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- /*
- * 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 <linux/acpi.h>
- #include <linux/of_platform.h>
- #include <linux/module.h>
- #include <rdma/ib_addr.h>
- #include <rdma/ib_smi.h>
- #include <rdma/ib_user_verbs.h>
- #include <rdma/ib_cache.h>
- #include "hns_roce_common.h"
- #include "hns_roce_device.h"
- #include <rdma/hns-abi.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
- */
- int hns_get_gid_index(struct hns_roce_dev *hr_dev, u8 port, int gid_index)
- {
- return gid_index * hr_dev->caps.num_ports + port;
- }
- EXPORT_SYMBOL_GPL(hns_get_gid_index);
- static int hns_roce_set_mac(struct hns_roce_dev *hr_dev, u8 port, u8 *addr)
- {
- u8 phy_port;
- u32 i = 0;
- if (!memcmp(hr_dev->dev_addr[port], addr, MAC_ADDR_OCTET_NUM))
- return 0;
- for (i = 0; i < MAC_ADDR_OCTET_NUM; 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;
- unsigned long flags;
- int ret;
- if (port >= hr_dev->caps.num_ports)
- return -EINVAL;
- spin_lock_irqsave(&hr_dev->iboe.lock, flags);
- ret = hr_dev->hw->set_gid(hr_dev, port, attr->index, &attr->gid, attr);
- spin_unlock_irqrestore(&hr_dev->iboe.lock, flags);
- 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);
- struct ib_gid_attr zattr = { };
- u8 port = attr->port_num - 1;
- unsigned long flags;
- int ret;
- if (port >= hr_dev->caps.num_ports)
- return -EINVAL;
- spin_lock_irqsave(&hr_dev->iboe.lock, flags);
- ret = hr_dev->hw->set_gid(hr_dev, port, attr->index, &zgid, &zattr);
- spin_unlock_irqrestore(&hr_dev->iboe.lock, flags);
- 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, "port(%d) can't find netdev\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;
- u8 port = 0;
- int ret = 0;
- 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->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 = IB_ATOMIC_NONE;
- props->max_pkeys = 1;
- props->local_ca_ack_delay = hr_dev->caps.local_ca_ack_delay;
- return 0;
- }
- static struct net_device *hns_roce_get_netdev(struct ib_device *ib_dev,
- u8 port_num)
- {
- struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev);
- struct net_device *ndev;
- if (port_num < 1 || port_num > hr_dev->caps.num_ports)
- return NULL;
- rcu_read_lock();
- ndev = hr_dev->iboe.netdevs[port_num - 1];
- if (ndev)
- dev_hold(ndev);
- rcu_read_unlock();
- return ndev;
- }
- 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;
- assert(port_num > 0);
- 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 %d failed!\r\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) ? 5 : 3;
- 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_modify_port(struct ib_device *ib_dev, u8 port_num, int mask,
- struct ib_port_modify *props)
- {
- return 0;
- }
- static struct ib_ucontext *hns_roce_alloc_ucontext(struct ib_device *ib_dev,
- struct ib_udata *udata)
- {
- int ret = 0;
- struct hns_roce_ucontext *context;
- struct hns_roce_ib_alloc_ucontext_resp resp = {};
- struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev);
- if (!hr_dev->active)
- return ERR_PTR(-EAGAIN);
- resp.qp_tab_size = hr_dev->caps.num_qps;
- context = kmalloc(sizeof(*context), GFP_KERNEL);
- if (!context)
- return ERR_PTR(-ENOMEM);
- ret = hns_roce_uar_alloc(hr_dev, &context->uar);
- if (ret)
- goto error_fail_uar_alloc;
- INIT_LIST_HEAD(&context->vma_list);
- mutex_init(&context->vma_list_mutex);
- if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) {
- INIT_LIST_HEAD(&context->page_list);
- mutex_init(&context->page_mutex);
- }
- ret = ib_copy_to_udata(udata, &resp, sizeof(resp));
- if (ret)
- goto error_fail_copy_to_udata;
- return &context->ibucontext;
- error_fail_copy_to_udata:
- hns_roce_uar_free(hr_dev, &context->uar);
- error_fail_uar_alloc:
- kfree(context);
- return ERR_PTR(ret);
- }
- static int 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);
- kfree(context);
- return 0;
- }
- static void hns_roce_vma_open(struct vm_area_struct *vma)
- {
- vma->vm_ops = NULL;
- }
- static void hns_roce_vma_close(struct vm_area_struct *vma)
- {
- struct hns_roce_vma_data *vma_data;
- vma_data = (struct hns_roce_vma_data *)vma->vm_private_data;
- vma_data->vma = NULL;
- mutex_lock(vma_data->vma_list_mutex);
- list_del(&vma_data->list);
- mutex_unlock(vma_data->vma_list_mutex);
- kfree(vma_data);
- }
- static const struct vm_operations_struct hns_roce_vm_ops = {
- .open = hns_roce_vma_open,
- .close = hns_roce_vma_close,
- };
- static int hns_roce_set_vma_data(struct vm_area_struct *vma,
- struct hns_roce_ucontext *context)
- {
- struct list_head *vma_head = &context->vma_list;
- struct hns_roce_vma_data *vma_data;
- vma_data = kzalloc(sizeof(*vma_data), GFP_KERNEL);
- if (!vma_data)
- return -ENOMEM;
- vma_data->vma = vma;
- vma_data->vma_list_mutex = &context->vma_list_mutex;
- vma->vm_private_data = vma_data;
- vma->vm_ops = &hns_roce_vm_ops;
- mutex_lock(&context->vma_list_mutex);
- list_add(&vma_data->list, vma_head);
- mutex_unlock(&context->vma_list_mutex);
- return 0;
- }
- 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);
- if (((vma->vm_end - vma->vm_start) % PAGE_SIZE) != 0)
- return -EINVAL;
- if (vma->vm_pgoff == 0) {
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- if (io_remap_pfn_range(vma, vma->vm_start,
- to_hr_ucontext(context)->uar.pfn,
- PAGE_SIZE, vma->vm_page_prot))
- return -EAGAIN;
- } else if (vma->vm_pgoff == 1 && hr_dev->tptr_dma_addr &&
- hr_dev->tptr_size) {
- /* vm_pgoff: 1 -- TPTR */
- if (io_remap_pfn_range(vma, vma->vm_start,
- hr_dev->tptr_dma_addr >> PAGE_SHIFT,
- hr_dev->tptr_size,
- vma->vm_page_prot))
- return -EAGAIN;
- } else
- return -EINVAL;
- return hns_roce_set_vma_data(vma, to_hr_ucontext(context));
- }
- 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)
- {
- struct hns_roce_ucontext *context = to_hr_ucontext(ibcontext);
- struct hns_roce_vma_data *vma_data, *n;
- struct vm_area_struct *vma;
- mutex_lock(&context->vma_list_mutex);
- list_for_each_entry_safe(vma_data, n, &context->vma_list, list) {
- vma = vma_data->vma;
- zap_vma_ptes(vma, vma->vm_start, PAGE_SIZE);
- vma->vm_flags &= ~(VM_SHARED | VM_MAYSHARE);
- vma->vm_ops = NULL;
- list_del(&vma_data->list);
- kfree(vma_data);
- }
- mutex_unlock(&context->vma_list_mutex);
- }
- 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 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;
- iboe = &hr_dev->iboe;
- spin_lock_init(&iboe->lock);
- ib_dev = &hr_dev->ib_dev;
- strlcpy(ib_dev->name, "hns_%d", IB_DEVICE_NAME_MAX);
- ib_dev->owner = THIS_MODULE;
- 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;
- ib_dev->uverbs_abi_ver = 1;
- ib_dev->uverbs_cmd_mask =
- (1ULL << IB_USER_VERBS_CMD_GET_CONTEXT) |
- (1ULL << IB_USER_VERBS_CMD_QUERY_DEVICE) |
- (1ULL << IB_USER_VERBS_CMD_QUERY_PORT) |
- (1ULL << IB_USER_VERBS_CMD_ALLOC_PD) |
- (1ULL << IB_USER_VERBS_CMD_DEALLOC_PD) |
- (1ULL << IB_USER_VERBS_CMD_REG_MR) |
- (1ULL << IB_USER_VERBS_CMD_DEREG_MR) |
- (1ULL << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
- (1ULL << IB_USER_VERBS_CMD_CREATE_CQ) |
- (1ULL << IB_USER_VERBS_CMD_DESTROY_CQ) |
- (1ULL << IB_USER_VERBS_CMD_CREATE_QP) |
- (1ULL << IB_USER_VERBS_CMD_MODIFY_QP) |
- (1ULL << IB_USER_VERBS_CMD_QUERY_QP) |
- (1ULL << IB_USER_VERBS_CMD_DESTROY_QP);
- ib_dev->uverbs_ex_cmd_mask |=
- (1ULL << IB_USER_VERBS_EX_CMD_MODIFY_CQ);
- /* HCA||device||port */
- ib_dev->modify_device = hns_roce_modify_device;
- ib_dev->query_device = hns_roce_query_device;
- ib_dev->query_port = hns_roce_query_port;
- ib_dev->modify_port = hns_roce_modify_port;
- ib_dev->get_link_layer = hns_roce_get_link_layer;
- ib_dev->get_netdev = hns_roce_get_netdev;
- ib_dev->add_gid = hns_roce_add_gid;
- ib_dev->del_gid = hns_roce_del_gid;
- ib_dev->query_pkey = hns_roce_query_pkey;
- ib_dev->alloc_ucontext = hns_roce_alloc_ucontext;
- ib_dev->dealloc_ucontext = hns_roce_dealloc_ucontext;
- ib_dev->mmap = hns_roce_mmap;
- /* PD */
- ib_dev->alloc_pd = hns_roce_alloc_pd;
- ib_dev->dealloc_pd = hns_roce_dealloc_pd;
- /* AH */
- ib_dev->create_ah = hns_roce_create_ah;
- ib_dev->query_ah = hns_roce_query_ah;
- ib_dev->destroy_ah = hns_roce_destroy_ah;
- /* QP */
- ib_dev->create_qp = hns_roce_create_qp;
- ib_dev->modify_qp = hns_roce_modify_qp;
- ib_dev->query_qp = hr_dev->hw->query_qp;
- ib_dev->destroy_qp = hr_dev->hw->destroy_qp;
- ib_dev->post_send = hr_dev->hw->post_send;
- ib_dev->post_recv = hr_dev->hw->post_recv;
- /* CQ */
- ib_dev->create_cq = hns_roce_ib_create_cq;
- ib_dev->modify_cq = hr_dev->hw->modify_cq;
- ib_dev->destroy_cq = hns_roce_ib_destroy_cq;
- ib_dev->req_notify_cq = hr_dev->hw->req_notify_cq;
- ib_dev->poll_cq = hr_dev->hw->poll_cq;
- /* MR */
- ib_dev->get_dma_mr = hns_roce_get_dma_mr;
- ib_dev->reg_user_mr = hns_roce_reg_user_mr;
- ib_dev->dereg_mr = hns_roce_dereg_mr;
- if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_REREG_MR) {
- ib_dev->rereg_user_mr = hns_roce_rereg_user_mr;
- ib_dev->uverbs_cmd_mask |= (1ULL << IB_USER_VERBS_CMD_REREG_MR);
- }
- /* OTHERS */
- ib_dev->get_port_immutable = hns_roce_port_immutable;
- ib_dev->disassociate_ucontext = hns_roce_disassociate_ucontext;
- ib_dev->driver_id = RDMA_DRIVER_HNS;
- ret = ib_register_device(ib_dev, NULL);
- 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)
- {
- int ret;
- struct device *dev = hr_dev->dev;
- ret = hns_roce_init_hem_table(hr_dev, &hr_dev->mr_table.mtt_table,
- HEM_TYPE_MTT, hr_dev->caps.mtt_entry_sz,
- hr_dev->caps.num_mtt_segs, 1);
- if (ret) {
- dev_err(dev, "Failed to init MTT context memory, aborting.\n");
- return ret;
- }
- if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE)) {
- ret = hns_roce_init_hem_table(hr_dev,
- &hr_dev->mr_table.mtt_cqe_table,
- HEM_TYPE_CQE, hr_dev->caps.mtt_entry_sz,
- hr_dev->caps.num_cqe_segs, 1);
- if (ret) {
- dev_err(dev, "Failed to init MTT CQE context memory, aborting.\n");
- goto err_unmap_cqe;
- }
- }
- 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");
- goto err_unmap_mtt;
- }
- ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.qp_table,
- HEM_TYPE_QPC, hr_dev->caps.qpc_entry_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;
- }
- return 0;
- 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);
- err_unmap_mtt:
- if (hns_roce_check_whether_mhop(hr_dev, HEM_TYPE_CQE))
- hns_roce_cleanup_hem_table(hr_dev,
- &hr_dev->mr_table.mtt_cqe_table);
- err_unmap_cqe:
- hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtt_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)
- {
- int ret;
- struct device *dev = hr_dev->dev;
- 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;
- }
- return 0;
- 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;
- }
- int hns_roce_init(struct hns_roce_dev *hr_dev)
- {
- int ret;
- struct device *dev = hr_dev->dev;
- 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;
- }
- 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_err(dev, "Switch to event-driven cmd failed!\n");
- goto error_failed_use_event;
- }
- }
- 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;
- }
- }
- 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);
- error_failed_use_event:
- 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;
- }
- EXPORT_SYMBOL_GPL(hns_roce_init);
- 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);
- }
- EXPORT_SYMBOL_GPL(hns_roce_exit);
- MODULE_LICENSE("Dual BSD/GPL");
- MODULE_AUTHOR("Wei Hu <xavier.huwei@huawei.com>");
- MODULE_AUTHOR("Nenglong Zhao <zhaonenglong@hisilicon.com>");
- MODULE_AUTHOR("Lijun Ou <oulijun@huawei.com>");
- MODULE_DESCRIPTION("HNS RoCE Driver");
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