- 06 May, 2009 40 commits
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Luis R. Rodriguez authored
On x86 this allows us to do the following small savings: shave off 23 % off of the module's data, and shave off 6 % off of the module's text. We save 456 bytes, for those counting. $ size ath9k.ko text data bss dec hex filename 250794 3628 1600 256022 3e816 ath9k.ko $ size ath9k-old.ko text data bss dec hex filename 239114 15308 1600 256022 3e816 ath9k-old.ko $ du -b ath9k.ko 4034244 ath9k.ko $ du -b ath9k-old.ko 4033788 ath9k-old.ko Signed-off-by:
Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Max Filippov authored
Currently queues are stopped when their length reaches their length limit, but are restarted only when the size of freed range of packet buffer is not less than the size of the largest possible packet. This causes permanent queue stop on radio visibility loss in the middle of ping series: there is plenty of room in the packet buffer, but it is never freed more than 3 (size of 'best effort' queue) * 288 (ping packet plus headers) bytes at once. Signed-off-by:
Max Filippov <jcmvbkbc@gmail.com> Signed-off-by:
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Jouni Malinen authored
We are currently processing block ack reordering as a separate task before all other RX handlers. In theory, this is wrong since this step should be done only after duplicate removal (see Figure 6-1 in IEEE 802.11n). However, moving this needs some work and the current situation is not too bad. Add a comment here so that this small detail does not get forgotten and who knows, maybe someone has some extra time to take a look at cleaning this up. Signed-off-by:
Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by:
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Jouni Malinen authored
This patch allows skbs to be released from the RX reorder buffer in case they have been there for an unexpectedly long time without us having received the missing frames before them. Previously, these frames were only released when the reorder window moved and that could take very long time unless new frames were received constantly (e.g., TCP connections could be killed more or less indefinitely). This situation should not happen very frequently, but it looks like there are some scenarious that trigger it for some reason. As such, this should be considered mostly a workaround to speed up recovery from unexpected siutation that could result in connections hanging for long periods of time. The changes here will only check for timeout situation when adding new RX frames to the reorder buffer. It does not handle all possible cases, but seems to help for most cases that could result from common network usage (e.g., TCP retrying at least couple of times). For more completely coverage, a timer could be used to periodically check whether there are any frames remaining in the reorder buffer if no new frames are received. Signed-off-by:
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Jouni Malinen authored
No need to duplicate the same code in two places (and that would be three after the followup patch). Signed-off-by:
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Ivo van Doorn authored
rt2x00_check_rev() was too specific for rt2500usb and rt73usb, by adding the mask argument (instead of hardcoding it into the function itself) we can use the function in rt2800usb as well. v2: Fix revision mask for rt2800usb Signed-off-by:
Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by:
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Luis R. Rodriguez authored
net/mac80211/mlme.c:2079:28: warning: symbol 'ssid_len' shadows an earlier one net/mac80211/mlme.c:2022:12: originally declared here ssid_len is already being declared and checked above so there is no need for it again. Signed-off-by:
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John W. Linville authored
Ooops... Signed-off-by: -
Alexander Beregalov authored
Fix this build error when CONFIG_PM is not set: drivers/net/wireless/ath/ar9170/usb.c: In function 'ar9170_usb_probe': drivers/net/wireless/ath/ar9170/usb.c:692: error: 'struct usb_device' has no member named 'reset_resume' Signed-off-by:
Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by:
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Johannes Berg authored
It's not very helpful to see, in iwconfig, the current frequency the card is tuned to if that frequency is currently somewhere across the board because we're scanning. Since we keep track of the frequency the user wants, display that instead. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Luis R. Rodriguez authored
Fixes sparse complaint: CHECK net/wireless/nl80211.c net/wireless/nl80211.c:3694:6: warning: symbol 'nl80211_send_mlme_timeout' was not declared. Should it be static? Signed-off-by:
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Hauke Mehrtens authored
/drivers/net/wireless/p54/p54usb.c: In function 'p54u_probe': /drivers/net/wireless/p54/p54usb.c:923: error: 'struct usb_device' has no member named 'reset_resume' In the struct usb_device the reset_resume attribute is only available when CONFIG_PM is defined. Signed-off-by:
Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by:
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Greg Kroah-Hartman authored
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Cc: John W. Linville <linville@tuxdriver.com> Cc: linux-wireless@vger.kernel.org Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by:
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Bob Copeland authored
Fixes warnings: drivers/net/wireless/wl12xx/main.c:87: warning: int format, different type arg (arg 2) drivers/net/wireless/wl12xx/main.c: In function `wl12xx_fetch_nvs': drivers/net/wireless/wl12xx/main.c:125: warning: int format, different type arg (arg 2) drivers/net/wireless/wl12xx/wl1251.c: In function 'wl1251_upload_firmware': drivers/net/wireless/wl12xx/wl1251.c:94: warning: int format, different type arg (arg 2) drivers/net/wireless/wl12xx/wl1251.c:141: warning: int format, different type arg (arg 2) Signed-off-by:Bob Copeland <me@bobcopeland.com> Acked-by:
Kalle Valo <kalle.valo@nokia.com> Signed-off-by:
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Tomas Winkler authored
This patch replaces test_and_set_bit by set_bit since the bit is not tested anyway Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
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Wey-Yi Guy authored
This patch change the "is_fat" checking in rate scale to use iwl_is_fat_tx_allowed() to match the sta and RX_ON command setting. Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Tested-by:
Conrad Kostecki <ConiKost@gmx.de> Signed-off-by:
Reinette Chatre <reinette.chatre@intel.com> Signed-off-by:
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Reinette Chatre authored
Some issues in PS prevent us from supporting it reliably. When 4965 goes to sleep it stores some data in host DRAM, reads it back when device wakes up. In 4965 there is a problem that the data is not correct when ucode starts using it upon wakeup. For all iwlagn devices there is a problem where command is sent when PS is enabled. At the moment there is a locking problem with priv->lock not being held and thus not requesting nic access correctly. We disable PS until these issues have been resolved. Signed-off-by:
Mohamed Abbas <mohamed.abbas@intel.com> Signed-off-by:
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Abhijeet Kolekar authored
Patch seperates rx_used and rx_free into two different atomic contexts. We can now avoid using GFP_ATOMIC for skb allocation and use GFP_KERNEL. Signed-off-by:
Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by:
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Paride Legovini authored
Add LED support on the IBM ThinkPad 11a/b/g Wireless LAN Mini Express Adapter (AR5BXB6), found on the IBM/Lenovo Thinkpad X60/T60/Z60 series. Signed-off-by:
Paride Legovini <legovini@spiro.fisica.unipd.it> Signed-off-by:
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Bob Copeland authored
Update ath5k to use the ctl settings for tx power based on current regulatory domain. Signed-off-by:
Nick Kossifidis <mickflemm@gmail.com> Signed-off-by:
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Nick Kossifidis authored
* Add spur filter support for RF5413 and later chips Signed-off-by:
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Nick Kossifidis authored
* Add code to support the various antenna scenarios supported by hw * For now hardcode the default scenario (single or dual omnis with tx/rx diversity working and tx antenna handled by session -hw keeps track on which antenna it got ack from each ap/station and maps each ap/station to one of the antennas-). Signed-off-by:
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Jiri Slaby authored
After some debuging we were hitting the following bugs so far... * Due to huge channel list hostapd couldn't get infos from the driver and couldn't set the channel. If we manualy set the channel after hostapd starts (by setting channel to 0 -auto), beacons are sent but they wont show up on scan because they are malformed (they have channel = 0 because hostapd doesn't update the channel info -this is probably a hostapd bug so i'm CCing Jouni) and they get dropped. Bob fixed this by only allowing standard channels to be registered so now hostapd works as expected. * Docs (and HAL source) say that we must write 0 on timer0 when operating on AP mode to start TSF increment but this seems to mess with DBA in many cases and beacon queue never gets started. We fixed that on the previous patch. We have some more things to deal with... * For some reason (hw bug or something else) after restarting hostapd a few times, beacon inteval seems to change from 100ms to a sec (we get one beacon per sec). * We need to set sleep timers on STA mode and enable power saving + support PCF. ...but i think it's time we enable AP support "officialy" so that we can get more feedback from users. I ran ath5k with the mentioned patches + hostapd 0.6.8 and AP mode worked fine (it had some less throughput on my tests than IBSS but it worked). Signed-off-by:
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Nick Kossifidis authored
* Write next beacon timer even on AP mode since without this we get no beacons + ath9k does it too. Docs say that we must write 0 on this register on AP mode to start TSF increment, we do both to be on the safe side. * Fix num_tx_pending function, we never read the register :P that's why we got all those "beacon queue 7 didn't stop messages". * Put full prioriy on beacon queue, lock all queues with lower priority using the arblock and also bypass any arblock by seting the arblock ignore flag. * For the CAB queue (do we need this thing ?, it seems crap) since it's supposed to fire up after each beacon (we don't use it on driver part, ath9k/MadWiFi does), don't make it DBA gated but instead make it fire after each beacon by using the beacon sent gated flag. * Increase bmiss threshold to 10, that's what we used on MadWiFi for a long time. Also when we have pending frames on the beacon queue (we got a beacon that didn't make it on the air) it's more likely that the beacon queue never started, probably due to faulty DBA setting, so change that "beacon queue didn't stop" message. Tested this with AP mode and IBSS mode and seems to work fine ;-) Signed-off-by:
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Nick Kossifidis authored
* Put remaining EEPROM information on ee struct and remove is_hb63 function. Now we also have rfkill stuff available. Signed-off-by:
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Nick Kossifidis authored
* Read Spur channel information from EEPROM and use default channels for RF5413 compatible chips that don't have this info on EEPROM. Signed-off-by:
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Nick Kossifidis authored
* Now that we have regulatory control enable the driver to set txpower on hw * Also use txpower table offset so that we can match power range set by user/driver with indices on power table. Tested 2 different cards (a CM9 and an RF5112-based ubnt) and got the same output using a remote machine to measure per-packet rssi (conected the cards using attenuators). I also switched between various tx power levels and i saw an equal power change on the remote machine (so txpower changes as expected) and verified that we have the same output on each rate. Signed-off-by:
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Ivo van Doorn authored
Ralink released a new rt2870 driver, these are the obvious differences I could find. It doesn't same to make my device work better, but neither does it seem to regress... Signed-off-by:
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Ivo van Doorn authored
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Kalle Valo authored
wl12xx is a driver for TI wl1251 802.11 chipset designed for embedded devices, supporting both SDIO and SPI busses. Currently the driver supports only SPI. Adding support 1253 (the 5 GHz version) should be relatively easy. More information here: http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?contentId=4711&navigationId=12494&templateId=6123 (Collapsed original sequence of pre-merge patches into single commit for initial merge. -- JWL) Signed-off-by:
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Ivo van Doorn authored
Add support for the rt2800usb chipset. Current problems: * Cannot scan 11n AP's * No TX during first minute after association * Broken Hardware encryption Includes various patches from Mattias, Felix, Xose and Axel. Signed-off-by:
Mattias Nissler <mattias.nissler@gmx.de> Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
Xose Vazquez Perez <xose.vazquez@gmail.com> Signed-off-by:
Axel Kollhofer <rain_maker@root-forum.org> Signed-off-by:
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Alban Browaeys authored
Extra parenthesis are not needed in these 2 cases, all other defines in rt2x00 are done without parenthesis so just fixup these 2 cases. Signed-off-by:
Alban Browaeys <prahal@yahoo.com> Signed-off-by:
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Gabor Juhos authored
The spin_lock handling uses lots of instructions on some archs. With this patch the size of the ath9k module will be significantly smaller. Signed-off-by:
Gabor Juhos <juhosg@openwrt.org> Acked-by:
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Johannes Berg authored
When we aren't doing anything in mac80211, we can turn off much of the hardware, depending on the driver/hw. Not doing anything, aka being idle, means: * no monitor interfaces * no AP/mesh/wds interfaces * any station interfaces are in DISABLED state * any IBSS interfaces aren't trying to be in a network * we aren't trying to scan By creating a new function that verifies these conditions and calling it at strategic points where the states of those conditions change, we can easily make mac80211 tell the driver when we are idle to save power. Additionally, this fixes a small quirk where a recalculated powersave state is passed to the driver even if the hardware is about to stopped completely. This patch intentionally doesn't touch radio_enabled because that is currently implemented to be a soft rfkill which is inappropriate here when we need to be able to wake up with low latency. One thing I'm not entirely sure about is this: phy0: device no longer idle - in use wlan0: direct probe to AP 00:11:24:91:07:4d try 1 wlan0 direct probe responded wlan0: authenticate with AP 00:11:24:91:07:4d wlan0: authenticated > phy0: device now idle > phy0: device no longer idle - in use wlan0: associate with AP 00:11:24:91:07:4d wlan0: RX AssocResp from 00:11:24:91:07:4d (capab=0x401 status=0 aid=1) wlan0: associated Is it appropriate to go into idle state for a short time when we have just authenticated, but not associated yet? This happens only with the userspace SME, because we cannot really know how long it will wait before asking us to associate. Would going idle after a short timeout be more appropriate? We may need to revisit this, depending on what happens. Signed-off-by:
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Gábor Stefanik authored
To deter future rate scaling algorithm writers from requesting NO_ACK packets to be retried, throw a WARN_ON_ONCE if the algorithm hands us a try count over 1 for NO_ACK packet. Signed-off-by:
Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by:
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Gábor Stefanik authored
Check for IEEE80211_TX_CTL_NO_ACK instead of is_multicast_ether_addr when determining whether to use lowest rate without retries. Signed-off-by:
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Gábor Stefanik authored
Make iwl-{3945|agn}-rs check for IEEE80211_TX_CTL_NO_ACK instead of is_multicast_ether_addr when determining whether to use the lowest rate, and set the retry count to 0 (total try count = 1) if IEEE80211_TX_CTL_NO_ACK is set. Signed-off-by: -
Gábor Stefanik authored
Make PID check for IEEE80211_TX_CTL_NO_ACK instead of is_multicast_ether_addr when determining whether to use the lowest rate, and set the retry count to 0 (total try count = 1) if IEEE80211_TX_CTL_NO_ACK is set. Signed-off-by:
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Gábor Stefanik authored
Make the retry count zero (total try count = 1) for frames with IEEE80211_TX_CTL_NO_ACK set. Also remove the check for is_multicast_ether_addr in use_low_rate, which is redundant because all multicasts have IEEE80211_TX_CTL_NO_ACK set. Signed-off-by:
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Bob Copeland authored
Ben Greear points out that the "too many interrupts" message will never print in the intended case since the interrupt counter will be -1 after the loop. Change it to pre-decrement so it will be 0 on the thousandth iteration. Cc: Ben Greear <greearb@candelatech.com> Signed-off-by:
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