[U-Boot] ping timeout

[Wolfgang Denk]

Dear "David Collier",

In message <memo.20091023110946.2092M at postmaster+dexdyne.com.cix.co.uk> you wrote:
>
> But there's a difference between "is the server there" and "please TFTP
> from it - and the timeouts for one are not the same as the timeout for
> another.

But with a ping you do NOT check if the (TFTP) server is there. All
you check if the host is up and running. Eventually there is no TFTP
server running on it.

> If the server is present, I'm happy to use relaxed timeouts for the
> actual transfer.

Then test with a short-timeout TFTP request, and if this fails
becoause of other reasons than "server not responding" then retry with
longer timeouts. Feel free to define your own policy.

> But I'd like a quicker way of just checking whether I'm on the
> "production test network" or in a user site in the field.

I don't see why that would be not possible or even difficult with the
current code.

Best regards,

Wolfgang Denk

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