[dpdk-dev] [PATCH V21 0/4] hot plug recovery mechanism

[Jeff Guo]

At the prior, device event monitor framework have been introduced,
the typical usage 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 help app to handle that, such as recovery device for
device detaching, so that app can keep running smoothly but not be
disturbed by any hotplug behaviors.

This patch set will introduces an recovery mechanism to handle hot unplug,
and also use testpmd to show example of how to use this mechanism to process
hot plug event. The process could be shown as 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:
v21->v20:
split function in hot unplug ops
sync failure hanlde to fix multiple process issue
fix attach port issue for multiple devices case.  

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: handle device hot unplug
  eal: add failure handle mechanism for hot plug
  igb_uio: fix uio release issue when hot unplug
  app/testpmd: show example to handle hot unplug

 app/test-pmd/testpmd.c                  |  28 ++++--
 drivers/bus/pci/pci_common.c            |  65 ++++++++++++++
 drivers/bus/pci/pci_common_uio.c        |  33 +++++++
 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/linuxapp/eal/eal_dev.c   | 154 +++++++++++++++++++++++++++++++-
 7 files changed, 306 insertions(+), 6 deletions(-)

-- 
2.7.4