When re-associating a station, the nss was set back to
maximum value even if user had configured small number
of tx chains. So, pay attention to user's config in
this case as well.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
It appears it takes more than just setting the
hardware's chainmask to make things work well. Without
this patch, a vdev would only use 1x1 rates when chainmask
was set to 0x3.
Setting the 'nss' (number of spatial streams) on the vdev
helps the firmware's rate-control algorithm work properly.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
There are not many of these messages producted by the
firmware, but they are generally fairly useful, so make it easy to print them
with a separate debug level.
kvalo: fix commit log, rename debug level
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
There are better ways to get the kernel information, use the
utsname and omit the version code entirely since it's duplicate.
The version magic is rather useless anyway
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Fragmented Rx wasn't reporting everything. With
the reworked Rx code it's very easy to fix it.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This makes it more in line with the new Rx path.
It also makes the code more reusable because Rx
descriptor is more accessible.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The original fix has been moved into a different
place in the code.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This creates a single, common path for MSDU,
A-MSDU and fragmented Rx.
Hopefully this will make it easier to understand
Rx path and make it easier to work with.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Make the rx_confused be handled by the rx
indication handlers instead of the buffer popping
function.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Since htt_rx_mpdu_status isn't used anymore
(instead attention flags are used) simplify the
loop.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Instead of using manual sk_buff linking via ->next
use sk_buff_head. It's more robust, cleaner and
there's plenty of helper functions in kernel
already to manage sk_buff_head.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Kalle Valo <kvalo@qca.qualcomm.com> says:
"One ath6kl patch and rest for ath10k, but nothing really major which
stands out. Most notable:
o fix resume (Bartosz)
o firmware restart is now faster and more reliable (Michal)
o it's now possible to test hardware restart functionality without
crashing the firmware using hw-restart parameter with
simulate_fw_crash debugfs file (Michal)"
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix to use v10.2 wmi call for firmware v10.2.
It turned out that peer association function was using
v10.1 wmi call for v10.2 firmware during code review.
Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This will enable AP mode to change channel width dynamically
based on 20/40 intolerance report sent by associated client.
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This patch would help bring up wifi interface with default board
data in case of failures in otp download. It is useful for initial
calibration.
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
For packet log, the transmitted frame 802.11 header alone is sufficient.
Recording entire packet is also consuming lot of disk space. To optimize
this, tx and rx data tracepoints are splitted into header and payload
tracepoints.
To record tx ieee80211 headers
trace-cmd record -e ath10k_tx_hdr
To record complete packets
trace-cmd record -e ath10k_tx_hdr -e ath10k_tx_payload
Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
following:
* large mac80211-hwsim changes from Ben, Jukka and a bit myself
* OCB/WAVE/11p support from Rostislav on behalf of the Czech Technical
University in Prague and Volkswagen Group Research
* minstrel VHT work from Karl
* more CSA work from Luca
* WMM admission control support in mac80211 (myself)
* various smaller fixes, spelling corrections, and minor API additions
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Merge tag 'mac80211-next-for-john-2014-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg <johannes@sipsolutions.net> says:
"This relatively large batch of changes is comprised of the
following:
* large mac80211-hwsim changes from Ben, Jukka and a bit myself
* OCB/WAVE/11p support from Rostislav on behalf of the Czech Technical
University in Prague and Volkswagen Group Research
* minstrel VHT work from Karl
* more CSA work from Luca
* WMM admission control support in mac80211 (myself)
* various smaller fixes, spelling corrections, and minor API additions"
Conflicts:
drivers/net/wireless/ath/wil6210/cfg80211.c
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Drivers might want to know also when mac80211 has
completed reconfiguring after resume (e.g. in order
to know when frames can be passed to mac80211).
Rename restart_complete() to a more-generic reconfig_complete(),
and add a new enum to indicate the reconfiguration type.
Update the current users with the new prototype.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Firmware was crashing when we were trying to warm reset it
after suspend. This was due to the fact that target registeres
can be accessed only if the hardware is awaken.
This patch makes sure to awake the device also on the hif up,
not only in case of probe call.
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
In some cases hw recovery was taking an absurdly
long time due to ath10k waiting for things that
would never really complete.
Instead of waiting for inevitable timeouts poke
all completions and wakequeues and check if it's
still worth waiting.
Reading/writing ar->state requires conf_mutex.
Since waiters might be holding it introduce a new
flag CRASH_FLUSH so it's possible to tell waiters
to abort whatever they were waiting for.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Until now it was possible to simulate soft and
hard fw crashes but it wasn't possible to trigger
an immediately hw restart itself (without the fw
crash).
This can be useful when stress testing hw
restarting stability, e.g. during heavy tx/rx
traffic.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
While testing other things I've found that CE
items aren't cleared properly. This could lead to
null dereferences in BMI.
To prevent that make sure CE revoking clears the
nbytes value (which is used as a buffer completion
indication) and memset the entire CE ring data
shared between host and target when
(re)initializing.
Also make sure to check BMI xfer pointer and print
a splat instead of crashing the kernel.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Currently hif_power_up performs effectively a
reset and hif_stop resets the chip as well so
there's no point in resetting here.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The power up procedure was overly complex due to
warm/cold reset workarounds and issues.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
One of the problems with warm reset I've found is
that it must be guaranteed that copy engine
registers are not being accessed while being
reset. Otherwise in worst case scenario the host
may lock up.
Instead of using sleeps and hoping the device is
operational in some arbitrary timeframes use
firmware indication register.
As a side effect this makes driver
boot/stop/recovery faster.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Make ath10k_pci_init_pipes() effectively only
alter shared target-host data.
The per_transfer_context is a host-only thing.
It is necessary to preserve it's contents for a
more robust ring cleanup.
This is required for future warm reset fixes.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Rts threshold was being configured instead of
fragmentation threshold.
Keep in mind available firmware binaries don't
seem to support fragmentation anyway so this
doesn't fix fragmentation threshold per se.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
When user space requests survey info, it is useful to know which of the survey
data refers to the channel that is currently actively being used. One of the
use cases is getting the current channel noise for status output. Without this
flag you would have to look up the channel separately and then compare it
against the frequency in the survey output in user space.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Instead of defining a completely new tracepoint
use an existing tracepoint class.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Fundamentally this was wrong. Tsf is only valid
in last MPDU of a PPDU. This means tsf value was
wrong most of the time during heavy traffic.
Also I don't see much point in exposing a
redundant (and broken) tsf value. Userspace can
already read it from the dumped rx descriptor
buffer.
Cc: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Once driver entered the rx_confused state it would
refuse to rx even after firmware is restarted.
Make sure to clear it so that rx works after, e.g.
hw restart or after all interfaces are stopped.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
In theory it was possible to drain entire HTT Rx
ring via fragmented Rx leading to Rx lockup.
In practice non-data traffic would always trigger
replenishment via the regular Rx handler.
For correctness sake make sure to replenish the
ring on fragmented Rx.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The netbuf pop can return NULL. Make sure to check
for that. It shouldn't happen but better safe than
sorry.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
There's little point in dropping, e.g. frames with
FCS error early in ath10k.
This simplifies amsdu_allowed() and gets rid of
htt_rx_mpdu_status usage finally.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Treat non-chained and chained popping the same
way. Also this makes netbuf pop fully symmetrical
to (re)filling.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Tracing function was called before buffers were
unmapped from DMA.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Use the globally defined ieee80211 values instead
of re-defining them in the driver again.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The rx descriptor variable was no longer used in
the rx handler.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
HTT_RX_IND_MPDU_STATUS_MGMT_CTRL was pretty greedy
and because of that ath10k ended up dropping
Control Frames as well as Null Func frames.
Reported-by: Okhwan Lee <ohlee@mwnl.snu.ac.kr>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Calling init to reinit ce pipe state would also
re-set all static structure links and setting
(which don't change over driver lifecycle).
Make it so alloc links structures and initializes
static data and init part to setup state
variables and clear stuff.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This was the final missing bit to making sure the
device doesn't assert interrupts to host.
This should fix possible race when target crashes
during driver teardown.
This also removes an early warm reset workaround
during pci probing.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
If MSI isn't configured device ROM program expects
legacy interrupts to be enabled before it can
fully boot. Don't forget to disable legacy
interrupts after that.
While at it re-use the legacy irq enabling helper
instead of calling ath10k_pci_write32().
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This simply changes the source for txpower setup.
It does not make ath10k use different txpower
values for different vifs.
This will make it easier to implement chanctx in
ath10k in the future.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Using global channel won't work with chanctx. Try
to determine the channel from the information
provided in the wmi event itself alone. This
should be sufficient.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The code can be symmetrical so make it so. This
makes it easier to understand and work with.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
It doesn't make much sense to reconfigure peer
completely upon reassociation. This will make it
easier to have a more uniform association code
across different modes.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
There's no need to pass bss_conf explicitly as it
is accessible via vif pointer. This requires
slight changes in function prototypes. While at it
clean up listen interval workaround/command.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
A frequent request have been to be able to provide calibration data from a
file as some of the AP devices store the calibration data on an MTD partition.
This patchset adds support for that and also makes it easier to add Device Tree
support later on.
The calibration data is found by using the id string provided by dev_name()
using this format:
cal-<bus>-<id>.bin
With PCI the id string contains bus, slot and func values. For example for a
PCI device in bus 2 slot 0, ath10k will try to retrieve a calibration data from
a file:
/lib/firmware/ath10k/cal-pci-0000:02:00.0.bin
The calibration data sequence is:
1. Check with request_firmware() if there's a calibration file
("cal-<bus>-<id>.bin") on the filesystem for this device. If yes, use that. If
not, goto 2
2. Check if otp.bin is able to successfully load the calibration data
from OTP. If yes, use that. If not, goto 3.
4. Print an error message that no calibration data found and stop driver
initialization for this device.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
