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scst_vdisk: Make EUI-64 and NAA IDs configurable

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Make the SCSI device identification page (83h) EUI-64 and NAA
IDs configurable. If neither the eui64_id nor the naa_id sysfs
attribute has been set, export the first eight bytes of the
t10_dev_id as an EUI-64 ID. If the NAA ID but not the EUI-64 ID
has been set, report the NAA ID only. If both IDs have been set,
report both.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5730 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2014-08-26 03:44:23 +00:00
parent c6e5553797
commit dcd1f6b3cd
5 changed files with 316 additions and 22 deletions
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scst/README
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@@ -1067,6 +1067,33 @@ Each vdisk_fileio's device has the following attributes in
that these first eight characters are unique or VMware will consider
these devices as identical.
- eui64_id - allows to set the EUI-64 based device identifier in the
SCSI device identification VPD page (83h). This identifier must be 8,
12 or 16 bytes long and must be specified in hexadecimal format (EUI =
Extended Unique Identifier). A leading "0x" is allowed but is not
required. Writing a newline into this attribute discards the EUI-64
identifier. If neither eui64_id nor naa_id have been set the first
eight bytes of the t10_dev_id are used as the EUI-64 ID. If naa_id has
been set but eui64_id has not been set no EUI-64 identifier is
reported in the SCSI device identification VPD page. If eui64_id has
been set the value of this attribute is reported as the EUI-64 ID. The
first three bytes of an EUI-64 ID are a so-called organizationally
unique identifier (OUI). The remaining bytes may be choosen by the
organization that owns the OUI. For more information about OUIs, see
also http://standards.ieee.org/develop/regauth/oui/public.html.
- naa_id - allows to set the NAA ID in the SCSI INQUIRY response (NAA =
Network Address Authority). This identifier must be 8 or 16 bytes long
and must be specified in hex format. A leading "0x" is allowed but is
not required. Writing a newline into this attribute discards the NAA
ID. If this ID is set it is reported in the SCSI VPD device
identification page (83h). More information about NAA identifiers can
be found in the following documents:
* ANSI T11 committee, Fibre Channel Framing and Signaling Interface - 4
(FC-FS-4) rev 0.50, May 2014 (http://www.t11.org/).
* IETF, RFC 3980 - T11 Network Address Authority (NAA) Naming Format for
iSCSI Node Names, February 2005 (https://tools.ietf.org/html/rfc3980).
- t10_vend_id - Contents of the T10 VENDOR IDENTIFICATION field of the
INQUIRY response. The default value for this field is "SCST_BIO" for
vdisk_block devices and "SCST_FIO" for vdisk_fileio devices.