Re: [PATCH for-next] RDMA/hns: Add support function clear when removing module

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On Fri, Apr 19, 2019 at 03:46:32PM +0800, oulijun wrote:
> ??? 2019/4/16 20:16, Leon Romanovsky ??????:
> > On Sat, Apr 13, 2019 at 07:29:01PM +0800, Lijun Ou wrote:
> >> To avoid resource unreleased while ULP aborted abnormally,
> >> the hardware adds the capability of restoring the resource
> >> while removing module, this patch enables this capability.
> > Can anyone help me to understand what does it mean?
> > How can ULP "abort" without releasing resources?
> >
> > Thanks
>
> Maybe the commit description is not correct enough.
>
> The entire PATCH is to solve the following scenarios. When a  function is abnormal, the hardware
>
> need to release the relatived hardware reource and the entire release process is the same as the flr process.
>
> It uses the firmware to reslove.  The hw design adds a firmware cmd to clear the hardware state and judge
>
> the resource of hardware have freed.
>
> As a result, the driver need to implement this cmd.

You explained what you are doing, but not why are you doing.

Thanks

>
> Thanks
>
> Lijun Ou
>
>



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