1 files changed, 37 insertions, 34 deletions

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index d978e4a3e973..0ed9ccc3091e 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -3346,6 +3346,32 @@ ahc_platform_dump_card_state(struct ahc_softc *ahc)
 
 static void ahc_linux_exit(void);
 
+static void ahc_linux_get_width(struct scsi_target *starget)
+{
+        struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+        struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
+        struct ahc_tmode_tstate *tstate;
+        struct ahc_initiator_tinfo *tinfo 
+                = ahc_fetch_transinfo(ahc,
+                                      starget->channel + 'A',
+                                      shost->this_id, starget->id, &tstate);
+        spi_width(starget) = tinfo->curr.width;
+}
+
+static void ahc_linux_set_width(struct scsi_target *starget, int width)
+{
+        struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+        struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
+        struct ahc_devinfo devinfo;
+        unsigned long flags;
+
+        ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
+                            starget->channel + 'A', ROLE_INITIATOR);
+        ahc_lock(ahc, &flags);
+        ahc_set_width(ahc, &devinfo, width, AHC_TRANS_GOAL, FALSE);
+        ahc_unlock(ahc, &flags);
+}
+
 static void ahc_linux_get_period(struct scsi_target *starget)
 {
         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
@@ -3378,6 +3404,14 @@ static void ahc_linux_set_period(struct scsi_target *starget, int period)
 
         ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                             starget->channel + 'A', ROLE_INITIATOR);
+
+        /* all PPR requests apart from QAS require wide transfers */
+        if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) {
+                ahc_linux_get_width(starget);
+                if (spi_width(starget) == 0)
+                        ppr_options &= MSG_EXT_PPR_QAS_REQ;
+        }
+
         syncrate = ahc_find_syncrate(ahc, &period, &ppr_options, AHC_SYNCRATE_DT);
         ahc_lock(ahc, &flags);
         ahc_set_syncrate(ahc, &devinfo, syncrate, period, offset,
@@ -3425,32 +3459,6 @@ static void ahc_linux_set_offset(struct scsi_target *starget, int offset)
         ahc_unlock(ahc, &flags);
 }
 
-static void ahc_linux_get_width(struct scsi_target *starget)
-{
-        struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
-        struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
-        struct ahc_tmode_tstate *tstate;
-        struct ahc_initiator_tinfo *tinfo 
-                = ahc_fetch_transinfo(ahc,
-                                      starget->channel + 'A',
-                                      shost->this_id, starget->id, &tstate);
-        spi_width(starget) = tinfo->curr.width;
-}
-
-static void ahc_linux_set_width(struct scsi_target *starget, int width)
-{
-        struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
-        struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
-        struct ahc_devinfo devinfo;
-        unsigned long flags;
-
-        ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
-                            starget->channel + 'A', ROLE_INITIATOR);
-        ahc_lock(ahc, &flags);
-        ahc_set_width(ahc, &devinfo, width, AHC_TRANS_GOAL, FALSE);
-        ahc_unlock(ahc, &flags);
-}
-
 static void ahc_linux_get_dt(struct scsi_target *starget)
 {
         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
@@ -3481,8 +3489,7 @@ static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
 
         ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                             starget->channel + 'A', ROLE_INITIATOR);
-        syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
-                                     dt ? AHC_SYNCRATE_DT : AHC_SYNCRATE_ULTRA2);
+        syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,AHC_SYNCRATE_DT);
         ahc_lock(ahc, &flags);
         ahc_set_syncrate(ahc, &devinfo, syncrate, period, tinfo->curr.offset,
                          ppr_options, AHC_TRANS_GOAL, FALSE);
@@ -3514,7 +3521,6 @@ static void ahc_linux_set_qas(struct scsi_target *starget, int qas)
         unsigned int ppr_options = tinfo->curr.ppr_options
                 & ~MSG_EXT_PPR_QAS_REQ;
         unsigned int period = tinfo->curr.period;
-        unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
         unsigned long flags;
         struct ahc_syncrate *syncrate;
 
@@ -3523,8 +3529,7 @@ static void ahc_linux_set_qas(struct scsi_target *starget, int qas)
 
         ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                             starget->channel + 'A', ROLE_INITIATOR);
-        syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
-                                     dt ? AHC_SYNCRATE_DT : AHC_SYNCRATE_ULTRA2);
+        syncrate = ahc_find_syncrate(ahc, &period, &ppr_options, AHC_SYNCRATE_DT);
         ahc_lock(ahc, &flags);
         ahc_set_syncrate(ahc, &devinfo, syncrate, period, tinfo->curr.offset,
                          ppr_options, AHC_TRANS_GOAL, FALSE);
@@ -3556,7 +3561,6 @@ static void ahc_linux_set_iu(struct scsi_target *starget, int iu)
         unsigned int ppr_options = tinfo->curr.ppr_options
                 & ~MSG_EXT_PPR_IU_REQ;
         unsigned int period = tinfo->curr.period;
-        unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
         unsigned long flags;
         struct ahc_syncrate *syncrate;
 
@@ -3565,8 +3569,7 @@ static void ahc_linux_set_iu(struct scsi_target *starget, int iu)
 
         ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                             starget->channel + 'A', ROLE_INITIATOR);
-        syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
-                                     dt ? AHC_SYNCRATE_DT : AHC_SYNCRATE_ULTRA2);
+        syncrate = ahc_find_syncrate(ahc, &period, &ppr_options, AHC_SYNCRATE_DT);
         ahc_lock(ahc, &flags);
         ahc_set_syncrate(ahc, &devinfo, syncrate, period, tinfo->curr.offset,
                          ppr_options, AHC_TRANS_GOAL, FALSE);