Re: [PATCH] Stop pmac_zilog from abusing 8250's device numbers.

H. Peter Anvin
2007-04-04T16:09:29Z

David Lang wrote:
> On Wed, 4 Apr 2007, Alan Cox wrote:
>
>>>> You don't get machines with 64 ethernet ports on add-in cards. There
>>>> are
>>>> good reasons for the naming schemes in use.
>>>
>>> I've seen machines offering up to 48, what's the magic number that
>>> makes you
>>> need to chagne nameing schemes?
>>
>> Have you tried working with 48 ports when they are not numbered 0-47 or
>> in some logical fashion ?
>
> no, but that's what we're wanting with serial ports as well. a system
> with 50 serial ports should have them numbered 0-49, not typea0-5,
> typeb0-39, typec0-5
>

I would actually disagree. I have systems with multiport serial cards
installed, and I much prefer those to be named differently. Not only do
I not have to worry about the same problem I *constantly* have with
onboard Ethernet cards -- whoops I just installed an expansion card and
suddenly my onboard NIC is eth2! -- but the expansion serial ports tend
to be *different.*

For example, on my serial server, the Cyclades ports (ttyC*) use RJ-45
connections from an external expansion module, whereas of course the
builtin ones (ttyS*) use DB-9s.

-hpa