fbnic_msix_test(9)

✨ fbnic_msix_test(9) ✨

okay so bestie, welcome to the Kernel API Manual page for fbnic_msix_test 💅 this is the function that checks whether your NIC's interrupts are actually behaving, no cap.

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🌸 NAME 🌸

fbnic_msix_test — verify behavior of NIC interrupts 🫶

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⭐ SYNOPSIS ⭐

enum fbnic_msix_self_test_codes fbnic_msix_test (struct fbnic_dev *fbd
);

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🎀 ARGUMENTS 🎀

• fbd — the device to test. that's it, that's the whole arg list, we love a one-arg icon 👑

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🦋 DESCRIPTION 🦋

so like, this function is meant to test the global interrupt registers and the PCIe IP MSI-X functionality. literally both. it goes through and tests various combinations of the set, clear, and mask bits to verify the behavior is what we expect it to be from the driver's side.

the way that it just cycles through combos of set/clear/mask and vibe-checks each one… obsessed 🔥 it's giving thorough. it's giving "trust but verify". periodt.

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🌈 RETURN 🌈

see enum fbnic_msix_self_test_codes 💖 (that's where the answer lives, iykyk)

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👑 SEE ALSO 👑

• Kernel file ./drivers/net/ethernet/meta/fbnic/fbnic_irq.c
• fbnic_fw_request_mbx(9)
• fbnic_fw_disable_mbx(9)
• fbnic_fw_free_mbx(9)
• fbnic_mac_request_irq(9)
• fbnic_mac_free_irq(9)

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ngl bestie, if you're poking at interrupts, read the fbnic_irq.c file first — it's the main character here 🧚

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and that's the whole page, mwah 💋 this one came from ./drivers/net/ethernet/meta/fbnic, dated October 2026 — go off, bestie, you're gonna slay those self-tests 🍓💜