fbnic_ethtool_msix_test(9)

🦋 fbnic_ethtool_msix_test(9) 🦋

okay so bestie, welcome to the Kernel API Manual entry for fbnic_ethtool_msix_test — yes, it's a whole lot of letters, but it's literally just a function that wants to check your NIC interrupts. 💅

✨ NAME ✨

fbnic_ethtool_msix_test — verify behavior of NIC interrupts. no cap, that's the whole name section. 🫶

🌸 SYNOPSIS 🌸

int fbnic_ethtool_msix_test (struct net_device *netdev , u64 *data );

🎀 ARGUMENTS 🎀

• netdev — netdev device to test. like, the network device under examination, bestie. 💖
• data — pointer to results storage. it's where the results go, periodt. ✨

🔥 DESCRIPTION 🔥

so this function is meant to test the global interrupt registers and the PCIe IP MSI-X functionality. it essentially goes through and tests various combinations of the set, clear, and mask bits in order to verify the behavior is as we expect it to be from the driver. it's giving "interrupt vibe check" and honestly? iconic. 👑

🌈 RETURN 🌈

non-zero on failure. that's it, that's the return tea. if it comes back non-zero, something did not slay. 💀

🧚 SEE ALSO 🧚

Kernel file ./drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c

and that's the page, bestie! this one came from ./drivers/net/ethernet/meta/fbnic, with the date October 2026, and the manual name fbnic_ethtool_msix_test(9) — mwah, go touch some interrupts responsibly. 💜🎀