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Re: Re: not able to bring link up !!
"mohanlal jangir" <mohanlaljangir@hotmail.com> writes:
> > You just have to put a bunch of diag_printf() calls into the
> > initialization code. Comparing the values that these give with the
> > documentation may give you a clue as to what is happening.
> Hi Nick,
> There is a little improvement. I compiled the eCos source without -O2
> option and also set back HAL_PCI_ALLOC_BASE_MEMORY to 0. Thing are going
> better. I am able to see BAR[0] = 0x00020000 even after setting
> HAL_PCI_ALLOC_BASE_MEMORY to 0. And also link is up. This is confirmed by
> msg "i82559_start 0 flg 47 Link = Up, 100 Mbps, Full Duplex". Although I am
> not able to send any packet out but I was able to receive some packets :-).
> Mostly received packets were broadcasted ARP packets and _ONE_ packet was
> multicast, unicast packets are not received at all. But receiving of packets
> is very random. Sometimes it receives and then stops receiving. Also when I
> run the image without any breakpoint, I receive messages like "config update
> failed" and "muliticase setup failed", but if I single step through these
> functions, these functions work perfectly. There is no hang as timer in my
> code is timing out correctly and corrosponding timer handler is called on
> every time out.
> Any clues, where should I look now?
That taking out -O2 changed things is weird. Maybe there are timing
problems on the PCI bus. Or maybe there are caching issues.
The failure to receive unicast messages looks like the MAC address has
not been set correctly.
As for the other stuff, I cannot really suggest anything. The i82559
has various counters in it that may give you a clue to whether certain
sorts of error are happening.
--
Nick Garnett eCos Kernel Architect
http://www.ecoscentric.com The eCos and RedBoot experts
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