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> 352811ba51SAchiad Shochat #include <rdma/ib_cache.h> 36cfb5e088SHaggai Abramovsky #include <rdma/ib_user_verbs.h> 37e126ba97SEli Cohen #include "mlx5_ib.h" 38e126ba97SEli Cohen #include "user.h" 39e126ba97SEli Cohen 40e126ba97SEli Cohen /* not supported currently */ 41e126ba97SEli Cohen static int wq_signature; 42e126ba97SEli Cohen 43e126ba97SEli Cohen enum { 44e126ba97SEli Cohen MLX5_IB_ACK_REQ_FREQ = 8, 45e126ba97SEli Cohen }; 46e126ba97SEli Cohen 47e126ba97SEli Cohen enum { 48e126ba97SEli Cohen MLX5_IB_DEFAULT_SCHED_QUEUE = 0x83, 49e126ba97SEli Cohen MLX5_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f, 50e126ba97SEli Cohen MLX5_IB_LINK_TYPE_IB = 0, 51e126ba97SEli Cohen MLX5_IB_LINK_TYPE_ETH = 1 52e126ba97SEli Cohen }; 53e126ba97SEli Cohen 54e126ba97SEli Cohen enum { 55e126ba97SEli Cohen MLX5_IB_SQ_STRIDE = 6, 56e126ba97SEli Cohen MLX5_IB_CACHE_LINE_SIZE = 64, 57e126ba97SEli Cohen }; 58e126ba97SEli Cohen 59e126ba97SEli Cohen static const u32 mlx5_ib_opcode[] = { 60e126ba97SEli Cohen [IB_WR_SEND] = MLX5_OPCODE_SEND, 61e126ba97SEli Cohen [IB_WR_SEND_WITH_IMM] = MLX5_OPCODE_SEND_IMM, 62e126ba97SEli Cohen [IB_WR_RDMA_WRITE] = MLX5_OPCODE_RDMA_WRITE, 63e126ba97SEli Cohen [IB_WR_RDMA_WRITE_WITH_IMM] = MLX5_OPCODE_RDMA_WRITE_IMM, 64e126ba97SEli Cohen [IB_WR_RDMA_READ] = MLX5_OPCODE_RDMA_READ, 65e126ba97SEli Cohen [IB_WR_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_CS, 66e126ba97SEli Cohen [IB_WR_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_FA, 67e126ba97SEli Cohen [IB_WR_SEND_WITH_INV] = MLX5_OPCODE_SEND_INVAL, 68e126ba97SEli Cohen [IB_WR_LOCAL_INV] = MLX5_OPCODE_UMR, 698a187ee5SSagi Grimberg [IB_WR_REG_MR] = MLX5_OPCODE_UMR, 70e126ba97SEli Cohen [IB_WR_MASKED_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_MASKED_CS, 71e126ba97SEli Cohen [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_MASKED_FA, 72e126ba97SEli Cohen [MLX5_IB_WR_UMR] = MLX5_OPCODE_UMR, 73e126ba97SEli Cohen }; 74e126ba97SEli Cohen 75e126ba97SEli Cohen 76e126ba97SEli Cohen static int is_qp0(enum ib_qp_type qp_type) 77e126ba97SEli Cohen { 78e126ba97SEli Cohen return qp_type == IB_QPT_SMI; 79e126ba97SEli Cohen } 80e126ba97SEli Cohen 81e126ba97SEli Cohen static int is_sqp(enum ib_qp_type qp_type) 82e126ba97SEli Cohen { 83e126ba97SEli Cohen return is_qp0(qp_type) || is_qp1(qp_type); 84e126ba97SEli Cohen } 85e126ba97SEli Cohen 86e126ba97SEli Cohen static void *get_wqe(struct mlx5_ib_qp *qp, int offset) 87e126ba97SEli Cohen { 88e126ba97SEli Cohen return mlx5_buf_offset(&qp->buf, offset); 89e126ba97SEli Cohen } 90e126ba97SEli Cohen 91e126ba97SEli Cohen static void *get_recv_wqe(struct mlx5_ib_qp *qp, int n) 92e126ba97SEli Cohen { 93e126ba97SEli Cohen return get_wqe(qp, qp->rq.offset + (n << qp->rq.wqe_shift)); 94e126ba97SEli Cohen } 95e126ba97SEli Cohen 96e126ba97SEli Cohen void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n) 97e126ba97SEli Cohen { 98e126ba97SEli Cohen return get_wqe(qp, qp->sq.offset + (n << MLX5_IB_SQ_STRIDE)); 99e126ba97SEli Cohen } 100e126ba97SEli Cohen 101c1395a2aSHaggai Eran /** 102c1395a2aSHaggai Eran * mlx5_ib_read_user_wqe() - Copy a user-space WQE to kernel space. 103c1395a2aSHaggai Eran * 104c1395a2aSHaggai Eran * @qp: QP to copy from. 105c1395a2aSHaggai Eran * @send: copy from the send queue when non-zero, use the receive queue 106c1395a2aSHaggai Eran * otherwise. 107c1395a2aSHaggai Eran * @wqe_index: index to start copying from. For send work queues, the 108c1395a2aSHaggai Eran * wqe_index is in units of MLX5_SEND_WQE_BB. 109c1395a2aSHaggai Eran * For receive work queue, it is the number of work queue 110c1395a2aSHaggai Eran * element in the queue. 111c1395a2aSHaggai Eran * @buffer: destination buffer. 112c1395a2aSHaggai Eran * @length: maximum number of bytes to copy. 113c1395a2aSHaggai Eran * 114c1395a2aSHaggai Eran * Copies at least a single WQE, but may copy more data. 115c1395a2aSHaggai Eran * 116c1395a2aSHaggai Eran * Return: the number of bytes copied, or an error code. 117c1395a2aSHaggai Eran */ 118c1395a2aSHaggai Eran int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index, 119c1395a2aSHaggai Eran void *buffer, u32 length) 120c1395a2aSHaggai Eran { 121c1395a2aSHaggai Eran struct ib_device *ibdev = qp->ibqp.device; 122c1395a2aSHaggai Eran struct mlx5_ib_dev *dev = to_mdev(ibdev); 123c1395a2aSHaggai Eran struct mlx5_ib_wq *wq = send ? &qp->sq : &qp->rq; 124c1395a2aSHaggai Eran size_t offset; 125c1395a2aSHaggai Eran size_t wq_end; 126c1395a2aSHaggai Eran struct ib_umem *umem = qp->umem; 127c1395a2aSHaggai Eran u32 first_copy_length; 128c1395a2aSHaggai Eran int wqe_length; 129c1395a2aSHaggai Eran int ret; 130c1395a2aSHaggai Eran 131c1395a2aSHaggai Eran if (wq->wqe_cnt == 0) { 132c1395a2aSHaggai Eran mlx5_ib_dbg(dev, "mlx5_ib_read_user_wqe for a QP with wqe_cnt == 0. qp_type: 0x%x\n", 133c1395a2aSHaggai Eran qp->ibqp.qp_type); 134c1395a2aSHaggai Eran return -EINVAL; 135c1395a2aSHaggai Eran } 136c1395a2aSHaggai Eran 137c1395a2aSHaggai Eran offset = wq->offset + ((wqe_index % wq->wqe_cnt) << wq->wqe_shift); 138c1395a2aSHaggai Eran wq_end = wq->offset + (wq->wqe_cnt << wq->wqe_shift); 139c1395a2aSHaggai Eran 140c1395a2aSHaggai Eran if (send && length < sizeof(struct mlx5_wqe_ctrl_seg)) 141c1395a2aSHaggai Eran return -EINVAL; 142c1395a2aSHaggai Eran 143c1395a2aSHaggai Eran if (offset > umem->length || 144c1395a2aSHaggai Eran (send && offset + sizeof(struct mlx5_wqe_ctrl_seg) > umem->length)) 145c1395a2aSHaggai Eran return -EINVAL; 146c1395a2aSHaggai Eran 147c1395a2aSHaggai Eran first_copy_length = min_t(u32, offset + length, wq_end) - offset; 148c1395a2aSHaggai Eran ret = ib_umem_copy_from(buffer, umem, offset, first_copy_length); 149c1395a2aSHaggai Eran if (ret) 150c1395a2aSHaggai Eran return ret; 151c1395a2aSHaggai Eran 152c1395a2aSHaggai Eran if (send) { 153c1395a2aSHaggai Eran struct mlx5_wqe_ctrl_seg *ctrl = buffer; 154c1395a2aSHaggai Eran int ds = be32_to_cpu(ctrl->qpn_ds) & MLX5_WQE_CTRL_DS_MASK; 155c1395a2aSHaggai Eran 156c1395a2aSHaggai Eran wqe_length = ds * MLX5_WQE_DS_UNITS; 157c1395a2aSHaggai Eran } else { 158c1395a2aSHaggai Eran wqe_length = 1 << wq->wqe_shift; 159c1395a2aSHaggai Eran } 160c1395a2aSHaggai Eran 161c1395a2aSHaggai Eran if (wqe_length <= first_copy_length) 162c1395a2aSHaggai Eran return first_copy_length; 163c1395a2aSHaggai Eran 164c1395a2aSHaggai Eran ret = ib_umem_copy_from(buffer + first_copy_length, umem, wq->offset, 165c1395a2aSHaggai Eran wqe_length - first_copy_length); 166c1395a2aSHaggai Eran if (ret) 167c1395a2aSHaggai Eran return ret; 168c1395a2aSHaggai Eran 169c1395a2aSHaggai Eran return wqe_length; 170c1395a2aSHaggai Eran } 171c1395a2aSHaggai Eran 172e126ba97SEli Cohen static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type) 173e126ba97SEli Cohen { 174e126ba97SEli Cohen struct ib_qp *ibqp = &to_mibqp(qp)->ibqp; 175e126ba97SEli Cohen struct ib_event event; 176e126ba97SEli Cohen 177e126ba97SEli Cohen if (type == MLX5_EVENT_TYPE_PATH_MIG) 178e126ba97SEli Cohen to_mibqp(qp)->port = to_mibqp(qp)->alt_port; 179e126ba97SEli Cohen 180e126ba97SEli Cohen if (ibqp->event_handler) { 181e126ba97SEli Cohen event.device = ibqp->device; 182e126ba97SEli Cohen event.element.qp = ibqp; 183e126ba97SEli Cohen switch (type) { 184e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG: 185e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG; 186e126ba97SEli Cohen break; 187e126ba97SEli Cohen case MLX5_EVENT_TYPE_COMM_EST: 188e126ba97SEli Cohen event.event = IB_EVENT_COMM_EST; 189e126ba97SEli Cohen break; 190e126ba97SEli Cohen case MLX5_EVENT_TYPE_SQ_DRAINED: 191e126ba97SEli Cohen event.event = IB_EVENT_SQ_DRAINED; 192e126ba97SEli Cohen break; 193e126ba97SEli Cohen case MLX5_EVENT_TYPE_SRQ_LAST_WQE: 194e126ba97SEli Cohen event.event = IB_EVENT_QP_LAST_WQE_REACHED; 195e126ba97SEli Cohen break; 196e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: 197e126ba97SEli Cohen event.event = IB_EVENT_QP_FATAL; 198e126ba97SEli Cohen break; 199e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG_FAILED: 200e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG_ERR; 201e126ba97SEli Cohen break; 202e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: 203e126ba97SEli Cohen event.event = IB_EVENT_QP_REQ_ERR; 204e126ba97SEli Cohen break; 205e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: 206e126ba97SEli Cohen event.event = IB_EVENT_QP_ACCESS_ERR; 207e126ba97SEli Cohen break; 208e126ba97SEli Cohen default: 209e126ba97SEli Cohen pr_warn("mlx5_ib: Unexpected event type %d on QP %06x\n", type, qp->qpn); 210e126ba97SEli Cohen return; 211e126ba97SEli Cohen } 212e126ba97SEli Cohen 213e126ba97SEli Cohen ibqp->event_handler(&event, ibqp->qp_context); 214e126ba97SEli Cohen } 215e126ba97SEli Cohen } 216e126ba97SEli Cohen 217e126ba97SEli Cohen static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap, 218e126ba97SEli Cohen int has_rq, struct mlx5_ib_qp *qp, struct mlx5_ib_create_qp *ucmd) 219e126ba97SEli Cohen { 220e126ba97SEli Cohen int wqe_size; 221e126ba97SEli Cohen int wq_size; 222e126ba97SEli Cohen 223e126ba97SEli Cohen /* Sanity check RQ size before proceeding */ 224938fe83cSSaeed Mahameed if (cap->max_recv_wr > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) 225e126ba97SEli Cohen return -EINVAL; 226e126ba97SEli Cohen 227e126ba97SEli Cohen if (!has_rq) { 228e126ba97SEli Cohen qp->rq.max_gs = 0; 229e126ba97SEli Cohen qp->rq.wqe_cnt = 0; 230e126ba97SEli Cohen qp->rq.wqe_shift = 0; 231e126ba97SEli Cohen } else { 232e126ba97SEli Cohen if (ucmd) { 233e126ba97SEli Cohen qp->rq.wqe_cnt = ucmd->rq_wqe_count; 234e126ba97SEli Cohen qp->rq.wqe_shift = ucmd->rq_wqe_shift; 235e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 236e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 237e126ba97SEli Cohen } else { 238e126ba97SEli Cohen wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0; 239e126ba97SEli Cohen wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg); 240e126ba97SEli Cohen wqe_size = roundup_pow_of_two(wqe_size); 241e126ba97SEli Cohen wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size; 242e126ba97SEli Cohen wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB); 243e126ba97SEli Cohen qp->rq.wqe_cnt = wq_size / wqe_size; 244938fe83cSSaeed Mahameed if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq)) { 245e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d, max %d\n", 246e126ba97SEli Cohen wqe_size, 247938fe83cSSaeed Mahameed MLX5_CAP_GEN(dev->mdev, 248938fe83cSSaeed Mahameed max_wqe_sz_rq)); 249e126ba97SEli Cohen return -EINVAL; 250e126ba97SEli Cohen } 251e126ba97SEli Cohen qp->rq.wqe_shift = ilog2(wqe_size); 252e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 253e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 254e126ba97SEli Cohen } 255e126ba97SEli Cohen } 256e126ba97SEli Cohen 257e126ba97SEli Cohen return 0; 258e126ba97SEli Cohen } 259e126ba97SEli Cohen 260e126ba97SEli Cohen static int sq_overhead(enum ib_qp_type qp_type) 261e126ba97SEli Cohen { 262618af384SAndi Shyti int size = 0; 263e126ba97SEli Cohen 264e126ba97SEli Cohen switch (qp_type) { 265e126ba97SEli Cohen case IB_QPT_XRC_INI: 266b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_xrc_seg); 267e126ba97SEli Cohen /* fall through */ 268e126ba97SEli Cohen case IB_QPT_RC: 269e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 270e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg) + 271e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 272e126ba97SEli Cohen break; 273e126ba97SEli Cohen 274b125a54bSEli Cohen case IB_QPT_XRC_TGT: 275b125a54bSEli Cohen return 0; 276b125a54bSEli Cohen 277e126ba97SEli Cohen case IB_QPT_UC: 278b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 2799e65dc37SEli Cohen sizeof(struct mlx5_wqe_raddr_seg) + 2809e65dc37SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 2819e65dc37SEli Cohen sizeof(struct mlx5_mkey_seg); 282e126ba97SEli Cohen break; 283e126ba97SEli Cohen 284e126ba97SEli Cohen case IB_QPT_UD: 285e126ba97SEli Cohen case IB_QPT_SMI: 286e126ba97SEli Cohen case IB_QPT_GSI: 287b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 288e126ba97SEli Cohen sizeof(struct mlx5_wqe_datagram_seg); 289e126ba97SEli Cohen break; 290e126ba97SEli Cohen 291e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 292b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 293e126ba97SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 294e126ba97SEli Cohen sizeof(struct mlx5_mkey_seg); 295e126ba97SEli Cohen break; 296e126ba97SEli Cohen 297e126ba97SEli Cohen default: 298e126ba97SEli Cohen return -EINVAL; 299e126ba97SEli Cohen } 300e126ba97SEli Cohen 301e126ba97SEli Cohen return size; 302e126ba97SEli Cohen } 303e126ba97SEli Cohen 304e126ba97SEli Cohen static int calc_send_wqe(struct ib_qp_init_attr *attr) 305e126ba97SEli Cohen { 306e126ba97SEli Cohen int inl_size = 0; 307e126ba97SEli Cohen int size; 308e126ba97SEli Cohen 309e126ba97SEli Cohen size = sq_overhead(attr->qp_type); 310e126ba97SEli Cohen if (size < 0) 311e126ba97SEli Cohen return size; 312e126ba97SEli Cohen 313e126ba97SEli Cohen if (attr->cap.max_inline_data) { 314e126ba97SEli Cohen inl_size = size + sizeof(struct mlx5_wqe_inline_seg) + 315e126ba97SEli Cohen attr->cap.max_inline_data; 316e126ba97SEli Cohen } 317e126ba97SEli Cohen 318e126ba97SEli Cohen size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg); 319e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN && 320e1e66cc2SSagi Grimberg ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE) 321e1e66cc2SSagi Grimberg return MLX5_SIG_WQE_SIZE; 322e1e66cc2SSagi Grimberg else 323e126ba97SEli Cohen return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB); 324e126ba97SEli Cohen } 325e126ba97SEli Cohen 326e126ba97SEli Cohen static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 327e126ba97SEli Cohen struct mlx5_ib_qp *qp) 328e126ba97SEli Cohen { 329e126ba97SEli Cohen int wqe_size; 330e126ba97SEli Cohen int wq_size; 331e126ba97SEli Cohen 332e126ba97SEli Cohen if (!attr->cap.max_send_wr) 333e126ba97SEli Cohen return 0; 334e126ba97SEli Cohen 335e126ba97SEli Cohen wqe_size = calc_send_wqe(attr); 336e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size); 337e126ba97SEli Cohen if (wqe_size < 0) 338e126ba97SEli Cohen return wqe_size; 339e126ba97SEli Cohen 340938fe83cSSaeed Mahameed if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) { 341b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", 342938fe83cSSaeed Mahameed wqe_size, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)); 343e126ba97SEli Cohen return -EINVAL; 344e126ba97SEli Cohen } 345e126ba97SEli Cohen 346e126ba97SEli Cohen qp->max_inline_data = wqe_size - sq_overhead(attr->qp_type) - 347e126ba97SEli Cohen sizeof(struct mlx5_wqe_inline_seg); 348e126ba97SEli Cohen attr->cap.max_inline_data = qp->max_inline_data; 349e126ba97SEli Cohen 350e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) 351e1e66cc2SSagi Grimberg qp->signature_en = true; 352e1e66cc2SSagi Grimberg 353e126ba97SEli Cohen wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); 354e126ba97SEli Cohen qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; 355938fe83cSSaeed Mahameed if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) { 356b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", 357938fe83cSSaeed Mahameed qp->sq.wqe_cnt, 358938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)); 359b125a54bSEli Cohen return -ENOMEM; 360b125a54bSEli Cohen } 361e126ba97SEli Cohen qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 362e126ba97SEli Cohen qp->sq.max_gs = attr->cap.max_send_sge; 363b125a54bSEli Cohen qp->sq.max_post = wq_size / wqe_size; 364b125a54bSEli Cohen attr->cap.max_send_wr = qp->sq.max_post; 365e126ba97SEli Cohen 366e126ba97SEli Cohen return wq_size; 367e126ba97SEli Cohen } 368e126ba97SEli Cohen 369e126ba97SEli Cohen static int set_user_buf_size(struct mlx5_ib_dev *dev, 370e126ba97SEli Cohen struct mlx5_ib_qp *qp, 371e126ba97SEli Cohen struct mlx5_ib_create_qp *ucmd) 372e126ba97SEli Cohen { 373e126ba97SEli Cohen int desc_sz = 1 << qp->sq.wqe_shift; 374e126ba97SEli Cohen 375938fe83cSSaeed Mahameed if (desc_sz > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) { 376e126ba97SEli Cohen mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n", 377938fe83cSSaeed Mahameed desc_sz, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)); 378e126ba97SEli Cohen return -EINVAL; 379e126ba97SEli Cohen } 380e126ba97SEli Cohen 381e126ba97SEli Cohen if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) { 382e126ba97SEli Cohen mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n", 383e126ba97SEli Cohen ucmd->sq_wqe_count, ucmd->sq_wqe_count); 384e126ba97SEli Cohen return -EINVAL; 385e126ba97SEli Cohen } 386e126ba97SEli Cohen 387e126ba97SEli Cohen qp->sq.wqe_cnt = ucmd->sq_wqe_count; 388e126ba97SEli Cohen 389938fe83cSSaeed Mahameed if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) { 390e126ba97SEli Cohen mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n", 391938fe83cSSaeed Mahameed qp->sq.wqe_cnt, 392938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)); 393e126ba97SEli Cohen return -EINVAL; 394e126ba97SEli Cohen } 395e126ba97SEli Cohen 396e126ba97SEli Cohen qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) + 397e126ba97SEli Cohen (qp->sq.wqe_cnt << 6); 398e126ba97SEli Cohen 399e126ba97SEli Cohen return 0; 400e126ba97SEli Cohen } 401e126ba97SEli Cohen 402e126ba97SEli Cohen static int qp_has_rq(struct ib_qp_init_attr *attr) 403e126ba97SEli Cohen { 404e126ba97SEli Cohen if (attr->qp_type == IB_QPT_XRC_INI || 405e126ba97SEli Cohen attr->qp_type == IB_QPT_XRC_TGT || attr->srq || 406e126ba97SEli Cohen attr->qp_type == MLX5_IB_QPT_REG_UMR || 407e126ba97SEli Cohen !attr->cap.max_recv_wr) 408e126ba97SEli Cohen return 0; 409e126ba97SEli Cohen 410e126ba97SEli Cohen return 1; 411e126ba97SEli Cohen } 412e126ba97SEli Cohen 413c1be5232SEli Cohen static int first_med_uuar(void) 414c1be5232SEli Cohen { 415c1be5232SEli Cohen return 1; 416c1be5232SEli Cohen } 417c1be5232SEli Cohen 418c1be5232SEli Cohen static int next_uuar(int n) 419c1be5232SEli Cohen { 420c1be5232SEli Cohen n++; 421c1be5232SEli Cohen 422c1be5232SEli Cohen while (((n % 4) & 2)) 423c1be5232SEli Cohen n++; 424c1be5232SEli Cohen 425c1be5232SEli Cohen return n; 426c1be5232SEli Cohen } 427c1be5232SEli Cohen 428c1be5232SEli Cohen static int num_med_uuar(struct mlx5_uuar_info *uuari) 429c1be5232SEli Cohen { 430c1be5232SEli Cohen int n; 431c1be5232SEli Cohen 432c1be5232SEli Cohen n = uuari->num_uars * MLX5_NON_FP_BF_REGS_PER_PAGE - 433c1be5232SEli Cohen uuari->num_low_latency_uuars - 1; 434c1be5232SEli Cohen 435c1be5232SEli Cohen return n >= 0 ? n : 0; 436c1be5232SEli Cohen } 437c1be5232SEli Cohen 438c1be5232SEli Cohen static int max_uuari(struct mlx5_uuar_info *uuari) 439c1be5232SEli Cohen { 440c1be5232SEli Cohen return uuari->num_uars * 4; 441c1be5232SEli Cohen } 442c1be5232SEli Cohen 443c1be5232SEli Cohen static int first_hi_uuar(struct mlx5_uuar_info *uuari) 444c1be5232SEli Cohen { 445c1be5232SEli Cohen int med; 446c1be5232SEli Cohen int i; 447c1be5232SEli Cohen int t; 448c1be5232SEli Cohen 449c1be5232SEli Cohen med = num_med_uuar(uuari); 450c1be5232SEli Cohen for (t = 0, i = first_med_uuar();; i = next_uuar(i)) { 451c1be5232SEli Cohen t++; 452c1be5232SEli Cohen if (t == med) 453c1be5232SEli Cohen return next_uuar(i); 454c1be5232SEli Cohen } 455c1be5232SEli Cohen 456c1be5232SEli Cohen return 0; 457c1be5232SEli Cohen } 458c1be5232SEli Cohen 459e126ba97SEli Cohen static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari) 460e126ba97SEli Cohen { 461e126ba97SEli Cohen int i; 462e126ba97SEli Cohen 463c1be5232SEli Cohen for (i = first_hi_uuar(uuari); i < max_uuari(uuari); i = next_uuar(i)) { 464e126ba97SEli Cohen if (!test_bit(i, uuari->bitmap)) { 465e126ba97SEli Cohen set_bit(i, uuari->bitmap); 466e126ba97SEli Cohen uuari->count[i]++; 467e126ba97SEli Cohen return i; 468e126ba97SEli Cohen } 469e126ba97SEli Cohen } 470e126ba97SEli Cohen 471e126ba97SEli Cohen return -ENOMEM; 472e126ba97SEli Cohen } 473e126ba97SEli Cohen 474e126ba97SEli Cohen static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari) 475e126ba97SEli Cohen { 476c1be5232SEli Cohen int minidx = first_med_uuar(); 477e126ba97SEli Cohen int i; 478e126ba97SEli Cohen 479c1be5232SEli Cohen for (i = first_med_uuar(); i < first_hi_uuar(uuari); i = next_uuar(i)) { 480e126ba97SEli Cohen if (uuari->count[i] < uuari->count[minidx]) 481e126ba97SEli Cohen minidx = i; 482e126ba97SEli Cohen } 483e126ba97SEli Cohen 484e126ba97SEli Cohen uuari->count[minidx]++; 485e126ba97SEli Cohen return minidx; 486e126ba97SEli Cohen } 487e126ba97SEli Cohen 488e126ba97SEli Cohen static int alloc_uuar(struct mlx5_uuar_info *uuari, 489e126ba97SEli Cohen enum mlx5_ib_latency_class lat) 490e126ba97SEli Cohen { 491e126ba97SEli Cohen int uuarn = -EINVAL; 492e126ba97SEli Cohen 493e126ba97SEli Cohen mutex_lock(&uuari->lock); 494e126ba97SEli Cohen switch (lat) { 495e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_LOW: 496e126ba97SEli Cohen uuarn = 0; 497e126ba97SEli Cohen uuari->count[uuarn]++; 498e126ba97SEli Cohen break; 499e126ba97SEli Cohen 500e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_MEDIUM: 50178c0f98cSEli Cohen if (uuari->ver < 2) 50278c0f98cSEli Cohen uuarn = -ENOMEM; 50378c0f98cSEli Cohen else 504e126ba97SEli Cohen uuarn = alloc_med_class_uuar(uuari); 505e126ba97SEli Cohen break; 506e126ba97SEli Cohen 507e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_HIGH: 50878c0f98cSEli Cohen if (uuari->ver < 2) 50978c0f98cSEli Cohen uuarn = -ENOMEM; 51078c0f98cSEli Cohen else 511e126ba97SEli Cohen uuarn = alloc_high_class_uuar(uuari); 512e126ba97SEli Cohen break; 513e126ba97SEli Cohen 514e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_FAST_PATH: 515e126ba97SEli Cohen uuarn = 2; 516e126ba97SEli Cohen break; 517e126ba97SEli Cohen } 518e126ba97SEli Cohen mutex_unlock(&uuari->lock); 519e126ba97SEli Cohen 520e126ba97SEli Cohen return uuarn; 521e126ba97SEli Cohen } 522e126ba97SEli Cohen 523e126ba97SEli Cohen static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 524e126ba97SEli Cohen { 525e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 526e126ba97SEli Cohen --uuari->count[uuarn]; 527e126ba97SEli Cohen } 528e126ba97SEli Cohen 529e126ba97SEli Cohen static void free_high_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 530e126ba97SEli Cohen { 531e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 532e126ba97SEli Cohen --uuari->count[uuarn]; 533e126ba97SEli Cohen } 534e126ba97SEli Cohen 535e126ba97SEli Cohen static void free_uuar(struct mlx5_uuar_info *uuari, int uuarn) 536e126ba97SEli Cohen { 537e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 538e126ba97SEli Cohen int high_uuar = nuuars - uuari->num_low_latency_uuars; 539e126ba97SEli Cohen 540e126ba97SEli Cohen mutex_lock(&uuari->lock); 541e126ba97SEli Cohen if (uuarn == 0) { 542e126ba97SEli Cohen --uuari->count[uuarn]; 543e126ba97SEli Cohen goto out; 544e126ba97SEli Cohen } 545e126ba97SEli Cohen 546e126ba97SEli Cohen if (uuarn < high_uuar) { 547e126ba97SEli Cohen free_med_class_uuar(uuari, uuarn); 548e126ba97SEli Cohen goto out; 549e126ba97SEli Cohen } 550e126ba97SEli Cohen 551e126ba97SEli Cohen free_high_class_uuar(uuari, uuarn); 552e126ba97SEli Cohen 553e126ba97SEli Cohen out: 554e126ba97SEli Cohen mutex_unlock(&uuari->lock); 555e126ba97SEli Cohen } 556e126ba97SEli Cohen 557e126ba97SEli Cohen static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state) 558e126ba97SEli Cohen { 559e126ba97SEli Cohen switch (state) { 560e126ba97SEli Cohen case IB_QPS_RESET: return MLX5_QP_STATE_RST; 561e126ba97SEli Cohen case IB_QPS_INIT: return MLX5_QP_STATE_INIT; 562e126ba97SEli Cohen case IB_QPS_RTR: return MLX5_QP_STATE_RTR; 563e126ba97SEli Cohen case IB_QPS_RTS: return MLX5_QP_STATE_RTS; 564e126ba97SEli Cohen case IB_QPS_SQD: return MLX5_QP_STATE_SQD; 565e126ba97SEli Cohen case IB_QPS_SQE: return MLX5_QP_STATE_SQER; 566e126ba97SEli Cohen case IB_QPS_ERR: return MLX5_QP_STATE_ERR; 567e126ba97SEli Cohen default: return -1; 568e126ba97SEli Cohen } 569e126ba97SEli Cohen } 570e126ba97SEli Cohen 571e126ba97SEli Cohen static int to_mlx5_st(enum ib_qp_type type) 572e126ba97SEli Cohen { 573e126ba97SEli Cohen switch (type) { 574e126ba97SEli Cohen case IB_QPT_RC: return MLX5_QP_ST_RC; 575e126ba97SEli Cohen case IB_QPT_UC: return MLX5_QP_ST_UC; 576e126ba97SEli Cohen case IB_QPT_UD: return MLX5_QP_ST_UD; 577e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR; 578e126ba97SEli Cohen case IB_QPT_XRC_INI: 579e126ba97SEli Cohen case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC; 580e126ba97SEli Cohen case IB_QPT_SMI: return MLX5_QP_ST_QP0; 581e126ba97SEli Cohen case IB_QPT_GSI: return MLX5_QP_ST_QP1; 582e126ba97SEli Cohen case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6; 583e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE; 584e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 585e126ba97SEli Cohen case IB_QPT_MAX: 586e126ba97SEli Cohen default: return -EINVAL; 587e126ba97SEli Cohen } 588e126ba97SEli Cohen } 589e126ba97SEli Cohen 590e126ba97SEli Cohen static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn) 591e126ba97SEli Cohen { 592e126ba97SEli Cohen return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index; 593e126ba97SEli Cohen } 594e126ba97SEli Cohen 595e126ba97SEli Cohen static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, 596e126ba97SEli Cohen struct mlx5_ib_qp *qp, struct ib_udata *udata, 597e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, 598e126ba97SEli Cohen struct mlx5_ib_create_qp_resp *resp, int *inlen) 599e126ba97SEli Cohen { 600e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 601e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 6029e9c47d0SEli Cohen int page_shift = 0; 603e126ba97SEli Cohen int uar_index; 604e126ba97SEli Cohen int npages; 6059e9c47d0SEli Cohen u32 offset = 0; 606e126ba97SEli Cohen int uuarn; 6079e9c47d0SEli Cohen int ncont = 0; 608e126ba97SEli Cohen int err; 609e126ba97SEli Cohen 610e126ba97SEli Cohen err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 611e126ba97SEli Cohen if (err) { 612e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 613e126ba97SEli Cohen return err; 614e126ba97SEli Cohen } 615e126ba97SEli Cohen 616e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 617e126ba97SEli Cohen /* 618e126ba97SEli Cohen * TBD: should come from the verbs when we have the API 619e126ba97SEli Cohen */ 620051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL) 621051f2630SLeon Romanovsky /* In CROSS_CHANNEL CQ and QP must use the same UAR */ 622051f2630SLeon Romanovsky uuarn = MLX5_CROSS_CHANNEL_UUAR; 623051f2630SLeon Romanovsky else { 624e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH); 625e126ba97SEli Cohen if (uuarn < 0) { 626e126ba97SEli Cohen mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n"); 627c1be5232SEli Cohen mlx5_ib_dbg(dev, "reverting to medium latency\n"); 628c1be5232SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_MEDIUM); 629c1be5232SEli Cohen if (uuarn < 0) { 630c1be5232SEli Cohen mlx5_ib_dbg(dev, "failed to allocate medium latency UUAR\n"); 631e126ba97SEli Cohen mlx5_ib_dbg(dev, "reverting to high latency\n"); 632e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW); 633e126ba97SEli Cohen if (uuarn < 0) { 634c1be5232SEli Cohen mlx5_ib_warn(dev, "uuar allocation failed\n"); 635e126ba97SEli Cohen return uuarn; 636e126ba97SEli Cohen } 637e126ba97SEli Cohen } 638c1be5232SEli Cohen } 639051f2630SLeon Romanovsky } 640e126ba97SEli Cohen 641e126ba97SEli Cohen uar_index = uuarn_to_uar_index(&context->uuari, uuarn); 642e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index); 643e126ba97SEli Cohen 64448fea837SHaggai Eran qp->rq.offset = 0; 64548fea837SHaggai Eran qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 64648fea837SHaggai Eran qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 64748fea837SHaggai Eran 648e126ba97SEli Cohen err = set_user_buf_size(dev, qp, &ucmd); 649e126ba97SEli Cohen if (err) 650e126ba97SEli Cohen goto err_uuar; 651e126ba97SEli Cohen 6529e9c47d0SEli Cohen if (ucmd.buf_addr && qp->buf_size) { 653e126ba97SEli Cohen qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, 654e126ba97SEli Cohen qp->buf_size, 0, 0); 655e126ba97SEli Cohen if (IS_ERR(qp->umem)) { 656e126ba97SEli Cohen mlx5_ib_dbg(dev, "umem_get failed\n"); 657e126ba97SEli Cohen err = PTR_ERR(qp->umem); 658e126ba97SEli Cohen goto err_uuar; 659e126ba97SEli Cohen } 6609e9c47d0SEli Cohen } else { 6619e9c47d0SEli Cohen qp->umem = NULL; 6629e9c47d0SEli Cohen } 663e126ba97SEli Cohen 6649e9c47d0SEli Cohen if (qp->umem) { 665e126ba97SEli Cohen mlx5_ib_cont_pages(qp->umem, ucmd.buf_addr, &npages, &page_shift, 666e126ba97SEli Cohen &ncont, NULL); 667e126ba97SEli Cohen err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift, &offset); 668e126ba97SEli Cohen if (err) { 669e126ba97SEli Cohen mlx5_ib_warn(dev, "bad offset\n"); 670e126ba97SEli Cohen goto err_umem; 671e126ba97SEli Cohen } 672e126ba97SEli Cohen mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n", 673e126ba97SEli Cohen ucmd.buf_addr, qp->buf_size, npages, page_shift, ncont, offset); 6749e9c47d0SEli Cohen } 675e126ba97SEli Cohen 676e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont; 677e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 678e126ba97SEli Cohen if (!*in) { 679e126ba97SEli Cohen err = -ENOMEM; 680e126ba97SEli Cohen goto err_umem; 681e126ba97SEli Cohen } 6829e9c47d0SEli Cohen if (qp->umem) 683e126ba97SEli Cohen mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); 684e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 6851b77d2bdSEli Cohen cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 686e126ba97SEli Cohen (*in)->ctx.params2 = cpu_to_be32(offset << 6); 687e126ba97SEli Cohen 688e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 689e126ba97SEli Cohen resp->uuar_index = uuarn; 690e126ba97SEli Cohen qp->uuarn = uuarn; 691e126ba97SEli Cohen 692e126ba97SEli Cohen err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db); 693e126ba97SEli Cohen if (err) { 694e126ba97SEli Cohen mlx5_ib_dbg(dev, "map failed\n"); 695e126ba97SEli Cohen goto err_free; 696e126ba97SEli Cohen } 697e126ba97SEli Cohen 698e126ba97SEli Cohen err = ib_copy_to_udata(udata, resp, sizeof(*resp)); 699e126ba97SEli Cohen if (err) { 700e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 701e126ba97SEli Cohen goto err_unmap; 702e126ba97SEli Cohen } 703e126ba97SEli Cohen qp->create_type = MLX5_QP_USER; 704e126ba97SEli Cohen 705e126ba97SEli Cohen return 0; 706e126ba97SEli Cohen 707e126ba97SEli Cohen err_unmap: 708e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 709e126ba97SEli Cohen 710e126ba97SEli Cohen err_free: 711479163f4SAl Viro kvfree(*in); 712e126ba97SEli Cohen 713e126ba97SEli Cohen err_umem: 7149e9c47d0SEli Cohen if (qp->umem) 715e126ba97SEli Cohen ib_umem_release(qp->umem); 716e126ba97SEli Cohen 717e126ba97SEli Cohen err_uuar: 718e126ba97SEli Cohen free_uuar(&context->uuari, uuarn); 719e126ba97SEli Cohen return err; 720e126ba97SEli Cohen } 721e126ba97SEli Cohen 722e126ba97SEli Cohen static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp) 723e126ba97SEli Cohen { 724e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 725e126ba97SEli Cohen 726e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 727e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 7289e9c47d0SEli Cohen if (qp->umem) 729e126ba97SEli Cohen ib_umem_release(qp->umem); 730e126ba97SEli Cohen free_uuar(&context->uuari, qp->uuarn); 731e126ba97SEli Cohen } 732e126ba97SEli Cohen 733e126ba97SEli Cohen static int create_kernel_qp(struct mlx5_ib_dev *dev, 734e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 735e126ba97SEli Cohen struct mlx5_ib_qp *qp, 736e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, int *inlen) 737e126ba97SEli Cohen { 738e126ba97SEli Cohen enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW; 739e126ba97SEli Cohen struct mlx5_uuar_info *uuari; 740e126ba97SEli Cohen int uar_index; 741e126ba97SEli Cohen int uuarn; 742e126ba97SEli Cohen int err; 743e126ba97SEli Cohen 7449603b61dSJack Morgenstein uuari = &dev->mdev->priv.uuari; 745652c1a05SOr Gerlitz if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)) 7461a4c3a3dSEli Cohen return -EINVAL; 747e126ba97SEli Cohen 748e126ba97SEli Cohen if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR) 749e126ba97SEli Cohen lc = MLX5_IB_LATENCY_CLASS_FAST_PATH; 750e126ba97SEli Cohen 751e126ba97SEli Cohen uuarn = alloc_uuar(uuari, lc); 752e126ba97SEli Cohen if (uuarn < 0) { 753e126ba97SEli Cohen mlx5_ib_dbg(dev, "\n"); 754e126ba97SEli Cohen return -ENOMEM; 755e126ba97SEli Cohen } 756e126ba97SEli Cohen 757e126ba97SEli Cohen qp->bf = &uuari->bfs[uuarn]; 758e126ba97SEli Cohen uar_index = qp->bf->uar->index; 759e126ba97SEli Cohen 760e126ba97SEli Cohen err = calc_sq_size(dev, init_attr, qp); 761e126ba97SEli Cohen if (err < 0) { 762e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 763e126ba97SEli Cohen goto err_uuar; 764e126ba97SEli Cohen } 765e126ba97SEli Cohen 766e126ba97SEli Cohen qp->rq.offset = 0; 767e126ba97SEli Cohen qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 768e126ba97SEli Cohen qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); 769e126ba97SEli Cohen 77064ffaa21SAmir Vadai err = mlx5_buf_alloc(dev->mdev, qp->buf_size, &qp->buf); 771e126ba97SEli Cohen if (err) { 772e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 773e126ba97SEli Cohen goto err_uuar; 774e126ba97SEli Cohen } 775e126ba97SEli Cohen 776e126ba97SEli Cohen qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt); 777e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * qp->buf.npages; 778e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 779e126ba97SEli Cohen if (!*in) { 780e126ba97SEli Cohen err = -ENOMEM; 781e126ba97SEli Cohen goto err_buf; 782e126ba97SEli Cohen } 783e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 7841b77d2bdSEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 7851b77d2bdSEli Cohen cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 786e126ba97SEli Cohen /* Set "fast registration enabled" for all kernel QPs */ 787e126ba97SEli Cohen (*in)->ctx.params1 |= cpu_to_be32(1 << 11); 788e126ba97SEli Cohen (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); 789e126ba97SEli Cohen 790e126ba97SEli Cohen mlx5_fill_page_array(&qp->buf, (*in)->pas); 791e126ba97SEli Cohen 7929603b61dSJack Morgenstein err = mlx5_db_alloc(dev->mdev, &qp->db); 793e126ba97SEli Cohen if (err) { 794e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 795e126ba97SEli Cohen goto err_free; 796e126ba97SEli Cohen } 797e126ba97SEli Cohen 798e126ba97SEli Cohen qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL); 799e126ba97SEli Cohen qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL); 800e126ba97SEli Cohen qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL); 801e126ba97SEli Cohen qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL); 802e126ba97SEli Cohen qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL); 803e126ba97SEli Cohen 804e126ba97SEli Cohen if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid || 805e126ba97SEli Cohen !qp->sq.w_list || !qp->sq.wqe_head) { 806e126ba97SEli Cohen err = -ENOMEM; 807e126ba97SEli Cohen goto err_wrid; 808e126ba97SEli Cohen } 809e126ba97SEli Cohen qp->create_type = MLX5_QP_KERNEL; 810e126ba97SEli Cohen 811e126ba97SEli Cohen return 0; 812e126ba97SEli Cohen 813e126ba97SEli Cohen err_wrid: 8149603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 815e126ba97SEli Cohen kfree(qp->sq.wqe_head); 816e126ba97SEli Cohen kfree(qp->sq.w_list); 817e126ba97SEli Cohen kfree(qp->sq.wrid); 818e126ba97SEli Cohen kfree(qp->sq.wr_data); 819e126ba97SEli Cohen kfree(qp->rq.wrid); 820e126ba97SEli Cohen 821e126ba97SEli Cohen err_free: 822479163f4SAl Viro kvfree(*in); 823e126ba97SEli Cohen 824e126ba97SEli Cohen err_buf: 8259603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 826e126ba97SEli Cohen 827e126ba97SEli Cohen err_uuar: 8289603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, uuarn); 829e126ba97SEli Cohen return err; 830e126ba97SEli Cohen } 831e126ba97SEli Cohen 832e126ba97SEli Cohen static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 833e126ba97SEli Cohen { 8349603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 835e126ba97SEli Cohen kfree(qp->sq.wqe_head); 836e126ba97SEli Cohen kfree(qp->sq.w_list); 837e126ba97SEli Cohen kfree(qp->sq.wrid); 838e126ba97SEli Cohen kfree(qp->sq.wr_data); 839e126ba97SEli Cohen kfree(qp->rq.wrid); 8409603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 8419603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, qp->bf->uuarn); 842e126ba97SEli Cohen } 843e126ba97SEli Cohen 844e126ba97SEli Cohen static __be32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr) 845e126ba97SEli Cohen { 846e126ba97SEli Cohen if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) || 847e126ba97SEli Cohen (attr->qp_type == IB_QPT_XRC_INI)) 848e126ba97SEli Cohen return cpu_to_be32(MLX5_SRQ_RQ); 849e126ba97SEli Cohen else if (!qp->has_rq) 850e126ba97SEli Cohen return cpu_to_be32(MLX5_ZERO_LEN_RQ); 851e126ba97SEli Cohen else 852e126ba97SEli Cohen return cpu_to_be32(MLX5_NON_ZERO_RQ); 853e126ba97SEli Cohen } 854e126ba97SEli Cohen 855e126ba97SEli Cohen static int is_connected(enum ib_qp_type qp_type) 856e126ba97SEli Cohen { 857e126ba97SEli Cohen if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC) 858e126ba97SEli Cohen return 1; 859e126ba97SEli Cohen 860e126ba97SEli Cohen return 0; 861e126ba97SEli Cohen } 862e126ba97SEli Cohen 863e126ba97SEli Cohen static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, 864e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 865e126ba97SEli Cohen struct ib_udata *udata, struct mlx5_ib_qp *qp) 866e126ba97SEli Cohen { 867e126ba97SEli Cohen struct mlx5_ib_resources *devr = &dev->devr; 868938fe83cSSaeed Mahameed struct mlx5_core_dev *mdev = dev->mdev; 869e126ba97SEli Cohen struct mlx5_ib_create_qp_resp resp; 870e126ba97SEli Cohen struct mlx5_create_qp_mbox_in *in; 871e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 872e126ba97SEli Cohen int inlen = sizeof(*in); 873e126ba97SEli Cohen int err; 874cfb5e088SHaggai Abramovsky u32 uidx = MLX5_IB_DEFAULT_UIDX; 875cfb5e088SHaggai Abramovsky void *qpc; 876e126ba97SEli Cohen 8776aec21f6SHaggai Eran mlx5_ib_odp_create_qp(qp); 8786aec21f6SHaggai Eran 879e126ba97SEli Cohen mutex_init(&qp->mutex); 880e126ba97SEli Cohen spin_lock_init(&qp->sq.lock); 881e126ba97SEli Cohen spin_lock_init(&qp->rq.lock); 882e126ba97SEli Cohen 883f360d88aSEli Cohen if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) { 884938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(mdev, block_lb_mc)) { 885f360d88aSEli Cohen mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n"); 886f360d88aSEli Cohen return -EINVAL; 887f360d88aSEli Cohen } else { 888f360d88aSEli Cohen qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK; 889f360d88aSEli Cohen } 890f360d88aSEli Cohen } 891f360d88aSEli Cohen 892051f2630SLeon Romanovsky if (init_attr->create_flags & 893051f2630SLeon Romanovsky (IB_QP_CREATE_CROSS_CHANNEL | 894051f2630SLeon Romanovsky IB_QP_CREATE_MANAGED_SEND | 895051f2630SLeon Romanovsky IB_QP_CREATE_MANAGED_RECV)) { 896051f2630SLeon Romanovsky if (!MLX5_CAP_GEN(mdev, cd)) { 897051f2630SLeon Romanovsky mlx5_ib_dbg(dev, "cross-channel isn't supported\n"); 898051f2630SLeon Romanovsky return -EINVAL; 899051f2630SLeon Romanovsky } 900051f2630SLeon Romanovsky if (init_attr->create_flags & IB_QP_CREATE_CROSS_CHANNEL) 901051f2630SLeon Romanovsky qp->flags |= MLX5_IB_QP_CROSS_CHANNEL; 902051f2630SLeon Romanovsky if (init_attr->create_flags & IB_QP_CREATE_MANAGED_SEND) 903051f2630SLeon Romanovsky qp->flags |= MLX5_IB_QP_MANAGED_SEND; 904051f2630SLeon Romanovsky if (init_attr->create_flags & IB_QP_CREATE_MANAGED_RECV) 905051f2630SLeon Romanovsky qp->flags |= MLX5_IB_QP_MANAGED_RECV; 906051f2630SLeon Romanovsky } 907e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) 908e126ba97SEli Cohen qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE; 909e126ba97SEli Cohen 910e126ba97SEli Cohen if (pd && pd->uobject) { 911e126ba97SEli Cohen if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { 912e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 913e126ba97SEli Cohen return -EFAULT; 914e126ba97SEli Cohen } 915e126ba97SEli Cohen 916cfb5e088SHaggai Abramovsky err = get_qp_user_index(to_mucontext(pd->uobject->context), 917cfb5e088SHaggai Abramovsky &ucmd, udata->inlen, &uidx); 918cfb5e088SHaggai Abramovsky if (err) 919cfb5e088SHaggai Abramovsky return err; 920cfb5e088SHaggai Abramovsky 921e126ba97SEli Cohen qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); 922e126ba97SEli Cohen qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); 923e126ba97SEli Cohen } else { 924e126ba97SEli Cohen qp->wq_sig = !!wq_signature; 925e126ba97SEli Cohen } 926e126ba97SEli Cohen 927e126ba97SEli Cohen qp->has_rq = qp_has_rq(init_attr); 928e126ba97SEli Cohen err = set_rq_size(dev, &init_attr->cap, qp->has_rq, 929e126ba97SEli Cohen qp, (pd && pd->uobject) ? &ucmd : NULL); 930e126ba97SEli Cohen if (err) { 931e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 932e126ba97SEli Cohen return err; 933e126ba97SEli Cohen } 934e126ba97SEli Cohen 935e126ba97SEli Cohen if (pd) { 936e126ba97SEli Cohen if (pd->uobject) { 937938fe83cSSaeed Mahameed __u32 max_wqes = 938938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); 939e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count); 940e126ba97SEli Cohen if (ucmd.rq_wqe_shift != qp->rq.wqe_shift || 941e126ba97SEli Cohen ucmd.rq_wqe_count != qp->rq.wqe_cnt) { 942e126ba97SEli Cohen mlx5_ib_dbg(dev, "invalid rq params\n"); 943e126ba97SEli Cohen return -EINVAL; 944e126ba97SEli Cohen } 945938fe83cSSaeed Mahameed if (ucmd.sq_wqe_count > max_wqes) { 946e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n", 947938fe83cSSaeed Mahameed ucmd.sq_wqe_count, max_wqes); 948e126ba97SEli Cohen return -EINVAL; 949e126ba97SEli Cohen } 950e126ba97SEli Cohen err = create_user_qp(dev, pd, qp, udata, &in, &resp, &inlen); 951e126ba97SEli Cohen if (err) 952e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 953e126ba97SEli Cohen } else { 954e126ba97SEli Cohen err = create_kernel_qp(dev, init_attr, qp, &in, &inlen); 955e126ba97SEli Cohen if (err) 956e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 957e126ba97SEli Cohen } 958e126ba97SEli Cohen 959e126ba97SEli Cohen if (err) 960e126ba97SEli Cohen return err; 961e126ba97SEli Cohen } else { 962e126ba97SEli Cohen in = mlx5_vzalloc(sizeof(*in)); 963e126ba97SEli Cohen if (!in) 964e126ba97SEli Cohen return -ENOMEM; 965e126ba97SEli Cohen 966e126ba97SEli Cohen qp->create_type = MLX5_QP_EMPTY; 967e126ba97SEli Cohen } 968e126ba97SEli Cohen 969e126ba97SEli Cohen if (is_sqp(init_attr->qp_type)) 970e126ba97SEli Cohen qp->port = init_attr->port_num; 971e126ba97SEli Cohen 972e126ba97SEli Cohen in->ctx.flags = cpu_to_be32(to_mlx5_st(init_attr->qp_type) << 16 | 973e126ba97SEli Cohen MLX5_QP_PM_MIGRATED << 11); 974e126ba97SEli Cohen 975e126ba97SEli Cohen if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR) 976e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(to_mpd(pd ? pd : devr->p0)->pdn); 977e126ba97SEli Cohen else 978e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(MLX5_QP_LAT_SENSITIVE); 979e126ba97SEli Cohen 980e126ba97SEli Cohen if (qp->wq_sig) 981e126ba97SEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_ENABLE_SIG); 982e126ba97SEli Cohen 983f360d88aSEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 984f360d88aSEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_BLOCK_MCAST); 985f360d88aSEli Cohen 986051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL) 987051f2630SLeon Romanovsky in->ctx.params2 |= cpu_to_be32(MLX5_QP_BIT_CC_MASTER); 988051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_SEND) 989051f2630SLeon Romanovsky in->ctx.params2 |= cpu_to_be32(MLX5_QP_BIT_CC_SLAVE_SEND); 990051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_RECV) 991051f2630SLeon Romanovsky in->ctx.params2 |= cpu_to_be32(MLX5_QP_BIT_CC_SLAVE_RECV); 992051f2630SLeon Romanovsky 993e126ba97SEli Cohen if (qp->scat_cqe && is_connected(init_attr->qp_type)) { 994e126ba97SEli Cohen int rcqe_sz; 995e126ba97SEli Cohen int scqe_sz; 996e126ba97SEli Cohen 997e126ba97SEli Cohen rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq); 998e126ba97SEli Cohen scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq); 999e126ba97SEli Cohen 1000e126ba97SEli Cohen if (rcqe_sz == 128) 1001e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA64_CQE; 1002e126ba97SEli Cohen else 1003e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA32_CQE; 1004e126ba97SEli Cohen 1005e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) { 1006e126ba97SEli Cohen if (scqe_sz == 128) 1007e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA64_CQE; 1008e126ba97SEli Cohen else 1009e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA32_CQE; 1010e126ba97SEli Cohen } 1011e126ba97SEli Cohen } 1012e126ba97SEli Cohen 1013e126ba97SEli Cohen if (qp->rq.wqe_cnt) { 1014e126ba97SEli Cohen in->ctx.rq_size_stride = (qp->rq.wqe_shift - 4); 1015e126ba97SEli Cohen in->ctx.rq_size_stride |= ilog2(qp->rq.wqe_cnt) << 3; 1016e126ba97SEli Cohen } 1017e126ba97SEli Cohen 1018e126ba97SEli Cohen in->ctx.rq_type_srqn = get_rx_type(qp, init_attr); 1019e126ba97SEli Cohen 1020e126ba97SEli Cohen if (qp->sq.wqe_cnt) 1021e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(ilog2(qp->sq.wqe_cnt) << 11); 1022e126ba97SEli Cohen else 1023e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(0x8000); 1024e126ba97SEli Cohen 1025e126ba97SEli Cohen /* Set default resources */ 1026e126ba97SEli Cohen switch (init_attr->qp_type) { 1027e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1028e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1029e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1030e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1031e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(init_attr->xrcd)->xrcdn); 1032e126ba97SEli Cohen break; 1033e126ba97SEli Cohen case IB_QPT_XRC_INI: 1034e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1035e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 1036e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1037e126ba97SEli Cohen break; 1038e126ba97SEli Cohen default: 1039e126ba97SEli Cohen if (init_attr->srq) { 1040e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x0)->xrcdn); 1041e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(init_attr->srq)->msrq.srqn); 1042e126ba97SEli Cohen } else { 1043e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 10444aa17b28SHaggai Abramonvsky in->ctx.rq_type_srqn |= 10454aa17b28SHaggai Abramonvsky cpu_to_be32(to_msrq(devr->s1)->msrq.srqn); 1046e126ba97SEli Cohen } 1047e126ba97SEli Cohen } 1048e126ba97SEli Cohen 1049e126ba97SEli Cohen if (init_attr->send_cq) 1050e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(init_attr->send_cq)->mcq.cqn); 1051e126ba97SEli Cohen 1052e126ba97SEli Cohen if (init_attr->recv_cq) 1053e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(init_attr->recv_cq)->mcq.cqn); 1054e126ba97SEli Cohen 1055e126ba97SEli Cohen in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); 1056e126ba97SEli Cohen 1057cfb5e088SHaggai Abramovsky if (MLX5_CAP_GEN(mdev, cqe_version) == MLX5_CQE_VERSION_V1) { 1058cfb5e088SHaggai Abramovsky qpc = MLX5_ADDR_OF(create_qp_in, in, qpc); 1059cfb5e088SHaggai Abramovsky /* 0xffffff means we ask to work with cqe version 0 */ 1060cfb5e088SHaggai Abramovsky MLX5_SET(qpc, qpc, user_index, uidx); 1061cfb5e088SHaggai Abramovsky } 1062cfb5e088SHaggai Abramovsky 10639603b61dSJack Morgenstein err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen); 1064e126ba97SEli Cohen if (err) { 1065e126ba97SEli Cohen mlx5_ib_dbg(dev, "create qp failed\n"); 1066e126ba97SEli Cohen goto err_create; 1067e126ba97SEli Cohen } 1068e126ba97SEli Cohen 1069479163f4SAl Viro kvfree(in); 1070e126ba97SEli Cohen /* Hardware wants QPN written in big-endian order (after 1071e126ba97SEli Cohen * shifting) for send doorbell. Precompute this value to save 1072e126ba97SEli Cohen * a little bit when posting sends. 1073e126ba97SEli Cohen */ 1074e126ba97SEli Cohen qp->doorbell_qpn = swab32(qp->mqp.qpn << 8); 1075e126ba97SEli Cohen 1076e126ba97SEli Cohen qp->mqp.event = mlx5_ib_qp_event; 1077e126ba97SEli Cohen 1078e126ba97SEli Cohen return 0; 1079e126ba97SEli Cohen 1080e126ba97SEli Cohen err_create: 1081e126ba97SEli Cohen if (qp->create_type == MLX5_QP_USER) 1082e126ba97SEli Cohen destroy_qp_user(pd, qp); 1083e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_KERNEL) 1084e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1085e126ba97SEli Cohen 1086479163f4SAl Viro kvfree(in); 1087e126ba97SEli Cohen return err; 1088e126ba97SEli Cohen } 1089e126ba97SEli Cohen 1090e126ba97SEli Cohen static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1091e126ba97SEli Cohen __acquires(&send_cq->lock) __acquires(&recv_cq->lock) 1092e126ba97SEli Cohen { 1093e126ba97SEli Cohen if (send_cq) { 1094e126ba97SEli Cohen if (recv_cq) { 1095e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1096e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1097e126ba97SEli Cohen spin_lock_nested(&recv_cq->lock, 1098e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1099e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1100e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1101e126ba97SEli Cohen __acquire(&recv_cq->lock); 1102e126ba97SEli Cohen } else { 1103e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1104e126ba97SEli Cohen spin_lock_nested(&send_cq->lock, 1105e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1106e126ba97SEli Cohen } 1107e126ba97SEli Cohen } else { 1108e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 11096a4f139aSEli Cohen __acquire(&recv_cq->lock); 1110e126ba97SEli Cohen } 1111e126ba97SEli Cohen } else if (recv_cq) { 1112e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 11136a4f139aSEli Cohen __acquire(&send_cq->lock); 11146a4f139aSEli Cohen } else { 11156a4f139aSEli Cohen __acquire(&send_cq->lock); 11166a4f139aSEli Cohen __acquire(&recv_cq->lock); 1117e126ba97SEli Cohen } 1118e126ba97SEli Cohen } 1119e126ba97SEli Cohen 1120e126ba97SEli Cohen static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1121e126ba97SEli Cohen __releases(&send_cq->lock) __releases(&recv_cq->lock) 1122e126ba97SEli Cohen { 1123e126ba97SEli Cohen if (send_cq) { 1124e126ba97SEli Cohen if (recv_cq) { 1125e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1126e126ba97SEli Cohen spin_unlock(&recv_cq->lock); 1127e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1128e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1129e126ba97SEli Cohen __release(&recv_cq->lock); 1130e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1131e126ba97SEli Cohen } else { 1132e126ba97SEli Cohen spin_unlock(&send_cq->lock); 1133e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1134e126ba97SEli Cohen } 1135e126ba97SEli Cohen } else { 11366a4f139aSEli Cohen __release(&recv_cq->lock); 1137e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1138e126ba97SEli Cohen } 1139e126ba97SEli Cohen } else if (recv_cq) { 11406a4f139aSEli Cohen __release(&send_cq->lock); 1141e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 11426a4f139aSEli Cohen } else { 11436a4f139aSEli Cohen __release(&recv_cq->lock); 11446a4f139aSEli Cohen __release(&send_cq->lock); 1145e126ba97SEli Cohen } 1146e126ba97SEli Cohen } 1147e126ba97SEli Cohen 1148e126ba97SEli Cohen static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp) 1149e126ba97SEli Cohen { 1150e126ba97SEli Cohen return to_mpd(qp->ibqp.pd); 1151e126ba97SEli Cohen } 1152e126ba97SEli Cohen 1153e126ba97SEli Cohen static void get_cqs(struct mlx5_ib_qp *qp, 1154e126ba97SEli Cohen struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq) 1155e126ba97SEli Cohen { 1156e126ba97SEli Cohen switch (qp->ibqp.qp_type) { 1157e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1158e126ba97SEli Cohen *send_cq = NULL; 1159e126ba97SEli Cohen *recv_cq = NULL; 1160e126ba97SEli Cohen break; 1161e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1162e126ba97SEli Cohen case IB_QPT_XRC_INI: 1163e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1164e126ba97SEli Cohen *recv_cq = NULL; 1165e126ba97SEli Cohen break; 1166e126ba97SEli Cohen 1167e126ba97SEli Cohen case IB_QPT_SMI: 1168e126ba97SEli Cohen case IB_QPT_GSI: 1169e126ba97SEli Cohen case IB_QPT_RC: 1170e126ba97SEli Cohen case IB_QPT_UC: 1171e126ba97SEli Cohen case IB_QPT_UD: 1172e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1173e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1174e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1175e126ba97SEli Cohen *recv_cq = to_mcq(qp->ibqp.recv_cq); 1176e126ba97SEli Cohen break; 1177e126ba97SEli Cohen 1178e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1179e126ba97SEli Cohen case IB_QPT_MAX: 1180e126ba97SEli Cohen default: 1181e126ba97SEli Cohen *send_cq = NULL; 1182e126ba97SEli Cohen *recv_cq = NULL; 1183e126ba97SEli Cohen break; 1184e126ba97SEli Cohen } 1185e126ba97SEli Cohen } 1186e126ba97SEli Cohen 1187e126ba97SEli Cohen static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 1188e126ba97SEli Cohen { 1189e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1190e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1191e126ba97SEli Cohen int err; 1192e126ba97SEli Cohen 1193e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1194e126ba97SEli Cohen if (!in) 1195e126ba97SEli Cohen return; 11967bef7ad2SEli Cohen 11976aec21f6SHaggai Eran if (qp->state != IB_QPS_RESET) { 11986aec21f6SHaggai Eran mlx5_ib_qp_disable_pagefaults(qp); 11999603b61dSJack Morgenstein if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state), 1200c3c6c9c8SHaggai Abramonvsky MLX5_QP_STATE_RST, in, 0, &qp->mqp)) 1201e126ba97SEli Cohen mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n", 1202e126ba97SEli Cohen qp->mqp.qpn); 12036aec21f6SHaggai Eran } 1204e126ba97SEli Cohen 1205e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1206e126ba97SEli Cohen 1207e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) { 1208e126ba97SEli Cohen mlx5_ib_lock_cqs(send_cq, recv_cq); 1209e126ba97SEli Cohen __mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1210e126ba97SEli Cohen qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 1211e126ba97SEli Cohen if (send_cq != recv_cq) 1212e126ba97SEli Cohen __mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1213e126ba97SEli Cohen mlx5_ib_unlock_cqs(send_cq, recv_cq); 1214e126ba97SEli Cohen } 1215e126ba97SEli Cohen 12169603b61dSJack Morgenstein err = mlx5_core_destroy_qp(dev->mdev, &qp->mqp); 1217e126ba97SEli Cohen if (err) 1218e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", qp->mqp.qpn); 1219e126ba97SEli Cohen kfree(in); 1220e126ba97SEli Cohen 1221e126ba97SEli Cohen 1222e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) 1223e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1224e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_USER) 1225e126ba97SEli Cohen destroy_qp_user(&get_pd(qp)->ibpd, qp); 1226e126ba97SEli Cohen } 1227e126ba97SEli Cohen 1228e126ba97SEli Cohen static const char *ib_qp_type_str(enum ib_qp_type type) 1229e126ba97SEli Cohen { 1230e126ba97SEli Cohen switch (type) { 1231e126ba97SEli Cohen case IB_QPT_SMI: 1232e126ba97SEli Cohen return "IB_QPT_SMI"; 1233e126ba97SEli Cohen case IB_QPT_GSI: 1234e126ba97SEli Cohen return "IB_QPT_GSI"; 1235e126ba97SEli Cohen case IB_QPT_RC: 1236e126ba97SEli Cohen return "IB_QPT_RC"; 1237e126ba97SEli Cohen case IB_QPT_UC: 1238e126ba97SEli Cohen return "IB_QPT_UC"; 1239e126ba97SEli Cohen case IB_QPT_UD: 1240e126ba97SEli Cohen return "IB_QPT_UD"; 1241e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1242e126ba97SEli Cohen return "IB_QPT_RAW_IPV6"; 1243e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1244e126ba97SEli Cohen return "IB_QPT_RAW_ETHERTYPE"; 1245e126ba97SEli Cohen case IB_QPT_XRC_INI: 1246e126ba97SEli Cohen return "IB_QPT_XRC_INI"; 1247e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1248e126ba97SEli Cohen return "IB_QPT_XRC_TGT"; 1249e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1250e126ba97SEli Cohen return "IB_QPT_RAW_PACKET"; 1251e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1252e126ba97SEli Cohen return "MLX5_IB_QPT_REG_UMR"; 1253e126ba97SEli Cohen case IB_QPT_MAX: 1254e126ba97SEli Cohen default: 1255e126ba97SEli Cohen return "Invalid QP type"; 1256e126ba97SEli Cohen } 1257e126ba97SEli Cohen } 1258e126ba97SEli Cohen 1259e126ba97SEli Cohen struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1260e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1261e126ba97SEli Cohen struct ib_udata *udata) 1262e126ba97SEli Cohen { 1263e126ba97SEli Cohen struct mlx5_ib_dev *dev; 1264e126ba97SEli Cohen struct mlx5_ib_qp *qp; 1265e126ba97SEli Cohen u16 xrcdn = 0; 1266e126ba97SEli Cohen int err; 1267e126ba97SEli Cohen 1268e126ba97SEli Cohen if (pd) { 1269e126ba97SEli Cohen dev = to_mdev(pd->device); 1270e126ba97SEli Cohen } else { 1271e126ba97SEli Cohen /* being cautious here */ 1272e126ba97SEli Cohen if (init_attr->qp_type != IB_QPT_XRC_TGT && 1273e126ba97SEli Cohen init_attr->qp_type != MLX5_IB_QPT_REG_UMR) { 1274e126ba97SEli Cohen pr_warn("%s: no PD for transport %s\n", __func__, 1275e126ba97SEli Cohen ib_qp_type_str(init_attr->qp_type)); 1276e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1277e126ba97SEli Cohen } 1278e126ba97SEli Cohen dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device); 1279e126ba97SEli Cohen } 1280e126ba97SEli Cohen 1281e126ba97SEli Cohen switch (init_attr->qp_type) { 1282e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1283e126ba97SEli Cohen case IB_QPT_XRC_INI: 1284938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(dev->mdev, xrc)) { 1285e126ba97SEli Cohen mlx5_ib_dbg(dev, "XRC not supported\n"); 1286e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 1287e126ba97SEli Cohen } 1288e126ba97SEli Cohen init_attr->recv_cq = NULL; 1289e126ba97SEli Cohen if (init_attr->qp_type == IB_QPT_XRC_TGT) { 1290e126ba97SEli Cohen xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn; 1291e126ba97SEli Cohen init_attr->send_cq = NULL; 1292e126ba97SEli Cohen } 1293e126ba97SEli Cohen 1294e126ba97SEli Cohen /* fall through */ 1295e126ba97SEli Cohen case IB_QPT_RC: 1296e126ba97SEli Cohen case IB_QPT_UC: 1297e126ba97SEli Cohen case IB_QPT_UD: 1298e126ba97SEli Cohen case IB_QPT_SMI: 1299e126ba97SEli Cohen case IB_QPT_GSI: 1300e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1301e126ba97SEli Cohen qp = kzalloc(sizeof(*qp), GFP_KERNEL); 1302e126ba97SEli Cohen if (!qp) 1303e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 1304e126ba97SEli Cohen 1305e126ba97SEli Cohen err = create_qp_common(dev, pd, init_attr, udata, qp); 1306e126ba97SEli Cohen if (err) { 1307e126ba97SEli Cohen mlx5_ib_dbg(dev, "create_qp_common failed\n"); 1308e126ba97SEli Cohen kfree(qp); 1309e126ba97SEli Cohen return ERR_PTR(err); 1310e126ba97SEli Cohen } 1311e126ba97SEli Cohen 1312e126ba97SEli Cohen if (is_qp0(init_attr->qp_type)) 1313e126ba97SEli Cohen qp->ibqp.qp_num = 0; 1314e126ba97SEli Cohen else if (is_qp1(init_attr->qp_type)) 1315e126ba97SEli Cohen qp->ibqp.qp_num = 1; 1316e126ba97SEli Cohen else 1317e126ba97SEli Cohen qp->ibqp.qp_num = qp->mqp.qpn; 1318e126ba97SEli Cohen 1319e126ba97SEli Cohen mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", 1320e126ba97SEli Cohen qp->ibqp.qp_num, qp->mqp.qpn, to_mcq(init_attr->recv_cq)->mcq.cqn, 1321e126ba97SEli Cohen to_mcq(init_attr->send_cq)->mcq.cqn); 1322e126ba97SEli Cohen 1323e126ba97SEli Cohen qp->xrcdn = xrcdn; 1324e126ba97SEli Cohen 1325e126ba97SEli Cohen break; 1326e126ba97SEli Cohen 1327e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1328e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1329e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1330e126ba97SEli Cohen case IB_QPT_MAX: 1331e126ba97SEli Cohen default: 1332e126ba97SEli Cohen mlx5_ib_dbg(dev, "unsupported qp type %d\n", 1333e126ba97SEli Cohen init_attr->qp_type); 1334e126ba97SEli Cohen /* Don't support raw QPs */ 1335e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1336e126ba97SEli Cohen } 1337e126ba97SEli Cohen 1338e126ba97SEli Cohen return &qp->ibqp; 1339e126ba97SEli Cohen } 1340e126ba97SEli Cohen 1341e126ba97SEli Cohen int mlx5_ib_destroy_qp(struct ib_qp *qp) 1342e126ba97SEli Cohen { 1343e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(qp->device); 1344e126ba97SEli Cohen struct mlx5_ib_qp *mqp = to_mqp(qp); 1345e126ba97SEli Cohen 1346e126ba97SEli Cohen destroy_qp_common(dev, mqp); 1347e126ba97SEli Cohen 1348e126ba97SEli Cohen kfree(mqp); 1349e126ba97SEli Cohen 1350e126ba97SEli Cohen return 0; 1351e126ba97SEli Cohen } 1352e126ba97SEli Cohen 1353e126ba97SEli Cohen static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr, 1354e126ba97SEli Cohen int attr_mask) 1355e126ba97SEli Cohen { 1356e126ba97SEli Cohen u32 hw_access_flags = 0; 1357e126ba97SEli Cohen u8 dest_rd_atomic; 1358e126ba97SEli Cohen u32 access_flags; 1359e126ba97SEli Cohen 1360e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1361e126ba97SEli Cohen dest_rd_atomic = attr->max_dest_rd_atomic; 1362e126ba97SEli Cohen else 1363e126ba97SEli Cohen dest_rd_atomic = qp->resp_depth; 1364e126ba97SEli Cohen 1365e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1366e126ba97SEli Cohen access_flags = attr->qp_access_flags; 1367e126ba97SEli Cohen else 1368e126ba97SEli Cohen access_flags = qp->atomic_rd_en; 1369e126ba97SEli Cohen 1370e126ba97SEli Cohen if (!dest_rd_atomic) 1371e126ba97SEli Cohen access_flags &= IB_ACCESS_REMOTE_WRITE; 1372e126ba97SEli Cohen 1373e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_READ) 1374e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RRE; 1375e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_ATOMIC) 1376e126ba97SEli Cohen hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX); 1377e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_WRITE) 1378e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RWE; 1379e126ba97SEli Cohen 1380e126ba97SEli Cohen return cpu_to_be32(hw_access_flags); 1381e126ba97SEli Cohen } 1382e126ba97SEli Cohen 1383e126ba97SEli Cohen enum { 1384e126ba97SEli Cohen MLX5_PATH_FLAG_FL = 1 << 0, 1385e126ba97SEli Cohen MLX5_PATH_FLAG_FREE_AR = 1 << 1, 1386e126ba97SEli Cohen MLX5_PATH_FLAG_COUNTER = 1 << 2, 1387e126ba97SEli Cohen }; 1388e126ba97SEli Cohen 1389e126ba97SEli Cohen static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) 1390e126ba97SEli Cohen { 1391e126ba97SEli Cohen if (rate == IB_RATE_PORT_CURRENT) { 1392e126ba97SEli Cohen return 0; 1393e126ba97SEli Cohen } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) { 1394e126ba97SEli Cohen return -EINVAL; 1395e126ba97SEli Cohen } else { 1396e126ba97SEli Cohen while (rate != IB_RATE_2_5_GBPS && 1397e126ba97SEli Cohen !(1 << (rate + MLX5_STAT_RATE_OFFSET) & 1398938fe83cSSaeed Mahameed MLX5_CAP_GEN(dev->mdev, stat_rate_support))) 1399e126ba97SEli Cohen --rate; 1400e126ba97SEli Cohen } 1401e126ba97SEli Cohen 1402e126ba97SEli Cohen return rate + MLX5_STAT_RATE_OFFSET; 1403e126ba97SEli Cohen } 1404e126ba97SEli Cohen 1405e126ba97SEli Cohen static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah, 1406e126ba97SEli Cohen struct mlx5_qp_path *path, u8 port, int attr_mask, 1407e126ba97SEli Cohen u32 path_flags, const struct ib_qp_attr *attr) 1408e126ba97SEli Cohen { 14092811ba51SAchiad Shochat enum rdma_link_layer ll = rdma_port_get_link_layer(&dev->ib_dev, port); 1410e126ba97SEli Cohen int err; 1411e126ba97SEli Cohen 1412e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1413e126ba97SEli Cohen path->pkey_index = attr->pkey_index; 1414e126ba97SEli Cohen 1415e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 1416938fe83cSSaeed Mahameed if (ah->grh.sgid_index >= 1417938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].gid_table_len) { 1418f4f01b54SJoe Perches pr_err("sgid_index (%u) too large. max is %d\n", 1419938fe83cSSaeed Mahameed ah->grh.sgid_index, 1420938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].gid_table_len); 1421f83b4263SEli Cohen return -EINVAL; 1422f83b4263SEli Cohen } 14232811ba51SAchiad Shochat } 14242811ba51SAchiad Shochat 14252811ba51SAchiad Shochat if (ll == IB_LINK_LAYER_ETHERNET) { 14262811ba51SAchiad Shochat if (!(ah->ah_flags & IB_AH_GRH)) 14272811ba51SAchiad Shochat return -EINVAL; 14282811ba51SAchiad Shochat memcpy(path->rmac, ah->dmac, sizeof(ah->dmac)); 14292811ba51SAchiad Shochat path->udp_sport = mlx5_get_roce_udp_sport(dev, port, 14302811ba51SAchiad Shochat ah->grh.sgid_index); 14312811ba51SAchiad Shochat path->dci_cfi_prio_sl = (ah->sl & 0x7) << 4; 14322811ba51SAchiad Shochat } else { 14332811ba51SAchiad Shochat path->fl = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0; 14342811ba51SAchiad Shochat path->free_ar = (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x80 : 14352811ba51SAchiad Shochat 0; 14362811ba51SAchiad Shochat path->rlid = cpu_to_be16(ah->dlid); 14372811ba51SAchiad Shochat path->grh_mlid = ah->src_path_bits & 0x7f; 14382811ba51SAchiad Shochat if (ah->ah_flags & IB_AH_GRH) 1439e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 14402811ba51SAchiad Shochat path->dci_cfi_prio_sl = ah->sl & 0xf; 14412811ba51SAchiad Shochat } 14422811ba51SAchiad Shochat 14432811ba51SAchiad Shochat if (ah->ah_flags & IB_AH_GRH) { 1444e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1445e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1446e126ba97SEli Cohen path->tclass_flowlabel = 1447e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1448e126ba97SEli Cohen (ah->grh.flow_label)); 1449e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1450e126ba97SEli Cohen } 1451e126ba97SEli Cohen 1452e126ba97SEli Cohen err = ib_rate_to_mlx5(dev, ah->static_rate); 1453e126ba97SEli Cohen if (err < 0) 1454e126ba97SEli Cohen return err; 1455e126ba97SEli Cohen path->static_rate = err; 1456e126ba97SEli Cohen path->port = port; 1457e126ba97SEli Cohen 1458e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1459e126ba97SEli Cohen path->ackto_lt = attr->timeout << 3; 1460e126ba97SEli Cohen 1461e126ba97SEli Cohen return 0; 1462e126ba97SEli Cohen } 1463e126ba97SEli Cohen 1464e126ba97SEli Cohen static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = { 1465e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1466e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1467e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1468e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1469e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1470e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1471e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1472e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1473e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1474e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1475e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1476e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY | 1477e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1478e126ba97SEli Cohen }, 1479e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1480e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1481e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1482e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1483e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1484e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1485e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1486e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1487e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1488e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1489e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1490e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | 1491e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1492a4774e90SEli Cohen [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1493a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE | 1494a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1495a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1496a4774e90SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1497e126ba97SEli Cohen }, 1498e126ba97SEli Cohen }, 1499e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1500e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1501e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1502e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1503e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1504e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1505e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1506e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT, 1507e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1508e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1509e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1510e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1511e126ba97SEli Cohen }, 1512e126ba97SEli Cohen }, 1513e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1514e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1515e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1516e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1517e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1518e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT | 1519c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1520c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1521e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1522c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1523c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1524e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | 1525e126ba97SEli Cohen MLX5_QP_OPTPAR_SRQN | 1526e126ba97SEli Cohen MLX5_QP_OPTPAR_CQN_RCV, 1527e126ba97SEli Cohen }, 1528e126ba97SEli Cohen }, 1529e126ba97SEli Cohen [MLX5_QP_STATE_SQER] = { 1530e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1531e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1532e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, 153375959f56SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE, 1534a4774e90SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT | 1535a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1536a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1537a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE, 1538e126ba97SEli Cohen }, 1539e126ba97SEli Cohen }, 1540e126ba97SEli Cohen }; 1541e126ba97SEli Cohen 1542e126ba97SEli Cohen static int ib_nr_to_mlx5_nr(int ib_mask) 1543e126ba97SEli Cohen { 1544e126ba97SEli Cohen switch (ib_mask) { 1545e126ba97SEli Cohen case IB_QP_STATE: 1546e126ba97SEli Cohen return 0; 1547e126ba97SEli Cohen case IB_QP_CUR_STATE: 1548e126ba97SEli Cohen return 0; 1549e126ba97SEli Cohen case IB_QP_EN_SQD_ASYNC_NOTIFY: 1550e126ba97SEli Cohen return 0; 1551e126ba97SEli Cohen case IB_QP_ACCESS_FLAGS: 1552e126ba97SEli Cohen return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE | 1553e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE; 1554e126ba97SEli Cohen case IB_QP_PKEY_INDEX: 1555e126ba97SEli Cohen return MLX5_QP_OPTPAR_PKEY_INDEX; 1556e126ba97SEli Cohen case IB_QP_PORT: 1557e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRI_PORT; 1558e126ba97SEli Cohen case IB_QP_QKEY: 1559e126ba97SEli Cohen return MLX5_QP_OPTPAR_Q_KEY; 1560e126ba97SEli Cohen case IB_QP_AV: 1561e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH | 1562e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT; 1563e126ba97SEli Cohen case IB_QP_PATH_MTU: 1564e126ba97SEli Cohen return 0; 1565e126ba97SEli Cohen case IB_QP_TIMEOUT: 1566e126ba97SEli Cohen return MLX5_QP_OPTPAR_ACK_TIMEOUT; 1567e126ba97SEli Cohen case IB_QP_RETRY_CNT: 1568e126ba97SEli Cohen return MLX5_QP_OPTPAR_RETRY_COUNT; 1569e126ba97SEli Cohen case IB_QP_RNR_RETRY: 1570e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_RETRY; 1571e126ba97SEli Cohen case IB_QP_RQ_PSN: 1572e126ba97SEli Cohen return 0; 1573e126ba97SEli Cohen case IB_QP_MAX_QP_RD_ATOMIC: 1574e126ba97SEli Cohen return MLX5_QP_OPTPAR_SRA_MAX; 1575e126ba97SEli Cohen case IB_QP_ALT_PATH: 1576e126ba97SEli Cohen return MLX5_QP_OPTPAR_ALT_ADDR_PATH; 1577e126ba97SEli Cohen case IB_QP_MIN_RNR_TIMER: 1578e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_TIMEOUT; 1579e126ba97SEli Cohen case IB_QP_SQ_PSN: 1580e126ba97SEli Cohen return 0; 1581e126ba97SEli Cohen case IB_QP_MAX_DEST_RD_ATOMIC: 1582e126ba97SEli Cohen return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE | 1583e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE; 1584e126ba97SEli Cohen case IB_QP_PATH_MIG_STATE: 1585e126ba97SEli Cohen return MLX5_QP_OPTPAR_PM_STATE; 1586e126ba97SEli Cohen case IB_QP_CAP: 1587e126ba97SEli Cohen return 0; 1588e126ba97SEli Cohen case IB_QP_DEST_QPN: 1589e126ba97SEli Cohen return 0; 1590e126ba97SEli Cohen } 1591e126ba97SEli Cohen return 0; 1592e126ba97SEli Cohen } 1593e126ba97SEli Cohen 1594e126ba97SEli Cohen static int ib_mask_to_mlx5_opt(int ib_mask) 1595e126ba97SEli Cohen { 1596e126ba97SEli Cohen int result = 0; 1597e126ba97SEli Cohen int i; 1598e126ba97SEli Cohen 1599e126ba97SEli Cohen for (i = 0; i < 8 * sizeof(int); i++) { 1600e126ba97SEli Cohen if ((1 << i) & ib_mask) 1601e126ba97SEli Cohen result |= ib_nr_to_mlx5_nr(1 << i); 1602e126ba97SEli Cohen } 1603e126ba97SEli Cohen 1604e126ba97SEli Cohen return result; 1605e126ba97SEli Cohen } 1606e126ba97SEli Cohen 1607e126ba97SEli Cohen static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, 1608e126ba97SEli Cohen const struct ib_qp_attr *attr, int attr_mask, 1609e126ba97SEli Cohen enum ib_qp_state cur_state, enum ib_qp_state new_state) 1610e126ba97SEli Cohen { 1611e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1612e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1613e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1614e126ba97SEli Cohen struct mlx5_qp_context *context; 1615e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1616e126ba97SEli Cohen struct mlx5_ib_pd *pd; 1617e126ba97SEli Cohen enum mlx5_qp_state mlx5_cur, mlx5_new; 1618e126ba97SEli Cohen enum mlx5_qp_optpar optpar; 1619e126ba97SEli Cohen int sqd_event; 1620e126ba97SEli Cohen int mlx5_st; 1621e126ba97SEli Cohen int err; 1622e126ba97SEli Cohen 1623e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1624e126ba97SEli Cohen if (!in) 1625e126ba97SEli Cohen return -ENOMEM; 1626e126ba97SEli Cohen 1627e126ba97SEli Cohen context = &in->ctx; 1628e126ba97SEli Cohen err = to_mlx5_st(ibqp->qp_type); 1629e126ba97SEli Cohen if (err < 0) 1630e126ba97SEli Cohen goto out; 1631e126ba97SEli Cohen 1632e126ba97SEli Cohen context->flags = cpu_to_be32(err << 16); 1633e126ba97SEli Cohen 1634e126ba97SEli Cohen if (!(attr_mask & IB_QP_PATH_MIG_STATE)) { 1635e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1636e126ba97SEli Cohen } else { 1637e126ba97SEli Cohen switch (attr->path_mig_state) { 1638e126ba97SEli Cohen case IB_MIG_MIGRATED: 1639e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1640e126ba97SEli Cohen break; 1641e126ba97SEli Cohen case IB_MIG_REARM: 1642e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11); 1643e126ba97SEli Cohen break; 1644e126ba97SEli Cohen case IB_MIG_ARMED: 1645e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11); 1646e126ba97SEli Cohen break; 1647e126ba97SEli Cohen } 1648e126ba97SEli Cohen } 1649e126ba97SEli Cohen 1650e126ba97SEli Cohen if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { 1651e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_256 << 5) | 8; 1652e126ba97SEli Cohen } else if (ibqp->qp_type == IB_QPT_UD || 1653e126ba97SEli Cohen ibqp->qp_type == MLX5_IB_QPT_REG_UMR) { 1654e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_4096 << 5) | 12; 1655e126ba97SEli Cohen } else if (attr_mask & IB_QP_PATH_MTU) { 1656e126ba97SEli Cohen if (attr->path_mtu < IB_MTU_256 || 1657e126ba97SEli Cohen attr->path_mtu > IB_MTU_4096) { 1658e126ba97SEli Cohen mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu); 1659e126ba97SEli Cohen err = -EINVAL; 1660e126ba97SEli Cohen goto out; 1661e126ba97SEli Cohen } 1662938fe83cSSaeed Mahameed context->mtu_msgmax = (attr->path_mtu << 5) | 1663938fe83cSSaeed Mahameed (u8)MLX5_CAP_GEN(dev->mdev, log_max_msg); 1664e126ba97SEli Cohen } 1665e126ba97SEli Cohen 1666e126ba97SEli Cohen if (attr_mask & IB_QP_DEST_QPN) 1667e126ba97SEli Cohen context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num); 1668e126ba97SEli Cohen 1669e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1670e126ba97SEli Cohen context->pri_path.pkey_index = attr->pkey_index; 1671e126ba97SEli Cohen 1672e126ba97SEli Cohen /* todo implement counter_index functionality */ 1673e126ba97SEli Cohen 1674e126ba97SEli Cohen if (is_sqp(ibqp->qp_type)) 1675e126ba97SEli Cohen context->pri_path.port = qp->port; 1676e126ba97SEli Cohen 1677e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1678e126ba97SEli Cohen context->pri_path.port = attr->port_num; 1679e126ba97SEli Cohen 1680e126ba97SEli Cohen if (attr_mask & IB_QP_AV) { 1681e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path, 1682e126ba97SEli Cohen attr_mask & IB_QP_PORT ? attr->port_num : qp->port, 1683e126ba97SEli Cohen attr_mask, 0, attr); 1684e126ba97SEli Cohen if (err) 1685e126ba97SEli Cohen goto out; 1686e126ba97SEli Cohen } 1687e126ba97SEli Cohen 1688e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1689e126ba97SEli Cohen context->pri_path.ackto_lt |= attr->timeout << 3; 1690e126ba97SEli Cohen 1691e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) { 1692e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path, 1693e126ba97SEli Cohen attr->alt_port_num, attr_mask, 0, attr); 1694e126ba97SEli Cohen if (err) 1695e126ba97SEli Cohen goto out; 1696e126ba97SEli Cohen } 1697e126ba97SEli Cohen 1698e126ba97SEli Cohen pd = get_pd(qp); 1699e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1700e126ba97SEli Cohen 1701e126ba97SEli Cohen context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn); 1702e126ba97SEli Cohen context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0; 1703e126ba97SEli Cohen context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0; 1704e126ba97SEli Cohen context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28); 1705e126ba97SEli Cohen 1706e126ba97SEli Cohen if (attr_mask & IB_QP_RNR_RETRY) 1707e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->rnr_retry << 13); 1708e126ba97SEli Cohen 1709e126ba97SEli Cohen if (attr_mask & IB_QP_RETRY_CNT) 1710e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->retry_cnt << 16); 1711e126ba97SEli Cohen 1712e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 1713e126ba97SEli Cohen if (attr->max_rd_atomic) 1714e126ba97SEli Cohen context->params1 |= 1715e126ba97SEli Cohen cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); 1716e126ba97SEli Cohen } 1717e126ba97SEli Cohen 1718e126ba97SEli Cohen if (attr_mask & IB_QP_SQ_PSN) 1719e126ba97SEli Cohen context->next_send_psn = cpu_to_be32(attr->sq_psn); 1720e126ba97SEli Cohen 1721e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 1722e126ba97SEli Cohen if (attr->max_dest_rd_atomic) 1723e126ba97SEli Cohen context->params2 |= 1724e126ba97SEli Cohen cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21); 1725e126ba97SEli Cohen } 1726e126ba97SEli Cohen 1727e126ba97SEli Cohen if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) 1728e126ba97SEli Cohen context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask); 1729e126ba97SEli Cohen 1730e126ba97SEli Cohen if (attr_mask & IB_QP_MIN_RNR_TIMER) 1731e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24); 1732e126ba97SEli Cohen 1733e126ba97SEli Cohen if (attr_mask & IB_QP_RQ_PSN) 1734e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn); 1735e126ba97SEli Cohen 1736e126ba97SEli Cohen if (attr_mask & IB_QP_QKEY) 1737e126ba97SEli Cohen context->qkey = cpu_to_be32(attr->qkey); 1738e126ba97SEli Cohen 1739e126ba97SEli Cohen if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1740e126ba97SEli Cohen context->db_rec_addr = cpu_to_be64(qp->db.dma); 1741e126ba97SEli Cohen 1742e126ba97SEli Cohen if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && 1743e126ba97SEli Cohen attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify) 1744e126ba97SEli Cohen sqd_event = 1; 1745e126ba97SEli Cohen else 1746e126ba97SEli Cohen sqd_event = 0; 1747e126ba97SEli Cohen 1748e126ba97SEli Cohen if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1749e126ba97SEli Cohen context->sq_crq_size |= cpu_to_be16(1 << 4); 1750e126ba97SEli Cohen 1751e126ba97SEli Cohen 1752e126ba97SEli Cohen mlx5_cur = to_mlx5_state(cur_state); 1753e126ba97SEli Cohen mlx5_new = to_mlx5_state(new_state); 1754e126ba97SEli Cohen mlx5_st = to_mlx5_st(ibqp->qp_type); 175507c9113fSEli Cohen if (mlx5_st < 0) 1756e126ba97SEli Cohen goto out; 1757e126ba97SEli Cohen 17586aec21f6SHaggai Eran /* If moving to a reset or error state, we must disable page faults on 17596aec21f6SHaggai Eran * this QP and flush all current page faults. Otherwise a stale page 17606aec21f6SHaggai Eran * fault may attempt to work on this QP after it is reset and moved 17616aec21f6SHaggai Eran * again to RTS, and may cause the driver and the device to get out of 17626aec21f6SHaggai Eran * sync. */ 17636aec21f6SHaggai Eran if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR && 17646aec21f6SHaggai Eran (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR)) 17656aec21f6SHaggai Eran mlx5_ib_qp_disable_pagefaults(qp); 17666aec21f6SHaggai Eran 1767e126ba97SEli Cohen optpar = ib_mask_to_mlx5_opt(attr_mask); 1768e126ba97SEli Cohen optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st]; 1769e126ba97SEli Cohen in->optparam = cpu_to_be32(optpar); 17709603b61dSJack Morgenstein err = mlx5_core_qp_modify(dev->mdev, to_mlx5_state(cur_state), 1771e126ba97SEli Cohen to_mlx5_state(new_state), in, sqd_event, 1772e126ba97SEli Cohen &qp->mqp); 1773e126ba97SEli Cohen if (err) 1774e126ba97SEli Cohen goto out; 1775e126ba97SEli Cohen 17766aec21f6SHaggai Eran if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 17776aec21f6SHaggai Eran mlx5_ib_qp_enable_pagefaults(qp); 17786aec21f6SHaggai Eran 1779e126ba97SEli Cohen qp->state = new_state; 1780e126ba97SEli Cohen 1781e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1782e126ba97SEli Cohen qp->atomic_rd_en = attr->qp_access_flags; 1783e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1784e126ba97SEli Cohen qp->resp_depth = attr->max_dest_rd_atomic; 1785e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1786e126ba97SEli Cohen qp->port = attr->port_num; 1787e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) 1788e126ba97SEli Cohen qp->alt_port = attr->alt_port_num; 1789e126ba97SEli Cohen 1790e126ba97SEli Cohen /* 1791e126ba97SEli Cohen * If we moved a kernel QP to RESET, clean up all old CQ 1792e126ba97SEli Cohen * entries and reinitialize the QP. 1793e126ba97SEli Cohen */ 1794e126ba97SEli Cohen if (new_state == IB_QPS_RESET && !ibqp->uobject) { 1795e126ba97SEli Cohen mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1796e126ba97SEli Cohen ibqp->srq ? to_msrq(ibqp->srq) : NULL); 1797e126ba97SEli Cohen if (send_cq != recv_cq) 1798e126ba97SEli Cohen mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1799e126ba97SEli Cohen 1800e126ba97SEli Cohen qp->rq.head = 0; 1801e126ba97SEli Cohen qp->rq.tail = 0; 1802e126ba97SEli Cohen qp->sq.head = 0; 1803e126ba97SEli Cohen qp->sq.tail = 0; 1804e126ba97SEli Cohen qp->sq.cur_post = 0; 1805e126ba97SEli Cohen qp->sq.last_poll = 0; 1806e126ba97SEli Cohen qp->db.db[MLX5_RCV_DBR] = 0; 1807e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = 0; 1808e126ba97SEli Cohen } 1809e126ba97SEli Cohen 1810e126ba97SEli Cohen out: 1811e126ba97SEli Cohen kfree(in); 1812e126ba97SEli Cohen return err; 1813e126ba97SEli Cohen } 1814e126ba97SEli Cohen 1815e126ba97SEli Cohen int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1816e126ba97SEli Cohen int attr_mask, struct ib_udata *udata) 1817e126ba97SEli Cohen { 1818e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1819e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1820e126ba97SEli Cohen enum ib_qp_state cur_state, new_state; 1821e126ba97SEli Cohen int err = -EINVAL; 1822e126ba97SEli Cohen int port; 18232811ba51SAchiad Shochat enum rdma_link_layer ll = IB_LINK_LAYER_UNSPECIFIED; 1824e126ba97SEli Cohen 1825e126ba97SEli Cohen mutex_lock(&qp->mutex); 1826e126ba97SEli Cohen 1827e126ba97SEli Cohen cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state; 1828e126ba97SEli Cohen new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state; 1829e126ba97SEli Cohen 18302811ba51SAchiad Shochat if (!(cur_state == new_state && cur_state == IB_QPS_RESET)) { 18312811ba51SAchiad Shochat port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 18322811ba51SAchiad Shochat ll = dev->ib_dev.get_link_layer(&dev->ib_dev, port); 18332811ba51SAchiad Shochat } 18342811ba51SAchiad Shochat 1835e126ba97SEli Cohen if (ibqp->qp_type != MLX5_IB_QPT_REG_UMR && 1836dd5f03beSMatan Barak !ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask, 18372811ba51SAchiad Shochat ll)) 1838e126ba97SEli Cohen goto out; 1839e126ba97SEli Cohen 1840e126ba97SEli Cohen if ((attr_mask & IB_QP_PORT) && 1841938fe83cSSaeed Mahameed (attr->port_num == 0 || 1842938fe83cSSaeed Mahameed attr->port_num > MLX5_CAP_GEN(dev->mdev, num_ports))) 1843e126ba97SEli Cohen goto out; 1844e126ba97SEli Cohen 1845e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) { 1846e126ba97SEli Cohen port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 1847938fe83cSSaeed Mahameed if (attr->pkey_index >= 1848938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].pkey_table_len) 1849e126ba97SEli Cohen goto out; 1850e126ba97SEli Cohen } 1851e126ba97SEli Cohen 1852e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && 1853938fe83cSSaeed Mahameed attr->max_rd_atomic > 1854938fe83cSSaeed Mahameed (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_res_qp))) 1855e126ba97SEli Cohen goto out; 1856e126ba97SEli Cohen 1857e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && 1858938fe83cSSaeed Mahameed attr->max_dest_rd_atomic > 1859938fe83cSSaeed Mahameed (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_req_qp))) 1860e126ba97SEli Cohen goto out; 1861e126ba97SEli Cohen 1862e126ba97SEli Cohen if (cur_state == new_state && cur_state == IB_QPS_RESET) { 1863e126ba97SEli Cohen err = 0; 1864e126ba97SEli Cohen goto out; 1865e126ba97SEli Cohen } 1866e126ba97SEli Cohen 1867e126ba97SEli Cohen err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state); 1868e126ba97SEli Cohen 1869e126ba97SEli Cohen out: 1870e126ba97SEli Cohen mutex_unlock(&qp->mutex); 1871e126ba97SEli Cohen return err; 1872e126ba97SEli Cohen } 1873e126ba97SEli Cohen 1874e126ba97SEli Cohen static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq) 1875e126ba97SEli Cohen { 1876e126ba97SEli Cohen struct mlx5_ib_cq *cq; 1877e126ba97SEli Cohen unsigned cur; 1878e126ba97SEli Cohen 1879e126ba97SEli Cohen cur = wq->head - wq->tail; 1880e126ba97SEli Cohen if (likely(cur + nreq < wq->max_post)) 1881e126ba97SEli Cohen return 0; 1882e126ba97SEli Cohen 1883e126ba97SEli Cohen cq = to_mcq(ib_cq); 1884e126ba97SEli Cohen spin_lock(&cq->lock); 1885e126ba97SEli Cohen cur = wq->head - wq->tail; 1886e126ba97SEli Cohen spin_unlock(&cq->lock); 1887e126ba97SEli Cohen 1888e126ba97SEli Cohen return cur + nreq >= wq->max_post; 1889e126ba97SEli Cohen } 1890e126ba97SEli Cohen 1891e126ba97SEli Cohen static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, 1892e126ba97SEli Cohen u64 remote_addr, u32 rkey) 1893e126ba97SEli Cohen { 1894e126ba97SEli Cohen rseg->raddr = cpu_to_be64(remote_addr); 1895e126ba97SEli Cohen rseg->rkey = cpu_to_be32(rkey); 1896e126ba97SEli Cohen rseg->reserved = 0; 1897e126ba97SEli Cohen } 1898e126ba97SEli Cohen 1899e126ba97SEli Cohen static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, 1900e126ba97SEli Cohen struct ib_send_wr *wr) 1901e126ba97SEli Cohen { 1902e622f2f4SChristoph Hellwig memcpy(&dseg->av, &to_mah(ud_wr(wr)->ah)->av, sizeof(struct mlx5_av)); 1903e622f2f4SChristoph Hellwig dseg->av.dqp_dct = cpu_to_be32(ud_wr(wr)->remote_qpn | MLX5_EXTENDED_UD_AV); 1904e622f2f4SChristoph Hellwig dseg->av.key.qkey.qkey = cpu_to_be32(ud_wr(wr)->remote_qkey); 1905e126ba97SEli Cohen } 1906e126ba97SEli Cohen 1907e126ba97SEli Cohen static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg) 1908e126ba97SEli Cohen { 1909e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(sg->length); 1910e126ba97SEli Cohen dseg->lkey = cpu_to_be32(sg->lkey); 1911e126ba97SEli Cohen dseg->addr = cpu_to_be64(sg->addr); 1912e126ba97SEli Cohen } 1913e126ba97SEli Cohen 1914e126ba97SEli Cohen static __be16 get_klm_octo(int npages) 1915e126ba97SEli Cohen { 1916e126ba97SEli Cohen return cpu_to_be16(ALIGN(npages, 8) / 2); 1917e126ba97SEli Cohen } 1918e126ba97SEli Cohen 1919e126ba97SEli Cohen static __be64 frwr_mkey_mask(void) 1920e126ba97SEli Cohen { 1921e126ba97SEli Cohen u64 result; 1922e126ba97SEli Cohen 1923e126ba97SEli Cohen result = MLX5_MKEY_MASK_LEN | 1924e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1925e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1926e126ba97SEli Cohen MLX5_MKEY_MASK_EN_RINVAL | 1927e126ba97SEli Cohen MLX5_MKEY_MASK_KEY | 1928e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1929e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1930e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1931e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1932e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1933e126ba97SEli Cohen MLX5_MKEY_MASK_SMALL_FENCE | 1934e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1935e126ba97SEli Cohen 1936e126ba97SEli Cohen return cpu_to_be64(result); 1937e126ba97SEli Cohen } 1938e126ba97SEli Cohen 1939e6631814SSagi Grimberg static __be64 sig_mkey_mask(void) 1940e6631814SSagi Grimberg { 1941e6631814SSagi Grimberg u64 result; 1942e6631814SSagi Grimberg 1943e6631814SSagi Grimberg result = MLX5_MKEY_MASK_LEN | 1944e6631814SSagi Grimberg MLX5_MKEY_MASK_PAGE_SIZE | 1945e6631814SSagi Grimberg MLX5_MKEY_MASK_START_ADDR | 1946d5436ba0SSagi Grimberg MLX5_MKEY_MASK_EN_SIGERR | 1947e6631814SSagi Grimberg MLX5_MKEY_MASK_EN_RINVAL | 1948e6631814SSagi Grimberg MLX5_MKEY_MASK_KEY | 1949e6631814SSagi Grimberg MLX5_MKEY_MASK_LR | 1950e6631814SSagi Grimberg MLX5_MKEY_MASK_LW | 1951e6631814SSagi Grimberg MLX5_MKEY_MASK_RR | 1952e6631814SSagi Grimberg MLX5_MKEY_MASK_RW | 1953e6631814SSagi Grimberg MLX5_MKEY_MASK_SMALL_FENCE | 1954e6631814SSagi Grimberg MLX5_MKEY_MASK_FREE | 1955e6631814SSagi Grimberg MLX5_MKEY_MASK_BSF_EN; 1956e6631814SSagi Grimberg 1957e6631814SSagi Grimberg return cpu_to_be64(result); 1958e6631814SSagi Grimberg } 1959e6631814SSagi Grimberg 19608a187ee5SSagi Grimberg static void set_reg_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr, 19618a187ee5SSagi Grimberg struct mlx5_ib_mr *mr) 19628a187ee5SSagi Grimberg { 19638a187ee5SSagi Grimberg int ndescs = mr->ndescs; 19648a187ee5SSagi Grimberg 19658a187ee5SSagi Grimberg memset(umr, 0, sizeof(*umr)); 19668a187ee5SSagi Grimberg umr->flags = MLX5_UMR_CHECK_NOT_FREE; 19678a187ee5SSagi Grimberg umr->klm_octowords = get_klm_octo(ndescs); 19688a187ee5SSagi Grimberg umr->mkey_mask = frwr_mkey_mask(); 19698a187ee5SSagi Grimberg } 19708a187ee5SSagi Grimberg 1971dd01e66aSSagi Grimberg static void set_linv_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr) 1972e126ba97SEli Cohen { 1973e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1974e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); 1975e126ba97SEli Cohen umr->flags = 1 << 7; 1976e126ba97SEli Cohen } 1977e126ba97SEli Cohen 1978968e78ddSHaggai Eran static __be64 get_umr_reg_mr_mask(void) 1979e126ba97SEli Cohen { 1980968e78ddSHaggai Eran u64 result; 1981e126ba97SEli Cohen 1982968e78ddSHaggai Eran result = MLX5_MKEY_MASK_LEN | 1983e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1984e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1985e126ba97SEli Cohen MLX5_MKEY_MASK_PD | 1986e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1987e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1988746b5583SEli Cohen MLX5_MKEY_MASK_KEY | 1989e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1990e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1991e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1992e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1993968e78ddSHaggai Eran 1994968e78ddSHaggai Eran return cpu_to_be64(result); 1995968e78ddSHaggai Eran } 1996968e78ddSHaggai Eran 1997968e78ddSHaggai Eran static __be64 get_umr_unreg_mr_mask(void) 1998968e78ddSHaggai Eran { 1999968e78ddSHaggai Eran u64 result; 2000968e78ddSHaggai Eran 2001968e78ddSHaggai Eran result = MLX5_MKEY_MASK_FREE; 2002968e78ddSHaggai Eran 2003968e78ddSHaggai Eran return cpu_to_be64(result); 2004968e78ddSHaggai Eran } 2005968e78ddSHaggai Eran 2006968e78ddSHaggai Eran static __be64 get_umr_update_mtt_mask(void) 2007968e78ddSHaggai Eran { 2008968e78ddSHaggai Eran u64 result; 2009968e78ddSHaggai Eran 2010968e78ddSHaggai Eran result = MLX5_MKEY_MASK_FREE; 2011968e78ddSHaggai Eran 2012968e78ddSHaggai Eran return cpu_to_be64(result); 2013968e78ddSHaggai Eran } 2014968e78ddSHaggai Eran 2015968e78ddSHaggai Eran static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2016968e78ddSHaggai Eran struct ib_send_wr *wr) 2017968e78ddSHaggai Eran { 2018e622f2f4SChristoph Hellwig struct mlx5_umr_wr *umrwr = umr_wr(wr); 2019968e78ddSHaggai Eran 2020968e78ddSHaggai Eran memset(umr, 0, sizeof(*umr)); 2021968e78ddSHaggai Eran 2022968e78ddSHaggai Eran if (wr->send_flags & MLX5_IB_SEND_UMR_FAIL_IF_FREE) 2023968e78ddSHaggai Eran umr->flags = MLX5_UMR_CHECK_FREE; /* fail if free */ 2024968e78ddSHaggai Eran else 2025968e78ddSHaggai Eran umr->flags = MLX5_UMR_CHECK_NOT_FREE; /* fail if not free */ 2026968e78ddSHaggai Eran 2027968e78ddSHaggai Eran if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) { 2028968e78ddSHaggai Eran umr->klm_octowords = get_klm_octo(umrwr->npages); 2029968e78ddSHaggai Eran if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT) { 2030968e78ddSHaggai Eran umr->mkey_mask = get_umr_update_mtt_mask(); 2031968e78ddSHaggai Eran umr->bsf_octowords = get_klm_octo(umrwr->target.offset); 2032968e78ddSHaggai Eran umr->flags |= MLX5_UMR_TRANSLATION_OFFSET_EN; 2033e126ba97SEli Cohen } else { 2034968e78ddSHaggai Eran umr->mkey_mask = get_umr_reg_mr_mask(); 2035968e78ddSHaggai Eran } 2036968e78ddSHaggai Eran } else { 2037968e78ddSHaggai Eran umr->mkey_mask = get_umr_unreg_mr_mask(); 2038e126ba97SEli Cohen } 2039e126ba97SEli Cohen 2040e126ba97SEli Cohen if (!wr->num_sge) 2041968e78ddSHaggai Eran umr->flags |= MLX5_UMR_INLINE; 2042e126ba97SEli Cohen } 2043e126ba97SEli Cohen 2044e126ba97SEli Cohen static u8 get_umr_flags(int acc) 2045e126ba97SEli Cohen { 2046e126ba97SEli Cohen return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 2047e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 2048e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 2049e126ba97SEli Cohen (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 20502ac45934SSagi Grimberg MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN; 2051e126ba97SEli Cohen } 2052e126ba97SEli Cohen 20538a187ee5SSagi Grimberg static void set_reg_mkey_seg(struct mlx5_mkey_seg *seg, 20548a187ee5SSagi Grimberg struct mlx5_ib_mr *mr, 20558a187ee5SSagi Grimberg u32 key, int access) 20568a187ee5SSagi Grimberg { 20578a187ee5SSagi Grimberg int ndescs = ALIGN(mr->ndescs, 8) >> 1; 20588a187ee5SSagi Grimberg 20598a187ee5SSagi Grimberg memset(seg, 0, sizeof(*seg)); 20608a187ee5SSagi Grimberg seg->flags = get_umr_flags(access) | MLX5_ACCESS_MODE_MTT; 20618a187ee5SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((key & 0xff) | 0xffffff00); 20628a187ee5SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL); 20638a187ee5SSagi Grimberg seg->start_addr = cpu_to_be64(mr->ibmr.iova); 20648a187ee5SSagi Grimberg seg->len = cpu_to_be64(mr->ibmr.length); 20658a187ee5SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(ndescs); 20668a187ee5SSagi Grimberg seg->log2_page_size = ilog2(mr->ibmr.page_size); 20678a187ee5SSagi Grimberg } 20688a187ee5SSagi Grimberg 2069dd01e66aSSagi Grimberg static void set_linv_mkey_seg(struct mlx5_mkey_seg *seg) 2070e126ba97SEli Cohen { 2071e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 2072968e78ddSHaggai Eran seg->status = MLX5_MKEY_STATUS_FREE; 2073e126ba97SEli Cohen } 2074e126ba97SEli Cohen 2075e126ba97SEli Cohen static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr) 2076e126ba97SEli Cohen { 2077e622f2f4SChristoph Hellwig struct mlx5_umr_wr *umrwr = umr_wr(wr); 2078968e78ddSHaggai Eran 2079e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 2080e126ba97SEli Cohen if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) { 2081968e78ddSHaggai Eran seg->status = MLX5_MKEY_STATUS_FREE; 2082e126ba97SEli Cohen return; 2083e126ba97SEli Cohen } 2084e126ba97SEli Cohen 2085968e78ddSHaggai Eran seg->flags = convert_access(umrwr->access_flags); 2086968e78ddSHaggai Eran if (!(wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT)) { 2087968e78ddSHaggai Eran seg->flags_pd = cpu_to_be32(to_mpd(umrwr->pd)->pdn); 2088968e78ddSHaggai Eran seg->start_addr = cpu_to_be64(umrwr->target.virt_addr); 2089968e78ddSHaggai Eran } 2090968e78ddSHaggai Eran seg->len = cpu_to_be64(umrwr->length); 2091968e78ddSHaggai Eran seg->log2_page_size = umrwr->page_shift; 2092746b5583SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 | 2093968e78ddSHaggai Eran mlx5_mkey_variant(umrwr->mkey)); 2094e126ba97SEli Cohen } 2095e126ba97SEli Cohen 20968a187ee5SSagi Grimberg static void set_reg_data_seg(struct mlx5_wqe_data_seg *dseg, 20978a187ee5SSagi Grimberg struct mlx5_ib_mr *mr, 20988a187ee5SSagi Grimberg struct mlx5_ib_pd *pd) 20998a187ee5SSagi Grimberg { 21008a187ee5SSagi Grimberg int bcount = mr->desc_size * mr->ndescs; 21018a187ee5SSagi Grimberg 21028a187ee5SSagi Grimberg dseg->addr = cpu_to_be64(mr->desc_map); 21038a187ee5SSagi Grimberg dseg->byte_count = cpu_to_be32(ALIGN(bcount, 64)); 21048a187ee5SSagi Grimberg dseg->lkey = cpu_to_be32(pd->ibpd.local_dma_lkey); 21058a187ee5SSagi Grimberg } 21068a187ee5SSagi Grimberg 2107e126ba97SEli Cohen static __be32 send_ieth(struct ib_send_wr *wr) 2108e126ba97SEli Cohen { 2109e126ba97SEli Cohen switch (wr->opcode) { 2110e126ba97SEli Cohen case IB_WR_SEND_WITH_IMM: 2111e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2112e126ba97SEli Cohen return wr->ex.imm_data; 2113e126ba97SEli Cohen 2114e126ba97SEli Cohen case IB_WR_SEND_WITH_INV: 2115e126ba97SEli Cohen return cpu_to_be32(wr->ex.invalidate_rkey); 2116e126ba97SEli Cohen 2117e126ba97SEli Cohen default: 2118e126ba97SEli Cohen return 0; 2119e126ba97SEli Cohen } 2120e126ba97SEli Cohen } 2121e126ba97SEli Cohen 2122e126ba97SEli Cohen static u8 calc_sig(void *wqe, int size) 2123e126ba97SEli Cohen { 2124e126ba97SEli Cohen u8 *p = wqe; 2125e126ba97SEli Cohen u8 res = 0; 2126e126ba97SEli Cohen int i; 2127e126ba97SEli Cohen 2128e126ba97SEli Cohen for (i = 0; i < size; i++) 2129e126ba97SEli Cohen res ^= p[i]; 2130e126ba97SEli Cohen 2131e126ba97SEli Cohen return ~res; 2132e126ba97SEli Cohen } 2133e126ba97SEli Cohen 2134e126ba97SEli Cohen static u8 wq_sig(void *wqe) 2135e126ba97SEli Cohen { 2136e126ba97SEli Cohen return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4); 2137e126ba97SEli Cohen } 2138e126ba97SEli Cohen 2139e126ba97SEli Cohen static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr, 2140e126ba97SEli Cohen void *wqe, int *sz) 2141e126ba97SEli Cohen { 2142e126ba97SEli Cohen struct mlx5_wqe_inline_seg *seg; 2143e126ba97SEli Cohen void *qend = qp->sq.qend; 2144e126ba97SEli Cohen void *addr; 2145e126ba97SEli Cohen int inl = 0; 2146e126ba97SEli Cohen int copy; 2147e126ba97SEli Cohen int len; 2148e126ba97SEli Cohen int i; 2149e126ba97SEli Cohen 2150e126ba97SEli Cohen seg = wqe; 2151e126ba97SEli Cohen wqe += sizeof(*seg); 2152e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) { 2153e126ba97SEli Cohen addr = (void *)(unsigned long)(wr->sg_list[i].addr); 2154e126ba97SEli Cohen len = wr->sg_list[i].length; 2155e126ba97SEli Cohen inl += len; 2156e126ba97SEli Cohen 2157e126ba97SEli Cohen if (unlikely(inl > qp->max_inline_data)) 2158e126ba97SEli Cohen return -ENOMEM; 2159e126ba97SEli Cohen 2160e126ba97SEli Cohen if (unlikely(wqe + len > qend)) { 2161e126ba97SEli Cohen copy = qend - wqe; 2162e126ba97SEli Cohen memcpy(wqe, addr, copy); 2163e126ba97SEli Cohen addr += copy; 2164e126ba97SEli Cohen len -= copy; 2165e126ba97SEli Cohen wqe = mlx5_get_send_wqe(qp, 0); 2166e126ba97SEli Cohen } 2167e126ba97SEli Cohen memcpy(wqe, addr, len); 2168e126ba97SEli Cohen wqe += len; 2169e126ba97SEli Cohen } 2170e126ba97SEli Cohen 2171e126ba97SEli Cohen seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG); 2172e126ba97SEli Cohen 2173e126ba97SEli Cohen *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16; 2174e126ba97SEli Cohen 2175e126ba97SEli Cohen return 0; 2176e126ba97SEli Cohen } 2177e126ba97SEli Cohen 2178e6631814SSagi Grimberg static u16 prot_field_size(enum ib_signature_type type) 2179e6631814SSagi Grimberg { 2180e6631814SSagi Grimberg switch (type) { 2181e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2182e6631814SSagi Grimberg return MLX5_DIF_SIZE; 2183e6631814SSagi Grimberg default: 2184e6631814SSagi Grimberg return 0; 2185e6631814SSagi Grimberg } 2186e6631814SSagi Grimberg } 2187e6631814SSagi Grimberg 2188e6631814SSagi Grimberg static u8 bs_selector(int block_size) 2189e6631814SSagi Grimberg { 2190e6631814SSagi Grimberg switch (block_size) { 2191e6631814SSagi Grimberg case 512: return 0x1; 2192e6631814SSagi Grimberg case 520: return 0x2; 2193e6631814SSagi Grimberg case 4096: return 0x3; 2194e6631814SSagi Grimberg case 4160: return 0x4; 2195e6631814SSagi Grimberg case 1073741824: return 0x5; 2196e6631814SSagi Grimberg default: return 0; 2197e6631814SSagi Grimberg } 2198e6631814SSagi Grimberg } 2199e6631814SSagi Grimberg 220078eda2bbSSagi Grimberg static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain, 2201142537f4SSagi Grimberg struct mlx5_bsf_inl *inl) 2202e6631814SSagi Grimberg { 2203142537f4SSagi Grimberg /* Valid inline section and allow BSF refresh */ 2204142537f4SSagi Grimberg inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID | 2205142537f4SSagi Grimberg MLX5_BSF_REFRESH_DIF); 2206142537f4SSagi Grimberg inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag); 2207142537f4SSagi Grimberg inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag); 2208142537f4SSagi Grimberg /* repeating block */ 2209142537f4SSagi Grimberg inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK; 2210142537f4SSagi Grimberg inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ? 2211142537f4SSagi Grimberg MLX5_DIF_CRC : MLX5_DIF_IPCS; 2212e6631814SSagi Grimberg 221378eda2bbSSagi Grimberg if (domain->sig.dif.ref_remap) 221478eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG; 2215e6631814SSagi Grimberg 221678eda2bbSSagi Grimberg if (domain->sig.dif.app_escape) { 221778eda2bbSSagi Grimberg if (domain->sig.dif.ref_escape) 221878eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE; 221978eda2bbSSagi Grimberg else 222078eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE; 2221e6631814SSagi Grimberg } 2222e6631814SSagi Grimberg 222378eda2bbSSagi Grimberg inl->dif_app_bitmask_check = 222478eda2bbSSagi Grimberg cpu_to_be16(domain->sig.dif.apptag_check_mask); 2225e6631814SSagi Grimberg } 2226e6631814SSagi Grimberg 2227e6631814SSagi Grimberg static int mlx5_set_bsf(struct ib_mr *sig_mr, 2228e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs, 2229e6631814SSagi Grimberg struct mlx5_bsf *bsf, u32 data_size) 2230e6631814SSagi Grimberg { 2231e6631814SSagi Grimberg struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig; 2232e6631814SSagi Grimberg struct mlx5_bsf_basic *basic = &bsf->basic; 2233e6631814SSagi Grimberg struct ib_sig_domain *mem = &sig_attrs->mem; 2234e6631814SSagi Grimberg struct ib_sig_domain *wire = &sig_attrs->wire; 2235e6631814SSagi Grimberg 2236c7f44fbdSSagi Grimberg memset(bsf, 0, sizeof(*bsf)); 2237e6631814SSagi Grimberg 2238142537f4SSagi Grimberg /* Basic + Extended + Inline */ 2239142537f4SSagi Grimberg basic->bsf_size_sbs = 1 << 7; 2240e6631814SSagi Grimberg /* Input domain check byte mask */ 2241e6631814SSagi Grimberg basic->check_byte_mask = sig_attrs->check_mask; 224278eda2bbSSagi Grimberg basic->raw_data_size = cpu_to_be32(data_size); 224378eda2bbSSagi Grimberg 224478eda2bbSSagi Grimberg /* Memory domain */ 224578eda2bbSSagi Grimberg switch (sig_attrs->mem.sig_type) { 224678eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 224778eda2bbSSagi Grimberg break; 224878eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 224978eda2bbSSagi Grimberg basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval); 225078eda2bbSSagi Grimberg basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx); 225178eda2bbSSagi Grimberg mlx5_fill_inl_bsf(mem, &bsf->m_inl); 225278eda2bbSSagi Grimberg break; 225378eda2bbSSagi Grimberg default: 225478eda2bbSSagi Grimberg return -EINVAL; 225578eda2bbSSagi Grimberg } 225678eda2bbSSagi Grimberg 225778eda2bbSSagi Grimberg /* Wire domain */ 225878eda2bbSSagi Grimberg switch (sig_attrs->wire.sig_type) { 225978eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 226078eda2bbSSagi Grimberg break; 226178eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2262e6631814SSagi Grimberg if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval && 226378eda2bbSSagi Grimberg mem->sig_type == wire->sig_type) { 2264e6631814SSagi Grimberg /* Same block structure */ 2265142537f4SSagi Grimberg basic->bsf_size_sbs |= 1 << 4; 2266e6631814SSagi Grimberg if (mem->sig.dif.bg_type == wire->sig.dif.bg_type) 2267fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK; 2268c7f44fbdSSagi Grimberg if (mem->sig.dif.app_tag == wire->sig.dif.app_tag) 2269fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK; 2270c7f44fbdSSagi Grimberg if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag) 2271fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK; 2272e6631814SSagi Grimberg } else 2273e6631814SSagi Grimberg basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval); 2274e6631814SSagi Grimberg 2275142537f4SSagi Grimberg basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx); 227678eda2bbSSagi Grimberg mlx5_fill_inl_bsf(wire, &bsf->w_inl); 2277e6631814SSagi Grimberg break; 2278e6631814SSagi Grimberg default: 2279e6631814SSagi Grimberg return -EINVAL; 2280e6631814SSagi Grimberg } 2281e6631814SSagi Grimberg 2282e6631814SSagi Grimberg return 0; 2283e6631814SSagi Grimberg } 2284e6631814SSagi Grimberg 2285e622f2f4SChristoph Hellwig static int set_sig_data_segment(struct ib_sig_handover_wr *wr, 2286e622f2f4SChristoph Hellwig struct mlx5_ib_qp *qp, void **seg, int *size) 2287e6631814SSagi Grimberg { 2288e622f2f4SChristoph Hellwig struct ib_sig_attrs *sig_attrs = wr->sig_attrs; 2289e622f2f4SChristoph Hellwig struct ib_mr *sig_mr = wr->sig_mr; 2290e6631814SSagi Grimberg struct mlx5_bsf *bsf; 2291e622f2f4SChristoph Hellwig u32 data_len = wr->wr.sg_list->length; 2292e622f2f4SChristoph Hellwig u32 data_key = wr->wr.sg_list->lkey; 2293e622f2f4SChristoph Hellwig u64 data_va = wr->wr.sg_list->addr; 2294e6631814SSagi Grimberg int ret; 2295e6631814SSagi Grimberg int wqe_size; 2296e6631814SSagi Grimberg 2297e622f2f4SChristoph Hellwig if (!wr->prot || 2298e622f2f4SChristoph Hellwig (data_key == wr->prot->lkey && 2299e622f2f4SChristoph Hellwig data_va == wr->prot->addr && 2300e622f2f4SChristoph Hellwig data_len == wr->prot->length)) { 2301e6631814SSagi Grimberg /** 2302e6631814SSagi Grimberg * Source domain doesn't contain signature information 23035c273b16SSagi Grimberg * or data and protection are interleaved in memory. 2304e6631814SSagi Grimberg * So need construct: 2305e6631814SSagi Grimberg * ------------------ 2306e6631814SSagi Grimberg * | data_klm | 2307e6631814SSagi Grimberg * ------------------ 2308e6631814SSagi Grimberg * | BSF | 2309e6631814SSagi Grimberg * ------------------ 2310e6631814SSagi Grimberg **/ 2311e6631814SSagi Grimberg struct mlx5_klm *data_klm = *seg; 2312e6631814SSagi Grimberg 2313e6631814SSagi Grimberg data_klm->bcount = cpu_to_be32(data_len); 2314e6631814SSagi Grimberg data_klm->key = cpu_to_be32(data_key); 2315e6631814SSagi Grimberg data_klm->va = cpu_to_be64(data_va); 2316e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*data_klm), 64); 2317e6631814SSagi Grimberg } else { 2318e6631814SSagi Grimberg /** 2319e6631814SSagi Grimberg * Source domain contains signature information 2320e6631814SSagi Grimberg * So need construct a strided block format: 2321e6631814SSagi Grimberg * --------------------------- 2322e6631814SSagi Grimberg * | stride_block_ctrl | 2323e6631814SSagi Grimberg * --------------------------- 2324e6631814SSagi Grimberg * | data_klm | 2325e6631814SSagi Grimberg * --------------------------- 2326e6631814SSagi Grimberg * | prot_klm | 2327e6631814SSagi Grimberg * --------------------------- 2328e6631814SSagi Grimberg * | BSF | 2329e6631814SSagi Grimberg * --------------------------- 2330e6631814SSagi Grimberg **/ 2331e6631814SSagi Grimberg struct mlx5_stride_block_ctrl_seg *sblock_ctrl; 2332e6631814SSagi Grimberg struct mlx5_stride_block_entry *data_sentry; 2333e6631814SSagi Grimberg struct mlx5_stride_block_entry *prot_sentry; 2334e622f2f4SChristoph Hellwig u32 prot_key = wr->prot->lkey; 2335e622f2f4SChristoph Hellwig u64 prot_va = wr->prot->addr; 2336e6631814SSagi Grimberg u16 block_size = sig_attrs->mem.sig.dif.pi_interval; 2337e6631814SSagi Grimberg int prot_size; 2338e6631814SSagi Grimberg 2339e6631814SSagi Grimberg sblock_ctrl = *seg; 2340e6631814SSagi Grimberg data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl); 2341e6631814SSagi Grimberg prot_sentry = (void *)data_sentry + sizeof(*data_sentry); 2342e6631814SSagi Grimberg 2343e6631814SSagi Grimberg prot_size = prot_field_size(sig_attrs->mem.sig_type); 2344e6631814SSagi Grimberg if (!prot_size) { 2345e6631814SSagi Grimberg pr_err("Bad block size given: %u\n", block_size); 2346e6631814SSagi Grimberg return -EINVAL; 2347e6631814SSagi Grimberg } 2348e6631814SSagi Grimberg sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size + 2349e6631814SSagi Grimberg prot_size); 2350e6631814SSagi Grimberg sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP); 2351e6631814SSagi Grimberg sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size); 2352e6631814SSagi Grimberg sblock_ctrl->num_entries = cpu_to_be16(2); 2353e6631814SSagi Grimberg 2354e6631814SSagi Grimberg data_sentry->bcount = cpu_to_be16(block_size); 2355e6631814SSagi Grimberg data_sentry->key = cpu_to_be32(data_key); 2356e6631814SSagi Grimberg data_sentry->va = cpu_to_be64(data_va); 23575c273b16SSagi Grimberg data_sentry->stride = cpu_to_be16(block_size); 23585c273b16SSagi Grimberg 2359e6631814SSagi Grimberg prot_sentry->bcount = cpu_to_be16(prot_size); 2360e6631814SSagi Grimberg prot_sentry->key = cpu_to_be32(prot_key); 2361e6631814SSagi Grimberg prot_sentry->va = cpu_to_be64(prot_va); 2362e6631814SSagi Grimberg prot_sentry->stride = cpu_to_be16(prot_size); 23635c273b16SSagi Grimberg 2364e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) + 2365e6631814SSagi Grimberg sizeof(*prot_sentry), 64); 2366e6631814SSagi Grimberg } 2367e6631814SSagi Grimberg 2368e6631814SSagi Grimberg *seg += wqe_size; 2369e6631814SSagi Grimberg *size += wqe_size / 16; 2370e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2371e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2372e6631814SSagi Grimberg 2373e6631814SSagi Grimberg bsf = *seg; 2374e6631814SSagi Grimberg ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len); 2375e6631814SSagi Grimberg if (ret) 2376e6631814SSagi Grimberg return -EINVAL; 2377e6631814SSagi Grimberg 2378e6631814SSagi Grimberg *seg += sizeof(*bsf); 2379e6631814SSagi Grimberg *size += sizeof(*bsf) / 16; 2380e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2381e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2382e6631814SSagi Grimberg 2383e6631814SSagi Grimberg return 0; 2384e6631814SSagi Grimberg } 2385e6631814SSagi Grimberg 2386e6631814SSagi Grimberg static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg, 2387e622f2f4SChristoph Hellwig struct ib_sig_handover_wr *wr, u32 nelements, 2388e6631814SSagi Grimberg u32 length, u32 pdn) 2389e6631814SSagi Grimberg { 2390e622f2f4SChristoph Hellwig struct ib_mr *sig_mr = wr->sig_mr; 2391e6631814SSagi Grimberg u32 sig_key = sig_mr->rkey; 2392d5436ba0SSagi Grimberg u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1; 2393e6631814SSagi Grimberg 2394e6631814SSagi Grimberg memset(seg, 0, sizeof(*seg)); 2395e6631814SSagi Grimberg 2396e622f2f4SChristoph Hellwig seg->flags = get_umr_flags(wr->access_flags) | 2397e6631814SSagi Grimberg MLX5_ACCESS_MODE_KLM; 2398e6631814SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00); 2399d5436ba0SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 | 2400e6631814SSagi Grimberg MLX5_MKEY_BSF_EN | pdn); 2401e6631814SSagi Grimberg seg->len = cpu_to_be64(length); 2402e6631814SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements))); 2403e6631814SSagi Grimberg seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE); 2404e6631814SSagi Grimberg } 2405e6631814SSagi Grimberg 2406e6631814SSagi Grimberg static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2407e622f2f4SChristoph Hellwig u32 nelements) 2408e6631814SSagi Grimberg { 2409e6631814SSagi Grimberg memset(umr, 0, sizeof(*umr)); 2410e6631814SSagi Grimberg 2411e6631814SSagi Grimberg umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE; 2412e6631814SSagi Grimberg umr->klm_octowords = get_klm_octo(nelements); 2413e6631814SSagi Grimberg umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE); 2414e6631814SSagi Grimberg umr->mkey_mask = sig_mkey_mask(); 2415e6631814SSagi Grimberg } 2416e6631814SSagi Grimberg 2417e6631814SSagi Grimberg 2418e622f2f4SChristoph Hellwig static int set_sig_umr_wr(struct ib_send_wr *send_wr, struct mlx5_ib_qp *qp, 2419e6631814SSagi Grimberg void **seg, int *size) 2420e6631814SSagi Grimberg { 2421e622f2f4SChristoph Hellwig struct ib_sig_handover_wr *wr = sig_handover_wr(send_wr); 2422e622f2f4SChristoph Hellwig struct mlx5_ib_mr *sig_mr = to_mmr(wr->sig_mr); 2423e6631814SSagi Grimberg u32 pdn = get_pd(qp)->pdn; 2424e6631814SSagi Grimberg u32 klm_oct_size; 2425e6631814SSagi Grimberg int region_len, ret; 2426e6631814SSagi Grimberg 2427e622f2f4SChristoph Hellwig if (unlikely(wr->wr.num_sge != 1) || 2428e622f2f4SChristoph Hellwig unlikely(wr->access_flags & IB_ACCESS_REMOTE_ATOMIC) || 2429d5436ba0SSagi Grimberg unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) || 2430d5436ba0SSagi Grimberg unlikely(!sig_mr->sig->sig_status_checked)) 2431e6631814SSagi Grimberg return -EINVAL; 2432e6631814SSagi Grimberg 2433e6631814SSagi Grimberg /* length of the protected region, data + protection */ 2434e622f2f4SChristoph Hellwig region_len = wr->wr.sg_list->length; 2435e622f2f4SChristoph Hellwig if (wr->prot && 2436e622f2f4SChristoph Hellwig (wr->prot->lkey != wr->wr.sg_list->lkey || 2437e622f2f4SChristoph Hellwig wr->prot->addr != wr->wr.sg_list->addr || 2438e622f2f4SChristoph Hellwig wr->prot->length != wr->wr.sg_list->length)) 2439e622f2f4SChristoph Hellwig region_len += wr->prot->length; 2440e6631814SSagi Grimberg 2441e6631814SSagi Grimberg /** 2442e6631814SSagi Grimberg * KLM octoword size - if protection was provided 2443e6631814SSagi Grimberg * then we use strided block format (3 octowords), 2444e6631814SSagi Grimberg * else we use single KLM (1 octoword) 2445e6631814SSagi Grimberg **/ 2446e622f2f4SChristoph Hellwig klm_oct_size = wr->prot ? 3 : 1; 2447e6631814SSagi Grimberg 2448e622f2f4SChristoph Hellwig set_sig_umr_segment(*seg, klm_oct_size); 2449e6631814SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2450e6631814SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2451e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2452e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2453e6631814SSagi Grimberg 2454e6631814SSagi Grimberg set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn); 2455e6631814SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 2456e6631814SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 2457e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2458e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2459e6631814SSagi Grimberg 2460e6631814SSagi Grimberg ret = set_sig_data_segment(wr, qp, seg, size); 2461e6631814SSagi Grimberg if (ret) 2462e6631814SSagi Grimberg return ret; 2463e6631814SSagi Grimberg 2464d5436ba0SSagi Grimberg sig_mr->sig->sig_status_checked = false; 2465e6631814SSagi Grimberg return 0; 2466e6631814SSagi Grimberg } 2467e6631814SSagi Grimberg 2468e6631814SSagi Grimberg static int set_psv_wr(struct ib_sig_domain *domain, 2469e6631814SSagi Grimberg u32 psv_idx, void **seg, int *size) 2470e6631814SSagi Grimberg { 2471e6631814SSagi Grimberg struct mlx5_seg_set_psv *psv_seg = *seg; 2472e6631814SSagi Grimberg 2473e6631814SSagi Grimberg memset(psv_seg, 0, sizeof(*psv_seg)); 2474e6631814SSagi Grimberg psv_seg->psv_num = cpu_to_be32(psv_idx); 2475e6631814SSagi Grimberg switch (domain->sig_type) { 247678eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 247778eda2bbSSagi Grimberg break; 2478e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2479e6631814SSagi Grimberg psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 | 2480e6631814SSagi Grimberg domain->sig.dif.app_tag); 2481e6631814SSagi Grimberg psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag); 2482e6631814SSagi Grimberg break; 2483e6631814SSagi Grimberg default: 2484e6631814SSagi Grimberg pr_err("Bad signature type given.\n"); 2485e6631814SSagi Grimberg return 1; 2486e6631814SSagi Grimberg } 2487e6631814SSagi Grimberg 248878eda2bbSSagi Grimberg *seg += sizeof(*psv_seg); 248978eda2bbSSagi Grimberg *size += sizeof(*psv_seg) / 16; 249078eda2bbSSagi Grimberg 2491e6631814SSagi Grimberg return 0; 2492e6631814SSagi Grimberg } 2493e6631814SSagi Grimberg 24948a187ee5SSagi Grimberg static int set_reg_wr(struct mlx5_ib_qp *qp, 24958a187ee5SSagi Grimberg struct ib_reg_wr *wr, 24968a187ee5SSagi Grimberg void **seg, int *size) 24978a187ee5SSagi Grimberg { 24988a187ee5SSagi Grimberg struct mlx5_ib_mr *mr = to_mmr(wr->mr); 24998a187ee5SSagi Grimberg struct mlx5_ib_pd *pd = to_mpd(qp->ibqp.pd); 25008a187ee5SSagi Grimberg 25018a187ee5SSagi Grimberg if (unlikely(wr->wr.send_flags & IB_SEND_INLINE)) { 25028a187ee5SSagi Grimberg mlx5_ib_warn(to_mdev(qp->ibqp.device), 25038a187ee5SSagi Grimberg "Invalid IB_SEND_INLINE send flag\n"); 25048a187ee5SSagi Grimberg return -EINVAL; 25058a187ee5SSagi Grimberg } 25068a187ee5SSagi Grimberg 25078a187ee5SSagi Grimberg set_reg_umr_seg(*seg, mr); 25088a187ee5SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 25098a187ee5SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 25108a187ee5SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 25118a187ee5SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 25128a187ee5SSagi Grimberg 25138a187ee5SSagi Grimberg set_reg_mkey_seg(*seg, mr, wr->key, wr->access); 25148a187ee5SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 25158a187ee5SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 25168a187ee5SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 25178a187ee5SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 25188a187ee5SSagi Grimberg 25198a187ee5SSagi Grimberg set_reg_data_seg(*seg, mr, pd); 25208a187ee5SSagi Grimberg *seg += sizeof(struct mlx5_wqe_data_seg); 25218a187ee5SSagi Grimberg *size += (sizeof(struct mlx5_wqe_data_seg) / 16); 25228a187ee5SSagi Grimberg 25238a187ee5SSagi Grimberg return 0; 25248a187ee5SSagi Grimberg } 25258a187ee5SSagi Grimberg 2526dd01e66aSSagi Grimberg static void set_linv_wr(struct mlx5_ib_qp *qp, void **seg, int *size) 2527e126ba97SEli Cohen { 2528dd01e66aSSagi Grimberg set_linv_umr_seg(*seg); 2529e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2530e126ba97SEli Cohen *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2531e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2532e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2533dd01e66aSSagi Grimberg set_linv_mkey_seg(*seg); 2534e126ba97SEli Cohen *seg += sizeof(struct mlx5_mkey_seg); 2535e126ba97SEli Cohen *size += sizeof(struct mlx5_mkey_seg) / 16; 2536e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2537e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2538e126ba97SEli Cohen } 2539e126ba97SEli Cohen 2540e126ba97SEli Cohen static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16) 2541e126ba97SEli Cohen { 2542e126ba97SEli Cohen __be32 *p = NULL; 2543e126ba97SEli Cohen int tidx = idx; 2544e126ba97SEli Cohen int i, j; 2545e126ba97SEli Cohen 2546e126ba97SEli Cohen pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx)); 2547e126ba97SEli Cohen for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) { 2548e126ba97SEli Cohen if ((i & 0xf) == 0) { 2549e126ba97SEli Cohen void *buf = mlx5_get_send_wqe(qp, tidx); 2550e126ba97SEli Cohen tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1); 2551e126ba97SEli Cohen p = buf; 2552e126ba97SEli Cohen j = 0; 2553e126ba97SEli Cohen } 2554e126ba97SEli Cohen pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]), 2555e126ba97SEli Cohen be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]), 2556e126ba97SEli Cohen be32_to_cpu(p[j + 3])); 2557e126ba97SEli Cohen } 2558e126ba97SEli Cohen } 2559e126ba97SEli Cohen 2560e126ba97SEli Cohen static void mlx5_bf_copy(u64 __iomem *dst, u64 *src, 2561e126ba97SEli Cohen unsigned bytecnt, struct mlx5_ib_qp *qp) 2562e126ba97SEli Cohen { 2563e126ba97SEli Cohen while (bytecnt > 0) { 2564e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2565e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2566e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2567e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2568e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2569e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2570e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2571e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2572e126ba97SEli Cohen bytecnt -= 64; 2573e126ba97SEli Cohen if (unlikely(src == qp->sq.qend)) 2574e126ba97SEli Cohen src = mlx5_get_send_wqe(qp, 0); 2575e126ba97SEli Cohen } 2576e126ba97SEli Cohen } 2577e126ba97SEli Cohen 2578e126ba97SEli Cohen static u8 get_fence(u8 fence, struct ib_send_wr *wr) 2579e126ba97SEli Cohen { 2580e126ba97SEli Cohen if (unlikely(wr->opcode == IB_WR_LOCAL_INV && 2581e126ba97SEli Cohen wr->send_flags & IB_SEND_FENCE)) 2582e126ba97SEli Cohen return MLX5_FENCE_MODE_STRONG_ORDERING; 2583e126ba97SEli Cohen 2584e126ba97SEli Cohen if (unlikely(fence)) { 2585e126ba97SEli Cohen if (wr->send_flags & IB_SEND_FENCE) 2586e126ba97SEli Cohen return MLX5_FENCE_MODE_SMALL_AND_FENCE; 2587e126ba97SEli Cohen else 2588e126ba97SEli Cohen return fence; 2589e126ba97SEli Cohen 2590e126ba97SEli Cohen } else { 2591e126ba97SEli Cohen return 0; 2592e126ba97SEli Cohen } 2593e126ba97SEli Cohen } 2594e126ba97SEli Cohen 25956e5eadacSSagi Grimberg static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, 25966e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg **ctrl, 25976a4f139aSEli Cohen struct ib_send_wr *wr, unsigned *idx, 25986e5eadacSSagi Grimberg int *size, int nreq) 25996e5eadacSSagi Grimberg { 26006e5eadacSSagi Grimberg int err = 0; 26016e5eadacSSagi Grimberg 26026e5eadacSSagi Grimberg if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { 26036e5eadacSSagi Grimberg err = -ENOMEM; 26046e5eadacSSagi Grimberg return err; 26056e5eadacSSagi Grimberg } 26066e5eadacSSagi Grimberg 26076e5eadacSSagi Grimberg *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); 26086e5eadacSSagi Grimberg *seg = mlx5_get_send_wqe(qp, *idx); 26096e5eadacSSagi Grimberg *ctrl = *seg; 26106e5eadacSSagi Grimberg *(uint32_t *)(*seg + 8) = 0; 26116e5eadacSSagi Grimberg (*ctrl)->imm = send_ieth(wr); 26126e5eadacSSagi Grimberg (*ctrl)->fm_ce_se = qp->sq_signal_bits | 26136e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SIGNALED ? 26146e5eadacSSagi Grimberg MLX5_WQE_CTRL_CQ_UPDATE : 0) | 26156e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SOLICITED ? 26166e5eadacSSagi Grimberg MLX5_WQE_CTRL_SOLICITED : 0); 26176e5eadacSSagi Grimberg 26186e5eadacSSagi Grimberg *seg += sizeof(**ctrl); 26196e5eadacSSagi Grimberg *size = sizeof(**ctrl) / 16; 26206e5eadacSSagi Grimberg 26216e5eadacSSagi Grimberg return err; 26226e5eadacSSagi Grimberg } 26236e5eadacSSagi Grimberg 26246e5eadacSSagi Grimberg static void finish_wqe(struct mlx5_ib_qp *qp, 26256e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg *ctrl, 26266e5eadacSSagi Grimberg u8 size, unsigned idx, u64 wr_id, 26276e5eadacSSagi Grimberg int nreq, u8 fence, u8 next_fence, 26286e5eadacSSagi Grimberg u32 mlx5_opcode) 26296e5eadacSSagi Grimberg { 26306e5eadacSSagi Grimberg u8 opmod = 0; 26316e5eadacSSagi Grimberg 26326e5eadacSSagi Grimberg ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) | 26336e5eadacSSagi Grimberg mlx5_opcode | ((u32)opmod << 24)); 26346e5eadacSSagi Grimberg ctrl->qpn_ds = cpu_to_be32(size | (qp->mqp.qpn << 8)); 26356e5eadacSSagi Grimberg ctrl->fm_ce_se |= fence; 26366e5eadacSSagi Grimberg qp->fm_cache = next_fence; 26376e5eadacSSagi Grimberg if (unlikely(qp->wq_sig)) 26386e5eadacSSagi Grimberg ctrl->signature = wq_sig(ctrl); 26396e5eadacSSagi Grimberg 26406e5eadacSSagi Grimberg qp->sq.wrid[idx] = wr_id; 26416e5eadacSSagi Grimberg qp->sq.w_list[idx].opcode = mlx5_opcode; 26426e5eadacSSagi Grimberg qp->sq.wqe_head[idx] = qp->sq.head + nreq; 26436e5eadacSSagi Grimberg qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB); 26446e5eadacSSagi Grimberg qp->sq.w_list[idx].next = qp->sq.cur_post; 26456e5eadacSSagi Grimberg } 26466e5eadacSSagi Grimberg 26476e5eadacSSagi Grimberg 2648e126ba97SEli Cohen int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 2649e126ba97SEli Cohen struct ib_send_wr **bad_wr) 2650e126ba97SEli Cohen { 2651e126ba97SEli Cohen struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */ 2652e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 2653e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2654e6631814SSagi Grimberg struct mlx5_ib_mr *mr; 2655e126ba97SEli Cohen struct mlx5_wqe_data_seg *dpseg; 2656e126ba97SEli Cohen struct mlx5_wqe_xrc_seg *xrc; 2657e126ba97SEli Cohen struct mlx5_bf *bf = qp->bf; 2658e126ba97SEli Cohen int uninitialized_var(size); 2659e126ba97SEli Cohen void *qend = qp->sq.qend; 2660e126ba97SEli Cohen unsigned long flags; 2661e126ba97SEli Cohen unsigned idx; 2662e126ba97SEli Cohen int err = 0; 2663e126ba97SEli Cohen int inl = 0; 2664e126ba97SEli Cohen int num_sge; 2665e126ba97SEli Cohen void *seg; 2666e126ba97SEli Cohen int nreq; 2667e126ba97SEli Cohen int i; 2668e126ba97SEli Cohen u8 next_fence = 0; 2669e126ba97SEli Cohen u8 fence; 2670e126ba97SEli Cohen 2671e126ba97SEli Cohen spin_lock_irqsave(&qp->sq.lock, flags); 2672e126ba97SEli Cohen 2673e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2674a8f731ebSFabian Frederick if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) { 2675e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2676e126ba97SEli Cohen err = -EINVAL; 2677e126ba97SEli Cohen *bad_wr = wr; 2678e126ba97SEli Cohen goto out; 2679e126ba97SEli Cohen } 2680e126ba97SEli Cohen 2681e126ba97SEli Cohen fence = qp->fm_cache; 2682e126ba97SEli Cohen num_sge = wr->num_sge; 2683e126ba97SEli Cohen if (unlikely(num_sge > qp->sq.max_gs)) { 2684e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2685e126ba97SEli Cohen err = -ENOMEM; 2686e126ba97SEli Cohen *bad_wr = wr; 2687e126ba97SEli Cohen goto out; 2688e126ba97SEli Cohen } 2689e126ba97SEli Cohen 26906e5eadacSSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq); 26916e5eadacSSagi Grimberg if (err) { 26926e5eadacSSagi Grimberg mlx5_ib_warn(dev, "\n"); 26936e5eadacSSagi Grimberg err = -ENOMEM; 26946e5eadacSSagi Grimberg *bad_wr = wr; 26956e5eadacSSagi Grimberg goto out; 26966e5eadacSSagi Grimberg } 2697e126ba97SEli Cohen 2698e126ba97SEli Cohen switch (ibqp->qp_type) { 2699e126ba97SEli Cohen case IB_QPT_XRC_INI: 2700e126ba97SEli Cohen xrc = seg; 2701e126ba97SEli Cohen seg += sizeof(*xrc); 2702e126ba97SEli Cohen size += sizeof(*xrc) / 16; 2703e126ba97SEli Cohen /* fall through */ 2704e126ba97SEli Cohen case IB_QPT_RC: 2705e126ba97SEli Cohen switch (wr->opcode) { 2706e126ba97SEli Cohen case IB_WR_RDMA_READ: 2707e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2708e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2709e622f2f4SChristoph Hellwig set_raddr_seg(seg, rdma_wr(wr)->remote_addr, 2710e622f2f4SChristoph Hellwig rdma_wr(wr)->rkey); 2711e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2712e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2713e126ba97SEli Cohen break; 2714e126ba97SEli Cohen 2715e126ba97SEli Cohen case IB_WR_ATOMIC_CMP_AND_SWP: 2716e126ba97SEli Cohen case IB_WR_ATOMIC_FETCH_AND_ADD: 2717e126ba97SEli Cohen case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: 271881bea28fSEli Cohen mlx5_ib_warn(dev, "Atomic operations are not supported yet\n"); 271981bea28fSEli Cohen err = -ENOSYS; 272081bea28fSEli Cohen *bad_wr = wr; 272181bea28fSEli Cohen goto out; 2722e126ba97SEli Cohen 2723e126ba97SEli Cohen case IB_WR_LOCAL_INV: 2724e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2725e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_LOCAL_INV; 2726e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey); 2727dd01e66aSSagi Grimberg set_linv_wr(qp, &seg, &size); 2728e126ba97SEli Cohen num_sge = 0; 2729e126ba97SEli Cohen break; 2730e126ba97SEli Cohen 27318a187ee5SSagi Grimberg case IB_WR_REG_MR: 27328a187ee5SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 27338a187ee5SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_MR; 27348a187ee5SSagi Grimberg ctrl->imm = cpu_to_be32(reg_wr(wr)->key); 27358a187ee5SSagi Grimberg err = set_reg_wr(qp, reg_wr(wr), &seg, &size); 27368a187ee5SSagi Grimberg if (err) { 27378a187ee5SSagi Grimberg *bad_wr = wr; 27388a187ee5SSagi Grimberg goto out; 27398a187ee5SSagi Grimberg } 27408a187ee5SSagi Grimberg num_sge = 0; 27418a187ee5SSagi Grimberg break; 27428a187ee5SSagi Grimberg 2743e6631814SSagi Grimberg case IB_WR_REG_SIG_MR: 2744e6631814SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR; 2745e622f2f4SChristoph Hellwig mr = to_mmr(sig_handover_wr(wr)->sig_mr); 2746e6631814SSagi Grimberg 2747e6631814SSagi Grimberg ctrl->imm = cpu_to_be32(mr->ibmr.rkey); 2748e6631814SSagi Grimberg err = set_sig_umr_wr(wr, qp, &seg, &size); 2749e6631814SSagi Grimberg if (err) { 2750e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2751e6631814SSagi Grimberg *bad_wr = wr; 2752e6631814SSagi Grimberg goto out; 2753e6631814SSagi Grimberg } 2754e6631814SSagi Grimberg 2755e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2756e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2757e6631814SSagi Grimberg next_fence, MLX5_OPCODE_UMR); 2758e6631814SSagi Grimberg /* 2759e6631814SSagi Grimberg * SET_PSV WQEs are not signaled and solicited 2760e6631814SSagi Grimberg * on error 2761e6631814SSagi Grimberg */ 2762e6631814SSagi Grimberg wr->send_flags &= ~IB_SEND_SIGNALED; 2763e6631814SSagi Grimberg wr->send_flags |= IB_SEND_SOLICITED; 2764e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2765e6631814SSagi Grimberg &idx, &size, nreq); 2766e6631814SSagi Grimberg if (err) { 2767e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2768e6631814SSagi Grimberg err = -ENOMEM; 2769e6631814SSagi Grimberg *bad_wr = wr; 2770e6631814SSagi Grimberg goto out; 2771e6631814SSagi Grimberg } 2772e6631814SSagi Grimberg 2773e622f2f4SChristoph Hellwig err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->mem, 2774e6631814SSagi Grimberg mr->sig->psv_memory.psv_idx, &seg, 2775e6631814SSagi Grimberg &size); 2776e6631814SSagi Grimberg if (err) { 2777e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2778e6631814SSagi Grimberg *bad_wr = wr; 2779e6631814SSagi Grimberg goto out; 2780e6631814SSagi Grimberg } 2781e6631814SSagi Grimberg 2782e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2783e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2784e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2785e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 2786e6631814SSagi Grimberg &idx, &size, nreq); 2787e6631814SSagi Grimberg if (err) { 2788e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2789e6631814SSagi Grimberg err = -ENOMEM; 2790e6631814SSagi Grimberg *bad_wr = wr; 2791e6631814SSagi Grimberg goto out; 2792e6631814SSagi Grimberg } 2793e6631814SSagi Grimberg 2794e6631814SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2795e622f2f4SChristoph Hellwig err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->wire, 2796e6631814SSagi Grimberg mr->sig->psv_wire.psv_idx, &seg, 2797e6631814SSagi Grimberg &size); 2798e6631814SSagi Grimberg if (err) { 2799e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 2800e6631814SSagi Grimberg *bad_wr = wr; 2801e6631814SSagi Grimberg goto out; 2802e6631814SSagi Grimberg } 2803e6631814SSagi Grimberg 2804e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 2805e6631814SSagi Grimberg nreq, get_fence(fence, wr), 2806e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 2807e6631814SSagi Grimberg num_sge = 0; 2808e6631814SSagi Grimberg goto skip_psv; 2809e6631814SSagi Grimberg 2810e126ba97SEli Cohen default: 2811e126ba97SEli Cohen break; 2812e126ba97SEli Cohen } 2813e126ba97SEli Cohen break; 2814e126ba97SEli Cohen 2815e126ba97SEli Cohen case IB_QPT_UC: 2816e126ba97SEli Cohen switch (wr->opcode) { 2817e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2818e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2819e622f2f4SChristoph Hellwig set_raddr_seg(seg, rdma_wr(wr)->remote_addr, 2820e622f2f4SChristoph Hellwig rdma_wr(wr)->rkey); 2821e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2822e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2823e126ba97SEli Cohen break; 2824e126ba97SEli Cohen 2825e126ba97SEli Cohen default: 2826e126ba97SEli Cohen break; 2827e126ba97SEli Cohen } 2828e126ba97SEli Cohen break; 2829e126ba97SEli Cohen 2830e126ba97SEli Cohen case IB_QPT_UD: 2831e126ba97SEli Cohen case IB_QPT_SMI: 2832e126ba97SEli Cohen case IB_QPT_GSI: 2833e126ba97SEli Cohen set_datagram_seg(seg, wr); 2834e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_datagram_seg); 2835e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_datagram_seg) / 16; 2836e126ba97SEli Cohen if (unlikely((seg == qend))) 2837e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2838e126ba97SEli Cohen break; 2839e126ba97SEli Cohen 2840e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 2841e126ba97SEli Cohen if (wr->opcode != MLX5_IB_WR_UMR) { 2842e126ba97SEli Cohen err = -EINVAL; 2843e126ba97SEli Cohen mlx5_ib_warn(dev, "bad opcode\n"); 2844e126ba97SEli Cohen goto out; 2845e126ba97SEli Cohen } 2846e126ba97SEli Cohen qp->sq.wr_data[idx] = MLX5_IB_WR_UMR; 2847e622f2f4SChristoph Hellwig ctrl->imm = cpu_to_be32(umr_wr(wr)->mkey); 2848e126ba97SEli Cohen set_reg_umr_segment(seg, wr); 2849e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2850e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2851e126ba97SEli Cohen if (unlikely((seg == qend))) 2852e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2853e126ba97SEli Cohen set_reg_mkey_segment(seg, wr); 2854e126ba97SEli Cohen seg += sizeof(struct mlx5_mkey_seg); 2855e126ba97SEli Cohen size += sizeof(struct mlx5_mkey_seg) / 16; 2856e126ba97SEli Cohen if (unlikely((seg == qend))) 2857e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2858e126ba97SEli Cohen break; 2859e126ba97SEli Cohen 2860e126ba97SEli Cohen default: 2861e126ba97SEli Cohen break; 2862e126ba97SEli Cohen } 2863e126ba97SEli Cohen 2864e126ba97SEli Cohen if (wr->send_flags & IB_SEND_INLINE && num_sge) { 2865e126ba97SEli Cohen int uninitialized_var(sz); 2866e126ba97SEli Cohen 2867e126ba97SEli Cohen err = set_data_inl_seg(qp, wr, seg, &sz); 2868e126ba97SEli Cohen if (unlikely(err)) { 2869e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2870e126ba97SEli Cohen *bad_wr = wr; 2871e126ba97SEli Cohen goto out; 2872e126ba97SEli Cohen } 2873e126ba97SEli Cohen inl = 1; 2874e126ba97SEli Cohen size += sz; 2875e126ba97SEli Cohen } else { 2876e126ba97SEli Cohen dpseg = seg; 2877e126ba97SEli Cohen for (i = 0; i < num_sge; i++) { 2878e126ba97SEli Cohen if (unlikely(dpseg == qend)) { 2879e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2880e126ba97SEli Cohen dpseg = seg; 2881e126ba97SEli Cohen } 2882e126ba97SEli Cohen if (likely(wr->sg_list[i].length)) { 2883e126ba97SEli Cohen set_data_ptr_seg(dpseg, wr->sg_list + i); 2884e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_data_seg) / 16; 2885e126ba97SEli Cohen dpseg++; 2886e126ba97SEli Cohen } 2887e126ba97SEli Cohen } 2888e126ba97SEli Cohen } 2889e126ba97SEli Cohen 28906e5eadacSSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq, 28916e5eadacSSagi Grimberg get_fence(fence, wr), next_fence, 28926e5eadacSSagi Grimberg mlx5_ib_opcode[wr->opcode]); 2893e6631814SSagi Grimberg skip_psv: 2894e126ba97SEli Cohen if (0) 2895e126ba97SEli Cohen dump_wqe(qp, idx, size); 2896e126ba97SEli Cohen } 2897e126ba97SEli Cohen 2898e126ba97SEli Cohen out: 2899e126ba97SEli Cohen if (likely(nreq)) { 2900e126ba97SEli Cohen qp->sq.head += nreq; 2901e126ba97SEli Cohen 2902e126ba97SEli Cohen /* Make sure that descriptors are written before 2903e126ba97SEli Cohen * updating doorbell record and ringing the doorbell 2904e126ba97SEli Cohen */ 2905e126ba97SEli Cohen wmb(); 2906e126ba97SEli Cohen 2907e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post); 2908e126ba97SEli Cohen 2909ada388f7SEli Cohen /* Make sure doorbell record is visible to the HCA before 2910ada388f7SEli Cohen * we hit doorbell */ 2911ada388f7SEli Cohen wmb(); 2912ada388f7SEli Cohen 2913e126ba97SEli Cohen if (bf->need_lock) 2914e126ba97SEli Cohen spin_lock(&bf->lock); 29156a4f139aSEli Cohen else 29166a4f139aSEli Cohen __acquire(&bf->lock); 2917e126ba97SEli Cohen 2918e126ba97SEli Cohen /* TBD enable WC */ 2919e126ba97SEli Cohen if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) { 2920e126ba97SEli Cohen mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp); 2921e126ba97SEli Cohen /* wc_wmb(); */ 2922e126ba97SEli Cohen } else { 2923e126ba97SEli Cohen mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset, 2924e126ba97SEli Cohen MLX5_GET_DOORBELL_LOCK(&bf->lock32)); 2925e126ba97SEli Cohen /* Make sure doorbells don't leak out of SQ spinlock 2926e126ba97SEli Cohen * and reach the HCA out of order. 2927e126ba97SEli Cohen */ 2928e126ba97SEli Cohen mmiowb(); 2929e126ba97SEli Cohen } 2930e126ba97SEli Cohen bf->offset ^= bf->buf_size; 2931e126ba97SEli Cohen if (bf->need_lock) 2932e126ba97SEli Cohen spin_unlock(&bf->lock); 29336a4f139aSEli Cohen else 29346a4f139aSEli Cohen __release(&bf->lock); 2935e126ba97SEli Cohen } 2936e126ba97SEli Cohen 2937e126ba97SEli Cohen spin_unlock_irqrestore(&qp->sq.lock, flags); 2938e126ba97SEli Cohen 2939e126ba97SEli Cohen return err; 2940e126ba97SEli Cohen } 2941e126ba97SEli Cohen 2942e126ba97SEli Cohen static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size) 2943e126ba97SEli Cohen { 2944e126ba97SEli Cohen sig->signature = calc_sig(sig, size); 2945e126ba97SEli Cohen } 2946e126ba97SEli Cohen 2947e126ba97SEli Cohen int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 2948e126ba97SEli Cohen struct ib_recv_wr **bad_wr) 2949e126ba97SEli Cohen { 2950e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2951e126ba97SEli Cohen struct mlx5_wqe_data_seg *scat; 2952e126ba97SEli Cohen struct mlx5_rwqe_sig *sig; 2953e126ba97SEli Cohen unsigned long flags; 2954e126ba97SEli Cohen int err = 0; 2955e126ba97SEli Cohen int nreq; 2956e126ba97SEli Cohen int ind; 2957e126ba97SEli Cohen int i; 2958e126ba97SEli Cohen 2959e126ba97SEli Cohen spin_lock_irqsave(&qp->rq.lock, flags); 2960e126ba97SEli Cohen 2961e126ba97SEli Cohen ind = qp->rq.head & (qp->rq.wqe_cnt - 1); 2962e126ba97SEli Cohen 2963e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2964e126ba97SEli Cohen if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) { 2965e126ba97SEli Cohen err = -ENOMEM; 2966e126ba97SEli Cohen *bad_wr = wr; 2967e126ba97SEli Cohen goto out; 2968e126ba97SEli Cohen } 2969e126ba97SEli Cohen 2970e126ba97SEli Cohen if (unlikely(wr->num_sge > qp->rq.max_gs)) { 2971e126ba97SEli Cohen err = -EINVAL; 2972e126ba97SEli Cohen *bad_wr = wr; 2973e126ba97SEli Cohen goto out; 2974e126ba97SEli Cohen } 2975e126ba97SEli Cohen 2976e126ba97SEli Cohen scat = get_recv_wqe(qp, ind); 2977e126ba97SEli Cohen if (qp->wq_sig) 2978e126ba97SEli Cohen scat++; 2979e126ba97SEli Cohen 2980e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) 2981e126ba97SEli Cohen set_data_ptr_seg(scat + i, wr->sg_list + i); 2982e126ba97SEli Cohen 2983e126ba97SEli Cohen if (i < qp->rq.max_gs) { 2984e126ba97SEli Cohen scat[i].byte_count = 0; 2985e126ba97SEli Cohen scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY); 2986e126ba97SEli Cohen scat[i].addr = 0; 2987e126ba97SEli Cohen } 2988e126ba97SEli Cohen 2989e126ba97SEli Cohen if (qp->wq_sig) { 2990e126ba97SEli Cohen sig = (struct mlx5_rwqe_sig *)scat; 2991e126ba97SEli Cohen set_sig_seg(sig, (qp->rq.max_gs + 1) << 2); 2992e126ba97SEli Cohen } 2993e126ba97SEli Cohen 2994e126ba97SEli Cohen qp->rq.wrid[ind] = wr->wr_id; 2995e126ba97SEli Cohen 2996e126ba97SEli Cohen ind = (ind + 1) & (qp->rq.wqe_cnt - 1); 2997e126ba97SEli Cohen } 2998e126ba97SEli Cohen 2999e126ba97SEli Cohen out: 3000e126ba97SEli Cohen if (likely(nreq)) { 3001e126ba97SEli Cohen qp->rq.head += nreq; 3002e126ba97SEli Cohen 3003e126ba97SEli Cohen /* Make sure that descriptors are written before 3004e126ba97SEli Cohen * doorbell record. 3005e126ba97SEli Cohen */ 3006e126ba97SEli Cohen wmb(); 3007e126ba97SEli Cohen 3008e126ba97SEli Cohen *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff); 3009e126ba97SEli Cohen } 3010e126ba97SEli Cohen 3011e126ba97SEli Cohen spin_unlock_irqrestore(&qp->rq.lock, flags); 3012e126ba97SEli Cohen 3013e126ba97SEli Cohen return err; 3014e126ba97SEli Cohen } 3015e126ba97SEli Cohen 3016e126ba97SEli Cohen static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state) 3017e126ba97SEli Cohen { 3018e126ba97SEli Cohen switch (mlx5_state) { 3019e126ba97SEli Cohen case MLX5_QP_STATE_RST: return IB_QPS_RESET; 3020e126ba97SEli Cohen case MLX5_QP_STATE_INIT: return IB_QPS_INIT; 3021e126ba97SEli Cohen case MLX5_QP_STATE_RTR: return IB_QPS_RTR; 3022e126ba97SEli Cohen case MLX5_QP_STATE_RTS: return IB_QPS_RTS; 3023e126ba97SEli Cohen case MLX5_QP_STATE_SQ_DRAINING: 3024e126ba97SEli Cohen case MLX5_QP_STATE_SQD: return IB_QPS_SQD; 3025e126ba97SEli Cohen case MLX5_QP_STATE_SQER: return IB_QPS_SQE; 3026e126ba97SEli Cohen case MLX5_QP_STATE_ERR: return IB_QPS_ERR; 3027e126ba97SEli Cohen default: return -1; 3028e126ba97SEli Cohen } 3029e126ba97SEli Cohen } 3030e126ba97SEli Cohen 3031e126ba97SEli Cohen static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state) 3032e126ba97SEli Cohen { 3033e126ba97SEli Cohen switch (mlx5_mig_state) { 3034e126ba97SEli Cohen case MLX5_QP_PM_ARMED: return IB_MIG_ARMED; 3035e126ba97SEli Cohen case MLX5_QP_PM_REARM: return IB_MIG_REARM; 3036e126ba97SEli Cohen case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED; 3037e126ba97SEli Cohen default: return -1; 3038e126ba97SEli Cohen } 3039e126ba97SEli Cohen } 3040e126ba97SEli Cohen 3041e126ba97SEli Cohen static int to_ib_qp_access_flags(int mlx5_flags) 3042e126ba97SEli Cohen { 3043e126ba97SEli Cohen int ib_flags = 0; 3044e126ba97SEli Cohen 3045e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RRE) 3046e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_READ; 3047e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RWE) 3048e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_WRITE; 3049e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RAE) 3050e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_ATOMIC; 3051e126ba97SEli Cohen 3052e126ba97SEli Cohen return ib_flags; 3053e126ba97SEli Cohen } 3054e126ba97SEli Cohen 3055e126ba97SEli Cohen static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr, 3056e126ba97SEli Cohen struct mlx5_qp_path *path) 3057e126ba97SEli Cohen { 30589603b61dSJack Morgenstein struct mlx5_core_dev *dev = ibdev->mdev; 3059e126ba97SEli Cohen 3060e126ba97SEli Cohen memset(ib_ah_attr, 0, sizeof(*ib_ah_attr)); 3061e126ba97SEli Cohen ib_ah_attr->port_num = path->port; 3062e126ba97SEli Cohen 3063c7a08ac7SEli Cohen if (ib_ah_attr->port_num == 0 || 3064938fe83cSSaeed Mahameed ib_ah_attr->port_num > MLX5_CAP_GEN(dev, num_ports)) 3065e126ba97SEli Cohen return; 3066e126ba97SEli Cohen 30672811ba51SAchiad Shochat ib_ah_attr->sl = path->dci_cfi_prio_sl & 0xf; 3068e126ba97SEli Cohen 3069e126ba97SEli Cohen ib_ah_attr->dlid = be16_to_cpu(path->rlid); 3070e126ba97SEli Cohen ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f; 3071e126ba97SEli Cohen ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0; 3072e126ba97SEli Cohen ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0; 3073e126ba97SEli Cohen if (ib_ah_attr->ah_flags) { 3074e126ba97SEli Cohen ib_ah_attr->grh.sgid_index = path->mgid_index; 3075e126ba97SEli Cohen ib_ah_attr->grh.hop_limit = path->hop_limit; 3076e126ba97SEli Cohen ib_ah_attr->grh.traffic_class = 3077e126ba97SEli Cohen (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; 3078e126ba97SEli Cohen ib_ah_attr->grh.flow_label = 3079e126ba97SEli Cohen be32_to_cpu(path->tclass_flowlabel) & 0xfffff; 3080e126ba97SEli Cohen memcpy(ib_ah_attr->grh.dgid.raw, 3081e126ba97SEli Cohen path->rgid, sizeof(ib_ah_attr->grh.dgid.raw)); 3082e126ba97SEli Cohen } 3083e126ba97SEli Cohen } 3084e126ba97SEli Cohen 3085e126ba97SEli Cohen int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 3086e126ba97SEli Cohen struct ib_qp_init_attr *qp_init_attr) 3087e126ba97SEli Cohen { 3088e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 3089e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 3090e126ba97SEli Cohen struct mlx5_query_qp_mbox_out *outb; 3091e126ba97SEli Cohen struct mlx5_qp_context *context; 3092e126ba97SEli Cohen int mlx5_state; 3093e126ba97SEli Cohen int err = 0; 3094e126ba97SEli Cohen 30956aec21f6SHaggai Eran #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 30966aec21f6SHaggai Eran /* 30976aec21f6SHaggai Eran * Wait for any outstanding page faults, in case the user frees memory 30986aec21f6SHaggai Eran * based upon this query's result. 30996aec21f6SHaggai Eran */ 31006aec21f6SHaggai Eran flush_workqueue(mlx5_ib_page_fault_wq); 31016aec21f6SHaggai Eran #endif 31026aec21f6SHaggai Eran 3103e126ba97SEli Cohen mutex_lock(&qp->mutex); 3104e126ba97SEli Cohen outb = kzalloc(sizeof(*outb), GFP_KERNEL); 3105e126ba97SEli Cohen if (!outb) { 3106e126ba97SEli Cohen err = -ENOMEM; 3107e126ba97SEli Cohen goto out; 3108e126ba97SEli Cohen } 3109e126ba97SEli Cohen context = &outb->ctx; 31109603b61dSJack Morgenstein err = mlx5_core_qp_query(dev->mdev, &qp->mqp, outb, sizeof(*outb)); 3111e126ba97SEli Cohen if (err) 3112e126ba97SEli Cohen goto out_free; 3113e126ba97SEli Cohen 3114e126ba97SEli Cohen mlx5_state = be32_to_cpu(context->flags) >> 28; 3115e126ba97SEli Cohen 3116e126ba97SEli Cohen qp->state = to_ib_qp_state(mlx5_state); 3117e126ba97SEli Cohen qp_attr->qp_state = qp->state; 3118e126ba97SEli Cohen qp_attr->path_mtu = context->mtu_msgmax >> 5; 3119e126ba97SEli Cohen qp_attr->path_mig_state = 3120e126ba97SEli Cohen to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3); 3121e126ba97SEli Cohen qp_attr->qkey = be32_to_cpu(context->qkey); 3122e126ba97SEli Cohen qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff; 3123e126ba97SEli Cohen qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff; 3124e126ba97SEli Cohen qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff; 3125e126ba97SEli Cohen qp_attr->qp_access_flags = 3126e126ba97SEli Cohen to_ib_qp_access_flags(be32_to_cpu(context->params2)); 3127e126ba97SEli Cohen 3128e126ba97SEli Cohen if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) { 3129e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); 3130e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); 3131e126ba97SEli Cohen qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f; 3132e126ba97SEli Cohen qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; 3133e126ba97SEli Cohen } 3134e126ba97SEli Cohen 3135e126ba97SEli Cohen qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f; 3136e126ba97SEli Cohen qp_attr->port_num = context->pri_path.port; 3137e126ba97SEli Cohen 3138e126ba97SEli Cohen /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ 3139e126ba97SEli Cohen qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING; 3140e126ba97SEli Cohen 3141e126ba97SEli Cohen qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7); 3142e126ba97SEli Cohen 3143e126ba97SEli Cohen qp_attr->max_dest_rd_atomic = 3144e126ba97SEli Cohen 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); 3145e126ba97SEli Cohen qp_attr->min_rnr_timer = 3146e126ba97SEli Cohen (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; 3147e126ba97SEli Cohen qp_attr->timeout = context->pri_path.ackto_lt >> 3; 3148e126ba97SEli Cohen qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; 3149e126ba97SEli Cohen qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7; 3150e126ba97SEli Cohen qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3; 3151e126ba97SEli Cohen qp_attr->cur_qp_state = qp_attr->qp_state; 3152e126ba97SEli Cohen qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; 3153e126ba97SEli Cohen qp_attr->cap.max_recv_sge = qp->rq.max_gs; 3154e126ba97SEli Cohen 3155e126ba97SEli Cohen if (!ibqp->uobject) { 3156e126ba97SEli Cohen qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; 3157e126ba97SEli Cohen qp_attr->cap.max_send_sge = qp->sq.max_gs; 3158e126ba97SEli Cohen } else { 3159e126ba97SEli Cohen qp_attr->cap.max_send_wr = 0; 3160e126ba97SEli Cohen qp_attr->cap.max_send_sge = 0; 3161e126ba97SEli Cohen } 3162e126ba97SEli Cohen 3163e126ba97SEli Cohen /* We don't support inline sends for kernel QPs (yet), and we 3164e126ba97SEli Cohen * don't know what userspace's value should be. 3165e126ba97SEli Cohen */ 3166e126ba97SEli Cohen qp_attr->cap.max_inline_data = 0; 3167e126ba97SEli Cohen 3168e126ba97SEli Cohen qp_init_attr->cap = qp_attr->cap; 3169e126ba97SEli Cohen 3170e126ba97SEli Cohen qp_init_attr->create_flags = 0; 3171e126ba97SEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 3172e126ba97SEli Cohen qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; 3173e126ba97SEli Cohen 3174051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL) 3175051f2630SLeon Romanovsky qp_init_attr->create_flags |= IB_QP_CREATE_CROSS_CHANNEL; 3176051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_SEND) 3177051f2630SLeon Romanovsky qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_SEND; 3178051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_RECV) 3179051f2630SLeon Romanovsky qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_RECV; 3180051f2630SLeon Romanovsky 3181e126ba97SEli Cohen qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ? 3182e126ba97SEli Cohen IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR; 3183e126ba97SEli Cohen 3184e126ba97SEli Cohen out_free: 3185e126ba97SEli Cohen kfree(outb); 3186e126ba97SEli Cohen 3187e126ba97SEli Cohen out: 3188e126ba97SEli Cohen mutex_unlock(&qp->mutex); 3189e126ba97SEli Cohen return err; 3190e126ba97SEli Cohen } 3191e126ba97SEli Cohen 3192e126ba97SEli Cohen struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 3193e126ba97SEli Cohen struct ib_ucontext *context, 3194e126ba97SEli Cohen struct ib_udata *udata) 3195e126ba97SEli Cohen { 3196e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibdev); 3197e126ba97SEli Cohen struct mlx5_ib_xrcd *xrcd; 3198e126ba97SEli Cohen int err; 3199e126ba97SEli Cohen 3200938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(dev->mdev, xrc)) 3201e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 3202e126ba97SEli Cohen 3203e126ba97SEli Cohen xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL); 3204e126ba97SEli Cohen if (!xrcd) 3205e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3206e126ba97SEli Cohen 32079603b61dSJack Morgenstein err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn); 3208e126ba97SEli Cohen if (err) { 3209e126ba97SEli Cohen kfree(xrcd); 3210e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3211e126ba97SEli Cohen } 3212e126ba97SEli Cohen 3213e126ba97SEli Cohen return &xrcd->ibxrcd; 3214e126ba97SEli Cohen } 3215e126ba97SEli Cohen 3216e126ba97SEli Cohen int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 3217e126ba97SEli Cohen { 3218e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(xrcd->device); 3219e126ba97SEli Cohen u32 xrcdn = to_mxrcd(xrcd)->xrcdn; 3220e126ba97SEli Cohen int err; 3221e126ba97SEli Cohen 32229603b61dSJack Morgenstein err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn); 3223e126ba97SEli Cohen if (err) { 3224e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn); 3225e126ba97SEli Cohen return err; 3226e126ba97SEli Cohen } 3227e126ba97SEli Cohen 3228e126ba97SEli Cohen kfree(xrcd); 3229e126ba97SEli Cohen 3230e126ba97SEli Cohen return 0; 3231e126ba97SEli Cohen } 3232