| /* |
| * Copyright (c) 2006 Chelsio, Inc. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/device.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/delay.h> |
| #include <linux/errno.h> |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/ethtool.h> |
| #include <linux/rtnetlink.h> |
| |
| #include <asm/io.h> |
| #include <asm/irq.h> |
| #include <asm/byteorder.h> |
| |
| #include <rdma/iw_cm.h> |
| #include <rdma/ib_verbs.h> |
| #include <rdma/ib_smi.h> |
| #include <rdma/ib_umem.h> |
| #include <rdma/ib_user_verbs.h> |
| |
| #include "cxio_hal.h" |
| #include "iwch.h" |
| #include "iwch_provider.h" |
| #include "iwch_cm.h" |
| #include "iwch_user.h" |
| #include "common.h" |
| |
| static int iwch_modify_port(struct ib_device *ibdev, |
| u8 port, int port_modify_mask, |
| struct ib_port_modify *props) |
| { |
| return -ENOSYS; |
| } |
| |
| static struct ib_ah *iwch_ah_create(struct ib_pd *pd, |
| struct ib_ah_attr *ah_attr) |
| { |
| return ERR_PTR(-ENOSYS); |
| } |
| |
| static int iwch_ah_destroy(struct ib_ah *ah) |
| { |
| return -ENOSYS; |
| } |
| |
| static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
| { |
| return -ENOSYS; |
| } |
| |
| static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
| { |
| return -ENOSYS; |
| } |
| |
| static int iwch_process_mad(struct ib_device *ibdev, |
| int mad_flags, |
| u8 port_num, |
| struct ib_wc *in_wc, |
| struct ib_grh *in_grh, |
| struct ib_mad *in_mad, struct ib_mad *out_mad) |
| { |
| return -ENOSYS; |
| } |
| |
| static int iwch_dealloc_ucontext(struct ib_ucontext *context) |
| { |
| struct iwch_dev *rhp = to_iwch_dev(context->device); |
| struct iwch_ucontext *ucontext = to_iwch_ucontext(context); |
| struct iwch_mm_entry *mm, *tmp; |
| |
| PDBG("%s context %p\n", __func__, context); |
| list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) |
| kfree(mm); |
| cxio_release_ucontext(&rhp->rdev, &ucontext->uctx); |
| kfree(ucontext); |
| return 0; |
| } |
| |
| static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev, |
| struct ib_udata *udata) |
| { |
| struct iwch_ucontext *context; |
| struct iwch_dev *rhp = to_iwch_dev(ibdev); |
| |
| PDBG("%s ibdev %p\n", __func__, ibdev); |
| context = kzalloc(sizeof(*context), GFP_KERNEL); |
| if (!context) |
| return ERR_PTR(-ENOMEM); |
| cxio_init_ucontext(&rhp->rdev, &context->uctx); |
| INIT_LIST_HEAD(&context->mmaps); |
| spin_lock_init(&context->mmap_lock); |
| return &context->ibucontext; |
| } |
| |
| static int iwch_destroy_cq(struct ib_cq *ib_cq) |
| { |
| struct iwch_cq *chp; |
| |
| PDBG("%s ib_cq %p\n", __func__, ib_cq); |
| chp = to_iwch_cq(ib_cq); |
| |
| remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid); |
| atomic_dec(&chp->refcnt); |
| wait_event(chp->wait, !atomic_read(&chp->refcnt)); |
| |
| cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); |
| kfree(chp); |
| return 0; |
| } |
| |
| static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector, |
| struct ib_ucontext *ib_context, |
| struct ib_udata *udata) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_cq *chp; |
| struct iwch_create_cq_resp uresp; |
| struct iwch_create_cq_req ureq; |
| struct iwch_ucontext *ucontext = NULL; |
| |
| PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries); |
| rhp = to_iwch_dev(ibdev); |
| chp = kzalloc(sizeof(*chp), GFP_KERNEL); |
| if (!chp) |
| return ERR_PTR(-ENOMEM); |
| |
| if (ib_context) { |
| ucontext = to_iwch_ucontext(ib_context); |
| if (!t3a_device(rhp)) { |
| if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) { |
| kfree(chp); |
| return ERR_PTR(-EFAULT); |
| } |
| chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr; |
| } |
| } |
| |
| if (t3a_device(rhp)) { |
| |
| /* |
| * T3A: Add some fluff to handle extra CQEs inserted |
| * for various errors. |
| * Additional CQE possibilities: |
| * TERMINATE, |
| * incoming RDMA WRITE Failures |
| * incoming RDMA READ REQUEST FAILUREs |
| * NOTE: We cannot ensure the CQ won't overflow. |
| */ |
| entries += 16; |
| } |
| entries = roundup_pow_of_two(entries); |
| chp->cq.size_log2 = ilog2(entries); |
| |
| if (cxio_create_cq(&rhp->rdev, &chp->cq)) { |
| kfree(chp); |
| return ERR_PTR(-ENOMEM); |
| } |
| chp->rhp = rhp; |
| chp->ibcq.cqe = 1 << chp->cq.size_log2; |
| spin_lock_init(&chp->lock); |
| atomic_set(&chp->refcnt, 1); |
| init_waitqueue_head(&chp->wait); |
| insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid); |
| |
| if (ucontext) { |
| struct iwch_mm_entry *mm; |
| |
| mm = kmalloc(sizeof *mm, GFP_KERNEL); |
| if (!mm) { |
| iwch_destroy_cq(&chp->ibcq); |
| return ERR_PTR(-ENOMEM); |
| } |
| uresp.cqid = chp->cq.cqid; |
| uresp.size_log2 = chp->cq.size_log2; |
| spin_lock(&ucontext->mmap_lock); |
| uresp.key = ucontext->key; |
| ucontext->key += PAGE_SIZE; |
| spin_unlock(&ucontext->mmap_lock); |
| if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { |
| kfree(mm); |
| iwch_destroy_cq(&chp->ibcq); |
| return ERR_PTR(-EFAULT); |
| } |
| mm->key = uresp.key; |
| mm->addr = virt_to_phys(chp->cq.queue); |
| mm->len = PAGE_ALIGN((1UL << uresp.size_log2) * |
| sizeof (struct t3_cqe)); |
| insert_mmap(ucontext, mm); |
| } |
| PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n", |
| chp->cq.cqid, chp, (1 << chp->cq.size_log2), |
| (unsigned long long) chp->cq.dma_addr); |
| return &chp->ibcq; |
| } |
| |
| static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) |
| { |
| #ifdef notyet |
| struct iwch_cq *chp = to_iwch_cq(cq); |
| struct t3_cq oldcq, newcq; |
| int ret; |
| |
| PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe); |
| |
| /* We don't downsize... */ |
| if (cqe <= cq->cqe) |
| return 0; |
| |
| /* create new t3_cq with new size */ |
| cqe = roundup_pow_of_two(cqe+1); |
| newcq.size_log2 = ilog2(cqe); |
| |
| /* Dont allow resize to less than the current wce count */ |
| if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) { |
| return -ENOMEM; |
| } |
| |
| /* Quiesce all QPs using this CQ */ |
| ret = iwch_quiesce_qps(chp); |
| if (ret) { |
| return ret; |
| } |
| |
| ret = cxio_create_cq(&chp->rhp->rdev, &newcq); |
| if (ret) { |
| return ret; |
| } |
| |
| /* copy CQEs */ |
| memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) * |
| sizeof(struct t3_cqe)); |
| |
| /* old iwch_qp gets new t3_cq but keeps old cqid */ |
| oldcq = chp->cq; |
| chp->cq = newcq; |
| chp->cq.cqid = oldcq.cqid; |
| |
| /* resize new t3_cq to update the HW context */ |
| ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq); |
| if (ret) { |
| chp->cq = oldcq; |
| return ret; |
| } |
| chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1; |
| |
| /* destroy old t3_cq */ |
| oldcq.cqid = newcq.cqid; |
| ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq); |
| if (ret) { |
| printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n", |
| __func__, ret); |
| } |
| |
| /* add user hooks here */ |
| |
| /* resume qps */ |
| ret = iwch_resume_qps(chp); |
| return ret; |
| #else |
| return -ENOSYS; |
| #endif |
| } |
| |
| static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_cq *chp; |
| enum t3_cq_opcode cq_op; |
| int err; |
| unsigned long flag; |
| u32 rptr; |
| |
| chp = to_iwch_cq(ibcq); |
| rhp = chp->rhp; |
| if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) |
| cq_op = CQ_ARM_SE; |
| else |
| cq_op = CQ_ARM_AN; |
| if (chp->user_rptr_addr) { |
| if (get_user(rptr, chp->user_rptr_addr)) |
| return -EFAULT; |
| spin_lock_irqsave(&chp->lock, flag); |
| chp->cq.rptr = rptr; |
| } else |
| spin_lock_irqsave(&chp->lock, flag); |
| PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr); |
| err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0); |
| spin_unlock_irqrestore(&chp->lock, flag); |
| if (err < 0) |
| printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err, |
| chp->cq.cqid); |
| if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) |
| err = 0; |
| return err; |
| } |
| |
| static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) |
| { |
| int len = vma->vm_end - vma->vm_start; |
| u32 key = vma->vm_pgoff << PAGE_SHIFT; |
| struct cxio_rdev *rdev_p; |
| int ret = 0; |
| struct iwch_mm_entry *mm; |
| struct iwch_ucontext *ucontext; |
| u64 addr; |
| |
| PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, |
| key, len); |
| |
| if (vma->vm_start & (PAGE_SIZE-1)) { |
| return -EINVAL; |
| } |
| |
| rdev_p = &(to_iwch_dev(context->device)->rdev); |
| ucontext = to_iwch_ucontext(context); |
| |
| mm = remove_mmap(ucontext, key, len); |
| if (!mm) |
| return -EINVAL; |
| addr = mm->addr; |
| kfree(mm); |
| |
| if ((addr >= rdev_p->rnic_info.udbell_physbase) && |
| (addr < (rdev_p->rnic_info.udbell_physbase + |
| rdev_p->rnic_info.udbell_len))) { |
| |
| /* |
| * Map T3 DB register. |
| */ |
| if (vma->vm_flags & VM_READ) { |
| return -EPERM; |
| } |
| |
| vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); |
| vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; |
| vma->vm_flags &= ~VM_MAYREAD; |
| ret = io_remap_pfn_range(vma, vma->vm_start, |
| addr >> PAGE_SHIFT, |
| len, vma->vm_page_prot); |
| } else { |
| |
| /* |
| * Map WQ or CQ contig dma memory... |
| */ |
| ret = remap_pfn_range(vma, vma->vm_start, |
| addr >> PAGE_SHIFT, |
| len, vma->vm_page_prot); |
| } |
| |
| return ret; |
| } |
| |
| static int iwch_deallocate_pd(struct ib_pd *pd) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_pd *php; |
| |
| php = to_iwch_pd(pd); |
| rhp = php->rhp; |
| PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); |
| cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid); |
| kfree(php); |
| return 0; |
| } |
| |
| static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev, |
| struct ib_ucontext *context, |
| struct ib_udata *udata) |
| { |
| struct iwch_pd *php; |
| u32 pdid; |
| struct iwch_dev *rhp; |
| |
| PDBG("%s ibdev %p\n", __func__, ibdev); |
| rhp = (struct iwch_dev *) ibdev; |
| pdid = cxio_hal_get_pdid(rhp->rdev.rscp); |
| if (!pdid) |
| return ERR_PTR(-EINVAL); |
| php = kzalloc(sizeof(*php), GFP_KERNEL); |
| if (!php) { |
| cxio_hal_put_pdid(rhp->rdev.rscp, pdid); |
| return ERR_PTR(-ENOMEM); |
| } |
| php->pdid = pdid; |
| php->rhp = rhp; |
| if (context) { |
| if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) { |
| iwch_deallocate_pd(&php->ibpd); |
| return ERR_PTR(-EFAULT); |
| } |
| } |
| PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); |
| return &php->ibpd; |
| } |
| |
| static int iwch_dereg_mr(struct ib_mr *ib_mr) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_mr *mhp; |
| u32 mmid; |
| |
| PDBG("%s ib_mr %p\n", __func__, ib_mr); |
| /* There can be no memory windows */ |
| if (atomic_read(&ib_mr->usecnt)) |
| return -EINVAL; |
| |
| mhp = to_iwch_mr(ib_mr); |
| rhp = mhp->rhp; |
| mmid = mhp->attr.stag >> 8; |
| cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, |
| mhp->attr.pbl_addr); |
| iwch_free_pbl(mhp); |
| remove_handle(rhp, &rhp->mmidr, mmid); |
| if (mhp->kva) |
| kfree((void *) (unsigned long) mhp->kva); |
| if (mhp->umem) |
| ib_umem_release(mhp->umem); |
| PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); |
| kfree(mhp); |
| return 0; |
| } |
| |
| static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, |
| struct ib_phys_buf *buffer_list, |
| int num_phys_buf, |
| int acc, |
| u64 *iova_start) |
| { |
| __be64 *page_list; |
| int shift; |
| u64 total_size; |
| int npages; |
| struct iwch_dev *rhp; |
| struct iwch_pd *php; |
| struct iwch_mr *mhp; |
| int ret; |
| |
| PDBG("%s ib_pd %p\n", __func__, pd); |
| php = to_iwch_pd(pd); |
| rhp = php->rhp; |
| |
| mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
| if (!mhp) |
| return ERR_PTR(-ENOMEM); |
| |
| mhp->rhp = rhp; |
| |
| /* First check that we have enough alignment */ |
| if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) { |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| if (num_phys_buf > 1 && |
| ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) { |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start, |
| &total_size, &npages, &shift, &page_list); |
| if (ret) |
| goto err; |
| |
| ret = iwch_alloc_pbl(mhp, npages); |
| if (ret) { |
| kfree(page_list); |
| goto err_pbl; |
| } |
| |
| ret = iwch_write_pbl(mhp, page_list, npages, 0); |
| kfree(page_list); |
| if (ret) |
| goto err_pbl; |
| |
| mhp->attr.pdid = php->pdid; |
| mhp->attr.zbva = 0; |
| |
| mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
| mhp->attr.va_fbo = *iova_start; |
| mhp->attr.page_size = shift - 12; |
| |
| mhp->attr.len = (u32) total_size; |
| mhp->attr.pbl_size = npages; |
| ret = iwch_register_mem(rhp, php, mhp, shift); |
| if (ret) |
| goto err_pbl; |
| |
| return &mhp->ibmr; |
| |
| err_pbl: |
| iwch_free_pbl(mhp); |
| |
| err: |
| kfree(mhp); |
| return ERR_PTR(ret); |
| |
| } |
| |
| static int iwch_reregister_phys_mem(struct ib_mr *mr, |
| int mr_rereg_mask, |
| struct ib_pd *pd, |
| struct ib_phys_buf *buffer_list, |
| int num_phys_buf, |
| int acc, u64 * iova_start) |
| { |
| |
| struct iwch_mr mh, *mhp; |
| struct iwch_pd *php; |
| struct iwch_dev *rhp; |
| __be64 *page_list = NULL; |
| int shift = 0; |
| u64 total_size; |
| int npages; |
| int ret; |
| |
| PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd); |
| |
| /* There can be no memory windows */ |
| if (atomic_read(&mr->usecnt)) |
| return -EINVAL; |
| |
| mhp = to_iwch_mr(mr); |
| rhp = mhp->rhp; |
| php = to_iwch_pd(mr->pd); |
| |
| /* make sure we are on the same adapter */ |
| if (rhp != php->rhp) |
| return -EINVAL; |
| |
| memcpy(&mh, mhp, sizeof *mhp); |
| |
| if (mr_rereg_mask & IB_MR_REREG_PD) |
| php = to_iwch_pd(pd); |
| if (mr_rereg_mask & IB_MR_REREG_ACCESS) |
| mh.attr.perms = iwch_ib_to_tpt_access(acc); |
| if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
| ret = build_phys_page_list(buffer_list, num_phys_buf, |
| iova_start, |
| &total_size, &npages, |
| &shift, &page_list); |
| if (ret) |
| return ret; |
| } |
| |
| ret = iwch_reregister_mem(rhp, php, &mh, shift, npages); |
| kfree(page_list); |
| if (ret) { |
| return ret; |
| } |
| if (mr_rereg_mask & IB_MR_REREG_PD) |
| mhp->attr.pdid = php->pdid; |
| if (mr_rereg_mask & IB_MR_REREG_ACCESS) |
| mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
| if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
| mhp->attr.zbva = 0; |
| mhp->attr.va_fbo = *iova_start; |
| mhp->attr.page_size = shift - 12; |
| mhp->attr.len = (u32) total_size; |
| mhp->attr.pbl_size = npages; |
| } |
| |
| return 0; |
| } |
| |
| |
| static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
| u64 virt, int acc, struct ib_udata *udata) |
| { |
| __be64 *pages; |
| int shift, n, len; |
| int i, j, k; |
| int err = 0; |
| struct ib_umem_chunk *chunk; |
| struct iwch_dev *rhp; |
| struct iwch_pd *php; |
| struct iwch_mr *mhp; |
| struct iwch_reg_user_mr_resp uresp; |
| |
| PDBG("%s ib_pd %p\n", __func__, pd); |
| |
| php = to_iwch_pd(pd); |
| rhp = php->rhp; |
| mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
| if (!mhp) |
| return ERR_PTR(-ENOMEM); |
| |
| mhp->rhp = rhp; |
| |
| mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
| if (IS_ERR(mhp->umem)) { |
| err = PTR_ERR(mhp->umem); |
| kfree(mhp); |
| return ERR_PTR(err); |
| } |
| |
| shift = ffs(mhp->umem->page_size) - 1; |
| |
| n = 0; |
| list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
| n += chunk->nents; |
| |
| err = iwch_alloc_pbl(mhp, n); |
| if (err) |
| goto err; |
| |
| pages = (__be64 *) __get_free_page(GFP_KERNEL); |
| if (!pages) { |
| err = -ENOMEM; |
| goto err_pbl; |
| } |
| |
| i = n = 0; |
| |
| list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
| for (j = 0; j < chunk->nmap; ++j) { |
| len = sg_dma_len(&chunk->page_list[j]) >> shift; |
| for (k = 0; k < len; ++k) { |
| pages[i++] = cpu_to_be64(sg_dma_address( |
| &chunk->page_list[j]) + |
| mhp->umem->page_size * k); |
| if (i == PAGE_SIZE / sizeof *pages) { |
| err = iwch_write_pbl(mhp, pages, i, n); |
| if (err) |
| goto pbl_done; |
| n += i; |
| i = 0; |
| } |
| } |
| } |
| |
| if (i) |
| err = iwch_write_pbl(mhp, pages, i, n); |
| |
| pbl_done: |
| free_page((unsigned long) pages); |
| if (err) |
| goto err_pbl; |
| |
| mhp->attr.pdid = php->pdid; |
| mhp->attr.zbva = 0; |
| mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
| mhp->attr.va_fbo = virt; |
| mhp->attr.page_size = shift - 12; |
| mhp->attr.len = (u32) length; |
| |
| err = iwch_register_mem(rhp, php, mhp, shift); |
| if (err) |
| goto err_pbl; |
| |
| if (udata && !t3a_device(rhp)) { |
| uresp.pbl_addr = (mhp->attr.pbl_addr - |
| rhp->rdev.rnic_info.pbl_base) >> 3; |
| PDBG("%s user resp pbl_addr 0x%x\n", __func__, |
| uresp.pbl_addr); |
| |
| if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { |
| iwch_dereg_mr(&mhp->ibmr); |
| err = -EFAULT; |
| goto err; |
| } |
| } |
| |
| return &mhp->ibmr; |
| |
| err_pbl: |
| iwch_free_pbl(mhp); |
| |
| err: |
| ib_umem_release(mhp->umem); |
| kfree(mhp); |
| return ERR_PTR(err); |
| } |
| |
| static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc) |
| { |
| struct ib_phys_buf bl; |
| u64 kva; |
| struct ib_mr *ibmr; |
| |
| PDBG("%s ib_pd %p\n", __func__, pd); |
| |
| /* |
| * T3 only supports 32 bits of size. |
| */ |
| bl.size = 0xffffffff; |
| bl.addr = 0; |
| kva = 0; |
| ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva); |
| return ibmr; |
| } |
| |
| static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_pd *php; |
| struct iwch_mw *mhp; |
| u32 mmid; |
| u32 stag = 0; |
| int ret; |
| |
| php = to_iwch_pd(pd); |
| rhp = php->rhp; |
| mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
| if (!mhp) |
| return ERR_PTR(-ENOMEM); |
| ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid); |
| if (ret) { |
| kfree(mhp); |
| return ERR_PTR(ret); |
| } |
| mhp->rhp = rhp; |
| mhp->attr.pdid = php->pdid; |
| mhp->attr.type = TPT_MW; |
| mhp->attr.stag = stag; |
| mmid = (stag) >> 8; |
| insert_handle(rhp, &rhp->mmidr, mhp, mmid); |
| PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
| return &(mhp->ibmw); |
| } |
| |
| static int iwch_dealloc_mw(struct ib_mw *mw) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_mw *mhp; |
| u32 mmid; |
| |
| mhp = to_iwch_mw(mw); |
| rhp = mhp->rhp; |
| mmid = (mw->rkey) >> 8; |
| cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); |
| remove_handle(rhp, &rhp->mmidr, mmid); |
| kfree(mhp); |
| PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); |
| return 0; |
| } |
| |
| static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_pd *php; |
| struct iwch_mr *mhp; |
| u32 mmid; |
| u32 stag = 0; |
| int ret; |
| |
| php = to_iwch_pd(pd); |
| rhp = php->rhp; |
| mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
| if (!mhp) |
| return ERR_PTR(-ENOMEM); |
| |
| mhp->rhp = rhp; |
| ret = iwch_alloc_pbl(mhp, pbl_depth); |
| if (ret) { |
| kfree(mhp); |
| return ERR_PTR(ret); |
| } |
| mhp->attr.pbl_size = pbl_depth; |
| ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid, |
| mhp->attr.pbl_size, mhp->attr.pbl_addr); |
| if (ret) { |
| iwch_free_pbl(mhp); |
| kfree(mhp); |
| return ERR_PTR(ret); |
| } |
| mhp->attr.pdid = php->pdid; |
| mhp->attr.type = TPT_NON_SHARED_MR; |
| mhp->attr.stag = stag; |
| mhp->attr.state = 1; |
| mmid = (stag) >> 8; |
| mhp->ibmr.rkey = mhp->ibmr.lkey = stag; |
| insert_handle(rhp, &rhp->mmidr, mhp, mmid); |
| PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
| return &(mhp->ibmr); |
| } |
| |
| static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl( |
| struct ib_device *device, |
| int page_list_len) |
| { |
| struct ib_fast_reg_page_list *page_list; |
| |
| page_list = kmalloc(sizeof *page_list + page_list_len * sizeof(u64), |
| GFP_KERNEL); |
| if (!page_list) |
| return ERR_PTR(-ENOMEM); |
| |
| page_list->page_list = (u64 *)(page_list + 1); |
| page_list->max_page_list_len = page_list_len; |
| |
| return page_list; |
| } |
| |
| static void iwch_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list) |
| { |
| kfree(page_list); |
| } |
| |
| static int iwch_destroy_qp(struct ib_qp *ib_qp) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_qp *qhp; |
| struct iwch_qp_attributes attrs; |
| struct iwch_ucontext *ucontext; |
| |
| qhp = to_iwch_qp(ib_qp); |
| rhp = qhp->rhp; |
| |
| attrs.next_state = IWCH_QP_STATE_ERROR; |
| iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0); |
| wait_event(qhp->wait, !qhp->ep); |
| |
| remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid); |
| |
| atomic_dec(&qhp->refcnt); |
| wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); |
| |
| ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context) |
| : NULL; |
| cxio_destroy_qp(&rhp->rdev, &qhp->wq, |
| ucontext ? &ucontext->uctx : &rhp->rdev.uctx); |
| |
| PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__, |
| ib_qp, qhp->wq.qpid, qhp); |
| kfree(qhp); |
| return 0; |
| } |
| |
| static struct ib_qp *iwch_create_qp(struct ib_pd *pd, |
| struct ib_qp_init_attr *attrs, |
| struct ib_udata *udata) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_qp *qhp; |
| struct iwch_pd *php; |
| struct iwch_cq *schp; |
| struct iwch_cq *rchp; |
| struct iwch_create_qp_resp uresp; |
| int wqsize, sqsize, rqsize; |
| struct iwch_ucontext *ucontext; |
| |
| PDBG("%s ib_pd %p\n", __func__, pd); |
| if (attrs->qp_type != IB_QPT_RC) |
| return ERR_PTR(-EINVAL); |
| php = to_iwch_pd(pd); |
| rhp = php->rhp; |
| schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid); |
| rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid); |
| if (!schp || !rchp) |
| return ERR_PTR(-EINVAL); |
| |
| /* The RQT size must be # of entries + 1 rounded up to a power of two */ |
| rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr); |
| if (rqsize == attrs->cap.max_recv_wr) |
| rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1); |
| |
| /* T3 doesn't support RQT depth < 16 */ |
| if (rqsize < 16) |
| rqsize = 16; |
| |
| if (rqsize > T3_MAX_RQ_SIZE) |
| return ERR_PTR(-EINVAL); |
| |
| if (attrs->cap.max_inline_data > T3_MAX_INLINE) |
| return ERR_PTR(-EINVAL); |
| |
| /* |
| * NOTE: The SQ and total WQ sizes don't need to be |
| * a power of two. However, all the code assumes |
| * they are. EG: Q_FREECNT() and friends. |
| */ |
| sqsize = roundup_pow_of_two(attrs->cap.max_send_wr); |
| wqsize = roundup_pow_of_two(rqsize + sqsize); |
| |
| /* |
| * Kernel users need more wq space for fastreg WRs which can take |
| * 2 WR fragments. |
| */ |
| ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL; |
| if (!ucontext && wqsize < (rqsize + (2 * sqsize))) |
| wqsize = roundup_pow_of_two(rqsize + |
| roundup_pow_of_two(attrs->cap.max_send_wr * 2)); |
| PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__, |
| wqsize, sqsize, rqsize); |
| qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); |
| if (!qhp) |
| return ERR_PTR(-ENOMEM); |
| qhp->wq.size_log2 = ilog2(wqsize); |
| qhp->wq.rq_size_log2 = ilog2(rqsize); |
| qhp->wq.sq_size_log2 = ilog2(sqsize); |
| if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq, |
| ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) { |
| kfree(qhp); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| attrs->cap.max_recv_wr = rqsize - 1; |
| attrs->cap.max_send_wr = sqsize; |
| attrs->cap.max_inline_data = T3_MAX_INLINE; |
| |
| qhp->rhp = rhp; |
| qhp->attr.pd = php->pdid; |
| qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; |
| qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid; |
| qhp->attr.sq_num_entries = attrs->cap.max_send_wr; |
| qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; |
| qhp->attr.sq_max_sges = attrs->cap.max_send_sge; |
| qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; |
| qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; |
| qhp->attr.state = IWCH_QP_STATE_IDLE; |
| qhp->attr.next_state = IWCH_QP_STATE_IDLE; |
| |
| /* |
| * XXX - These don't get passed in from the openib user |
| * at create time. The CM sets them via a QP modify. |
| * Need to fix... I think the CM should |
| */ |
| qhp->attr.enable_rdma_read = 1; |
| qhp->attr.enable_rdma_write = 1; |
| qhp->attr.enable_bind = 1; |
| qhp->attr.max_ord = 1; |
| qhp->attr.max_ird = 1; |
| |
| spin_lock_init(&qhp->lock); |
| init_waitqueue_head(&qhp->wait); |
| atomic_set(&qhp->refcnt, 1); |
| insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid); |
| |
| if (udata) { |
| |
| struct iwch_mm_entry *mm1, *mm2; |
| |
| mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); |
| if (!mm1) { |
| iwch_destroy_qp(&qhp->ibqp); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); |
| if (!mm2) { |
| kfree(mm1); |
| iwch_destroy_qp(&qhp->ibqp); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| uresp.qpid = qhp->wq.qpid; |
| uresp.size_log2 = qhp->wq.size_log2; |
| uresp.sq_size_log2 = qhp->wq.sq_size_log2; |
| uresp.rq_size_log2 = qhp->wq.rq_size_log2; |
| spin_lock(&ucontext->mmap_lock); |
| uresp.key = ucontext->key; |
| ucontext->key += PAGE_SIZE; |
| uresp.db_key = ucontext->key; |
| ucontext->key += PAGE_SIZE; |
| spin_unlock(&ucontext->mmap_lock); |
| if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { |
| kfree(mm1); |
| kfree(mm2); |
| iwch_destroy_qp(&qhp->ibqp); |
| return ERR_PTR(-EFAULT); |
| } |
| mm1->key = uresp.key; |
| mm1->addr = virt_to_phys(qhp->wq.queue); |
| mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr)); |
| insert_mmap(ucontext, mm1); |
| mm2->key = uresp.db_key; |
| mm2->addr = qhp->wq.udb & PAGE_MASK; |
| mm2->len = PAGE_SIZE; |
| insert_mmap(ucontext, mm2); |
| } |
| qhp->ibqp.qp_num = qhp->wq.qpid; |
| init_timer(&(qhp->timer)); |
| PDBG("%s sq_num_entries %d, rq_num_entries %d " |
| "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n", |
| __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, |
| qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr, |
| 1 << qhp->wq.size_log2); |
| return &qhp->ibqp; |
| } |
| |
| static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, |
| int attr_mask, struct ib_udata *udata) |
| { |
| struct iwch_dev *rhp; |
| struct iwch_qp *qhp; |
| enum iwch_qp_attr_mask mask = 0; |
| struct iwch_qp_attributes attrs; |
| |
| PDBG("%s ib_qp %p\n", __func__, ibqp); |
| |
| /* iwarp does not support the RTR state */ |
| if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) |
| attr_mask &= ~IB_QP_STATE; |
| |
| /* Make sure we still have something left to do */ |
| if (!attr_mask) |
| return 0; |
| |
| memset(&attrs, 0, sizeof attrs); |
| qhp = to_iwch_qp(ibqp); |
| rhp = qhp->rhp; |
| |
| attrs.next_state = iwch_convert_state(attr->qp_state); |
| attrs.enable_rdma_read = (attr->qp_access_flags & |
| IB_ACCESS_REMOTE_READ) ? 1 : 0; |
| attrs.enable_rdma_write = (attr->qp_access_flags & |
| IB_ACCESS_REMOTE_WRITE) ? 1 : 0; |
| attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; |
| |
| |
| mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0; |
| mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? |
| (IWCH_QP_ATTR_ENABLE_RDMA_READ | |
| IWCH_QP_ATTR_ENABLE_RDMA_WRITE | |
| IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0; |
| |
| return iwch_modify_qp(rhp, qhp, mask, &attrs, 0); |
| } |
| |
| void iwch_qp_add_ref(struct ib_qp *qp) |
| { |
| PDBG("%s ib_qp %p\n", __func__, qp); |
| atomic_inc(&(to_iwch_qp(qp)->refcnt)); |
| } |
| |
| void iwch_qp_rem_ref(struct ib_qp *qp) |
| { |
| PDBG("%s ib_qp %p\n", __func__, qp); |
| if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt))) |
| wake_up(&(to_iwch_qp(qp)->wait)); |
| } |
| |
| static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn) |
| { |
| PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); |
| return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn); |
| } |
| |
| |
| static int iwch_query_pkey(struct ib_device *ibdev, |
| u8 port, u16 index, u16 * pkey) |
| { |
| PDBG("%s ibdev %p\n", __func__, ibdev); |
| *pkey = 0; |
| return 0; |
| } |
| |
| static int iwch_query_gid(struct ib_device *ibdev, u8 port, |
| int index, union ib_gid *gid) |
| { |
| struct iwch_dev *dev; |
| |
| PDBG("%s ibdev %p, port %d, index %d, gid %p\n", |
| __func__, ibdev, port, index, gid); |
| dev = to_iwch_dev(ibdev); |
| BUG_ON(port == 0 || port > 2); |
| memset(&(gid->raw[0]), 0, sizeof(gid->raw)); |
| memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6); |
| return 0; |
| } |
| |
| static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev) |
| { |
| struct ethtool_drvinfo info; |
| struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
| char *cp, *next; |
| unsigned fw_maj, fw_min, fw_mic; |
| |
| rtnl_lock(); |
| lldev->ethtool_ops->get_drvinfo(lldev, &info); |
| rtnl_unlock(); |
| |
| next = info.fw_version + 1; |
| cp = strsep(&next, "."); |
| sscanf(cp, "%i", &fw_maj); |
| cp = strsep(&next, "."); |
| sscanf(cp, "%i", &fw_min); |
| cp = strsep(&next, "."); |
| sscanf(cp, "%i", &fw_mic); |
| |
| return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) | |
| (fw_mic & 0xffff); |
| } |
| |
| static int iwch_query_device(struct ib_device *ibdev, |
| struct ib_device_attr *props) |
| { |
| |
| struct iwch_dev *dev; |
| PDBG("%s ibdev %p\n", __func__, ibdev); |
| |
| dev = to_iwch_dev(ibdev); |
| memset(props, 0, sizeof *props); |
| memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); |
| props->hw_ver = dev->rdev.t3cdev_p->type; |
| props->fw_ver = fw_vers_string_to_u64(dev); |
| props->device_cap_flags = dev->device_cap_flags; |
| props->page_size_cap = dev->attr.mem_pgsizes_bitmask; |
| props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor; |
| props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device; |
| props->max_mr_size = dev->attr.max_mr_size; |
| props->max_qp = dev->attr.max_qps; |
| props->max_qp_wr = dev->attr.max_wrs; |
| props->max_sge = dev->attr.max_sge_per_wr; |
| props->max_sge_rd = 1; |
| props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp; |
| props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp; |
| props->max_cq = dev->attr.max_cqs; |
| props->max_cqe = dev->attr.max_cqes_per_cq; |
| props->max_mr = dev->attr.max_mem_regs; |
| props->max_pd = dev->attr.max_pds; |
| props->local_ca_ack_delay = 0; |
| props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH; |
| |
| return 0; |
| } |
| |
| static int iwch_query_port(struct ib_device *ibdev, |
| u8 port, struct ib_port_attr *props) |
| { |
| PDBG("%s ibdev %p\n", __func__, ibdev); |
| props->max_mtu = IB_MTU_4096; |
| props->lid = 0; |
| props->lmc = 0; |
| props->sm_lid = 0; |
| props->sm_sl = 0; |
| props->state = IB_PORT_ACTIVE; |
| props->phys_state = 0; |
| props->port_cap_flags = |
| IB_PORT_CM_SUP | |
| IB_PORT_SNMP_TUNNEL_SUP | |
| IB_PORT_REINIT_SUP | |
| IB_PORT_DEVICE_MGMT_SUP | |
| IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; |
| props->gid_tbl_len = 1; |
| props->pkey_tbl_len = 1; |
| props->qkey_viol_cntr = 0; |
| props->active_width = 2; |
| props->active_speed = 2; |
| props->max_msg_sz = -1; |
| |
| return 0; |
| } |
| |
| static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
| ibdev.dev); |
| PDBG("%s dev 0x%p\n", __func__, dev); |
| return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type); |
| } |
| |
| static int fw_supports_fastreg(struct iwch_dev *iwch_dev) |
| { |
| struct ethtool_drvinfo info; |
| struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
| char *cp, *next; |
| unsigned fw_maj, fw_min; |
| |
| rtnl_lock(); |
| lldev->ethtool_ops->get_drvinfo(lldev, &info); |
| rtnl_unlock(); |
| |
| next = info.fw_version+1; |
| cp = strsep(&next, "."); |
| sscanf(cp, "%i", &fw_maj); |
| cp = strsep(&next, "."); |
| sscanf(cp, "%i", &fw_min); |
| |
| PDBG("%s maj %u min %u\n", __func__, fw_maj, fw_min); |
| |
| return fw_maj > 6 || (fw_maj == 6 && fw_min > 0); |
| } |
| |
| static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
| ibdev.dev); |
| struct ethtool_drvinfo info; |
| struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
| |
| PDBG("%s dev 0x%p\n", __func__, dev); |
| rtnl_lock(); |
| lldev->ethtool_ops->get_drvinfo(lldev, &info); |
| rtnl_unlock(); |
| return sprintf(buf, "%s\n", info.fw_version); |
| } |
| |
| static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
| ibdev.dev); |
| struct ethtool_drvinfo info; |
| struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
| |
| PDBG("%s dev 0x%p\n", __func__, dev); |
| rtnl_lock(); |
| lldev->ethtool_ops->get_drvinfo(lldev, &info); |
| rtnl_unlock(); |
| return sprintf(buf, "%s\n", info.driver); |
| } |
| |
| static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
| ibdev.dev); |
| PDBG("%s dev 0x%p\n", __func__, dev); |
| return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor, |
| iwch_dev->rdev.rnic_info.pdev->device); |
| } |
| |
| static int iwch_get_mib(struct ib_device *ibdev, |
| union rdma_protocol_stats *stats) |
| { |
| struct iwch_dev *dev; |
| struct tp_mib_stats m; |
| int ret; |
| |
| PDBG("%s ibdev %p\n", __func__, ibdev); |
| dev = to_iwch_dev(ibdev); |
| ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m); |
| if (ret) |
| return -ENOSYS; |
| |
| memset(stats, 0, sizeof *stats); |
| stats->iw.ipInReceives = ((u64) m.ipInReceive_hi << 32) + |
| m.ipInReceive_lo; |
| stats->iw.ipInHdrErrors = ((u64) m.ipInHdrErrors_hi << 32) + |
| m.ipInHdrErrors_lo; |
| stats->iw.ipInAddrErrors = ((u64) m.ipInAddrErrors_hi << 32) + |
| m.ipInAddrErrors_lo; |
| stats->iw.ipInUnknownProtos = ((u64) m.ipInUnknownProtos_hi << 32) + |
| m.ipInUnknownProtos_lo; |
| stats->iw.ipInDiscards = ((u64) m.ipInDiscards_hi << 32) + |
| m.ipInDiscards_lo; |
| stats->iw.ipInDelivers = ((u64) m.ipInDelivers_hi << 32) + |
| m.ipInDelivers_lo; |
| stats->iw.ipOutRequests = ((u64) m.ipOutRequests_hi << 32) + |
| m.ipOutRequests_lo; |
| stats->iw.ipOutDiscards = ((u64) m.ipOutDiscards_hi << 32) + |
| m.ipOutDiscards_lo; |
| stats->iw.ipOutNoRoutes = ((u64) m.ipOutNoRoutes_hi << 32) + |
| m.ipOutNoRoutes_lo; |
| stats->iw.ipReasmTimeout = (u64) m.ipReasmTimeout; |
| stats->iw.ipReasmReqds = (u64) m.ipReasmReqds; |
| stats->iw.ipReasmOKs = (u64) m.ipReasmOKs; |
| stats->iw.ipReasmFails = (u64) m.ipReasmFails; |
| stats->iw.tcpActiveOpens = (u64) m.tcpActiveOpens; |
| stats->iw.tcpPassiveOpens = (u64) m.tcpPassiveOpens; |
| stats->iw.tcpAttemptFails = (u64) m.tcpAttemptFails; |
| stats->iw.tcpEstabResets = (u64) m.tcpEstabResets; |
| stats->iw.tcpOutRsts = (u64) m.tcpOutRsts; |
| stats->iw.tcpCurrEstab = (u64) m.tcpCurrEstab; |
| stats->iw.tcpInSegs = ((u64) m.tcpInSegs_hi << 32) + |
| m.tcpInSegs_lo; |
| stats->iw.tcpOutSegs = ((u64) m.tcpOutSegs_hi << 32) + |
| m.tcpOutSegs_lo; |
| stats->iw.tcpRetransSegs = ((u64) m.tcpRetransSeg_hi << 32) + |
| m.tcpRetransSeg_lo; |
| stats->iw.tcpInErrs = ((u64) m.tcpInErrs_hi << 32) + |
| m.tcpInErrs_lo; |
| stats->iw.tcpRtoMin = (u64) m.tcpRtoMin; |
| stats->iw.tcpRtoMax = (u64) m.tcpRtoMax; |
| return 0; |
| } |
| |
| static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); |
| static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
| static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
| |
| static struct device_attribute *iwch_class_attributes[] = { |
| &dev_attr_hw_rev, |
| &dev_attr_fw_ver, |
| &dev_attr_hca_type, |
| &dev_attr_board_id, |
| }; |
| |
| int iwch_register_device(struct iwch_dev *dev) |
| { |
| int ret; |
| int i; |
| |
| PDBG("%s iwch_dev %p\n", __func__, dev); |
| strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX); |
| memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); |
| memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); |
| dev->ibdev.owner = THIS_MODULE; |
| dev->device_cap_flags = IB_DEVICE_ZERO_STAG | |
| IB_DEVICE_MEM_WINDOW; |
| if (fw_supports_fastreg(dev)) |
| dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; |
| |
| dev->ibdev.uverbs_cmd_mask = |
| (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | |
| (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | |
| (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | |
| (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | |
| (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | |
| (1ull << IB_USER_VERBS_CMD_REG_MR) | |
| (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | |
| (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
| (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | |
| (1ull << IB_USER_VERBS_CMD_CREATE_QP) | |
| (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
| (1ull << IB_USER_VERBS_CMD_POLL_CQ) | |
| (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
| (1ull << IB_USER_VERBS_CMD_POST_SEND) | |
| (1ull << IB_USER_VERBS_CMD_POST_RECV); |
| dev->ibdev.node_type = RDMA_NODE_RNIC; |
| memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); |
| dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; |
| dev->ibdev.num_comp_vectors = 1; |
| dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev); |
| dev->ibdev.query_device = iwch_query_device; |
| dev->ibdev.query_port = iwch_query_port; |
| dev->ibdev.modify_port = iwch_modify_port; |
| dev->ibdev.query_pkey = iwch_query_pkey; |
| dev->ibdev.query_gid = iwch_query_gid; |
| dev->ibdev.alloc_ucontext = iwch_alloc_ucontext; |
| dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext; |
| dev->ibdev.mmap = iwch_mmap; |
| dev->ibdev.alloc_pd = iwch_allocate_pd; |
| dev->ibdev.dealloc_pd = iwch_deallocate_pd; |
| dev->ibdev.create_ah = iwch_ah_create; |
| dev->ibdev.destroy_ah = iwch_ah_destroy; |
| dev->ibdev.create_qp = iwch_create_qp; |
| dev->ibdev.modify_qp = iwch_ib_modify_qp; |
| dev->ibdev.destroy_qp = iwch_destroy_qp; |
| dev->ibdev.create_cq = iwch_create_cq; |
| dev->ibdev.destroy_cq = iwch_destroy_cq; |
| dev->ibdev.resize_cq = iwch_resize_cq; |
| dev->ibdev.poll_cq = iwch_poll_cq; |
| dev->ibdev.get_dma_mr = iwch_get_dma_mr; |
| dev->ibdev.reg_phys_mr = iwch_register_phys_mem; |
| dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem; |
| dev->ibdev.reg_user_mr = iwch_reg_user_mr; |
| dev->ibdev.dereg_mr = iwch_dereg_mr; |
| dev->ibdev.alloc_mw = iwch_alloc_mw; |
| dev->ibdev.bind_mw = iwch_bind_mw; |
| dev->ibdev.dealloc_mw = iwch_dealloc_mw; |
| dev->ibdev.alloc_fast_reg_mr = iwch_alloc_fast_reg_mr; |
| dev->ibdev.alloc_fast_reg_page_list = iwch_alloc_fastreg_pbl; |
| dev->ibdev.free_fast_reg_page_list = iwch_free_fastreg_pbl; |
| dev->ibdev.attach_mcast = iwch_multicast_attach; |
| dev->ibdev.detach_mcast = iwch_multicast_detach; |
| dev->ibdev.process_mad = iwch_process_mad; |
| dev->ibdev.req_notify_cq = iwch_arm_cq; |
| dev->ibdev.post_send = iwch_post_send; |
| dev->ibdev.post_recv = iwch_post_receive; |
| dev->ibdev.get_protocol_stats = iwch_get_mib; |
| |
| dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); |
| if (!dev->ibdev.iwcm) |
| return -ENOMEM; |
| |
| dev->ibdev.iwcm->connect = iwch_connect; |
| dev->ibdev.iwcm->accept = iwch_accept_cr; |
| dev->ibdev.iwcm->reject = iwch_reject_cr; |
| dev->ibdev.iwcm->create_listen = iwch_create_listen; |
| dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen; |
| dev->ibdev.iwcm->add_ref = iwch_qp_add_ref; |
| dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref; |
| dev->ibdev.iwcm->get_qp = iwch_get_qp; |
| |
| ret = ib_register_device(&dev->ibdev); |
| if (ret) |
| goto bail1; |
| |
| for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) { |
| ret = device_create_file(&dev->ibdev.dev, |
| iwch_class_attributes[i]); |
| if (ret) { |
| goto bail2; |
| } |
| } |
| return 0; |
| bail2: |
| ib_unregister_device(&dev->ibdev); |
| bail1: |
| return ret; |
| } |
| |
| void iwch_unregister_device(struct iwch_dev *dev) |
| { |
| int i; |
| |
| PDBG("%s iwch_dev %p\n", __func__, dev); |
| for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) |
| device_remove_file(&dev->ibdev.dev, |
| iwch_class_attributes[i]); |
| ib_unregister_device(&dev->ibdev); |
| return; |
| } |