Move beacon_mask in mt76_dev data structure since it is used by
all drivers
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Move mac_work delayed work in mt76_dev data structure since
it is used by all drivers and it will be reused adding mac work to
mt7615
Signed-off-by: Lorenzo Bianconi <[email protected]>
Move most of beaconing code into separate file and separate beacon
initialization for USB and MMIO as pre TBTT implementation for USB
will be different.
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Use a separate lock and spin_trylock to avoid disabling interrupts.
Should improve performance and latency
Signed-off-by: Felix Fietkau <[email protected]>
Remove mt76_queue dependency from tx_complete_skb function pointer and
rely on mt76_tx_qid instead. Remove flush from tx_complete_skb
signature. This is a preliminary patch to introduce mt76_sw_queue
support
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Full tx blocking (as opposed to CCA blocking) should only happen if there
is a continuous non-802.11 signal above the energy detect threshold.
Unfortunately the ED/CCA counter can't detect that, as it also counts 802.11
signals as busy.
Similar to the vendor code, implement a learning mode that waits until the AGC
gain has already been adjusted to the lowest value (due to false CCA events),
and the number of false CCA events still remains high, and the blocking
threshold is exceeded for more than 5 seconds.
Signed-off-by: Felix Fietkau <[email protected]>
It needs to be always enabled for 76x2 and conditionally enabled/disabled
for 76x0. Since mt76x2_mac_stop clears this bit, ensure that it is enabled
in mt76x02_edcca_init
Signed-off-by: Felix Fietkau <[email protected]>
When the timer is already running, there is no need to reset the counter,
because the drift will remain the same.
Signed-off-by: Felix Fietkau <[email protected]>
Block only when the busy time reaches 92%, as lower values can be reached with
heavy 802.11 traffic as well.
Signed-off-by: Felix Fietkau <[email protected]>
Based on system load and time needed by other calibration runs, the time
between dev->mac_work runs can vary quite a bit.
Calculate busy time based on the actual time difference in order to avoid
potentially over-estimating busy time, which could lead to unnecessary tx
blocking.
Signed-off-by: Felix Fietkau <[email protected]>
ED/CCA Tx blocking checks need to be run every 100 ms in order to avoid
triggering too late and keeping tx blocking on for too long
Signed-off-by: Felix Fietkau <[email protected]>
Software encrypted packets can be passed not just through the drv_tx callback,
but also through the intermediate tx queue.
In order to deal with that, move the override to mt76x02_mac_write_txwi and
also take care of filling in the per-packet rate information
Signed-off-by: Felix Fietkau <[email protected]>
Configure beaconing on USB devices without PS buffering support.
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
BSSID is not strtirct related with beaconing (for example we can have
2 STA vifs) and more related with MAC address, so initaize BSSID when
setting MAC address.
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Since ccmp_pn is u8 *, the second half needs to start at array index 4
instead of 0. Fixes a connection stall after a certain amount of traffic
Fixes: 23405236460b9 ("mt76: fix transmission of encrypted management frames")
Cc: [email protected]
Signed-off-by: Felix Fietkau <[email protected]>
Set the per-chain signal value for chain 0 and simplify the code
(no need for a loop for just one extra chain)
Signed-off-by: Felix Fietkau <[email protected]>
Take into account device rx stream in mt76x02_mac_process_rate
in order to not report wrong number of rx spatial stream to mac80211.
The issue has been reported on mt76x0 device which is 1x1:1 however
the hw sometimes reports rx nss equal to 2
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
On MT76x2, the hardware does not report tx status in the FIFO register,
if the packet id is 0.
Change the allocation of packet IDs to use 0 for no-ack packets, 1 for
non-probing packets and 2-255 for packets with tx status requested.
Fixes rate control issues
Signed-off-by: Felix Fietkau <[email protected]>
Port mt76x02_check_tx_hang watchdog from vendor driver in order to
perform a device reset when tx mac/dma logic hangs. Tx mac/dma stuck
has been observed when the device is heavy loaded or in a noisy
environment. Moreover introduce wdt delayed work in order to run
tx_hang watchdog. For the moment run mt76x02_check_tx_hang watchdog
just on mt76x2 devices since the issue has not been observed on mt76x0
driver yet
Signed-off-by: Lorenzo Bianconi <[email protected]>
Do not set bw variable to zero for legacy rates since it is already
initialized to zero. Moreover set nss to 1 just for legacy rates
since nss will be properly set for VHT/HT rates
Signed-off-by: Lorenzo Bianconi <[email protected]>
Ported from the reference driver. Should fix compliance with ETSI
regulatories on preventing transmission while energy detect values
are above the threshold.
The code has been tested using an ath9k device running tx99 as
noise generator
Signed-off-by: Lorenzo Bianconi <[email protected]>
Configure protection based on information that are provided to
us either by remote AP or by hostapd via HT operation IE.
Signed-off-by: Stanislaw Gruszka <[email protected]>
Use set_rts_threshold calback to enable/disable threshold only for
legacy traffic.
Protection for HT and VHT traffic is defined by HT operation element
and it's provided by remote AP or by hostapd.
Signed-off-by: Stanislaw Gruszka <[email protected]>
Grab mt76_dev mutex in mt76x02_mac_work handler since it runs
concurrently with mt76x{0,2}_set_channel routines
Signed-off-by: Lorenzo Bianconi <[email protected]>
Reconfigure properly MT_MAC_SYS_CTRL register after mac sw-reset
in mt76x02_check_mac_err routine
Fixes: 73556561ab9f ("mt76x0: use mt76x02_mac_work as stats handler")
Signed-off-by: Lorenzo Bianconi <[email protected]>
There is some code in the mac80211 tx status processing code that could
potentially call back into the tx codepath.
To avoid deadlocks, make sure that no tx related spinlocks are taken
during the ieee80211_tx_status call.
Signed-off-by: Felix Fietkau <[email protected]>
MT76x2/MT76x0 has somewhat unreliable tx status reporting, and for that
reason the driver currently does not report per-skb tx ack status at all.
This breaks things like client idle polling, which relies on the tx ack
status of a transmitted nullfunc frame.
This patch adds code to report skb-attached tx status if requested by
mac80211 or the rate control module. Since tx status is polled from a
simple FIFO register, the code needs to account for the possibility of
tx status events getting lost.
The code keeps a list of skbs for which tx status is required and passes
them to mac80211 once tx status has been filled in and the DMA queue is
done with it.
If a tx status event is not received after one second, the status rates
are cleared, and a succesful ACK is indicated to avoid spurious disassoc
during assoc or client polling.
Signed-off-by: Felix Fietkau <[email protected]>
Fixes a crash that could occur if a frame is sent to a station, but the
station's wcid was not used (e.g. for software encrypted mgmt tx)
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76x02_set_rts_threshold and mt76x02_mac_set_tx_protection
routines in mt76x02-lib module and remove duplicated code in mt76x0
and mt76x2 drivers. Remove pci_mac.c and mt76x0/mac.c since now are
empty files
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76x02_beacon mac routines in mt76x02_mac.c in
order to be reused by mt76x0 driver adding AP support
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Move mt76x02_mac_set_short_preamble routine in mt76x02-lib module
since it is shared between mt76x0 and mt76x2 drivers
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Add submit_urb and rx_urb static tracepoints in mt76-usb module.
Move trace_mac_txstat_fetch in mt76x02_mac_load_tx_status routine
in order to be available to usb drivers. Moreover remove
no longer used mt76x0/trace.{c,h}
Signed-off-by: Lorenzo Bianconi <[email protected]>
Make previously exported functions static where possible
Acked-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
Use mt76x02_mac_work utility routine as stats workqueue handler
and remove duplicated code. Moreover run mac stuck check in
mt76x02_mac_work for client interfaces.
Remove no longer used avg_ampdu_len and mt76x02_mac_stats data
structure in mt76x02_dev
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
