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authorSven Eckelmann <sven@narfation.org>2021-09-22 17:56:30 +0200
committerChristian Lamparter <chunkeey@gmail.com>2021-09-23 20:50:58 +0200
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ipq-wifi: Work around Plasma Cloud PA1200 5GHz crash
It was noticed [1] that the ath10k firmware crashes on 5GHz since OpenWrt 21.02.0. The problem seems to be triggered by the the nonLinearTxFir field in the 5GHz BDF. If baseEepHeader.nonLinearTxFir (offset 0xc2) is 1 then the firmware just crashes when setting up the 5Ghz radio using `ifconfig wlan1 up`: ath10k_ahb a800000.wifi: firmware crashed! (guid 9e36ee82-4d2c-4c63-b20b-609a1eaca30c) ath10k_ahb a800000.wifi: qca4019 hw1.0 target 0x01000000 chip_id 0x003b00ff sub 0000:0000 ath10k_ahb a800000.wifi: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0 ath10k_ahb a800000.wifi: firmware ver 10.4-3.6-00140 api 5 features no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps crc32 ba79b746 ath10k_ahb a800000.wifi: board_file api 2 bmi_id 0:17 crc32 5f400efc ath10k_ahb a800000.wifi: htt-ver 2.2 wmi-op 6 htt-op 4 cal pre-cal-file max-sta 512 raw 0 hwcrypto 1 ath10k_ahb a800000.wifi: firmware register dump: ath10k_ahb a800000.wifi: [00]: 0x0000000B 0x000015B3 0x009C3C27 0x00975B31 ath10k_ahb a800000.wifi: [04]: 0x009C3C27 0x00060530 0x00000018 0x004176B8 ath10k_ahb a800000.wifi: [08]: 0x00405A50 0x00412A30 0x00000000 0x00000000 ath10k_ahb a800000.wifi: [12]: 0x00000009 0x00000000 0x009B9742 0x009B974F ath10k_ahb a800000.wifi: [16]: 0x00971238 0x009B9742 0x00000000 0x00000000 ath10k_ahb a800000.wifi: [20]: 0x409C3C27 0x004053DC 0x00000D2C 0x00405A60 ath10k_ahb a800000.wifi: [24]: 0x809C3E13 0x0040543C 0x00000000 0xC09C3C27 ath10k_ahb a800000.wifi: [28]: 0x809B9AC5 0x0040547C 0x00412A30 0x0040549C ath10k_ahb a800000.wifi: [32]: 0x809B8ECD 0x0040549C 0x00000001 0x00412A30 ath10k_ahb a800000.wifi: [36]: 0x809B8FF3 0x004054CC 0x00412838 0x00000014 ath10k_ahb a800000.wifi: [40]: 0x809BEF98 0x0040551C 0x0041627C 0x00000002 ath10k_ahb a800000.wifi: [44]: 0x80986D47 0x0040553C 0x0041627C 0x00416A88 ath10k_ahb a800000.wifi: [48]: 0x809CBB0A 0x0040559C 0x0041ACC0 0x00000000 ath10k_ahb a800000.wifi: [52]: 0x809864EE 0x0040560C 0x0041ACC0 0x00000001 ath10k_ahb a800000.wifi: [56]: 0x809CA8A4 0x0040564C 0x0041ACC0 0x00000001 ath10k_ahb a800000.wifi: Copy Engine register dump: ath10k_ahb a800000.wifi: [00]: 0x0004a000 14 14 3 3 ath10k_ahb a800000.wifi: [01]: 0x0004a400 16 16 22 23 ath10k_ahb a800000.wifi: [02]: 0x0004a800 3 3 2 3 ath10k_ahb a800000.wifi: [03]: 0x0004ac00 15 15 15 15 ath10k_ahb a800000.wifi: [04]: 0x0004b000 4 4 44 4 ath10k_ahb a800000.wifi: [05]: 0x0004b400 3 3 2 3 ath10k_ahb a800000.wifi: [06]: 0x0004b800 1 1 1 1 ath10k_ahb a800000.wifi: [07]: 0x0004bc00 1 1 1 1 ath10k_ahb a800000.wifi: [08]: 0x0004c000 0 0 127 0 ath10k_ahb a800000.wifi: [09]: 0x0004c400 0 0 0 0 ath10k_ahb a800000.wifi: [10]: 0x0004c800 0 0 0 0 ath10k_ahb a800000.wifi: [11]: 0x0004cc00 0 0 0 0 ath10k_ahb a800000.wifi: failed to update channel list: -108 ath10k_ahb a800000.wifi: failed to set pdev regdomain: -108 ath10k_ahb a800000.wifi: failed to create WMI vdev 0: -108 ieee80211 phy1: Hardware restart was requested Since no actual solution is known (besides downgrading the ath10k firmware) it seems to be better to disable the nonLinearTxFir for now. [1] https://lore.kernel.org/ath10k/3423718.UToCqzeSYe@ripper/ Signed-off-by: Sven Eckelmann <sven@narfation.org>
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