netdev - Re: [PATCH net RFT] bnxt_en: Fix TX timeout during netpoll.

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Message-ID: <CACKFLik_gNs2MOfKSFARMxqKRJ2UCJ6KgbJ+wSgu6wRvDN3saQ@mail.gmail.com>
Date:   Tue, 25 Sep 2018 16:11:27 -0700
From:   Michael Chan <michael.chan@...adcom.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Song Liu <songliubraving@...com>,
        Eric Dumazet <edumazet@...gle.com>,
        David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net RFT] bnxt_en: Fix TX timeout during netpoll.

On Tue, Sep 25, 2018 at 3:15 PM Eric Dumazet <eric.dumazet@...il.com> wrote:

>
> It seems bnx2 should have a similar issue ?
>

Yes, I think so.  The MSIX mode in bnx2 is also auto-masking, meaning
that MSIX will only assert once after it is ARMed.  If we return from
->poll() when budget of 0 is reached without ARMing, we may not get
another MSIX.

I can work on a similar patch but I don't have bnx2 cards to test with
anymore.  Thanks.