1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Commit graph

1515 commits

Author SHA1 Message Date
Luca Coelho
4c324a51b6 iwlwifi: mvm: simplify CHECK_MLME_TRIGGER macro
There's no reason to pass mvm and trig as parameters to the macro,
since it will be expanded inside the function itself.  Also remove the
bogus buf parameter which doesn't exist and is not used.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Sharon Dvir
806911da64 iwlwifi: mvm: change sta_id to u8
The sta_id variable is used as an index in an array, should be unsigned.
Found by Klocwork.

Fixes: 9f9af3d7d3 ("iwlwifi: mvm: re-aggregate shared queue after unsharing")
Signed-off-by: Sharon Dvir <sharon.dvir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg
acf91dda3f iwlwifi: mvm: fix a bunch of kernel-doc warnings
Fix the kernel-doc, and remove some fields even the firmware doesn't
use in ToF, RX, scan, station and generic FW APIS.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg
358631bf44 iwlwifi: mvm: add documentation for all command IDs
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:24 +03:00
Johannes Berg
cecb43c7b5 iwlwifi: mvm: use __le16 even for reserved fields
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Johannes Berg
40e07545d1 iwlwifi: mvm: remove various unused command IDs/structs
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Johannes Berg
83b0319abc iwlwifi: mvm: fix various "Excess ... description" kernel-doc warnings
Fix various "Excess struct/union/enum/typedef member '...' description
in '...'" warnings from kernel-doc, mostly caused by typos.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Johannes Berg
1644be9189 iwlwifi: mvm: remove some CamelCase from firmware API
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Haim Dreyfuss
e6ee06575b iwlwifi: mvm: Add debugfs entry to retrieve SAR geographic profile
Add a debugfs entry to get a verbose description of the power settings
used in each band with the currently selected SAR geographic profile.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Haim Dreyfuss
7fe90e0e3d iwlwifi: mvm: refactor geo init
We are going to add debugfs entry to retrieve the current geographic
profile being used in the FW. Currently the driver reads those tables
from the BIOS and passes them to the FW.
To prepare for this retrieving we want to store those
tables in the driver.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-29 13:26:23 +03:00
Kalle Valo
b90a16854d More iwlwifi patches for 4.13
* Some changes in suspend/resume handling to support new FWs;
 * A bunch of RF-kill related fixes;
 * Continued work towards the A000 family;
 * Support for a new version of the TX flush FW API;
 * Some fixes in monitor interfaces;
 * A few fixes in the recovery flows;
 * Johannes' documentation fixes and FW API struct cleanups continue;
 * Remove some noise from the kernel logs;
 * Some other small improvements, fixes and cleanups;
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEF3LNfgb2BPWm68smoUecoho8xfoFAllTgG4ACgkQoUecoho8
 xfopuBAAnRfYFrgZJ+hasZBNjaP2n1dc3wutnOMfly79owxUy7Iw7ekuo3MKZuxr
 kLv7l02Zbo8hG9KO/sAvsjVNEIhnPrD1bUuY2DCJb5+ap2BWoFkA9+Z1nw5K1q2z
 zD+nlAVE+v0rdmRe/gt6+s3kgQKahvqgotXJ/ObOuoaphQRm1VP22eVKl+XTG1gL
 9NwmJ/ohuqwjVDVsv6ThTOq1pfbf0r065pUHrbSvCh7Wtus9KSloNajRbHhHjmz7
 DG1Lop1bWTlEwYuGyJpFGwVt2hUcFb4sO6chzWhBxIeX/NBNHy+8ooY6dFbExgfD
 ++Co/HbMLZr9KRrIRxCkoe5Z1X5VaQR6rpUWLIWSvMrBb1CreBW4YdTdSdAPzk+n
 MlyF2s3SxJkl/wvXCmwKsy02RX+X6ncbZ0/ihRoi+PAw4UI1sqbQN8y8/IlbNORc
 fTBAqVpph+yyrUQoFlepSWTmVOGwKivbxEWZmKNpCbLBWMCA+nGwRbJnhMkj/bc2
 Xkl17S4CTHD2basikiUiXjObKPPFw9c+ZuNgX+DnBD0qmyBilxgYuXRpaXRTPl1N
 YbPygbEyiUeOzGS9fQcnLVEHVmvqRrFChD1eM6ag2nw2CVz5n57Zyu8j1QQQLq7F
 Wsx7WE+sf/P48shVVkcXgCiZ7Bk10knSHC77ox4tH3PmLiVDNag=
 =DdqX
 -----END PGP SIGNATURE-----

Merge tag 'iwlwifi-next-for-kalle-2017-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

More iwlwifi patches for 4.13

* Some changes in suspend/resume handling to support new FWs;
* A bunch of RF-kill related fixes;
* Continued work towards the A000 family;
* Support for a new version of the TX flush FW API;
* Some fixes in monitor interfaces;
* A few fixes in the recovery flows;
* Johannes' documentation fixes and FW API struct cleanups continue;
* Remove some noise from the kernel logs;
* Some other small improvements, fixes and cleanups;
2017-06-28 18:55:55 +03:00
David S. Miller
24a72b77f3 wireless-drivers-next patches for 4.13
New features and bug fixes to quite a few different drivers, but
 nothing really special standing out.
 
 What makes me happy that we have now more vendors actively
 contributing to upstream drivers. In this pull request we have patches
 from Broadcom, Intel, Qualcomm, Realtek and Redpine Signals, and I
 still have patches from Marvell and Quantenna pending in patchwork. Now
 that's something comparing to how things looked 11 years ago in Jeff
 Garzik's "State of the Union: Wireless" email:
 
 https://lkml.org/lkml/2006/1/5/671
 
 Major changes:
 
 wil6210
 
 * add low level RF sector interface via nl80211 vendor commands
 
 * add module parameter ftm_mode to load separate firmware for factory
   testing
 
 * support devices with different PCIe bar size
 
 * add support for PCIe D3hot in system suspend
 
 * remove ioctl interface which should not be in a wireless driver
 
 ath10k
 
 * go back to using dma_alloc_coherent() for firmware scratch memory
 
 * add per chain RSSI reporting
 
 brcmfmac
 
 * add support multi-scheduled scan
 
 * add scheduled scan support for specified BSSIDs
 
 * add support for brcm43430 revision 0
 
 wlcore
 
 * add wil1285 compatible
 
 rsi
 
 * add RS9113 USB support
 
 iwlwifi
 
 * FW API documentation improvements (for tools and htmldoc)
 
 * continuing work for the new A000 family
 
 * bump the maximum supported FW API to 31
 
 * improve the differentiation between 8000, 9000 and A000 families
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJZT/ROAAoJEG4XJFUm622b/IwH+wQtBXP+P57DZ97BdETcZ3Wd
 ejm9KKT3IxcP7kzItT9UR1zv7LNx4NgSkJMfhf37jJ1WIuE2fp/ctNv6mz3PvohW
 jD1fLynwEMMC7PLHEy5+xGtL61KYc2mtXs/bfLFl94hZUiaocrsBDIT4fXoyIWif
 y3MUlBKDbHA27ULRd485C0MRekRSvR/rq6iST4KsIsa8RflJbdH64teTEnQPp4kh
 nvhfnaxVEqHK7mYbarC58yYLNOU8gfQXmeeTfd6jhCXRjfEw37IvtNC8BT4B9ZDX
 YMZLbkeDSwNGXIH7EIrpGOYHCPh+qsiJ+sx7YodomcJvd1nVrmbuZZt9/EqWXuY=
 =Fd/c
 -----END PGP SIGNATURE-----

Merge tag 'wireless-drivers-next-for-davem-2017-06-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.13

New features and bug fixes to quite a few different drivers, but
nothing really special standing out.

What makes me happy that we have now more vendors actively
contributing to upstream drivers. In this pull request we have patches
from Broadcom, Intel, Qualcomm, Realtek and Redpine Signals, and I
still have patches from Marvell and Quantenna pending in patchwork. Now
that's something comparing to how things looked 11 years ago in Jeff
Garzik's "State of the Union: Wireless" email:

https://lkml.org/lkml/2006/1/5/671

Major changes:

wil6210

* add low level RF sector interface via nl80211 vendor commands

* add module parameter ftm_mode to load separate firmware for factory
  testing

* support devices with different PCIe bar size

* add support for PCIe D3hot in system suspend

* remove ioctl interface which should not be in a wireless driver

ath10k

* go back to using dma_alloc_coherent() for firmware scratch memory

* add per chain RSSI reporting

brcmfmac

* add support multi-scheduled scan

* add scheduled scan support for specified BSSIDs

* add support for brcm43430 revision 0

wlcore

* add wil1285 compatible

rsi

* add RS9113 USB support

iwlwifi

* FW API documentation improvements (for tools and htmldoc)

* continuing work for the new A000 family

* bump the maximum supported FW API to 31

* improve the differentiation between 8000, 9000 and A000 families
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25 14:45:34 -04:00
Liad Kaufman
6d759b02f4 iwlwifi: mvm: support TX on MONITOR iface
When trying to TX through a monitor interface, the
conditions in iwl_mvm_tx_skb_non_sta() don't match
and the frame tries to go out from an usued TXQ.

Add a check for monitor iface, and use the AUX queue
in such a case.

In non-DQA mode the frame is sent through the
static-allocated queues anyway, so the problem is
in DQA mode only.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:27:52 +03:00
Chaya Rachel Ivgi
3b9449bb1d iwlwifi: mvm: fix typo in CTDP_CMD_OPERATION_REPORT description
Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:27:11 +03:00
Luca Coelho
4409e72b71 iwlwifi: mvm: print base HW address during init
It's sometimes hard to find out which HW address the iwlwifi device is
using, for instance when reading crouded sniffer logs.  To make it
easier, print out an info level message with the HW address as soon as
we know it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:20:16 +03:00
Luca Coelho
a8d011446b iwlwifi: mvm: document assoc_beacon_arrive_time
Document the assoc_beacon_arrive_time element in the iwl_mac_data_sta
struct.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:19:54 +03:00
Mordechai Goodstein
d167e81ad4 iwlwifi: mvm: support new flush API
This new API allows flushing queues based on station ID and TID in A000
devices.  One reason for using this is that tfd_queue_mask is only good
for 32 queues, which is not enough for A000 devices.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:19:33 +03:00
Emmanuel Grumbach
a509a248bb iwlwifi: mvm: reset the fw_dump_desc pointer after ASSERT
When we get an ASSERT, the fw_dump_desc pointer points to
iwl_mvm_dump_desc_assert which can't be freed since it is
a global. We still need to NULL'ify the pointer when we
call iwl_mvm_free_fw_dump_desc otherwise we will hit

int iwl_mvm_fw_dbg_collect_desc(struct iwl_mvm *mvm,
                                const struct iwl_mvm_dump_desc *desc,
                                const struct iwl_fw_dbg_trigger_tlv *trigger)
{
<snip>
        if (WARN_ON(mvm->fw_dump_desc))
                iwl_mvm_free_fw_dump_desc(mvm);

Fixes: b6eaa45aa1 ("iwlwifi: mvm: add the cause of the firmware dump in the dump")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:09:13 +03:00
Avraham Stern
b566972725 iwlwifi: mvm: set assoc_beacon_arrive_time
When updating the mac context after association,
assoc_beacon_arrive_time is not being set, which causes the FW to
set a wrong TSF to the MAC.

Fix this by setting the assoc_beacon_arrive_time when updating the
mac context after association.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:08:34 +03:00
Emmanuel Grumbach
dcfbd67b4b iwlwifi: add a W/A for a scheduler hardware bug
In case we need to move the scheduler write pointer by
steps of 0x40, 0x80 or 0xc0, the scheduler gets stuck.
This leads to hardware error interrupts with status:
0x5A5A5A5A or alike.

In order to work around this, detect in the transport
layer that we are going to hit this case and tell iwlmvm
to increment the sequence number of the packets. This
allows to keep the requirement that the WiFi sequence
number is in sync with the index in the scheduler Tx queue
and it also allows to avoid the problematic sequence.
This means that from time to time, we will start a queue
from ssn + 1, but that shouldn't be a problem since we
don't switch to new queues for AMPDU now that we have
DQA which allows to keep the same queue while toggling
the AMPDU state.

This bug has been fixed on 9000 devices and up.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:07:04 +03:00
Emmanuel Grumbach
59df97f722 iwlwifi: mvm: don't mark TIDs that are not idle wrt BA as inactive
A TID may not have traffic but still have a BA agreement
active (or being setup / torn down) since a BA agreement
can be triggered by a debugfs hook.
Just avoid to consider such a TID as inactive to make the
logic safer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:06:39 +03:00
Luca Coelho
6b54ebf73b iwlwifi: mvm: reset the HW before dumping if HW error is detected
If the hardware is stuck, we can't read any of the memory we need to
dump it, so we end up printing only 0xa5a5a5a5, which is useless.

To solve this, poke the hardware by triggering a reset and re-enabling
the clocks if we detect a HW error.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:06:14 +03:00
Emmanuel Grumbach
6b28f9784c iwlwifi: mvm: fix the recovery flow while connecting
In BSS mode in the disconnection flow, mac80211 removes
the AP station before the vif is set to unassociated.
Our firmware wants it the other way around: first set
the vif as unassociated, and then remove the AP station.

In order to bridge between those two different behaviors,
iwlmvm doesn't remove the station from the firmware when
mac80211 removes it, but only after the vif is set to
unassociated. The implementation is in
iwl_mvm_bss_info_changed_station:

if (assoc state was modified && mvmvif->ap_sta_id is VALID
    && assoc state is now UNASSC)
	remove_the_station_from_the_firmware()

During the recovery flow, mac80211 re-adds the AP station
and then reconfigures the vif. Since the vif is not
associated, and then, we enter the if above (which was
intended to be taken in the disconnection flow only) and
remove the station we just added. This defeats the
recovery flow.

Fix this by not removing the AP station in this flow if
we are in recovery flow.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:04:14 +03:00
Luca Coelho
946af0079c iwlwifi: mvm: fix nvm_data leak
We allocate nvm_data in iwl_mvm_nvm_get_from_fw().  If something goes
wrong after the allocation (i.e. if no valid MAC address is valid), we
should free nvm_data before returning an error.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:03:13 +03:00
Luca Coelho
1dad3e0a31 iwlwifi: remove useless iwl_free_nvm_data() function
This function just calls kfree(), so it only obscures the code without
bringing any benefits.  Remove it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:02:58 +03:00
Johannes Berg
e6138c9ca5 iwlwifi: mvm: add documentation for enum iwl_debug_cmds
Add kernel-doc documentation for enum iwl_debug_cmds, linking the
structures used by the commands.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:01:02 +03:00
Johannes Berg
a6a621934e iwlwifi: mvm: disentangle union in TX status struct
This improves documentation, since kernel-doc can't deal with the
union well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:00:41 +03:00
Liad Kaufman
3e73148406 iwlwifi: mvm: fix fw monitor 7000 HW recollecting
To stop and start the FW monitor in the 7000 HW
family we need to use a different bit, otherwise
after stopping it for the first time - it won't
get restarted. Use the correct bitmask.

Note: This fix is only for DRAM collection mode.
      For other modes, an additional fix will be
      needed.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 12:00:28 +03:00
Johannes Berg
7b7cab79b8 iwlwifi: mvm: docs: fix enum link, provide TX response link
Fix the enum link by adding the missing & and provide the link
to the TX response documentation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 11:59:05 +03:00
Johannes Berg
550aba9b8d iwlwifi: mvm: better link scan notification results length
Show the name of the member (scanned_channels) that provides the
length with some better markup.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Liad Kaufman
dd32162da4 iwlwifi: mvm: support aggregations on A000 HW
On A000 HW, the SCD rdptr has only 8 bits allocated
for it, thus when checking if a queue is full, or
when checking if the SSN is equal to the TID's
next_reclaimed, A000 HW should trim the SSN.

Fix this by "normalizing" the SSN to wrap around
0xFF when comparing to the next_reclaimed on A000
HW.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Johannes Berg
87afe9b0f4 iwlwifi: mvm: document status bits
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:02 +03:00
Johannes Berg
6ad0435991 iwlwifi: mvm: don't warn in queue sync on RF-kill
If we happen to be in or get into the queue sync when RF-kill
is asserted, we return from there and warn since there are
still queue sync notifications outstanding. These can't ever
come though, because we're in RF-kill, so don't WARN then.

While at it, also move the warning to the appropriate place,
if the request is not synchronous then we shouldn't warn, but
currently always will.

To make it fast, also trigger the waitq when on rfkill assert.

Fixes: 0636b93821 ("iwlwifi: mvm: implement driver RX queues sync command")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Gregory Greenman
8f6438f72a iwlwifi: mvm: rs: add logs for the wrong antenna case
In case that rate's antenna is wrong at the init stage, it's
very hard to say what went wrong. Add debug data to the already
existing WARN_ON_ONCE.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Johannes Berg
28269897c6 iwlwifi: mvm: make iwl_mvm_update_mcc() easier to follow
Some static checkers (e.g. smatch) complain about the logic, saying that
resp_cp might be leaked. Clearly that isn't true, but making the logic
easier to follow does not result in any significant code changes and makes
the code more readable by moving the NULL check closer to its source.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:01 +03:00
Luca Coelho
fcea37b2cf iwlwifi: mvm: support D0I3_END_CMD at the start of resume
New FW versions require the D0I3_END_CMD to be sent as the first
command to the FW in the resume flow.  If the TLV is set, send that
command first, otherwise keep the original behavior (i.e. send last).

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Luca Coelho
f28b936124 iwlwifi: mvm: make D0I3_END_CMD sync during system resume
There is no need to send D0I3_END_CMD as ASYNC during the system
resume flow.  Additionally, the other flags used are meaningless in
this case (they were just copied from the runtime resume flow), so
remove them all.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg
2f0282db41 iwlwifi: mvm: track and report IBSS manager status to mac80211
Shaul reported that when iwlmvm was sending beacons, it didn't properly
also take ownership of the probe responses. This is because the whole
mac80211 callback (tx_last_beacon) wasn't implemented. Fix that to make
IBSS discovery work better.

Reported-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg
40e86a3619 iwlwifi: mvm: use scnprintf() instead of snprintf()
It's safer to use scnprintf() here because the buffer might
be too short for the full format strings. In most cases
this isn't true because of external limits on the values.

In one case, this fixes a stack data leak.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg
a9c50726ce iwlwifi: mvm: avoid variable shadowing
Avoid one kind of symbol shadowing another in iwl_mvm_flush_sta()
by renaming the function parameter.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:13:00 +03:00
Johannes Berg
aeb8012cdf iwlwifi: mvm: remove pointless num_stored condition
Since we exit if buf->num_stored is 0, there's no need to
check it again later.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Emmanuel Grumbach
6f2f019495 iwlwifi: mvm: avoid unnecessary cache trashing in Tx path
When sending a Tx Command with a Tx packet, we allocate the
Tx command separately from the payload of the packet.
The WiFi MAC header is then copied into the buffer that was
allocated for the Tx Command. This means that this buffer
needs to be big enough to contain both. This is why it is
allocated with iwl_trans_alloc_tx_cmd which returns a
pointer to a newly allocated not zeroed struct
iwl_device_cmd.

The Tx command has a few bit fields and hence it needs to
be zeroed, but all the rest of the buffer doesn't need to
be zeroed since it will either be memcopy'ed with the MAC
header, or not even sent to the device.
This means that we don't need to zero all the
iwl_device_cmd structure, but rather only the size of
the iwl_tx_cmd structure.

Since sizeof(iwl_tx_cmd) - sizeof(iwl_tx_cmd) is about
260 bytes, this can avoid touching 4 cache lines for each
packet.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
David Spinadel
85aeb58cec iwlwifi: mvm: Enable security on new TX API
Install GTKs on AP side for new TX API.
Don't add IV space, it's added by the HW.

While at that fix GCMP abnd GCMP-256 GTK installation
which work similarly to the new TX API.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Liad Kaufman
f45f979dc2 iwlwifi: mvm: disable dbg data collect when fw isn't alive
If FW isn't alive, trying to collect debug data will
result in errors both in driver and in the collected
data, so just warn and leave the collecting function
in this case.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Johannes Berg
0ec971fdad iwlwifi: remove resp_pkt NULL checks
Contrary to what some of the comments say, if rfkill was
asserted the transport will return -ERFKILL instead of
success, if CMD_WANT_SKB was set, so it's not necessary
to check cmd.resp_pkt for being NULL if the return code
was success.

Validate that this is true in iwl_trans_send_cmd().

Most of the other code modifications were done with the
following spatch:
    @@
    struct iwl_host_cmd cmd;
    identifier pkt;
    @@
    <...
    (
    pkt = cmd.resp_pkt;
    ...
    -if (!pkt) { ... }
    |
    pkt = cmd.resp_pkt;
    ...
    -if (WARN_ON(!pkt)) { ... }
    |
    -if (!cmd.resp_pkt) { ... }
    )
    ...>

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Liad Kaufman
664e968be3 iwlwifi: mvm: remove txq EMPTYING_DELBA state for DQA
In DQA mode, there is no need to wait for the TXQ to
clear out after getting a DELBA, since traffic can
continue running on the queue.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-23 00:12:59 +03:00
Johannes Berg
59ae1d127a networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy()
some data into the new space, introduce skb_put_data() for
this.

An spatch similar to the one for skb_put_zero() converts many
of the places using it:

    @@
    identifier p, p2;
    expression len, skb, data;
    type t, t2;
    @@
    (
    -p = skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    |
    -p = (t)skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, len);
    |
    -memcpy(p, data, len);
    )

    @@
    type t, t2;
    identifier p, p2;
    expression skb, data;
    @@
    t *p;
    ...
    (
    -p = skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    |
    -p = (t *)skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, sizeof(*p));
    |
    -memcpy(p, data, sizeof(*p));
    )

    @@
    expression skb, len, data;
    @@
    -memcpy(skb_put(skb, len), data, len);
    +skb_put_data(skb, data, len);

(again, manually post-processed to retain some comments)

Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:37 -04:00
Kalle Valo
833689044e First batch of iwlwifi driver patches 4.13
* Loads of FW API documentation improvements (for tools and htmldoc);
 * Continued work for the new A000 family;
 * Bumped the maximum supported FW API to 31;
 * Improve the differentiation between 8000, 9000 and A000 families;
 * A lot of fixes and cleanups here and there;
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEF3LNfgb2BPWm68smoUecoho8xfoFAlk3AR8ACgkQoUecoho8
 xfr21w//YzwKCVCR568wtQ0kZwLaPUos/FCeEgrFCpcAEe//wZZFZphH/z4mOLmX
 xXRYmqYaQuztfqUKO/7Onw2djuXQNJJtHp+AdCCnzyMLKz6F6YbBG+M3755nM2Wl
 XDVNbmRsmlGKvc2RCSoTSXSdNiT9TND9nYyzPFl/4x+fSD9olsjPvIVk1sNn2o69
 znrcPJZJWVeYB/1uqLTqOQ0Xdm9r4tEYnnI+VsRMlwsOBQp6kgPMHEjoZdrV3RGI
 qzgu0WNnAqqy1W2QOAi6iiU1jLm5VJ9CKyTT/m/4u9GypfUOm0mBKWuykB5klswH
 6lJWz/P4dK7WZg7udCySeQrXbwiIlH0HF8uUoabDJHJd7LUXvEAljsYzG9B/cU0g
 s4/2fA13eGDKf5vJULHQKLD4OJf82S7YhMiMM855pj/xVa1FZpupVACJ1cWik4n+
 MlK8scXllrrjuFG1C7VDq7Jj3uY1ZxIN+TtuUl5vzgJ4n7buqqOcetDN07XqIwGZ
 HLoA5uhdyr12mUDbtiicq9q/wu3bFD1CMDllINoBcmh7Psr1Vng0hhWsLJigvTUI
 5+fKOYMNznjrBmcVvI/ZgRVW1Zo7+XCEOQpu25zOmoP/5vIpc2yA7kDvUgDfyzhw
 3+KL+rw6IX3kfOWIuJTMq6iMtFIdRTc0K5zndC972maXUAE3wWY=
 =oYeO
 -----END PGP SIGNATURE-----

Merge tag 'iwlwifi-next-for-kalle-2017-06-06' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

First batch of iwlwifi driver patches 4.13

* Loads of FW API documentation improvements (for tools and htmldoc);
* Continued work for the new A000 family;
* Bumped the maximum supported FW API to 31;
* Improve the differentiation between 8000, 9000 and A000 families;
* A lot of fixes and cleanups here and there;

kvalo: There were conflicts iwl_mvm_stop_device() and
iwl_mvm_tcool_set_cur_state(). The former was easy but latter needed more
thought. Apparently the mutex was taken too late, so I fixed so that the mutex
is taken first and then check for iwl_mvm_firmware_running().
2017-06-12 19:29:39 +03:00
Mordechai Goodstein
fccdbaa849 iwlwifi: fw-api: cleanup cycle includes
The include in the deleted file are included in the fw-api.h file.
Which caused a cycle include in the dependencies.

Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-05 23:34:30 +03:00
Johannes Berg
12edae8641 iwlwifi: mvm: remove SCAN_GROUP
The firmware no longer uses this command group, so remove it from
the driver as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-06-05 23:34:30 +03:00