init_rx_ring(9)

💅 init_rx_ring(9) — like, the RX descriptor ring gets its whole setup moment

Okay bestie, welcome to the Kernel API Manual ✨ this one is init_rx_ring, and it's literally the function that gets your RX descriptor ring cute and ready. It's giving "getting ready in the group chat before the party" energy 🎀

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🌸 NAME 🌸

init_rx_ring — init the RX descriptor ring 💖

Yeah. That's the whole vibe. It inits the RX descriptor ring. Iconic, concise, no notes 👑

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✨ SYNOPSIS ✨

int init_rx_ring (struct net_device *dev , u8 queue_no , struct
sxgbe_rx_queue *rx_ring , int rx_rsize );

Like, look at that signature. Four whole parameters. She's thriving 🦋

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🫶 ARGUMENTS 🫶

• dev — the net device structure, aka the main character of this whole story 💅
• queue_no — the queue, bestie. Which one we're talking about 🎀
• rx_ring — the ring that's about to be initialised. That's her moment 🌟
• rx_rsize — the ring size, iykyk 📏

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🔥 DESCRIPTION 🔥

So what does she actually do? This function initializes the DMA RX descriptor. That's it, that's the whole thing, and honestly? She ate 💀✨

No cap — the DMA RX descriptor gets initialized. Periodt. 💜

ngl this is a short one, so if you were hoping for a five-paragraph lore drop, this is not that page 🙈 but the facts are all here, fr fr.

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👑 SEE ALSO 👑

Bestie, the cross-reference list here is long and we are NOT skipping a single one of them, because every link deserves its spotlight 🌈

The kernel file to go peek at:

./drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c

And the whole friend group:

• sxgbe_verify_args(9)
• sxgbe_eee_ctrl_timer(9)
• sxgbe_eee_init(9)
• sxgbe_clk_csr_set(9)
• sxgbe_adjust_link(9)
• sxgbe_init_phy(9)
• sxgbe_clear_descriptors(9)
• sxgbe_free_rx_buffers(9)
• init_tx_ring(9)
• free_rx_ring(9)
• free_tx_ring(9)
• init_dma_desc_rings(9)
• sxgbe_mtl_operation_mode(9)
• sxgbe_tx_queue_clean(9)
• sxgbe_tx_all_clean(9)
• sxgbe_restart_tx_queue(9)
• sxgbe_reset_all_tx_queues(9)
• sxgbe_get_hw_features(9)
• sxgbe_check_ether_addr(9)
• sxgbe_init_dma_engine(9)
• sxgbe_init_mtl_engine(9)
• sxgbe_disable_mtl_engine(9)
• sxgbe_tx_timer(9)
• sxgbe_tx_init_coalesce(9)
• sxgbe_open(9)
• sxgbe_release(9)
• sxgbe_xmit(9)
• sxgbe_rx_refill(9)
• sxgbe_rx(9)
• sxgbe_poll(9)
• sxgbe_tx_timeout(9)
• sxgbe_common_interrupt(9)
• sxgbe_tx_interrupt(9)
• sxgbe_rx_interrupt(9)
• sxgbe_set_rx_mode(9)
• sxgbe_poll_controller(9)
• sxgbe_hw_init(9)
• sxgbe_drv_probe(9)
• sxgbe_drv_remove(9)

Thirty-eight of them. Not me counting. Okay maybe I counted 🫶

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And that's the page, bestie! This lil beauty comes to you from ./drivers/net/ethernet/samsung... and it's stamped October 2026 — so like, mark your calendar, mwah 💋✨