[SCSI] aic79xx: use BIOS settings

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>

diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 00d48a0..0fbd1ec 100644 (file)
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -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,