| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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When we process a frame, we currently just match it
to the work struct by the MAC addresses, and not by
the work type. This means that we can end up doing
the work for an association request item when (for
whatever reason) we receive another frame type, for
example a probe response. Processing the wrong type
of frame will lead to completely invalid data being
processed, and will lead to various problems like
thinking the association was successful even if the
AP never sent an assocation response.
Fix this by making each processing function check
that it is invoked for the right work struct type
only and continue processing otherwise (and drop
frames that we didn't expect).
This bug was uncovered during the debugging for
https://bugzilla.kernel.org/show_bug.cgi?id=15862
but doesn't seem to be the cause for any of the
various problems reported there.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Preparation for futher cleanups in the area of properly maintaining the skb
data without fiddling with the skb->data pointer.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This allows for specific identification of beacons in the debugfs
frame stream.
Preparation for later differences between dumped TX frames and dumped
beacons.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The handling of tx descriptors for beacons can be simplified by updating
write_tx_desc implementations of each driver to write directly to the
queue entry descriptor instead of to a provided memory area.
This is also a preparation for further clean ups where descriptors are
properly reserved in the skb instead of fiddling with the skb data
pointer.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Where possible, write the tx descriptor words from start to end, to
follow a logical ordering of words.
Where this is not possible (in rt2400pci, rt2500pci and rt61pci) add
a comment as to why word 0 needs to be written last.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The buffer address descriptor word is not part of the TXINFO structure
needed for beacons. The current writing of that word for beacons is
therefore an out-of-bounds write.
Fix this by only writing the buffer address descriptor word for TX
queues.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The skb frame descriptor is called everywhere skbdesc, except in one
place in rt2x00debug_dump_frame. Change that occurence to have
consistent naming.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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USB Network Adapter
* add support for the Qwest/Actiontec 802AIN Wireless N USB Network Adapter.
lsusb identifies the device as: "ID 1668:1200 Actiontec Electronics, Inc. [hex]"
usb_modeswitch package and appropriate rules are required to switch
the device from "ID 0ace:20ff ZyDas"
Changes-licensed-under: GPL
Signed-off-by: Steve Tanner <steve.tanner@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Drop cast on the result of kmalloc and similar functions.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
type T;
@@
- (T *)
(\(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...))
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Paged RX skb patch broke the defragmentation. We need to read hdr again
after linearization.
It fixes following bug
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2194
Signed-off-by: Zhu, Yi <yi.zhu@intel.com>
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Remove the double swapping of the descriptor data structure, instead
keep it little-endian (native format of the eeprom data), and byteswap
on access.
This allows sparse to verify endian access to the eeprom struct.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Use ENDPOINT_MAX instead of HST_ENDPOINT_MAX.
This fixes a stack corruption issue.
This is based on a patch sent by Dan Carpenter <error27@gmail.com>.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The ready message from the target could be processed
before the host HW init has completed. In this case,
htc_process_target_rdy() would assume the target has timed
out, when it hasn't. Fix this by checking if the target
has sent the ready message properly.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The HTC state has to be setup before initializing
the target because the ready message could possibly
come before the control endpoints in HTC have been
identified.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The URBs have to be allocated before uploading
the firmware to the target. This is needed to process
the target ready message properly.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Since ->sta_notify() can sleep, protect
the callback with a mutex.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Check the mode in channel switch ie for either 0 or 1 on transmission.
A channel switch mode set to 1 means that the STA in a BSS to which the
frame containing the element is addressed shall transmit no further
frames within the BSS until the scheduled channel switch.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This adds support for offloading the channel switch
operation to devices that support such, typically
by having specific firmware API for it. The reasons
for this could be that the firmware provides better
timing or that regulatory enforcement done by the
device requires special handling of CSAs.
In order to allow drivers to specify the timing to
the device, the new channel_switch callback will
pass through the received frame's mactime, where
available.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Don't send them for further processing.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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These changes include:
* For PAPRD, the TXRF3.capdiv5G, TXRF3.rdiv5G and TXRF3.rdiv2G
are set to 0x0, the TXRF6.capdiv2G is set to 0x2 for all
three chains.
* The d2cas5G/d3cas5G/d4cas5G was updated to 4/4/4 in lowest_ob_db
Tx gain table.
* To improve DPPM, three parameters were updated (Released from Madhan):
1. RANGE_OSDAC is set to 0x1 for 2G, 0x0 for 5G
2. offsetC1 is set to 0xc
3. inv_clk320_adc is set to 0x1
* To reduce PHY error(from spur), cycpwr_thr1 and cycpwr_thr1_ext
are increased to 0x8 at 2G.
* The 2G Rx gain tables are updated with mixer gain setting 3,1,0.
The new checksums yield:
initvals -f ar9003
0x00000000c2bfa7d5 ar9300_2p0_radio_postamble
0x00000000ada2b114 ar9300Modes_lowest_ob_db_tx_gain_table_2p0
0x00000000e0bc2c84 ar9300Modes_fast_clock_2p0
0x00000000056eaf74 ar9300_2p0_radio_core
0x0000000000000000 ar9300Common_rx_gain_table_merlin_2p0
0x0000000078658fb5 ar9300_2p0_mac_postamble
0x0000000023235333 ar9300_2p0_soc_postamble
0x0000000054d41904 ar9200_merlin_2p0_radio_core
0x00000000748572cf ar9300_2p0_baseband_postamble
0x000000009aa5a0a4 ar9300_2p0_baseband_core
0x000000003df9a326 ar9300Modes_high_power_tx_gain_table_2p0
0x000000001cfba124 ar9300Modes_high_ob_db_tx_gain_table_2p0
0x0000000011302700 ar9300Common_rx_gain_table_2p0
0x00000000e3eab114 ar9300Modes_low_ob_db_tx_gain_table_2p0
0x00000000c9d66d40 ar9300_2p0_mac_core
0x000000001e1d0800 ar9300Common_wo_xlna_rx_gain_table_2p0
0x00000000a0c54980 ar9300_2p0_soc_preamble
0x00000000292e2544 ar9300PciePhy_pll_on_clkreq_disable_L1_2p0
0x000000002d3e2544 ar9300PciePhy_clkreq_enable_L1_2p0
0x00000000293e2544 ar9300PciePhy_clkreq_disable_L1_2p0
Cc: Don Breslin <don.breslin@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Jumbo frames are not supported, and if they are seen it is likely
a bogus frame so just silently discard them instead of warning on
them all time. Also, instead of dropping them immediately though
move the check *after* we check for all sort of frame errors. This
should enable us to discard these frames if the hardware picks
other bogus items first. Lets see if we still get those jumbo
counters increasing still with this.
Jumbo frames would happen if we tell hardware we can support
a small 802.11 chunks of DMA'd frame, hardware would split RX'd
frames into parts and we'd have to reconstruct them in software.
This is done with USB due to the bulk size but with ath5k we
already provide a good limit to hardware and this should not be
happening.
This is reported quite often and if it fills the logs then this
needs to be addressed and to avoid spurious reports.
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The goto and the break are equivelent. I removed the goto in memory of
Edsger Dijkstra who famously hated gotos and who would have been eighty
years old next Tuesday.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The "(wl == NULL)" test doesn't work here because "wl" is always
non-null. The intent of the code is to return if the interface
was not supported by the driver.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We should start the loop consistently with the "wl_lock" lock held.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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During a hw restart, mac80211 will attempt to
reconfigure all stations. Currently, that fails
and leads to warnings because we still have the
stations marked active. Therefore, clear all
stations when doing down.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Remove the check before invoking iwl_set_ht_add_station(),
since neither of the conditions in this check makes sense,
as either we pass in a NULL ht_info (first branch) or in
the IBSS case an ht_info with ht_enabled=false.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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This function is now only used for the special
IBSS BSSID station, so rename it to indicate
this. The new name is iwl_add_bssid_station.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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4965 code is the only thing that now still
needs iwl_find_station(), so move it there
and make it static. Everything else can
rely on the station data passed by mac80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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With the station ID being stored in the
station struct, which mac80211 gives us
for TKIP phase 1 key updates, we can also
remove the use of iwl_find_station() in
that code path.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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With the station ID being stored in the
station struct, which mac80211 gives us
for aggregation callbacks, we can also
remove the use of iwl_find_station() in
those code paths.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Since we now store the station ID in each station
struct, many places need not look at the station
table any more since they can just pull the station
ID out of the struct. Remove iwl_get_sta_id() and
use iwl_sta_id() instead as appropriate.
This reduces the amount of code needed to find the
right station significantly, and works since
mac80211 passes the station only after it has been
fully initialised, ie. even if TX races with
station addition it will only be passed to TX once
the addition is complete.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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In places where the station struct is
guaranteed to exist (presumably), use
this helper to get the station ID out
of it (and warn if there's no station
struct after all).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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mac80211 allows us to store private data per
station, so put the station ID there. This
allows us to avoid the station ID lookup when
removing regular stations. To also be able to
avoid the lookup to remove the special IBSS
BSSID station, track its ID in the per-vif
private data.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Provide comments for newly added cfg parameters
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Move "tx power per chain" into ucode_tx_stats, it is debugging
information provided by uCode as part of statistics notification.
The "tx power per chain" parameters are optional parameters which only
supported by 6000 series device today; those are reserved fields for all
the other devices.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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When station is using an HT channel to communicate to AP and communication
is lost then driver will first be notified that channel is not an HT
channel anymore before AP station is removed. A consequence of that is that
the driver will know that it is not communicating on HT anymore, but the
rate scaling table is still under the impression it is operating in HT. Any
time after driver has been notified channel is not HT anymore there will
thus be a firmware SYSASSERT when the current active LQ command is sent.
A workaround for this issue is to not send a LQ command in the short time between
being notified channel is not HT anymore and rate scaling table being
updated.
This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2173
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Currently, the broadcast station is managed along
with the interface type, rather than always being
present. That leads to a bug with injection -- it
is currently not possible to inject frames when
the only virtual interface is a monitor, because
in that the required broadcast station is missing.
Additionally, allocating and deallocating the
broadcast station's LQ all the time is wasteful,
and the code to support this is fairly complex.
So this changes completely the way we manage the
broadcast station. Rather than manage it along
with any interface, we now allocate it when we
bring the device up, and remove it again when we
bring the device down. When we bring the device
up, we don't immediately program the broadcast
station into it, instead we just mark it active
and rely on the next restore cycle to upload it
to the device. This works because an unassociated
RXON is always required at least once to set up
device parameters, which implies a reprogramming
of stations into the device.
As we now manage all stations properly, there no
longer is a need for forcing a clearing of them
via iwl_clear_ucode_stations(), which can become
a lot simpler.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Rename iwl_sta_init_lq to iwl_sta_alloc_lq and
move sending it out into the caller.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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The "is_ap" argument to iwl_sta_init_lq is never true,
so it and the corresponding code can be removed. However,
it needs to have the station ID because it is also used
for the IBSS BSSID station, and that doesn't have the
broadcast ID.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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The bssid member of struct iwl_priv is now
only used by 3945 code, so note that. It
shouldn't be used by any other code in the
future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Pass the virtual interface pointer to iwl_ht_conf()
so it doesn't need to rely on iw_mode and other
global variables.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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This check is not useful, since we now no
longer dereference priv->vif at this spot.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Most of the TX aggregation handling can be passed
the virtual interface directly instead of having
to rely on priv->vif.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Rather than keeping every bit of information
around in priv and the virtual interface, add
a virtual interface to many functions and use
the information directly from it.
This removes beacon_int, assoc_capability and
assoc_id from struct iwl_priv.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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