dpni_get_taildrop(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dpni_get_taildrop — Kernel API Manual, bestie edition ✨

okay so real talk, this page is from the Kernel API Manual, and it's for dpni_get_taildrop(9). the whole vibe is "just go get the taildrop info, queen," and honestly? she ate. let's get into it 🎀

🌸 NAME 🌸

dpni_get_taildrop — Get taildrop information. that's it, that's the whole name section, but it's iconic so we're keeping it 💖

✨ SYNOPSIS ✨

here's the whole signature, and yes you have to type all of it. character for character. no cap:

int dpni_get_taildrop (struct fsl_mc_io *mc_io , u32 cmd_flags , u16
token , enum dpni_congestion_point cg_point , enum dpni_queue_type qtype
, u8 tc , u8 index , struct dpni_taildrop *taildrop );

like, it's giving "long function signature" energy but she returns an int so we respect her 🫶

🦋 ARGUMENTS 🦋

every single one of these matters, so here's the full roster — no skipping, we don't do that here:

  • mc_io — Pointer to MC portal's I/O object. you need this, it's like the portal to the whole thing, so bring it 🌈
  • cmd_flags — Command flags; one or more of 'MC_CMD_FLAG_' . yes literally one or more, you got options bestie ✨
  • token — Token of DPNI object. it's the DPNI's little name tag, lowkey important 💅
  • cg_point — Congestion point. which congestion point we're talking about, fr fr 🌸
  • qtype — Queue type on which the taildrop is configured. Only Rx queues are supported for now — so don't come at her with Tx, she's not ready for that yet 🙈
  • tc — Traffic class to apply this taildrop to. the specific TC, don't be vague about it 🎀
  • index — Index of the queue if the DPNI supports multiple queues for traffic distribution. Ignored if CONGESTION_POINT is not 0 — periodt, that's the rule ⭐
  • taildrop — Taildrop structure. the actual structure where the info lands, main character behavior honestly 👑

💫 RETURN 💫

so bestie… this section is literally blank in the source. like, not me checking twice 😭 no return values are documented here, so I'm not gonna invent any for you. we just vibe with what we've got 💀

🔥 SEE ALSO 🔥

the kernel file lives right here, go look at the real source if you want the tea:

Kernel file ./drivers/net/ethernet/freescale/dpaa2/dpni.c

and now the friend group. the whole entire friend group. seriously, there are so many and they're all slaying in their own way 🧚:

iykyk, that's a lot of cross-references and every last one is here 🫶

heads up bestie: nothing on this page is marked dangerous or deprecated, so you're free to read the taildrop info to your heart's content. but do keep your args straight — index gets ignored when CONGESTION_POINT is not 0, and only Rx queues are supported for qtype for now 🌈

and that's the page! 🎀 cute little sign-off for you: the footer source/version line got truncated down to ./drivers/net/ethernet/freesca... and the date on it is October 2026 — so yeah, mark your calendar, this manpage is from the future, slay 💖✨👑

📦 where this page comes from