Fri, Sep 27, 2019 at 09:40:47AM CEST, linyunsheng@huawei.com wrote:

Hi, Jiri & Alex

   It seems that a region' snapshot is only created through the
driver when some error is detected, for example:
mlx4_crdump_collect_fw_health() -> devlink_region_snapshot_create()

   We want to trigger a region' snapshot creation through devlink
cmd, maybe by adding the "devlink region triger", because we want
to check some hardware register/state when the driver or the hardware
does not detect the error sometimes.

Does about "devlink region triger" make sense?

If yes, is there plan to implement it? or any suggestion to implement
it?

Actually, the plan is co convert mlx4 to "devlink health" api. Mlx5
already uses that.

You should look into "devlink health".