Re: [PATCH 5/7] more CardServices() removals (drivers/net/wireless)
From: George Anzinger
Date: Thu Dec 25 2003 - 04:48:18 EST
Matt Mackall wrote:
On Tue, Dec 23, 2003 at 08:23:05PM -0800, Andrew Morton wrote:
Jeff Garzik <jgarzik@xxxxxxxxx> wrote:
Patch:
http://www.kernel.org/pub/linux/kernel/people/jgarzik/patchkits/2.6/2.6.0-netdrvr-exp1.patch.bz2
Thanks, I mmified that. It let me drop a shower of other stuff, which is
always welcome. Please send in new versions as-and-when needed.
I dropped all of kgdboe:
kgdb-over-ethernet.patch
kgdb-over-ethernet-fixes.patch
kgdb-CONFIG_NET_POLL_CONTROLLER.patch
kgdb-handle-stopped-NICs.patch
eepro100-poll-controller.patch
tlan-poll_controller.patch
tulip-poll_controller.patch
tg3-poll_controller.patch
8139too-poll_controller.patch
kgdb-eth-smp-fix.patch
kgdb-eth-reattach.patch
kgdb-skb_reserve-fix.patch
Matt, would you be able to take a look at resurrecting kgdboe based on the
netpoll infrastructure sometime please?
Yep, I'm working on it this very moment for my -tiny tree on top of
Jeff's latest. Should have another cut soon.
George, I'm sorely tempted to fold all of these:
kgdb-buff-too-big.patch
kgdb-warning-fix.patch
kgdb-build-fix.patch
kgdb-spinlock-fix.patch
kgdb-fix-debug-info.patch
kgdb-cpumask_t.patch
kgdb-x86_64-fixes.patch
into the base kgdb patch. Beware ;)
I did that here too, and I believe mbligh has as well.
I got side tracked by a customer with money :) The fold is fine with me, but I
would like to know what went in.
By the way, in my looking at the network link stuff, I started wondering if it
could not be done without modifying the card stuff. Here is what I see:
The poll routine just calls the interrupt handler. We only need the address of
that routine and a generic poll function to do the indirect call. That address,
once the link is up, can be found in the interrupt tables using the irq.
I haven't looked in detail at where we might find the address earlier, but I
suspect it may be possible.
There is an issue around when we can start talking to gdb. I am not sure when
the net cards are initialized, but it is after memory is available from the slab
manager. I am not sure what else needs to be up, need help here. I keep
finding myself wondering about a small memory manager to allow the network card
to come up a bit sooner (like first C code).
We would also need to arrange to have the needed network parameters at that
time, but we can do this using the CONFIG stuff, then override with command line
if that is desired.
Thoughts and hints are welcome.
--
George Anzinger george@xxxxxxxxxx
High-res-timers: http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
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