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;
1470 qp->flags |= MLX5_IB_QP_RSS;
1478 static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
1479 struct ib_qp_init_attr *init_attr,
1480 struct ib_udata *udata, struct mlx5_ib_qp *qp)
1482 struct mlx5_ib_resources *devr = &dev->devr;
1483 int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
1484 struct mlx5_core_dev *mdev = dev->mdev;
1485 struct mlx5_ib_create_qp_resp resp;
1486 struct mlx5_ib_cq *send_cq;
1487 struct mlx5_ib_cq *recv_cq;
1488 unsigned long flags;
1489 u32 uidx = MLX5_IB_DEFAULT_UIDX;
1490 struct mlx5_ib_create_qp ucmd;
1491 struct mlx5_ib_qp_base *base;
1496 base = init_attr->qp_type == IB_QPT_RAW_PACKET ?
1497 &qp->raw_packet_qp.rq.base :
1500 if (init_attr->qp_type != IB_QPT_RAW_PACKET)
1501 mlx5_ib_odp_create_qp(qp);
1503 mutex_init(&qp->mutex);
1504 spin_lock_init(&qp->sq.lock);
1505 spin_lock_init(&qp->rq.lock);
1507 if (init_attr->rwq_ind_tbl) {
1511 err = create_rss_raw_qp_tir(dev, qp, pd, init_attr, udata);
1515 if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) {
1516 if (!MLX5_CAP_GEN(mdev, block_lb_mc)) {
1517 mlx5_ib_dbg(dev, "block multicast loopback isn't supported\n");
1520 qp->flags |= MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK;
1524 if (init_attr->create_flags &
1525 (IB_QP_CREATE_CROSS_CHANNEL |
1526 IB_QP_CREATE_MANAGED_SEND |
1527 IB_QP_CREATE_MANAGED_RECV)) {
1528 if (!MLX5_CAP_GEN(mdev, cd)) {
1529 mlx5_ib_dbg(dev, "cross-channel isn't supported\n");
1532 if (init_attr->create_flags & IB_QP_CREATE_CROSS_CHANNEL)
1533 qp->flags |= MLX5_IB_QP_CROSS_CHANNEL;
1534 if (init_attr->create_flags & IB_QP_CREATE_MANAGED_SEND)
1535 qp->flags |= MLX5_IB_QP_MANAGED_SEND;
1536 if (init_attr->create_flags & IB_QP_CREATE_MANAGED_RECV)
1537 qp->flags |= MLX5_IB_QP_MANAGED_RECV;
1540 if (init_attr->qp_type == IB_QPT_UD &&
1541 (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO))
1542 if (!MLX5_CAP_GEN(mdev, ipoib_basic_offloads)) {
1543 mlx5_ib_dbg(dev, "ipoib UD lso qp isn't supported\n");
1547 if (init_attr->create_flags & IB_QP_CREATE_SCATTER_FCS) {
1548 if (init_attr->qp_type != IB_QPT_RAW_PACKET) {
1549 mlx5_ib_dbg(dev, "Scatter FCS is supported only for Raw Packet QPs");
1552 if (!MLX5_CAP_GEN(dev->mdev, eth_net_offloads) ||
1553 !MLX5_CAP_ETH(dev->mdev, scatter_fcs)) {
1554 mlx5_ib_dbg(dev, "Scatter FCS isn't supported\n");
1557 qp->flags |= MLX5_IB_QP_CAP_SCATTER_FCS;
1560 if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
1561 qp->sq_signal_bits = MLX5_WQE_CTRL_CQ_UPDATE;
1563 if (pd && pd->uobject) {
1564 if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) {
1565 mlx5_ib_dbg(dev, "copy failed\n");
1569 err = get_qp_user_index(to_mucontext(pd->uobject->context),
1570 &ucmd, udata->inlen, &uidx);
1574 qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE);
1575 qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE);
1577 qp->wq_sig = !!wq_signature;
1580 qp->has_rq = qp_has_rq(init_attr);
1581 err = set_rq_size(dev, &init_attr->cap, qp->has_rq,
1582 qp, (pd && pd->uobject) ? &ucmd : NULL);
1584 mlx5_ib_dbg(dev, "err %d\n", err);
1591 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
1592 mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count);
1593 if (ucmd.rq_wqe_shift != qp->rq.wqe_shift ||
1594 ucmd.rq_wqe_count != qp->rq.wqe_cnt) {
1595 mlx5_ib_dbg(dev, "invalid rq params\n");
1598 if (ucmd.sq_wqe_count > max_wqes) {
1599 mlx5_ib_dbg(dev, "requested sq_wqe_count (%d) > max allowed (%d)\n",
1600 ucmd.sq_wqe_count, max_wqes);
1603 if (init_attr->create_flags &
1604 mlx5_ib_create_qp_sqpn_qp1()) {
1605 mlx5_ib_dbg(dev, "user-space is not allowed to create UD QPs spoofing as QP1\n");
1608 err = create_user_qp(dev, pd, qp, udata, init_attr, &in,
1609 &resp, &inlen, base);
1611 mlx5_ib_dbg(dev, "err %d\n", err);
1613 err = create_kernel_qp(dev, init_attr, qp, &in, &inlen,
1616 mlx5_ib_dbg(dev, "err %d\n", err);
1622 in = mlx5_vzalloc(inlen);
1626 qp->create_type = MLX5_QP_EMPTY;
1629 if (is_sqp(init_attr->qp_type))
1630 qp->port = init_attr->port_num;
1632 qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
1634 MLX5_SET(qpc, qpc, st, to_mlx5_st(init_attr->qp_type));
1635 MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
1637 if (init_attr->qp_type != MLX5_IB_QPT_REG_UMR)
1638 MLX5_SET(qpc, qpc, pd, to_mpd(pd ? pd : devr->p0)->pdn);
1640 MLX5_SET(qpc, qpc, latency_sensitive, 1);
1644 MLX5_SET(qpc, qpc, wq_signature, 1);
1646 if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK)
1647 MLX5_SET(qpc, qpc, block_lb_mc, 1);
1649 if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL)
1650 MLX5_SET(qpc, qpc, cd_master, 1);
1651 if (qp->flags & MLX5_IB_QP_MANAGED_SEND)
1652 MLX5_SET(qpc, qpc, cd_slave_send, 1);
1653 if (qp->flags & MLX5_IB_QP_MANAGED_RECV)
1654 MLX5_SET(qpc, qpc, cd_slave_receive, 1);
1656 if (qp->scat_cqe && is_connected(init_attr->qp_type)) {
1660 rcqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->recv_cq);
1661 scqe_sz = mlx5_ib_get_cqe_size(dev, init_attr->send_cq);
1664 MLX5_SET(qpc, qpc, cs_res, MLX5_RES_SCAT_DATA64_CQE);
1666 MLX5_SET(qpc, qpc, cs_res, MLX5_RES_SCAT_DATA32_CQE);
1668 if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) {
1670 MLX5_SET(qpc, qpc, cs_req, MLX5_REQ_SCAT_DATA64_CQE);
1672 MLX5_SET(qpc, qpc, cs_req, MLX5_REQ_SCAT_DATA32_CQE);
1676 if (qp->rq.wqe_cnt) {
1677 MLX5_SET(qpc, qpc, log_rq_stride, qp->rq.wqe_shift - 4);
1678 MLX5_SET(qpc, qpc, log_rq_size, ilog2(qp->rq.wqe_cnt));
1681 MLX5_SET(qpc, qpc, rq_type, get_rx_type(qp, init_attr));
1684 MLX5_SET(qpc, qpc, log_sq_size, ilog2(qp->sq.wqe_cnt));
1686 MLX5_SET(qpc, qpc, no_sq, 1);
1688 /* Set default resources */
1689 switch (init_attr->qp_type) {
1690 case IB_QPT_XRC_TGT:
1691 MLX5_SET(qpc, qpc, cqn_rcv, to_mcq(devr->c0)->mcq.cqn);
1692 MLX5_SET(qpc, qpc, cqn_snd, to_mcq(devr->c0)->mcq.cqn);
1693 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(devr->s0)->msrq.srqn);
1694 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(init_attr->xrcd)->xrcdn);
1696 case IB_QPT_XRC_INI:
1697 MLX5_SET(qpc, qpc, cqn_rcv, to_mcq(devr->c0)->mcq.cqn);
1698 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(devr->x1)->xrcdn);
1699 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(devr->s0)->msrq.srqn);
1702 if (init_attr->srq) {
1703 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(devr->x0)->xrcdn);
1704 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(init_attr->srq)->msrq.srqn);
1706 MLX5_SET(qpc, qpc, xrcd, to_mxrcd(devr->x1)->xrcdn);
1707 MLX5_SET(qpc, qpc, srqn_rmpn_xrqn, to_msrq(devr->s1)->msrq.srqn);
1711 if (init_attr->send_cq)
1712 MLX5_SET(qpc, qpc, cqn_snd, to_mcq(init_attr->send_cq)->mcq.cqn);
1714 if (init_attr->recv_cq)
1715 MLX5_SET(qpc, qpc, cqn_rcv, to_mcq(init_attr->recv_cq)->mcq.cqn);
1717 MLX5_SET64(qpc, qpc, dbr_addr, qp->db.dma);
1719 /* 0xffffff means we ask to work with cqe version 0 */
1720 if (MLX5_CAP_GEN(mdev, cqe_version) == MLX5_CQE_VERSION_V1)
1721 MLX5_SET(qpc, qpc, user_index, uidx);
1723 /* we use IB_QP_CREATE_IPOIB_UD_LSO to indicates ipoib qp */
1724 if (init_attr->qp_type == IB_QPT_UD &&
1725 (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO)) {
1726 MLX5_SET(qpc, qpc, ulp_stateless_offload_mode, 1);
1727 qp->flags |= MLX5_IB_QP_LSO;
1730 if (init_attr->qp_type == IB_QPT_RAW_PACKET) {
1731 qp->raw_packet_qp.sq.ubuffer.buf_addr = ucmd.sq_buf_addr;
1732 raw_packet_qp_copy_info(qp, &qp->raw_packet_qp);
1733 err = create_raw_packet_qp(dev, qp, in, pd);
1735 err = mlx5_core_create_qp(dev->mdev, &base->mqp, in, inlen);
1739 mlx5_ib_dbg(dev, "create qp failed\n");
1745 base->container_mibqp = qp;
1746 base->mqp.event = mlx5_ib_qp_event;
1748 get_cqs(init_attr->qp_type, init_attr->send_cq, init_attr->recv_cq,
1749 &send_cq, &recv_cq);
1750 spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
1751 mlx5_ib_lock_cqs(send_cq, recv_cq);
1752 /* Maintain device to QPs access, needed for further handling via reset
1755 list_add_tail(&qp->qps_list, &dev->qp_list);
1756 /* Maintain CQ to QPs access, needed for further handling via reset flow
1759 list_add_tail(&qp->cq_send_list, &send_cq->list_send_qp);
1761 list_add_tail(&qp->cq_recv_list, &recv_cq->list_recv_qp);
1762 mlx5_ib_unlock_cqs(send_cq, recv_cq);
1763 spin_unlock_irqrestore(&dev->reset_flow_resource_lock, flags);
1768 if (qp->create_type == MLX5_QP_USER)
1769 destroy_qp_user(pd, qp, base);
1770 else if (qp->create_type == MLX5_QP_KERNEL)
1771 destroy_qp_kernel(dev, qp);
1777 static void mlx5_ib_lock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq)
1778 __acquires(&send_cq->lock) __acquires(&recv_cq->lock)
1782 if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
1783 spin_lock(&send_cq->lock);
1784 spin_lock_nested(&recv_cq->lock,
1785 SINGLE_DEPTH_NESTING);
1786 } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) {
1787 spin_lock(&send_cq->lock);
1788 __acquire(&recv_cq->lock);
1790 spin_lock(&recv_cq->lock);
1791 spin_lock_nested(&send_cq->lock,
1792 SINGLE_DEPTH_NESTING);
1795 spin_lock(&send_cq->lock);
1796 __acquire(&recv_cq->lock);
1798 } else if (recv_cq) {
1799 spin_lock(&recv_cq->lock);
1800 __acquire(&send_cq->lock);
1802 __acquire(&send_cq->lock);
1803 __acquire(&recv_cq->lock);
1807 static void mlx5_ib_unlock_cqs(struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq)
1808 __releases(&send_cq->lock) __releases(&recv_cq->lock)
1812 if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
1813 spin_unlock(&recv_cq->lock);
1814 spin_unlock(&send_cq->lock);
1815 } else if (send_cq->mcq.cqn == recv_cq->mcq.cqn) {
1816 __release(&recv_cq->lock);
1817 spin_unlock(&send_cq->lock);
1819 spin_unlock(&send_cq->lock);
1820 spin_unlock(&recv_cq->lock);
1823 __release(&recv_cq->lock);
1824 spin_unlock(&send_cq->lock);
1826 } else if (recv_cq) {
1827 __release(&send_cq->lock);
1828 spin_unlock(&recv_cq->lock);
1830 __release(&recv_cq->lock);
1831 __release(&send_cq->lock);
1835 static struct mlx5_ib_pd *get_pd(struct mlx5_ib_qp *qp)
1837 return to_mpd(qp->ibqp.pd);
1840 static void get_cqs(enum ib_qp_type qp_type,
1841 struct ib_cq *ib_send_cq, struct ib_cq *ib_recv_cq,
1842 struct mlx5_ib_cq **send_cq, struct mlx5_ib_cq **recv_cq)
1845 case IB_QPT_XRC_TGT:
1849 case MLX5_IB_QPT_REG_UMR:
1850 case IB_QPT_XRC_INI:
1851 *send_cq = ib_send_cq ? to_mcq(ib_send_cq) : NULL;
1856 case MLX5_IB_QPT_HW_GSI:
1860 case IB_QPT_RAW_IPV6:
1861 case IB_QPT_RAW_ETHERTYPE:
1862 case IB_QPT_RAW_PACKET:
1863 *send_cq = ib_send_cq ? to_mcq(ib_send_cq) : NULL;
1864 *recv_cq = ib_recv_cq ? to_mcq(ib_recv_cq) : NULL;
1875 static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
1876 const struct mlx5_modify_raw_qp_param *raw_qp_param,
1877 u8 lag_tx_affinity);
1879 static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
1881 struct mlx5_ib_cq *send_cq, *recv_cq;
1882 struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
1883 unsigned long flags;
1886 if (qp->ibqp.rwq_ind_tbl) {
1887 destroy_rss_raw_qp_tir(dev, qp);
1891 base = qp->ibqp.qp_type == IB_QPT_RAW_PACKET ?
1892 &qp->raw_packet_qp.rq.base :
1895 if (qp->state != IB_QPS_RESET) {
1896 if (qp->ibqp.qp_type != IB_QPT_RAW_PACKET) {
1897 mlx5_ib_qp_disable_pagefaults(qp);
1898 err = mlx5_core_qp_modify(dev->mdev,
1899 MLX5_CMD_OP_2RST_QP, 0,
1902 struct mlx5_modify_raw_qp_param raw_qp_param = {
1903 .operation = MLX5_CMD_OP_2RST_QP
1906 err = modify_raw_packet_qp(dev, qp, &raw_qp_param, 0);
1909 mlx5_ib_warn(dev, "mlx5_ib: modify QP 0x%06x to RESET failed\n",
1913 get_cqs(qp->ibqp.qp_type, qp->ibqp.send_cq, qp->ibqp.recv_cq,
1914 &send_cq, &recv_cq);
1916 spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
1917 mlx5_ib_lock_cqs(send_cq, recv_cq);
1918 /* del from lists under both locks above to protect reset flow paths */
1919 list_del(&qp->qps_list);
1921 list_del(&qp->cq_send_list);
1924 list_del(&qp->cq_recv_list);
1926 if (qp->create_type == MLX5_QP_KERNEL) {
1927 __mlx5_ib_cq_clean(recv_cq, base->mqp.qpn,
1928 qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
1929 if (send_cq != recv_cq)
1930 __mlx5_ib_cq_clean(send_cq, base->mqp.qpn,
1933 mlx5_ib_unlock_cqs(send_cq, recv_cq);
1934 spin_unlock_irqrestore(&dev->reset_flow_resource_lock, flags);
1936 if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
1937 destroy_raw_packet_qp(dev, qp);
1939 err = mlx5_core_destroy_qp(dev->mdev, &base->mqp);
1941 mlx5_ib_warn(dev, "failed to destroy QP 0x%x\n",
1945 if (qp->create_type == MLX5_QP_KERNEL)
1946 destroy_qp_kernel(dev, qp);
1947 else if (qp->create_type == MLX5_QP_USER)
1948 destroy_qp_user(&get_pd(qp)->ibpd, qp, base);
1951 static const char *ib_qp_type_str(enum ib_qp_type type)
1955 return "IB_QPT_SMI";
1957 return "IB_QPT_GSI";
1964 case IB_QPT_RAW_IPV6:
1965 return "IB_QPT_RAW_IPV6";
1966 case IB_QPT_RAW_ETHERTYPE:
1967 return "IB_QPT_RAW_ETHERTYPE";
1968 case IB_QPT_XRC_INI:
1969 return "IB_QPT_XRC_INI";
1970 case IB_QPT_XRC_TGT:
1971 return "IB_QPT_XRC_TGT";
1972 case IB_QPT_RAW_PACKET:
1973 return "IB_QPT_RAW_PACKET";
1974 case MLX5_IB_QPT_REG_UMR:
1975 return "MLX5_IB_QPT_REG_UMR";
1978 return "Invalid QP type";
1982 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
1983 struct ib_qp_init_attr *init_attr,
1984 struct ib_udata *udata)
1986 struct mlx5_ib_dev *dev;
1987 struct mlx5_ib_qp *qp;
1992 dev = to_mdev(pd->device);
1994 if (init_attr->qp_type == IB_QPT_RAW_PACKET) {
1996 mlx5_ib_dbg(dev, "Raw Packet QP is not supported for kernel consumers\n");
1997 return ERR_PTR(-EINVAL);
1998 } else if (!to_mucontext(pd->uobject->context)->cqe_version) {
1999 mlx5_ib_dbg(dev, "Raw Packet QP is only supported for CQE version > 0\n");
2000 return ERR_PTR(-EINVAL);
2004 /* being cautious here */
2005 if (init_attr->qp_type != IB_QPT_XRC_TGT &&
2006 init_attr->qp_type != MLX5_IB_QPT_REG_UMR) {
2007 pr_warn("%s: no PD for transport %s\n", __func__,
2008 ib_qp_type_str(init_attr->qp_type));
2009 return ERR_PTR(-EINVAL);
2011 dev = to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device);
2014 switch (init_attr->qp_type) {
2015 case IB_QPT_XRC_TGT:
2016 case IB_QPT_XRC_INI:
2017 if (!MLX5_CAP_GEN(dev->mdev, xrc)) {
2018 mlx5_ib_dbg(dev, "XRC not supported\n");
2019 return ERR_PTR(-ENOSYS);
2021 init_attr->recv_cq = NULL;
2022 if (init_attr->qp_type == IB_QPT_XRC_TGT) {
2023 xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn;
2024 init_attr->send_cq = NULL;
2028 case IB_QPT_RAW_PACKET:
2033 case MLX5_IB_QPT_HW_GSI:
2034 case MLX5_IB_QPT_REG_UMR:
2035 qp = kzalloc(sizeof(*qp), GFP_KERNEL);
2037 return ERR_PTR(-ENOMEM);
2039 err = create_qp_common(dev, pd, init_attr, udata, qp);
2041 mlx5_ib_dbg(dev, "create_qp_common failed\n");
2043 return ERR_PTR(err);
2046 if (is_qp0(init_attr->qp_type))
2047 qp->ibqp.qp_num = 0;
2048 else if (is_qp1(init_attr->qp_type))
2049 qp->ibqp.qp_num = 1;
2051 qp->ibqp.qp_num = qp->trans_qp.base.mqp.qpn;
2053 mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n",
2054 qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn,
2055 to_mcq(init_attr->recv_cq)->mcq.cqn,
2056 to_mcq(init_attr->send_cq)->mcq.cqn);
2058 qp->trans_qp.xrcdn = xrcdn;
2063 return mlx5_ib_gsi_create_qp(pd, init_attr);
2065 case IB_QPT_RAW_IPV6:
2066 case IB_QPT_RAW_ETHERTYPE:
2069 mlx5_ib_dbg(dev, "unsupported qp type %d\n",
2070 init_attr->qp_type);
2071 /* Don't support raw QPs */
2072 return ERR_PTR(-EINVAL);
2078 int mlx5_ib_destroy_qp(struct ib_qp *qp)
2080 struct mlx5_ib_dev *dev = to_mdev(qp->device);
2081 struct mlx5_ib_qp *mqp = to_mqp(qp);
2083 if (unlikely(qp->qp_type == IB_QPT_GSI))
2084 return mlx5_ib_gsi_destroy_qp(qp);
2086 destroy_qp_common(dev, mqp);
2093 static __be32 to_mlx5_access_flags(struct mlx5_ib_qp *qp, const struct ib_qp_attr *attr,
2096 u32 hw_access_flags = 0;
2100 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
2101 dest_rd_atomic = attr->max_dest_rd_atomic;
2103 dest_rd_atomic = qp->trans_qp.resp_depth;
2105 if (attr_mask & IB_QP_ACCESS_FLAGS)
2106 access_flags = attr->qp_access_flags;
2108 access_flags = qp->trans_qp.atomic_rd_en;
2110 if (!dest_rd_atomic)
2111 access_flags &= IB_ACCESS_REMOTE_WRITE;
2113 if (access_flags & IB_ACCESS_REMOTE_READ)
2114 hw_access_flags |= MLX5_QP_BIT_RRE;
2115 if (access_flags & IB_ACCESS_REMOTE_ATOMIC)
2116 hw_access_flags |= (MLX5_QP_BIT_RAE | MLX5_ATOMIC_MODE_CX);
2117 if (access_flags & IB_ACCESS_REMOTE_WRITE)
2118 hw_access_flags |= MLX5_QP_BIT_RWE;
2120 return cpu_to_be32(hw_access_flags);
2124 MLX5_PATH_FLAG_FL = 1 << 0,
2125 MLX5_PATH_FLAG_FREE_AR = 1 << 1,
2126 MLX5_PATH_FLAG_COUNTER = 1 << 2,
2129 static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate)
2131 if (rate == IB_RATE_PORT_CURRENT) {
2133 } else if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_300_GBPS) {
2136 while (rate != IB_RATE_2_5_GBPS &&
2137 !(1 << (rate + MLX5_STAT_RATE_OFFSET) &
2138 MLX5_CAP_GEN(dev->mdev, stat_rate_support)))
2142 return rate + MLX5_STAT_RATE_OFFSET;
2145 static int modify_raw_packet_eth_prio(struct mlx5_core_dev *dev,
2146 struct mlx5_ib_sq *sq, u8 sl)
2153 inlen = MLX5_ST_SZ_BYTES(modify_tis_in);
2154 in = mlx5_vzalloc(inlen);
2158 MLX5_SET(modify_tis_in, in, bitmask.prio, 1);
2160 tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx);
2161 MLX5_SET(tisc, tisc, prio, ((sl & 0x7) << 1));
2163 err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen);
2170 static int modify_raw_packet_tx_affinity(struct mlx5_core_dev *dev,
2171 struct mlx5_ib_sq *sq, u8 tx_affinity)
2178 inlen = MLX5_ST_SZ_BYTES(modify_tis_in);
2179 in = mlx5_vzalloc(inlen);
2183 MLX5_SET(modify_tis_in, in, bitmask.lag_tx_port_affinity, 1);
2185 tisc = MLX5_ADDR_OF(modify_tis_in, in, ctx);
2186 MLX5_SET(tisc, tisc, lag_tx_port_affinity, tx_affinity);
2188 err = mlx5_core_modify_tis(dev, sq->tisn, in, inlen);
2195 static int mlx5_set_path(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
2196 const struct ib_ah_attr *ah,
2197 struct mlx5_qp_path *path, u8 port, int attr_mask,
2198 u32 path_flags, const struct ib_qp_attr *attr,
2201 enum rdma_link_layer ll = rdma_port_get_link_layer(&dev->ib_dev, port);
2204 if (attr_mask & IB_QP_PKEY_INDEX)
2205 path->pkey_index = cpu_to_be16(alt ? attr->alt_pkey_index :
2208 if (ah->ah_flags & IB_AH_GRH) {
2209 if (ah->grh.sgid_index >=
2210 dev->mdev->port_caps[port - 1].gid_table_len) {
2211 pr_err("sgid_index (%u) too large. max is %d\n",
2213 dev->mdev->port_caps[port - 1].gid_table_len);
2218 if (ll == IB_LINK_LAYER_ETHERNET) {
2219 if (!(ah->ah_flags & IB_AH_GRH))
2221 memcpy(path->rmac, ah->dmac, sizeof(ah->dmac));
2222 path->udp_sport = mlx5_get_roce_udp_sport(dev, port,
2223 ah->grh.sgid_index);
2224 path->dci_cfi_prio_sl = (ah->sl & 0x7) << 4;
2226 path->fl_free_ar = (path_flags & MLX5_PATH_FLAG_FL) ? 0x80 : 0;
2228 (path_flags & MLX5_PATH_FLAG_FREE_AR) ? 0x40 : 0;
2229 path->rlid = cpu_to_be16(ah->dlid);
2230 path->grh_mlid = ah->src_path_bits & 0x7f;
2231 if (ah->ah_flags & IB_AH_GRH)
2232 path->grh_mlid |= 1 << 7;
2233 path->dci_cfi_prio_sl = ah->sl & 0xf;
2236 if (ah->ah_flags & IB_AH_GRH) {
2237 path->mgid_index = ah->grh.sgid_index;
2238 path->hop_limit = ah->grh.hop_limit;
2239 path->tclass_flowlabel =
2240 cpu_to_be32((ah->grh.traffic_class << 20) |
2241 (ah->grh.flow_label));
2242 memcpy(path->rgid, ah->grh.dgid.raw, 16);
2245 err = ib_rate_to_mlx5(dev, ah->static_rate);
2248 path->static_rate = err;
2251 if (attr_mask & IB_QP_TIMEOUT)
2252 path->ackto_lt = (alt ? attr->alt_timeout : attr->timeout) << 3;
2254 if ((qp->ibqp.qp_type == IB_QPT_RAW_PACKET) && qp->sq.wqe_cnt)
2255 return modify_raw_packet_eth_prio(dev->mdev,
2256 &qp->raw_packet_qp.sq,
2262 static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_QP_ST_MAX] = {
2263 [MLX5_QP_STATE_INIT] = {
2264 [MLX5_QP_STATE_INIT] = {
2265 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE |
2266 MLX5_QP_OPTPAR_RAE |
2267 MLX5_QP_OPTPAR_RWE |
2268 MLX5_QP_OPTPAR_PKEY_INDEX |
2269 MLX5_QP_OPTPAR_PRI_PORT,
2270 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE |
2271 MLX5_QP_OPTPAR_PKEY_INDEX |
2272 MLX5_QP_OPTPAR_PRI_PORT,
2273 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX |
2274 MLX5_QP_OPTPAR_Q_KEY |
2275 MLX5_QP_OPTPAR_PRI_PORT,
2277 [MLX5_QP_STATE_RTR] = {
2278 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2279 MLX5_QP_OPTPAR_RRE |
2280 MLX5_QP_OPTPAR_RAE |
2281 MLX5_QP_OPTPAR_RWE |
2282 MLX5_QP_OPTPAR_PKEY_INDEX,
2283 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2284 MLX5_QP_OPTPAR_RWE |
2285 MLX5_QP_OPTPAR_PKEY_INDEX,
2286 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_PKEY_INDEX |
2287 MLX5_QP_OPTPAR_Q_KEY,
2288 [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX |
2289 MLX5_QP_OPTPAR_Q_KEY,
2290 [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2291 MLX5_QP_OPTPAR_RRE |
2292 MLX5_QP_OPTPAR_RAE |
2293 MLX5_QP_OPTPAR_RWE |
2294 MLX5_QP_OPTPAR_PKEY_INDEX,
2297 [MLX5_QP_STATE_RTR] = {
2298 [MLX5_QP_STATE_RTS] = {
2299 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2300 MLX5_QP_OPTPAR_RRE |
2301 MLX5_QP_OPTPAR_RAE |
2302 MLX5_QP_OPTPAR_RWE |
2303 MLX5_QP_OPTPAR_PM_STATE |
2304 MLX5_QP_OPTPAR_RNR_TIMEOUT,
2305 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
2306 MLX5_QP_OPTPAR_RWE |
2307 MLX5_QP_OPTPAR_PM_STATE,
2308 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY,
2311 [MLX5_QP_STATE_RTS] = {
2312 [MLX5_QP_STATE_RTS] = {
2313 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RRE |
2314 MLX5_QP_OPTPAR_RAE |
2315 MLX5_QP_OPTPAR_RWE |
2316 MLX5_QP_OPTPAR_RNR_TIMEOUT |
2317 MLX5_QP_OPTPAR_PM_STATE |
2318 MLX5_QP_OPTPAR_ALT_ADDR_PATH,
2319 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE |
2320 MLX5_QP_OPTPAR_PM_STATE |
2321 MLX5_QP_OPTPAR_ALT_ADDR_PATH,
2322 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY |
2323 MLX5_QP_OPTPAR_SRQN |
2324 MLX5_QP_OPTPAR_CQN_RCV,
2327 [MLX5_QP_STATE_SQER] = {
2328 [MLX5_QP_STATE_RTS] = {
2329 [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY,
2330 [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY,
2331 [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE,
2332 [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT |
2333 MLX5_QP_OPTPAR_RWE |
2334 MLX5_QP_OPTPAR_RAE |
2340 static int ib_nr_to_mlx5_nr(int ib_mask)
2345 case IB_QP_CUR_STATE:
2347 case IB_QP_EN_SQD_ASYNC_NOTIFY:
2349 case IB_QP_ACCESS_FLAGS:
2350 return MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RRE |
2352 case IB_QP_PKEY_INDEX:
2353 return MLX5_QP_OPTPAR_PKEY_INDEX;
2355 return MLX5_QP_OPTPAR_PRI_PORT;
2357 return MLX5_QP_OPTPAR_Q_KEY;
2359 return MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH |
2360 MLX5_QP_OPTPAR_PRI_PORT;
2361 case IB_QP_PATH_MTU:
2364 return MLX5_QP_OPTPAR_ACK_TIMEOUT;
2365 case IB_QP_RETRY_CNT:
2366 return MLX5_QP_OPTPAR_RETRY_COUNT;
2367 case IB_QP_RNR_RETRY:
2368 return MLX5_QP_OPTPAR_RNR_RETRY;
2371 case IB_QP_MAX_QP_RD_ATOMIC:
2372 return MLX5_QP_OPTPAR_SRA_MAX;
2373 case IB_QP_ALT_PATH:
2374 return MLX5_QP_OPTPAR_ALT_ADDR_PATH;
2375 case IB_QP_MIN_RNR_TIMER:
2376 return MLX5_QP_OPTPAR_RNR_TIMEOUT;
2379 case IB_QP_MAX_DEST_RD_ATOMIC:
2380 return MLX5_QP_OPTPAR_RRA_MAX | MLX5_QP_OPTPAR_RWE |
2381 MLX5_QP_OPTPAR_RRE | MLX5_QP_OPTPAR_RAE;
2382 case IB_QP_PATH_MIG_STATE:
2383 return MLX5_QP_OPTPAR_PM_STATE;
2386 case IB_QP_DEST_QPN:
2392 static int ib_mask_to_mlx5_opt(int ib_mask)
2397 for (i = 0; i < 8 * sizeof(int); i++) {
2398 if ((1 << i) & ib_mask)
2399 result |= ib_nr_to_mlx5_nr(1 << i);
2405 static int modify_raw_packet_qp_rq(struct mlx5_ib_dev *dev,
2406 struct mlx5_ib_rq *rq, int new_state,
2407 const struct mlx5_modify_raw_qp_param *raw_qp_param)
2414 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
2415 in = mlx5_vzalloc(inlen);
2419 MLX5_SET(modify_rq_in, in, rq_state, rq->state);
2421 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
2422 MLX5_SET(rqc, rqc, state, new_state);
2424 if (raw_qp_param->set_mask & MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID) {
2425 if (MLX5_CAP_GEN(dev->mdev, modify_rq_counter_set_id)) {
2426 MLX5_SET64(modify_rq_in, in, modify_bitmask,
2427 MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_MODIFY_RQ_COUNTER_SET_ID);
2428 MLX5_SET(rqc, rqc, counter_set_id, raw_qp_param->rq_q_ctr_id);
2430 pr_info_once("%s: RAW PACKET QP counters are not supported on current FW\n",
2434 err = mlx5_core_modify_rq(dev->mdev, rq->base.mqp.qpn, in, inlen);
2438 rq->state = new_state;
2445 static int modify_raw_packet_qp_sq(struct mlx5_core_dev *dev,
2446 struct mlx5_ib_sq *sq, int new_state)
2453 inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
2454 in = mlx5_vzalloc(inlen);
2458 MLX5_SET(modify_sq_in, in, sq_state, sq->state);
2460 sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
2461 MLX5_SET(sqc, sqc, state, new_state);
2463 err = mlx5_core_modify_sq(dev, sq->base.mqp.qpn, in, inlen);
2467 sq->state = new_state;
2474 static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
2475 const struct mlx5_modify_raw_qp_param *raw_qp_param,
2478 struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
2479 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
2480 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
2485 switch (raw_qp_param->operation) {
2486 case MLX5_CMD_OP_RST2INIT_QP:
2487 rq_state = MLX5_RQC_STATE_RDY;
2488 sq_state = MLX5_SQC_STATE_RDY;
2490 case MLX5_CMD_OP_2ERR_QP:
2491 rq_state = MLX5_RQC_STATE_ERR;
2492 sq_state = MLX5_SQC_STATE_ERR;
2494 case MLX5_CMD_OP_2RST_QP:
2495 rq_state = MLX5_RQC_STATE_RST;
2496 sq_state = MLX5_SQC_STATE_RST;
2498 case MLX5_CMD_OP_INIT2INIT_QP:
2499 case MLX5_CMD_OP_INIT2RTR_QP:
2500 case MLX5_CMD_OP_RTR2RTS_QP:
2501 case MLX5_CMD_OP_RTS2RTS_QP:
2502 if (raw_qp_param->set_mask)
2511 if (qp->rq.wqe_cnt) {
2512 err = modify_raw_packet_qp_rq(dev, rq, rq_state, raw_qp_param);
2517 if (qp->sq.wqe_cnt) {
2519 err = modify_raw_packet_tx_affinity(dev->mdev, sq,
2525 return modify_raw_packet_qp_sq(dev->mdev, sq, sq_state);
2531 static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
2532 const struct ib_qp_attr *attr, int attr_mask,
2533 enum ib_qp_state cur_state, enum ib_qp_state new_state)
2535 static const u16 optab[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE] = {
2536 [MLX5_QP_STATE_RST] = {
2537 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2538 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2539 [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_RST2INIT_QP,
2541 [MLX5_QP_STATE_INIT] = {
2542 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2543 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2544 [MLX5_QP_STATE_INIT] = MLX5_CMD_OP_INIT2INIT_QP,
2545 [MLX5_QP_STATE_RTR] = MLX5_CMD_OP_INIT2RTR_QP,
2547 [MLX5_QP_STATE_RTR] = {
2548 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2549 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2550 [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTR2RTS_QP,
2552 [MLX5_QP_STATE_RTS] = {
2553 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2554 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2555 [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_RTS2RTS_QP,
2557 [MLX5_QP_STATE_SQD] = {
2558 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2559 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2561 [MLX5_QP_STATE_SQER] = {
2562 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2563 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2564 [MLX5_QP_STATE_RTS] = MLX5_CMD_OP_SQERR2RTS_QP,
2566 [MLX5_QP_STATE_ERR] = {
2567 [MLX5_QP_STATE_RST] = MLX5_CMD_OP_2RST_QP,
2568 [MLX5_QP_STATE_ERR] = MLX5_CMD_OP_2ERR_QP,
2572 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
2573 struct mlx5_ib_qp *qp = to_mqp(ibqp);
2574 struct mlx5_ib_qp_base *base = &qp->trans_qp.base;
2575 struct mlx5_ib_cq *send_cq, *recv_cq;
2576 struct mlx5_qp_context *context;
2577 struct mlx5_ib_pd *pd;
2578 struct mlx5_ib_port *mibport = NULL;
2579 enum mlx5_qp_state mlx5_cur, mlx5_new;
2580 enum mlx5_qp_optpar optpar;
2587 context = kzalloc(sizeof(*context), GFP_KERNEL);
2591 err = to_mlx5_st(ibqp->qp_type);
2593 mlx5_ib_dbg(dev, "unsupported qp type %d\n", ibqp->qp_type);
2597 context->flags = cpu_to_be32(err << 16);
2599 if (!(attr_mask & IB_QP_PATH_MIG_STATE)) {
2600 context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
2602 switch (attr->path_mig_state) {
2603 case IB_MIG_MIGRATED:
2604 context->flags |= cpu_to_be32(MLX5_QP_PM_MIGRATED << 11);
2607 context->flags |= cpu_to_be32(MLX5_QP_PM_REARM << 11);
2610 context->flags |= cpu_to_be32(MLX5_QP_PM_ARMED << 11);
2615 if ((cur_state == IB_QPS_RESET) && (new_state == IB_QPS_INIT)) {
2616 if ((ibqp->qp_type == IB_QPT_RC) ||
2617 (ibqp->qp_type == IB_QPT_UD &&
2618 !(qp->flags & MLX5_IB_QP_SQPN_QP1)) ||
2619 (ibqp->qp_type == IB_QPT_UC) ||
2620 (ibqp->qp_type == IB_QPT_RAW_PACKET) ||
2621 (ibqp->qp_type == IB_QPT_XRC_INI) ||
2622 (ibqp->qp_type == IB_QPT_XRC_TGT)) {
2623 if (mlx5_lag_is_active(dev->mdev)) {
2624 tx_affinity = (unsigned int)atomic_add_return(1,
2625 &dev->roce.next_port) %
2627 context->flags |= cpu_to_be32(tx_affinity << 24);
2632 if (is_sqp(ibqp->qp_type)) {
2633 context->mtu_msgmax = (IB_MTU_256 << 5) | 8;
2634 } else if (ibqp->qp_type == IB_QPT_UD ||
2635 ibqp->qp_type == MLX5_IB_QPT_REG_UMR) {
2636 context->mtu_msgmax = (IB_MTU_4096 << 5) | 12;
2637 } else if (attr_mask & IB_QP_PATH_MTU) {
2638 if (attr->path_mtu < IB_MTU_256 ||
2639 attr->path_mtu > IB_MTU_4096) {
2640 mlx5_ib_warn(dev, "invalid mtu %d\n", attr->path_mtu);
2644 context->mtu_msgmax = (attr->path_mtu << 5) |
2645 (u8)MLX5_CAP_GEN(dev->mdev, log_max_msg);
2648 if (attr_mask & IB_QP_DEST_QPN)
2649 context->log_pg_sz_remote_qpn = cpu_to_be32(attr->dest_qp_num);
2651 if (attr_mask & IB_QP_PKEY_INDEX)
2652 context->pri_path.pkey_index = cpu_to_be16(attr->pkey_index);
2654 /* todo implement counter_index functionality */
2656 if (is_sqp(ibqp->qp_type))
2657 context->pri_path.port = qp->port;
2659 if (attr_mask & IB_QP_PORT)
2660 context->pri_path.port = attr->port_num;
2662 if (attr_mask & IB_QP_AV) {
2663 err = mlx5_set_path(dev, qp, &attr->ah_attr, &context->pri_path,
2664 attr_mask & IB_QP_PORT ? attr->port_num : qp->port,
2665 attr_mask, 0, attr, false);
2670 if (attr_mask & IB_QP_TIMEOUT)
2671 context->pri_path.ackto_lt |= attr->timeout << 3;
2673 if (attr_mask & IB_QP_ALT_PATH) {
2674 err = mlx5_set_path(dev, qp, &attr->alt_ah_attr,
2677 attr_mask | IB_QP_PKEY_INDEX | IB_QP_TIMEOUT,
2684 get_cqs(qp->ibqp.qp_type, qp->ibqp.send_cq, qp->ibqp.recv_cq,
2685 &send_cq, &recv_cq);
2687 context->flags_pd = cpu_to_be32(pd ? pd->pdn : to_mpd(dev->devr.p0)->pdn);
2688 context->cqn_send = send_cq ? cpu_to_be32(send_cq->mcq.cqn) : 0;
2689 context->cqn_recv = recv_cq ? cpu_to_be32(recv_cq->mcq.cqn) : 0;
2690 context->params1 = cpu_to_be32(MLX5_IB_ACK_REQ_FREQ << 28);
2692 if (attr_mask & IB_QP_RNR_RETRY)
2693 context->params1 |= cpu_to_be32(attr->rnr_retry << 13);
2695 if (attr_mask & IB_QP_RETRY_CNT)
2696 context->params1 |= cpu_to_be32(attr->retry_cnt << 16);
2698 if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
2699 if (attr->max_rd_atomic)
2701 cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21);
2704 if (attr_mask & IB_QP_SQ_PSN)
2705 context->next_send_psn = cpu_to_be32(attr->sq_psn);
2707 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
2708 if (attr->max_dest_rd_atomic)
2710 cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21);
2713 if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC))
2714 context->params2 |= to_mlx5_access_flags(qp, attr, attr_mask);
2716 if (attr_mask & IB_QP_MIN_RNR_TIMER)
2717 context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24);
2719 if (attr_mask & IB_QP_RQ_PSN)
2720 context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn);
2722 if (attr_mask & IB_QP_QKEY)
2723 context->qkey = cpu_to_be32(attr->qkey);
2725 if (qp->rq.wqe_cnt && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
2726 context->db_rec_addr = cpu_to_be64(qp->db.dma);
2728 if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD &&
2729 attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify)
2734 if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
2735 u8 port_num = (attr_mask & IB_QP_PORT ? attr->port_num :
2737 mibport = &dev->port[port_num];
2738 context->qp_counter_set_usr_page |=
2739 cpu_to_be32((u32)(mibport->q_cnt_id) << 24);
2742 if (!ibqp->uobject && cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
2743 context->sq_crq_size |= cpu_to_be16(1 << 4);
2745 if (qp->flags & MLX5_IB_QP_SQPN_QP1)
2746 context->deth_sqpn = cpu_to_be32(1);
2748 mlx5_cur = to_mlx5_state(cur_state);
2749 mlx5_new = to_mlx5_state(new_state);
2750 mlx5_st = to_mlx5_st(ibqp->qp_type);
2754 /* If moving to a reset or error state, we must disable page faults on
2755 * this QP and flush all current page faults. Otherwise a stale page
2756 * fault may attempt to work on this QP after it is reset and moved
2757 * again to RTS, and may cause the driver and the device to get out of
2759 if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR &&
2760 (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR) &&
2761 (qp->ibqp.qp_type != IB_QPT_RAW_PACKET))
2762 mlx5_ib_qp_disable_pagefaults(qp);
2764 if (mlx5_cur >= MLX5_QP_NUM_STATE || mlx5_new >= MLX5_QP_NUM_STATE ||
2765 !optab[mlx5_cur][mlx5_new])
2768 op = optab[mlx5_cur][mlx5_new];
2769 optpar = ib_mask_to_mlx5_opt(attr_mask);
2770 optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st];
2772 if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
2773 struct mlx5_modify_raw_qp_param raw_qp_param = {};
2775 raw_qp_param.operation = op;
2776 if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) {
2777 raw_qp_param.rq_q_ctr_id = mibport->q_cnt_id;
2778 raw_qp_param.set_mask |= MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID;
2780 err = modify_raw_packet_qp(dev, qp, &raw_qp_param, tx_affinity);
2782 err = mlx5_core_qp_modify(dev->mdev, op, optpar, context,
2789 if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT &&
2790 (qp->ibqp.qp_type != IB_QPT_RAW_PACKET))
2791 mlx5_ib_qp_enable_pagefaults(qp);
2793 qp->state = new_state;
2795 if (attr_mask & IB_QP_ACCESS_FLAGS)
2796 qp->trans_qp.atomic_rd_en = attr->qp_access_flags;
2797 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
2798 qp->trans_qp.resp_depth = attr->max_dest_rd_atomic;
2799 if (attr_mask & IB_QP_PORT)
2800 qp->port = attr->port_num;
2801 if (attr_mask & IB_QP_ALT_PATH)
2802 qp->trans_qp.alt_port = attr->alt_port_num;
2805 * If we moved a kernel QP to RESET, clean up all old CQ
2806 * entries and reinitialize the QP.
2808 if (new_state == IB_QPS_RESET && !ibqp->uobject) {
2809 mlx5_ib_cq_clean(recv_cq, base->mqp.qpn,
2810 ibqp->srq ? to_msrq(ibqp->srq) : NULL);
2811 if (send_cq != recv_cq)
2812 mlx5_ib_cq_clean(send_cq, base->mqp.qpn, NULL);
2818 qp->sq.cur_post = 0;
2819 qp->sq.last_poll = 0;
2820 qp->db.db[MLX5_RCV_DBR] = 0;
2821 qp->db.db[MLX5_SND_DBR] = 0;
2829 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
2830 int attr_mask, struct ib_udata *udata)
2832 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
2833 struct mlx5_ib_qp *qp = to_mqp(ibqp);
2834 enum ib_qp_type qp_type;
2835 enum ib_qp_state cur_state, new_state;
2838 enum rdma_link_layer ll = IB_LINK_LAYER_UNSPECIFIED;
2840 if (ibqp->rwq_ind_tbl)
2843 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
2844 return mlx5_ib_gsi_modify_qp(ibqp, attr, attr_mask);
2846 qp_type = (unlikely(ibqp->qp_type == MLX5_IB_QPT_HW_GSI)) ?
2847 IB_QPT_GSI : ibqp->qp_type;
2849 mutex_lock(&qp->mutex);
2851 cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
2852 new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
2854 if (!(cur_state == new_state && cur_state == IB_QPS_RESET)) {
2855 port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
2856 ll = dev->ib_dev.get_link_layer(&dev->ib_dev, port);
2859 if (qp_type != MLX5_IB_QPT_REG_UMR &&
2860 !ib_modify_qp_is_ok(cur_state, new_state, qp_type, attr_mask, ll)) {
2861 mlx5_ib_dbg(dev, "invalid QP state transition from %d to %d, qp_type %d, attr_mask 0x%x\n",
2862 cur_state, new_state, ibqp->qp_type, attr_mask);
2866 if ((attr_mask & IB_QP_PORT) &&
2867 (attr->port_num == 0 ||
2868 attr->port_num > MLX5_CAP_GEN(dev->mdev, num_ports))) {
2869 mlx5_ib_dbg(dev, "invalid port number %d. number of ports is %d\n",
2870 attr->port_num, dev->num_ports);
2874 if (attr_mask & IB_QP_PKEY_INDEX) {
2875 port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
2876 if (attr->pkey_index >=
2877 dev->mdev->port_caps[port - 1].pkey_table_len) {
2878 mlx5_ib_dbg(dev, "invalid pkey index %d\n",
2884 if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
2885 attr->max_rd_atomic >
2886 (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_res_qp))) {
2887 mlx5_ib_dbg(dev, "invalid max_rd_atomic value %d\n",
2888 attr->max_rd_atomic);
2892 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
2893 attr->max_dest_rd_atomic >
2894 (1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_req_qp))) {
2895 mlx5_ib_dbg(dev, "invalid max_dest_rd_atomic value %d\n",
2896 attr->max_dest_rd_atomic);
2900 if (cur_state == new_state && cur_state == IB_QPS_RESET) {
2905 err = __mlx5_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
2908 mutex_unlock(&qp->mutex);
2912 static int mlx5_wq_overflow(struct mlx5_ib_wq *wq, int nreq, struct ib_cq *ib_cq)
2914 struct mlx5_ib_cq *cq;
2917 cur = wq->head - wq->tail;
2918 if (likely(cur + nreq < wq->max_post))
2922 spin_lock(&cq->lock);
2923 cur = wq->head - wq->tail;
2924 spin_unlock(&cq->lock);
2926 return cur + nreq >= wq->max_post;
2929 static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg,
2930 u64 remote_addr, u32 rkey)
2932 rseg->raddr = cpu_to_be64(remote_addr);
2933 rseg->rkey = cpu_to_be32(rkey);
2937 static void *set_eth_seg(struct mlx5_wqe_eth_seg *eseg,
2938 struct ib_send_wr *wr, void *qend,
2939 struct mlx5_ib_qp *qp, int *size)
2943 memset(eseg, 0, sizeof(struct mlx5_wqe_eth_seg));
2945 if (wr->send_flags & IB_SEND_IP_CSUM)
2946 eseg->cs_flags = MLX5_ETH_WQE_L3_CSUM |
2947 MLX5_ETH_WQE_L4_CSUM;
2949 seg += sizeof(struct mlx5_wqe_eth_seg);
2950 *size += sizeof(struct mlx5_wqe_eth_seg) / 16;
2952 if (wr->opcode == IB_WR_LSO) {
2953 struct ib_ud_wr *ud_wr = container_of(wr, struct ib_ud_wr, wr);
2954 int size_of_inl_hdr_start = sizeof(eseg->inline_hdr_start);
2955 u64 left, leftlen, copysz;
2956 void *pdata = ud_wr->header;
2959 eseg->mss = cpu_to_be16(ud_wr->mss);
2960 eseg->inline_hdr_sz = cpu_to_be16(left);
2963 * check if there is space till the end of queue, if yes,
2964 * copy all in one shot, otherwise copy till the end of queue,
2965 * rollback and than the copy the left
2967 leftlen = qend - (void *)eseg->inline_hdr_start;
2968 copysz = min_t(u64, leftlen, left);
2970 memcpy(seg - size_of_inl_hdr_start, pdata, copysz);
2972 if (likely(copysz > size_of_inl_hdr_start)) {
2973 seg += ALIGN(copysz - size_of_inl_hdr_start, 16);
2974 *size += ALIGN(copysz - size_of_inl_hdr_start, 16) / 16;
2977 if (unlikely(copysz < left)) { /* the last wqe in the queue */
2978 seg = mlx5_get_send_wqe(qp, 0);
2981 memcpy(seg, pdata, left);
2982 seg += ALIGN(left, 16);
2983 *size += ALIGN(left, 16) / 16;
2990 static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg,
2991 struct ib_send_wr *wr)
2993 memcpy(&dseg->av, &to_mah(ud_wr(wr)->ah)->av, sizeof(struct mlx5_av));
2994 dseg->av.dqp_dct = cpu_to_be32(ud_wr(wr)->remote_qpn | MLX5_EXTENDED_UD_AV);
2995 dseg->av.key.qkey.qkey = cpu_to_be32(ud_wr(wr)->remote_qkey);
2998 static void set_data_ptr_seg(struct mlx5_wqe_data_seg *dseg, struct ib_sge *sg)
3000 dseg->byte_count = cpu_to_be32(sg->length);
3001 dseg->lkey = cpu_to_be32(sg->lkey);
3002 dseg->addr = cpu_to_be64(sg->addr);
3005 static __be16 get_klm_octo(int npages)
3007 return cpu_to_be16(ALIGN(npages, 8) / 2);
3010 static __be64 frwr_mkey_mask(void)
3014 result = MLX5_MKEY_MASK_LEN |
3015 MLX5_MKEY_MASK_PAGE_SIZE |
3016 MLX5_MKEY_MASK_START_ADDR |
3017 MLX5_MKEY_MASK_EN_RINVAL |
3018 MLX5_MKEY_MASK_KEY |
3024 MLX5_MKEY_MASK_SMALL_FENCE |
3025 MLX5_MKEY_MASK_FREE;
3027 return cpu_to_be64(result);
3030 static __be64 sig_mkey_mask(void)
3034 result = MLX5_MKEY_MASK_LEN |
3035 MLX5_MKEY_MASK_PAGE_SIZE |
3036 MLX5_MKEY_MASK_START_ADDR |
3037 MLX5_MKEY_MASK_EN_SIGERR |
3038 MLX5_MKEY_MASK_EN_RINVAL |
3039 MLX5_MKEY_MASK_KEY |
3044 MLX5_MKEY_MASK_SMALL_FENCE |
3045 MLX5_MKEY_MASK_FREE |
3046 MLX5_MKEY_MASK_BSF_EN;
3048 return cpu_to_be64(result);
3051 static void set_reg_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr,
3052 struct mlx5_ib_mr *mr)
3054 int ndescs = mr->ndescs;
3056 memset(umr, 0, sizeof(*umr));
3058 if (mr->access_mode == MLX5_MKC_ACCESS_MODE_KLMS)
3059 /* KLMs take twice the size of MTTs */
3062 umr->flags = MLX5_UMR_CHECK_NOT_FREE;
3063 umr->klm_octowords = get_klm_octo(ndescs);
3064 umr->mkey_mask = frwr_mkey_mask();
3067 static void set_linv_umr_seg(struct mlx5_wqe_umr_ctrl_seg *umr)
3069 memset(umr, 0, sizeof(*umr));
3070 umr->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE);
3071 umr->flags = MLX5_UMR_INLINE;
3074 static __be64 get_umr_reg_mr_mask(int atomic)
3078 result = MLX5_MKEY_MASK_LEN |
3079 MLX5_MKEY_MASK_PAGE_SIZE |
3080 MLX5_MKEY_MASK_START_ADDR |
3084 MLX5_MKEY_MASK_KEY |
3087 MLX5_MKEY_MASK_FREE;
3090 result |= MLX5_MKEY_MASK_A;
3092 return cpu_to_be64(result);
3095 static __be64 get_umr_unreg_mr_mask(void)
3099 result = MLX5_MKEY_MASK_FREE;
3101 return cpu_to_be64(result);
3104 static __be64 get_umr_update_mtt_mask(void)
3108 result = MLX5_MKEY_MASK_FREE;
3110 return cpu_to_be64(result);
3113 static __be64 get_umr_update_translation_mask(void)
3117 result = MLX5_MKEY_MASK_LEN |
3118 MLX5_MKEY_MASK_PAGE_SIZE |
3119 MLX5_MKEY_MASK_START_ADDR |
3120 MLX5_MKEY_MASK_KEY |
3121 MLX5_MKEY_MASK_FREE;
3123 return cpu_to_be64(result);
3126 static __be64 get_umr_update_access_mask(void)
3130 result = MLX5_MKEY_MASK_LW |
3134 MLX5_MKEY_MASK_KEY |
3135 MLX5_MKEY_MASK_FREE;
3137 return cpu_to_be64(result);
3140 static __be64 get_umr_update_pd_mask(void)
3144 result = MLX5_MKEY_MASK_PD |
3145 MLX5_MKEY_MASK_KEY |
3146 MLX5_MKEY_MASK_FREE;
3148 return cpu_to_be64(result);
3151 static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr,
3152 struct ib_send_wr *wr, int atomic)
3154 struct mlx5_umr_wr *umrwr = umr_wr(wr);
3156 memset(umr, 0, sizeof(*umr));
3158 if (wr->send_flags & MLX5_IB_SEND_UMR_FAIL_IF_FREE)
3159 umr->flags = MLX5_UMR_CHECK_FREE; /* fail if free */
3161 umr->flags = MLX5_UMR_CHECK_NOT_FREE; /* fail if not free */
3163 if (!(wr->send_flags & MLX5_IB_SEND_UMR_UNREG)) {
3164 umr->klm_octowords = get_klm_octo(umrwr->npages);
3165 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT) {
3166 umr->mkey_mask = get_umr_update_mtt_mask();
3167 umr->bsf_octowords = get_klm_octo(umrwr->target.offset);
3168 umr->flags |= MLX5_UMR_TRANSLATION_OFFSET_EN;
3170 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_TRANSLATION)
3171 umr->mkey_mask |= get_umr_update_translation_mask();
3172 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_ACCESS)
3173 umr->mkey_mask |= get_umr_update_access_mask();
3174 if (wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_PD)
3175 umr->mkey_mask |= get_umr_update_pd_mask();
3176 if (!umr->mkey_mask)
3177 umr->mkey_mask = get_umr_reg_mr_mask(atomic);
3179 umr->mkey_mask = get_umr_unreg_mr_mask();
3183 umr->flags |= MLX5_UMR_INLINE;
3186 static u8 get_umr_flags(int acc)
3188 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) |
3189 (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) |
3190 (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) |
3191 (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) |
3192 MLX5_PERM_LOCAL_READ | MLX5_PERM_UMR_EN;
3195 static void set_reg_mkey_seg(struct mlx5_mkey_seg *seg,
3196 struct mlx5_ib_mr *mr,
3197 u32 key, int access)
3199 int ndescs = ALIGN(mr->ndescs, 8) >> 1;
3201 memset(seg, 0, sizeof(*seg));
3203 if (mr->access_mode == MLX5_MKC_ACCESS_MODE_MTT)
3204 seg->log2_page_size = ilog2(mr->ibmr.page_size);
3205 else if (mr->access_mode == MLX5_MKC_ACCESS_MODE_KLMS)
3206 /* KLMs take twice the size of MTTs */
3209 seg->flags = get_umr_flags(access) | mr->access_mode;
3210 seg->qpn_mkey7_0 = cpu_to_be32((key & 0xff) | 0xffffff00);
3211 seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL);
3212 seg->start_addr = cpu_to_be64(mr->ibmr.iova);
3213 seg->len = cpu_to_be64(mr->ibmr.length);
3214 seg->xlt_oct_size = cpu_to_be32(ndescs);
3217 static void set_linv_mkey_seg(struct mlx5_mkey_seg *seg)
3219 memset(seg, 0, sizeof(*seg));
3220 seg->status = MLX5_MKEY_STATUS_FREE;
3223 static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *wr)
3225 struct mlx5_umr_wr *umrwr = umr_wr(wr);
3227 memset(seg, 0, sizeof(*seg));
3228 if (wr->send_flags & MLX5_IB_SEND_UMR_UNREG) {
3229 seg->status = MLX5_MKEY_STATUS_FREE;
3233 seg->flags = convert_access(umrwr->access_flags);
3234 if (!(wr->send_flags & MLX5_IB_SEND_UMR_UPDATE_MTT)) {
3236 seg->flags_pd = cpu_to_be32(to_mpd(umrwr->pd)->pdn);
3237 seg->start_addr = cpu_to_be64(umrwr->target.virt_addr);
3239 seg->len = cpu_to_be64(umrwr->length);
3240 seg->log2_page_size = umrwr->page_shift;
3241 seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 |
3242 mlx5_mkey_variant(umrwr->mkey));
3245 static void set_reg_data_seg(struct mlx5_wqe_data_seg *dseg,
3246 struct mlx5_ib_mr *mr,
3247 struct mlx5_ib_pd *pd)
3249 int bcount = mr->desc_size * mr->ndescs;
3251 dseg->addr = cpu_to_be64(mr->desc_map);
3252 dseg->byte_count = cpu_to_be32(ALIGN(bcount, 64));
3253 dseg->lkey = cpu_to_be32(pd->ibpd.local_dma_lkey);
3256 static __be32 send_ieth(struct ib_send_wr *wr)
3258 switch (wr->opcode) {
3259 case IB_WR_SEND_WITH_IMM:
3260 case IB_WR_RDMA_WRITE_WITH_IMM:
3261 return wr->ex.imm_data;
3263 case IB_WR_SEND_WITH_INV:
3264 return cpu_to_be32(wr->ex.invalidate_rkey);
3271 static u8 calc_sig(void *wqe, int size)
3277 for (i = 0; i < size; i++)
3283 static u8 wq_sig(void *wqe)
3285 return calc_sig(wqe, (*((u8 *)wqe + 8) & 0x3f) << 4);
3288 static int set_data_inl_seg(struct mlx5_ib_qp *qp, struct ib_send_wr *wr,
3291 struct mlx5_wqe_inline_seg *seg;
3292 void *qend = qp->sq.qend;
3300 wqe += sizeof(*seg);
3301 for (i = 0; i < wr->num_sge; i++) {
3302 addr = (void *)(unsigned long)(wr->sg_list[i].addr);
3303 len = wr->sg_list[i].length;
3306 if (unlikely(inl > qp->max_inline_data))
3309 if (unlikely(wqe + len > qend)) {
3311 memcpy(wqe, addr, copy);
3314 wqe = mlx5_get_send_wqe(qp, 0);
3316 memcpy(wqe, addr, len);
3320 seg->byte_count = cpu_to_be32(inl | MLX5_INLINE_SEG);
3322 *sz = ALIGN(inl + sizeof(seg->byte_count), 16) / 16;
3327 static u16 prot_field_size(enum ib_signature_type type)
3330 case IB_SIG_TYPE_T10_DIF:
3331 return MLX5_DIF_SIZE;
3337 static u8 bs_selector(int block_size)
3339 switch (block_size) {
3340 case 512: return 0x1;
3341 case 520: return 0x2;
3342 case 4096: return 0x3;
3343 case 4160: return 0x4;
3344 case 1073741824: return 0x5;
3349 static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain,
3350 struct mlx5_bsf_inl *inl)
3352 /* Valid inline section and allow BSF refresh */
3353 inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID |
3354 MLX5_BSF_REFRESH_DIF);
3355 inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag);
3356 inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag);
3357 /* repeating block */
3358 inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK;
3359 inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ?
3360 MLX5_DIF_CRC : MLX5_DIF_IPCS;
3362 if (domain->sig.dif.ref_remap)
3363 inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG;
3365 if (domain->sig.dif.app_escape) {
3366 if (domain->sig.dif.ref_escape)
3367 inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE;
3369 inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE;
3372 inl->dif_app_bitmask_check =
3373 cpu_to_be16(domain->sig.dif.apptag_check_mask);
3376 static int mlx5_set_bsf(struct ib_mr *sig_mr,
3377 struct ib_sig_attrs *sig_attrs,
3378 struct mlx5_bsf *bsf, u32 data_size)
3380 struct mlx5_core_sig_ctx *msig = to_mmr(sig_mr)->sig;
3381 struct mlx5_bsf_basic *basic = &bsf->basic;
3382 struct ib_sig_domain *mem = &sig_attrs->mem;
3383 struct ib_sig_domain *wire = &sig_attrs->wire;
3385 memset(bsf, 0, sizeof(*bsf));
3387 /* Basic + Extended + Inline */
3388 basic->bsf_size_sbs = 1 << 7;
3389 /* Input domain check byte mask */
3390 basic->check_byte_mask = sig_attrs->check_mask;
3391 basic->raw_data_size = cpu_to_be32(data_size);
3394 switch (sig_attrs->mem.sig_type) {
3395 case IB_SIG_TYPE_NONE:
3397 case IB_SIG_TYPE_T10_DIF:
3398 basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval);
3399 basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx);
3400 mlx5_fill_inl_bsf(mem, &bsf->m_inl);
3407 switch (sig_attrs->wire.sig_type) {
3408 case IB_SIG_TYPE_NONE:
3410 case IB_SIG_TYPE_T10_DIF:
3411 if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval &&
3412 mem->sig_type == wire->sig_type) {
3413 /* Same block structure */
3414 basic->bsf_size_sbs |= 1 << 4;
3415 if (mem->sig.dif.bg_type == wire->sig.dif.bg_type)
3416 basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK;
3417 if (mem->sig.dif.app_tag == wire->sig.dif.app_tag)
3418 basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK;
3419 if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag)
3420 basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK;
3422 basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval);
3424 basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx);
3425 mlx5_fill_inl_bsf(wire, &bsf->w_inl);
3434 static int set_sig_data_segment(struct ib_sig_handover_wr *wr,
3435 struct mlx5_ib_qp *qp, void **seg, int *size)
3437 struct ib_sig_attrs *sig_attrs = wr->sig_attrs;
3438 struct ib_mr *sig_mr = wr->sig_mr;
3439 struct mlx5_bsf *bsf;
3440 u32 data_len = wr->wr.sg_list->length;
3441 u32 data_key = wr->wr.sg_list->lkey;
3442 u64 data_va = wr->wr.sg_list->addr;
3447 (data_key == wr->prot->lkey &&
3448 data_va == wr->prot->addr &&
3449 data_len == wr->prot->length)) {
3451 * Source domain doesn't contain signature information
3452 * or data and protection are interleaved in memory.
3453 * So need construct:
3454 * ------------------
3456 * ------------------
3458 * ------------------
3460 struct mlx5_klm *data_klm = *seg;
3462 data_klm->bcount = cpu_to_be32(data_len);
3463 data_klm->key = cpu_to_be32(data_key);
3464 data_klm->va = cpu_to_be64(data_va);
3465 wqe_size = ALIGN(sizeof(*data_klm), 64);
3468 * Source domain contains signature information
3469 * So need construct a strided block format:
3470 * ---------------------------
3471 * | stride_block_ctrl |
3472 * ---------------------------
3474 * ---------------------------
3476 * ---------------------------
3478 * ---------------------------
3480 struct mlx5_stride_block_ctrl_seg *sblock_ctrl;
3481 struct mlx5_stride_block_entry *data_sentry;
3482 struct mlx5_stride_block_entry *prot_sentry;
3483 u32 prot_key = wr->prot->lkey;
3484 u64 prot_va = wr->prot->addr;
3485 u16 block_size = sig_attrs->mem.sig.dif.pi_interval;
3489 data_sentry = (void *)sblock_ctrl + sizeof(*sblock_ctrl);
3490 prot_sentry = (void *)data_sentry + sizeof(*data_sentry);
3492 prot_size = prot_field_size(sig_attrs->mem.sig_type);
3494 pr_err("Bad block size given: %u\n", block_size);
3497 sblock_ctrl->bcount_per_cycle = cpu_to_be32(block_size +
3499 sblock_ctrl->op = cpu_to_be32(MLX5_STRIDE_BLOCK_OP);
3500 sblock_ctrl->repeat_count = cpu_to_be32(data_len / block_size);
3501 sblock_ctrl->num_entries = cpu_to_be16(2);
3503 data_sentry->bcount = cpu_to_be16(block_size);
3504 data_sentry->key = cpu_to_be32(data_key);
3505 data_sentry->va = cpu_to_be64(data_va);
3506 data_sentry->stride = cpu_to_be16(block_size);
3508 prot_sentry->bcount = cpu_to_be16(prot_size);
3509 prot_sentry->key = cpu_to_be32(prot_key);
3510 prot_sentry->va = cpu_to_be64(prot_va);
3511 prot_sentry->stride = cpu_to_be16(prot_size);
3513 wqe_size = ALIGN(sizeof(*sblock_ctrl) + sizeof(*data_sentry) +
3514 sizeof(*prot_sentry), 64);
3518 *size += wqe_size / 16;
3519 if (unlikely((*seg == qp->sq.qend)))
3520 *seg = mlx5_get_send_wqe(qp, 0);
3523 ret = mlx5_set_bsf(sig_mr, sig_attrs, bsf, data_len);
3527 *seg += sizeof(*bsf);
3528 *size += sizeof(*bsf) / 16;
3529 if (unlikely((*seg == qp->sq.qend)))
3530 *seg = mlx5_get_send_wqe(qp, 0);
3535 static void set_sig_mkey_segment(struct mlx5_mkey_seg *seg,
3536 struct ib_sig_handover_wr *wr, u32 nelements,
3537 u32 length, u32 pdn)
3539 struct ib_mr *sig_mr = wr->sig_mr;
3540 u32 sig_key = sig_mr->rkey;
3541 u8 sigerr = to_mmr(sig_mr)->sig->sigerr_count & 1;
3543 memset(seg, 0, sizeof(*seg));
3545 seg->flags = get_umr_flags(wr->access_flags) |
3546 MLX5_MKC_ACCESS_MODE_KLMS;
3547 seg->qpn_mkey7_0 = cpu_to_be32((sig_key & 0xff) | 0xffffff00);
3548 seg->flags_pd = cpu_to_be32(MLX5_MKEY_REMOTE_INVAL | sigerr << 26 |
3549 MLX5_MKEY_BSF_EN | pdn);
3550 seg->len = cpu_to_be64(length);
3551 seg->xlt_oct_size = cpu_to_be32(be16_to_cpu(get_klm_octo(nelements)));
3552 seg->bsfs_octo_size = cpu_to_be32(MLX5_MKEY_BSF_OCTO_SIZE);
3555 static void set_sig_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr,
3558 memset(umr, 0, sizeof(*umr));
3560 umr->flags = MLX5_FLAGS_INLINE | MLX5_FLAGS_CHECK_FREE;
3561 umr->klm_octowords = get_klm_octo(nelements);
3562 umr->bsf_octowords = cpu_to_be16(MLX5_MKEY_BSF_OCTO_SIZE);
3563 umr->mkey_mask = sig_mkey_mask();
3567 static int set_sig_umr_wr(struct ib_send_wr *send_wr, struct mlx5_ib_qp *qp,
3568 void **seg, int *size)
3570 struct ib_sig_handover_wr *wr = sig_handover_wr(send_wr);
3571 struct mlx5_ib_mr *sig_mr = to_mmr(wr->sig_mr);
3572 u32 pdn = get_pd(qp)->pdn;
3574 int region_len, ret;
3576 if (unlikely(wr->wr.num_sge != 1) ||
3577 unlikely(wr->access_flags & IB_ACCESS_REMOTE_ATOMIC) ||
3578 unlikely(!sig_mr->sig) || unlikely(!qp->signature_en) ||
3579 unlikely(!sig_mr->sig->sig_status_checked))
3582 /* length of the protected region, data + protection */
3583 region_len = wr->wr.sg_list->length;
3585 (wr->prot->lkey != wr->wr.sg_list->lkey ||
3586 wr->prot->addr != wr->wr.sg_list->addr ||
3587 wr->prot->length != wr->wr.sg_list->length))
3588 region_len += wr->prot->length;
3591 * KLM octoword size - if protection was provided
3592 * then we use strided block format (3 octowords),
3593 * else we use single KLM (1 octoword)
3595 klm_oct_size = wr->prot ? 3 : 1;
3597 set_sig_umr_segment(*seg, klm_oct_size);
3598 *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
3599 *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
3600 if (unlikely((*seg == qp->sq.qend)))
3601 *seg = mlx5_get_send_wqe(qp, 0);
3603 set_sig_mkey_segment(*seg, wr, klm_oct_size, region_len, pdn);
3604 *seg += sizeof(struct mlx5_mkey_seg);
3605 *size += sizeof(struct mlx5_mkey_seg) / 16;
3606 if (unlikely((*seg == qp->sq.qend)))
3607 *seg = mlx5_get_send_wqe(qp, 0);
3609 ret = set_sig_data_segment(wr, qp, seg, size);
3613 sig_mr->sig->sig_status_checked = false;
3617 static int set_psv_wr(struct ib_sig_domain *domain,
3618 u32 psv_idx, void **seg, int *size)
3620 struct mlx5_seg_set_psv *psv_seg = *seg;
3622 memset(psv_seg, 0, sizeof(*psv_seg));
3623 psv_seg->psv_num = cpu_to_be32(psv_idx);
3624 switch (domain->sig_type) {
3625 case IB_SIG_TYPE_NONE:
3627 case IB_SIG_TYPE_T10_DIF:
3628 psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 |
3629 domain->sig.dif.app_tag);
3630 psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag);
3633 pr_err("Bad signature type given.\n");
3637 *seg += sizeof(*psv_seg);
3638 *size += sizeof(*psv_seg) / 16;
3643 static int set_reg_wr(struct mlx5_ib_qp *qp,
3644 struct ib_reg_wr *wr,
3645 void **seg, int *size)
3647 struct mlx5_ib_mr *mr = to_mmr(wr->mr);
3648 struct mlx5_ib_pd *pd = to_mpd(qp->ibqp.pd);
3650 if (unlikely(wr->wr.send_flags & IB_SEND_INLINE)) {
3651 mlx5_ib_warn(to_mdev(qp->ibqp.device),
3652 "Invalid IB_SEND_INLINE send flag\n");
3656 set_reg_umr_seg(*seg, mr);
3657 *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
3658 *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
3659 if (unlikely((*seg == qp->sq.qend)))
3660 *seg = mlx5_get_send_wqe(qp, 0);
3662 set_reg_mkey_seg(*seg, mr, wr->key, wr->access);
3663 *seg += sizeof(struct mlx5_mkey_seg);
3664 *size += sizeof(struct mlx5_mkey_seg) / 16;
3665 if (unlikely((*seg == qp->sq.qend)))
3666 *seg = mlx5_get_send_wqe(qp, 0);
3668 set_reg_data_seg(*seg, mr, pd);
3669 *seg += sizeof(struct mlx5_wqe_data_seg);
3670 *size += (sizeof(struct mlx5_wqe_data_seg) / 16);
3675 static void set_linv_wr(struct mlx5_ib_qp *qp, void **seg, int *size)
3677 set_linv_umr_seg(*seg);
3678 *seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
3679 *size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
3680 if (unlikely((*seg == qp->sq.qend)))
3681 *seg = mlx5_get_send_wqe(qp, 0);
3682 set_linv_mkey_seg(*seg);
3683 *seg += sizeof(struct mlx5_mkey_seg);
3684 *size += sizeof(struct mlx5_mkey_seg) / 16;
3685 if (unlikely((*seg == qp->sq.qend)))
3686 *seg = mlx5_get_send_wqe(qp, 0);
3689 static void dump_wqe(struct mlx5_ib_qp *qp, int idx, int size_16)
3695 pr_debug("dump wqe at %p\n", mlx5_get_send_wqe(qp, tidx));
3696 for (i = 0, j = 0; i < size_16 * 4; i += 4, j += 4) {
3697 if ((i & 0xf) == 0) {
3698 void *buf = mlx5_get_send_wqe(qp, tidx);
3699 tidx = (tidx + 1) & (qp->sq.wqe_cnt - 1);
3703 pr_debug("%08x %08x %08x %08x\n", be32_to_cpu(p[j]),
3704 be32_to_cpu(p[j + 1]), be32_to_cpu(p[j + 2]),
3705 be32_to_cpu(p[j + 3]));
3709 static void mlx5_bf_copy(u64 __iomem *dst, u64 *src,
3710 unsigned bytecnt, struct mlx5_ib_qp *qp)
3712 while (bytecnt > 0) {
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);
3718 __iowrite64_copy(dst++, src++, 8);
3719 __iowrite64_copy(dst++, src++, 8);
3720 __iowrite64_copy(dst++, src++, 8);
3722 if (unlikely(src == qp->sq.qend))
3723 src = mlx5_get_send_wqe(qp, 0);
3727 static u8 get_fence(u8 fence, struct ib_send_wr *wr)
3729 if (unlikely(wr->opcode == IB_WR_LOCAL_INV &&
3730 wr->send_flags & IB_SEND_FENCE))
3731 return MLX5_FENCE_MODE_STRONG_ORDERING;
3733 if (unlikely(fence)) {
3734 if (wr->send_flags & IB_SEND_FENCE)
3735 return MLX5_FENCE_MODE_SMALL_AND_FENCE;
3738 } else if (unlikely(wr->send_flags & IB_SEND_FENCE)) {
3739 return MLX5_FENCE_MODE_FENCE;
3745 static int begin_wqe(struct mlx5_ib_qp *qp, void **seg,
3746 struct mlx5_wqe_ctrl_seg **ctrl,
3747 struct ib_send_wr *wr, unsigned *idx,
3748 int *size, int nreq)
3750 if (unlikely(mlx5_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq)))
3753 *idx = qp->sq.cur_post & (qp->sq.wqe_cnt - 1);
3754 *seg = mlx5_get_send_wqe(qp, *idx);
3756 *(uint32_t *)(*seg + 8) = 0;
3757 (*ctrl)->imm = send_ieth(wr);
3758 (*ctrl)->fm_ce_se = qp->sq_signal_bits |
3759 (wr->send_flags & IB_SEND_SIGNALED ?
3760 MLX5_WQE_CTRL_CQ_UPDATE : 0) |
3761 (wr->send_flags & IB_SEND_SOLICITED ?
3762 MLX5_WQE_CTRL_SOLICITED : 0);
3764 *seg += sizeof(**ctrl);
3765 *size = sizeof(**ctrl) / 16;
3770 static void finish_wqe(struct mlx5_ib_qp *qp,
3771 struct mlx5_wqe_ctrl_seg *ctrl,
3772 u8 size, unsigned idx, u64 wr_id,
3773 int nreq, u8 fence, u8 next_fence,
3778 ctrl->opmod_idx_opcode = cpu_to_be32(((u32)(qp->sq.cur_post) << 8) |
3779 mlx5_opcode | ((u32)opmod << 24));
3780 ctrl->qpn_ds = cpu_to_be32(size | (qp->trans_qp.base.mqp.qpn << 8));
3781 ctrl->fm_ce_se |= fence;
3782 qp->fm_cache = next_fence;
3783 if (unlikely(qp->wq_sig))
3784 ctrl->signature = wq_sig(ctrl);
3786 qp->sq.wrid[idx] = wr_id;
3787 qp->sq.w_list[idx].opcode = mlx5_opcode;
3788 qp->sq.wqe_head[idx] = qp->sq.head + nreq;
3789 qp->sq.cur_post += DIV_ROUND_UP(size * 16, MLX5_SEND_WQE_BB);
3790 qp->sq.w_list[idx].next = qp->sq.cur_post;
3794 int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
3795 struct ib_send_wr **bad_wr)
3797 struct mlx5_wqe_ctrl_seg *ctrl = NULL; /* compiler warning */
3798 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
3799 struct mlx5_core_dev *mdev = dev->mdev;
3800 struct mlx5_ib_qp *qp;
3801 struct mlx5_ib_mr *mr;
3802 struct mlx5_wqe_data_seg *dpseg;
3803 struct mlx5_wqe_xrc_seg *xrc;
3805 int uninitialized_var(size);
3807 unsigned long flags;
3818 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
3819 return mlx5_ib_gsi_post_send(ibqp, wr, bad_wr);
3825 spin_lock_irqsave(&qp->sq.lock, flags);
3827 if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
3834 for (nreq = 0; wr; nreq++, wr = wr->next) {
3835 if (unlikely(wr->opcode >= ARRAY_SIZE(mlx5_ib_opcode))) {
3836 mlx5_ib_warn(dev, "\n");
3842 fence = qp->fm_cache;
3843 num_sge = wr->num_sge;
3844 if (unlikely(num_sge > qp->sq.max_gs)) {
3845 mlx5_ib_warn(dev, "\n");
3851 err = begin_wqe(qp, &seg, &ctrl, wr, &idx, &size, nreq);
3853 mlx5_ib_warn(dev, "\n");
3859 switch (ibqp->qp_type) {
3860 case IB_QPT_XRC_INI:
3862 seg += sizeof(*xrc);
3863 size += sizeof(*xrc) / 16;
3866 switch (wr->opcode) {
3867 case IB_WR_RDMA_READ:
3868 case IB_WR_RDMA_WRITE:
3869 case IB_WR_RDMA_WRITE_WITH_IMM:
3870 set_raddr_seg(seg, rdma_wr(wr)->remote_addr,
3872 seg += sizeof(struct mlx5_wqe_raddr_seg);
3873 size += sizeof(struct mlx5_wqe_raddr_seg) / 16;
3876 case IB_WR_ATOMIC_CMP_AND_SWP:
3877 case IB_WR_ATOMIC_FETCH_AND_ADD:
3878 case IB_WR_MASKED_ATOMIC_CMP_AND_SWP:
3879 mlx5_ib_warn(dev, "Atomic operations are not supported yet\n");
3884 case IB_WR_LOCAL_INV:
3885 next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
3886 qp->sq.wr_data[idx] = IB_WR_LOCAL_INV;
3887 ctrl->imm = cpu_to_be32(wr->ex.invalidate_rkey);
3888 set_linv_wr(qp, &seg, &size);
3893 next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
3894 qp->sq.wr_data[idx] = IB_WR_REG_MR;
3895 ctrl->imm = cpu_to_be32(reg_wr(wr)->key);
3896 err = set_reg_wr(qp, reg_wr(wr), &seg, &size);
3904 case IB_WR_REG_SIG_MR:
3905 qp->sq.wr_data[idx] = IB_WR_REG_SIG_MR;
3906 mr = to_mmr(sig_handover_wr(wr)->sig_mr);
3908 ctrl->imm = cpu_to_be32(mr->ibmr.rkey);
3909 err = set_sig_umr_wr(wr, qp, &seg, &size);
3911 mlx5_ib_warn(dev, "\n");
3916 finish_wqe(qp, ctrl, size, idx, wr->wr_id,
3917 nreq, get_fence(fence, wr),
3918 next_fence, MLX5_OPCODE_UMR);
3920 * SET_PSV WQEs are not signaled and solicited
3923 wr->send_flags &= ~IB_SEND_SIGNALED;
3924 wr->send_flags |= IB_SEND_SOLICITED;
3925 err = begin_wqe(qp, &seg, &ctrl, wr,
3928 mlx5_ib_warn(dev, "\n");
3934 err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->mem,
3935 mr->sig->psv_memory.psv_idx, &seg,
3938 mlx5_ib_warn(dev, "\n");
3943 finish_wqe(qp, ctrl, size, idx, wr->wr_id,
3944 nreq, get_fence(fence, wr),
3945 next_fence, MLX5_OPCODE_SET_PSV);
3946 err = begin_wqe(qp, &seg, &ctrl, wr,
3949 mlx5_ib_warn(dev, "\n");
3955 next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
3956 err = set_psv_wr(&sig_handover_wr(wr)->sig_attrs->wire,
3957 mr->sig->psv_wire.psv_idx, &seg,
3960 mlx5_ib_warn(dev, "\n");
3965 finish_wqe(qp, ctrl, size, idx, wr->wr_id,
3966 nreq, get_fence(fence, wr),
3967 next_fence, MLX5_OPCODE_SET_PSV);
3977 switch (wr->opcode) {
3978 case IB_WR_RDMA_WRITE:
3979 case IB_WR_RDMA_WRITE_WITH_IMM:
3980 set_raddr_seg(seg, rdma_wr(wr)->remote_addr,
3982 seg += sizeof(struct mlx5_wqe_raddr_seg);
3983 size += sizeof(struct mlx5_wqe_raddr_seg) / 16;
3992 case MLX5_IB_QPT_HW_GSI:
3993 set_datagram_seg(seg, wr);
3994 seg += sizeof(struct mlx5_wqe_datagram_seg);
3995 size += sizeof(struct mlx5_wqe_datagram_seg) / 16;
3996 if (unlikely((seg == qend)))
3997 seg = mlx5_get_send_wqe(qp, 0);
4000 set_datagram_seg(seg, wr);
4001 seg += sizeof(struct mlx5_wqe_datagram_seg);
4002 size += sizeof(struct mlx5_wqe_datagram_seg) / 16;
4004 if (unlikely((seg == qend)))
4005 seg = mlx5_get_send_wqe(qp, 0);
4007 /* handle qp that supports ud offload */
4008 if (qp->flags & IB_QP_CREATE_IPOIB_UD_LSO) {
4009 struct mlx5_wqe_eth_pad *pad;
4012 memset(pad, 0, sizeof(struct mlx5_wqe_eth_pad));
4013 seg += sizeof(struct mlx5_wqe_eth_pad);
4014 size += sizeof(struct mlx5_wqe_eth_pad) / 16;
4016 seg = set_eth_seg(seg, wr, qend, qp, &size);
4018 if (unlikely((seg == qend)))
4019 seg = mlx5_get_send_wqe(qp, 0);
4022 case MLX5_IB_QPT_REG_UMR:
4023 if (wr->opcode != MLX5_IB_WR_UMR) {
4025 mlx5_ib_warn(dev, "bad opcode\n");
4028 qp->sq.wr_data[idx] = MLX5_IB_WR_UMR;
4029 ctrl->imm = cpu_to_be32(umr_wr(wr)->mkey);
4030 set_reg_umr_segment(seg, wr, !!(MLX5_CAP_GEN(mdev, atomic)));
4031 seg += sizeof(struct mlx5_wqe_umr_ctrl_seg);
4032 size += sizeof(struct mlx5_wqe_umr_ctrl_seg) / 16;
4033 if (unlikely((seg == qend)))
4034 seg = mlx5_get_send_wqe(qp, 0);
4035 set_reg_mkey_segment(seg, wr);
4036 seg += sizeof(struct mlx5_mkey_seg);
4037 size += sizeof(struct mlx5_mkey_seg) / 16;
4038 if (unlikely((seg == qend)))
4039 seg = mlx5_get_send_wqe(qp, 0);
4046 if (wr->send_flags & IB_SEND_INLINE && num_sge) {
4047 int uninitialized_var(sz);
4049 err = set_data_inl_seg(qp, wr, seg, &sz);
4050 if (unlikely(err)) {
4051 mlx5_ib_warn(dev, "\n");
4059 for (i = 0; i < num_sge; i++) {
4060 if (unlikely(dpseg == qend)) {
4061 seg = mlx5_get_send_wqe(qp, 0);
4064 if (likely(wr->sg_list[i].length)) {
4065 set_data_ptr_seg(dpseg, wr->sg_list + i);
4066 size += sizeof(struct mlx5_wqe_data_seg) / 16;
4072 finish_wqe(qp, ctrl, size, idx, wr->wr_id, nreq,
4073 get_fence(fence, wr), next_fence,
4074 mlx5_ib_opcode[wr->opcode]);
4077 dump_wqe(qp, idx, size);
4082 qp->sq.head += nreq;
4084 /* Make sure that descriptors are written before
4085 * updating doorbell record and ringing the doorbell
4089 qp->db.db[MLX5_SND_DBR] = cpu_to_be32(qp->sq.cur_post);
4091 /* Make sure doorbell record is visible to the HCA before
4092 * we hit doorbell */
4096 spin_lock(&bf->lock);
4098 __acquire(&bf->lock);
4101 if (0 && nreq == 1 && bf->uuarn && inl && size > 1 && size <= bf->buf_size / 16) {
4102 mlx5_bf_copy(bf->reg + bf->offset, (u64 *)ctrl, ALIGN(size * 16, 64), qp);
4105 mlx5_write64((__be32 *)ctrl, bf->regreg + bf->offset,
4106 MLX5_GET_DOORBELL_LOCK(&bf->lock32));
4107 /* Make sure doorbells don't leak out of SQ spinlock
4108 * and reach the HCA out of order.
4112 bf->offset ^= bf->buf_size;
4114 spin_unlock(&bf->lock);
4116 __release(&bf->lock);
4119 spin_unlock_irqrestore(&qp->sq.lock, flags);
4124 static void set_sig_seg(struct mlx5_rwqe_sig *sig, int size)
4126 sig->signature = calc_sig(sig, size);
4129 int mlx5_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
4130 struct ib_recv_wr **bad_wr)
4132 struct mlx5_ib_qp *qp = to_mqp(ibqp);
4133 struct mlx5_wqe_data_seg *scat;
4134 struct mlx5_rwqe_sig *sig;
4135 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
4136 struct mlx5_core_dev *mdev = dev->mdev;
4137 unsigned long flags;
4143 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
4144 return mlx5_ib_gsi_post_recv(ibqp, wr, bad_wr);
4146 spin_lock_irqsave(&qp->rq.lock, flags);
4148 if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
4155 ind = qp->rq.head & (qp->rq.wqe_cnt - 1);
4157 for (nreq = 0; wr; nreq++, wr = wr->next) {
4158 if (mlx5_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) {
4164 if (unlikely(wr->num_sge > qp->rq.max_gs)) {
4170 scat = get_recv_wqe(qp, ind);
4174 for (i = 0; i < wr->num_sge; i++)
4175 set_data_ptr_seg(scat + i, wr->sg_list + i);
4177 if (i < qp->rq.max_gs) {
4178 scat[i].byte_count = 0;
4179 scat[i].lkey = cpu_to_be32(MLX5_INVALID_LKEY);
4184 sig = (struct mlx5_rwqe_sig *)scat;
4185 set_sig_seg(sig, (qp->rq.max_gs + 1) << 2);
4188 qp->rq.wrid[ind] = wr->wr_id;
4190 ind = (ind + 1) & (qp->rq.wqe_cnt - 1);
4195 qp->rq.head += nreq;
4197 /* Make sure that descriptors are written before
4202 *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff);
4205 spin_unlock_irqrestore(&qp->rq.lock, flags);
4210 static inline enum ib_qp_state to_ib_qp_state(enum mlx5_qp_state mlx5_state)
4212 switch (mlx5_state) {
4213 case MLX5_QP_STATE_RST: return IB_QPS_RESET;
4214 case MLX5_QP_STATE_INIT: return IB_QPS_INIT;
4215 case MLX5_QP_STATE_RTR: return IB_QPS_RTR;
4216 case MLX5_QP_STATE_RTS: return IB_QPS_RTS;
4217 case MLX5_QP_STATE_SQ_DRAINING:
4218 case MLX5_QP_STATE_SQD: return IB_QPS_SQD;
4219 case MLX5_QP_STATE_SQER: return IB_QPS_SQE;
4220 case MLX5_QP_STATE_ERR: return IB_QPS_ERR;
4225 static inline enum ib_mig_state to_ib_mig_state(int mlx5_mig_state)
4227 switch (mlx5_mig_state) {
4228 case MLX5_QP_PM_ARMED: return IB_MIG_ARMED;
4229 case MLX5_QP_PM_REARM: return IB_MIG_REARM;
4230 case MLX5_QP_PM_MIGRATED: return IB_MIG_MIGRATED;
4235 static int to_ib_qp_access_flags(int mlx5_flags)
4239 if (mlx5_flags & MLX5_QP_BIT_RRE)
4240 ib_flags |= IB_ACCESS_REMOTE_READ;
4241 if (mlx5_flags & MLX5_QP_BIT_RWE)
4242 ib_flags |= IB_ACCESS_REMOTE_WRITE;
4243 if (mlx5_flags & MLX5_QP_BIT_RAE)
4244 ib_flags |= IB_ACCESS_REMOTE_ATOMIC;
4249 static void to_ib_ah_attr(struct mlx5_ib_dev *ibdev, struct ib_ah_attr *ib_ah_attr,
4250 struct mlx5_qp_path *path)
4252 struct mlx5_core_dev *dev = ibdev->mdev;
4254 memset(ib_ah_attr, 0, sizeof(*ib_ah_attr));
4255 ib_ah_attr->port_num = path->port;
4257 if (ib_ah_attr->port_num == 0 ||
4258 ib_ah_attr->port_num > MLX5_CAP_GEN(dev, num_ports))
4261 ib_ah_attr->sl = path->dci_cfi_prio_sl & 0xf;
4263 ib_ah_attr->dlid = be16_to_cpu(path->rlid);
4264 ib_ah_attr->src_path_bits = path->grh_mlid & 0x7f;
4265 ib_ah_attr->static_rate = path->static_rate ? path->static_rate - 5 : 0;
4266 ib_ah_attr->ah_flags = (path->grh_mlid & (1 << 7)) ? IB_AH_GRH : 0;
4267 if (ib_ah_attr->ah_flags) {
4268 ib_ah_attr->grh.sgid_index = path->mgid_index;
4269 ib_ah_attr->grh.hop_limit = path->hop_limit;
4270 ib_ah_attr->grh.traffic_class =
4271 (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff;
4272 ib_ah_attr->grh.flow_label =
4273 be32_to_cpu(path->tclass_flowlabel) & 0xfffff;
4274 memcpy(ib_ah_attr->grh.dgid.raw,
4275 path->rgid, sizeof(ib_ah_attr->grh.dgid.raw));
4279 static int query_raw_packet_qp_sq_state(struct mlx5_ib_dev *dev,
4280 struct mlx5_ib_sq *sq,
4288 inlen = MLX5_ST_SZ_BYTES(query_sq_out);
4289 out = mlx5_vzalloc(inlen);
4293 err = mlx5_core_query_sq(dev->mdev, sq->base.mqp.qpn, out);
4297 sqc = MLX5_ADDR_OF(query_sq_out, out, sq_context);
4298 *sq_state = MLX5_GET(sqc, sqc, state);
4299 sq->state = *sq_state;
4306 static int query_raw_packet_qp_rq_state(struct mlx5_ib_dev *dev,
4307 struct mlx5_ib_rq *rq,
4315 inlen = MLX5_ST_SZ_BYTES(query_rq_out);
4316 out = mlx5_vzalloc(inlen);
4320 err = mlx5_core_query_rq(dev->mdev, rq->base.mqp.qpn, out);
4324 rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context);
4325 *rq_state = MLX5_GET(rqc, rqc, state);
4326 rq->state = *rq_state;
4333 static int sqrq_state_to_qp_state(u8 sq_state, u8 rq_state,
4334 struct mlx5_ib_qp *qp, u8 *qp_state)
4336 static const u8 sqrq_trans[MLX5_RQ_NUM_STATE][MLX5_SQ_NUM_STATE] = {
4337 [MLX5_RQC_STATE_RST] = {
4338 [MLX5_SQC_STATE_RST] = IB_QPS_RESET,
4339 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD,
4340 [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE_BAD,
4341 [MLX5_SQ_STATE_NA] = IB_QPS_RESET,
4343 [MLX5_RQC_STATE_RDY] = {
4344 [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD,
4345 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE,
4346 [MLX5_SQC_STATE_ERR] = IB_QPS_SQE,
4347 [MLX5_SQ_STATE_NA] = MLX5_QP_STATE,
4349 [MLX5_RQC_STATE_ERR] = {
4350 [MLX5_SQC_STATE_RST] = MLX5_QP_STATE_BAD,
4351 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE_BAD,
4352 [MLX5_SQC_STATE_ERR] = IB_QPS_ERR,
4353 [MLX5_SQ_STATE_NA] = IB_QPS_ERR,
4355 [MLX5_RQ_STATE_NA] = {
4356 [MLX5_SQC_STATE_RST] = IB_QPS_RESET,
4357 [MLX5_SQC_STATE_RDY] = MLX5_QP_STATE,
4358 [MLX5_SQC_STATE_ERR] = MLX5_QP_STATE,
4359 [MLX5_SQ_STATE_NA] = MLX5_QP_STATE_BAD,
4363 *qp_state = sqrq_trans[rq_state][sq_state];
4365 if (*qp_state == MLX5_QP_STATE_BAD) {
4366 WARN(1, "Buggy Raw Packet QP state, SQ 0x%x state: 0x%x, RQ 0x%x state: 0x%x",
4367 qp->raw_packet_qp.sq.base.mqp.qpn, sq_state,
4368 qp->raw_packet_qp.rq.base.mqp.qpn, rq_state);
4372 if (*qp_state == MLX5_QP_STATE)
4373 *qp_state = qp->state;
4378 static int query_raw_packet_qp_state(struct mlx5_ib_dev *dev,
4379 struct mlx5_ib_qp *qp,
4380 u8 *raw_packet_qp_state)
4382 struct mlx5_ib_raw_packet_qp *raw_packet_qp = &qp->raw_packet_qp;
4383 struct mlx5_ib_sq *sq = &raw_packet_qp->sq;
4384 struct mlx5_ib_rq *rq = &raw_packet_qp->rq;
4386 u8 sq_state = MLX5_SQ_STATE_NA;
4387 u8 rq_state = MLX5_RQ_STATE_NA;
4389 if (qp->sq.wqe_cnt) {
4390 err = query_raw_packet_qp_sq_state(dev, sq, &sq_state);
4395 if (qp->rq.wqe_cnt) {
4396 err = query_raw_packet_qp_rq_state(dev, rq, &rq_state);
4401 return sqrq_state_to_qp_state(sq_state, rq_state, qp,
4402 raw_packet_qp_state);
4405 static int query_qp_attr(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
4406 struct ib_qp_attr *qp_attr)
4408 int outlen = MLX5_ST_SZ_BYTES(query_qp_out);
4409 struct mlx5_qp_context *context;
4414 outb = kzalloc(outlen, GFP_KERNEL);
4418 err = mlx5_core_qp_query(dev->mdev, &qp->trans_qp.base.mqp, outb,
4423 /* FIXME: use MLX5_GET rather than mlx5_qp_context manual struct */
4424 context = (struct mlx5_qp_context *)MLX5_ADDR_OF(query_qp_out, outb, qpc);
4426 mlx5_state = be32_to_cpu(context->flags) >> 28;
4428 qp->state = to_ib_qp_state(mlx5_state);
4429 qp_attr->path_mtu = context->mtu_msgmax >> 5;
4430 qp_attr->path_mig_state =
4431 to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3);
4432 qp_attr->qkey = be32_to_cpu(context->qkey);
4433 qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff;
4434 qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff;
4435 qp_attr->dest_qp_num = be32_to_cpu(context->log_pg_sz_remote_qpn) & 0xffffff;
4436 qp_attr->qp_access_flags =
4437 to_ib_qp_access_flags(be32_to_cpu(context->params2));
4439 if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) {
4440 to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path);
4441 to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path);
4442 qp_attr->alt_pkey_index =
4443 be16_to_cpu(context->alt_path.pkey_index);
4444 qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num;
4447 qp_attr->pkey_index = be16_to_cpu(context->pri_path.pkey_index);
4448 qp_attr->port_num = context->pri_path.port;
4450 /* qp_attr->en_sqd_async_notify is only applicable in modify qp */
4451 qp_attr->sq_draining = mlx5_state == MLX5_QP_STATE_SQ_DRAINING;
4453 qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7);
4455 qp_attr->max_dest_rd_atomic =
4456 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7);
4457 qp_attr->min_rnr_timer =
4458 (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f;
4459 qp_attr->timeout = context->pri_path.ackto_lt >> 3;
4460 qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7;
4461 qp_attr->rnr_retry = (be32_to_cpu(context->params1) >> 13) & 0x7;
4462 qp_attr->alt_timeout = context->alt_path.ackto_lt >> 3;
4469 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
4470 int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr)
4472 struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
4473 struct mlx5_ib_qp *qp = to_mqp(ibqp);
4475 u8 raw_packet_qp_state;
4477 if (ibqp->rwq_ind_tbl)
4480 if (unlikely(ibqp->qp_type == IB_QPT_GSI))
4481 return mlx5_ib_gsi_query_qp(ibqp, qp_attr, qp_attr_mask,
4484 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
4486 * Wait for any outstanding page faults, in case the user frees memory
4487 * based upon this query's result.
4489 flush_workqueue(mlx5_ib_page_fault_wq);
4492 mutex_lock(&qp->mutex);
4494 if (qp->ibqp.qp_type == IB_QPT_RAW_PACKET) {
4495 err = query_raw_packet_qp_state(dev, qp, &raw_packet_qp_state);
4498 qp->state = raw_packet_qp_state;
4499 qp_attr->port_num = 1;
4501 err = query_qp_attr(dev, qp, qp_attr);
4506 qp_attr->qp_state = qp->state;
4507 qp_attr->cur_qp_state = qp_attr->qp_state;
4508 qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt;
4509 qp_attr->cap.max_recv_sge = qp->rq.max_gs;
4511 if (!ibqp->uobject) {
4512 qp_attr->cap.max_send_wr = qp->sq.max_post;
4513 qp_attr->cap.max_send_sge = qp->sq.max_gs;
4514 qp_init_attr->qp_context = ibqp->qp_context;
4516 qp_attr->cap.max_send_wr = 0;
4517 qp_attr->cap.max_send_sge = 0;
4520 qp_init_attr->qp_type = ibqp->qp_type;
4521 qp_init_attr->recv_cq = ibqp->recv_cq;
4522 qp_init_attr->send_cq = ibqp->send_cq;
4523 qp_init_attr->srq = ibqp->srq;
4524 qp_attr->cap.max_inline_data = qp->max_inline_data;
4526 qp_init_attr->cap = qp_attr->cap;
4528 qp_init_attr->create_flags = 0;
4529 if (qp->flags & MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK)
4530 qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
4532 if (qp->flags & MLX5_IB_QP_CROSS_CHANNEL)
4533 qp_init_attr->create_flags |= IB_QP_CREATE_CROSS_CHANNEL;
4534 if (qp->flags & MLX5_IB_QP_MANAGED_SEND)
4535 qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_SEND;
4536 if (qp->flags & MLX5_IB_QP_MANAGED_RECV)
4537 qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_RECV;
4538 if (qp->flags & MLX5_IB_QP_SQPN_QP1)
4539 qp_init_attr->create_flags |= mlx5_ib_create_qp_sqpn_qp1();
4541 qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ?
4542 IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
4545 mutex_unlock(&qp->mutex);
4549 struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
4550 struct ib_ucontext *context,
4551 struct ib_udata *udata)
4553 struct mlx5_ib_dev *dev = to_mdev(ibdev);
4554 struct mlx5_ib_xrcd *xrcd;
4557 if (!MLX5_CAP_GEN(dev->mdev, xrc))
4558 return ERR_PTR(-ENOSYS);
4560 xrcd = kmalloc(sizeof(*xrcd), GFP_KERNEL);
4562 return ERR_PTR(-ENOMEM);
4564 err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn);
4567 return ERR_PTR(-ENOMEM);
4570 return &xrcd->ibxrcd;
4573 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
4575 struct mlx5_ib_dev *dev = to_mdev(xrcd->device);
4576 u32 xrcdn = to_mxrcd(xrcd)->xrcdn;
4579 err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn);
4581 mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn);
4590 static void mlx5_ib_wq_event(struct mlx5_core_qp *core_qp, int type)
4592 struct mlx5_ib_rwq *rwq = to_mibrwq(core_qp);
4593 struct mlx5_ib_dev *dev = to_mdev(rwq->ibwq.device);
4594 struct ib_event event;
4596 if (rwq->ibwq.event_handler) {
4597 event.device = rwq->ibwq.device;
4598 event.element.wq = &rwq->ibwq;
4600 case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
4601 event.event = IB_EVENT_WQ_FATAL;
4604 mlx5_ib_warn(dev, "Unexpected event type %d on WQ %06x\n", type, core_qp->qpn);
4608 rwq->ibwq.event_handler(&event, rwq->ibwq.wq_context);
4612 static int create_rq(struct mlx5_ib_rwq *rwq, struct ib_pd *pd,
4613 struct ib_wq_init_attr *init_attr)
4615 struct mlx5_ib_dev *dev;
4623 dev = to_mdev(pd->device);
4625 inlen = MLX5_ST_SZ_BYTES(create_rq_in) + sizeof(u64) * rwq->rq_num_pas;
4626 in = mlx5_vzalloc(inlen);
4630 rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
4631 MLX5_SET(rqc, rqc, mem_rq_type,
4632 MLX5_RQC_MEM_RQ_TYPE_MEMORY_RQ_INLINE);
4633 MLX5_SET(rqc, rqc, user_index, rwq->user_index);
4634 MLX5_SET(rqc, rqc, cqn, to_mcq(init_attr->cq)->mcq.cqn);
4635 MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
4636 MLX5_SET(rqc, rqc, flush_in_error_en, 1);
4637 wq = MLX5_ADDR_OF(rqc, rqc, wq);
4638 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
4639 MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
4640 MLX5_SET(wq, wq, log_wq_stride, rwq->log_rq_stride);
4641 MLX5_SET(wq, wq, log_wq_sz, rwq->log_rq_size);
4642 MLX5_SET(wq, wq, pd, to_mpd(pd)->pdn);
4643 MLX5_SET(wq, wq, page_offset, rwq->rq_page_offset);
4644 MLX5_SET(wq, wq, log_wq_pg_sz, rwq->log_page_size);
4645 MLX5_SET(wq, wq, wq_signature, rwq->wq_sig);
4646 MLX5_SET64(wq, wq, dbr_addr, rwq->db.dma);
4647 rq_pas0 = (__be64 *)MLX5_ADDR_OF(wq, wq, pas);
4648 mlx5_ib_populate_pas(dev, rwq->umem, rwq->page_shift, rq_pas0, 0);
4649 err = mlx5_core_create_rq_tracked(dev->mdev, in, inlen, &rwq->core_qp);
4654 static int set_user_rq_size(struct mlx5_ib_dev *dev,
4655 struct ib_wq_init_attr *wq_init_attr,
4656 struct mlx5_ib_create_wq *ucmd,
4657 struct mlx5_ib_rwq *rwq)
4659 /* Sanity check RQ size before proceeding */
4660 if (wq_init_attr->max_wr > (1 << MLX5_CAP_GEN(dev->mdev, log_max_wq_sz)))
4663 if (!ucmd->rq_wqe_count)
4666 rwq->wqe_count = ucmd->rq_wqe_count;
4667 rwq->wqe_shift = ucmd->rq_wqe_shift;
4668 rwq->buf_size = (rwq->wqe_count << rwq->wqe_shift);
4669 rwq->log_rq_stride = rwq->wqe_shift;
4670 rwq->log_rq_size = ilog2(rwq->wqe_count);
4674 static int prepare_user_rq(struct ib_pd *pd,
4675 struct ib_wq_init_attr *init_attr,
4676 struct ib_udata *udata,
4677 struct mlx5_ib_rwq *rwq)
4679 struct mlx5_ib_dev *dev = to_mdev(pd->device);
4680 struct mlx5_ib_create_wq ucmd = {};
4682 size_t required_cmd_sz;
4684 required_cmd_sz = offsetof(typeof(ucmd), reserved) + sizeof(ucmd.reserved);
4685 if (udata->inlen < required_cmd_sz) {
4686 mlx5_ib_dbg(dev, "invalid inlen\n");
4690 if (udata->inlen > sizeof(ucmd) &&
4691 !ib_is_udata_cleared(udata, sizeof(ucmd),
4692 udata->inlen - sizeof(ucmd))) {
4693 mlx5_ib_dbg(dev, "inlen is not supported\n");
4697 if (ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen))) {
4698 mlx5_ib_dbg(dev, "copy failed\n");
4702 if (ucmd.comp_mask) {
4703 mlx5_ib_dbg(dev, "invalid comp mask\n");
4707 if (ucmd.reserved) {
4708 mlx5_ib_dbg(dev, "invalid reserved\n");
4712 err = set_user_rq_size(dev, init_attr, &ucmd, rwq);
4714 mlx5_ib_dbg(dev, "err %d\n", err);
4718 err = create_user_rq(dev, pd, rwq, &ucmd);
4720 mlx5_ib_dbg(dev, "err %d\n", err);
4725 rwq->user_index = ucmd.user_index;
4729 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
4730 struct ib_wq_init_attr *init_attr,
4731 struct ib_udata *udata)
4733 struct mlx5_ib_dev *dev;
4734 struct mlx5_ib_rwq *rwq;
4735 struct mlx5_ib_create_wq_resp resp = {};
4736 size_t min_resp_len;
4740 return ERR_PTR(-ENOSYS);
4742 min_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved);
4743 if (udata->outlen && udata->outlen < min_resp_len)
4744 return ERR_PTR(-EINVAL);
4746 dev = to_mdev(pd->device);
4747 switch (init_attr->wq_type) {
4749 rwq = kzalloc(sizeof(*rwq), GFP_KERNEL);
4751 return ERR_PTR(-ENOMEM);
4752 err = prepare_user_rq(pd, init_attr, udata, rwq);
4755 err = create_rq(rwq, pd, init_attr);
4760 mlx5_ib_dbg(dev, "unsupported wq type %d\n",
4761 init_attr->wq_type);
4762 return ERR_PTR(-EINVAL);
4765 rwq->ibwq.wq_num = rwq->core_qp.qpn;
4766 rwq->ibwq.state = IB_WQS_RESET;
4767 if (udata->outlen) {
4768 resp.response_length = offsetof(typeof(resp), response_length) +
4769 sizeof(resp.response_length);
4770 err = ib_copy_to_udata(udata, &resp, resp.response_length);
4775 rwq->core_qp.event = mlx5_ib_wq_event;
4776 rwq->ibwq.event_handler = init_attr->event_handler;
4780 mlx5_core_destroy_rq_tracked(dev->mdev, &rwq->core_qp);
4782 destroy_user_rq(pd, rwq);
4785 return ERR_PTR(err);
4788 int mlx5_ib_destroy_wq(struct ib_wq *wq)
4790 struct mlx5_ib_dev *dev = to_mdev(wq->device);
4791 struct mlx5_ib_rwq *rwq = to_mrwq(wq);
4793 mlx5_core_destroy_rq_tracked(dev->mdev, &rwq->core_qp);
4794 destroy_user_rq(wq->pd, rwq);
4800 struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
4801 struct ib_rwq_ind_table_init_attr *init_attr,
4802 struct ib_udata *udata)
4804 struct mlx5_ib_dev *dev = to_mdev(device);
4805 struct mlx5_ib_rwq_ind_table *rwq_ind_tbl;
4806 int sz = 1 << init_attr->log_ind_tbl_size;
4807 struct mlx5_ib_create_rwq_ind_tbl_resp resp = {};
4808 size_t min_resp_len;
4815 if (udata->inlen > 0 &&
4816 !ib_is_udata_cleared(udata, 0,
4818 return ERR_PTR(-EOPNOTSUPP);
4820 min_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved);
4821 if (udata->outlen && udata->outlen < min_resp_len)
4822 return ERR_PTR(-EINVAL);
4824 rwq_ind_tbl = kzalloc(sizeof(*rwq_ind_tbl), GFP_KERNEL);
4826 return ERR_PTR(-ENOMEM);
4828 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
4829 in = mlx5_vzalloc(inlen);
4835 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
4837 MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
4838 MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
4840 for (i = 0; i < sz; i++)
4841 MLX5_SET(rqtc, rqtc, rq_num[i], init_attr->ind_tbl[i]->wq_num);
4843 err = mlx5_core_create_rqt(dev->mdev, in, inlen, &rwq_ind_tbl->rqtn);
4849 rwq_ind_tbl->ib_rwq_ind_tbl.ind_tbl_num = rwq_ind_tbl->rqtn;
4850 if (udata->outlen) {
4851 resp.response_length = offsetof(typeof(resp), response_length) +
4852 sizeof(resp.response_length);
4853 err = ib_copy_to_udata(udata, &resp, resp.response_length);
4858 return &rwq_ind_tbl->ib_rwq_ind_tbl;
4861 mlx5_core_destroy_rqt(dev->mdev, rwq_ind_tbl->rqtn);
4864 return ERR_PTR(err);
4867 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl)
4869 struct mlx5_ib_rwq_ind_table *rwq_ind_tbl = to_mrwq_ind_table(ib_rwq_ind_tbl);
4870 struct mlx5_ib_dev *dev = to_mdev(ib_rwq_ind_tbl->device);
4872 mlx5_core_destroy_rqt(dev->mdev, rwq_ind_tbl->rqtn);
4878 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
4879 u32 wq_attr_mask, struct ib_udata *udata)
4881 struct mlx5_ib_dev *dev = to_mdev(wq->device);
4882 struct mlx5_ib_rwq *rwq = to_mrwq(wq);
4883 struct mlx5_ib_modify_wq ucmd = {};
4884 size_t required_cmd_sz;
4892 required_cmd_sz = offsetof(typeof(ucmd), reserved) + sizeof(ucmd.reserved);
4893 if (udata->inlen < required_cmd_sz)
4896 if (udata->inlen > sizeof(ucmd) &&
4897 !ib_is_udata_cleared(udata, sizeof(ucmd),
4898 udata->inlen - sizeof(ucmd)))
4901 if (ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen)))
4904 if (ucmd.comp_mask || ucmd.reserved)
4907 inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
4908 in = mlx5_vzalloc(inlen);
4912 rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
4914 curr_wq_state = (wq_attr_mask & IB_WQ_CUR_STATE) ?
4915 wq_attr->curr_wq_state : wq->state;
4916 wq_state = (wq_attr_mask & IB_WQ_STATE) ?
4917 wq_attr->wq_state : curr_wq_state;
4918 if (curr_wq_state == IB_WQS_ERR)
4919 curr_wq_state = MLX5_RQC_STATE_ERR;
4920 if (wq_state == IB_WQS_ERR)
4921 wq_state = MLX5_RQC_STATE_ERR;
4922 MLX5_SET(modify_rq_in, in, rq_state, curr_wq_state);
4923 MLX5_SET(rqc, rqc, state, wq_state);
4925 err = mlx5_core_modify_rq(dev->mdev, rwq->core_qp.qpn, in, inlen);
4928 rwq->ibwq.state = (wq_state == MLX5_RQC_STATE_ERR) ? IB_WQS_ERR : wq_state;