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 "iwch_user.h"
64 static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
65 struct ib_ah_attr *ah_attr)
67 return ERR_PTR(-ENOSYS);
70 static int iwch_ah_destroy(struct ib_ah *ah)
75 static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
80 static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
85 static int iwch_process_mad(struct ib_device *ibdev,
88 const struct ib_wc *in_wc,
89 const struct ib_grh *in_grh,
90 const struct ib_mad_hdr *in_mad,
92 struct ib_mad_hdr *out_mad,
94 u16 *out_mad_pkey_index)
99 static int iwch_dealloc_ucontext(struct ib_ucontext *context)
101 struct iwch_dev *rhp = to_iwch_dev(context->device);
102 struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
103 struct iwch_mm_entry *mm, *tmp;
105 PDBG("%s context %p\n", __func__, context);
106 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
108 cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
113 static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
114 struct ib_udata *udata)
116 struct iwch_ucontext *context;
117 struct iwch_dev *rhp = to_iwch_dev(ibdev);
119 PDBG("%s ibdev %p\n", __func__, ibdev);
120 context = kzalloc(sizeof(*context), GFP_KERNEL);
122 return ERR_PTR(-ENOMEM);
123 cxio_init_ucontext(&rhp->rdev, &context->uctx);
124 INIT_LIST_HEAD(&context->mmaps);
125 spin_lock_init(&context->mmap_lock);
126 return &context->ibucontext;
129 static int iwch_destroy_cq(struct ib_cq *ib_cq)
133 PDBG("%s ib_cq %p\n", __func__, ib_cq);
134 chp = to_iwch_cq(ib_cq);
136 remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
137 atomic_dec(&chp->refcnt);
138 wait_event(chp->wait, !atomic_read(&chp->refcnt));
140 cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
145 static struct ib_cq *iwch_create_cq(struct ib_device *ibdev,
146 const struct ib_cq_init_attr *attr,
147 struct ib_ucontext *ib_context,
148 struct ib_udata *udata)
150 int entries = attr->cqe;
151 struct iwch_dev *rhp;
153 struct iwch_create_cq_resp uresp;
154 struct iwch_create_cq_req ureq;
155 struct iwch_ucontext *ucontext = NULL;
159 PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
161 return ERR_PTR(-EINVAL);
163 rhp = to_iwch_dev(ibdev);
164 chp = kzalloc(sizeof(*chp), GFP_KERNEL);
166 return ERR_PTR(-ENOMEM);
169 ucontext = to_iwch_ucontext(ib_context);
170 if (!t3a_device(rhp)) {
171 if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) {
173 return ERR_PTR(-EFAULT);
175 chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr;
179 if (t3a_device(rhp)) {
182 * T3A: Add some fluff to handle extra CQEs inserted
183 * for various errors.
184 * Additional CQE possibilities:
186 * incoming RDMA WRITE Failures
187 * incoming RDMA READ REQUEST FAILUREs
188 * NOTE: We cannot ensure the CQ won't overflow.
192 entries = roundup_pow_of_two(entries);
193 chp->cq.size_log2 = ilog2(entries);
195 if (cxio_create_cq(&rhp->rdev, &chp->cq, !ucontext)) {
197 return ERR_PTR(-ENOMEM);
200 chp->ibcq.cqe = 1 << chp->cq.size_log2;
201 spin_lock_init(&chp->lock);
202 spin_lock_init(&chp->comp_handler_lock);
203 atomic_set(&chp->refcnt, 1);
204 init_waitqueue_head(&chp->wait);
205 if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) {
206 cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
208 return ERR_PTR(-ENOMEM);
212 struct iwch_mm_entry *mm;
214 mm = kmalloc(sizeof *mm, GFP_KERNEL);
216 iwch_destroy_cq(&chp->ibcq);
217 return ERR_PTR(-ENOMEM);
219 uresp.cqid = chp->cq.cqid;
220 uresp.size_log2 = chp->cq.size_log2;
221 spin_lock(&ucontext->mmap_lock);
222 uresp.key = ucontext->key;
223 ucontext->key += PAGE_SIZE;
224 spin_unlock(&ucontext->mmap_lock);
226 mm->addr = virt_to_phys(chp->cq.queue);
227 if (udata->outlen < sizeof uresp) {
229 printk(KERN_WARNING MOD "Warning - "
230 "downlevel libcxgb3 (non-fatal).\n");
231 mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
232 sizeof(struct t3_cqe));
233 resplen = sizeof(struct iwch_create_cq_resp_v0);
235 mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) *
236 sizeof(struct t3_cqe));
237 uresp.memsize = mm->len;
239 resplen = sizeof uresp;
241 if (ib_copy_to_udata(udata, &uresp, resplen)) {
243 iwch_destroy_cq(&chp->ibcq);
244 return ERR_PTR(-EFAULT);
246 insert_mmap(ucontext, mm);
248 PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n",
249 chp->cq.cqid, chp, (1 << chp->cq.size_log2),
250 (unsigned long long) chp->cq.dma_addr);
254 static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
257 struct iwch_cq *chp = to_iwch_cq(cq);
258 struct t3_cq oldcq, newcq;
261 PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe);
263 /* We don't downsize... */
267 /* create new t3_cq with new size */
268 cqe = roundup_pow_of_two(cqe+1);
269 newcq.size_log2 = ilog2(cqe);
271 /* Dont allow resize to less than the current wce count */
272 if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) {
276 /* Quiesce all QPs using this CQ */
277 ret = iwch_quiesce_qps(chp);
282 ret = cxio_create_cq(&chp->rhp->rdev, &newcq);
288 memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) *
289 sizeof(struct t3_cqe));
291 /* old iwch_qp gets new t3_cq but keeps old cqid */
294 chp->cq.cqid = oldcq.cqid;
296 /* resize new t3_cq to update the HW context */
297 ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq);
302 chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1;
304 /* destroy old t3_cq */
305 oldcq.cqid = newcq.cqid;
306 ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq);
308 printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
312 /* add user hooks here */
315 ret = iwch_resume_qps(chp);
322 static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
324 struct iwch_dev *rhp;
326 enum t3_cq_opcode cq_op;
331 chp = to_iwch_cq(ibcq);
333 if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
337 if (chp->user_rptr_addr) {
338 if (get_user(rptr, chp->user_rptr_addr))
340 spin_lock_irqsave(&chp->lock, flag);
343 spin_lock_irqsave(&chp->lock, flag);
344 PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr);
345 err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
346 spin_unlock_irqrestore(&chp->lock, flag);
348 printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
350 if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
355 static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
357 int len = vma->vm_end - vma->vm_start;
358 u32 key = vma->vm_pgoff << PAGE_SHIFT;
359 struct cxio_rdev *rdev_p;
361 struct iwch_mm_entry *mm;
362 struct iwch_ucontext *ucontext;
365 PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
368 if (vma->vm_start & (PAGE_SIZE-1)) {
372 rdev_p = &(to_iwch_dev(context->device)->rdev);
373 ucontext = to_iwch_ucontext(context);
375 mm = remove_mmap(ucontext, key, len);
381 if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
382 (addr < (rdev_p->rnic_info.udbell_physbase +
383 rdev_p->rnic_info.udbell_len))) {
386 * Map T3 DB register.
388 if (vma->vm_flags & VM_READ) {
392 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
393 vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
394 vma->vm_flags &= ~VM_MAYREAD;
395 ret = io_remap_pfn_range(vma, vma->vm_start,
397 len, vma->vm_page_prot);
401 * Map WQ or CQ contig dma memory...
403 ret = remap_pfn_range(vma, vma->vm_start,
405 len, vma->vm_page_prot);
411 static int iwch_deallocate_pd(struct ib_pd *pd)
413 struct iwch_dev *rhp;
416 php = to_iwch_pd(pd);
418 PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
419 cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
424 static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
425 struct ib_ucontext *context,
426 struct ib_udata *udata)
430 struct iwch_dev *rhp;
432 PDBG("%s ibdev %p\n", __func__, ibdev);
433 rhp = (struct iwch_dev *) ibdev;
434 pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
436 return ERR_PTR(-EINVAL);
437 php = kzalloc(sizeof(*php), GFP_KERNEL);
439 cxio_hal_put_pdid(rhp->rdev.rscp, pdid);
440 return ERR_PTR(-ENOMEM);
445 if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
446 iwch_deallocate_pd(&php->ibpd);
447 return ERR_PTR(-EFAULT);
450 PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
454 static int iwch_dereg_mr(struct ib_mr *ib_mr)
456 struct iwch_dev *rhp;
460 PDBG("%s ib_mr %p\n", __func__, ib_mr);
462 mhp = to_iwch_mr(ib_mr);
465 mmid = mhp->attr.stag >> 8;
466 cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
469 remove_handle(rhp, &rhp->mmidr, mmid);
471 kfree((void *) (unsigned long) mhp->kva);
473 ib_umem_release(mhp->umem);
474 PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
479 static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
481 const u64 total_size = 0xffffffff;
482 const u64 mask = (total_size + PAGE_SIZE - 1) & PAGE_MASK;
483 struct iwch_pd *php = to_iwch_pd(pd);
484 struct iwch_dev *rhp = php->rhp;
487 int shift = 26, npages, ret, i;
489 PDBG("%s ib_pd %p\n", __func__, pd);
492 * T3 only supports 32 bits of size.
494 if (sizeof(phys_addr_t) > 4) {
495 pr_warn_once(MOD "Cannot support dma_mrs on this platform.\n");
496 return ERR_PTR(-ENOTSUPP);
499 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
501 return ERR_PTR(-ENOMEM);
505 npages = (total_size + (1ULL << shift) - 1) >> shift;
511 page_list = kmalloc_array(npages, sizeof(u64), GFP_KERNEL);
517 for (i = 0; i < npages; i++)
518 page_list[i] = cpu_to_be64((u64)i << shift);
520 PDBG("%s mask 0x%llx shift %d len %lld pbl_size %d\n",
521 __func__, mask, shift, total_size, npages);
523 ret = iwch_alloc_pbl(mhp, npages);
529 ret = iwch_write_pbl(mhp, page_list, npages, 0);
534 mhp->attr.pdid = php->pdid;
537 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
538 mhp->attr.va_fbo = 0;
539 mhp->attr.page_size = shift - 12;
541 mhp->attr.len = (u32) total_size;
542 mhp->attr.pbl_size = npages;
543 ret = iwch_register_mem(rhp, php, mhp, shift);
557 static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
558 u64 virt, int acc, struct ib_udata *udata)
564 struct iwch_dev *rhp;
567 struct iwch_reg_user_mr_resp uresp;
568 struct scatterlist *sg;
569 PDBG("%s ib_pd %p\n", __func__, pd);
571 php = to_iwch_pd(pd);
573 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
575 return ERR_PTR(-ENOMEM);
579 mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
580 if (IS_ERR(mhp->umem)) {
581 err = PTR_ERR(mhp->umem);
586 shift = ffs(mhp->umem->page_size) - 1;
590 err = iwch_alloc_pbl(mhp, n);
594 pages = (__be64 *) __get_free_page(GFP_KERNEL);
602 for_each_sg(mhp->umem->sg_head.sgl, sg, mhp->umem->nmap, entry) {
603 len = sg_dma_len(sg) >> shift;
604 for (k = 0; k < len; ++k) {
605 pages[i++] = cpu_to_be64(sg_dma_address(sg) +
606 mhp->umem->page_size * k);
607 if (i == PAGE_SIZE / sizeof *pages) {
608 err = iwch_write_pbl(mhp, pages, i, n);
618 err = iwch_write_pbl(mhp, pages, i, n);
621 free_page((unsigned long) pages);
625 mhp->attr.pdid = php->pdid;
627 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
628 mhp->attr.va_fbo = virt;
629 mhp->attr.page_size = shift - 12;
630 mhp->attr.len = (u32) length;
632 err = iwch_register_mem(rhp, php, mhp, shift);
636 if (udata && !t3a_device(rhp)) {
637 uresp.pbl_addr = (mhp->attr.pbl_addr -
638 rhp->rdev.rnic_info.pbl_base) >> 3;
639 PDBG("%s user resp pbl_addr 0x%x\n", __func__,
642 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
643 iwch_dereg_mr(&mhp->ibmr);
655 ib_umem_release(mhp->umem);
660 static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
661 struct ib_udata *udata)
663 struct iwch_dev *rhp;
670 if (type != IB_MW_TYPE_1)
671 return ERR_PTR(-EINVAL);
673 php = to_iwch_pd(pd);
675 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
677 return ERR_PTR(-ENOMEM);
678 ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
684 mhp->attr.pdid = php->pdid;
685 mhp->attr.type = TPT_MW;
686 mhp->attr.stag = stag;
688 mhp->ibmw.rkey = stag;
689 if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) {
690 cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
692 return ERR_PTR(-ENOMEM);
694 PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
698 static int iwch_dealloc_mw(struct ib_mw *mw)
700 struct iwch_dev *rhp;
704 mhp = to_iwch_mw(mw);
706 mmid = (mw->rkey) >> 8;
707 cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
708 remove_handle(rhp, &rhp->mmidr, mmid);
709 PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
714 static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd,
715 enum ib_mr_type mr_type,
718 struct iwch_dev *rhp;
725 if (mr_type != IB_MR_TYPE_MEM_REG ||
726 max_num_sg > T3_MAX_FASTREG_DEPTH)
727 return ERR_PTR(-EINVAL);
729 php = to_iwch_pd(pd);
731 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
735 mhp->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL);
742 ret = iwch_alloc_pbl(mhp, max_num_sg);
745 mhp->attr.pbl_size = max_num_sg;
746 ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
747 mhp->attr.pbl_size, mhp->attr.pbl_addr);
750 mhp->attr.pdid = php->pdid;
751 mhp->attr.type = TPT_NON_SHARED_MR;
752 mhp->attr.stag = stag;
755 mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
756 if (insert_handle(rhp, &rhp->mmidr, mhp, mmid))
759 PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
762 cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size,
774 static int iwch_set_page(struct ib_mr *ibmr, u64 addr)
776 struct iwch_mr *mhp = to_iwch_mr(ibmr);
778 if (unlikely(mhp->npages == mhp->attr.pbl_size))
781 mhp->pages[mhp->npages++] = addr;
786 static int iwch_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
787 int sg_nents, unsigned int *sg_offset)
789 struct iwch_mr *mhp = to_iwch_mr(ibmr);
793 return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, iwch_set_page);
796 static int iwch_destroy_qp(struct ib_qp *ib_qp)
798 struct iwch_dev *rhp;
800 struct iwch_qp_attributes attrs;
801 struct iwch_ucontext *ucontext;
803 qhp = to_iwch_qp(ib_qp);
806 attrs.next_state = IWCH_QP_STATE_ERROR;
807 iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
808 wait_event(qhp->wait, !qhp->ep);
810 remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid);
812 atomic_dec(&qhp->refcnt);
813 wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
815 ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context)
817 cxio_destroy_qp(&rhp->rdev, &qhp->wq,
818 ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
820 PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
821 ib_qp, qhp->wq.qpid, qhp);
826 static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
827 struct ib_qp_init_attr *attrs,
828 struct ib_udata *udata)
830 struct iwch_dev *rhp;
833 struct iwch_cq *schp;
834 struct iwch_cq *rchp;
835 struct iwch_create_qp_resp uresp;
836 int wqsize, sqsize, rqsize;
837 struct iwch_ucontext *ucontext;
839 PDBG("%s ib_pd %p\n", __func__, pd);
840 if (attrs->qp_type != IB_QPT_RC)
841 return ERR_PTR(-EINVAL);
842 php = to_iwch_pd(pd);
844 schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
845 rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
847 return ERR_PTR(-EINVAL);
849 /* The RQT size must be # of entries + 1 rounded up to a power of two */
850 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
851 if (rqsize == attrs->cap.max_recv_wr)
852 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
854 /* T3 doesn't support RQT depth < 16 */
858 if (rqsize > T3_MAX_RQ_SIZE)
859 return ERR_PTR(-EINVAL);
861 if (attrs->cap.max_inline_data > T3_MAX_INLINE)
862 return ERR_PTR(-EINVAL);
865 * NOTE: The SQ and total WQ sizes don't need to be
866 * a power of two. However, all the code assumes
867 * they are. EG: Q_FREECNT() and friends.
869 sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
870 wqsize = roundup_pow_of_two(rqsize + sqsize);
873 * Kernel users need more wq space for fastreg WRs which can take
876 ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
877 if (!ucontext && wqsize < (rqsize + (2 * sqsize)))
878 wqsize = roundup_pow_of_two(rqsize +
879 roundup_pow_of_two(attrs->cap.max_send_wr * 2));
880 PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
881 wqsize, sqsize, rqsize);
882 qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
884 return ERR_PTR(-ENOMEM);
885 qhp->wq.size_log2 = ilog2(wqsize);
886 qhp->wq.rq_size_log2 = ilog2(rqsize);
887 qhp->wq.sq_size_log2 = ilog2(sqsize);
888 if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
889 ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
891 return ERR_PTR(-ENOMEM);
894 attrs->cap.max_recv_wr = rqsize - 1;
895 attrs->cap.max_send_wr = sqsize;
896 attrs->cap.max_inline_data = T3_MAX_INLINE;
899 qhp->attr.pd = php->pdid;
900 qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
901 qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
902 qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
903 qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
904 qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
905 qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
906 qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
907 qhp->attr.state = IWCH_QP_STATE_IDLE;
908 qhp->attr.next_state = IWCH_QP_STATE_IDLE;
911 * XXX - These don't get passed in from the openib user
912 * at create time. The CM sets them via a QP modify.
913 * Need to fix... I think the CM should
915 qhp->attr.enable_rdma_read = 1;
916 qhp->attr.enable_rdma_write = 1;
917 qhp->attr.enable_bind = 1;
918 qhp->attr.max_ord = 1;
919 qhp->attr.max_ird = 1;
921 spin_lock_init(&qhp->lock);
922 init_waitqueue_head(&qhp->wait);
923 atomic_set(&qhp->refcnt, 1);
925 if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) {
926 cxio_destroy_qp(&rhp->rdev, &qhp->wq,
927 ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
929 return ERR_PTR(-ENOMEM);
934 struct iwch_mm_entry *mm1, *mm2;
936 mm1 = kmalloc(sizeof *mm1, GFP_KERNEL);
938 iwch_destroy_qp(&qhp->ibqp);
939 return ERR_PTR(-ENOMEM);
942 mm2 = kmalloc(sizeof *mm2, GFP_KERNEL);
945 iwch_destroy_qp(&qhp->ibqp);
946 return ERR_PTR(-ENOMEM);
949 uresp.qpid = qhp->wq.qpid;
950 uresp.size_log2 = qhp->wq.size_log2;
951 uresp.sq_size_log2 = qhp->wq.sq_size_log2;
952 uresp.rq_size_log2 = qhp->wq.rq_size_log2;
953 spin_lock(&ucontext->mmap_lock);
954 uresp.key = ucontext->key;
955 ucontext->key += PAGE_SIZE;
956 uresp.db_key = ucontext->key;
957 ucontext->key += PAGE_SIZE;
958 spin_unlock(&ucontext->mmap_lock);
959 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
962 iwch_destroy_qp(&qhp->ibqp);
963 return ERR_PTR(-EFAULT);
965 mm1->key = uresp.key;
966 mm1->addr = virt_to_phys(qhp->wq.queue);
967 mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr));
968 insert_mmap(ucontext, mm1);
969 mm2->key = uresp.db_key;
970 mm2->addr = qhp->wq.udb & PAGE_MASK;
971 mm2->len = PAGE_SIZE;
972 insert_mmap(ucontext, mm2);
974 qhp->ibqp.qp_num = qhp->wq.qpid;
975 init_timer(&(qhp->timer));
976 PDBG("%s sq_num_entries %d, rq_num_entries %d "
977 "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n",
978 __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
979 qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
980 1 << qhp->wq.size_log2, qhp->wq.rq_addr);
984 static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
985 int attr_mask, struct ib_udata *udata)
987 struct iwch_dev *rhp;
989 enum iwch_qp_attr_mask mask = 0;
990 struct iwch_qp_attributes attrs;
992 PDBG("%s ib_qp %p\n", __func__, ibqp);
994 /* iwarp does not support the RTR state */
995 if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
996 attr_mask &= ~IB_QP_STATE;
998 /* Make sure we still have something left to do */
1002 memset(&attrs, 0, sizeof attrs);
1003 qhp = to_iwch_qp(ibqp);
1006 attrs.next_state = iwch_convert_state(attr->qp_state);
1007 attrs.enable_rdma_read = (attr->qp_access_flags &
1008 IB_ACCESS_REMOTE_READ) ? 1 : 0;
1009 attrs.enable_rdma_write = (attr->qp_access_flags &
1010 IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
1011 attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
1014 mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
1015 mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
1016 (IWCH_QP_ATTR_ENABLE_RDMA_READ |
1017 IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
1018 IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
1020 return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
1023 void iwch_qp_add_ref(struct ib_qp *qp)
1025 PDBG("%s ib_qp %p\n", __func__, qp);
1026 atomic_inc(&(to_iwch_qp(qp)->refcnt));
1029 void iwch_qp_rem_ref(struct ib_qp *qp)
1031 PDBG("%s ib_qp %p\n", __func__, qp);
1032 if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
1033 wake_up(&(to_iwch_qp(qp)->wait));
1036 static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
1038 PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
1039 return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
1043 static int iwch_query_pkey(struct ib_device *ibdev,
1044 u8 port, u16 index, u16 * pkey)
1046 PDBG("%s ibdev %p\n", __func__, ibdev);
1051 static int iwch_query_gid(struct ib_device *ibdev, u8 port,
1052 int index, union ib_gid *gid)
1054 struct iwch_dev *dev;
1056 PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
1057 __func__, ibdev, port, index, gid);
1058 dev = to_iwch_dev(ibdev);
1059 BUG_ON(port == 0 || port > 2);
1060 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
1061 memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
1065 static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev)
1067 struct ethtool_drvinfo info;
1068 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1070 unsigned fw_maj, fw_min, fw_mic;
1072 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1074 next = info.fw_version + 1;
1075 cp = strsep(&next, ".");
1076 sscanf(cp, "%i", &fw_maj);
1077 cp = strsep(&next, ".");
1078 sscanf(cp, "%i", &fw_min);
1079 cp = strsep(&next, ".");
1080 sscanf(cp, "%i", &fw_mic);
1082 return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) |
1086 static int iwch_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
1087 struct ib_udata *uhw)
1090 struct iwch_dev *dev;
1092 PDBG("%s ibdev %p\n", __func__, ibdev);
1094 if (uhw->inlen || uhw->outlen)
1097 dev = to_iwch_dev(ibdev);
1098 memset(props, 0, sizeof *props);
1099 memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1100 props->hw_ver = dev->rdev.t3cdev_p->type;
1101 props->fw_ver = fw_vers_string_to_u64(dev);
1102 props->device_cap_flags = dev->device_cap_flags;
1103 props->page_size_cap = dev->attr.mem_pgsizes_bitmask;
1104 props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
1105 props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
1106 props->max_mr_size = dev->attr.max_mr_size;
1107 props->max_qp = dev->attr.max_qps;
1108 props->max_qp_wr = dev->attr.max_wrs;
1109 props->max_sge = dev->attr.max_sge_per_wr;
1110 props->max_sge_rd = 1;
1111 props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
1112 props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
1113 props->max_cq = dev->attr.max_cqs;
1114 props->max_cqe = dev->attr.max_cqes_per_cq;
1115 props->max_mr = dev->attr.max_mem_regs;
1116 props->max_pd = dev->attr.max_pds;
1117 props->local_ca_ack_delay = 0;
1118 props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH;
1123 static int iwch_query_port(struct ib_device *ibdev,
1124 u8 port, struct ib_port_attr *props)
1126 struct iwch_dev *dev;
1127 struct net_device *netdev;
1128 struct in_device *inetdev;
1130 PDBG("%s ibdev %p\n", __func__, ibdev);
1132 dev = to_iwch_dev(ibdev);
1133 netdev = dev->rdev.port_info.lldevs[port-1];
1135 memset(props, 0, sizeof(struct ib_port_attr));
1136 props->max_mtu = IB_MTU_4096;
1137 if (netdev->mtu >= 4096)
1138 props->active_mtu = IB_MTU_4096;
1139 else if (netdev->mtu >= 2048)
1140 props->active_mtu = IB_MTU_2048;
1141 else if (netdev->mtu >= 1024)
1142 props->active_mtu = IB_MTU_1024;
1143 else if (netdev->mtu >= 512)
1144 props->active_mtu = IB_MTU_512;
1146 props->active_mtu = IB_MTU_256;
1148 if (!netif_carrier_ok(netdev))
1149 props->state = IB_PORT_DOWN;
1151 inetdev = in_dev_get(netdev);
1153 if (inetdev->ifa_list)
1154 props->state = IB_PORT_ACTIVE;
1156 props->state = IB_PORT_INIT;
1157 in_dev_put(inetdev);
1159 props->state = IB_PORT_INIT;
1162 props->port_cap_flags =
1164 IB_PORT_SNMP_TUNNEL_SUP |
1165 IB_PORT_REINIT_SUP |
1166 IB_PORT_DEVICE_MGMT_SUP |
1167 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
1168 props->gid_tbl_len = 1;
1169 props->pkey_tbl_len = 1;
1170 props->active_width = 2;
1171 props->active_speed = IB_SPEED_DDR;
1172 props->max_msg_sz = -1;
1177 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
1180 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1182 PDBG("%s dev 0x%p\n", __func__, dev);
1183 return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
1186 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
1189 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1191 struct ethtool_drvinfo info;
1192 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1194 PDBG("%s dev 0x%p\n", __func__, dev);
1195 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1196 return sprintf(buf, "%s\n", info.driver);
1199 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
1202 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1204 PDBG("%s dev 0x%p\n", __func__, dev);
1205 return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
1206 iwch_dev->rdev.rnic_info.pdev->device);
1238 static const char * const names[] = {
1239 [IPINRECEIVES] = "ipInReceives",
1240 [IPINHDRERRORS] = "ipInHdrErrors",
1241 [IPINADDRERRORS] = "ipInAddrErrors",
1242 [IPINUNKNOWNPROTOS] = "ipInUnknownProtos",
1243 [IPINDISCARDS] = "ipInDiscards",
1244 [IPINDELIVERS] = "ipInDelivers",
1245 [IPOUTREQUESTS] = "ipOutRequests",
1246 [IPOUTDISCARDS] = "ipOutDiscards",
1247 [IPOUTNOROUTES] = "ipOutNoRoutes",
1248 [IPREASMTIMEOUT] = "ipReasmTimeout",
1249 [IPREASMREQDS] = "ipReasmReqds",
1250 [IPREASMOKS] = "ipReasmOKs",
1251 [IPREASMFAILS] = "ipReasmFails",
1252 [TCPACTIVEOPENS] = "tcpActiveOpens",
1253 [TCPPASSIVEOPENS] = "tcpPassiveOpens",
1254 [TCPATTEMPTFAILS] = "tcpAttemptFails",
1255 [TCPESTABRESETS] = "tcpEstabResets",
1256 [TCPCURRESTAB] = "tcpCurrEstab",
1257 [TCPINSEGS] = "tcpInSegs",
1258 [TCPOUTSEGS] = "tcpOutSegs",
1259 [TCPRETRANSSEGS] = "tcpRetransSegs",
1260 [TCPINERRS] = "tcpInErrs",
1261 [TCPOUTRSTS] = "tcpOutRsts",
1262 [TCPRTOMIN] = "tcpRtoMin",
1263 [TCPRTOMAX] = "tcpRtoMax",
1266 static struct rdma_hw_stats *iwch_alloc_stats(struct ib_device *ibdev,
1269 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
1271 /* Our driver only supports device level stats */
1275 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
1276 RDMA_HW_STATS_DEFAULT_LIFESPAN);
1279 static int iwch_get_mib(struct ib_device *ibdev, struct rdma_hw_stats *stats,
1282 struct iwch_dev *dev;
1283 struct tp_mib_stats m;
1286 if (port != 0 || !stats)
1289 PDBG("%s ibdev %p\n", __func__, ibdev);
1290 dev = to_iwch_dev(ibdev);
1291 ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m);
1295 stats->value[IPINRECEIVES] = ((u64)m.ipInReceive_hi << 32) + m.ipInReceive_lo;
1296 stats->value[IPINHDRERRORS] = ((u64)m.ipInHdrErrors_hi << 32) + m.ipInHdrErrors_lo;
1297 stats->value[IPINADDRERRORS] = ((u64)m.ipInAddrErrors_hi << 32) + m.ipInAddrErrors_lo;
1298 stats->value[IPINUNKNOWNPROTOS] = ((u64)m.ipInUnknownProtos_hi << 32) + m.ipInUnknownProtos_lo;
1299 stats->value[IPINDISCARDS] = ((u64)m.ipInDiscards_hi << 32) + m.ipInDiscards_lo;
1300 stats->value[IPINDELIVERS] = ((u64)m.ipInDelivers_hi << 32) + m.ipInDelivers_lo;
1301 stats->value[IPOUTREQUESTS] = ((u64)m.ipOutRequests_hi << 32) + m.ipOutRequests_lo;
1302 stats->value[IPOUTDISCARDS] = ((u64)m.ipOutDiscards_hi << 32) + m.ipOutDiscards_lo;
1303 stats->value[IPOUTNOROUTES] = ((u64)m.ipOutNoRoutes_hi << 32) + m.ipOutNoRoutes_lo;
1304 stats->value[IPREASMTIMEOUT] = m.ipReasmTimeout;
1305 stats->value[IPREASMREQDS] = m.ipReasmReqds;
1306 stats->value[IPREASMOKS] = m.ipReasmOKs;
1307 stats->value[IPREASMFAILS] = m.ipReasmFails;
1308 stats->value[TCPACTIVEOPENS] = m.tcpActiveOpens;
1309 stats->value[TCPPASSIVEOPENS] = m.tcpPassiveOpens;
1310 stats->value[TCPATTEMPTFAILS] = m.tcpAttemptFails;
1311 stats->value[TCPESTABRESETS] = m.tcpEstabResets;
1312 stats->value[TCPCURRESTAB] = m.tcpOutRsts;
1313 stats->value[TCPINSEGS] = m.tcpCurrEstab;
1314 stats->value[TCPOUTSEGS] = ((u64)m.tcpInSegs_hi << 32) + m.tcpInSegs_lo;
1315 stats->value[TCPRETRANSSEGS] = ((u64)m.tcpOutSegs_hi << 32) + m.tcpOutSegs_lo;
1316 stats->value[TCPINERRS] = ((u64)m.tcpRetransSeg_hi << 32) + m.tcpRetransSeg_lo,
1317 stats->value[TCPOUTRSTS] = ((u64)m.tcpInErrs_hi << 32) + m.tcpInErrs_lo;
1318 stats->value[TCPRTOMIN] = m.tcpRtoMin;
1319 stats->value[TCPRTOMAX] = m.tcpRtoMax;
1321 return stats->num_counters;
1324 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1325 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1326 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1328 static struct device_attribute *iwch_class_attributes[] = {
1334 static int iwch_port_immutable(struct ib_device *ibdev, u8 port_num,
1335 struct ib_port_immutable *immutable)
1337 struct ib_port_attr attr;
1340 err = iwch_query_port(ibdev, port_num, &attr);
1344 immutable->pkey_tbl_len = attr.pkey_tbl_len;
1345 immutable->gid_tbl_len = attr.gid_tbl_len;
1346 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
1351 static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str,
1354 struct iwch_dev *iwch_dev = to_iwch_dev(ibdev);
1355 struct ethtool_drvinfo info;
1356 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1358 PDBG("%s dev 0x%p\n", __func__, iwch_dev);
1359 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1360 snprintf(str, str_len, "%s", info.fw_version);
1363 int iwch_register_device(struct iwch_dev *dev)
1368 PDBG("%s iwch_dev %p\n", __func__, dev);
1369 strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
1370 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
1371 memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1372 dev->ibdev.owner = THIS_MODULE;
1373 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
1374 IB_DEVICE_MEM_WINDOW |
1375 IB_DEVICE_MEM_MGT_EXTENSIONS;
1377 /* cxgb3 supports STag 0. */
1378 dev->ibdev.local_dma_lkey = 0;
1380 dev->ibdev.uverbs_cmd_mask =
1381 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1382 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1383 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1384 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1385 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1386 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1387 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1388 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1389 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1390 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1391 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
1392 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1393 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1394 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
1395 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1396 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
1397 (1ull << IB_USER_VERBS_CMD_POST_RECV);
1398 dev->ibdev.node_type = RDMA_NODE_RNIC;
1399 memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
1400 dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
1401 dev->ibdev.num_comp_vectors = 1;
1402 dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
1403 dev->ibdev.query_device = iwch_query_device;
1404 dev->ibdev.query_port = iwch_query_port;
1405 dev->ibdev.query_pkey = iwch_query_pkey;
1406 dev->ibdev.query_gid = iwch_query_gid;
1407 dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
1408 dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
1409 dev->ibdev.mmap = iwch_mmap;
1410 dev->ibdev.alloc_pd = iwch_allocate_pd;
1411 dev->ibdev.dealloc_pd = iwch_deallocate_pd;
1412 dev->ibdev.create_ah = iwch_ah_create;
1413 dev->ibdev.destroy_ah = iwch_ah_destroy;
1414 dev->ibdev.create_qp = iwch_create_qp;
1415 dev->ibdev.modify_qp = iwch_ib_modify_qp;
1416 dev->ibdev.destroy_qp = iwch_destroy_qp;
1417 dev->ibdev.create_cq = iwch_create_cq;
1418 dev->ibdev.destroy_cq = iwch_destroy_cq;
1419 dev->ibdev.resize_cq = iwch_resize_cq;
1420 dev->ibdev.poll_cq = iwch_poll_cq;
1421 dev->ibdev.get_dma_mr = iwch_get_dma_mr;
1422 dev->ibdev.reg_user_mr = iwch_reg_user_mr;
1423 dev->ibdev.dereg_mr = iwch_dereg_mr;
1424 dev->ibdev.alloc_mw = iwch_alloc_mw;
1425 dev->ibdev.dealloc_mw = iwch_dealloc_mw;
1426 dev->ibdev.alloc_mr = iwch_alloc_mr;
1427 dev->ibdev.map_mr_sg = iwch_map_mr_sg;
1428 dev->ibdev.attach_mcast = iwch_multicast_attach;
1429 dev->ibdev.detach_mcast = iwch_multicast_detach;
1430 dev->ibdev.process_mad = iwch_process_mad;
1431 dev->ibdev.req_notify_cq = iwch_arm_cq;
1432 dev->ibdev.post_send = iwch_post_send;
1433 dev->ibdev.post_recv = iwch_post_receive;
1434 dev->ibdev.alloc_hw_stats = iwch_alloc_stats;
1435 dev->ibdev.get_hw_stats = iwch_get_mib;
1436 dev->ibdev.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION;
1437 dev->ibdev.get_port_immutable = iwch_port_immutable;
1438 dev->ibdev.get_dev_fw_str = get_dev_fw_ver_str;
1440 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
1441 if (!dev->ibdev.iwcm)
1444 dev->ibdev.iwcm->connect = iwch_connect;
1445 dev->ibdev.iwcm->accept = iwch_accept_cr;
1446 dev->ibdev.iwcm->reject = iwch_reject_cr;
1447 dev->ibdev.iwcm->create_listen = iwch_create_listen;
1448 dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
1449 dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
1450 dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
1451 dev->ibdev.iwcm->get_qp = iwch_get_qp;
1452 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.t3cdev_p->lldev->name,
1453 sizeof(dev->ibdev.iwcm->ifname));
1455 ret = ib_register_device(&dev->ibdev, NULL);
1459 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
1460 ret = device_create_file(&dev->ibdev.dev,
1461 iwch_class_attributes[i]);
1468 ib_unregister_device(&dev->ibdev);
1470 kfree(dev->ibdev.iwcm);
1474 void iwch_unregister_device(struct iwch_dev *dev)
1478 PDBG("%s iwch_dev %p\n", __func__, dev);
1479 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
1480 device_remove_file(&dev->ibdev.dev,
1481 iwch_class_attributes[i]);
1482 ib_unregister_device(&dev->ibdev);
1483 kfree(dev->ibdev.iwcm);