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 { 161e126ba97SEli Cohen int wqe_size; 162e126ba97SEli Cohen int wq_size; 163e126ba97SEli Cohen 164e126ba97SEli Cohen /* Sanity check RQ size before proceeding */ 1659603b61dSJack Morgenstein if (cap->max_recv_wr > dev->mdev->caps.max_wqes) 166e126ba97SEli Cohen return -EINVAL; 167e126ba97SEli Cohen 168e126ba97SEli Cohen if (!has_rq) { 169e126ba97SEli Cohen qp->rq.max_gs = 0; 170e126ba97SEli Cohen qp->rq.wqe_cnt = 0; 171e126ba97SEli Cohen qp->rq.wqe_shift = 0; 172e126ba97SEli Cohen } else { 173e126ba97SEli Cohen if (ucmd) { 174e126ba97SEli Cohen qp->rq.wqe_cnt = ucmd->rq_wqe_count; 175e126ba97SEli Cohen qp->rq.wqe_shift = ucmd->rq_wqe_shift; 176e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 177e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 178e126ba97SEli Cohen } else { 179e126ba97SEli Cohen wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0; 180e126ba97SEli Cohen wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg); 181e126ba97SEli Cohen wqe_size = roundup_pow_of_two(wqe_size); 182e126ba97SEli Cohen wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size; 183e126ba97SEli Cohen wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB); 184e126ba97SEli Cohen qp->rq.wqe_cnt = wq_size / wqe_size; 1859603b61dSJack Morgenstein if (wqe_size > dev->mdev->caps.max_rq_desc_sz) { 186e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d, max %d\n", 187e126ba97SEli Cohen wqe_size, 1889603b61dSJack Morgenstein dev->mdev->caps.max_rq_desc_sz); 189e126ba97SEli Cohen return -EINVAL; 190e126ba97SEli Cohen } 191e126ba97SEli Cohen qp->rq.wqe_shift = ilog2(wqe_size); 192e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 193e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 194e126ba97SEli Cohen } 195e126ba97SEli Cohen } 196e126ba97SEli Cohen 197e126ba97SEli Cohen return 0; 198e126ba97SEli Cohen } 199e126ba97SEli Cohen 200e126ba97SEli Cohen static int sq_overhead(enum ib_qp_type qp_type) 201e126ba97SEli Cohen { 202618af384SAndi Shyti int size = 0; 203e126ba97SEli Cohen 204e126ba97SEli Cohen switch (qp_type) { 205e126ba97SEli Cohen case IB_QPT_XRC_INI: 206b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_xrc_seg); 207e126ba97SEli Cohen /* fall through */ 208e126ba97SEli Cohen case IB_QPT_RC: 209e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 210e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg) + 211e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 212e126ba97SEli Cohen break; 213e126ba97SEli Cohen 214b125a54bSEli Cohen case IB_QPT_XRC_TGT: 215b125a54bSEli Cohen return 0; 216b125a54bSEli Cohen 217e126ba97SEli Cohen case IB_QPT_UC: 218b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 2199e65dc37SEli Cohen sizeof(struct mlx5_wqe_raddr_seg) + 2209e65dc37SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 2219e65dc37SEli Cohen sizeof(struct mlx5_mkey_seg); 222e126ba97SEli Cohen break; 223e126ba97SEli Cohen 224e126ba97SEli Cohen case IB_QPT_UD: 225e126ba97SEli Cohen case IB_QPT_SMI: 226e126ba97SEli Cohen case IB_QPT_GSI: 227b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 228e126ba97SEli Cohen sizeof(struct mlx5_wqe_datagram_seg); 229e126ba97SEli Cohen break; 230e126ba97SEli Cohen 231e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 232b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 233e126ba97SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 234e126ba97SEli Cohen sizeof(struct mlx5_mkey_seg); 235e126ba97SEli Cohen break; 236e126ba97SEli Cohen 237e126ba97SEli Cohen default: 238e126ba97SEli Cohen return -EINVAL; 239e126ba97SEli Cohen } 240e126ba97SEli Cohen 241e126ba97SEli Cohen return size; 242e126ba97SEli Cohen } 243e126ba97SEli Cohen 244e126ba97SEli Cohen static int calc_send_wqe(struct ib_qp_init_attr *attr) 245e126ba97SEli Cohen { 246e126ba97SEli Cohen int inl_size = 0; 247e126ba97SEli Cohen int size; 248e126ba97SEli Cohen 249e126ba97SEli Cohen size = sq_overhead(attr->qp_type); 250e126ba97SEli Cohen if (size < 0) 251e126ba97SEli Cohen return size; 252e126ba97SEli Cohen 253e126ba97SEli Cohen if (attr->cap.max_inline_data) { 254e126ba97SEli Cohen inl_size = size + sizeof(struct mlx5_wqe_inline_seg) + 255e126ba97SEli Cohen attr->cap.max_inline_data; 256e126ba97SEli Cohen } 257e126ba97SEli Cohen 258e126ba97SEli Cohen size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg); 259e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN && 260e1e66cc2SSagi Grimberg ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE) 261e1e66cc2SSagi Grimberg return MLX5_SIG_WQE_SIZE; 262e1e66cc2SSagi Grimberg else 263e126ba97SEli Cohen return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB); 264e126ba97SEli Cohen } 265e126ba97SEli Cohen 266e126ba97SEli Cohen static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 267e126ba97SEli Cohen struct mlx5_ib_qp *qp) 268e126ba97SEli Cohen { 269e126ba97SEli Cohen int wqe_size; 270e126ba97SEli Cohen int wq_size; 271e126ba97SEli Cohen 272e126ba97SEli Cohen if (!attr->cap.max_send_wr) 273e126ba97SEli Cohen return 0; 274e126ba97SEli Cohen 275e126ba97SEli Cohen wqe_size = calc_send_wqe(attr); 276e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size); 277e126ba97SEli Cohen if (wqe_size < 0) 278e126ba97SEli Cohen return wqe_size; 279e126ba97SEli Cohen 2809603b61dSJack Morgenstein if (wqe_size > dev->mdev->caps.max_sq_desc_sz) { 281b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", 2829603b61dSJack Morgenstein wqe_size, dev->mdev->caps.max_sq_desc_sz); 283e126ba97SEli Cohen return -EINVAL; 284e126ba97SEli Cohen } 285e126ba97SEli Cohen 286e126ba97SEli Cohen qp->max_inline_data = wqe_size - sq_overhead(attr->qp_type) - 287e126ba97SEli Cohen sizeof(struct mlx5_wqe_inline_seg); 288e126ba97SEli Cohen attr->cap.max_inline_data = qp->max_inline_data; 289e126ba97SEli Cohen 290e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) 291e1e66cc2SSagi Grimberg qp->signature_en = true; 292e1e66cc2SSagi Grimberg 293e126ba97SEli Cohen wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); 294e126ba97SEli Cohen qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; 2959603b61dSJack Morgenstein if (qp->sq.wqe_cnt > dev->mdev->caps.max_wqes) { 296b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", 2979603b61dSJack Morgenstein qp->sq.wqe_cnt, dev->mdev->caps.max_wqes); 298b125a54bSEli Cohen return -ENOMEM; 299b125a54bSEli Cohen } 300e126ba97SEli Cohen qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 301e126ba97SEli Cohen qp->sq.max_gs = attr->cap.max_send_sge; 302b125a54bSEli Cohen qp->sq.max_post = wq_size / wqe_size; 303b125a54bSEli Cohen attr->cap.max_send_wr = qp->sq.max_post; 304e126ba97SEli Cohen 305e126ba97SEli Cohen return wq_size; 306e126ba97SEli Cohen } 307e126ba97SEli Cohen 308e126ba97SEli Cohen static int set_user_buf_size(struct mlx5_ib_dev *dev, 309e126ba97SEli Cohen struct mlx5_ib_qp *qp, 310e126ba97SEli Cohen struct mlx5_ib_create_qp *ucmd) 311e126ba97SEli Cohen { 312e126ba97SEli Cohen int desc_sz = 1 << qp->sq.wqe_shift; 313e126ba97SEli Cohen 3149603b61dSJack Morgenstein if (desc_sz > dev->mdev->caps.max_sq_desc_sz) { 315e126ba97SEli Cohen mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n", 3169603b61dSJack Morgenstein desc_sz, dev->mdev->caps.max_sq_desc_sz); 317e126ba97SEli Cohen return -EINVAL; 318e126ba97SEli Cohen } 319e126ba97SEli Cohen 320e126ba97SEli Cohen if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) { 321e126ba97SEli Cohen mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n", 322e126ba97SEli Cohen ucmd->sq_wqe_count, ucmd->sq_wqe_count); 323e126ba97SEli Cohen return -EINVAL; 324e126ba97SEli Cohen } 325e126ba97SEli Cohen 326e126ba97SEli Cohen qp->sq.wqe_cnt = ucmd->sq_wqe_count; 327e126ba97SEli Cohen 3289603b61dSJack Morgenstein if (qp->sq.wqe_cnt > dev->mdev->caps.max_wqes) { 329e126ba97SEli Cohen mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n", 3309603b61dSJack Morgenstein qp->sq.wqe_cnt, dev->mdev->caps.max_wqes); 331e126ba97SEli Cohen return -EINVAL; 332e126ba97SEli Cohen } 333e126ba97SEli Cohen 334e126ba97SEli Cohen qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) + 335e126ba97SEli Cohen (qp->sq.wqe_cnt << 6); 336e126ba97SEli Cohen 337e126ba97SEli Cohen return 0; 338e126ba97SEli Cohen } 339e126ba97SEli Cohen 340e126ba97SEli Cohen static int qp_has_rq(struct ib_qp_init_attr *attr) 341e126ba97SEli Cohen { 342e126ba97SEli Cohen if (attr->qp_type == IB_QPT_XRC_INI || 343e126ba97SEli Cohen attr->qp_type == IB_QPT_XRC_TGT || attr->srq || 344e126ba97SEli Cohen attr->qp_type == MLX5_IB_QPT_REG_UMR || 345e126ba97SEli Cohen !attr->cap.max_recv_wr) 346e126ba97SEli Cohen return 0; 347e126ba97SEli Cohen 348e126ba97SEli Cohen return 1; 349e126ba97SEli Cohen } 350e126ba97SEli Cohen 351c1be5232SEli Cohen static int first_med_uuar(void) 352c1be5232SEli Cohen { 353c1be5232SEli Cohen return 1; 354c1be5232SEli Cohen } 355c1be5232SEli Cohen 356c1be5232SEli Cohen static int next_uuar(int n) 357c1be5232SEli Cohen { 358c1be5232SEli Cohen n++; 359c1be5232SEli Cohen 360c1be5232SEli Cohen while (((n % 4) & 2)) 361c1be5232SEli Cohen n++; 362c1be5232SEli Cohen 363c1be5232SEli Cohen return n; 364c1be5232SEli Cohen } 365c1be5232SEli Cohen 366c1be5232SEli Cohen static int num_med_uuar(struct mlx5_uuar_info *uuari) 367c1be5232SEli Cohen { 368c1be5232SEli Cohen int n; 369c1be5232SEli Cohen 370c1be5232SEli Cohen n = uuari->num_uars * MLX5_NON_FP_BF_REGS_PER_PAGE - 371c1be5232SEli Cohen uuari->num_low_latency_uuars - 1; 372c1be5232SEli Cohen 373c1be5232SEli Cohen return n >= 0 ? n : 0; 374c1be5232SEli Cohen } 375c1be5232SEli Cohen 376c1be5232SEli Cohen static int max_uuari(struct mlx5_uuar_info *uuari) 377c1be5232SEli Cohen { 378c1be5232SEli Cohen return uuari->num_uars * 4; 379c1be5232SEli Cohen } 380c1be5232SEli Cohen 381c1be5232SEli Cohen static int first_hi_uuar(struct mlx5_uuar_info *uuari) 382c1be5232SEli Cohen { 383c1be5232SEli Cohen int med; 384c1be5232SEli Cohen int i; 385c1be5232SEli Cohen int t; 386c1be5232SEli Cohen 387c1be5232SEli Cohen med = num_med_uuar(uuari); 388c1be5232SEli Cohen for (t = 0, i = first_med_uuar();; i = next_uuar(i)) { 389c1be5232SEli Cohen t++; 390c1be5232SEli Cohen if (t == med) 391c1be5232SEli Cohen return next_uuar(i); 392c1be5232SEli Cohen } 393c1be5232SEli Cohen 394c1be5232SEli Cohen return 0; 395c1be5232SEli Cohen } 396c1be5232SEli Cohen 397e126ba97SEli Cohen static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari) 398e126ba97SEli Cohen { 399e126ba97SEli Cohen int i; 400e126ba97SEli Cohen 401c1be5232SEli Cohen for (i = first_hi_uuar(uuari); i < max_uuari(uuari); i = next_uuar(i)) { 402e126ba97SEli Cohen if (!test_bit(i, uuari->bitmap)) { 403e126ba97SEli Cohen set_bit(i, uuari->bitmap); 404e126ba97SEli Cohen uuari->count[i]++; 405e126ba97SEli Cohen return i; 406e126ba97SEli Cohen } 407e126ba97SEli Cohen } 408e126ba97SEli Cohen 409e126ba97SEli Cohen return -ENOMEM; 410e126ba97SEli Cohen } 411e126ba97SEli Cohen 412e126ba97SEli Cohen static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari) 413e126ba97SEli Cohen { 414c1be5232SEli Cohen int minidx = first_med_uuar(); 415e126ba97SEli Cohen int i; 416e126ba97SEli Cohen 417c1be5232SEli Cohen for (i = first_med_uuar(); i < first_hi_uuar(uuari); i = next_uuar(i)) { 418e126ba97SEli Cohen if (uuari->count[i] < uuari->count[minidx]) 419e126ba97SEli Cohen minidx = i; 420e126ba97SEli Cohen } 421e126ba97SEli Cohen 422e126ba97SEli Cohen uuari->count[minidx]++; 423e126ba97SEli Cohen return minidx; 424e126ba97SEli Cohen } 425e126ba97SEli Cohen 426e126ba97SEli Cohen static int alloc_uuar(struct mlx5_uuar_info *uuari, 427e126ba97SEli Cohen enum mlx5_ib_latency_class lat) 428e126ba97SEli Cohen { 429e126ba97SEli Cohen int uuarn = -EINVAL; 430e126ba97SEli Cohen 431e126ba97SEli Cohen mutex_lock(&uuari->lock); 432e126ba97SEli Cohen switch (lat) { 433e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_LOW: 434e126ba97SEli Cohen uuarn = 0; 435e126ba97SEli Cohen uuari->count[uuarn]++; 436e126ba97SEli Cohen break; 437e126ba97SEli Cohen 438e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_MEDIUM: 43978c0f98cSEli Cohen if (uuari->ver < 2) 44078c0f98cSEli Cohen uuarn = -ENOMEM; 44178c0f98cSEli Cohen else 442e126ba97SEli Cohen uuarn = alloc_med_class_uuar(uuari); 443e126ba97SEli Cohen break; 444e126ba97SEli Cohen 445e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_HIGH: 44678c0f98cSEli Cohen if (uuari->ver < 2) 44778c0f98cSEli Cohen uuarn = -ENOMEM; 44878c0f98cSEli Cohen else 449e126ba97SEli Cohen uuarn = alloc_high_class_uuar(uuari); 450e126ba97SEli Cohen break; 451e126ba97SEli Cohen 452e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_FAST_PATH: 453e126ba97SEli Cohen uuarn = 2; 454e126ba97SEli Cohen break; 455e126ba97SEli Cohen } 456e126ba97SEli Cohen mutex_unlock(&uuari->lock); 457e126ba97SEli Cohen 458e126ba97SEli Cohen return uuarn; 459e126ba97SEli Cohen } 460e126ba97SEli Cohen 461e126ba97SEli Cohen static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 462e126ba97SEli Cohen { 463e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 464e126ba97SEli Cohen --uuari->count[uuarn]; 465e126ba97SEli Cohen } 466e126ba97SEli Cohen 467e126ba97SEli Cohen static void free_high_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_uuar(struct mlx5_uuar_info *uuari, int uuarn) 474e126ba97SEli Cohen { 475e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 476e126ba97SEli Cohen int high_uuar = nuuars - uuari->num_low_latency_uuars; 477e126ba97SEli Cohen 478e126ba97SEli Cohen mutex_lock(&uuari->lock); 479e126ba97SEli Cohen if (uuarn == 0) { 480e126ba97SEli Cohen --uuari->count[uuarn]; 481e126ba97SEli Cohen goto out; 482e126ba97SEli Cohen } 483e126ba97SEli Cohen 484e126ba97SEli Cohen if (uuarn < high_uuar) { 485e126ba97SEli Cohen free_med_class_uuar(uuari, uuarn); 486e126ba97SEli Cohen goto out; 487e126ba97SEli Cohen } 488e126ba97SEli Cohen 489e126ba97SEli Cohen free_high_class_uuar(uuari, uuarn); 490e126ba97SEli Cohen 491e126ba97SEli Cohen out: 492e126ba97SEli Cohen mutex_unlock(&uuari->lock); 493e126ba97SEli Cohen } 494e126ba97SEli Cohen 495e126ba97SEli Cohen static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state) 496e126ba97SEli Cohen { 497e126ba97SEli Cohen switch (state) { 498e126ba97SEli Cohen case IB_QPS_RESET: return MLX5_QP_STATE_RST; 499e126ba97SEli Cohen case IB_QPS_INIT: return MLX5_QP_STATE_INIT; 500e126ba97SEli Cohen case IB_QPS_RTR: return MLX5_QP_STATE_RTR; 501e126ba97SEli Cohen case IB_QPS_RTS: return MLX5_QP_STATE_RTS; 502e126ba97SEli Cohen case IB_QPS_SQD: return MLX5_QP_STATE_SQD; 503e126ba97SEli Cohen case IB_QPS_SQE: return MLX5_QP_STATE_SQER; 504e126ba97SEli Cohen case IB_QPS_ERR: return MLX5_QP_STATE_ERR; 505e126ba97SEli Cohen default: return -1; 506e126ba97SEli Cohen } 507e126ba97SEli Cohen } 508e126ba97SEli Cohen 509e126ba97SEli Cohen static int to_mlx5_st(enum ib_qp_type type) 510e126ba97SEli Cohen { 511e126ba97SEli Cohen switch (type) { 512e126ba97SEli Cohen case IB_QPT_RC: return MLX5_QP_ST_RC; 513e126ba97SEli Cohen case IB_QPT_UC: return MLX5_QP_ST_UC; 514e126ba97SEli Cohen case IB_QPT_UD: return MLX5_QP_ST_UD; 515e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR; 516e126ba97SEli Cohen case IB_QPT_XRC_INI: 517e126ba97SEli Cohen case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC; 518e126ba97SEli Cohen case IB_QPT_SMI: return MLX5_QP_ST_QP0; 519e126ba97SEli Cohen case IB_QPT_GSI: return MLX5_QP_ST_QP1; 520e126ba97SEli Cohen case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6; 521e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE; 522e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 523e126ba97SEli Cohen case IB_QPT_MAX: 524e126ba97SEli Cohen default: return -EINVAL; 525e126ba97SEli Cohen } 526e126ba97SEli Cohen } 527e126ba97SEli Cohen 528e126ba97SEli Cohen static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn) 529e126ba97SEli Cohen { 530e126ba97SEli Cohen return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index; 531e126ba97SEli Cohen } 532e126ba97SEli Cohen 533e126ba97SEli Cohen static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, 534e126ba97SEli Cohen struct mlx5_ib_qp *qp, struct ib_udata *udata, 535e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, 536e126ba97SEli Cohen struct mlx5_ib_create_qp_resp *resp, int *inlen) 537e126ba97SEli Cohen { 538e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 539e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 5409e9c47d0SEli Cohen int page_shift = 0; 541e126ba97SEli Cohen int uar_index; 542e126ba97SEli Cohen int npages; 5439e9c47d0SEli Cohen u32 offset = 0; 544e126ba97SEli Cohen int uuarn; 5459e9c47d0SEli Cohen int ncont = 0; 546e126ba97SEli Cohen int err; 547e126ba97SEli Cohen 548e126ba97SEli Cohen err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 549e126ba97SEli Cohen if (err) { 550e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 551e126ba97SEli Cohen return err; 552e126ba97SEli Cohen } 553e126ba97SEli Cohen 554e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 555e126ba97SEli Cohen /* 556e126ba97SEli Cohen * TBD: should come from the verbs when we have the API 557e126ba97SEli Cohen */ 558e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH); 559e126ba97SEli Cohen if (uuarn < 0) { 560e126ba97SEli Cohen mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n"); 561c1be5232SEli Cohen mlx5_ib_dbg(dev, "reverting to medium latency\n"); 562c1be5232SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_MEDIUM); 563c1be5232SEli Cohen if (uuarn < 0) { 564c1be5232SEli Cohen mlx5_ib_dbg(dev, "failed to allocate medium latency UUAR\n"); 565e126ba97SEli Cohen mlx5_ib_dbg(dev, "reverting to high latency\n"); 566e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW); 567e126ba97SEli Cohen if (uuarn < 0) { 568c1be5232SEli Cohen mlx5_ib_warn(dev, "uuar allocation failed\n"); 569e126ba97SEli Cohen return uuarn; 570e126ba97SEli Cohen } 571e126ba97SEli Cohen } 572c1be5232SEli Cohen } 573e126ba97SEli Cohen 574e126ba97SEli Cohen uar_index = uuarn_to_uar_index(&context->uuari, uuarn); 575e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index); 576e126ba97SEli Cohen 57748fea837SHaggai Eran qp->rq.offset = 0; 57848fea837SHaggai Eran qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 57948fea837SHaggai Eran qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 58048fea837SHaggai Eran 581e126ba97SEli Cohen err = set_user_buf_size(dev, qp, &ucmd); 582e126ba97SEli Cohen if (err) 583e126ba97SEli Cohen goto err_uuar; 584e126ba97SEli Cohen 5859e9c47d0SEli Cohen if (ucmd.buf_addr && qp->buf_size) { 586e126ba97SEli Cohen qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, 587e126ba97SEli Cohen qp->buf_size, 0, 0); 588e126ba97SEli Cohen if (IS_ERR(qp->umem)) { 589e126ba97SEli Cohen mlx5_ib_dbg(dev, "umem_get failed\n"); 590e126ba97SEli Cohen err = PTR_ERR(qp->umem); 591e126ba97SEli Cohen goto err_uuar; 592e126ba97SEli Cohen } 5939e9c47d0SEli Cohen } else { 5949e9c47d0SEli Cohen qp->umem = NULL; 5959e9c47d0SEli Cohen } 596e126ba97SEli Cohen 5979e9c47d0SEli Cohen if (qp->umem) { 598e126ba97SEli Cohen mlx5_ib_cont_pages(qp->umem, ucmd.buf_addr, &npages, &page_shift, 599e126ba97SEli Cohen &ncont, NULL); 600e126ba97SEli Cohen err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift, &offset); 601e126ba97SEli Cohen if (err) { 602e126ba97SEli Cohen mlx5_ib_warn(dev, "bad offset\n"); 603e126ba97SEli Cohen goto err_umem; 604e126ba97SEli Cohen } 605e126ba97SEli Cohen mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n", 606e126ba97SEli Cohen ucmd.buf_addr, qp->buf_size, npages, page_shift, ncont, offset); 6079e9c47d0SEli Cohen } 608e126ba97SEli Cohen 609e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont; 610e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 611e126ba97SEli Cohen if (!*in) { 612e126ba97SEli Cohen err = -ENOMEM; 613e126ba97SEli Cohen goto err_umem; 614e126ba97SEli Cohen } 6159e9c47d0SEli Cohen if (qp->umem) 616e126ba97SEli Cohen mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); 617e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 6181b77d2bdSEli Cohen cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 619e126ba97SEli Cohen (*in)->ctx.params2 = cpu_to_be32(offset << 6); 620e126ba97SEli Cohen 621e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 622e126ba97SEli Cohen resp->uuar_index = uuarn; 623e126ba97SEli Cohen qp->uuarn = uuarn; 624e126ba97SEli Cohen 625e126ba97SEli Cohen err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db); 626e126ba97SEli Cohen if (err) { 627e126ba97SEli Cohen mlx5_ib_dbg(dev, "map failed\n"); 628e126ba97SEli Cohen goto err_free; 629e126ba97SEli Cohen } 630e126ba97SEli Cohen 631e126ba97SEli Cohen err = ib_copy_to_udata(udata, resp, sizeof(*resp)); 632e126ba97SEli Cohen if (err) { 633e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 634e126ba97SEli Cohen goto err_unmap; 635e126ba97SEli Cohen } 636e126ba97SEli Cohen qp->create_type = MLX5_QP_USER; 637e126ba97SEli Cohen 638e126ba97SEli Cohen return 0; 639e126ba97SEli Cohen 640e126ba97SEli Cohen err_unmap: 641e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 642e126ba97SEli Cohen 643e126ba97SEli Cohen err_free: 644e126ba97SEli Cohen mlx5_vfree(*in); 645e126ba97SEli Cohen 646e126ba97SEli Cohen err_umem: 6479e9c47d0SEli Cohen if (qp->umem) 648e126ba97SEli Cohen ib_umem_release(qp->umem); 649e126ba97SEli Cohen 650e126ba97SEli Cohen err_uuar: 651e126ba97SEli Cohen free_uuar(&context->uuari, uuarn); 652e126ba97SEli Cohen return err; 653e126ba97SEli Cohen } 654e126ba97SEli Cohen 655e126ba97SEli Cohen static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp) 656e126ba97SEli Cohen { 657e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 658e126ba97SEli Cohen 659e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 660e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 6619e9c47d0SEli Cohen if (qp->umem) 662e126ba97SEli Cohen ib_umem_release(qp->umem); 663e126ba97SEli Cohen free_uuar(&context->uuari, qp->uuarn); 664e126ba97SEli Cohen } 665e126ba97SEli Cohen 666e126ba97SEli Cohen static int create_kernel_qp(struct mlx5_ib_dev *dev, 667e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 668e126ba97SEli Cohen struct mlx5_ib_qp *qp, 669e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, int *inlen) 670e126ba97SEli Cohen { 671e126ba97SEli Cohen enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW; 672e126ba97SEli Cohen struct mlx5_uuar_info *uuari; 673e126ba97SEli Cohen int uar_index; 674e126ba97SEli Cohen int uuarn; 675e126ba97SEli Cohen int err; 676e126ba97SEli Cohen 6779603b61dSJack Morgenstein uuari = &dev->mdev->priv.uuari; 678652c1a05SOr Gerlitz if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)) 6791a4c3a3dSEli Cohen return -EINVAL; 680e126ba97SEli Cohen 681e126ba97SEli Cohen if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR) 682e126ba97SEli Cohen lc = MLX5_IB_LATENCY_CLASS_FAST_PATH; 683e126ba97SEli Cohen 684e126ba97SEli Cohen uuarn = alloc_uuar(uuari, lc); 685e126ba97SEli Cohen if (uuarn < 0) { 686e126ba97SEli Cohen mlx5_ib_dbg(dev, "\n"); 687e126ba97SEli Cohen return -ENOMEM; 688e126ba97SEli Cohen } 689e126ba97SEli Cohen 690e126ba97SEli Cohen qp->bf = &uuari->bfs[uuarn]; 691e126ba97SEli Cohen uar_index = qp->bf->uar->index; 692e126ba97SEli Cohen 693e126ba97SEli Cohen err = calc_sq_size(dev, init_attr, qp); 694e126ba97SEli Cohen if (err < 0) { 695e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 696e126ba97SEli Cohen goto err_uuar; 697e126ba97SEli Cohen } 698e126ba97SEli Cohen 699e126ba97SEli Cohen qp->rq.offset = 0; 700e126ba97SEli Cohen qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 701e126ba97SEli Cohen qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); 702e126ba97SEli Cohen 7039603b61dSJack Morgenstein err = mlx5_buf_alloc(dev->mdev, qp->buf_size, PAGE_SIZE * 2, &qp->buf); 704e126ba97SEli Cohen if (err) { 705e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 706e126ba97SEli Cohen goto err_uuar; 707e126ba97SEli Cohen } 708e126ba97SEli Cohen 709e126ba97SEli Cohen qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt); 710e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * qp->buf.npages; 711e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 712e126ba97SEli Cohen if (!*in) { 713e126ba97SEli Cohen err = -ENOMEM; 714e126ba97SEli Cohen goto err_buf; 715e126ba97SEli Cohen } 716e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 7171b77d2bdSEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 7181b77d2bdSEli Cohen cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 719e126ba97SEli Cohen /* Set "fast registration enabled" for all kernel QPs */ 720e126ba97SEli Cohen (*in)->ctx.params1 |= cpu_to_be32(1 << 11); 721e126ba97SEli Cohen (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); 722e126ba97SEli Cohen 723e126ba97SEli Cohen mlx5_fill_page_array(&qp->buf, (*in)->pas); 724e126ba97SEli Cohen 7259603b61dSJack Morgenstein err = mlx5_db_alloc(dev->mdev, &qp->db); 726e126ba97SEli Cohen if (err) { 727e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 728e126ba97SEli Cohen goto err_free; 729e126ba97SEli Cohen } 730e126ba97SEli Cohen 731e126ba97SEli Cohen qp->db.db[0] = 0; 732e126ba97SEli Cohen qp->db.db[1] = 0; 733e126ba97SEli Cohen 734e126ba97SEli Cohen qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL); 735e126ba97SEli Cohen qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL); 736e126ba97SEli Cohen qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL); 737e126ba97SEli Cohen qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL); 738e126ba97SEli Cohen qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL); 739e126ba97SEli Cohen 740e126ba97SEli Cohen if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid || 741e126ba97SEli Cohen !qp->sq.w_list || !qp->sq.wqe_head) { 742e126ba97SEli Cohen err = -ENOMEM; 743e126ba97SEli Cohen goto err_wrid; 744e126ba97SEli Cohen } 745e126ba97SEli Cohen qp->create_type = MLX5_QP_KERNEL; 746e126ba97SEli Cohen 747e126ba97SEli Cohen return 0; 748e126ba97SEli Cohen 749e126ba97SEli Cohen err_wrid: 7509603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 751e126ba97SEli Cohen kfree(qp->sq.wqe_head); 752e126ba97SEli Cohen kfree(qp->sq.w_list); 753e126ba97SEli Cohen kfree(qp->sq.wrid); 754e126ba97SEli Cohen kfree(qp->sq.wr_data); 755e126ba97SEli Cohen kfree(qp->rq.wrid); 756e126ba97SEli Cohen 757e126ba97SEli Cohen err_free: 758e126ba97SEli Cohen mlx5_vfree(*in); 759e126ba97SEli Cohen 760e126ba97SEli Cohen err_buf: 7619603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 762e126ba97SEli Cohen 763e126ba97SEli Cohen err_uuar: 7649603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, uuarn); 765e126ba97SEli Cohen return err; 766e126ba97SEli Cohen } 767e126ba97SEli Cohen 768e126ba97SEli Cohen static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 769e126ba97SEli Cohen { 7709603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 771e126ba97SEli Cohen kfree(qp->sq.wqe_head); 772e126ba97SEli Cohen kfree(qp->sq.w_list); 773e126ba97SEli Cohen kfree(qp->sq.wrid); 774e126ba97SEli Cohen kfree(qp->sq.wr_data); 775e126ba97SEli Cohen kfree(qp->rq.wrid); 7769603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 7779603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, qp->bf->uuarn); 778e126ba97SEli Cohen } 779e126ba97SEli Cohen 780e126ba97SEli Cohen static __be32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr) 781e126ba97SEli Cohen { 782e126ba97SEli Cohen if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) || 783e126ba97SEli Cohen (attr->qp_type == IB_QPT_XRC_INI)) 784e126ba97SEli Cohen return cpu_to_be32(MLX5_SRQ_RQ); 785e126ba97SEli Cohen else if (!qp->has_rq) 786e126ba97SEli Cohen return cpu_to_be32(MLX5_ZERO_LEN_RQ); 787e126ba97SEli Cohen else 788e126ba97SEli Cohen return cpu_to_be32(MLX5_NON_ZERO_RQ); 789e126ba97SEli Cohen } 790e126ba97SEli Cohen 791e126ba97SEli Cohen static int is_connected(enum ib_qp_type qp_type) 792e126ba97SEli Cohen { 793e126ba97SEli Cohen if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC) 794e126ba97SEli Cohen return 1; 795e126ba97SEli Cohen 796e126ba97SEli Cohen return 0; 797e126ba97SEli Cohen } 798e126ba97SEli Cohen 799e126ba97SEli Cohen static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, 800e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 801e126ba97SEli Cohen struct ib_udata *udata, struct mlx5_ib_qp *qp) 802e126ba97SEli Cohen { 803e126ba97SEli Cohen struct mlx5_ib_resources *devr = &dev->devr; 804e126ba97SEli Cohen struct mlx5_ib_create_qp_resp resp; 805e126ba97SEli Cohen struct mlx5_create_qp_mbox_in *in; 806e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 807e126ba97SEli Cohen int inlen = sizeof(*in); 808e126ba97SEli Cohen int err; 809e126ba97SEli Cohen 810e126ba97SEli Cohen mutex_init(&qp->mutex); 811e126ba97SEli Cohen spin_lock_init(&qp->sq.lock); 812e126ba97SEli Cohen spin_lock_init(&qp->rq.lock); 813e126ba97SEli Cohen 814f360d88aSEli Cohen if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) { 8159603b61dSJack Morgenstein if (!(dev->mdev->caps.flags & MLX5_DEV_CAP_FLAG_BLOCK_MCAST)) { 816f360d88aSEli Cohen mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n"); 817f360d88aSEli Cohen return -EINVAL; 818f360d88aSEli Cohen } else { 819f360d88aSEli Cohen qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK; 820f360d88aSEli Cohen } 821f360d88aSEli Cohen } 822f360d88aSEli Cohen 823e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) 824e126ba97SEli Cohen qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE; 825e126ba97SEli Cohen 826e126ba97SEli Cohen if (pd && pd->uobject) { 827e126ba97SEli Cohen if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { 828e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 829e126ba97SEli Cohen return -EFAULT; 830e126ba97SEli Cohen } 831e126ba97SEli Cohen 832e126ba97SEli Cohen qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); 833e126ba97SEli Cohen qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); 834e126ba97SEli Cohen } else { 835e126ba97SEli Cohen qp->wq_sig = !!wq_signature; 836e126ba97SEli Cohen } 837e126ba97SEli Cohen 838e126ba97SEli Cohen qp->has_rq = qp_has_rq(init_attr); 839e126ba97SEli Cohen err = set_rq_size(dev, &init_attr->cap, qp->has_rq, 840e126ba97SEli Cohen qp, (pd && pd->uobject) ? &ucmd : NULL); 841e126ba97SEli Cohen if (err) { 842e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 843e126ba97SEli Cohen return err; 844e126ba97SEli Cohen } 845e126ba97SEli Cohen 846e126ba97SEli Cohen if (pd) { 847e126ba97SEli Cohen if (pd->uobject) { 848e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count); 849e126ba97SEli Cohen if (ucmd.rq_wqe_shift != qp->rq.wqe_shift || 850e126ba97SEli Cohen ucmd.rq_wqe_count != qp->rq.wqe_cnt) { 851e126ba97SEli Cohen mlx5_ib_dbg(dev, "invalid rq params\n"); 852e126ba97SEli Cohen return -EINVAL; 853e126ba97SEli Cohen } 8549603b61dSJack Morgenstein if (ucmd.sq_wqe_count > dev->mdev->caps.max_wqes) { 855e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n", 8569603b61dSJack Morgenstein ucmd.sq_wqe_count, dev->mdev->caps.max_wqes); 857e126ba97SEli Cohen return -EINVAL; 858e126ba97SEli Cohen } 859e126ba97SEli Cohen err = create_user_qp(dev, pd, qp, udata, &in, &resp, &inlen); 860e126ba97SEli Cohen if (err) 861e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 862e126ba97SEli Cohen } else { 863e126ba97SEli Cohen err = create_kernel_qp(dev, init_attr, qp, &in, &inlen); 864e126ba97SEli Cohen if (err) 865e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 866e126ba97SEli Cohen else 867e126ba97SEli Cohen qp->pa_lkey = to_mpd(pd)->pa_lkey; 868e126ba97SEli Cohen } 869e126ba97SEli Cohen 870e126ba97SEli Cohen if (err) 871e126ba97SEli Cohen return err; 872e126ba97SEli Cohen } else { 873e126ba97SEli Cohen in = mlx5_vzalloc(sizeof(*in)); 874e126ba97SEli Cohen if (!in) 875e126ba97SEli Cohen return -ENOMEM; 876e126ba97SEli Cohen 877e126ba97SEli Cohen qp->create_type = MLX5_QP_EMPTY; 878e126ba97SEli Cohen } 879e126ba97SEli Cohen 880e126ba97SEli Cohen if (is_sqp(init_attr->qp_type)) 881e126ba97SEli Cohen qp->port = init_attr->port_num; 882e126ba97SEli Cohen 883e126ba97SEli Cohen in->ctx.flags = cpu_to_be32(to_mlx5_st(init_attr->qp_type) << 16 | 884e126ba97SEli Cohen MLX5_QP_PM_MIGRATED << 11); 885e126ba97SEli Cohen 886e126ba97SEli Cohen if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR) 887e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(to_mpd(pd ? pd : devr->p0)->pdn); 888e126ba97SEli Cohen else 889e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(MLX5_QP_LAT_SENSITIVE); 890e126ba97SEli Cohen 891e126ba97SEli Cohen if (qp->wq_sig) 892e126ba97SEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_ENABLE_SIG); 893e126ba97SEli Cohen 894f360d88aSEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 895f360d88aSEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_BLOCK_MCAST); 896f360d88aSEli Cohen 897e126ba97SEli Cohen if (qp->scat_cqe && is_connected(init_attr->qp_type)) { 898e126ba97SEli Cohen int rcqe_sz; 899e126ba97SEli Cohen int scqe_sz; 900e126ba97SEli Cohen 901e126ba97SEli Cohen rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq); 902e126ba97SEli Cohen scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq); 903e126ba97SEli Cohen 904e126ba97SEli Cohen if (rcqe_sz == 128) 905e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA64_CQE; 906e126ba97SEli Cohen else 907e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA32_CQE; 908e126ba97SEli Cohen 909e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) { 910e126ba97SEli Cohen if (scqe_sz == 128) 911e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA64_CQE; 912e126ba97SEli Cohen else 913e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA32_CQE; 914e126ba97SEli Cohen } 915e126ba97SEli Cohen } 916e126ba97SEli Cohen 917e126ba97SEli Cohen if (qp->rq.wqe_cnt) { 918e126ba97SEli Cohen in->ctx.rq_size_stride = (qp->rq.wqe_shift - 4); 919e126ba97SEli Cohen in->ctx.rq_size_stride |= ilog2(qp->rq.wqe_cnt) << 3; 920e126ba97SEli Cohen } 921e126ba97SEli Cohen 922e126ba97SEli Cohen in->ctx.rq_type_srqn = get_rx_type(qp, init_attr); 923e126ba97SEli Cohen 924e126ba97SEli Cohen if (qp->sq.wqe_cnt) 925e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(ilog2(qp->sq.wqe_cnt) << 11); 926e126ba97SEli Cohen else 927e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(0x8000); 928e126ba97SEli Cohen 929e126ba97SEli Cohen /* Set default resources */ 930e126ba97SEli Cohen switch (init_attr->qp_type) { 931e126ba97SEli Cohen case IB_QPT_XRC_TGT: 932e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 933e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 934e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 935e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(init_attr->xrcd)->xrcdn); 936e126ba97SEli Cohen break; 937e126ba97SEli Cohen case IB_QPT_XRC_INI: 938e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 939e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 940e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 941e126ba97SEli Cohen break; 942e126ba97SEli Cohen default: 943e126ba97SEli Cohen if (init_attr->srq) { 944e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x0)->xrcdn); 945e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(init_attr->srq)->msrq.srqn); 946e126ba97SEli Cohen } else { 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 } 950e126ba97SEli Cohen } 951e126ba97SEli Cohen 952e126ba97SEli Cohen if (init_attr->send_cq) 953e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(init_attr->send_cq)->mcq.cqn); 954e126ba97SEli Cohen 955e126ba97SEli Cohen if (init_attr->recv_cq) 956e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(init_attr->recv_cq)->mcq.cqn); 957e126ba97SEli Cohen 958e126ba97SEli Cohen in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); 959e126ba97SEli Cohen 9609603b61dSJack Morgenstein err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen); 961e126ba97SEli Cohen if (err) { 962e126ba97SEli Cohen mlx5_ib_dbg(dev, "create qp failed\n"); 963e126ba97SEli Cohen goto err_create; 964e126ba97SEli Cohen } 965e126ba97SEli Cohen 966e126ba97SEli Cohen mlx5_vfree(in); 967e126ba97SEli Cohen /* Hardware wants QPN written in big-endian order (after 968e126ba97SEli Cohen * shifting) for send doorbell. Precompute this value to save 969e126ba97SEli Cohen * a little bit when posting sends. 970e126ba97SEli Cohen */ 971e126ba97SEli Cohen qp->doorbell_qpn = swab32(qp->mqp.qpn << 8); 972e126ba97SEli Cohen 973e126ba97SEli Cohen qp->mqp.event = mlx5_ib_qp_event; 974e126ba97SEli Cohen 975e126ba97SEli Cohen return 0; 976e126ba97SEli Cohen 977e126ba97SEli Cohen err_create: 978e126ba97SEli Cohen if (qp->create_type == MLX5_QP_USER) 979e126ba97SEli Cohen destroy_qp_user(pd, qp); 980e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_KERNEL) 981e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 982e126ba97SEli Cohen 983e126ba97SEli Cohen mlx5_vfree(in); 984e126ba97SEli Cohen return err; 985e126ba97SEli Cohen } 986e126ba97SEli Cohen 987e126ba97SEli Cohen static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 988e126ba97SEli Cohen __acquires(&send_cq->lock) __acquires(&recv_cq->lock) 989e126ba97SEli Cohen { 990e126ba97SEli Cohen if (send_cq) { 991e126ba97SEli Cohen if (recv_cq) { 992e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 993e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 994e126ba97SEli Cohen spin_lock_nested(&recv_cq->lock, 995e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 996e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 997e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 998e126ba97SEli Cohen __acquire(&recv_cq->lock); 999e126ba97SEli Cohen } else { 1000e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1001e126ba97SEli Cohen spin_lock_nested(&send_cq->lock, 1002e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1003e126ba97SEli Cohen } 1004e126ba97SEli Cohen } else { 1005e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1006e126ba97SEli Cohen } 1007e126ba97SEli Cohen } else if (recv_cq) { 1008e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1009e126ba97SEli Cohen } 1010e126ba97SEli Cohen } 1011e126ba97SEli Cohen 1012e126ba97SEli Cohen static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1013e126ba97SEli Cohen __releases(&send_cq->lock) __releases(&recv_cq->lock) 1014e126ba97SEli Cohen { 1015e126ba97SEli Cohen if (send_cq) { 1016e126ba97SEli Cohen if (recv_cq) { 1017e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1018e126ba97SEli Cohen spin_unlock(&recv_cq->lock); 1019e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1020e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1021e126ba97SEli Cohen __release(&recv_cq->lock); 1022e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1023e126ba97SEli Cohen } else { 1024e126ba97SEli Cohen spin_unlock(&send_cq->lock); 1025e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1026e126ba97SEli Cohen } 1027e126ba97SEli Cohen } else { 1028e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1029e126ba97SEli Cohen } 1030e126ba97SEli Cohen } else if (recv_cq) { 1031e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1032e126ba97SEli Cohen } 1033e126ba97SEli Cohen } 1034e126ba97SEli Cohen 1035e126ba97SEli Cohen static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp) 1036e126ba97SEli Cohen { 1037e126ba97SEli Cohen return to_mpd(qp->ibqp.pd); 1038e126ba97SEli Cohen } 1039e126ba97SEli Cohen 1040e126ba97SEli Cohen static void get_cqs(struct mlx5_ib_qp *qp, 1041e126ba97SEli Cohen struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq) 1042e126ba97SEli Cohen { 1043e126ba97SEli Cohen switch (qp->ibqp.qp_type) { 1044e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1045e126ba97SEli Cohen *send_cq = NULL; 1046e126ba97SEli Cohen *recv_cq = NULL; 1047e126ba97SEli Cohen break; 1048e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1049e126ba97SEli Cohen case IB_QPT_XRC_INI: 1050e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1051e126ba97SEli Cohen *recv_cq = NULL; 1052e126ba97SEli Cohen break; 1053e126ba97SEli Cohen 1054e126ba97SEli Cohen case IB_QPT_SMI: 1055e126ba97SEli Cohen case IB_QPT_GSI: 1056e126ba97SEli Cohen case IB_QPT_RC: 1057e126ba97SEli Cohen case IB_QPT_UC: 1058e126ba97SEli Cohen case IB_QPT_UD: 1059e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1060e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1061e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1062e126ba97SEli Cohen *recv_cq = to_mcq(qp->ibqp.recv_cq); 1063e126ba97SEli Cohen break; 1064e126ba97SEli Cohen 1065e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1066e126ba97SEli Cohen case IB_QPT_MAX: 1067e126ba97SEli Cohen default: 1068e126ba97SEli Cohen *send_cq = NULL; 1069e126ba97SEli Cohen *recv_cq = NULL; 1070e126ba97SEli Cohen break; 1071e126ba97SEli Cohen } 1072e126ba97SEli Cohen } 1073e126ba97SEli Cohen 1074e126ba97SEli Cohen static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 1075e126ba97SEli Cohen { 1076e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1077e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1078e126ba97SEli Cohen int err; 1079e126ba97SEli Cohen 1080e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1081e126ba97SEli Cohen if (!in) 1082e126ba97SEli Cohen return; 1083e126ba97SEli Cohen if (qp->state != IB_QPS_RESET) 10849603b61dSJack Morgenstein if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state), 1085e126ba97SEli Cohen MLX5_QP_STATE_RST, in, sizeof(*in), &qp->mqp)) 1086e126ba97SEli Cohen mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n", 1087e126ba97SEli Cohen qp->mqp.qpn); 1088e126ba97SEli Cohen 1089e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1090e126ba97SEli Cohen 1091e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) { 1092e126ba97SEli Cohen mlx5_ib_lock_cqs(send_cq, recv_cq); 1093e126ba97SEli Cohen __mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1094e126ba97SEli Cohen qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 1095e126ba97SEli Cohen if (send_cq != recv_cq) 1096e126ba97SEli Cohen __mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1097e126ba97SEli Cohen mlx5_ib_unlock_cqs(send_cq, recv_cq); 1098e126ba97SEli Cohen } 1099e126ba97SEli Cohen 11009603b61dSJack Morgenstein err = mlx5_core_destroy_qp(dev->mdev, &qp->mqp); 1101e126ba97SEli Cohen if (err) 1102e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", qp->mqp.qpn); 1103e126ba97SEli Cohen kfree(in); 1104e126ba97SEli Cohen 1105e126ba97SEli Cohen 1106e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) 1107e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1108e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_USER) 1109e126ba97SEli Cohen destroy_qp_user(&get_pd(qp)->ibpd, qp); 1110e126ba97SEli Cohen } 1111e126ba97SEli Cohen 1112e126ba97SEli Cohen static const char *ib_qp_type_str(enum ib_qp_type type) 1113e126ba97SEli Cohen { 1114e126ba97SEli Cohen switch (type) { 1115e126ba97SEli Cohen case IB_QPT_SMI: 1116e126ba97SEli Cohen return "IB_QPT_SMI"; 1117e126ba97SEli Cohen case IB_QPT_GSI: 1118e126ba97SEli Cohen return "IB_QPT_GSI"; 1119e126ba97SEli Cohen case IB_QPT_RC: 1120e126ba97SEli Cohen return "IB_QPT_RC"; 1121e126ba97SEli Cohen case IB_QPT_UC: 1122e126ba97SEli Cohen return "IB_QPT_UC"; 1123e126ba97SEli Cohen case IB_QPT_UD: 1124e126ba97SEli Cohen return "IB_QPT_UD"; 1125e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1126e126ba97SEli Cohen return "IB_QPT_RAW_IPV6"; 1127e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1128e126ba97SEli Cohen return "IB_QPT_RAW_ETHERTYPE"; 1129e126ba97SEli Cohen case IB_QPT_XRC_INI: 1130e126ba97SEli Cohen return "IB_QPT_XRC_INI"; 1131e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1132e126ba97SEli Cohen return "IB_QPT_XRC_TGT"; 1133e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1134e126ba97SEli Cohen return "IB_QPT_RAW_PACKET"; 1135e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1136e126ba97SEli Cohen return "MLX5_IB_QPT_REG_UMR"; 1137e126ba97SEli Cohen case IB_QPT_MAX: 1138e126ba97SEli Cohen default: 1139e126ba97SEli Cohen return "Invalid QP type"; 1140e126ba97SEli Cohen } 1141e126ba97SEli Cohen } 1142e126ba97SEli Cohen 1143e126ba97SEli Cohen struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1144e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1145e126ba97SEli Cohen struct ib_udata *udata) 1146e126ba97SEli Cohen { 1147e126ba97SEli Cohen struct mlx5_ib_dev *dev; 1148e126ba97SEli Cohen struct mlx5_ib_qp *qp; 1149e126ba97SEli Cohen u16 xrcdn = 0; 1150e126ba97SEli Cohen int err; 1151e126ba97SEli Cohen 1152e126ba97SEli Cohen if (pd) { 1153e126ba97SEli Cohen dev = to_mdev(pd->device); 1154e126ba97SEli Cohen } else { 1155e126ba97SEli Cohen /* being cautious here */ 1156e126ba97SEli Cohen if (init_attr->qp_type != IB_QPT_XRC_TGT && 1157e126ba97SEli Cohen init_attr->qp_type != MLX5_IB_QPT_REG_UMR) { 1158e126ba97SEli Cohen pr_warn("%s: no PD for transport %s\n", __func__, 1159e126ba97SEli Cohen ib_qp_type_str(init_attr->qp_type)); 1160e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1161e126ba97SEli Cohen } 1162e126ba97SEli Cohen dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device); 1163e126ba97SEli Cohen } 1164e126ba97SEli Cohen 1165e126ba97SEli Cohen switch (init_attr->qp_type) { 1166e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1167e126ba97SEli Cohen case IB_QPT_XRC_INI: 11689603b61dSJack Morgenstein if (!(dev->mdev->caps.flags & MLX5_DEV_CAP_FLAG_XRC)) { 1169e126ba97SEli Cohen mlx5_ib_dbg(dev, "XRC not supported\n"); 1170e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 1171e126ba97SEli Cohen } 1172e126ba97SEli Cohen init_attr->recv_cq = NULL; 1173e126ba97SEli Cohen if (init_attr->qp_type == IB_QPT_XRC_TGT) { 1174e126ba97SEli Cohen xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn; 1175e126ba97SEli Cohen init_attr->send_cq = NULL; 1176e126ba97SEli Cohen } 1177e126ba97SEli Cohen 1178e126ba97SEli Cohen /* fall through */ 1179e126ba97SEli Cohen case IB_QPT_RC: 1180e126ba97SEli Cohen case IB_QPT_UC: 1181e126ba97SEli Cohen case IB_QPT_UD: 1182e126ba97SEli Cohen case IB_QPT_SMI: 1183e126ba97SEli Cohen case IB_QPT_GSI: 1184e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1185e126ba97SEli Cohen qp = kzalloc(sizeof(*qp), GFP_KERNEL); 1186e126ba97SEli Cohen if (!qp) 1187e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 1188e126ba97SEli Cohen 1189e126ba97SEli Cohen err = create_qp_common(dev, pd, init_attr, udata, qp); 1190e126ba97SEli Cohen if (err) { 1191e126ba97SEli Cohen mlx5_ib_dbg(dev, "create_qp_common failed\n"); 1192e126ba97SEli Cohen kfree(qp); 1193e126ba97SEli Cohen return ERR_PTR(err); 1194e126ba97SEli Cohen } 1195e126ba97SEli Cohen 1196e126ba97SEli Cohen if (is_qp0(init_attr->qp_type)) 1197e126ba97SEli Cohen qp->ibqp.qp_num = 0; 1198e126ba97SEli Cohen else if (is_qp1(init_attr->qp_type)) 1199e126ba97SEli Cohen qp->ibqp.qp_num = 1; 1200e126ba97SEli Cohen else 1201e126ba97SEli Cohen qp->ibqp.qp_num = qp->mqp.qpn; 1202e126ba97SEli Cohen 1203e126ba97SEli Cohen mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", 1204e126ba97SEli Cohen qp->ibqp.qp_num, qp->mqp.qpn, to_mcq(init_attr->recv_cq)->mcq.cqn, 1205e126ba97SEli Cohen to_mcq(init_attr->send_cq)->mcq.cqn); 1206e126ba97SEli Cohen 1207e126ba97SEli Cohen qp->xrcdn = xrcdn; 1208e126ba97SEli Cohen 1209e126ba97SEli Cohen break; 1210e126ba97SEli Cohen 1211e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1212e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1213e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1214e126ba97SEli Cohen case IB_QPT_MAX: 1215e126ba97SEli Cohen default: 1216e126ba97SEli Cohen mlx5_ib_dbg(dev, "unsupported qp type %d\n", 1217e126ba97SEli Cohen init_attr->qp_type); 1218e126ba97SEli Cohen /* Don't support raw QPs */ 1219e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1220e126ba97SEli Cohen } 1221e126ba97SEli Cohen 1222e126ba97SEli Cohen return &qp->ibqp; 1223e126ba97SEli Cohen } 1224e126ba97SEli Cohen 1225e126ba97SEli Cohen int mlx5_ib_destroy_qp(struct ib_qp *qp) 1226e126ba97SEli Cohen { 1227e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(qp->device); 1228e126ba97SEli Cohen struct mlx5_ib_qp *mqp = to_mqp(qp); 1229e126ba97SEli Cohen 1230e126ba97SEli Cohen destroy_qp_common(dev, mqp); 1231e126ba97SEli Cohen 1232e126ba97SEli Cohen kfree(mqp); 1233e126ba97SEli Cohen 1234e126ba97SEli Cohen return 0; 1235e126ba97SEli Cohen } 1236e126ba97SEli Cohen 1237e126ba97SEli Cohen static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr, 1238e126ba97SEli Cohen int attr_mask) 1239e126ba97SEli Cohen { 1240e126ba97SEli Cohen u32 hw_access_flags = 0; 1241e126ba97SEli Cohen u8 dest_rd_atomic; 1242e126ba97SEli Cohen u32 access_flags; 1243e126ba97SEli Cohen 1244e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1245e126ba97SEli Cohen dest_rd_atomic = attr->max_dest_rd_atomic; 1246e126ba97SEli Cohen else 1247e126ba97SEli Cohen dest_rd_atomic = qp->resp_depth; 1248e126ba97SEli Cohen 1249e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1250e126ba97SEli Cohen access_flags = attr->qp_access_flags; 1251e126ba97SEli Cohen else 1252e126ba97SEli Cohen access_flags = qp->atomic_rd_en; 1253e126ba97SEli Cohen 1254e126ba97SEli Cohen if (!dest_rd_atomic) 1255e126ba97SEli Cohen access_flags &= IB_ACCESS_REMOTE_WRITE; 1256e126ba97SEli Cohen 1257e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_READ) 1258e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RRE; 1259e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_ATOMIC) 1260e126ba97SEli Cohen hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX); 1261e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_WRITE) 1262e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RWE; 1263e126ba97SEli Cohen 1264e126ba97SEli Cohen return cpu_to_be32(hw_access_flags); 1265e126ba97SEli Cohen } 1266e126ba97SEli Cohen 1267e126ba97SEli Cohen enum { 1268e126ba97SEli Cohen MLX5_PATH_FLAG_FL = 1 << 0, 1269e126ba97SEli Cohen MLX5_PATH_FLAG_FREE_AR = 1 << 1, 1270e126ba97SEli Cohen MLX5_PATH_FLAG_COUNTER = 1 << 2, 1271e126ba97SEli Cohen }; 1272e126ba97SEli Cohen 1273e126ba97SEli Cohen static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) 1274e126ba97SEli Cohen { 1275e126ba97SEli Cohen if (rate == IB_RATE_PORT_CURRENT) { 1276e126ba97SEli Cohen return 0; 1277e126ba97SEli Cohen } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) { 1278e126ba97SEli Cohen return -EINVAL; 1279e126ba97SEli Cohen } else { 1280e126ba97SEli Cohen while (rate != IB_RATE_2_5_GBPS && 1281e126ba97SEli Cohen !(1 << (rate + MLX5_STAT_RATE_OFFSET) & 12829603b61dSJack Morgenstein dev->mdev->caps.stat_rate_support)) 1283e126ba97SEli Cohen --rate; 1284e126ba97SEli Cohen } 1285e126ba97SEli Cohen 1286e126ba97SEli Cohen return rate + MLX5_STAT_RATE_OFFSET; 1287e126ba97SEli Cohen } 1288e126ba97SEli Cohen 1289e126ba97SEli Cohen static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah, 1290e126ba97SEli Cohen struct mlx5_qp_path *path, u8 port, int attr_mask, 1291e126ba97SEli Cohen u32 path_flags, const struct ib_qp_attr *attr) 1292e126ba97SEli Cohen { 1293e126ba97SEli Cohen int err; 1294e126ba97SEli Cohen 1295e126ba97SEli Cohen path->fl = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0; 1296e126ba97SEli Cohen path->free_ar = (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x80 : 0; 1297e126ba97SEli Cohen 1298e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1299e126ba97SEli Cohen path->pkey_index = attr->pkey_index; 1300e126ba97SEli Cohen 1301e126ba97SEli Cohen path->grh_mlid = ah->src_path_bits & 0x7f; 1302e126ba97SEli Cohen path->rlid = cpu_to_be16(ah->dlid); 1303e126ba97SEli Cohen 1304e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 1305e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 1306e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1307e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1308e126ba97SEli Cohen path->tclass_flowlabel = 1309e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1310e126ba97SEli Cohen (ah->grh.flow_label)); 1311e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1312e126ba97SEli Cohen } 1313e126ba97SEli Cohen 1314e126ba97SEli Cohen err = ib_rate_to_mlx5(dev, ah->static_rate); 1315e126ba97SEli Cohen if (err < 0) 1316e126ba97SEli Cohen return err; 1317e126ba97SEli Cohen path->static_rate = err; 1318e126ba97SEli Cohen path->port = port; 1319e126ba97SEli Cohen 1320e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 13219603b61dSJack Morgenstein if (ah->grh.sgid_index >= dev->mdev->caps.port[port - 1].gid_table_len) { 1322e126ba97SEli Cohen pr_err(KERN_ERR "sgid_index (%u) too large. max is %d\n", 13239603b61dSJack Morgenstein ah->grh.sgid_index, dev->mdev->caps.port[port - 1].gid_table_len); 1324e126ba97SEli Cohen return -EINVAL; 1325e126ba97SEli Cohen } 1326e126ba97SEli Cohen 1327e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 1328e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1329e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1330e126ba97SEli Cohen path->tclass_flowlabel = 1331e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1332e126ba97SEli Cohen (ah->grh.flow_label)); 1333e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1334e126ba97SEli Cohen } 1335e126ba97SEli Cohen 1336e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1337e126ba97SEli Cohen path->ackto_lt = attr->timeout << 3; 1338e126ba97SEli Cohen 1339e126ba97SEli Cohen path->sl = ah->sl & 0xf; 1340e126ba97SEli Cohen 1341e126ba97SEli Cohen return 0; 1342e126ba97SEli Cohen } 1343e126ba97SEli Cohen 1344e126ba97SEli Cohen static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = { 1345e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1346e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1347e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1348e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1349e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1350e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1351e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1352e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1353e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1354e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1355e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1356e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY | 1357e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1358e126ba97SEli Cohen }, 1359e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1360e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1361e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1362e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1363e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1364e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1365e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1366e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1367e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1368e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1369e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1370e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | 1371e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1372a4774e90SEli Cohen [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1373a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE | 1374a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1375a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1376a4774e90SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1377e126ba97SEli Cohen }, 1378e126ba97SEli Cohen }, 1379e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1380e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1381e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1382e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1383e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1384e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1385e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1386e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT, 1387e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1388e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1389e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1390e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1391e126ba97SEli Cohen }, 1392e126ba97SEli Cohen }, 1393e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1394e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1395e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1396e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1397e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1398e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT | 1399c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1400c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1401e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1402c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1403c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1404e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | 1405e126ba97SEli Cohen MLX5_QP_OPTPAR_SRQN | 1406e126ba97SEli Cohen MLX5_QP_OPTPAR_CQN_RCV, 1407e126ba97SEli Cohen }, 1408e126ba97SEli Cohen }, 1409e126ba97SEli Cohen [MLX5_QP_STATE_SQER] = { 1410e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1411e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1412e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, 141375959f56SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE, 1414a4774e90SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT | 1415a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1416a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1417a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE, 1418e126ba97SEli Cohen }, 1419e126ba97SEli Cohen }, 1420e126ba97SEli Cohen }; 1421e126ba97SEli Cohen 1422e126ba97SEli Cohen static int ib_nr_to_mlx5_nr(int ib_mask) 1423e126ba97SEli Cohen { 1424e126ba97SEli Cohen switch (ib_mask) { 1425e126ba97SEli Cohen case IB_QP_STATE: 1426e126ba97SEli Cohen return 0; 1427e126ba97SEli Cohen case IB_QP_CUR_STATE: 1428e126ba97SEli Cohen return 0; 1429e126ba97SEli Cohen case IB_QP_EN_SQD_ASYNC_NOTIFY: 1430e126ba97SEli Cohen return 0; 1431e126ba97SEli Cohen case IB_QP_ACCESS_FLAGS: 1432e126ba97SEli Cohen return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE | 1433e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE; 1434e126ba97SEli Cohen case IB_QP_PKEY_INDEX: 1435e126ba97SEli Cohen return MLX5_QP_OPTPAR_PKEY_INDEX; 1436e126ba97SEli Cohen case IB_QP_PORT: 1437e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRI_PORT; 1438e126ba97SEli Cohen case IB_QP_QKEY: 1439e126ba97SEli Cohen return MLX5_QP_OPTPAR_Q_KEY; 1440e126ba97SEli Cohen case IB_QP_AV: 1441e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH | 1442e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT; 1443e126ba97SEli Cohen case IB_QP_PATH_MTU: 1444e126ba97SEli Cohen return 0; 1445e126ba97SEli Cohen case IB_QP_TIMEOUT: 1446e126ba97SEli Cohen return MLX5_QP_OPTPAR_ACK_TIMEOUT; 1447e126ba97SEli Cohen case IB_QP_RETRY_CNT: 1448e126ba97SEli Cohen return MLX5_QP_OPTPAR_RETRY_COUNT; 1449e126ba97SEli Cohen case IB_QP_RNR_RETRY: 1450e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_RETRY; 1451e126ba97SEli Cohen case IB_QP_RQ_PSN: 1452e126ba97SEli Cohen return 0; 1453e126ba97SEli Cohen case IB_QP_MAX_QP_RD_ATOMIC: 1454e126ba97SEli Cohen return MLX5_QP_OPTPAR_SRA_MAX; 1455e126ba97SEli Cohen case IB_QP_ALT_PATH: 1456e126ba97SEli Cohen return MLX5_QP_OPTPAR_ALT_ADDR_PATH; 1457e126ba97SEli Cohen case IB_QP_MIN_RNR_TIMER: 1458e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_TIMEOUT; 1459e126ba97SEli Cohen case IB_QP_SQ_PSN: 1460e126ba97SEli Cohen return 0; 1461e126ba97SEli Cohen case IB_QP_MAX_DEST_RD_ATOMIC: 1462e126ba97SEli Cohen return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE | 1463e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE; 1464e126ba97SEli Cohen case IB_QP_PATH_MIG_STATE: 1465e126ba97SEli Cohen return MLX5_QP_OPTPAR_PM_STATE; 1466e126ba97SEli Cohen case IB_QP_CAP: 1467e126ba97SEli Cohen return 0; 1468e126ba97SEli Cohen case IB_QP_DEST_QPN: 1469e126ba97SEli Cohen return 0; 1470e126ba97SEli Cohen } 1471e126ba97SEli Cohen return 0; 1472e126ba97SEli Cohen } 1473e126ba97SEli Cohen 1474e126ba97SEli Cohen static int ib_mask_to_mlx5_opt(int ib_mask) 1475e126ba97SEli Cohen { 1476e126ba97SEli Cohen int result = 0; 1477e126ba97SEli Cohen int i; 1478e126ba97SEli Cohen 1479e126ba97SEli Cohen for (i = 0; i < 8 * sizeof(int); i++) { 1480e126ba97SEli Cohen if ((1 << i) & ib_mask) 1481e126ba97SEli Cohen result |= ib_nr_to_mlx5_nr(1 << i); 1482e126ba97SEli Cohen } 1483e126ba97SEli Cohen 1484e126ba97SEli Cohen return result; 1485e126ba97SEli Cohen } 1486e126ba97SEli Cohen 1487e126ba97SEli Cohen static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, 1488e126ba97SEli Cohen const struct ib_qp_attr *attr, int attr_mask, 1489e126ba97SEli Cohen enum ib_qp_state cur_state, enum ib_qp_state new_state) 1490e126ba97SEli Cohen { 1491e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1492e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1493e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1494e126ba97SEli Cohen struct mlx5_qp_context *context; 1495e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1496e126ba97SEli Cohen struct mlx5_ib_pd *pd; 1497e126ba97SEli Cohen enum mlx5_qp_state mlx5_cur, mlx5_new; 1498e126ba97SEli Cohen enum mlx5_qp_optpar optpar; 1499e126ba97SEli Cohen int sqd_event; 1500e126ba97SEli Cohen int mlx5_st; 1501e126ba97SEli Cohen int err; 1502e126ba97SEli Cohen 1503e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1504e126ba97SEli Cohen if (!in) 1505e126ba97SEli Cohen return -ENOMEM; 1506e126ba97SEli Cohen 1507e126ba97SEli Cohen context = &in->ctx; 1508e126ba97SEli Cohen err = to_mlx5_st(ibqp->qp_type); 1509e126ba97SEli Cohen if (err < 0) 1510e126ba97SEli Cohen goto out; 1511e126ba97SEli Cohen 1512e126ba97SEli Cohen context->flags = cpu_to_be32(err << 16); 1513e126ba97SEli Cohen 1514e126ba97SEli Cohen if (!(attr_mask & IB_QP_PATH_MIG_STATE)) { 1515e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1516e126ba97SEli Cohen } else { 1517e126ba97SEli Cohen switch (attr->path_mig_state) { 1518e126ba97SEli Cohen case IB_MIG_MIGRATED: 1519e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1520e126ba97SEli Cohen break; 1521e126ba97SEli Cohen case IB_MIG_REARM: 1522e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11); 1523e126ba97SEli Cohen break; 1524e126ba97SEli Cohen case IB_MIG_ARMED: 1525e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11); 1526e126ba97SEli Cohen break; 1527e126ba97SEli Cohen } 1528e126ba97SEli Cohen } 1529e126ba97SEli Cohen 1530e126ba97SEli Cohen if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { 1531e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_256 << 5) | 8; 1532e126ba97SEli Cohen } else if (ibqp->qp_type == IB_QPT_UD || 1533e126ba97SEli Cohen ibqp->qp_type == MLX5_IB_QPT_REG_UMR) { 1534e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_4096 << 5) | 12; 1535e126ba97SEli Cohen } else if (attr_mask & IB_QP_PATH_MTU) { 1536e126ba97SEli Cohen if (attr->path_mtu < IB_MTU_256 || 1537e126ba97SEli Cohen attr->path_mtu > IB_MTU_4096) { 1538e126ba97SEli Cohen mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu); 1539e126ba97SEli Cohen err = -EINVAL; 1540e126ba97SEli Cohen goto out; 1541e126ba97SEli Cohen } 15429603b61dSJack Morgenstein context->mtu_msgmax = (attr->path_mtu << 5) | dev->mdev->caps.log_max_msg; 1543e126ba97SEli Cohen } 1544e126ba97SEli Cohen 1545e126ba97SEli Cohen if (attr_mask & IB_QP_DEST_QPN) 1546e126ba97SEli Cohen context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num); 1547e126ba97SEli Cohen 1548e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1549e126ba97SEli Cohen context->pri_path.pkey_index = attr->pkey_index; 1550e126ba97SEli Cohen 1551e126ba97SEli Cohen /* todo implement counter_index functionality */ 1552e126ba97SEli Cohen 1553e126ba97SEli Cohen if (is_sqp(ibqp->qp_type)) 1554e126ba97SEli Cohen context->pri_path.port = qp->port; 1555e126ba97SEli Cohen 1556e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1557e126ba97SEli Cohen context->pri_path.port = attr->port_num; 1558e126ba97SEli Cohen 1559e126ba97SEli Cohen if (attr_mask & IB_QP_AV) { 1560e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path, 1561e126ba97SEli Cohen attr_mask & IB_QP_PORT ? attr->port_num : qp->port, 1562e126ba97SEli Cohen attr_mask, 0, attr); 1563e126ba97SEli Cohen if (err) 1564e126ba97SEli Cohen goto out; 1565e126ba97SEli Cohen } 1566e126ba97SEli Cohen 1567e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1568e126ba97SEli Cohen context->pri_path.ackto_lt |= attr->timeout << 3; 1569e126ba97SEli Cohen 1570e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) { 1571e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path, 1572e126ba97SEli Cohen attr->alt_port_num, attr_mask, 0, attr); 1573e126ba97SEli Cohen if (err) 1574e126ba97SEli Cohen goto out; 1575e126ba97SEli Cohen } 1576e126ba97SEli Cohen 1577e126ba97SEli Cohen pd = get_pd(qp); 1578e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1579e126ba97SEli Cohen 1580e126ba97SEli Cohen context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn); 1581e126ba97SEli Cohen context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0; 1582e126ba97SEli Cohen context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0; 1583e126ba97SEli Cohen context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28); 1584e126ba97SEli Cohen 1585e126ba97SEli Cohen if (attr_mask & IB_QP_RNR_RETRY) 1586e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->rnr_retry << 13); 1587e126ba97SEli Cohen 1588e126ba97SEli Cohen if (attr_mask & IB_QP_RETRY_CNT) 1589e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->retry_cnt << 16); 1590e126ba97SEli Cohen 1591e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 1592e126ba97SEli Cohen if (attr->max_rd_atomic) 1593e126ba97SEli Cohen context->params1 |= 1594e126ba97SEli Cohen cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); 1595e126ba97SEli Cohen } 1596e126ba97SEli Cohen 1597e126ba97SEli Cohen if (attr_mask & IB_QP_SQ_PSN) 1598e126ba97SEli Cohen context->next_send_psn = cpu_to_be32(attr->sq_psn); 1599e126ba97SEli Cohen 1600e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 1601e126ba97SEli Cohen if (attr->max_dest_rd_atomic) 1602e126ba97SEli Cohen context->params2 |= 1603e126ba97SEli Cohen cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21); 1604e126ba97SEli Cohen } 1605e126ba97SEli Cohen 1606e126ba97SEli Cohen if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) 1607e126ba97SEli Cohen context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask); 1608e126ba97SEli Cohen 1609e126ba97SEli Cohen if (attr_mask & IB_QP_MIN_RNR_TIMER) 1610e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24); 1611e126ba97SEli Cohen 1612e126ba97SEli Cohen if (attr_mask & IB_QP_RQ_PSN) 1613e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn); 1614e126ba97SEli Cohen 1615e126ba97SEli Cohen if (attr_mask & IB_QP_QKEY) 1616e126ba97SEli Cohen context->qkey = cpu_to_be32(attr->qkey); 1617e126ba97SEli Cohen 1618e126ba97SEli Cohen if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1619e126ba97SEli Cohen context->db_rec_addr = cpu_to_be64(qp->db.dma); 1620e126ba97SEli Cohen 1621e126ba97SEli Cohen if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && 1622e126ba97SEli Cohen attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify) 1623e126ba97SEli Cohen sqd_event = 1; 1624e126ba97SEli Cohen else 1625e126ba97SEli Cohen sqd_event = 0; 1626e126ba97SEli Cohen 1627e126ba97SEli Cohen if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1628e126ba97SEli Cohen context->sq_crq_size |= cpu_to_be16(1 << 4); 1629e126ba97SEli Cohen 1630e126ba97SEli Cohen 1631e126ba97SEli Cohen mlx5_cur = to_mlx5_state(cur_state); 1632e126ba97SEli Cohen mlx5_new = to_mlx5_state(new_state); 1633e126ba97SEli Cohen mlx5_st = to_mlx5_st(ibqp->qp_type); 163407c9113fSEli Cohen if (mlx5_st < 0) 1635e126ba97SEli Cohen goto out; 1636e126ba97SEli Cohen 1637e126ba97SEli Cohen optpar = ib_mask_to_mlx5_opt(attr_mask); 1638e126ba97SEli Cohen optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st]; 1639e126ba97SEli Cohen in->optparam = cpu_to_be32(optpar); 16409603b61dSJack Morgenstein err = mlx5_core_qp_modify(dev->mdev, to_mlx5_state(cur_state), 1641e126ba97SEli Cohen to_mlx5_state(new_state), in, sqd_event, 1642e126ba97SEli Cohen &qp->mqp); 1643e126ba97SEli Cohen if (err) 1644e126ba97SEli Cohen goto out; 1645e126ba97SEli Cohen 1646e126ba97SEli Cohen qp->state = new_state; 1647e126ba97SEli Cohen 1648e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1649e126ba97SEli Cohen qp->atomic_rd_en = attr->qp_access_flags; 1650e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1651e126ba97SEli Cohen qp->resp_depth = attr->max_dest_rd_atomic; 1652e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1653e126ba97SEli Cohen qp->port = attr->port_num; 1654e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) 1655e126ba97SEli Cohen qp->alt_port = attr->alt_port_num; 1656e126ba97SEli Cohen 1657e126ba97SEli Cohen /* 1658e126ba97SEli Cohen * If we moved a kernel QP to RESET, clean up all old CQ 1659e126ba97SEli Cohen * entries and reinitialize the QP. 1660e126ba97SEli Cohen */ 1661e126ba97SEli Cohen if (new_state == IB_QPS_RESET && !ibqp->uobject) { 1662e126ba97SEli Cohen mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1663e126ba97SEli Cohen ibqp->srq ? to_msrq(ibqp->srq) : NULL); 1664e126ba97SEli Cohen if (send_cq != recv_cq) 1665e126ba97SEli Cohen mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1666e126ba97SEli Cohen 1667e126ba97SEli Cohen qp->rq.head = 0; 1668e126ba97SEli Cohen qp->rq.tail = 0; 1669e126ba97SEli Cohen qp->sq.head = 0; 1670e126ba97SEli Cohen qp->sq.tail = 0; 1671e126ba97SEli Cohen qp->sq.cur_post = 0; 1672e126ba97SEli Cohen qp->sq.last_poll = 0; 1673e126ba97SEli Cohen qp->db.db[MLX5_RCV_DBR] = 0; 1674e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = 0; 1675e126ba97SEli Cohen } 1676e126ba97SEli Cohen 1677e126ba97SEli Cohen out: 1678e126ba97SEli Cohen kfree(in); 1679e126ba97SEli Cohen return err; 1680e126ba97SEli Cohen } 1681e126ba97SEli Cohen 1682e126ba97SEli Cohen int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1683e126ba97SEli Cohen int attr_mask, struct ib_udata *udata) 1684e126ba97SEli Cohen { 1685e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1686e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1687e126ba97SEli Cohen enum ib_qp_state cur_state, new_state; 1688e126ba97SEli Cohen int err = -EINVAL; 1689e126ba97SEli Cohen int port; 1690e126ba97SEli Cohen 1691e126ba97SEli Cohen mutex_lock(&qp->mutex); 1692e126ba97SEli Cohen 1693e126ba97SEli Cohen cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state; 1694e126ba97SEli Cohen new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state; 1695e126ba97SEli Cohen 1696e126ba97SEli Cohen if (ibqp->qp_type != MLX5_IB_QPT_REG_UMR && 1697dd5f03beSMatan Barak !ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask, 1698dd5f03beSMatan Barak IB_LINK_LAYER_UNSPECIFIED)) 1699e126ba97SEli Cohen goto out; 1700e126ba97SEli Cohen 1701e126ba97SEli Cohen if ((attr_mask & IB_QP_PORT) && 17029603b61dSJack Morgenstein (attr->port_num == 0 || attr->port_num > dev->mdev->caps.num_ports)) 1703e126ba97SEli Cohen goto out; 1704e126ba97SEli Cohen 1705e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) { 1706e126ba97SEli Cohen port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 17079603b61dSJack Morgenstein if (attr->pkey_index >= dev->mdev->caps.port[port - 1].pkey_table_len) 1708e126ba97SEli Cohen goto out; 1709e126ba97SEli Cohen } 1710e126ba97SEli Cohen 1711e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && 17129603b61dSJack Morgenstein attr->max_rd_atomic > dev->mdev->caps.max_ra_res_qp) 1713e126ba97SEli Cohen goto out; 1714e126ba97SEli Cohen 1715e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && 17169603b61dSJack Morgenstein attr->max_dest_rd_atomic > dev->mdev->caps.max_ra_req_qp) 1717e126ba97SEli Cohen goto out; 1718e126ba97SEli Cohen 1719e126ba97SEli Cohen if (cur_state == new_state && cur_state == IB_QPS_RESET) { 1720e126ba97SEli Cohen err = 0; 1721e126ba97SEli Cohen goto out; 1722e126ba97SEli Cohen } 1723e126ba97SEli Cohen 1724e126ba97SEli Cohen err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state); 1725e126ba97SEli Cohen 1726e126ba97SEli Cohen out: 1727e126ba97SEli Cohen mutex_unlock(&qp->mutex); 1728e126ba97SEli Cohen return err; 1729e126ba97SEli Cohen } 1730e126ba97SEli Cohen 1731e126ba97SEli Cohen static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq) 1732e126ba97SEli Cohen { 1733e126ba97SEli Cohen struct mlx5_ib_cq *cq; 1734e126ba97SEli Cohen unsigned cur; 1735e126ba97SEli Cohen 1736e126ba97SEli Cohen cur = wq->head - wq->tail; 1737e126ba97SEli Cohen if (likely(cur + nreq < wq->max_post)) 1738e126ba97SEli Cohen return 0; 1739e126ba97SEli Cohen 1740e126ba97SEli Cohen cq = to_mcq(ib_cq); 1741e126ba97SEli Cohen spin_lock(&cq->lock); 1742e126ba97SEli Cohen cur = wq->head - wq->tail; 1743e126ba97SEli Cohen spin_unlock(&cq->lock); 1744e126ba97SEli Cohen 1745e126ba97SEli Cohen return cur + nreq >= wq->max_post; 1746e126ba97SEli Cohen } 1747e126ba97SEli Cohen 1748e126ba97SEli Cohen static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, 1749e126ba97SEli Cohen u64 remote_addr, u32 rkey) 1750e126ba97SEli Cohen { 1751e126ba97SEli Cohen rseg->raddr = cpu_to_be64(remote_addr); 1752e126ba97SEli Cohen rseg->rkey = cpu_to_be32(rkey); 1753e126ba97SEli Cohen rseg->reserved = 0; 1754e126ba97SEli Cohen } 1755e126ba97SEli Cohen 1756e126ba97SEli Cohen static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, 1757e126ba97SEli Cohen struct ib_send_wr *wr) 1758e126ba97SEli Cohen { 1759e126ba97SEli Cohen memcpy(&dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof(struct mlx5_av)); 1760e126ba97SEli Cohen dseg->av.dqp_dct = cpu_to_be32(wr->wr.ud.remote_qpn | MLX5_EXTENDED_UD_AV); 1761e126ba97SEli Cohen dseg->av.key.qkey.qkey = cpu_to_be32(wr->wr.ud.remote_qkey); 1762e126ba97SEli Cohen } 1763e126ba97SEli Cohen 1764e126ba97SEli Cohen static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg) 1765e126ba97SEli Cohen { 1766e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(sg->length); 1767e126ba97SEli Cohen dseg->lkey = cpu_to_be32(sg->lkey); 1768e126ba97SEli Cohen dseg->addr = cpu_to_be64(sg->addr); 1769e126ba97SEli Cohen } 1770e126ba97SEli Cohen 1771e126ba97SEli Cohen static __be16 get_klm_octo(int npages) 1772e126ba97SEli Cohen { 1773e126ba97SEli Cohen return cpu_to_be16(ALIGN(npages, 8) / 2); 1774e126ba97SEli Cohen } 1775e126ba97SEli Cohen 1776e126ba97SEli Cohen static __be64 frwr_mkey_mask(void) 1777e126ba97SEli Cohen { 1778e126ba97SEli Cohen u64 result; 1779e126ba97SEli Cohen 1780e126ba97SEli Cohen result = MLX5_MKEY_MASK_LEN | 1781e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1782e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1783e126ba97SEli Cohen MLX5_MKEY_MASK_EN_RINVAL | 1784e126ba97SEli Cohen MLX5_MKEY_MASK_KEY | 1785e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1786e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1787e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1788e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1789e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1790e126ba97SEli Cohen MLX5_MKEY_MASK_SMALL_FENCE | 1791e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1792e126ba97SEli Cohen 1793e126ba97SEli Cohen return cpu_to_be64(result); 1794e126ba97SEli Cohen } 1795e126ba97SEli Cohen 1796e6631814SSagi Grimberg static __be64 sig_mkey_mask(void) 1797e6631814SSagi Grimberg { 1798e6631814SSagi Grimberg u64 result; 1799e6631814SSagi Grimberg 1800e6631814SSagi Grimberg result = MLX5_MKEY_MASK_LEN | 1801e6631814SSagi Grimberg MLX5_MKEY_MASK_PAGE_SIZE | 1802e6631814SSagi Grimberg MLX5_MKEY_MASK_START_ADDR | 1803d5436ba0SSagi Grimberg MLX5_MKEY_MASK_EN_SIGERR | 1804e6631814SSagi Grimberg MLX5_MKEY_MASK_EN_RINVAL | 1805e6631814SSagi Grimberg MLX5_MKEY_MASK_KEY | 1806e6631814SSagi Grimberg MLX5_MKEY_MASK_LR | 1807e6631814SSagi Grimberg MLX5_MKEY_MASK_LW | 1808e6631814SSagi Grimberg MLX5_MKEY_MASK_RR | 1809e6631814SSagi Grimberg MLX5_MKEY_MASK_RW | 1810e6631814SSagi Grimberg MLX5_MKEY_MASK_SMALL_FENCE | 1811e6631814SSagi Grimberg MLX5_MKEY_MASK_FREE | 1812e6631814SSagi Grimberg MLX5_MKEY_MASK_BSF_EN; 1813e6631814SSagi Grimberg 1814e6631814SSagi Grimberg return cpu_to_be64(result); 1815e6631814SSagi Grimberg } 1816e6631814SSagi Grimberg 1817e126ba97SEli Cohen static void set_frwr_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1818e126ba97SEli Cohen struct ib_send_wr *wr, int li) 1819e126ba97SEli Cohen { 1820e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1821e126ba97SEli Cohen 1822e126ba97SEli Cohen if (li) { 1823e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); 1824e126ba97SEli Cohen umr->flags = 1 << 7; 1825e126ba97SEli Cohen return; 1826e126ba97SEli Cohen } 1827e126ba97SEli Cohen 1828e126ba97SEli Cohen umr->flags = (1 << 5); /* fail if not free */ 1829e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(wr->wr.fast_reg.page_list_len); 1830e126ba97SEli Cohen umr->mkey_mask = frwr_mkey_mask(); 1831e126ba97SEli Cohen } 1832e126ba97SEli Cohen 1833e126ba97SEli Cohen static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1834e126ba97SEli Cohen struct ib_send_wr *wr) 1835e126ba97SEli Cohen { 1836e126ba97SEli Cohen struct umr_wr *umrwr = (struct umr_wr *)&wr->wr.fast_reg; 1837e126ba97SEli Cohen u64 mask; 1838e126ba97SEli Cohen 1839e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1840e126ba97SEli Cohen 1841e126ba97SEli Cohen if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) { 1842e126ba97SEli Cohen umr->flags = 1 << 5; /* fail if not free */ 1843e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(umrwr->npages); 1844e126ba97SEli Cohen mask = MLX5_MKEY_MASK_LEN | 1845e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1846e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1847e126ba97SEli Cohen MLX5_MKEY_MASK_PD | 1848e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1849e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1850746b5583SEli Cohen MLX5_MKEY_MASK_KEY | 1851e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1852e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1853e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1854e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1855e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(mask); 1856e126ba97SEli Cohen } else { 1857e126ba97SEli Cohen umr->flags = 2 << 5; /* fail if free */ 1858e126ba97SEli Cohen mask = MLX5_MKEY_MASK_FREE; 1859e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(mask); 1860e126ba97SEli Cohen } 1861e126ba97SEli Cohen 1862e126ba97SEli Cohen if (!wr->num_sge) 1863e126ba97SEli Cohen umr->flags |= (1 << 7); /* inline */ 1864e126ba97SEli Cohen } 1865e126ba97SEli Cohen 1866e126ba97SEli Cohen static u8 get_umr_flags(int acc) 1867e126ba97SEli Cohen { 1868e126ba97SEli Cohen return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 1869e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 1870e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 1871e126ba97SEli Cohen (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 18722ac45934SSagi Grimberg MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN; 1873e126ba97SEli Cohen } 1874e126ba97SEli Cohen 1875e126ba97SEli Cohen static void set_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr, 1876e126ba97SEli Cohen int li, int *writ) 1877e126ba97SEli Cohen { 1878e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 1879e126ba97SEli Cohen if (li) { 1880e126ba97SEli Cohen seg->status = 1 << 6; 1881e126ba97SEli Cohen return; 1882e126ba97SEli Cohen } 1883e126ba97SEli Cohen 18842ac45934SSagi Grimberg seg->flags = get_umr_flags(wr->wr.fast_reg.access_flags) | 18852ac45934SSagi Grimberg MLX5_ACCESS_MODE_MTT; 1886e126ba97SEli Cohen *writ = seg->flags & (MLX5_PERM_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE); 1887e126ba97SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32((wr->wr.fast_reg.rkey & 0xff) | 0xffffff00); 1888e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL); 1889e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 1890e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 1891e126ba97SEli Cohen seg->xlt_oct_size = cpu_to_be32((wr->wr.fast_reg.page_list_len + 1) / 2); 1892e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 1893e126ba97SEli Cohen } 1894e126ba97SEli Cohen 1895e126ba97SEli Cohen static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr) 1896e126ba97SEli Cohen { 1897e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 1898e126ba97SEli Cohen if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) { 1899e126ba97SEli Cohen seg->status = 1 << 6; 1900e126ba97SEli Cohen return; 1901e126ba97SEli Cohen } 1902e126ba97SEli Cohen 1903e126ba97SEli Cohen seg->flags = convert_access(wr->wr.fast_reg.access_flags); 1904e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(to_mpd((struct ib_pd *)wr->wr.fast_reg.page_list)->pdn); 1905e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 1906e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 1907e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 1908746b5583SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 | 1909746b5583SEli Cohen mlx5_mkey_variant(wr->wr.fast_reg.rkey)); 1910e126ba97SEli Cohen } 1911e126ba97SEli Cohen 1912e126ba97SEli Cohen static void set_frwr_pages(struct mlx5_wqe_data_seg *dseg, 1913e126ba97SEli Cohen struct ib_send_wr *wr, 1914e126ba97SEli Cohen struct mlx5_core_dev *mdev, 1915e126ba97SEli Cohen struct mlx5_ib_pd *pd, 1916e126ba97SEli Cohen int writ) 1917e126ba97SEli Cohen { 1918e126ba97SEli Cohen struct mlx5_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list); 1919e126ba97SEli Cohen u64 *page_list = wr->wr.fast_reg.page_list->page_list; 1920e126ba97SEli Cohen u64 perm = MLX5_EN_RD | (writ ? MLX5_EN_WR : 0); 1921e126ba97SEli Cohen int i; 1922e126ba97SEli Cohen 1923e126ba97SEli Cohen for (i = 0; i < wr->wr.fast_reg.page_list_len; i++) 1924e126ba97SEli Cohen mfrpl->mapped_page_list[i] = cpu_to_be64(page_list[i] | perm); 1925e126ba97SEli Cohen dseg->addr = cpu_to_be64(mfrpl->map); 1926e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(ALIGN(sizeof(u64) * wr->wr.fast_reg.page_list_len, 64)); 1927e126ba97SEli Cohen dseg->lkey = cpu_to_be32(pd->pa_lkey); 1928e126ba97SEli Cohen } 1929e126ba97SEli Cohen 1930e126ba97SEli Cohen static __be32 send_ieth(struct ib_send_wr *wr) 1931e126ba97SEli Cohen { 1932e126ba97SEli Cohen switch (wr->opcode) { 1933e126ba97SEli Cohen case IB_WR_SEND_WITH_IMM: 1934e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 1935e126ba97SEli Cohen return wr->ex.imm_data; 1936e126ba97SEli Cohen 1937e126ba97SEli Cohen case IB_WR_SEND_WITH_INV: 1938e126ba97SEli Cohen return cpu_to_be32(wr->ex.invalidate_rkey); 1939e126ba97SEli Cohen 1940e126ba97SEli Cohen default: 1941e126ba97SEli Cohen return 0; 1942e126ba97SEli Cohen } 1943e126ba97SEli Cohen } 1944e126ba97SEli Cohen 1945e126ba97SEli Cohen static u8 calc_sig(void *wqe, int size) 1946e126ba97SEli Cohen { 1947e126ba97SEli Cohen u8 *p = wqe; 1948e126ba97SEli Cohen u8 res = 0; 1949e126ba97SEli Cohen int i; 1950e126ba97SEli Cohen 1951e126ba97SEli Cohen for (i = 0; i < size; i++) 1952e126ba97SEli Cohen res ^= p[i]; 1953e126ba97SEli Cohen 1954e126ba97SEli Cohen return ~res; 1955e126ba97SEli Cohen } 1956e126ba97SEli Cohen 1957e126ba97SEli Cohen static u8 wq_sig(void *wqe) 1958e126ba97SEli Cohen { 1959e126ba97SEli Cohen return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4); 1960e126ba97SEli Cohen } 1961e126ba97SEli Cohen 1962e126ba97SEli Cohen static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr, 1963e126ba97SEli Cohen void *wqe, int *sz) 1964e126ba97SEli Cohen { 1965e126ba97SEli Cohen struct mlx5_wqe_inline_seg *seg; 1966e126ba97SEli Cohen void *qend = qp->sq.qend; 1967e126ba97SEli Cohen void *addr; 1968e126ba97SEli Cohen int inl = 0; 1969e126ba97SEli Cohen int copy; 1970e126ba97SEli Cohen int len; 1971e126ba97SEli Cohen int i; 1972e126ba97SEli Cohen 1973e126ba97SEli Cohen seg = wqe; 1974e126ba97SEli Cohen wqe += sizeof(*seg); 1975e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) { 1976e126ba97SEli Cohen addr = (void *)(unsigned long)(wr->sg_list[i].addr); 1977e126ba97SEli Cohen len = wr->sg_list[i].length; 1978e126ba97SEli Cohen inl += len; 1979e126ba97SEli Cohen 1980e126ba97SEli Cohen if (unlikely(inl > qp->max_inline_data)) 1981e126ba97SEli Cohen return -ENOMEM; 1982e126ba97SEli Cohen 1983e126ba97SEli Cohen if (unlikely(wqe + len > qend)) { 1984e126ba97SEli Cohen copy = qend - wqe; 1985e126ba97SEli Cohen memcpy(wqe, addr, copy); 1986e126ba97SEli Cohen addr += copy; 1987e126ba97SEli Cohen len -= copy; 1988e126ba97SEli Cohen wqe = mlx5_get_send_wqe(qp, 0); 1989e126ba97SEli Cohen } 1990e126ba97SEli Cohen memcpy(wqe, addr, len); 1991e126ba97SEli Cohen wqe += len; 1992e126ba97SEli Cohen } 1993e126ba97SEli Cohen 1994e126ba97SEli Cohen seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG); 1995e126ba97SEli Cohen 1996e126ba97SEli Cohen *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16; 1997e126ba97SEli Cohen 1998e126ba97SEli Cohen return 0; 1999e126ba97SEli Cohen } 2000e126ba97SEli Cohen 2001e6631814SSagi Grimberg static u16 prot_field_size(enum ib_signature_type type) 2002e6631814SSagi Grimberg { 2003e6631814SSagi Grimberg switch (type) { 2004e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2005e6631814SSagi Grimberg return MLX5_DIF_SIZE; 2006e6631814SSagi Grimberg default: 2007e6631814SSagi Grimberg return 0; 2008e6631814SSagi Grimberg } 2009e6631814SSagi Grimberg } 2010e6631814SSagi Grimberg 2011e6631814SSagi Grimberg static u8 bs_selector(int block_size) 2012e6631814SSagi Grimberg { 2013e6631814SSagi Grimberg switch (block_size) { 2014e6631814SSagi Grimberg case 512: return 0x1; 2015e6631814SSagi Grimberg case 520: return 0x2; 2016e6631814SSagi Grimberg case 4096: return 0x3; 2017e6631814SSagi Grimberg case 4160: return 0x4; 2018e6631814SSagi Grimberg case 1073741824: return 0x5; 2019e6631814SSagi Grimberg default: return 0; 2020e6631814SSagi Grimberg } 2021e6631814SSagi Grimberg } 2022e6631814SSagi Grimberg 202378eda2bbSSagi Grimberg static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain, 2024142537f4SSagi Grimberg struct mlx5_bsf_inl *inl) 2025e6631814SSagi Grimberg { 2026142537f4SSagi Grimberg /* Valid inline section and allow BSF refresh */ 2027142537f4SSagi Grimberg inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID | 2028142537f4SSagi Grimberg MLX5_BSF_REFRESH_DIF); 2029142537f4SSagi Grimberg inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag); 2030142537f4SSagi Grimberg inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag); 2031142537f4SSagi Grimberg /* repeating block */ 2032142537f4SSagi Grimberg inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK; 2033142537f4SSagi Grimberg inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ? 2034142537f4SSagi Grimberg MLX5_DIF_CRC : MLX5_DIF_IPCS; 203578eda2bbSSagi Grimberg 203678eda2bbSSagi Grimberg if (domain->sig.dif.ref_remap) 203778eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG; 203878eda2bbSSagi Grimberg 203978eda2bbSSagi Grimberg if (domain->sig.dif.app_escape) { 204078eda2bbSSagi Grimberg if (domain->sig.dif.ref_escape) 204178eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE; 204278eda2bbSSagi Grimberg else 204378eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE; 2044e6631814SSagi Grimberg } 2045e6631814SSagi Grimberg 204678eda2bbSSagi Grimberg inl->dif_app_bitmask_check = 204778eda2bbSSagi Grimberg cpu_to_be16(domain->sig.dif.apptag_check_mask); 2048e6631814SSagi Grimberg } 2049e6631814SSagi Grimberg 2050e6631814SSagi Grimberg static int mlx5_set_bsf(struct ib_mr *sig_mr, 2051e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs, 2052e6631814SSagi Grimberg struct mlx5_bsf *bsf, u32 data_size) 2053e6631814SSagi Grimberg { 2054e6631814SSagi Grimberg struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig; 2055e6631814SSagi Grimberg struct mlx5_bsf_basic *basic = &bsf->basic; 2056e6631814SSagi Grimberg struct ib_sig_domain *mem = &sig_attrs->mem; 2057e6631814SSagi Grimberg struct ib_sig_domain *wire = &sig_attrs->wire; 2058e6631814SSagi Grimberg 2059c7f44fbdSSagi Grimberg memset(bsf, 0, sizeof(*bsf)); 2060e6631814SSagi Grimberg 2061142537f4SSagi Grimberg /* Basic + Extended + Inline */ 2062142537f4SSagi Grimberg basic->bsf_size_sbs = 1 << 7; 2063e6631814SSagi Grimberg /* Input domain check byte mask */ 2064e6631814SSagi Grimberg basic->check_byte_mask = sig_attrs->check_mask; 206578eda2bbSSagi Grimberg basic->raw_data_size = cpu_to_be32(data_size); 206678eda2bbSSagi Grimberg 206778eda2bbSSagi Grimberg /* Memory domain */ 206878eda2bbSSagi Grimberg switch (sig_attrs->mem.sig_type) { 206978eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 207078eda2bbSSagi Grimberg break; 207178eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 207278eda2bbSSagi Grimberg basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval); 207378eda2bbSSagi Grimberg basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx); 207478eda2bbSSagi Grimberg mlx5_fill_inl_bsf(mem, &bsf->m_inl); 207578eda2bbSSagi Grimberg break; 207678eda2bbSSagi Grimberg default: 207778eda2bbSSagi Grimberg return -EINVAL; 207878eda2bbSSagi Grimberg } 207978eda2bbSSagi Grimberg 208078eda2bbSSagi Grimberg /* Wire domain */ 208178eda2bbSSagi Grimberg switch (sig_attrs->wire.sig_type) { 208278eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 208378eda2bbSSagi Grimberg break; 208478eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2085e6631814SSagi Grimberg if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval && 208678eda2bbSSagi Grimberg mem->sig_type == wire->sig_type) { 2087e6631814SSagi Grimberg /* Same block structure */ 2088142537f4SSagi Grimberg basic->bsf_size_sbs |= 1 << 4; 2089e6631814SSagi Grimberg if (mem->sig.dif.bg_type == wire->sig.dif.bg_type) 2090fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK; 2091c7f44fbdSSagi Grimberg if (mem->sig.dif.app_tag == wire->sig.dif.app_tag) 2092fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK; 2093c7f44fbdSSagi Grimberg if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag) 2094fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK; 2095e6631814SSagi Grimberg } else 2096e6631814SSagi Grimberg basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval); 2097e6631814SSagi Grimberg 2098142537f4SSagi Grimberg basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx); 209978eda2bbSSagi Grimberg mlx5_fill_inl_bsf(wire, &bsf->w_inl); 2100e6631814SSagi Grimberg break; 2101e6631814SSagi Grimberg default: 2102e6631814SSagi Grimberg return -EINVAL; 2103e6631814SSagi Grimberg } 2104e6631814SSagi Grimberg 2105e6631814SSagi Grimberg return 0; 2106e6631814SSagi Grimberg } 2107e6631814SSagi Grimberg 2108e6631814SSagi Grimberg static int set_sig_data_segment(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, 2109e6631814SSagi Grimberg void **seg, int *size) 2110e6631814SSagi Grimberg { 2111e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs = wr->wr.sig_handover.sig_attrs; 2112e6631814SSagi Grimberg struct ib_mr *sig_mr = wr->wr.sig_handover.sig_mr; 2113e6631814SSagi Grimberg struct mlx5_bsf *bsf; 2114e6631814SSagi Grimberg u32 data_len = wr->sg_list->length; 2115e6631814SSagi Grimberg u32 data_key = wr->sg_list->lkey; 2116e6631814SSagi Grimberg u64 data_va = wr->sg_list->addr; 2117e6631814SSagi Grimberg int ret; 2118e6631814SSagi Grimberg int wqe_size; 2119e6631814SSagi Grimberg 21205c273b16SSagi Grimberg if (!wr->wr.sig_handover.prot || 21215c273b16SSagi Grimberg (data_key == wr->wr.sig_handover.prot->lkey && 21225c273b16SSagi Grimberg data_va == wr->wr.sig_handover.prot->addr && 21235c273b16SSagi Grimberg data_len == wr->wr.sig_handover.prot->length)) { 2124e6631814SSagi Grimberg /** 2125e6631814SSagi Grimberg * Source domain doesn't contain signature information 21265c273b16SSagi Grimberg * or data and protection are interleaved in memory. 2127e6631814SSagi Grimberg * So need construct: 2128e6631814SSagi Grimberg * ------------------ 2129e6631814SSagi Grimberg * | data_klm | 2130e6631814SSagi Grimberg * ------------------ 2131e6631814SSagi Grimberg * | BSF | 2132e6631814SSagi Grimberg * ------------------ 2133e6631814SSagi Grimberg **/ 2134e6631814SSagi Grimberg struct mlx5_klm *data_klm = *seg; 2135e6631814SSagi Grimberg 2136e6631814SSagi Grimberg data_klm->bcount = cpu_to_be32(data_len); 2137e6631814SSagi Grimberg data_klm->key = cpu_to_be32(data_key); 2138e6631814SSagi Grimberg data_klm->va = cpu_to_be64(data_va); 2139e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*data_klm), 64); 2140e6631814SSagi Grimberg } else { 2141e6631814SSagi Grimberg /** 2142e6631814SSagi Grimberg * Source domain contains signature information 2143e6631814SSagi Grimberg * So need construct a strided block format: 2144e6631814SSagi Grimberg * --------------------------- 2145e6631814SSagi Grimberg * | stride_block_ctrl | 2146e6631814SSagi Grimberg * --------------------------- 2147e6631814SSagi Grimberg * | data_klm | 2148e6631814SSagi Grimberg * --------------------------- 2149e6631814SSagi Grimberg * | prot_klm | 2150e6631814SSagi Grimberg * --------------------------- 2151e6631814SSagi Grimberg * | BSF | 2152e6631814SSagi Grimberg * --------------------------- 2153e6631814SSagi Grimberg **/ 2154e6631814SSagi Grimberg struct mlx5_stride_block_ctrl_seg *sblock_ctrl; 2155e6631814SSagi Grimberg struct mlx5_stride_block_entry *data_sentry; 2156e6631814SSagi Grimberg struct mlx5_stride_block_entry *prot_sentry; 2157e6631814SSagi Grimberg u32 prot_key = wr->wr.sig_handover.prot->lkey; 2158e6631814SSagi Grimberg u64 prot_va = wr->wr.sig_handover.prot->addr; 2159e6631814SSagi Grimberg u16 block_size = sig_attrs->mem.sig.dif.pi_interval; 2160e6631814SSagi Grimberg int prot_size; 2161e6631814SSagi Grimberg 2162e6631814SSagi Grimberg sblock_ctrl = *seg; 2163e6631814SSagi Grimberg data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl); 2164e6631814SSagi Grimberg prot_sentry = (void *)data_sentry + sizeof(*data_sentry); 2165e6631814SSagi Grimberg 2166e6631814SSagi Grimberg prot_size = prot_field_size(sig_attrs->mem.sig_type); 2167e6631814SSagi Grimberg if (!prot_size) { 2168e6631814SSagi Grimberg pr_err("Bad block size given: %u\n", block_size); 2169e6631814SSagi Grimberg return -EINVAL; 2170e6631814SSagi Grimberg } 2171e6631814SSagi Grimberg sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size + 2172e6631814SSagi Grimberg prot_size); 2173e6631814SSagi Grimberg sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP); 2174e6631814SSagi Grimberg sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size); 2175e6631814SSagi Grimberg sblock_ctrl->num_entries = cpu_to_be16(2); 2176e6631814SSagi Grimberg 2177e6631814SSagi Grimberg data_sentry->bcount = cpu_to_be16(block_size); 2178e6631814SSagi Grimberg data_sentry->key = cpu_to_be32(data_key); 2179e6631814SSagi Grimberg data_sentry->va = cpu_to_be64(data_va); 21805c273b16SSagi Grimberg data_sentry->stride = cpu_to_be16(block_size); 21815c273b16SSagi Grimberg 2182e6631814SSagi Grimberg prot_sentry->bcount = cpu_to_be16(prot_size); 2183e6631814SSagi Grimberg prot_sentry->key = cpu_to_be32(prot_key); 2184e6631814SSagi Grimberg prot_sentry->va = cpu_to_be64(prot_va); 2185e6631814SSagi Grimberg prot_sentry->stride = cpu_to_be16(prot_size); 21865c273b16SSagi Grimberg 2187e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) + 2188e6631814SSagi Grimberg sizeof(*prot_sentry), 64); 2189e6631814SSagi Grimberg } 2190e6631814SSagi Grimberg 2191e6631814SSagi Grimberg *seg += wqe_size; 2192e6631814SSagi Grimberg *size += wqe_size / 16; 2193e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2194e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2195e6631814SSagi Grimberg 2196e6631814SSagi Grimberg bsf = *seg; 2197e6631814SSagi Grimberg ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len); 2198e6631814SSagi Grimberg if (ret) 2199e6631814SSagi Grimberg return -EINVAL; 2200e6631814SSagi Grimberg 2201e6631814SSagi Grimberg *seg += sizeof(*bsf); 2202e6631814SSagi Grimberg *size += sizeof(*bsf) / 16; 2203e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2204e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2205e6631814SSagi Grimberg 2206e6631814SSagi Grimberg return 0; 2207e6631814SSagi Grimberg } 2208e6631814SSagi Grimberg 2209e6631814SSagi Grimberg static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg, 2210e6631814SSagi Grimberg struct ib_send_wr *wr, u32 nelements, 2211e6631814SSagi Grimberg u32 length, u32 pdn) 2212e6631814SSagi Grimberg { 2213e6631814SSagi Grimberg struct ib_mr *sig_mr = wr->wr.sig_handover.sig_mr; 2214e6631814SSagi Grimberg u32 sig_key = sig_mr->rkey; 2215d5436ba0SSagi Grimberg u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1; 2216e6631814SSagi Grimberg 2217e6631814SSagi Grimberg memset(seg, 0, sizeof(*seg)); 2218e6631814SSagi Grimberg 2219e6631814SSagi Grimberg seg->flags = get_umr_flags(wr->wr.sig_handover.access_flags) | 2220e6631814SSagi Grimberg MLX5_ACCESS_MODE_KLM; 2221e6631814SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00); 2222d5436ba0SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 | 2223e6631814SSagi Grimberg MLX5_MKEY_BSF_EN | pdn); 2224e6631814SSagi Grimberg seg->len = cpu_to_be64(length); 2225e6631814SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements))); 2226e6631814SSagi Grimberg seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE); 2227e6631814SSagi Grimberg } 2228e6631814SSagi Grimberg 2229e6631814SSagi Grimberg static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2230e6631814SSagi Grimberg struct ib_send_wr *wr, u32 nelements) 2231e6631814SSagi Grimberg { 2232e6631814SSagi Grimberg memset(umr, 0, sizeof(*umr)); 2233e6631814SSagi Grimberg 2234e6631814SSagi Grimberg umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE; 2235e6631814SSagi Grimberg umr->klm_octowords = get_klm_octo(nelements); 2236e6631814SSagi Grimberg umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE); 2237e6631814SSagi Grimberg umr->mkey_mask = sig_mkey_mask(); 2238e6631814SSagi Grimberg } 2239e6631814SSagi Grimberg 2240e6631814SSagi Grimberg 2241e6631814SSagi Grimberg static int set_sig_umr_wr(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, 2242e6631814SSagi Grimberg void **seg, int *size) 2243e6631814SSagi Grimberg { 2244e6631814SSagi Grimberg struct mlx5_ib_mr *sig_mr = to_mmr(wr->wr.sig_handover.sig_mr); 2245e6631814SSagi Grimberg u32 pdn = get_pd(qp)->pdn; 2246e6631814SSagi Grimberg u32 klm_oct_size; 2247e6631814SSagi Grimberg int region_len, ret; 2248e6631814SSagi Grimberg 2249e6631814SSagi Grimberg if (unlikely(wr->num_sge != 1) || 2250e6631814SSagi Grimberg unlikely(wr->wr.sig_handover.access_flags & 2251e6631814SSagi Grimberg IB_ACCESS_REMOTE_ATOMIC) || 2252d5436ba0SSagi Grimberg unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) || 2253d5436ba0SSagi Grimberg unlikely(!sig_mr->sig->sig_status_checked)) 2254e6631814SSagi Grimberg return -EINVAL; 2255e6631814SSagi Grimberg 2256e6631814SSagi Grimberg /* length of the protected region, data + protection */ 2257e6631814SSagi Grimberg region_len = wr->sg_list->length; 22588524867bSSagi Grimberg if (wr->wr.sig_handover.prot && 22598524867bSSagi Grimberg (wr->wr.sig_handover.prot->lkey != wr->sg_list->lkey || 22608524867bSSagi Grimberg wr->wr.sig_handover.prot->addr != wr->sg_list->addr || 22618524867bSSagi Grimberg wr->wr.sig_handover.prot->length != wr->sg_list->length)) 2262e6631814SSagi Grimberg region_len += wr->wr.sig_handover.prot->length; 2263e6631814SSagi Grimberg 2264e6631814SSagi Grimberg /** 2265e6631814SSagi Grimberg * KLM octoword size - if protection was provided 2266e6631814SSagi Grimberg * then we use strided block format (3 octowords), 2267e6631814SSagi Grimberg * else we use single KLM (1 octoword) 2268e6631814SSagi Grimberg **/ 2269e6631814SSagi Grimberg klm_oct_size = wr->wr.sig_handover.prot ? 3 : 1; 2270e6631814SSagi Grimberg 2271e6631814SSagi Grimberg set_sig_umr_segment(*seg, wr, klm_oct_size); 2272e6631814SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2273e6631814SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2274e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2275e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2276e6631814SSagi Grimberg 2277e6631814SSagi Grimberg set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn); 2278e6631814SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 2279e6631814SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 2280e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2281e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2282e6631814SSagi Grimberg 2283e6631814SSagi Grimberg ret = set_sig_data_segment(wr, qp, seg, size); 2284e6631814SSagi Grimberg if (ret) 2285e6631814SSagi Grimberg return ret; 2286e6631814SSagi Grimberg 2287d5436ba0SSagi Grimberg sig_mr->sig->sig_status_checked = false; 2288e6631814SSagi Grimberg return 0; 2289e6631814SSagi Grimberg } 2290e6631814SSagi Grimberg 2291e6631814SSagi Grimberg static int set_psv_wr(struct ib_sig_domain *domain, 2292e6631814SSagi Grimberg u32 psv_idx, void **seg, int *size) 2293e6631814SSagi Grimberg { 2294e6631814SSagi Grimberg struct mlx5_seg_set_psv *psv_seg = *seg; 2295e6631814SSagi Grimberg 2296e6631814SSagi Grimberg memset(psv_seg, 0, sizeof(*psv_seg)); 2297e6631814SSagi Grimberg psv_seg->psv_num = cpu_to_be32(psv_idx); 2298e6631814SSagi Grimberg switch (domain->sig_type) { 229978eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 230078eda2bbSSagi Grimberg break; 2301e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2302e6631814SSagi Grimberg psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 | 2303e6631814SSagi Grimberg domain->sig.dif.app_tag); 2304e6631814SSagi Grimberg psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag); 2305e6631814SSagi Grimberg break; 2306e6631814SSagi Grimberg default: 2307e6631814SSagi Grimberg pr_err("Bad signature type given.\n"); 2308e6631814SSagi Grimberg return 1; 2309e6631814SSagi Grimberg } 2310e6631814SSagi Grimberg 231178eda2bbSSagi Grimberg *seg += sizeof(*psv_seg); 231278eda2bbSSagi Grimberg *size += sizeof(*psv_seg) / 16; 231378eda2bbSSagi Grimberg 2314e6631814SSagi Grimberg return 0; 2315e6631814SSagi Grimberg } 2316e6631814SSagi Grimberg 2317e126ba97SEli Cohen static int set_frwr_li_wr(void **seg, struct ib_send_wr *wr, int *size, 2318e126ba97SEli Cohen struct mlx5_core_dev *mdev, struct mlx5_ib_pd *pd, struct mlx5_ib_qp *qp) 2319e126ba97SEli Cohen { 2320e126ba97SEli Cohen int writ = 0; 2321e126ba97SEli Cohen int li; 2322e126ba97SEli Cohen 2323e126ba97SEli Cohen li = wr->opcode == IB_WR_LOCAL_INV ? 1 : 0; 2324e126ba97SEli Cohen if (unlikely(wr->send_flags & IB_SEND_INLINE)) 2325e126ba97SEli Cohen return -EINVAL; 2326e126ba97SEli Cohen 2327e126ba97SEli Cohen set_frwr_umr_segment(*seg, wr, li); 2328e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2329e126ba97SEli Cohen *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2330e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2331e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2332e126ba97SEli Cohen set_mkey_segment(*seg, wr, li, &writ); 2333e126ba97SEli Cohen *seg += sizeof(struct mlx5_mkey_seg); 2334e126ba97SEli Cohen *size += sizeof(struct mlx5_mkey_seg) / 16; 2335e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2336e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2337e126ba97SEli Cohen if (!li) { 23389641b74eSEli Cohen if (unlikely(wr->wr.fast_reg.page_list_len > 23399641b74eSEli Cohen wr->wr.fast_reg.page_list->max_page_list_len)) 23409641b74eSEli Cohen return -ENOMEM; 23419641b74eSEli Cohen 2342e126ba97SEli Cohen set_frwr_pages(*seg, wr, mdev, pd, writ); 2343e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_data_seg); 2344e126ba97SEli Cohen *size += (sizeof(struct mlx5_wqe_data_seg) / 16); 2345e126ba97SEli Cohen } 2346e126ba97SEli Cohen return 0; 2347e126ba97SEli Cohen } 2348e126ba97SEli Cohen 2349e126ba97SEli Cohen static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16) 2350e126ba97SEli Cohen { 2351e126ba97SEli Cohen __be32 *p = NULL; 2352e126ba97SEli Cohen int tidx = idx; 2353e126ba97SEli Cohen int i, j; 2354e126ba97SEli Cohen 2355e126ba97SEli Cohen pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx)); 2356e126ba97SEli Cohen for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) { 2357e126ba97SEli Cohen if ((i & 0xf) == 0) { 2358e126ba97SEli Cohen void *buf = mlx5_get_send_wqe(qp, tidx); 2359e126ba97SEli Cohen tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1); 2360e126ba97SEli Cohen p = buf; 2361e126ba97SEli Cohen j = 0; 2362e126ba97SEli Cohen } 2363e126ba97SEli Cohen pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]), 2364e126ba97SEli Cohen be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]), 2365e126ba97SEli Cohen be32_to_cpu(p[j + 3])); 2366e126ba97SEli Cohen } 2367e126ba97SEli Cohen } 2368e126ba97SEli Cohen 2369e126ba97SEli Cohen static void mlx5_bf_copy(u64 __iomem *dst, u64 *src, 2370e126ba97SEli Cohen unsigned bytecnt, struct mlx5_ib_qp *qp) 2371e126ba97SEli Cohen { 2372e126ba97SEli Cohen while (bytecnt > 0) { 2373e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2374e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2375e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2376e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2377e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2378e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2379e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2380e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2381e126ba97SEli Cohen bytecnt -= 64; 2382e126ba97SEli Cohen if (unlikely(src == qp->sq.qend)) 2383e126ba97SEli Cohen src = mlx5_get_send_wqe(qp, 0); 2384e126ba97SEli Cohen } 2385e126ba97SEli Cohen } 2386e126ba97SEli Cohen 2387e126ba97SEli Cohen static u8 get_fence(u8 fence, struct ib_send_wr *wr) 2388e126ba97SEli Cohen { 2389e126ba97SEli Cohen if (unlikely(wr->opcode == IB_WR_LOCAL_INV && 2390e126ba97SEli Cohen wr->send_flags & IB_SEND_FENCE)) 2391e126ba97SEli Cohen return MLX5_FENCE_MODE_STRONG_ORDERING; 2392e126ba97SEli Cohen 2393e126ba97SEli Cohen if (unlikely(fence)) { 2394e126ba97SEli Cohen if (wr->send_flags & IB_SEND_FENCE) 2395e126ba97SEli Cohen return MLX5_FENCE_MODE_SMALL_AND_FENCE; 2396e126ba97SEli Cohen else 2397e126ba97SEli Cohen return fence; 2398e126ba97SEli Cohen 2399e126ba97SEli Cohen } else { 2400e126ba97SEli Cohen return 0; 2401e126ba97SEli Cohen } 2402e126ba97SEli Cohen } 2403e126ba97SEli Cohen 24046e5eadacSSagi Grimberg static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, 24056e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg **ctrl, 24066e5eadacSSagi Grimberg struct ib_send_wr *wr, int *idx, 24076e5eadacSSagi Grimberg int *size, int nreq) 24086e5eadacSSagi Grimberg { 24096e5eadacSSagi Grimberg int err = 0; 24106e5eadacSSagi Grimberg 24116e5eadacSSagi Grimberg if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { 24126e5eadacSSagi Grimberg err = -ENOMEM; 24136e5eadacSSagi Grimberg return err; 24146e5eadacSSagi Grimberg } 24156e5eadacSSagi Grimberg 24166e5eadacSSagi Grimberg *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); 24176e5eadacSSagi Grimberg *seg = mlx5_get_send_wqe(qp, *idx); 24186e5eadacSSagi Grimberg *ctrl = *seg; 24196e5eadacSSagi Grimberg *(uint32_t *)(*seg + 8) = 0; 24206e5eadacSSagi Grimberg (*ctrl)->imm = send_ieth(wr); 24216e5eadacSSagi Grimberg (*ctrl)->fm_ce_se = qp->sq_signal_bits | 24226e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SIGNALED ? 24236e5eadacSSagi Grimberg MLX5_WQE_CTRL_CQ_UPDATE : 0) | 24246e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SOLICITED ? 24256e5eadacSSagi Grimberg MLX5_WQE_CTRL_SOLICITED : 0); 24266e5eadacSSagi Grimberg 24276e5eadacSSagi Grimberg *seg += sizeof(**ctrl); 24286e5eadacSSagi Grimberg *size = sizeof(**ctrl) / 16; 24296e5eadacSSagi Grimberg 24306e5eadacSSagi Grimberg return err; 24316e5eadacSSagi Grimberg } 24326e5eadacSSagi Grimberg 24336e5eadacSSagi Grimberg static void finish_wqe(struct mlx5_ib_qp *qp, 24346e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg *ctrl, 24356e5eadacSSagi Grimberg u8 size, unsigned idx, u64 wr_id, 24366e5eadacSSagi Grimberg int nreq, u8 fence, u8 next_fence, 24376e5eadacSSagi Grimberg u32 mlx5_opcode) 24386e5eadacSSagi Grimberg { 24396e5eadacSSagi Grimberg u8 opmod = 0; 24406e5eadacSSagi Grimberg 24416e5eadacSSagi Grimberg ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) | 24426e5eadacSSagi Grimberg mlx5_opcode | ((u32)opmod << 24)); 24436e5eadacSSagi Grimberg ctrl->qpn_ds = cpu_to_be32(size | (qp->mqp.qpn << 8)); 24446e5eadacSSagi Grimberg ctrl->fm_ce_se |= fence; 24456e5eadacSSagi Grimberg qp->fm_cache = next_fence; 24466e5eadacSSagi Grimberg if (unlikely(qp->wq_sig)) 24476e5eadacSSagi Grimberg ctrl->signature = wq_sig(ctrl); 24486e5eadacSSagi Grimberg 24496e5eadacSSagi Grimberg qp->sq.wrid[idx] = wr_id; 24506e5eadacSSagi Grimberg qp->sq.w_list[idx].opcode = mlx5_opcode; 24516e5eadacSSagi Grimberg qp->sq.wqe_head[idx] = qp->sq.head + nreq; 24526e5eadacSSagi Grimberg qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB); 24536e5eadacSSagi Grimberg qp->sq.w_list[idx].next = qp->sq.cur_post; 24546e5eadacSSagi Grimberg } 24556e5eadacSSagi Grimberg 24566e5eadacSSagi Grimberg 2457e126ba97SEli Cohen int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 2458e126ba97SEli Cohen struct ib_send_wr **bad_wr) 2459e126ba97SEli Cohen { 2460e126ba97SEli Cohen struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */ 2461e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 24629603b61dSJack Morgenstein struct mlx5_core_dev *mdev = dev->mdev; 2463e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2464e6631814SSagi Grimberg struct mlx5_ib_mr *mr; 2465e126ba97SEli Cohen struct mlx5_wqe_data_seg *dpseg; 2466e126ba97SEli Cohen struct mlx5_wqe_xrc_seg *xrc; 2467e126ba97SEli Cohen struct mlx5_bf *bf = qp->bf; 2468e126ba97SEli Cohen int uninitialized_var(size); 2469e126ba97SEli Cohen void *qend = qp->sq.qend; 2470e126ba97SEli Cohen unsigned long flags; 2471e126ba97SEli Cohen unsigned idx; 2472e126ba97SEli Cohen int err = 0; 2473e126ba97SEli Cohen int inl = 0; 2474e126ba97SEli Cohen int num_sge; 2475e126ba97SEli Cohen void *seg; 2476e126ba97SEli Cohen int nreq; 2477e126ba97SEli Cohen int i; 2478e126ba97SEli Cohen u8 next_fence = 0; 2479e126ba97SEli Cohen u8 fence; 2480e126ba97SEli Cohen 2481e126ba97SEli Cohen spin_lock_irqsave(&qp->sq.lock, flags); 2482e126ba97SEli Cohen 2483e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2484a8f731ebSFabian Frederick if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) { 2485e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2486e126ba97SEli Cohen err = -EINVAL; 2487e126ba97SEli Cohen *bad_wr = wr; 2488e126ba97SEli Cohen goto out; 2489e126ba97SEli Cohen } 2490e126ba97SEli Cohen 2491e126ba97SEli Cohen fence = qp->fm_cache; 2492e126ba97SEli Cohen num_sge = wr->num_sge; 2493e126ba97SEli Cohen if (unlikely(num_sge > qp->sq.max_gs)) { 2494e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2495e126ba97SEli Cohen err = -ENOMEM; 2496e126ba97SEli Cohen *bad_wr = wr; 2497e126ba97SEli Cohen goto out; 2498e126ba97SEli Cohen } 2499e126ba97SEli Cohen 25006e5eadacSSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq); 25016e5eadacSSagi Grimberg if (err) { 25026e5eadacSSagi Grimberg mlx5_ib_warn(dev, "\n"); 25036e5eadacSSagi Grimberg err = -ENOMEM; 25046e5eadacSSagi Grimberg *bad_wr = wr; 25056e5eadacSSagi Grimberg goto out; 25066e5eadacSSagi Grimberg } 2507e126ba97SEli Cohen 2508e126ba97SEli Cohen switch (ibqp->qp_type) { 2509e126ba97SEli Cohen case IB_QPT_XRC_INI: 2510e126ba97SEli Cohen xrc = seg; 2511e126ba97SEli Cohen xrc->xrc_srqn = htonl(wr->xrc_remote_srq_num); 2512e126ba97SEli Cohen seg += sizeof(*xrc); 2513e126ba97SEli Cohen size += sizeof(*xrc) / 16; 2514e126ba97SEli Cohen /* fall through */ 2515e126ba97SEli Cohen case IB_QPT_RC: 2516e126ba97SEli Cohen switch (wr->opcode) { 2517e126ba97SEli Cohen case IB_WR_RDMA_READ: 2518e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2519e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2520e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2521e126ba97SEli Cohen wr->wr.rdma.rkey); 2522e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2523e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2524e126ba97SEli Cohen break; 2525e126ba97SEli Cohen 2526e126ba97SEli Cohen case IB_WR_ATOMIC_CMP_AND_SWP: 2527e126ba97SEli Cohen case IB_WR_ATOMIC_FETCH_AND_ADD: 2528e126ba97SEli Cohen case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: 252981bea28fSEli Cohen mlx5_ib_warn(dev, "Atomic operations are not supported yet\n"); 253081bea28fSEli Cohen err = -ENOSYS; 253181bea28fSEli Cohen *bad_wr = wr; 253281bea28fSEli Cohen goto out; 2533e126ba97SEli Cohen 2534e126ba97SEli Cohen case IB_WR_LOCAL_INV: 2535e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2536e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_LOCAL_INV; 2537e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey); 2538e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2539e126ba97SEli Cohen if (err) { 2540e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2541e126ba97SEli Cohen *bad_wr = wr; 2542e126ba97SEli Cohen goto out; 2543e126ba97SEli Cohen } 2544e126ba97SEli Cohen num_sge = 0; 2545e126ba97SEli Cohen break; 2546e126ba97SEli Cohen 2547e126ba97SEli Cohen case IB_WR_FAST_REG_MR: 2548e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2549e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_FAST_REG_MR; 2550e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2551e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2552e126ba97SEli Cohen if (err) { 2553e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2554e126ba97SEli Cohen *bad_wr = wr; 2555e126ba97SEli Cohen goto out; 2556e126ba97SEli Cohen } 2557e126ba97SEli Cohen num_sge = 0; 2558e126ba97SEli Cohen break; 2559e126ba97SEli Cohen 2560e6631814SSagi Grimberg case IB_WR_REG_SIG_MR: 2561e6631814SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR; 2562e6631814SSagi Grimberg mr = to_mmr(wr->wr.sig_handover.sig_mr); 2563e6631814SSagi Grimberg 2564e6631814SSagi Grimberg ctrl->imm = cpu_to_be32(mr->ibmr.rkey); 2565e6631814SSagi Grimberg err = set_sig_umr_wr(wr, qp, &seg, &size); 2566e6631814SSagi Grimberg if (err) { 2567e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2568e6631814SSagi Grimberg *bad_wr = wr; 2569e6631814SSagi Grimberg goto out; 2570e6631814SSagi Grimberg } 2571e6631814SSagi Grimberg 2572e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2573e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2574e6631814SSagi Grimberg next_fence, MLX5_OPCODE_UMR); 2575e6631814SSagi Grimberg /* 2576e6631814SSagi Grimberg * SET_PSV WQEs are not signaled and solicited 2577e6631814SSagi Grimberg * on error 2578e6631814SSagi Grimberg */ 2579e6631814SSagi Grimberg wr->send_flags &= ~IB_SEND_SIGNALED; 2580e6631814SSagi Grimberg wr->send_flags |= IB_SEND_SOLICITED; 2581e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2582e6631814SSagi Grimberg &idx, &size, nreq); 2583e6631814SSagi Grimberg if (err) { 2584e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2585e6631814SSagi Grimberg err = -ENOMEM; 2586e6631814SSagi Grimberg *bad_wr = wr; 2587e6631814SSagi Grimberg goto out; 2588e6631814SSagi Grimberg } 2589e6631814SSagi Grimberg 2590e6631814SSagi Grimberg err = set_psv_wr(&wr->wr.sig_handover.sig_attrs->mem, 2591e6631814SSagi Grimberg mr->sig->psv_memory.psv_idx, &seg, 2592e6631814SSagi Grimberg &size); 2593e6631814SSagi Grimberg if (err) { 2594e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2595e6631814SSagi Grimberg *bad_wr = wr; 2596e6631814SSagi Grimberg goto out; 2597e6631814SSagi Grimberg } 2598e6631814SSagi Grimberg 2599e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2600e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2601e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2602e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2603e6631814SSagi Grimberg &idx, &size, nreq); 2604e6631814SSagi Grimberg if (err) { 2605e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2606e6631814SSagi Grimberg err = -ENOMEM; 2607e6631814SSagi Grimberg *bad_wr = wr; 2608e6631814SSagi Grimberg goto out; 2609e6631814SSagi Grimberg } 2610e6631814SSagi Grimberg 2611e6631814SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2612e6631814SSagi Grimberg err = set_psv_wr(&wr->wr.sig_handover.sig_attrs->wire, 2613e6631814SSagi Grimberg mr->sig->psv_wire.psv_idx, &seg, 2614e6631814SSagi Grimberg &size); 2615e6631814SSagi Grimberg if (err) { 2616e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2617e6631814SSagi Grimberg *bad_wr = wr; 2618e6631814SSagi Grimberg goto out; 2619e6631814SSagi Grimberg } 2620e6631814SSagi Grimberg 2621e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2622e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2623e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2624e6631814SSagi Grimberg num_sge = 0; 2625e6631814SSagi Grimberg goto skip_psv; 2626e6631814SSagi Grimberg 2627e126ba97SEli Cohen default: 2628e126ba97SEli Cohen break; 2629e126ba97SEli Cohen } 2630e126ba97SEli Cohen break; 2631e126ba97SEli Cohen 2632e126ba97SEli Cohen case IB_QPT_UC: 2633e126ba97SEli Cohen switch (wr->opcode) { 2634e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2635e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2636e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2637e126ba97SEli Cohen wr->wr.rdma.rkey); 2638e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2639e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2640e126ba97SEli Cohen break; 2641e126ba97SEli Cohen 2642e126ba97SEli Cohen default: 2643e126ba97SEli Cohen break; 2644e126ba97SEli Cohen } 2645e126ba97SEli Cohen break; 2646e126ba97SEli Cohen 2647e126ba97SEli Cohen case IB_QPT_UD: 2648e126ba97SEli Cohen case IB_QPT_SMI: 2649e126ba97SEli Cohen case IB_QPT_GSI: 2650e126ba97SEli Cohen set_datagram_seg(seg, wr); 2651e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_datagram_seg); 2652e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_datagram_seg) / 16; 2653e126ba97SEli Cohen if (unlikely((seg == qend))) 2654e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2655e126ba97SEli Cohen break; 2656e126ba97SEli Cohen 2657e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 2658e126ba97SEli Cohen if (wr->opcode != MLX5_IB_WR_UMR) { 2659e126ba97SEli Cohen err = -EINVAL; 2660e126ba97SEli Cohen mlx5_ib_warn(dev, "bad opcode\n"); 2661e126ba97SEli Cohen goto out; 2662e126ba97SEli Cohen } 2663e126ba97SEli Cohen qp->sq.wr_data[idx] = MLX5_IB_WR_UMR; 2664e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2665e126ba97SEli Cohen set_reg_umr_segment(seg, wr); 2666e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2667e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2668e126ba97SEli Cohen if (unlikely((seg == qend))) 2669e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2670e126ba97SEli Cohen set_reg_mkey_segment(seg, wr); 2671e126ba97SEli Cohen seg += sizeof(struct mlx5_mkey_seg); 2672e126ba97SEli Cohen size += sizeof(struct mlx5_mkey_seg) / 16; 2673e126ba97SEli Cohen if (unlikely((seg == qend))) 2674e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2675e126ba97SEli Cohen break; 2676e126ba97SEli Cohen 2677e126ba97SEli Cohen default: 2678e126ba97SEli Cohen break; 2679e126ba97SEli Cohen } 2680e126ba97SEli Cohen 2681e126ba97SEli Cohen if (wr->send_flags & IB_SEND_INLINE && num_sge) { 2682e126ba97SEli Cohen int uninitialized_var(sz); 2683e126ba97SEli Cohen 2684e126ba97SEli Cohen err = set_data_inl_seg(qp, wr, seg, &sz); 2685e126ba97SEli Cohen if (unlikely(err)) { 2686e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2687e126ba97SEli Cohen *bad_wr = wr; 2688e126ba97SEli Cohen goto out; 2689e126ba97SEli Cohen } 2690e126ba97SEli Cohen inl = 1; 2691e126ba97SEli Cohen size += sz; 2692e126ba97SEli Cohen } else { 2693e126ba97SEli Cohen dpseg = seg; 2694e126ba97SEli Cohen for (i = 0; i < num_sge; i++) { 2695e126ba97SEli Cohen if (unlikely(dpseg == qend)) { 2696e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2697e126ba97SEli Cohen dpseg = seg; 2698e126ba97SEli Cohen } 2699e126ba97SEli Cohen if (likely(wr->sg_list[i].length)) { 2700e126ba97SEli Cohen set_data_ptr_seg(dpseg, wr->sg_list + i); 2701e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_data_seg) / 16; 2702e126ba97SEli Cohen dpseg++; 2703e126ba97SEli Cohen } 2704e126ba97SEli Cohen } 2705e126ba97SEli Cohen } 2706e126ba97SEli Cohen 27076e5eadacSSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq, 27086e5eadacSSagi Grimberg get_fence(fence, wr), next_fence, 27096e5eadacSSagi Grimberg mlx5_ib_opcode[wr->opcode]); 2710e6631814SSagi Grimberg skip_psv: 2711e126ba97SEli Cohen if (0) 2712e126ba97SEli Cohen dump_wqe(qp, idx, size); 2713e126ba97SEli Cohen } 2714e126ba97SEli Cohen 2715e126ba97SEli Cohen out: 2716e126ba97SEli Cohen if (likely(nreq)) { 2717e126ba97SEli Cohen qp->sq.head += nreq; 2718e126ba97SEli Cohen 2719e126ba97SEli Cohen /* Make sure that descriptors are written before 2720e126ba97SEli Cohen * updating doorbell record and ringing the doorbell 2721e126ba97SEli Cohen */ 2722e126ba97SEli Cohen wmb(); 2723e126ba97SEli Cohen 2724e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post); 2725e126ba97SEli Cohen 2726ada388f7SEli Cohen /* Make sure doorbell record is visible to the HCA before 2727ada388f7SEli Cohen * we hit doorbell */ 2728ada388f7SEli Cohen wmb(); 2729ada388f7SEli Cohen 2730e126ba97SEli Cohen if (bf->need_lock) 2731e126ba97SEli Cohen spin_lock(&bf->lock); 2732e126ba97SEli Cohen 2733e126ba97SEli Cohen /* TBD enable WC */ 2734e126ba97SEli Cohen if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) { 2735e126ba97SEli Cohen mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp); 2736e126ba97SEli Cohen /* wc_wmb(); */ 2737e126ba97SEli Cohen } else { 2738e126ba97SEli Cohen mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset, 2739e126ba97SEli Cohen MLX5_GET_DOORBELL_LOCK(&bf->lock32)); 2740e126ba97SEli Cohen /* Make sure doorbells don't leak out of SQ spinlock 2741e126ba97SEli Cohen * and reach the HCA out of order. 2742e126ba97SEli Cohen */ 2743e126ba97SEli Cohen mmiowb(); 2744e126ba97SEli Cohen } 2745e126ba97SEli Cohen bf->offset ^= bf->buf_size; 2746e126ba97SEli Cohen if (bf->need_lock) 2747e126ba97SEli Cohen spin_unlock(&bf->lock); 2748e126ba97SEli Cohen } 2749e126ba97SEli Cohen 2750e126ba97SEli Cohen spin_unlock_irqrestore(&qp->sq.lock, flags); 2751e126ba97SEli Cohen 2752e126ba97SEli Cohen return err; 2753e126ba97SEli Cohen } 2754e126ba97SEli Cohen 2755e126ba97SEli Cohen static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size) 2756e126ba97SEli Cohen { 2757e126ba97SEli Cohen sig->signature = calc_sig(sig, size); 2758e126ba97SEli Cohen } 2759e126ba97SEli Cohen 2760e126ba97SEli Cohen int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 2761e126ba97SEli Cohen struct ib_recv_wr **bad_wr) 2762e126ba97SEli Cohen { 2763e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2764e126ba97SEli Cohen struct mlx5_wqe_data_seg *scat; 2765e126ba97SEli Cohen struct mlx5_rwqe_sig *sig; 2766e126ba97SEli Cohen unsigned long flags; 2767e126ba97SEli Cohen int err = 0; 2768e126ba97SEli Cohen int nreq; 2769e126ba97SEli Cohen int ind; 2770e126ba97SEli Cohen int i; 2771e126ba97SEli Cohen 2772e126ba97SEli Cohen spin_lock_irqsave(&qp->rq.lock, flags); 2773e126ba97SEli Cohen 2774e126ba97SEli Cohen ind = qp->rq.head & (qp->rq.wqe_cnt - 1); 2775e126ba97SEli Cohen 2776e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2777e126ba97SEli Cohen if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) { 2778e126ba97SEli Cohen err = -ENOMEM; 2779e126ba97SEli Cohen *bad_wr = wr; 2780e126ba97SEli Cohen goto out; 2781e126ba97SEli Cohen } 2782e126ba97SEli Cohen 2783e126ba97SEli Cohen if (unlikely(wr->num_sge > qp->rq.max_gs)) { 2784e126ba97SEli Cohen err = -EINVAL; 2785e126ba97SEli Cohen *bad_wr = wr; 2786e126ba97SEli Cohen goto out; 2787e126ba97SEli Cohen } 2788e126ba97SEli Cohen 2789e126ba97SEli Cohen scat = get_recv_wqe(qp, ind); 2790e126ba97SEli Cohen if (qp->wq_sig) 2791e126ba97SEli Cohen scat++; 2792e126ba97SEli Cohen 2793e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) 2794e126ba97SEli Cohen set_data_ptr_seg(scat + i, wr->sg_list + i); 2795e126ba97SEli Cohen 2796e126ba97SEli Cohen if (i < qp->rq.max_gs) { 2797e126ba97SEli Cohen scat[i].byte_count = 0; 2798e126ba97SEli Cohen scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY); 2799e126ba97SEli Cohen scat[i].addr = 0; 2800e126ba97SEli Cohen } 2801e126ba97SEli Cohen 2802e126ba97SEli Cohen if (qp->wq_sig) { 2803e126ba97SEli Cohen sig = (struct mlx5_rwqe_sig *)scat; 2804e126ba97SEli Cohen set_sig_seg(sig, (qp->rq.max_gs + 1) << 2); 2805e126ba97SEli Cohen } 2806e126ba97SEli Cohen 2807e126ba97SEli Cohen qp->rq.wrid[ind] = wr->wr_id; 2808e126ba97SEli Cohen 2809e126ba97SEli Cohen ind = (ind + 1) & (qp->rq.wqe_cnt - 1); 2810e126ba97SEli Cohen } 2811e126ba97SEli Cohen 2812e126ba97SEli Cohen out: 2813e126ba97SEli Cohen if (likely(nreq)) { 2814e126ba97SEli Cohen qp->rq.head += nreq; 2815e126ba97SEli Cohen 2816e126ba97SEli Cohen /* Make sure that descriptors are written before 2817e126ba97SEli Cohen * doorbell record. 2818e126ba97SEli Cohen */ 2819e126ba97SEli Cohen wmb(); 2820e126ba97SEli Cohen 2821e126ba97SEli Cohen *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff); 2822e126ba97SEli Cohen } 2823e126ba97SEli Cohen 2824e126ba97SEli Cohen spin_unlock_irqrestore(&qp->rq.lock, flags); 2825e126ba97SEli Cohen 2826e126ba97SEli Cohen return err; 2827e126ba97SEli Cohen } 2828e126ba97SEli Cohen 2829e126ba97SEli Cohen static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state) 2830e126ba97SEli Cohen { 2831e126ba97SEli Cohen switch (mlx5_state) { 2832e126ba97SEli Cohen case MLX5_QP_STATE_RST: return IB_QPS_RESET; 2833e126ba97SEli Cohen case MLX5_QP_STATE_INIT: return IB_QPS_INIT; 2834e126ba97SEli Cohen case MLX5_QP_STATE_RTR: return IB_QPS_RTR; 2835e126ba97SEli Cohen case MLX5_QP_STATE_RTS: return IB_QPS_RTS; 2836e126ba97SEli Cohen case MLX5_QP_STATE_SQ_DRAINING: 2837e126ba97SEli Cohen case MLX5_QP_STATE_SQD: return IB_QPS_SQD; 2838e126ba97SEli Cohen case MLX5_QP_STATE_SQER: return IB_QPS_SQE; 2839e126ba97SEli Cohen case MLX5_QP_STATE_ERR: return IB_QPS_ERR; 2840e126ba97SEli Cohen default: return -1; 2841e126ba97SEli Cohen } 2842e126ba97SEli Cohen } 2843e126ba97SEli Cohen 2844e126ba97SEli Cohen static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state) 2845e126ba97SEli Cohen { 2846e126ba97SEli Cohen switch (mlx5_mig_state) { 2847e126ba97SEli Cohen case MLX5_QP_PM_ARMED: return IB_MIG_ARMED; 2848e126ba97SEli Cohen case MLX5_QP_PM_REARM: return IB_MIG_REARM; 2849e126ba97SEli Cohen case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED; 2850e126ba97SEli Cohen default: return -1; 2851e126ba97SEli Cohen } 2852e126ba97SEli Cohen } 2853e126ba97SEli Cohen 2854e126ba97SEli Cohen static int to_ib_qp_access_flags(int mlx5_flags) 2855e126ba97SEli Cohen { 2856e126ba97SEli Cohen int ib_flags = 0; 2857e126ba97SEli Cohen 2858e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RRE) 2859e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_READ; 2860e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RWE) 2861e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_WRITE; 2862e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RAE) 2863e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_ATOMIC; 2864e126ba97SEli Cohen 2865e126ba97SEli Cohen return ib_flags; 2866e126ba97SEli Cohen } 2867e126ba97SEli Cohen 2868e126ba97SEli Cohen static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr, 2869e126ba97SEli Cohen struct mlx5_qp_path *path) 2870e126ba97SEli Cohen { 28719603b61dSJack Morgenstein struct mlx5_core_dev *dev = ibdev->mdev; 2872e126ba97SEli Cohen 2873e126ba97SEli Cohen memset(ib_ah_attr, 0, sizeof(*ib_ah_attr)); 2874e126ba97SEli Cohen ib_ah_attr->port_num = path->port; 2875e126ba97SEli Cohen 2876e126ba97SEli Cohen if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->caps.num_ports) 2877e126ba97SEli Cohen return; 2878e126ba97SEli Cohen 2879e126ba97SEli Cohen ib_ah_attr->sl = path->sl & 0xf; 2880e126ba97SEli Cohen 2881e126ba97SEli Cohen ib_ah_attr->dlid = be16_to_cpu(path->rlid); 2882e126ba97SEli Cohen ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f; 2883e126ba97SEli Cohen ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0; 2884e126ba97SEli Cohen ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0; 2885e126ba97SEli Cohen if (ib_ah_attr->ah_flags) { 2886e126ba97SEli Cohen ib_ah_attr->grh.sgid_index = path->mgid_index; 2887e126ba97SEli Cohen ib_ah_attr->grh.hop_limit = path->hop_limit; 2888e126ba97SEli Cohen ib_ah_attr->grh.traffic_class = 2889e126ba97SEli Cohen (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; 2890e126ba97SEli Cohen ib_ah_attr->grh.flow_label = 2891e126ba97SEli Cohen be32_to_cpu(path->tclass_flowlabel) & 0xfffff; 2892e126ba97SEli Cohen memcpy(ib_ah_attr->grh.dgid.raw, 2893e126ba97SEli Cohen path->rgid, sizeof(ib_ah_attr->grh.dgid.raw)); 2894e126ba97SEli Cohen } 2895e126ba97SEli Cohen } 2896e126ba97SEli Cohen 2897e126ba97SEli Cohen int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 2898e126ba97SEli Cohen struct ib_qp_init_attr *qp_init_attr) 2899e126ba97SEli Cohen { 2900e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 2901e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2902e126ba97SEli Cohen struct mlx5_query_qp_mbox_out *outb; 2903e126ba97SEli Cohen struct mlx5_qp_context *context; 2904e126ba97SEli Cohen int mlx5_state; 2905e126ba97SEli Cohen int err = 0; 2906e126ba97SEli Cohen 2907e126ba97SEli Cohen mutex_lock(&qp->mutex); 2908e126ba97SEli Cohen outb = kzalloc(sizeof(*outb), GFP_KERNEL); 2909e126ba97SEli Cohen if (!outb) { 2910e126ba97SEli Cohen err = -ENOMEM; 2911e126ba97SEli Cohen goto out; 2912e126ba97SEli Cohen } 2913e126ba97SEli Cohen context = &outb->ctx; 29149603b61dSJack Morgenstein err = mlx5_core_qp_query(dev->mdev, &qp->mqp, outb, sizeof(*outb)); 2915e126ba97SEli Cohen if (err) 2916e126ba97SEli Cohen goto out_free; 2917e126ba97SEli Cohen 2918e126ba97SEli Cohen mlx5_state = be32_to_cpu(context->flags) >> 28; 2919e126ba97SEli Cohen 2920e126ba97SEli Cohen qp->state = to_ib_qp_state(mlx5_state); 2921e126ba97SEli Cohen qp_attr->qp_state = qp->state; 2922e126ba97SEli Cohen qp_attr->path_mtu = context->mtu_msgmax >> 5; 2923e126ba97SEli Cohen qp_attr->path_mig_state = 2924e126ba97SEli Cohen to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3); 2925e126ba97SEli Cohen qp_attr->qkey = be32_to_cpu(context->qkey); 2926e126ba97SEli Cohen qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff; 2927e126ba97SEli Cohen qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff; 2928e126ba97SEli Cohen qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff; 2929e126ba97SEli Cohen qp_attr->qp_access_flags = 2930e126ba97SEli Cohen to_ib_qp_access_flags(be32_to_cpu(context->params2)); 2931e126ba97SEli Cohen 2932e126ba97SEli Cohen if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) { 2933e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); 2934e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); 2935e126ba97SEli Cohen qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f; 2936e126ba97SEli Cohen qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; 2937e126ba97SEli Cohen } 2938e126ba97SEli Cohen 2939e126ba97SEli Cohen qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f; 2940e126ba97SEli Cohen qp_attr->port_num = context->pri_path.port; 2941e126ba97SEli Cohen 2942e126ba97SEli Cohen /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ 2943e126ba97SEli Cohen qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING; 2944e126ba97SEli Cohen 2945e126ba97SEli Cohen qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7); 2946e126ba97SEli Cohen 2947e126ba97SEli Cohen qp_attr->max_dest_rd_atomic = 2948e126ba97SEli Cohen 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); 2949e126ba97SEli Cohen qp_attr->min_rnr_timer = 2950e126ba97SEli Cohen (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; 2951e126ba97SEli Cohen qp_attr->timeout = context->pri_path.ackto_lt >> 3; 2952e126ba97SEli Cohen qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; 2953e126ba97SEli Cohen qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7; 2954e126ba97SEli Cohen qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3; 2955e126ba97SEli Cohen qp_attr->cur_qp_state = qp_attr->qp_state; 2956e126ba97SEli Cohen qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; 2957e126ba97SEli Cohen qp_attr->cap.max_recv_sge = qp->rq.max_gs; 2958e126ba97SEli Cohen 2959e126ba97SEli Cohen if (!ibqp->uobject) { 2960e126ba97SEli Cohen qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; 2961e126ba97SEli Cohen qp_attr->cap.max_send_sge = qp->sq.max_gs; 2962e126ba97SEli Cohen } else { 2963e126ba97SEli Cohen qp_attr->cap.max_send_wr = 0; 2964e126ba97SEli Cohen qp_attr->cap.max_send_sge = 0; 2965e126ba97SEli Cohen } 2966e126ba97SEli Cohen 2967e126ba97SEli Cohen /* We don't support inline sends for kernel QPs (yet), and we 2968e126ba97SEli Cohen * don't know what userspace's value should be. 2969e126ba97SEli Cohen */ 2970e126ba97SEli Cohen qp_attr->cap.max_inline_data = 0; 2971e126ba97SEli Cohen 2972e126ba97SEli Cohen qp_init_attr->cap = qp_attr->cap; 2973e126ba97SEli Cohen 2974e126ba97SEli Cohen qp_init_attr->create_flags = 0; 2975e126ba97SEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 2976e126ba97SEli Cohen qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; 2977e126ba97SEli Cohen 2978e126ba97SEli Cohen qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ? 2979e126ba97SEli Cohen IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR; 2980e126ba97SEli Cohen 2981e126ba97SEli Cohen out_free: 2982e126ba97SEli Cohen kfree(outb); 2983e126ba97SEli Cohen 2984e126ba97SEli Cohen out: 2985e126ba97SEli Cohen mutex_unlock(&qp->mutex); 2986e126ba97SEli Cohen return err; 2987e126ba97SEli Cohen } 2988e126ba97SEli Cohen 2989e126ba97SEli Cohen struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 2990e126ba97SEli Cohen struct ib_ucontext *context, 2991e126ba97SEli Cohen struct ib_udata *udata) 2992e126ba97SEli Cohen { 2993e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibdev); 2994e126ba97SEli Cohen struct mlx5_ib_xrcd *xrcd; 2995e126ba97SEli Cohen int err; 2996e126ba97SEli Cohen 29979603b61dSJack Morgenstein if (!(dev->mdev->caps.flags & MLX5_DEV_CAP_FLAG_XRC)) 2998e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 2999e126ba97SEli Cohen 3000e126ba97SEli Cohen xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL); 3001e126ba97SEli Cohen if (!xrcd) 3002e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3003e126ba97SEli Cohen 30049603b61dSJack Morgenstein err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn); 3005e126ba97SEli Cohen if (err) { 3006e126ba97SEli Cohen kfree(xrcd); 3007e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3008e126ba97SEli Cohen } 3009e126ba97SEli Cohen 3010e126ba97SEli Cohen return &xrcd->ibxrcd; 3011e126ba97SEli Cohen } 3012e126ba97SEli Cohen 3013e126ba97SEli Cohen int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 3014e126ba97SEli Cohen { 3015e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(xrcd->device); 3016e126ba97SEli Cohen u32 xrcdn = to_mxrcd(xrcd)->xrcdn; 3017e126ba97SEli Cohen int err; 3018e126ba97SEli Cohen 30199603b61dSJack Morgenstein err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn); 3020e126ba97SEli Cohen if (err) { 3021e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn); 3022e126ba97SEli Cohen return err; 3023e126ba97SEli Cohen } 3024e126ba97SEli Cohen 3025e126ba97SEli Cohen kfree(xrcd); 3026e126ba97SEli Cohen 3027e126ba97SEli Cohen return 0; 3028e126ba97SEli Cohen } 3029