From: Mina Almasry <[email protected]> Date: Sat, 22 Nov 2025 14:08:36 +0000
> From: YiFei Zhu <[email protected]> > > The logic is similar to idpf_rx_hwtstamp, but the data is exported > as a BPF kfunc instead of appended to an skb. > > A idpf_queue_has(PTP, rxq) condition is added to check the queue > supports PTP similar to idpf_rx_process_skb_fields. > > Cc: [email protected] > > Signed-off-by: YiFei Zhu <[email protected]> > Signed-off-by: Mina Almasry <[email protected]> > --- > drivers/net/ethernet/intel/idpf/xdp.c | 27 +++++++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > > diff --git a/drivers/net/ethernet/intel/idpf/xdp.c > b/drivers/net/ethernet/intel/idpf/xdp.c > index 21ce25b0567f..850389ca66b6 100644 > --- a/drivers/net/ethernet/intel/idpf/xdp.c > +++ b/drivers/net/ethernet/intel/idpf/xdp.c > @@ -2,6 +2,7 @@ > /* Copyright (C) 2025 Intel Corporation */ > > #include "idpf.h" > +#include "idpf_ptp.h" > #include "idpf_virtchnl.h" > #include "xdp.h" > #include "xsk.h" > @@ -369,6 +370,31 @@ int idpf_xdp_xmit(struct net_device *dev, int n, struct > xdp_frame **frames, > idpf_xdp_tx_finalize); > } > > +static int idpf_xdpmo_rx_timestamp(const struct xdp_md *ctx, u64 *timestamp) > +{ > + const struct virtchnl2_rx_flex_desc_adv_nic_3 *rx_desc; Sorry I know it's a late comment... Could you please you the optimized descriptor structure from idpf/xdp.h instead of the regular one? To be consistent with the Rx hash timestamp function and give more room for optimization. > + const struct libeth_xdp_buff *xdp = (typeof(xdp))ctx; > + const struct idpf_rx_queue *rxq; > + u64 cached_time, ts_ns; > + u32 ts_high; > + > + rx_desc = xdp->desc; > + rxq = libeth_xdp_buff_to_rq(xdp, typeof(*rxq), xdp_rxq); > + > + if (!idpf_queue_has(PTP, rxq)) > + return -ENODATA; > + if (!(rx_desc->ts_low & VIRTCHNL2_RX_FLEX_TSTAMP_VALID)) > + return -ENODATA; > + > + cached_time = READ_ONCE(rxq->cached_phc_time); > + > + ts_high = le32_to_cpu(rx_desc->ts_high); > + ts_ns = idpf_ptp_tstamp_extend_32b_to_64b(cached_time, ts_high); > + > + *timestamp = ts_ns; > + return 0; > +} > + > static int idpf_xdpmo_rx_hash(const struct xdp_md *ctx, u32 *hash, > enum xdp_rss_hash_type *rss_type) > { > @@ -392,6 +418,7 @@ static int idpf_xdpmo_rx_hash(const struct xdp_md *ctx, > u32 *hash, > } > > static const struct xdp_metadata_ops idpf_xdpmo = { > + .xmo_rx_timestamp = idpf_xdpmo_rx_timestamp, > .xmo_rx_hash = idpf_xdpmo_rx_hash, > }; > > > base-commit: e05021a829b834fecbd42b173e55382416571b2c Thanks, Olek
