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authorJacob Keller <jacob.e.keller@intel.com>2013-07-26 05:46:35 -0700
committerBen Hutchings <ben@decadent.org.uk>2013-09-10 01:57:16 +0100
commit090f5ec2de3025a9d6d0f65ff0b535c5bac01fa8 (patch)
tree5884c0c3106307d05bfe27508a9084854f695ad5
parent23d782ea98013f8d0c96233a720e9373ff741648 (diff)
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: Ben Hutchings <ben@decadent.org.uk>
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c3
1 files changed, 1 insertions, 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 fcd0e479721..2a7d0911e3b 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 */
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);