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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2016-05-041-2/+2
|\ | | | | | | | | | | | | | | | | | | Conflicts: net/ipv4/ip_gre.c Minor conflicts between tunnel bug fixes in net and ipv6 tunnel cleanups in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
| * mac80211: fix statistics leak if dev_alloc_name() failsJohannes Berg2016-04-271-2/+2
| | | | | | | | | | | | | | | | | | | | In the case that dev_alloc_name() fails, e.g. because the name was given by the user and already exists, we need to clean up properly and free the per-CPU statistics. Fix that. Cc: stable@vger.kernel.org Fixes: 5a490510ba5f ("mac80211: use per-CPU TX/RX statistics") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: remove enum ieee80211_bandJohannes Berg2016-04-121-1/+1
| | | | | | | | | | | | | | | | | | This enum is already perfectly aliased to enum nl80211_band, and the only reason for it is that we get IEEE80211_NUM_BANDS out of it. There's no really good reason to not declare the number of bands in nl80211 though, so do that and remove the cfg80211 one. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: mesh: fix cleanup for mesh pathtableBob Copeland2016-04-051-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mesh path table needs to be around for the entire time the interface is in mesh mode, as users can perform an mpath dump at any time. The existing path table lifetime is instead tied to the mesh BSS which can cause crashes when different MBSSes are joined in the context of a single interface, or when the path table is dumped when no MBSS is joined. Introduce a new function to perform the final teardown of the interface and perform path table cleanup there. We already free the individual path elements when the leaving the mesh so no additional cleanup is needed there. This fixes the following crash: [ 47.753026] BUG: unable to handle kernel paging request at fffffff0 [ 47.753026] IP: [<c0239765>] kthread_data+0xa/0xe [ 47.753026] *pde = 00741067 *pte = 00000000 [ 47.753026] Oops: 0000 [#4] PREEMPT [ 47.753026] Modules linked in: ppp_generic slhc 8021q garp mrp sch_fq_codel iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat ip_tables ath9k_htc ath5k 8139too ath10k_pci ath10k_core arc4 ath9k ath9k_common ath9k_hw mac80211 ath cfg80211 cpufreq_powersave br_netfilter bridge stp llc ipw usb_wwan sierra_net usbnet af_alg natsemi via_rhine mii iTCO_wdt iTCO_vendor_support gpio_ich sierra coretemp pcspkr i2c_i801 lpc_ich ata_generic ata_piix libata ide_pci_generic piix e1000e igb i2c_algo_bit ptp pps_core [last unloaded: 8139too] [ 47.753026] CPU: 0 PID: 12 Comm: kworker/u2:1 Tainted: G D W 4.5.0-wt-V3 #6 [ 47.753026] Hardware name: To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080016 11/07/2014 [ 47.753026] task: f645a0c0 ti: f6462000 task.ti: f6462000 [ 47.753026] EIP: 0060:[<c0239765>] EFLAGS: 00010002 CPU: 0 [ 47.753026] EIP is at kthread_data+0xa/0xe [ 47.753026] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000 [ 47.753026] ESI: f645a0c0 EDI: f645a2fc EBP: f6463a80 ESP: f6463a78 [ 47.753026] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 47.753026] CR0: 8005003b CR2: 00000014 CR3: 353e5000 CR4: 00000690 [ 47.753026] Stack: [ 47.753026] c0236866 00000000 f6463aac c05768b4 00000009 f6463ba8 f6463ab0 c0247010 [ 47.753026] 00000000 f645a0c0 f6464000 00000009 f6463ba8 f6463ab8 c0576eb2 f645a0c0 [ 47.753026] f6463aec c0228be4 c06335a4 f6463adc f6463ad0 c06c06d4 f6463ae4 c02471b0 [ 47.753026] Call Trace: [ 47.753026] [<c0236866>] ? wq_worker_sleeping+0xb/0x78 [ 47.753026] [<c05768b4>] __schedule+0xda/0x587 [ 47.753026] [<c0247010>] ? vprintk_default+0x12/0x14 [ 47.753026] [<c0576eb2>] schedule+0x72/0x89 [ 47.753026] [<c0228be4>] do_exit+0xb8/0x71d [ 47.753026] [<c02471b0>] ? kmsg_dump+0xa9/0xae [ 47.753026] [<c0203576>] oops_end+0x69/0x70 [ 47.753026] [<c021dcdb>] no_context+0x1bb/0x1c5 [ 47.753026] [<c021de1b>] __bad_area_nosemaphore+0x136/0x140 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c021de32>] bad_area_nosemaphore+0xd/0x10 [ 47.753026] [<c021e0a1>] __do_page_fault+0x26c/0x320 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c021e2fa>] do_page_fault+0xb/0xd [ 47.753026] [<c05798f8>] error_code+0x58/0x60 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c0239765>] ? kthread_data+0xa/0xe [ 47.753026] [<c0236866>] ? wq_worker_sleeping+0xb/0x78 [ 47.753026] [<c05768b4>] __schedule+0xda/0x587 [ 47.753026] [<c0247010>] ? vprintk_default+0x12/0x14 [ 47.753026] [<c0576eb2>] schedule+0x72/0x89 [ 47.753026] [<c0228be4>] do_exit+0xb8/0x71d [ 47.753026] [<c02471b0>] ? kmsg_dump+0xa9/0xae [ 47.753026] [<c0203576>] oops_end+0x69/0x70 [ 47.753026] [<c021dcdb>] no_context+0x1bb/0x1c5 [ 47.753026] [<c021de1b>] __bad_area_nosemaphore+0x136/0x140 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c021de32>] bad_area_nosemaphore+0xd/0x10 [ 47.753026] [<c021e0a1>] __do_page_fault+0x26c/0x320 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c021e2fa>] do_page_fault+0xb/0xd [ 47.753026] [<c05798f8>] error_code+0x58/0x60 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c0239765>] ? kthread_data+0xa/0xe [ 47.753026] [<c0236866>] ? wq_worker_sleeping+0xb/0x78 [ 47.753026] [<c05768b4>] __schedule+0xda/0x587 [ 47.753026] [<c0391e32>] ? put_io_context_active+0x6d/0x95 [ 47.753026] [<c0576eb2>] schedule+0x72/0x89 [ 47.753026] [<c02291f8>] do_exit+0x6cc/0x71d [ 47.753026] [<c0203576>] oops_end+0x69/0x70 [ 47.753026] [<c021dcdb>] no_context+0x1bb/0x1c5 [ 47.753026] [<c021de1b>] __bad_area_nosemaphore+0x136/0x140 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c021de32>] bad_area_nosemaphore+0xd/0x10 [ 47.753026] [<c021e0a1>] __do_page_fault+0x26c/0x320 [ 47.753026] [<c03b9160>] ? debug_smp_processor_id+0x12/0x16 [ 47.753026] [<c02015e2>] ? __switch_to+0x24/0x40e [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c021e2fa>] do_page_fault+0xb/0xd [ 47.753026] [<c05798f8>] error_code+0x58/0x60 [ 47.753026] [<c021e2ef>] ? vmalloc_sync_all+0x19a/0x19a [ 47.753026] [<c03b59d2>] ? rhashtable_walk_init+0x5c/0x93 [ 47.753026] [<f9843221>] mesh_path_tbl_expire.isra.24+0x19/0x82 [mac80211] [ 47.753026] [<f984408b>] mesh_path_expire+0x11/0x1f [mac80211] [ 47.753026] [<f9842bb7>] ieee80211_mesh_work+0x73/0x1a9 [mac80211] [ 47.753026] [<f98207d1>] ieee80211_iface_work+0x2ff/0x311 [mac80211] [ 47.753026] [<c0235fa3>] process_one_work+0x14b/0x24e [ 47.753026] [<c0236313>] worker_thread+0x249/0x343 [ 47.753026] [<c02360ca>] ? process_scheduled_works+0x24/0x24 [ 47.753026] [<c0239359>] kthread+0x9e/0xa3 [ 47.753026] [<c0578e50>] ret_from_kernel_thread+0x20/0x40 [ 47.753026] [<c02392bb>] ? kthread_parkme+0x18/0x18 [ 47.753026] Code: 6b c0 85 c0 75 05 e8 fb 74 fc ff 89 f8 84 c0 75 08 8d 45 e8 e8 34 dd 33 00 83 c4 28 5b 5e 5f 5d c3 55 8b 80 10 02 00 00 89 e5 5d <8b> 40 f0 c3 55 b9 04 00 00 00 89 e5 52 8b 90 10 02 00 00 8d 45 [ 47.753026] EIP: [<c0239765>] kthread_data+0xa/0xe SS:ESP 0068:f6463a78 [ 47.753026] CR2: 00000000fffffff0 [ 47.753026] ---[ end trace 867ca0bdd0767790 ]--- Fixes: 3b302ada7f0a ("mac80211: mesh: move path tables into if_mesh") Reported-by: Fred Veldini <fred.veldini@gmail.com> Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: expose txq queue depth and size to driversMichal Kazior2016-02-241-0/+1
| | | | | | | | | | | | | | | | This will allow drivers to make more educated decisions whether to defer transmission or not. Relying on wake_tx_queue() call count implicitly was not possible because it could be called without queued frame count actually changing on software tx aggregation start/stop code paths. It was also not possible to know how long byte-wise queue was without dequeueing. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix txq queue related crashesMichal Kazior2016-02-241-0/+3
| | | | | | | | | | | | The driver can access the queue simultanously while mac80211 tears down the interface. Without spinlock protection this could lead to corrupting sk_buff_head and subsequently to an invalid pointer dereference. Fixes: ba8c3d6f16a1 ("mac80211: add an intermediate software queue implementation") Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: process and save VHT MU-MIMO group frameSara Sharon2016-01-141-0/+10
| | | | | | | | | | | | | The Group ID Management frame is an Action frame of category VHT. It is transmitted by the AP to assign or change the user position of a STA for one or more group IDs. Process and save the group membership data. Notify underlying driver of changes. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: don't teardown sdata on sdata stopEliad Peller2015-12-021-1/+1
| | | | | | | | | | | | | | | | | Interfaces are being initialized (setup) on addition, and torn down on removal. However, p2p device is being torn down when stopped, resulting in the next p2p start operation being done on uninitialized interface. Solve it by calling ieee80211_teardown_sdata() only on interface removal (for the non-netdev case). Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> [squashed in fix to call teardown after unregister] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: ensure we don't update tx power on a non-running sdataEmmanuel Grumbach2015-11-201-1/+2
| | | | | | | | | | | We can't update the Tx power on the device unless it is running. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=101521. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: make enable_qos parameter to ieee80211_set_wmm_default()Johannes Berg2015-11-031-3/+5
| | | | | | | | The function currently determines this value, for use in bss_info.qos, based on the interface type itself. Make it a parameter instead and set it with the same logic for now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: remove PM-QoS listenerJohannes Berg2015-10-141-2/+2
| | | | | | | | | | As this API has never really seen any use and most drivers don't ever use the value derived from it, remove it. Change the only driver using it (rt2x00) to simply use the DTIM period instead of the "max sleep" time. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: process skb_queue while scanning in HWAndrei Otcheretianski2015-09-221-1/+1
| | | | | | | | | | | | | | | | | Queued frames aren't processed during scan, which results in an inability to complete the BA session establishment until the scan ends. Since we can't tx frames until the BA agreement setup is complete, it might result in a very large latency during scan. Fix this by allowing to process queued skbs while scanning in HW. This should be ok since the devices which support hw scan should be able to handle tx/rx while scanning. During SW scan, mac80211 drops any txed frames besides probes and NDPs, so it is still needed to delay processing of the queued frames till the SW scan is done. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add rate mask logic for vht ratesLorenzo Bianconi2015-08-141-2/+12
| | | | | | | | Define rc_rateidx_vht_mcs_mask array and rate_idx_match_vht_mcs_mask() method in order to apply mcs mask for vht rates Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: TDLS: handle chan-switch in RTNL locked workArik Nemtsov2015-07-171-2/+0Star
| | | | | | | | | | | | Move TDLS channel-switch Rx handling into an RTNL locked work. This is required to add proper regulatory checking to incoming channel-switch requests. Queue incoming requests in a dedicated skb queue and handle the request in a device-specific work to avoid deadlocking on interface removal. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: shut down interfaces before destroying interface listJohannes Berg2015-07-171-11/+14
| | | | | | | | | | | | | | | | | | | | | | | If the hardware is unregistered while interfaces are up, mac80211 will unregister all interfaces, which in turns causes mac80211 to be called again to remove them all from the driver and eventually shut down the hardware. During this shutdown, however, it's currently already unsafe to iterate the list of interfaces atomically, as the list is manipulated in an unsafe manner. This puts an undue burden on the driver - it must stop all its activities before calling ieee80211_unregister_hw(), while in the normal stop path it can do all cleanup in the stop method. If, for example, it's using the iteration during RX for some reason, it would have to stop RX before unregistering to avoid crashes. Fix this problem by closing all interfaces before unregistering them. This will cause the driver stop to have completed before we manipulate the interface list, and after the driver is stopped *and* has called ieee80211_unregister_hw() it really musn't be iterating any more as the memory will be freed as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: convert HW flags to unsigned long bitmapJohannes Berg2015-06-101-5/+5
| | | | | | | | | | | | | | | As we're running out of hardware capability flags pretty quickly, convert them to use the regular test_bit() style unsigned long bitmaps. This introduces a number of helper functions/macros to set and to test the bits, along with new debugfs code. The occurrences of an explicit __clear_bit() are intentional, the drivers were never supposed to change their supported bits on the fly. We should investigate changing this to be a per-frame flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-06-021-0/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/phy/amd-xgbe-phy.c drivers/net/wireless/iwlwifi/Kconfig include/net/mac80211.h iwlwifi/Kconfig and mac80211.h were both trivial overlapping changes. The drivers/net/phy/amd-xgbe-phy.c file got removed in 'net-next' and the bug fix that happened on the 'net' side is already integrated into the rest of the amd-xgbe driver. Signed-off-by: David S. Miller <davem@davemloft.net>
| * mac80211: fix AP_VLAN crypto tailroom calculationMichal Kazior2015-05-201-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some splats I was seeing: (a) WARNING: CPU: 1 PID: 0 at /devel/src/linux/net/mac80211/wep.c:102 ieee80211_wep_add_iv (b) WARNING: CPU: 1 PID: 0 at /devel/src/linux/net/mac80211/wpa.c:73 ieee80211_tx_h_michael_mic_add (c) WARNING: CPU: 3 PID: 0 at /devel/src/linux/net/mac80211/wpa.c:433 ieee80211_crypto_ccmp_encrypt I've seen (a) and (b) with ath9k hw crypto and (c) with ath9k sw crypto. All of them were related to insufficient skb tailroom and I was able to trigger these with ping6 program. AP_VLANs may inherit crypto keys from parent AP. This wasn't considered and yielded problems in some setups resulting in inability to transmit data because mac80211 wouldn't resize skbs when necessary and subsequently drop some packets due to insufficient tailroom. For efficiency purposes don't inspect both AP_VLAN and AP sdata looking for tailroom counter. Instead update AP_VLAN tailroom counters whenever their master AP tailroom counter changes. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-05-131-5/+7
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Four minor merge conflicts: 1) qca_spi.c renamed the local variable used for the SPI device from spi_device to spi, meanwhile the spi_set_drvdata() call got moved further up in the probe function. 2) Two changes were both adding new members to codel params structure, and thus we had overlapping changes to the initializer function. 3) 'net' was making a fix to sk_release_kernel() which is completely removed in 'net-next'. 4) In net_namespace.c, the rtnl_net_fill() call for GET operations had the command value fixed, meanwhile 'net-next' adjusted the argument signature a bit. This also matches example merge resolutions posted by Stephen Rothwell over the past two days. Signed-off-by: David S. Miller <davem@davemloft.net>
| * mac80211: don't warn when stopping VLAN with stationsJohannes Berg2015-04-201-5/+7
| | | | | | | | | | | | | | | | | | | | Stations assigned to an AP_VLAN type interface are flushed when the interface is stopped, but then we warn about it. Suppress the warning since there's nothing else that would ensure those stations are already removed at this point. Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: use per-CPU TX/RX statisticsJohannes Berg2015-04-241-1/+44
| | | | | | | | | | | | | | | | | | This isn't all that relevant for RX right now, but TX can be concurrent due to multi-queue and the accounting is therefore broken. Use the standard per-CPU statistics to avoid this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: remove support for IFF_PROMISCJohannes Berg2015-04-241-17/+2Star
|/ | | | | | | | | | | This support is essentially useless as typically networks are encrypted, frames will be filtered by hardware, and rate scaling will be done with the intended recipient in mind. For real monitoring of the network, the monitor mode support should be used instead. Removing it removes a lot of corner cases. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add an intermediate software queue implementationFelix Fietkau2015-04-011-1/+22
| | | | | | | | | | | | | | | | | | This allows drivers to request per-vif and per-sta-tid queues from which they can pull frames. This makes it easier to keep the hardware queues short, and to improve fairness between clients and vifs. The task of scheduling packet transmission is left up to the driver - queueing is controlled by mac80211. Drivers can only dequeue packets by calling ieee80211_tx_dequeue. This makes it possible to add active queue management later without changing drivers using this code. This can also be used as a starting point to implement A-MSDU aggregation in a way that does not add artificially induced latency. Signed-off-by: Felix Fietkau <nbd@openwrt.org> [resolved minor context conflict, minor changes, endian annotations] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: pass name_assign_type to rdev_add_virtual_intf()Tom Gundersen2015-03-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | This will expose in /sys whether the ifname of a device is set by userspace or generated by the kernel. The latter kind (wlanX, etc) is not deterministic, so userspace needs to rename these devices to names that are guaranteed to stay the same between reboots. The former, however should never be renamed, so userspace needs to be able to reliably tell the difference. Similar functionality was introduced for the rtnetlink core in commit 5517750f058e ("net: rtnetlink - make create_link take name_assign_type") Signed-off-by: Tom Gundersen <teg@jklm.no> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: Brett Rudley <brudley@broadcom.com> Cc: Arend van Spriel <arend@broadcom.com> Cc: Franky (Zhenhui) Lin <frankyl@broadcom.com> Cc: Hante Meuleman <meuleman@broadcom.com> Cc: Johannes Berg <johannes@sipsolutions.net> [reformat changelog to fit 72 cols] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: remove drop_unencrypted codeJohannes Berg2015-03-201-1/+0Star
| | | | | | | | | | This mechanism was historic, and only ever used by IBSS, which also doesn't need to have it as it properly manages station's 802.1X PAE state (or, with WEP, always has a key.) Remove the mechanism to clean up the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: avoid races related to suspend flowEmmanuel Grumbach2015-01-231-6/+1Star
| | | | | | | | | | | | | | | | | | | | | When we go to suspend, there is complex set of states that avoids races. The quiescing variable is set whlie __ieee80211_suspend is running. Then suspended is set. The code makes sure there is no window without any of these flags. The problem is that workers can still be enqueued while we are quiescing. This leads to situations where the driver is already suspending and other flows like disassociation are handled by a worker. To fix this, we need to check quiescing and suspended flags in the worker itself and not only before enqueueing it. I also add here extensive documentation to ease the understanding of these complex issues. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: enable TPC through mac80211 stackLorenzo Bianconi2015-01-231-2/+3
| | | | | | | | | | | | Control per packet Transmit Power Control (TPC) in lower drivers according to TX power settings configured by the user. In particular TPC is enabled if value passed in enum nl80211_tx_power_setting is NL80211_TX_POWER_LIMITED (allow using less than specified from userspace), whereas TPC is disabled if nl80211_tx_power_setting is set to NL80211_TX_POWER_FIXED (use value configured from userspace) Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: let flush() drop packets when possibleEmmanuel Grumbach2015-01-141-1/+1
| | | | | | | | | | | | | | | | When roaming / suspending, it makes no sense to wait until the transmit queues of the device are empty. In extreme condition they can be starved (VO saturating the air), but even in regular cases, it is pointless to delay the roaming because the low level driver is trying to send packets to an AP which is far away. We'd rather drop these packets and let TCP retransmit if needed. This will allow to speed up the roaming. For suspend, the explanation is even more trivial. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville2014-12-041-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Johannes Berg <johannes@sipsolutions.net> says: "This time I have Felix's no-status rate control work, which will allow drivers to work better with rate control even if they don't have perfect status reporting. In addition to this, a small hwsim fix from Patrik, one of the regulatory patches from Arik, and a number of cleanups and fixes I did myself. Of note is a patch where I disable CFG80211_WEXT so that compatibility is no longer selectable - this is intended as a wake-up call for anyone who's still using it, and is still easily worked around (it's a one-line patch) before we fully remove the code as well in the future." Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: copy chandef from AP vif to VLANsFelix Fietkau2014-11-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of keeping track of all those special cases where VLAN interfaces have no bss_conf.chandef, just make sure they have the same as the AP interface they belong to. Among others, this fixes a crash getting a VLAN's channel from userspace since a NULL channel is returned as a good result (return value 0) for VLANs since the commit below. Cc: stable@vger.kernel.org [3.18 only] Fixes: c12bc4885f4b3 ("mac80211: return the vif's chandef in ieee80211_cfg_get_channel()") Signed-off-by: Felix Fietkau <nbd@openwrt.org> [rewrite commit log] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge tag 'mac80211-next-for-john-2014-11-20' of ↵John W. Linville2014-11-201-0/+2
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg <johannes@sipsolutions.net> says: "It has been a while since my last pull request, so we accumulated another relatively large set of changes: * TDLS off-channel support set from Arik/Liad, with some support patches I did * custom regulatory fixes from Arik * minstrel VHT fix (and a small optimisation) from Felix * add back radiotap vendor namespace support (myself) * random MAC address scanning for cfg80211/mac80211/hwsim (myself) * CSA improvements (Luca) * WoWLAN Net Detect (wake on network found) support (Luca) * and lots of other smaller changes from many people" Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: add TDLS channel-switch Rx flowArik Nemtsov2014-11-191-0/+2
| | | | | | | | | | | | | | | | | | | | When receiving a TDLS channel switch request or response, parse the frame and call a new tdls_recv_channel_switch op in the low level driver with the parsed data. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge commit '4e6ce4dc7ce71d0886908d55129d5d6482a27ff9' of ↵John W. Linville2014-11-191-6/+12
|\ \ | |/ |/| | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
| * mac80211: properly flush delayed scan work on interface removalJohannes Berg2014-10-301-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an interface is deleted, an ongoing hardware scan is canceled and the driver must abort the scan, at the very least reporting completion while the interface is removed. However, if it scheduled the work that might only run after everything is said and done, which leads to cfg80211 warning that the scan isn't reported as finished yet; this is no fault of the driver, it already did, but mac80211 hasn't processed it. To fix this situation, flush the delayed work when the interface being removed is the one that was executing the scan. Cc: stable@vger.kernel.org Reported-by: Sujith Manoharan <sujith@msujith.org> Tested-by: Sujith Manoharan <sujith@msujith.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: flush keys for AP mode on ieee80211_do_stopFelix Fietkau2014-10-291-5/+6
| | | | | | | | | | | | | | | | | | | | Userspace can add keys to an AP mode interface before start_ap has been called. If there have been no calls to start_ap/stop_ap in the mean time, the keys will still be around when the interface is brought down. Signed-off-by: Felix Fietkau <nbd@openwrt.org> [adjust comments, fix AP_VLAN case] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: 802.11p OCB mode supportRostislav Lisovy2014-11-041-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds 802.11p OCB (Outside the Context of a BSS) mode support. When communicating in OCB mode a mandatory wildcard BSSID (48 '1' bits) is used. The EDCA parameters handling function was changed to support 802.11p specific values. The insertion of a newly discovered STAs is done in the similar way as in the IBSS mode -- through the deferred insertion. The OCB mode uses a periodic 'housekeeping task' for expiration of disconnected STAs (in the similar manner as in the MESH mode). New Kconfig option for verbose OCB debugging outputs is added. Signed-off-by: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: 802.11p OCB mode handlingRostislav Lisovy2014-11-041-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds new iface type (NL80211_IFTYPE_OCB) representing the OCB (Outside the Context of a BSS) mode. When establishing a connection to the network a cfg80211_join_ocb function is called (particular nl80211_command is added as well). A mandatory parameters during the ocb_join operation are 'center frequency' and 'channel width (5/10 MHz)'. Changes done in mac80211 are minimal possible required to avoid many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB' not handled in switch) during compilation. Full functionality (where needed) is added in the following patch. Signed-off-by: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: support creating vifs with specified mac addressBen Greear2014-10-271-1/+4
| | | | | | | | | | | | | | This is useful when creating virtual interfaces. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: wait for the first beacon on the new channel after CSALuciano Coelho2014-10-091-0/+2
|/ | | | | | | | | | | Instead of immediately reopening the queues (in case of block_tx), calling the post_channel_switch operation and sending the notification, wait for the first beacon on the new channel. This makes sure that we don't lose packets if the AP/GO is not on the new channel yet. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add Intel Mobile Communications copyrightJohannes Berg2014-09-051-0/+1
| | | | | | | | | | | | | Our legal structure changed at some point (see wikipedia), but we forgot to immediately switch over to the new copyright notice. For files that we have modified in the time since the change, add the proper copyright notice now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix offloaded BA session traffic after hw restartMichal Kazior2014-09-031-11/+3Star
| | | | | | | | | | | | | | | | | | | | | | When starting an offloaded BA session it is unknown what starting sequence number should be used. Using last_seq worked in most cases except after hw restart. When hw restart is requested last_seq is (rightfully so) kept unmodified. This ended up with BA sessions being restarted with an aribtrary BA window values resulting in dropped frames until sequence numbers caught up. Instead of last_seq pick seqno of a first Rxed frame of a given BA session. This fixes stalled traffic after hw restart with offloaded BA sessions (currently only ath10k). Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge tag 'master-2014-07-25' of ↵David S. Miller2014-07-291-2/+29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== pull request: wireless-next 2014-07-25 Please pull this batch of updates intended for the 3.17 stream! For the mac80211 bits, Johannes says: "We have a lot of TDLS patches, among them a fix that should make hwsim tests happy again. The rest, this time, is mostly small fixes." For the Bluetooth bits, Gustavo says: "Some more patches for 3.17. The most important change here is the move of the 6lowpan code to net/6lowpan. It has been agreed with Davem that this change will go through the bluetooth tree. The rest are mostly clean up and fixes." and, "Here follows some more patches for 3.17. These are mostly fixes to what we've sent to you before for next merge window." For the iwlwifi bits, Emmanuel says: "I have the usual amount of BT Coex stuff. Arik continues to work on TDLS and Ariej contributes a few things for HS2.0. I added a few more things to the firmware debugging infrastructure. Eran fixes a small bug - pretty normal content." And for the Atheros bits, Kalle says: "For ath6kl me and Jessica added support for ar6004 hw3.0, our latest version of ar6004. For ath10k Janusz added a printout so that it's easier to check what ath10k kconfig options are enabled. He also added a debugfs file to configure maximum amsdu and ampdu values. Also we had few fixes as usual." On top of that is the usual large batch of various driver updates -- brcmfmac, mwifiex, the TI drivers, and wil6210 all get some action. Rafał has also been very busy with b43 and related updates. Also, I pulled the wireless tree into this in order to resolve a merge conflict... P.S. The change to fs/compat_ioctl.c reflects a name change in a Bluetooth header file... ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * mac80211: add support for Rx reordering offloadingMichal Kazior2014-07-211-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some drivers may be performing most of Tx/Rx aggregation on their own (e.g. in firmware) including AddBa/DelBa negotiations but may otherwise require Rx reordering assistance. The patch exports 2 new functions for establishing Rx aggregation sessions in assumption device driver has taken care of the necessary negotiations. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> [fix endian bug] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * mac80211: move TDLS data to mgd private partArik Nemtsov2014-07-211-2/+0Star
| | | | | | | | | | | | | | | | | | | | We can only be a station for TDLS connections. Also fix a bug where a delayed work could be left scheduled if the station interface was brought down during TDLS setup. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | net: set name_assign_type in alloc_netdev()Tom Gundersen2014-07-161-3/+3
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert all users to pass NET_NAME_UNKNOWN. Coccinelle patch: @@ expression sizeof_priv, name, setup, txqs, rxqs, count; @@ ( -alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs) +alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs) | -alloc_netdev_mq(sizeof_priv, name, setup, count) +alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count) | -alloc_netdev(sizeof_priv, name, setup) +alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup) ) v9: move comments here from the wrong commit Signed-off-by: Tom Gundersen <teg@jklm.no> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac80211: cleanup TDLS state during failed setupArik Nemtsov2014-06-231-0/+2
| | | | | | | | | When setting up a TDLS session, register a delayed work to remove the peer if setup times out. Prevent concurrent setups to support this capacity. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: stop only the queues assigned to the vif during channel switchLuciano Coelho2014-06-231-5/+5
| | | | | | | | | | | | | Instead of stopping all the hardware queues during channel switch, which is especially bad when we have large CSA counts, stop only the queues that are assigned to the vif that is performing the channel switch. Additionally, check for (sdata->csa_block_tx) instead of calling ieee80211_csa_needs_block_tx(), which can now be removed. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: introduce refcount for queue_stop_reasonsLuciano Coelho2014-06-231-1/+2
| | | | | | | | | | | | | Sometimes different vifs may be stopping the queues for the same reason (e.g. when several interfaces are performing a channel switch). Instead of using a bitmask for the reasons, use an integer that holds a refcount instead. In order to keep it backwards compatible, introduce a boolean in some functions that tell us whether the queue stopping should be refcounted or not. For now, use not refcounted for all calls to keep it functionally the same as before. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: make ethtool the driver's responsibilityJohannes Berg2014-06-231-0/+2
| | | | | | | | | | | | | Currently, cfg80211 tries to implement ethtool, but that doesn't really scale well, with all the different operations. Make the lower-level driver responsible for it, which currently only has an effect on mac80211. It will similarly not scale well at that level though, since mac80211 also has many drivers. To cleanly implement this in mac80211, introduce a new file and move some code to appropriate places. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-06-121-1/+0Star
|\ | | | | | | | | | | | | | | | | | | Conflicts: net/core/rtnetlink.c net/core/skbuff.c Both conflicts were very simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
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