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net: hns3: fix a bug caused by udelay

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udelay() in driver may always occupancy processor. If there is only
one cpu in system, the VF driver may initialize fail when insmod
PF and VF driver in the same system. This patch use msleep() to free
cpu when VF wait PF message.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Peng Li 2018-12-20 11:52:00 +08:00 committed by David S. Miller
parent a298797532
commit 1b7d7b0581
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
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@ -26,7 +26,7 @@ static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1,
u8 *resp_data, u16 resp_len)
{
#define HCLGEVF_MAX_TRY_TIMES 500
#define HCLGEVF_SLEEP_USCOEND 1000
#define HCLGEVF_SLEEP_USECOND 1000
struct hclgevf_mbx_resp_status *mbx_resp;
u16 r_code0, r_code1;
int i = 0;
@ -43,7 +43,7 @@ static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1,
if (test_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state))
return -EIO;
udelay(HCLGEVF_SLEEP_USCOEND);
usleep_range(HCLGEVF_SLEEP_USECOND, HCLGEVF_SLEEP_USECOND * 2);
i++;
}