On 8/13/2024 5:54 AM, Mateusz Polchlopek wrote:
Initially, during VF creation it registers the PTP clock in the system and negotiates with PF it's capabilities. In the meantime the PF enables the Flexible Descriptor for VF. Only this type of descriptor allows to receive Rx timestamps. Enabling virtual clock would be possible, though it would probably perform poorly due to the lack of direct time access. Enable timestamping should be done using userspace tools, e.g. hwstamp_ctl -i $VF -r 14 In order to report the timestamps to userspace, the VF extends timestamp to 40b. To support this feature the flexible descriptors and PTP part in iavf driver have been introduced.
Can you check that each patch compiles cleanly? Some of these are not (especially w/clang).
Also, there's some scattered checkpatch issues if you could run and correct the applicable ones.
Thanks, Tony
--- v9: - another big refactor of code, again the list is too long to describe each change. Only patch1 and patch12 has not been changed AFAIR. Please take a look on v8 and changes requests from Alexander L. (in short - fixed structs paddings, aligns, optimized rx hot path, renamed few structs, added "const" keyword where applicable, added kdoc comments to newly introduced structs and defines, removed unnecessary casts, simplified few functions and few more). v8: - big refactor to make code more optimised (too many changes to list them here, please take a look on v7 patch9 and comments from Alexander L) - patch 11. Because of that I decided to remove all gathered RB tags. - changed newly introduced spinlock aq_cmd_lock to mutex type to avoid deadlock - patch 7 - adjusted function iavf_is_descriptor_done() to extract fields from descriptor in a new way - patch 12 - changed (and removed unused) defines that describe specific fields and bits in descriptor https://lore.kernel.org/netdev/[email protected]/ v7: - changed .ndo_eth_ioctl to .ndo_hwtstamp_get and .ndo_hwtstamp_set (according to Kuba's suggestion) - patch 11 https://lore.kernel.org/netdev/[email protected]/ v6: - reordered tags - added RB tags where applicable - removed redundant instructions in ifs - patch 4 and patch 5 - changed teardown to LIFO, adapter->ptp.initialized = false moved to the top of function - patch 6 - changed cpu-endianess for testing - patch 9 - aligned to libeth changes - patch 9 https://lore.kernel.org/netdev/[email protected]/ v5: - fixed all new issues generated by this series in kernel-doc https://lore.kernel.org/netdev/[email protected]/ v4: - fixed duplicated argument in iavf_virtchnl.c reported by coccicheck https://lore.kernel.org/netdev/[email protected]/ v3: - added RB in commit 6 - removed inline keyword in commit 9 - fixed sparse issues in commit 9 and commit 10 - used GENMASK_ULL when possible in commit 9 https://lore.kernel.org/netdev/[email protected]/ v2: - fixed warning related to wrong specifier to dev_err_once in commit 7 - fixed warnings related to unused variables in commit 9 https://lore.kernel.org/netdev/[email protected]/ v1: - initial series https://lore.kernel.org/netdev/[email protected]/ --- Jacob Keller (10): virtchnl: add support for enabling PTP on iAVF virtchnl: add enumeration for the rxdid format iavf: add support for negotiating flexible RXDID format iavf: negotiate PTP capabilities iavf: add initial framework for registering PTP clock iavf: add support for indirect access to PHC time iavf: periodically cache PHC time iavf: refactor iavf_clean_rx_irq to support legacy and flex descriptors iavf: handle set and get timestamps ops iavf: add support for Rx timestamps to hotpath Mateusz Polchlopek (3): libeth: move idpf_rx_csum_decoded and idpf_rx_extracted iavf: define Rx descriptors as qwords iavf: Implement checking DD desc field Simei Su (1): ice: support Rx timestamp on flex descriptor drivers/net/ethernet/intel/iavf/Makefile | 2 + drivers/net/ethernet/intel/iavf/iavf.h | 35 +- drivers/net/ethernet/intel/iavf/iavf_main.c | 228 ++++++++- drivers/net/ethernet/intel/iavf/iavf_ptp.c | 481 ++++++++++++++++++ drivers/net/ethernet/intel/iavf/iavf_ptp.h | 26 + drivers/net/ethernet/intel/iavf/iavf_trace.h | 6 +- drivers/net/ethernet/intel/iavf/iavf_txrx.c | 425 ++++++++++++---- drivers/net/ethernet/intel/iavf/iavf_txrx.h | 22 +- drivers/net/ethernet/intel/iavf/iavf_type.h | 272 +++++----- drivers/net/ethernet/intel/iavf/iavf_types.h | 36 ++ .../net/ethernet/intel/iavf/iavf_virtchnl.c | 223 ++++++++ drivers/net/ethernet/intel/ice/ice_base.c | 3 - drivers/net/ethernet/intel/ice/ice_lib.c | 5 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 4 +- drivers/net/ethernet/intel/ice/ice_ptp.h | 8 + drivers/net/ethernet/intel/ice/ice_vf_lib.h | 2 + drivers/net/ethernet/intel/ice/ice_virtchnl.c | 96 +++- drivers/net/ethernet/intel/ice/ice_virtchnl.h | 6 + .../intel/ice/ice_virtchnl_allowlist.c | 7 + .../ethernet/intel/idpf/idpf_singleq_txrx.c | 51 +- drivers/net/ethernet/intel/idpf/idpf_txrx.c | 16 +- drivers/net/ethernet/intel/idpf/idpf_txrx.h | 19 - include/linux/avf/virtchnl.h | 131 ++++- include/net/libeth/rx.h | 42 ++ 24 files changed, 1810 insertions(+), 336 deletions(-) create mode 100644 drivers/net/ethernet/intel/iavf/iavf_ptp.c create mode 100644 drivers/net/ethernet/intel/iavf/iavf_ptp.h create mode 100644 drivers/net/ethernet/intel/iavf/iavf_types.h base-commit: d1815992133ebcc6007009645571f322f4bc7c44
