netdev - Re: [PATCH v3 0/1] net/macb: add TX multiqueue support for gem

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Date:	Fri, 12 Dec 2014 15:18:01 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	cyrille.pitchen@...el.com
Cc:	nicolas.ferre@...el.com, linux-arm-kernel@...ts.infradead.org,
	netdev@...r.kernel.org, soren.brinkmann@...inx.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/1] net/macb: add TX multiqueue support for gem

From: Cyrille Pitchen <cyrille.pitchen@...el.com>
Date: Fri, 12 Dec 2014 13:26:43 +0100

> At the first look this patch may look quite big but it cannot be splitted.
> Each queue has its own dedicated IRQ, which should be handled.
> Also the Transmit Base Queue Pointer register of each available queue must be
> initialized before starting the transmission, otherwise the transmission will be
> halted immediately as HRESP errors are likely to occur.
> In addition, some fields had to be moved from struct macb into struct macb_queue
> so a common code could manage the queues.
> 
> This patch was applied to net-next and tested on a sama5d36ek board, which embeds
> both macb and gem IPs, to check the backward compatibility.
> 
> Also it was tested on a sama5dx FPGA platform with a gem designed to use 3 queues.
> Then we used the tc program to set a queue discipline policy as describe in the
> Documentation/networking/multiqueue.txt: we successfully used each queue.

Applied, thanks.
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