From 20f43d5792836369c8e7eb16d87ef10ef8dc9aec Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Thu, 31 Aug 2017 00:57:35 +0000
Subject: [PATCH] firmware: fix ethmac MTU value.

1500 is the maximum payload size, not maximum frame size.
---
 artiq/firmware/runtime/ethmac.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/firmware/runtime/ethmac.rs b/artiq/firmware/runtime/ethmac.rs
index 23047bab0..68db8cbde 100644
--- a/artiq/firmware/runtime/ethmac.rs
+++ b/artiq/firmware/runtime/ethmac.rs
@@ -25,7 +25,7 @@ impl Device for EthernetDevice {
 
     fn limits(&self) -> DeviceLimits {
         let mut limits = DeviceLimits::default();
-        limits.max_transmission_unit = 1500;
+        limits.max_transmission_unit = 1514;
         limits.max_burst_size = Some(RX_BUFFERS.len());
         limits
     }