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From: Baoquan He <bhe@redhat.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, michael.chan@broadcom.com,
	linux-kernel@vger.kernel.org, Dept-GELinuxNICDev@cavium.com,
	rasesh.mody@cavium.com, harish.patil@cavium.com,
	frank@undermydesk.org, jsr@dex.edzone.net, pmenzel@molgen.mpg.de,
	jroedel@suse.de, dyoung@redhat.com
Subject: Re: [PATCH v2 2/2] bnx2: Wait for in-flight DMA to complete at probe stage
Date: Sun, 13 Nov 2016 12:54:29 +0800	[thread overview]
Message-ID: <20161113045429.GG15325@x1> (raw)
In-Reply-To: <20161112.234039.1001224346500132925.davem@davemloft.net>

On 11/12/16 at 11:40pm, David Miller wrote:
> From: Baoquan He <bhe@redhat.com>
> Date: Sun, 13 Nov 2016 12:15:24 +0800
> 
> > In-flight DMA from 1st kernel could continue going in kdump kernel.
> > New io-page table has been created before bnx2 does reset at open stage.
> > We have to wait for the in-flight DMA to complete to avoid it look up
> > into the newly created io-page table at probe stage.
> > 
> > Suggested-by: Michael Chan <michael.chan@broadcom.com>
> > Signed-off-by: Baoquan He <bhe@redhat.com>
> > ---
> > 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.
> 
> Patch updates don't work this way.
> 
> When you update a patch that is part of a patch series, you must
> resubmit the entire series anew.

Thanks for telling, David!

Learned it. I am not very sure if this is what Michael is suggesting.
Will resubmit the entire patch series.

Thanks
Baoquan

  reply	other threads:[~2016-11-13  4:54 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-11 13:46 [PATCH 0/2] bnx2: Hard reset bnx2 chip at probe stage Baoquan He
2016-11-11 13:46 ` [PATCH 1/2] Revert "bnx2: Reset device during driver initialization" Baoquan He
2016-11-11 13:51   ` Paul Menzel
2016-11-11 13:46 ` [PATCH 2/2] bnx2: Hard reset bnx2 chip at probe stage Baoquan He
2016-11-13  4:15   ` [PATCH v2 2/2] bnx2: Wait for in-flight DMA to complete " Baoquan He
2016-11-13  4:40     ` David Miller
2016-11-13  4:54       ` Baoquan He [this message]
2016-11-11 14:02 ` [PATCH 0/2] bnx2: Hard reset bnx2 chip " Baoquan He
2016-11-11 17:37   ` Michael Chan
2016-11-13  4:10     ` Baoquan He
  -- strict thread matches above, loose matches on Subject: below --
2016-11-13  5:01 [PATCH v2 0/2] bnx2: Wait for in-flight DMA to complete " Baoquan He
2016-11-13  5:01 ` [PATCH v2 2/2] " Baoquan He
2016-11-13 19:02   ` Michael Chan

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