linux-kernel - Re: [PATCH v4] usb: dwc3: core: Enable AutoRetry feature in the controller

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Message-ID: <87h8klyv94.fsf@linux.intel.com>
Date:   Fri, 27 Jul 2018 10:48:23 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>,
        gregkh@...uxfoundation.org
Cc:     v.anuragkumar@...il.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>
Subject: Re: [PATCH v4] usb: dwc3: core: Enable AutoRetry feature in the controller

Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com> writes:

> By default when core sees any transaction error(CRC or overflow)
> it replies with terminating retry ACK (Retry=1 and Nump == 0).
> Enabling this Auto Retry feature in controller, on seeing any
> transaction errors makes the core to send a non-terminating ACK
> transaction packet (that is, ACK TP with Retry=1 and Nump != 0).
> Doing so will give controller a chance to recover from the error
> condition.
>
> Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@...inx.com>

now applied. I've slightly modified commit log to make it read a bit
better.

-- 
balbi

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