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

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Message-ID: <CACKFLinJrbLjEnQfNN+tBn9d+eSSTpx=A4_QUJp1PuMBwYOPqw@mail.gmail.com>
Date:   Sun, 13 Nov 2016 11:02:01 -0800
From:   Michael Chan <michael.chan@...adcom.com>
To:     Baoquan He <bhe@...hat.com>
Cc:     Netdev <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        open list <linux-kernel@...r.kernel.org>,
        Dept-GELinuxNICDev@...ium.com, rasesh.mody@...ium.com,
        harish.patil@...ium.com, frank@...ermydesk.org, jsr@....edzone.net,
        pmenzel@...gen.mpg.de, jroedel@...e.de, dyoung@...hat.com
Subject: Re: [PATCH v2 2/2] bnx2: Wait for in-flight DMA to complete at probe stage

On Sat, Nov 12, 2016 at 9:01 PM, Baoquan He <bhe@...hat.com> wrote:
> 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@...adcom.com>
> Signed-off-by: Baoquan He <bhe@...hat.com>

Acked-by: Michael Chan <michael.chan@...adcom.com>