kernel/git/stable/linux-stable.git/drivers/net/ixgbe, branch linux-2.6.32.y

net: Fix IPv6 GSO type checks in Intel ethernet drivers

2011-11-07T20:31:50+00:00

commit 8e1e8a4779cb23c1d9f51e9223795e07ec54d77a upstream. Found this problem when testing IPv6 from a KVM guest to a remote host via e1000e device on the host. The following patch fixes the check for IPv6 GSO packet in Intel ethernet drivers to use skb_is_gso_v6(). SKB_GSO_DODGY is also set when packets are forwarded from a guest. Signed-off-by: Sridhar Samudrala Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Signed-off-by: Faidon Liambotis Signed-off-by: Greg Kroah-Hartman

ixgbe: fix for 82599 erratum on Header Splitting

2011-03-14T21:29:54+00:00

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 Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher Signed-off-by: Greg Kroah-Hartman

ixgbe: prevent speculative processing of descriptors before ready

2011-03-02T14:46:42+00:00

commit 3c945e5b3719bcc18c6ddd31bbcae8ef94f3d19a upstream. The PowerPC architecture does not require loads to independent bytes to be ordered without adding an explicit barrier. In ixgbe_clean_rx_irq we load the status bit then load the packet data. With packet split disabled if these loads go out of order we get a stale packet, but we will notice the bad sequence numbers and drop it. The problem occurs with packet split enabled where the TCP/IP header and data are in different descriptors. If the reads go out of order we may have data that doesn't match the TCP/IP header. Since we use hardware checksumming this bad data is never verified and it makes it all the way to the application. This bug was found during stress testing and adding this barrier has been shown to fix it. Signed-off-by: Milton Miller Signed-off-by: Anton Blanchard Acked-by: Don Skidmore Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Cc: maximilian attems Signed-off-by: Greg Kroah-Hartman

ixgbe: add support for 82599 based Express Module X520-P2

2011-03-02T14:46:42+00:00

commit 38ad1c8e8c8debf73b28543a3250a01f799f78ef upstream. This patch will add the device ID for the 82599-based Ethernet Express Module X520-P2 SFI card. Signed-off-by: Don Skidmore Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Cc: maximilian attems Signed-off-by: Greg Kroah-Hartman

ixgbe: Fix return of invalid txq

2010-07-05T18:10:26+00:00

commit fdd3d631cddad20ad9d3e1eb7dbf26825a8a121f upstream. a developer had complained of getting lots of warnings: "eth16 selects TX queue 98, but real number of TX queues is 64" http://www.mail-archive.com/e1000-devel@lists.sourceforge.net/msg02200.html As there was no follow up on that bug, I am submitting this patch assuming that the other return points will not return invalid txq's, and also that this fixes the bug (not tested). Signed-off-by: Krishna Kumar Signed-off-by: Jesse Brandeburg Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

ixgbe: add support for 82599 KR device 0x1517

2010-04-01T22:58:17+00:00

commit 74757d49016a8b06ca028196886641d7aeb78de5 upstream. Signed-off-by: Don Skidmore Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

ixgbe: move tc variable to CONFIG_IXGBE_DCB

2009-11-20T21:47:27+00:00

tc is required by CONFIG_IXGBE_DCB. This also fixes compilation warning: drivers/net/ixgbe/ixgbe_main.c: In function ‘ixgbe_tx_is_paused’: drivers/net/ixgbe/ixgbe_main.c:245: warning: unused variable ‘tc’ Signed-off-by: Jaswinder Singh Rajput Acked-by: Jeff Kirsher Signed-off-by: David S. Miller

ixgbe: Fixing EEH handler to handle more than one error

2009-11-17T07:51:32+00:00

After commmit 4b77b0a2ba27d64f58f16d8d4d48d8319dda36ff EEH breaks after the second error, since it calls pci_restore_state() but it returns 0, since pci->state_saved is false. So, this patch just call pci_save_state() after pci_restore_state(). Signed-off-by: Breno Leitao Acked-by: Peter P Waskiewicz Jr Signed-off-by: David S. Miller

ixgbe: fix traffic hangs on Tx with ioatdma loaded

2009-11-07T04:33:37+00:00

When ioatdma was loaded we we were unable to transmit traffic. We weren't using the correct registers in ixgbe_update_tx_dca for 82599 systems. Likewise in ixgbe_configure_tx() we weren't disabling the arbiter before modifying MTQC. Signed-off-by: Don Skidmore Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller

ixgbe: Fix checking TFCS register for TXOFF status when DCB is enabled

2009-11-07T04:33:36+00:00

When DCB is enabled, the ixgbe_check_tx_hang() should check the corresponding TC's TXOFF in TFCS based on the TC that the tx ring belongs to. Adds a function to map from the tx_ring hw reg_idx to the correspodning TC and read TFCS accordingly. Signed-off-by: Yi Zou Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller