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;
206 ucontext = to_ucontext(context);
207 if (ucontext->iwdev->sc_dev.is_pf) {
208 db_addr_offset = I40IW_DB_ADDR_OFFSET;
209 push_offset = I40IW_PUSH_OFFSET;
211 vma->vm_pgoff += I40IW_PF_FIRST_PUSH_PAGE_INDEX - 1;
213 db_addr_offset = I40IW_VF_DB_ADDR_OFFSET;
214 push_offset = I40IW_VF_PUSH_OFFSET;
216 vma->vm_pgoff += I40IW_VF_FIRST_PUSH_PAGE_INDEX - 1;
219 vma->vm_pgoff += db_addr_offset >> PAGE_SHIFT;
221 if (vma->vm_pgoff == (db_addr_offset >> PAGE_SHIFT)) {
222 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
223 vma->vm_private_data = ucontext;
225 if ((vma->vm_pgoff - (push_offset >> PAGE_SHIFT)) % 2)
226 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
228 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
231 if (io_remap_pfn_range(vma, vma->vm_start,
232 vma->vm_pgoff + (pci_resource_start(ucontext->iwdev->ldev->pcidev, 0) >> PAGE_SHIFT),
233 PAGE_SIZE, vma->vm_page_prot))
240 * i40iw_alloc_push_page - allocate a push page for qp
241 * @iwdev: iwarp device
242 * @qp: hardware control qp
244 static void i40iw_alloc_push_page(struct i40iw_device *iwdev, struct i40iw_sc_qp *qp)
246 struct i40iw_cqp_request *cqp_request;
247 struct cqp_commands_info *cqp_info;
248 enum i40iw_status_code status;
250 if (qp->push_idx != I40IW_INVALID_PUSH_PAGE_INDEX)
253 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
257 atomic_inc(&cqp_request->refcount);
259 cqp_info = &cqp_request->info;
260 cqp_info->cqp_cmd = OP_MANAGE_PUSH_PAGE;
261 cqp_info->post_sq = 1;
263 cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
264 cqp_info->in.u.manage_push_page.info.free_page = 0;
265 cqp_info->in.u.manage_push_page.cqp = &iwdev->cqp.sc_cqp;
266 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
268 status = i40iw_handle_cqp_op(iwdev, cqp_request);
270 qp->push_idx = cqp_request->compl_info.op_ret_val;
272 i40iw_pr_err("CQP-OP Push page fail");
273 i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
277 * i40iw_dealloc_push_page - free a push page for qp
278 * @iwdev: iwarp device
279 * @qp: hardware control qp
281 static void i40iw_dealloc_push_page(struct i40iw_device *iwdev, struct i40iw_sc_qp *qp)
283 struct i40iw_cqp_request *cqp_request;
284 struct cqp_commands_info *cqp_info;
285 enum i40iw_status_code status;
287 if (qp->push_idx == I40IW_INVALID_PUSH_PAGE_INDEX)
290 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
294 cqp_info = &cqp_request->info;
295 cqp_info->cqp_cmd = OP_MANAGE_PUSH_PAGE;
296 cqp_info->post_sq = 1;
298 cqp_info->in.u.manage_push_page.info.push_idx = qp->push_idx;
299 cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle;
300 cqp_info->in.u.manage_push_page.info.free_page = 1;
301 cqp_info->in.u.manage_push_page.cqp = &iwdev->cqp.sc_cqp;
302 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
304 status = i40iw_handle_cqp_op(iwdev, cqp_request);
306 qp->push_idx = I40IW_INVALID_PUSH_PAGE_INDEX;
308 i40iw_pr_err("CQP-OP Push page fail");
312 * i40iw_alloc_pd - allocate protection domain
313 * @ibdev: device pointer from stack
314 * @context: user context created during alloc
317 static struct ib_pd *i40iw_alloc_pd(struct ib_device *ibdev,
318 struct ib_ucontext *context,
319 struct ib_udata *udata)
321 struct i40iw_pd *iwpd;
322 struct i40iw_device *iwdev = to_iwdev(ibdev);
323 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
324 struct i40iw_alloc_pd_resp uresp;
325 struct i40iw_sc_pd *sc_pd;
326 struct i40iw_ucontext *ucontext;
331 return ERR_PTR(-ENODEV);
333 err = i40iw_alloc_resource(iwdev, iwdev->allocated_pds,
334 iwdev->max_pd, &pd_id, &iwdev->next_pd);
336 i40iw_pr_err("alloc resource failed\n");
340 iwpd = kzalloc(sizeof(*iwpd), GFP_KERNEL);
346 sc_pd = &iwpd->sc_pd;
349 ucontext = to_ucontext(context);
350 dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, ucontext->abi_ver);
351 memset(&uresp, 0, sizeof(uresp));
353 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
358 dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, -1);
361 i40iw_add_pdusecount(iwpd);
366 i40iw_free_resource(iwdev, iwdev->allocated_pds, pd_id);
371 * i40iw_dealloc_pd - deallocate pd
372 * @ibpd: ptr of pd to be deallocated
374 static int i40iw_dealloc_pd(struct ib_pd *ibpd)
376 struct i40iw_pd *iwpd = to_iwpd(ibpd);
377 struct i40iw_device *iwdev = to_iwdev(ibpd->device);
379 i40iw_rem_pdusecount(iwpd, iwdev);
384 * i40iw_qp_roundup - return round up qp ring size
385 * @wr_ring_size: ring size to round up
387 static int i40iw_qp_roundup(u32 wr_ring_size)
391 if (wr_ring_size < I40IWQP_SW_MIN_WQSIZE)
392 wr_ring_size = I40IWQP_SW_MIN_WQSIZE;
394 for (wr_ring_size--; scount <= 16; scount *= 2)
395 wr_ring_size |= wr_ring_size >> scount;
396 return ++wr_ring_size;
400 * i40iw_get_pbl - Retrieve pbl from a list given a virtual
402 * @va: user virtual address
403 * @pbl_list: pbl list to search in (QP's or CQ's)
405 static struct i40iw_pbl *i40iw_get_pbl(unsigned long va,
406 struct list_head *pbl_list)
408 struct i40iw_pbl *iwpbl;
410 list_for_each_entry(iwpbl, pbl_list, list) {
411 if (iwpbl->user_base == va) {
412 list_del(&iwpbl->list);
420 * i40iw_free_qp_resources - free up memory resources for qp
421 * @iwdev: iwarp device
422 * @iwqp: qp ptr (user or kernel)
423 * @qp_num: qp number assigned
425 void i40iw_free_qp_resources(struct i40iw_device *iwdev,
426 struct i40iw_qp *iwqp,
429 i40iw_dealloc_push_page(iwdev, &iwqp->sc_qp);
431 i40iw_free_resource(iwdev, iwdev->allocated_qps, qp_num);
432 i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->q2_ctx_mem);
433 i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->kqp.dma_mem);
434 kfree(iwqp->kqp.wrid_mem);
435 iwqp->kqp.wrid_mem = NULL;
436 kfree(iwqp->allocated_buffer);
440 * i40iw_clean_cqes - clean cq entries for qp
441 * @iwqp: qp ptr (user or kernel)
444 static void i40iw_clean_cqes(struct i40iw_qp *iwqp, struct i40iw_cq *iwcq)
446 struct i40iw_cq_uk *ukcq = &iwcq->sc_cq.cq_uk;
448 ukcq->ops.iw_cq_clean(&iwqp->sc_qp.qp_uk, ukcq);
452 * i40iw_destroy_qp - destroy qp
453 * @ibqp: qp's ib pointer also to get to device's qp address
455 static int i40iw_destroy_qp(struct ib_qp *ibqp)
457 struct i40iw_qp *iwqp = to_iwqp(ibqp);
461 if (iwqp->ibqp_state >= IB_QPS_INIT && iwqp->ibqp_state < IB_QPS_RTS)
462 i40iw_next_iw_state(iwqp, I40IW_QP_STATE_ERROR, 0, 0, 0);
464 if (!iwqp->user_mode) {
466 i40iw_clean_cqes(iwqp, iwqp->iwscq);
467 if (iwqp->iwrcq != iwqp->iwscq)
468 i40iw_clean_cqes(iwqp, iwqp->iwrcq);
472 i40iw_rem_ref(&iwqp->ibqp);
477 * i40iw_setup_virt_qp - setup for allocation of virtual qp
480 * @init_info: initialize info to return
482 static int i40iw_setup_virt_qp(struct i40iw_device *iwdev,
483 struct i40iw_qp *iwqp,
484 struct i40iw_qp_init_info *init_info)
486 struct i40iw_pbl *iwpbl = iwqp->iwpbl;
487 struct i40iw_qp_mr *qpmr = &iwpbl->qp_mr;
489 iwqp->page = qpmr->sq_page;
490 init_info->shadow_area_pa = cpu_to_le64(qpmr->shadow);
491 if (iwpbl->pbl_allocated) {
492 init_info->virtual_map = true;
493 init_info->sq_pa = qpmr->sq_pbl.idx;
494 init_info->rq_pa = qpmr->rq_pbl.idx;
496 init_info->sq_pa = qpmr->sq_pbl.addr;
497 init_info->rq_pa = qpmr->rq_pbl.addr;
503 * i40iw_setup_kmode_qp - setup initialization for kernel mode qp
504 * @iwdev: iwarp device
505 * @iwqp: qp ptr (user or kernel)
506 * @info: initialize info to return
508 static int i40iw_setup_kmode_qp(struct i40iw_device *iwdev,
509 struct i40iw_qp *iwqp,
510 struct i40iw_qp_init_info *info)
512 struct i40iw_dma_mem *mem = &iwqp->kqp.dma_mem;
513 u32 sqdepth, rqdepth;
514 u32 sq_size, rq_size;
517 enum i40iw_status_code status;
518 struct i40iw_qp_uk_init_info *ukinfo = &info->qp_uk_init_info;
520 sq_size = i40iw_qp_roundup(ukinfo->sq_size + 1);
521 rq_size = i40iw_qp_roundup(ukinfo->rq_size + 1);
523 status = i40iw_get_wqe_shift(sq_size, ukinfo->max_sq_frag_cnt, ukinfo->max_inline_data, &sqshift);
527 sqdepth = sq_size << sqshift;
528 rqdepth = rq_size << I40IW_MAX_RQ_WQE_SHIFT;
530 size = sqdepth * sizeof(struct i40iw_sq_uk_wr_trk_info) + (rqdepth << 3);
531 iwqp->kqp.wrid_mem = kzalloc(size, GFP_KERNEL);
533 ukinfo->sq_wrtrk_array = (struct i40iw_sq_uk_wr_trk_info *)iwqp->kqp.wrid_mem;
534 if (!ukinfo->sq_wrtrk_array)
537 ukinfo->rq_wrid_array = (u64 *)&ukinfo->sq_wrtrk_array[sqdepth];
539 size = (sqdepth + rqdepth) * I40IW_QP_WQE_MIN_SIZE;
540 size += (I40IW_SHADOW_AREA_SIZE << 3);
542 status = i40iw_allocate_dma_mem(iwdev->sc_dev.hw, mem, size, 256);
544 kfree(ukinfo->sq_wrtrk_array);
545 ukinfo->sq_wrtrk_array = NULL;
549 ukinfo->sq = mem->va;
550 info->sq_pa = mem->pa;
552 ukinfo->rq = &ukinfo->sq[sqdepth];
553 info->rq_pa = info->sq_pa + (sqdepth * I40IW_QP_WQE_MIN_SIZE);
555 ukinfo->shadow_area = ukinfo->rq[rqdepth].elem;
556 info->shadow_area_pa = info->rq_pa + (rqdepth * I40IW_QP_WQE_MIN_SIZE);
558 ukinfo->sq_size = sq_size;
559 ukinfo->rq_size = rq_size;
560 ukinfo->qp_id = iwqp->ibqp.qp_num;
565 * i40iw_create_qp - create qp
567 * @init_attr: attributes for qp
568 * @udata: user data for create qp
570 static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
571 struct ib_qp_init_attr *init_attr,
572 struct ib_udata *udata)
574 struct i40iw_pd *iwpd = to_iwpd(ibpd);
575 struct i40iw_device *iwdev = to_iwdev(ibpd->device);
576 struct i40iw_cqp *iwcqp = &iwdev->cqp;
577 struct i40iw_qp *iwqp;
578 struct i40iw_ucontext *ucontext;
579 struct i40iw_create_qp_req req;
580 struct i40iw_create_qp_resp uresp;
583 enum i40iw_status_code ret;
587 struct i40iw_sc_qp *qp;
588 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
589 struct i40iw_qp_init_info init_info;
590 struct i40iw_create_qp_info *qp_info;
591 struct i40iw_cqp_request *cqp_request;
592 struct cqp_commands_info *cqp_info;
594 struct i40iw_qp_host_ctx_info *ctx_info;
595 struct i40iwarp_offload_info *iwarp_info;
599 return ERR_PTR(-ENODEV);
601 if (init_attr->create_flags)
602 return ERR_PTR(-EINVAL);
603 if (init_attr->cap.max_inline_data > I40IW_MAX_INLINE_DATA_SIZE)
604 init_attr->cap.max_inline_data = I40IW_MAX_INLINE_DATA_SIZE;
606 if (init_attr->cap.max_send_sge > I40IW_MAX_WQ_FRAGMENT_COUNT)
607 init_attr->cap.max_send_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
609 if (init_attr->cap.max_recv_sge > I40IW_MAX_WQ_FRAGMENT_COUNT)
610 init_attr->cap.max_recv_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
612 memset(&init_info, 0, sizeof(init_info));
614 sq_size = init_attr->cap.max_send_wr;
615 rq_size = init_attr->cap.max_recv_wr;
617 init_info.vsi = &iwdev->vsi;
618 init_info.qp_uk_init_info.sq_size = sq_size;
619 init_info.qp_uk_init_info.rq_size = rq_size;
620 init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge;
621 init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;
622 init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;
624 mem = kzalloc(sizeof(*iwqp), GFP_KERNEL);
626 return ERR_PTR(-ENOMEM);
628 iwqp = (struct i40iw_qp *)mem;
630 qp->back_qp = (void *)iwqp;
631 qp->push_idx = I40IW_INVALID_PUSH_PAGE_INDEX;
633 iwqp->ctx_info.iwarp_info = &iwqp->iwarp_info;
635 if (i40iw_allocate_dma_mem(dev->hw,
637 I40IW_Q2_BUFFER_SIZE + I40IW_QP_CTX_SIZE,
639 i40iw_pr_err("dma_mem failed\n");
644 init_info.q2 = iwqp->q2_ctx_mem.va;
645 init_info.q2_pa = iwqp->q2_ctx_mem.pa;
647 init_info.host_ctx = (void *)init_info.q2 + I40IW_Q2_BUFFER_SIZE;
648 init_info.host_ctx_pa = init_info.q2_pa + I40IW_Q2_BUFFER_SIZE;
650 err_code = i40iw_alloc_resource(iwdev, iwdev->allocated_qps, iwdev->max_qp,
651 &qp_num, &iwdev->next_qp);
653 i40iw_pr_err("qp resource\n");
657 iwqp->allocated_buffer = mem;
660 iwqp->ibqp.qp_num = qp_num;
662 iwqp->iwscq = to_iwcq(init_attr->send_cq);
663 iwqp->iwrcq = to_iwcq(init_attr->recv_cq);
665 iwqp->host_ctx.va = init_info.host_ctx;
666 iwqp->host_ctx.pa = init_info.host_ctx_pa;
667 iwqp->host_ctx.size = I40IW_QP_CTX_SIZE;
669 init_info.pd = &iwpd->sc_pd;
670 init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num;
671 iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp;
673 if (init_attr->qp_type != IB_QPT_RC) {
677 if (iwdev->push_mode)
678 i40iw_alloc_push_page(iwdev, qp);
680 err_code = ib_copy_from_udata(&req, udata, sizeof(req));
682 i40iw_pr_err("ib_copy_from_data\n");
685 iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx;
686 if (ibpd->uobject && ibpd->uobject->context) {
688 ucontext = to_ucontext(ibpd->uobject->context);
690 if (req.user_wqe_buffers) {
692 &ucontext->qp_reg_mem_list_lock, flags);
693 iwqp->iwpbl = i40iw_get_pbl(
694 (unsigned long)req.user_wqe_buffers,
695 &ucontext->qp_reg_mem_list);
696 spin_unlock_irqrestore(
697 &ucontext->qp_reg_mem_list_lock, flags);
701 i40iw_pr_err("no pbl info\n");
706 err_code = i40iw_setup_virt_qp(iwdev, iwqp, &init_info);
708 err_code = i40iw_setup_kmode_qp(iwdev, iwqp, &init_info);
712 i40iw_pr_err("setup qp failed\n");
716 init_info.type = I40IW_QP_TYPE_IWARP;
717 ret = dev->iw_priv_qp_ops->qp_init(qp, &init_info);
720 i40iw_pr_err("qp_init fail\n");
723 ctx_info = &iwqp->ctx_info;
724 iwarp_info = &iwqp->iwarp_info;
725 iwarp_info->rd_enable = true;
726 iwarp_info->wr_rdresp_en = true;
727 if (!iwqp->user_mode) {
728 iwarp_info->fast_reg_en = true;
729 iwarp_info->priv_mode_en = true;
731 iwarp_info->ddp_ver = 1;
732 iwarp_info->rdmap_ver = 1;
734 ctx_info->iwarp_info_valid = true;
735 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
736 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
737 if (qp->push_idx == I40IW_INVALID_PUSH_PAGE_INDEX) {
738 ctx_info->push_mode_en = false;
740 ctx_info->push_mode_en = true;
741 ctx_info->push_idx = qp->push_idx;
744 ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
745 (u64 *)iwqp->host_ctx.va,
747 ctx_info->iwarp_info_valid = false;
748 cqp_request = i40iw_get_cqp_request(iwcqp, true);
753 cqp_info = &cqp_request->info;
754 qp_info = &cqp_request->info.in.u.qp_create.info;
756 memset(qp_info, 0, sizeof(*qp_info));
758 qp_info->cq_num_valid = true;
759 qp_info->next_iwarp_state = I40IW_QP_STATE_IDLE;
761 cqp_info->cqp_cmd = OP_QP_CREATE;
762 cqp_info->post_sq = 1;
763 cqp_info->in.u.qp_create.qp = qp;
764 cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
765 ret = i40iw_handle_cqp_op(iwdev, cqp_request);
767 i40iw_pr_err("CQP-OP QP create fail");
772 i40iw_add_ref(&iwqp->ibqp);
773 spin_lock_init(&iwqp->lock);
774 iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0;
775 iwdev->qp_table[qp_num] = iwqp;
776 i40iw_add_pdusecount(iwqp->iwpd);
777 i40iw_add_devusecount(iwdev);
778 if (ibpd->uobject && udata) {
779 memset(&uresp, 0, sizeof(uresp));
780 uresp.actual_sq_size = sq_size;
781 uresp.actual_rq_size = rq_size;
782 uresp.qp_id = qp_num;
783 uresp.push_idx = qp->push_idx;
784 err_code = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
786 i40iw_pr_err("copy_to_udata failed\n");
787 i40iw_destroy_qp(&iwqp->ibqp);
788 /* let the completion of the qp destroy free the qp */
789 return ERR_PTR(err_code);
792 init_completion(&iwqp->sq_drained);
793 init_completion(&iwqp->rq_drained);
797 i40iw_free_qp_resources(iwdev, iwqp, qp_num);
798 return ERR_PTR(err_code);
802 * i40iw_query - query qp attributes
804 * @attr: attributes pointer
805 * @attr_mask: Not used
806 * @init_attr: qp attributes to return
808 static int i40iw_query_qp(struct ib_qp *ibqp,
809 struct ib_qp_attr *attr,
811 struct ib_qp_init_attr *init_attr)
813 struct i40iw_qp *iwqp = to_iwqp(ibqp);
814 struct i40iw_sc_qp *qp = &iwqp->sc_qp;
816 attr->qp_access_flags = 0;
817 attr->cap.max_send_wr = qp->qp_uk.sq_size;
818 attr->cap.max_recv_wr = qp->qp_uk.rq_size;
819 attr->cap.max_inline_data = I40IW_MAX_INLINE_DATA_SIZE;
820 attr->cap.max_send_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
821 attr->cap.max_recv_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
822 init_attr->event_handler = iwqp->ibqp.event_handler;
823 init_attr->qp_context = iwqp->ibqp.qp_context;
824 init_attr->send_cq = iwqp->ibqp.send_cq;
825 init_attr->recv_cq = iwqp->ibqp.recv_cq;
826 init_attr->srq = iwqp->ibqp.srq;
827 init_attr->cap = attr->cap;
832 * i40iw_hw_modify_qp - setup cqp for modify qp
833 * @iwdev: iwarp device
834 * @iwqp: qp ptr (user or kernel)
835 * @info: info for modify qp
836 * @wait: flag to wait or not for modify qp completion
838 void i40iw_hw_modify_qp(struct i40iw_device *iwdev, struct i40iw_qp *iwqp,
839 struct i40iw_modify_qp_info *info, bool wait)
841 enum i40iw_status_code status;
842 struct i40iw_cqp_request *cqp_request;
843 struct cqp_commands_info *cqp_info;
844 struct i40iw_modify_qp_info *m_info;
846 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
850 cqp_info = &cqp_request->info;
851 m_info = &cqp_info->in.u.qp_modify.info;
852 memcpy(m_info, info, sizeof(*m_info));
853 cqp_info->cqp_cmd = OP_QP_MODIFY;
854 cqp_info->post_sq = 1;
855 cqp_info->in.u.qp_modify.qp = &iwqp->sc_qp;
856 cqp_info->in.u.qp_modify.scratch = (uintptr_t)cqp_request;
857 status = i40iw_handle_cqp_op(iwdev, cqp_request);
859 i40iw_pr_err("CQP-OP Modify QP fail");
863 * i40iw_modify_qp - modify qp request
864 * @ibqp: qp's pointer for modify
865 * @attr: access attributes
866 * @attr_mask: state mask
869 int i40iw_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
870 int attr_mask, struct ib_udata *udata)
872 struct i40iw_qp *iwqp = to_iwqp(ibqp);
873 struct i40iw_device *iwdev = iwqp->iwdev;
874 struct i40iw_qp_host_ctx_info *ctx_info;
875 struct i40iwarp_offload_info *iwarp_info;
876 struct i40iw_modify_qp_info info;
877 u8 issue_modify_qp = 0;
882 memset(&info, 0, sizeof(info));
883 ctx_info = &iwqp->ctx_info;
884 iwarp_info = &iwqp->iwarp_info;
886 spin_lock_irqsave(&iwqp->lock, flags);
888 if (attr_mask & IB_QP_STATE) {
889 if (iwdev->closing && attr->qp_state != IB_QPS_ERR) {
894 switch (attr->qp_state) {
897 if (iwqp->iwarp_state > (u32)I40IW_QP_STATE_IDLE) {
901 if (iwqp->iwarp_state == I40IW_QP_STATE_INVALID) {
902 info.next_iwarp_state = I40IW_QP_STATE_IDLE;
907 if ((iwqp->iwarp_state > (u32)I40IW_QP_STATE_RTS) ||
914 iwqp->hw_tcp_state = I40IW_TCP_STATE_ESTABLISHED;
916 info.next_iwarp_state = I40IW_QP_STATE_RTS;
917 info.tcp_ctx_valid = true;
918 info.ord_valid = true;
919 info.arp_cache_idx_valid = true;
920 info.cq_num_valid = true;
923 if (iwqp->hw_iwarp_state > (u32)I40IW_QP_STATE_RTS) {
927 if ((iwqp->iwarp_state == (u32)I40IW_QP_STATE_CLOSING) ||
928 (iwqp->iwarp_state < (u32)I40IW_QP_STATE_RTS)) {
932 if (iwqp->iwarp_state > (u32)I40IW_QP_STATE_CLOSING) {
936 info.next_iwarp_state = I40IW_QP_STATE_CLOSING;
940 if (iwqp->iwarp_state >= (u32)I40IW_QP_STATE_TERMINATE) {
944 info.next_iwarp_state = I40IW_QP_STATE_TERMINATE;
949 if (iwqp->iwarp_state == (u32)I40IW_QP_STATE_ERROR) {
953 if (iwqp->sc_qp.term_flags)
954 i40iw_terminate_del_timer(&iwqp->sc_qp);
955 info.next_iwarp_state = I40IW_QP_STATE_ERROR;
956 if ((iwqp->hw_tcp_state > I40IW_TCP_STATE_CLOSED) &&
958 (iwqp->hw_tcp_state != I40IW_TCP_STATE_TIME_WAIT))
959 info.reset_tcp_conn = true;
963 info.next_iwarp_state = I40IW_QP_STATE_ERROR;
970 iwqp->ibqp_state = attr->qp_state;
973 iwqp->iwarp_state = info.next_iwarp_state;
975 info.next_iwarp_state = iwqp->iwarp_state;
977 if (attr_mask & IB_QP_ACCESS_FLAGS) {
978 ctx_info->iwarp_info_valid = true;
979 if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)
980 iwarp_info->wr_rdresp_en = true;
981 if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
982 iwarp_info->wr_rdresp_en = true;
983 if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
984 iwarp_info->rd_enable = true;
985 if (attr->qp_access_flags & IB_ACCESS_MW_BIND)
986 iwarp_info->bind_en = true;
988 if (iwqp->user_mode) {
989 iwarp_info->rd_enable = true;
990 iwarp_info->wr_rdresp_en = true;
991 iwarp_info->priv_mode_en = false;
995 if (ctx_info->iwarp_info_valid) {
996 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
999 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
1000 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
1001 ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
1002 (u64 *)iwqp->host_ctx.va,
1005 i40iw_pr_err("setting QP context\n");
1011 spin_unlock_irqrestore(&iwqp->lock, flags);
1013 if (issue_modify_qp)
1014 i40iw_hw_modify_qp(iwdev, iwqp, &info, true);
1016 if (issue_modify_qp && (iwqp->ibqp_state > IB_QPS_RTS)) {
1018 if (iwqp->cm_id && iwqp->hw_tcp_state) {
1019 spin_lock_irqsave(&iwqp->lock, flags);
1020 iwqp->hw_tcp_state = I40IW_TCP_STATE_CLOSED;
1021 iwqp->last_aeq = I40IW_AE_RESET_SENT;
1022 spin_unlock_irqrestore(&iwqp->lock, flags);
1028 spin_unlock_irqrestore(&iwqp->lock, flags);
1033 * cq_free_resources - free up recources for cq
1034 * @iwdev: iwarp device
1037 static void cq_free_resources(struct i40iw_device *iwdev, struct i40iw_cq *iwcq)
1039 struct i40iw_sc_cq *cq = &iwcq->sc_cq;
1041 if (!iwcq->user_mode)
1042 i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwcq->kmem);
1043 i40iw_free_resource(iwdev, iwdev->allocated_cqs, cq->cq_uk.cq_id);
1047 * i40iw_cq_wq_destroy - send cq destroy cqp
1048 * @iwdev: iwarp device
1049 * @cq: hardware control cq
1051 void i40iw_cq_wq_destroy(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq)
1053 enum i40iw_status_code status;
1054 struct i40iw_cqp_request *cqp_request;
1055 struct cqp_commands_info *cqp_info;
1057 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1061 cqp_info = &cqp_request->info;
1063 cqp_info->cqp_cmd = OP_CQ_DESTROY;
1064 cqp_info->post_sq = 1;
1065 cqp_info->in.u.cq_destroy.cq = cq;
1066 cqp_info->in.u.cq_destroy.scratch = (uintptr_t)cqp_request;
1067 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1069 i40iw_pr_err("CQP-OP Destroy QP fail");
1073 * i40iw_destroy_cq - destroy cq
1074 * @ib_cq: cq pointer
1076 static int i40iw_destroy_cq(struct ib_cq *ib_cq)
1078 struct i40iw_cq *iwcq;
1079 struct i40iw_device *iwdev;
1080 struct i40iw_sc_cq *cq;
1083 i40iw_pr_err("ib_cq == NULL\n");
1087 iwcq = to_iwcq(ib_cq);
1088 iwdev = to_iwdev(ib_cq->device);
1090 i40iw_cq_wq_destroy(iwdev, cq);
1091 cq_free_resources(iwdev, iwcq);
1093 i40iw_rem_devusecount(iwdev);
1098 * i40iw_create_cq - create cq
1099 * @ibdev: device pointer from stack
1100 * @attr: attributes for cq
1101 * @context: user context created during alloc
1104 static struct ib_cq *i40iw_create_cq(struct ib_device *ibdev,
1105 const struct ib_cq_init_attr *attr,
1106 struct ib_ucontext *context,
1107 struct ib_udata *udata)
1109 struct i40iw_device *iwdev = to_iwdev(ibdev);
1110 struct i40iw_cq *iwcq;
1111 struct i40iw_pbl *iwpbl;
1113 struct i40iw_sc_cq *cq;
1114 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
1115 struct i40iw_cq_init_info info;
1116 enum i40iw_status_code status;
1117 struct i40iw_cqp_request *cqp_request;
1118 struct cqp_commands_info *cqp_info;
1119 struct i40iw_cq_uk_init_info *ukinfo = &info.cq_uk_init_info;
1120 unsigned long flags;
1122 int entries = attr->cqe;
1125 return ERR_PTR(-ENODEV);
1127 if (entries > iwdev->max_cqe)
1128 return ERR_PTR(-EINVAL);
1130 iwcq = kzalloc(sizeof(*iwcq), GFP_KERNEL);
1132 return ERR_PTR(-ENOMEM);
1134 memset(&info, 0, sizeof(info));
1136 err_code = i40iw_alloc_resource(iwdev, iwdev->allocated_cqs,
1137 iwdev->max_cq, &cq_num,
1143 cq->back_cq = (void *)iwcq;
1144 spin_lock_init(&iwcq->lock);
1147 ukinfo->cq_size = max(entries, 4);
1148 ukinfo->cq_id = cq_num;
1149 iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;
1151 if (attr->comp_vector < iwdev->ceqs_count)
1152 info.ceq_id = attr->comp_vector;
1153 info.ceq_id_valid = true;
1155 info.type = I40IW_CQ_TYPE_IWARP;
1157 struct i40iw_ucontext *ucontext;
1158 struct i40iw_create_cq_req req;
1159 struct i40iw_cq_mr *cqmr;
1161 memset(&req, 0, sizeof(req));
1162 iwcq->user_mode = true;
1163 ucontext = to_ucontext(context);
1164 if (ib_copy_from_udata(&req, udata, sizeof(struct i40iw_create_cq_req)))
1165 goto cq_free_resources;
1167 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
1168 iwpbl = i40iw_get_pbl((unsigned long)req.user_cq_buffer,
1169 &ucontext->cq_reg_mem_list);
1170 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
1173 goto cq_free_resources;
1176 iwcq->iwpbl = iwpbl;
1177 iwcq->cq_mem_size = 0;
1178 cqmr = &iwpbl->cq_mr;
1179 info.shadow_area_pa = cpu_to_le64(cqmr->shadow);
1180 if (iwpbl->pbl_allocated) {
1181 info.virtual_map = true;
1182 info.pbl_chunk_size = 1;
1183 info.first_pm_pbl_idx = cqmr->cq_pbl.idx;
1185 info.cq_base_pa = cqmr->cq_pbl.addr;
1188 /* Kmode allocations */
1192 rsize = info.cq_uk_init_info.cq_size * sizeof(struct i40iw_cqe);
1193 rsize = round_up(rsize, 256);
1194 shadow = I40IW_SHADOW_AREA_SIZE << 3;
1195 status = i40iw_allocate_dma_mem(dev->hw, &iwcq->kmem,
1196 rsize + shadow, 256);
1199 goto cq_free_resources;
1201 ukinfo->cq_base = iwcq->kmem.va;
1202 info.cq_base_pa = iwcq->kmem.pa;
1203 info.shadow_area_pa = info.cq_base_pa + rsize;
1204 ukinfo->shadow_area = iwcq->kmem.va + rsize;
1207 if (dev->iw_priv_cq_ops->cq_init(cq, &info)) {
1208 i40iw_pr_err("init cq fail\n");
1210 goto cq_free_resources;
1213 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1216 goto cq_free_resources;
1219 cqp_info = &cqp_request->info;
1220 cqp_info->cqp_cmd = OP_CQ_CREATE;
1221 cqp_info->post_sq = 1;
1222 cqp_info->in.u.cq_create.cq = cq;
1223 cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
1224 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1226 i40iw_pr_err("CQP-OP Create QP fail");
1228 goto cq_free_resources;
1232 struct i40iw_create_cq_resp resp;
1234 memset(&resp, 0, sizeof(resp));
1235 resp.cq_id = info.cq_uk_init_info.cq_id;
1236 resp.cq_size = info.cq_uk_init_info.cq_size;
1237 if (ib_copy_to_udata(udata, &resp, sizeof(resp))) {
1238 i40iw_pr_err("copy to user data\n");
1244 i40iw_add_devusecount(iwdev);
1245 return (struct ib_cq *)iwcq;
1248 i40iw_cq_wq_destroy(iwdev, cq);
1250 cq_free_resources(iwdev, iwcq);
1253 return ERR_PTR(err_code);
1257 * i40iw_get_user_access - get hw access from IB access
1258 * @acc: IB access to return hw access
1260 static inline u16 i40iw_get_user_access(int acc)
1264 access |= (acc & IB_ACCESS_LOCAL_WRITE) ? I40IW_ACCESS_FLAGS_LOCALWRITE : 0;
1265 access |= (acc & IB_ACCESS_REMOTE_WRITE) ? I40IW_ACCESS_FLAGS_REMOTEWRITE : 0;
1266 access |= (acc & IB_ACCESS_REMOTE_READ) ? I40IW_ACCESS_FLAGS_REMOTEREAD : 0;
1267 access |= (acc & IB_ACCESS_MW_BIND) ? I40IW_ACCESS_FLAGS_BIND_WINDOW : 0;
1272 * i40iw_free_stag - free stag resource
1273 * @iwdev: iwarp device
1274 * @stag: stag to free
1276 static void i40iw_free_stag(struct i40iw_device *iwdev, u32 stag)
1280 stag_idx = (stag & iwdev->mr_stagmask) >> I40IW_CQPSQ_STAG_IDX_SHIFT;
1281 i40iw_free_resource(iwdev, iwdev->allocated_mrs, stag_idx);
1282 i40iw_rem_devusecount(iwdev);
1286 * i40iw_create_stag - create random stag
1287 * @iwdev: iwarp device
1289 static u32 i40iw_create_stag(struct i40iw_device *iwdev)
1293 u32 next_stag_index;
1299 get_random_bytes(&random, sizeof(random));
1300 consumer_key = (u8)random;
1302 driver_key = random & ~iwdev->mr_stagmask;
1303 next_stag_index = (random & iwdev->mr_stagmask) >> 8;
1304 next_stag_index %= iwdev->max_mr;
1306 ret = i40iw_alloc_resource(iwdev,
1307 iwdev->allocated_mrs, iwdev->max_mr,
1308 &stag_index, &next_stag_index);
1310 stag = stag_index << I40IW_CQPSQ_STAG_IDX_SHIFT;
1312 stag += (u32)consumer_key;
1313 i40iw_add_devusecount(iwdev);
1319 * i40iw_next_pbl_addr - Get next pbl address
1320 * @pbl: pointer to a pble
1321 * @pinfo: info pointer
1324 static inline u64 *i40iw_next_pbl_addr(u64 *pbl,
1325 struct i40iw_pble_info **pinfo,
1329 if ((!(*pinfo)) || (*idx != (*pinfo)->cnt))
1333 return (u64 *)(*pinfo)->addr;
1337 * i40iw_copy_user_pgaddrs - copy user page address to pble's os locally
1338 * @iwmr: iwmr for IB's user page addresses
1339 * @pbl: ple pointer to save 1 level or 0 level pble
1340 * @level: indicated level 0, 1 or 2
1342 static void i40iw_copy_user_pgaddrs(struct i40iw_mr *iwmr,
1344 enum i40iw_pble_level level)
1346 struct ib_umem *region = iwmr->region;
1347 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1348 int chunk_pages, entry, i;
1349 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1350 struct i40iw_pble_info *pinfo;
1351 struct scatterlist *sg;
1355 pinfo = (level == I40IW_LEVEL_1) ? NULL : palloc->level2.leaf;
1357 for_each_sg(region->sg_head.sgl, sg, region->nmap, entry) {
1358 chunk_pages = sg_dma_len(sg) >> region->page_shift;
1359 if ((iwmr->type == IW_MEMREG_TYPE_QP) &&
1360 !iwpbl->qp_mr.sq_page)
1361 iwpbl->qp_mr.sq_page = sg_page(sg);
1362 for (i = 0; i < chunk_pages; i++) {
1363 pg_addr = sg_dma_address(sg) +
1364 (i << region->page_shift);
1366 if ((entry + i) == 0)
1367 *pbl = cpu_to_le64(pg_addr & iwmr->page_msk);
1368 else if (!(pg_addr & ~iwmr->page_msk))
1369 *pbl = cpu_to_le64(pg_addr);
1372 pbl = i40iw_next_pbl_addr(pbl, &pinfo, &idx);
1378 * i40iw_set_hugetlb_params - set MR pg size and mask to huge pg values.
1379 * @addr: virtual address
1380 * @iwmr: mr pointer for this memory registration
1382 static void i40iw_set_hugetlb_values(u64 addr, struct i40iw_mr *iwmr)
1384 struct vm_area_struct *vma;
1387 vma = find_vma(current->mm, addr);
1388 if (vma && is_vm_hugetlb_page(vma)) {
1389 h = hstate_vma(vma);
1390 if (huge_page_size(h) == 0x200000) {
1391 iwmr->page_size = huge_page_size(h);
1392 iwmr->page_msk = huge_page_mask(h);
1398 * i40iw_check_mem_contiguous - check if pbls stored in arr are contiguous
1399 * @arr: lvl1 pbl array
1400 * @npages: page count
1401 * pg_size: page size
1404 static bool i40iw_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size)
1408 for (pg_idx = 0; pg_idx < npages; pg_idx++) {
1409 if ((*arr + (pg_size * pg_idx)) != arr[pg_idx])
1416 * i40iw_check_mr_contiguous - check if MR is physically contiguous
1417 * @palloc: pbl allocation struct
1418 * pg_size: page size
1420 static bool i40iw_check_mr_contiguous(struct i40iw_pble_alloc *palloc, u32 pg_size)
1422 struct i40iw_pble_level2 *lvl2 = &palloc->level2;
1423 struct i40iw_pble_info *leaf = lvl2->leaf;
1425 u64 *start_addr = NULL;
1429 if (palloc->level == I40IW_LEVEL_1) {
1430 arr = (u64 *)palloc->level1.addr;
1431 ret = i40iw_check_mem_contiguous(arr, palloc->total_cnt, pg_size);
1435 start_addr = (u64 *)leaf->addr;
1437 for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {
1438 arr = (u64 *)leaf->addr;
1439 if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr)
1441 ret = i40iw_check_mem_contiguous(arr, leaf->cnt, pg_size);
1450 * i40iw_setup_pbles - copy user pg address to pble's
1451 * @iwdev: iwarp device
1452 * @iwmr: mr pointer for this memory registration
1453 * @use_pbles: flag if to use pble's
1455 static int i40iw_setup_pbles(struct i40iw_device *iwdev,
1456 struct i40iw_mr *iwmr,
1459 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1460 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1461 struct i40iw_pble_info *pinfo;
1463 enum i40iw_status_code status;
1464 enum i40iw_pble_level level = I40IW_LEVEL_1;
1467 mutex_lock(&iwdev->pbl_mutex);
1468 status = i40iw_get_pble(&iwdev->sc_dev, iwdev->pble_rsrc, palloc, iwmr->page_cnt);
1469 mutex_unlock(&iwdev->pbl_mutex);
1473 iwpbl->pbl_allocated = true;
1474 level = palloc->level;
1475 pinfo = (level == I40IW_LEVEL_1) ? &palloc->level1 : palloc->level2.leaf;
1476 pbl = (u64 *)pinfo->addr;
1478 pbl = iwmr->pgaddrmem;
1481 i40iw_copy_user_pgaddrs(iwmr, pbl, level);
1484 iwmr->pgaddrmem[0] = *pbl;
1490 * i40iw_handle_q_mem - handle memory for qp and cq
1491 * @iwdev: iwarp device
1492 * @req: information for q memory management
1493 * @iwpbl: pble struct
1494 * @use_pbles: flag to use pble
1496 static int i40iw_handle_q_mem(struct i40iw_device *iwdev,
1497 struct i40iw_mem_reg_req *req,
1498 struct i40iw_pbl *iwpbl,
1501 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1502 struct i40iw_mr *iwmr = iwpbl->iwmr;
1503 struct i40iw_qp_mr *qpmr = &iwpbl->qp_mr;
1504 struct i40iw_cq_mr *cqmr = &iwpbl->cq_mr;
1505 struct i40iw_hmc_pble *hmc_p;
1506 u64 *arr = iwmr->pgaddrmem;
1512 total = req->sq_pages + req->rq_pages + req->cq_pages;
1513 pg_size = iwmr->page_size;
1515 err = i40iw_setup_pbles(iwdev, iwmr, use_pbles);
1519 if (use_pbles && (palloc->level != I40IW_LEVEL_1)) {
1520 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1521 iwpbl->pbl_allocated = false;
1526 arr = (u64 *)palloc->level1.addr;
1528 if (iwmr->type == IW_MEMREG_TYPE_QP) {
1529 hmc_p = &qpmr->sq_pbl;
1530 qpmr->shadow = (dma_addr_t)arr[total];
1533 ret = i40iw_check_mem_contiguous(arr, req->sq_pages, pg_size);
1535 ret = i40iw_check_mem_contiguous(&arr[req->sq_pages], req->rq_pages, pg_size);
1539 hmc_p->idx = palloc->level1.idx;
1540 hmc_p = &qpmr->rq_pbl;
1541 hmc_p->idx = palloc->level1.idx + req->sq_pages;
1543 hmc_p->addr = arr[0];
1544 hmc_p = &qpmr->rq_pbl;
1545 hmc_p->addr = arr[req->sq_pages];
1548 hmc_p = &cqmr->cq_pbl;
1549 cqmr->shadow = (dma_addr_t)arr[total];
1552 ret = i40iw_check_mem_contiguous(arr, req->cq_pages, pg_size);
1555 hmc_p->idx = palloc->level1.idx;
1557 hmc_p->addr = arr[0];
1560 if (use_pbles && ret) {
1561 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1562 iwpbl->pbl_allocated = false;
1569 * i40iw_hw_alloc_stag - cqp command to allocate stag
1570 * @iwdev: iwarp device
1571 * @iwmr: iwarp mr pointer
1573 static int i40iw_hw_alloc_stag(struct i40iw_device *iwdev, struct i40iw_mr *iwmr)
1575 struct i40iw_allocate_stag_info *info;
1576 struct i40iw_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
1577 enum i40iw_status_code status;
1579 struct i40iw_cqp_request *cqp_request;
1580 struct cqp_commands_info *cqp_info;
1582 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1586 cqp_info = &cqp_request->info;
1587 info = &cqp_info->in.u.alloc_stag.info;
1588 memset(info, 0, sizeof(*info));
1589 info->page_size = PAGE_SIZE;
1590 info->stag_idx = iwmr->stag >> I40IW_CQPSQ_STAG_IDX_SHIFT;
1591 info->pd_id = iwpd->sc_pd.pd_id;
1592 info->total_len = iwmr->length;
1593 info->remote_access = true;
1594 cqp_info->cqp_cmd = OP_ALLOC_STAG;
1595 cqp_info->post_sq = 1;
1596 cqp_info->in.u.alloc_stag.dev = &iwdev->sc_dev;
1597 cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request;
1599 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1602 i40iw_pr_err("CQP-OP MR Reg fail");
1608 * i40iw_alloc_mr - register stag for fast memory registration
1610 * @mr_type: memory for stag registrion
1611 * @max_num_sg: man number of pages
1613 static struct ib_mr *i40iw_alloc_mr(struct ib_pd *pd,
1614 enum ib_mr_type mr_type,
1617 struct i40iw_pd *iwpd = to_iwpd(pd);
1618 struct i40iw_device *iwdev = to_iwdev(pd->device);
1619 struct i40iw_pble_alloc *palloc;
1620 struct i40iw_pbl *iwpbl;
1621 struct i40iw_mr *iwmr;
1622 enum i40iw_status_code status;
1624 int err_code = -ENOMEM;
1626 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
1628 return ERR_PTR(-ENOMEM);
1630 stag = i40iw_create_stag(iwdev);
1632 err_code = -EOVERFLOW;
1636 iwmr->ibmr.rkey = stag;
1637 iwmr->ibmr.lkey = stag;
1639 iwmr->ibmr.device = pd->device;
1640 iwpbl = &iwmr->iwpbl;
1642 iwmr->type = IW_MEMREG_TYPE_MEM;
1643 palloc = &iwpbl->pble_alloc;
1644 iwmr->page_cnt = max_num_sg;
1645 mutex_lock(&iwdev->pbl_mutex);
1646 status = i40iw_get_pble(&iwdev->sc_dev, iwdev->pble_rsrc, palloc, iwmr->page_cnt);
1647 mutex_unlock(&iwdev->pbl_mutex);
1651 if (palloc->level != I40IW_LEVEL_1)
1653 err_code = i40iw_hw_alloc_stag(iwdev, iwmr);
1656 iwpbl->pbl_allocated = true;
1657 i40iw_add_pdusecount(iwpd);
1660 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1662 i40iw_free_stag(iwdev, stag);
1665 return ERR_PTR(err_code);
1669 * i40iw_set_page - populate pbl list for fmr
1670 * @ibmr: ib mem to access iwarp mr pointer
1671 * @addr: page dma address fro pbl list
1673 static int i40iw_set_page(struct ib_mr *ibmr, u64 addr)
1675 struct i40iw_mr *iwmr = to_iwmr(ibmr);
1676 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1677 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1680 if (unlikely(iwmr->npages == iwmr->page_cnt))
1683 pbl = (u64 *)palloc->level1.addr;
1684 pbl[iwmr->npages++] = cpu_to_le64(addr);
1689 * i40iw_map_mr_sg - map of sg list for fmr
1690 * @ibmr: ib mem to access iwarp mr pointer
1691 * @sg: scatter gather list for fmr
1692 * @sg_nents: number of sg pages
1694 static int i40iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
1695 int sg_nents, unsigned int *sg_offset)
1697 struct i40iw_mr *iwmr = to_iwmr(ibmr);
1700 return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, i40iw_set_page);
1704 * i40iw_drain_sq - drain the send queue
1705 * @ibqp: ib qp pointer
1707 static void i40iw_drain_sq(struct ib_qp *ibqp)
1709 struct i40iw_qp *iwqp = to_iwqp(ibqp);
1710 struct i40iw_sc_qp *qp = &iwqp->sc_qp;
1712 if (I40IW_RING_MORE_WORK(qp->qp_uk.sq_ring))
1713 wait_for_completion(&iwqp->sq_drained);
1717 * i40iw_drain_rq - drain the receive queue
1718 * @ibqp: ib qp pointer
1720 static void i40iw_drain_rq(struct ib_qp *ibqp)
1722 struct i40iw_qp *iwqp = to_iwqp(ibqp);
1723 struct i40iw_sc_qp *qp = &iwqp->sc_qp;
1725 if (I40IW_RING_MORE_WORK(qp->qp_uk.rq_ring))
1726 wait_for_completion(&iwqp->rq_drained);
1730 * i40iw_hwreg_mr - send cqp command for memory registration
1731 * @iwdev: iwarp device
1732 * @iwmr: iwarp mr pointer
1733 * @access: access for MR
1735 static int i40iw_hwreg_mr(struct i40iw_device *iwdev,
1736 struct i40iw_mr *iwmr,
1739 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
1740 struct i40iw_reg_ns_stag_info *stag_info;
1741 struct i40iw_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
1742 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
1743 enum i40iw_status_code status;
1745 struct i40iw_cqp_request *cqp_request;
1746 struct cqp_commands_info *cqp_info;
1748 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
1752 cqp_info = &cqp_request->info;
1753 stag_info = &cqp_info->in.u.mr_reg_non_shared.info;
1754 memset(stag_info, 0, sizeof(*stag_info));
1755 stag_info->va = (void *)(unsigned long)iwpbl->user_base;
1756 stag_info->stag_idx = iwmr->stag >> I40IW_CQPSQ_STAG_IDX_SHIFT;
1757 stag_info->stag_key = (u8)iwmr->stag;
1758 stag_info->total_len = iwmr->length;
1759 stag_info->access_rights = access;
1760 stag_info->pd_id = iwpd->sc_pd.pd_id;
1761 stag_info->addr_type = I40IW_ADDR_TYPE_VA_BASED;
1762 stag_info->page_size = iwmr->page_size;
1764 if (iwpbl->pbl_allocated) {
1765 if (palloc->level == I40IW_LEVEL_1) {
1766 stag_info->first_pm_pbl_index = palloc->level1.idx;
1767 stag_info->chunk_size = 1;
1769 stag_info->first_pm_pbl_index = palloc->level2.root.idx;
1770 stag_info->chunk_size = 3;
1773 stag_info->reg_addr_pa = iwmr->pgaddrmem[0];
1776 cqp_info->cqp_cmd = OP_MR_REG_NON_SHARED;
1777 cqp_info->post_sq = 1;
1778 cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->sc_dev;
1779 cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request;
1781 status = i40iw_handle_cqp_op(iwdev, cqp_request);
1784 i40iw_pr_err("CQP-OP MR Reg fail");
1790 * i40iw_reg_user_mr - Register a user memory region
1792 * @start: virtual start address
1793 * @length: length of mr
1794 * @virt: virtual address
1795 * @acc: access of mr
1798 static struct ib_mr *i40iw_reg_user_mr(struct ib_pd *pd,
1803 struct ib_udata *udata)
1805 struct i40iw_pd *iwpd = to_iwpd(pd);
1806 struct i40iw_device *iwdev = to_iwdev(pd->device);
1807 struct i40iw_ucontext *ucontext;
1808 struct i40iw_pble_alloc *palloc;
1809 struct i40iw_pbl *iwpbl;
1810 struct i40iw_mr *iwmr;
1811 struct ib_umem *region;
1812 struct i40iw_mem_reg_req req;
1817 bool use_pbles = false;
1818 unsigned long flags;
1824 return ERR_PTR(-ENODEV);
1826 if (length > I40IW_MAX_MR_SIZE)
1827 return ERR_PTR(-EINVAL);
1828 region = ib_umem_get(pd->uobject->context, start, length, acc, 0);
1830 return (struct ib_mr *)region;
1832 if (ib_copy_from_udata(&req, udata, sizeof(req))) {
1833 ib_umem_release(region);
1834 return ERR_PTR(-EFAULT);
1837 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
1839 ib_umem_release(region);
1840 return ERR_PTR(-ENOMEM);
1843 iwpbl = &iwmr->iwpbl;
1845 iwmr->region = region;
1847 iwmr->ibmr.device = pd->device;
1848 ucontext = to_ucontext(pd->uobject->context);
1850 iwmr->page_size = PAGE_SIZE;
1851 iwmr->page_msk = PAGE_MASK;
1853 if (region->hugetlb && (req.reg_type == IW_MEMREG_TYPE_MEM))
1854 i40iw_set_hugetlb_values(start, iwmr);
1856 region_length = region->length + (start & (iwmr->page_size - 1));
1857 pg_shift = ffs(iwmr->page_size) - 1;
1858 pbl_depth = region_length >> pg_shift;
1859 pbl_depth += (region_length & (iwmr->page_size - 1)) ? 1 : 0;
1860 iwmr->length = region->length;
1862 iwpbl->user_base = virt;
1863 palloc = &iwpbl->pble_alloc;
1865 iwmr->type = req.reg_type;
1866 iwmr->page_cnt = (u32)pbl_depth;
1868 switch (req.reg_type) {
1869 case IW_MEMREG_TYPE_QP:
1870 use_pbles = ((req.sq_pages + req.rq_pages) > 2);
1871 err = i40iw_handle_q_mem(iwdev, &req, iwpbl, use_pbles);
1874 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
1875 list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list);
1876 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
1878 case IW_MEMREG_TYPE_CQ:
1879 use_pbles = (req.cq_pages > 1);
1880 err = i40iw_handle_q_mem(iwdev, &req, iwpbl, use_pbles);
1884 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
1885 list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list);
1886 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
1888 case IW_MEMREG_TYPE_MEM:
1889 use_pbles = (iwmr->page_cnt != 1);
1890 access = I40IW_ACCESS_FLAGS_LOCALREAD;
1892 err = i40iw_setup_pbles(iwdev, iwmr, use_pbles);
1897 ret = i40iw_check_mr_contiguous(palloc, iwmr->page_size);
1899 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1900 iwpbl->pbl_allocated = false;
1904 access |= i40iw_get_user_access(acc);
1905 stag = i40iw_create_stag(iwdev);
1912 iwmr->ibmr.rkey = stag;
1913 iwmr->ibmr.lkey = stag;
1915 err = i40iw_hwreg_mr(iwdev, iwmr, access);
1917 i40iw_free_stag(iwdev, stag);
1926 iwmr->type = req.reg_type;
1927 if (req.reg_type == IW_MEMREG_TYPE_MEM)
1928 i40iw_add_pdusecount(iwpd);
1932 if (palloc->level != I40IW_LEVEL_0 && iwpbl->pbl_allocated)
1933 i40iw_free_pble(iwdev->pble_rsrc, palloc);
1934 ib_umem_release(region);
1936 return ERR_PTR(err);
1940 * i40iw_reg_phys_mr - register kernel physical memory
1942 * @addr: physical address of memory to register
1943 * @size: size of memory to register
1944 * @acc: Access rights
1945 * @iova_start: start of virtual address for physical buffers
1947 struct ib_mr *i40iw_reg_phys_mr(struct ib_pd *pd,
1953 struct i40iw_pd *iwpd = to_iwpd(pd);
1954 struct i40iw_device *iwdev = to_iwdev(pd->device);
1955 struct i40iw_pbl *iwpbl;
1956 struct i40iw_mr *iwmr;
1957 enum i40iw_status_code status;
1959 u16 access = I40IW_ACCESS_FLAGS_LOCALREAD;
1962 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
1964 return ERR_PTR(-ENOMEM);
1966 iwmr->ibmr.device = pd->device;
1967 iwpbl = &iwmr->iwpbl;
1969 iwmr->type = IW_MEMREG_TYPE_MEM;
1970 iwpbl->user_base = *iova_start;
1971 stag = i40iw_create_stag(iwdev);
1976 access |= i40iw_get_user_access(acc);
1978 iwmr->ibmr.rkey = stag;
1979 iwmr->ibmr.lkey = stag;
1981 iwmr->pgaddrmem[0] = addr;
1982 iwmr->length = size;
1983 status = i40iw_hwreg_mr(iwdev, iwmr, access);
1985 i40iw_free_stag(iwdev, stag);
1990 i40iw_add_pdusecount(iwpd);
1994 return ERR_PTR(ret);
1998 * i40iw_get_dma_mr - register physical mem
2000 * @acc: access for memory
2002 static struct ib_mr *i40iw_get_dma_mr(struct ib_pd *pd, int acc)
2006 return i40iw_reg_phys_mr(pd, 0, 0, acc, &kva);
2010 * i40iw_del_mem_list - Deleting pbl list entries for CQ/QP
2011 * @iwmr: iwmr for IB's user page addresses
2012 * @ucontext: ptr to user context
2014 static void i40iw_del_memlist(struct i40iw_mr *iwmr,
2015 struct i40iw_ucontext *ucontext)
2017 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
2018 unsigned long flags;
2020 switch (iwmr->type) {
2021 case IW_MEMREG_TYPE_CQ:
2022 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
2023 if (!list_empty(&ucontext->cq_reg_mem_list))
2024 list_del(&iwpbl->list);
2025 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
2027 case IW_MEMREG_TYPE_QP:
2028 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
2029 if (!list_empty(&ucontext->qp_reg_mem_list))
2030 list_del(&iwpbl->list);
2031 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
2039 * i40iw_dereg_mr - deregister mr
2040 * @ib_mr: mr ptr for dereg
2042 static int i40iw_dereg_mr(struct ib_mr *ib_mr)
2044 struct ib_pd *ibpd = ib_mr->pd;
2045 struct i40iw_pd *iwpd = to_iwpd(ibpd);
2046 struct i40iw_mr *iwmr = to_iwmr(ib_mr);
2047 struct i40iw_device *iwdev = to_iwdev(ib_mr->device);
2048 enum i40iw_status_code status;
2049 struct i40iw_dealloc_stag_info *info;
2050 struct i40iw_pbl *iwpbl = &iwmr->iwpbl;
2051 struct i40iw_pble_alloc *palloc = &iwpbl->pble_alloc;
2052 struct i40iw_cqp_request *cqp_request;
2053 struct cqp_commands_info *cqp_info;
2057 ib_umem_release(iwmr->region);
2059 if (iwmr->type != IW_MEMREG_TYPE_MEM) {
2060 if (ibpd->uobject) {
2061 struct i40iw_ucontext *ucontext;
2063 ucontext = to_ucontext(ibpd->uobject->context);
2064 i40iw_del_memlist(iwmr, ucontext);
2066 if (iwpbl->pbl_allocated)
2067 i40iw_free_pble(iwdev->pble_rsrc, palloc);
2072 cqp_request = i40iw_get_cqp_request(&iwdev->cqp, true);
2076 cqp_info = &cqp_request->info;
2077 info = &cqp_info->in.u.dealloc_stag.info;
2078 memset(info, 0, sizeof(*info));
2080 info->pd_id = cpu_to_le32(iwpd->sc_pd.pd_id & 0x00007fff);
2081 info->stag_idx = RS_64_1(ib_mr->rkey, I40IW_CQPSQ_STAG_IDX_SHIFT);
2082 stag_idx = info->stag_idx;
2084 if (iwpbl->pbl_allocated)
2085 info->dealloc_pbl = true;
2087 cqp_info->cqp_cmd = OP_DEALLOC_STAG;
2088 cqp_info->post_sq = 1;
2089 cqp_info->in.u.dealloc_stag.dev = &iwdev->sc_dev;
2090 cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;
2091 status = i40iw_handle_cqp_op(iwdev, cqp_request);
2093 i40iw_pr_err("CQP-OP dealloc failed for stag_idx = 0x%x\n", stag_idx);
2094 i40iw_rem_pdusecount(iwpd, iwdev);
2095 i40iw_free_stag(iwdev, iwmr->stag);
2096 if (iwpbl->pbl_allocated)
2097 i40iw_free_pble(iwdev->pble_rsrc, palloc);
2105 static ssize_t i40iw_show_rev(struct device *dev,
2106 struct device_attribute *attr, char *buf)
2108 struct i40iw_ib_device *iwibdev = container_of(dev,
2109 struct i40iw_ib_device,
2111 u32 hw_rev = iwibdev->iwdev->sc_dev.hw_rev;
2113 return sprintf(buf, "%x\n", hw_rev);
2119 static ssize_t i40iw_show_hca(struct device *dev,
2120 struct device_attribute *attr, char *buf)
2122 return sprintf(buf, "I40IW\n");
2128 static ssize_t i40iw_show_board(struct device *dev,
2129 struct device_attribute *attr,
2132 return sprintf(buf, "%.*s\n", 32, "I40IW Board ID");
2135 static DEVICE_ATTR(hw_rev, S_IRUGO, i40iw_show_rev, NULL);
2136 static DEVICE_ATTR(hca_type, S_IRUGO, i40iw_show_hca, NULL);
2137 static DEVICE_ATTR(board_id, S_IRUGO, i40iw_show_board, NULL);
2139 static struct device_attribute *i40iw_dev_attributes[] = {
2146 * i40iw_copy_sg_list - copy sg list for qp
2147 * @sg_list: copied into sg_list
2148 * @sgl: copy from sgl
2149 * @num_sges: count of sg entries
2151 static void i40iw_copy_sg_list(struct i40iw_sge *sg_list, struct ib_sge *sgl, int num_sges)
2155 for (i = 0; (i < num_sges) && (i < I40IW_MAX_WQ_FRAGMENT_COUNT); i++) {
2156 sg_list[i].tag_off = sgl[i].addr;
2157 sg_list[i].len = sgl[i].length;
2158 sg_list[i].stag = sgl[i].lkey;
2163 * i40iw_post_send - kernel application wr
2164 * @ibqp: qp ptr for wr
2165 * @ib_wr: work request ptr
2166 * @bad_wr: return of bad wr if err
2168 static int i40iw_post_send(struct ib_qp *ibqp,
2169 struct ib_send_wr *ib_wr,
2170 struct ib_send_wr **bad_wr)
2172 struct i40iw_qp *iwqp;
2173 struct i40iw_qp_uk *ukqp;
2174 struct i40iw_post_sq_info info;
2175 enum i40iw_status_code ret;
2177 unsigned long flags;
2180 iwqp = (struct i40iw_qp *)ibqp;
2181 ukqp = &iwqp->sc_qp.qp_uk;
2183 spin_lock_irqsave(&iwqp->lock, flags);
2186 memset(&info, 0, sizeof(info));
2187 info.wr_id = (u64)(ib_wr->wr_id);
2188 if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all)
2189 info.signaled = true;
2190 if (ib_wr->send_flags & IB_SEND_FENCE)
2191 info.read_fence = true;
2193 switch (ib_wr->opcode) {
2196 case IB_WR_SEND_WITH_INV:
2197 if (ib_wr->opcode == IB_WR_SEND) {
2198 if (ib_wr->send_flags & IB_SEND_SOLICITED)
2199 info.op_type = I40IW_OP_TYPE_SEND_SOL;
2201 info.op_type = I40IW_OP_TYPE_SEND;
2203 if (ib_wr->send_flags & IB_SEND_SOLICITED)
2204 info.op_type = I40IW_OP_TYPE_SEND_SOL_INV;
2206 info.op_type = I40IW_OP_TYPE_SEND_INV;
2209 if (ib_wr->send_flags & IB_SEND_INLINE) {
2210 info.op.inline_send.data = (void *)(unsigned long)ib_wr->sg_list[0].addr;
2211 info.op.inline_send.len = ib_wr->sg_list[0].length;
2212 ret = ukqp->ops.iw_inline_send(ukqp, &info, ib_wr->ex.invalidate_rkey, false);
2214 info.op.send.num_sges = ib_wr->num_sge;
2215 info.op.send.sg_list = (struct i40iw_sge *)ib_wr->sg_list;
2216 ret = ukqp->ops.iw_send(ukqp, &info, ib_wr->ex.invalidate_rkey, false);
2220 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2226 case IB_WR_RDMA_WRITE:
2227 info.op_type = I40IW_OP_TYPE_RDMA_WRITE;
2229 if (ib_wr->send_flags & IB_SEND_INLINE) {
2230 info.op.inline_rdma_write.data = (void *)(unsigned long)ib_wr->sg_list[0].addr;
2231 info.op.inline_rdma_write.len = ib_wr->sg_list[0].length;
2232 info.op.inline_rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
2233 info.op.inline_rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey;
2234 info.op.inline_rdma_write.rem_addr.len = ib_wr->sg_list->length;
2235 ret = ukqp->ops.iw_inline_rdma_write(ukqp, &info, false);
2237 info.op.rdma_write.lo_sg_list = (void *)ib_wr->sg_list;
2238 info.op.rdma_write.num_lo_sges = ib_wr->num_sge;
2239 info.op.rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
2240 info.op.rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey;
2241 info.op.rdma_write.rem_addr.len = ib_wr->sg_list->length;
2242 ret = ukqp->ops.iw_rdma_write(ukqp, &info, false);
2246 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2252 case IB_WR_RDMA_READ_WITH_INV:
2255 case IB_WR_RDMA_READ:
2256 if (ib_wr->num_sge > I40IW_MAX_SGE_RD) {
2260 info.op_type = I40IW_OP_TYPE_RDMA_READ;
2261 info.op.rdma_read.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
2262 info.op.rdma_read.rem_addr.stag = rdma_wr(ib_wr)->rkey;
2263 info.op.rdma_read.rem_addr.len = ib_wr->sg_list->length;
2264 info.op.rdma_read.lo_addr.tag_off = ib_wr->sg_list->addr;
2265 info.op.rdma_read.lo_addr.stag = ib_wr->sg_list->lkey;
2266 info.op.rdma_read.lo_addr.len = ib_wr->sg_list->length;
2267 ret = ukqp->ops.iw_rdma_read(ukqp, &info, inv_stag, false);
2269 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2275 case IB_WR_LOCAL_INV:
2276 info.op_type = I40IW_OP_TYPE_INV_STAG;
2277 info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey;
2278 ret = ukqp->ops.iw_stag_local_invalidate(ukqp, &info, true);
2284 struct i40iw_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr);
2285 int flags = reg_wr(ib_wr)->access;
2286 struct i40iw_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc;
2287 struct i40iw_sc_dev *dev = &iwqp->iwdev->sc_dev;
2288 struct i40iw_fast_reg_stag_info info;
2290 memset(&info, 0, sizeof(info));
2291 info.access_rights = I40IW_ACCESS_FLAGS_LOCALREAD;
2292 info.access_rights |= i40iw_get_user_access(flags);
2293 info.stag_key = reg_wr(ib_wr)->key & 0xff;
2294 info.stag_idx = reg_wr(ib_wr)->key >> 8;
2295 info.page_size = reg_wr(ib_wr)->mr->page_size;
2296 info.wr_id = ib_wr->wr_id;
2298 info.addr_type = I40IW_ADDR_TYPE_VA_BASED;
2299 info.va = (void *)(uintptr_t)iwmr->ibmr.iova;
2300 info.total_len = iwmr->ibmr.length;
2301 info.reg_addr_pa = *(u64 *)palloc->level1.addr;
2302 info.first_pm_pbl_index = palloc->level1.idx;
2303 info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;
2304 info.signaled = ib_wr->send_flags & IB_SEND_SIGNALED;
2306 if (iwmr->npages > I40IW_MIN_PAGES_PER_FMR)
2307 info.chunk_size = 1;
2309 ret = dev->iw_priv_qp_ops->iw_mr_fast_register(&iwqp->sc_qp, &info, true);
2316 i40iw_pr_err(" upost_send bad opcode = 0x%x\n",
2323 ib_wr = ib_wr->next;
2329 ukqp->ops.iw_qp_post_wr(ukqp);
2330 spin_unlock_irqrestore(&iwqp->lock, flags);
2336 * i40iw_post_recv - post receive wr for kernel application
2337 * @ibqp: ib qp pointer
2338 * @ib_wr: work request for receive
2339 * @bad_wr: bad wr caused an error
2341 static int i40iw_post_recv(struct ib_qp *ibqp,
2342 struct ib_recv_wr *ib_wr,
2343 struct ib_recv_wr **bad_wr)
2345 struct i40iw_qp *iwqp;
2346 struct i40iw_qp_uk *ukqp;
2347 struct i40iw_post_rq_info post_recv;
2348 struct i40iw_sge sg_list[I40IW_MAX_WQ_FRAGMENT_COUNT];
2349 enum i40iw_status_code ret = 0;
2350 unsigned long flags;
2353 iwqp = (struct i40iw_qp *)ibqp;
2354 ukqp = &iwqp->sc_qp.qp_uk;
2356 memset(&post_recv, 0, sizeof(post_recv));
2357 spin_lock_irqsave(&iwqp->lock, flags);
2359 post_recv.num_sges = ib_wr->num_sge;
2360 post_recv.wr_id = ib_wr->wr_id;
2361 i40iw_copy_sg_list(sg_list, ib_wr->sg_list, ib_wr->num_sge);
2362 post_recv.sg_list = sg_list;
2363 ret = ukqp->ops.iw_post_receive(ukqp, &post_recv);
2365 i40iw_pr_err(" post_recv err %d\n", ret);
2366 if (ret == I40IW_ERR_QP_TOOMANY_WRS_POSTED)
2373 ib_wr = ib_wr->next;
2376 spin_unlock_irqrestore(&iwqp->lock, flags);
2381 * i40iw_poll_cq - poll cq for completion (kernel apps)
2383 * @num_entries: number of entries to poll
2384 * @entry: wr of entry completed
2386 static int i40iw_poll_cq(struct ib_cq *ibcq,
2388 struct ib_wc *entry)
2390 struct i40iw_cq *iwcq;
2392 struct i40iw_cq_poll_info cq_poll_info;
2393 enum i40iw_status_code ret;
2394 struct i40iw_cq_uk *ukcq;
2395 struct i40iw_sc_qp *qp;
2396 struct i40iw_qp *iwqp;
2397 unsigned long flags;
2399 iwcq = (struct i40iw_cq *)ibcq;
2400 ukcq = &iwcq->sc_cq.cq_uk;
2402 spin_lock_irqsave(&iwcq->lock, flags);
2403 while (cqe_count < num_entries) {
2404 ret = ukcq->ops.iw_cq_poll_completion(ukcq, &cq_poll_info);
2405 if (ret == I40IW_ERR_QUEUE_EMPTY) {
2407 } else if (ret == I40IW_ERR_QUEUE_DESTROYED) {
2414 entry->wc_flags = 0;
2415 entry->wr_id = cq_poll_info.wr_id;
2416 if (cq_poll_info.error) {
2417 entry->status = IB_WC_WR_FLUSH_ERR;
2418 entry->vendor_err = cq_poll_info.major_err << 16 | cq_poll_info.minor_err;
2420 entry->status = IB_WC_SUCCESS;
2423 switch (cq_poll_info.op_type) {
2424 case I40IW_OP_TYPE_RDMA_WRITE:
2425 entry->opcode = IB_WC_RDMA_WRITE;
2427 case I40IW_OP_TYPE_RDMA_READ_INV_STAG:
2428 case I40IW_OP_TYPE_RDMA_READ:
2429 entry->opcode = IB_WC_RDMA_READ;
2431 case I40IW_OP_TYPE_SEND_SOL:
2432 case I40IW_OP_TYPE_SEND_SOL_INV:
2433 case I40IW_OP_TYPE_SEND_INV:
2434 case I40IW_OP_TYPE_SEND:
2435 entry->opcode = IB_WC_SEND;
2437 case I40IW_OP_TYPE_REC:
2438 entry->opcode = IB_WC_RECV;
2441 entry->opcode = IB_WC_RECV;
2445 entry->ex.imm_data = 0;
2446 qp = (struct i40iw_sc_qp *)cq_poll_info.qp_handle;
2447 entry->qp = (struct ib_qp *)qp->back_qp;
2448 entry->src_qp = cq_poll_info.qp_id;
2449 iwqp = (struct i40iw_qp *)qp->back_qp;
2450 if (iwqp->iwarp_state > I40IW_QP_STATE_RTS) {
2451 if (!I40IW_RING_MORE_WORK(qp->qp_uk.sq_ring))
2452 complete(&iwqp->sq_drained);
2453 if (!I40IW_RING_MORE_WORK(qp->qp_uk.rq_ring))
2454 complete(&iwqp->rq_drained);
2456 entry->byte_len = cq_poll_info.bytes_xfered;
2460 spin_unlock_irqrestore(&iwcq->lock, flags);
2465 * i40iw_req_notify_cq - arm cq kernel application
2467 * @notify_flags: notofication flags
2469 static int i40iw_req_notify_cq(struct ib_cq *ibcq,
2470 enum ib_cq_notify_flags notify_flags)
2472 struct i40iw_cq *iwcq;
2473 struct i40iw_cq_uk *ukcq;
2474 unsigned long flags;
2475 enum i40iw_completion_notify cq_notify = IW_CQ_COMPL_EVENT;
2477 iwcq = (struct i40iw_cq *)ibcq;
2478 ukcq = &iwcq->sc_cq.cq_uk;
2479 if (notify_flags == IB_CQ_SOLICITED)
2480 cq_notify = IW_CQ_COMPL_SOLICITED;
2481 spin_lock_irqsave(&iwcq->lock, flags);
2482 ukcq->ops.iw_cq_request_notification(ukcq, cq_notify);
2483 spin_unlock_irqrestore(&iwcq->lock, flags);
2488 * i40iw_port_immutable - return port's immutable data
2489 * @ibdev: ib dev struct
2490 * @port_num: port number
2491 * @immutable: immutable data for the port return
2493 static int i40iw_port_immutable(struct ib_device *ibdev, u8 port_num,
2494 struct ib_port_immutable *immutable)
2496 struct ib_port_attr attr;
2499 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
2501 err = ib_query_port(ibdev, port_num, &attr);
2506 immutable->pkey_tbl_len = attr.pkey_tbl_len;
2507 immutable->gid_tbl_len = attr.gid_tbl_len;
2512 static const char * const i40iw_hw_stat_names[] = {
2514 [I40IW_HW_STAT_INDEX_IP4RXDISCARD] = "ip4InDiscards",
2515 [I40IW_HW_STAT_INDEX_IP4RXTRUNC] = "ip4InTruncatedPkts",
2516 [I40IW_HW_STAT_INDEX_IP4TXNOROUTE] = "ip4OutNoRoutes",
2517 [I40IW_HW_STAT_INDEX_IP6RXDISCARD] = "ip6InDiscards",
2518 [I40IW_HW_STAT_INDEX_IP6RXTRUNC] = "ip6InTruncatedPkts",
2519 [I40IW_HW_STAT_INDEX_IP6TXNOROUTE] = "ip6OutNoRoutes",
2520 [I40IW_HW_STAT_INDEX_TCPRTXSEG] = "tcpRetransSegs",
2521 [I40IW_HW_STAT_INDEX_TCPRXOPTERR] = "tcpInOptErrors",
2522 [I40IW_HW_STAT_INDEX_TCPRXPROTOERR] = "tcpInProtoErrors",
2524 [I40IW_HW_STAT_INDEX_IP4RXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2526 [I40IW_HW_STAT_INDEX_IP4RXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2528 [I40IW_HW_STAT_INDEX_IP4RXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2530 [I40IW_HW_STAT_INDEX_IP4RXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2532 [I40IW_HW_STAT_INDEX_IP4TXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2534 [I40IW_HW_STAT_INDEX_IP4TXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2536 [I40IW_HW_STAT_INDEX_IP4TXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2538 [I40IW_HW_STAT_INDEX_IP4TXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2540 [I40IW_HW_STAT_INDEX_IP6RXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2542 [I40IW_HW_STAT_INDEX_IP6RXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2544 [I40IW_HW_STAT_INDEX_IP6RXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2546 [I40IW_HW_STAT_INDEX_IP6RXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2548 [I40IW_HW_STAT_INDEX_IP6TXOCTS + I40IW_HW_STAT_INDEX_MAX_32] =
2550 [I40IW_HW_STAT_INDEX_IP6TXPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2552 [I40IW_HW_STAT_INDEX_IP6TXFRAGS + I40IW_HW_STAT_INDEX_MAX_32] =
2554 [I40IW_HW_STAT_INDEX_IP6TXMCPKTS + I40IW_HW_STAT_INDEX_MAX_32] =
2556 [I40IW_HW_STAT_INDEX_TCPRXSEGS + I40IW_HW_STAT_INDEX_MAX_32] =
2558 [I40IW_HW_STAT_INDEX_TCPTXSEG + I40IW_HW_STAT_INDEX_MAX_32] =
2560 [I40IW_HW_STAT_INDEX_RDMARXRDS + I40IW_HW_STAT_INDEX_MAX_32] =
2562 [I40IW_HW_STAT_INDEX_RDMARXSNDS + I40IW_HW_STAT_INDEX_MAX_32] =
2564 [I40IW_HW_STAT_INDEX_RDMARXWRS + I40IW_HW_STAT_INDEX_MAX_32] =
2566 [I40IW_HW_STAT_INDEX_RDMATXRDS + I40IW_HW_STAT_INDEX_MAX_32] =
2568 [I40IW_HW_STAT_INDEX_RDMATXSNDS + I40IW_HW_STAT_INDEX_MAX_32] =
2570 [I40IW_HW_STAT_INDEX_RDMATXWRS + I40IW_HW_STAT_INDEX_MAX_32] =
2572 [I40IW_HW_STAT_INDEX_RDMAVBND + I40IW_HW_STAT_INDEX_MAX_32] =
2574 [I40IW_HW_STAT_INDEX_RDMAVINV + I40IW_HW_STAT_INDEX_MAX_32] =
2578 static void i40iw_get_dev_fw_str(struct ib_device *dev, char *str,
2581 u32 firmware_version = I40IW_FW_VERSION;
2583 snprintf(str, str_len, "%u.%u", firmware_version,
2584 (firmware_version & 0x000000ff));
2588 * i40iw_alloc_hw_stats - Allocate a hw stats structure
2589 * @ibdev: device pointer from stack
2590 * @port_num: port number
2592 static struct rdma_hw_stats *i40iw_alloc_hw_stats(struct ib_device *ibdev,
2595 struct i40iw_device *iwdev = to_iwdev(ibdev);
2596 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
2597 int num_counters = I40IW_HW_STAT_INDEX_MAX_32 +
2598 I40IW_HW_STAT_INDEX_MAX_64;
2599 unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN;
2601 BUILD_BUG_ON(ARRAY_SIZE(i40iw_hw_stat_names) !=
2602 (I40IW_HW_STAT_INDEX_MAX_32 +
2603 I40IW_HW_STAT_INDEX_MAX_64));
2606 * PFs get the default update lifespan, but VFs only update once
2611 return rdma_alloc_hw_stats_struct(i40iw_hw_stat_names, num_counters,
2616 * i40iw_get_hw_stats - Populates the rdma_hw_stats structure
2617 * @ibdev: device pointer from stack
2618 * @stats: stats pointer from stack
2619 * @port_num: port number
2620 * @index: which hw counter the stack is requesting we update
2622 static int i40iw_get_hw_stats(struct ib_device *ibdev,
2623 struct rdma_hw_stats *stats,
2624 u8 port_num, int index)
2626 struct i40iw_device *iwdev = to_iwdev(ibdev);
2627 struct i40iw_sc_dev *dev = &iwdev->sc_dev;
2628 struct i40iw_vsi_pestat *devstat = iwdev->vsi.pestat;
2629 struct i40iw_dev_hw_stats *hw_stats = &devstat->hw_stats;
2632 i40iw_hw_stats_read_all(devstat, &devstat->hw_stats);
2634 if (i40iw_vchnl_vf_get_pe_stats(dev, &devstat->hw_stats))
2638 memcpy(&stats->value[0], hw_stats, sizeof(*hw_stats));
2640 return stats->num_counters;
2644 * i40iw_query_gid - Query port GID
2645 * @ibdev: device pointer from stack
2646 * @port: port number
2647 * @index: Entry index
2650 static int i40iw_query_gid(struct ib_device *ibdev,
2655 struct i40iw_device *iwdev = to_iwdev(ibdev);
2657 memset(gid->raw, 0, sizeof(gid->raw));
2658 ether_addr_copy(gid->raw, iwdev->netdev->dev_addr);
2663 * i40iw_modify_port Modify port properties
2664 * @ibdev: device pointer from stack
2665 * @port: port number
2666 * @port_modify_mask: mask for port modifications
2667 * @props: port properties
2669 static int i40iw_modify_port(struct ib_device *ibdev,
2671 int port_modify_mask,
2672 struct ib_port_modify *props)
2678 * i40iw_query_pkey - Query partition key
2679 * @ibdev: device pointer from stack
2680 * @port: port number
2681 * @index: index of pkey
2682 * @pkey: pointer to store the pkey
2684 static int i40iw_query_pkey(struct ib_device *ibdev,
2694 * i40iw_create_ah - create address handle
2696 * @ah_attr: address handle attributes
2698 static struct ib_ah *i40iw_create_ah(struct ib_pd *ibpd,
2699 struct rdma_ah_attr *attr,
2700 struct ib_udata *udata)
2703 return ERR_PTR(-ENOSYS);
2707 * i40iw_destroy_ah - Destroy address handle
2708 * @ah: pointer to address handle
2710 static int i40iw_destroy_ah(struct ib_ah *ah)
2716 * i40iw_init_rdma_device - initialization of iwarp device
2717 * @iwdev: iwarp device
2719 static struct i40iw_ib_device *i40iw_init_rdma_device(struct i40iw_device *iwdev)
2721 struct i40iw_ib_device *iwibdev;
2722 struct net_device *netdev = iwdev->netdev;
2723 struct pci_dev *pcidev = (struct pci_dev *)iwdev->hw.dev_context;
2725 iwibdev = (struct i40iw_ib_device *)ib_alloc_device(sizeof(*iwibdev));
2727 i40iw_pr_err("iwdev == NULL\n");
2730 strlcpy(iwibdev->ibdev.name, "i40iw%d", IB_DEVICE_NAME_MAX);
2731 iwibdev->ibdev.owner = THIS_MODULE;
2732 iwdev->iwibdev = iwibdev;
2733 iwibdev->iwdev = iwdev;
2735 iwibdev->ibdev.node_type = RDMA_NODE_RNIC;
2736 ether_addr_copy((u8 *)&iwibdev->ibdev.node_guid, netdev->dev_addr);
2738 iwibdev->ibdev.uverbs_cmd_mask =
2739 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
2740 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
2741 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
2742 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
2743 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
2744 (1ull << IB_USER_VERBS_CMD_REG_MR) |
2745 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
2746 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
2747 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
2748 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
2749 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
2750 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
2751 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
2752 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
2753 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
2754 (1ull << IB_USER_VERBS_CMD_CREATE_AH) |
2755 (1ull << IB_USER_VERBS_CMD_DESTROY_AH) |
2756 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
2757 (1ull << IB_USER_VERBS_CMD_POST_RECV) |
2758 (1ull << IB_USER_VERBS_CMD_POST_SEND);
2759 iwibdev->ibdev.phys_port_cnt = 1;
2760 iwibdev->ibdev.num_comp_vectors = iwdev->ceqs_count;
2761 iwibdev->ibdev.dev.parent = &pcidev->dev;
2762 iwibdev->ibdev.query_port = i40iw_query_port;
2763 iwibdev->ibdev.modify_port = i40iw_modify_port;
2764 iwibdev->ibdev.query_pkey = i40iw_query_pkey;
2765 iwibdev->ibdev.query_gid = i40iw_query_gid;
2766 iwibdev->ibdev.alloc_ucontext = i40iw_alloc_ucontext;
2767 iwibdev->ibdev.dealloc_ucontext = i40iw_dealloc_ucontext;
2768 iwibdev->ibdev.mmap = i40iw_mmap;
2769 iwibdev->ibdev.alloc_pd = i40iw_alloc_pd;
2770 iwibdev->ibdev.dealloc_pd = i40iw_dealloc_pd;
2771 iwibdev->ibdev.create_qp = i40iw_create_qp;
2772 iwibdev->ibdev.modify_qp = i40iw_modify_qp;
2773 iwibdev->ibdev.query_qp = i40iw_query_qp;
2774 iwibdev->ibdev.destroy_qp = i40iw_destroy_qp;
2775 iwibdev->ibdev.create_cq = i40iw_create_cq;
2776 iwibdev->ibdev.destroy_cq = i40iw_destroy_cq;
2777 iwibdev->ibdev.get_dma_mr = i40iw_get_dma_mr;
2778 iwibdev->ibdev.reg_user_mr = i40iw_reg_user_mr;
2779 iwibdev->ibdev.dereg_mr = i40iw_dereg_mr;
2780 iwibdev->ibdev.alloc_hw_stats = i40iw_alloc_hw_stats;
2781 iwibdev->ibdev.get_hw_stats = i40iw_get_hw_stats;
2782 iwibdev->ibdev.query_device = i40iw_query_device;
2783 iwibdev->ibdev.create_ah = i40iw_create_ah;
2784 iwibdev->ibdev.destroy_ah = i40iw_destroy_ah;
2785 iwibdev->ibdev.drain_sq = i40iw_drain_sq;
2786 iwibdev->ibdev.drain_rq = i40iw_drain_rq;
2787 iwibdev->ibdev.alloc_mr = i40iw_alloc_mr;
2788 iwibdev->ibdev.map_mr_sg = i40iw_map_mr_sg;
2789 iwibdev->ibdev.iwcm = kzalloc(sizeof(*iwibdev->ibdev.iwcm), GFP_KERNEL);
2790 if (!iwibdev->ibdev.iwcm) {
2791 ib_dealloc_device(&iwibdev->ibdev);
2795 iwibdev->ibdev.iwcm->add_ref = i40iw_add_ref;
2796 iwibdev->ibdev.iwcm->rem_ref = i40iw_rem_ref;
2797 iwibdev->ibdev.iwcm->get_qp = i40iw_get_qp;
2798 iwibdev->ibdev.iwcm->connect = i40iw_connect;
2799 iwibdev->ibdev.iwcm->accept = i40iw_accept;
2800 iwibdev->ibdev.iwcm->reject = i40iw_reject;
2801 iwibdev->ibdev.iwcm->create_listen = i40iw_create_listen;
2802 iwibdev->ibdev.iwcm->destroy_listen = i40iw_destroy_listen;
2803 memcpy(iwibdev->ibdev.iwcm->ifname, netdev->name,
2804 sizeof(iwibdev->ibdev.iwcm->ifname));
2805 iwibdev->ibdev.get_port_immutable = i40iw_port_immutable;
2806 iwibdev->ibdev.get_dev_fw_str = i40iw_get_dev_fw_str;
2807 iwibdev->ibdev.poll_cq = i40iw_poll_cq;
2808 iwibdev->ibdev.req_notify_cq = i40iw_req_notify_cq;
2809 iwibdev->ibdev.post_send = i40iw_post_send;
2810 iwibdev->ibdev.post_recv = i40iw_post_recv;
2816 * i40iw_port_ibevent - indicate port event
2817 * @iwdev: iwarp device
2819 void i40iw_port_ibevent(struct i40iw_device *iwdev)
2821 struct i40iw_ib_device *iwibdev = iwdev->iwibdev;
2822 struct ib_event event;
2824 event.device = &iwibdev->ibdev;
2825 event.element.port_num = 1;
2826 event.event = iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
2827 ib_dispatch_event(&event);
2831 * i40iw_unregister_rdma_device - unregister of iwarp from IB
2832 * @iwibdev: rdma device ptr
2834 static void i40iw_unregister_rdma_device(struct i40iw_ib_device *iwibdev)
2838 for (i = 0; i < ARRAY_SIZE(i40iw_dev_attributes); ++i)
2839 device_remove_file(&iwibdev->ibdev.dev,
2840 i40iw_dev_attributes[i]);
2841 ib_unregister_device(&iwibdev->ibdev);
2845 * i40iw_destroy_rdma_device - destroy rdma device and free resources
2846 * @iwibdev: IB device ptr
2848 void i40iw_destroy_rdma_device(struct i40iw_ib_device *iwibdev)
2853 i40iw_unregister_rdma_device(iwibdev);
2854 kfree(iwibdev->ibdev.iwcm);
2855 iwibdev->ibdev.iwcm = NULL;
2856 wait_event_timeout(iwibdev->iwdev->close_wq,
2857 !atomic64_read(&iwibdev->iwdev->use_count),
2858 I40IW_EVENT_TIMEOUT);
2859 ib_dealloc_device(&iwibdev->ibdev);
2863 * i40iw_register_rdma_device - register iwarp device to IB
2864 * @iwdev: iwarp device
2866 int i40iw_register_rdma_device(struct i40iw_device *iwdev)
2869 struct i40iw_ib_device *iwibdev;
2871 iwdev->iwibdev = i40iw_init_rdma_device(iwdev);
2872 if (!iwdev->iwibdev)
2874 iwibdev = iwdev->iwibdev;
2876 ret = ib_register_device(&iwibdev->ibdev, NULL);
2880 for (i = 0; i < ARRAY_SIZE(i40iw_dev_attributes); ++i) {
2882 device_create_file(&iwibdev->ibdev.dev,
2883 i40iw_dev_attributes[i]);
2887 device_remove_file(&iwibdev->ibdev.dev, i40iw_dev_attributes[i]);
2889 ib_unregister_device(&iwibdev->ibdev);
2895 kfree(iwdev->iwibdev->ibdev.iwcm);
2896 iwdev->iwibdev->ibdev.iwcm = NULL;
2897 ib_dealloc_device(&iwdev->iwibdev->ibdev);