__bnx2x_vlan..._h_read_lock(9)

💅 __bnx2x_vlan_mac_h_read_lock — a whole moment in the Kernel API Manual ✨

okay so bestie, we're in the Kernel API Manual and today's main character is __bnx2x_vlan_mac_h_read_lock(9) (the header up top truncates it all cute as __bnx2x_vlan..._h_read_lock(9), iykyk, long names are a vibe). Buckle up, this one's short but it's got lore. 🎀

---

✨ NAME ✨

__bnx2x_vlan_mac_h_read_lock — lock the vlan mac head list reader lock. that's it. that's the whole job. lowkey iconic. 🔒💖

---

🦋 SYNOPSIS 🦋

int __bnx2x_vlan_mac_h_read_lock (struct bnx2x *bp , struct
       bnx2x_vlan_mac_obj *o );

it returns an int, bestie. noted. 📝

---

🌸 ARGUMENTS 🌸

• bp — the device handle. ur actual nibble-shuffling hardware friend 🫶
• o — the vlan_mac object. the little guy we're locking for 💅

---

👑 CONTEXT 👑

okay this part is IMPORTANT, no cap, read it twice:

• Should be called under the execution queue lock. don't just roll up whenever, you gotta be in the right place already ✨
• May sleep. yes fr, she naps. it's allowed. 😴
• May release and reclaim execution queue lock during its run. the way that it can just let go of the lock mid-run and grab it back?? confident queen behaviour 👑 like she's not even worried

this is the "know where you're standing" section, bestie — the lock semantics here are load-bearing, so respect them 💀

---

🧚 SEE ALSO 🧚

the Kernel file ./drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c (that's where she lives 💜) plus this whole extended friend group:

• bnx2x_exe_queue_init(9)
• bnx2x_exe_queue_add(9)
• bnx2x_exe_queue_step(9)
• bnx2x_state_wait(9)
• __bnx2x_vlan_mac_h_write_trylock(9)
• __bnx2x_vlan_mac_h_exec_pending(9)
• __bnx2x_vlan_mac_h_pend(9)
• __bnx2x_vlan_mac_h_write_unlock(9)
• bnx2x_vlan_mac_h_read_lock(9)
• __bnx2x_vlan_mac_h_read_unlock(9)
• bnx2x_vlan_mac_h_read_unlock(9)
• bnx2x_vlan_mac_set_cmd_hdr_e2(9)
• bnx2x_vlan_mac_set_rdata_hdr_e2(9)
• bnx2x_vlan_mac_set_rdata_hdr_e1x(9)
• bnx2x_set_one_mac_e1x(9)
• bnx2x_set_one_vlan_mac_e1h(9)
• bnx2x_vlan_mac_restore(9)
• bnx2x_validate_vlan_mac_add(9)
• bnx2x_validate_vlan_mac_del(9)
• bnx2x_validate_vlan_mac_move(9)
• bnx2x_wait_vlan_mac(9)
• bnx2x_complete_vlan_mac(9)
• bnx2x_optimize_vlan_mac(9)
• bnx2x_vlan_mac_get_registry_elem(9)
• bnx2x_execute_vlan_mac(9)
• bnx2x_config_vlan_mac(9)
• bnx2x_vlan_mac_del_all(9)
• bnx2x_mcast_get_next_bin(9)
• bnx2x_mcast_clear_first_bin(9)
• bnx2x_mcast_handle_restore_cmd_e2(9)
• bnx2x_mcast_handle_current_cmd(9)
• bnx2x_mcast_set_rdata_hdr_e2(9)
• bnx2x_mcast_refresh_registry_e2(9)
• bnx2x_mcast_set_rdata_hdr_e1(9)
• bnx2x_mcast_handle_restore_cmd_e1(9)
• bnx2x_get_fw_mac_addr(9)
• bnx2x_mcast_refresh_registry_e1(9)
• __atomic_add_ifless(9)
• __atomic_dec_ifmoe(9)
• bnx2x_init_credit_pool(9)
• bnx2x_debug_print_ind_table(9)
• bnx2x_setup_rss(9)
• bnx2x_queue_state_change(9)
• bnx2x_queue_comp_cmd(9)
• bnx2x_q_init(9)
• bnx2x_q_send_deactivate(9)
• bnx2x_q_send_activate(9)
• bnx2x_queue_chk_transition(9)
• bnx2x_func_state_change_comp(9)
• bnx2x_func_comp_cmd(9)
• bnx2x_func_chk_transition(9)
• bnx2x_func_init_func(9)
• bnx2x_func_init_port(9)
• bnx2x_func_init_cmn_chip(9)
• bnx2x_func_init_cmn(9)
• bnx2x_func_reset_func(9)
• bnx2x_func_reset_port(9)
• bnx2x_func_reset_cmn(9)
• bnx2x_func_state_change(9)

like. look at that list. she knows EVERYONE. the whole bnx2x friend group pulled up in the mentions 🫶🔥

---

kay that's the whole page bestie!! short, sweet, does exactly one thing and does it well — we love a focused queen 💅✨

sign-off time 🎀 this lil page comes from ./drivers/net/ethernet/broadco... (yes that's the truncated path, the manual page be keeping secrets 🙈), dated October 2026, and yeah the footer's got <rainbow>__bnx2x_vlan..._h_read_lock(9)</rainbow> on it too — full circle, periodt. 💖