From: Tomi Manninen OH2BNS (qbjrj@3denter.com)
Date: Thu Jan 04 2001 - 16:01:44 EET
On Tue, 2 Jan 2001, John Ackermann wrote:
> The second problem relates to the dmascc driver which is running an
> Ottawa PI card. In ifconfig's output I'm seeing a lot of RX frame
> errors -- about 1/3 of the total number of RX packets shown. What does
> the "frame" error signify? Could it be a sign of either TXD or TXtail
> being too short on one of the stations being heard, such that the flags
> are being cut off? I didn't notice this error with the old
> motherboard, but that may just be a coincidence.
I have tried to keep quiet and wait for some who really knows come up with
an answer but seems it isn't going to happen... :)
Anyway I seem to remember quite a few reports from people with PI2
cards having problems with the newer motherboards. I don't remember the
symptoms but it was some sort of errors on rx or tx (helpful, eh?).
Someone even came up with a possible explanation that had something to do
with the Z8530 DMA interface not being quite in spec for direct connection
to the ISA bus. It all worked just fine with the way ISA bus was
implemented before the age of VLB and PCI but the PCI-to-ISA bridges
changed all that. They work within the ISA timing spec but in way that
ruins communication with the Z8530 chip. Or something like that.
All I have is just a vague recollection of discussions on some mailing
list long ago and I don't remember the details nor do I have any first
hand experience (I have some PI2 cards but they mainly just gather
dust...). Thought I'd mention anyway...
-- Tomi Manninen Internet: nmmwxmd.dhfreewck@mail.dy.fi OH2BNS AX.25: cmovr@jhu.edu KP20ME04 Amprnet: fkwg.tueb@republica.dk- To unsubscribe from this list: send the line "unsubscribe linux-hams" in the body of a message to terhi.victor@logonet.com
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