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@google.com Signed-off-by: Song Yoong Siang yoong.siang.song@intel.com
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-timedoc: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).