ENUM NTB_TOPO(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay so bestie, you're on the enum ntb_topo(9) page from the Kernel API Manual, and it's literally the NTB connection topology enum. That's the whole vibe: it tells you which NTB topology situation you're in, and the constants below are the whole cast. 🫶

✨ SYNOPSIS ✨

here's the exact enum, no cap:

enum ntb_topo {
    NTB_TOPO_NONE ,
    NTB_TOPO_PRI ,
    NTB_TOPO_SEC ,
    NTB_TOPO_B2B_USD ,
    NTB_TOPO_B2B_DSD ,
    NTB_TOPO_SWITCH ,
    NTB_TOPO_CROSSLINK

};

🎀 Constants 🎀

  • NTB_TOPO_NONE — Topology is unknown or invalid. lowkey the "no thoughts, head empty" option 😭
  • NTB_TOPO_PRI — On primary side of local ntb. main character energy on the local side ✨
  • NTB_TOPO_SEC — On secondary side of remote ntb. the remote side is giving supporting role, but make it iconic 💅
  • NTB_TOPO_B2B_USD — On primary side of local ntb upstream of remote ntb. upstream bestie, get into it 🌈
  • NTB_TOPO_B2B_DSD — On primary side of local ntb downstream of remote ntb. downstream bestie, same energy, different direction 🦋
  • NTB_TOPO_SWITCH — Connected via a switch which supports ntb. switch said "I got you" 🔥
  • NTB_TOPO_CROSSLINK — Connected via two symmetric switchecs. yes, switchecs is exactly what the page says, and we are preserving it, periodt 💀

🔥 SEE ALSO 🔥

Kernel file ./include/linux/ntb.h is the backstage pass, and these are all the linked icons you might wanna stalk next:

okay that's the page, bestie 💖 huge shoutout to the source/version ./include/linux and the date October 2026; this has been your enum ntb_topo(9) moment, and it ate. 🎀✨

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