diff options
| author | Huazhong Tan <tanhuazhong@huawei.com> | 2020-01-11 16:33:50 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-11 14:52:22 -0800 |
| commit | f28368bb4542dbc3c5b6e818211a68cbca6f4d75 (patch) | |
| tree | 6a89f6ed7b314487d0f7a1f03d836da8a235f561 /drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | |
| parent | 8627bdedc435865b015cedeb26e3791dec5b3a41 (diff) | |
net: hns3: refactor the procedure of VF FLR
Currently, the actual work of VF FLR is handled in the reset task,
which is asynchronous. So in some case, if the preparing and
rebuilding are not done, then the VF FLR will trigger some problems,
for example, makes hardware go into chaos.
So this patch separates the process of VF FLR from reset task, and
adds a semaphore to serialize this reset and others.
When FLR's preparing fails, if there has other higher level reset
pending or failing times less than the HCLGE_FLR_RETRY_CNT, this
preparing should be retried, otherwise it will get into a wrong state.
BTW, while the hardware reports misc interrupt during pcie_flr(),
the driver can not receive this interrupt anymore, so disable it
when hclgevf_flr_prepare() return, and re-enable it when enter
hclgevf_flr_done().
Avoid declaring internal function hclgevf_enable_vector(), this patch
also moves its definition forward, and removes unused enum
hnae3_flr_state.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h index 2cbc7dfe2f91..fee8d97f323c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h @@ -253,6 +253,7 @@ struct hclgevf_dev { unsigned long reset_state; /* requested, pending */ struct hclgevf_rst_stats rst_stats; u32 reset_attempts; + struct semaphore reset_sem; /* protect reset process */ u32 fw_version; u16 num_tqps; /* num task queue pairs of this PF */ |