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Commit a4b53a11 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by James Bottomley
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[SCSI] aic79xx: DV parameter settings 

This patch updates various scsi_transport_spi parameters with the actual
parameters used by the driver internally.
Domain Validation for all devices should now work properly.
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 73a25462
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Showing with 218 additions and 13 deletions
drivers/scsi/aic7xxx/aic79xx_osm.c
View file @ a4b53a11
......@@ -1636,9 +1636,9 @@ ahd_send_async(struct ahd_softc *ahd, char channel,
spi_period(starget) = tinfo->curr.period;
spi_width(starget) = tinfo->curr.width;
spi_offset(starget) = tinfo->curr.offset;
spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ;
spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ;
spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ;
spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0;
spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0;
spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0;
spi_display_xfer_agreement(starget);
break;
}
......@@ -2318,6 +2318,18 @@ done:
static void ahd_linux_exit(void);
static void ahd_linux_set_xferflags(struct scsi_target *starget, unsigned int ppr_options, unsigned int period)
{
spi_qas(starget) = (ppr_options & MSG_EXT_PPR_QAS_REQ)? 1 : 0;
spi_dt(starget) = (ppr_options & MSG_EXT_PPR_DT_REQ)? 1 : 0;
spi_iu(starget) = (ppr_options & MSG_EXT_PPR_IU_REQ) ? 1 : 0;
spi_rd_strm(starget) = (ppr_options & MSG_EXT_PPR_RD_STRM) ? 1 : 0;
spi_wr_flow(starget) = (ppr_options & MSG_EXT_PPR_WR_FLOW) ? 1 : 0;
spi_pcomp_en(starget) = (ppr_options & MSG_EXT_PPR_PCOMP_EN) ? 1 : 0;
spi_rti(starget) = (ppr_options & MSG_EXT_PPR_RTI) ? 1 : 0;
spi_period(starget) = period;
}
static void ahd_linux_set_width(struct scsi_target *starget, int width)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
......@@ -2343,9 +2355,14 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period)
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options;
unsigned int dt;
unsigned long flags;
unsigned long offset = tinfo->goal.offset;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: set period to %d\n", ahd_name(ahd), period);
#endif
if (offset == 0)
offset = MAX_OFFSET;
......@@ -2357,6 +2374,8 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period)
ppr_options |= MSG_EXT_PPR_IU_REQ;
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
......@@ -2366,7 +2385,11 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period)
ppr_options &= MSG_EXT_PPR_QAS_REQ;
}
ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_linux_set_xferflags(starget, ppr_options, period);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
......@@ -2385,15 +2408,24 @@ static void ahd_linux_set_offset(struct scsi_target *starget, int offset)
struct ahd_devinfo devinfo;
unsigned int ppr_options = 0;
unsigned int period = 0;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: set offset to %d\n", ahd_name(ahd), offset);
#endif
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
if (offset != 0) {
period = tinfo->goal.period;
ppr_options = tinfo->goal.ppr_options;
ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
}
ahd_linux_set_xferflags(starget, ppr_options, period);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options,
AHD_TRANS_GOAL, FALSE);
......@@ -2415,17 +2447,28 @@ static void ahd_linux_set_dt(struct scsi_target *starget, int dt)
unsigned int period = tinfo->goal.period;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s DT\n", ahd_name(ahd),
dt ? "enabling" : "disabling");
#endif
if (dt) {
ppr_options |= MSG_EXT_PPR_DT_REQ;
if (period > 9)
period = 9; /* at least 12.5ns for DT */
} else if (period <= 9)
} else {
if (period <= 9)
period = 10; /* If resetting DT, period must be >= 25ns */
/* IU is invalid without DT set */
ppr_options &= ~MSG_EXT_PPR_IU_REQ;
}
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_linux_set_xferflags(starget, ppr_options, period);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
......@@ -2445,16 +2488,28 @@ static void ahd_linux_set_qas(struct scsi_target *starget, int qas)
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_QAS_REQ;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned int dt;
unsigned long flags;
if (qas)
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s QAS\n", ahd_name(ahd),
qas ? "enabling" : "disabling");
#endif
if (qas) {
ppr_options |= MSG_EXT_PPR_QAS_REQ;
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
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);
spi_qas(starget) = (ppr_options & MSG_EXT_PPR_QAS_REQ)? 1 : 0;
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
......@@ -2474,16 +2529,29 @@ static void ahd_linux_set_iu(struct scsi_target *starget, int iu)
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_IU_REQ;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned int dt;
unsigned long flags;
if (iu)
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s IU\n", ahd_name(ahd),
iu ? "enabling" : "disabling");
#endif
if (iu) {
ppr_options |= MSG_EXT_PPR_IU_REQ;
ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
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_linux_set_xferflags(starget, ppr_options, period);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
......@@ -2506,6 +2574,12 @@ static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm)
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s Read Streaming\n", ahd_name(ahd),
rdstrm ? "enabling" : "disabling");
#endif
if (rdstrm)
ppr_options |= MSG_EXT_PPR_RD_STRM;
......@@ -2513,6 +2587,131 @@ static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm)
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
spi_rd_strm(starget) = (ppr_options & MSG_EXT_PPR_RD_STRM) ? 1 : 0;
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow)
{
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_WR_FLOW;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s Write Flow Control\n", ahd_name(ahd),
wrflow ? "enabling" : "disabling");
#endif
if (wrflow)
ppr_options |= MSG_EXT_PPR_WR_FLOW;
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);
spi_wr_flow(starget) = (ppr_options & MSG_EXT_PPR_WR_FLOW) ? 1 : 0;
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_rti(struct scsi_target *starget, int rti)
{
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_RTI;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
if ((ahd->features & AHD_RTI) == 0) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: RTI not available\n", ahd_name(ahd));
#endif
return;
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s RTI\n", ahd_name(ahd),
rti ? "enabling" : "disabling");
#endif
if (rti)
ppr_options |= MSG_EXT_PPR_RTI;
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);
spi_rti(starget) = (ppr_options & MSG_EXT_PPR_RTI) ? 1 : 0;
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp)
{
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_PCOMP_EN;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printf("%s: %s Precompensation\n", ahd_name(ahd),
pcomp ? "Enable" : "Disable");
#endif
if (pcomp)
ppr_options |= MSG_EXT_PPR_PCOMP_EN;
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);
spi_pcomp_en(starget) = (ppr_options & MSG_EXT_PPR_PCOMP_EN) ? 1 : 0;
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
......@@ -2534,6 +2733,12 @@ static struct spi_function_template ahd_linux_transport_functions = {
.show_qas = 1,
.set_rd_strm = ahd_linux_set_rd_strm,
.show_rd_strm = 1,
.set_wr_flow = ahd_linux_set_wr_flow,
.show_wr_flow = 1,
.set_rti = ahd_linux_set_rti,
.show_rti = 1,
.set_pcomp_en = ahd_linux_set_pcomp_en,
.show_pcomp_en = 1,
};
......
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