From: Shaozhengchao shaozhengchao@huawei.com

driver inclusion category:bugfix bugzilla:4472 CVE:NA

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slove the problem that VF may be disconnected when vm reboot and receive lots of broadcast packets. When vm is rebooting, VF receives lots of broadcast packects and VF may be disconnected. VF receives broadcast packect and VF driver will clear INTR_ON flag in setting msix process. Then VF driver will not enable interrupt if INTR_ON flag is set. As a result, VF will not process any hadware interrpt. In order to solve this problem, VF driver should be enable the interrpt first and then set msix state.

Signed-off-by: Shaozhengchao shaozhengchao@huawei.com Reviewed-by: Luoshaokai luoshaokai@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/net/ethernet/huawei/hinic/hinic_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c index 9b53a6f..b6da9fe 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_main.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c @@ -759,6 +759,8 @@ static int hinic_qps_irq_init(struct hinic_nic_dev *nic_dev) goto req_tx_irq_err; }

+ set_bit(HINIC_INTR_ON, &irq_cfg->intr_flag); + err = hinic_request_irq(irq_cfg, q_id); if (err) { nicif_err(nic_dev, drv, nic_dev->netdev, "Failed to request Rx irq\n"); @@ -768,7 +770,6 @@ static int hinic_qps_irq_init(struct hinic_nic_dev *nic_dev) hinic_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx, HINIC_MSIX_ENABLE); - set_bit(HINIC_INTR_ON, &irq_cfg->intr_flag); }

INIT_DELAYED_WORK(&nic_dev->moderation_task,