sxgbe_rx_refill(9)
π sxgbe_rx_refill(9) β the Kernel API Manual glow-up β¨
okay so real talk, bestie, this is a page from the Kernel API Manual (section 9, the kernel-functions girlies π), and it's all about one tiny but lowkey essential function. let's get into it π
πΈ NAME πΈ
sxgbe_rx_refill β literally refills the used skb preallocated buffers π«Ά
β¨ SYNOPSIS β¨
void sxgbe_rx_refill (struct sxgbe_priv_data *priv );
that's it. one arg. no return value. she's simple, she's iconic π
π¦ ARGUMENTS π¦
privβ the driver private structure π like, the whole personality of the driver in one struct. you hand her over and she knows what to do.
π DESCRIPTION π
so what's the vibe here? this function reallocates the skb for the reception process, and the reception process is based on zero-copy. that's the whole plot. not me explaining a kernel function in one sentence and then just staring at you π but fr fr, that's what the page says, and we do not invent lore around here.
β SEE ALSO β
the obligatory group chat of related functions, no cap, every single one of them:
- Kernel file
./drivers/net/ethernet/samsung/sxgbe/sxgbe_main.cπ 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)init_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(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)
like, that's the whole friend group right there. go say hi π«Ά
ngl bestie, that's the entire page. it's short, it's sweet, it's giving "small function, big responsibilities" ππ don't sleep on the buffer refill, okay?
and that's a wrap, mwah π β this little love letter to the kernel comes from ./drivers/net/ethernet/samsung... and is dated October 2026, page sxgbe_rx_refill(9), signed, sealed, slayed πΈβ¨π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms