On Wed, Jun 14, 2000 at 09:03:24AM -0700, Les Biffle wrote:
> We're having problems with the Intel EtherExpress 10/100 NICs in our
> product platform. We suspect unfavorable interaction between the 82558
> and 82559 Intel parts and our motherboard chipset. Here are some
> specifics:
>
> We're using 3.4-STABLE, with the "latest" fxp driver code:
>
> $FreeBSD: src/sys/pci/if_fxp.c,v 1.59.2.7 2000/04/01 19:04:21 dg Exp $
> $FreeBSD: src/sys/pci/if_fxpreg.h,v 1.13.2.3 1999/12/06 20:11:53 peter Exp $
> $FreeBSD: src/sys/pci/if_fxpvar.h,v 1.6.2.2 2000/04/01 19:04:22 dg Exp $
>
> The platform is a small PC designed for the point of sale folks, and uses
> the VIA Apollo MVP4 chipset. From dmesg:
>
> chip0: <Host to PCI bridge (vendor=1106 device=0501)> rev 0x02 on pci0.0.0
> chip1: <PCI to PCI bridge (vendor=1106 device=8501)> rev 0x00 on pci0.1.0
> chip2: <PCI to ISA bridge (vendor=1106 device=0686)> rev 0x14 on pci0.7.0
> chip3: <Host to PCI bridge (vendor=1106 device=3057)> rev 0x10 on pci0.7.4
>
> We use an AMD K6-2 at 350 or 450 Mhz, 32MB of RAM and boot from Compact Flash.
>
> The two PCI slots are on a riser card. On the riser card is a RealTEK
> 8139 10/100 interface which works quite well:
>
> rl0: <RealTek 8139 10/100BaseTX> rev 0x10 int a irq 12 on pci0.13.0
>
> We can install other RealTEK-based NICs in either or both riser card PCI
> slots, and they work well, as do WAN cards. The problem comes when we
> install a NIC based on the Intel 82558 or 82559 parts.
>
> When the NIC is in the "top" slot on the riser (pci0.1.19), the kernel
> panics in if_fxp.c at fxp_add_rfabuf + 0xc4. The backtrace says
> fxp_add_rfabuf was called from fxp_intr.
>
> With the NIC in the "bottom" slot (pci0.1.17), there is no panic, but the
> card gets choked up and seems not to listen reliably. For example, it
> will hear an ARP reply if it sent the ARP request, but will ignore an
> ARP request inbound. My sniffer shows the packets on the link, but there
> is no indication in a "netstat -i" that the NIC saw them.
>
Excuse me if I have missed something obviouse ( I havn't had a lot to do with
PC hardware recently.) Is your 'riser' a customer part of the board or
something that just plugs into an existing PCI slot. If the later I
**ASSUME** (and may be wrong) that it is a PCI to PCI bridge itself.
Leading to the questions does the fxp work in the PCI slot without the riser?
and
Are others successfully using that PCI-PCI bridge with an fxp
--
GeoffB
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