v3: - adapted the new vhost ABI/API changes to tep_term example, to make
sure not break build at least.
- bumped the ABI version to 3
NOTE: I created a branch at dpdk.org [0] for more conveinient testing:
[0]: git://dpdk.org/next/dpdk-next-virtio for-testing
Every time we introduce a new feature to vhost, we are likely to break
ABI. Moreover, some cleanups (such as the one from Ilya to remove vec_buf
from vhost_virtqueue struct) also break ABI.
This patch set is meant to resolve above issue ultimately, by hiding
virtio_net structure (as well as few others) internaly, and export the
virtio_net dev strut to applications by a number, vid, like the way
kernel exposes an fd to user space.
Back to the patch set, the first part of this set makes some changes to
vhost example, vhost-pmd and vhost, bit by bit, to remove the dependence
to "virtio_net" struct. And then do the final change to make the current
APIs to adapt to using "vid".
After that, "vrtio_net_device_ops" is the only left open struct that an
application can acces, therefore, it's the only place that might introduce
potential ABI breakage in future for extension. Hence, I made few more
(5) space reservation, to make sure we will not break ABI for a long time,
and hopefuly, forever.
The last bit of this patch set is some cleanups, including the one from
Ilya.
v2: - exported ifname as well to fix a vhost-pmd issue reported by Rich
- separated the big patch that introduces several new APIs into some
small patches.
- updated release note
- updated version.map
Thanks.
--yliu
---
Ilya Maximets (1):
vhost: make buf vector for scatter Rx local
Yuanhan Liu (19):
vhost: declare backend with int type
vhost: set/reset dev flags internally
vhost: declare device fh as int
examples/vhost: make a copy of virtio device id
vhost: rename device fh to vid
vhost: get device by vid only
vhost: move vhost device ctx to cuse
vhost: introduce new API to export numa node
vhost: introduce new API to export number of queues
vhost: introduce new API to export ifname
vhost: introduce new API to export queue free entries
vhost: remove dependency on priv field
vhost: export vid as the only interface to applications
vhost: hide internal structs/macros/functions
vhost: remove unnecessary fields
vhost: remove virtio-net.h
vhost: reserve few more space for future extension
examples/tep_term: adapt to new vhost ABI/API changes
vhost: per device virtio net header len
doc/guides/rel_notes/release_16_07.rst | 11 +-
drivers/net/vhost/rte_eth_vhost.c | 79 ++++-----
examples/tep_termination/main.c | 83 +++++-----
examples/tep_termination/main.h | 5 +-
examples/tep_termination/vxlan_setup.c | 20 +--
examples/tep_termination/vxlan_setup.h | 6 +-
examples/vhost/main.c | 116 +++++++------
examples/vhost/main.h | 3 +-
lib/librte_vhost/Makefile | 2 +-
lib/librte_vhost/rte_vhost_version.map | 10 ++
lib/librte_vhost/rte_virtio_net.h | 223 +++++++------------------
lib/librte_vhost/vhost-net.h | 201 ++++++++++++++++++----
lib/librte_vhost/vhost_cuse/vhost-net-cdev.c | 83 +++++-----
lib/librte_vhost/vhost_cuse/virtio-net-cdev.c | 30 ++--
lib/librte_vhost/vhost_cuse/virtio-net-cdev.h | 12 +-
lib/librte_vhost/vhost_rxtx.c | 133 ++++++++-------
lib/librte_vhost/vhost_user/vhost-net-user.c | 53 +++---
lib/librte_vhost/vhost_user/vhost-net-user.h | 2 +
lib/librte_vhost/vhost_user/virtio-net-user.c | 64 +++----
lib/librte_vhost/vhost_user/virtio-net-user.h | 18 +-
lib/librte_vhost/virtio-net.c | 229 +++++++++++++++++---------
lib/librte_vhost/virtio-net.h | 43 -----
22 files changed, 752 insertions(+), 674 deletions(-)
delete mode 100644 lib/librte_vhost/virtio-net.h
--
1.9.0
