- 15 Nov, 2010 40 commits
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Juuso Oikarinen authored
Check the state of the interface on op_* function so we don't try to access the hardware in when its off. The mac80211 may call these in some corner cases related, for instance, to the hardware recovery procedure. These accesses cause a kernel crash on at least some SDIO devices, because the bus is not properly claimed in that scenario. Signed-off-by:
Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by:
Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by:
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Juuso Oikarinen authored
In scan_complete_work, because the mutex is released before accessing the scan->failed flag, it is possible for unfounded hardware recovery rounds to be executed. Fix this. Signed-off-by:
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Juuso Oikarinen authored
The wl1271_rx function loops through packets in an aggregated buffer. Each packet in the buffer is handled by a call to wl1271_rx_handle_data, which will fail if skb memory allocation fails or production mode is enabled. These failures currently prevent the rx counters to be incremented, thus causing the rx loop to run forever. Fix this by ignoring error codes reported wl1271_rx_handle_data function. This essentially means that frames will be dropped in production mode, which is the intetion, and frames will be dropped if memory allocation fails, which is a decent way to recover from that situation. Signed-off-by:
Tuomas Katila <ext-tuomas.2.katila@nokia.com> Reviewed-by:
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Nicolas Kaiser authored
wl1271_ps_elp_sleep() is void and cannot return a value. Signed-off-by:
Nicolas Kaiser <nikai@nikai.net> Reviewed-by:
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Luciano Coelho authored
This bug was being triggered by a call to acx_rate_policies in tx_work without calling ps_elp_wakeup first. If we have full PSM enabled, this happens rather often, immediately after association. Reported-by:
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Teemu Paasikivi authored
While scanning, it is possible that beacon and probe response frames are received on other band than configured to the driver. In rx status handling this has caused "Unsupported RX rate from HW" warnings. This patch changes the wl1271_rate_to_index function to take the band of the received frame as a parameter instead of using value configuret to wl->band. Signed-off-by:
Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Reviewed-by:
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Shahar Levi authored
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:
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Shahar Levi authored
Added ACX command to the FW for 11n support. Signed-off-by:
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Shahar Levi authored
Two acx commands: ht_capabilities & ht_information, 11n sta capabilities macro. Signed-off-by:
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Ido Yariv authored
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:
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Ido Yariv authored
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:
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Ido Yariv authored
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:
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Ido Yariv authored
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:
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Gery Kahn authored
Cosmetic cleanup for ref_clock code while configured by board. Signed-off-by:
Gery Kahn <geryk@ti.com> Signed-off-by:
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Wey-Yi Guy authored
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>
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Wey-Yi Guy authored
Adding description to Kconfig to indicate more devices are being supported by iwlagn Signed-off-by:
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Wey-Yi Guy authored
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:
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Johannes Berg authored
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:
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Johannes Berg authored
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:
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Johannes Berg authored
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:
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Johannes Berg authored
Resending RXON timing here caused issues with dual-mode under certain circumstances, so avoid doing it here right now. This effectively reverts b01efe43 and partially 2491fa42. The next patch will make all this cleaner for just the devices that need it. Signed-off-by:
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Johannes Berg authored
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:
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Eliad Peller authored
refactor mac80211 debugfs code by using a format© function, instead of duplicating the code for each generated function. this change reduces about 600B from mac80211.ko Signed-off-by:
Eliad Peller <eliad@wizery.com> Signed-off-by:
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Luis R. Rodriguez authored
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=2Tested-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:
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Luis R. Rodriguez authored
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=2Tested-by:
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Luis R. Rodriguez authored
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=2Tested-by:
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Mohammed Shafi Shajakhan authored
This takes care that boolean types are properly assigned Signed-off-by:
Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by:
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Rajkumar Manoharan authored
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:
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John W. Linville authored
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:
Rafael J. Wysocki <rjw@sisk.pl> Acked-by:
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John W. Linville authored
Signed-off-by:
Ivo van Doorn <IvDoorn@gmail.com>
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John W. Linville authored
This code seems to have been cut-n-pasted from alloc_ringmemory? Anyway, it is useless. Signed-off-by: -
Hauke Mehrtens authored
Signed-off-by:
Hauke Mehrtens <hauke@hauke-m.de> Acked-by:
Christian Lamparter <chunkeey@googlemail.com> Signed-off-by:
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Rafał Miłecki authored
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:
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Rafał Miłecki authored
Signed-off-by:
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Rafał Miłecki authored
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Rafał Miłecki authored
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Stanislaw Gruszka authored
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:
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Stanislaw Gruszka authored
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:
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Stanislaw Gruszka authored
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:
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Stanislaw Gruszka authored
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:
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