openwrt/staging/blogic.git
8 years agomwifiex: change ap and station interface limits
Shengzhen Li [Mon, 14 Dec 2015 12:15:02 +0000 (04:15 -0800)]
mwifiex: change ap and station interface limits

ap/station interface limit has been changed to allow
creating maximum 3 interfaces.

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoMerge tag 'iwlwifi-next-for-kalle-2015-12-21' of https://git.kernel.org/pub/scm/linux...
Kalle Valo [Tue, 29 Dec 2015 16:44:19 +0000 (18:44 +0200)]
Merge tag 'iwlwifi-next-for-kalle-2015-12-21' of https://git./linux/kernel/git/iwlwifi/iwlwifi-next

* Make scan parameters low latency aware (Avi Stern)
* Fix in the NL80211_FEATURE_FULL_AP_CLIENT_STATE state case (Ayala)
* Fix enable injection mode (Chaya Rachel)
* Various cleanups (Dan / Julia / myself)
* Allow to stay more time on popular channels (David Spinadel)
* Bug fixes for D0i3 (Eliad / Luca)
* Fixes for GO uAPSD (myself)
* Start of TSO support (myself)
* Rate control bug fixes (Eyal / Gregory)
* Start the work on 9000 devices (Johannes / Sara / Oren)
* Start the work on a new Tx queue allocation model (Liad)
* Debug infrastructure enhancements (Golan)

8 years agoiwlwifi: bail out in case of bad trans state
Eliad Peller [Thu, 17 Dec 2015 11:02:56 +0000 (13:02 +0200)]
iwlwifi: bail out in case of bad trans state

In case of bad trans state (i.e. fw is not loaded) bail
out immediately instead of calling the trans, which might
not be fully initialized yet.

Also add WARN_ON_ONCE to help debugging where the errorneous
call is coming from.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: fix printf specifier
Emmanuel Grumbach [Thu, 17 Dec 2015 08:41:49 +0000 (10:41 +0200)]
iwlwifi: fix printf specifier

Smatch warned about a bad specifier being used. Fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: remove unused parameter from grab_nic_access
Emmanuel Grumbach [Thu, 17 Dec 2015 09:55:13 +0000 (11:55 +0200)]
iwlwifi: remove unused parameter from grab_nic_access

All the callers used silent = false.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: update key params on d0i3 entrance/exit
Eliad Peller [Wed, 11 Nov 2015 15:23:59 +0000 (17:23 +0200)]
iwlwifi: update key params on d0i3 entrance/exit

In order to let the fw do offloading properly, we need
to provide various key data (e.g. PN).

Configure the params on d0i3 entrance, and update them
back on d0i3 exit.

Since d3 code is now called in d0i3 which requires runtime
pm only, make d3.0 depend on CONFIG_PM (rather than
CONFIG_PM_SLEEP), and add required #ifdefs and wrappers
where needed, so both CONFIG_PM=n and CONFIG_PM_RUNTIME=n
configurations will build correctly.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: Change number of associated stations when station becomes associated
Ayala Beker [Tue, 15 Dec 2015 22:32:07 +0000 (00:32 +0200)]
iwlwifi: mvm: Change number of associated stations when station becomes associated

Currently, the number of associated stations gets updated when adding
a new station or removing it. This is incorrect as it's possible that
a station was inserted before it was associated
Fix this by increasing/decreasing ap_assoc_sta_count whenever
a station transitions in/out the associated state.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: Update PCI IDs for 8000 and 9000 series
Oren Givon [Thu, 17 Dec 2015 11:44:06 +0000 (13:44 +0200)]
iwlwifi: Update PCI IDs for 8000 and 9000 series

A new PCI IDs update to the 8000 and 9000 series.

type=feature

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: dump more registers upon error
Emmanuel Grumbach [Wed, 16 Dec 2015 11:42:17 +0000 (13:42 +0200)]
iwlwifi: mvm: dump more registers upon error

These registers can help to debug PHY issues. Since this
adds a significant amount of work to the debug collection
phase, dump the periphery registers only if the firmware
is stopped.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: infrastructure for frame-release message
Sara Sharon [Tue, 1 Dec 2015 11:48:18 +0000 (13:48 +0200)]
iwlwifi: mvm: infrastructure for frame-release message

Incoming hardware will send frame release notifications to
the reorder buffer in order to update with the BA session
status and up to date NSSN.
This patch enables the API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: add 9000 series RX processing
Johannes Berg [Thu, 3 Sep 2015 12:56:10 +0000 (14:56 +0200)]
iwlwifi: mvm: add 9000 series RX processing

Convert the convert the new infrastructure added by previous
patches to actually use the new RX descriptor layout.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: change iwl_mvm_get_key_sta_id() to return the station
Johannes Berg [Fri, 11 Dec 2015 08:36:10 +0000 (09:36 +0100)]
iwlwifi: mvm: change iwl_mvm_get_key_sta_id() to return the station

The code in iwl_mvm_update_tkip_key() is now pretty much duplicated
with the code in iwl_mvm_get_key_sta_id() doing the station ID lookup
again after it was already done. Change iwl_mvm_get_key_sta_id() to
iwl_mvm_get_key_sta(), returning the mvm_sta pointer, to allow that
duplicate code to be removed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: Add a station in monitor mode
Chaya Rachel Ivgi [Thu, 3 Dec 2015 13:51:46 +0000 (15:51 +0200)]
iwlwifi: mvm: Add a station in monitor mode

Currently when creating a new vif in monitor mode the driver doesn't
allocate a specific station. This causes that in the situation that
tx traffic is injected, the tx queues are not scheduled,
with the result of a TFD queue hang.
Fix that by allocating a station and ensuring its tx queues
are scheduled.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=104591

Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: add extended dwell time
David Spinadel [Sun, 22 Nov 2015 14:37:36 +0000 (16:37 +0200)]
iwlwifi: mvm: add extended dwell time

When doing active scan on crowded channels we are likely to miss probe
responses due to collisions. To overcome this issue we use an extended
dwell time on channels 1, 6 and 11; this dwell time is set to 100.

In case of fragmented scan extended dwell time is the maximum out of
channel time - 44 msec. Fragmented active scan will be addressed later.

Extended dwell time isn't used in sched scan or p2p find.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: small update in the firmware API
Emmanuel Grumbach [Wed, 16 Dec 2015 09:26:09 +0000 (11:26 +0200)]
iwlwifi: mvm: small update in the firmware API

Small change in firmware API, no functional change.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: support description for user triggered fw dbg collection
Golan Ben-Ami [Mon, 30 Nov 2015 12:30:21 +0000 (14:30 +0200)]
iwlwifi: mvm: support description for user triggered fw dbg collection

Add to the user triggered fw debug collection support for describing
the reason of the trigger.
This could be useful for identifying a dump by a unique id, passed as
a description.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: enable L3 filtering
Sara Sharon [Thu, 19 Nov 2015 11:12:15 +0000 (13:12 +0200)]
iwlwifi: mvm: enable L3 filtering

Firmware will support filtering multicast L3 packets.
The L3 filtering is configured by the WOWLAN_CONFIG command.
All flags should be enabled by default.
Older firmware is not affected as it does not look into
this field.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: refactor the way fw_key_table is handled
Luca Coelho [Tue, 10 Nov 2015 23:06:17 +0000 (01:06 +0200)]
iwlwifi: mvm: refactor the way fw_key_table is handled

Instead of keeping the fw_key_table bits set when the keys are removed
(i.e. in D3 entry or HW_RESTART flows), clear them and set them again
only when the keys have been successfully re-added.  This makes the
bitmask more closely tied to the actual firmware programming.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: 9000: increase the number of queues
Emmanuel Grumbach [Wed, 16 Dec 2015 08:50:03 +0000 (10:50 +0200)]
iwlwifi: 9000: increase the number of queues

9000 family devices have 31 queues.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: pcie: build an A-MSDU using TSO core
Emmanuel Grumbach [Sun, 18 Oct 2015 06:31:24 +0000 (09:31 +0300)]
iwlwifi: pcie: build an A-MSDU using TSO core

When the op_mode sends an skb whose payload is bigger than
MSS, PCIe will create an A-MSDU out of it. PCIe assumes
that the skb that is coming from the op_mode can fit in one
A-MSDU. It is the op_mode's responsibility to make sure
that this guarantee holds.

Additional headers need to be built for the subframes.
The TSO core code takes care of the IP / TCP headers and
the driver takes care of the 802.11 subframe headers.

These headers are stored on a per-cpu page that is re-used
for all the packets handled on that same CPU. Each skb
holds a reference to that page and releases the page when
it is reclaimed. When the page gets full, it is released
and a new one is allocated.

Since any SKB that doesn't go through the fast-xmit path
of mac80211 will be segmented, we can assume here that the
packet is not WEP / TKIP and has a proper SNAP header.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: clear ieee80211_tx_info->driver_data in the op_mode
Emmanuel Grumbach [Mon, 26 Oct 2015 13:39:22 +0000 (15:39 +0200)]
iwlwifi: clear ieee80211_tx_info->driver_data in the op_mode

The transport will need to use the info->driver_data
pointers. Since the op_mode has this memory hot in cache,
clear it there.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: pcie: re-organize code towards TSO
Emmanuel Grumbach [Wed, 14 Oct 2015 19:10:50 +0000 (22:10 +0300)]
iwlwifi: pcie: re-organize code towards TSO

The code that handles the TBs that contain the WiFi payload
will be changed for TSO. Move the current code into a
separate function.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: prepare the code towards TSO implementation
Emmanuel Grumbach [Wed, 14 Oct 2015 11:16:35 +0000 (14:16 +0300)]
iwlwifi: mvm: prepare the code towards TSO implementation

Differentiate between the cases where the skb is a large
send and the other cases.
Advertise TSO even if, at this stage, skb_gso_segment will
be called and it will do all the work.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: pcie: allow to pretend to have Tx CSUM for debug
Emmanuel Grumbach [Wed, 21 Oct 2015 06:00:07 +0000 (09:00 +0300)]
iwlwifi: pcie: allow to pretend to have Tx CSUM for debug

Allow to configure the driver to pretend to have TX CSUM
offload support. This will be useful to test the TSO flows
that will come in further patches.
This configuration is disabled by default.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: change the Intel Wireless email address
Emmanuel Grumbach [Tue, 17 Nov 2015 13:39:56 +0000 (15:39 +0200)]
iwlwifi: change the Intel Wireless email address

ilw@linux.intel.com is not available anymore.
linuxwifi@intel.com should be used instead.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoMerge tag 'iwlwifi-for-kalle-2015-12-16' into next
Emmanuel Grumbach [Sun, 20 Dec 2015 12:48:08 +0000 (14:48 +0200)]
Merge tag 'iwlwifi-for-kalle-2015-12-16' into next

* don't load firmware that won't exist for 7260
* fix RCU splat

8 years agossb: pick SoC invariants code from MIPS BCM47xx arch
Rafał Miłecki [Wed, 9 Dec 2015 22:36:51 +0000 (23:36 +0100)]
ssb: pick SoC invariants code from MIPS BCM47xx arch

There is code in ssb fetching "invariants" that is basically a set of
board specific data. Every host requires its own implementation of
reading function. In ssb we have support for PCI, PCMCIA & SDIO.
For some (historical?) reason code reading "invariants" for SoC was
placed in arch code and provided by a callback. This is not needed
nowadays, so lets move that into ssb. This way we keep all "invariants"
functions in a single module making code cleaner.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoMerge ath-next from ath.git
Kalle Valo [Wed, 16 Dec 2015 14:28:20 +0000 (16:28 +0200)]
Merge ath-next from ath.git

Major changes:

ath9k

* add random number generator support (CONFIG_ATH9K_HWRNG)

8 years agoiwlwifi: dvm: fix compare_const_fl.cocci warnings
Julia Lawall [Fri, 27 Nov 2015 16:10:58 +0000 (17:10 +0100)]
iwlwifi: dvm: fix compare_const_fl.cocci warnings

Move constants to the right of binary operators.

Generated by: scripts/coccinelle/misc/compare_const_fl.cocci

type=cleanup

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: change protocol offload flows
Sara Sharon [Thu, 19 Nov 2015 09:53:49 +0000 (11:53 +0200)]
iwlwifi: mvm: change protocol offload flows

RFC4862 states that "In all cases, a node MUST NOT respond to
a Neighbor Solicitation for a tentative address".
Currently the driver configures the NS offload and does not wait
for address to become permanent, thus violating the RFC.
Just removing the address from the address list is not good enough
for all cases, since the NS messages are needed for the duplicate
address detection and should not be discarded.

For d0i3 disable NS offload. Put tentative address in the address
list so the NS packet will not be filtered out by ucode.
For D3 the platform will not wake from NS packets - so enable
NS offload while removing the tentative address from the list.

Given that now NS offload might be disabled, and that the ucode
uses the IP data for other puroposes (L3 filtering) add two
independent flags indicating if IPv4\IPv6 data is valid.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: expose fw usniffer mode to more utilities
Golan Ben-Ami [Sun, 30 Aug 2015 14:41:36 +0000 (17:41 +0300)]
iwlwifi: expose fw usniffer mode to more utilities

Today, in order to configure fw in usniffer mode, the ucode
must have the corresponding tlv, which is revealed to the driver
while parsing the ucode.

Expose the mode of the usniffer to other utilities in the driver
(other than the ucode parser) by passing back a pointer to the value.
This can be very useful for allowing configuring the fw dbg data
using an external configuration file, because this configuration
depends on the fw usniffer mode.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoath10k: allow Mesh Point to install peer security key
Peter Oh [Thu, 3 Dec 2015 17:50:55 +0000 (09:50 -0800)]
ath10k: allow Mesh Point to install peer security key

Mesh Point requires peer security key install when running
in secured mode since it's a type of peer links, otherwise peer
link will be removed due to key install failure.

MFP feature set is required to run Mesh in secured mode and
QCA988X firmware, 10.2.4.70.14-2 and above, is the only one
supporting secured Mesh at this moment.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoiwlwifi: mvm: protect RCU dereference in iwl_mvm_get_key_sta_id
Johannes Berg [Fri, 11 Dec 2015 08:06:25 +0000 (09:06 +0100)]
iwlwifi: mvm: protect RCU dereference in iwl_mvm_get_key_sta_id

Properly protect the RCU dereference in iwl_mvm_get_key_sta_id() when
coming from iwl_mvm_update_tkip_key() which cannot hold the mvm->mutex
by moving the call into the RCU critical section.
Modify the check to use rcu_dereference_check() to permit this.

Fixes: 9513c5e18a0d ("iwlwifi: mvm: Avoid dereferencing sta if it was already flushed")
Reported-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: separate firmware version for 7260 devices
Johannes Berg [Thu, 3 Dec 2015 16:26:59 +0000 (17:26 +0100)]
iwlwifi: separate firmware version for 7260 devices

The 7260 devices aren't going to be updated for completely new
firmware versions any more (only bugfixes), and haven't been
since API version 17. Encode that in the data structures to
avoid trying to load FW images that will never exist.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: replace d0i3_mode and wowlan_d0i3 with more generic variables
Luca Coelho [Thu, 17 Sep 2015 20:44:14 +0000 (23:44 +0300)]
iwlwifi: replace d0i3_mode and wowlan_d0i3 with more generic variables

The d0i3_mode variable is used to distinguish between transports that
handle d0i3 entry during suspend by themselves (i.e. the slave
transports) and those which rely on the op_mode layer to do it.  The
reason why the former do it by themselves is that they need to
transition from d0i3 in runtime_suspend into d0i3 in system-wide
suspend and this transition needs to happen before the op_mode's
suspend flow is called.

The wowlan_d0i3 element is also a bit confusing, because it just
reflects the wowlan->any value for the trans to understand.  This is a
bit unclear in the code and not generic enough for future use.

To make it clearer and to generalize the platform power mode settings,
introduce two variables to indicate the platform power management
modes used by the transport.

Additionally, in order not to take too big a step in one patch, treat
this new variables semantically in the same way as the old d0i3_mode
element, introducing a iwl_mvm_enter_d0i3_on_suspend() function to
help with that.

This commit also adds the foundation for a new concept where the
firmware configuration state (i.e. D0, D3 or D0i3) is abstracted from
the platform PM mode we are in (i.e. runtime suspend or system-wide
suspend).

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: remove the vif parameter of iwl_mvm_configure_bcast_filter()
Eliad Peller [Thu, 3 Dec 2015 14:10:07 +0000 (16:10 +0200)]
iwlwifi: mvm: remove the vif parameter of iwl_mvm_configure_bcast_filter()

Remove the vif parameter of iwl_mvm_configure_bcast_filter()
as it's not being used.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: avoid d0i3 commands when no/init ucode is loaded
Eliad Peller [Thu, 10 Dec 2015 13:47:11 +0000 (15:47 +0200)]
iwlwifi: avoid d0i3 commands when no/init ucode is loaded

d0i3 commands are not supported in the init image, so take
a reference to ensure we don't enter d0i3 during init image,
and additional checks to prevent d0i3 commands when no
fw image is loaded.

Add a few WARN_ON_ONCE to the d0i3 enter/exit commands
to ensure we send d0i3 commands only when the normal
ucode is loaded.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: close the SP if we send fewer frames than expected in SP
Emmanuel Grumbach [Thu, 5 Nov 2015 08:32:31 +0000 (10:32 +0200)]
iwlwifi: mvm: close the SP if we send fewer frames than expected in SP

When we have holes in the BA window, there might be frames
that have been ACKed between the read and the right
pointers. This means that these frames won't be scheduled
again by the SCD and the firwmare won't see them.
This invalidates the number of frames we tell the firmware
to send. When we detect this case, tell mac80211 to close
the SP and to send an EOSP so that the firmware can be in
sync.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoMerge tag 'mac80211-next-for-davem-2015-12-07' into next
Emmanuel Grumbach [Sun, 13 Dec 2015 07:41:59 +0000 (09:41 +0200)]
Merge tag 'mac80211-next-for-davem-2015-12-07' into next

This pull request got a bit bigger than I wanted, due to
needing to reshuffle and fix some bugs. I merged mac80211
to get the right base for some of these changes.

 * new mac80211 API for upcoming driver changes: EOSP handling,
   key iteration
 * scan abort changes allowing to cancel an ongoing scan
 * VHT IBSS 80+80 MHz support
 * re-enable full AP client state tracking after fixes
 * various small fixes (that weren't relevant for mac80211)
 * various cleanups

8 years agoiwlwifi: update host command messages to new format
Sharon Dvir [Thu, 15 Oct 2015 15:18:09 +0000 (18:18 +0300)]
iwlwifi: update host command messages to new format

Host commands now have a group id, express this in printed messages.

Signed-off-by: Sharon Dvir <sharon.dvir@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: uninline iwl_trans_send_cmd
Emmanuel Grumbach [Tue, 1 Dec 2015 11:45:37 +0000 (13:45 +0200)]
iwlwifi: uninline iwl_trans_send_cmd

This function got too big to be inlined. Uninline it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: block the queues when we send ADD_STA for uAPSD
Emmanuel Grumbach [Tue, 24 Nov 2015 12:55:18 +0000 (14:55 +0200)]
iwlwifi: block the queues when we send ADD_STA for uAPSD

We send an ADD_STA to instruct the firmware to release
frames despite the peer being in PS.
Since the ADD_STA command and the Tx frame that comes
immediately afterwards can be reordered by the DMA engine,
we need to block the Tx queues until the firmware replies
with the ADD_STA response.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: trans: support a callback for ASYNC commands
Emmanuel Grumbach [Tue, 24 Nov 2015 13:17:37 +0000 (15:17 +0200)]
iwlwifi: trans: support a callback for ASYNC commands

This allows the op_mode to request from the transport to
call a callback when an ASYNC commands is completed by
the firmware. The same callback will be called for all the
commands. Pass the command whose response triggers the
callback as a parameter to the callback itself.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: pcie: allow the op_mode to block the tx queues
Emmanuel Grumbach [Tue, 24 Nov 2015 11:24:24 +0000 (13:24 +0200)]
iwlwifi: pcie: allow the op_mode to block the tx queues

In certain flows (see next patches), the op_mode may need to
block the Tx queues for a short period. Provide an API for
that. The transport is in charge of counting the number of
times the queues are blocked since the op_mode may block the
queues several times in a row before unblocking them.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: check iwl_mvm_wowlan_config_key_params() return value
Eliad Peller [Sun, 15 Nov 2015 13:44:17 +0000 (15:44 +0200)]
iwlwifi: mvm: check iwl_mvm_wowlan_config_key_params() return value

commit 9a4c830007817e ("iwlwifi: mvm: refactor d3 key
update functions") refactored some code into
iwl_mvm_wowlan_config_key_params() function, but the
return value was never checked, and not all the function
flows returned valid values. fix it.

Fixes: ac8ef0ce38de ("iwlwifi: mvm: refactor d3 key update functions")
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: cleanup roc te on restart cleanup
Eliad Peller [Wed, 9 Dec 2015 14:33:20 +0000 (16:33 +0200)]
iwlwifi: mvm: cleanup roc te on restart cleanup

iwl_mvm_restart_cleanup() calls ieee80211_remain_on_channel_expired()
on cleanup, but it doesn't clean the actual roc time
events, resulting in failure of further ROC attempts.

Refactor iwl_mvm_stop_roc() a bit, and add a new function
to only cleanup the roc time events (without sending further
commands).

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: remove an extra tab
Dan Carpenter [Wed, 9 Dec 2015 10:26:08 +0000 (13:26 +0300)]
iwlwifi: mvm: remove an extra tab

Smatch prints a static checker warning here:

    drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c:386 iwl_dump_prph()
    warn: curly braces intended?

Curly braces are NOT intended, the extra tab was added by mistake in
commit 1a616dd2f171 ('iwlwifi: dump prph registers in a common place
for all transports').

type=cleanup

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: dvm: advertise NETIF_F_SG
Johannes Berg [Fri, 17 Apr 2015 14:39:12 +0000 (16:39 +0200)]
iwlwifi: dvm: advertise NETIF_F_SG

If the transport supports it, advertise NETIF_F_SG to mac80211 to
be able to use frag SKBs. This will already improve performance by
allowing software GSO to be used.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: advertise NETIF_F_SG
Johannes Berg [Fri, 17 Apr 2015 14:39:12 +0000 (16:39 +0200)]
iwlwifi: mvm: advertise NETIF_F_SG

If the transport supports it, advertise NETIF_F_SG to mac80211 to
be able to use frag SKBs. This will already improve performance by
allowing software GSO to be used.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: rs: fix a potential out of bounds access
Eyal Shapira [Thu, 19 Nov 2015 16:37:31 +0000 (18:37 +0200)]
iwlwifi: mvm: rs: fix a potential out of bounds access

Klocwork pointed these out. There is a theoretical possibility
that rate->index might be set to IWL_RATE_INVALID (15).
This could trigger an out of bounds access on ht_vht_rates or
legacy_rates arrays. Fix it by adding some checks.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: configure scheduled scan according to traffic conditions
Avraham Stern [Thu, 26 Nov 2015 09:22:33 +0000 (11:22 +0200)]
iwlwifi: mvm: configure scheduled scan according to traffic conditions

Change scan configuration (dwell time, suspend time etc.) according
to traffic conditions. This is useful for scans that are managed by
the FW (e.g. scheduled scan).

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: set default new STA as non-aggregated
Liad Kaufman [Thu, 24 Sep 2015 08:44:12 +0000 (10:44 +0200)]
iwlwifi: mvm: set default new STA as non-aggregated

When sending the first ADD_STA HCMD for a STA, the %add_modify
field indicates an addition of a STA and not a modification
of one. In such a case, all fields of the HCMD are used to
initialize the corresponding fields in the FW, regardless of
what bits are set in %modify_mask.

Set the %tid_disable_tx field to mvm_sta->tid_disable_agg in
iwl_mvm_sta_send_to_fw(). If the STA is only updated this will
have no effect, but if it is added - it will make sure the
STA starts with the correct queues - if any - configured as
non-aggregated by default (until told otherwise).

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: add an option to start rs from HT/VHT rates
Gregory Greenman [Tue, 24 Nov 2015 17:13:27 +0000 (19:13 +0200)]
iwlwifi: mvm: add an option to start rs from HT/VHT rates

Extend the configurable option of setting initial rate to RSSI based.
Make the initial rate to be set to VHT/HT SISO or legacy depending on
the AP capabilities.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoath9k: fix inconsistent indenting on return statement
Colin Ian King [Tue, 8 Dec 2015 23:49:31 +0000 (23:49 +0000)]
ath9k: fix inconsistent indenting on return statement

minor change, indenting is one tab out.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath9k: feeding entropy in kernel from ADC capture
Miaoqing Pan [Fri, 9 Oct 2015 09:06:45 +0000 (17:06 +0800)]
ath9k: feeding entropy in kernel from ADC capture

This patch is derived from
commit 6301566e0b2d ("ath9k: export HW random number generator"),

We evaluated the entropy of the ADC data on QCA9531, QCA9561, QCA955x,
and AR9340, and it has sufficient quality random data (at least 10 bits
and up to 22 bits of min-entropy for a 32-bit value). We conservatively
assume the min-entropy is 10 bits out of 32 bits. Thus, ATH9K_RNG_BUF_SIZE
is set to 320 (u32) i.e., 1.25 kilobytes of data is inserted to fill up
the pool as soon as the entropy counter becomes 896/4096 (set by random.c).
Since ADC was not designed to be a dedicated HW RNG, we do not want to bind
it to /dev/hwrng framework directly. This patch feeds the entropy directly
from the WiFi driver to the input pool. The ADC register output is only
used as a seed for the Linux entropy pool. No conditioning is needed,
since all the conditioning is performed by the pool itself.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath9k: fix AR_RX_FILTER for ar9462/ar9565 when rx stopped
Miaoqing Pan [Thu, 20 Aug 2015 01:21:38 +0000 (09:21 +0800)]
ath9k: fix AR_RX_FILTER for ar9462/ar9565 when rx stopped

When rx stopped, AR_RX_FILTER should be cleared, but in
ath9k_hw_setrxfilter(), ATH9K_RX_FILTER_CONTROL_WRAPPER will always
be set for ar9462/ar9565.

Fix this by moving the code in ath9k_hw_setrxfilter() to
ath_calcrxfilter().

Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath6kl: add log messages for firmware failure cases.
Ben Greear [Mon, 30 Nov 2015 23:01:48 +0000 (15:01 -0800)]
ath6kl: add log messages for firmware failure cases.

This gives a user a chance to know why a firmware load
is failing.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath6kl: fix tx/rx antenna reporting for 2x2 devices
Ben Greear [Mon, 30 Nov 2015 23:01:47 +0000 (15:01 -0800)]
ath6kl: fix tx/rx antenna reporting for 2x2 devices

My previous patch incorrectly reported the antenna
for 2x2 devices. It should be a mask instead of
a numeric count. This patch fixes that.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agowlcore/wl12xx: spi: fix oops on firmware load
Uri Mashiach [Thu, 10 Dec 2015 13:12:56 +0000 (15:12 +0200)]
wlcore/wl12xx: spi: fix oops on firmware load

The maximum chunks used by the function is
(SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE + 1).
The original commands array had space for
(SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) commands.
When the last chunk is used (len > 4 * WSPI_MAX_CHUNK_SIZE), the last
command is stored outside the bounds of the commands array.

Oops 5 (page fault) is generated during current wl1271 firmware load
attempt:

root@debian-armhf:~# ifconfig wlan0 up
[  294.312399] Unable to handle kernel paging request at virtual address
00203fc4
[  294.320173] pgd = de528000
[  294.323028] [00203fc4] *pgd=00000000
[  294.326916] Internal error: Oops: 5 [#1] SMP ARM
[  294.331789] Modules linked in: bnep rfcomm bluetooth ipv6 arc4 wl12xx
wlcore mac80211 musb_dsps cfg80211 musb_hdrc usbcore usb_common
wlcore_spi omap_rng rng_core musb_am335x omap_wdt cpufreq_dt thermal_sys
hwmon
[  294.351838] CPU: 0 PID: 1827 Comm: ifconfig Not tainted
4.2.0-00002-g3e9ad27-dirty #78
[  294.360154] Hardware name: Generic AM33XX (Flattened Device Tree)
[  294.366557] task: dc9d6d40 ti: de550000 task.ti: de550000
[  294.372236] PC is at __spi_validate+0xa8/0x2ac
[  294.376902] LR is at __spi_sync+0x78/0x210
[  294.381200] pc : [<c049c760>]    lr : [<c049ebe0>]    psr: 60000013
[  294.381200] sp : de551998  ip : de5519d8  fp : 00200000
[  294.393242] r10: de551c8c  r9 : de5519d8  r8 : de3a9000
[  294.398730] r7 : de3a9258  r6 : de3a9400  r5 : de551a48  r4 :
00203fbc
[  294.405577] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 :
de3a9000
[  294.412420] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM
Segment user
[  294.419918] Control: 10c5387d  Table: 9e528019  DAC: 00000015
[  294.425954] Process ifconfig (pid: 1827, stack limit = 0xde550218)
[  294.432437] Stack: (0xde551998 to 0xde552000)

...

[  294.883613] [<c049c760>] (__spi_validate) from [<c049ebe0>]
(__spi_sync+0x78/0x210)
[  294.891670] [<c049ebe0>] (__spi_sync) from [<bf036598>]
(wl12xx_spi_raw_write+0xfc/0x148 [wlcore_spi])
[  294.901661] [<bf036598>] (wl12xx_spi_raw_write [wlcore_spi]) from
[<bf21c694>] (wlcore_boot_upload_firmware+0x1ec/0x458 [wlcore])
[  294.914038] [<bf21c694>] (wlcore_boot_upload_firmware [wlcore]) from
[<bf24532c>] (wl12xx_boot+0xc10/0xfac [wl12xx])
[  294.925161] [<bf24532c>] (wl12xx_boot [wl12xx]) from [<bf20d5cc>]
(wl1271_op_add_interface+0x5b0/0x910 [wlcore])
[  294.936364] [<bf20d5cc>] (wl1271_op_add_interface [wlcore]) from
[<bf15c4ac>] (ieee80211_do_open+0x44c/0xf7c [mac80211])
[  294.947963] [<bf15c4ac>] (ieee80211_do_open [mac80211]) from
[<c0537978>] (__dev_open+0xa8/0x110)
[  294.957307] [<c0537978>] (__dev_open) from [<c0537bf8>]
(__dev_change_flags+0x88/0x148)
[  294.965713] [<c0537bf8>] (__dev_change_flags) from [<c0537cd0>]
(dev_change_flags+0x18/0x48)
[  294.974576] [<c0537cd0>] (dev_change_flags) from [<c05a55a0>]
(devinet_ioctl+0x6b4/0x7d0)
[  294.983191] [<c05a55a0>] (devinet_ioctl) from [<c0517040>]
(sock_ioctl+0x1e4/0x2bc)
[  294.991244] [<c0517040>] (sock_ioctl) from [<c017d378>]
(do_vfs_ioctl+0x420/0x6b0)
[  294.999208] [<c017d378>] (do_vfs_ioctl) from [<c017d674>]
(SyS_ioctl+0x6c/0x7c)
[  295.006880] [<c017d674>] (SyS_ioctl) from [<c000f4c0>]
(ret_fast_syscall+0x0/0x54)
[  295.014835] Code: e1550004 e2444034 0a00007d e5953018 (e5942008)
[  295.021544] ---[ end trace 66ed188198f4e24e ]---

Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Move scheduled scan related interface layer structs
Hante Meuleman [Thu, 10 Dec 2015 12:43:11 +0000 (13:43 +0100)]
brcmfmac: Move scheduled scan related interface layer structs

All interface layer related to scheduled scan are moved in
fwil_types.h

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Change error print in debug print
Hante Meuleman [Thu, 10 Dec 2015 12:43:10 +0000 (13:43 +0100)]
brcmfmac: Change error print in debug print

The pcie suspend and resume routines contain some error prints,
which should have been debug prints.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: add 43242 device id for LG dongle
Arend van Spriel [Thu, 10 Dec 2015 12:43:09 +0000 (13:43 +0100)]
brcmfmac: add 43242 device id for LG dongle

Got a hint on IRC that a 43242 dongle for LG smart TV's works with
brcmfmac:

> Hello - I recently got a LG AN-WF500 wireless dongle for LG's SmartTVs.
> From the information I gathered it uses a Broadcom chipset BCM43242.
> The device should have been supported by brcmfmac kernel driver if it used
> USB IDs 0a5c:bd1f.
> My device however identifies itself as "ID 043e:3101 LG Electronics USA, Inc.".
> I then tried adding the USB ID to the driver with
> "echo "043e 3101" > /sys/bus/usb/drivers/brcmfmac/new_id" and it just works.
> The kernel provides the following information.
> [15958.851291] usb 3-1.1.3: new high-speed USB device number 53 using ehci-pci
> [15958.946723] usb 3-1.1.3: New USB device found, idVendor=043e, idProduct=3101
> [15958.946728] usb 3-1.1.3: New USB device strings: Mfr=1, Product=4, SerialNumber=3
> [15958.946731] usb 3-1.1.3: Product: Composite Wireless Adapter
> [15958.946733] usb 3-1.1.3: Manufacturer: Broadcom
> [15958.946735] usb 3-1.1.3: SerialNumber: 28458

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: fix waitqueue_active without memory barrier in brcmfmac driver
Kosuke Tatsukawa [Thu, 10 Dec 2015 12:43:08 +0000 (13:43 +0100)]
brcmfmac: fix waitqueue_active without memory barrier in brcmfmac driver

brcmf_msgbuf_ioctl_resp_wake() seems to be missing a memory barrier
which might cause the waker to not notice the waiter and miss sending a
wake_up as in the following figure.

  brcmf_msgbuf_ioctl_resp_wake     brcmf_msgbuf_ioctl_resp_wait
------------------------------------------------------------------------
if (waitqueue_active(&msgbuf->ioctl_resp_wait))
/* The CPU might reorder the test for
   the waitqueue up here, before
   prior writes complete */
                       /* wait_event_timeout */
        /* __wait_event_timeout */
 /* ___wait_event */
 prepare_to_wait_event(&wq, &__wait,
   state);
 if (msgbuf->ctl_completed)
 ...
msgbuf->ctl_completed = true;
 schedule_timeout(__ret))
------------------------------------------------------------------------

There are three other place in drivers/net/wireless/brcm80211/brcmfmac/
which have similar code.  The attached patch removes the call to
waitqueue_active() leaving just wake_up() behind.  This fixes the
problem because the call to spin_lock_irqsave() in wake_up() will be an
ACQUIRE operation.

I found this issue when I was looking through the linux source code
for places calling waitqueue_active() before wake_up*(), but without
preceding memory barriers, after sending a patch to fix a similar
issue in drivers/tty/n_tty.c  (Details about the original issue can be
found here: https://lkml.org/lkml/2015/9/28/849).

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Kosuke Tatsukawa <tatsu@ab.jp.nec.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Fix IBSS setup
Hante Meuleman [Thu, 10 Dec 2015 12:43:07 +0000 (13:43 +0100)]
brcmfmac: Fix IBSS setup

IBSS got broken over time. Disconnect events should not be given
for IBSS mode and connect events for IBSS need to have channel
information.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: no interface combination check for single interface
Arend van Spriel [Thu, 10 Dec 2015 12:43:06 +0000 (13:43 +0100)]
brcmfmac: no interface combination check for single interface

The interface combinations are intended for use-case in which the driver
handles multiple interface concurrently. This means that the combinations
do not need to be checked when there is only a single interface active.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Add support for PCIE 4350 revision 5 device
Hante Meuleman [Thu, 10 Dec 2015 12:43:05 +0000 (13:43 +0100)]
brcmfmac: Add support for PCIE 4350 revision 5 device

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Make TDLS a detectable feature
Hante Meuleman [Thu, 10 Dec 2015 12:43:04 +0000 (13:43 +0100)]
brcmfmac: Make TDLS a detectable feature

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Cleanup pmksa cache handling code
Hante Meuleman [Thu, 10 Dec 2015 12:43:03 +0000 (13:43 +0100)]
brcmfmac: Cleanup pmksa cache handling code

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Remove some redundant cfg80211 data
Hante Meuleman [Thu, 10 Dec 2015 12:43:02 +0000 (13:43 +0100)]
brcmfmac: Remove some redundant cfg80211 data

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Use local storage for ssid iovar
Hante Meuleman [Thu, 10 Dec 2015 12:43:01 +0000 (13:43 +0100)]
brcmfmac: Use local storage for ssid iovar

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Simplify scan timing configuration
Hante Meuleman [Thu, 10 Dec 2015 12:43:00 +0000 (13:43 +0100)]
brcmfmac: Simplify scan timing configuration

No need to pass timing configuration in local functions as they are
static anyway.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoiwlegacy: mark il_adjust_beacon_interval as noinline
Arnd Bergmann [Wed, 9 Dec 2015 16:42:41 +0000 (17:42 +0100)]
iwlegacy: mark il_adjust_beacon_interval as noinline

With the new optimized do_div() code, some versions of gcc
produce obviously incorrect code that leads to a link error
in iwlegacy/common.o:

drivers/built-in.o: In function `il_send_rxon_timing':
:(.text+0xa6b4d4): undefined reference to `____ilog2_NaN'
:(.text+0xa6b4f0): undefined reference to `__aeabi_uldivmod'

In a few thousand randconfig builds, I have seen this problem
a couple of times in this file, but never anywhere else in the
kernel, so we can try to work around this in the only file
that shows the behavior, by marking the il_adjust_beacon_interval
function as noinline, which convinces gcc to use the unoptimized
do_div() all the time.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortlwifi: fix memory leak for USB device
Peter Wu [Mon, 7 Dec 2015 00:07:31 +0000 (01:07 +0100)]
rtlwifi: fix memory leak for USB device

Free skb for received frames with a wrong checksum. This can happen
pretty rapidly, exhausting all memory.

This fixes a memleak (detected with kmemleak). Originally found while
using monitor mode, but it also appears during managed mode (once the
link is up).

Cc: stable@vger.kernel.org
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
ACKed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoprism54: fix compare_const_fl.cocci warnings
Julia Lawall [Mon, 7 Dec 2015 09:55:33 +0000 (10:55 +0100)]
prism54: fix compare_const_fl.cocci warnings

Move constants to the right of binary operators.

Generated by: scripts/coccinelle/misc/compare_const_fl.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: fix semicolon.cocci warnings
Julia Lawall [Sun, 6 Dec 2015 21:56:21 +0000 (22:56 +0100)]
mwifiex: fix semicolon.cocci warnings

Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcm80211: fix compare_const_fl.cocci warnings
Julia Lawall [Sun, 6 Dec 2015 06:03:26 +0000 (07:03 +0100)]
brcm80211: fix compare_const_fl.cocci warnings

Move constants to the right of binary operators.

Generated by: scripts/coccinelle/misc/compare_const_fl.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: correction in region code to country mapping
Amitkumar Karwar [Fri, 4 Dec 2015 14:13:07 +0000 (06:13 -0800)]
mwifiex: correction in region code to country mapping

EU is not a valid country in db.txt file. Hence regulatory_hint
returns failure if EEPROM provides region code as 0x30. Let's
use FR for 0x30.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: don't follow AP if country code received from EEPROM
Amitkumar Karwar [Fri, 4 Dec 2015 14:13:05 +0000 (06:13 -0800)]
mwifiex: don't follow AP if country code received from EEPROM

If device has already received country information from
EEPROM, we won't parse AP's country IE and download it to
firmware. We will also set regulatory flags to disable beacon
hints and ignore country IE.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: set regulatory info from EEPROM
Amitkumar Karwar [Fri, 4 Dec 2015 14:13:04 +0000 (06:13 -0800)]
mwifiex: set regulatory info from EEPROM

Driver gets country information from EEPROM during
initialization. We will call regulatory_hint to update
current regulatory domain.
As by default world regulatory domain is selected by
cfg80211, country '00' from EEPROM is ignored.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: handle start AP error paths correctly
Amitkumar Karwar [Fri, 4 Dec 2015 14:13:03 +0000 (06:13 -0800)]
mwifiex: handle start AP error paths correctly

It's been observed that even if firmware returns an error
for a configuration command, we go ahead and start AP.

This patch changes the command type from async to sync
so that threads waits for command response and return
failure start AP.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: parse adhoc start/join result
Amitkumar Karwar [Fri, 4 Dec 2015 14:13:02 +0000 (06:13 -0800)]
mwifiex: parse adhoc start/join result

Even if ADHOC start or join attempt is failed, these commands
are returned with success status by firmware. Actual connection
result is provided inside command response.

This patch parses the adhoc connection result and resets
connection state variables if connection is not successful.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoprism54: off by one BUG_ON() test
Dan Carpenter [Fri, 4 Dec 2015 13:19:49 +0000 (16:19 +0300)]
prism54: off by one BUG_ON() test

This code was supposed to trigger a BUG() if we truncate the output but
it's off by one so it allows one character to be truncated.  Really
drivers shouldn't call BUG_ON() and especially for something minor like
this so I've changed it to a WARN_ON().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agohostap: fix an error code in prism2_config()
Dan Carpenter [Fri, 4 Dec 2015 13:17:46 +0000 (16:17 +0300)]
hostap: fix an error code in prism2_config()

The current code returns success if prism2_init_local_data() fails, but
we want to return an error code.  Also we can remove the bogus
ret initializer because it is wrong and never used.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: remove an unneeded condition
Dan Carpenter [Fri, 4 Dec 2015 13:17:15 +0000 (16:17 +0300)]
mwifiex: remove an unneeded condition

We already know that "wep_key->key_length" is set so there is no need to
check again.  Also the last curly brace was indented too far.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoiwlegacy: cleanup end of il_send_add_sta()
Dan Carpenter [Fri, 4 Dec 2015 13:16:45 +0000 (16:16 +0300)]
iwlegacy: cleanup end of il_send_add_sta()

This code causes a static checker warning because we check for
"if (ret == 0)" but we have already had verified that was true.  Clean
it up a little.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agocw1200: remove some dead code
Dan Carpenter [Fri, 4 Dec 2015 13:15:23 +0000 (16:15 +0300)]
cw1200: remove some dead code

If the mode is NL80211_IFTYPE_UNSPECIFIED then we return success at the
start of the function so this condition is never true.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: only lock and unlock fws if fws is not null
Colin Ian King [Wed, 2 Dec 2015 11:45:10 +0000 (11:45 +0000)]
brcmfmac: only lock and unlock fws if fws is not null

There is a null ptr check for fws to set bcmc_credit_check, however,
there a lock and unlock on fws should only performed if fwts is
also not null to also avoid a potential null pointer deference.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agowlcore: split wl12xx/wl18xx sg parameters
Guy Mishol [Wed, 2 Dec 2015 08:28:22 +0000 (10:28 +0200)]
wlcore: split wl12xx/wl18xx sg parameters

Align to new wl18xx sg parameters.
This requires to split both wl12xx/wl18xx enumerators.

Signed-off-by: Guy Mishol <guym@ti.com>
Acked-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agochelsio: constify cmac_ops structures
Julia Lawall [Tue, 8 Dec 2015 20:42:09 +0000 (21:42 +0100)]
chelsio: constify cmac_ops structures

The cmac_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agobnx2x: remove rx_pkt/rx_calls
Eric Dumazet [Tue, 8 Dec 2015 18:28:30 +0000 (10:28 -0800)]
bnx2x: remove rx_pkt/rx_calls

These fields are updated but never read.
Remove the overhead.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agobnx2x: avoid soft lockup in bnx2x_poll()
Eric Dumazet [Tue, 8 Dec 2015 13:54:40 +0000 (05:54 -0800)]
bnx2x: avoid soft lockup in bnx2x_poll()

Under heavy TX load, bnx2x_poll() can loop forever and trigger
soft lockup bugs.

A napi poll handler must yield after one TX completion round,
risk of livelock is too high otherwise.

Bug is very easy to trigger using a debug build, and udp flood, because
of added cpu cycles in TX completion, and we do not receive enough
packets to break the loop.

Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agorhashtable: Remove unnecessary wmb for future_tbl
Herbert Xu [Tue, 8 Dec 2015 09:09:04 +0000 (17:09 +0800)]
rhashtable: Remove unnecessary wmb for future_tbl

The patch 9497df88ab5567daa001829051c5f87161a81ff0 ("rhashtable:
Fix reader/rehash race") added a pair of barriers.  In fact the
wmb is superfluous because every subsequent write to the old or
new hash table uses rcu_assign_pointer, which itself carriers a
full barrier prior to the assignment.

Therefore we may remove the explicit wmb.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'cxgb4-update-kconfig-and-fixes'
David S. Miller [Wed, 9 Dec 2015 03:43:15 +0000 (22:43 -0500)]
Merge branch 'cxgb4-update-kconfig-and-fixes'

Hariprasad Shenai says:

====================
Update Kconfig and some fixes for cxgb4

This series update Kconfig to add description for Chelsio's next
generation T6 family of adapters, also fixes ethtool stats alignment
and prevents simultaneous execution of service_ofldq thread, deals with
queue wrap around and adds some fl counters for debugging purpose and
device ID for new T5 adapters.

This patch series has been created against net-next tree and includes
patches on cxgb4 driver.

We have included all the maintainers of respective drivers. Kindly review
the change and let us know in case of any review comments.

Thanks

V2: Declare 'service_ofldq_running' as bool in Patch 4/7 ("cxgb4: prevent
    simultaneous execution of service_ofldq()") based on review comment
    by David Miller
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Adds PCI device id for new T5 adapters
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:17 +0000 (10:09 +0530)]
cxgb4: Adds PCI device id for new T5 adapters

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Add FL DMA mapping error and low counter
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:16 +0000 (10:09 +0530)]
cxgb4: Add FL DMA mapping error and low counter

Add Free List DMA Mapping Errors to SGE Queue info for
Free Lists. Add Free List "Low" counter to count the number of times we
see the number of pointers that we _think_ the hardware sees in the
Free List below the Egress Threshold.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Deal with wrap-around of queue for Work request
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:15 +0000 (10:09 +0530)]
cxgb4: Deal with wrap-around of queue for Work request

The WR headers  may not fit within one descriptor.
So we need to deal with wrap-around here.

Based on original patch by Pranjal Joshi <pjoshi@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: prevent simultaneous execution of service_ofldq()
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:14 +0000 (10:09 +0530)]
cxgb4: prevent simultaneous execution of service_ofldq()

Change mutual exclusion mechanism to prevent multiple threads of
execution from running in service_ofldq() at the same time.  The old
mechanism used an implicit guard on the down-call path and none on the
restart path and wasn't working. This checking makes the mechanism
explicit and is much easier to understand as a result.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Use ACCES_ONCE macro to read queue's consumer index
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:13 +0000 (10:09 +0530)]
cxgb4: Use ACCES_ONCE macro to read queue's consumer index

Use helper macro ACCESS_ONCE() to load from the SGE status page
to prevent the compiler loading multiple times.

Based on original work by Mike Werner <werner@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4/cxgb4vf: update Kconfig file to include T6 adapter
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:12 +0000 (10:09 +0530)]
cxgb4/cxgb4vf: update Kconfig file to include T6 adapter

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Align rest of the ethtool get stats
Hariprasad Shenai [Tue, 8 Dec 2015 04:39:11 +0000 (10:09 +0530)]
cxgb4: Align rest of the ethtool get stats

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>