/* * Copyright (c) 2016 Hisilicon Limited. * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #include #include #include #include #include #include "hns_roce_common.h" #include "hns_roce_device.h" #include "hns_roce_hem.h" /** * hns_get_gid_index - Get gid index. * @hr_dev: pointer to structure hns_roce_dev. * @port: port, value range: 0 ~ MAX * @gid_index: gid_index, value range: 0 ~ MAX * Description: * N ports shared gids, allocation method as follow: * GID[0][0], GID[1][0],.....GID[N - 1][0], * GID[0][0], GID[1][0],.....GID[N - 1][0], * And so on */ u8 hns_get_gid_index(struct hns_roce_dev *hr_dev, u8 port, int gid_index) { return gid_index * hr_dev->caps.num_ports + port; } static int hns_roce_set_mac(struct hns_roce_dev *hr_dev, u8 port, u8 *addr) { u8 phy_port; u32 i; if (hr_dev->pci_dev->revision >= PCI_REVISION_ID_HIP09) return 0; if (!memcmp(hr_dev->dev_addr[port], addr, ETH_ALEN)) return 0; for (i = 0; i < ETH_ALEN; i++) hr_dev->dev_addr[port][i] = addr[i]; phy_port = hr_dev->iboe.phy_port[port]; return hr_dev->hw->set_mac(hr_dev, phy_port, addr); } static int hns_roce_add_gid(const struct ib_gid_attr *attr, void **context) { struct hns_roce_dev *hr_dev = to_hr_dev(attr->device); u8 port = attr->port_num - 1; int ret; if (port >= hr_dev->caps.num_ports) return -EINVAL; ret = hr_dev->hw->set_gid(hr_dev, port, attr->index, &attr->gid, attr); return ret; } static int hns_roce_del_gid(const struct ib_gid_attr *attr, void **context) { struct hns_roce_dev *hr_dev = to_hr_dev(attr->device); u8 port = attr->port_num - 1; int ret; if (port >= hr_dev->caps.num_ports) return -EINVAL; ret = hr_dev->hw->set_gid(hr_dev, port, attr->index, NULL, NULL); return ret; } static int handle_en_event(struct hns_roce_dev *hr_dev, u8 port, unsigned long event) { struct device *dev = hr_dev->dev; struct net_device *netdev; int ret = 0; netdev = hr_dev->iboe.netdevs[port]; if (!netdev) { dev_err(dev, "Can't find netdev on port(%u)!\n", port); return -ENODEV; } switch (event) { case NETDEV_UP: case NETDEV_CHANGE: case NETDEV_REGISTER: case NETDEV_CHANGEADDR: ret = hns_roce_set_mac(hr_dev, port, netdev->dev_addr); break; case NETDEV_DOWN: /* * In v1 engine, only support all ports closed together. */ break; default: dev_dbg(dev, "NETDEV event = 0x%x!\n", (u32)(event)); break; } return ret; } static int hns_roce_netdev_event(struct notifier_block *self, unsigned long event, void *ptr) { struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct hns_roce_ib_iboe *iboe = NULL; struct hns_roce_dev *hr_dev = NULL; int ret; u8 port; hr_dev = container_of(self, struct hns_roce_dev, iboe.nb); iboe = &hr_dev->iboe; for (port = 0; port < hr_dev->caps.num_ports; port++) { if (dev == iboe->netdevs[port]) { ret = handle_en_event(hr_dev, port, event); if (ret) return NOTIFY_DONE; break; } } return NOTIFY_DONE; } static int hns_roce_setup_mtu_mac(struct hns_roce_dev *hr_dev) { int ret; u8 i; for (i = 0; i < hr_dev->caps.num_ports; i++) { if (hr_dev->hw->set_mtu) hr_dev->hw->set_mtu(hr_dev, hr_dev->iboe.phy_port[i], hr_dev->caps.max_mtu); ret = hns_roce_set_mac(hr_dev, i, hr_dev->iboe.netdevs[i]->dev_addr); if (ret) return ret; } return 0; } static int hns_roce_query_device(struct ib_device *ib_dev, struct ib_device_attr *props, struct ib_udata *uhw) { struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); memset(props, 0, sizeof(*props)); props->fw_ver = hr_dev->caps.fw_ver; props->sys_image_guid = cpu_to_be64(hr_dev->sys_image_guid); props->max_mr_size = (u64)(~(0ULL)); props->page_size_cap = hr_dev->caps.page_size_cap; props->vendor_id = hr_dev->vendor_id; props->vendor_part_id = hr_dev->vendor_part_id; props->hw_ver = hr_dev->hw_rev; props->max_qp = hr_dev->caps.num_qps; props->max_qp_wr = hr_dev->caps.max_wqes; props->device_cap_flags = IB_DEVICE_PORT_ACTIVE_EVENT | IB_DEVICE_RC_RNR_NAK_GEN; props->max_send_sge = hr_dev->caps.max_sq_sg; props->max_recv_sge = hr_dev->caps.max_rq_sg; props->max_sge_rd = 1; props->max_cq = hr_dev->caps.num_cqs; props->max_cqe = hr_dev->caps.max_cqes; props->max_mr = hr_dev->caps.num_mtpts; props->max_pd = hr_dev->caps.num_pds; props->max_qp_rd_atom = hr_dev->caps.max_qp_dest_rdma; props->max_qp_init_rd_atom = hr_dev->caps.max_qp_init_rdma; props->atomic_cap = hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_ATOMIC ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; props->max_pkeys = 1; props->local_ca_ack_delay = hr_dev->caps.local_ca_ack_delay; if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) { props->max_srq = hr_dev->caps.num_srqs; props->max_srq_wr = hr_dev->caps.max_srq_wrs; props->max_srq_sge = hr_dev->caps.max_srq_sges; } if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_FRMR) { props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; props->max_fast_reg_page_list_len = HNS_ROCE_FRMR_MAX_PA; } return 0; } static int hns_roce_query_port(struct ib_device *ib_dev, u8 port_num, struct ib_port_attr *props) { struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); struct device *dev = hr_dev->dev; struct net_device *net_dev; unsigned long flags; enum ib_mtu mtu; u8 port; port = port_num - 1; /* props being zeroed by the caller, avoid zeroing it here */ props->max_mtu = hr_dev->caps.max_mtu; props->gid_tbl_len = hr_dev->caps.gid_table_len[port]; props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; props->max_msg_sz = HNS_ROCE_MAX_MSG_LEN; props->pkey_tbl_len = 1; props->active_width = IB_WIDTH_4X; props->active_speed = 1; spin_lock_irqsave(&hr_dev->iboe.lock, flags); net_dev = hr_dev->iboe.netdevs[port]; if (!net_dev) { spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); dev_err(dev, "Find netdev %u failed!\n", port); return -EINVAL; } mtu = iboe_get_mtu(net_dev->mtu); props->active_mtu = mtu ? min(props->max_mtu, mtu) : IB_MTU_256; props->state = netif_running(net_dev) && netif_carrier_ok(net_dev) ? IB_PORT_ACTIVE : IB_PORT_DOWN; props->phys_state = props->state == IB_PORT_ACTIVE ? IB_PORT_PHYS_STATE_LINK_UP : IB_PORT_PHYS_STATE_DISABLED; spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); return 0; } static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device, u8 port_num) { return IB_LINK_LAYER_ETHERNET; } static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index, u16 *pkey) { *pkey = PKEY_ID; return 0; } static int hns_roce_modify_device(struct ib_device *ib_dev, int mask, struct ib_device_modify *props) { unsigned long flags; if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) return -EOPNOTSUPP; if (mask & IB_DEVICE_MODIFY_NODE_DESC) { spin_lock_irqsave(&to_hr_dev(ib_dev)->sm_lock, flags); memcpy(ib_dev->node_desc, props->node_desc, NODE_DESC_SIZE); spin_unlock_irqrestore(&to_hr_dev(ib_dev)->sm_lock, flags); } return 0; } static int hns_roce_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) { int ret; struct hns_roce_ucontext *context = to_hr_ucontext(uctx); struct hns_roce_ib_alloc_ucontext_resp resp = {}; struct hns_roce_dev *hr_dev = to_hr_dev(uctx->device); if (!hr_dev->active) return -EAGAIN; resp.qp_tab_size = hr_dev->caps.num_qps; ret = hns_roce_uar_alloc(hr_dev, &context->uar); if (ret) goto error_fail_uar_alloc; if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) { INIT_LIST_HEAD(&context->page_list); mutex_init(&context->page_mutex); } resp.cqe_size = hr_dev->caps.cqe_sz; ret = ib_copy_to_udata(udata, &resp, min(udata->outlen, sizeof(resp))); if (ret) goto error_fail_copy_to_udata; return 0; error_fail_copy_to_udata: hns_roce_uar_free(hr_dev, &context->uar); error_fail_uar_alloc: return ret; } static void hns_roce_dealloc_ucontext(struct ib_ucontext *ibcontext) { struct hns_roce_ucontext *context = to_hr_ucontext(ibcontext); hns_roce_uar_free(to_hr_dev(ibcontext->device), &context->uar); } static int hns_roce_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) { struct hns_roce_dev *hr_dev = to_hr_dev(context->device); switch (vma->vm_pgoff) { case 0: return rdma_user_mmap_io(context, vma, to_hr_ucontext(context)->uar.pfn, PAGE_SIZE, pgprot_noncached(vma->vm_page_prot), NULL); /* vm_pgoff: 1 -- TPTR */ case 1: if (!hr_dev->tptr_dma_addr || !hr_dev->tptr_size) return -EINVAL; /* * FIXME: using io_remap_pfn_range on the dma address returned * by dma_alloc_coherent is totally wrong. */ return rdma_user_mmap_io(context, vma, hr_dev->tptr_dma_addr >> PAGE_SHIFT, hr_dev->tptr_size, vma->vm_page_prot, NULL); default: return -EINVAL; } } static int hns_roce_port_immutable(struct ib_device *ib_dev, u8 port_num, struct ib_port_immutable *immutable) { struct ib_port_attr attr; int ret; ret = ib_query_port(ib_dev, port_num, &attr); if (ret) return ret; immutable->pkey_tbl_len = attr.pkey_tbl_len; immutable->gid_tbl_len = attr.gid_tbl_len; immutable->max_mad_size = IB_MGMT_MAD_SIZE; immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE; if (to_hr_dev(ib_dev)->caps.flags & HNS_ROCE_CAP_FLAG_ROCE_V1_V2) immutable->core_cap_flags |= RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; return 0; } static void hns_roce_disassociate_ucontext(struct ib_ucontext *ibcontext) { } static void hns_roce_unregister_device(struct hns_roce_dev *hr_dev) { struct hns_roce_ib_iboe *iboe = &hr_dev->iboe; hr_dev->active = false; unregister_netdevice_notifier(&iboe->nb); ib_unregister_device(&hr_dev->ib_dev); } static const struct ib_device_ops hns_roce_dev_ops = { .owner = THIS_MODULE, .driver_id = RDMA_DRIVER_HNS, .uverbs_abi_ver = 1, .uverbs_no_driver_id_binding = 1, .add_gid = hns_roce_add_gid, .alloc_pd = hns_roce_alloc_pd, .alloc_ucontext = hns_roce_alloc_ucontext, .create_ah = hns_roce_create_ah, .create_user_ah = hns_roce_create_ah, .create_cq = hns_roce_create_cq, .create_qp = hns_roce_create_qp, .dealloc_pd = hns_roce_dealloc_pd, .dealloc_ucontext = hns_roce_dealloc_ucontext, .del_gid = hns_roce_del_gid, .dereg_mr = hns_roce_dereg_mr, .destroy_ah = hns_roce_destroy_ah, .destroy_cq = hns_roce_destroy_cq, .disassociate_ucontext = hns_roce_disassociate_ucontext, .fill_res_cq_entry = hns_roce_fill_res_cq_entry, .get_dma_mr = hns_roce_get_dma_mr, .get_link_layer = hns_roce_get_link_layer, .get_port_immutable = hns_roce_port_immutable, .mmap = hns_roce_mmap, .modify_device = hns_roce_modify_device, .modify_qp = hns_roce_modify_qp, .query_ah = hns_roce_query_ah, .query_device = hns_roce_query_device, .query_pkey = hns_roce_query_pkey, .query_port = hns_roce_query_port, .reg_user_mr = hns_roce_reg_user_mr, INIT_RDMA_OBJ_SIZE(ib_ah, hns_roce_ah, ibah), INIT_RDMA_OBJ_SIZE(ib_cq, hns_roce_cq, ib_cq), INIT_RDMA_OBJ_SIZE(ib_pd, hns_roce_pd, ibpd), INIT_RDMA_OBJ_SIZE(ib_ucontext, hns_roce_ucontext, ibucontext), }; static const struct ib_device_ops hns_roce_dev_mr_ops = { .rereg_user_mr = hns_roce_rereg_user_mr, }; static const struct ib_device_ops hns_roce_dev_mw_ops = { .alloc_mw = hns_roce_alloc_mw, .dealloc_mw = hns_roce_dealloc_mw, INIT_RDMA_OBJ_SIZE(ib_mw, hns_roce_mw, ibmw), }; static const struct ib_device_ops hns_roce_dev_frmr_ops = { .alloc_mr = hns_roce_alloc_mr, .map_mr_sg = hns_roce_map_mr_sg, }; static const struct ib_device_ops hns_roce_dev_srq_ops = { .create_srq = hns_roce_create_srq, .destroy_srq = hns_roce_destroy_srq, INIT_RDMA_OBJ_SIZE(ib_srq, hns_roce_srq, ibsrq), }; static int hns_roce_register_device(struct hns_roce_dev *hr_dev) { int ret; struct hns_roce_ib_iboe *iboe = NULL; struct ib_device *ib_dev = NULL; struct device *dev = hr_dev->dev; unsigned int i; iboe = &hr_dev->iboe; spin_lock_init(&iboe->lock); ib_dev = &hr_dev->ib_dev; ib_dev->node_type = RDMA_NODE_IB_CA; ib_dev->dev.parent = dev; ib_dev->phys_port_cnt = hr_dev->caps.num_ports; ib_dev->local_dma_lkey = hr_dev->caps.reserved_lkey; ib_dev->num_comp_vectors = hr_dev->caps.num_comp_vectors; if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_REREG_MR) ib_set_device_ops(ib_dev, &hns_roce_dev_mr_ops); /* MW */ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_MW) ib_set_device_ops(ib_dev, &hns_roce_dev_mw_ops); /* FRMR */ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_FRMR) ib_set_device_ops(ib_dev, &hns_roce_dev_frmr_ops); /* SRQ */ if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) { ib_set_device_ops(ib_dev, &hns_roce_dev_srq_ops); ib_set_device_ops(ib_dev, hr_dev->hw->hns_roce_dev_srq_ops); } ib_set_device_ops(ib_dev, hr_dev->hw->hns_roce_dev_ops); ib_set_device_ops(ib_dev, &hns_roce_dev_ops); for (i = 0; i < hr_dev->caps.num_ports; i++) { if (!hr_dev->iboe.netdevs[i]) continue; ret = ib_device_set_netdev(ib_dev, hr_dev->iboe.netdevs[i], i + 1); if (ret) return ret; } dma_set_max_seg_size(dev, UINT_MAX); ret = ib_register_device(ib_dev, "hns_%d", dev); if (ret) { dev_err(dev, "ib_register_device failed!\n"); return ret; } ret = hns_roce_setup_mtu_mac(hr_dev); if (ret) { dev_err(dev, "setup_mtu_mac failed!\n"); goto error_failed_setup_mtu_mac; } iboe->nb.notifier_call = hns_roce_netdev_event; ret = register_netdevice_notifier(&iboe->nb); if (ret) { dev_err(dev, "register_netdevice_notifier failed!\n"); goto error_failed_setup_mtu_mac; } hr_dev->active = true; return 0; error_failed_setup_mtu_mac: ib_unregister_device(ib_dev); return ret; } static int hns_roce_init_hem(struct hns_roce_dev *hr_dev) { struct device *dev = hr_dev->dev; int ret; ret = hns_roce_init_hem_table(hr_dev, &hr_dev->mr_table.mtpt_table, HEM_TYPE_MTPT, hr_dev->caps.mtpt_entry_sz, hr_dev->caps.num_mtpts, 1); if (ret) { dev_err(dev, "Failed to init MTPT context memory, aborting.\n"); return ret; } ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.qp_table, HEM_TYPE_QPC, hr_dev->caps.qpc_sz, hr_dev->caps.num_qps, 1); if (ret) { dev_err(dev, "Failed to init QP context memory, aborting.\n"); goto err_unmap_dmpt; } ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.irrl_table, HEM_TYPE_IRRL, hr_dev->caps.irrl_entry_sz * hr_dev->caps.max_qp_init_rdma, hr_dev->caps.num_qps, 1); if (ret) { dev_err(dev, "Failed to init irrl_table memory, aborting.\n"); goto err_unmap_qp; } if (hr_dev->caps.trrl_entry_sz) { ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.trrl_table, HEM_TYPE_TRRL, hr_dev->caps.trrl_entry_sz * hr_dev->caps.max_qp_dest_rdma, hr_dev->caps.num_qps, 1); if (ret) { dev_err(dev, "Failed to init trrl_table memory, aborting.\n"); goto err_unmap_irrl; } } ret = hns_roce_init_hem_table(hr_dev, &hr_dev->cq_table.table, HEM_TYPE_CQC, hr_dev->caps.cqc_entry_sz, hr_dev->caps.num_cqs, 1); if (ret) { dev_err(dev, "Failed to init CQ context memory, aborting.\n"); goto err_unmap_trrl; } if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) { ret = hns_roce_init_hem_table(hr_dev, &hr_dev->srq_table.table, HEM_TYPE_SRQC, hr_dev->caps.srqc_entry_sz, hr_dev->caps.num_srqs, 1); if (ret) { dev_err(dev, "Failed to init SRQ context memory, aborting.\n"); goto err_unmap_cq; } } if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_FLOW_CTRL) { ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.sccc_table, HEM_TYPE_SCCC, hr_dev->caps.sccc_sz, hr_dev->caps.num_qps, 1); if (ret) { dev_err(dev, "Failed to init SCC context memory, aborting.\n"); goto err_unmap_srq; } } if (hr_dev->caps.qpc_timer_entry_sz) { ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qpc_timer_table, HEM_TYPE_QPC_TIMER, hr_dev->caps.qpc_timer_entry_sz, hr_dev->caps.num_qpc_timer, 1); if (ret) { dev_err(dev, "Failed to init QPC timer memory, aborting.\n"); goto err_unmap_ctx; } } if (hr_dev->caps.cqc_timer_entry_sz) { ret = hns_roce_init_hem_table(hr_dev, &hr_dev->cqc_timer_table, HEM_TYPE_CQC_TIMER, hr_dev->caps.cqc_timer_entry_sz, hr_dev->caps.num_cqc_timer, 1); if (ret) { dev_err(dev, "Failed to init CQC timer memory, aborting.\n"); goto err_unmap_qpc_timer; } } if (hr_dev->caps.gmv_entry_sz) { ret = hns_roce_init_hem_table(hr_dev, &hr_dev->gmv_table, HEM_TYPE_GMV, hr_dev->caps.gmv_entry_sz, hr_dev->caps.gmv_entry_num, 1); if (ret) { dev_err(dev, "failed to init gmv table memory, ret = %d\n", ret); goto err_unmap_cqc_timer; } } return 0; err_unmap_cqc_timer: if (hr_dev->caps.cqc_timer_entry_sz) hns_roce_cleanup_hem_table(hr_dev, &hr_dev->cqc_timer_table); err_unmap_qpc_timer: if (hr_dev->caps.qpc_timer_entry_sz) hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qpc_timer_table); err_unmap_ctx: if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_FLOW_CTRL) hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.sccc_table); err_unmap_srq: if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) hns_roce_cleanup_hem_table(hr_dev, &hr_dev->srq_table.table); err_unmap_cq: hns_roce_cleanup_hem_table(hr_dev, &hr_dev->cq_table.table); err_unmap_trrl: if (hr_dev->caps.trrl_entry_sz) hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.trrl_table); err_unmap_irrl: hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.irrl_table); err_unmap_qp: hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.qp_table); err_unmap_dmpt: hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtpt_table); return ret; } /** * hns_roce_setup_hca - setup host channel adapter * @hr_dev: pointer to hns roce device * Return : int */ static int hns_roce_setup_hca(struct hns_roce_dev *hr_dev) { struct device *dev = hr_dev->dev; int ret; spin_lock_init(&hr_dev->sm_lock); spin_lock_init(&hr_dev->bt_cmd_lock); if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) { INIT_LIST_HEAD(&hr_dev->pgdir_list); mutex_init(&hr_dev->pgdir_mutex); } ret = hns_roce_init_uar_table(hr_dev); if (ret) { dev_err(dev, "Failed to initialize uar table. aborting\n"); return ret; } ret = hns_roce_uar_alloc(hr_dev, &hr_dev->priv_uar); if (ret) { dev_err(dev, "Failed to allocate priv_uar.\n"); goto err_uar_table_free; } ret = hns_roce_init_pd_table(hr_dev); if (ret) { dev_err(dev, "Failed to init protected domain table.\n"); goto err_uar_alloc_free; } ret = hns_roce_init_mr_table(hr_dev); if (ret) { dev_err(dev, "Failed to init memory region table.\n"); goto err_pd_table_free; } ret = hns_roce_init_cq_table(hr_dev); if (ret) { dev_err(dev, "Failed to init completion queue table.\n"); goto err_mr_table_free; } ret = hns_roce_init_qp_table(hr_dev); if (ret) { dev_err(dev, "Failed to init queue pair table.\n"); goto err_cq_table_free; } if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) { ret = hns_roce_init_srq_table(hr_dev); if (ret) { dev_err(dev, "Failed to init share receive queue table.\n"); goto err_qp_table_free; } } return 0; err_qp_table_free: if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) hns_roce_cleanup_qp_table(hr_dev); err_cq_table_free: hns_roce_cleanup_cq_table(hr_dev); err_mr_table_free: hns_roce_cleanup_mr_table(hr_dev); err_pd_table_free: hns_roce_cleanup_pd_table(hr_dev); err_uar_alloc_free: hns_roce_uar_free(hr_dev, &hr_dev->priv_uar); err_uar_table_free: hns_roce_cleanup_uar_table(hr_dev); return ret; } static void check_and_get_armed_cq(struct list_head *cq_list, struct ib_cq *cq) { struct hns_roce_cq *hr_cq = to_hr_cq(cq); unsigned long flags; spin_lock_irqsave(&hr_cq->lock, flags); if (cq->comp_handler) { if (!hr_cq->is_armed) { hr_cq->is_armed = 1; list_add_tail(&hr_cq->node, cq_list); } } spin_unlock_irqrestore(&hr_cq->lock, flags); } void hns_roce_handle_device_err(struct hns_roce_dev *hr_dev) { struct hns_roce_qp *hr_qp; struct hns_roce_cq *hr_cq; struct list_head cq_list; unsigned long flags_qp; unsigned long flags; INIT_LIST_HEAD(&cq_list); spin_lock_irqsave(&hr_dev->qp_list_lock, flags); list_for_each_entry(hr_qp, &hr_dev->qp_list, node) { spin_lock_irqsave(&hr_qp->sq.lock, flags_qp); if (hr_qp->sq.tail != hr_qp->sq.head) check_and_get_armed_cq(&cq_list, hr_qp->ibqp.send_cq); spin_unlock_irqrestore(&hr_qp->sq.lock, flags_qp); spin_lock_irqsave(&hr_qp->rq.lock, flags_qp); if ((!hr_qp->ibqp.srq) && (hr_qp->rq.tail != hr_qp->rq.head)) check_and_get_armed_cq(&cq_list, hr_qp->ibqp.recv_cq); spin_unlock_irqrestore(&hr_qp->rq.lock, flags_qp); } list_for_each_entry(hr_cq, &cq_list, node) hns_roce_cq_completion(hr_dev, hr_cq->cqn); spin_unlock_irqrestore(&hr_dev->qp_list_lock, flags); } int hns_roce_init(struct hns_roce_dev *hr_dev) { struct device *dev = hr_dev->dev; int ret; if (hr_dev->hw->reset) { ret = hr_dev->hw->reset(hr_dev, true); if (ret) { dev_err(dev, "Reset RoCE engine failed!\n"); return ret; } } hr_dev->is_reset = false; if (hr_dev->hw->cmq_init) { ret = hr_dev->hw->cmq_init(hr_dev); if (ret) { dev_err(dev, "Init RoCE Command Queue failed!\n"); goto error_failed_cmq_init; } } ret = hr_dev->hw->hw_profile(hr_dev); if (ret) { dev_err(dev, "Get RoCE engine profile failed!\n"); goto error_failed_cmd_init; } ret = hns_roce_cmd_init(hr_dev); if (ret) { dev_err(dev, "cmd init failed!\n"); goto error_failed_cmd_init; } /* EQ depends on poll mode, event mode depends on EQ */ ret = hr_dev->hw->init_eq(hr_dev); if (ret) { dev_err(dev, "eq init failed!\n"); goto error_failed_eq_table; } if (hr_dev->cmd_mod) { ret = hns_roce_cmd_use_events(hr_dev); if (ret) { dev_warn(dev, "Cmd event mode failed, set back to poll!\n"); hns_roce_cmd_use_polling(hr_dev); } } ret = hns_roce_init_hem(hr_dev); if (ret) { dev_err(dev, "init HEM(Hardware Entry Memory) failed!\n"); goto error_failed_init_hem; } ret = hns_roce_setup_hca(hr_dev); if (ret) { dev_err(dev, "setup hca failed!\n"); goto error_failed_setup_hca; } if (hr_dev->hw->hw_init) { ret = hr_dev->hw->hw_init(hr_dev); if (ret) { dev_err(dev, "hw_init failed!\n"); goto error_failed_engine_init; } } INIT_LIST_HEAD(&hr_dev->qp_list); spin_lock_init(&hr_dev->qp_list_lock); ret = hns_roce_register_device(hr_dev); if (ret) goto error_failed_register_device; return 0; error_failed_register_device: if (hr_dev->hw->hw_exit) hr_dev->hw->hw_exit(hr_dev); error_failed_engine_init: hns_roce_cleanup_bitmap(hr_dev); error_failed_setup_hca: hns_roce_cleanup_hem(hr_dev); error_failed_init_hem: if (hr_dev->cmd_mod) hns_roce_cmd_use_polling(hr_dev); hr_dev->hw->cleanup_eq(hr_dev); error_failed_eq_table: hns_roce_cmd_cleanup(hr_dev); error_failed_cmd_init: if (hr_dev->hw->cmq_exit) hr_dev->hw->cmq_exit(hr_dev); error_failed_cmq_init: if (hr_dev->hw->reset) { if (hr_dev->hw->reset(hr_dev, false)) dev_err(dev, "Dereset RoCE engine failed!\n"); } return ret; } void hns_roce_exit(struct hns_roce_dev *hr_dev) { hns_roce_unregister_device(hr_dev); if (hr_dev->hw->hw_exit) hr_dev->hw->hw_exit(hr_dev); hns_roce_cleanup_bitmap(hr_dev); hns_roce_cleanup_hem(hr_dev); if (hr_dev->cmd_mod) hns_roce_cmd_use_polling(hr_dev); hr_dev->hw->cleanup_eq(hr_dev); hns_roce_cmd_cleanup(hr_dev); if (hr_dev->hw->cmq_exit) hr_dev->hw->cmq_exit(hr_dev); if (hr_dev->hw->reset) hr_dev->hw->reset(hr_dev, false); } MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Wei Hu "); MODULE_AUTHOR("Nenglong Zhao "); MODULE_AUTHOR("Lijun Ou "); MODULE_DESCRIPTION("HNS RoCE Driver");