On 12/1/23 07:24, Song Yoong Siang wrote:
This patch enables txtime support to XDP zero copy via XDP Tx metadata framework.
Signed-off-by: Song Yoong Siangyoong.siang.song@intel.com
drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 ++ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 13 +++++++++++++ 2 files changed, 15 insertions(+)
I think we need to see other drivers using this new feature to evaluate if API is sane.
I suggest implementing this for igc driver (chip i225) and also for igb (i210 chip) that both support this kind of LaunchTime feature in HW.
The API and stmmac driver takes a u64 as time. I'm wondering how this applies to i210 that[1] have 25-bit for LaunchTime (with 32 nanosec granularity) limiting LaunchTime max 0.5 second into the future. And i225 that [1] have 30-bit max 1 second into the future.
[1] https://github.com/xdp-project/xdp-project/blob/master/areas/tsn/code01_foll...