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

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The MR raw restrack attributes come from the queue context maintained by
the ROCEE.

For example:

$ rdma res show mr dev hns_0 mrn 6 -dd -jp -r
[ {
        "ifindex": 4,
        "ifname": "hns_0",
        "data": [ 1,0,0,0,2,0,0,0,0,3,0,0,0,0,2,0,0,0,0,0,32,0,0,0,2,0,0,0,
		  2,0,0,0,0,0,0,0 ]
    } ]

Link: https://lore.kernel.org/r/20220822104455.2311053-8-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 18:44:55 +08:00 committed by Leon Romanovsky
parent dc9981ef17
commit 3d67e7e236
5 changed files with 66 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -896,6 +896,7 @@ struct hns_roce_hw {
int (*write_srqc)(struct hns_roce_srq *srq, void *mb_buf);
int (*query_cqc)(struct hns_roce_dev *hr_dev, u32 cqn, void *buffer);
int (*query_qpc)(struct hns_roce_dev *hr_dev, u32 qpn, void *buffer);
int (*query_mpt)(struct hns_roce_dev *hr_dev, u32 key, void *buffer);
const struct ib_device_ops *hns_roce_dev_ops;
const struct ib_device_ops *hns_roce_dev_srq_ops;
};
@ -1229,6 +1230,7 @@ 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);
int hns_roce_fill_res_mr_entry_raw(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,

30
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
View File

@ -5802,6 +5802,35 @@ err_mailbox:
return ret;
}
static int hns_roce_v2_query_mpt(struct hns_roce_dev *hr_dev, u32 key,
void *buffer)
{
struct hns_roce_v2_mpt_entry *context;
struct hns_roce_cmd_mailbox *mailbox;
int ret;
mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
context = mailbox->buf;
ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, HNS_ROCE_CMD_QUERY_MPT,
key_to_hw_index(key));
if (ret) {
ibdev_err(&hr_dev->ib_dev,
"failed to process cmd when querying MPT, ret = %d.\n",
ret);
goto err_mailbox;
}
memcpy(buffer, context, sizeof(*context));
err_mailbox:
hns_roce_free_cmd_mailbox(hr_dev, mailbox);
return ret;
}
static void hns_roce_irq_work_handle(struct work_struct *work)
{
struct hns_roce_work *irq_work =
@ -6645,6 +6674,7 @@ static const struct hns_roce_hw hns_roce_hw_v2 = {
.write_srqc = hns_roce_v2_write_srqc,
.query_cqc = hns_roce_v2_query_cqc,
.query_qpc = hns_roce_v2_query_qpc,
.query_mpt = hns_roce_v2_query_mpt,
.hns_roce_dev_ops = &hns_roce_v2_dev_ops,
.hns_roce_dev_srq_ops = &hns_roce_v2_dev_srq_ops,
};

3
drivers/infiniband/hw/hns/hns_roce_hw_v2.h
View File

@ -758,7 +758,8 @@ struct hns_roce_v2_mpt_entry {
#define MPT_INNER_PA_VLD MPT_FIELD_LOC(71, 71)
#define MPT_MW_BIND_QPN MPT_FIELD_LOC(95, 72)
#define MPT_BOUND_LKEY MPT_FIELD_LOC(127, 96)
#define MPT_LEN MPT_FIELD_LOC(191, 128)
#define MPT_LEN_L MPT_FIELD_LOC(159, 128)
#define MPT_LEN_H MPT_FIELD_LOC(191, 160)
#define MPT_LKEY MPT_FIELD_LOC(223, 192)
#define MPT_VA MPT_FIELD_LOC(287, 224)
#define MPT_PBL_SIZE MPT_FIELD_LOC(319, 288)

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

@ -571,6 +571,7 @@ static const struct ib_device_ops hns_roce_dev_restrack_ops = {
.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,
.fill_res_mr_entry_raw = hns_roce_fill_res_mr_entry_raw,
};
static int hns_roce_register_device(struct hns_roce_dev *hr_dev)

31
drivers/infiniband/hw/hns/hns_roce_restrack.c
View File

@ -198,3 +198,34 @@ err:
return -EMSGSIZE;
}
int hns_roce_fill_res_mr_entry_raw(struct sk_buff *msg, struct ib_mr *ib_mr)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ib_mr->device);
struct hns_roce_mr *hr_mr = to_hr_mr(ib_mr);
struct hns_roce_v2_mpt_entry context;
u32 data[MAX_ENTRY_NUM] = {};
int offset = 0;
int ret;
if (!hr_dev->hw->query_mpt)
return -EINVAL;
ret = hr_dev->hw->query_mpt(hr_dev, hr_mr->key, &context);
if (ret)
return -EINVAL;
data[offset++] = hr_reg_read(&context, MPT_ST);
data[offset++] = hr_reg_read(&context, MPT_PD);
data[offset++] = hr_reg_read(&context, MPT_LKEY);
data[offset++] = hr_reg_read(&context, MPT_LEN_L);
data[offset++] = hr_reg_read(&context, MPT_LEN_H);
data[offset++] = hr_reg_read(&context, MPT_PBL_SIZE);
data[offset++] = hr_reg_read(&context, MPT_PBL_HOP_NUM);
data[offset++] = hr_reg_read(&context, MPT_PBL_BA_PG_SZ);
data[offset++] = hr_reg_read(&context, MPT_PBL_BUF_PG_SZ);
ret = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, offset * sizeof(u32), data);
return ret;
}