[PATCH] vmxnet3: Use correct minimum MTU value

From: Mohammed Gamal
Date: Tue Oct 17 2017 - 10:34:13 EST


Currently the vmxnet3 driver has a minimum MTU value of 60. Which
goes against the RFC791 spec which specifies it at 68.

Setting MTU to values between 60 <= MTU <= 67 causes the network
interface to lose its IP, and it fails to restart.

This sets the minimum value to ETH_MIN_MTU (68) which is compatible
with is according to spec.

Reported-by: Bo Yang <boyang@xxxxxxxxxx>
Signed-off-by: Mohammed Gamal <mgamal@xxxxxxxxxx>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index c3a3164..4ad905a 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -749,7 +749,7 @@ struct Vmxnet3_DriverShared {
((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)

#define VMXNET3_MAX_MTU 9000
-#define VMXNET3_MIN_MTU 60
+#define VMXNET3_MIN_MTU ETH_MIN_MTU

#define VMXNET3_LINK_UP (10000 << 16 | 1) /* 10 Gbps, up */
#define VMXNET3_LINK_DOWN 0
--
1.8.3.1