Enable 16-byte CDBs for aic7xxx/aix79xx

The patch enables support for 16-byte CDBs in aic7xxx and aic79xx.
aic7xxx can actually support up to 32-byte CDBs, should they ever see
the light of day.

Signed-off-by: Hannes Reinecke <hare@suse.de>

diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 286ab83..8502085 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1089,6 +1089,7 @@ ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *templa
 	host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8;
 	host->max_lun = AHD_NUM_LUNS;
 	host->max_channel = 0;
+	host->max_cmd_len = MAX_CDB_LEN;
 	host->sg_tablesize = AHD_NSEG;
 	ahd_lock(ahd, &s);
 	ahd_set_unit(ahd, ahd_linux_unit++);
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 1803ab6..a6b3071 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1047,6 +1047,7 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa
 	host->max_id = (ahc->features & AHC_WIDE) ? 16 : 8;
 	host->max_lun = AHC_NUM_LUNS;
 	host->max_channel = (ahc->features & AHC_TWIN) ? 1 : 0;
+	host->max_cmd_len = 32;
 	host->sg_tablesize = AHC_NSEG;
 	ahc_lock(ahc, &s);
 	ahc_set_unit(ahc, ahc_linux_unit++);