mirror of https://gitee.com/openkylin/linux.git
36 lines
849 B
C
36 lines
849 B
C
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// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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// Copyright (c) 2019 Hisilicon Limited.
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#include "hnae3.h"
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#include "hns_roce_device.h"
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#include "hns_roce_cmd.h"
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#include "hns_roce_hw_v2.h"
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int hns_roce_v2_query_cqc_info(struct hns_roce_dev *hr_dev, u32 cqn,
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int *buffer)
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{
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struct hns_roce_v2_cq_context *cq_context;
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struct hns_roce_cmd_mailbox *mailbox;
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int ret;
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mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
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if (IS_ERR(mailbox))
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return PTR_ERR(mailbox);
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cq_context = mailbox->buf;
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ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, cqn, 0,
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HNS_ROCE_CMD_QUERY_CQC,
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HNS_ROCE_CMD_TIMEOUT_MSECS);
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if (ret) {
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dev_err(hr_dev->dev, "QUERY cqc cmd process error\n");
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goto err_mailbox;
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}
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memcpy(buffer, cq_context, sizeof(*cq_context));
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err_mailbox:
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hns_roce_free_cmd_mailbox(hr_dev, mailbox);
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return ret;
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}
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