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| author |   Wenpeng Liang <liangwenpeng@huawei.com> | 2022-08-22 18:44:55 +0800 |
|---|---|---|
| committer |   Leon Romanovsky <leonro@nvidia.com> | 2022-08-24 08:47:18 +0300 |
| commit | 3d67e7e236adb4965ff9834bb7125686ecf9654a (patch) | |
| tree | f678afbf17d58fa49b54f393c9e8a73fe3a6e006 /drivers/infiniband/hw/hns/hns_roce_hw_v2.c | |
| parent | RDMA/hns: Support MR's restrack ops for hns driver (diff) | |
| download | linux-dev-3d67e7e236adb4965ff9834bb7125686ecf9654a.tar.xz linux-dev-3d67e7e236adb4965ff9834bb7125686ecf9654a.zip | |
RDMA/hns: Support MR's restrack raw ops for hns driver
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>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 319de9a4d2ef..fa78b141dff2 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -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, }; |