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-   -   scsi_dh update (http://www.linux-archive.org/device-mapper-development/126335-scsi_dh-update.html)

Hannes Reinecke 07-17-2008 07:37 AM

scsi_dh update
 
Hi James,

this is the (hopefully final) update to my scsi_dh patchset.
Features are:

- Move device-table matching into the device_handler infrastructure,
so that individual drivers don't have to implement it themselves
- Adds a 'dh_state' sysfs attribute for manually attaching device
handler to new or unknown disks; this allows to override the
internal device tables
- Update the dm-multipath code to attach the device handler
specified in the multipath configuration
- Add a cache to speed up lookup of several identical devices
- Update existing EMC, RDAC, and hp_sw device handler to use
the new infrastructure
- Add new SPC-3 ALUA device handler

The NetApp device handler has been left out for now as it's still
under development.

Please apply.

Cheers,

Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)

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Chandra Seetharaman 07-17-2008 11:52 PM

scsi_dh update
 
Hi James, Hannes,

These are the same set of patches that Hannes sent early this morning with the
prelog below.

I just ported it to compile clean on top of 2.6.26-git6.

Made 3 additional changes:
1. Added a break under MODE_SELECT option in function get_req() (in 3/8)
2. Added the ifndef portion for scsi_dh_attach() and scsi_dh_detach (in 6/8)
3. Moved the definition of SCSI_DH_DEV_UNSUPP from 6/8 to 3/8.

regards,

chandra
------ Here is the 0/8 from Hannes's original patchset. -----------

Hi James,

this is the (hopefully final) update to my scsi_dh patchset.
Features are:

- Move device-table matching into the device_handler infrastructure,
so that individual drivers don't have to implement it themselves
- Adds a 'dh_state' sysfs attribute for manually attaching device
handler to new or unknown disks; this allows to override the
internal device tables
- Update the dm-multipath code to attach the device handler
specified in the multipath configuration
- Add a cache to speed up lookup of several identical devices
- Update existing EMC, RDAC, and hp_sw device handler to use
the new infrastructure
- Add new SPC-3 ALUA device handler

The NetApp device handler has been left out for now as it's still
under development.

Please apply.

Cheers,

Hannes
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