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Author SHA1 Message Date
Luca Coelho
dac4df1c5f iwlwifi: mvm: support version 7 of the SCAN_REQ_UMAC FW command
Newer firmware versions (such as iwlwifi-8000C-34.ucode) have
introduced an API change in the SCAN_REQ_UMAC command that is not
backwards compatible.  The driver needs to detect and use the new API
format when the firmware reports it, otherwise the scan command will
not work properly, causing a command timeout.

Fix this by adding a TLV that tells the driver that the new API is in
use and use the correct structures for it.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=197591

Fixes: d7a5b3e9e4 ("iwlwifi: mvm: bump API to 34 for 8000 and up")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-15 18:38:42 +02:00
Kalle Valo
b13b3cdfd7 iwlwifi updates
* Some new PCI IDs;
 * A bunch of cleanups;
 * The timers update by Kees;
 * Add more register dump call-sites;
 * A fix for a locking issue in the TX flush code;
 * Actual implementation of the TX flush code for A000;
 * An optimization to drop RX frames during restart to avoid BA issues;
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Merge tag 'iwlwifi-next-for-kalle-2017-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

iwlwifi updates

* Some new PCI IDs;
* A bunch of cleanups;
* The timers update by Kees;
* Add more register dump call-sites;
* A fix for a locking issue in the TX flush code;
* Actual implementation of the TX flush code for A000;
* An optimization to drop RX frames during restart to avoid BA issues;
2017-11-06 12:31:07 +02:00
David S. Miller
6e300769dc wireless-drivers-next patches for 4.15
Mostly fixes this time, but also few new features.
 
 Major changes:
 
 wil6210
 
 * remove ssid debugfs file
 
 rsi
 
 * add WOWLAN support for suspend, hibernate and shutdown states
 
 ath10k
 
 * add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
   where it's supported (QCA99x0 and QCA4019)
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Merge tag 'wireless-drivers-next-for-davem-2017-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.15

Mostly fixes this time, but also few new features.

Major changes:

wil6210

* remove ssid debugfs file

rsi

* add WOWLAN support for suspend, hibernate and shutdown states

ath10k

* add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
  where it's supported (QCA99x0 and QCA4019)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 18:07:50 +09:00
David S. Miller
2a171788ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Files removed in 'net-next' had their license header updated
in 'net'.  We take the remove from 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-04 09:26:51 +09:00
Shahar S Matityahu
364a1ab91d iwlwifi: drop RX frames during hardware restart
In case of a hardware restart the BA session data in HW is lost
so the reorder buffer simply passes the frames to mac80211 as is
as there is no NSSN set. Instead, we will drop these frames
before they reach the reorder buffer. mac80211 drops such frames anyway,
but we shouldn't rely on that. In addition it saves some
processing time

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Kees Cook
8cef5344b5 iwlwifi: mvm: Convert timers to use timer_setup()
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.

The RCU lifetime on baid_data is unclear, so this adds a direct copy of the
rcu_ptr passed to the original callback. It may be possible to improve this
to just use baid_data->mvm->baid_map[baid_data->baid] instead.

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Sara Sharon <sara.sharon@intel.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Luca Coelho
309c4848c0 iwlwifi: mvm: hold mutex when flushing in iwl_mvm_flush_no_vif()
The iwl_mvm_flush_tx_path() function sends a synchronous command to
the firmware.  When doing that, we must hold the mutex.  The
iwl_mvm_flush_no_vif() function was mistakenly not holding the mutex.
Fix it.

Fixes: 6110d9e5bd ("iwlwifi: mvm: Flush non STA TX queues")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Sara Sharon
06195639c6 iwlwifi: mvm: add missing implementation of flush for a000 devices
In the mac flush flow, we should flush all existing queues.
Since FW API for a000 devices is flush per RA-TID, simply
flush all stations with all tids.
From FW perspective, asking to flush a TID that doesn't have
a queue is valid, so we can just set all bits in the TID mask.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Sara Sharon
435d0827fe iwlwifi: mvm: refactor iwl_mvm_flush_no_vif
This function is very indented and hard to read.
Refactor it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Sara Sharon
cb8550e15b iwlwifi: fix multi queue notification for a000 devices
Currently we return early from sync_rx_queues for a000 devices.
This may cause, in case of a non-empty reorder buffer, a warning
later on since the RX queue isn't getting the notification to
empty it.
A better approach would be to send the notification for the default
queue only.
Do this hard coded for now, until we will have the API to enable
multi queue for a000 devices.

Fixes: bc02946964 ("iwlwifi: mvm: disable RX queue notification for a000 devices")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:09 +02:00
Emmanuel Grumbach
fb7eba711d iwlwifi: remove dead code for internal devices only
We had a bunch of code that was relevant for internal
devices only. Those devices are now being depreceated.
Kill all the now unneeded code.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Sara Sharon
14a1f85bdc iwlwifi: mvm: improve latency when there is a reorder timeout
When there is a reorder timeout, we may get to a situation
where we have the timeout latency for all the next 64 frames.
This happens since NSSN is behind for a while, and the driver
won't release the frames, since it is not allowed by NSSN.
As a result the frame is stored in the reorder buffer although
there is no hole, and released 100 ms later.
Add a direct comparison to the reorder buffer head, and release
immediately if possible.

For example:
Frame 0 is missed. We receive frame 1, and store it in the buffer.
After 100 ms, frame 1 is released and reorder buffer head is 2.
We then receive frame 2, with NSSN 0, and store it instead of
releasing it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Emmanuel Grumbach
82d2b9a626 iwlwifi: mvm: rs: remove the ANT C from the toogle antenna logic
We don't plan to have products with 3 antennas in the near
future. All the rest of the code follows the same
assumption as well.
Remove the support for antenna C from rs_toggle_ant.
When trying to toggle from ANT_B, this avoids to go through
ANT_C, discover that it doesn't exist and continue to ANT_A.
In MIMO, this avoids to do ANT_AB -> ANT_BC -> ANT_AC and
back to ANT_AB.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Liad Kaufman
5d39051a32 iwlwifi: mvm: reset seq num after restart
After a FW reset on A000 NICs, the driver doesn't
set the seq number when re-allocating the queues.
This in turn leads to a mismatch between the seq
number the driver thinks each frame has, and the
actual seq num given by the HW.

This especially causes issues with aggregations,
since the driver could be waiting to start an
aggregation and queue traffic from the mac80211
until then, when actually it shouldn't be waiting.

Fixes: 310181ec34 ("iwlwifi: move to TVQM mode")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:08 +02:00
Sara Sharon
0ec9257b0a iwlwifi: mvm: cleanup references to aggregation count limit
Currently the code is mixing defines and is inconsistent.
When enabling a queue, we usually configure the scheduler
with IWL_FRAME_LIMIT - 64.
When sending to firmware the rate scaling, we limit aggregation
to LINK_QUAL_AGG_FRAME_LIMIT_DEF - 63, due to a scheduler bug.
Given that, clean up the following:
- Fix a stray queue enablement with LINK_QUAL_AGG_FRAME_LIMIT_DEF.
- Change the comparison that tests if queue needs to be reconfigured
  to be compared directly to how it was configured.
  This also saves the redundant round down of the buffer size just
  for the sake of comparing it, making the code more readable.
- Better document gen2 logic

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:07 +02:00
Sara Sharon
b67ce55dbd iwlwifi: mvm: use RS macro instead of duplicating the code
There is a macro for converting TX response rate to a
rate scale value, use it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-11-03 11:56:07 +02:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Liad Kaufman
41fd2fec56 iwlwifi: mvm: add missing lq_color
In the compressed BA notif, the driver didn't parse out
the LQ color, so statistics for the rates tried were
always thrown out. Add it so it gets correctly used.

While at it, fix the name of the relevant field in the
struct.

Fixes: c46e7724bf ("iwlwifi: mvm: support new BA notification response")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:02:00 +03:00
Luca Coelho
3485e76e73 iwlwifi: define minimum valid address for umac_error_event_table in cfg
We now have two different minimum valid values for
umac_error_event_table.  To avoid hardcoding the minimum value in the
driver, add a value to cfg where it can be read from.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:01:52 +03:00
Luca Coelho
fb5b28469d iwlwifi: mvm: move umac_error_event_table validity check to where it's set
There's no point in checking the validity of the
umac_error_event_table pointer every time we generate a dump.  It's
cleaner to do so when we read the value, namely when we receive the
alive data.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:00:44 +03:00
Beni Lev
0e1be40a45 iwlwifi: mvm: allow reading UMAC error data from SMEM in A000 devices
Currently, UMAC error data reading is restricted to DCCM.
A000 NICs use SMEM for this data.

Signed-off-by: Beni Lev <beni.lev@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:00:44 +03:00
Johannes Berg
76f4a85e1d iwlwifi: mvm: pass baid_data to iwl_mvm_release_frames()
All callers of iwl_mvm_release_frames() already have the baid_data
pointer, so we don't need to (re)calculate it inside the function.
Just pass it instead.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:00:44 +03:00
Sara Sharon
3f1c4c5806 iwlwifi: mvm: remove duplicated fields in mvm reorder buffer
The reason station id and tid fields are both in baid data and
in the reorder buffer per queue is that we couldn't access the
baid_data in the reorder timer functions.
Now that we do some pointer math and access it anyway, those
fields can be removed.
This save some space and some code.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:00:43 +03:00
Johannes Berg
dfdddd92a5 iwlwifi: mvm: allocate reorder buffer according to need
Now that we may have up to 256 entries per reorder buffer, and possibly up
to 16 queues, we can use a LOT of memory for this (64k for each station).
Allocate it according to what we need, which is of course much less for HT
stations (only 16k at a max of 16 queues).

However, this comes at the expense of complicating the code a bit to
calculate the right entry structure to use for each frame.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-18 13:00:43 +03:00
Kalle Valo
0fac9e2dff Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
Mark Brown reported that there are conflicts in iwlwifi between the two trees
so fix those now.
2017-10-16 17:09:24 +03:00
Luca Coelho
f2abcfa6c8 iwlwifi: remove dflt_pwr_limit from the transport
The default power limit read from the SPLC method in ACPI doesn't
have anything to do with the transport and is only used in the opmode,
so we can remove it from the trans.  Additionally, this value is only
user when the opmode is starting, so we don't need to store it
anywhere.

Remove the dflt_pwr_limit element from the trans and move call to
iwl_acpi_get_pwr_limit() call to mvm.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:34 +03:00
Johannes Berg
42fa5e0e32 iwlwifi: mvm: warn on invalid statistics size
Getting the wrong statistics size is a problem, having a warning
will help us catch it quicker during firmware/driver development.
In released firmware/driver versions, we obviously make sure this
won't happen.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:33 +03:00
Luca Coelho
45f65569e0 iwlwifi: acpi: move function to get mcc into acpi code
The iwl_get_bios_mcc() function was in the iwl-nvm-parse.c file, but
it has nothing to do with the NVM.  Move it to fw/acpi.c and rename it
to iwl_acpi_get_mcc().

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:32 +03:00
Luca Coelho
d953cdb8ee iwlwifi: acpi: remove a couple of unnecessary ifdefs
Some of the #ifdef CONFIG_ACPI are not needed anymore, so they can be
removed.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:32 +03:00
Luca Coelho
2fa388cfeb iwlwifi: acpi: generalize iwl_mvm_sar_find_wifi_pkg()
Move this function to acpi.c, renaming it to iwl_acpi_get_wifi_pkg(),
because it can also be used with other methods (i.e. SPLC and WRDD).

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:29 +03:00
Luca Coelho
e7a3b8d879 iwlwifi: acpi: move ACPI-related definitions to acpi.h
The ACPI table size definitions were spread around the different files
that used them.  Move them all to a common place.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:29 +03:00
Luca Coelho
1c73acf58b iwlwifi: acpi: move ACPI method definitions to acpi.h
Instead of defining each method where they are used and re-defining
WIFI_DOMAIN in each one of them, move all the definitions to a central
place and define the domain only a single time.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:29 +03:00
Luca Coelho
813df5cef3 iwlwifi: acpi: add common code to read from ACPI
There are many places where the same process of invoking a method from
ACPI is used, causing a lot of duplicate code.  To improve this,
introduce a new function to get an ACPI object by invoking an ACPI
method that can be reused.

Additionally, since this function needs to be called when we only have
the trans, the opmode or the device, introduce a new debug macro that
gets the device as a parameter so it can be used in the new function.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:28 +03:00
Sara Sharon
417795a3f4 iwlwifi: mvm: change warning to warn_once()
In case there is a FW bug where the BAID value in the
metadata is not properly initialized we hit the warning for
every RX packet.
Change it to warn once and add elaborate message.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 15:22:28 +03:00
Emmanuel Grumbach
7a20bcceed iwlwifi: mvm: don't send identical PHY_CTXT_CMD
When we have an AP which supports HT and a single HT
station is connected, we change the min_width from
NL80211_CHAN_WIDTH_20_NOHT to NL80211_CHAN_WIDTH_20. This
of course has no implication on the channel width but still
sends a command to the firmware.
Remember the last width that was sent and refrain from
sending unnecessary commands to the firmware.

Sending a PHY_CTXT_CMD to the firmware has a cost since it
recalculates the presence on the medium and because of that
it closes the transmit queues for a short while.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 14:57:22 +03:00
Emmanuel Grumbach
528a542aa6 iwlwifi: mvm: support firmware debug trigger on frame reorder timeout
The trigger that collects data when a frame is released
because of the timer of the reordering buffer was not
implemented for 9000 devices.
Fix this.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 14:57:21 +03:00
Emmanuel Grumbach
d7b9bb69c9 iwlwifi: mvm: remove support for Link Quality Measurements
This was never used by any product. Remove it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 14:57:21 +03:00
David Spinadel
72cbb73e8a iwlwifi: mvm: Add new quota command API
New quota command adds a field indicating low latency
direction per quota.

A TLV API bit was added to indicate the new API.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 14:57:21 +03:00
Liad Kaufman
3669cd3192 iwlwifi: mvm: add dbgfs entry for fw info
Add a dbgfs entry for an easy way during runtime to
check what FW file was loaded, and get some general
FW-related data.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 14:57:20 +03:00
Chaya Rachel Ivgi
44fd09dad5 iwlwifi: nvm: set the correct offsets to 3168 series
The driver currently handles two NVM formats,
one for 7000 family and below, and one for 8000 family and above.
The 3168 series uses something in between,
so currently the driver uses incorrect offsets for it.
Fix the incorrect offsets.

Fixes: c4836b056d ("iwlwifi: Add PCI IDs for the new 3168 series")
Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 13:59:44 +03:00
Luca Coelho
1442a9a9f2 iwlwifi: mvm: return -ENODATA when reading the temperature with the FW down
It seems that libsensors treats -EIO as a special non-recoverable
failure when it tries to read the temperature while the firmware is
not running.  To solve that, change the error code to a milder
-ENODATA.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=196941

Fixes: c221daf219 ("iwlwifi: mvm: add registration to thermal zone")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 13:59:44 +03:00
Shaul Triebitz
baf41bc35f iwlwifi: mvm: do not print security error in monitor mode
In monitor mode we are not expected to decrypt encrypted
packets (not having the keys).
Hence we are expected to get an unknown rx security status.
Keeping the print in monitor mode causes a print for each
captured packet flooding the dmesg.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06 13:59:44 +03:00
Sara Sharon
5f90472c00 iwlwifi: mvm: fix reorder buffer for 9000 devices
The condition to check if reorder buffer ran out of
space is faulty, as it takes into account only the
NSSN.
In case the head SN was too far behind the reorder
buffer should move forward, regardless of the NSSN
status.
This caused the driver to release packets out of order
in some scenarios.

Fixes: b915c10174 ("iwlwifi: mvm: add reorder buffer per queue")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:52:51 +03:00
Luca Coelho
d460f1fb83 iwlwifi: mvm: set status before calling iwl_mvm_send_cmd_status()
We always must set the status to what we consider success before
calling iwl_mvm_send_cmd_status() (also iwl_mvm_send_cmd_pdu_status()
which calls it).  Fix a few places where initialization is missing.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:50:30 +03:00
Luca Coelho
3f497de997 iwlwifi: mvm: initialize status in iwl_mvm_add_int_sta_common()
We always need to initialize the status argument to the success case
before calling iwl_mvm_send_cmd_status() or
iwl_mvm_send_cmd_pdu_status() (which calls the former) otherwise we
may get an uninitialized value back.  In this case, we use
ADD_STA_SUCCESS as success.

Fixes: 732d06e9d9 ("iwlwifi: mvm: add station before allocating a queue")
Reported by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:49:15 +03:00
Luca Coelho
61e7d91bcf iwlwifi: mvm: handle FIF_ALLMULTI when setting multicast addresses
We were ignoring the FIF_ALLMULTI flag when setting the multicast
addresses with MCAST_FILTER_CMD.  Check if this flag is set and enable
pass_all accordingly.  We also need to set the count to 0 if pass_all
is enable so we don't pass addresses to the firmware when not needed
(as doing so causes an assert).

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=196741

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:47:37 +03:00
Luca Coelho
97bce57bd7 iwlwifi: mvm: use IWL_HCMD_NOCOPY for MCAST_FILTER_CMD
The MCAST_FILTER_CMD can get quite large when we have many mcast
addresses to set (we support up to 255).  So the command should be
send as NOCOPY to prevent a warning caused by too-long commands:

WARNING: CPU: 0 PID: 9700 at /root/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/pcie/tx.c:1550 iwl_pcie_enqueue_hcmd+0x8c7/0xb40 [iwlwifi]
Command MCAST_FILTER_CMD (0x1d0) is too large (328 bytes)

This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=196743

Cc: stable@vger.kernel.org
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:44:39 +03:00
Avraham Stern
8458e48ac7 iwlwifi: mvm: wake the correct mac80211 queue
iwl_mvm_start_mac_queues() takes a bitmap of the queues to wake.
When deferred tx is purged, set the bit of the hw_queue so
the correct queue will be waken up.

Fixes: 7e39a00d59 ("iwlwifi: mvm: start mac queues when deferred tx frames are purged")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:44:09 +03:00
Naftali Goldstein
bd800e41a3 iwlwifi: mvm: change state when queueing agg start work
Add a new state to enum iwl_mvm_agg_state, which is used between
queueing the work that starts tx aggregations and actually starting that
work (changing to state IWL_AGG_STARTING).
This solves a race where ieee80211_start_tx_ba_session is called a
second time, before the work queued by the first run has a chance to
change the agg_state. In this case the second call to
ieee80211_start_tx_ba_session returns an error, and the fallback is to
abort the ba session start.

Fixes: 482e48440a ("iwlwifi: mvm: change open and close criteria of a BA session")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:43:38 +03:00
Avraham Stern
0fe8bed6e3 iwlwifi: mvm: send all non-bufferable frames on the probe queue
AP interfaces now send all non-bufferable frames using the broadcast
station. Thus allow them to use the probe queue and don't warn about
it.

Fixes: eb045e6e03 ("iwlwifi: mvm: Avoid deferring non bufferable frames")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:34:51 +03:00