02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
13 Jun, 2017
1 commit
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It is very useful to know what ampdu action is currently
happening. Add this information to the tracepoint.Signed-off-by: Emmanuel Grumbach
Signed-off-by: Luca Coelho
Signed-off-by: Johannes Berg
09 Feb, 2017
1 commit
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The nl80211_nan_dual_band_conf enumeration doesn't make much sense.
The default value is assigned to a bit, which makes it weird if the
default bit and other bits are set at the same time.To improve this, get rid of NL80211_NAN_BAND_DEFAULT and add a wiphy
configuration to let the drivers define which bands are supported.
This is exposed to the userspace, which then can make a decision on
which band(s) to use. Additionally, rename all "dual_band" elements
to "bands", to make things clearer.Signed-off-by: Luca Coelho
Signed-off-by: Johannes Berg
08 Feb, 2017
1 commit
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Extend ieee80211_cqm_rssi_notify with a rssi_level parameter so that
this information can be passed to netlink clients in the next patch, if
available. Most drivers will have this value at hand. wl1251 receives
events from the firmware that only tell it whether latest measurement
is above or below threshold so we don't pass any value at this time
(parameter is 0).Signed-off-by: Andrew Zaborowski
Signed-off-by: Johannes Berg
30 Sep, 2016
4 commits
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This allows the mesh sync (and debugfs) code to make incremental
TSF adjustments, avoiding any uncertainty introduced by delay in
programming absolute TSF.Signed-off-by: Thomas Pedersen
Signed-off-by: Johannes Berg -
Implement add/rm_nan_func functions and handle NAN function
termination notifications. Handle instance_id allocation for
NAN functions and implement the reconfig flow.Signed-off-by: Andrei Otcheretianski
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Luca Coelho
Signed-off-by: Johannes Berg -
Implement nan_change_conf callback which allows to change current
NAN configuration (master preference and dual band operation).
Store the current NAN configuration in sdata, so it can be used
both to provide the driver the updated configuration with changes
and also it will be used in hw reconfig flows in next patches.Signed-off-by: Andrei Otcheretianski
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Luca Coelho
Signed-off-by: Johannes Berg -
This code doesn't do much besides allowing to start and
stop the vif.Signed-off-by: Andrei Otcheretianski
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Ayala Beker
Signed-off-by: Luca Coelho
Signed-off-by: Johannes Berg
12 Apr, 2016
1 commit
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This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.Signed-off-by: Johannes Berg
05 Apr, 2016
1 commit
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Some devices, like iwlwifi, have RSS queues. This may cause a
situation where a disassociation is handled in control path and
results in station removal while there are prior RX frames
that were still not processed in other queues. When they will
be processed the station will be gone, and the frames will be
dropped.
Add a synchronization interface to avoid that. When driver returns
from the synchronization mac80211 may remove the station.Signed-off-by: Sara Sharon
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
14 Jan, 2016
1 commit
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Currently mac80211 does not inform the driver of the session
block ack timeout when starting a rx aggregation session.
Drivers that manage the reorder buffer need to know this
parameter.
Seeing that there are now too many arguments for the
drv_ampdu_action() function, wrap them inside a structure.Signed-off-by: Sara Sharon
Signed-off-by: Johannes Berg
04 Dec, 2015
1 commit
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This can happen when the driver needs to send less frames
than expected and then needs to close the SP.
Mac80211 still needs to set the more_data properly based
on its buffer state (ps_tx_buffer and buffered frames on
other TIDs).
To that end, refactor the code that delivers frames upon
uAPSD trigger frames to be able to get only the more_data
bit without actually delivering those frames in case the
driver is just asking to set a NDP with EOSP and MORE_DATA
bit properly set.Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
03 Nov, 2015
1 commit
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In TDLS channel-switch operations the chandef can sometimes be NULL.
Avoid an oops in the trace code for these cases and just print a
chandef full of zeros.Cc: stable@vger.kernel.org
Fixes: a7a6bdd0670fe ("mac80211: introduce TDLS channel switch ops")
Signed-off-by: Arik Nemtsov
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
15 Oct, 2015
1 commit
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As this API has never really seen any use and most drivers don't
ever use the value derived from it, remove it.Change the only driver using it (rt2x00) to simply use the DTIM
period instead of the "max sleep" time.Signed-off-by: Johannes Berg
22 Sep, 2015
2 commits
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Advertise the capability to send A-MSDU within A-MPDU
in the AddBA request sent by mac80211. Let the driver
know about the peer's capabilities.Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg -
Currently the cfg80211's frame registration api receives wdev, however
mac80211 assumes per device filter configuration and ignores wdev.
Per device filtering is too wasteful, especially for multi-channel
devices.
Introduce new per vif frame registration API and use it for probe
request registrations in ieee80211_mgmt_frame_register()
Also call directly to ieee80211_configure_filter instead of using a work
since it is now allowed to sleep in ieee80211_mgmt_frame_register.Signed-off-by: Andrei Otcheretianski
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
06 May, 2015
1 commit
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Extend the function to read the TKIP IV32/IV16 to read the IV/PN for
all ciphers in order to allow drivers with full hardware crypto to
properly support this.Signed-off-by: Johannes Berg
16 Apr, 2015
1 commit
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Pull networking updates from David Miller:
1) Add BQL support to via-rhine, from Tino Reichardt.
2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
can support hw switch offloading. From Floria Fainelli.3) Allow 'ip address' commands to initiate multicast group join/leave,
from Madhu Challa.4) Many ipv4 FIB lookup optimizations from Alexander Duyck.
5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
Borkmann.6) Remove the ugly compat support in ARP for ugly layers like ax25,
rose, etc. And use this to clean up the neigh layer, then use it to
implement MPLS support. All from Eric Biederman.7) Support L3 forwarding offloading in switches, from Scott Feldman.
8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
up route lookups even further. From Alexander Duyck.9) Many improvements and bug fixes to the rhashtable implementation,
from Herbert Xu and Thomas Graf. In particular, in the case where
an rhashtable user bulk adds a large number of items into an empty
table, we expand the table much more sanely.10) Don't make the tcp_metrics hash table per-namespace, from Eric
Biederman.11) Extend EBPF to access SKB fields, from Alexei Starovoitov.
12) Split out new connection request sockets so that they can be
established in the main hash table. Much less false sharing since
hash lookups go direct to the request sockets instead of having to
go first to the listener then to the request socks hashed
underneath. From Eric Dumazet.13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.
14) Support stable privacy address generation for RFC7217 in IPV6. From
Hannes Frederic Sowa.15) Hash network namespace into IP frag IDs, also from Hannes Frederic
Sowa.16) Convert PTP get/set methods to use 64-bit time, from Richard
Cochran.* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
fm10k: Bump driver version to 0.15.2
fm10k: corrected VF multicast update
fm10k: mbx_update_max_size does not drop all oversized messages
fm10k: reset head instead of calling update_max_size
fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
fm10k: update xcast mode before synchronizing multicast addresses
fm10k: start service timer on probe
fm10k: fix function header comment
fm10k: comment next_vf_mbx flow
fm10k: don't handle mailbox events in iov_event path and always process mailbox
fm10k: use separate workqueue for fm10k driver
fm10k: Set PF queues to unlimited bandwidth during virtualization
fm10k: expose tx_timeout_count as an ethtool stat
fm10k: only increment tx_timeout_count in Tx hang path
fm10k: remove extraneous "Reset interface" message
fm10k: separate PF only stats so that VF does not display them
fm10k: use hw->mac.max_queues for stats
fm10k: only show actual queues, not the maximum in hardware
fm10k: allow creation of VLAN on default vid
fm10k: fix unused warnings
...
08 Apr, 2015
1 commit
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Every tracing file must have its own TRACE_SYSTEM defined.
The mac80211 tracepoint header broke this and add in the middle
of the file had:#undef TRACE_SYSTEM
#define TRACE_SYSTEM mac80211_msgUnfortunately, this broke new code in the ftrace infrastructure.
Moving the mac80211_msg into its own trace file with its own
TRACE_SYSTEM defined fixes the issue.Link: http://lkml.kernel.org/r/1428389938.1841.1.camel@sipsolutions.net
Reviewed-by: Johannes Berg
Signed-off-by: Steven Rostedt
02 Apr, 2015
1 commit
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This allows drivers to request per-vif and per-sta-tid queues from which
they can pull frames. This makes it easier to keep the hardware queues
short, and to improve fairness between clients and vifs.The task of scheduling packet transmission is left up to the driver -
queueing is controlled by mac80211. Drivers can only dequeue packets by
calling ieee80211_tx_dequeue. This makes it possible to add active queue
management later without changing drivers using this code.This can also be used as a starting point to implement A-MSDU
aggregation in a way that does not add artificially induced latency.Signed-off-by: Felix Fietkau
[resolved minor context conflict, minor changes, endian annotations]
Signed-off-by: Johannes Berg
30 Mar, 2015
1 commit
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We will be able to add more events, such as MLME events and
others. The low level driver may be interested in knowing
about these events to dump firmware data upon failures, or
to change parameters in case connection attempts fail etc...Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
08 Jan, 2015
1 commit
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In many cases, drivers can filter things like beacons that will
skew statistics reported by mac80211. To get correct statistics
in these cases, call drivers to obtain statistics and let them
override all values, filling values from mac80211 if the driver
didn't provide them. Not all of them make sense for the driver
to fill, so some are still always done by mac80211.Note that this doesn't currently allow a driver to say "I know
this value is wrong, don't report it at all", or to sum it up
with a mac80211 value (as could be useful for "dropped misc"),
that can be added if it turns out to be needed.This also gets rid of the get_rssi() method as is can now be
implemented using sta_statistics().Signed-off-by: Johannes Berg
27 Nov, 2014
1 commit
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Having it as a sub-event for RSSI thresholds is very ugly,
but luckily no userspace actually uses the events yet.Move the event to its own function call internally and to
its own event attribute in nl80211.Signed-off-by: Johannes Berg
20 Nov, 2014
4 commits
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This allows drivers with a firmware or chip-based rate lookup table to
use the most recent default rate selection without having to get it from
per-packet data or explicit ieee80211_get_tx_rate callsSigned-off-by: Felix Fietkau
Signed-off-by: Johannes Berg -
Allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR with software
based scanning and generate a random MAC address for them for every
scan request with the flag.Signed-off-by: Johannes Berg
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When receiving a TDLS channel switch request or response, parse the frame
and call a new tdls_recv_channel_switch op in the low level driver with
the parsed data.Signed-off-by: Arik Nemtsov
Signed-off-by: Arik Nemtsov
Signed-off-by: Johannes Berg -
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
10 Nov, 2014
1 commit
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The device_timestamp value was left out of the event trace for
drv_pre_channel_switch by mistake. Add it.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg
04 Nov, 2014
2 commits
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Drivers might want to know also when mac80211 has
completed reconfiguring after resume (e.g. in order
to know when frames can be passed to mac80211).Rename restart_complete() to a more-generic reconfig_complete(),
and add a new enum to indicate the reconfiguration type.Update the current users with the new prototype.
Signed-off-by: Eliad Peller
Signed-off-by: Emmanuel Grumbach
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
09 Oct, 2014
4 commits
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Channel switch with multiple channel contexts should now work fine.
Remove check that disallows switches when multiple contexts are in
use.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
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 -
Some devices may need the device timestamp in order to synchronize the
channel switch. To pass this value back to the driver, add it to the
channel switch structure and copy the device_timestamp value received
in the rx info structure into it.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg
05 Sep, 2014
1 commit
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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
23 Jun, 2014
1 commit
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After sending a TDLS discovery-request, we expect a reply to arrive on
the AP's channel. We must stay on the channel (no PSM, scan, etc.), since
a TDLS setup-response is a direct packet not buffered by the AP.
Add a new mac80211 driver callback to allow discovery session protection.Signed-off-by: Arik Nemtsov
Reviewed-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
30 May, 2014
1 commit
26 May, 2014
1 commit
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In some cases, when the driver is already using all the channel
contexts it can handle at once, we have to do an in-place switch
(ie. we cannot afford using an extra context temporarily for the
transaction). But some drivers may not support switching the channel
context assigned to a vif on the fly (ie. without unassigning and
assigning it) while others may only work if the context is changed on
the fly, without unassigning it first.To allow these different scenarios, add a new driver operation that
let's the driver decide how to handle an in-place switch.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg
23 May, 2014
1 commit
21 May, 2014
1 commit
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Add get_expected_throughput() API to mac80211 so that each
driver can implement its own version based on the RC
algorithm they are using (might be using an HW RC algo).
The API returns a value expressed in Kbps.Also, add the new get_expected_throughput() member
to the rate_control_ops structure in order to be
able to query the RC algorithm (this patch provides an
implementation of this API for both minstrel and
minstrel_ht).The related member in the station_info object is now
filled accordingly when dumping a station.Cc: Felix Fietkau
Signed-off-by: Antonio Quartulli
Signed-off-by: Johannes Berg
