t3_set_vlan_accel(9)

✨ NAME ✨

t3_set_vlan_accel — control HW VLAN extraction 💅

okay so bestie, this one's from the Kernel API Manual (section 9, kernel-space girlies only, no userland shenanigans) and it's literally the little switch that turns hardware VLAN tag extraction on or off. tiny function, big main character energy. 🎀

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🎀 SYNOPSIS 🎀

void t3_set_vlan_accel (struct adapter *adapter , unsigned int ports ,
       int on );

like, that's the whole signature. she's not subtle. not one return value, not one error code — she just does the thing. 💀

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🌸 ARGUMENTS 🌸

• adapter — the adapter. that's the description. it's the adapter. 🫶 (it's the NIC you're poking at, obvi.)
• ports — bitmap of adapter ports to operate on 🗺️ so like, you pick which ports get the treatment with a bitmask — yes it's a bitmap, yes you have to think in binary, no you can't skip it.
• on — enable (1) or disable (0) HW VLAN extraction ⚡ those are the only two moods: 1 (on, slay) or 0 (off, not slaying).

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💖 DESCRIPTION 💖

Enables or disables HW extraction of VLAN tags for the given port. 🦋

that's it. that's the function. flip it on and the hardware starts pulling VLAN tags out for you; flip it off and it stops. no cap, no hidden lore, no extra options to memorize. honestly? refreshing. ✨

ngl the given port part matters — the port selection comes from that ports bitmap up in ARGUMENTS, so don't come crying to me if you set the wrong bit. 🙈

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🦋 SEE ALSO 🦋

the source file herself lives right here, in the kernel tree:

./drivers/net/ethernet/chelsio/cxgb3/t3_hw.c

and because this is a kernel API page, the whole cxgb3 friend group is tagged in. all 59 of them, i counted, we're listing every single one 💜

registers, memory & friends — t3_wait_op_done_val(9), t3_write_regs(9), t3_set_reg_field(9), t3_read_indirect(9), t3_mc7_bd_read(9), mc7_calc_size(9), t3_cim_ctl_blk_read(9)

MDIO & PHY girlies — t3_mdio_change_bits(9), t3_phy_reset(9), t3_phy_advertise(9), t3_phy_advertise_fiber(9), t3_set_phy_speed_duplex(9)

EEPROM, flash & firmware — t3_seeprom_wp(9), get_vpd_params(9), sf1_read(9), sf1_write(9), flash_wait_op(9), t3_read_flash(9), t3_write_flash(9), t3_flash_erase_sectors(9), t3_load_fw(9)

version checks (the vibe check squad) — t3_get_tp_version(9), t3_check_tpsram_version(9), t3_check_tpsram(9), t3_get_fw_version(9), t3_check_fw_version(9)

link & interrupts — t3_link_changed(9), t3_link_start(9), init_link_config(9), t3_handle_intr_status(9), t3_intr_enable(9), t3_intr_disable(9), t3_intr_clear(9), t3_port_intr_enable(9), t3_port_intr_disable(9), t3_port_intr_clear(9)

SGE, the whole crew — t3_sge_write_context(9), clear_sge_ctxt(9), t3_sge_init_ecntxt(9), t3_sge_init_flcntxt(9), t3_sge_init_rspcntxt(9), t3_sge_init_cqcntxt(9), t3_sge_enable_ecntxt(9), t3_sge_disable_fl(9), t3_sge_disable_rspcntxt(9), t3_sge_disable_cqcntxt(9), t3_sge_cqcntxt_op(9)

TP, RSS, timers & config — t3_config_rss(9), t3_tp_set_offload_mode(9), pm_num_pages(9), partition_mem(9), tp_set_timers(9), t3_tp_set_coalescing_size(9), t3_tp_set_max_rxsize(9), t3_load_mtus(9), t3_tp_get_mib_stats(9), t3_set_proto_sram(9), t3_config_sched(9), get_pci_mode(9)

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okay that's the whole page, you're free, go toggle a VLAN bit 💅✨

cute little sign-off bestie: this one's stamped from the path ./drivers/net/ethernet/chelsio... and dated October 2026 — so yeah, she's a period piece, an icon, a legend, and she's out here explaining herself in exactly one sentence. obsessed. 🎀💖🦋