Commit 1eb9ac14 authored Jul 26, 2013 by Jacob Keller Committed by David S. Miller Jul 28, 2013

ixgbe: Fix Tx Hang issue with lldpad on 82598EB



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>
Cc: Stable <stable@vger.kernel.org>
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>

parent c74f2b26

drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82598.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -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);