* Software routing in 8275
@ 2004-12-09 15:43 Jostein Pettersen
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From: Jostein Pettersen @ 2004-12-09 15:43 UTC (permalink / raw)
To: linuxppc-embedded
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Hi,
We consider using a MPC8275 running Embedded Linux to route two 100MB/s
Ethernet links in software. The traffic will mostly be incoming on the two
FE links and outgoing on the PCI bus, which is connected to a gigabit
routing chip (can't connect the two FE links to the routing chip directly,
since it only has GE ports).
My question is:
Will the MPC8275 be able to handle 2xFE full speed?
Doing the calculations about bus speeds etc, it looks ok, but I know Linux
does not like high interrupt rates. Is there a rule of thumb about what's
the maximum recommended interrupt rate at a given clock speed?
Hope to hear from you,
Regards
Jostein Pettersen
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2004-12-09 15:43 Software routing in 8275 Jostein Pettersen
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