linux-2.6-microblaze.git
12 years agoiwlwifi: move iwl_force_rf_reset to iwl-agn-rx.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 22:55:13 +0000 (15:55 -0700)]
iwlwifi: move iwl_force_rf_reset to iwl-agn-rx.c

Move this function as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_send_statistics_request to iwl-agn.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 22:49:37 +0000 (15:49 -0700)]
iwlwifi: move iwl_send_statistics_request to iwl-agn.c

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_print_rx_config_cmd to iwl-agn-rxon.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 22:15:33 +0000 (15:15 -0700)]
iwlwifi: move iwl_print_rx_config_cmd to iwl-agn-rxon.c

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_send_bt_config and mark it static
Meenakshi Venkataraman [Wed, 14 Mar 2012 01:23:51 +0000 (18:23 -0700)]
iwlwifi: move iwl_send_bt_config and mark it static

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_set_tx_power and make it static
Meenakshi Venkataraman [Wed, 14 Mar 2012 01:10:19 +0000 (18:10 -0700)]
iwlwifi: move iwl_set_tx_power and make it static

This function is used only in iwl-agn-rxon.c,
move it there and mark it static.

Move this function as part of iwl-core.c
cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwlagn_fw_error to iwl-agn.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 01:00:15 +0000 (18:00 -0700)]
iwlwifi: move iwlagn_fw_error to iwl-agn.c

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_chswitch_done to iwl-mac80211.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 00:47:23 +0000 (17:47 -0700)]
iwlwifi: move iwl_chswitch_done to iwl-mac80211.c

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_set_rate to iwl-agn-rxon.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 00:16:07 +0000 (17:16 -0700)]
iwlwifi: move iwl_set_rate to iwl-agn-rxon.c

Move this as part of  iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_connection_init_rx_config to iwl-agn-rxon.c
Meenakshi Venkataraman [Wed, 14 Mar 2012 00:07:48 +0000 (17:07 -0700)]
iwlwifi: move iwl_connection_init_rx_config to iwl-agn-rxon.c

Move this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_set_flags_for_band to iwl-agn-rxon.c
Meenakshi Venkataraman [Tue, 13 Mar 2012 23:45:00 +0000 (16:45 -0700)]
iwlwifi: move iwl_set_flags_for_band to iwl-agn-rxon.c

Moving this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_set_rxon_channel to iwl-agn-rxon.c
Meenakshi Venkataraman [Tue, 13 Mar 2012 23:31:34 +0000 (16:31 -0700)]
iwlwifi: move iwl_set_rxon_channel to iwl-agn-rxon.c

Moving this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_set_rxon_ht to iwl-agn-rxon.c
Meenakshi Venkataraman [Tue, 13 Mar 2012 23:25:38 +0000 (16:25 -0700)]
iwlwifi: move iwl_set_rxon_ht to iwl-agn-rxon.c

Moving this as part of iwl-core.c cleanup.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_is_ht40_tx_allowed out of iwl-core.c
Meenakshi Venkataraman [Tue, 13 Mar 2012 23:15:09 +0000 (16:15 -0700)]
iwlwifi: move iwl_is_ht40_tx_allowed out of iwl-core.c

This is really something determined by
station parameters, so move it to
iwl-agn-sta.c.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_set_hw_rfkill_state and mark it static
Meenakshi Venkataraman [Tue, 13 Mar 2012 22:33:18 +0000 (15:33 -0700)]
iwlwifi: move iwl_set_hw_rfkill_state and mark it static

iwl_set_hw_rfkill_state is used only in
iwl-agn.c. Move it there and mark it static.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwl_free_skb and mark it static
Meenakshi Venkataraman [Tue, 13 Mar 2012 22:24:44 +0000 (15:24 -0700)]
iwlwifi: move iwl_free_skb and mark it static

iwl_free_skb is used only in iwl-agn.c, move
it there and mark it static.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move channel switch related functions
Meenakshi Venkataraman [Tue, 13 Mar 2012 22:18:07 +0000 (15:18 -0700)]
iwlwifi: move channel switch related functions

With the creation of iwl-agn-devices.c,
iwl-core.c can be cleaned up a bit more by
moving beacon time related functions from
iwl-core.c to iwl-agn-devices.c

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: calculate active legacy rates per station
Johannes Berg [Thu, 8 Mar 2012 08:18:04 +0000 (09:18 +0100)]
iwlwifi: calculate active legacy rates per station

Not all stations are guaranteed to have the same
active (available) legacy rates, so calculate them
on rate control init instead of hard-coding them
based on our own available rates. I have no idea
why that was done here before.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: make iwl_sta_fill_lq static
Johannes Berg [Thu, 8 Mar 2012 09:19:55 +0000 (10:19 +0100)]
iwlwifi: make iwl_sta_fill_lq static

It's only used in a single place.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoiwlwifi: move iwlagn_hw_valid_rtc_data_addr prototype
Meenakshi Venkataraman [Wed, 7 Mar 2012 21:54:08 +0000 (13:54 -0800)]
iwlwifi: move iwlagn_hw_valid_rtc_data_addr prototype

Since this function is now used only by
op_mode, remove it from iwl-shared.h and move
it to iwl-agn.h.

Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Signed-off-by-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
Wey-Yi Guy [Thu, 12 Apr 2012 21:07:13 +0000 (14:07 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next into wireless-next

12 years agoiwlwifi: dynamically determine lib_ops
Johannes Berg [Tue, 10 Apr 2012 21:10:28 +0000 (14:10 -0700)]
iwlwifi: dynamically determine lib_ops

Having the pointer to lib_ops in the config
makes it impossible to split the driver into
different modules. Determine the ops based on
the device family enumeration to get rid of
the direct pointer.

Also move all the opmode specific code from
the iwl-[1256]000.c files into a new file
iwl-agn-devices.c so that the former only
have configuration data now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agonet/wireless: ipw2x00: add supported cipher suites to wiphy initialization
Stanislav Yakovlev [Wed, 11 Apr 2012 01:44:47 +0000 (21:44 -0400)]
net/wireless: ipw2x00: add supported cipher suites to wiphy initialization

Driver doesn't report its supported cipher suites through cfg80211
interface. It still uses wext interface and probably will not work
through nl80211, but will at least correctly advertise supported
features.

Bug was reported by Omar Siam.
https://bugzilla.kernel.org/show_bug.cgi?id=43049

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoprism54: replace open-coded ARRAY_SIZE with macro
Jim Cromie [Wed, 11 Apr 2012 00:56:34 +0000 (18:56 -0600)]
prism54: replace open-coded ARRAY_SIZE with macro

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agobrcm80211: replace open-coded ARRAY_SIZE with the macro
Jim Cromie [Tue, 10 Apr 2012 23:02:34 +0000 (17:02 -0600)]
brcm80211: replace open-coded ARRAY_SIZE with the macro

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fix LLCP link timeout typo
Samuel Ortiz [Tue, 10 Apr 2012 17:43:20 +0000 (19:43 +0200)]
NFC: Fix LLCP link timeout typo

We were sending the LTO TLV as a version TLV instead of the actual link
timeout one.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Add MIUX to the local LLCP general bytes
Samuel Ortiz [Tue, 10 Apr 2012 17:43:19 +0000 (19:43 +0200)]
NFC: Add MIUX to the local LLCP general bytes

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: pn533 Rx chaining support
Samuel Ortiz [Tue, 10 Apr 2012 17:43:18 +0000 (19:43 +0200)]
NFC: pn533 Rx chaining support

When buffers on the receiption path exceed 262 bytes, the pn533 uses
a chaining mechanism where the initiator has to send NULL data frames
to fetch the remaining frames.
We do that from a workqueue context while holding the cmd lock. Once the
MI bit is gone, we aggregate the queued received skbs.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Convert pn533 from tasklet to workqueues
Samuel Ortiz [Tue, 10 Apr 2012 17:43:17 +0000 (19:43 +0200)]
NFC: Convert pn533 from tasklet to workqueues

There is no need for soft IRQ contexts, and workqueues are more flexible.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Call llcp_add_header properly when sending LLCP DM or DISC
Samuel Ortiz [Tue, 10 Apr 2012 17:43:16 +0000 (19:43 +0200)]
NFC: Call llcp_add_header properly when sending LLCP DM or DISC

dsap and ssap were swapped when sending DN or DISC.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fix LLCP TLV building routine
Samuel Ortiz [Tue, 10 Apr 2012 17:43:15 +0000 (19:43 +0200)]
NFC: Fix LLCP TLV building routine

The if logic could lead to zero length TLVs.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: No need to apply twice the modulo op to LLCP's recv_n
Samuel Ortiz [Tue, 10 Apr 2012 17:43:14 +0000 (19:43 +0200)]
NFC: No need to apply twice the modulo op to LLCP's recv_n

recv_n is set properly when receiving an HDLC frame.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Dump LLCP frames
Samuel Ortiz [Tue, 10 Apr 2012 17:43:13 +0000 (19:43 +0200)]
NFC: Dump LLCP frames

At KERN_DEBUG level.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Add Core support to generate tag lost event
Eric Lapuyade [Tue, 10 Apr 2012 17:43:12 +0000 (19:43 +0200)]
NFC: Add Core support to generate tag lost event

Some HW/drivers get notifications when a tag moves out of the radio field.
This notification is now forwarded to user space through netlink.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Changed target activated state logic
Eric Lapuyade [Tue, 10 Apr 2012 17:43:11 +0000 (19:43 +0200)]
NFC: Changed target activated state logic

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fix next target_idx type and rename for clarity
Eric Lapuyade [Tue, 10 Apr 2012 17:43:10 +0000 (19:43 +0200)]
NFC: Fix next target_idx type and rename for clarity

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: The core part should generate the target index
Samuel Ortiz [Tue, 10 Apr 2012 17:43:09 +0000 (19:43 +0200)]
NFC: The core part should generate the target index

The target index can be used by userspace to uniquely identify a target
and thus should be kept unique, per NFC adapter. Moreover, some protocols
do not provide a logical index when discovering new targets, so we have to
generate one for them.
For NCI or pn533 to fetch their logical index, we added a logical_idx field
to the target structure.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Add HCI documentation
Eric Lapuyade [Tue, 10 Apr 2012 17:43:08 +0000 (19:43 +0200)]
NFC: Add HCI documentation

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: SHDLC implementation
Eric Lapuyade [Tue, 10 Apr 2012 17:43:07 +0000 (19:43 +0200)]
NFC: SHDLC implementation

Most NFC HCI chipsets actually use a simplified HDLC link layer to
carry HCI payloads.
This implementation registers itself as an HCI device on behalf of the
NFC driver.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: HCI support
Eric Lapuyade [Tue, 10 Apr 2012 17:43:06 +0000 (19:43 +0200)]
NFC: HCI support

This is an implementation of ETSI TS 102 622 specification.
Many NFC chipsets use HCI as the host <-> target protocol on top of a
serial link like i2c.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Export target lost function
Eric Lapuyade [Tue, 10 Apr 2012 17:43:05 +0000 (19:43 +0200)]
NFC: Export target lost function

NFC drivers will call this routine when they detect that a tag leaves the
RF field. This will eventually lead to the corresponding netlink event
to be sent.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Add a target lost netlink event
Samuel Ortiz [Tue, 10 Apr 2012 17:43:04 +0000 (19:43 +0200)]
NFC: Add a target lost netlink event

Some chips are capable of detecting when a tag is out of the field, so
they could send a netlink event about it to userspace.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k: remove dead code
Zefir Kurtisi [Tue, 10 Apr 2012 11:18:04 +0000 (13:18 +0200)]
ath9k: remove dead code

Clean up some orphaned code lines containing
* unused variables (not referenced / write-only)
* non-implemented function prototypes

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: fix the assignment of PREQ's MAC address for Proactive RANN
Chun-Yeow Yeoh [Tue, 10 Apr 2012 04:31:56 +0000 (12:31 +0800)]
mac80211: fix the assignment of PREQ's MAC address for Proactive RANN

Record the RANN sender's address only for RANNs that meet the acceptance
criteria (per sections 13.10.12.4.2).

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Reviewed-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomwifiex: use asynchronous firmware loading
Amitkumar Karwar [Tue, 10 Apr 2012 03:06:57 +0000 (20:06 -0700)]
mwifiex: use asynchronous firmware loading

Make use of request_firmware_nowait instead of request_firmware
to load FW asynchronously. This fixes timeouts introduced with
recent udev changes.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomwifiex: add support for WPS2.0
Avinash Patil [Tue, 10 Apr 2012 03:06:56 +0000 (20:06 -0700)]
mwifiex: add support for WPS2.0

This patches enables setting association request and probe request
IE for station interface. WPS exchange between WPS2.0 AP and mwifiex
STA Enrollee/External Registrar completes successfully.

Tested with wpa_supplicant 1.0 and 2.0 devel.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomwifiex: display correct country information in debugfs "info"
Amitkumar Karwar [Tue, 10 Apr 2012 03:06:55 +0000 (20:06 -0700)]
mwifiex: display correct country information in debugfs "info"

Use "priv->country_code" string to display country information in
debugfs command "info" instead of "adapter->region_code".

"adapter->region_code" contains default region code got from FW while
initialization, whereas "priv->country_code" is updated in reg_notifier
handler whenever there is a change in regulatory domain.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomwifiex: set default regulatory domain
Amitkumar Karwar [Tue, 10 Apr 2012 03:06:54 +0000 (20:06 -0700)]
mwifiex: set default regulatory domain

Driver gets region code from FW during initialisation. This patch
makes use of it for settting default regulatory domain using
regulatory_hint() API.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomwifiex: fix typo in RSSI_HIGH event handling
Bing Zhao [Tue, 10 Apr 2012 03:06:53 +0000 (20:06 -0700)]
mwifiex: fix typo in RSSI_HIGH event handling

This is a copy-n-paste error introduced in recent patch
"mwifiex: add set_cqm_rssi_config handler support".

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: introduce device family enum
Johannes Berg [Tue, 10 Apr 2012 00:47:00 +0000 (17:47 -0700)]
iwlwifi: introduce device family enum

This will later be used to dynamically bind
the configuration data for DVM and MVM.

For now, we can use it to get rid of the
additional_nic_config() hook.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: create device configuration header file
Johannes Berg [Tue, 10 Apr 2012 00:46:59 +0000 (17:46 -0700)]
iwlwifi: create device configuration header file

The iwl-shared.h header file will be going away
soon. There isn't much left in it that we keep,
other than the device configuration declarations.
Move those out now to a new iwl-config.h header.
iwl-cfg.h seemed like a possible alternative but
those declarations will later live in the PCIe
transport code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move eeprom into priv
Johannes Berg [Tue, 10 Apr 2012 00:46:58 +0000 (17:46 -0700)]
iwlwifi: move eeprom into priv

The whole code around eeprom is distributed
across whole bunch of different files, most
of which belong to the to-be-DVM code. As a
result, it is currently very hard to split
out the EEPROM code to be generic. However,
it is also quite unlikely that the current
EEPROM code will be needed by the MVM code
as that has different mechanisms to query
the EEPROM (it does so through the uCode.)

So, at least temporarily, move everything
into priv. If it becomes necessary to use
the code from MVM, we will have to split it
out, but then it's also easier since we'll
know what pieces we need.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: split force_reset debugfs file
Johannes Berg [Tue, 10 Apr 2012 00:46:57 +0000 (17:46 -0700)]
iwlwifi: split force_reset debugfs file

Split the force_reset debugfs file into two
different files:
 * "rf_reset" triggers a reset of the RF when
   written to and exposes statistics on RF
   resets when read
 * fw_restart triggers a firmware restart when
   written to and lives in the transport

This cleans up all sources of firmware restart
to originate within the transport layer and
allows us to simplify some code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove ack_check module parameter
Johannes Berg [Tue, 10 Apr 2012 00:46:56 +0000 (17:46 -0700)]
iwlwifi: remove ack_check module parameter

This defaults to false, and we don't recommend
to use it anywhere, so just remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move hw_params into priv
Johannes Berg [Tue, 10 Apr 2012 00:46:55 +0000 (17:46 -0700)]
iwlwifi: move hw_params into priv

The hw_params are mostly values that are
derived from the actual hardware config.
As such, while it is possible that MVM
will require similar ones, it makes more
sense -- at least for now -- to put them
into the DVM struct.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move queue watchdog into transport
Johannes Berg [Tue, 10 Apr 2012 00:46:54 +0000 (17:46 -0700)]
iwlwifi: move queue watchdog into transport

This removes one of the two sources of device
restarts in the upper layer -- those are a bit
inconvenient because normal restarts originate
in the transport. By moving the watchdog down
it can be treated the same.

Also rewrite the watchdog logic. Timers are
much more efficient when they never fire, so
instead firing a timer every 500ms set up a
timer for each TX queue and fire it only when
the queue is really stuck. This avoids the CPU
waking up when everything is working well.

While at it, remove the wd_disable config item
and replace it by simply setting wd_timeout to
IWL_WATCHHDOG_DISABLED (0).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove unneeded struct declarations
Johannes Berg [Tue, 10 Apr 2012 00:46:53 +0000 (17:46 -0700)]
iwlwifi: remove unneeded struct declarations

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: remove watchdog debugfs file
Johannes Berg [Tue, 10 Apr 2012 00:46:52 +0000 (17:46 -0700)]
iwlwifi: remove watchdog debugfs file

This file isn't really all that useful as
when the watchdog triggered it's already
too late, and the setting doesn't persist
unlike e.g. a module parameter that could
be added to the right config file.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwlwifi: move rx_page_order into transport
Johannes Berg [Tue, 10 Apr 2012 00:46:51 +0000 (17:46 -0700)]
iwlwifi: move rx_page_order into transport

That way it isn't needed in hw_params, which
is shared data. It also isn't really what we
should configure in the transport, that is
better just 4k/8k, so configure a bool and
derive the page order in the transport. This
also means the transport doesn't need access
to the module parameter any more.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoipw2100: remove a redundant NULL check before calling release_firmware()
Jesper Juhl [Mon, 9 Apr 2012 20:52:34 +0000 (22:52 +0200)]
ipw2100: remove a redundant NULL check before calling release_firmware()

The release_firmware() function does its own NULL test so a test
before calling it is rather redundant.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agowireless, orinoco: release_firmware() tests for NULL, remove explicit tests before...
Jesper Juhl [Mon, 9 Apr 2012 20:51:19 +0000 (22:51 +0200)]
wireless, orinoco: release_firmware() tests for NULL, remove explicit tests before calls

It is redundant to test for NULL pointers before calling
release_firmware() since the function does its own NULL test.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agowireless, mwifiex: drop redundant NULL test before call to release_firmware()
Jesper Juhl [Mon, 9 Apr 2012 20:51:12 +0000 (22:51 +0200)]
wireless, mwifiex: drop redundant NULL test before call to release_firmware()

Since release_firmware() does its own test for NULL it is redundant to
do so before calling it.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agowireless, libertas: remove redundant NULL tests before calling release_firmware()
Jesper Juhl [Mon, 9 Apr 2012 20:51:07 +0000 (22:51 +0200)]
wireless, libertas: remove redundant NULL tests before calling release_firmware()

release_firmware() tests for, and deals gracefully with, NULL
pointers. Remove redundant explicit tests before calling the function.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoipw2200: remove a redundant NULL check before calling release_firmware()
Jesper Juhl [Mon, 9 Apr 2012 20:51:01 +0000 (22:51 +0200)]
ipw2200: remove a redundant NULL check before calling release_firmware()

The release_firmware() function does its own NULL test, so testing
before calling it is rather redundant.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agowireless, atmel: remove pointless test for NULL before release_firmware() call
Jesper Juhl [Mon, 9 Apr 2012 20:50:53 +0000 (22:50 +0200)]
wireless, atmel: remove pointless test for NULL before release_firmware() call

release_firmware() does its own test. Explicitly checking before the
call is redundant.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agowireless, at76c50x:: Don't needlessly test for NULL before calling release_firmware()
Jesper Juhl [Mon, 9 Apr 2012 20:50:47 +0000 (22:50 +0200)]
wireless, at76c50x:: Don't needlessly test for NULL before calling release_firmware()

The release_firmware() function deals gracefully with being passed a
NULL pointer, so explicit tests before the call are rather pointless.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortl8192de: Recognize 92D E-CUT version.
Forest Bond [Sun, 8 Apr 2012 19:12:34 +0000 (14:12 -0500)]
rtl8192de: Recognize 92D E-CUT version.

The chip version constant (0xCC33) was taken from version 0001.0105.2011
of the GPL vendor driver.  Note that this driver version also ships a
firmware update, but I am unsure if it is required for E-CUT chips to
function properly.

A nearby spelling error was also corrected.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortl8192de: Clean up and fix 92D cut version constants and macros.
Forest Bond [Sun, 8 Apr 2012 19:12:33 +0000 (14:12 -0500)]
rtl8192de: Clean up and fix 92D cut version constants and macros.

The previous definitions included both {B,C,D,E}_CUT_VERSION and
CHIP_92D_{C,D}_CUT with conflicting values for the C and D cut versions,
and literal hex values were used in the IS_92D_{C,D,E}_CUT macros.  So
we clean all this up and in doing so enable cut-specific code paths for
cuts C and D, which would not have been executed because the
CHIP_92D_{C,D}_CUT constants were wrong and the cut version was thus
recorded incorrectly.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: support for Belkin Surf N300 XR
Lorenzo Bianconi [Sun, 8 Apr 2012 18:12:35 +0000 (20:12 +0200)]
rtlwifi: support for Belkin Surf N300 XR

Added support for Belkin Surf N300 XR wireless usb adapter to rtlwifi driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoMerge branch 'for-linville' of git://github.com/kvalo/ath6kl
John W. Linville [Thu, 12 Apr 2012 19:02:19 +0000 (15:02 -0400)]
Merge branch 'for-linville' of git://github.com/kvalo/ath6kl

12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville [Thu, 12 Apr 2012 17:49:28 +0000 (13:49 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless

12 years agort2x00: do not generate seqno in h/w if QOS is disabled
Stanislaw Gruszka [Mon, 2 Apr 2012 11:21:06 +0000 (13:21 +0200)]
rt2x00: do not generate seqno in h/w if QOS is disabled

This is workaround H/W or F/W bug, see in code comments. Without the fix
ping can receive duplicated ICMP frames while associated with legacy AP.

Reported-by: Walter Goldens <goldenstranger@yahoo.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agonet/wireless: ipw2x00: remove ssid_context struct
Stanislav Yakovlev [Sat, 7 Apr 2012 21:31:21 +0000 (17:31 -0400)]
net/wireless: ipw2x00: remove ssid_context struct

Driver does not use it any more.

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agonet/wireless: ipw2x00: remove unused libipw_measurement_report struct
Stanislav Yakovlev [Sat, 7 Apr 2012 08:44:40 +0000 (04:44 -0400)]
net/wireless: ipw2x00: remove unused libipw_measurement_report struct

and all referenced structs and corresponding enums because the driver
does not use it.

Note: keep libipw_info_element struct since it is still in use.

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agocfg80211: add channel switch notify event
Thomas Pedersen [Fri, 6 Apr 2012 20:35:47 +0000 (13:35 -0700)]
cfg80211: add channel switch notify event

The firmware may decide to switch channels while already beaconing, e.g.
in response to a cfg80211 connect request on a different vif. Add this
event to notify userspace when an AP or GO interface has successfully
migrated to a new channel, so it can update its configuration
accordingly.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath5k: Remove extraneous statements from ath5k_hw_proc_4word_tx_status and ath5k_hw_p...
Qasim Javed [Fri, 6 Apr 2012 01:40:15 +0000 (20:40 -0500)]
ath5k: Remove extraneous statements from ath5k_hw_proc_4word_tx_status and ath5k_hw_proc_2word_status.

Signed-off-by: Qasim Javed <qasimj@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agocfg80211/mac80211: enable proper device_set_wakeup_enable handling
Johannes Berg [Wed, 4 Apr 2012 13:05:25 +0000 (15:05 +0200)]
cfg80211/mac80211: enable proper device_set_wakeup_enable handling

In WoWLAN, we only get the triggers when we actually get
to suspend. As a consequence, drivers currently don't
know that the device should enable wakeup. However, the
device_set_wakeup_enable() API is intended to be called
when the wakeup is enabled, not later when needed.

Add a new set_wakeup() call to cfg80211 and mac80211 to
allow drivers to properly call device_set_wakeup_enable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agowireless: Remove unnecessary ; from while (0) macros
Joe Perches [Tue, 3 Apr 2012 21:46:49 +0000 (14:46 -0700)]
wireless: Remove unnecessary ; from while (0) macros

Semicolons are not necessary after macros that end in while (0).
Remove them.

Simplify the macros with tests of
do { if (foo>size) memset1; else memset2;} while (0);
to a single line memset(,,min_t(size_t, foo, size))

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k: Add more recv stats.
Ben Greear [Tue, 3 Apr 2012 16:18:59 +0000 (09:18 -0700)]
ath9k: Add more recv stats.

This adds counters in various places that can drop packets on
rx without otherwise incrementing a counter.  It also counts
some non-error cases, such as becons and fragments received.

Should help with figuring out where packets are (and are not)
dropped.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k: Add tx-failed counter.
Ben Greear [Tue, 3 Apr 2012 16:16:55 +0000 (09:16 -0700)]
ath9k: Add tx-failed counter.

This counts any failure during getting packets into
the DMA buffers, including out-of-memory, etc.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k: update to DFS pattern detector interface
Zefir Kurtisi [Tue, 3 Apr 2012 15:15:51 +0000 (17:15 +0200)]
ath9k: update to DFS pattern detector interface

Follow updates in DFS pattern detector interface:
a) use given pulse event structure
b) adapt to boolean return value of add_pulse()

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k: add DFS pattern detector instance to ath_softc
Zefir Kurtisi [Tue, 3 Apr 2012 15:15:50 +0000 (17:15 +0200)]
ath9k: add DFS pattern detector instance to ath_softc

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoath9k: add DFS pattern detector
Zefir Kurtisi [Tue, 3 Apr 2012 15:15:49 +0000 (17:15 +0200)]
ath9k: add DFS pattern detector

This adds a DFS pattern detector to ath9k. It is fed with pulse events
by the radar pulse detector and reports in place whether a pattern
was detected. On detection, the result is reported as radar event to
the DFS management component in the upper layer.

Currently the ETSI DFS domain is supported with detector lines for
the patterns defined by EN-301-893 v1.5.1. Support for FCC and JP
will be added gradually.

To include the pattern detector, ath9k must be built with support
for DFS certified config flag set (CONFIG_ATH9K_DFS_CERTIFIED).

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: clean up an ieee80211_do_open error path
Johannes Berg [Tue, 3 Apr 2012 12:45:54 +0000 (14:45 +0200)]
mac80211: clean up an ieee80211_do_open error path

Eliad's comment prompted me to look closer at
the error paths in ieee80211_do_open() and I
found one that should use the error labels.

Also add a comment about the clear_bit since
in many error cases the bit hasn't been set.

Cc: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: add improved HW queue control
Johannes Berg [Tue, 3 Apr 2012 14:28:50 +0000 (16:28 +0200)]
mac80211: add improved HW queue control

mac80211 currently only supports one hardware queue
per AC. This is already problematic for off-channel
uses since if we go off channel while the BE queue
is full and then try to send an off-channel frame
the frame will never go out. This will become worse
when we support multi-channel since then a queue on
one channel might be full, but we have to stop the
software queue for all channels. That is obviously
not desirable.

To address this problem allow drivers to register
more hardware queues, and allow them to map them to
virtual interfaces. When they stop a hardware queue
the corresponding AC software queues on the correct
interfaces will be stopped as well. Additionally,
there's an off-channel queue to solve that problem
and a per-interface after-DTIM beacon queue. This
allows drivers to manage software queues closer to
how the hardware works.

Currently, there's a limit of 16 hardware queues.
This may or may not be sufficient, we can adjust it
as needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: add explicit monitor interface if needed
Johannes Berg [Tue, 3 Apr 2012 12:35:57 +0000 (14:35 +0200)]
mac80211: add explicit monitor interface if needed

The queue mapping redesign that I'm planning to do
will break pure injection unless we handle monitor
interfaces explicitly. One possible option would
be to have the driver tell mac80211 about monitor
mode queues etc., but that would duplicate the API
since we already need to have queue assignments
handled per virtual interface.

So in order to solve this, have a virtual monitor
interface that is added whenever all active vifs
are monitors. We could also use the state of one
of the monitor interfaces, but managing that would
be complicated, so allocate separate state.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: manage AP netdev carrier state
Johannes Berg [Tue, 3 Apr 2012 08:24:00 +0000 (10:24 +0200)]
mac80211: manage AP netdev carrier state

The AP netdev is really only active when beaconing, so
manage the carrier state accordingly. Also do that for
VLAN interfaces enslaved to a given AP interface.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Check basic rates when peering
Ashok Nagarajan [Tue, 3 Apr 2012 04:21:22 +0000 (21:21 -0700)]
mac80211: Check basic rates when peering

Section 13.2.3 of IEEE 80211s standard requires BSSBasicRateSet of mesh nodes
to be identical to establish peer link.

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Modify sta_get_rates to give basic rates
Ashok Nagarajan [Tue, 3 Apr 2012 04:21:21 +0000 (21:21 -0700)]
mac80211: Modify sta_get_rates to give basic rates

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Indicate basic rates when adding rate IEs
Ashok Nagarajan [Tue, 3 Apr 2012 04:21:20 +0000 (21:21 -0700)]
mac80211: Indicate basic rates when adding rate IEs

Basic rates are added with supported rates IE and extended supported
rates IE.

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Use mandatory rates as basic rates when starting mesh
Ashok Nagarajan [Tue, 3 Apr 2012 04:21:19 +0000 (21:21 -0700)]
mac80211: Use mandatory rates as basic rates when starting mesh

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agort2x00: configure different txdesc parameters for non HT channel
Stanislaw Gruszka [Wed, 4 Apr 2012 14:15:33 +0000 (16:15 +0200)]
rt2x00: configure different txdesc parameters for non HT channel

This is needed when we are concted to non 11n AP.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoNFC: Fix the LLCP Tx fragmentation loop
Samuel Ortiz [Tue, 10 Apr 2012 17:43:03 +0000 (19:43 +0200)]
NFC: Fix the LLCP Tx fragmentation loop

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: Add missing DMA buffer unmapping for PCI drivers
Larry Finger [Mon, 26 Mar 2012 15:48:20 +0000 (10:48 -0500)]
rtlwifi: Add missing DMA buffer unmapping for PCI drivers

In https://bugzilla.kernel.org/show_bug.cgi?id=42976, a system with driver
rtl8192se used as an AP suffers from "Out of SW-IOMMU space" errors. These
are caused by the DMA buffers used for beacons never being unmapped.

This bug was also reported at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961618

Reported-and-Tested-by: Da Xue <da@lessconfused.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agortlwifi: Preallocate USB read buffers and eliminate kalloc in read routine
Larry Finger [Mon, 19 Mar 2012 20:44:31 +0000 (15:44 -0500)]
rtlwifi: Preallocate USB read buffers and eliminate kalloc in read routine

The current version of rtlwifi for USB operations uses kmalloc to
acquire a 32-bit buffer for each read of the device. When
_usb_read_sync() is called with the rcu_lock held, the result is
a "sleeping function called from invalid context" BUG. This is
reported for two cases in https://bugzilla.kernel.org/show_bug.cgi?id=42775.
The first case has the lock originating from within rtlwifi and could
be fixed by rearranging the locking; however, the second originates from
within mac80211. The kmalloc() call is removed from _usb_read_sync()
by creating a ring buffer pointer in the private area and
allocating the buffer data in the probe routine.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [This version good for 3.3+ - different patch for 3.2 - 2.6.39]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agob43: claim support for IBSS RSN
Antonio Quartulli [Sat, 31 Mar 2012 21:35:40 +0000 (00:35 +0300)]
b43: claim support for IBSS RSN

The driver now claims to support IBSS/RSN. Group key configuration in hardware
is skipped. Software encryption is used for multicast communications.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years ago{nl,cfg}80211: Support for mesh synchronization
Javier Cardona [Sat, 31 Mar 2012 18:31:33 +0000 (11:31 -0700)]
{nl,cfg}80211: Support for mesh synchronization

Report Toffset to userspace.
Let userspace select the mesh synchronization method.

Signed-off-by: Marco Porsch <marco.porsch@s2005.tu-chemnitz.de>
Signed-off-by: Pavel Zubarev <pavel.zubarev@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Implement mesh synchronization framework
Javier Cardona [Sat, 31 Mar 2012 18:31:32 +0000 (11:31 -0700)]
mac80211: Implement mesh synchronization framework

This patch adds MBSS extensible synchronization framework (Sec.
13.13.2 of IEEE Std. 802.11-2012).

The framework is implemented via an ops table which defines the
following functions:

    rx_bcn_presp() - this is called every time a mesh beacon is
received.
    adjust_tbtt() - this is called immediately before a beacon is about
to be transmitted.

The default neighbor offset synchronization defined in the standard is
implemented.  We also provide template functions for vendor specific
methods.

When neighbor offset synchronization is active (which is the default)
mesh neighbors in the same MBSS will track timing offsets to each other
and compensate clock drift.

In our tests we observed that this mesh synchronization implementation
successfully corrected drifts between stations of ~2PPM while
introducing a jitter of ~20us.

It is also possible to test this framework on mac80211_hwsim simulated
phys to see how it behaves under different topologies, over poor links,
etc.

Signed-off-by: Marco Porsch <marco.porsch@s2005.tu-chemnitz.de>
Signed-off-by: Pavel Zubarev <pavel.zubarev@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: Allow tsf increments via debugfs
Javier Cardona [Sat, 31 Mar 2012 18:31:31 +0000 (11:31 -0700)]
mac80211: Allow tsf increments via debugfs

Reading and writing back the tsf value via tsf is too slow if one wants
to make small increments to this timer.  With this change you can use
the syntax "+=<some value>" or "-=<some value>" to add or substract a
value from the tsf counter.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211_hwsim: Fill timestamp beacon at the time it is transmitted
Javier Cardona [Sat, 31 Mar 2012 18:31:30 +0000 (11:31 -0700)]
mac80211_hwsim: Fill timestamp beacon at the time it is transmitted

Generate more acurate tsf values in hwsim by setting the tsf value on
trasmitted beacons immediately before they are moved to the rx path.
Also, adjust the beacon timestamp to be the time at which the first byte
of the timestamp is transmitted.

With these changes the observed tsf offset between two hwsim/mesh peers
is 0 (unless the offset is modified via debugfs)

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agomac80211: sanity check for null SSID
Stanislaw Gruszka [Thu, 29 Mar 2012 14:30:41 +0000 (16:30 +0200)]
mac80211: sanity check for null SSID

While associated we should never have empty SSID, but life can be full
of surprises, and is allways better to print a warning than crash.

Before memcpy() in ieee80211_probereq_get() check ssid_len instead of
ssid pointer, sice pointer it always passed by "ssidie + 2" expression
to send probe functions, so practically never can be NULL.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>