v3: - quite few minor changes, including using likely/unlikely
when possible.
- Added a new patch 8 to avoid desc dead loop chain
The first 3 patches refactor 3 major functions at vhost_rxtx.c.
It simplifies the code logic, making it more readable. OTOH, it
reduces binary code size, due to a lot of duplicate code are
removed, as well as some huge inline functions are diminished.
Patch 4 gets rid of the rte_memcpy for virtio_hdr copy, which
nearly saves 12K bytes of binary code size!
Patch 5 removes "unlikely" for VIRTIO_NET_F_MRG_RXBUF detection.
Patch 6, 7 and 8 do some sanity check for two desc fields, to make
vhost robust and be protected from malicious guest or abnormal use
cases.
---
Yuanhan Liu (8):
vhost: refactor rte_vhost_dequeue_burst
vhost: refactor virtio_dev_rx
vhost: refactor virtio_dev_merge_rx
vhost: do not use rte_memcpy for virtio_hdr copy
vhost: don't use unlikely for VIRTIO_NET_F_MRG_RXBUF detection
vhost: do sanity check for desc->len
vhost: do sanity check for desc->next against with vq->size
vhost: avoid dead loop chain.
lib/librte_vhost/vhost_rxtx.c | 1027 ++++++++++++++++++-----------------------
1 file changed, 453 insertions(+), 574 deletions(-)
--
1.9.0
