Hi Doug, I have updated the kernel to 5.10.59 which should be guaranteed to include your reset patch. But I could not connect to the WiFi. # ifconfig mlan0 up [10262.988302] mwifiex_sdio mmc0:0001:1: host_to_card, write iomem (1) failed: -110 [10262.996049] mwifiex_sdio mmc0:0001:1: write CFG reg failed [10263.007337] mwifiex_sdio mmc0:0001:1: host_to_card, write iomem (2) failed: -110 [10263.015299] mwifiex_sdio mmc0:0001:1: write CFG reg failed [10263.021675] mwifiex_sdio mmc0:0001:1: host_to_card, write iomem (3) failed: -110 [10263.029839] mwifiex_sdio mmc0:0001:1: write CFG reg failed [10263.035386] mwifiex_sdio mmc0:0001:1: DNLD_CMD: host to card failed # echo 1 > /sys/kernel/debug/mwifiex/mlan0/reset [10517.451193] mwifiex_sdio mmc0:0001:1: Resetting per request [10517.479235] mwifiex_sdio mmc0:0001:1: host_to_card, write iomem (1) failed: -110 [10517.490283] mwifiex_sdio mmc0:0001:1: write CFG reg failed [10517.498995] mwifiex_sdio mmc0:0001:1: host_to_card, write iomem (2) failed: -110 [10517.509257] mwifiex_sdio mmc0:0001:1: write CFG reg failed [10517.517649] mwifiex_sdio mmc0:0001:1: host_to_card, write iomem (3) failed: -110 [10517.527838] mwifiex_sdio mmc0:0001:1: write CFG reg failed [10517.533765] mwifiex_sdio mmc0:0001:1: DNLD_CMD: host to card failed [10529.871099] mwifiex_sdio mmc0:0001:1: cmd_wait_q terminated: -110 [10529.883401] mwifiex_sdio mmc0:0001:1: PREP_CMD: FW in reset state [10529.890488] mwifiex_sdio mmc0:0001:1: deleting the crypto keys [10529.896573] mwifiex_sdio mmc0:0001:1: PREP_CMD: FW in reset state [10529.903316] mwifiex_sdio mmc0:0001:1: deleting the crypto keys [10530.014334] mwifiex_sdio mmc0:0001:1: DNLD_CMD: host to card failed [10530.049847] mwifiex_sdio mmc0:0001:1: info: shutdown mwifiex... [10530.239910] mwifiex_sdio mmc0:0001:1: PREP_CMD: card is removed [10530.247919] mwifiex_sdio mmc0:0001:1: PREP_CMD: card is removed [10530.268721] mwifiex_sdio mmc0:0001:1: PREP_CMD: card is removed [10531.665962] mwifiex_sdio mmc0:0001:1: info: FW download over, size 255988 bytes [10531.911608] mwifiex_sdio mmc0:0001:1: WLAN FW is active [10531.964352] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x242 error, result=0x2 [10531.971894] mwifiex_sdio mmc0:0001:1: mwifiex_process_cmdresp: cmd 0x242 failed during initialization [10532.125947] mwifiex_sdio mmc0:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (14.68.36.p204) [10532.134573] mwifiex_sdio mmc0:0001:1: driver_version = mwifiex 1.0 (14.68.36.p204) Again, the /sys/kernel/debug/mwifiex/mlan0 is removed, it is completely broken for both WiFi modem reset and /sys/kernel/debug/mwifiex/mlan0/reset, let me know your advice to debug it or modify mwifiex source files. Thank you. Kind regards, - JH On 11/20/21, Jupiter <jupiter.hce@xxxxxxxxx> wrote: > Hi Doug, > > Thank you for your kindly response. > >> I think I blocked most of this stuff out of my mind and it's also been >> over 2 years. ;-) ...but any chance that Bluetooth could somehow be >> involved, too? I seem to remember that things got complicated because >> we could have both functions going at once. I think I advocated for >> keeping it simple and always doing a full unplug / replug of the card >> to reset it, but from notes I guess upstream landed it so you need to >> handle the two cases (just WiFi vs WiFi+BT) in totally different ways. > > I think the main issue is many of you tested the mwifiex reset on > Marvell card (or BT?), unfortunately I am using uBlox Lily module > which is a WiFi only no Bluetooth, it is a iMX6ULL custom design, MMC > and SDIO are based on iMX6ULL EVK. I don't think anyone tested mwifiex > reset on that card, to make it worse, I am new to mwifiex, I might be > able to assist with debugging, but certainly not in the position to > contribute to fixing it. > >> It looks like there's ongoing discussion going on in >> https://issuetracker.google.com/172214846. Maybe something there would >> be helpful? > > I am using mwifiex on kernel upstream v4.19.75, does that include your > fix? Do you have a patch I can add to my Yocto build? Should I make > comments to the discussion at > https://issuetracker.google.com/172214846? > > Thank you very much Doug. > > - JH > -- "A man can fail many times, but he isn't a failure until he begins to blame somebody else." -- John Burroughs
