linux-kernel - Re: [PATCH] net: stmmac: enable tx queue 0 for gmac4 IPs synthesized with multiple TX queues

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Message-Id: <20161129.191113.1572716119083142454.davem@davemloft.net>
Date:   Tue, 29 Nov 2016 19:11:13 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     niklas.cassel@...s.com
Cc:     peppe.cavallaro@...com, alexandre.torgue@...com, niklass@...s.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: stmmac: enable tx queue 0 for gmac4 IPs
 synthesized with multiple TX queues

From: Niklas Cassel <niklas.cassel@...s.com>
Date: Thu, 24 Nov 2016 15:36:33 +0100

> From: Niklas Cassel <niklas.cassel@...s.com>
> 
> The dwmac4 IP can synthesized with 1-8 number of tx queues.
> On an IP synthesized with DWC_EQOS_NUM_TXQ > 1, all txqueues are disabled
> by default. For these IPs, the bitfield TXQEN is R/W.
> 
> Always enable tx queue 0. The write will have no effect on IPs synthesized
> with DWC_EQOS_NUM_TXQ == 1.
> 
> The driver does still not utilize more than one tx queue in the IP.
> 
> Signed-off-by: Niklas Cassel <niklas.cassel@...s.com>

Applied to net-next, thanks.