diff options
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_provider.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch_provider.c | 1471 |
1 files changed, 0 insertions, 1471 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c deleted file mode 100644 index e87f2201b220..000000000000 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ /dev/null @@ -1,1471 +0,0 @@ -/* - * 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/sched.h> -#include <linux/spinlock.h> -#include <linux/ethtool.h> -#include <linux/rtnetlink.h> -#include <linux/inetdevice.h> -#include <linux/slab.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 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; - static int warned; - size_t resplen; - - 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, !ucontext)) { - kfree(chp); - return ERR_PTR(-ENOMEM); - } - chp->rhp = rhp; - chp->ibcq.cqe = 1 << chp->cq.size_log2; - spin_lock_init(&chp->lock); - spin_lock_init(&chp->comp_handler_lock); - atomic_set(&chp->refcnt, 1); - init_waitqueue_head(&chp->wait); - if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) { - cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); - kfree(chp); - return ERR_PTR(-ENOMEM); - } - - 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); - mm->key = uresp.key; - mm->addr = virt_to_phys(chp->cq.queue); - if (udata->outlen < sizeof uresp) { - if (!warned++) - printk(KERN_WARNING MOD "Warning - " - "downlevel libcxgb3 (non-fatal).\n"); - mm->len = PAGE_ALIGN((1UL << uresp.size_log2) * - sizeof(struct t3_cqe)); - resplen = sizeof(struct iwch_create_cq_resp_v0); - } else { - mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) * - sizeof(struct t3_cqe)); - uresp.memsize = mm->len; - resplen = sizeof uresp; - } - if (ib_copy_to_udata(udata, &uresp, resplen)) { - kfree(mm); - iwch_destroy_cq(&chp->ibcq); - return ERR_PTR(-EFAULT); - } - 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 = 0; - 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, enum ib_mw_type type) -{ - struct iwch_dev *rhp; - struct iwch_pd *php; - struct iwch_mw *mhp; - u32 mmid; - u32 stag = 0; - int ret; - - if (type != IB_MW_TYPE_1) - return ERR_PTR(-EINVAL); - - 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; - mhp->ibmw.rkey = stag; - if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) { - cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); - kfree(mhp); - return ERR_PTR(-ENOMEM); - } - 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); - PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); - kfree(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 = 0; - - php = to_iwch_pd(pd); - rhp = php->rhp; - mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); - if (!mhp) - goto err; - - mhp->rhp = rhp; - ret = iwch_alloc_pbl(mhp, pbl_depth); - if (ret) - goto err1; - 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) - goto err2; - 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; - if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) - goto err3; - - PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); - return &(mhp->ibmr); -err3: - cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size, - mhp->attr.pbl_addr); -err2: - iwch_free_pbl(mhp); -err1: - kfree(mhp); -err: - return ERR_PTR(ret); -} - -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); - - if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) { - cxio_destroy_qp(&rhp->rdev, &qhp->wq, - ucontext ? &ucontext->uctx : &rhp->rdev.uctx); - kfree(qhp); - return ERR_PTR(-ENOMEM); - } - - 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 rq_addr 0x%x\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, qhp->wq.rq_addr); - 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; - - lldev->ethtool_ops->get_drvinfo(lldev, &info); - - 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) -{ - struct iwch_dev *dev; - struct net_device *netdev; - struct in_device *inetdev; - - PDBG("%s ibdev %p\n", __func__, ibdev); - - dev = to_iwch_dev(ibdev); - netdev = dev->rdev.port_info.lldevs[port-1]; - - memset(props, 0, sizeof(struct ib_port_attr)); - props->max_mtu = IB_MTU_4096; - if (netdev->mtu >= 4096) - props->active_mtu = IB_MTU_4096; - else if (netdev->mtu >= 2048) - props->active_mtu = IB_MTU_2048; - else if (netdev->mtu >= 1024) - props->active_mtu = IB_MTU_1024; - else if (netdev->mtu >= 512) - props->active_mtu = IB_MTU_512; - else - props->active_mtu = IB_MTU_256; - - if (!netif_carrier_ok(netdev)) - props->state = IB_PORT_DOWN; - else { - inetdev = in_dev_get(netdev); - if (inetdev) { - if (inetdev->ifa_list) - props->state = IB_PORT_ACTIVE; - else - props->state = IB_PORT_INIT; - in_dev_put(inetdev); - } else - props->state = IB_PORT_INIT; - } - - 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->active_width = 2; - props->active_speed = IB_SPEED_DDR; - 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 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); - lldev->ethtool_ops->get_drvinfo(lldev, &info); - 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); - lldev->ethtool_ops->get_drvinfo(lldev, &info); - 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_LOCAL_DMA_LKEY | - IB_DEVICE_MEM_WINDOW | - IB_DEVICE_MEM_MGT_EXTENSIONS; - - /* cxgb3 supports STag 0. */ - dev->ibdev.local_dma_lkey = 0; - - 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.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.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION; - - 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, NULL); - 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: - kfree(dev->ibdev.iwcm); - 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); - kfree(dev->ibdev.iwcm); - return; -} |