linux.git
6 years agoMerge tag 'mt76-for-kvalo-2018-10-05' of https://github.com/nbd168/wireless
Kalle Valo [Sat, 6 Oct 2018 11:22:47 +0000 (14:22 +0300)]
Merge tag 'mt76-for-kvalo-2018-10-05' of https://github.com/nbd168/wireless

mt76 patches for 4.20

* unify code between mt76x0, mt76x2
* mt76x0 fixes
* another fix for rx buffer allocation regression on usb
* move mt76x2 source files to mt76x2 folder
* more work on mt76x0e support

6 years agoMerge tag 'iwlwifi-next-for-kalle-2018-10-06' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Sat, 6 Oct 2018 09:50:14 +0000 (12:50 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2018-10-06' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

Third set of iwlwifi patches for 4.20

* Fix for a race condition that caused the FW to crash;
* HE radiotap cleanup and improvements;
* Reorder channel optimization for scans;
* Bumped the FW API version supported after the last API change for
  this release;
* Debugging improvements;
* A few bug fixes;
* Some cleanups in preparation for a new implementation;
* Other small improvements, cleanups and fixes.

6 years agoiwlwifi: dbg: make trigger functions type agnostic
Sara Sharon [Thu, 21 Jun 2018 11:44:28 +0000 (14:44 +0300)]
iwlwifi: dbg: make trigger functions type agnostic

As preparation for new trigger type, make iwl_fw_dbg_collect_desc
agnostic to the trigger structure.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: decrement occurrences for all triggers
Sara Sharon [Thu, 21 Jun 2018 11:24:45 +0000 (14:24 +0300)]
iwlwifi: dbg: decrement occurrences for all triggers

iwl_fw_dbg_collect can be called by any function that already
has the error string ready. iwl_fw_dbg_collect_trig, on the
other hand, does string formatting. The occurrences decrement
is at iwl_fw_dbg_collect_trig, instead of iwl_fw_dbg_collect,
which causes it to sometimes be skipped. Move it to the right
location.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: use match_string() helper
Yisheng Xie [Mon, 21 May 2018 11:57:44 +0000 (19:57 +0800)]
iwlwifi: mvm: use match_string() helper

match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: make iwl_fw_dbg_no_trig_window trigger agnostic
Sara Sharon [Thu, 21 Jun 2018 06:43:59 +0000 (09:43 +0300)]
iwlwifi: dbg: make iwl_fw_dbg_no_trig_window trigger agnostic

As preparation for new trigger format, make the function
agnostic to the trigger fomat. Instead it gets the relevant
parameters - id and delay.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: show more HE radiotap data for TB PPDUs
Johannes Berg [Tue, 19 Jun 2018 07:32:00 +0000 (09:32 +0200)]
iwlwifi: mvm: show more HE radiotap data for TB PPDUs

For trigger-based PPDUs, most values aren't part of the HE-SIG-A
because they're preconfigured by the trigger frame. However, we
still have this information since we used the trigger frame to
configure the hardware, so we can (and do) read it back out and
can thus show it in radiotap.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: decode HE information for MU (without ext info)
Johannes Berg [Tue, 19 Jun 2018 07:21:58 +0000 (09:21 +0200)]
iwlwifi: mvm: decode HE information for MU (without ext info)

When the info type is MU, we still have the data from the TSF
overload words, so should decode that. When it's MU_EXT_INFO
we additionally have the SIG-B common 0/1/2 fields.

Also document the validity depending on the info type and fix
the name of the regular TB PPDU info type accordingly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: add debugfs to send host command
Shahar S Matityahu [Mon, 28 May 2018 08:18:43 +0000 (11:18 +0300)]
iwlwifi: add debugfs to send host command

Add debugfs to send host command in mvm and fmac op modes.
Allows to send host command at runtime via send_hcmd debugfs file.
The command is received as a string that represents hex values.

The struct of the command is as follows:
[cmd_id][flags][length][data]
cmd_id and flags are 8 chars long each.
length is 4 chars long.
data is length * 2 chars long.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: runtime: add send host command op to firmware runtime op struct
Shahar S Matityahu [Tue, 12 Jun 2018 12:40:42 +0000 (15:40 +0300)]
iwlwifi: runtime: add send host command op to firmware runtime op struct

Add send host command op to firmware runtime op struct to allow sending
host commands to the op mode from the fw runtime context.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: bump firmware API version for 9000 and 22000 series devices
Johannes Berg [Wed, 9 May 2018 09:01:12 +0000 (11:01 +0200)]
iwlwifi: bump firmware API version for 9000 and 22000 series devices

Bump the firmware API version to 41.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm Support new MCC update response
Haim Dreyfuss [Mon, 4 Jun 2018 10:20:00 +0000 (13:20 +0300)]
iwlwifi: mvm Support new MCC update response

Change MCC update response API to be compatible with new FW API.
While at it change v2 which is not in use anymore to v3 and cleanup
mcc_update v1 command and response which is obsolete.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: pcie: check iwl_pcie_txq_build_tfd() return value
Johannes Berg [Mon, 18 Jun 2018 07:53:36 +0000 (09:53 +0200)]
iwlwifi: pcie: check iwl_pcie_txq_build_tfd() return value

If we use the iwl_pcie_txq_build_tfd() return value for BIT(),
we should validate that it's not going to be negative, so do
the check and bail out if we hit an error. We shouldn't, as
we check if it'll fit beforehand, but better be safe.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: add fall through comment
Johannes Berg [Mon, 18 Jun 2018 08:22:03 +0000 (10:22 +0200)]
iwlwifi: add fall through comment

The fall-through to the MVM case is intended as we have to do
*something* to continue, and can't easily clean up. So we'll
just fail in mvm later, if this does happen.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: pcie gen2: check iwl_pcie_gen2_set_tb() return value
Johannes Berg [Mon, 18 Jun 2018 07:53:36 +0000 (09:53 +0200)]
iwlwifi: pcie gen2: check iwl_pcie_gen2_set_tb() return value

If we use the iwl_pcie_gen2_set_tb() return value for BIT(),
we should validate that it's not going to be negative, so do
the check and bail out if we hit an error. We shouldn't, as
we check if it'll fit beforehand, but better be safe.

Fixes: ab6c644539e9 ("iwlwifi: pcie: copy TX functions to new transport")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: nvm: get num of hw addresses from firmware
Naftali Goldstein [Tue, 12 Jun 2018 06:08:40 +0000 (09:08 +0300)]
iwlwifi: nvm: get num of hw addresses from firmware

With NICs that don't read the NVM directly and instead rely on getting
the relevant data from the firmware, the number of reserved MAC
addresses was not added to the API. This caused the driver to assume
there is only one address which results in all interfaces getting the
same address. Update the API to fix this.

While at it, fix-up the comments with firmware api names to actually
match what we have in the firmware.

Fixes: e9e1ba3dbf00 ("iwlwifi: mvm: support getting nvm data from firmware")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: add dump collection in case alive flow fails
Shahar S Matityahu [Sun, 27 May 2018 14:17:07 +0000 (17:17 +0300)]
iwlwifi: add dump collection in case alive flow fails

Trigger dump collection if the alive flow fails, regardless of the
reason.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: pcie: avoid empty free RB queue
Shaul Triebitz [Wed, 6 Jun 2018 14:20:58 +0000 (17:20 +0300)]
iwlwifi: pcie: avoid empty free RB queue

If all free RB queues are empty, the driver will never restock the
free RB queue.  That's because the restocking happens in the Rx flow,
and if the free queue is empty there will be no Rx.

Although there's a background worker (a.k.a. allocator) allocating
memory for RBs so that the Rx handler can restock them, the worker may
run only after the free queue has become empty (and then it is too
late for restocking as explained above).

There is a solution for that called 'emergency': If the number of used
RB's reaches half the amount of all RB's, the Rx handler will not wait
for the allocator but immediately allocate memory for the used RB's
and restock the free queue.

But, since the used RB's is per queue, it may happen that the used
RB's are spread between the queues such that the emergency check will
fail for each of the queues
(and still run out of RBs, causing the above symptom).

To fix it, move to emergency mode if the sum of *all* used RBs (for
all Rx queues) reaches half the amount of all RB's

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: set max TX/RX A-MPDU subframes to HE limit
Johannes Berg [Fri, 15 Jun 2018 12:21:53 +0000 (14:21 +0200)]
iwlwifi: mvm: set max TX/RX A-MPDU subframes to HE limit

In mac80211, the default remains for HT, so set the limit to
HE for our driver.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: add more information to HE radiotap
Johannes Berg [Thu, 14 Jun 2018 14:30:52 +0000 (16:30 +0200)]
iwlwifi: mvm: add more information to HE radiotap

For SU/SU-ER/MU PPDUs we have spatial reuse.

For those where it's relevant we also know the pre-FEC
padding factor, PE disambiguity bit, beam change bit
and doppler bit.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: add LDPC-XSYM to HE radiotap data
Johannes Berg [Thu, 14 Jun 2018 12:58:24 +0000 (14:58 +0200)]
iwlwifi: mvm: add LDPC-XSYM to HE radiotap data

Add information about the LDCP extra symbol segment to the HE
data when applicable (not for trigger-based PPDUs).

While at it, clean up the code for UL/DL a bit.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: add TXOP to HE radiotap data
Johannes Berg [Thu, 14 Jun 2018 12:54:38 +0000 (14:54 +0200)]
iwlwifi: mvm: add TXOP to HE radiotap data

We have this data available, so add it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: move HE-MU LTF_NUM parsing to he_phy_data parsing
Johannes Berg [Thu, 14 Jun 2018 12:52:19 +0000 (14:52 +0200)]
iwlwifi: mvm: move HE-MU LTF_NUM parsing to he_phy_data parsing

This code gets shorter if it doesn't have to check all the
conditions, so move it to an appropriate place that has all
of them validated already.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: clean up HE radiotap RU allocation parsing
Johannes Berg [Thu, 14 Jun 2018 12:48:27 +0000 (14:48 +0200)]
iwlwifi: mvm: clean up HE radiotap RU allocation parsing

Split the code out into a separate routine, and move that to be
called inside the previously introduced iwl_mvm_decode_he_phy_data()
function.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: pull some he_phy_data decoding into a separate function
Johannes Berg [Thu, 14 Jun 2018 12:36:22 +0000 (14:36 +0200)]
iwlwifi: mvm: pull some he_phy_data decoding into a separate function

Pull some of the decoding of he_phy_data into a separate function so
we don't need to check over and over again if it's valid.

While at it, fix the UL/DL bit reporting to be for all but trigger-
based frames.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: put HE SIG-B symbols/users data correctly
Johannes Berg [Fri, 15 Jun 2018 07:43:43 +0000 (09:43 +0200)]
iwlwifi: mvm: put HE SIG-B symbols/users data correctly

As detected by Luca during code review when I move this in the
next patch, the code here is putting the data into the wrong
field (flags1 instead of flags2). Fix that.

Fixes: e5721e3f770f ("iwlwifi: mvm: add radiotap data for HE")
Reported-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: minor cleanups to HE radiotap code
Johannes Berg [Thu, 14 Jun 2018 12:17:42 +0000 (14:17 +0200)]
iwlwifi: mvm: minor cleanups to HE radiotap code

Remove a stray empty line, unbreak some lines that aren't
really that long, and move on variable setting into the
initializer to avoid initializing it twice.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: remove unnecessary overload variable
Johannes Berg [Thu, 14 Jun 2018 12:07:49 +0000 (14:07 +0200)]
iwlwifi: mvm: remove unnecessary overload variable

This is equivalent to checking he_phy_data != HE_PHY_DATA_INVAL,
which is already done in a number of places, so remove the extra
'overload' variable entirely.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: clear HW_RESTART_REQUESTED when stopping the interface
Emmanuel Grumbach [Wed, 13 Jun 2018 08:49:20 +0000 (11:49 +0300)]
iwlwifi: mvm: clear HW_RESTART_REQUESTED when stopping the interface

Fix a bug that happens in the following scenario:
1) suspend without WoWLAN
2) mac80211 calls drv_stop because of the suspend
3) __iwl_mvm_mac_stop deallocates the aux station
4) during drv_stop the firmware crashes
5) iwlmvm:
* sets IWL_MVM_STATUS_HW_RESTART_REQUESTED
* asks mac80211 to kick the restart flow
6) mac80211 puts the restart worker into a freezable
   queue which means that the worker will not run for now
   since the workqueue is already frozen
7) ...
8) resume
9) mac80211 runs ieee80211_reconfig as part of the resume
10) mac80211 detects that a restart flow has been requested
    and that we are now resuming from suspend and cancels
    the restart worker
11) mac80211 calls drv_start()
12) __iwl_mvm_mac_start checks that IWL_MVM_STATUS_HW_RESTART_REQUESTED
    clears it, sets IWL_MVM_STATUS_IN_HW_RESTART and calls
    iwl_mvm_restart_cleanup()
13) iwl_fw_error_dump gets called and accesses the device
    to get debug data
14) iwl_mvm_up adds the aux station
15) iwl_mvm_add_aux_sta() allocates an internal station for
    the aux station
16) iwl_mvm_allocate_int_sta() tests IWL_MVM_STATUS_IN_HW_RESTART
    and doesn't really allocate a station ID for the aux
    station
17) a new queue is added for the aux station

Note that steps from 5 to 9 aren't really part of the
problem but were described for the sake of completeness.

Once the iwl_mvm_mac_stop() is called, the device is not
accessible, meaning that step 12) can't succeed and we'll
see the following:

drivers/net/wireless/intel/iwlwifi/pcie/trans.c:2122 iwl_trans_pcie_grab_nic_access+0xc0/0x1d6 [iwlwifi]()
Timeout waiting for hardware access (CSR_GP_CNTRL 0x080403d8)
Call Trace:
[<ffffffffc03e6ad3>] iwl_trans_pcie_grab_nic_access+0xc0/0x1d6 [iwlwifi]
[<ffffffffc03e6a13>] iwl_trans_pcie_dump_regs+0x3fd/0x3fd [iwlwifi]
[<ffffffffc03dad42>] iwl_fw_error_dump+0x4f5/0xe8b [iwlwifi]
[<ffffffffc04bd43e>] __iwl_mvm_mac_start+0x5a/0x21a [iwlmvm]
[<ffffffffc04bd6d2>] iwl_mvm_mac_start+0xd4/0x103 [iwlmvm]
[<ffffffffc042d378>] drv_start+0xa1/0xc5 [iwl7000_mac80211]
[<ffffffffc045a339>] ieee80211_reconfig+0x145/0xf50 [mac80211]
[<ffffffffc044788b>] ieee80211_resume+0x62/0x66 [mac80211]
[<ffffffffc0366c5b>] wiphy_resume+0xa9/0xc6 [cfg80211]

The station id of the aux station is set to 0xff in step 3
and because we don't really allocate a new station id for
the auxliary station (as explained in 16), we end up sending
a command to the firmware asking to connect the queue
to station id 0xff. This makes the firmware crash with the
following information:

0x00002093 | ADVANCED_SYSASSERT
0x000002F0 | trm_hw_status0
0x00000000 | trm_hw_status1
0x00000B38 | branchlink2
0x0001978C | interruptlink1
0x00000000 | interruptlink2
0xFF080501 | data1
0xDEADBEEF | data2
0xDEADBEEF | data3
Firmware error during reconfiguration - reprobe!
FW error in SYNC CMD SCD_QUEUE_CFG

Fix this by clearing IWL_MVM_STATUS_HW_RESTART_REQUESTED
in iwl_mvm_mac_stop(). We won't be able to collect debug
data anyway and when we will brought up again, we will
have a clean state from the firmware perspective.
Since we won't have IWL_MVM_STATUS_IN_HW_RESTART set in
step 12) we won't get to the 2093 ASSERT either.

Fixes: bf8b286f86fc ("iwlwifi: mvm: defer setting IWL_MVM_STATUS_IN_HW_RESTART")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: group trigger condition to helper function
Sara Sharon [Tue, 12 Jun 2018 07:41:35 +0000 (10:41 +0300)]
iwlwifi: dbg: group trigger condition to helper function

The triplet of get trigger, is trigger enabled and is trigger stopped
repeats itself.  Group them in a function to avoid code duplication.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: dump memory in a helper function
Sara Sharon [Tue, 12 Jun 2018 11:34:32 +0000 (14:34 +0300)]
iwlwifi: dbg: dump memory in a helper function

The code that dumps various memory types repeats itself.  Move it to a
function to avoid duplication.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: allow channel reorder optimization during scan
Ayala Beker [Thu, 17 May 2018 07:05:17 +0000 (10:05 +0300)]
iwlwifi: mvm: allow channel reorder optimization during scan

Allow the FW to reorder HB channels and first scan HB channels with
assumed APs, in order to reduce the scan duration.

Currently enable it for all scan requests types.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: split iwl_fw_error_dump to two functions
Sara Sharon [Mon, 11 Jun 2018 12:30:07 +0000 (15:30 +0300)]
iwlwifi: dbg: split iwl_fw_error_dump to two functions

Split iwl_fw_error_dump to two parts.  The first part will dump the
actual data, and second will do the file allocations, trans calls and
actual file operations.  This is done in order to enable reuse of the
code for the new debug ini infrastructure.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: refactor dump code to improve readability
Sara Sharon [Mon, 11 Jun 2018 09:43:26 +0000 (12:43 +0300)]
iwlwifi: dbg: refactor dump code to improve readability

Add a macro to replace all the conditions checking for valid dump
length.  In addition, move the fifo len calculation to a helper
function.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: dbg: move debug data to a struct
Sara Sharon [Mon, 11 Jun 2018 08:43:09 +0000 (11:43 +0300)]
iwlwifi: dbg: move debug data to a struct

The debug variables are bloating the iwl_fw struct.  And the fields
are out of order, missing docs and some are redundant.

Clean this up.  This serves as preparation for unionizing it for the
new ini infra.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: check for n_profiles validity in EWRD ACPI
Luca Coelho [Mon, 11 Jun 2018 08:15:17 +0000 (11:15 +0300)]
iwlwifi: mvm: check for n_profiles validity in EWRD ACPI

When reading the profiles from the EWRD table in ACPI, we loop over
the data and set it into our internal table.  We use the number of
profiles specified in ACPI without checking its validity, so if the
ACPI table is corrupted and the number is larger than our array size,
we will try to make an out-of-bounds access.

Fix this by making sure the value specified in the ACPI table is
valid.

Fixes: 6996490501ed ("iwlwifi: mvm: add support for EWRD (Dynamic SAR) ACPI table")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agomt76: move irq handler in mt76x02-lib moudle
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:38 +0000 (10:28 +0200)]
mt76: move irq handler in mt76x02-lib moudle

Move mt76x02_irq_handler handler in mt76x02_mmio.c in order to be
reused in mt76x0 driver. Move mt76x02_rx_poll_complete routine in
mt76x02-lib module. Moreover remove pci_core.c and mt76x2/trace.{c,h}
since are empty files

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move tx_tasklet management in mt76x02-lib moudle
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:37 +0000 (10:28 +0200)]
mt76: move tx_tasklet management in mt76x02-lib moudle

Move tx_tasklet management in mt76x02_mmio.c in order to
be reused by mt76x0 driver and remove duplicated code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: use mt76x02_dev instead of mt76_dev in mt76x02_mmio.c
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:36 +0000 (10:28 +0200)]
mt76: use mt76x02_dev instead of mt76_dev in mt76x02_mmio.c

Use mt76x02_dev data structure as reference in mt76x02_mmio.c
instead of mt76_dev

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_tx_complete in mt76x02-lib module
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:35 +0000 (10:28 +0200)]
mt76: move mt76x02_tx_complete in mt76x02-lib module

Move mt76x02_tx_complete mt76x02-lib module in order to
be reused by mt76x0 drivers for irq unification.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_mac_poll_tx_status in mt76x02-lib moudle
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:34 +0000 (10:28 +0200)]
mt76: move mt76x02_mac_poll_tx_status in mt76x02-lib moudle

Move mt76x02_mac_poll_tx_status in mt76x02_mac.c in order to
be reused by mt76x0 drivers for irq unification.
Moreover introduce mt76x02_trace source file to define mt76x02
trace points

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: usb: move mt76x02u_tx_complete_skb in mt76x02_usb_core.c
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:33 +0000 (10:28 +0200)]
mt76: usb: move mt76x02u_tx_complete_skb in mt76x02_usb_core.c

Move mt76x02u_tx_complete_skb and mt76x02u_remove_dma_hdr since they
are used just by usb code

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_tx_prepare_skb in mt76x02_txrx.c
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:32 +0000 (10:28 +0200)]
mt76: move mt76x02_tx_prepare_skb in mt76x02_txrx.c

Move mt76x02_tx_prepare_skb routine in mt76x02-lib module in order
to be reused by mt76x0 driver in tx datapath

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move tpc routines in mt76x02-lib module
Lorenzo Bianconi [Fri, 5 Oct 2018 08:28:31 +0000 (10:28 +0200)]
mt76: move tpc routines in mt76x02-lib module

Move mt76x02_tx_get_txpwr_adj and mt76x02_tx_set_txpwr_auto routines
in mt76x02-lib module since they are shared between mt76x0 and mt76x2
drivers. Moreover remove get_txpwr_adj function pointer

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x2: remove leftover function declatarions
Lorenzo Bianconi [Fri, 5 Oct 2018 08:00:34 +0000 (10:00 +0200)]
mt76x2: remove leftover function declatarions

Remove following function declarations since they have been moved
to mt76x02-lib module:
- mt76x2_sta_add
- mt76x2_sta_remove
- mt76x2_remove_interface
- mt76x2_conf_tx
- mt76x2_txq_init

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: rename mt76x02_util.h in mt76x02.h
Lorenzo Bianconi [Fri, 5 Oct 2018 08:00:33 +0000 (10:00 +0200)]
mt76: rename mt76x02_util.h in mt76x02.h

Rename mt76x02_util.h header file in mt76x02.h since now contains
all mt76x02 related definitions and not just utility routines
declarations

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move txrx shared routines in mt76x02_txrx.c
Lorenzo Bianconi [Fri, 5 Oct 2018 08:00:32 +0000 (10:00 +0200)]
mt76: move txrx shared routines in mt76x02_txrx.c

Add mt76x02_txrx.c source file in order to contain tx/rx shared
routines for mt76x0 and mt76x2 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_tx in mt76x02-lib module
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:12 +0000 (23:53 +0200)]
mt76: move mt76x02_tx in mt76x02-lib module

Move mt76x02_tx shared routine in mt76x02-lib module and remove
duplicated code. Moreover remove mt76x0/tx.c since it is an empty
file

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: unify rxwi parsing between mt76x2 and mt76x0 drivers
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:11 +0000 (23:53 +0200)]
mt76: unify rxwi parsing between mt76x2 and mt76x0 drivers

Unify rxwi parsing between mt76x2 and mt76x0. Remove the following
routines:
- mt76x0_phy_get_rssi
- mt76x0_queue_rx_skb
- mt76x0_mac_process_rx
Moreover remove mt76x2/common.c and mt76x0/mac.h since are empty files
Enable CCMP PN sw validation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_mac_process_rx in mt76x02-lib module
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:10 +0000 (23:53 +0200)]
mt76: move mt76x02_mac_process_rx in mt76x02-lib module

Move mt76x02_mac_process_rx utility routine in mt76x02-lib
in order to by reused by mt76x0 driver for rxwi parsing.
Add stream number check in mt76x02_mac_process_rx since mt76x0
chipsets are 1x1:1

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: merge mt76x0_dev in mt76x02_dev
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:09 +0000 (23:53 +0200)]
mt76x0: merge mt76x0_dev in mt76x02_dev

Merge mt76x0_dev data structure in mt76x02_dev one and remove
duplicated code. Remove unused definition in mt76x0.h.
Moreover merge mt76x0_caldata and mt76x02_rx_freq_cal data structures.
This is a preliminary patch for rxwi unification.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x2: move mt76x2_dev in mt76x02_util.h
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:08 +0000 (23:53 +0200)]
mt76x2: move mt76x2_dev in mt76x02_util.h

Move mt76x2_dev in mt76x02_util.h and rename it in mt76x02_dev
in order to be shared between mt76x2 and mt76x0 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: remove hw_atomic_mutex mutex in mt76x0_dev
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:07 +0000 (23:53 +0200)]
mt76x0: remove hw_atomic_mutex mutex in mt76x0_dev

Remove hw_atomic_mutex mutex in mt76x0_dev data structure
since mt76x0_phy_set_channel is already protected by mt76_dev
mutex while mt76x0_chip_onoff is used just at device probe or
cleanup

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: remove unused variable in mt76x0_dev
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:06 +0000 (23:53 +0200)]
mt76x0: remove unused variable in mt76x0_dev

Remove no longer used mac_lock spinlock and data array
in mt76x0_dev data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: mac: use sta ewma estimation for rssi tracking
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:05 +0000 (23:53 +0200)]
mt76x0: mac: use sta ewma estimation for rssi tracking

Use shared mt76x02 utility routines for rssi tracking.
Moreover remove no longer used con_mon_lock spinlock
and following variable:
- ap_bssid
- bcn_freq_off
- bcn_phy_mode
- avg_rssi

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_rx_get_sta and mt76x02_rx_get_sta_wcid in mt76x02_util.h
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:04 +0000 (23:53 +0200)]
mt76: move mt76x02_rx_get_sta and mt76x02_rx_get_sta_wcid in mt76x02_util.h

Move mt76x02_rx_get_sta and mt76x02_rx_get_sta_wcid utility routines in
mt76x02-lib module since it will be used by mt76x0 driver in order to
unify rxwi parsing

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_phy_get_min_avg_rssi in mt76x02_phy.c
Lorenzo Bianconi [Thu, 4 Oct 2018 21:53:03 +0000 (23:53 +0200)]
mt76: move mt76x02_phy_get_min_avg_rssi in mt76x02_phy.c

Move mt76x02_phy_get_min_avg_rssi in mt76x02-lib module since
it will be used by mt76x0 driver in order to unify rxwi parsing

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: init: remove unnecessary configurations
Lorenzo Bianconi [Mon, 1 Oct 2018 14:20:49 +0000 (16:20 +0200)]
mt76x0: init: remove unnecessary configurations

Remove leftover configuration for legacy devices in
mt76x0_init_mac_registers routine. Moreover remove
unnecessary msleep delay

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: usb: use mt76x02u_tx_prepare_skb to fill txwi
Lorenzo Bianconi [Mon, 1 Oct 2018 16:58:20 +0000 (18:58 +0200)]
mt76: usb: use mt76x02u_tx_prepare_skb to fill txwi

Use mt76x02u_tx_prepare_skb routine to fill txwi in mt76x2u and
mt76x0u driver and remove duplicated code. Moreover add static
qualifier to mt76x02_mac_tx_rate_val and mt76x02_mac_fill_txwi
routines

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_mac_write_txwi in mt76x02-lib module
Lorenzo Bianconi [Mon, 1 Oct 2018 16:58:19 +0000 (18:58 +0200)]
mt76: move mt76x02_mac_write_txwi in mt76x02-lib module

Move mt76x02_mac_write_txwi in mt76x02_mac.c since it is shared between
mt76x0 and mt76x2 drivers. This is a preliminary patch to unify txwi
configuration between mt76x0 and mt76x2 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: add get_tx_txpwr_adj function pointer to mt76_driver_ops
Lorenzo Bianconi [Mon, 1 Oct 2018 16:58:18 +0000 (18:58 +0200)]
mt76: add get_tx_txpwr_adj function pointer to mt76_driver_ops

Add get_tx_txpwr_adj function pointer to mt76_driver_ops data structure
as a preliminary patch to unify txwi configuration between mt76x0 and
mt76x2 drivers since tpc is currently supported just by mt76x2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: move mt76x02_tx_get_max_txpwr_adj in mt76x02_util.c
Lorenzo Bianconi [Mon, 1 Oct 2018 16:58:17 +0000 (18:58 +0200)]
mt76: move mt76x02_tx_get_max_txpwr_adj in mt76x02_util.c

Move mt76x02_tx_get_max_txpwr_adj routine in mt76x02-lib module
since now both mt76x0 and mt76x2 drivers read rate tx power gain from
rate_power data structure. Moreover remove get_max_txpwr_adj function
pointer from mt76_driver_ops data structure

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: usb: stop cal/mac workqueues at hw stop
Lorenzo Bianconi [Wed, 3 Oct 2018 10:52:26 +0000 (12:52 +0200)]
mt76x0: usb: stop cal/mac workqueues at hw stop

Stop mac and calibration work stopping the hw even if the
device has been removed

Fixes: b11e19694dc9 ("mt76x0: add ieee80211_ops ops pointer to
mt76x0_alloc_device signature")

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: usb: fix hw initialization sequence
Lorenzo Bianconi [Wed, 3 Oct 2018 10:52:25 +0000 (12:52 +0200)]
mt76: usb: fix hw initialization sequence

mt76u_alloc_queues need to be called before mt76u_mcu_init_rx
since it initializes rx_page_lock spinlock used in mt76u_buf_alloc
routine.

Fixes: b11e19694dc9 ("mt76x0: add ieee80211_ops ops pointer to
mt76x0_alloc_device signature")

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: fix frag length allocation for usb
Stanislaw Gruszka [Wed, 3 Oct 2018 10:52:24 +0000 (12:52 +0200)]
mt76: fix frag length allocation for usb

This is correct fix for c12128ce44b0 ("mt76: use a per rx queue page
fragment cache"). We use wrong length when we allocate segments for
MCU transmissions, which require bigger segment size than e->buf_size.

Commit 481bb0432414 ("mt76: usb: make rx page_frag_cache access atomic")
partially solved the problem or actually mask it by changing
mt76u_mcu_init_rx() and mt76u_alloc_queues() sequence, so e->buf_size
become non zero any longer, but still not big enough to handle MCU data.

Patch fixes memory corruption which can manifest itself as random,
not easy to reproduce crashes, during mt76 driver load or unload.

Fixes: c12128ce44b0 ("mt76: use a per rx queue page fragment cache")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76: fix header guard macro define names
Colin Ian King [Sun, 30 Sep 2018 22:57:15 +0000 (23:57 +0100)]
mt76: fix header guard macro define names

The header guards that are #defined are different from those being
checked.  Fix this by #defining them to the correct name.

Fixes clang warnings:
drivers/net/wireless/mediatek/mt76/mt76x02_mcu.h:17:9:
warning: '__MT76x02_MCU_H' is used as a header guard here, followed
by #define of a different macro [-Wheader-guard]

drivers/net/wireless/mediatek/mt76/mt76x02_usb.h:17:9:
warning: '__MT76x02_USB_H' is used as a header guard here, followed
by #define of a different macro [-Wheader-guard]

Fixes: 905db7470199 ("mt76: usb: move mt76x02 mcu code in mt76x02-usb module")
Fixes: edaa580bc830 ("mt76: move shared mcu_calibrate routine in mt76x02-lib module")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x2: move mt76x2 source files to mt76x2 folder
Lorenzo Bianconi [Mon, 1 Oct 2018 08:18:42 +0000 (10:18 +0200)]
mt76x2: move mt76x2 source files to mt76x2 folder

Move mt76x2 and mt76x2u drivers to mt76x2 subfolder and
leave just shared code in mt76 root folder

Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agomt76x0: pci: add mt76x0e_cleanup routine
Lorenzo Bianconi [Mon, 1 Oct 2018 08:55:54 +0000 (10:55 +0200)]
mt76x0: pci: add mt76x0e_cleanup routine

Add mt76x0e_cleanup routine to tidy up the device
during device removal

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
6 years agoqtnfmac: implement dump_station support for STA mode
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:46 +0000 (10:11 +0000)]
qtnfmac: implement dump_station support for STA mode

Current implementation of dump_station cfg80211 callback supports
AP mode only. Add support for STA mode as well: by default in STA
mode this callback is supposed to return AP on managed interface.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: drop redundant data copy in control path
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:45 +0000 (10:11 +0000)]
qtnfmac: drop redundant data copy in control path

Command responses and events from the firmware are copied twice in
control path: at first in shm core (qtnf_shm_handle_new_data) and
then in pcie bus drivers (qtnf_pcie_control_rx_callback). There
is no need to copy this data twice, it can be done only once
in rx callbacks.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: add support for scan dwell time configuration
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:43 +0000 (10:11 +0000)]
qtnfmac: add support for scan dwell time configuration

Firmware supports scan dwell time tuning for various types of scans.
Enable support for this feature:
- advertise capability to configure channel dwell time to host
- pass scan dwell parameters to wireless card in scan request

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: add support for scan flush
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:41 +0000 (10:11 +0000)]
qtnfmac: add support for scan flush

Notify firmware to flush cache before scanning when needed.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: drop error reports for out-of-bounds key indexes
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:40 +0000 (10:11 +0000)]
qtnfmac: drop error reports for out-of-bounds key indexes

On disconnect wireless core attempts to remove all the supported keys.
Following cfg80211_ops conventions, firmware returns -ENOENT code
for the out-of-bound key indexes. This is a normal behavior,
so no need to report errors for this case.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: inform wireless core about supported extended capabilities
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:38 +0000 (10:11 +0000)]
qtnfmac: inform wireless core about supported extended capabilities

Driver retrieves information about supported extended capabilities
from wireless card. However this information is not propagated
further to Linux wireless core. Fix this by setting extended
capabilities fields of wiphy structure.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: pass sgi rate info flag to wireless core
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:36 +0000 (10:11 +0000)]
qtnfmac: pass sgi rate info flag to wireless core

SGI should be passed to wireless core as a part of rate structure.
Otherwise wireless core performs incorrect rate calculation when
SGI is enabled in hardware but not reported to host.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: do not cancel scan in disconnect callback
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:35 +0000 (10:11 +0000)]
qtnfmac: do not cancel scan in disconnect callback

Do not cancel scan in disconnect callback. If there is an active scan,
it will be cancelled by firmware, then host driver will be properly
notified by event.

Cancelling scan in disconnect callback occasionally may lead to the
following race issue. Host is able to queue one scan after scan
abort in disconnect callback, and another scan after scan abort
in event handler. As a result, firmware receives second scan
before the first scan completes.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: cleanup and unify command error handling
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:33 +0000 (10:11 +0000)]
qtnfmac: cleanup and unify command error handling

Unify command error handling using qtnf_cmd_resp_result_decode
function. Do not duplicate error messages in command handlers
and cfg80211 callbacks: report 'cmd exec fail' only on control
path internal failure. Remove redundant 'unlikely' macros.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: do not initialize per-MAC data multiple times
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:31 +0000 (10:11 +0000)]
qtnfmac: do not initialize per-MAC data multiple times

Several members of pwr-MAC structure are re-initialized several times
together with per-VIF initialization. Fix that and simplify the code.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: request userspace to do OBSS scanning if FW can not
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:30 +0000 (10:11 +0000)]
qtnfmac: request userspace to do OBSS scanning if FW can not

In case firmware reports that it can not do OBSS scanning for 40MHz
2.4GHz channels itself, tell userpsace to do that instead by setting
NL80211_FEATURE_NEED_OBSS_SCAN flag.

Signed-off-by: Igor mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: generate local disconnect event in disconnect callback
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:28 +0000 (10:11 +0000)]
qtnfmac: generate local disconnect event in disconnect callback

When cfg80211 disconnect callback is triggered and command is
processed by firmware, disconnect event with local parameter
set must be sent immediately. Indicating that it's a "local"
event (not from AP) will help upper layers to process this
event correctly.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: do not track STA states in driver
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:27 +0000 (10:11 +0000)]
qtnfmac: do not track STA states in driver

Remove STA connection states tracking from driver.
Leave it wireless core on host and to firmware.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agob43: remove set but not used variable 'wl'
YueHaibing [Fri, 5 Oct 2018 04:15:45 +0000 (04:15 +0000)]
b43: remove set but not used variable 'wl'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/broadcom/b43/main.c: In function 'b43_one_core_detach':
drivers/net/wireless/broadcom/b43/main.c:5496:17: warning:
 variable 'wl' set but not used [-Wunused-but-set-variable]

After commit 644aa4d62096 ("b43: remove list of IEEE 802.11 devices")
'wl' is not used any more.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agossb: chipcommon: fix fall-through annotation
Gustavo A. R. Silva [Wed, 3 Oct 2018 12:01:02 +0000 (14:01 +0200)]
ssb: chipcommon: fix fall-through annotation

Replace "Fallthough" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Michael Buesch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agozd1211rw: Replace spin_is_locked() with lockdep
Lance Roy [Wed, 3 Oct 2018 05:38:54 +0000 (22:38 -0700)]
zd1211rw: Replace spin_is_locked() with lockdep

lockdep_assert_held() is better suited to checking locking requirements,
since it won't get confused when someone else holds the lock. This is
also a step towards possibly removing spin_is_locked().

Signed-off-by: Lance Roy <ldr709@gmail.com>
Cc: Daniel Drake <dsd@gentoo.org>
Cc: Ulrich Kunitz <kune@deine-taler.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <linux-wireless@vger.kernel.org>
Cc: <netdev@vger.kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agowlcore: Add support for optional wakeirq
Tony Lindgren [Mon, 1 Oct 2018 21:41:10 +0000 (14:41 -0700)]
wlcore: Add support for optional wakeirq

Now with wlcore using PM runtime, we can also add support for Linux
generic wakeirq handling for it if configured in the dts file.

The wakeirq can be configured as the second interrupt in the dts file
with interrupts-extended property where it is the padconf irq of the OOB
GPIO pin used for wlcore interrupt.

Note that eventually we should also allow configuring wlcore to use the
SDIO dat1 IRQ for wake-up, and in that case the the wakeirq should be
configured to be the padconf interrupt of the dat1 pin and not the
padconf interrupt of the OOB GPIO pin.

Cc: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agowlcore: Fix BUG with clear completion on timeout
Tony Lindgren [Mon, 1 Oct 2018 21:38:05 +0000 (14:38 -0700)]
wlcore: Fix BUG with clear completion on timeout

We do not currently clear wl->elp_compl on ELP timeout and we have bogus
lingering pointer that wlcore_irq then will try to access after recovery
is done:

BUG: spinlock bad magic on CPU#1, irq/255-wl12xx/580
...
(spin_dump) from [<c01b9344>] (do_raw_spin_lock+0xc8/0x124)
(do_raw_spin_lock) from [<c09b3970>] (_raw_spin_lock_irqsave+0x68/0x74)
(_raw_spin_lock_irqsave) from [<c01a02f0>] (complete+0x24/0x58)
(complete) from [<bf572610>] (wlcore_irq+0x48/0x17c [wlcore])
(wlcore_irq [wlcore]) from [<c01c5efc>] (irq_thread_fn+0x2c/0x64)
(irq_thread_fn) from [<c01c623c>] (irq_thread+0x148/0x290)
(irq_thread) from [<c016b4b0>] (kthread+0x160/0x17c)
(kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
...

After that the system will hang. Let's fix this by adding a flag for
recovery and moving the recovery work call to to the error handling
section.

And we want to set WL1271_FLAG_INTENDED_FW_RECOVERY and actually clear
it too in wl1271_recovery_work() and just downgrade the error to a
warning to prevent overly verbose output.

Cc: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agortlwifi: Removed unused define and code efuse_re_pg* from wifi.h
Ping-Ke Shih [Mon, 1 Oct 2018 09:25:14 +0000 (17:25 +0800)]
rtlwifi: Removed unused define and code efuse_re_pg* from wifi.h

The following:
 bool efuse_re_pg_sec1flag;
 u8 efuse_re_pg_data[8];
are not referenced anywhere in the rtlwifi code.

This patch is originally created by Rick Veens <rickveens92@gmail.com>,
and Joe Perches <joe@perches.com> reminded to apply it to rtlwifi.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agobrcmfmac: fix full timeout waiting for action frame on-channel tx
Chung-Hsien Hsu [Thu, 27 Sep 2018 14:59:49 +0000 (14:59 +0000)]
brcmfmac: fix full timeout waiting for action frame on-channel tx

The driver sends an action frame down and waits for a completion signal
triggered by the received BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE event
to continue the process. However, the action frame could be transmitted
either on the current channel or on an off channel. For the on-channel
case, only BRCMF_E_ACTION_FRAME_COMPLETE event will be received when
the frame is transmitted, which make the driver always wait a full
timeout duration. This patch has the completion signal be triggered by
receiving the BRCMF_E_ACTION_FRAME_COMPLETE event for the on-channel
case.

This change fixes WFA p2p certification 5.1.19 failure.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agobrcmfmac: reduce timeout for action frame scan
Chung-Hsien Hsu [Thu, 27 Sep 2018 14:59:44 +0000 (14:59 +0000)]
brcmfmac: reduce timeout for action frame scan

Finding a common channel to send an action frame out is required for
some action types. Since a loop with several scan retry is used to find
the channel, a short wait time could be considered for each attempt.
This patch reduces the wait time from 1500 to 450 msec for each action
frame scan.

This patch fixes the WFA p2p certification 5.1.20 failure caused by the
long action frame send time.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoMerge tag 'mt76-for-kvalo-2018-10-01' of https://github.com/nbd168/wireless
Kalle Valo [Thu, 4 Oct 2018 05:35:58 +0000 (08:35 +0300)]
Merge tag 'mt76-for-kvalo-2018-10-01' of https://github.com/nbd168/wireless

mt76 patches for 4.20

* unify code between mt76x0, mt76x2
* mt76x0 fixes
* tx power configuration fix for 76x2
* more progress on mt76x0e support
* support for getting firmware version via ethtool
* fix for rx buffer allocation regression on usb
* fix for handling powersave responses
* fix for mt76x2 beacon transmission

6 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Thu, 4 Oct 2018 05:33:42 +0000 (08:33 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for 4.20. Major changes:

ath10k

* retrieve MAC address from system firmware if provided

* support extended board data download for dual-band QCA9984

* extended per sta tx statistics support via debugfs

* average ack rssi support for data frames

* speed up QCA6174 and QCA9377 firmware download using diag Copy Engine

* HTT High Latency mode support needed by SDIO and USB support

* get STA power save state via debugfs

ath9k

* add reset functionality for airtime station debugfs file

6 years agotls: Add support for inplace records encryption
Vakul Garg [Sun, 30 Sep 2018 02:34:35 +0000 (08:04 +0530)]
tls: Add support for inplace records encryption

Presently, for non-zero copy case, separate pages are allocated for
storing plaintext and encrypted text of records. These pages are stored
in sg_plaintext_data and sg_encrypted_data scatterlists inside record
structure. Further, sg_plaintext_data & sg_encrypted_data are passed
to cryptoapis for record encryption. Allocating separate pages for
plaintext and encrypted text is inefficient from both required memory
and performance point of view.

This patch adds support of inplace encryption of records. For non-zero
copy case, we reuse the pages from sg_encrypted_data scatterlist to
copy the application's plaintext data. For the movement of pages from
sg_encrypted_data to sg_plaintext_data scatterlists, we introduce a new
function move_to_plaintext_sg(). This function add pages into
sg_plaintext_data from sg_encrypted_data scatterlists.

tls_do_encryption() is modified to pass the same scatterlist as both
source and destination into aead_request_set_crypt() if inplace crypto
has been enabled. A new ariable 'inplace_crypto' has been introduced in
record structure to signify whether the same scatterlist can be used.
By default, the inplace_crypto is enabled in get_rec(). If zero-copy is
used (i.e. plaintext data is not copied), inplace_crypto is set to '0'.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Reviewed-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: lantiq: Fix path in MAINTAINERS file
Hauke Mehrtens [Sat, 29 Sep 2018 11:26:30 +0000 (13:26 +0200)]
net: dsa: lantiq: Fix path in MAINTAINERS file

The MAINTAINERS file contained the wrong file name of the driver.

Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agohv_netvsc: remove ndo_poll_controller
Stephen Hemminger [Sat, 29 Sep 2018 12:52:56 +0000 (14:52 +0200)]
hv_netvsc: remove ndo_poll_controller

Similar to other patches from ERic.

As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

In netvsc driver it uses NAPI for TX completions. The default
poll_napi will do this for us now and avoid the capture.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Eric Dumazet <edumazet@google.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMAINTAINERS: Fix wrong include file path
Andrew Lunn [Sat, 29 Sep 2018 19:57:02 +0000 (21:57 +0200)]
MAINTAINERS: Fix wrong include file path

Fix the patch for the mv88e6xxx.h header file in MAINTAINERS

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
David S. Miller [Wed, 3 Oct 2018 05:34:54 +0000 (22:34 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2018-09-30

Here's the first bluetooth-next pull request for the 4.20 kernel.

 - Fixes & cleanups to hci_qca driver
 - NULL dereference fix to debugfs
 - Improved L2CAP Connection-oriented Channel MTU & MPS handling
 - Added support for USB-based RTL8822C controller
 - Added device ID for BCM4335C0 UART-based controller
 - Various other smaller cleanups & fixes

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: Use proper enum in IEEE_FAUX_SYNC
Nathan Chancellor [Mon, 1 Oct 2018 03:47:38 +0000 (20:47 -0700)]
cxgb4: Use proper enum in IEEE_FAUX_SYNC

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:390:4: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                        IEEE_FAUX_SYNC(dev, dcb);
                        ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h:70:10: note: expanded
from macro 'IEEE_FAUX_SYNC'
                                            CXGB4_DCB_STATE_FW_ALLSYNCED);
                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Use the equivalent value of the expected type to silence Clang while
resulting in no functional change.

CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: Use proper enum in cxgb4_dcb_handle_fw_update
Nathan Chancellor [Mon, 1 Oct 2018 03:51:43 +0000 (20:51 -0700)]
cxgb4: Use proper enum in cxgb4_dcb_handle_fw_update

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:303:7: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                         ? CXGB4_DCB_STATE_FW_ALLSYNCED
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:304:7: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                         : CXGB4_DCB_STATE_FW_INCOMPLETE);
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.

Use the equivalent value of the expected type to silence Clang while
resulting in no functional change.

CXGB4_DCB_STATE_FW_INCOMPLETE = CXGB4_DCB_INPUT_FW_INCOMPLETE = 2
CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agodpaa_eth: Remove useless declaration
Nathan Chancellor [Mon, 1 Oct 2018 04:10:29 +0000 (21:10 -0700)]
dpaa_eth: Remove useless declaration

Clang warns:

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c:2734:34: warning:
tentative array definition assumed to have one element
static const struct of_device_id dpaa_match[];
                                 ^
1 warning generated.

Turns out that since this driver was introduced in commit 9ad1a3749333
("dpaa_eth: add support for DPAA Ethernet"), this declaration has been
unused. Remove it to silence the warning.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoipv6: add vrf table handling code for ipv6 mcast
Patrick Ruddy [Mon, 1 Oct 2018 08:41:27 +0000 (09:41 +0100)]
ipv6: add vrf table handling code for ipv6 mcast

The code to obtain the correct table for the incoming interface was
missing for IPv6. This has been added along with the table creation
notification to fib rules for the RTNL_FAMILY_IP6MR address family.

Signed-off-by: Patrick Ruddy <pruddy@vyatta.att-mail.com>
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>