CVS commit: src/sys/dev/pci

["Manuel Bouyer" <bouyer%netbsd.org@localhost>]

Module Name:    src
Committed By:   bouyer
Date:           Tue Oct 25 21:47:38 UTC 2011

Modified Files:
        src/sys/dev/pci: if_age.c

Log Message:
age_init() is called from age_watchdog() which is interrupt context, we
can't sleep here or we get a DIAGNOSTIC panic when age_watchdog() fires.
More correct bus_dma(9) usage in age_encap()
Introduce a age_shutdown() to be called by pmf(9) at shutdown time,
to stop the DMA engine. My system would't properly reboot without this.
Be consistent in WAIT/NOWAIT use in init routines
Use BUS_DMA_COHERENT where appropriate
Rework the interrupt routine a bit, and ACK but do not disable interrupts
here. There seems to be a race where interrupts would not be properly
reenabled after this, leading do watchdog timeouts.

With these changes, the on-board age(4) on ftp.fr.netbsd.org seems to
be finally working properly.


To generate a diff of this commit:
cvs rdiff -u -r1.39 -r1.40 src/sys/dev/pci/if_age.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.