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Subject[PATCH] net: can: Increase tx queue length
Date
While stress testing the CAN interface on xilinx axi can
in loopback mode getting message "write: no buffer space available"
Increasing device tx queue length resolved the above mentioned issue.

Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
---
--> Network devices default tx_queue_len is 1000 but for socket
can device it is 10 any reason for it??

drivers/net/can/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index c05e4d5..32bd5be 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -642,7 +642,7 @@ static void can_setup(struct net_device *dev)
dev->mtu = CAN_MTU;
dev->hard_header_len = 0;
dev->addr_len = 0;
- dev->tx_queue_len = 10;
+ dev->tx_queue_len = 500;

/* New-style flags. */
dev->flags = IFF_NOARP;
--
2.7.4
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