Remove MT76_STATE_PM in mt7615_init_device() and introduce
__mt7663s_mcu_drv_pmctrl for fw loading in mt7663s.
This patch fixes a crash at bootstrap for device (e.g. mt7622) that do
not support runtime-pm
Fixes: 7f2bc8ba11 ("mt76: connac: introduce wake counter for fw_pmctrl synchronization")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/e5a2618574007113d844874420f7855891abf167.1621085028.git.lorenzo@kernel.org
Mitigate A-MSDU injection attacks (CVE-2020-24588) by detecting if the
destination address of a subframe equals an RFC1042 (i.e., LLC/SNAP)
header, and if so dropping the complete A-MSDU frame. This mitigates
known attacks, although new (unknown) aggregation-based attacks may
remain possible.
This defense works because in A-MSDU aggregation injection attacks, a
normal encrypted Wi-Fi frame is turned into an A-MSDU frame. This means
the first 6 bytes of the first A-MSDU subframe correspond to an RFC1042
header. In other words, the destination MAC address of the first A-MSDU
subframe contains the start of an RFC1042 header during an aggregation
attack. We can detect this and thereby prevent this specific attack.
For details, see Section 7.2 of "Fragment and Forge: Breaking Wi-Fi
Through Frame Aggregation and Fragmentation".
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210513070303.20253-1-nbd@nbd.name
The hardware can only handle 64 subframes in rx direction and 128 for tx.
Improves throughput with APs that can handle more than that
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210507100211.15709-2-nbd@nbd.name
The MT7921 firmware needs this to enable tx A-MPDU properly
Reported-by: Jayden Kuo (郭育辰) <Jayden.Kuo@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210507100211.15709-1-nbd@nbd.name
Check dummy reg to reinitialized WPDMA during driver_own operation
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
In order to remove duplicated code, move mt76_token_init in
mt76_alloc_device routine
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Precision %.*s was intended instead of width %*s. The original code
is potentially an information leak.
Fixes: c7cc5ec573 ("mt76: mt7921: rework mt7921_mcu_debug_msg_event routine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Precision %.*s was intended instead of width %*s. The original code
will still print unintended data from beyond the end of skb->data.
Fixes: 665b2c780d ("mt76: mt7915: limit firmware log message printk to buffer length")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Precision "%.*s" was intended instead of width "%*s". The original code
will print garbage from beyond the end of the skb->data.
Fixes: d76d6c3ba2 ("mt76: mt7615: limit firmware log message printk to buffer length")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce napi_threaded debugfs knob in order to enable/disable NAPI
threaded support
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
mt7921_mcu_sta_add will be used to add and remove wtbl entries.
Create broadcast wtbl entry after AP association
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
mt7921_stop should put device in fw_own state to reduce
power consumption.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
In order to wake the device less frequently and so reduce power
consumpation, unschedule mac_work before going to sleep
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Similar to mt7921, introduce awake and doze time accounting
for runtime pm.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Increase mt7921 mac work timeout in oder to have move sleep
opportunities
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
since mcu_reset it used only by mt7921, move the reset callback to
mt7921_mcu_parse_response routine and get rid of the function pointer.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Do not read rf value from efuse when driver is configured to
use flash mode.
Tested-by: Bruce Chuang <bruce-ss.chuang@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Move token management in mt76 common module since it is shared between
mt7615, mt7915 and mt7921 drivers
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Move token_lock, token and token_count data structures in mt76_dev.
This is a preliminary patch to move token management in mt76 common
module since it is shared by mt7615, mt7915 and mt7921 drivers.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Enable the deep sleep mode in suspend handler to reduce the power
consumption further.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt76_connac_mcu_set_deep_sleep to enable deep sleep mode
and will be activated immediately when the host returns the ownership
to the device.
Co-developed-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Co-developed-by: YN Chen <YN.Chen@mediatek.com>
Signed-off-by: YN Chen <YN.Chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Add mt7921_wpdma_reinit_cond to check dummy reg if driver needs to
reinitialized WPDMA after driver_own operation
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt7921_dma_enable and mt7921_dma_disable utilities routine in
order for code reusing between mt7921_dma_reset and mt7921_dma_init.
This is a preliminary patch to reset dma during device driver_own
request.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt7921_wpdma_reset routine to reset wpdma during chip reset
or driver_own request.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Move mt7921_dma_reset routine in dma.c and make mt7921_dma_prefetch
static. Moreover add force parameter to mt7921_dma_reset signature.
This is a preliminary patch to reset dma mt7921_mcu_drv_pmctrl.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Currently the assignment of idx dereferences pointer sta before
sta is null checked, leading to a potential null pointer dereference.
Fix this by assigning idx when it is required after the null check on
pointer sta.
Addresses-Coverity: ("Dereference before null check")
Fixes: a4a5a430b0 ("mt76: mt7615: fix TSF configuration")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Enable sw interrupts in order to wake the device from deep sleep
receiving packets
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce awake and doze time accounting for runtime pm.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
since tx/rx path is now relying pm ref counting, get rid of MT76_STATE_PM
check in the tx path
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Simplify the code using a wait_queue_head_t instead of a completion to
wait the chip is fully awake in mt76_connac_pm_wake routine
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
In order to not break runtime-pm, do run mt76_txq_schedule_all in
mt7615_set_channel/mt7921_set_channel but rely on mt76_worker_schedule
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Rely on mt76_connac_pm_ref/mt76_connac_pm_unref utility routines in
mt7615_led_set_config
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
move scanning check from mt76_connac_power_save_sched routine
to mt7921_pm_power_save_work/mt7615_pm_power_save_work ones
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Remove useless MT76_STATE_PM check in mt7921_mac_work since
mt7921_mutex_acquire will wake up the device if necessary
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Get rid of MT76_STATE_PM chec in mt7615_mac_tx_free and
mt7921_mac_tx_free since we already rely on mt76_connac_pm_unref in the
NAPI callback.
Remove mt76_connac_power_save_sched calls in mt7615_mac_tx_free and
mt7921_mac_tx_free
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
In order to avoid synchronization races between tx and rx path, rely on
mt76_connac_skip_fw_pmctrl putting the chip in sleep mode for mt7921 and
mt7663 devices
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
In order to avoid synchronization issues between wake and ps works,
cancel ps_work in mt76_connac_pm_wake routine
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt7615_poll_rx rx napi callback for mt7663.
Do not access device registers in tx/rx napi if the device is not awake.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt7921_poll_rx rx napi callback for mt7921.
Do not access device registers in tx/rx napi if the device is not awake.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Add the capability to define a custom rx napi callback for each driver.
This is a preliminary patch to properly support runtime-pm on rx side
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt7615_tx_worker routine as mt76 tx worker callback for
mt7663.
Rely on mt76_connac_pm_ref/mt76_connac_pm_unref to check PM state and
increment/decrement wake counter
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce mt7921_tx_worker routine as mt76 tx worker callback for
mt7921.
Rely on mt76_connac_pm_ref/mt76_connac_pm_unref to check PM state and
increment/decrement wake counter
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce wake counter and related spinlock in order to synchronize
tx/rx path and fw_pmctrl request.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce a mutex in order to avoid a race between mt7615_mcu_lp_drv_pmctrl and
mt7615_mcu_fw_pmctrl routines since they are run two independent works
Fixes: 1f549009b5 ("mt76: mt7615: do not request {driver,fw}_own if already granted")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Introduce a mutex in order to avoid a race between mt7921_mcu_drv_pmctrl and
mt7921_mcu_fw_pmctrl routines since they are run two independent works
Fixes: 1d8efc741d ("mt76: mt7921: introduce Runtime PM support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
