velocity_rx_csum(9)

💅 velocity_rx_csum(9) — Kernel API Manual, but make it make sense

okay so bestie, we're in the kernel API manual (9 section, driver-land) and today's main character is velocity_rx_csum. she's a checksum girlie. let's get into it ✨

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🎀 NAME 🎀

velocity_rx_csum — checksum process. that's the whole vibe. checksum. processing. slay.

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🌸 SYNOPSIS 🌸

void velocity_rx_csum (struct rx_desc *rd , struct sk_buff *skb );

no return value, no drama — she just does the thing. 💅

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🦋 ARGUMENTS 🦋

• rd — the receive packet descriptor 🫶 like, the lil receipt for the packet that just showed up.
• skb — the network layer packet buffer ⭐ the actual packet's home, the main character container.

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💖 DESCRIPTION 💖

so here's the tea: velocity_rx_csum goes through the status bits of the received packet and figures out whether the checksum was computed and verified by the hardware 👑

that's it. that's the whole job. she reads the flags the NIC left behind and tells you if hardware already handled the checksum math — no cap, that's genuinely all she does 😭

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🔥 SEE ALSO 🔥

the whole friend group, fr fr — no one's getting left out of this group chat 💜

• the kernel file: ./drivers/net/ethernet/via/via-velocity.c 📁 (that's where she lives, iykyk)
• mac_get_cam_mask(9)
• mac_set_cam_mask(9)
• mac_set_cam(9)
• mac_wol_reset(9)
• get_chip_name(9)
• velocity_set_int_opt(9)
• velocity_set_bool_opt(9)
• velocity_get_options(9)
• velocity_init_cam_filter(9)
• velocity_rx_reset(9)
• velocity_get_opt_media_mode(9)
• safe_disable_mii_autopoll(9)
• enable_mii_autopoll(9)
• velocity_mii_read(9)
• mii_check_media_mode(9)
• velocity_mii_write(9)
• set_mii_flow_control(9)
• mii_set_auto_on(9)
• velocity_set_media_mode(9)
• velocity_print_link_status(9)
• enable_flow_control_ability(9)
• velocity_soft_reset(9)
• velocity_set_multi(9)
• mii_init(9)
• setup_queue_timers(9)
• setup_adaptive_interrupts(9)
• velocity_init_registers(9)
• velocity_init_dma_rings(9)
• velocity_alloc_rx_buf(9)
• velocity_free_rd_ring(9)
• velocity_init_rd_ring(9)
• velocity_init_td_ring(9)
• velocity_free_dma_rings(9)
• velocity_free_tx_buf(9)
• velocity_free_td_ring(9)
• velocity_error(9)
• velocity_tx_srv(9)
• velocity_rx_copy(9)
• velocity_iph_realign(9)
• velocity_receive_frame(9)
• velocity_rx_srv(9)
• velocity_intr(9)
• velocity_open(9)
• velocity_shutdown(9)
• velocity_change_mtu(9)
• velocity_poll_controller(9)
• velocity_mii_ioctl(9)
• velocity_ioctl(9)
• velocity_get_stats(9)
• velocity_close(9)
• velocity_xmit(9)
• velocity_init_info(9)
• velocity_get_pci_info(9)
• velocity_get_platform_info(9)
• velocity_print_info(9)
• velocity_probe(9)
• velocity_remove(9)
• wol_calc_crc(9)
• velocity_set_wol(9)
• velocity_save_context(9)
• velocity_restore_context(9)
• velocity_ethtool_up(9)
• velocity_ethtool_down(9)
• velocity_init_module(9)
• velocity_cleanup_module(9)

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🫶 quick reminder bestie: that list is long on purpose, okay? read 'em, don't skim 'em. they're all part of the same little via-velocity family 💀

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and that's the page!! mwah 💋 this whole thing ships out of ./drivers/net/ethernet/via and it's dated October 2026 — so yeah, she's from the future, iconic behavior honestly 🌈✨