Patch "[PATCH 019/135] fm10k: Correct MTU for jumbo frames" has been added to the 4.4-stable tree

Patch "[PATCH 019/135] fm10k: Correct MTU for jumbo frames" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    [PATCH 019/135] fm10k: Correct MTU for jumbo frames

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     0019-fm10k-Correct-MTU-for-jumbo-frames.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From b518807ec09948b82cdc9ac806f6ec7c4b8704ff Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Tue, 25 Aug 2015 13:49:11 -0700
Subject: [PATCH 019/135] fm10k: Correct MTU for jumbo frames

[ Upstream commit 8c7ee6d2cacc7794a91875ef5fd8284b4a900d8c ]

Based on hardware testing, the host interface supports up to 15368 bytes
as the maximum frame size. To determine the correct MTU, we subtract 8
for the internal switch tag, 14 for the L2 header, and 4 for the
appended FCS header, resulting in 15342 bytes of payload for our maximum
MTU on jumbo frames.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/fm10k/fm10k.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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	15342	/* Maximum supported size 15K */
 
 #define MAX_QUEUES	FM10K_MAX_QUEUES_PF
 


Patches currently in stable-queue which might be from jacob.e.keller@intel.com are

queue-4.4/0022-fm10k-always-check-init_hw-for-errors.patch
queue-4.4/0021-fm10k-reset-max_queues-on-init_hw_vf-failure.patch
queue-4.4/0023-fm10k-reinitialize-queuing-scheme-after-calling-init.patch
queue-4.4/0018-fm10k-do-not-assume-VF-always-has-1-queue.patch
queue-4.4/0019-fm10k-Correct-MTU-for-jumbo-frames.patch