read_nvm_cfg(9)

💖 read_nvm_cfg(9) — like, the whole vibe 💖

Okay bestie, welcome to section 9 of the Kernel API Manual — yes, the kernel API manual, we're those girls now, and honestly? Iconic. Today's main character is read_nvm_cfg, and the way it just... reads an NVM config attribute value? Obsessed. Let's get into it. 🦋

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✨ NAME ✨

read_nvm_cfg — Read NVM config attribute value. That's it, that's the whole gig. She reads, she slays, she leaves. 💅

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🌸 SYNOPSIS 🌸

int read_nvm_cfg (struct qed_dev *cdev , u8 **buf , u32 cmd , u32
entity_id );

Lowkey a whole mood. Note the int — she returns an int, we'll get to that. 👑

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🎀 ARGUMENTS 🎀

Four besties walk into a function call:

• cdev — the Qed dev pointer. Like, the device's whole identity, her passport, her vibe. 🫶
• buf — the buffer. It's a u8 ** bestie, a pointer to a pointer, so yeah, she's indirect and mysterious and we respect that. 💜
• cmd — the NVM CFG command id (u32, natch). Tells her which command she's running. 🎯
• entity_id — the entity id (u32, again). Which entity we're talking to. Very demure, very entity-coded. ✨

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⭐ RETURN ⭐

Returns an Int. That is the entire documented return value and honestly? She said "figure the rest out yourself." No cap. 😭

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🌈 SEE ALSO 🌈

Bestie, buckle up, because this list is long and every single one of these is invited to the function party 🎉 — we're literally not leaving a single one out, that would be so rude:

• The kernel file ./include/linux/qed/qed_if.h — go read her, she's the source of truth 📖
• selftest_interrupt(9)
• selftest_memory(9)
• selftest_register(9)
• selftest_clock(9)
• selftest_nvram(9)
• can_link_change(9)
• set_link(9)
• get_link(9)
• drain(9)
• update_msglvl(9)
• nvm_flash(9)
• nvm_get_image(9)
• set_coalesce(9)
• set_led(9)
• attn_clr_enable(9)
• db_recovery_add(9)
• db_recovery_del(9)
• recovery_process(9)
• recovery_prolog(9)
• update_drv_state(9)
• update_mac(9)
• update_mtu(9)
• update_wol(9)
• read_module_eeprom(9)
• get_affin_hwfn_idx(9)
• read_nvm_cfg_len(9) — her sibling!! the reader of the length!! sibling energy fr fr 👯
• set_grc_config(9)
• qed_sb_ack(9)

That's the whole squad. No one left behind. 💀

Pro tip from your girl: if you're ever lost in the QED source, just start at qed_if.h and vibe your way through. That's not from the manpage btw, that's just me being a friend. 🍓

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Alright bestie, that's the page! This little beauty lives in ./include/linux/qed, and she's stamped October 2026 — so mark your calendars, she's futuristic. 🧚 Stay hydrated, read your headers, and remember: int read_nvm_cfg loves you. Mwah! 💖✨🎀