ixgbe_read_sr_base_address(9)

📦 version 7.3.1, in nixpkgs unstable

💖 ixgbe_read_sr_base_address(9) — like, the Shadow RAM pointer reader ✨

okay bestie, welcome to the Kernel API Manual 🎀 this one's a lil function from the ixgbe driver family and honestly she's a supporting character but she matters — she's the one who turns a Shadow RAM word into an actual byte pointer so the flat NVM reads can happen. no cap. 🦋

🌸 NAME 🌸

ixgbe_read_sr_base_address — reads the value of a Shadow RAM pointer word 💅

✨ SYNOPSIS ✨

int ixgbe_read_sr_base_address (struct ixgbe_hw *hw , u16 offset , u32
*pointer );

like, that's the whole signature, three args, no drama 🫶

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure. you know the one. the hardware vibe holder 💜
  • offset — the word offset of the Shadow RAM word you wanna read 🔥
  • pointer — the pointer value read from Shadow RAM, handed back to you through this 🍓

🌈 DESCRIPTION 🌈

So what she does: she reads the given Shadow RAM word, then converts it into a pointer value specified in bytes. cute, right? 💖

⚠️ ok important: this function assumes the offset you passed is a valid pointer word. it does not check for you. it's giving trust-the-caller energy 😭

And here's the fun part — each pointer word tells you whether it's stored in word size or in 4KB sector size, and it does that with the highest bit. iconic little flag, ngl 👑

The pointer value she reports back is always in bytes, and it's intended for flat NVM reads. periodt. 💅

⭐ RETURN ⭐

the exit code of the operation. that's it, that's the return 🧚

🦋 SEE ALSO 🦋

and now the friend group 💜 — the kernel file lives at ./drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c, and here's literally everyone she hangs out with:

💫 and that's the whole page, bestie 💫

this gem came out of the source ./drivers/net/ethernet/intel/i... — yeah it's literally truncated like that in the original, not me being lazy 😭 — dated October 2026, and it's page ixgbe_read_sr_base_address(9) of the Kernel API Manual. mwah, go read some Shadow RAM 💋🎀

📦 where this page comes from