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net: hns3: add interrupts re-initialization while doing VF FLR

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[ Upstream commit 09e6b30eeb254f1818a008cace3547159e908dfd ]

Currently keep alive message between PF and VF may be lost and the VF is
unalive in PF. So the VF will not do reset during PF FLR reset process.
This would make the allocated interrupt resources of VF invalid and VF
would't receive or respond to PF any more.

So this patch adds VF interrupts re-initialization during VF FLR for VF
recovery in above cases.

Fixes: 862d969a3a ("net: hns3: do VF's pci re-initialization while PF doing FLR")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jie Wang 2022-12-22 14:43:41 +08:00 committed by Greg Kroah-Hartman
parent f9c551d874
commit b6a0623f75
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
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@ -2592,7 +2592,8 @@ static int hclgevf_pci_reset(struct hclgevf_dev *hdev)
struct pci_dev *pdev = hdev->pdev;
int ret = 0;
if (hdev->reset_type == HNAE3_VF_FULL_RESET &&
if ((hdev->reset_type == HNAE3_VF_FULL_RESET ||
hdev->reset_type == HNAE3_FLR_RESET) &&
test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) {
hclgevf_misc_irq_uninit(hdev);
hclgevf_uninit_msi(hdev);