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: NFelix Fietkau <nbd@nbd.name>

Move WCID tx rate configuration at device bootstrap since
the related register are always set to 0
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NFelix Fietkau <nbd@nbd.name>

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: NFelix Fietkau <nbd@nbd.name>

Make functions static where possible
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_beacon mac routines in mt76x02_mac.c in
order to be reused by mt76x0 driver adding AP support
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_mac_set_short_preamble routine in mt76x02-lib module
since it is shared between mt76x0 and mt76x2 drivers
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Make previously exported functions static where possible
Acked-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_mac_work routine in mt76x02_mac.c in order to be reused by
mt76x0 driver to read device statistics
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_update_channel routine in mt76x02-lib module in
order to be reused by mt76x0 driver adding get_survey support
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Disable ldpc coding for mt76x0 devices. Morover remove
mt76x02_mac_fill_txwi routine since it is used just in
mt76x02_mac_write_txwi
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Use mt76x02_dev data structure as reference in mt76x02_txrx.c
instead of mt76_dev
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Use mt76x02_dev data structure as reference in mt76x02_mac.c
instead of mt76_dev
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_tx_complete mt76x02-lib module in order to
be reused by mt76x0 drivers for irq unification.
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move mt76x02_mac_setaddr utility routine in mt76x02-lib
module and remove duplicated code. This is a preliminary patch
to unify eeprom code between mt76x2 and mt76x0 driver
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Merge code filing txwi fields the same way on mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Merge mac_process_rate from mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Merge send_tx_status and helper functions from mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Unify load/fetch tx status from mt76x0 and mt76x2
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Use common sta_rate_tbl_update on mt76x0 and mt76x2.
mt76x0 do not have support TPC (transmision power control) implmented,
msta->wcid.max_txpwr_adj is only set for mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

First part of unifying mt76x02_sta structure between mt76x0 and mt76x2.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Move mt76x02_mac_wcid_set_drop to common code and use it in mt76x0.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Merge mt76x{0,2}_mac_wcid_setup into common code.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Merge mt76x{0,2}_mac_wcid_set_key into common code.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Merge mt76x{0,2} mac_shared_key_setup into common code.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Merge mt76x{0,2} mac_get_key_info into new mt76x02_mac.c file.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Create new mt76x02_mac.h for common mac functions of mt76x0 and mt76x2
and unity wait_for_mac for both drivers.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Since MT_TXD_INFO, MT_MCU_MSG and MT_RX_FCE_INFO definitions are in
common between mt76x2u, mt76x2 and mt76x0u move them in dma.h in order
to reuse usb code supporting mt76x2u and mt76x0u based devices
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Despite this issue is not harmful since it is not actually used in
mt76 driver, fix DMA txinfo bitmask definition

Fixes: 7bc04215 ('mt76: add driver code for MT76x2e')
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

MT76x2e is a 2x2 PCIe 802.11ac chipset by MediaTek. This driver has full
support for AP, station, ad-hoc, mesh and monitor mode.
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>