16 Mar, 2012
1 commit
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The header includes a lot of stuff, and
it in turn gets a lot of use just for the basic "struct device"
which appears so often.Clean up the users as follows:
1) For those headers only needing "struct device" as a pointer
in fcn args, replace the include with exactly that.2) For headers not really using anything from device.h, simply
delete the include altogether.3) For headers relying on getting device.h implicitly before
being included themselves, now explicitly include device.h4) For files in which doing #1 or #2 uncovers an implicit
dependency on some other header, fix by explicitly adding
the required header(s).Any C files that were implicitly relying on device.h to be
present have already been dealt with in advance.Total removals from #1 and #2: 51. Total additions coming
from #3: 9. Total other implicit dependencies from #4: 7.As of 3.3-rc1, there were 110, so a net removal of 42 gives
about a 38% reduction in device.h presence in include/*Signed-off-by: Paul Gortmaker
09 Jan, 2012
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits)
Kconfig: acpi: Fix typo in comment.
misc latin1 to utf8 conversions
devres: Fix a typo in devm_kfree comment
btrfs: free-space-cache.c: remove extra semicolon.
fat: Spelling s/obsolate/obsolete/g
SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
tools/power turbostat: update fields in manpage
mac80211: drop spelling fix
types.h: fix comment spelling for 'architectures'
typo fixes: aera -> area, exntension -> extension
devices.txt: Fix typo of 'VMware'.
sis900: Fix enum typo 'sis900_rx_bufer_status'
decompress_bunzip2: remove invalid vi modeline
treewide: Fix comment and string typo 'bufer'
hyper-v: Update MAINTAINERS
treewide: Fix typos in various parts of the kernel, and fix some comments.
clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
leds: Kconfig: Fix typo 'D2NET_V2'
sound: Kconfig: drop unknown symbol ARCH_CLPS7500
...Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
kconfig additions, close to removed commented-out old ones)
20 Dec, 2011
1 commit
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When a peer changes SMPS state we should update
rate control so it doesn't have to detect it by
itself. It can't detect "dynamic" mode anyway
since that just requires rts-cts handshaking.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
02 Dec, 2011
1 commit
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The below patch fixes some typos in various parts of the kernel, as well as fixes some comments.
Please let me know if I missed anything, and I will try to get it changed and resent.Signed-off-by: Justin P. Mattock
Acked-by: Randy Dunlap
Signed-off-by: Jiri Kosina
22 Nov, 2011
1 commit
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Drivers can usually handle fragmented packets
much easier when they get the entire list of
fragments at once. The only thing they need to
do is keep enough space on the queues for up
to ten fragments of a single MSDU.This allows them to implement this with a new
operation tx_frags.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
12 Nov, 2011
1 commit
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Allow setting a probe response template for an interface operating in
AP mode. Low level drivers are notified about changes in the probe
response template and are able to retrieve a copy of the current probe
response. This data can, for example, be uploaded to hardware as a
template.Signed-off-by: Guy Eilam
Signed-off-by: Arik Nemtsov
Signed-off-by: John W. Linville
10 Nov, 2011
3 commits
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Implement the socket wifi TX status error
queue reflection in mac80211.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
Drivers that need to drop a frame before it
can be transmitted will usually simply free
that frame. This is currently fine, but in
the future it'll be needed to tell mac80211
about this case, so add a new routine that
frees a TX skb.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
09 Nov, 2011
1 commit
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Some cards can generate CCMP IVs in HW, but require the space for the IV
to be pre-allocated in the frame at the correct offset. Add a key flag
that allows us to achieve this.Signed-off-by: Arik Nemtsov
Signed-off-by: John W. Linville
05 Nov, 2011
1 commit
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The warning really shouldn't happen, but until we
find the reason why it does don't spew it all the
time, just once is enough to know we've hit it.Reported-by: Linus Torvalds
Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
15 Oct, 2011
1 commit
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mac80211 already filled in the MCS rate info for rx'ed frames but tx'ed
frames that are sent to a monitor interface during the status callback
lack this information.Add the radiotap fields for MCS info to ieee80211_tx_status_rtap_hdr
and populate them when sending tx'ed frames to the monitors.The needed headroom is only extended by one byte since we don't include
legacy rate information in the rtap header for HT frames.Signed-off-by: Helmut Schaa
Signed-off-by: John W. Linville
12 Oct, 2011
2 commits
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We can now move the radiotap header parsing into
ieee80211_monitor_start_xmit(). This moves it out of
the hotpath, and also helps the code since now the
radiotap header will no longer be present in
ieee80211_xmit() etc. which is easier to understand.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
The purpose of this is two-fold:
1) by moving it out of tx_data.flags, we can in
another patch move the radiotap parsing so it
no longer is in the hotpath
2) if a device implements fragmentation but can
optionally skip it, the radiotap request for
not doing fragmentation may be honouredSigned-off-by: Johannes Berg
Signed-off-by: John W. Linville
04 Oct, 2011
2 commits
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tx params should be configured per interface.
add ieee80211_vif param to the conf_tx callback,
and change all the drivers that use this callback.The following spatch was used:
@rule1@
struct ieee80211_ops ops;
identifier conf_tx_op;
@@
ops.conf_tx = conf_tx_op;@rule2@
identifier rule1.conf_tx_op;
identifier hw, queue, params;
@@
conf_tx_op (
- struct ieee80211_hw *hw,
+ struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u16 queue,
const struct ieee80211_tx_queue_params *params) {...}Signed-off-by: Eliad Peller
Signed-off-by: John W. Linville -
Recently mac80211 was changed to use nullfunc instead of probe
request for connection monitoring for tx ack status reporting
hardwares. Sometimes in congested network, STA got disconnected
quickly after the association. It was observered that the rate
control was not adopted to environment due to minimal transmission.As the nullfunc are used for monitoring purpose, these frames should
not be sacrificed for rate control updation. So it is better to send
the monitoring null func frames at minimum rate that could help to
retain the connection.Signed-off-by: Rajkumar Manoharan
Signed-off-by: John W. Linville
01 Oct, 2011
9 commits
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With the addition of uAPSD and driver buffering
the powersave handling has gotten quite complex.
Add a section to the documentation to explain it
for anyone wanting to implement it.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
iwlwifi has a separate EOSP notification from
the device, and to make use of that properly
it needs to be passed to mac80211. To be able
to mix with tx_status_irqsafe and rx_irqsafe
it also needs to be an "_irqsafe" version in
the sense that it goes through the tasklet,
the actual flag clearing would be IRQ-safe
but doing it directly would cause reordering
issues.This is needed in the case of a P2P GO going
into an absence period without transmitting
any frames that should be driver-released as
in this case there's no other way to inform
mac80211 that the service period ended. Note
that for drivers that don't use the _irqsafe
functions another version of this function
will be required.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
iwlwifi needs to know the number of frames that are
going to be sent to a station while it is asleep so
it can properly handle the uCode blocking of that
station.Before uAPSD, we got by by telling the device that
a single frame was going to be released whenever we
encountered IEEE80211_TX_CTL_POLL_RESPONSE. With
uAPSD, however, that is no longer possible since
there could be more than a single frame.To support this model, add a new callback to notify
drivers when frames are going to be released.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
If a PS-poll frame is retried (but was received)
there is no way to detect that since it has no
sequence number. As a consequence, the standard
asks us to not react to PS-poll frames until the
response to one made it out (was ACKed or lost).Implement this by using the WLAN_STA_SP flags to
also indicate a PS-Poll "service period" and the
IEEE80211_TX_STATUS_EOSP flag for the response
packet to indicate the end of the "SP" as usual.We could use separate flags, but that will most
likely completely confuse drivers, and while the
standard doesn't exclude simultaneously polling
using uAPSD and PS-Poll, doing that seems quite
problematic.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
Add uAPSD support to mac80211. This is probably not
possible with all devices, so advertising it with
the cfg80211 flag will be left up to drivers that
want it.Due to my previous patches it is now a fairly
straight-forward extension. Drivers need to have
accurate TX status reporting for the EOSP frame.
For drivers that buffer themselves, the provided
APIs allow releasing the right number of frames,
but then drivers need to set EOSP and more-data
themselves. This is documented in more detail in
the new code itself.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
If there are frames for a station buffered in
the driver, mac80211 announces those in the TIM
IE but there's no way to release them. Add new
API to release such frames and use it when the
station polls for a frame.Since the API will soon also be used for uAPSD
it is easily extensible.Note that before this change drivers announcing
driver-buffered frames in the TIM bit actually
will respond to a PS-Poll with a potentially
lower priority frame (if there are any frames
buffered in mac80211), after this patch a driver
that hasn't been changed will no longer respond
at all. This only affects ath9k, which will need
to be fixed to implement the new API.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
For uAPSD support we'll need to have per-AC PS
buffers. As this is a major undertaking, split
the buffers before really adding support for
uAPSD. This already makes some reference to the
uapsd_queues variable, but for now that will
never be non-zero.Since book-keeping is complicated, also change
the logic for keeping a maximum of frames only
and allow 64 frames per AC (up from 128 for a
station).Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
For uAPSD implementation, it is necessary to know on
which ACs frames are buffered. mac80211 obviously
knows about the frames it has buffered itself, but
with aggregation many drivers buffer frames. Thus,
mac80211 needs to be informed about this.For now, since we don't have APSD in any form, this
will unconditionally set the TIM bit for the station
but later with uAPSD only some ACs might cause the
TIM bit to be set.ath9k is the only driver using this API and I only
modify it in the most basic way, it won't be able
to implement uAPSD with this yet. But it can't do
that anyway since there's no way to selectively
release frames to the peer yet.Since drivers will buffer frames per TID, let them
inform mac80211 on a per TID basis, mac80211 will
then sort out the AC mapping itself.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
Relocate the mesh implementation of adding the (extended) supported
rates IE to util.c, anticipating its use by other parts of mac80211.Signed-off-by: Arik Nemtsov
Cc: Kalyan C Gaddam
Signed-off-by: John W. Linville
28 Sep, 2011
2 commits
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Whenever the scan request or tx_mgmt is requesting not to
use CCK rate for managemet frames through
NL80211_ATTR_TX_NO_CCK_RATE attribute, then mac80211 should
select appropriate least non-CCK rate. This could help to
send P2P probes and P2P action frames at non 11b rates
without diabling 11b rates globally.Cc: Jouni Malinen
Signed-off-by: Rajkumar Manoharan
Signed-off-by: John W. Linville -
TSF can be kept per vif.
Add ieee80211_vif param to set/get/reset_tsf, and move
the debugfs entries to the per-vif directory.Update all the drivers that implement these callbacks.
Signed-off-by: Eliad Peller
Signed-off-by: John W. Linville
21 Sep, 2011
1 commit
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Signed-off-by: Alexander Simon
Signed-off-by: John W. Linville
17 Sep, 2011
1 commit
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Add/fix some missing docs.
Signed-off-by: Eliad Peller
Signed-off-by: John W. Linville
15 Sep, 2011
2 commits
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Set SSID information from nl80211 beacon parameters. Advertise changes
in SSID to low level drivers.Signed-off-by: Arik Nemtsov
Signed-off-by: John W. Linville -
To properly maintain the peer's block ack window, the driver needs to be
able to control the new starting sequence number that is sent along with
the BlockAckReq frame.Signed-off-by: Felix Fietkau
Signed-off-by: John W. Linville
14 Sep, 2011
1 commit
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When this flag is set, Tx A-MPDU sessions will not be started by
mac80211. This flag is required for devices that support Tx A-MPDU setup
in hardware.Signed-off-by: Arik Nemtsov
Signed-off-by: John W. Linville
26 Aug, 2011
1 commit
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Add uapsd_queues and max_sp fields to ieee80211_sta.
These fields might be needed by low-level drivers in
order to configure the AP.Signed-off-by: Eliad Peller
Signed-off-by: John W. Linville
09 Aug, 2011
2 commits
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For iwlwifi, I decided not to use this API since
it just increased the complexity for little gain.
Since nobody else intends to use it, let's kill
it again. If anybody later needs to have it, we
can always revive it then.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
linux/wireless.h is for wireless extensions only, so
mac80211 shouldn't include it since it uses cfg80211.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
21 Jul, 2011
1 commit
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In P2P client mode, the GO (AP) to connect to might
have periods of time where it is not available due
to powersave. To allow the driver to sync with it
and send frames to the GO only when it is available
add a new callback tx_sync (and the corresponding
finish_tx_sync). These callbacks can sleep unlike
the actual TX.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
16 Jul, 2011
2 commits
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ieee80211_iter_keys() currently returns keys in
the backward order they were installed in, which
is a bit confusing. Add them to the tail of the
key list to make sure iterations go in the same
order that keys were originally installed in.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
When the driver wants to pre-program the TKIP
RX phase 1 key, it needs to be able to obtain
it for the peer's TA. Add API to allow it to
generate it.The generation uses a dummy on-stack context
since it doesn't know the RX queue.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
14 Jul, 2011
1 commit
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In WoWLAN, devices may use crypto keys for TX/RX
and could also implement GTK rekeying. If the
driver isn't able to retrieve replay counters and
similar information from the device upon resume,
or if the device isn't responsive due to platform
issues, it isn't safe to keep the connection up
as GTK rekey messages from during the sleep time
could be replayed against it.The only protection against that is disconnecting
from the AP. Modifying mac80211 to do that while
it is resuming would be very complex and invasive
in the case that the driver requires a reconfig,
so do it after it has resumed completely. In that
case, however, packets might be replayed since it
can then only happen after TX/RX are up again, so
mark keys for interfaces that need to disconnect
as "tainted" and drop all packets that are sent
or received with those keys.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
12 Jul, 2011
1 commit
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mac80211 maintains a running average of the RSSI when a STA
is associated to an AP. Report threshold events to any driver
that has registered callbacks for getting RSSI measurements.Implement callbacks in mac80211 so that driver can set thresholds.
Add callbacks in mac80211 which is invoked when an RSSI threshold
event occurs.mac80211: add tracing to rssi_reports api and remove extraneous fn argument
mac80211: scale up rssi thresholds from driver by 16 before storingSigned-off-by: Meenakshi Venkataraman
Signed-off-by: Wey-Yi Guy
Signed-off-by: John W. Linville
