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RDMA/hns: Support MR's restrack ops for hns driver

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The MR restrack attributes come from the queue information maintained by
the driver.

For example:

$ rdma res show mr dev hns_0 mrn 6 -dd -jp
[ {
        "ifindex": 4,
        "ifname": "hns_0",
        "mrn": 6,
        "rkey": "300",
        "lkey": "300",
        "mrlen": 131072,
        "pdn": 8,
        "pid": 1524,
        "comm": "ib_send_bw"
    },
    "drv_pbl_hop_num": 2,
    "drv_ba_pg_shift": 14,
    "drv_buf_pg_shift": 12
}

Link: https://lore.kernel.org/r/20220822104455.2311053-7-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Wenpeng Liang 2022-08-22 18:44:54 +08:00 committed by Leon Romanovsky
parent 3e89d78b21
commit dc9981ef17
3 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -1228,6 +1228,7 @@ int hns_roce_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ib_cq);
int hns_roce_fill_res_cq_entry_raw(struct sk_buff *msg, struct ib_cq *ib_cq);
int hns_roce_fill_res_qp_entry(struct sk_buff *msg, struct ib_qp *ib_qp);
int hns_roce_fill_res_qp_entry_raw(struct sk_buff *msg, struct ib_qp *ib_qp);
int hns_roce_fill_res_mr_entry(struct sk_buff *msg, struct ib_mr *ib_mr);
struct hns_user_mmap_entry *
hns_roce_user_mmap_entry_insert(struct ib_ucontext *ucontext, u64 address,
size_t length,

1
drivers/infiniband/hw/hns/hns_roce_main.c
View File

@ -570,6 +570,7 @@ static const struct ib_device_ops hns_roce_dev_restrack_ops = {
.fill_res_cq_entry_raw = hns_roce_fill_res_cq_entry_raw,
.fill_res_qp_entry = hns_roce_fill_res_qp_entry,
.fill_res_qp_entry_raw = hns_roce_fill_res_qp_entry_raw,
.fill_res_mr_entry = hns_roce_fill_res_mr_entry,
};
static int hns_roce_register_device(struct hns_roce_dev *hr_dev)

30
drivers/infiniband/hw/hns/hns_roce_restrack.c
View File

@ -168,3 +168,33 @@ int hns_roce_fill_res_qp_entry_raw(struct sk_buff *msg, struct ib_qp *ib_qp)
return ret;
}
int hns_roce_fill_res_mr_entry(struct sk_buff *msg, struct ib_mr *ib_mr)
{
struct hns_roce_mr *hr_mr = to_hr_mr(ib_mr);
struct nlattr *table_attr;
table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
if (!table_attr)
return -EMSGSIZE;
if (rdma_nl_put_driver_u32_hex(msg, "pbl_hop_num", hr_mr->pbl_hop_num))
goto err;
if (rdma_nl_put_driver_u32_hex(msg, "ba_pg_shift",
hr_mr->pbl_mtr.hem_cfg.ba_pg_shift))
goto err;
if (rdma_nl_put_driver_u32_hex(msg, "buf_pg_shift",
hr_mr->pbl_mtr.hem_cfg.buf_pg_shift))
goto err;
nla_nest_end(msg, table_attr);
return 0;
err:
nla_nest_cancel(msg, table_attr);
return -EMSGSIZE;
}