- 15 Nov, 2010 40 commits
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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:
Ido Yariv <ido@wizery.com> Reviewed-by:
Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by:
Luciano Coelho <luciano.coelho@nokia.com>
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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
Signed-off-by:
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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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Stanislaw Gruszka authored
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:
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Stanislaw Gruszka authored
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:
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Stanislaw Gruszka authored
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:
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Felix Fietkau authored
- reduce the number of retransmission attempts for sample rates - sample lower rates less often - do not use RTS/CTS for sampling frames - increase the time between sampling attempts Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Felix Fietkau authored
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:
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Luis R. Rodriguez authored
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:
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Luis R. Rodriguez authored
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:
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Luis R. Rodriguez authored
Everyone's doing it, its the cool thing. Cc: Easwar Krishnan <easwar.krishnan@atheros.com> Signed-off-by:
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Luis R. Rodriguez authored
In the worst case you are seeing really odd things you want more information than what is provided right now, for those that insist and want debug info through CONFIG_CFG80211_REG_DEBUG provide a print of when we are processing a channel and with what regulatory rule. Cc: Easwar Krishnan <easwar.krishnan@atheros.com> Signed-off-by:
Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by:
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Luis R. Rodriguez authored
Cc: Easwar Krishnan <easwar.krishnan@atheros.com> Signed-off-by:
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