[dm-devel] [PATCH v2 0/7] Add protocol specific config subsection

[Benjamin Marzinski]

Some storage arrays can be accessed using multiple protocols at the same
time.  I've have customers request the ability to set different values
for the path specific timeouts, like fast_io_fail_tmo, based on the
protocol used to access the path. In order to make this possible, this
patchset adds a new protocol subsection to the overrides section. This
allows users to set a device config's path specific timeouts, such as
dev_loss_tmo, fast_io_fail_tmo, and eh_deadline on a per-protocol basis.

Changes from v1 (all based on suggestions from Martin Wilck):
0003: Adds the protocol subsection to the overrides section instead of
      the device subsection, pulling in code from original patch 0007
0005: Checks the pctable of the overrides section instead of the
      hwes, pulling in code from original patch 0007
Original patches 0006 and 0007 have been removed.
0007: (original patch 0009) modified the man page to no longer
      reference the protocol subsection under the device
      subsection

Benjamin Marzinski (7):
  libmultipath: steal the src string pointer in merge_str()
  libmultipath: make protocol_name global
  libmultipath: add a protocol subsection to multipath.conf
  libmultipath: Set the scsi timeout parameters by path
  libmultipath: check the overrides pctable for path variables
  libmultipath: fix eh_deadline documentation
  libmultipath: Add documentation for the protocol subsection

 libmultipath/config.c      |  99 ++++++++++++++++++---
 libmultipath/config.h      |  10 +++
 libmultipath/configure.c   |   5 +-
 libmultipath/dict.c        |  99 +++++++++++++++++++++
 libmultipath/discovery.c   | 174 +++++++++++++++++++++----------------
 libmultipath/discovery.h   |   2 +-
 libmultipath/print.c       |  67 ++++++++++----
 libmultipath/propsel.c     |  65 +++++++++-----
 libmultipath/propsel.h     |   6 +-
 libmultipath/structs.c     |  19 +++-
 libmultipath/structs.h     |   7 +-
 multipath/multipath.conf.5 |  36 ++++++++
 12 files changed, 452 insertions(+), 137 deletions(-)

-- 
2.17.2