[PATCH v14 0/3] net/idpf: enable AVX2 for split queue Rx/Tx

[Shaiq Wani <shaiq.wani@intel.com>]

In case some CPUs don't support AVX512. Enable AVX2 for them to
get better per-core performance.

In the single queue model, the same descriptor queue is used by SW
to post descriptors to the device and used by device to report completed
descriptors to SW. While as the split queue model separates them into
different queues for parallel processing and improved performance.

v14:
*rebased on latest next-net-intel.

v13:
*reworked the recv_pkts() function.
- the driver datapath can now receive any number
- of packets available not just multiples of 4.

v12:
*Addressed AI generated comments.
*Rebased on latest next-net-intel tree.
*Included a release note entry.


v11:
*Fixed indentation issues.

v10:
*Changed desc reading style in Rx path.

v9:
*Some minor fixes.

v8:
*Reworked the receive func to avoid race conditions in Rx path.
*Removed unnecessary compiler barriers.

v7:
*Removed (char) casts, ifdef block as suggested.
*Fixed indentation, line wrapping.
*Did blind write of data to avoid branching.
*changed desc building and writing  order for Tx.

v6:
*used single load/store in splitq_recv_pkts function.
*removed x86-specific intrinsics from common code.

v5:
*Fixed CI errors.
*Used defined constants instead of numbers.

v4:
*moved splitq_rearm_common to a common location.
*reduced duplication of code.
*fixed splitq_recv_pkts function.

v3:
*Fixed some indentation issues.
*Collapsed wrapper and core function into one.
*Fixed some pointer casting and naming inconsistency issues.

v2:
*Fixed CI build related issues.
*Rebased on top of idpf/cpfl rx path selection simplication patch.


Shaiq Wani (3):
  net/idpf: enable AVX2 for split queue Rx
  net/idpf: enable AVX2 for split queue Tx
  doc: add note on unsupported completion queue sharing

 doc/guides/nics/idpf.rst                      |   5 +
 doc/guides/rel_notes/release_26_03.rst        |   4 +
 drivers/net/intel/idpf/idpf_common_device.h   |   2 +
 drivers/net/intel/idpf/idpf_common_rxtx.c     |  67 ++++
 drivers/net/intel/idpf/idpf_common_rxtx.h     |   8 +
 .../net/intel/idpf/idpf_common_rxtx_avx2.c    | 324 ++++++++++++++++++
 .../net/intel/idpf/idpf_common_rxtx_avx512.c  |  56 ---
 7 files changed, 410 insertions(+), 56 deletions(-)

-- 
2.34.1