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authorWolfgang Grandegger <wg@grandegger.com>2009-10-09 00:17:11 +0200
committerDavid S. Miller <davem@davemloft.net>2009-10-13 12:44:04 +0200
commita6e4bc5304033e434fabccabb230b8e9ff55d76f (patch)
treea1ddf8a6648a5f60e8196c34ad20f9e107f40e8e /drivers/net/can/sja1000/sja1000.c
parentnet: Add netdev_alloc_skb_ip_align() helper (diff)
downloadlinux-a6e4bc5304033e434fabccabb230b8e9ff55d76f.tar.xz
linux-a6e4bc5304033e434fabccabb230b8e9ff55d76f.zip
can: make the number of echo skb's configurable
This patch allows the CAN controller driver to define the number of echo skb's used for the local loopback (echo), as suggested by Kurt Van Dijck, with the function: struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max); The CAN drivers have been adapted accordingly. For the ems_usb driver, as suggested by Sebastian Haas, the number of echo skb's has been increased to 10, which improves the transmission performance a lot. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can/sja1000/sja1000.c')
-rw-r--r--drivers/net/can/sja1000/sja1000.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 16d2ecd2a3b7..96d8be4253f8 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -565,7 +565,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv)
struct net_device *dev;
struct sja1000_priv *priv;
- dev = alloc_candev(sizeof(struct sja1000_priv) + sizeof_priv);
+ dev = alloc_candev(sizeof(struct sja1000_priv) + sizeof_priv,
+ SJA1000_ECHO_SKB_MAX);
if (!dev)
return NULL;