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[SCSI] aic79xx: use BIOS settings

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This patch fixes the aic79xx driver to properly respond to BIOS
settings.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Hannes Reinecke 2006-03-08 12:59:35 +01:00 committed by James Bottomley
parent 9e691dfba5
commit 986a25f96a
1 changed files with 28 additions and 7 deletions
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35
drivers/scsi/aic7xxx/aic79xx_osm.c
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@ -481,6 +481,7 @@ ahd_linux_target_alloc(struct scsi_target *starget)
{
struct ahd_softc *ahd =
*((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
struct seeprom_config *sc = ahd->seep_config;
unsigned long flags;
struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
struct ahd_linux_target *targ = scsi_transport_target_data(starget);
@ -496,18 +497,38 @@ ahd_linux_target_alloc(struct scsi_target *starget)
*ahd_targp = starget;
memset(targ, 0, sizeof(*targ));
if (sc) {
int flags = sc->device_flags[starget->id];
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
starget->id, &tstate);
if ((flags & CFPACKETIZED) == 0) {
/* Do not negotiate packetized transfers */
spi_rd_strm(starget) = 0;
spi_pcomp_en(starget) = 0;
spi_rti(starget) = 0;
spi_wr_flow(starget) = 0;
spi_hold_mcs(starget) = 0;
} else {
if ((ahd->features & AHD_RTI) == 0)
spi_rti(starget) = 0;
}
if ((flags & CFQAS) == 0)
spi_qas(starget) = 0;
/* Transinfo values have been set to BIOS settings */
spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
spi_min_period(starget) = tinfo->user.period;
spi_max_offset(starget) = tinfo->user.offset;
}
tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
starget->id, &tstate);
ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id,
CAM_LUN_WILDCARD, channel,
ROLE_INITIATOR);
spi_min_period(starget) = AHD_SYNCRATE_MAX; /* We can do U320 */
if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0)
spi_max_offset(starget) = MAX_OFFSET_PACED_BUG;
else
spi_max_offset(starget) = MAX_OFFSET_PACED;
spi_max_width(starget) = ahd->features & AHD_WIDE;
ahd_set_syncrate(ahd, &devinfo, 0, 0, 0,
AHD_TRANS_GOAL, /*paused*/FALSE);
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,