cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

hns_roce_hw_v2_dfx.c (814B)

      1// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
      2// Copyright (c) 2019 Hisilicon Limited.
      3
      4#include "hnae3.h"
      5#include "hns_roce_device.h"
      6#include "hns_roce_cmd.h"
      7#include "hns_roce_hw_v2.h"
      8
      9int hns_roce_v2_query_cqc_info(struct hns_roce_dev *hr_dev, u32 cqn,
     10			       int *buffer)
     11{
     12	struct hns_roce_v2_cq_context *cq_context;
     13	struct hns_roce_cmd_mailbox *mailbox;
     14	int ret;
     15
     16	mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
     17	if (IS_ERR(mailbox))
     18		return PTR_ERR(mailbox);
     19
     20	cq_context = mailbox->buf;
     21	ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, HNS_ROCE_CMD_QUERY_CQC,
     22				cqn);
     23	if (ret) {
     24		dev_err(hr_dev->dev, "QUERY cqc cmd process error\n");
     25		goto err_mailbox;
     26	}
     27
     28	memcpy(buffer, cq_context, sizeof(*cq_context));
     29
     30err_mailbox:
     31	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
     32
     33	return ret;
     34}