On Friday, December 1, 2023 4:29 AM, Willem de Bruijn wrote: >Song Yoong Siang wrote: >> This patch extends the XDP Tx metadata framework to include Time-Based >> Scheduling (TBS) support where the NIC will schedule a packet for >> transmission at a pre-determined time called launch time. The value of >> launch time is communicated from user space to Ethernet driver via >> launch_time field of struct xsk_tx_metadata. >> >> Suggested-by: Stanislav Fomichev <sdf@xxxxxxxxxx> >> Signed-off-by: Song Yoong Siang <yoong.siang.song@xxxxxxxxx> >> --- >> Documentation/netlink/specs/netdev.yaml | 4 ++++ >> Documentation/networking/xsk-tx-metadata.rst | 5 +++++ >> include/net/xdp_sock.h | 10 ++++++++++ >> include/net/xdp_sock_drv.h | 1 + >> include/uapi/linux/if_xdp.h | 9 +++++++++ >> include/uapi/linux/netdev.h | 3 +++ >> net/core/netdev-genl.c | 2 ++ >> net/xdp/xsk.c | 3 +++ >> tools/include/uapi/linux/if_xdp.h | 9 +++++++++ >> tools/include/uapi/linux/netdev.h | 3 +++ >> tools/net/ynl/generated/netdev-user.c | 1 + >> 11 files changed, 50 insertions(+) >> >> diff --git a/Documentation/netlink/specs/netdev.yaml >b/Documentation/netlink/specs/netdev.yaml >> index 00439bcbd2e3..a602776bbfb4 100644 >> --- a/Documentation/netlink/specs/netdev.yaml >> +++ b/Documentation/netlink/specs/netdev.yaml >> @@ -66,6 +66,10 @@ definitions: >> name: tx-checksum >> doc: >> L3 checksum HW offload is supported by the driver. >> + - >> + name: launch-time >> + doc: >> + HW Time-Based Scheduling (TBS) is supported by the driver. > >Can we avoid introducing another term? We already have too many: >launchtime, earliest delivery time (EDT), SO_TXTIME, >pacing offload, earliest txtime first (ETF). > Sure. I will change TBS to ETF in my V2 so that it is aligned with etf command in tc application.
