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authorYuval Mintz <yuvalmin@broadcom.com>2012-07-01 03:18:50 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-05 03:06:44 -0700
commit16917b87a23b429226527f393270047069d665e9 (patch)
treed233f41b31e29688fab779e6885ede9b83f4867b /include/linux/netdevice.h
parentbf5e53e3717ed28be69d0663c65962d1731e7ee4 (diff)
net-next: Add netif_get_num_default_rss_queues
Most multi-queue networking driver consider the number of online cpus when configuring RSS queues. This patch adds a wrapper to the number of cpus, setting an upper limit on the number of cpus a driver should consider (by default) when allocating resources for his queues. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2c2ecea28a1b..ab0251d541ab 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2119,6 +2119,9 @@ static inline int netif_copy_real_num_queues(struct net_device *to_dev,
#endif
}
+#define DEFAULT_MAX_NUM_RSS_QUEUES (8)
+extern int netif_get_num_default_rss_queues(void);
+
/* Use this variant when it is known for sure that it
* is executing from hardware interrupt context or with hardware interrupts
* disabled.