zfcp_fsf_send_ct(9)

📦 version 7.3.1, in nixpkgs unstable

💅 zfcp_fsf_send_ct — a Kernel API Manual moment 🌸

okay bestie, so we're in the zfcp_fsf_send_ct(9) page from the Kernel API Manual, and this one is literally about kicking off a Generic Service request (that's FC-GS, iykyk 🦋). it's giving low-level s390 fibre channel realness and honestly? we're obsessed.

✨ NAME ✨

zfcp_fsf_send_ct — initiate a Generic Service request (FC-GS) 💌

so yeah, this function is the one that actually sends the CT/GS off into the world. main character energy fr.

🎀 SYNOPSIS 🎀

int zfcp_fsf_send_ct (struct zfcp_fc_wka_port *wka_port , struct
zfcp_fsf_ct_els *ct , mempool_t *pool , unsigned int timeout );

it returns an int, no cap. that's the whole vibe check right there 💅

🫶 ARGUMENTS 🫶

  • wka_port — a pointer to the zfcp WKA port you wanna send that CT/GS to 🎯 like, this is the destination bestie.
  • ct — a pointer to a struct zfcp_fsf_ct_els that's carrying all the data for the CT request 🍓 it's the payload holder.
  • pool — if this is non-null, then this mempool gets used to allocate the struct zfcp_fsf_req ✨ so yeah, null = you're not using it, non-null = it's doing the allocating, periodt.
  • timeout — the timeout the hardware should use, plus a later software timeout ⏰ two timeouts for the price of one, we love a multitasker.

🦋 SEE ALSO 🦋

it's giving "here's the entire friend group" — the source lives in the kernel file ./drivers/s390/scsi/zfcp_fsf.c 👑

like, read all of them. or don't. but they're there 🧚

okay that's the page bestie, and for the cute sign-off: this lil masterpiece comes from ./drivers/s390/scsi and it's dated October 2026 ⭐ go off, kernel docs 🌈💜

📦 where this page comes from