ice_handle_mdd_event(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_handle_mdd_event — the Kernel API Manual, but make it make sense

okay so bestie, welcome to the ice show 🧊✨ this one is a kernel API manual page for ice_handle_mdd_event(9), and honestly? it's giving "small function, big responsibilities." let's get into it 🫶

✨ NAME ✨

ice_handle_mdd_event — handle malicious driver detect event 👀🔥

like... somebody's driver is being shady and this is the function that deals with it. no cap.

🌸 SYNOPSIS 🌸

void ice_handle_mdd_event (struct ice_pf *pf );

that's it. that's the whole signature. short king 👑 keep it exactly like that, character for character, okay?

🎀 ARGUMENTS 🎀

  • pf — pointer to the PF structure. that's the physical function, the main character of this whole file fr fr 💜

🦋 DESCRIPTION 🦋

so here's the vibe 💫 this gets called from the service task. the OICR interrupt handler is the one that indicates an MDD event — that's your signal that something went down 👀

the VF MDD logging is guarded by net_ratelimit, so it won't just spam your logs into oblivion, we love a rate limit 😌✋

the additional PF and VF log messages are wrapped by netif_msg_[rx|tx]_err — yes, both, rx and tx, that's what the brackets mean, iykyk 💅

and here's the important bit, bestie, pay attention: since VF Rx MDD events disable the queue (yes, actually disable it, not cute at all 😭), the PF can be configured to reset the VF using the ethtool private flag mdd-auto-reset-vf. so if you want auto-reset behavior, that's your knob 🎛️✨

🔥 SEE ALSO 🔥

okay this list is long — like, scroll-for-a-while long — but every single one of these is legit and I'm not skipping a single one, periodt 💅 the kernel file itself lives at ./drivers/net/ethernet/intel/ice/ice_main.c:

like I said. long list. but we don't gatekeep cross-references in this house 🙌 literally every one of them is above, no skips, no "etc." 💯

and that's the whole page bestie!! 🎉 nothing dangerous here, no deprecated drama, just a little MDD handling and a whole lot of SEE ALSO. go read the source at ./drivers/net/ethernet/intel/ice if you wanna see it for real 🌈

mwah 💋 — this lil rewrite is dated October 2026, straight from the kernel API manual, ice_handle_mdd_event(9), and I'd say we ate 🍓✨

📦 where this page comes from