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Add LU option to control reported provisioning type.

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MFC after:	2 weeks
This commit is contained in:
Alexander Motin 2016-10-15 14:40:34 +00:00
parent db1fcc8008
commit 4928a0c224
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=307374
2 changed files with 16 additions and 2 deletions
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10
sys/cam/ctl/ctl.c
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@ -10040,6 +10040,7 @@ ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len)
{
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 *ctsio, int alloc_len)
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);

8
usr.sbin/ctladm/ctladm.8
View File

@ -903,8 +903,14 @@ Specifies medium rotation rate of the device: 0 -- not reported,
.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