diff options
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_hw_v2_dfx.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2_dfx.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2_dfx.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2_dfx.c new file mode 100644 index 000000000000..5a97b5a0b7be --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2_dfx.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +// Copyright (c) 2019 Hisilicon Limited. + +#include "hnae3.h" +#include "hns_roce_device.h" +#include "hns_roce_cmd.h" +#include "hns_roce_hw_v2.h" + +int hns_roce_v2_query_cqc_info(struct hns_roce_dev *hr_dev, u32 cqn, + int *buffer) +{ + struct hns_roce_v2_cq_context *cq_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); + + cq_context = mailbox->buf; + ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, cqn, 0, + HNS_ROCE_CMD_QUERY_CQC, + HNS_ROCE_CMD_TIMEOUT_MSECS); + if (ret) { + dev_err(hr_dev->dev, "QUERY cqc cmd process error\n"); + goto err_mailbox; + } + + memcpy(buffer, cq_context, sizeof(*cq_context)); + +err_mailbox: + hns_roce_free_cmd_mailbox(hr_dev, mailbox); + + return ret; +} |