I didn't get your answer, I'm just looking for Wi-Fi 6 options that supports OpenWrt.
Nothing high end is supported yet. They trolled us by accidentally puting RAXE500 on the new changelog then removed it 
It's probably 1.5 years away before we see Ath11k mature and supported in an OpenWrt 23.x release running Linux kernel 5.15.
What you could do to beat that right now is run a $250 three device setup which is faster anyway:
- NanoPi R4S, ($100) install OpenWrt (master snapshot, use for routing, nftables firewall, enough CPU speed for gigabit SQM, irqbalance, adblock, samba, usb3, etc.)
- 5-port gigabit switch with a couple PoE ports ($40)
- WiFi 6 access point like the U6-Lite ($100)
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Thank you, NanoPi R4S do looks like an interesting device. I might buy one.
Regarding the acess points I'll stay with WiFi 5 for some time more, until I see more devices supported by OpenWRT, the Xiaomi AX3200 would be interesting and seems to be on verge of receiving snapshot support.
Ubiquiti products are really expensive in my country, a Ubiquiti 6 Lite costs more than 2 times the price of a Xiaomi AX3200, and I use 3 access points at my house (really big house).
Easy solution: sell house, buy more wifi 
I've got a similar setup, an R4S as main router, feeding into an old Archer C7v2 with wifi disabled functioning as a managed switch (for vlans), feeding into a Totolink X5000R on the other side of the house. The Totolink still has some issues in LUCI but functions well, and you can get them cheap from Ali.
X5000R is a mt7621 platform, I think your WiFi speeds should be restrained by the older platform (assuming your ISP provides you 500Mbps+ speeds).
I don't use it for routing, that's what the R4S is for. The X5000R is just a dumb AP. The wifi hardware is MT7915.
What speeds do you get in iperf?
The firmware is limited to VHT80 right now, but I can get about 600 Mbit/s via my phone, which makes sense as the 1x1 theoretical max is 833 if I'm not mistaken?
If you need faster then you should be looking at 6 or 60Ghz and very likely closed source.
For WiFi 6 80MHz (1024QAM) each stream should support 600.5Mbps.
For WiFi 5 80MHz (256QAM) each stream should support 433.3Mbps.
Between 2x wirelessly connected RT3200's on separate floors in my house:
root@OpenWrt:~# iperf3 -c 192.168.1.2
Connecting to host 192.168.1.2, port 5201
[ 5] local 192.168.1.1 port 45890 connected to 192.168.1.2 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 91.2 MBytes 765 Mbits/sec 0 1.95 MBytes
[ 5] 1.00-2.00 sec 93.4 MBytes 781 Mbits/sec 0 1.95 MBytes
[ 5] 2.00-3.00 sec 93.8 MBytes 787 Mbits/sec 0 1.95 MBytes
[ 5] 3.00-4.00 sec 89.8 MBytes 754 Mbits/sec 0 1.95 MBytes
[ 5] 4.00-5.00 sec 88.6 MBytes 743 Mbits/sec 0 1.95 MBytes
[ 5] 5.00-6.00 sec 91.0 MBytes 761 Mbits/sec 0 1.95 MBytes
[ 5] 6.00-7.02 sec 91.1 MBytes 755 Mbits/sec 0 1.95 MBytes
[ 5] 7.02-8.00 sec 85.0 MBytes 724 Mbits/sec 0 1.95 MBytes
[ 5] 8.00-9.00 sec 93.6 MBytes 785 Mbits/sec 0 1.95 MBytes
[ 5] 9.00-10.00 sec 86.0 MBytes 721 Mbits/sec 0 1.95 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 904 MBytes 758 Mbits/sec 0 sender
[ 5] 0.00-10.01 sec 902 MBytes 756 Mbits/sec receiver
iperf Done.
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That is a good result, how many 80MHz streams are these devices using?
I think the RT3200 can support up to 4 streams.
Yes, the RT3200 is 4T4R. Be aware that only the 5 GHz radio (MT7915) does WiFi 6, but the 2.4 GHz is still WiFi 4 only (ie. 802.11bgn), but also 4T4R (it probably could do out-of-spec WiFi 5 VHT rates on 2.4 GHz, but almost no clients support that).
Even if the hardware supports, it must be a proprietary implementation as VHT on 2.4GHz is not in compliance with the IEEE 802.11 standard.
That is why few to none clients will support it.
https://www.cwnp.com/forums/posts?postNum=307375
There is an old pull request for it. I can see this mostly benefiting Mesh networks with 2.4GHz backhaul.
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Mods for ZBTLINK Z100-a with 32M SPI Flash
You can build after with samba4
would it be possible to get openwrt going on the BCM6755 sans wifi
really don't care about the wifi capability at all
the stock firmware of the archer AX1800 V1.20 is based on Openwrt 12 Attitude adjustment
I have it extracted and dumped if anybody wants it shoot me a pm
That chip is so new I doubt you will find much mainline Linux kernel support for it as of yet.
…and given the wireless situation, there probably won't be many who'd buy (let alone work on porting for-) this device either.
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blarg there is nothing affordable in the consumer hardware class that isn't A: underpowered or B: running mips (yuk)
Are you programming in assembly? Developing compiler backends? Maintaining a separate CI infrastructure just for OpenWRT on MIPS?
If not, why do you care what the ISA is as long as it offers the performance you need?
thats the thing mips is horrendously slow
recursive dns perf on mips sucks