snc_kernel_support(9)

💖 snc_kernel_support(9) 💖

okay bestie, this is the Kernel API Manual page for snc_kernel_support(9) — manual name folded in near the top like a lil bookmark, because we are cute and organized 🎀✨

🌸 NAME 🌸

snc_kernel_support — checks for the existence of the mon_sub_L3_00 file, which indicates SNC resctrl support on the kernel side. 💅🔍

✨ SYNOPSIS ✨

int snc_kernel_support (void );

🫶 ARGUMENTS 🫶

void — no arguments. literally none, not a single one 😌💖

👑 RETURN 👑

it returns an int, and the mapping is giving very specific energy:

• 0 — not supported 🙈
• 1 — SNC is disabled, or SNC discovery is unreliable, or SNC is both enabled and supported 🌀

yes bestie, that 1 is clocking in for three different situations — read the list carefully, no skipping 💀💅

🔥 SEE ALSO 🔥

• Kernel file: ./tools/testing/selftests/resctrl/resctrlfs.c — that's the reference, go peek if you're curious 👀🦋

xoxo, this page comes from the source/version ./tools/testing/selftests/resctrl, dated October 2026. catch you in the kernel, bestie 💜🌈