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* mac80211: notify driver of rate control updatesJohannes Berg2012-04-10
| | | | | | | | | | | | | | Devices that have internal rate control need to be notified when the bandwidth or SMPS state changes just like external rate control algorithms get a notification now. Add this notification and clarify the change bits while at it, the HT_CHANGED bit really meant only bandwidth changed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: remove queue stop on rate control updateJohannes Berg2012-04-10
| | | | | | | | | | | We currently stop the queue when changing the rate control between 20/40 MHz in the BSS. This seems to have been necessary when we actually changed the channel, but now that we just update the station it doesn't seem right any more. Remove it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: remove channel type argument from rate_updateJohannes Berg2012-04-10
| | | | | | | | | | | | | | | The channel type argument to the rate_update() callback isn't really the correct way to give the rate control algorithm about the desired RX bandwidth of the peer. Remove this argument, and instead update the STA capabilities with 20/40 appropriately. The SMPS update done by this callback works in the same way, so this makes the callback cleaner. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: set HT channel before associationJohannes Berg2012-04-10
| | | | | | | | | | | | | | | | | | | | | Changing the channel type during operation is confusing to some drivers and will be hard to handle in multi-channel scenarios. Instead of changing the channel, set it to the right HT channel before authenticating/associating and don't change it -- just update the 20/40 MHz restrictions in rate control as needed when changed by the AP. This also fixes a problem that Paul missed in his fix for the "regulatory makes us deaf" issue -- when we couldn't use 40 MHz we still associated saying we were using 40 MHz, which could in similarly broken APs make us never even connect successfully. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use AC constantsJohannes Berg2012-04-10
| | | | | | | | Use the AC constants instead of hard-coding the numbers with comments. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: inline ieee80211_add_pending_skbsJohannes Berg2012-04-10
| | | | | | | This is a trivial wrapper function, inline it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: make ieee80211_downgrade_queue staticJohannes Berg2012-04-10
| | | | | | | There's no reason for it to not be static. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: clean up uAPSD TX codeJohannes Berg2012-04-10
| | | | | | | | Clean up the code formatting and also replace the constant 0 by IEEE80211_AC_VO. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix mesh TX coding styleJohannes Berg2012-04-10
| | | | | | | Fix bad indentation & pointless if nesting. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: don't use IEEE80211_MAX_QUEUESJohannes Berg2012-04-10
| | | | | | | | | | | | | | | | | IEEE80211_MAX_QUEUES is an internal mac80211 value, it is not guaranteed to be always 4. The firmware API in mwifiex almost certainly doesn't care about mac80211 changing though, so mwifiex shouldn't use this value. Maybe it should use IEEE80211_NUM_ACS instead and that is what I'm doing here as at least that value will probably never change, but maybe it should have its own define instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: don't always advertise remain-on-channelJohannes Berg2012-04-10
| | | | | | | | | | | | | | | | | | Not all devices are really capable of implementing remain-on-channel, even if it is implemented in SW, as they can't necessarily deal with channel changes while associated. Remove the WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL and add it only if either the driver has remain_on_channel implemented in the driver/device. Also add it to all drivers that advertise P2P right now since those definitely have to have it working. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* rtlwifi: Add missing DMA buffer unmapping for PCI driversLarry Finger2012-04-10
| | | | | | | | | | | | | | In https://bugzilla.kernel.org/show_bug.cgi?id=42976, a system with driver rtl8192se used as an AP suffers from "Out of SW-IOMMU space" errors. These are caused by the DMA buffers used for beacons never being unmapped. This bug was also reported at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961618 Reported-and-Tested-by: Da Xue <da@lessconfused.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: Add pr_fmtJoe Perches2012-04-10
| | | | | | | | Prefix dmesg output with "iwlwifi: " by adding #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: fix unused variable warningOliver Hartkopp2012-04-10
| | | | | | | | | In the case of disabled CONFIG_IWLWIFI_DEBUGFS option the compiler complains about the unused variable 'img'. Fix this by moving the 'img' definition. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: Introduce _ath5k_printk to reduce code/textJoe Perches2012-04-10
| | | | | | | | | | | | | | | | Macros can be converted to functions to reduce overall object size. Convert the ATH5K_PRINTK macro to use _ath5k_printk. Allyesconfig size is reduced ~10% $ size drivers/net/wireless/ath/ath5k/built-in.o* text data bss dec hex filename 211557 2032 40672 254261 3e135 drivers/net/wireless/ath/ath5k/built-in.o.new 235412 2032 47296 284740 45844 drivers/net/wireless/ath/ath5k/built-in.o.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: Add and use pr_fmt, convert printks to pr_<level>Joe Perches2012-04-10
| | | | | | | | Use a more current logging style. Make sure all output is prefixed appropriately. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: split POWER_PMI status bitDon Fry2012-04-09
| | | | | | | | | | Move the POWER_PMI to the op_mode where it is changed. The trans needs to check it frequently, so shadow the status in the trans and update it in trans when it infrequently changes. Signed-off-by: Don Fry <donald.h.fry@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move FW_ERROR to privDon Fry2012-04-09
| | | | | | | | | The op_mode should check for FW_ERROR before calling send_cmd. This removes the need to test for FW_ERROR in the trans layer. Signed-off-by: Don Fry <donald.h.fry@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: remove firmware info from iwl_sharedMeenakshi Venkataraman2012-04-09
| | | | | | | | | | | | | | With error logging now completely handled in the op_mode, the transport layer does not need to know information about the loaded firmware. Remove this state information from the iwl_shared data structure. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move iwl_get_single_channel_number and mark it staticMeenakshi Venkataraman2012-04-09
| | | | | | | | | iwl_get_single_channel_number is used only in iwl-scan.c, move it there and mark it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move iwl_full_rxon_required and mark it staticMeenakshi Venkataraman2012-04-09
| | | | | | | | | | iwl_full_rxon_required is used only in iwl-agn-rxon.c. Move it there and mark it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move iwl_check_rxon_cmd and mark it staticMeenakshi Venkataraman2012-04-09
| | | | | | | | | | iwl_check_rxon_cmd is used only in iwl-agn-rxon.c. Move it there and mark it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move iwl_set_rxon_hwcrypto and mark it staticMeenakshi Venkataraman2012-04-09
| | | | | | | | | | iwl_set_rxon_hwcrypto is used only in iwl-agn-rxon.c. Move it there and mark it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: Move iwl_send_rxon_timing and make it staticMeenakshi Venkataraman2012-04-09
| | | | | | | | | | iwl_send_rxon_timing is used only in iwl-agn-rxon.c, move it there and mark it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move iwl_init_geos to iwl-agn.cMeenakshi Venkataraman2012-04-09
| | | | | | | | | This is used only in one file, move it there and make it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move ucode_type from shared to op_modeMeenakshi Venkataraman2012-04-09
| | | | | | | | | | | | | This variable holds the ucode currently running on the device; which is determined by op_mode, so move this parameter there. Also, the name of the variable is a bit misleading, so rename it to cur_ucode. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move ucode error log reporting to op_modeMeenakshi Venkataraman2012-04-09
| | | | | | | | | | | | | | | | | | | | | | | | Error log reporting does not belong to the transport layer, but to the op_mode loading the ucode, as it is the entity which knows about the ucode loaded, and what the error information means. Move device logging pointers from the transport layer to op_mode. With this change, transport layer only reports an error to the op_mode, which will figure out what to do with the error. This causes the driver to now dump out error logs when the command queue is stuck as well. Also, move the debugfs entry for event logs out of the transport layer and into op_mode. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: make iwl_nic_error staticMeenakshi Venkataraman2012-04-09
| | | | | | | | | iwl_nic_error is used in iwl-agn.c only, move it there and make it static. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: use iwlagn_fw_error instead of iwl_nic_errorMeenakshi Venkataraman2012-04-09
| | | | | | | | | | In the process, make iwlagn_fw_error a non-static function, as it is used by more than one file. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move valid_contexts to privJohannes Berg2012-04-09
| | | | | | | | | No other component is accessing it any more, so it can move to the correct place in priv. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: move queue mapping out of transportJohannes Berg2012-04-09
| | | | | | | | | | | | | | | | The queue mapping is not only dynamic, it is also dependent on the uCode, as we can already see today with the dual-mode and non-dual-mode being different. Move the queue mapping out of the transport layer and let the higher layer manage it. Part of the transport configuration is how to set up the queues. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: use scan while idleJohannes Berg2012-04-09
| | | | | | | | | | | | | As idle is just a deep powersave mode for the device, it will easily scan while idle since that turns off powersave. This reduces the number of commands sent to the device when scanning. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: remove scan_rx_antennasJohannes Berg2012-04-09
| | | | | | | | | This is not (no longer?) used by any device so just remove it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: remove iq_invert config paramJohannes Berg2012-04-09
| | | | | | | | | | This is used only by 2000 class devices, but they all use it so remove the configuration parameter and hard-code the programming. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: remove support_wimax_coexistJohannes Berg2012-04-09
| | | | | | | | There's no device using this mechanism. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: clarify config struct commentsJohannes Berg2012-04-09
| | | | | | | | | | It talks about treating different uCode APIs as different pieces of hardware which really isn't how we handle things. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: add trailing newline to various messagesJohannes Berg2012-04-09
| | | | | | | | | A whole bunch of messages, even some recent ones, didn't include a trailing newline so add it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: simplify calibration collectionJohannes Berg2012-04-09
| | | | | | | | | | | | | | | | | | | | The calibration results all come in while we're waiting for the calibration complete notification. As a consequence, there's no need to install a global RX handler for them, we can use the newly extended notification wait framework for this and make the code easier to follow. It is now quite explicit that we are processing the calibration results while waiting for the complete notification, before this was implicit and developers had to know this to understand why we wait for the calibration complete notification and what happens while we wait. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: extend notification waitJohannes Berg2012-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes, for example when we ask the uCode for calibration, we wait for the "complete" response while we also need the results that are sent in other, interim, notifications. Currently we handle this by installing an RX handler globally, but that isn't needed as this is the only time we want to use these notifications. So in order to be able to simplify at least future code that does the same, extend the notification wait framework to allow you to wait for multiple commands and decide based on the command whether the wait finished. While at it, also fix a race that can then become relevant -- if the wait function has returned true once it shouldn't be called again, today this can happen due to races between the triggering and the wakeup. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: process multiple frames per RXBJohannes Berg2012-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | The flow handler (hardware) can put multiple frames into a single RX buffer. To handle this, walk the RX buffer and check if there are multiple valid packets in it. To let the upper layer handle this correctly introduce rxb_offset() which is needed when we pass pages to mac80211 -- we need to know the offset into the page there. Also change the page handling scheme to use refcounting. Anyone who needs a page will "steal" it, which marks it as having been used & refcounts it. The RX handler then has to free its own reference and must not reuse the page. Finally, do not set the bit asking the FH to give us each packet in a single buffer. This really enables the feature. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: remove un-needed parameterWey-Yi Guy2012-04-09
| | | | | | | | get rid of un-needed parameter Change-Id: I992741e7382a3dbced7f8413bf1d5f301029d576 Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: phy_db structureDavid Spinadel2012-04-09
| | | | | | | | Add iwl_phy_db structure and API. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: warn if db.txt is empty with CONFIG_CFG80211_INTERNAL_REGDBLuis R. Rodriguez2012-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It has happened twice now where elaborate troubleshooting has undergone on systems where CONFIG_CFG80211_INTERNAL_REGDB [0] has been set but yet net/wireless/db.txt was not updated. Despite the documentation on this it seems system integrators could use some more help with this, so throw out a kernel warning at boot time when their database is empty. This does mean that the error-prone system integrator won't likely realize the issue until they boot the machine but -- it does not seem to make sense to enable a build bug breaking random build testing. [0] http://wireless.kernel.org/en/developers/Regulatory/CRDA#CONFIG_CFG80211_INTERNAL_REGDB Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Youngsin Lee <youngsin@qualcomm.com> Cc: Raja Mani <rmani@qca.qualcomm.com> Cc: Senthil Kumar Balasubramanian <senthilb@qca.qualcomm.com> Cc: Vipin Mehta <vipimeht@qca.qualcomm.com> Cc: yahuan@qca.qualcomm.com Cc: jjan@qca.qualcomm.com Cc: vthiagar@qca.qualcomm.com Cc: henrykim@qualcomm.com Cc: jouni@qca.qualcomm.com Cc: athiruve@qca.qualcomm.com Cc: cjkim@qualcomm.com Cc: philipk@qca.qualcomm.com Cc: sunnykim@qualcomm.com Cc: sskwak@qualcomm.com Cc: kkim@qualcomm.com Cc: mattbyun@qualcomm.com Cc: ryanlee@qualcomm.com Cc: simbap@qualcomm.com Cc: krislee@qualcomm.com Cc: conner@qualcomm.com Cc: hojinkim@qualcomm.com Cc: honglee@qualcomm.com Cc: johnwkim@qualcomm.com Cc: jinyong@qca.qualcomm.com Cc: stable@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix the RANN propagation issuesChun-Yeow Yeoh2012-04-09
| | | | | | | | | | | | This patch is intended to solve the follwing issues in RANN propagation: [1] The interval in propagated RANN should be based on the interval of received RANN. [2] The aggregated path metric for propagated RANN is as received plus own link metric towards the transmitting mesh STA (not root mesh STA). [3] The comparison of path metric for RANN with same sequence number should be done before deciding whether to propagate or not. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* rtlwifi: Preallocate USB read buffers and eliminate kalloc in read routineLarry Finger2012-04-09
| | | | | | | | | | | | | | | | | The current version of rtlwifi for USB operations uses kmalloc to acquire a 32-bit buffer for each read of the device. When _usb_read_sync() is called with the rcu_lock held, the result is a "sleeping function called from invalid context" BUG. This is reported for two cases in https://bugzilla.kernel.org/show_bug.cgi?id=42775. The first case has the lock originating from within rtlwifi and could be fixed by rearranging the locking; however, the second originates from within mac80211. The kmalloc() call is removed from _usb_read_sync() by creating a ring buffer pointer in the private area and allocating the buffer data in the probe routine. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> [This version good for 3.3+ - different patch for 3.2 - 2.6.39] Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix the sparse warnings on endian handling in RANN propagationChun-Yeow Yeoh2012-04-09
| | | | | | | | | | The HWMP sequence number of received RANN element is compared to decide whether to be propagated. The sequence number is required to covert from 32bit little endian data into CPUs endianness for comparison. The same applies to the RANN metric. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: when receiving DTIM disable power-save mode only if it was enabledRonald Wahl2012-04-09
| | | | | | | | | | | | | | When receiving DTIM we currently disable power save mode in the hardware unconditionally, i.e. also when the hardware was not sleeping. This causes trouble with at least one wireless chipset (Ralink RT3572). When the hardware is not sleeping and we send a wakeup command (e.g. this happens after a scan) then a significant decrease of the link quality or a disconnect may occur. Disabling power save mode only when it was enabled prevents this issue. Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com> Reviewed-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: optimize aggregation session timeout handlingFelix Fietkau2012-04-09
| | | | | | | | | | | | | | | | Calling mod_timer from the rx/tx hotpath is somewhat expensive, and the timeout doesn't need to be so precise. Switch to a different strategy: Schedule the timer initially, store jiffies of all last rx/tx activity which would previously modify the timer, and let the timer re-arm itself after checking the last rx/tx timestamp. Make the session timers deferrable to avoid causing extra wakeups on systems running on battery. This visibly reduces CPU load under high network load on small embedded systems. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: reduce code duplication in debugfs codeFelix Fietkau2012-04-09
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: use compare_ether_addr on MAC addresses instead of memcmpFelix Fietkau2012-04-09
| | | | | | | | Because of the constant size and guaranteed 16 bit alignment, the inline compare_ether_addr function is much cheaper than calling memcmp. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-29 17:23:16 -0400