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* mac80211: call ieee80211_mgd_stop() on interface stopEliad Peller2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ieee80211_mgd_teardown() is called on netdev removal, which occurs after the vif was already removed from the low-level driver, resulting in the following warning: [ 4809.014734] ------------[ cut here ]------------ [ 4809.019861] WARNING: at net/mac80211/driver-ops.h:12 ieee80211_bss_info_change_notify+0x200/0x2c8 [mac80211]() [ 4809.030388] wlan0: Failed check-sdata-in-driver check, flags: 0x4 [ 4809.036862] Modules linked in: wlcore_sdio(-) wl12xx wlcore mac80211 cfg80211 [last unloaded: cfg80211] [ 4809.046849] [<c001bd4c>] (unwind_backtrace+0x0/0x12c) [ 4809.055937] [<c047cf1c>] (dump_stack+0x20/0x24) [ 4809.065385] [<c003e334>] (warn_slowpath_common+0x5c/0x74) [ 4809.075589] [<c003e408>] (warn_slowpath_fmt+0x40/0x48) [ 4809.088291] [<bf033630>] (ieee80211_bss_info_change_notify+0x200/0x2c8 [mac80211]) [ 4809.102844] [<bf067f84>] (ieee80211_destroy_auth_data+0x80/0xa4 [mac80211]) [ 4809.116276] [<bf068004>] (ieee80211_mgd_teardown+0x5c/0x74 [mac80211]) [ 4809.129331] [<bf043f18>] (ieee80211_teardown_sdata+0xb0/0xd8 [mac80211]) [ 4809.141595] [<c03b5e58>] (rollback_registered_many+0x228/0x2f0) [ 4809.153056] [<c03b5f48>] (unregister_netdevice_many+0x28/0x50) [ 4809.165696] [<bf041ea8>] (ieee80211_remove_interfaces+0xb4/0xdc [mac80211]) [ 4809.179151] [<bf032174>] (ieee80211_unregister_hw+0x50/0xf0 [mac80211]) [ 4809.191043] [<bf0bebb4>] (wlcore_remove+0x5c/0x7c [wlcore]) [ 4809.201491] [<c02c6918>] (platform_drv_remove+0x24/0x28) [ 4809.212029] [<c02c4d50>] (__device_release_driver+0x8c/0xcc) [ 4809.222738] [<c02c4e84>] (device_release_driver+0x30/0x3c) [ 4809.233099] [<c02c4258>] (bus_remove_device+0x10c/0x128) [ 4809.242620] [<c02c26f8>] (device_del+0x11c/0x17c) [ 4809.252150] [<c02c6de0>] (platform_device_del+0x28/0x68) [ 4809.263051] [<bf0df49c>] (wl1271_remove+0x3c/0x50 [wlcore_sdio]) [ 4809.273590] [<c03806b0>] (sdio_bus_remove+0x48/0xf8) [ 4809.283754] [<c02c4d50>] (__device_release_driver+0x8c/0xcc) [ 4809.293729] [<c02c4e2c>] (driver_detach+0x9c/0xc4) [ 4809.303163] [<c02c3d7c>] (bus_remove_driver+0xc4/0xf4) [ 4809.312973] [<c02c5a98>] (driver_unregister+0x70/0x7c) [ 4809.323220] [<c03809c4>] (sdio_unregister_driver+0x24/0x2c) [ 4809.334213] [<bf0df458>] (wl1271_exit+0x14/0x1c [wlcore_sdio]) [ 4809.344930] [<c009b1a4>] (sys_delete_module+0x228/0x2a8) [ 4809.354734] ---[ end trace 515290ccf5feb522 ]--- Rename ieee80211_mgd_teardown() to ieee80211_mgd_stop(), and call it on ieee80211_do_stop(). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: combine QoS with other BSS changesJohannes Berg2012-03-05
| | | | | | | | | | | | When associating and particularly when disassociating there's no need to notify the driver about changes with multiple calls to bss_info_changed, we should combine the QoS enabling/disabling into the same call as otherwise the driver could get confused about QoS suddenly getting disabled while connected. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵John W. Linville2012-02-29
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
| * mac80211: Fix a warning on changing to monitor mode from STAMohammed Shafi Shajakhan2012-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nothing needs to be done for monitor/AP_VLAN mode on calling ieee80211_bss_info_change_notify -> drv_bss_info_changed with the change flag 'BSS_CHANGED_IDLE'. 'wl1271' seems to use BSS_CHANGED_IDLE only for STA and IBSS mode. further the non-idle state of the monitor mode is taken care by the 'count' variable which counts non-idle interfaces. ieee80211_idle_off(local, "in use") will be called. this fixes the following WARNING when we have initially STA mode (network manager running) and not associated, and change it to monitor mode with network manager disabled and bringing up the monitor mode. this changes the idle state from 'true' (STA unassociated) to 'false' (MONITOR mode) exposed by the commit 405385f8ce7a2ed8f82e216d88b5282142e1288b "mac80211: set bss_conf.idle when vif is connected" WARNING: net/mac80211/main.c:212 ieee80211_bss_info_change_notify+0x1cf/0x330 [mac80211]() Hardware name: 64756D6 Pid: 3835, comm: ifconfig Tainted: G O 3.3.0-rc3-wl #9 Call Trace: [<c0133b02>] warn_slowpath_common+0x72/0xa0 [<fc8e8c3f>] ? ieee80211_bss_info_change_notify+0x1cf/0x330 [mac80211] [<fc8e8c3f>] ? ieee80211_bss_info_change_notify+0x1cf/0x330 [mac80211] [<c0133b52>] warn_slowpath_null+0x22/0x30 [<fc8e8c3f>] ieee80211_bss_info_change_notify+0x1cf/0x330 [mac80211] [<fc8f9de3>] __ieee80211_recalc_idle+0x113/0x430 [mac80211] [<fc8fabc6>] ieee80211_do_open+0x156/0x7e0 [mac80211] [<fc8f8a25>] ? ieee80211_check_concurrent_iface+0x25/0x180 [mac80211] [<c015dd9f>] ? raw_notifier_call_chain+0x1f/0x30 [<fc8fb290>] ieee80211_open+0x40/0x80 [mac80211] [<c05894f6>] __dev_open+0x96/0xe0 [<c068fba5>] ? _raw_spin_unlock_bh+0x35/0x40 [<c05881d9>] __dev_change_flags+0x109/0x170 [<c0589423>] dev_change_flags+0x23/0x60 [<c05f3770>] devinet_ioctl+0x6a0/0x770 ieee80211 phy0: device no longer idle - in use Cc: Eliad Peller <eliad@wizery.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: fix auth/assoc data & timer leakJohannes Berg2012-02-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When removing an interface while it is in the process of authenticating or associating, we leak the auth_data or assoc_data, and leave the timer pending. The timer then crashes the system when it fires as its data is gone. Fix this by explicitly deleting all the data when the interface is removed. This uncovered another bug -- this problem should have been detected by the sta_info_flush() warning but that function doesn't ever return non-zero, I'll fix that in a separate patch. Reported-by: Hieu Nguyen <hieux.c.nguyen@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: support hw scan while idleEliad Peller2012-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, mac80211 goes to idle-off before starting a scan. However, some devices that implement hw scan might not need going idle-off in order to perform a hw scan, and thus saving some energy and simplifying their state machine. (Note that this is also the case for sched scan - it currently doesn't make mac80211 go idle-off) Add a new flag to indicate support for hw scan while idle. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: redesign auth/assocJohannes Berg2012-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the second part of the auth/assoc redesign, the mac80211 part. This moves the auth/assoc code out of the work abstraction and into the MLME, so that we don't flip channels all the time etc. The only downside is that when we are associated, we need to drop the association in order to create a connection to another AP, but for most drivers this is actually desirable and the ability to do was never used by any applications. If we want to implement resource reservation with FT-OTA, we'd probably best do it with explicit R-O-C in wpa_s. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2012-02-01
|\| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
| * mac80211: set bss_conf.idle when vif is connectedEliad Peller2012-01-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __ieee80211_recalc_idle() iterates through the vifs, sets bss_conf.idle = true if they are disconnected, and increases "count" if they are not (which later gets evaluated in order to determine whether the device is idle). However, the loop doesn't set bss_conf.idle = false (along with increasing "count"), causing the device idle state and the vif idle state to get out of sync in some cases. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: add support for mcs masksSimon Wunderlich2012-01-30
| | | | | | | | | | | | | | | | | | | | | | * Handle MCS masks set by the user. * Match rates provided by the rate control algorithm to the mask set, also in HT mode, and switch back to legacy mode if necessary. * add debugfs files to observate the rate selection Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: station state transition error handlingJohannes Berg2012-01-30
|/ | | | | | | | | | | | | | | | | | | | | | | In the future, when we start notifying drivers, state transitions could potentially fail. To make it easier to distinguish between programming bugs and driver failures: * rename sta_info_move_state() to sta_info_pre_move_state() which can only be called before the station is inserted (and check this with a new station flag). * rename sta_info_move_state_checked() to just plain sta_info_move_state(), as it will be the regular function that can fail for more than just one reason (bad transition or an error from the driver) This makes the programming model easier -- one of the functions can only be called before insertion and can't fail, the other can fail. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: refactor station state transitionsJohannes Berg2011-12-15
| | | | | | | | | | | | | | | | | | | | | | | | Station entries can have various states, the most important ones being auth, assoc and authorized. This patch prepares us for telling the driver about these states, we don't want to confuse drivers with strange transitions, so with this we enforce that they move in the right order between them (back and forth); some transitions might happen before the driver even knows about the station, but at least runtime transitions will be ordered correctly. As a consequence, IBSS and MESH stations will now have the ASSOC flag set (so they can transition to AUTHORIZED), and we can get rid of a special case in TX processing. When freeing a station, unwind the state so that other parts of the code (or drivers later) can rely on the transitions. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix forwarded mesh frame queue mappingThomas Pedersen2011-11-28
| | | | | | | | | | | | | | | We can't rely on ieee80211_select_queue() to do its job at this point since the skb->protocol is not yet known. Instead, factor out and reuse the queue mapping logic for injected frames. Also, to mitigate congestion, forwarded frames should be dropped if the outgoing queue was stopped. This was not correctly implemented as we were not checking the right queue. Furthermore, we were dropping frames that had arrived to their destination if that queue was stopped. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Add NoAck per tid supportSimon Wunderlich2011-11-28
| | | | | | | | This patch contains the processing changes in mac80211. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use kfree_skb() instead of kfree()Dan Carpenter2011-11-17
| | | | | | | | | | sk_buff structs should be freed using kfree_skb(). This was introduced recently in 029458212 "mac80211: Save probe response data for bss". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Save probe response data for bssArik Nemtsov2011-11-11
| | | | | | | | | | | | Allow setting a probe response template for an interface operating in AP mode. Low level drivers are notified about changes in the probe response template and are able to retrieve a copy of the current probe response. This data can, for example, be uploaded to hardware as a template. Signed-off-by: Guy Eilam <guy@wizery.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: set carrier_on for ibss vifs only while joinedEliad Peller2011-11-11
| | | | | | | | mac80211 should set carrier_on for ibss vifs only while they are joined (similar to sta vifs) Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add support for control port protocol in AP modeJohannes Berg2011-11-09
| | | | | | | | | This will allow us to support dynamic WEP with 802.1X properly in mac80211 by not encrypting outgoing and accepting unencrypted incoming frames. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: verify virtual interfaces in driver APIJohannes Berg2011-11-09
| | | | | | | | | | The driver is never informed about monitor or AP_VLAN interfaces, so whenever we pass those to it later this is a bug. Verify we don't as there are some cases where this could happen. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: call set_wmm_default only for valid vifsEliad Peller2011-11-08
| | | | | | | | | | | | | mac80211 calls ieee80211_set_wmm_default (which in turn calls drv_conf_tx()) for every new interface, including "internal" ones (e.g. monitor interface, which the low-level driver doesn't know about). Limit this call only to valid interfaces. Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵John W. Linville2011-10-11
|\ | | | | | | | | | | | | git://git.infradead.org/users/linville/wireless-next into for-davem Conflicts: Documentation/feature-removal-schedule.txt
| * mac80211: optimise station flagsJohannes Berg2011-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The flaglock in struct sta_info has long been something that I wanted to get rid of, this finally does the conversion to atomic bitops. The conversion itself is straight-forward in most places, a few things needed to change a bit since we can no longer use multiple bits at the same time. On x86-64, this is a fairly significant code size reduction: text data bss dec hex 427861 23648 1008 452517 6e7a5 before 425383 23648 976 450007 6ddd7 after Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-09-30
|\| | | | | | | | | | | | | | | git://git.infradead.org/users/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/wl12xx/main.c
| * mac80211: fix AP/VLAN PS buffer raceJohannes Berg2011-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | When an AP interface is removed without the AP/VLAN interfaces having been removed before already, the AP-VLAN interface might still have sleeping stations and buffer multicast frames which will happen on the AP interface. Thus, we need to remove AP/VLAN interfaces before purging buffered broadcast frames. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ssh://infradead/~/public_git/wireless-next into ↵John W. Linville2011-09-19
|\| | | | | | | for-davem
| * mac80211: Remove mesh paths when an interface is removedJavier Cardona2011-09-13
| | | | | | | | | | | | | | | | | | | | | | When an interface is removed, the mesh paths associated with it should also be removed. This fixes a bug we observed when reloading a device driver module without reloading mac80211s. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | net: remove use of ndo_set_multicast_list in driversJiri Pirko2011-08-17
| | | | | | | | | | | | | | replace it by ndo_set_rx_mode Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTERStephen Hemminger2011-08-02
|/ | | | | | | | | | | | | | | | | | | | When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Audit drivers to identify those needing IFF_TX_SKB_SHARING clearedNeil Horman2011-07-28
| | | | | | | | | | | | | | | | | | | | | | | After the last patch, We are left in a state in which only drivers calling ether_setup have IFF_TX_SKB_SHARING set (we assume that drivers touching real hardware call ether_setup for their net_devices and don't hold any state in their skbs. There are a handful of drivers that violate this assumption of course, and need to be fixed up. This patch identifies those drivers, and marks them as not being able to support the safe transmission of skbs by clearning the IFF_TX_SKB_SHARING flag in priv_flags Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Karsten Keil <isdn@linux-pingi.de> CC: "David S. Miller" <davem@davemloft.net> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Patrick McHardy <kaber@trash.net> CC: Krzysztof Halasa <khc@pm.waw.pl> CC: "John W. Linville" <linville@tuxdriver.com> CC: Greg Kroah-Hartman <gregkh@suse.de> CC: Marcel Holtmann <marcel@holtmann.org> CC: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac80211: remove a redundant checkMohammed Shafi Shajakhan2011-07-13
| | | | | | | is_valid_ether_addr itself checks for is_zero_ether_addr Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: allocate only one RX queueJohannes Berg2011-07-11
| | | | | | | | | We don't have multiple RX queues, so there's no use in allocating multiple, use alloc_netdev_mqs() to allocate multiple TX but only one RX queue. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: call dev_alloc_name before copying name to sdataThadeu Lima de Souza Cascardo2011-06-03
| | | | | | | | | | | | | | | This partially reverts 1c5cae815d19ffe02bdfda1260949ef2b1806171, 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: John W. Linville <linville@tuxdriver.com>
* Merge ↵John W. Linville2011-05-24
|\ | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
| * mac80211: abort scan_work immediately when the device goes downRajkumar Manoharan2011-05-16
| | | | | | | | | | | | | | | | | | | | | | As long as no delay is required b/w channel change, scan work is proceeding without scheduling a new work. In such case, we can not abort scan work when the card was unplugged. This patch completes the scanning immediately whenever the device goes down. Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-05-16
|\| | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-tx.c net/mac80211/sta_info.h
| * mac80211: sparse RCU annotationsJohannes Berg2011-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds sparse RCU annotations to most of mac80211, only the mesh code remains to be done. Due the the previous patches, the annotations are pretty simple. The only thing that this actually changes is removing the RCU usage of key->sta in debugfs since this pointer isn't actually an RCU-managed pointer (it only has a single assignment done before the key even goes live). As that is otherwise harmless, I decided to make it part of this patch. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | net: call dev_alloc_name from register_netdeviceJiri Pirko2011-05-05
|/ | | | | | | | | | | | | | Force dev_alloc_name() to be called from register_netdevice() by dev_get_valid_name(). That allows to remove multiple explicit dev_alloc_name() calls. The possibility to call dev_alloc_name in advance remains. This also fixes veth creation regresion caused by 84c49d8c3e4abefb0a41a77b25aa37ebe8d6b743 Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2011-03-04
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x.h
| * net: Fix more stale on-stack list_head objects.Eric W. Biederman2011-02-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Eric W. Biederman <ebiederm@xmission.com> In the beginning with batching unreg_list was a list that was used only once in the lifetime of a network device (I think). Now we have calls using the unreg_list that can happen multiple times in the life of a network device like dev_deactivate and dev_close that are also using the unreg_list. In addition in unregister_netdevice_queue we also do a list_move because for devices like veth pairs it is possible that unregister_netdevice_queue will be called multiple times. So I think the change below to fix dev_deactivate which Eric D. missed will fix this problem. Now to go test that. Signed-off-by: David S. Miller <davem@davemloft.net>
* | mac80211: Recalculate channel-type on iface removal.Ben Greear2011-02-03
|/ | | | | | | | | | When a vif goes away, it could cause the super-chan to be recalculated differently, so do that calculation on iface removal. Signed-off-by: Ben Greear <greearb@candelatech.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: implement hardware offload for remain-on-channelJohannes Berg2011-01-05
| | | | | | | | | This allows drivers to support remain-on-channel offload if they implement smarter timing or need to use a device implementation like iwlwifi. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: selective throughput LED trigger activeJohannes Berg2010-12-22
| | | | | | | | | | | The throughput LED trigger was always active when the radio was enabled. In most cases that's likely the desired behaviour, but iwlwifi requires it to be only active when one of the virtual interfaces is actually "connected" in some way. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add throughput based LED blink triggerJohannes Berg2010-12-22
| | | | | | | | | | | | | | | iwlwifi and other drivers like to blink their LED based on throughput. Implement this generically in mac80211, based on a throughput table the driver specifies. That way, drivers can set the blink frequencies depending on their desired behaviour and max throughput. All the drivers need to do is provide an LED class device, best with blink hardware offload. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/mac80211: add mesh join/leave commandsJohannes Berg2010-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | Instead of tying mesh activity to interface up, add join and leave commands for mesh. Since we must be backward compatible, let cfg80211 handle joining a mesh if a mesh ID was pre-configured when the device goes up. Note that this therefore must modify mac80211 as well since mac80211 needs to lose the logic to start the mesh on interface up. We now allow querying mesh parameters before the mesh is connected, which simply returns defaults. Setting them (internally renamed to "update") is only allowed while connected. Specify them with the new mesh join command instead where needed. In mac80211, beaconing must now also follow the mesh enabled/not enabled state, which is done by testing the mesh ID. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move mesh filter adjustingJohannes Berg2010-12-06
| | | | | | | | | | Logically, the filter adjusting belongs with starting/stopping mesh, not interface up/down, so move it there. Tested-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: unset SDATA_STATE_OFFCHANNEL when cancelling a scanBrian Cavagnolo2010-11-08
| | | | | | | | | | | | | | | | | For client STA interfaces, ieee80211_do_stop unsets the relevant interface's SDATA_STATE_RUNNING state bit prior to cancelling an interrupted scan. When ieee80211_offchannel_return is invoked as part of cancelling the scan, it doesn't bother unsetting the SDATA_STATE_OFFCHANNEL bit because it sees that the interface is down. Normally this doesn't matter because when the client STA interface is brought back up, it will probably issue a scan. But in some cases (e.g., the user changes the interface type while it is down), the SDATA_STATE_OFFCHANNEL bit will remain set. This prevents the interface queues from being started. So we cancel the scan before unsetting the SDATA_STATE_RUNNING bit. Signed-off-by: Brian Cavagnolo <brian@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add probe request filter flagJohannes Berg2010-10-13
| | | | | | | | | | Using the frame registration notification, we can see when probe requests are requested and notify the low-level driver via filtering. The flag is also set in AP and IBSS modes. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: avoid transmitting delBA to old APJohannes Berg2010-10-06
| | | | | | | | | | | | | | | | | When roaming while we have active BA session, we can end up transmitting delBA frames to the old AP while we're already on the new AP's channel, which can cause warnings. Simply avoid sending those frames, but still tear down the internal session state, since they are not really necessary anyway as we will implicitly disassociate when sending the association to the new AP. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix for WDS interfacesBill Jordan2010-10-05
| | | | | | | | | Initialize the rate table for WDS interfaces, and add cases to allow WDS packets to pass the xmit and receive tests. Signed-off-by: Bill Jordan <bjordan@rajant.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix rx monitor filter refcountersChristian Lamparter2010-10-05
| | | | | | | | | | | | This patch fixes an refcounting bug. Previously it was possible to corrupt the per-device recv. filter and monitor management counters when: iw dev wlanX set monitor [new flags] was issued on an active monitor interface. Acked-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-14 04:00:35 -0500