rvu_npc_exac..._table_entry(9)

💅 rvu_npc_exac..._table_entry(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — yes the whole thing, section 9, the deep lore. this page is about rvu_npc_exact_update_table_entry and it's giving "small function, big responsibilities" energy, i'm obsessed 🎀

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🦋 NAME 🦋

rvu_npc_exact_update_table_entry — literally just updates an exact match table. that's it. that's the whole vibe. 💖

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✨ SYNOPSIS ✨

int rvu_npc_exact_update_table_entry (struct rvu *rvu , u8 cgx_id , u8
lmac_id , u8 *old_mac , u8 *new_mac , u32 *seq_id );

like, look at her. six arguments. main character energy fr fr 👑

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🌸 ARGUMENTS 🌸

• rvu — the resource virtualization unit. the whole reason we're here 🫶
• cgx_id — CGX identifier. (that's her name, that's her whole identity)
• lmac_id — LMAC identifier. sisters, not twins 💜
• old_mac — the existing MAC address entry. the before pic 📸
• new_mac — the new MAC address entry. the glow-up 💅
• seq_id — sequence identifier of the entry. gotta know which one we're talking about, iykyk 🔥

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🧚 DESCRIPTION 🧚

so what does she do? she updates the MAC address of an entry. simple. iconic. no notes. ⭐

but okay, plot twist alert 🚨 — if the entry is in the MEM table, the new hash value may not match with the old one. not me finding out it's not a one-to-one, that's so real of her 😭

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🌈 RETURN 🌈

0 upon success. that's the only documented return value, so like... manifesting that 0 for you bestie 🙈💖

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👑 SEE ALSO 👑

bestie we are about to scroll. the kernel file lives at ./drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c — go read it, it's tea ☕ here's the whole friend group:

• rvu_exact_prepare_mdata(9)
• rvu_exact_calculate_hash(9)
• rvu_npc_exact_alloc_mem_table_entry(9)
• rvu_npc_exact_free_id(9)
• rvu_npc_exact_alloc_id(9)
• rvu_npc_exact_alloc_cam_table_entry(9)
• rvu_exact_prepare_table_entry(9)
• rvu_exact_config_secret_key(9)
• rvu_exact_config_search_key(9)
• rvu_exact_config_result_ctrl(9)
• rvu_exact_config_table_mask(9)
• rvu_npc_exact_get_max_entries(9)
• rvu_npc_exact_has_match_table(9)
• __rvu_npc_exact_find_entry_by_seq_id(9)
• rvu_npc_exact_add_to_list(9)
• rvu_npc_exact_mem_table_write(9)
• rvu_npc_exact_cam_table_write(9)
• rvu_npc_exact_dealloc_table_entry(9)
• rvu_npc_exact_alloc_table_entry(9)
• rvu_npc_exact_save_drop_rule_chan_and_mask(9)
• rvu_npc_exact_calc_drop_rule_chan_and_mask(9)
• rvu_npc_exact_drop_rule_to_pcifunc(9)
• rvu_npc_exact_get_drop_rule_info(9)
• __rvu_npc_exact_cmd_rules_cnt_update(9)
• rvu_npc_exact_del_table_entry_by_id(9)
• rvu_npc_exact_add_table_entry(9)
• rvu_npc_exact_promisc_disable(9)
• rvu_npc_exact_promisc_enable(9)
• rvu_npc_exact_mac_addr_reset(9)
• rvu_npc_exact_mac_addr_update(9)
• rvu_npc_exact_mac_addr_add(9)
• rvu_npc_exact_mac_addr_del(9)
• rvu_npc_exact_mac_addr_set(9)
• rvu_npc_exact_can_disable_feature(9)
• rvu_npc_exact_disable_feature(9)
• rvu_npc_exact_reset(9)
• rvu_npc_exact_init(9)

like. thirty-six entries. ate and left no crumbs 🍓

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quick vibe check 🎀: u8 u8 u8 * u8 * u32 * — the types stay exactly as written, no cap, we do not touch the code bestie

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and that's the whole page!! 💖 brought to you by the Kernel API Manual, source ./drivers/net/ethernet/marvell..., dated October 2026, filed under rvu_npc_exac..._table_entry(9) — mwah, go touch some tables, ily 🫶✨