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, 11919098df2Smajd@mellanox.com void *buffer, u32 length, 12019098df2Smajd@mellanox.com struct mlx5_ib_qp_base *base) 121c1395a2aSHaggai Eran { 122c1395a2aSHaggai Eran struct ib_device *ibdev = qp->ibqp.device; 123c1395a2aSHaggai Eran struct mlx5_ib_dev *dev = to_mdev(ibdev); 124c1395a2aSHaggai Eran struct mlx5_ib_wq *wq = send ? &qp->sq : &qp->rq; 125c1395a2aSHaggai Eran size_t offset; 126c1395a2aSHaggai Eran size_t wq_end; 12719098df2Smajd@mellanox.com struct ib_umem *umem = base->ubuffer.umem; 128c1395a2aSHaggai Eran u32 first_copy_length; 129c1395a2aSHaggai Eran int wqe_length; 130c1395a2aSHaggai Eran int ret; 131c1395a2aSHaggai Eran 132c1395a2aSHaggai Eran if (wq->wqe_cnt == 0) { 133c1395a2aSHaggai Eran mlx5_ib_dbg(dev, "mlx5_ib_read_user_wqe for a QP with wqe_cnt == 0. qp_type: 0x%x\n", 134c1395a2aSHaggai Eran qp->ibqp.qp_type); 135c1395a2aSHaggai Eran return -EINVAL; 136c1395a2aSHaggai Eran } 137c1395a2aSHaggai Eran 138c1395a2aSHaggai Eran offset = wq->offset + ((wqe_index % wq->wqe_cnt) << wq->wqe_shift); 139c1395a2aSHaggai Eran wq_end = wq->offset + (wq->wqe_cnt << wq->wqe_shift); 140c1395a2aSHaggai Eran 141c1395a2aSHaggai Eran if (send && length < sizeof(struct mlx5_wqe_ctrl_seg)) 142c1395a2aSHaggai Eran return -EINVAL; 143c1395a2aSHaggai Eran 144c1395a2aSHaggai Eran if (offset > umem->length || 145c1395a2aSHaggai Eran (send && offset + sizeof(struct mlx5_wqe_ctrl_seg) > umem->length)) 146c1395a2aSHaggai Eran return -EINVAL; 147c1395a2aSHaggai Eran 148c1395a2aSHaggai Eran first_copy_length = min_t(u32, offset + length, wq_end) - offset; 149c1395a2aSHaggai Eran ret = ib_umem_copy_from(buffer, umem, offset, first_copy_length); 150c1395a2aSHaggai Eran if (ret) 151c1395a2aSHaggai Eran return ret; 152c1395a2aSHaggai Eran 153c1395a2aSHaggai Eran if (send) { 154c1395a2aSHaggai Eran struct mlx5_wqe_ctrl_seg *ctrl = buffer; 155c1395a2aSHaggai Eran int ds = be32_to_cpu(ctrl->qpn_ds) & MLX5_WQE_CTRL_DS_MASK; 156c1395a2aSHaggai Eran 157c1395a2aSHaggai Eran wqe_length = ds * MLX5_WQE_DS_UNITS; 158c1395a2aSHaggai Eran } else { 159c1395a2aSHaggai Eran wqe_length = 1 << wq->wqe_shift; 160c1395a2aSHaggai Eran } 161c1395a2aSHaggai Eran 162c1395a2aSHaggai Eran if (wqe_length <= first_copy_length) 163c1395a2aSHaggai Eran return first_copy_length; 164c1395a2aSHaggai Eran 165c1395a2aSHaggai Eran ret = ib_umem_copy_from(buffer + first_copy_length, umem, wq->offset, 166c1395a2aSHaggai Eran wqe_length - first_copy_length); 167c1395a2aSHaggai Eran if (ret) 168c1395a2aSHaggai Eran return ret; 169c1395a2aSHaggai Eran 170c1395a2aSHaggai Eran return wqe_length; 171c1395a2aSHaggai Eran } 172c1395a2aSHaggai Eran 173e126ba97SEli Cohen static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type) 174e126ba97SEli Cohen { 175e126ba97SEli Cohen struct ib_qp *ibqp = &to_mibqp(qp)->ibqp; 176e126ba97SEli Cohen struct ib_event event; 177e126ba97SEli Cohen 17819098df2Smajd@mellanox.com if (type == MLX5_EVENT_TYPE_PATH_MIG) { 17919098df2Smajd@mellanox.com /* This event is only valid for trans_qps */ 18019098df2Smajd@mellanox.com to_mibqp(qp)->port = to_mibqp(qp)->trans_qp.alt_port; 18119098df2Smajd@mellanox.com } 182e126ba97SEli Cohen 183e126ba97SEli Cohen if (ibqp->event_handler) { 184e126ba97SEli Cohen event.device = ibqp->device; 185e126ba97SEli Cohen event.element.qp = ibqp; 186e126ba97SEli Cohen switch (type) { 187e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG: 188e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG; 189e126ba97SEli Cohen break; 190e126ba97SEli Cohen case MLX5_EVENT_TYPE_COMM_EST: 191e126ba97SEli Cohen event.event = IB_EVENT_COMM_EST; 192e126ba97SEli Cohen break; 193e126ba97SEli Cohen case MLX5_EVENT_TYPE_SQ_DRAINED: 194e126ba97SEli Cohen event.event = IB_EVENT_SQ_DRAINED; 195e126ba97SEli Cohen break; 196e126ba97SEli Cohen case MLX5_EVENT_TYPE_SRQ_LAST_WQE: 197e126ba97SEli Cohen event.event = IB_EVENT_QP_LAST_WQE_REACHED; 198e126ba97SEli Cohen break; 199e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: 200e126ba97SEli Cohen event.event = IB_EVENT_QP_FATAL; 201e126ba97SEli Cohen break; 202e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG_FAILED: 203e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG_ERR; 204e126ba97SEli Cohen break; 205e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: 206e126ba97SEli Cohen event.event = IB_EVENT_QP_REQ_ERR; 207e126ba97SEli Cohen break; 208e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: 209e126ba97SEli Cohen event.event = IB_EVENT_QP_ACCESS_ERR; 210e126ba97SEli Cohen break; 211e126ba97SEli Cohen default: 212e126ba97SEli Cohen pr_warn("mlx5_ib: Unexpected event type %d on QP %06x\n", type, qp->qpn); 213e126ba97SEli Cohen return; 214e126ba97SEli Cohen } 215e126ba97SEli Cohen 216e126ba97SEli Cohen ibqp->event_handler(&event, ibqp->qp_context); 217e126ba97SEli Cohen } 218e126ba97SEli Cohen } 219e126ba97SEli Cohen 220e126ba97SEli Cohen static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap, 221e126ba97SEli Cohen int has_rq, struct mlx5_ib_qp *qp, struct mlx5_ib_create_qp *ucmd) 222e126ba97SEli Cohen { 223e126ba97SEli Cohen int wqe_size; 224e126ba97SEli Cohen int wq_size; 225e126ba97SEli Cohen 226e126ba97SEli Cohen /* Sanity check RQ size before proceeding */ 227938fe83cSSaeed Mahameed if (cap->max_recv_wr > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) 228e126ba97SEli Cohen return -EINVAL; 229e126ba97SEli Cohen 230e126ba97SEli Cohen if (!has_rq) { 231e126ba97SEli Cohen qp->rq.max_gs = 0; 232e126ba97SEli Cohen qp->rq.wqe_cnt = 0; 233e126ba97SEli Cohen qp->rq.wqe_shift = 0; 234e126ba97SEli Cohen } else { 235e126ba97SEli Cohen if (ucmd) { 236e126ba97SEli Cohen qp->rq.wqe_cnt = ucmd->rq_wqe_count; 237e126ba97SEli Cohen qp->rq.wqe_shift = ucmd->rq_wqe_shift; 238e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 239e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 240e126ba97SEli Cohen } else { 241e126ba97SEli Cohen wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0; 242e126ba97SEli Cohen wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg); 243e126ba97SEli Cohen wqe_size = roundup_pow_of_two(wqe_size); 244e126ba97SEli Cohen wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size; 245e126ba97SEli Cohen wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB); 246e126ba97SEli Cohen qp->rq.wqe_cnt = wq_size / wqe_size; 247938fe83cSSaeed Mahameed if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq)) { 248e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d, max %d\n", 249e126ba97SEli Cohen wqe_size, 250938fe83cSSaeed Mahameed MLX5_CAP_GEN(dev->mdev, 251938fe83cSSaeed Mahameed max_wqe_sz_rq)); 252e126ba97SEli Cohen return -EINVAL; 253e126ba97SEli Cohen } 254e126ba97SEli Cohen qp->rq.wqe_shift = ilog2(wqe_size); 255e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 256e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 257e126ba97SEli Cohen } 258e126ba97SEli Cohen } 259e126ba97SEli Cohen 260e126ba97SEli Cohen return 0; 261e126ba97SEli Cohen } 262e126ba97SEli Cohen 263e126ba97SEli Cohen static int sq_overhead(enum ib_qp_type qp_type) 264e126ba97SEli Cohen { 265618af384SAndi Shyti int size = 0; 266e126ba97SEli Cohen 267e126ba97SEli Cohen switch (qp_type) { 268e126ba97SEli Cohen case IB_QPT_XRC_INI: 269b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_xrc_seg); 270e126ba97SEli Cohen /* fall through */ 271e126ba97SEli Cohen case IB_QPT_RC: 272e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 273e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg) + 274e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 275e126ba97SEli Cohen break; 276e126ba97SEli Cohen 277b125a54bSEli Cohen case IB_QPT_XRC_TGT: 278b125a54bSEli Cohen return 0; 279b125a54bSEli Cohen 280e126ba97SEli Cohen case IB_QPT_UC: 281b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 2829e65dc37SEli Cohen sizeof(struct mlx5_wqe_raddr_seg) + 2839e65dc37SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 2849e65dc37SEli Cohen sizeof(struct mlx5_mkey_seg); 285e126ba97SEli Cohen break; 286e126ba97SEli Cohen 287e126ba97SEli Cohen case IB_QPT_UD: 288e126ba97SEli Cohen case IB_QPT_SMI: 289e126ba97SEli Cohen case IB_QPT_GSI: 290b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 291e126ba97SEli Cohen sizeof(struct mlx5_wqe_datagram_seg); 292e126ba97SEli Cohen break; 293e126ba97SEli Cohen 294e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 295b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 296e126ba97SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 297e126ba97SEli Cohen sizeof(struct mlx5_mkey_seg); 298e126ba97SEli Cohen break; 299e126ba97SEli Cohen 300e126ba97SEli Cohen default: 301e126ba97SEli Cohen return -EINVAL; 302e126ba97SEli Cohen } 303e126ba97SEli Cohen 304e126ba97SEli Cohen return size; 305e126ba97SEli Cohen } 306e126ba97SEli Cohen 307e126ba97SEli Cohen static int calc_send_wqe(struct ib_qp_init_attr *attr) 308e126ba97SEli Cohen { 309e126ba97SEli Cohen int inl_size = 0; 310e126ba97SEli Cohen int size; 311e126ba97SEli Cohen 312e126ba97SEli Cohen size = sq_overhead(attr->qp_type); 313e126ba97SEli Cohen if (size < 0) 314e126ba97SEli Cohen return size; 315e126ba97SEli Cohen 316e126ba97SEli Cohen if (attr->cap.max_inline_data) { 317e126ba97SEli Cohen inl_size = size + sizeof(struct mlx5_wqe_inline_seg) + 318e126ba97SEli Cohen attr->cap.max_inline_data; 319e126ba97SEli Cohen } 320e126ba97SEli Cohen 321e126ba97SEli Cohen size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg); 322e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN && 323e1e66cc2SSagi Grimberg ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE) 324e1e66cc2SSagi Grimberg return MLX5_SIG_WQE_SIZE; 325e1e66cc2SSagi Grimberg else 326e126ba97SEli Cohen return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB); 327e126ba97SEli Cohen } 328e126ba97SEli Cohen 329e126ba97SEli Cohen static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 330e126ba97SEli Cohen struct mlx5_ib_qp *qp) 331e126ba97SEli Cohen { 332e126ba97SEli Cohen int wqe_size; 333e126ba97SEli Cohen int wq_size; 334e126ba97SEli Cohen 335e126ba97SEli Cohen if (!attr->cap.max_send_wr) 336e126ba97SEli Cohen return 0; 337e126ba97SEli Cohen 338e126ba97SEli Cohen wqe_size = calc_send_wqe(attr); 339e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size); 340e126ba97SEli Cohen if (wqe_size < 0) 341e126ba97SEli Cohen return wqe_size; 342e126ba97SEli Cohen 343938fe83cSSaeed Mahameed if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) { 344b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", 345938fe83cSSaeed Mahameed wqe_size, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)); 346e126ba97SEli Cohen return -EINVAL; 347e126ba97SEli Cohen } 348e126ba97SEli Cohen 349e126ba97SEli Cohen qp->max_inline_data = wqe_size - sq_overhead(attr->qp_type) - 350e126ba97SEli Cohen sizeof(struct mlx5_wqe_inline_seg); 351e126ba97SEli Cohen attr->cap.max_inline_data = qp->max_inline_data; 352e126ba97SEli Cohen 353e1e66cc2SSagi Grimberg if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) 354e1e66cc2SSagi Grimberg qp->signature_en = true; 355e1e66cc2SSagi Grimberg 356e126ba97SEli Cohen wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); 357e126ba97SEli Cohen qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; 358938fe83cSSaeed Mahameed if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) { 359b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", 360938fe83cSSaeed Mahameed qp->sq.wqe_cnt, 361938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)); 362b125a54bSEli Cohen return -ENOMEM; 363b125a54bSEli Cohen } 364e126ba97SEli Cohen qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 365e126ba97SEli Cohen qp->sq.max_gs = attr->cap.max_send_sge; 366b125a54bSEli Cohen qp->sq.max_post = wq_size / wqe_size; 367b125a54bSEli Cohen attr->cap.max_send_wr = qp->sq.max_post; 368e126ba97SEli Cohen 369e126ba97SEli Cohen return wq_size; 370e126ba97SEli Cohen } 371e126ba97SEli Cohen 372e126ba97SEli Cohen static int set_user_buf_size(struct mlx5_ib_dev *dev, 373e126ba97SEli Cohen struct mlx5_ib_qp *qp, 37419098df2Smajd@mellanox.com struct mlx5_ib_create_qp *ucmd, 3750fb2ed66Smajd@mellanox.com struct mlx5_ib_qp_base *base, 3760fb2ed66Smajd@mellanox.com struct ib_qp_init_attr *attr) 377e126ba97SEli Cohen { 378e126ba97SEli Cohen int desc_sz = 1 << qp->sq.wqe_shift; 379e126ba97SEli Cohen 380938fe83cSSaeed Mahameed if (desc_sz > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) { 381e126ba97SEli Cohen mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n", 382938fe83cSSaeed Mahameed desc_sz, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)); 383e126ba97SEli Cohen return -EINVAL; 384e126ba97SEli Cohen } 385e126ba97SEli Cohen 386e126ba97SEli Cohen if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) { 387e126ba97SEli Cohen mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n", 388e126ba97SEli Cohen ucmd->sq_wqe_count, ucmd->sq_wqe_count); 389e126ba97SEli Cohen return -EINVAL; 390e126ba97SEli Cohen } 391e126ba97SEli Cohen 392e126ba97SEli Cohen qp->sq.wqe_cnt = ucmd->sq_wqe_count; 393e126ba97SEli Cohen 394938fe83cSSaeed Mahameed if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) { 395e126ba97SEli Cohen mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n", 396938fe83cSSaeed Mahameed qp->sq.wqe_cnt, 397938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)); 398e126ba97SEli Cohen return -EINVAL; 399e126ba97SEli Cohen } 400e126ba97SEli Cohen 4010fb2ed66Smajd@mellanox.com if (attr->qp_type == IB_QPT_RAW_PACKET) { 4020fb2ed66Smajd@mellanox.com base->ubuffer.buf_size = qp->rq.wqe_cnt << qp->rq.wqe_shift; 4030fb2ed66Smajd@mellanox.com qp->raw_packet_qp.sq.ubuffer.buf_size = qp->sq.wqe_cnt << 6; 4040fb2ed66Smajd@mellanox.com } else { 40519098df2Smajd@mellanox.com base->ubuffer.buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) + 406e126ba97SEli Cohen (qp->sq.wqe_cnt << 6); 4070fb2ed66Smajd@mellanox.com } 408e126ba97SEli Cohen 409e126ba97SEli Cohen return 0; 410e126ba97SEli Cohen } 411e126ba97SEli Cohen 412e126ba97SEli Cohen static int qp_has_rq(struct ib_qp_init_attr *attr) 413e126ba97SEli Cohen { 414e126ba97SEli Cohen if (attr->qp_type == IB_QPT_XRC_INI || 415e126ba97SEli Cohen attr->qp_type == IB_QPT_XRC_TGT || attr->srq || 416e126ba97SEli Cohen attr->qp_type == MLX5_IB_QPT_REG_UMR || 417e126ba97SEli Cohen !attr->cap.max_recv_wr) 418e126ba97SEli Cohen return 0; 419e126ba97SEli Cohen 420e126ba97SEli Cohen return 1; 421e126ba97SEli Cohen } 422e126ba97SEli Cohen 423c1be5232SEli Cohen static int first_med_uuar(void) 424c1be5232SEli Cohen { 425c1be5232SEli Cohen return 1; 426c1be5232SEli Cohen } 427c1be5232SEli Cohen 428c1be5232SEli Cohen static int next_uuar(int n) 429c1be5232SEli Cohen { 430c1be5232SEli Cohen n++; 431c1be5232SEli Cohen 432c1be5232SEli Cohen while (((n % 4) & 2)) 433c1be5232SEli Cohen n++; 434c1be5232SEli Cohen 435c1be5232SEli Cohen return n; 436c1be5232SEli Cohen } 437c1be5232SEli Cohen 438c1be5232SEli Cohen static int num_med_uuar(struct mlx5_uuar_info *uuari) 439c1be5232SEli Cohen { 440c1be5232SEli Cohen int n; 441c1be5232SEli Cohen 442c1be5232SEli Cohen n = uuari->num_uars * MLX5_NON_FP_BF_REGS_PER_PAGE - 443c1be5232SEli Cohen uuari->num_low_latency_uuars - 1; 444c1be5232SEli Cohen 445c1be5232SEli Cohen return n >= 0 ? n : 0; 446c1be5232SEli Cohen } 447c1be5232SEli Cohen 448c1be5232SEli Cohen static int max_uuari(struct mlx5_uuar_info *uuari) 449c1be5232SEli Cohen { 450c1be5232SEli Cohen return uuari->num_uars * 4; 451c1be5232SEli Cohen } 452c1be5232SEli Cohen 453c1be5232SEli Cohen static int first_hi_uuar(struct mlx5_uuar_info *uuari) 454c1be5232SEli Cohen { 455c1be5232SEli Cohen int med; 456c1be5232SEli Cohen int i; 457c1be5232SEli Cohen int t; 458c1be5232SEli Cohen 459c1be5232SEli Cohen med = num_med_uuar(uuari); 460c1be5232SEli Cohen for (t = 0, i = first_med_uuar();; i = next_uuar(i)) { 461c1be5232SEli Cohen t++; 462c1be5232SEli Cohen if (t == med) 463c1be5232SEli Cohen return next_uuar(i); 464c1be5232SEli Cohen } 465c1be5232SEli Cohen 466c1be5232SEli Cohen return 0; 467c1be5232SEli Cohen } 468c1be5232SEli Cohen 469e126ba97SEli Cohen static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari) 470e126ba97SEli Cohen { 471e126ba97SEli Cohen int i; 472e126ba97SEli Cohen 473c1be5232SEli Cohen for (i = first_hi_uuar(uuari); i < max_uuari(uuari); i = next_uuar(i)) { 474e126ba97SEli Cohen if (!test_bit(i, uuari->bitmap)) { 475e126ba97SEli Cohen set_bit(i, uuari->bitmap); 476e126ba97SEli Cohen uuari->count[i]++; 477e126ba97SEli Cohen return i; 478e126ba97SEli Cohen } 479e126ba97SEli Cohen } 480e126ba97SEli Cohen 481e126ba97SEli Cohen return -ENOMEM; 482e126ba97SEli Cohen } 483e126ba97SEli Cohen 484e126ba97SEli Cohen static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari) 485e126ba97SEli Cohen { 486c1be5232SEli Cohen int minidx = first_med_uuar(); 487e126ba97SEli Cohen int i; 488e126ba97SEli Cohen 489c1be5232SEli Cohen for (i = first_med_uuar(); i < first_hi_uuar(uuari); i = next_uuar(i)) { 490e126ba97SEli Cohen if (uuari->count[i] < uuari->count[minidx]) 491e126ba97SEli Cohen minidx = i; 492e126ba97SEli Cohen } 493e126ba97SEli Cohen 494e126ba97SEli Cohen uuari->count[minidx]++; 495e126ba97SEli Cohen return minidx; 496e126ba97SEli Cohen } 497e126ba97SEli Cohen 498e126ba97SEli Cohen static int alloc_uuar(struct mlx5_uuar_info *uuari, 499e126ba97SEli Cohen enum mlx5_ib_latency_class lat) 500e126ba97SEli Cohen { 501e126ba97SEli Cohen int uuarn = -EINVAL; 502e126ba97SEli Cohen 503e126ba97SEli Cohen mutex_lock(&uuari->lock); 504e126ba97SEli Cohen switch (lat) { 505e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_LOW: 506e126ba97SEli Cohen uuarn = 0; 507e126ba97SEli Cohen uuari->count[uuarn]++; 508e126ba97SEli Cohen break; 509e126ba97SEli Cohen 510e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_MEDIUM: 51178c0f98cSEli Cohen if (uuari->ver < 2) 51278c0f98cSEli Cohen uuarn = -ENOMEM; 51378c0f98cSEli Cohen else 514e126ba97SEli Cohen uuarn = alloc_med_class_uuar(uuari); 515e126ba97SEli Cohen break; 516e126ba97SEli Cohen 517e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_HIGH: 51878c0f98cSEli Cohen if (uuari->ver < 2) 51978c0f98cSEli Cohen uuarn = -ENOMEM; 52078c0f98cSEli Cohen else 521e126ba97SEli Cohen uuarn = alloc_high_class_uuar(uuari); 522e126ba97SEli Cohen break; 523e126ba97SEli Cohen 524e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_FAST_PATH: 525e126ba97SEli Cohen uuarn = 2; 526e126ba97SEli Cohen break; 527e126ba97SEli Cohen } 528e126ba97SEli Cohen mutex_unlock(&uuari->lock); 529e126ba97SEli Cohen 530e126ba97SEli Cohen return uuarn; 531e126ba97SEli Cohen } 532e126ba97SEli Cohen 533e126ba97SEli Cohen static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 534e126ba97SEli Cohen { 535e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 536e126ba97SEli Cohen --uuari->count[uuarn]; 537e126ba97SEli Cohen } 538e126ba97SEli Cohen 539e126ba97SEli Cohen static void free_high_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 540e126ba97SEli Cohen { 541e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 542e126ba97SEli Cohen --uuari->count[uuarn]; 543e126ba97SEli Cohen } 544e126ba97SEli Cohen 545e126ba97SEli Cohen static void free_uuar(struct mlx5_uuar_info *uuari, int uuarn) 546e126ba97SEli Cohen { 547e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 548e126ba97SEli Cohen int high_uuar = nuuars - uuari->num_low_latency_uuars; 549e126ba97SEli Cohen 550e126ba97SEli Cohen mutex_lock(&uuari->lock); 551e126ba97SEli Cohen if (uuarn == 0) { 552e126ba97SEli Cohen --uuari->count[uuarn]; 553e126ba97SEli Cohen goto out; 554e126ba97SEli Cohen } 555e126ba97SEli Cohen 556e126ba97SEli Cohen if (uuarn < high_uuar) { 557e126ba97SEli Cohen free_med_class_uuar(uuari, uuarn); 558e126ba97SEli Cohen goto out; 559e126ba97SEli Cohen } 560e126ba97SEli Cohen 561e126ba97SEli Cohen free_high_class_uuar(uuari, uuarn); 562e126ba97SEli Cohen 563e126ba97SEli Cohen out: 564e126ba97SEli Cohen mutex_unlock(&uuari->lock); 565e126ba97SEli Cohen } 566e126ba97SEli Cohen 567e126ba97SEli Cohen static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state) 568e126ba97SEli Cohen { 569e126ba97SEli Cohen switch (state) { 570e126ba97SEli Cohen case IB_QPS_RESET: return MLX5_QP_STATE_RST; 571e126ba97SEli Cohen case IB_QPS_INIT: return MLX5_QP_STATE_INIT; 572e126ba97SEli Cohen case IB_QPS_RTR: return MLX5_QP_STATE_RTR; 573e126ba97SEli Cohen case IB_QPS_RTS: return MLX5_QP_STATE_RTS; 574e126ba97SEli Cohen case IB_QPS_SQD: return MLX5_QP_STATE_SQD; 575e126ba97SEli Cohen case IB_QPS_SQE: return MLX5_QP_STATE_SQER; 576e126ba97SEli Cohen case IB_QPS_ERR: return MLX5_QP_STATE_ERR; 577e126ba97SEli Cohen default: return -1; 578e126ba97SEli Cohen } 579e126ba97SEli Cohen } 580e126ba97SEli Cohen 581e126ba97SEli Cohen static int to_mlx5_st(enum ib_qp_type type) 582e126ba97SEli Cohen { 583e126ba97SEli Cohen switch (type) { 584e126ba97SEli Cohen case IB_QPT_RC: return MLX5_QP_ST_RC; 585e126ba97SEli Cohen case IB_QPT_UC: return MLX5_QP_ST_UC; 586e126ba97SEli Cohen case IB_QPT_UD: return MLX5_QP_ST_UD; 587e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR; 588e126ba97SEli Cohen case IB_QPT_XRC_INI: 589e126ba97SEli Cohen case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC; 590e126ba97SEli Cohen case IB_QPT_SMI: return MLX5_QP_ST_QP0; 591e126ba97SEli Cohen case IB_QPT_GSI: return MLX5_QP_ST_QP1; 592e126ba97SEli Cohen case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6; 593e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 5940fb2ed66Smajd@mellanox.com case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE; 595e126ba97SEli Cohen case IB_QPT_MAX: 596e126ba97SEli Cohen default: return -EINVAL; 597e126ba97SEli Cohen } 598e126ba97SEli Cohen } 599e126ba97SEli Cohen 600e126ba97SEli Cohen static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn) 601e126ba97SEli Cohen { 602e126ba97SEli Cohen return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index; 603e126ba97SEli Cohen } 604e126ba97SEli Cohen 60519098df2Smajd@mellanox.com static int mlx5_ib_umem_get(struct mlx5_ib_dev *dev, 60619098df2Smajd@mellanox.com struct ib_pd *pd, 60719098df2Smajd@mellanox.com unsigned long addr, size_t size, 60819098df2Smajd@mellanox.com struct ib_umem **umem, 60919098df2Smajd@mellanox.com int *npages, int *page_shift, int *ncont, 61019098df2Smajd@mellanox.com u32 *offset) 61119098df2Smajd@mellanox.com { 61219098df2Smajd@mellanox.com int err; 61319098df2Smajd@mellanox.com 61419098df2Smajd@mellanox.com *umem = ib_umem_get(pd->uobject->context, addr, size, 0, 0); 61519098df2Smajd@mellanox.com if (IS_ERR(*umem)) { 61619098df2Smajd@mellanox.com mlx5_ib_dbg(dev, "umem_get failed\n"); 61719098df2Smajd@mellanox.com return PTR_ERR(*umem); 61819098df2Smajd@mellanox.com } 61919098df2Smajd@mellanox.com 62019098df2Smajd@mellanox.com mlx5_ib_cont_pages(*umem, addr, npages, page_shift, ncont, NULL); 62119098df2Smajd@mellanox.com 62219098df2Smajd@mellanox.com err = mlx5_ib_get_buf_offset(addr, *page_shift, offset); 62319098df2Smajd@mellanox.com if (err) { 62419098df2Smajd@mellanox.com mlx5_ib_warn(dev, "bad offset\n"); 62519098df2Smajd@mellanox.com goto err_umem; 62619098df2Smajd@mellanox.com } 62719098df2Smajd@mellanox.com 62819098df2Smajd@mellanox.com mlx5_ib_dbg(dev, "addr 0x%lx, size %zu, npages %d, page_shift %d, ncont %d, offset %d\n", 62919098df2Smajd@mellanox.com addr, size, *npages, *page_shift, *ncont, *offset); 63019098df2Smajd@mellanox.com 63119098df2Smajd@mellanox.com return 0; 63219098df2Smajd@mellanox.com 63319098df2Smajd@mellanox.com err_umem: 63419098df2Smajd@mellanox.com ib_umem_release(*umem); 63519098df2Smajd@mellanox.com *umem = NULL; 63619098df2Smajd@mellanox.com 63719098df2Smajd@mellanox.com return err; 63819098df2Smajd@mellanox.com } 63919098df2Smajd@mellanox.com 640e126ba97SEli Cohen static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, 641e126ba97SEli Cohen struct mlx5_ib_qp *qp, struct ib_udata *udata, 6420fb2ed66Smajd@mellanox.com struct ib_qp_init_attr *attr, 643e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, 64419098df2Smajd@mellanox.com struct mlx5_ib_create_qp_resp *resp, int *inlen, 64519098df2Smajd@mellanox.com struct mlx5_ib_qp_base *base) 646e126ba97SEli Cohen { 647e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 648e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 64919098df2Smajd@mellanox.com struct mlx5_ib_ubuffer *ubuffer = &base->ubuffer; 6509e9c47d0SEli Cohen int page_shift = 0; 651e126ba97SEli Cohen int uar_index; 652e126ba97SEli Cohen int npages; 6539e9c47d0SEli Cohen u32 offset = 0; 654e126ba97SEli Cohen int uuarn; 6559e9c47d0SEli Cohen int ncont = 0; 656e126ba97SEli Cohen int err; 657e126ba97SEli Cohen 658e126ba97SEli Cohen err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 659e126ba97SEli Cohen if (err) { 660e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 661e126ba97SEli Cohen return err; 662e126ba97SEli Cohen } 663e126ba97SEli Cohen 664e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 665e126ba97SEli Cohen /* 666e126ba97SEli Cohen * TBD: should come from the verbs when we have the API 667e126ba97SEli Cohen */ 668051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL) 669051f2630SLeon Romanovsky /* In CROSS_CHANNEL CQ and QP must use the same UAR */ 670051f2630SLeon Romanovsky uuarn = MLX5_CROSS_CHANNEL_UUAR; 671051f2630SLeon Romanovsky else { 672e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH); 673e126ba97SEli Cohen if (uuarn < 0) { 674e126ba97SEli Cohen mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n"); 675c1be5232SEli Cohen mlx5_ib_dbg(dev, "reverting to medium latency\n"); 676c1be5232SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_MEDIUM); 677c1be5232SEli Cohen if (uuarn < 0) { 678c1be5232SEli Cohen mlx5_ib_dbg(dev, "failed to allocate medium latency UUAR\n"); 679e126ba97SEli Cohen mlx5_ib_dbg(dev, "reverting to high latency\n"); 680e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW); 681e126ba97SEli Cohen if (uuarn < 0) { 682c1be5232SEli Cohen mlx5_ib_warn(dev, "uuar allocation failed\n"); 683e126ba97SEli Cohen return uuarn; 684e126ba97SEli Cohen } 685e126ba97SEli Cohen } 686c1be5232SEli Cohen } 687051f2630SLeon Romanovsky } 688e126ba97SEli Cohen 689e126ba97SEli Cohen uar_index = uuarn_to_uar_index(&context->uuari, uuarn); 690e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index); 691e126ba97SEli Cohen 69248fea837SHaggai Eran qp->rq.offset = 0; 69348fea837SHaggai Eran qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 69448fea837SHaggai Eran qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 69548fea837SHaggai Eran 6960fb2ed66Smajd@mellanox.com err = set_user_buf_size(dev, qp, &ucmd, base, attr); 697e126ba97SEli Cohen if (err) 698e126ba97SEli Cohen goto err_uuar; 699e126ba97SEli Cohen 70019098df2Smajd@mellanox.com if (ucmd.buf_addr && ubuffer->buf_size) { 70119098df2Smajd@mellanox.com ubuffer->buf_addr = ucmd.buf_addr; 70219098df2Smajd@mellanox.com err = mlx5_ib_umem_get(dev, pd, ubuffer->buf_addr, 70319098df2Smajd@mellanox.com ubuffer->buf_size, 70419098df2Smajd@mellanox.com &ubuffer->umem, &npages, &page_shift, 70519098df2Smajd@mellanox.com &ncont, &offset); 70619098df2Smajd@mellanox.com if (err) 707e126ba97SEli Cohen goto err_uuar; 7089e9c47d0SEli Cohen } else { 70919098df2Smajd@mellanox.com ubuffer->umem = NULL; 7109e9c47d0SEli Cohen } 711e126ba97SEli Cohen 712e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont; 713e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 714e126ba97SEli Cohen if (!*in) { 715e126ba97SEli Cohen err = -ENOMEM; 716e126ba97SEli Cohen goto err_umem; 717e126ba97SEli Cohen } 71819098df2Smajd@mellanox.com if (ubuffer->umem) 71919098df2Smajd@mellanox.com mlx5_ib_populate_pas(dev, ubuffer->umem, page_shift, 72019098df2Smajd@mellanox.com (*in)->pas, 0); 721e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 7221b77d2bdSEli Cohen cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 723e126ba97SEli Cohen (*in)->ctx.params2 = cpu_to_be32(offset << 6); 724e126ba97SEli Cohen 725e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 726e126ba97SEli Cohen resp->uuar_index = uuarn; 727e126ba97SEli Cohen qp->uuarn = uuarn; 728e126ba97SEli Cohen 729e126ba97SEli Cohen err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db); 730e126ba97SEli Cohen if (err) { 731e126ba97SEli Cohen mlx5_ib_dbg(dev, "map failed\n"); 732e126ba97SEli Cohen goto err_free; 733e126ba97SEli Cohen } 734e126ba97SEli Cohen 735e126ba97SEli Cohen err = ib_copy_to_udata(udata, resp, sizeof(*resp)); 736e126ba97SEli Cohen if (err) { 737e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 738e126ba97SEli Cohen goto err_unmap; 739e126ba97SEli Cohen } 740e126ba97SEli Cohen qp->create_type = MLX5_QP_USER; 741e126ba97SEli Cohen 742e126ba97SEli Cohen return 0; 743e126ba97SEli Cohen 744e126ba97SEli Cohen err_unmap: 745e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 746e126ba97SEli Cohen 747e126ba97SEli Cohen err_free: 748479163f4SAl Viro kvfree(*in); 749e126ba97SEli Cohen 750e126ba97SEli Cohen err_umem: 75119098df2Smajd@mellanox.com if (ubuffer->umem) 75219098df2Smajd@mellanox.com ib_umem_release(ubuffer->umem); 753e126ba97SEli Cohen 754e126ba97SEli Cohen err_uuar: 755e126ba97SEli Cohen free_uuar(&context->uuari, uuarn); 756e126ba97SEli Cohen return err; 757e126ba97SEli Cohen } 758e126ba97SEli Cohen 75919098df2Smajd@mellanox.com static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp, 76019098df2Smajd@mellanox.com struct mlx5_ib_qp_base *base) 761e126ba97SEli Cohen { 762e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 763e126ba97SEli Cohen 764e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 765e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 76619098df2Smajd@mellanox.com if (base->ubuffer.umem) 76719098df2Smajd@mellanox.com ib_umem_release(base->ubuffer.umem); 768e126ba97SEli Cohen free_uuar(&context->uuari, qp->uuarn); 769e126ba97SEli Cohen } 770e126ba97SEli Cohen 771e126ba97SEli Cohen static int create_kernel_qp(struct mlx5_ib_dev *dev, 772e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 773e126ba97SEli Cohen struct mlx5_ib_qp *qp, 77419098df2Smajd@mellanox.com struct mlx5_create_qp_mbox_in **in, int *inlen, 77519098df2Smajd@mellanox.com struct mlx5_ib_qp_base *base) 776e126ba97SEli Cohen { 777e126ba97SEli Cohen enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW; 778e126ba97SEli Cohen struct mlx5_uuar_info *uuari; 779e126ba97SEli Cohen int uar_index; 780e126ba97SEli Cohen int uuarn; 781e126ba97SEli Cohen int err; 782e126ba97SEli Cohen 7839603b61dSJack Morgenstein uuari = &dev->mdev->priv.uuari; 784652c1a05SOr Gerlitz if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)) 7851a4c3a3dSEli Cohen return -EINVAL; 786e126ba97SEli Cohen 787e126ba97SEli Cohen if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR) 788e126ba97SEli Cohen lc = MLX5_IB_LATENCY_CLASS_FAST_PATH; 789e126ba97SEli Cohen 790e126ba97SEli Cohen uuarn = alloc_uuar(uuari, lc); 791e126ba97SEli Cohen if (uuarn < 0) { 792e126ba97SEli Cohen mlx5_ib_dbg(dev, "\n"); 793e126ba97SEli Cohen return -ENOMEM; 794e126ba97SEli Cohen } 795e126ba97SEli Cohen 796e126ba97SEli Cohen qp->bf = &uuari->bfs[uuarn]; 797e126ba97SEli Cohen uar_index = qp->bf->uar->index; 798e126ba97SEli Cohen 799e126ba97SEli Cohen err = calc_sq_size(dev, init_attr, qp); 800e126ba97SEli Cohen if (err < 0) { 801e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 802e126ba97SEli Cohen goto err_uuar; 803e126ba97SEli Cohen } 804e126ba97SEli Cohen 805e126ba97SEli Cohen qp->rq.offset = 0; 806e126ba97SEli Cohen qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 80719098df2Smajd@mellanox.com base->ubuffer.buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); 808e126ba97SEli Cohen 80919098df2Smajd@mellanox.com err = mlx5_buf_alloc(dev->mdev, base->ubuffer.buf_size, &qp->buf); 810e126ba97SEli Cohen if (err) { 811e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 812e126ba97SEli Cohen goto err_uuar; 813e126ba97SEli Cohen } 814e126ba97SEli Cohen 815e126ba97SEli Cohen qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt); 816e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * qp->buf.npages; 817e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 818e126ba97SEli Cohen if (!*in) { 819e126ba97SEli Cohen err = -ENOMEM; 820e126ba97SEli Cohen goto err_buf; 821e126ba97SEli Cohen } 822e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 8231b77d2bdSEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 8241b77d2bdSEli Cohen cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); 825e126ba97SEli Cohen /* Set "fast registration enabled" for all kernel QPs */ 826e126ba97SEli Cohen (*in)->ctx.params1 |= cpu_to_be32(1 << 11); 827e126ba97SEli Cohen (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); 828e126ba97SEli Cohen 829e126ba97SEli Cohen mlx5_fill_page_array(&qp->buf, (*in)->pas); 830e126ba97SEli Cohen 8319603b61dSJack Morgenstein err = mlx5_db_alloc(dev->mdev, &qp->db); 832e126ba97SEli Cohen if (err) { 833e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 834e126ba97SEli Cohen goto err_free; 835e126ba97SEli Cohen } 836e126ba97SEli Cohen 837e126ba97SEli Cohen qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL); 838e126ba97SEli Cohen qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL); 839e126ba97SEli Cohen qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL); 840e126ba97SEli Cohen qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL); 841e126ba97SEli Cohen qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL); 842e126ba97SEli Cohen 843e126ba97SEli Cohen if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid || 844e126ba97SEli Cohen !qp->sq.w_list || !qp->sq.wqe_head) { 845e126ba97SEli Cohen err = -ENOMEM; 846e126ba97SEli Cohen goto err_wrid; 847e126ba97SEli Cohen } 848e126ba97SEli Cohen qp->create_type = MLX5_QP_KERNEL; 849e126ba97SEli Cohen 850e126ba97SEli Cohen return 0; 851e126ba97SEli Cohen 852e126ba97SEli Cohen err_wrid: 8539603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 854e126ba97SEli Cohen kfree(qp->sq.wqe_head); 855e126ba97SEli Cohen kfree(qp->sq.w_list); 856e126ba97SEli Cohen kfree(qp->sq.wrid); 857e126ba97SEli Cohen kfree(qp->sq.wr_data); 858e126ba97SEli Cohen kfree(qp->rq.wrid); 859e126ba97SEli Cohen 860e126ba97SEli Cohen err_free: 861479163f4SAl Viro kvfree(*in); 862e126ba97SEli Cohen 863e126ba97SEli Cohen err_buf: 8649603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 865e126ba97SEli Cohen 866e126ba97SEli Cohen err_uuar: 8679603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, uuarn); 868e126ba97SEli Cohen return err; 869e126ba97SEli Cohen } 870e126ba97SEli Cohen 871e126ba97SEli Cohen static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 872e126ba97SEli Cohen { 8739603b61dSJack Morgenstein mlx5_db_free(dev->mdev, &qp->db); 874e126ba97SEli Cohen kfree(qp->sq.wqe_head); 875e126ba97SEli Cohen kfree(qp->sq.w_list); 876e126ba97SEli Cohen kfree(qp->sq.wrid); 877e126ba97SEli Cohen kfree(qp->sq.wr_data); 878e126ba97SEli Cohen kfree(qp->rq.wrid); 8799603b61dSJack Morgenstein mlx5_buf_free(dev->mdev, &qp->buf); 8809603b61dSJack Morgenstein free_uuar(&dev->mdev->priv.uuari, qp->bf->uuarn); 881e126ba97SEli Cohen } 882e126ba97SEli Cohen 883e126ba97SEli Cohen static __be32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr) 884e126ba97SEli Cohen { 885e126ba97SEli Cohen if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) || 886e126ba97SEli Cohen (attr->qp_type == IB_QPT_XRC_INI)) 887e126ba97SEli Cohen return cpu_to_be32(MLX5_SRQ_RQ); 888e126ba97SEli Cohen else if (!qp->has_rq) 889e126ba97SEli Cohen return cpu_to_be32(MLX5_ZERO_LEN_RQ); 890e126ba97SEli Cohen else 891e126ba97SEli Cohen return cpu_to_be32(MLX5_NON_ZERO_RQ); 892e126ba97SEli Cohen } 893e126ba97SEli Cohen 894e126ba97SEli Cohen static int is_connected(enum ib_qp_type qp_type) 895e126ba97SEli Cohen { 896e126ba97SEli Cohen if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC) 897e126ba97SEli Cohen return 1; 898e126ba97SEli Cohen 899e126ba97SEli Cohen return 0; 900e126ba97SEli Cohen } 901e126ba97SEli Cohen 9020fb2ed66Smajd@mellanox.com static int create_raw_packet_qp_tis(struct mlx5_ib_dev *dev, 9030fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq, u32 tdn) 9040fb2ed66Smajd@mellanox.com { 9050fb2ed66Smajd@mellanox.com u32 in[MLX5_ST_SZ_DW(create_tis_in)]; 9060fb2ed66Smajd@mellanox.com void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); 9070fb2ed66Smajd@mellanox.com 9080fb2ed66Smajd@mellanox.com memset(in, 0, sizeof(in)); 9090fb2ed66Smajd@mellanox.com 9100fb2ed66Smajd@mellanox.com MLX5_SET(tisc, tisc, transport_domain, tdn); 9110fb2ed66Smajd@mellanox.com 9120fb2ed66Smajd@mellanox.com return mlx5_core_create_tis(dev->mdev, in, sizeof(in), &sq->tisn); 9130fb2ed66Smajd@mellanox.com } 9140fb2ed66Smajd@mellanox.com 9150fb2ed66Smajd@mellanox.com static void destroy_raw_packet_qp_tis(struct mlx5_ib_dev *dev, 9160fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq) 9170fb2ed66Smajd@mellanox.com { 9180fb2ed66Smajd@mellanox.com mlx5_core_destroy_tis(dev->mdev, sq->tisn); 9190fb2ed66Smajd@mellanox.com } 9200fb2ed66Smajd@mellanox.com 9210fb2ed66Smajd@mellanox.com static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev, 9220fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq, void *qpin, 9230fb2ed66Smajd@mellanox.com struct ib_pd *pd) 9240fb2ed66Smajd@mellanox.com { 9250fb2ed66Smajd@mellanox.com struct mlx5_ib_ubuffer *ubuffer = &sq->ubuffer; 9260fb2ed66Smajd@mellanox.com __be64 *pas; 9270fb2ed66Smajd@mellanox.com void *in; 9280fb2ed66Smajd@mellanox.com void *sqc; 9290fb2ed66Smajd@mellanox.com void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc); 9300fb2ed66Smajd@mellanox.com void *wq; 9310fb2ed66Smajd@mellanox.com int inlen; 9320fb2ed66Smajd@mellanox.com int err; 9330fb2ed66Smajd@mellanox.com int page_shift = 0; 9340fb2ed66Smajd@mellanox.com int npages; 9350fb2ed66Smajd@mellanox.com int ncont = 0; 9360fb2ed66Smajd@mellanox.com u32 offset = 0; 9370fb2ed66Smajd@mellanox.com 9380fb2ed66Smajd@mellanox.com err = mlx5_ib_umem_get(dev, pd, ubuffer->buf_addr, ubuffer->buf_size, 9390fb2ed66Smajd@mellanox.com &sq->ubuffer.umem, &npages, &page_shift, 9400fb2ed66Smajd@mellanox.com &ncont, &offset); 9410fb2ed66Smajd@mellanox.com if (err) 9420fb2ed66Smajd@mellanox.com return err; 9430fb2ed66Smajd@mellanox.com 9440fb2ed66Smajd@mellanox.com inlen = MLX5_ST_SZ_BYTES(create_sq_in) + sizeof(u64) * ncont; 9450fb2ed66Smajd@mellanox.com in = mlx5_vzalloc(inlen); 9460fb2ed66Smajd@mellanox.com if (!in) { 9470fb2ed66Smajd@mellanox.com err = -ENOMEM; 9480fb2ed66Smajd@mellanox.com goto err_umem; 9490fb2ed66Smajd@mellanox.com } 9500fb2ed66Smajd@mellanox.com 9510fb2ed66Smajd@mellanox.com sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); 9520fb2ed66Smajd@mellanox.com MLX5_SET(sqc, sqc, flush_in_error_en, 1); 9530fb2ed66Smajd@mellanox.com MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); 9540fb2ed66Smajd@mellanox.com MLX5_SET(sqc, sqc, user_index, MLX5_GET(qpc, qpc, user_index)); 9550fb2ed66Smajd@mellanox.com MLX5_SET(sqc, sqc, cqn, MLX5_GET(qpc, qpc, cqn_snd)); 9560fb2ed66Smajd@mellanox.com MLX5_SET(sqc, sqc, tis_lst_sz, 1); 9570fb2ed66Smajd@mellanox.com MLX5_SET(sqc, sqc, tis_num_0, sq->tisn); 9580fb2ed66Smajd@mellanox.com 9590fb2ed66Smajd@mellanox.com wq = MLX5_ADDR_OF(sqc, sqc, wq); 9600fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); 9610fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, pd, MLX5_GET(qpc, qpc, pd)); 9620fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, uar_page, MLX5_GET(qpc, qpc, uar_page)); 9630fb2ed66Smajd@mellanox.com MLX5_SET64(wq, wq, dbr_addr, MLX5_GET64(qpc, qpc, dbr_addr)); 9640fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB)); 9650fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, log_wq_sz, MLX5_GET(qpc, qpc, log_sq_size)); 9660fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, log_wq_pg_sz, page_shift - MLX5_ADAPTER_PAGE_SHIFT); 9670fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, page_offset, offset); 9680fb2ed66Smajd@mellanox.com 9690fb2ed66Smajd@mellanox.com pas = (__be64 *)MLX5_ADDR_OF(wq, wq, pas); 9700fb2ed66Smajd@mellanox.com mlx5_ib_populate_pas(dev, sq->ubuffer.umem, page_shift, pas, 0); 9710fb2ed66Smajd@mellanox.com 9720fb2ed66Smajd@mellanox.com err = mlx5_core_create_sq_tracked(dev->mdev, in, inlen, &sq->base.mqp); 9730fb2ed66Smajd@mellanox.com 9740fb2ed66Smajd@mellanox.com kvfree(in); 9750fb2ed66Smajd@mellanox.com 9760fb2ed66Smajd@mellanox.com if (err) 9770fb2ed66Smajd@mellanox.com goto err_umem; 9780fb2ed66Smajd@mellanox.com 9790fb2ed66Smajd@mellanox.com return 0; 9800fb2ed66Smajd@mellanox.com 9810fb2ed66Smajd@mellanox.com err_umem: 9820fb2ed66Smajd@mellanox.com ib_umem_release(sq->ubuffer.umem); 9830fb2ed66Smajd@mellanox.com sq->ubuffer.umem = NULL; 9840fb2ed66Smajd@mellanox.com 9850fb2ed66Smajd@mellanox.com return err; 9860fb2ed66Smajd@mellanox.com } 9870fb2ed66Smajd@mellanox.com 9880fb2ed66Smajd@mellanox.com static void destroy_raw_packet_qp_sq(struct mlx5_ib_dev *dev, 9890fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq) 9900fb2ed66Smajd@mellanox.com { 9910fb2ed66Smajd@mellanox.com mlx5_core_destroy_sq_tracked(dev->mdev, &sq->base.mqp); 9920fb2ed66Smajd@mellanox.com ib_umem_release(sq->ubuffer.umem); 9930fb2ed66Smajd@mellanox.com } 9940fb2ed66Smajd@mellanox.com 9950fb2ed66Smajd@mellanox.com static int get_rq_pas_size(void *qpc) 9960fb2ed66Smajd@mellanox.com { 9970fb2ed66Smajd@mellanox.com u32 log_page_size = MLX5_GET(qpc, qpc, log_page_size) + 12; 9980fb2ed66Smajd@mellanox.com u32 log_rq_stride = MLX5_GET(qpc, qpc, log_rq_stride); 9990fb2ed66Smajd@mellanox.com u32 log_rq_size = MLX5_GET(qpc, qpc, log_rq_size); 10000fb2ed66Smajd@mellanox.com u32 page_offset = MLX5_GET(qpc, qpc, page_offset); 10010fb2ed66Smajd@mellanox.com u32 po_quanta = 1 << (log_page_size - 6); 10020fb2ed66Smajd@mellanox.com u32 rq_sz = 1 << (log_rq_size + 4 + log_rq_stride); 10030fb2ed66Smajd@mellanox.com u32 page_size = 1 << log_page_size; 10040fb2ed66Smajd@mellanox.com u32 rq_sz_po = rq_sz + (page_offset * po_quanta); 10050fb2ed66Smajd@mellanox.com u32 rq_num_pas = (rq_sz_po + page_size - 1) / page_size; 10060fb2ed66Smajd@mellanox.com 10070fb2ed66Smajd@mellanox.com return rq_num_pas * sizeof(u64); 10080fb2ed66Smajd@mellanox.com } 10090fb2ed66Smajd@mellanox.com 10100fb2ed66Smajd@mellanox.com static int create_raw_packet_qp_rq(struct mlx5_ib_dev *dev, 10110fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq, void *qpin) 10120fb2ed66Smajd@mellanox.com { 10130fb2ed66Smajd@mellanox.com __be64 *pas; 10140fb2ed66Smajd@mellanox.com __be64 *qp_pas; 10150fb2ed66Smajd@mellanox.com void *in; 10160fb2ed66Smajd@mellanox.com void *rqc; 10170fb2ed66Smajd@mellanox.com void *wq; 10180fb2ed66Smajd@mellanox.com void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc); 10190fb2ed66Smajd@mellanox.com int inlen; 10200fb2ed66Smajd@mellanox.com int err; 10210fb2ed66Smajd@mellanox.com u32 rq_pas_size = get_rq_pas_size(qpc); 10220fb2ed66Smajd@mellanox.com 10230fb2ed66Smajd@mellanox.com inlen = MLX5_ST_SZ_BYTES(create_rq_in) + rq_pas_size; 10240fb2ed66Smajd@mellanox.com in = mlx5_vzalloc(inlen); 10250fb2ed66Smajd@mellanox.com if (!in) 10260fb2ed66Smajd@mellanox.com return -ENOMEM; 10270fb2ed66Smajd@mellanox.com 10280fb2ed66Smajd@mellanox.com rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); 10290fb2ed66Smajd@mellanox.com MLX5_SET(rqc, rqc, vsd, 1); 10300fb2ed66Smajd@mellanox.com MLX5_SET(rqc, rqc, mem_rq_type, MLX5_RQC_MEM_RQ_TYPE_MEMORY_RQ_INLINE); 10310fb2ed66Smajd@mellanox.com MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); 10320fb2ed66Smajd@mellanox.com MLX5_SET(rqc, rqc, flush_in_error_en, 1); 10330fb2ed66Smajd@mellanox.com MLX5_SET(rqc, rqc, user_index, MLX5_GET(qpc, qpc, user_index)); 10340fb2ed66Smajd@mellanox.com MLX5_SET(rqc, rqc, cqn, MLX5_GET(qpc, qpc, cqn_rcv)); 10350fb2ed66Smajd@mellanox.com 10360fb2ed66Smajd@mellanox.com wq = MLX5_ADDR_OF(rqc, rqc, wq); 10370fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); 10380fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, end_padding_mode, 10390fb2ed66Smajd@mellanox.com MLX5_GET64(qpc, qpc, end_padding_mode)); 10400fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, page_offset, MLX5_GET(qpc, qpc, page_offset)); 10410fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, pd, MLX5_GET(qpc, qpc, pd)); 10420fb2ed66Smajd@mellanox.com MLX5_SET64(wq, wq, dbr_addr, MLX5_GET64(qpc, qpc, dbr_addr)); 10430fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, log_wq_stride, MLX5_GET(qpc, qpc, log_rq_stride) + 4); 10440fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, log_wq_pg_sz, MLX5_GET(qpc, qpc, log_page_size)); 10450fb2ed66Smajd@mellanox.com MLX5_SET(wq, wq, log_wq_sz, MLX5_GET(qpc, qpc, log_rq_size)); 10460fb2ed66Smajd@mellanox.com 10470fb2ed66Smajd@mellanox.com pas = (__be64 *)MLX5_ADDR_OF(wq, wq, pas); 10480fb2ed66Smajd@mellanox.com qp_pas = (__be64 *)MLX5_ADDR_OF(create_qp_in, qpin, pas); 10490fb2ed66Smajd@mellanox.com memcpy(pas, qp_pas, rq_pas_size); 10500fb2ed66Smajd@mellanox.com 10510fb2ed66Smajd@mellanox.com err = mlx5_core_create_rq_tracked(dev->mdev, in, inlen, &rq->base.mqp); 10520fb2ed66Smajd@mellanox.com 10530fb2ed66Smajd@mellanox.com kvfree(in); 10540fb2ed66Smajd@mellanox.com 10550fb2ed66Smajd@mellanox.com return err; 10560fb2ed66Smajd@mellanox.com } 10570fb2ed66Smajd@mellanox.com 10580fb2ed66Smajd@mellanox.com static void destroy_raw_packet_qp_rq(struct mlx5_ib_dev *dev, 10590fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq) 10600fb2ed66Smajd@mellanox.com { 10610fb2ed66Smajd@mellanox.com mlx5_core_destroy_rq_tracked(dev->mdev, &rq->base.mqp); 10620fb2ed66Smajd@mellanox.com } 10630fb2ed66Smajd@mellanox.com 10640fb2ed66Smajd@mellanox.com static int create_raw_packet_qp_tir(struct mlx5_ib_dev *dev, 10650fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq, u32 tdn) 10660fb2ed66Smajd@mellanox.com { 10670fb2ed66Smajd@mellanox.com u32 *in; 10680fb2ed66Smajd@mellanox.com void *tirc; 10690fb2ed66Smajd@mellanox.com int inlen; 10700fb2ed66Smajd@mellanox.com int err; 10710fb2ed66Smajd@mellanox.com 10720fb2ed66Smajd@mellanox.com inlen = MLX5_ST_SZ_BYTES(create_tir_in); 10730fb2ed66Smajd@mellanox.com in = mlx5_vzalloc(inlen); 10740fb2ed66Smajd@mellanox.com if (!in) 10750fb2ed66Smajd@mellanox.com return -ENOMEM; 10760fb2ed66Smajd@mellanox.com 10770fb2ed66Smajd@mellanox.com tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); 10780fb2ed66Smajd@mellanox.com MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT); 10790fb2ed66Smajd@mellanox.com MLX5_SET(tirc, tirc, inline_rqn, rq->base.mqp.qpn); 10800fb2ed66Smajd@mellanox.com MLX5_SET(tirc, tirc, transport_domain, tdn); 10810fb2ed66Smajd@mellanox.com 10820fb2ed66Smajd@mellanox.com err = mlx5_core_create_tir(dev->mdev, in, inlen, &rq->tirn); 10830fb2ed66Smajd@mellanox.com 10840fb2ed66Smajd@mellanox.com kvfree(in); 10850fb2ed66Smajd@mellanox.com 10860fb2ed66Smajd@mellanox.com return err; 10870fb2ed66Smajd@mellanox.com } 10880fb2ed66Smajd@mellanox.com 10890fb2ed66Smajd@mellanox.com static void destroy_raw_packet_qp_tir(struct mlx5_ib_dev *dev, 10900fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq) 10910fb2ed66Smajd@mellanox.com { 10920fb2ed66Smajd@mellanox.com mlx5_core_destroy_tir(dev->mdev, rq->tirn); 10930fb2ed66Smajd@mellanox.com } 10940fb2ed66Smajd@mellanox.com 10950fb2ed66Smajd@mellanox.com static int create_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, 10960fb2ed66Smajd@mellanox.com struct mlx5_create_qp_mbox_in *in, 10970fb2ed66Smajd@mellanox.com struct ib_pd *pd) 10980fb2ed66Smajd@mellanox.com { 10990fb2ed66Smajd@mellanox.com struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp; 11000fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq = &raw_packet_qp->sq; 11010fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq = &raw_packet_qp->rq; 11020fb2ed66Smajd@mellanox.com struct ib_uobject *uobj = pd->uobject; 11030fb2ed66Smajd@mellanox.com struct ib_ucontext *ucontext = uobj->context; 11040fb2ed66Smajd@mellanox.com struct mlx5_ib_ucontext *mucontext = to_mucontext(ucontext); 11050fb2ed66Smajd@mellanox.com int err; 11060fb2ed66Smajd@mellanox.com u32 tdn = mucontext->tdn; 11070fb2ed66Smajd@mellanox.com 11080fb2ed66Smajd@mellanox.com if (qp->sq.wqe_cnt) { 11090fb2ed66Smajd@mellanox.com err = create_raw_packet_qp_tis(dev, sq, tdn); 11100fb2ed66Smajd@mellanox.com if (err) 11110fb2ed66Smajd@mellanox.com return err; 11120fb2ed66Smajd@mellanox.com 11130fb2ed66Smajd@mellanox.com err = create_raw_packet_qp_sq(dev, sq, in, pd); 11140fb2ed66Smajd@mellanox.com if (err) 11150fb2ed66Smajd@mellanox.com goto err_destroy_tis; 11160fb2ed66Smajd@mellanox.com 11170fb2ed66Smajd@mellanox.com sq->base.container_mibqp = qp; 11180fb2ed66Smajd@mellanox.com } 11190fb2ed66Smajd@mellanox.com 11200fb2ed66Smajd@mellanox.com if (qp->rq.wqe_cnt) { 11210fb2ed66Smajd@mellanox.com err = create_raw_packet_qp_rq(dev, rq, in); 11220fb2ed66Smajd@mellanox.com if (err) 11230fb2ed66Smajd@mellanox.com goto err_destroy_sq; 11240fb2ed66Smajd@mellanox.com 11250fb2ed66Smajd@mellanox.com rq->base.container_mibqp = qp; 11260fb2ed66Smajd@mellanox.com 11270fb2ed66Smajd@mellanox.com err = create_raw_packet_qp_tir(dev, rq, tdn); 11280fb2ed66Smajd@mellanox.com if (err) 11290fb2ed66Smajd@mellanox.com goto err_destroy_rq; 11300fb2ed66Smajd@mellanox.com } 11310fb2ed66Smajd@mellanox.com 11320fb2ed66Smajd@mellanox.com qp->trans_qp.base.mqp.qpn = qp->sq.wqe_cnt ? sq->base.mqp.qpn : 11330fb2ed66Smajd@mellanox.com rq->base.mqp.qpn; 11340fb2ed66Smajd@mellanox.com 11350fb2ed66Smajd@mellanox.com return 0; 11360fb2ed66Smajd@mellanox.com 11370fb2ed66Smajd@mellanox.com err_destroy_rq: 11380fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_rq(dev, rq); 11390fb2ed66Smajd@mellanox.com err_destroy_sq: 11400fb2ed66Smajd@mellanox.com if (!qp->sq.wqe_cnt) 11410fb2ed66Smajd@mellanox.com return err; 11420fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_sq(dev, sq); 11430fb2ed66Smajd@mellanox.com err_destroy_tis: 11440fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_tis(dev, sq); 11450fb2ed66Smajd@mellanox.com 11460fb2ed66Smajd@mellanox.com return err; 11470fb2ed66Smajd@mellanox.com } 11480fb2ed66Smajd@mellanox.com 11490fb2ed66Smajd@mellanox.com static void destroy_raw_packet_qp(struct mlx5_ib_dev *dev, 11500fb2ed66Smajd@mellanox.com struct mlx5_ib_qp *qp) 11510fb2ed66Smajd@mellanox.com { 11520fb2ed66Smajd@mellanox.com struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp; 11530fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq = &raw_packet_qp->sq; 11540fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq = &raw_packet_qp->rq; 11550fb2ed66Smajd@mellanox.com 11560fb2ed66Smajd@mellanox.com if (qp->rq.wqe_cnt) { 11570fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_tir(dev, rq); 11580fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_rq(dev, rq); 11590fb2ed66Smajd@mellanox.com } 11600fb2ed66Smajd@mellanox.com 11610fb2ed66Smajd@mellanox.com if (qp->sq.wqe_cnt) { 11620fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_sq(dev, sq); 11630fb2ed66Smajd@mellanox.com destroy_raw_packet_qp_tis(dev, sq); 11640fb2ed66Smajd@mellanox.com } 11650fb2ed66Smajd@mellanox.com } 11660fb2ed66Smajd@mellanox.com 11670fb2ed66Smajd@mellanox.com static void raw_packet_qp_copy_info(struct mlx5_ib_qp *qp, 11680fb2ed66Smajd@mellanox.com struct mlx5_ib_raw_packet_qp *raw_packet_qp) 11690fb2ed66Smajd@mellanox.com { 11700fb2ed66Smajd@mellanox.com struct mlx5_ib_sq *sq = &raw_packet_qp->sq; 11710fb2ed66Smajd@mellanox.com struct mlx5_ib_rq *rq = &raw_packet_qp->rq; 11720fb2ed66Smajd@mellanox.com 11730fb2ed66Smajd@mellanox.com sq->sq = &qp->sq; 11740fb2ed66Smajd@mellanox.com rq->rq = &qp->rq; 11750fb2ed66Smajd@mellanox.com sq->doorbell = &qp->db; 11760fb2ed66Smajd@mellanox.com rq->doorbell = &qp->db; 11770fb2ed66Smajd@mellanox.com } 11780fb2ed66Smajd@mellanox.com 1179e126ba97SEli Cohen static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, 1180e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1181e126ba97SEli Cohen struct ib_udata *udata, struct mlx5_ib_qp *qp) 1182e126ba97SEli Cohen { 1183e126ba97SEli Cohen struct mlx5_ib_resources *devr = &dev->devr; 1184938fe83cSSaeed Mahameed struct mlx5_core_dev *mdev = dev->mdev; 11850fb2ed66Smajd@mellanox.com struct mlx5_ib_qp_base *base; 1186e126ba97SEli Cohen struct mlx5_ib_create_qp_resp resp; 1187e126ba97SEli Cohen struct mlx5_create_qp_mbox_in *in; 1188e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 1189e126ba97SEli Cohen int inlen = sizeof(*in); 1190e126ba97SEli Cohen int err; 1191cfb5e088SHaggai Abramovsky u32 uidx = MLX5_IB_DEFAULT_UIDX; 1192cfb5e088SHaggai Abramovsky void *qpc; 1193e126ba97SEli Cohen 11940fb2ed66Smajd@mellanox.com base = init_attr->qp_type == IB_QPT_RAW_PACKET ? 11950fb2ed66Smajd@mellanox.com &qp->raw_packet_qp.rq.base : 11960fb2ed66Smajd@mellanox.com &qp->trans_qp.base; 11970fb2ed66Smajd@mellanox.com 11980fb2ed66Smajd@mellanox.com if (init_attr->qp_type != IB_QPT_RAW_PACKET) 11996aec21f6SHaggai Eran mlx5_ib_odp_create_qp(qp); 12006aec21f6SHaggai Eran 1201e126ba97SEli Cohen mutex_init(&qp->mutex); 1202e126ba97SEli Cohen spin_lock_init(&qp->sq.lock); 1203e126ba97SEli Cohen spin_lock_init(&qp->rq.lock); 1204e126ba97SEli Cohen 1205f360d88aSEli Cohen if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) { 1206938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(mdev, block_lb_mc)) { 1207f360d88aSEli Cohen mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n"); 1208f360d88aSEli Cohen return -EINVAL; 1209f360d88aSEli Cohen } else { 1210f360d88aSEli Cohen qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK; 1211f360d88aSEli Cohen } 1212f360d88aSEli Cohen } 1213f360d88aSEli Cohen 1214051f2630SLeon Romanovsky if (init_attr->create_flags & 1215051f2630SLeon Romanovsky (IB_QP_CREATE_CROSS_CHANNEL | 1216051f2630SLeon Romanovsky IB_QP_CREATE_MANAGED_SEND | 1217051f2630SLeon Romanovsky IB_QP_CREATE_MANAGED_RECV)) { 1218051f2630SLeon Romanovsky if (!MLX5_CAP_GEN(mdev, cd)) { 1219051f2630SLeon Romanovsky mlx5_ib_dbg(dev, "cross-channel isn't supported\n"); 1220051f2630SLeon Romanovsky return -EINVAL; 1221051f2630SLeon Romanovsky } 1222051f2630SLeon Romanovsky if (init_attr->create_flags & IB_QP_CREATE_CROSS_CHANNEL) 1223051f2630SLeon Romanovsky qp->flags |= MLX5_IB_QP_CROSS_CHANNEL; 1224051f2630SLeon Romanovsky if (init_attr->create_flags & IB_QP_CREATE_MANAGED_SEND) 1225051f2630SLeon Romanovsky qp->flags |= MLX5_IB_QP_MANAGED_SEND; 1226051f2630SLeon Romanovsky if (init_attr->create_flags & IB_QP_CREATE_MANAGED_RECV) 1227051f2630SLeon Romanovsky qp->flags |= MLX5_IB_QP_MANAGED_RECV; 1228051f2630SLeon Romanovsky } 1229e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) 1230e126ba97SEli Cohen qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE; 1231e126ba97SEli Cohen 1232e126ba97SEli Cohen if (pd && pd->uobject) { 1233e126ba97SEli Cohen if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { 1234e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 1235e126ba97SEli Cohen return -EFAULT; 1236e126ba97SEli Cohen } 1237e126ba97SEli Cohen 1238cfb5e088SHaggai Abramovsky err = get_qp_user_index(to_mucontext(pd->uobject->context), 1239cfb5e088SHaggai Abramovsky &ucmd, udata->inlen, &uidx); 1240cfb5e088SHaggai Abramovsky if (err) 1241cfb5e088SHaggai Abramovsky return err; 1242cfb5e088SHaggai Abramovsky 1243e126ba97SEli Cohen qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); 1244e126ba97SEli Cohen qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); 1245e126ba97SEli Cohen } else { 1246e126ba97SEli Cohen qp->wq_sig = !!wq_signature; 1247e126ba97SEli Cohen } 1248e126ba97SEli Cohen 1249e126ba97SEli Cohen qp->has_rq = qp_has_rq(init_attr); 1250e126ba97SEli Cohen err = set_rq_size(dev, &init_attr->cap, qp->has_rq, 1251e126ba97SEli Cohen qp, (pd && pd->uobject) ? &ucmd : NULL); 1252e126ba97SEli Cohen if (err) { 1253e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 1254e126ba97SEli Cohen return err; 1255e126ba97SEli Cohen } 1256e126ba97SEli Cohen 1257e126ba97SEli Cohen if (pd) { 1258e126ba97SEli Cohen if (pd->uobject) { 1259938fe83cSSaeed Mahameed __u32 max_wqes = 1260938fe83cSSaeed Mahameed 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); 1261e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count); 1262e126ba97SEli Cohen if (ucmd.rq_wqe_shift != qp->rq.wqe_shift || 1263e126ba97SEli Cohen ucmd.rq_wqe_count != qp->rq.wqe_cnt) { 1264e126ba97SEli Cohen mlx5_ib_dbg(dev, "invalid rq params\n"); 1265e126ba97SEli Cohen return -EINVAL; 1266e126ba97SEli Cohen } 1267938fe83cSSaeed Mahameed if (ucmd.sq_wqe_count > max_wqes) { 1268e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n", 1269938fe83cSSaeed Mahameed ucmd.sq_wqe_count, max_wqes); 1270e126ba97SEli Cohen return -EINVAL; 1271e126ba97SEli Cohen } 12720fb2ed66Smajd@mellanox.com err = create_user_qp(dev, pd, qp, udata, init_attr, &in, 12730fb2ed66Smajd@mellanox.com &resp, &inlen, base); 1274e126ba97SEli Cohen if (err) 1275e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 1276e126ba97SEli Cohen } else { 127719098df2Smajd@mellanox.com err = create_kernel_qp(dev, init_attr, qp, &in, &inlen, 127819098df2Smajd@mellanox.com base); 1279e126ba97SEli Cohen if (err) 1280e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 1281e126ba97SEli Cohen } 1282e126ba97SEli Cohen 1283e126ba97SEli Cohen if (err) 1284e126ba97SEli Cohen return err; 1285e126ba97SEli Cohen } else { 1286e126ba97SEli Cohen in = mlx5_vzalloc(sizeof(*in)); 1287e126ba97SEli Cohen if (!in) 1288e126ba97SEli Cohen return -ENOMEM; 1289e126ba97SEli Cohen 1290e126ba97SEli Cohen qp->create_type = MLX5_QP_EMPTY; 1291e126ba97SEli Cohen } 1292e126ba97SEli Cohen 1293e126ba97SEli Cohen if (is_sqp(init_attr->qp_type)) 1294e126ba97SEli Cohen qp->port = init_attr->port_num; 1295e126ba97SEli Cohen 1296e126ba97SEli Cohen in->ctx.flags = cpu_to_be32(to_mlx5_st(init_attr->qp_type) << 16 | 1297e126ba97SEli Cohen MLX5_QP_PM_MIGRATED << 11); 1298e126ba97SEli Cohen 1299e126ba97SEli Cohen if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR) 1300e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(to_mpd(pd ? pd : devr->p0)->pdn); 1301e126ba97SEli Cohen else 1302e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(MLX5_QP_LAT_SENSITIVE); 1303e126ba97SEli Cohen 1304e126ba97SEli Cohen if (qp->wq_sig) 1305e126ba97SEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_ENABLE_SIG); 1306e126ba97SEli Cohen 1307f360d88aSEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 1308f360d88aSEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_BLOCK_MCAST); 1309f360d88aSEli Cohen 1310051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL) 1311051f2630SLeon Romanovsky in->ctx.params2 |= cpu_to_be32(MLX5_QP_BIT_CC_MASTER); 1312051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_SEND) 1313051f2630SLeon Romanovsky in->ctx.params2 |= cpu_to_be32(MLX5_QP_BIT_CC_SLAVE_SEND); 1314051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_RECV) 1315051f2630SLeon Romanovsky in->ctx.params2 |= cpu_to_be32(MLX5_QP_BIT_CC_SLAVE_RECV); 1316051f2630SLeon Romanovsky 1317e126ba97SEli Cohen if (qp->scat_cqe && is_connected(init_attr->qp_type)) { 1318e126ba97SEli Cohen int rcqe_sz; 1319e126ba97SEli Cohen int scqe_sz; 1320e126ba97SEli Cohen 1321e126ba97SEli Cohen rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq); 1322e126ba97SEli Cohen scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq); 1323e126ba97SEli Cohen 1324e126ba97SEli Cohen if (rcqe_sz == 128) 1325e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA64_CQE; 1326e126ba97SEli Cohen else 1327e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA32_CQE; 1328e126ba97SEli Cohen 1329e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) { 1330e126ba97SEli Cohen if (scqe_sz == 128) 1331e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA64_CQE; 1332e126ba97SEli Cohen else 1333e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA32_CQE; 1334e126ba97SEli Cohen } 1335e126ba97SEli Cohen } 1336e126ba97SEli Cohen 1337e126ba97SEli Cohen if (qp->rq.wqe_cnt) { 1338e126ba97SEli Cohen in->ctx.rq_size_stride = (qp->rq.wqe_shift - 4); 1339e126ba97SEli Cohen in->ctx.rq_size_stride |= ilog2(qp->rq.wqe_cnt) << 3; 1340e126ba97SEli Cohen } 1341e126ba97SEli Cohen 1342e126ba97SEli Cohen in->ctx.rq_type_srqn = get_rx_type(qp, init_attr); 1343e126ba97SEli Cohen 1344e126ba97SEli Cohen if (qp->sq.wqe_cnt) 1345e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(ilog2(qp->sq.wqe_cnt) << 11); 1346e126ba97SEli Cohen else 1347e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(0x8000); 1348e126ba97SEli Cohen 1349e126ba97SEli Cohen /* Set default resources */ 1350e126ba97SEli Cohen switch (init_attr->qp_type) { 1351e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1352e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1353e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1354e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1355e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(init_attr->xrcd)->xrcdn); 1356e126ba97SEli Cohen break; 1357e126ba97SEli Cohen case IB_QPT_XRC_INI: 1358e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 1359e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 1360e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 1361e126ba97SEli Cohen break; 1362e126ba97SEli Cohen default: 1363e126ba97SEli Cohen if (init_attr->srq) { 1364e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x0)->xrcdn); 1365e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(init_attr->srq)->msrq.srqn); 1366e126ba97SEli Cohen } else { 1367e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 13684aa17b28SHaggai Abramonvsky in->ctx.rq_type_srqn |= 13694aa17b28SHaggai Abramonvsky cpu_to_be32(to_msrq(devr->s1)->msrq.srqn); 1370e126ba97SEli Cohen } 1371e126ba97SEli Cohen } 1372e126ba97SEli Cohen 1373e126ba97SEli Cohen if (init_attr->send_cq) 1374e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(init_attr->send_cq)->mcq.cqn); 1375e126ba97SEli Cohen 1376e126ba97SEli Cohen if (init_attr->recv_cq) 1377e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(init_attr->recv_cq)->mcq.cqn); 1378e126ba97SEli Cohen 1379e126ba97SEli Cohen in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); 1380e126ba97SEli Cohen 1381cfb5e088SHaggai Abramovsky if (MLX5_CAP_GEN(mdev, cqe_version) == MLX5_CQE_VERSION_V1) { 1382cfb5e088SHaggai Abramovsky qpc = MLX5_ADDR_OF(create_qp_in, in, qpc); 1383cfb5e088SHaggai Abramovsky /* 0xffffff means we ask to work with cqe version 0 */ 1384cfb5e088SHaggai Abramovsky MLX5_SET(qpc, qpc, user_index, uidx); 1385cfb5e088SHaggai Abramovsky } 1386cfb5e088SHaggai Abramovsky 13870fb2ed66Smajd@mellanox.com if (init_attr->qp_type == IB_QPT_RAW_PACKET) { 13880fb2ed66Smajd@mellanox.com qp->raw_packet_qp.sq.ubuffer.buf_addr = ucmd.sq_buf_addr; 13890fb2ed66Smajd@mellanox.com raw_packet_qp_copy_info(qp, &qp->raw_packet_qp); 13900fb2ed66Smajd@mellanox.com err = create_raw_packet_qp(dev, qp, in, pd); 13910fb2ed66Smajd@mellanox.com } else { 139219098df2Smajd@mellanox.com err = mlx5_core_create_qp(dev->mdev, &base->mqp, in, inlen); 13930fb2ed66Smajd@mellanox.com } 13940fb2ed66Smajd@mellanox.com 1395e126ba97SEli Cohen if (err) { 1396e126ba97SEli Cohen mlx5_ib_dbg(dev, "create qp failed\n"); 1397e126ba97SEli Cohen goto err_create; 1398e126ba97SEli Cohen } 1399e126ba97SEli Cohen 1400479163f4SAl Viro kvfree(in); 1401e126ba97SEli Cohen 140219098df2Smajd@mellanox.com base->container_mibqp = qp; 140319098df2Smajd@mellanox.com base->mqp.event = mlx5_ib_qp_event; 1404e126ba97SEli Cohen 1405e126ba97SEli Cohen return 0; 1406e126ba97SEli Cohen 1407e126ba97SEli Cohen err_create: 1408e126ba97SEli Cohen if (qp->create_type == MLX5_QP_USER) 140919098df2Smajd@mellanox.com destroy_qp_user(pd, qp, base); 1410e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_KERNEL) 1411e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1412e126ba97SEli Cohen 1413479163f4SAl Viro kvfree(in); 1414e126ba97SEli Cohen return err; 1415e126ba97SEli Cohen } 1416e126ba97SEli Cohen 1417e126ba97SEli Cohen static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1418e126ba97SEli Cohen __acquires(&send_cq->lock) __acquires(&recv_cq->lock) 1419e126ba97SEli Cohen { 1420e126ba97SEli Cohen if (send_cq) { 1421e126ba97SEli Cohen if (recv_cq) { 1422e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1423e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1424e126ba97SEli Cohen spin_lock_nested(&recv_cq->lock, 1425e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1426e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1427e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 1428e126ba97SEli Cohen __acquire(&recv_cq->lock); 1429e126ba97SEli Cohen } else { 1430e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 1431e126ba97SEli Cohen spin_lock_nested(&send_cq->lock, 1432e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 1433e126ba97SEli Cohen } 1434e126ba97SEli Cohen } else { 1435e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 14366a4f139aSEli Cohen __acquire(&recv_cq->lock); 1437e126ba97SEli Cohen } 1438e126ba97SEli Cohen } else if (recv_cq) { 1439e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 14406a4f139aSEli Cohen __acquire(&send_cq->lock); 14416a4f139aSEli Cohen } else { 14426a4f139aSEli Cohen __acquire(&send_cq->lock); 14436a4f139aSEli Cohen __acquire(&recv_cq->lock); 1444e126ba97SEli Cohen } 1445e126ba97SEli Cohen } 1446e126ba97SEli Cohen 1447e126ba97SEli Cohen static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 1448e126ba97SEli Cohen __releases(&send_cq->lock) __releases(&recv_cq->lock) 1449e126ba97SEli Cohen { 1450e126ba97SEli Cohen if (send_cq) { 1451e126ba97SEli Cohen if (recv_cq) { 1452e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 1453e126ba97SEli Cohen spin_unlock(&recv_cq->lock); 1454e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1455e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 1456e126ba97SEli Cohen __release(&recv_cq->lock); 1457e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1458e126ba97SEli Cohen } else { 1459e126ba97SEli Cohen spin_unlock(&send_cq->lock); 1460e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 1461e126ba97SEli Cohen } 1462e126ba97SEli Cohen } else { 14636a4f139aSEli Cohen __release(&recv_cq->lock); 1464e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 1465e126ba97SEli Cohen } 1466e126ba97SEli Cohen } else if (recv_cq) { 14676a4f139aSEli Cohen __release(&send_cq->lock); 1468e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 14696a4f139aSEli Cohen } else { 14706a4f139aSEli Cohen __release(&recv_cq->lock); 14716a4f139aSEli Cohen __release(&send_cq->lock); 1472e126ba97SEli Cohen } 1473e126ba97SEli Cohen } 1474e126ba97SEli Cohen 1475e126ba97SEli Cohen static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp) 1476e126ba97SEli Cohen { 1477e126ba97SEli Cohen return to_mpd(qp->ibqp.pd); 1478e126ba97SEli Cohen } 1479e126ba97SEli Cohen 1480e126ba97SEli Cohen static void get_cqs(struct mlx5_ib_qp *qp, 1481e126ba97SEli Cohen struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq) 1482e126ba97SEli Cohen { 1483e126ba97SEli Cohen switch (qp->ibqp.qp_type) { 1484e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1485e126ba97SEli Cohen *send_cq = NULL; 1486e126ba97SEli Cohen *recv_cq = NULL; 1487e126ba97SEli Cohen break; 1488e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1489e126ba97SEli Cohen case IB_QPT_XRC_INI: 1490e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1491e126ba97SEli Cohen *recv_cq = NULL; 1492e126ba97SEli Cohen break; 1493e126ba97SEli Cohen 1494e126ba97SEli Cohen case IB_QPT_SMI: 1495e126ba97SEli Cohen case IB_QPT_GSI: 1496e126ba97SEli Cohen case IB_QPT_RC: 1497e126ba97SEli Cohen case IB_QPT_UC: 1498e126ba97SEli Cohen case IB_QPT_UD: 1499e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1500e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 15010fb2ed66Smajd@mellanox.com case IB_QPT_RAW_PACKET: 1502e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 1503e126ba97SEli Cohen *recv_cq = to_mcq(qp->ibqp.recv_cq); 1504e126ba97SEli Cohen break; 1505e126ba97SEli Cohen 1506e126ba97SEli Cohen case IB_QPT_MAX: 1507e126ba97SEli Cohen default: 1508e126ba97SEli Cohen *send_cq = NULL; 1509e126ba97SEli Cohen *recv_cq = NULL; 1510e126ba97SEli Cohen break; 1511e126ba97SEli Cohen } 1512e126ba97SEli Cohen } 1513e126ba97SEli Cohen 1514e126ba97SEli Cohen static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 1515e126ba97SEli Cohen { 1516e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 151719098df2Smajd@mellanox.com struct mlx5_ib_qp_base *base = &qp->trans_qp.base; 15180fb2ed66Smajd@mellanox.com struct mlx5_modify_qp_mbox_in *in; 1519e126ba97SEli Cohen int err; 1520e126ba97SEli Cohen 15210fb2ed66Smajd@mellanox.com base = qp->ibqp.qp_type == IB_QPT_RAW_PACKET ? 15220fb2ed66Smajd@mellanox.com &qp->raw_packet_qp.rq.base : 15230fb2ed66Smajd@mellanox.com &qp->trans_qp.base; 15240fb2ed66Smajd@mellanox.com 1525e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1526e126ba97SEli Cohen if (!in) 1527e126ba97SEli Cohen return; 15287bef7ad2SEli Cohen 15296aec21f6SHaggai Eran if (qp->state != IB_QPS_RESET) { 15306aec21f6SHaggai Eran mlx5_ib_qp_disable_pagefaults(qp); 15319603b61dSJack Morgenstein if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state), 153219098df2Smajd@mellanox.com MLX5_QP_STATE_RST, in, 0, 153319098df2Smajd@mellanox.com &base->mqp)) 1534e126ba97SEli Cohen mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n", 153519098df2Smajd@mellanox.com base->mqp.qpn); 15366aec21f6SHaggai Eran } 1537e126ba97SEli Cohen 1538e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1539e126ba97SEli Cohen 1540e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) { 1541e126ba97SEli Cohen mlx5_ib_lock_cqs(send_cq, recv_cq); 154219098df2Smajd@mellanox.com __mlx5_ib_cq_clean(recv_cq, base->mqp.qpn, 1543e126ba97SEli Cohen qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 1544e126ba97SEli Cohen if (send_cq != recv_cq) 154519098df2Smajd@mellanox.com __mlx5_ib_cq_clean(send_cq, base->mqp.qpn, 154619098df2Smajd@mellanox.com NULL); 1547e126ba97SEli Cohen mlx5_ib_unlock_cqs(send_cq, recv_cq); 1548e126ba97SEli Cohen } 1549e126ba97SEli Cohen 15500fb2ed66Smajd@mellanox.com if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) { 15510fb2ed66Smajd@mellanox.com destroy_raw_packet_qp(dev, qp); 15520fb2ed66Smajd@mellanox.com } else { 155319098df2Smajd@mellanox.com err = mlx5_core_destroy_qp(dev->mdev, &base->mqp); 1554e126ba97SEli Cohen if (err) 15550fb2ed66Smajd@mellanox.com mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", 15560fb2ed66Smajd@mellanox.com base->mqp.qpn); 15570fb2ed66Smajd@mellanox.com } 1558e126ba97SEli Cohen 15590fb2ed66Smajd@mellanox.com kfree(in); 1560e126ba97SEli Cohen 1561e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) 1562e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1563e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_USER) 156419098df2Smajd@mellanox.com destroy_qp_user(&get_pd(qp)->ibpd, qp, base); 1565e126ba97SEli Cohen } 1566e126ba97SEli Cohen 1567e126ba97SEli Cohen static const char *ib_qp_type_str(enum ib_qp_type type) 1568e126ba97SEli Cohen { 1569e126ba97SEli Cohen switch (type) { 1570e126ba97SEli Cohen case IB_QPT_SMI: 1571e126ba97SEli Cohen return "IB_QPT_SMI"; 1572e126ba97SEli Cohen case IB_QPT_GSI: 1573e126ba97SEli Cohen return "IB_QPT_GSI"; 1574e126ba97SEli Cohen case IB_QPT_RC: 1575e126ba97SEli Cohen return "IB_QPT_RC"; 1576e126ba97SEli Cohen case IB_QPT_UC: 1577e126ba97SEli Cohen return "IB_QPT_UC"; 1578e126ba97SEli Cohen case IB_QPT_UD: 1579e126ba97SEli Cohen return "IB_QPT_UD"; 1580e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1581e126ba97SEli Cohen return "IB_QPT_RAW_IPV6"; 1582e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1583e126ba97SEli Cohen return "IB_QPT_RAW_ETHERTYPE"; 1584e126ba97SEli Cohen case IB_QPT_XRC_INI: 1585e126ba97SEli Cohen return "IB_QPT_XRC_INI"; 1586e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1587e126ba97SEli Cohen return "IB_QPT_XRC_TGT"; 1588e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1589e126ba97SEli Cohen return "IB_QPT_RAW_PACKET"; 1590e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1591e126ba97SEli Cohen return "MLX5_IB_QPT_REG_UMR"; 1592e126ba97SEli Cohen case IB_QPT_MAX: 1593e126ba97SEli Cohen default: 1594e126ba97SEli Cohen return "Invalid QP type"; 1595e126ba97SEli Cohen } 1596e126ba97SEli Cohen } 1597e126ba97SEli Cohen 1598e126ba97SEli Cohen struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1599e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1600e126ba97SEli Cohen struct ib_udata *udata) 1601e126ba97SEli Cohen { 1602e126ba97SEli Cohen struct mlx5_ib_dev *dev; 1603e126ba97SEli Cohen struct mlx5_ib_qp *qp; 1604e126ba97SEli Cohen u16 xrcdn = 0; 1605e126ba97SEli Cohen int err; 1606e126ba97SEli Cohen 1607e126ba97SEli Cohen if (pd) { 1608e126ba97SEli Cohen dev = to_mdev(pd->device); 1609e126ba97SEli Cohen } else { 1610e126ba97SEli Cohen /* being cautious here */ 1611e126ba97SEli Cohen if (init_attr->qp_type != IB_QPT_XRC_TGT && 1612e126ba97SEli Cohen init_attr->qp_type != MLX5_IB_QPT_REG_UMR) { 1613e126ba97SEli Cohen pr_warn("%s: no PD for transport %s\n", __func__, 1614e126ba97SEli Cohen ib_qp_type_str(init_attr->qp_type)); 1615e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1616e126ba97SEli Cohen } 1617e126ba97SEli Cohen dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device); 16180fb2ed66Smajd@mellanox.com 16190fb2ed66Smajd@mellanox.com if (init_attr->qp_type == IB_QPT_RAW_PACKET) { 16200fb2ed66Smajd@mellanox.com if (!pd->uobject) { 16210fb2ed66Smajd@mellanox.com mlx5_ib_dbg(dev, "Raw Packet QP is not supported for kernel consumers\n"); 16220fb2ed66Smajd@mellanox.com return ERR_PTR(-EINVAL); 16230fb2ed66Smajd@mellanox.com } else if (!to_mucontext(pd->uobject->context)->cqe_version) { 16240fb2ed66Smajd@mellanox.com mlx5_ib_dbg(dev, "Raw Packet QP is only supported for CQE version > 0\n"); 16250fb2ed66Smajd@mellanox.com return ERR_PTR(-EINVAL); 16260fb2ed66Smajd@mellanox.com } 16270fb2ed66Smajd@mellanox.com } 1628e126ba97SEli Cohen } 1629e126ba97SEli Cohen 1630e126ba97SEli Cohen switch (init_attr->qp_type) { 1631e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1632e126ba97SEli Cohen case IB_QPT_XRC_INI: 1633938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(dev->mdev, xrc)) { 1634e126ba97SEli Cohen mlx5_ib_dbg(dev, "XRC not supported\n"); 1635e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 1636e126ba97SEli Cohen } 1637e126ba97SEli Cohen init_attr->recv_cq = NULL; 1638e126ba97SEli Cohen if (init_attr->qp_type == IB_QPT_XRC_TGT) { 1639e126ba97SEli Cohen xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn; 1640e126ba97SEli Cohen init_attr->send_cq = NULL; 1641e126ba97SEli Cohen } 1642e126ba97SEli Cohen 1643e126ba97SEli Cohen /* fall through */ 16440fb2ed66Smajd@mellanox.com case IB_QPT_RAW_PACKET: 1645e126ba97SEli Cohen case IB_QPT_RC: 1646e126ba97SEli Cohen case IB_QPT_UC: 1647e126ba97SEli Cohen case IB_QPT_UD: 1648e126ba97SEli Cohen case IB_QPT_SMI: 1649e126ba97SEli Cohen case IB_QPT_GSI: 1650e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1651e126ba97SEli Cohen qp = kzalloc(sizeof(*qp), GFP_KERNEL); 1652e126ba97SEli Cohen if (!qp) 1653e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 1654e126ba97SEli Cohen 1655e126ba97SEli Cohen err = create_qp_common(dev, pd, init_attr, udata, qp); 1656e126ba97SEli Cohen if (err) { 1657e126ba97SEli Cohen mlx5_ib_dbg(dev, "create_qp_common failed\n"); 1658e126ba97SEli Cohen kfree(qp); 1659e126ba97SEli Cohen return ERR_PTR(err); 1660e126ba97SEli Cohen } 1661e126ba97SEli Cohen 1662e126ba97SEli Cohen if (is_qp0(init_attr->qp_type)) 1663e126ba97SEli Cohen qp->ibqp.qp_num = 0; 1664e126ba97SEli Cohen else if (is_qp1(init_attr->qp_type)) 1665e126ba97SEli Cohen qp->ibqp.qp_num = 1; 1666e126ba97SEli Cohen else 166719098df2Smajd@mellanox.com qp->ibqp.qp_num = qp->trans_qp.base.mqp.qpn; 1668e126ba97SEli Cohen 1669e126ba97SEli Cohen mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", 167019098df2Smajd@mellanox.com qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn, 167119098df2Smajd@mellanox.com to_mcq(init_attr->recv_cq)->mcq.cqn, 1672e126ba97SEli Cohen to_mcq(init_attr->send_cq)->mcq.cqn); 1673e126ba97SEli Cohen 167419098df2Smajd@mellanox.com qp->trans_qp.xrcdn = xrcdn; 1675e126ba97SEli Cohen 1676e126ba97SEli Cohen break; 1677e126ba97SEli Cohen 1678e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1679e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1680e126ba97SEli Cohen case IB_QPT_MAX: 1681e126ba97SEli Cohen default: 1682e126ba97SEli Cohen mlx5_ib_dbg(dev, "unsupported qp type %d\n", 1683e126ba97SEli Cohen init_attr->qp_type); 1684e126ba97SEli Cohen /* Don't support raw QPs */ 1685e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1686e126ba97SEli Cohen } 1687e126ba97SEli Cohen 1688e126ba97SEli Cohen return &qp->ibqp; 1689e126ba97SEli Cohen } 1690e126ba97SEli Cohen 1691e126ba97SEli Cohen int mlx5_ib_destroy_qp(struct ib_qp *qp) 1692e126ba97SEli Cohen { 1693e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(qp->device); 1694e126ba97SEli Cohen struct mlx5_ib_qp *mqp = to_mqp(qp); 1695e126ba97SEli Cohen 1696e126ba97SEli Cohen destroy_qp_common(dev, mqp); 1697e126ba97SEli Cohen 1698e126ba97SEli Cohen kfree(mqp); 1699e126ba97SEli Cohen 1700e126ba97SEli Cohen return 0; 1701e126ba97SEli Cohen } 1702e126ba97SEli Cohen 1703e126ba97SEli Cohen static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr, 1704e126ba97SEli Cohen int attr_mask) 1705e126ba97SEli Cohen { 1706e126ba97SEli Cohen u32 hw_access_flags = 0; 1707e126ba97SEli Cohen u8 dest_rd_atomic; 1708e126ba97SEli Cohen u32 access_flags; 1709e126ba97SEli Cohen 1710e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1711e126ba97SEli Cohen dest_rd_atomic = attr->max_dest_rd_atomic; 1712e126ba97SEli Cohen else 171319098df2Smajd@mellanox.com dest_rd_atomic = qp->trans_qp.resp_depth; 1714e126ba97SEli Cohen 1715e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1716e126ba97SEli Cohen access_flags = attr->qp_access_flags; 1717e126ba97SEli Cohen else 171819098df2Smajd@mellanox.com access_flags = qp->trans_qp.atomic_rd_en; 1719e126ba97SEli Cohen 1720e126ba97SEli Cohen if (!dest_rd_atomic) 1721e126ba97SEli Cohen access_flags &= IB_ACCESS_REMOTE_WRITE; 1722e126ba97SEli Cohen 1723e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_READ) 1724e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RRE; 1725e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_ATOMIC) 1726e126ba97SEli Cohen hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX); 1727e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_WRITE) 1728e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RWE; 1729e126ba97SEli Cohen 1730e126ba97SEli Cohen return cpu_to_be32(hw_access_flags); 1731e126ba97SEli Cohen } 1732e126ba97SEli Cohen 1733e126ba97SEli Cohen enum { 1734e126ba97SEli Cohen MLX5_PATH_FLAG_FL = 1 << 0, 1735e126ba97SEli Cohen MLX5_PATH_FLAG_FREE_AR = 1 << 1, 1736e126ba97SEli Cohen MLX5_PATH_FLAG_COUNTER = 1 << 2, 1737e126ba97SEli Cohen }; 1738e126ba97SEli Cohen 1739e126ba97SEli Cohen static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) 1740e126ba97SEli Cohen { 1741e126ba97SEli Cohen if (rate == IB_RATE_PORT_CURRENT) { 1742e126ba97SEli Cohen return 0; 1743e126ba97SEli Cohen } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) { 1744e126ba97SEli Cohen return -EINVAL; 1745e126ba97SEli Cohen } else { 1746e126ba97SEli Cohen while (rate != IB_RATE_2_5_GBPS && 1747e126ba97SEli Cohen !(1 << (rate + MLX5_STAT_RATE_OFFSET) & 1748938fe83cSSaeed Mahameed MLX5_CAP_GEN(dev->mdev, stat_rate_support))) 1749e126ba97SEli Cohen --rate; 1750e126ba97SEli Cohen } 1751e126ba97SEli Cohen 1752e126ba97SEli Cohen return rate + MLX5_STAT_RATE_OFFSET; 1753e126ba97SEli Cohen } 1754e126ba97SEli Cohen 175575850d0bSmajd@mellanox.com static int modify_raw_packet_eth_prio(struct mlx5_core_dev *dev, 175675850d0bSmajd@mellanox.com struct mlx5_ib_sq *sq, u8 sl) 175775850d0bSmajd@mellanox.com { 175875850d0bSmajd@mellanox.com void *in; 175975850d0bSmajd@mellanox.com void *tisc; 176075850d0bSmajd@mellanox.com int inlen; 176175850d0bSmajd@mellanox.com int err; 176275850d0bSmajd@mellanox.com 176375850d0bSmajd@mellanox.com inlen = MLX5_ST_SZ_BYTES(modify_tis_in); 176475850d0bSmajd@mellanox.com in = mlx5_vzalloc(inlen); 176575850d0bSmajd@mellanox.com if (!in) 176675850d0bSmajd@mellanox.com return -ENOMEM; 176775850d0bSmajd@mellanox.com 176875850d0bSmajd@mellanox.com MLX5_SET(modify_tis_in, in, bitmask.prio, 1); 176975850d0bSmajd@mellanox.com 177075850d0bSmajd@mellanox.com tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx); 177175850d0bSmajd@mellanox.com MLX5_SET(tisc, tisc, prio, ((sl & 0x7) << 1)); 177275850d0bSmajd@mellanox.com 177375850d0bSmajd@mellanox.com err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen); 177475850d0bSmajd@mellanox.com 177575850d0bSmajd@mellanox.com kvfree(in); 177675850d0bSmajd@mellanox.com 177775850d0bSmajd@mellanox.com return err; 177875850d0bSmajd@mellanox.com } 177975850d0bSmajd@mellanox.com 178075850d0bSmajd@mellanox.com static int mlx5_set_path(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, 178175850d0bSmajd@mellanox.com const struct ib_ah_attr *ah, 1782e126ba97SEli Cohen struct mlx5_qp_path *path, u8 port, int attr_mask, 1783e126ba97SEli Cohen u32 path_flags, const struct ib_qp_attr *attr) 1784e126ba97SEli Cohen { 17852811ba51SAchiad Shochat enum rdma_link_layer ll = rdma_port_get_link_layer(&dev->ib_dev, port); 1786e126ba97SEli Cohen int err; 1787e126ba97SEli Cohen 1788e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1789e126ba97SEli Cohen path->pkey_index = attr->pkey_index; 1790e126ba97SEli Cohen 1791e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 1792938fe83cSSaeed Mahameed if (ah->grh.sgid_index >= 1793938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].gid_table_len) { 1794f4f01b54SJoe Perches pr_err("sgid_index (%u) too large. max is %d\n", 1795938fe83cSSaeed Mahameed ah->grh.sgid_index, 1796938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].gid_table_len); 1797f83b4263SEli Cohen return -EINVAL; 1798f83b4263SEli Cohen } 17992811ba51SAchiad Shochat } 18002811ba51SAchiad Shochat 18012811ba51SAchiad Shochat if (ll == IB_LINK_LAYER_ETHERNET) { 18022811ba51SAchiad Shochat if (!(ah->ah_flags & IB_AH_GRH)) 18032811ba51SAchiad Shochat return -EINVAL; 18042811ba51SAchiad Shochat memcpy(path->rmac, ah->dmac, sizeof(ah->dmac)); 18052811ba51SAchiad Shochat path->udp_sport = mlx5_get_roce_udp_sport(dev, port, 18062811ba51SAchiad Shochat ah->grh.sgid_index); 18072811ba51SAchiad Shochat path->dci_cfi_prio_sl = (ah->sl & 0x7) << 4; 18082811ba51SAchiad Shochat } else { 18092811ba51SAchiad Shochat path->fl = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0; 18102811ba51SAchiad Shochat path->free_ar = (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x80 : 18112811ba51SAchiad Shochat 0; 18122811ba51SAchiad Shochat path->rlid = cpu_to_be16(ah->dlid); 18132811ba51SAchiad Shochat path->grh_mlid = ah->src_path_bits & 0x7f; 18142811ba51SAchiad Shochat if (ah->ah_flags & IB_AH_GRH) 1815e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 18162811ba51SAchiad Shochat path->dci_cfi_prio_sl = ah->sl & 0xf; 18172811ba51SAchiad Shochat } 18182811ba51SAchiad Shochat 18192811ba51SAchiad Shochat if (ah->ah_flags & IB_AH_GRH) { 1820e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1821e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1822e126ba97SEli Cohen path->tclass_flowlabel = 1823e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1824e126ba97SEli Cohen (ah->grh.flow_label)); 1825e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1826e126ba97SEli Cohen } 1827e126ba97SEli Cohen 1828e126ba97SEli Cohen err = ib_rate_to_mlx5(dev, ah->static_rate); 1829e126ba97SEli Cohen if (err < 0) 1830e126ba97SEli Cohen return err; 1831e126ba97SEli Cohen path->static_rate = err; 1832e126ba97SEli Cohen path->port = port; 1833e126ba97SEli Cohen 1834e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1835e126ba97SEli Cohen path->ackto_lt = attr->timeout << 3; 1836e126ba97SEli Cohen 183775850d0bSmajd@mellanox.com if ((qp->ibqp.qp_type == IB_QPT_RAW_PACKET) && qp->sq.wqe_cnt) 183875850d0bSmajd@mellanox.com return modify_raw_packet_eth_prio(dev->mdev, 183975850d0bSmajd@mellanox.com &qp->raw_packet_qp.sq, 184075850d0bSmajd@mellanox.com ah->sl & 0xf); 184175850d0bSmajd@mellanox.com 1842e126ba97SEli Cohen return 0; 1843e126ba97SEli Cohen } 1844e126ba97SEli Cohen 1845e126ba97SEli Cohen static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = { 1846e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1847e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1848e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1849e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1850e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1851e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1852e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1853e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1854e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1855e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1856e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1857e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY | 1858e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1859e126ba97SEli Cohen }, 1860e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1861e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1862e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1863e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1864e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1865e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1866e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1867e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1868e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1869e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1870e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1871e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | 1872e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1873a4774e90SEli Cohen [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1874a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE | 1875a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1876a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1877a4774e90SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1878e126ba97SEli Cohen }, 1879e126ba97SEli Cohen }, 1880e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1881e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1882e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1883e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1884e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1885e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1886e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1887e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT, 1888e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1889e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1890e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1891e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1892e126ba97SEli Cohen }, 1893e126ba97SEli Cohen }, 1894e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1895e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1896e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1897e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1898e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1899e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT | 1900c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1901c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1902e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1903c2a3431eSEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1904c2a3431eSEli Cohen MLX5_QP_OPTPAR_ALT_ADDR_PATH, 1905e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | 1906e126ba97SEli Cohen MLX5_QP_OPTPAR_SRQN | 1907e126ba97SEli Cohen MLX5_QP_OPTPAR_CQN_RCV, 1908e126ba97SEli Cohen }, 1909e126ba97SEli Cohen }, 1910e126ba97SEli Cohen [MLX5_QP_STATE_SQER] = { 1911e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1912e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1913e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, 191475959f56SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE, 1915a4774e90SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT | 1916a4774e90SEli Cohen MLX5_QP_OPTPAR_RWE | 1917a4774e90SEli Cohen MLX5_QP_OPTPAR_RAE | 1918a4774e90SEli Cohen MLX5_QP_OPTPAR_RRE, 1919e126ba97SEli Cohen }, 1920e126ba97SEli Cohen }, 1921e126ba97SEli Cohen }; 1922e126ba97SEli Cohen 1923e126ba97SEli Cohen static int ib_nr_to_mlx5_nr(int ib_mask) 1924e126ba97SEli Cohen { 1925e126ba97SEli Cohen switch (ib_mask) { 1926e126ba97SEli Cohen case IB_QP_STATE: 1927e126ba97SEli Cohen return 0; 1928e126ba97SEli Cohen case IB_QP_CUR_STATE: 1929e126ba97SEli Cohen return 0; 1930e126ba97SEli Cohen case IB_QP_EN_SQD_ASYNC_NOTIFY: 1931e126ba97SEli Cohen return 0; 1932e126ba97SEli Cohen case IB_QP_ACCESS_FLAGS: 1933e126ba97SEli Cohen return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE | 1934e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE; 1935e126ba97SEli Cohen case IB_QP_PKEY_INDEX: 1936e126ba97SEli Cohen return MLX5_QP_OPTPAR_PKEY_INDEX; 1937e126ba97SEli Cohen case IB_QP_PORT: 1938e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRI_PORT; 1939e126ba97SEli Cohen case IB_QP_QKEY: 1940e126ba97SEli Cohen return MLX5_QP_OPTPAR_Q_KEY; 1941e126ba97SEli Cohen case IB_QP_AV: 1942e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH | 1943e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT; 1944e126ba97SEli Cohen case IB_QP_PATH_MTU: 1945e126ba97SEli Cohen return 0; 1946e126ba97SEli Cohen case IB_QP_TIMEOUT: 1947e126ba97SEli Cohen return MLX5_QP_OPTPAR_ACK_TIMEOUT; 1948e126ba97SEli Cohen case IB_QP_RETRY_CNT: 1949e126ba97SEli Cohen return MLX5_QP_OPTPAR_RETRY_COUNT; 1950e126ba97SEli Cohen case IB_QP_RNR_RETRY: 1951e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_RETRY; 1952e126ba97SEli Cohen case IB_QP_RQ_PSN: 1953e126ba97SEli Cohen return 0; 1954e126ba97SEli Cohen case IB_QP_MAX_QP_RD_ATOMIC: 1955e126ba97SEli Cohen return MLX5_QP_OPTPAR_SRA_MAX; 1956e126ba97SEli Cohen case IB_QP_ALT_PATH: 1957e126ba97SEli Cohen return MLX5_QP_OPTPAR_ALT_ADDR_PATH; 1958e126ba97SEli Cohen case IB_QP_MIN_RNR_TIMER: 1959e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_TIMEOUT; 1960e126ba97SEli Cohen case IB_QP_SQ_PSN: 1961e126ba97SEli Cohen return 0; 1962e126ba97SEli Cohen case IB_QP_MAX_DEST_RD_ATOMIC: 1963e126ba97SEli Cohen return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE | 1964e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE; 1965e126ba97SEli Cohen case IB_QP_PATH_MIG_STATE: 1966e126ba97SEli Cohen return MLX5_QP_OPTPAR_PM_STATE; 1967e126ba97SEli Cohen case IB_QP_CAP: 1968e126ba97SEli Cohen return 0; 1969e126ba97SEli Cohen case IB_QP_DEST_QPN: 1970e126ba97SEli Cohen return 0; 1971e126ba97SEli Cohen } 1972e126ba97SEli Cohen return 0; 1973e126ba97SEli Cohen } 1974e126ba97SEli Cohen 1975e126ba97SEli Cohen static int ib_mask_to_mlx5_opt(int ib_mask) 1976e126ba97SEli Cohen { 1977e126ba97SEli Cohen int result = 0; 1978e126ba97SEli Cohen int i; 1979e126ba97SEli Cohen 1980e126ba97SEli Cohen for (i = 0; i < 8 * sizeof(int); i++) { 1981e126ba97SEli Cohen if ((1 << i) & ib_mask) 1982e126ba97SEli Cohen result |= ib_nr_to_mlx5_nr(1 << i); 1983e126ba97SEli Cohen } 1984e126ba97SEli Cohen 1985e126ba97SEli Cohen return result; 1986e126ba97SEli Cohen } 1987e126ba97SEli Cohen 1988e126ba97SEli Cohen static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, 1989e126ba97SEli Cohen const struct ib_qp_attr *attr, int attr_mask, 1990e126ba97SEli Cohen enum ib_qp_state cur_state, enum ib_qp_state new_state) 1991e126ba97SEli Cohen { 1992e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1993e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 199419098df2Smajd@mellanox.com struct mlx5_ib_qp_base *base = &qp->trans_qp.base; 1995e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1996e126ba97SEli Cohen struct mlx5_qp_context *context; 1997e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1998e126ba97SEli Cohen struct mlx5_ib_pd *pd; 1999e126ba97SEli Cohen enum mlx5_qp_state mlx5_cur, mlx5_new; 2000e126ba97SEli Cohen enum mlx5_qp_optpar optpar; 2001e126ba97SEli Cohen int sqd_event; 2002e126ba97SEli Cohen int mlx5_st; 2003e126ba97SEli Cohen int err; 2004e126ba97SEli Cohen 2005e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 2006e126ba97SEli Cohen if (!in) 2007e126ba97SEli Cohen return -ENOMEM; 2008e126ba97SEli Cohen 2009e126ba97SEli Cohen context = &in->ctx; 2010e126ba97SEli Cohen err = to_mlx5_st(ibqp->qp_type); 2011e126ba97SEli Cohen if (err < 0) 2012e126ba97SEli Cohen goto out; 2013e126ba97SEli Cohen 2014e126ba97SEli Cohen context->flags = cpu_to_be32(err << 16); 2015e126ba97SEli Cohen 2016e126ba97SEli Cohen if (!(attr_mask & IB_QP_PATH_MIG_STATE)) { 2017e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 2018e126ba97SEli Cohen } else { 2019e126ba97SEli Cohen switch (attr->path_mig_state) { 2020e126ba97SEli Cohen case IB_MIG_MIGRATED: 2021e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 2022e126ba97SEli Cohen break; 2023e126ba97SEli Cohen case IB_MIG_REARM: 2024e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11); 2025e126ba97SEli Cohen break; 2026e126ba97SEli Cohen case IB_MIG_ARMED: 2027e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11); 2028e126ba97SEli Cohen break; 2029e126ba97SEli Cohen } 2030e126ba97SEli Cohen } 2031e126ba97SEli Cohen 2032e126ba97SEli Cohen if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { 2033e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_256 << 5) | 8; 2034e126ba97SEli Cohen } else if (ibqp->qp_type == IB_QPT_UD || 2035e126ba97SEli Cohen ibqp->qp_type == MLX5_IB_QPT_REG_UMR) { 2036e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_4096 << 5) | 12; 2037e126ba97SEli Cohen } else if (attr_mask & IB_QP_PATH_MTU) { 2038e126ba97SEli Cohen if (attr->path_mtu < IB_MTU_256 || 2039e126ba97SEli Cohen attr->path_mtu > IB_MTU_4096) { 2040e126ba97SEli Cohen mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu); 2041e126ba97SEli Cohen err = -EINVAL; 2042e126ba97SEli Cohen goto out; 2043e126ba97SEli Cohen } 2044938fe83cSSaeed Mahameed context->mtu_msgmax = (attr->path_mtu << 5) | 2045938fe83cSSaeed Mahameed (u8)MLX5_CAP_GEN(dev->mdev, log_max_msg); 2046e126ba97SEli Cohen } 2047e126ba97SEli Cohen 2048e126ba97SEli Cohen if (attr_mask & IB_QP_DEST_QPN) 2049e126ba97SEli Cohen context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num); 2050e126ba97SEli Cohen 2051e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 2052e126ba97SEli Cohen context->pri_path.pkey_index = attr->pkey_index; 2053e126ba97SEli Cohen 2054e126ba97SEli Cohen /* todo implement counter_index functionality */ 2055e126ba97SEli Cohen 2056e126ba97SEli Cohen if (is_sqp(ibqp->qp_type)) 2057e126ba97SEli Cohen context->pri_path.port = qp->port; 2058e126ba97SEli Cohen 2059e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 2060e126ba97SEli Cohen context->pri_path.port = attr->port_num; 2061e126ba97SEli Cohen 2062e126ba97SEli Cohen if (attr_mask & IB_QP_AV) { 206375850d0bSmajd@mellanox.com err = mlx5_set_path(dev, qp, &attr->ah_attr, &context->pri_path, 2064e126ba97SEli Cohen attr_mask & IB_QP_PORT ? attr->port_num : qp->port, 2065e126ba97SEli Cohen attr_mask, 0, attr); 2066e126ba97SEli Cohen if (err) 2067e126ba97SEli Cohen goto out; 2068e126ba97SEli Cohen } 2069e126ba97SEli Cohen 2070e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 2071e126ba97SEli Cohen context->pri_path.ackto_lt |= attr->timeout << 3; 2072e126ba97SEli Cohen 2073e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) { 207475850d0bSmajd@mellanox.com err = mlx5_set_path(dev, qp, &attr->alt_ah_attr, 207575850d0bSmajd@mellanox.com &context->alt_path, 2076e126ba97SEli Cohen attr->alt_port_num, attr_mask, 0, attr); 2077e126ba97SEli Cohen if (err) 2078e126ba97SEli Cohen goto out; 2079e126ba97SEli Cohen } 2080e126ba97SEli Cohen 2081e126ba97SEli Cohen pd = get_pd(qp); 2082e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 2083e126ba97SEli Cohen 2084e126ba97SEli Cohen context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn); 2085e126ba97SEli Cohen context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0; 2086e126ba97SEli Cohen context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0; 2087e126ba97SEli Cohen context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28); 2088e126ba97SEli Cohen 2089e126ba97SEli Cohen if (attr_mask & IB_QP_RNR_RETRY) 2090e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->rnr_retry << 13); 2091e126ba97SEli Cohen 2092e126ba97SEli Cohen if (attr_mask & IB_QP_RETRY_CNT) 2093e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->retry_cnt << 16); 2094e126ba97SEli Cohen 2095e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 2096e126ba97SEli Cohen if (attr->max_rd_atomic) 2097e126ba97SEli Cohen context->params1 |= 2098e126ba97SEli Cohen cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); 2099e126ba97SEli Cohen } 2100e126ba97SEli Cohen 2101e126ba97SEli Cohen if (attr_mask & IB_QP_SQ_PSN) 2102e126ba97SEli Cohen context->next_send_psn = cpu_to_be32(attr->sq_psn); 2103e126ba97SEli Cohen 2104e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 2105e126ba97SEli Cohen if (attr->max_dest_rd_atomic) 2106e126ba97SEli Cohen context->params2 |= 2107e126ba97SEli Cohen cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21); 2108e126ba97SEli Cohen } 2109e126ba97SEli Cohen 2110e126ba97SEli Cohen if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) 2111e126ba97SEli Cohen context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask); 2112e126ba97SEli Cohen 2113e126ba97SEli Cohen if (attr_mask & IB_QP_MIN_RNR_TIMER) 2114e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24); 2115e126ba97SEli Cohen 2116e126ba97SEli Cohen if (attr_mask & IB_QP_RQ_PSN) 2117e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn); 2118e126ba97SEli Cohen 2119e126ba97SEli Cohen if (attr_mask & IB_QP_QKEY) 2120e126ba97SEli Cohen context->qkey = cpu_to_be32(attr->qkey); 2121e126ba97SEli Cohen 2122e126ba97SEli Cohen if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 2123e126ba97SEli Cohen context->db_rec_addr = cpu_to_be64(qp->db.dma); 2124e126ba97SEli Cohen 2125e126ba97SEli Cohen if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && 2126e126ba97SEli Cohen attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify) 2127e126ba97SEli Cohen sqd_event = 1; 2128e126ba97SEli Cohen else 2129e126ba97SEli Cohen sqd_event = 0; 2130e126ba97SEli Cohen 2131e126ba97SEli Cohen if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 2132e126ba97SEli Cohen context->sq_crq_size |= cpu_to_be16(1 << 4); 2133e126ba97SEli Cohen 2134e126ba97SEli Cohen 2135e126ba97SEli Cohen mlx5_cur = to_mlx5_state(cur_state); 2136e126ba97SEli Cohen mlx5_new = to_mlx5_state(new_state); 2137e126ba97SEli Cohen mlx5_st = to_mlx5_st(ibqp->qp_type); 213807c9113fSEli Cohen if (mlx5_st < 0) 2139e126ba97SEli Cohen goto out; 2140e126ba97SEli Cohen 21416aec21f6SHaggai Eran /* If moving to a reset or error state, we must disable page faults on 21426aec21f6SHaggai Eran * this QP and flush all current page faults. Otherwise a stale page 21436aec21f6SHaggai Eran * fault may attempt to work on this QP after it is reset and moved 21446aec21f6SHaggai Eran * again to RTS, and may cause the driver and the device to get out of 21456aec21f6SHaggai Eran * sync. */ 21466aec21f6SHaggai Eran if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR && 21476aec21f6SHaggai Eran (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR)) 21486aec21f6SHaggai Eran mlx5_ib_qp_disable_pagefaults(qp); 21496aec21f6SHaggai Eran 2150e126ba97SEli Cohen optpar = ib_mask_to_mlx5_opt(attr_mask); 2151e126ba97SEli Cohen optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st]; 2152e126ba97SEli Cohen in->optparam = cpu_to_be32(optpar); 21539603b61dSJack Morgenstein err = mlx5_core_qp_modify(dev->mdev, to_mlx5_state(cur_state), 2154e126ba97SEli Cohen to_mlx5_state(new_state), in, sqd_event, 215519098df2Smajd@mellanox.com &base->mqp); 2156e126ba97SEli Cohen if (err) 2157e126ba97SEli Cohen goto out; 2158e126ba97SEli Cohen 21596aec21f6SHaggai Eran if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 21606aec21f6SHaggai Eran mlx5_ib_qp_enable_pagefaults(qp); 21616aec21f6SHaggai Eran 2162e126ba97SEli Cohen qp->state = new_state; 2163e126ba97SEli Cohen 2164e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 216519098df2Smajd@mellanox.com qp->trans_qp.atomic_rd_en = attr->qp_access_flags; 2166e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 216719098df2Smajd@mellanox.com qp->trans_qp.resp_depth = attr->max_dest_rd_atomic; 2168e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 2169e126ba97SEli Cohen qp->port = attr->port_num; 2170e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) 217119098df2Smajd@mellanox.com qp->trans_qp.alt_port = attr->alt_port_num; 2172e126ba97SEli Cohen 2173e126ba97SEli Cohen /* 2174e126ba97SEli Cohen * If we moved a kernel QP to RESET, clean up all old CQ 2175e126ba97SEli Cohen * entries and reinitialize the QP. 2176e126ba97SEli Cohen */ 2177e126ba97SEli Cohen if (new_state == IB_QPS_RESET && !ibqp->uobject) { 217819098df2Smajd@mellanox.com mlx5_ib_cq_clean(recv_cq, base->mqp.qpn, 2179e126ba97SEli Cohen ibqp->srq ? to_msrq(ibqp->srq) : NULL); 2180e126ba97SEli Cohen if (send_cq != recv_cq) 218119098df2Smajd@mellanox.com mlx5_ib_cq_clean(send_cq, base->mqp.qpn, NULL); 2182e126ba97SEli Cohen 2183e126ba97SEli Cohen qp->rq.head = 0; 2184e126ba97SEli Cohen qp->rq.tail = 0; 2185e126ba97SEli Cohen qp->sq.head = 0; 2186e126ba97SEli Cohen qp->sq.tail = 0; 2187e126ba97SEli Cohen qp->sq.cur_post = 0; 2188e126ba97SEli Cohen qp->sq.last_poll = 0; 2189e126ba97SEli Cohen qp->db.db[MLX5_RCV_DBR] = 0; 2190e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = 0; 2191e126ba97SEli Cohen } 2192e126ba97SEli Cohen 2193e126ba97SEli Cohen out: 2194e126ba97SEli Cohen kfree(in); 2195e126ba97SEli Cohen return err; 2196e126ba97SEli Cohen } 2197e126ba97SEli Cohen 2198e126ba97SEli Cohen int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 2199e126ba97SEli Cohen int attr_mask, struct ib_udata *udata) 2200e126ba97SEli Cohen { 2201e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 2202e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2203e126ba97SEli Cohen enum ib_qp_state cur_state, new_state; 2204e126ba97SEli Cohen int err = -EINVAL; 2205e126ba97SEli Cohen int port; 22062811ba51SAchiad Shochat enum rdma_link_layer ll = IB_LINK_LAYER_UNSPECIFIED; 2207e126ba97SEli Cohen 2208e126ba97SEli Cohen mutex_lock(&qp->mutex); 2209e126ba97SEli Cohen 2210e126ba97SEli Cohen cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state; 2211e126ba97SEli Cohen new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state; 2212e126ba97SEli Cohen 22132811ba51SAchiad Shochat if (!(cur_state == new_state && cur_state == IB_QPS_RESET)) { 22142811ba51SAchiad Shochat port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 22152811ba51SAchiad Shochat ll = dev->ib_dev.get_link_layer(&dev->ib_dev, port); 22162811ba51SAchiad Shochat } 22172811ba51SAchiad Shochat 22180fb2ed66Smajd@mellanox.com if (ibqp->qp_type == IB_QPT_RAW_PACKET) { 22190fb2ed66Smajd@mellanox.com err = -EOPNOTSUPP; 22200fb2ed66Smajd@mellanox.com goto out; 22210fb2ed66Smajd@mellanox.com } 22220fb2ed66Smajd@mellanox.com 2223e126ba97SEli Cohen if (ibqp->qp_type != MLX5_IB_QPT_REG_UMR && 2224dd5f03beSMatan Barak !ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask, 22252811ba51SAchiad Shochat ll)) 2226e126ba97SEli Cohen goto out; 2227e126ba97SEli Cohen 2228e126ba97SEli Cohen if ((attr_mask & IB_QP_PORT) && 2229938fe83cSSaeed Mahameed (attr->port_num == 0 || 2230938fe83cSSaeed Mahameed attr->port_num > MLX5_CAP_GEN(dev->mdev, num_ports))) 2231e126ba97SEli Cohen goto out; 2232e126ba97SEli Cohen 2233e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) { 2234e126ba97SEli Cohen port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 2235938fe83cSSaeed Mahameed if (attr->pkey_index >= 2236938fe83cSSaeed Mahameed dev->mdev->port_caps[port - 1].pkey_table_len) 2237e126ba97SEli Cohen goto out; 2238e126ba97SEli Cohen } 2239e126ba97SEli Cohen 2240e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && 2241938fe83cSSaeed Mahameed attr->max_rd_atomic > 2242938fe83cSSaeed Mahameed (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_res_qp))) 2243e126ba97SEli Cohen goto out; 2244e126ba97SEli Cohen 2245e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && 2246938fe83cSSaeed Mahameed attr->max_dest_rd_atomic > 2247938fe83cSSaeed Mahameed (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_req_qp))) 2248e126ba97SEli Cohen goto out; 2249e126ba97SEli Cohen 2250e126ba97SEli Cohen if (cur_state == new_state && cur_state == IB_QPS_RESET) { 2251e126ba97SEli Cohen err = 0; 2252e126ba97SEli Cohen goto out; 2253e126ba97SEli Cohen } 2254e126ba97SEli Cohen 2255e126ba97SEli Cohen err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state); 2256e126ba97SEli Cohen 2257e126ba97SEli Cohen out: 2258e126ba97SEli Cohen mutex_unlock(&qp->mutex); 2259e126ba97SEli Cohen return err; 2260e126ba97SEli Cohen } 2261e126ba97SEli Cohen 2262e126ba97SEli Cohen static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq) 2263e126ba97SEli Cohen { 2264e126ba97SEli Cohen struct mlx5_ib_cq *cq; 2265e126ba97SEli Cohen unsigned cur; 2266e126ba97SEli Cohen 2267e126ba97SEli Cohen cur = wq->head - wq->tail; 2268e126ba97SEli Cohen if (likely(cur + nreq < wq->max_post)) 2269e126ba97SEli Cohen return 0; 2270e126ba97SEli Cohen 2271e126ba97SEli Cohen cq = to_mcq(ib_cq); 2272e126ba97SEli Cohen spin_lock(&cq->lock); 2273e126ba97SEli Cohen cur = wq->head - wq->tail; 2274e126ba97SEli Cohen spin_unlock(&cq->lock); 2275e126ba97SEli Cohen 2276e126ba97SEli Cohen return cur + nreq >= wq->max_post; 2277e126ba97SEli Cohen } 2278e126ba97SEli Cohen 2279e126ba97SEli Cohen static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, 2280e126ba97SEli Cohen u64 remote_addr, u32 rkey) 2281e126ba97SEli Cohen { 2282e126ba97SEli Cohen rseg->raddr = cpu_to_be64(remote_addr); 2283e126ba97SEli Cohen rseg->rkey = cpu_to_be32(rkey); 2284e126ba97SEli Cohen rseg->reserved = 0; 2285e126ba97SEli Cohen } 2286e126ba97SEli Cohen 2287e126ba97SEli Cohen static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, 2288e126ba97SEli Cohen struct ib_send_wr *wr) 2289e126ba97SEli Cohen { 2290e622f2f4SChristoph Hellwig memcpy(&dseg->av, &to_mah(ud_wr(wr)->ah)->av, sizeof(struct mlx5_av)); 2291e622f2f4SChristoph Hellwig dseg->av.dqp_dct = cpu_to_be32(ud_wr(wr)->remote_qpn | MLX5_EXTENDED_UD_AV); 2292e622f2f4SChristoph Hellwig dseg->av.key.qkey.qkey = cpu_to_be32(ud_wr(wr)->remote_qkey); 2293e126ba97SEli Cohen } 2294e126ba97SEli Cohen 2295e126ba97SEli Cohen static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg) 2296e126ba97SEli Cohen { 2297e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(sg->length); 2298e126ba97SEli Cohen dseg->lkey = cpu_to_be32(sg->lkey); 2299e126ba97SEli Cohen dseg->addr = cpu_to_be64(sg->addr); 2300e126ba97SEli Cohen } 2301e126ba97SEli Cohen 2302e126ba97SEli Cohen static __be16 get_klm_octo(int npages) 2303e126ba97SEli Cohen { 2304e126ba97SEli Cohen return cpu_to_be16(ALIGN(npages, 8) / 2); 2305e126ba97SEli Cohen } 2306e126ba97SEli Cohen 2307e126ba97SEli Cohen static __be64 frwr_mkey_mask(void) 2308e126ba97SEli Cohen { 2309e126ba97SEli Cohen u64 result; 2310e126ba97SEli Cohen 2311e126ba97SEli Cohen result = MLX5_MKEY_MASK_LEN | 2312e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 2313e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 2314e126ba97SEli Cohen MLX5_MKEY_MASK_EN_RINVAL | 2315e126ba97SEli Cohen MLX5_MKEY_MASK_KEY | 2316e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 2317e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 2318e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 2319e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 2320e126ba97SEli Cohen MLX5_MKEY_MASK_A | 2321e126ba97SEli Cohen MLX5_MKEY_MASK_SMALL_FENCE | 2322e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 2323e126ba97SEli Cohen 2324e126ba97SEli Cohen return cpu_to_be64(result); 2325e126ba97SEli Cohen } 2326e126ba97SEli Cohen 2327e6631814SSagi Grimberg static __be64 sig_mkey_mask(void) 2328e6631814SSagi Grimberg { 2329e6631814SSagi Grimberg u64 result; 2330e6631814SSagi Grimberg 2331e6631814SSagi Grimberg result = MLX5_MKEY_MASK_LEN | 2332e6631814SSagi Grimberg MLX5_MKEY_MASK_PAGE_SIZE | 2333e6631814SSagi Grimberg MLX5_MKEY_MASK_START_ADDR | 2334d5436ba0SSagi Grimberg MLX5_MKEY_MASK_EN_SIGERR | 2335e6631814SSagi Grimberg MLX5_MKEY_MASK_EN_RINVAL | 2336e6631814SSagi Grimberg MLX5_MKEY_MASK_KEY | 2337e6631814SSagi Grimberg MLX5_MKEY_MASK_LR | 2338e6631814SSagi Grimberg MLX5_MKEY_MASK_LW | 2339e6631814SSagi Grimberg MLX5_MKEY_MASK_RR | 2340e6631814SSagi Grimberg MLX5_MKEY_MASK_RW | 2341e6631814SSagi Grimberg MLX5_MKEY_MASK_SMALL_FENCE | 2342e6631814SSagi Grimberg MLX5_MKEY_MASK_FREE | 2343e6631814SSagi Grimberg MLX5_MKEY_MASK_BSF_EN; 2344e6631814SSagi Grimberg 2345e6631814SSagi Grimberg return cpu_to_be64(result); 2346e6631814SSagi Grimberg } 2347e6631814SSagi Grimberg 23488a187ee5SSagi Grimberg static void set_reg_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr, 23498a187ee5SSagi Grimberg struct mlx5_ib_mr *mr) 23508a187ee5SSagi Grimberg { 23518a187ee5SSagi Grimberg int ndescs = mr->ndescs; 23528a187ee5SSagi Grimberg 23538a187ee5SSagi Grimberg memset(umr, 0, sizeof(*umr)); 23548a187ee5SSagi Grimberg umr->flags = MLX5_UMR_CHECK_NOT_FREE; 23558a187ee5SSagi Grimberg umr->klm_octowords = get_klm_octo(ndescs); 23568a187ee5SSagi Grimberg umr->mkey_mask = frwr_mkey_mask(); 23578a187ee5SSagi Grimberg } 23588a187ee5SSagi Grimberg 2359dd01e66aSSagi Grimberg static void set_linv_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr) 2360e126ba97SEli Cohen { 2361e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 2362e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); 2363e126ba97SEli Cohen umr->flags = 1 << 7; 2364e126ba97SEli Cohen } 2365e126ba97SEli Cohen 2366968e78ddSHaggai Eran static __be64 get_umr_reg_mr_mask(void) 2367e126ba97SEli Cohen { 2368968e78ddSHaggai Eran u64 result; 2369e126ba97SEli Cohen 2370968e78ddSHaggai Eran result = MLX5_MKEY_MASK_LEN | 2371e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 2372e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 2373e126ba97SEli Cohen MLX5_MKEY_MASK_PD | 2374e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 2375e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 2376746b5583SEli Cohen MLX5_MKEY_MASK_KEY | 2377e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 2378e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 2379e126ba97SEli Cohen MLX5_MKEY_MASK_A | 2380e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 2381968e78ddSHaggai Eran 2382968e78ddSHaggai Eran return cpu_to_be64(result); 2383968e78ddSHaggai Eran } 2384968e78ddSHaggai Eran 2385968e78ddSHaggai Eran static __be64 get_umr_unreg_mr_mask(void) 2386968e78ddSHaggai Eran { 2387968e78ddSHaggai Eran u64 result; 2388968e78ddSHaggai Eran 2389968e78ddSHaggai Eran result = MLX5_MKEY_MASK_FREE; 2390968e78ddSHaggai Eran 2391968e78ddSHaggai Eran return cpu_to_be64(result); 2392968e78ddSHaggai Eran } 2393968e78ddSHaggai Eran 2394968e78ddSHaggai Eran static __be64 get_umr_update_mtt_mask(void) 2395968e78ddSHaggai Eran { 2396968e78ddSHaggai Eran u64 result; 2397968e78ddSHaggai Eran 2398968e78ddSHaggai Eran result = MLX5_MKEY_MASK_FREE; 2399968e78ddSHaggai Eran 2400968e78ddSHaggai Eran return cpu_to_be64(result); 2401968e78ddSHaggai Eran } 2402968e78ddSHaggai Eran 2403968e78ddSHaggai Eran static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2404968e78ddSHaggai Eran struct ib_send_wr *wr) 2405968e78ddSHaggai Eran { 2406e622f2f4SChristoph Hellwig struct mlx5_umr_wr *umrwr = umr_wr(wr); 2407968e78ddSHaggai Eran 2408968e78ddSHaggai Eran memset(umr, 0, sizeof(*umr)); 2409968e78ddSHaggai Eran 2410968e78ddSHaggai Eran if (wr->send_flags & MLX5_IB_SEND_UMR_FAIL_IF_FREE) 2411968e78ddSHaggai Eran umr->flags = MLX5_UMR_CHECK_FREE; /* fail if free */ 2412968e78ddSHaggai Eran else 2413968e78ddSHaggai Eran umr->flags = MLX5_UMR_CHECK_NOT_FREE; /* fail if not free */ 2414968e78ddSHaggai Eran 2415968e78ddSHaggai Eran if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) { 2416968e78ddSHaggai Eran umr->klm_octowords = get_klm_octo(umrwr->npages); 2417968e78ddSHaggai Eran if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT) { 2418968e78ddSHaggai Eran umr->mkey_mask = get_umr_update_mtt_mask(); 2419968e78ddSHaggai Eran umr->bsf_octowords = get_klm_octo(umrwr->target.offset); 2420968e78ddSHaggai Eran umr->flags |= MLX5_UMR_TRANSLATION_OFFSET_EN; 2421e126ba97SEli Cohen } else { 2422968e78ddSHaggai Eran umr->mkey_mask = get_umr_reg_mr_mask(); 2423968e78ddSHaggai Eran } 2424968e78ddSHaggai Eran } else { 2425968e78ddSHaggai Eran umr->mkey_mask = get_umr_unreg_mr_mask(); 2426e126ba97SEli Cohen } 2427e126ba97SEli Cohen 2428e126ba97SEli Cohen if (!wr->num_sge) 2429968e78ddSHaggai Eran umr->flags |= MLX5_UMR_INLINE; 2430e126ba97SEli Cohen } 2431e126ba97SEli Cohen 2432e126ba97SEli Cohen static u8 get_umr_flags(int acc) 2433e126ba97SEli Cohen { 2434e126ba97SEli Cohen return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 2435e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 2436e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 2437e126ba97SEli Cohen (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 24382ac45934SSagi Grimberg MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN; 2439e126ba97SEli Cohen } 2440e126ba97SEli Cohen 24418a187ee5SSagi Grimberg static void set_reg_mkey_seg(struct mlx5_mkey_seg *seg, 24428a187ee5SSagi Grimberg struct mlx5_ib_mr *mr, 24438a187ee5SSagi Grimberg u32 key, int access) 24448a187ee5SSagi Grimberg { 24458a187ee5SSagi Grimberg int ndescs = ALIGN(mr->ndescs, 8) >> 1; 24468a187ee5SSagi Grimberg 24478a187ee5SSagi Grimberg memset(seg, 0, sizeof(*seg)); 24488a187ee5SSagi Grimberg seg->flags = get_umr_flags(access) | MLX5_ACCESS_MODE_MTT; 24498a187ee5SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((key & 0xff) | 0xffffff00); 24508a187ee5SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL); 24518a187ee5SSagi Grimberg seg->start_addr = cpu_to_be64(mr->ibmr.iova); 24528a187ee5SSagi Grimberg seg->len = cpu_to_be64(mr->ibmr.length); 24538a187ee5SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(ndescs); 24548a187ee5SSagi Grimberg seg->log2_page_size = ilog2(mr->ibmr.page_size); 24558a187ee5SSagi Grimberg } 24568a187ee5SSagi Grimberg 2457dd01e66aSSagi Grimberg static void set_linv_mkey_seg(struct mlx5_mkey_seg *seg) 2458e126ba97SEli Cohen { 2459e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 2460968e78ddSHaggai Eran seg->status = MLX5_MKEY_STATUS_FREE; 2461e126ba97SEli Cohen } 2462e126ba97SEli Cohen 2463e126ba97SEli Cohen static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr) 2464e126ba97SEli Cohen { 2465e622f2f4SChristoph Hellwig struct mlx5_umr_wr *umrwr = umr_wr(wr); 2466968e78ddSHaggai Eran 2467e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 2468e126ba97SEli Cohen if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) { 2469968e78ddSHaggai Eran seg->status = MLX5_MKEY_STATUS_FREE; 2470e126ba97SEli Cohen return; 2471e126ba97SEli Cohen } 2472e126ba97SEli Cohen 2473968e78ddSHaggai Eran seg->flags = convert_access(umrwr->access_flags); 2474968e78ddSHaggai Eran if (!(wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT)) { 2475968e78ddSHaggai Eran seg->flags_pd = cpu_to_be32(to_mpd(umrwr->pd)->pdn); 2476968e78ddSHaggai Eran seg->start_addr = cpu_to_be64(umrwr->target.virt_addr); 2477968e78ddSHaggai Eran } 2478968e78ddSHaggai Eran seg->len = cpu_to_be64(umrwr->length); 2479968e78ddSHaggai Eran seg->log2_page_size = umrwr->page_shift; 2480746b5583SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 | 2481968e78ddSHaggai Eran mlx5_mkey_variant(umrwr->mkey)); 2482e126ba97SEli Cohen } 2483e126ba97SEli Cohen 24848a187ee5SSagi Grimberg static void set_reg_data_seg(struct mlx5_wqe_data_seg *dseg, 24858a187ee5SSagi Grimberg struct mlx5_ib_mr *mr, 24868a187ee5SSagi Grimberg struct mlx5_ib_pd *pd) 24878a187ee5SSagi Grimberg { 24888a187ee5SSagi Grimberg int bcount = mr->desc_size * mr->ndescs; 24898a187ee5SSagi Grimberg 24908a187ee5SSagi Grimberg dseg->addr = cpu_to_be64(mr->desc_map); 24918a187ee5SSagi Grimberg dseg->byte_count = cpu_to_be32(ALIGN(bcount, 64)); 24928a187ee5SSagi Grimberg dseg->lkey = cpu_to_be32(pd->ibpd.local_dma_lkey); 24938a187ee5SSagi Grimberg } 24948a187ee5SSagi Grimberg 2495e126ba97SEli Cohen static __be32 send_ieth(struct ib_send_wr *wr) 2496e126ba97SEli Cohen { 2497e126ba97SEli Cohen switch (wr->opcode) { 2498e126ba97SEli Cohen case IB_WR_SEND_WITH_IMM: 2499e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2500e126ba97SEli Cohen return wr->ex.imm_data; 2501e126ba97SEli Cohen 2502e126ba97SEli Cohen case IB_WR_SEND_WITH_INV: 2503e126ba97SEli Cohen return cpu_to_be32(wr->ex.invalidate_rkey); 2504e126ba97SEli Cohen 2505e126ba97SEli Cohen default: 2506e126ba97SEli Cohen return 0; 2507e126ba97SEli Cohen } 2508e126ba97SEli Cohen } 2509e126ba97SEli Cohen 2510e126ba97SEli Cohen static u8 calc_sig(void *wqe, int size) 2511e126ba97SEli Cohen { 2512e126ba97SEli Cohen u8 *p = wqe; 2513e126ba97SEli Cohen u8 res = 0; 2514e126ba97SEli Cohen int i; 2515e126ba97SEli Cohen 2516e126ba97SEli Cohen for (i = 0; i < size; i++) 2517e126ba97SEli Cohen res ^= p[i]; 2518e126ba97SEli Cohen 2519e126ba97SEli Cohen return ~res; 2520e126ba97SEli Cohen } 2521e126ba97SEli Cohen 2522e126ba97SEli Cohen static u8 wq_sig(void *wqe) 2523e126ba97SEli Cohen { 2524e126ba97SEli Cohen return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4); 2525e126ba97SEli Cohen } 2526e126ba97SEli Cohen 2527e126ba97SEli Cohen static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr, 2528e126ba97SEli Cohen void *wqe, int *sz) 2529e126ba97SEli Cohen { 2530e126ba97SEli Cohen struct mlx5_wqe_inline_seg *seg; 2531e126ba97SEli Cohen void *qend = qp->sq.qend; 2532e126ba97SEli Cohen void *addr; 2533e126ba97SEli Cohen int inl = 0; 2534e126ba97SEli Cohen int copy; 2535e126ba97SEli Cohen int len; 2536e126ba97SEli Cohen int i; 2537e126ba97SEli Cohen 2538e126ba97SEli Cohen seg = wqe; 2539e126ba97SEli Cohen wqe += sizeof(*seg); 2540e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) { 2541e126ba97SEli Cohen addr = (void *)(unsigned long)(wr->sg_list[i].addr); 2542e126ba97SEli Cohen len = wr->sg_list[i].length; 2543e126ba97SEli Cohen inl += len; 2544e126ba97SEli Cohen 2545e126ba97SEli Cohen if (unlikely(inl > qp->max_inline_data)) 2546e126ba97SEli Cohen return -ENOMEM; 2547e126ba97SEli Cohen 2548e126ba97SEli Cohen if (unlikely(wqe + len > qend)) { 2549e126ba97SEli Cohen copy = qend - wqe; 2550e126ba97SEli Cohen memcpy(wqe, addr, copy); 2551e126ba97SEli Cohen addr += copy; 2552e126ba97SEli Cohen len -= copy; 2553e126ba97SEli Cohen wqe = mlx5_get_send_wqe(qp, 0); 2554e126ba97SEli Cohen } 2555e126ba97SEli Cohen memcpy(wqe, addr, len); 2556e126ba97SEli Cohen wqe += len; 2557e126ba97SEli Cohen } 2558e126ba97SEli Cohen 2559e126ba97SEli Cohen seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG); 2560e126ba97SEli Cohen 2561e126ba97SEli Cohen *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16; 2562e126ba97SEli Cohen 2563e126ba97SEli Cohen return 0; 2564e126ba97SEli Cohen } 2565e126ba97SEli Cohen 2566e6631814SSagi Grimberg static u16 prot_field_size(enum ib_signature_type type) 2567e6631814SSagi Grimberg { 2568e6631814SSagi Grimberg switch (type) { 2569e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2570e6631814SSagi Grimberg return MLX5_DIF_SIZE; 2571e6631814SSagi Grimberg default: 2572e6631814SSagi Grimberg return 0; 2573e6631814SSagi Grimberg } 2574e6631814SSagi Grimberg } 2575e6631814SSagi Grimberg 2576e6631814SSagi Grimberg static u8 bs_selector(int block_size) 2577e6631814SSagi Grimberg { 2578e6631814SSagi Grimberg switch (block_size) { 2579e6631814SSagi Grimberg case 512: return 0x1; 2580e6631814SSagi Grimberg case 520: return 0x2; 2581e6631814SSagi Grimberg case 4096: return 0x3; 2582e6631814SSagi Grimberg case 4160: return 0x4; 2583e6631814SSagi Grimberg case 1073741824: return 0x5; 2584e6631814SSagi Grimberg default: return 0; 2585e6631814SSagi Grimberg } 2586e6631814SSagi Grimberg } 2587e6631814SSagi Grimberg 258878eda2bbSSagi Grimberg static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain, 2589142537f4SSagi Grimberg struct mlx5_bsf_inl *inl) 2590e6631814SSagi Grimberg { 2591142537f4SSagi Grimberg /* Valid inline section and allow BSF refresh */ 2592142537f4SSagi Grimberg inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID | 2593142537f4SSagi Grimberg MLX5_BSF_REFRESH_DIF); 2594142537f4SSagi Grimberg inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag); 2595142537f4SSagi Grimberg inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag); 2596142537f4SSagi Grimberg /* repeating block */ 2597142537f4SSagi Grimberg inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK; 2598142537f4SSagi Grimberg inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ? 2599142537f4SSagi Grimberg MLX5_DIF_CRC : MLX5_DIF_IPCS; 2600e6631814SSagi Grimberg 260178eda2bbSSagi Grimberg if (domain->sig.dif.ref_remap) 260278eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG; 2603e6631814SSagi Grimberg 260478eda2bbSSagi Grimberg if (domain->sig.dif.app_escape) { 260578eda2bbSSagi Grimberg if (domain->sig.dif.ref_escape) 260678eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE; 260778eda2bbSSagi Grimberg else 260878eda2bbSSagi Grimberg inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE; 2609e6631814SSagi Grimberg } 2610e6631814SSagi Grimberg 261178eda2bbSSagi Grimberg inl->dif_app_bitmask_check = 261278eda2bbSSagi Grimberg cpu_to_be16(domain->sig.dif.apptag_check_mask); 2613e6631814SSagi Grimberg } 2614e6631814SSagi Grimberg 2615e6631814SSagi Grimberg static int mlx5_set_bsf(struct ib_mr *sig_mr, 2616e6631814SSagi Grimberg struct ib_sig_attrs *sig_attrs, 2617e6631814SSagi Grimberg struct mlx5_bsf *bsf, u32 data_size) 2618e6631814SSagi Grimberg { 2619e6631814SSagi Grimberg struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig; 2620e6631814SSagi Grimberg struct mlx5_bsf_basic *basic = &bsf->basic; 2621e6631814SSagi Grimberg struct ib_sig_domain *mem = &sig_attrs->mem; 2622e6631814SSagi Grimberg struct ib_sig_domain *wire = &sig_attrs->wire; 2623e6631814SSagi Grimberg 2624c7f44fbdSSagi Grimberg memset(bsf, 0, sizeof(*bsf)); 2625e6631814SSagi Grimberg 2626142537f4SSagi Grimberg /* Basic + Extended + Inline */ 2627142537f4SSagi Grimberg basic->bsf_size_sbs = 1 << 7; 2628e6631814SSagi Grimberg /* Input domain check byte mask */ 2629e6631814SSagi Grimberg basic->check_byte_mask = sig_attrs->check_mask; 263078eda2bbSSagi Grimberg basic->raw_data_size = cpu_to_be32(data_size); 263178eda2bbSSagi Grimberg 263278eda2bbSSagi Grimberg /* Memory domain */ 263378eda2bbSSagi Grimberg switch (sig_attrs->mem.sig_type) { 263478eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 263578eda2bbSSagi Grimberg break; 263678eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 263778eda2bbSSagi Grimberg basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval); 263878eda2bbSSagi Grimberg basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx); 263978eda2bbSSagi Grimberg mlx5_fill_inl_bsf(mem, &bsf->m_inl); 264078eda2bbSSagi Grimberg break; 264178eda2bbSSagi Grimberg default: 264278eda2bbSSagi Grimberg return -EINVAL; 264378eda2bbSSagi Grimberg } 264478eda2bbSSagi Grimberg 264578eda2bbSSagi Grimberg /* Wire domain */ 264678eda2bbSSagi Grimberg switch (sig_attrs->wire.sig_type) { 264778eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 264878eda2bbSSagi Grimberg break; 264978eda2bbSSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2650e6631814SSagi Grimberg if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval && 265178eda2bbSSagi Grimberg mem->sig_type == wire->sig_type) { 2652e6631814SSagi Grimberg /* Same block structure */ 2653142537f4SSagi Grimberg basic->bsf_size_sbs |= 1 << 4; 2654e6631814SSagi Grimberg if (mem->sig.dif.bg_type == wire->sig.dif.bg_type) 2655fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK; 2656c7f44fbdSSagi Grimberg if (mem->sig.dif.app_tag == wire->sig.dif.app_tag) 2657fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK; 2658c7f44fbdSSagi Grimberg if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag) 2659fd22f78cSSagi Grimberg basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK; 2660e6631814SSagi Grimberg } else 2661e6631814SSagi Grimberg basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval); 2662e6631814SSagi Grimberg 2663142537f4SSagi Grimberg basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx); 266478eda2bbSSagi Grimberg mlx5_fill_inl_bsf(wire, &bsf->w_inl); 2665e6631814SSagi Grimberg break; 2666e6631814SSagi Grimberg default: 2667e6631814SSagi Grimberg return -EINVAL; 2668e6631814SSagi Grimberg } 2669e6631814SSagi Grimberg 2670e6631814SSagi Grimberg return 0; 2671e6631814SSagi Grimberg } 2672e6631814SSagi Grimberg 2673e622f2f4SChristoph Hellwig static int set_sig_data_segment(struct ib_sig_handover_wr *wr, 2674e622f2f4SChristoph Hellwig struct mlx5_ib_qp *qp, void **seg, int *size) 2675e6631814SSagi Grimberg { 2676e622f2f4SChristoph Hellwig struct ib_sig_attrs *sig_attrs = wr->sig_attrs; 2677e622f2f4SChristoph Hellwig struct ib_mr *sig_mr = wr->sig_mr; 2678e6631814SSagi Grimberg struct mlx5_bsf *bsf; 2679e622f2f4SChristoph Hellwig u32 data_len = wr->wr.sg_list->length; 2680e622f2f4SChristoph Hellwig u32 data_key = wr->wr.sg_list->lkey; 2681e622f2f4SChristoph Hellwig u64 data_va = wr->wr.sg_list->addr; 2682e6631814SSagi Grimberg int ret; 2683e6631814SSagi Grimberg int wqe_size; 2684e6631814SSagi Grimberg 2685e622f2f4SChristoph Hellwig if (!wr->prot || 2686e622f2f4SChristoph Hellwig (data_key == wr->prot->lkey && 2687e622f2f4SChristoph Hellwig data_va == wr->prot->addr && 2688e622f2f4SChristoph Hellwig data_len == wr->prot->length)) { 2689e6631814SSagi Grimberg /** 2690e6631814SSagi Grimberg * Source domain doesn't contain signature information 26915c273b16SSagi Grimberg * or data and protection are interleaved in memory. 2692e6631814SSagi Grimberg * So need construct: 2693e6631814SSagi Grimberg * ------------------ 2694e6631814SSagi Grimberg * | data_klm | 2695e6631814SSagi Grimberg * ------------------ 2696e6631814SSagi Grimberg * | BSF | 2697e6631814SSagi Grimberg * ------------------ 2698e6631814SSagi Grimberg **/ 2699e6631814SSagi Grimberg struct mlx5_klm *data_klm = *seg; 2700e6631814SSagi Grimberg 2701e6631814SSagi Grimberg data_klm->bcount = cpu_to_be32(data_len); 2702e6631814SSagi Grimberg data_klm->key = cpu_to_be32(data_key); 2703e6631814SSagi Grimberg data_klm->va = cpu_to_be64(data_va); 2704e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*data_klm), 64); 2705e6631814SSagi Grimberg } else { 2706e6631814SSagi Grimberg /** 2707e6631814SSagi Grimberg * Source domain contains signature information 2708e6631814SSagi Grimberg * So need construct a strided block format: 2709e6631814SSagi Grimberg * --------------------------- 2710e6631814SSagi Grimberg * | stride_block_ctrl | 2711e6631814SSagi Grimberg * --------------------------- 2712e6631814SSagi Grimberg * | data_klm | 2713e6631814SSagi Grimberg * --------------------------- 2714e6631814SSagi Grimberg * | prot_klm | 2715e6631814SSagi Grimberg * --------------------------- 2716e6631814SSagi Grimberg * | BSF | 2717e6631814SSagi Grimberg * --------------------------- 2718e6631814SSagi Grimberg **/ 2719e6631814SSagi Grimberg struct mlx5_stride_block_ctrl_seg *sblock_ctrl; 2720e6631814SSagi Grimberg struct mlx5_stride_block_entry *data_sentry; 2721e6631814SSagi Grimberg struct mlx5_stride_block_entry *prot_sentry; 2722e622f2f4SChristoph Hellwig u32 prot_key = wr->prot->lkey; 2723e622f2f4SChristoph Hellwig u64 prot_va = wr->prot->addr; 2724e6631814SSagi Grimberg u16 block_size = sig_attrs->mem.sig.dif.pi_interval; 2725e6631814SSagi Grimberg int prot_size; 2726e6631814SSagi Grimberg 2727e6631814SSagi Grimberg sblock_ctrl = *seg; 2728e6631814SSagi Grimberg data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl); 2729e6631814SSagi Grimberg prot_sentry = (void *)data_sentry + sizeof(*data_sentry); 2730e6631814SSagi Grimberg 2731e6631814SSagi Grimberg prot_size = prot_field_size(sig_attrs->mem.sig_type); 2732e6631814SSagi Grimberg if (!prot_size) { 2733e6631814SSagi Grimberg pr_err("Bad block size given: %u\n", block_size); 2734e6631814SSagi Grimberg return -EINVAL; 2735e6631814SSagi Grimberg } 2736e6631814SSagi Grimberg sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size + 2737e6631814SSagi Grimberg prot_size); 2738e6631814SSagi Grimberg sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP); 2739e6631814SSagi Grimberg sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size); 2740e6631814SSagi Grimberg sblock_ctrl->num_entries = cpu_to_be16(2); 2741e6631814SSagi Grimberg 2742e6631814SSagi Grimberg data_sentry->bcount = cpu_to_be16(block_size); 2743e6631814SSagi Grimberg data_sentry->key = cpu_to_be32(data_key); 2744e6631814SSagi Grimberg data_sentry->va = cpu_to_be64(data_va); 27455c273b16SSagi Grimberg data_sentry->stride = cpu_to_be16(block_size); 27465c273b16SSagi Grimberg 2747e6631814SSagi Grimberg prot_sentry->bcount = cpu_to_be16(prot_size); 2748e6631814SSagi Grimberg prot_sentry->key = cpu_to_be32(prot_key); 2749e6631814SSagi Grimberg prot_sentry->va = cpu_to_be64(prot_va); 2750e6631814SSagi Grimberg prot_sentry->stride = cpu_to_be16(prot_size); 27515c273b16SSagi Grimberg 2752e6631814SSagi Grimberg wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) + 2753e6631814SSagi Grimberg sizeof(*prot_sentry), 64); 2754e6631814SSagi Grimberg } 2755e6631814SSagi Grimberg 2756e6631814SSagi Grimberg *seg += wqe_size; 2757e6631814SSagi Grimberg *size += wqe_size / 16; 2758e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2759e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2760e6631814SSagi Grimberg 2761e6631814SSagi Grimberg bsf = *seg; 2762e6631814SSagi Grimberg ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len); 2763e6631814SSagi Grimberg if (ret) 2764e6631814SSagi Grimberg return -EINVAL; 2765e6631814SSagi Grimberg 2766e6631814SSagi Grimberg *seg += sizeof(*bsf); 2767e6631814SSagi Grimberg *size += sizeof(*bsf) / 16; 2768e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2769e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2770e6631814SSagi Grimberg 2771e6631814SSagi Grimberg return 0; 2772e6631814SSagi Grimberg } 2773e6631814SSagi Grimberg 2774e6631814SSagi Grimberg static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg, 2775e622f2f4SChristoph Hellwig struct ib_sig_handover_wr *wr, u32 nelements, 2776e6631814SSagi Grimberg u32 length, u32 pdn) 2777e6631814SSagi Grimberg { 2778e622f2f4SChristoph Hellwig struct ib_mr *sig_mr = wr->sig_mr; 2779e6631814SSagi Grimberg u32 sig_key = sig_mr->rkey; 2780d5436ba0SSagi Grimberg u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1; 2781e6631814SSagi Grimberg 2782e6631814SSagi Grimberg memset(seg, 0, sizeof(*seg)); 2783e6631814SSagi Grimberg 2784e622f2f4SChristoph Hellwig seg->flags = get_umr_flags(wr->access_flags) | 2785e6631814SSagi Grimberg MLX5_ACCESS_MODE_KLM; 2786e6631814SSagi Grimberg seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00); 2787d5436ba0SSagi Grimberg seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 | 2788e6631814SSagi Grimberg MLX5_MKEY_BSF_EN | pdn); 2789e6631814SSagi Grimberg seg->len = cpu_to_be64(length); 2790e6631814SSagi Grimberg seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements))); 2791e6631814SSagi Grimberg seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE); 2792e6631814SSagi Grimberg } 2793e6631814SSagi Grimberg 2794e6631814SSagi Grimberg static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 2795e622f2f4SChristoph Hellwig u32 nelements) 2796e6631814SSagi Grimberg { 2797e6631814SSagi Grimberg memset(umr, 0, sizeof(*umr)); 2798e6631814SSagi Grimberg 2799e6631814SSagi Grimberg umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE; 2800e6631814SSagi Grimberg umr->klm_octowords = get_klm_octo(nelements); 2801e6631814SSagi Grimberg umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE); 2802e6631814SSagi Grimberg umr->mkey_mask = sig_mkey_mask(); 2803e6631814SSagi Grimberg } 2804e6631814SSagi Grimberg 2805e6631814SSagi Grimberg 2806e622f2f4SChristoph Hellwig static int set_sig_umr_wr(struct ib_send_wr *send_wr, struct mlx5_ib_qp *qp, 2807e6631814SSagi Grimberg void **seg, int *size) 2808e6631814SSagi Grimberg { 2809e622f2f4SChristoph Hellwig struct ib_sig_handover_wr *wr = sig_handover_wr(send_wr); 2810e622f2f4SChristoph Hellwig struct mlx5_ib_mr *sig_mr = to_mmr(wr->sig_mr); 2811e6631814SSagi Grimberg u32 pdn = get_pd(qp)->pdn; 2812e6631814SSagi Grimberg u32 klm_oct_size; 2813e6631814SSagi Grimberg int region_len, ret; 2814e6631814SSagi Grimberg 2815e622f2f4SChristoph Hellwig if (unlikely(wr->wr.num_sge != 1) || 2816e622f2f4SChristoph Hellwig unlikely(wr->access_flags & IB_ACCESS_REMOTE_ATOMIC) || 2817d5436ba0SSagi Grimberg unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) || 2818d5436ba0SSagi Grimberg unlikely(!sig_mr->sig->sig_status_checked)) 2819e6631814SSagi Grimberg return -EINVAL; 2820e6631814SSagi Grimberg 2821e6631814SSagi Grimberg /* length of the protected region, data + protection */ 2822e622f2f4SChristoph Hellwig region_len = wr->wr.sg_list->length; 2823e622f2f4SChristoph Hellwig if (wr->prot && 2824e622f2f4SChristoph Hellwig (wr->prot->lkey != wr->wr.sg_list->lkey || 2825e622f2f4SChristoph Hellwig wr->prot->addr != wr->wr.sg_list->addr || 2826e622f2f4SChristoph Hellwig wr->prot->length != wr->wr.sg_list->length)) 2827e622f2f4SChristoph Hellwig region_len += wr->prot->length; 2828e6631814SSagi Grimberg 2829e6631814SSagi Grimberg /** 2830e6631814SSagi Grimberg * KLM octoword size - if protection was provided 2831e6631814SSagi Grimberg * then we use strided block format (3 octowords), 2832e6631814SSagi Grimberg * else we use single KLM (1 octoword) 2833e6631814SSagi Grimberg **/ 2834e622f2f4SChristoph Hellwig klm_oct_size = wr->prot ? 3 : 1; 2835e6631814SSagi Grimberg 2836e622f2f4SChristoph Hellwig set_sig_umr_segment(*seg, klm_oct_size); 2837e6631814SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2838e6631814SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2839e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2840e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2841e6631814SSagi Grimberg 2842e6631814SSagi Grimberg set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn); 2843e6631814SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 2844e6631814SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 2845e6631814SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 2846e6631814SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 2847e6631814SSagi Grimberg 2848e6631814SSagi Grimberg ret = set_sig_data_segment(wr, qp, seg, size); 2849e6631814SSagi Grimberg if (ret) 2850e6631814SSagi Grimberg return ret; 2851e6631814SSagi Grimberg 2852d5436ba0SSagi Grimberg sig_mr->sig->sig_status_checked = false; 2853e6631814SSagi Grimberg return 0; 2854e6631814SSagi Grimberg } 2855e6631814SSagi Grimberg 2856e6631814SSagi Grimberg static int set_psv_wr(struct ib_sig_domain *domain, 2857e6631814SSagi Grimberg u32 psv_idx, void **seg, int *size) 2858e6631814SSagi Grimberg { 2859e6631814SSagi Grimberg struct mlx5_seg_set_psv *psv_seg = *seg; 2860e6631814SSagi Grimberg 2861e6631814SSagi Grimberg memset(psv_seg, 0, sizeof(*psv_seg)); 2862e6631814SSagi Grimberg psv_seg->psv_num = cpu_to_be32(psv_idx); 2863e6631814SSagi Grimberg switch (domain->sig_type) { 286478eda2bbSSagi Grimberg case IB_SIG_TYPE_NONE: 286578eda2bbSSagi Grimberg break; 2866e6631814SSagi Grimberg case IB_SIG_TYPE_T10_DIF: 2867e6631814SSagi Grimberg psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 | 2868e6631814SSagi Grimberg domain->sig.dif.app_tag); 2869e6631814SSagi Grimberg psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag); 2870e6631814SSagi Grimberg break; 2871e6631814SSagi Grimberg default: 2872e6631814SSagi Grimberg pr_err("Bad signature type given.\n"); 2873e6631814SSagi Grimberg return 1; 2874e6631814SSagi Grimberg } 2875e6631814SSagi Grimberg 287678eda2bbSSagi Grimberg *seg += sizeof(*psv_seg); 287778eda2bbSSagi Grimberg *size += sizeof(*psv_seg) / 16; 287878eda2bbSSagi Grimberg 2879e6631814SSagi Grimberg return 0; 2880e6631814SSagi Grimberg } 2881e6631814SSagi Grimberg 28828a187ee5SSagi Grimberg static int set_reg_wr(struct mlx5_ib_qp *qp, 28838a187ee5SSagi Grimberg struct ib_reg_wr *wr, 28848a187ee5SSagi Grimberg void **seg, int *size) 28858a187ee5SSagi Grimberg { 28868a187ee5SSagi Grimberg struct mlx5_ib_mr *mr = to_mmr(wr->mr); 28878a187ee5SSagi Grimberg struct mlx5_ib_pd *pd = to_mpd(qp->ibqp.pd); 28888a187ee5SSagi Grimberg 28898a187ee5SSagi Grimberg if (unlikely(wr->wr.send_flags & IB_SEND_INLINE)) { 28908a187ee5SSagi Grimberg mlx5_ib_warn(to_mdev(qp->ibqp.device), 28918a187ee5SSagi Grimberg "Invalid IB_SEND_INLINE send flag\n"); 28928a187ee5SSagi Grimberg return -EINVAL; 28938a187ee5SSagi Grimberg } 28948a187ee5SSagi Grimberg 28958a187ee5SSagi Grimberg set_reg_umr_seg(*seg, mr); 28968a187ee5SSagi Grimberg *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 28978a187ee5SSagi Grimberg *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 28988a187ee5SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 28998a187ee5SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 29008a187ee5SSagi Grimberg 29018a187ee5SSagi Grimberg set_reg_mkey_seg(*seg, mr, wr->key, wr->access); 29028a187ee5SSagi Grimberg *seg += sizeof(struct mlx5_mkey_seg); 29038a187ee5SSagi Grimberg *size += sizeof(struct mlx5_mkey_seg) / 16; 29048a187ee5SSagi Grimberg if (unlikely((*seg == qp->sq.qend))) 29058a187ee5SSagi Grimberg *seg = mlx5_get_send_wqe(qp, 0); 29068a187ee5SSagi Grimberg 29078a187ee5SSagi Grimberg set_reg_data_seg(*seg, mr, pd); 29088a187ee5SSagi Grimberg *seg += sizeof(struct mlx5_wqe_data_seg); 29098a187ee5SSagi Grimberg *size += (sizeof(struct mlx5_wqe_data_seg) / 16); 29108a187ee5SSagi Grimberg 29118a187ee5SSagi Grimberg return 0; 29128a187ee5SSagi Grimberg } 29138a187ee5SSagi Grimberg 2914dd01e66aSSagi Grimberg static void set_linv_wr(struct mlx5_ib_qp *qp, void **seg, int *size) 2915e126ba97SEli Cohen { 2916dd01e66aSSagi Grimberg set_linv_umr_seg(*seg); 2917e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2918e126ba97SEli Cohen *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2919e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2920e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2921dd01e66aSSagi Grimberg set_linv_mkey_seg(*seg); 2922e126ba97SEli Cohen *seg += sizeof(struct mlx5_mkey_seg); 2923e126ba97SEli Cohen *size += sizeof(struct mlx5_mkey_seg) / 16; 2924e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 2925e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 2926e126ba97SEli Cohen } 2927e126ba97SEli Cohen 2928e126ba97SEli Cohen static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16) 2929e126ba97SEli Cohen { 2930e126ba97SEli Cohen __be32 *p = NULL; 2931e126ba97SEli Cohen int tidx = idx; 2932e126ba97SEli Cohen int i, j; 2933e126ba97SEli Cohen 2934e126ba97SEli Cohen pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx)); 2935e126ba97SEli Cohen for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) { 2936e126ba97SEli Cohen if ((i & 0xf) == 0) { 2937e126ba97SEli Cohen void *buf = mlx5_get_send_wqe(qp, tidx); 2938e126ba97SEli Cohen tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1); 2939e126ba97SEli Cohen p = buf; 2940e126ba97SEli Cohen j = 0; 2941e126ba97SEli Cohen } 2942e126ba97SEli Cohen pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]), 2943e126ba97SEli Cohen be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]), 2944e126ba97SEli Cohen be32_to_cpu(p[j + 3])); 2945e126ba97SEli Cohen } 2946e126ba97SEli Cohen } 2947e126ba97SEli Cohen 2948e126ba97SEli Cohen static void mlx5_bf_copy(u64 __iomem *dst, u64 *src, 2949e126ba97SEli Cohen unsigned bytecnt, struct mlx5_ib_qp *qp) 2950e126ba97SEli Cohen { 2951e126ba97SEli Cohen while (bytecnt > 0) { 2952e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2953e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2954e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2955e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2956e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2957e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2958e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2959e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 2960e126ba97SEli Cohen bytecnt -= 64; 2961e126ba97SEli Cohen if (unlikely(src == qp->sq.qend)) 2962e126ba97SEli Cohen src = mlx5_get_send_wqe(qp, 0); 2963e126ba97SEli Cohen } 2964e126ba97SEli Cohen } 2965e126ba97SEli Cohen 2966e126ba97SEli Cohen static u8 get_fence(u8 fence, struct ib_send_wr *wr) 2967e126ba97SEli Cohen { 2968e126ba97SEli Cohen if (unlikely(wr->opcode == IB_WR_LOCAL_INV && 2969e126ba97SEli Cohen wr->send_flags & IB_SEND_FENCE)) 2970e126ba97SEli Cohen return MLX5_FENCE_MODE_STRONG_ORDERING; 2971e126ba97SEli Cohen 2972e126ba97SEli Cohen if (unlikely(fence)) { 2973e126ba97SEli Cohen if (wr->send_flags & IB_SEND_FENCE) 2974e126ba97SEli Cohen return MLX5_FENCE_MODE_SMALL_AND_FENCE; 2975e126ba97SEli Cohen else 2976e126ba97SEli Cohen return fence; 2977e126ba97SEli Cohen 2978e126ba97SEli Cohen } else { 2979e126ba97SEli Cohen return 0; 2980e126ba97SEli Cohen } 2981e126ba97SEli Cohen } 2982e126ba97SEli Cohen 29836e5eadacSSagi Grimberg static int begin_wqe(struct mlx5_ib_qp *qp, void **seg, 29846e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg **ctrl, 29856a4f139aSEli Cohen struct ib_send_wr *wr, unsigned *idx, 29866e5eadacSSagi Grimberg int *size, int nreq) 29876e5eadacSSagi Grimberg { 29886e5eadacSSagi Grimberg int err = 0; 29896e5eadacSSagi Grimberg 29906e5eadacSSagi Grimberg if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { 29916e5eadacSSagi Grimberg err = -ENOMEM; 29926e5eadacSSagi Grimberg return err; 29936e5eadacSSagi Grimberg } 29946e5eadacSSagi Grimberg 29956e5eadacSSagi Grimberg *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); 29966e5eadacSSagi Grimberg *seg = mlx5_get_send_wqe(qp, *idx); 29976e5eadacSSagi Grimberg *ctrl = *seg; 29986e5eadacSSagi Grimberg *(uint32_t *)(*seg + 8) = 0; 29996e5eadacSSagi Grimberg (*ctrl)->imm = send_ieth(wr); 30006e5eadacSSagi Grimberg (*ctrl)->fm_ce_se = qp->sq_signal_bits | 30016e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SIGNALED ? 30026e5eadacSSagi Grimberg MLX5_WQE_CTRL_CQ_UPDATE : 0) | 30036e5eadacSSagi Grimberg (wr->send_flags & IB_SEND_SOLICITED ? 30046e5eadacSSagi Grimberg MLX5_WQE_CTRL_SOLICITED : 0); 30056e5eadacSSagi Grimberg 30066e5eadacSSagi Grimberg *seg += sizeof(**ctrl); 30076e5eadacSSagi Grimberg *size = sizeof(**ctrl) / 16; 30086e5eadacSSagi Grimberg 30096e5eadacSSagi Grimberg return err; 30106e5eadacSSagi Grimberg } 30116e5eadacSSagi Grimberg 30126e5eadacSSagi Grimberg static void finish_wqe(struct mlx5_ib_qp *qp, 30136e5eadacSSagi Grimberg struct mlx5_wqe_ctrl_seg *ctrl, 30146e5eadacSSagi Grimberg u8 size, unsigned idx, u64 wr_id, 30156e5eadacSSagi Grimberg int nreq, u8 fence, u8 next_fence, 30166e5eadacSSagi Grimberg u32 mlx5_opcode) 30176e5eadacSSagi Grimberg { 30186e5eadacSSagi Grimberg u8 opmod = 0; 30196e5eadacSSagi Grimberg 30206e5eadacSSagi Grimberg ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) | 30216e5eadacSSagi Grimberg mlx5_opcode | ((u32)opmod << 24)); 302219098df2Smajd@mellanox.com ctrl->qpn_ds = cpu_to_be32(size | (qp->trans_qp.base.mqp.qpn << 8)); 30236e5eadacSSagi Grimberg ctrl->fm_ce_se |= fence; 30246e5eadacSSagi Grimberg qp->fm_cache = next_fence; 30256e5eadacSSagi Grimberg if (unlikely(qp->wq_sig)) 30266e5eadacSSagi Grimberg ctrl->signature = wq_sig(ctrl); 30276e5eadacSSagi Grimberg 30286e5eadacSSagi Grimberg qp->sq.wrid[idx] = wr_id; 30296e5eadacSSagi Grimberg qp->sq.w_list[idx].opcode = mlx5_opcode; 30306e5eadacSSagi Grimberg qp->sq.wqe_head[idx] = qp->sq.head + nreq; 30316e5eadacSSagi Grimberg qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB); 30326e5eadacSSagi Grimberg qp->sq.w_list[idx].next = qp->sq.cur_post; 30336e5eadacSSagi Grimberg } 30346e5eadacSSagi Grimberg 30356e5eadacSSagi Grimberg 3036e126ba97SEli Cohen int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 3037e126ba97SEli Cohen struct ib_send_wr **bad_wr) 3038e126ba97SEli Cohen { 3039e126ba97SEli Cohen struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */ 3040e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 3041e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 3042e6631814SSagi Grimberg struct mlx5_ib_mr *mr; 3043e126ba97SEli Cohen struct mlx5_wqe_data_seg *dpseg; 3044e126ba97SEli Cohen struct mlx5_wqe_xrc_seg *xrc; 3045e126ba97SEli Cohen struct mlx5_bf *bf = qp->bf; 3046e126ba97SEli Cohen int uninitialized_var(size); 3047e126ba97SEli Cohen void *qend = qp->sq.qend; 3048e126ba97SEli Cohen unsigned long flags; 3049e126ba97SEli Cohen unsigned idx; 3050e126ba97SEli Cohen int err = 0; 3051e126ba97SEli Cohen int inl = 0; 3052e126ba97SEli Cohen int num_sge; 3053e126ba97SEli Cohen void *seg; 3054e126ba97SEli Cohen int nreq; 3055e126ba97SEli Cohen int i; 3056e126ba97SEli Cohen u8 next_fence = 0; 3057e126ba97SEli Cohen u8 fence; 3058e126ba97SEli Cohen 3059e126ba97SEli Cohen spin_lock_irqsave(&qp->sq.lock, flags); 3060e126ba97SEli Cohen 3061e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 3062a8f731ebSFabian Frederick if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) { 3063e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 3064e126ba97SEli Cohen err = -EINVAL; 3065e126ba97SEli Cohen *bad_wr = wr; 3066e126ba97SEli Cohen goto out; 3067e126ba97SEli Cohen } 3068e126ba97SEli Cohen 3069e126ba97SEli Cohen fence = qp->fm_cache; 3070e126ba97SEli Cohen num_sge = wr->num_sge; 3071e126ba97SEli Cohen if (unlikely(num_sge > qp->sq.max_gs)) { 3072e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 3073e126ba97SEli Cohen err = -ENOMEM; 3074e126ba97SEli Cohen *bad_wr = wr; 3075e126ba97SEli Cohen goto out; 3076e126ba97SEli Cohen } 3077e126ba97SEli Cohen 30786e5eadacSSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq); 30796e5eadacSSagi Grimberg if (err) { 30806e5eadacSSagi Grimberg mlx5_ib_warn(dev, "\n"); 30816e5eadacSSagi Grimberg err = -ENOMEM; 30826e5eadacSSagi Grimberg *bad_wr = wr; 30836e5eadacSSagi Grimberg goto out; 30846e5eadacSSagi Grimberg } 3085e126ba97SEli Cohen 3086e126ba97SEli Cohen switch (ibqp->qp_type) { 3087e126ba97SEli Cohen case IB_QPT_XRC_INI: 3088e126ba97SEli Cohen xrc = seg; 3089e126ba97SEli Cohen seg += sizeof(*xrc); 3090e126ba97SEli Cohen size += sizeof(*xrc) / 16; 3091e126ba97SEli Cohen /* fall through */ 3092e126ba97SEli Cohen case IB_QPT_RC: 3093e126ba97SEli Cohen switch (wr->opcode) { 3094e126ba97SEli Cohen case IB_WR_RDMA_READ: 3095e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 3096e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 3097e622f2f4SChristoph Hellwig set_raddr_seg(seg, rdma_wr(wr)->remote_addr, 3098e622f2f4SChristoph Hellwig rdma_wr(wr)->rkey); 3099e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 3100e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 3101e126ba97SEli Cohen break; 3102e126ba97SEli Cohen 3103e126ba97SEli Cohen case IB_WR_ATOMIC_CMP_AND_SWP: 3104e126ba97SEli Cohen case IB_WR_ATOMIC_FETCH_AND_ADD: 3105e126ba97SEli Cohen case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: 310681bea28fSEli Cohen mlx5_ib_warn(dev, "Atomic operations are not supported yet\n"); 310781bea28fSEli Cohen err = -ENOSYS; 310881bea28fSEli Cohen *bad_wr = wr; 310981bea28fSEli Cohen goto out; 3110e126ba97SEli Cohen 3111e126ba97SEli Cohen case IB_WR_LOCAL_INV: 3112e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 3113e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_LOCAL_INV; 3114e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey); 3115dd01e66aSSagi Grimberg set_linv_wr(qp, &seg, &size); 3116e126ba97SEli Cohen num_sge = 0; 3117e126ba97SEli Cohen break; 3118e126ba97SEli Cohen 31198a187ee5SSagi Grimberg case IB_WR_REG_MR: 31208a187ee5SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 31218a187ee5SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_MR; 31228a187ee5SSagi Grimberg ctrl->imm = cpu_to_be32(reg_wr(wr)->key); 31238a187ee5SSagi Grimberg err = set_reg_wr(qp, reg_wr(wr), &seg, &size); 31248a187ee5SSagi Grimberg if (err) { 31258a187ee5SSagi Grimberg *bad_wr = wr; 31268a187ee5SSagi Grimberg goto out; 31278a187ee5SSagi Grimberg } 31288a187ee5SSagi Grimberg num_sge = 0; 31298a187ee5SSagi Grimberg break; 31308a187ee5SSagi Grimberg 3131e6631814SSagi Grimberg case IB_WR_REG_SIG_MR: 3132e6631814SSagi Grimberg qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR; 3133e622f2f4SChristoph Hellwig mr = to_mmr(sig_handover_wr(wr)->sig_mr); 3134e6631814SSagi Grimberg 3135e6631814SSagi Grimberg ctrl->imm = cpu_to_be32(mr->ibmr.rkey); 3136e6631814SSagi Grimberg err = set_sig_umr_wr(wr, qp, &seg, &size); 3137e6631814SSagi Grimberg if (err) { 3138e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 3139e6631814SSagi Grimberg *bad_wr = wr; 3140e6631814SSagi Grimberg goto out; 3141e6631814SSagi Grimberg } 3142e6631814SSagi Grimberg 3143e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 3144e6631814SSagi Grimberg nreq, get_fence(fence, wr), 3145e6631814SSagi Grimberg next_fence, MLX5_OPCODE_UMR); 3146e6631814SSagi Grimberg /* 3147e6631814SSagi Grimberg * SET_PSV WQEs are not signaled and solicited 3148e6631814SSagi Grimberg * on error 3149e6631814SSagi Grimberg */ 3150e6631814SSagi Grimberg wr->send_flags &= ~IB_SEND_SIGNALED; 3151e6631814SSagi Grimberg wr->send_flags |= IB_SEND_SOLICITED; 3152e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 3153e6631814SSagi Grimberg &idx, &size, nreq); 3154e6631814SSagi Grimberg if (err) { 3155e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 3156e6631814SSagi Grimberg err = -ENOMEM; 3157e6631814SSagi Grimberg *bad_wr = wr; 3158e6631814SSagi Grimberg goto out; 3159e6631814SSagi Grimberg } 3160e6631814SSagi Grimberg 3161e622f2f4SChristoph Hellwig err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->mem, 3162e6631814SSagi Grimberg mr->sig->psv_memory.psv_idx, &seg, 3163e6631814SSagi Grimberg &size); 3164e6631814SSagi Grimberg if (err) { 3165e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 3166e6631814SSagi Grimberg *bad_wr = wr; 3167e6631814SSagi Grimberg goto out; 3168e6631814SSagi Grimberg } 3169e6631814SSagi Grimberg 3170e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 3171e6631814SSagi Grimberg nreq, get_fence(fence, wr), 3172e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 3173e6631814SSagi Grimberg err = begin_wqe(qp, &seg, &ctrl, wr, 3174e6631814SSagi Grimberg &idx, &size, nreq); 3175e6631814SSagi Grimberg if (err) { 3176e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 3177e6631814SSagi Grimberg err = -ENOMEM; 3178e6631814SSagi Grimberg *bad_wr = wr; 3179e6631814SSagi Grimberg goto out; 3180e6631814SSagi Grimberg } 3181e6631814SSagi Grimberg 3182e6631814SSagi Grimberg next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 3183e622f2f4SChristoph Hellwig err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->wire, 3184e6631814SSagi Grimberg mr->sig->psv_wire.psv_idx, &seg, 3185e6631814SSagi Grimberg &size); 3186e6631814SSagi Grimberg if (err) { 3187e6631814SSagi Grimberg mlx5_ib_warn(dev, "\n"); 3188e6631814SSagi Grimberg *bad_wr = wr; 3189e6631814SSagi Grimberg goto out; 3190e6631814SSagi Grimberg } 3191e6631814SSagi Grimberg 3192e6631814SSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, 3193e6631814SSagi Grimberg nreq, get_fence(fence, wr), 3194e6631814SSagi Grimberg next_fence, MLX5_OPCODE_SET_PSV); 3195e6631814SSagi Grimberg num_sge = 0; 3196e6631814SSagi Grimberg goto skip_psv; 3197e6631814SSagi Grimberg 3198e126ba97SEli Cohen default: 3199e126ba97SEli Cohen break; 3200e126ba97SEli Cohen } 3201e126ba97SEli Cohen break; 3202e126ba97SEli Cohen 3203e126ba97SEli Cohen case IB_QPT_UC: 3204e126ba97SEli Cohen switch (wr->opcode) { 3205e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 3206e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 3207e622f2f4SChristoph Hellwig set_raddr_seg(seg, rdma_wr(wr)->remote_addr, 3208e622f2f4SChristoph Hellwig rdma_wr(wr)->rkey); 3209e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 3210e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 3211e126ba97SEli Cohen break; 3212e126ba97SEli Cohen 3213e126ba97SEli Cohen default: 3214e126ba97SEli Cohen break; 3215e126ba97SEli Cohen } 3216e126ba97SEli Cohen break; 3217e126ba97SEli Cohen 3218e126ba97SEli Cohen case IB_QPT_UD: 3219e126ba97SEli Cohen case IB_QPT_SMI: 3220e126ba97SEli Cohen case IB_QPT_GSI: 3221e126ba97SEli Cohen set_datagram_seg(seg, wr); 3222e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_datagram_seg); 3223e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_datagram_seg) / 16; 3224e126ba97SEli Cohen if (unlikely((seg == qend))) 3225e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 3226e126ba97SEli Cohen break; 3227e126ba97SEli Cohen 3228e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 3229e126ba97SEli Cohen if (wr->opcode != MLX5_IB_WR_UMR) { 3230e126ba97SEli Cohen err = -EINVAL; 3231e126ba97SEli Cohen mlx5_ib_warn(dev, "bad opcode\n"); 3232e126ba97SEli Cohen goto out; 3233e126ba97SEli Cohen } 3234e126ba97SEli Cohen qp->sq.wr_data[idx] = MLX5_IB_WR_UMR; 3235e622f2f4SChristoph Hellwig ctrl->imm = cpu_to_be32(umr_wr(wr)->mkey); 3236e126ba97SEli Cohen set_reg_umr_segment(seg, wr); 3237e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 3238e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 3239e126ba97SEli Cohen if (unlikely((seg == qend))) 3240e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 3241e126ba97SEli Cohen set_reg_mkey_segment(seg, wr); 3242e126ba97SEli Cohen seg += sizeof(struct mlx5_mkey_seg); 3243e126ba97SEli Cohen size += sizeof(struct mlx5_mkey_seg) / 16; 3244e126ba97SEli Cohen if (unlikely((seg == qend))) 3245e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 3246e126ba97SEli Cohen break; 3247e126ba97SEli Cohen 3248e126ba97SEli Cohen default: 3249e126ba97SEli Cohen break; 3250e126ba97SEli Cohen } 3251e126ba97SEli Cohen 3252e126ba97SEli Cohen if (wr->send_flags & IB_SEND_INLINE && num_sge) { 3253e126ba97SEli Cohen int uninitialized_var(sz); 3254e126ba97SEli Cohen 3255e126ba97SEli Cohen err = set_data_inl_seg(qp, wr, seg, &sz); 3256e126ba97SEli Cohen if (unlikely(err)) { 3257e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 3258e126ba97SEli Cohen *bad_wr = wr; 3259e126ba97SEli Cohen goto out; 3260e126ba97SEli Cohen } 3261e126ba97SEli Cohen inl = 1; 3262e126ba97SEli Cohen size += sz; 3263e126ba97SEli Cohen } else { 3264e126ba97SEli Cohen dpseg = seg; 3265e126ba97SEli Cohen for (i = 0; i < num_sge; i++) { 3266e126ba97SEli Cohen if (unlikely(dpseg == qend)) { 3267e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 3268e126ba97SEli Cohen dpseg = seg; 3269e126ba97SEli Cohen } 3270e126ba97SEli Cohen if (likely(wr->sg_list[i].length)) { 3271e126ba97SEli Cohen set_data_ptr_seg(dpseg, wr->sg_list + i); 3272e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_data_seg) / 16; 3273e126ba97SEli Cohen dpseg++; 3274e126ba97SEli Cohen } 3275e126ba97SEli Cohen } 3276e126ba97SEli Cohen } 3277e126ba97SEli Cohen 32786e5eadacSSagi Grimberg finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq, 32796e5eadacSSagi Grimberg get_fence(fence, wr), next_fence, 32806e5eadacSSagi Grimberg mlx5_ib_opcode[wr->opcode]); 3281e6631814SSagi Grimberg skip_psv: 3282e126ba97SEli Cohen if (0) 3283e126ba97SEli Cohen dump_wqe(qp, idx, size); 3284e126ba97SEli Cohen } 3285e126ba97SEli Cohen 3286e126ba97SEli Cohen out: 3287e126ba97SEli Cohen if (likely(nreq)) { 3288e126ba97SEli Cohen qp->sq.head += nreq; 3289e126ba97SEli Cohen 3290e126ba97SEli Cohen /* Make sure that descriptors are written before 3291e126ba97SEli Cohen * updating doorbell record and ringing the doorbell 3292e126ba97SEli Cohen */ 3293e126ba97SEli Cohen wmb(); 3294e126ba97SEli Cohen 3295e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post); 3296e126ba97SEli Cohen 3297ada388f7SEli Cohen /* Make sure doorbell record is visible to the HCA before 3298ada388f7SEli Cohen * we hit doorbell */ 3299ada388f7SEli Cohen wmb(); 3300ada388f7SEli Cohen 3301e126ba97SEli Cohen if (bf->need_lock) 3302e126ba97SEli Cohen spin_lock(&bf->lock); 33036a4f139aSEli Cohen else 33046a4f139aSEli Cohen __acquire(&bf->lock); 3305e126ba97SEli Cohen 3306e126ba97SEli Cohen /* TBD enable WC */ 3307e126ba97SEli Cohen if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) { 3308e126ba97SEli Cohen mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp); 3309e126ba97SEli Cohen /* wc_wmb(); */ 3310e126ba97SEli Cohen } else { 3311e126ba97SEli Cohen mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset, 3312e126ba97SEli Cohen MLX5_GET_DOORBELL_LOCK(&bf->lock32)); 3313e126ba97SEli Cohen /* Make sure doorbells don't leak out of SQ spinlock 3314e126ba97SEli Cohen * and reach the HCA out of order. 3315e126ba97SEli Cohen */ 3316e126ba97SEli Cohen mmiowb(); 3317e126ba97SEli Cohen } 3318e126ba97SEli Cohen bf->offset ^= bf->buf_size; 3319e126ba97SEli Cohen if (bf->need_lock) 3320e126ba97SEli Cohen spin_unlock(&bf->lock); 33216a4f139aSEli Cohen else 33226a4f139aSEli Cohen __release(&bf->lock); 3323e126ba97SEli Cohen } 3324e126ba97SEli Cohen 3325e126ba97SEli Cohen spin_unlock_irqrestore(&qp->sq.lock, flags); 3326e126ba97SEli Cohen 3327e126ba97SEli Cohen return err; 3328e126ba97SEli Cohen } 3329e126ba97SEli Cohen 3330e126ba97SEli Cohen static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size) 3331e126ba97SEli Cohen { 3332e126ba97SEli Cohen sig->signature = calc_sig(sig, size); 3333e126ba97SEli Cohen } 3334e126ba97SEli Cohen 3335e126ba97SEli Cohen int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 3336e126ba97SEli Cohen struct ib_recv_wr **bad_wr) 3337e126ba97SEli Cohen { 3338e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 3339e126ba97SEli Cohen struct mlx5_wqe_data_seg *scat; 3340e126ba97SEli Cohen struct mlx5_rwqe_sig *sig; 3341e126ba97SEli Cohen unsigned long flags; 3342e126ba97SEli Cohen int err = 0; 3343e126ba97SEli Cohen int nreq; 3344e126ba97SEli Cohen int ind; 3345e126ba97SEli Cohen int i; 3346e126ba97SEli Cohen 3347e126ba97SEli Cohen spin_lock_irqsave(&qp->rq.lock, flags); 3348e126ba97SEli Cohen 3349e126ba97SEli Cohen ind = qp->rq.head & (qp->rq.wqe_cnt - 1); 3350e126ba97SEli Cohen 3351e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 3352e126ba97SEli Cohen if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) { 3353e126ba97SEli Cohen err = -ENOMEM; 3354e126ba97SEli Cohen *bad_wr = wr; 3355e126ba97SEli Cohen goto out; 3356e126ba97SEli Cohen } 3357e126ba97SEli Cohen 3358e126ba97SEli Cohen if (unlikely(wr->num_sge > qp->rq.max_gs)) { 3359e126ba97SEli Cohen err = -EINVAL; 3360e126ba97SEli Cohen *bad_wr = wr; 3361e126ba97SEli Cohen goto out; 3362e126ba97SEli Cohen } 3363e126ba97SEli Cohen 3364e126ba97SEli Cohen scat = get_recv_wqe(qp, ind); 3365e126ba97SEli Cohen if (qp->wq_sig) 3366e126ba97SEli Cohen scat++; 3367e126ba97SEli Cohen 3368e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) 3369e126ba97SEli Cohen set_data_ptr_seg(scat + i, wr->sg_list + i); 3370e126ba97SEli Cohen 3371e126ba97SEli Cohen if (i < qp->rq.max_gs) { 3372e126ba97SEli Cohen scat[i].byte_count = 0; 3373e126ba97SEli Cohen scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY); 3374e126ba97SEli Cohen scat[i].addr = 0; 3375e126ba97SEli Cohen } 3376e126ba97SEli Cohen 3377e126ba97SEli Cohen if (qp->wq_sig) { 3378e126ba97SEli Cohen sig = (struct mlx5_rwqe_sig *)scat; 3379e126ba97SEli Cohen set_sig_seg(sig, (qp->rq.max_gs + 1) << 2); 3380e126ba97SEli Cohen } 3381e126ba97SEli Cohen 3382e126ba97SEli Cohen qp->rq.wrid[ind] = wr->wr_id; 3383e126ba97SEli Cohen 3384e126ba97SEli Cohen ind = (ind + 1) & (qp->rq.wqe_cnt - 1); 3385e126ba97SEli Cohen } 3386e126ba97SEli Cohen 3387e126ba97SEli Cohen out: 3388e126ba97SEli Cohen if (likely(nreq)) { 3389e126ba97SEli Cohen qp->rq.head += nreq; 3390e126ba97SEli Cohen 3391e126ba97SEli Cohen /* Make sure that descriptors are written before 3392e126ba97SEli Cohen * doorbell record. 3393e126ba97SEli Cohen */ 3394e126ba97SEli Cohen wmb(); 3395e126ba97SEli Cohen 3396e126ba97SEli Cohen *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff); 3397e126ba97SEli Cohen } 3398e126ba97SEli Cohen 3399e126ba97SEli Cohen spin_unlock_irqrestore(&qp->rq.lock, flags); 3400e126ba97SEli Cohen 3401e126ba97SEli Cohen return err; 3402e126ba97SEli Cohen } 3403e126ba97SEli Cohen 3404e126ba97SEli Cohen static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state) 3405e126ba97SEli Cohen { 3406e126ba97SEli Cohen switch (mlx5_state) { 3407e126ba97SEli Cohen case MLX5_QP_STATE_RST: return IB_QPS_RESET; 3408e126ba97SEli Cohen case MLX5_QP_STATE_INIT: return IB_QPS_INIT; 3409e126ba97SEli Cohen case MLX5_QP_STATE_RTR: return IB_QPS_RTR; 3410e126ba97SEli Cohen case MLX5_QP_STATE_RTS: return IB_QPS_RTS; 3411e126ba97SEli Cohen case MLX5_QP_STATE_SQ_DRAINING: 3412e126ba97SEli Cohen case MLX5_QP_STATE_SQD: return IB_QPS_SQD; 3413e126ba97SEli Cohen case MLX5_QP_STATE_SQER: return IB_QPS_SQE; 3414e126ba97SEli Cohen case MLX5_QP_STATE_ERR: return IB_QPS_ERR; 3415e126ba97SEli Cohen default: return -1; 3416e126ba97SEli Cohen } 3417e126ba97SEli Cohen } 3418e126ba97SEli Cohen 3419e126ba97SEli Cohen static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state) 3420e126ba97SEli Cohen { 3421e126ba97SEli Cohen switch (mlx5_mig_state) { 3422e126ba97SEli Cohen case MLX5_QP_PM_ARMED: return IB_MIG_ARMED; 3423e126ba97SEli Cohen case MLX5_QP_PM_REARM: return IB_MIG_REARM; 3424e126ba97SEli Cohen case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED; 3425e126ba97SEli Cohen default: return -1; 3426e126ba97SEli Cohen } 3427e126ba97SEli Cohen } 3428e126ba97SEli Cohen 3429e126ba97SEli Cohen static int to_ib_qp_access_flags(int mlx5_flags) 3430e126ba97SEli Cohen { 3431e126ba97SEli Cohen int ib_flags = 0; 3432e126ba97SEli Cohen 3433e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RRE) 3434e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_READ; 3435e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RWE) 3436e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_WRITE; 3437e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RAE) 3438e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_ATOMIC; 3439e126ba97SEli Cohen 3440e126ba97SEli Cohen return ib_flags; 3441e126ba97SEli Cohen } 3442e126ba97SEli Cohen 3443e126ba97SEli Cohen static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr, 3444e126ba97SEli Cohen struct mlx5_qp_path *path) 3445e126ba97SEli Cohen { 34469603b61dSJack Morgenstein struct mlx5_core_dev *dev = ibdev->mdev; 3447e126ba97SEli Cohen 3448e126ba97SEli Cohen memset(ib_ah_attr, 0, sizeof(*ib_ah_attr)); 3449e126ba97SEli Cohen ib_ah_attr->port_num = path->port; 3450e126ba97SEli Cohen 3451c7a08ac7SEli Cohen if (ib_ah_attr->port_num == 0 || 3452938fe83cSSaeed Mahameed ib_ah_attr->port_num > MLX5_CAP_GEN(dev, num_ports)) 3453e126ba97SEli Cohen return; 3454e126ba97SEli Cohen 34552811ba51SAchiad Shochat ib_ah_attr->sl = path->dci_cfi_prio_sl & 0xf; 3456e126ba97SEli Cohen 3457e126ba97SEli Cohen ib_ah_attr->dlid = be16_to_cpu(path->rlid); 3458e126ba97SEli Cohen ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f; 3459e126ba97SEli Cohen ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0; 3460e126ba97SEli Cohen ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0; 3461e126ba97SEli Cohen if (ib_ah_attr->ah_flags) { 3462e126ba97SEli Cohen ib_ah_attr->grh.sgid_index = path->mgid_index; 3463e126ba97SEli Cohen ib_ah_attr->grh.hop_limit = path->hop_limit; 3464e126ba97SEli Cohen ib_ah_attr->grh.traffic_class = 3465e126ba97SEli Cohen (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; 3466e126ba97SEli Cohen ib_ah_attr->grh.flow_label = 3467e126ba97SEli Cohen be32_to_cpu(path->tclass_flowlabel) & 0xfffff; 3468e126ba97SEli Cohen memcpy(ib_ah_attr->grh.dgid.raw, 3469e126ba97SEli Cohen path->rgid, sizeof(ib_ah_attr->grh.dgid.raw)); 3470e126ba97SEli Cohen } 3471e126ba97SEli Cohen } 3472e126ba97SEli Cohen 34736d2f89dfSmajd@mellanox.com static int query_raw_packet_qp_sq_state(struct mlx5_ib_dev *dev, 34746d2f89dfSmajd@mellanox.com struct mlx5_ib_sq *sq, 34756d2f89dfSmajd@mellanox.com u8 *sq_state) 3476e126ba97SEli Cohen { 34776d2f89dfSmajd@mellanox.com void *out; 34786d2f89dfSmajd@mellanox.com void *sqc; 34796d2f89dfSmajd@mellanox.com int inlen; 34806d2f89dfSmajd@mellanox.com int err; 34816d2f89dfSmajd@mellanox.com 34826d2f89dfSmajd@mellanox.com inlen = MLX5_ST_SZ_BYTES(query_sq_out); 34836d2f89dfSmajd@mellanox.com out = mlx5_vzalloc(inlen); 34846d2f89dfSmajd@mellanox.com if (!out) 34856d2f89dfSmajd@mellanox.com return -ENOMEM; 34866d2f89dfSmajd@mellanox.com 34876d2f89dfSmajd@mellanox.com err = mlx5_core_query_sq(dev->mdev, sq->base.mqp.qpn, out); 34886d2f89dfSmajd@mellanox.com if (err) 34896d2f89dfSmajd@mellanox.com goto out; 34906d2f89dfSmajd@mellanox.com 34916d2f89dfSmajd@mellanox.com sqc = MLX5_ADDR_OF(query_sq_out, out, sq_context); 34926d2f89dfSmajd@mellanox.com *sq_state = MLX5_GET(sqc, sqc, state); 34936d2f89dfSmajd@mellanox.com sq->state = *sq_state; 34946d2f89dfSmajd@mellanox.com 34956d2f89dfSmajd@mellanox.com out: 34966d2f89dfSmajd@mellanox.com kvfree(out); 34976d2f89dfSmajd@mellanox.com return err; 34986d2f89dfSmajd@mellanox.com } 34996d2f89dfSmajd@mellanox.com 35006d2f89dfSmajd@mellanox.com static int query_raw_packet_qp_rq_state(struct mlx5_ib_dev *dev, 35016d2f89dfSmajd@mellanox.com struct mlx5_ib_rq *rq, 35026d2f89dfSmajd@mellanox.com u8 *rq_state) 35036d2f89dfSmajd@mellanox.com { 35046d2f89dfSmajd@mellanox.com void *out; 35056d2f89dfSmajd@mellanox.com void *rqc; 35066d2f89dfSmajd@mellanox.com int inlen; 35076d2f89dfSmajd@mellanox.com int err; 35086d2f89dfSmajd@mellanox.com 35096d2f89dfSmajd@mellanox.com inlen = MLX5_ST_SZ_BYTES(query_rq_out); 35106d2f89dfSmajd@mellanox.com out = mlx5_vzalloc(inlen); 35116d2f89dfSmajd@mellanox.com if (!out) 35126d2f89dfSmajd@mellanox.com return -ENOMEM; 35136d2f89dfSmajd@mellanox.com 35146d2f89dfSmajd@mellanox.com err = mlx5_core_query_rq(dev->mdev, rq->base.mqp.qpn, out); 35156d2f89dfSmajd@mellanox.com if (err) 35166d2f89dfSmajd@mellanox.com goto out; 35176d2f89dfSmajd@mellanox.com 35186d2f89dfSmajd@mellanox.com rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context); 35196d2f89dfSmajd@mellanox.com *rq_state = MLX5_GET(rqc, rqc, state); 35206d2f89dfSmajd@mellanox.com rq->state = *rq_state; 35216d2f89dfSmajd@mellanox.com 35226d2f89dfSmajd@mellanox.com out: 35236d2f89dfSmajd@mellanox.com kvfree(out); 35246d2f89dfSmajd@mellanox.com return err; 35256d2f89dfSmajd@mellanox.com } 35266d2f89dfSmajd@mellanox.com 35276d2f89dfSmajd@mellanox.com static int sqrq_state_to_qp_state(u8 sq_state, u8 rq_state, 35286d2f89dfSmajd@mellanox.com struct mlx5_ib_qp *qp, u8 *qp_state) 35296d2f89dfSmajd@mellanox.com { 35306d2f89dfSmajd@mellanox.com static const u8 sqrq_trans[MLX5_RQ_NUM_STATE][MLX5_SQ_NUM_STATE] = { 35316d2f89dfSmajd@mellanox.com [MLX5_RQC_STATE_RST] = { 35326d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RST] = IB_QPS_RESET, 35336d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD, 35346d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE_BAD, 35356d2f89dfSmajd@mellanox.com [MLX5_SQ_STATE_NA] = IB_QPS_RESET, 35366d2f89dfSmajd@mellanox.com }, 35376d2f89dfSmajd@mellanox.com [MLX5_RQC_STATE_RDY] = { 35386d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD, 35396d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE, 35406d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_ERR] = IB_QPS_SQE, 35416d2f89dfSmajd@mellanox.com [MLX5_SQ_STATE_NA] = MLX5_QP_STATE, 35426d2f89dfSmajd@mellanox.com }, 35436d2f89dfSmajd@mellanox.com [MLX5_RQC_STATE_ERR] = { 35446d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD, 35456d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD, 35466d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_ERR] = IB_QPS_ERR, 35476d2f89dfSmajd@mellanox.com [MLX5_SQ_STATE_NA] = IB_QPS_ERR, 35486d2f89dfSmajd@mellanox.com }, 35496d2f89dfSmajd@mellanox.com [MLX5_RQ_STATE_NA] = { 35506d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RST] = IB_QPS_RESET, 35516d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE, 35526d2f89dfSmajd@mellanox.com [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE, 35536d2f89dfSmajd@mellanox.com [MLX5_SQ_STATE_NA] = MLX5_QP_STATE_BAD, 35546d2f89dfSmajd@mellanox.com }, 35556d2f89dfSmajd@mellanox.com }; 35566d2f89dfSmajd@mellanox.com 35576d2f89dfSmajd@mellanox.com *qp_state = sqrq_trans[rq_state][sq_state]; 35586d2f89dfSmajd@mellanox.com 35596d2f89dfSmajd@mellanox.com if (*qp_state == MLX5_QP_STATE_BAD) { 35606d2f89dfSmajd@mellanox.com WARN(1, "Buggy Raw Packet QP state, SQ 0x%x state: 0x%x, RQ 0x%x state: 0x%x", 35616d2f89dfSmajd@mellanox.com qp->raw_packet_qp.sq.base.mqp.qpn, sq_state, 35626d2f89dfSmajd@mellanox.com qp->raw_packet_qp.rq.base.mqp.qpn, rq_state); 35636d2f89dfSmajd@mellanox.com return -EINVAL; 35646d2f89dfSmajd@mellanox.com } 35656d2f89dfSmajd@mellanox.com 35666d2f89dfSmajd@mellanox.com if (*qp_state == MLX5_QP_STATE) 35676d2f89dfSmajd@mellanox.com *qp_state = qp->state; 35686d2f89dfSmajd@mellanox.com 35696d2f89dfSmajd@mellanox.com return 0; 35706d2f89dfSmajd@mellanox.com } 35716d2f89dfSmajd@mellanox.com 35726d2f89dfSmajd@mellanox.com static int query_raw_packet_qp_state(struct mlx5_ib_dev *dev, 35736d2f89dfSmajd@mellanox.com struct mlx5_ib_qp *qp, 35746d2f89dfSmajd@mellanox.com u8 *raw_packet_qp_state) 35756d2f89dfSmajd@mellanox.com { 35766d2f89dfSmajd@mellanox.com struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp; 35776d2f89dfSmajd@mellanox.com struct mlx5_ib_sq *sq = &raw_packet_qp->sq; 35786d2f89dfSmajd@mellanox.com struct mlx5_ib_rq *rq = &raw_packet_qp->rq; 35796d2f89dfSmajd@mellanox.com int err; 35806d2f89dfSmajd@mellanox.com u8 sq_state = MLX5_SQ_STATE_NA; 35816d2f89dfSmajd@mellanox.com u8 rq_state = MLX5_RQ_STATE_NA; 35826d2f89dfSmajd@mellanox.com 35836d2f89dfSmajd@mellanox.com if (qp->sq.wqe_cnt) { 35846d2f89dfSmajd@mellanox.com err = query_raw_packet_qp_sq_state(dev, sq, &sq_state); 35856d2f89dfSmajd@mellanox.com if (err) 35866d2f89dfSmajd@mellanox.com return err; 35876d2f89dfSmajd@mellanox.com } 35886d2f89dfSmajd@mellanox.com 35896d2f89dfSmajd@mellanox.com if (qp->rq.wqe_cnt) { 35906d2f89dfSmajd@mellanox.com err = query_raw_packet_qp_rq_state(dev, rq, &rq_state); 35916d2f89dfSmajd@mellanox.com if (err) 35926d2f89dfSmajd@mellanox.com return err; 35936d2f89dfSmajd@mellanox.com } 35946d2f89dfSmajd@mellanox.com 35956d2f89dfSmajd@mellanox.com return sqrq_state_to_qp_state(sq_state, rq_state, qp, 35966d2f89dfSmajd@mellanox.com raw_packet_qp_state); 35976d2f89dfSmajd@mellanox.com } 35986d2f89dfSmajd@mellanox.com 35996d2f89dfSmajd@mellanox.com static int query_qp_attr(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, 36006d2f89dfSmajd@mellanox.com struct ib_qp_attr *qp_attr) 36016d2f89dfSmajd@mellanox.com { 3602e126ba97SEli Cohen struct mlx5_query_qp_mbox_out *outb; 3603e126ba97SEli Cohen struct mlx5_qp_context *context; 3604e126ba97SEli Cohen int mlx5_state; 3605e126ba97SEli Cohen int err = 0; 3606e126ba97SEli Cohen 3607e126ba97SEli Cohen outb = kzalloc(sizeof(*outb), GFP_KERNEL); 36086d2f89dfSmajd@mellanox.com if (!outb) 36096d2f89dfSmajd@mellanox.com return -ENOMEM; 36106d2f89dfSmajd@mellanox.com 3611e126ba97SEli Cohen context = &outb->ctx; 361219098df2Smajd@mellanox.com err = mlx5_core_qp_query(dev->mdev, &qp->trans_qp.base.mqp, outb, 361319098df2Smajd@mellanox.com sizeof(*outb)); 3614e126ba97SEli Cohen if (err) 36156d2f89dfSmajd@mellanox.com goto out; 3616e126ba97SEli Cohen 3617e126ba97SEli Cohen mlx5_state = be32_to_cpu(context->flags) >> 28; 3618e126ba97SEli Cohen 3619e126ba97SEli Cohen qp->state = to_ib_qp_state(mlx5_state); 3620e126ba97SEli Cohen qp_attr->path_mtu = context->mtu_msgmax >> 5; 3621e126ba97SEli Cohen qp_attr->path_mig_state = 3622e126ba97SEli Cohen to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3); 3623e126ba97SEli Cohen qp_attr->qkey = be32_to_cpu(context->qkey); 3624e126ba97SEli Cohen qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff; 3625e126ba97SEli Cohen qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff; 3626e126ba97SEli Cohen qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff; 3627e126ba97SEli Cohen qp_attr->qp_access_flags = 3628e126ba97SEli Cohen to_ib_qp_access_flags(be32_to_cpu(context->params2)); 3629e126ba97SEli Cohen 3630e126ba97SEli Cohen if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) { 3631e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); 3632e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); 3633e126ba97SEli Cohen qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f; 3634e126ba97SEli Cohen qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; 3635e126ba97SEli Cohen } 3636e126ba97SEli Cohen 3637e126ba97SEli Cohen qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f; 3638e126ba97SEli Cohen qp_attr->port_num = context->pri_path.port; 3639e126ba97SEli Cohen 3640e126ba97SEli Cohen /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ 3641e126ba97SEli Cohen qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING; 3642e126ba97SEli Cohen 3643e126ba97SEli Cohen qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7); 3644e126ba97SEli Cohen 3645e126ba97SEli Cohen qp_attr->max_dest_rd_atomic = 3646e126ba97SEli Cohen 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); 3647e126ba97SEli Cohen qp_attr->min_rnr_timer = 3648e126ba97SEli Cohen (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; 3649e126ba97SEli Cohen qp_attr->timeout = context->pri_path.ackto_lt >> 3; 3650e126ba97SEli Cohen qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; 3651e126ba97SEli Cohen qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7; 3652e126ba97SEli Cohen qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3; 36536d2f89dfSmajd@mellanox.com 36546d2f89dfSmajd@mellanox.com out: 36556d2f89dfSmajd@mellanox.com kfree(outb); 36566d2f89dfSmajd@mellanox.com return err; 36576d2f89dfSmajd@mellanox.com } 36586d2f89dfSmajd@mellanox.com 36596d2f89dfSmajd@mellanox.com int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, 36606d2f89dfSmajd@mellanox.com int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) 36616d2f89dfSmajd@mellanox.com { 36626d2f89dfSmajd@mellanox.com struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 36636d2f89dfSmajd@mellanox.com struct mlx5_ib_qp *qp = to_mqp(ibqp); 36646d2f89dfSmajd@mellanox.com int err = 0; 36656d2f89dfSmajd@mellanox.com u8 raw_packet_qp_state; 36666d2f89dfSmajd@mellanox.com 36676d2f89dfSmajd@mellanox.com #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 36686d2f89dfSmajd@mellanox.com /* 36696d2f89dfSmajd@mellanox.com * Wait for any outstanding page faults, in case the user frees memory 36706d2f89dfSmajd@mellanox.com * based upon this query's result. 36716d2f89dfSmajd@mellanox.com */ 36726d2f89dfSmajd@mellanox.com flush_workqueue(mlx5_ib_page_fault_wq); 36736d2f89dfSmajd@mellanox.com #endif 36746d2f89dfSmajd@mellanox.com 36756d2f89dfSmajd@mellanox.com mutex_lock(&qp->mutex); 36766d2f89dfSmajd@mellanox.com 36776d2f89dfSmajd@mellanox.com if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) { 36786d2f89dfSmajd@mellanox.com err = query_raw_packet_qp_state(dev, qp, &raw_packet_qp_state); 36796d2f89dfSmajd@mellanox.com if (err) 36806d2f89dfSmajd@mellanox.com goto out; 36816d2f89dfSmajd@mellanox.com qp->state = raw_packet_qp_state; 36826d2f89dfSmajd@mellanox.com qp_attr->port_num = 1; 36836d2f89dfSmajd@mellanox.com } else { 36846d2f89dfSmajd@mellanox.com err = query_qp_attr(dev, qp, qp_attr); 36856d2f89dfSmajd@mellanox.com if (err) 36866d2f89dfSmajd@mellanox.com goto out; 36876d2f89dfSmajd@mellanox.com } 36886d2f89dfSmajd@mellanox.com 36896d2f89dfSmajd@mellanox.com qp_attr->qp_state = qp->state; 3690e126ba97SEli Cohen qp_attr->cur_qp_state = qp_attr->qp_state; 3691e126ba97SEli Cohen qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; 3692e126ba97SEli Cohen qp_attr->cap.max_recv_sge = qp->rq.max_gs; 3693e126ba97SEli Cohen 3694e126ba97SEli Cohen if (!ibqp->uobject) { 3695e126ba97SEli Cohen qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; 3696e126ba97SEli Cohen qp_attr->cap.max_send_sge = qp->sq.max_gs; 3697e126ba97SEli Cohen } else { 3698e126ba97SEli Cohen qp_attr->cap.max_send_wr = 0; 3699e126ba97SEli Cohen qp_attr->cap.max_send_sge = 0; 3700e126ba97SEli Cohen } 3701e126ba97SEli Cohen 3702e126ba97SEli Cohen /* We don't support inline sends for kernel QPs (yet), and we 3703e126ba97SEli Cohen * don't know what userspace's value should be. 3704e126ba97SEli Cohen */ 3705e126ba97SEli Cohen qp_attr->cap.max_inline_data = 0; 3706e126ba97SEli Cohen 3707e126ba97SEli Cohen qp_init_attr->cap = qp_attr->cap; 3708e126ba97SEli Cohen 3709e126ba97SEli Cohen qp_init_attr->create_flags = 0; 3710e126ba97SEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 3711e126ba97SEli Cohen qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; 3712e126ba97SEli Cohen 3713051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL) 3714051f2630SLeon Romanovsky qp_init_attr->create_flags |= IB_QP_CREATE_CROSS_CHANNEL; 3715051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_SEND) 3716051f2630SLeon Romanovsky qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_SEND; 3717051f2630SLeon Romanovsky if (qp->flags & MLX5_IB_QP_MANAGED_RECV) 3718051f2630SLeon Romanovsky qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_RECV; 3719051f2630SLeon Romanovsky 3720e126ba97SEli Cohen qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ? 3721e126ba97SEli Cohen IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR; 3722e126ba97SEli Cohen 3723e126ba97SEli Cohen out: 3724e126ba97SEli Cohen mutex_unlock(&qp->mutex); 3725e126ba97SEli Cohen return err; 3726e126ba97SEli Cohen } 3727e126ba97SEli Cohen 3728e126ba97SEli Cohen struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 3729e126ba97SEli Cohen struct ib_ucontext *context, 3730e126ba97SEli Cohen struct ib_udata *udata) 3731e126ba97SEli Cohen { 3732e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibdev); 3733e126ba97SEli Cohen struct mlx5_ib_xrcd *xrcd; 3734e126ba97SEli Cohen int err; 3735e126ba97SEli Cohen 3736938fe83cSSaeed Mahameed if (!MLX5_CAP_GEN(dev->mdev, xrc)) 3737e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 3738e126ba97SEli Cohen 3739e126ba97SEli Cohen xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL); 3740e126ba97SEli Cohen if (!xrcd) 3741e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3742e126ba97SEli Cohen 37439603b61dSJack Morgenstein err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn); 3744e126ba97SEli Cohen if (err) { 3745e126ba97SEli Cohen kfree(xrcd); 3746e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 3747e126ba97SEli Cohen } 3748e126ba97SEli Cohen 3749e126ba97SEli Cohen return &xrcd->ibxrcd; 3750e126ba97SEli Cohen } 3751e126ba97SEli Cohen 3752e126ba97SEli Cohen int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 3753e126ba97SEli Cohen { 3754e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(xrcd->device); 3755e126ba97SEli Cohen u32 xrcdn = to_mxrcd(xrcd)->xrcdn; 3756e126ba97SEli Cohen int err; 3757e126ba97SEli Cohen 37589603b61dSJack Morgenstein err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn); 3759e126ba97SEli Cohen if (err) { 3760e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn); 3761e126ba97SEli Cohen return err; 3762e126ba97SEli Cohen } 3763e126ba97SEli Cohen 3764e126ba97SEli Cohen kfree(xrcd); 3765e126ba97SEli Cohen 3766e126ba97SEli Cohen return 0; 3767e126ba97SEli Cohen } 3768