[dpdk-dev] [PATCH V18 0/5] add hot plug failure and auto bind handler
Jeff Guo
jia.guo at intel.com
Tue Apr 3 20:17:18 CEST 2018
At the prior, device event monitor machenism have been introduced.
But for device hot unplug, if we want our data path would not be break when
device hot plug in or out, we still need some preparatory measures to do
some preparation work for the device detach and attach, so that we will
not encounter memory fault after device have been plug out of the system,
and also let user directly attach device which have been auto bind onto
the specific kernel driver.
This patch set will introduces two APIs to do that failure and auto bind
handle for hot plug feature, and also use testpmd to show example how to
use these 2 APIs for process hot plug event, let the process could be
smoothly like below case:
1)hot plug removal:
plugout->failure handle->stop forward->stop port->close port->detach port
2)hot plug insertion:
plugin->kernel driver auto bind->attach port->start port
with this machenism, every use such as fail-safe driver which have enable device
event monitor will be able to develop their own hotplug application.
patchset history:
v16->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 (5):
bus: introduce device hot unplug handle
bus/pci: implement handle hot unplug operation
eal: add failure handler mechanism for hot plug
eal: add driver auto bind for hot insertion
app/testpmd: use auto handle for hotplug
app/test-pmd/testpmd.c | 178 ++++++++++++++++++++++++----
app/test-pmd/testpmd.h | 9 ++
doc/guides/rel_notes/release_18_05.rst | 8 ++
drivers/bus/pci/pci_common.c | 42 +++++++
drivers/bus/pci/pci_common_uio.c | 33 ++++++
drivers/bus/pci/private.h | 12 ++
lib/librte_eal/bsdapp/eal/eal_dev.c | 7 ++
lib/librte_eal/common/include/rte_bus.h | 15 +++
lib/librte_eal/common/include/rte_dev.h | 35 ++++++
lib/librte_eal/linuxapp/eal/eal_dev.c | 188 +++++++++++++++++++++++++++++-
lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 4 +
lib/librte_eal/rte_eal_version.map | 2 +
12 files changed, 509 insertions(+), 24 deletions(-)
--
2.7.4
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