1 /*******************************************************************************
3 * Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenFabrics.org BSD license below:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 *******************************************************************************/
35 #include <linux/module.h>
36 #include <linux/moduleparam.h>
37 #include <linux/random.h>
38 #include <linux/highmem.h>
39 #include <linux/time.h>
40 #include <linux/hugetlb.h>
41 #include <asm/byteorder.h>
43 #include <rdma/ib_verbs.h>
44 #include <rdma/iw_cm.h>
45 #include <rdma/ib_user_verbs.h>
46 #include <rdma/ib_umem.h>
50 * i40iw_query_device - get device attributes
51 * @ibdev: device pointer from stack
52 * @props: returning device attributes
55 static int i40iw_query_device(struct ib_device *ibdev,
56 struct ib_device_attr *props,
57 struct ib_udata *udata)
59 struct i40iw_device *iwdev = to_iwdev(ibdev);
61 if (udata->inlen || udata->outlen)
63 memset(props, 0, sizeof(*props));
64 ether_addr_copy((u8 *)&props->sys_image_guid, iwdev->netdev->dev_addr);
65 props->fw_ver = I40IW_FW_VERSION;
66 props->device_cap_flags = iwdev->device_cap_flags;
67 props->vendor_id = iwdev->ldev->pcidev->vendor;
68 props->vendor_part_id = iwdev->ldev->pcidev->device;
69 props->hw_ver = (u32)iwdev->sc_dev.hw_rev;
70 props->max_mr_size = I40IW_MAX_OUTBOUND_MESSAGE_SIZE;
71 props->max_qp = iwdev->max_qp - iwdev->used_qps;
72 props->max_qp_wr = (I40IW_MAX_WQ_ENTRIES >> 2) - 1;
73 props->max_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
74 props->max_cq = iwdev->max_cq - iwdev->used_cqs;
75 props->max_cqe = iwdev->max_cqe;
76 props->max_mr = iwdev->max_mr - iwdev->used_mrs;
77 props->max_pd = iwdev->max_pd - iwdev->used_pds;
78 props->max_sge_rd = I40IW_MAX_SGE_RD;
79 props->max_qp_rd_atom = I40IW_MAX_IRD_SIZE;
80 props->max_qp_init_rd_atom = props->max_qp_rd_atom;
81 props->atomic_cap = IB_ATOMIC_NONE;
82 props->max_map_per_fmr = 1;
83 props->max_fast_reg_page_list_len = I40IW_MAX_PAGES_PER_FMR;
88 * i40iw_query_port - get port attrubutes
89 * @ibdev: device pointer from stack
90 * @port: port number for query
91 * @props: returning device attributes
93 static int i40iw_query_port(struct ib_device *ibdev,
95 struct ib_port_attr *props)
97 struct i40iw_device *iwdev = to_iwdev(ibdev);
98 struct net_device *netdev = iwdev->netdev;
100 /* props being zeroed by the caller, avoid zeroing it here */
101 props->max_mtu = IB_MTU_4096;
102 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
105 if (netif_carrier_ok(iwdev->netdev))
106 props->state = IB_PORT_ACTIVE;
108 props->state = IB_PORT_DOWN;
109 props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP |
110 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
111 props->gid_tbl_len = 1;
112 props->pkey_tbl_len = 1;
113 props->active_width = IB_WIDTH_4X;
114 props->active_speed = 1;
115 props->max_msg_sz = I40IW_MAX_OUTBOUND_MESSAGE_SIZE;
120 * i40iw_alloc_ucontext - Allocate the user context data structure
121 * @ibdev: device pointer from stack
124 * This keeps track of all objects associated with a particular
127 static struct ib_ucontext *i40iw_alloc_ucontext(struct ib_device *ibdev,
128 struct ib_udata *udata)
130 struct i40iw_device *iwdev = to_iwdev(ibdev);
131 struct i40iw_alloc_ucontext_req req;
132 struct i40iw_alloc_ucontext_resp uresp;
133 struct i40iw_ucontext *ucontext;
135 if (ib_copy_from_udata(&req, udata, sizeof(req)))
136 return ERR_PTR(-EINVAL);
138 if (req.userspace_ver < 4 || req.userspace_ver > I40IW_ABI_VER) {
139 i40iw_pr_err("Unsupported provider library version %u.\n", req.userspace_ver);
140 return ERR_PTR(-EINVAL);
143 memset(&uresp, 0, sizeof(uresp));
144 uresp.max_qps = iwdev->max_qp;
145 uresp.max_pds = iwdev->max_pd;
146 uresp.wq_size = iwdev->max_qp_wr * 2;
147 uresp.kernel_ver = req.userspace_ver;
149 ucontext = kzalloc(sizeof(*ucontext), GFP_KERNEL);
151 return ERR_PTR(-ENOMEM);
153 ucontext->iwdev = iwdev;
154 ucontext->abi_ver = req.userspace_ver;
156 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
158 return ERR_PTR(-EFAULT);
161 INIT_LIST_HEAD(&ucontext->cq_reg_mem_list);
162 spin_lock_init(&ucontext->cq_reg_mem_list_lock);
163 INIT_LIST_HEAD(&ucontext->qp_reg_mem_list);
164 spin_lock_init(&ucontext->qp_reg_mem_list_lock);
166 return &ucontext->ibucontext;
170 * i40iw_dealloc_ucontext - deallocate the user context data structure
171 * @context: user context created during alloc
173 static int i40iw_dealloc_ucontext(struct ib_ucontext *context)
175 struct i40iw_ucontext *ucontext = to_ucontext(context);
178 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
179 if (!list_empty(&ucontext->cq_reg_mem_list)) {
180 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
183 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
184 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
185 if (!list_empty(&ucontext->qp_reg_mem_list)) {
186 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
189 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
196 * i40iw_mmap - user memory map
197 * @context: context created during alloc
198 * @vma: kernel info for user memory map
200 static int i40iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
202 struct i40iw_ucontext *ucontext = to_ucontext(context);
205 if (vma->vm_pgoff || vma->vm_end - vma->vm_start != PAGE_SIZE)
208 dbaddr = I40IW_DB_ADDR_OFFSET + pci_resource_start(ucontext->iwdev->ldev->pcidev, 0);
210 if (io_remap_pfn_range(vma, vma->vm_start, dbaddr >> PAGE_SHIFT, PAGE_SIZE,
211 pgprot_noncached(vma->vm_page_prot)))
218 * i40iw_alloc_push_page - allocate a push page for qp
219 * @iwdev: iwarp device
220 * @qp: hardware control qp
222 static void i40iw_alloc_push_page(struct i40iw_device *iwdev, struct i40iw_sc_qp *qp)
224 struct i40iw_cqp_request *cqp_request;
225 struct cqp_commands_info *cqp_info;
226 enum i40iw_status_code status;
228 if (qp->push_idx != I40IW_INVALID_PUSH_PAGE_INDEX)
231 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
235 atomic_inc(&cqp_request->refcount);
237 cqp_info = &cqp_request->info;
238 cqp_info->cqp_cmd = OP_MANAGE_PUSH_PAGE;
239 cqp_info->post_sq = 1;
241 cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
242 cqp_info->in.u.manage_push_page.info.free_page = 0;
243 cqp_info->in.u.manage_push_page.cqp = &iwdev->cqp.sc_cqp;
244 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
246 status = i40iw_handle_cqp_op(iwdev, cqp_request);
248 qp->push_idx = cqp_request->compl_info.op_ret_val;
250 i40iw_pr_err("CQP-OP Push page fail");
251 i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
255 * i40iw_dealloc_push_page - free a push page for qp
256 * @iwdev: iwarp device
257 * @qp: hardware control qp
259 static void i40iw_dealloc_push_page(struct i40iw_device *iwdev, struct i40iw_sc_qp *qp)
261 struct i40iw_cqp_request *cqp_request;
262 struct cqp_commands_info *cqp_info;
263 enum i40iw_status_code status;
265 if (qp->push_idx == I40IW_INVALID_PUSH_PAGE_INDEX)
268 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
272 cqp_info = &cqp_request->info;
273 cqp_info->cqp_cmd = OP_MANAGE_PUSH_PAGE;
274 cqp_info->post_sq = 1;
276 cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
277 cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
278 cqp_info->in.u.manage_push_page.info.free_page = 1;
279 cqp_info->in.u.manage_push_page.cqp = &iwdev->cqp.sc_cqp;
280 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
282 status = i40iw_handle_cqp_op(iwdev, cqp_request);
284 qp->push_idx = I40IW_INVALID_PUSH_PAGE_INDEX;
286 i40iw_pr_err("CQP-OP Push page fail");
290 * i40iw_alloc_pd - allocate protection domain
291 * @ibdev: device pointer from stack
292 * @context: user context created during alloc
295 static struct ib_pd *i40iw_alloc_pd(struct ib_device *ibdev,
296 struct ib_ucontext *context,
297 struct ib_udata *udata)
299 struct i40iw_pd *iwpd;
300 struct i40iw_device *iwdev = to_iwdev(ibdev);
301 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
302 struct i40iw_alloc_pd_resp uresp;
303 struct i40iw_sc_pd *sc_pd;
304 struct i40iw_ucontext *ucontext;
309 return ERR_PTR(-ENODEV);
311 err = i40iw_alloc_resource(iwdev, iwdev->allocated_pds,
312 iwdev->max_pd, &pd_id, &iwdev->next_pd);
314 i40iw_pr_err("alloc resource failed\n");
318 iwpd = kzalloc(sizeof(*iwpd), GFP_KERNEL);
324 sc_pd = &iwpd->sc_pd;
327 ucontext = to_ucontext(context);
328 dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, ucontext->abi_ver);
329 memset(&uresp, 0, sizeof(uresp));
331 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
336 dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, -1);
339 i40iw_add_pdusecount(iwpd);
344 i40iw_free_resource(iwdev, iwdev->allocated_pds, pd_id);
349 * i40iw_dealloc_pd - deallocate pd
350 * @ibpd: ptr of pd to be deallocated
352 static int i40iw_dealloc_pd(struct ib_pd *ibpd)
354 struct i40iw_pd *iwpd = to_iwpd(ibpd);
355 struct i40iw_device *iwdev = to_iwdev(ibpd->device);
357 i40iw_rem_pdusecount(iwpd, iwdev);
362 * i40iw_qp_roundup - return round up qp ring size
363 * @wr_ring_size: ring size to round up
365 static int i40iw_qp_roundup(u32 wr_ring_size)
369 if (wr_ring_size < I40IWQP_SW_MIN_WQSIZE)
370 wr_ring_size = I40IWQP_SW_MIN_WQSIZE;
372 for (wr_ring_size--; scount <= 16; scount *= 2)
373 wr_ring_size |= wr_ring_size >> scount;
374 return ++wr_ring_size;
378 * i40iw_get_pbl - Retrieve pbl from a list given a virtual
380 * @va: user virtual address
381 * @pbl_list: pbl list to search in (QP's or CQ's)
383 static struct i40iw_pbl *i40iw_get_pbl(unsigned long va,
384 struct list_head *pbl_list)
386 struct i40iw_pbl *iwpbl;
388 list_for_each_entry(iwpbl, pbl_list, list) {
389 if (iwpbl->user_base == va) {
390 list_del(&iwpbl->list);
398 * i40iw_free_qp_resources - free up memory resources for qp
399 * @iwdev: iwarp device
400 * @iwqp: qp ptr (user or kernel)
401 * @qp_num: qp number assigned
403 void i40iw_free_qp_resources(struct i40iw_device *iwdev,
404 struct i40iw_qp *iwqp,
407 struct i40iw_pbl *iwpbl = &iwqp->iwpbl;
409 i40iw_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp);
410 i40iw_dealloc_push_page(iwdev, &iwqp->sc_qp);
412 i40iw_free_resource(iwdev, iwdev->allocated_qps, qp_num);
413 if (iwpbl->pbl_allocated)
414 i40iw_free_pble(iwdev->pble_rsrc, &iwpbl->pble_alloc);
415 i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->q2_ctx_mem);
416 i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->kqp.dma_mem);
417 kfree(iwqp->kqp.wrid_mem);
418 iwqp->kqp.wrid_mem = NULL;
419 kfree(iwqp->allocated_buffer);
423 * i40iw_clean_cqes - clean cq entries for qp
424 * @iwqp: qp ptr (user or kernel)
427 static void i40iw_clean_cqes(struct i40iw_qp *iwqp, struct i40iw_cq *iwcq)
429 struct i40iw_cq_uk *ukcq = &iwcq->sc_cq.cq_uk;
431 ukcq->ops.iw_cq_clean(&iwqp->sc_qp.qp_uk, ukcq);
435 * i40iw_destroy_qp - destroy qp
436 * @ibqp: qp's ib pointer also to get to device's qp address
438 static int i40iw_destroy_qp(struct ib_qp *ibqp)
440 struct i40iw_qp *iwqp = to_iwqp(ibqp);
444 if (iwqp->ibqp_state >= IB_QPS_INIT && iwqp->ibqp_state < IB_QPS_RTS)
445 i40iw_next_iw_state(iwqp, I40IW_QP_STATE_ERROR, 0, 0, 0);
447 if (!iwqp->user_mode) {
449 i40iw_clean_cqes(iwqp, iwqp->iwscq);
450 if (iwqp->iwrcq != iwqp->iwscq)
451 i40iw_clean_cqes(iwqp, iwqp->iwrcq);
455 i40iw_rem_ref(&iwqp->ibqp);
460 * i40iw_setup_virt_qp - setup for allocation of virtual qp
463 * @init_info: initialize info to return
465 static int i40iw_setup_virt_qp(struct i40iw_device *iwdev,
466 struct i40iw_qp *iwqp,
467 struct i40iw_qp_init_info *init_info)
469 struct i40iw_pbl *iwpbl = &iwqp->iwpbl;
470 struct i40iw_qp_mr *qpmr = &iwpbl->qp_mr;
472 iwqp->page = qpmr->sq_page;
473 init_info->shadow_area_pa = cpu_to_le64(qpmr->shadow);
474 if (iwpbl->pbl_allocated) {
475 init_info->virtual_map = true;
476 init_info->sq_pa = qpmr->sq_pbl.idx;
477 init_info->rq_pa = qpmr->rq_pbl.idx;
479 init_info->sq_pa = qpmr->sq_pbl.addr;
480 init_info->rq_pa = qpmr->rq_pbl.addr;
486 * i40iw_setup_kmode_qp - setup initialization for kernel mode qp
487 * @iwdev: iwarp device
488 * @iwqp: qp ptr (user or kernel)
489 * @info: initialize info to return
491 static int i40iw_setup_kmode_qp(struct i40iw_device *iwdev,
492 struct i40iw_qp *iwqp,
493 struct i40iw_qp_init_info *info)
495 struct i40iw_dma_mem *mem = &iwqp->kqp.dma_mem;
496 u32 sqdepth, rqdepth;
497 u32 sq_size, rq_size;
500 enum i40iw_status_code status;
501 struct i40iw_qp_uk_init_info *ukinfo = &info->qp_uk_init_info;
503 sq_size = i40iw_qp_roundup(ukinfo->sq_size + 1);
504 rq_size = i40iw_qp_roundup(ukinfo->rq_size + 1);
506 status = i40iw_get_wqe_shift(sq_size, ukinfo->max_sq_frag_cnt, ukinfo->max_inline_data, &sqshift);
510 sqdepth = sq_size << sqshift;
511 rqdepth = rq_size << I40IW_MAX_RQ_WQE_SHIFT;
513 size = sqdepth * sizeof(struct i40iw_sq_uk_wr_trk_info) + (rqdepth << 3);
514 iwqp->kqp.wrid_mem = kzalloc(size, GFP_KERNEL);
516 ukinfo->sq_wrtrk_array = (struct i40iw_sq_uk_wr_trk_info *)iwqp->kqp.wrid_mem;
517 if (!ukinfo->sq_wrtrk_array)
520 ukinfo->rq_wrid_array = (u64 *)&ukinfo->sq_wrtrk_array[sqdepth];
522 size = (sqdepth + rqdepth) * I40IW_QP_WQE_MIN_SIZE;
523 size += (I40IW_SHADOW_AREA_SIZE << 3);
525 status = i40iw_allocate_dma_mem(iwdev->sc_dev.hw, mem, size, 256);
527 kfree(ukinfo->sq_wrtrk_array);
528 ukinfo->sq_wrtrk_array = NULL;
532 ukinfo->sq = mem->va;
533 info->sq_pa = mem->pa;
535 ukinfo->rq = &ukinfo->sq[sqdepth];
536 info->rq_pa = info->sq_pa + (sqdepth * I40IW_QP_WQE_MIN_SIZE);
538 ukinfo->shadow_area = ukinfo->rq[rqdepth].elem;
539 info->shadow_area_pa = info->rq_pa + (rqdepth * I40IW_QP_WQE_MIN_SIZE);
541 ukinfo->sq_size = sq_size;
542 ukinfo->rq_size = rq_size;
543 ukinfo->qp_id = iwqp->ibqp.qp_num;
548 * i40iw_create_qp - create qp
550 * @init_attr: attributes for qp
551 * @udata: user data for create qp
553 static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
554 struct ib_qp_init_attr *init_attr,
555 struct ib_udata *udata)
557 struct i40iw_pd *iwpd = to_iwpd(ibpd);
558 struct i40iw_device *iwdev = to_iwdev(ibpd->device);
559 struct i40iw_cqp *iwcqp = &iwdev->cqp;
560 struct i40iw_qp *iwqp;
561 struct i40iw_ucontext *ucontext;
562 struct i40iw_create_qp_req req;
563 struct i40iw_create_qp_resp uresp;
566 enum i40iw_status_code ret;
570 struct i40iw_sc_qp *qp;
571 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
572 struct i40iw_qp_init_info init_info;
573 struct i40iw_create_qp_info *qp_info;
574 struct i40iw_cqp_request *cqp_request;
575 struct cqp_commands_info *cqp_info;
577 struct i40iw_qp_host_ctx_info *ctx_info;
578 struct i40iwarp_offload_info *iwarp_info;
582 return ERR_PTR(-ENODEV);
584 if (init_attr->create_flags)
585 return ERR_PTR(-EINVAL);
586 if (init_attr->cap.max_inline_data > I40IW_MAX_INLINE_DATA_SIZE)
587 init_attr->cap.max_inline_data = I40IW_MAX_INLINE_DATA_SIZE;
589 if (init_attr->cap.max_send_sge > I40IW_MAX_WQ_FRAGMENT_COUNT)
590 init_attr->cap.max_send_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
592 if (init_attr->cap.max_recv_sge > I40IW_MAX_WQ_FRAGMENT_COUNT)
593 init_attr->cap.max_recv_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
595 memset(&init_info, 0, sizeof(init_info));
597 sq_size = init_attr->cap.max_send_wr;
598 rq_size = init_attr->cap.max_recv_wr;
600 init_info.vsi = &iwdev->vsi;
601 init_info.qp_uk_init_info.sq_size = sq_size;
602 init_info.qp_uk_init_info.rq_size = rq_size;
603 init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge;
604 init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;
605 init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;
607 mem = kzalloc(sizeof(*iwqp), GFP_KERNEL);
609 return ERR_PTR(-ENOMEM);
611 iwqp = (struct i40iw_qp *)mem;
612 iwqp->allocated_buffer = mem;
614 qp->back_qp = (void *)iwqp;
615 qp->push_idx = I40IW_INVALID_PUSH_PAGE_INDEX;
617 iwqp->ctx_info.iwarp_info = &iwqp->iwarp_info;
619 if (i40iw_allocate_dma_mem(dev->hw,
621 I40IW_Q2_BUFFER_SIZE + I40IW_QP_CTX_SIZE,
623 i40iw_pr_err("dma_mem failed\n");
628 init_info.q2 = iwqp->q2_ctx_mem.va;
629 init_info.q2_pa = iwqp->q2_ctx_mem.pa;
631 init_info.host_ctx = (void *)init_info.q2 + I40IW_Q2_BUFFER_SIZE;
632 init_info.host_ctx_pa = init_info.q2_pa + I40IW_Q2_BUFFER_SIZE;
634 err_code = i40iw_alloc_resource(iwdev, iwdev->allocated_qps, iwdev->max_qp,
635 &qp_num, &iwdev->next_qp);
637 i40iw_pr_err("qp resource\n");
643 iwqp->ibqp.qp_num = qp_num;
645 iwqp->iwscq = to_iwcq(init_attr->send_cq);
646 iwqp->iwrcq = to_iwcq(init_attr->recv_cq);
648 iwqp->host_ctx.va = init_info.host_ctx;
649 iwqp->host_ctx.pa = init_info.host_ctx_pa;
650 iwqp->host_ctx.size = I40IW_QP_CTX_SIZE;
652 init_info.pd = &iwpd->sc_pd;
653 init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num;
654 iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp;
656 if (init_attr->qp_type != IB_QPT_RC) {
660 if (iwdev->push_mode)
661 i40iw_alloc_push_page(iwdev, qp);
663 err_code = ib_copy_from_udata(&req, udata, sizeof(req));
665 i40iw_pr_err("ib_copy_from_data\n");
668 iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx;
669 if (ibpd->uobject && ibpd->uobject->context) {
671 ucontext = to_ucontext(ibpd->uobject->context);
673 if (req.user_wqe_buffers) {
674 struct i40iw_pbl *iwpbl;
677 &ucontext->qp_reg_mem_list_lock, flags);
678 iwpbl = i40iw_get_pbl(
679 (unsigned long)req.user_wqe_buffers,
680 &ucontext->qp_reg_mem_list);
681 spin_unlock_irqrestore(
682 &ucontext->qp_reg_mem_list_lock, flags);
686 i40iw_pr_err("no pbl info\n");
689 memcpy(&iwqp->iwpbl, iwpbl, sizeof(iwqp->iwpbl));
692 err_code = i40iw_setup_virt_qp(iwdev, iwqp, &init_info);
694 err_code = i40iw_setup_kmode_qp(iwdev, iwqp, &init_info);
698 i40iw_pr_err("setup qp failed\n");
702 init_info.type = I40IW_QP_TYPE_IWARP;
703 ret = dev->iw_priv_qp_ops->qp_init(qp, &init_info);
706 i40iw_pr_err("qp_init fail\n");
709 ctx_info = &iwqp->ctx_info;
710 iwarp_info = &iwqp->iwarp_info;
711 iwarp_info->rd_enable = true;
712 iwarp_info->wr_rdresp_en = true;
713 if (!iwqp->user_mode) {
714 iwarp_info->fast_reg_en = true;
715 iwarp_info->priv_mode_en = true;
717 iwarp_info->ddp_ver = 1;
718 iwarp_info->rdmap_ver = 1;
720 ctx_info->iwarp_info_valid = true;
721 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
722 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
723 if (qp->push_idx == I40IW_INVALID_PUSH_PAGE_INDEX) {
724 ctx_info->push_mode_en = false;
726 ctx_info->push_mode_en = true;
727 ctx_info->push_idx = qp->push_idx;
730 ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
731 (u64 *)iwqp->host_ctx.va,
733 ctx_info->iwarp_info_valid = false;
734 cqp_request = i40iw_get_cqp_request(iwcqp, true);
739 cqp_info = &cqp_request->info;
740 qp_info = &cqp_request->info.in.u.qp_create.info;
742 memset(qp_info, 0, sizeof(*qp_info));
744 qp_info->cq_num_valid = true;
745 qp_info->next_iwarp_state = I40IW_QP_STATE_IDLE;
747 cqp_info->cqp_cmd = OP_QP_CREATE;
748 cqp_info->post_sq = 1;
749 cqp_info->in.u.qp_create.qp = qp;
750 cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
751 ret = i40iw_handle_cqp_op(iwdev, cqp_request);
753 i40iw_pr_err("CQP-OP QP create fail");
758 i40iw_add_ref(&iwqp->ibqp);
759 spin_lock_init(&iwqp->lock);
760 iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0;
761 iwdev->qp_table[qp_num] = iwqp;
762 i40iw_add_pdusecount(iwqp->iwpd);
763 i40iw_add_devusecount(iwdev);
764 if (ibpd->uobject && udata) {
765 memset(&uresp, 0, sizeof(uresp));
766 uresp.actual_sq_size = sq_size;
767 uresp.actual_rq_size = rq_size;
768 uresp.qp_id = qp_num;
769 uresp.push_idx = qp->push_idx;
770 err_code = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
772 i40iw_pr_err("copy_to_udata failed\n");
773 i40iw_destroy_qp(&iwqp->ibqp);
774 /* let the completion of the qp destroy free the qp */
775 return ERR_PTR(err_code);
778 init_completion(&iwqp->sq_drained);
779 init_completion(&iwqp->rq_drained);
783 i40iw_free_qp_resources(iwdev, iwqp, qp_num);
784 return ERR_PTR(err_code);
788 * i40iw_query - query qp attributes
790 * @attr: attributes pointer
791 * @attr_mask: Not used
792 * @init_attr: qp attributes to return
794 static int i40iw_query_qp(struct ib_qp *ibqp,
795 struct ib_qp_attr *attr,
797 struct ib_qp_init_attr *init_attr)
799 struct i40iw_qp *iwqp = to_iwqp(ibqp);
800 struct i40iw_sc_qp *qp = &iwqp->sc_qp;
802 attr->qp_state = iwqp->ibqp_state;
803 attr->cur_qp_state = attr->qp_state;
804 attr->qp_access_flags = 0;
805 attr->cap.max_send_wr = qp->qp_uk.sq_size;
806 attr->cap.max_recv_wr = qp->qp_uk.rq_size;
807 attr->cap.max_inline_data = I40IW_MAX_INLINE_DATA_SIZE;
808 attr->cap.max_send_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
809 attr->cap.max_recv_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
811 init_attr->event_handler = iwqp->ibqp.event_handler;
812 init_attr->qp_context = iwqp->ibqp.qp_context;
813 init_attr->send_cq = iwqp->ibqp.send_cq;
814 init_attr->recv_cq = iwqp->ibqp.recv_cq;
815 init_attr->srq = iwqp->ibqp.srq;
816 init_attr->cap = attr->cap;
817 init_attr->port_num = 1;
822 * i40iw_hw_modify_qp - setup cqp for modify qp
823 * @iwdev: iwarp device
824 * @iwqp: qp ptr (user or kernel)
825 * @info: info for modify qp
826 * @wait: flag to wait or not for modify qp completion
828 void i40iw_hw_modify_qp(struct i40iw_device *iwdev, struct i40iw_qp *iwqp,
829 struct i40iw_modify_qp_info *info, bool wait)
831 enum i40iw_status_code status;
832 struct i40iw_cqp_request *cqp_request;
833 struct cqp_commands_info *cqp_info;
834 struct i40iw_modify_qp_info *m_info;
836 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
840 cqp_info = &cqp_request->info;
841 m_info = &cqp_info->in.u.qp_modify.info;
842 memcpy(m_info, info, sizeof(*m_info));
843 cqp_info->cqp_cmd = OP_QP_MODIFY;
844 cqp_info->post_sq = 1;
845 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
846 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
847 status = i40iw_handle_cqp_op(iwdev, cqp_request);
849 i40iw_pr_err("CQP-OP Modify QP fail");
853 * i40iw_modify_qp - modify qp request
854 * @ibqp: qp's pointer for modify
855 * @attr: access attributes
856 * @attr_mask: state mask
859 int i40iw_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
860 int attr_mask, struct ib_udata *udata)
862 struct i40iw_qp *iwqp = to_iwqp(ibqp);
863 struct i40iw_device *iwdev = iwqp->iwdev;
864 struct i40iw_qp_host_ctx_info *ctx_info;
865 struct i40iwarp_offload_info *iwarp_info;
866 struct i40iw_modify_qp_info info;
867 u8 issue_modify_qp = 0;
872 memset(&info, 0, sizeof(info));
873 ctx_info = &iwqp->ctx_info;
874 iwarp_info = &iwqp->iwarp_info;
876 spin_lock_irqsave(&iwqp->lock, flags);
878 if (attr_mask & IB_QP_STATE) {
879 if (iwdev->closing && attr->qp_state != IB_QPS_ERR) {
884 switch (attr->qp_state) {
887 if (iwqp->iwarp_state > (u32)I40IW_QP_STATE_IDLE) {
891 if (iwqp->iwarp_state == I40IW_QP_STATE_INVALID) {
892 info.next_iwarp_state = I40IW_QP_STATE_IDLE;
897 if ((iwqp->iwarp_state > (u32)I40IW_QP_STATE_RTS) ||
904 iwqp->hw_tcp_state = I40IW_TCP_STATE_ESTABLISHED;
906 info.next_iwarp_state = I40IW_QP_STATE_RTS;
907 info.tcp_ctx_valid = true;
908 info.ord_valid = true;
909 info.arp_cache_idx_valid = true;
910 info.cq_num_valid = true;
913 if (iwqp->hw_iwarp_state > (u32)I40IW_QP_STATE_RTS) {
917 if ((iwqp->iwarp_state == (u32)I40IW_QP_STATE_CLOSING) ||
918 (iwqp->iwarp_state < (u32)I40IW_QP_STATE_RTS)) {
922 if (iwqp->iwarp_state > (u32)I40IW_QP_STATE_CLOSING) {
926 info.next_iwarp_state = I40IW_QP_STATE_CLOSING;
930 if (iwqp->iwarp_state >= (u32)I40IW_QP_STATE_TERMINATE) {
934 info.next_iwarp_state = I40IW_QP_STATE_TERMINATE;
939 if (iwqp->iwarp_state == (u32)I40IW_QP_STATE_ERROR) {
943 if (iwqp->sc_qp.term_flags)
944 i40iw_terminate_del_timer(&iwqp->sc_qp);
945 info.next_iwarp_state = I40IW_QP_STATE_ERROR;
946 if ((iwqp->hw_tcp_state > I40IW_TCP_STATE_CLOSED) &&
948 (iwqp->hw_tcp_state != I40IW_TCP_STATE_TIME_WAIT))
949 info.reset_tcp_conn = true;
953 info.next_iwarp_state = I40IW_QP_STATE_ERROR;
960 iwqp->ibqp_state = attr->qp_state;
963 iwqp->iwarp_state = info.next_iwarp_state;
965 info.next_iwarp_state = iwqp->iwarp_state;
967 if (attr_mask & IB_QP_ACCESS_FLAGS) {
968 ctx_info->iwarp_info_valid = true;
969 if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)
970 iwarp_info->wr_rdresp_en = true;
971 if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
972 iwarp_info->wr_rdresp_en = true;
973 if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
974 iwarp_info->rd_enable = true;
975 if (attr->qp_access_flags & IB_ACCESS_MW_BIND)
976 iwarp_info->bind_en = true;
978 if (iwqp->user_mode) {
979 iwarp_info->rd_enable = true;
980 iwarp_info->wr_rdresp_en = true;
981 iwarp_info->priv_mode_en = false;
985 if (ctx_info->iwarp_info_valid) {
986 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
989 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
990 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
991 ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
992 (u64 *)iwqp->host_ctx.va,
995 i40iw_pr_err("setting QP context\n");
1001 spin_unlock_irqrestore(&iwqp->lock, flags);
1003 if (issue_modify_qp)
1004 i40iw_hw_modify_qp(iwdev, iwqp, &info, true);
1006 if (issue_modify_qp && (iwqp->ibqp_state > IB_QPS_RTS)) {
1008 if (iwqp->cm_id && iwqp->hw_tcp_state) {
1009 spin_lock_irqsave(&iwqp->lock, flags);
1010 iwqp->hw_tcp_state = I40IW_TCP_STATE_CLOSED;
1011 iwqp->last_aeq = I40IW_AE_RESET_SENT;
1012 spin_unlock_irqrestore(&iwqp->lock, flags);
1013 i40iw_cm_disconn(iwqp);
1016 spin_lock_irqsave(&iwqp->lock, flags);
1018 if (atomic_inc_return(&iwqp->close_timer_started) == 1) {
1019 iwqp->cm_id->add_ref(iwqp->cm_id);
1020 i40iw_schedule_cm_timer(iwqp->cm_node,
1021 (struct i40iw_puda_buf *)iwqp,
1022 I40IW_TIMER_TYPE_CLOSE, 1, 0);
1025 spin_unlock_irqrestore(&iwqp->lock, flags);
1030 spin_unlock_irqrestore(&iwqp->lock, flags);
1035 * cq_free_resources - free up recources for cq
1036 * @iwdev: iwarp device
1039 static void cq_free_resources(struct i40iw_device *iwdev, struct i40iw_cq *iwcq)
1041 struct i40iw_sc_cq *cq = &iwcq->sc_cq;
1043 if (!iwcq->user_mode)
1044 i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwcq->kmem);
1045 i40iw_free_resource(iwdev, iwdev->allocated_cqs, cq->cq_uk.cq_id);
1049 * i40iw_cq_wq_destroy - send cq destroy cqp
1050 * @iwdev: iwarp device
1051 * @cq: hardware control cq
1053 void i40iw_cq_wq_destroy(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq)
1055 enum i40iw_status_code status;
1056 struct i40iw_cqp_request *cqp_request;
1057 struct cqp_commands_info *cqp_info;
1059 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1063 cqp_info = &cqp_request->info;
1065 cqp_info->cqp_cmd = OP_CQ_DESTROY;
1066 cqp_info->post_sq = 1;
1067 cqp_info->in.u.cq_destroy.cq = cq;
1068 cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
1069 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1071 i40iw_pr_err("CQP-OP Destroy QP fail");
1075 * i40iw_destroy_cq - destroy cq
1076 * @ib_cq: cq pointer
1078 static int i40iw_destroy_cq(struct ib_cq *ib_cq)
1080 struct i40iw_cq *iwcq;
1081 struct i40iw_device *iwdev;
1082 struct i40iw_sc_cq *cq;
1085 i40iw_pr_err("ib_cq == NULL\n");
1089 iwcq = to_iwcq(ib_cq);
1090 iwdev = to_iwdev(ib_cq->device);
1092 i40iw_cq_wq_destroy(iwdev, cq);
1093 cq_free_resources(iwdev, iwcq);
1095 i40iw_rem_devusecount(iwdev);
1100 * i40iw_create_cq - create cq
1101 * @ibdev: device pointer from stack
1102 * @attr: attributes for cq
1103 * @context: user context created during alloc
1106 static struct ib_cq *i40iw_create_cq(struct ib_device *ibdev,
1107 const struct ib_cq_init_attr *attr,
1108 struct ib_ucontext *context,
1109 struct ib_udata *udata)
1111 struct i40iw_device *iwdev = to_iwdev(ibdev);
1112 struct i40iw_cq *iwcq;
1113 struct i40iw_pbl *iwpbl;
1115 struct i40iw_sc_cq *cq;
1116 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
1117 struct i40iw_cq_init_info info;
1118 enum i40iw_status_code status;
1119 struct i40iw_cqp_request *cqp_request;
1120 struct cqp_commands_info *cqp_info;
1121 struct i40iw_cq_uk_init_info *ukinfo = &info.cq_uk_init_info;
1122 unsigned long flags;
1124 int entries = attr->cqe;
1127 return ERR_PTR(-ENODEV);
1129 if (entries > iwdev->max_cqe)
1130 return ERR_PTR(-EINVAL);
1132 iwcq = kzalloc(sizeof(*iwcq), GFP_KERNEL);
1134 return ERR_PTR(-ENOMEM);
1136 memset(&info, 0, sizeof(info));
1138 err_code = i40iw_alloc_resource(iwdev, iwdev->allocated_cqs,
1139 iwdev->max_cq, &cq_num,
1145 cq->back_cq = (void *)iwcq;
1146 spin_lock_init(&iwcq->lock);
1149 ukinfo->cq_size = max(entries, 4);
1150 ukinfo->cq_id = cq_num;
1151 iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;
1153 if (attr->comp_vector < iwdev->ceqs_count)
1154 info.ceq_id = attr->comp_vector;
1155 info.ceq_id_valid = true;
1157 info.type = I40IW_CQ_TYPE_IWARP;
1159 struct i40iw_ucontext *ucontext;
1160 struct i40iw_create_cq_req req;
1161 struct i40iw_cq_mr *cqmr;
1163 memset(&req, 0, sizeof(req));
1164 iwcq->user_mode = true;
1165 ucontext = to_ucontext(context);
1166 if (ib_copy_from_udata(&req, udata, sizeof(struct i40iw_create_cq_req))) {
1168 goto cq_free_resources;
1171 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
1172 iwpbl = i40iw_get_pbl((unsigned long)req.user_cq_buffer,
1173 &ucontext->cq_reg_mem_list);
1174 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
1177 goto cq_free_resources;
1180 iwcq->iwpbl = iwpbl;
1181 iwcq->cq_mem_size = 0;
1182 cqmr = &iwpbl->cq_mr;
1183 info.shadow_area_pa = cpu_to_le64(cqmr->shadow);
1184 if (iwpbl->pbl_allocated) {
1185 info.virtual_map = true;
1186 info.pbl_chunk_size = 1;
1187 info.first_pm_pbl_idx = cqmr->cq_pbl.idx;
1189 info.cq_base_pa = cqmr->cq_pbl.addr;
1192 /* Kmode allocations */
1196 rsize = info.cq_uk_init_info.cq_size * sizeof(struct i40iw_cqe);
1197 rsize = round_up(rsize, 256);
1198 shadow = I40IW_SHADOW_AREA_SIZE << 3;
1199 status = i40iw_allocate_dma_mem(dev->hw, &iwcq->kmem,
1200 rsize + shadow, 256);
1203 goto cq_free_resources;
1205 ukinfo->cq_base = iwcq->kmem.va;
1206 info.cq_base_pa = iwcq->kmem.pa;
1207 info.shadow_area_pa = info.cq_base_pa + rsize;
1208 ukinfo->shadow_area = iwcq->kmem.va + rsize;
1211 if (dev->iw_priv_cq_ops->cq_init(cq, &info)) {
1212 i40iw_pr_err("init cq fail\n");
1214 goto cq_free_resources;
1217 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1220 goto cq_free_resources;
1223 cqp_info = &cqp_request->info;
1224 cqp_info->cqp_cmd = OP_CQ_CREATE;
1225 cqp_info->post_sq = 1;
1226 cqp_info->in.u.cq_create.cq = cq;
1227 cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
1228 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1230 i40iw_pr_err("CQP-OP Create QP fail");
1232 goto cq_free_resources;
1236 struct i40iw_create_cq_resp resp;
1238 memset(&resp, 0, sizeof(resp));
1239 resp.cq_id = info.cq_uk_init_info.cq_id;
1240 resp.cq_size = info.cq_uk_init_info.cq_size;
1241 if (ib_copy_to_udata(udata, &resp, sizeof(resp))) {
1242 i40iw_pr_err("copy to user data\n");
1248 i40iw_add_devusecount(iwdev);
1249 return (struct ib_cq *)iwcq;
1252 i40iw_cq_wq_destroy(iwdev, cq);
1254 cq_free_resources(iwdev, iwcq);
1257 return ERR_PTR(err_code);
1261 * i40iw_get_user_access - get hw access from IB access
1262 * @acc: IB access to return hw access
1264 static inline u16 i40iw_get_user_access(int acc)
1268 access |= (acc & IB_ACCESS_LOCAL_WRITE) ? I40IW_ACCESS_FLAGS_LOCALWRITE : 0;
1269 access |= (acc & IB_ACCESS_REMOTE_WRITE) ? I40IW_ACCESS_FLAGS_REMOTEWRITE : 0;
1270 access |= (acc & IB_ACCESS_REMOTE_READ) ? I40IW_ACCESS_FLAGS_REMOTEREAD : 0;
1271 access |= (acc & IB_ACCESS_MW_BIND) ? I40IW_ACCESS_FLAGS_BIND_WINDOW : 0;
1276 * i40iw_free_stag - free stag resource
1277 * @iwdev: iwarp device
1278 * @stag: stag to free
1280 static void i40iw_free_stag(struct i40iw_device *iwdev, u32 stag)
1284 stag_idx = (stag & iwdev->mr_stagmask) >> I40IW_CQPSQ_STAG_IDX_SHIFT;
1285 i40iw_free_resource(iwdev, iwdev->allocated_mrs, stag_idx);
1286 i40iw_rem_devusecount(iwdev);
1290 * i40iw_create_stag - create random stag
1291 * @iwdev: iwarp device
1293 static u32 i40iw_create_stag(struct i40iw_device *iwdev)
1297 u32 next_stag_index;
1303 get_random_bytes(&random, sizeof(random));
1304 consumer_key = (u8)random;
1306 driver_key = random & ~iwdev->mr_stagmask;
1307 next_stag_index = (random & iwdev->mr_stagmask) >> 8;
1308 next_stag_index %= iwdev->max_mr;
1310 ret = i40iw_alloc_resource(iwdev,
1311 iwdev->allocated_mrs, iwdev->max_mr,
1312 &stag_index, &next_stag_index);
1314 stag = stag_index << I40IW_CQPSQ_STAG_IDX_SHIFT;
1316 stag += (u32)consumer_key;
1317 i40iw_add_devusecount(iwdev);
1323 * i40iw_next_pbl_addr - Get next pbl address
1324 * @pbl: pointer to a pble
1325 * @pinfo: info pointer
1328 static inline u64 *i40iw_next_pbl_addr(u64 *pbl,
1329 struct i40iw_pble_info **pinfo,
1333 if ((!(*pinfo)) || (*idx != (*pinfo)->cnt))
1337 return (u64 *)(*pinfo)->addr;
1341 * i40iw_copy_user_pgaddrs - copy user page address to pble's os locally
1342 * @iwmr: iwmr for IB's user page addresses
1343 * @pbl: ple pointer to save 1 level or 0 level pble
1344 * @level: indicated level 0, 1 or 2
1346 static void i40iw_copy_user_pgaddrs(struct i40iw_mr *iwmr,
1348 enum i40iw_pble_level level)
1350 struct ib_umem *region = iwmr->region;
1351 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1352 int chunk_pages, entry, i;
1353 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1354 struct i40iw_pble_info *pinfo;
1355 struct scatterlist *sg;
1359 pinfo = (level == I40IW_LEVEL_1) ? NULL : palloc->level2.leaf;
1361 for_each_sg(region->sg_head.sgl, sg, region->nmap, entry) {
1362 chunk_pages = sg_dma_len(sg) >> region->page_shift;
1363 if ((iwmr->type == IW_MEMREG_TYPE_QP) &&
1364 !iwpbl->qp_mr.sq_page)
1365 iwpbl->qp_mr.sq_page = sg_page(sg);
1366 for (i = 0; i < chunk_pages; i++) {
1367 pg_addr = sg_dma_address(sg) +
1368 (i << region->page_shift);
1370 if ((entry + i) == 0)
1371 *pbl = cpu_to_le64(pg_addr & iwmr->page_msk);
1372 else if (!(pg_addr & ~iwmr->page_msk))
1373 *pbl = cpu_to_le64(pg_addr);
1376 pbl = i40iw_next_pbl_addr(pbl, &pinfo, &idx);
1382 * i40iw_set_hugetlb_params - set MR pg size and mask to huge pg values.
1383 * @addr: virtual address
1384 * @iwmr: mr pointer for this memory registration
1386 static void i40iw_set_hugetlb_values(u64 addr, struct i40iw_mr *iwmr)
1388 struct vm_area_struct *vma;
1391 down_read(¤t->mm->mmap_sem);
1392 vma = find_vma(current->mm, addr);
1393 if (vma && is_vm_hugetlb_page(vma)) {
1394 h = hstate_vma(vma);
1395 if (huge_page_size(h) == 0x200000) {
1396 iwmr->page_size = huge_page_size(h);
1397 iwmr->page_msk = huge_page_mask(h);
1400 up_read(¤t->mm->mmap_sem);
1404 * i40iw_check_mem_contiguous - check if pbls stored in arr are contiguous
1405 * @arr: lvl1 pbl array
1406 * @npages: page count
1407 * pg_size: page size
1410 static bool i40iw_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size)
1414 for (pg_idx = 0; pg_idx < npages; pg_idx++) {
1415 if ((*arr + (pg_size * pg_idx)) != arr[pg_idx])
1422 * i40iw_check_mr_contiguous - check if MR is physically contiguous
1423 * @palloc: pbl allocation struct
1424 * pg_size: page size
1426 static bool i40iw_check_mr_contiguous(struct i40iw_pble_alloc *palloc, u32 pg_size)
1428 struct i40iw_pble_level2 *lvl2 = &palloc->level2;
1429 struct i40iw_pble_info *leaf = lvl2->leaf;
1431 u64 *start_addr = NULL;
1435 if (palloc->level == I40IW_LEVEL_1) {
1436 arr = (u64 *)palloc->level1.addr;
1437 ret = i40iw_check_mem_contiguous(arr, palloc->total_cnt, pg_size);
1441 start_addr = (u64 *)leaf->addr;
1443 for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {
1444 arr = (u64 *)leaf->addr;
1445 if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr)
1447 ret = i40iw_check_mem_contiguous(arr, leaf->cnt, pg_size);
1456 * i40iw_setup_pbles - copy user pg address to pble's
1457 * @iwdev: iwarp device
1458 * @iwmr: mr pointer for this memory registration
1459 * @use_pbles: flag if to use pble's
1461 static int i40iw_setup_pbles(struct i40iw_device *iwdev,
1462 struct i40iw_mr *iwmr,
1465 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1466 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1467 struct i40iw_pble_info *pinfo;
1469 enum i40iw_status_code status;
1470 enum i40iw_pble_level level = I40IW_LEVEL_1;
1473 mutex_lock(&iwdev->pbl_mutex);
1474 status = i40iw_get_pble(&iwdev->sc_dev, iwdev->pble_rsrc, palloc, iwmr->page_cnt);
1475 mutex_unlock(&iwdev->pbl_mutex);
1479 iwpbl->pbl_allocated = true;
1480 level = palloc->level;
1481 pinfo = (level == I40IW_LEVEL_1) ? &palloc->level1 : palloc->level2.leaf;
1482 pbl = (u64 *)pinfo->addr;
1484 pbl = iwmr->pgaddrmem;
1487 i40iw_copy_user_pgaddrs(iwmr, pbl, level);
1490 iwmr->pgaddrmem[0] = *pbl;
1496 * i40iw_handle_q_mem - handle memory for qp and cq
1497 * @iwdev: iwarp device
1498 * @req: information for q memory management
1499 * @iwpbl: pble struct
1500 * @use_pbles: flag to use pble
1502 static int i40iw_handle_q_mem(struct i40iw_device *iwdev,
1503 struct i40iw_mem_reg_req *req,
1504 struct i40iw_pbl *iwpbl,
1507 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1508 struct i40iw_mr *iwmr = iwpbl->iwmr;
1509 struct i40iw_qp_mr *qpmr = &iwpbl->qp_mr;
1510 struct i40iw_cq_mr *cqmr = &iwpbl->cq_mr;
1511 struct i40iw_hmc_pble *hmc_p;
1512 u64 *arr = iwmr->pgaddrmem;
1518 total = req->sq_pages + req->rq_pages + req->cq_pages;
1519 pg_size = iwmr->page_size;
1521 err = i40iw_setup_pbles(iwdev, iwmr, use_pbles);
1525 if (use_pbles && (palloc->level != I40IW_LEVEL_1)) {
1526 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1527 iwpbl->pbl_allocated = false;
1532 arr = (u64 *)palloc->level1.addr;
1534 if (iwmr->type == IW_MEMREG_TYPE_QP) {
1535 hmc_p = &qpmr->sq_pbl;
1536 qpmr->shadow = (dma_addr_t)arr[total];
1539 ret = i40iw_check_mem_contiguous(arr, req->sq_pages, pg_size);
1541 ret = i40iw_check_mem_contiguous(&arr[req->sq_pages], req->rq_pages, pg_size);
1545 hmc_p->idx = palloc->level1.idx;
1546 hmc_p = &qpmr->rq_pbl;
1547 hmc_p->idx = palloc->level1.idx + req->sq_pages;
1549 hmc_p->addr = arr[0];
1550 hmc_p = &qpmr->rq_pbl;
1551 hmc_p->addr = arr[req->sq_pages];
1554 hmc_p = &cqmr->cq_pbl;
1555 cqmr->shadow = (dma_addr_t)arr[total];
1558 ret = i40iw_check_mem_contiguous(arr, req->cq_pages, pg_size);
1561 hmc_p->idx = palloc->level1.idx;
1563 hmc_p->addr = arr[0];
1566 if (use_pbles && ret) {
1567 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1568 iwpbl->pbl_allocated = false;
1575 * i40iw_hw_alloc_stag - cqp command to allocate stag
1576 * @iwdev: iwarp device
1577 * @iwmr: iwarp mr pointer
1579 static int i40iw_hw_alloc_stag(struct i40iw_device *iwdev, struct i40iw_mr *iwmr)
1581 struct i40iw_allocate_stag_info *info;
1582 struct i40iw_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
1583 enum i40iw_status_code status;
1585 struct i40iw_cqp_request *cqp_request;
1586 struct cqp_commands_info *cqp_info;
1588 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1592 cqp_info = &cqp_request->info;
1593 info = &cqp_info->in.u.alloc_stag.info;
1594 memset(info, 0, sizeof(*info));
1595 info->page_size = PAGE_SIZE;
1596 info->stag_idx = iwmr->stag >> I40IW_CQPSQ_STAG_IDX_SHIFT;
1597 info->pd_id = iwpd->sc_pd.pd_id;
1598 info->total_len = iwmr->length;
1599 info->remote_access = true;
1600 cqp_info->cqp_cmd = OP_ALLOC_STAG;
1601 cqp_info->post_sq = 1;
1602 cqp_info->in.u.alloc_stag.dev = &iwdev->sc_dev;
1603 cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request;
1605 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1608 i40iw_pr_err("CQP-OP MR Reg fail");
1614 * i40iw_alloc_mr - register stag for fast memory registration
1616 * @mr_type: memory for stag registrion
1617 * @max_num_sg: man number of pages
1619 static struct ib_mr *i40iw_alloc_mr(struct ib_pd *pd,
1620 enum ib_mr_type mr_type,
1623 struct i40iw_pd *iwpd = to_iwpd(pd);
1624 struct i40iw_device *iwdev = to_iwdev(pd->device);
1625 struct i40iw_pble_alloc *palloc;
1626 struct i40iw_pbl *iwpbl;
1627 struct i40iw_mr *iwmr;
1628 enum i40iw_status_code status;
1630 int err_code = -ENOMEM;
1632 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
1634 return ERR_PTR(-ENOMEM);
1636 stag = i40iw_create_stag(iwdev);
1638 err_code = -EOVERFLOW;
1641 stag &= ~I40IW_CQPSQ_STAG_KEY_MASK;
1643 iwmr->ibmr.rkey = stag;
1644 iwmr->ibmr.lkey = stag;
1646 iwmr->ibmr.device = pd->device;
1647 iwpbl = &iwmr->iwpbl;
1649 iwmr->type = IW_MEMREG_TYPE_MEM;
1650 palloc = &iwpbl->pble_alloc;
1651 iwmr->page_cnt = max_num_sg;
1652 mutex_lock(&iwdev->pbl_mutex);
1653 status = i40iw_get_pble(&iwdev->sc_dev, iwdev->pble_rsrc, palloc, iwmr->page_cnt);
1654 mutex_unlock(&iwdev->pbl_mutex);
1658 if (palloc->level != I40IW_LEVEL_1)
1660 err_code = i40iw_hw_alloc_stag(iwdev, iwmr);
1663 iwpbl->pbl_allocated = true;
1664 i40iw_add_pdusecount(iwpd);
1667 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1669 i40iw_free_stag(iwdev, stag);
1672 return ERR_PTR(err_code);
1676 * i40iw_set_page - populate pbl list for fmr
1677 * @ibmr: ib mem to access iwarp mr pointer
1678 * @addr: page dma address fro pbl list
1680 static int i40iw_set_page(struct ib_mr *ibmr, u64 addr)
1682 struct i40iw_mr *iwmr = to_iwmr(ibmr);
1683 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1684 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1687 if (unlikely(iwmr->npages == iwmr->page_cnt))
1690 pbl = (u64 *)palloc->level1.addr;
1691 pbl[iwmr->npages++] = cpu_to_le64(addr);
1696 * i40iw_map_mr_sg - map of sg list for fmr
1697 * @ibmr: ib mem to access iwarp mr pointer
1698 * @sg: scatter gather list for fmr
1699 * @sg_nents: number of sg pages
1701 static int i40iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
1702 int sg_nents, unsigned int *sg_offset)
1704 struct i40iw_mr *iwmr = to_iwmr(ibmr);
1707 return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, i40iw_set_page);
1711 * i40iw_drain_sq - drain the send queue
1712 * @ibqp: ib qp pointer
1714 static void i40iw_drain_sq(struct ib_qp *ibqp)
1716 struct i40iw_qp *iwqp = to_iwqp(ibqp);
1717 struct i40iw_sc_qp *qp = &iwqp->sc_qp;
1719 if (I40IW_RING_MORE_WORK(qp->qp_uk.sq_ring))
1720 wait_for_completion(&iwqp->sq_drained);
1724 * i40iw_drain_rq - drain the receive queue
1725 * @ibqp: ib qp pointer
1727 static void i40iw_drain_rq(struct ib_qp *ibqp)
1729 struct i40iw_qp *iwqp = to_iwqp(ibqp);
1730 struct i40iw_sc_qp *qp = &iwqp->sc_qp;
1732 if (I40IW_RING_MORE_WORK(qp->qp_uk.rq_ring))
1733 wait_for_completion(&iwqp->rq_drained);
1737 * i40iw_hwreg_mr - send cqp command for memory registration
1738 * @iwdev: iwarp device
1739 * @iwmr: iwarp mr pointer
1740 * @access: access for MR
1742 static int i40iw_hwreg_mr(struct i40iw_device *iwdev,
1743 struct i40iw_mr *iwmr,
1746 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1747 struct i40iw_reg_ns_stag_info *stag_info;
1748 struct i40iw_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
1749 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1750 enum i40iw_status_code status;
1752 struct i40iw_cqp_request *cqp_request;
1753 struct cqp_commands_info *cqp_info;
1755 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1759 cqp_info = &cqp_request->info;
1760 stag_info = &cqp_info->in.u.mr_reg_non_shared.info;
1761 memset(stag_info, 0, sizeof(*stag_info));
1762 stag_info->va = (void *)(unsigned long)iwpbl->user_base;
1763 stag_info->stag_idx = iwmr->stag >> I40IW_CQPSQ_STAG_IDX_SHIFT;
1764 stag_info->stag_key = (u8)iwmr->stag;
1765 stag_info->total_len = iwmr->length;
1766 stag_info->access_rights = access;
1767 stag_info->pd_id = iwpd->sc_pd.pd_id;
1768 stag_info->addr_type = I40IW_ADDR_TYPE_VA_BASED;
1769 stag_info->page_size = iwmr->page_size;
1771 if (iwpbl->pbl_allocated) {
1772 if (palloc->level == I40IW_LEVEL_1) {
1773 stag_info->first_pm_pbl_index = palloc->level1.idx;
1774 stag_info->chunk_size = 1;
1776 stag_info->first_pm_pbl_index = palloc->level2.root.idx;
1777 stag_info->chunk_size = 3;
1780 stag_info->reg_addr_pa = iwmr->pgaddrmem[0];
1783 cqp_info->cqp_cmd = OP_MR_REG_NON_SHARED;
1784 cqp_info->post_sq = 1;
1785 cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->sc_dev;
1786 cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request;
1788 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1791 i40iw_pr_err("CQP-OP MR Reg fail");
1797 * i40iw_reg_user_mr - Register a user memory region
1799 * @start: virtual start address
1800 * @length: length of mr
1801 * @virt: virtual address
1802 * @acc: access of mr
1805 static struct ib_mr *i40iw_reg_user_mr(struct ib_pd *pd,
1810 struct ib_udata *udata)
1812 struct i40iw_pd *iwpd = to_iwpd(pd);
1813 struct i40iw_device *iwdev = to_iwdev(pd->device);
1814 struct i40iw_ucontext *ucontext;
1815 struct i40iw_pble_alloc *palloc;
1816 struct i40iw_pbl *iwpbl;
1817 struct i40iw_mr *iwmr;
1818 struct ib_umem *region;
1819 struct i40iw_mem_reg_req req;
1824 bool use_pbles = false;
1825 unsigned long flags;
1831 return ERR_PTR(-ENODEV);
1833 if (length > I40IW_MAX_MR_SIZE)
1834 return ERR_PTR(-EINVAL);
1835 region = ib_umem_get(pd->uobject->context, start, length, acc, 0);
1837 return (struct ib_mr *)region;
1839 if (ib_copy_from_udata(&req, udata, sizeof(req))) {
1840 ib_umem_release(region);
1841 return ERR_PTR(-EFAULT);
1844 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
1846 ib_umem_release(region);
1847 return ERR_PTR(-ENOMEM);
1850 iwpbl = &iwmr->iwpbl;
1852 iwmr->region = region;
1854 iwmr->ibmr.device = pd->device;
1855 ucontext = to_ucontext(pd->uobject->context);
1857 iwmr->page_size = PAGE_SIZE;
1858 iwmr->page_msk = PAGE_MASK;
1860 if (region->hugetlb && (req.reg_type == IW_MEMREG_TYPE_MEM))
1861 i40iw_set_hugetlb_values(start, iwmr);
1863 region_length = region->length + (start & (iwmr->page_size - 1));
1864 pg_shift = ffs(iwmr->page_size) - 1;
1865 pbl_depth = region_length >> pg_shift;
1866 pbl_depth += (region_length & (iwmr->page_size - 1)) ? 1 : 0;
1867 iwmr->length = region->length;
1869 iwpbl->user_base = virt;
1870 palloc = &iwpbl->pble_alloc;
1872 iwmr->type = req.reg_type;
1873 iwmr->page_cnt = (u32)pbl_depth;
1875 switch (req.reg_type) {
1876 case IW_MEMREG_TYPE_QP:
1877 use_pbles = ((req.sq_pages + req.rq_pages) > 2);
1878 err = i40iw_handle_q_mem(iwdev, &req, iwpbl, use_pbles);
1881 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
1882 list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list);
1883 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
1885 case IW_MEMREG_TYPE_CQ:
1886 use_pbles = (req.cq_pages > 1);
1887 err = i40iw_handle_q_mem(iwdev, &req, iwpbl, use_pbles);
1891 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
1892 list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list);
1893 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
1895 case IW_MEMREG_TYPE_MEM:
1896 use_pbles = (iwmr->page_cnt != 1);
1897 access = I40IW_ACCESS_FLAGS_LOCALREAD;
1899 err = i40iw_setup_pbles(iwdev, iwmr, use_pbles);
1904 ret = i40iw_check_mr_contiguous(palloc, iwmr->page_size);
1906 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1907 iwpbl->pbl_allocated = false;
1911 access |= i40iw_get_user_access(acc);
1912 stag = i40iw_create_stag(iwdev);
1919 iwmr->ibmr.rkey = stag;
1920 iwmr->ibmr.lkey = stag;
1922 err = i40iw_hwreg_mr(iwdev, iwmr, access);
1924 i40iw_free_stag(iwdev, stag);
1933 iwmr->type = req.reg_type;
1934 if (req.reg_type == IW_MEMREG_TYPE_MEM)
1935 i40iw_add_pdusecount(iwpd);
1939 if (palloc->level != I40IW_LEVEL_0 && iwpbl->pbl_allocated)
1940 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1941 ib_umem_release(region);
1943 return ERR_PTR(err);
1947 * i40iw_reg_phys_mr - register kernel physical memory
1949 * @addr: physical address of memory to register
1950 * @size: size of memory to register
1951 * @acc: Access rights
1952 * @iova_start: start of virtual address for physical buffers
1954 struct ib_mr *i40iw_reg_phys_mr(struct ib_pd *pd,
1960 struct i40iw_pd *iwpd = to_iwpd(pd);
1961 struct i40iw_device *iwdev = to_iwdev(pd->device);
1962 struct i40iw_pbl *iwpbl;
1963 struct i40iw_mr *iwmr;
1964 enum i40iw_status_code status;
1966 u16 access = I40IW_ACCESS_FLAGS_LOCALREAD;
1969 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
1971 return ERR_PTR(-ENOMEM);
1973 iwmr->ibmr.device = pd->device;
1974 iwpbl = &iwmr->iwpbl;
1976 iwmr->type = IW_MEMREG_TYPE_MEM;
1977 iwpbl->user_base = *iova_start;
1978 stag = i40iw_create_stag(iwdev);
1983 access |= i40iw_get_user_access(acc);
1985 iwmr->ibmr.rkey = stag;
1986 iwmr->ibmr.lkey = stag;
1988 iwmr->pgaddrmem[0] = addr;
1989 iwmr->length = size;
1990 status = i40iw_hwreg_mr(iwdev, iwmr, access);
1992 i40iw_free_stag(iwdev, stag);
1997 i40iw_add_pdusecount(iwpd);
2001 return ERR_PTR(ret);
2005 * i40iw_get_dma_mr - register physical mem
2007 * @acc: access for memory
2009 static struct ib_mr *i40iw_get_dma_mr(struct ib_pd *pd, int acc)
2013 return i40iw_reg_phys_mr(pd, 0, 0, acc, &kva);
2017 * i40iw_del_mem_list - Deleting pbl list entries for CQ/QP
2018 * @iwmr: iwmr for IB's user page addresses
2019 * @ucontext: ptr to user context
2021 static void i40iw_del_memlist(struct i40iw_mr *iwmr,
2022 struct i40iw_ucontext *ucontext)
2024 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
2025 unsigned long flags;
2027 switch (iwmr->type) {
2028 case IW_MEMREG_TYPE_CQ:
2029 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
2030 if (!list_empty(&ucontext->cq_reg_mem_list))
2031 list_del(&iwpbl->list);
2032 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
2034 case IW_MEMREG_TYPE_QP:
2035 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
2036 if (!list_empty(&ucontext->qp_reg_mem_list))
2037 list_del(&iwpbl->list);
2038 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
2046 * i40iw_dereg_mr - deregister mr
2047 * @ib_mr: mr ptr for dereg
2049 static int i40iw_dereg_mr(struct ib_mr *ib_mr)
2051 struct ib_pd *ibpd = ib_mr->pd;
2052 struct i40iw_pd *iwpd = to_iwpd(ibpd);
2053 struct i40iw_mr *iwmr = to_iwmr(ib_mr);
2054 struct i40iw_device *iwdev = to_iwdev(ib_mr->device);
2055 enum i40iw_status_code status;
2056 struct i40iw_dealloc_stag_info *info;
2057 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
2058 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
2059 struct i40iw_cqp_request *cqp_request;
2060 struct cqp_commands_info *cqp_info;
2064 ib_umem_release(iwmr->region);
2066 if (iwmr->type != IW_MEMREG_TYPE_MEM) {
2067 if (ibpd->uobject) {
2068 struct i40iw_ucontext *ucontext;
2070 ucontext = to_ucontext(ibpd->uobject->context);
2071 i40iw_del_memlist(iwmr, ucontext);
2073 if (iwpbl->pbl_allocated && iwmr->type != IW_MEMREG_TYPE_QP)
2074 i40iw_free_pble(iwdev->pble_rsrc, palloc);
2079 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
2083 cqp_info = &cqp_request->info;
2084 info = &cqp_info->in.u.dealloc_stag.info;
2085 memset(info, 0, sizeof(*info));
2087 info->pd_id = cpu_to_le32(iwpd->sc_pd.pd_id & 0x00007fff);
2088 info->stag_idx = RS_64_1(ib_mr->rkey, I40IW_CQPSQ_STAG_IDX_SHIFT);
2089 stag_idx = info->stag_idx;
2091 if (iwpbl->pbl_allocated)
2092 info->dealloc_pbl = true;
2094 cqp_info->cqp_cmd = OP_DEALLOC_STAG;
2095 cqp_info->post_sq = 1;
2096 cqp_info->in.u.dealloc_stag.dev = &iwdev->sc_dev;
2097 cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;
2098 status = i40iw_handle_cqp_op(iwdev, cqp_request);
2100 i40iw_pr_err("CQP-OP dealloc failed for stag_idx = 0x%x\n", stag_idx);
2101 i40iw_rem_pdusecount(iwpd, iwdev);
2102 i40iw_free_stag(iwdev, iwmr->stag);
2103 if (iwpbl->pbl_allocated)
2104 i40iw_free_pble(iwdev->pble_rsrc, palloc);
2112 static ssize_t i40iw_show_rev(struct device *dev,
2113 struct device_attribute *attr, char *buf)
2115 struct i40iw_ib_device *iwibdev = container_of(dev,
2116 struct i40iw_ib_device,
2118 u32 hw_rev = iwibdev->iwdev->sc_dev.hw_rev;
2120 return sprintf(buf, "%x\n", hw_rev);
2126 static ssize_t i40iw_show_hca(struct device *dev,
2127 struct device_attribute *attr, char *buf)
2129 return sprintf(buf, "I40IW\n");
2135 static ssize_t i40iw_show_board(struct device *dev,
2136 struct device_attribute *attr,
2139 return sprintf(buf, "%.*s\n", 32, "I40IW Board ID");
2142 static DEVICE_ATTR(hw_rev, S_IRUGO, i40iw_show_rev, NULL);
2143 static DEVICE_ATTR(hca_type, S_IRUGO, i40iw_show_hca, NULL);
2144 static DEVICE_ATTR(board_id, S_IRUGO, i40iw_show_board, NULL);
2146 static struct device_attribute *i40iw_dev_attributes[] = {
2153 * i40iw_copy_sg_list - copy sg list for qp
2154 * @sg_list: copied into sg_list
2155 * @sgl: copy from sgl
2156 * @num_sges: count of sg entries
2158 static void i40iw_copy_sg_list(struct i40iw_sge *sg_list, struct ib_sge *sgl, int num_sges)
2162 for (i = 0; (i < num_sges) && (i < I40IW_MAX_WQ_FRAGMENT_COUNT); i++) {
2163 sg_list[i].tag_off = sgl[i].addr;
2164 sg_list[i].len = sgl[i].length;
2165 sg_list[i].stag = sgl[i].lkey;
2170 * i40iw_post_send - kernel application wr
2171 * @ibqp: qp ptr for wr
2172 * @ib_wr: work request ptr
2173 * @bad_wr: return of bad wr if err
2175 static int i40iw_post_send(struct ib_qp *ibqp,
2176 struct ib_send_wr *ib_wr,
2177 struct ib_send_wr **bad_wr)
2179 struct i40iw_qp *iwqp;
2180 struct i40iw_qp_uk *ukqp;
2181 struct i40iw_post_sq_info info;
2182 enum i40iw_status_code ret;
2184 unsigned long flags;
2187 iwqp = (struct i40iw_qp *)ibqp;
2188 ukqp = &iwqp->sc_qp.qp_uk;
2190 spin_lock_irqsave(&iwqp->lock, flags);
2193 memset(&info, 0, sizeof(info));
2194 info.wr_id = (u64)(ib_wr->wr_id);
2195 if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all)
2196 info.signaled = true;
2197 if (ib_wr->send_flags & IB_SEND_FENCE)
2198 info.read_fence = true;
2200 switch (ib_wr->opcode) {
2203 case IB_WR_SEND_WITH_INV:
2204 if (ib_wr->opcode == IB_WR_SEND) {
2205 if (ib_wr->send_flags & IB_SEND_SOLICITED)
2206 info.op_type = I40IW_OP_TYPE_SEND_SOL;
2208 info.op_type = I40IW_OP_TYPE_SEND;
2210 if (ib_wr->send_flags & IB_SEND_SOLICITED)
2211 info.op_type = I40IW_OP_TYPE_SEND_SOL_INV;
2213 info.op_type = I40IW_OP_TYPE_SEND_INV;
2216 if (ib_wr->send_flags & IB_SEND_INLINE) {
2217 info.op.inline_send.data = (void *)(unsigned long)ib_wr->sg_list[0].addr;
2218 info.op.inline_send.len = ib_wr->sg_list[0].length;
2219 ret = ukqp->ops.iw_inline_send(ukqp, &info, ib_wr->ex.invalidate_rkey, false);
2221 info.op.send.num_sges = ib_wr->num_sge;
2222 info.op.send.sg_list = (struct i40iw_sge *)ib_wr->sg_list;
2223 ret = ukqp->ops.iw_send(ukqp, &info, ib_wr->ex.invalidate_rkey, false);
2227 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2233 case IB_WR_RDMA_WRITE:
2234 info.op_type = I40IW_OP_TYPE_RDMA_WRITE;
2236 if (ib_wr->send_flags & IB_SEND_INLINE) {
2237 info.op.inline_rdma_write.data = (void *)(unsigned long)ib_wr->sg_list[0].addr;
2238 info.op.inline_rdma_write.len = ib_wr->sg_list[0].length;
2239 info.op.inline_rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
2240 info.op.inline_rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey;
2241 info.op.inline_rdma_write.rem_addr.len = ib_wr->sg_list->length;
2242 ret = ukqp->ops.iw_inline_rdma_write(ukqp, &info, false);
2244 info.op.rdma_write.lo_sg_list = (void *)ib_wr->sg_list;
2245 info.op.rdma_write.num_lo_sges = ib_wr->num_sge;
2246 info.op.rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
2247 info.op.rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey;
2248 info.op.rdma_write.rem_addr.len = ib_wr->sg_list->length;
2249 ret = ukqp->ops.iw_rdma_write(ukqp, &info, false);
2253 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2259 case IB_WR_RDMA_READ_WITH_INV:
2262 case IB_WR_RDMA_READ:
2263 if (ib_wr->num_sge > I40IW_MAX_SGE_RD) {
2267 info.op_type = I40IW_OP_TYPE_RDMA_READ;
2268 info.op.rdma_read.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
2269 info.op.rdma_read.rem_addr.stag = rdma_wr(ib_wr)->rkey;
2270 info.op.rdma_read.rem_addr.len = ib_wr->sg_list->length;
2271 info.op.rdma_read.lo_addr.tag_off = ib_wr->sg_list->addr;
2272 info.op.rdma_read.lo_addr.stag = ib_wr->sg_list->lkey;
2273 info.op.rdma_read.lo_addr.len = ib_wr->sg_list->length;
2274 ret = ukqp->ops.iw_rdma_read(ukqp, &info, inv_stag, false);
2276 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2282 case IB_WR_LOCAL_INV:
2283 info.op_type = I40IW_OP_TYPE_INV_STAG;
2284 info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey;
2285 ret = ukqp->ops.iw_stag_local_invalidate(ukqp, &info, true);
2291 struct i40iw_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr);
2292 int flags = reg_wr(ib_wr)->access;
2293 struct i40iw_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc;
2294 struct i40iw_sc_dev *dev = &iwqp->iwdev->sc_dev;
2295 struct i40iw_fast_reg_stag_info info;
2297 memset(&info, 0, sizeof(info));
2298 info.access_rights = I40IW_ACCESS_FLAGS_LOCALREAD;
2299 info.access_rights |= i40iw_get_user_access(flags);
2300 info.stag_key = reg_wr(ib_wr)->key & 0xff;
2301 info.stag_idx = reg_wr(ib_wr)->key >> 8;
2302 info.page_size = reg_wr(ib_wr)->mr->page_size;
2303 info.wr_id = ib_wr->wr_id;
2305 info.addr_type = I40IW_ADDR_TYPE_VA_BASED;
2306 info.va = (void *)(uintptr_t)iwmr->ibmr.iova;
2307 info.total_len = iwmr->ibmr.length;
2308 info.reg_addr_pa = *(u64 *)palloc->level1.addr;
2309 info.first_pm_pbl_index = palloc->level1.idx;
2310 info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;
2311 info.signaled = ib_wr->send_flags & IB_SEND_SIGNALED;
2313 if (iwmr->npages > I40IW_MIN_PAGES_PER_FMR)
2314 info.chunk_size = 1;
2316 ret = dev->iw_priv_qp_ops->iw_mr_fast_register(&iwqp->sc_qp, &info, true);
2323 i40iw_pr_err(" upost_send bad opcode = 0x%x\n",
2330 ib_wr = ib_wr->next;
2336 ukqp->ops.iw_qp_post_wr(ukqp);
2337 spin_unlock_irqrestore(&iwqp->lock, flags);
2343 * i40iw_post_recv - post receive wr for kernel application
2344 * @ibqp: ib qp pointer
2345 * @ib_wr: work request for receive
2346 * @bad_wr: bad wr caused an error
2348 static int i40iw_post_recv(struct ib_qp *ibqp,
2349 struct ib_recv_wr *ib_wr,
2350 struct ib_recv_wr **bad_wr)
2352 struct i40iw_qp *iwqp;
2353 struct i40iw_qp_uk *ukqp;
2354 struct i40iw_post_rq_info post_recv;
2355 struct i40iw_sge sg_list[I40IW_MAX_WQ_FRAGMENT_COUNT];
2356 enum i40iw_status_code ret = 0;
2357 unsigned long flags;
2360 iwqp = (struct i40iw_qp *)ibqp;
2361 ukqp = &iwqp->sc_qp.qp_uk;
2363 memset(&post_recv, 0, sizeof(post_recv));
2364 spin_lock_irqsave(&iwqp->lock, flags);
2366 post_recv.num_sges = ib_wr->num_sge;
2367 post_recv.wr_id = ib_wr->wr_id;
2368 i40iw_copy_sg_list(sg_list, ib_wr->sg_list, ib_wr->num_sge);
2369 post_recv.sg_list = sg_list;
2370 ret = ukqp->ops.iw_post_receive(ukqp, &post_recv);
2372 i40iw_pr_err(" post_recv err %d\n", ret);
2373 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2380 ib_wr = ib_wr->next;
2383 spin_unlock_irqrestore(&iwqp->lock, flags);
2388 * i40iw_poll_cq - poll cq for completion (kernel apps)
2390 * @num_entries: number of entries to poll
2391 * @entry: wr of entry completed
2393 static int i40iw_poll_cq(struct ib_cq *ibcq,
2395 struct ib_wc *entry)
2397 struct i40iw_cq *iwcq;
2399 struct i40iw_cq_poll_info cq_poll_info;
2400 enum i40iw_status_code ret;
2401 struct i40iw_cq_uk *ukcq;
2402 struct i40iw_sc_qp *qp;
2403 struct i40iw_qp *iwqp;
2404 unsigned long flags;
2406 iwcq = (struct i40iw_cq *)ibcq;
2407 ukcq = &iwcq->sc_cq.cq_uk;
2409 spin_lock_irqsave(&iwcq->lock, flags);
2410 while (cqe_count < num_entries) {
2411 ret = ukcq->ops.iw_cq_poll_completion(ukcq, &cq_poll_info);
2412 if (ret == I40IW_ERR_QUEUE_EMPTY) {
2414 } else if (ret == I40IW_ERR_QUEUE_DESTROYED) {
2421 entry->wc_flags = 0;
2422 entry->wr_id = cq_poll_info.wr_id;
2423 if (cq_poll_info.error) {
2424 entry->status = IB_WC_WR_FLUSH_ERR;
2425 entry->vendor_err = cq_poll_info.major_err << 16 | cq_poll_info.minor_err;
2427 entry->status = IB_WC_SUCCESS;
2430 switch (cq_poll_info.op_type) {
2431 case I40IW_OP_TYPE_RDMA_WRITE:
2432 entry->opcode = IB_WC_RDMA_WRITE;
2434 case I40IW_OP_TYPE_RDMA_READ_INV_STAG:
2435 case I40IW_OP_TYPE_RDMA_READ:
2436 entry->opcode = IB_WC_RDMA_READ;
2438 case I40IW_OP_TYPE_SEND_SOL:
2439 case I40IW_OP_TYPE_SEND_SOL_INV:
2440 case I40IW_OP_TYPE_SEND_INV:
2441 case I40IW_OP_TYPE_SEND:
2442 entry->opcode = IB_WC_SEND;
2444 case I40IW_OP_TYPE_REC:
2445 entry->opcode = IB_WC_RECV;
2448 entry->opcode = IB_WC_RECV;
2452 entry->ex.imm_data = 0;
2453 qp = (struct i40iw_sc_qp *)cq_poll_info.qp_handle;
2454 entry->qp = (struct ib_qp *)qp->back_qp;
2455 entry->src_qp = cq_poll_info.qp_id;
2456 iwqp = (struct i40iw_qp *)qp->back_qp;
2457 if (iwqp->iwarp_state > I40IW_QP_STATE_RTS) {
2458 if (!I40IW_RING_MORE_WORK(qp->qp_uk.sq_ring))
2459 complete(&iwqp->sq_drained);
2460 if (!I40IW_RING_MORE_WORK(qp->qp_uk.rq_ring))
2461 complete(&iwqp->rq_drained);
2463 entry->byte_len = cq_poll_info.bytes_xfered;
2467 spin_unlock_irqrestore(&iwcq->lock, flags);
2472 * i40iw_req_notify_cq - arm cq kernel application
2474 * @notify_flags: notofication flags
2476 static int i40iw_req_notify_cq(struct ib_cq *ibcq,
2477 enum ib_cq_notify_flags notify_flags)
2479 struct i40iw_cq *iwcq;
2480 struct i40iw_cq_uk *ukcq;
2481 unsigned long flags;
2482 enum i40iw_completion_notify cq_notify = IW_CQ_COMPL_EVENT;
2484 iwcq = (struct i40iw_cq *)ibcq;
2485 ukcq = &iwcq->sc_cq.cq_uk;
2486 if (notify_flags == IB_CQ_SOLICITED)
2487 cq_notify = IW_CQ_COMPL_SOLICITED;
2488 spin_lock_irqsave(&iwcq->lock, flags);
2489 ukcq->ops.iw_cq_request_notification(ukcq, cq_notify);
2490 spin_unlock_irqrestore(&iwcq->lock, flags);
2495 * i40iw_port_immutable - return port's immutable data
2496 * @ibdev: ib dev struct
2497 * @port_num: port number
2498 * @immutable: immutable data for the port return
2500 static int i40iw_port_immutable(struct ib_device *ibdev, u8 port_num,
2501 struct ib_port_immutable *immutable)
2503 struct ib_port_attr attr;
2506 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
2508 err = ib_query_port(ibdev, port_num, &attr);
2513 immutable->pkey_tbl_len = attr.pkey_tbl_len;
2514 immutable->gid_tbl_len = attr.gid_tbl_len;
2519 static const char * const i40iw_hw_stat_names[] = {
2521 [I40IW_HW_STAT_INDEX_IP4RXDISCARD] = "ip4InDiscards",
2522 [I40IW_HW_STAT_INDEX_IP4RXTRUNC] = "ip4InTruncatedPkts",
2523 [I40IW_HW_STAT_INDEX_IP4TXNOROUTE] = "ip4OutNoRoutes",
2524 [I40IW_HW_STAT_INDEX_IP6RXDISCARD] = "ip6InDiscards",
2525 [I40IW_HW_STAT_INDEX_IP6RXTRUNC] = "ip6InTruncatedPkts",
2526 [I40IW_HW_STAT_INDEX_IP6TXNOROUTE] = "ip6OutNoRoutes",
2527 [I40IW_HW_STAT_INDEX_TCPRTXSEG] = "tcpRetransSegs",
2528 [I40IW_HW_STAT_INDEX_TCPRXOPTERR] = "tcpInOptErrors",
2529 [I40IW_HW_STAT_INDEX_TCPRXPROTOERR] = "tcpInProtoErrors",
2531 [I40IW_HW_STAT_INDEX_IP4RXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2533 [I40IW_HW_STAT_INDEX_IP4RXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2535 [I40IW_HW_STAT_INDEX_IP4RXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2537 [I40IW_HW_STAT_INDEX_IP4RXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2539 [I40IW_HW_STAT_INDEX_IP4TXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2541 [I40IW_HW_STAT_INDEX_IP4TXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2543 [I40IW_HW_STAT_INDEX_IP4TXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2545 [I40IW_HW_STAT_INDEX_IP4TXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2547 [I40IW_HW_STAT_INDEX_IP6RXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2549 [I40IW_HW_STAT_INDEX_IP6RXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2551 [I40IW_HW_STAT_INDEX_IP6RXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2553 [I40IW_HW_STAT_INDEX_IP6RXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2555 [I40IW_HW_STAT_INDEX_IP6TXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2557 [I40IW_HW_STAT_INDEX_IP6TXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2559 [I40IW_HW_STAT_INDEX_IP6TXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2561 [I40IW_HW_STAT_INDEX_IP6TXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2563 [I40IW_HW_STAT_INDEX_TCPRXSEGS + I40IW_HW_STAT_INDEX_MAX_32] =
2565 [I40IW_HW_STAT_INDEX_TCPTXSEG + I40IW_HW_STAT_INDEX_MAX_32] =
2567 [I40IW_HW_STAT_INDEX_RDMARXRDS + I40IW_HW_STAT_INDEX_MAX_32] =
2569 [I40IW_HW_STAT_INDEX_RDMARXSNDS + I40IW_HW_STAT_INDEX_MAX_32] =
2571 [I40IW_HW_STAT_INDEX_RDMARXWRS + I40IW_HW_STAT_INDEX_MAX_32] =
2573 [I40IW_HW_STAT_INDEX_RDMATXRDS + I40IW_HW_STAT_INDEX_MAX_32] =
2575 [I40IW_HW_STAT_INDEX_RDMATXSNDS + I40IW_HW_STAT_INDEX_MAX_32] =
2577 [I40IW_HW_STAT_INDEX_RDMATXWRS + I40IW_HW_STAT_INDEX_MAX_32] =
2579 [I40IW_HW_STAT_INDEX_RDMAVBND + I40IW_HW_STAT_INDEX_MAX_32] =
2581 [I40IW_HW_STAT_INDEX_RDMAVINV + I40IW_HW_STAT_INDEX_MAX_32] =
2585 static void i40iw_get_dev_fw_str(struct ib_device *dev, char *str)
2587 u32 firmware_version = I40IW_FW_VERSION;
2589 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u", firmware_version,
2590 (firmware_version & 0x000000ff));
2594 * i40iw_alloc_hw_stats - Allocate a hw stats structure
2595 * @ibdev: device pointer from stack
2596 * @port_num: port number
2598 static struct rdma_hw_stats *i40iw_alloc_hw_stats(struct ib_device *ibdev,
2601 struct i40iw_device *iwdev = to_iwdev(ibdev);
2602 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
2603 int num_counters = I40IW_HW_STAT_INDEX_MAX_32 +
2604 I40IW_HW_STAT_INDEX_MAX_64;
2605 unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN;
2607 BUILD_BUG_ON(ARRAY_SIZE(i40iw_hw_stat_names) !=
2608 (I40IW_HW_STAT_INDEX_MAX_32 +
2609 I40IW_HW_STAT_INDEX_MAX_64));
2612 * PFs get the default update lifespan, but VFs only update once
2617 return rdma_alloc_hw_stats_struct(i40iw_hw_stat_names, num_counters,
2622 * i40iw_get_hw_stats - Populates the rdma_hw_stats structure
2623 * @ibdev: device pointer from stack
2624 * @stats: stats pointer from stack
2625 * @port_num: port number
2626 * @index: which hw counter the stack is requesting we update
2628 static int i40iw_get_hw_stats(struct ib_device *ibdev,
2629 struct rdma_hw_stats *stats,
2630 u8 port_num, int index)
2632 struct i40iw_device *iwdev = to_iwdev(ibdev);
2633 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
2634 struct i40iw_vsi_pestat *devstat = iwdev->vsi.pestat;
2635 struct i40iw_dev_hw_stats *hw_stats = &devstat->hw_stats;
2638 i40iw_hw_stats_read_all(devstat, &devstat->hw_stats);
2640 if (i40iw_vchnl_vf_get_pe_stats(dev, &devstat->hw_stats))
2644 memcpy(&stats->value[0], hw_stats, sizeof(*hw_stats));
2646 return stats->num_counters;
2650 * i40iw_query_gid - Query port GID
2651 * @ibdev: device pointer from stack
2652 * @port: port number
2653 * @index: Entry index
2656 static int i40iw_query_gid(struct ib_device *ibdev,
2661 struct i40iw_device *iwdev = to_iwdev(ibdev);
2663 memset(gid->raw, 0, sizeof(gid->raw));
2664 ether_addr_copy(gid->raw, iwdev->netdev->dev_addr);
2669 * i40iw_modify_port Modify port properties
2670 * @ibdev: device pointer from stack
2671 * @port: port number
2672 * @port_modify_mask: mask for port modifications
2673 * @props: port properties
2675 static int i40iw_modify_port(struct ib_device *ibdev,
2677 int port_modify_mask,
2678 struct ib_port_modify *props)
2684 * i40iw_query_pkey - Query partition key
2685 * @ibdev: device pointer from stack
2686 * @port: port number
2687 * @index: index of pkey
2688 * @pkey: pointer to store the pkey
2690 static int i40iw_query_pkey(struct ib_device *ibdev,
2700 * i40iw_create_ah - create address handle
2702 * @ah_attr: address handle attributes
2704 static struct ib_ah *i40iw_create_ah(struct ib_pd *ibpd,
2705 struct rdma_ah_attr *attr,
2706 struct ib_udata *udata)
2709 return ERR_PTR(-ENOSYS);
2713 * i40iw_destroy_ah - Destroy address handle
2714 * @ah: pointer to address handle
2716 static int i40iw_destroy_ah(struct ib_ah *ah)
2722 * i40iw_init_rdma_device - initialization of iwarp device
2723 * @iwdev: iwarp device
2725 static struct i40iw_ib_device *i40iw_init_rdma_device(struct i40iw_device *iwdev)
2727 struct i40iw_ib_device *iwibdev;
2728 struct net_device *netdev = iwdev->netdev;
2729 struct pci_dev *pcidev = (struct pci_dev *)iwdev->hw.dev_context;
2731 iwibdev = (struct i40iw_ib_device *)ib_alloc_device(sizeof(*iwibdev));
2733 i40iw_pr_err("iwdev == NULL\n");
2736 strlcpy(iwibdev->ibdev.name, "i40iw%d", IB_DEVICE_NAME_MAX);
2737 iwibdev->ibdev.owner = THIS_MODULE;
2738 iwdev->iwibdev = iwibdev;
2739 iwibdev->iwdev = iwdev;
2741 iwibdev->ibdev.node_type = RDMA_NODE_RNIC;
2742 ether_addr_copy((u8 *)&iwibdev->ibdev.node_guid, netdev->dev_addr);
2744 iwibdev->ibdev.uverbs_cmd_mask =
2745 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
2746 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
2747 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
2748 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
2749 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
2750 (1ull << IB_USER_VERBS_CMD_REG_MR) |
2751 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
2752 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
2753 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
2754 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
2755 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
2756 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
2757 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
2758 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
2759 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
2760 (1ull << IB_USER_VERBS_CMD_CREATE_AH) |
2761 (1ull << IB_USER_VERBS_CMD_DESTROY_AH) |
2762 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
2763 (1ull << IB_USER_VERBS_CMD_POST_RECV) |
2764 (1ull << IB_USER_VERBS_CMD_POST_SEND);
2765 iwibdev->ibdev.phys_port_cnt = 1;
2766 iwibdev->ibdev.num_comp_vectors = iwdev->ceqs_count;
2767 iwibdev->ibdev.dev.parent = &pcidev->dev;
2768 iwibdev->ibdev.query_port = i40iw_query_port;
2769 iwibdev->ibdev.modify_port = i40iw_modify_port;
2770 iwibdev->ibdev.query_pkey = i40iw_query_pkey;
2771 iwibdev->ibdev.query_gid = i40iw_query_gid;
2772 iwibdev->ibdev.alloc_ucontext = i40iw_alloc_ucontext;
2773 iwibdev->ibdev.dealloc_ucontext = i40iw_dealloc_ucontext;
2774 iwibdev->ibdev.mmap = i40iw_mmap;
2775 iwibdev->ibdev.alloc_pd = i40iw_alloc_pd;
2776 iwibdev->ibdev.dealloc_pd = i40iw_dealloc_pd;
2777 iwibdev->ibdev.create_qp = i40iw_create_qp;
2778 iwibdev->ibdev.modify_qp = i40iw_modify_qp;
2779 iwibdev->ibdev.query_qp = i40iw_query_qp;
2780 iwibdev->ibdev.destroy_qp = i40iw_destroy_qp;
2781 iwibdev->ibdev.create_cq = i40iw_create_cq;
2782 iwibdev->ibdev.destroy_cq = i40iw_destroy_cq;
2783 iwibdev->ibdev.get_dma_mr = i40iw_get_dma_mr;
2784 iwibdev->ibdev.reg_user_mr = i40iw_reg_user_mr;
2785 iwibdev->ibdev.dereg_mr = i40iw_dereg_mr;
2786 iwibdev->ibdev.alloc_hw_stats = i40iw_alloc_hw_stats;
2787 iwibdev->ibdev.get_hw_stats = i40iw_get_hw_stats;
2788 iwibdev->ibdev.query_device = i40iw_query_device;
2789 iwibdev->ibdev.create_ah = i40iw_create_ah;
2790 iwibdev->ibdev.destroy_ah = i40iw_destroy_ah;
2791 iwibdev->ibdev.drain_sq = i40iw_drain_sq;
2792 iwibdev->ibdev.drain_rq = i40iw_drain_rq;
2793 iwibdev->ibdev.alloc_mr = i40iw_alloc_mr;
2794 iwibdev->ibdev.map_mr_sg = i40iw_map_mr_sg;
2795 iwibdev->ibdev.iwcm = kzalloc(sizeof(*iwibdev->ibdev.iwcm), GFP_KERNEL);
2796 if (!iwibdev->ibdev.iwcm) {
2797 ib_dealloc_device(&iwibdev->ibdev);
2801 iwibdev->ibdev.iwcm->add_ref = i40iw_add_ref;
2802 iwibdev->ibdev.iwcm->rem_ref = i40iw_rem_ref;
2803 iwibdev->ibdev.iwcm->get_qp = i40iw_get_qp;
2804 iwibdev->ibdev.iwcm->connect = i40iw_connect;
2805 iwibdev->ibdev.iwcm->accept = i40iw_accept;
2806 iwibdev->ibdev.iwcm->reject = i40iw_reject;
2807 iwibdev->ibdev.iwcm->create_listen = i40iw_create_listen;
2808 iwibdev->ibdev.iwcm->destroy_listen = i40iw_destroy_listen;
2809 memcpy(iwibdev->ibdev.iwcm->ifname, netdev->name,
2810 sizeof(iwibdev->ibdev.iwcm->ifname));
2811 iwibdev->ibdev.get_port_immutable = i40iw_port_immutable;
2812 iwibdev->ibdev.get_dev_fw_str = i40iw_get_dev_fw_str;
2813 iwibdev->ibdev.poll_cq = i40iw_poll_cq;
2814 iwibdev->ibdev.req_notify_cq = i40iw_req_notify_cq;
2815 iwibdev->ibdev.post_send = i40iw_post_send;
2816 iwibdev->ibdev.post_recv = i40iw_post_recv;
2822 * i40iw_port_ibevent - indicate port event
2823 * @iwdev: iwarp device
2825 void i40iw_port_ibevent(struct i40iw_device *iwdev)
2827 struct i40iw_ib_device *iwibdev = iwdev->iwibdev;
2828 struct ib_event event;
2830 event.device = &iwibdev->ibdev;
2831 event.element.port_num = 1;
2832 event.event = iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
2833 ib_dispatch_event(&event);
2837 * i40iw_unregister_rdma_device - unregister of iwarp from IB
2838 * @iwibdev: rdma device ptr
2840 static void i40iw_unregister_rdma_device(struct i40iw_ib_device *iwibdev)
2844 for (i = 0; i < ARRAY_SIZE(i40iw_dev_attributes); ++i)
2845 device_remove_file(&iwibdev->ibdev.dev,
2846 i40iw_dev_attributes[i]);
2847 ib_unregister_device(&iwibdev->ibdev);
2851 * i40iw_destroy_rdma_device - destroy rdma device and free resources
2852 * @iwibdev: IB device ptr
2854 void i40iw_destroy_rdma_device(struct i40iw_ib_device *iwibdev)
2859 i40iw_unregister_rdma_device(iwibdev);
2860 kfree(iwibdev->ibdev.iwcm);
2861 iwibdev->ibdev.iwcm = NULL;
2862 wait_event_timeout(iwibdev->iwdev->close_wq,
2863 !atomic64_read(&iwibdev->iwdev->use_count),
2864 I40IW_EVENT_TIMEOUT);
2865 ib_dealloc_device(&iwibdev->ibdev);
2869 * i40iw_register_rdma_device - register iwarp device to IB
2870 * @iwdev: iwarp device
2872 int i40iw_register_rdma_device(struct i40iw_device *iwdev)
2875 struct i40iw_ib_device *iwibdev;
2877 iwdev->iwibdev = i40iw_init_rdma_device(iwdev);
2878 if (!iwdev->iwibdev)
2880 iwibdev = iwdev->iwibdev;
2882 ret = ib_register_device(&iwibdev->ibdev, NULL);
2886 for (i = 0; i < ARRAY_SIZE(i40iw_dev_attributes); ++i) {
2888 device_create_file(&iwibdev->ibdev.dev,
2889 i40iw_dev_attributes[i]);
2893 device_remove_file(&iwibdev->ibdev.dev, i40iw_dev_attributes[i]);
2895 ib_unregister_device(&iwibdev->ibdev);
2901 kfree(iwdev->iwibdev->ibdev.iwcm);
2902 iwdev->iwibdev->ibdev.iwcm = NULL;
2903 ib_dealloc_device(&iwdev->iwibdev->ibdev);