From 5023a6db73196695f4cc2db1a0eb37957ca27772 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 14 Sep 2017 09:31:07 -0700 Subject: netvsc: increase default receive buffer size The default receive buffer size was reduced by recent change to a value which was appropriate for 10G and Windows Server 2016. But the value is too small for full performance with 40G on Azure. Increase the default back to maximum supported by host. Fixes: 8b5327975ae1 ("netvsc: allow controlling send/recv buffer size") Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index c538a4f15f3b..d4902ee5f260 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -49,7 +49,7 @@ #define NETVSC_MIN_TX_SECTIONS 10 #define NETVSC_DEFAULT_TX 192 /* ~1M */ #define NETVSC_MIN_RX_SECTIONS 10 /* ~64K */ -#define NETVSC_DEFAULT_RX 2048 /* ~4M */ +#define NETVSC_DEFAULT_RX 10485 /* Max ~16M */ #define LINKCHANGE_INT (2 * HZ) #define VF_TAKEOVER_INT (HZ / 10) -- cgit