26 Jul, 2019
1 commit
-
Implement the basics required for supporting high efficiency with mesh:
include HE information elements in beacons, probe responses, and peering
action frames, and check for compatible HE configurations when peering.Signed-off-by: Sven Eckelmann
Forwarded: https://patchwork.kernel.org/patch/11029299/
Link: https://lore.kernel.org/r/20190724163359.3507-2-sven@narfation.org
Signed-off-by: Johannes Berg
19 Jun, 2019
1 commit
-
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundationthis program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Enrico Weigelt
Reviewed-by: Kate Stewart
Reviewed-by: Allison Randal
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman
08 Apr, 2019
1 commit
-
Add support for mesh airtime link metric attribute
NL80211_STA_INFO_AIRTIME_LINK_METRIC.Signed-off-by: Narayanraddi Masti
Signed-off-by: Johannes Berg
20 Feb, 2019
1 commit
-
Two easily resolvable overlapping change conflicts, one in
TCP and one in the eBPF verifier.Signed-off-by: David S. Miller
15 Feb, 2019
1 commit
-
The mesh table code walks over hash tables for two purposes. First of
all it's used as part of a netlink dump process, but it is also used
for looking up entries to delete using criteria other than the hash
key.The second purpose is directly contrary to the design specification
of rhashtable walks. It is only meant for use by netlink dumps.This is because rhashtable is resizable and you cannot obtain a
stable walk over it during a resize process.In fact mesh's use of rhashtable for dumping is bogus too. Rather
than using rhashtable walk's iterator to keep track of the current
position, it always converts the current position to an integer
which defeats the purpose of the iterator.Therefore this patch converts all uses of rhashtable walk into a
simple linked list.This patch also adds a new spin lock to protect the hash table
insertion/removal as well as the walk list modifications. In fact
the previous code was buggy as the removals can race with each
other, potentially resulting in a double-free.Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu
Signed-off-by: Johannes Berg
19 Jan, 2019
1 commit
-
Expose path change count to destination in mpath info
Signed-off-by: Julan Hsu
Signed-off-by: Johannes Berg
09 Nov, 2018
1 commit
-
When peering is in userspace, some implementations may want to control
which peers are accepted based on RSSI in addition to the information
elements being sent today. Add signal level so that info is available
to clients.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
10 Sep, 2018
1 commit
-
TX status reporting to ieee80211s is through ieee80211s_update_metric.
There are two problems about ieee80211s_update_metric:1. The purpose is to estimate the fail probability
to a specific link. No need to restrict to data frame.2. Current implementation does not work if wireless driver does not
pass tx_status with skb.Fix this by removing ieee80211_is_data condition, passing
ieee80211_tx_status directly to ieee80211s_update_metric, and
putting it in both __ieee80211_tx_status and ieee80211_tx_status_ext.Signed-off-by: Yuan-Chi Pang
Signed-off-by: Johannes Berg
20 Nov, 2017
1 commit
-
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.Cc: Johannes Berg
Cc: "David S. Miller"
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook
Signed-off-by: Johannes Berg
06 Oct, 2017
1 commit
-
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. This requires adding a pointer back
to the sta_info since container_of() can't resolve the sta_info.Cc: Johannes Berg
Cc: "David S. Miller"
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: Thomas Gleixner
Signed-off-by: Kees Cook
Signed-off-by: Johannes Berg
13 Dec, 2016
1 commit
-
These functions drifts TSF timers, not TBTT.
Signed-off-by: Masashi Honma
Signed-off-by: Johannes Berg
06 Apr, 2016
6 commits
-
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: [] 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:[] 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] [] ? wq_worker_sleeping+0xb/0x78
[ 47.753026] [] __schedule+0xda/0x587
[ 47.753026] [] ? vprintk_default+0x12/0x14
[ 47.753026] [] schedule+0x72/0x89
[ 47.753026] [] do_exit+0xb8/0x71d
[ 47.753026] [] ? kmsg_dump+0xa9/0xae
[ 47.753026] [] oops_end+0x69/0x70
[ 47.753026] [] no_context+0x1bb/0x1c5
[ 47.753026] [] __bad_area_nosemaphore+0x136/0x140
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] bad_area_nosemaphore+0xd/0x10
[ 47.753026] [] __do_page_fault+0x26c/0x320
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] do_page_fault+0xb/0xd
[ 47.753026] [] error_code+0x58/0x60
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] ? kthread_data+0xa/0xe
[ 47.753026] [] ? wq_worker_sleeping+0xb/0x78
[ 47.753026] [] __schedule+0xda/0x587
[ 47.753026] [] ? vprintk_default+0x12/0x14
[ 47.753026] [] schedule+0x72/0x89
[ 47.753026] [] do_exit+0xb8/0x71d
[ 47.753026] [] ? kmsg_dump+0xa9/0xae
[ 47.753026] [] oops_end+0x69/0x70
[ 47.753026] [] no_context+0x1bb/0x1c5
[ 47.753026] [] __bad_area_nosemaphore+0x136/0x140
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] bad_area_nosemaphore+0xd/0x10
[ 47.753026] [] __do_page_fault+0x26c/0x320
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] do_page_fault+0xb/0xd
[ 47.753026] [] error_code+0x58/0x60
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] ? kthread_data+0xa/0xe
[ 47.753026] [] ? wq_worker_sleeping+0xb/0x78
[ 47.753026] [] __schedule+0xda/0x587
[ 47.753026] [] ? put_io_context_active+0x6d/0x95
[ 47.753026] [] schedule+0x72/0x89
[ 47.753026] [] do_exit+0x6cc/0x71d
[ 47.753026] [] oops_end+0x69/0x70
[ 47.753026] [] no_context+0x1bb/0x1c5
[ 47.753026] [] __bad_area_nosemaphore+0x136/0x140
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] bad_area_nosemaphore+0xd/0x10
[ 47.753026] [] __do_page_fault+0x26c/0x320
[ 47.753026] [] ? debug_smp_processor_id+0x12/0x16
[ 47.753026] [] ? __switch_to+0x24/0x40e
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] do_page_fault+0xb/0xd
[ 47.753026] [] error_code+0x58/0x60
[ 47.753026] [] ? vmalloc_sync_all+0x19a/0x19a
[ 47.753026] [] ? rhashtable_walk_init+0x5c/0x93
[ 47.753026] [] mesh_path_tbl_expire.isra.24+0x19/0x82 [mac80211]
[ 47.753026] [] mesh_path_expire+0x11/0x1f [mac80211]
[ 47.753026] [] ieee80211_mesh_work+0x73/0x1a9 [mac80211]
[ 47.753026] [] ieee80211_iface_work+0x2ff/0x311 [mac80211]
[ 47.753026] [] process_one_work+0x14b/0x24e
[ 47.753026] [] worker_thread+0x249/0x343
[ 47.753026] [] ? process_scheduled_works+0x24/0x24
[ 47.753026] [] kthread+0x9e/0xa3
[ 47.753026] [] ret_from_kernel_thread+0x20/0x40
[ 47.753026] [] ? 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 40 f0 c3 55 b9 04 00 00 00 89 e5 52 8b 90 10 02 00 00 8d 45
[ 47.753026] EIP: [] 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
Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
Several of the mesh path fields are undocumented and some
of the documentation is no longer correct or relevant after
the switch to rhashtable. Clean up the kernel doc
accordingly and reorder some fields to match the structure
layout.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
Reduce padding waste in struct mesh_table and struct rmc_entry by
moving the smaller fields to the end.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
Since we have converted the mesh path tables to rhashtable, we are
no longer swapping out the entire mesh_pathtbl pointer with RCU.
As a result, we no longer need indirection to the hlist head for
the gates list and can simply embed it, saving a pair of
pointer-sized allocations.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
The RMC cache has 256 list heads plus a u32, which puts it at the
unfortunate size of 4104 bytes with padding. kmalloc() will then
round this up to the next power-of-two, so we wind up actually
using two pages here where most of the second is wasted.Switch to hlist heads here to reduce the structure size down to
fit within a page.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
The mesh_path_reclaim() function, called from an rcu callback, cancels
the mesh_path_timer associated with a mesh path. Unfortunately, this
call can happen much later, perhaps after the hash table itself is
destroyed.Such a situation led to the following crash in mesh_path_send_to_gates()
when dereferencing the tbl pointer:[ 23.901661] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 23.905516] IP: [] mesh_path_send_to_gates+0x2b/0x740
[ 23.908757] PGD 99ca067 PUD 99c4067 PMD 0
[ 23.910789] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 23.913485] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.5.0-rc6-wt+ #43
[ 23.916675] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 23.920471] task: ffffffff81685500 ti: ffffffff81678000 task.ti: ffffffff81678000
[ 23.922619] RIP: 0010:[] [] mesh_path_send_to_gates+0x2b/0x740
[ 23.925237] RSP: 0018:ffff88000b403d30 EFLAGS: 00010286
[ 23.926739] RAX: 0000000000000000 RBX: ffff880009bc0d20 RCX: 0000000000000102
[ 23.928796] RDX: 000000000000002e RSI: 0000000000000001 RDI: ffff880009bc0d20
[ 23.930895] RBP: ffff88000b403e18 R08: 0000000000000001 R09: 0000000000000001
[ 23.932917] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880009c20940
[ 23.936370] R13: ffff880009bc0e70 R14: ffff880009c21c40 R15: ffff880009bc0d20
[ 23.939823] FS: 0000000000000000(0000) GS:ffff88000b400000(0000) knlGS:0000000000000000
[ 23.943688] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 23.946429] CR2: 0000000000000008 CR3: 00000000099c5000 CR4: 00000000000006b0
[ 23.949861] Stack:
[ 23.950840] 000000000000002e ffff880009c20940 ffff88000b403da8 ffffffff8109e551
[ 23.954467] ffffffff82711be2 000000000000002e 0000000000000000 ffffffff8166a5f5
[ 23.958141] 0000000000685ce8 0000000000000246 ffff880009bc0d20 ffff880009c20940
[ 23.961801] Call Trace:
[ 23.962987]
[ 23.963963] [] ? vprintk_emit+0x351/0x5e0
[ 23.966782] [] ? vprintk_default+0x1f/0x30
[ 23.969529] [] ? printk+0x48/0x50
[ 23.971956] [] mesh_path_timer+0x133/0x160
[ 23.974707] [] ? mesh_nexthop_resolve+0x230/0x230
[ 23.977775] [] call_timer_fn+0xce/0x330
[ 23.980448] [] ? call_timer_fn+0x5/0x330
[ 23.983126] [] ? mesh_nexthop_resolve+0x230/0x230
[ 23.986091] [] run_timer_softirq+0x22c/0x390Instead of cancelling in the RCU callback, set a new flag to prevent the
timer from being rearmed, and then cancel the timer synchronously when
freeing the mesh path. This leaves mesh_path_reclaim() doing nothing
but kfree, so switch to kfree_rcu().Fixes: 3b302ada7f0a ("mac80211: mesh: move path tables into if_mesh")
Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
05 Apr, 2016
3 commits
-
In the time since the mesh path table was implemented as an
RCU-traversable, dynamically growing hash table, a generic RCU
hashtable implementation was added to the kernel.Switch the mesh path table over to rhashtable to remove some code
and also gain some features like automatic shrinking.Cc: Thomas Graf
Cc: netdev@vger.kernel.org
Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
The mesh path table uses a struct mesh_node in its hlists in
order to support a resizable hash table: the mesh_node provides
an indirection to the actual mesh path so that two different
bucket lists can point to the same path entry.However, for the known gates list, we don't need this indirection
because there is ever only one list. So we can just embed the
hlist_node in the mesh path itself, which simplifies things a bit
and saves a linear search whenever we need to find an item in
the list.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg -
The mesh path and mesh gate hashtables are global, containing
all of the mpaths for every mesh interface, but the paths are
all tied logically to a single interface. The common case is
just a single mesh interface, so optimize for that by moving
the global hashtable into the per-interface struct.Doing so allows us to drop sdata pointer comparisons inside
the lookups and also saves a few bytes of BSS and data.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
02 Mar, 2016
1 commit
-
…inux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Here's another round of updates for -next:
* big A-MSDU RX performance improvement (avoid linearize of paged RX)
* rfkill changes: cleanups, documentation, platform properties
* basic PBSS support in cfg80211
* MU-MIMO action frame processing support
* BlockAck reordering & duplicate detection offload support
* various cleanups & little fixes
====================Signed-off-by: David S. Miller <davem@davemloft.net>
24 Feb, 2016
1 commit
-
The mean_chain_len field in struct mesh_table is copied whenever a
new mesh table is allocated, but only ever has the value 2 and is
never otherwise updated, so just remove it and use the related
define instead.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
26 Jan, 2016
1 commit
-
During a sw scan ieee80211_iface_work ignores work items for all vifs.
However after the scan complete work is requeued only for STA, ADHOC
and MESH iftypes.This occasionally results in event processing getting delayed/not
processed for iftype AP when it coexists with a STA. This can result
in data halt and eventually disconnection on the AP interface.Cc: stable@vger.kernel.org
Signed-off-by: Sachin Kulkarni
Signed-off-by: Johannes Berg
05 Oct, 2015
1 commit
-
The function returns always non-negative values.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Signed-off-by: Andrzej Hajda
Signed-off-by: Johannes Berg
22 Sep, 2015
1 commit
-
Implement the basics required for supporting very high throughput
with mesh: include VHT information elements in beacons, probe
responses, and peering action frames, and check for compatible VHT
configurations when peering.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
09 Oct, 2014
1 commit
-
Implement get_mpp and dump_mpp cfg80211_ops to export the content of the
802.11s mesh proxy path table to userspace.Signed-off-by: Henning Rogge
Signed-off-by: Johannes Berg
26 Nov, 2013
2 commits
-
Use put_unaligned_le16 and put_unaligned_le32 for
mesh_path_error_tx and mesh_path_sel_frame_tx.Signed-off-by: Chun-Yeow Yeoh
Signed-off-by: Johannes Berg -
Said function was removed some time ago.
Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
18 Jun, 2013
1 commit
-
Instead of updating the mesh beacon immediately when
requested (which would require the sdata_lock()), defer it
to the mac80211 workqueue.Fixes yet another deadlock on calling sta_info_flush()
with the sdata_lock() held from ieee80211_stop_mesh(). We
could just drop the sdata_lock() around the
mesh_sta_cleanup() call, but this path is also taken from
several non-locked error paths.Signed-off-by: Thomas Pedersen
[fix comment position]
Signed-off-by: Johannes Berg
11 Jun, 2013
1 commit
-
The time it takes to see the peer link expire may differ
by a minute since sta_expire() is run once a minute as a
mesh housekeeping task.Signed-off-by: Colleen Twitty
Signed-off-by: Johannes Berg
03 Jun, 2013
1 commit
-
Cap max peerings at 63 in accordance with IEEE-2012 8.4.2.100.7.
Triggers a beacon regeneration every time the number of peerings changes.
Previously this would only happen if the "accepting peerings" bit changed.Signed-off-by: Jacob Minshall
Signed-off-by: Johannes Berg
08 Apr, 2013
1 commit
-
Most times that mesh_path_add() is called, it is followed by
a lookup to get the just-added mpath. We can instead just
return the new mpath in the case that we allocated one (or the
existing one if already there), so do that. Also, reorder the
code in mesh_path_add a bit so that we don't need to allocate
in the pre-existing case.Signed-off-by: Bob Copeland
Signed-off-by: Johannes Berg
06 Mar, 2013
1 commit
-
Remove not used any longer suspend/resume code.
Signed-off-by: Stanislaw Gruszka
Signed-off-by: Johannes Berg
15 Feb, 2013
4 commits
-
There's various code with strange indentation,
questionable loop and locking constructs, etc.The bigger change is moving the "sdata" argument
to the first argument of all functions, like all
other mac80211 functions that have one.Signed-off-by: Johannes Berg
-
Previously, the entire mesh beacon would be generated each
time the beacon timer fired. Instead generate a beacon
head and tail (so the TIM can easily be inserted when mesh
power save is on) when starting a mesh or the MBSS
parameters change.Also add a mutex for protecting beacon updates and
preventing leaks.Signed-off-by: Thomas Pedersen
Signed-off-by: Johannes Berg -
Make all the parsed IE pointers const, and propagate
the change to all the users etc.Signed-off-by: Johannes Berg
-
A few mesh utility functions will call
ieee80211_bss_info_change_notify(), and then the caller
might notify the driver of the same change again. Avoid
this redundancy by propagating the BSS changes and
generally calling bss_info_change_notify() once per
change.Signed-off-by: Thomas Pedersen
Signed-off-by: Johannes Berg
12 Feb, 2013
1 commit
-
The patch "mac80211: clean up mesh sta allocation warning"
moved some mesh initialization into a path which is only
called when the kernel handles peering. This causes a hang
when mac80211 tries to clean up a userspace-allocated
station entry and delete a timer which has never been
initialized.To avoid this, only do any mesh sta peering teardown if
the kernel is actually handling it.The same is true when quiescing before suspend.
Signed-off-by: Thomas Pedersen
Signed-off-by: Johannes Berg
05 Feb, 2013
1 commit
-
Add routines to
- maintain a PS mode for each peer and a non-peer PS mode
- indicate own PS mode in transmitted frames
- track neighbor STAs power modes
- buffer frames when neighbors are in PS mode
- add TIM and Awake Window IE to beacons
- release frames in Mesh Peer Service PeriodsAdd local_pm to sta_info to represent the link-specific power
mode at this station towards the remote station. When a peer
link is established, use the default power mode stored in mesh
config. Update the PS status if the peering status of a neighbor
changes.
Maintain a mesh power mode for non-peer mesh STAs. Set the
non-peer power mode to active mode during peering. Authenticated
mesh peering is currently not working when either node is
configured to be in power save mode.Indicate the current power mode in transmitted frames. Use QoS
Nulls to indicate mesh power mode transitions.
For performance reasons, calls to the function setting the frame
flags are placed in HWMP routing routines, as there the STA
pointer is already available.Add peer_pm to sta_info to represent the peer's link-specific
power mode towards the local station. Add nonpeer_pm to
represent the peer's power mode towards all non-peer stations.
Track power modes based on received frames.Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS
neighbor counter and group-addressed frame buffer).Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame
buffering routines in the tx path. Update num_sta_ps to buffer
and release group-addressed frames after DTIM beacons.Announce the awake window duration in beacons if in light or
deep sleep mode towards any peer or non-peer. Create a TIM IE
similarly to AP mode and add it to mesh beacons. Parse received
Awake Window IEs and check TIM IEs for buffered frames.Release frames towards peers in mesh Peer Service Periods. Use
the corresponding trigger frames and monitor the MPSP status.
Append a QoS Null as trigger frame if neccessary to properly end
the MPSP. Currently, in HT channels MPSPs behave imperfectly and
show large delay spikes and frame losses.Signed-off-by: Marco Porsch
Signed-off-by: Ivan Bezyazychnyy
Signed-off-by: Mike Krinkin
Signed-off-by: Max Filippov
Signed-off-by: Johannes Berg
17 Jan, 2013
1 commit
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Move the default mesh beacon interval and DTIM period to cfg80211
and make them accessible to nl80211. This enables setting both
values when joining an MBSS.Previously the DTIM parameter was not set by mac80211 so the
driver's default value was used.Signed-off-by: Marco Porsch
Signed-off-by: Johannes Berg