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2016-12-15mac80211: minstrel: make prob_ewma u16 instead of u32Felix Fietkau1-1/+1
Saves about 1.2 KiB memory per station Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: minstrel: store probability variance instead of standard deviationFelix Fietkau4-19/+30
This avoids the costly int_sqrt calls in the statistics update and moves it to the debugfs code instead. This also fixes an overflow in the previous standard deviation calculation. Signed-off-by: Thomas Huehn <thomas.huehn@evernet-eg.de> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: minstrel: reduce MINSTREL_SCALEFelix Fietkau1-1/+1
The loss of a bit of extra precision does not hurt the calculation, 12 bits is still enough to calculate probabilities well. Reducing the scale makes it easier to avoid overflows Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: minstrel: remove cur_prob from debugfsFelix Fietkau4-26/+18
This field is redundant, because it is simply last success divided by last attempt count. Removing it from the rate stats struct saves about 1.2 KiB per HT station. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: check for MCS in ieee80211_duration before fetching chanctxFelix Fietkau1-4/+4
Makes the code a bit more efficient Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: minstrel_ht: make att_hist and succ_hist u32 instead of u64Felix Fietkau1-1/+1
They are only used for debugging purposes and take a very long time to overflow. Visibly reduces the size of the per-sta rate control data. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: minstrel_ht: move short preamble check out of get_rateFelix Fietkau1-17/+5
Test short preamble support in minstrel_ht_update_caps instead of looking at the per-packet flag. Makes the code more efficient. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: minstrel_ht: move supported bitrate mask out of group dataFelix Fietkau3-22/+22
Improves dcache footprint by ensuring that fewer cache lines need to be touched. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: only alloc mem if a station doesn't exist yetKoen Vandeputte1-7/+7
This speeds up the function in case a station already exists by avoiding calling an expensive kzalloc just to free it again after the next check. Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-15mac80211: fix legacy and invalid rx-rate reportBen Greear1-6/+8
This fixes obtaining the rate info via sta_set_sinfo when the rx rate is invalid (for instance, on IBSS interface that has received no frames from one of its peers). Also initialize rinfo->flags for legacy rates, to not rely on the whole sinfo being initialized to zero. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Use appropriate name for functions and messagesMasashi Honma5-13/+13
These functions drifts TSF timers, not TBTT. Signed-off-by: Masashi Honma <masashi.honma@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove invalid flag operations in mesh TSF synchronizationMasashi Honma3-15/+0
mesh_sync_offset_adjust_tbtt() implements Extensible synchronization framework ([1] 13.13.2 Extensible synchronization framework). It shall not operate the flag "TBTT Adjusting subfield" ([1] 8.4.2.100.8 Mesh Capability), since it is used only for MBCA ([1] 13.13.4 Mesh beacon collision avoidance, see 13.13.4.4.3 TBTT scanning and adjustment procedures for detail). So this patch remove the flag operations. [1] IEEE Std 802.11 2012 Signed-off-by: Masashi Honma <masashi.honma@gmail.com> [remove adjusting_tbtt entirely, since it's now unused] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Ensure enough headroom when forwarding mesh pktCedric Izoard1-1/+1
When a buffer is duplicated during MESH packet forwarding, this patch ensures that the new buffer has enough headroom. Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Show pending txqlen in debugfs.Ben Greear1-0/+27
Could be useful for debugging memory consumption issues, and perhaps power-save as well. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Suppress NEW_PEER_CANDIDATE event if no roomMasashi Honma1-6/+8
Previously, kernel sends NEW_PEER_CANDIDATE event to user land even if the found peer does not have any room to accept other peer. This causes continuous connection trials. Signed-off-by: Masashi Honma <masashi.honma@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: multicast to unicast conversionMichael Braun4-1/+137
Add the ability for an AP (and associated VLANs) to perform multicast-to-unicast conversion for ARP, IPv4 and IPv6 frames (possibly within 802.1Q). If enabled, such frames are to be sent to each station separately, with the DA replaced by their own MAC address rather than the group address. Note that this may break certain expectations of the receiver, such as the ability to drop unicast IP packets received within multicast L2 frames, or the ability to not send ICMP destination unreachable messages for packets received in L2 multicast (which is required, but the receiver can't tell the difference if this new option is enabled.) This also doesn't implement the 802.11 DMS (directed multicast service). Signed-off-by: Michael Braun <michael-dev@fami-braun.de> [use true/false, rename label to the correct "multicast", use __be16 for ethertype and network order for constants] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'beaconint_us' variableKirtika Ruchandani1-4/+0
Commit 4a733ef1bea7 (mac80211: remove PM-QoS listener) removed all use of 'beaconint_us' from ieee80211_recalc_ps() but left the variable intact. Compiling with W=1 gives the following warning, fix it. net/mac80211/mlme.c: In function ‘ieee80211_recalc_ps’: net/mac80211/mlme.c:1481:7: warning: variable ‘beaconint_us’ set but not used [-Wunused-but-set-variable] iee80211_tu_to_usec has no side-effects and is safe to remove. Fixes: 4a733ef1bea7 ("mac80211: remove PM-QoS listener") Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kirtika Ruchandani <kirtika@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'sband' and 'local' variablesKirtika Ruchandani1-4/+0
Commit b1bce14a7954 (mac80211: update opmode when adding new station) refactored ieee80211_vht_handle_opmode into __ieee80211_vht_handle_opmode and ieee80211_vht_handle_opmode leaving a set but unused variable (sband) in the former. Compiling with W=1 gives the following warning, fix it. net/mac80211/vht.c: In function ‘__ieee80211_vht_handle_opmode’: net/mac80211/vht.c:424:35: warning: variable ‘sband’ set but not used [-Wunused-but-set-variable] Remove 'struct ieee80211_local* local' as well, it was only used to set sband. This is a harmless warning, and is only being fixed to reduce the noise with W=1 in the kernel. Fixes: b1bce14a7954 ("mac80211: update opmode when adding new station") Cc: Marek Kwaczynski <marek.kwaczynski@tieto.com> Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kirtika Ruchandani <kirtika@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'len' variableKirtika Ruchandani1-5/+3
Commit 633e27132625 (mac80211: split sched scan IEs) introduced the len variable to keep track of the return value of ieee80211_build_preq_ies() but did not use it. Compiling with W=1 gives the following warning, fix it. net/mac80211/scan.c: In function ‘__ieee80211_request_sched_scan_start’: net/mac80211/scan.c:1123:9: warning: variable ‘len’ set but not used [-Wunused-but-set-variable] This is a harmless warning and is only being fixed to reduce the noise with W=1 in the kernel. Fixes: 633e27132625 ("mac80211: split sched scan IEs") Cc: David Spinadel <david.spinadel@intel.com> Cc: Alexander Bondar <alexander.bondar@intel.com> Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kirtika Ruchandani <kirtika@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'i' variableKirtika Ruchandani1-3/+1
Commit 5bcae31d9 (mac80211: implement multi-vif in-place reservations) introduced ieee80211_vif_use_reserved_switch() with a counter variable 'i' that is set but not used. Compiling with W=1 gives the following warning, fix it. net/mac80211/chan.c: In function ‘ieee80211_vif_use_reserved_switch’: net/mac80211/chan.c:1273:6: warning: variable ‘i’ set but not used [-Wunused-but-set-variable] This is a harmless warning, and is only being fixed to reduce the noise obtained with W=1 in the kernel. Fixes: 5bcae31d9 ("mac80211: implement multi-vif in-place reservations") Cc: Michal Kazior <michal.kazior@tieto.com> Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kirtika Ruchandani <kirtika@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'struct rate_control_ref' variableKirtika Ruchandani1-4/+0
Commit 3b17fbf87d5d introduced sta_get_expected_throughput() leaving variable 'struct rate_control_ref* ref' set but unused. Compiling with W=1 gives the following warning, fix it. net/mac80211/sta_info.c: In function ‘sta_set_sinfo’: net/mac80211/sta_info.c:2052:27: warning: variable ‘ref’ set but not used [-Wunused-but-set-variable] Fixes: 3b17fbf87d5d ("mac80211: mesh: Add support for HW RC implementation") Cc: Johannes Berg <johannes.berg@intel.com> Cc: Maxim Altshul <maxim.altshul@ti.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'rates_idx' variableKirtika Ruchandani1-2/+1
Commit f027c2aca0cf introduced 'rates_idx' in ieee80211_tx_status_noskb but did not use it. Compiling with W=1 gives the following warning, fix it. mac80211/status.c: In function ‘ieee80211_tx_status_noskb’: mac80211/status.c:636:6: warning: variable ‘rates_idx’ set but not used [-Wunused-but-set-variable] This is a harmless warning, and is only being fixed to reduce the noise generated with W=1. Fixes: f027c2aca0cf ("mac80211: add ieee80211_tx_status_noskb") Cc: Johannes Berg <johannes.berg@intel.com> Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: Remove unused 'struct ieee80211_rx_status' ptrKirtika Ruchandani1-4/+0
Commit 554891e63a29 introduced 'struct ieee80211_rx_status' in ieee80211_rx_h_defragment but did not use it. Compiling with W=1 gives the following warning, fix it. net/mac80211/rx.c: In function ‘ieee80211_rx_h_defragment’: net/mac80211/rx.c:1911:30: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] Fixes: 554891e63a29 ("mac80211: move packet flags into packet") Cc: Johannes Berg <johannes.berg@intel.com> Cc: John W. Linville <linville@tuxdriver.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-13mac80211: don't call drv_set_default_unicast_key() for VLANsJohannes Berg1-1/+2
Since drivers know nothing about AP_VLAN interfaces, trying to call drv_set_default_unicast_key() just results in a warning and no call to the driver. Avoid the warning by not calling the driver for this on AP_VLAN interfaces. This means that drivers that somehow need this call for AP mode will fail to work properly in the presence of VLAN interfaces, but the current drivers don't seem to use it, and mac80211 will select and indicate the key - so drivers should be OK now. Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-09Merge tag 'mac80211-next-for-davem-2016-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextDavid S. Miller1-9/+12
Johannes Berg says: ==================== Three fixes: * fix a logic bug introduced by a previous cleanup * fix nl80211 attribute confusing (trying to use a single attribute for two purposes) * fix a long-standing BSS leak that happens when an association attempt is abandoned ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09cfg80211/mac80211: fix BSS leaks when abandoning assoc attemptsJohannes Berg1-9/+12
When mac80211 abandons an association attempt, it may free all the data structures, but inform cfg80211 and userspace about it only by sending the deauth frame it received, in which case cfg80211 has no link to the BSS struct that was used and will not cfg80211_unhold_bss() it. Fix this by providing a way to inform cfg80211 of this with the BSS entry passed, so that it can clean up properly, and use this ability in the appropriate places in mac80211. This isn't ideal: some code is more or less duplicated and tracing is missing. However, it's a fairly small change and it's thus easier to backport - cleanups can come later. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-11-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-5/+27
All conflicts were simple overlapping changes except perhaps for the Thunder driver. That driver has a change_mtu method explicitly for sending a message to the hardware. If that fails it returns an error. Normally a driver doesn't need an ndo_change_mtu method becuase those are usually just range changes, which are now handled generically. But since this extra operation is needed in the Thunder driver, it has to stay. However, if the message send fails we have to restore the original MTU before the change because the entire call chain expects that if an error is thrown by ndo_change_mtu then the MTU did not change. Therefore code is added to nicvf_change_mtu to remember the original MTU, and to restore it upon nicvf_update_hw_max_frs() failue. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15mac80211: fix A-MSDU aggregation with fast-xmit + txqFelix Fietkau1-1/+5
A-MSDU aggregation alters the QoS header after a frame has been enqueued, so it needs to be ready before enqueue and not overwritten again afterwards Fixes: bb42f2d13ffc ("mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue") Signed-off-by: Felix Fietkau <nbd@nbd.name> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-11-15mac80211: remove bogus skb vif assignmentFelix Fietkau1-3/+0
The call to ieee80211_txq_enqueue overwrites the vif pointer with the codel enqueue time, so setting it just before that call makes no sense. Signed-off-by: Felix Fietkau <nbd@nbd.name> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-11-15mac80211: update A-MPDU flag on tx dequeueFelix Fietkau1-0/+5
The sequence number counter is used to derive the starting sequence number. Since that counter is updated on tx dequeue, the A-MPDU flag needs to be up to date at the tme of dequeue as well. This patch prevents sending more A-MPDU frames after the session has been terminated and also ensures that aggregation starts right after the session has been established Fixes: bb42f2d13ffc ("mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue") Signed-off-by: Felix Fietkau <nbd@nbd.name> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-11-15Revert "mac80211: allow using AP_LINK_PS with mac80211-generated TIM IE"Felix Fietkau1-1/+1
This reverts commit c68df2e7be0c1238ea3c281fd744a204ef3b15a0. __sta_info_recalc_tim turns into a no-op if local->ops->set_tim is not set. This prevents the beacon TIM bit from being set for all drivers that do not implement this op (almost all of them), thus thoroughly essential AP mode powersave functionality. Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Fixes: c68df2e7be0c ("mac80211: allow using AP_LINK_PS with mac80211-generated TIM IE") Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-11-15mac80211: Ignore VHT IE from peer with wrong rx_mcs_mapFilip Matusiak1-0/+16
This is a workaround for VHT-enabled STAs which break the spec and have the VHT-MCS Rx map filled in with value 3 for all eight spacial streams, an example is AR9462 in AP mode. As per spec, in section 22.1.1 Introduction to the VHT PHY A VHT STA shall support at least single spactial stream VHT-MCSs 0 to 7 (transmit and receive) in all supported channel widths. Some devices in STA mode will get firmware assert when trying to associate, examples are QCA9377 & QCA6174. Packet example of broken VHT Cap IE of AR9462: Tag: VHT Capabilities (IEEE Std 802.11ac/D3.1) Tag Number: VHT Capabilities (IEEE Std 802.11ac/D3.1) (191) Tag length: 12 VHT Capabilities Info: 0x00000000 VHT Supported MCS Set Rx MCS Map: 0xffff .... .... .... ..11 = Rx 1 SS: Not Supported (0x0003) .... .... .... 11.. = Rx 2 SS: Not Supported (0x0003) .... .... ..11 .... = Rx 3 SS: Not Supported (0x0003) .... .... 11.. .... = Rx 4 SS: Not Supported (0x0003) .... ..11 .... .... = Rx 5 SS: Not Supported (0x0003) .... 11.. .... .... = Rx 6 SS: Not Supported (0x0003) ..11 .... .... .... = Rx 7 SS: Not Supported (0x0003) 11.. .... .... .... = Rx 8 SS: Not Supported (0x0003) ...0 0000 0000 0000 = Rx Highest Long GI Data Rate (in Mb/s, 0 = subfield not in use): 0x0000 Tx MCS Map: 0xffff ...0 0000 0000 0000 = Tx Highest Long GI Data Rate (in Mb/s, 0 = subfield not in use): 0x0000 Signed-off-by: Filip Matusiak <filip.matusiak@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller9-73/+135
Mostly simple overlapping changes. For example, David Ahern's adjacency list revamp in 'net-next' conflicted with an adjacency list traversal bug fix in 'net'. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29Merge tag 'mac80211-next-for-davem-2016-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextDavid S. Miller21-114/+610
Johannes Berg says: ==================== Among various cleanups and improvements, we have the following: * client FILS authentication support in mac80211 (Jouni) * AP/VLAN multicast improvements (Michael Braun) * config/advertising support for differing beacon intervals on multiple virtual interfaces (Purushottam Kushwaha, myself) * deprecate the old WDS mode for cfg80211-based drivers, the mode is hardly usable since it doesn't support any "modern" features like WPA encryption (2003), HT (2009) or VHT (2014), I'm not even sure WEP (introduced in 1997) could be done. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-28mac80211: fils_aead: fix encrypt error handlingArnd Bergmann1-4/+2
gcc -Wmaybe-uninitialized reports a bug in aes_siv_encryp: net/mac80211/fils_aead.c: In function ‘aes_siv_encrypt.constprop’: net/mac80211/fils_aead.c:84:26: error: ‘tfm2’ may be used uninitialized in this function [-Werror=maybe-uninitialized] At the time that the memory allocation fails, 'tfm2' has not been allocated, so we should not attempt to free it later, and we can simply return an error. Fixes: 39404feee691 ("mac80211: FILS AEAD protection for station mode association frames") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27mac80211: Claim Fast Initial Link Setup (FILS) STA supportJouni Malinen1-0/+1
With the previous commits, initial FILS authentication/association support is now functional in mac80211-based drivers for station role (and FILS AP case is covered by user space in hostapd withotu requiring mac80211 changes). Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27mac80211: FILS AEAD protection for station mode association framesJouni Malinen7-4/+403
This adds support for encrypting (Re)Association Request frame and decryption (Re)Association Response frame when using FILS in station mode. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27mac80211: Add FILS auth alg mappingJouni Malinen1-0/+12
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27mac80211: Allow AUTH_DATA to be used for FILSJouni Malinen1-3/+6
The special SAE case should be limited only for SAE since the more generic AUTH_DATA can now be used with other authentication algorithms as well. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27cfg80211: Rename SAE_DATA to more generic AUTH_DATAJouni Malinen1-6/+6
This adds defines and nl80211 extensions to allow FILS Authentication to be implemented similarly to SAE. FILS does not need the special rules for the Authentication transaction number and Status code fields, but it does need to add non-IE fields. The previously used NL80211_ATTR_SAE_DATA can be reused for this to avoid having to duplicate that implementation. Rename that attribute to more generic NL80211_ATTR_AUTH_DATA (with backwards compatibility define for NL80211_SAE_DATA). Also document the special rules related to the Authentication transaction number and Status code fiels. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-27mac80211: validate new interface's beacon intervalsJohannes Berg2-1/+12
As part of interface combination checking, verify any new interface's beacon intervals. In fact, just always add the beacon interval since that's harmless. With this patch, mac80211 is prepared for drivers that set the min_beacon_int_gcd parameter in interface combinations. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-20net: use core MTU range checking in wireless driversJarod Wilson1-11/+4
- set max_mtu in wil6210 driver - set max_mtu in atmel driver - set min/max_mtu in cisco airo driver, remove airo_change_mtu - set min/max_mtu in ipw2100/ipw2200 drivers, remove libipw_change_mtu - set min/max_mtu in p80211netdev, remove wlan_change_mtu - set min/max_mtu in net/mac80211/iface.c and remove ieee80211_change_mtu - set min/max_mtu in wimax/i2400m and remove i2400m_change_mtu - set min/max_mtu in intersil/hostap and remove prism2_change_mtu - set min/max_mtu in intersil/orinoco - set min/max_mtu in tty/n_gsm and remove gsm_change_mtu CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org CC: Maya Erez <qca_merez@qca.qualcomm.com> CC: Simon Kelley <simon@thekelleys.org.uk> CC: Stanislav Yakovlev <stas.yakovlev@gmail.com> CC: Johannes Berg <johannes@sipsolutions.net> CC: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-19mac80211: uapsd_queues is in QoS IE orderEmmanuel Grumbach5-7/+20
The uapsd_queue field is in QoS IE order and not in IEEE80211_AC_*'s order. This means that mac80211 would get confused between BK and BE which is certainly not such a big deal but needs to be fixed. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-19mac80211: add a HW flag for supporting HW TX fragmentationSara Sharon4-3/+8
Currently mac80211 determines whether HW does fragmentation by checking whether the set_frag_threshold callback is set or not. However, some drivers may want to set the HW fragmentation capability depending on HW generation. Allow this by checking a HW flag instead of checking the callback. Signed-off-by: Sara Sharon <sara.sharon@intel.com> [added the flag to ath10k and wlcore] Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-19mac80211: allow the driver not to pass the tid to ieee80211_sta_uapsd_triggerEmmanuel Grumbach1-2/+3
iwlwifi will check internally that the tid maps to an AC that is trigger enabled, but can't know what tid exactly. Allow the driver to pass a generic tid and make mac80211 assume that a trigger frame was received. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-19mac80211: improve RX aggregation data in debugfsJohannes Berg1-2/+7
When the driver sets the SUPPORTS_REORDERING_BUFFER hardware flag, the debugfs data for RX aggregation sessions won't even indicate that a session is open. Since the previous fix to store the dialog token separately, we can indicate that it's open and add the token so that there's at least some data (ssn is not available.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-19mac80211: fix tid_agg_rx NULL dereferenceJohannes Berg3-9/+5
On drivers setting the SUPPORTS_REORDERING_BUFFER hardware flag, we crash when the peer sends an AddBA request while we already have a session open on the seame TID; this is because on those drivers, the tid_agg_rx is left NULL even though the session is valid, and the agg_session_valid bit is set. To fix this, store the dialog tokens outside the tid_agg_rx to be able to compare them to the received AddBA request. Fixes: f89e07d4cf26 ("mac80211: agg-rx: refuse ADDBA Request with timeout update") Reported-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-17mac80211: move struct aead_req off the stackArd Biesheuvel7-62/+93
Some crypto implementations (such as the generic CCM wrapper in crypto/) use scatterlists to map fields of private data in their struct aead_req. This means these data structures cannot live in the vmalloc area, which means that they cannot live on the stack (with CONFIG_VMAP_STACK.) This currently occurs only with the generic software implementation, but the private data and usage is implementation specific, so move the whole data structures off the stack into heap by allocating every time we need to use them. In addition, take care not to put any of our own stack allocations into scatterlists. This involves reserving some extra room when allocating the aead_request structures, and referring to those allocations in the scatter- lists (while copying the data from the stack before the crypto operation) Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-17mac80211: fix A-MSDU outer SA/DAMichael Braun2-1/+24
According to IEEE 802.11-2012 section 8.3.2 table 8-19, the outer SA/DA of A-MSDU frames need to be changed depending on FromDS/ToDS values. Signed-off-by: Michael Braun <michael-dev@fami-braun.de> [use ether_addr_copy and add alignment annotations] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-17mac80211: avoid extra memcpy in A-MSDU head creationMichael Braun1-10/+13
Signed-off-by: Michael Braun <michael-dev@fami-braun.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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