Hi,

On Mon, Nov 22, 2021 at 8:39 PM Jupiter [off-list ref] wrote:

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.

Sorry, I think you're on your own here. I've only briefly touched upon
the Marvell reset code when I ran into trouble with it in the past but
it's definitely not something I have any real inside knowledge about.
My only suggestions would be to somehow get someone from Marvell (now
NXP I guess?) to help you debug or perhaps the people you got your
module from have some technical contacts that can help rope in someone
to help?

-Doug