netdev - [PATCH 30/39]: netdev: Add netdev->select

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Message-Id: <20080703.000510.80165060.davem@davemloft.net>
Date:	Thu, 03 Jul 2008 00:05:10 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	netdev@...r.kernel.org
CC:	vinay@...ux.vnet.ibm.com, krkumar2@...ibm.com, mchan@...adcom.com,
	Matheos.Worku@....COM, linux-wireless@...r.kernel.org
Subject: [PATCH 30/39]: netdev: Add netdev->select_queue() method.


Devices or device layers can set this to control the
queue selection performed by dev_pick_tx().

Signed-off-by: David S. Miller <davem@...emloft.net>
---
 include/linux/netdevice.h |    3 +++
 net/core/dev.c            |    3 +++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f119532..6ba9cd0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -724,6 +724,9 @@ struct net_device
 	void                    (*poll_controller)(struct net_device *dev);
 #endif
 
+	u16			(*select_queue)(struct net_device *dev,
+						struct sk_buff *skb);
+
 #ifdef CONFIG_NET_NS
 	/* Network namespace this network device is inside */
 	struct net		*nd_net;
diff --git a/net/core/dev.c b/net/core/dev.c
index 8ccf016..21f3cc5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1671,6 +1671,9 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev,
 {
 	u16 queue_index = 0;
 
+	if (dev->select_queue)
+		queue_index = dev->select_queue(dev, skb);
+
 	skb_set_queue_mapping(skb, queue_index);
 	return netdev_get_tx_queue(dev, queue_index);
 }
-- 
1.5.6

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