[3.5.y.z,extended,stable] Patch "ixgbe: Fix Tx Hang issue with lldpad on 82598EB" has been added to staging queue

Message ID 1375609766-11094-1-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques Aug. 4, 2013, 9:49 a.m.
This is a note to let you know that I have just added a patch titled

    ixgbe: Fix Tx Hang issue with lldpad on 82598EB

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



From 3d62608743721a4a22a15e4248f1b56e07125977 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 26 Jul 2013 05:46:35 -0700
Subject: [PATCH] ixgbe: Fix Tx Hang issue with lldpad on 82598EB

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@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Jack Morgan <jack.morgan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
 drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)



diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c
index 87592b4..b3c05de 100644
--- 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_82598(struct ixgbe_hw *hw,

 	/* Enable arbiter */
-	/* Enable DFP and Recycle mode */
 	/* Configure Max TSO packet size 34KB including payload and headers */
 	reg |= (0x4 << IXGBE_DPMCS_MTSOS_SHIFT);