Commit Graph

37436 Commits

Author SHA1 Message Date
Deren Wu
29e247ece5 wifi: mt76: mt7921e: fix random fw download fail
In case of PCIe interoperability problem shows up, the firmware
payload may be corrupted in download stage. Turn off L0s to keep
fw download process accurately.

[ 1093.528363] mt7921e 0000:3b:00.0: Message 00000007 (seq 7) timeout
[ 1093.528414] mt7921e 0000:3b:00.0: Failed to start patch
[ 1096.600156] mt7921e 0000:3b:00.0: Message 00000010 (seq 8) timeout
[ 1096.600207] mt7921e 0000:3b:00.0: Failed to release patch semaphore
[ 1097.699031] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1098.758427] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1099.834408] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1100.915264] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1101.990625] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1103.077587] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1104.173258] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1105.248466] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1106.336969] mt7921e 0000:3b:00.0: Timeout for driver own
[ 1106.397542] mt7921e 0000:3b:00.0: hardware init failed

Cc: stable@vger.kernel.org
Fixes: bf3747ae2e ("mt76: mt7921: enable aspm by default")
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:39 +02:00
Ming Yen Hsieh
23bdc5d8ca wifi: mt76: mt7921: introduce Country Location Control support
Country Location Control (CLC) is an additional control for country rules
in firmware. We introduce this new feature to make sure mt7921 series
working properly in all region.

The addtional policies would be put into firmware based on differnt
regions. mt76 driver should be in charge of submitting per region policy.

Reviewed-by: Sean Wang <sean.wang@mediatek.com>
Tested-by: YN Chen <YN.Chen@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:39 +02:00
Deren Wu
b5a62d612b wifi: mt76: mt7921e: fix rmmod crash in driver reload test
In insmod/rmmod stress test, the following crash dump shows up immediately.
The problem is caused by missing mt76_dev in mt7921_pci_remove(). We
should make sure the drvdata is ready before probe() finished.

[168.862789] ==================================================================
[168.862797] BUG: KASAN: user-memory-access in try_to_grab_pending+0x59/0x480
[168.862805] Write of size 8 at addr 0000000000006df0 by task rmmod/5361
[168.862812] CPU: 7 PID: 5361 Comm: rmmod Tainted: G           OE     5.19.0-rc6 #1
[168.862816] Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, 05/04/2020
[168.862820] Call Trace:
[168.862822]  <TASK>
[168.862825]  dump_stack_lvl+0x49/0x63
[168.862832]  print_report.cold+0x493/0x6b7
[168.862845]  kasan_report+0xa7/0x120
[168.862857]  kasan_check_range+0x163/0x200
[168.862861]  __kasan_check_write+0x14/0x20
[168.862866]  try_to_grab_pending+0x59/0x480
[168.862870]  __cancel_work_timer+0xbb/0x340
[168.862898]  cancel_work_sync+0x10/0x20
[168.862902]  mt7921_pci_remove+0x61/0x1c0 [mt7921e]
[168.862909]  pci_device_remove+0xa3/0x1d0
[168.862914]  device_remove+0xc4/0x170
[168.862920]  device_release_driver_internal+0x163/0x300
[168.862925]  driver_detach+0xc7/0x1a0
[168.862930]  bus_remove_driver+0xeb/0x2d0
[168.862935]  driver_unregister+0x71/0xb0
[168.862939]  pci_unregister_driver+0x30/0x230
[168.862944]  mt7921_pci_driver_exit+0x10/0x1b [mt7921e]
[168.862949]  __x64_sys_delete_module+0x2f9/0x4b0
[168.862968]  do_syscall_64+0x38/0x90
[168.862973]  entry_SYSCALL_64_after_hwframe+0x63/0xcd

Test steps:
1. insmode
2. do not ifup
3. rmmod quickly (within 1 second)

Fixes: 1c71e03afe ("mt76: mt7921: move mt7921_init_hw in a dedicated work")
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:39 +02:00
Sean Wang
1bf66dc310 wifi: mt76: mt7921: reset msta->airtime_ac while clearing up hw value
We should reset mstat->airtime_ac along with clear up the entries in the
hardware WLAN table for the Rx and Rx accumulative airtime. Otherwsie, the
value msta->airtime_ac - [tx, rx]_last may be a negative and that is not
the actual airtime the device took in the last run.

Reported-by: YN Chen <YN.Chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:39 +02:00
Howard Hsu
d2b5bb6dfa wifi: mt76: mt7915: do not check state before configuring implicit beamform
Do not need to check running state before configuring implicit Tx
beamform. It is okay to configure implicit Tx beamform in run time.
Noted that the existing connected stations will be applied for new
configuration only if they reconnected to the interface.

Fixes: 6d6dc980e0 ("mt76: mt7915: add implicit Tx beamforming support")
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:39 +02:00
Lorenzo Bianconi
9be57ad739 wifi: mt76: fix uninitialized pointer in mt7921_mac_fill_rx
Initialize msta pointer to NULL in mt7921_mac_fill_rx() in order to not
dereference a uninitialized pointer.

Fixes: 0880d40871 ("mt76: connac: move mt76_connac2_reverse_frag0_hdr_trans in mt76-connac module")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:39 +02:00
Howard Hsu
c6d3e16ad4 wifi: mt76: mt7915: fix mcs value in ht mode
Fix the error that mcs will be reduced to a range of 0 to 7 in ht mode.

Fixes: 70fd1333cd ("mt76: mt7915: rework .set_bitrate_mask() to support more options")
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 13:21:14 +02:00
Sean Wang
b78f67bf59 wifi: mt76: mt7921: get rid of the false positive reset
False positive reset would be possibly triggered by those commands we
applied in suspend with HZ MCU timeout, especially it happened when we
enabled kernel log in pm core to diagnose how much time we spend in each
driver during suspend procedure. So we enlarge the value and align the MCU
timeout as other commands we did to reduce the false positive reset.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:02 +02:00
Ruffalo Lavoisier
5473bdb40c wifi: mt76: connac: fix in comment
Correct spelling on 'transmitted' in comment

Signed-off-by: Ruffalo Lavoisier <RuffaloLavoisier@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:02 +02:00
Ryder Lee
43eaa36895 wifi: mt76: add PPDU based TxS support for WED device
Given that there's no data coming from network stack for binding flows,
hence driver counts and reports station's statistics directly through
NL80211_STA_INFO_* based on active PPDU based TxS for offloading data.

Apart from that, WA firmware and its offloading engine (SDO) have hardcoded
"2" as PID, so we introduce MT_PACKET_ID_WED to differentiate WED reporting.

Note that PPDU format TxS is mutually exclusive with MT_TXD5_TX_STATUS_HOST.

Co-developed-by: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com>
Signed-off-by: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:01 +02:00
Ryder Lee
dc877523e6 wifi: mt76: move move mt76_sta_stats to mt76_wcid
This is a preliminary patch for WED's TxS support.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:01 +02:00
Sean Wang
00be84d6df wifi: mt76: mt7921: fix the firmware version report
Fix the regression of the firmware version report since
'b9ec27102ac0 ('mt76: connac: move mt76_connac2_load_ram in connac
module')'.

Fixes: b9ec27102a ("mt76: connac: move mt76_connac2_load_ram in connac module")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:01 +02:00
Sean Wang
59c20b9178 wifi: mt76: mt7921: add mt7921_mutex_acquire at mt7921_sta_set_decap_offload
Add mt7921_mutex_acquire at mt7921_[start, stop]_ap to fix the race
with the context holding dev->muxtex and the driver might access the
device in low power state.

Fixes: 24299fc869 ("mt76: mt7921: enable rx header traslation offload")
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:01 +02:00
Sean Wang
52b44015f0 wifi: mt76: mt7921: add mt7921_mutex_acquire at mt7921_[start, stop]_ap
Add mt7921_mutex_acquire at mt7921_[start, stop]_ap to fix the race
with the context holding dev->muxtex and the driver might access the
device in low power state.

Fixes: 9d958b60eb ("mt76: mt7921: fix command timeout in AP stop period")
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:01 +02:00
Gergo Koteles
028a47cf60 wifi: mt76: mt76_usb.mt76u_mcu.burst is always false remove related code
Simplify mt76x02u_multiple_mcu_reads routine since burst is always
false.

Signed-off-by: Gergo Koteles <soyer@irl.hu>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:00 +02:00
Lorenzo Bianconi
deb0f90d9d wifi: mt76: mt7663s: add rx_check callback
Introduce rx_check callback support for mt7663s driver.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:00 +02:00
Lorenzo Bianconi
0a4860f627 wifi: mt76: connac: fix possible unaligned access in mt76_connac_mcu_add_nested_tlv
Fix possible unaligned pointer in mt76_connac_mcu_add_nested_tlv
routine.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 25702d9c55 ("mt76: connac: rely on le16_add_cpu in mt76_connac_mcu_add_nested_tlv")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:00 +02:00
Lorenzo Bianconi
3d9aa54355 wifi: mt76: mt7915: fix possible unaligned access in mt7915_mac_add_twt_setup
Fix possible unaligned pointer in mt7915_mac_add_twt_setup routine.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 3782b69d03 ("mt76: mt7915: introduce mt7915_mac_add_twt_setup routine")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:54:00 +02:00
Lorenzo Bianconi
765c69d477 wifi: mt76: mt7615: add mt7615_mutex_acquire/release in mt7615_sta_set_decap_offload
Similar to mt7921 driver, introduce mt7615_mutex_acquire/release in
mt7615_sta_set_decap_offload in order to avoid sending mcu commands
while the device is in low-power state.

Fixes: d4b98c63d7 ("mt76: mt7615: add support for rx decapsulation offload")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:59 +02:00
YN Chen
250b182720 wifi: mt76: sdio: fix transmitting packet hangs
Fix transmitting packets hangs with continuing to pull the pending packet
from mac80211 queues when receiving Tx status notification from the device.

Fixes: aac5104bf6 ("mt76: sdio: do not run mt76_txq_schedule directly")
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: YN Chen <yn.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:59 +02:00
Lorenzo Bianconi
35e37a2b5b wifi: mt76: sdio: add rx_check callback for sdio devices
Introduce rx_check callback support for mt7921s driver.

Tested-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
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>
2022-09-15 12:53:59 +02:00
Dan Carpenter
dc218cd6e9 wifi: mt76: mt7921: delete stray if statement
This if statement is never true.  It was supposed to have been deleted
as part of commit 454b768f9b ("mt76: mt7921: Let PCI core handle
power state and use pm_sleep_ptr()") but was missed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:59 +02:00
Dan Carpenter
e7de4b4979 wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()
Don't dereference "sar_root" after it has been freed.

Fixes: f965333e49 ("mt76: mt7921: introduce ACPI SAR support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:59 +02:00
Dan Carpenter
b5ee771c84 wifi: mt76: mt7915: fix an uninitialized variable bug
Smatch complains that:

    drivers/net/wireless/mediatek/mt76/mt7915/mac.c:428 mt7915_mac_fill_rx()
    error: uninitialized symbol 'msta'.

It looks like this was supposed to be initialized to NULL.

Fixes: 0880d40871 ("mt76: connac: move mt76_connac2_reverse_frag0_hdr_trans in mt76-connac module")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:58 +02:00
Sean Wang
a323e5f041 wifi: mt76: sdio: poll sta stat when device transmits data
It is not meaningful to poll sta stat when there is no data traffic.
So polling sta stat when the device has transmitted data instead to save
CPU power.

That implies that it is unallowed the stat_work to work while MCU is being
initialized in the really early stage to fix the possible time to time MCU
initialization failure.

Fixes: d39b52e31a ("mt76: introduce mt76_sdio module")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:58 +02:00
Sean Wang
e5d78fd998 wifi: mt76: sdio: fix the deadlock caused by sdio->stat_work
Because wake_work and sdio->stat_work share the same workqueue mt76->wq,
if sdio->stat_work cannot acquire the mutex lock such as that was possibly
held up by [mt7615, mt7921]_mutex_acquire. Additionally, if
[mt7615, mt7921]_mutex_acquire was called by sdio->stat_work self, the wake
would be blocked by itself. Thus, we move the stat_work into
ieee80211_workqueue instead to break the deadlock.

Fixes: d39b52e31a ("mt76: introduce mt76_sdio module")
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>
2022-09-15 12:53:58 +02:00
Lorenzo Bianconi
0af1ad9559 wifi: mt76: mt7921: move mt7921_rx_check and mt7921_queue_rx_skb in mac.c
Since both mt7921_rx_check and mt7921_queue_rx_skb routines are used by
all chipsets (mmio, usb and sdio), move them in mac.c and remove
duplicated code.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:58 +02:00
Sean Wang
51fd13b78e wifi: mt76: mt7921u: remove unnecessary MT76_STATE_SUSPEND
remove unnecessary MT76_STATE_SUSPEND manipulation to be consistent
with the mt7921[e, s] driver.

Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:58 +02:00
Sean Wang
86f15d043b wifi: mt76: mt7921u: fix race issue between reset and suspend/resume
It is unexpected that the reset work is running simultaneously with
the suspend or resume context and it is possible that reset work is still
running even after mt7921 is suspended if we don't fix the race issue.

Thus, the suspend procedure should be waiting until the reset is completed
at the beginning and ignore the subsequent the reset requests.

In case there is an error that happens during either suspend or resume
handler, we will schedule a reset task to recover the error before
returning the error code to ensure we can immediately fix the error there.

Fixes: df3e4143ba ("mt76: mt7921u: add suspend/resume support")
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>
2022-09-15 12:53:57 +02:00
Sean Wang
e86f10e680 wifi: mt76: mt7921s: fix race issue between reset and suspend/resume
It is unexpected that the reset work is running simultaneously with
the suspend or resume context and it is possible that reset work is still
running even after mt7921 is suspended if we don't fix the race issue.

Thus, the suspend procedure should be waiting until the reset is completed
at the beginning and ignore the subsequent the reset requests.

In case there is an error that happens during either suspend or resume
handler, we will schedule a reset task to recover the error before
returning the error code to ensure we can immediately fix the error there.

Fixes: ca74b9b907 ("mt76: mt7921s: add reset support")
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>
2022-09-15 12:53:57 +02:00
Sean Wang
ff6c4a6449 wifi: mt76: mt7921e: fix race issue between reset and suspend/resume
It is unexpected that the reset work is running simultaneously with
the suspend or resume context and it is possible that reset work is still
running even after mt7921 is suspended if we don't fix the race issue.

Thus, the suspend procedure should be waiting until the reset is completed
at the beginning and ignore the subsequent the reset requests.

In case there is an error that happens during either suspend or resume
handler, we will schedule a reset task to recover the error before
returning the error code to ensure we can immediately fix the error there.

Fixes: 0c1ce98846 ("mt76: mt7921: add wifi reset support")
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>
2022-09-15 12:53:57 +02:00
Lorenzo Bianconi
12d7440e3b wifi: mt76: add rx_check callback for usb devices
Introduce rx_check callback support for mt7663u and mt7921u drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:57 +02:00
Shayne Chen
60c45a78c3 wifi: mt76: testmode: use random payload for tx packets
Compared to fixed payload packets, random payload packets have better
measured EVM under the same txpower. Our tests show EVM becomes at least
2-3 dB better in test cases with high rate and long tx length, which also
aligns the testing results to proprietary driver.

Suggested-by: Jm Chen <jm.chen@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:56 +02:00
Lorenzo Bianconi
e351f4f046 wifi: mt76: connac: introduce mt76_connac_reg_map structure
Introduce mt76_connac_reg_map structure in mt76-connac module since it
is used by all connac2 chipset. Align structure definitions.
This is a preliminary patch to add mt7990 chipset support.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-15 12:53:56 +02:00
Bitterblue Smith
d5350756c0 wifi: rtl8xxxu: Remove copy-paste leftover in gen2_update_rate_mask
It looks like a leftover from copying rtl8xxxu_update_rate_mask,
which is used with the gen1 chips.

It wasn't causing any problems for my RTL8188FU test device, but it's
clearly a mistake, so remove it.

Fixes: f653e69009 ("rtl8xxxu: Implement basic 8723b specific update_rate_mask() function")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/d5544fe8-9798-28f1-54bd-6839a1974b10@gmail.com
2022-09-12 14:57:54 +03:00
Bitterblue Smith
e963a19c64 wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration
Found by comparing with the vendor driver. Currently this affects
only the RTL8192EU, which is the only gen2 chip with 2 TX paths
supported by this driver. It's unclear what kind of effect the
mistake had in practice, since I don't have any RTL8192EU devices
to test it.

Fixes: e1547c535e ("rtl8xxxu: First stab at adding IQK calibration for 8723bu parts")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/30a59f3a-cfa9-8379-7af0-78a8f4c77cfd@gmail.com
2022-09-12 14:57:28 +03:00
Po-Hao Huang
bd1056d48a wifi: rtw89: split scan including lots of channels
The size limit of H2C commands is 2048. With regulatory that enables
U-NII-6 ~ UNII-8 channels, channel list length combining with channel info
length will exceed that. Split the channel list to parts and do scan
multiple times to workaround that.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-10-pkshih@realtek.com
2022-09-12 14:52:33 +03:00
Po-Hao Huang
3a1e7cb16d wifi: rtw89: 8852c: support hw_scan
This enables hw_scan function for 52c. The mechanism is similar to 52a
except that it adds modifications required for 6G channels and extends the
command length to make driver compatible to both newer and existing
firmware.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-9-pkshih@realtek.com
2022-09-12 14:52:33 +03:00
Chin-Yen Lee
5abbb68aca wifi: rtw89: call tx_wake notify for 8852c in deep ps mode
8852c transmits packets with slow response in deep ps mode,
and lead to low throughput. We need to call tx_wake for
each pakcet to trigger firmware wake earlier to avoid it.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-8-pkshih@realtek.com
2022-09-12 14:52:33 +03:00
Chin-Yen Lee
183c8eff5a wifi: rtw89: support deep ps mode for rtw8852c
rtw8852c could support deep ps mode if the firmware version
is greater than 0.17.34.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-7-pkshih@realtek.com
2022-09-12 14:52:33 +03:00
Chia-Yuan Li
9ef9edb9e8 wifi: rtw89: set response rate selection
With suitable response rate, it can acknowledge peer packets are received.
Otherwise, peer could re-transmit again due to missing of ACK frames.
To achieve this, refer to RX rate and CMAC table to choose the smaller
as initial response rate.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-6-pkshih@realtek.com
2022-09-12 14:52:33 +03:00
Yi-Tang Chiu
755fda37b9 wifi: rtw89: 8852c: set TX to single path TX on path B in 6GHz band
With one path TX for 1SS rate, it can transmit higher power in 6GHz band
to yield better performance in high attenuation circumstance.

Signed-off-by: Yi-Tang Chiu <chiuyitang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-5-pkshih@realtek.com
2022-09-12 14:52:32 +03:00
Ping-Ke Shih
2449ca713e wifi: rtw89: 8852c: enlarge polling timeout of RX DCK
The range of calibration time of RX DCK is quite wide from ~40us to
~1300us by experiments, and probability is about 0.1% for the cases larger
than 1000us. Though it can retry calibration and get positive result, it
will spend more time. Therefore, enlarge it to avoid warning and duplicate
calibration.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-4-pkshih@realtek.com
2022-09-12 14:52:32 +03:00
Ping-Ke Shih
ef16380b69 wifi: rtw89: 8852c: enable the interference cancellation of MU-MIMO on 6GHz
Enable MU-MIMO interference cancellation (MUIC) to yield expected
performance of receiving MU-MIMO packets on 6GHz.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-3-pkshih@realtek.com
2022-09-12 14:52:32 +03:00
Eric Huang
87deaad9c9 wifi: rtw89: add DIG register struct to share common algorithm
Since control register address for DIG are different per IC, add a new
struct rtw89_dig_regs in chip info for each IC to define their own address.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908051257.25353-2-pkshih@realtek.com
2022-09-12 14:52:32 +03:00
Ping-Ke Shih
7dbdf65525 wifi: rtw89: support TX diversity for 1T2R chipset
Check RSSI strength to decide which path is better, and then set TX path
accordingly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908074140.39776-6-pkshih@realtek.com
2022-09-12 14:51:44 +03:00
Ping-Ke Shih
6ce472d651 wifi: rtw89: record signal strength per RF path
Originally, we show average signal strength. To support TX diversity, this
patch prepares strength per path, then we can decide TX path.

  RSSI: -54 dBm (raw=112, prev=110) [-57, -52]

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908074140.39776-5-pkshih@realtek.com
2022-09-12 14:51:44 +03:00
Ping-Ke Shih
5a8e06e49a wifi: rtw89: configure TX path via H2C command
In order to support TX diversity, add a function to control TX path.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908074140.39776-4-pkshih@realtek.com
2022-09-12 14:51:44 +03:00
Ping-Ke Shih
dc229d944e wifi: rtw89: parse phycap of TX/RX antenna number
Two fields, TX/RX ANT NUM, are introduced to address variant TX/RX antenna
number of hardware. For example, a 1x1 chip with TX diversity, TX NSS = 1
and TX/RX ANT NUM = 2.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908074140.39776-3-pkshih@realtek.com
2022-09-12 14:51:44 +03:00
Ping-Ke Shih
c7ad08c601 wifi: rtw89: use u32_get_bits to access C2H content of PHY capability
The definitions of bit fields in structure will be wrong in big-endian
platform, so use u32_get_bits() to access them.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220908074140.39776-2-pkshih@realtek.com
2022-09-12 14:51:43 +03:00