netdev - Re: [PATCH 1/2] ixgbe: change ndo_xdp_xmit return code on xmit errors

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Date:   Thu, 17 Aug 2017 11:32:42 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     Jesper Dangaard Brouer <brouer@...hat.com>, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] ixgbe: change ndo_xdp_xmit return code on xmit errors

On 08/17/2017 09:22 AM, Jesper Dangaard Brouer wrote:
> Use errno -ENOSPC ("No space left on device") when the XDP xmit
> have no space left on the TX ring buffer, instead of -ENOMEM.
> 
> Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com>
> ---
>

Seems like an improvement to me. You could also potentially
distinguish between DMA mapping errors and descriptor overrun
but likely not needed.

Acked-by: John Fastabend <john.fastabend@...il.com>