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Add rotationrate to geom disk dumpconf

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Parse and report the nominal rotation rate reported by the drive.

Reviewed by:	sbruno, jhb
Approved by:	jhb
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D4483
Requested by:	Kevin Bowling < kevin.bowling @ kev009.com >
This commit is contained in:
Ravi Pokala 2016-01-14 21:52:21 +00:00
parent bff57f7053
commit cb03a5029b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=294042
1 changed files with 17 additions and 0 deletions
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17
sys/geom/geom_disk.c
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@ -549,6 +549,23 @@ g_disk_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, struct g
indent, dp->d_fwheads);
sbuf_printf(sb, "%s<fwsectors>%u</fwsectors>\n",
indent, dp->d_fwsectors);
/*
* "rotationrate" is a little complicated, because the value
* returned by the drive might not be the RPM; 0 and 1 are
* special cases, and there's also a valid range.
*/
sbuf_printf(sb, "%s<rotationrate>", indent);
if (dp->d_rotation_rate == 0) /* Old drives don't */
sbuf_printf(sb, "unknown"); /* report RPM. */
else if (dp->d_rotation_rate == 1) /* Since 0 is used */
sbuf_printf(sb, "0"); /* above, SSDs use 1. */
else if ((dp->d_rotation_rate >= 0x041) &&
(dp->d_rotation_rate <= 0xfffe))
sbuf_printf(sb, "%u", dp->d_rotation_rate);
else
sbuf_printf(sb, "invalid");
sbuf_printf(sb, "</rotationrate>\n");
if (dp->d_getattr != NULL) {
buf = g_malloc(DISK_IDENT_SIZE, M_WAITOK);
bp = g_alloc_bio();