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* wl1271: 11n Support, functionality and configuration abilityShahar Levi2010-11-154-18/+105
| | | | | | | | | | Add 11n ability in scan, connection and using MCS rates. The configuration is temporary due to the code incomplete and still in testing process. That plans to be remove in the future. Signed-off-by: Shahar Levi <shahar_levi@ti.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: 11n Support, ACX CommandsShahar Levi2010-11-152-0/+88
| | | | | | | | Added ACX command to the FW for 11n support. Signed-off-by: Shahar Levi <shahar_levi@ti.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: 11n Support, Add DefinitionsShahar Levi2010-11-153-1/+106
| | | | | | | | | Two acx commands: ht_capabilities & ht_information, 11n sta capabilities macro. Signed-off-by: Shahar Levi <shahar_levi@ti.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: Fix TX queue low watermark handlingIdo Yariv2010-11-151-13/+22
| | | | | | | | | | | | | | | | | | The number of entries in the TX queue is compared to the low watermark value each time TX completion interrupts are handled. However, the fact that a TX completion arrived does not necessarily mean there are any less skbs in the TX queue. In addition, a TX completion interrupt does not necessarily mean that there are any new available TX blocks. Thus, queuing TX work when the low watermark is reached might not be needed. Fix this by moving the low watermark handling to the TX work function, and avoid queuing TX work in this case. Signed-off-by: Ido Yariv <ido@wizery.com> Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: Allocate TX descriptors more efficientlyIdo Yariv2010-11-153-16/+24
| | | | | | | | | | | | On each TX descriptor allocation, a free entry is found by traversing the TX descriptors array. Improve this by holding a bitmap of all TX descriptors, and using efficient bit operations to search for free entries. Signed-off-by: Ido Yariv <ido@wizery.com> Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: Fix TX starvationIdo Yariv2010-11-154-8/+27
| | | | | | | | | | | | | | | While wl1271_irq_work handles RX directly (by calling wl1271_rx), a different work is scheduled for transmitting packets. The IRQ work might handle more than one interrupt during a single call, including multiple TX completion interrupts. This might starve TX, since no packets are transmitted until all interrupts are handled. Fix this by calling the TX work function directly, instead of deferring it. Signed-off-by: Ido Yariv <ido@wizery.com> Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: TX aggregation optimizationIdo Yariv2010-11-151-8/+19
| | | | | | | | | | | | | | In case the aggregation buffer is too small to hold all available packets, the buffer is transferred to the FW and no more packets are aggregated. Although there may be enough available TX blocks, no additional packets will be handled by the current TX work. Fix this by flushing the aggregation buffer when it's full, and continue transferring packets as long as there are enough available TX blocks. Signed-off-by: Ido Yariv <ido@wizery.com> Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* wl1271: ref_clock cosmetic changesGery Kahn2010-11-151-6/+4Star
| | | | | | | Cosmetic cleanup for ref_clock code while configured by board. Signed-off-by: Gery Kahn <geryk@ti.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
* iwlagn: use 6000g2b uCode for 130 series devicesWey-Yi Guy2010-11-151-11/+4Star
| | | | | | | | For 130 series device, 6000g2b uCode will be used, no need to have additional defines for 130 devices, so remove those. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: add new devices to KconfigWey-Yi Guy2010-11-151-0/+3
| | | | | | | | Adding description to Kconfig to indicate more devices are being supported by iwlagn Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: turn dynamic smps on while BT is onWey-Yi Guy2010-11-151-1/+4
| | | | | | | | | While BT is on and doing iscan and/or pscan, BT is in listen mode which will impact WiFi throughput, we need to enable dynamic smps in order to improve the rx throughput. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: implement switching iftype while upJohannes Berg2010-11-155-44/+130
| | | | | | | | | | Implement switching the interface while an interface is up in iwlwifi. Interfaces have to stay on the context they were created on. 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: fix IBSS beaconingJohannes Berg2010-11-151-11/+36
| | | | | | | | | | | | | | | | My previous patch to clean up all RXON handling inadvertently broke IBSS because it failed to take into account that unlike in AP mode, IBSS requires beacons to be sent only after setting the RXON assoc. Fix this, clean up the code a bit, improve the error checking around this, and also react to beacon changes in IBSS mode from mac80211. 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>
* iwlagn: new RXON processing for modern devicesJohannes Berg2010-11-1517-936/+1631
| | | | | | | | | | | | | | | | | | | | | | | | | | In order to simplify the flow, and make new enhancements easier, separate out the RXON processing for modern AGN (5000 and newer) from RXON processing for the older 3945 and 4965 devices. Avoid changing these old ones to avoid regressions and move their code to a new file (iwl-legacy.c). 4965 gets the commit_rxon that used to be common for all AGN devices, but with removed PAN support. The new RXON processing is more central and does more work in committing, so that it is easier to follow. To make it more evident what is split out for legacy, split the necessary operations for that into a new struct iwl_legacy_ops. Those parts that still exist in the new AGN code don't need to be parametrized. 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>
* iwlagn: don't resend RXON timingJohannes Berg2010-11-151-14/+0Star
| | | | | | | | | | | | | | | Resending RXON timing here caused issues with dual-mode under certain circumstances, so avoid doing it here right now. This effectively reverts b01efe434bd6ea807eb72b and partially 2491fa42d9bdf26075765. The next patch will make all this cleaner for just the devices that need 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: make mac80211 ops a device configJohannes Berg2010-11-1511-12/+25
| | | | | | | | | | | | In the future, 4965 and modern AGN devices will need to have different mac80211 callbacks since they have different capabilities. Prepare for that by making the mac80211 operations a device config. 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>
* ath9k: content DMA start / stop through the PCU lockLuis R. Rodriguez2010-11-152-28/+26Star
| | | | | | | | | | | | | | | | | | This helps align resets / RX enable & disable / TX stop / start. Locking around the PCU is important to ensure the hardware doesn't get stale data when working with DMA'able data. This is part of a series of patches which fix stopping TX DMA completley when requested on the driver. For more details about this issue refer to this thread: http://marc.info/?l=linux-wireless&m=128629803703756&w=2 Tested-by: Ben Greear <greearb@candelatech.com> Cc: Kyungwan Nam <kyungwan.nam@atheros.com> Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: move the PCU lock to the sc structureLuis R. Rodriguez2010-11-154-25/+25
| | | | | | | | | | | | | | | | | The PCU lock should be used to contend TX DMA as well, this will be done next. This is part of a series of patches which fix stopping TX DMA completley when requested on the driver. For more details about this issue refer to this thread: http://marc.info/?l=linux-wireless&m=128629803703756&w=2 Tested-by: Ben Greear <greearb@candelatech.com> Cc: Kyungwan Nam <kyungwan.nam@atheros.com> Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: simplify hw reset lockingLuis R. Rodriguez2010-11-154-20/+8Star
| | | | | | | | | | | | | | | | | The new PCU lock is better placed so we can just contend against that when trying to reset hardware. This is part of a series of patches which fix stopping TX DMA completley when requested on the driver. For more details about this issue refer to this thread: http://marc.info/?l=linux-wireless&m=128629803703756&w=2 Tested-by: Ben Greear <greearb@candelatech.com> Cc: Kyungwan Nam <kyungwan.nam@atheros.com> Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Properly assign boolean typesMohammed Shafi Shajakhan2010-11-151-7/+5Star
| | | | | | | This takes care that boolean types are properly assigned Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_htc: Handle monitor mode properly for HTC devicesRajkumar Manoharan2010-11-151-59/+5Star
| | | | | | | | | No need to inform about monitor interface changes to firmware. Set the HW mode to monitor type based on mac80211 indication flag is sufficient. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: Convert to new PCI PM frameworkJohn W. Linville2010-11-154-23/+27
| | | | | | | | | | | Use the new PCI PM and let the PCI core code handle the PCI-specific details of power transitions. Based on similarly titled ath9k patch posted by Rafael J. Wysocki. Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* rt2x00pci: do not use GFP_DMAJohn W. Linville2010-11-151-1/+1
| | | | | Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
* b43: remove extraneous code in free_ringmemoryJohn W. Linville2010-11-151-5/+0Star
| | | | | | | This code seems to have been cut-n-pasted from alloc_ringmemory? Anyway, it is useless. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* carl9170: fix typosHauke Mehrtens2010-11-152-2/+2
| | | | | | Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* b43: N-PHY: improve 2055 radio initializationRafał Miłecki2010-11-151-4/+7
| | | | | | | | 1) Upload 5 GHz values when needed. 2) Do not upload all values on first init. Follow wl. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* b43: N-PHY: determine usage of radio regulatory workaround correctlyRafał Miłecki2010-11-151-1/+2
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* b43: define known SPROM boardflags2 bitsRafał Miłecki2010-11-151-0/+13
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* b43: N-PHY: fix 2055 radio initRafał Miłecki2010-11-151-3/+5
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: avoid commit rxon during scan in iwl_set_no_assocStanislaw Gruszka2010-11-151-12/+14
| | | | | | | | | | Currently we are canceling scan when changing BSSID. Behave the same when changing association and beacon enablement, to avoid committing rxon during scan in iwl_set_no_assoc(). Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: defer update power mode while scanStanislaw Gruszka2010-11-153-35/+64
| | | | | | | | | Do not set power mode when scanning, and defer that when scan finish. We still set power mode in force case i.e. when device is overheated. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: avoid commit rxon during scan in iwlagn_bt_traffic_change_workStanislaw Gruszka2010-11-151-1/+16
| | | | | | | | | | | Avoid sending commands to firmware (including commit_rxon) when scan is pending and we are calling iwlagn_bt_traffic_change_work simultaneously. Also comment some innocent race conditions. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: avoid commit rxon during scan in iwlagn_configure_filterStanislaw Gruszka2010-11-152-4/+8
| | | | | | | | | | | | | | | Almost anywhere in the code we avoid committing rxon while performing scan, and make rxon commit when scan complete. However in some places in the code we do not follow that rule. This patch fix that problem in iwlagn_configure_filter(). Since we do not commit directly in iwl3945_configure_filter, we can also do the same for agn, so I just remove iwlcore_commit_rxon() function and add a comment. Also change comment for iwl3945. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: fix set_tx_power vs scanStanislaw Gruszka2010-11-155-34/+42
| | | | | | | | | | | | | According to comment in iwl_bg_scan_completed, setting tx power should be deferred during pending scan, but we are not doing this. This patch change code to really defer setting tx power after scan complete. Additionally refactor iwl_set_tx_power code and call lib->send_tx_power() directly from iwlagn_commit_rxon. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: send tx_power_cmd synchronouslyStanislaw Gruszka2010-11-151-3/+2Star
| | | | | | | | | | On 5xxx and 6xxx change to send tx_power_cmd command synchronously, to do not start other commands when setting tx power is pending. We currently do the same for 4956 and 3945. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlwifi: warn when send tx power settings during scanStanislaw Gruszka2010-11-153-6/+10
| | | | | | | | | | | Add WARN_ONCE when scanning is pending. Use STATUS_SCAN_HW bit since we can have scan canceled or completed but STATUS_SCANNING bit still set. v1 -> v2: replace EIO to EAGAIN Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: fix potential spurious tx error bit interpretationFelix Fietkau2010-11-151-7/+9
| | | | | | | | | | | | According to documentation, AR_ExcessiveRetries, AR_Filtered and AR_FIFOUnderrun are only valid if AR_FrmXmitOK is clear. Not checking this might result in suboptimal FIFO settings, unnecessary retransmissions, or other connectivity issues. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: add a debug warning when we cannot stop RXLuis R. Rodriguez2010-11-151-0/+2
| | | | | | | | | | | | | | | | | | | | We have seen several DMA races when we race against stopping and starting the PCU. I suspect that when we cannot stop the PCU we may hit some of these same races so warn against them for now but only when debugging (CONFIG_ATH_DEBUG) is enabled. If you run into this warning and are a developer, please fix the cause of the warning. The potential here, although I cannot prove yet, is that the DMA engine can be confused and start writing to a buffer that was already DMA'd before and at least the kernel assumes is not being accessed by hardware anymore. Cc: Ben Greear <greearb@candelatech.com> Cc: Kyungwan Nam <kyungwan.nam@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: add a ATH_DBG_WARN()Luis R. Rodriguez2010-11-151-0/+2
| | | | | | | | | | | | | To be used to throw out warnings only for developers. This can be used by some corner cases that developers already know can be hit but developers want to address so to avoid spewing out a warning this can only be enabled with CONFIG_ATH_DEBUG enabled. Cc: Ben Greear <greearb@candelatech.com> Cc: Kyungwan Nam <kyungwan.nam@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: make ath5k_update_bssid_mask_and_opmode() staticLuis R. Rodriguez2010-11-151-2/+2
| | | | | | | | | | | This fixes this sparse warning: CHECK drivers/net/wireless/ath/ath5k/base.c drivers/net/wireless/ath/ath5k/base.c:569:6: warning: symbol 'ath5k_update_bssid_mask_and_opmode' was not declared. Should it be static? Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: make ath_hw_set_keycache_entry() staticLuis R. Rodriguez2010-11-151-3/+3
| | | | | | | | | | | This fixes this sparse warning: CHECK drivers/net/wireless/ath/key.c drivers/net/wireless/ath/key.c:110:6: warning: symbol 'ath_hw_set_keycache_entry' was not declared. Should it be static? Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath: make ath_hw_keysetmac() staticLuis R. Rodriguez2010-11-151-1/+2
| | | | | | | | | | This fixes this sparse warning: CHECK drivers/net/wireless/ath/key.c drivers/net/wireless/ath/key.c:70:6: warning: symbol 'ath_hw_keysetmac' was not declared. Should it be static? Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: initialize per-channel tx power limits instead of hardcoding themFelix Fietkau2010-11-154-12/+45
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: extend ath9k_hw_set_txpowerlimit to test channel txpowerFelix Fietkau2010-11-1511-58/+79
| | | | | | | | | ath9k_hw_set_txpowerlimit gets an extra boolean parameter that - if set - causes the rate txpower table and the regulatory limit to be calculated and stored, without changing hardware registers. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: initialize regulatory->max_power_level in set_txpower for AR9003Felix Fietkau2010-11-151-0/+2
| | | | | | | The same is done for the older chip families as well. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: Add channel time to survey dataBruno Randolf2010-11-091-1/+19
| | | | | | | Include the channel utilization (busy, rx, tx) in the survey results. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath5k: Optimize descriptor alignmentBruno Randolf2010-11-091-9/+9
| | | | | | | | Similar to Felix Fietkau <nbd@openwrt.org> "ath9k_hw: optimize all descriptor access functions" (13db2a80244908833502189a24de82a856668b8a). Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Remove the median function in rate controlMohammed Shafi Shajakhan2010-11-091-19/+0Star
| | | | | | | | With the current rate control selection method the median function is nowhere used, so remove it. Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: optimize all descriptor access functionsFelix Fietkau2010-11-092-5/+5
| | | | | | | | | | | | | Because all of the descriptor data structures are marked as __packed, GCC assumes the worst case wrt. alignment and generates unaligned load/store instructions on MIPS for access to all fields. Since descriptors always have to be 4-byte-aligned, we can just mark the data structures with __aligned(4), which allows GCC to generate much more efficient code. Verified through disassembly and OProfile comparisons. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: Convert to new PCI PM frameworkRafael J. Wysocki2010-11-091-18/+22
| | | | | | | | | | | The ath9k driver uses the legacy PCI power management (suspend and resume) callbacks that apparently cause intermittent problems to happen (the adapter sometimes doesn't resume correctly on my Acer Ferrari One). Make it use the new PCI PM and let the PCI core code handle the PCI-specific details of power transitions. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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