From 9891417de8a816de60faea8a2ff7a04c4b3cf3a1 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 3 Jun 2015 11:29:38 -0400 Subject: [PATCH] NTB: Increase transport MTU to 64k from 16k Benchmarking showed a significant performance increase with the MTU size to 64k instead of 16k. Change the driver default to 64k. Signed-off-by: Dave Jiang Signed-off-by: Jon Mason --- drivers/ntb/ntb_transport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index e07b056af3be..1551493197b4 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -76,7 +76,7 @@ static unsigned long max_mw_size; module_param(max_mw_size, ulong, 0644); MODULE_PARM_DESC(max_mw_size, "Limit size of large memory windows"); -static unsigned int transport_mtu = 0x401E; +static unsigned int transport_mtu = 0x10000; module_param(transport_mtu, uint, 0644); MODULE_PARM_DESC(transport_mtu, "Maximum size of NTB transport packets");