linux.git/drivers/net/ixgbe, branch v2.6.31

ixgbe: Fix receive on real device when VLANs are configured

2009-08-14T03:13:23+00:00

Traffic received with a priority tag (VID = 0) and non-zero priority value was
incorrectly handled by the VLAN packet code path due to a check on zero for
the whole VLAN tag instead of just the VID.

This patch masked out the priority field when checking the vlan tag for
received VLAN packets.

Signed-off-by: Lucy Liu 
Acked-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Do not return 0 in ixgbe_fcoe_ddp() upon FCP_RSP in DDP completion

2009-08-14T03:13:22+00:00

We return the ddp->len in ixgbe_fcoe_ddp() to indicate the length of data that
have been DDPed. However, it is possible that the length is 0, e.g., for SCSI
READ, the FCP_RSP may come back w/ SCSI status 0x28 as Task Set Full with no FCP
data for DDP. In ixgbe_fcoe_ddp(), we return 0 to indicate not passing DDPed
packets to upper layer. Therefore in the case of ddp->len being 0 upon FCP_RSP,
we do not want to return the 0 ddp->len as we want FCP_RSP to be always
delivered to the upper layer. This patch fixes this bug by setting rc only if
ddp->len is non-zero.

Signed-off-by: Yi Zou 
Acked-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: fix issues setting rx-usecs with legacy interrupts

2009-08-13T23:33:02+00:00

Currently setting rx-usecs when the interface is in legacy interrupt
mode it is not immediate.  We were only setting EITR for each MSIx
vector and since this count would be zero for legacy mode it wasn't
set until after a reset.  This patch corrects that by checking what
mode we are in and then setting EITR accordingly.

Signed-off-by: Don Skidmore 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Disable packet split only on FCoE queues in 82599

2009-08-10T04:45:36+00:00

For 82599, packet split has to be disabled for FCoE direct data placement.
However, this is only required on received queues allocated for FCoE. This
patch adds a per ring flags to indicate if packet split is disabled on a
per queue basis, particularly for FCoE, as packet split must be disabled
for large receive using direct data placement (DDP).

Signed-off-by: Yi Zou 
Acked-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Pass rx_ring directly in ixgbe_configure_srrctl()

2009-08-10T04:45:35+00:00

Instead of passing the register index of the corresponding rx_ring and find
the way back to get to corresponding rx_ring in ixgbe_configure_srrctl(),
simplify the function ixgbe_configure_srrctl() by passing the rx_ring into
it. Then the register index for that rx_ring is already available from
rx_ring->reg_idx.

Signed-off-by: Yi Zou 
Acked-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Patch to modify 82598 PCIe completion timeout values

2009-08-03T20:24:58+00:00

The default completion timeout values for 82598 should be in the
range of 50us to 50ms, however the hardware default for these
parts is 500us to 1ms which is less than the 10ms recommended by
the pcie spec. To address this we need to increase the value to
either 10ms to 250ms for capability version 1 configuration, or
16ms to 55ms for version 2.

Signed-off-by: Mallikarjuna R Chilakala 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Fix RSC completion delay causing Rx interrupts to stop

2009-07-31T02:00:30+00:00

When a user disables interrupt throttling with ethtool on 82599 devices,
the interrupt timer may not be re-enabled if hardware RSC is running.  The
RSC completions in hardware don't complete before the next ITR event tries
to fire, so the ITR timer never gets re-armed.  This patch increases the
amount of time between interrupts when throttling is disabled (rx-usecs =
0) when the hardware RSC deature is enabled.

Signed-off-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Fix usage of second flags bitmap when using LRO/RSC

2009-07-31T02:00:29+00:00

A second set of feature flag bits was added, and the hardware RSC engine
flags were moved there.  However, the code itself didn't make the move
completely to use the new bitmap.

Signed-off-by: Peter P Waskiewicz Jr 
Acked-by: Mallikarjuna R Chilakala 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: Fix netpoll to be properly multiqueue aware

2009-07-31T02:00:24+00:00

Our ndo_poll_controller callback is broken for anything but non-multiqueue
setups.  This fixes that issue.

Signed-off-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ixgbe: fix for 82599 errata marking UDP checksum errors

2009-07-27T03:20:47+00:00

There is an 82599 errata that UDP frames with a zero checksum are
incorrectly marked as checksum invalid by the hardware.  This was
leading to misleading hw_csum_rx_error counts. This patch adds a
test around this counter increase for this condition.

Signed-off-by: Don Skidmore 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller