1e126ba97SEli Cohen /* 26cf0a15fSSaeed Mahameed * Copyright (c) 2013-2015, Mellanox Technologies. 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 74e126ba97SEli Cohen static int is_qp0(enum ib_qp_type qp_type) 75e126ba97SEli Cohen { 76e126ba97SEli Cohen return qp_type == IB_QPT_SMI; 77e126ba97SEli Cohen } 78e126ba97SEli Cohen 79e126ba97SEli Cohen static int is_qp1(enum ib_qp_type qp_type) 80e126ba97SEli Cohen { 81e126ba97SEli Cohen return qp_type == IB_QPT_GSI; 82e126ba97SEli Cohen } 83e126ba97SEli Cohen 84e126ba97SEli Cohen static int is_sqp(enum ib_qp_type qp_type) 85e126ba97SEli Cohen { 86e126ba97SEli Cohen return is_qp0(qp_type) || is_qp1(qp_type); 87e126ba97SEli Cohen } 88e126ba97SEli Cohen 89e126ba97SEli Cohen static void *get_wqe(struct mlx5_ib_qp *qp, int offset) 90e126ba97SEli Cohen { 91e126ba97SEli Cohen return mlx5_buf_offset(&qp->buf, offset); 92e126ba97SEli Cohen } 93e126ba97SEli Cohen 94e126ba97SEli Cohen static void *get_recv_wqe(struct mlx5_ib_qp *qp, int n) 95e126ba97SEli Cohen { 96e126ba97SEli Cohen return get_wqe(qp, qp->rq.offset + (n << qp->rq.wqe_shift)); 97e126ba97SEli Cohen } 98e126ba97SEli Cohen 99e126ba97SEli Cohen void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n) 100e126ba97SEli Cohen { 101e126ba97SEli Cohen return get_wqe(qp, qp->sq.offset + (n << MLX5_IB_SQ_STRIDE)); 102e126ba97SEli Cohen } 103e126ba97SEli Cohen 104c1395a2aSHaggai Eran /** 105c1395a2aSHaggai Eran * mlx5_ib_read_user_wqe() - Copy a user-space WQE to kernel space. 106c1395a2aSHaggai Eran * 107c1395a2aSHaggai Eran * @qp: QP to copy from. 108c1395a2aSHaggai Eran * @send: copy from the send queue when non-zero, use the receive queue 109c1395a2aSHaggai Eran * otherwise. 110c1395a2aSHaggai Eran * @wqe_index: index to start copying from. For send work queues, the 111c1395a2aSHaggai Eran * wqe_index is in units of MLX5_SEND_WQE_BB. 112c1395a2aSHaggai Eran * For receive work queue, it is the number of work queue 113c1395a2aSHaggai Eran * element in the queue. 114c1395a2aSHaggai Eran * @buffer: destination buffer. 115c1395a2aSHaggai Eran * @length: maximum number of bytes to copy. 116c1395a2aSHaggai Eran * 117c1395a2aSHaggai Eran * Copies at least a single WQE, but may copy more data. 118c1395a2aSHaggai Eran * 119c1395a2aSHaggai Eran * Return: the number of bytes copied, or an error code. 120c1395a2aSHaggai Eran */ 121c1395a2aSHaggai Eran int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index, 122c1395a2aSHaggai Eran void *buffer, u32 length) 123c1395a2aSHaggai Eran { 124c1395a2aSHaggai Eran struct ib_device *ibdev = qp->ibqp.device; 125c1395a2aSHaggai Eran struct mlx5_ib_dev *dev = to_mdev(ibdev); 126c1395a2aSHaggai Eran struct mlx5_ib_wq *wq = send ? &qp->sq : &qp->rq; 127c1395a2aSHaggai Eran size_t offset; 128c1395a2aSHaggai Eran size_t wq_end; 129c1395a2aSHaggai Eran struct ib_umem *umem = qp->umem; 130c1395a2aSHaggai Eran u32 first_copy_length; 131c1395a2aSHaggai Eran int wqe_length; 132c1395a2aSHaggai Eran int ret; 133c1395a2aSHaggai Eran 134c1395a2aSHaggai Eran if (wq->wqe_cnt == 0) { 135c1395a2aSHaggai Eran mlx5_ib_dbg(dev, "mlx5_ib_read_user_wqe for a QP with wqe_cnt == 0. qp_type: 0x%x\n", 136c1395a2aSHaggai Eran qp->ibqp.qp_type); 137c1395a2aSHaggai Eran return -EINVAL; 138c1395a2aSHaggai Eran } 139c1395a2aSHaggai Eran 140c1395a2aSHaggai Eran offset = wq->offset + ((wqe_index % wq->wqe_cnt) << wq->wqe_shift); 141c1395a2aSHaggai Eran wq_end = wq->offset + (wq->wqe_cnt << wq->wqe_shift); 142c1395a2aSHaggai Eran 143c1395a2aSHaggai Eran if (send && length < sizeof(struct mlx5_wqe_ctrl_seg)) 144c1395a2aSHaggai Eran return -EINVAL; 145c1395a2aSHaggai Eran 146c1395a2aSHaggai Eran if (offset > umem->length || 147c1395a2aSHaggai Eran (send && offset + sizeof(struct mlx5_wqe_ctrl_seg) > umem->length)) 148c1395a2aSHaggai Eran return -EINVAL; 149c1395a2aSHaggai Eran 150c1395a2aSHaggai Eran first_copy_length = min_t(u32, offset + length, wq_end) - offset; 151c1395a2aSHaggai Eran ret = ib_umem_copy_from(buffer, umem, offset, first_copy_length); 152c1395a2aSHaggai Eran if (ret) 153c1395a2aSHaggai Eran return ret; 154c1395a2aSHaggai Eran 155c1395a2aSHaggai Eran if (send) { 156c1395a2aSHaggai Eran struct mlx5_wqe_ctrl_seg *ctrl = buffer; 157c1395a2aSHaggai Eran int ds = be32_to_cpu(ctrl->qpn_ds) & MLX5_WQE_CTRL_DS_MASK; 158c1395a2aSHaggai Eran 159c1395a2aSHaggai Eran wqe_length = ds * MLX5_WQE_DS_UNITS; 160c1395a2aSHaggai Eran } else { 161c1395a2aSHaggai Eran wqe_length = 1 << wq->wqe_shift; 162c1395a2aSHaggai Eran } 163c1395a2aSHaggai Eran 164c1395a2aSHaggai Eran if (wqe_length <= first_copy_length) 165c1395a2aSHaggai Eran return first_copy_length; 166c1395a2aSHaggai Eran 167c1395a2aSHaggai Eran ret = ib_umem_copy_from(buffer + first_copy_length, umem, wq->offset, 168c1395a2aSHaggai Eran wqe_length - first_copy_length); 169c1395a2aSHaggai Eran if (ret) 170c1395a2aSHaggai Eran return ret; 171c1395a2aSHaggai Eran 172c1395a2aSHaggai Eran return wqe_length; 173c1395a2aSHaggai Eran } 174c1395a2aSHaggai Eran 175e126ba97SEli Cohen static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type) 176e126ba97SEli Cohen { 177e126ba97SEli Cohen struct ib_qp *ibqp = &to_mibqp(qp)->ibqp; 178e126ba97SEli Cohen struct ib_event event; 179e126ba97SEli Cohen 180e126ba97SEli Cohen if (type == MLX5_EVENT_TYPE_PATH_MIG) 181e126ba97SEli Cohen to_mibqp(qp)->port = to_mibqp(qp)->alt_port; 182e126ba97SEli Cohen 183e126ba97SEli Cohen if (ibqp->event_handler) { 184e126ba97SEli Cohen event.device = ibqp->device; 185e126ba97SEli Cohen event.element.qp = ibqp; 186e126ba97SEli Cohen switch (type) { 187e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG: 188e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG; 189e126ba97SEli Cohen break; 190e126ba97SEli Cohen case MLX5_EVENT_TYPE_COMM_EST: 191e126ba97SEli Cohen event.event = IB_EVENT_COMM_EST; 192e126ba97SEli Cohen break; 193e126ba97SEli Cohen case MLX5_EVENT_TYPE_SQ_DRAINED: 194e126ba97SEli Cohen event.event = IB_EVENT_SQ_DRAINED; 195e126ba97SEli Cohen break; 196e126ba97SEli Cohen case MLX5_EVENT_TYPE_SRQ_LAST_WQE: 197e126ba97SEli Cohen event.event = IB_EVENT_QP_LAST_WQE_REACHED; 198e126ba97SEli Cohen break; 199e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: 200e126ba97SEli Cohen event.event = IB_EVENT_QP_FATAL; 201e126ba97SEli Cohen break; 202e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG_FAILED: 203e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG_ERR; 204e126ba97SEli Cohen break; 205e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: 206e126ba97SEli Cohen event.event = IB_EVENT_QP_REQ_ERR; 207e126ba97SEli Cohen break; 208e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: 209e126ba97SEli Cohen event.event = IB_EVENT_QP_ACCESS_ERR; 210e126ba97SEli Cohen break; 211e126ba97SEli Cohen default: 212e126ba97SEli Cohen pr_warn("mlx5_ib: Unexpected event type %d on QP %06x\n", type, qp->qpn); 213e126ba97SEli Cohen return; 214e126ba97SEli Cohen } 215e126ba97SEli Cohen 216e126ba97SEli Cohen ibqp->event_handler(&event, ibqp->qp_context); 217e126ba97SEli Cohen } 218e126ba97SEli Cohen } 219e126ba97SEli Cohen 220e126ba97SEli Cohen static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap, 221e126ba97SEli Cohen int has_rq, struct mlx5_ib_qp *qp, struct mlx5_ib_create_qp *ucmd) 222e126ba97SEli Cohen { 223e126ba97SEli Cohen int wqe_size; 224e126ba97SEli Cohen int wq_size; 225e126ba97SEli Cohen 226e126ba97SEli Cohen /* Sanity check RQ size before proceeding */ 227938fe83cSSaeed Mahameed if (cap->max_recv_wr > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) 228e126ba97SEli Cohen return -EINVAL; 229e126ba97SEli Cohen 230e126ba97SEli Cohen if (!has_rq) { 231e126ba97SEli Cohen qp->rq.max_gs = 0; 232e126ba97SEli Cohen qp->rq.wqe_cnt = 0; 233e126ba97SEli Cohen qp->rq.wqe_shift = 0; 234e126ba97SEli Cohen } else { 235e126ba97SEli Cohen if (ucmd) { 236e126ba97SEli Cohen qp->rq.wqe_cnt = ucmd->rq_wqe_count; 237e126ba97SEli Cohen qp->rq.wqe_shift = ucmd->rq_wqe_shift; 238e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 239e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 240e126ba97SEli Cohen } else { 241e126ba97SEli Cohen wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0; 242e126ba97SEli Cohen wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg); 243e126ba97SEli Cohen wqe_size = roundup_pow_of_two(wqe_size); 244e126ba97SEli Cohen wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size; 245e126ba97SEli Cohen wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB); 246e126ba97SEli Cohen qp->rq.wqe_cnt = wq_size / wqe_size; 247938fe83cSSaeed Mahameed if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq)) { 248e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d, max %d\n", 249e126ba97SEli Cohen wqe_size, 250938fe83cSSaeed Mahameed MLX5_CAP_GEN(dev->mdev, 251938fe83cSSaeed Mahameed max_wqe_sz_rq)); 252e126ba97SEli Cohen return -EINVAL; 253e126ba97SEli Cohen } 254e126ba97SEli Cohen qp->rq.wqe_shift = ilog2(wqe_size); 255e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 256e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 257e126ba97SEli Cohen } 258e126ba97SEli Cohen } 259e126ba97SEli Cohen 260e126ba97SEli Cohen return 0; 261e126ba97SEli Cohen } 262e126ba97SEli Cohen 263e126ba97SEli Cohen static int sq_overhead(enum ib_qp_type qp_type) 264e126ba97SEli Cohen { 265618af384SAndi Shyti int size = 0; 266e126ba97SEli Cohen 267e126ba97SEli Cohen switch (qp_type) { 268e126ba97SEli Cohen case IB_QPT_XRC_INI: 269b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_xrc_seg); 270e126ba97SEli Cohen /* fall through */ 271e126ba97SEli Cohen case IB_QPT_RC: 272e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 273e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg) + 274e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 275e126ba97SEli Cohen break; 276e126ba97SEli Cohen 277b125a54bSEli Cohen case IB_QPT_XRC_TGT: 278b125a54bSEli Cohen return 0; 279b125a54bSEli Cohen 280e126ba97SEli Cohen case IB_QPT_UC: 281b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 2829e65dc37SEli Cohen sizeof(struct mlx5_wqe_raddr_seg) + 2839e65dc37SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 2849e65dc37SEli Cohen sizeof(struct mlx5_mkey_seg); 285e126ba97SEli Cohen break; 286e126ba97SEli Cohen 287e126ba97SEli Cohen case IB_QPT_UD: 288e126ba97SEli Cohen case IB_QPT_SMI: 289e126ba97SEli Cohen case IB_QPT_GSI: 290b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 291e126ba97SEli Cohen sizeof(struct mlx5_wqe_datagram_seg); 292e126ba97SEli Cohen break; 293e126ba97SEli Cohen 294e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 295b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 296e126ba97SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 297e126ba97SEli Cohen sizeof(struct mlx5_mkey_seg); 298e126ba97SEli Cohen break; 299e126ba97SEli Cohen 300e126ba97SEli Cohen default: 301e126ba97SEli Cohen return -EINVAL; 302e126ba97SEli Cohen } 303e126ba97SEli Cohen 304e126ba97SEli Cohen return size; 305e126ba97SEli Cohen } 306e126ba97SEli Cohen 307e126ba97SEli Cohen static int calc_send_wqe(struct ib_qp_init_attr *attr) 308e126ba97SEli Cohen { 309e126ba97SEli Cohen int inl_size = 0; 310e126ba97SEli Cohen int size; 311e126ba97SEli Cohen 312e126ba97SEli Cohen size = sq_overhead(attr->qp_type); 313e126ba97SEli Cohen if (size < 0) 314e126ba97SEli Cohen return size; 315e126ba97SEli Cohen 316e126ba97SEli Cohen if (attr->cap.max_inline_data) { 317e126ba97SEli Cohen inl_size = size + sizeof(struct mlx5_wqe_inline_seg) + 318e126ba97SEli Cohen attr->cap.max_inline_data; 319e126ba97SEli Cohen } 320e126ba97SEli Cohen 321e126ba97SEli Cohen size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg); 322e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN && 323e1e66cc2SSagi Grimberg ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE) 324e1e66cc2SSagi Grimberg return MLX5_SIG_WQE_SIZE; 325e1e66cc2SSagi Grimberg else 326e126ba97SEli Cohen return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB); 327e126ba97SEli Cohen } 328e126ba97SEli Cohen 329e126ba97SEli Cohen static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 330e126ba97SEli Cohen struct mlx5_ib_qp *qp) 331e126ba97SEli Cohen { 332e126ba97SEli Cohen int wqe_size; 333e126ba97SEli Cohen int wq_size; 334e126ba97SEli Cohen 335e126ba97SEli Cohen if (!attr->cap.max_send_wr) 336e126ba97SEli Cohen return 0; 337e126ba97SEli Cohen 338e126ba97SEli Cohen wqe_size = calc_send_wqe(attr); 339e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size); 340e126ba97SEli Cohen if (wqe_size < 0) 341e126ba97SEli Cohen return wqe_size; 342e126ba97SEli Cohen 343938fe83cSSaeed Mahameed if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) { 344b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", 345938fe83cSSaeed Mahameed wqe_size, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)); 346e126ba97SEli Cohen return -EINVAL; 347e126ba97SEli Cohen } 348e126ba97SEli Cohen 349e126ba97SEli Cohen qp->max_inline_data = wqe_size - sq_overhead(attr->qp_type) - 350e126ba97SEli Cohen sizeof(struct mlx5_wqe_inline_seg); 351e126ba97SEli Cohen attr->cap.max_inline_data = qp->max_inline_data; 352e126ba97SEli Cohen 353e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) 354e1e66cc2SSagi Grimberg qp->signature_en = true; 355e1e66cc2SSagi Grimberg 356e126ba97SEli Cohen wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); 357e126ba97SEli Cohen qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; 358938fe83cSSaeed Mahameed if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) { 359b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", 360938fe83cSSaeed Mahameed qp->sq.wqe_cnt, 361938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)); 362b125a54bSEli Cohen return -ENOMEM; 363b125a54bSEli Cohen } 364e126ba97SEli Cohen qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 365e126ba97SEli Cohen qp->sq.max_gs = attr->cap.max_send_sge; 366b125a54bSEli Cohen qp->sq.max_post = wq_size / wqe_size; 367b125a54bSEli Cohen attr->cap.max_send_wr = qp->sq.max_post; 368e126ba97SEli Cohen 369e126ba97SEli Cohen return wq_size; 370e126ba97SEli Cohen } 371e126ba97SEli Cohen 372e126ba97SEli Cohen static int set_user_buf_size(struct mlx5_ib_dev *dev, 373e126ba97SEli Cohen struct mlx5_ib_qp *qp, 374e126ba97SEli Cohen struct mlx5_ib_create_qp *ucmd) 375e126ba97SEli Cohen { 376e126ba97SEli Cohen int desc_sz = 1 << qp->sq.wqe_shift; 377e126ba97SEli Cohen 378938fe83cSSaeed Mahameed if (desc_sz > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) { 379e126ba97SEli Cohen mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n", 380938fe83cSSaeed Mahameed desc_sz, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)); 381e126ba97SEli Cohen return -EINVAL; 382e126ba97SEli Cohen } 383e126ba97SEli Cohen 384e126ba97SEli Cohen if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) { 385e126ba97SEli Cohen mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n", 386e126ba97SEli Cohen ucmd->sq_wqe_count, ucmd->sq_wqe_count); 387e126ba97SEli Cohen return -EINVAL; 388e126ba97SEli Cohen } 389e126ba97SEli Cohen 390e126ba97SEli Cohen qp->sq.wqe_cnt = ucmd->sq_wqe_count; 391e126ba97SEli Cohen 392938fe83cSSaeed Mahameed if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) { 393e126ba97SEli Cohen mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n", 394938fe83cSSaeed Mahameed qp->sq.wqe_cnt, 395938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)); 396e126ba97SEli Cohen return -EINVAL; 397e126ba97SEli Cohen } 398e126ba97SEli Cohen 399e126ba97SEli Cohen qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) + 400e126ba97SEli Cohen (qp->sq.wqe_cnt << 6); 401e126ba97SEli Cohen 402e126ba97SEli Cohen return 0; 403e126ba97SEli Cohen } 404e126ba97SEli Cohen 405e126ba97SEli Cohen static int qp_has_rq(struct ib_qp_init_attr *attr) 406e126ba97SEli Cohen { 407e126ba97SEli Cohen if (attr->qp_type == IB_QPT_XRC_INI || 408e126ba97SEli Cohen attr->qp_type == IB_QPT_XRC_TGT || attr->srq || 409e126ba97SEli Cohen attr->qp_type == MLX5_IB_QPT_REG_UMR || 410e126ba97SEli Cohen !attr->cap.max_recv_wr) 411e126ba97SEli Cohen return 0; 412e126ba97SEli Cohen 413e126ba97SEli Cohen return 1; 414e126ba97SEli Cohen } 415e126ba97SEli Cohen 416c1be5232SEli Cohen static int first_med_uuar(void) 417c1be5232SEli Cohen { 418c1be5232SEli Cohen return 1; 419c1be5232SEli Cohen } 420c1be5232SEli Cohen 421c1be5232SEli Cohen static int next_uuar(int n) 422c1be5232SEli Cohen { 423c1be5232SEli Cohen n++; 424c1be5232SEli Cohen 425c1be5232SEli Cohen while (((n % 4) & 2)) 426c1be5232SEli Cohen n++; 427c1be5232SEli Cohen 428c1be5232SEli Cohen return n; 429c1be5232SEli Cohen } 430c1be5232SEli Cohen 431c1be5232SEli Cohen static int num_med_uuar(struct mlx5_uuar_info *uuari) 432c1be5232SEli Cohen { 433c1be5232SEli Cohen int n; 434c1be5232SEli Cohen 435c1be5232SEli Cohen n = uuari->num_uars * MLX5_NON_FP_BF_REGS_PER_PAGE - 436c1be5232SEli Cohen uuari->num_low_latency_uuars - 1; 437c1be5232SEli Cohen 438c1be5232SEli Cohen return n >= 0 ? n : 0; 439c1be5232SEli Cohen } 440c1be5232SEli Cohen 441c1be5232SEli Cohen static int max_uuari(struct mlx5_uuar_info *uuari) 442c1be5232SEli Cohen { 443c1be5232SEli Cohen return uuari->num_uars * 4; 444c1be5232SEli Cohen } 445c1be5232SEli Cohen 446c1be5232SEli Cohen static int first_hi_uuar(struct mlx5_uuar_info *uuari) 447c1be5232SEli Cohen { 448c1be5232SEli Cohen int med; 449c1be5232SEli Cohen int i; 450c1be5232SEli Cohen int t; 451c1be5232SEli Cohen 452c1be5232SEli Cohen med = num_med_uuar(uuari); 453c1be5232SEli Cohen for (t = 0, i = first_med_uuar();; i = next_uuar(i)) { 454c1be5232SEli Cohen t++; 455c1be5232SEli Cohen if (t == med) 456c1be5232SEli Cohen return next_uuar(i); 457c1be5232SEli Cohen } 458c1be5232SEli Cohen 459c1be5232SEli Cohen return 0; 460c1be5232SEli Cohen } 461c1be5232SEli Cohen 462e126ba97SEli Cohen static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari) 463e126ba97SEli Cohen { 464e126ba97SEli Cohen int i; 465e126ba97SEli Cohen 466c1be5232SEli Cohen for (i = first_hi_uuar(uuari); i < max_uuari(uuari); i = next_uuar(i)) { 467e126ba97SEli Cohen if (!test_bit(i, uuari->bitmap)) { 468e126ba97SEli Cohen set_bit(i, uuari->bitmap); 469e126ba97SEli Cohen uuari->count[i]++; 470e126ba97SEli Cohen return i; 471e126ba97SEli Cohen } 472e126ba97SEli Cohen } 473e126ba97SEli Cohen 474e126ba97SEli Cohen return -ENOMEM; 475e126ba97SEli Cohen } 476e126ba97SEli Cohen 477e126ba97SEli Cohen static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari) 478e126ba97SEli Cohen { 479c1be5232SEli Cohen int minidx = first_med_uuar(); 480e126ba97SEli Cohen int i; 481e126ba97SEli Cohen 482c1be5232SEli Cohen for (i = first_med_uuar(); i < first_hi_uuar(uuari); i = next_uuar(i)) { 483e126ba97SEli Cohen if (uuari->count[i] < uuari->count[minidx]) 484e126ba97SEli Cohen minidx = i; 485e126ba97SEli Cohen } 486e126ba97SEli Cohen 487e126ba97SEli Cohen uuari->count[minidx]++; 488e126ba97SEli Cohen return minidx; 489e126ba97SEli Cohen } 490e126ba97SEli Cohen 491e126ba97SEli Cohen static int alloc_uuar(struct mlx5_uuar_info *uuari, 492e126ba97SEli Cohen enum mlx5_ib_latency_class lat) 493e126ba97SEli Cohen { 494e126ba97SEli Cohen int uuarn = -EINVAL; 495e126ba97SEli Cohen 496e126ba97SEli Cohen mutex_lock(&uuari->lock); 497e126ba97SEli Cohen switch (lat) { 498e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_LOW: 499e126ba97SEli Cohen uuarn = 0; 500e126ba97SEli Cohen uuari->count[uuarn]++; 501e126ba97SEli Cohen break; 502e126ba97SEli Cohen 503e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_MEDIUM: 50478c0f98cSEli Cohen if (uuari->ver < 2) 50578c0f98cSEli Cohen uuarn = -ENOMEM; 50678c0f98cSEli Cohen else 507e126ba97SEli Cohen uuarn = alloc_med_class_uuar(uuari); 508e126ba97SEli Cohen break; 509e126ba97SEli Cohen 510e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_HIGH: 51178c0f98cSEli Cohen if (uuari->ver < 2) 51278c0f98cSEli Cohen uuarn = -ENOMEM; 51378c0f98cSEli Cohen else 514e126ba97SEli Cohen uuarn = alloc_high_class_uuar(uuari); 515e126ba97SEli Cohen break; 516e126ba97SEli Cohen 517e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_FAST_PATH: 518e126ba97SEli Cohen uuarn = 2; 519e126ba97SEli Cohen break; 520e126ba97SEli Cohen } 521e126ba97SEli Cohen mutex_unlock(&uuari->lock); 522e126ba97SEli Cohen 523e126ba97SEli Cohen return uuarn; 524e126ba97SEli Cohen } 525e126ba97SEli Cohen 526e126ba97SEli Cohen static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 527e126ba97SEli Cohen { 528e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 529e126ba97SEli Cohen --uuari->count[uuarn]; 530e126ba97SEli Cohen } 531e126ba97SEli Cohen 532e126ba97SEli Cohen static void free_high_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 533e126ba97SEli Cohen { 534e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 535e126ba97SEli Cohen --uuari->count[uuarn]; 536e126ba97SEli Cohen } 537e126ba97SEli Cohen 538e126ba97SEli Cohen static void free_uuar(struct mlx5_uuar_info *uuari, int uuarn) 539e126ba97SEli Cohen { 540e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 541e126ba97SEli Cohen int high_uuar = nuuars - uuari->num_low_latency_uuars; 542e126ba97SEli Cohen 543e126ba97SEli Cohen mutex_lock(&uuari->lock); 544e126ba97SEli Cohen if (uuarn == 0) { 545e126ba97SEli Cohen --uuari->count[uuarn]; 546e126ba97SEli Cohen goto out; 547e126ba97SEli Cohen } 548e126ba97SEli Cohen 549e126ba97SEli Cohen if (uuarn < high_uuar) { 550e126ba97SEli Cohen free_med_class_uuar(uuari, uuarn); 551e126ba97SEli Cohen goto out; 552e126ba97SEli Cohen } 553e126ba97SEli Cohen 554e126ba97SEli Cohen free_high_class_uuar(uuari, uuarn); 555e126ba97SEli Cohen 556e126ba97SEli Cohen out: 557e126ba97SEli Cohen mutex_unlock(&uuari->lock); 558e126ba97SEli Cohen } 559e126ba97SEli Cohen 560e126ba97SEli Cohen static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state) 561e126ba97SEli Cohen { 562e126ba97SEli Cohen switch (state) { 563e126ba97SEli Cohen case IB_QPS_RESET: return MLX5_QP_STATE_RST; 564e126ba97SEli Cohen case IB_QPS_INIT: return MLX5_QP_STATE_INIT; 565e126ba97SEli Cohen case IB_QPS_RTR: return MLX5_QP_STATE_RTR; 566e126ba97SEli Cohen case IB_QPS_RTS: return MLX5_QP_STATE_RTS; 567e126ba97SEli Cohen case IB_QPS_SQD: return MLX5_QP_STATE_SQD; 568e126ba97SEli Cohen case IB_QPS_SQE: return MLX5_QP_STATE_SQER; 569e126ba97SEli Cohen case IB_QPS_ERR: return MLX5_QP_STATE_ERR; 570e126ba97SEli Cohen default: return -1; 571e126ba97SEli Cohen } 572e126ba97SEli Cohen } 573e126ba97SEli Cohen 574e126ba97SEli Cohen static int to_mlx5_st(enum ib_qp_type type) 575e126ba97SEli Cohen { 576e126ba97SEli Cohen switch (type) { 577e126ba97SEli Cohen case IB_QPT_RC: return MLX5_QP_ST_RC; 578e126ba97SEli Cohen case IB_QPT_UC: return MLX5_QP_ST_UC; 579e126ba97SEli Cohen case IB_QPT_UD: return MLX5_QP_ST_UD; 580e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR; 581e126ba97SEli Cohen case IB_QPT_XRC_INI: 582e126ba97SEli Cohen case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC; 583e126ba97SEli Cohen case IB_QPT_SMI: return MLX5_QP_ST_QP0; 584e126ba97SEli Cohen case IB_QPT_GSI: return MLX5_QP_ST_QP1; 585e126ba97SEli Cohen case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6; 586e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE; 587e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 588e126ba97SEli Cohen case IB_QPT_MAX: 589e126ba97SEli Cohen default: return -EINVAL; 590e126ba97SEli Cohen } 591e126ba97SEli Cohen } 592e126ba97SEli Cohen 593e126ba97SEli Cohen static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn) 594e126ba97SEli Cohen { 595e126ba97SEli Cohen return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index; 596e126ba97SEli Cohen } 597e126ba97SEli Cohen 598e126ba97SEli Cohen static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, 599e126ba97SEli Cohen struct mlx5_ib_qp *qp, struct ib_udata *udata, 600e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, 601e126ba97SEli Cohen struct mlx5_ib_create_qp_resp *resp, int *inlen) 602e126ba97SEli Cohen { 603e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 604e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 6059e9c47d0SEli Cohen int page_shift = 0; 606e126ba97SEli Cohen int uar_index; 607e126ba97SEli Cohen int npages; 6089e9c47d0SEli Cohen u32 offset = 0; 609e126ba97SEli Cohen int uuarn; 6109e9c47d0SEli Cohen int ncont = 0; 611e126ba97SEli Cohen int err; 612e126ba97SEli Cohen 613e126ba97SEli Cohen err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 614e126ba97SEli Cohen if (err) { 615e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 616e126ba97SEli Cohen return err; 617e126ba97SEli Cohen } 618e126ba97SEli Cohen 619e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 620e126ba97SEli Cohen /* 621e126ba97SEli Cohen * TBD: should come from the verbs when we have the API 622e126ba97SEli Cohen */ 623e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH); 624e126ba97SEli Cohen if (uuarn < 0) { 625e126ba97SEli Cohen mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n"); 626c1be5232SEli Cohen mlx5_ib_dbg(dev, "reverting to medium latency\n"); 627c1be5232SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_MEDIUM); 628c1be5232SEli Cohen if (uuarn < 0) { 629c1be5232SEli Cohen mlx5_ib_dbg(dev, "failed to allocate medium latency UUAR\n"); 630e126ba97SEli Cohen mlx5_ib_dbg(dev, "reverting to high latency\n"); 631e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW); 632e126ba97SEli Cohen if (uuarn < 0) { 633c1be5232SEli Cohen mlx5_ib_warn(dev, "uuar allocation failed\n"); 634e126ba97SEli Cohen return uuarn; 635e126ba97SEli Cohen } 636e126ba97SEli Cohen } 637c1be5232SEli Cohen } 638e126ba97SEli Cohen 639e126ba97SEli Cohen uar_index = uuarn_to_uar_index(&context->uuari, uuarn); 640e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index); 641e126ba97SEli Cohen 64248fea837SHaggai Eran qp->rq.offset = 0; 64348fea837SHaggai Eran qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 64448fea837SHaggai Eran qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 64548fea837SHaggai Eran 646e126ba97SEli Cohen err = set_user_buf_size(dev, qp, &ucmd); 647e126ba97SEli Cohen if (err) 648e126ba97SEli Cohen goto err_uuar; 649e126ba97SEli Cohen 6509e9c47d0SEli Cohen if (ucmd.buf_addr && qp->buf_size) { 651e126ba97SEli Cohen qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, 652e126ba97SEli Cohen qp->buf_size, 0, 0); 653e126ba97SEli Cohen if (IS_ERR(qp->umem)) { 654e126ba97SEli Cohen mlx5_ib_dbg(dev, "umem_get failed\n"); 655e126ba97SEli Cohen err = PTR_ERR(qp->umem); 656e126ba97SEli Cohen goto err_uuar; 657e126ba97SEli Cohen } 6589e9c47d0SEli Cohen } else { 6599e9c47d0SEli Cohen qp->umem = NULL; 6609e9c47d0SEli Cohen } 661e126ba97SEli Cohen 6629e9c47d0SEli Cohen if (qp->umem) { 663e126ba97SEli Cohen mlx5_ib_cont_pages(qp->umem, ucmd.buf_addr, &npages, &page_shift, 664e126ba97SEli Cohen &ncont, NULL); 665e126ba97SEli Cohen err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift, &offset); 666e126ba97SEli Cohen if (err) { 667e126ba97SEli Cohen mlx5_ib_warn(dev, "bad offset\n"); 668e126ba97SEli Cohen goto err_umem; 669e126ba97SEli Cohen } 670e126ba97SEli Cohen mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n", 671e126ba97SEli Cohen ucmd.buf_addr, qp->buf_size, npages, page_shift, ncont, offset); 6729e9c47d0SEli Cohen } 673e126ba97SEli Cohen 674e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont; 675e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 676e126ba97SEli Cohen if (!*in) { 677e126ba97SEli Cohen err = -ENOMEM; 678e126ba97SEli Cohen goto err_umem; 679e126ba97SEli Cohen } 6809e9c47d0SEli Cohen if (qp->umem) 681e126ba97SEli Cohen mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); 682e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 6831b77d2bdSEli Cohen cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 684e126ba97SEli Cohen (*in)->ctx.params2 = cpu_to_be32(offset << 6); 685e126ba97SEli Cohen 686e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 687e126ba97SEli Cohen resp->uuar_index = uuarn; 688e126ba97SEli Cohen qp->uuarn = uuarn; 689e126ba97SEli Cohen 690e126ba97SEli Cohen err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db); 691e126ba97SEli Cohen if (err) { 692e126ba97SEli Cohen mlx5_ib_dbg(dev, "map failed\n"); 693e126ba97SEli Cohen goto err_free; 694e126ba97SEli Cohen } 695e126ba97SEli Cohen 696e126ba97SEli Cohen err = ib_copy_to_udata(udata, resp, sizeof(*resp)); 697e126ba97SEli Cohen if (err) { 698e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 699e126ba97SEli Cohen goto err_unmap; 700e126ba97SEli Cohen } 701e126ba97SEli Cohen qp->create_type = MLX5_QP_USER; 702e126ba97SEli Cohen 703e126ba97SEli Cohen return 0; 704e126ba97SEli Cohen 705e126ba97SEli Cohen err_unmap: 706e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 707e126ba97SEli Cohen 708e126ba97SEli Cohen err_free: 709479163f4SAl Viro kvfree(*in); 710e126ba97SEli Cohen 711e126ba97SEli Cohen err_umem: 7129e9c47d0SEli Cohen if (qp->umem) 713e126ba97SEli Cohen ib_umem_release(qp->umem); 714e126ba97SEli Cohen 715e126ba97SEli Cohen err_uuar: 716e126ba97SEli Cohen free_uuar(&context->uuari, uuarn); 717e126ba97SEli Cohen return err; 718e126ba97SEli Cohen } 719e126ba97SEli Cohen 720e126ba97SEli Cohen static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp) 721e126ba97SEli Cohen { 722e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 723e126ba97SEli Cohen 724e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 725e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 7269e9c47d0SEli Cohen if (qp->umem) 727e126ba97SEli Cohen ib_umem_release(qp->umem); 728e126ba97SEli Cohen free_uuar(&context->uuari, qp->uuarn); 729e126ba97SEli Cohen } 730e126ba97SEli Cohen 731e126ba97SEli Cohen static int create_kernel_qp(struct mlx5_ib_dev *dev, 732e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 733e126ba97SEli Cohen struct mlx5_ib_qp *qp, 734e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, int *inlen) 735e126ba97SEli Cohen { 736e126ba97SEli Cohen enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW; 737e126ba97SEli Cohen struct mlx5_uuar_info *uuari; 738e126ba97SEli Cohen int uar_index; 739e126ba97SEli Cohen int uuarn; 740e126ba97SEli Cohen int err; 741e126ba97SEli Cohen 7429603b61dSJack Morgenstein uuari = &dev->mdev->priv.uuari; 743652c1a05SOr Gerlitz if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)) 7441a4c3a3dSEli Cohen return -EINVAL; 745e126ba97SEli Cohen 746e126ba97SEli Cohen if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR) 747e126ba97SEli Cohen lc = MLX5_IB_LATENCY_CLASS_FAST_PATH; 748e126ba97SEli Cohen 749e126ba97SEli Cohen uuarn = alloc_uuar(uuari, lc); 750e126ba97SEli Cohen if (uuarn < 0) { 751e126ba97SEli Cohen mlx5_ib_dbg(dev, "\n"); 752e126ba97SEli Cohen return -ENOMEM; 753e126ba97SEli Cohen } 754e126ba97SEli Cohen 755e126ba97SEli Cohen qp->bf = &uuari->bfs[uuarn]; 756e126ba97SEli Cohen uar_index = qp->bf->uar->index; 757e126ba97SEli Cohen 758e126ba97SEli Cohen err = calc_sq_size(dev, init_attr, qp); 759e126ba97SEli Cohen if (err < 0) { 760e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 761e126ba97SEli Cohen goto err_uuar; 762e126ba97SEli Cohen } 763e126ba97SEli Cohen 764e126ba97SEli Cohen qp->rq.offset = 0; 765e126ba97SEli Cohen qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 766e126ba97SEli Cohen qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); 767e126ba97SEli Cohen 76864ffaa21SAmir Vadai err = mlx5_buf_alloc(dev->mdev, qp->buf_size, &qp->buf); 769e126ba97SEli Cohen if (err) { 770e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 771e126ba97SEli Cohen goto err_uuar; 772e126ba97SEli Cohen } 773e126ba97SEli Cohen 774e126ba97SEli Cohen qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt); 775e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * qp->buf.npages; 776e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 777e126ba97SEli Cohen if (!*in) { 778e126ba97SEli Cohen err = -ENOMEM; 779e126ba97SEli Cohen goto err_buf; 780e126ba97SEli Cohen } 781e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 7821b77d2bdSEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 7831b77d2bdSEli Cohen cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 784e126ba97SEli Cohen /* Set "fast registration enabled" for all kernel QPs */ 785e126ba97SEli Cohen (*in)->ctx.params1 |= cpu_to_be32(1 << 11); 786e126ba97SEli Cohen (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); 787e126ba97SEli Cohen 788e126ba97SEli Cohen mlx5_fill_page_array(&qp->buf, (*in)->pas); 789e126ba97SEli Cohen 7909603b61dSJack Morgenstein err = mlx5_db_alloc(dev->mdev, &qp->db); 791e126ba97SEli Cohen if (err) { 792e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 793e126ba97SEli Cohen goto err_free; 794e126ba97SEli Cohen } 795e126ba97SEli Cohen 796e126ba97SEli Cohen qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL); 797e126ba97SEli Cohen qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL); 798e126ba97SEli Cohen qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL); 799e126ba97SEli Cohen qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL); 800e126ba97SEli Cohen qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL); 801e126ba97SEli Cohen 802e126ba97SEli Cohen if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid || 803e126ba97SEli Cohen !qp->sq.w_list || !qp->sq.wqe_head) { 804e126ba97SEli Cohen err = -ENOMEM; 805e126ba97SEli Cohen goto err_wrid; 806e126ba97SEli Cohen } 807e126ba97SEli Cohen qp->create_type = MLX5_QP_KERNEL; 808e126ba97SEli Cohen 809e126ba97SEli Cohen return 0; 810e126ba97SEli Cohen 811e126ba97SEli Cohen err_wrid: 8129603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 813e126ba97SEli Cohen kfree(qp->sq.wqe_head); 814e126ba97SEli Cohen kfree(qp->sq.w_list); 815e126ba97SEli Cohen kfree(qp->sq.wrid); 816e126ba97SEli Cohen kfree(qp->sq.wr_data); 817e126ba97SEli Cohen kfree(qp->rq.wrid); 818e126ba97SEli Cohen 819e126ba97SEli Cohen err_free: 820479163f4SAl Viro kvfree(*in); 821e126ba97SEli Cohen 822e126ba97SEli Cohen err_buf: 8239603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 824e126ba97SEli Cohen 825e126ba97SEli Cohen err_uuar: 8269603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, uuarn); 827e126ba97SEli Cohen return err; 828e126ba97SEli Cohen } 829e126ba97SEli Cohen 830e126ba97SEli Cohen static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 831e126ba97SEli Cohen { 8329603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 833e126ba97SEli Cohen kfree(qp->sq.wqe_head); 834e126ba97SEli Cohen kfree(qp->sq.w_list); 835e126ba97SEli Cohen kfree(qp->sq.wrid); 836e126ba97SEli Cohen kfree(qp->sq.wr_data); 837e126ba97SEli Cohen kfree(qp->rq.wrid); 8389603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 8399603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, qp->bf->uuarn); 840e126ba97SEli Cohen } 841e126ba97SEli Cohen 842e126ba97SEli Cohen static __be32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr) 843e126ba97SEli Cohen { 844e126ba97SEli Cohen if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) || 845e126ba97SEli Cohen (attr->qp_type == IB_QPT_XRC_INI)) 846e126ba97SEli Cohen return cpu_to_be32(MLX5_SRQ_RQ); 847e126ba97SEli Cohen else if (!qp->has_rq) 848e126ba97SEli Cohen return cpu_to_be32(MLX5_ZERO_LEN_RQ); 849e126ba97SEli Cohen else 850e126ba97SEli Cohen return cpu_to_be32(MLX5_NON_ZERO_RQ); 851e126ba97SEli Cohen } 852e126ba97SEli Cohen 853e126ba97SEli Cohen static int is_connected(enum ib_qp_type qp_type) 854e126ba97SEli Cohen { 855e126ba97SEli Cohen if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC) 856e126ba97SEli Cohen return 1; 857e126ba97SEli Cohen 858e126ba97SEli Cohen return 0; 859e126ba97SEli Cohen } 860e126ba97SEli Cohen 861e126ba97SEli Cohen static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, 862e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 863e126ba97SEli Cohen struct ib_udata *udata, struct mlx5_ib_qp *qp) 864e126ba97SEli Cohen { 865e126ba97SEli Cohen struct mlx5_ib_resources *devr = &dev->devr; 866938fe83cSSaeed Mahameed struct mlx5_core_dev *mdev = dev->mdev; 867e126ba97SEli Cohen struct mlx5_ib_create_qp_resp resp; 868e126ba97SEli Cohen struct mlx5_create_qp_mbox_in *in; 869e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 870e126ba97SEli Cohen int inlen = sizeof(*in); 871e126ba97SEli Cohen int err; 872e126ba97SEli Cohen 8736aec21f6SHaggai Eran mlx5_ib_odp_create_qp(qp); 8746aec21f6SHaggai Eran 875e126ba97SEli Cohen mutex_init(&qp->mutex); 876e126ba97SEli Cohen spin_lock_init(&qp->sq.lock); 877e126ba97SEli Cohen spin_lock_init(&qp->rq.lock); 878e126ba97SEli Cohen 879f360d88aSEli Cohen if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) { 880938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(mdev, block_lb_mc)) { 881f360d88aSEli Cohen mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n"); 882f360d88aSEli Cohen return -EINVAL; 883f360d88aSEli Cohen } else { 884f360d88aSEli Cohen qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK; 885f360d88aSEli Cohen } 886f360d88aSEli Cohen } 887f360d88aSEli Cohen 888e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) 889e126ba97SEli Cohen qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE; 890e126ba97SEli Cohen 891e126ba97SEli Cohen if (pd && pd->uobject) { 892e126ba97SEli Cohen if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { 893e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 894e126ba97SEli Cohen return -EFAULT; 895e126ba97SEli Cohen } 896e126ba97SEli Cohen 897e126ba97SEli Cohen qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); 898e126ba97SEli Cohen qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); 899e126ba97SEli Cohen } else { 900e126ba97SEli Cohen qp->wq_sig = !!wq_signature; 901e126ba97SEli Cohen } 902e126ba97SEli Cohen 903e126ba97SEli Cohen qp->has_rq = qp_has_rq(init_attr); 904e126ba97SEli Cohen err = set_rq_size(dev, &init_attr->cap, qp->has_rq, 905e126ba97SEli Cohen qp, (pd && pd->uobject) ? &ucmd : NULL); 906e126ba97SEli Cohen if (err) { 907e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 908e126ba97SEli Cohen return err; 909e126ba97SEli Cohen } 910e126ba97SEli Cohen 911e126ba97SEli Cohen if (pd) { 912e126ba97SEli Cohen if (pd->uobject) { 913938fe83cSSaeed Mahameed __u32 max_wqes = 914938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); 915e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count); 916e126ba97SEli Cohen if (ucmd.rq_wqe_shift != qp->rq.wqe_shift || 917e126ba97SEli Cohen ucmd.rq_wqe_count != qp->rq.wqe_cnt) { 918e126ba97SEli Cohen mlx5_ib_dbg(dev, "invalid rq params\n"); 919e126ba97SEli Cohen return -EINVAL; 920e126ba97SEli Cohen } 921938fe83cSSaeed Mahameed if (ucmd.sq_wqe_count > max_wqes) { 922e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n", 923938fe83cSSaeed Mahameed ucmd.sq_wqe_count, max_wqes); 924e126ba97SEli Cohen return -EINVAL; 925e126ba97SEli Cohen } 926e126ba97SEli Cohen err = create_user_qp(dev, pd, qp, udata, &in, &resp, &inlen); 927e126ba97SEli Cohen if (err) 928e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 929e126ba97SEli Cohen } else { 930e126ba97SEli Cohen err = create_kernel_qp(dev, init_attr, qp, &in, &inlen); 931e126ba97SEli Cohen if (err) 932e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 933e126ba97SEli Cohen else 934e126ba97SEli Cohen qp->pa_lkey = to_mpd(pd)->pa_lkey; 935e126ba97SEli Cohen } 936e126ba97SEli Cohen 937e126ba97SEli Cohen if (err) 938e126ba97SEli Cohen return err; 939e126ba97SEli Cohen } else { 940e126ba97SEli Cohen in = mlx5_vzalloc(sizeof(*in)); 941e126ba97SEli Cohen if (!in) 942e126ba97SEli Cohen return -ENOMEM; 943e126ba97SEli Cohen 944e126ba97SEli Cohen qp->create_type = MLX5_QP_EMPTY; 945e126ba97SEli Cohen } 946e126ba97SEli Cohen 947e126ba97SEli Cohen if (is_sqp(init_attr->qp_type)) 948e126ba97SEli Cohen qp->port = init_attr->port_num; 949e126ba97SEli Cohen 950e126ba97SEli Cohen in->ctx.flags = cpu_to_be32(to_mlx5_st(init_attr->qp_type) << 16 | 951e126ba97SEli Cohen MLX5_QP_PM_MIGRATED << 11); 952e126ba97SEli Cohen 953e126ba97SEli Cohen if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR) 954e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(to_mpd(pd ? pd : devr->p0)->pdn); 955e126ba97SEli Cohen else 956e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(MLX5_QP_LAT_SENSITIVE); 957e126ba97SEli Cohen 958e126ba97SEli Cohen if (qp->wq_sig) 959e126ba97SEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_ENABLE_SIG); 960e126ba97SEli Cohen 961f360d88aSEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 962f360d88aSEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_BLOCK_MCAST); 963f360d88aSEli Cohen 964e126ba97SEli Cohen if (qp->scat_cqe && is_connected(init_attr->qp_type)) { 965e126ba97SEli Cohen int rcqe_sz; 966e126ba97SEli Cohen int scqe_sz; 967e126ba97SEli Cohen 968e126ba97SEli Cohen rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq); 969e126ba97SEli Cohen scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq); 970e126ba97SEli Cohen 971e126ba97SEli Cohen if (rcqe_sz == 128) 972e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA64_CQE; 973e126ba97SEli Cohen else 974e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA32_CQE; 975e126ba97SEli Cohen 976e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) { 977e126ba97SEli Cohen if (scqe_sz == 128) 978e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA64_CQE; 979e126ba97SEli Cohen else 980e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA32_CQE; 981e126ba97SEli Cohen } 982e126ba97SEli Cohen } 983e126ba97SEli Cohen 984e126ba97SEli Cohen if (qp->rq.wqe_cnt) { 985e126ba97SEli Cohen in->ctx.rq_size_stride = (qp->rq.wqe_shift - 4); 986e126ba97SEli Cohen in->ctx.rq_size_stride |= ilog2(qp->rq.wqe_cnt) << 3; 987e126ba97SEli Cohen } 988e126ba97SEli Cohen 989e126ba97SEli Cohen in->ctx.rq_type_srqn = get_rx_type(qp, init_attr); 990e126ba97SEli Cohen 991e126ba97SEli Cohen if (qp->sq.wqe_cnt) 992e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(ilog2(qp->sq.wqe_cnt) << 11); 993e126ba97SEli Cohen else 994e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(0x8000); 995e126ba97SEli Cohen 996e126ba97SEli Cohen /* Set default resources */ 997e126ba97SEli Cohen switch (init_attr->qp_type) { 998e126ba97SEli Cohen case IB_QPT_XRC_TGT: 999e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1000e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1001e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1002e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(init_attr->xrcd)->xrcdn); 1003e126ba97SEli Cohen break; 1004e126ba97SEli Cohen case IB_QPT_XRC_INI: 1005e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1006e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 1007e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1008e126ba97SEli Cohen break; 1009e126ba97SEli Cohen default: 1010e126ba97SEli Cohen if (init_attr->srq) { 1011e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x0)->xrcdn); 1012e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(init_attr->srq)->msrq.srqn); 1013e126ba97SEli Cohen } else { 1014e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 1015e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1016e126ba97SEli Cohen } 1017e126ba97SEli Cohen } 1018e126ba97SEli Cohen 1019e126ba97SEli Cohen if (init_attr->send_cq) 1020e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(init_attr->send_cq)->mcq.cqn); 1021e126ba97SEli Cohen 1022e126ba97SEli Cohen if (init_attr->recv_cq) 1023e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(init_attr->recv_cq)->mcq.cqn); 1024e126ba97SEli Cohen 1025e126ba97SEli Cohen in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); 1026e126ba97SEli Cohen 10279603b61dSJack Morgenstein err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen); 1028e126ba97SEli Cohen if (err) { 1029e126ba97SEli Cohen mlx5_ib_dbg(dev, "create qp failed\n"); 1030e126ba97SEli Cohen goto err_create; 1031e126ba97SEli Cohen } 1032e126ba97SEli Cohen 1033479163f4SAl Viro kvfree(in); 1034e126ba97SEli Cohen /* Hardware wants QPN written in big-endian order (after 1035e126ba97SEli Cohen * shifting) for send doorbell. Precompute this value to save 1036e126ba97SEli Cohen * a little bit when posting sends. 1037e126ba97SEli Cohen */ 1038e126ba97SEli Cohen qp->doorbell_qpn = swab32(qp->mqp.qpn << 8); 1039e126ba97SEli Cohen 1040e126ba97SEli Cohen qp->mqp.event = mlx5_ib_qp_event; 1041e126ba97SEli Cohen 1042e126ba97SEli Cohen return 0; 1043e126ba97SEli Cohen 1044e126ba97SEli Cohen err_create: 1045e126ba97SEli Cohen if (qp->create_type == MLX5_QP_USER) 1046e126ba97SEli Cohen destroy_qp_user(pd, qp); 1047e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_KERNEL) 1048e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1049e126ba97SEli Cohen 1050479163f4SAl Viro kvfree(in); 1051e126ba97SEli Cohen return err; 1052e126ba97SEli Cohen } 1053e126ba97SEli Cohen 1054e126ba97SEli Cohen static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1055e126ba97SEli Cohen __acquires(&send_cq->lock) __acquires(&recv_cq->lock) 1056e126ba97SEli Cohen { 1057e126ba97SEli Cohen if (send_cq) { 1058e126ba97SEli Cohen if (recv_cq) { 1059e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1060e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1061e126ba97SEli Cohen spin_lock_nested(&recv_cq->lock, 1062e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1063e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1064e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1065e126ba97SEli Cohen __acquire(&recv_cq->lock); 1066e126ba97SEli Cohen } else { 1067e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1068e126ba97SEli Cohen spin_lock_nested(&send_cq->lock, 1069e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1070e126ba97SEli Cohen } 1071e126ba97SEli Cohen } else { 1072e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 10736a4f139aSEli Cohen __acquire(&recv_cq->lock); 1074e126ba97SEli Cohen } 1075e126ba97SEli Cohen } else if (recv_cq) { 1076e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 10776a4f139aSEli Cohen __acquire(&send_cq->lock); 10786a4f139aSEli Cohen } else { 10796a4f139aSEli Cohen __acquire(&send_cq->lock); 10806a4f139aSEli Cohen __acquire(&recv_cq->lock); 1081e126ba97SEli Cohen } 1082e126ba97SEli Cohen } 1083e126ba97SEli Cohen 1084e126ba97SEli Cohen static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1085e126ba97SEli Cohen __releases(&send_cq->lock) __releases(&recv_cq->lock) 1086e126ba97SEli Cohen { 1087e126ba97SEli Cohen if (send_cq) { 1088e126ba97SEli Cohen if (recv_cq) { 1089e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1090e126ba97SEli Cohen spin_unlock(&recv_cq->lock); 1091e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1092e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1093e126ba97SEli Cohen __release(&recv_cq->lock); 1094e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1095e126ba97SEli Cohen } else { 1096e126ba97SEli Cohen spin_unlock(&send_cq->lock); 1097e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1098e126ba97SEli Cohen } 1099e126ba97SEli Cohen } else { 11006a4f139aSEli Cohen __release(&recv_cq->lock); 1101e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1102e126ba97SEli Cohen } 1103e126ba97SEli Cohen } else if (recv_cq) { 11046a4f139aSEli Cohen __release(&send_cq->lock); 1105e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 11066a4f139aSEli Cohen } else { 11076a4f139aSEli Cohen __release(&recv_cq->lock); 11086a4f139aSEli Cohen __release(&send_cq->lock); 1109e126ba97SEli Cohen } 1110e126ba97SEli Cohen } 1111e126ba97SEli Cohen 1112e126ba97SEli Cohen static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp) 1113e126ba97SEli Cohen { 1114e126ba97SEli Cohen return to_mpd(qp->ibqp.pd); 1115e126ba97SEli Cohen } 1116e126ba97SEli Cohen 1117e126ba97SEli Cohen static void get_cqs(struct mlx5_ib_qp *qp, 1118e126ba97SEli Cohen struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq) 1119e126ba97SEli Cohen { 1120e126ba97SEli Cohen switch (qp->ibqp.qp_type) { 1121e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1122e126ba97SEli Cohen *send_cq = NULL; 1123e126ba97SEli Cohen *recv_cq = NULL; 1124e126ba97SEli Cohen break; 1125e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1126e126ba97SEli Cohen case IB_QPT_XRC_INI: 1127e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1128e126ba97SEli Cohen *recv_cq = NULL; 1129e126ba97SEli Cohen break; 1130e126ba97SEli Cohen 1131e126ba97SEli Cohen case IB_QPT_SMI: 1132e126ba97SEli Cohen case IB_QPT_GSI: 1133e126ba97SEli Cohen case IB_QPT_RC: 1134e126ba97SEli Cohen case IB_QPT_UC: 1135e126ba97SEli Cohen case IB_QPT_UD: 1136e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1137e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1138e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1139e126ba97SEli Cohen *recv_cq = to_mcq(qp->ibqp.recv_cq); 1140e126ba97SEli Cohen break; 1141e126ba97SEli Cohen 1142e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1143e126ba97SEli Cohen case IB_QPT_MAX: 1144e126ba97SEli Cohen default: 1145e126ba97SEli Cohen *send_cq = NULL; 1146e126ba97SEli Cohen *recv_cq = NULL; 1147e126ba97SEli Cohen break; 1148e126ba97SEli Cohen } 1149e126ba97SEli Cohen } 1150e126ba97SEli Cohen 1151e126ba97SEli Cohen static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 1152e126ba97SEli Cohen { 1153e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1154e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1155e126ba97SEli Cohen int err; 1156e126ba97SEli Cohen 1157e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1158e126ba97SEli Cohen if (!in) 1159e126ba97SEli Cohen return; 11607bef7ad2SEli Cohen 11616aec21f6SHaggai Eran if (qp->state != IB_QPS_RESET) { 11626aec21f6SHaggai Eran mlx5_ib_qp_disable_pagefaults(qp); 11639603b61dSJack Morgenstein if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state), 1164c3c6c9c8SHaggai Abramonvsky MLX5_QP_STATE_RST, in, 0, &qp->mqp)) 1165e126ba97SEli Cohen mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n", 1166e126ba97SEli Cohen qp->mqp.qpn); 11676aec21f6SHaggai Eran } 1168e126ba97SEli Cohen 1169e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1170e126ba97SEli Cohen 1171e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) { 1172e126ba97SEli Cohen mlx5_ib_lock_cqs(send_cq, recv_cq); 1173e126ba97SEli Cohen __mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1174e126ba97SEli Cohen qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 1175e126ba97SEli Cohen if (send_cq != recv_cq) 1176e126ba97SEli Cohen __mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1177e126ba97SEli Cohen mlx5_ib_unlock_cqs(send_cq, recv_cq); 1178e126ba97SEli Cohen } 1179e126ba97SEli Cohen 11809603b61dSJack Morgenstein err = mlx5_core_destroy_qp(dev->mdev, &qp->mqp); 1181e126ba97SEli Cohen if (err) 1182e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", qp->mqp.qpn); 1183e126ba97SEli Cohen kfree(in); 1184e126ba97SEli Cohen 1185e126ba97SEli Cohen 1186e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) 1187e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1188e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_USER) 1189e126ba97SEli Cohen destroy_qp_user(&get_pd(qp)->ibpd, qp); 1190e126ba97SEli Cohen } 1191e126ba97SEli Cohen 1192e126ba97SEli Cohen static const char *ib_qp_type_str(enum ib_qp_type type) 1193e126ba97SEli Cohen { 1194e126ba97SEli Cohen switch (type) { 1195e126ba97SEli Cohen case IB_QPT_SMI: 1196e126ba97SEli Cohen return "IB_QPT_SMI"; 1197e126ba97SEli Cohen case IB_QPT_GSI: 1198e126ba97SEli Cohen return "IB_QPT_GSI"; 1199e126ba97SEli Cohen case IB_QPT_RC: 1200e126ba97SEli Cohen return "IB_QPT_RC"; 1201e126ba97SEli Cohen case IB_QPT_UC: 1202e126ba97SEli Cohen return "IB_QPT_UC"; 1203e126ba97SEli Cohen case IB_QPT_UD: 1204e126ba97SEli Cohen return "IB_QPT_UD"; 1205e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1206e126ba97SEli Cohen return "IB_QPT_RAW_IPV6"; 1207e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1208e126ba97SEli Cohen return "IB_QPT_RAW_ETHERTYPE"; 1209e126ba97SEli Cohen case IB_QPT_XRC_INI: 1210e126ba97SEli Cohen return "IB_QPT_XRC_INI"; 1211e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1212e126ba97SEli Cohen return "IB_QPT_XRC_TGT"; 1213e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1214e126ba97SEli Cohen return "IB_QPT_RAW_PACKET"; 1215e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1216e126ba97SEli Cohen return "MLX5_IB_QPT_REG_UMR"; 1217e126ba97SEli Cohen case IB_QPT_MAX: 1218e126ba97SEli Cohen default: 1219e126ba97SEli Cohen return "Invalid QP type"; 1220e126ba97SEli Cohen } 1221e126ba97SEli Cohen } 1222e126ba97SEli Cohen 1223e126ba97SEli Cohen struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1224e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1225e126ba97SEli Cohen struct ib_udata *udata) 1226e126ba97SEli Cohen { 1227e126ba97SEli Cohen struct mlx5_ib_dev *dev; 1228e126ba97SEli Cohen struct mlx5_ib_qp *qp; 1229e126ba97SEli Cohen u16 xrcdn = 0; 1230e126ba97SEli Cohen int err; 1231e126ba97SEli Cohen 1232e126ba97SEli Cohen if (pd) { 1233e126ba97SEli Cohen dev = to_mdev(pd->device); 1234e126ba97SEli Cohen } else { 1235e126ba97SEli Cohen /* being cautious here */ 1236e126ba97SEli Cohen if (init_attr->qp_type != IB_QPT_XRC_TGT && 1237e126ba97SEli Cohen init_attr->qp_type != MLX5_IB_QPT_REG_UMR) { 1238e126ba97SEli Cohen pr_warn("%s: no PD for transport %s\n", __func__, 1239e126ba97SEli Cohen ib_qp_type_str(init_attr->qp_type)); 1240e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1241e126ba97SEli Cohen } 1242e126ba97SEli Cohen dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device); 1243e126ba97SEli Cohen } 1244e126ba97SEli Cohen 1245e126ba97SEli Cohen switch (init_attr->qp_type) { 1246e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1247e126ba97SEli Cohen case IB_QPT_XRC_INI: 1248938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(dev->mdev, xrc)) { 1249e126ba97SEli Cohen mlx5_ib_dbg(dev, "XRC not supported\n"); 1250e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 1251e126ba97SEli Cohen } 1252e126ba97SEli Cohen init_attr->recv_cq = NULL; 1253e126ba97SEli Cohen if (init_attr->qp_type == IB_QPT_XRC_TGT) { 1254e126ba97SEli Cohen xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn; 1255e126ba97SEli Cohen init_attr->send_cq = NULL; 1256e126ba97SEli Cohen } 1257e126ba97SEli Cohen 1258e126ba97SEli Cohen /* fall through */ 1259e126ba97SEli Cohen case IB_QPT_RC: 1260e126ba97SEli Cohen case IB_QPT_UC: 1261e126ba97SEli Cohen case IB_QPT_UD: 1262e126ba97SEli Cohen case IB_QPT_SMI: 1263e126ba97SEli Cohen case IB_QPT_GSI: 1264e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1265e126ba97SEli Cohen qp = kzalloc(sizeof(*qp), GFP_KERNEL); 1266e126ba97SEli Cohen if (!qp) 1267e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 1268e126ba97SEli Cohen 1269e126ba97SEli Cohen err = create_qp_common(dev, pd, init_attr, udata, qp); 1270e126ba97SEli Cohen if (err) { 1271e126ba97SEli Cohen mlx5_ib_dbg(dev, "create_qp_common failed\n"); 1272e126ba97SEli Cohen kfree(qp); 1273e126ba97SEli Cohen return ERR_PTR(err); 1274e126ba97SEli Cohen } 1275e126ba97SEli Cohen 1276e126ba97SEli Cohen if (is_qp0(init_attr->qp_type)) 1277e126ba97SEli Cohen qp->ibqp.qp_num = 0; 1278e126ba97SEli Cohen else if (is_qp1(init_attr->qp_type)) 1279e126ba97SEli Cohen qp->ibqp.qp_num = 1; 1280e126ba97SEli Cohen else 1281e126ba97SEli Cohen qp->ibqp.qp_num = qp->mqp.qpn; 1282e126ba97SEli Cohen 1283e126ba97SEli Cohen mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", 1284e126ba97SEli Cohen qp->ibqp.qp_num, qp->mqp.qpn, to_mcq(init_attr->recv_cq)->mcq.cqn, 1285e126ba97SEli Cohen to_mcq(init_attr->send_cq)->mcq.cqn); 1286e126ba97SEli Cohen 1287e126ba97SEli Cohen qp->xrcdn = xrcdn; 1288e126ba97SEli Cohen 1289e126ba97SEli Cohen break; 1290e126ba97SEli Cohen 1291e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1292e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1293e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1294e126ba97SEli Cohen case IB_QPT_MAX: 1295e126ba97SEli Cohen default: 1296e126ba97SEli Cohen mlx5_ib_dbg(dev, "unsupported qp type %d\n", 1297e126ba97SEli Cohen init_attr->qp_type); 1298e126ba97SEli Cohen /* Don't support raw QPs */ 1299e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1300e126ba97SEli Cohen } 1301e126ba97SEli Cohen 1302e126ba97SEli Cohen return &qp->ibqp; 1303e126ba97SEli Cohen } 1304e126ba97SEli Cohen 1305e126ba97SEli Cohen int mlx5_ib_destroy_qp(struct ib_qp *qp) 1306e126ba97SEli Cohen { 1307e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(qp->device); 1308e126ba97SEli Cohen struct mlx5_ib_qp *mqp = to_mqp(qp); 1309e126ba97SEli Cohen 1310e126ba97SEli Cohen destroy_qp_common(dev, mqp); 1311e126ba97SEli Cohen 1312e126ba97SEli Cohen kfree(mqp); 1313e126ba97SEli Cohen 1314e126ba97SEli Cohen return 0; 1315e126ba97SEli Cohen } 1316e126ba97SEli Cohen 1317e126ba97SEli Cohen static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr, 1318e126ba97SEli Cohen int attr_mask) 1319e126ba97SEli Cohen { 1320e126ba97SEli Cohen u32 hw_access_flags = 0; 1321e126ba97SEli Cohen u8 dest_rd_atomic; 1322e126ba97SEli Cohen u32 access_flags; 1323e126ba97SEli Cohen 1324e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1325e126ba97SEli Cohen dest_rd_atomic = attr->max_dest_rd_atomic; 1326e126ba97SEli Cohen else 1327e126ba97SEli Cohen dest_rd_atomic = qp->resp_depth; 1328e126ba97SEli Cohen 1329e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1330e126ba97SEli Cohen access_flags = attr->qp_access_flags; 1331e126ba97SEli Cohen else 1332e126ba97SEli Cohen access_flags = qp->atomic_rd_en; 1333e126ba97SEli Cohen 1334e126ba97SEli Cohen if (!dest_rd_atomic) 1335e126ba97SEli Cohen access_flags &= IB_ACCESS_REMOTE_WRITE; 1336e126ba97SEli Cohen 1337e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_READ) 1338e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RRE; 1339e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_ATOMIC) 1340e126ba97SEli Cohen hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX); 1341e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_WRITE) 1342e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RWE; 1343e126ba97SEli Cohen 1344e126ba97SEli Cohen return cpu_to_be32(hw_access_flags); 1345e126ba97SEli Cohen } 1346e126ba97SEli Cohen 1347e126ba97SEli Cohen enum { 1348e126ba97SEli Cohen MLX5_PATH_FLAG_FL = 1 << 0, 1349e126ba97SEli Cohen MLX5_PATH_FLAG_FREE_AR = 1 << 1, 1350e126ba97SEli Cohen MLX5_PATH_FLAG_COUNTER = 1 << 2, 1351e126ba97SEli Cohen }; 1352e126ba97SEli Cohen 1353e126ba97SEli Cohen static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) 1354e126ba97SEli Cohen { 1355e126ba97SEli Cohen if (rate == IB_RATE_PORT_CURRENT) { 1356e126ba97SEli Cohen return 0; 1357e126ba97SEli Cohen } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) { 1358e126ba97SEli Cohen return -EINVAL; 1359e126ba97SEli Cohen } else { 1360e126ba97SEli Cohen while (rate != IB_RATE_2_5_GBPS && 1361e126ba97SEli Cohen !(1 << (rate + MLX5_STAT_RATE_OFFSET) & 1362938fe83cSSaeed Mahameed MLX5_CAP_GEN(dev->mdev, stat_rate_support))) 1363e126ba97SEli Cohen --rate; 1364e126ba97SEli Cohen } 1365e126ba97SEli Cohen 1366e126ba97SEli Cohen return rate + MLX5_STAT_RATE_OFFSET; 1367e126ba97SEli Cohen } 1368e126ba97SEli Cohen 1369e126ba97SEli Cohen static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah, 1370e126ba97SEli Cohen struct mlx5_qp_path *path, u8 port, int attr_mask, 1371e126ba97SEli Cohen u32 path_flags, const struct ib_qp_attr *attr) 1372e126ba97SEli Cohen { 1373e126ba97SEli Cohen int err; 1374e126ba97SEli Cohen 1375e126ba97SEli Cohen path->fl = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0; 1376e126ba97SEli Cohen path->free_ar = (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x80 : 0; 1377e126ba97SEli Cohen 1378e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1379e126ba97SEli Cohen path->pkey_index = attr->pkey_index; 1380e126ba97SEli Cohen 1381e126ba97SEli Cohen path->grh_mlid = ah->src_path_bits & 0x7f; 1382e126ba97SEli Cohen path->rlid = cpu_to_be16(ah->dlid); 1383e126ba97SEli Cohen 1384e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 1385938fe83cSSaeed Mahameed if (ah->grh.sgid_index >= 1386938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].gid_table_len) { 1387f4f01b54SJoe Perches pr_err("sgid_index (%u) too large. max is %d\n", 1388938fe83cSSaeed Mahameed ah->grh.sgid_index, 1389938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].gid_table_len); 1390f83b4263SEli Cohen return -EINVAL; 1391f83b4263SEli Cohen } 1392e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 1393e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1394e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1395e126ba97SEli Cohen path->tclass_flowlabel = 1396e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1397e126ba97SEli Cohen (ah->grh.flow_label)); 1398e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1399e126ba97SEli Cohen } 1400e126ba97SEli Cohen 1401e126ba97SEli Cohen err = ib_rate_to_mlx5(dev, ah->static_rate); 1402e126ba97SEli Cohen if (err < 0) 1403e126ba97SEli Cohen return err; 1404e126ba97SEli Cohen path->static_rate = err; 1405e126ba97SEli Cohen path->port = port; 1406e126ba97SEli Cohen 1407e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1408e126ba97SEli Cohen path->ackto_lt = attr->timeout << 3; 1409e126ba97SEli Cohen 1410e126ba97SEli Cohen path->sl = ah->sl & 0xf; 1411e126ba97SEli Cohen 1412e126ba97SEli Cohen return 0; 1413e126ba97SEli Cohen } 1414e126ba97SEli Cohen 1415e126ba97SEli Cohen static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = { 1416e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1417e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1418e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1419e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1420e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1421e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1422e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1423e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1424e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1425e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1426e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1427e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY | 1428e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1429e126ba97SEli Cohen }, 1430e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1431e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1432e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1433e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1434e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1435e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1436e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1437e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1438e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1439e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1440e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1441e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | 1442e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1443a4774e90SEli Cohen [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1444a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE | 1445a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1446a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1447a4774e90SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1448e126ba97SEli Cohen }, 1449e126ba97SEli Cohen }, 1450e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1451e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1452e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1453e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1454e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1455e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1456e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1457e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT, 1458e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1459e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1460e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1461e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1462e126ba97SEli Cohen }, 1463e126ba97SEli Cohen }, 1464e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1465e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1466e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1467e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1468e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1469e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT | 1470c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1471c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1472e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1473c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1474c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1475e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | 1476e126ba97SEli Cohen MLX5_QP_OPTPAR_SRQN | 1477e126ba97SEli Cohen MLX5_QP_OPTPAR_CQN_RCV, 1478e126ba97SEli Cohen }, 1479e126ba97SEli Cohen }, 1480e126ba97SEli Cohen [MLX5_QP_STATE_SQER] = { 1481e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1482e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1483e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, 148475959f56SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE, 1485a4774e90SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT | 1486a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1487a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1488a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE, 1489e126ba97SEli Cohen }, 1490e126ba97SEli Cohen }, 1491e126ba97SEli Cohen }; 1492e126ba97SEli Cohen 1493e126ba97SEli Cohen static int ib_nr_to_mlx5_nr(int ib_mask) 1494e126ba97SEli Cohen { 1495e126ba97SEli Cohen switch (ib_mask) { 1496e126ba97SEli Cohen case IB_QP_STATE: 1497e126ba97SEli Cohen return 0; 1498e126ba97SEli Cohen case IB_QP_CUR_STATE: 1499e126ba97SEli Cohen return 0; 1500e126ba97SEli Cohen case IB_QP_EN_SQD_ASYNC_NOTIFY: 1501e126ba97SEli Cohen return 0; 1502e126ba97SEli Cohen case IB_QP_ACCESS_FLAGS: 1503e126ba97SEli Cohen return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE | 1504e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE; 1505e126ba97SEli Cohen case IB_QP_PKEY_INDEX: 1506e126ba97SEli Cohen return MLX5_QP_OPTPAR_PKEY_INDEX; 1507e126ba97SEli Cohen case IB_QP_PORT: 1508e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRI_PORT; 1509e126ba97SEli Cohen case IB_QP_QKEY: 1510e126ba97SEli Cohen return MLX5_QP_OPTPAR_Q_KEY; 1511e126ba97SEli Cohen case IB_QP_AV: 1512e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH | 1513e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT; 1514e126ba97SEli Cohen case IB_QP_PATH_MTU: 1515e126ba97SEli Cohen return 0; 1516e126ba97SEli Cohen case IB_QP_TIMEOUT: 1517e126ba97SEli Cohen return MLX5_QP_OPTPAR_ACK_TIMEOUT; 1518e126ba97SEli Cohen case IB_QP_RETRY_CNT: 1519e126ba97SEli Cohen return MLX5_QP_OPTPAR_RETRY_COUNT; 1520e126ba97SEli Cohen case IB_QP_RNR_RETRY: 1521e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_RETRY; 1522e126ba97SEli Cohen case IB_QP_RQ_PSN: 1523e126ba97SEli Cohen return 0; 1524e126ba97SEli Cohen case IB_QP_MAX_QP_RD_ATOMIC: 1525e126ba97SEli Cohen return MLX5_QP_OPTPAR_SRA_MAX; 1526e126ba97SEli Cohen case IB_QP_ALT_PATH: 1527e126ba97SEli Cohen return MLX5_QP_OPTPAR_ALT_ADDR_PATH; 1528e126ba97SEli Cohen case IB_QP_MIN_RNR_TIMER: 1529e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_TIMEOUT; 1530e126ba97SEli Cohen case IB_QP_SQ_PSN: 1531e126ba97SEli Cohen return 0; 1532e126ba97SEli Cohen case IB_QP_MAX_DEST_RD_ATOMIC: 1533e126ba97SEli Cohen return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE | 1534e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE; 1535e126ba97SEli Cohen case IB_QP_PATH_MIG_STATE: 1536e126ba97SEli Cohen return MLX5_QP_OPTPAR_PM_STATE; 1537e126ba97SEli Cohen case IB_QP_CAP: 1538e126ba97SEli Cohen return 0; 1539e126ba97SEli Cohen case IB_QP_DEST_QPN: 1540e126ba97SEli Cohen return 0; 1541e126ba97SEli Cohen } 1542e126ba97SEli Cohen return 0; 1543e126ba97SEli Cohen } 1544e126ba97SEli Cohen 1545e126ba97SEli Cohen static int ib_mask_to_mlx5_opt(int ib_mask) 1546e126ba97SEli Cohen { 1547e126ba97SEli Cohen int result = 0; 1548e126ba97SEli Cohen int i; 1549e126ba97SEli Cohen 1550e126ba97SEli Cohen for (i = 0; i < 8 * sizeof(int); i++) { 1551e126ba97SEli Cohen if ((1 << i) & ib_mask) 1552e126ba97SEli Cohen result |= ib_nr_to_mlx5_nr(1 << i); 1553e126ba97SEli Cohen } 1554e126ba97SEli Cohen 1555e126ba97SEli Cohen return result; 1556e126ba97SEli Cohen } 1557e126ba97SEli Cohen 1558e126ba97SEli Cohen static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, 1559e126ba97SEli Cohen const struct ib_qp_attr *attr, int attr_mask, 1560e126ba97SEli Cohen enum ib_qp_state cur_state, enum ib_qp_state new_state) 1561e126ba97SEli Cohen { 1562e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1563e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1564e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1565e126ba97SEli Cohen struct mlx5_qp_context *context; 1566e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1567e126ba97SEli Cohen struct mlx5_ib_pd *pd; 1568e126ba97SEli Cohen enum mlx5_qp_state mlx5_cur, mlx5_new; 1569e126ba97SEli Cohen enum mlx5_qp_optpar optpar; 1570e126ba97SEli Cohen int sqd_event; 1571e126ba97SEli Cohen int mlx5_st; 1572e126ba97SEli Cohen int err; 1573e126ba97SEli Cohen 1574e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1575e126ba97SEli Cohen if (!in) 1576e126ba97SEli Cohen return -ENOMEM; 1577e126ba97SEli Cohen 1578e126ba97SEli Cohen context = &in->ctx; 1579e126ba97SEli Cohen err = to_mlx5_st(ibqp->qp_type); 1580e126ba97SEli Cohen if (err < 0) 1581e126ba97SEli Cohen goto out; 1582e126ba97SEli Cohen 1583e126ba97SEli Cohen context->flags = cpu_to_be32(err << 16); 1584e126ba97SEli Cohen 1585e126ba97SEli Cohen if (!(attr_mask & IB_QP_PATH_MIG_STATE)) { 1586e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1587e126ba97SEli Cohen } else { 1588e126ba97SEli Cohen switch (attr->path_mig_state) { 1589e126ba97SEli Cohen case IB_MIG_MIGRATED: 1590e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1591e126ba97SEli Cohen break; 1592e126ba97SEli Cohen case IB_MIG_REARM: 1593e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11); 1594e126ba97SEli Cohen break; 1595e126ba97SEli Cohen case IB_MIG_ARMED: 1596e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11); 1597e126ba97SEli Cohen break; 1598e126ba97SEli Cohen } 1599e126ba97SEli Cohen } 1600e126ba97SEli Cohen 1601e126ba97SEli Cohen if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { 1602e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_256 << 5) | 8; 1603e126ba97SEli Cohen } else if (ibqp->qp_type == IB_QPT_UD || 1604e126ba97SEli Cohen ibqp->qp_type == MLX5_IB_QPT_REG_UMR) { 1605e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_4096 << 5) | 12; 1606e126ba97SEli Cohen } else if (attr_mask & IB_QP_PATH_MTU) { 1607e126ba97SEli Cohen if (attr->path_mtu < IB_MTU_256 || 1608e126ba97SEli Cohen attr->path_mtu > IB_MTU_4096) { 1609e126ba97SEli Cohen mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu); 1610e126ba97SEli Cohen err = -EINVAL; 1611e126ba97SEli Cohen goto out; 1612e126ba97SEli Cohen } 1613938fe83cSSaeed Mahameed context->mtu_msgmax = (attr->path_mtu << 5) | 1614938fe83cSSaeed Mahameed (u8)MLX5_CAP_GEN(dev->mdev, log_max_msg); 1615e126ba97SEli Cohen } 1616e126ba97SEli Cohen 1617e126ba97SEli Cohen if (attr_mask & IB_QP_DEST_QPN) 1618e126ba97SEli Cohen context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num); 1619e126ba97SEli Cohen 1620e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1621e126ba97SEli Cohen context->pri_path.pkey_index = attr->pkey_index; 1622e126ba97SEli Cohen 1623e126ba97SEli Cohen /* todo implement counter_index functionality */ 1624e126ba97SEli Cohen 1625e126ba97SEli Cohen if (is_sqp(ibqp->qp_type)) 1626e126ba97SEli Cohen context->pri_path.port = qp->port; 1627e126ba97SEli Cohen 1628e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1629e126ba97SEli Cohen context->pri_path.port = attr->port_num; 1630e126ba97SEli Cohen 1631e126ba97SEli Cohen if (attr_mask & IB_QP_AV) { 1632e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path, 1633e126ba97SEli Cohen attr_mask & IB_QP_PORT ? attr->port_num : qp->port, 1634e126ba97SEli Cohen attr_mask, 0, attr); 1635e126ba97SEli Cohen if (err) 1636e126ba97SEli Cohen goto out; 1637e126ba97SEli Cohen } 1638e126ba97SEli Cohen 1639e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1640e126ba97SEli Cohen context->pri_path.ackto_lt |= attr->timeout << 3; 1641e126ba97SEli Cohen 1642e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) { 1643e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path, 1644e126ba97SEli Cohen attr->alt_port_num, attr_mask, 0, attr); 1645e126ba97SEli Cohen if (err) 1646e126ba97SEli Cohen goto out; 1647e126ba97SEli Cohen } 1648e126ba97SEli Cohen 1649e126ba97SEli Cohen pd = get_pd(qp); 1650e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1651e126ba97SEli Cohen 1652e126ba97SEli Cohen context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn); 1653e126ba97SEli Cohen context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0; 1654e126ba97SEli Cohen context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0; 1655e126ba97SEli Cohen context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28); 1656e126ba97SEli Cohen 1657e126ba97SEli Cohen if (attr_mask & IB_QP_RNR_RETRY) 1658e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->rnr_retry << 13); 1659e126ba97SEli Cohen 1660e126ba97SEli Cohen if (attr_mask & IB_QP_RETRY_CNT) 1661e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->retry_cnt << 16); 1662e126ba97SEli Cohen 1663e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 1664e126ba97SEli Cohen if (attr->max_rd_atomic) 1665e126ba97SEli Cohen context->params1 |= 1666e126ba97SEli Cohen cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); 1667e126ba97SEli Cohen } 1668e126ba97SEli Cohen 1669e126ba97SEli Cohen if (attr_mask & IB_QP_SQ_PSN) 1670e126ba97SEli Cohen context->next_send_psn = cpu_to_be32(attr->sq_psn); 1671e126ba97SEli Cohen 1672e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 1673e126ba97SEli Cohen if (attr->max_dest_rd_atomic) 1674e126ba97SEli Cohen context->params2 |= 1675e126ba97SEli Cohen cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21); 1676e126ba97SEli Cohen } 1677e126ba97SEli Cohen 1678e126ba97SEli Cohen if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) 1679e126ba97SEli Cohen context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask); 1680e126ba97SEli Cohen 1681e126ba97SEli Cohen if (attr_mask & IB_QP_MIN_RNR_TIMER) 1682e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24); 1683e126ba97SEli Cohen 1684e126ba97SEli Cohen if (attr_mask & IB_QP_RQ_PSN) 1685e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn); 1686e126ba97SEli Cohen 1687e126ba97SEli Cohen if (attr_mask & IB_QP_QKEY) 1688e126ba97SEli Cohen context->qkey = cpu_to_be32(attr->qkey); 1689e126ba97SEli Cohen 1690e126ba97SEli Cohen if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1691e126ba97SEli Cohen context->db_rec_addr = cpu_to_be64(qp->db.dma); 1692e126ba97SEli Cohen 1693e126ba97SEli Cohen if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && 1694e126ba97SEli Cohen attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify) 1695e126ba97SEli Cohen sqd_event = 1; 1696e126ba97SEli Cohen else 1697e126ba97SEli Cohen sqd_event = 0; 1698e126ba97SEli Cohen 1699e126ba97SEli Cohen if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1700e126ba97SEli Cohen context->sq_crq_size |= cpu_to_be16(1 << 4); 1701e126ba97SEli Cohen 1702e126ba97SEli Cohen 1703e126ba97SEli Cohen mlx5_cur = to_mlx5_state(cur_state); 1704e126ba97SEli Cohen mlx5_new = to_mlx5_state(new_state); 1705e126ba97SEli Cohen mlx5_st = to_mlx5_st(ibqp->qp_type); 170607c9113fSEli Cohen if (mlx5_st < 0) 1707e126ba97SEli Cohen goto out; 1708e126ba97SEli Cohen 17096aec21f6SHaggai Eran /* If moving to a reset or error state, we must disable page faults on 17106aec21f6SHaggai Eran * this QP and flush all current page faults. Otherwise a stale page 17116aec21f6SHaggai Eran * fault may attempt to work on this QP after it is reset and moved 17126aec21f6SHaggai Eran * again to RTS, and may cause the driver and the device to get out of 17136aec21f6SHaggai Eran * sync. */ 17146aec21f6SHaggai Eran if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR && 17156aec21f6SHaggai Eran (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR)) 17166aec21f6SHaggai Eran mlx5_ib_qp_disable_pagefaults(qp); 17176aec21f6SHaggai Eran 1718e126ba97SEli Cohen optpar = ib_mask_to_mlx5_opt(attr_mask); 1719e126ba97SEli Cohen optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st]; 1720e126ba97SEli Cohen in->optparam = cpu_to_be32(optpar); 17219603b61dSJack Morgenstein err = mlx5_core_qp_modify(dev->mdev, to_mlx5_state(cur_state), 1722e126ba97SEli Cohen to_mlx5_state(new_state), in, sqd_event, 1723e126ba97SEli Cohen &qp->mqp); 1724e126ba97SEli Cohen if (err) 1725e126ba97SEli Cohen goto out; 1726e126ba97SEli Cohen 17276aec21f6SHaggai Eran if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 17286aec21f6SHaggai Eran mlx5_ib_qp_enable_pagefaults(qp); 17296aec21f6SHaggai Eran 1730e126ba97SEli Cohen qp->state = new_state; 1731e126ba97SEli Cohen 1732e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1733e126ba97SEli Cohen qp->atomic_rd_en = attr->qp_access_flags; 1734e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1735e126ba97SEli Cohen qp->resp_depth = attr->max_dest_rd_atomic; 1736e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1737e126ba97SEli Cohen qp->port = attr->port_num; 1738e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) 1739e126ba97SEli Cohen qp->alt_port = attr->alt_port_num; 1740e126ba97SEli Cohen 1741e126ba97SEli Cohen /* 1742e126ba97SEli Cohen * If we moved a kernel QP to RESET, clean up all old CQ 1743e126ba97SEli Cohen * entries and reinitialize the QP. 1744e126ba97SEli Cohen */ 1745e126ba97SEli Cohen if (new_state == IB_QPS_RESET && !ibqp->uobject) { 1746e126ba97SEli Cohen mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1747e126ba97SEli Cohen ibqp->srq ? to_msrq(ibqp->srq) : NULL); 1748e126ba97SEli Cohen if (send_cq != recv_cq) 1749e126ba97SEli Cohen mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1750e126ba97SEli Cohen 1751e126ba97SEli Cohen qp->rq.head = 0; 1752e126ba97SEli Cohen qp->rq.tail = 0; 1753e126ba97SEli Cohen qp->sq.head = 0; 1754e126ba97SEli Cohen qp->sq.tail = 0; 1755e126ba97SEli Cohen qp->sq.cur_post = 0; 1756e126ba97SEli Cohen qp->sq.last_poll = 0; 1757e126ba97SEli Cohen qp->db.db[MLX5_RCV_DBR] = 0; 1758e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = 0; 1759e126ba97SEli Cohen } 1760e126ba97SEli Cohen 1761e126ba97SEli Cohen out: 1762e126ba97SEli Cohen kfree(in); 1763e126ba97SEli Cohen return err; 1764e126ba97SEli Cohen } 1765e126ba97SEli Cohen 1766e126ba97SEli Cohen int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1767e126ba97SEli Cohen int attr_mask, struct ib_udata *udata) 1768e126ba97SEli Cohen { 1769e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1770e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1771e126ba97SEli Cohen enum ib_qp_state cur_state, new_state; 1772e126ba97SEli Cohen int err = -EINVAL; 1773e126ba97SEli Cohen int port; 1774e126ba97SEli Cohen 1775e126ba97SEli Cohen mutex_lock(&qp->mutex); 1776e126ba97SEli Cohen 1777e126ba97SEli Cohen cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state; 1778e126ba97SEli Cohen new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state; 1779e126ba97SEli Cohen 1780e126ba97SEli Cohen if (ibqp->qp_type != MLX5_IB_QPT_REG_UMR && 1781dd5f03beSMatan Barak !ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask, 1782dd5f03beSMatan Barak IB_LINK_LAYER_UNSPECIFIED)) 1783e126ba97SEli Cohen goto out; 1784e126ba97SEli Cohen 1785e126ba97SEli Cohen if ((attr_mask & IB_QP_PORT) && 1786938fe83cSSaeed Mahameed (attr->port_num == 0 || 1787938fe83cSSaeed Mahameed attr->port_num > MLX5_CAP_GEN(dev->mdev, num_ports))) 1788e126ba97SEli Cohen goto out; 1789e126ba97SEli Cohen 1790e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) { 1791e126ba97SEli Cohen port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 1792938fe83cSSaeed Mahameed if (attr->pkey_index >= 1793938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].pkey_table_len) 1794e126ba97SEli Cohen goto out; 1795e126ba97SEli Cohen } 1796e126ba97SEli Cohen 1797e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && 1798938fe83cSSaeed Mahameed attr->max_rd_atomic > 1799938fe83cSSaeed Mahameed (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_res_qp))) 1800e126ba97SEli Cohen goto out; 1801e126ba97SEli Cohen 1802e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && 1803938fe83cSSaeed Mahameed attr->max_dest_rd_atomic > 1804938fe83cSSaeed Mahameed (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_req_qp))) 1805e126ba97SEli Cohen goto out; 1806e126ba97SEli Cohen 1807e126ba97SEli Cohen if (cur_state == new_state && cur_state == IB_QPS_RESET) { 1808e126ba97SEli Cohen err = 0; 1809e126ba97SEli Cohen goto out; 1810e126ba97SEli Cohen } 1811e126ba97SEli Cohen 1812e126ba97SEli Cohen err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state); 1813e126ba97SEli Cohen 1814e126ba97SEli Cohen out: 1815e126ba97SEli Cohen mutex_unlock(&qp->mutex); 1816e126ba97SEli Cohen return err; 1817e126ba97SEli Cohen } 1818e126ba97SEli Cohen 1819e126ba97SEli Cohen static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq) 1820e126ba97SEli Cohen { 1821e126ba97SEli Cohen struct mlx5_ib_cq *cq; 1822e126ba97SEli Cohen unsigned cur; 1823e126ba97SEli Cohen 1824e126ba97SEli Cohen cur = wq->head - wq->tail; 1825e126ba97SEli Cohen if (likely(cur + nreq < wq->max_post)) 1826e126ba97SEli Cohen return 0; 1827e126ba97SEli Cohen 1828e126ba97SEli Cohen cq = to_mcq(ib_cq); 1829e126ba97SEli Cohen spin_lock(&cq->lock); 1830e126ba97SEli Cohen cur = wq->head - wq->tail; 1831e126ba97SEli Cohen spin_unlock(&cq->lock); 1832e126ba97SEli Cohen 1833e126ba97SEli Cohen return cur + nreq >= wq->max_post; 1834e126ba97SEli Cohen } 1835e126ba97SEli Cohen 1836e126ba97SEli Cohen static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, 1837e126ba97SEli Cohen u64 remote_addr, u32 rkey) 1838e126ba97SEli Cohen { 1839e126ba97SEli Cohen rseg->raddr = cpu_to_be64(remote_addr); 1840e126ba97SEli Cohen rseg->rkey = cpu_to_be32(rkey); 1841e126ba97SEli Cohen rseg->reserved = 0; 1842e126ba97SEli Cohen } 1843e126ba97SEli Cohen 1844e126ba97SEli Cohen static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, 1845e126ba97SEli Cohen struct ib_send_wr *wr) 1846e126ba97SEli Cohen { 1847e126ba97SEli Cohen memcpy(&dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof(struct mlx5_av)); 1848e126ba97SEli Cohen dseg->av.dqp_dct = cpu_to_be32(wr->wr.ud.remote_qpn | MLX5_EXTENDED_UD_AV); 1849e126ba97SEli Cohen dseg->av.key.qkey.qkey = cpu_to_be32(wr->wr.ud.remote_qkey); 1850e126ba97SEli Cohen } 1851e126ba97SEli Cohen 1852e126ba97SEli Cohen static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg) 1853e126ba97SEli Cohen { 1854e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(sg->length); 1855e126ba97SEli Cohen dseg->lkey = cpu_to_be32(sg->lkey); 1856e126ba97SEli Cohen dseg->addr = cpu_to_be64(sg->addr); 1857e126ba97SEli Cohen } 1858e126ba97SEli Cohen 1859e126ba97SEli Cohen static __be16 get_klm_octo(int npages) 1860e126ba97SEli Cohen { 1861e126ba97SEli Cohen return cpu_to_be16(ALIGN(npages, 8) / 2); 1862e126ba97SEli Cohen } 1863e126ba97SEli Cohen 1864e126ba97SEli Cohen static __be64 frwr_mkey_mask(void) 1865e126ba97SEli Cohen { 1866e126ba97SEli Cohen u64 result; 1867e126ba97SEli Cohen 1868e126ba97SEli Cohen result = MLX5_MKEY_MASK_LEN | 1869e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1870e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1871e126ba97SEli Cohen MLX5_MKEY_MASK_EN_RINVAL | 1872e126ba97SEli Cohen MLX5_MKEY_MASK_KEY | 1873e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1874e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1875e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1876e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1877e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1878e126ba97SEli Cohen MLX5_MKEY_MASK_SMALL_FENCE | 1879e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1880e126ba97SEli Cohen 1881e126ba97SEli Cohen return cpu_to_be64(result); 1882e126ba97SEli Cohen } 1883e126ba97SEli Cohen 1884e6631814SSagi Grimberg static __be64 sig_mkey_mask(void) 1885e6631814SSagi Grimberg { 1886e6631814SSagi Grimberg u64 result; 1887e6631814SSagi Grimberg 1888e6631814SSagi Grimberg result = MLX5_MKEY_MASK_LEN | 1889e6631814SSagi Grimberg MLX5_MKEY_MASK_PAGE_SIZE | 1890e6631814SSagi Grimberg MLX5_MKEY_MASK_START_ADDR | 1891d5436ba0SSagi Grimberg MLX5_MKEY_MASK_EN_SIGERR | 1892e6631814SSagi Grimberg MLX5_MKEY_MASK_EN_RINVAL | 1893e6631814SSagi Grimberg MLX5_MKEY_MASK_KEY | 1894e6631814SSagi Grimberg MLX5_MKEY_MASK_LR | 1895e6631814SSagi Grimberg MLX5_MKEY_MASK_LW | 1896e6631814SSagi Grimberg MLX5_MKEY_MASK_RR | 1897e6631814SSagi Grimberg MLX5_MKEY_MASK_RW | 1898e6631814SSagi Grimberg MLX5_MKEY_MASK_SMALL_FENCE | 1899e6631814SSagi Grimberg MLX5_MKEY_MASK_FREE | 1900e6631814SSagi Grimberg MLX5_MKEY_MASK_BSF_EN; 1901e6631814SSagi Grimberg 1902e6631814SSagi Grimberg return cpu_to_be64(result); 1903e6631814SSagi Grimberg } 1904e6631814SSagi Grimberg 1905e126ba97SEli Cohen static void set_frwr_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1906e126ba97SEli Cohen struct ib_send_wr *wr, int li) 1907e126ba97SEli Cohen { 1908e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1909e126ba97SEli Cohen 1910e126ba97SEli Cohen if (li) { 1911e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); 1912e126ba97SEli Cohen umr->flags = 1 << 7; 1913e126ba97SEli Cohen return; 1914e126ba97SEli Cohen } 1915e126ba97SEli Cohen 1916e126ba97SEli Cohen umr->flags = (1 << 5); /* fail if not free */ 1917e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(wr->wr.fast_reg.page_list_len); 1918e126ba97SEli Cohen umr->mkey_mask = frwr_mkey_mask(); 1919e126ba97SEli Cohen } 1920e126ba97SEli Cohen 1921968e78ddSHaggai Eran static __be64 get_umr_reg_mr_mask(void) 1922e126ba97SEli Cohen { 1923968e78ddSHaggai Eran u64 result; 1924e126ba97SEli Cohen 1925968e78ddSHaggai Eran result = MLX5_MKEY_MASK_LEN | 1926e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1927e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1928e126ba97SEli Cohen MLX5_MKEY_MASK_PD | 1929e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1930e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1931746b5583SEli Cohen MLX5_MKEY_MASK_KEY | 1932e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1933e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1934e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1935e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1936968e78ddSHaggai Eran 1937968e78ddSHaggai Eran return cpu_to_be64(result); 1938968e78ddSHaggai Eran } 1939968e78ddSHaggai Eran 1940968e78ddSHaggai Eran static __be64 get_umr_unreg_mr_mask(void) 1941968e78ddSHaggai Eran { 1942968e78ddSHaggai Eran u64 result; 1943968e78ddSHaggai Eran 1944968e78ddSHaggai Eran result = MLX5_MKEY_MASK_FREE; 1945968e78ddSHaggai Eran 1946968e78ddSHaggai Eran return cpu_to_be64(result); 1947968e78ddSHaggai Eran } 1948968e78ddSHaggai Eran 1949968e78ddSHaggai Eran static __be64 get_umr_update_mtt_mask(void) 1950968e78ddSHaggai Eran { 1951968e78ddSHaggai Eran u64 result; 1952968e78ddSHaggai Eran 1953968e78ddSHaggai Eran result = MLX5_MKEY_MASK_FREE; 1954968e78ddSHaggai Eran 1955968e78ddSHaggai Eran return cpu_to_be64(result); 1956968e78ddSHaggai Eran } 1957968e78ddSHaggai Eran 1958968e78ddSHaggai Eran static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1959968e78ddSHaggai Eran struct ib_send_wr *wr) 1960968e78ddSHaggai Eran { 1961968e78ddSHaggai Eran struct mlx5_umr_wr *umrwr = (struct mlx5_umr_wr *)&wr->wr.fast_reg; 1962968e78ddSHaggai Eran 1963968e78ddSHaggai Eran memset(umr, 0, sizeof(*umr)); 1964968e78ddSHaggai Eran 1965968e78ddSHaggai Eran if (wr->send_flags & MLX5_IB_SEND_UMR_FAIL_IF_FREE) 1966968e78ddSHaggai Eran umr->flags = MLX5_UMR_CHECK_FREE; /* fail if free */ 1967968e78ddSHaggai Eran else 1968968e78ddSHaggai Eran umr->flags = MLX5_UMR_CHECK_NOT_FREE; /* fail if not free */ 1969968e78ddSHaggai Eran 1970968e78ddSHaggai Eran if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) { 1971968e78ddSHaggai Eran umr->klm_octowords = get_klm_octo(umrwr->npages); 1972968e78ddSHaggai Eran if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT) { 1973968e78ddSHaggai Eran umr->mkey_mask = get_umr_update_mtt_mask(); 1974968e78ddSHaggai Eran umr->bsf_octowords = get_klm_octo(umrwr->target.offset); 1975968e78ddSHaggai Eran umr->flags |= MLX5_UMR_TRANSLATION_OFFSET_EN; 1976e126ba97SEli Cohen } else { 1977968e78ddSHaggai Eran umr->mkey_mask = get_umr_reg_mr_mask(); 1978968e78ddSHaggai Eran } 1979968e78ddSHaggai Eran } else { 1980968e78ddSHaggai Eran umr->mkey_mask = get_umr_unreg_mr_mask(); 1981e126ba97SEli Cohen } 1982e126ba97SEli Cohen 1983e126ba97SEli Cohen if (!wr->num_sge) 1984968e78ddSHaggai Eran umr->flags |= MLX5_UMR_INLINE; 1985e126ba97SEli Cohen } 1986e126ba97SEli Cohen 1987e126ba97SEli Cohen static u8 get_umr_flags(int acc) 1988e126ba97SEli Cohen { 1989e126ba97SEli Cohen return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 1990e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 1991e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 1992e126ba97SEli Cohen (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 19932ac45934SSagi Grimberg MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN; 1994e126ba97SEli Cohen } 1995e126ba97SEli Cohen 1996e126ba97SEli Cohen static void set_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr, 1997e126ba97SEli Cohen int li, int *writ) 1998e126ba97SEli Cohen { 1999e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 2000e126ba97SEli Cohen if (li) { 2001968e78ddSHaggai Eran seg->status = MLX5_MKEY_STATUS_FREE; 2002e126ba97SEli Cohen return; 2003e126ba97SEli Cohen } 2004e126ba97SEli Cohen 20052ac45934SSagi Grimberg seg->flags = get_umr_flags(wr->wr.fast_reg.access_flags) | 20062ac45934SSagi Grimberg MLX5_ACCESS_MODE_MTT; 2007e126ba97SEli Cohen *writ = seg->flags & (MLX5_PERM_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE); 2008e126ba97SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32((wr->wr.fast_reg.rkey & 0xff) | 0xffffff00); 2009e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL); 2010e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 2011e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 2012e126ba97SEli Cohen seg->xlt_oct_size = cpu_to_be32((wr->wr.fast_reg.page_list_len + 1) / 2); 2013e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 2014e126ba97SEli Cohen } 2015e126ba97SEli Cohen 2016e126ba97SEli Cohen static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr) 2017e126ba97SEli Cohen { 2018968e78ddSHaggai Eran struct mlx5_umr_wr *umrwr = (struct mlx5_umr_wr *)&wr->wr.fast_reg; 2019968e78ddSHaggai Eran 2020e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 2021e126ba97SEli Cohen if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) { 2022968e78ddSHaggai Eran seg->status = MLX5_MKEY_STATUS_FREE; 2023e126ba97SEli Cohen return; 2024e126ba97SEli Cohen } 2025e126ba97SEli Cohen 2026968e78ddSHaggai Eran seg->flags = convert_access(umrwr->access_flags); 2027968e78ddSHaggai Eran if (!(wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT)) { 2028968e78ddSHaggai Eran seg->flags_pd = cpu_to_be32(to_mpd(umrwr->pd)->pdn); 2029968e78ddSHaggai Eran seg->start_addr = cpu_to_be64(umrwr->target.virt_addr); 2030968e78ddSHaggai Eran } 2031968e78ddSHaggai Eran seg->len = cpu_to_be64(umrwr->length); 2032968e78ddSHaggai Eran seg->log2_page_size = umrwr->page_shift; 2033746b5583SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 | 2034968e78ddSHaggai Eran mlx5_mkey_variant(umrwr->mkey)); 2035e126ba97SEli Cohen } 2036e126ba97SEli Cohen 2037e126ba97SEli Cohen static void set_frwr_pages(struct mlx5_wqe_data_seg *dseg, 2038e126ba97SEli Cohen struct ib_send_wr *wr, 2039e126ba97SEli Cohen struct mlx5_core_dev *mdev, 2040e126ba97SEli Cohen struct mlx5_ib_pd *pd, 2041e126ba97SEli Cohen int writ) 2042e126ba97SEli Cohen { 2043e126ba97SEli Cohen struct mlx5_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list); 2044e126ba97SEli Cohen u64 *page_list = wr->wr.fast_reg.page_list->page_list; 2045e126ba97SEli Cohen u64 perm = MLX5_EN_RD | (writ ? MLX5_EN_WR : 0); 2046e126ba97SEli Cohen int i; 2047e126ba97SEli Cohen 2048e126ba97SEli Cohen for (i = 0; i < wr->wr.fast_reg.page_list_len; i++) 2049e126ba97SEli Cohen mfrpl->mapped_page_list[i] = cpu_to_be64(page_list[i] | perm); 2050e126ba97SEli Cohen dseg->addr = cpu_to_be64(mfrpl->map); 2051e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(ALIGN(sizeof(u64) * wr->wr.fast_reg.page_list_len, 64)); 2052e126ba97SEli Cohen dseg->lkey = cpu_to_be32(pd->pa_lkey); 2053e126ba97SEli Cohen } 2054e126ba97SEli Cohen 2055e126ba97SEli Cohen static __be32 send_ieth(struct ib_send_wr *wr) 2056e126ba97SEli Cohen { 2057e126ba97SEli Cohen switch (wr->opcode) { 2058e126ba97SEli Cohen case IB_WR_SEND_WITH_IMM: 2059e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2060e126ba97SEli Cohen return wr->ex.imm_data; 2061e126ba97SEli Cohen 2062e126ba97SEli Cohen case IB_WR_SEND_WITH_INV: 2063e126ba97SEli Cohen return cpu_to_be32(wr->ex.invalidate_rkey); 2064e126ba97SEli Cohen 2065e126ba97SEli Cohen default: 2066e126ba97SEli Cohen return 0; 2067e126ba97SEli Cohen } 2068e126ba97SEli Cohen } 2069e126ba97SEli Cohen 2070e126ba97SEli Cohen static u8 calc_sig(void *wqe, int size) 2071e126ba97SEli Cohen { 2072e126ba97SEli Cohen u8 *p = wqe; 2073e126ba97SEli Cohen u8 res = 0; 2074e126ba97SEli Cohen int i; 2075e126ba97SEli Cohen 2076e126ba97SEli Cohen for (i = 0; i < size; i++) 2077e126ba97SEli Cohen res ^= p[i]; 2078e126ba97SEli Cohen 2079e126ba97SEli Cohen return ~res; 2080e126ba97SEli Cohen } 2081e126ba97SEli Cohen 2082e126ba97SEli Cohen static u8 wq_sig(void *wqe) 2083e126ba97SEli Cohen { 2084e126ba97SEli Cohen return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4); 2085e126ba97SEli Cohen } 2086e126ba97SEli Cohen 2087e126ba97SEli Cohen static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr, 2088e126ba97SEli Cohen void *wqe, int *sz) 2089e126ba97SEli Cohen { 2090e126ba97SEli Cohen struct mlx5_wqe_inline_seg *seg; 2091e126ba97SEli Cohen void *qend = qp->sq.qend; 2092e126ba97SEli Cohen void *addr; 2093e126ba97SEli Cohen int inl = 0; 2094e126ba97SEli Cohen int copy; 2095e126ba97SEli Cohen int len; 2096e126ba97SEli Cohen int i; 2097e126ba97SEli Cohen 2098e126ba97SEli Cohen seg = wqe; 2099e126ba97SEli Cohen wqe += sizeof(*seg); 2100e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) { 2101e126ba97SEli Cohen addr = (void *)(unsigned long)(wr->sg_list[i].addr); 2102e126ba97SEli Cohen len = wr->sg_list[i].length; 2103e126ba97SEli Cohen inl += len; 2104e126ba97SEli Cohen 2105e126ba97SEli Cohen if (unlikely(inl > qp->max_inline_data)) 2106e126ba97SEli Cohen return -ENOMEM; 2107e126ba97SEli Cohen 2108e126ba97SEli Cohen if (unlikely(wqe + len > qend)) { 2109e126ba97SEli Cohen copy = qend - wqe; 2110e126ba97SEli Cohen memcpy(wqe, addr, copy); 2111e126ba97SEli Cohen addr += copy; 2112e126ba97SEli Cohen len -= copy; 2113e126ba97SEli Cohen wqe = mlx5_get_send_wqe(qp, 0); 2114e126ba97SEli Cohen } 2115e126ba97SEli Cohen memcpy(wqe, addr, len); 2116e126ba97SEli Cohen wqe += len; 2117e126ba97SEli Cohen } 2118e126ba97SEli Cohen 2119e126ba97SEli Cohen seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG); 2120e126ba97SEli Cohen 2121e126ba97SEli Cohen *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16; 2122e126ba97SEli Cohen 2123e126ba97SEli Cohen return 0; 2124e126ba97SEli Cohen } 2125e126ba97SEli Cohen 2126e6631814SSagi Grimberg static u16 prot_field_size(enum ib_signature_type type) 2127e6631814SSagi Grimberg { 2128e6631814SSagi Grimberg switch (type) { 2129e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2130e6631814SSagi Grimberg return MLX5_DIF_SIZE; 2131e6631814SSagi Grimberg default: 2132e6631814SSagi Grimberg return 0; 2133e6631814SSagi Grimberg } 2134e6631814SSagi Grimberg } 2135e6631814SSagi Grimberg 2136e6631814SSagi Grimberg static u8 bs_selector(int block_size) 2137e6631814SSagi Grimberg { 2138e6631814SSagi Grimberg switch (block_size) { 2139e6631814SSagi Grimberg case 512: return 0x1; 2140e6631814SSagi Grimberg case 520: return 0x2; 2141e6631814SSagi Grimberg case 4096: return 0x3; 2142e6631814SSagi Grimberg case 4160: return 0x4; 2143e6631814SSagi Grimberg case 1073741824: return 0x5; 2144e6631814SSagi Grimberg default: return 0; 2145e6631814SSagi Grimberg } 2146e6631814SSagi Grimberg } 2147e6631814SSagi Grimberg 214878eda2bbSSagi Grimberg static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain, 2149142537f4SSagi Grimberg struct mlx5_bsf_inl *inl) 2150e6631814SSagi Grimberg { 2151142537f4SSagi Grimberg /* Valid inline section and allow BSF refresh */ 2152142537f4SSagi Grimberg inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID | 2153142537f4SSagi Grimberg MLX5_BSF_REFRESH_DIF); 2154142537f4SSagi Grimberg inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag); 2155142537f4SSagi Grimberg inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag); 2156142537f4SSagi Grimberg /* repeating block */ 2157142537f4SSagi Grimberg inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK; 2158142537f4SSagi Grimberg inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ? 2159142537f4SSagi Grimberg MLX5_DIF_CRC : MLX5_DIF_IPCS; 2160e6631814SSagi Grimberg 216178eda2bbSSagi Grimberg if (domain->sig.dif.ref_remap) 216278eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG; 2163e6631814SSagi Grimberg 216478eda2bbSSagi Grimberg if (domain->sig.dif.app_escape) { 216578eda2bbSSagi Grimberg if (domain->sig.dif.ref_escape) 216678eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE; 216778eda2bbSSagi Grimberg else 216878eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE; 2169e6631814SSagi Grimberg } 2170e6631814SSagi Grimberg 217178eda2bbSSagi Grimberg inl->dif_app_bitmask_check = 217278eda2bbSSagi Grimberg cpu_to_be16(domain->sig.dif.apptag_check_mask); 2173e6631814SSagi Grimberg } 2174e6631814SSagi Grimberg 2175e6631814SSagi Grimberg static int mlx5_set_bsf(struct ib_mr *sig_mr, 2176e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs, 2177e6631814SSagi Grimberg struct mlx5_bsf *bsf, u32 data_size) 2178e6631814SSagi Grimberg { 2179e6631814SSagi Grimberg struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig; 2180e6631814SSagi Grimberg struct mlx5_bsf_basic *basic = &bsf->basic; 2181e6631814SSagi Grimberg struct ib_sig_domain *mem = &sig_attrs->mem; 2182e6631814SSagi Grimberg struct ib_sig_domain *wire = &sig_attrs->wire; 2183e6631814SSagi Grimberg 2184c7f44fbdSSagi Grimberg memset(bsf, 0, sizeof(*bsf)); 2185e6631814SSagi Grimberg 2186142537f4SSagi Grimberg /* Basic + Extended + Inline */ 2187142537f4SSagi Grimberg basic->bsf_size_sbs = 1 << 7; 2188e6631814SSagi Grimberg /* Input domain check byte mask */ 2189e6631814SSagi Grimberg basic->check_byte_mask = sig_attrs->check_mask; 219078eda2bbSSagi Grimberg basic->raw_data_size = cpu_to_be32(data_size); 219178eda2bbSSagi Grimberg 219278eda2bbSSagi Grimberg /* Memory domain */ 219378eda2bbSSagi Grimberg switch (sig_attrs->mem.sig_type) { 219478eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 219578eda2bbSSagi Grimberg break; 219678eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 219778eda2bbSSagi Grimberg basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval); 219878eda2bbSSagi Grimberg basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx); 219978eda2bbSSagi Grimberg mlx5_fill_inl_bsf(mem, &bsf->m_inl); 220078eda2bbSSagi Grimberg break; 220178eda2bbSSagi Grimberg default: 220278eda2bbSSagi Grimberg return -EINVAL; 220378eda2bbSSagi Grimberg } 220478eda2bbSSagi Grimberg 220578eda2bbSSagi Grimberg /* Wire domain */ 220678eda2bbSSagi Grimberg switch (sig_attrs->wire.sig_type) { 220778eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 220878eda2bbSSagi Grimberg break; 220978eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2210e6631814SSagi Grimberg if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval && 221178eda2bbSSagi Grimberg mem->sig_type == wire->sig_type) { 2212e6631814SSagi Grimberg /* Same block structure */ 2213142537f4SSagi Grimberg basic->bsf_size_sbs |= 1 << 4; 2214e6631814SSagi Grimberg if (mem->sig.dif.bg_type == wire->sig.dif.bg_type) 2215fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK; 2216c7f44fbdSSagi Grimberg if (mem->sig.dif.app_tag == wire->sig.dif.app_tag) 2217fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK; 2218c7f44fbdSSagi Grimberg if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag) 2219fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK; 2220e6631814SSagi Grimberg } else 2221e6631814SSagi Grimberg basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval); 2222e6631814SSagi Grimberg 2223142537f4SSagi Grimberg basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx); 222478eda2bbSSagi Grimberg mlx5_fill_inl_bsf(wire, &bsf->w_inl); 2225e6631814SSagi Grimberg break; 2226e6631814SSagi Grimberg default: 2227e6631814SSagi Grimberg return -EINVAL; 2228e6631814SSagi Grimberg } 2229e6631814SSagi Grimberg 2230e6631814SSagi Grimberg return 0; 2231e6631814SSagi Grimberg } 2232e6631814SSagi Grimberg 2233e6631814SSagi Grimberg static int set_sig_data_segment(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, 2234e6631814SSagi Grimberg void **seg, int *size) 2235e6631814SSagi Grimberg { 2236e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs = wr->wr.sig_handover.sig_attrs; 2237e6631814SSagi Grimberg struct ib_mr *sig_mr = wr->wr.sig_handover.sig_mr; 2238e6631814SSagi Grimberg struct mlx5_bsf *bsf; 2239e6631814SSagi Grimberg u32 data_len = wr->sg_list->length; 2240e6631814SSagi Grimberg u32 data_key = wr->sg_list->lkey; 2241e6631814SSagi Grimberg u64 data_va = wr->sg_list->addr; 2242e6631814SSagi Grimberg int ret; 2243e6631814SSagi Grimberg int wqe_size; 2244e6631814SSagi Grimberg 22455c273b16SSagi Grimberg if (!wr->wr.sig_handover.prot || 22465c273b16SSagi Grimberg (data_key == wr->wr.sig_handover.prot->lkey && 22475c273b16SSagi Grimberg data_va == wr->wr.sig_handover.prot->addr && 22485c273b16SSagi Grimberg data_len == wr->wr.sig_handover.prot->length)) { 2249e6631814SSagi Grimberg /** 2250e6631814SSagi Grimberg * Source domain doesn't contain signature information 22515c273b16SSagi Grimberg * or data and protection are interleaved in memory. 2252e6631814SSagi Grimberg * So need construct: 2253e6631814SSagi Grimberg * ------------------ 2254e6631814SSagi Grimberg * | data_klm | 2255e6631814SSagi Grimberg * ------------------ 2256e6631814SSagi Grimberg * | BSF | 2257e6631814SSagi Grimberg * ------------------ 2258e6631814SSagi Grimberg **/ 2259e6631814SSagi Grimberg struct mlx5_klm *data_klm = *seg; 2260e6631814SSagi Grimberg 2261e6631814SSagi Grimberg data_klm->bcount = cpu_to_be32(data_len); 2262e6631814SSagi Grimberg data_klm->key = cpu_to_be32(data_key); 2263e6631814SSagi Grimberg data_klm->va = cpu_to_be64(data_va); 2264e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*data_klm), 64); 2265e6631814SSagi Grimberg } else { 2266e6631814SSagi Grimberg /** 2267e6631814SSagi Grimberg * Source domain contains signature information 2268e6631814SSagi Grimberg * So need construct a strided block format: 2269e6631814SSagi Grimberg * --------------------------- 2270e6631814SSagi Grimberg * | stride_block_ctrl | 2271e6631814SSagi Grimberg * --------------------------- 2272e6631814SSagi Grimberg * | data_klm | 2273e6631814SSagi Grimberg * --------------------------- 2274e6631814SSagi Grimberg * | prot_klm | 2275e6631814SSagi Grimberg * --------------------------- 2276e6631814SSagi Grimberg * | BSF | 2277e6631814SSagi Grimberg * --------------------------- 2278e6631814SSagi Grimberg **/ 2279e6631814SSagi Grimberg struct mlx5_stride_block_ctrl_seg *sblock_ctrl; 2280e6631814SSagi Grimberg struct mlx5_stride_block_entry *data_sentry; 2281e6631814SSagi Grimberg struct mlx5_stride_block_entry *prot_sentry; 2282e6631814SSagi Grimberg u32 prot_key = wr->wr.sig_handover.prot->lkey; 2283e6631814SSagi Grimberg u64 prot_va = wr->wr.sig_handover.prot->addr; 2284e6631814SSagi Grimberg u16 block_size = sig_attrs->mem.sig.dif.pi_interval; 2285e6631814SSagi Grimberg int prot_size; 2286e6631814SSagi Grimberg 2287e6631814SSagi Grimberg sblock_ctrl = *seg; 2288e6631814SSagi Grimberg data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl); 2289e6631814SSagi Grimberg prot_sentry = (void *)data_sentry + sizeof(*data_sentry); 2290e6631814SSagi Grimberg 2291e6631814SSagi Grimberg prot_size = prot_field_size(sig_attrs->mem.sig_type); 2292e6631814SSagi Grimberg if (!prot_size) { 2293e6631814SSagi Grimberg pr_err("Bad block size given: %u\n", block_size); 2294e6631814SSagi Grimberg return -EINVAL; 2295e6631814SSagi Grimberg } 2296e6631814SSagi Grimberg sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size + 2297e6631814SSagi Grimberg prot_size); 2298e6631814SSagi Grimberg sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP); 2299e6631814SSagi Grimberg sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size); 2300e6631814SSagi Grimberg sblock_ctrl->num_entries = cpu_to_be16(2); 2301e6631814SSagi Grimberg 2302e6631814SSagi Grimberg data_sentry->bcount = cpu_to_be16(block_size); 2303e6631814SSagi Grimberg data_sentry->key = cpu_to_be32(data_key); 2304e6631814SSagi Grimberg data_sentry->va = cpu_to_be64(data_va); 23055c273b16SSagi Grimberg data_sentry->stride = cpu_to_be16(block_size); 23065c273b16SSagi Grimberg 2307e6631814SSagi Grimberg prot_sentry->bcount = cpu_to_be16(prot_size); 2308e6631814SSagi Grimberg prot_sentry->key = cpu_to_be32(prot_key); 2309e6631814SSagi Grimberg prot_sentry->va = cpu_to_be64(prot_va); 2310e6631814SSagi Grimberg prot_sentry->stride = cpu_to_be16(prot_size); 23115c273b16SSagi Grimberg 2312e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) + 2313e6631814SSagi Grimberg sizeof(*prot_sentry), 64); 2314e6631814SSagi Grimberg } 2315e6631814SSagi Grimberg 2316e6631814SSagi Grimberg *seg += wqe_size; 2317e6631814SSagi Grimberg *size += wqe_size / 16; 2318e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2319e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2320e6631814SSagi Grimberg 2321e6631814SSagi Grimberg bsf = *seg; 2322e6631814SSagi Grimberg ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len); 2323e6631814SSagi Grimberg if (ret) 2324e6631814SSagi Grimberg return -EINVAL; 2325e6631814SSagi Grimberg 2326e6631814SSagi Grimberg *seg += sizeof(*bsf); 2327e6631814SSagi Grimberg *size += sizeof(*bsf) / 16; 2328e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2329e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2330e6631814SSagi Grimberg 2331e6631814SSagi Grimberg return 0; 2332e6631814SSagi Grimberg } 2333e6631814SSagi Grimberg 2334e6631814SSagi Grimberg static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg, 2335e6631814SSagi Grimberg struct ib_send_wr *wr, u32 nelements, 2336e6631814SSagi Grimberg u32 length, u32 pdn) 2337e6631814SSagi Grimberg { 2338e6631814SSagi Grimberg struct ib_mr *sig_mr = wr->wr.sig_handover.sig_mr; 2339e6631814SSagi Grimberg u32 sig_key = sig_mr->rkey; 2340d5436ba0SSagi Grimberg u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1; 2341e6631814SSagi Grimberg 2342e6631814SSagi Grimberg memset(seg, 0, sizeof(*seg)); 2343e6631814SSagi Grimberg 2344e6631814SSagi Grimberg seg->flags = get_umr_flags(wr->wr.sig_handover.access_flags) | 2345e6631814SSagi Grimberg MLX5_ACCESS_MODE_KLM; 2346e6631814SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00); 2347d5436ba0SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 | 2348e6631814SSagi Grimberg MLX5_MKEY_BSF_EN | pdn); 2349e6631814SSagi Grimberg seg->len = cpu_to_be64(length); 2350e6631814SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements))); 2351e6631814SSagi Grimberg seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE); 2352e6631814SSagi Grimberg } 2353e6631814SSagi Grimberg 2354e6631814SSagi Grimberg static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2355e6631814SSagi Grimberg struct ib_send_wr *wr, u32 nelements) 2356e6631814SSagi Grimberg { 2357e6631814SSagi Grimberg memset(umr, 0, sizeof(*umr)); 2358e6631814SSagi Grimberg 2359e6631814SSagi Grimberg umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE; 2360e6631814SSagi Grimberg umr->klm_octowords = get_klm_octo(nelements); 2361e6631814SSagi Grimberg umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE); 2362e6631814SSagi Grimberg umr->mkey_mask = sig_mkey_mask(); 2363e6631814SSagi Grimberg } 2364e6631814SSagi Grimberg 2365e6631814SSagi Grimberg 2366e6631814SSagi Grimberg static int set_sig_umr_wr(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, 2367e6631814SSagi Grimberg void **seg, int *size) 2368e6631814SSagi Grimberg { 2369e6631814SSagi Grimberg struct mlx5_ib_mr *sig_mr = to_mmr(wr->wr.sig_handover.sig_mr); 2370e6631814SSagi Grimberg u32 pdn = get_pd(qp)->pdn; 2371e6631814SSagi Grimberg u32 klm_oct_size; 2372e6631814SSagi Grimberg int region_len, ret; 2373e6631814SSagi Grimberg 2374e6631814SSagi Grimberg if (unlikely(wr->num_sge != 1) || 2375e6631814SSagi Grimberg unlikely(wr->wr.sig_handover.access_flags & 2376e6631814SSagi Grimberg IB_ACCESS_REMOTE_ATOMIC) || 2377d5436ba0SSagi Grimberg unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) || 2378d5436ba0SSagi Grimberg unlikely(!sig_mr->sig->sig_status_checked)) 2379e6631814SSagi Grimberg return -EINVAL; 2380e6631814SSagi Grimberg 2381e6631814SSagi Grimberg /* length of the protected region, data + protection */ 2382e6631814SSagi Grimberg region_len = wr->sg_list->length; 23838524867bSSagi Grimberg if (wr->wr.sig_handover.prot && 23848524867bSSagi Grimberg (wr->wr.sig_handover.prot->lkey != wr->sg_list->lkey || 23858524867bSSagi Grimberg wr->wr.sig_handover.prot->addr != wr->sg_list->addr || 23868524867bSSagi Grimberg wr->wr.sig_handover.prot->length != wr->sg_list->length)) 2387e6631814SSagi Grimberg region_len += wr->wr.sig_handover.prot->length; 2388e6631814SSagi Grimberg 2389e6631814SSagi Grimberg /** 2390e6631814SSagi Grimberg * KLM octoword size - if protection was provided 2391e6631814SSagi Grimberg * then we use strided block format (3 octowords), 2392e6631814SSagi Grimberg * else we use single KLM (1 octoword) 2393e6631814SSagi Grimberg **/ 2394e6631814SSagi Grimberg klm_oct_size = wr->wr.sig_handover.prot ? 3 : 1; 2395e6631814SSagi Grimberg 2396e6631814SSagi Grimberg set_sig_umr_segment(*seg, wr, klm_oct_size); 2397e6631814SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2398e6631814SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2399e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2400e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2401e6631814SSagi Grimberg 2402e6631814SSagi Grimberg set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn); 2403e6631814SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 2404e6631814SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 2405e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2406e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2407e6631814SSagi Grimberg 2408e6631814SSagi Grimberg ret = set_sig_data_segment(wr, qp, seg, size); 2409e6631814SSagi Grimberg if (ret) 2410e6631814SSagi Grimberg return ret; 2411e6631814SSagi Grimberg 2412d5436ba0SSagi Grimberg sig_mr->sig->sig_status_checked = false; 2413e6631814SSagi Grimberg return 0; 2414e6631814SSagi Grimberg } 2415e6631814SSagi Grimberg 2416e6631814SSagi Grimberg static int set_psv_wr(struct ib_sig_domain *domain, 2417e6631814SSagi Grimberg u32 psv_idx, void **seg, int *size) 2418e6631814SSagi Grimberg { 2419e6631814SSagi Grimberg struct mlx5_seg_set_psv *psv_seg = *seg; 2420e6631814SSagi Grimberg 2421e6631814SSagi Grimberg memset(psv_seg, 0, sizeof(*psv_seg)); 2422e6631814SSagi Grimberg psv_seg->psv_num = cpu_to_be32(psv_idx); 2423e6631814SSagi Grimberg switch (domain->sig_type) { 242478eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 242578eda2bbSSagi Grimberg break; 2426e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2427e6631814SSagi Grimberg psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 | 2428e6631814SSagi Grimberg domain->sig.dif.app_tag); 2429e6631814SSagi Grimberg psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag); 2430e6631814SSagi Grimberg break; 2431e6631814SSagi Grimberg default: 2432e6631814SSagi Grimberg pr_err("Bad signature type given.\n"); 2433e6631814SSagi Grimberg return 1; 2434e6631814SSagi Grimberg } 2435e6631814SSagi Grimberg 243678eda2bbSSagi Grimberg *seg += sizeof(*psv_seg); 243778eda2bbSSagi Grimberg *size += sizeof(*psv_seg) / 16; 243878eda2bbSSagi Grimberg 2439e6631814SSagi Grimberg return 0; 2440e6631814SSagi Grimberg } 2441e6631814SSagi Grimberg 2442e126ba97SEli Cohen static int set_frwr_li_wr(void **seg, struct ib_send_wr *wr, int *size, 2443e126ba97SEli Cohen struct mlx5_core_dev *mdev, struct mlx5_ib_pd *pd, struct mlx5_ib_qp *qp) 2444e126ba97SEli Cohen { 2445e126ba97SEli Cohen int writ = 0; 2446e126ba97SEli Cohen int li; 2447e126ba97SEli Cohen 2448e126ba97SEli Cohen li = wr->opcode == IB_WR_LOCAL_INV ? 1 : 0; 2449e126ba97SEli Cohen if (unlikely(wr->send_flags & IB_SEND_INLINE)) 2450e126ba97SEli Cohen return -EINVAL; 2451e126ba97SEli Cohen 2452e126ba97SEli Cohen set_frwr_umr_segment(*seg, wr, li); 2453e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2454e126ba97SEli Cohen *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2455e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2456e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2457e126ba97SEli Cohen set_mkey_segment(*seg, wr, li, &writ); 2458e126ba97SEli Cohen *seg += sizeof(struct mlx5_mkey_seg); 2459e126ba97SEli Cohen *size += sizeof(struct mlx5_mkey_seg) / 16; 2460e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2461e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2462e126ba97SEli Cohen if (!li) { 24639641b74eSEli Cohen if (unlikely(wr->wr.fast_reg.page_list_len > 24649641b74eSEli Cohen wr->wr.fast_reg.page_list->max_page_list_len)) 24659641b74eSEli Cohen return -ENOMEM; 24669641b74eSEli Cohen 2467e126ba97SEli Cohen set_frwr_pages(*seg, wr, mdev, pd, writ); 2468e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_data_seg); 2469e126ba97SEli Cohen *size += (sizeof(struct mlx5_wqe_data_seg) / 16); 2470e126ba97SEli Cohen } 2471e126ba97SEli Cohen return 0; 2472e126ba97SEli Cohen } 2473e126ba97SEli Cohen 2474e126ba97SEli Cohen static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16) 2475e126ba97SEli Cohen { 2476e126ba97SEli Cohen __be32 *p = NULL; 2477e126ba97SEli Cohen int tidx = idx; 2478e126ba97SEli Cohen int i, j; 2479e126ba97SEli Cohen 2480e126ba97SEli Cohen pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx)); 2481e126ba97SEli Cohen for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) { 2482e126ba97SEli Cohen if ((i & 0xf) == 0) { 2483e126ba97SEli Cohen void *buf = mlx5_get_send_wqe(qp, tidx); 2484e126ba97SEli Cohen tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1); 2485e126ba97SEli Cohen p = buf; 2486e126ba97SEli Cohen j = 0; 2487e126ba97SEli Cohen } 2488e126ba97SEli Cohen pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]), 2489e126ba97SEli Cohen be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]), 2490e126ba97SEli Cohen be32_to_cpu(p[j + 3])); 2491e126ba97SEli Cohen } 2492e126ba97SEli Cohen } 2493e126ba97SEli Cohen 2494e126ba97SEli Cohen static void mlx5_bf_copy(u64 __iomem *dst, u64 *src, 2495e126ba97SEli Cohen unsigned bytecnt, struct mlx5_ib_qp *qp) 2496e126ba97SEli Cohen { 2497e126ba97SEli Cohen while (bytecnt > 0) { 2498e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2499e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2500e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2501e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2502e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2503e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2504e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2505e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2506e126ba97SEli Cohen bytecnt -= 64; 2507e126ba97SEli Cohen if (unlikely(src == qp->sq.qend)) 2508e126ba97SEli Cohen src = mlx5_get_send_wqe(qp, 0); 2509e126ba97SEli Cohen } 2510e126ba97SEli Cohen } 2511e126ba97SEli Cohen 2512e126ba97SEli Cohen static u8 get_fence(u8 fence, struct ib_send_wr *wr) 2513e126ba97SEli Cohen { 2514e126ba97SEli Cohen if (unlikely(wr->opcode == IB_WR_LOCAL_INV && 2515e126ba97SEli Cohen wr->send_flags & IB_SEND_FENCE)) 2516e126ba97SEli Cohen return MLX5_FENCE_MODE_STRONG_ORDERING; 2517e126ba97SEli Cohen 2518e126ba97SEli Cohen if (unlikely(fence)) { 2519e126ba97SEli Cohen if (wr->send_flags & IB_SEND_FENCE) 2520e126ba97SEli Cohen return MLX5_FENCE_MODE_SMALL_AND_FENCE; 2521e126ba97SEli Cohen else 2522e126ba97SEli Cohen return fence; 2523e126ba97SEli Cohen 2524e126ba97SEli Cohen } else { 2525e126ba97SEli Cohen return 0; 2526e126ba97SEli Cohen } 2527e126ba97SEli Cohen } 2528e126ba97SEli Cohen 25296e5eadacSSagi Grimberg static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, 25306e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg **ctrl, 25316a4f139aSEli Cohen struct ib_send_wr *wr, unsigned *idx, 25326e5eadacSSagi Grimberg int *size, int nreq) 25336e5eadacSSagi Grimberg { 25346e5eadacSSagi Grimberg int err = 0; 25356e5eadacSSagi Grimberg 25366e5eadacSSagi Grimberg if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { 25376e5eadacSSagi Grimberg err = -ENOMEM; 25386e5eadacSSagi Grimberg return err; 25396e5eadacSSagi Grimberg } 25406e5eadacSSagi Grimberg 25416e5eadacSSagi Grimberg *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); 25426e5eadacSSagi Grimberg *seg = mlx5_get_send_wqe(qp, *idx); 25436e5eadacSSagi Grimberg *ctrl = *seg; 25446e5eadacSSagi Grimberg *(uint32_t *)(*seg + 8) = 0; 25456e5eadacSSagi Grimberg (*ctrl)->imm = send_ieth(wr); 25466e5eadacSSagi Grimberg (*ctrl)->fm_ce_se = qp->sq_signal_bits | 25476e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SIGNALED ? 25486e5eadacSSagi Grimberg MLX5_WQE_CTRL_CQ_UPDATE : 0) | 25496e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SOLICITED ? 25506e5eadacSSagi Grimberg MLX5_WQE_CTRL_SOLICITED : 0); 25516e5eadacSSagi Grimberg 25526e5eadacSSagi Grimberg *seg += sizeof(**ctrl); 25536e5eadacSSagi Grimberg *size = sizeof(**ctrl) / 16; 25546e5eadacSSagi Grimberg 25556e5eadacSSagi Grimberg return err; 25566e5eadacSSagi Grimberg } 25576e5eadacSSagi Grimberg 25586e5eadacSSagi Grimberg static void finish_wqe(struct mlx5_ib_qp *qp, 25596e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg *ctrl, 25606e5eadacSSagi Grimberg u8 size, unsigned idx, u64 wr_id, 25616e5eadacSSagi Grimberg int nreq, u8 fence, u8 next_fence, 25626e5eadacSSagi Grimberg u32 mlx5_opcode) 25636e5eadacSSagi Grimberg { 25646e5eadacSSagi Grimberg u8 opmod = 0; 25656e5eadacSSagi Grimberg 25666e5eadacSSagi Grimberg ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) | 25676e5eadacSSagi Grimberg mlx5_opcode | ((u32)opmod << 24)); 25686e5eadacSSagi Grimberg ctrl->qpn_ds = cpu_to_be32(size | (qp->mqp.qpn << 8)); 25696e5eadacSSagi Grimberg ctrl->fm_ce_se |= fence; 25706e5eadacSSagi Grimberg qp->fm_cache = next_fence; 25716e5eadacSSagi Grimberg if (unlikely(qp->wq_sig)) 25726e5eadacSSagi Grimberg ctrl->signature = wq_sig(ctrl); 25736e5eadacSSagi Grimberg 25746e5eadacSSagi Grimberg qp->sq.wrid[idx] = wr_id; 25756e5eadacSSagi Grimberg qp->sq.w_list[idx].opcode = mlx5_opcode; 25766e5eadacSSagi Grimberg qp->sq.wqe_head[idx] = qp->sq.head + nreq; 25776e5eadacSSagi Grimberg qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB); 25786e5eadacSSagi Grimberg qp->sq.w_list[idx].next = qp->sq.cur_post; 25796e5eadacSSagi Grimberg } 25806e5eadacSSagi Grimberg 25816e5eadacSSagi Grimberg 2582e126ba97SEli Cohen int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 2583e126ba97SEli Cohen struct ib_send_wr **bad_wr) 2584e126ba97SEli Cohen { 2585e126ba97SEli Cohen struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */ 2586e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 25879603b61dSJack Morgenstein struct mlx5_core_dev *mdev = dev->mdev; 2588e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2589e6631814SSagi Grimberg struct mlx5_ib_mr *mr; 2590e126ba97SEli Cohen struct mlx5_wqe_data_seg *dpseg; 2591e126ba97SEli Cohen struct mlx5_wqe_xrc_seg *xrc; 2592e126ba97SEli Cohen struct mlx5_bf *bf = qp->bf; 2593e126ba97SEli Cohen int uninitialized_var(size); 2594e126ba97SEli Cohen void *qend = qp->sq.qend; 2595e126ba97SEli Cohen unsigned long flags; 2596e126ba97SEli Cohen unsigned idx; 2597e126ba97SEli Cohen int err = 0; 2598e126ba97SEli Cohen int inl = 0; 2599e126ba97SEli Cohen int num_sge; 2600e126ba97SEli Cohen void *seg; 2601e126ba97SEli Cohen int nreq; 2602e126ba97SEli Cohen int i; 2603e126ba97SEli Cohen u8 next_fence = 0; 2604e126ba97SEli Cohen u8 fence; 2605e126ba97SEli Cohen 2606e126ba97SEli Cohen spin_lock_irqsave(&qp->sq.lock, flags); 2607e126ba97SEli Cohen 2608e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2609a8f731ebSFabian Frederick if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) { 2610e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2611e126ba97SEli Cohen err = -EINVAL; 2612e126ba97SEli Cohen *bad_wr = wr; 2613e126ba97SEli Cohen goto out; 2614e126ba97SEli Cohen } 2615e126ba97SEli Cohen 2616e126ba97SEli Cohen fence = qp->fm_cache; 2617e126ba97SEli Cohen num_sge = wr->num_sge; 2618e126ba97SEli Cohen if (unlikely(num_sge > qp->sq.max_gs)) { 2619e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2620e126ba97SEli Cohen err = -ENOMEM; 2621e126ba97SEli Cohen *bad_wr = wr; 2622e126ba97SEli Cohen goto out; 2623e126ba97SEli Cohen } 2624e126ba97SEli Cohen 26256e5eadacSSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq); 26266e5eadacSSagi Grimberg if (err) { 26276e5eadacSSagi Grimberg mlx5_ib_warn(dev, "\n"); 26286e5eadacSSagi Grimberg err = -ENOMEM; 26296e5eadacSSagi Grimberg *bad_wr = wr; 26306e5eadacSSagi Grimberg goto out; 26316e5eadacSSagi Grimberg } 2632e126ba97SEli Cohen 2633e126ba97SEli Cohen switch (ibqp->qp_type) { 2634e126ba97SEli Cohen case IB_QPT_XRC_INI: 2635e126ba97SEli Cohen xrc = seg; 2636e126ba97SEli Cohen xrc->xrc_srqn = htonl(wr->xrc_remote_srq_num); 2637e126ba97SEli Cohen seg += sizeof(*xrc); 2638e126ba97SEli Cohen size += sizeof(*xrc) / 16; 2639e126ba97SEli Cohen /* fall through */ 2640e126ba97SEli Cohen case IB_QPT_RC: 2641e126ba97SEli Cohen switch (wr->opcode) { 2642e126ba97SEli Cohen case IB_WR_RDMA_READ: 2643e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2644e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2645e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2646e126ba97SEli Cohen wr->wr.rdma.rkey); 2647e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2648e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2649e126ba97SEli Cohen break; 2650e126ba97SEli Cohen 2651e126ba97SEli Cohen case IB_WR_ATOMIC_CMP_AND_SWP: 2652e126ba97SEli Cohen case IB_WR_ATOMIC_FETCH_AND_ADD: 2653e126ba97SEli Cohen case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: 265481bea28fSEli Cohen mlx5_ib_warn(dev, "Atomic operations are not supported yet\n"); 265581bea28fSEli Cohen err = -ENOSYS; 265681bea28fSEli Cohen *bad_wr = wr; 265781bea28fSEli Cohen goto out; 2658e126ba97SEli Cohen 2659e126ba97SEli Cohen case IB_WR_LOCAL_INV: 2660e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2661e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_LOCAL_INV; 2662e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey); 2663e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2664e126ba97SEli Cohen if (err) { 2665e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2666e126ba97SEli Cohen *bad_wr = wr; 2667e126ba97SEli Cohen goto out; 2668e126ba97SEli Cohen } 2669e126ba97SEli Cohen num_sge = 0; 2670e126ba97SEli Cohen break; 2671e126ba97SEli Cohen 2672e126ba97SEli Cohen case IB_WR_FAST_REG_MR: 2673e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2674e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_FAST_REG_MR; 2675e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2676e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2677e126ba97SEli Cohen if (err) { 2678e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2679e126ba97SEli Cohen *bad_wr = wr; 2680e126ba97SEli Cohen goto out; 2681e126ba97SEli Cohen } 2682e126ba97SEli Cohen num_sge = 0; 2683e126ba97SEli Cohen break; 2684e126ba97SEli Cohen 2685e6631814SSagi Grimberg case IB_WR_REG_SIG_MR: 2686e6631814SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR; 2687e6631814SSagi Grimberg mr = to_mmr(wr->wr.sig_handover.sig_mr); 2688e6631814SSagi Grimberg 2689e6631814SSagi Grimberg ctrl->imm = cpu_to_be32(mr->ibmr.rkey); 2690e6631814SSagi Grimberg err = set_sig_umr_wr(wr, qp, &seg, &size); 2691e6631814SSagi Grimberg if (err) { 2692e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2693e6631814SSagi Grimberg *bad_wr = wr; 2694e6631814SSagi Grimberg goto out; 2695e6631814SSagi Grimberg } 2696e6631814SSagi Grimberg 2697e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2698e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2699e6631814SSagi Grimberg next_fence, MLX5_OPCODE_UMR); 2700e6631814SSagi Grimberg /* 2701e6631814SSagi Grimberg * SET_PSV WQEs are not signaled and solicited 2702e6631814SSagi Grimberg * on error 2703e6631814SSagi Grimberg */ 2704e6631814SSagi Grimberg wr->send_flags &= ~IB_SEND_SIGNALED; 2705e6631814SSagi Grimberg wr->send_flags |= IB_SEND_SOLICITED; 2706e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2707e6631814SSagi Grimberg &idx, &size, nreq); 2708e6631814SSagi Grimberg if (err) { 2709e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2710e6631814SSagi Grimberg err = -ENOMEM; 2711e6631814SSagi Grimberg *bad_wr = wr; 2712e6631814SSagi Grimberg goto out; 2713e6631814SSagi Grimberg } 2714e6631814SSagi Grimberg 2715e6631814SSagi Grimberg err = set_psv_wr(&wr->wr.sig_handover.sig_attrs->mem, 2716e6631814SSagi Grimberg mr->sig->psv_memory.psv_idx, &seg, 2717e6631814SSagi Grimberg &size); 2718e6631814SSagi Grimberg if (err) { 2719e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2720e6631814SSagi Grimberg *bad_wr = wr; 2721e6631814SSagi Grimberg goto out; 2722e6631814SSagi Grimberg } 2723e6631814SSagi Grimberg 2724e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2725e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2726e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2727e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2728e6631814SSagi Grimberg &idx, &size, nreq); 2729e6631814SSagi Grimberg if (err) { 2730e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2731e6631814SSagi Grimberg err = -ENOMEM; 2732e6631814SSagi Grimberg *bad_wr = wr; 2733e6631814SSagi Grimberg goto out; 2734e6631814SSagi Grimberg } 2735e6631814SSagi Grimberg 2736e6631814SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2737e6631814SSagi Grimberg err = set_psv_wr(&wr->wr.sig_handover.sig_attrs->wire, 2738e6631814SSagi Grimberg mr->sig->psv_wire.psv_idx, &seg, 2739e6631814SSagi Grimberg &size); 2740e6631814SSagi Grimberg if (err) { 2741e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2742e6631814SSagi Grimberg *bad_wr = wr; 2743e6631814SSagi Grimberg goto out; 2744e6631814SSagi Grimberg } 2745e6631814SSagi Grimberg 2746e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2747e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2748e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2749e6631814SSagi Grimberg num_sge = 0; 2750e6631814SSagi Grimberg goto skip_psv; 2751e6631814SSagi Grimberg 2752e126ba97SEli Cohen default: 2753e126ba97SEli Cohen break; 2754e126ba97SEli Cohen } 2755e126ba97SEli Cohen break; 2756e126ba97SEli Cohen 2757e126ba97SEli Cohen case IB_QPT_UC: 2758e126ba97SEli Cohen switch (wr->opcode) { 2759e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2760e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2761e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2762e126ba97SEli Cohen wr->wr.rdma.rkey); 2763e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2764e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2765e126ba97SEli Cohen break; 2766e126ba97SEli Cohen 2767e126ba97SEli Cohen default: 2768e126ba97SEli Cohen break; 2769e126ba97SEli Cohen } 2770e126ba97SEli Cohen break; 2771e126ba97SEli Cohen 2772e126ba97SEli Cohen case IB_QPT_UD: 2773e126ba97SEli Cohen case IB_QPT_SMI: 2774e126ba97SEli Cohen case IB_QPT_GSI: 2775e126ba97SEli Cohen set_datagram_seg(seg, wr); 2776e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_datagram_seg); 2777e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_datagram_seg) / 16; 2778e126ba97SEli Cohen if (unlikely((seg == qend))) 2779e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2780e126ba97SEli Cohen break; 2781e126ba97SEli Cohen 2782e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 2783e126ba97SEli Cohen if (wr->opcode != MLX5_IB_WR_UMR) { 2784e126ba97SEli Cohen err = -EINVAL; 2785e126ba97SEli Cohen mlx5_ib_warn(dev, "bad opcode\n"); 2786e126ba97SEli Cohen goto out; 2787e126ba97SEli Cohen } 2788e126ba97SEli Cohen qp->sq.wr_data[idx] = MLX5_IB_WR_UMR; 2789e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2790e126ba97SEli Cohen set_reg_umr_segment(seg, wr); 2791e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2792e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2793e126ba97SEli Cohen if (unlikely((seg == qend))) 2794e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2795e126ba97SEli Cohen set_reg_mkey_segment(seg, wr); 2796e126ba97SEli Cohen seg += sizeof(struct mlx5_mkey_seg); 2797e126ba97SEli Cohen size += sizeof(struct mlx5_mkey_seg) / 16; 2798e126ba97SEli Cohen if (unlikely((seg == qend))) 2799e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2800e126ba97SEli Cohen break; 2801e126ba97SEli Cohen 2802e126ba97SEli Cohen default: 2803e126ba97SEli Cohen break; 2804e126ba97SEli Cohen } 2805e126ba97SEli Cohen 2806e126ba97SEli Cohen if (wr->send_flags & IB_SEND_INLINE && num_sge) { 2807e126ba97SEli Cohen int uninitialized_var(sz); 2808e126ba97SEli Cohen 2809e126ba97SEli Cohen err = set_data_inl_seg(qp, wr, seg, &sz); 2810e126ba97SEli Cohen if (unlikely(err)) { 2811e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2812e126ba97SEli Cohen *bad_wr = wr; 2813e126ba97SEli Cohen goto out; 2814e126ba97SEli Cohen } 2815e126ba97SEli Cohen inl = 1; 2816e126ba97SEli Cohen size += sz; 2817e126ba97SEli Cohen } else { 2818e126ba97SEli Cohen dpseg = seg; 2819e126ba97SEli Cohen for (i = 0; i < num_sge; i++) { 2820e126ba97SEli Cohen if (unlikely(dpseg == qend)) { 2821e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2822e126ba97SEli Cohen dpseg = seg; 2823e126ba97SEli Cohen } 2824e126ba97SEli Cohen if (likely(wr->sg_list[i].length)) { 2825e126ba97SEli Cohen set_data_ptr_seg(dpseg, wr->sg_list + i); 2826e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_data_seg) / 16; 2827e126ba97SEli Cohen dpseg++; 2828e126ba97SEli Cohen } 2829e126ba97SEli Cohen } 2830e126ba97SEli Cohen } 2831e126ba97SEli Cohen 28326e5eadacSSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq, 28336e5eadacSSagi Grimberg get_fence(fence, wr), next_fence, 28346e5eadacSSagi Grimberg mlx5_ib_opcode[wr->opcode]); 2835e6631814SSagi Grimberg skip_psv: 2836e126ba97SEli Cohen if (0) 2837e126ba97SEli Cohen dump_wqe(qp, idx, size); 2838e126ba97SEli Cohen } 2839e126ba97SEli Cohen 2840e126ba97SEli Cohen out: 2841e126ba97SEli Cohen if (likely(nreq)) { 2842e126ba97SEli Cohen qp->sq.head += nreq; 2843e126ba97SEli Cohen 2844e126ba97SEli Cohen /* Make sure that descriptors are written before 2845e126ba97SEli Cohen * updating doorbell record and ringing the doorbell 2846e126ba97SEli Cohen */ 2847e126ba97SEli Cohen wmb(); 2848e126ba97SEli Cohen 2849e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post); 2850e126ba97SEli Cohen 2851ada388f7SEli Cohen /* Make sure doorbell record is visible to the HCA before 2852ada388f7SEli Cohen * we hit doorbell */ 2853ada388f7SEli Cohen wmb(); 2854ada388f7SEli Cohen 2855e126ba97SEli Cohen if (bf->need_lock) 2856e126ba97SEli Cohen spin_lock(&bf->lock); 28576a4f139aSEli Cohen else 28586a4f139aSEli Cohen __acquire(&bf->lock); 2859e126ba97SEli Cohen 2860e126ba97SEli Cohen /* TBD enable WC */ 2861e126ba97SEli Cohen if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) { 2862e126ba97SEli Cohen mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp); 2863e126ba97SEli Cohen /* wc_wmb(); */ 2864e126ba97SEli Cohen } else { 2865e126ba97SEli Cohen mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset, 2866e126ba97SEli Cohen MLX5_GET_DOORBELL_LOCK(&bf->lock32)); 2867e126ba97SEli Cohen /* Make sure doorbells don't leak out of SQ spinlock 2868e126ba97SEli Cohen * and reach the HCA out of order. 2869e126ba97SEli Cohen */ 2870e126ba97SEli Cohen mmiowb(); 2871e126ba97SEli Cohen } 2872e126ba97SEli Cohen bf->offset ^= bf->buf_size; 2873e126ba97SEli Cohen if (bf->need_lock) 2874e126ba97SEli Cohen spin_unlock(&bf->lock); 28756a4f139aSEli Cohen else 28766a4f139aSEli Cohen __release(&bf->lock); 2877e126ba97SEli Cohen } 2878e126ba97SEli Cohen 2879e126ba97SEli Cohen spin_unlock_irqrestore(&qp->sq.lock, flags); 2880e126ba97SEli Cohen 2881e126ba97SEli Cohen return err; 2882e126ba97SEli Cohen } 2883e126ba97SEli Cohen 2884e126ba97SEli Cohen static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size) 2885e126ba97SEli Cohen { 2886e126ba97SEli Cohen sig->signature = calc_sig(sig, size); 2887e126ba97SEli Cohen } 2888e126ba97SEli Cohen 2889e126ba97SEli Cohen int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 2890e126ba97SEli Cohen struct ib_recv_wr **bad_wr) 2891e126ba97SEli Cohen { 2892e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2893e126ba97SEli Cohen struct mlx5_wqe_data_seg *scat; 2894e126ba97SEli Cohen struct mlx5_rwqe_sig *sig; 2895e126ba97SEli Cohen unsigned long flags; 2896e126ba97SEli Cohen int err = 0; 2897e126ba97SEli Cohen int nreq; 2898e126ba97SEli Cohen int ind; 2899e126ba97SEli Cohen int i; 2900e126ba97SEli Cohen 2901e126ba97SEli Cohen spin_lock_irqsave(&qp->rq.lock, flags); 2902e126ba97SEli Cohen 2903e126ba97SEli Cohen ind = qp->rq.head & (qp->rq.wqe_cnt - 1); 2904e126ba97SEli Cohen 2905e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2906e126ba97SEli Cohen if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) { 2907e126ba97SEli Cohen err = -ENOMEM; 2908e126ba97SEli Cohen *bad_wr = wr; 2909e126ba97SEli Cohen goto out; 2910e126ba97SEli Cohen } 2911e126ba97SEli Cohen 2912e126ba97SEli Cohen if (unlikely(wr->num_sge > qp->rq.max_gs)) { 2913e126ba97SEli Cohen err = -EINVAL; 2914e126ba97SEli Cohen *bad_wr = wr; 2915e126ba97SEli Cohen goto out; 2916e126ba97SEli Cohen } 2917e126ba97SEli Cohen 2918e126ba97SEli Cohen scat = get_recv_wqe(qp, ind); 2919e126ba97SEli Cohen if (qp->wq_sig) 2920e126ba97SEli Cohen scat++; 2921e126ba97SEli Cohen 2922e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) 2923e126ba97SEli Cohen set_data_ptr_seg(scat + i, wr->sg_list + i); 2924e126ba97SEli Cohen 2925e126ba97SEli Cohen if (i < qp->rq.max_gs) { 2926e126ba97SEli Cohen scat[i].byte_count = 0; 2927e126ba97SEli Cohen scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY); 2928e126ba97SEli Cohen scat[i].addr = 0; 2929e126ba97SEli Cohen } 2930e126ba97SEli Cohen 2931e126ba97SEli Cohen if (qp->wq_sig) { 2932e126ba97SEli Cohen sig = (struct mlx5_rwqe_sig *)scat; 2933e126ba97SEli Cohen set_sig_seg(sig, (qp->rq.max_gs + 1) << 2); 2934e126ba97SEli Cohen } 2935e126ba97SEli Cohen 2936e126ba97SEli Cohen qp->rq.wrid[ind] = wr->wr_id; 2937e126ba97SEli Cohen 2938e126ba97SEli Cohen ind = (ind + 1) & (qp->rq.wqe_cnt - 1); 2939e126ba97SEli Cohen } 2940e126ba97SEli Cohen 2941e126ba97SEli Cohen out: 2942e126ba97SEli Cohen if (likely(nreq)) { 2943e126ba97SEli Cohen qp->rq.head += nreq; 2944e126ba97SEli Cohen 2945e126ba97SEli Cohen /* Make sure that descriptors are written before 2946e126ba97SEli Cohen * doorbell record. 2947e126ba97SEli Cohen */ 2948e126ba97SEli Cohen wmb(); 2949e126ba97SEli Cohen 2950e126ba97SEli Cohen *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff); 2951e126ba97SEli Cohen } 2952e126ba97SEli Cohen 2953e126ba97SEli Cohen spin_unlock_irqrestore(&qp->rq.lock, flags); 2954e126ba97SEli Cohen 2955e126ba97SEli Cohen return err; 2956e126ba97SEli Cohen } 2957e126ba97SEli Cohen 2958e126ba97SEli Cohen static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state) 2959e126ba97SEli Cohen { 2960e126ba97SEli Cohen switch (mlx5_state) { 2961e126ba97SEli Cohen case MLX5_QP_STATE_RST: return IB_QPS_RESET; 2962e126ba97SEli Cohen case MLX5_QP_STATE_INIT: return IB_QPS_INIT; 2963e126ba97SEli Cohen case MLX5_QP_STATE_RTR: return IB_QPS_RTR; 2964e126ba97SEli Cohen case MLX5_QP_STATE_RTS: return IB_QPS_RTS; 2965e126ba97SEli Cohen case MLX5_QP_STATE_SQ_DRAINING: 2966e126ba97SEli Cohen case MLX5_QP_STATE_SQD: return IB_QPS_SQD; 2967e126ba97SEli Cohen case MLX5_QP_STATE_SQER: return IB_QPS_SQE; 2968e126ba97SEli Cohen case MLX5_QP_STATE_ERR: return IB_QPS_ERR; 2969e126ba97SEli Cohen default: return -1; 2970e126ba97SEli Cohen } 2971e126ba97SEli Cohen } 2972e126ba97SEli Cohen 2973e126ba97SEli Cohen static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state) 2974e126ba97SEli Cohen { 2975e126ba97SEli Cohen switch (mlx5_mig_state) { 2976e126ba97SEli Cohen case MLX5_QP_PM_ARMED: return IB_MIG_ARMED; 2977e126ba97SEli Cohen case MLX5_QP_PM_REARM: return IB_MIG_REARM; 2978e126ba97SEli Cohen case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED; 2979e126ba97SEli Cohen default: return -1; 2980e126ba97SEli Cohen } 2981e126ba97SEli Cohen } 2982e126ba97SEli Cohen 2983e126ba97SEli Cohen static int to_ib_qp_access_flags(int mlx5_flags) 2984e126ba97SEli Cohen { 2985e126ba97SEli Cohen int ib_flags = 0; 2986e126ba97SEli Cohen 2987e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RRE) 2988e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_READ; 2989e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RWE) 2990e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_WRITE; 2991e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RAE) 2992e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_ATOMIC; 2993e126ba97SEli Cohen 2994e126ba97SEli Cohen return ib_flags; 2995e126ba97SEli Cohen } 2996e126ba97SEli Cohen 2997e126ba97SEli Cohen static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr, 2998e126ba97SEli Cohen struct mlx5_qp_path *path) 2999e126ba97SEli Cohen { 30009603b61dSJack Morgenstein struct mlx5_core_dev *dev = ibdev->mdev; 3001e126ba97SEli Cohen 3002e126ba97SEli Cohen memset(ib_ah_attr, 0, sizeof(*ib_ah_attr)); 3003e126ba97SEli Cohen ib_ah_attr->port_num = path->port; 3004e126ba97SEli Cohen 3005c7a08ac7SEli Cohen if (ib_ah_attr->port_num == 0 || 3006938fe83cSSaeed Mahameed ib_ah_attr->port_num > MLX5_CAP_GEN(dev, num_ports)) 3007e126ba97SEli Cohen return; 3008e126ba97SEli Cohen 3009e126ba97SEli Cohen ib_ah_attr->sl = path->sl & 0xf; 3010e126ba97SEli Cohen 3011e126ba97SEli Cohen ib_ah_attr->dlid = be16_to_cpu(path->rlid); 3012e126ba97SEli Cohen ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f; 3013e126ba97SEli Cohen ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0; 3014e126ba97SEli Cohen ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0; 3015e126ba97SEli Cohen if (ib_ah_attr->ah_flags) { 3016e126ba97SEli Cohen ib_ah_attr->grh.sgid_index = path->mgid_index; 3017e126ba97SEli Cohen ib_ah_attr->grh.hop_limit = path->hop_limit; 3018e126ba97SEli Cohen ib_ah_attr->grh.traffic_class = 3019e126ba97SEli Cohen (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; 3020e126ba97SEli Cohen ib_ah_attr->grh.flow_label = 3021e126ba97SEli Cohen be32_to_cpu(path->tclass_flowlabel) & 0xfffff; 3022e126ba97SEli Cohen memcpy(ib_ah_attr->grh.dgid.raw, 3023e126ba97SEli Cohen path->rgid, sizeof(ib_ah_attr->grh.dgid.raw)); 3024e126ba97SEli Cohen } 3025e126ba97SEli Cohen } 3026e126ba97SEli Cohen 3027e126ba97SEli Cohen int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 3028e126ba97SEli Cohen struct ib_qp_init_attr *qp_init_attr) 3029e126ba97SEli Cohen { 3030e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 3031e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 3032e126ba97SEli Cohen struct mlx5_query_qp_mbox_out *outb; 3033e126ba97SEli Cohen struct mlx5_qp_context *context; 3034e126ba97SEli Cohen int mlx5_state; 3035e126ba97SEli Cohen int err = 0; 3036e126ba97SEli Cohen 30376aec21f6SHaggai Eran #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 30386aec21f6SHaggai Eran /* 30396aec21f6SHaggai Eran * Wait for any outstanding page faults, in case the user frees memory 30406aec21f6SHaggai Eran * based upon this query's result. 30416aec21f6SHaggai Eran */ 30426aec21f6SHaggai Eran flush_workqueue(mlx5_ib_page_fault_wq); 30436aec21f6SHaggai Eran #endif 30446aec21f6SHaggai Eran 3045e126ba97SEli Cohen mutex_lock(&qp->mutex); 3046e126ba97SEli Cohen outb = kzalloc(sizeof(*outb), GFP_KERNEL); 3047e126ba97SEli Cohen if (!outb) { 3048e126ba97SEli Cohen err = -ENOMEM; 3049e126ba97SEli Cohen goto out; 3050e126ba97SEli Cohen } 3051e126ba97SEli Cohen context = &outb->ctx; 30529603b61dSJack Morgenstein err = mlx5_core_qp_query(dev->mdev, &qp->mqp, outb, sizeof(*outb)); 3053e126ba97SEli Cohen if (err) 3054e126ba97SEli Cohen goto out_free; 3055e126ba97SEli Cohen 3056e126ba97SEli Cohen mlx5_state = be32_to_cpu(context->flags) >> 28; 3057e126ba97SEli Cohen 3058e126ba97SEli Cohen qp->state = to_ib_qp_state(mlx5_state); 3059e126ba97SEli Cohen qp_attr->qp_state = qp->state; 3060e126ba97SEli Cohen qp_attr->path_mtu = context->mtu_msgmax >> 5; 3061e126ba97SEli Cohen qp_attr->path_mig_state = 3062e126ba97SEli Cohen to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3); 3063e126ba97SEli Cohen qp_attr->qkey = be32_to_cpu(context->qkey); 3064e126ba97SEli Cohen qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff; 3065e126ba97SEli Cohen qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff; 3066e126ba97SEli Cohen qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff; 3067e126ba97SEli Cohen qp_attr->qp_access_flags = 3068e126ba97SEli Cohen to_ib_qp_access_flags(be32_to_cpu(context->params2)); 3069e126ba97SEli Cohen 3070e126ba97SEli Cohen if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) { 3071e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); 3072e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); 3073e126ba97SEli Cohen qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f; 3074e126ba97SEli Cohen qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; 3075e126ba97SEli Cohen } 3076e126ba97SEli Cohen 3077e126ba97SEli Cohen qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f; 3078e126ba97SEli Cohen qp_attr->port_num = context->pri_path.port; 3079e126ba97SEli Cohen 3080e126ba97SEli Cohen /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ 3081e126ba97SEli Cohen qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING; 3082e126ba97SEli Cohen 3083e126ba97SEli Cohen qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7); 3084e126ba97SEli Cohen 3085e126ba97SEli Cohen qp_attr->max_dest_rd_atomic = 3086e126ba97SEli Cohen 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); 3087e126ba97SEli Cohen qp_attr->min_rnr_timer = 3088e126ba97SEli Cohen (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; 3089e126ba97SEli Cohen qp_attr->timeout = context->pri_path.ackto_lt >> 3; 3090e126ba97SEli Cohen qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; 3091e126ba97SEli Cohen qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7; 3092e126ba97SEli Cohen qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3; 3093e126ba97SEli Cohen qp_attr->cur_qp_state = qp_attr->qp_state; 3094e126ba97SEli Cohen qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; 3095e126ba97SEli Cohen qp_attr->cap.max_recv_sge = qp->rq.max_gs; 3096e126ba97SEli Cohen 3097e126ba97SEli Cohen if (!ibqp->uobject) { 3098e126ba97SEli Cohen qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; 3099e126ba97SEli Cohen qp_attr->cap.max_send_sge = qp->sq.max_gs; 3100e126ba97SEli Cohen } else { 3101e126ba97SEli Cohen qp_attr->cap.max_send_wr = 0; 3102e126ba97SEli Cohen qp_attr->cap.max_send_sge = 0; 3103e126ba97SEli Cohen } 3104e126ba97SEli Cohen 3105e126ba97SEli Cohen /* We don't support inline sends for kernel QPs (yet), and we 3106e126ba97SEli Cohen * don't know what userspace's value should be. 3107e126ba97SEli Cohen */ 3108e126ba97SEli Cohen qp_attr->cap.max_inline_data = 0; 3109e126ba97SEli Cohen 3110e126ba97SEli Cohen qp_init_attr->cap = qp_attr->cap; 3111e126ba97SEli Cohen 3112e126ba97SEli Cohen qp_init_attr->create_flags = 0; 3113e126ba97SEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 3114e126ba97SEli Cohen qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; 3115e126ba97SEli Cohen 3116e126ba97SEli Cohen qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ? 3117e126ba97SEli Cohen IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR; 3118e126ba97SEli Cohen 3119e126ba97SEli Cohen out_free: 3120e126ba97SEli Cohen kfree(outb); 3121e126ba97SEli Cohen 3122e126ba97SEli Cohen out: 3123e126ba97SEli Cohen mutex_unlock(&qp->mutex); 3124e126ba97SEli Cohen return err; 3125e126ba97SEli Cohen } 3126e126ba97SEli Cohen 3127e126ba97SEli Cohen struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 3128e126ba97SEli Cohen struct ib_ucontext *context, 3129e126ba97SEli Cohen struct ib_udata *udata) 3130e126ba97SEli Cohen { 3131e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibdev); 3132e126ba97SEli Cohen struct mlx5_ib_xrcd *xrcd; 3133e126ba97SEli Cohen int err; 3134e126ba97SEli Cohen 3135938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(dev->mdev, xrc)) 3136e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 3137e126ba97SEli Cohen 3138e126ba97SEli Cohen xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL); 3139e126ba97SEli Cohen if (!xrcd) 3140e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3141e126ba97SEli Cohen 31429603b61dSJack Morgenstein err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn); 3143e126ba97SEli Cohen if (err) { 3144e126ba97SEli Cohen kfree(xrcd); 3145e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3146e126ba97SEli Cohen } 3147e126ba97SEli Cohen 3148e126ba97SEli Cohen return &xrcd->ibxrcd; 3149e126ba97SEli Cohen } 3150e126ba97SEli Cohen 3151e126ba97SEli Cohen int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 3152e126ba97SEli Cohen { 3153e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(xrcd->device); 3154e126ba97SEli Cohen u32 xrcdn = to_mxrcd(xrcd)->xrcdn; 3155e126ba97SEli Cohen int err; 3156e126ba97SEli Cohen 31579603b61dSJack Morgenstein err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn); 3158e126ba97SEli Cohen if (err) { 3159e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn); 3160e126ba97SEli Cohen return err; 3161e126ba97SEli Cohen } 3162e126ba97SEli Cohen 3163e126ba97SEli Cohen kfree(xrcd); 3164e126ba97SEli Cohen 3165e126ba97SEli Cohen return 0; 3166e126ba97SEli Cohen } 3167