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path: root/drivers/net/wireless/mediatek/mt76/mt7921
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8 dayswifi: mt76: add a wrapper for wcid access with validationFelix Fietkau
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. Link: https://patch.msgid.link/20250707154702.1726-1-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 dayswifi: mt76: mt7921: prevent decap offload config before STA initializationDeren Wu
The decap offload configuration should only be applied after the STA has been successfully initialized. Attempting to configure it earlier can lead to corruption of the MAC configuration in the chip's hardware state. Add an early check for `msta->deflink.wcid.sta` to ensure the station peer is properly initialized before proceeding with decapsulation offload configuration. Cc: stable@vger.kernel.org Fixes: 24299fc869f7 ("mt76: mt7921: enable rx header traslation offload") Signed-off-by: Deren Wu <deren.wu@mediatek.com> Link: https://patch.msgid.link/f23a72ba7a3c1ad38ba9e13bb54ef21d6ef44ffb.1748149855.git.deren.wu@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7921: add 160 MHz AP for mt7922 deviceSamuel Williams
This allows mt7922 in hostapd mode to transmit up to 1.4 Gbps. Signed-off-by: Samuel Williams <sam8641@gmail.com> Link: https://patch.msgid.link/20250511005316.1118961-1-sam8641@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-04-05treewide: Switch/rename to timer_delete[_sync]()Thomas Gleixner
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-03-19wifi: mt76: mt7921: fix kernel panic due to null pointer dereferenceMing Yen Hsieh
Address a kernel panic caused by a null pointer dereference in the `mt792x_rx_get_wcid` function. The issue arises because the `deflink` structure is not properly initialized with the `sta` context. This patch ensures that the `deflink` structure is correctly linked to the `sta` context, preventing the null pointer dereference. BUG: kernel NULL pointer dereference, address: 0000000000000400 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 UID: 0 PID: 470 Comm: mt76-usb-rx phy Not tainted 6.12.13-gentoo-dist #1 Hardware name: /AMD HUDSON-M1, BIOS 4.6.4 11/15/2011 RIP: 0010:mt792x_rx_get_wcid+0x48/0x140 [mt792x_lib] RSP: 0018:ffffa147c055fd98 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff8e9ecb652000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8e9ecb652000 RBP: 0000000000000685 R08: ffff8e9ec6570000 R09: 0000000000000000 R10: ffff8e9ecd2ca000 R11: ffff8e9f22a217c0 R12: 0000000038010119 R13: 0000000080843801 R14: ffff8e9ec6570000 R15: ffff8e9ecb652000 FS: 0000000000000000(0000) GS:ffff8e9f22a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000400 CR3: 000000000d2ea000 CR4: 00000000000006f0 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? page_fault_oops+0x15a/0x2f0 ? search_module_extables+0x19/0x60 ? search_bpf_extables+0x5f/0x80 ? exc_page_fault+0x7e/0x180 ? asm_exc_page_fault+0x26/0x30 ? mt792x_rx_get_wcid+0x48/0x140 [mt792x_lib] mt7921_queue_rx_skb+0x1c6/0xaa0 [mt7921_common] mt76u_alloc_queues+0x784/0x810 [mt76_usb] ? __pfx___mt76_worker_fn+0x10/0x10 [mt76] __mt76_worker_fn+0x4f/0x80 [mt76] kthread+0xd2/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x34/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> ---[ end trace 0000000000000000 ]--- Reported-by: Nick Morrow <usbwifi2024@gmail.com> Closes: https://github.com/morrownr/USB-WiFi/issues/577 Cc: stable@vger.kernel.org Fixes: 90c10286b176 ("wifi: mt76: mt7925: Update mt792x_rx_get_wcid for per-link STA") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Tested-by: Salah Coronya <salah.coronya@gmail.com> Link: https://patch.msgid.link/20250218033343.1999648-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-27wifi: mt76: move napi_enable() from under BHJakub Kicinski
mt76 does a lot of: local_bh_disable(); napi_enable(...napi); napi_schedule(...napi); local_bh_enable(); local_bh_disable() is not a real lock, its most likely taken because napi_schedule() requires that we invoke softirqs at some point. napi_enable() needs to take a mutex, so move it from under the BH protection. Fixes: 413f0271f396 ("net: protect NAPI enablement with netdev_lock()") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/dcfd56bc-de32-4b11-9e19-d8bd1543745d@stanley.mountain Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250124031841.1179756-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-14wifi: mt76: connac: adjust phy capabilities based on band constraintsHoward Hsu
Adjust HE and EHT phy capabilities based on the band constraints. For 2g band, we shall not enable the capabilities above 40MHz. Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250114101026.3587702-5-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: mt7921: avoid undesired changes of the preset regulatory domainLeon Yen
Some countries have strict RF restrictions where changing the regulatory domain dynamically based on the connected AP is not acceptable. This patch disables Beacon country IE hinting when a valid country code is set from usersland (e.g., by system using iw or CRDA). Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Tested-by: David Ruth <druth@chromium.org> Link: https://patch.msgid.link/20240412085357.13756-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: mt7925: add handler to hif suspend/resume eventQuan Zhou
When the system suspend or resume, the WiFi driver sends an hif_ctrl command to the firmware and waits for an event. Due to changes in the event format reported by the chip, the current mt7925's driver does not account for these changes, resulting in command timeout. Add flow to handle hif_ctrl event to avoid command timeout. We also exented API mt76_connac_mcu_set_hif_suspend for connac3 this time. Signed-off-by: Quan Zhou <quan.zhou@mediatek.com> Link: https://patch.msgid.link/3a0844ff5162142c4a9f3cf7104f75076ddd3b87.1735910562.git.quan.zhou@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: initialize more wcid fields mt76_wcid_initFelix Fietkau
Reduces code duplication and ensures that the phy index is always set. Link: https://patch.msgid.link/20250102163508.52945-6-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: rename struct mt76_vif to mt76_vif_linkFelix Fietkau
Preparation to use it for private bss link data instead of the full vif on MLO capable devices. Link: https://patch.msgid.link/20250102163508.52945-3-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: do not add wcid entries to sta poll list during MCU resetFelix Fietkau
Fixes linked list management issues during restart, where sta entries can be recreated and reinitialized while still in the poll list, triggering kernel warnings. Link: https://patch.msgid.link/20241230194202.95065-14-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: mt7921u: Add VID/PID for TP-Link TXE50UHNick Morrow
Add VID/PID 35bc/0107 for recently released TP-Link TXE50UH USB WiFi adapter. Tested-by: Shang Chieh Tseng <shangchieh.tseng@tsengsy.com> Signed-off-by: Nick Morrow <usbwifi2024@gmail.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/e797f105-9ca8-41e9-96de-7d25dec09943@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: mt7921: add rfkill_poll for hardware rfkillAllan Wang
Add mac80211 rfkill_poll ops to monitor hardware rfkill state and state change will be updated. Signed-off-by: Allan Wang <allan.wang@mediatek.com> Link: https://patch.msgid.link/20241209070922.28106-1-allan.wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: mt7921: introduce CSA supportLeon Yen
Add CSA (Channel Switch Announcement) related implementation in collaboration with mac80211 to deal with dynamic channel switching. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20241107061440.6545-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: connac: Extend mt76_connac_mcu_uni_add_dev for MLOSean Wang
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 <sean.wang@mediatek.com> Link: https://patch.msgid.link/20241211011926.5002-1-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: introduce mt792x_config_mac_addr_list routineAllan Wang
Add mt792x_config_mac_addr_list routine in order to set the mac address list supported by the driver. Initialize wiphy->addresses/n_addresses for mt792x driver Signed-off-by: Hao Zhang <hao.zhang@mediatek.com> Signed-off-by: Leon Yen <Leon.Yen@mediatek.com> Signed-off-by: Allan Wang <allan.wang@mediatek.com> Link: https://patch.msgid.link/20241016101017.19598-1-allan.wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-14wifi: mt76: mt7921: fix using incorrect group cipher after disconnection.Michael Lo
To avoid incorrect cipher after disconnection, we should do the key deletion process in this case. Fixes: e6db67fa871d ("wifi: mt76: ignore key disable commands") Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Tested-by: David Ruth <druth@chromium.org> Reviewed-by: David Ruth <druth@chromium.org> Link: https://patch.msgid.link/20240801024335.12981-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-13wifi: mt76: mt7921: fix a potential scan no APsQuan Zhou
In multi-channel scenarios, the granted channel must be aborted before station remove. Otherwise, the firmware will be put into a wrong state, resulting in have chance to make subsequence scan no APs. With this patch, the granted channel will be always aborted before station remove. Signed-off-by: Quan Zhou <quan.zhou@mediatek.com> Reviewed-by: Sean Wang <sean.wang@mediatek.com> Tested-by: David Ruth <druth@chromium.org> Reviewed-by: David Ruth <druth@chromium.org> Link: https://patch.msgid.link/1ac1ae779db86d4012199a24ea2ca74050ed4af6.1721300411.git.quan.zhou@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-01-13wifi: mt76: mt7921s: fix a potential firmware freeze during startupLeon Yen
The maximum command quota of the firmware may be exceeded because the command to retrieve the quota setting has not been taken into account. This patch considers not only the quota usage of the command retrieving quota settings but also limits the total quota usage. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20240916060157.10157-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-09-06wifi: mt76: mt7921: Check devm_kasprintf() returned valueMa Ke
devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fix this lack and check the returned value. Found by code review. Cc: stable@vger.kernel.org Fixes: 6ae39b7c7ed4 ("wifi: mt76: mt7921: Support temp sensor") Signed-off-by: Ma Ke <make24@iscas.ac.cn> Reviwed-by: Matthias Brugger <matthias.bgg@gmail.com> Link: https://patch.msgid.link/20240903014455.4144536-1-make24@iscas.ac.cn Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-09-06wifi: mt76: change .sta_assoc callback to .sta_eventFelix Fietkau
Also report auth/disassoc events, in order to give the driver more control over handling the station state. Link: https://patch.msgid.link/20240827093011.18621-11-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-09-06wifi: mt76: partially move channel change code to coreFelix Fietkau
This allows the core code to change the channel. Code deduplication and preparation for adding scanning code to the core. Link: https://patch.msgid.link/20240828063422.44813-1-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-09-05wifi: mt76: mt7921: fix wrong UNII-4 freq range check for the channel usageMing Yen Hsieh
The check should start from 5845 to 5925, which includes channels 169, 173, and 177. Fixes: 09382d8f8641 ("wifi: mt76: mt7921: update the channel usage when the regd domain changed") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20240806013408.17874-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-08-13wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_changeBert Karwatzki
When disabling wifi mt7921_ipv6_addr_change() is called as a notifier. At this point mvif->phy is already NULL so we cannot use it here. Signed-off-by: Bert Karwatzki <spasswolf@web.de> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://patch.msgid.link/20240812104542.80760-1-spasswolf@web.de
2024-07-26wifi: mt76: mt7921: fix null pointer access in mt792x_mac_link_bss_removeSean Wang
Fix null pointer access in mt792x_mac_link_bss_remove. To prevent null pointer access, we should assign the vif to bss_conf in mt7921_add_interface. This ensures that subsequent operations on the BSS can properly reference the correct vif. [ T843] Call Trace: [ T843] <TASK> [ T843] ? __die+0x1e/0x60 [ T843] ? page_fault_oops+0x157/0x450 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? search_bpf_extables+0x5a/0x80 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? exc_page_fault+0x2bb/0x670 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? lock_timer_base+0x71/0x90 [ T843] ? asm_exc_page_fault+0x26/0x30 [ T843] ? mt792x_mac_link_bss_remove+0x24/0x110 [mt792x_lib] [ T843] ? mt792x_remove_interface+0x6e/0x90 [mt792x_lib] [ T843] ? ieee80211_do_stop+0x507/0x7e0 [mac80211] [ T843] ? ieee80211_stop+0x53/0x190 [mac80211] [ T843] ? __dev_close_many+0xa5/0x120 [ T843] ? __dev_change_flags+0x18c/0x220 [ T843] ? dev_change_flags+0x21/0x60 [ T843] ? do_setlink+0xdf9/0x11d0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? security_sock_rcv_skb+0x33/0x50 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __nla_validate_parse+0x61/0xd10 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? genl_done+0x53/0x80 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? netlink_dump+0x357/0x410 [ T843] ? __rtnl_newlink+0x5d6/0x980 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? genl_family_rcv_msg_dumpit+0xdf/0xf0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __kmalloc_cache_noprof+0x44/0x210 [ T843] ? rtnl_newlink+0x42/0x60 [ T843] ? rtnetlink_rcv_msg+0x152/0x3f0 [ T843] ? mptcp_pm_nl_dump_addr+0x180/0x180 [ T843] ? rtnl_calcit.isra.0+0x130/0x130 [ T843] ? netlink_rcv_skb+0x56/0x100 [ T843] ? netlink_unicast+0x199/0x290 [ T843] ? netlink_sendmsg+0x21d/0x490 [ T843] ? __sock_sendmsg+0x78/0x80 [ T843] ? ____sys_sendmsg+0x23f/0x2e0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? copy_msghdr_from_user+0x68/0xa0 [ T843] ? ___sys_sendmsg+0x81/0xd0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? crng_fast_key_erasure+0xbc/0xf0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? get_random_bytes_user+0x126/0x140 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __fdget+0xb1/0xe0 [ T843] ? __sys_sendmsg+0x56/0xa0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? do_syscall_64+0x5f/0x170 [ T843] ? entry_SYSCALL_64_after_hwframe+0x55/0x5d [ T843] </TASK> Fixes: 1541d63c5fe2 ("wifi: mt76: mt7925: add mt7925_mac_link_bss_remove to remove per-link BSS") Reported-by: Bert Karwatzki <spasswolf@web.de> Closes: https://lore.kernel.org/linux-wireless/2fee61f8c903d02a900ca3188c3742c7effd102e.camel@web.de/#b Signed-off-by: Sean Wang <sean.wang@mediatek.com> Tested-by: Bert Karwatzki <spasswolf@web.de> Link: https://patch.msgid.link/20240718234633.12737-1-sean.wang@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-07-09wifi: mt76: mt792x: fix scheduler interference in drv own processMichael Lo
Add some time to wait for LP engine to complete its operation before polling pmctrl register. Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Tested-by: David Ruth <druth@chromium.org> Acked-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/20240523112131.31437-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-07-09wifi: mt76: mt792x: extend mt76_connac_mcu_uni_add_dev for per-link BSSSean Wang
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 <sean.wang@mediatek.com> Link: https://patch.msgid.link/20240613030241.5771-6-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-07-09wifi: mt76: mt792x: add struct mt792x_chanctxDeren Wu
We are introducing a new structure, mt792x_chanctx, to quickly identify the linked BSS it is working on. This eliminates the need to search in mt7921_ctx_iter() or mt7925_ctx_iter() when the channel context changes. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Link: https://patch.msgid.link/20240613030241.5771-4-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-07-09wifi: mt76: mt792x: add struct mt792x_link_staDeren Wu
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 <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Link: https://patch.msgid.link/20240613030241.5771-3-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-07-09wifi: mt76: mt792x: add struct mt792x_bss_confDeren Wu
We are introducing a new structure, mt792x_bss_conf, to manage per-link configurations in preparation for future STA support of Multi-Link Operation (MLO). The patch does not include any logic changes, only structural changes. We have moved relevant parameters from the mt7921x_vif structure such as to mt76 of mt76_vif structure, rssi and Tx queue parameters to mt7921x_bss_conf structure. We can access those members to configure the BSS for this interface, whether it is our own BSS or the one we are associated with. However, we have not yet created the per-link BSS configuration indexed by link ID for Multi-Link Device (MLD) support. This step needs to be extended before adding MLD support for AP mode. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Link: https://patch.msgid.link/20240613030241.5771-2-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-06-27Merge tag 'wireless-next-2024-06-27' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Highlights this time are: - cfg80211/nl80211: * improvements for 6 GHz regulatory flexibility - mac80211: * use generic netdev stats * multi-link improvements/fixes - brcmfmac: * MFP support (to enable WPA3) - wilc1000: * suspend/resume improvements - iwlwifi: * remove support for older FW for new devices * fast resume (keeping the device configured) - wl18xx: * support newer firmware versions * tag 'wireless-next-2024-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (100 commits) wifi: brcmfmac: of: Support interrupts-extended wifi: brcmsmac: advertise MFP_CAPABLE to enable WPA3 net: rfkill: Correct return value in invalid parameter case wifi: mac80211: fix NULL dereference at band check in starting tx ba session wifi: iwlwifi: mvm: fix rs.h kernel-doc wifi: iwlwifi: fw: api: datapath: fix kernel-doc wifi: iwlwifi: fix remaining mistagged kernel-doc comments wifi: iwlwifi: fix prototype mismatch kernel-doc warnings wifi: iwlwifi: fix kernel-doc in iwl-fh.h wifi: iwlwifi: fix kernel-doc in iwl-trans.h wifi: iwlwifi: pcie: fix kernel-doc wifi: iwlwifi: dvm: fix kernel-doc warnings wifi: iwlwifi: mvm: don't log error for failed UATS table read wifi: iwlwifi: trans: make bad state warnings wifi: iwlwifi: fw: api: fix some kernel-doc wifi: iwlwifi: mvm: remove init_dbg module parameter wifi: iwlwifi: update the BA notification API wifi: iwlwifi: mvm: always unblock EMLSR on ROC end wifi: iwlwifi: mvm: use IWL_FW_CHECK for link ID check wifi: iwlwifi: mvm: don't flush BSSes on restart with MLD API ... ==================== Link: https://patch.msgid.link/20240627114135.28507-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-06-26wifi: mac80211: inform the low level if drv_stop() is a suspendEmmanuel Grumbach
This will allow the low level driver to take different actions for different flows. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20240618192529.739036208b6e.Ie18a2fe8e02bf2717549d39420b350cfdaf3d317@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-06-20wifi: mt76: un-embedd netdev from mt76_devBreno Leitao
Embedding net_device into structures prohibits the usage of flexible arrays in the net_device structure. For more details, see the discussion at [1]. Un-embed the net_devices from struct mt76_dev by converting them into pointers, and allocating them dynamically. Use the leverage alloc_netdev_dummy() to allocate the net_device object at mt76_dma_init(). The free of the device occurs at mt76_dma_cleanup(). Link: https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/ [1] Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Breno Leitao <leitao@debian.org> Acked-by: Kalle Valo <kvalo@kernel.org> Link: https://patch.msgid.link/20240619105311.3144908-1-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-02wifi: mt76: mt7921e: add LED control supportHao Zhang
Introduce wifi LED switch control, add flow to Control a wifi gpio pin based on the status of WIFI radio, if the pin is connected to an LED, the LED will indicate the status of the WiFi radio. Signed-off-by: Hao Zhang <hao.zhang@mediatek.com> Co-developed-by: Quan Zhou <quan.zhou@mediatek.com> Signed-off-by: Quan Zhou <quan.zhou@mediatek.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-05-02wifi: mt76: mt7921: cqm rssi low/high event notifyRong Yan
The implementation amounts to setting the driver flag IEEE80211_VIF_SUPPORTS_CQM_RSSI, and then providing mechanisms for continuously updating enough information to be able to provide notifications to userspace when RSSI drops below a certain threshold Signed-off-by: Rong Yan <rong.yan@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-05-02wifi: mt76: make const arrays in functions staticFelix Fietkau
Reduces size by avoiding duplicates Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-05-02wifi: mt76: mt7921s: fix potential hung tasks during chip recoveryLeon Yen
During chip recovery (e.g. chip reset), there is a possible situation that kernel worker reset_work is holding the lock and waiting for kernel thread stat_worker to be parked, while stat_worker is waiting for the release of the same lock. It causes a deadlock resulting in the dumping of hung tasks messages and possible rebooting of the device. This patch prevents the execution of stat_worker during the chip recovery. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <MingYen.Hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-05-02wifi: mt76: mt7921: introduce mt7920 PCIe supportDeren Wu
mt7920e is a mt7921 series chipset with 802.11ax 2x2:2SS support. The major difference is in firmware side only, at this moment. This patch would add some mandatory changes for new chip id and firmware download control. Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-02-22wifi: mt76: mt7921: fix suspend issue on MediaTek COB platformMichael Lo
MediaTek's controller driver on COB platform (e.g. MT8188) is capable of controlling power supplies and reset pin of a component (e.g. a WIFI chip) in power-on and power-off process. Due to this optional feature, mt76 need to inform controller that mt76 need to keep power during suspend. Otherwise WIFI will be powered off when system enters suspend process. The "wakeup-source" property was used for the device that need this to go into suspend mode so that mt76 suspend handler doesn't fail and the system is able to enter into a suspend state. An example: wifi: mt7921@0 { wifi0{ reg = <0x0000 0 0 0 0>; wakeup-source; }; }; Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <MingYen.Hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-02-22wifi: mt76: mt7921: fix a potential association failure upon resumingLeon Yen
In multi-channel scenarios, the granted channel must be aborted before suspending. Otherwise, the firmware will be put into a wrong state, resulting in an association failure after resuming. With this patch, the granted channel will be aborted before suspending if necessary. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-02-22wifi: mt76: mt7921: fix the unfinished command of regd_notifier before suspendMing Yen Hsieh
Before entering suspend, we need to ensure that all MCU command are completed. In some cases, such as with regd_notifier, there is a chance that CLC commands, will be executed before suspend. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-02-22wifi: mt76: mt7921: fix incorrect type conversion for CLC commandMing Yen Hsieh
clc->len is defined as 32 bits in length, so it must also be operated on with 32 bits, not 16 bits. Fixes: fa6ad88e023d ("wifi: mt76: mt7921: fix country count limitation for CLC") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202312112104.Zkc3QUHr-lkp@intel.com/ Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-02-22wifi: mt76: mt7921e: fix use-after-free in free_irq()Deren Wu
From commit a304e1b82808 ("[PATCH] Debug shared irqs"), there is a test to make sure the shared irq handler should be able to handle the unexpected event after deregistration. For this case, let's apply MT76_REMOVED flag to indicate the device was removed and do not run into the resource access anymore. BUG: KASAN: use-after-free in mt7921_irq_handler+0xd8/0x100 [mt7921e] Read of size 8 at addr ffff88824a7d3b78 by task rmmod/11115 CPU: 28 PID: 11115 Comm: rmmod Tainted: G W L 5.17.0 #10 Hardware name: Micro-Star International Co., Ltd. MS-7D73/MPG B650I EDGE WIFI (MS-7D73), BIOS 1.81 01/05/2024 Call Trace: <TASK> dump_stack_lvl+0x6f/0xa0 print_address_description.constprop.0+0x1f/0x190 ? mt7921_irq_handler+0xd8/0x100 [mt7921e] ? mt7921_irq_handler+0xd8/0x100 [mt7921e] kasan_report.cold+0x7f/0x11b ? mt7921_irq_handler+0xd8/0x100 [mt7921e] mt7921_irq_handler+0xd8/0x100 [mt7921e] free_irq+0x627/0xaa0 devm_free_irq+0x94/0xd0 ? devm_request_any_context_irq+0x160/0x160 ? kobject_put+0x18d/0x4a0 mt7921_pci_remove+0x153/0x190 [mt7921e] pci_device_remove+0xa2/0x1d0 __device_release_driver+0x346/0x6e0 driver_detach+0x1ef/0x2c0 bus_remove_driver+0xe7/0x2d0 ? __check_object_size+0x57/0x310 pci_unregister_driver+0x26/0x250 __do_sys_delete_module+0x307/0x510 ? free_module+0x6a0/0x6a0 ? fpregs_assert_state_consistent+0x4b/0xb0 ? rcu_read_lock_sched_held+0x10/0x70 ? syscall_enter_from_user_mode+0x20/0x70 ? trace_hardirqs_on+0x1c/0x130 do_syscall_64+0x5c/0x80 ? trace_hardirqs_on_prepare+0x72/0x160 ? do_syscall_64+0x68/0x80 ? trace_hardirqs_on_prepare+0x72/0x160 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Closes: https://lore.kernel.org/linux-wireless/CABXGCsOdvVwdLmSsC8TZ1jF0UOg_F_W3wqLECWX620PUkvNk=A@mail.gmail.com/ Fixes: 9270270d6219 ("wifi: mt76: mt7921: fix PCI DMA hang after reboot") Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-01-31wifi: fill in MODULE_DESCRIPTION()s for mt76 driversBreno Leitao
W=1 builds now warn if module is built without a MODULE_DESCRIPTION(). Add descriptions to the MediaTek mt76 drivers. Here is a sorted list of descriptions. It might make the reviewing process easier. MODULE_DESCRIPTION("MediaTek MT7603E and MT76x8 wireless driver"); MODULE_DESCRIPTION("MediaTek MT7615E and MT7663E wireless driver"); MODULE_DESCRIPTION("MediaTek MT7615E MMIO helpers"); MODULE_DESCRIPTION("MediaTek MT7663 SDIO/USB helpers"); MODULE_DESCRIPTION("MediaTek MT7663S (SDIO) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7663U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x02 helpers"); MODULE_DESCRIPTION("MediaTek MT76x02 MCU helpers"); MODULE_DESCRIPTION("MediaTek MT76x0E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x0U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x2 EEPROM helpers"); MODULE_DESCRIPTION("MediaTek MT76x2E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x2U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT76x connac layer helpers"); MODULE_DESCRIPTION("MediaTek MT76x EEPROM helpers"); MODULE_DESCRIPTION("MediaTek MT76x helpers"); MODULE_DESCRIPTION("MediaTek MT76x SDIO helpers"); MODULE_DESCRIPTION("MediaTek MT76x USB helpers"); MODULE_DESCRIPTION("MediaTek MT7915E MMIO helpers"); MODULE_DESCRIPTION("MediaTek MT7921 core driver"); MODULE_DESCRIPTION("MediaTek MT7921E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7921S (SDIO) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7921U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7925 core driver"); MODULE_DESCRIPTION("MediaTek MT7925E (PCIe) wireless driver"); MODULE_DESCRIPTION("MediaTek MT7925U (USB) wireless driver"); MODULE_DESCRIPTION("MediaTek MT792x core driver"); MODULE_DESCRIPTION("MediaTek MT792x USB helpers"); MODULE_DESCRIPTION("MediaTek MT7996 MMIO helpers"); Signed-off-by: Breno Leitao <leitao@debian.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://msgid.link/20240130104243.3025393-10-leitao@debian.org
2023-12-18Merge tag 'wireless-next-2023-12-18' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.8 The second features pull request for v6.8. A bigger one this time with changes both to stack and drivers. We have a new Wifi band RFI (WBRF) mitigation feature for which we pulled an immutable branch shared with other subsystems. And, as always, other new features and bug fixes all over. Major changes: cfg80211/mac80211 * AMD ACPI based Wifi band RFI (WBRF) mitigation feature * Basic Service Set (BSS) usage reporting * TID to link mapping support * mac80211 hardware flag to disallow puncturing iwlwifi * new debugfs file fw_dbg_clear mt76 * NVMEM EEPROM improvements * mt7996 Extremely High Throughpu (EHT) improvements * mt7996 Wireless Ethernet Dispatcher (WED) support * mt7996 36-bit DMA support ath12k * support one MSI vector * WCN7850: support AP mode * tag 'wireless-next-2023-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (207 commits) wifi: mt76: mt7996: Use DECLARE_FLEX_ARRAY() and fix -Warray-bounds warnings wifi: ath11k: workaround too long expansion sparse warnings Revert "wifi: ath12k: use ATH12K_PCI_IRQ_DP_OFFSET for DP IRQ" wifi: rt2x00: remove useless code in rt2x00queue_create_tx_descriptor() wifi: rtw89: only reset BB/RF for existing WiFi 6 chips while starting up wifi: rtw89: add DBCC H2C to notify firmware the status wifi: rtw89: mac: add suffix _ax to MAC functions wifi: rtw89: mac: add flags to check if CMAC and DMAC are enabled wifi: rtw89: 8922a: add power on/off functions wifi: rtw89: add XTAL SI for WiFi 7 chips wifi: rtw89: phy: print out RFK log with formatted string wifi: rtw89: parse and print out RFK log from C2H events wifi: rtw89: add C2H event handlers of RFK log and report wifi: rtw89: load RFK log format string from firmware file wifi: rtw89: fw: add version field to BB MCU firmware element wifi: rtw89: fw: load TX power track tables from fw_element wifi: mwifiex: configure BSSID consistently when starting AP wifi: mwifiex: add extra delay for firmware ready wifi: mac80211: sta_info.c: fix sentence grammar wifi: mac80211: rx.c: fix sentence grammar ... ==================== Link: https://lore.kernel.org/r/20231218163900.C031DC433C9@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-11wifi: mt76: mt7921: fix wrong 6Ghz power typeMing Yen Hsieh
To avoid using incorrect 6g power settings after disconnection, it should to update back to the default state when disconnected. Fixes: 51ba0e3a15eb ("wifi: mt76: mt7921: add 6GHz power type support for clc") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-12-11wifi: mt76: mt7921: fix CLC command timeout when suspend/resumeMing Yen Hsieh
When enter suspend/resume while in a connected state, the upper layer will trigger disconnection before entering suspend, and at the same time, it will trigger regd_notifier() and update CLC, causing the CLC event to not be received due to suspend, resulting in a command timeout. Therefore, the update of CLC is postponed until resume, to ensure data consistency and avoid the occurrence of command timeout. Fixes: 4fc8df50fd41 ("wifi: mt76: mt7921: get regulatory information from the clc event") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-12-11wifi: mt76: mt7921: fix country count limitation for CLCMing Yen Hsieh
Due to the increase in the number of power tables for 6Ghz on CLC, the variable nr_country is no longer sufficient to represent the total quantity. Therefore, we have switched to calculating the length of clc buf to obtain the correct power table. Additionally, the version number has been incremented to 1. Fixes: 23bdc5d8cadf ("wifi: mt76: mt7921: introduce Country Location Control support") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-12-11wifi: mt76: mt7921: reduce the size of MCU firmware download Rx queueSean Wang
We actually don't need the reserve the 512 entries for the MCU firmware download Rx queue because the queue was only used in the firmware download phase to save the most of space and the reduction can significantly help with reducing latency we spent by ~20% further in resetting the Rx queue as the device was waking up from deep sleep mode. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
generated by cgit (git 2.34.1) at 2025-07-15 16:10:50 +0000