ice_get_dscp_up(9)

💖 NAME 💖

okay bestie, welcome to ice_get_dscp_up(9) — this is the Kernel API Manual page for it, and it's here to return the UP/TC value for a SKB. no cap. 💅✨

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🎀 SYNOPSIS 🎀

the signature is giving exactly this:

u8 ice_get_dscp_up (struct ice_dcbx_cfg *dcbcfg , struct sk_buff *skb );

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🌸 ARGUMENTS 🌸

• dcbcfg — the DCB config that contains the DSCP to UP/TC mapping. literally the lookup table vibe.
• skb — the SKB you're querying for info to determine UP/TC. bestie is getting inspected 🔍

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🦋 DESCRIPTION 🦋

okay so the one big rule here: this function is to only be called when the PF is in L3 DSCP PFC mode. that's the whole condition, and it's not optional.

🚨 only call it when the PF is in L3 DSCP PFC mode — periodt.

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✨ SEE ALSO ✨

the whole squad of related pages and the kernel file are right here — every single one, no skipping:

• ./drivers/net/ethernet/intel/ice/ice_txrx.c — the kernel file
• ice_prgm_fdir_fltr(9)
• ice_unmap_and_free_tx_buf(9)
• ice_clean_tstamp_ring(9)
• ice_free_tstamp_ring(9)
• ice_free_tx_tstamp_ring(9)
• ice_clean_tx_ring(9)
• ice_free_tx_ring(9)
• ice_clean_tx_irq(9)
• ice_alloc_tstamp_ring(9)
• ice_setup_tstamp_ring(9)
• ice_alloc_setup_tstamp_ring(9)
• ice_setup_tx_ring(9)
• ice_clean_rx_ring(9)
• ice_free_rx_ring(9)
• ice_setup_rx_ring(9)
• ice_run_xdp(9)
• ice_xmit_xdp_ring(9)
• ice_xdp_xmit(9)
• ice_init_ctrl_rx_descs(9)
• ice_alloc_rx_bufs(9)
• ice_clean_ctrl_rx_irq(9)
• ice_clean_rx_irq(9)
• ice_net_dim(9)
• ice_buildreg_itr(9)
• ice_enable_interrupt(9)
• ice_set_wb_on_itr(9)
• ice_napi_poll(9)
• __ice_maybe_stop_tx(9)
• ice_maybe_stop_tx(9)
• ice_tx_map(9)
• ice_tx_csum(9)
• ice_tx_prepare_vlan_flags(9)
• ice_tso(9)
• ice_txd_use_count(9)
• ice_xmit_desc_count(9)
• __ice_chk_linearize(9)
• ice_chk_linearize(9)
• ice_tstamp(9)
• ice_xmit_frame_ring(9)
• ice_start_xmit(9)
• ice_clean_ctrl_tx_irq(9)

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mwah 💖 signing off from the ./drivers/net/ethernet/intel/ice source/version, dated October 2026 — bestie, you're all caught up 🫶🌈