On Aug 5, 2013, at 11:20 AM, Adrian Chadd wrote: > .. and I bet it's not a design pattern, and this is total conjecture on my > part: > > * the original drivers weren't SMP safe; > * noone really sat down and figured out how to correctly synchronise > all of this stuff; > * people did the minimum amount of work to keep the driver from > immediately crashing, but didn't really think things through at a > larger scale. > > Almost every driver is this way Luigi. :-)
Most of the drivers in the three don't support hardware that performs well enough for this to be a problem. :) Any driver that's still around from the pre-locking days can easily saturate the lines (or the hardware) on today's (and even yesterday's hardware). All the rest have come up with different ways to cope... Warner _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
