This is a note to let you know that I've just added the patch titled
ixgbe: Fix Tx Hang issue with lldpad on 82598EB
to the 3.4-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:
ixgbe-fix-tx-hang-issue-with-lldpad-on-82598eb.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1eb9ac14c34a948bf1538bfb9034e8ab29099a64 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Date: Fri, 26 Jul 2013 05:46:35 -0700
Subject: ixgbe: Fix Tx Hang issue with lldpad on 82598EB
From: Jacob Keller <jacob.e.keller@xxxxxxxxx>
commit 1eb9ac14c34a948bf1538bfb9034e8ab29099a64 upstream.
This patch fixes an issue with the 82598EB device, where lldpad is causing Tx
Hangs on the card as soon as it attempts to configure DCB for the device. The
adapter will continually Tx hang and reset in a loop.
Signed-off-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Tested-by: Phil Schmitt <phillip.j.schmitt@xxxxxxxxx>
Tested-by: Jack Morgan <jack.morgan@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c
@@ -108,9 +108,8 @@ s32 ixgbe_dcb_config_tx_desc_arbiter_825
/* Enable arbiter */
reg &= ~IXGBE_DPMCS_ARBDIS;
- /* Enable DFP and Recycle mode */
- reg |= (IXGBE_DPMCS_TDPAC | IXGBE_DPMCS_TRM);
reg |= IXGBE_DPMCS_TSOEF;
+
/* Configure Max TSO packet size 34KB including payload and headers */
reg |= (0x4 << IXGBE_DPMCS_MTSOS_SHIFT);
Patches currently in stable-queue which might be from jacob.e.keller@xxxxxxxxx are
queue-3.4/ixgbe-fix-tx-hang-issue-with-lldpad-on-82598eb.patch
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