1e126ba97SEli Cohen /* 2e126ba97SEli Cohen * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. 3e126ba97SEli Cohen * 4e126ba97SEli Cohen * This software is available to you under a choice of one of two 5e126ba97SEli Cohen * licenses. You may choose to be licensed under the terms of the GNU 6e126ba97SEli Cohen * General Public License (GPL) Version 2, available from the file 7e126ba97SEli Cohen * COPYING in the main directory of this source tree, or the 8e126ba97SEli Cohen * OpenIB.org BSD license below: 9e126ba97SEli Cohen * 10e126ba97SEli Cohen * Redistribution and use in source and binary forms, with or 11e126ba97SEli Cohen * without modification, are permitted provided that the following 12e126ba97SEli Cohen * conditions are met: 13e126ba97SEli Cohen * 14e126ba97SEli Cohen * - Redistributions of source code must retain the above 15e126ba97SEli Cohen * copyright notice, this list of conditions and the following 16e126ba97SEli Cohen * disclaimer. 17e126ba97SEli Cohen * 18e126ba97SEli Cohen * - Redistributions in binary form must reproduce the above 19e126ba97SEli Cohen * copyright notice, this list of conditions and the following 20e126ba97SEli Cohen * disclaimer in the documentation and/or other materials 21e126ba97SEli Cohen * provided with the distribution. 22e126ba97SEli Cohen * 23e126ba97SEli Cohen * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e126ba97SEli Cohen * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e126ba97SEli Cohen * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e126ba97SEli Cohen * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e126ba97SEli Cohen * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e126ba97SEli Cohen * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e126ba97SEli Cohen * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e126ba97SEli Cohen * SOFTWARE. 31e126ba97SEli Cohen */ 32e126ba97SEli Cohen 33e126ba97SEli Cohen #include <linux/module.h> 34e126ba97SEli Cohen #include <rdma/ib_umem.h> 35e126ba97SEli Cohen #include "mlx5_ib.h" 36e126ba97SEli Cohen #include "user.h" 37e126ba97SEli Cohen 38e126ba97SEli Cohen /* not supported currently */ 39e126ba97SEli Cohen static int wq_signature; 40e126ba97SEli Cohen 41e126ba97SEli Cohen enum { 42e126ba97SEli Cohen MLX5_IB_ACK_REQ_FREQ = 8, 43e126ba97SEli Cohen }; 44e126ba97SEli Cohen 45e126ba97SEli Cohen enum { 46e126ba97SEli Cohen MLX5_IB_DEFAULT_SCHED_QUEUE = 0x83, 47e126ba97SEli Cohen MLX5_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f, 48e126ba97SEli Cohen MLX5_IB_LINK_TYPE_IB = 0, 49e126ba97SEli Cohen MLX5_IB_LINK_TYPE_ETH = 1 50e126ba97SEli Cohen }; 51e126ba97SEli Cohen 52e126ba97SEli Cohen enum { 53e126ba97SEli Cohen MLX5_IB_SQ_STRIDE = 6, 54e126ba97SEli Cohen MLX5_IB_CACHE_LINE_SIZE = 64, 55e126ba97SEli Cohen }; 56e126ba97SEli Cohen 57e126ba97SEli Cohen static const u32 mlx5_ib_opcode[] = { 58e126ba97SEli Cohen [IB_WR_SEND] = MLX5_OPCODE_SEND, 59e126ba97SEli Cohen [IB_WR_SEND_WITH_IMM] = MLX5_OPCODE_SEND_IMM, 60e126ba97SEli Cohen [IB_WR_RDMA_WRITE] = MLX5_OPCODE_RDMA_WRITE, 61e126ba97SEli Cohen [IB_WR_RDMA_WRITE_WITH_IMM] = MLX5_OPCODE_RDMA_WRITE_IMM, 62e126ba97SEli Cohen [IB_WR_RDMA_READ] = MLX5_OPCODE_RDMA_READ, 63e126ba97SEli Cohen [IB_WR_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_CS, 64e126ba97SEli Cohen [IB_WR_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_FA, 65e126ba97SEli Cohen [IB_WR_SEND_WITH_INV] = MLX5_OPCODE_SEND_INVAL, 66e126ba97SEli Cohen [IB_WR_LOCAL_INV] = MLX5_OPCODE_UMR, 67e126ba97SEli Cohen [IB_WR_FAST_REG_MR] = MLX5_OPCODE_UMR, 68e126ba97SEli Cohen [IB_WR_MASKED_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_MASKED_CS, 69e126ba97SEli Cohen [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_MASKED_FA, 70e126ba97SEli Cohen [MLX5_IB_WR_UMR] = MLX5_OPCODE_UMR, 71e126ba97SEli Cohen }; 72e126ba97SEli Cohen 73e126ba97SEli Cohen struct umr_wr { 74e126ba97SEli Cohen u64 virt_addr; 75e126ba97SEli Cohen struct ib_pd *pd; 76e126ba97SEli Cohen unsigned int page_shift; 77e126ba97SEli Cohen unsigned int npages; 78e126ba97SEli Cohen u32 length; 79e126ba97SEli Cohen int access_flags; 80e126ba97SEli Cohen u32 mkey; 81e126ba97SEli Cohen }; 82e126ba97SEli Cohen 83e126ba97SEli Cohen static int is_qp0(enum ib_qp_type qp_type) 84e126ba97SEli Cohen { 85e126ba97SEli Cohen return qp_type == IB_QPT_SMI; 86e126ba97SEli Cohen } 87e126ba97SEli Cohen 88e126ba97SEli Cohen static int is_qp1(enum ib_qp_type qp_type) 89e126ba97SEli Cohen { 90e126ba97SEli Cohen return qp_type == IB_QPT_GSI; 91e126ba97SEli Cohen } 92e126ba97SEli Cohen 93e126ba97SEli Cohen static int is_sqp(enum ib_qp_type qp_type) 94e126ba97SEli Cohen { 95e126ba97SEli Cohen return is_qp0(qp_type) || is_qp1(qp_type); 96e126ba97SEli Cohen } 97e126ba97SEli Cohen 98e126ba97SEli Cohen static void *get_wqe(struct mlx5_ib_qp *qp, int offset) 99e126ba97SEli Cohen { 100e126ba97SEli Cohen return mlx5_buf_offset(&qp->buf, offset); 101e126ba97SEli Cohen } 102e126ba97SEli Cohen 103e126ba97SEli Cohen static void *get_recv_wqe(struct mlx5_ib_qp *qp, int n) 104e126ba97SEli Cohen { 105e126ba97SEli Cohen return get_wqe(qp, qp->rq.offset + (n << qp->rq.wqe_shift)); 106e126ba97SEli Cohen } 107e126ba97SEli Cohen 108e126ba97SEli Cohen void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n) 109e126ba97SEli Cohen { 110e126ba97SEli Cohen return get_wqe(qp, qp->sq.offset + (n << MLX5_IB_SQ_STRIDE)); 111e126ba97SEli Cohen } 112e126ba97SEli Cohen 113e126ba97SEli Cohen static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type) 114e126ba97SEli Cohen { 115e126ba97SEli Cohen struct ib_qp *ibqp = &to_mibqp(qp)->ibqp; 116e126ba97SEli Cohen struct ib_event event; 117e126ba97SEli Cohen 118e126ba97SEli Cohen if (type == MLX5_EVENT_TYPE_PATH_MIG) 119e126ba97SEli Cohen to_mibqp(qp)->port = to_mibqp(qp)->alt_port; 120e126ba97SEli Cohen 121e126ba97SEli Cohen if (ibqp->event_handler) { 122e126ba97SEli Cohen event.device = ibqp->device; 123e126ba97SEli Cohen event.element.qp = ibqp; 124e126ba97SEli Cohen switch (type) { 125e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG: 126e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG; 127e126ba97SEli Cohen break; 128e126ba97SEli Cohen case MLX5_EVENT_TYPE_COMM_EST: 129e126ba97SEli Cohen event.event = IB_EVENT_COMM_EST; 130e126ba97SEli Cohen break; 131e126ba97SEli Cohen case MLX5_EVENT_TYPE_SQ_DRAINED: 132e126ba97SEli Cohen event.event = IB_EVENT_SQ_DRAINED; 133e126ba97SEli Cohen break; 134e126ba97SEli Cohen case MLX5_EVENT_TYPE_SRQ_LAST_WQE: 135e126ba97SEli Cohen event.event = IB_EVENT_QP_LAST_WQE_REACHED; 136e126ba97SEli Cohen break; 137e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: 138e126ba97SEli Cohen event.event = IB_EVENT_QP_FATAL; 139e126ba97SEli Cohen break; 140e126ba97SEli Cohen case MLX5_EVENT_TYPE_PATH_MIG_FAILED: 141e126ba97SEli Cohen event.event = IB_EVENT_PATH_MIG_ERR; 142e126ba97SEli Cohen break; 143e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: 144e126ba97SEli Cohen event.event = IB_EVENT_QP_REQ_ERR; 145e126ba97SEli Cohen break; 146e126ba97SEli Cohen case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: 147e126ba97SEli Cohen event.event = IB_EVENT_QP_ACCESS_ERR; 148e126ba97SEli Cohen break; 149e126ba97SEli Cohen default: 150e126ba97SEli Cohen pr_warn("mlx5_ib: Unexpected event type %d on QP %06x\n", type, qp->qpn); 151e126ba97SEli Cohen return; 152e126ba97SEli Cohen } 153e126ba97SEli Cohen 154e126ba97SEli Cohen ibqp->event_handler(&event, ibqp->qp_context); 155e126ba97SEli Cohen } 156e126ba97SEli Cohen } 157e126ba97SEli Cohen 158e126ba97SEli Cohen static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap, 159e126ba97SEli Cohen int has_rq, struct mlx5_ib_qp *qp, struct mlx5_ib_create_qp *ucmd) 160e126ba97SEli Cohen { 161e126ba97SEli Cohen int wqe_size; 162e126ba97SEli Cohen int wq_size; 163e126ba97SEli Cohen 164e126ba97SEli Cohen /* Sanity check RQ size before proceeding */ 165e126ba97SEli Cohen if (cap->max_recv_wr > dev->mdev.caps.max_wqes) 166e126ba97SEli Cohen return -EINVAL; 167e126ba97SEli Cohen 168e126ba97SEli Cohen if (!has_rq) { 169e126ba97SEli Cohen qp->rq.max_gs = 0; 170e126ba97SEli Cohen qp->rq.wqe_cnt = 0; 171e126ba97SEli Cohen qp->rq.wqe_shift = 0; 172e126ba97SEli Cohen } else { 173e126ba97SEli Cohen if (ucmd) { 174e126ba97SEli Cohen qp->rq.wqe_cnt = ucmd->rq_wqe_count; 175e126ba97SEli Cohen qp->rq.wqe_shift = ucmd->rq_wqe_shift; 176e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 177e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 178e126ba97SEli Cohen } else { 179e126ba97SEli Cohen wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0; 180e126ba97SEli Cohen wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg); 181e126ba97SEli Cohen wqe_size = roundup_pow_of_two(wqe_size); 182e126ba97SEli Cohen wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size; 183e126ba97SEli Cohen wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB); 184e126ba97SEli Cohen qp->rq.wqe_cnt = wq_size / wqe_size; 185e126ba97SEli Cohen if (wqe_size > dev->mdev.caps.max_rq_desc_sz) { 186e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d, max %d\n", 187e126ba97SEli Cohen wqe_size, 188e126ba97SEli Cohen dev->mdev.caps.max_rq_desc_sz); 189e126ba97SEli Cohen return -EINVAL; 190e126ba97SEli Cohen } 191e126ba97SEli Cohen qp->rq.wqe_shift = ilog2(wqe_size); 192e126ba97SEli Cohen qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig; 193e126ba97SEli Cohen qp->rq.max_post = qp->rq.wqe_cnt; 194e126ba97SEli Cohen } 195e126ba97SEli Cohen } 196e126ba97SEli Cohen 197e126ba97SEli Cohen return 0; 198e126ba97SEli Cohen } 199e126ba97SEli Cohen 200e126ba97SEli Cohen static int sq_overhead(enum ib_qp_type qp_type) 201e126ba97SEli Cohen { 202618af384SAndi Shyti int size = 0; 203e126ba97SEli Cohen 204e126ba97SEli Cohen switch (qp_type) { 205e126ba97SEli Cohen case IB_QPT_XRC_INI: 206b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_xrc_seg); 207e126ba97SEli Cohen /* fall through */ 208e126ba97SEli Cohen case IB_QPT_RC: 209e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 210e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg) + 211e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 212e126ba97SEli Cohen break; 213e126ba97SEli Cohen 214b125a54bSEli Cohen case IB_QPT_XRC_TGT: 215b125a54bSEli Cohen return 0; 216b125a54bSEli Cohen 217e126ba97SEli Cohen case IB_QPT_UC: 218b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 219e126ba97SEli Cohen sizeof(struct mlx5_wqe_raddr_seg); 220e126ba97SEli Cohen break; 221e126ba97SEli Cohen 222e126ba97SEli Cohen case IB_QPT_UD: 223e126ba97SEli Cohen case IB_QPT_SMI: 224e126ba97SEli Cohen case IB_QPT_GSI: 225b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 226e126ba97SEli Cohen sizeof(struct mlx5_wqe_datagram_seg); 227e126ba97SEli Cohen break; 228e126ba97SEli Cohen 229e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 230b125a54bSEli Cohen size += sizeof(struct mlx5_wqe_ctrl_seg) + 231e126ba97SEli Cohen sizeof(struct mlx5_wqe_umr_ctrl_seg) + 232e126ba97SEli Cohen sizeof(struct mlx5_mkey_seg); 233e126ba97SEli Cohen break; 234e126ba97SEli Cohen 235e126ba97SEli Cohen default: 236e126ba97SEli Cohen return -EINVAL; 237e126ba97SEli Cohen } 238e126ba97SEli Cohen 239e126ba97SEli Cohen return size; 240e126ba97SEli Cohen } 241e126ba97SEli Cohen 242e126ba97SEli Cohen static int calc_send_wqe(struct ib_qp_init_attr *attr) 243e126ba97SEli Cohen { 244e126ba97SEli Cohen int inl_size = 0; 245e126ba97SEli Cohen int size; 246e126ba97SEli Cohen 247e126ba97SEli Cohen size = sq_overhead(attr->qp_type); 248e126ba97SEli Cohen if (size < 0) 249e126ba97SEli Cohen return size; 250e126ba97SEli Cohen 251e126ba97SEli Cohen if (attr->cap.max_inline_data) { 252e126ba97SEli Cohen inl_size = size + sizeof(struct mlx5_wqe_inline_seg) + 253e126ba97SEli Cohen attr->cap.max_inline_data; 254e126ba97SEli Cohen } 255e126ba97SEli Cohen 256e126ba97SEli Cohen size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg); 257e126ba97SEli Cohen 258e126ba97SEli Cohen return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB); 259e126ba97SEli Cohen } 260e126ba97SEli Cohen 261e126ba97SEli Cohen static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, 262e126ba97SEli Cohen struct mlx5_ib_qp *qp) 263e126ba97SEli Cohen { 264e126ba97SEli Cohen int wqe_size; 265e126ba97SEli Cohen int wq_size; 266e126ba97SEli Cohen 267e126ba97SEli Cohen if (!attr->cap.max_send_wr) 268e126ba97SEli Cohen return 0; 269e126ba97SEli Cohen 270e126ba97SEli Cohen wqe_size = calc_send_wqe(attr); 271e126ba97SEli Cohen mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size); 272e126ba97SEli Cohen if (wqe_size < 0) 273e126ba97SEli Cohen return wqe_size; 274e126ba97SEli Cohen 275e126ba97SEli Cohen if (wqe_size > dev->mdev.caps.max_sq_desc_sz) { 276b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", 277b125a54bSEli Cohen wqe_size, dev->mdev.caps.max_sq_desc_sz); 278e126ba97SEli Cohen return -EINVAL; 279e126ba97SEli Cohen } 280e126ba97SEli Cohen 281e126ba97SEli Cohen qp->max_inline_data = wqe_size - sq_overhead(attr->qp_type) - 282e126ba97SEli Cohen sizeof(struct mlx5_wqe_inline_seg); 283e126ba97SEli Cohen attr->cap.max_inline_data = qp->max_inline_data; 284e126ba97SEli Cohen 285e126ba97SEli Cohen wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); 286e126ba97SEli Cohen qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; 287b125a54bSEli Cohen if (qp->sq.wqe_cnt > dev->mdev.caps.max_wqes) { 288b125a54bSEli Cohen mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", 289b125a54bSEli Cohen qp->sq.wqe_cnt, dev->mdev.caps.max_wqes); 290b125a54bSEli Cohen return -ENOMEM; 291b125a54bSEli Cohen } 292e126ba97SEli Cohen qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); 293e126ba97SEli Cohen qp->sq.max_gs = attr->cap.max_send_sge; 294b125a54bSEli Cohen qp->sq.max_post = wq_size / wqe_size; 295b125a54bSEli Cohen attr->cap.max_send_wr = qp->sq.max_post; 296e126ba97SEli Cohen 297e126ba97SEli Cohen return wq_size; 298e126ba97SEli Cohen } 299e126ba97SEli Cohen 300e126ba97SEli Cohen static int set_user_buf_size(struct mlx5_ib_dev *dev, 301e126ba97SEli Cohen struct mlx5_ib_qp *qp, 302e126ba97SEli Cohen struct mlx5_ib_create_qp *ucmd) 303e126ba97SEli Cohen { 304e126ba97SEli Cohen int desc_sz = 1 << qp->sq.wqe_shift; 305e126ba97SEli Cohen 306e126ba97SEli Cohen if (desc_sz > dev->mdev.caps.max_sq_desc_sz) { 307e126ba97SEli Cohen mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n", 308e126ba97SEli Cohen desc_sz, dev->mdev.caps.max_sq_desc_sz); 309e126ba97SEli Cohen return -EINVAL; 310e126ba97SEli Cohen } 311e126ba97SEli Cohen 312e126ba97SEli Cohen if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) { 313e126ba97SEli Cohen mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n", 314e126ba97SEli Cohen ucmd->sq_wqe_count, ucmd->sq_wqe_count); 315e126ba97SEli Cohen return -EINVAL; 316e126ba97SEli Cohen } 317e126ba97SEli Cohen 318e126ba97SEli Cohen qp->sq.wqe_cnt = ucmd->sq_wqe_count; 319e126ba97SEli Cohen 320e126ba97SEli Cohen if (qp->sq.wqe_cnt > dev->mdev.caps.max_wqes) { 321e126ba97SEli Cohen mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n", 322e126ba97SEli Cohen qp->sq.wqe_cnt, dev->mdev.caps.max_wqes); 323e126ba97SEli Cohen return -EINVAL; 324e126ba97SEli Cohen } 325e126ba97SEli Cohen 326e126ba97SEli Cohen qp->buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) + 327e126ba97SEli Cohen (qp->sq.wqe_cnt << 6); 328e126ba97SEli Cohen 329e126ba97SEli Cohen return 0; 330e126ba97SEli Cohen } 331e126ba97SEli Cohen 332e126ba97SEli Cohen static int qp_has_rq(struct ib_qp_init_attr *attr) 333e126ba97SEli Cohen { 334e126ba97SEli Cohen if (attr->qp_type == IB_QPT_XRC_INI || 335e126ba97SEli Cohen attr->qp_type == IB_QPT_XRC_TGT || attr->srq || 336e126ba97SEli Cohen attr->qp_type == MLX5_IB_QPT_REG_UMR || 337e126ba97SEli Cohen !attr->cap.max_recv_wr) 338e126ba97SEli Cohen return 0; 339e126ba97SEli Cohen 340e126ba97SEli Cohen return 1; 341e126ba97SEli Cohen } 342e126ba97SEli Cohen 343e126ba97SEli Cohen static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari) 344e126ba97SEli Cohen { 345e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 346e126ba97SEli Cohen int start_uuar; 347e126ba97SEli Cohen int i; 348e126ba97SEli Cohen 349e126ba97SEli Cohen start_uuar = nuuars - uuari->num_low_latency_uuars; 350e126ba97SEli Cohen for (i = start_uuar; i < nuuars; i++) { 351e126ba97SEli Cohen if (!test_bit(i, uuari->bitmap)) { 352e126ba97SEli Cohen set_bit(i, uuari->bitmap); 353e126ba97SEli Cohen uuari->count[i]++; 354e126ba97SEli Cohen return i; 355e126ba97SEli Cohen } 356e126ba97SEli Cohen } 357e126ba97SEli Cohen 358e126ba97SEli Cohen return -ENOMEM; 359e126ba97SEli Cohen } 360e126ba97SEli Cohen 361e126ba97SEli Cohen static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari) 362e126ba97SEli Cohen { 363e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 364e126ba97SEli Cohen int minidx = 1; 365e126ba97SEli Cohen int uuarn; 366e126ba97SEli Cohen int end; 367e126ba97SEli Cohen int i; 368e126ba97SEli Cohen 369e126ba97SEli Cohen end = nuuars - uuari->num_low_latency_uuars; 370e126ba97SEli Cohen 371e126ba97SEli Cohen for (i = 1; i < end; i++) { 372e126ba97SEli Cohen uuarn = i & 3; 373e126ba97SEli Cohen if (uuarn == 2 || uuarn == 3) 374e126ba97SEli Cohen continue; 375e126ba97SEli Cohen 376e126ba97SEli Cohen if (uuari->count[i] < uuari->count[minidx]) 377e126ba97SEli Cohen minidx = i; 378e126ba97SEli Cohen } 379e126ba97SEli Cohen 380e126ba97SEli Cohen uuari->count[minidx]++; 381e126ba97SEli Cohen return minidx; 382e126ba97SEli Cohen } 383e126ba97SEli Cohen 384e126ba97SEli Cohen static int alloc_uuar(struct mlx5_uuar_info *uuari, 385e126ba97SEli Cohen enum mlx5_ib_latency_class lat) 386e126ba97SEli Cohen { 387e126ba97SEli Cohen int uuarn = -EINVAL; 388e126ba97SEli Cohen 389e126ba97SEli Cohen mutex_lock(&uuari->lock); 390e126ba97SEli Cohen switch (lat) { 391e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_LOW: 392e126ba97SEli Cohen uuarn = 0; 393e126ba97SEli Cohen uuari->count[uuarn]++; 394e126ba97SEli Cohen break; 395e126ba97SEli Cohen 396e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_MEDIUM: 397e126ba97SEli Cohen uuarn = alloc_med_class_uuar(uuari); 398e126ba97SEli Cohen break; 399e126ba97SEli Cohen 400e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_HIGH: 401e126ba97SEli Cohen uuarn = alloc_high_class_uuar(uuari); 402e126ba97SEli Cohen break; 403e126ba97SEli Cohen 404e126ba97SEli Cohen case MLX5_IB_LATENCY_CLASS_FAST_PATH: 405e126ba97SEli Cohen uuarn = 2; 406e126ba97SEli Cohen break; 407e126ba97SEli Cohen } 408e126ba97SEli Cohen mutex_unlock(&uuari->lock); 409e126ba97SEli Cohen 410e126ba97SEli Cohen return uuarn; 411e126ba97SEli Cohen } 412e126ba97SEli Cohen 413e126ba97SEli Cohen static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 414e126ba97SEli Cohen { 415e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 416e126ba97SEli Cohen --uuari->count[uuarn]; 417e126ba97SEli Cohen } 418e126ba97SEli Cohen 419e126ba97SEli Cohen static void free_high_class_uuar(struct mlx5_uuar_info *uuari, int uuarn) 420e126ba97SEli Cohen { 421e126ba97SEli Cohen clear_bit(uuarn, uuari->bitmap); 422e126ba97SEli Cohen --uuari->count[uuarn]; 423e126ba97SEli Cohen } 424e126ba97SEli Cohen 425e126ba97SEli Cohen static void free_uuar(struct mlx5_uuar_info *uuari, int uuarn) 426e126ba97SEli Cohen { 427e126ba97SEli Cohen int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE; 428e126ba97SEli Cohen int high_uuar = nuuars - uuari->num_low_latency_uuars; 429e126ba97SEli Cohen 430e126ba97SEli Cohen mutex_lock(&uuari->lock); 431e126ba97SEli Cohen if (uuarn == 0) { 432e126ba97SEli Cohen --uuari->count[uuarn]; 433e126ba97SEli Cohen goto out; 434e126ba97SEli Cohen } 435e126ba97SEli Cohen 436e126ba97SEli Cohen if (uuarn < high_uuar) { 437e126ba97SEli Cohen free_med_class_uuar(uuari, uuarn); 438e126ba97SEli Cohen goto out; 439e126ba97SEli Cohen } 440e126ba97SEli Cohen 441e126ba97SEli Cohen free_high_class_uuar(uuari, uuarn); 442e126ba97SEli Cohen 443e126ba97SEli Cohen out: 444e126ba97SEli Cohen mutex_unlock(&uuari->lock); 445e126ba97SEli Cohen } 446e126ba97SEli Cohen 447e126ba97SEli Cohen static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state) 448e126ba97SEli Cohen { 449e126ba97SEli Cohen switch (state) { 450e126ba97SEli Cohen case IB_QPS_RESET: return MLX5_QP_STATE_RST; 451e126ba97SEli Cohen case IB_QPS_INIT: return MLX5_QP_STATE_INIT; 452e126ba97SEli Cohen case IB_QPS_RTR: return MLX5_QP_STATE_RTR; 453e126ba97SEli Cohen case IB_QPS_RTS: return MLX5_QP_STATE_RTS; 454e126ba97SEli Cohen case IB_QPS_SQD: return MLX5_QP_STATE_SQD; 455e126ba97SEli Cohen case IB_QPS_SQE: return MLX5_QP_STATE_SQER; 456e126ba97SEli Cohen case IB_QPS_ERR: return MLX5_QP_STATE_ERR; 457e126ba97SEli Cohen default: return -1; 458e126ba97SEli Cohen } 459e126ba97SEli Cohen } 460e126ba97SEli Cohen 461e126ba97SEli Cohen static int to_mlx5_st(enum ib_qp_type type) 462e126ba97SEli Cohen { 463e126ba97SEli Cohen switch (type) { 464e126ba97SEli Cohen case IB_QPT_RC: return MLX5_QP_ST_RC; 465e126ba97SEli Cohen case IB_QPT_UC: return MLX5_QP_ST_UC; 466e126ba97SEli Cohen case IB_QPT_UD: return MLX5_QP_ST_UD; 467e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR; 468e126ba97SEli Cohen case IB_QPT_XRC_INI: 469e126ba97SEli Cohen case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC; 470e126ba97SEli Cohen case IB_QPT_SMI: return MLX5_QP_ST_QP0; 471e126ba97SEli Cohen case IB_QPT_GSI: return MLX5_QP_ST_QP1; 472e126ba97SEli Cohen case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6; 473e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE; 474e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 475e126ba97SEli Cohen case IB_QPT_MAX: 476e126ba97SEli Cohen default: return -EINVAL; 477e126ba97SEli Cohen } 478e126ba97SEli Cohen } 479e126ba97SEli Cohen 480e126ba97SEli Cohen static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn) 481e126ba97SEli Cohen { 482e126ba97SEli Cohen return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index; 483e126ba97SEli Cohen } 484e126ba97SEli Cohen 485e126ba97SEli Cohen static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, 486e126ba97SEli Cohen struct mlx5_ib_qp *qp, struct ib_udata *udata, 487e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, 488e126ba97SEli Cohen struct mlx5_ib_create_qp_resp *resp, int *inlen) 489e126ba97SEli Cohen { 490e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 491e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 492e126ba97SEli Cohen int page_shift; 493e126ba97SEli Cohen int uar_index; 494e126ba97SEli Cohen int npages; 495e126ba97SEli Cohen u32 offset; 496e126ba97SEli Cohen int uuarn; 497e126ba97SEli Cohen int ncont; 498e126ba97SEli Cohen int err; 499e126ba97SEli Cohen 500e126ba97SEli Cohen err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 501e126ba97SEli Cohen if (err) { 502e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 503e126ba97SEli Cohen return err; 504e126ba97SEli Cohen } 505e126ba97SEli Cohen 506e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 507e126ba97SEli Cohen /* 508e126ba97SEli Cohen * TBD: should come from the verbs when we have the API 509e126ba97SEli Cohen */ 510e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH); 511e126ba97SEli Cohen if (uuarn < 0) { 512e126ba97SEli Cohen mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n"); 513e126ba97SEli Cohen mlx5_ib_dbg(dev, "reverting to high latency\n"); 514e126ba97SEli Cohen uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW); 515e126ba97SEli Cohen if (uuarn < 0) { 516e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuar allocation failed\n"); 517e126ba97SEli Cohen return uuarn; 518e126ba97SEli Cohen } 519e126ba97SEli Cohen } 520e126ba97SEli Cohen 521e126ba97SEli Cohen uar_index = uuarn_to_uar_index(&context->uuari, uuarn); 522e126ba97SEli Cohen mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index); 523e126ba97SEli Cohen 524e126ba97SEli Cohen err = set_user_buf_size(dev, qp, &ucmd); 525e126ba97SEli Cohen if (err) 526e126ba97SEli Cohen goto err_uuar; 527e126ba97SEli Cohen 528e126ba97SEli Cohen qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, 529e126ba97SEli Cohen qp->buf_size, 0, 0); 530e126ba97SEli Cohen if (IS_ERR(qp->umem)) { 531e126ba97SEli Cohen mlx5_ib_dbg(dev, "umem_get failed\n"); 532e126ba97SEli Cohen err = PTR_ERR(qp->umem); 533e126ba97SEli Cohen goto err_uuar; 534e126ba97SEli Cohen } 535e126ba97SEli Cohen 536e126ba97SEli Cohen mlx5_ib_cont_pages(qp->umem, ucmd.buf_addr, &npages, &page_shift, 537e126ba97SEli Cohen &ncont, NULL); 538e126ba97SEli Cohen err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift, &offset); 539e126ba97SEli Cohen if (err) { 540e126ba97SEli Cohen mlx5_ib_warn(dev, "bad offset\n"); 541e126ba97SEli Cohen goto err_umem; 542e126ba97SEli Cohen } 543e126ba97SEli Cohen mlx5_ib_dbg(dev, "addr 0x%llx, size %d, npages %d, page_shift %d, ncont %d, offset %d\n", 544e126ba97SEli Cohen ucmd.buf_addr, qp->buf_size, npages, page_shift, ncont, offset); 545e126ba97SEli Cohen 546e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * ncont; 547e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 548e126ba97SEli Cohen if (!*in) { 549e126ba97SEli Cohen err = -ENOMEM; 550e126ba97SEli Cohen goto err_umem; 551e126ba97SEli Cohen } 552e126ba97SEli Cohen mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); 553e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = 554e126ba97SEli Cohen cpu_to_be32((page_shift - PAGE_SHIFT) << 24); 555e126ba97SEli Cohen (*in)->ctx.params2 = cpu_to_be32(offset << 6); 556e126ba97SEli Cohen 557e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 558e126ba97SEli Cohen resp->uuar_index = uuarn; 559e126ba97SEli Cohen qp->uuarn = uuarn; 560e126ba97SEli Cohen 561e126ba97SEli Cohen err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db); 562e126ba97SEli Cohen if (err) { 563e126ba97SEli Cohen mlx5_ib_dbg(dev, "map failed\n"); 564e126ba97SEli Cohen goto err_free; 565e126ba97SEli Cohen } 566e126ba97SEli Cohen 567e126ba97SEli Cohen err = ib_copy_to_udata(udata, resp, sizeof(*resp)); 568e126ba97SEli Cohen if (err) { 569e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 570e126ba97SEli Cohen goto err_unmap; 571e126ba97SEli Cohen } 572e126ba97SEli Cohen qp->create_type = MLX5_QP_USER; 573e126ba97SEli Cohen 574e126ba97SEli Cohen return 0; 575e126ba97SEli Cohen 576e126ba97SEli Cohen err_unmap: 577e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 578e126ba97SEli Cohen 579e126ba97SEli Cohen err_free: 580e126ba97SEli Cohen mlx5_vfree(*in); 581e126ba97SEli Cohen 582e126ba97SEli Cohen err_umem: 583e126ba97SEli Cohen ib_umem_release(qp->umem); 584e126ba97SEli Cohen 585e126ba97SEli Cohen err_uuar: 586e126ba97SEli Cohen free_uuar(&context->uuari, uuarn); 587e126ba97SEli Cohen return err; 588e126ba97SEli Cohen } 589e126ba97SEli Cohen 590e126ba97SEli Cohen static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp) 591e126ba97SEli Cohen { 592e126ba97SEli Cohen struct mlx5_ib_ucontext *context; 593e126ba97SEli Cohen 594e126ba97SEli Cohen context = to_mucontext(pd->uobject->context); 595e126ba97SEli Cohen mlx5_ib_db_unmap_user(context, &qp->db); 596e126ba97SEli Cohen ib_umem_release(qp->umem); 597e126ba97SEli Cohen free_uuar(&context->uuari, qp->uuarn); 598e126ba97SEli Cohen } 599e126ba97SEli Cohen 600e126ba97SEli Cohen static int create_kernel_qp(struct mlx5_ib_dev *dev, 601e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 602e126ba97SEli Cohen struct mlx5_ib_qp *qp, 603e126ba97SEli Cohen struct mlx5_create_qp_mbox_in **in, int *inlen) 604e126ba97SEli Cohen { 605e126ba97SEli Cohen enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW; 606e126ba97SEli Cohen struct mlx5_uuar_info *uuari; 607e126ba97SEli Cohen int uar_index; 608e126ba97SEli Cohen int uuarn; 609e126ba97SEli Cohen int err; 610e126ba97SEli Cohen 611e126ba97SEli Cohen uuari = &dev->mdev.priv.uuari; 612e126ba97SEli Cohen if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) 613e126ba97SEli Cohen qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK; 614e126ba97SEli Cohen 615e126ba97SEli Cohen if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR) 616e126ba97SEli Cohen lc = MLX5_IB_LATENCY_CLASS_FAST_PATH; 617e126ba97SEli Cohen 618e126ba97SEli Cohen uuarn = alloc_uuar(uuari, lc); 619e126ba97SEli Cohen if (uuarn < 0) { 620e126ba97SEli Cohen mlx5_ib_dbg(dev, "\n"); 621e126ba97SEli Cohen return -ENOMEM; 622e126ba97SEli Cohen } 623e126ba97SEli Cohen 624e126ba97SEli Cohen qp->bf = &uuari->bfs[uuarn]; 625e126ba97SEli Cohen uar_index = qp->bf->uar->index; 626e126ba97SEli Cohen 627e126ba97SEli Cohen err = calc_sq_size(dev, init_attr, qp); 628e126ba97SEli Cohen if (err < 0) { 629e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 630e126ba97SEli Cohen goto err_uuar; 631e126ba97SEli Cohen } 632e126ba97SEli Cohen 633e126ba97SEli Cohen qp->rq.offset = 0; 634e126ba97SEli Cohen qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; 635e126ba97SEli Cohen qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); 636e126ba97SEli Cohen 637e126ba97SEli Cohen err = mlx5_buf_alloc(&dev->mdev, qp->buf_size, PAGE_SIZE * 2, &qp->buf); 638e126ba97SEli Cohen if (err) { 639e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 640e126ba97SEli Cohen goto err_uuar; 641e126ba97SEli Cohen } 642e126ba97SEli Cohen 643e126ba97SEli Cohen qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt); 644e126ba97SEli Cohen *inlen = sizeof(**in) + sizeof(*(*in)->pas) * qp->buf.npages; 645e126ba97SEli Cohen *in = mlx5_vzalloc(*inlen); 646e126ba97SEli Cohen if (!*in) { 647e126ba97SEli Cohen err = -ENOMEM; 648e126ba97SEli Cohen goto err_buf; 649e126ba97SEli Cohen } 650e126ba97SEli Cohen (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); 651e126ba97SEli Cohen (*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - PAGE_SHIFT) << 24); 652e126ba97SEli Cohen /* Set "fast registration enabled" for all kernel QPs */ 653e126ba97SEli Cohen (*in)->ctx.params1 |= cpu_to_be32(1 << 11); 654e126ba97SEli Cohen (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); 655e126ba97SEli Cohen 656e126ba97SEli Cohen mlx5_fill_page_array(&qp->buf, (*in)->pas); 657e126ba97SEli Cohen 658e126ba97SEli Cohen err = mlx5_db_alloc(&dev->mdev, &qp->db); 659e126ba97SEli Cohen if (err) { 660e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 661e126ba97SEli Cohen goto err_free; 662e126ba97SEli Cohen } 663e126ba97SEli Cohen 664e126ba97SEli Cohen qp->db.db[0] = 0; 665e126ba97SEli Cohen qp->db.db[1] = 0; 666e126ba97SEli Cohen 667e126ba97SEli Cohen qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL); 668e126ba97SEli Cohen qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL); 669e126ba97SEli Cohen qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL); 670e126ba97SEli Cohen qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL); 671e126ba97SEli Cohen qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL); 672e126ba97SEli Cohen 673e126ba97SEli Cohen if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid || 674e126ba97SEli Cohen !qp->sq.w_list || !qp->sq.wqe_head) { 675e126ba97SEli Cohen err = -ENOMEM; 676e126ba97SEli Cohen goto err_wrid; 677e126ba97SEli Cohen } 678e126ba97SEli Cohen qp->create_type = MLX5_QP_KERNEL; 679e126ba97SEli Cohen 680e126ba97SEli Cohen return 0; 681e126ba97SEli Cohen 682e126ba97SEli Cohen err_wrid: 683e126ba97SEli Cohen mlx5_db_free(&dev->mdev, &qp->db); 684e126ba97SEli Cohen kfree(qp->sq.wqe_head); 685e126ba97SEli Cohen kfree(qp->sq.w_list); 686e126ba97SEli Cohen kfree(qp->sq.wrid); 687e126ba97SEli Cohen kfree(qp->sq.wr_data); 688e126ba97SEli Cohen kfree(qp->rq.wrid); 689e126ba97SEli Cohen 690e126ba97SEli Cohen err_free: 691e126ba97SEli Cohen mlx5_vfree(*in); 692e126ba97SEli Cohen 693e126ba97SEli Cohen err_buf: 694e126ba97SEli Cohen mlx5_buf_free(&dev->mdev, &qp->buf); 695e126ba97SEli Cohen 696e126ba97SEli Cohen err_uuar: 697e126ba97SEli Cohen free_uuar(&dev->mdev.priv.uuari, uuarn); 698e126ba97SEli Cohen return err; 699e126ba97SEli Cohen } 700e126ba97SEli Cohen 701e126ba97SEli Cohen static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 702e126ba97SEli Cohen { 703e126ba97SEli Cohen mlx5_db_free(&dev->mdev, &qp->db); 704e126ba97SEli Cohen kfree(qp->sq.wqe_head); 705e126ba97SEli Cohen kfree(qp->sq.w_list); 706e126ba97SEli Cohen kfree(qp->sq.wrid); 707e126ba97SEli Cohen kfree(qp->sq.wr_data); 708e126ba97SEli Cohen kfree(qp->rq.wrid); 709e126ba97SEli Cohen mlx5_buf_free(&dev->mdev, &qp->buf); 710e126ba97SEli Cohen free_uuar(&dev->mdev.priv.uuari, qp->bf->uuarn); 711e126ba97SEli Cohen } 712e126ba97SEli Cohen 713e126ba97SEli Cohen static __be32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr) 714e126ba97SEli Cohen { 715e126ba97SEli Cohen if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) || 716e126ba97SEli Cohen (attr->qp_type == IB_QPT_XRC_INI)) 717e126ba97SEli Cohen return cpu_to_be32(MLX5_SRQ_RQ); 718e126ba97SEli Cohen else if (!qp->has_rq) 719e126ba97SEli Cohen return cpu_to_be32(MLX5_ZERO_LEN_RQ); 720e126ba97SEli Cohen else 721e126ba97SEli Cohen return cpu_to_be32(MLX5_NON_ZERO_RQ); 722e126ba97SEli Cohen } 723e126ba97SEli Cohen 724e126ba97SEli Cohen static int is_connected(enum ib_qp_type qp_type) 725e126ba97SEli Cohen { 726e126ba97SEli Cohen if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC) 727e126ba97SEli Cohen return 1; 728e126ba97SEli Cohen 729e126ba97SEli Cohen return 0; 730e126ba97SEli Cohen } 731e126ba97SEli Cohen 732e126ba97SEli Cohen static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, 733e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 734e126ba97SEli Cohen struct ib_udata *udata, struct mlx5_ib_qp *qp) 735e126ba97SEli Cohen { 736e126ba97SEli Cohen struct mlx5_ib_resources *devr = &dev->devr; 737e126ba97SEli Cohen struct mlx5_ib_create_qp_resp resp; 738e126ba97SEli Cohen struct mlx5_create_qp_mbox_in *in; 739e126ba97SEli Cohen struct mlx5_ib_create_qp ucmd; 740e126ba97SEli Cohen int inlen = sizeof(*in); 741e126ba97SEli Cohen int err; 742e126ba97SEli Cohen 743e126ba97SEli Cohen mutex_init(&qp->mutex); 744e126ba97SEli Cohen spin_lock_init(&qp->sq.lock); 745e126ba97SEli Cohen spin_lock_init(&qp->rq.lock); 746e126ba97SEli Cohen 747e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) 748e126ba97SEli Cohen qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE; 749e126ba97SEli Cohen 750e126ba97SEli Cohen if (pd && pd->uobject) { 751e126ba97SEli Cohen if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { 752e126ba97SEli Cohen mlx5_ib_dbg(dev, "copy failed\n"); 753e126ba97SEli Cohen return -EFAULT; 754e126ba97SEli Cohen } 755e126ba97SEli Cohen 756e126ba97SEli Cohen qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); 757e126ba97SEli Cohen qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); 758e126ba97SEli Cohen } else { 759e126ba97SEli Cohen qp->wq_sig = !!wq_signature; 760e126ba97SEli Cohen } 761e126ba97SEli Cohen 762e126ba97SEli Cohen qp->has_rq = qp_has_rq(init_attr); 763e126ba97SEli Cohen err = set_rq_size(dev, &init_attr->cap, qp->has_rq, 764e126ba97SEli Cohen qp, (pd && pd->uobject) ? &ucmd : NULL); 765e126ba97SEli Cohen if (err) { 766e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 767e126ba97SEli Cohen return err; 768e126ba97SEli Cohen } 769e126ba97SEli Cohen 770e126ba97SEli Cohen if (pd) { 771e126ba97SEli Cohen if (pd->uobject) { 772e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count); 773e126ba97SEli Cohen if (ucmd.rq_wqe_shift != qp->rq.wqe_shift || 774e126ba97SEli Cohen ucmd.rq_wqe_count != qp->rq.wqe_cnt) { 775e126ba97SEli Cohen mlx5_ib_dbg(dev, "invalid rq params\n"); 776e126ba97SEli Cohen return -EINVAL; 777e126ba97SEli Cohen } 778e126ba97SEli Cohen if (ucmd.sq_wqe_count > dev->mdev.caps.max_wqes) { 779e126ba97SEli Cohen mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n", 780e126ba97SEli Cohen ucmd.sq_wqe_count, dev->mdev.caps.max_wqes); 781e126ba97SEli Cohen return -EINVAL; 782e126ba97SEli Cohen } 783e126ba97SEli Cohen err = create_user_qp(dev, pd, qp, udata, &in, &resp, &inlen); 784e126ba97SEli Cohen if (err) 785e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 786e126ba97SEli Cohen } else { 787e126ba97SEli Cohen err = create_kernel_qp(dev, init_attr, qp, &in, &inlen); 788e126ba97SEli Cohen if (err) 789e126ba97SEli Cohen mlx5_ib_dbg(dev, "err %d\n", err); 790e126ba97SEli Cohen else 791e126ba97SEli Cohen qp->pa_lkey = to_mpd(pd)->pa_lkey; 792e126ba97SEli Cohen } 793e126ba97SEli Cohen 794e126ba97SEli Cohen if (err) 795e126ba97SEli Cohen return err; 796e126ba97SEli Cohen } else { 797e126ba97SEli Cohen in = mlx5_vzalloc(sizeof(*in)); 798e126ba97SEli Cohen if (!in) 799e126ba97SEli Cohen return -ENOMEM; 800e126ba97SEli Cohen 801e126ba97SEli Cohen qp->create_type = MLX5_QP_EMPTY; 802e126ba97SEli Cohen } 803e126ba97SEli Cohen 804e126ba97SEli Cohen if (is_sqp(init_attr->qp_type)) 805e126ba97SEli Cohen qp->port = init_attr->port_num; 806e126ba97SEli Cohen 807e126ba97SEli Cohen in->ctx.flags = cpu_to_be32(to_mlx5_st(init_attr->qp_type) << 16 | 808e126ba97SEli Cohen MLX5_QP_PM_MIGRATED << 11); 809e126ba97SEli Cohen 810e126ba97SEli Cohen if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR) 811e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(to_mpd(pd ? pd : devr->p0)->pdn); 812e126ba97SEli Cohen else 813e126ba97SEli Cohen in->ctx.flags_pd = cpu_to_be32(MLX5_QP_LAT_SENSITIVE); 814e126ba97SEli Cohen 815e126ba97SEli Cohen if (qp->wq_sig) 816e126ba97SEli Cohen in->ctx.flags_pd |= cpu_to_be32(MLX5_QP_ENABLE_SIG); 817e126ba97SEli Cohen 818e126ba97SEli Cohen if (qp->scat_cqe && is_connected(init_attr->qp_type)) { 819e126ba97SEli Cohen int rcqe_sz; 820e126ba97SEli Cohen int scqe_sz; 821e126ba97SEli Cohen 822e126ba97SEli Cohen rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq); 823e126ba97SEli Cohen scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq); 824e126ba97SEli Cohen 825e126ba97SEli Cohen if (rcqe_sz == 128) 826e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA64_CQE; 827e126ba97SEli Cohen else 828e126ba97SEli Cohen in->ctx.cs_res = MLX5_RES_SCAT_DATA32_CQE; 829e126ba97SEli Cohen 830e126ba97SEli Cohen if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) { 831e126ba97SEli Cohen if (scqe_sz == 128) 832e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA64_CQE; 833e126ba97SEli Cohen else 834e126ba97SEli Cohen in->ctx.cs_req = MLX5_REQ_SCAT_DATA32_CQE; 835e126ba97SEli Cohen } 836e126ba97SEli Cohen } 837e126ba97SEli Cohen 838e126ba97SEli Cohen if (qp->rq.wqe_cnt) { 839e126ba97SEli Cohen in->ctx.rq_size_stride = (qp->rq.wqe_shift - 4); 840e126ba97SEli Cohen in->ctx.rq_size_stride |= ilog2(qp->rq.wqe_cnt) << 3; 841e126ba97SEli Cohen } 842e126ba97SEli Cohen 843e126ba97SEli Cohen in->ctx.rq_type_srqn = get_rx_type(qp, init_attr); 844e126ba97SEli Cohen 845e126ba97SEli Cohen if (qp->sq.wqe_cnt) 846e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(ilog2(qp->sq.wqe_cnt) << 11); 847e126ba97SEli Cohen else 848e126ba97SEli Cohen in->ctx.sq_crq_size |= cpu_to_be16(0x8000); 849e126ba97SEli Cohen 850e126ba97SEli Cohen /* Set default resources */ 851e126ba97SEli Cohen switch (init_attr->qp_type) { 852e126ba97SEli Cohen case IB_QPT_XRC_TGT: 853e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 854e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 855e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 856e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(init_attr->xrcd)->xrcdn); 857e126ba97SEli Cohen break; 858e126ba97SEli Cohen case IB_QPT_XRC_INI: 859e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(devr->c0)->mcq.cqn); 860e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 861e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 862e126ba97SEli Cohen break; 863e126ba97SEli Cohen default: 864e126ba97SEli Cohen if (init_attr->srq) { 865e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x0)->xrcdn); 866e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(init_attr->srq)->msrq.srqn); 867e126ba97SEli Cohen } else { 868e126ba97SEli Cohen in->ctx.xrcd = cpu_to_be32(to_mxrcd(devr->x1)->xrcdn); 869e126ba97SEli Cohen in->ctx.rq_type_srqn |= cpu_to_be32(to_msrq(devr->s0)->msrq.srqn); 870e126ba97SEli Cohen } 871e126ba97SEli Cohen } 872e126ba97SEli Cohen 873e126ba97SEli Cohen if (init_attr->send_cq) 874e126ba97SEli Cohen in->ctx.cqn_send = cpu_to_be32(to_mcq(init_attr->send_cq)->mcq.cqn); 875e126ba97SEli Cohen 876e126ba97SEli Cohen if (init_attr->recv_cq) 877e126ba97SEli Cohen in->ctx.cqn_recv = cpu_to_be32(to_mcq(init_attr->recv_cq)->mcq.cqn); 878e126ba97SEli Cohen 879e126ba97SEli Cohen in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); 880e126ba97SEli Cohen 881e126ba97SEli Cohen err = mlx5_core_create_qp(&dev->mdev, &qp->mqp, in, inlen); 882e126ba97SEli Cohen if (err) { 883e126ba97SEli Cohen mlx5_ib_dbg(dev, "create qp failed\n"); 884e126ba97SEli Cohen goto err_create; 885e126ba97SEli Cohen } 886e126ba97SEli Cohen 887e126ba97SEli Cohen mlx5_vfree(in); 888e126ba97SEli Cohen /* Hardware wants QPN written in big-endian order (after 889e126ba97SEli Cohen * shifting) for send doorbell. Precompute this value to save 890e126ba97SEli Cohen * a little bit when posting sends. 891e126ba97SEli Cohen */ 892e126ba97SEli Cohen qp->doorbell_qpn = swab32(qp->mqp.qpn << 8); 893e126ba97SEli Cohen 894e126ba97SEli Cohen qp->mqp.event = mlx5_ib_qp_event; 895e126ba97SEli Cohen 896e126ba97SEli Cohen return 0; 897e126ba97SEli Cohen 898e126ba97SEli Cohen err_create: 899e126ba97SEli Cohen if (qp->create_type == MLX5_QP_USER) 900e126ba97SEli Cohen destroy_qp_user(pd, qp); 901e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_KERNEL) 902e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 903e126ba97SEli Cohen 904e126ba97SEli Cohen mlx5_vfree(in); 905e126ba97SEli Cohen return err; 906e126ba97SEli Cohen } 907e126ba97SEli Cohen 908e126ba97SEli Cohen static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 909e126ba97SEli Cohen __acquires(&send_cq->lock) __acquires(&recv_cq->lock) 910e126ba97SEli Cohen { 911e126ba97SEli Cohen if (send_cq) { 912e126ba97SEli Cohen if (recv_cq) { 913e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 914e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 915e126ba97SEli Cohen spin_lock_nested(&recv_cq->lock, 916e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 917e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 918e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 919e126ba97SEli Cohen __acquire(&recv_cq->lock); 920e126ba97SEli Cohen } else { 921e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 922e126ba97SEli Cohen spin_lock_nested(&send_cq->lock, 923e126ba97SEli Cohen SINGLE_DEPTH_NESTING); 924e126ba97SEli Cohen } 925e126ba97SEli Cohen } else { 926e126ba97SEli Cohen spin_lock_irq(&send_cq->lock); 927e126ba97SEli Cohen } 928e126ba97SEli Cohen } else if (recv_cq) { 929e126ba97SEli Cohen spin_lock_irq(&recv_cq->lock); 930e126ba97SEli Cohen } 931e126ba97SEli Cohen } 932e126ba97SEli Cohen 933e126ba97SEli Cohen static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) 934e126ba97SEli Cohen __releases(&send_cq->lock) __releases(&recv_cq->lock) 935e126ba97SEli Cohen { 936e126ba97SEli Cohen if (send_cq) { 937e126ba97SEli Cohen if (recv_cq) { 938e126ba97SEli Cohen if (send_cq->mcq.cqn < recv_cq->mcq.cqn) { 939e126ba97SEli Cohen spin_unlock(&recv_cq->lock); 940e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 941e126ba97SEli Cohen } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) { 942e126ba97SEli Cohen __release(&recv_cq->lock); 943e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 944e126ba97SEli Cohen } else { 945e126ba97SEli Cohen spin_unlock(&send_cq->lock); 946e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 947e126ba97SEli Cohen } 948e126ba97SEli Cohen } else { 949e126ba97SEli Cohen spin_unlock_irq(&send_cq->lock); 950e126ba97SEli Cohen } 951e126ba97SEli Cohen } else if (recv_cq) { 952e126ba97SEli Cohen spin_unlock_irq(&recv_cq->lock); 953e126ba97SEli Cohen } 954e126ba97SEli Cohen } 955e126ba97SEli Cohen 956e126ba97SEli Cohen static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp) 957e126ba97SEli Cohen { 958e126ba97SEli Cohen return to_mpd(qp->ibqp.pd); 959e126ba97SEli Cohen } 960e126ba97SEli Cohen 961e126ba97SEli Cohen static void get_cqs(struct mlx5_ib_qp *qp, 962e126ba97SEli Cohen struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq) 963e126ba97SEli Cohen { 964e126ba97SEli Cohen switch (qp->ibqp.qp_type) { 965e126ba97SEli Cohen case IB_QPT_XRC_TGT: 966e126ba97SEli Cohen *send_cq = NULL; 967e126ba97SEli Cohen *recv_cq = NULL; 968e126ba97SEli Cohen break; 969e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 970e126ba97SEli Cohen case IB_QPT_XRC_INI: 971e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 972e126ba97SEli Cohen *recv_cq = NULL; 973e126ba97SEli Cohen break; 974e126ba97SEli Cohen 975e126ba97SEli Cohen case IB_QPT_SMI: 976e126ba97SEli Cohen case IB_QPT_GSI: 977e126ba97SEli Cohen case IB_QPT_RC: 978e126ba97SEli Cohen case IB_QPT_UC: 979e126ba97SEli Cohen case IB_QPT_UD: 980e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 981e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 982e126ba97SEli Cohen *send_cq = to_mcq(qp->ibqp.send_cq); 983e126ba97SEli Cohen *recv_cq = to_mcq(qp->ibqp.recv_cq); 984e126ba97SEli Cohen break; 985e126ba97SEli Cohen 986e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 987e126ba97SEli Cohen case IB_QPT_MAX: 988e126ba97SEli Cohen default: 989e126ba97SEli Cohen *send_cq = NULL; 990e126ba97SEli Cohen *recv_cq = NULL; 991e126ba97SEli Cohen break; 992e126ba97SEli Cohen } 993e126ba97SEli Cohen } 994e126ba97SEli Cohen 995e126ba97SEli Cohen static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp) 996e126ba97SEli Cohen { 997e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 998e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 999e126ba97SEli Cohen int err; 1000e126ba97SEli Cohen 1001e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1002e126ba97SEli Cohen if (!in) 1003e126ba97SEli Cohen return; 1004e126ba97SEli Cohen if (qp->state != IB_QPS_RESET) 1005e126ba97SEli Cohen if (mlx5_core_qp_modify(&dev->mdev, to_mlx5_state(qp->state), 1006e126ba97SEli Cohen MLX5_QP_STATE_RST, in, sizeof(*in), &qp->mqp)) 1007e126ba97SEli Cohen mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n", 1008e126ba97SEli Cohen qp->mqp.qpn); 1009e126ba97SEli Cohen 1010e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1011e126ba97SEli Cohen 1012e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) { 1013e126ba97SEli Cohen mlx5_ib_lock_cqs(send_cq, recv_cq); 1014e126ba97SEli Cohen __mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1015e126ba97SEli Cohen qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 1016e126ba97SEli Cohen if (send_cq != recv_cq) 1017e126ba97SEli Cohen __mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1018e126ba97SEli Cohen mlx5_ib_unlock_cqs(send_cq, recv_cq); 1019e126ba97SEli Cohen } 1020e126ba97SEli Cohen 1021e126ba97SEli Cohen err = mlx5_core_destroy_qp(&dev->mdev, &qp->mqp); 1022e126ba97SEli Cohen if (err) 1023e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n", qp->mqp.qpn); 1024e126ba97SEli Cohen kfree(in); 1025e126ba97SEli Cohen 1026e126ba97SEli Cohen 1027e126ba97SEli Cohen if (qp->create_type == MLX5_QP_KERNEL) 1028e126ba97SEli Cohen destroy_qp_kernel(dev, qp); 1029e126ba97SEli Cohen else if (qp->create_type == MLX5_QP_USER) 1030e126ba97SEli Cohen destroy_qp_user(&get_pd(qp)->ibpd, qp); 1031e126ba97SEli Cohen } 1032e126ba97SEli Cohen 1033e126ba97SEli Cohen static const char *ib_qp_type_str(enum ib_qp_type type) 1034e126ba97SEli Cohen { 1035e126ba97SEli Cohen switch (type) { 1036e126ba97SEli Cohen case IB_QPT_SMI: 1037e126ba97SEli Cohen return "IB_QPT_SMI"; 1038e126ba97SEli Cohen case IB_QPT_GSI: 1039e126ba97SEli Cohen return "IB_QPT_GSI"; 1040e126ba97SEli Cohen case IB_QPT_RC: 1041e126ba97SEli Cohen return "IB_QPT_RC"; 1042e126ba97SEli Cohen case IB_QPT_UC: 1043e126ba97SEli Cohen return "IB_QPT_UC"; 1044e126ba97SEli Cohen case IB_QPT_UD: 1045e126ba97SEli Cohen return "IB_QPT_UD"; 1046e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1047e126ba97SEli Cohen return "IB_QPT_RAW_IPV6"; 1048e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1049e126ba97SEli Cohen return "IB_QPT_RAW_ETHERTYPE"; 1050e126ba97SEli Cohen case IB_QPT_XRC_INI: 1051e126ba97SEli Cohen return "IB_QPT_XRC_INI"; 1052e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1053e126ba97SEli Cohen return "IB_QPT_XRC_TGT"; 1054e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1055e126ba97SEli Cohen return "IB_QPT_RAW_PACKET"; 1056e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1057e126ba97SEli Cohen return "MLX5_IB_QPT_REG_UMR"; 1058e126ba97SEli Cohen case IB_QPT_MAX: 1059e126ba97SEli Cohen default: 1060e126ba97SEli Cohen return "Invalid QP type"; 1061e126ba97SEli Cohen } 1062e126ba97SEli Cohen } 1063e126ba97SEli Cohen 1064e126ba97SEli Cohen struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1065e126ba97SEli Cohen struct ib_qp_init_attr *init_attr, 1066e126ba97SEli Cohen struct ib_udata *udata) 1067e126ba97SEli Cohen { 1068e126ba97SEli Cohen struct mlx5_ib_dev *dev; 1069e126ba97SEli Cohen struct mlx5_ib_qp *qp; 1070e126ba97SEli Cohen u16 xrcdn = 0; 1071e126ba97SEli Cohen int err; 1072e126ba97SEli Cohen 1073e126ba97SEli Cohen if (pd) { 1074e126ba97SEli Cohen dev = to_mdev(pd->device); 1075e126ba97SEli Cohen } else { 1076e126ba97SEli Cohen /* being cautious here */ 1077e126ba97SEli Cohen if (init_attr->qp_type != IB_QPT_XRC_TGT && 1078e126ba97SEli Cohen init_attr->qp_type != MLX5_IB_QPT_REG_UMR) { 1079e126ba97SEli Cohen pr_warn("%s: no PD for transport %s\n", __func__, 1080e126ba97SEli Cohen ib_qp_type_str(init_attr->qp_type)); 1081e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1082e126ba97SEli Cohen } 1083e126ba97SEli Cohen dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device); 1084e126ba97SEli Cohen } 1085e126ba97SEli Cohen 1086e126ba97SEli Cohen switch (init_attr->qp_type) { 1087e126ba97SEli Cohen case IB_QPT_XRC_TGT: 1088e126ba97SEli Cohen case IB_QPT_XRC_INI: 1089e126ba97SEli Cohen if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_XRC)) { 1090e126ba97SEli Cohen mlx5_ib_dbg(dev, "XRC not supported\n"); 1091e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 1092e126ba97SEli Cohen } 1093e126ba97SEli Cohen init_attr->recv_cq = NULL; 1094e126ba97SEli Cohen if (init_attr->qp_type == IB_QPT_XRC_TGT) { 1095e126ba97SEli Cohen xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn; 1096e126ba97SEli Cohen init_attr->send_cq = NULL; 1097e126ba97SEli Cohen } 1098e126ba97SEli Cohen 1099e126ba97SEli Cohen /* fall through */ 1100e126ba97SEli Cohen case IB_QPT_RC: 1101e126ba97SEli Cohen case IB_QPT_UC: 1102e126ba97SEli Cohen case IB_QPT_UD: 1103e126ba97SEli Cohen case IB_QPT_SMI: 1104e126ba97SEli Cohen case IB_QPT_GSI: 1105e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 1106e126ba97SEli Cohen qp = kzalloc(sizeof(*qp), GFP_KERNEL); 1107e126ba97SEli Cohen if (!qp) 1108e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 1109e126ba97SEli Cohen 1110e126ba97SEli Cohen err = create_qp_common(dev, pd, init_attr, udata, qp); 1111e126ba97SEli Cohen if (err) { 1112e126ba97SEli Cohen mlx5_ib_dbg(dev, "create_qp_common failed\n"); 1113e126ba97SEli Cohen kfree(qp); 1114e126ba97SEli Cohen return ERR_PTR(err); 1115e126ba97SEli Cohen } 1116e126ba97SEli Cohen 1117e126ba97SEli Cohen if (is_qp0(init_attr->qp_type)) 1118e126ba97SEli Cohen qp->ibqp.qp_num = 0; 1119e126ba97SEli Cohen else if (is_qp1(init_attr->qp_type)) 1120e126ba97SEli Cohen qp->ibqp.qp_num = 1; 1121e126ba97SEli Cohen else 1122e126ba97SEli Cohen qp->ibqp.qp_num = qp->mqp.qpn; 1123e126ba97SEli Cohen 1124e126ba97SEli Cohen mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", 1125e126ba97SEli Cohen qp->ibqp.qp_num, qp->mqp.qpn, to_mcq(init_attr->recv_cq)->mcq.cqn, 1126e126ba97SEli Cohen to_mcq(init_attr->send_cq)->mcq.cqn); 1127e126ba97SEli Cohen 1128e126ba97SEli Cohen qp->xrcdn = xrcdn; 1129e126ba97SEli Cohen 1130e126ba97SEli Cohen break; 1131e126ba97SEli Cohen 1132e126ba97SEli Cohen case IB_QPT_RAW_IPV6: 1133e126ba97SEli Cohen case IB_QPT_RAW_ETHERTYPE: 1134e126ba97SEli Cohen case IB_QPT_RAW_PACKET: 1135e126ba97SEli Cohen case IB_QPT_MAX: 1136e126ba97SEli Cohen default: 1137e126ba97SEli Cohen mlx5_ib_dbg(dev, "unsupported qp type %d\n", 1138e126ba97SEli Cohen init_attr->qp_type); 1139e126ba97SEli Cohen /* Don't support raw QPs */ 1140e126ba97SEli Cohen return ERR_PTR(-EINVAL); 1141e126ba97SEli Cohen } 1142e126ba97SEli Cohen 1143e126ba97SEli Cohen return &qp->ibqp; 1144e126ba97SEli Cohen } 1145e126ba97SEli Cohen 1146e126ba97SEli Cohen int mlx5_ib_destroy_qp(struct ib_qp *qp) 1147e126ba97SEli Cohen { 1148e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(qp->device); 1149e126ba97SEli Cohen struct mlx5_ib_qp *mqp = to_mqp(qp); 1150e126ba97SEli Cohen 1151e126ba97SEli Cohen destroy_qp_common(dev, mqp); 1152e126ba97SEli Cohen 1153e126ba97SEli Cohen kfree(mqp); 1154e126ba97SEli Cohen 1155e126ba97SEli Cohen return 0; 1156e126ba97SEli Cohen } 1157e126ba97SEli Cohen 1158e126ba97SEli Cohen static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr, 1159e126ba97SEli Cohen int attr_mask) 1160e126ba97SEli Cohen { 1161e126ba97SEli Cohen u32 hw_access_flags = 0; 1162e126ba97SEli Cohen u8 dest_rd_atomic; 1163e126ba97SEli Cohen u32 access_flags; 1164e126ba97SEli Cohen 1165e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1166e126ba97SEli Cohen dest_rd_atomic = attr->max_dest_rd_atomic; 1167e126ba97SEli Cohen else 1168e126ba97SEli Cohen dest_rd_atomic = qp->resp_depth; 1169e126ba97SEli Cohen 1170e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1171e126ba97SEli Cohen access_flags = attr->qp_access_flags; 1172e126ba97SEli Cohen else 1173e126ba97SEli Cohen access_flags = qp->atomic_rd_en; 1174e126ba97SEli Cohen 1175e126ba97SEli Cohen if (!dest_rd_atomic) 1176e126ba97SEli Cohen access_flags &= IB_ACCESS_REMOTE_WRITE; 1177e126ba97SEli Cohen 1178e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_READ) 1179e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RRE; 1180e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_ATOMIC) 1181e126ba97SEli Cohen hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX); 1182e126ba97SEli Cohen if (access_flags & IB_ACCESS_REMOTE_WRITE) 1183e126ba97SEli Cohen hw_access_flags |= MLX5_QP_BIT_RWE; 1184e126ba97SEli Cohen 1185e126ba97SEli Cohen return cpu_to_be32(hw_access_flags); 1186e126ba97SEli Cohen } 1187e126ba97SEli Cohen 1188e126ba97SEli Cohen enum { 1189e126ba97SEli Cohen MLX5_PATH_FLAG_FL = 1 << 0, 1190e126ba97SEli Cohen MLX5_PATH_FLAG_FREE_AR = 1 << 1, 1191e126ba97SEli Cohen MLX5_PATH_FLAG_COUNTER = 1 << 2, 1192e126ba97SEli Cohen }; 1193e126ba97SEli Cohen 1194e126ba97SEli Cohen static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) 1195e126ba97SEli Cohen { 1196e126ba97SEli Cohen if (rate == IB_RATE_PORT_CURRENT) { 1197e126ba97SEli Cohen return 0; 1198e126ba97SEli Cohen } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) { 1199e126ba97SEli Cohen return -EINVAL; 1200e126ba97SEli Cohen } else { 1201e126ba97SEli Cohen while (rate != IB_RATE_2_5_GBPS && 1202e126ba97SEli Cohen !(1 << (rate + MLX5_STAT_RATE_OFFSET) & 1203e126ba97SEli Cohen dev->mdev.caps.stat_rate_support)) 1204e126ba97SEli Cohen --rate; 1205e126ba97SEli Cohen } 1206e126ba97SEli Cohen 1207e126ba97SEli Cohen return rate + MLX5_STAT_RATE_OFFSET; 1208e126ba97SEli Cohen } 1209e126ba97SEli Cohen 1210e126ba97SEli Cohen static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah, 1211e126ba97SEli Cohen struct mlx5_qp_path *path, u8 port, int attr_mask, 1212e126ba97SEli Cohen u32 path_flags, const struct ib_qp_attr *attr) 1213e126ba97SEli Cohen { 1214e126ba97SEli Cohen int err; 1215e126ba97SEli Cohen 1216e126ba97SEli Cohen path->fl = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0; 1217e126ba97SEli Cohen path->free_ar = (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x80 : 0; 1218e126ba97SEli Cohen 1219e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1220e126ba97SEli Cohen path->pkey_index = attr->pkey_index; 1221e126ba97SEli Cohen 1222e126ba97SEli Cohen path->grh_mlid = ah->src_path_bits & 0x7f; 1223e126ba97SEli Cohen path->rlid = cpu_to_be16(ah->dlid); 1224e126ba97SEli Cohen 1225e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 1226e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 1227e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1228e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1229e126ba97SEli Cohen path->tclass_flowlabel = 1230e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1231e126ba97SEli Cohen (ah->grh.flow_label)); 1232e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1233e126ba97SEli Cohen } 1234e126ba97SEli Cohen 1235e126ba97SEli Cohen err = ib_rate_to_mlx5(dev, ah->static_rate); 1236e126ba97SEli Cohen if (err < 0) 1237e126ba97SEli Cohen return err; 1238e126ba97SEli Cohen path->static_rate = err; 1239e126ba97SEli Cohen path->port = port; 1240e126ba97SEli Cohen 1241e126ba97SEli Cohen if (ah->ah_flags & IB_AH_GRH) { 1242e126ba97SEli Cohen if (ah->grh.sgid_index >= dev->mdev.caps.port[port - 1].gid_table_len) { 1243e126ba97SEli Cohen pr_err(KERN_ERR "sgid_index (%u) too large. max is %d\n", 1244e126ba97SEli Cohen ah->grh.sgid_index, dev->mdev.caps.port[port - 1].gid_table_len); 1245e126ba97SEli Cohen return -EINVAL; 1246e126ba97SEli Cohen } 1247e126ba97SEli Cohen 1248e126ba97SEli Cohen path->grh_mlid |= 1 << 7; 1249e126ba97SEli Cohen path->mgid_index = ah->grh.sgid_index; 1250e126ba97SEli Cohen path->hop_limit = ah->grh.hop_limit; 1251e126ba97SEli Cohen path->tclass_flowlabel = 1252e126ba97SEli Cohen cpu_to_be32((ah->grh.traffic_class << 20) | 1253e126ba97SEli Cohen (ah->grh.flow_label)); 1254e126ba97SEli Cohen memcpy(path->rgid, ah->grh.dgid.raw, 16); 1255e126ba97SEli Cohen } 1256e126ba97SEli Cohen 1257e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1258e126ba97SEli Cohen path->ackto_lt = attr->timeout << 3; 1259e126ba97SEli Cohen 1260e126ba97SEli Cohen path->sl = ah->sl & 0xf; 1261e126ba97SEli Cohen 1262e126ba97SEli Cohen return 0; 1263e126ba97SEli Cohen } 1264e126ba97SEli Cohen 1265e126ba97SEli Cohen static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = { 1266e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1267e126ba97SEli Cohen [MLX5_QP_STATE_INIT] = { 1268e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1269e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1270e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1271e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1272e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1273e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1274e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX | 1275e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1276e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1277e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY | 1278e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT, 1279e126ba97SEli Cohen }, 1280e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1281e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1282e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1283e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1284e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1285e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1286e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1287e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1288e126ba97SEli Cohen MLX5_QP_OPTPAR_PKEY_INDEX, 1289e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX | 1290e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1291e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | 1292e126ba97SEli Cohen MLX5_QP_OPTPAR_Q_KEY, 1293e126ba97SEli Cohen }, 1294e126ba97SEli Cohen }, 1295e126ba97SEli Cohen [MLX5_QP_STATE_RTR] = { 1296e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1297e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1298e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | 1299e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1300e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1301e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE | 1302e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT, 1303e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | 1304e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1305e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1306e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1307e126ba97SEli Cohen }, 1308e126ba97SEli Cohen }, 1309e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1310e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1311e126ba97SEli Cohen [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE | 1312e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE | 1313e126ba97SEli Cohen MLX5_QP_OPTPAR_RWE | 1314e126ba97SEli Cohen MLX5_QP_OPTPAR_RNR_TIMEOUT | 1315e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1316e126ba97SEli Cohen [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | 1317e126ba97SEli Cohen MLX5_QP_OPTPAR_PM_STATE, 1318e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | 1319e126ba97SEli Cohen MLX5_QP_OPTPAR_SRQN | 1320e126ba97SEli Cohen MLX5_QP_OPTPAR_CQN_RCV, 1321e126ba97SEli Cohen }, 1322e126ba97SEli Cohen }, 1323e126ba97SEli Cohen [MLX5_QP_STATE_SQER] = { 1324e126ba97SEli Cohen [MLX5_QP_STATE_RTS] = { 1325e126ba97SEli Cohen [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, 1326e126ba97SEli Cohen [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, 1327e126ba97SEli Cohen }, 1328e126ba97SEli Cohen }, 1329e126ba97SEli Cohen }; 1330e126ba97SEli Cohen 1331e126ba97SEli Cohen static int ib_nr_to_mlx5_nr(int ib_mask) 1332e126ba97SEli Cohen { 1333e126ba97SEli Cohen switch (ib_mask) { 1334e126ba97SEli Cohen case IB_QP_STATE: 1335e126ba97SEli Cohen return 0; 1336e126ba97SEli Cohen case IB_QP_CUR_STATE: 1337e126ba97SEli Cohen return 0; 1338e126ba97SEli Cohen case IB_QP_EN_SQD_ASYNC_NOTIFY: 1339e126ba97SEli Cohen return 0; 1340e126ba97SEli Cohen case IB_QP_ACCESS_FLAGS: 1341e126ba97SEli Cohen return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE | 1342e126ba97SEli Cohen MLX5_QP_OPTPAR_RAE; 1343e126ba97SEli Cohen case IB_QP_PKEY_INDEX: 1344e126ba97SEli Cohen return MLX5_QP_OPTPAR_PKEY_INDEX; 1345e126ba97SEli Cohen case IB_QP_PORT: 1346e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRI_PORT; 1347e126ba97SEli Cohen case IB_QP_QKEY: 1348e126ba97SEli Cohen return MLX5_QP_OPTPAR_Q_KEY; 1349e126ba97SEli Cohen case IB_QP_AV: 1350e126ba97SEli Cohen return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH | 1351e126ba97SEli Cohen MLX5_QP_OPTPAR_PRI_PORT; 1352e126ba97SEli Cohen case IB_QP_PATH_MTU: 1353e126ba97SEli Cohen return 0; 1354e126ba97SEli Cohen case IB_QP_TIMEOUT: 1355e126ba97SEli Cohen return MLX5_QP_OPTPAR_ACK_TIMEOUT; 1356e126ba97SEli Cohen case IB_QP_RETRY_CNT: 1357e126ba97SEli Cohen return MLX5_QP_OPTPAR_RETRY_COUNT; 1358e126ba97SEli Cohen case IB_QP_RNR_RETRY: 1359e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_RETRY; 1360e126ba97SEli Cohen case IB_QP_RQ_PSN: 1361e126ba97SEli Cohen return 0; 1362e126ba97SEli Cohen case IB_QP_MAX_QP_RD_ATOMIC: 1363e126ba97SEli Cohen return MLX5_QP_OPTPAR_SRA_MAX; 1364e126ba97SEli Cohen case IB_QP_ALT_PATH: 1365e126ba97SEli Cohen return MLX5_QP_OPTPAR_ALT_ADDR_PATH; 1366e126ba97SEli Cohen case IB_QP_MIN_RNR_TIMER: 1367e126ba97SEli Cohen return MLX5_QP_OPTPAR_RNR_TIMEOUT; 1368e126ba97SEli Cohen case IB_QP_SQ_PSN: 1369e126ba97SEli Cohen return 0; 1370e126ba97SEli Cohen case IB_QP_MAX_DEST_RD_ATOMIC: 1371e126ba97SEli Cohen return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE | 1372e126ba97SEli Cohen MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE; 1373e126ba97SEli Cohen case IB_QP_PATH_MIG_STATE: 1374e126ba97SEli Cohen return MLX5_QP_OPTPAR_PM_STATE; 1375e126ba97SEli Cohen case IB_QP_CAP: 1376e126ba97SEli Cohen return 0; 1377e126ba97SEli Cohen case IB_QP_DEST_QPN: 1378e126ba97SEli Cohen return 0; 1379e126ba97SEli Cohen } 1380e126ba97SEli Cohen return 0; 1381e126ba97SEli Cohen } 1382e126ba97SEli Cohen 1383e126ba97SEli Cohen static int ib_mask_to_mlx5_opt(int ib_mask) 1384e126ba97SEli Cohen { 1385e126ba97SEli Cohen int result = 0; 1386e126ba97SEli Cohen int i; 1387e126ba97SEli Cohen 1388e126ba97SEli Cohen for (i = 0; i < 8 * sizeof(int); i++) { 1389e126ba97SEli Cohen if ((1 << i) & ib_mask) 1390e126ba97SEli Cohen result |= ib_nr_to_mlx5_nr(1 << i); 1391e126ba97SEli Cohen } 1392e126ba97SEli Cohen 1393e126ba97SEli Cohen return result; 1394e126ba97SEli Cohen } 1395e126ba97SEli Cohen 1396e126ba97SEli Cohen static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, 1397e126ba97SEli Cohen const struct ib_qp_attr *attr, int attr_mask, 1398e126ba97SEli Cohen enum ib_qp_state cur_state, enum ib_qp_state new_state) 1399e126ba97SEli Cohen { 1400e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1401e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1402e126ba97SEli Cohen struct mlx5_ib_cq *send_cq, *recv_cq; 1403e126ba97SEli Cohen struct mlx5_qp_context *context; 1404e126ba97SEli Cohen struct mlx5_modify_qp_mbox_in *in; 1405e126ba97SEli Cohen struct mlx5_ib_pd *pd; 1406e126ba97SEli Cohen enum mlx5_qp_state mlx5_cur, mlx5_new; 1407e126ba97SEli Cohen enum mlx5_qp_optpar optpar; 1408e126ba97SEli Cohen int sqd_event; 1409e126ba97SEli Cohen int mlx5_st; 1410e126ba97SEli Cohen int err; 1411e126ba97SEli Cohen 1412e126ba97SEli Cohen in = kzalloc(sizeof(*in), GFP_KERNEL); 1413e126ba97SEli Cohen if (!in) 1414e126ba97SEli Cohen return -ENOMEM; 1415e126ba97SEli Cohen 1416e126ba97SEli Cohen context = &in->ctx; 1417e126ba97SEli Cohen err = to_mlx5_st(ibqp->qp_type); 1418e126ba97SEli Cohen if (err < 0) 1419e126ba97SEli Cohen goto out; 1420e126ba97SEli Cohen 1421e126ba97SEli Cohen context->flags = cpu_to_be32(err << 16); 1422e126ba97SEli Cohen 1423e126ba97SEli Cohen if (!(attr_mask & IB_QP_PATH_MIG_STATE)) { 1424e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1425e126ba97SEli Cohen } else { 1426e126ba97SEli Cohen switch (attr->path_mig_state) { 1427e126ba97SEli Cohen case IB_MIG_MIGRATED: 1428e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11); 1429e126ba97SEli Cohen break; 1430e126ba97SEli Cohen case IB_MIG_REARM: 1431e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11); 1432e126ba97SEli Cohen break; 1433e126ba97SEli Cohen case IB_MIG_ARMED: 1434e126ba97SEli Cohen context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11); 1435e126ba97SEli Cohen break; 1436e126ba97SEli Cohen } 1437e126ba97SEli Cohen } 1438e126ba97SEli Cohen 1439e126ba97SEli Cohen if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { 1440e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_256 << 5) | 8; 1441e126ba97SEli Cohen } else if (ibqp->qp_type == IB_QPT_UD || 1442e126ba97SEli Cohen ibqp->qp_type == MLX5_IB_QPT_REG_UMR) { 1443e126ba97SEli Cohen context->mtu_msgmax = (IB_MTU_4096 << 5) | 12; 1444e126ba97SEli Cohen } else if (attr_mask & IB_QP_PATH_MTU) { 1445e126ba97SEli Cohen if (attr->path_mtu < IB_MTU_256 || 1446e126ba97SEli Cohen attr->path_mtu > IB_MTU_4096) { 1447e126ba97SEli Cohen mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu); 1448e126ba97SEli Cohen err = -EINVAL; 1449e126ba97SEli Cohen goto out; 1450e126ba97SEli Cohen } 1451e126ba97SEli Cohen context->mtu_msgmax = (attr->path_mtu << 5) | dev->mdev.caps.log_max_msg; 1452e126ba97SEli Cohen } 1453e126ba97SEli Cohen 1454e126ba97SEli Cohen if (attr_mask & IB_QP_DEST_QPN) 1455e126ba97SEli Cohen context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num); 1456e126ba97SEli Cohen 1457e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) 1458e126ba97SEli Cohen context->pri_path.pkey_index = attr->pkey_index; 1459e126ba97SEli Cohen 1460e126ba97SEli Cohen /* todo implement counter_index functionality */ 1461e126ba97SEli Cohen 1462e126ba97SEli Cohen if (is_sqp(ibqp->qp_type)) 1463e126ba97SEli Cohen context->pri_path.port = qp->port; 1464e126ba97SEli Cohen 1465e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1466e126ba97SEli Cohen context->pri_path.port = attr->port_num; 1467e126ba97SEli Cohen 1468e126ba97SEli Cohen if (attr_mask & IB_QP_AV) { 1469e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->ah_attr, &context->pri_path, 1470e126ba97SEli Cohen attr_mask & IB_QP_PORT ? attr->port_num : qp->port, 1471e126ba97SEli Cohen attr_mask, 0, attr); 1472e126ba97SEli Cohen if (err) 1473e126ba97SEli Cohen goto out; 1474e126ba97SEli Cohen } 1475e126ba97SEli Cohen 1476e126ba97SEli Cohen if (attr_mask & IB_QP_TIMEOUT) 1477e126ba97SEli Cohen context->pri_path.ackto_lt |= attr->timeout << 3; 1478e126ba97SEli Cohen 1479e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) { 1480e126ba97SEli Cohen err = mlx5_set_path(dev, &attr->alt_ah_attr, &context->alt_path, 1481e126ba97SEli Cohen attr->alt_port_num, attr_mask, 0, attr); 1482e126ba97SEli Cohen if (err) 1483e126ba97SEli Cohen goto out; 1484e126ba97SEli Cohen } 1485e126ba97SEli Cohen 1486e126ba97SEli Cohen pd = get_pd(qp); 1487e126ba97SEli Cohen get_cqs(qp, &send_cq, &recv_cq); 1488e126ba97SEli Cohen 1489e126ba97SEli Cohen context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn); 1490e126ba97SEli Cohen context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0; 1491e126ba97SEli Cohen context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0; 1492e126ba97SEli Cohen context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28); 1493e126ba97SEli Cohen 1494e126ba97SEli Cohen if (attr_mask & IB_QP_RNR_RETRY) 1495e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->rnr_retry << 13); 1496e126ba97SEli Cohen 1497e126ba97SEli Cohen if (attr_mask & IB_QP_RETRY_CNT) 1498e126ba97SEli Cohen context->params1 |= cpu_to_be32(attr->retry_cnt << 16); 1499e126ba97SEli Cohen 1500e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 1501e126ba97SEli Cohen if (attr->max_rd_atomic) 1502e126ba97SEli Cohen context->params1 |= 1503e126ba97SEli Cohen cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21); 1504e126ba97SEli Cohen } 1505e126ba97SEli Cohen 1506e126ba97SEli Cohen if (attr_mask & IB_QP_SQ_PSN) 1507e126ba97SEli Cohen context->next_send_psn = cpu_to_be32(attr->sq_psn); 1508e126ba97SEli Cohen 1509e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 1510e126ba97SEli Cohen if (attr->max_dest_rd_atomic) 1511e126ba97SEli Cohen context->params2 |= 1512e126ba97SEli Cohen cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21); 1513e126ba97SEli Cohen } 1514e126ba97SEli Cohen 1515e126ba97SEli Cohen if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) 1516e126ba97SEli Cohen context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask); 1517e126ba97SEli Cohen 1518e126ba97SEli Cohen if (attr_mask & IB_QP_MIN_RNR_TIMER) 1519e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24); 1520e126ba97SEli Cohen 1521e126ba97SEli Cohen if (attr_mask & IB_QP_RQ_PSN) 1522e126ba97SEli Cohen context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn); 1523e126ba97SEli Cohen 1524e126ba97SEli Cohen if (attr_mask & IB_QP_QKEY) 1525e126ba97SEli Cohen context->qkey = cpu_to_be32(attr->qkey); 1526e126ba97SEli Cohen 1527e126ba97SEli Cohen if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1528e126ba97SEli Cohen context->db_rec_addr = cpu_to_be64(qp->db.dma); 1529e126ba97SEli Cohen 1530e126ba97SEli Cohen if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD && 1531e126ba97SEli Cohen attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify) 1532e126ba97SEli Cohen sqd_event = 1; 1533e126ba97SEli Cohen else 1534e126ba97SEli Cohen sqd_event = 0; 1535e126ba97SEli Cohen 1536e126ba97SEli Cohen if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) 1537e126ba97SEli Cohen context->sq_crq_size |= cpu_to_be16(1 << 4); 1538e126ba97SEli Cohen 1539e126ba97SEli Cohen 1540e126ba97SEli Cohen mlx5_cur = to_mlx5_state(cur_state); 1541e126ba97SEli Cohen mlx5_new = to_mlx5_state(new_state); 1542e126ba97SEli Cohen mlx5_st = to_mlx5_st(ibqp->qp_type); 1543e126ba97SEli Cohen if (mlx5_cur < 0 || mlx5_new < 0 || mlx5_st < 0) 1544e126ba97SEli Cohen goto out; 1545e126ba97SEli Cohen 1546e126ba97SEli Cohen optpar = ib_mask_to_mlx5_opt(attr_mask); 1547e126ba97SEli Cohen optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st]; 1548e126ba97SEli Cohen in->optparam = cpu_to_be32(optpar); 1549e126ba97SEli Cohen err = mlx5_core_qp_modify(&dev->mdev, to_mlx5_state(cur_state), 1550e126ba97SEli Cohen to_mlx5_state(new_state), in, sqd_event, 1551e126ba97SEli Cohen &qp->mqp); 1552e126ba97SEli Cohen if (err) 1553e126ba97SEli Cohen goto out; 1554e126ba97SEli Cohen 1555e126ba97SEli Cohen qp->state = new_state; 1556e126ba97SEli Cohen 1557e126ba97SEli Cohen if (attr_mask & IB_QP_ACCESS_FLAGS) 1558e126ba97SEli Cohen qp->atomic_rd_en = attr->qp_access_flags; 1559e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) 1560e126ba97SEli Cohen qp->resp_depth = attr->max_dest_rd_atomic; 1561e126ba97SEli Cohen if (attr_mask & IB_QP_PORT) 1562e126ba97SEli Cohen qp->port = attr->port_num; 1563e126ba97SEli Cohen if (attr_mask & IB_QP_ALT_PATH) 1564e126ba97SEli Cohen qp->alt_port = attr->alt_port_num; 1565e126ba97SEli Cohen 1566e126ba97SEli Cohen /* 1567e126ba97SEli Cohen * If we moved a kernel QP to RESET, clean up all old CQ 1568e126ba97SEli Cohen * entries and reinitialize the QP. 1569e126ba97SEli Cohen */ 1570e126ba97SEli Cohen if (new_state == IB_QPS_RESET && !ibqp->uobject) { 1571e126ba97SEli Cohen mlx5_ib_cq_clean(recv_cq, qp->mqp.qpn, 1572e126ba97SEli Cohen ibqp->srq ? to_msrq(ibqp->srq) : NULL); 1573e126ba97SEli Cohen if (send_cq != recv_cq) 1574e126ba97SEli Cohen mlx5_ib_cq_clean(send_cq, qp->mqp.qpn, NULL); 1575e126ba97SEli Cohen 1576e126ba97SEli Cohen qp->rq.head = 0; 1577e126ba97SEli Cohen qp->rq.tail = 0; 1578e126ba97SEli Cohen qp->sq.head = 0; 1579e126ba97SEli Cohen qp->sq.tail = 0; 1580e126ba97SEli Cohen qp->sq.cur_post = 0; 1581e126ba97SEli Cohen qp->sq.last_poll = 0; 1582e126ba97SEli Cohen qp->db.db[MLX5_RCV_DBR] = 0; 1583e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = 0; 1584e126ba97SEli Cohen } 1585e126ba97SEli Cohen 1586e126ba97SEli Cohen out: 1587e126ba97SEli Cohen kfree(in); 1588e126ba97SEli Cohen return err; 1589e126ba97SEli Cohen } 1590e126ba97SEli Cohen 1591e126ba97SEli Cohen int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1592e126ba97SEli Cohen int attr_mask, struct ib_udata *udata) 1593e126ba97SEli Cohen { 1594e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1595e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1596e126ba97SEli Cohen enum ib_qp_state cur_state, new_state; 1597e126ba97SEli Cohen int err = -EINVAL; 1598e126ba97SEli Cohen int port; 1599e126ba97SEli Cohen 1600e126ba97SEli Cohen mutex_lock(&qp->mutex); 1601e126ba97SEli Cohen 1602e126ba97SEli Cohen cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state; 1603e126ba97SEli Cohen new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state; 1604e126ba97SEli Cohen 1605e126ba97SEli Cohen if (ibqp->qp_type != MLX5_IB_QPT_REG_UMR && 1606e126ba97SEli Cohen !ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask)) 1607e126ba97SEli Cohen goto out; 1608e126ba97SEli Cohen 1609e126ba97SEli Cohen if ((attr_mask & IB_QP_PORT) && 1610e126ba97SEli Cohen (attr->port_num == 0 || attr->port_num > dev->mdev.caps.num_ports)) 1611e126ba97SEli Cohen goto out; 1612e126ba97SEli Cohen 1613e126ba97SEli Cohen if (attr_mask & IB_QP_PKEY_INDEX) { 1614e126ba97SEli Cohen port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port; 1615e126ba97SEli Cohen if (attr->pkey_index >= dev->mdev.caps.port[port - 1].pkey_table_len) 1616e126ba97SEli Cohen goto out; 1617e126ba97SEli Cohen } 1618e126ba97SEli Cohen 1619e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && 1620e126ba97SEli Cohen attr->max_rd_atomic > dev->mdev.caps.max_ra_res_qp) 1621e126ba97SEli Cohen goto out; 1622e126ba97SEli Cohen 1623e126ba97SEli Cohen if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && 1624e126ba97SEli Cohen attr->max_dest_rd_atomic > dev->mdev.caps.max_ra_req_qp) 1625e126ba97SEli Cohen goto out; 1626e126ba97SEli Cohen 1627e126ba97SEli Cohen if (cur_state == new_state && cur_state == IB_QPS_RESET) { 1628e126ba97SEli Cohen err = 0; 1629e126ba97SEli Cohen goto out; 1630e126ba97SEli Cohen } 1631e126ba97SEli Cohen 1632e126ba97SEli Cohen err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state); 1633e126ba97SEli Cohen 1634e126ba97SEli Cohen out: 1635e126ba97SEli Cohen mutex_unlock(&qp->mutex); 1636e126ba97SEli Cohen return err; 1637e126ba97SEli Cohen } 1638e126ba97SEli Cohen 1639e126ba97SEli Cohen static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq) 1640e126ba97SEli Cohen { 1641e126ba97SEli Cohen struct mlx5_ib_cq *cq; 1642e126ba97SEli Cohen unsigned cur; 1643e126ba97SEli Cohen 1644e126ba97SEli Cohen cur = wq->head - wq->tail; 1645e126ba97SEli Cohen if (likely(cur + nreq < wq->max_post)) 1646e126ba97SEli Cohen return 0; 1647e126ba97SEli Cohen 1648e126ba97SEli Cohen cq = to_mcq(ib_cq); 1649e126ba97SEli Cohen spin_lock(&cq->lock); 1650e126ba97SEli Cohen cur = wq->head - wq->tail; 1651e126ba97SEli Cohen spin_unlock(&cq->lock); 1652e126ba97SEli Cohen 1653e126ba97SEli Cohen return cur + nreq >= wq->max_post; 1654e126ba97SEli Cohen } 1655e126ba97SEli Cohen 1656e126ba97SEli Cohen static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, 1657e126ba97SEli Cohen u64 remote_addr, u32 rkey) 1658e126ba97SEli Cohen { 1659e126ba97SEli Cohen rseg->raddr = cpu_to_be64(remote_addr); 1660e126ba97SEli Cohen rseg->rkey = cpu_to_be32(rkey); 1661e126ba97SEli Cohen rseg->reserved = 0; 1662e126ba97SEli Cohen } 1663e126ba97SEli Cohen 1664e126ba97SEli Cohen static void set_atomic_seg(struct mlx5_wqe_atomic_seg *aseg, struct ib_send_wr *wr) 1665e126ba97SEli Cohen { 1666e126ba97SEli Cohen if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { 1667e126ba97SEli Cohen aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); 1668e126ba97SEli Cohen aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); 1669e126ba97SEli Cohen } else if (wr->opcode == IB_WR_MASKED_ATOMIC_FETCH_AND_ADD) { 1670e126ba97SEli Cohen aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); 1671e126ba97SEli Cohen aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add_mask); 1672e126ba97SEli Cohen } else { 1673e126ba97SEli Cohen aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); 1674e126ba97SEli Cohen aseg->compare = 0; 1675e126ba97SEli Cohen } 1676e126ba97SEli Cohen } 1677e126ba97SEli Cohen 1678e126ba97SEli Cohen static void set_masked_atomic_seg(struct mlx5_wqe_masked_atomic_seg *aseg, 1679e126ba97SEli Cohen struct ib_send_wr *wr) 1680e126ba97SEli Cohen { 1681e126ba97SEli Cohen aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); 1682e126ba97SEli Cohen aseg->swap_add_mask = cpu_to_be64(wr->wr.atomic.swap_mask); 1683e126ba97SEli Cohen aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); 1684e126ba97SEli Cohen aseg->compare_mask = cpu_to_be64(wr->wr.atomic.compare_add_mask); 1685e126ba97SEli Cohen } 1686e126ba97SEli Cohen 1687e126ba97SEli Cohen static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, 1688e126ba97SEli Cohen struct ib_send_wr *wr) 1689e126ba97SEli Cohen { 1690e126ba97SEli Cohen memcpy(&dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof(struct mlx5_av)); 1691e126ba97SEli Cohen dseg->av.dqp_dct = cpu_to_be32(wr->wr.ud.remote_qpn | MLX5_EXTENDED_UD_AV); 1692e126ba97SEli Cohen dseg->av.key.qkey.qkey = cpu_to_be32(wr->wr.ud.remote_qkey); 1693e126ba97SEli Cohen } 1694e126ba97SEli Cohen 1695e126ba97SEli Cohen static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg) 1696e126ba97SEli Cohen { 1697e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(sg->length); 1698e126ba97SEli Cohen dseg->lkey = cpu_to_be32(sg->lkey); 1699e126ba97SEli Cohen dseg->addr = cpu_to_be64(sg->addr); 1700e126ba97SEli Cohen } 1701e126ba97SEli Cohen 1702e126ba97SEli Cohen static __be16 get_klm_octo(int npages) 1703e126ba97SEli Cohen { 1704e126ba97SEli Cohen return cpu_to_be16(ALIGN(npages, 8) / 2); 1705e126ba97SEli Cohen } 1706e126ba97SEli Cohen 1707e126ba97SEli Cohen static __be64 frwr_mkey_mask(void) 1708e126ba97SEli Cohen { 1709e126ba97SEli Cohen u64 result; 1710e126ba97SEli Cohen 1711e126ba97SEli Cohen result = MLX5_MKEY_MASK_LEN | 1712e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1713e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1714e126ba97SEli Cohen MLX5_MKEY_MASK_EN_RINVAL | 1715e126ba97SEli Cohen MLX5_MKEY_MASK_KEY | 1716e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1717e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1718e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1719e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1720e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1721e126ba97SEli Cohen MLX5_MKEY_MASK_SMALL_FENCE | 1722e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1723e126ba97SEli Cohen 1724e126ba97SEli Cohen return cpu_to_be64(result); 1725e126ba97SEli Cohen } 1726e126ba97SEli Cohen 1727e126ba97SEli Cohen static void set_frwr_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1728e126ba97SEli Cohen struct ib_send_wr *wr, int li) 1729e126ba97SEli Cohen { 1730e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1731e126ba97SEli Cohen 1732e126ba97SEli Cohen if (li) { 1733e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); 1734e126ba97SEli Cohen umr->flags = 1 << 7; 1735e126ba97SEli Cohen return; 1736e126ba97SEli Cohen } 1737e126ba97SEli Cohen 1738e126ba97SEli Cohen umr->flags = (1 << 5); /* fail if not free */ 1739e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(wr->wr.fast_reg.page_list_len); 1740e126ba97SEli Cohen umr->mkey_mask = frwr_mkey_mask(); 1741e126ba97SEli Cohen } 1742e126ba97SEli Cohen 1743e126ba97SEli Cohen static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, 1744e126ba97SEli Cohen struct ib_send_wr *wr) 1745e126ba97SEli Cohen { 1746e126ba97SEli Cohen struct umr_wr *umrwr = (struct umr_wr *)&wr->wr.fast_reg; 1747e126ba97SEli Cohen u64 mask; 1748e126ba97SEli Cohen 1749e126ba97SEli Cohen memset(umr, 0, sizeof(*umr)); 1750e126ba97SEli Cohen 1751e126ba97SEli Cohen if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) { 1752e126ba97SEli Cohen umr->flags = 1 << 5; /* fail if not free */ 1753e126ba97SEli Cohen umr->klm_octowords = get_klm_octo(umrwr->npages); 1754e126ba97SEli Cohen mask = MLX5_MKEY_MASK_LEN | 1755e126ba97SEli Cohen MLX5_MKEY_MASK_PAGE_SIZE | 1756e126ba97SEli Cohen MLX5_MKEY_MASK_START_ADDR | 1757e126ba97SEli Cohen MLX5_MKEY_MASK_PD | 1758e126ba97SEli Cohen MLX5_MKEY_MASK_LR | 1759e126ba97SEli Cohen MLX5_MKEY_MASK_LW | 1760e126ba97SEli Cohen MLX5_MKEY_MASK_RR | 1761e126ba97SEli Cohen MLX5_MKEY_MASK_RW | 1762e126ba97SEli Cohen MLX5_MKEY_MASK_A | 1763e126ba97SEli Cohen MLX5_MKEY_MASK_FREE; 1764e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(mask); 1765e126ba97SEli Cohen } else { 1766e126ba97SEli Cohen umr->flags = 2 << 5; /* fail if free */ 1767e126ba97SEli Cohen mask = MLX5_MKEY_MASK_FREE; 1768e126ba97SEli Cohen umr->mkey_mask = cpu_to_be64(mask); 1769e126ba97SEli Cohen } 1770e126ba97SEli Cohen 1771e126ba97SEli Cohen if (!wr->num_sge) 1772e126ba97SEli Cohen umr->flags |= (1 << 7); /* inline */ 1773e126ba97SEli Cohen } 1774e126ba97SEli Cohen 1775e126ba97SEli Cohen static u8 get_umr_flags(int acc) 1776e126ba97SEli Cohen { 1777e126ba97SEli Cohen return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 1778e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 1779e126ba97SEli Cohen (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 1780e126ba97SEli Cohen (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 1781e126ba97SEli Cohen MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN | MLX5_ACCESS_MODE_MTT; 1782e126ba97SEli Cohen } 1783e126ba97SEli Cohen 1784e126ba97SEli Cohen static void set_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr, 1785e126ba97SEli Cohen int li, int *writ) 1786e126ba97SEli Cohen { 1787e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 1788e126ba97SEli Cohen if (li) { 1789e126ba97SEli Cohen seg->status = 1 << 6; 1790e126ba97SEli Cohen return; 1791e126ba97SEli Cohen } 1792e126ba97SEli Cohen 1793e126ba97SEli Cohen seg->flags = get_umr_flags(wr->wr.fast_reg.access_flags); 1794e126ba97SEli Cohen *writ = seg->flags & (MLX5_PERM_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE); 1795e126ba97SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32((wr->wr.fast_reg.rkey & 0xff) | 0xffffff00); 1796e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL); 1797e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 1798e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 1799e126ba97SEli Cohen seg->xlt_oct_size = cpu_to_be32((wr->wr.fast_reg.page_list_len + 1) / 2); 1800e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 1801e126ba97SEli Cohen } 1802e126ba97SEli Cohen 1803e126ba97SEli Cohen static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr) 1804e126ba97SEli Cohen { 1805e126ba97SEli Cohen memset(seg, 0, sizeof(*seg)); 1806e126ba97SEli Cohen if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) { 1807e126ba97SEli Cohen seg->status = 1 << 6; 1808e126ba97SEli Cohen return; 1809e126ba97SEli Cohen } 1810e126ba97SEli Cohen 1811e126ba97SEli Cohen seg->flags = convert_access(wr->wr.fast_reg.access_flags); 1812e126ba97SEli Cohen seg->flags_pd = cpu_to_be32(to_mpd((struct ib_pd *)wr->wr.fast_reg.page_list)->pdn); 1813e126ba97SEli Cohen seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); 1814e126ba97SEli Cohen seg->len = cpu_to_be64(wr->wr.fast_reg.length); 1815e126ba97SEli Cohen seg->log2_page_size = wr->wr.fast_reg.page_shift; 1816e126ba97SEli Cohen seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); 1817e126ba97SEli Cohen } 1818e126ba97SEli Cohen 1819e126ba97SEli Cohen static void set_frwr_pages(struct mlx5_wqe_data_seg *dseg, 1820e126ba97SEli Cohen struct ib_send_wr *wr, 1821e126ba97SEli Cohen struct mlx5_core_dev *mdev, 1822e126ba97SEli Cohen struct mlx5_ib_pd *pd, 1823e126ba97SEli Cohen int writ) 1824e126ba97SEli Cohen { 1825e126ba97SEli Cohen struct mlx5_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list); 1826e126ba97SEli Cohen u64 *page_list = wr->wr.fast_reg.page_list->page_list; 1827e126ba97SEli Cohen u64 perm = MLX5_EN_RD | (writ ? MLX5_EN_WR : 0); 1828e126ba97SEli Cohen int i; 1829e126ba97SEli Cohen 1830e126ba97SEli Cohen for (i = 0; i < wr->wr.fast_reg.page_list_len; i++) 1831e126ba97SEli Cohen mfrpl->mapped_page_list[i] = cpu_to_be64(page_list[i] | perm); 1832e126ba97SEli Cohen dseg->addr = cpu_to_be64(mfrpl->map); 1833e126ba97SEli Cohen dseg->byte_count = cpu_to_be32(ALIGN(sizeof(u64) * wr->wr.fast_reg.page_list_len, 64)); 1834e126ba97SEli Cohen dseg->lkey = cpu_to_be32(pd->pa_lkey); 1835e126ba97SEli Cohen } 1836e126ba97SEli Cohen 1837e126ba97SEli Cohen static __be32 send_ieth(struct ib_send_wr *wr) 1838e126ba97SEli Cohen { 1839e126ba97SEli Cohen switch (wr->opcode) { 1840e126ba97SEli Cohen case IB_WR_SEND_WITH_IMM: 1841e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 1842e126ba97SEli Cohen return wr->ex.imm_data; 1843e126ba97SEli Cohen 1844e126ba97SEli Cohen case IB_WR_SEND_WITH_INV: 1845e126ba97SEli Cohen return cpu_to_be32(wr->ex.invalidate_rkey); 1846e126ba97SEli Cohen 1847e126ba97SEli Cohen default: 1848e126ba97SEli Cohen return 0; 1849e126ba97SEli Cohen } 1850e126ba97SEli Cohen } 1851e126ba97SEli Cohen 1852e126ba97SEli Cohen static u8 calc_sig(void *wqe, int size) 1853e126ba97SEli Cohen { 1854e126ba97SEli Cohen u8 *p = wqe; 1855e126ba97SEli Cohen u8 res = 0; 1856e126ba97SEli Cohen int i; 1857e126ba97SEli Cohen 1858e126ba97SEli Cohen for (i = 0; i < size; i++) 1859e126ba97SEli Cohen res ^= p[i]; 1860e126ba97SEli Cohen 1861e126ba97SEli Cohen return ~res; 1862e126ba97SEli Cohen } 1863e126ba97SEli Cohen 1864e126ba97SEli Cohen static u8 wq_sig(void *wqe) 1865e126ba97SEli Cohen { 1866e126ba97SEli Cohen return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4); 1867e126ba97SEli Cohen } 1868e126ba97SEli Cohen 1869e126ba97SEli Cohen static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr, 1870e126ba97SEli Cohen void *wqe, int *sz) 1871e126ba97SEli Cohen { 1872e126ba97SEli Cohen struct mlx5_wqe_inline_seg *seg; 1873e126ba97SEli Cohen void *qend = qp->sq.qend; 1874e126ba97SEli Cohen void *addr; 1875e126ba97SEli Cohen int inl = 0; 1876e126ba97SEli Cohen int copy; 1877e126ba97SEli Cohen int len; 1878e126ba97SEli Cohen int i; 1879e126ba97SEli Cohen 1880e126ba97SEli Cohen seg = wqe; 1881e126ba97SEli Cohen wqe += sizeof(*seg); 1882e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) { 1883e126ba97SEli Cohen addr = (void *)(unsigned long)(wr->sg_list[i].addr); 1884e126ba97SEli Cohen len = wr->sg_list[i].length; 1885e126ba97SEli Cohen inl += len; 1886e126ba97SEli Cohen 1887e126ba97SEli Cohen if (unlikely(inl > qp->max_inline_data)) 1888e126ba97SEli Cohen return -ENOMEM; 1889e126ba97SEli Cohen 1890e126ba97SEli Cohen if (unlikely(wqe + len > qend)) { 1891e126ba97SEli Cohen copy = qend - wqe; 1892e126ba97SEli Cohen memcpy(wqe, addr, copy); 1893e126ba97SEli Cohen addr += copy; 1894e126ba97SEli Cohen len -= copy; 1895e126ba97SEli Cohen wqe = mlx5_get_send_wqe(qp, 0); 1896e126ba97SEli Cohen } 1897e126ba97SEli Cohen memcpy(wqe, addr, len); 1898e126ba97SEli Cohen wqe += len; 1899e126ba97SEli Cohen } 1900e126ba97SEli Cohen 1901e126ba97SEli Cohen seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG); 1902e126ba97SEli Cohen 1903e126ba97SEli Cohen *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16; 1904e126ba97SEli Cohen 1905e126ba97SEli Cohen return 0; 1906e126ba97SEli Cohen } 1907e126ba97SEli Cohen 1908e126ba97SEli Cohen static int set_frwr_li_wr(void **seg, struct ib_send_wr *wr, int *size, 1909e126ba97SEli Cohen struct mlx5_core_dev *mdev, struct mlx5_ib_pd *pd, struct mlx5_ib_qp *qp) 1910e126ba97SEli Cohen { 1911e126ba97SEli Cohen int writ = 0; 1912e126ba97SEli Cohen int li; 1913e126ba97SEli Cohen 1914e126ba97SEli Cohen li = wr->opcode == IB_WR_LOCAL_INV ? 1 : 0; 1915e126ba97SEli Cohen if (unlikely(wr->send_flags & IB_SEND_INLINE)) 1916e126ba97SEli Cohen return -EINVAL; 1917e126ba97SEli Cohen 1918e126ba97SEli Cohen set_frwr_umr_segment(*seg, wr, li); 1919e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 1920e126ba97SEli Cohen *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 1921e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 1922e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 1923e126ba97SEli Cohen set_mkey_segment(*seg, wr, li, &writ); 1924e126ba97SEli Cohen *seg += sizeof(struct mlx5_mkey_seg); 1925e126ba97SEli Cohen *size += sizeof(struct mlx5_mkey_seg) / 16; 1926e126ba97SEli Cohen if (unlikely((*seg == qp->sq.qend))) 1927e126ba97SEli Cohen *seg = mlx5_get_send_wqe(qp, 0); 1928e126ba97SEli Cohen if (!li) { 1929e126ba97SEli Cohen set_frwr_pages(*seg, wr, mdev, pd, writ); 1930e126ba97SEli Cohen *seg += sizeof(struct mlx5_wqe_data_seg); 1931e126ba97SEli Cohen *size += (sizeof(struct mlx5_wqe_data_seg) / 16); 1932e126ba97SEli Cohen } 1933e126ba97SEli Cohen return 0; 1934e126ba97SEli Cohen } 1935e126ba97SEli Cohen 1936e126ba97SEli Cohen static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16) 1937e126ba97SEli Cohen { 1938e126ba97SEli Cohen __be32 *p = NULL; 1939e126ba97SEli Cohen int tidx = idx; 1940e126ba97SEli Cohen int i, j; 1941e126ba97SEli Cohen 1942e126ba97SEli Cohen pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx)); 1943e126ba97SEli Cohen for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) { 1944e126ba97SEli Cohen if ((i & 0xf) == 0) { 1945e126ba97SEli Cohen void *buf = mlx5_get_send_wqe(qp, tidx); 1946e126ba97SEli Cohen tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1); 1947e126ba97SEli Cohen p = buf; 1948e126ba97SEli Cohen j = 0; 1949e126ba97SEli Cohen } 1950e126ba97SEli Cohen pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]), 1951e126ba97SEli Cohen be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]), 1952e126ba97SEli Cohen be32_to_cpu(p[j + 3])); 1953e126ba97SEli Cohen } 1954e126ba97SEli Cohen } 1955e126ba97SEli Cohen 1956e126ba97SEli Cohen static void mlx5_bf_copy(u64 __iomem *dst, u64 *src, 1957e126ba97SEli Cohen unsigned bytecnt, struct mlx5_ib_qp *qp) 1958e126ba97SEli Cohen { 1959e126ba97SEli Cohen while (bytecnt > 0) { 1960e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1961e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1962e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1963e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1964e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1965e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1966e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1967e126ba97SEli Cohen __iowrite64_copy(dst++, src++, 8); 1968e126ba97SEli Cohen bytecnt -= 64; 1969e126ba97SEli Cohen if (unlikely(src == qp->sq.qend)) 1970e126ba97SEli Cohen src = mlx5_get_send_wqe(qp, 0); 1971e126ba97SEli Cohen } 1972e126ba97SEli Cohen } 1973e126ba97SEli Cohen 1974e126ba97SEli Cohen static u8 get_fence(u8 fence, struct ib_send_wr *wr) 1975e126ba97SEli Cohen { 1976e126ba97SEli Cohen if (unlikely(wr->opcode == IB_WR_LOCAL_INV && 1977e126ba97SEli Cohen wr->send_flags & IB_SEND_FENCE)) 1978e126ba97SEli Cohen return MLX5_FENCE_MODE_STRONG_ORDERING; 1979e126ba97SEli Cohen 1980e126ba97SEli Cohen if (unlikely(fence)) { 1981e126ba97SEli Cohen if (wr->send_flags & IB_SEND_FENCE) 1982e126ba97SEli Cohen return MLX5_FENCE_MODE_SMALL_AND_FENCE; 1983e126ba97SEli Cohen else 1984e126ba97SEli Cohen return fence; 1985e126ba97SEli Cohen 1986e126ba97SEli Cohen } else { 1987e126ba97SEli Cohen return 0; 1988e126ba97SEli Cohen } 1989e126ba97SEli Cohen } 1990e126ba97SEli Cohen 1991e126ba97SEli Cohen int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 1992e126ba97SEli Cohen struct ib_send_wr **bad_wr) 1993e126ba97SEli Cohen { 1994e126ba97SEli Cohen struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */ 1995e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 1996e126ba97SEli Cohen struct mlx5_core_dev *mdev = &dev->mdev; 1997e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 1998e126ba97SEli Cohen struct mlx5_wqe_data_seg *dpseg; 1999e126ba97SEli Cohen struct mlx5_wqe_xrc_seg *xrc; 2000e126ba97SEli Cohen struct mlx5_bf *bf = qp->bf; 2001e126ba97SEli Cohen int uninitialized_var(size); 2002e126ba97SEli Cohen void *qend = qp->sq.qend; 2003e126ba97SEli Cohen unsigned long flags; 2004e126ba97SEli Cohen u32 mlx5_opcode; 2005e126ba97SEli Cohen unsigned idx; 2006e126ba97SEli Cohen int err = 0; 2007e126ba97SEli Cohen int inl = 0; 2008e126ba97SEli Cohen int num_sge; 2009e126ba97SEli Cohen void *seg; 2010e126ba97SEli Cohen int nreq; 2011e126ba97SEli Cohen int i; 2012e126ba97SEli Cohen u8 next_fence = 0; 2013e126ba97SEli Cohen u8 opmod = 0; 2014e126ba97SEli Cohen u8 fence; 2015e126ba97SEli Cohen 2016e126ba97SEli Cohen spin_lock_irqsave(&qp->sq.lock, flags); 2017e126ba97SEli Cohen 2018e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2019e126ba97SEli Cohen if (unlikely(wr->opcode >= sizeof(mlx5_ib_opcode) / sizeof(mlx5_ib_opcode[0]))) { 2020e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2021e126ba97SEli Cohen err = -EINVAL; 2022e126ba97SEli Cohen *bad_wr = wr; 2023e126ba97SEli Cohen goto out; 2024e126ba97SEli Cohen } 2025e126ba97SEli Cohen 2026e126ba97SEli Cohen if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) { 2027e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2028e126ba97SEli Cohen err = -ENOMEM; 2029e126ba97SEli Cohen *bad_wr = wr; 2030e126ba97SEli Cohen goto out; 2031e126ba97SEli Cohen } 2032e126ba97SEli Cohen 2033e126ba97SEli Cohen fence = qp->fm_cache; 2034e126ba97SEli Cohen num_sge = wr->num_sge; 2035e126ba97SEli Cohen if (unlikely(num_sge > qp->sq.max_gs)) { 2036e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2037e126ba97SEli Cohen err = -ENOMEM; 2038e126ba97SEli Cohen *bad_wr = wr; 2039e126ba97SEli Cohen goto out; 2040e126ba97SEli Cohen } 2041e126ba97SEli Cohen 2042e126ba97SEli Cohen idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1); 2043e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, idx); 2044e126ba97SEli Cohen ctrl = seg; 2045e126ba97SEli Cohen *(uint32_t *)(seg + 8) = 0; 2046e126ba97SEli Cohen ctrl->imm = send_ieth(wr); 2047e126ba97SEli Cohen ctrl->fm_ce_se = qp->sq_signal_bits | 2048e126ba97SEli Cohen (wr->send_flags & IB_SEND_SIGNALED ? 2049e126ba97SEli Cohen MLX5_WQE_CTRL_CQ_UPDATE : 0) | 2050e126ba97SEli Cohen (wr->send_flags & IB_SEND_SOLICITED ? 2051e126ba97SEli Cohen MLX5_WQE_CTRL_SOLICITED : 0); 2052e126ba97SEli Cohen 2053e126ba97SEli Cohen seg += sizeof(*ctrl); 2054e126ba97SEli Cohen size = sizeof(*ctrl) / 16; 2055e126ba97SEli Cohen 2056e126ba97SEli Cohen switch (ibqp->qp_type) { 2057e126ba97SEli Cohen case IB_QPT_XRC_INI: 2058e126ba97SEli Cohen xrc = seg; 2059e126ba97SEli Cohen xrc->xrc_srqn = htonl(wr->xrc_remote_srq_num); 2060e126ba97SEli Cohen seg += sizeof(*xrc); 2061e126ba97SEli Cohen size += sizeof(*xrc) / 16; 2062e126ba97SEli Cohen /* fall through */ 2063e126ba97SEli Cohen case IB_QPT_RC: 2064e126ba97SEli Cohen switch (wr->opcode) { 2065e126ba97SEli Cohen case IB_WR_RDMA_READ: 2066e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2067e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2068e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2069e126ba97SEli Cohen wr->wr.rdma.rkey); 2070e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2071e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2072e126ba97SEli Cohen break; 2073e126ba97SEli Cohen 2074e126ba97SEli Cohen case IB_WR_ATOMIC_CMP_AND_SWP: 2075e126ba97SEli Cohen case IB_WR_ATOMIC_FETCH_AND_ADD: 2076e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.atomic.remote_addr, 2077e126ba97SEli Cohen wr->wr.atomic.rkey); 2078e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2079e126ba97SEli Cohen 2080e126ba97SEli Cohen set_atomic_seg(seg, wr); 2081e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_atomic_seg); 2082e126ba97SEli Cohen 2083e126ba97SEli Cohen size += (sizeof(struct mlx5_wqe_raddr_seg) + 2084e126ba97SEli Cohen sizeof(struct mlx5_wqe_atomic_seg)) / 16; 2085e126ba97SEli Cohen break; 2086e126ba97SEli Cohen 2087e126ba97SEli Cohen case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: 2088e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.atomic.remote_addr, 2089e126ba97SEli Cohen wr->wr.atomic.rkey); 2090e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2091e126ba97SEli Cohen 2092e126ba97SEli Cohen set_masked_atomic_seg(seg, wr); 2093e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_masked_atomic_seg); 2094e126ba97SEli Cohen 2095e126ba97SEli Cohen size += (sizeof(struct mlx5_wqe_raddr_seg) + 2096e126ba97SEli Cohen sizeof(struct mlx5_wqe_masked_atomic_seg)) / 16; 2097e126ba97SEli Cohen break; 2098e126ba97SEli Cohen 2099e126ba97SEli Cohen case IB_WR_LOCAL_INV: 2100e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2101e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_LOCAL_INV; 2102e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey); 2103e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2104e126ba97SEli Cohen if (err) { 2105e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2106e126ba97SEli Cohen *bad_wr = wr; 2107e126ba97SEli Cohen goto out; 2108e126ba97SEli Cohen } 2109e126ba97SEli Cohen num_sge = 0; 2110e126ba97SEli Cohen break; 2111e126ba97SEli Cohen 2112e126ba97SEli Cohen case IB_WR_FAST_REG_MR: 2113e126ba97SEli Cohen next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; 2114e126ba97SEli Cohen qp->sq.wr_data[idx] = IB_WR_FAST_REG_MR; 2115e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2116e126ba97SEli Cohen err = set_frwr_li_wr(&seg, wr, &size, mdev, to_mpd(ibqp->pd), qp); 2117e126ba97SEli Cohen if (err) { 2118e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2119e126ba97SEli Cohen *bad_wr = wr; 2120e126ba97SEli Cohen goto out; 2121e126ba97SEli Cohen } 2122e126ba97SEli Cohen num_sge = 0; 2123e126ba97SEli Cohen break; 2124e126ba97SEli Cohen 2125e126ba97SEli Cohen default: 2126e126ba97SEli Cohen break; 2127e126ba97SEli Cohen } 2128e126ba97SEli Cohen break; 2129e126ba97SEli Cohen 2130e126ba97SEli Cohen case IB_QPT_UC: 2131e126ba97SEli Cohen switch (wr->opcode) { 2132e126ba97SEli Cohen case IB_WR_RDMA_WRITE: 2133e126ba97SEli Cohen case IB_WR_RDMA_WRITE_WITH_IMM: 2134e126ba97SEli Cohen set_raddr_seg(seg, wr->wr.rdma.remote_addr, 2135e126ba97SEli Cohen wr->wr.rdma.rkey); 2136e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_raddr_seg); 2137e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_raddr_seg) / 16; 2138e126ba97SEli Cohen break; 2139e126ba97SEli Cohen 2140e126ba97SEli Cohen default: 2141e126ba97SEli Cohen break; 2142e126ba97SEli Cohen } 2143e126ba97SEli Cohen break; 2144e126ba97SEli Cohen 2145e126ba97SEli Cohen case IB_QPT_UD: 2146e126ba97SEli Cohen case IB_QPT_SMI: 2147e126ba97SEli Cohen case IB_QPT_GSI: 2148e126ba97SEli Cohen set_datagram_seg(seg, wr); 2149e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_datagram_seg); 2150e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_datagram_seg) / 16; 2151e126ba97SEli Cohen if (unlikely((seg == qend))) 2152e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2153e126ba97SEli Cohen break; 2154e126ba97SEli Cohen 2155e126ba97SEli Cohen case MLX5_IB_QPT_REG_UMR: 2156e126ba97SEli Cohen if (wr->opcode != MLX5_IB_WR_UMR) { 2157e126ba97SEli Cohen err = -EINVAL; 2158e126ba97SEli Cohen mlx5_ib_warn(dev, "bad opcode\n"); 2159e126ba97SEli Cohen goto out; 2160e126ba97SEli Cohen } 2161e126ba97SEli Cohen qp->sq.wr_data[idx] = MLX5_IB_WR_UMR; 2162e126ba97SEli Cohen ctrl->imm = cpu_to_be32(wr->wr.fast_reg.rkey); 2163e126ba97SEli Cohen set_reg_umr_segment(seg, wr); 2164e126ba97SEli Cohen seg += sizeof(struct mlx5_wqe_umr_ctrl_seg); 2165e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16; 2166e126ba97SEli Cohen if (unlikely((seg == qend))) 2167e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2168e126ba97SEli Cohen set_reg_mkey_segment(seg, wr); 2169e126ba97SEli Cohen seg += sizeof(struct mlx5_mkey_seg); 2170e126ba97SEli Cohen size += sizeof(struct mlx5_mkey_seg) / 16; 2171e126ba97SEli Cohen if (unlikely((seg == qend))) 2172e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2173e126ba97SEli Cohen break; 2174e126ba97SEli Cohen 2175e126ba97SEli Cohen default: 2176e126ba97SEli Cohen break; 2177e126ba97SEli Cohen } 2178e126ba97SEli Cohen 2179e126ba97SEli Cohen if (wr->send_flags & IB_SEND_INLINE && num_sge) { 2180e126ba97SEli Cohen int uninitialized_var(sz); 2181e126ba97SEli Cohen 2182e126ba97SEli Cohen err = set_data_inl_seg(qp, wr, seg, &sz); 2183e126ba97SEli Cohen if (unlikely(err)) { 2184e126ba97SEli Cohen mlx5_ib_warn(dev, "\n"); 2185e126ba97SEli Cohen *bad_wr = wr; 2186e126ba97SEli Cohen goto out; 2187e126ba97SEli Cohen } 2188e126ba97SEli Cohen inl = 1; 2189e126ba97SEli Cohen size += sz; 2190e126ba97SEli Cohen } else { 2191e126ba97SEli Cohen dpseg = seg; 2192e126ba97SEli Cohen for (i = 0; i < num_sge; i++) { 2193e126ba97SEli Cohen if (unlikely(dpseg == qend)) { 2194e126ba97SEli Cohen seg = mlx5_get_send_wqe(qp, 0); 2195e126ba97SEli Cohen dpseg = seg; 2196e126ba97SEli Cohen } 2197e126ba97SEli Cohen if (likely(wr->sg_list[i].length)) { 2198e126ba97SEli Cohen set_data_ptr_seg(dpseg, wr->sg_list + i); 2199e126ba97SEli Cohen size += sizeof(struct mlx5_wqe_data_seg) / 16; 2200e126ba97SEli Cohen dpseg++; 2201e126ba97SEli Cohen } 2202e126ba97SEli Cohen } 2203e126ba97SEli Cohen } 2204e126ba97SEli Cohen 2205e126ba97SEli Cohen mlx5_opcode = mlx5_ib_opcode[wr->opcode]; 2206e126ba97SEli Cohen ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) | 2207e126ba97SEli Cohen mlx5_opcode | 2208e126ba97SEli Cohen ((u32)opmod << 24)); 2209e126ba97SEli Cohen ctrl->qpn_ds = cpu_to_be32(size | (qp->mqp.qpn << 8)); 2210e126ba97SEli Cohen ctrl->fm_ce_se |= get_fence(fence, wr); 2211e126ba97SEli Cohen qp->fm_cache = next_fence; 2212e126ba97SEli Cohen if (unlikely(qp->wq_sig)) 2213e126ba97SEli Cohen ctrl->signature = wq_sig(ctrl); 2214e126ba97SEli Cohen 2215e126ba97SEli Cohen qp->sq.wrid[idx] = wr->wr_id; 2216e126ba97SEli Cohen qp->sq.w_list[idx].opcode = mlx5_opcode; 2217e126ba97SEli Cohen qp->sq.wqe_head[idx] = qp->sq.head + nreq; 2218e126ba97SEli Cohen qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB); 2219e126ba97SEli Cohen qp->sq.w_list[idx].next = qp->sq.cur_post; 2220e126ba97SEli Cohen 2221e126ba97SEli Cohen if (0) 2222e126ba97SEli Cohen dump_wqe(qp, idx, size); 2223e126ba97SEli Cohen } 2224e126ba97SEli Cohen 2225e126ba97SEli Cohen out: 2226e126ba97SEli Cohen if (likely(nreq)) { 2227e126ba97SEli Cohen qp->sq.head += nreq; 2228e126ba97SEli Cohen 2229e126ba97SEli Cohen /* Make sure that descriptors are written before 2230e126ba97SEli Cohen * updating doorbell record and ringing the doorbell 2231e126ba97SEli Cohen */ 2232e126ba97SEli Cohen wmb(); 2233e126ba97SEli Cohen 2234e126ba97SEli Cohen qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post); 2235e126ba97SEli Cohen 2236e126ba97SEli Cohen if (bf->need_lock) 2237e126ba97SEli Cohen spin_lock(&bf->lock); 2238e126ba97SEli Cohen 2239e126ba97SEli Cohen /* TBD enable WC */ 2240e126ba97SEli Cohen if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) { 2241e126ba97SEli Cohen mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp); 2242e126ba97SEli Cohen /* wc_wmb(); */ 2243e126ba97SEli Cohen } else { 2244e126ba97SEli Cohen mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset, 2245e126ba97SEli Cohen MLX5_GET_DOORBELL_LOCK(&bf->lock32)); 2246e126ba97SEli Cohen /* Make sure doorbells don't leak out of SQ spinlock 2247e126ba97SEli Cohen * and reach the HCA out of order. 2248e126ba97SEli Cohen */ 2249e126ba97SEli Cohen mmiowb(); 2250e126ba97SEli Cohen } 2251e126ba97SEli Cohen bf->offset ^= bf->buf_size; 2252e126ba97SEli Cohen if (bf->need_lock) 2253e126ba97SEli Cohen spin_unlock(&bf->lock); 2254e126ba97SEli Cohen } 2255e126ba97SEli Cohen 2256e126ba97SEli Cohen spin_unlock_irqrestore(&qp->sq.lock, flags); 2257e126ba97SEli Cohen 2258e126ba97SEli Cohen return err; 2259e126ba97SEli Cohen } 2260e126ba97SEli Cohen 2261e126ba97SEli Cohen static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size) 2262e126ba97SEli Cohen { 2263e126ba97SEli Cohen sig->signature = calc_sig(sig, size); 2264e126ba97SEli Cohen } 2265e126ba97SEli Cohen 2266e126ba97SEli Cohen int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 2267e126ba97SEli Cohen struct ib_recv_wr **bad_wr) 2268e126ba97SEli Cohen { 2269e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2270e126ba97SEli Cohen struct mlx5_wqe_data_seg *scat; 2271e126ba97SEli Cohen struct mlx5_rwqe_sig *sig; 2272e126ba97SEli Cohen unsigned long flags; 2273e126ba97SEli Cohen int err = 0; 2274e126ba97SEli Cohen int nreq; 2275e126ba97SEli Cohen int ind; 2276e126ba97SEli Cohen int i; 2277e126ba97SEli Cohen 2278e126ba97SEli Cohen spin_lock_irqsave(&qp->rq.lock, flags); 2279e126ba97SEli Cohen 2280e126ba97SEli Cohen ind = qp->rq.head & (qp->rq.wqe_cnt - 1); 2281e126ba97SEli Cohen 2282e126ba97SEli Cohen for (nreq = 0; wr; nreq++, wr = wr->next) { 2283e126ba97SEli Cohen if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) { 2284e126ba97SEli Cohen err = -ENOMEM; 2285e126ba97SEli Cohen *bad_wr = wr; 2286e126ba97SEli Cohen goto out; 2287e126ba97SEli Cohen } 2288e126ba97SEli Cohen 2289e126ba97SEli Cohen if (unlikely(wr->num_sge > qp->rq.max_gs)) { 2290e126ba97SEli Cohen err = -EINVAL; 2291e126ba97SEli Cohen *bad_wr = wr; 2292e126ba97SEli Cohen goto out; 2293e126ba97SEli Cohen } 2294e126ba97SEli Cohen 2295e126ba97SEli Cohen scat = get_recv_wqe(qp, ind); 2296e126ba97SEli Cohen if (qp->wq_sig) 2297e126ba97SEli Cohen scat++; 2298e126ba97SEli Cohen 2299e126ba97SEli Cohen for (i = 0; i < wr->num_sge; i++) 2300e126ba97SEli Cohen set_data_ptr_seg(scat + i, wr->sg_list + i); 2301e126ba97SEli Cohen 2302e126ba97SEli Cohen if (i < qp->rq.max_gs) { 2303e126ba97SEli Cohen scat[i].byte_count = 0; 2304e126ba97SEli Cohen scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY); 2305e126ba97SEli Cohen scat[i].addr = 0; 2306e126ba97SEli Cohen } 2307e126ba97SEli Cohen 2308e126ba97SEli Cohen if (qp->wq_sig) { 2309e126ba97SEli Cohen sig = (struct mlx5_rwqe_sig *)scat; 2310e126ba97SEli Cohen set_sig_seg(sig, (qp->rq.max_gs + 1) << 2); 2311e126ba97SEli Cohen } 2312e126ba97SEli Cohen 2313e126ba97SEli Cohen qp->rq.wrid[ind] = wr->wr_id; 2314e126ba97SEli Cohen 2315e126ba97SEli Cohen ind = (ind + 1) & (qp->rq.wqe_cnt - 1); 2316e126ba97SEli Cohen } 2317e126ba97SEli Cohen 2318e126ba97SEli Cohen out: 2319e126ba97SEli Cohen if (likely(nreq)) { 2320e126ba97SEli Cohen qp->rq.head += nreq; 2321e126ba97SEli Cohen 2322e126ba97SEli Cohen /* Make sure that descriptors are written before 2323e126ba97SEli Cohen * doorbell record. 2324e126ba97SEli Cohen */ 2325e126ba97SEli Cohen wmb(); 2326e126ba97SEli Cohen 2327e126ba97SEli Cohen *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff); 2328e126ba97SEli Cohen } 2329e126ba97SEli Cohen 2330e126ba97SEli Cohen spin_unlock_irqrestore(&qp->rq.lock, flags); 2331e126ba97SEli Cohen 2332e126ba97SEli Cohen return err; 2333e126ba97SEli Cohen } 2334e126ba97SEli Cohen 2335e126ba97SEli Cohen static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state) 2336e126ba97SEli Cohen { 2337e126ba97SEli Cohen switch (mlx5_state) { 2338e126ba97SEli Cohen case MLX5_QP_STATE_RST: return IB_QPS_RESET; 2339e126ba97SEli Cohen case MLX5_QP_STATE_INIT: return IB_QPS_INIT; 2340e126ba97SEli Cohen case MLX5_QP_STATE_RTR: return IB_QPS_RTR; 2341e126ba97SEli Cohen case MLX5_QP_STATE_RTS: return IB_QPS_RTS; 2342e126ba97SEli Cohen case MLX5_QP_STATE_SQ_DRAINING: 2343e126ba97SEli Cohen case MLX5_QP_STATE_SQD: return IB_QPS_SQD; 2344e126ba97SEli Cohen case MLX5_QP_STATE_SQER: return IB_QPS_SQE; 2345e126ba97SEli Cohen case MLX5_QP_STATE_ERR: return IB_QPS_ERR; 2346e126ba97SEli Cohen default: return -1; 2347e126ba97SEli Cohen } 2348e126ba97SEli Cohen } 2349e126ba97SEli Cohen 2350e126ba97SEli Cohen static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state) 2351e126ba97SEli Cohen { 2352e126ba97SEli Cohen switch (mlx5_mig_state) { 2353e126ba97SEli Cohen case MLX5_QP_PM_ARMED: return IB_MIG_ARMED; 2354e126ba97SEli Cohen case MLX5_QP_PM_REARM: return IB_MIG_REARM; 2355e126ba97SEli Cohen case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED; 2356e126ba97SEli Cohen default: return -1; 2357e126ba97SEli Cohen } 2358e126ba97SEli Cohen } 2359e126ba97SEli Cohen 2360e126ba97SEli Cohen static int to_ib_qp_access_flags(int mlx5_flags) 2361e126ba97SEli Cohen { 2362e126ba97SEli Cohen int ib_flags = 0; 2363e126ba97SEli Cohen 2364e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RRE) 2365e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_READ; 2366e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RWE) 2367e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_WRITE; 2368e126ba97SEli Cohen if (mlx5_flags & MLX5_QP_BIT_RAE) 2369e126ba97SEli Cohen ib_flags |= IB_ACCESS_REMOTE_ATOMIC; 2370e126ba97SEli Cohen 2371e126ba97SEli Cohen return ib_flags; 2372e126ba97SEli Cohen } 2373e126ba97SEli Cohen 2374e126ba97SEli Cohen static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr, 2375e126ba97SEli Cohen struct mlx5_qp_path *path) 2376e126ba97SEli Cohen { 2377e126ba97SEli Cohen struct mlx5_core_dev *dev = &ibdev->mdev; 2378e126ba97SEli Cohen 2379e126ba97SEli Cohen memset(ib_ah_attr, 0, sizeof(*ib_ah_attr)); 2380e126ba97SEli Cohen ib_ah_attr->port_num = path->port; 2381e126ba97SEli Cohen 2382e126ba97SEli Cohen if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->caps.num_ports) 2383e126ba97SEli Cohen return; 2384e126ba97SEli Cohen 2385e126ba97SEli Cohen ib_ah_attr->sl = path->sl & 0xf; 2386e126ba97SEli Cohen 2387e126ba97SEli Cohen ib_ah_attr->dlid = be16_to_cpu(path->rlid); 2388e126ba97SEli Cohen ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f; 2389e126ba97SEli Cohen ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0; 2390e126ba97SEli Cohen ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0; 2391e126ba97SEli Cohen if (ib_ah_attr->ah_flags) { 2392e126ba97SEli Cohen ib_ah_attr->grh.sgid_index = path->mgid_index; 2393e126ba97SEli Cohen ib_ah_attr->grh.hop_limit = path->hop_limit; 2394e126ba97SEli Cohen ib_ah_attr->grh.traffic_class = 2395e126ba97SEli Cohen (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; 2396e126ba97SEli Cohen ib_ah_attr->grh.flow_label = 2397e126ba97SEli Cohen be32_to_cpu(path->tclass_flowlabel) & 0xfffff; 2398e126ba97SEli Cohen memcpy(ib_ah_attr->grh.dgid.raw, 2399e126ba97SEli Cohen path->rgid, sizeof(ib_ah_attr->grh.dgid.raw)); 2400e126ba97SEli Cohen } 2401e126ba97SEli Cohen } 2402e126ba97SEli Cohen 2403e126ba97SEli Cohen int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 2404e126ba97SEli Cohen struct ib_qp_init_attr *qp_init_attr) 2405e126ba97SEli Cohen { 2406e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 2407e126ba97SEli Cohen struct mlx5_ib_qp *qp = to_mqp(ibqp); 2408e126ba97SEli Cohen struct mlx5_query_qp_mbox_out *outb; 2409e126ba97SEli Cohen struct mlx5_qp_context *context; 2410e126ba97SEli Cohen int mlx5_state; 2411e126ba97SEli Cohen int err = 0; 2412e126ba97SEli Cohen 2413e126ba97SEli Cohen mutex_lock(&qp->mutex); 2414e126ba97SEli Cohen outb = kzalloc(sizeof(*outb), GFP_KERNEL); 2415e126ba97SEli Cohen if (!outb) { 2416e126ba97SEli Cohen err = -ENOMEM; 2417e126ba97SEli Cohen goto out; 2418e126ba97SEli Cohen } 2419e126ba97SEli Cohen context = &outb->ctx; 2420e126ba97SEli Cohen err = mlx5_core_qp_query(&dev->mdev, &qp->mqp, outb, sizeof(*outb)); 2421e126ba97SEli Cohen if (err) 2422e126ba97SEli Cohen goto out_free; 2423e126ba97SEli Cohen 2424e126ba97SEli Cohen mlx5_state = be32_to_cpu(context->flags) >> 28; 2425e126ba97SEli Cohen 2426e126ba97SEli Cohen qp->state = to_ib_qp_state(mlx5_state); 2427e126ba97SEli Cohen qp_attr->qp_state = qp->state; 2428e126ba97SEli Cohen qp_attr->path_mtu = context->mtu_msgmax >> 5; 2429e126ba97SEli Cohen qp_attr->path_mig_state = 2430e126ba97SEli Cohen to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3); 2431e126ba97SEli Cohen qp_attr->qkey = be32_to_cpu(context->qkey); 2432e126ba97SEli Cohen qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff; 2433e126ba97SEli Cohen qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff; 2434e126ba97SEli Cohen qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff; 2435e126ba97SEli Cohen qp_attr->qp_access_flags = 2436e126ba97SEli Cohen to_ib_qp_access_flags(be32_to_cpu(context->params2)); 2437e126ba97SEli Cohen 2438e126ba97SEli Cohen if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) { 2439e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); 2440e126ba97SEli Cohen to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); 2441e126ba97SEli Cohen qp_attr->alt_pkey_index = context->alt_path.pkey_index & 0x7f; 2442e126ba97SEli Cohen qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; 2443e126ba97SEli Cohen } 2444e126ba97SEli Cohen 2445e126ba97SEli Cohen qp_attr->pkey_index = context->pri_path.pkey_index & 0x7f; 2446e126ba97SEli Cohen qp_attr->port_num = context->pri_path.port; 2447e126ba97SEli Cohen 2448e126ba97SEli Cohen /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ 2449e126ba97SEli Cohen qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING; 2450e126ba97SEli Cohen 2451e126ba97SEli Cohen qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7); 2452e126ba97SEli Cohen 2453e126ba97SEli Cohen qp_attr->max_dest_rd_atomic = 2454e126ba97SEli Cohen 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); 2455e126ba97SEli Cohen qp_attr->min_rnr_timer = 2456e126ba97SEli Cohen (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; 2457e126ba97SEli Cohen qp_attr->timeout = context->pri_path.ackto_lt >> 3; 2458e126ba97SEli Cohen qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; 2459e126ba97SEli Cohen qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7; 2460e126ba97SEli Cohen qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3; 2461e126ba97SEli Cohen qp_attr->cur_qp_state = qp_attr->qp_state; 2462e126ba97SEli Cohen qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; 2463e126ba97SEli Cohen qp_attr->cap.max_recv_sge = qp->rq.max_gs; 2464e126ba97SEli Cohen 2465e126ba97SEli Cohen if (!ibqp->uobject) { 2466e126ba97SEli Cohen qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; 2467e126ba97SEli Cohen qp_attr->cap.max_send_sge = qp->sq.max_gs; 2468e126ba97SEli Cohen } else { 2469e126ba97SEli Cohen qp_attr->cap.max_send_wr = 0; 2470e126ba97SEli Cohen qp_attr->cap.max_send_sge = 0; 2471e126ba97SEli Cohen } 2472e126ba97SEli Cohen 2473e126ba97SEli Cohen /* We don't support inline sends for kernel QPs (yet), and we 2474e126ba97SEli Cohen * don't know what userspace's value should be. 2475e126ba97SEli Cohen */ 2476e126ba97SEli Cohen qp_attr->cap.max_inline_data = 0; 2477e126ba97SEli Cohen 2478e126ba97SEli Cohen qp_init_attr->cap = qp_attr->cap; 2479e126ba97SEli Cohen 2480e126ba97SEli Cohen qp_init_attr->create_flags = 0; 2481e126ba97SEli Cohen if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK) 2482e126ba97SEli Cohen qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; 2483e126ba97SEli Cohen 2484e126ba97SEli Cohen qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ? 2485e126ba97SEli Cohen IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR; 2486e126ba97SEli Cohen 2487e126ba97SEli Cohen out_free: 2488e126ba97SEli Cohen kfree(outb); 2489e126ba97SEli Cohen 2490e126ba97SEli Cohen out: 2491e126ba97SEli Cohen mutex_unlock(&qp->mutex); 2492e126ba97SEli Cohen return err; 2493e126ba97SEli Cohen } 2494e126ba97SEli Cohen 2495e126ba97SEli Cohen struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 2496e126ba97SEli Cohen struct ib_ucontext *context, 2497e126ba97SEli Cohen struct ib_udata *udata) 2498e126ba97SEli Cohen { 2499e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(ibdev); 2500e126ba97SEli Cohen struct mlx5_ib_xrcd *xrcd; 2501e126ba97SEli Cohen int err; 2502e126ba97SEli Cohen 2503e126ba97SEli Cohen if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_XRC)) 2504e126ba97SEli Cohen return ERR_PTR(-ENOSYS); 2505e126ba97SEli Cohen 2506e126ba97SEli Cohen xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL); 2507e126ba97SEli Cohen if (!xrcd) 2508e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 2509e126ba97SEli Cohen 2510e126ba97SEli Cohen err = mlx5_core_xrcd_alloc(&dev->mdev, &xrcd->xrcdn); 2511e126ba97SEli Cohen if (err) { 2512e126ba97SEli Cohen kfree(xrcd); 2513e126ba97SEli Cohen return ERR_PTR(-ENOMEM); 2514e126ba97SEli Cohen } 2515e126ba97SEli Cohen 2516e126ba97SEli Cohen return &xrcd->ibxrcd; 2517e126ba97SEli Cohen } 2518e126ba97SEli Cohen 2519e126ba97SEli Cohen int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd) 2520e126ba97SEli Cohen { 2521e126ba97SEli Cohen struct mlx5_ib_dev *dev = to_mdev(xrcd->device); 2522e126ba97SEli Cohen u32 xrcdn = to_mxrcd(xrcd)->xrcdn; 2523e126ba97SEli Cohen int err; 2524e126ba97SEli Cohen 2525e126ba97SEli Cohen err = mlx5_core_xrcd_dealloc(&dev->mdev, xrcdn); 2526e126ba97SEli Cohen if (err) { 2527e126ba97SEli Cohen mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn); 2528e126ba97SEli Cohen return err; 2529e126ba97SEli Cohen } 2530e126ba97SEli Cohen 2531e126ba97SEli Cohen kfree(xrcd); 2532e126ba97SEli Cohen 2533e126ba97SEli Cohen return 0; 2534e126ba97SEli Cohen } 2535