linux/drivers/scsi/osd
Boaz Harrosh 2cdd6410e5 [SCSI] libosd: osd_dev_info: Unique Identification of an OSD device
Define an osd_dev_info structure that Uniquely identifies an OSD
device lun on the network. The identification is built from unique
target attributes and is the same for all network/SAN machines.

osduld_info_lookup() - NEW
    New API that will lookup an osd_dev by its osd_dev_info.
    This is used by pNFS-objects for cross network global device
    identification. And by exofs multy-device support, the device
    info is specified in the on-disk exofs device table.

osduld_device_info() - NEW
    Given an osd_dev handle returns its associated osd_dev_info.
    The ULD fetches this information at startup and hangs it on
    each OSD device. (This is a fast operation that can be called
    at any condition)

osduld_device_same() - NEW
    With a given osd_dev at one hand and an osd_dev_info
    at another, we would like to know if they are the same
    device.
    Two osd_dev handles can be checked by:
        osduld_device_same(od1, osduld_device_info(od2));

osd_auto_detect_ver() - REVISED
    Now returns an osd_dev_info structure. Is only called once
    by ULD as before. See added comments for how to use.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04 12:01:46 -06:00
..
Kbuild [SCSI] osd: Remove out-of-tree left overs 2009-06-10 09:00:41 -05:00
Kconfig [SCSI] osd: Kconfig file for in-tree builds 2009-03-12 12:58:09 -05:00
osd_debug.h [SCSI] libosd: OSDv1 preliminary implementation 2009-03-12 12:58:06 -05:00
osd_initiator.c [SCSI] libosd: osd_dev_info: Unique Identification of an OSD device 2009-12-04 12:01:46 -06:00
osd_uld.c [SCSI] libosd: osd_dev_info: Unique Identification of an OSD device 2009-12-04 12:01:46 -06:00