[PATCH v9 0/2] eal: add function to check primary alive

[Harry van Haaren <harry.van.haaren@intel.com>]

The first patch of this patchset contains a fix for EAL PCI probing,
to avoid a race-condition where a primary and secondary probe PCI
devices at the same time.

The second patch adds a function that can be polled by a process to
detect if a DPDK primary process is alive. This function does not
rely on rte_eal_init(), as this uses the EAL and thus stops a
primary from starting.

The functionality provided by this patch is very useful for providing
additional services to DPDK primary applications such as monitoring
statistics and performing fault detection.

v9:
- Improve commit message for EAL fix

v8:
- include implementation of function (got lost in v7)

v7:
- split patch into two, one for eal fix, one for adding functionality

v6:
- Fix license header

v5:
- Renamed returns in doc from words to digits
- Fixed line spacing in docs
- Fixed line spacing in EAL header
- Rebased to master (Makefile conflicts)

v4:
- Rebased to git head (2.3 -> 16.04 changes)

v3:
- Fixed Copyright years

v2:
- Passing NULL as const char* uses default /var/run/.rte_config
- Moved co


Harry van Haaren (2):
  eal: fix race-condition in pri/sec proc startup
  eal: add function to check if primary proc alive

 doc/guides/rel_notes/release_16_04.rst          |  8 ++++
 lib/librte_eal/bsdapp/eal/Makefile              |  1 +
 lib/librte_eal/bsdapp/eal/eal.c                 |  6 +--
 lib/librte_eal/bsdapp/eal/rte_eal_version.map   |  1 +
 lib/librte_eal/common/eal_common_proc.c         | 61 +++++++++++++++++++++++++
 lib/librte_eal/common/include/rte_eal.h         | 20 +++++++-
 lib/librte_eal/linuxapp/eal/Makefile            |  3 +-
 lib/librte_eal/linuxapp/eal/eal.c               |  6 +--
 lib/librte_eal/linuxapp/eal/rte_eal_version.map |  1 +
 9 files changed, 99 insertions(+), 8 deletions(-)
 create mode 100644 lib/librte_eal/common/eal_common_proc.c

-- 
2.5.0