2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/module.h>
34 #include <rdma/ib_umem.h>
35 #include <rdma/ib_cache.h>
36 #include <rdma/ib_user_verbs.h>
39 /* not supported currently */
40 static int wq_signature;
43 MLX5_IB_ACK_REQ_FREQ = 8,
47 MLX5_IB_DEFAULT_SCHED_QUEUE = 0x83,
48 MLX5_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f,
49 MLX5_IB_LINK_TYPE_IB = 0,
50 MLX5_IB_LINK_TYPE_ETH = 1
54 MLX5_IB_SQ_STRIDE = 6,
55 MLX5_IB_CACHE_LINE_SIZE = 64,
58 static const u32 mlx5_ib_opcode[] = {
59 [IB_WR_SEND] = MLX5_OPCODE_SEND,
60 [IB_WR_LSO] = MLX5_OPCODE_LSO,
61 [IB_WR_SEND_WITH_IMM] = MLX5_OPCODE_SEND_IMM,
62 [IB_WR_RDMA_WRITE] = MLX5_OPCODE_RDMA_WRITE,
63 [IB_WR_RDMA_WRITE_WITH_IMM] = MLX5_OPCODE_RDMA_WRITE_IMM,
64 [IB_WR_RDMA_READ] = MLX5_OPCODE_RDMA_READ,
65 [IB_WR_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_CS,
66 [IB_WR_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_FA,
67 [IB_WR_SEND_WITH_INV] = MLX5_OPCODE_SEND_INVAL,
68 [IB_WR_LOCAL_INV] = MLX5_OPCODE_UMR,
69 [IB_WR_REG_MR] = MLX5_OPCODE_UMR,
70 [IB_WR_MASKED_ATOMIC_CMP_AND_SWP] = MLX5_OPCODE_ATOMIC_MASKED_CS,
71 [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD] = MLX5_OPCODE_ATOMIC_MASKED_FA,
72 [MLX5_IB_WR_UMR] = MLX5_OPCODE_UMR,
75 struct mlx5_wqe_eth_pad {
79 enum raw_qp_set_mask_map {
80 MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID = 1UL << 0,
83 struct mlx5_modify_raw_qp_param {
86 u32 set_mask; /* raw_qp_set_mask_map */
90 static void get_cqs(enum ib_qp_type qp_type,
91 struct ib_cq *ib_send_cq, struct ib_cq *ib_recv_cq,
92 struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq);
94 static int is_qp0(enum ib_qp_type qp_type)
96 return qp_type == IB_QPT_SMI;
99 static int is_sqp(enum ib_qp_type qp_type)
101 return is_qp0(qp_type) || is_qp1(qp_type);
104 static void *get_wqe(struct mlx5_ib_qp *qp, int offset)
106 return mlx5_buf_offset(&qp->buf, offset);
109 static void *get_recv_wqe(struct mlx5_ib_qp *qp, int n)
111 return get_wqe(qp, qp->rq.offset + (n << qp->rq.wqe_shift));
114 void *mlx5_get_send_wqe(struct mlx5_ib_qp *qp, int n)
116 return get_wqe(qp, qp->sq.offset + (n << MLX5_IB_SQ_STRIDE));
120 * mlx5_ib_read_user_wqe() - Copy a user-space WQE to kernel space.
122 * @qp: QP to copy from.
123 * @send: copy from the send queue when non-zero, use the receive queue
125 * @wqe_index: index to start copying from. For send work queues, the
126 * wqe_index is in units of MLX5_SEND_WQE_BB.
127 * For receive work queue, it is the number of work queue
128 * element in the queue.
129 * @buffer: destination buffer.
130 * @length: maximum number of bytes to copy.
132 * Copies at least a single WQE, but may copy more data.
134 * Return: the number of bytes copied, or an error code.
136 int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index,
137 void *buffer, u32 length,
138 struct mlx5_ib_qp_base *base)
140 struct ib_device *ibdev = qp->ibqp.device;
141 struct mlx5_ib_dev *dev = to_mdev(ibdev);
142 struct mlx5_ib_wq *wq = send ? &qp->sq : &qp->rq;
145 struct ib_umem *umem = base->ubuffer.umem;
146 u32 first_copy_length;
150 if (wq->wqe_cnt == 0) {
151 mlx5_ib_dbg(dev, "mlx5_ib_read_user_wqe for a QP with wqe_cnt == 0. qp_type: 0x%x\n",
156 offset = wq->offset + ((wqe_index % wq->wqe_cnt) << wq->wqe_shift);
157 wq_end = wq->offset + (wq->wqe_cnt << wq->wqe_shift);
159 if (send && length < sizeof(struct mlx5_wqe_ctrl_seg))
162 if (offset > umem->length ||
163 (send && offset + sizeof(struct mlx5_wqe_ctrl_seg) > umem->length))
166 first_copy_length = min_t(u32, offset + length, wq_end) - offset;
167 ret = ib_umem_copy_from(buffer, umem, offset, first_copy_length);
172 struct mlx5_wqe_ctrl_seg *ctrl = buffer;
173 int ds = be32_to_cpu(ctrl->qpn_ds) & MLX5_WQE_CTRL_DS_MASK;
175 wqe_length = ds * MLX5_WQE_DS_UNITS;
177 wqe_length = 1 << wq->wqe_shift;
180 if (wqe_length <= first_copy_length)
181 return first_copy_length;
183 ret = ib_umem_copy_from(buffer + first_copy_length, umem, wq->offset,
184 wqe_length - first_copy_length);
191 static void mlx5_ib_qp_event(struct mlx5_core_qp *qp, int type)
193 struct ib_qp *ibqp = &to_mibqp(qp)->ibqp;
194 struct ib_event event;
196 if (type == MLX5_EVENT_TYPE_PATH_MIG) {
197 /* This event is only valid for trans_qps */
198 to_mibqp(qp)->port = to_mibqp(qp)->trans_qp.alt_port;
201 if (ibqp->event_handler) {
202 event.device = ibqp->device;
203 event.element.qp = ibqp;
205 case MLX5_EVENT_TYPE_PATH_MIG:
206 event.event = IB_EVENT_PATH_MIG;
208 case MLX5_EVENT_TYPE_COMM_EST:
209 event.event = IB_EVENT_COMM_EST;
211 case MLX5_EVENT_TYPE_SQ_DRAINED:
212 event.event = IB_EVENT_SQ_DRAINED;
214 case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
215 event.event = IB_EVENT_QP_LAST_WQE_REACHED;
217 case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
218 event.event = IB_EVENT_QP_FATAL;
220 case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
221 event.event = IB_EVENT_PATH_MIG_ERR;
223 case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
224 event.event = IB_EVENT_QP_REQ_ERR;
226 case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
227 event.event = IB_EVENT_QP_ACCESS_ERR;
230 pr_warn("mlx5_ib: Unexpected event type %d on QP %06x\n", type, qp->qpn);
234 ibqp->event_handler(&event, ibqp->qp_context);
238 static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap,
239 int has_rq, struct mlx5_ib_qp *qp, struct mlx5_ib_create_qp *ucmd)
244 /* Sanity check RQ size before proceeding */
245 if (cap->max_recv_wr > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz)))
251 qp->rq.wqe_shift = 0;
252 cap->max_recv_wr = 0;
253 cap->max_recv_sge = 0;
256 qp->rq.wqe_cnt = ucmd->rq_wqe_count;
257 qp->rq.wqe_shift = ucmd->rq_wqe_shift;
258 qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig;
259 qp->rq.max_post = qp->rq.wqe_cnt;
261 wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0;
262 wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg);
263 wqe_size = roundup_pow_of_two(wqe_size);
264 wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size;
265 wq_size = max_t(int, wq_size, MLX5_SEND_WQE_BB);
266 qp->rq.wqe_cnt = wq_size / wqe_size;
267 if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq)) {
268 mlx5_ib_dbg(dev, "wqe_size %d, max %d\n",
270 MLX5_CAP_GEN(dev->mdev,
274 qp->rq.wqe_shift = ilog2(wqe_size);
275 qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig;
276 qp->rq.max_post = qp->rq.wqe_cnt;
283 static int sq_overhead(struct ib_qp_init_attr *attr)
287 switch (attr->qp_type) {
289 size += sizeof(struct mlx5_wqe_xrc_seg);
292 size += sizeof(struct mlx5_wqe_ctrl_seg) +
293 max(sizeof(struct mlx5_wqe_atomic_seg) +
294 sizeof(struct mlx5_wqe_raddr_seg),
295 sizeof(struct mlx5_wqe_umr_ctrl_seg) +
296 sizeof(struct mlx5_mkey_seg));
303 size += sizeof(struct mlx5_wqe_ctrl_seg) +
304 max(sizeof(struct mlx5_wqe_raddr_seg),
305 sizeof(struct mlx5_wqe_umr_ctrl_seg) +
306 sizeof(struct mlx5_mkey_seg));
310 if (attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO)
311 size += sizeof(struct mlx5_wqe_eth_pad) +
312 sizeof(struct mlx5_wqe_eth_seg);
315 case MLX5_IB_QPT_HW_GSI:
316 size += sizeof(struct mlx5_wqe_ctrl_seg) +
317 sizeof(struct mlx5_wqe_datagram_seg);
320 case MLX5_IB_QPT_REG_UMR:
321 size += sizeof(struct mlx5_wqe_ctrl_seg) +
322 sizeof(struct mlx5_wqe_umr_ctrl_seg) +
323 sizeof(struct mlx5_mkey_seg);
333 static int calc_send_wqe(struct ib_qp_init_attr *attr)
338 size = sq_overhead(attr);
342 if (attr->cap.max_inline_data) {
343 inl_size = size + sizeof(struct mlx5_wqe_inline_seg) +
344 attr->cap.max_inline_data;
347 size += attr->cap.max_send_sge * sizeof(struct mlx5_wqe_data_seg);
348 if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN &&
349 ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB) < MLX5_SIG_WQE_SIZE)
350 return MLX5_SIG_WQE_SIZE;
352 return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB);
355 static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr,
356 struct mlx5_ib_qp *qp)
361 if (!attr->cap.max_send_wr)
364 wqe_size = calc_send_wqe(attr);
365 mlx5_ib_dbg(dev, "wqe_size %d\n", wqe_size);
369 if (wqe_size > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) {
370 mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n",
371 wqe_size, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq));
375 qp->max_inline_data = wqe_size - sq_overhead(attr) -
376 sizeof(struct mlx5_wqe_inline_seg);
377 attr->cap.max_inline_data = qp->max_inline_data;
379 if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN)
380 qp->signature_en = true;
382 wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size);
383 qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB;
384 if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) {
385 mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n",
387 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz));
390 qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB);
391 qp->sq.max_gs = attr->cap.max_send_sge;
392 qp->sq.max_post = wq_size / wqe_size;
393 attr->cap.max_send_wr = qp->sq.max_post;
398 static int set_user_buf_size(struct mlx5_ib_dev *dev,
399 struct mlx5_ib_qp *qp,
400 struct mlx5_ib_create_qp *ucmd,
401 struct mlx5_ib_qp_base *base,
402 struct ib_qp_init_attr *attr)
404 int desc_sz = 1 << qp->sq.wqe_shift;
406 if (desc_sz > MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq)) {
407 mlx5_ib_warn(dev, "desc_sz %d, max_sq_desc_sz %d\n",
408 desc_sz, MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq));
412 if (ucmd->sq_wqe_count && ((1 << ilog2(ucmd->sq_wqe_count)) != ucmd->sq_wqe_count)) {
413 mlx5_ib_warn(dev, "sq_wqe_count %d, sq_wqe_count %d\n",
414 ucmd->sq_wqe_count, ucmd->sq_wqe_count);
418 qp->sq.wqe_cnt = ucmd->sq_wqe_count;
420 if (qp->sq.wqe_cnt > (1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz))) {
421 mlx5_ib_warn(dev, "wqe_cnt %d, max_wqes %d\n",
423 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz));
427 if (attr->qp_type == IB_QPT_RAW_PACKET) {
428 base->ubuffer.buf_size = qp->rq.wqe_cnt << qp->rq.wqe_shift;
429 qp->raw_packet_qp.sq.ubuffer.buf_size = qp->sq.wqe_cnt << 6;
431 base->ubuffer.buf_size = (qp->rq.wqe_cnt << qp->rq.wqe_shift) +
432 (qp->sq.wqe_cnt << 6);
438 static int qp_has_rq(struct ib_qp_init_attr *attr)
440 if (attr->qp_type == IB_QPT_XRC_INI ||
441 attr->qp_type == IB_QPT_XRC_TGT || attr->srq ||
442 attr->qp_type == MLX5_IB_QPT_REG_UMR ||
443 !attr->cap.max_recv_wr)
449 static int first_med_uuar(void)
454 static int next_uuar(int n)
458 while (((n % 4) & 2))
464 static int num_med_uuar(struct mlx5_uuar_info *uuari)
468 n = uuari->num_uars * MLX5_NON_FP_BF_REGS_PER_PAGE -
469 uuari->num_low_latency_uuars - 1;
471 return n >= 0 ? n : 0;
474 static int max_uuari(struct mlx5_uuar_info *uuari)
476 return uuari->num_uars * 4;
479 static int first_hi_uuar(struct mlx5_uuar_info *uuari)
485 med = num_med_uuar(uuari);
486 for (t = 0, i = first_med_uuar();; i = next_uuar(i)) {
495 static int alloc_high_class_uuar(struct mlx5_uuar_info *uuari)
499 for (i = first_hi_uuar(uuari); i < max_uuari(uuari); i = next_uuar(i)) {
500 if (!test_bit(i, uuari->bitmap)) {
501 set_bit(i, uuari->bitmap);
510 static int alloc_med_class_uuar(struct mlx5_uuar_info *uuari)
512 int minidx = first_med_uuar();
515 for (i = first_med_uuar(); i < first_hi_uuar(uuari); i = next_uuar(i)) {
516 if (uuari->count[i] < uuari->count[minidx])
520 uuari->count[minidx]++;
524 static int alloc_uuar(struct mlx5_uuar_info *uuari,
525 enum mlx5_ib_latency_class lat)
529 mutex_lock(&uuari->lock);
531 case MLX5_IB_LATENCY_CLASS_LOW:
533 uuari->count[uuarn]++;
536 case MLX5_IB_LATENCY_CLASS_MEDIUM:
540 uuarn = alloc_med_class_uuar(uuari);
543 case MLX5_IB_LATENCY_CLASS_HIGH:
547 uuarn = alloc_high_class_uuar(uuari);
550 case MLX5_IB_LATENCY_CLASS_FAST_PATH:
554 mutex_unlock(&uuari->lock);
559 static void free_med_class_uuar(struct mlx5_uuar_info *uuari, int uuarn)
561 clear_bit(uuarn, uuari->bitmap);
562 --uuari->count[uuarn];
565 static void free_high_class_uuar(struct mlx5_uuar_info *uuari, int uuarn)
567 clear_bit(uuarn, uuari->bitmap);
568 --uuari->count[uuarn];
571 static void free_uuar(struct mlx5_uuar_info *uuari, int uuarn)
573 int nuuars = uuari->num_uars * MLX5_BF_REGS_PER_PAGE;
574 int high_uuar = nuuars - uuari->num_low_latency_uuars;
576 mutex_lock(&uuari->lock);
578 --uuari->count[uuarn];
582 if (uuarn < high_uuar) {
583 free_med_class_uuar(uuari, uuarn);
587 free_high_class_uuar(uuari, uuarn);
590 mutex_unlock(&uuari->lock);
593 static enum mlx5_qp_state to_mlx5_state(enum ib_qp_state state)
596 case IB_QPS_RESET: return MLX5_QP_STATE_RST;
597 case IB_QPS_INIT: return MLX5_QP_STATE_INIT;
598 case IB_QPS_RTR: return MLX5_QP_STATE_RTR;
599 case IB_QPS_RTS: return MLX5_QP_STATE_RTS;
600 case IB_QPS_SQD: return MLX5_QP_STATE_SQD;
601 case IB_QPS_SQE: return MLX5_QP_STATE_SQER;
602 case IB_QPS_ERR: return MLX5_QP_STATE_ERR;
607 static int to_mlx5_st(enum ib_qp_type type)
610 case IB_QPT_RC: return MLX5_QP_ST_RC;
611 case IB_QPT_UC: return MLX5_QP_ST_UC;
612 case IB_QPT_UD: return MLX5_QP_ST_UD;
613 case MLX5_IB_QPT_REG_UMR: return MLX5_QP_ST_REG_UMR;
615 case IB_QPT_XRC_TGT: return MLX5_QP_ST_XRC;
616 case IB_QPT_SMI: return MLX5_QP_ST_QP0;
617 case MLX5_IB_QPT_HW_GSI: return MLX5_QP_ST_QP1;
618 case IB_QPT_RAW_IPV6: return MLX5_QP_ST_RAW_IPV6;
619 case IB_QPT_RAW_PACKET:
620 case IB_QPT_RAW_ETHERTYPE: return MLX5_QP_ST_RAW_ETHERTYPE;
622 default: return -EINVAL;
626 static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq,
627 struct mlx5_ib_cq *recv_cq);
628 static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq,
629 struct mlx5_ib_cq *recv_cq);
631 static int uuarn_to_uar_index(struct mlx5_uuar_info *uuari, int uuarn)
633 return uuari->uars[uuarn / MLX5_BF_REGS_PER_PAGE].index;
636 static int mlx5_ib_umem_get(struct mlx5_ib_dev *dev,
638 unsigned long addr, size_t size,
639 struct ib_umem **umem,
640 int *npages, int *page_shift, int *ncont,
645 *umem = ib_umem_get(pd->uobject->context, addr, size, 0, 0);
647 mlx5_ib_dbg(dev, "umem_get failed\n");
648 return PTR_ERR(*umem);
651 mlx5_ib_cont_pages(*umem, addr, npages, page_shift, ncont, NULL);
653 err = mlx5_ib_get_buf_offset(addr, *page_shift, offset);
655 mlx5_ib_warn(dev, "bad offset\n");
659 mlx5_ib_dbg(dev, "addr 0x%lx, size %zu, npages %d, page_shift %d, ncont %d, offset %d\n",
660 addr, size, *npages, *page_shift, *ncont, *offset);
665 ib_umem_release(*umem);
671 static void destroy_user_rq(struct ib_pd *pd, struct mlx5_ib_rwq *rwq)
673 struct mlx5_ib_ucontext *context;
675 context = to_mucontext(pd->uobject->context);
676 mlx5_ib_db_unmap_user(context, &rwq->db);
678 ib_umem_release(rwq->umem);
681 static int create_user_rq(struct mlx5_ib_dev *dev, struct ib_pd *pd,
682 struct mlx5_ib_rwq *rwq,
683 struct mlx5_ib_create_wq *ucmd)
685 struct mlx5_ib_ucontext *context;
695 context = to_mucontext(pd->uobject->context);
696 rwq->umem = ib_umem_get(pd->uobject->context, ucmd->buf_addr,
697 rwq->buf_size, 0, 0);
698 if (IS_ERR(rwq->umem)) {
699 mlx5_ib_dbg(dev, "umem_get failed\n");
700 err = PTR_ERR(rwq->umem);
704 mlx5_ib_cont_pages(rwq->umem, ucmd->buf_addr, &npages, &page_shift,
706 err = mlx5_ib_get_buf_offset(ucmd->buf_addr, page_shift,
707 &rwq->rq_page_offset);
709 mlx5_ib_warn(dev, "bad offset\n");
713 rwq->rq_num_pas = ncont;
714 rwq->page_shift = page_shift;
715 rwq->log_page_size = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
716 rwq->wq_sig = !!(ucmd->flags & MLX5_WQ_FLAG_SIGNATURE);
718 mlx5_ib_dbg(dev, "addr 0x%llx, size %zd, npages %d, page_shift %d, ncont %d, offset %d\n",
719 (unsigned long long)ucmd->buf_addr, rwq->buf_size,
720 npages, page_shift, ncont, offset);
722 err = mlx5_ib_db_map_user(context, ucmd->db_addr, &rwq->db);
724 mlx5_ib_dbg(dev, "map failed\n");
728 rwq->create_type = MLX5_WQ_USER;
732 ib_umem_release(rwq->umem);
736 static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
737 struct mlx5_ib_qp *qp, struct ib_udata *udata,
738 struct ib_qp_init_attr *attr,
740 struct mlx5_ib_create_qp_resp *resp, int *inlen,
741 struct mlx5_ib_qp_base *base)
743 struct mlx5_ib_ucontext *context;
744 struct mlx5_ib_create_qp ucmd;
745 struct mlx5_ib_ubuffer *ubuffer = &base->ubuffer;
756 err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd));
758 mlx5_ib_dbg(dev, "copy failed\n");
762 context = to_mucontext(pd->uobject->context);
764 * TBD: should come from the verbs when we have the API
766 if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL)
767 /* In CROSS_CHANNEL CQ and QP must use the same UAR */
768 uuarn = MLX5_CROSS_CHANNEL_UUAR;
770 uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_HIGH);
772 mlx5_ib_dbg(dev, "failed to allocate low latency UUAR\n");
773 mlx5_ib_dbg(dev, "reverting to medium latency\n");
774 uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_MEDIUM);
776 mlx5_ib_dbg(dev, "failed to allocate medium latency UUAR\n");
777 mlx5_ib_dbg(dev, "reverting to high latency\n");
778 uuarn = alloc_uuar(&context->uuari, MLX5_IB_LATENCY_CLASS_LOW);
780 mlx5_ib_warn(dev, "uuar allocation failed\n");
787 uar_index = uuarn_to_uar_index(&context->uuari, uuarn);
788 mlx5_ib_dbg(dev, "uuarn 0x%x, uar_index 0x%x\n", uuarn, uar_index);
791 qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB);
792 qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift;
794 err = set_user_buf_size(dev, qp, &ucmd, base, attr);
798 if (ucmd.buf_addr && ubuffer->buf_size) {
799 ubuffer->buf_addr = ucmd.buf_addr;
800 err = mlx5_ib_umem_get(dev, pd, ubuffer->buf_addr,
802 &ubuffer->umem, &npages, &page_shift,
807 ubuffer->umem = NULL;
810 *inlen = MLX5_ST_SZ_BYTES(create_qp_in) +
811 MLX5_FLD_SZ_BYTES(create_qp_in, pas[0]) * ncont;
812 *in = mlx5_vzalloc(*inlen);
818 pas = (__be64 *)MLX5_ADDR_OF(create_qp_in, *in, pas);
820 mlx5_ib_populate_pas(dev, ubuffer->umem, page_shift, pas, 0);
822 qpc = MLX5_ADDR_OF(create_qp_in, *in, qpc);
824 MLX5_SET(qpc, qpc, log_page_size, page_shift - MLX5_ADAPTER_PAGE_SHIFT);
825 MLX5_SET(qpc, qpc, page_offset, offset);
827 MLX5_SET(qpc, qpc, uar_page, uar_index);
828 resp->uuar_index = uuarn;
831 err = mlx5_ib_db_map_user(context, ucmd.db_addr, &qp->db);
833 mlx5_ib_dbg(dev, "map failed\n");
837 err = ib_copy_to_udata(udata, resp, sizeof(*resp));
839 mlx5_ib_dbg(dev, "copy failed\n");
842 qp->create_type = MLX5_QP_USER;
847 mlx5_ib_db_unmap_user(context, &qp->db);
854 ib_umem_release(ubuffer->umem);
857 free_uuar(&context->uuari, uuarn);
861 static void destroy_qp_user(struct ib_pd *pd, struct mlx5_ib_qp *qp,
862 struct mlx5_ib_qp_base *base)
864 struct mlx5_ib_ucontext *context;
866 context = to_mucontext(pd->uobject->context);
867 mlx5_ib_db_unmap_user(context, &qp->db);
868 if (base->ubuffer.umem)
869 ib_umem_release(base->ubuffer.umem);
870 free_uuar(&context->uuari, qp->uuarn);
873 static int create_kernel_qp(struct mlx5_ib_dev *dev,
874 struct ib_qp_init_attr *init_attr,
875 struct mlx5_ib_qp *qp,
876 u32 **in, int *inlen,
877 struct mlx5_ib_qp_base *base)
879 enum mlx5_ib_latency_class lc = MLX5_IB_LATENCY_CLASS_LOW;
880 struct mlx5_uuar_info *uuari;
886 uuari = &dev->mdev->priv.uuari;
887 if (init_attr->create_flags & ~(IB_QP_CREATE_SIGNATURE_EN |
888 IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK |
889 IB_QP_CREATE_IPOIB_UD_LSO |
890 mlx5_ib_create_qp_sqpn_qp1()))
893 if (init_attr->qp_type == MLX5_IB_QPT_REG_UMR)
894 lc = MLX5_IB_LATENCY_CLASS_FAST_PATH;
896 uuarn = alloc_uuar(uuari, lc);
898 mlx5_ib_dbg(dev, "\n");
902 qp->bf = &uuari->bfs[uuarn];
903 uar_index = qp->bf->uar->index;
905 err = calc_sq_size(dev, init_attr, qp);
907 mlx5_ib_dbg(dev, "err %d\n", err);
912 qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift;
913 base->ubuffer.buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift);
915 err = mlx5_buf_alloc(dev->mdev, base->ubuffer.buf_size, &qp->buf);
917 mlx5_ib_dbg(dev, "err %d\n", err);
921 qp->sq.qend = mlx5_get_send_wqe(qp, qp->sq.wqe_cnt);
922 *inlen = MLX5_ST_SZ_BYTES(create_qp_in) +
923 MLX5_FLD_SZ_BYTES(create_qp_in, pas[0]) * qp->buf.npages;
924 *in = mlx5_vzalloc(*inlen);
930 qpc = MLX5_ADDR_OF(create_qp_in, *in, qpc);
931 MLX5_SET(qpc, qpc, uar_page, uar_index);
932 MLX5_SET(qpc, qpc, log_page_size, qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT);
934 /* Set "fast registration enabled" for all kernel QPs */
935 MLX5_SET(qpc, qpc, fre, 1);
936 MLX5_SET(qpc, qpc, rlky, 1);
938 if (init_attr->create_flags & mlx5_ib_create_qp_sqpn_qp1()) {
939 MLX5_SET(qpc, qpc, deth_sqpn, 1);
940 qp->flags |= MLX5_IB_QP_SQPN_QP1;
943 mlx5_fill_page_array(&qp->buf,
944 (__be64 *)MLX5_ADDR_OF(create_qp_in, *in, pas));
946 err = mlx5_db_alloc(dev->mdev, &qp->db);
948 mlx5_ib_dbg(dev, "err %d\n", err);
952 qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL);
953 qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL);
954 qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL);
955 qp->sq.w_list = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.w_list), GFP_KERNEL);
956 qp->sq.wqe_head = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wqe_head), GFP_KERNEL);
958 if (!qp->sq.wrid || !qp->sq.wr_data || !qp->rq.wrid ||
959 !qp->sq.w_list || !qp->sq.wqe_head) {
963 qp->create_type = MLX5_QP_KERNEL;
968 mlx5_db_free(dev->mdev, &qp->db);
969 kfree(qp->sq.wqe_head);
970 kfree(qp->sq.w_list);
972 kfree(qp->sq.wr_data);
979 mlx5_buf_free(dev->mdev, &qp->buf);
982 free_uuar(&dev->mdev->priv.uuari, uuarn);
986 static void destroy_qp_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
988 mlx5_db_free(dev->mdev, &qp->db);
989 kfree(qp->sq.wqe_head);
990 kfree(qp->sq.w_list);
992 kfree(qp->sq.wr_data);
994 mlx5_buf_free(dev->mdev, &qp->buf);
995 free_uuar(&dev->mdev->priv.uuari, qp->bf->uuarn);
998 static u32 get_rx_type(struct mlx5_ib_qp *qp, struct ib_qp_init_attr *attr)
1000 if (attr->srq || (attr->qp_type == IB_QPT_XRC_TGT) ||
1001 (attr->qp_type == IB_QPT_XRC_INI))
1003 else if (!qp->has_rq)
1004 return MLX5_ZERO_LEN_RQ;
1006 return MLX5_NON_ZERO_RQ;
1009 static int is_connected(enum ib_qp_type qp_type)
1011 if (qp_type == IB_QPT_RC || qp_type == IB_QPT_UC)
1017 static int create_raw_packet_qp_tis(struct mlx5_ib_dev *dev,
1018 struct mlx5_ib_sq *sq, u32 tdn)
1020 u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {0};
1021 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1023 MLX5_SET(tisc, tisc, transport_domain, tdn);
1024 return mlx5_core_create_tis(dev->mdev, in, sizeof(in), &sq->tisn);
1027 static void destroy_raw_packet_qp_tis(struct mlx5_ib_dev *dev,
1028 struct mlx5_ib_sq *sq)
1030 mlx5_core_destroy_tis(dev->mdev, sq->tisn);
1033 static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
1034 struct mlx5_ib_sq *sq, void *qpin,
1037 struct mlx5_ib_ubuffer *ubuffer = &sq->ubuffer;
1041 void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc);
1050 err = mlx5_ib_umem_get(dev, pd, ubuffer->buf_addr, ubuffer->buf_size,
1051 &sq->ubuffer.umem, &npages, &page_shift,
1056 inlen = MLX5_ST_SZ_BYTES(create_sq_in) + sizeof(u64) * ncont;
1057 in = mlx5_vzalloc(inlen);
1063 sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1064 MLX5_SET(sqc, sqc, flush_in_error_en, 1);
1065 MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
1066 MLX5_SET(sqc, sqc, user_index, MLX5_GET(qpc, qpc, user_index));
1067 MLX5_SET(sqc, sqc, cqn, MLX5_GET(qpc, qpc, cqn_snd));
1068 MLX5_SET(sqc, sqc, tis_lst_sz, 1);
1069 MLX5_SET(sqc, sqc, tis_num_0, sq->tisn);
1071 wq = MLX5_ADDR_OF(sqc, sqc, wq);
1072 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1073 MLX5_SET(wq, wq, pd, MLX5_GET(qpc, qpc, pd));
1074 MLX5_SET(wq, wq, uar_page, MLX5_GET(qpc, qpc, uar_page));
1075 MLX5_SET64(wq, wq, dbr_addr, MLX5_GET64(qpc, qpc, dbr_addr));
1076 MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1077 MLX5_SET(wq, wq, log_wq_sz, MLX5_GET(qpc, qpc, log_sq_size));
1078 MLX5_SET(wq, wq, log_wq_pg_sz, page_shift - MLX5_ADAPTER_PAGE_SHIFT);
1079 MLX5_SET(wq, wq, page_offset, offset);
1081 pas = (__be64 *)MLX5_ADDR_OF(wq, wq, pas);
1082 mlx5_ib_populate_pas(dev, sq->ubuffer.umem, page_shift, pas, 0);
1084 err = mlx5_core_create_sq_tracked(dev->mdev, in, inlen, &sq->base.mqp);
1094 ib_umem_release(sq->ubuffer.umem);
1095 sq->ubuffer.umem = NULL;
1100 static void destroy_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
1101 struct mlx5_ib_sq *sq)
1103 mlx5_core_destroy_sq_tracked(dev->mdev, &sq->base.mqp);
1104 ib_umem_release(sq->ubuffer.umem);
1107 static int get_rq_pas_size(void *qpc)
1109 u32 log_page_size = MLX5_GET(qpc, qpc, log_page_size) + 12;
1110 u32 log_rq_stride = MLX5_GET(qpc, qpc, log_rq_stride);
1111 u32 log_rq_size = MLX5_GET(qpc, qpc, log_rq_size);
1112 u32 page_offset = MLX5_GET(qpc, qpc, page_offset);
1113 u32 po_quanta = 1 << (log_page_size - 6);
1114 u32 rq_sz = 1 << (log_rq_size + 4 + log_rq_stride);
1115 u32 page_size = 1 << log_page_size;
1116 u32 rq_sz_po = rq_sz + (page_offset * po_quanta);
1117 u32 rq_num_pas = (rq_sz_po + page_size - 1) / page_size;
1119 return rq_num_pas * sizeof(u64);
1122 static int create_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
1123 struct mlx5_ib_rq *rq, void *qpin)
1125 struct mlx5_ib_qp *mqp = rq->base.container_mibqp;
1131 void *qpc = MLX5_ADDR_OF(create_qp_in, qpin, qpc);
1134 u32 rq_pas_size = get_rq_pas_size(qpc);
1136 inlen = MLX5_ST_SZ_BYTES(create_rq_in) + rq_pas_size;
1137 in = mlx5_vzalloc(inlen);
1141 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
1142 MLX5_SET(rqc, rqc, vsd, 1);
1143 MLX5_SET(rqc, rqc, mem_rq_type, MLX5_RQC_MEM_RQ_TYPE_MEMORY_RQ_INLINE);
1144 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
1145 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
1146 MLX5_SET(rqc, rqc, user_index, MLX5_GET(qpc, qpc, user_index));
1147 MLX5_SET(rqc, rqc, cqn, MLX5_GET(qpc, qpc, cqn_rcv));
1149 if (mqp->flags & MLX5_IB_QP_CAP_SCATTER_FCS)
1150 MLX5_SET(rqc, rqc, scatter_fcs, 1);
1152 wq = MLX5_ADDR_OF(rqc, rqc, wq);
1153 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1154 MLX5_SET(wq, wq, end_padding_mode,
1155 MLX5_GET(qpc, qpc, end_padding_mode));
1156 MLX5_SET(wq, wq, page_offset, MLX5_GET(qpc, qpc, page_offset));
1157 MLX5_SET(wq, wq, pd, MLX5_GET(qpc, qpc, pd));
1158 MLX5_SET64(wq, wq, dbr_addr, MLX5_GET64(qpc, qpc, dbr_addr));
1159 MLX5_SET(wq, wq, log_wq_stride, MLX5_GET(qpc, qpc, log_rq_stride) + 4);
1160 MLX5_SET(wq, wq, log_wq_pg_sz, MLX5_GET(qpc, qpc, log_page_size));
1161 MLX5_SET(wq, wq, log_wq_sz, MLX5_GET(qpc, qpc, log_rq_size));
1163 pas = (__be64 *)MLX5_ADDR_OF(wq, wq, pas);
1164 qp_pas = (__be64 *)MLX5_ADDR_OF(create_qp_in, qpin, pas);
1165 memcpy(pas, qp_pas, rq_pas_size);
1167 err = mlx5_core_create_rq_tracked(dev->mdev, in, inlen, &rq->base.mqp);
1174 static void destroy_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
1175 struct mlx5_ib_rq *rq)
1177 mlx5_core_destroy_rq_tracked(dev->mdev, &rq->base.mqp);
1180 static int create_raw_packet_qp_tir(struct mlx5_ib_dev *dev,
1181 struct mlx5_ib_rq *rq, u32 tdn)
1188 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1189 in = mlx5_vzalloc(inlen);
1193 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1194 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT);
1195 MLX5_SET(tirc, tirc, inline_rqn, rq->base.mqp.qpn);
1196 MLX5_SET(tirc, tirc, transport_domain, tdn);
1198 err = mlx5_core_create_tir(dev->mdev, in, inlen, &rq->tirn);
1205 static void destroy_raw_packet_qp_tir(struct mlx5_ib_dev *dev,
1206 struct mlx5_ib_rq *rq)
1208 mlx5_core_destroy_tir(dev->mdev, rq->tirn);
1211 static int create_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
1215 struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
1216 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
1217 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
1218 struct ib_uobject *uobj = pd->uobject;
1219 struct ib_ucontext *ucontext = uobj->context;
1220 struct mlx5_ib_ucontext *mucontext = to_mucontext(ucontext);
1222 u32 tdn = mucontext->tdn;
1224 if (qp->sq.wqe_cnt) {
1225 err = create_raw_packet_qp_tis(dev, sq, tdn);
1229 err = create_raw_packet_qp_sq(dev, sq, in, pd);
1231 goto err_destroy_tis;
1233 sq->base.container_mibqp = qp;
1236 if (qp->rq.wqe_cnt) {
1237 rq->base.container_mibqp = qp;
1239 err = create_raw_packet_qp_rq(dev, rq, in);
1241 goto err_destroy_sq;
1244 err = create_raw_packet_qp_tir(dev, rq, tdn);
1246 goto err_destroy_rq;
1249 qp->trans_qp.base.mqp.qpn = qp->sq.wqe_cnt ? sq->base.mqp.qpn :
1255 destroy_raw_packet_qp_rq(dev, rq);
1257 if (!qp->sq.wqe_cnt)
1259 destroy_raw_packet_qp_sq(dev, sq);
1261 destroy_raw_packet_qp_tis(dev, sq);
1266 static void destroy_raw_packet_qp(struct mlx5_ib_dev *dev,
1267 struct mlx5_ib_qp *qp)
1269 struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
1270 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
1271 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
1273 if (qp->rq.wqe_cnt) {
1274 destroy_raw_packet_qp_tir(dev, rq);
1275 destroy_raw_packet_qp_rq(dev, rq);
1278 if (qp->sq.wqe_cnt) {
1279 destroy_raw_packet_qp_sq(dev, sq);
1280 destroy_raw_packet_qp_tis(dev, sq);
1284 static void raw_packet_qp_copy_info(struct mlx5_ib_qp *qp,
1285 struct mlx5_ib_raw_packet_qp *raw_packet_qp)
1287 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
1288 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
1292 sq->doorbell = &qp->db;
1293 rq->doorbell = &qp->db;
1296 static void destroy_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
1298 mlx5_core_destroy_tir(dev->mdev, qp->rss_qp.tirn);
1301 static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
1303 struct ib_qp_init_attr *init_attr,
1304 struct ib_udata *udata)
1306 struct ib_uobject *uobj = pd->uobject;
1307 struct ib_ucontext *ucontext = uobj->context;
1308 struct mlx5_ib_ucontext *mucontext = to_mucontext(ucontext);
1309 struct mlx5_ib_create_qp_resp resp = {};
1315 u32 selected_fields = 0;
1316 size_t min_resp_len;
1317 u32 tdn = mucontext->tdn;
1318 struct mlx5_ib_create_qp_rss ucmd = {};
1319 size_t required_cmd_sz;
1321 if (init_attr->qp_type != IB_QPT_RAW_PACKET)
1324 if (init_attr->create_flags || init_attr->send_cq)
1327 min_resp_len = offsetof(typeof(resp), uuar_index) + sizeof(resp.uuar_index);
1328 if (udata->outlen < min_resp_len)
1331 required_cmd_sz = offsetof(typeof(ucmd), reserved1) + sizeof(ucmd.reserved1);
1332 if (udata->inlen < required_cmd_sz) {
1333 mlx5_ib_dbg(dev, "invalid inlen\n");
1337 if (udata->inlen > sizeof(ucmd) &&
1338 !ib_is_udata_cleared(udata, sizeof(ucmd),
1339 udata->inlen - sizeof(ucmd))) {
1340 mlx5_ib_dbg(dev, "inlen is not supported\n");
1344 if (ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen))) {
1345 mlx5_ib_dbg(dev, "copy failed\n");
1349 if (ucmd.comp_mask) {
1350 mlx5_ib_dbg(dev, "invalid comp mask\n");
1354 if (memchr_inv(ucmd.reserved, 0, sizeof(ucmd.reserved)) || ucmd.reserved1) {
1355 mlx5_ib_dbg(dev, "invalid reserved\n");
1359 err = ib_copy_to_udata(udata, &resp, min_resp_len);
1361 mlx5_ib_dbg(dev, "copy failed\n");
1365 inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1366 in = mlx5_vzalloc(inlen);
1370 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1371 MLX5_SET(tirc, tirc, disp_type,
1372 MLX5_TIRC_DISP_TYPE_INDIRECT);
1373 MLX5_SET(tirc, tirc, indirect_table,
1374 init_attr->rwq_ind_tbl->ind_tbl_num);
1375 MLX5_SET(tirc, tirc, transport_domain, tdn);
1377 hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
1378 switch (ucmd.rx_hash_function) {
1379 case MLX5_RX_HASH_FUNC_TOEPLITZ:
1381 void *rss_key = MLX5_ADDR_OF(tirc, tirc, rx_hash_toeplitz_key);
1382 size_t len = MLX5_FLD_SZ_BYTES(tirc, rx_hash_toeplitz_key);
1384 if (len != ucmd.rx_key_len) {
1389 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_TOEPLITZ);
1390 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1391 memcpy(rss_key, ucmd.rx_hash_key, len);
1399 if (!ucmd.rx_hash_fields_mask) {
1400 /* special case when this TIR serves as steering entry without hashing */
1401 if (!init_attr->rwq_ind_tbl->log_ind_tbl_size)
1407 if (((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_IPV4) ||
1408 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_IPV4)) &&
1409 ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_IPV6) ||
1410 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_IPV6))) {
1415 /* If none of IPV4 & IPV6 SRC/DST was set - this bit field is ignored */
1416 if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_IPV4) ||
1417 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_IPV4))
1418 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1419 MLX5_L3_PROT_TYPE_IPV4);
1420 else if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_IPV6) ||
1421 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_IPV6))
1422 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1423 MLX5_L3_PROT_TYPE_IPV6);
1425 if (((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_TCP) ||
1426 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_TCP)) &&
1427 ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_UDP) ||
1428 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_UDP))) {
1433 /* If none of TCP & UDP SRC/DST was set - this bit field is ignored */
1434 if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_TCP) ||
1435 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_TCP))
1436 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1437 MLX5_L4_PROT_TYPE_TCP);
1438 else if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_UDP) ||
1439 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_UDP))
1440 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1441 MLX5_L4_PROT_TYPE_UDP);
1443 if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_IPV4) ||
1444 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_IPV6))
1445 selected_fields |= MLX5_HASH_FIELD_SEL_SRC_IP;
1447 if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_IPV4) ||
1448 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_IPV6))
1449 selected_fields |= MLX5_HASH_FIELD_SEL_DST_IP;
1451 if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_TCP) ||
1452 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_SRC_PORT_UDP))
1453 selected_fields |= MLX5_HASH_FIELD_SEL_L4_SPORT;
1455 if ((ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_TCP) ||
1456 (ucmd.rx_hash_fields_mask & MLX5_RX_HASH_DST_PORT_UDP))
1457 selected_fields |= MLX5_HASH_FIELD_SEL_L4_DPORT;
1459 MLX5_SET(rx_hash_field_select, hfso, selected_fields, selected_fields);
1462 err = mlx5_core_create_tir(dev->mdev, in, inlen, &qp->rss_qp.tirn);
1468 /* qpn is reserved for that QP */
1469 qp->trans_qp.base.mqp.qpn = 0;
1477 static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
1478 struct ib_qp_init_attr *init_attr,
1479 struct ib_udata *udata, struct mlx5_ib_qp *qp)
1481 struct mlx5_ib_resources *devr = &dev->devr;
1482 int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
1483 struct mlx5_core_dev *mdev = dev->mdev;
1484 struct mlx5_ib_create_qp_resp resp;
1485 struct mlx5_ib_cq *send_cq;
1486 struct mlx5_ib_cq *recv_cq;
1487 unsigned long flags;
1488 u32 uidx = MLX5_IB_DEFAULT_UIDX;
1489 struct mlx5_ib_create_qp ucmd;
1490 struct mlx5_ib_qp_base *base;
1495 base = init_attr->qp_type == IB_QPT_RAW_PACKET ?
1496 &qp->raw_packet_qp.rq.base :
1499 if (init_attr->qp_type != IB_QPT_RAW_PACKET)
1500 mlx5_ib_odp_create_qp(qp);
1502 mutex_init(&qp->mutex);
1503 spin_lock_init(&qp->sq.lock);
1504 spin_lock_init(&qp->rq.lock);
1506 if (init_attr->rwq_ind_tbl) {
1510 err = create_rss_raw_qp_tir(dev, qp, pd, init_attr, udata);
1514 if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) {
1515 if (!MLX5_CAP_GEN(mdev, block_lb_mc)) {
1516 mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n");
1519 qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK;
1523 if (init_attr->create_flags &
1524 (IB_QP_CREATE_CROSS_CHANNEL |
1525 IB_QP_CREATE_MANAGED_SEND |
1526 IB_QP_CREATE_MANAGED_RECV)) {
1527 if (!MLX5_CAP_GEN(mdev, cd)) {
1528 mlx5_ib_dbg(dev, "cross-channel isn't supported\n");
1531 if (init_attr->create_flags & IB_QP_CREATE_CROSS_CHANNEL)
1532 qp->flags |= MLX5_IB_QP_CROSS_CHANNEL;
1533 if (init_attr->create_flags & IB_QP_CREATE_MANAGED_SEND)
1534 qp->flags |= MLX5_IB_QP_MANAGED_SEND;
1535 if (init_attr->create_flags & IB_QP_CREATE_MANAGED_RECV)
1536 qp->flags |= MLX5_IB_QP_MANAGED_RECV;
1539 if (init_attr->qp_type == IB_QPT_UD &&
1540 (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO))
1541 if (!MLX5_CAP_GEN(mdev, ipoib_basic_offloads)) {
1542 mlx5_ib_dbg(dev, "ipoib UD lso qp isn't supported\n");
1546 if (init_attr->create_flags & IB_QP_CREATE_SCATTER_FCS) {
1547 if (init_attr->qp_type != IB_QPT_RAW_PACKET) {
1548 mlx5_ib_dbg(dev, "Scatter FCS is supported only for Raw Packet QPs");
1551 if (!MLX5_CAP_GEN(dev->mdev, eth_net_offloads) ||
1552 !MLX5_CAP_ETH(dev->mdev, scatter_fcs)) {
1553 mlx5_ib_dbg(dev, "Scatter FCS isn't supported\n");
1556 qp->flags |= MLX5_IB_QP_CAP_SCATTER_FCS;
1559 if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
1560 qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE;
1562 if (pd && pd->uobject) {
1563 if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) {
1564 mlx5_ib_dbg(dev, "copy failed\n");
1568 err = get_qp_user_index(to_mucontext(pd->uobject->context),
1569 &ucmd, udata->inlen, &uidx);
1573 qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE);
1574 qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE);
1576 qp->wq_sig = !!wq_signature;
1579 qp->has_rq = qp_has_rq(init_attr);
1580 err = set_rq_size(dev, &init_attr->cap, qp->has_rq,
1581 qp, (pd && pd->uobject) ? &ucmd : NULL);
1583 mlx5_ib_dbg(dev, "err %d\n", err);
1590 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
1591 mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count);
1592 if (ucmd.rq_wqe_shift != qp->rq.wqe_shift ||
1593 ucmd.rq_wqe_count != qp->rq.wqe_cnt) {
1594 mlx5_ib_dbg(dev, "invalid rq params\n");
1597 if (ucmd.sq_wqe_count > max_wqes) {
1598 mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n",
1599 ucmd.sq_wqe_count, max_wqes);
1602 if (init_attr->create_flags &
1603 mlx5_ib_create_qp_sqpn_qp1()) {
1604 mlx5_ib_dbg(dev, "user-space is not allowed to create UD QPs spoofing as QP1\n");
1607 err = create_user_qp(dev, pd, qp, udata, init_attr, &in,
1608 &resp, &inlen, base);
1610 mlx5_ib_dbg(dev, "err %d\n", err);
1612 err = create_kernel_qp(dev, init_attr, qp, &in, &inlen,
1615 mlx5_ib_dbg(dev, "err %d\n", err);
1621 in = mlx5_vzalloc(inlen);
1625 qp->create_type = MLX5_QP_EMPTY;
1628 if (is_sqp(init_attr->qp_type))
1629 qp->port = init_attr->port_num;
1631 qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
1633 MLX5_SET(qpc, qpc, st, to_mlx5_st(init_attr->qp_type));
1634 MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
1636 if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR)
1637 MLX5_SET(qpc, qpc, pd, to_mpd(pd ? pd : devr->p0)->pdn);
1639 MLX5_SET(qpc, qpc, latency_sensitive, 1);
1643 MLX5_SET(qpc, qpc, wq_signature, 1);
1645 if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK)
1646 MLX5_SET(qpc, qpc, block_lb_mc, 1);
1648 if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL)
1649 MLX5_SET(qpc, qpc, cd_master, 1);
1650 if (qp->flags & MLX5_IB_QP_MANAGED_SEND)
1651 MLX5_SET(qpc, qpc, cd_slave_send, 1);
1652 if (qp->flags & MLX5_IB_QP_MANAGED_RECV)
1653 MLX5_SET(qpc, qpc, cd_slave_receive, 1);
1655 if (qp->scat_cqe && is_connected(init_attr->qp_type)) {
1659 rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq);
1660 scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq);
1663 MLX5_SET(qpc, qpc, cs_res, MLX5_RES_SCAT_DATA64_CQE);
1665 MLX5_SET(qpc, qpc, cs_res, MLX5_RES_SCAT_DATA32_CQE);
1667 if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) {
1669 MLX5_SET(qpc, qpc, cs_req, MLX5_REQ_SCAT_DATA64_CQE);
1671 MLX5_SET(qpc, qpc, cs_req, MLX5_REQ_SCAT_DATA32_CQE);
1675 if (qp->rq.wqe_cnt) {
1676 MLX5_SET(qpc, qpc, log_rq_stride, qp->rq.wqe_shift - 4);
1677 MLX5_SET(qpc, qpc, log_rq_size, ilog2(qp->rq.wqe_cnt));
1680 MLX5_SET(qpc, qpc, rq_type, get_rx_type(qp, init_attr));
1683 MLX5_SET(qpc, qpc, log_sq_size, ilog2(qp->sq.wqe_cnt));
1685 MLX5_SET(qpc, qpc, no_sq, 1);
1687 /* Set default resources */
1688 switch (init_attr->qp_type) {
1689 case IB_QPT_XRC_TGT:
1690 MLX5_SET(qpc, qpc, cqn_rcv, to_mcq(devr->c0)->mcq.cqn);
1691 MLX5_SET(qpc, qpc, cqn_snd, to_mcq(devr->c0)->mcq.cqn);
1692 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(devr->s0)->msrq.srqn);
1693 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(init_attr->xrcd)->xrcdn);
1695 case IB_QPT_XRC_INI:
1696 MLX5_SET(qpc, qpc, cqn_rcv, to_mcq(devr->c0)->mcq.cqn);
1697 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(devr->x1)->xrcdn);
1698 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(devr->s0)->msrq.srqn);
1701 if (init_attr->srq) {
1702 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(devr->x0)->xrcdn);
1703 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(init_attr->srq)->msrq.srqn);
1705 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(devr->x1)->xrcdn);
1706 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(devr->s1)->msrq.srqn);
1710 if (init_attr->send_cq)
1711 MLX5_SET(qpc, qpc, cqn_snd, to_mcq(init_attr->send_cq)->mcq.cqn);
1713 if (init_attr->recv_cq)
1714 MLX5_SET(qpc, qpc, cqn_rcv, to_mcq(init_attr->recv_cq)->mcq.cqn);
1716 MLX5_SET64(qpc, qpc, dbr_addr, qp->db.dma);
1718 /* 0xffffff means we ask to work with cqe version 0 */
1719 if (MLX5_CAP_GEN(mdev, cqe_version) == MLX5_CQE_VERSION_V1)
1720 MLX5_SET(qpc, qpc, user_index, uidx);
1722 /* we use IB_QP_CREATE_IPOIB_UD_LSO to indicates ipoib qp */
1723 if (init_attr->qp_type == IB_QPT_UD &&
1724 (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO)) {
1725 MLX5_SET(qpc, qpc, ulp_stateless_offload_mode, 1);
1726 qp->flags |= MLX5_IB_QP_LSO;
1729 if (init_attr->qp_type == IB_QPT_RAW_PACKET) {
1730 qp->raw_packet_qp.sq.ubuffer.buf_addr = ucmd.sq_buf_addr;
1731 raw_packet_qp_copy_info(qp, &qp->raw_packet_qp);
1732 err = create_raw_packet_qp(dev, qp, in, pd);
1734 err = mlx5_core_create_qp(dev->mdev, &base->mqp, in, inlen);
1738 mlx5_ib_dbg(dev, "create qp failed\n");
1744 base->container_mibqp = qp;
1745 base->mqp.event = mlx5_ib_qp_event;
1747 get_cqs(init_attr->qp_type, init_attr->send_cq, init_attr->recv_cq,
1748 &send_cq, &recv_cq);
1749 spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
1750 mlx5_ib_lock_cqs(send_cq, recv_cq);
1751 /* Maintain device to QPs access, needed for further handling via reset
1754 list_add_tail(&qp->qps_list, &dev->qp_list);
1755 /* Maintain CQ to QPs access, needed for further handling via reset flow
1758 list_add_tail(&qp->cq_send_list, &send_cq->list_send_qp);
1760 list_add_tail(&qp->cq_recv_list, &recv_cq->list_recv_qp);
1761 mlx5_ib_unlock_cqs(send_cq, recv_cq);
1762 spin_unlock_irqrestore(&dev->reset_flow_resource_lock, flags);
1767 if (qp->create_type == MLX5_QP_USER)
1768 destroy_qp_user(pd, qp, base);
1769 else if (qp->create_type == MLX5_QP_KERNEL)
1770 destroy_qp_kernel(dev, qp);
1776 static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq)
1777 __acquires(&send_cq->lock) __acquires(&recv_cq->lock)
1781 if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
1782 spin_lock(&send_cq->lock);
1783 spin_lock_nested(&recv_cq->lock,
1784 SINGLE_DEPTH_NESTING);
1785 } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) {
1786 spin_lock(&send_cq->lock);
1787 __acquire(&recv_cq->lock);
1789 spin_lock(&recv_cq->lock);
1790 spin_lock_nested(&send_cq->lock,
1791 SINGLE_DEPTH_NESTING);
1794 spin_lock(&send_cq->lock);
1795 __acquire(&recv_cq->lock);
1797 } else if (recv_cq) {
1798 spin_lock(&recv_cq->lock);
1799 __acquire(&send_cq->lock);
1801 __acquire(&send_cq->lock);
1802 __acquire(&recv_cq->lock);
1806 static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq)
1807 __releases(&send_cq->lock) __releases(&recv_cq->lock)
1811 if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
1812 spin_unlock(&recv_cq->lock);
1813 spin_unlock(&send_cq->lock);
1814 } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) {
1815 __release(&recv_cq->lock);
1816 spin_unlock(&send_cq->lock);
1818 spin_unlock(&send_cq->lock);
1819 spin_unlock(&recv_cq->lock);
1822 __release(&recv_cq->lock);
1823 spin_unlock(&send_cq->lock);
1825 } else if (recv_cq) {
1826 __release(&send_cq->lock);
1827 spin_unlock(&recv_cq->lock);
1829 __release(&recv_cq->lock);
1830 __release(&send_cq->lock);
1834 static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp)
1836 return to_mpd(qp->ibqp.pd);
1839 static void get_cqs(enum ib_qp_type qp_type,
1840 struct ib_cq *ib_send_cq, struct ib_cq *ib_recv_cq,
1841 struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq)
1844 case IB_QPT_XRC_TGT:
1848 case MLX5_IB_QPT_REG_UMR:
1849 case IB_QPT_XRC_INI:
1850 *send_cq = ib_send_cq ? to_mcq(ib_send_cq) : NULL;
1855 case MLX5_IB_QPT_HW_GSI:
1859 case IB_QPT_RAW_IPV6:
1860 case IB_QPT_RAW_ETHERTYPE:
1861 case IB_QPT_RAW_PACKET:
1862 *send_cq = ib_send_cq ? to_mcq(ib_send_cq) : NULL;
1863 *recv_cq = ib_recv_cq ? to_mcq(ib_recv_cq) : NULL;
1874 static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
1875 const struct mlx5_modify_raw_qp_param *raw_qp_param,
1876 u8 lag_tx_affinity);
1878 static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
1880 struct mlx5_ib_cq *send_cq, *recv_cq;
1881 struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
1882 unsigned long flags;
1885 if (qp->ibqp.rwq_ind_tbl) {
1886 destroy_rss_raw_qp_tir(dev, qp);
1890 base = qp->ibqp.qp_type == IB_QPT_RAW_PACKET ?
1891 &qp->raw_packet_qp.rq.base :
1894 if (qp->state != IB_QPS_RESET) {
1895 if (qp->ibqp.qp_type != IB_QPT_RAW_PACKET) {
1896 mlx5_ib_qp_disable_pagefaults(qp);
1897 err = mlx5_core_qp_modify(dev->mdev,
1898 MLX5_CMD_OP_2RST_QP, 0,
1901 struct mlx5_modify_raw_qp_param raw_qp_param = {
1902 .operation = MLX5_CMD_OP_2RST_QP
1905 err = modify_raw_packet_qp(dev, qp, &raw_qp_param, 0);
1908 mlx5_ib_warn(dev, "mlx5_ib: modify QP 0x%06x to RESET failed\n",
1912 get_cqs(qp->ibqp.qp_type, qp->ibqp.send_cq, qp->ibqp.recv_cq,
1913 &send_cq, &recv_cq);
1915 spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
1916 mlx5_ib_lock_cqs(send_cq, recv_cq);
1917 /* del from lists under both locks above to protect reset flow paths */
1918 list_del(&qp->qps_list);
1920 list_del(&qp->cq_send_list);
1923 list_del(&qp->cq_recv_list);
1925 if (qp->create_type == MLX5_QP_KERNEL) {
1926 __mlx5_ib_cq_clean(recv_cq, base->mqp.qpn,
1927 qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
1928 if (send_cq != recv_cq)
1929 __mlx5_ib_cq_clean(send_cq, base->mqp.qpn,
1932 mlx5_ib_unlock_cqs(send_cq, recv_cq);
1933 spin_unlock_irqrestore(&dev->reset_flow_resource_lock, flags);
1935 if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
1936 destroy_raw_packet_qp(dev, qp);
1938 err = mlx5_core_destroy_qp(dev->mdev, &base->mqp);
1940 mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n",
1944 if (qp->create_type == MLX5_QP_KERNEL)
1945 destroy_qp_kernel(dev, qp);
1946 else if (qp->create_type == MLX5_QP_USER)
1947 destroy_qp_user(&get_pd(qp)->ibpd, qp, base);
1950 static const char *ib_qp_type_str(enum ib_qp_type type)
1954 return "IB_QPT_SMI";
1956 return "IB_QPT_GSI";
1963 case IB_QPT_RAW_IPV6:
1964 return "IB_QPT_RAW_IPV6";
1965 case IB_QPT_RAW_ETHERTYPE:
1966 return "IB_QPT_RAW_ETHERTYPE";
1967 case IB_QPT_XRC_INI:
1968 return "IB_QPT_XRC_INI";
1969 case IB_QPT_XRC_TGT:
1970 return "IB_QPT_XRC_TGT";
1971 case IB_QPT_RAW_PACKET:
1972 return "IB_QPT_RAW_PACKET";
1973 case MLX5_IB_QPT_REG_UMR:
1974 return "MLX5_IB_QPT_REG_UMR";
1977 return "Invalid QP type";
1981 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
1982 struct ib_qp_init_attr *init_attr,
1983 struct ib_udata *udata)
1985 struct mlx5_ib_dev *dev;
1986 struct mlx5_ib_qp *qp;
1991 dev = to_mdev(pd->device);
1993 if (init_attr->qp_type == IB_QPT_RAW_PACKET) {
1995 mlx5_ib_dbg(dev, "Raw Packet QP is not supported for kernel consumers\n");
1996 return ERR_PTR(-EINVAL);
1997 } else if (!to_mucontext(pd->uobject->context)->cqe_version) {
1998 mlx5_ib_dbg(dev, "Raw Packet QP is only supported for CQE version > 0\n");
1999 return ERR_PTR(-EINVAL);
2003 /* being cautious here */
2004 if (init_attr->qp_type != IB_QPT_XRC_TGT &&
2005 init_attr->qp_type != MLX5_IB_QPT_REG_UMR) {
2006 pr_warn("%s: no PD for transport %s\n", __func__,
2007 ib_qp_type_str(init_attr->qp_type));
2008 return ERR_PTR(-EINVAL);
2010 dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device);
2013 switch (init_attr->qp_type) {
2014 case IB_QPT_XRC_TGT:
2015 case IB_QPT_XRC_INI:
2016 if (!MLX5_CAP_GEN(dev->mdev, xrc)) {
2017 mlx5_ib_dbg(dev, "XRC not supported\n");
2018 return ERR_PTR(-ENOSYS);
2020 init_attr->recv_cq = NULL;
2021 if (init_attr->qp_type == IB_QPT_XRC_TGT) {
2022 xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn;
2023 init_attr->send_cq = NULL;
2027 case IB_QPT_RAW_PACKET:
2032 case MLX5_IB_QPT_HW_GSI:
2033 case MLX5_IB_QPT_REG_UMR:
2034 qp = kzalloc(sizeof(*qp), GFP_KERNEL);
2036 return ERR_PTR(-ENOMEM);
2038 err = create_qp_common(dev, pd, init_attr, udata, qp);
2040 mlx5_ib_dbg(dev, "create_qp_common failed\n");
2042 return ERR_PTR(err);
2045 if (is_qp0(init_attr->qp_type))
2046 qp->ibqp.qp_num = 0;
2047 else if (is_qp1(init_attr->qp_type))
2048 qp->ibqp.qp_num = 1;
2050 qp->ibqp.qp_num = qp->trans_qp.base.mqp.qpn;
2052 mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n",
2053 qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn,
2054 to_mcq(init_attr->recv_cq)->mcq.cqn,
2055 to_mcq(init_attr->send_cq)->mcq.cqn);
2057 qp->trans_qp.xrcdn = xrcdn;
2062 return mlx5_ib_gsi_create_qp(pd, init_attr);
2064 case IB_QPT_RAW_IPV6:
2065 case IB_QPT_RAW_ETHERTYPE:
2068 mlx5_ib_dbg(dev, "unsupported qp type %d\n",
2069 init_attr->qp_type);
2070 /* Don't support raw QPs */
2071 return ERR_PTR(-EINVAL);
2077 int mlx5_ib_destroy_qp(struct ib_qp *qp)
2079 struct mlx5_ib_dev *dev = to_mdev(qp->device);
2080 struct mlx5_ib_qp *mqp = to_mqp(qp);
2082 if (unlikely(qp->qp_type == IB_QPT_GSI))
2083 return mlx5_ib_gsi_destroy_qp(qp);
2085 destroy_qp_common(dev, mqp);
2092 static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr,
2095 u32 hw_access_flags = 0;
2099 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
2100 dest_rd_atomic = attr->max_dest_rd_atomic;
2102 dest_rd_atomic = qp->trans_qp.resp_depth;
2104 if (attr_mask & IB_QP_ACCESS_FLAGS)
2105 access_flags = attr->qp_access_flags;
2107 access_flags = qp->trans_qp.atomic_rd_en;
2109 if (!dest_rd_atomic)
2110 access_flags &= IB_ACCESS_REMOTE_WRITE;
2112 if (access_flags & IB_ACCESS_REMOTE_READ)
2113 hw_access_flags |= MLX5_QP_BIT_RRE;
2114 if (access_flags & IB_ACCESS_REMOTE_ATOMIC)
2115 hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX);
2116 if (access_flags & IB_ACCESS_REMOTE_WRITE)
2117 hw_access_flags |= MLX5_QP_BIT_RWE;
2119 return cpu_to_be32(hw_access_flags);
2123 MLX5_PATH_FLAG_FL = 1 << 0,
2124 MLX5_PATH_FLAG_FREE_AR = 1 << 1,
2125 MLX5_PATH_FLAG_COUNTER = 1 << 2,
2128 static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate)
2130 if (rate == IB_RATE_PORT_CURRENT) {
2132 } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) {
2135 while (rate != IB_RATE_2_5_GBPS &&
2136 !(1 << (rate + MLX5_STAT_RATE_OFFSET) &
2137 MLX5_CAP_GEN(dev->mdev, stat_rate_support)))
2141 return rate + MLX5_STAT_RATE_OFFSET;
2144 static int modify_raw_packet_eth_prio(struct mlx5_core_dev *dev,
2145 struct mlx5_ib_sq *sq, u8 sl)
2152 inlen = MLX5_ST_SZ_BYTES(modify_tis_in);
2153 in = mlx5_vzalloc(inlen);
2157 MLX5_SET(modify_tis_in, in, bitmask.prio, 1);
2159 tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx);
2160 MLX5_SET(tisc, tisc, prio, ((sl & 0x7) << 1));
2162 err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen);
2169 static int modify_raw_packet_tx_affinity(struct mlx5_core_dev *dev,
2170 struct mlx5_ib_sq *sq, u8 tx_affinity)
2177 inlen = MLX5_ST_SZ_BYTES(modify_tis_in);
2178 in = mlx5_vzalloc(inlen);
2182 MLX5_SET(modify_tis_in, in, bitmask.lag_tx_port_affinity, 1);
2184 tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx);
2185 MLX5_SET(tisc, tisc, lag_tx_port_affinity, tx_affinity);
2187 err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen);
2194 static int mlx5_set_path(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
2195 const struct ib_ah_attr *ah,
2196 struct mlx5_qp_path *path, u8 port, int attr_mask,
2197 u32 path_flags, const struct ib_qp_attr *attr,
2200 enum rdma_link_layer ll = rdma_port_get_link_layer(&dev->ib_dev, port);
2203 if (attr_mask & IB_QP_PKEY_INDEX)
2204 path->pkey_index = cpu_to_be16(alt ? attr->alt_pkey_index :
2207 if (ah->ah_flags & IB_AH_GRH) {
2208 if (ah->grh.sgid_index >=
2209 dev->mdev->port_caps[port - 1].gid_table_len) {
2210 pr_err("sgid_index (%u) too large. max is %d\n",
2212 dev->mdev->port_caps[port - 1].gid_table_len);
2217 if (ll == IB_LINK_LAYER_ETHERNET) {
2218 if (!(ah->ah_flags & IB_AH_GRH))
2220 memcpy(path->rmac, ah->dmac, sizeof(ah->dmac));
2221 path->udp_sport = mlx5_get_roce_udp_sport(dev, port,
2222 ah->grh.sgid_index);
2223 path->dci_cfi_prio_sl = (ah->sl & 0x7) << 4;
2225 path->fl_free_ar = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0;
2227 (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x40 : 0;
2228 path->rlid = cpu_to_be16(ah->dlid);
2229 path->grh_mlid = ah->src_path_bits & 0x7f;
2230 if (ah->ah_flags & IB_AH_GRH)
2231 path->grh_mlid |= 1 << 7;
2232 path->dci_cfi_prio_sl = ah->sl & 0xf;
2235 if (ah->ah_flags & IB_AH_GRH) {
2236 path->mgid_index = ah->grh.sgid_index;
2237 path->hop_limit = ah->grh.hop_limit;
2238 path->tclass_flowlabel =
2239 cpu_to_be32((ah->grh.traffic_class << 20) |
2240 (ah->grh.flow_label));
2241 memcpy(path->rgid, ah->grh.dgid.raw, 16);
2244 err = ib_rate_to_mlx5(dev, ah->static_rate);
2247 path->static_rate = err;
2250 if (attr_mask & IB_QP_TIMEOUT)
2251 path->ackto_lt = (alt ? attr->alt_timeout : attr->timeout) << 3;
2253 if ((qp->ibqp.qp_type == IB_QPT_RAW_PACKET) && qp->sq.wqe_cnt)
2254 return modify_raw_packet_eth_prio(dev->mdev,
2255 &qp->raw_packet_qp.sq,
2261 static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = {
2262 [MLX5_QP_STATE_INIT] = {
2263 [MLX5_QP_STATE_INIT] = {
2264 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE |
2265 MLX5_QP_OPTPAR_RAE |
2266 MLX5_QP_OPTPAR_RWE |
2267 MLX5_QP_OPTPAR_PKEY_INDEX |
2268 MLX5_QP_OPTPAR_PRI_PORT,
2269 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE |
2270 MLX5_QP_OPTPAR_PKEY_INDEX |
2271 MLX5_QP_OPTPAR_PRI_PORT,
2272 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX |
2273 MLX5_QP_OPTPAR_Q_KEY |
2274 MLX5_QP_OPTPAR_PRI_PORT,
2276 [MLX5_QP_STATE_RTR] = {
2277 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2278 MLX5_QP_OPTPAR_RRE |
2279 MLX5_QP_OPTPAR_RAE |
2280 MLX5_QP_OPTPAR_RWE |
2281 MLX5_QP_OPTPAR_PKEY_INDEX,
2282 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2283 MLX5_QP_OPTPAR_RWE |
2284 MLX5_QP_OPTPAR_PKEY_INDEX,
2285 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX |
2286 MLX5_QP_OPTPAR_Q_KEY,
2287 [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX |
2288 MLX5_QP_OPTPAR_Q_KEY,
2289 [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2290 MLX5_QP_OPTPAR_RRE |
2291 MLX5_QP_OPTPAR_RAE |
2292 MLX5_QP_OPTPAR_RWE |
2293 MLX5_QP_OPTPAR_PKEY_INDEX,
2296 [MLX5_QP_STATE_RTR] = {
2297 [MLX5_QP_STATE_RTS] = {
2298 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2299 MLX5_QP_OPTPAR_RRE |
2300 MLX5_QP_OPTPAR_RAE |
2301 MLX5_QP_OPTPAR_RWE |
2302 MLX5_QP_OPTPAR_PM_STATE |
2303 MLX5_QP_OPTPAR_RNR_TIMEOUT,
2304 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2305 MLX5_QP_OPTPAR_RWE |
2306 MLX5_QP_OPTPAR_PM_STATE,
2307 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY,
2310 [MLX5_QP_STATE_RTS] = {
2311 [MLX5_QP_STATE_RTS] = {
2312 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE |
2313 MLX5_QP_OPTPAR_RAE |
2314 MLX5_QP_OPTPAR_RWE |
2315 MLX5_QP_OPTPAR_RNR_TIMEOUT |
2316 MLX5_QP_OPTPAR_PM_STATE |
2317 MLX5_QP_OPTPAR_ALT_ADDR_PATH,
2318 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE |
2319 MLX5_QP_OPTPAR_PM_STATE |
2320 MLX5_QP_OPTPAR_ALT_ADDR_PATH,
2321 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY |
2322 MLX5_QP_OPTPAR_SRQN |
2323 MLX5_QP_OPTPAR_CQN_RCV,
2326 [MLX5_QP_STATE_SQER] = {
2327 [MLX5_QP_STATE_RTS] = {
2328 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY,
2329 [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY,
2330 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE,
2331 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT |
2332 MLX5_QP_OPTPAR_RWE |
2333 MLX5_QP_OPTPAR_RAE |
2339 static int ib_nr_to_mlx5_nr(int ib_mask)
2344 case IB_QP_CUR_STATE:
2346 case IB_QP_EN_SQD_ASYNC_NOTIFY:
2348 case IB_QP_ACCESS_FLAGS:
2349 return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE |
2351 case IB_QP_PKEY_INDEX:
2352 return MLX5_QP_OPTPAR_PKEY_INDEX;
2354 return MLX5_QP_OPTPAR_PRI_PORT;
2356 return MLX5_QP_OPTPAR_Q_KEY;
2358 return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH |
2359 MLX5_QP_OPTPAR_PRI_PORT;
2360 case IB_QP_PATH_MTU:
2363 return MLX5_QP_OPTPAR_ACK_TIMEOUT;
2364 case IB_QP_RETRY_CNT:
2365 return MLX5_QP_OPTPAR_RETRY_COUNT;
2366 case IB_QP_RNR_RETRY:
2367 return MLX5_QP_OPTPAR_RNR_RETRY;
2370 case IB_QP_MAX_QP_RD_ATOMIC:
2371 return MLX5_QP_OPTPAR_SRA_MAX;
2372 case IB_QP_ALT_PATH:
2373 return MLX5_QP_OPTPAR_ALT_ADDR_PATH;
2374 case IB_QP_MIN_RNR_TIMER:
2375 return MLX5_QP_OPTPAR_RNR_TIMEOUT;
2378 case IB_QP_MAX_DEST_RD_ATOMIC:
2379 return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE |
2380 MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE;
2381 case IB_QP_PATH_MIG_STATE:
2382 return MLX5_QP_OPTPAR_PM_STATE;
2385 case IB_QP_DEST_QPN:
2391 static int ib_mask_to_mlx5_opt(int ib_mask)
2396 for (i = 0; i < 8 * sizeof(int); i++) {
2397 if ((1 << i) & ib_mask)
2398 result |= ib_nr_to_mlx5_nr(1 << i);
2404 static int modify_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
2405 struct mlx5_ib_rq *rq, int new_state,
2406 const struct mlx5_modify_raw_qp_param *raw_qp_param)
2413 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
2414 in = mlx5_vzalloc(inlen);
2418 MLX5_SET(modify_rq_in, in, rq_state, rq->state);
2420 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
2421 MLX5_SET(rqc, rqc, state, new_state);
2423 if (raw_qp_param->set_mask & MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID) {
2424 if (MLX5_CAP_GEN(dev->mdev, modify_rq_counter_set_id)) {
2425 MLX5_SET64(modify_rq_in, in, modify_bitmask,
2426 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_MODIFY_RQ_COUNTER_SET_ID);
2427 MLX5_SET(rqc, rqc, counter_set_id, raw_qp_param->rq_q_ctr_id);
2429 pr_info_once("%s: RAW PACKET QP counters are not supported on current FW\n",
2433 err = mlx5_core_modify_rq(dev->mdev, rq->base.mqp.qpn, in, inlen);
2437 rq->state = new_state;
2444 static int modify_raw_packet_qp_sq(struct mlx5_core_dev *dev,
2445 struct mlx5_ib_sq *sq, int new_state)
2452 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
2453 in = mlx5_vzalloc(inlen);
2457 MLX5_SET(modify_sq_in, in, sq_state, sq->state);
2459 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
2460 MLX5_SET(sqc, sqc, state, new_state);
2462 err = mlx5_core_modify_sq(dev, sq->base.mqp.qpn, in, inlen);
2466 sq->state = new_state;
2473 static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
2474 const struct mlx5_modify_raw_qp_param *raw_qp_param,
2477 struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
2478 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
2479 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
2484 switch (raw_qp_param->operation) {
2485 case MLX5_CMD_OP_RST2INIT_QP:
2486 rq_state = MLX5_RQC_STATE_RDY;
2487 sq_state = MLX5_SQC_STATE_RDY;
2489 case MLX5_CMD_OP_2ERR_QP:
2490 rq_state = MLX5_RQC_STATE_ERR;
2491 sq_state = MLX5_SQC_STATE_ERR;
2493 case MLX5_CMD_OP_2RST_QP:
2494 rq_state = MLX5_RQC_STATE_RST;
2495 sq_state = MLX5_SQC_STATE_RST;
2497 case MLX5_CMD_OP_INIT2INIT_QP:
2498 case MLX5_CMD_OP_INIT2RTR_QP:
2499 case MLX5_CMD_OP_RTR2RTS_QP:
2500 case MLX5_CMD_OP_RTS2RTS_QP:
2501 if (raw_qp_param->set_mask)
2510 if (qp->rq.wqe_cnt) {
2511 err = modify_raw_packet_qp_rq(dev, rq, rq_state, raw_qp_param);
2516 if (qp->sq.wqe_cnt) {
2518 err = modify_raw_packet_tx_affinity(dev->mdev, sq,
2524 return modify_raw_packet_qp_sq(dev->mdev, sq, sq_state);
2530 static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
2531 const struct ib_qp_attr *attr, int attr_mask,
2532 enum ib_qp_state cur_state, enum ib_qp_state new_state)
2534 static const u16 optab[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE] = {
2535 [MLX5_QP_STATE_RST] = {
2536 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2537 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2538 [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_RST2INIT_QP,
2540 [MLX5_QP_STATE_INIT] = {
2541 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2542 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2543 [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_INIT2INIT_QP,
2544 [MLX5_QP_STATE_RTR] = MLX5_CMD_OP_INIT2RTR_QP,
2546 [MLX5_QP_STATE_RTR] = {
2547 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2548 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2549 [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTR2RTS_QP,
2551 [MLX5_QP_STATE_RTS] = {
2552 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2553 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2554 [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTS2RTS_QP,
2556 [MLX5_QP_STATE_SQD] = {
2557 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2558 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2560 [MLX5_QP_STATE_SQER] = {
2561 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2562 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2563 [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_SQERR2RTS_QP,
2565 [MLX5_QP_STATE_ERR] = {
2566 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2567 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2571 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
2572 struct mlx5_ib_qp *qp = to_mqp(ibqp);
2573 struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
2574 struct mlx5_ib_cq *send_cq, *recv_cq;
2575 struct mlx5_qp_context *context;
2576 struct mlx5_ib_pd *pd;
2577 struct mlx5_ib_port *mibport = NULL;
2578 enum mlx5_qp_state mlx5_cur, mlx5_new;
2579 enum mlx5_qp_optpar optpar;
2586 context = kzalloc(sizeof(*context), GFP_KERNEL);
2590 err = to_mlx5_st(ibqp->qp_type);
2592 mlx5_ib_dbg(dev, "unsupported qp type %d\n", ibqp->qp_type);
2596 context->flags = cpu_to_be32(err << 16);
2598 if (!(attr_mask & IB_QP_PATH_MIG_STATE)) {
2599 context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
2601 switch (attr->path_mig_state) {
2602 case IB_MIG_MIGRATED:
2603 context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
2606 context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11);
2609 context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11);
2614 if ((cur_state == IB_QPS_RESET) && (new_state == IB_QPS_INIT)) {
2615 if ((ibqp->qp_type == IB_QPT_RC) ||
2616 (ibqp->qp_type == IB_QPT_UD &&
2617 !(qp->flags & MLX5_IB_QP_SQPN_QP1)) ||
2618 (ibqp->qp_type == IB_QPT_UC) ||
2619 (ibqp->qp_type == IB_QPT_RAW_PACKET) ||
2620 (ibqp->qp_type == IB_QPT_XRC_INI) ||
2621 (ibqp->qp_type == IB_QPT_XRC_TGT)) {
2622 if (mlx5_lag_is_active(dev->mdev)) {
2623 tx_affinity = (unsigned int)atomic_add_return(1,
2624 &dev->roce.next_port) %
2626 context->flags |= cpu_to_be32(tx_affinity << 24);
2631 if (is_sqp(ibqp->qp_type)) {
2632 context->mtu_msgmax = (IB_MTU_256 << 5) | 8;
2633 } else if (ibqp->qp_type == IB_QPT_UD ||
2634 ibqp->qp_type == MLX5_IB_QPT_REG_UMR) {
2635 context->mtu_msgmax = (IB_MTU_4096 << 5) | 12;
2636 } else if (attr_mask & IB_QP_PATH_MTU) {
2637 if (attr->path_mtu < IB_MTU_256 ||
2638 attr->path_mtu > IB_MTU_4096) {
2639 mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu);
2643 context->mtu_msgmax = (attr->path_mtu << 5) |
2644 (u8)MLX5_CAP_GEN(dev->mdev, log_max_msg);
2647 if (attr_mask & IB_QP_DEST_QPN)
2648 context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num);
2650 if (attr_mask & IB_QP_PKEY_INDEX)
2651 context->pri_path.pkey_index = cpu_to_be16(attr->pkey_index);
2653 /* todo implement counter_index functionality */
2655 if (is_sqp(ibqp->qp_type))
2656 context->pri_path.port = qp->port;
2658 if (attr_mask & IB_QP_PORT)
2659 context->pri_path.port = attr->port_num;
2661 if (attr_mask & IB_QP_AV) {
2662 err = mlx5_set_path(dev, qp, &attr->ah_attr, &context->pri_path,
2663 attr_mask & IB_QP_PORT ? attr->port_num : qp->port,
2664 attr_mask, 0, attr, false);
2669 if (attr_mask & IB_QP_TIMEOUT)
2670 context->pri_path.ackto_lt |= attr->timeout << 3;
2672 if (attr_mask & IB_QP_ALT_PATH) {
2673 err = mlx5_set_path(dev, qp, &attr->alt_ah_attr,
2676 attr_mask | IB_QP_PKEY_INDEX | IB_QP_TIMEOUT,
2683 get_cqs(qp->ibqp.qp_type, qp->ibqp.send_cq, qp->ibqp.recv_cq,
2684 &send_cq, &recv_cq);
2686 context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn);
2687 context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0;
2688 context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0;
2689 context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28);
2691 if (attr_mask & IB_QP_RNR_RETRY)
2692 context->params1 |= cpu_to_be32(attr->rnr_retry << 13);
2694 if (attr_mask & IB_QP_RETRY_CNT)
2695 context->params1 |= cpu_to_be32(attr->retry_cnt << 16);
2697 if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
2698 if (attr->max_rd_atomic)
2700 cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21);
2703 if (attr_mask & IB_QP_SQ_PSN)
2704 context->next_send_psn = cpu_to_be32(attr->sq_psn);
2706 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
2707 if (attr->max_dest_rd_atomic)
2709 cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21);
2712 if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC))
2713 context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask);
2715 if (attr_mask & IB_QP_MIN_RNR_TIMER)
2716 context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24);
2718 if (attr_mask & IB_QP_RQ_PSN)
2719 context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn);
2721 if (attr_mask & IB_QP_QKEY)
2722 context->qkey = cpu_to_be32(attr->qkey);
2724 if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
2725 context->db_rec_addr = cpu_to_be64(qp->db.dma);
2727 if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD &&
2728 attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify)
2733 if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
2734 u8 port_num = (attr_mask & IB_QP_PORT ? attr->port_num :
2736 mibport = &dev->port[port_num];
2737 context->qp_counter_set_usr_page |=
2738 cpu_to_be32((u32)(mibport->q_cnt_id) << 24);
2741 if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
2742 context->sq_crq_size |= cpu_to_be16(1 << 4);
2744 if (qp->flags & MLX5_IB_QP_SQPN_QP1)
2745 context->deth_sqpn = cpu_to_be32(1);
2747 mlx5_cur = to_mlx5_state(cur_state);
2748 mlx5_new = to_mlx5_state(new_state);
2749 mlx5_st = to_mlx5_st(ibqp->qp_type);
2753 /* If moving to a reset or error state, we must disable page faults on
2754 * this QP and flush all current page faults. Otherwise a stale page
2755 * fault may attempt to work on this QP after it is reset and moved
2756 * again to RTS, and may cause the driver and the device to get out of
2758 if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR &&
2759 (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR) &&
2760 (qp->ibqp.qp_type != IB_QPT_RAW_PACKET))
2761 mlx5_ib_qp_disable_pagefaults(qp);
2763 if (mlx5_cur >= MLX5_QP_NUM_STATE || mlx5_new >= MLX5_QP_NUM_STATE ||
2764 !optab[mlx5_cur][mlx5_new])
2767 op = optab[mlx5_cur][mlx5_new];
2768 optpar = ib_mask_to_mlx5_opt(attr_mask);
2769 optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st];
2771 if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
2772 struct mlx5_modify_raw_qp_param raw_qp_param = {};
2774 raw_qp_param.operation = op;
2775 if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
2776 raw_qp_param.rq_q_ctr_id = mibport->q_cnt_id;
2777 raw_qp_param.set_mask |= MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID;
2779 err = modify_raw_packet_qp(dev, qp, &raw_qp_param, tx_affinity);
2781 err = mlx5_core_qp_modify(dev->mdev, op, optpar, context,
2788 if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT &&
2789 (qp->ibqp.qp_type != IB_QPT_RAW_PACKET))
2790 mlx5_ib_qp_enable_pagefaults(qp);
2792 qp->state = new_state;
2794 if (attr_mask & IB_QP_ACCESS_FLAGS)
2795 qp->trans_qp.atomic_rd_en = attr->qp_access_flags;
2796 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
2797 qp->trans_qp.resp_depth = attr->max_dest_rd_atomic;
2798 if (attr_mask & IB_QP_PORT)
2799 qp->port = attr->port_num;
2800 if (attr_mask & IB_QP_ALT_PATH)
2801 qp->trans_qp.alt_port = attr->alt_port_num;
2804 * If we moved a kernel QP to RESET, clean up all old CQ
2805 * entries and reinitialize the QP.
2807 if (new_state == IB_QPS_RESET && !ibqp->uobject) {
2808 mlx5_ib_cq_clean(recv_cq, base->mqp.qpn,
2809 ibqp->srq ? to_msrq(ibqp->srq) : NULL);
2810 if (send_cq != recv_cq)
2811 mlx5_ib_cq_clean(send_cq, base->mqp.qpn, NULL);
2817 qp->sq.cur_post = 0;
2818 qp->sq.last_poll = 0;
2819 qp->db.db[MLX5_RCV_DBR] = 0;
2820 qp->db.db[MLX5_SND_DBR] = 0;
2828 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
2829 int attr_mask, struct ib_udata *udata)
2831 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
2832 struct mlx5_ib_qp *qp = to_mqp(ibqp);
2833 enum ib_qp_type qp_type;
2834 enum ib_qp_state cur_state, new_state;
2837 enum rdma_link_layer ll = IB_LINK_LAYER_UNSPECIFIED;
2839 if (ibqp->rwq_ind_tbl)
2842 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
2843 return mlx5_ib_gsi_modify_qp(ibqp, attr, attr_mask);
2845 qp_type = (unlikely(ibqp->qp_type == MLX5_IB_QPT_HW_GSI)) ?
2846 IB_QPT_GSI : ibqp->qp_type;
2848 mutex_lock(&qp->mutex);
2850 cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
2851 new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
2853 if (!(cur_state == new_state && cur_state == IB_QPS_RESET)) {
2854 port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
2855 ll = dev->ib_dev.get_link_layer(&dev->ib_dev, port);
2858 if (qp_type != MLX5_IB_QPT_REG_UMR &&
2859 !ib_modify_qp_is_ok(cur_state, new_state, qp_type, attr_mask, ll)) {
2860 mlx5_ib_dbg(dev, "invalid QP state transition from %d to %d, qp_type %d, attr_mask 0x%x\n",
2861 cur_state, new_state, ibqp->qp_type, attr_mask);
2865 if ((attr_mask & IB_QP_PORT) &&
2866 (attr->port_num == 0 ||
2867 attr->port_num > MLX5_CAP_GEN(dev->mdev, num_ports))) {
2868 mlx5_ib_dbg(dev, "invalid port number %d. number of ports is %d\n",
2869 attr->port_num, dev->num_ports);
2873 if (attr_mask & IB_QP_PKEY_INDEX) {
2874 port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
2875 if (attr->pkey_index >=
2876 dev->mdev->port_caps[port - 1].pkey_table_len) {
2877 mlx5_ib_dbg(dev, "invalid pkey index %d\n",
2883 if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
2884 attr->max_rd_atomic >
2885 (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_res_qp))) {
2886 mlx5_ib_dbg(dev, "invalid max_rd_atomic value %d\n",
2887 attr->max_rd_atomic);
2891 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
2892 attr->max_dest_rd_atomic >
2893 (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_req_qp))) {
2894 mlx5_ib_dbg(dev, "invalid max_dest_rd_atomic value %d\n",
2895 attr->max_dest_rd_atomic);
2899 if (cur_state == new_state && cur_state == IB_QPS_RESET) {
2904 err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
2907 mutex_unlock(&qp->mutex);
2911 static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq)
2913 struct mlx5_ib_cq *cq;
2916 cur = wq->head - wq->tail;
2917 if (likely(cur + nreq < wq->max_post))
2921 spin_lock(&cq->lock);
2922 cur = wq->head - wq->tail;
2923 spin_unlock(&cq->lock);
2925 return cur + nreq >= wq->max_post;
2928 static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg,
2929 u64 remote_addr, u32 rkey)
2931 rseg->raddr = cpu_to_be64(remote_addr);
2932 rseg->rkey = cpu_to_be32(rkey);
2936 static void *set_eth_seg(struct mlx5_wqe_eth_seg *eseg,
2937 struct ib_send_wr *wr, void *qend,
2938 struct mlx5_ib_qp *qp, int *size)
2942 memset(eseg, 0, sizeof(struct mlx5_wqe_eth_seg));
2944 if (wr->send_flags & IB_SEND_IP_CSUM)
2945 eseg->cs_flags = MLX5_ETH_WQE_L3_CSUM |
2946 MLX5_ETH_WQE_L4_CSUM;
2948 seg += sizeof(struct mlx5_wqe_eth_seg);
2949 *size += sizeof(struct mlx5_wqe_eth_seg) / 16;
2951 if (wr->opcode == IB_WR_LSO) {
2952 struct ib_ud_wr *ud_wr = container_of(wr, struct ib_ud_wr, wr);
2953 int size_of_inl_hdr_start = sizeof(eseg->inline_hdr_start);
2954 u64 left, leftlen, copysz;
2955 void *pdata = ud_wr->header;
2958 eseg->mss = cpu_to_be16(ud_wr->mss);
2959 eseg->inline_hdr_sz = cpu_to_be16(left);
2962 * check if there is space till the end of queue, if yes,
2963 * copy all in one shot, otherwise copy till the end of queue,
2964 * rollback and than the copy the left
2966 leftlen = qend - (void *)eseg->inline_hdr_start;
2967 copysz = min_t(u64, leftlen, left);
2969 memcpy(seg - size_of_inl_hdr_start, pdata, copysz);
2971 if (likely(copysz > size_of_inl_hdr_start)) {
2972 seg += ALIGN(copysz - size_of_inl_hdr_start, 16);
2973 *size += ALIGN(copysz - size_of_inl_hdr_start, 16) / 16;
2976 if (unlikely(copysz < left)) { /* the last wqe in the queue */
2977 seg = mlx5_get_send_wqe(qp, 0);
2980 memcpy(seg, pdata, left);
2981 seg += ALIGN(left, 16);
2982 *size += ALIGN(left, 16) / 16;
2989 static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg,
2990 struct ib_send_wr *wr)
2992 memcpy(&dseg->av, &to_mah(ud_wr(wr)->ah)->av, sizeof(struct mlx5_av));
2993 dseg->av.dqp_dct = cpu_to_be32(ud_wr(wr)->remote_qpn | MLX5_EXTENDED_UD_AV);
2994 dseg->av.key.qkey.qkey = cpu_to_be32(ud_wr(wr)->remote_qkey);
2997 static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg)
2999 dseg->byte_count = cpu_to_be32(sg->length);
3000 dseg->lkey = cpu_to_be32(sg->lkey);
3001 dseg->addr = cpu_to_be64(sg->addr);
3004 static __be16 get_klm_octo(int npages)
3006 return cpu_to_be16(ALIGN(npages, 8) / 2);
3009 static __be64 frwr_mkey_mask(void)
3013 result = MLX5_MKEY_MASK_LEN |
3014 MLX5_MKEY_MASK_PAGE_SIZE |
3015 MLX5_MKEY_MASK_START_ADDR |
3016 MLX5_MKEY_MASK_EN_RINVAL |
3017 MLX5_MKEY_MASK_KEY |
3023 MLX5_MKEY_MASK_SMALL_FENCE |
3024 MLX5_MKEY_MASK_FREE;
3026 return cpu_to_be64(result);
3029 static __be64 sig_mkey_mask(void)
3033 result = MLX5_MKEY_MASK_LEN |
3034 MLX5_MKEY_MASK_PAGE_SIZE |
3035 MLX5_MKEY_MASK_START_ADDR |
3036 MLX5_MKEY_MASK_EN_SIGERR |
3037 MLX5_MKEY_MASK_EN_RINVAL |
3038 MLX5_MKEY_MASK_KEY |
3043 MLX5_MKEY_MASK_SMALL_FENCE |
3044 MLX5_MKEY_MASK_FREE |
3045 MLX5_MKEY_MASK_BSF_EN;
3047 return cpu_to_be64(result);
3050 static void set_reg_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr,
3051 struct mlx5_ib_mr *mr)
3053 int ndescs = mr->ndescs;
3055 memset(umr, 0, sizeof(*umr));
3057 if (mr->access_mode == MLX5_MKC_ACCESS_MODE_KLMS)
3058 /* KLMs take twice the size of MTTs */
3061 umr->flags = MLX5_UMR_CHECK_NOT_FREE;
3062 umr->klm_octowords = get_klm_octo(ndescs);
3063 umr->mkey_mask = frwr_mkey_mask();
3066 static void set_linv_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr)
3068 memset(umr, 0, sizeof(*umr));
3069 umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE);
3070 umr->flags = 1 << 7;
3073 static __be64 get_umr_reg_mr_mask(void)
3077 result = MLX5_MKEY_MASK_LEN |
3078 MLX5_MKEY_MASK_PAGE_SIZE |
3079 MLX5_MKEY_MASK_START_ADDR |
3083 MLX5_MKEY_MASK_KEY |
3087 MLX5_MKEY_MASK_FREE;
3089 return cpu_to_be64(result);
3092 static __be64 get_umr_unreg_mr_mask(void)
3096 result = MLX5_MKEY_MASK_FREE;
3098 return cpu_to_be64(result);
3101 static __be64 get_umr_update_mtt_mask(void)
3105 result = MLX5_MKEY_MASK_FREE;
3107 return cpu_to_be64(result);
3110 static __be64 get_umr_update_translation_mask(void)
3114 result = MLX5_MKEY_MASK_LEN |
3115 MLX5_MKEY_MASK_PAGE_SIZE |
3116 MLX5_MKEY_MASK_START_ADDR |
3117 MLX5_MKEY_MASK_KEY |
3118 MLX5_MKEY_MASK_FREE;
3120 return cpu_to_be64(result);
3123 static __be64 get_umr_update_access_mask(void)
3127 result = MLX5_MKEY_MASK_LW |
3131 MLX5_MKEY_MASK_KEY |
3132 MLX5_MKEY_MASK_FREE;
3134 return cpu_to_be64(result);
3137 static __be64 get_umr_update_pd_mask(void)
3141 result = MLX5_MKEY_MASK_PD |
3142 MLX5_MKEY_MASK_KEY |
3143 MLX5_MKEY_MASK_FREE;
3145 return cpu_to_be64(result);
3148 static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr,
3149 struct ib_send_wr *wr)
3151 struct mlx5_umr_wr *umrwr = umr_wr(wr);
3153 memset(umr, 0, sizeof(*umr));
3155 if (wr->send_flags & MLX5_IB_SEND_UMR_FAIL_IF_FREE)
3156 umr->flags = MLX5_UMR_CHECK_FREE; /* fail if free */
3158 umr->flags = MLX5_UMR_CHECK_NOT_FREE; /* fail if not free */
3160 if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) {
3161 umr->klm_octowords = get_klm_octo(umrwr->npages);
3162 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT) {
3163 umr->mkey_mask = get_umr_update_mtt_mask();
3164 umr->bsf_octowords = get_klm_octo(umrwr->target.offset);
3165 umr->flags |= MLX5_UMR_TRANSLATION_OFFSET_EN;
3167 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_TRANSLATION)
3168 umr->mkey_mask |= get_umr_update_translation_mask();
3169 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_ACCESS)
3170 umr->mkey_mask |= get_umr_update_access_mask();
3171 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_PD)
3172 umr->mkey_mask |= get_umr_update_pd_mask();
3173 if (!umr->mkey_mask)
3174 umr->mkey_mask = get_umr_reg_mr_mask();
3176 umr->mkey_mask = get_umr_unreg_mr_mask();
3180 umr->flags |= MLX5_UMR_INLINE;
3183 static u8 get_umr_flags(int acc)
3185 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) |
3186 (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) |
3187 (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) |
3188 (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) |
3189 MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN;
3192 static void set_reg_mkey_seg(struct mlx5_mkey_seg *seg,
3193 struct mlx5_ib_mr *mr,
3194 u32 key, int access)
3196 int ndescs = ALIGN(mr->ndescs, 8) >> 1;
3198 memset(seg, 0, sizeof(*seg));
3200 if (mr->access_mode == MLX5_MKC_ACCESS_MODE_MTT)
3201 seg->log2_page_size = ilog2(mr->ibmr.page_size);
3202 else if (mr->access_mode == MLX5_MKC_ACCESS_MODE_KLMS)
3203 /* KLMs take twice the size of MTTs */
3206 seg->flags = get_umr_flags(access) | mr->access_mode;
3207 seg->qpn_mkey7_0 = cpu_to_be32((key & 0xff) | 0xffffff00);
3208 seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL);
3209 seg->start_addr = cpu_to_be64(mr->ibmr.iova);
3210 seg->len = cpu_to_be64(mr->ibmr.length);
3211 seg->xlt_oct_size = cpu_to_be32(ndescs);
3214 static void set_linv_mkey_seg(struct mlx5_mkey_seg *seg)
3216 memset(seg, 0, sizeof(*seg));
3217 seg->status = MLX5_MKEY_STATUS_FREE;
3220 static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr)
3222 struct mlx5_umr_wr *umrwr = umr_wr(wr);
3224 memset(seg, 0, sizeof(*seg));
3225 if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) {
3226 seg->status = MLX5_MKEY_STATUS_FREE;
3230 seg->flags = convert_access(umrwr->access_flags);
3231 if (!(wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT)) {
3233 seg->flags_pd = cpu_to_be32(to_mpd(umrwr->pd)->pdn);
3234 seg->start_addr = cpu_to_be64(umrwr->target.virt_addr);
3236 seg->len = cpu_to_be64(umrwr->length);
3237 seg->log2_page_size = umrwr->page_shift;
3238 seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 |
3239 mlx5_mkey_variant(umrwr->mkey));
3242 static void set_reg_data_seg(struct mlx5_wqe_data_seg *dseg,
3243 struct mlx5_ib_mr *mr,
3244 struct mlx5_ib_pd *pd)
3246 int bcount = mr->desc_size * mr->ndescs;
3248 dseg->addr = cpu_to_be64(mr->desc_map);
3249 dseg->byte_count = cpu_to_be32(ALIGN(bcount, 64));
3250 dseg->lkey = cpu_to_be32(pd->ibpd.local_dma_lkey);
3253 static __be32 send_ieth(struct ib_send_wr *wr)
3255 switch (wr->opcode) {
3256 case IB_WR_SEND_WITH_IMM:
3257 case IB_WR_RDMA_WRITE_WITH_IMM:
3258 return wr->ex.imm_data;
3260 case IB_WR_SEND_WITH_INV:
3261 return cpu_to_be32(wr->ex.invalidate_rkey);
3268 static u8 calc_sig(void *wqe, int size)
3274 for (i = 0; i < size; i++)
3280 static u8 wq_sig(void *wqe)
3282 return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4);
3285 static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr,
3288 struct mlx5_wqe_inline_seg *seg;
3289 void *qend = qp->sq.qend;
3297 wqe += sizeof(*seg);
3298 for (i = 0; i < wr->num_sge; i++) {
3299 addr = (void *)(unsigned long)(wr->sg_list[i].addr);
3300 len = wr->sg_list[i].length;
3303 if (unlikely(inl > qp->max_inline_data))
3306 if (unlikely(wqe + len > qend)) {
3308 memcpy(wqe, addr, copy);
3311 wqe = mlx5_get_send_wqe(qp, 0);
3313 memcpy(wqe, addr, len);
3317 seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG);
3319 *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16;
3324 static u16 prot_field_size(enum ib_signature_type type)
3327 case IB_SIG_TYPE_T10_DIF:
3328 return MLX5_DIF_SIZE;
3334 static u8 bs_selector(int block_size)
3336 switch (block_size) {
3337 case 512: return 0x1;
3338 case 520: return 0x2;
3339 case 4096: return 0x3;
3340 case 4160: return 0x4;
3341 case 1073741824: return 0x5;
3346 static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain,
3347 struct mlx5_bsf_inl *inl)
3349 /* Valid inline section and allow BSF refresh */
3350 inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID |
3351 MLX5_BSF_REFRESH_DIF);
3352 inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag);
3353 inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag);
3354 /* repeating block */
3355 inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK;
3356 inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ?
3357 MLX5_DIF_CRC : MLX5_DIF_IPCS;
3359 if (domain->sig.dif.ref_remap)
3360 inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG;
3362 if (domain->sig.dif.app_escape) {
3363 if (domain->sig.dif.ref_escape)
3364 inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE;
3366 inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE;
3369 inl->dif_app_bitmask_check =
3370 cpu_to_be16(domain->sig.dif.apptag_check_mask);
3373 static int mlx5_set_bsf(struct ib_mr *sig_mr,
3374 struct ib_sig_attrs *sig_attrs,
3375 struct mlx5_bsf *bsf, u32 data_size)
3377 struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig;
3378 struct mlx5_bsf_basic *basic = &bsf->basic;
3379 struct ib_sig_domain *mem = &sig_attrs->mem;
3380 struct ib_sig_domain *wire = &sig_attrs->wire;
3382 memset(bsf, 0, sizeof(*bsf));
3384 /* Basic + Extended + Inline */
3385 basic->bsf_size_sbs = 1 << 7;
3386 /* Input domain check byte mask */
3387 basic->check_byte_mask = sig_attrs->check_mask;
3388 basic->raw_data_size = cpu_to_be32(data_size);
3391 switch (sig_attrs->mem.sig_type) {
3392 case IB_SIG_TYPE_NONE:
3394 case IB_SIG_TYPE_T10_DIF:
3395 basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval);
3396 basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx);
3397 mlx5_fill_inl_bsf(mem, &bsf->m_inl);
3404 switch (sig_attrs->wire.sig_type) {
3405 case IB_SIG_TYPE_NONE:
3407 case IB_SIG_TYPE_T10_DIF:
3408 if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval &&
3409 mem->sig_type == wire->sig_type) {
3410 /* Same block structure */
3411 basic->bsf_size_sbs |= 1 << 4;
3412 if (mem->sig.dif.bg_type == wire->sig.dif.bg_type)
3413 basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK;
3414 if (mem->sig.dif.app_tag == wire->sig.dif.app_tag)
3415 basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK;
3416 if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag)
3417 basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK;
3419 basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval);
3421 basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx);
3422 mlx5_fill_inl_bsf(wire, &bsf->w_inl);
3431 static int set_sig_data_segment(struct ib_sig_handover_wr *wr,
3432 struct mlx5_ib_qp *qp, void **seg, int *size)
3434 struct ib_sig_attrs *sig_attrs = wr->sig_attrs;
3435 struct ib_mr *sig_mr = wr->sig_mr;
3436 struct mlx5_bsf *bsf;
3437 u32 data_len = wr->wr.sg_list->length;
3438 u32 data_key = wr->wr.sg_list->lkey;
3439 u64 data_va = wr->wr.sg_list->addr;
3444 (data_key == wr->prot->lkey &&
3445 data_va == wr->prot->addr &&
3446 data_len == wr->prot->length)) {
3448 * Source domain doesn't contain signature information
3449 * or data and protection are interleaved in memory.
3450 * So need construct:
3451 * ------------------
3453 * ------------------
3455 * ------------------
3457 struct mlx5_klm *data_klm = *seg;
3459 data_klm->bcount = cpu_to_be32(data_len);
3460 data_klm->key = cpu_to_be32(data_key);
3461 data_klm->va = cpu_to_be64(data_va);
3462 wqe_size = ALIGN(sizeof(*data_klm), 64);
3465 * Source domain contains signature information
3466 * So need construct a strided block format:
3467 * ---------------------------
3468 * | stride_block_ctrl |
3469 * ---------------------------
3471 * ---------------------------
3473 * ---------------------------
3475 * ---------------------------
3477 struct mlx5_stride_block_ctrl_seg *sblock_ctrl;
3478 struct mlx5_stride_block_entry *data_sentry;
3479 struct mlx5_stride_block_entry *prot_sentry;
3480 u32 prot_key = wr->prot->lkey;
3481 u64 prot_va = wr->prot->addr;
3482 u16 block_size = sig_attrs->mem.sig.dif.pi_interval;
3486 data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl);
3487 prot_sentry = (void *)data_sentry + sizeof(*data_sentry);
3489 prot_size = prot_field_size(sig_attrs->mem.sig_type);
3491 pr_err("Bad block size given: %u\n", block_size);
3494 sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size +
3496 sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP);
3497 sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size);
3498 sblock_ctrl->num_entries = cpu_to_be16(2);
3500 data_sentry->bcount = cpu_to_be16(block_size);
3501 data_sentry->key = cpu_to_be32(data_key);
3502 data_sentry->va = cpu_to_be64(data_va);
3503 data_sentry->stride = cpu_to_be16(block_size);
3505 prot_sentry->bcount = cpu_to_be16(prot_size);
3506 prot_sentry->key = cpu_to_be32(prot_key);
3507 prot_sentry->va = cpu_to_be64(prot_va);
3508 prot_sentry->stride = cpu_to_be16(prot_size);
3510 wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) +
3511 sizeof(*prot_sentry), 64);
3515 *size += wqe_size / 16;
3516 if (unlikely((*seg == qp->sq.qend)))
3517 *seg = mlx5_get_send_wqe(qp, 0);
3520 ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len);
3524 *seg += sizeof(*bsf);
3525 *size += sizeof(*bsf) / 16;
3526 if (unlikely((*seg == qp->sq.qend)))
3527 *seg = mlx5_get_send_wqe(qp, 0);
3532 static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg,
3533 struct ib_sig_handover_wr *wr, u32 nelements,
3534 u32 length, u32 pdn)
3536 struct ib_mr *sig_mr = wr->sig_mr;
3537 u32 sig_key = sig_mr->rkey;
3538 u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1;
3540 memset(seg, 0, sizeof(*seg));
3542 seg->flags = get_umr_flags(wr->access_flags) |
3543 MLX5_MKC_ACCESS_MODE_KLMS;
3544 seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00);
3545 seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 |
3546 MLX5_MKEY_BSF_EN | pdn);
3547 seg->len = cpu_to_be64(length);
3548 seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements)));
3549 seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE);
3552 static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr,
3555 memset(umr, 0, sizeof(*umr));
3557 umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE;
3558 umr->klm_octowords = get_klm_octo(nelements);
3559 umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE);
3560 umr->mkey_mask = sig_mkey_mask();
3564 static int set_sig_umr_wr(struct ib_send_wr *send_wr, struct mlx5_ib_qp *qp,
3565 void **seg, int *size)
3567 struct ib_sig_handover_wr *wr = sig_handover_wr(send_wr);
3568 struct mlx5_ib_mr *sig_mr = to_mmr(wr->sig_mr);
3569 u32 pdn = get_pd(qp)->pdn;
3571 int region_len, ret;
3573 if (unlikely(wr->wr.num_sge != 1) ||
3574 unlikely(wr->access_flags & IB_ACCESS_REMOTE_ATOMIC) ||
3575 unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) ||
3576 unlikely(!sig_mr->sig->sig_status_checked))
3579 /* length of the protected region, data + protection */
3580 region_len = wr->wr.sg_list->length;
3582 (wr->prot->lkey != wr->wr.sg_list->lkey ||
3583 wr->prot->addr != wr->wr.sg_list->addr ||
3584 wr->prot->length != wr->wr.sg_list->length))
3585 region_len += wr->prot->length;
3588 * KLM octoword size - if protection was provided
3589 * then we use strided block format (3 octowords),
3590 * else we use single KLM (1 octoword)
3592 klm_oct_size = wr->prot ? 3 : 1;
3594 set_sig_umr_segment(*seg, klm_oct_size);
3595 *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
3596 *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
3597 if (unlikely((*seg == qp->sq.qend)))
3598 *seg = mlx5_get_send_wqe(qp, 0);
3600 set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn);
3601 *seg += sizeof(struct mlx5_mkey_seg);
3602 *size += sizeof(struct mlx5_mkey_seg) / 16;
3603 if (unlikely((*seg == qp->sq.qend)))
3604 *seg = mlx5_get_send_wqe(qp, 0);
3606 ret = set_sig_data_segment(wr, qp, seg, size);
3610 sig_mr->sig->sig_status_checked = false;
3614 static int set_psv_wr(struct ib_sig_domain *domain,
3615 u32 psv_idx, void **seg, int *size)
3617 struct mlx5_seg_set_psv *psv_seg = *seg;
3619 memset(psv_seg, 0, sizeof(*psv_seg));
3620 psv_seg->psv_num = cpu_to_be32(psv_idx);
3621 switch (domain->sig_type) {
3622 case IB_SIG_TYPE_NONE:
3624 case IB_SIG_TYPE_T10_DIF:
3625 psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 |
3626 domain->sig.dif.app_tag);
3627 psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag);
3630 pr_err("Bad signature type given.\n");
3634 *seg += sizeof(*psv_seg);
3635 *size += sizeof(*psv_seg) / 16;
3640 static int set_reg_wr(struct mlx5_ib_qp *qp,
3641 struct ib_reg_wr *wr,
3642 void **seg, int *size)
3644 struct mlx5_ib_mr *mr = to_mmr(wr->mr);
3645 struct mlx5_ib_pd *pd = to_mpd(qp->ibqp.pd);
3647 if (unlikely(wr->wr.send_flags & IB_SEND_INLINE)) {
3648 mlx5_ib_warn(to_mdev(qp->ibqp.device),
3649 "Invalid IB_SEND_INLINE send flag\n");
3653 set_reg_umr_seg(*seg, mr);
3654 *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
3655 *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
3656 if (unlikely((*seg == qp->sq.qend)))
3657 *seg = mlx5_get_send_wqe(qp, 0);
3659 set_reg_mkey_seg(*seg, mr, wr->key, wr->access);
3660 *seg += sizeof(struct mlx5_mkey_seg);
3661 *size += sizeof(struct mlx5_mkey_seg) / 16;
3662 if (unlikely((*seg == qp->sq.qend)))
3663 *seg = mlx5_get_send_wqe(qp, 0);
3665 set_reg_data_seg(*seg, mr, pd);
3666 *seg += sizeof(struct mlx5_wqe_data_seg);
3667 *size += (sizeof(struct mlx5_wqe_data_seg) / 16);
3672 static void set_linv_wr(struct mlx5_ib_qp *qp, void **seg, int *size)
3674 set_linv_umr_seg(*seg);
3675 *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
3676 *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
3677 if (unlikely((*seg == qp->sq.qend)))
3678 *seg = mlx5_get_send_wqe(qp, 0);
3679 set_linv_mkey_seg(*seg);
3680 *seg += sizeof(struct mlx5_mkey_seg);
3681 *size += sizeof(struct mlx5_mkey_seg) / 16;
3682 if (unlikely((*seg == qp->sq.qend)))
3683 *seg = mlx5_get_send_wqe(qp, 0);
3686 static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16)
3692 pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx));
3693 for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) {
3694 if ((i & 0xf) == 0) {
3695 void *buf = mlx5_get_send_wqe(qp, tidx);
3696 tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1);
3700 pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]),
3701 be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]),
3702 be32_to_cpu(p[j + 3]));
3706 static void mlx5_bf_copy(u64 __iomem *dst, u64 *src,
3707 unsigned bytecnt, struct mlx5_ib_qp *qp)
3709 while (bytecnt > 0) {
3710 __iowrite64_copy(dst++, src++, 8);
3711 __iowrite64_copy(dst++, src++, 8);
3712 __iowrite64_copy(dst++, src++, 8);
3713 __iowrite64_copy(dst++, src++, 8);
3714 __iowrite64_copy(dst++, src++, 8);
3715 __iowrite64_copy(dst++, src++, 8);
3716 __iowrite64_copy(dst++, src++, 8);
3717 __iowrite64_copy(dst++, src++, 8);
3719 if (unlikely(src == qp->sq.qend))
3720 src = mlx5_get_send_wqe(qp, 0);
3724 static u8 get_fence(u8 fence, struct ib_send_wr *wr)
3726 if (unlikely(wr->opcode == IB_WR_LOCAL_INV &&
3727 wr->send_flags & IB_SEND_FENCE))
3728 return MLX5_FENCE_MODE_STRONG_ORDERING;
3730 if (unlikely(fence)) {
3731 if (wr->send_flags & IB_SEND_FENCE)
3732 return MLX5_FENCE_MODE_SMALL_AND_FENCE;
3735 } else if (unlikely(wr->send_flags & IB_SEND_FENCE)) {
3736 return MLX5_FENCE_MODE_FENCE;
3742 static int begin_wqe(struct mlx5_ib_qp *qp, void **seg,
3743 struct mlx5_wqe_ctrl_seg **ctrl,
3744 struct ib_send_wr *wr, unsigned *idx,
3745 int *size, int nreq)
3749 if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq))) {
3754 *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1);
3755 *seg = mlx5_get_send_wqe(qp, *idx);
3757 *(uint32_t *)(*seg + 8) = 0;
3758 (*ctrl)->imm = send_ieth(wr);
3759 (*ctrl)->fm_ce_se = qp->sq_signal_bits |
3760 (wr->send_flags & IB_SEND_SIGNALED ?
3761 MLX5_WQE_CTRL_CQ_UPDATE : 0) |
3762 (wr->send_flags & IB_SEND_SOLICITED ?
3763 MLX5_WQE_CTRL_SOLICITED : 0);
3765 *seg += sizeof(**ctrl);
3766 *size = sizeof(**ctrl) / 16;
3771 static void finish_wqe(struct mlx5_ib_qp *qp,
3772 struct mlx5_wqe_ctrl_seg *ctrl,
3773 u8 size, unsigned idx, u64 wr_id,
3774 int nreq, u8 fence, u8 next_fence,
3779 ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) |
3780 mlx5_opcode | ((u32)opmod << 24));
3781 ctrl->qpn_ds = cpu_to_be32(size | (qp->trans_qp.base.mqp.qpn << 8));
3782 ctrl->fm_ce_se |= fence;
3783 qp->fm_cache = next_fence;
3784 if (unlikely(qp->wq_sig))
3785 ctrl->signature = wq_sig(ctrl);
3787 qp->sq.wrid[idx] = wr_id;
3788 qp->sq.w_list[idx].opcode = mlx5_opcode;
3789 qp->sq.wqe_head[idx] = qp->sq.head + nreq;
3790 qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB);
3791 qp->sq.w_list[idx].next = qp->sq.cur_post;
3795 int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
3796 struct ib_send_wr **bad_wr)
3798 struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */
3799 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
3800 struct mlx5_core_dev *mdev = dev->mdev;
3801 struct mlx5_ib_qp *qp;
3802 struct mlx5_ib_mr *mr;
3803 struct mlx5_wqe_data_seg *dpseg;
3804 struct mlx5_wqe_xrc_seg *xrc;
3806 int uninitialized_var(size);
3808 unsigned long flags;
3819 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
3820 return mlx5_ib_gsi_post_send(ibqp, wr, bad_wr);
3826 spin_lock_irqsave(&qp->sq.lock, flags);
3828 if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
3835 for (nreq = 0; wr; nreq++, wr = wr->next) {
3836 if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) {
3837 mlx5_ib_warn(dev, "\n");
3843 fence = qp->fm_cache;
3844 num_sge = wr->num_sge;
3845 if (unlikely(num_sge > qp->sq.max_gs)) {
3846 mlx5_ib_warn(dev, "\n");
3852 err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq);
3854 mlx5_ib_warn(dev, "\n");
3860 switch (ibqp->qp_type) {
3861 case IB_QPT_XRC_INI:
3863 seg += sizeof(*xrc);
3864 size += sizeof(*xrc) / 16;
3867 switch (wr->opcode) {
3868 case IB_WR_RDMA_READ:
3869 case IB_WR_RDMA_WRITE:
3870 case IB_WR_RDMA_WRITE_WITH_IMM:
3871 set_raddr_seg(seg, rdma_wr(wr)->remote_addr,
3873 seg += sizeof(struct mlx5_wqe_raddr_seg);
3874 size += sizeof(struct mlx5_wqe_raddr_seg) / 16;
3877 case IB_WR_ATOMIC_CMP_AND_SWP:
3878 case IB_WR_ATOMIC_FETCH_AND_ADD:
3879 case IB_WR_MASKED_ATOMIC_CMP_AND_SWP:
3880 mlx5_ib_warn(dev, "Atomic operations are not supported yet\n");
3885 case IB_WR_LOCAL_INV:
3886 next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
3887 qp->sq.wr_data[idx] = IB_WR_LOCAL_INV;
3888 ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey);
3889 set_linv_wr(qp, &seg, &size);
3894 next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
3895 qp->sq.wr_data[idx] = IB_WR_REG_MR;
3896 ctrl->imm = cpu_to_be32(reg_wr(wr)->key);
3897 err = set_reg_wr(qp, reg_wr(wr), &seg, &size);
3905 case IB_WR_REG_SIG_MR:
3906 qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR;
3907 mr = to_mmr(sig_handover_wr(wr)->sig_mr);
3909 ctrl->imm = cpu_to_be32(mr->ibmr.rkey);
3910 err = set_sig_umr_wr(wr, qp, &seg, &size);
3912 mlx5_ib_warn(dev, "\n");
3917 finish_wqe(qp, ctrl, size, idx, wr->wr_id,
3918 nreq, get_fence(fence, wr),
3919 next_fence, MLX5_OPCODE_UMR);
3921 * SET_PSV WQEs are not signaled and solicited
3924 wr->send_flags &= ~IB_SEND_SIGNALED;
3925 wr->send_flags |= IB_SEND_SOLICITED;
3926 err = begin_wqe(qp, &seg, &ctrl, wr,
3929 mlx5_ib_warn(dev, "\n");
3935 err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->mem,
3936 mr->sig->psv_memory.psv_idx, &seg,
3939 mlx5_ib_warn(dev, "\n");
3944 finish_wqe(qp, ctrl, size, idx, wr->wr_id,
3945 nreq, get_fence(fence, wr),
3946 next_fence, MLX5_OPCODE_SET_PSV);
3947 err = begin_wqe(qp, &seg, &ctrl, wr,
3950 mlx5_ib_warn(dev, "\n");
3956 next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
3957 err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->wire,
3958 mr->sig->psv_wire.psv_idx, &seg,
3961 mlx5_ib_warn(dev, "\n");
3966 finish_wqe(qp, ctrl, size, idx, wr->wr_id,
3967 nreq, get_fence(fence, wr),
3968 next_fence, MLX5_OPCODE_SET_PSV);
3978 switch (wr->opcode) {
3979 case IB_WR_RDMA_WRITE:
3980 case IB_WR_RDMA_WRITE_WITH_IMM:
3981 set_raddr_seg(seg, rdma_wr(wr)->remote_addr,
3983 seg += sizeof(struct mlx5_wqe_raddr_seg);
3984 size += sizeof(struct mlx5_wqe_raddr_seg) / 16;
3993 case MLX5_IB_QPT_HW_GSI:
3994 set_datagram_seg(seg, wr);
3995 seg += sizeof(struct mlx5_wqe_datagram_seg);
3996 size += sizeof(struct mlx5_wqe_datagram_seg) / 16;
3997 if (unlikely((seg == qend)))
3998 seg = mlx5_get_send_wqe(qp, 0);
4001 set_datagram_seg(seg, wr);
4002 seg += sizeof(struct mlx5_wqe_datagram_seg);
4003 size += sizeof(struct mlx5_wqe_datagram_seg) / 16;
4005 if (unlikely((seg == qend)))
4006 seg = mlx5_get_send_wqe(qp, 0);
4008 /* handle qp that supports ud offload */
4009 if (qp->flags & IB_QP_CREATE_IPOIB_UD_LSO) {
4010 struct mlx5_wqe_eth_pad *pad;
4013 memset(pad, 0, sizeof(struct mlx5_wqe_eth_pad));
4014 seg += sizeof(struct mlx5_wqe_eth_pad);
4015 size += sizeof(struct mlx5_wqe_eth_pad) / 16;
4017 seg = set_eth_seg(seg, wr, qend, qp, &size);
4019 if (unlikely((seg == qend)))
4020 seg = mlx5_get_send_wqe(qp, 0);
4023 case MLX5_IB_QPT_REG_UMR:
4024 if (wr->opcode != MLX5_IB_WR_UMR) {
4026 mlx5_ib_warn(dev, "bad opcode\n");
4029 qp->sq.wr_data[idx] = MLX5_IB_WR_UMR;
4030 ctrl->imm = cpu_to_be32(umr_wr(wr)->mkey);
4031 set_reg_umr_segment(seg, wr);
4032 seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
4033 size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
4034 if (unlikely((seg == qend)))
4035 seg = mlx5_get_send_wqe(qp, 0);
4036 set_reg_mkey_segment(seg, wr);
4037 seg += sizeof(struct mlx5_mkey_seg);
4038 size += sizeof(struct mlx5_mkey_seg) / 16;
4039 if (unlikely((seg == qend)))
4040 seg = mlx5_get_send_wqe(qp, 0);
4047 if (wr->send_flags & IB_SEND_INLINE && num_sge) {
4048 int uninitialized_var(sz);
4050 err = set_data_inl_seg(qp, wr, seg, &sz);
4051 if (unlikely(err)) {
4052 mlx5_ib_warn(dev, "\n");
4060 for (i = 0; i < num_sge; i++) {
4061 if (unlikely(dpseg == qend)) {
4062 seg = mlx5_get_send_wqe(qp, 0);
4065 if (likely(wr->sg_list[i].length)) {
4066 set_data_ptr_seg(dpseg, wr->sg_list + i);
4067 size += sizeof(struct mlx5_wqe_data_seg) / 16;
4073 finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq,
4074 get_fence(fence, wr), next_fence,
4075 mlx5_ib_opcode[wr->opcode]);
4078 dump_wqe(qp, idx, size);
4083 qp->sq.head += nreq;
4085 /* Make sure that descriptors are written before
4086 * updating doorbell record and ringing the doorbell
4090 qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post);
4092 /* Make sure doorbell record is visible to the HCA before
4093 * we hit doorbell */
4097 spin_lock(&bf->lock);
4099 __acquire(&bf->lock);
4102 if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) {
4103 mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp);
4106 mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset,
4107 MLX5_GET_DOORBELL_LOCK(&bf->lock32));
4108 /* Make sure doorbells don't leak out of SQ spinlock
4109 * and reach the HCA out of order.
4113 bf->offset ^= bf->buf_size;
4115 spin_unlock(&bf->lock);
4117 __release(&bf->lock);
4120 spin_unlock_irqrestore(&qp->sq.lock, flags);
4125 static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size)
4127 sig->signature = calc_sig(sig, size);
4130 int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
4131 struct ib_recv_wr **bad_wr)
4133 struct mlx5_ib_qp *qp = to_mqp(ibqp);
4134 struct mlx5_wqe_data_seg *scat;
4135 struct mlx5_rwqe_sig *sig;
4136 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
4137 struct mlx5_core_dev *mdev = dev->mdev;
4138 unsigned long flags;
4144 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
4145 return mlx5_ib_gsi_post_recv(ibqp, wr, bad_wr);
4147 spin_lock_irqsave(&qp->rq.lock, flags);
4149 if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
4156 ind = qp->rq.head & (qp->rq.wqe_cnt - 1);
4158 for (nreq = 0; wr; nreq++, wr = wr->next) {
4159 if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) {
4165 if (unlikely(wr->num_sge > qp->rq.max_gs)) {
4171 scat = get_recv_wqe(qp, ind);
4175 for (i = 0; i < wr->num_sge; i++)
4176 set_data_ptr_seg(scat + i, wr->sg_list + i);
4178 if (i < qp->rq.max_gs) {
4179 scat[i].byte_count = 0;
4180 scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY);
4185 sig = (struct mlx5_rwqe_sig *)scat;
4186 set_sig_seg(sig, (qp->rq.max_gs + 1) << 2);
4189 qp->rq.wrid[ind] = wr->wr_id;
4191 ind = (ind + 1) & (qp->rq.wqe_cnt - 1);
4196 qp->rq.head += nreq;
4198 /* Make sure that descriptors are written before
4203 *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff);
4206 spin_unlock_irqrestore(&qp->rq.lock, flags);
4211 static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state)
4213 switch (mlx5_state) {
4214 case MLX5_QP_STATE_RST: return IB_QPS_RESET;
4215 case MLX5_QP_STATE_INIT: return IB_QPS_INIT;
4216 case MLX5_QP_STATE_RTR: return IB_QPS_RTR;
4217 case MLX5_QP_STATE_RTS: return IB_QPS_RTS;
4218 case MLX5_QP_STATE_SQ_DRAINING:
4219 case MLX5_QP_STATE_SQD: return IB_QPS_SQD;
4220 case MLX5_QP_STATE_SQER: return IB_QPS_SQE;
4221 case MLX5_QP_STATE_ERR: return IB_QPS_ERR;
4226 static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state)
4228 switch (mlx5_mig_state) {
4229 case MLX5_QP_PM_ARMED: return IB_MIG_ARMED;
4230 case MLX5_QP_PM_REARM: return IB_MIG_REARM;
4231 case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED;
4236 static int to_ib_qp_access_flags(int mlx5_flags)
4240 if (mlx5_flags & MLX5_QP_BIT_RRE)
4241 ib_flags |= IB_ACCESS_REMOTE_READ;
4242 if (mlx5_flags & MLX5_QP_BIT_RWE)
4243 ib_flags |= IB_ACCESS_REMOTE_WRITE;
4244 if (mlx5_flags & MLX5_QP_BIT_RAE)
4245 ib_flags |= IB_ACCESS_REMOTE_ATOMIC;
4250 static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr,
4251 struct mlx5_qp_path *path)
4253 struct mlx5_core_dev *dev = ibdev->mdev;
4255 memset(ib_ah_attr, 0, sizeof(*ib_ah_attr));
4256 ib_ah_attr->port_num = path->port;
4258 if (ib_ah_attr->port_num == 0 ||
4259 ib_ah_attr->port_num > MLX5_CAP_GEN(dev, num_ports))
4262 ib_ah_attr->sl = path->dci_cfi_prio_sl & 0xf;
4264 ib_ah_attr->dlid = be16_to_cpu(path->rlid);
4265 ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f;
4266 ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0;
4267 ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0;
4268 if (ib_ah_attr->ah_flags) {
4269 ib_ah_attr->grh.sgid_index = path->mgid_index;
4270 ib_ah_attr->grh.hop_limit = path->hop_limit;
4271 ib_ah_attr->grh.traffic_class =
4272 (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff;
4273 ib_ah_attr->grh.flow_label =
4274 be32_to_cpu(path->tclass_flowlabel) & 0xfffff;
4275 memcpy(ib_ah_attr->grh.dgid.raw,
4276 path->rgid, sizeof(ib_ah_attr->grh.dgid.raw));
4280 static int query_raw_packet_qp_sq_state(struct mlx5_ib_dev *dev,
4281 struct mlx5_ib_sq *sq,
4289 inlen = MLX5_ST_SZ_BYTES(query_sq_out);
4290 out = mlx5_vzalloc(inlen);
4294 err = mlx5_core_query_sq(dev->mdev, sq->base.mqp.qpn, out);
4298 sqc = MLX5_ADDR_OF(query_sq_out, out, sq_context);
4299 *sq_state = MLX5_GET(sqc, sqc, state);
4300 sq->state = *sq_state;
4307 static int query_raw_packet_qp_rq_state(struct mlx5_ib_dev *dev,
4308 struct mlx5_ib_rq *rq,
4316 inlen = MLX5_ST_SZ_BYTES(query_rq_out);
4317 out = mlx5_vzalloc(inlen);
4321 err = mlx5_core_query_rq(dev->mdev, rq->base.mqp.qpn, out);
4325 rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context);
4326 *rq_state = MLX5_GET(rqc, rqc, state);
4327 rq->state = *rq_state;
4334 static int sqrq_state_to_qp_state(u8 sq_state, u8 rq_state,
4335 struct mlx5_ib_qp *qp, u8 *qp_state)
4337 static const u8 sqrq_trans[MLX5_RQ_NUM_STATE][MLX5_SQ_NUM_STATE] = {
4338 [MLX5_RQC_STATE_RST] = {
4339 [MLX5_SQC_STATE_RST] = IB_QPS_RESET,
4340 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD,
4341 [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE_BAD,
4342 [MLX5_SQ_STATE_NA] = IB_QPS_RESET,
4344 [MLX5_RQC_STATE_RDY] = {
4345 [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD,
4346 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE,
4347 [MLX5_SQC_STATE_ERR] = IB_QPS_SQE,
4348 [MLX5_SQ_STATE_NA] = MLX5_QP_STATE,
4350 [MLX5_RQC_STATE_ERR] = {
4351 [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD,
4352 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD,
4353 [MLX5_SQC_STATE_ERR] = IB_QPS_ERR,
4354 [MLX5_SQ_STATE_NA] = IB_QPS_ERR,
4356 [MLX5_RQ_STATE_NA] = {
4357 [MLX5_SQC_STATE_RST] = IB_QPS_RESET,
4358 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE,
4359 [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE,
4360 [MLX5_SQ_STATE_NA] = MLX5_QP_STATE_BAD,
4364 *qp_state = sqrq_trans[rq_state][sq_state];
4366 if (*qp_state == MLX5_QP_STATE_BAD) {
4367 WARN(1, "Buggy Raw Packet QP state, SQ 0x%x state: 0x%x, RQ 0x%x state: 0x%x",
4368 qp->raw_packet_qp.sq.base.mqp.qpn, sq_state,
4369 qp->raw_packet_qp.rq.base.mqp.qpn, rq_state);
4373 if (*qp_state == MLX5_QP_STATE)
4374 *qp_state = qp->state;
4379 static int query_raw_packet_qp_state(struct mlx5_ib_dev *dev,
4380 struct mlx5_ib_qp *qp,
4381 u8 *raw_packet_qp_state)
4383 struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
4384 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
4385 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
4387 u8 sq_state = MLX5_SQ_STATE_NA;
4388 u8 rq_state = MLX5_RQ_STATE_NA;
4390 if (qp->sq.wqe_cnt) {
4391 err = query_raw_packet_qp_sq_state(dev, sq, &sq_state);
4396 if (qp->rq.wqe_cnt) {
4397 err = query_raw_packet_qp_rq_state(dev, rq, &rq_state);
4402 return sqrq_state_to_qp_state(sq_state, rq_state, qp,
4403 raw_packet_qp_state);
4406 static int query_qp_attr(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
4407 struct ib_qp_attr *qp_attr)
4409 int outlen = MLX5_ST_SZ_BYTES(query_qp_out);
4410 struct mlx5_qp_context *context;
4415 outb = kzalloc(outlen, GFP_KERNEL);
4419 err = mlx5_core_qp_query(dev->mdev, &qp->trans_qp.base.mqp, outb,
4424 /* FIXME: use MLX5_GET rather than mlx5_qp_context manual struct */
4425 context = (struct mlx5_qp_context *)MLX5_ADDR_OF(query_qp_out, outb, qpc);
4427 mlx5_state = be32_to_cpu(context->flags) >> 28;
4429 qp->state = to_ib_qp_state(mlx5_state);
4430 qp_attr->path_mtu = context->mtu_msgmax >> 5;
4431 qp_attr->path_mig_state =
4432 to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3);
4433 qp_attr->qkey = be32_to_cpu(context->qkey);
4434 qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff;
4435 qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff;
4436 qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff;
4437 qp_attr->qp_access_flags =
4438 to_ib_qp_access_flags(be32_to_cpu(context->params2));
4440 if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) {
4441 to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path);
4442 to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path);
4443 qp_attr->alt_pkey_index =
4444 be16_to_cpu(context->alt_path.pkey_index);
4445 qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num;
4448 qp_attr->pkey_index = be16_to_cpu(context->pri_path.pkey_index);
4449 qp_attr->port_num = context->pri_path.port;
4451 /* qp_attr->en_sqd_async_notify is only applicable in modify qp */
4452 qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING;
4454 qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7);
4456 qp_attr->max_dest_rd_atomic =
4457 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7);
4458 qp_attr->min_rnr_timer =
4459 (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f;
4460 qp_attr->timeout = context->pri_path.ackto_lt >> 3;
4461 qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7;
4462 qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7;
4463 qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3;
4470 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
4471 int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr)
4473 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
4474 struct mlx5_ib_qp *qp = to_mqp(ibqp);
4476 u8 raw_packet_qp_state;
4478 if (ibqp->rwq_ind_tbl)
4481 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
4482 return mlx5_ib_gsi_query_qp(ibqp, qp_attr, qp_attr_mask,
4485 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
4487 * Wait for any outstanding page faults, in case the user frees memory
4488 * based upon this query's result.
4490 flush_workqueue(mlx5_ib_page_fault_wq);
4493 mutex_lock(&qp->mutex);
4495 if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
4496 err = query_raw_packet_qp_state(dev, qp, &raw_packet_qp_state);
4499 qp->state = raw_packet_qp_state;
4500 qp_attr->port_num = 1;
4502 err = query_qp_attr(dev, qp, qp_attr);
4507 qp_attr->qp_state = qp->state;
4508 qp_attr->cur_qp_state = qp_attr->qp_state;
4509 qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt;
4510 qp_attr->cap.max_recv_sge = qp->rq.max_gs;
4512 if (!ibqp->uobject) {
4513 qp_attr->cap.max_send_wr = qp->sq.max_post;
4514 qp_attr->cap.max_send_sge = qp->sq.max_gs;
4515 qp_init_attr->qp_context = ibqp->qp_context;
4517 qp_attr->cap.max_send_wr = 0;
4518 qp_attr->cap.max_send_sge = 0;
4521 qp_init_attr->qp_type = ibqp->qp_type;
4522 qp_init_attr->recv_cq = ibqp->recv_cq;
4523 qp_init_attr->send_cq = ibqp->send_cq;
4524 qp_init_attr->srq = ibqp->srq;
4525 qp_attr->cap.max_inline_data = qp->max_inline_data;
4527 qp_init_attr->cap = qp_attr->cap;
4529 qp_init_attr->create_flags = 0;
4530 if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK)
4531 qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
4533 if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL)
4534 qp_init_attr->create_flags |= IB_QP_CREATE_CROSS_CHANNEL;
4535 if (qp->flags & MLX5_IB_QP_MANAGED_SEND)
4536 qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_SEND;
4537 if (qp->flags & MLX5_IB_QP_MANAGED_RECV)
4538 qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_RECV;
4539 if (qp->flags & MLX5_IB_QP_SQPN_QP1)
4540 qp_init_attr->create_flags |= mlx5_ib_create_qp_sqpn_qp1();
4542 qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ?
4543 IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
4546 mutex_unlock(&qp->mutex);
4550 struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
4551 struct ib_ucontext *context,
4552 struct ib_udata *udata)
4554 struct mlx5_ib_dev *dev = to_mdev(ibdev);
4555 struct mlx5_ib_xrcd *xrcd;
4558 if (!MLX5_CAP_GEN(dev->mdev, xrc))
4559 return ERR_PTR(-ENOSYS);
4561 xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL);
4563 return ERR_PTR(-ENOMEM);
4565 err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn);
4568 return ERR_PTR(-ENOMEM);
4571 return &xrcd->ibxrcd;
4574 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
4576 struct mlx5_ib_dev *dev = to_mdev(xrcd->device);
4577 u32 xrcdn = to_mxrcd(xrcd)->xrcdn;
4580 err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn);
4582 mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn);
4591 static void mlx5_ib_wq_event(struct mlx5_core_qp *core_qp, int type)
4593 struct mlx5_ib_rwq *rwq = to_mibrwq(core_qp);
4594 struct mlx5_ib_dev *dev = to_mdev(rwq->ibwq.device);
4595 struct ib_event event;
4597 if (rwq->ibwq.event_handler) {
4598 event.device = rwq->ibwq.device;
4599 event.element.wq = &rwq->ibwq;
4601 case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
4602 event.event = IB_EVENT_WQ_FATAL;
4605 mlx5_ib_warn(dev, "Unexpected event type %d on WQ %06x\n", type, core_qp->qpn);
4609 rwq->ibwq.event_handler(&event, rwq->ibwq.wq_context);
4613 static int create_rq(struct mlx5_ib_rwq *rwq, struct ib_pd *pd,
4614 struct ib_wq_init_attr *init_attr)
4616 struct mlx5_ib_dev *dev;
4624 dev = to_mdev(pd->device);
4626 inlen = MLX5_ST_SZ_BYTES(create_rq_in) + sizeof(u64) * rwq->rq_num_pas;
4627 in = mlx5_vzalloc(inlen);
4631 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
4632 MLX5_SET(rqc, rqc, mem_rq_type,
4633 MLX5_RQC_MEM_RQ_TYPE_MEMORY_RQ_INLINE);
4634 MLX5_SET(rqc, rqc, user_index, rwq->user_index);
4635 MLX5_SET(rqc, rqc, cqn, to_mcq(init_attr->cq)->mcq.cqn);
4636 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
4637 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
4638 wq = MLX5_ADDR_OF(rqc, rqc, wq);
4639 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
4640 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
4641 MLX5_SET(wq, wq, log_wq_stride, rwq->log_rq_stride);
4642 MLX5_SET(wq, wq, log_wq_sz, rwq->log_rq_size);
4643 MLX5_SET(wq, wq, pd, to_mpd(pd)->pdn);
4644 MLX5_SET(wq, wq, page_offset, rwq->rq_page_offset);
4645 MLX5_SET(wq, wq, log_wq_pg_sz, rwq->log_page_size);
4646 MLX5_SET(wq, wq, wq_signature, rwq->wq_sig);
4647 MLX5_SET64(wq, wq, dbr_addr, rwq->db.dma);
4648 rq_pas0 = (__be64 *)MLX5_ADDR_OF(wq, wq, pas);
4649 mlx5_ib_populate_pas(dev, rwq->umem, rwq->page_shift, rq_pas0, 0);
4650 err = mlx5_core_create_rq_tracked(dev->mdev, in, inlen, &rwq->core_qp);
4655 static int set_user_rq_size(struct mlx5_ib_dev *dev,
4656 struct ib_wq_init_attr *wq_init_attr,
4657 struct mlx5_ib_create_wq *ucmd,
4658 struct mlx5_ib_rwq *rwq)
4660 /* Sanity check RQ size before proceeding */
4661 if (wq_init_attr->max_wr > (1 << MLX5_CAP_GEN(dev->mdev, log_max_wq_sz)))
4664 if (!ucmd->rq_wqe_count)
4667 rwq->wqe_count = ucmd->rq_wqe_count;
4668 rwq->wqe_shift = ucmd->rq_wqe_shift;
4669 rwq->buf_size = (rwq->wqe_count << rwq->wqe_shift);
4670 rwq->log_rq_stride = rwq->wqe_shift;
4671 rwq->log_rq_size = ilog2(rwq->wqe_count);
4675 static int prepare_user_rq(struct ib_pd *pd,
4676 struct ib_wq_init_attr *init_attr,
4677 struct ib_udata *udata,
4678 struct mlx5_ib_rwq *rwq)
4680 struct mlx5_ib_dev *dev = to_mdev(pd->device);
4681 struct mlx5_ib_create_wq ucmd = {};
4683 size_t required_cmd_sz;
4685 required_cmd_sz = offsetof(typeof(ucmd), reserved) + sizeof(ucmd.reserved);
4686 if (udata->inlen < required_cmd_sz) {
4687 mlx5_ib_dbg(dev, "invalid inlen\n");
4691 if (udata->inlen > sizeof(ucmd) &&
4692 !ib_is_udata_cleared(udata, sizeof(ucmd),
4693 udata->inlen - sizeof(ucmd))) {
4694 mlx5_ib_dbg(dev, "inlen is not supported\n");
4698 if (ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen))) {
4699 mlx5_ib_dbg(dev, "copy failed\n");
4703 if (ucmd.comp_mask) {
4704 mlx5_ib_dbg(dev, "invalid comp mask\n");
4708 if (ucmd.reserved) {
4709 mlx5_ib_dbg(dev, "invalid reserved\n");
4713 err = set_user_rq_size(dev, init_attr, &ucmd, rwq);
4715 mlx5_ib_dbg(dev, "err %d\n", err);
4719 err = create_user_rq(dev, pd, rwq, &ucmd);
4721 mlx5_ib_dbg(dev, "err %d\n", err);
4726 rwq->user_index = ucmd.user_index;
4730 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
4731 struct ib_wq_init_attr *init_attr,
4732 struct ib_udata *udata)
4734 struct mlx5_ib_dev *dev;
4735 struct mlx5_ib_rwq *rwq;
4736 struct mlx5_ib_create_wq_resp resp = {};
4737 size_t min_resp_len;
4741 return ERR_PTR(-ENOSYS);
4743 min_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved);
4744 if (udata->outlen && udata->outlen < min_resp_len)
4745 return ERR_PTR(-EINVAL);
4747 dev = to_mdev(pd->device);
4748 switch (init_attr->wq_type) {
4750 rwq = kzalloc(sizeof(*rwq), GFP_KERNEL);
4752 return ERR_PTR(-ENOMEM);
4753 err = prepare_user_rq(pd, init_attr, udata, rwq);
4756 err = create_rq(rwq, pd, init_attr);
4761 mlx5_ib_dbg(dev, "unsupported wq type %d\n",
4762 init_attr->wq_type);
4763 return ERR_PTR(-EINVAL);
4766 rwq->ibwq.wq_num = rwq->core_qp.qpn;
4767 rwq->ibwq.state = IB_WQS_RESET;
4768 if (udata->outlen) {
4769 resp.response_length = offsetof(typeof(resp), response_length) +
4770 sizeof(resp.response_length);
4771 err = ib_copy_to_udata(udata, &resp, resp.response_length);
4776 rwq->core_qp.event = mlx5_ib_wq_event;
4777 rwq->ibwq.event_handler = init_attr->event_handler;
4781 mlx5_core_destroy_rq_tracked(dev->mdev, &rwq->core_qp);
4783 destroy_user_rq(pd, rwq);
4786 return ERR_PTR(err);
4789 int mlx5_ib_destroy_wq(struct ib_wq *wq)
4791 struct mlx5_ib_dev *dev = to_mdev(wq->device);
4792 struct mlx5_ib_rwq *rwq = to_mrwq(wq);
4794 mlx5_core_destroy_rq_tracked(dev->mdev, &rwq->core_qp);
4795 destroy_user_rq(wq->pd, rwq);
4801 struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
4802 struct ib_rwq_ind_table_init_attr *init_attr,
4803 struct ib_udata *udata)
4805 struct mlx5_ib_dev *dev = to_mdev(device);
4806 struct mlx5_ib_rwq_ind_table *rwq_ind_tbl;
4807 int sz = 1 << init_attr->log_ind_tbl_size;
4808 struct mlx5_ib_create_rwq_ind_tbl_resp resp = {};
4809 size_t min_resp_len;
4816 if (udata->inlen > 0 &&
4817 !ib_is_udata_cleared(udata, 0,
4819 return ERR_PTR(-EOPNOTSUPP);
4821 min_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved);
4822 if (udata->outlen && udata->outlen < min_resp_len)
4823 return ERR_PTR(-EINVAL);
4825 rwq_ind_tbl = kzalloc(sizeof(*rwq_ind_tbl), GFP_KERNEL);
4827 return ERR_PTR(-ENOMEM);
4829 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
4830 in = mlx5_vzalloc(inlen);
4836 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
4838 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
4839 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
4841 for (i = 0; i < sz; i++)
4842 MLX5_SET(rqtc, rqtc, rq_num[i], init_attr->ind_tbl[i]->wq_num);
4844 err = mlx5_core_create_rqt(dev->mdev, in, inlen, &rwq_ind_tbl->rqtn);
4850 rwq_ind_tbl->ib_rwq_ind_tbl.ind_tbl_num = rwq_ind_tbl->rqtn;
4851 if (udata->outlen) {
4852 resp.response_length = offsetof(typeof(resp), response_length) +
4853 sizeof(resp.response_length);
4854 err = ib_copy_to_udata(udata, &resp, resp.response_length);
4859 return &rwq_ind_tbl->ib_rwq_ind_tbl;
4862 mlx5_core_destroy_rqt(dev->mdev, rwq_ind_tbl->rqtn);
4865 return ERR_PTR(err);
4868 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl)
4870 struct mlx5_ib_rwq_ind_table *rwq_ind_tbl = to_mrwq_ind_table(ib_rwq_ind_tbl);
4871 struct mlx5_ib_dev *dev = to_mdev(ib_rwq_ind_tbl->device);
4873 mlx5_core_destroy_rqt(dev->mdev, rwq_ind_tbl->rqtn);
4879 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
4880 u32 wq_attr_mask, struct ib_udata *udata)
4882 struct mlx5_ib_dev *dev = to_mdev(wq->device);
4883 struct mlx5_ib_rwq *rwq = to_mrwq(wq);
4884 struct mlx5_ib_modify_wq ucmd = {};
4885 size_t required_cmd_sz;
4893 required_cmd_sz = offsetof(typeof(ucmd), reserved) + sizeof(ucmd.reserved);
4894 if (udata->inlen < required_cmd_sz)
4897 if (udata->inlen > sizeof(ucmd) &&
4898 !ib_is_udata_cleared(udata, sizeof(ucmd),
4899 udata->inlen - sizeof(ucmd)))
4902 if (ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen)))
4905 if (ucmd.comp_mask || ucmd.reserved)
4908 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
4909 in = mlx5_vzalloc(inlen);
4913 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
4915 curr_wq_state = (wq_attr_mask & IB_WQ_CUR_STATE) ?
4916 wq_attr->curr_wq_state : wq->state;
4917 wq_state = (wq_attr_mask & IB_WQ_STATE) ?
4918 wq_attr->wq_state : curr_wq_state;
4919 if (curr_wq_state == IB_WQS_ERR)
4920 curr_wq_state = MLX5_RQC_STATE_ERR;
4921 if (wq_state == IB_WQS_ERR)
4922 wq_state = MLX5_RQC_STATE_ERR;
4923 MLX5_SET(modify_rq_in, in, rq_state, curr_wq_state);
4924 MLX5_SET(rqc, rqc, state, wq_state);
4926 err = mlx5_core_modify_rq(dev->mdev, rwq->core_qp.qpn, in, inlen);
4929 rwq->ibwq.state = (wq_state == MLX5_RQC_STATE_ERR) ? IB_WQS_ERR : wq_state;