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authorBen Hutchings <bhutchings@solarflare.com>2010-09-27 08:24:49 +0000
committerDavid S. Miller <davem@davemloft.net>2010-09-27 22:09:50 -0700
commit3171d026291d08c2a4cfe06302ce308b09605c4b (patch)
treec9ff3f6253a52d63b041b13face40299573990ff /include/linux/netdevice.h
parent62fe0b40abb3484413800edaef9b087a20059acf (diff)
net: Add netif_copy_real_num_queues() for use by virtual net drivers
This sets the active numbers of queues on a net device to match another. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b15732e22ee..c2bec990bd1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1699,6 +1699,18 @@ static inline int netif_set_real_num_rx_queues(struct net_device *dev,
}
#endif
+static inline int netif_copy_real_num_queues(struct net_device *to_dev,
+ const struct net_device *from_dev)
+{
+ netif_set_real_num_tx_queues(to_dev, from_dev->real_num_tx_queues);
+#ifdef CONFIG_RPS
+ return netif_set_real_num_rx_queues(to_dev,
+ from_dev->real_num_rx_queues);
+#else
+ return 0;
+#endif
+}
+
/* Use this variant when it is known for sure that it
* is executing from hardware interrupt context or with hardware interrupts
* disabled.