(e.g., polling for a half-second or more at splnet(), blocking most
interrupts, durin an ifconfig down/ifconfig up).
Appears to help for a 5704C rev A3, which is the only chip I've
ever seen that had even a mild version of the reported problem.
found empiricaly that (at least on bcm5700s) the Rx coalesce and bd
counts cannot be updated on-the-fly; attempting to do so (even at
splhigh()) causes weird behaviour.
Instead, add a softc flag to record that the desired softc values for
Rx-interrupt thresholds have changed; check that boolean in the interrupt
routine. If set, apply the new values there and clear the flag.
BGE_MISC_TIMER register definition, and more bit definitions for
HCC-mode. (I would credit individuals, but the attributions are buried
deep in my own tree.)
* don't set the NOCRC bit in the mode control register, it can cause
problems on some chips (from the broadcom errata via FreeBSD)
* implement a fallback quirktable that is searched only using the
major asic revision, so that the driver has a shot at supporting
newer versions properly without modification
* rename asicrev -> chipid, like the FreeBSD driver
- Only BCM5705M asic rev A1 was tested.
Thanks to Bill Paul (wpaul@freebsd.org) for help and support.
Approved by: Frank van der Linden <fvdl@netbsd.org>
require that the DMA receive buffers be aligned. The driver was
deliberately mis-aligning by 2 bytes, to force the layer-2/3
headers to 32-bit alignment.
Workaround: if chip is a 5701, and is in PCI-X mode, leave the DMA
buffers aligned. If the host CPU requires alignment, copy the buffer
after reception to force aligment.
Tested on an i386 in PCI-X bus, with __NO_STRICT_ALIGNMENT forced off.
Patch and comments reworked to minimize drift from
FreeBSD if_bge.c rev 1.14.
ram for using TBI, versus MII/GMII.
FreeBSD commit log and versions:
Obtain the media type from the shared memory and only use the eeprom
as a fallback.
if_bge.c: rev 1.30
if_bgereg.h: rev 1.13
Thanks to Paul Saab @mu.org.
Add cpp definitions for the DMA control register fields needed for
5703/5704 configuration on PCI-X.
Add softc copy of internal"local control" register clobbered by reset.
Written by Bill Paul for FreeBSD. This port started out with the
port done to OpenBSD by nate@openbsd.org, but ended up looking much
more like the port of the ti driver done by drochner@netbsd.org
(they are similar in structure).
thorpej