diff options
| author | ps <ps@FreeBSD.org> | 2004-05-17 17:27:38 +0000 |
|---|---|---|
| committer | ps <ps@FreeBSD.org> | 2004-05-17 17:27:38 +0000 |
| commit | f0f9792ad4bdeea979da6479eee800628b092951 (patch) | |
| tree | 27f668971903c5891432ed4445e17a568b301c6c /sys/dev/ciss/ciss.c | |
| parent | 858adca10f16b52166830f034daf42bbdb337d6a (diff) | |
| download | FreeBSD-src-f0f9792ad4bdeea979da6479eee800628b092951.zip FreeBSD-src-f0f9792ad4bdeea979da6479eee800628b092951.tar.gz | |
Turn SCSI pre-fetch ON. This is mainly for 64XX and 64X based
controllers and allows the controller to prefetch 1-2k on certain
PCI memory reads to the host. The spec says this should only be
used for IA32 based systems.
Informed of feature by: John Cagle <first.last@hp.com>
Diffstat (limited to 'sys/dev/ciss/ciss.c')
| -rw-r--r-- | sys/dev/ciss/ciss.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/dev/ciss/ciss.c b/sys/dev/ciss/ciss.c index c11c28f..67edd2a 100644 --- a/sys/dev/ciss/ciss.c +++ b/sys/dev/ciss/ciss.c @@ -569,6 +569,10 @@ ciss_init_pci(struct ciss_softc *sc) sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; +#ifdef __i386__ + sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; +#endif + if (ciss_update_config(sc)) { ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); |
