STRUCT DIAG_FTP_LDFPL(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct diag_ftp_ldfpl(9) 💅

okay so bestie, welcome to the kernel API manual for struct diag_ftp_ldfpl — that's the load file FTP parameter list, aka LDFPL if you're the kind of icon who loves an acronym 🎀. she's a struct, she's in the kernel, and she's literally the little info packet you hand over when you wanna load a file over FTP. no cap.

✨ SYNOPSIS ✨

like, here's her whole entire shape, bestie — every field, exactly as she is:

struct diag_ftp_ldfpl {
    u64 bufaddr;
    u64 buflen;
    u64 offset;
    u64 intparm;
    u64 transferred;
    u64 fsize;
    u64 failaddr;
    u64 spare;
    u8 fident[HMCDRV_FTP_FIDENT_MAX];
 };

she's giving very organized. very main character. 🫶

🌸 Members 🌸

the lineup, one by one 💖

  • bufaddr — the real buffer address, and heads up: it lives at a 4k boundary. yes, that's a requirement, she's picky like that ✨
  • buflen — the length of the buffer. how much room we're working with, basically 💅
  • offset — the dir/file offset. like where in the file we're pointing at 👀
  • intparm — the interruption parameter… which is unused. she's just there for vibes, honestly 💀
  • transferred — bytes transferred. the receipts of how much actually made it 📦
  • fsize — the file size, and ngl she gets filled on GET. so she starts empty and gets her moment during a GET 🎀
  • failaddr — the failing address. for when things go 💀 and you need to know where
  • spare — padding. every struct needs a little breathing room bestie 🌸
  • fident — the file name, in ASCII! that's the actual name of the file, no fancy unicode shenanigans here ✨ (also she's sized HMCDRV_FTP_FIDENT_MAX, iykyk)

🦋 SEE ALSO 🦋

go read these next, fr fr — they're all in the kernel file ./drivers/s390/char/diag_ftp.c:

and that's the whole vibe check, bestie 💜 this page came straight out of ./drivers/s390/char, dated October 2026, and it's literally called struct diag_ftp_ldfpl(9) — go forth and slay your FTP file loading, periodt 👑🌈

📦 where this page comes from