I got my hands on an atheros based AWLC4030 card and tested it with -current kernel on i386. It felt really good to pop this card in and see ath(4) immediately recognize it. Thanks Reyk and everybody else who contributed!
The card seem to be working pretty well in 802.11b based network (both LEDs blink all the time, but this does not seem to matter). Unscientific performance benchmark using ttcp showed that AWLC4030 is faster than two wi based cards I had around. I supposed my house is a poor test lab given 6 APs that I routinely see here. Some observations. With a snapshot kernel I still see some diagnostics when I eject the card: ath0: rx FIFO overrun; resetting ar5k_ar5212_nic_wakeup: failed to resume the AR5212 (again) ath0: ath_reset: unable to reset hardware; hal status 3494734280 ath0 detached gpio does not attach: gpio at ath0 not configured 3.7 kernel panicked in *_detach upon eject. I could not reproduce this behavior with the snapshot kernel, so I did not pursue it any further. ifconfig -m and dmesg follow. ath0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500 address: 00:0f:a3:xx:xx:xx ieee80211: nwid my_ap chan 1 bssid 00:06:25:xx:xx:xx nwkey <not displayed> groups: all media: IEEE802.11 autoselect (DS11 mode 11b) status: active supported media: media autoselect media autoselect mediaopt ibss media autoselect mediaopt hostap media autoselect mediaopt monitor media autoselect mode 11b media autoselect mode 11b mediaopt ibss media autoselect mode 11b mediaopt hostap media autoselect mode 11b mediaopt monitor media DS1 mode 11b media DS1 mode 11b mediaopt ibss media DS1 mode 11b mediaopt hostap media DS1 mode 11b mediaopt monitor media DS2 mode 11b media DS2 mode 11b mediaopt ibss media DS2 mode 11b mediaopt hostap media DS2 mode 11b mediaopt monitor media DS5 mode 11b media DS5 mode 11b mediaopt ibss media DS5 mode 11b mediaopt hostap media DS5 mode 11b mediaopt monitor media DS11 mode 11b media DS11 mode 11b mediaopt ibss media DS11 mode 11b mediaopt hostap media DS11 mode 11b mediaopt monitor media autoselect mode 11g media autoselect mode 11g mediaopt ibss media autoselect mode 11g mediaopt hostap media autoselect mode 11g mediaopt monitor media DS1 mode 11g media DS1 mode 11g mediaopt ibss media DS1 mode 11g mediaopt hostap media DS1 mode 11g mediaopt monitor media DS2 mode 11g media DS2 mode 11g mediaopt ibss media DS2 mode 11g mediaopt hostap media DS2 mode 11g mediaopt monitor media DS5 mode 11g media DS5 mode 11g mediaopt ibss media DS5 mode 11g mediaopt hostap media DS5 mode 11g mediaopt monitor media DS11 mode 11g media DS11 mode 11g mediaopt ibss media DS11 mode 11g mediaopt hostap media DS11 mode 11g mediaopt monitor media OFDM6 mode 11g media OFDM6 mode 11g mediaopt ibss media OFDM6 mode 11g mediaopt hostap media OFDM6 mode 11g mediaopt monitor media OFDM9 mode 11g media OFDM9 mode 11g mediaopt ibss media OFDM9 mode 11g mediaopt hostap media OFDM9 mode 11g mediaopt monitor media OFDM12 mode 11g media OFDM12 mode 11g mediaopt ibss media OFDM12 mode 11g mediaopt hostap media OFDM12 mode 11g mediaopt monitor media OFDM18 mode 11g media OFDM18 mode 11g mediaopt ibss media OFDM18 mode 11g mediaopt hostap media OFDM18 mode 11g mediaopt monitor media OFDM24 mode 11g media OFDM24 mode 11g mediaopt ibss media OFDM24 mode 11g mediaopt hostap media OFDM24 mode 11g mediaopt monitor media OFDM36 mode 11g media OFDM36 mode 11g mediaopt ibss media OFDM36 mode 11g mediaopt hostap media OFDM36 mode 11g mediaopt monitor media OFDM48 mode 11g media OFDM48 mode 11g mediaopt ibss media OFDM48 mode 11g mediaopt hostap media OFDM48 mode 11g mediaopt monitor media OFDM54 mode 11g media OFDM54 mode 11g mediaopt ibss media OFDM54 mode 11g mediaopt hostap media OFDM54 mode 11g mediaopt monitor media DS1 media DS1 mediaopt ibss media DS1 mediaopt hostap media DS1 mediaopt monitor media DS2 media DS2 mediaopt ibss media DS2 mediaopt hostap media DS2 mediaopt monitor media DS5 media DS5 mediaopt ibss media DS5 mediaopt hostap media DS5 mediaopt monitor media DS11 media DS11 mediaopt ibss media DS11 mediaopt hostap media DS11 mediaopt monitor media OFDM6 media OFDM6 mediaopt ibss media OFDM6 mediaopt hostap media OFDM6 mediaopt monitor media OFDM9 media OFDM9 mediaopt ibss media OFDM9 mediaopt hostap media OFDM9 mediaopt monitor media OFDM12 media OFDM12 mediaopt ibss media OFDM12 mediaopt hostap media OFDM12 mediaopt monitor media OFDM18 media OFDM18 mediaopt ibss media OFDM18 mediaopt hostap media OFDM18 mediaopt monitor media OFDM24 media OFDM24 mediaopt ibss media OFDM24 mediaopt hostap media OFDM24 mediaopt monitor media OFDM36 media OFDM36 mediaopt ibss media OFDM36 mediaopt hostap media OFDM36 mediaopt monitor media OFDM48 media OFDM48 mediaopt ibss media OFDM48 mediaopt hostap media OFDM48 mediaopt monitor media OFDM54 media OFDM54 mediaopt ibss media OFDM54 mediaopt hostap media OFDM54 mediaopt monitor inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255 inet6 fe80::20f:a3xx:xxxx:xxxx%ath0 prefixlen 64 scopeid 0x7 OpenBSD 3.7-current (GENERIC) #134: Sun May 22 01:41:01 MDT 2005 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class) 697 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE real mem = 267952128 (261672K) avail mem = 237707264 (232136K) using 3296 buffers containing 13500416 bytes (13184K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+(ff) BIOS, date 11/30/99, BIOS32 rev. 0 @ 0xf0000 apm0 at bios0: Power Management spec V1.2 (BIOS managing devices) apm0: battery life expectancy 66% apm0: AC on, battery charge high, charging pcibios0 at bios0: rev 2.1 @ 0xf0000/0x1200 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf4a30/304 (17 entries) pcibios0: PCI Exclusive IRQs: 5 10 11 pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371AB PIIX4 ISA" rev 0x00) pcibios0: PCI bus #3 is the last bus bios0: ROM list: 0xc0000/0x10000 0xd0000/0x1800 cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x03 ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "ATI Mobility 1" rev 0x64 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) cbb0 at pci0 dev 4 function 0 "Texas Instruments PCI1450 CardBus" rev 0x03: irq 11 cbb1 at pci0 dev 4 function 1 "Texas Instruments PCI1450 CardBus" rev 0x03: irq 11 pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02 pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility wd0 at pciide0 channel 0 drive 0: <TOSHIBA MK1214GAP> wd0: 16-sector PIO, LBA, 11513MB, 23579136 sectors atapiscsi0 at pciide0 channel 0 drive 1 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <Compaq, DVD-ROM DV28EB, D.3K> SCSI0 5/cdrom removable wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 cd0(pciide0:0:1): using PIO mode 4, DMA mode 2 pciide0: channel 1 disabled (no drives) uhci0 at pci0 dev 7 function 2 "Intel 82371AB USB" rev 0x01: irq 11 usb0 at uhci0: USB revision 1.0 uhub0 at usb0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered "Intel 82371AB Power Mgmt" rev 0x03 at pci0 dev 7 function 3 not configured maestro0 at pci0 dev 8 function 0 "ESS Maestro 2E" rev 0x10: irq 11 ac97: codec id 0x83847609 (SigmaTel STAC9721/23) ac97: codec features 18 bit DAC, 18 bit ADC, SigmaTel 3D audio0 at maestro0 fxp0 at pci0 dev 9 function 0 "Intel 82557" rev 0x09, i82559S: irq 11, address 00:d0:59:11:37:1a inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4 "AT&T/Lucent LTMODEM" rev 0x00 at pci0 dev 9 function 1 not configured cardslot0 at cbb0 slot 0 flags 0 cardbus0 at cardslot0: bus 2 device 0 cacheline 0x8, lattimer 0x20 pcmcia0 at cardslot0 cardslot1 at cbb1 slot 1 flags 0 cardbus1 at cardslot1: bus 3 device 0 cacheline 0x8, lattimer 0x20 pcmcia1 at cardslot1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 sysbeep0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pccom2 at isa0 port 0x3e8/8 irq 5: ns16550a, 16 byte fifo fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 biomask ef4d netmask ef4d ttymask ffcf pctr: 686-class user-level performance counters enabled mtrr: Pentium Pro MTRR support ath0 at cardbus1 dev 0 function 0 "Atheros Communications, Inc., AR5001-0000-0000, Wireless LAN Reference Card": irq 11 ath0: AR5212 5.9 phy 4.3 rf2112 4.6, FCC1A, address 00:0f:a3:xx:xx:xx gpio at ath0 not configured dkcsum: wd0 matched BIOS disk 80 root on wd0a rootdev=0x0 rrootdev=0x300 rawdev=0x302 ath0: rx FIFO overrun; resetting ar5k_ar5212_nic_wakeup: failed to resume the AR5212 (again) ath0: ath_reset: unable to reset hardware; hal status 3494734280 ath0 detached ath0 at cardbus1 dev 0 function 0 "Atheros Communications, Inc., AR5001-0000-0000, Wireless LAN Reference Card": irq 11 ath0: AR5212 5.9 phy 4.3 rf2112 4.6, FCC1A, address 00:0f:a3:xx:xx:xx gpio at ath0 not configured