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* Merge branch 'master' of ↵David S. Miller2010-02-2520-157/+418
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-core.h drivers/net/wireless/rt2x00/rt2800pci.c
| * iwlwifi: add debugfs to monitor force reset parametersWey-Yi Guy2010-02-191-2/+32
| | | | | | | | | | | | | | | | | | Adding debugfs file to monitor the counters and other information related to "force_reset" request. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * iwlwifi: separated time check for different type of force resetWey-Yi Guy2010-02-193-12/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | Use different timing duration check for different type of force reset, force reset request can come from different source and based on different reason; one type of reset request should not block other type of reset request. Adding structure to keep track of different force reset request. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * iwlwifi: indicate calib version for 6050 seriesAbhijeet Kolekar2010-02-193-3/+79
| | | | | | | | | | | | | | | | Indicate calibration version to uCode Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * iwlwifi: enable serialization of synchronous commandsReinette Chatre2010-02-197-10/+13
| | | | | | | | | | | | | | | | | | | | | | | | Until now it was only possible to have one synchronous command running at any time. If a synchronous command is in progress when a second request arrives then the second command will fail. Create a new mutex specific for this purpose to only allow one synchronous command at a time, but enable other commands to wait instead of fail if a synchronous command is in progress. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * iwl3945: remove STATUS macros from headerReinette Chatre2010-02-193-20/+2
| | | | | | | | | | | | | | | | | | | | iwl3945 includes iwl-core.h in which these STATUS flags are already defined. This also removes a potential confusing definition with iwlcore using STATUS_MODE_PENDING with value 18 and iwl3945 defining (but not using) STATUS_CONF_PENDING for value 18. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * iwlwifi: Monitor and recover the aggregation TX flow failureTrieu 'Andrew' Nguyen2010-02-113-1/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change monitors the tx statistics to detect the drop in throughput. When the throughput drops, the ratio of the actual_ack_count and the expected_ ack_count also drops. At the same time, the aggregated ba_timeout (the number of ba timeout retries) also rises. If the actual_ack_count/expected_ack_count ratio is 0 and the number of ba timeout retries rises to 16, no tx packets (tcp, udp, or ping - icmp) can be delivered. The driver recovers from this situation by reseting the uCode firmware. If the actual_ack_count/expected_ ack_count ratio drops below 50% (but not 0) and the aggregated ba_timeout retries just exceed 5 (but not 16), then the driver can reset the radio to bring the throughput up. Signed-off-by: Trieu 'Andrew' Nguyen <trieux.t.nguyen@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: clear all the stop_queue flag after load firmwareWey-Yi Guy2010-02-112-0/+10
| | | | | | | | | | | | | | | | | | | | | | All the queues are awake and ready to use after loading firmware, for firmware reload case, if any queues was stopped before reload, mac80211 will wake those queues after restart hardware, so make sure all the flag used to keep track of the queue status are reset correctly. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: use dma_alloc_coherentStanislaw Gruszka2010-02-116-43/+44
| | | | | | | | | | | | | | | | Change pci_alloc_consistent() to dma_alloc_coherent() so we can use GFP_KERNEL flag. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: Adjusting PLCP error threshold for 1000 NICTrieu 'Andrew' Nguyen2010-02-112-2/+3
| | | | | | | | | | | | | | | | | | | | While testing the station with the NIC 1000 family, it is found that the plcp error can easily exceed 50 value in 100mSecs. This creates unneccessary radio reset/tuning. This patch raises the PLCP error threshold of the NIC 1000 from 50 to 200 error count. Signed-off-by: Trieu 'Andrew' Nguyen <trieux.t.nguyen@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: reset card during probeReinette Chatre2010-02-112-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | To ensure that card is in a sane state during probe we add a reset call. This change was prompted by users of kdump who was not able to bring up the wireless driver in the kdump kernel. The problem here was that the primary kernel, which is not running at the time, left the wireless card up and running. When the kdump kernel starts it is thus possible to immediately receive interrupts from firmware after registering interrupt, but without being ready to deal with interrupts from firmware yet. Reported-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: fix scan raceReinette Chatre2010-02-111-15/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a problem if an "internal short scan" is in progress when a mac80211 requested scan arrives. If this new scan request arrives within the "next_scan_jiffies" period then driver will immediately return success and complete the scan. The problem here is that the scan has not been fully initialized at this time (is_internal_short_scan is still set to true because of the currently running scan), which results in the scan completion never to be sent to mac80211. At this time also, evan though the internal short scan is still running the state (is_internal_short_scan) will be set to false, so when the internal scan does complete then mac80211 will receive a scan completion. Fix this by checking right away if a scan is in progress when a scan request arrives from mac80211. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: cleanup return valuesAbhijeet Kolekar2010-02-114-37/+17
| | | | | | | | | | | | | | Cleanup return values and removes unnecessary code. Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: remove unused op-code in PHY Calibration commandWey-Yi Guy2010-02-111-4/+0
| | | | | | | | | | | | | | | | Number of calibration op-code are not used by driver, remove those from iwl-commands.h Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: check for aggregation frame and queueWey-Yi Guy2010-02-112-7/+26
| | | | | | | | | | | | | | | | | | | | | | Error checking for aggregation frames should go into aggregation queue, if aggregation queue not available, use legacy queue instead. Also make sure the aggregation queue is available to activate, if driver and mac80211 is out-of-sync, try to disable the queue and sync-up with mac80211. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: add debug function to reset/reload radio/firmwareWey-Yi Guy2010-02-111-0/+28
| | | | | | | | | | | | | | Adding function to force reset radio or reload firmware from debugfs. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: multiple force reset modeWey-Yi Guy2010-02-115-15/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide the function to perform different type of uCode reset/reload operation. When uCode detect error and can not fix itself, this iwl_force_reset() function allow driver to perform the necessary reset/reload functions and help to bring uCode back to normal operation state. Currently only 2 type of force reset are available: - reset radio - reload firmware Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * iwlwifi: clear all tx queues when firmware readyWey-Yi Guy2010-02-112-0/+4
| | | | | | | | | | | | | | | | Reset and clear all the tx queues when finished downloading runtime uCode and ready to go into operation mode. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
* | Merge branch 'master' of ↵David S. Miller2010-02-255-9/+27
|\ \ | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * \ Merge branch 'master' of ↵David S. Miller2010-02-235-9/+27
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * | iwlwifi: sanity check before counting number of tfds can be freeStanislaw Gruszka2010-02-222-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check the frame control for ieee80211_is_data_qos() is true before counting the number of tfds can be free, the tfds_in_queue only increment when ieee80211_is_data_qos() is true before transmit; so it should only decrement if the type match. Remove ieee80211_is_data_qos check for frame_ctrl in tx_resp to avoid invalid information pass from uCode. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | iwlwifi: error checking for number of tfds in queueWey-Yi Guy2010-02-224-4/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When receive reply_tx and ready to decrement the count for number of tfds in queue, do error checking to prevent error condition and tfds_in_queue become negative number. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | iwlwifi: set HT flags after channel in rxonDan Halperin2010-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HT extension channel settings require priv->staging_rxon.channel to be accurate. However, iwl_set_rxon_ht was being called before iwl_set_rxon_channel and thus HT40 could be broken unless another call to iwl_mac_config came in. This problem was recently introduced by "iwlwifi: Fix to set correct ht configuration" The particular setting in which I noticed this was monitor mode: iwconfig wlan0 mode monitor ifconfig wlan0 up ./iw wlan0 set channel 64 HT40- #./iw wlan0 set channel 64 HT40- tcpdump -i wlan0 -y IEEE802_11_RADIO would only catch HT40 packets if I issued the IW command twice. From visual inspection, iwl_set_rxon_channel does not depend on iwl_set_rxon_ht, so simply swapping them should be safe and fixes this problem. Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | | Merge branch 'master' of ↵David S. Miller2010-02-141-1/+4
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/mac80211/rate.c
| * | | Merge branch 'master' of ↵David S. Miller2010-02-141-1/+4
| |\ \ \ | | |/ / | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * | iwlwifi: fix AMSDU Rx after paged Rx patchShanyu Zhao2010-02-121-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous patch "use paged Rx" broke AMSDU Rx functionality. If an AP sends out A-MSDU packets the station will crash. Fix it by linearizing skbuff for AMSDU packet before handing it to mac80211 since mac80211 doesn't support paged skbuff. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2155 Reported-by: Norbert Preining <preining@logic.at> Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com> Acked-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | Merge branch 'master' of ↵David S. Miller2010-02-101-0/+1
| |\ \ \ | | |/ / | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
* | | | Merge branch 'master' of ↵David S. Miller2010-02-148-76/+65
|\ \ \ \ | | |_|/ | |/| | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * | | iwlwifi: remove get_tx_stats() mac80211 opKalle Valo2010-02-084-40/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | get_tx_stats() will be removed from mac80211. Compile-tested only. Cc: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | iwlwifi: Send broadcast probe request only when asked toSamuel Ortiz2010-02-082-17/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running directed active scans we currently end up sending both the SSID probe requests and an additional broadcast one. This is due to the fact that we always leave the probe request template SSID IE length to 0. Instead we should set it to the first SSID to scan, and fill the direct_scan array with the remaining SSIDs to scan for. This way we only send what we've been asked to: a broadcast probe request when no directed scan is requested, and directed probe requests otherwise. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | iwlwifi: Add chain_noise support for 6050Ben Cahill2010-02-081-17/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Existing iwl6050_ops->iwl6050_hcmd_utils structure had no pointers to chain noise functions (gain_computation and chain_noise_reset). As it turns out, by adding chain_noise_scale (see related patch), there is no need for separate chain noise function, so simply use iwl6000_ops->iwl5000_hcmd_utils, and remove those for 6050. Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | iwlwifi: Add chain noise scaling factorBen Cahill2010-02-084-2/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 6x50 device requires a different scaling factor for Rx gain values sent to device via PHY_CALIBRATION_CMD (CHAIN_NOISE_GAIN_CMD). Rather than create a new iwlXXXX_gain_computation() function, add new chain_noise_scale member to struct iwl_cfg, and keep using iwl5000_gain_computation(). Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | Merge branch 'master' of ↵John W. Linville2010-02-082-2/+3
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: net/mac80211/scan.c
| | * | iwlwifi: Fix to set correct ht configurationWey-Yi Guy2010-02-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iwl_set_rxon_ht() only get called in iwl_post_associate(); which cause possible incorrect ht configuration. Adding the call in iwl_mac_config() if IEEE80211_CONF_CHANGE_CHANNEL flag is set to re-configure and send rxon command. Fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2146 Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | | Merge branch 'master' of ↵David S. Miller2010-02-0449-1100/+1620
|\ \ \ \ | |/ / / | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * | | iwlwifi: iwl_power_update_mode always hold mutexReinette Chatre2010-01-292-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iwl_power_update_mode expects to be called with mutex held, for example to protect priv->vif. Only one caller currently does not do this, fix this. Also, add a comment to iwl_power_update_mode to indicate this requirement. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: fix typo in IWL_CCK_RATES_MASKJohannes Berg2010-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to a typo, the variable contains OFDM rates as well. The only user doesn't care, so this change doesn't really do anything but fix up my confusion. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | | iwlwifi: remove unused work structsJohannes Berg2010-01-291-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | auth_work, calibrated_work, update_link_led and report_work are never used, so remove them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: remove bg_up workJohannes Berg2010-01-293-29/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to queue a work struct from within a work struct, just move the code to execute directly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlagn: simplify ucode loadingJohannes Berg2010-01-291-41/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the waiting into iwl5000_load_section instead of duplicating it in the caller. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: no need to test iw_mode in power savingJohannes Berg2010-01-291-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | mac80211 will only enable powersaving for station mode. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: update sensitivity calibration data for 1000 seriesWey-Yi Guy2010-01-291-1/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Update sensitivity range values for 1000 series Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: update sensitivity calibration data for 5x00 seriesWey-Yi Guy2010-01-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Update sensitivity range values for 5x00 series Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: update sensitivity calibration data for 6x00 seriesWey-Yi Guy2010-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Update sensitivity range values for 6000 & 6x50 series Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: fix locking in iwl_mac_add_interfaceJohannes Berg2010-01-291-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The corresponding iwl_mac_remove_interface only acquires the mutex, leading me to believe that the spinlock is not necessary. However, this doesn't actually acquire the mutex around the vif pointer check and assignment, fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: sysassert identifier changeWey-Yi Guy2010-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change in uCode to include a unique identifier as part of sysassert, in order to tell the difference, add the "ADVANCED SYSASSERT" description when dump nic error to indicate the difference. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | iwlwifi: optimize power savingDaniel Halperin2010-01-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In hostap AP mode, every time the client sends the AP a packet the STA_NOTIFY_AWAKE code is sent from mac80211. This results in a command being sent to the uCode even if the client was not asleep. The following simple patch has fixed the issue for me without any degradation that I can find. Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| * | | mac80211: wait for beacon before enabling powersaveJohannes Berg2010-01-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because DTIM information is required for powersave but is only conveyed in beacons, wait for a beacon before enabling powersave, and change the way the information is conveyed to the driver accordingly. mwl8k doesn't currently seem to implement PS but requires the DTIM period in a different way; after talking to Lennert we agreed to just have mwl8k do the parsing itself in the finalize_join work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | iwlwifi: fix throughput degradation in aggregation modeDaniel Halperin2010-01-251-14/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following commit commit e4da8c37af626001ff704fb29ea14eb58f5f7208 Author: Johannes Berg <johannes@sipsolutions.net> Date: Wed Dec 23 13:15:43 2009 +0100 mac80211: make off-channel work generic triggered a bug in iwlwifi where HT parameters would not be correctly set in some mac80211 pathways. The aggregation (and possibly other) station flags were not being set, which limited the size of aggregation blocks and reduced throughput at high rates. >From Johannes: """ Due to Wey-Yi's patch to use the set-channel command when the channel changes while associated, we don't get a full new RXON. Therefore, we don't re-set the rxon-station either. However, under some circumstances that apparently have gotten more likely mac80211 will first set up the BSS info, then add the station and then switch to an HT channel type. Therefore, the check for "priv->current_ht_config.is_ht" in iwl_rxon_add_station() will hit false and not fill in the HT information. However, that check can just be removed, which is the easiest fix for all this, because the HT capa struct is always there, just could possibly have the ht_supported member set to false. """ A sample good link in my 3x3 network improves by approximately 25% TCP throughput. This fixes Bug 2144 (http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2144). Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | iwlwifi: cleanup spectrum measurement command supportReinette Chatre2010-01-258-247/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In iwlagn the support for spectrum measurement command has been disabled since v2.6.29 without any requests for it. In addition to this when this command is indeed enabled it has been found to trigger firmware SYSASSERT on at least 4965 and 5100 hardware (see http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1952 ). Since then this code has been bitrotting and cannot just be enabled without porting. Remove support for spectrum measurement command from iwlagn. It can be added back if there is a future need and the firmware problem it triggers has been fixed. Support for the spectrim measurement notification remains as it has been enabled all the time. In addition to this remove the 3945 spectrum measurement command Kconfig option and make this command always supported. The code added by this enabling is minimal and only run when user triggers a spectrum measurement request via sysfs. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.1 at 2024-09-08 13:46:08 +0000