The AVX512 packed ring datapath selection was only done
at build time, but it should also be checked at runtime
that the CPU supports it.
This patch add a CPU flags check so that non-vectorized
path is selected at runtime if AVX512 is not supported.
Also in meson build enable vectorization only for relevant file, not for
all driver.
Fixes: ccb10995c2 ("net/virtio: add election for vectorized path")
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Optimize packed ring Rx path with SIMD instructions. Solution of
optimization is pretty like vhost, is that split path into batch and
single functions. Batch function is further optimized by AVX512
instructions.
Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Remove setting ALLOW_EXPERIMENTAL_API individually for each Makefile and
meson.build. Instead, enable ALLOW_EXPERIMENTAL_API flag across app, lib
and drivers.
This changes reduces the clutter across the project while still
maintaining the functionality of ALLOW_EXPERIMENTAL_API i.e. warning
external applications about experimental API usage.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
The directories ppc_64 are renamed as ppc in
- config/
- lib/librte_eal/common/arch/
- lib/librte_eal/common/include/arch/
The EAL directories are not really renamed, but symbolically linked,
because they will be moved with their new name in the next commits.
If ppc_32 needs to be supported, it can be in the same directory.
The arch directories arm and x86 are already covering both 32 and 64-bit
sub-architectures.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: David Christensen <drc@linux.vnet.ibm.com>
Acked-by: David Marchand <david.marchand@redhat.com>
Added the file virtio_rxtx_simple_altivec.c which implements Altivec
code for the virtio vectorized RX functions. Updated the various build
files.
Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Define variables for "is_linux", "is_freebsd" and "is_windows"
to make the code shorter for comparisons and more readable.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Luca Boccassi <bluca@debian.org>
