27 Jan, 2015
4 commits
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This allows mac80211 to configure BIP-GMAC-128 and BIP-GMAC-256 to the
driver and also use software-implementation within mac80211 when the
driver does not support this with hardware accelaration.Signed-off-by: Jouni Malinen
Signed-off-by: Johannes Berg -
This allows mac80211 to configure BIP-CMAC-256 to the driver and also
use software-implementation within mac80211 when the driver does not
support this with hardware accelaration.Signed-off-by: Jouni Malinen
Signed-off-by: Johannes Berg -
This allows mac80211 to configure CCMP-256 to the driver and also use
software-implementation within mac80211 when the driver does not support
this with hardware accelaration.Signed-off-by: Jouni Malinen
[squash ccmp256 -> mic_len argument change]
Signed-off-by: Johannes Berg -
This allows mac80211 to configure GCMP and GCMP-256 to the driver and
also use software-implementation within mac80211 when the driver does
not support this with hardware accelaration.Signed-off-by: Jouni Malinen
[remove a spurious newline]
Signed-off-by: Johannes Berg
23 Jan, 2015
1 commit
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Control per packet Transmit Power Control (TPC) in lower drivers
according to TX power settings configured by the user. In particular TPC is
enabled if value passed in enum nl80211_tx_power_setting is
NL80211_TX_POWER_LIMITED (allow using less than specified from userspace),
whereas TPC is disabled if nl80211_tx_power_setting is set to
NL80211_TX_POWER_FIXED (use value configured from userspace)Signed-off-by: Lorenzo Bianconi
Signed-off-by: Johannes Berg
16 Jan, 2015
1 commit
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For some reason, we made the bandwidth separate flags, which
is rather confusing - a single rate cannot have different
bandwidths at the same time.Change this to no longer be flags but use a separate field
for the bandwidth ('bw') instead.While at it, add support for 5 and 10 MHz rates - these are
reported as regular legacy rates with their real bitrate,
but tagged as 5/10 now to make it easier to distinguish them.In the nl80211 API, the flags are preserved, but the code
now can also clearly only set a single one of the flags.Signed-off-by: Johannes Berg
15 Jan, 2015
1 commit
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These rates are treated the same as 160 MHz in the spec,
so it makes no sense to distinguish them. As no driver
uses them yet, this is also not a problem, just remove
them.Signed-off-by: Johannes Berg
14 Jan, 2015
2 commits
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local->radar_detect_enabled should tell whether
radar_detect is enabled on any interface belonging
to local.However, it's not getting updated correctly
in many cases (actually, when testing with hwsim
it's never been set, even when the dfs master
is beaconing).Instead of handling all the corner cases
(e.g. channel switch), simply check whether
radar detection is enabled only when needed,
instead of caching the result.Signed-off-by: Eliad Peller
Signed-off-by: Johannes Berg -
When roaming / suspending, it makes no sense to wait until
the transmit queues of the device are empty. In extreme
condition they can be starved (VO saturating the air), but
even in regular cases, it is pointless to delay the roaming
because the low level driver is trying to send packets to
an AP which is far away. We'd rather drop these packets and
let TCP retransmit if needed. This will allow to speed up
the roaming.For suspend, the explanation is even more trivial.
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
15 Dec, 2014
1 commit
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The power level might have been set, but as the interface was idle
it might not have taken effect yet. Ask the driver to check the
power level when starting up an AP so that in this case the correct
power level is used in case the device/driver can only set it when
the interface is actually active.Signed-off-by: Johannes Berg
20 Nov, 2014
3 commits
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Implement the cfg80211 TDLS channel switch ops and introduce new mac80211
ones for low-level drivers.
Verify low-level driver support for the new ops when using the relevant
wiphy feature bit. Also verify the peer supports channel switching before
passing the command down.Add a new STA flag to track the off-channel state with the TDLS peer and
make sure to cancel the channel-switch if the peer STA is unexpectedly
removed.Signed-off-by: Arik Nemtsov
Signed-off-by: Arik Nemtsov
Signed-off-by: Johannes Berg -
The AP or peer can prohibit TDLS channel switch via a bit in the
extended capabilities IE. Parse the IE and track this bit. Set an
appropriate STA flag if both the AP and peer STA support TDLS
channel-switching.Add the new STA flag and the missing TDLS_INITIATOR to debugfs.
Signed-off-by: Arik Nemtsov
Signed-off-by: Arik Nemtsov
Signed-off-by: Johannes Berg -
Instead of passing the band as a parameter to ieee80211_xmit()
and ieee80211_tx(), move it outside of the two functions while
making sure info->band is set up before calling them.This removes the parameter and simplifies the follow commit.
Signed-off-by: Johannes Berg
Signed-off-by: Arik Nemtsov
Signed-off-by: Johannes Berg
10 Nov, 2014
2 commits
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Send a channel switch notification to userspace when a channel switch
is requested or when we react to a remote CSA.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
There was a mistake when merging commit 6d027bcc (mac80211: add
pre_channel_switch driver operation) for upstream. The assignment of
the values in the ch_switch structure came below the call to
drv_pre_channel_switch. Fix the order.Fixes: 6d027bcc (mac80211: add pre_channel_switch driver operation)
Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg
04 Nov, 2014
3 commits
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This patch adds 802.11p OCB (Outside the Context of a BSS) mode
support.When communicating in OCB mode a mandatory wildcard BSSID
(48 '1' bits) is used.The EDCA parameters handling function was changed to support
802.11p specific values.The insertion of a newly discovered STAs is done in the similar way
as in the IBSS mode -- through the deferred insertion.The OCB mode uses a periodic 'housekeeping task' for expiration of
disconnected STAs (in the similar manner as in the MESH mode).New Kconfig option for verbose OCB debugging outputs is added.
Signed-off-by: Rostislav Lisovy
Signed-off-by: Johannes Berg -
This patch adds new iface type (NL80211_IFTYPE_OCB) representing
the OCB (Outside the Context of a BSS) mode.
When establishing a connection to the network a cfg80211_join_ocb
function is called (particular nl80211_command is added as well).
A mandatory parameters during the ocb_join operation are 'center
frequency' and 'channel width (5/10 MHz)'.Changes done in mac80211 are minimal possible required to avoid
many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB'
not handled in switch) during compilation. Full functionality
(where needed) is added in the following patch.Signed-off-by: Rostislav Lisovy
Signed-off-by: Johannes Berg -
The configured tx power is often limited by hardware capabilities,
channel settings, antenna configuration, etc.Signed-off-by: Felix Fietkau
[fix tracing compilation]
Signed-off-by: Johannes Berg
31 Oct, 2014
1 commit
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Use codespell to find spelling errors.
Signed-off-by: Stephen Hemminger
Signed-off-by: Johannes Berg
22 Oct, 2014
1 commit
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Use the currently existing APIs between mac80211 and the low
level driver to implement WMM admission control.The low level driver needs to report the media time used by
each transmitted packet in ieee80211_tx_status. Based on that
information, mac80211 will modify the QoS parameters of the
admission controlled Access Category when the limit is
reached. Once the original QoS parameters can be restored,
mac80211 will do so.One issue with this approach is that management frames will
also erroneously be downgraded, but the upside is that the
implementation is simple. In the future, it can be extended
to driver- or device-based implementations that are better.Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
21 Oct, 2014
2 commits
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This was needed to avoid conflicts in the minstrel changes.
Signed-off-by: Johannes Berg
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This showed up as a sparse warning (with higher verbosity) and is
certainly correct - the change flags should be unsigned. It's not
that important since high flag numbers aren't used and bitwise
operations would still work.Signed-off-by: Johannes Berg
20 Oct, 2014
1 commit
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This makes it easier to add new parameters for the del_station calls
without having to modify all drivers that use this.Signed-off-by: Jouni Malinen
Signed-off-by: Johannes Berg
10 Oct, 2014
1 commit
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No need to store ieee80211_vif_use_reserved_context()
result and test it before returning.Signed-off-by: Fabian Frederick
Signed-off-by: Johannes Berg
09 Oct, 2014
4 commits
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As a counterpart to the pre_channel_switch operation, add a
post_channel_switch operation. This allows the drivers to go back to
a normal configuration after the channel switch is completed.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Some drivers may need to prepare for a channel switch also when it is
initiated from the remote side (eg. station, P2P client). To make
this possible, add a generic callback that can be called for all
interface types.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Implement get_mpp and dump_mpp cfg80211_ops to export the content of the
802.11s mesh proxy path table to userspace.Signed-off-by: Henning Rogge
Signed-off-by: Johannes Berg -
The chandef of the channel context a vif is using may be different
than the chandef of the vif itself. For instance, the bandwidth used
by the vif may be narrower than the one configured in the channel
context. To avoid confusion, return the vif's chandef in
ieee80211_cfg_get_channel() instead of the chandef of the channel
context.Signed-off-by: Luciano Coelho
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
11 Sep, 2014
1 commit
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Take the requested smps mode from the ap params
(instead of always starting with SMPS_OFF)Signed-off-by: Eliad Peller
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
05 Sep, 2014
4 commits
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Extend mac80211 set_coverage_class API in order to enable ACK timeout
estimation algorithm (dynack) passing coverage class equals to -1
to lower drivers. Synchronize set_coverage_class routine signature with
mac80211 function pointer for p54, ath9k, ath9k_htc and ath5k drivers.Signed-off-by: Lorenzo Bianconi
Signed-off-by: Johannes Berg -
If the remaining time in the current roc is not long
enough, mac80211 adds the new roc right after it
(if they have similar params).However, in case of multiple rocs, the "next roc"
is not considered, resulting in multiple rocs,
each one with its own duration.Refactor the code a bit and consider the next roc,
so a single max roc will be used instead of
multiple rocs (which might last much longer).Signed-off-by: Eliad Peller
Reviewed-by: Ilan Peer
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg -
The new duration (remaining duration after the current
ROC ends) was calculated but not used, making the
optimization worthless.Signed-off-by: Eliad Peller
Reviewed-by: Ilan Peer
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg -
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.For files that we have modified in the time since the change,
add the proper copyright notice now.Signed-off-by: Johannes Berg
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
15 Aug, 2014
1 commit
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We currently track the QoS capability twice: for all peer stations
in the WLAN_STA_WME flag, and for any clients associated to an AP
interface separately for drivers in the sta->sta.wme field.Remove the WLAN_STA_WME flag and track the capability only in the
driver-visible field, getting rid of the limitation that the field
is only valid in AP mode.Reviewed-by: Arik Nemtsov
Signed-off-by: Johannes Berg
26 Jun, 2014
1 commit
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Channel switch finalization is now 2-step. First
step is when driver calls csa_finish(), the other
is when reservation is actually finalized (which
can be deferred for in-place reservation).It is now safe to call ieee80211_csa_finish() more
than once.Signed-off-by: Michal Kazior
Signed-off-by: Johannes Berg
23 Jun, 2014
5 commits
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For TDLS, the AUTHORIZED flag arrives with all other important station
info (supported rates, HT/VHT caps, ...). Make sure to set the station
state in the low-level driver after transferring this information to
the mac80211 STA entry.
This aligns the STA information during sta_state callbacks with the
non-TDLS case.Signed-off-by: Arik Nemtsov
Reviewed-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg -
Instead of stopping all the hardware queues during channel switch,
which is especially bad when we have large CSA counts, stop only the
queues that are assigned to the vif that is performing the channel
switch.Additionally, check for (sdata->csa_block_tx) instead of calling
ieee80211_csa_needs_block_tx(), which can now be removed.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Sometimes different vifs may be stopping the queues for the same
reason (e.g. when several interfaces are performing a channel switch).
Instead of using a bitmask for the reasons, use an integer that holds
a refcount instead. In order to keep it backwards compatible,
introduce a boolean in some functions that tell us whether the queue
stopping should be refcounted or not. For now, use not refcounted for
all calls to keep it functionally the same as before.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Having csa counters part of beacon and probe_resp
structures makes it easier to get rid of possible
races between setting a beacon and updating
counters on SMP systems by guaranteeing counters
are always consistent against given beacon struct.While at it relax WARN_ON into WARN_ON_ONCE to
prevent spamming logs and racing.Signed-off-by: Michal Kazior
[remove pointless array check]
Signed-off-by: Johannes Berg -
Currently, cfg80211 tries to implement ethtool, but that doesn't
really scale well, with all the different operations. Make the
lower-level driver responsible for it, which currently only has
an effect on mac80211. It will similarly not scale well at that
level though, since mac80211 also has many drivers.To cleanly implement this in mac80211, introduce a new file and
move some code to appropriate places.Signed-off-by: Johannes Berg