[dpdk-dev] [PATCH V20 0/4] add hot plug recovery mechanism

[Jeff Guo]

At the prior, device event monitor framework have been introduced, 
the typical usage of it is for device hot plug. If we want application
would not be break down when device hot plug in or out, we still need some
measures to do recovery to do preparation for device detach, so that we will
not encounter any memory fault after device be hot unplug, that will let
application to keep working.

This patch set will introduces an API to implement the recovery mechanism to 
handle hot plug, and also use testpmd to show example how to
use the API for process hot plug event, let the process could be
smoothly like below:

plug out->failure handle->stop forward->stop port->close port->detach port

with this mechanism, user such as fail-safe driver or testpmd could be able to
develop their own hot plug application.

patchset history:
v20->v19:
clean the code
refine the remap logic for multiple device.
remove the auto binding  

v19->18:
note for limitation of multiple hotplug,fix some typo, sqeeze patch.

v18->v15:
add document, add signal bus handler, refine the code to be more clear.

the prior patch history please check the patch set
"add device event monitor framework"

Jeff Guo (4):
  bus/pci: introduce device hot unplug handle
  eal: add failure handler mechanism for hot plug
  igb_uio: fix uio release issue when hot unplug
  app/testpmd: show example to handler hot unplug

 app/test-pmd/testpmd.c                  |  29 ++++++--
 doc/guides/rel_notes/release_18_05.rst  |   6 ++
 drivers/bus/pci/pci_common.c            |  67 +++++++++++++++++
 drivers/bus/pci/pci_common_uio.c        |  32 +++++++++
 drivers/bus/pci/private.h               |  12 ++++
 kernel/linux/igb_uio/igb_uio.c          |   4 ++
 lib/librte_eal/common/include/rte_bus.h |  16 +++++
 lib/librte_eal/common/include/rte_dev.h |  11 +++
 lib/librte_eal/linuxapp/eal/eal_dev.c   | 124 +++++++++++++++++++++++++++++++-
 lib/librte_eal/rte_eal_version.map      |   1 +
 10 files changed, 297 insertions(+), 5 deletions(-)

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2.7.4