[dpdk-dev] [PATCH v3 0/4] make vhost PMD available for secondary processes
Itsuro Oda
oda at valinux.co.jp
Thu Feb 6 02:39:32 CET 2020
vhost PMD has not been available for secondary processes since
DPDK v18.11. (https://bugs.dpdk.org/show_bug.cgi?id=194)
(for a long term !)
This series of patches intend to make vhost PMD available for
secondary processes.
Because now setting vhost driver to communicate with a vhost-user
master (ex. Qemu) is accomplished by the probe function of the
primary process, only the primary process can be a vhost-user
slave.
With this patch, setting vhost driver is delayed at eth_dev
configuration in order to be able to set it from a secondary
process. Because (in the first place,) setting vhost driver is not
necessary to be done at probe (it is enough to be done up to eth_dev
start), this fix is no problem for the primary process.
There is a precondition that the same process has to operate
a vhost interface from beginning to end (from eth_dev configuration
to eth_dev close). (This patch leaves it to user's responsibility.)
This precondition will not be a problem in most use cases
(including SPP).
v2:
- add signed-off-by
- fix spelling error
v3:
- rebase on dpdk-next-virtio master
- change patch order
- fix subject and commit message
Itsuro Oda (4):
net/vhost: allocate interface name from heap
net/vhost: delay vhost driver setup
net/vhost: make secondary probe complete
net/vhost: remove an unused member
drivers/net/vhost/rte_eth_vhost.c | 152 +++++++++++++++++-------------
1 file changed, 88 insertions(+), 64 deletions(-)
--
2.17.0
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