Commit graph

1557 commits

Author SHA1 Message Date
Alexander Duyck
93f5b3c1f1 ixgbe: Modify setup of descriptor flags to avoid conditional jumps
This change makes it more likely that the descriptor flags setup will use
cmov instructions instead of conditional jumps when setting up the flags.
The advantage to this is that the code should just flow a bit more
smoothly.

To do this it is necessary to set the TX_FLAGS_CSUM bit in tx_flags when
doing TSO so that we also do the checksum in addition to the segmentation
offload.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:06:53 -07:00
Alexander Duyck
a50c29dd09 ixgbe: Make certain that all frames fit minimum size requirements
This change makes certain that any packet we attempt to transmit will meet
minimum size requirements for the hardware.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:06:47 -07:00
Alexander Duyck
655309e944 ixgbe: cleanup logic in ixgbe_change_mtu
This change is meant to just cleanup the logic in ixgbe_change_mtu since we
are making it unnecessarily complex due to a workaround required for 82599
when SR-IOV is enabled.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:04:33 -07:00
Alexander Duyck
f800326dca ixgbe: Replace standard receive path with a page based receive
This patch replaces the existing Rx hot-path in the ixgbe driver with a new
implementation that is based on performing a double buffered receive.  The
ixgbe driver already had something similar in place for its' packet split
path, however in that case we were still receiving the header for the
packet into the sk_buff.  The big change here is the entire receive path
will receive into pages only, and then pull the header out of the page and
copy it into the sk_buff data.  There are several motivations behind this
approach.

First, this allows us to avoid several cache misses as we were taking a
set of cache misses for allocating the sk_buff and then another set for
receiving data into the sk_buff.  We are able to avoid these misses on
receive now as we allocate the sk_buff when data is available.

Second we are able to see a considerable performance gain when an IOMMU is
enabled because we are no longer unmapping every buffer on receive.
Instead we can delay the unmap until we are unable to use the page, and
instead we can simply call sync_single_range on the half of the page that
contains new data.

Finally we are able to drop a considerable amount of code from the driver
as we no longer have to support 2 different receive modes, packet split and
one buffer.  This allows us to optimize the Rx path further since less
branching is required.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:04:27 -07:00
Ben Greear
3f2d1c0f57 ixgbe: Support RX-ALL feature flag.
This allows the NIC to receive all frames available, including
those with bad FCS, ethernet control frames, and more.

Tested by sending frames with bad FCS.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:03:22 -07:00
Ben Greear
f43f313eb7 ixgbe: Support sending custom Ethernet FCS.
Including bad FCS, used generate frames with bad FCS
to test other system's handling of RX of bad packets.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:03:16 -07:00
Ben Greear
89eaefb61d igb: Support RX-ALL feature flag.
This allows the NIC to receive all frames available, including
those with bad FCS, un-matched vlans, ethernet control frames,
and more.

Tested by sending frames with bad FCS.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:02:26 -07:00
Ben Greear
6b8f092284 igb: Support sending custom Ethernet FCS.
Including bad FCS, used generate frames with bad FCS
to test other system's handling of RX of bad packets.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-17 01:02:20 -07:00
Stefan Roese
6a228452d1 stmmac: Add device-tree support
This patch adds support to configure the STMMAC ethernet driver via
device-tree instead of platform_data.

Currently, only the properties needed on SPEAr600 are provided. All
other properties should be added once needed on other platforms.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-16 22:48:53 -07:00
Santosh Nayak
06d6c10876 netxen: qlogic ethernet : Fix endian bug.
Change the datatype of "ip_addr" to __be32 as 'ip' should be in
big endian format.

Adapter needs "ip address" in big endian format stored at lower 32bit
of req.word[1]. netxen_config_ipaddr() now receives 'ip' in big endian
format. To satisfy adapter's need, use memcpy() to copy byte by byte
of 'ip' into lower 32bit of req.word[1].

Mac address and serial number of adapter need to be in little endian format.
Change the data type of the related  variables to __le32 / __le64 or cast it
explicitly to __le32 / __le64 depending upon the requirement.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-16 22:20:44 -07:00
Rami Rosen
50cdc8fc40 pxa168: remove unused stats member.
The patch removes unused stats member in pxa168 network driver.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-16 21:54:44 -07:00
Michal Schmidt
c0ea452e42 bnx2x: fix memory leak in bnx2x_init_firmware()
When cycling the interface down and up, bnx2x_init_firmware() knows that
the firmware is already loaded, but nevertheless it allocates certain
arrays anew (init_data, init_ops, init_ops_offsets, iro_arr). The old
arrays are leaked.

Fix the leaks by returning early if the firmware was already loaded.
Because if the firmware is loaded, so are the arrays.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-16 01:57:26 -07:00
Michal Schmidt
127d0a198a bnx2x: fix a crash on corrupt firmware file
If the requested firmware is deemed corrupt and then released, reset the
pointer to NULL in order to avoid double-freeing it in
bnx2x_release_firmware() or dereferencing it in bnx2x_init_firmware().

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-16 01:57:26 -07:00
Paul Gortmaker
1571df8f2d gianfar: delete orphaned version strings and dead macros
There were two version strings, and neither one was being used.
Also in the same proximity were some unused #define that were
left over from the past.  Delete them all.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-03-15 15:37:49 -04:00
Paul Gortmaker
30f7e31066 gianfar: constify giant block of status descriptor strings
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-03-15 15:37:49 -04:00
Paul Gortmaker
d8a0f1b0af gianfar: Add support for byte queue limits.
Add support for byte queue limits (BQL), based on the similar
modifications made to intel/igb/igb_main.c from Eric Dumazet
in commit bdbc063129
	"igb: Add support for byte queue limits."

A local variable for tx_queue->qindex was introduced in
gfar_clean_tx_ring, since it is now used often enough to warrant it,
and it cleans up the readability somewhat as well.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-03-15 15:37:48 -04:00
John Fastabend
cdf485be3a ixgbe: dcb: use DCB config values for FCoE traffic class on open
Disabling and enabling DCB can cause FCoE hardware initialization to
occur on the incorrect traffic class when the up2tc mapping has not
yet been reconfigured.

Fix this by using the DCB configuration maps that are correct
and will be pushed at mqprio after DCB driver setup completes
successfully.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:49:10 -07:00
Atita Shirwaikar
d2f5e7f3af ixgbe: Fix race condition where RX buffer could become corrupted.
There was a race condition in the reset path where the RX buffer
could become corrupted during Fdir configuration.This is due to
a HW bug.The fix right now is to lock the buffer while we do the
fdir configuration.Since we were using similar workaround for another bug,
I moved the existing code to a function and reused it.HW team also recommended
that IXGBE_MAX_SECRX_POLL value be changed from 30 to 40.The erratum for this
bug will be published in the next release 82599 Spec Update

Signed-off-by: Atita Shirwaikar <atita.shirwaikar@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:47:42 -07:00
Jesse Brandeburg
3ed69d7e31 ixgbe: use typed min/max functions where possible
using the form min((int)var, ver)) is replaced by min_t(int, ...)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:45:05 -07:00
Don Skidmore
9cdcf09880 ixgbe: fix obvious return value bug.
This is clearly a typeo where we are not checking the return value from
get_link_capabilities but should.  This patch corrects that.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:41:26 -07:00
Alexander Duyck
621bd70eda ixgbe: Replace eitr_low and eitr_high with static values in ixgbe_update_itr
There isn't much point in using variables to store the values of eitr_low
and eitr_high since they are not user changeable.  As such I am replacing
them with the constants 10 and 20 in order to avoid any confusion on what
the values actually are.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:33:38 -07:00
Alexander Duyck
bdda1a61c1 ixgbe: Do not disable read relaxed ordering when DCA is enabled
A previous fix had gone though and disabled relaxed ordering for Rx
descriptor read fetching.  This was not necessary as this functions
correctly and has no ill effects on the system.

In addition several of the defines used for the DCA control registers were
incorrect in that they indicated descriptor effects when they actually had
an impact on either data or header write back.  As such I have update these
to correctly reflect either DATA or HEAD.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:30:17 -07:00
Joe Perches
5edc446582 ixgb: Remove unnecessary defines, use pr_debug
Use the current logging styles.

Remove unnecessary _DEBUG_DRIVER_ and PFX, use pr_debug.
Coalesce format.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by:  Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-14 00:26:42 -07:00
Alexander Duyck
3832b26e49 ixgbe: Simplify logic for ethtool loopback frame creation and testing
This change makes it a bit easier to do the loopback frame creating and
testing.  Previously we were doing an and to drop the last bit, and then
dividing the frame_size by 2 in order to get locations for frame bytes and
testing.  Instead we can simplify it by just shifting the register one bit
to the right and using that for the frame offsets.

This change also replaces all instances of rx_buffer_info with just
rx_buffer since that is closer to the name of the actual structure being
used and can save a few extra characters.

In addition I have updated the logic for cleaning up a test frame so that
we pass an rx_buffer instead of the sk_buff.  The main motivation behind
this is changes that will replace the sk_buff with just a page in the
future.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:56:52 -07:00
Alexander Duyck
a557928e26 ixgbe: Add iterator for cycling through rings on a q_vector
Since there are multiple spots where we have to cycle through all of the
rings on a q_vector it makes sense to just add a function for iterating
through all of them.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:55:24 -07:00
Alexander Duyck
de88eeeb16 ixgbe: Allocate rings as part of the q_vector
This patch makes the rings a part of the q_vector directly instead of
indirectly.  Specifically on x86 systems this helps to avoid any cache
set conflicts between the q_vector, the tx_rings, and the rx_rings as the
critical stride is 4K and in order to cross that boundary you would need to
have over 15 rings on a single q_vector.

In addition this allows for smarter allocations when Flow Director is
enabled.  Previously Flow Director would set the irq_affinity hints based
on the CPU and was still using a node interleaving approach which on some
systems would end up with the two values mismatched.  With the new approach
we can set the affinity for the irq_vector and use the CPU for that
affinity to determine the node value for the node and the rings.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:52:48 -07:00
Alexander Duyck
b9f6ed2bab ixgbe: Drop unnecessary napi_schedule_prep and spare blank line from ixgbe_intr
This patch is a minor cleanup to address the unnecessary use of
napi_schedule_prep in ixgbe_intr and to also remove a blank line that is
not needed since it is separating a comment from the line it is explaining.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:34:30 -07:00
Alexander Duyck
8f15486dd0 ixgbe: Default to queue pairs when number of queues is less than CPUs
The old code had several errors in how it was determining the vector
budget.  In order to simplify things this patch updates the code so that it
will attempt to always allocated paired Rx/Tx vectors instead of attempting
to allocate individual vectors when the number of queues is less than the
number of CPUs.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:32:27 -07:00
Alexander Duyck
5d967eb7f8 ixgbe: Correct Adaptive Interrupt Moderation so that it will change values
This change corrects an issue in which Adaptive Interrupt Moderation was
not changing values due to the fact that we were performing an and
operation on the resultant value that was causing the value to never change
from the default 20K interrupts per second.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:29:40 -07:00
Alexander Duyck
e954b374b4 ixgbe: Address issues with Tx WHTRESH value not being set correctly
This change is meant to address the fact that the tx_itr_setting was
dropping to 0 when no separate Tx vectors were provided.  This had resulted
in the driver incorrectly configuring the Tx ring with a WTHRESH of 1 in
order to avoid Tx hangs even though that was not necessary. This change
makes it so that we instead take a look at the Tx ring's q_vector to
determine if the ring will have an ITR value less than 8us.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:28:25 -07:00
Alexander Duyck
46646e61ea ixgbe: Reorder adapter contents for better cache utilization
This change moves several frequently accessed items together into one cache
line in order to reduce cache misses in the hot-path.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:27:24 -07:00
Alexander Duyck
7f83a9e629 ixgbe: Do no clear Tx status bits since eop_desc provides enough info
There isn't any need to clear the status bits in the descriptors due to the
fact that the eop_desc provides enough information for us to know
that we have cleaned to the last packet that the software has put on the
ring.  The status bits are cleared as a part of putting the frame on the
ring so as long as we do not read the descriptor bit prior to reading the
value eop_desc we should be able to guarantee that we will not clean beyond
the end of the current data stream.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:26:27 -07:00
Alexander Duyck
5c4903549c net: Fix issue with netdev_tx_reset_queue not resetting queue from XOFF state
We are seeing dev_watchdog hangs on several drivers.  I suspect this is due
to the __QUEUE_STATE_STACK_XOFF bit being set prior to a reset for link
change, and then not being cleared by netdev_tx_reset_queue.  This change
corrects that.

In addition we were seeing dev_watchdog hangs on igb after running the
ethtool tests.  We found this to be due to the fact that the ethtool test
runs the same logic as ndo_start_xmit, but we were never clearing the XOFF
flag since the loopback test in ethtool does not do byte queue accounting.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-12 20:16:53 -07:00
Alexander Duyck
b2d96e0ac0 ixgbe: add support for byte queue limits
This adds support for byte queue limits (BQL).

Based on patch from Eric Dumazet for igb.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
2012-03-12 20:14:53 -07:00
Jeff Kirsher
35551c4749 ixgbe: remove tie between NAPI work limits and interrupt moderation
As noted by Ben Hutchings and David Miller, work limits for NAPI
should not be tied to interrupt moderation parameters.  This
should be handled by NAPI, possibly through sysfs.

Neil Horman & Stephen Hemminger are working on a solution for
NAPI currently.  In the meantime, remove this tie between
work limits and interrupt moderation.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
2012-03-12 20:13:19 -07:00
Jeff Kirsher
51a76c3092 igb: fix ethtool offline test
A bug was introduced with the following patch:

  Commmit bdbc063129
  Author: Eric Dumazet <eric.dumazet@gmail.com>
  igb: Add support for byte queue limits.

The ethtool offline tests will cause a perpetual link flap, this
is because the tests also need to account for byte queue limits (BQL).

CC: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by:  Jeff Pieper  <jeffrey.e.pieper@intel.com>
2012-03-12 20:10:58 -07:00
Dmitry Kravkov
f124488e47 bnx2x: code doesn't use stats for allocating Rx BDs
Previously, allocation used queue statistics directly in its calcualtion.
This change causes these calculations to be summed into the statistics,
without being affected by them.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:50 -07:00
Yuval Mintz
241fb5d2b4 bnx2x: ethtool returns req. AN even when AN fails
Previously, if autoneg failed, ethtool would return the achieved autoneg.
This patch corrects this, causing ethtool to return the requested autoneg
capabilities even if autoneg fails.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
Yuval Mintz
382984618e bnx2x: ethtool now returns unknown speed/duplex
Previously, unless both interface and link were up, ethtool returned
the requested speed/duplex when asked for the interface's settings.
This change will now enable the driver to answer correctly (i.e.,
return unknown as its answer).

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
Yuval Mintz
9ce392d4fa bnx2x: mark functions as loaded on shared memory
This change enables the FW to make more accurate decisions regarding the
active functions.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
Yuval Mintz
259afa1f72 bnx2x: use param's id instead of sp_obj's id
Previously, we've used the object's function id instead of using the
input's value. This is remedied, as in other flows.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
Yuval Mintz
33ac338cf9 bnx2x: set_one_mac_e1x uses raw's state as input
Previously, we used a hard-coded value as paramater, instead of using the
input's value. This is now remedied, as in other flows.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
Yuval Mintz
c121089d97 bnx2x: removed unused function bnx2x_queue_set_cos_cid
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
Yuval Mintz
0a52fd0196 bnx2x: move LLH_CAM to header, apply naming conventions
These definitions are united into the header.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:10:49 -07:00
stigge@antcom.de
b7370112f5 lpc32xx: Added ethernet driver
This patch adds an ethernet driver for the LPC32xx ARM SoC.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:08:34 -07:00
Yuval Mintz
de5c37414a bnx2x: FCoE statistics id fixed
FCoE statistics ids were distinguished from the L2's statistics ids.
However, not all of the change was committed. This causes a possible
collision of indices when FCoE is present.

This patch fixes the issue.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:01:25 -07:00
Yuval Mintz
e695a2dda1 bnx2x: dcb bit indices flags used as bits
DCB flags were updated using the flags' bit offsets instead of
the actual bits. This is now fixed.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:01:25 -07:00
Ariel Elior
ab4a71392e bnx2x: added cpu_to_le16 when preparing ramrod's data
Fixed endianess issue when passing arguments to FW.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:01:25 -07:00
Yuval Mintz
db0ea84845 bnx2x: pfc statistics counts pfc events twice
When pfc statistics were counted, the delta change from last count
was summed twice. This fixes the issue.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-12 17:01:25 -07:00
Roland Dreier
42872c7a5e Merge branches 'misc' and 'mlx4' into for-next
Conflicts:
	drivers/infiniband/hw/mlx4/main.c
	drivers/net/ethernet/mellanox/mlx4/main.c
	include/linux/mlx4/device.h
2012-03-12 16:25:28 -07:00
Roland Dreier
db5a7a65c0 mlx4_core: Scale size of MTT table with system RAM
The current driver defaults to 1M MTT segments, where each segment holds
8 MTT entries.  This limits the total memory registered to 8M * PAGE_SIZE
which is 32GB with 4K pages.  Since systems that have much more memory
are pretty common now (at least among systems with InfiniBand hardware),
this limit ends up getting hit in practice quite a bit.

Handle this by having the driver allocate at least enough MTT entries to
cover 2 * totalram pages.

Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-12 16:24:59 -07:00
Or Gerlitz
096335b3f9 mlx4_core: Allow dynamic MTU configuration for IB ports
Set the MTU for IB ports in the driver instead of using the firmware
default of 2KB (the driver defaults to 4KB).  Allow for dynamic mtu
configuration through a new, per-port sysfs entry.

Since there's a dependency between the port MTU and the max number of
HW VLs the port can support, apply a mim/max approach, using a loop
that goes down from the highest possible number of VLs to the lowest,
using the firmware return status to know whether the requested number
of VLs is possible with a given MTU.

For now, as with the dynamic link type change / VPI support, the sysfs
entry to change the mtu is exposed only when NOT running in SR-IOV
mode.  To allow changing the MTU for the master in SR-IOV mode,
primary-function-initiated FLR (Function Level Reset) needs to be
implemented.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-12 16:24:59 -07:00
Jack Morgenstein
5984be9004 mlx4_core: Report thermal error events
Print an error message when a thermal error async event is reported by the HW.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Dotan Barak <dotanb@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-12 16:24:59 -07:00
Roland Dreier
e10903b087 mlx4_core: Fix one more static exported function
Commit 22c8bff6fa ("mlx4_core: Exported functions can't be static")
fixed most of this up, but forgot about mlx4_is_slave_active().  Fix
this one too.

Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-12 16:24:58 -07:00
Richard Cochran
5047fb5d1d r8169: enable transmit time stamping.
This patch has been tested on a machine with the Realtek
RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05).

Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-11 15:43:40 -07:00
David S. Miller
bb092c0db8 Merge branch 'davem-next.r8169' of git://violet.fr.zoreil.com/romieu/linux 2012-03-11 15:34:01 -07:00
Francois Romieu
92a7c4e718 r8169: stop using net_device.{base_addr, irq}.
The driver does not need this leftover of the ISA drivers era.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:39:27 +01:00
Francois Romieu
31fa8b1855 r8169: move rtl_cfg_info closer to its caller.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:39:25 +01:00
Francois Romieu
dc1c00ce70 r8169: move the netpoll handler after the irq handler.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:39:22 +01:00
Francois Romieu
df43ac7831 r8169: move rtl8169_open after rtl_task it depends on.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:39:17 +01:00
Francois Romieu
e6b763ea05 r8169: move rtl_set_rx_mode before its rtl_hw_start callers.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:39:15 +01:00
Francois Romieu
fa9c385ef5 r8169: move net_device_ops beyond the methods it references.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:38:21 +01:00
Francois Romieu
3b6cf25de2 r8169: move the driver probe method to the end of the driver file.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:38:18 +01:00
Francois Romieu
e27566ed37 r8169: move the driver removal method to the end of the driver file.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
2012-03-10 22:38:13 +01:00
Stephen Rothwell
a320757ab8 net: powerpc: remove the legacy iSeries ethernet driver
This driver is specific to the PowerPC legcay iSeries platform which is
being removed.

Cc: David Miller <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-09 23:41:26 -05:00
David S. Miller
d503859678 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next 2012-03-09 21:54:28 -05:00
David S. Miller
b2d3298e09 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-03-09 14:34:20 -08:00
Takahiroi Shimizu
1a0bdadb4e net/pch_gbe: supports eg20t ptp clock
Supports EG20T ptp clock in the driver

Changes e-mail address.

Adds number.

Signed-off-by: Takahiro Shimizu <tshimizu818@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-09 13:55:38 -08:00
Roopa Prabhu
b8622cbd58 enic: Fix addr valid check in enic_set_vf_mac
zero mac address is a valid address for VIC dynamic vnic and sriov Vf's.
Fix the check in enic_set_vf_mac appropriately

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:28:19 -08:00
Jack Morgenstein
dcf353b170 mlx4_core: fix bug in modify_cq wrapper for resize flow.
The actual FW command is called in procedure "handle_resize".
Code incorrectly invoked the FW command again (in good flow), in
the modify_cq wrapper function.

Fix by skipping second FW invocation unconditionally for resize.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:28:01 -08:00
Dan Carpenter
7831545732 atl1c: set ATL1C_WORK_EVENT_RESET bit correctly
ATL1C_WORK_EVENT_RESET is zero so the original code here is a nop.  The
intent was to set the zero bit.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:27:45 -08:00
Eric Dumazet
09c1d446fe ehea: restore multicast and rx_errors fields
Commit 239c562c94 (ehea: Add 64bit statistics) added a regression,
since we no longer report multicast & rx_errors fields, taken from
port->stats structure. These fields are updated in ehea_update_stats()
every second.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-08 00:23:04 -08:00
Or Gerlitz
8154c07fe1 mlx4_core: Get rid of redundant ext_port_cap flags
While doing the work for commit a6f7feae6d ("IB/mlx4: pass SMP
vendor-specific attribute MADs to firmware") we realized that the
firmware would respond on all sorts of vendor-specific MADs.
Therefore commit 97285b7817 ("mlx4_core: Add extended port
capabilities support") adds redundant code into the driver, since
there's no real reaon to maintain the extended capabilities of the
port, as they can be queried on demand (e.g the FDR10 capability).

This patch reverts commit 97285b7817 and removes the check for
extended caps from the mlx4_ib driver port query flow.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-06 17:25:18 -08:00
Duc Dang
ae5d33723e powerpc/44x: Add more changes for APM821XX EMAC driver
This patch includes:

  Configure EMAC PHY clock source (clock from PHY or internal clock).

  Do not advertise PHY half duplex capability as APM821XX EMAC does not support half duplex mode.

  Add changes to support configuring jumbo frame for APM821XX EMAC.

[ Fix coding style -DaveM ]

Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 17:07:42 -05:00
Vipul Pandya
79421b4eae cxgb4vf: Add support for Chelsio's T480-CR and T440-LP-CR adapters
This patch adds PCI device ids for Chelsio's T480-CR and T440-LP-CR
adapters.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 16:21:17 -05:00
Vipul Pandya
f637d577cf cxgb4: Add support for Chelsio's T480-CR and T440-LP-CR adapters
This patch adds PCI device ids for Chelsio's T480-CR and T440-LP-CR
adapters.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 16:21:17 -05:00
Yevgeny Petrilin
66431a7d45 net/mlx4: defining functions as static
Fixing sparse warnings, the 2 functions are only used in same
file. Defining them as static and not exporting them.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:18 -05:00
Yevgeny Petrilin
be6736ba1f net/mlx4: remove unused functions
Removing functions that are no longer in use, but still exist

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:18 -05:00
Yevgeny Petrilin
9a9a232a92 net/mlx4: fixing sparse warnings for not declared, functions
The SET_PORT functions are implemented in port.c, which is part
of mlx4_core, these functions are exported. The functions are in use by
the mlx4_en module (were originally part of mlx4_en).
Their declaration remained in mlx4_en module, moving the declaration to the right location.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:18 -05:00
Yevgeny Petrilin
2ab573c586 net/mlx4: fixing sparse warnings when copying mac, address to gid entry
The mac should be written as __be64 the gid. The warning was because
we changed the mac parameter, which is u64, by writing result of cpu_to_be64
into it. Fixing by using new variable of type __be64.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:17 -05:00
Yevgeny Petrilin
39b2c4ebb4 net/mlx4: fix sparse warnings on wrong type for RSS keys
The keys used for the hardware RSS topelitz hash are of type __be32
where the values provided by the driver are from array of u32,
this triggered sparse warning on incorrect type in assignment as of different base types.
Since these values are picked randomly,
the fix is to transform the key to __be32 by executing cpu_to_be_32()

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:17 -05:00
Or Gerlitz
966684d581 net/mlx4: fix sparse warnings on TX blue flame buffer
The blue flame buffer is defined to be of type void __iomem *
but was passed to mlx4_bf_copy which gets unsigned long * .
This triggered sparse warning on different address spaces,
fix that by changing mlx4_bf_copy first param to be of type void __iomem * .

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:17 -05:00
Or Gerlitz
4ef2a435be net/mlx4: fix sparse warnings on TX control flags, endianess
Fix sparse warnings on incompatibility between the endianess of the ctrl_flags
field of struct mlx4_en_priv to the srcrb_flags field of struct
mlx4_wqe_ctrl_seg by changing the former to be __be32 instead of u32.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:17 -05:00
Yevgeny Petrilin
ebf8c9aa03 net/mlx4_en: Saving mem access on data path
Localized the pdev->dev, and using dma_map instead of pci_map
There are multiple map/unmap operations on data path,
optimizing those by saving redundant pointer access.
Those places were identified as hot-spots when running kernel profiling
during some benchmarks.
The fixes had most impact when testing packet rate with small packets,
reducing several % from CPU load, and in some case being the difference
between reaching wire speed or being CPU bound.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:17 -05:00
Santosh Nayak
6975f4ce5a qla3xxx: ethernet: Silence static checker warning.
Silence the following warning:
"warn: returning -1 instead of -ENOMEM is sloppy".

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 15:19:14 -05:00
Yevgeny Petrilin
1d4526e037 mlx4_core: remove buggy sched_queue masking
Fixes a bug introduced by commit fe9a2603c, where the priority bits
in the schedule queue field were masked out.

Signed-off-by: Amir Vadai <amirv@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 14:43:50 -05:00
françois romieu
2a15cd2ff4 r8169: runtime resume before shutdown.
With runtime PM, if the ethernet cable is disconnected, the device is
transitioned to D3 state to conserve energy. If the system is shutdown
in this state, any register accesses in rtl_shutdown are dropped on
the floor. As the device was programmed by .runtime_suspend() to wake
on link changes, it is thus brought back up as soon as the link recovers.

Resuming every suspended device through the driver core would slow things
down and it is not clear how many devices really need it now.

Original report and D0 transition patch by Sameer Nanda. Patch has been
changed to comply with advices by Rafael J. Wysocki and the PM folks.

Reported-by: Sameer Nanda <snanda@chromium.org>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Hayes Wang <hayeswang@realtek.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 14:43:49 -05:00
Ben Hutchings
460eeaa03c sfc: Log the part number on probe
During probe of each port, read and log the part number from VPD.
Remove the Falcon-specific board name lookup.

Initial version by Stuart Hodgson <smhodgson@solarflare.com>.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:16 +00:00
Ben Hutchings
58f7e57d11 sfc: Remove efx_channel::last_eventq_read_ptr
This member has never been used in a production version of the driver.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:15 +00:00
Ben Hutchings
dd40781e3a sfc: Run event/IRQ self-test asynchronously when interface is brought up
Generate a test event on each event queue whenever the interface is
brought up, then after 1 second check that we have either handled a
test event or handled another IRQ for each event queue.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:15 +00:00
Ben Hutchings
eee6f6a9e0 sfc: Encapsulate access to efx_{channel,nic}::last_irq_cpu in self-test
Cleanup in preparation for doing an event test on ifup.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:15 +00:00
Ben Hutchings
ed74f48087 sfc: Test all event queues in parallel
In case all event queues are broken for some reason, this means it
will only take about a second to check them all, rather than up to 32
seconds.  This may also speed up testing in the successful case.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:14 +00:00
Ben Hutchings
93e5dfa59b sfc: Raise self-test timeouts
IRQ latency can be ridiculously high for various reasons, so our
current timeouts of 100 ms or 10 ms are too short.

Change the IRQ and event tests to use polling loops starting with a
delay of 1 tick and doubling that if necessary up to a maximum total
delay of approximately 1 second.

Raise the loopback packet RX timeout to 1 second.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:14 +00:00
Ben Hutchings
e7bed9c883 sfc: Remove TX completions from adaptive IRQ scoring
RX and TX completions on the same event queue are generally not associated
with the same flows.  The inclusion of TX completions in the adaptive IRQ
score is more of a source of noise rather than useful feedback.  Therefore,
do not include them in the score, and adjust the default threshold scores
down.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:14 +00:00
Ben Hutchings
61321d92fc sfc: Update comments on efx_rx_packet_gro()
The in-tree driver has never supported Driverlink.  The rest of the
comments are rather redundant, but we can usefully state what the
requirements are on the buffer state.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:14 +00:00
Ben Hutchings
bdca71ede7 sfc: Remove redundant function efx_nic_has_mc()
This function is now used in only one place, where it always returns
true.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:13 +00:00
Robert Stonehouse
2c61c8a787 sfc: Fix calculation of vf_i in map_vi_index()
This was broken during refactoring to use efx_vf_size().

[bwh: Keep using efx_vf_size()]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-03-06 18:14:13 +00:00
Tom Herbert
5cb917bc4f tg3: Fix to use multi queue BQL interfaces
Fix tg3 to use BQL multi queue related netdev interfaces since the
device supports multi queue.

Signed-off-by: Tom Herbert <therbert@google.com>
Reported-by: Christoph Lameter <cl@gentwo.org>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 01:19:08 -05:00
Junchang Wang
9184a22701 8139too: Add 64bit statistics
Switch to use ndo_get_stats64 to get 64bit statistics.
Two sync entries are used (one for Rx and one for Tx).

Signed-off-by: Junchang Wang <junchangwang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-06 00:04:16 -05:00
David S. Miller
f6a1ad4295 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/vmxnet3/vmxnet3_drv.c

Small vmxnet3 conflict with header size bug fix in 'net'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-05 21:16:26 -05:00