This is a note to let you know that I've just added the patch titled
ixgbe: fix for 82599 erratum on Header Splitting
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
ixgbe-fix-for-82599-erratum-on-header-splitting.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From a124339ad28389093ed15eca990d39c51c5736cc Mon Sep 17 00:00:00 2001
From: Don Skidmore <[email protected]>
Date: Tue, 18 Jan 2011 22:53:47 +0000
Subject: ixgbe: fix for 82599 erratum on Header Splitting
From: Don Skidmore <[email protected]>
commit a124339ad28389093ed15eca990d39c51c5736cc upstream.
We have found a hardware erratum on 82599 hardware that can lead to
unpredictable behavior when Header Splitting mode is enabled. So
we are no longer enabling this feature on affected hardware.
Please see the 82599 Specification Update for more information.
Signed-off-by: Don Skidmore <[email protected]>
Tested-by: Stephen Ko <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/ixgbe/ixgbe_main.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -2134,6 +2134,10 @@ static void ixgbe_configure_rx(struct ix
/* Decide whether to use packet split mode or not */
adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED;
+ /* Disable packet split due to 82599 erratum #45 */
+ if (hw->mac.type == ixgbe_mac_82599EB)
+ adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED;
+
/* Set the RX buffer length according to the mode */
if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) {
rx_buf_len = IXGBE_RX_HDR_SIZE;
Patches currently in longterm-queue-2.6.32 which might be from
[email protected] are
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