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@xxxxxxxxxx> --- --> 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
