since this card can support the setting, add it to the parameter list.
James
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1628,7 +1628,8 @@ ahd_send_async(struct ahd_softc *ahd, ch
+ (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0)
+ (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0)
+ (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0)
- + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0);
+ + (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0)
+ + (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0);
if (tinfo->curr.period == spi_period(starget)
&& tinfo->curr.width == spi_width(starget)
@@ -1647,6 +1648,7 @@ ahd_send_async(struct ahd_softc *ahd, ch
spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0;
spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0;
spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0;
+ spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0;
spi_display_xfer_agreement(starget);
break;
}
@@ -2697,6 +2699,38 @@ static void ahd_linux_set_pcomp_en(struc
ahd_unlock(ahd, &flags);
}
+static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold)
+{
+ struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+ struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
+ struct ahd_tmode_tstate *tstate;
+ struct ahd_initiator_tinfo *tinfo
+ = ahd_fetch_transinfo(ahd,
+ starget->channel + 'A',
+ shost->this_id, starget->id, &tstate);
+ struct ahd_devinfo devinfo;
+ unsigned int ppr_options = tinfo->goal.ppr_options
+ & ~MSG_EXT_PPR_HOLD_MCS;
+ unsigned int period = tinfo->goal.period;
+ unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
+ unsigned long flags;
+
+ if (hold)
+ ppr_options |= MSG_EXT_PPR_HOLD_MCS;
+
+ ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
+ starget->channel + 'A', ROLE_INITIATOR);
+ ahd_find_syncrate(ahd, &period, &ppr_options,
+ dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
+
+ ahd_lock(ahd, &flags);
+ ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
+ ppr_options, AHD_TRANS_GOAL, FALSE);
+ ahd_unlock(ahd, &flags);
+}
+
+
+
static struct spi_function_template ahd_linux_transport_functions = {
.set_offset = ahd_linux_set_offset,
.show_offset = 1,
@@ -2718,6 +2752,8 @@ static struct spi_function_template ahd_
.show_rti = 1,
.set_pcomp_en = ahd_linux_set_pcomp_en,
.show_pcomp_en = 1,
+ .set_hold_mcs = ahd_linux_set_hold_mcs,
+ .show_hold_mcs = 1,
};
-
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