Re: [ECOS] Dual Ethernet for i386/pc

[David Brennan <eCos at brennanhome dot com>]

If anyone cares. I found that the problem was that the PCI window was 
set too small on the pc targets for dual 82559's. I changed them all 
from 0x64000 to 0x100000. (Anyone know where the 0x64000 would have come 
from? Strange number and almost all other targets use 0x100000.)

David

David Brennan wrote:

> I have just started trying to get eth1 to work on our "dual 82559" VME 
> pc.
> I ran pci1test and here is a snippet of the output.


> So it is not truly a dual 82559 pc, but according to the driver both 
> of these device ID's are supported. But I was concerned that the 82559 
> had 3 BARs and the 82801 only reported 2.
>
> I read through the if_i82559.c code and could not see any reason why 
> this should not work. So I modified i386_pc_i82559_eth_driver.cdl, 
> devs_eth_i386_pc_i82559.inl and intel_i82559_eth_drivers.cdl.
>
> On my first attempt at booting up, the code asserted:
>   Bus: 1, Dev: 6, Fn: 0, Vendor: 8086
> ... PCI vendor = 8086, device = 1209, class 20000
> Update memory base to f420b000 from bar: 0
> cyg_pci_find_matching - func is at 22ee2c
> cyg_pci_find_next: start[13000] ...
>   Bus: 1, Dev: 8, Fn: 0, Vendor: 8086
> ... PCI vendor = 8086, device = 2449, class 20000
> Init device 'i82559_eth1'
> rfd under: InitRxRing:1848
> rfd under: InitRxRing:1848
> Bad link eth1 0x003889b0 0x00000000 8 0x0022d2dc: InitRxRing:1848
> ASSERT FAIL: <1>if_i82559.c[1928]CheckRxRing() Bad Link
> [New Thread 1]
> [Switching to Thread 1]
>
> Breakpoint 1, cyg_assert_fail (psz_func=0x2c2215 "CheckRxRing",
>    psz_file=0x2c2ac0 
> "/ecos-c/cygwin/opt/ecos/ecos-cvs/ecos/packages/devs/eth/i
> ntel/i82559/current/src/if_i82559.c", linenum=1928,
>    psz_msg=0x2c220c "Bad Link")
>    at 
> /ecos-c/cygwin/opt/ecos/ecos-cvs/ecos/packages/infra/current/src/buffer.c
> xx:727

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