib_send_wr *wr, int li) 1827e126ba97SEli Cohen { 1828e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1829e126ba97SEli Cohen 1830e126ba97SEli Cohen if (li) { 1831e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); 1832e126ba97SEli Cohen umr->flags = 1 << 7; 1833e126ba97SEli Cohen return; 1834e126ba97SEli Cohen } 1835e126ba97SEli Cohen 1836e126ba97SEli Cohen umr->flags = (1 << 5); /* fail if not free */ 1837e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(wr->wr.fast_reg.page_list_len); 1838e126ba97SEli Cohen umr->mkey_mask = frwr_mkey_mask(); 1839e126ba97SEli Cohen } 1840e126ba97SEli Cohen 1841e126ba97SEli Cohen static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1842e126ba97SEli Cohen struct ib_send_wr *wr) 1843e126ba97SEli Cohen { 1844e126ba97SEli Cohen struct umr_wr *umrwr = (struct umr_wr *)&wr->wr.fast_reg; 1845e126ba97SEli Cohen u64 mask; 1846e126ba97SEli Cohen 1847e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1848e126ba97SEli Cohen 1849e126ba97SEli Cohen if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) { 1850e126ba97SEli Cohen umr->flags = 1 << 5; /* fail if not free */ 1851e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(umrwr->npages); 1852e126ba97SEli Cohen mask = MLX5_MKEY_MASK_LEN | 1853e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1854e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1855e126ba97SEli Cohen MLX5_MKEY_MASK_PD | 1856e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1857e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1858746b5583SEli Cohen MLX5_MKEY_MASK_KEY | 1859e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1860e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1861e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1862e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1863e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(mask); 1864e126ba97SEli Cohen } else { 1865e126ba97SEli Cohen umr->flags = 2 << 5; /* fail if free */ 1866e126ba97SEli Cohen mask = MLX5_MKEY_MASK_FREE; 1867e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(mask); 1868e126ba97SEli Cohen } 1869e126ba97SEli Cohen 1870e126ba97SEli Cohen if (!wr->num_sge) 1871e126ba97SEli Cohen umr->flags |= (1 << 7); /* inline */ 1872e126ba97SEli Cohen } 1873e126ba97SEli Cohen 1874e126ba97SEli Cohen static u8 get_umr_flags(int acc) 1875e126ba97SEli Cohen { 1876e126ba97SEli Cohen return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 1877e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 1878e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 1879e126ba97SEli Cohen (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 18802ac45934SSagi Grimberg MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN; 1881e126ba97SEli Cohen } 1882e126ba97SEli Cohen 1883e126ba97SEli Cohen static void set_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr, 1884e126ba97SEli Cohen int li, int *writ) 1885e126ba97SEli Cohen { 1886e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 1887e126ba97SEli Cohen if (li) { 1888e126ba97SEli Cohen seg->status = 1 << 6; 1889e126ba97SEli Cohen return; 1890e126ba97SEli Cohen } 1891e126ba97SEli Cohen 18922ac45934SSagi Grimberg seg->flags = get_umr_flags(wr->wr.fast_reg.access_flags) | 18932ac45934SSagi Grimberg MLX5_ACCESS_MODE_MTT; 1894e126ba97SEli Cohen *writ = seg->flags & (MLX5_PERM_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE); 1895e126ba97SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32((wr->wr.fast_reg.rkey & 0xff) | 0xffffff00); 1896e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL); 1897e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 1898e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 1899e126ba97SEli Cohen seg->xlt_oct_size = cpu_to_be32((wr->wr.fast_reg.page_list_len + 1) / 2); 1900e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 1901e126ba97SEli Cohen } 1902e126ba97SEli Cohen 1903e126ba97SEli Cohen static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr) 1904e126ba97SEli Cohen { 1905e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 1906e126ba97SEli Cohen if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) { 1907e126ba97SEli Cohen seg->status = 1 << 6; 1908e126ba97SEli Cohen return; 1909e126ba97SEli Cohen } 1910e126ba97SEli Cohen 1911e126ba97SEli Cohen seg->flags = convert_access(wr->wr.fast_reg.access_flags); 1912e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(to_mpd((struct ib_pd *)wr->wr.fast_reg.page_list)->pdn); 1913e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 1914e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 1915e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 1916746b5583SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 | 1917746b5583SEli Cohen mlx5_mkey_variant(wr->wr.fast_reg.rkey)); 1918e126ba97SEli Cohen } 1919e126ba97SEli Cohen 1920e126ba97SEli Cohen static void set_frwr_pages(struct mlx5_wqe_data_seg *dseg, 1921e126ba97SEli Cohen struct ib_send_wr *wr, 1922e126ba97SEli Cohen struct mlx5_core_dev *mdev, 1923e126ba97SEli Cohen struct mlx5_ib_pd *pd, 1924e126ba97SEli Cohen int writ) 1925e126ba97SEli Cohen { 1926e126ba97SEli Cohen struct mlx5_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list); 1927e126ba97SEli Cohen u64 *page_list = wr->wr.fast_reg.page_list->page_list; 1928e126ba97SEli Cohen u64 perm = MLX5_EN_RD | (writ ? MLX5_EN_WR : 0); 1929e126ba97SEli Cohen int i; 1930e126ba97SEli Cohen 1931e126ba97SEli Cohen for (i = 0; i < wr->wr.fast_reg.page_list_len; i++) 1932e126ba97SEli Cohen mfrpl->mapped_page_list[i] = cpu_to_be64(page_list[i] | perm); 1933e126ba97SEli Cohen dseg->addr = cpu_to_be64(mfrpl->map); 1934e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(ALIGN(sizeof(u64) * wr->wr.fast_reg.page_list_len, 64)); 1935e126ba97SEli Cohen dseg->lkey = cpu_to_be32(pd->pa_lkey); 1936e126ba97SEli Cohen } 1937e126ba97SEli Cohen 1938e126ba97SEli Cohen static __be32 send_ieth(struct ib_send_wr *wr) 1939e126ba97SEli Cohen { 1940e126ba97SEli Cohen switch (wr->opcode) { 1941e126ba97SEli Cohen case IB_WR_SEND_WITH_IMM: 1942e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 1943e126ba97SEli Cohen return wr->ex.imm_data; 1944e126ba97SEli Cohen 1945e126ba97SEli Cohen case IB_WR_SEND_WITH_INV: 1946e126ba97SEli Cohen return cpu_to_be32(wr->ex.invalidate_rkey); 1947e126ba97SEli Cohen 1948e126ba97SEli Cohen default: 1949e126ba97SEli Cohen return 0; 1950e126ba97SEli Cohen } 1951e126ba97SEli Cohen } 1952e126ba97SEli Cohen 1953e126ba97SEli Cohen static u8 calc_sig(void *wqe, int size) 1954e126ba97SEli Cohen { 1955e126ba97SEli Cohen u8 *p = wqe; 1956e126ba97SEli Cohen u8 res = 0; 1957e126ba97SEli Cohen int i; 1958e126ba97SEli Cohen 1959e126ba97SEli Cohen for (i = 0; i < size; i++) 1960e126ba97SEli Cohen res ^= p[i]; 1961e126ba97SEli Cohen 1962e126ba97SEli Cohen return ~res; 1963e126ba97SEli Cohen } 1964e126ba97SEli Cohen 1965e126ba97SEli Cohen static u8 wq_sig(void *wqe) 1966e126ba97SEli Cohen { 1967e126ba97SEli Cohen return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4); 1968e126ba97SEli Cohen } 1969e126ba97SEli Cohen 1970e126ba97SEli Cohen static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr, 1971e126ba97SEli Cohen void *wqe, int *sz) 1972e126ba97SEli Cohen { 1973e126ba97SEli Cohen struct mlx5_wqe_inline_seg *seg; 1974e126ba97SEli Cohen void *qend = qp->sq.qend; 1975e126ba97SEli Cohen void *addr; 1976e126ba97SEli Cohen int inl = 0; 1977e126ba97SEli Cohen int copy; 1978e126ba97SEli Cohen int len; 1979e126ba97SEli Cohen int i; 1980e126ba97SEli Cohen 1981e126ba97SEli Cohen seg = wqe; 1982e126ba97SEli Cohen wqe += sizeof(*seg); 1983e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) { 1984e126ba97SEli Cohen addr = (void *)(unsigned long)(wr->sg_list[i].addr); 1985e126ba97SEli Cohen len = wr->sg_list[i].length; 1986e126ba97SEli Cohen inl += len; 1987e126ba97SEli Cohen 1988e126ba97SEli Cohen if (unlikely(inl > qp->max_inline_data)) 1989e126ba97SEli Cohen return -ENOMEM; 1990e126ba97SEli Cohen 1991e126ba97SEli Cohen if (unlikely(wqe + len > qend)) { 1992e126ba97SEli Cohen copy = qend - wqe; 1993e126ba97SEli Cohen memcpy(wqe, addr, copy); 1994e126ba97SEli Cohen addr += copy; 1995e126ba97SEli Cohen len -= copy; 1996e126ba97SEli Cohen wqe = mlx5_get_send_wqe(qp, 0); 1997e126ba97SEli Cohen } 1998e126ba97SEli Cohen memcpy(wqe, addr, len); 1999e126ba97SEli Cohen wqe += len; 2000e126ba97SEli Cohen } 2001e126ba97SEli Cohen 2002e126ba97SEli Cohen seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG); 2003e126ba97SEli Cohen 2004e126ba97SEli Cohen *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16; 2005e126ba97SEli Cohen 2006e126ba97SEli Cohen return 0; 2007e126ba97SEli Cohen } 2008e126ba97SEli Cohen 2009e6631814SSagi Grimberg static u16 prot_field_size(enum ib_signature_type type) 2010e6631814SSagi Grimberg { 2011e6631814SSagi Grimberg switch (type) { 2012e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2013e6631814SSagi Grimberg return MLX5_DIF_SIZE; 2014e6631814SSagi Grimberg default: 2015e6631814SSagi Grimberg return 0; 2016e6631814SSagi Grimberg } 2017e6631814SSagi Grimberg } 2018e6631814SSagi Grimberg 2019e6631814SSagi Grimberg static u8 bs_selector(int block_size) 2020e6631814SSagi Grimberg { 2021e6631814SSagi Grimberg switch (block_size) { 2022e6631814SSagi Grimberg case 512: return 0x1; 2023e6631814SSagi Grimberg case 520: return 0x2; 2024e6631814SSagi Grimberg case 4096: return 0x3; 2025e6631814SSagi Grimberg case 4160: return 0x4; 2026e6631814SSagi Grimberg case 1073741824: return 0x5; 2027e6631814SSagi Grimberg default: return 0; 2028e6631814SSagi Grimberg } 2029e6631814SSagi Grimberg } 2030e6631814SSagi Grimberg 203178eda2bbSSagi Grimberg static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain, 2032142537f4SSagi Grimberg struct mlx5_bsf_inl *inl) 2033e6631814SSagi Grimberg { 2034142537f4SSagi Grimberg /* Valid inline section and allow BSF refresh */ 2035142537f4SSagi Grimberg inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID | 2036142537f4SSagi Grimberg MLX5_BSF_REFRESH_DIF); 2037142537f4SSagi Grimberg inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag); 2038142537f4SSagi Grimberg inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag); 2039142537f4SSagi Grimberg /* repeating block */ 2040142537f4SSagi Grimberg inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK; 2041142537f4SSagi Grimberg inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ? 2042142537f4SSagi Grimberg MLX5_DIF_CRC : MLX5_DIF_IPCS; 2043e6631814SSagi Grimberg 204478eda2bbSSagi Grimberg if (domain->sig.dif.ref_remap) 204578eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG; 2046e6631814SSagi Grimberg 204778eda2bbSSagi Grimberg if (domain->sig.dif.app_escape) { 204878eda2bbSSagi Grimberg if (domain->sig.dif.ref_escape) 204978eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE; 205078eda2bbSSagi Grimberg else 205178eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE; 2052e6631814SSagi Grimberg } 2053e6631814SSagi Grimberg 205478eda2bbSSagi Grimberg inl->dif_app_bitmask_check = 205578eda2bbSSagi Grimberg cpu_to_be16(domain->sig.dif.apptag_check_mask); 2056e6631814SSagi Grimberg } 2057e6631814SSagi Grimberg 2058e6631814SSagi Grimberg static int mlx5_set_bsf(struct ib_mr *sig_mr, 2059e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs, 2060e6631814SSagi Grimberg struct mlx5_bsf *bsf, u32 data_size) 2061e6631814SSagi Grimberg { 2062e6631814SSagi Grimberg struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig; 2063e6631814SSagi Grimberg struct mlx5_bsf_basic *basic = &bsf->basic; 2064e6631814SSagi Grimberg struct ib_sig_domain *mem = &sig_attrs->mem; 2065e6631814SSagi Grimberg struct ib_sig_domain *wire = &sig_attrs->wire; 2066e6631814SSagi Grimberg 2067c7f44fbdSSagi Grimberg memset(bsf, 0, sizeof(*bsf)); 2068e6631814SSagi Grimberg 2069142537f4SSagi Grimberg /* Basic + Extended + Inline */ 2070142537f4SSagi Grimberg basic->bsf_size_sbs = 1 << 7; 2071e6631814SSagi Grimberg /* Input domain check byte mask */ 2072e6631814SSagi Grimberg basic->check_byte_mask = sig_attrs->check_mask; 207378eda2bbSSagi Grimberg basic->raw_data_size = cpu_to_be32(data_size); 207478eda2bbSSagi Grimberg 207578eda2bbSSagi Grimberg /* Memory domain */ 207678eda2bbSSagi Grimberg switch (sig_attrs->mem.sig_type) { 207778eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 207878eda2bbSSagi Grimberg break; 207978eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 208078eda2bbSSagi Grimberg basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval); 208178eda2bbSSagi Grimberg basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx); 208278eda2bbSSagi Grimberg mlx5_fill_inl_bsf(mem, &bsf->m_inl); 208378eda2bbSSagi Grimberg break; 208478eda2bbSSagi Grimberg default: 208578eda2bbSSagi Grimberg return -EINVAL; 208678eda2bbSSagi Grimberg } 208778eda2bbSSagi Grimberg 208878eda2bbSSagi Grimberg /* Wire domain */ 208978eda2bbSSagi Grimberg switch (sig_attrs->wire.sig_type) { 209078eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 209178eda2bbSSagi Grimberg break; 209278eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2093e6631814SSagi Grimberg if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval && 209478eda2bbSSagi Grimberg mem->sig_type == wire->sig_type) { 2095e6631814SSagi Grimberg /* Same block structure */ 2096142537f4SSagi Grimberg basic->bsf_size_sbs |= 1 << 4; 2097e6631814SSagi Grimberg if (mem->sig.dif.bg_type == wire->sig.dif.bg_type) 2098fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK; 2099c7f44fbdSSagi Grimberg if (mem->sig.dif.app_tag == wire->sig.dif.app_tag) 2100fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK; 2101c7f44fbdSSagi Grimberg if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag) 2102fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK; 2103e6631814SSagi Grimberg } else 2104e6631814SSagi Grimberg basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval); 2105e6631814SSagi Grimberg 2106142537f4SSagi Grimberg basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx); 210778eda2bbSSagi Grimberg mlx5_fill_inl_bsf(wire, &bsf->w_inl); 2108e6631814SSagi Grimberg break; 2109e6631814SSagi Grimberg default: 2110e6631814SSagi Grimberg return -EINVAL; 2111e6631814SSagi Grimberg } 2112e6631814SSagi Grimberg 2113e6631814SSagi Grimberg return 0; 2114e6631814SSagi Grimberg } 2115e6631814SSagi Grimberg 2116e6631814SSagi Grimberg static int set_sig_data_segment(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, 2117e6631814SSagi Grimberg void **seg, int *size) 2118e6631814SSagi Grimberg { 2119e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs = wr->wr.sig_handover.sig_attrs; 2120e6631814SSagi Grimberg struct ib_mr *sig_mr = wr->wr.sig_handover.sig_mr; 2121e6631814SSagi Grimberg struct mlx5_bsf *bsf; 2122e6631814SSagi Grimberg u32 data_len = wr->sg_list->length; 2123e6631814SSagi Grimberg u32 data_key = wr->sg_list->lkey; 2124e6631814SSagi Grimberg u64 data_va = wr->sg_list->addr; 2125e6631814SSagi Grimberg int ret; 2126e6631814SSagi Grimberg int wqe_size; 2127e6631814SSagi Grimberg 21285c273b16SSagi Grimberg if (!wr->wr.sig_handover.prot || 21295c273b16SSagi Grimberg (data_key == wr->wr.sig_handover.prot->lkey && 21305c273b16SSagi Grimberg data_va == wr->wr.sig_handover.prot->addr && 21315c273b16SSagi Grimberg data_len == wr->wr.sig_handover.prot->length)) { 2132e6631814SSagi Grimberg /** 2133e6631814SSagi Grimberg * Source domain doesn't contain signature information 21345c273b16SSagi Grimberg * or data and protection are interleaved in memory. 2135e6631814SSagi Grimberg * So need construct: 2136e6631814SSagi Grimberg * ------------------ 2137e6631814SSagi Grimberg * | data_klm | 2138e6631814SSagi Grimberg * ------------------ 2139e6631814SSagi Grimberg * | BSF | 2140e6631814SSagi Grimberg * ------------------ 2141e6631814SSagi Grimberg **/ 2142e6631814SSagi Grimberg struct mlx5_klm *data_klm = *seg; 2143e6631814SSagi Grimberg 2144e6631814SSagi Grimberg data_klm->bcount = cpu_to_be32(data_len); 2145e6631814SSagi Grimberg data_klm->key = cpu_to_be32(data_key); 2146e6631814SSagi Grimberg data_klm->va = cpu_to_be64(data_va); 2147e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*data_klm), 64); 2148e6631814SSagi Grimberg } else { 2149e6631814SSagi Grimberg /** 2150e6631814SSagi Grimberg * Source domain contains signature information 2151e6631814SSagi Grimberg * So need construct a strided block format: 2152e6631814SSagi Grimberg * --------------------------- 2153e6631814SSagi Grimberg * | stride_block_ctrl | 2154e6631814SSagi Grimberg * --------------------------- 2155e6631814SSagi Grimberg * | data_klm | 2156e6631814SSagi Grimberg * --------------------------- 2157e6631814SSagi Grimberg * | prot_klm | 2158e6631814SSagi Grimberg * --------------------------- 2159e6631814SSagi Grimberg * | BSF | 2160e6631814SSagi Grimberg * --------------------------- 2161e6631814SSagi Grimberg **/ 2162e6631814SSagi Grimberg struct mlx5_stride_block_ctrl_seg *sblock_ctrl; 2163e6631814SSagi Grimberg struct mlx5_stride_block_entry *data_sentry; 2164e6631814SSagi Grimberg struct mlx5_stride_block_entry *prot_sentry; 2165e6631814SSagi Grimberg u32 prot_key = wr->wr.sig_handover.prot->lkey; 2166e6631814SSagi Grimberg u64 prot_va = wr->wr.sig_handover.prot->addr; 2167e6631814SSagi Grimberg u16 block_size = sig_attrs->mem.sig.dif.pi_interval; 2168e6631814SSagi Grimberg int prot_size; 2169e6631814SSagi Grimberg 2170e6631814SSagi Grimberg sblock_ctrl = *seg; 2171e6631814SSagi Grimberg data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl); 2172e6631814SSagi Grimberg prot_sentry = (void *)data_sentry + sizeof(*data_sentry); 2173e6631814SSagi Grimberg 2174e6631814SSagi Grimberg prot_size = prot_field_size(sig_attrs->mem.sig_type); 2175e6631814SSagi Grimberg if (!prot_size) { 2176e6631814SSagi Grimberg pr_err("Bad block size given: %u\n", block_size); 2177e6631814SSagi Grimberg return -EINVAL; 2178e6631814SSagi Grimberg } 2179e6631814SSagi Grimberg sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size + 2180e6631814SSagi Grimberg prot_size); 2181e6631814SSagi Grimberg sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP); 2182e6631814SSagi Grimberg sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size); 2183e6631814SSagi Grimberg sblock_ctrl->num_entries = cpu_to_be16(2); 2184e6631814SSagi Grimberg 2185e6631814SSagi Grimberg data_sentry->bcount = cpu_to_be16(block_size); 2186e6631814SSagi Grimberg data_sentry->key = cpu_to_be32(data_key); 2187e6631814SSagi Grimberg data_sentry->va = cpu_to_be64(data_va); 21885c273b16SSagi Grimberg data_sentry->stride = cpu_to_be16(block_size); 21895c273b16SSagi Grimberg 2190e6631814SSagi Grimberg prot_sentry->bcount = cpu_to_be16(prot_size); 2191e6631814SSagi Grimberg prot_sentry->key = cpu_to_be32(prot_key); 2192e6631814SSagi Grimberg prot_sentry->va = cpu_to_be64(prot_va); 2193e6631814SSagi Grimberg prot_sentry->stride = cpu_to_be16(prot_size); 21945c273b16SSagi Grimberg 2195e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) + 2196e6631814SSagi Grimberg sizeof(*prot_sentry), 64); 2197e6631814SSagi Grimberg } 2198e6631814SSagi Grimberg 2199e6631814SSagi Grimberg *seg += wqe_size; 2200e6631814SSagi Grimberg *size += wqe_size / 16; 2201e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2202e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2203e6631814SSagi Grimberg 2204e6631814SSagi Grimberg bsf = *seg; 2205e6631814SSagi Grimberg ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len); 2206e6631814SSagi Grimberg if (ret) 2207e6631814SSagi Grimberg return -EINVAL; 2208e6631814SSagi Grimberg 2209e6631814SSagi Grimberg *seg += sizeof(*bsf); 2210e6631814SSagi Grimberg *size += sizeof(*bsf) / 16; 2211e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2212e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2213e6631814SSagi Grimberg 2214e6631814SSagi Grimberg return 0; 2215e6631814SSagi Grimberg } 2216e6631814SSagi Grimberg 2217e6631814SSagi Grimberg static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg, 2218e6631814SSagi Grimberg struct ib_send_wr *wr, u32 nelements, 2219e6631814SSagi Grimberg u32 length, u32 pdn) 2220e6631814SSagi Grimberg { 2221e6631814SSagi Grimberg struct ib_mr *sig_mr = wr->wr.sig_handover.sig_mr; 2222e6631814SSagi Grimberg u32 sig_key = sig_mr->rkey; 2223d5436ba0SSagi Grimberg u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1; 2224e6631814SSagi Grimberg 2225e6631814SSagi Grimberg memset(seg, 0, sizeof(*seg)); 2226e6631814SSagi Grimberg 2227e6631814SSagi Grimberg seg->flags = get_umr_flags(wr->wr.sig_handover.access_flags) | 2228e6631814SSagi Grimberg MLX5_ACCESS_MODE_KLM; 2229e6631814SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00); 2230d5436ba0SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 | 2231e6631814SSagi Grimberg MLX5_MKEY_BSF_EN | pdn); 2232e6631814SSagi Grimberg seg->len = cpu_to_be64(length); 2233e6631814SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements))); 2234e6631814SSagi Grimberg seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE); 2235e6631814SSagi Grimberg } 2236e6631814SSagi Grimberg 2237e6631814SSagi Grimberg static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2238e6631814SSagi Grimberg struct ib_send_wr *wr, u32 nelements) 2239e6631814SSagi Grimberg { 2240e6631814SSagi Grimberg memset(umr, 0, sizeof(*umr)); 2241e6631814SSagi Grimberg 2242e6631814SSagi Grimberg umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE; 2243e6631814SSagi Grimberg umr->klm_octowords = get_klm_octo(nelements); 2244e6631814SSagi Grimberg umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE); 2245e6631814SSagi Grimberg umr->mkey_mask = sig_mkey_mask(); 2246e6631814SSagi Grimberg } 2247e6631814SSagi Grimberg 2248e6631814SSagi Grimberg 2249e6631814SSagi Grimberg static int set_sig_umr_wr(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, 2250e6631814SSagi Grimberg void **seg, int *size) 2251e6631814SSagi Grimberg { 2252e6631814SSagi Grimberg struct mlx5_ib_mr *sig_mr = to_mmr(wr->wr.sig_handover.sig_mr); 2253e6631814SSagi Grimberg u32 pdn = get_pd(qp)->pdn; 2254e6631814SSagi Grimberg u32 klm_oct_size; 2255e6631814SSagi Grimberg int region_len, ret; 2256e6631814SSagi Grimberg 2257e6631814SSagi Grimberg if (unlikely(wr->num_sge != 1) || 2258e6631814SSagi Grimberg unlikely(wr->wr.sig_handover.access_flags & 2259e6631814SSagi Grimberg IB_ACCESS_REMOTE_ATOMIC) || 2260d5436ba0SSagi Grimberg unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) || 2261d5436ba0SSagi Grimberg unlikely(!sig_mr->sig->sig_status_checked)) 2262e6631814SSagi Grimberg return -EINVAL; 2263e6631814SSagi Grimberg 2264e6631814SSagi Grimberg /* length of the protected region, data + protection */ 2265e6631814SSagi Grimberg region_len = wr->sg_list->length; 22668524867bSSagi Grimberg if (wr->wr.sig_handover.prot && 22678524867bSSagi Grimberg (wr->wr.sig_handover.prot->lkey != wr->sg_list->lkey || 22688524867bSSagi Grimberg wr->wr.sig_handover.prot->addr != wr->sg_list->addr || 22698524867bSSagi Grimberg wr->wr.sig_handover.prot->length != wr->sg_list->length)) 2270e6631814SSagi Grimberg region_len += wr->wr.sig_handover.prot->length; 2271e6631814SSagi Grimberg 2272e6631814SSagi Grimberg /** 2273e6631814SSagi Grimberg * KLM octoword size - if protection was provided 2274e6631814SSagi Grimberg * then we use strided block format (3 octowords), 2275e6631814SSagi Grimberg * else we use single KLM (1 octoword) 2276e6631814SSagi Grimberg **/ 2277e6631814SSagi Grimberg klm_oct_size = wr->wr.sig_handover.prot ? 3 : 1; 2278e6631814SSagi Grimberg 2279e6631814SSagi Grimberg set_sig_umr_segment(*seg, wr, klm_oct_size); 2280e6631814SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2281e6631814SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2282e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2283e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2284e6631814SSagi Grimberg 2285e6631814SSagi Grimberg set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn); 2286e6631814SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 2287e6631814SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 2288e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2289e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2290e6631814SSagi Grimberg 2291e6631814SSagi Grimberg ret = set_sig_data_segment(wr, qp, seg, size); 2292e6631814SSagi Grimberg if (ret) 2293e6631814SSagi Grimberg return ret; 2294e6631814SSagi Grimberg 2295d5436ba0SSagi Grimberg sig_mr->sig->sig_status_checked = false; 2296e6631814SSagi Grimberg return 0; 2297e6631814SSagi Grimberg } 2298e6631814SSagi Grimberg 2299e6631814SSagi Grimberg static int set_psv_wr(struct ib_sig_domain *domain, 2300e6631814SSagi Grimberg u32 psv_idx, void **seg, int *size) 2301e6631814SSagi Grimberg { 2302e6631814SSagi Grimberg struct mlx5_seg_set_psv *psv_seg = *seg; 2303e6631814SSagi Grimberg 2304e6631814SSagi Grimberg memset(psv_seg, 0, sizeof(*psv_seg)); 2305e6631814SSagi Grimberg psv_seg->psv_num = cpu_to_be32(psv_idx); 2306e6631814SSagi Grimberg switch (domain->sig_type) { 230778eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 230878eda2bbSSagi Grimberg break; 2309e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2310e6631814SSagi Grimberg psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 | 2311e6631814SSagi Grimberg domain->sig.dif.app_tag); 2312e6631814SSagi Grimberg psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag); 2313e6631814SSagi Grimberg break; 2314e6631814SSagi Grimberg default: 2315e6631814SSagi Grimberg pr_err("Bad signature type given.\n"); 2316e6631814SSagi Grimberg return 1; 2317e6631814SSagi Grimberg } 2318e6631814SSagi Grimberg 231978eda2bbSSagi Grimberg *seg += sizeof(*psv_seg); 232078eda2bbSSagi Grimberg *size += sizeof(*psv_seg) / 16; 232178eda2bbSSagi Grimberg 2322e6631814SSagi Grimberg return 0; 2323e6631814SSagi Grimberg } 2324e6631814SSagi Grimberg 2325e126ba97SEli Cohen static int set_frwr_li_wr(void **seg, struct ib_send_wr *wr, int *size, 2326e126ba97SEli Cohen struct mlx5_core_dev *mdev, struct mlx5_ib_pd *pd, struct mlx5_ib_qp *qp) 2327e126ba97SEli Cohen { 2328e126ba97SEli Cohen int writ = 0; 2329e126ba97SEli Cohen int li; 2330e126ba97SEli Cohen 2331e126ba97SEli Cohen li = wr->opcode == IB_WR_LOCAL_INV ? 1 : 0; 2332e126ba97SEli Cohen if (unlikely(wr->send_flags & IB_SEND_INLINE)) 2333e126ba97SEli Cohen return -EINVAL; 2334e126ba97SEli Cohen 2335e126ba97SEli Cohen set_frwr_umr_segment(*seg, wr, li); 2336e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2337e126ba97SEli Cohen *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2338e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2339e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2340e126ba97SEli Cohen set_mkey_segment(*seg, wr, li, &writ); 2341e126ba97SEli Cohen *seg += sizeof(struct mlx5_mkey_seg); 2342e126ba97SEli Cohen *size += sizeof(struct mlx5_mkey_seg) / 16; 2343e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2344e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2345e126ba97SEli Cohen if (!li) { 23469641b74eSEli Cohen if (unlikely(wr->wr.fast_reg.page_list_len > 23479641b74eSEli Cohen wr->wr.fast_reg.page_list->max_page_list_len)) 23489641b74eSEli Cohen return -ENOMEM; 23499641b74eSEli Cohen 2350e126ba97SEli Cohen set_frwr_pages(*seg, wr, mdev, pd, writ); 2351e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_data_seg); 2352e126ba97SEli Cohen *size += (sizeof(struct mlx5_wqe_data_seg) / 16); 2353e126ba97SEli Cohen } 2354e126ba97SEli Cohen return 0; 2355e126ba97SEli Cohen } 2356e126ba97SEli Cohen 2357e126ba97SEli Cohen static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16) 2358e126ba97SEli Cohen { 2359e126ba97SEli Cohen __be32 *p = NULL; 2360e126ba97SEli Cohen int tidx = idx; 2361e126ba97SEli Cohen int i, j; 2362e126ba97SEli Cohen 2363e126ba97SEli Cohen pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx)); 2364e126ba97SEli Cohen for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) { 2365e126ba97SEli Cohen if ((i & 0xf) == 0) { 2366e126ba97SEli Cohen void *buf = mlx5_get_send_wqe(qp, tidx); 2367e126ba97SEli Cohen tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1); 2368e126ba97SEli Cohen p = buf; 2369e126ba97SEli Cohen j = 0; 2370e126ba97SEli Cohen } 2371e126ba97SEli Cohen pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]), 2372e126ba97SEli Cohen be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]), 2373e126ba97SEli Cohen be32_to_cpu(p[j + 3])); 2374e126ba97SEli Cohen } 2375e126ba97SEli Cohen } 2376e126ba97SEli Cohen 2377e126ba97SEli Cohen static void mlx5_bf_copy(u64 __iomem *dst, u64 *src, 2378e126ba97SEli Cohen unsigned bytecnt, struct mlx5_ib_qp *qp) 2379e126ba97SEli Cohen { 2380e126ba97SEli Cohen while (bytecnt > 0) { 2381e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2382e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2383e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2384e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2385e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2386e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2387e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2388e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2389e126ba97SEli Cohen bytecnt -= 64; 2390e126ba97SEli Cohen if (unlikely(src == qp->sq.qend)) 2391e126ba97SEli Cohen src = mlx5_get_send_wqe(qp, 0); 2392e126ba97SEli Cohen } 2393e126ba97SEli Cohen } 2394e126ba97SEli Cohen 2395e126ba97SEli Cohen static u8 get_fence(u8 fence, struct ib_send_wr *wr) 2396e126ba97SEli Cohen { 2397e126ba97SEli Cohen if (unlikely(wr->opcode == IB_WR_LOCAL_INV && 2398e126ba97SEli Cohen wr->send_flags & IB_SEND_FENCE)) 2399e126ba97SEli Cohen return MLX5_FENCE_MODE_STRONG_ORDERING; 2400e126ba97SEli Cohen 2401e126ba97SEli Cohen if (unlikely(fence)) { 2402e126ba97SEli Cohen if (wr->send_flags & IB_SEND_FENCE) 2403e126ba97SEli Cohen return MLX5_FENCE_MODE_SMALL_AND_FENCE; 2404e126ba97SEli Cohen else 2405e126ba97SEli Cohen return fence; 2406e126ba97SEli Cohen 2407e126ba97SEli Cohen } else { 2408e126ba97SEli Cohen return 0; 2409e126ba97SEli Cohen } 2410e126ba97SEli Cohen } 2411e126ba97SEli Cohen 24126e5eadacSSagi Grimberg static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, 24136e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg **ctrl, 24146e5eadacSSagi Grimberg struct ib_send_wr *wr, int *idx, 24156e5eadacSSagi Grimberg int *size, int nreq) 24166e5eadacSSagi Grimberg { 24176e5eadacSSagi Grimberg int err = 0; 24186e5eadacSSagi Grimberg 24196e5eadacSSagi Grimberg if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { 24206e5eadacSSagi Grimberg err = -ENOMEM; 24216e5eadacSSagi Grimberg return err; 24226e5eadacSSagi Grimberg } 24236e5eadacSSagi Grimberg 24246e5eadacSSagi Grimberg *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); 24256e5eadacSSagi Grimberg *seg = mlx5_get_send_wqe(qp, *idx); 24266e5eadacSSagi Grimberg *ctrl = *seg; 24276e5eadacSSagi Grimberg *(uint32_t *)(*seg + 8) = 0; 24286e5eadacSSagi Grimberg (*ctrl)->imm = send_ieth(wr); 24296e5eadacSSagi Grimberg (*ctrl)->fm_ce_se = qp->sq_signal_bits | 24306e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SIGNALED ? 24316e5eadacSSagi Grimberg MLX5_WQE_CTRL_CQ_UPDATE : 0) | 24326e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SOLICITED ? 24336e5eadacSSagi Grimberg MLX5_WQE_CTRL_SOLICITED : 0); 24346e5eadacSSagi Grimberg 24356e5eadacSSagi Grimberg *seg += sizeof(**ctrl); 24366e5eadacSSagi Grimberg *size = sizeof(**ctrl) / 16; 24376e5eadacSSagi Grimberg 24386e5eadacSSagi Grimberg return err; 24396e5eadacSSagi Grimberg } 24406e5eadacSSagi Grimberg 24416e5eadacSSagi Grimberg static void finish_wqe(struct mlx5_ib_qp *qp, 24426e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg *ctrl, 24436e5eadacSSagi Grimberg u8 size, unsigned idx, u64 wr_id, 24446e5eadacSSagi Grimberg int nreq, u8 fence, u8 next_fence, 24456e5eadacSSagi Grimberg u32 mlx5_opcode) 24466e5eadacSSagi Grimberg { 24476e5eadacSSagi Grimberg u8 opmod = 0; 24486e5eadacSSagi Grimberg 24496e5eadacSSagi Grimberg ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) | 24506e5eadacSSagi Grimberg mlx5_opcode | ((u32)opmod << 24)); 24516e5eadacSSagi Grimberg ctrl->qpn_ds = cpu_to_be32(size | (qp->mqp.qpn << 8)); 24526e5eadacSSagi Grimberg ctrl->fm_ce_se |= fence; 24536e5eadacSSagi Grimberg qp->fm_cache = next_fence; 24546e5eadacSSagi Grimberg if (unlikely(qp->wq_sig)) 24556e5eadacSSagi Grimberg ctrl->signature = wq_sig(ctrl); 24566e5eadacSSagi Grimberg 24576e5eadacSSagi Grimberg qp->sq.wrid[idx] = wr_id; 24586e5eadacSSagi Grimberg qp->sq.w_list[idx].opcode = mlx5_opcode; 24596e5eadacSSagi Grimberg qp->sq.wqe_head[idx] = qp->sq.head + nreq; 24606e5eadacSSagi Grimberg qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB); 24616e5eadacSSagi Grimberg qp->sq.w_list[idx].next = qp->sq.cur_post; 24626e5eadacSSagi Grimberg } 24636e5eadacSSagi Grimberg 24646e5eadacSSagi Grimberg 2465e126ba97SEli Cohen int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 2466e126ba97SEli Cohen struct ib_send_wr **bad_wr) 2467e126ba97SEli Cohen { 2468e126ba97SEli Cohen struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */ 2469e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 24709603b61dSJack Morgenstein struct mlx5_core_dev *mdev = dev->mdev; 2471e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2472e6631814SSagi Grimberg struct mlx5_ib_mr *mr; 2473e126ba97SEli Cohen struct mlx5_wqe_data_seg *dpseg; 2474e126ba97SEli Cohen struct mlx5_wqe_xrc_seg *xrc; 2475e126ba97SEli Cohen struct mlx5_bf *bf = qp->bf; 2476e126ba97SEli Cohen int uninitialized_var(size); 2477e126ba97SEli Cohen void *qend = qp->sq.qend; 2478e126ba97SEli Cohen unsigned long flags; 2479e126ba97SEli Cohen unsigned idx; 2480e126ba97SEli Cohen int err = 0; 2481e126ba97SEli Cohen int inl = 0; 2482e126ba97SEli Cohen int num_sge; 2483e126ba97SEli Cohen void *seg; 2484e126ba97SEli Cohen int nreq; 2485e126ba97SEli Cohen int i; 2486e126ba97SEli Cohen u8 next_fence = 0; 2487e126ba97SEli Cohen u8 fence; 2488e126ba97SEli Cohen 2489e126ba97SEli Cohen spin_lock_irqsave(&qp->sq.lock, flags); 2490e126ba97SEli Cohen 2491e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2492a8f731ebSFabian Frederick if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) { 2493e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2494e126ba97SEli Cohen err = -EINVAL; 2495e126ba97SEli Cohen *bad_wr = wr; 2496e126ba97SEli Cohen goto out; 2497e126ba97SEli Cohen } 2498e126ba97SEli Cohen 2499e126ba97SEli Cohen fence = qp->fm_cache; 2500e126ba97SEli Cohen num_sge = wr->num_sge; 2501e126ba97SEli Cohen if (unlikely(num_sge > qp->sq.max_gs)) { 2502e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2503e126ba97SEli Cohen err = -ENOMEM; 2504e126ba97SEli Cohen *bad_wr = wr; 2505e126ba97SEli Cohen goto out; 2506e126ba97SEli Cohen } 2507e126ba97SEli Cohen 25086e5eadacSSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq); 25096e5eadacSSagi Grimberg if (err) { 25106e5eadacSSagi Grimberg mlx5_ib_warn(dev, "\n"); 25116e5eadacSSagi Grimberg err = -ENOMEM; 25126e5eadacSSagi Grimberg *bad_wr = wr; 25136e5eadacSSagi Grimberg goto out; 25146e5eadacSSagi Grimberg } 2515e126ba97SEli Cohen 2516e126ba97SEli Cohen switch (ibqp->qp_type) { 2517e126ba97SEli Cohen case IB_QPT_XRC_INI: 2518e126ba97SEli Cohen xrc = seg; 2519e126ba97SEli Cohen xrc->xrc_srqn = htonl(wr->xrc_remote_srq_num); 2520e126ba97SEli Cohen seg += sizeof(*xrc); 2521e126ba97SEli Cohen size += sizeof(*xrc) / 16; 2522e126ba97SEli Cohen /* fall through */ 2523e126ba97SEli Cohen case IB_QPT_RC: 2524e126ba97SEli Cohen switch (wr->opcode) { 2525e126ba97SEli Cohen case IB_WR_RDMA_READ: 2526e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2527e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2528e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2529e126ba97SEli Cohen wr->wr.rdma.rkey); 2530e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2531e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2532e126ba97SEli Cohen break; 2533e126ba97SEli Cohen 2534e126ba97SEli Cohen case IB_WR_ATOMIC_CMP_AND_SWP: 2535e126ba97SEli Cohen case IB_WR_ATOMIC_FETCH_AND_ADD: 2536e126ba97SEli Cohen case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: 253781bea28fSEli Cohen mlx5_ib_warn(dev, "Atomic operations are not supported yet\n"); 253881bea28fSEli Cohen err = -ENOSYS; 253981bea28fSEli Cohen *bad_wr = wr; 254081bea28fSEli Cohen goto out; 2541e126ba97SEli Cohen 2542e126ba97SEli Cohen case IB_WR_LOCAL_INV: 2543e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2544e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_LOCAL_INV; 2545e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey); 2546e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2547e126ba97SEli Cohen if (err) { 2548e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2549e126ba97SEli Cohen *bad_wr = wr; 2550e126ba97SEli Cohen goto out; 2551e126ba97SEli Cohen } 2552e126ba97SEli Cohen num_sge = 0; 2553e126ba97SEli Cohen break; 2554e126ba97SEli Cohen 2555e126ba97SEli Cohen case IB_WR_FAST_REG_MR: 2556e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2557e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_FAST_REG_MR; 2558e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2559e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2560e126ba97SEli Cohen if (err) { 2561e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2562e126ba97SEli Cohen *bad_wr = wr; 2563e126ba97SEli Cohen goto out; 2564e126ba97SEli Cohen } 2565e126ba97SEli Cohen num_sge = 0; 2566e126ba97SEli Cohen break; 2567e126ba97SEli Cohen 2568e6631814SSagi Grimberg case IB_WR_REG_SIG_MR: 2569e6631814SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR; 2570e6631814SSagi Grimberg mr = to_mmr(wr->wr.sig_handover.sig_mr); 2571e6631814SSagi Grimberg 2572e6631814SSagi Grimberg ctrl->imm = cpu_to_be32(mr->ibmr.rkey); 2573e6631814SSagi Grimberg err = set_sig_umr_wr(wr, qp, &seg, &size); 2574e6631814SSagi Grimberg if (err) { 2575e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2576e6631814SSagi Grimberg *bad_wr = wr; 2577e6631814SSagi Grimberg goto out; 2578e6631814SSagi Grimberg } 2579e6631814SSagi Grimberg 2580e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2581e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2582e6631814SSagi Grimberg next_fence, MLX5_OPCODE_UMR); 2583e6631814SSagi Grimberg /* 2584e6631814SSagi Grimberg * SET_PSV WQEs are not signaled and solicited 2585e6631814SSagi Grimberg * on error 2586e6631814SSagi Grimberg */ 2587e6631814SSagi Grimberg wr->send_flags &= ~IB_SEND_SIGNALED; 2588e6631814SSagi Grimberg wr->send_flags |= IB_SEND_SOLICITED; 2589e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2590e6631814SSagi Grimberg &idx, &size, nreq); 2591e6631814SSagi Grimberg if (err) { 2592e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2593e6631814SSagi Grimberg err = -ENOMEM; 2594e6631814SSagi Grimberg *bad_wr = wr; 2595e6631814SSagi Grimberg goto out; 2596e6631814SSagi Grimberg } 2597e6631814SSagi Grimberg 2598e6631814SSagi Grimberg err = set_psv_wr(&wr->wr.sig_handover.sig_attrs->mem, 2599e6631814SSagi Grimberg mr->sig->psv_memory.psv_idx, &seg, 2600e6631814SSagi Grimberg &size); 2601e6631814SSagi Grimberg if (err) { 2602e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2603e6631814SSagi Grimberg *bad_wr = wr; 2604e6631814SSagi Grimberg goto out; 2605e6631814SSagi Grimberg } 2606e6631814SSagi Grimberg 2607e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2608e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2609e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2610e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2611e6631814SSagi Grimberg &idx, &size, nreq); 2612e6631814SSagi Grimberg if (err) { 2613e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2614e6631814SSagi Grimberg err = -ENOMEM; 2615e6631814SSagi Grimberg *bad_wr = wr; 2616e6631814SSagi Grimberg goto out; 2617e6631814SSagi Grimberg } 2618e6631814SSagi Grimberg 2619e6631814SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2620e6631814SSagi Grimberg err = set_psv_wr(&wr->wr.sig_handover.sig_attrs->wire, 2621e6631814SSagi Grimberg mr->sig->psv_wire.psv_idx, &seg, 2622e6631814SSagi Grimberg &size); 2623e6631814SSagi Grimberg if (err) { 2624e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2625e6631814SSagi Grimberg *bad_wr = wr; 2626e6631814SSagi Grimberg goto out; 2627e6631814SSagi Grimberg } 2628e6631814SSagi Grimberg 2629e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2630e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2631e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2632e6631814SSagi Grimberg num_sge = 0; 2633e6631814SSagi Grimberg goto skip_psv; 2634e6631814SSagi Grimberg 2635e126ba97SEli Cohen default: 2636e126ba97SEli Cohen break; 2637e126ba97SEli Cohen } 2638e126ba97SEli Cohen break; 2639e126ba97SEli Cohen 2640e126ba97SEli Cohen case IB_QPT_UC: 2641e126ba97SEli Cohen switch (wr->opcode) { 2642e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2643e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2644e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2645e126ba97SEli Cohen wr->wr.rdma.rkey); 2646e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2647e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2648e126ba97SEli Cohen break; 2649e126ba97SEli Cohen 2650e126ba97SEli Cohen default: 2651e126ba97SEli Cohen break; 2652e126ba97SEli Cohen } 2653e126ba97SEli Cohen break; 2654e126ba97SEli Cohen 2655e126ba97SEli Cohen case IB_QPT_UD: 2656e126ba97SEli Cohen case IB_QPT_SMI: 2657e126ba97SEli Cohen case IB_QPT_GSI: 2658e126ba97SEli Cohen set_datagram_seg(seg, wr); 2659e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_datagram_seg); 2660e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_datagram_seg) / 16; 2661e126ba97SEli Cohen if (unlikely((seg == qend))) 2662e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2663e126ba97SEli Cohen break; 2664e126ba97SEli Cohen 2665e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 2666e126ba97SEli Cohen if (wr->opcode != MLX5_IB_WR_UMR) { 2667e126ba97SEli Cohen err = -EINVAL; 2668e126ba97SEli Cohen mlx5_ib_warn(dev, "bad opcode\n"); 2669e126ba97SEli Cohen goto out; 2670e126ba97SEli Cohen } 2671e126ba97SEli Cohen qp->sq.wr_data[idx] = MLX5_IB_WR_UMR; 2672e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2673e126ba97SEli Cohen set_reg_umr_segment(seg, wr); 2674e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2675e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2676e126ba97SEli Cohen if (unlikely((seg == qend))) 2677e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2678e126ba97SEli Cohen set_reg_mkey_segment(seg, wr); 2679e126ba97SEli Cohen seg += sizeof(struct mlx5_mkey_seg); 2680e126ba97SEli Cohen size += sizeof(struct mlx5_mkey_seg) / 16; 2681e126ba97SEli Cohen if (unlikely((seg == qend))) 2682e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2683e126ba97SEli Cohen break; 2684e126ba97SEli Cohen 2685e126ba97SEli Cohen default: 2686e126ba97SEli Cohen break; 2687e126ba97SEli Cohen } 2688e126ba97SEli Cohen 2689e126ba97SEli Cohen if (wr->send_flags & IB_SEND_INLINE && num_sge) { 2690e126ba97SEli Cohen int uninitialized_var(sz); 2691e126ba97SEli Cohen 2692e126ba97SEli Cohen err = set_data_inl_seg(qp, wr, seg, &sz); 2693e126ba97SEli Cohen if (unlikely(err)) { 2694e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2695e126ba97SEli Cohen *bad_wr = wr; 2696e126ba97SEli Cohen goto out; 2697e126ba97SEli Cohen } 2698e126ba97SEli Cohen inl = 1; 2699e126ba97SEli Cohen size += sz; 2700e126ba97SEli Cohen } else { 2701e126ba97SEli Cohen dpseg = seg; 2702e126ba97SEli Cohen for (i = 0; i < num_sge; i++) { 2703e126ba97SEli Cohen if (unlikely(dpseg == qend)) { 2704e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2705e126ba97SEli Cohen dpseg = seg; 2706e126ba97SEli Cohen } 2707e126ba97SEli Cohen if (likely(wr->sg_list[i].length)) { 2708e126ba97SEli Cohen set_data_ptr_seg(dpseg, wr->sg_list + i); 2709e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_data_seg) / 16; 2710e126ba97SEli Cohen dpseg++; 2711e126ba97SEli Cohen } 2712e126ba97SEli Cohen } 2713e126ba97SEli Cohen } 2714e126ba97SEli Cohen 27156e5eadacSSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq, 27166e5eadacSSagi Grimberg get_fence(fence, wr), next_fence, 27176e5eadacSSagi Grimberg mlx5_ib_opcode[wr->opcode]); 2718e6631814SSagi Grimberg skip_psv: 2719e126ba97SEli Cohen if (0) 2720e126ba97SEli Cohen dump_wqe(qp, idx, size); 2721e126ba97SEli Cohen } 2722e126ba97SEli Cohen 2723e126ba97SEli Cohen out: 2724e126ba97SEli Cohen if (likely(nreq)) { 2725e126ba97SEli Cohen qp->sq.head += nreq; 2726e126ba97SEli Cohen 2727e126ba97SEli Cohen /* Make sure that descriptors are written before 2728e126ba97SEli Cohen * updating doorbell record and ringing the doorbell 2729e126ba97SEli Cohen */ 2730e126ba97SEli Cohen wmb(); 2731e126ba97SEli Cohen 2732e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post); 2733e126ba97SEli Cohen 2734ada388f7SEli Cohen /* Make sure doorbell record is visible to the HCA before 2735ada388f7SEli Cohen * we hit doorbell */ 2736ada388f7SEli Cohen wmb(); 2737ada388f7SEli Cohen 2738e126ba97SEli Cohen if (bf->need_lock) 2739e126ba97SEli Cohen spin_lock(&bf->lock); 2740e126ba97SEli Cohen 2741e126ba97SEli Cohen /* TBD enable WC */ 2742e126ba97SEli Cohen if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) { 2743e126ba97SEli Cohen mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp); 2744e126ba97SEli Cohen /* wc_wmb(); */ 2745e126ba97SEli Cohen } else { 2746e126ba97SEli Cohen mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset, 2747e126ba97SEli Cohen MLX5_GET_DOORBELL_LOCK(&bf->lock32)); 2748e126ba97SEli Cohen /* Make sure doorbells don't leak out of SQ spinlock 2749e126ba97SEli Cohen * and reach the HCA out of order. 2750e126ba97SEli Cohen */ 2751e126ba97SEli Cohen mmiowb(); 2752e126ba97SEli Cohen } 2753e126ba97SEli Cohen bf->offset ^= bf->buf_size; 2754e126ba97SEli Cohen if (bf->need_lock) 2755e126ba97SEli Cohen spin_unlock(&bf->lock); 2756e126ba97SEli Cohen } 2757e126ba97SEli Cohen 2758e126ba97SEli Cohen spin_unlock_irqrestore(&qp->sq.lock, flags); 2759e126ba97SEli Cohen 2760e126ba97SEli Cohen return err; 2761e126ba97SEli Cohen } 2762e126ba97SEli Cohen 2763e126ba97SEli Cohen static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size) 2764e126ba97SEli Cohen { 2765e126ba97SEli Cohen sig->signature = calc_sig(sig, size); 2766e126ba97SEli Cohen } 2767e126ba97SEli Cohen 2768e126ba97SEli Cohen int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 2769e126ba97SEli Cohen struct ib_recv_wr **bad_wr) 2770e126ba97SEli Cohen { 2771e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2772e126ba97SEli Cohen struct mlx5_wqe_data_seg *scat; 2773e126ba97SEli Cohen struct mlx5_rwqe_sig *sig; 2774e126ba97SEli Cohen unsigned long flags; 2775e126ba97SEli Cohen int err = 0; 2776e126ba97SEli Cohen int nreq; 2777e126ba97SEli Cohen int ind; 2778e126ba97SEli Cohen int i; 2779e126ba97SEli Cohen 2780e126ba97SEli Cohen spin_lock_irqsave(&qp->rq.lock, flags); 2781e126ba97SEli Cohen 2782e126ba97SEli Cohen ind = qp->rq.head & (qp->rq.wqe_cnt - 1); 2783e126ba97SEli Cohen 2784e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2785e126ba97SEli Cohen if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) { 2786e126ba97SEli Cohen err = -ENOMEM; 2787e126ba97SEli Cohen *bad_wr = wr; 2788e126ba97SEli Cohen goto out; 2789e126ba97SEli Cohen } 2790e126ba97SEli Cohen 2791e126ba97SEli Cohen if (unlikely(wr->num_sge > qp->rq.max_gs)) { 2792e126ba97SEli Cohen err = -EINVAL; 2793e126ba97SEli Cohen *bad_wr = wr; 2794e126ba97SEli Cohen goto out; 2795e126ba97SEli Cohen } 2796e126ba97SEli Cohen 2797e126ba97SEli Cohen scat = get_recv_wqe(qp, ind); 2798e126ba97SEli Cohen if (qp->wq_sig) 2799e126ba97SEli Cohen scat++; 2800e126ba97SEli Cohen 2801e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) 2802e126ba97SEli Cohen set_data_ptr_seg(scat + i, wr->sg_list + i); 2803e126ba97SEli Cohen 2804e126ba97SEli Cohen if (i < qp->rq.max_gs) { 2805e126ba97SEli Cohen scat[i].byte_count = 0; 2806e126ba97SEli Cohen scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY); 2807e126ba97SEli Cohen scat[i].addr = 0; 2808e126ba97SEli Cohen } 2809e126ba97SEli Cohen 2810e126ba97SEli Cohen if (qp->wq_sig) { 2811e126ba97SEli Cohen sig = (struct mlx5_rwqe_sig *)scat; 2812e126ba97SEli Cohen set_sig_seg(sig, (qp->rq.max_gs + 1) << 2); 2813e126ba97SEli Cohen } 2814e126ba97SEli Cohen 2815e126ba97SEli Cohen qp->rq.wrid[ind] = wr->wr_id; 2816e126ba97SEli Cohen 2817e126ba97SEli Cohen ind = (ind + 1) & (qp->rq.wqe_cnt - 1); 2818e126ba97SEli Cohen } 2819e126ba97SEli Cohen 2820e126ba97SEli Cohen out: 2821e126ba97SEli Cohen if (likely(nreq)) { 2822e126ba97SEli Cohen qp->rq.head += nreq; 2823e126ba97SEli Cohen 2824e126ba97SEli Cohen /* Make sure that descriptors are written before 2825e126ba97SEli Cohen * doorbell record. 2826e126ba97SEli Cohen */ 2827e126ba97SEli Cohen wmb(); 2828e126ba97SEli Cohen 2829e126ba97SEli Cohen *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff); 2830e126ba97SEli Cohen } 2831e126ba97SEli Cohen 2832e126ba97SEli Cohen spin_unlock_irqrestore(&qp->rq.lock, flags); 2833e126ba97SEli Cohen 2834e126ba97SEli Cohen return err; 2835e126ba97SEli Cohen } 2836e126ba97SEli Cohen 2837e126ba97SEli Cohen static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state) 2838e126ba97SEli Cohen { 2839e126ba97SEli Cohen switch (mlx5_state) { 2840e126ba97SEli Cohen case MLX5_QP_STATE_RST: return IB_QPS_RESET; 2841e126ba97SEli Cohen case MLX5_QP_STATE_INIT: return IB_QPS_INIT; 2842e126ba97SEli Cohen case MLX5_QP_STATE_RTR: return IB_QPS_RTR; 2843e126ba97SEli Cohen case MLX5_QP_STATE_RTS: return IB_QPS_RTS; 2844e126ba97SEli Cohen case MLX5_QP_STATE_SQ_DRAINING: 2845e126ba97SEli Cohen case MLX5_QP_STATE_SQD: return IB_QPS_SQD; 2846e126ba97SEli Cohen case MLX5_QP_STATE_SQER: return IB_QPS_SQE; 2847e126ba97SEli Cohen case MLX5_QP_STATE_ERR: return IB_QPS_ERR; 2848e126ba97SEli Cohen default: return -1; 2849e126ba97SEli Cohen } 2850e126ba97SEli Cohen } 2851e126ba97SEli Cohen 2852e126ba97SEli Cohen static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state) 2853e126ba97SEli Cohen { 2854e126ba97SEli Cohen switch (mlx5_mig_state) { 2855e126ba97SEli Cohen case MLX5_QP_PM_ARMED: return IB_MIG_ARMED; 2856e126ba97SEli Cohen case MLX5_QP_PM_REARM: return IB_MIG_REARM; 2857e126ba97SEli Cohen case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED; 2858e126ba97SEli Cohen default: return -1; 2859e126ba97SEli Cohen } 2860e126ba97SEli Cohen } 2861e126ba97SEli Cohen 2862e126ba97SEli Cohen static int to_ib_qp_access_flags(int mlx5_flags) 2863e126ba97SEli Cohen { 2864e126ba97SEli Cohen int ib_flags = 0; 2865e126ba97SEli Cohen 2866e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RRE) 2867e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_READ; 2868e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RWE) 2869e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_WRITE; 2870e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RAE) 2871e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_ATOMIC; 2872e126ba97SEli Cohen 2873e126ba97SEli Cohen return ib_flags; 2874e126ba97SEli Cohen } 2875e126ba97SEli Cohen 2876e126ba97SEli Cohen static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr, 2877e126ba97SEli Cohen struct mlx5_qp_path *path) 2878e126ba97SEli Cohen { 28799603b61dSJack Morgenstein struct mlx5_core_dev *dev = ibdev->mdev; 2880e126ba97SEli Cohen 2881e126ba97SEli Cohen memset(ib_ah_attr, 0, sizeof(*ib_ah_attr)); 2882e126ba97SEli Cohen ib_ah_attr->port_num = path->port; 2883e126ba97SEli Cohen 2884c7a08ac7SEli Cohen if (ib_ah_attr->port_num == 0 || 2885c7a08ac7SEli Cohen ib_ah_attr->port_num > dev->caps.gen.num_ports) 2886e126ba97SEli Cohen return; 2887e126ba97SEli Cohen 2888e126ba97SEli Cohen ib_ah_attr->sl = path->sl & 0xf; 2889e126ba97SEli Cohen 2890e126ba97SEli Cohen ib_ah_attr->dlid = be16_to_cpu(path->rlid); 2891e126ba97SEli Cohen ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f; 2892e126ba97SEli Cohen ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0; 2893e126ba97SEli Cohen ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0; 2894e126ba97SEli Cohen if (ib_ah_attr->ah_flags) { 2895e126ba97SEli Cohen ib_ah_attr->grh.sgid_index = path->mgid_index; 2896e126ba97SEli Cohen ib_ah_attr->grh.hop_limit = path->hop_limit; 2897e126ba97SEli Cohen ib_ah_attr->grh.traffic_class = 2898e126ba97SEli Cohen (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; 2899e126ba97SEli Cohen ib_ah_attr->grh.flow_label = 2900e126ba97SEli Cohen be32_to_cpu(path->tclass_flowlabel) & 0xfffff; 2901e126ba97SEli Cohen memcpy(ib_ah_attr->grh.dgid.raw, 2902e126ba97SEli Cohen path->rgid, sizeof(ib_ah_attr->grh.dgid.raw)); 2903e126ba97SEli Cohen } 2904e126ba97SEli Cohen } 2905e126ba97SEli Cohen 2906e126ba97SEli Cohen int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 2907e126ba97SEli Cohen struct ib_qp_init_attr *qp_init_attr) 2908e126ba97SEli Cohen { 2909e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 2910e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2911e126ba97SEli Cohen struct mlx5_query_qp_mbox_out *outb; 2912e126ba97SEli Cohen struct mlx5_qp_context *context; 2913e126ba97SEli Cohen int mlx5_state; 2914e126ba97SEli Cohen int err = 0; 2915e126ba97SEli Cohen 2916e126ba97SEli Cohen mutex_lock(&qp->mutex); 2917e126ba97SEli Cohen outb = kzalloc(sizeof(*outb), GFP_KERNEL); 2918e126ba97SEli Cohen if (!outb) { 2919e126ba97SEli Cohen err = -ENOMEM; 2920e126ba97SEli Cohen goto out; 2921e126ba97SEli Cohen } 2922e126ba97SEli Cohen context = &outb->ctx; 29239603b61dSJack Morgenstein err = mlx5_core_qp_query(dev->mdev, &qp->mqp, outb, sizeof(*outb)); 2924e126ba97SEli Cohen if (err) 2925e126ba97SEli Cohen goto out_free; 2926e126ba97SEli Cohen 2927e126ba97SEli Cohen mlx5_state = be32_to_cpu(context->flags) >> 28; 2928e126ba97SEli Cohen 2929e126ba97SEli Cohen qp->state = to_ib_qp_state(mlx5_state); 2930e126ba97SEli Cohen qp_attr->qp_state = qp->state; 2931e126ba97SEli Cohen qp_attr->path_mtu = context->mtu_msgmax >> 5; 2932e126ba97SEli Cohen qp_attr->path_mig_state = 2933e126ba97SEli Cohen to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3); 2934e126ba97SEli Cohen qp_attr->qkey = be32_to_cpu(context->qkey); 2935e126ba97SEli Cohen qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff; 2936e126ba97SEli Cohen qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff; 2937e126ba97SEli Cohen qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff; 2938e126ba97SEli Cohen qp_attr->qp_access_flags = 2939e126ba97SEli Cohen to_ib_qp_access_flags(be32_to_cpu(context->params2)); 2940e126ba97SEli Cohen 2941e126ba97SEli Cohen if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) { 2942e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); 2943e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); 2944e126ba97SEli Cohen qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f; 2945e126ba97SEli Cohen qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; 2946e126ba97SEli Cohen } 2947e126ba97SEli Cohen 2948e126ba97SEli Cohen qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f; 2949e126ba97SEli Cohen qp_attr->port_num = context->pri_path.port; 2950e126ba97SEli Cohen 2951e126ba97SEli Cohen /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ 2952e126ba97SEli Cohen qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING; 2953e126ba97SEli Cohen 2954e126ba97SEli Cohen qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7); 2955e126ba97SEli Cohen 2956e126ba97SEli Cohen qp_attr->max_dest_rd_atomic = 2957e126ba97SEli Cohen 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); 2958e126ba97SEli Cohen qp_attr->min_rnr_timer = 2959e126ba97SEli Cohen (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; 2960e126ba97SEli Cohen qp_attr->timeout = context->pri_path.ackto_lt >> 3; 2961e126ba97SEli Cohen qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; 2962e126ba97SEli Cohen qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7; 2963e126ba97SEli Cohen qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3; 2964e126ba97SEli Cohen qp_attr->cur_qp_state = qp_attr->qp_state; 2965e126ba97SEli Cohen qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; 2966e126ba97SEli Cohen qp_attr->cap.max_recv_sge = qp->rq.max_gs; 2967e126ba97SEli Cohen 2968e126ba97SEli Cohen if (!ibqp->uobject) { 2969e126ba97SEli Cohen qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; 2970e126ba97SEli Cohen qp_attr->cap.max_send_sge = qp->sq.max_gs; 2971e126ba97SEli Cohen } else { 2972e126ba97SEli Cohen qp_attr->cap.max_send_wr = 0; 2973e126ba97SEli Cohen qp_attr->cap.max_send_sge = 0; 2974e126ba97SEli Cohen } 2975e126ba97SEli Cohen 2976e126ba97SEli Cohen /* We don't support inline sends for kernel QPs (yet), and we 2977e126ba97SEli Cohen * don't know what userspace's value should be. 2978e126ba97SEli Cohen */ 2979e126ba97SEli Cohen qp_attr->cap.max_inline_data = 0; 2980e126ba97SEli Cohen 2981e126ba97SEli Cohen qp_init_attr->cap = qp_attr->cap; 2982e126ba97SEli Cohen 2983e126ba97SEli Cohen qp_init_attr->create_flags = 0; 2984e126ba97SEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 2985e126ba97SEli Cohen qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; 2986e126ba97SEli Cohen 2987e126ba97SEli Cohen qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ? 2988e126ba97SEli Cohen IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR; 2989e126ba97SEli Cohen 2990e126ba97SEli Cohen out_free: 2991e126ba97SEli Cohen kfree(outb); 2992e126ba97SEli Cohen 2993e126ba97SEli Cohen out: 2994e126ba97SEli Cohen mutex_unlock(&qp->mutex); 2995e126ba97SEli Cohen return err; 2996e126ba97SEli Cohen } 2997e126ba97SEli Cohen 2998e126ba97SEli Cohen struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 2999e126ba97SEli Cohen struct ib_ucontext *context, 3000e126ba97SEli Cohen struct ib_udata *udata) 3001e126ba97SEli Cohen { 3002e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibdev); 3003c7a08ac7SEli Cohen struct mlx5_general_caps *gen; 3004e126ba97SEli Cohen struct mlx5_ib_xrcd *xrcd; 3005e126ba97SEli Cohen int err; 3006e126ba97SEli Cohen 3007c7a08ac7SEli Cohen gen = &dev->mdev->caps.gen; 3008c7a08ac7SEli Cohen if (!(gen->flags & MLX5_DEV_CAP_FLAG_XRC)) 3009e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 3010e126ba97SEli Cohen 3011e126ba97SEli Cohen xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL); 3012e126ba97SEli Cohen if (!xrcd) 3013e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3014e126ba97SEli Cohen 30159603b61dSJack Morgenstein err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn); 3016e126ba97SEli Cohen if (err) { 3017e126ba97SEli Cohen kfree(xrcd); 3018e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3019e126ba97SEli Cohen } 3020e126ba97SEli Cohen 3021e126ba97SEli Cohen return &xrcd->ibxrcd; 3022e126ba97SEli Cohen } 3023e126ba97SEli Cohen 3024e126ba97SEli Cohen int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 3025e126ba97SEli Cohen { 3026e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(xrcd->device); 3027e126ba97SEli Cohen u32 xrcdn = to_mxrcd(xrcd)->xrcdn; 3028e126ba97SEli Cohen int err; 3029e126ba97SEli Cohen 30309603b61dSJack Morgenstein err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn); 3031e126ba97SEli Cohen if (err) { 3032e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn); 3033e126ba97SEli Cohen return err; 3034e126ba97SEli Cohen } 3035e126ba97SEli Cohen 3036e126ba97SEli Cohen kfree(xrcd); 3037e126ba97SEli Cohen 3038e126ba97SEli Cohen return 0; 3039e126ba97SEli Cohen } 3040