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Make device initialization sequence shorter when possible. Do not enable/

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disable already enabled/disabled SATA features.
This commit is contained in:
mav 2011-01-26 06:37:51 +00:00
parent a553f5bca5
commit 36a124cfce
1 changed files with 9 additions and 3 deletions
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12
sys/cam/ata/ata_xpt.c
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@ -988,7 +988,9 @@ noerror:
cts.xport_specific.sata.valid = CTS_SATA_VALID_CAPS;
xpt_action((union ccb *)&cts);
softc->caps = caps;
if (ident_buf->satasupport & ATA_SUPPORT_IFPWRMNGT) {
if ((ident_buf->satasupport & ATA_SUPPORT_IFPWRMNGT) &&
(!(softc->caps & CTS_SATA_CAPS_H_PMREQ)) !=
(!(ident_buf->sataenabled & ATA_SUPPORT_IFPWRMNGT))) {
PROBE_SET_ACTION(softc, PROBE_SETPM);
xpt_release_ccb(done_ccb);
xpt_schedule(periph, priority);
@ -997,7 +999,9 @@ noerror:
/* FALLTHROUGH */
case PROBE_SETPM:
if (ident_buf->satacapabilities != 0xffff &&
ident_buf->satacapabilities & ATA_SUPPORT_DAPST) {
(ident_buf->satacapabilities & ATA_SUPPORT_DAPST) &&
(!(softc->caps & CTS_SATA_CAPS_H_APST)) !=
(!(ident_buf->sataenabled & ATA_ENABLED_DAPST))) {
PROBE_SET_ACTION(softc, PROBE_SETAPST);
xpt_release_ccb(done_ccb);
xpt_schedule(periph, priority);
@ -1005,7 +1009,9 @@ noerror:
}
/* FALLTHROUGH */
case PROBE_SETAPST:
if (ident_buf->satasupport & ATA_SUPPORT_AUTOACTIVATE) {
if ((ident_buf->satasupport & ATA_SUPPORT_AUTOACTIVATE) &&
(!(softc->caps & CTS_SATA_CAPS_H_DMAAA)) !=
(!(ident_buf->sataenabled & ATA_SUPPORT_AUTOACTIVATE))) {
PROBE_SET_ACTION(softc, PROBE_SETDMAAA);
xpt_release_ccb(done_ccb);
xpt_schedule(periph, priority);