Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...

[linux-2.6] / drivers / scsi / aic7xxx / aic7xxx_osm.c

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 1803ab6fc21c49ac0ad158e42567b04651d52a82..390b0fc991c5930dcb8e42057f5aa1ba9ec6644a 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -335,8 +335,8 @@ static uint32_t aic7xxx_periodic_otag;
  */
 static char *aic7xxx = NULL;
 
-MODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>");
-MODULE_DESCRIPTION("Adaptec Aic77XX/78XX SCSI Host Bus Adapter driver");
+MODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>");
+MODULE_DESCRIPTION("Adaptec AIC77XX/78XX SCSI Host Bus Adapter driver");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(AIC7XXX_DRIVER_VERSION);
 module_param(aic7xxx, charp, 0444);
@@ -747,6 +747,7 @@ struct scsi_host_template aic7xxx_driver_template = {
        .max_sectors            = 8192,
        .cmd_per_lun            = 2,
        .use_clustering         = ENABLE_CLUSTERING,
+       .use_sg_chaining        = ENABLE_SG_CHAINING,
        .slave_alloc            = ahc_linux_slave_alloc,
        .slave_configure        = ahc_linux_slave_configure,
        .target_alloc           = ahc_linux_target_alloc,
@@ -2317,8 +2318,13 @@ static void ahc_linux_set_period(struct scsi_target *starget, int period)
 
        if (period < 9)
                period = 9;     /* 12.5ns is our minimum */
-       if (period == 9)
-               ppr_options |= MSG_EXT_PPR_DT_REQ;
+       if (period == 9) {
+               if (spi_max_width(starget))
+                       ppr_options |= MSG_EXT_PPR_DT_REQ;
+               else
+                       /* need wide for DT and need DT for 12.5 ns */
+                       period = 10;
+       }
 
        ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                            starget->channel + 'A', ROLE_INITIATOR);
@@ -2381,7 +2387,7 @@ static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
        unsigned long flags;
        struct ahc_syncrate *syncrate;
 
-       if (dt) {
+       if (dt && spi_max_width(starget)) {
                ppr_options |= MSG_EXT_PPR_DT_REQ;
                if (!width)
                        ahc_linux_set_width(starget, 1);