[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>

1 files changed, 28 insertions, 7 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 00d48a0fb7e1..0fbd1ec58340 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_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,