Commit Graph

132750 Commits

Author SHA1 Message Date
Luis R. Rodriguez 2f92cd2e5f cfg80211: pass the regulatory_request to ignore_request
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:00 -05:00
Luis R. Rodriguez d951c1ddeb cfg80211: do not kzalloc() again for a new request on __regulatory_hint
Since we already have a regulatory request from the workqueue use that
and avoid a new kzalloc()

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:00 -05:00
Luis R. Rodriguez 28da32d7ca cfg80211: pass the regulatory_request struct in __regulatory_hint()
We were passing value by value, lets just pass the struct.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:53:00 -05:00
Luis R. Rodriguez d1c96a9a29 cfg80211: make __regulatory_hint() static
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:59 -05:00
Luis R. Rodriguez 8454086967 ath9k: follow beacon hints on reg_notifier when world roaming
If we are roaming we allow to follow beacon hints.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:59 -05:00
Luis R. Rodriguez e38f8a7a8b cfg80211: Add AP beacon regulatory hints
When devices are world roaming they cannot beacon or do active scan
on 5 GHz or on channels 12, 13 and 14 on the 2 GHz band. Although
we have a good regulatory API some cards may _always_ world roam, this
is also true when a system does not have CRDA present. Devices doing world
roaming can still passive scan, if they find a beacon from an AP on
one of the world roaming frequencies we make the assumption we can do
the same and we also remove the passive scan requirement.

This adds support for providing beacon regulatory hints based on scans.
This works for devices that do either hardware or software scanning.
If a channel has not yet been marked as having had a beacon present
on it we queue the beacon hint processing into the workqueue.

All wireless devices will benefit from beacon regulatory hints from
any wireless device on a system including new devices connected to
the system at a later time.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:59 -05:00
Luis R. Rodriguez 3fc71f775a cfg80211: enable 5 GHz world roaming channels
The current static world regulatory domain is too restrictive,
we can use some 5 GHz channels world wide so long as they do not
touch frequencies which require DFS. The compromise is we must
also enforce passive scanning and disallow usage of a mode of
operation that beacons: (AP | IBSS | Mesh)

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:59 -05:00
Luis R. Rodriguez 68798a6263 cfg80211: enable active-scan / beaconing on Ch 1-11 for world regdom
This enables active scan and beaconing on Channels 1 through 11
on the static world regulatory domain.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:58 -05:00
Luis R. Rodriguez 69b1572bd8 cfg80211: rename regdom_changed to regdom_changes() and use it
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:58 -05:00
Luis R. Rodriguez fff32c04f6 cfg80211: allow drivers that agree on regulatory to agree
This allows drivers that agree on regulatory to share their
regulatory domain.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:58 -05:00
Luis R. Rodriguez fb1fc7add5 cfg80211: comments style cleanup
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:57 -05:00
Luis R. Rodriguez fe33eb3908 cfg80211: move all regulatory hints to workqueue
All regulatory hints (core, driver, userspace and 11d) are now processed in
a workqueue.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:57 -05:00
Luis R. Rodriguez 0441d6ffc7 cfg80211: free rd on unlikely event on 11d hint
This was never happening but it was still wrong, so correct it.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:57 -05:00
Luis R. Rodriguez 915278e099 cfg80211: remove likely from an 11d hint case
Truth of the matter this was confusing people so mark it as
unlikely as that is the case now.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:56 -05:00
Luis R. Rodriguez d335fe6391 cfg80211: protect first access of last_request on 11d hint under mutex
We were not protecting last_request there is a small possible race
between an 11d hint and another routine which calls reset_regdomains()
which can prevent a valid country IE from being processed. This is
not critical as it will still be procesed soon after but locking prior
to it is correct.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:56 -05:00
Luis R. Rodriguez 806a9e3967 cfg80211: make regulatory_request use wiphy_idx instead of wiphy
We do this so later on we can move the pending requests onto a
workqueue. By using the wiphy_idx instead of the wiphy we can
later easily check if the wiphy has disappeared or not.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:56 -05:00
Luis R. Rodriguez 761cf7ecff cfg80211: add assert_cfg80211_lock() to ensure proper protection
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:56 -05:00
Luis R. Rodriguez bcf4f99b7b cfg80211: propagate -ENOMEM during regulatory_init()
Calling kobject_uevent_env() can fail mainly due to out of
memory conditions. We do not want to continue during such
conditions so propagate that as well instead of letting
cfg80211 load as if everything is peachy.

Additionally lets clarify that when CRDA is not called during
cfg80211's initialization _and_ if the error is not an -ENOMEM
its because kobject_uevent_env() failed to call CRDA, not because
CRDA failed. For those who want to find out why we also let you
do so by enabling the kernel config CONFIG_CFG80211_REG_DEBUG --
you'll get an actual stack trace.

So for now we'll treat non -ENOMEM kobject_uevent_env() failures as
non fatal during cfg80211's initialization.

CC: Greg KH <greg@kroah.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:55 -05:00
Luis R. Rodriguez ba25c14142 cfg80211: add regulatory_hint_core() to separate the core reg hint
This makes the core hint path more readable and allows for us to
later make it obvious under what circumstances we need locking or not.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:55 -05:00
Luis R. Rodriguez 80778f18c0 nl80211: disallow user requests prior to regulatory_init()
If cfg80211 is built into the kernel there is perhaps a small
time window betwen nl80211_init() and regulatory_init() where
cfg80211_regdomain hasn't yet been initialized to let the
wireless core do its work. During that rare case and time
frame (if its even possible) we don't allow user regulatory
changes as cfg80211 is working on enabling its first regulatory
domain.

To check for cfg80211_regdomain we now contend the entire operation
using the cfg80211_mutex.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:55 -05:00
Luis R. Rodriguez a1794390f1 cfg80211: rename cfg80211_drv_mutex to cfg80211_mutex
cfg80211_drv_mutex is protecting more than the driver list,
this renames it and documents what its currently supposed to
protect.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:55 -05:00
Luis R. Rodriguez 85fd129a72 cfg80211: add wiphy_idx_valid to check for wiphy_idx sanity
This will later be used by others, for now make use of it in
cfg80211_drv_by_wiphy_idx() to return early if an invalid
wiphy_idx has been provided.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:54 -05:00
Luis R. Rodriguez b5850a7a4f cfg80211: rename cfg80211_registered_device's idx to wiphy_idx
Makes it clearer to read when comparing to ifidx

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:54 -05:00
Alina Friedrichsen 79f6440c52 mac80211: Introduce a generic commit() to apply changes
This patch introduces a generic commit() function which initiate a
new network joining process. It should be called after some interface
config changes, so that the changes get applied more cleanly. Currently
set_ssid() and set_bssid() call it. Others can be added in future
patches.

In version 1 the header files was forgotten, sorry.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:54 -05:00
Michael Buesch 5f9724dd94 b43: Convert usage of b43_radio_maskset()
This patch converts code to use the new b43_radio_maskset() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, mask, set;
@@

-b43_radio_write16(dev, addr, (b43_radio_read16(dev, addr) & mask) | set);
+b43_radio_maskset(dev, addr, mask, set);
// </smpl>

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:53 -05:00
Michael Buesch 3718582a66 b43: Convert usage of b43_radio_mask()
This patch converts code to use the new b43_radio_mask() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, mask;
@@

-b43_radio_write16(dev, addr, b43_radio_read16(dev, addr) & mask);
+b43_radio_mask(dev, addr, mask);
// </smpl>

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:53 -05:00
Michael Buesch 4cf507696a b43: Convert usage of b43_radio_set()
This patch converts code to use the new b43_radio_set() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, set;
@@

-b43_radio_write16(dev, addr, b43_radio_read16(dev, addr) | set);
+b43_radio_set(dev, addr, set);
// </smpl>

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:53 -05:00
Michael Buesch 76e190cd4b b43: Convert usage of b43_phy_maskset()
This patch converts code to use the new b43_phy_maskset() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, mask, set;
@@

-b43_phy_write(dev, addr, (b43_phy_read(dev, addr) & mask) | set);
+b43_phy_maskset(dev, addr, mask, set);
// </smpl>

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:52 -05:00
Michael Buesch ac1ea3959f b43: Convert usage of b43_phy_mask()
This patch converts code to use the new b43_phy_mask() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, mask;
@@

-b43_phy_write(dev, addr, b43_phy_read(dev, addr) & mask);
+b43_phy_mask(dev, addr, mask);
// </smpl>

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:52 -05:00
Michael Buesch e59be0b529 b43: Convert usage of b43_phy_set()
This patch converts code to use the new b43_phy_set() API.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression dev, addr, set;
@@

-b43_phy_write(dev, addr, b43_phy_read(dev, addr) | set);
+b43_phy_set(dev, addr, set);
// </smpl>

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:52 -05:00
Dan Williams 9b02f419a7 libertas: use private SDIO workqueue to avoid scheduling latency
The libertas SDIO interface scheduled the packet worker, resulting in
unwanted latency for every data packet or command sent to the firmware.
Fix a bug on the SDIO probe error path too.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:51 -05:00
Michael Buesch 25d3ef59a2 b43: Implement sw scan callbacks
This implements the new sw scan callbacks in b43.
They are currently used to turn CFP update in the microcode off while scanning.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:51 -05:00
Michael Buesch 80e775bf08 mac80211: Add software scan notifiers
This adds optional notifier functions for software scan.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:51 -05:00
Michael Buesch 8821905cfb b43: Enable PCI slow clock workaround, if needed.
Enable the PCI slow clock workaround, if we're running a PCI core rev <= 10.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:50 -05:00
Michael Buesch 1cc8f476f1 b43: Honor the no-slow-clock boardflag
Do not turn off the crystal, if the boardflags tell us so.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:50 -05:00
Michael Buesch 969d15cfab b43: Fix radio host flags
This fixes initialization of some radio related hostflags.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:50 -05:00
Michael Buesch 2d071ca50e b43: Add slot count compiletime assertion
This adds a compiletime assertion for a recently introduced
assumption on the slot counts.
The tx header cache handling code assumes that the TX slot count
can be divided evenly by the number of TX slots per frame.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:50 -05:00
Sujith 20977d3e68 ath9k: Add appropriate ANI values for AP mode
The short calibration interval is different for AP
mode, fix this. Also, the timer should be rearmed in
the calibration routine during scanning.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:49 -05:00
Sujith db0f41f556 ath9k: Fix PCI shutdown sequence
pci_release_region() has to be called after the device
has been disabled. Also remove a stray __init attribute.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:49 -05:00
Sujith 8147f5de7a ath9k: Fix bug in EEPROM chainmask retrieval
Using wrong chainmasks would have an adverse impact on performance.
This patch fixes chainmask retrieval for non-PCIE cards.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:49 -05:00
Sujith 9e71279084 ath9k: Add PER to RC debug statistics
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:49 -05:00
Sujith d9ae96d94a ath9k: Remove multiple macro occurrences
OLC_FOR_AR9280_20_LATER is defined in multiple places,
move it to a common location.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:48 -05:00
Alina Friedrichsen f452a63d1e ath9k: Don't reset TSF after scanning automatically
Reset automatically the TSF on re-enabling beaconing after scanning
in IBSS mode causes several problems. For example a new created IBSS
network can't age before an other node has joined, because scans are
done automatically in that case. And several other strange bugs more...

The TSF reset is done manually in the higher level mac80211 code in
the cases were it's needed, so we don't need to do it here.

Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:48 -05:00
Michael Buesch bdceeb2dad b43: Optimize DMA buffers
In the old days we used one slot per frame. But when we changed that to 2,
we didn't raise the overall slot count. Which resulted in an effective
division of two to the number of slots.

Double the number of TX slots, so we have an effective hardware queue
of 128 frames per QoS queue.

Also optimize the TX header cache handling. We don't need a cached TX header
for slots that will never carry an actual header.
So we reduce the memory consumption of the cache by 50%.

So as a net result we end up with more or less the same memory usage before
and after this patch (except a few tiny meta structures), but have twice
the number of TX slots available.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:48 -05:00
Michael Buesch 8eccb53f1b b43: Fix DMA buffer size handling
This fixes hidden bugs in the size handling of the DMA buffers.
This sets the RX buffer size to the theoretical max packet size and
fixes passing of the size values to the device (must not subtract the header offset).

These bugs are hidden and don't actually trigger due to the magic +100
offset for the buffer size.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:47 -05:00
Michael Buesch ca2d559e1a b43: Move DMA stop sanity check
Move the DMA stop sanity check up a few lines, so it's actually
theoretically possible to trigger. (But it still shouldn't trigger, of course).

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:47 -05:00
Vasanthakumar Thiagarajan dbaaa147d6 ath9k: Filter out beacons from other BSS in STA mode
Passing beacons received from other BSS to s/w in non-scanning
state is unnecessary in STA mode. This patch filters them out in
h/w.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27 14:52:47 -05:00
Fenghua Yu 96891ceeda iwlwifi: dma mapping read and write changes
When iwlwifi runs on IOMMU, IOMMU generates a lot of PTE write faults
because PTE write bit is not set on some of PTE's. This is because iwlwifi
driver calls DMA mapping with PCI_DMA_TODEVICE which is read only in mapping
PTE. But iwlwifi device actually writes to the mapped page to update its contents.
This issue is not exposed in swiotlb. But VT-d hardware can capture this fault and
stop the fault transaction.

The iwl TX command contains a scratch field that is updated by uCode to
indicate retry counts. For 5000 series the patch is required also for
regular frames, but this patch does not differenciate.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-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>
2009-02-27 14:52:47 -05:00
Abhijeet Kolekar 7dc45f25d3 iwl3945: use SW rfkill from iwlwifi
Patch unifies use of SW rfkill between 3945 and agn driver.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@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>
2009-02-27 14:52:46 -05:00
Abhijeet Kolekar f17d08a657 iwl3945: use iwl_isr
iwl3945 uses iwl_isr and deletes duplicated iwl3945_isr.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@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>
2009-02-27 14:52:46 -05:00