224 Commits

Author SHA1 Message Date
Luca Coelho
da2830acf1 iwlwifi: mvm: read SAR BIOS table from ACPI
Read the SAR BIOS table from the ACPI and parse it into the
iwl_mvm_sar_table structure.  If the table is enabled, send it to the
firmware via REDUCE_TX_POWER_CMD.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 02:23:36 +03:00
Liad Kaufman
97d5be7e22 iwlwifi: mvm: support dqa-enable hcmd
Support sending the DQA-enablement HCMD to the FW when
working in DQA mode.

This HCMD will enable DQA-specific flows in the FW.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:49:21 +03:00
Sara Sharon
f43495fd5e iwlwifi: mvm: fix possible division by zero
Theoretically we may get only one IRQ from OS, in which
case we will have only 1 queue even in MSIx mode.
This will cause division by zero in the indirection table
calculation.
We do not need send the command in that case, as there is
only one queue so all RX traffic will be directed to it
anyway. Bail out early if there is only one queue.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-07-06 00:33:06 +03:00
Sara Sharon
ce1f27787d iwlwifi: mvm: remove redundant alloc_ctx parameter
iwl_phy_db_set_section() is get called only from atomic
context, the alloc_ctx parameter is not needed. Remove it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 22:34:03 +03:00
Luca Coelho
a525d0eab1 * fix P2P rates (and possibly other issues)
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Merge tag 'iwlwifi-for-kalle-2016-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

* fix P2P rates (and possibly other issues)

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 11:56:24 +03:00
Johannes Berg
57fbcce37b cfg80211: remove enum ieee80211_band
This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-04-12 15:56:15 +02:00
Matti Gottlieb
f742aaf36e iwlwifi: mvm: fix accessing Null pointer during fw dump collection
The firwmare file can come with data that is relevant for paging. This
data is availablet to the firmware upon request, but it stored in the
host's memory. During the firmware init flow, the driver configures the
firmware so that the firwmare knows where is the data.
When paging is used, the variable paging_mem_size is the number of bytes
that are available through paging. This variable is not zeror-ed if the
driver fails to configure the paging in the firmware, but the memory is
freed which is inconsistent.
This inconsistency led to a NULL pointer dereference in the code that
collects the debug data.

Fix this by zero-ing the paging_mem_size variable and NULLify the
relevant pointers, so that the code that collects the debug data will
know that the paging data is not available.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-04-12 11:52:39 +03:00
Liad Kaufman
097129c9e6 iwlwifi: mvm: move cmd queue to be #0 in dqa mode
Change the CMD queue to be queue #0 (rather than queue #9)
when working in DQA mode.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30 16:24:48 +03:00
Sara Sharon
854d773e4a iwlwifi: mvm: improve RSS configuration
Improve current RSS configuration:
 * Use netdev_rss_key instead of keeping a local copy.
 * Configure also UDP hashing to have UDP traffic spread across queues.
 * Do not direct RSS traffic to our fallback queue.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-30 16:21:30 +03:00
Golan Ben-Ami
5b08641429 iwlwifi: mvm: support dumping UMAC internal txfifos
In case of FW error, support dumping the UMAC internal txfifos.
To do so, support version 2 of shared memory cfg command, which
contains the sizes of the internal txfifos, and move the command
to the system group.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20 13:26:02 +02:00
Matti Gottlieb
cd47a3d3c7 iwlwifi: mvm: make sure FW contains the right amount of paging sections
Paging contains 3 sections in the fw. The first for the paging separator,
The second for the CSS block, the third with the paging data.

Currently if the driver finds the paging separator, and there is only
section left (CSS), once reading the CSS section, the driver will
attempt to read the paging data and will go out of the arrays bounds.

Make sure that the FW image contains the right amount of sections for
paging.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20 13:26:02 +02:00
Matti Gottlieb
c94d7996db iwlwifi: mvm: Decrease size of the paging download buffer
Currently the driver has 2 buffers for paging:
1. paging db - this contains all of the pages that were in the FW
image, that the driver stores for the FW. This is allocated for each
block separately (not contiguous).
2. download buffer - we need to provide this empty buffer for the
iwl_sdio_load_fw_chunk function to copy the requested pages to the shared
memory. This is one big buffer of contiguous memory whose size is the
size of all the blocks that the fw paging section can contain.

This download buffer size is too big, and causes the allocation to fail
sometimes. Since the driver allocates memory for each block separately,
it is not possible for the FW to request all of the pages in one request
(the FW gives an address and size, so blocks need to be contiguous for
this to happen), therefore the FW is limited to request only one block.

Decrease the size of the paging download buffer to be the size of a
paging block.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-20 12:34:31 +02:00
Emmanuel Grumbach
53f09e742b Merge branch 'fixes' into next
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-02 09:35:38 +02:00
Chaya Rachel Ivgi
fcb6b92a68 iwlwifi: mvm: update ucode status before stopping device
Leaving ucode_loaded to true after stop_device() has been called
is a recipe for problems. Flows that are not sync'ed with the
driver life cycle (like debugfs hooks and thermal hooks) must
check that the firmware is loaded before they interact with it.
Therefore we need to keep this variable updated with the real
status of the firmware.

Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-03-02 08:56:58 +02:00
Golan Ben-Ami
3d2d442236 iwlwifi: support ucode with d0 unified image - regular and usniffer
Till today, the ucode consisted of two d0 images - regular,
in which the usniffer wasn't enabled, and usniffer, in which the
usniffer logs were enabled.
Lately, the two images were unified, so there is only one d0 image,
in which the usniffer logs are enabled.

Add new TLV capability for supporting the consolidated images
(set 2, bit 13).

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-28 22:53:06 +02:00
Sara Sharon
dd4d3161d0 iwlwifi: mvm: fix RSS key sizing
The initialization and copying of the RSS secret key
should not use ARRAY_SIZE as we need to initialize a
dword array, and not a byte array.
Fix also the hook maximum write size to allow writing
a longer table - up to full indirection table size.

Fixes: 43413a975d06("iwlwifi: mvm: support rss queues configuration command")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-27 21:59:51 +02:00
Chaya Rachel Ivgi
5c89e7bc55 iwlwifi: mvm: add registration to cooling device
Register cooling device in order to have the Thermal
Manager handle the device's power budget according to the sent
notifications.
The interface adds a new thermal cooling device to
/sys/class/thermal/ folder.

Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-27 21:59:50 +02:00
Chaya Rachel Ivgi
c221daf219 iwlwifi: mvm: add registration to thermal zone
Register to thermal_zone interface and implement the
thermal ops.
The thermal handles the device throttling, and sets the
the temperature thresholds the Thermal Manager would be
notified of crossing.
The thermal interface adds a new thermal zone device sensor
under /sys/class/thermal/ folder.

Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-27 21:59:49 +02:00
Matti Gottlieb
905e36ae17 iwlwifi: mvm: Fix paging memory leak
If the opmode is stopped and started again we did not free
the paging buffers. Fix that.
In addition when freeing the firmware's paging download
buffer, set the pointer to NULL.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-23 21:51:30 +02:00
Sara Sharon
43413a975d iwlwifi: mvm: support rss queues configuration command
9000 series supports multi-queue rx. The hardware needs
to be configured with the hash functions to perform and
indirection table that maps hash results to the relevant
CPUs\queues.
Support this configuration.
Add debugfs hook to configure the indirection table in
order to enable performance analysis. The configuration
is stateless, receives a partial or full pattern and sends
the command to the firmware.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-02-01 16:40:27 +02:00
Emmanuel Grumbach
4ca87a5f58 iwlwifi: mvm: reset mvm->scan_type when firmware is started
If we don't reset the scan type when the firmware is
started, we will think the firmware is still configured
after the interface has been brought down. When we will
bring it up again, we will not configure the scan type
in firmware and it will crash with the following assert:

0x0000100A | ADVANCED_SYSASSERT

Fixes: 355346ba3050 ("iwlwifi: mvm: configure scheduled scan according to traffic conditions")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-01-07 19:01:25 +02:00
Emmanuel Grumbach
cb2f827795 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>
2015-12-20 14:48:22 +02:00
Golan Ben-Ami
2f89a5d7d3 iwlwifi: mvm: move fw-dbg code to separate file
The fw debug functionality is big enough to warrant
a separate file. Move existing related functions to the new file.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2015-12-01 21:17:35 +02:00
Kalle Valo
e705c12146 iwlwifi: move under intel vendor directory
Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-11-18 14:28:30 +02:00