performance improvements, and various patches all over,
rather than listing them one might as well look into the
git log instead.
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Merge tag 'mac80211-next-for-john-2014-08-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg <johannes@sipsolutions.net> says:
"Not that much content this time. Some RCU cleanups, crypto
performance improvements, and various patches all over,
rather than listing them one might as well look into the
git log instead."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Conflicts:
drivers/net/wireless/ath/wil6210/wmi.c
and adds a terminating NUL-byte to the alpha2 sent to userspace, which
shouldn't be necessary but since many places treat it as a string we
couldn't move to just sending two bytes.
In addition to that, we have two VLAN fixes from Felix, a mesh fix, a
fix for the recently introduced RX aggregation offload, a revert for
a broken patch (that luckily didn't really cause any harm) and a small
fix for alignment in debugfs.
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Merge tag 'mac80211-for-john-2014-08-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg <johannes@sipsolutions.net> says:
"Here are a few fixes for mac80211. One has been discussed for a while
and adds a terminating NUL-byte to the alpha2 sent to userspace, which
shouldn't be necessary but since many places treat it as a string we
couldn't move to just sending two bytes.
In addition to that, we have two VLAN fixes from Felix, a mesh fix, a
fix for the recently introduced RX aggregation offload, a revert for
a broken patch (that luckily didn't really cause any harm) and a small
fix for alignment in debugfs."
Signed-off-by: John W. Linville <linville@redhat.com>
The auxiliary station is being handled using the internal
station helper functions, clean that up and make the helpers
static.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Unify all the functions that handle the per-interface broadcast
station and make them have mvm and vif parameters. While at it,
add a new function to allocate the broadcast station instead of
open-coding it, and make the combined alloc+send and free+send
functions use the alloc/free & send functions.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
There are a few places that can call the function
iwl_mvm_mac_get_queues_mask() instead of open-coding the
equivalent, so do that. This requires changing it to return
the multicast queue as part of the bitmap, which broke GO
mode because including it in the broadcast station queues
seems to confuse the firmware, so work around that.
Also, the API defines that the CAB queue shouldn't be
included in the TFD queue mask, adjust the comment
accordingly (not a bug).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Instead of checking whether a given station is the first to
be added on a client interface check for the new TDLS flag
and warn in the unexpected cases.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The queue handling is a bit unclear - we have an array for
stop_count[IWL_MAX_HW_QUEUES] but indices really are the
mac80211 queue numbers. Change the array to be only of the
right size for mac80211 queues (IEEE80211_MAX_QUEUES) and
rename it to be clearer.
While at it, also remove the unused transport queue stop
bitmap in mvm.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Move all FIFO definitions together into the firmware API
header file and use the same enum/naming scheme for the
command FIFO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The firmware would like to have a MAC context (unassoc)
before the AP station is removed (we do this) but would
like to keep the BSSID until after it is removed, so we
need to send two commands - one with the BSSID before
and one without the BSSID after.
In order to do this, we need to store the BSSID as it
will have been cleared by mac80211 by the time we get
notified of the disassociation. Also pass it around as
an override to the various functions needing it, and
keep taking it from the mac80211 data otherwise. This
avoids having to keep track of the BSSID in all modes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
During a channel switch we should tell the firmware to disable TX
temporarily and re-enable it after the switch is done.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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>
Currently the firmware is handling this, but that is wrong as it then
needs to assume a certain command queue, therefore this should be in
the driver; add it here so it can be removed from the firmware in the
future.
Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Currently a valid sta_id is assumed to mean that the queue is
meant to also be aggregated, but that assumption will not be
true in the future, so don't make it in the lower level but
only in the inline wrapper.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
In a later patch, the hardware configuration will be moved to
firmware. Prepare for this by allowing hardware configuration
in the transport to be skipped by not passing a configuration
on enable and passing configure_scd=false on disable.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The tracepoints that are only used in code linked with iwlwifi.ko,
as are the tracepoints, don't need to be exported, so don't.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
In order to follow more easily what's going on, add some
debug statements to the quota allocation algorithm.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Enable fragmented scan that was diabled due to a FW bug.
New fixed FWs use a TLV bit to advertise fragmented scan support.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Instead of having all arguments passed to the function,
add a struct to hold them and only pass some directly.
This will make future work in this area cleaner.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Configuring the hw scheduler during queue enablement is done by
writing the appropriate values to the scheduler peripherals, and
it is essentially the same for all buses.
Whenever writing is done via the standard iwl_write_prph, we can
avoid duplicating the code for each bus. Those operations are
queue deactivation, RA/TID mapping, chain-building settings,
enabling/disabling aggregations and activating/deactivating the
TX FIFOs.
Consolidate this code using static inlines in a new header file.
Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Make sure that when running the TDLS discovery session
protection - the time event that ensures we remain on channel
has been scheduled and started running before leaving.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
We need to disable PS when a monitor vif is active or, in the future,
when a channel switch is happening. Add a boolean to mvmvif that
allows PS to be disabled generically. Additionally, make the monitor
interface use this new flag when it gets activated.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Add a new iwl_mvm_power_update_ps() function that allows only ps to be
updated according to changes in the vifs. This allows us to disable
ps only without affecting the pm values of the vifs (and to avoid
sending unnecessary MAC_PM_POWER_TABLE commands to the firmware).
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Separate the ps part of iwl_mvm_power_set_pm() into a new
iwl_mvm_power_set_ps() function. This will enable us to update the ps
part independently from the rest, which is needed by CSA (at least).
This required a bit of refactoring and the creation of a new iterator
function.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If a monitor interface is added and then removed, we don't reset the
mvm->ps_disabled flag, so we never re-enable power saving. Fix that
and rearrange the code a bit.
Additionally, fix a small indentation mistake in the
iwl_mvm_power_set_pm() function declaration.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If recovery happened after mvm entered d0i3 (e.g.
due to sysassert when releasing the bus), the
mvm->state wasn't cleared properly, causing the
ongoing recovery to fail (due to iwl_mvm_ref_sync
failure).
This in turn fails the ongoing recovery, and triggers
a reprobe, which terminates any ongoing wifi activity.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Aggregations hit latency so disable it by default on
low latency vifs for now. Enable control over this behavior and
allow control over the max frames in an AMPDU in low latency
vifs via debugfs.
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
In order to make debugging easier, add an entry to export the
ps_disabled value via debugfs. To make usage of the
debugfs_create_*() function easier, change the ps_disabled element to
u8.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
With a significant number of deployed APs, enabling uAPSD leads to the
AP never using aggregation sessions (likely due to the complexities
involved in handling uAPSD in those.) This obviously results in a large
drop in throughput with such APs.
On the other hand, uAPSD can result in some power consumption benefits,
but for now just disable it to get performance with affected APs back
up.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
1. the base_address limitation was wrong, address can be bigger than
0x80C000
2. the ucode data_struct changed.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Add Marker command.
The marker command send the ucode the time of sending the command in
milliseconds since 1970-01-01 00:00:00 UTC, in addition to other metatdata.
The ucode inserts this information into the usniffer logs, and returns the GP2
time stamp inside the command response.
Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If we're manually testing the CT kill functionality via debugfs, we
shouldn't schedule the work to recheck the temperature after the
ct_kill_duration period has passed.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Since we can't read the actual temperature when the firmware is
running, just set the temperature to 0 when the test is disabled and
disable CT Kill if it was enabled.
Additionally, since we rely on iwl_mvm_tt_handler() to exit CT kill
when in test mode, call iwl_mvm_exit_ctkill() in that function if the
temperature is low again. Also make the iwl_mvm_enter_ctkill() and
iwl_mvm_exit_ctkill() return if called when not necessary anymore
(e.g. when iwl_mvm_exit_ctkill() is called when we're not in CT-kill).
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Performance is less an issue in P2P and reliability
is critical. Enable protection always for P2P.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
By default, when uapsd is not used, the ucode uses
null data packet to exit power-save and get then
pending frames.
However, some tests require the explicit usage of ps-poll.
Allow setting use_ps_poll power option (through debugfs)
to configure the ucode to use ps-poll instead.
The ucode configuration is done by setting the advanced-pm
flag while setting all the ACs to non-upasd mode.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This allows to force the GO to use protection and enhances
the reliability of the link.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This allows to leave a frame in the Tx Fifo which allows
the firmware to try to enter burst mode.
The end result of this is a better latency since the
firmware utilises the TxOP better.
Also limit the AMPDU size to the limit set in the ADDBA
response. This doesn't change much since the AMPDU size
was limited by the configuration of the hardware scheduler,
but here we add a software limit by the mean of the link
quality command.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Add ability to set the NIC's temperature and ignore the actual temperature
that the FW supplies.
Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The CONFIG_IWLDVM and CONFIG_IWLMVM currently have a
"depends on m" as its requirement forcing it to be build
as module. This is not needed and thus just remove it.
Fixes: ae7486a2b7 ("iwlwifi: fix Kconfig issues")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
[Squashed 2 commites for MVM and DVM]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This adds one more ACPI ID of a Broadcom bluetooth chip.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When a device driver is unloaded local->interfaces
list is cleared. If there was more than 1
interface running and connected (bound to a
chanctx) then chantype recalc was called and it
ended up with compat being NULL causing a call
trace warning.
Warn if compat becomes NULL as a result of
incompatible bss_conf.chandef of interfaces bound
to a given channel context only.
The call trace looked like this:
WARNING: CPU: 2 PID: 2594 at /devel/src/linux/net/mac80211/chan.c:557 ieee80211_recalc_chanctx_chantype+0x2cd/0x2e0()
Modules linked in: ath10k_pci(-) ath10k_core ath
CPU: 2 PID: 2594 Comm: rmmod Tainted: G W 3.16.0-rc1+ #150
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
0000000000000009 ffff88001ea279c0 ffffffff818dfa93 0000000000000000
ffff88001ea279f8 ffffffff810514a8 ffff88001ce09cd0 ffff88001e03cc58
0000000000000000 ffff88001ce08840 ffff88001ce09cd0 ffff88001ea27a08
Call Trace:
[<ffffffff818dfa93>] dump_stack+0x4d/0x66
[<ffffffff810514a8>] warn_slowpath_common+0x78/0xa0
[<ffffffff81051585>] warn_slowpath_null+0x15/0x20
[<ffffffff818a407d>] ieee80211_recalc_chanctx_chantype+0x2cd/0x2e0
[<ffffffff818a3dda>] ? ieee80211_recalc_chanctx_chantype+0x2a/0x2e0
[<ffffffff818a4919>] ieee80211_assign_vif_chanctx+0x1a9/0x770
[<ffffffff818a6220>] __ieee80211_vif_release_channel+0x70/0x130
[<ffffffff818a6dd3>] ieee80211_vif_release_channel+0x43/0xb0
[<ffffffff81885f4e>] ieee80211_stop_ap+0x21e/0x5a0
[<ffffffff8184b9b5>] __cfg80211_stop_ap+0x85/0x520
[<ffffffff8181c188>] __cfg80211_leave+0x68/0x120
[<ffffffff8181c268>] cfg80211_leave+0x28/0x40
[<ffffffff8181c5f3>] cfg80211_netdev_notifier_call+0x373/0x6b0
[<ffffffff8107f965>] notifier_call_chain+0x55/0x110
[<ffffffff8107fa41>] raw_notifier_call_chain+0x11/0x20
[<ffffffff816a8dc0>] call_netdevice_notifiers_info+0x30/0x60
[<ffffffff816a8eb9>] __dev_close_many+0x59/0xf0
[<ffffffff816a9021>] dev_close_many+0x81/0x120
[<ffffffff816aa1c5>] rollback_registered_many+0x115/0x2a0
[<ffffffff816aa3a6>] unregister_netdevice_many+0x16/0xa0
[<ffffffff8187d841>] ieee80211_remove_interfaces+0x121/0x1b0
[<ffffffff8185e0e6>] ieee80211_unregister_hw+0x56/0x110
[<ffffffffa0011ac4>] ath10k_mac_unregister+0x14/0x60 [ath10k_core]
[<ffffffffa0014fe7>] ath10k_core_unregister+0x27/0x40 [ath10k_core]
[<ffffffffa003b1f4>] ath10k_pci_remove+0x44/0xa0 [ath10k_pci]
[<ffffffff81373138>] pci_device_remove+0x28/0x60
[<ffffffff814cb534>] __device_release_driver+0x64/0xd0
[<ffffffff814cbcc8>] driver_detach+0xb8/0xc0
[<ffffffff814cb23a>] bus_remove_driver+0x4a/0xb0
[<ffffffff814cc697>] driver_unregister+0x27/0x50
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
According to RCU_INIT_POINTER()'s block comment 3.a, it can be used if
"3. The referenced data structure has already been exposed to readers either
at compile time or via rcu_assign_pointer() -and-
a. You have not made -any- reader-visible changes to this structure since
then".
This case fulfills the conditions above because between the rcu_dereference()
call (cvif = rcu_dereference(ar->beacon_iter);) and the rcu_assign_pointer()
call there is no update of the "cvif" variable.
Therefore, this patch makes the replacement.
The following Coccinelle semantic patch was used:
@@
identifier v;
@@
v = rcu_dereference(...);
... when != rcu_dereference(...);
when != v = ...;
when != (<+...v...+>)++;
when != \(memcpy\|memset\)(...);
(
- rcu_assign_pointer
+ RCU_INIT_POINTER
(..., v);
|
if(...) {
... when != v = ...;
- rcu_assign_pointer
+ RCU_INIT_POINTER
(..., v);
... when any
}
)
Because there are cases where between a “rcu_dereference()” call and a
“rcu_assign_pointer()” call might be updates of the value that interests us,
the Coccinelle semantic patch ignores them and replaces with
"RCU_INIT_POINTER()" only when the update is not happening.
Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Setup the channel context correctly. Not doing this was
causing beacon loss in a P2P-GO/STA concurrent setup.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
If a new context is being added in addition to the current one,
then send the ASSIGN event to abort a running scan since
the addition of a context is usually followed by VIF
assignment and further operations.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
