In the HE capabilities, spell A-MSDU correctly, not "A-MDSU".
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.9e6ff1af1181.If6868bc6902ccd9a95c74c78f716c4b41473ef14@changeidSigned-off-by: NJohannes Berg <johannes.berg@intel.com>

The A-MPDU length exponent extension is defined differently in
802.11ax D6.1, align with that.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.c2a257d3e2df.I3455245d388c52c61dace7e7958dbed7e807cfb6@changeidSigned-off-by: NJohannes Berg <johannes.berg@intel.com>

Some names were changed, align that with the spec as of
802.11ax-D6.1.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.b1e5fbab0d8c.I3eb6076cb0714ec6aec6b8f9dee613ce4a05d825@changeidSigned-off-by: NJohannes Berg <johannes.berg@intel.com>

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NGuobin Huang <huangguobin4@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: NJunlin Yang <yangjunlin@yulong.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

clang points out a possible corner case in the mt7915_tm_set_tx_cont()
function if called with invalid arguments:

drivers/net/wireless/mediatek/mt76/mt7915/testmode.c:593:2: warning: variable 'mode' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
        default:
        ^~~~~~~
drivers/net/wireless/mediatek/mt76/mt7915/testmode.c:597:13: note: uninitialized use occurs here
        rateval =  mode << 6 | rate_idx;
                   ^~~~
drivers/net/wireless/mediatek/mt76/mt7915/testmode.c:506:37: note: initialize the variable 'mode' to silence this warning
        u8 rate_idx = td->tx_rate_idx, mode;
                                           ^

Change it to return an error instead of continuing with invalid data
here.

Fixes: 3f0caa3c ("mt76: mt7915: add support for continuous tx in testmode")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Commit b102f0c5 ("mt76: fix array overflow on receiving too many
fragments for a packet") fixes a possible OOB access but it introduces a
memory leak since the pending frame is not released to page_frag_cache
if the frag array of skb_shared_info is full. Commit 93a1d479
("mt76: dma: fix a possible memory leak in mt76_add_fragment()") fixes
the issue but does not free the truncated skb that is forwarded to
mac80211 layer. Fix the leftover issue discarding even truncated skbs.

Fixes: 93a1d479 ("mt76: dma: fix a possible memory leak in mt76_add_fragment()")
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/a03166fcc8214644333c68674a781836e0f57576.1612697217.git.lorenzo@kernel.org

Clang points out a mistake in the error handling in
mt7921_mcu_tx_rate_report(), which tries to dereference a pointer that
cannot be initialized because of the error that is being handled:

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:409:3: warning: variable 'stats' is uninitialized when used here [-Wuninitialized]
                stats->tx_rate = rate;
                ^~~~~
drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:401:32: note: initialize the variable 'stats' to silence this warning
        struct mt7921_sta_stats *stats;
                                      ^
Just remove the obviously incorrect line.

Fixes: 1c099ab4 ("mt76: mt7921: add MCU support")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210225145953.404859-2-arnd@kernel.org

Modifying the tx buffer list too early can leak DMA mappings
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210216135119.23809-2-nbd@nbd.name

When running out of room in the tx queue after calling drv->tx_prepare_skb,
the buffer list will already have been modified on MT7615 and newer drivers.
This can leak a DMA mapping and will show up as swiotlb allocation failures
on x86.

Fix this by moving the queue length check further up. This is less accurate,
since it can overestimate the needed room in the queue on MT7615 and newer,
but the difference is small enough to not matter in practice.
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210216135119.23809-1-nbd@nbd.name

Similar to mt7921 devices, introduce coredump support for mt7663 chipset
Co-developed-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce coredump support to mt7921 driver.

The coredump would be produced when MCU met the fatal error or driver
sent out the specific cmd to force trigger it.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Enable MSI interrupts for mt7921 driver
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Register regdomain notifier to determine the channel domain the hw scan
should rely on.
Co-developed-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce runtime PM to mt7921 driver
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Rely on mt76_connac_mcu module for suspend and WoW support and remove
duplicated code
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Rely on mt76_connac_mcu module for sched_scan and hw_scan and remove
duplicated code
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Rely on mt76_connac_mcu common library and remove duplicated code
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce suspend/resume and WoW (Wake-on-WoWLAN) support to mt7921
driver to allow remote wakeu-up from the suspend state.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

If device has enabled beacon hw filter rx beacons are not reported to
the host. Introduce beacon_loss mcu event to trigger mac80211 mlme
connection state machine in this configuration.
IEEE80211_VIF_BEACON_FILTER has not set in vif flags since hw beacon
filter is not enabled yet
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce support for hw beacon filter available in the mt7921 firmware.

According to mt7921e firmware, enabling hardware filter would rely on
mt7921_mcu_uni_bss_bcnft and disabling hardware filter still rely on legacy
mt7921_mcu_set_bss_pm.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Enable 802.11 power-save support available in mt7921 firmware
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

introduce schedule scan to control mt7921 firmware to do background scan in
defined plan to see if the matched SSID is available.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Add debugfs support to dump driver statistics and hardware details.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce support for mt7921e 802.11ax (Wi-Fi 6) 2x2:2SS chipset.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Filling ieee80211_ops with the mt7921 operations.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Add EEPROM support to MT7921 to determine the capability the card has
such as indentificaiton, MAC address, the band and antenna number the
card able to support.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Add DMA and register access support to MT7921e driver to set up the link
for the data movement between the host and MT7921 MAC, or the host and
MT7921 MCU.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

MT7921 contains a microprocessor with which the host can use command/event
to communicate to implement offload features such as establish connection,
hardware scan and so on. The host has to download the ROM patch, RAM
firmware and finally activate the MCU to complete the MT7921
initialization.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Add Rx packet description parsing, Tx packet description compositon, handle
packet recycling and provide MAC information mt76 core needs to support
mac80211.
Co-developed-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSoul Huang <Soul.Huang@mediatek.com>
Signed-off-by: NSean Wang <sean.wang@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move power_save common code shared between mt7663 and mt7921 in
mt76_connac module
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move pm mt7663 data structure in mt76_connac.h introducing
mt76_connac_pm data struct. This is a preliminary patch to share pm code
between mt7663 and mt7921
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move WoW and suspend code in mt76_connac_mcu module in order to be reused in
mt7615 and mt7921 drivers
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Move hw_scan/sched_scan in mt76_connac_mcu module in order to be reused in
mt7615 and mt7921 drivers
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce mt76_connac common mcu library for code sharing between mt7615 and
mt7921 devices
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Introduce mt76_vif data structure to share common fields between
mt7615_vif and mt7921_vif and create a mcu common library
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Fix a memory leak in mt76_add_fragment routine returning the buffer
to the page_frag_cache when we receive a new fragment and the
skb_shared_info frag array is full.

Fixes: b102f0c5 ("mt76: fix array overflow on receiving too many fragments for a packet")
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Acked-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/4f9dd73407da88b2a552517ce8db242d86bf4d5c.1611616130.git.lorenzo@kernel.org

With a maximum length of 7991, the radio sometimes locks up under load when
transmitting A-MSDU frames to lots of stations. Using the lower limit makes
it work reliably again
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Instead of holding it for the duration of an entire station schedule run,
which can block out competing tasks for a significant amount of time,
only hold it for scheduling one batch of packets for one station.
Improves responsiveness under load
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

Similar to commit '0e40dbd5 ("mt7601u: process URBs in status EPROTO
properly")', do no schedule rx_worker for urb marked with status set
-EPROTO
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>