]> git.baikalelectronics.ru Git - kernel.git/commit
net: hns3: implement the IMP reset processing for PF
authorHuazhong Tan <tanhuazhong@huawei.com>
Fri, 9 Nov 2018 14:07:53 +0000 (22:07 +0800)
committerDavid S. Miller <davem@davemloft.net>
Sat, 10 Nov 2018 00:47:35 +0000 (16:47 -0800)
commit093a970f88ff044d82312c400b05c9d63fc629dc
tree1792d7bdccd399f9194f6e0fc0a9a4e1a7eaf6cf
parentbbcee2a58d22cb417122cba1f267af74efed7421
net: hns3: implement the IMP reset processing for PF

The current code only print the prompt message after receiving
the IMP reset interrupt and does not perform the corresponding driver
reset operation. This patch implements the missing IMP reset handling
in the driver.
1. The driver sets the HCLGE_STATE_CMD_DISABLE to stop sending command
   after receiving the IMP reset interrupt.
2. The driver needs to notify the hardware to reload the IMP firmware.
3. The IMP firmware reloading makes the reset time of hardware longer,
   so it is necessary to extend the driver's waiting time to wait for
   the hardware reset to complete.
4. In hclge_check_event_cause, IMP reset event should have higher
   priority than other events.

Also, after clearing HCLGE_STATE_CMD_DISABLE in the hclge_cmd_init(),
it needs to check whether there is a pending reset, if so, just set
the HCLGE_STATE_CMD_DISABLE back and return.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h