netdev - [PATCH 1/4] [RFC] netdevice: Introduce per-txq xmit

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Message-Id: <20110504140309.14817.61411.sendpatchset@krkumar2.in.ibm.com>
Date:	Wed, 04 May 2011 19:33:09 +0530
From:	Krishna Kumar <krkumar2@...ibm.com>
To:	davem@...emloft.net
Cc:	eric.dumazet@...il.com, kvm@...r.kernel.org, mst@...hat.com,
	netdev@...r.kernel.org, rusty@...tcorp.com.au,
	Krishna Kumar <krkumar2@...ibm.com>
Subject: [PATCH 1/4] [RFC] netdevice: Introduce per-txq xmit_restart

Add a per-txq field that can (optionally) be set by participating
drivers to indicate when to restart tx.

Signed-off-by: Krishna Kumar <krkumar2@...ibm.com>
---
 include/linux/netdevice.h |    1 +
 1 file changed, 1 insertion(+)

diff -ruNp org/include/linux/netdevice.h new/include/linux/netdevice.h
--- org/include/linux/netdevice.h	2011-05-04 18:57:06.000000000 +0530
+++ new/include/linux/netdevice.h	2011-05-04 18:57:09.000000000 +0530
@@ -571,6 +571,7 @@ struct netdev_queue {
 	 * please use this field instead of dev->trans_start
 	 */
 	unsigned long		trans_start;
+	unsigned long		xmit_restart_jiffies; /* jiffies to restart */
 } ____cacheline_aligned_in_smp;
 
 static inline int netdev_queue_numa_node_read(const struct netdev_queue *q)
--
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