Flow with meter will split to three subflows, the prefix subflow with meter action do the color, the meter subflow filter the packets, the suffix subflow do all the left actions for packets pass the filter. Both the color and the subflow match between prefix and suffix use the register to store the tag.
For some of the NICs with meter color register share capability, it only uses 8 LSB of the register for color, the left 24 MSB can be used for flow id match between meter prefix subflow and suffix subflow. Currently, one entire register is allocated for flow matching which causes the NICs with limited registers don't have enough register for other matching. Add the meter color share capability checking to fix lacking of registers issue. Suanming Mou (2): net/mlx5: support maximum id in id allocate net/mlx5: fix incorrect register usage in meter drivers/net/mlx5/mlx5.c | 19 +++++++++++---- drivers/net/mlx5/mlx5.h | 4 ++++ drivers/net/mlx5/mlx5_devx_cmds.c | 2 ++ drivers/net/mlx5/mlx5_flow.c | 49 ++++++++++++++++++++++++--------------- drivers/net/mlx5/mlx5_flow.h | 2 +- drivers/net/mlx5/mlx5_flow_dv.c | 4 ++-- drivers/net/mlx5/mlx5_prm.h | 7 +++++- 7 files changed, 60 insertions(+), 27 deletions(-) -- 1.8.3.1
