nfp_net_rx_ring_bufs_free(9)

✨ nfp_net_rx_ring_bufs_free(9) ✨

okay so bestie, welcome to the Kernel API Manual 💅 this one's a little function with a big job and honestly it does exactly what it says on the tin — it's nfp_net_rx_ring_bufs_free, and it's here to clean up the RX ring. let's get into it 🧚

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🎀 NAME 🎀

nfp_net_rx_ring_bufs_free — frees any buffers that are currently hanging out on the RX ring 🫶 like, they're done, they're being sent home, bye 💖

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🌸 SYNOPSIS 🌸

void nfp_net_rx_ring_bufs_free (struct nfp_net_dp *dp , struct
       nfp_net_rx_ring *rx_ring );

no return value, it's a void girlie — it just does the thing and dips ✨

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🦋 ARGUMENTS 🦋

• dp — the NFP Net data path struct 👑 this is your main character struct, the big picture.
• rx_ring — the RX ring you wanna remove buffers from 🎀 like, the specific one, pls be specific.

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💜 DESCRIPTION 💜

so here's the vibe check: this function assumes the device is stopped and that the buffers are sitting in the [0, ring->cnt - 1) entries 😌 no cap, that's the arrangement it expects.

and then — this part matters bestie — once the device is disabled, you must call nfp_net_rx_ring_reset to restore the required ring geometry. like, not optional, not a suggestion, it's giving required-esque 😭 don't skip it fr fr.

⚠️ reminder: device stopped ✅ buffers in [0, ring->cnt - 1) ✅ and after disabling, call nfp_net_rx_ring_reset to restore ring geometry — that's the whole deal 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/netronome/nfp/nfp_net_dp.c 📁
• nfp_net_rx_alloc_one(9)
• nfp_net_tx_ring_init(9)
• nfp_net_rx_ring_init(9)
• nfp_net_rx_ring_reset(9)
• nfp_net_rx_ring_bufs_alloc(9)
• nfp_net_rx_ring_free(9)
• nfp_net_rx_ring_alloc(9)

like, the whole little friend group of ring functions, go read them all, iykyk 💅✨

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and that's the page bb 🍓 this lil icon came from ./drivers/net/ethernet/netrono... and it's dated October 2026 — mwah, slay, go free those buffers responsibly 🔥👑🦋