Call for testers : age(4),
Attansic/Atheros L1 gigabit ethernet controller
Pyun YongHyeon
pyunyh at gmail.com
Mon May 19 04:00:20 UTC 2008
On Wed, Apr 09, 2008 at 04:40:22PM +0400, Boris Samorodov wrote:
> On Wed, 9 Apr 2008 15:55:13 +0900 Pyun YongHyeon wrote:
> > On Tue, Apr 08, 2008 at 11:29:22PM +0400, Boris Samorodov wrote:
> > > On Thu, 13 Mar 2008 12:43:21 +0900 Pyun YongHyeon wrote:
> > > > On Mon, Mar 10, 2008 at 04:31:50PM +0900, To freebsd-current at FreeBSD.org wrote:
> > > > > On Mon, Mar 10, 2008 at 01:34:12PM +0900, To freebsd-current at FreeBSD.org wrote:
> > > > > > Hi,
> > > > > >
> > > > > > Due to high pressure from FreeBSD user community to get a working
> > > > > > driver for Attansic/Atheros L1 giagabit ethernet I had changed
> > > > > > priorities in my TODO list. I had spent several weeks to write
> > > > > > this driver and I managed to get a working driver. From my very
> > > > > > limited testing the driver seems to work as expected.
> > > > > >
> > > > > > ATM the performance is horrible so there must be mis-programmed
> > > > > > registers or incorrectly configured parameters. Due to the
> > > > > > existence several variants of L1 hardware and lack of publicly
> > > > > > available documentation I'd like to know how many variants are
> > > > > > supported by this driver. L1 gigabit ethernet controller is
> > > > > > frequently found in ASUS motherboard. Note, it seems that there are
> > > > > > other variants of hardware as known as L2(Fast ethernet) and newer
> > > > > > gigabit ethernet(AR81xx) from Atheros. These are not supported by
> > > > > > this driver and they require a seperate driver. The following
> > > > > > hardware features are supported by age(4).
> > > > > >
> > > > > > - TCP Segmentation Offload.
> > > > > > - Hardware VLAN tag insertion/stripping.
> > > > > > - TCP/UDP checksum offload.
> > > > > > - Interrupt moderation.
> > > > > > - Hardware statistics counter support.
> > > > > > - Jumbo frame support.
> > > > > > - WOL support.
> > > > > >
> > > > > > As I said, I already know poor performance issue of age(4) but I'm
> > > > > > more interested in getting a stable driver. If you're owner of L1
> > > > > > gigabit ethernet controller please give it spin and let me know
> > > > > > how it goes on your system.
> > > > > >
> > > > > > Install:
> > > > > > o Get age(4) jumbo diff at the following URL. The diff was
> > > > > > generated against HEAD but I guess it would also apply to RELENG_7
> > > > > > and 7.0-RELEASE.
> > > > > > http://people.freebsd.org/~yongari/age/age.HEAD.diff
> > > > >
> > > > > For 7.0-RELEASE, use the following URL.
> > > > > http://people.freebsd.org/~yongari/age/age.7.0R.diff
> > >
> > > > It seems that previous version have a bug in getting ethernet
> > > > hardware address. To diagnose it I've updated age(4) again and
> > > > put updated files to the same URL.
> > >
> > > > For CURRENT:
> > > > http://people.freebsd.org/~yongari/age/age.HEAD.diff
> > > > For RELENG_7/7.0-RELEASE:
> > > > http://people.freebsd.org/~yongari/age/age.7.0R.diff
> > >
> > > > > > o Patch kernel srouce and rebuild/reboot your kernel.
> > > > > > #cd /usr/src
> > > > > > #patch -p0 < /path/to/age.HEAD.diff
> > > > > >
> > > > > > Test:
> > > > > > Use age(4) for your normal network activities and report success or
> > > > > > any issues you've encountered. The driver may be chatty to ease of
> > > > > > debugging.
> > >
> > > At last I have some spare time to test your patches. I use RELENG_7.
> > > Patches applied cleanly exept one simple case with
> > > sys/modules/mii/Makefile. And now all works fine! Thank you!
> > > I dreamed about using this on-board lan adapter...
> > >
> > > Here is some info (Asus P5K m/b):
> > > -----
> > > host% dmesg | grep ^age
> > > age0: <Attansic Technology Corp, L1 Gigabit Ethernet> mem 0xfe8c0000-0xfe8fffff irq 17 at device 0.0 on pci2
> > > age0: PCI device revision : 0x00b0
> > > age0: Chip id/revision : 0x9006
> > > age0: 1280 Tx FIFO, 2364 Rx FIFO
> > > age0: MSIX count : 0
> > > age0: MSI count : 1
> > > age0: Using 1 MSI messages.
> > > age0: Read request size : 512 bytes.
> > > age0: TLP payload size : 128 bytes.
> > > age0: PCI VPD capability not found!
> > > age0: Ethernet address: 00:1d:60:XX:XX:XX
> > > age0: [FILTER]
> > > age0: interrupt moderation is 100 us.
> > > age0: interrupt moderation is 100 us.
> > > age0: link state changed to UP
>
> > atphy(4) should pick up PHY hardware.
> > Would you check whether ukphy(4) is attached to the PHY hardware?
> > Or would you show me 'devinfo -r' output?
>
> host% dmesg | grep phy
> atphy0: <Atheros F1 10/100/1000 media interface> PHY 0 on miibus0
> atphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, auto
>
> Output of 'devinfo -r' is here:
> ftp://ftp.ipt.ru/pub/download/tmp/devinfo
>
> > > host% pciconf -vl | grep -A4 age0
> > > age0 at pci0:2:0:0: class=0x020000 card=0x82261043 chip=0x10481969 rev=0xb0 hdr=0x00
> > > vendor = 'Attansic (Now owned by Atheros)'
> > > device = 'L1 Gigabit Ethernet 10/100/1000Base-T Ethernet Controller'
> > > class = network
> > > subclass = ethernet
> > >
> > > host% ifconfig age0
> > > age0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> > > options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
> > > ether 00:1d:60:XX:XX:XX
> > > inet 192.168.12.89 netmask 0xffffff00 broadcast 192.168.12.255
> > > media: Ethernet autoselect (1000baseTX <full-duplex>)
> > > status: active
> > >
> > > host% vmstat -i
> > > interrupt total rate
> > > irq1: atkbd0 76453 2
> > > irq16: nvidia0+++* 3110144 121
> > > irq17: atapci1 235335 9
> > > irq18: uhci2 ehci* 1 0
> > > irq21: uhci1 109423 4
> > > irq22: pcm0 16 0
> > > cpu0: timer 51011849 1999
> > > irq256: age0 72478 2
> > > cpu3: timer 49962753 1958
> > > cpu1: timer 51002577 1999
> > > cpu2: timer 49962704 1958
> > > Total 205543733 8058
> > > -----
> > >
>
> > Apart form its poor performance, I think age(4) works well for
> > normal desktop usage pattern. Three issues not resolved yet are
>
> > 1. Poor performance. No idea how to improve performance without
> > documentation.
>
> > 2. For L1 hardwares that have SPI flash interface, age(4) relys on
> > reading station address register which is supposed to be
> > initialized during hardware reset. This may not work under
> > certain circumtances. Linux seems to have SPI flash interface
> > code from vendor with lots of magic code. Because SPI flash
> > memory device of different vendors vary in their instruction
> > codes for read ID instruction, it's very hard to get instruction
> > codes without detailed information for the flash memory device
> > used on ethernet controller. Also I guess this SPI flash memory
> > device should be maintained in other parts of kernel, not in
> > each driver.
>
> > 3. Sometimes chip id/revision returns 0xFFFF and hardware does not
> > work at all. I guess this could be related with controller/PHY
> > initialziation. Plugging in network cable before system boot
> > seems to fix the issue.
>
> > The third issue should be resolved before committing age(4) to
> > HEAD. Since I can't reprocude it no ETA for the third issue, sorry.
>
> Neither can I.
>
FYI: I committed age(4) to HEAD.
--
Regards,
Pyun YongHyeon
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