Hi Eli, This series adds support for completion timestamp. In order to support this feature, several extended verbs were implemented (as instructed in libibverbs). ibv_query_device_ex was extended to support reading the hca_core_clock and timestamp mask. The init_context verb vendor specific data was changed so it'll conform to the verbs extensions form. This is done in order to easily extend the response data for passing the page offset of the free running clock register. This is mandatory for mapping this register to the user space. This mapping is done when libmlx5 initializes. In order to support CQ completion timestmap reporting, we implement ibv_create_cq_ex verb. This verb is used both for creating a CQ which supports timestamp and in order to state which fields should be returned via WC. Returning this data is done via implementing ibv_poll_cq_ex. We query the CQ requested wc_flags for every field the user has requested and populate it according to the carried network operation and WC status. Last but not least, ibv_poll_cq_ex was optimized in order to eliminate the if statements and or operations for common combinations of wc fields. This is done by inlining and using a custom poll_one_ex function for these fields. This series depends on '[PATCH libibverbs 0/5] Completion timestamping' and is rebased above '[PATCH libmlx5 v1 0/5] Support CQE Thanks, Matan Changes from V0: * Use mlx5_init_context in order to pass hca_core_clock_offset. Matan Barak (6): Add ibv_poll_cq_ex support Add timestmap support for ibv_poll_cq_ex Add ibv_create_cq_ex support Add ibv_query_values support Optimize poll_cq Add always_inline check configure.ac | 17 + src/cq.c | 959 ++++++++++++++++++++++++++++++++++++++++++++++++--------- src/mlx5-abi.h | 10 +- src/mlx5.c | 43 +++ src/mlx5.h | 42 ++- src/verbs.c | 115 ++++++- 6 files changed, 1037 insertions(+), 149 deletions(-) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
