net: hns3: add handshake with VF for PF reset

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Before PF asserting function reset, it should make sure
that all its VFs have been ready, otherwise, it will cause
some hardware errors.

So this patch adds function hclge_func_reset_sync_vf() to
synchronize VF before asserting PF function reset. For new
firmware which supports command HCLGE_OPC_QUERY_VF_RST_RDY,
we will try to query VFs' ready status within 30 seconds.
And keep the old implementation for compatible with firmware
which does not support this command.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Huazhong Tan 2019-08-09 10:31:17 +08:00 • committed by David S. Miller

parent 615466ce41

commit 427a7bff66

2 changed files with 55 additions and 8 deletions

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7

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h

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56

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

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