i40e_read_nvm_module_data(9)

💅 i40e_read_nvm_module_data — bestie, let's read some NVM

okay so real talk, this is a page from the Kernel API Manual and it's the i40e_read_nvm_module_data(9) entry ✨ — yes, the (9) is giving very "we live in the kernel section of the manual" energy, iykyk 🎀

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🌸 NAME 🌸

i40e_read_nvm_module_data — Reads NVM Buffer to specified memory location 🧚

Like, that's literally what it does. It reads an NVM buffer and drops it exactly where you told it to. no cap. 🫶

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✨ SYNOPSIS ✨

int i40e_read_nvm_module_data (struct i40e_hw *hw , u8 module_ptr , u16
module_offset , u16 data_offset , u16 words_data_size , u16 *data_ptr );

she returns an int, and she takes six whole arguments. six! the way that this function is highkey doing the most 💅 but honestly? slay.

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🌈 ARGUMENTS 🌈

okay bestie, here's the cast of characters, one by one, no skips:

• hw — Pointer to the HW structure 🖥️ this is your hardware babe, the whole vibe check of the operation.
• module_ptr — Pointer to module in words with respect to NVM beginning 📍 so like, in words, measured from the start of the NVM. words, not bytes, don't come for me.
• module_offset — Offset in words from module start 🎯 counted from where the module begins.
• data_offset — Offset in words from reading data area start 🧭 this one's counted from the start of the reading data area — different starting line, same word units.
• words_data_size — Words to read from NVM 📏 literally how many words you want pulled out of the NVM. the size of the snack, basically 🍓
• data_ptr — Pointer to memory location where resulting buffer will be stored 🏠 this is where the freshly-read buffer lands. it's giving "delivery address" energy.

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💜 SEE ALSO 💜

okay so there are so many siblings in this family, it's a whole friend group 😭 and the kernel file they all live in is right here:

• Kernel file ./drivers/net/ethernet/intel/i40e/i40e_nvm.c

and now the whole squad, in order, bestie:

• i40e_init_nvm(9)
• i40e_acquire_nvm(9)
• i40e_release_nvm(9)
• i40e_poll_sr_srctl_done_bit(9)
• i40e_read_nvm_word_srctl(9)
• i40e_read_nvm_aq(9)
• i40e_read_nvm_word_aq(9)
• __i40e_read_nvm_word(9)
• i40e_read_nvm_word(9)
• i40e_read_nvm_buffer_srctl(9)
• i40e_read_nvm_buffer_aq(9)
• __i40e_read_nvm_buffer(9)
• i40e_read_nvm_buffer(9)
• i40e_write_nvm_aq(9)
• i40e_calc_nvm_checksum(9)
• i40e_update_nvm_checksum(9)
• i40e_validate_nvm_checksum(9)
• i40e_nvmupd_validate_command(9)
• i40e_nvmupd_nvm_erase(9)
• i40e_nvmupd_nvm_write(9)
• i40e_nvmupd_nvm_read(9)
• i40e_nvmupd_exec_aq(9)
• i40e_nvmupd_get_aq_result(9)
• i40e_nvmupd_get_aq_event(9)
• i40e_nvmupd_state_init(9)
• i40e_nvmupd_state_reading(9)
• i40e_nvmupd_state_writing(9)
• i40e_nvmupd_command(9)
• i40e_nvmupd_clear_wait_state(9)
• i40e_nvmupd_check_wait_event(9)

like… that's thirty-two references plus a file path. she's connected. main character energy fr fr 👑🔥

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quick vibe check bestie: every one of those (9) references is exactly as written above — don't go shortening them, the kernel is very particular and so am I 💅

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and that's the whole page, babe 🦋 the source lives over at ./drivers/net/ethernet/intel/i40e, dated October 2026, and it's filed under i40e_read_nvm_module_data(9). mwah, go read some NVM, you absolute icon 💖✨🎀