fm10k_update_vlan_pf(9)

💅 fm10k_update_vlan_pf(9) — like, the whole kernel API manual vibe 🎀

okay bestie, so this one lives in the Kernel API Manual, and it's called fm10k_update_vlan_pf(9). yes the name is a mouthful, no we're not changing it, it's iconic in its own way ✨

---

✨ SYNOPSIS ✨

s32 fm10k_update_vlan_pf (struct fm10k_hw *hw , u32 vid , u8 vsi , bool
set );

that's the whole function signature, no cap. it returns an s32, and it takes four args. we're gonna go through each one, one at a time, because that's just how we do 💖

---

🌸 ARGUMENTS 🌸

• hw — pointer to hardware structure. yeah she's a pointer, she points at the hardware struct, that's her whole job 🫶
• vid — the VLAN ID to add to table. this is the actual number going in, main character of the operation fr
• vsi — Index indicating VF ID or PF ID in table. so like, which function's corner of the table we're messing with 👑
• set — Indicates if this is a set or clear operation. bool, so it's giving true/false, add/remove energy 💅

---

🔥 DESCRIPTION 🔥

so what does she do? she adds or removes the corresponding VLAN ID from the VLAN filter table for the corresponding function. that's it, that's the whole errand 🦋

and here's the part that's lowkey kinda slay: in addition to the standard set/clear that supports one bit, a multi-bit write is supported — so you can set 64 bits at a time. sixty-four. at once. ate 💀🔥

ngl bestie, "one bit at a time" is cute and all, but 64 bits in one go is the moment the whole function becomes a baddie 🌈

---

🎀 SEE ALSO 🎀

the kernel file she lives in:

• Kernel file ./drivers/net/ethernet/intel/fm10k/fm10k_pf.c

and literally the entire friend group, in order, no skips:

• fm10k_reset_hw_pf(9), fm10k_is_ari_hierarchy_pf(9), fm10k_init_hw_pf(9), fm10k_read_mac_addr_pf(9), fm10k_glort_valid_pf(9), fm10k_update_xc_addr_pf(9), fm10k_update_uc_addr_pf(9), fm10k_update_mc_addr_pf(9), fm10k_update_xcast_mode_pf(9), fm10k_update_int_moderator_pf(9), fm10k_update_lport_state_pf(9), fm10k_configure_dglort_map_pf(9), fm10k_iov_assign_resources_pf(9), fm10k_iov_configure_tc_pf(9), fm10k_iov_assign_int_moderator_pf(9), fm10k_iov_assign_default_mac_vlan_pf(9), fm10k_iov_reset_resources_pf(9), fm10k_iov_set_lport_pf(9), fm10k_iov_reset_lport_pf(9), fm10k_iov_update_stats_pf(9), fm10k_iov_msg_msix_pf(9), fm10k_iov_select_vid(9), fm10k_iov_supported_xcast_mode_pf(9), fm10k_iov_msg_lport_state_pf(9), fm10k_update_hw_stats_pf(9), fm10k_rebind_hw_stats_pf(9), fm10k_set_dma_mask_pf(9), fm10k_get_fault_pf(9), fm10k_request_lport_map_pf(9), fm10k_get_host_state_pf(9), fm10k_msg_lport_map_pf(9), fm10k_msg_update_pvid_pf(9), fm10k_record_global_table_data(9), fm10k_msg_err_pf(9)

---

okay that's the page!! 🧚 source is ./drivers/net/ethernet/intel/f... (yes it's truncated like that, don't come for me, that's literally what it says 🙈) and it's dated October 2026, and it's page fm10k_update_vlan_pf(9) of the Kernel API Manual. mwah 💜🌸 go update some VLAN IDs bestie, you got this 🫶✨