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* mac80211: add an intermediate software queue implementationFelix Fietkau2015-04-0112-19/+433
| | | | | | | | | | | | | | | | | | 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 <nbd@openwrt.org> [resolved minor context conflict, minor changes, endian annotations] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: reduce log spam from ieee80211_handle_pwr_constrJohn Linville2015-04-011-7/+7
| | | | | | | | | | This changes a couple of messages from sdata_info to sdata_dbg. This should reduce some log spam, as reported here: https://bugzilla.redhat.com/show_bug.cgi?id=1206468 Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add standard deviation to Minstrel statsThomas Huehn2015-04-014-18/+56
| | | | | | | | | | | | | This patch adds the statistical descriptor "standard deviation" to better describe the current properties of Minstrel and Minstrel-HTs success probability distribution. The standard deviation (SD) is calculated as exponential weighted moving standard deviation (EWMSD) and its current value is added as new column in all rc_stats (in debugfs). Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: reduce calculation costs of EWMAThomas Huehn2015-04-011-1/+6
| | | | | | | | | | | This patch reduces the calculation costs of the EWMA macro from "2x multiplication and 1 addition" down to "1x multiplication and 2x additions". This slightly improves performance depending on the CPU architecture. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add max lossless throughput per rateThomas Huehn2015-04-016-69/+93
| | | | | | | | | | | This patch adds the new statistic "maximum possible lossless throughput" to Minstrels and Minstrel-HTs rc_stats (in debugfs). This enables comprehensive comparison between current per-rate throughput and max. achievable per-rate throughput. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: restructure per-rate throughput calculation into functionThomas Huehn2015-04-016-61/+88
| | | | | | | | | | | | This patch moves Minstrels and Minstrel-HTs per-rate throughput calculation (EWMA(thr)) into a dedicated function to be called. Therefore the variable "unsigned int cur_tp" within struct "minstrel_rate_stats" becomes obsolete. and is removed to free up its space. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: improve Minstrel variable & function namingThomas Huehn2015-04-016-95/+98
| | | | | | | | | | | This patch ensures a consistent usage of variable names for type "minstrel_rate_stats" to be used as "mrs" and from type minstrel_rate as "mr" across both Minstrel & Minstrel-HT. In addition some variable and function names got changed to more meaningful ones. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: unify Minstrel & Minstrel-HTs calculation of rate statisticsThomas Huehn2015-04-013-43/+32
| | | | | | | | | | This patch unifies the calculation of Minstrels and Minstrel-HTs per-rate statistic. The new common function minstrel_calc_rate_stats() is called when a statistic update is performed. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add new Minstrel-HT statistic output via csvThomas Huehn2015-04-012-2/+138
| | | | | | | | | | | | This patch adds a new debugfs file "rc_stats_csv" to output Minstrel-HTs statistics in a common csv format that is easy to parse. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: Stefan Venz <ikstream86@gmail.com> Acked-by: Felix Fietkau <nbd@openwrt.org> [remove printing current time of day] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add new Minstrel statistic output via csvThomas Huehn2015-04-012-14/+82
| | | | | | | | | | | This patch adds a new debugfs file "rc_stats_csv" to output Minstrels statistics in a common csv format that is easy to parse. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: Stefan Venz <ikstream86@gmail.com> Acked-by: Felix Fietkau <nbd@openwrt.org> [remove printing current time of day] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: enhance readability of Minstrel-HTs rc_stats outputThomas Huehn2015-04-011-15/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch restructures the rc_stats debugfs table of Minstrel-HT in order to achieve better human readability. A new layout of the statistics and a new header is added. In addition to the old layout there are two new columns of information added: idx - representing the rate index of each rate in mac80211 which can be used to set specific rates as fixed rate via debugfs airtime - the tx-time in micro seconds that a 1200 Byte packet takes to be transmitted over the air at the given rate The old layout of rc_stats: type rate tpt eprob *prob ret *ok(*cum) ok( cum) HT20/LGI MCS0 5.6 100.0 100.0 1 0( 0) 1( 1) HT20/LGI B MCS1 10.5 100.0 100.0 0 0( 0) 1( 1) HT20/LGI A MCS2 14.8 100.0 100.0 0 0( 0) 1( 1) ... is changed into this new layout: best ________rate______ __statistics__ ________last_______ ______sum-of________ mode guard # rate [name idx airtime] [ ø(tp) ø(prob)] [prob.|retry|suc|att] [#success | #attempts] HT20 LGI 1 MCS0 0 1480 0.0 0.0 0.0 1 0 0 0 0 HT20 LGI 1 B MCS1 1 740 10.5 100.0 100.0 0 0 0 1 1 HT20 LGI 1 A MCS2 2 496 14.8 100.0 100.0 0 0 0 1 1 ... Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: Stefan Venz <ikstream86@gmail.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: enhance readability of Minstrels rc_stats outputThomas Huehn2015-04-011-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch restructures the rc_stats debugfs table of Minstrel in order to achieve better human readability. A new layout of the statistics and a new header is added. In addition to the old layout there are two new columns of information added: idx - representing the rate index of each rate in mac80211 which can be used to set specific rates as fixed rate via debugfs airtime - the tx-time in micro seconds that a 1200 Byte packet takes to be transmitted over the air at the given rate The old layout of rc_stats: rate tpt eprob *prob ret *ok(*cum) ok( cum) DP 1 0.9 93.5 100.0 1 0( 0) 2( 2) 2 0.4 40.0 100.0 0 0( 0) 4( 10) 5.5 0.0 0.0 0.0 0 0( 0) 0( 0) ... is changed into this new layout: best _______rate_____ __statistics__ ________last_______ ______sum-of________ rate [name idx tx-time] [ ø(tp) ø(prob)] [prob.|retry|suc|att] [#success | #attempts] DP 1 0 9738 0.9 93.5 100.0 1 1 1 2 2 2 1 4922 0.4 40.0 100.0 1 0 0 4 10 5.5 2 1858 0.0 0.0 0.0 2 0 0 0 0 ... Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: Stefan Venz <ikstream86@gmail.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Stop calling crda if it is not responsiveIlan peer2015-04-013-7/+38
| | | | | | | | | | | | | | | Patch eeca9fce1d71a4955855ceb0c3b13c1eb9db27c1 (cfg80211: Schedule timeout for all CRDA call) introduced a regression, where in case that crda is not installed (or not configured properly etc.), the regulatory core will needlessly continue to call it, polluting the log with the following log: "cfg80211: Calling CRDA to update world regulatory domain" Fix this by limiting the number of continuous CRDA request failures. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: use rhashtable for station tableJohannes Berg2015-04-016-85/+85
| | | | | | | | | | | | | | | | | | | | | | We currently have a hand-rolled table with 256 entries and are using the last byte of the MAC address as the hash. This hash is obviously very fast, but collisions are easily created and we waste a lot of space in the common case of just connecting as a client to an AP where we just have a single station. The other common case of an AP is also suboptimal due to the size of the hash table and the ease of causing collisions. Convert all of this to use rhashtable with jhash, which gives us the advantage of a far better hash function (with random perturbation to avoid hash collision attacks) and of course that the hash table grows and shrinks dynamically with chain length, improving both cases above. Use a specialised hash function (using jhash, but with fixed length) to achieve better compiler optimisation as suggested by Sergey Ryazanov. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge branch 'ptp-ns_to_timespec64'David S. Miller2015-03-3111-47/+20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Richard Cochran says: ==================== ptp: remove open coded ns_to_timespec64 and reverse This patch series is a follow up to the recent timespec64 work for the PTP Hardware Clock drivers. Arnd noticed that drivers are using open coded implementations of ns_to_timespec64 and timespec64_to_ns. This series replaces the open coded logic with the helper functions. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: ixgbe: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+2
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: fec: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+2
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: tg3: use helpers for converting ns to timespec.Richard Cochran2015-03-311-3/+1
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: blackfin: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+3
| | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: cpts: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+2
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: stmmac: use helpers for converting ns to timespec.Richard Cochran2015-03-311-3/+1
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: mlx4: use helpers for converting ns to timespec.Richard Cochran2015-03-311-3/+1
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: igb: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+2
| | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: e1000e: use helpers for converting ns to timespec.Richard Cochran2015-03-311-3/+1
| | | | | | | | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: gianfar: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+3
| | | | | | | | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ptp: bnx2x: use helpers for converting ns to timespec.Richard Cochran2015-03-311-5/+2
|/ | | | | | | | | | This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: Fix another case of LACPDU not sent on slaveMahesh Bandewar2015-03-311-0/+3
| | | | | | | | | | | | When mii-mon discovers that the link is up, it will call bond_3ad_handle_link_change() but we forget to add the LACP_ENABLED flag when we discover the speed and duplex for the slave link are normal. Change-Id: Ie8b268ecfeea0f99bf9fdcd72706c0653f9d9e49 Signed-off-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: deprecate BOND_MONITOR_CHURNED in favor of existing definitionsMahesh Bandewar2015-03-311-6/+6
| | | | | | | | | AD_PORT_ACTOR_CHURN and AD_PORT_PARTNER_CHURN are already present and essentially BOND_MONITOR_CHURNED is a combination of these two definitions. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'macb-next'David S. Miller2015-03-312-87/+130
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nicolas Ferre says: ==================== net/macb: fixes after big driver update The recent modifications to the macb driver lead to issues with the probe function code flow. Here are some attempt to fix them. This time, some more issues are fixed related to the clock as reported by Boris Brezillon. The series is written on top of net-next. Changes in v2: - address Cyrille comment about exit condition of queue configuration loop - add fixes for probe sequence related to clocks - add ethtool register dump - fix peripheral version test ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: unify peripheral version testingNicolas Ferre2015-03-312-5/+7
| | | | | | | | | | | | | | | | | | As we need to check peripheral version from the hardware during probe, I introduce a little helper to unify these tests. It would prevent to de-synchronize the test like previously observed. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: fix the peripheral version testNicolas Ferre2015-03-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently need two checks of the peripheral version in MACB_MID register. One of them got out of sync after modification by 8a013a9c71b2 (net: macb: Include multi queue support for xilinx ZynqMP ethernet version). Fix this in macb_configure_caps() so that xilinx ZynqMP will be considered as a GEM flavor. Fixes: 8a013a9c71b2 ("net: macb: Include multi queue support for xilinx ZynqMP ethernet version") Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Punnaiah Choudary Kalluri <punnaia@xilinx.com> Cc: <stable@vger.kernel.org> #4.0 (if it doesn't make it for -final) Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: add the user i/o to ethtool register dumpNicolas Ferre2015-03-312-2/+2
| | | | | | | | | | | | | | | | | | | | User i/o register EMAC_USRIO or GMAC_UR can be found on both macb and gem flavors of the peripheral. By using the proper accessor, we can add it to the register dump feature of ethtool. Increment the version of this API so it can be noticed from user space. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: fix probe sequence to setup clocks earlierNicolas Ferre2015-03-312-67/+104
| | | | | | | | | | | | | | | | | | | | | | | | | | As accessing the peripheral registers need the clocks to be set, we have to enable them as soon as possible. Their configuration depend on the type of device used and determined by the DT compatible string. That lead to add another initialization function in the DT configuration structure. As the device private structure length depend on an information read in the registers, we have to store the clock pointers in temporary variables before feeding the structure fields. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: trivial: correct wording for capsNicolas Ferre2015-03-311-2/+2
| | | | | | | | | | | | | | | | As a non-native English speaker, I would correct "capacities" of the macb peripheral to "capabilities": correct me if I'm wrong! Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: fix capabilities configurationNicolas Ferre2015-03-311-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Capabilities configuration by macb_configure_caps() was moved far too late by 421d9df0628b (net/macb: merge at91_ether driver into macb driver) which would lead to badly configured hardware. So, move this function to early probe and modify its prototype to re-gain its original behavior. DT data retrieval is also moved to simplify the probe code flow. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: add comment in macb_probe_queuesNicolas Ferre2015-03-311-2/+6
| | | | | | | | | | | | | | | | As we access the MID register directly, we need to tell why we don't use the macb_is_gem() dedicated function. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/macb: only probe queues once and use stored valuesNicolas Ferre2015-03-312-4/+4
|/ | | | | | | | | | | | | | When merging at91_ether and macb driver during 421d9df0628b (net/macb: merge at91_ether driver into macb driver) the probe function has been split. The code dealing with initialization of queues is now moved in macb_init() which needs information computed in the parent macb_probe() function. So, add the queue_mask information to the private structure and use it when needed in macb_init(). Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: smc91x: Remove an unused variableFabio Estevam2015-03-311-1/+0
| | | | | | | | | | | | | | Commit cb6e0b3690f48dff ("net: smc91x: make use of 4th parameter to devm_gpiod_get_index") caused the following build warning: drivers/net/ethernet/smsc/smc91x.c:2208:6: warning: unused variable 'res' [-Wunused-variable] Remove the unused 'res' variable. Reported-by: Olof's autobuilder <build@lixom.net> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'mac80211-next-for-davem-2015-03-30' of ↵David S. Miller2015-03-3172-1190/+1909
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== Lots of updates for net-next; along with the usual flurry of small fixes, cleanups and internal features we have: * VHT support for TDLS and IBSS (conditional on drivers though) * first TX performance improvements (the biggest will come later) * many suspend/resume (race) fixes * name_assign_type support from Tom Gundersen ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * mac80211: set QoS capability before changing station stateJohannes Berg2015-03-301-4/+4
| | | | | | | | | | | | | | | | | | In the upcoming fast-xmit patch, changing station state will build a header cache based on the station's capabilities, and as the QoS capability (sta.wme) impacts the header, it needs to be set before. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: send HT/VHT IEs in TDLS discovery responseArik Nemtsov2015-03-301-3/+8
| | | | | | | | | | | | | | | | | | These are mandated by IEEE802.11-2012 section 8.5.8.6 and IEEE802.11ac-2013 section 8.5.8.16. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: add VHT support for IBSSJanusz.Dziedzic@tieto.com2015-03-305-11/+80
| | | | | | | | | | | | | | | | | | Add VHT support for IBSS. Drivers could activate this feature by setting NL80211_EXT_FEATURE_VHT_IBSS flag. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: IBSS fix scan requestJanusz.Dziedzic@tieto.com2015-03-303-12/+97
| | | | | | | | | | | | | | | | | | | | In case of wide bandwidth (wider than 20MHz) used by IBSS, scan all channels in chandef to be able to find neighboring IBSS netwqworks that use the same overall channels but a different control channel. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: factor out station lookup from ieee80211_build_hdr()Johannes Berg2015-03-301-70/+118
| | | | | | | | | | | | | | | | | | In order to look up the RA station earlier to implement a TX fastpath, factor out the lookup from ieee80211_build_hdr(). To always have a valid station pointer, also move some of the checks into the new function. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: make sta.wme indicate whether QoS is usedJohannes Berg2015-03-305-6/+8
| | | | | | | | | | | | | | | | | | Indicating just the peer's capability is fairly pointless if the local device doesn't support it. Make the variable track both combined, and remove the 'local support' check in the TX path. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: send AP probe as unicast againJohannes Berg2015-03-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | Louis reported that a static checker was complaining that the 'dst' variable was set (multiple times) but not used. This is due to a previous commit having removed the usage (apparently erroneously), so add it back. Fixes: a344d6778a98 ("mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR") Reported-by: Louis Langholtz <lou_langholtz@me.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80111: aes_gcm: clean up ieee80211_aes_gcm_key_setup_encrypt()Johannes Berg2015-03-301-4/+8
| | | | | | | | | | | | | | | | | | | | | | This code is written using an anti-pattern called "success handling" which makes it hard to read, especially if you are used to normal kernel style. It should instead be written as a list of directives in a row with branches for error handling. (Basically copied from Dan's previous patch for CCM) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80111: aes_ccm: cleanup ieee80211_aes_key_setup_encrypt()Dan Carpenter2015-03-301-4/+8
| | | | | | | | | | | | | | | | | | | | | | This code is written using an anti-pattern called "success handling" which makes it hard to read, especially if you are used to normal kernel style. It should instead be written as a list of directives in a row with branches for error handling. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: Fix misplaced return in AES-GMAC key setupJouni Malinen2015-03-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8ade538bf39b ("mac80111: Add BIP-GMAC-128 and BIP-GMAC-256 ciphers") had the success return in incorrect place before the crypto_aead_setauthsize() call which practically ended up skipping that call unconditionally. The missing call did not actually change any functionality since GMAC_MIC_LEN (16) is identical to the maxauthsize in gcm(aes) and as such, the default value used for the authsize parameter. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * cfg80211: pass name_assign_type to rdev_add_virtual_intf()Tom Gundersen2015-03-3017-17/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will expose in /sys whether the ifname of a device is set by userspace or generated by the kernel. The latter kind (wlanX, etc) is not deterministic, so userspace needs to rename these devices to names that are guaranteed to stay the same between reboots. The former, however should never be renamed, so userspace needs to be able to reliably tell the difference. Similar functionality was introduced for the rtnetlink core in commit 5517750f058e ("net: rtnetlink - make create_link take name_assign_type") Signed-off-by: Tom Gundersen <teg@jklm.no> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: Brett Rudley <brudley@broadcom.com> Cc: Arend van Spriel <arend@broadcom.com> Cc: Franky (Zhenhui) Lin <frankyl@broadcom.com> Cc: Hante Meuleman <meuleman@broadcom.com> Cc: Johannes Berg <johannes@sipsolutions.net> [reformat changelog to fit 72 cols] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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