- Jun 08, 2011
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Yogesh Ashok Powar authored
All MSDUs, except the last one in an AMSDU, should end up at 4 bytes boundary. There is need to check if enough skb_tailroom space exists before padding the skb. Also re-arranging code for better readablity. Signed-off-by:
Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Yogesh Ashok Powar authored
The check of skb list empty before calling skb_peek and skb_dequeue is redundant. These functions returns NULL if the list is empty. Signed-off-by:
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Yogesh Ashok Powar authored
Instead of counting the number of packets in txq for particular RA list before AMSDU creation, maintain a counter which will keep track of the same. This will reduce some MIPS while generating AMSDU traffic as we only have to check the counter instead of traversing through skb list. Signed-off-by:
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Greg Dietsche authored
the code always returns ret regardless, so if(ret) check is unecessary. Signed-off-by:
Greg Dietsche <Gregory.Dietsche@cuw.edu> Signed-off-by:
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Stanislaw Gruszka authored
Use less indentions and remove uneeded irq-save flags. Signed-off-by:
Stanislaw Gruszka <sgruszka@redhat.com> Acked-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
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Shahar Levi authored
Adding new event that close RX BA session in case of periodic BT activity limiting WLAN activity. Signed-off-by:
Shahar Levi <shahar_levi@ti.com> Signed-off-by:
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Shahar Levi authored
Some devices support BT/WLAN co-existence algorigthms. In order not to harm the system performance and user experience, the device requests not to allow any RX BA session and tear down existing RX BA sessions based on system constraints such as periodic BT activity that needs to limit WLAN activity (eg.SCO or A2DP). In such cases, the intention is to limit the duration of the RX PPDU and therefore prevent the peer device to use A-MPDU aggregation. Adding ieee80211_stop_rx_ba_session() callback that can be used by the driver to stop existing BA sessions. Signed-off-by:
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- Jun 07, 2011
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Stanislaw Gruszka authored
Setting tx power can be deferred during scan or changing channel. If after that correct tx power settings will not be sent to device, we can observe transmission problems and timeouts. Force to send tx power settings also after partial rxon change, to assure device always be configured with up-to-date settings. Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=36492 Cc: stable@kernel.org # 2.6.39+ Signed-off-by:
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Stanislaw Gruszka authored
Avoid queue and run autowakeup_work when device is not present anymore. That prevent rmmod and device remove crash introduced by: commit 1c0bcf89 Author: Ivo van Doorn <ivdoorn@gmail.com> Date: Sat Apr 30 17:18:18 2011 +0200 rt2x00: Add autowake support for USB hardware Signed-off-by:
Stanislaw Gruszka <stf_xl@wp.pl> Acked-by:
Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by:
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Stanislaw Gruszka authored
This patch fixes 802.11n stability and performance regression we have since 2.6.35. It boost performance on my 5GHz N-only network from about 5MB/s to 8MB/s. Similar percentage boost can be observed on 2.4 GHz. These are test results of 5x downloading of approximately 700MB iso image: vanilla: 5.27 5.22 4.94 4.47 5.31 ; avr 5.0420 std 0.35110 patched: 8.07 7.95 8.06 7.99 7.96 ; avr 8.0060 std 0.055946 This was achieved with NetworkManager configured to do not perform periodical scans, by configuring constant BSSID. With periodical scans, after some time, performance downgrade to unpatched driver level, like in example below: patched: 7.40 7.61 4.28 4.37 4.80 avr 5.6920 std 1.6683 However patch still make better here, since similar test on unpatched driver make link disconnects with below messages after some time: wlan1: authenticate with 00:23:69:35:d1:3f (try 1) wlan1: authenticate with 00:23:69:35:d1:3f (try 2) wlan1: authenticate with 00:23:69:35:d1:3f (try 3) wlan1: authentication with 00:23:69:35:d1:3f timed out On 2.6.35 kernel patch helps against connection hangs with messages: iwlagn 0000:20:00.0: queue 10 stuck 3 time. Fw reload. iwlagn 0000:20:00.0: On demand firmware reload iwlagn 0000:20:00.0: Stopping AGG while state not ON or starting Cc: stable@kernel.org # 2.6.35+ Signed-off-by:
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John W. Linville authored
This reverts commit aac6af55. Conflicts: net/mac80211/key.c That commit has a race that causes a warning, as documented in the thread here: http://marc.info/?l=linux-wireless&m=130717684914101&w=2 Signed-off-by:
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- Jun 04, 2011
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Wey-Yi Guy authored
No need to go though multiple levels of indirect call to send RXON command. Call it directly Signed-off-by:
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Wey-Yi Guy authored
After driver split, no need to use function "ops" for post_scan. Signed-off-by:
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Wey-Yi Guy authored
Both tx power and power save are being done after scan complete, move into post_scan function Signed-off-by:
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Wey-Yi Guy authored
For some timing reason, 1000 device having problem to kick-in to aggregation without sending rxon assoc command. This is a W/A until find the real reason Signed-off-by:
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Wey-Yi Guy authored
When change smps mode due to bt coex, save it Signed-off-by:
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Greg Dietsche authored
lq_sta has other null checks in this function. assuming they are correct, this additional null check should be added too. Incorporating suggestion from Gustavo Padovan. Signed-off-by:
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Greg Dietsche authored
propogate the return value from iwl4965_get_tx_atten_grp instead of implicitly returning -EINVAL in the error case. Signed-off-by:
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Greg Dietsche authored
Cleanup the code to return -EINVAL instead of -1 Signed-off-by:
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Greg Dietsche authored
the code always returns ret regardless, so if(ret) check is unecessary. Signed-off-by:
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Greg Dietsche authored
return; at the end of the function is unecessary. Signed-off-by:
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Rafał Miłecki authored
Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Signed-off-by:
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Rafał Miłecki authored
It does nothing useful yet, so it is matched as BROKEN. For now this is just an option for b43, in future we may want to make b43 support SSB or BCMA (note: or, not xor). Signed-off-by:
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Rafał Miłecki authored
In case of BCMA cards SPROM is located in the ChipCommon core, it is not mapped as separated host window. So far we have met only SPROMs rev 8. SPROM layout seems to be the same as for SSB buses, so we decided to share SPROM struct and some defines. For now we extract MAC address only, this can be improved of course. Signed-off-by:
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Rafał Miłecki authored
Luckily the only flag we use when calling core reset is GMODE one. Thanks to that we can just switch to single bool and make function calls bus generic. Tested on my BCM4312 (LP-PHY) and early tested with BCM43224. Signed-off-by:
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Felix Fietkau authored
Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Arend van Spriel authored
The brcm80211 driver in the staging tree has a cordic function to determine cosine and sine for a given angle. Feedback received from John Linville suggested that these kind of functions should be made available to others as a library function in the kernel tree. The b43 driver also has a cordic angle calculation implemented. Cc: linux-kernel@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Dan Carpenter <error27@gmail.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Larry Finger <Larry.Finger@lwfinger.net> Reviewed-by:
Roland Vossen <rvossen@broadcom.com> Reviewed-by:
Henry Ptasinski <henryp@broadcom.com> Reviewed-by:
Franky (Zhenhui) Lin <frankyl@broadcom.com> Signed-off-by:
Arend van Spriel <arend@broadcom.com> Signed-off-by:
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Arend van Spriel authored
The brcm80211 driver in staging tree uses a crc8 function. Based on feedback from John Linville to move this to lib directory, the linux source has been searched. Although there is currently only one other kernel driver using this algorithm (ie. drivers/ssb) we are providing this as a library function for others to use. Cc: linux-kernel@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: Dan Carpenter <error27@gmail.com> Cc: George Spelvin <linux@horizon.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by:
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Mike McCormack authored
Should pass along packet if there's no CRC and no hardware error. Signed-off-by:
Mike McCormack <mikem@ring3k.org> Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Mike McCormack authored
Make sure all updates to a descriptor are flushed to memory before assigning ownship to hardware. Signed-off-by:
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Mike McCormack authored
Ownership of an rx buffer should only be given to the hardware after all other changes are written, otherwise there's a potential race. Signed-off-by:
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Mike McCormack authored
Now power state transitions are not called from an interrupt context, there's no need to block interrupts. This code appears to block interrupts for too long, causing my trackpad to lose sync occasionally. Signed-off-by:
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Mike McCormack authored
This removes the need to use IRQ safe spinlocks in many places. Signed-off-by:
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Mike McCormack authored
_rtl_pci_rx_interrupt uses rtlpci->rx_ring[rx_queue_idx].idx a few times, so store it in a separate variable. Signed-off-by:
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Mike McCormack authored
set_rfpowerstate_inprogress is only set and never read so remove it. Signed-off-by:
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Mike McCormack authored
This make sure any IRQ handlers running on other CPUs complete. Signed-off-by:
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Daniel Drake authored
Commit 06e8935f adds an IRQ handling optimization for single-function SDIO cards like this one, but at the same time exposes a small hardware bug. During hardware init, an interrupt is generated with (apparently) no source. Previously, mmc threw this interrupt away, but now (due to the optimization), the mmc layer passes this onto libertas, before it is ready (and before it has enabled interrupts), causing a crash. Work around this hardware bug by registering the IRQ handler later and making it capable of handling interrupts with no cause. The change that makes the IRQ handler registration happen later actually eliminates the spurious interrupt as well. Signed-off-by:
Daniel Drake <dsd@laptop.org> Signed-off-by:
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Thadeu Lima de Souza Cascardo authored
This partially reverts 1c5cae81 , because the netdev name is copied into sdata->name, which is used for debugging messages, for example. Otherwise, we get messages like this: wlan%d: authenticated Signed-off-by:
Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Jiri Pirko <jpirko@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "John W. Linville" <linville@tuxdriver.com> Signed-off-by:
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Stanislaw Gruszka authored
We use priv->mutex to avoid race conditions between iwl_chswitch_done() and iwlagn_mac_channel_switch(), when marking channel switch in progress. But iwl_chswitch_done() can be called in atomic context from iwl_rx_csa() or with mutex already taken from iwlagn_commit_rxon(). These bugs were introduced by: commit 79d07325 Author: Wey-Yi Guy <wey-yi.w.guy@intel.com> Date: Thu May 6 08:54:11 2010 -0700 iwlwifi: support channel switch offload in driver To fix remove mutex from iwl_chswitch_done() and use atomic bitops for marking channel switch pending. Also remove iwl2030_hw_channel_switch() since 2000 series adapters are 2.4GHz only devices. Cc: stable@kernel.org # 2.6.36+ Signed-off-by:
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