Commit dc9981ef authored by Wenpeng Liang's avatar Wenpeng Liang Committed by Leon Romanovsky
Browse files

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

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: default avatarWenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 3e89d78b

drivers/infiniband/hw/hns/hns_roce_device.h

+1 −0
Original line number Diff line number Diff line
@@ -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,

drivers/infiniband/hw/hns/hns_roce_main.c

+1 −0
Original line number Diff line number Diff line
@@ -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)

drivers/infiniband/hw/hns/hns_roce_restrack.c

+30 −0
Original line number Diff line number Diff line
@@ -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;

}