ENUM NETDEV_XDP_ACT(9)

✨ enum netdev_xdp_act(9) ✨

okay bestie, so this is a page from the Kernel API Manual — we're talking about enum netdev_xdp_act, which is literally the enum that tells you which XDP features a netdev supports 💅 it's giving "feature flag checklist for your network driver" and honestly it's iconic.

🌸 SYNOPSIS 🌸

enum netdev_xdp_act {
    NETDEV_XDP_ACT_BASIC ,
    NETDEV_XDP_ACT_REDIRECT ,
    NETDEV_XDP_ACT_NDO_XMIT ,
    NETDEV_XDP_ACT_XSK_ZEROCOPY ,
    NETDEV_XDP_ACT_HW_OFFLOAD ,
    NETDEV_XDP_ACT_RX_SG ,
    NETDEV_XDP_ACT_NDO_XMIT_SG

};

no cap, that's the whole roster 👑

🎀 Constants 🎀

• NETDEV_XDP_ACT_BASIC — the starter pack 💖 these are the XDP features that literally every driver supports: XDP_ABORTED, XDP_DROP, XDP_PASS, XDP_TX. if your driver can't do these… bestie, what is it even doing.
• NETDEV_XDP_ACT_REDIRECT — this one means the netdev supports XDP_REDIRECT 🦋 (yeah, the packet packet goes elsewhere now).
• NETDEV_XDP_ACT_NDO_XMIT — tells you whether the netdev implements the ndo_xdp_xmit callback 🔥 so like, does it actually have the transmit hook or not.
• NETDEV_XDP_ACT_XSK_ZEROCOPY — the flex one ✨ this says the netdev supports AF_XDP in zero copy mode. zero copies, zero problems, we love to see it.
• NETDEV_XDP_ACT_HW_OFFLOAD — informs you if the netdev supports XDP hw offloading 👑 hardware doing the work so the CPU doesn't have to? main character energy fr.
• NETDEV_XDP_ACT_RX_SG — tells you if the netdev implements non-linear XDP buffer support in the driver napi callback 🌈 (scatter-gather at receive time, iykyk).
• NETDEV_XDP_ACT_NDO_XMIT_SG — and this one's the sibling of the last: informs you if the netdev implements non-linear XDP buffer support in the ndo_xdp_xmit callback 💜 transmit side this time.

🫶 SEE ALSO 🫶

• Kernel file ./tools/include/uapi/linux/netdev.h enum
• netdev_xdp_rx_metadata(9)
• enum netdev_xsk_flags(9)

lowkey reminder bestie: this page lives under ./tools/include/uapi/linux and the manual is dated October 2026 — so if you're citing it in a group chat, that's the receipt 💅

k byeee, go read the kernel headers, they're literally obsessed with you 🧚💖