Commit graph

201822 commits

Author SHA1 Message Date
Tony Lindgren
8d9166b519 omap2/3/4: Add Kconfig option to compile in typical omap features
This produces a sane config that's suitable for using as the
base for most omap2/3/4 boards.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:48 +03:00
Tony Lindgren
ffb63e3402 omap2/3/4: Select all omaps and boards by default
Select all omaps and boards by default

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:47 +03:00
Tony Lindgren
68ac8f7dda omap2/3/4: Move Kconfig options to mach-omap2/Kconfig
Move omap2/3/4 specific Kconfig options to mach-omap2/Kconfig

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:47 +03:00
Tony Lindgren
4a54db6124 omap: Make omap specific features appear under Kconfig menu
This will make Kconfig look nicer for selecting omap processor type

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:47 +03:00
Tony Lindgren
f0ca2c05dd omap: Use 32KiHZ timer by default
Use 32KiHZ timer by default as this is available on all omaps
except 15xx based systems.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:46 +03:00
Tony Lindgren
fb78b51cb1 ARM: Disable VGA console for ARM in most cases
Otherwise we have to disable it manually to avoid compile errors.

Now it's only enabled only for the selected machines as suggested
by Anton Vorontsov <cbouatmailru@gmail.com>:

$ git grep VGA_CONSOLE= arch/arm/configs/
arch/arm/configs/footbridge_defconfig:CONFIG_VGA_CONSOLE=y
arch/arm/configs/integrator_defconfig:CONFIG_VGA_CONSOLE=y
arch/arm/configs/netwinder_defconfig:CONFIG_VGA_CONSOLE=y

Note that the Kconfig entry no longer needs separate entries
for ARCH_ACORN, ARCH_EBSA110 ARCH_VERSATILE.

Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:46 +03:00
Tony Lindgren
c9d8230e31 omap: mux: Remove old mux code
All mach-omap2 omaps should now use the new mux code.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:40 +03:00
Tony Lindgren
f99bf16d70 omap: mux: Convert 2420 platform init code to use new mux code
Convert 2420 platform init code to use new mux code

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:40 +03:00
Tony Lindgren
58310acd3a omap: mux: Mux 2430 USB0HS_STP in board-2430.c
Use new mux functions for that. There are no other known 2430 boards
that need this mux.

Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:39 +03:00
Tony Lindgren
18dbe6c5dd omap: mux: Mux Apollon LCD power in board-apollon.c
Use the new mux function for that.

Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:39 +03:00
Tony Lindgren
93c43f2561 omap: mux: Do keypad muxing in board-*.c files
This way we get pin muxing out of plat-omap and can convert H4 to use the
new mux functions.

Note that it should be safe to assume we can mux all the keypad pins
except on H4 which may have Menelaus connected.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:39 +03:00
Tony Lindgren
0d600ff6fe omap: mux: Make omap2 FS USB code use new mux functions
Make omap2 FS USB code use new mux functions. Do not mux usb2_tllse0
as it has multiple options.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:38 +03:00
Tony Lindgren
369ed78fc9 omap: mux: Select POP package for 2430SDP
Select POP package for 2430SDP

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:38 +03:00
Tony Lindgren
bd8f0fc979 omap: mux: Select POP package for N8X0
Select POP package for N8X0

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:38 +03:00
Tony Lindgren
b52b14ef0d omap: mux: Select POP package for Apollon
Select POP package for Apollon

Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:37 +03:00
Tony Lindgren
23275d459e omap: mux: Select SIP package for H4
Select SIP package for H4

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:37 +03:00
Tony Lindgren
89ba109229 omap: mux: Add data for 2430
Add data for 2430. Big thanks to Paul Walmsley <paul@pwsan.com>
for generating usable mux data out of TRMs.

Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:36 +03:00
Tony Lindgren
fc44046167 omap: mux: Add data for 2420
Add data for 2420. Big thanks to Paul Walmsley <paul@pwsan.com>
for generating usable mux data out of TRMs.

Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:36 +03:00
Tony Lindgren
ac1c94fb85 omap: mux: Remove unncessary parens from mux34xx.c
Remove unncessary parens from mux34xx.c

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:36 +03:00
Tony Lindgren
ac3dbeefb8 omap: mux: Allow compiling in new mux code on all mach-omap2 systems
Allow compiling in new mux code on all mach-omap2 systems

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:36 +03:00
Tony Lindgren
6dd8a6824a omap: mux: Renumber package defines to make room for older 24xx packages
Only POP and SIP are known to exist for 2420, 2430 seems to only have
SIP package available.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:35 +03:00
Tony Lindgren
d5425be6eb omap: mux: Fix omap_mux_init_gpio for omap24xx
Looks like 24xx uses mode3 instead of mode4 for muxable GPIO pins.
This will be needed when 24xx mux code is converted to use the new
mux functions.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:35 +03:00
Tony Lindgren
dd0cdd8882 omap: Move omap1 USB platform init code into mach-omap1/usb.c
Move omap1 FS USB platform init code into mach-omap1/usb.c

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:30 +03:00
Tony Lindgren
9809383930 omap: Enable interface clock for omap2 FS USB
Looks like this code was only working on boards that had
the usb_l4_ick enabled in the bootloader.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:29 +03:00
Tony Lindgren
b5e8905bcd omap: Move omap2 FS USB platform init code into mach-omap2/usb-fs.c
Move omap2 FS USB platform init code into mach-omap2/usb-fs.c. This will
allow further work later on to use omap hwmod for initializing the
device.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:29 +03:00
Tony Lindgren
dba638d22d omap: Separate out omap2 FS USB platform init functions
We want to split old FS USB platform init code and stop doing pin multiplexing
under plat-omap. First move 24xx specific init code into omap2_usb[012]_init
functions.

Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-05 16:31:28 +03:00
Peter Zijlstra
b945d6b255 rbtree: Undo augmented trees performance damage and regression
Reimplement augmented RB-trees without sprinkling extra branches
all over the RB-tree code (which lives in the scheduler hot path).

This approach is 'borrowed' from Fabio's BFQ implementation and
relies on traversing the rebalance path after the RB-tree-op to
correct the heap property for insertion/removal and make up for
the damage done by the tree rotations.

For insertion the rebalance path is trivially that from the new
node upwards to the root, for removal it is that from the deepest
node in the path from the to be removed node that will still
be around after the removal.

[ This patch also fixes a video driver regression reported by
  Ali Gholami Rudi - the memtype->subtree_max_end was updated
  incorrectly. ]

Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Ali Gholami Rudi <ali@rudi.ir>
Cc: Fabio Checconi <fabio@gandalf.sssup.it>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1275414172.27810.27961.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-07-05 14:43:50 +02:00
Dominik Brodowski
e4f1ac2122 pcmcia: do not initialize the present flag too late.
The "present" flag was initialized too late -- possibly, a card
was already registered at this time, so re-setting the flag to 0
caused pcmcia_dev_present() to fail.

Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-07-05 12:37:48 +02:00
Thavidu Ranatunga
869599ceda perf: Version String fix, for fallback if not from git
This gets rid of the default version fallback for Perf and
changes it so that it returns the version of the kernel from
it's Makefile (if sources were not from git, ie. if it was
downloaded from a tarball)

Signed-off-by: Thavidu Ranatunga <tharan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1278316815-6099-2-git-send-email-tharan@au1.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-07-05 10:42:58 +02:00
Thavidu Ranatunga
2190de2f59 perf: Version String fix, using kernel version
Changes the Perf --version string such that it shows the kernel
version as suggested by Ingo as follows:

That way the perf that comes with v2.6.34 will be:

  perf version v2.6.34

while interim versions will have the version of the interim
kernel - for example:

 perf version v2.6.35-rc4-70-g39ef13a

This functionality was already in the perf version generator
file except that it was looking for a .git in the perf directory
instead of the kernel directory.

Signed-off-by: Thavidu Ranatunga <tharan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1278316815-6099-1-git-send-email-tharan@au1.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-07-05 10:42:58 +02:00
Hyuk Lee
f50b8bc707 ARM: SAMSUNG: Fix on wrong function name for S5PV210 sdhci0
This patch fixes on wrong function name in include/plat/sdhci.h for Samsung.
The 's5pc100_default_sdhci0()' function should be chnaged to
's5pv210_default_sdhci0()'. Because 's5pv210_default_sdhci0()' must be pair.

Signed-off-by: Hyuk Lee <hyuk1.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-07-05 16:01:04 +09:00
Thomas Abraham
4164acaf09 ARM: S5P6442: Fix PLL setting announce message.
The S5P6442 PLL setting announce message incorrectly displays S5P6440
as the SoC. Change it to S5P6442.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-07-05 16:01:04 +09:00
Marek Szyprowski
6b34f498fe ARM: SAMSUNG: Fix build without SDHCI controllers for S3C64XX
This patch fixes the following compilation problem if only NCP machine
is selected:

arch/arm/mach-s3c64xx/s3c6410.c: In function 's3c6410_map_io':
arch/arm/mach-s3c64xx/s3c6410.c:51: error: implicit declaration of function 's3c6410_default_sdhci2'

And also adds missed 's3c6400_default_sdhci2'.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: minor title fix and added comments]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-07-05 16:01:04 +09:00
MyungJoo Ham
154d62e4cd ARM: S5PV210: Correct clock register properties
1. Corrected shift values of I2S and UART clocks (CLK_GATE_IP3), which were
defined incorrectly.

2. Corrected shift values of sclk_audio, uclk1, sclk_fimd, sclk_mmc,
sclk_spi, sclk_pwm, which had duplicated .enable/.ctrlbit with their
twins defined in struct clk init_clocks_disable[] and struct clk
init_clocks[]. We've changed their .enable/.ctrlbit to use CLK_SRC_MASK
register to avoid the duplicated clock problem described below.

NOTE: Duplicated Clock Problem
Please note that each clock definition should access different control
register; otherwise, the system may suffer lockups. For example, if we
have two clock definitions "a" and "b" which access the same register
(and the shift value). Then, when we do:

	module A
	clk = clk_get("a");
	clk->clk_enable(clk);

	module B (context switch)
	clk = clk_get("b");
	clk->clk_enable(clk);
	do something with clk.
	clk->clk_disable(clk);

	module A (context switch)
	do something with clk
	* At this point, the system may hang.

Therefore, there should be no clock definitions with the same contol
register/shift. If we need to create "aliases", then, creating child
clocks sharing the clock should be fine.

3. Corrected other sclk_* shift values and access registers.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: minor title and message fix]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-07-05 16:01:04 +09:00
Boojin Kim
79fc72d6d3 ARM: S5P: Bug fix on external interrupt for S5P SoCs
This patch fixes bug on eint type set function, s5p_irq_eint_set_type().
In the IRQ_TYPE_EDGE_FALLING case, S5P_EXTINT_FALLEDGE is right
instead of S5P_EXTINT_RISEEDGE

Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-07-05 16:01:04 +09:00
Linus Torvalds
815c4163b6 Linux 2.6.35-rc4 2010-07-04 20:22:50 -07:00
Linus Torvalds
71665963af Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6205/1: perf: ensure counter delta is treated as unsigned
  ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L210/L220
  ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220
  ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU
  ARM: 6194/1: change definition of cpu_relax() for ARM11MPCore
  ARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section
  ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section
  ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround
  ARM: 6187/1: The v6_dma_inv_range() function must preserve data on SMP
  ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds
  ARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI
  [ARM] mmp: fix build failure due to IRQ_PMU depends on ARCH_PXA
  [ARM] pxa/mioa701: fix camera regression
  [ARM] pxa/z2: fix flash layout to final version
  [ARM] pxa/z2: fix missing include in battery driver
  [ARM] pxa: fix incorrect gpio type in udc_pxa2xx.h
2010-07-04 20:21:39 -07:00
Linus Torvalds
3f7d7b4bde Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf, x86: Fix incorrect branches event on AMD CPUs
  perf tools: Fix find tids routine by excluding "." and ".."
  x86: Send a SIGTRAP for user icebp traps
2010-07-04 20:20:53 -07:00
Yehuda Sadeh
ff49d74ad3 module: initialize module dynamic debug later
We should initialize the module dynamic debug datastructures
only after determining that the module is not loaded yet. This
fixes a bug that introduced in 2.6.35-rc2, where when a trying
to load a module twice, we also load it's dynamic printing data
twice which causes all sorts of nasty issues. Also handle
the dynamic debug cleanup later on failure.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (removed a #ifdef)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-04 20:17:22 -07:00
Linus Torvalds
e3668dd83b Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: remove block number from inode lookup code
  xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED
  xfs: validate untrusted inode numbers during lookup
  xfs: always use iget in bulkstat
  xfs: prevent swapext from operating on write-only files
2010-07-04 20:13:31 -07:00
Linus Torvalds
744c557892 Merge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  of/dma: fix build breakage in ppc4xx adma driver
2010-07-04 20:12:31 -07:00
Linus Torvalds
62fd985717 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core:
  MAINTAINERS: Add an entry for i7core_edac
  i7core_edac: Avoid doing multiple probes for the same card
  i7core_edac: Properly discover the first QPI device
2010-07-04 20:12:06 -07:00
Linus Torvalds
4045044701 Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kbuild: Propagate LOCALVERSION= down to scripts/setlocalversion
  kbuild: Clean up and speed up the localversion logic
2010-07-04 19:55:23 -07:00
Will Deacon
446a5a8b1e ARM: 6205/1: perf: ensure counter delta is treated as unsigned
Hardware performance counters on ARM are 32-bits wide but atomic64_t
variables are used to represent counter data in the hw_perf_event structure.

The armpmu_event_update function right-shifts a signed 64-bit delta variable
and adds the result to the event count. This can lead to shifting in sign-bits
if the MSB of the 32-bit counter value is set. This results in perf output
such as:

 Performance counter stats for 'sleep 20':

 18446744073460670464  cycles             <-- 0xFFFFFFFFF12A6000
        7783773  instructions             #      0.000 IPC
            465  context-switches
            161  page-faults
        1172393  branches

   20.154242147  seconds time elapsed

This patch ensures that the delta value is treated as unsigned so that the
right shift sets the upper bits to zero.

Cc: <stable@kernel.org>
Acked-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-04 23:11:37 +01:00
Peter Kosyh
44b451f163 xfrm: fix xfrm by MARK logic
While using xfrm by MARK feature in
2.6.34 - 2.6.35 kernels, the mark
is always cleared in flowi structure via memset in
_decode_session4 (net/ipv4/xfrm4_policy.c), so
the policy lookup fails.
IPv6 code is affected by this bug too.

Signed-off-by: Peter Kosyh <p.kosyh@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-04 11:46:07 -07:00
Vince Weaver
f287d332ce perf, x86: Fix incorrect branches event on AMD CPUs
While doing some performance counter validation tests on some
assembly language programs I noticed that the "branches:u"
count was very wrong on AMD machines.

It looks like the wrong event was selected.

Signed-off-by: Vince Weaver <vweaver1@eecs.utk.edu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: <stable@kernel.org>
LKML-Reference: <alpine.DEB.2.00.1007011526010.23160@cl320.eecs.utk.edu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-07-03 15:19:34 +02:00
David S. Miller
8bd39456bd Merge branch 'vhost-net' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost 2010-07-02 22:29:22 -07:00
Rusty Russell
58eba97d07 virtio_net: fix oom handling on tx
virtio net will never try to overflow the TX ring, so the only reason
add_buf may fail is out of memory. Thus, we can not stop the
device until some request completes - there's no guarantee anything
at all is outstanding.

Make the error message clearer as well: error here does not
indicate queue full.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (...and avoid TX_BUSY)
Cc: stable@kernel.org  # .34.x (s/virtqueue_/vi->svq->vq_ops->/)
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 22:27:26 -07:00
Michael S. Tsirkin
1788f49548 virtio_net: do not reschedule rx refill forever
We currently fill all of RX ring, then add_buf
returns ENOSPC, which gets mis-detected as an out of
memory condition and causes us to reschedule the work,
and so on forever. Fix this by oom = err == -ENOMEM;

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org # .34.x
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 22:27:25 -07:00
Jon Mason
4a49043223 s2io: resolve statistics issues
This patch resolves a number of issues in the statistics gathering of
the s2io driver.

On Xframe adapters, the received multicast statistics counter includes
pause frames which are not indicated to the driver.  This can cause
issues where the multicast packet count is higher than what has actually
been received, possibly higher than the number of packets received.

The driver software counters are replaced with the adapter hardware
statistics for rx_packets, rx_bytes, and tx_bytes.  It also uses the
overflow registers to determine if the statistics wrapped the 32bit
register (removing the window of having a statistic value less than the
previous call).  rx_length_errors statistic now includes undersized
packets in addition to oversized packets in its counting.  Finally,
rx_crc_errors are now being counted.

Signed-off-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 22:27:25 -07:00