[dm-devel] [PATCH v2 10/17] libmultipath: add code to get vendor specific vpd data

[Martin Wilck]

On Wed, 2020-02-05 at 12:58 -0600, Benjamin Marzinski wrote:
> This adds the wildcard 'g' for multipath and path formatted printing,
> which returns extra data from a device's vendor specific vpd
> page.  The
> specific vendor vpd page to use, and the vendor/product id to decode
> it
> can be set in the hwentry with vpd_vendor_pg and vpd_vendor_id. It
> can
> be configured in the devices section of multipath.conf with the
> vpd_vendor parameter. Currently, the only devices that use this are
> HPE
> 3PAR arrays, to return the Volume Name.
> 
> Signed-off-by: Benjamin Marzinski <bmarzins at redhat.com>
> ---
>  libmultipath/config.c      |  2 ++
>  libmultipath/config.h      |  1 +
>  libmultipath/dict.c        | 38 ++++++++++++++++++++++++++++++++++++
>  libmultipath/discovery.c   | 40
> +++++++++++++++++++++++++++++++++++++-
>  libmultipath/hwtable.c     |  1 +
>  libmultipath/print.c       | 25 ++++++++++++++++++++++++
>  libmultipath/propsel.c     | 18 +++++++++++++++++
>  libmultipath/propsel.h     |  1 +
>  libmultipath/structs.h     | 15 ++++++++++++++
>  multipath/multipath.conf.5 |  8 ++++++++
>  10 files changed, 148 insertions(+), 1 deletion(-)

Acked-by: Martin Wilck <mwilck at suse.com>

(wishing that the memory usage can be decreased in a follow-up patch).