linux-kernel - Re: [PATCH v9] tilegx network driver: initial support

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Date:	Wed, 06 Jun 2012 19:31:40 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Chris Metcalf <cmetcalf@...era.com>
Cc:	bhutchings@...arflare.com, arnd@...db.de,
	David Miller <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v9] tilegx network driver: initial support

On Mon, 2012-06-04 at 16:12 -0400, Chris Metcalf wrote:
> This change adds support for the tilegx network driver based on the
> GXIO IORPC support in the tilegx software stack, using the on-chip
> mPIPE packet processing engine.

> +static void tile_net_setup(struct net_device *dev)
> +{
> +	ether_setup(dev);
> +	dev->netdev_ops = &tile_net_ops;
> +	dev->watchdog_timeo = TILE_NET_TIMEOUT;
> +	dev->features |= NETIF_F_LLTX;
> +	dev->features |= NETIF_F_HW_CSUM;
> +	dev->features |= NETIF_F_SG;
> +	dev->features |= NETIF_F_TSO;
> +	dev->tx_queue_len = 0;
> +	dev->mtu = 1500;
> +}

Why is tx_queue_len set to 0 ?


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