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

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

For example:

$ rdma res show cq dev hns_0 cqn 14 -dd -jp -r
[ {
        "ifindex": 4,
        "ifname": "hns_0",
        "data": [ 1,0,0,0,7,0,0,0,0,0,0,0,0,82,6,0,0,82,6,0,0,82,6,0,
		  1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
		  6,0,0,0,0,0,0,0 ]
    } ]

Link: https://lore.kernel.org/r/20220822104455.2311053-4-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 18:44:51 +08:00 committed by Leon Romanovsky
parent eb00b9a08b
commit f2b070f36d
3 changed files with 41 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

@ -1224,6 +1224,7 @@ void hns_roce_handle_device_err(struct hns_roce_dev *hr_dev);
int hns_roce_init(struct hns_roce_dev *hr_dev);
void hns_roce_exit(struct hns_roce_dev *hr_dev);
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);
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

@ -567,6 +567,7 @@ static const struct ib_device_ops hns_roce_dev_xrcd_ops = {
static const struct ib_device_ops hns_roce_dev_restrack_ops = {
.fill_res_cq_entry = hns_roce_fill_res_cq_entry,
.fill_res_cq_entry_raw = hns_roce_fill_res_cq_entry_raw,
};
static int hns_roce_register_device(struct hns_roce_dev *hr_dev)

39
drivers/infiniband/hw/hns/hns_roce_restrack.c
View File

@ -9,6 +9,8 @@
#include "hns_roce_device.h"
#include "hns_roce_hw_v2.h"
#define MAX_ENTRY_NUM 256
int hns_roce_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ib_cq)
{
struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq);
@ -39,3 +41,40 @@ err:
return -EMSGSIZE;
}
int hns_roce_fill_res_cq_entry_raw(struct sk_buff *msg, struct ib_cq *ib_cq)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device);
struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq);
struct hns_roce_v2_cq_context context;
u32 data[MAX_ENTRY_NUM] = {};
int offset = 0;
int ret;
if (!hr_dev->hw->query_cqc)
return -EINVAL;
ret = hr_dev->hw->query_cqc(hr_dev, hr_cq->cqn, &context);
if (ret)
return -EINVAL;
data[offset++] = hr_reg_read(&context, CQC_CQ_ST);
data[offset++] = hr_reg_read(&context, CQC_SHIFT);
data[offset++] = hr_reg_read(&context, CQC_CQE_SIZE);
data[offset++] = hr_reg_read(&context, CQC_CQE_CNT);
data[offset++] = hr_reg_read(&context, CQC_CQ_PRODUCER_IDX);
data[offset++] = hr_reg_read(&context, CQC_CQ_CONSUMER_IDX);
data[offset++] = hr_reg_read(&context, CQC_DB_RECORD_EN);
data[offset++] = hr_reg_read(&context, CQC_ARM_ST);
data[offset++] = hr_reg_read(&context, CQC_CMD_SN);
data[offset++] = hr_reg_read(&context, CQC_CEQN);
data[offset++] = hr_reg_read(&context, CQC_CQ_MAX_CNT);
data[offset++] = hr_reg_read(&context, CQC_CQ_PERIOD);
data[offset++] = hr_reg_read(&context, CQC_CQE_HOP_NUM);
data[offset++] = hr_reg_read(&context, CQC_CQE_BAR_PG_SZ);
data[offset++] = hr_reg_read(&context, CQC_CQE_BUF_PG_SZ);
ret = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, offset * sizeof(u32), data);
return ret;
}