lpfc_sli_pro...ov_nr_virtfn(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_sli_probe_sriov_nr_virtfn(9) — Kernel API Manual, but make it make sense 🎀

okay so bestie, grab your iced coffee, because we're diving into the kernel API manual for lpfc_sli_probe_sriov_nr_virtfn(9) — yes that's the whole name, yes it's a mouthful, no we're not shortening it, it's iconic as-is 💖

✨ NAME ✨

lpfc_sli_probe_sriov_nr_virtfn — literally just "Enable a number of sr-iov virtual functions". that's the whole vibe 🦋

🌸 SYNOPSIS 🌸

int lpfc_sli_probe_sriov_nr_virtfn (struct lpfc_hba *phba , int nr_vfn );

it's giving "one function, two args, no drama" ✨

🎀 ARGUMENTS 🎀

  • phba — pointer to lpfc_hba data structure. yeah. the hba. the whole main character of this struct situation 👑
  • nr_vfn — number of virtual functions to be enabled. that's the count, bestie, that's how many we're turning on 🔥

💜 DESCRIPTION 💜

so what does it actually do? okay so — this function enables the PCI SR-IOV virtual functions to a physical function. that's the whole assignment. it invokes the PCI SR-IOV api with the nr_vfn you handed it, to enable that number of virtual functions to the physical function 💫

and here's the little caveat you need to know (ngl this part matters): as not all devices support SR-IOV, the return code from the pci_enable_sriov API call does not get considered as an error condition for most of the device. so like, don't panic when it comes back weird — that's just the design, periodt 🙈

fr fr, read that sentence twice. the non-zero return from pci_enable_sriov is not treated as an error for most devices. no cap.

🦋 SEE ALSO 🦋

the kernel file ./drivers/scsi/lpfc/lpfc_init.c and honestly? a whole friend group of functions. iykyk. here's everybody, nobody left out, we don't do that here 💅

like, that's the whole roster. every single one. we did not skip a single (9), bestie 🫶

and that's the tea 🍓 this little page lives in ./drivers/scsi/lpfc and it's dated October 2026 — shoutout to whoever's maintaining this in the future, you're doing amazing sweetie 💜✨⭐

📦 where this page comes from