On Tue, Jun 27, 2023 at 11:55:15AM +0200, Stefan Sperling wrote: > On Tue, Jun 27, 2023 at 10:55:04AM +0200, Reyk Floeter wrote: > > Hi, > > > > the following diff adds the Intel Wi-Fi 6 0x51f1 device, found in a > > new Thinkpad X1 Carbon Gen 11. > > > > iwx0 at pci0 dev 20 function 3 "Intel Wi-Fi 6 AX211" rev 0x01, msix > > iwx0: hw rev 0x370, fw 77.f92b5fed.0, pnvm e4a49534, address ... > > > > I looked at the Linux code for the values for 0x51f1 and 0x7a70: > > https://github.com/torvalds/linux/commit/1c4db7613f35b248ff05b8bfb3a4580a3d11d75c > > Thanks, your diff looks correct to me. ok stsp@ >
Cool, thanks. > > This works fine with my 11ac setup and performance seems OK (around > > 200Mbps - what can I expect on OpenBSD these days?). I don't know if > > the device supports UHB channels. > > This speed matches what I see in my environment, more or less. > Apparently it goes up to 300 Mbit/s for some people, but I have never > seen it go that far up myself. > I tested it with tcpbench again and I get 210Mbps max locally when I stand right next to the AP. > We are capped to 80 MHz channels at the moment. I do have a 160MHz AP now > but would need to find spare time to make that work (as things look right > now, me finding time for this soon is rather unlikely). > > And the size we advertise for aggregates on Rx in VHT capabilities is > the smallest possible value we can advertise in 11ac (3895 octets). > Increasing this frame size limit should result in a performance boost. > We might have to increase the size of our Rx buffers accordingly, unless > the hardware handles de-aggregation into a cluster of our 4k-sized Rx > buffers, which may well be the case but I don't know for sure. > It would not be an entirely trivial diff, but likely less coding work > and more widely applicable than 160 MHz channel support. I recently switched to UniFi and I regret it a bit. I remember that my older Aruba setup was faster, even on Mac. But maybe UniFi is doing something differently and it's primarily a compatibility issue. Reyk
