| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mustafa Ismail | 22154 | 92.37% | 14 | 26.42% |
| Zhu Yanjun | 1055 | 4.40% | 10 | 18.87% |
| Shiraz Saleem | 343 | 1.43% | 7 | 13.21% |
| Krzysztof Czurylo | 90 | 0.38% | 1 | 1.89% |
| Sindhu Devale | 89 | 0.37% | 8 | 15.09% |
| Aharon Landau | 80 | 0.33% | 1 | 1.89% |
| Tatyana Nikolova | 73 | 0.30% | 2 | 3.77% |
| Kamal Heib | 56 | 0.23% | 6 | 11.32% |
| Leon Romanovsky | 30 | 0.13% | 1 | 1.89% |
| Jason Gunthorpe | 12 | 0.05% | 2 | 3.77% |
| Maor Gottlieb | 3 | 0.01% | 1 | 1.89% |
| Total | 23985 | 53 |
// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB /* Copyright (c) 2015 - 2021 Intel Corporation */ #include "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, iwdev->netdev->dev_addr); 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->kernel_cap_flags = IBK_LOCAL_DMA_LKEY; props->vendor_id = pcidev->vendor; props->vendor_part_id = pcidev->device; props->hw_ver = rf->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; props->max_send_sge = hw_attrs->uk_attrs.max_hw_wq_frags; props->max_recv_sge = hw_attrs->uk_attrs.max_hw_wq_frags; 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_mw = props->max_mr; 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; 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; #define HCA_CLOCK_TIMESTAMP_MASK 0x1ffff if (hw_attrs->uk_attrs.hw_rev >= IRDMA_GEN_2) props->timestamp_mask = HCA_CLOCK_TIMESTAMP_MASK; return 0; } /** * irdma_query_port - get port attributes * @ibdev: device pointer from stack * @port: port number for query * @props: returning device attributes */ static int irdma_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props) { struct irdma_device *iwdev = to_iwdev(ibdev); struct net_device *netdev = iwdev->netdev; /* no need to zero out pros here. done by caller */ props->max_mtu = IB_MTU_4096; props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); props->lid = 1; props->lmc = 0; props->sm_lid = 0; props->sm_sl = 0; if (netif_carrier_ok(netdev) && netif_running(netdev)) { props->state = IB_PORT_ACTIVE; props->phys_state = IB_PORT_PHYS_STATE_LINK_UP; } else { props->state = IB_PORT_DOWN; props->phys_state = IB_PORT_PHYS_STATE_DISABLED; } ib_get_eth_speed(ibdev, port, &props->active_speed, &props->active_width); if (rdma_protocol_roce(ibdev, 1)) { props->gid_tbl_len = 32; props->ip_gids = true; props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ; } else { props->gid_tbl_len = 1; } props->qkey_viol_cntr = 0; props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP; props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size; return 0; } /** * irdma_disassociate_ucontext - Disassociate user context * @context: ib user context */ static void irdma_disassociate_ucontext(struct ib_ucontext *context) { } 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), NULL); } static void irdma_mmap_free(struct rdma_user_mmap_entry *rdma_entry) { struct irdma_user_mmap_entry *entry = to_irdma_mmap_entry(rdma_entry); kfree(entry); } static struct rdma_user_mmap_entry* irdma_user_mmap_entry_insert(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); int ret; if (!entry) return NULL; entry->bar_offset = bar_offset; entry->mmap_flag = mmap_flag; ret = rdma_user_mmap_entry_insert(&ucontext->ibucontext, &entry->rdma_entry, PAGE_SIZE); if (ret) { kfree(entry); return NULL; } *mmap_offset = rdma_user_mmap_get_offset(&entry->rdma_entry); return &entry->rdma_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 rdma_user_mmap_entry *rdma_entry; 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); rdma_entry = rdma_user_mmap_entry_get(&ucontext->ibucontext, vma); if (!rdma_entry) { ibdev_dbg(&ucontext->iwdev->ibdev, "VERBS: pgoff[0x%lx] does not have valid entry\n", vma->vm_pgoff); return -EINVAL; } entry = to_irdma_mmap_entry(rdma_entry); ibdev_dbg(&ucontext->iwdev->ibdev, "VERBS: bar_offset [0x%llx] 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), rdma_entry); break; case IRDMA_MMAP_IO_WC: ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE, pgprot_writecombine(vma->vm_page_prot), rdma_entry); break; default: ret = -EINVAL; } if (ret) ibdev_dbg(&ucontext->iwdev->ibdev, "VERBS: bar_offset [0x%llx] mmap_flag[%d] err[%d]\n", entry->bar_offset, entry->mmap_flag, ret); rdma_user_mmap_entry_put(rdma_entry); 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_alloc_ucontext - Allocate the user context data structure * @uctx: uverbs context pointer * @udata: user data * * This keeps track of all objects associated with a particular * user-mode client. */ static int irdma_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) { #define IRDMA_ALLOC_UCTX_MIN_REQ_LEN offsetofend(struct irdma_alloc_ucontext_req, rsvd8) #define IRDMA_ALLOC_UCTX_MIN_RESP_LEN offsetofend(struct irdma_alloc_ucontext_resp, rsvd) struct ib_device *ibdev = uctx->device; struct irdma_device *iwdev = to_iwdev(ibdev); struct irdma_alloc_ucontext_req req = {}; struct irdma_alloc_ucontext_resp uresp = {}; struct irdma_ucontext *ucontext = to_ucontext(uctx); struct irdma_uk_attrs *uk_attrs; if (udata->inlen < IRDMA_ALLOC_UCTX_MIN_REQ_LEN || udata->outlen < IRDMA_ALLOC_UCTX_MIN_RESP_LEN) return -EINVAL; if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) return -EINVAL; if (req.userspace_ver < 4 || req.userspace_ver > IRDMA_ABI_VER) goto ver_error; ucontext->iwdev = iwdev; ucontext->abi_ver = req.userspace_ver; uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; /* GEN_1 legacy support with libi40iw */ if (udata->outlen == IRDMA_ALLOC_UCTX_MIN_RESP_LEN) { if (uk_attrs->hw_rev != IRDMA_GEN_1) return -EOPNOTSUPP; ucontext->legacy_mode = true; uresp.max_qps = iwdev->rf->max_qp; uresp.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds; uresp.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2; uresp.kernel_ver = req.userspace_ver; if (ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen))) return -EFAULT; } else { u64 bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; ucontext->db_mmap_entry = irdma_user_mmap_entry_insert(ucontext, bar_off, IRDMA_MMAP_IO_NC, &uresp.db_mmap_key); if (!ucontext->db_mmap_entry) return -ENOMEM; uresp.kernel_ver = IRDMA_ABI_VER; uresp.feature_flags = uk_attrs->feature_flags; uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags; uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges; uresp.max_hw_inline = uk_attrs->max_hw_inline; uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta; uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta; uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk; uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size; uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size; uresp.hw_rev = uk_attrs->hw_rev; if (ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen))) { rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); return -EFAULT; } } INIT_LIST_HEAD(&ucontext->cq_reg_mem_list); spin_lock_init(&ucontext->cq_reg_mem_list_lock); INIT_LIST_HEAD(&ucontext->qp_reg_mem_list); spin_lock_init(&ucontext->qp_reg_mem_list_lock); return 0; ver_error: ibdev_err(&iwdev->ibdev, "Invalid userspace driver version detected. Detected version %d, should be %d\n", req.userspace_ver, IRDMA_ABI_VER); return -EINVAL; } /** * irdma_dealloc_ucontext - deallocate the user context data structure * @context: user context created during alloc */ static void irdma_dealloc_ucontext(struct ib_ucontext *context) { struct irdma_ucontext *ucontext = to_ucontext(context); rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); } /** * irdma_alloc_pd - allocate protection domain * @pd: PD pointer * @udata: user data */ static int irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata) { #define IRDMA_ALLOC_PD_MIN_RESP_LEN offsetofend(struct irdma_alloc_pd_resp, rsvd) struct irdma_pd *iwpd = to_iwpd(pd); struct irdma_device *iwdev = to_iwdev(pd->device); struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; struct irdma_pci_f *rf = iwdev->rf; struct irdma_alloc_pd_resp uresp = {}; struct irdma_sc_pd *sc_pd; u32 pd_id = 0; int err; if (udata && udata->outlen < IRDMA_ALLOC_PD_MIN_RESP_LEN) return -EINVAL; err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id, &rf->next_pd); if (err) return err; sc_pd = &iwpd->sc_pd; if (udata) { struct irdma_ucontext *ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); irdma_sc_pd_init(dev, sc_pd, pd_id, ucontext->abi_ver); uresp.pd_id = pd_id; if (ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen))) { err = -EFAULT; goto error; } } else { irdma_sc_pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER); } return 0; error: irdma_free_rsrc(rf, rf->allocated_pds, pd_id); return err; } /** * irdma_dealloc_pd - deallocate pd * @ibpd: ptr of pd to be deallocated * @udata: user data */ static int irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) { struct irdma_pd *iwpd = to_iwpd(ibpd); struct irdma_device *iwdev = to_iwdev(ibpd->device); irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id); return 0; } /** * 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) */ static 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 */ static 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 void irdma_remove_push_mmap_entries(struct irdma_qp *iwqp) { if (iwqp->push_db_mmap_entry) { rdma_user_mmap_entry_remove(iwqp->push_db_mmap_entry); iwqp->push_db_mmap_entry = NULL; } if (iwqp->push_wqe_mmap_entry) { rdma_user_mmap_entry_remove(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 rsvd, bar_off; rsvd = IRDMA_PF_BAR_RSVD; bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; /* skip over db page */ bar_off += IRDMA_HW_PAGE_SIZE; /* push wqe page */ bar_off += rsvd + iwqp->sc_qp.push_idx * IRDMA_HW_PAGE_SIZE; iwqp->push_wqe_mmap_entry = irdma_user_mmap_entry_insert(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_insert(ucontext, bar_off, IRDMA_MMAP_IO_NC, push_db_mmap_key); if (!iwqp->push_db_mmap_entry) { rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry); return -ENOMEM; } return 0; } /** * irdma_destroy_qp - destroy qp * @ibqp: qp's ib pointer also to get to device's qp address * @udata: user data */ static int irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata) { struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_device *iwdev = iwqp->iwdev; iwqp->sc_qp.qp_uk.destroy_pending = true; if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS) irdma_modify_qp_to_err(&iwqp->sc_qp); if (!iwqp->user_mode) cancel_delayed_work_sync(&iwqp->dwork_flush); if (!iwqp->user_mode) { if (iwqp->iwscq) { irdma_clean_cqes(iwqp, iwqp->iwscq); if (iwqp->iwrcq != iwqp->iwscq) irdma_clean_cqes(iwqp, iwqp->iwrcq); } } irdma_qp_rem_ref(&iwqp->ibqp); wait_for_completion(&iwqp->free_qp); irdma_free_lsmm_rsrc(iwqp); irdma_cqp_qp_destroy_cmd(&iwdev->rf->sc_dev, &iwqp->sc_qp); irdma_remove_push_mmap_entries(iwqp); irdma_free_qp_rsrc(iwqp); return 0; } /** * irdma_setup_virt_qp - setup for allocation of virtual qp * @iwdev: irdma device * @iwqp: qp ptr * @init_info: initialize info to return */ static 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_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 */ static 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 sqdepth, rqdepth; u8 sqshift, rqshift; u32 size; int status; struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; irdma_get_wqe_shift(uk_attrs, uk_attrs->hw_rev >= IRDMA_GEN_2 ? ukinfo->max_sq_frag_cnt + 1 : ukinfo->max_sq_frag_cnt, ukinfo->max_inline_data, &sqshift); status = irdma_get_sqdepth(uk_attrs, ukinfo->sq_size, sqshift, &sqdepth); if (status) return status; if (uk_attrs->hw_rev == IRDMA_GEN_1) rqshift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1; else irdma_get_wqe_shift(uk_attrs, ukinfo->max_rq_frag_cnt, 0, &rqshift); status = irdma_get_rqdepth(uk_attrs, ukinfo->rq_size, rqshift, &rqdepth); if (status) return status; iwqp->kqp.sq_wrid_mem = kcalloc(sqdepth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL); if (!iwqp->kqp.sq_wrid_mem) return -ENOMEM; iwqp->kqp.rq_wrid_mem = kcalloc(rqdepth, 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; } ukinfo->sq_wrtrk_array = iwqp->kqp.sq_wrid_mem; ukinfo->rq_wrid_array = iwqp->kqp.rq_wrid_mem; size = (sqdepth + rqdepth) * IRDMA_QP_WQE_MIN_SIZE; size += (IRDMA_SHADOW_AREA_SIZE << 3); mem->size = ALIGN(size, 256); mem->va = dma_alloc_coherent(iwdev->rf->hw.device, mem->size, &mem->pa, GFP_KERNEL); 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[sqdepth]; info->rq_pa = info->sq_pa + (sqdepth * IRDMA_QP_WQE_MIN_SIZE); ukinfo->shadow_area = ukinfo->rq[rqdepth].elem; info->shadow_area_pa = info->rq_pa + (rqdepth * IRDMA_QP_WQE_MIN_SIZE); ukinfo->sq_size = sqdepth >> sqshift; ukinfo->rq_size = rqdepth >> rqshift; ukinfo->qp_id = iwqp->ibqp.qp_num; init_attr->cap.max_send_wr = (sqdepth - IRDMA_SQ_RSVD) >> sqshift; init_attr->cap.max_recv_wr = (rqdepth - IRDMA_RQ_RSVD) >> rqshift; return 0; } static 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; } static 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, iwdev->netdev->dev_addr); roce_info->rd_en = true; roce_info->wr_rdresp_en = true; roce_info->bind_en = true; roce_info->dcqcn_en = false; roce_info->rtomin = 5; 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); } static 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, iwdev->netdev->dev_addr); iwarp_info->rd_en = true; iwarp_info->wr_rdresp_en = true; iwarp_info->bind_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; } static 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_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; } static 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); } /** * irdma_create_qp - create qp * @ibqp: ptr of qp * @init_attr: attributes for qp * @udata: user data for create qp */ static int irdma_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr, struct ib_udata *udata) { #define IRDMA_CREATE_QP_MIN_REQ_LEN offsetofend(struct irdma_create_qp_req, user_compl_ctx) #define IRDMA_CREATE_QP_MIN_RESP_LEN offsetofend(struct irdma_create_qp_resp, rsvd) struct ib_pd *ibpd = ibqp->pd; struct irdma_pd *iwpd = to_iwpd(ibpd); struct irdma_device *iwdev = to_iwdev(ibpd->device); struct irdma_pci_f *rf = iwdev->rf; struct irdma_qp *iwqp = to_iwqp(ibqp); struct irdma_create_qp_req req = {}; struct irdma_create_qp_resp uresp = {}; u32 qp_num = 0; int err_code; int sq_size; int rq_size; struct irdma_sc_qp *qp; struct irdma_sc_dev *dev = &rf->sc_dev; struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs; struct irdma_qp_init_info init_info = {}; struct irdma_qp_host_ctx_info *ctx_info; unsigned long flags; err_code = irdma_validate_qp_attrs(init_attr, iwdev); if (err_code) return err_code; if (udata && (udata->inlen < IRDMA_CREATE_QP_MIN_REQ_LEN || udata->outlen < IRDMA_CREATE_QP_MIN_RESP_LEN)) return -EINVAL; sq_size = init_attr->cap.max_send_wr; rq_size = init_attr->cap.max_recv_wr; init_info.vsi = &iwdev->vsi; init_info.qp_uk_init_info.uk_attrs = uk_attrs; init_info.qp_uk_init_info.sq_size = sq_size; init_info.qp_uk_init_info.rq_size = rq_size; init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge; init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge; init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data; qp = &iwqp->sc_qp; qp->qp_uk.back_qp = iwqp; qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX; iwqp->iwdev = iwdev; iwqp->q2_ctx_mem.size = ALIGN(IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE, 256); iwqp->q2_ctx_mem.va = dma_alloc_coherent(dev->hw->device, iwqp->q2_ctx_mem.size, &iwqp->q2_ctx_mem.pa, GFP_KERNEL); if (!iwqp->q2_ctx_mem.va) return -ENOMEM; init_info.q2 = iwqp->q2_ctx_mem.va; init_info.q2_pa = iwqp->q2_ctx_mem.pa; init_info.host_ctx = (__le64 *)(init_info.q2 + IRDMA_Q2_BUF_SIZE); init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE; if (init_attr->qp_type == IB_QPT_GSI) qp_num = 1; else err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp, &qp_num, &rf->next_qp); if (err_code) goto error; iwqp->iwpd = iwpd; iwqp->ibqp.qp_num = qp_num; qp = &iwqp->sc_qp; iwqp->iwscq = to_iwcq(init_attr->send_cq); iwqp->iwrcq = to_iwcq(init_attr->recv_cq); iwqp->host_ctx.va = init_info.host_ctx; iwqp->host_ctx.pa = init_info.host_ctx_pa; iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE; init_info.pd = &iwpd->sc_pd; init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num; if (!rdma_protocol_roce(&iwdev->ibdev, 1)) init_info.qp_uk_init_info.first_sq_wq = 1; iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp; init_waitqueue_head(&iwqp->waitq); init_waitqueue_head(&iwqp->mod_qp_waitq); if (udata) { err_code = ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen)); if (err_code) { ibdev_dbg(&iwdev->ibdev, "VERBS: ib_copy_from_data fail\n"); goto error; } iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; iwqp->user_mode = 1; if (req.user_wqe_bufs) { struct irdma_ucontext *ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); init_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) { err_code = -ENODATA; ibdev_dbg(&iwdev->ibdev, "VERBS: no pbl info\n"); goto error; } } init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver; irdma_setup_virt_qp(iwdev, iwqp, &init_info); } else { INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker); init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER; err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info, init_attr); } if (err_code) { ibdev_dbg(&iwdev->ibdev, "VERBS: setup qp failed\n"); goto error; } if (rdma_protocol_roce(&iwdev->ibdev, 1)) { if (init_attr->qp_type == IB_QPT_RC) { init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_RC; init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | IRDMA_WRITE_WITH_IMM | IRDMA_ROCE; } else { init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_UD; init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | IRDMA_ROCE; } } else { init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_IWARP; init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM; } if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1) init_info.qp_uk_init_info.qp_caps |= IRDMA_PUSH_MODE; err_code = irdma_sc_qp_init(qp, &init_info); if (err_code) { ibdev_dbg(&iwdev->ibdev, "VERBS: qp_init fail\n"); goto error; } ctx_info = &iwqp->ctx_info; 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; if (rdma_protocol_roce(&iwdev->ibdev, 1)) irdma_roce_fill_and_set_qpctx_info(iwqp, ctx_info); else irdma_iw_fill_and_set_qpctx_info(iwqp, ctx_info); err_code = irdma_cqp_create_qp_cmd(iwqp); if (err_code) goto error; refcount_set(&iwqp->refcnt, 1); spin_lock_init(&iwqp->lock); spin_lock_init(&iwqp->sc_qp.pfpdu.lock); iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0; rf->qp_table[qp_num] = iwqp; iwqp->max_send_wr = sq_size; iwqp->max_recv_wr = rq_size; if (rdma_protocol_roce(&iwdev->ibdev, 1)) { if (dev->ws_add(&iwdev->vsi, 0)) { irdma_cqp_qp_destroy_cmd(&rf->sc_dev, &iwqp->sc_qp); err_code = -EINVAL; goto error; } irdma_qp_add_qos(&iwqp->sc_qp); } if (udata) { /* GEN_1 legacy support with libi40iw does not have expanded uresp struct */ if (udata->outlen < sizeof(uresp)) { uresp.lsmm = 1; uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1; } else { if (rdma_protocol_iwarp(&iwdev->ibdev, 1)) uresp.lsmm = 1; } uresp.actual_sq_size = sq_size; uresp.actual_rq_size = rq_size; uresp.qp_id = qp_num; uresp.qp_caps = qp->qp_uk.qp_caps; err_code = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); if (err_code) { ibdev_dbg(&iwdev->ibdev, "VERBS: copy_to_udata failed\n"); irdma_destroy_qp(&iwqp->ibqp, udata); return err_code; } } init_completion(&iwqp->free_qp); return 0; error: irdma_free_qp_rsrc(iwqp); return err_code; } 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; if (iwqp->roce_info.bind_en) acc_flags |= IB_ACCESS_MW_BIND; } 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; if (iwqp->iwarp_info.bind_en) acc_flags |= IB_ACCESS_MW_BIND; } 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; } /** * irdma_query_pkey - Query partition key * @ibdev: device pointer from stack * @port: port number * @index: index of pkey * @pkey: pointer to store the pkey */ static int irdma_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey) { if (index >= IRDMA_PKEY_TBL_SZ) return -EINVAL; *pkey = IRDMA_DEFAULT_PKEY; 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 = {}; 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) { /* udata inlen/outlen can be 0 when supporting legacy libi40iw */ 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; const struct ib_gid_attr *sgid_attr; 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 = 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); ctx_info->user_pri = rt_tos2priority(udp_info->tos); iwqp->sc_qp.user_pri = ctx_info->user_pri; if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri)) return -ENOMEM; irdma_qp_add_qos(&iwqp->sc_qp); } sgid_attr = attr->ah_attr.grh.sgid_attr; ret = rdma_read_gid_l2_fields(sgid_attr, &vlan_id, ctx_info->roce_info->mac_addr); if (ret) return ret; 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->sgid_addr, &sgid_attr->gid); rdma_gid2ip((struct sockaddr *)&av->dgid_addr, &attr->ah_attr.grh.dgid); av->net_type = rdma_gid_attr_network_type(sgid_attr); if (av->net_type == RDMA_NETWORK_IPV6) { __be32 *daddr = av->dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32; __be32 *saddr = av->sgid_addr.saddr_in6.sin6_addr.in6_u.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); } udp_info->arp_idx = irdma_add_arp(iwdev->rf, local_ip, udp_info->ipv4, attr->ah_attr.roce.dmac); } if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) { ibdev_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) { ibdev_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)); ibdev_dbg(&iwdev->ibdev, "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)) { ibdev_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 (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; break; case IB_QPS_SQE: case IB_QPS_ERR: case IB_QPS_RESET: if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS) { spin_unlock_irqrestore(&iwqp->lock, flags); info.next_iwarp_state = IRDMA_QP_STATE_SQD; irdma_hw_modify_qp(iwdev, iwqp, &info, true); spin_lock_irqsave(&iwqp->lock, flags); } 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; 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 = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); 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; } ret = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); if (ret) { irdma_remove_push_mmap_entries(iwqp); ibdev_dbg(&iwdev->ibdev, "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 = {}; 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) { /* udata inlen/outlen can be 0 when supporting legacy libi40iw */ 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)); ibdev_dbg(&iwdev->ibdev, "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) { refcount_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 = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); 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; } err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); if (err) { irdma_remove_push_mmap_entries(iwqp); ibdev_dbg(&iwdev->ibdev, "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 */ static 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) { dma_free_coherent(rf->sc_dev.hw->device, iwcq->kmem.size, iwcq->kmem.va, iwcq->kmem.pa); iwcq->kmem.va = NULL; dma_free_coherent(rf->sc_dev.hw->device, iwcq->kmem_shadow.size, iwcq->kmem_shadow.va, iwcq->kmem_shadow.pa); iwcq->kmem_shadow.va = NULL; } 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); dma_free_coherent(cq_buf->hw->device, cq_buf->kmem_buf.size, cq_buf->kmem_buf.va, cq_buf->kmem_buf.pa); cq_buf->kmem_buf.va = NULL; 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 */ static 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_destroy_cq - destroy cq * @ib_cq: cq pointer * @udata: user data */ static int irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata) { struct irdma_device *iwdev = to_iwdev(ib_cq->device); struct irdma_cq *iwcq = to_iwcq(ib_cq); struct irdma_sc_cq *cq = &iwcq->sc_cq; struct irdma_sc_dev *dev = cq->dev; struct irdma_sc_ceq *ceq = dev->ceq[cq->ceq_id]; struct irdma_ceq *iwceq = container_of(ceq, struct irdma_ceq, sc_ceq); unsigned long flags; spin_lock_irqsave(&iwcq->lock, flags); if (!list_empty(&iwcq->cmpl_generated)) irdma_remove_cmpls_list(iwcq); if (!list_empty(&iwcq->resize_list)) irdma_process_resize_list(iwcq, iwdev, NULL); spin_unlock_irqrestore(&iwcq->lock, flags); irdma_cq_wq_destroy(iwdev->rf, cq); spin_lock_irqsave(&iwceq->ce_lock, flags); irdma_sc_cleanup_ceqes(cq, ceq); spin_unlock_irqrestore(&iwceq->ce_lock, flags); irdma_cq_free_rsrc(iwdev->rf, iwcq); return 0; } /** * 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 = {}; 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 = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); /* 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 = ALIGN(round_up(rsize, 256), 256); kmem_buf.va = dma_alloc_coherent(dev->hw->device, kmem_buf.size, &kmem_buf.pa, GFP_KERNEL); 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) { dma_free_coherent(dev->hw->device, kmem_buf.size, kmem_buf.va, kmem_buf.pa); kmem_buf.va = NULL; } kfree(cq_buf); return ret; } static inline int cq_validate_flags(u32 flags, u8 hw_rev) { /* GEN1 does not support CQ create flags */ if (hw_rev == IRDMA_GEN_1) return flags ? -EOPNOTSUPP : 0; return flags & ~IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION ? -EOPNOTSUPP : 0; } /** * irdma_create_cq - create cq * @ibcq: CQ allocated * @attr: attributes for cq * @udata: user data */ static int irdma_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, struct ib_udata *udata) { #define IRDMA_CREATE_CQ_MIN_REQ_LEN offsetofend(struct irdma_create_cq_req, user_cq_buf) #define IRDMA_CREATE_CQ_MIN_RESP_LEN offsetofend(struct irdma_create_cq_resp, cq_size) struct ib_device *ibdev = ibcq->device; struct irdma_device *iwdev = to_iwdev(ibdev); struct irdma_pci_f *rf = iwdev->rf; struct irdma_cq *iwcq = to_iwcq(ibcq); u32 cq_num = 0; struct irdma_sc_cq *cq; struct irdma_sc_dev *dev = &rf->sc_dev; struct irdma_cq_init_info info = {}; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info; unsigned long flags; int err_code; int entries = attr->cqe; err_code = cq_validate_flags(attr->flags, dev->hw_attrs.uk_attrs.hw_rev); if (err_code) return err_code; if (udata && (udata->inlen < IRDMA_CREATE_CQ_MIN_REQ_LEN || udata->outlen < IRDMA_CREATE_CQ_MIN_RESP_LEN)) return -EINVAL; err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num, &rf->next_cq); if (err_code) return err_code; cq = &iwcq->sc_cq; cq->back_cq = iwcq; spin_lock_init(&iwcq->lock); INIT_LIST_HEAD(&iwcq->resize_list); INIT_LIST_HEAD(&iwcq->cmpl_generated); info.dev = dev; ukinfo->cq_size = max(entries, 4); ukinfo->cq_id = cq_num; iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size; if (attr->comp_vector < rf->ceqs_count) info.ceq_id = attr->comp_vector; info.ceq_id_valid = true; info.ceqe_mask = 1; info.type = IRDMA_CQ_TYPE_IWARP; info.vsi = &iwdev->vsi; if (udata) { struct irdma_ucontext *ucontext; struct irdma_create_cq_req req = {}; struct irdma_cq_mr *cqmr; struct irdma_pbl *iwpbl; struct irdma_pbl *iwpbl_shadow; struct irdma_cq_mr *cqmr_shadow; iwcq->user_mode = true; ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) { err_code = -EFAULT; goto cq_free_rsrc; } spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf, &ucontext->cq_reg_mem_list); spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); if (!iwpbl) { err_code = -EPROTO; goto cq_free_rsrc; } iwcq->iwpbl = iwpbl; iwcq->cq_mem_size = 0; cqmr = &iwpbl->cq_mr; if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE && !ucontext->legacy_mode) { spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); iwpbl_shadow = irdma_get_pbl( (unsigned long)req.user_shadow_area, &ucontext->cq_reg_mem_list); spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); if (!iwpbl_shadow) { err_code = -EPROTO; goto cq_free_rsrc; } iwcq->iwpbl_shadow = iwpbl_shadow; cqmr_shadow = &iwpbl_shadow->cq_mr; info.shadow_area_pa = cqmr_shadow->cq_pbl.addr; cqmr->split = true; } else { info.shadow_area_pa = cqmr->shadow; } if (iwpbl->pbl_allocated) { info.virtual_map = true; info.pbl_chunk_size = 1; info.first_pm_pbl_idx = cqmr->cq_pbl.idx; } else { info.cq_base_pa = cqmr->cq_pbl.addr; } } else { /* Kmode allocations */ int rsize; if (entries < 1 || entries > rf->max_cqe) { err_code = -EINVAL; goto cq_free_rsrc; } entries++; if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) entries *= 2; ukinfo->cq_size = entries; rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe); iwcq->kmem.size = ALIGN(round_up(rsize, 256), 256); iwcq->kmem.va = dma_alloc_coherent(dev->hw->device, iwcq->kmem.size, &iwcq->kmem.pa, GFP_KERNEL); if (!iwcq->kmem.va) { err_code = -ENOMEM; goto cq_free_rsrc; } iwcq->kmem_shadow.size = ALIGN(IRDMA_SHADOW_AREA_SIZE << 3, 64); iwcq->kmem_shadow.va = dma_alloc_coherent(dev->hw->device, iwcq->kmem_shadow.size, &iwcq->kmem_shadow.pa, GFP_KERNEL); if (!iwcq->kmem_shadow.va) { err_code = -ENOMEM; goto cq_free_rsrc; } info.shadow_area_pa = iwcq->kmem_shadow.pa; ukinfo->shadow_area = iwcq->kmem_shadow.va; ukinfo->cq_base = iwcq->kmem.va; info.cq_base_pa = iwcq->kmem.pa; } if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2, (u32)IRDMA_MAX_CQ_READ_THRESH); if (irdma_sc_cq_init(cq, &info)) { ibdev_dbg(&iwdev->ibdev, "VERBS: init cq fail\n"); err_code = -EPROTO; goto cq_free_rsrc; } cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); if (!cqp_request) { err_code = -ENOMEM; goto cq_free_rsrc; } cqp_info = &cqp_request->info; cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE; cqp_info->post_sq = 1; cqp_info->in.u.cq_create.cq = cq; cqp_info->in.u.cq_create.check_overflow = true; cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; err_code = irdma_handle_cqp_op(rf, cqp_request); irdma_put_cqp_request(&rf->cqp, cqp_request); if (err_code) goto cq_free_rsrc; if (udata) { struct irdma_create_cq_resp resp = {}; resp.cq_id = info.cq_uk_init_info.cq_id; resp.cq_size = info.cq_uk_init_info.cq_size; if (ib_copy_to_udata(udata, &resp, min(sizeof(resp), udata->outlen))) { ibdev_dbg(&iwdev->ibdev, "VERBS: copy to user data\n"); err_code = -EPROTO; goto cq_destroy; } } return 0; cq_destroy: irdma_cq_wq_destroy(rf, cq); cq_free_rsrc: irdma_cq_free_rsrc(rf, iwcq); return err_code; } /** * irdma_get_mr_access - get hw MR access permissions from IB access flags * @access: IB access flags */ static inline u16 irdma_get_mr_access(int access) { 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_ACCESS_MW_BIND) ? IRDMA_ACCESS_FLAGS_BIND_WINDOW : 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 */ static 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 */ static u32 irdma_create_stag(struct irdma_device *iwdev) { u32 stag = 0; 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 stag; stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S; stag |= driver_key; stag += (u32)consumer_key; return stag; } /** * irdma_next_pbl_addr - Get next pbl address * @pbl: pointer to a pble * @pinfo: info pointer * @idx: index */ static inline u64 *irdma_next_pbl_addr(u64 *pbl, struct irdma_pble_info **pinfo, u32 *idx) { *idx += 1; if (!(*pinfo) || *idx != (*pinfo)->cnt) return ++pbl; *idx = 0; (*pinfo)++; return (*pinfo)->addr; } /** * irdma_copy_user_pgaddrs - copy user page address to pble's os locally * @iwmr: iwmr for IB's user page addresses * @pbl: ple pointer to save 1 level or 0 level pble * @level: indicated level 0, 1 or 2 */ static void irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl, enum irdma_pble_level level) { struct ib_umem *region = iwmr->region; struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; struct irdma_pble_info *pinfo; struct ib_block_iter biter; u32 idx = 0; u32 pbl_cnt = 0; pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf; if (iwmr->type == IRDMA_MEMREG_TYPE_QP) iwpbl->qp_mr.sq_page = sg_page(region->sgt_append.sgt.sgl); rdma_umem_for_each_dma_block(region, &biter, iwmr->page_size) { *pbl = rdma_block_iter_dma_address(&biter); if (++pbl_cnt == palloc->total_cnt) break; pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx); } } /** * 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: ibdev_dbg(&iwdev->ibdev, "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_mw - create the hw memory window * @iwdev: irdma device * @iwmr: pointer to memory window info */ static int irdma_hw_alloc_mw(struct irdma_device *iwdev, struct irdma_mr *iwmr) { struct irdma_mw_alloc_info *info; struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.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.mw_alloc.info; memset(info, 0, sizeof(*info)); if (iwmr->ibmw.type == IB_MW_TYPE_1) info->mw_wide = true; info->page_size = PAGE_SIZE; info->mw_stag_index = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; info->pd_id = iwpd->sc_pd.pd_id; info->remote_access = true; cqp_info->cqp_cmd = IRDMA_OP_MW_ALLOC; cqp_info->post_sq = 1; cqp_info->in.u.mw_alloc.dev = &iwdev->rf->sc_dev; cqp_info->in.u.mw_alloc.scratch = (uintptr_t)cqp_request; status = irdma_handle_cqp_op(iwdev->rf, cqp_request); irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); return status; } /** * irdma_alloc_mw - Allocate memory window * @ibmw: Memory Window * @udata: user data pointer */ static int irdma_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata) { struct irdma_device *iwdev = to_iwdev(ibmw->device); struct irdma_mr *iwmr = to_iwmw(ibmw); int err_code; u32 stag; stag = irdma_create_stag(iwdev); if (!stag) return -ENOMEM; iwmr->stag = stag; ibmw->rkey = stag; err_code = irdma_hw_alloc_mw(iwdev, iwmr); if (err_code) { irdma_free_stag(iwdev, stag); return err_code; } return 0; } /** * irdma_dealloc_mw - Dealloc memory window * @ibmw: memory window structure. */ static int irdma_dealloc_mw(struct ib_mw *ibmw) { struct ib_pd *ibpd = ibmw->pd; struct irdma_pd *iwpd = to_iwpd(ibpd); struct irdma_mr *iwmr = to_iwmr((struct ib_mr *)ibmw); struct irdma_device *iwdev = to_iwdev(ibmw->device); struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; struct irdma_dealloc_stag_info *info; 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 = ibmw->rkey >> IRDMA_CQPSQ_STAG_IDX_S; info->mr = false; 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; irdma_handle_cqp_op(iwdev->rf, cqp_request); irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); irdma_free_stag(iwdev, iwmr->stag); return 0; } /** * irdma_hw_alloc_stag - cqp command to allocate stag * @iwdev: irdma device * @iwmr: irdma mr pointer */ static int irdma_hw_alloc_stag(struct irdma_device *iwdev, struct irdma_mr *iwmr) { struct irdma_allocate_stag_info *info; struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); int status; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; 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->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); return status; } /** * irdma_alloc_mr - register stag for fast memory registration * @pd: ibpd pointer * @mr_type: memory for stag registrion * @max_num_sg: man number of pages */ static struct ib_mr *irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, u32 max_num_sg) { struct irdma_device *iwdev = to_iwdev(pd->device); struct irdma_pble_alloc *palloc; struct irdma_pbl *iwpbl; struct irdma_mr *iwmr; u32 stag; int err_code; iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); if (!iwmr) return ERR_PTR(-ENOMEM); stag = irdma_create_stag(iwdev); if (!stag) { err_code = -ENOMEM; goto err; } iwmr->stag = stag; iwmr->ibmr.rkey = stag; iwmr->ibmr.lkey = stag; iwmr->ibmr.pd = pd; iwmr->ibmr.device = pd->device; iwpbl = &iwmr->iwpbl; iwpbl->iwmr = iwmr; iwmr->type = IRDMA_MEMREG_TYPE_MEM; palloc = &iwpbl->pble_alloc; iwmr->page_cnt = max_num_sg; err_code = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt, false); if (err_code) goto err_get_pble; err_code = irdma_hw_alloc_stag(iwdev, iwmr); if (err_code) goto err_alloc_stag; iwpbl->pbl_allocated = true; return &iwmr->ibmr; err_alloc_stag: irdma_free_pble(iwdev->rf->pble_rsrc, palloc); err_get_pble: irdma_free_stag(iwdev, stag); err: kfree(iwmr); return ERR_PTR(err_code); } /** * 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 */ static 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 irdma_pd *iwpd = to_iwpd(iwmr->ibmr.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->access_rights = irdma_get_mr_access(access); 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); return ret; } static int irdma_reg_user_mr_type_mem(struct irdma_mr *iwmr, int access) { struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device); struct irdma_pbl *iwpbl = &iwmr->iwpbl; u32 stag; u8 lvl; int err; 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; } } stag = irdma_create_stag(iwdev); if (!stag) { err = -ENOMEM; goto free_pble; } iwmr->stag = stag; iwmr->ibmr.rkey = stag; iwmr->ibmr.lkey = stag; err = irdma_hwreg_mr(iwdev, iwmr, access); if (err) goto err_hwreg; return 0; err_hwreg: 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; } 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_device *iwdev = to_iwdev(pd->device); struct irdma_pbl *iwpbl = NULL; struct irdma_mr *iwmr = NULL; unsigned long pgsz_bitmap; 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; pgsz_bitmap = (reg_type == IRDMA_MEMREG_TYPE_MEM) ? iwdev->rf->sc_dev.hw_attrs.page_size_cap : PAGE_SIZE; iwmr->page_size = ib_umem_find_best_pgsz(region, pgsz_bitmap, virt); if (unlikely(!iwmr->page_size)) { kfree(iwmr); return ERR_PTR(-EOPNOTSUPP); } iwmr->len = region->length; iwpbl->user_base = virt; iwmr->page_cnt = ib_umem_num_dma_blocks(region, iwmr->page_size); return iwmr; } static void irdma_free_iwmr(struct irdma_mr *iwmr) { kfree(iwmr); } 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 = NULL; unsigned long flags; u32 total; int err; u8 lvl; total = req.sq_pages + req.rq_pages + 1; 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 = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); 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; } 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 = NULL; u8 shadow_pgcnt = 1; unsigned long flags; u32 total; int err; u8 lvl; if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE) shadow_pgcnt = 0; total = req.cq_pages + 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 = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); 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 = NULL; struct irdma_mr *iwmr = NULL; 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->device, start, len, access); if (IS_ERR(region)) { ibdev_dbg(&iwdev->ibdev, "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); 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); } static struct ib_mr *irdma_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start, u64 len, u64 virt, int fd, int access, struct ib_udata *udata) { struct irdma_device *iwdev = to_iwdev(pd->device); struct ib_umem_dmabuf *umem_dmabuf; struct irdma_mr *iwmr; int err; if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size) return ERR_PTR(-EINVAL); umem_dmabuf = ib_umem_dmabuf_get_pinned(pd->device, start, len, fd, access); if (IS_ERR(umem_dmabuf)) { err = PTR_ERR(umem_dmabuf); ibdev_dbg(&iwdev->ibdev, "Failed to get dmabuf umem[%d]\n", err); return ERR_PTR(err); } iwmr = irdma_alloc_iwmr(&umem_dmabuf->umem, pd, virt, IRDMA_MEMREG_TYPE_MEM); if (IS_ERR(iwmr)) { err = PTR_ERR(iwmr); goto err_release; } err = irdma_reg_user_mr_type_mem(iwmr, access); if (err) goto err_iwmr; return &iwmr->ibmr; err_iwmr: irdma_free_iwmr(iwmr); err_release: ib_umem_release(&umem_dmabuf->umem); 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 */ static 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_dereg_mr - deregister mr * @ib_mr: mr ptr for dereg * @udata: user data */ static int irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata) { struct ib_pd *ibpd = ib_mr->pd; struct irdma_pd *iwpd = to_iwpd(ibpd); struct irdma_mr *iwmr = to_iwmr(ib_mr); struct irdma_device *iwdev = to_iwdev(ib_mr->device); struct irdma_dealloc_stag_info *info; struct irdma_pbl *iwpbl = &iwmr->iwpbl; struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; struct irdma_cqp_request *cqp_request; struct cqp_cmds_info *cqp_info; int status; if (iwmr->type != IRDMA_MEMREG_TYPE_MEM) { if (iwmr->region) { struct irdma_ucontext *ucontext; ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); irdma_del_memlist(iwmr, ucontext); } goto done; } 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 = 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) return status; irdma_free_stag(iwdev, iwmr->stag); done: if (iwpbl->pbl_allocated) irdma_free_pble(iwdev->rf->pble_rsrc, palloc); ib_umem_release(iwmr->region); kfree(iwmr); return 0; } /** * 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 = 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 = {}; 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); 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; stag_info.reg_addr_pa = *palloc->level1.addr; stag_info.first_pm_pbl_index = palloc->level1.idx; stag_info.local_fence = ib_wr->send_flags & IB_SEND_FENCE; if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR) stag_info.chunk_size = 1; err = irdma_sc_mr_fast_register(&iwqp->sc_qp, &stag_info, true); break; } default: err = -EINVAL; ibdev_dbg(&iwqp->iwdev->ibdev, "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); mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush, msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS)); } 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; struct irdma_qp_uk *ukqp; struct irdma_post_rq_info post_recv = {}; unsigned long flags; int err = 0; iwqp = to_iwqp(ibqp); ukqp = &iwqp->sc_qp.qp_uk; spin_lock_irqsave(&iwqp->lock, flags); while (ib_wr) { 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) { ibdev_dbg(&iwqp->iwdev->ibdev, "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) mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush, msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS)); 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_RETRY_EXC_ERR: return IB_WC_RETRY_EXC_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_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 & VLAN_VID_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: ibdev_dbg(&iwdev->ibdev, "%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; bool promo_event = false; int ret = 0; cq_notify = notify_flags == IB_CQ_SOLICITED ? IRDMA_CQ_COMPL_SOLICITED : IRDMA_CQ_COMPL_EVENT; iwcq = to_iwcq(ibcq); ukcq = &iwcq->sc_cq.cq_uk; spin_lock_irqsave(&iwcq->lock, flags); /* Only promote to arm the CQ for any event if the last arm event was solicited. */ if (iwcq->last_notify == IRDMA_CQ_COMPL_SOLICITED && notify_flags != IB_CQ_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; } static int irdma_roce_port_immutable(struct ib_device *ibdev, u32 port_num, struct ib_port_immutable *immutable) { struct ib_port_attr attr; int err; immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; err = ib_query_port(ibdev, port_num, &attr); if (err) return err; immutable->max_mad_size = IB_MGMT_MAD_SIZE; immutable->pkey_tbl_len = attr.pkey_tbl_len; immutable->gid_tbl_len = attr.gid_tbl_len; return 0; } static int irdma_iw_port_immutable(struct ib_device *ibdev, u32 port_num, struct ib_port_immutable *immutable) { struct ib_port_attr attr; int err; immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; err = ib_query_port(ibdev, port_num, &attr); if (err) return err; immutable->gid_tbl_len = attr.gid_tbl_len; return 0; } static const struct rdma_stat_desc irdma_hw_stat_names[] = { /* gen1 - 32-bit */ [IRDMA_HW_STAT_INDEX_IP4RXDISCARD].name = "ip4InDiscards", [IRDMA_HW_STAT_INDEX_IP4RXTRUNC].name = "ip4InTruncatedPkts", [IRDMA_HW_STAT_INDEX_IP4TXNOROUTE].name = "ip4OutNoRoutes", [IRDMA_HW_STAT_INDEX_IP6RXDISCARD].name = "ip6InDiscards", [IRDMA_HW_STAT_INDEX_IP6RXTRUNC].name = "ip6InTruncatedPkts", [IRDMA_HW_STAT_INDEX_IP6TXNOROUTE].name = "ip6OutNoRoutes", [IRDMA_HW_STAT_INDEX_TCPRTXSEG].name = "tcpRetransSegs", [IRDMA_HW_STAT_INDEX_TCPRXOPTERR].name = "tcpInOptErrors", [IRDMA_HW_STAT_INDEX_TCPRXPROTOERR].name = "tcpInProtoErrors", [IRDMA_HW_STAT_INDEX_RXVLANERR].name = "rxVlanErrors", /* gen1 - 64-bit */ [IRDMA_HW_STAT_INDEX_IP4RXOCTS].name = "ip4InOctets", [IRDMA_HW_STAT_INDEX_IP4RXPKTS].name = "ip4InPkts", [IRDMA_HW_STAT_INDEX_IP4RXFRAGS].name = "ip4InReasmRqd", [IRDMA_HW_STAT_INDEX_IP4RXMCPKTS].name = "ip4InMcastPkts", [IRDMA_HW_STAT_INDEX_IP4TXOCTS].name = "ip4OutOctets", [IRDMA_HW_STAT_INDEX_IP4TXPKTS].name = "ip4OutPkts", [IRDMA_HW_STAT_INDEX_IP4TXFRAGS].name = "ip4OutSegRqd", [IRDMA_HW_STAT_INDEX_IP4TXMCPKTS].name = "ip4OutMcastPkts", [IRDMA_HW_STAT_INDEX_IP6RXOCTS].name = "ip6InOctets", [IRDMA_HW_STAT_INDEX_IP6RXPKTS].name = "ip6InPkts", [IRDMA_HW_STAT_INDEX_IP6RXFRAGS].name = "ip6InReasmRqd", [IRDMA_HW_STAT_INDEX_IP6RXMCPKTS].name = "ip6InMcastPkts", [IRDMA_HW_STAT_INDEX_IP6TXOCTS].name = "ip6OutOctets", [IRDMA_HW_STAT_INDEX_IP6TXPKTS].name = "ip6OutPkts", [IRDMA_HW_STAT_INDEX_IP6TXFRAGS].name = "ip6OutSegRqd", [IRDMA_HW_STAT_INDEX_IP6TXMCPKTS].name = "ip6OutMcastPkts", [IRDMA_HW_STAT_INDEX_TCPRXSEGS].name = "tcpInSegs", [IRDMA_HW_STAT_INDEX_TCPTXSEG].name = "tcpOutSegs", [IRDMA_HW_STAT_INDEX_RDMARXRDS].name = "iwInRdmaReads", [IRDMA_HW_STAT_INDEX_RDMARXSNDS].name = "iwInRdmaSends", [IRDMA_HW_STAT_INDEX_RDMARXWRS].name = "iwInRdmaWrites", [IRDMA_HW_STAT_INDEX_RDMATXRDS].name = "iwOutRdmaReads", [IRDMA_HW_STAT_INDEX_RDMATXSNDS].name = "iwOutRdmaSends", [IRDMA_HW_STAT_INDEX_RDMATXWRS].name = "iwOutRdmaWrites", [IRDMA_HW_STAT_INDEX_RDMAVBND].name = "iwRdmaBnd", [IRDMA_HW_STAT_INDEX_RDMAVINV].name = "iwRdmaInv", /* gen2 - 32-bit */ [IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED].name = "cnpHandled", [IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED].name = "cnpIgnored", [IRDMA_HW_STAT_INDEX_TXNPCNPSENT].name = "cnpSent", /* gen2 - 64-bit */ [IRDMA_HW_STAT_INDEX_IP4RXMCOCTS].name = "ip4InMcastOctets", [IRDMA_HW_STAT_INDEX_IP4TXMCOCTS].name = "ip4OutMcastOctets", [IRDMA_HW_STAT_INDEX_IP6RXMCOCTS].name = "ip6InMcastOctets", [IRDMA_HW_STAT_INDEX_IP6TXMCOCTS].name = "ip6OutMcastOctets", [IRDMA_HW_STAT_INDEX_UDPRXPKTS].name = "RxUDP", [IRDMA_HW_STAT_INDEX_UDPTXPKTS].name = "TxUDP", [IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS].name = "RxECNMrkd", }; static void irdma_get_dev_fw_str(struct ib_device *dev, char *str) { struct irdma_device *iwdev = to_iwdev(dev); snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u", irdma_fw_major_ver(&iwdev->rf->sc_dev), irdma_fw_minor_ver(&iwdev->rf->sc_dev)); } /** * irdma_alloc_hw_port_stats - Allocate a hw stats structure * @ibdev: device pointer from stack * @port_num: port number */ static struct rdma_hw_stats *irdma_alloc_hw_port_stats(struct ib_device *ibdev, u32 port_num) { struct irdma_device *iwdev = to_iwdev(ibdev); struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; int num_counters = dev->hw_attrs.max_stat_idx; unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN; return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters, lifespan); } /** * irdma_get_hw_stats - Populates the rdma_hw_stats structure * @ibdev: device pointer from stack * @stats: stats pointer from stack * @port_num: port number * @index: which hw counter the stack is requesting we update */ static int irdma_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats, u32 port_num, int index) { struct irdma_device *iwdev = to_iwdev(ibdev); struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats; if (iwdev->rf->rdma_ver >= IRDMA_GEN_2) irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true); else irdma_cqp_gather_stats_gen1(&iwdev->rf->sc_dev, iwdev->vsi.pestat); memcpy(&stats->value[0], hw_stats, sizeof(u64) * stats->num_counters); return stats->num_counters; } /** * irdma_query_gid - Query port GID * @ibdev: device pointer from stack * @port: port number * @index: Entry index * @gid: Global ID */ static int irdma_query_gid(struct ib_device *ibdev, u32 port, int index, union ib_gid *gid) { struct irdma_device *iwdev = to_iwdev(ibdev); memset(gid->raw, 0, sizeof(gid->raw)); ether_addr_copy(gid->raw, iwdev->netdev->dev_addr); return 0; } /** * 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_mcast_mac - Get the multicast MAC for an IP address * @ip_addr: IPv4 or IPv6 address * @mac: pointer to result MAC address * @ipv4: flag indicating IPv4 or IPv6 * */ void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4) { u8 *ip = (u8 *)ip_addr; if (ipv4) { unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, 0x00, 0x00, 0x00}; mac4[3] = ip[2] & 0x7F; mac4[4] = ip[1]; mac4[5] = ip[0]; ether_addr_copy(mac, mac4); } else { unsigned char mac6[ETH_ALEN] = {0x33, 0x33, 0x00, 0x00, 0x00, 0x00}; mac6[2] = ip[3]; mac6[3] = ip[2]; mac6[4] = ip[1]; mac6[5] = ip[0]; ether_addr_copy(mac, mac6); } } /** * 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 = {}; unsigned long flags; u32 ip_addr[4] = {}; u32 mgn; u32 no_mgs; int ret = 0; bool ipv4; u16 vlan_id; union irdma_sockaddr sgid_addr; unsigned char dmac[ETH_ALEN]; 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.in6_u.u6_addr32); irdma_netdev_vlan_ipv6(ip_addr, &vlan_id, NULL); ipv4 = false; ibdev_dbg(&iwdev->ibdev, "VERBS: qp_id=%d, IP6address=%pI6\n", ibqp->qp_num, ip_addr); irdma_mcast_mac(ip_addr, dmac, false); } else { ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); ipv4 = true; vlan_id = irdma_get_vlan_ipv4(ip_addr); irdma_mcast_mac(ip_addr, dmac, true); ibdev_dbg(&iwdev->ibdev, "VERBS: qp_id=%d, IP4address=%pI4, MAC=%pM\n", ibqp->qp_num, ip_addr, dmac); } 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 = ALIGN(sizeof(u64) * IRDMA_MAX_MGS_PER_CTX, IRDMA_HW_PAGE_SIZE); dma_mem_mc->va = dma_alloc_coherent(rf->hw.device, dma_mem_mc->size, &dma_mem_mc->pa, GFP_KERNEL); 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); dma_free_coherent(rf->hw.device, mc_qht_elem->mc_grp_ctx.dma_mem_mc.size, mc_qht_elem->mc_grp_ctx.dma_mem_mc.va, mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa); mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL; 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] = {}; struct mc_table_list *mc_qht_elem; struct irdma_mcast_grp_ctx_entry_info mcg_info = {}; 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.in6_u.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); ibdev_dbg(&iwdev->ibdev, "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) { ibdev_dbg(&iwdev->ibdev, "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; } dma_free_coherent(rf->hw.device, mc_qht_elem->mc_grp_ctx.dma_mem_mc.size, mc_qht_elem->mc_grp_ctx.dma_mem_mc.va, mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa); mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL; 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) { ibdev_dbg(&iwdev->ibdev, "VERBS: failed Modify MCG\n"); return ret; } } return 0; } static int irdma_create_hw_ah(struct irdma_device *iwdev, struct irdma_ah *ah, bool sleep) { struct irdma_pci_f *rf = iwdev->rf; int err; err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah, &ah->sc_ah.ah_info.ah_idx, &rf->next_ah); if (err) return err; err = irdma_ah_cqp_op(rf, &ah->sc_ah, IRDMA_OP_AH_CREATE, sleep, irdma_gsi_ud_qp_ah_cb, &ah->sc_ah); if (err) { ibdev_dbg(&iwdev->ibdev, "VERBS: CQP-OP Create AH fail"); goto err_ah_create; } if (!sleep) { int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD; do { irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq); mdelay(1); } while (!ah->sc_ah.ah_info.ah_valid && --cnt); if (!cnt) { ibdev_dbg(&iwdev->ibdev, "VERBS: CQP create AH timed out"); err = -ETIMEDOUT; goto err_ah_create; } } return 0; err_ah_create: irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah->sc_ah.ah_info.ah_idx); return err; } static int irdma_setup_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr) { struct irdma_pd *pd = to_iwpd(ibah->pd); struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah); struct rdma_ah_attr *ah_attr = attr->ah_attr; const struct ib_gid_attr *sgid_attr; struct irdma_device *iwdev = to_iwdev(ibah->pd->device); struct irdma_pci_f *rf = iwdev->rf; struct irdma_sc_ah *sc_ah; struct irdma_ah_info *ah_info; union irdma_sockaddr sgid_addr, dgid_addr; int err; u8 dmac[ETH_ALEN]; ah->pd = pd; sc_ah = &ah->sc_ah; sc_ah->ah_info.vsi = &iwdev->vsi; irdma_sc_init_ah(&rf->sc_dev, sc_ah); ah->sgid_index = ah_attr->grh.sgid_index; sgid_attr = ah_attr->grh.sgid_attr; memcpy(&ah->dgid, &ah_attr->grh.dgid, sizeof(ah->dgid)); rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid_attr->gid); rdma_gid2ip((struct sockaddr *)&dgid_addr, &ah_attr->grh.dgid); ah->av.attrs = *ah_attr; ah->av.net_type = rdma_gid_attr_network_type(sgid_attr); ah_info = &sc_ah->ah_info; ah_info->pd_idx = pd->sc_pd.pd_id; if (ah_attr->ah_flags & IB_AH_GRH) { ah_info->flow_label = ah_attr->grh.flow_label; ah_info->hop_ttl = ah_attr->grh.hop_limit; ah_info->tc_tos = ah_attr->grh.traffic_class; } ether_addr_copy(dmac, ah_attr->roce.dmac); if (ah->av.net_type == RDMA_NETWORK_IPV4) { ah_info->ipv4_valid = true; ah_info->dest_ip_addr[0] = ntohl(dgid_addr.saddr_in.sin_addr.s_addr); ah_info->src_ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0], ah_info->dest_ip_addr[0]); if (ipv4_is_multicast(dgid_addr.saddr_in.sin_addr.s_addr)) { ah_info->do_lpbk = true; irdma_mcast_mac(ah_info->dest_ip_addr, dmac, true); } } else { irdma_copy_ip_ntohl(ah_info->dest_ip_addr, dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); irdma_copy_ip_ntohl(ah_info->src_ip_addr, sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr, ah_info->dest_ip_addr); if (rdma_is_multicast_addr(&dgid_addr.saddr_in6.sin6_addr)) { ah_info->do_lpbk = true; irdma_mcast_mac(ah_info->dest_ip_addr, dmac, false); } } err = rdma_read_gid_l2_fields(sgid_attr, &ah_info->vlan_tag, ah_info->mac_addr); if (err) return err; ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr, ah_info->ipv4_valid, dmac); if (ah_info->dst_arpindex == -1) return -EINVAL; if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb_vlan_mode) ah_info->vlan_tag = 0; if (ah_info->vlan_tag < VLAN_N_VID) { ah_info->insert_vlan_tag = true; ah_info->vlan_tag |= rt_tos2priority(ah_info->tc_tos) << VLAN_PRIO_SHIFT; } return 0; } /** * irdma_ah_exists - Check for existing identical AH * @iwdev: irdma device * @new_ah: AH to check for * * returns true if AH is found, false if not found. */ static bool irdma_ah_exists(struct irdma_device *iwdev, struct irdma_ah *new_ah) { struct irdma_ah *ah; u32 key = new_ah->sc_ah.ah_info.dest_ip_addr[0] ^ new_ah->sc_ah.ah_info.dest_ip_addr[1] ^ new_ah->sc_ah.ah_info.dest_ip_addr[2] ^ new_ah->sc_ah.ah_info.dest_ip_addr[3]; hash_for_each_possible(iwdev->ah_hash_tbl, ah, list, key) { /* Set ah_valid and ah_id the same so memcmp can work */ new_ah->sc_ah.ah_info.ah_idx = ah->sc_ah.ah_info.ah_idx; new_ah->sc_ah.ah_info.ah_valid = ah->sc_ah.ah_info.ah_valid; if (!memcmp(&ah->sc_ah.ah_info, &new_ah->sc_ah.ah_info, sizeof(ah->sc_ah.ah_info))) { refcount_inc(&ah->refcnt); new_ah->parent_ah = ah; return true; } } return false; } /** * irdma_destroy_ah - Destroy address handle * @ibah: pointer to address handle * @ah_flags: flags for sleepable */ static int irdma_destroy_ah(struct ib_ah *ibah, u32 ah_flags) { struct irdma_device *iwdev = to_iwdev(ibah->device); struct irdma_ah *ah = to_iwah(ibah); if ((ah_flags & RDMA_DESTROY_AH_SLEEPABLE) && ah->parent_ah) { mutex_lock(&iwdev->ah_tbl_lock); if (!refcount_dec_and_test(&ah->parent_ah->refcnt)) { mutex_unlock(&iwdev->ah_tbl_lock); return 0; } hash_del(&ah->parent_ah->list); kfree(ah->parent_ah); mutex_unlock(&iwdev->ah_tbl_lock); } irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY, false, NULL, ah); irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah->sc_ah.ah_info.ah_idx); return 0; } /** * irdma_create_user_ah - create user address handle * @ibah: address handle * @attr: address handle attributes * @udata: User data * * returns 0 on success, error otherwise */ static int irdma_create_user_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr, struct ib_udata *udata) { #define IRDMA_CREATE_AH_MIN_RESP_LEN offsetofend(struct irdma_create_ah_resp, rsvd) struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah); struct irdma_device *iwdev = to_iwdev(ibah->pd->device); struct irdma_create_ah_resp uresp; struct irdma_ah *parent_ah; int err; if (udata && udata->outlen < IRDMA_CREATE_AH_MIN_RESP_LEN) return -EINVAL; err = irdma_setup_ah(ibah, attr); if (err) return err; mutex_lock(&iwdev->ah_tbl_lock); if (!irdma_ah_exists(iwdev, ah)) { err = irdma_create_hw_ah(iwdev, ah, true); if (err) { mutex_unlock(&iwdev->ah_tbl_lock); return err; } /* Add new AH to list */ parent_ah = kmemdup(ah, sizeof(*ah), GFP_KERNEL); if (parent_ah) { u32 key = parent_ah->sc_ah.ah_info.dest_ip_addr[0] ^ parent_ah->sc_ah.ah_info.dest_ip_addr[1] ^ parent_ah->sc_ah.ah_info.dest_ip_addr[2] ^ parent_ah->sc_ah.ah_info.dest_ip_addr[3]; ah->parent_ah = parent_ah; hash_add(iwdev->ah_hash_tbl, &parent_ah->list, key); refcount_set(&parent_ah->refcnt, 1); } } mutex_unlock(&iwdev->ah_tbl_lock); uresp.ah_id = ah->sc_ah.ah_info.ah_idx; err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); if (err) irdma_destroy_ah(ibah, attr->flags); return err; } /** * irdma_create_ah - create address handle * @ibah: address handle * @attr: address handle attributes * @udata: NULL * * returns 0 on success, error otherwise */ static int irdma_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr, struct ib_udata *udata) { struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah); struct irdma_device *iwdev = to_iwdev(ibah->pd->device); int err; err = irdma_setup_ah(ibah, attr); if (err) return err; err = irdma_create_hw_ah(iwdev, ah, attr->flags & RDMA_CREATE_AH_SLEEPABLE); return err; } /** * 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 rdma_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 enum rdma_link_layer irdma_get_link_layer(struct ib_device *ibdev, u32 port_num) { return IB_LINK_LAYER_ETHERNET; } static const struct ib_device_ops irdma_roce_dev_ops = { .attach_mcast = irdma_attach_mcast, .create_ah = irdma_create_ah, .create_user_ah = irdma_create_user_ah, .destroy_ah = irdma_destroy_ah, .detach_mcast = irdma_detach_mcast, .get_link_layer = irdma_get_link_layer, .get_port_immutable = irdma_roce_port_immutable, .modify_qp = irdma_modify_qp_roce, .query_ah = irdma_query_ah, .query_pkey = irdma_query_pkey, }; static const struct ib_device_ops irdma_iw_dev_ops = { .get_port_immutable = irdma_iw_port_immutable, .iw_accept = irdma_accept, .iw_add_ref = irdma_qp_add_ref, .iw_connect = irdma_connect, .iw_create_listen = irdma_create_listen, .iw_destroy_listen = irdma_destroy_listen, .iw_get_qp = irdma_get_qp, .iw_reject = irdma_reject, .iw_rem_ref = irdma_qp_rem_ref, .modify_qp = irdma_modify_qp, .query_gid = irdma_query_gid, }; static const struct ib_device_ops irdma_dev_ops = { .owner = THIS_MODULE, .driver_id = RDMA_DRIVER_IRDMA, .uverbs_abi_ver = IRDMA_ABI_VER, .alloc_hw_port_stats = irdma_alloc_hw_port_stats, .alloc_mr = irdma_alloc_mr, .alloc_mw = irdma_alloc_mw, .alloc_pd = irdma_alloc_pd, .alloc_ucontext = irdma_alloc_ucontext, .create_cq = irdma_create_cq, .create_qp = irdma_create_qp, .dealloc_driver = irdma_ib_dealloc_device, .dealloc_mw = irdma_dealloc_mw, .dealloc_pd = irdma_dealloc_pd, .dealloc_ucontext = irdma_dealloc_ucontext, .dereg_mr = irdma_dereg_mr, .destroy_cq = irdma_destroy_cq, .destroy_qp = irdma_destroy_qp, .disassociate_ucontext = irdma_disassociate_ucontext, .get_dev_fw_str = irdma_get_dev_fw_str, .get_dma_mr = irdma_get_dma_mr, .get_hw_stats = irdma_get_hw_stats, .map_mr_sg = irdma_map_mr_sg, .mmap = irdma_mmap, .mmap_free = irdma_mmap_free, .poll_cq = irdma_poll_cq, .post_recv = irdma_post_recv, .post_send = irdma_post_send, .query_device = irdma_query_device, .query_port = irdma_query_port, .query_qp = irdma_query_qp, .reg_user_mr = irdma_reg_user_mr, .reg_user_mr_dmabuf = irdma_reg_user_mr_dmabuf, .req_notify_cq = irdma_req_notify_cq, .resize_cq = irdma_resize_cq, INIT_RDMA_OBJ_SIZE(ib_pd, irdma_pd, ibpd), INIT_RDMA_OBJ_SIZE(ib_ucontext, irdma_ucontext, ibucontext), INIT_RDMA_OBJ_SIZE(ib_ah, irdma_ah, ibah), INIT_RDMA_OBJ_SIZE(ib_cq, irdma_cq, ibcq), INIT_RDMA_OBJ_SIZE(ib_mw, irdma_mr, ibmw), INIT_RDMA_OBJ_SIZE(ib_qp, irdma_qp, ibqp), }; /** * irdma_init_roce_device - initialization of roce rdma device * @iwdev: irdma device */ static void irdma_init_roce_device(struct irdma_device *iwdev) { iwdev->ibdev.node_type = RDMA_NODE_IB_CA; addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid, iwdev->netdev->dev_addr); ib_set_device_ops(&iwdev->ibdev, &irdma_roce_dev_ops); } /** * irdma_init_iw_device - initialization of iwarp rdma device * @iwdev: irdma device */ static void irdma_init_iw_device(struct irdma_device *iwdev) { struct net_device *netdev = iwdev->netdev; iwdev->ibdev.node_type = RDMA_NODE_RNIC; addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid, netdev->dev_addr); memcpy(iwdev->ibdev.iw_ifname, netdev->name, sizeof(iwdev->ibdev.iw_ifname)); ib_set_device_ops(&iwdev->ibdev, &irdma_iw_dev_ops); } /** * irdma_init_rdma_device - initialization of rdma device * @iwdev: irdma device */ static void irdma_init_rdma_device(struct irdma_device *iwdev) { struct pci_dev *pcidev = iwdev->rf->pcidev; if (iwdev->roce_mode) irdma_init_roce_device(iwdev); else irdma_init_iw_device(iwdev); iwdev->ibdev.phys_port_cnt = 1; iwdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count; iwdev->ibdev.dev.parent = &pcidev->dev; ib_set_device_ops(&iwdev->ibdev, &irdma_dev_ops); } /** * 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); } /** * irdma_ib_register_device - register irdma device to IB core * @iwdev: irdma device */ int irdma_ib_register_device(struct irdma_device *iwdev) { int ret; irdma_init_rdma_device(iwdev); ret = ib_device_set_netdev(&iwdev->ibdev, iwdev->netdev, 1); if (ret) goto error; dma_set_max_seg_size(iwdev->rf->hw.device, UINT_MAX); ret = ib_register_device(&iwdev->ibdev, "irdma%d", iwdev->rf->hw.device); if (ret) goto error; iwdev->iw_status = 1; irdma_port_ibevent(iwdev); return 0; error: if (ret) ibdev_dbg(&iwdev->ibdev, "VERBS: Register RDMA device fail\n"); return ret; } /** * irdma_ib_dealloc_device * @ibdev: ib device * * callback from ibdev dealloc_driver to deallocate resources * unber irdma device */ void irdma_ib_dealloc_device(struct ib_device *ibdev) { struct irdma_device *iwdev = to_iwdev(ibdev); irdma_rt_deinit_hw(iwdev); irdma_ctrl_deinit_hw(iwdev->rf); kfree(iwdev->rf); }
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