ixgbe_obtain_mbx_lock_pf(9)

💅 ixgbe_obtain_mbx_lock_pf(9) — the Kernel API Manual, bestie edition 🎀

Okay so this page lives in the Kernel API Manual and it's literally called ixgbe_obtain_mbx_lock_pf — say that five times fast, I dare you. Group-chat recap: it's a kernel function that grabs a mailbox lock for a PF (physical function) talking to a VF. Iconic driver energy, no cap. 🦋

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✨ NAME ✨

ixgbe_obtain_mbx_lock_pf — obtain mailbox lock. that's it, that's the whole vibe. 🔒

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🌸 SYNOPSIS 🌸

int ixgbe_obtain_mbx_lock_pf (struct ixgbe_hw *hw , u16 vf_number );

Look at that signature. So clean. So struct ixgbe_hw *. We love a pointer. 💖

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🫶 ARGUMENTS 🫶

• hw — pointer to the HW structure. like, the hardware's whole personality, handed to you as a pointer. 🖥️
• vf_number — the VF index, u16 flavoured. which virtual function are we talking to? this number right here. 👑

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💫 DESCRIPTION 💫

Return SUCCESS if we obtained the mailbox lock. ✨

That's the entire deal bestie — if the lock was obtained, you get SUCCESS back. If not… well, the manpage isn't gonna spoil it, and neither am I. 🙈

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c — go read the source, it's giving main character energy. 📂
• ixgbe_read_mbx(9)
• ixgbe_write_mbx(9)
• ixgbe_check_for_msg(9)
• ixgbe_check_for_ack(9)
• ixgbe_check_for_rst(9)
• ixgbe_poll_for_msg(9)
• ixgbe_poll_for_ack(9)
• ixgbe_read_posted_mbx(9)
• ixgbe_write_posted_mbx(9)
• ixgbe_check_for_msg_pf(9)
• ixgbe_check_for_ack_pf(9)
• ixgbe_check_for_rst_pf(9)
• ixgbe_write_mbx_pf(9)
• ixgbe_read_mbx_pf(9)
• ixgbe_init_mbx_params_pf(9)

Like, the whole mailbox friend group showed up. 🫶✨

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ngl the whole family is just mailbox functions checking on each other, polling, posting, reading, writing — it's a whole ecosystem and this one's job is simply to obtain the lock. slay. 💅

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okay that's the page!! 🧚 it comes from the kernel source tree at ./drivers/net/ethernet/intel/i... (the path gets a lil truncated in the footer, she's shy 🌸), dated October 2026, and you can find her filed under ixgbe_obtain_mbx_lock_pf(9) forever and always. mwah 💋🎀