Commit Graph
21 Commits
Author SHA1 Message Date
Felix Fietkau 33f29d2345 wifi: mt76: relicense to BSD-3-Clause-Clear
MediaTek has asked to switch from the ISC license to BSD-3-Clause-Clear,
in order to improve clarity and the legal integrity of the code.

The BSD-3-Clause license includes the "no endorsement" clause, which is
important for protecting the reputation of the original authors and
contributors by preventing unauthorized use of their names for endorsement
purposes.

This clause is absent in the BSD-2-Clause license, which is more permissive
but lacks this specific protection.

This change also cleans up the license of some Kconfig/Makefile files,
which were accidentally marked as GPL.

The GPL 2.0 remains in use on mt76x0, as well as two source files in mt7615
for which the license situation still needs to be clarified.

Signed-off-by: Felix Fietkau <[email protected]>
2025-10-13 11:11:19 +02:00
Ming Yen HsiehandFelix Fietkau 5776b32929 wifi: mt76: mt7925: refine the txpower initialization flow
Refactor the initialization and reset flow for tx power setting to
eliminate redundant configurations

Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-09 15:11:50 +02:00
Ming Yen HsiehandFelix Fietkau 719cda7c9f wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_tx_check_aggr()
Move the NULL check for 'sta' before dereferencing it to prevent a
possible crash.

Fixes: 44eb173bdd4f ("wifi: mt76: mt7925: add link handling in mt7925_txwi_free")
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-09 07:19:41 +02:00
Ming Yen HsiehandFelix Fietkau d48b221e39 wifi: mt76: mt7925: prevent NULL vif dereference in mt7925_mac_write_txwi
Check for a NULL `vif` before accessing `ieee80211_vif_is_mld(vif)` to
avoid a potential kernel panic in scenarios where `vif` might not be
initialized.

Fixes: ebb1406813c6 ("wifi: mt76: mt7925: add link handling to txwi")
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-09 07:19:41 +02:00
Ming Yen HsiehandFelix Fietkau 3ed2c4030d wifi: mt76: mt7925u: use connac3 tx aggr check in tx complete
MT7925 is a connac3 device; using the connac2 helper mis-parses
TXWI and breaks AMPDU/BA accounting. Use the connac3-specific
helper mt7925_tx_check_aggr() instead,

Cc: [email protected]
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Reported-by: Nick Morrow <[email protected]>
Tested-by: Nick Morrow <[email protected]>
Tested-on: Netgear A9000 USB WiFi adapter
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-08-27 11:12:50 +02:00
Felix Fietkau 243e572d89 wifi: mt76: add a wrapper for wcid access with validation
Several places use rcu_dereference to get a wcid entry without validating
if the index exceeds the array boundary. Fix this by using a helper function,
which handles validation.

Signed-off-by: Felix Fietkau <[email protected]>
2025-07-04 20:46:06 +02:00
Quan ZhouandFelix Fietkau e86e97e453 wifi: mt76: mt7925e: fix too long of wifi resume time
The mt7925e takes a long time to resume in platform resume
scenarios. This is due to the mt7925 reconfiguring the tx
power for each wifi channel during resume. By streamlining
the process and removing redundant power configurations,
the resume time for the mt7925 can be shortened.

Signed-off-by: Quan Zhou <[email protected]>
Link: https://patch.msgid.link/f075d43d87a5eefa5869baf755e9986edf735860.1735910836.git.quan.zhou@mediatek.com
Signed-off-by: Felix Fietkau <[email protected]>
2025-01-13 11:16:33 +01:00
Ming Yen HsiehandFelix Fietkau 72b4688b39 wifi: mt76: mt7925: Fix incorrect WCID assignment for MLO
For MLO, each link must have a corresponding WCID.

Fixes: 86c051f2c418 ("wifi: mt76: mt7925: enabling MLO when the firmware supports it")
Signed-off-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-12-30 19:43:32 +01:00
Sean WangandFelix Fietkau 7f65b1b28b wifi: mt76: connac: Extend mt76_connac_mcu_uni_add_dev for MLO
This commit extends the `mt76_connac_mcu_uni_add_dev` function to include
support for Multi-Link Operation (MLO). Additionally, backward
compatibility for MT7921 is preserved, enabling seamless integration with
existing setups.

Fixes: 86c051f2c418 ("wifi: mt76: mt7925: enabling MLO when the firmware supports it")
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-12-30 19:41:28 +01:00
Felix Fietkau 1884f568ba wifi: mt76: do not add wcid entries to sta poll list during MCU reset
Fixes linked list management issues during restart, where sta entries
can be recreated and reinitialized while still in the poll list, triggering
kernel warnings.

Signed-off-by: Felix Fietkau <[email protected]>
2024-12-30 18:40:23 +01:00
Felix Fietkau 8cd0263f92 wifi: mt76: rename struct mt76_vif to mt76_vif_link
Preparation to use it for private bss link data instead of the full vif
on MLO capable devices.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Peter ChiuandFelix Fietkau 4e8167b941 wifi: mt76: connac: fix checksum offload fields of connac3 RXD
Fix incorrect RXD offset and bitfield related to RX checksum offload.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Fixes: 4e9011fcdfc4 ("wifi: mt76: connac: move connac3 definitions in mt76_connac3_mac.h")
Co-developed-by: Shayne Chen <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
Signed-off-by: Peter Chiu <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-08-21 17:16:19 +02:00
Sean WangandFelix Fietkau 18471bb0d6 wifi: mt76: mt7925: add link handling in mt7925_vif_connect_iter
add link handling in mt7925_vif_connect_iter

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Co-developed-by: Deren Wu <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/c8d66043a4d31801249d53dd23f695c28a97a933.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-16 14:30:13 +02:00
Sean WangandFelix Fietkau 18ee40e548 wifi: mt76: mt7925: add link handling in mt7925_txwi_free
add link handling in mt7925_txwi_free.

MT7996 should have the similar the logic, we try to copy from there to
ensure consistency between both.

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Co-developed-by: Deren Wu <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/f8084e19d388c6b0807618ac6d1bb8ac633dc8cd.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-16 14:30:12 +02:00
Sean WangandFelix Fietkau 9505783485 wifi: mt76: mt7925: add link handling to txwi
add link handling to mt792x_tx and writing txwi.

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Co-developed-by: Deren Wu <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/c0a7c0b33ea2640bcb4f13a5f79a8976b73fa8f2.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-16 14:25:36 +02:00
Deren WuandFelix Fietkau a72414b092 wifi: mt76: mt7925: extend mt7925_mcu_set_tx with for per-link BSS
Extend mt7925_mcu_set_tx with per-link BSS configuration.

The patch we created is a prerequisite to enable the MLO function in the
driver. It is purely a refactoring patch so the functionality should
remain unchanged.

Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-13 15:39:30 +02:00
Sean WangandFelix Fietkau f6979f7bac wifi: mt76: mt792x: extend mt76_connac_mcu_uni_add_dev for per-link BSS
Extend mt76_connac_mcu_uni_add_dev with per-link BSS configuration.

The patch we created is a prerequisite to enable the MLO function in the
driver. It is purely a refactoring patch so the functionality should
remain unchanged.

We also extend link_idx field in mt76_connac_bss_basic_tlv for the firmware
to able to identify the link index in the MLO mode that is not harmful
for the current non-MLO mode.

Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-13 15:39:30 +02:00
Deren WuandFelix Fietkau eb278f9863 wifi: mt76: mt792x: add struct mt792x_link_sta
We are introducing a new structure, mt792x_link_sta, to manage per-link
configurations in preparation for future station (STA) support of
Multi-Link Operation (MLO).

This patch only includes structural changes and does not involve any
logic changes.

We have moved relevant parameters, such as the wcid from the mt76_wcid
structure, from the mt7921x_sta structure to the mt792x_link_sta structure.

For current drivers that do not support MLO, there is only one link STA,
and link information is accessed via the deflink member.

However, we have not yet created the per-link BSS configuration indexed
by link ID for Multi-Link Device (MLD) support in mt7921x_sta.
This step needs to be completed before adding MLD support for STA mode.

Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-13 15:39:30 +02:00
Deren WuandFelix Fietkau 1d6e4f7de8 wifi: mt76: mt7925: add EHT radiotap support in monitor mode
Add IEEE80211_RADIOTAP_EHT and IEEE80211_RADIOTAP_EHT_USIG radiotap
to fill in EHT information, such as MCS, NSS, GI and bandwidth.

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2024-04-19 13:25:55 +02:00
Lorenzo BianconiandFelix Fietkau 77cc145962 wifi: mt76: mt792x: move mt7921_skb_add_usb_sdio_hdr in mt792x module
Since mt7921_skb_add_usb_sdio_hdr is shared between mt7925 and mt7921
drivers, move it in mt792x module.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2023-09-30 20:17:46 +02:00
Deren WuandFelix Fietkau 2afc7285f7 wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips
Add mt7925, a new mac80211 driver for the MediaTek Wi-Fi 7 (802.11be) device
Filogic 360, which can support Station, AP, P2P, and monitor modes.
Filogic 360 supports max 4096-QAM/160MHz radio operation at 6 GHz, 5 GHz,
or 2.4 GHz with 2x2 antennas. This chip supports PCIe and USB bus type.

mt7925 supports Wi-Fi 6E and EHT rate with single link only at this moment,
whereas Wi-Fi 7 and its specific features are working in progress. They will be
introduced in further patches.

The driver is build tested by Intel's kernel test robot with both GCC and Clang
with several architecture. Sparse reports no warnings.

There are multiple authors, they are listed in alphabetical order below.

Co-developed-by: Hao Zhang <[email protected]>
Signed-off-by: Hao Zhang <[email protected]>
Co-developed-by: Leon Yen <[email protected]>
Signed-off-by: Leon Yen <[email protected]>
Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Co-developed-by: Mingyen Hsieh <[email protected]>
Signed-off-by: Mingyen Hsieh <[email protected]>
Co-developed-by: Nelson Yu <[email protected]>
Signed-off-by: Nelson Yu <[email protected]>
Co-developed-by: Quan Zhou <[email protected]>
Signed-off-by: Quan Zhou <[email protected]>
Co-developed-by: Rong Yan <[email protected]>
Signed-off-by: Rong Yan <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2023-09-18 12:42:45 +02:00