/*- * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB * * Copyright (c) 2015 - 2023 Intel Corporation * * 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 * OpenFabrics.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 "irdma_main.h" /** * irdma_query_device - get device attributes * @ibdev: device pointer from stack * @props: returning device attributes * @udata: user data */ static int irdma_query_device(struct ib_device *ibdev, struct ib_device_attr *props, struct ib_udata *udata) { struct irdma_device *iwdev = to_iwdev(ibdev); struct irdma_pci_f *rf = iwdev->rf; struct pci_dev *pcidev = iwdev->rf->pcidev; struct irdma_hw_attrs *hw_attrs = &rf->sc_dev.hw_attrs; if (udata->inlen || udata->outlen) return -EINVAL; memset(props, 0, sizeof(*props)); addrconf_addr_eui48((u8 *)&props->sys_image_guid, if_getlladdr(iwdev->netdev)); props->fw_ver = (u64)irdma_fw_major_ver(&rf->sc_dev) << 32 | irdma_fw_minor_ver(&rf->sc_dev); props->device_cap_flags = IB_DEVICE_MEM_WINDOW | IB_DEVICE_MEM_MGT_EXTENSIONS; props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; props->vendor_id = pcidev->vendor; props->vendor_part_id = pcidev->device; props->hw_ver = pcidev->revision; props->page_size_cap = hw_attrs->page_size_cap; props->max_mr_size = hw_attrs->max_mr_size; props->max_qp = rf->max_qp - rf->used_qps; props->max_qp_wr = hw_attrs->max_qp_wr; set_max_sge(props, rf); props->max_cq = rf->max_cq - rf->used_cqs; props->max_cqe = rf->max_cqe - 1; props->max_mr = rf->max_mr - rf->used_mrs; props->max_pd = rf->max_pd - rf->used_pds; props->max_sge_rd = hw_attrs->uk_attrs.max_hw_read_sges; props->max_qp_rd_atom = hw_attrs->max_hw_ird; props->max_qp_init_rd_atom = hw_attrs->max_hw_ord; if (rdma_protocol_roce(ibdev, 1)) { props->device_cap_flags |= IB_DEVICE_RC_RNR_NAK_GEN; props->max_pkeys = IRDMA_PKEY_TBL_SZ; props->max_ah = rf->max_ah; if (hw_attrs->uk_attrs.hw_rev == IRDMA_GEN_2) { props->max_mcast_grp = rf->max_mcg; props->max_mcast_qp_attach = IRDMA_MAX_MGS_PER_CTX; props->max_total_mcast_qp_attach = rf->max_qp * IRDMA_MAX_MGS_PER_CTX; } } props->max_fast_reg_page_list_len = IRDMA_MAX_PAGES_PER_FMR; if (hw_attrs->uk_attrs.hw_rev >= IRDMA_GEN_2) props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B; return 0; } static int irdma_mmap_legacy(struct irdma_ucontext *ucontext, struct vm_area_struct *vma) { u64 pfn; if (vma->vm_pgoff || vma->vm_end - vma->vm_start != PAGE_SIZE) return -EINVAL; vma->vm_private_data = ucontext; pfn = ((uintptr_t)ucontext->iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET] + pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT; return rdma_user_mmap_io(&ucontext->ibucontext, vma, pfn, PAGE_SIZE, pgprot_noncached(vma->vm_page_prot)); } static inline bool find_key_in_mmap_tbl(struct irdma_ucontext *ucontext, u64 key) { struct irdma_user_mmap_entry *entry; HASH_FOR_EACH_POSSIBLE(ucontext->mmap_hash_tbl, entry, hlist, key) { if (entry->pgoff_key == key) return true; } return false; } struct irdma_user_mmap_entry * irdma_user_mmap_entry_add_hash(struct irdma_ucontext *ucontext, u64 bar_offset, enum irdma_mmap_flag mmap_flag, u64 *mmap_offset) { struct irdma_user_mmap_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL); unsigned long flags; int retry_cnt = 0; if (!entry) return NULL; entry->bar_offset = bar_offset; entry->mmap_flag = mmap_flag; entry->ucontext = ucontext; do { get_random_bytes(&entry->pgoff_key, sizeof(entry->pgoff_key)); /* The key is a page offset */ entry->pgoff_key >>= PAGE_SHIFT; /* In the event of a collision in the hash table, retry a new key */ spin_lock_irqsave(&ucontext->mmap_tbl_lock, flags); if (!find_key_in_mmap_tbl(ucontext, entry->pgoff_key)) { HASH_ADD(ucontext->mmap_hash_tbl, &entry->hlist, entry->pgoff_key); spin_unlock_irqrestore(&ucontext->mmap_tbl_lock, flags); goto hash_add_done; } spin_unlock_irqrestore(&ucontext->mmap_tbl_lock, flags); } while (retry_cnt++ < 10); irdma_debug(&ucontext->iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "mmap table add failed: Cannot find a unique key\n"); kfree(entry); return NULL; hash_add_done: /* libc mmap uses a byte offset */ *mmap_offset = entry->pgoff_key << PAGE_SHIFT; return entry; } static struct irdma_user_mmap_entry * irdma_find_user_mmap_entry(struct irdma_ucontext *ucontext, struct vm_area_struct *vma) { struct irdma_user_mmap_entry *entry; unsigned long flags; if (vma->vm_end - vma->vm_start != PAGE_SIZE) return NULL; spin_lock_irqsave(&ucontext->mmap_tbl_lock, flags); HASH_FOR_EACH_POSSIBLE(ucontext->mmap_hash_tbl, entry, hlist, vma->vm_pgoff) { if (entry->pgoff_key == vma->vm_pgoff) { spin_unlock_irqrestore(&ucontext->mmap_tbl_lock, flags); return entry; } } spin_unlock_irqrestore(&ucontext->mmap_tbl_lock, flags); return NULL; } void irdma_user_mmap_entry_del_hash(struct irdma_user_mmap_entry *entry) { struct irdma_ucontext *ucontext; unsigned long flags; if (!entry) return; ucontext = entry->ucontext; spin_lock_irqsave(&ucontext->mmap_tbl_lock, flags); HASH_DEL(ucontext->mmap_hash_tbl, &entry->hlist); spin_unlock_irqrestore(&ucontext->mmap_tbl_lock, flags); kfree(entry); } /** * irdma_mmap - user memory map * @context: context created during alloc * @vma: kernel info for user memory map */ static int irdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) { struct irdma_user_mmap_entry *entry; struct irdma_ucontext *ucontext; u64 pfn; int ret; ucontext = to_ucontext(context); /* Legacy support for libi40iw with hard-coded mmap key */ if (ucontext->legacy_mode) return irdma_mmap_legacy(ucontext, vma); entry = irdma_find_user_mmap_entry(ucontext, vma); if (!entry) { irdma_debug(&ucontext->iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "pgoff[0x%lx] does not have valid entry\n", vma->vm_pgoff); return -EINVAL; } irdma_debug(&ucontext->iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "bar_offset [0x%lx] mmap_flag [%d]\n", entry->bar_offset, entry->mmap_flag); pfn = (entry->bar_offset + pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT; switch (entry->mmap_flag) { case IRDMA_MMAP_IO_NC: ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE, pgprot_noncached(vma->vm_page_prot)); break; case IRDMA_MMAP_IO_WC: ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE, pgprot_writecombine(vma->vm_page_prot)); break; default: ret = -EINVAL; } if (ret) irdma_debug(&ucontext->iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "bar_offset [0x%lx] mmap_flag[%d] err[%d]\n", entry->bar_offset, entry->mmap_flag, ret); return ret; } /** * irdma_alloc_push_page - allocate a push page for qp * @iwqp: qp pointer */ static void irdma_alloc_push_page(struct irdma_qp *iwqp) { struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; struct irdma_device *iwdev = iwqp->iwdev; struct irdma_sc_qp *qp = &iwqp->sc_qp; int status; cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); if (!cqp_request) return; cqp_info = &cqp_request->info; cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE; cqp_info->post_sq = 1; cqp_info->in.u.manage_push_page.info.push_idx = 0; cqp_info->in.u.manage_push_page.info.qs_handle = qp->vsi->qos[qp->user_pri].qs_handle; cqp_info->in.u.manage_push_page.info.free_page = 0; cqp_info->in.u.manage_push_page.info.push_page_type = 0; cqp_info->in.u.manage_push_page.cqp = &iwdev->rf->cqp.sc_cqp; cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request; status = irdma_handle_cqp_op(iwdev->rf, cqp_request); if (!status && cqp_request->compl_info.op_ret_val < iwdev->rf->sc_dev.hw_attrs.max_hw_device_pages) { qp->push_idx = cqp_request->compl_info.op_ret_val; qp->push_offset = 0; } irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); } /** * irdma_get_pbl - Retrieve pbl from a list given a virtual * address * @va: user virtual address * @pbl_list: pbl list to search in (QP's or CQ's) */ struct irdma_pbl * irdma_get_pbl(unsigned long va, struct list_head *pbl_list) { struct irdma_pbl *iwpbl; list_for_each_entry(iwpbl, pbl_list, list) { if (iwpbl->user_base == va) { list_del(&iwpbl->list); iwpbl->on_list = false; return iwpbl; } } return NULL; } /** * irdma_clean_cqes - clean cq entries for qp * @iwqp: qp ptr (user or kernel) * @iwcq: cq ptr */ void irdma_clean_cqes(struct irdma_qp *iwqp, struct irdma_cq *iwcq) { struct irdma_cq_uk *ukcq = &iwcq->sc_cq.cq_uk; unsigned long flags; spin_lock_irqsave(&iwcq->lock, flags); irdma_uk_clean_cq(&iwqp->sc_qp.qp_uk, ukcq); spin_unlock_irqrestore(&iwcq->lock, flags); } static u64 irdma_compute_push_wqe_offset(struct irdma_device *iwdev, u32 page_idx){ u64 bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_2) { /* skip over db page */ bar_off += IRDMA_HW_PAGE_SIZE; /* skip over reserved space */ bar_off += IRDMA_PF_BAR_RSVD; } /* push wqe page */ bar_off += (u64)page_idx * IRDMA_HW_PAGE_SIZE; return bar_off; } void irdma_remove_push_mmap_entries(struct irdma_qp *iwqp) { if (iwqp->push_db_mmap_entry) { irdma_user_mmap_entry_del_hash(iwqp->push_db_mmap_entry); iwqp->push_db_mmap_entry = NULL; } if (iwqp->push_wqe_mmap_entry) { irdma_user_mmap_entry_del_hash(iwqp->push_wqe_mmap_entry); iwqp->push_wqe_mmap_entry = NULL; } } static int irdma_setup_push_mmap_entries(struct irdma_ucontext *ucontext, struct irdma_qp *iwqp, u64 *push_wqe_mmap_key, u64 *push_db_mmap_key) { struct irdma_device *iwdev = ucontext->iwdev; u64 bar_off; WARN_ON_ONCE(iwdev->rf->sc_dev.hw_attrs.uk_attrs.hw_rev < IRDMA_GEN_2); bar_off = irdma_compute_push_wqe_offset(iwdev, iwqp->sc_qp.push_idx); iwqp->push_wqe_mmap_entry = irdma_user_mmap_entry_add_hash(ucontext, bar_off, IRDMA_MMAP_IO_WC, push_wqe_mmap_key); if (!iwqp->push_wqe_mmap_entry) return -ENOMEM; /* push doorbell page */ bar_off += IRDMA_HW_PAGE_SIZE; iwqp->push_db_mmap_entry = irdma_user_mmap_entry_add_hash(ucontext, bar_off, IRDMA_MMAP_IO_NC, push_db_mmap_key); if (!iwqp->push_db_mmap_entry) { irdma_user_mmap_entry_del_hash(iwqp->push_wqe_mmap_entry); return -ENOMEM; } return 0; } /** * irdma_setup_virt_qp - setup for allocation of virtual qp * @iwdev: irdma device * @iwqp: qp ptr * @init_info: initialize info to return */ void irdma_setup_virt_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp, struct irdma_qp_init_info *init_info) { struct irdma_pbl *iwpbl = iwqp->iwpbl; struct irdma_qp_mr *qpmr = &iwpbl->qp_mr; iwqp->page = qpmr->sq_page; init_info->shadow_area_pa = qpmr->shadow; if (iwpbl->pbl_allocated) { init_info->virtual_map = true; init_info->sq_pa = qpmr->sq_pbl.idx; init_info->rq_pa = qpmr->rq_pbl.idx; } else { init_info->sq_pa = qpmr->sq_pbl.addr; init_info->rq_pa = qpmr->rq_pbl.addr; } } /** * irdma_setup_umode_qp - setup sq and rq size in user mode qp * @udata: user data * @iwdev: iwarp device * @iwqp: qp ptr (user or kernel) * @info: initialize info to return * @init_attr: Initial QP create attributes */ int irdma_setup_umode_qp(struct ib_udata *udata, struct irdma_device *iwdev, struct irdma_qp *iwqp, struct irdma_qp_init_info *info, struct ib_qp_init_attr *init_attr) { struct irdma_ucontext *ucontext = to_ucontext(iwqp->iwpd->ibpd.uobject->context); struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; struct irdma_create_qp_req req = {0}; unsigned long flags; int ret; ret = ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen)); if (ret) { irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "ib_copy_from_data fail\n"); return ret; } iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; iwqp->user_mode = 1; if (req.user_wqe_bufs) { info->qp_uk_init_info.legacy_mode = ucontext->legacy_mode; spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs, &ucontext->qp_reg_mem_list); spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); if (!iwqp->iwpbl) { ret = -ENODATA; irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "no pbl info\n"); return ret; } } if (!ucontext->use_raw_attrs) { /** * Maintain backward compat with older ABI which passes sq and * rq depth in quanta in cap.max_send_wr and cap.max_recv_wr. * There is no way to compute the correct value of * iwqp->max_send_wr/max_recv_wr in the kernel. */ iwqp->max_send_wr = init_attr->cap.max_send_wr; iwqp->max_recv_wr = init_attr->cap.max_recv_wr; ukinfo->sq_size = init_attr->cap.max_send_wr; ukinfo->rq_size = init_attr->cap.max_recv_wr; irdma_uk_calc_shift_wq(ukinfo, &ukinfo->sq_shift, &ukinfo->rq_shift); } else { ret = irdma_uk_calc_depth_shift_sq(ukinfo, &ukinfo->sq_depth, &ukinfo->sq_shift); if (ret) return ret; ret = irdma_uk_calc_depth_shift_rq(ukinfo, &ukinfo->rq_depth, &ukinfo->rq_shift); if (ret) return ret; iwqp->max_send_wr = (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift; iwqp->max_recv_wr = (ukinfo->rq_depth - IRDMA_RQ_RSVD) >> ukinfo->rq_shift; ukinfo->sq_size = ukinfo->sq_depth >> ukinfo->sq_shift; ukinfo->rq_size = ukinfo->rq_depth >> ukinfo->rq_shift; } if (req.comp_mask & IRDMA_CREATE_QP_USE_START_WQE_IDX && iwdev->rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_RTS_AE) ukinfo->start_wqe_idx = 4; irdma_setup_virt_qp(iwdev, iwqp, info); return 0; } /** * irdma_setup_kmode_qp - setup initialization for kernel mode qp * @iwdev: iwarp device * @iwqp: qp ptr (user or kernel) * @info: initialize info to return * @init_attr: Initial QP create attributes */ int irdma_setup_kmode_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp, struct irdma_qp_init_info *info, struct ib_qp_init_attr *init_attr) { struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem; u32 size; int status; struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; status = irdma_uk_calc_depth_shift_sq(ukinfo, &ukinfo->sq_depth, &ukinfo->sq_shift); if (status) return status; status = irdma_uk_calc_depth_shift_rq(ukinfo, &ukinfo->rq_depth, &ukinfo->rq_shift); if (status) return status; iwqp->kqp.sq_wrid_mem = kcalloc(ukinfo->sq_depth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL); if (!iwqp->kqp.sq_wrid_mem) return -ENOMEM; iwqp->kqp.rq_wrid_mem = kcalloc(ukinfo->rq_depth, sizeof(*iwqp->kqp.rq_wrid_mem), GFP_KERNEL); if (!iwqp->kqp.rq_wrid_mem) { kfree(iwqp->kqp.sq_wrid_mem); iwqp->kqp.sq_wrid_mem = NULL; return -ENOMEM; } iwqp->kqp.sig_trk_mem = kcalloc(ukinfo->sq_depth, sizeof(u32), GFP_KERNEL); memset(iwqp->kqp.sig_trk_mem, 0, ukinfo->sq_depth * sizeof(u32)); if (!iwqp->kqp.sig_trk_mem) { kfree(iwqp->kqp.sq_wrid_mem); iwqp->kqp.sq_wrid_mem = NULL; kfree(iwqp->kqp.rq_wrid_mem); iwqp->kqp.rq_wrid_mem = NULL; return -ENOMEM; } ukinfo->sq_sigwrtrk_array = (void *)iwqp->kqp.sig_trk_mem; ukinfo->sq_wrtrk_array = iwqp->kqp.sq_wrid_mem; ukinfo->rq_wrid_array = iwqp->kqp.rq_wrid_mem; size = (ukinfo->sq_depth + ukinfo->rq_depth) * IRDMA_QP_WQE_MIN_SIZE; size += (IRDMA_SHADOW_AREA_SIZE << 3); mem->size = size; mem->va = irdma_allocate_dma_mem(&iwdev->rf->hw, mem, mem->size, 256); if (!mem->va) { kfree(iwqp->kqp.sq_wrid_mem); iwqp->kqp.sq_wrid_mem = NULL; kfree(iwqp->kqp.rq_wrid_mem); iwqp->kqp.rq_wrid_mem = NULL; return -ENOMEM; } ukinfo->sq = mem->va; info->sq_pa = mem->pa; ukinfo->rq = &ukinfo->sq[ukinfo->sq_depth]; info->rq_pa = info->sq_pa + (ukinfo->sq_depth * IRDMA_QP_WQE_MIN_SIZE); ukinfo->shadow_area = ukinfo->rq[ukinfo->rq_depth].elem; info->shadow_area_pa = info->rq_pa + (ukinfo->rq_depth * IRDMA_QP_WQE_MIN_SIZE); ukinfo->sq_size = ukinfo->sq_depth >> ukinfo->sq_shift; ukinfo->rq_size = ukinfo->rq_depth >> ukinfo->rq_shift; ukinfo->qp_id = iwqp->ibqp.qp_num; iwqp->max_send_wr = (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift; iwqp->max_recv_wr = (ukinfo->rq_depth - IRDMA_RQ_RSVD) >> ukinfo->rq_shift; init_attr->cap.max_send_wr = iwqp->max_send_wr; init_attr->cap.max_recv_wr = iwqp->max_recv_wr; return 0; } int irdma_cqp_create_qp_cmd(struct irdma_qp *iwqp) { struct irdma_pci_f *rf = iwqp->iwdev->rf; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; struct irdma_create_qp_info *qp_info; int status; cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); if (!cqp_request) return -ENOMEM; cqp_info = &cqp_request->info; qp_info = &cqp_request->info.in.u.qp_create.info; memset(qp_info, 0, sizeof(*qp_info)); qp_info->mac_valid = true; qp_info->cq_num_valid = true; qp_info->next_iwarp_state = IRDMA_QP_STATE_IDLE; cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE; cqp_info->post_sq = 1; cqp_info->in.u.qp_create.qp = &iwqp->sc_qp; cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; status = irdma_handle_cqp_op(rf, cqp_request); irdma_put_cqp_request(&rf->cqp, cqp_request); return status; } void irdma_roce_fill_and_set_qpctx_info(struct irdma_qp *iwqp, struct irdma_qp_host_ctx_info *ctx_info) { struct irdma_device *iwdev = iwqp->iwdev; struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; struct irdma_roce_offload_info *roce_info; struct irdma_udp_offload_info *udp_info; udp_info = &iwqp->udp_info; udp_info->snd_mss = ib_mtu_enum_to_int(ib_mtu_int_to_enum(iwdev->vsi.mtu)); udp_info->cwnd = iwdev->roce_cwnd; udp_info->rexmit_thresh = 2; udp_info->rnr_nak_thresh = 2; udp_info->src_port = 0xc000; udp_info->dst_port = ROCE_V2_UDP_DPORT; roce_info = &iwqp->roce_info; ether_addr_copy(roce_info->mac_addr, if_getlladdr(iwdev->netdev)); roce_info->rd_en = true; roce_info->wr_rdresp_en = true; roce_info->dcqcn_en = false; roce_info->rtomin = iwdev->roce_rtomin; roce_info->ack_credits = iwdev->roce_ackcreds; roce_info->ird_size = dev->hw_attrs.max_hw_ird; roce_info->ord_size = dev->hw_attrs.max_hw_ord; if (!iwqp->user_mode) { roce_info->priv_mode_en = true; roce_info->fast_reg_en = true; roce_info->udprivcq_en = true; } roce_info->roce_tver = 0; ctx_info->roce_info = &iwqp->roce_info; ctx_info->udp_info = &iwqp->udp_info; irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); } void irdma_iw_fill_and_set_qpctx_info(struct irdma_qp *iwqp, struct irdma_qp_host_ctx_info *ctx_info) { struct irdma_device *iwdev = iwqp->iwdev; struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; struct irdma_iwarp_offload_info *iwarp_info; iwarp_info = &iwqp->iwarp_info; ether_addr_copy(iwarp_info->mac_addr, if_getlladdr(iwdev->netdev)); iwarp_info->rd_en = true; iwarp_info->wr_rdresp_en = true; iwarp_info->ecn_en = true; iwarp_info->rtomin = 5; if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) iwarp_info->ib_rd_en = true; if (!iwqp->user_mode) { iwarp_info->priv_mode_en = true; iwarp_info->fast_reg_en = true; } iwarp_info->ddp_ver = 1; iwarp_info->rdmap_ver = 1; ctx_info->iwarp_info = &iwqp->iwarp_info; ctx_info->iwarp_info_valid = true; irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); ctx_info->iwarp_info_valid = false; } int irdma_validate_qp_attrs(struct ib_qp_init_attr *init_attr, struct irdma_device *iwdev) { struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs; if (init_attr->create_flags) return -EOPNOTSUPP; if (init_attr->cap.max_inline_data > uk_attrs->max_hw_inline || init_attr->cap.max_send_sge > uk_attrs->max_hw_wq_frags || init_attr->cap.max_send_wr > uk_attrs->max_hw_wq_quanta || init_attr->cap.max_recv_wr > uk_attrs->max_hw_rq_quanta || init_attr->cap.max_recv_sge > uk_attrs->max_hw_wq_frags) return -EINVAL; if (rdma_protocol_roce(&iwdev->ibdev, 1)) { if (init_attr->qp_type != IB_QPT_RC && init_attr->qp_type != IB_QPT_UD && init_attr->qp_type != IB_QPT_GSI) return -EOPNOTSUPP; } else { if (init_attr->qp_type != IB_QPT_RC) return -EOPNOTSUPP; } return 0; } void irdma_sched_qp_flush_work(struct irdma_qp *iwqp) { unsigned long flags; if (iwqp->sc_qp.qp_uk.destroy_pending) return; irdma_qp_add_ref(&iwqp->ibqp); spin_lock_irqsave(&iwqp->dwork_flush_lock, flags); if (mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush, msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS))) irdma_qp_rem_ref(&iwqp->ibqp); spin_unlock_irqrestore(&iwqp->dwork_flush_lock, flags); } void irdma_flush_worker(struct work_struct *work) { struct delayed_work *dwork = to_delayed_work(work); struct irdma_qp *iwqp = container_of(dwork, struct irdma_qp, dwork_flush); irdma_generate_flush_completions(iwqp); /* For the add in irdma_sched_qp_flush_work */ irdma_qp_rem_ref(&iwqp->ibqp); } static int irdma_get_ib_acc_flags(struct irdma_qp *iwqp) { int acc_flags = 0; if (rdma_protocol_roce(iwqp->ibqp.device, 1)) { if (iwqp->roce_info.wr_rdresp_en) { acc_flags |= IB_ACCESS_LOCAL_WRITE; acc_flags |= IB_ACCESS_REMOTE_WRITE; } if (iwqp->roce_info.rd_en) acc_flags |= IB_ACCESS_REMOTE_READ; } else { if (iwqp->iwarp_info.wr_rdresp_en) { acc_flags |= IB_ACCESS_LOCAL_WRITE; acc_flags |= IB_ACCESS_REMOTE_WRITE; } if (iwqp->iwarp_info.rd_en) acc_flags |= IB_ACCESS_REMOTE_READ; } return acc_flags; } /** * irdma_query_qp - query qp attributes * @ibqp: qp pointer * @attr: attributes pointer * @attr_mask: Not used * @init_attr: qp attributes to return */ static int irdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_qp_init_attr *init_attr) { struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_sc_qp *qp = &iwqp->sc_qp; memset(attr, 0, sizeof(*attr)); memset(init_attr, 0, sizeof(*init_attr)); attr->qp_state = iwqp->ibqp_state; attr->cur_qp_state = iwqp->ibqp_state; attr->cap.max_send_wr = iwqp->max_send_wr; attr->cap.max_recv_wr = iwqp->max_recv_wr; attr->cap.max_inline_data = qp->qp_uk.max_inline_data; attr->cap.max_send_sge = qp->qp_uk.max_sq_frag_cnt; attr->cap.max_recv_sge = qp->qp_uk.max_rq_frag_cnt; attr->qp_access_flags = irdma_get_ib_acc_flags(iwqp); attr->port_num = 1; if (rdma_protocol_roce(ibqp->device, 1)) { attr->path_mtu = ib_mtu_int_to_enum(iwqp->udp_info.snd_mss); attr->qkey = iwqp->roce_info.qkey; attr->rq_psn = iwqp->udp_info.epsn; attr->sq_psn = iwqp->udp_info.psn_nxt; attr->dest_qp_num = iwqp->roce_info.dest_qp; attr->pkey_index = iwqp->roce_info.p_key; attr->retry_cnt = iwqp->udp_info.rexmit_thresh; attr->rnr_retry = iwqp->udp_info.rnr_nak_thresh; attr->max_rd_atomic = iwqp->roce_info.ord_size; attr->max_dest_rd_atomic = iwqp->roce_info.ird_size; } init_attr->event_handler = iwqp->ibqp.event_handler; init_attr->qp_context = iwqp->ibqp.qp_context; init_attr->send_cq = iwqp->ibqp.send_cq; init_attr->recv_cq = iwqp->ibqp.recv_cq; init_attr->cap = attr->cap; return 0; } static int irdma_wait_for_suspend(struct irdma_qp *iwqp) { if (!wait_event_timeout(iwqp->iwdev->suspend_wq, !iwqp->suspend_pending, msecs_to_jiffies(IRDMA_EVENT_TIMEOUT_MS))) { iwqp->suspend_pending = false; irdma_dev_warn(&iwqp->iwdev->ibdev, "modify_qp timed out waiting for suspend. qp_id = %d, last_ae = 0x%x\n", iwqp->ibqp.qp_num, iwqp->last_aeq); return -EBUSY; } return 0; } /** * irdma_modify_qp_roce - modify qp request * @ibqp: qp's pointer for modify * @attr: access attributes * @attr_mask: state mask * @udata: user data */ int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata) { #define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush) #define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid) struct irdma_pd *iwpd = to_iwpd(ibqp->pd); struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_device *iwdev = iwqp->iwdev; struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; struct irdma_qp_host_ctx_info *ctx_info; struct irdma_roce_offload_info *roce_info; struct irdma_udp_offload_info *udp_info; struct irdma_modify_qp_info info = {0}; struct irdma_modify_qp_resp uresp = {}; struct irdma_modify_qp_req ureq; unsigned long flags; u8 issue_modify_qp = 0; int ret = 0; ctx_info = &iwqp->ctx_info; roce_info = &iwqp->roce_info; udp_info = &iwqp->udp_info; if (udata) { if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) || (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN)) return -EINVAL; } if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS) return -EOPNOTSUPP; if (attr_mask & IB_QP_DEST_QPN) roce_info->dest_qp = attr->dest_qp_num; if (attr_mask & IB_QP_PKEY_INDEX) { ret = irdma_query_pkey(ibqp->device, 0, attr->pkey_index, &roce_info->p_key); if (ret) return ret; } if (attr_mask & IB_QP_QKEY) roce_info->qkey = attr->qkey; if (attr_mask & IB_QP_PATH_MTU) udp_info->snd_mss = ib_mtu_enum_to_int(attr->path_mtu); if (attr_mask & IB_QP_SQ_PSN) { udp_info->psn_nxt = attr->sq_psn; udp_info->lsn = 0xffff; udp_info->psn_una = attr->sq_psn; udp_info->psn_max = attr->sq_psn; } if (attr_mask & IB_QP_RQ_PSN) udp_info->epsn = attr->rq_psn; if (attr_mask & IB_QP_RNR_RETRY) udp_info->rnr_nak_thresh = attr->rnr_retry; if (attr_mask & IB_QP_RETRY_CNT) udp_info->rexmit_thresh = attr->retry_cnt; ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id; if (attr_mask & IB_QP_AV) { struct irdma_av *av = &iwqp->roce_ah.av; u16 vlan_id = VLAN_N_VID; u32 local_ip[4] = {}; memset(&iwqp->roce_ah, 0, sizeof(iwqp->roce_ah)); if (attr->ah_attr.ah_flags & IB_AH_GRH) { udp_info->ttl = attr->ah_attr.grh.hop_limit; udp_info->flow_label = attr->ah_attr.grh.flow_label; udp_info->tos = attr->ah_attr.grh.traffic_class; udp_info->src_port = kc_rdma_get_udp_sport(udp_info->flow_label, ibqp->qp_num, roce_info->dest_qp); irdma_qp_rem_qos(&iwqp->sc_qp); dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri); if (iwqp->sc_qp.vsi->dscp_mode) ctx_info->user_pri = iwqp->sc_qp.vsi->dscp_map[irdma_tos2dscp(udp_info->tos)]; else ctx_info->user_pri = rt_tos2priority(udp_info->tos); } ret = kc_irdma_set_roce_cm_info(iwqp, attr, &vlan_id); if (ret) return ret; if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri)) return -ENOMEM; iwqp->sc_qp.user_pri = ctx_info->user_pri; irdma_qp_add_qos(&iwqp->sc_qp); if (vlan_id >= VLAN_N_VID && iwdev->dcb_vlan_mode) vlan_id = 0; if (vlan_id < VLAN_N_VID) { udp_info->insert_vlan_tag = true; udp_info->vlan_tag = vlan_id | ctx_info->user_pri << VLAN_PRIO_SHIFT; } else { udp_info->insert_vlan_tag = false; } av->attrs = attr->ah_attr; rdma_gid2ip((struct sockaddr *)&av->dgid_addr, &attr->ah_attr.grh.dgid); if (av->net_type == RDMA_NETWORK_IPV6) { __be32 *daddr = av->dgid_addr.saddr_in6.sin6_addr.__u6_addr.__u6_addr32; __be32 *saddr = av->sgid_addr.saddr_in6.sin6_addr.__u6_addr.__u6_addr32; irdma_copy_ip_ntohl(&udp_info->dest_ip_addr[0], daddr); irdma_copy_ip_ntohl(&udp_info->local_ipaddr[0], saddr); udp_info->ipv4 = false; irdma_copy_ip_ntohl(local_ip, daddr); } else if (av->net_type == RDMA_NETWORK_IPV4) { __be32 saddr = av->sgid_addr.saddr_in.sin_addr.s_addr; __be32 daddr = av->dgid_addr.saddr_in.sin_addr.s_addr; local_ip[0] = ntohl(daddr); udp_info->ipv4 = true; udp_info->dest_ip_addr[0] = 0; udp_info->dest_ip_addr[1] = 0; udp_info->dest_ip_addr[2] = 0; udp_info->dest_ip_addr[3] = local_ip[0]; udp_info->local_ipaddr[0] = 0; udp_info->local_ipaddr[1] = 0; udp_info->local_ipaddr[2] = 0; udp_info->local_ipaddr[3] = ntohl(saddr); } else { return -EINVAL; } udp_info->arp_idx = irdma_add_arp(iwdev->rf, local_ip, ah_attr_to_dmac(attr->ah_attr)); } if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) { irdma_dev_err(&iwdev->ibdev, "rd_atomic = %d, above max_hw_ord=%d\n", attr->max_rd_atomic, dev->hw_attrs.max_hw_ord); return -EINVAL; } if (attr->max_rd_atomic) roce_info->ord_size = attr->max_rd_atomic; info.ord_valid = true; } if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { if (attr->max_dest_rd_atomic > dev->hw_attrs.max_hw_ird) { irdma_dev_err(&iwdev->ibdev, "rd_atomic = %d, above max_hw_ird=%d\n", attr->max_rd_atomic, dev->hw_attrs.max_hw_ird); return -EINVAL; } if (attr->max_dest_rd_atomic) roce_info->ird_size = attr->max_dest_rd_atomic; } if (attr_mask & IB_QP_ACCESS_FLAGS) { if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) roce_info->wr_rdresp_en = true; if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) roce_info->wr_rdresp_en = true; if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) roce_info->rd_en = true; } wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend)); irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d attr_mask=0x%x\n", __builtin_return_address(0), ibqp->qp_num, attr->qp_state, iwqp->ibqp_state, iwqp->iwarp_state, attr_mask); spin_lock_irqsave(&iwqp->lock, flags); if (attr_mask & IB_QP_STATE) { if (!ib_modify_qp_is_ok(iwqp->ibqp_state, attr->qp_state, iwqp->ibqp.qp_type, attr_mask)) { irdma_dev_warn(&iwdev->ibdev, "modify_qp invalid for qp_id=%d, old_state=0x%x, new_state=0x%x\n", iwqp->ibqp.qp_num, iwqp->ibqp_state, attr->qp_state); ret = -EINVAL; goto exit; } info.curr_iwarp_state = iwqp->iwarp_state; switch (attr->qp_state) { case IB_QPS_INIT: if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) { ret = -EINVAL; goto exit; } if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) { info.next_iwarp_state = IRDMA_QP_STATE_IDLE; issue_modify_qp = 1; } break; case IB_QPS_RTR: if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) { ret = -EINVAL; goto exit; } info.arp_cache_idx_valid = true; info.cq_num_valid = true; info.next_iwarp_state = IRDMA_QP_STATE_RTR; issue_modify_qp = 1; break; case IB_QPS_RTS: if (iwqp->ibqp_state < IB_QPS_RTR || iwqp->ibqp_state == IB_QPS_ERR) { ret = -EINVAL; goto exit; } info.arp_cache_idx_valid = true; info.cq_num_valid = true; info.ord_valid = true; info.next_iwarp_state = IRDMA_QP_STATE_RTS; issue_modify_qp = 1; if (dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_2) iwdev->rf->check_fc(&iwdev->vsi, &iwqp->sc_qp); udp_info->cwnd = iwdev->roce_cwnd; roce_info->ack_credits = iwdev->roce_ackcreds; if (iwdev->push_mode && udata && iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { spin_unlock_irqrestore(&iwqp->lock, flags); irdma_alloc_push_page(iwqp); spin_lock_irqsave(&iwqp->lock, flags); } break; case IB_QPS_SQD: if (iwqp->iwarp_state == IRDMA_QP_STATE_SQD) goto exit; if (iwqp->iwarp_state != IRDMA_QP_STATE_RTS) { ret = -EINVAL; goto exit; } info.next_iwarp_state = IRDMA_QP_STATE_SQD; issue_modify_qp = 1; iwqp->suspend_pending = true; break; case IB_QPS_SQE: case IB_QPS_ERR: case IB_QPS_RESET: if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) { spin_unlock_irqrestore(&iwqp->lock, flags); if (udata && udata->inlen) { if (ib_copy_from_udata(&ureq, udata, min(sizeof(ureq), udata->inlen))) return -EINVAL; irdma_flush_wqes(iwqp, (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) | (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) | IRDMA_REFLUSH); } return 0; } info.next_iwarp_state = IRDMA_QP_STATE_ERROR; issue_modify_qp = 1; break; default: ret = -EINVAL; goto exit; } iwqp->ibqp_state = attr->qp_state; } ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); spin_unlock_irqrestore(&iwqp->lock, flags); if (attr_mask & IB_QP_STATE) { if (issue_modify_qp) { ctx_info->rem_endpoint_idx = udp_info->arp_idx; if (irdma_hw_modify_qp(iwdev, iwqp, &info, true)) return -EINVAL; if (info.next_iwarp_state == IRDMA_QP_STATE_SQD) { ret = irdma_wait_for_suspend(iwqp); if (ret) return ret; } spin_lock_irqsave(&iwqp->lock, flags); if (iwqp->iwarp_state == info.curr_iwarp_state) { iwqp->iwarp_state = info.next_iwarp_state; iwqp->ibqp_state = attr->qp_state; } if (iwqp->ibqp_state > IB_QPS_RTS && !iwqp->flush_issued) { spin_unlock_irqrestore(&iwqp->lock, flags); irdma_flush_wqes(iwqp, IRDMA_FLUSH_SQ | IRDMA_FLUSH_RQ | IRDMA_FLUSH_WAIT); iwqp->flush_issued = 1; } else { spin_unlock_irqrestore(&iwqp->lock, flags); } } else { iwqp->ibqp_state = attr->qp_state; } if (udata && udata->outlen && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { struct irdma_ucontext *ucontext; ucontext = to_ucontext(ibqp->uobject->context); if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX && !iwqp->push_wqe_mmap_entry && !irdma_setup_push_mmap_entries(ucontext, iwqp, &uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) { uresp.push_valid = 1; uresp.push_offset = iwqp->sc_qp.push_offset; } uresp.rd_fence_rate = iwdev->rd_fence_rate; ret = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); if (ret) { irdma_remove_push_mmap_entries(iwqp); irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "copy_to_udata failed\n"); return ret; } } } return 0; exit: spin_unlock_irqrestore(&iwqp->lock, flags); return ret; } /** * irdma_modify_qp - modify qp request * @ibqp: qp's pointer for modify * @attr: access attributes * @attr_mask: state mask * @udata: user data */ int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata) { #define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush) #define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid) struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_device *iwdev = iwqp->iwdev; struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; struct irdma_qp_host_ctx_info *ctx_info; struct irdma_tcp_offload_info *tcp_info; struct irdma_iwarp_offload_info *offload_info; struct irdma_modify_qp_info info = {0}; struct irdma_modify_qp_resp uresp = {}; struct irdma_modify_qp_req ureq = {}; u8 issue_modify_qp = 0; u8 dont_wait = 0; int err; unsigned long flags; if (udata) { if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) || (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN)) return -EINVAL; } if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS) return -EOPNOTSUPP; ctx_info = &iwqp->ctx_info; offload_info = &iwqp->iwarp_info; tcp_info = &iwqp->tcp_info; wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend)); irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d last_aeq=%d hw_tcp_state=%d hw_iwarp_state=%d attr_mask=0x%x\n", __builtin_return_address(0), ibqp->qp_num, attr->qp_state, iwqp->ibqp_state, iwqp->iwarp_state, iwqp->last_aeq, iwqp->hw_tcp_state, iwqp->hw_iwarp_state, attr_mask); spin_lock_irqsave(&iwqp->lock, flags); if (attr_mask & IB_QP_STATE) { info.curr_iwarp_state = iwqp->iwarp_state; switch (attr->qp_state) { case IB_QPS_INIT: case IB_QPS_RTR: if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) { err = -EINVAL; goto exit; } if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) { info.next_iwarp_state = IRDMA_QP_STATE_IDLE; issue_modify_qp = 1; } if (iwdev->push_mode && udata && iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { spin_unlock_irqrestore(&iwqp->lock, flags); irdma_alloc_push_page(iwqp); spin_lock_irqsave(&iwqp->lock, flags); } break; case IB_QPS_RTS: if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS || !iwqp->cm_id) { err = -EINVAL; goto exit; } issue_modify_qp = 1; iwqp->hw_tcp_state = IRDMA_TCP_STATE_ESTABLISHED; iwqp->hte_added = 1; info.next_iwarp_state = IRDMA_QP_STATE_RTS; info.tcp_ctx_valid = true; info.ord_valid = true; info.arp_cache_idx_valid = true; info.cq_num_valid = true; break; case IB_QPS_SQD: if (iwqp->hw_iwarp_state > IRDMA_QP_STATE_RTS) { err = 0; goto exit; } if (iwqp->iwarp_state == IRDMA_QP_STATE_CLOSING || iwqp->iwarp_state < IRDMA_QP_STATE_RTS) { err = 0; goto exit; } if (iwqp->iwarp_state > IRDMA_QP_STATE_CLOSING) { err = -EINVAL; goto exit; } info.next_iwarp_state = IRDMA_QP_STATE_CLOSING; issue_modify_qp = 1; break; case IB_QPS_SQE: if (iwqp->iwarp_state >= IRDMA_QP_STATE_TERMINATE) { err = -EINVAL; goto exit; } info.next_iwarp_state = IRDMA_QP_STATE_TERMINATE; issue_modify_qp = 1; break; case IB_QPS_ERR: case IB_QPS_RESET: if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) { spin_unlock_irqrestore(&iwqp->lock, flags); if (udata && udata->inlen) { if (ib_copy_from_udata(&ureq, udata, min(sizeof(ureq), udata->inlen))) return -EINVAL; irdma_flush_wqes(iwqp, (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) | (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) | IRDMA_REFLUSH); } return 0; } if (iwqp->sc_qp.term_flags) { spin_unlock_irqrestore(&iwqp->lock, flags); irdma_terminate_del_timer(&iwqp->sc_qp); spin_lock_irqsave(&iwqp->lock, flags); } info.next_iwarp_state = IRDMA_QP_STATE_ERROR; if (iwqp->hw_tcp_state > IRDMA_TCP_STATE_CLOSED && iwdev->iw_status && iwqp->hw_tcp_state != IRDMA_TCP_STATE_TIME_WAIT) info.reset_tcp_conn = true; else dont_wait = 1; issue_modify_qp = 1; info.next_iwarp_state = IRDMA_QP_STATE_ERROR; break; default: err = -EINVAL; goto exit; } iwqp->ibqp_state = attr->qp_state; } if (attr_mask & IB_QP_ACCESS_FLAGS) { ctx_info->iwarp_info_valid = true; if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) offload_info->wr_rdresp_en = true; if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) offload_info->wr_rdresp_en = true; if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) offload_info->rd_en = true; } if (ctx_info->iwarp_info_valid) { ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); } spin_unlock_irqrestore(&iwqp->lock, flags); if (attr_mask & IB_QP_STATE) { if (issue_modify_qp) { ctx_info->rem_endpoint_idx = tcp_info->arp_idx; if (irdma_hw_modify_qp(iwdev, iwqp, &info, true)) return -EINVAL; } spin_lock_irqsave(&iwqp->lock, flags); if (iwqp->iwarp_state == info.curr_iwarp_state) { iwqp->iwarp_state = info.next_iwarp_state; iwqp->ibqp_state = attr->qp_state; } spin_unlock_irqrestore(&iwqp->lock, flags); } if (issue_modify_qp && iwqp->ibqp_state > IB_QPS_RTS) { if (dont_wait) { if (iwqp->hw_tcp_state) { spin_lock_irqsave(&iwqp->lock, flags); iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSED; iwqp->last_aeq = IRDMA_AE_RESET_SENT; spin_unlock_irqrestore(&iwqp->lock, flags); } irdma_cm_disconn(iwqp); } else { int close_timer_started; spin_lock_irqsave(&iwdev->cm_core.ht_lock, flags); if (iwqp->cm_node) { atomic_inc(&iwqp->cm_node->refcnt); spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags); close_timer_started = atomic_inc_return(&iwqp->close_timer_started); if (iwqp->cm_id && close_timer_started == 1) irdma_schedule_cm_timer(iwqp->cm_node, (struct irdma_puda_buf *)iwqp, IRDMA_TIMER_TYPE_CLOSE, 1, 0); irdma_rem_ref_cm_node(iwqp->cm_node); } else { spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags); } } } if (attr_mask & IB_QP_STATE && udata && udata->outlen && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { struct irdma_ucontext *ucontext; ucontext = to_ucontext(ibqp->uobject->context); if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX && !iwqp->push_wqe_mmap_entry && !irdma_setup_push_mmap_entries(ucontext, iwqp, &uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) { uresp.push_valid = 1; uresp.push_offset = iwqp->sc_qp.push_offset; } uresp.rd_fence_rate = iwdev->rd_fence_rate; err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); if (err) { irdma_remove_push_mmap_entries(iwqp); irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "copy_to_udata failed\n"); return err; } } return 0; exit: spin_unlock_irqrestore(&iwqp->lock, flags); return err; } /** * irdma_cq_free_rsrc - free up resources for cq * @rf: RDMA PCI function * @iwcq: cq ptr */ void irdma_cq_free_rsrc(struct irdma_pci_f *rf, struct irdma_cq *iwcq) { struct irdma_sc_cq *cq = &iwcq->sc_cq; if (!iwcq->user_mode) { irdma_free_dma_mem(rf->sc_dev.hw, &iwcq->kmem); irdma_free_dma_mem(rf->sc_dev.hw, &iwcq->kmem_shadow); } irdma_free_rsrc(rf, rf->allocated_cqs, cq->cq_uk.cq_id); } /** * irdma_free_cqbuf - worker to free a cq buffer * @work: provides access to the cq buffer to free */ static void irdma_free_cqbuf(struct work_struct *work) { struct irdma_cq_buf *cq_buf = container_of(work, struct irdma_cq_buf, work); irdma_free_dma_mem(cq_buf->hw, &cq_buf->kmem_buf); kfree(cq_buf); } /** * irdma_process_resize_list - remove resized cq buffers from the resize_list * @iwcq: cq which owns the resize_list * @iwdev: irdma device * @lcqe_buf: the buffer where the last cqe is received */ int irdma_process_resize_list(struct irdma_cq *iwcq, struct irdma_device *iwdev, struct irdma_cq_buf *lcqe_buf) { struct list_head *tmp_node, *list_node; struct irdma_cq_buf *cq_buf; int cnt = 0; list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) { cq_buf = list_entry(list_node, struct irdma_cq_buf, list); if (cq_buf == lcqe_buf) return cnt; list_del(&cq_buf->list); queue_work(iwdev->cleanup_wq, &cq_buf->work); cnt++; } return cnt; } /** * irdma_resize_cq - resize cq * @ibcq: cq to be resized * @entries: desired cq size * @udata: user data */ static int irdma_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) { #define IRDMA_RESIZE_CQ_MIN_REQ_LEN offsetofend(struct irdma_resize_cq_req, user_cq_buffer) struct irdma_cq *iwcq = to_iwcq(ibcq); struct irdma_sc_dev *dev = iwcq->sc_cq.dev; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; struct irdma_modify_cq_info *m_info; struct irdma_modify_cq_info info = {0}; struct irdma_dma_mem kmem_buf; struct irdma_cq_mr *cqmr_buf; struct irdma_pbl *iwpbl_buf; struct irdma_device *iwdev; struct irdma_pci_f *rf; struct irdma_cq_buf *cq_buf = NULL; unsigned long flags; int ret; iwdev = to_iwdev(ibcq->device); rf = iwdev->rf; if (!(rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE)) return -EOPNOTSUPP; if (udata && udata->inlen < IRDMA_RESIZE_CQ_MIN_REQ_LEN) return -EINVAL; if (entries > rf->max_cqe) return -EINVAL; if (!iwcq->user_mode) { entries++; if (rf->sc_dev.hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) entries *= 2; } info.cq_size = max(entries, 4); if (info.cq_size == iwcq->sc_cq.cq_uk.cq_size - 1) return 0; if (udata) { struct irdma_resize_cq_req req = {}; struct irdma_ucontext *ucontext = to_ucontext(ibcq->uobject->context); /* CQ resize not supported with legacy GEN_1 libi40iw */ if (ucontext->legacy_mode) return -EOPNOTSUPP; if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) return -EINVAL; spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); iwpbl_buf = irdma_get_pbl((unsigned long)req.user_cq_buffer, &ucontext->cq_reg_mem_list); spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); if (!iwpbl_buf) return -ENOMEM; cqmr_buf = &iwpbl_buf->cq_mr; if (iwpbl_buf->pbl_allocated) { info.virtual_map = true; info.pbl_chunk_size = 1; info.first_pm_pbl_idx = cqmr_buf->cq_pbl.idx; } else { info.cq_pa = cqmr_buf->cq_pbl.addr; } } else { /* Kmode CQ resize */ int rsize; rsize = info.cq_size * sizeof(struct irdma_cqe); kmem_buf.size = round_up(rsize, 256); kmem_buf.va = irdma_allocate_dma_mem(dev->hw, &kmem_buf, kmem_buf.size, 256); if (!kmem_buf.va) return -ENOMEM; info.cq_base = kmem_buf.va; info.cq_pa = kmem_buf.pa; cq_buf = kzalloc(sizeof(*cq_buf), GFP_KERNEL); if (!cq_buf) { ret = -ENOMEM; goto error; } } cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); if (!cqp_request) { ret = -ENOMEM; goto error; } info.shadow_read_threshold = iwcq->sc_cq.shadow_read_threshold; info.cq_resize = true; cqp_info = &cqp_request->info; m_info = &cqp_info->in.u.cq_modify.info; memcpy(m_info, &info, sizeof(*m_info)); cqp_info->cqp_cmd = IRDMA_OP_CQ_MODIFY; cqp_info->in.u.cq_modify.cq = &iwcq->sc_cq; cqp_info->in.u.cq_modify.scratch = (uintptr_t)cqp_request; cqp_info->post_sq = 1; ret = irdma_handle_cqp_op(rf, cqp_request); irdma_put_cqp_request(&rf->cqp, cqp_request); if (ret) goto error; spin_lock_irqsave(&iwcq->lock, flags); if (cq_buf) { cq_buf->kmem_buf = iwcq->kmem; cq_buf->hw = dev->hw; memcpy(&cq_buf->cq_uk, &iwcq->sc_cq.cq_uk, sizeof(cq_buf->cq_uk)); INIT_WORK(&cq_buf->work, irdma_free_cqbuf); list_add_tail(&cq_buf->list, &iwcq->resize_list); iwcq->kmem = kmem_buf; } irdma_sc_cq_resize(&iwcq->sc_cq, &info); ibcq->cqe = info.cq_size - 1; spin_unlock_irqrestore(&iwcq->lock, flags); return 0; error: if (!udata) irdma_free_dma_mem(dev->hw, &kmem_buf); kfree(cq_buf); return ret; } /** * irdma_get_mr_access - get hw MR access permissions from IB access flags * @access: IB access flags * @hw_rev: Hardware version */ static inline u16 irdma_get_mr_access(int access, u8 hw_rev) { u16 hw_access = 0; hw_access |= (access & IB_ACCESS_LOCAL_WRITE) ? IRDMA_ACCESS_FLAGS_LOCALWRITE : 0; hw_access |= (access & IB_ACCESS_REMOTE_WRITE) ? IRDMA_ACCESS_FLAGS_REMOTEWRITE : 0; hw_access |= (access & IB_ACCESS_REMOTE_READ) ? IRDMA_ACCESS_FLAGS_REMOTEREAD : 0; hw_access |= (access & IB_ZERO_BASED) ? IRDMA_ACCESS_FLAGS_ZERO_BASED : 0; hw_access |= IRDMA_ACCESS_FLAGS_LOCALREAD; return hw_access; } /** * irdma_free_stag - free stag resource * @iwdev: irdma device * @stag: stag to free */ void irdma_free_stag(struct irdma_device *iwdev, u32 stag) { u32 stag_idx; stag_idx = (stag & iwdev->rf->mr_stagmask) >> IRDMA_CQPSQ_STAG_IDX_S; irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, stag_idx); } /** * irdma_create_stag - create random stag * @iwdev: irdma device */ u32 irdma_create_stag(struct irdma_device *iwdev) { u32 stag; u32 stag_index = 0; u32 next_stag_index; u32 driver_key; u32 random; u8 consumer_key; int ret; get_random_bytes(&random, sizeof(random)); consumer_key = (u8)random; driver_key = random & ~iwdev->rf->mr_stagmask; next_stag_index = (random & iwdev->rf->mr_stagmask) >> 8; next_stag_index %= iwdev->rf->max_mr; ret = irdma_alloc_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, iwdev->rf->max_mr, &stag_index, &next_stag_index); if (ret) return 0; stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S; stag |= driver_key; stag += (u32)consumer_key; return stag; } /** * irdma_check_mem_contiguous - check if pbls stored in arr are contiguous * @arr: lvl1 pbl array * @npages: page count * @pg_size: page size * */ static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size) { u32 pg_idx; for (pg_idx = 0; pg_idx < npages; pg_idx++) { if ((*arr + (pg_size * pg_idx)) != arr[pg_idx]) return false; } return true; } /** * irdma_check_mr_contiguous - check if MR is physically contiguous * @palloc: pbl allocation struct * @pg_size: page size */ static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc, u32 pg_size) { struct irdma_pble_level2 *lvl2 = &palloc->level2; struct irdma_pble_info *leaf = lvl2->leaf; u64 *arr = NULL; u64 *start_addr = NULL; int i; bool ret; if (palloc->level == PBLE_LEVEL_1) { arr = palloc->level1.addr; ret = irdma_check_mem_contiguous(arr, palloc->total_cnt, pg_size); return ret; } start_addr = leaf->addr; for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) { arr = leaf->addr; if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr) return false; ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size); if (!ret) return false; } return true; } /** * irdma_setup_pbles - copy user pg address to pble's * @rf: RDMA PCI function * @iwmr: mr pointer for this memory registration * @lvl: requested pble levels */ static int irdma_setup_pbles(struct irdma_pci_f *rf, struct irdma_mr *iwmr, u8 lvl) { struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; struct irdma_pble_info *pinfo; u64 *pbl; int status; enum irdma_pble_level level = PBLE_LEVEL_1; if (lvl) { status = irdma_get_pble(rf->pble_rsrc, palloc, iwmr->page_cnt, lvl); if (status) return status; iwpbl->pbl_allocated = true; level = palloc->level; pinfo = (level == PBLE_LEVEL_1) ? &palloc->level1 : palloc->level2.leaf; pbl = pinfo->addr; } else { pbl = iwmr->pgaddrmem; } irdma_copy_user_pgaddrs(iwmr, pbl, level); if (lvl) iwmr->pgaddrmem[0] = *pbl; return 0; } /** * irdma_handle_q_mem - handle memory for qp and cq * @iwdev: irdma device * @req: information for q memory management * @iwpbl: pble struct * @lvl: pble level mask */ static int irdma_handle_q_mem(struct irdma_device *iwdev, struct irdma_mem_reg_req *req, struct irdma_pbl *iwpbl, u8 lvl) { struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; struct irdma_mr *iwmr = iwpbl->iwmr; struct irdma_qp_mr *qpmr = &iwpbl->qp_mr; struct irdma_cq_mr *cqmr = &iwpbl->cq_mr; struct irdma_hmc_pble *hmc_p; u64 *arr = iwmr->pgaddrmem; u32 pg_size, total; int err = 0; bool ret = true; pg_size = iwmr->page_size; err = irdma_setup_pbles(iwdev->rf, iwmr, lvl); if (err) return err; if (lvl) arr = palloc->level1.addr; switch (iwmr->type) { case IRDMA_MEMREG_TYPE_QP: total = req->sq_pages + req->rq_pages; hmc_p = &qpmr->sq_pbl; qpmr->shadow = (dma_addr_t) arr[total]; if (lvl) { ret = irdma_check_mem_contiguous(arr, req->sq_pages, pg_size); if (ret) ret = irdma_check_mem_contiguous(&arr[req->sq_pages], req->rq_pages, pg_size); } if (!ret) { hmc_p->idx = palloc->level1.idx; hmc_p = &qpmr->rq_pbl; hmc_p->idx = palloc->level1.idx + req->sq_pages; } else { hmc_p->addr = arr[0]; hmc_p = &qpmr->rq_pbl; hmc_p->addr = arr[req->sq_pages]; } break; case IRDMA_MEMREG_TYPE_CQ: hmc_p = &cqmr->cq_pbl; if (!cqmr->split) cqmr->shadow = (dma_addr_t) arr[req->cq_pages]; if (lvl) ret = irdma_check_mem_contiguous(arr, req->cq_pages, pg_size); if (!ret) hmc_p->idx = palloc->level1.idx; else hmc_p->addr = arr[0]; break; default: irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "MR type error\n"); err = -EINVAL; } if (lvl && ret) { irdma_free_pble(iwdev->rf->pble_rsrc, palloc); iwpbl->pbl_allocated = false; } return err; } /** * irdma_hw_alloc_stag - cqp command to allocate stag * @iwdev: irdma device * @iwmr: irdma mr pointer */ int irdma_hw_alloc_stag(struct irdma_device *iwdev, struct irdma_mr *iwmr) { struct irdma_allocate_stag_info *info; struct ib_pd *pd = iwmr->ibmr.pd; struct irdma_pd *iwpd = to_iwpd(pd); struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; int status; cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); if (!cqp_request) return -ENOMEM; cqp_info = &cqp_request->info; info = &cqp_info->in.u.alloc_stag.info; memset(info, 0, sizeof(*info)); info->page_size = PAGE_SIZE; info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; info->pd_id = iwpd->sc_pd.pd_id; info->total_len = iwmr->len; info->all_memory = (pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY) ? true : false; info->remote_access = true; cqp_info->cqp_cmd = IRDMA_OP_ALLOC_STAG; cqp_info->post_sq = 1; cqp_info->in.u.alloc_stag.dev = &iwdev->rf->sc_dev; cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request; status = irdma_handle_cqp_op(iwdev->rf, cqp_request); irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); if (!status) iwmr->is_hwreg = 1; return status; } /** * irdma_set_page - populate pbl list for fmr * @ibmr: ib mem to access iwarp mr pointer * @addr: page dma address fro pbl list */ static int irdma_set_page(struct ib_mr *ibmr, u64 addr) { struct irdma_mr *iwmr = to_iwmr(ibmr); struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; u64 *pbl; if (unlikely(iwmr->npages == iwmr->page_cnt)) return -ENOMEM; if (palloc->level == PBLE_LEVEL_2) { struct irdma_pble_info *palloc_info = palloc->level2.leaf + (iwmr->npages >> PBLE_512_SHIFT); palloc_info->addr[iwmr->npages & (PBLE_PER_PAGE - 1)] = addr; } else { pbl = palloc->level1.addr; pbl[iwmr->npages] = addr; } iwmr->npages++; return 0; } /** * irdma_map_mr_sg - map of sg list for fmr * @ibmr: ib mem to access iwarp mr pointer * @sg: scatter gather list * @sg_nents: number of sg pages * @sg_offset: scatter gather list for fmr */ static int irdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset) { struct irdma_mr *iwmr = to_iwmr(ibmr); iwmr->npages = 0; return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, irdma_set_page); } /** * irdma_hwreg_mr - send cqp command for memory registration * @iwdev: irdma device * @iwmr: irdma mr pointer * @access: access for MR */ int irdma_hwreg_mr(struct irdma_device *iwdev, struct irdma_mr *iwmr, u16 access) { struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_reg_ns_stag_info *stag_info; struct ib_pd *pd = iwmr->ibmr.pd; struct irdma_pd *iwpd = to_iwpd(pd); struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; int ret; cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); if (!cqp_request) return -ENOMEM; cqp_info = &cqp_request->info; stag_info = &cqp_info->in.u.mr_reg_non_shared.info; memset(stag_info, 0, sizeof(*stag_info)); stag_info->va = iwpbl->user_base; stag_info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; stag_info->stag_key = (u8)iwmr->stag; stag_info->total_len = iwmr->len; stag_info->all_memory = (pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY) ? true : false; stag_info->access_rights = irdma_get_mr_access(access, iwdev->rf->sc_dev.hw_attrs.uk_attrs.hw_rev); stag_info->pd_id = iwpd->sc_pd.pd_id; if (stag_info->access_rights & IRDMA_ACCESS_FLAGS_ZERO_BASED) stag_info->addr_type = IRDMA_ADDR_TYPE_ZERO_BASED; else stag_info->addr_type = IRDMA_ADDR_TYPE_VA_BASED; stag_info->page_size = iwmr->page_size; if (iwpbl->pbl_allocated) { if (palloc->level == PBLE_LEVEL_1) { stag_info->first_pm_pbl_index = palloc->level1.idx; stag_info->chunk_size = 1; } else { stag_info->first_pm_pbl_index = palloc->level2.root.idx; stag_info->chunk_size = 3; } } else { stag_info->reg_addr_pa = iwmr->pgaddrmem[0]; } cqp_info->cqp_cmd = IRDMA_OP_MR_REG_NON_SHARED; cqp_info->post_sq = 1; cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->rf->sc_dev; cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request; ret = irdma_handle_cqp_op(iwdev->rf, cqp_request); irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); if (!ret) iwmr->is_hwreg = 1; return ret; } /* * irdma_alloc_iwmr - Allocate iwmr @region - memory region @pd - protection domain @virt - virtual address @reg_type - * registration type */ static struct irdma_mr * irdma_alloc_iwmr(struct ib_umem *region, struct ib_pd *pd, u64 virt, enum irdma_memreg_type reg_type) { struct irdma_pbl *iwpbl; struct irdma_mr *iwmr; iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); if (!iwmr) return ERR_PTR(-ENOMEM); iwpbl = &iwmr->iwpbl; iwpbl->iwmr = iwmr; iwmr->region = region; iwmr->ibmr.pd = pd; iwmr->ibmr.device = pd->device; iwmr->ibmr.iova = virt; iwmr->type = reg_type; /* Some OOT versions of irdma_copy_user_pg_addr require the pg mask */ iwmr->page_msk = ~(IRDMA_HW_PAGE_SIZE - 1); iwmr->page_size = IRDMA_HW_PAGE_SIZE; iwmr->len = region->length; iwpbl->user_base = virt; iwmr->page_cnt = irdma_ib_umem_num_dma_blocks(region, iwmr->page_size, virt); return iwmr; } static void irdma_free_iwmr(struct irdma_mr *iwmr) { kfree(iwmr); } /* * irdma_reg_user_mr_type_mem - Handle memory registration * @iwmr - irdma mr * @access - access rights * @create_stag - flag to create stag or not */ static int irdma_reg_user_mr_type_mem(struct irdma_mr *iwmr, int access, bool create_stag) { struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device); struct irdma_pbl *iwpbl = &iwmr->iwpbl; u32 stag = 0; int err; u8 lvl; lvl = iwmr->page_cnt != 1 ? PBLE_LEVEL_1 | PBLE_LEVEL_2 : PBLE_LEVEL_0; err = irdma_setup_pbles(iwdev->rf, iwmr, lvl); if (err) return err; if (lvl) { err = irdma_check_mr_contiguous(&iwpbl->pble_alloc, iwmr->page_size); if (err) { irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc); iwpbl->pbl_allocated = false; } } if (create_stag) { stag = irdma_create_stag(iwdev); if (!stag) { err = -ENOMEM; goto free_pble; } iwmr->stag = stag; iwmr->ibmr.rkey = stag; iwmr->ibmr.lkey = stag; } iwmr->access = access; err = irdma_hwreg_mr(iwdev, iwmr, access); if (err) goto err_hwreg; return 0; err_hwreg: if (stag) irdma_free_stag(iwdev, stag); free_pble: if (iwpbl->pble_alloc.level != PBLE_LEVEL_0 && iwpbl->pbl_allocated) irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc); return err; } /* * irdma_reg_user_mr_type_qp - Handle QP memory registration @req - memory reg req @udata - user info @iwmr - irdma mr */ static int irdma_reg_user_mr_type_qp(struct irdma_mem_reg_req req, struct ib_udata *udata, struct irdma_mr *iwmr) { struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device); struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_ucontext *ucontext; unsigned long flags; u32 total; int err; u8 lvl; total = req.sq_pages + req.rq_pages + IRDMA_SHADOW_PGCNT; if (total > iwmr->page_cnt) return -EINVAL; total = req.sq_pages + req.rq_pages; lvl = total > 2 ? PBLE_LEVEL_1 : PBLE_LEVEL_0; err = irdma_handle_q_mem(iwdev, &req, iwpbl, lvl); if (err) return err; ucontext = to_ucontext(iwmr->ibmr.pd->uobject->context); spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list); iwpbl->on_list = true; spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); return 0; } /* * irdma_reg_user_mr_type_cq - Handle CQ memory registration @req - memory reg req @udata - user info @iwmr - irdma mr */ static int irdma_reg_user_mr_type_cq(struct irdma_mem_reg_req req, struct ib_udata *udata, struct irdma_mr *iwmr) { struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device); struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_ucontext *ucontext; unsigned long flags; u32 total; int err; u8 lvl; total = req.cq_pages + ((iwdev->rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE) ? 0 : IRDMA_SHADOW_PGCNT); if (total > iwmr->page_cnt) return -EINVAL; lvl = req.cq_pages > 1 ? PBLE_LEVEL_1 : PBLE_LEVEL_0; err = irdma_handle_q_mem(iwdev, &req, iwpbl, lvl); if (err) return err; ucontext = to_ucontext(iwmr->ibmr.pd->uobject->context); spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list); iwpbl->on_list = true; spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); return 0; } /** * irdma_reg_user_mr - Register a user memory region * @pd: ptr of pd * @start: virtual start address * @len: length of mr * @virt: virtual address * @access: access of mr * @udata: user data */ static struct ib_mr * irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len, u64 virt, int access, struct ib_udata *udata) { #define IRDMA_MEM_REG_MIN_REQ_LEN offsetofend(struct irdma_mem_reg_req, sq_pages) struct irdma_device *iwdev = to_iwdev(pd->device); struct irdma_mem_reg_req req = {}; struct ib_umem *region; struct irdma_mr *iwmr; int err; if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size) return ERR_PTR(-EINVAL); if (udata->inlen < IRDMA_MEM_REG_MIN_REQ_LEN) return ERR_PTR(-EINVAL); region = ib_umem_get(pd->uobject->context, start, len, access, 0); if (IS_ERR(region)) { irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "Failed to create ib_umem region\n"); return (struct ib_mr *)region; } if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) { ib_umem_release(region); return ERR_PTR(-EFAULT); } iwmr = irdma_alloc_iwmr(region, pd, virt, req.reg_type); if (IS_ERR(iwmr)) { ib_umem_release(region); return (struct ib_mr *)iwmr; } switch (req.reg_type) { case IRDMA_MEMREG_TYPE_QP: err = irdma_reg_user_mr_type_qp(req, udata, iwmr); if (err) goto error; break; case IRDMA_MEMREG_TYPE_CQ: err = irdma_reg_user_mr_type_cq(req, udata, iwmr); if (err) goto error; break; case IRDMA_MEMREG_TYPE_MEM: err = irdma_reg_user_mr_type_mem(iwmr, access, true); if (err) goto error; break; default: err = -EINVAL; goto error; } return &iwmr->ibmr; error: ib_umem_release(region); irdma_free_iwmr(iwmr); return ERR_PTR(err); } int irdma_hwdereg_mr(struct ib_mr *ib_mr) { struct irdma_device *iwdev = to_iwdev(ib_mr->device); struct irdma_mr *iwmr = to_iwmr(ib_mr); struct irdma_pd *iwpd = to_iwpd(ib_mr->pd); struct irdma_dealloc_stag_info *info; struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; int status; /* * Skip HW MR de-register when it is already de-registered during an MR re-reregister and the re-registration * fails */ if (!iwmr->is_hwreg) return 0; cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); if (!cqp_request) return -ENOMEM; cqp_info = &cqp_request->info; info = &cqp_info->in.u.dealloc_stag.info; memset(info, 0, sizeof(*info)); info->pd_id = iwpd->sc_pd.pd_id; info->stag_idx = RS_64_1(ib_mr->rkey, IRDMA_CQPSQ_STAG_IDX_S); info->mr = true; if (iwpbl->pbl_allocated) info->dealloc_pbl = true; cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG; cqp_info->post_sq = 1; cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev; cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request; status = irdma_handle_cqp_op(iwdev->rf, cqp_request); irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); if (!status) iwmr->is_hwreg = 0; return status; } /* * irdma_rereg_mr_trans - Re-register a user MR for a change translation. @iwmr: ptr of iwmr @start: virtual start * address @len: length of mr @virt: virtual address * * Re-register a user memory region when a change translation is requested. Re-register a new region while reusing the * stag from the original registration. */ struct ib_mr * irdma_rereg_mr_trans(struct irdma_mr *iwmr, u64 start, u64 len, u64 virt, struct ib_udata *udata) { struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device); struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct ib_pd *pd = iwmr->ibmr.pd; struct ib_umem *region; int err; region = ib_umem_get(pd->uobject->context, start, len, iwmr->access, 0); if (IS_ERR(region)) { irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "Failed to create ib_umem region\n"); return (struct ib_mr *)region; } iwmr->region = region; iwmr->ibmr.iova = virt; iwmr->ibmr.pd = pd; iwmr->page_size = PAGE_SIZE; iwmr->len = region->length; iwpbl->user_base = virt; iwmr->page_cnt = irdma_ib_umem_num_dma_blocks(region, iwmr->page_size, virt); err = irdma_reg_user_mr_type_mem(iwmr, iwmr->access, false); if (err) goto err; return &iwmr->ibmr; err: ib_umem_release(region); return ERR_PTR(err); } /** * irdma_reg_phys_mr - register kernel physical memory * @pd: ibpd pointer * @addr: physical address of memory to register * @size: size of memory to register * @access: Access rights * @iova_start: start of virtual address for physical buffers */ struct ib_mr * irdma_reg_phys_mr(struct ib_pd *pd, u64 addr, u64 size, int access, u64 *iova_start) { struct irdma_device *iwdev = to_iwdev(pd->device); struct irdma_pbl *iwpbl; struct irdma_mr *iwmr; u32 stag; int ret; iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); if (!iwmr) return ERR_PTR(-ENOMEM); iwmr->ibmr.pd = pd; iwmr->ibmr.device = pd->device; iwpbl = &iwmr->iwpbl; iwpbl->iwmr = iwmr; iwmr->type = IRDMA_MEMREG_TYPE_MEM; iwpbl->user_base = *iova_start; stag = irdma_create_stag(iwdev); if (!stag) { ret = -ENOMEM; goto err; } iwmr->stag = stag; iwmr->ibmr.iova = *iova_start; iwmr->ibmr.rkey = stag; iwmr->ibmr.lkey = stag; iwmr->page_cnt = 1; iwmr->pgaddrmem[0] = addr; iwmr->len = size; iwmr->page_size = SZ_4K; ret = irdma_hwreg_mr(iwdev, iwmr, access); if (ret) { irdma_free_stag(iwdev, stag); goto err; } return &iwmr->ibmr; err: kfree(iwmr); return ERR_PTR(ret); } /** * irdma_get_dma_mr - register physical mem * @pd: ptr of pd * @acc: access for memory */ static struct ib_mr * irdma_get_dma_mr(struct ib_pd *pd, int acc) { u64 kva = 0; return irdma_reg_phys_mr(pd, 0, 0, acc, &kva); } /** * irdma_del_memlist - Deleting pbl list entries for CQ/QP * @iwmr: iwmr for IB's user page addresses * @ucontext: ptr to user context */ void irdma_del_memlist(struct irdma_mr *iwmr, struct irdma_ucontext *ucontext) { struct irdma_pbl *iwpbl = &iwmr->iwpbl; unsigned long flags; switch (iwmr->type) { case IRDMA_MEMREG_TYPE_CQ: spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); if (iwpbl->on_list) { iwpbl->on_list = false; list_del(&iwpbl->list); } spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); break; case IRDMA_MEMREG_TYPE_QP: spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); if (iwpbl->on_list) { iwpbl->on_list = false; list_del(&iwpbl->list); } spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); break; default: break; } } /** * irdma_post_send - kernel application wr * @ibqp: qp ptr for wr * @ib_wr: work request ptr * @bad_wr: return of bad wr if err */ static int irdma_post_send(struct ib_qp *ibqp, const struct ib_send_wr *ib_wr, const struct ib_send_wr **bad_wr) { struct irdma_qp *iwqp; struct irdma_qp_uk *ukqp; struct irdma_sc_dev *dev; struct irdma_post_sq_info info; int err = 0; unsigned long flags; bool inv_stag; struct irdma_ah *ah; iwqp = to_iwqp(ibqp); ukqp = &iwqp->sc_qp.qp_uk; dev = &iwqp->iwdev->rf->sc_dev; spin_lock_irqsave(&iwqp->lock, flags); while (ib_wr) { memset(&info, 0, sizeof(info)); inv_stag = false; info.wr_id = (ib_wr->wr_id); if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all) info.signaled = true; if (ib_wr->send_flags & IB_SEND_FENCE) info.read_fence = true; switch (ib_wr->opcode) { case IB_WR_SEND_WITH_IMM: if (ukqp->qp_caps & IRDMA_SEND_WITH_IMM) { info.imm_data_valid = true; info.imm_data = ntohl(ib_wr->ex.imm_data); } else { err = -EINVAL; break; } /* fallthrough */ case IB_WR_SEND: case IB_WR_SEND_WITH_INV: if (ib_wr->opcode == IB_WR_SEND || ib_wr->opcode == IB_WR_SEND_WITH_IMM) { if (ib_wr->send_flags & IB_SEND_SOLICITED) info.op_type = IRDMA_OP_TYPE_SEND_SOL; else info.op_type = IRDMA_OP_TYPE_SEND; } else { if (ib_wr->send_flags & IB_SEND_SOLICITED) info.op_type = IRDMA_OP_TYPE_SEND_SOL_INV; else info.op_type = IRDMA_OP_TYPE_SEND_INV; info.stag_to_inv = ib_wr->ex.invalidate_rkey; } info.op.send.num_sges = ib_wr->num_sge; info.op.send.sg_list = ib_wr->sg_list; if (iwqp->ibqp.qp_type == IB_QPT_UD || iwqp->ibqp.qp_type == IB_QPT_GSI) { ah = to_iwah(ud_wr(ib_wr)->ah); info.op.send.ah_id = ah->sc_ah.ah_info.ah_idx; info.op.send.qkey = ud_wr(ib_wr)->remote_qkey; info.op.send.dest_qp = ud_wr(ib_wr)->remote_qpn; } if (ib_wr->send_flags & IB_SEND_INLINE) err = irdma_uk_inline_send(ukqp, &info, false); else err = irdma_uk_send(ukqp, &info, false); break; case IB_WR_RDMA_WRITE_WITH_IMM: if (ukqp->qp_caps & IRDMA_WRITE_WITH_IMM) { info.imm_data_valid = true; info.imm_data = ntohl(ib_wr->ex.imm_data); } else { err = -EINVAL; break; } /* fallthrough */ case IB_WR_RDMA_WRITE: if (ib_wr->send_flags & IB_SEND_SOLICITED) info.op_type = IRDMA_OP_TYPE_RDMA_WRITE_SOL; else info.op_type = IRDMA_OP_TYPE_RDMA_WRITE; info.op.rdma_write.num_lo_sges = ib_wr->num_sge; info.op.rdma_write.lo_sg_list = (void *)ib_wr->sg_list; info.op.rdma_write.rem_addr.addr = rdma_wr(ib_wr)->remote_addr; info.op.rdma_write.rem_addr.lkey = rdma_wr(ib_wr)->rkey; if (ib_wr->send_flags & IB_SEND_INLINE) err = irdma_uk_inline_rdma_write(ukqp, &info, false); else err = irdma_uk_rdma_write(ukqp, &info, false); break; case IB_WR_RDMA_READ_WITH_INV: inv_stag = true; /* fallthrough */ case IB_WR_RDMA_READ: if (ib_wr->num_sge > dev->hw_attrs.uk_attrs.max_hw_read_sges) { err = -EINVAL; break; } info.op_type = IRDMA_OP_TYPE_RDMA_READ; info.op.rdma_read.rem_addr.addr = rdma_wr(ib_wr)->remote_addr; info.op.rdma_read.rem_addr.lkey = rdma_wr(ib_wr)->rkey; info.op.rdma_read.lo_sg_list = (void *)ib_wr->sg_list; info.op.rdma_read.num_lo_sges = ib_wr->num_sge; err = irdma_uk_rdma_read(ukqp, &info, inv_stag, false); break; case IB_WR_LOCAL_INV: info.op_type = IRDMA_OP_TYPE_INV_STAG; info.local_fence = info.read_fence; info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey; err = irdma_uk_stag_local_invalidate(ukqp, &info, true); break; case IB_WR_REG_MR:{ struct irdma_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr); struct irdma_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc; struct irdma_fast_reg_stag_info stag_info = {0}; stag_info.signaled = info.signaled; stag_info.read_fence = info.read_fence; stag_info.access_rights = irdma_get_mr_access(reg_wr(ib_wr)->access, dev->hw_attrs.uk_attrs.hw_rev); stag_info.stag_key = reg_wr(ib_wr)->key & 0xff; stag_info.stag_idx = reg_wr(ib_wr)->key >> 8; stag_info.page_size = reg_wr(ib_wr)->mr->page_size; stag_info.wr_id = ib_wr->wr_id; stag_info.addr_type = IRDMA_ADDR_TYPE_VA_BASED; stag_info.va = (void *)(uintptr_t)iwmr->ibmr.iova; stag_info.total_len = iwmr->ibmr.length; if (palloc->level == PBLE_LEVEL_2) { stag_info.chunk_size = 3; stag_info.first_pm_pbl_index = palloc->level2.root.idx; } else { stag_info.chunk_size = 1; stag_info.first_pm_pbl_index = palloc->level1.idx; } stag_info.local_fence = ib_wr->send_flags & IB_SEND_FENCE; err = irdma_sc_mr_fast_register(&iwqp->sc_qp, &stag_info, true); break; } default: err = -EINVAL; irdma_debug(&iwqp->iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "upost_send bad opcode = 0x%x\n", ib_wr->opcode); break; } if (err) break; ib_wr = ib_wr->next; } if (!iwqp->flush_issued) { if (iwqp->hw_iwarp_state <= IRDMA_QP_STATE_RTS) irdma_uk_qp_post_wr(ukqp); spin_unlock_irqrestore(&iwqp->lock, flags); } else { spin_unlock_irqrestore(&iwqp->lock, flags); irdma_sched_qp_flush_work(iwqp); } if (err) *bad_wr = ib_wr; return err; } /** * irdma_post_recv - post receive wr for kernel application * @ibqp: ib qp pointer * @ib_wr: work request for receive * @bad_wr: bad wr caused an error */ static int irdma_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *ib_wr, const struct ib_recv_wr **bad_wr) { struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_qp_uk *ukqp = &iwqp->sc_qp.qp_uk; struct irdma_post_rq_info post_recv = {0}; unsigned long flags; int err = 0; spin_lock_irqsave(&iwqp->lock, flags); while (ib_wr) { if (ib_wr->num_sge > ukqp->max_rq_frag_cnt) { err = -EINVAL; goto out; } post_recv.num_sges = ib_wr->num_sge; post_recv.wr_id = ib_wr->wr_id; post_recv.sg_list = ib_wr->sg_list; err = irdma_uk_post_receive(ukqp, &post_recv); if (err) { irdma_debug(&iwqp->iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "post_recv err %d\n", err); goto out; } ib_wr = ib_wr->next; } out: spin_unlock_irqrestore(&iwqp->lock, flags); if (iwqp->flush_issued) irdma_sched_qp_flush_work(iwqp); if (err) *bad_wr = ib_wr; return err; } /** * irdma_flush_err_to_ib_wc_status - return change flush error code to IB status * @opcode: iwarp flush code */ static enum ib_wc_status irdma_flush_err_to_ib_wc_status(enum irdma_flush_opcode opcode) { switch (opcode) { case FLUSH_PROT_ERR: return IB_WC_LOC_PROT_ERR; case FLUSH_REM_ACCESS_ERR: return IB_WC_REM_ACCESS_ERR; case FLUSH_LOC_QP_OP_ERR: return IB_WC_LOC_QP_OP_ERR; case FLUSH_REM_OP_ERR: return IB_WC_REM_OP_ERR; case FLUSH_LOC_LEN_ERR: return IB_WC_LOC_LEN_ERR; case FLUSH_GENERAL_ERR: return IB_WC_WR_FLUSH_ERR; case FLUSH_MW_BIND_ERR: return IB_WC_MW_BIND_ERR; case FLUSH_REM_INV_REQ_ERR: return IB_WC_REM_INV_REQ_ERR; case FLUSH_RETRY_EXC_ERR: return IB_WC_RETRY_EXC_ERR; case FLUSH_FATAL_ERR: default: return IB_WC_FATAL_ERR; } } /** * irdma_process_cqe - process cqe info * @entry: processed cqe * @cq_poll_info: cqe info */ static void irdma_process_cqe(struct ib_wc *entry, struct irdma_cq_poll_info *cq_poll_info) { struct irdma_sc_qp *qp; entry->wc_flags = 0; entry->pkey_index = 0; entry->wr_id = cq_poll_info->wr_id; qp = cq_poll_info->qp_handle; entry->qp = qp->qp_uk.back_qp; if (cq_poll_info->error) { entry->status = (cq_poll_info->comp_status == IRDMA_COMPL_STATUS_FLUSHED) ? irdma_flush_err_to_ib_wc_status(cq_poll_info->minor_err) : IB_WC_GENERAL_ERR; entry->vendor_err = cq_poll_info->major_err << 16 | cq_poll_info->minor_err; } else { entry->status = IB_WC_SUCCESS; if (cq_poll_info->imm_valid) { entry->ex.imm_data = htonl(cq_poll_info->imm_data); entry->wc_flags |= IB_WC_WITH_IMM; } if (cq_poll_info->ud_smac_valid) { ether_addr_copy(entry->smac, cq_poll_info->ud_smac); entry->wc_flags |= IB_WC_WITH_SMAC; } if (cq_poll_info->ud_vlan_valid) { u16 vlan = cq_poll_info->ud_vlan & EVL_VLID_MASK; entry->sl = cq_poll_info->ud_vlan >> VLAN_PRIO_SHIFT; if (vlan) { entry->vlan_id = vlan; entry->wc_flags |= IB_WC_WITH_VLAN; } } else { entry->sl = 0; } } if (cq_poll_info->q_type == IRDMA_CQE_QTYPE_SQ) { set_ib_wc_op_sq(cq_poll_info, entry); } else { set_ib_wc_op_rq(cq_poll_info, entry, qp->qp_uk.qp_caps & IRDMA_SEND_WITH_IMM ? true : false); if (qp->qp_uk.qp_type != IRDMA_QP_TYPE_ROCE_UD && cq_poll_info->stag_invalid_set) { entry->ex.invalidate_rkey = cq_poll_info->inv_stag; entry->wc_flags |= IB_WC_WITH_INVALIDATE; } } if (qp->qp_uk.qp_type == IRDMA_QP_TYPE_ROCE_UD) { entry->src_qp = cq_poll_info->ud_src_qpn; entry->slid = 0; entry->wc_flags |= (IB_WC_GRH | IB_WC_WITH_NETWORK_HDR_TYPE); entry->network_hdr_type = cq_poll_info->ipv4 ? RDMA_NETWORK_IPV4 : RDMA_NETWORK_IPV6; } else { entry->src_qp = cq_poll_info->qp_id; } entry->byte_len = cq_poll_info->bytes_xfered; } /** * irdma_poll_one - poll one entry of the CQ * @ukcq: ukcq to poll * @cur_cqe: current CQE info to be filled in * @entry: ibv_wc object to be filled for non-extended CQ or NULL for extended CQ * * Returns the internal irdma device error code or 0 on success */ static inline int irdma_poll_one(struct irdma_cq_uk *ukcq, struct irdma_cq_poll_info *cur_cqe, struct ib_wc *entry) { int ret = irdma_uk_cq_poll_cmpl(ukcq, cur_cqe); if (ret) return ret; irdma_process_cqe(entry, cur_cqe); return 0; } /** * __irdma_poll_cq - poll cq for completion (kernel apps) * @iwcq: cq to poll * @num_entries: number of entries to poll * @entry: wr of a completed entry */ static int __irdma_poll_cq(struct irdma_cq *iwcq, int num_entries, struct ib_wc *entry) { struct list_head *tmp_node, *list_node; struct irdma_cq_buf *last_buf = NULL; struct irdma_cq_poll_info *cur_cqe = &iwcq->cur_cqe; struct irdma_cq_buf *cq_buf; int ret; struct irdma_device *iwdev; struct irdma_cq_uk *ukcq; bool cq_new_cqe = false; int resized_bufs = 0; int npolled = 0; iwdev = to_iwdev(iwcq->ibcq.device); ukcq = &iwcq->sc_cq.cq_uk; /* go through the list of previously resized CQ buffers */ list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) { cq_buf = container_of(list_node, struct irdma_cq_buf, list); while (npolled < num_entries) { ret = irdma_poll_one(&cq_buf->cq_uk, cur_cqe, entry + npolled); if (!ret) { ++npolled; cq_new_cqe = true; continue; } if (ret == -ENOENT) break; /* QP using the CQ is destroyed. Skip reporting this CQE */ if (ret == -EFAULT) { cq_new_cqe = true; continue; } goto error; } /* save the resized CQ buffer which received the last cqe */ if (cq_new_cqe) last_buf = cq_buf; cq_new_cqe = false; } /* check the current CQ for new cqes */ while (npolled < num_entries) { ret = irdma_poll_one(ukcq, cur_cqe, entry + npolled); if (ret == -ENOENT) { ret = irdma_generated_cmpls(iwcq, cur_cqe); if (!ret) irdma_process_cqe(entry + npolled, cur_cqe); } if (!ret) { ++npolled; cq_new_cqe = true; continue; } if (ret == -ENOENT) break; /* QP using the CQ is destroyed. Skip reporting this CQE */ if (ret == -EFAULT) { cq_new_cqe = true; continue; } goto error; } if (cq_new_cqe) /* all previous CQ resizes are complete */ resized_bufs = irdma_process_resize_list(iwcq, iwdev, NULL); else if (last_buf) /* only CQ resizes up to the last_buf are complete */ resized_bufs = irdma_process_resize_list(iwcq, iwdev, last_buf); if (resized_bufs) /* report to the HW the number of complete CQ resizes */ irdma_uk_cq_set_resized_cnt(ukcq, resized_bufs); return npolled; error: irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "%s: Error polling CQ, irdma_err: %d\n", __func__, ret); return ret; } /** * irdma_poll_cq - poll cq for completion (kernel apps) * @ibcq: cq to poll * @num_entries: number of entries to poll * @entry: wr of a completed entry */ static int irdma_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) { struct irdma_cq *iwcq; unsigned long flags; int ret; iwcq = to_iwcq(ibcq); spin_lock_irqsave(&iwcq->lock, flags); ret = __irdma_poll_cq(iwcq, num_entries, entry); spin_unlock_irqrestore(&iwcq->lock, flags); return ret; } /** * irdma_req_notify_cq - arm cq kernel application * @ibcq: cq to arm * @notify_flags: notofication flags */ static int irdma_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags) { struct irdma_cq *iwcq; struct irdma_cq_uk *ukcq; unsigned long flags; enum irdma_cmpl_notify cq_notify = IRDMA_CQ_COMPL_EVENT; bool promo_event = false; int ret = 0; iwcq = to_iwcq(ibcq); ukcq = &iwcq->sc_cq.cq_uk; spin_lock_irqsave(&iwcq->lock, flags); if (notify_flags == IB_CQ_SOLICITED) { cq_notify = IRDMA_CQ_COMPL_SOLICITED; } else { if (iwcq->last_notify == IRDMA_CQ_COMPL_SOLICITED) promo_event = true; } if (!atomic_cmpxchg(&iwcq->armed, 0, 1) || promo_event) { iwcq->last_notify = cq_notify; irdma_uk_cq_request_notification(ukcq, cq_notify); } if ((notify_flags & IB_CQ_REPORT_MISSED_EVENTS) && (!irdma_cq_empty(iwcq) || !list_empty(&iwcq->cmpl_generated))) ret = 1; spin_unlock_irqrestore(&iwcq->lock, flags); return ret; } /** * mcast_list_add - Add a new mcast item to list * @rf: RDMA PCI function * @new_elem: pointer to element to add */ static void mcast_list_add(struct irdma_pci_f *rf, struct mc_table_list *new_elem) { list_add(&new_elem->list, &rf->mc_qht_list.list); } /** * mcast_list_del - Remove an mcast item from list * @mc_qht_elem: pointer to mcast table list element */ static void mcast_list_del(struct mc_table_list *mc_qht_elem) { if (mc_qht_elem) list_del(&mc_qht_elem->list); } /** * mcast_list_lookup_ip - Search mcast list for address * @rf: RDMA PCI function * @ip_mcast: pointer to mcast IP address */ static struct mc_table_list * mcast_list_lookup_ip(struct irdma_pci_f *rf, u32 *ip_mcast) { struct mc_table_list *mc_qht_el; struct list_head *pos, *q; list_for_each_safe(pos, q, &rf->mc_qht_list.list) { mc_qht_el = list_entry(pos, struct mc_table_list, list); if (!memcmp(mc_qht_el->mc_info.dest_ip, ip_mcast, sizeof(mc_qht_el->mc_info.dest_ip))) return mc_qht_el; } return NULL; } /** * irdma_mcast_cqp_op - perform a mcast cqp operation * @iwdev: irdma device * @mc_grp_ctx: mcast group info * @op: operation * * returns error status */ static int irdma_mcast_cqp_op(struct irdma_device *iwdev, struct irdma_mcast_grp_info *mc_grp_ctx, u8 op) { struct cqp_cmds_info *cqp_info; struct irdma_cqp_request *cqp_request; int status; cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); if (!cqp_request) return -ENOMEM; cqp_request->info.in.u.mc_create.info = *mc_grp_ctx; cqp_info = &cqp_request->info; cqp_info->cqp_cmd = op; cqp_info->post_sq = 1; cqp_info->in.u.mc_create.scratch = (uintptr_t)cqp_request; cqp_info->in.u.mc_create.cqp = &iwdev->rf->cqp.sc_cqp; status = irdma_handle_cqp_op(iwdev->rf, cqp_request); irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); return status; } /** * irdma_attach_mcast - attach a qp to a multicast group * @ibqp: ptr to qp * @ibgid: pointer to global ID * @lid: local ID * * returns error status */ static int irdma_attach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid) { struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_device *iwdev = iwqp->iwdev; struct irdma_pci_f *rf = iwdev->rf; struct mc_table_list *mc_qht_elem; struct irdma_mcast_grp_ctx_entry_info mcg_info = {0}; unsigned long flags; u32 ip_addr[4] = {0}; u32 mgn; u32 no_mgs; int ret = 0; bool ipv4; u16 vlan_id; union irdma_sockaddr sgid_addr; unsigned char dmac[ETHER_ADDR_LEN]; rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid); if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid)) { irdma_copy_ip_ntohl(ip_addr, sgid_addr.saddr_in6.sin6_addr.__u6_addr.__u6_addr32); irdma_get_vlan_mac_ipv6(iwqp->cm_id, ip_addr, &vlan_id, NULL); ipv4 = false; irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "qp_id=%d, IP6address=%x:%x:%x:%x\n", ibqp->qp_num, IRDMA_PRINT_IP6(ip_addr)); irdma_mcast_mac_v6(ip_addr, dmac); } else { ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); ipv4 = true; vlan_id = irdma_get_vlan_ipv4(iwqp->cm_id, ip_addr); irdma_mcast_mac_v4(ip_addr, dmac); irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "qp_id=%d, IP4address=%x, MAC=%x:%x:%x:%x:%x:%x\n", ibqp->qp_num, ip_addr[0], dmac[0], dmac[1], dmac[2], dmac[3], dmac[4], dmac[5]); } spin_lock_irqsave(&rf->qh_list_lock, flags); mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr); if (!mc_qht_elem) { struct irdma_dma_mem *dma_mem_mc; spin_unlock_irqrestore(&rf->qh_list_lock, flags); mc_qht_elem = kzalloc(sizeof(*mc_qht_elem), GFP_KERNEL); if (!mc_qht_elem) return -ENOMEM; mc_qht_elem->mc_info.ipv4_valid = ipv4; memcpy(mc_qht_elem->mc_info.dest_ip, ip_addr, sizeof(mc_qht_elem->mc_info.dest_ip)); ret = irdma_alloc_rsrc(rf, rf->allocated_mcgs, rf->max_mcg, &mgn, &rf->next_mcg); if (ret) { kfree(mc_qht_elem); return -ENOMEM; } mc_qht_elem->mc_info.mgn = mgn; dma_mem_mc = &mc_qht_elem->mc_grp_ctx.dma_mem_mc; dma_mem_mc->size = sizeof(u64)* IRDMA_MAX_MGS_PER_CTX; dma_mem_mc->va = irdma_allocate_dma_mem(&rf->hw, dma_mem_mc, dma_mem_mc->size, IRDMA_HW_PAGE_SIZE); if (!dma_mem_mc->va) { irdma_free_rsrc(rf, rf->allocated_mcgs, mgn); kfree(mc_qht_elem); return -ENOMEM; } mc_qht_elem->mc_grp_ctx.mg_id = (u16)mgn; memcpy(mc_qht_elem->mc_grp_ctx.dest_ip_addr, ip_addr, sizeof(mc_qht_elem->mc_grp_ctx.dest_ip_addr)); mc_qht_elem->mc_grp_ctx.ipv4_valid = ipv4; mc_qht_elem->mc_grp_ctx.vlan_id = vlan_id; if (vlan_id < VLAN_N_VID) mc_qht_elem->mc_grp_ctx.vlan_valid = true; mc_qht_elem->mc_grp_ctx.hmc_fcn_id = iwdev->rf->sc_dev.hmc_fn_id; mc_qht_elem->mc_grp_ctx.qs_handle = iwqp->sc_qp.vsi->qos[iwqp->sc_qp.user_pri].qs_handle; ether_addr_copy(mc_qht_elem->mc_grp_ctx.dest_mac_addr, dmac); spin_lock_irqsave(&rf->qh_list_lock, flags); mcast_list_add(rf, mc_qht_elem); } else { if (mc_qht_elem->mc_grp_ctx.no_of_mgs == IRDMA_MAX_MGS_PER_CTX) { spin_unlock_irqrestore(&rf->qh_list_lock, flags); return -ENOMEM; } } mcg_info.qp_id = iwqp->ibqp.qp_num; no_mgs = mc_qht_elem->mc_grp_ctx.no_of_mgs; irdma_sc_add_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info); spin_unlock_irqrestore(&rf->qh_list_lock, flags); /* Only if there is a change do we need to modify or create */ if (!no_mgs) { ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, IRDMA_OP_MC_CREATE); } else if (no_mgs != mc_qht_elem->mc_grp_ctx.no_of_mgs) { ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, IRDMA_OP_MC_MODIFY); } else { return 0; } if (ret) goto error; return 0; error: irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info); if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) { mcast_list_del(mc_qht_elem); irdma_free_dma_mem(&rf->hw, &mc_qht_elem->mc_grp_ctx.dma_mem_mc); irdma_free_rsrc(rf, rf->allocated_mcgs, mc_qht_elem->mc_grp_ctx.mg_id); kfree(mc_qht_elem); } return ret; } /** * irdma_detach_mcast - detach a qp from a multicast group * @ibqp: ptr to qp * @ibgid: pointer to global ID * @lid: local ID * * returns error status */ static int irdma_detach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid) { struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_device *iwdev = iwqp->iwdev; struct irdma_pci_f *rf = iwdev->rf; u32 ip_addr[4] = {0}; struct mc_table_list *mc_qht_elem; struct irdma_mcast_grp_ctx_entry_info mcg_info = {0}; int ret; unsigned long flags; union irdma_sockaddr sgid_addr; rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid); if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid)) irdma_copy_ip_ntohl(ip_addr, sgid_addr.saddr_in6.sin6_addr.__u6_addr.__u6_addr32); else ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); spin_lock_irqsave(&rf->qh_list_lock, flags); mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr); if (!mc_qht_elem) { spin_unlock_irqrestore(&rf->qh_list_lock, flags); irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "address not found MCG\n"); return 0; } mcg_info.qp_id = iwqp->ibqp.qp_num; irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info); if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) { mcast_list_del(mc_qht_elem); spin_unlock_irqrestore(&rf->qh_list_lock, flags); ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, IRDMA_OP_MC_DESTROY); if (ret) { irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "failed MC_DESTROY MCG\n"); spin_lock_irqsave(&rf->qh_list_lock, flags); mcast_list_add(rf, mc_qht_elem); spin_unlock_irqrestore(&rf->qh_list_lock, flags); return -EAGAIN; } irdma_free_dma_mem(&rf->hw, &mc_qht_elem->mc_grp_ctx.dma_mem_mc); irdma_free_rsrc(rf, rf->allocated_mcgs, mc_qht_elem->mc_grp_ctx.mg_id); kfree(mc_qht_elem); } else { spin_unlock_irqrestore(&rf->qh_list_lock, flags); ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, IRDMA_OP_MC_MODIFY); if (ret) { irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "failed Modify MCG\n"); return ret; } } return 0; } /** * irdma_query_ah - Query address handle * @ibah: pointer to address handle * @ah_attr: address handle attributes */ static int irdma_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr) { struct irdma_ah *ah = to_iwah(ibah); memset(ah_attr, 0, sizeof(*ah_attr)); if (ah->av.attrs.ah_flags & IB_AH_GRH) { ah_attr->ah_flags = IB_AH_GRH; ah_attr->grh.flow_label = ah->sc_ah.ah_info.flow_label; ah_attr->grh.traffic_class = ah->sc_ah.ah_info.tc_tos; ah_attr->grh.hop_limit = ah->sc_ah.ah_info.hop_ttl; ah_attr->grh.sgid_index = ah->sgid_index; ah_attr->grh.sgid_index = ah->sgid_index; memcpy(&ah_attr->grh.dgid, &ah->dgid, sizeof(ah_attr->grh.dgid)); } return 0; } static if_t irdma_get_netdev(struct ib_device *ibdev, u8 port_num) { struct irdma_device *iwdev = to_iwdev(ibdev); if (iwdev->netdev) { dev_hold(iwdev->netdev); return iwdev->netdev; } return NULL; } static void irdma_set_device_ops(struct ib_device *ibdev) { struct ib_device *dev_ops = ibdev; dev_ops->alloc_hw_stats = irdma_alloc_hw_stats; dev_ops->alloc_mr = irdma_alloc_mr; dev_ops->alloc_pd = irdma_alloc_pd; dev_ops->alloc_ucontext = irdma_alloc_ucontext; dev_ops->create_cq = irdma_create_cq; dev_ops->create_qp = irdma_create_qp; dev_ops->dealloc_pd = irdma_dealloc_pd; dev_ops->dealloc_ucontext = irdma_dealloc_ucontext; dev_ops->dereg_mr = irdma_dereg_mr; dev_ops->destroy_cq = irdma_destroy_cq; dev_ops->destroy_qp = irdma_destroy_qp; dev_ops->disassociate_ucontext = irdma_disassociate_ucontext; dev_ops->get_dev_fw_str = irdma_get_dev_fw_str; dev_ops->get_dma_mr = irdma_get_dma_mr; dev_ops->get_hw_stats = irdma_get_hw_stats; dev_ops->get_netdev = irdma_get_netdev; dev_ops->map_mr_sg = irdma_map_mr_sg; dev_ops->mmap = irdma_mmap; dev_ops->poll_cq = irdma_poll_cq; dev_ops->post_recv = irdma_post_recv; dev_ops->post_send = irdma_post_send; dev_ops->query_device = irdma_query_device; dev_ops->query_port = irdma_query_port; dev_ops->modify_port = irdma_modify_port; dev_ops->query_qp = irdma_query_qp; dev_ops->reg_user_mr = irdma_reg_user_mr; dev_ops->rereg_user_mr = irdma_rereg_user_mr; dev_ops->req_notify_cq = irdma_req_notify_cq; dev_ops->resize_cq = irdma_resize_cq; } static void irdma_set_device_mcast_ops(struct ib_device *ibdev) { struct ib_device *dev_ops = ibdev; dev_ops->attach_mcast = irdma_attach_mcast; dev_ops->detach_mcast = irdma_detach_mcast; } static void irdma_set_device_roce_ops(struct ib_device *ibdev) { struct ib_device *dev_ops = ibdev; dev_ops->create_ah = irdma_create_ah; dev_ops->destroy_ah = irdma_destroy_ah; dev_ops->get_link_layer = irdma_get_link_layer; dev_ops->get_port_immutable = irdma_roce_port_immutable; dev_ops->modify_qp = irdma_modify_qp_roce; dev_ops->query_ah = irdma_query_ah; dev_ops->query_gid = irdma_query_gid_roce; dev_ops->query_pkey = irdma_query_pkey; ibdev->add_gid = irdma_add_gid; ibdev->del_gid = irdma_del_gid; } static void irdma_set_device_iw_ops(struct ib_device *ibdev) { struct ib_device *dev_ops = ibdev; ibdev->uverbs_cmd_mask |= (1ull << IB_USER_VERBS_CMD_CREATE_AH) | (1ull << IB_USER_VERBS_CMD_DESTROY_AH); dev_ops->create_ah = irdma_create_ah_stub; dev_ops->destroy_ah = irdma_destroy_ah_stub; dev_ops->get_port_immutable = irdma_iw_port_immutable; dev_ops->modify_qp = irdma_modify_qp; dev_ops->query_gid = irdma_query_gid; dev_ops->query_pkey = irdma_iw_query_pkey; } static inline void irdma_set_device_gen1_ops(struct ib_device *ibdev) { } /** * irdma_init_roce_device - initialization of roce rdma device * @iwdev: irdma device */ static void irdma_init_roce_device(struct irdma_device *iwdev) { kc_set_roce_uverbs_cmd_mask(iwdev); iwdev->ibdev.node_type = RDMA_NODE_IB_CA; addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid, if_getlladdr(iwdev->netdev)); irdma_set_device_roce_ops(&iwdev->ibdev); if (iwdev->rf->rdma_ver == IRDMA_GEN_2) irdma_set_device_mcast_ops(&iwdev->ibdev); } /** * irdma_init_iw_device - initialization of iwarp rdma device * @iwdev: irdma device */ static int irdma_init_iw_device(struct irdma_device *iwdev) { if_t netdev = iwdev->netdev; iwdev->ibdev.node_type = RDMA_NODE_RNIC; addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid, if_getlladdr(netdev)); iwdev->ibdev.iwcm = kzalloc(sizeof(*iwdev->ibdev.iwcm), GFP_KERNEL); if (!iwdev->ibdev.iwcm) return -ENOMEM; iwdev->ibdev.iwcm->add_ref = irdma_qp_add_ref; iwdev->ibdev.iwcm->rem_ref = irdma_qp_rem_ref; iwdev->ibdev.iwcm->get_qp = irdma_get_qp; iwdev->ibdev.iwcm->connect = irdma_connect; iwdev->ibdev.iwcm->accept = irdma_accept; iwdev->ibdev.iwcm->reject = irdma_reject; iwdev->ibdev.iwcm->create_listen = irdma_create_listen; iwdev->ibdev.iwcm->destroy_listen = irdma_destroy_listen; memcpy(iwdev->ibdev.iwcm->ifname, if_name(netdev), sizeof(iwdev->ibdev.iwcm->ifname)); irdma_set_device_iw_ops(&iwdev->ibdev); return 0; } /** * irdma_init_rdma_device - initialization of rdma device * @iwdev: irdma device */ static int irdma_init_rdma_device(struct irdma_device *iwdev) { int ret; iwdev->ibdev.owner = THIS_MODULE; iwdev->ibdev.uverbs_abi_ver = IRDMA_ABI_VER; kc_set_rdma_uverbs_cmd_mask(iwdev); if (iwdev->roce_mode) { irdma_init_roce_device(iwdev); } else { ret = irdma_init_iw_device(iwdev); if (ret) return ret; } iwdev->ibdev.phys_port_cnt = 1; iwdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count; iwdev->ibdev.dev.parent = iwdev->rf->dev_ctx.dev; set_ibdev_dma_device(iwdev->ibdev, &iwdev->rf->pcidev->dev); irdma_set_device_ops(&iwdev->ibdev); if (iwdev->rf->rdma_ver == IRDMA_GEN_1) irdma_set_device_gen1_ops(&iwdev->ibdev); return 0; } /** * irdma_port_ibevent - indicate port event * @iwdev: irdma device */ void irdma_port_ibevent(struct irdma_device *iwdev) { struct ib_event event; event.device = &iwdev->ibdev; event.element.port_num = 1; event.event = iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; ib_dispatch_event(&event); } /** * irdma_ib_unregister_device - unregister rdma device from IB * core * @iwdev: irdma device */ void irdma_ib_unregister_device(struct irdma_device *iwdev) { iwdev->iw_status = 0; irdma_port_ibevent(iwdev); ib_unregister_device(&iwdev->ibdev); dev_put(iwdev->netdev); kfree(iwdev->ibdev.iwcm); iwdev->ibdev.iwcm = NULL; } /** * irdma_ib_register_device - register irdma device to IB core * @iwdev: irdma device */ int irdma_ib_register_device(struct irdma_device *iwdev) { int ret; ret = irdma_init_rdma_device(iwdev); if (ret) return ret; dev_hold(iwdev->netdev); sprintf(iwdev->ibdev.name, "irdma-%s", if_name(iwdev->netdev)); ret = ib_register_device(&iwdev->ibdev, NULL); if (ret) goto error; iwdev->iw_status = 1; irdma_port_ibevent(iwdev); return 0; error: kfree(iwdev->ibdev.iwcm); iwdev->ibdev.iwcm = NULL; irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_VERBS, "Register RDMA device fail\n"); return ret; }