2 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 #include <linux/module.h>
33 #include <linux/moduleparam.h>
34 #include <linux/device.h>
35 #include <linux/netdevice.h>
36 #include <linux/etherdevice.h>
37 #include <linux/delay.h>
38 #include <linux/errno.h>
39 #include <linux/list.h>
40 #include <linux/sched.h>
41 #include <linux/spinlock.h>
42 #include <linux/ethtool.h>
43 #include <linux/rtnetlink.h>
44 #include <linux/inetdevice.h>
45 #include <linux/slab.h>
49 #include <asm/byteorder.h>
51 #include <rdma/iw_cm.h>
52 #include <rdma/ib_verbs.h>
53 #include <rdma/ib_smi.h>
54 #include <rdma/ib_umem.h>
55 #include <rdma/ib_user_verbs.h>
59 #include "iwch_provider.h"
61 #include <rdma/cxgb3-abi.h>
64 static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
65 struct ib_ah_attr *ah_attr,
66 struct ib_udata *udata)
68 return ERR_PTR(-ENOSYS);
71 static int iwch_ah_destroy(struct ib_ah *ah)
76 static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
81 static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
86 static int iwch_process_mad(struct ib_device *ibdev,
89 const struct ib_wc *in_wc,
90 const struct ib_grh *in_grh,
91 const struct ib_mad_hdr *in_mad,
93 struct ib_mad_hdr *out_mad,
95 u16 *out_mad_pkey_index)
100 static int iwch_dealloc_ucontext(struct ib_ucontext *context)
102 struct iwch_dev *rhp = to_iwch_dev(context->device);
103 struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
104 struct iwch_mm_entry *mm, *tmp;
106 PDBG("%s context %p\n", __func__, context);
107 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
109 cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
114 static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
115 struct ib_udata *udata)
117 struct iwch_ucontext *context;
118 struct iwch_dev *rhp = to_iwch_dev(ibdev);
120 PDBG("%s ibdev %p\n", __func__, ibdev);
121 context = kzalloc(sizeof(*context), GFP_KERNEL);
123 return ERR_PTR(-ENOMEM);
124 cxio_init_ucontext(&rhp->rdev, &context->uctx);
125 INIT_LIST_HEAD(&context->mmaps);
126 spin_lock_init(&context->mmap_lock);
127 return &context->ibucontext;
130 static int iwch_destroy_cq(struct ib_cq *ib_cq)
134 PDBG("%s ib_cq %p\n", __func__, ib_cq);
135 chp = to_iwch_cq(ib_cq);
137 remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
138 atomic_dec(&chp->refcnt);
139 wait_event(chp->wait, !atomic_read(&chp->refcnt));
141 cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
146 static struct ib_cq *iwch_create_cq(struct ib_device *ibdev,
147 const struct ib_cq_init_attr *attr,
148 struct ib_ucontext *ib_context,
149 struct ib_udata *udata)
151 int entries = attr->cqe;
152 struct iwch_dev *rhp;
154 struct iwch_create_cq_resp uresp;
155 struct iwch_create_cq_req ureq;
156 struct iwch_ucontext *ucontext = NULL;
160 PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
162 return ERR_PTR(-EINVAL);
164 rhp = to_iwch_dev(ibdev);
165 chp = kzalloc(sizeof(*chp), GFP_KERNEL);
167 return ERR_PTR(-ENOMEM);
170 ucontext = to_iwch_ucontext(ib_context);
171 if (!t3a_device(rhp)) {
172 if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) {
174 return ERR_PTR(-EFAULT);
176 chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr;
180 if (t3a_device(rhp)) {
183 * T3A: Add some fluff to handle extra CQEs inserted
184 * for various errors.
185 * Additional CQE possibilities:
187 * incoming RDMA WRITE Failures
188 * incoming RDMA READ REQUEST FAILUREs
189 * NOTE: We cannot ensure the CQ won't overflow.
193 entries = roundup_pow_of_two(entries);
194 chp->cq.size_log2 = ilog2(entries);
196 if (cxio_create_cq(&rhp->rdev, &chp->cq, !ucontext)) {
198 return ERR_PTR(-ENOMEM);
201 chp->ibcq.cqe = 1 << chp->cq.size_log2;
202 spin_lock_init(&chp->lock);
203 spin_lock_init(&chp->comp_handler_lock);
204 atomic_set(&chp->refcnt, 1);
205 init_waitqueue_head(&chp->wait);
206 if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) {
207 cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
209 return ERR_PTR(-ENOMEM);
213 struct iwch_mm_entry *mm;
215 mm = kmalloc(sizeof *mm, GFP_KERNEL);
217 iwch_destroy_cq(&chp->ibcq);
218 return ERR_PTR(-ENOMEM);
220 uresp.cqid = chp->cq.cqid;
221 uresp.size_log2 = chp->cq.size_log2;
222 spin_lock(&ucontext->mmap_lock);
223 uresp.key = ucontext->key;
224 ucontext->key += PAGE_SIZE;
225 spin_unlock(&ucontext->mmap_lock);
227 mm->addr = virt_to_phys(chp->cq.queue);
228 if (udata->outlen < sizeof uresp) {
230 printk(KERN_WARNING MOD "Warning - "
231 "downlevel libcxgb3 (non-fatal).\n");
232 mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
233 sizeof(struct t3_cqe));
234 resplen = sizeof(struct iwch_create_cq_resp_v0);
236 mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) *
237 sizeof(struct t3_cqe));
238 uresp.memsize = mm->len;
240 resplen = sizeof uresp;
242 if (ib_copy_to_udata(udata, &uresp, resplen)) {
244 iwch_destroy_cq(&chp->ibcq);
245 return ERR_PTR(-EFAULT);
247 insert_mmap(ucontext, mm);
249 PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n",
250 chp->cq.cqid, chp, (1 << chp->cq.size_log2),
251 (unsigned long long) chp->cq.dma_addr);
255 static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
258 struct iwch_cq *chp = to_iwch_cq(cq);
259 struct t3_cq oldcq, newcq;
262 PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe);
264 /* We don't downsize... */
268 /* create new t3_cq with new size */
269 cqe = roundup_pow_of_two(cqe+1);
270 newcq.size_log2 = ilog2(cqe);
272 /* Dont allow resize to less than the current wce count */
273 if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) {
277 /* Quiesce all QPs using this CQ */
278 ret = iwch_quiesce_qps(chp);
283 ret = cxio_create_cq(&chp->rhp->rdev, &newcq);
289 memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) *
290 sizeof(struct t3_cqe));
292 /* old iwch_qp gets new t3_cq but keeps old cqid */
295 chp->cq.cqid = oldcq.cqid;
297 /* resize new t3_cq to update the HW context */
298 ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq);
303 chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1;
305 /* destroy old t3_cq */
306 oldcq.cqid = newcq.cqid;
307 ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq);
309 printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
313 /* add user hooks here */
316 ret = iwch_resume_qps(chp);
323 static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
325 struct iwch_dev *rhp;
327 enum t3_cq_opcode cq_op;
332 chp = to_iwch_cq(ibcq);
334 if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
338 if (chp->user_rptr_addr) {
339 if (get_user(rptr, chp->user_rptr_addr))
341 spin_lock_irqsave(&chp->lock, flag);
344 spin_lock_irqsave(&chp->lock, flag);
345 PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr);
346 err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
347 spin_unlock_irqrestore(&chp->lock, flag);
349 printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
351 if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
356 static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
358 int len = vma->vm_end - vma->vm_start;
359 u32 key = vma->vm_pgoff << PAGE_SHIFT;
360 struct cxio_rdev *rdev_p;
362 struct iwch_mm_entry *mm;
363 struct iwch_ucontext *ucontext;
366 PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
369 if (vma->vm_start & (PAGE_SIZE-1)) {
373 rdev_p = &(to_iwch_dev(context->device)->rdev);
374 ucontext = to_iwch_ucontext(context);
376 mm = remove_mmap(ucontext, key, len);
382 if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
383 (addr < (rdev_p->rnic_info.udbell_physbase +
384 rdev_p->rnic_info.udbell_len))) {
387 * Map T3 DB register.
389 if (vma->vm_flags & VM_READ) {
393 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
394 vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
395 vma->vm_flags &= ~VM_MAYREAD;
396 ret = io_remap_pfn_range(vma, vma->vm_start,
398 len, vma->vm_page_prot);
402 * Map WQ or CQ contig dma memory...
404 ret = remap_pfn_range(vma, vma->vm_start,
406 len, vma->vm_page_prot);
412 static int iwch_deallocate_pd(struct ib_pd *pd)
414 struct iwch_dev *rhp;
417 php = to_iwch_pd(pd);
419 PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
420 cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
425 static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
426 struct ib_ucontext *context,
427 struct ib_udata *udata)
431 struct iwch_dev *rhp;
433 PDBG("%s ibdev %p\n", __func__, ibdev);
434 rhp = (struct iwch_dev *) ibdev;
435 pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
437 return ERR_PTR(-EINVAL);
438 php = kzalloc(sizeof(*php), GFP_KERNEL);
440 cxio_hal_put_pdid(rhp->rdev.rscp, pdid);
441 return ERR_PTR(-ENOMEM);
446 if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
447 iwch_deallocate_pd(&php->ibpd);
448 return ERR_PTR(-EFAULT);
451 PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
455 static int iwch_dereg_mr(struct ib_mr *ib_mr)
457 struct iwch_dev *rhp;
461 PDBG("%s ib_mr %p\n", __func__, ib_mr);
463 mhp = to_iwch_mr(ib_mr);
466 mmid = mhp->attr.stag >> 8;
467 cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
470 remove_handle(rhp, &rhp->mmidr, mmid);
472 kfree((void *) (unsigned long) mhp->kva);
474 ib_umem_release(mhp->umem);
475 PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
480 static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
482 const u64 total_size = 0xffffffff;
483 const u64 mask = (total_size + PAGE_SIZE - 1) & PAGE_MASK;
484 struct iwch_pd *php = to_iwch_pd(pd);
485 struct iwch_dev *rhp = php->rhp;
488 int shift = 26, npages, ret, i;
490 PDBG("%s ib_pd %p\n", __func__, pd);
493 * T3 only supports 32 bits of size.
495 if (sizeof(phys_addr_t) > 4) {
496 pr_warn_once(MOD "Cannot support dma_mrs on this platform.\n");
497 return ERR_PTR(-ENOTSUPP);
500 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
502 return ERR_PTR(-ENOMEM);
506 npages = (total_size + (1ULL << shift) - 1) >> shift;
512 page_list = kmalloc_array(npages, sizeof(u64), GFP_KERNEL);
518 for (i = 0; i < npages; i++)
519 page_list[i] = cpu_to_be64((u64)i << shift);
521 PDBG("%s mask 0x%llx shift %d len %lld pbl_size %d\n",
522 __func__, mask, shift, total_size, npages);
524 ret = iwch_alloc_pbl(mhp, npages);
530 ret = iwch_write_pbl(mhp, page_list, npages, 0);
535 mhp->attr.pdid = php->pdid;
538 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
539 mhp->attr.va_fbo = 0;
540 mhp->attr.page_size = shift - 12;
542 mhp->attr.len = (u32) total_size;
543 mhp->attr.pbl_size = npages;
544 ret = iwch_register_mem(rhp, php, mhp, shift);
558 static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
559 u64 virt, int acc, struct ib_udata *udata)
565 struct iwch_dev *rhp;
568 struct iwch_reg_user_mr_resp uresp;
569 struct scatterlist *sg;
570 PDBG("%s ib_pd %p\n", __func__, pd);
572 php = to_iwch_pd(pd);
574 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
576 return ERR_PTR(-ENOMEM);
580 mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
581 if (IS_ERR(mhp->umem)) {
582 err = PTR_ERR(mhp->umem);
587 shift = ffs(mhp->umem->page_size) - 1;
591 err = iwch_alloc_pbl(mhp, n);
595 pages = (__be64 *) __get_free_page(GFP_KERNEL);
603 for_each_sg(mhp->umem->sg_head.sgl, sg, mhp->umem->nmap, entry) {
604 len = sg_dma_len(sg) >> shift;
605 for (k = 0; k < len; ++k) {
606 pages[i++] = cpu_to_be64(sg_dma_address(sg) +
607 mhp->umem->page_size * k);
608 if (i == PAGE_SIZE / sizeof *pages) {
609 err = iwch_write_pbl(mhp, pages, i, n);
619 err = iwch_write_pbl(mhp, pages, i, n);
622 free_page((unsigned long) pages);
626 mhp->attr.pdid = php->pdid;
628 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
629 mhp->attr.va_fbo = virt;
630 mhp->attr.page_size = shift - 12;
631 mhp->attr.len = (u32) length;
633 err = iwch_register_mem(rhp, php, mhp, shift);
637 if (udata && !t3a_device(rhp)) {
638 uresp.pbl_addr = (mhp->attr.pbl_addr -
639 rhp->rdev.rnic_info.pbl_base) >> 3;
640 PDBG("%s user resp pbl_addr 0x%x\n", __func__,
643 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
644 iwch_dereg_mr(&mhp->ibmr);
656 ib_umem_release(mhp->umem);
661 static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
662 struct ib_udata *udata)
664 struct iwch_dev *rhp;
671 if (type != IB_MW_TYPE_1)
672 return ERR_PTR(-EINVAL);
674 php = to_iwch_pd(pd);
676 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
678 return ERR_PTR(-ENOMEM);
679 ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
685 mhp->attr.pdid = php->pdid;
686 mhp->attr.type = TPT_MW;
687 mhp->attr.stag = stag;
689 mhp->ibmw.rkey = stag;
690 if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) {
691 cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
693 return ERR_PTR(-ENOMEM);
695 PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
699 static int iwch_dealloc_mw(struct ib_mw *mw)
701 struct iwch_dev *rhp;
705 mhp = to_iwch_mw(mw);
707 mmid = (mw->rkey) >> 8;
708 cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
709 remove_handle(rhp, &rhp->mmidr, mmid);
710 PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
715 static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd,
716 enum ib_mr_type mr_type,
719 struct iwch_dev *rhp;
726 if (mr_type != IB_MR_TYPE_MEM_REG ||
727 max_num_sg > T3_MAX_FASTREG_DEPTH)
728 return ERR_PTR(-EINVAL);
730 php = to_iwch_pd(pd);
732 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
736 mhp->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL);
743 ret = iwch_alloc_pbl(mhp, max_num_sg);
746 mhp->attr.pbl_size = max_num_sg;
747 ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
748 mhp->attr.pbl_size, mhp->attr.pbl_addr);
751 mhp->attr.pdid = php->pdid;
752 mhp->attr.type = TPT_NON_SHARED_MR;
753 mhp->attr.stag = stag;
756 mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
757 if (insert_handle(rhp, &rhp->mmidr, mhp, mmid))
760 PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
763 cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size,
775 static int iwch_set_page(struct ib_mr *ibmr, u64 addr)
777 struct iwch_mr *mhp = to_iwch_mr(ibmr);
779 if (unlikely(mhp->npages == mhp->attr.pbl_size))
782 mhp->pages[mhp->npages++] = addr;
787 static int iwch_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
788 int sg_nents, unsigned int *sg_offset)
790 struct iwch_mr *mhp = to_iwch_mr(ibmr);
794 return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, iwch_set_page);
797 static int iwch_destroy_qp(struct ib_qp *ib_qp)
799 struct iwch_dev *rhp;
801 struct iwch_qp_attributes attrs;
802 struct iwch_ucontext *ucontext;
804 qhp = to_iwch_qp(ib_qp);
807 attrs.next_state = IWCH_QP_STATE_ERROR;
808 iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
809 wait_event(qhp->wait, !qhp->ep);
811 remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid);
813 atomic_dec(&qhp->refcnt);
814 wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
816 ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context)
818 cxio_destroy_qp(&rhp->rdev, &qhp->wq,
819 ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
821 PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
822 ib_qp, qhp->wq.qpid, qhp);
827 static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
828 struct ib_qp_init_attr *attrs,
829 struct ib_udata *udata)
831 struct iwch_dev *rhp;
834 struct iwch_cq *schp;
835 struct iwch_cq *rchp;
836 struct iwch_create_qp_resp uresp;
837 int wqsize, sqsize, rqsize;
838 struct iwch_ucontext *ucontext;
840 PDBG("%s ib_pd %p\n", __func__, pd);
841 if (attrs->qp_type != IB_QPT_RC)
842 return ERR_PTR(-EINVAL);
843 php = to_iwch_pd(pd);
845 schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
846 rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
848 return ERR_PTR(-EINVAL);
850 /* The RQT size must be # of entries + 1 rounded up to a power of two */
851 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
852 if (rqsize == attrs->cap.max_recv_wr)
853 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
855 /* T3 doesn't support RQT depth < 16 */
859 if (rqsize > T3_MAX_RQ_SIZE)
860 return ERR_PTR(-EINVAL);
862 if (attrs->cap.max_inline_data > T3_MAX_INLINE)
863 return ERR_PTR(-EINVAL);
866 * NOTE: The SQ and total WQ sizes don't need to be
867 * a power of two. However, all the code assumes
868 * they are. EG: Q_FREECNT() and friends.
870 sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
871 wqsize = roundup_pow_of_two(rqsize + sqsize);
874 * Kernel users need more wq space for fastreg WRs which can take
877 ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
878 if (!ucontext && wqsize < (rqsize + (2 * sqsize)))
879 wqsize = roundup_pow_of_two(rqsize +
880 roundup_pow_of_two(attrs->cap.max_send_wr * 2));
881 PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
882 wqsize, sqsize, rqsize);
883 qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
885 return ERR_PTR(-ENOMEM);
886 qhp->wq.size_log2 = ilog2(wqsize);
887 qhp->wq.rq_size_log2 = ilog2(rqsize);
888 qhp->wq.sq_size_log2 = ilog2(sqsize);
889 if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
890 ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
892 return ERR_PTR(-ENOMEM);
895 attrs->cap.max_recv_wr = rqsize - 1;
896 attrs->cap.max_send_wr = sqsize;
897 attrs->cap.max_inline_data = T3_MAX_INLINE;
900 qhp->attr.pd = php->pdid;
901 qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
902 qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
903 qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
904 qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
905 qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
906 qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
907 qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
908 qhp->attr.state = IWCH_QP_STATE_IDLE;
909 qhp->attr.next_state = IWCH_QP_STATE_IDLE;
912 * XXX - These don't get passed in from the openib user
913 * at create time. The CM sets them via a QP modify.
914 * Need to fix... I think the CM should
916 qhp->attr.enable_rdma_read = 1;
917 qhp->attr.enable_rdma_write = 1;
918 qhp->attr.enable_bind = 1;
919 qhp->attr.max_ord = 1;
920 qhp->attr.max_ird = 1;
922 spin_lock_init(&qhp->lock);
923 init_waitqueue_head(&qhp->wait);
924 atomic_set(&qhp->refcnt, 1);
926 if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) {
927 cxio_destroy_qp(&rhp->rdev, &qhp->wq,
928 ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
930 return ERR_PTR(-ENOMEM);
935 struct iwch_mm_entry *mm1, *mm2;
937 mm1 = kmalloc(sizeof *mm1, GFP_KERNEL);
939 iwch_destroy_qp(&qhp->ibqp);
940 return ERR_PTR(-ENOMEM);
943 mm2 = kmalloc(sizeof *mm2, GFP_KERNEL);
946 iwch_destroy_qp(&qhp->ibqp);
947 return ERR_PTR(-ENOMEM);
950 uresp.qpid = qhp->wq.qpid;
951 uresp.size_log2 = qhp->wq.size_log2;
952 uresp.sq_size_log2 = qhp->wq.sq_size_log2;
953 uresp.rq_size_log2 = qhp->wq.rq_size_log2;
954 spin_lock(&ucontext->mmap_lock);
955 uresp.key = ucontext->key;
956 ucontext->key += PAGE_SIZE;
957 uresp.db_key = ucontext->key;
958 ucontext->key += PAGE_SIZE;
959 spin_unlock(&ucontext->mmap_lock);
960 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
963 iwch_destroy_qp(&qhp->ibqp);
964 return ERR_PTR(-EFAULT);
966 mm1->key = uresp.key;
967 mm1->addr = virt_to_phys(qhp->wq.queue);
968 mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr));
969 insert_mmap(ucontext, mm1);
970 mm2->key = uresp.db_key;
971 mm2->addr = qhp->wq.udb & PAGE_MASK;
972 mm2->len = PAGE_SIZE;
973 insert_mmap(ucontext, mm2);
975 qhp->ibqp.qp_num = qhp->wq.qpid;
976 init_timer(&(qhp->timer));
977 PDBG("%s sq_num_entries %d, rq_num_entries %d "
978 "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n",
979 __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
980 qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
981 1 << qhp->wq.size_log2, qhp->wq.rq_addr);
985 static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
986 int attr_mask, struct ib_udata *udata)
988 struct iwch_dev *rhp;
990 enum iwch_qp_attr_mask mask = 0;
991 struct iwch_qp_attributes attrs;
993 PDBG("%s ib_qp %p\n", __func__, ibqp);
995 /* iwarp does not support the RTR state */
996 if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
997 attr_mask &= ~IB_QP_STATE;
999 /* Make sure we still have something left to do */
1003 memset(&attrs, 0, sizeof attrs);
1004 qhp = to_iwch_qp(ibqp);
1007 attrs.next_state = iwch_convert_state(attr->qp_state);
1008 attrs.enable_rdma_read = (attr->qp_access_flags &
1009 IB_ACCESS_REMOTE_READ) ? 1 : 0;
1010 attrs.enable_rdma_write = (attr->qp_access_flags &
1011 IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
1012 attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
1015 mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
1016 mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
1017 (IWCH_QP_ATTR_ENABLE_RDMA_READ |
1018 IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
1019 IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
1021 return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
1024 void iwch_qp_add_ref(struct ib_qp *qp)
1026 PDBG("%s ib_qp %p\n", __func__, qp);
1027 atomic_inc(&(to_iwch_qp(qp)->refcnt));
1030 void iwch_qp_rem_ref(struct ib_qp *qp)
1032 PDBG("%s ib_qp %p\n", __func__, qp);
1033 if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
1034 wake_up(&(to_iwch_qp(qp)->wait));
1037 static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
1039 PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
1040 return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
1044 static int iwch_query_pkey(struct ib_device *ibdev,
1045 u8 port, u16 index, u16 * pkey)
1047 PDBG("%s ibdev %p\n", __func__, ibdev);
1052 static int iwch_query_gid(struct ib_device *ibdev, u8 port,
1053 int index, union ib_gid *gid)
1055 struct iwch_dev *dev;
1057 PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
1058 __func__, ibdev, port, index, gid);
1059 dev = to_iwch_dev(ibdev);
1060 BUG_ON(port == 0 || port > 2);
1061 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
1062 memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
1066 static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev)
1068 struct ethtool_drvinfo info;
1069 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1071 unsigned fw_maj, fw_min, fw_mic;
1073 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1075 next = info.fw_version + 1;
1076 cp = strsep(&next, ".");
1077 sscanf(cp, "%i", &fw_maj);
1078 cp = strsep(&next, ".");
1079 sscanf(cp, "%i", &fw_min);
1080 cp = strsep(&next, ".");
1081 sscanf(cp, "%i", &fw_mic);
1083 return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) |
1087 static int iwch_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
1088 struct ib_udata *uhw)
1091 struct iwch_dev *dev;
1093 PDBG("%s ibdev %p\n", __func__, ibdev);
1095 if (uhw->inlen || uhw->outlen)
1098 dev = to_iwch_dev(ibdev);
1099 memset(props, 0, sizeof *props);
1100 memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1101 props->hw_ver = dev->rdev.t3cdev_p->type;
1102 props->fw_ver = fw_vers_string_to_u64(dev);
1103 props->device_cap_flags = dev->device_cap_flags;
1104 props->page_size_cap = dev->attr.mem_pgsizes_bitmask;
1105 props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
1106 props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
1107 props->max_mr_size = dev->attr.max_mr_size;
1108 props->max_qp = dev->attr.max_qps;
1109 props->max_qp_wr = dev->attr.max_wrs;
1110 props->max_sge = dev->attr.max_sge_per_wr;
1111 props->max_sge_rd = 1;
1112 props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
1113 props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
1114 props->max_cq = dev->attr.max_cqs;
1115 props->max_cqe = dev->attr.max_cqes_per_cq;
1116 props->max_mr = dev->attr.max_mem_regs;
1117 props->max_pd = dev->attr.max_pds;
1118 props->local_ca_ack_delay = 0;
1119 props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH;
1124 static int iwch_query_port(struct ib_device *ibdev,
1125 u8 port, struct ib_port_attr *props)
1127 struct iwch_dev *dev;
1128 struct net_device *netdev;
1129 struct in_device *inetdev;
1131 PDBG("%s ibdev %p\n", __func__, ibdev);
1133 dev = to_iwch_dev(ibdev);
1134 netdev = dev->rdev.port_info.lldevs[port-1];
1136 memset(props, 0, sizeof(struct ib_port_attr));
1137 props->max_mtu = IB_MTU_4096;
1138 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
1140 if (!netif_carrier_ok(netdev))
1141 props->state = IB_PORT_DOWN;
1143 inetdev = in_dev_get(netdev);
1145 if (inetdev->ifa_list)
1146 props->state = IB_PORT_ACTIVE;
1148 props->state = IB_PORT_INIT;
1149 in_dev_put(inetdev);
1151 props->state = IB_PORT_INIT;
1154 props->port_cap_flags =
1156 IB_PORT_SNMP_TUNNEL_SUP |
1157 IB_PORT_REINIT_SUP |
1158 IB_PORT_DEVICE_MGMT_SUP |
1159 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
1160 props->gid_tbl_len = 1;
1161 props->pkey_tbl_len = 1;
1162 props->active_width = 2;
1163 props->active_speed = IB_SPEED_DDR;
1164 props->max_msg_sz = -1;
1169 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
1172 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1174 PDBG("%s dev 0x%p\n", __func__, dev);
1175 return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
1178 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
1181 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1183 struct ethtool_drvinfo info;
1184 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1186 PDBG("%s dev 0x%p\n", __func__, dev);
1187 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1188 return sprintf(buf, "%s\n", info.driver);
1191 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
1194 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1196 PDBG("%s dev 0x%p\n", __func__, dev);
1197 return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
1198 iwch_dev->rdev.rnic_info.pdev->device);
1230 static const char * const names[] = {
1231 [IPINRECEIVES] = "ipInReceives",
1232 [IPINHDRERRORS] = "ipInHdrErrors",
1233 [IPINADDRERRORS] = "ipInAddrErrors",
1234 [IPINUNKNOWNPROTOS] = "ipInUnknownProtos",
1235 [IPINDISCARDS] = "ipInDiscards",
1236 [IPINDELIVERS] = "ipInDelivers",
1237 [IPOUTREQUESTS] = "ipOutRequests",
1238 [IPOUTDISCARDS] = "ipOutDiscards",
1239 [IPOUTNOROUTES] = "ipOutNoRoutes",
1240 [IPREASMTIMEOUT] = "ipReasmTimeout",
1241 [IPREASMREQDS] = "ipReasmReqds",
1242 [IPREASMOKS] = "ipReasmOKs",
1243 [IPREASMFAILS] = "ipReasmFails",
1244 [TCPACTIVEOPENS] = "tcpActiveOpens",
1245 [TCPPASSIVEOPENS] = "tcpPassiveOpens",
1246 [TCPATTEMPTFAILS] = "tcpAttemptFails",
1247 [TCPESTABRESETS] = "tcpEstabResets",
1248 [TCPCURRESTAB] = "tcpCurrEstab",
1249 [TCPINSEGS] = "tcpInSegs",
1250 [TCPOUTSEGS] = "tcpOutSegs",
1251 [TCPRETRANSSEGS] = "tcpRetransSegs",
1252 [TCPINERRS] = "tcpInErrs",
1253 [TCPOUTRSTS] = "tcpOutRsts",
1254 [TCPRTOMIN] = "tcpRtoMin",
1255 [TCPRTOMAX] = "tcpRtoMax",
1258 static struct rdma_hw_stats *iwch_alloc_stats(struct ib_device *ibdev,
1261 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
1263 /* Our driver only supports device level stats */
1267 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
1268 RDMA_HW_STATS_DEFAULT_LIFESPAN);
1271 static int iwch_get_mib(struct ib_device *ibdev, struct rdma_hw_stats *stats,
1274 struct iwch_dev *dev;
1275 struct tp_mib_stats m;
1278 if (port != 0 || !stats)
1281 PDBG("%s ibdev %p\n", __func__, ibdev);
1282 dev = to_iwch_dev(ibdev);
1283 ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m);
1287 stats->value[IPINRECEIVES] = ((u64)m.ipInReceive_hi << 32) + m.ipInReceive_lo;
1288 stats->value[IPINHDRERRORS] = ((u64)m.ipInHdrErrors_hi << 32) + m.ipInHdrErrors_lo;
1289 stats->value[IPINADDRERRORS] = ((u64)m.ipInAddrErrors_hi << 32) + m.ipInAddrErrors_lo;
1290 stats->value[IPINUNKNOWNPROTOS] = ((u64)m.ipInUnknownProtos_hi << 32) + m.ipInUnknownProtos_lo;
1291 stats->value[IPINDISCARDS] = ((u64)m.ipInDiscards_hi << 32) + m.ipInDiscards_lo;
1292 stats->value[IPINDELIVERS] = ((u64)m.ipInDelivers_hi << 32) + m.ipInDelivers_lo;
1293 stats->value[IPOUTREQUESTS] = ((u64)m.ipOutRequests_hi << 32) + m.ipOutRequests_lo;
1294 stats->value[IPOUTDISCARDS] = ((u64)m.ipOutDiscards_hi << 32) + m.ipOutDiscards_lo;
1295 stats->value[IPOUTNOROUTES] = ((u64)m.ipOutNoRoutes_hi << 32) + m.ipOutNoRoutes_lo;
1296 stats->value[IPREASMTIMEOUT] = m.ipReasmTimeout;
1297 stats->value[IPREASMREQDS] = m.ipReasmReqds;
1298 stats->value[IPREASMOKS] = m.ipReasmOKs;
1299 stats->value[IPREASMFAILS] = m.ipReasmFails;
1300 stats->value[TCPACTIVEOPENS] = m.tcpActiveOpens;
1301 stats->value[TCPPASSIVEOPENS] = m.tcpPassiveOpens;
1302 stats->value[TCPATTEMPTFAILS] = m.tcpAttemptFails;
1303 stats->value[TCPESTABRESETS] = m.tcpEstabResets;
1304 stats->value[TCPCURRESTAB] = m.tcpOutRsts;
1305 stats->value[TCPINSEGS] = m.tcpCurrEstab;
1306 stats->value[TCPOUTSEGS] = ((u64)m.tcpInSegs_hi << 32) + m.tcpInSegs_lo;
1307 stats->value[TCPRETRANSSEGS] = ((u64)m.tcpOutSegs_hi << 32) + m.tcpOutSegs_lo;
1308 stats->value[TCPINERRS] = ((u64)m.tcpRetransSeg_hi << 32) + m.tcpRetransSeg_lo,
1309 stats->value[TCPOUTRSTS] = ((u64)m.tcpInErrs_hi << 32) + m.tcpInErrs_lo;
1310 stats->value[TCPRTOMIN] = m.tcpRtoMin;
1311 stats->value[TCPRTOMAX] = m.tcpRtoMax;
1313 return stats->num_counters;
1316 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1317 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1318 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1320 static struct device_attribute *iwch_class_attributes[] = {
1326 static int iwch_port_immutable(struct ib_device *ibdev, u8 port_num,
1327 struct ib_port_immutable *immutable)
1329 struct ib_port_attr attr;
1332 err = iwch_query_port(ibdev, port_num, &attr);
1336 immutable->pkey_tbl_len = attr.pkey_tbl_len;
1337 immutable->gid_tbl_len = attr.gid_tbl_len;
1338 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
1343 static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str,
1346 struct iwch_dev *iwch_dev = to_iwch_dev(ibdev);
1347 struct ethtool_drvinfo info;
1348 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1350 PDBG("%s dev 0x%p\n", __func__, iwch_dev);
1351 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1352 snprintf(str, str_len, "%s", info.fw_version);
1355 int iwch_register_device(struct iwch_dev *dev)
1360 PDBG("%s iwch_dev %p\n", __func__, dev);
1361 strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
1362 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
1363 memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1364 dev->ibdev.owner = THIS_MODULE;
1365 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
1366 IB_DEVICE_MEM_WINDOW |
1367 IB_DEVICE_MEM_MGT_EXTENSIONS;
1369 /* cxgb3 supports STag 0. */
1370 dev->ibdev.local_dma_lkey = 0;
1372 dev->ibdev.uverbs_cmd_mask =
1373 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1374 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1375 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1376 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1377 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1378 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1379 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1380 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1381 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1382 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1383 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
1384 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1385 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1386 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
1387 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1388 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
1389 (1ull << IB_USER_VERBS_CMD_POST_RECV);
1390 dev->ibdev.node_type = RDMA_NODE_RNIC;
1391 BUILD_BUG_ON(sizeof(IWCH_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
1392 memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
1393 dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
1394 dev->ibdev.num_comp_vectors = 1;
1395 dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
1396 dev->ibdev.query_device = iwch_query_device;
1397 dev->ibdev.query_port = iwch_query_port;
1398 dev->ibdev.query_pkey = iwch_query_pkey;
1399 dev->ibdev.query_gid = iwch_query_gid;
1400 dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
1401 dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
1402 dev->ibdev.mmap = iwch_mmap;
1403 dev->ibdev.alloc_pd = iwch_allocate_pd;
1404 dev->ibdev.dealloc_pd = iwch_deallocate_pd;
1405 dev->ibdev.create_ah = iwch_ah_create;
1406 dev->ibdev.destroy_ah = iwch_ah_destroy;
1407 dev->ibdev.create_qp = iwch_create_qp;
1408 dev->ibdev.modify_qp = iwch_ib_modify_qp;
1409 dev->ibdev.destroy_qp = iwch_destroy_qp;
1410 dev->ibdev.create_cq = iwch_create_cq;
1411 dev->ibdev.destroy_cq = iwch_destroy_cq;
1412 dev->ibdev.resize_cq = iwch_resize_cq;
1413 dev->ibdev.poll_cq = iwch_poll_cq;
1414 dev->ibdev.get_dma_mr = iwch_get_dma_mr;
1415 dev->ibdev.reg_user_mr = iwch_reg_user_mr;
1416 dev->ibdev.dereg_mr = iwch_dereg_mr;
1417 dev->ibdev.alloc_mw = iwch_alloc_mw;
1418 dev->ibdev.dealloc_mw = iwch_dealloc_mw;
1419 dev->ibdev.alloc_mr = iwch_alloc_mr;
1420 dev->ibdev.map_mr_sg = iwch_map_mr_sg;
1421 dev->ibdev.attach_mcast = iwch_multicast_attach;
1422 dev->ibdev.detach_mcast = iwch_multicast_detach;
1423 dev->ibdev.process_mad = iwch_process_mad;
1424 dev->ibdev.req_notify_cq = iwch_arm_cq;
1425 dev->ibdev.post_send = iwch_post_send;
1426 dev->ibdev.post_recv = iwch_post_receive;
1427 dev->ibdev.alloc_hw_stats = iwch_alloc_stats;
1428 dev->ibdev.get_hw_stats = iwch_get_mib;
1429 dev->ibdev.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION;
1430 dev->ibdev.get_port_immutable = iwch_port_immutable;
1431 dev->ibdev.get_dev_fw_str = get_dev_fw_ver_str;
1433 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
1434 if (!dev->ibdev.iwcm)
1437 dev->ibdev.iwcm->connect = iwch_connect;
1438 dev->ibdev.iwcm->accept = iwch_accept_cr;
1439 dev->ibdev.iwcm->reject = iwch_reject_cr;
1440 dev->ibdev.iwcm->create_listen = iwch_create_listen;
1441 dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
1442 dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
1443 dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
1444 dev->ibdev.iwcm->get_qp = iwch_get_qp;
1445 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.t3cdev_p->lldev->name,
1446 sizeof(dev->ibdev.iwcm->ifname));
1448 ret = ib_register_device(&dev->ibdev, NULL);
1452 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
1453 ret = device_create_file(&dev->ibdev.dev,
1454 iwch_class_attributes[i]);
1461 ib_unregister_device(&dev->ibdev);
1463 kfree(dev->ibdev.iwcm);
1467 void iwch_unregister_device(struct iwch_dev *dev)
1471 PDBG("%s iwch_dev %p\n", __func__, dev);
1472 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
1473 device_remove_file(&dev->ibdev.dev,
1474 iwch_class_attributes[i]);
1475 ib_unregister_device(&dev->ibdev);
1476 kfree(dev->ibdev.iwcm);