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
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