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net: hns3: handle empty unknown interrupt for VF

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[ Upstream commit 2f61353cd2f789a4229b6f5c1c24a40a613357bb ]

Since some interrupt states may be cleared by hardware, the driver
may receive an empty interrupt. Currently, the VF driver directly
disables the vector0 interrupt in this case. As a result, the VF
is unavailable. Therefore, the vector0 interrupt should be enabled
in this case.

Fixes: b90fcc5bd904 ("net: hns3: add reset handling for VF when doing Core/Global/IMP reset")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yufeng Mo 2022-01-25 15:03:12 +08:00 committed by Greg Kroah-Hartman
parent c9c81b393c
commit 699eef4ed9
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
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@ -2382,8 +2382,7 @@ static irqreturn_t hclgevf_misc_irq_handle(int irq, void *data)
break;
}
if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER)
hclgevf_enable_vector(&hdev->misc_vector, true);
hclgevf_enable_vector(&hdev->misc_vector, true);
return IRQ_HANDLED;
}