Hi James, On 3/15/21 6:46 PM, James Prestwood wrote: > Maybe a simpler question: What brcmfmac cards *do* support SAE offload? First of all, SAE offload support is technically a function of both firmware AND chip, but the chip only matters in this equation because some chips don't have enough memory to support the SAE offload functionality of the firmware. If a firmware build string (strings fwname.bin | grep Version) contains sae, idsup, and idauth, then it really should advertise that capability back to the driver. The vendor will not build a firmware with the sae capability if the target chipset doesn't have enough memory to support it. > So far I have tried: > > BCM4345 (raspberry pi 3 B+) Quick note: according to the datasheet[1, p.18], the RPi 3B+ has a CYW43455 (note the extra 5). Easily confused with the BCM4345, but actually a completely different chip. Please double check that you are using the correct firmware, because I can see that the version string you quoted in your original email: >> [ 7.616186] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Mar 23 2020 02:19:54 version 7.45.206 (r725000 CY) FWID 01-88ee44ea seems not to agree with the version string in the latest Cypress FMAC release you linked in the same email: .../5.4.18-2020_0925/firmware $ strings cyfmac43455-sdio.bin | grep Version 43455c0-roml/43455_sdio-pno-aoe-pktfilter-pktctx-wfds-mfp-dfsradar-wowlpf-idsup-idauth-noclminc-clm_min-obss-obssdump-swdiv-gtkoe-roamprof-txbf-ve-sae-dpp-sr-okc-bpd Version: 7.45.221 (3a6d3a0 CY) CRC: 8f977704 Date: Fri 2020-09-18 02:30:48 PDT Ucode Ver: 1043.2156 FWID 01-bbd9282b Also make sure that the target firmware is appropriately named: - the mainline driver expects the firmware to be at /lib/firmware/brcm/brcmfmac43455-sdio.bin - the Cypress backports driver expects the firmware to be at /lib/firmware/cypress/cyfmac43455-sdio.bin If you use the latest firmware release then it should advertise SAE support. But I don't have the appropriate hardware to check for myself, so the emphasis is on 'should'. [1] https://www.raspberrypi.org/documentation/hardware/computemodule/datasheets/rpi_DATA_CM3plus_1p0.pdf > BCM43602 > BCM43242 > > The last two are quite old (fw dated 2013/2015) so I wouldn't expect > those to work. According to the documentation the BCM4345 should > support SAE offload, but me and several others have tried checking the > extended features and it is not enabled. Right, those chips are far too old to support SAE offload due to memory limitations. Other Cypress chipsets which should support SAE offload: CYW43455 (mentioned above) CYW4373 CYW43012 CYW54591 CYW4343W CYW4354 (parent of CYW43455) CYW4356 Firmwares from the aforementioned Cypress FMAC release which should support SAE offload: cyfmac43012-sdio.bin cyfmac43430-sdio.bin cyfmac43455-sdio.bin cyfmac4373-sdio.bin cyfmac4373-usb.bin cyfmac54591-pcie.bin Kind regards, Alvin
