- 01 Apr, 2015 14 commits
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Felix Fietkau authored
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>
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John Linville authored
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=1206468Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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:
Stefan Venz <ikstream86@gmail.com> Acked-by:
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Thomas Huehn authored
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:
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Thomas Huehn authored
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 authored
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: -
Ilan peer authored
Patch eeca9fce (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:
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Johannes Berg authored
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:
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- 31 Mar, 2015 26 commits
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David S. Miller authored
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>
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Richard Cochran authored
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:
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Richard Cochran authored
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:
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Richard Cochran authored
This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by:
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Richard Cochran authored
This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Signed-off-by:
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Richard Cochran authored
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:
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Richard Cochran authored
This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by:
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Richard Cochran authored
This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by:
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Richard Cochran authored
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:
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Richard Cochran authored
This patch changes the driver to use ns_to_timespec64() instead of open coding the same logic. Compile tested only. Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
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Richard Cochran authored
This patch changes the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Signed-off-by:
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Richard Cochran authored
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:
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Mahesh Bandewar authored
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:
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Mahesh Bandewar authored
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:
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David S. Miller authored
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: -
Nicolas Ferre authored
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:
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Nicolas Ferre authored
We currently need two checks of the peripheral version in MACB_MID register. One of them got out of sync after modification by 8a013a9c (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: 8a013a9c ("net: macb: Include multi queue support for xilinx ZynqMP ethernet version") Signed-off-by:
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Nicolas Ferre authored
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:
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Nicolas Ferre authored
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:
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Nicolas Ferre authored
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:
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Nicolas Ferre authored
Capabilities configuration by macb_configure_caps() was moved far too late by 421d9df0 (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:
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Nicolas Ferre authored
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:
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Nicolas Ferre authored
When merging at91_ether and macb driver during 421d9df0 (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:
Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by:
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Fabio Estevam authored
Commit cb6e0b36 ("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:
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David S. Miller authored
Merge tag 'mac80211-next-for-davem-2015-03-30' of 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:
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Jiri Pirko authored
Unlike other places, this function uses name "dev" for what should be "orig_dev", which might be a bit confusing. So fix this. Signed-off-by:
Jiri Pirko <jiri@resnulli.us> Signed-off-by:
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