Re: [PATCH v3 0/1] net/macb: add TX multiqueue support for gem
From: David Miller
Date: Fri Dec 12 2014 - 15:18:09 EST
From: Cyrille Pitchen <cyrille.pitchen@xxxxxxxxx>
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.
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