[Banana BPI-R4] Wifi7 status

[Casulo]

Guys, so i have a mt7925e card on the R4. Installed openwrt's snapshot from yesterday, 2024-07-22. Installed the kmod for mt7925e and also downloaded the respective firmware in /lib/firmware/mediatek/mt7925/, when loading the module i got this:

root@OpenWrt:/# modprobe  mt7925e
[  274.685725] mt7925e 0000:01:00.0: assign IRQ: got 112
[  274.690818] mt7925e 0000:01:00.0: enabling device (0000 -> 0002)
[  274.696842] mt7925e 0000:01:00.0: enabling bus mastering
[  274.702238] mtk-pcie-gen3 11300000.pcie: msi#0x1 address_hi 0x0 address_lo 0x11300c00 data 1
[  274.762882] mt7925e 0000:01:00.0: ASIC revision: 79250000
root@OpenWrt:/# [  274.866523] mt7925e 0000:01:00.0: HW/SW Version: 0x8a108a10, Build Time: 20231227093012a
[  274.866523]
[  274.906177] pcieport 0000:00:00.0: AER: Multiple Corrected error message received from 0000:00:00.0
[  274.915242] pcieport 0000:00:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[  274.924800] pcieport 0000:00:00.0:   device [14c3:7988] error status/mask=00000081/00006000
[  274.933146] pcieport 0000:00:00.0:    [ 0] RxErr
[  274.939229] pcieport 0000:00:00.0:    [ 7] BadDLLP
[  275.224206] mt7925e 0000:01:00.0: WM Firmware Version: ____000000, Build Time: 20231227093232

The card does not show up in "ip a". Am i missing some step?

[DroZDi]

@Casulo it was mentioned in this thread that mt7925 card is supported by kernel 6.7+ Im not sure if with actual OpenWrt snapshot is working...

[Casulo]

It is: Linux OpenWrt 6.6.41

But the module do gets loaded, it's just the card does not show up.

BTW, i just went to https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/mediatek/mt7925 and downloaded the fiels via plain mode.

[Pulver]

If I do:

dmesg | grep 7925

I can see that I get a probe error with the mt7925e card in OpenWRT snapshot 6.6.x.x

[Casulo]

Well, this is kernel 6.6, and so, very early driver for the mt7925.

[danpawlik]

Probably you need to call wifi.
I got something like that in the /etc/rc.local

modprobe mt7925e
sleep 3
wifi up radio2

exit 0

Of course, check first what radio is used by mt7925.
I'm using firmware that is available in OpenWRT when I build an image. I push it to my repo

[Casulo]

Ok, i installed luci and configure ap mode from there, but the network takes a long time to show up on my phone. Same behaviour if i use debian and configure hostapd. So, i just guess the drivers are not very stable yet. Maybe they are ok client mode, but not ap.

[Pulver]

Got mt7925e up and running on Banana pi R4 (and raspberry pi) on OpenWRT snapshot today

Using SNAPSHOT (r27064-f20987c161) and after installing the available 7925 packages I downloaded the correct firmware from git.kernel.org

AP mode 6 GHz 160 Mhz available
(but probably not working right now)

[marcelocdutra]

@Pulver

firmware from git.kernel.org

How to install firmware from git.kernel.org?

I'm a Linux beginner, but I have BPI-R4 and I want my 7925 to work with Openwrt.

[Pulver]

If you are connected to the Banana pi with ssh, you write:

cd /lib/firmware/mediatek/

make a new folder for the mt7925e firmware:

mkdir mt7925

go to that folder:

cd mt7925

The firmware files are available here:

https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/mediatek/mt7925

You can right klick on the file where it says "plain" and copy the link - then just write "wget" and paste the link - like this:

wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/mediatek/mt7925/BT_RAM_CODE_MT7925_1_1_hdr.bin

do it with all three files so you have them all in your folder.

then reboot - after the reboot write:

modprobe mt7925e

and your 7925 card should be working

[marcelocdutra]

Thank you, I will use this new knowledge acquired for other needs.

I performed all the commands, when I perform the last command “modprobe mt7925e” the system freezes, I believe I can find out the reason. My adapter is the MT7925B22M, it is different. Can I install it with this procedure?

[Pulver]

No, thats the same card I have so it cant be the reason

The only thing i can think of is that i also have installed the drivers for mt7921.

I have both mt7921 and mt7922 and you have to install the drivers for 7921 to get 7922 to work.

Try installing every package that have "792" in the name - thats what I have

[DroZDi]

On OpenWrt 6.6.43 based on https://github.com/openwrt/openwrt/pull/15945/commits/1278a8bca1b66533ef1cdde0dc7cb89e00034764 we can build ath12k module but as mentioned there by hauke we should also build hostapd service with DRIVER_11BE_SUPPORT. Unfortunatelly we have 2 issues here:

1. make world is not taking actual version of hostapd from github (git clone git://w1.fi/hostap.git) but version from 2024.03.09
2. hostapd compilation fails with problem with MLD as below:
   /home/openwrt66/openwrt/build_dir/target-aarch64_cortex-a53_musl/hostapd-full-internal/hostapd-2024.03.09~695277a5/src/ap/sta_info.h: In function 'ap_sta_is_mld':
   /home/openwrt66/openwrt/build_dir/target-aarch64_cortex-a53_musl/hostapd-full-internal/hostapd-2024.03.09~695277a5/src/ap/sta_info.h:424:20: error: invalid use of undefined type 'struct hostapd_data'
   424 | return hapd->conf->mld_ap && sta && sta->mld_info.mld_sta;
   | ^~
   make[4]: *** [../src/build.rules:89: /home/openwrt66/openwrt/build_dir/target-aarch64_cortex-a53_musl/hostapd-full-internal/hostapd-2024.03.09~695277a5/build/hostapd/main.o] Error 1
   make[4]: Leaving directory '/home/openwrt66/openwrt/build_dir/target-aarch64_cortex-a53_musl/hostapd-full-internal/hostapd-2024.03.09~695277a5/hostapd'

[slh]

@DroZDi

make world is not taking actual version of hostapd from github (git clone git://w1.fi/hostap.git) but version from 2024.03.09

An update to hostapd v2.11/ d945ddd368085f255e68328f2d3b020ceea359af (2024-07-20) probably just depends on someone rebasing the (quite intensive) patchset and providing a tested PR. I wouldn't raise expectations for MLO and full wifi7 feature compatibility with that either, this is still a work in progress (on many fronts).

[Pulver]

Thanks for you work - greatly appreciated

Looking forward to try ath12k when it arrives

Saw a changlelog for hostapd v2.11 that said:

2024-07-20 - v2.11 * EHT/IEEE 802.11be/Wi-Fi 7 - add preliminary support
Something is happening at least

[DroZDi]

Could you please share screen from LUCI Wireless Overview page?

For those who compile images, there is my Makefile from ~/openwrt/package/kernel/mt76/ which allows also to install the firmware for mt7925. I dont know why in orginal one we have dependencies between 7921 and 7925 - I removed it in my file.

My observation 6G not working - perhaps due to changes above
Only in Legacy it works..

[Pulver]

This one ?

Yes, 6GHz does not work.

I installed it on a Nanopi R5S today without a problem, but with a Raspberry pi 5 it did not work - got a probe error.

Yesterday i got it working with Bananapi R4 and a Raspberry pi CM4 in a board with M.2 key e slot.

[danpawlik]

Hey folks,
I'm using also mt7925 and I don't have any issue to start wireless network on 2.4GHz, 5GHz (without DFS channels) or 6GHz.

config wifi-device 'radio2'
        option type 'mac80211'
        option path 'soc/11300000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
        option band '6g'
        option channel '53'
        option country 'PL'
        option cell_density '0'
        option txpower '22'
        option htmode 'HE80'

config wifi-iface 'wifinet3'
        option device 'radio2'
        option mode 'ap'
        option ssid 'Testtest'
        option encryption 'sae'
        option key 'testtest'
        option wnm_sleep_mode '1'
        option bss_transition '1'
        option network 'lan'
        option ieee80211k '1'
        option ocv '0'

All seems to work normally without DFS channels (and that will not work, due the card is a client card, not for production environment or routers dedicated one).

[Gingernut]

xback has updated hostapd in his staging tree

https://git.openwrt.org/?p=openwrt/staging/xback.git;a=commit;h=783c191ef5e19d2841fc07b437f7655130a18ba6

[nextgen-networks]

@hauke
Do you (or are you aware of others that) have plans/capacity to update hostapd-common to 2.11/latest to build the foundation for 802.11be in OpenWRT?
(why? -> https://lists.infradead.org/pipermail/hostap/2024-July/042847.html)

Thanks for your fantastic work on OpenWRT!