This patch set adds support for matching optional fields of GRE header. The optional fields are checksum, key and sequence number. Currently, key field is supported with pattern gre_key item '.. / gre / gre_key value is xx / ..' with field gre_key in misc, but misc does not support matching of checksum and sequence number of GRE. To support matching of checksum and sequence number fields in GRE, rdma-core needs the capbility of misc5 and support tunnel_header 0-3. Since tunnel_header1 is used to match checksum, tunnel_header2 for key and tunnel_header3 for sequence by hardware. If checksum and sequence number not present in the pattern, use misc as before for the matching. Application can still use gre_key item 'gre_key value is xx' for key matching, the effect is the same if use 'gre_option key is xx'. If using gre_option item, the flags in gre item should be correspondingly set. For example, if using gre_option to match checksum, the c_bit should be set '1' (.. / gre c_bit is 1 / gre_option checksum is xx / ..).
Sean Zhang (4): lib: add optional fields in GRE header ethdev: support GRE optional fields app/testpmd: add gre_option item command net/mlx5: support matching optional fields of GRE app/test-pmd/cmdline_flow.c | 59 +++++++++++ doc/guides/prog_guide/rte_flow.rst | 17 ++++ doc/guides/testpmd_app_ug/testpmd_funcs.rst | 6 ++ drivers/common/mlx5/mlx5_devx_cmds.c | 3 + drivers/net/mlx5/linux/mlx5_os.c | 2 + drivers/net/mlx5/mlx5.h | 1 + drivers/net/mlx5/mlx5_flow.c | 106 ++++++++++++++++++++ drivers/net/mlx5/mlx5_flow.h | 6 ++ drivers/net/mlx5/mlx5_flow_dv.c | 146 ++++++++++++++++++++++++++++ lib/ethdev/rte_flow.c | 1 + lib/ethdev/rte_flow.h | 19 ++++ lib/net/rte_gre.h | 21 ++++ 12 files changed, 387 insertions(+) -- 1.8.3.1
