- 13 Sep, 2011 1 commit
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Javier Cardona authored
Under failure conditions, the mesh stack sends PERR messages to the previous sender of the failed frame. This happens in the tx feedback path, in which the transmission queue lock may be taken. Avoid a deadlock by sending the path error via the pending queue. Signed-off-by:John W. Linville <linville@tuxdriver.com>
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- 30 Aug, 2011 8 commits
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Greg Dietsche authored
this comment refers to some code that was removed. Signed-off-by:
Greg Dietsche <Gregory.Dietsche@cuw.edu> Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
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Felix Fietkau authored
With sequence number and buffer allocation deferred to when they're needed for the first time, it becomes much easier to start dropping packets from the tid queue if necessary, e.g. when latency suddenly increases. This can lead to some future improvements in buffer management for better latency. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Felix Fietkau authored
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Felix Fietkau authored
It is only necessary for BAW tracking and moving it to the ath_buf makes it easier to add further improvements, such as deferring seqno allocation in the aggregation path. Signed-off-by:
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Felix Fietkau authored
Use a sk_buff_head instead containing skbs instead of a list_head containing ath_bufs. This makes it easier to decouple the aggregation code from the ath_buf struct Signed-off-by:
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Felix Fietkau authored
This saves some space in struct ath_frame_info Signed-off-by:
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Joe Perches authored
Changing the return type and removing the unused argument from ath_printk reduces code size. Add an __always_unused struct ath_common * to the macros that call ath_printk to avoid unused variable warnings. $ size drivers/net/wireless/ath/built-in.o* text data bss dec hex filename 1159859 16235 212000 1388094 152e3e drivers/net/wireless/ath/built-in.o.new 1164175 16235 212032 1392442 153f3a drivers/net/wireless/ath/built-in.o.old Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Joe Perches authored
The return value is never used so make it void. Reduces object size a tiny bit. $ size drivers/net/wireless/ath/built-in.o* text data bss dec hex filename 1164175 16235 212032 1392442 153f3a drivers/net/wireless/ath/built-in.o.new 1164819 16235 212032 1393086 1541be drivers/net/wireless/ath/built-in.o.old Signed-off-by:
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- 29 Aug, 2011 31 commits
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John W. Linville authored
Commit c302b2c9 ("wl12xx: Use a single fw for both STA and AP roles") changed the name of the firmware name definition, breaking the build of wl12xx/sdio_test.c. Signed-off-by:
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Larry Finger authored
Swatch reports the following warning for main.c: CHECK drivers/net/wireless/b43/main.c drivers/net/wireless/b43/main.c +4115 b43_wireless_core_stop(7) warn: variable dereferenced before check 'dev' After analysis, this is not a bug, but a false warning. Nonetheless, a cleanup is in order to prevent some future janitor proposing the wrong fix, as I did in my original patch. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Larry Finger authored
Smatch shows the following warnings: CHECK drivers/net/wireless/ath/ath9k/htc_drv_main.c drivers/net/wireless/ath/ath9k/htc_drv_main.c +1315 ath9k_htc_configure_filter(27) warn: inconsistent returns mutex:&priv->mutex: locked (1303) unlocked (1315) CHECK drivers/net/wireless/ath/ath9k/ar9003_eeprom.c drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +3321 ar9300_eeprom_restore_internal(20) warn: returning -1 instead of -ENOMEM is sloppy Signed-off-by:
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Rajkumar Manoharan authored
This patch keep track of number of samples that includes DMA debugs registers, PCU observe, CR, channel noise, cycle conters, noisefloor history buffer and last N number of tx and rx descriptor status. These samples are grouped in table manner which dumping in debgufs. Debugfs file location: <debugfs_mnt>/ieee80211/phy#/ath9k/samples Signed-off-by:Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by:
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Felix Fietkau authored
The recent commit "ath9k: Send legacy rated frames as unaggregated" introduced a check to ensure that packets with non-MCS rates set in the rate series will not be aggregated. However, it failed to check if the rate series is valid before testing the flags, thus breaking aggregation for normal MCS-only packets if the last series is unset. Signed-off-by:
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Rajkumar Manoharan authored
For AR9287 v1.3+ chips, MAC runs at 117MHz. But the initvals IFS parameters are loaded based on 44/88MHz clockrate. So eifs/usec from ini should not be used for AR9287 v1.3+. The mentioned values are tested on 2 chain HT40 mode. Signed-off-by:
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Rajkumar Manoharan authored
Initialize 9us slot time as that is what is used mostly (for non-ERP cases) and also to be in sync with initvals. Signed-off-by:
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Rafał Miłecki authored
It was tested on three BCM4331 devices, code has been written from MMIO dumps only, but seems to be quite stable. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Signed-off-by:
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Rafał Miłecki authored
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Larry Finger authored
When 64-bit DMA was first used, there were problems with the BCM4311 (14e4:4311). The problem was "fixed" by using the GFP_DMA flag in the allocation of coherent ring descriptor memory. The original problem is now believed to have been due to bugs in the 64-bit DMA implementation in the rest of the kernel, and that those bugs have been fixed. Accordingly, the requirement for the descriptors to be in the DMA zone is relaxed. Bounce buffers are left in the DMA zone. Signed-off-by:
Michael Buesch <m@bues.ch> Signed-off-by:
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Axel Lin authored
Since commit e0626e38 (spi: prefix modalias with "spi:"), the spi modalias is prefixed with "spi:". This patch adds "spi:" prefix for modalias of stlc45xx. Also move it to be group with other modalias. Signed-off-by:
Axel Lin <axel.lin@gmail.com> Acked-By:
Christian Lamparter <chunkeey@googlemail.com> Signed-off-by:
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Johannes Berg authored
In order to implement support for GO powersave on the P2P client side, the ucode needs to know what GO we're trying to authenticate/associate with, it needs to have a station entry and the BSSID in the RXON set. Implement the new mac80211 callbacks to give this data to the device. Since this is also useful for the device when a normal connection is established, also program it with the information in that case. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
This finalizes the move of the data path to the transport layer. Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
priv->mac80211_registered and priv->hw needed to move to shared. stop_queue API was added in order to allow the upper layer to stop the SW queues for regulatory purposes. Signed-off-by:
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Emmanuel Grumbach authored
This one is really transport related. ==== moves Stanislaw's code to BSD area ==== Signed-off-by:
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Emmanuel Grumbach authored
This one is really transport related. Signed-off-by:
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Emmanuel Grumbach authored
Remove a few dereferences of priv from the transport layer while at it. Signed-off-by:
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Emmanuel Grumbach authored
Since all the check_empty logic is now in the transport layer, the upper layer doesn't need to know anything about tx queues. The disable aggregation flow was the last to know what a tx queue is, so move it too. Signed-off-by:
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Emmanuel Grumbach authored
This logic is responsible to tell mac80211 when the HW queues are empty and the BA session can be started / torn down. Fix a bug on the way: When the the Tx BA session is stopped and the HW queues aren't empty, we stop the SW queue to drain the HW queue and then switch to the legacy HW queue. This is the IWL_EMPTYING_HW_QUEUE_DELBA state. While in this state, we never wake the SW queue, even when the HW queue is almost empty, since we need to drain it completely. Look at iwl_trans_pcie_reclaim regarding this. Once the HW queue is really empty, we must wake the SW queue in order to get traffic to the legacy queue. This step was missing leading to an odd situation were the traffic would just stall after we tore down a Tx BA session while the HW queue was not empty. Signed-off-by:
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Emmanuel Grumbach authored
The queues and all the related logic suits to the transport layer. Signed-off-by:
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Emmanuel Grumbach authored
This mapping is transport related. This allows us to remove the notion of tx queue from the tx path in the upper layer. iwl_wake_any_queue moved to transport layer since it needs to access these mappings. The TX API is nicer now: int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id); Signed-off-by:
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Emmanuel Grumbach authored
In a near future, the upper layer won't be aware of the tx queues. This allows to remove one place where the upper layer needed to provide the tx queue index to the transport layer. This also saves around 1.5MB. Signed-off-by:
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Emmanuel Grumbach authored
the mapping tx_queue -> fifo is really transport related. The upper layer should be involved in such things. Note that upon agg_disable, the queue is always mapped to fifo 0, but this doesn't matter since when the queue will be setup again for a new BA session, it will be configured to the good fifo anyway. Signed-off-by:
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Emmanuel Grumbach authored
This removes the need for iwl_tx_info. Each tx queue holds an array of skbs, the transport layer doesn't need to know anything about the context in which a specific skb is sent. Signed-off-by:
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Emmanuel Grumbach authored
When we remove the module, we free all the tx and rx resources. Before doing that, we'd better stop the tx / rx activity. Calling iwl_trans_stop_device in iwl_remove helps also to remove a few API functions: * rx_free: happens in iwl_trans_free * tx_free: happens in iwl_trans_free * disable_sync_irq: happens in iwl_trans_stop_device Signed-off-by:
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Emmanuel Grumbach authored
There are still quite a few, but much less. A few fields have been moved /copied to hw_params which sits in the shared area: * priv->cfg->base_params->num_of_ampdu_queues * priv->cfg->base_params->shadow_reg_enable * priv->cfg->sku * priv->ucode_owner Signed-off-by:
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Emmanuel Grumbach authored
The rate scaling and the transport need to access the data in iwl_tid_data, hence the move. Note that the only component in the upper layer that needs this data is the rate scaling. Refactoring the rate scaling may help to move iwl_tid_data from the shared area to the transport area. Signed-off-by:
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Wey-Yi Guy authored
One more sku for 2000 series with different Subsystem ID Signed-off-by:
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Emmanuel Grumbach authored
Move all the iwlXXX_abgn_cfg forward declaration to a separate file so that iwl-pci.c doesn't need to include iwl-agn.h that includes all iwl-dev.h This allows to provide real encapsulation. Dereferencing iwl_priv in the bus layer will now lead to a compilation error. Signed-off-by:
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Daniel Halperin authored
CC [M] drivers/net/wireless/iwlwifi/iwl-pci.o drivers/net/wireless/iwlwifi/iwl-pci.c:506: warning: iwl_pci_suspend defined but not used drivers/net/wireless/iwlwifi/iwl-pci.c:519: warning: iwl_pci_resume defined but not used These are only used if CONFIG_PM_SLEEP is enabled. CONFIG_PM depends (CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME), so it can be set without CONFIG_PM_SLEEP selected. Signed-off-by:
Daniel Halperin <dhalperi@cs.washington.edu> Signed-off-by:
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Emmanuel Grumbach authored
Which means that iwl-io.c doesn't need to include iwl-dev.h any more. Signed-off-by:
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