/*
* 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(struct ib_device *device, u8 port_num,
unsigned int index, const union ib_gid *gid,
const struct ib_gid_attr *attr, void **context)
{
struct hns_roce_dev *hr_dev = to_hr_dev(device);
u8 port = 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, index, (union ib_gid *)gid,
attr);
spin_unlock_irqrestore(&hr_dev->iboe.lock, flags);
return ret;
}
static int hns_roce_del_gid(struct ib_device *device, u8 port_num,
unsigned int index, void **context)
{
struct hns_roce_dev *hr_dev = to_hr_dev(device);
union ib_gid zgid = { {0} };
u8 port = 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, index, &zgid, NULL);
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 = 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_sge = max(hr_dev->caps.max_sq_sg, 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_gid(struct ib_device *ib_dev, u8 port_num, int index,
union ib_gid *gid)
{
return 0;
}
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);
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;
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 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 0;
}
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_unregister_device(struct hns_roce_dev *hr_dev)
{
struct hns_roce_ib_iboe *iboe = &hr_dev->iboe;
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);
/* 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->query_gid = hns_roce_query_gid;
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;
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;
}
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;
}
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_irrl;
}
return 0;
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:
hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtt_table);
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);
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;
}
}
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;
}
if (hr_dev->cmd_mod) {
ret = hns_roce_init_eq_table(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:
if (hr_dev->cmd_mod)
hns_roce_cleanup_eq_table(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) {
ret = hr_dev->hw->reset(hr_dev, false);
if (ret)
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);
if (hr_dev->cmd_mod)
hns_roce_cleanup_eq_table(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");
