GitHub/moto-9609/android_kernel_motorola_exynos9610.git
14 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Tue, 21 Sep 2010 19:49:14 +0000 (15:49 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next-2.6 into for-davem

Conflicts:
arch/arm/mach-omap2/board-omap3pandora.c
drivers/net/wireless/ath/ath5k/base.c

14 years agoath9k: make the driver specific rate control module optional
Felix Fietkau [Mon, 20 Sep 2010 11:45:40 +0000 (13:45 +0200)]
ath9k: make the driver specific rate control module optional

ath9k can use minstrel_ht instead, so it makes sense to save some space here.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: move ath_tx_aggr_check() to the rate control module
Felix Fietkau [Mon, 20 Sep 2010 11:45:39 +0000 (13:45 +0200)]
ath9k: move ath_tx_aggr_check() to the rate control module

It is not used anywhere else and can be made static

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: clean up / fix aggregation session flush
Felix Fietkau [Mon, 20 Sep 2010 11:45:38 +0000 (13:45 +0200)]
ath9k: clean up / fix aggregation session flush

The tid aggregation cleanup is a bit fragile, as it discards failed
subframes in some places, and retransmits them in others. This could
block the cleanup of an existing aggregation session, if a retransmission
for a tid is issued, yet the tid is never scheduled again because of
the cleanup state.

Fix this by getting rid of as many subframes as possible, as early
as possible, and immediately transmitting pending subframes as regular
HT frames instead of waiting for the cleanup to complete.

Drop all pending subframes while keeping track of the Block ACK window
during aggregate tx completion to prevent sending out stale subframes,
which could confuse the receiver side.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: fix an aggregation start related race condition
Felix Fietkau [Mon, 20 Sep 2010 17:35:28 +0000 (19:35 +0200)]
ath9k: fix an aggregation start related race condition

A new aggregation session start can be issued by mac80211, even when the
cleanup of the previous session has not completed yet. Since the data structure
for the session is not recreated, this could corrupt the block ack window
and lock up the aggregation session. Fix this by delaying the new session
until the old one has been cleaned up.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: clean up block ack window handling
Felix Fietkau [Mon, 20 Sep 2010 11:45:36 +0000 (13:45 +0200)]
ath9k: clean up block ack window handling

There's no reason to keep pointers to pending tx buffers around, if they're
only used to keep track of which frames are still pending. Use a bitfield
instead.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl1271: bugfix: use bitwise-AND instead of logical-AND
Eliad Peller [Sun, 19 Sep 2010 16:55:09 +0000 (18:55 +0200)]
wl1271: bugfix: use bitwise-AND instead of logical-AND

typo - while looking for specific bits we should do a bitwise-AND instead of logical-AND.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl1271: avoid redundant memcpy of rx_status
Eliad Peller [Sun, 19 Sep 2010 16:55:08 +0000 (18:55 +0200)]
wl1271: avoid redundant memcpy of rx_status

copy the rx_status directly to skb->cb (control buffer) instead of copying
it to a local struct and then copying it again (for each rx packet)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: fix hang in AP mode when HT STA does PSM
Christian Lamparter [Fri, 17 Sep 2010 22:15:13 +0000 (00:15 +0200)]
carl9170: fix hang in AP mode when HT STA does PSM

This is a obvious bug, skb_queue_walk does not
work if the iterator gets removed from the queue.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: reinit phy after HT settings have changed
Christian Lamparter [Fri, 17 Sep 2010 21:09:19 +0000 (23:09 +0200)]
carl9170: reinit phy after HT settings have changed

The driver has a set of different initvals for 20 MHz
vs dynamic HT2040 operation. Because we can't change
some of the registers "in-flight", the driver needs to
perform a warm reset.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: fix state downgrade during reset
Christian Lamparter [Fri, 17 Sep 2010 20:58:40 +0000 (22:58 +0200)]
carl9170: fix state downgrade during reset

Don't mark the device as completely dead just yet.
If all goes to plan and carl9170_reboot succeeds
then we can skip the expensive userspace-driven
reinitialization anyway.

And if it doesn't and carl9170_reboot fails,
then carl9170_usb_cancel_urbs will do the
necessary steps.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: abort tasklet during usb reset
Christian Lamparter [Fri, 17 Sep 2010 20:47:28 +0000 (22:47 +0200)]
carl9170: abort tasklet during usb reset

This patch prevents the tasklet code from
interfering while the firmware is down for
an unscheduled maintenance.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: don't load bogus nf of chain 1
Christian Lamparter [Fri, 17 Sep 2010 20:42:37 +0000 (22:42 +0200)]
carl9170: don't load bogus nf of chain 1

According to Atheros, chain 1 is not connected.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: fix noise dBm conversion
Christian Lamparter [Fri, 17 Sep 2010 20:22:50 +0000 (22:22 +0200)]
carl9170: fix noise dBm conversion

Ever since carl9170 gained support to read the noisefloor,
the reported noisefloor level was pretty poor.

Initially I assumed that something was wrong in the PHY
setup and it would be impossible to fix without any
guidances. But this was not the case. In fact the nf
readings were correct and the thing that was broken
was the "simple" sign extension code!

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: use rx chainmask from eeprom
Christian Lamparter [Fri, 17 Sep 2010 20:07:59 +0000 (22:07 +0200)]
carl9170: use rx chainmask from eeprom

The eeprom provides a mask for all present rx chains.
Why not use it instead of the generic initval default?

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Add tx queue configuration function
Bruno Randolf [Fri, 17 Sep 2010 02:37:18 +0000 (11:37 +0900)]
ath5k: Add tx queue configuration function

Add the mac80211 callback function to configure the tx queue properties like
cw_min, cw_max and aifs.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Simplify cw_min/max and AIFS configuration
Bruno Randolf [Fri, 17 Sep 2010 02:37:12 +0000 (11:37 +0900)]
ath5k: Simplify cw_min/max and AIFS configuration

Get rid of overly complicated cw_min/max and AIFS configuration:

* Validate values in ath5k_hw_set_tx_queueprops(), so we can use them directly
  without further checks or computation in ath5k_hw_reset_tx_queue().

* Simplifiy by using AR5K_TUNE_AIFS|CWMIN|CWMAX variables directly since we
  don't support XR or B channels. That way we can also remove
  AR5K_TXQ_USEDEFAULT and the confusing logic around it.

* Update data types: AIFS is u8, CW's are u16.

* Remove now unneeded variables in ath5k_hw.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Keep last descriptor in queue
Bruno Randolf [Fri, 17 Sep 2010 02:37:07 +0000 (11:37 +0900)]
ath5k: Keep last descriptor in queue

If we return a TX descriptor to the pool of available descriptors, while a
queues TXDP still points to it we could potentially run into all sorts of
troube.

It has been suggested that there is hardware which can set the descriptors
done bit before it reads ds_link and moves on to the next descriptor. While the
documentation says this is not true for newer chipsets (the descriptor contents
are copied to some internal memory), we don't know about older hardware.

To be safe, we always keep the last descriptor in the queue, and avoid dangling
TXDP pointers. Unfortunately this does not fully resolve the problem - queues
still get stuck!

This is similar to what ath9k does.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Count how many times a queue got stuck
Bruno Randolf [Fri, 17 Sep 2010 02:37:02 +0000 (11:37 +0900)]
ath5k: Count how many times a queue got stuck

Add a counter to show how many times a queue got stuck in the debugfs queue
file.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Add watchdog for stuck TX queues
Bruno Randolf [Fri, 17 Sep 2010 02:36:56 +0000 (11:36 +0900)]
ath5k: Add watchdog for stuck TX queues

Since we do not know any better solution to the problem that TX queues can get
stuck, this adds a timer-based watchdog, which will check for stuck queues and
reset the hardware if necessary.

Ported from ath9k commit 164ace38536849966ffa377b1b1132993a5a375d.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Move tx frame completion into separate function
Bruno Randolf [Fri, 17 Sep 2010 02:36:51 +0000 (11:36 +0900)]
ath5k: Move tx frame completion into separate function

Clearer separation between queue handling and what we do with completed frames.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Fix TX queues stopping
Bruno Randolf [Fri, 17 Sep 2010 02:36:46 +0000 (11:36 +0900)]
ath5k: Fix TX queues stopping

It does not make sense to stop queues for NF calibration. This will not stop
transmissions from the card, if there are queued packets.

If we run out of TX buffers we need to stop all queues, not only one.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Fix queue debug file
Bruno Randolf [Fri, 17 Sep 2010 02:36:40 +0000 (11:36 +0900)]
ath5k: Fix queue debug file

Take txq lock in debug file and fix reporting of used buffers.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Use four hardware queues
Bruno Randolf [Fri, 17 Sep 2010 02:36:35 +0000 (11:36 +0900)]
ath5k: Use four hardware queues

Prepare ath5k for WME by using four hardware queues.

The way we set up our queues matches the mac80211 queue priority 1:1, so we
don't have to do any mapping for queue numbers.

Every queue uses 50 of the total 200 available transmit buffers, so the DMA
memory usage does not increase with this patch, but it might be good to
fine-tune the number of buffers per queue later (depending on the CPU speed and
load, and the speed of the medium access, it might not be big enough).

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: reorder base.c to remove fwd decls
Bob Copeland [Fri, 17 Sep 2010 03:45:07 +0000 (12:45 +0900)]
ath5k: reorder base.c to remove fwd decls

This change reorganizes the main ath5k file in order to re-group
related functions and remove most of the forward declarations
(from 61 down to 3).  This is, unfortunately, a lot of churn, but
there should be no functional changes.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath/ath5k/ath9k: Fix crypto capabilities merge issue
Bruno Randolf [Fri, 17 Sep 2010 02:36:25 +0000 (11:36 +0900)]
ath/ath5k/ath9k: Fix crypto capabilities merge issue

Fixing up a merge issue / concurrent development:

Remove unneeded ath_crypt_caps flags, as per "ath9k_hw: remove useless hw
capability flags" (364734fafbba0c3133e482db78149b9a823ae7a5), but set the
AESCCM flag for ath9k. common ath code still needs a flag for this because
there is ath5k hardware which can't do AES in hardware.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocarl9170: update AR9170 phy initvals
Christian Lamparter [Thu, 16 Sep 2010 20:55:20 +0000 (22:55 +0200)]
carl9170: update AR9170 phy initvals

This patch is loosely based on an ath9k patch called:
"ath9k_hw: sync initvals for ar9001 and ar9002 with Atheros"

It includes the following changes/fixes:
- AGC setting improvements
- timing changes for improved performance

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoomap: zoom: add mmc3/wl1271 device support
Ohad Ben-Cohen [Wed, 15 Sep 2010 23:32:30 +0000 (01:32 +0200)]
omap: zoom: add mmc3/wl1271 device support

Add MMC3 support on ZOOM, which has the wl1271 device hardwired to.

The wl1271 is a 4-wire, 1.8V, embedded SDIO WLAN device with an
external IRQ line, and power-controlled by a GPIO-based fixed regulator.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoomap: zoom: add fixed regulator device for wlan
Ohad Ben-Cohen [Wed, 15 Sep 2010 23:32:09 +0000 (01:32 +0200)]
omap: zoom: add fixed regulator device for wlan

Add a fixed regulator vmmc device to enable power control
of the wl1271 wlan device.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl1271: make ref_clock configurable by board
Ohad Ben-Cohen [Wed, 15 Sep 2010 23:31:51 +0000 (01:31 +0200)]
wl1271: make ref_clock configurable by board

The wl1271 device is using a reference clock that may change
between board to board.

Make the ref_clock parameter configurable by board settings
instead of having a hard coded value in the sources.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl1271: take irq info from private board data
Ohad Ben-Cohen [Wed, 15 Sep 2010 23:31:35 +0000 (01:31 +0200)]
wl1271: take irq info from private board data

Remove the hard coded irq information, and instead take
the irq information from the board's platform data.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl12xx: add platform data passing support
Ohad Ben-Cohen [Wed, 15 Sep 2010 23:31:12 +0000 (01:31 +0200)]
wl12xx: add platform data passing support

Add a simple mechanism to pass platform data to the
SDIO instances of wl12xx.

This way there is no confusion over who owns the 'embedded data',
typechecking is preserved, and no possibility for the wrong driver to
pick up the data.

Originally proposed by Russell King.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl1271: propagate set_power's return value
Ohad Ben-Cohen [Wed, 15 Sep 2010 23:22:04 +0000 (01:22 +0200)]
wl1271: propagate set_power's return value

Make it possible for the set power method to indicate a
success/failure return value. This is needed to support
more complex power on/off operations such as SDIO
power manipulations.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agowl12xx: make wl12xx.h common to both spi and sdio
Ohad Ben-Cohen [Thu, 16 Sep 2010 11:16:02 +0000 (13:16 +0200)]
wl12xx: make wl12xx.h common to both spi and sdio

Move wl12xx.h outside of the spi-specific location,
so it can be shared with both spi and sdio solutions.

Update all users of spi/wl12xx.h accordingly

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agobridge : Sanitize skb before it enters the IP stack
Bandan Das [Sun, 19 Sep 2010 09:34:33 +0000 (09:34 +0000)]
bridge : Sanitize skb before it enters the IP stack

Related dicussion here : http://lkml.org/lkml/2010/9/3/16

Introduce a function br_parse_ip_options that will audit the
skb and possibly refill IP options before a packet enters the
IP stack. If no options are present, the function will zero out
the skb cb area so that it is not misinterpreted as options by some
unsuspecting IP layer routine. If packet consistency fails, drop it.

Signed-off-by: Bandan Das <bandan.das@stratus.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agords: spin_lock_irq() is not nestable
Dan Carpenter [Sat, 18 Sep 2010 13:44:14 +0000 (13:44 +0000)]
rds: spin_lock_irq() is not nestable

This is basically just a cleanup.  IRQs were disabled on the previous
line so we don't need to do it again here.  In the current code IRQs
would get turned on one line earlier than intended.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agords: double unlock in rds_ib_cm_handle_connect()
Dan Carpenter [Sat, 18 Sep 2010 13:42:59 +0000 (13:42 +0000)]
rds: double unlock in rds_ib_cm_handle_connect()

We unlock after we goto out.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agords: signedness bug
Dan Carpenter [Sat, 18 Sep 2010 13:42:25 +0000 (13:42 +0000)]
rds: signedness bug

In the original code if the copy_from_user() fails in rds_rdma_pages()
then the error handling fails and we get a stack trace from kmalloc().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobna: off by one
Dan Carpenter [Sun, 19 Sep 2010 18:25:54 +0000 (11:25 -0700)]
bna: off by one

The mod->mbhdlr[] array has BFI_MC_MAX elements.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: reorder struct netdev_hw_addr
Eric Dumazet [Sun, 19 Sep 2010 18:24:02 +0000 (11:24 -0700)]
net: reorder struct netdev_hw_addr

Move 'synced' and 'global_use' fields before 'refcount', to shrinks
struct netdev_hw_addr by 8 bytes (on 64bit arches).

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobonding: enable gro by default
Eric Dumazet [Fri, 17 Sep 2010 09:25:07 +0000 (09:25 +0000)]
bonding: enable gro by default

gro can be enabled by default on bonding devices.

Actual support depends on the lower devices.

One can still use ethtool to switch off GRO if needed.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoethtool: Add comments for valid use of flow types
Ben Hutchings [Thu, 16 Sep 2010 11:34:26 +0000 (11:34 +0000)]
ethtool: Add comments for valid use of flow types

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoethtool, ixgbe: Move RX n-tuple mask fixup to ethtool
Ben Hutchings [Thu, 16 Sep 2010 11:28:07 +0000 (11:28 +0000)]
ethtool, ixgbe: Move RX n-tuple mask fixup to ethtool

The ethtool utility does not set masks for flow parameters that are
not specified, so if both value and mask are 0 then this must be
treated as equivalent to a mask with all bits set.  Currently that is
done in the only driver that implements RX n-tuple filtering, ixgbe.
Move it to the ethtool core.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetns: keep vlan slaves on master netns move
David Lamparter [Fri, 17 Sep 2010 03:22:19 +0000 (03:22 +0000)]
netns: keep vlan slaves on master netns move

previously, if a vlan master device was moved from one network namespace
to another, all 802.1q and macvlan slaves were deleted.

we can use dev->reg_state to figure out whether dev_change_net_namespace
is happening, since that won't set dev->reg_state NETREG_UNREGISTERING.
so, this changes 8021q and macvlan to ignore NETDEV_UNREGISTER when
reg_state is not NETREG_UNREGISTERING.

Signed-off-by: David Lamparter <equinox@diac24.net>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Daniel Lezcano <daniel.lezcano@free.fr>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agostmmac: use one memset() to reset TDES01
Giuseppe CAVALLARO [Fri, 17 Sep 2010 03:23:42 +0000 (03:23 +0000)]
stmmac: use one memset() to reset TDES01

Use one memset() to reset all TDES01 fields instead
of one by one to reduce number of instructions.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agostmmac: prevent dma init stuck in case of failures.
Giuseppe CAVALLARO [Fri, 17 Sep 2010 03:23:41 +0000 (03:23 +0000)]
stmmac: prevent dma init stuck in case of failures.

Add a limit when perform the DMA reset procedure
so, in case of problems (i.e. PHY reset failed) the
Kernel won't hang on the stmmac DMA initialisation
blocking the Kernels execution.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agostmmac: consolidate and tidy-up the COE support
Giuseppe CAVALLARO [Fri, 17 Sep 2010 03:23:40 +0000 (03:23 +0000)]
stmmac: consolidate and tidy-up the COE support

The first version of the driver had hard-coded the logic
for handling the checksum offloading.
This was designed according to the chips included in
the STM platforms where:
o MAC10/100 supports no COE at all.
o GMAC fully supports RX/TX COE.

This is not good for other chip configurations where,
for example, the mac10/100 supports the tx csum in HW
or when the GMAC has no IPC.

Thanks to Johannes Stezenbach; he provided me a first
draft of this patch that only reviewed the IPC for the
GMAC devices.

This patch also helps on SPEAr platforms where the
MAC10/100 can perform the TX csum in HW.
Thanks to Deepak SIKRI for his support on this.

In the end, GMAC devices for STM platforms have
a bugged Jumbo frame support that needs to have
the Tx COE disabled for oversized frames (due to
limited buffer sizes). This information is also
passed through the driver's platform structure.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Deepak SIKRI <deepak.sikri@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agostmmac: add CSR Clock range selection
Giuseppe CAVALLARO [Fri, 17 Sep 2010 03:23:39 +0000 (03:23 +0000)]
stmmac: add CSR Clock range selection

This patch adds the CSR Clock range selection.

Original patch from Johannes Stezenbach fixed the CSR
in the stmmac_mdio. We agreed to provide this through
the platform instead of.
Also thanks to Johannes for having tested it on ARM.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoiwlagn: initialize both tx/rx prio boost parameters
Wey-Yi Guy [Mon, 13 Sep 2010 15:08:18 +0000 (08:08 -0700)]
iwlagn: initialize both tx/rx prio boost parameters

For config bt command, initialize both tx_prio_boost and
rx_prio_boost to "0".

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: minor coex API changes
Wey-Yi Guy [Mon, 13 Sep 2010 14:51:03 +0000 (07:51 -0700)]
iwlagn: minor coex API changes

Adding two new parameters in config bt API. these two parameters
use the 3 reserved bytes, so there is no structure size changes.

Make sure set both parameters to "zero" in order to preserve
previous behavior.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: correct naming for failure reply tx status
Wey-Yi Guy [Tue, 7 Sep 2010 19:42:20 +0000 (12:42 -0700)]
iwlagn: correct naming for failure reply tx status

For failure tx status 0x90 and 0x91, give the correct name to reflect
the errors.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlwifi: corrections to debug output of ucode statistics
Jay Sternberg [Wed, 8 Sep 2010 16:42:35 +0000 (09:42 -0700)]
iwlwifi: corrections to debug output of ucode statistics

remove duplicate header and clean up format so it is defined once
making changes consolicated ensuring consistancy of output.
no function change to date displayed.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: adding aggregated frame failure status to debugfs
Wey-Yi Guy [Sun, 5 Sep 2010 17:49:45 +0000 (10:49 -0700)]
iwlagn: adding aggregated frame failure status to debugfs

Addition to standard tx frame failure report, adding aggregated
frame failure report to debugfs

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: keep track of aggregated tx frames failure counter
Wey-Yi Guy [Sun, 5 Sep 2010 17:49:44 +0000 (10:49 -0700)]
iwlagn: keep track of aggregated tx frames failure counter

When uCode completed the aggregated frames transmission attempt,
it will send tx command response with aggregated frame status.

Keep track of the failure counter which help indicate any transmission
error condition.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: log aggregation tx command status
Wey-Yi Guy [Sun, 5 Sep 2010 17:49:43 +0000 (10:49 -0700)]
iwlagn: log aggregation tx command status

For aggregated frames with block ack, different status flag
will be used as part of tx command response.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: keep track of failure tx status
Wey-Yi Guy [Sun, 5 Sep 2010 17:49:42 +0000 (10:49 -0700)]
iwlagn: keep track of failure tx status

Tx command response sent to host by uCode after completed
the transmission attempt. The status parameter indicates
whether the transmission was successful, or else why if failed.

Here we keep the counters to help understand the different failure
cases.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: keep track fail tx reason counter
Wey-Yi Guy [Sun, 5 Sep 2010 17:49:41 +0000 (10:49 -0700)]
iwlagn: keep track fail tx reason counter

If uCode fail to transmit frame, it will send reply tx back
to driver with failure status; keep the counters of each failure
cases for debugging.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoiwlagn: add bt_status_read for 5150
Wey-Yi Guy [Sun, 5 Sep 2010 17:49:38 +0000 (10:49 -0700)]
iwlagn: add bt_status_read for 5150

Include bt_status_read function pointer for 5150 device

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
14 years agoethtool: change ethtool_set_gro() to use ethtool_op_get_rx_csum
Eric Dumazet [Fri, 17 Sep 2010 18:56:18 +0000 (11:56 -0700)]
ethtool: change ethtool_set_gro() to use ethtool_op_get_rx_csum

To be able to switch on GRO on a device, ethtool_set_gro() checks this
device provides a get_rx_csum() method.

Some devices dont provide this method, while they do support RX
checksumming.

This patch allows bonding to support GRO :

ethtool -K bond0 gro on

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoqlcnic: update version 5.0.10
Amit Kumar Salecha [Thu, 16 Sep 2010 19:14:43 +0000 (19:14 +0000)]
qlcnic: update version 5.0.10

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoqlcnic: remove fw version check
Amit Kumar Salecha [Thu, 16 Sep 2010 19:14:42 +0000 (19:14 +0000)]
qlcnic: remove fw version check

Don't compare flash and file fw version. Allow to load
old fw from file than flashed fw.
If file fw is present, don't skip fw re-intialization.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoqlcnic: vlan lro support
Amit Kumar Salecha [Thu, 16 Sep 2010 19:14:41 +0000 (19:14 +0000)]
qlcnic: vlan lro support

LRO + GRO + vlan rx accleration support, performance increases
around 20% and cpu utilization reduces around 70% on vlan interface.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoqlcnic: vlan gro support
Amit Kumar Salecha [Thu, 16 Sep 2010 19:14:40 +0000 (19:14 +0000)]
qlcnic: vlan gro support

GRO support + vlan rx accleration, boost around 9%
performance and reduces 25% of cpu utilization on vlan
interface.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoqlcnic: support vlan rx accleration
Amit Kumar Salecha [Thu, 16 Sep 2010 19:14:39 +0000 (19:14 +0000)]
qlcnic: support vlan rx accleration

Implemented vlan rx accleration in driver.
This helps in increasing significant performance and
reduces cpu utilization with GRO and LRO.

Eric Dumazet:
"Its a bit strange you use dev_kfree_skb_any(skb) here."
"We run in NAPI mode, so you can use dev_kfree_skb()."
Amit:
Done. Using dev_kfree_skb();

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agodrivers/net/tulip/de4x5.c: fix union member name in DE4X5_GET_REG ioctl
Dan Rosenberg [Fri, 17 Sep 2010 05:34:26 +0000 (22:34 -0700)]
drivers/net/tulip/de4x5.c: fix union member name in DE4X5_GET_REG ioctl

This was previously reported as a security issue due to leakage of
uninitialized stack memory.  Jeff Mahoney pointed out that this is
incorrect since the copied data is from a union (rather than a struct).
Therefore, this patch is only under consideration for the sake of
correctness, and is not security relevant.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: shrinks struct net_device
Eric Dumazet [Thu, 16 Sep 2010 02:58:13 +0000 (02:58 +0000)]
net: shrinks struct net_device

commit ab95bfe01 (net: replace hooks in __netif_receive_skb) added
rx_handler at wrong place, between two cache line aligned objects,
creating a big hole (a full cache line)

Move rx_handler and rx_handler_data before rx_queue, filling existing
hole.

Move master field in the cache line(s) used in receive path.

This saves 64 bytes (or L1_CACHE_BYTES), and avoids two possible
cache misses in receive path.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoip6tnl: get rid of ip6_tnl_lock
Eric Dumazet [Wed, 15 Sep 2010 20:25:34 +0000 (20:25 +0000)]
ip6tnl: get rid of ip6_tnl_lock

As RTNL is held while doing tunnels inserts and deletes, we can remove
ip6_tnl_lock spinlock. My initial RCU conversion was conservative and
converted the rwlock to spinlock, with no RTNL requirement.

Use appropriate rcu annotations and modern lockdep checks as well.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: include inetdevice.h for rcu_dereference_raw api change
Stephen Rothwell [Fri, 17 Sep 2010 04:39:16 +0000 (21:39 -0700)]
net: include inetdevice.h for rcu_dereference_raw api change

rcu_dereference_raw() now needs to know the type of its argument.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoath9k: fix regression which disabled ps on ath9k
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:36 +0000 (15:12 -0400)]
ath9k: fix regression which disabled ps on ath9k

The patch titled "ath9k: Add new file init.c" shuffled some code
around but in dong so for some reason also removed the revision
check for disablign power save. Add this revision check again
so we can get power save re-enabled again by default on cards
newer than AR5416 and AR5418.

$ git describe --contains 556242049cc3992d0ee625e9f15c4b00ea4baac8
v2.6.34-rc1~233^2~49^2~343

This patch has fixes for stable kernels [2.6.34+].

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: fix regression which prevents chip sleep after CAB data
Senthil Balasubramanian [Thu, 16 Sep 2010 19:12:35 +0000 (15:12 -0400)]
ath9k: fix regression which prevents chip sleep after CAB data

The patch:

commit 293dc5dfdbcc16cde06e40a688394cc8ab083e48
Author: Gabor Juhos <juhosg@openwrt.org>
Date:   Fri Jun 19 12:17:48 2009 +0200

    ath9k: remove ath_rx_ps_back_to_sleep helper

    This helper only clears the SC_OP_WAIT_FOR_{BEACON,CAB} flags.
    Remove it and clear these flags directly in the approptiate
    places instead.

    Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
introduced a regression which forgot to lift the beacon flag
after we received all broadcast and multicast data. This meant
we never went to sleep consuming about ~650mW on idle. This pretty
much broke power save completely.

This patch has fixes for stable kernels [2.6.32+].

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Sameer Nanda <snanda@google.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: send last 3/5 probe requests as unicast
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:34 +0000 (15:12 -0400)]
mac80211: send last 3/5 probe requests as unicast

Some buggy APs do not respond to unicast probe requests
or send unicast probe requests very delayed so in the
worst case we should try to send broadcast probe requests,
otherwise we can get disconnected from these APs.

Even if drivers do not have filters to disregard probe
responses from foreign APs mac80211 will only process
probe responses from our associated AP for re-arming
connection monitoring.

We need to do this since the beacon monitor does not
push back the connection monitor by design so even if we
are getting beacons from these type of APs our connection
monitor currently relies heavily on the way the probe
requests are received on the AP. An example of an AP
affected by this is the Nexus One, but this has also been
observed with random APs.

We can probably optimize this later by using null funcs
instead of probe requests.

For more details refer to:

http://code.google.com/p/chromium-os/issues/detail?id=5715

This patch has fixes for stable kernels [2.6.35+].

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: disable beacon monitor while going offchannel
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:33 +0000 (15:12 -0400)]
mac80211: disable beacon monitor while going offchannel

The beacon monitor should be disabled when going off channel
to prevent spurious warnings and triggering connection
deterioration work such as sending probe requests. Re-enable
the beacon monitor once we come back to the home channel.

This patch has fixes for stable kernels [2.6.34+].

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: make the beacon monitor available externally
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:32 +0000 (15:12 -0400)]
mac80211: make the beacon monitor available externally

This will be used by other components next. The beacon
monitor was added as of 2.6.34 so these fixes are applicable
only to kernels >= 2.6.34.

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: reset connection idle when going offchannel
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:31 +0000 (15:12 -0400)]
mac80211: reset connection idle when going offchannel

When we go offchannel mac80211 currently leaves alive the
connection idle monitor. This should be instead postponed
until we come back to our home channel, otherwise by the
time we get back to the home channel we could be triggering
unecesary probe requests. For APs that do not respond to
unicast probe requests (Nexus One is a simple example) this
means we essentially get disconnected after the probes
fails.

This patch has stable fixes for kernels [2.6.35+]

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: reset probe send counter upon connection timer reset
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:30 +0000 (15:12 -0400)]
mac80211: reset probe send counter upon connection timer reset

Upon beacon loss we send probe requests after 30 seconds of idle
time and we wait for each probe response 1/2 second. We send a
total of 3 probe requests before giving up on the AP. In the case
that we reset the connection idle monitor we should reset the probe
requests count to 0. Right now this won't help in any way but
the next patch will.

This patch has fixes for stable kernel [2.6.35+].

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: add helper for reseting the connection monitor
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:29 +0000 (15:12 -0400)]
mac80211: add helper for reseting the connection monitor

This will be used in another place later. The connection
monitor was added as of 2.6.35 so these fixes will be
applicable to >= 2.6.35.

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: fix enabling ANI / tx monitor after bg scan
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:28 +0000 (15:12 -0400)]
ath9k: fix enabling ANI / tx monitor after bg scan

ath9k's entire logic with SC_OP_SCANNING is incorrect due to the
way mac80211 currently implements the scan complete callback and
we handle it in ath9k. This patch removes the flag completely in
preference for the SC_OP_OFFCHANNEL which is really what we wanted.

The scanning flag was used to ensure we reset ANI to the old values
when we go back to the home channel, but if we are offchannel we
use some defaults. The flag was also used to re-enable the TX monitor.

Without this patch we simply never re-enabled ANI and the TX monitor
after going offchannel. This means that after one background
scan we are prone to noise issues and if we had a TX hang we would
not recover. To get this to work properly we must enable ANI after
we have configured the beacon timers, otherwise hardware acts really
oddly.

This patch has stable fixes which apply down to [2.6.36+], there
*may* be a to fix this on older kernels but requires a bit of
work since this patch relies on the new mac80211 flag
IEEE80211_CONF_OFFCHANNEL which was introduced as of 2.6.36.

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: fix regression on beacon loss after bgscan
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:27 +0000 (15:12 -0400)]
ath9k: fix regression on beacon loss after bgscan

When we return to the home channel we were never reseting our beacon
timers, this was casued by the fact that the scanning flag was still
on even after we returned to our home channel. There are also other
reasons why we would get a reset and if we are not off channel
we always need to resynch our beacon timers, because a reset will
clear them.

This bug is a regression introduced on 2.6.36. The order of the
changes are as follows:

5ee08656 - Sat Jul 31 - ath9k: prevent calibration during off-channel activity
a0daa0e7 - Tue Jul 27 - Revert "mac80211: fix sw scan bracketing"
543708be - Fri Jun 18 - mac80211: fix sw scan bracketing

mcgrof@tux ~/linux-2.6-allstable (git::master)$ git describe \
        --contains 5ee0865615f65f84e6ee9174771a6716c29e08e1
v2.6.36-rc1~43^2~34^2~22

mcgrof@tux ~/linux-2.6-allstable (git::master)$ git describe \
        --contains a0daa0e7592ada797d6835f11529097aabc27ad2
v2.6.36-rc1~571^2~64^2~13

mcgrof@tux ~/linux-2.6-allstable (git::master)$ git describe \
        --contains 543708be320d7df692d24b349ca01a947b340764
v2.6.36-rc1~571^2~107^2~187

So 5ee08656 would have worked if a0daa0e7 was not committed but
it was so this means 5ee08656 was broken since it assumed that
when we were in the channel change routine the scan flag would
be lifted. As it turns out the scan flag will be set when we
are already on the home channel.

For more details refer to:

http://code.google.com/p/chromium-os/issues/detail?id=5715

These issues will need to be considered for our solution on
reshifting the scan complete callback location on mac80211 on
current development kernel work.

This patch has stable fixes which apply down to [2.6.36+]

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: fix power save race conditions
Luis R. Rodriguez [Thu, 16 Sep 2010 19:12:26 +0000 (15:12 -0400)]
ath9k: fix power save race conditions

ath9k has a race on putting the chip into network sleep and
having registers read from hardware. The race occurs because
although ath9k_ps_restore() locks its own callers it makes use
of some variables which get altered in the driver at different
code paths. The variables are the ps_enabled and ps_flags.

This is easily reprodicible in large network environments when
roaming with the wpa_supplicant simple bgscan. You'd get some
0xdeadbeef read out on certain registers such as:

ath: timeout (100000 us) on reg 0x806c: 0xdeadbeef & 0x01f00000 != 0x00000000
ath: RX failed to go idle in 10 ms RXSM=0xdeadbeef

ath: timeout (100000 us) on reg 0x7000: 0xdeadbeef & 0x00000003 != 0x00000000
ath: Chip reset failed

The fix is to protect the ath9k_config(hw, IEEE80211_CONF_CHANGE_PS)
calls with a spin_lock_irqsave() which will disable contendors for
these variables from interrupt context, timers, re-entry from mac80211
on the same callback, and most importantly from ath9k_ps_restore()
which is the only call which will put the device into network sleep.

There are quite a few threads and bug reports on these a few of them are:

https://bugs.launchpad.net/ubuntu/karmic/+source/linux/+bug/407040
http://code.google.com/p/chromium-os/issues/detail?id=5709
http://code.google.com/p/chromium-os/issues/detail?id=5943

Stable fixes apply to [2.6.32+]

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Cc: Amod Bodas <amod.bodas@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k_htc: Fix register read through bulk pipe
Rajkumar Manoharan [Thu, 16 Sep 2010 14:26:55 +0000 (19:56 +0530)]
ath9k_htc: Fix register read through bulk pipe

To optimize register read/write operations, the HTC firmwares were patched
to change EP3 and EP4 pipe types from Interrupt to Bulk. So register writes
are submitted as bulk urbs, but register reads are not. Also changing the
register read endpoint pipe as bulk type when URBs are filled improves the
register reads considerably which results in reduced scan time and CPU
utilization.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: add p2p device type support
Johannes Berg [Thu, 16 Sep 2010 12:58:23 +0000 (14:58 +0200)]
mac80211: add p2p device type support

When a driver advertises p2p device support,
mac80211 will handle it, but internally it will
rewrite the interface type to STA/AP rather than
P2P-STA/GO since otherwise a lot of paths need
to be touched that are otherwise identical. A
p2p boolean tells drivers whether or not a given
interface will be used for p2p or not.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocfg80211/nl80211: introduce p2p device types
Johannes Berg [Thu, 16 Sep 2010 12:58:22 +0000 (14:58 +0200)]
cfg80211/nl80211: introduce p2p device types

This adds P2P-STA and P2P-GO as device types so
we can distinguish between those and normal STA
or AP (respectively) type interfaces.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k_hw: remove warning in ath9k_hw_def_get_num_ant_config
Rajkumar Manoharan [Thu, 16 Sep 2010 06:10:06 +0000 (11:40 +0530)]
ath9k_hw: remove warning in ath9k_hw_def_get_num_ant_config

This patch fixes following warning

drivers/net/wireless/ath/ath9k/eeprom_def.c: In function 'ath9k_hw_def_get_num_ant_config'
drivers/net/wireless/ath/ath9k/eeprom_def.c:1425:47: warning: comparison
between 'enum ath9k_hal_freq_band' and 'enum ieee80211_band'

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agolibertas: correct sparse warnings
John W. Linville [Wed, 15 Sep 2010 19:40:12 +0000 (15:40 -0400)]
libertas: correct sparse warnings

  CHECK   drivers/net/wireless/libertas/cfg.c
drivers/net/wireless/libertas/cfg.c:493:19: warning: cast to restricted __le16
  CHECK   drivers/net/wireless/libertas/mesh.c
drivers/net/wireless/libertas/mesh.c:577:16: warning: incorrect type in assignment (different base types)
drivers/net/wireless/libertas/mesh.c:577:16:    expected restricted __le32 [addressable] [assigned] [usertype] id
drivers/net/wireless/libertas/mesh.c:577:16:    got bool

Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: make ath_ant_div_conf_fast_divbias static
John W. Linville [Wed, 15 Sep 2010 19:26:13 +0000 (15:26 -0400)]
ath9k: make ath_ant_div_conf_fast_divbias static

  CHECK   drivers/net/wireless/ath/ath9k/recv.c
drivers/net/wireless/ath/ath9k/recv.c:1341:6: warning: symbol 'ath_ant_div_conf_fast_divbias' was not declared. Should it be static?

Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoiwlwifi: fix sparse warning about wrong enum for band parameter
John W. Linville [Wed, 15 Sep 2010 19:16:22 +0000 (15:16 -0400)]
iwlwifi: fix sparse warning about wrong enum for band parameter

drivers/net/wireless/iwlwifi/iwl-scan.c:386:27: warning: mixing different enum types
drivers/net/wireless/iwlwifi/iwl-scan.c:386:27:     int enum nl80211_band  versus
drivers/net/wireless/iwlwifi/iwl-scan.c:386:27:     int enum ieee80211_band
drivers/net/wireless/iwlwifi/iwl-scan.c:435:57: warning: mixing different enum types
drivers/net/wireless/iwlwifi/iwl-scan.c:435:57:     int enum ieee80211_band  versus
drivers/net/wireless/iwlwifi/iwl-scan.c:435:57:     int enum nl80211_band
drivers/net/wireless/iwlwifi/iwl-scan.c:474:53: warning: mixing different enum types
drivers/net/wireless/iwlwifi/iwl-scan.c:474:53:     int enum ieee80211_band  versus
drivers/net/wireless/iwlwifi/iwl-scan.c:474:53:     int enum nl80211_band
drivers/net/wireless/iwlwifi/iwl-scan.c:588:72: warning: mixing different enum types
drivers/net/wireless/iwlwifi/iwl-scan.c:588:72:     int enum ieee80211_band  versus
drivers/net/wireless/iwlwifi/iwl-scan.c:588:72:     int enum nl80211_band

Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: set running state earlier
Johannes Berg [Wed, 15 Sep 2010 13:13:13 +0000 (15:13 +0200)]
mac80211: set running state earlier

When an interface is brought up, the recent changes
to allow changing type-while-up only set the running
bit after everything was done. This broke a number
of things, including idle calculation for monitor
interfaces, and it also broke WDS station insertion
(although nobody noticed yet).

Thus, change the code to set the running bit earlier,
but keep it after the driver's add_interface was
called because otherwise drivers may iterate over
interfaces they haven't fully set up yet.

Reported-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agocfg80211/mac80211: use lockdep_assert_held
Johannes Berg [Wed, 15 Sep 2010 11:28:15 +0000 (13:28 +0200)]
cfg80211/mac80211: use lockdep_assert_held

Instead of using a WARN_ON(!mutex_is_locked())
use lockdep_assert_held() which compiles away
completely when lockdep isn't enabled, and
also is a more accurate assertion since it
checks that the current thread is holding the
mutex.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agomac80211: use correct station flags lock
Johannes Berg [Tue, 14 Sep 2010 20:06:53 +0000 (22:06 +0200)]
mac80211: use correct station flags lock

This code is modifying the station flags, and
as such should hold the flags lock so it can
do so atomically vs. other flags modifications
and readers. This issue was introduced when
this code was added in eccb8e8f, as it used
the wrong lock (thus not fixing the race that
was previously documented in a comment.)

Cc: stable@kernel.org [2.6.31+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: Print rxfilter in debugfs.
Ben Greear [Tue, 14 Sep 2010 19:46:04 +0000 (12:46 -0700)]
ath9k: Print rxfilter in debugfs.

Print raw and decoded rxfilter in debufs 'wiphy' file.

Also, move variable-length printouts to bottom of file to
make bounds checking easier.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: calcrxfilter should take multiple VIFs into account.
Ben Greear [Tue, 14 Sep 2010 19:00:22 +0000 (12:00 -0700)]
ath9k: calcrxfilter should take multiple VIFs into account.

When there is more than one VIF, listen for all beacons
and ensure ATH9K_RX_FILTER_MCAST_BCAST_ALL is set.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath9k: Use common ath key management functions
Bruno Randolf [Wed, 8 Sep 2010 07:05:04 +0000 (16:05 +0900)]
ath9k: Use common ath key management functions

Use key management functions which have been moved to ath/key.c and remove
ath9k copies of these functions and other now unused definitions.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Use common crypt capabilities flags
Bruno Randolf [Wed, 8 Sep 2010 07:04:59 +0000 (16:04 +0900)]
ath5k: Use common crypt capabilities flags

Replace ah_aes_support and ah_combined_mic with common ath_crypt_caps
ATH_CRYPT_CAP_CIPHER_AESCCM and ATH_CRYPT_CAP_MIC_COMBINED.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath/ath9k: Replace common->splitmic with a flag
Bruno Randolf [Wed, 8 Sep 2010 07:04:54 +0000 (16:04 +0900)]
ath/ath9k: Replace common->splitmic with a flag

Replace common->splitmic with ATH_CRYPT_CAP_MIC_COMBINED flag.

splitmic has to be used when the ATH_CRYPT_CAP_MIC_COMBINED capability flag is
not set.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Remove old ath5k key handling functions
Bruno Randolf [Wed, 8 Sep 2010 07:04:49 +0000 (16:04 +0900)]
ath5k: Remove old ath5k key handling functions

Remove the old ath5k key handling functions, since we now use the key
management in ath common.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath5k: Use common ath key management functions
Bruno Randolf [Wed, 8 Sep 2010 07:04:43 +0000 (16:04 +0900)]
ath5k: Use common ath key management functions

Use common ath key management functions in ath5k. This fixes problems with HW
encryption in AP mode, which was broken in the ath5k implementation.

Before (with the ath5k implementation) only one client could connect to the AP
using HW encryption and WPA. When a second client connected, the first client
was not able to send/receive any more packets. Because of the problems with HW
encryption, software encryption was always used in AP mode, which resulted in a
high CPU load (and/or low thruput) on embedded devices. Instead of trying to
fix the implementation in ath5k it makes more sense to share the code with
ath9k.

This also enables HW encryption for AP mode again.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath: Copy key cache management functions from ath9k to ath
Bruno Randolf [Wed, 8 Sep 2010 07:04:38 +0000 (16:04 +0900)]
ath: Copy key cache management functions from ath9k to ath

Copied the key cache management functions from ath9k (common.c and hw.c) to
ath/key.c so we can use them from ath5k, later.

Minor changes have been made:
 - renamed ath9k_* to ath_*
 - replaced ah->caps.keycache_size with common->keymax
 - removed ATH9K_IS_MIC_ENABLED since it is always true.
 - the AR_PCU_MIC_NEW_LOC_ENA flag is replaced with (splitmic == 0).

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoath: Copy cryptographic capability flags into ath
Bruno Randolf [Wed, 8 Sep 2010 07:04:33 +0000 (16:04 +0900)]
ath: Copy cryptographic capability flags into ath

This will be used later in this patch series.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoinclude/net/cfg80211.h: wiphy_<level> messages use dev_printk
Joe Perches [Fri, 20 Aug 2010 22:13:59 +0000 (15:13 -0700)]
include/net/cfg80211.h: wiphy_<level> messages use dev_printk

The output becomes:

[   41.261941] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agonet: enable GRO by default for vlan devices
Brandon Philips [Wed, 15 Sep 2010 09:24:24 +0000 (09:24 +0000)]
net: enable GRO by default for vlan devices

Currently vlan devices don't have GRO by default as none of the Ethernet
drivers add NETIF_F_GRO to their vlan_features.

As GRO is a software feature add GRO to dev->vlan_features in
register_netdevice() and let vlan_dev_init() take care that it gets
enabled only when dev->features has NETIF_F_GRO too.

Signed-off-by: Brandon Philips <bphilips@suse.de>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>