As the 'restrict' keyword is recognized in C99, this patchset is to
add a wrapper defining '__rte_restrict' which can be supported by
all compilers. Then replace the existing 'restrict' and '__restrict'
in different vpmds, and optimize vhost/virtio with restricted pointer
aliasing for more aggressive loops vectorization.
The vhost/virtio optimization patches were benchmarked by running PVP
case on ThunderX2 platform and showed positive performance results.
v3:
1.Correct the compiling issue on GCC 4.8.5.
2.Squash the replacement patches and wrapper definition into one
patch.(suggested by David Marchand)
v2:
Add a common wrapper for restricted pointer aliasing to be supported
by all compilers.(suggested by Maxime Coquelin)
Joyce Kong (3):
lib/eal: add a common wrapper for restricted pointers
net/virtio: restrict pointer aliasing for NEON vpmd
lib/vhost: restrict pointer aliasing for packed vpmd
drivers/net/i40e/i40e_rxtx_vec_neon.c | 17 +-
drivers/net/mlx5/mlx5_rxtx.c | 208 +++++++++---------
drivers/net/virtio/virtio_rxtx_simple_neon.c | 5 +-
.../pthread_shim/pthread_shim.c | 12 +-
lib/librte_eal/include/rte_common.h | 10 +
lib/librte_vhost/virtio_net.c | 14 +-
6 files changed, 139 insertions(+), 127 deletions(-)
--
2.27.0
