This is similar to the previous sym2 problem. For Domain Validation to
work we can't allow any period setting to turn wide on if it was
previously off.
James
--- 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_
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
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
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
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 scs
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 scs
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
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
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);
-
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