mac80211 notifies the RC algorithm if RTS/CTS and short preamble
are needed. The RC flags for MCS rates are currently not handled
by mac80211, and ath9k's RC doesn't set the flags either. Fix this.

Also, set the rts_cts_rate_idx inside the RC algorithm.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

The interface to calculate the TX rate for a data frame
was convoluted with lots of redundant arguments being
passed around. Remove all of that and make it simple.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

When freeing rx dma descriptors, use the right buffer size.
Fixes kernel oopses on module unload on ixp4xx and most likely
other platforms as well.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

The base versions handle constant folding now.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Fixed led device naming for the iwl driver. Due to the
documentation of the led subsystem/class the naming should be
"devicename:colour:function" while not applying sections
should be left blank.

This should lead to e.g. "iwl-phy0::RX" instead of "iwl-phy0:RX".
Signed-off-by: Danny Kukawka <dkukawka@suse.de>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

not defining dependencies for LIBIPW caused the following entries to not be
indented. changing this entry to depend on PCI && WLAN_80211 corrects this
issue
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

redefine structures that contain function pointer for chain noise reset
and chain noise gain for the 6000 family since these are not needed.
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

defined the structures and functions as extern to alter behavior used by
5000 series for other products including 100 and 6000 series
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Correct the API commands where same command id used for two different
commands. Update max api versions for affected devices.

TX_ANT_CONFIGURATION_CMD was already using id 0x98, so
REPLY_TX_POWER_DBM_CMD moved to 0x95

Older API interfaces may used original value so V1 defines provided.
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

added a config parameter to enable setting PLL_CFG.  older hardware has
this parameter set true.  the 6000 family does not support this setting,
so this parameter set false.
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

by parametrizing the set hw function, in addition to allowing for
supporting the 6000 family significantly simplify the addition of new
hardware.
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

simply add definitions for the HW_REV_TYPEs for the new devices.
Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

I hold back this patch for around a week to avoid
confusion. This is the second step of
"mac80211: Fixed BSSID handling revisited".

With it, in the situation of a strange merge to the
same BSSID (e.g. caused by a TSF overflow) only
reset_tsf() is called.

And sta_info_flush_delayed() is only called if you
change the network manually, not on an automatic
BSSID merge.
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

This fixes a bug when creating a new IBSS network with a
fixed BSSID. The fixed BSSID situation is now with one of
my last patches handled in ieee80211_sta_find_ibss()
function.

It's more robust to test against
(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET), because
ifsta->state is not seted right in every situation and so
the creating of the new IBSS network sometimes hangs after
the first try to scan for a network to merge.
Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

RX filter masks are already defined in enum ath9k_rx_filter
in ath9k.h
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Trying to associate with a non-existent SSID stops the
state machine after the first run. Subsequent association
requests fail to start the scan engine. Fix this by resetting
assoc_scan_tries to zero after completing a scan run.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

If we have new found information about our location and the
current country regulatory domain does not have passive scan
flag requirements we should be able to actively scan now on those
channels.

Since AP functionality is not allowed where passive scan flags are
set this means if you have a world regulatory domain and you get a
country IE that allows that channel (with active scan) then we lift
the passive-scan requirement so you can then use AP mode.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

This will be used later.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

No need to use our internal wireless mode variable when
cfg80211 already has its own.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Enable operating mode specific interrupts in ath9k_add_interface instead
of ath9k_start.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

This patch fixes the lockdep warning shown below, and also
initializes the starting sequence number when starting a TX
aggregation session.

 =============================================
 [ INFO: possible recursive locking detected ]
 2.6.29-rc2-wl #21
 ---------------------------------------------
 swapper/0 is trying to acquire lock:
  (_xmit_IEEE80211#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290

 but task is already holding lock:
  (_xmit_IEEE80211#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290

 other info that might help us debug this:
 7 locks held by swapper/0:
  #0:  (rcu_read_lock){..--}, at: [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620
  #1:  (_xmit_ETHER#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290
  #2:  (rcu_read_lock){..--}, at: [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620
  #3:  (_xmit_IEEE80211#2){-+..}, at: [<ffffffff80456d71>] __qdisc_run+0x221/0x290
  #4:  (rcu_read_lock){..--}, at: [<ffffffffa0154919>] ieee80211_master_start_xmit+0x219/0x6c0 [mac80211]
  #5:  (rcu_read_lock){..--}, at: [<ffffffffa01427c6>] ieee80211_start_tx_ba_session+0x66/0x4e0 [mac80211]
  #6:  (rcu_read_lock){..--}, at: [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620

 stack backtrace:
 Pid: 0, comm: swapper Not tainted 2.6.29-rc2-wl #21
 Call Trace:
  <IRQ>  [<ffffffff8026c329>] __lock_acquire+0x1be9/0x1c40
  [<ffffffff80442af1>] dev_queue_xmit+0xe1/0x620
  [<ffffffff8026a8cc>] __lock_acquire+0x18c/0x1c40
  [<ffffffff8026c3d5>] lock_acquire+0x55/0x70
  [<ffffffff80456d71>] __qdisc_run+0x221/0x290
  [<ffffffff804dbeb9>] _spin_lock+0x39/0x50
  [<ffffffff80456d71>] __qdisc_run+0x221/0x290
  [<ffffffff804dbd2f>] _spin_unlock+0x1f/0x50
  [<ffffffff80456d71>] __qdisc_run+0x221/0x290
  [<ffffffff80442d18>] dev_queue_xmit+0x308/0x620
  [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620
  [<ffffffffa0142a63>] ieee80211_start_tx_ba_session+0x303/0x4e0 [mac80211]
  [<ffffffffa01427c6>] ieee80211_start_tx_ba_session+0x66/0x4e0 [mac80211]
  [<ffffffffa0149dae>] rate_control_get_rate+0xae/0xc0 [mac80211]
  [<ffffffffa01526b5>] invoke_tx_handlers+0x655/0x1000 [mac80211]
  [<ffffffff802699fd>] mark_held_locks+0x4d/0x90
  [<ffffffff804dbcf5>] _spin_unlock_irqrestore+0x65/0x80
  [<ffffffffa0151aaa>] __ieee80211_tx_prepare+0x16a/0x310 [mac80211]
  [<ffffffffa0151adc>] __ieee80211_tx_prepare+0x19c/0x310 [mac80211]
  [<ffffffff80439cc2>] pskb_expand_head+0x112/0x190
  [<ffffffffa0154986>] ieee80211_master_start_xmit+0x286/0x6c0 [mac80211]
  [<ffffffffa0154919>] ieee80211_master_start_xmit+0x219/0x6c0 [mac80211]
  [<ffffffff8026a8cc>] __lock_acquire+0x18c/0x1c40
  [<ffffffff80456d8e>] __qdisc_run+0x23e/0x290
  [<ffffffff80442d18>] dev_queue_xmit+0x308/0x620
  [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620
  [<ffffffffa0154221>] ieee80211_subif_start_xmit+0x4a1/0x980 [mac80211]
  [<ffffffffa0153f18>] ieee80211_subif_start_xmit+0x198/0x980 [mac80211]
  [<ffffffff80456d8e>] __qdisc_run+0x23e/0x290
  [<ffffffff80442d18>] dev_queue_xmit+0x308/0x620
  [<ffffffff80442a63>] dev_queue_xmit+0x53/0x620
  [<ffffffffa028ecfd>] ip6_output+0x62d/0x1230 [ipv6]
  [<ffffffff8024ca00>] __mod_timer+0xb0/0xd0
  [<ffffffffa02ad25a>] mld_sendpack+0x3fa/0x4a0 [ipv6]
  [<ffffffffa02ace60>] mld_sendpack+0x0/0x4a0 [ipv6]
  [<ffffffffa02adf90>] mld_ifc_timer_expire+0x0/0x340 [ipv6]
  [<ffffffffa02ae219>] mld_ifc_timer_expire+0x289/0x340 [ipv6]
  [<ffffffffa02adf90>] mld_ifc_timer_expire+0x0/0x340 [ipv6]
  [<ffffffff8024c097>] run_timer_softirq+0x147/0x220
  [<ffffffff802473fb>] __do_softirq+0x9b/0x180
  [<ffffffff80265516>] tick_dev_program_event+0x36/0xb0
  [<ffffffff8020d77c>] call_softirq+0x1c/0x30
  [<ffffffff8020f2c5>] do_softirq+0x65/0xb0
  [<ffffffff80246ebd>] irq_exit+0x9d/0xc0
  [<ffffffff80221db6>] smp_apic_timer_interrupt+0x86/0xd0
  [<ffffffff8020d1b3>] apic_timer_interrupt+0x13/0x20
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

The get_firmware_crc() callback function isn't flexible
enough when dealing with multiple firmware versions.
It might in some cases be possible that the firmware
file contains multiple CRC checksums.

Create the check_firmware() callback function where the driver
has complete freedom in how to validate the firmware.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

provide rt2x00lib the possibility to kill a particular TX queue.
This can be useful when disabling the radio, but more importantly
will allow beaconing to be disabled when mac80211 requests this
(during scanning for example)
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

ieee80211_iterate_active_interfaces() no longer acquires the
RTNL lock which means the intf_work handler can be safely
used from the mac80211 workqueue again.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

This patch unifies 3945 and iwlagn power save management
This patch also better separates system state from user setting.
System state shall be removed later as this shall be shifted to user space
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Call IWL_DEBUG macro with explicit priv argument.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

pci_enable_device is tagged with __must_check therefore
don't ignore the return value in pci_resume handlers
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

iwl3945_send_tx_power must be static
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

This patch adds __maybe_unused attribute to priv variables used in
functions that used it solely for debug printouts
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

The iwl_rxon_cmd is really just a iwl3945_rxon_cmd structure extension.
So, we can use the *_rxon fields from iwl_priv instead of the 3945 specific
ones (*39_rxon). We have to then be careful when submitting REPLY_RXON host
commands, since the command length as to be set according to the HW. As
another precaution the reserved4 and reserved5 fields are cleared before being
sent to the 3945.

With the *39_rxon removal, a lot of duplicated code can be removed from the
3945 code base.
Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Fix errors and obvious warnings reported by checkpatch in all files
except orinoco.c. Orinoco.c is part of different patch series of Dave.
Signed-off-by: Andrey Borzenkov <arvidjaar@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

gro: Optimise TCP packet reception

As this function can be called more than half a million times for
10GbE, it's important to optimise it as much as we can.

This patch uses bit ops to logical ops, as well as open coding
memcmp to exploit alignment properties.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

As this function can be called more than half a million times for
10GbE, it's important to optimise it as much as we can.

This patch does some obvious changes to use 2-byte and 4-byte
operations instead of byte-oriented ones where possible.  Bit
ops are also used to replace logical ops to reduce branching.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch optimises the Ethernet header comparison to use 2-byte
and 4-byte xors instead of memcmp.  In order to facilitate this,
the actual comparison is now carried out by the callers of the
shared dev_gro_receive function.

This has a significant impact when receiving 1500B packets through
10GbE.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch prepares for the move of the same_flow checks out of
dev_gro_receive.  As such we need to remember the number of held
packets since doing a loop just to count them every time is silly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

Several devices need to insert some "pre headers" in front of the
main packet data when they transmit a packet.

Currently we allocate only 16 bytes of pad room and this ends up not
being enough for some types of hardware (NIU, usb-net, s390 qeth,
etc.)

So increase this to 32.

Note that drivers still need to check in their transmit routine
whether enough headroom exists, and if not use skb_realloc_headroom().
Tunneling, IPSEC, and other encapsulation methods can cause the
padding area to be used up.
Signed-off-by: David S. Miller <davem@davemloft.net>

Conflicts:
	drivers/net/wireless/iwlwifi/iwl-agn.c
	drivers/net/wireless/iwlwifi/iwl3945-base.c

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>