Date: Tue, 25 Jul 2000 12:07:13 -0700 (PDT) From: Jin Guojun (DSD staff) <jin@george.lbl.gov> To: bugs@freebsd.org, ken@kdm.org Cc: freebsd-hardware@freebsd.org, jhartley@netrail.net, mjacob@feral.com Subject: Re: SysKonnect and Intel gig boards Message-ID: <200007251907.e6PJ7DN26979@portnoy.lbl.gov>
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The recent two versions of CURRENT are not very usable.
CURRENT-20000723 installation floppy is not runnable.
So, I backed to previous version CURRENT-20000722 and have a few
problems:
(1) recompiled kernel is not loadable. I re-config and recompiled several times.
(2) The default kernel (installed one) has serious kernel issue --
[109] sleepy.lbl.gov: top
top: nlist failed
[110] sleepy.lbl.gov: vmstat 1
vmstat: undefined symbols:
_cp_time _kmemstatistics _bucket _zlist
[111] sleepy.lbl.gov: uname -a
FreeBSD sleepy.lbl.gov 5.0-20000722-CURRENT FreeBSD 5.0-20000722-CURRENT #0: Sat Jul 22 12:28:30 GMT 2000 root@usw2.freebsd.org:/usr/src/sys/compile/GENERIC i386
So, there is no progress and result can be reported at this time.
I will try next version of CURRENT when it comes out.
Thanks,
-Jin
------------- original message -----------
On Mon, Jul 10, 2000 at 18:30:11 -0600, Kenneth D. Merry wrote:
> On Mon, Jul 10, 2000 at 16:56:16 -0700, Jin Guojun wrote:
> > (2) chewing significant CPU: (tested on completely idle machines)
> > 500 MHz P-III + single NetGear A620 I/O
> > takes 47% CPU time
> >
> > 750 MHz AMD K7 + single NetGear A620 I/O
> > takes less 10% CPU
> >
> > 500 MHz P-III + single SysKonnect I/O
> > takes less 5% CPU
>
> What benchmark are you running and what size packets are you using?
>
> I think I mentioned to you before that the driver is probably tuned for
> 9000 byte packets, and you might need to tweak things somewhat to get
> better performance with 1500 byte packets.
Another parameter to try is enabling transmit flow control.
The attached patch should do it for the -current driver, I think.
I haven't really tested this to see what effect it has, and it'll only work
with Tigon II boards. (The Netgear board is a Tigon II board.)
Ken
--
Kenneth Merry
ken@kdm.org
--0OAP2g/MAC+5xKAE
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="if_ti.c.flow_control.20000721"
==== //depot/FreeBSD-current/src/sys/pci/if_ti.c#27 - /a/ken/perforce/FreeBSD-cu
rrent/src/sys/pci/if_ti.c ====
*** /tmp/tmp.61653.0 Fri Jul 21 16:50:09 2000
--- /a/ken/perforce/FreeBSD-current/src/sys/pci/if_ti.c Fri Jul 21 16:49:57 2000
***************
*** 2320,2327 ****
--- 2320,2329 ----
case IFM_AUTO:
CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
TI_GLNK_FULL_DUPLEX|TI_GLNK_RX_FLOWCTL_Y|
+ TI_GLNK_TX_FLOWCTL_Y|
TI_GLNK_AUTONEGENB|TI_GLNK_ENB);
CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB|
+ TI_LNK_TX_FLOWCTL_Y|TI_LNK_RX_FLOWCTL_Y|
TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX|
TI_LNK_AUTONEGENB|TI_LNK_ENB);
TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
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