This patch fixes the aic79xx driver to properly respond to BIOS
settings.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
--
Dr. Hannes Reinecke hare@xxxxxxx
SuSE Linux Products GmbH S390 & zSeries
Maxfeldstraße 5 +49 911 74053 688
90409 Nürnberg http://www.suse.de
[PATCH 06/07] aic79xx: use BIOS settings
This patch fixes the aic79xx driver to properly respond to BIOS
settings.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/scsi/aic7xxx/aic79xx_osm.c | 35 ++++++++++++++++++++++++++++-------
1 files changed, 28 insertions(+), 7 deletions(-)
c307cfff586012f91b62f6836c08b301748ea603
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 13b7ac2..7b9dbef 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -481,6 +481,7 @@ ahd_linux_target_alloc(struct scsi_targe
{
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_targe
*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,
--
1.1.3
