Since the ConnectX-6DX the send scheduling capability is provided. An application can register the dynamic field and dynamic flags in mbuf for timestamp and specify the desired moment of time the packet should sent.
The send scheduling feature over ConnectX-6DX uses the complicated infrastructure with reference Clock Queue and inter-queue synchronizing operations. Since ConnectX-7 the new wait descriptor format is introduced where the timestamp can be promoted to hardware directly. The patchset adds support for this new hardware option in PMD. Signed-off-by: Viacheslav Ovsiienko <viachesl...@nvidia.com> v1: http://patches.dpdk.org/project/dpdk/cover/20220214085655.22648-1-viachesl...@nvidia.com/ v2: http://patches.dpdk.org/project/dpdk/cover/20220222102648.4662-1-viachesl...@nvidia.com/ - fix compilation issues - rebase v3: documentation patch rearranging Viacheslav Ovsiienko (3): common/mlx5: add send on time capability check net/mlx5: configure Tx queue with send on time offload net/mlx5: add wait on time support in Tx datapath doc/guides/nics/mlx5.rst | 5 ++ doc/guides/rel_notes/release_22_03.rst | 6 +++ drivers/common/mlx5/mlx5_devx_cmds.c | 1 + drivers/common/mlx5/mlx5_devx_cmds.h | 1 + drivers/common/mlx5/mlx5_prm.h | 27 +++++++++- drivers/net/mlx5/linux/mlx5_verbs.c | 4 ++ drivers/net/mlx5/mlx5.h | 3 ++ drivers/net/mlx5/mlx5_devx.c | 2 + drivers/net/mlx5/mlx5_tx.h | 75 +++++++++++++++++++++++--- drivers/net/mlx5/mlx5_txq.c | 18 ++++++- 10 files changed, 131 insertions(+), 11 deletions(-) -- 2.18.1
