icssg_ft3_hs...nfigurations(9)

🌸 icssg_ft3_hsr_configurations — the kernel API manual, bestie edition 🎀

okay so this page is literally from the Kernel API Manual and it's about icssg_ft3_hsr_configurations(9) — yes the name is a whole mouthful, we're calling her "the HSR/PRP filter table setup" for short 💅

✨ NAME ✨

icssg_ft3_hsr_configurations — sets up the filter table so it can spot HSR/PRP protocol frames 👀 no cap, that's the whole job.

✨ SYNOPSIS ✨

void icssg_ft3_hsr_configurations (struct regmap *miig_rt , int slice ,
       struct prueth *prueth );

it returns void, so like… she does the work and dips, no return value bestie 🫶

✨ ARGUMENTS ✨

• miig_rt — a pointer to the MII-G register map. that's the map, she needs it to know where the registers live 💖
• slice — the ICSSG slice number. and it's either 0 or 1, those are the only two, periodt ✌️
• prueth — a pointer to the prueth structure, and it's literally there so the function can figure out whether we're in HSR or PRP mode 🔥

✨ DESCRIPTION ✨

so what she does is configure FT3 to detect PTP frames — and those are the ones with EtherType 0x88F7 — inside HSR/PRP tagged packets ⭐

and here's the little detail that actually matters, iykyk: HSR frames have a 6-byte tag, while PRP has no tag offset for the EtherType detection. highkey a vibe difference between the two protocols and she handles it 💅

ngl this one's a small function, but miss girl is doing real work in there — don't sleep on her 🌸

✨ SEE ALSO ✨

• Kernel file ./drivers/net/ethernet/ti/icssg/icssg_classifier.c — go read it bestie, that's where the magic lives 🦋

and that's a wrap, bestie 🎀 this page was living in ./drivers/net/ethernet/ti/icssg, dated October 2026, and yes — the title up top is the iconically truncated icssg_ft3_hs...nfigurations(9) because sometimes the manpage header just gives up halfway 💀 slay anyway 💜