Re: [PATCH v2 0/2] bnx2: Wait for in-flight DMA to complete at probe stage

[Paul Menzel]

On 11/14/16 18:28, David Miller wrote:
> From: Paul Menzel <pmenzel@xxxxxxxxxxxxx>
> Date: Mon, 14 Nov 2016 09:25:47 +0100

> > On 11/13/16 06:01, Baoquan He wrote:
> > > This is v2 post.
> > >
> > > In commit 3e1be7a ("bnx2: Reset device during driver initialization"),
> > > firmware requesting code was moved from open stage to probe stage.
> > > The reason is in kdump kernel hardware iommu need device be reset in
> > > driver probe stage, otherwise those in-flight DMA from 1st kernel
> > > will continue going and look up into the newly created io-page tables.
> > > However bnx2 chip resetting involves firmware requesting issue, that
> > > need be done in open stage.
> > >
> > > Michale Chan suggested we can just wait for the old in-flight DMA to
> > > complete at probe stage, then though without device resetting, we
> > > don't need to worry the old in-flight DMA could continue looking up
> > > the newly created io-page tables.
> > >
> > > v1->v2:
> > >     Michael suggested to wait for the in-flight DMA to complete at probe
> > >     stage. So give up the old method of trying to reset chip at probe
> > >     stage, take the new way accordingly.
> >
> > thank you for posting the updated series. Could you please resend a v3
> > with stable@xxxxxxxxxxxxxxx added [1]?
>
> This is not the proper procedure for networking patches.

Oh, I didn’t know that. Sorry for spreading false information.


Kind regards,

Paul