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SubjectRe: [PATCH V2 net-next 11/11] net: hns3: add debugfs support for interrupt coalesce
On Wed, 11 Nov 2020 11:16:37 +0800 tanhuazhong wrote:
> On 2020/11/11 9:28, Jakub Kicinski wrote:
> > On Mon, 9 Nov 2020 11:22:39 +0800 Huazhong Tan wrote:
> >> Since user may need to check the current configuration of the
> >> interrupt coalesce, so add debugfs support for query this info,
> >> which includes DIM profile, coalesce configuration of both software
> >> and hardware.
> >>
> >> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
> >
> > Please create a file per vector so that users can just read it instead
> > of dumping the info into the logs.
> >
>
> This patch should be removed from this series right now. Since this new
> read method needs some adaptations and verifications, and there maybe
> another better ways to dump this info.
>
> > Even better we should put as much of this information as possible into
> > the ethtool API. dim state is hardly hardware-specific.
> >
>
> Should the ethtool API used to dump the hardware info? Could you provide
> some hints to do it?

Not necessarily hardware info but if there is a use case for inspecting
DIM state we can extend

coalesce_fill_reply() in net/ethtool/coalesce.c

to report it.

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