[Intel-wired-lan] [next-queue] fm10k: Correct MTU for jumbo frames

[Jacob Keller]

Based on hardware testing, the host interface can support up to 15368
bytes on the wire. Subtracting 8 for an internal switch tag and 14 for
the L2 header shows that the MTU should not be allowed to be set above
15346 bytes.

Signed-off-by: Matthew Vick <matthew.vick at intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
---
 drivers/net/ethernet/intel/fm10k/fm10k.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h
index 14440200499b..9e05a36783e5 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k.h
@@ -33,7 +33,7 @@
 #include "fm10k_pf.h"
 #include "fm10k_vf.h"
 
-#define FM10K_MAX_JUMBO_FRAME_SIZE	15358	/* Maximum supported size 15K */
+#define FM10K_MAX_JUMBO_FRAME_SIZE	15346	/* Maximum supported size 15K */
 
 #define MAX_QUEUES	FM10K_MAX_QUEUES_PF
 
-- 
2.5.0.280.g4aaba03