[dpdk-dev] [PATCH v4 0/2] net/virtio-user: add packed vq support
Jens Freimann
jfreimann at redhat.com
Fri Jan 11 10:39:27 CET 2019
Patch 1 fixes a bug in virtio_pq_send_command(). When we wait for
a descriptor to be marked as used we need to consider that the ring
might have wrapped and use the previous wrap counter.
Patch 2 reverts the patch to error out when cq is used with packed vq and
add support for packed virtqueues in control virtqueue code.
v3->v4:
* it's enough to add to add packed vq feature bit to
unsupported_features if packed_vq=0, no need to explicitly add
it to device_features (Tiwei)
v2->v3:
* squash revert patch into patch 2
* add new patch 1 to fix a bug in driver code
* fix wrap handling code in virtio_user_handle_cq_packed
* in v2 I was using wrap counters and indexes from shared virtqueue,
fixed this and added wrap counters and used index to virtio_user code
* tested wrap around of ring
v1->v2:
* split into two patches
* handle ring wrap correctly
* add to unsupported_features when packed_vq is 0
Jens Freimann (2):
net/virtio: check head desc with correct wrap counter
net/virtio-user: ctrl vq support for packed
drivers/net/virtio/virtio_ethdev.c | 11 +-
.../net/virtio/virtio_user/virtio_user_dev.c | 102 ++++++++++++++++--
.../net/virtio/virtio_user/virtio_user_dev.h | 15 ++-
drivers/net/virtio/virtio_user_ethdev.c | 56 +++++++++-
drivers/net/virtio/virtqueue.h | 10 +-
5 files changed, 171 insertions(+), 23 deletions(-)
--
2.17.2
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