The patch enables support for 16-bit CDBs in aic7xxx and aic79xx.
aic7xxx can actually support up to 32-bit CDBs, should they ever see
the light of day.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/scsi/aic7xxx/aic79xx.h | 2 ++
drivers/scsi/aic7xxx/aic79xx_osm.c | 1 +
drivers/scsi/aic7xxx/aic7xxx_osm.c | 1 +
3 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index ce638aa..883f26a 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -413,6 +413,8 @@ struct target_status {
* the sense buffer address in the SCB. This allows
* us to retrieve sense information without interrupting
* the host in packetized mode.
+ * The current firmware relies on a CDB len of 16, so
+ * don't change it unless you know what you're doing.
*/
typedef uint32_t sense_addr_t;
#define MAX_CDB_LEN 16
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 2d02040..f4e12e1 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1090,6 +1090,7 @@ 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 = 16;
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 390b0fc..d488764 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1048,6 +1048,7 @@ 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++);
--
1.5.2.4
-
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