- Apr 23, 2009
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John W. Linville authored
Signed-off-by:John W. Linville <linville@tuxdriver.com>
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Johannes Berg authored
The maximum sleep interval, for powersave purposes, is determined by the DTIM period (it may not be larger) and the required networking latency (it must be small enough to fulfil those constraints). This makes mac80211 calculate the maximum sleep interval based on those constraints, and pass it to the driver. Then the driver should instruct the device to sleep at most that long. Note that the device is responsible for aligning the maximum sleep interval between DTIMs, we make sure it's not longer but it needs to make sure it's between them. Also, group some powersave documentation together and make it more explicit that we support managed mode only, and no IBSS powersaving (yet). Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Johannes Berg authored
Make the JOIN_IBSS command look at the beacon interval attribute to see if the user requested a specific beacon interval, if not default to 100 TU (wext too). Signed-off-by:
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Johannes Berg authored
Just setting IEEE80211_CONF_CHANGE_PS should be sufficient for changes in the power saving things. The driver already tells us whether it wants notification of dynps via the "have dynps support" hw flag. Signed-off-by:
Kalle Valo <kalle.valo@iki.fi> Signed-off-by:
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Johannes Berg authored
Stephen Rothwell reported these warnings from a 32-bit build: net/mac80211/mlme.c:1771: warning: left shift count >= width of type net/mac80211/mlme.c:1772: warning: left shift count >= width of type net/mac80211/mlme.c:1773: warning: left shift count >= width of type net/mac80211/mlme.c:1774: warning: left shift count >= width of type net/mac80211/mlme.c:1775: warning: left shift count >= width of type This shows a bug in my code -- BIT(X) uses just "1 << X" which means a 32-bit integer on 32-bit platforms, but the code here needs a u64 on all platforms. Fix this by using "1ULL << X" instead of BIT(X). Thanks Stephen! Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Jussi Kivilinna authored
Private structure is allocated by wiphy_new now, so use wiphy_free instead of kfree. Signed-off-by:
Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by:
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Jussi Kivilinna authored
rndis_wext_link_change() might be called from rndis_command() at initialization stage and priv->workqueue/priv->work have not been initialized yet. This causes invalid opcode at rndis_wext_bind on some brands of bcm4320. Fix by initializing workqueue/workers in rndis_wext_bind() before rndis_command is used. Signed-off-by:
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Johannes Berg authored
sparse complains, correctly, about these: drivers/net/wireless/rndis_wlan.c:418:21: warning: symbol 'rndis_config_ops' was not declared. Should it be static? drivers/net/wireless/rndis_wlan.c:423:6: warning: symbol 'rndis_wiphy_privid' was not declared. Should it be static? Fix that. Signed-off-by:
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Johannes Berg authored
With the RCU locking here we sleep while in an atomic context, since we can sleep just use mutex locking for the interface list instead of RCU. Sorry, seems I didn't get that in my UML test. Signed-off-by:
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Mohamed Abbas authored
Allow user to config the device all the time but only allow commiting these changes to card if the card is up and running. Signed-off-by:
Mohamed Abbas <mohamed.abbas@intel.com> Signed-off-by:
Reinette Chatre <reinette.chatre@intel.com> Signed-off-by:
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Abhijeet Kolekar authored
Patch removes the "manual radio disable" parameter as there is no usage scenario of disabling radio using this module parameter. User can use iwconfig's txpower to enable and disable radio. This module parameter also does not work as expected. During module load the status of radio is set, the radio is not actually disabled. Even so, the moment mac80211 requests the interface to be up the radio will be enabled again. Signed-off-by:
Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by:
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Mohamed Abbas authored
Function rs_stay_in_table was flushing the rate scale table way to early. time_after macro in expecting long value and was failing because we passing u32 value. Signed-off-by:
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Wey-Yi Guy authored
This patch clean up the code for NL80211_IFTYPE_MONITOR mode, priv->iw_mode is set in add_interface, but add_interface is never called for monitor mode. The only way mac80211 informs us about monitor mode is through configuring filter; since iw_mode will never set to NL80211_IFTYPE_MONITOR, modify and remove all the code refer to NL80211_IFTYPE_MONITOR and replace with iwl_is_monitor_mode() function call. Signed-off-by:
Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by:
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Abhijeet Kolekar authored
This patch calculates interrupt statistics for debugfs. Signed-off-by:
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Abhijeet Kolekar authored
Patch adds debugfs to 3945. Also fix debugfs registration in iwlagn to return error code if it fails. Signed-off-by:
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Johannes Berg authored
If passive scanning is requested we should not ask the microcode to do active scanning after detecting traffic on a channel -- that should only be used when an active scan is requested but some channels are marked passive. Signed-off-by:
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Johannes Berg authored
This modifies iwlwifi to * no longer build its own probe request, but use mac80211's * therefore, support arbitrary scan IEs (up to the max len) * support multiple scan SSIDs * support passive scanning Signed-off-by:
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Johannes Berg authored
This limit applies to current (APIv1 and APIv2) 3945 firmware only, not supported firmware of any of the other cards. Signed-off-by:
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Christian Lamparter authored
With this patch ar9170 is capable of receiving aggregated 802.11n frames and sniffing on most networks without having a "debug message overhead". (Includes phy initialization requested by Johannes Berg <johannes@sipsolutions.net> -- JWL) Signed-off-by:
Christian Lamparter <chunkeey@web.de> Signed-off-by:
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Johannes Berg authored
The TIM IE must not be shorter than 4 bytes, so verify that when parsing it and use the proper type. To ease that adjust struct ieee80211_tim_ie to have a virtual bitmap of size at least 1. Also check that the TIM IE is actually present before trying to parse it! Because other people may need the function, make it a static inline in ieee80211.h. (The original "mac80211: validate TIM IE length" was a minimal fix for 2.6.30. This purports to be the full, correct fix. -- JWL) Signed-off-by:
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Johannes Berg authored
The fact that these are exported is a technical detail of the conversion period -- we don't want anybody to start relying on these. Ultimately we want things to use cfg80211 only, and once everything that is in wext is converted to cfg80211 drivers will not need to touch wext _at all_. Signed-off-by:
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Johannes Berg authored
When we leave an IBSS, we should clear the SSID and not just the BSSID, but since WEXT allows configuring while the interface is down we must not clear it when leaving due to taking the iface down, so some complications are needed. Signed-off-by:
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Jouni Malinen authored
Add new nl80211 attributes that can be used with NL80211_CMD_SET_WIPHY and NL80211_CMD_GET_WIPHY to manage fragmentation/RTS threshold and retry limits. Since these values are stored in struct wiphy, remove the local copy from mac80211 where feasible (frag & rts threshold). The retry limits are currently needed in struct ieee80211_conf, but these could be eventually removed since the driver should have access to the values in struct wiphy. Signed-off-by:
Jouni Malinen <j@w1.fi> Signed-off-by:
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Johannes Berg authored
This patch adds support for configuring HT40 channels and receiving HT40 to ar9170. Receiving aggregation doesn't seem to work right now, so it's not enabled. Same goes for TX aggregation, but that probably needs even more work. With this, I can receive roughly 33 Mbits/sec. The HT capabilities are a little odd, I tried following otus here -- in particular having SGI_40 but not SGI_20 is a little weird but afaict that's what otus does. Signed-off-by:
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Johannes Berg authored
Supporting wireless extension nickname is pointless and no other modern driver supports this, so remove it. Signed-off-by:
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Johannes Berg authored
Trying to separate header files into net/wireless.h and net/cfg80211.h has been a source of confusion. Remove net/wireless.h (because there also is the linux/wireless.h) and subsume everything into net/cfg80211.h -- except the definitions for regulatory structures which get moved to a new header net/regulatory.h. The "new" net/cfg80211.h is now divided into sections. There are no real changes in this patch but code shuffling and some very minor documentation fixes. I have also, to make things reflect reality, put in a copyright line for Luis to net/regulatory.h since that is probably exclusively written by him but was formerly in a file that only had my copyright line. Signed-off-by:
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Johannes Berg authored
This converts mac80211 to the new cfg80211 IBSS API, the wext handling functions are called where appropriate. Signed-off-by:
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Johannes Berg authored
This adds IBSS API along with (preliminary) wext handlers. The wext handlers can only do IBSS so you need to call them from your own wext handlers if the mode is IBSS. The nl80211 API requires * an SSID * a channel (frequency) for the case that a new IBSS has to be created It optionally supports * a flag to fix the channel * a fixed BSSID The cfg80211 code also takes care to leave the IBSS before the netdev is set down. If wireless extensions are used, it also caches values when the interface is down and instructs the driver to join when the interface is set up. Signed-off-by:
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Johannes Berg authored
Since we have ->deauth and ->disassoc we can support the wext SIWMLME call directly without driver wext handlers. Signed-off-by:
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Johannes Berg authored
When listing all wireless netdevs in the system this is useful to print which wiphy they belong to. Just add the attribute, any program that doesn't care will just ignore it. Signed-off-by:
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Christian Lamparter authored
This patch sets IEEE80211_TX_CTL_CLEAR_PS_FILT for outgoing frames for a half-wake station. this is necessary if one wants to get ps-poll working properly with a p54 ap. Signed-off-by:
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Christian Lamparter authored
PS-Polled frames must be sent with OUT_NOCANCEL flag set, or the firmware will reject all of them, at the station is still blacklisted. Signed-off-by:
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Larry Finger authored
The following patch implements some control over the LED on RTL8187B and RTL8187L devices. Triggers are registered for TX and RX. Whenever the trigger event occurs, the LED is turned off for 1/20 second, then turned back on. Note: For those RTL8187X devices that are built into the computer and have a LED that is expected to be controlled with a radio switch, this patch will not operate that LED. That will take a separate patch to be prepared later. Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
Herton Ronaldo Krzesinski <herton@mandriva.com.br> Tested-by:
Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by:
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Jouni Malinen authored
We can allow scan requests in AP mode as long as the interface has not yet been configured to send out Beacon frames (or if beaconing has been disabled prior to the scan request). This makes it easier to scan for neighboring BSSes during AP initialization and makes it possible to run a scan without setting the interface down, if needed. Without this change, the only available option would be to set the interface down, move into station mode, and set the interface up, prior to requesting the scan. Signed-off-by:
Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by:
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Johannes Berg authored
Document what mac80211 will do in the future to help save power. We're not quite there yet, but a plan helps. Also, while at it, fix the docs wrt. multicast traffic. Signed-off-by:
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Johannes Berg authored
Enable PS by default (depending on Kconfig) -- rely on drivers to control the level using pm_qos. Due to the previous patch we turn off PS when necessary due to latency requirements. This has a Kconfig symbol so people can, if they really want, configure the default in their kernels. We may want to keep it at "default y" only in wireless-testing for a while. Signed-off-by:
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Johannes Berg authored
Regardless of whether the hardware implements beacon filtering, there's no need to process all beacons in software all the time throughout the stack (mac80211 does a lot, then cfg80211, then in the future possibly userspace). This patch implements the "best possible" beacon filtering in mac80211. "Best possible" means that it can look for changes in all requested information elements, and distinguish vendor IEs by their OUI. In the future, we will add nl80211 API for userspace to request information elements and vendor IE OUIs to watch -- drivers can then implement the best they can do while software implements it fully. It is unclear whether or not this actually saves CPU time, but the data is all in the cache already so it should be fairly cheap. The additional _testing_, however, has great benefit; Without this, and on hardware that doesn't implement beacon filtering, wrong assumptions about, for example, scan result updates could quickly creep into code. Signed-off-by:
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Johannes Berg authored
When an application asks for a latency lower than the beacon interval there's nothing we can do -- we need to stay awake and not have the AP buffer frames for us. Add code to automatically calculate this constraint in mac80211 so drivers need not concern themselves with it. Signed-off-by:
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Johannes Berg authored
When you have multiple virtual interfaces the current implementation requires setting them up properly from userspace, which is undesirable when we want to default to power save mode. Keep track of powersave requested from userspace per managed mode interface, and only enable powersave globally when exactly one managed mode interface is active and has powersave turned on. Second, only start the dynPS timer when PS is turned on, and properly turn it off when PS is turned off. Third, fix the scan_sdata abuse in the dynps code. Finally, also reorder the code and refactor the code that enables PS or the dynps timer instead of having it copied in two places. Signed-off-by:
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Marek Vasut authored
A detection function was added for identifying CF8381. Signed-off-by:
Marek Vasut <marek.vasut@gmail.com> Acked-by:
Dan Williams <dcbw@redhat.com> Signed-off-by:
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