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2025-05-22wifi: mt76: fix available_antennas settingShayne Chen1-2/+4
Check if available_antennas_tx and available_antennas_rx are already set during the per-chip initialization phase; otherwise, they could be overwritten with incorrect values. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-8-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: fix RX buffer size of MCU eventShayne Chen2-2/+5
Some management frames are first processed by the firmware and then passed to the driver through the MCU event rings. In CONNAC3, event rings do not support scatter-gather and have a size limitation of 2048 bytes. If a packet sized between 1728 and 2048 bytes arrives from an event ring, the ring will hang because the driver attempts to use scatter-gather to process it. To fix this, include the size of struct skb_shared_info in the MCU RX buffer size to prevent scatter-gather from being used for event skb in mt76_dma_rx_fill_buf(). Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-7-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: change max beacon sizePeter Chiu1-2/+2
According to hardware capability, the maximum beacon size is 2048 bytes minus the size of TLV headers. Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-6-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: fix invalid NSS setting when TX path differs from NSSPeter Chiu3-1/+4
The maximum TX path and NSS may differ on a band. For example, one variant of the MT7992 has 5 TX paths and 4 NSS on the 5 GHz band. To address this, add orig_antenna_mask to record the maximum NSS and prevent setting an invalid NSS in mt7996_set_antenna(). Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-5-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: drop fragments with multicast or broadcast RABenjamin Lin1-0/+8
IEEE 802.11 fragmentation can only be applied to unicast frames. Therefore, drop fragments with multicast or broadcast RA. This patch addresses vulnerabilities such as CVE-2020-26145. Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-4-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: set EHT max ampdu length capabilityPeter Chiu1-0/+3
Set the max AMPDU length in the EHT MAC CAP. Without this patch, the peer station cannot obtain the correct capability, which prevents achieving peak throughput on the 2 GHz band. Fixes: 1816ad9381e0 ("wifi: mt76: mt7996: add max mpdu len capability") Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-3-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: fix beamformee SS fieldHoward Hsu1-4/+4
Fix the beamformee SS field for the mt7996, mt7992 and mt7990 chipsets. For the mt7992, this value shall be set to 0x4, while the others shall be set to 0x3. Fixes: 5b20557593d4 ("wifi: mt76: connac: adjust phy capabilities based on band constraints") Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-2-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: remove capability of partial bandwidth UL MU-MIMOHoward Hsu2-4/+2
The firmware only supports full bandwidth UL MU-MIMO, so remove the partial bandwidth capability from HE PHY CAP. Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250515032952.1653494-1-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: add test mode supportMichael Lo4-0/+209
The test mode interface allows controlled execution of chip-level operations such as continuous transmission, reception tests, and register access, which are essential during bring-up, diagnostics, and factory testing. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Michael Lo <michael.lo@mediatek.com> Link: https://patch.msgid.link/20250505233618.1951021-2-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: extend MCU support for testmodeMichael Lo3-7/+56
Add MCU command and its handling needed for testmode support on MT7925. This enables low-level chip testing features such as continuous TX/RX.. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Michael Lo <michael.lo@mediatek.com> Link: https://patch.msgid.link/20250505233618.1951021-1-sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: ensure all MCU commands wait for responseMichael Lo1-8/+8
Modify MCU command sending functions to wait for a response, ensuring consistent behavior across all commands and improves reliability by confirming that each command is processed successfully. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250414013954.1151774-3-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: refine the sniffer commnadMing Yen Hsieh1-2/+0
Remove a duplicate call to `mt76_mcu_send_msg` to fix redundant operations in the sniffer command handling. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250414013954.1151774-2-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: prevent multiple scan commandsMing Yen Hsieh1-0/+3
Add a check to ensure only one scan command is active at a time by testing the MT76_HW_SCANNING state. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250414013954.1151774-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7915: Fix null-ptr-deref in mt7915_mmio_wed_init()Henry Martin1-0/+6
devm_ioremap() returns NULL on error. Currently, mt7915_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7915_mmio_wed_init(). Fixes: 4f831d18d12d ("wifi: mt76: mt7915: enable WED RX support") Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com> Link: https://patch.msgid.link/20250407061900.85317-1-bsdhenrymartin@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init()Henry Martin1-0/+3
devm_ioremap() returns NULL on error. Currently, mt7996_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7996_mmio_wed_init() Fixes: 83eafc9251d6 ("wifi: mt76: mt7996: add wed tx support") Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com> Link: https://patch.msgid.link/20250407032349.83360-1-bsdhenrymartin@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: mt7925: add RNR scan support for 6GHzMing Yen Hsieh2-13/+38
Enhance the mt7925 to include RNR scan support. It adds the necessary RNR information to the scan command. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250321013829.3598-2-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: add mt76_connac_mcu_build_rnr_scan_param routineMing Yen Hsieh3-0/+53
Introduce mt76_connac_mcu_build_rnr_scan_param routine for handling RNR scan. This is a preliminary patch to enable RNR scan in mt7921 and mt7925 driver. Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250321013829.3598-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-22wifi: mt76: scan: Fix 'mlink' dereferenced before IS_ERR_OR_NULL checkFeng Jiang1-1/+3
Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/202504011739.HvUKtUUe-lkp@intel.com/ Fixes: 3ba20af886d1 ("wifi: mt76: scan: set vif offchannel link for scanning/roc") Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Link: https://patch.msgid.link/20250402062415.25434-1-jiangfeng@kylinos.cn Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: remove duplicate check in mt7996_mcu_sta_mld_setup_tlv()Dan Carpenter1-3/+0
The "msta_link" pointer has two NULL checks. Delete the second check. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/fde7246b-08a2-4c2f-b2dc-c3fd0e6b300b@stanley.mountain Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21Revert "wifi: mt76: Check link_conf pointer in mt76_connac_mcu_sta_basic_tlv()"Lorenzo Bianconi1-1/+1
In mt76_connac_mcu_sta_basic_tlv() link_conf is always not NULL. Revert the commit '9890624c1b39 ("wifi: mt76: Check link_conf pointer in mt76_connac_mcu_sta_basic_tlv()")' in order to fix the following warning: drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c:394 mt76_connac_mcu_sta_basic_tlv() warn: variable dereferenced before check 'link_conf' This reverts commit 9890624c1b3948c1c7f1d0e19ef0bb7680b8c80d. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250325-mt76_connac_mcu_sta_basic_tlv-link_conf-revert-v1-1-b84efefb74ee@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: fix uninitialized symbol warningsunliming1-2/+2
Fix below smatch warnings: drivers/net/wireless/mediatek/mt76/mt7996/main.c:952 mt7996_mac_sta_add_links() error: uninitialized symbol 'err'. drivers/net/wireless/mediatek/mt76/mt7996/main.c:1133 mt7996_set_rts_threshold() error: uninitialized symbol 'ret'. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <error27@gmail.com> Closes: https://lore.kernel.org/r/202504101051.1ya4Z4va-lkp@intel.com/ Signed-off-by: sunliming <sunliming@kylinos.cn> Link: https://patch.msgid.link/20250419031528.2073892-1-sunliming@linux.dev Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: avoid null deref in mt7996_stop_phy()Qasim Ijaz1-1/+3
In mt7996_stop_phy() the mt7996_phy structure is dereferenced before the null sanity check which could lead to a null deref. Fix by moving the dereference operation after the sanity check. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Link: https://patch.msgid.link/20250421111344.11484-1-qasdev00@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: avoid NULL pointer dereference in mt7996_set_monitor()Qasim Ijaz1-1/+3
The function mt7996_set_monitor() dereferences phy before the NULL sanity check. Fix this to avoid NULL pointer dereference by moving the dereference after the check. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Link: https://patch.msgid.link/20250421112544.13430-1-qasdev00@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7921: add 160 MHz AP for mt7922 deviceSamuel Williams1-0/+5
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>
2025-05-21wifi: mt76: mt7925: fix host interrupt register initializationMichael Lo2-4/+1
ensure proper interrupt handling and aligns with the hardware spec by updating the register offset for MT_WFDMA0_HOST_INT_ENA. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250509083512.455095-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7925: introduce thermal protectionLeon Yen3-1/+26
Add thermal protection to prevent the chip from possible overheating due to prolonged high traffic and adverse operating conditions. Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250509082117.453819-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt76x2: Add support for LiteOn WN4516R,WN4519RHenk Vergonet2-1/+14
Adds support for: - LiteOn WN4516R - LiteOn WN4519R Both use: - A nonstandard USB connector - Mediatek chipset MT7600U - ASIC revision: 76320044 Disabled VHT support on ASIC revision 76320044: This fixes the 5G connectibity issue on LiteOn WN4519R module see https://github.com/openwrt/mt76/issues/971 And may also fix the 5G issues on the XBox One Wireless Adapter see https://github.com/openwrt/mt76/issues/200 I have looked at the FCC info related to the MT7632U chip as mentioned in here: https://github.com/openwrt/mt76/issues/459 These confirm the chipset does not support 'ac' mode and hence VHT should be turned of. Signed-off-by: Henk Vergonet <henk.vergonet@gmail.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250418143914.31384-1-henk.vergonet@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: Remove an unneeded local variable in mt76x02_dma_init()Christophe JAILLET1-1/+0
Remove 't' which is unneeded since commit f3950a414143 ("mt76: set txwi_size according to the driver value") This slightly simplifies the code. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://patch.msgid.link/e86d5602bdd8b6bd22258ee69536992f39470bf5.1744928865.git.christophe.jaillet@wanadoo.fr Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: prevent uninit return in mt7996_mac_sta_add_linksQasim Ijaz1-3/+9
If link_conf_dereference_protected() or mt7996_vif_link() or link_sta_dereference_protected() fail the code jumps to the error_unlink label and returns ret which is uninitialised. Fix this by setting err before jumping to error_unlink. Fixes: c7e4fc362443 ("wifi: mt76: mt7996: Update mt7996_mcu_add_sta to MLO support") Fixes: dd82a9e02c05 ("wifi: mt76: mt7996: Rely on mt7996_sta_link in sta_add/sta_remove callbacks") Signed-off-by: Qasim Ijaz <qasdev00@gmail.com> Link: https://patch.msgid.link/20250421110550.9839-1-qasdev00@gmail.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21Revert "wifi: mt76: mt7996: fill txd by host driver"Shayne Chen1-4/+9
This reverts commit 3b522cadedfe6e9e0e8193d7d4ab5aa8d0c73209. The MTK connac3 has introduced new hardware, SDO (Software Defined Offload), to offload the process of filling the TX descriptor. Initially, there were some issues, but after several fixes, it should now be stable, allowing us to revert this commit. Additionally, activating SDO is essential for the proper functioning of features like TX checksum offload. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250328022847.1612082-1-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: Add NULL check in mt7996_thermal_initCharles Han1-0/+3
devm_kasprintf() can return a NULL pointer on failure,but this returned value in mt7996_thermal_init() is not checked. Add NULL check in mt7996_thermal_init(), to handle kernel NULL pointer dereference error. Fixes: 69d54ce7491d ("wifi: mt76: mt7996: switch to single multi-radio wiphy") Signed-off-by: Charles Han <hanchunchao@inspur.com> Link: https://patch.msgid.link/20250407095551.32127-1-hanchunchao@inspur.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7925: add EHT preamble puncturingAllan Wang4-0/+61
Add mt7925 EHT preamble puncturing. Signed-off-by: Allan Wang <allan.wang@mediatek.com> Link: https://patch.msgid.link/20250401083525.2734333-1-allan.wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7925: Fix logical vs bitwise typoDan Carpenter1-1/+1
This was supposed to be & instead of &&. Fixes: f0317215b367 ("wifi: mt76: mt7925: add EHT control support based on the CLC data") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://patch.msgid.link/d323a443-4e81-4064-8563-b62274b53ef4@stanley.mountain Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: rework radar HWRDD idxStanleyYP Wang5-69/+75
The definition of MT_RX_SEL (for rdd_rx_sel) is mixed with the definition of HWRDD idx. For example, MT_RX_SEL2 is for background HWRDD idx, not an option of rdd_rx_sel. Additionally, HWRDD idx does not exactly map to band idx for Connac 3 chips. So, add mt7996_get_rdd_idx as a helper function. Finally, remove some parts of the code inherited from the legacy chips. For instance, 1. rdd_state is used for single-band-dual-HWRDD chips (for 80+80), especially the 76xx series. 2. rdd_rx_sel is also used for single-band-dual-HWRDD chips rx_sel = 0 => RDD0 for WF0, RDD1 for WF2 rx_sel = 1 => RDD0 for WF1, RDD1 for WF3 Chip Variants | 5G rdd idx | Background rdd idx ---------------------------|----------------|------------------- MT7996 (except 205/255) | 1 | 2 MT7992 | 1 | 2 MT7990 | 1 | 2 Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Reviewed-by: Shayne Chen <shayne.chen@mediatek.com> Reviewed-by: Money Wang <money.wang@mediatek.com> Link: https://patch.msgid.link/20250320015926.3948672-1-StanleyYP.Wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7915: rework radar HWRDD idxStanleyYP Wang5-60/+87
The definition of MT_RX_SEL (for rdd_rx_sel) is mixed with the definition of HWRDD idx. For example, MT_RX_SEL2 is for background HWRDD idx, not an option of rdd_rx_sel. Therefore, add mt7915_get_rdd_idx as a helper function to get the HWRDD idx for each variants. Additionally, remove some parts of the code inherited from the legacy chips. For instance, 1. rdd_state is used for single-band-dual-HWRDD chips (for 80+80), especially the 76xx series. 2. rdd_rx_sel is also used for single-band-dual-HWRDD chips rx_sel = 0 => RDD0 for WF0, RDD1 for WF2 rx_sel = 1 => RDD0 for WF1, RDD1 for WF3 Chip Variants | 5G rdd idx(=bandidx)| Background rdd idx -------------------------------|---------------------|------------------- MT7915A | 0 | 2 MT7915D | 1 | 2 MT7916 2G + 5G (2T2R+1R) | 1 | 2 MT7916 2G + 5G (3T3R) | 1 | N/A MT7981 2G + 5G | 1 | N/A MT7986 2G + 5G (one adie DBDC) | 1 | N/A MT7986 5G (one adie) | 1 (bandidx=MT_BAND1)| N/A MT7986 2G + 5G (dual adie) | 1 | N/A Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Reviewed-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250320015918.3948643-1-StanleyYP.Wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7915: set correct background radar capabilityStanleyYP Wang6-8/+49
Some of the variants do not support background radar, so add a helper to report background radar capability. For mt7916, only the variant of 5G 2T2R + 1R supports background radar. Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Reviewed-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250320015909.3948612-1-StanleyYP.Wang@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: add PCI device id for mt7990Peter Chiu1-2/+6
Add PCI device IDs to enable support for mt7990 chipsets. Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-11-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: rework background radar check for mt7990StanleyYP Wang3-20/+29
The MT7990 comes in 2T2R and 3T3R variants, with only the 2T2R supporting background radar. Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-10-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: connac: rework TX descriptor and TX free for mt7990Shayne Chen2-6/+37
Adjust the TX descriptor and TX free for updated hardware fields. This is a preliminary patch to support mt7990 chipset. Co-developed-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Co-developed-by: Benjamin Lin <benjamin-jw.lin@mediatek.com> Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-9-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: adjust HW capabilities for mt7990Peter Chiu2-5/+8
This is a preliminary patch to support mt7990 chipset. Co-developed-by: Howard Hsu <howard-yh.hsu@mediatek.com> Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-8-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: add eeprom support for mt7990StanleyYP Wang3-0/+16
Add eeprom definition and default bin file for mt7990. This is a preliminary patch to support mt7990 chipset. Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-7-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: rework register mapping for mt7990StanleyYP Wang2-25/+208
Rework register offset and l1/l2/cbtop mapping for mt7990. This is a preliminary patch to support mt7990 chipset. Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-6-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: rework DMA configuration for mt7990Peter Chiu3-63/+135
Modify DMA ring setting for mt7990. This is a preliminary patch to support mt7990 chipset. Co-developed-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-5-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: rework WA mcu command for mt7990Peter Chiu3-8/+50
Since mt7990 lacks WA firmware, some WA commands are not supported or need to be refactored to use the SDO command. This is a preliminary patch to support mt7990 chipset. Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-4-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: connac: add support to load firmware for mt7990StanleyYP Wang5-11/+36
Add firmware download support. Note that mt7990 does not have WA and DSP firmwares. This is a preliminary patch to support mt7990 chipset. Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-3-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mt76: mt7996: add macros for pci device idsShayne Chen7-22/+28
The chipset name (i.e., brand name) used by the driver may cause confusion with the PCI device ID when adding support for new chipsets. | Chipset name | PCI device id | |--------------|----------------| | 7996 | 0x7990, 0x7991 | | 7992 | 0x7992, 0x799a | | 7990 | 0x7993, 0x799b | To prevent confusion, replace the code that directly uses the device ID with macros. This is a preliminary patch to support mt7990 chipset. Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250409140750.724437-2-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-05-21wifi: mac80211: accept probe response on link address as wellAditya Kumar Singh1-1/+17
If a random MAC address is not requested during scan request, unicast probe response frames are only accepted if the destination address matches the interface address. This works fine for non-ML interfaces. However, with MLO, the same interface can have multiple links, and a scan on a link would be requested with the link address. In such cases, the probe response frame gets dropped which is incorrect. Therefore, add logic to check if any of the link addresses match the destination address if the interface address does not match. Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Link: https://patch.msgid.link/20250516-bug_fix_mlo_scan-v2-2-12e59d9110ac@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-21wifi: mac80211: validate SCAN_FLAG_AP in scan request during MLOAditya Kumar Singh1-1/+1
When an AP interface is already beaconing, a subsequent scan is not allowed unless the user space explicitly sets the flag NL80211_SCAN_FLAG_AP in the scan request. If this flag is not set, the scan request will be returned with the error code -EOPNOTSUPP. However, this restriction currently applies only to non-ML interfaces. For ML interfaces, scans are allowed without this flag being explicitly set by the user space which is wrong. This is because the beaconing check currently uses only the deflink, which does not get set during MLO. Hence to fix this, during MLO, use the existing helper ieee80211_num_beaconing_links() to know if any of the link is beaconing. Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Link: https://patch.msgid.link/20250516-bug_fix_mlo_scan-v2-1-12e59d9110ac@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-21wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback()Christian Lamparter3-4/+12
Robert Morris reported: |If a malicious USB device pretends to be an Intersil p54 wifi |interface and generates an eeprom_readback message with a large |eeprom->v1.len, p54_rx_eeprom_readback() will copy data from the |message beyond the end of priv->eeprom. | |static void p54_rx_eeprom_readback(struct p54_common *priv, | struct sk_buff *skb) |{ | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; | struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data; | | if (priv->fw_var >= 0x509) { | memcpy(priv->eeprom, eeprom->v2.data, | le16_to_cpu(eeprom->v2.len)); | } else { | memcpy(priv->eeprom, eeprom->v1.data, | le16_to_cpu(eeprom->v1.len)); | } | [...] The eeprom->v{1,2}.len is set by the driver in p54_download_eeprom(). The device is supposed to provide the same length back to the driver. But yes, it's possible (like shown in the report) to alter the value to something that causes a crash/panic due to overrun. This patch addresses the issue by adding the size to the common device context, so p54_rx_eeprom_readback no longer relies on possibly tampered values... That said, it also checks if the "firmware" altered the value and no longer copies them. The one, small saving grace is: Before the driver tries to read the eeprom, it needs to upload >a< firmware. the vendor firmware has a proprietary license and as a reason, it is not present on most distributions by default. Cc: <stable@kernel.org> Reported-by: Robert Morris <rtm@mit.edu> Closes: https://lore.kernel.org/linux-wireless/28782.1747258414@localhost/ Fixes: 7cb770729ba8 ("p54: move eeprom code into common library") Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Link: https://patch.msgid.link/20250516184107.47794-1-chunkeey@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-21wifi: check if socket flags are validBert Karwatzki5-8/+12
Checking the SOCK_WIFI_STATUS flag bit in sk_flags may give wrong results since sk_flags are part of a union and the union is used otherwise. Add sk_requests_wifi_status() which checks if sk is non-NULL, sk is a full socket (so flags are valid) and checks the flag bit. Fixes: 76a853f86c97 ("wifi: free SKBTX_WIFI_STATUS skb tx_flags flag") Suggested-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Bert Karwatzki <spasswolf@web.de> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Link: https://patch.msgid.link/20250520223430.6875-1-spasswolf@web.de [edit commit message, fix indentation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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