Author: mav
Date: Sat Oct 15 14:40:34 2016
New Revision: 307374
URL: https://svnweb.freebsd.org/changeset/base/307374
Log:
Add LU option to control reported provisioning type.
MFC after: 2 weeks
Modified:
head/sys/cam/ctl/ctl.c
head/usr.sbin/ctladm/ctladm.8
Modified: head/sys/cam/ctl/ctl.c
==============================================================================
--- head/sys/cam/ctl/ctl.c Sat Oct 15 13:45:12 2016 (r307373)
+++ head/sys/cam/ctl/ctl.c Sat Oct 15 14:40:34 2016 (r307374)
@@ -10040,6 +10040,7 @@ ctl_inquiry_evpd_lbp(struct ctl_scsiio *
{
struct scsi_vpd_logical_block_prov *lbp_ptr;
struct ctl_lun *lun;
+ const char *value;
lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
@@ -10077,7 +10078,14 @@ ctl_inquiry_evpd_lbp(struct ctl_scsiio *
if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) {
lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 |
SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP;
- lbp_ptr->prov_type = SVPD_LBP_THIN;
+ value = ctl_get_opt(&lun->be_lun->options, "provisioning_type");
+ if (value != NULL) {
+ if (strcmp(value, "resource") == 0)
+ lbp_ptr->prov_type = SVPD_LBP_RESOURCE;
+ else if (strcmp(value, "thin") == 0)
+ lbp_ptr->prov_type = SVPD_LBP_THIN;
+ } else
+ lbp_ptr->prov_type = SVPD_LBP_THIN;
}
ctl_set_success(ctsio);
Modified: head/usr.sbin/ctladm/ctladm.8
==============================================================================
--- head/usr.sbin/ctladm/ctladm.8 Sat Oct 15 13:45:12 2016
(r307373)
+++ head/usr.sbin/ctladm/ctladm.8 Sat Oct 15 14:40:34 2016
(r307374)
@@ -903,8 +903,14 @@ Specifies medium rotation rate of the de
.It Va formfactor
Specifies nominal form factor of the device: 0 -- not reported, 1 -- 5.25",
2 -- 3.5", 3 -- 2.5", 4 -- 1.8", 5 -- less then 1.8".
+.It Va provisioning_type
+When UNMAP support is enabled, this option specifies provisioning type:
+"resource", "thin" or "unknown".
+Default value is "thin".
+Logical units without UNMAP support are reported as fully provisioned.
.It Va unmap
-Set to "on", enables UNMAP support for the LUN, if supported by the backend.
+Setting to "on" or "off" controls UNMAP support for the logical unit.
+Default value is "on" if supported by the backend.
.It Va unmap_max_lba
.It Va unmap_max_descr
Specify maximum allowed number of LBAs and block descriptors per UNMAP
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