ice_xmit_xdp_tx_zc(9)

💅 ice_xmit_xdp_tx_zc(9) 💅

okay so bestie, welcome to the Kernel API Manual page for ice_xmit_xdp_tx_zc — yes that's a mouthful, yes it's iconic, no you don't have to say it out loud. sit down, hydrate, and let's get into it 🫶

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✨ NAME ✨

ice_xmit_xdp_tx_zc — the AF_XDP ZC handler for XDP_TX, and honestly? she's kind of a big deal 🔥

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🌸 SYNOPSIS 🌸

int ice_xmit_xdp_tx_zc (struct xdp_buff *xdp , struct ice_tx_ring
*xdp_ring , struct xsk_buff_pool *xsk_pool );

three pointers in, one int out. that's the whole vibe check ✨

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🦋 ARGUMENTS 🦋

• xdp — the XDP buffer you're gonna xmit. she's the star of the show, no cap 👑
• xdp_ring — the XDP ring you're producing a descriptor onto. this is where the magic gets written down 📝
• xsk_pool — the AF_XDP buffer pool pointer. the supply closet, basically 🎀

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💖 DESCRIPTION 💖

okay so literally the first thing to know: this function works directly on xdp_buff, and there's no need to convert it to xdp_frame. zero conversion arc, we skip the whole plotline, it's giving efficiency 💅

the xdp_buff pointer gets stored into ice_tx_buf so that the cleaning side will be able to xsk_buff_free it later. yes, that's the plan, that's the setup, that's the whole foreshadowing situation 🧚

as for what she returns — it's a little choose-your-own-adventure:

• ICE_XDP_TX — slay, a desc was successfully produced ✅
• ICE_XDP_CONSUMED — there was not enough space on the XDP ring 😭 no room, no desc, we move on

bestie please clock this: those two return values are the only two outcomes described here. don't go inventing a third one, i'm begging 🙈

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🌈 SEE ALSO 🌈

the kernel file herself lives at ./drivers/net/ethernet/intel/ice/ice_xsk.c — go say hi 🫶

and the whole friend group, in order, no cap:

• ice_qvec_toggle_napi(9)
• ice_qvec_dis_irq(9)
• ice_qvec_cfg_msix(9)
• ice_qvec_ena_irq(9)
• ice_xsk_pool_disable(9)
• ice_xsk_pool_enable(9)
• ice_realloc_rx_xdp_bufs(9)
• ice_xsk_pool_setup(9)
• ice_fill_rx_descs(9)
• __ice_alloc_rx_bufs_zc(9)
• ice_alloc_rx_bufs_zc(9)
• ice_clean_xdp_irq_zc(9)
• ice_run_xdp_zc(9)
• ice_clean_rx_irq_zc(9)
• ice_xmit_pkt(9)
• ice_xmit_pkt_batch(9)
• ice_fill_tx_hw_ring(9)
• ice_xmit_zc(9)
• ice_xsk_wakeup(9)
• ice_xsk_any_rx_ring_ena(9)
• ice_xsk_clean_rx_ring(9)
• ice_xsk_clean_xdp_ring(9)

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and that's the page!! 💜 this lil masterpiece comes to you straight from ./drivers/net/ethernet/intel/ice, dated October 2026 — yes, from the future, we stay ahead of schedule ✨ mwah, go read the other pages, ily, bye 🎀💖