pci_enable_sriov(9)

💖 pci_enable_sriov (9) — Kernel API Manual 💖

okay so bestie, welcome to the pci_enable_sriov(9) page, like, the kernel API manual moment where we turn on SR-IOV and let the hardware live its best multi-function life ✨

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🌸 NAME 🌸

pci_enable_sriov — enable the SR-IOV capability 🎀

like literally that's it, that's the whole vibe. you're enabling SR-IOV. slay.

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🦋 SYNOPSIS 🦋

int pci_enable_sriov (struct pci_dev *dev , int nr_virtfn );

look at that signature, so clean, so iconic 💅

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🎀 ARGUMENTS 🎀

• dev — the PCI device 💻 ngl it's just the device, the main character of this whole function
• nr_virtfn — number of virtual functions to enable 🧚 how many VFs you want, fr fr, you gotta say the number

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💜 DESCRIPTION 💜

Returns 0 on success, or negative on failure. periodt. that's the whole description, no cap 🫶

like, that's the entire contract: 0 means you ate, negative means something went sideways 😭

## 💀 SEE ALSO 💀

Kernel file ./drivers/pci/iov.c — that's where the magic lives, iykyk 🔥

And the whole friend group, going in the order they're listed:

• pci_iov_get_pf_drvdata(9)
• pci_iov_init(9)
• pci_iov_release(9)
• pci_iov_remove(9)
• pci_iov_update_resource(9)
• pci_sriov_resource_alignment(9)
• pci_restore_iov_state(9)
• pci_vf_drivers_autoprobe(9)
• pci_iov_bus_range(9)
• pci_disable_sriov(9)
• pci_num_vf(9)
• pci_vfs_assigned(9)
• pci_sriov_set_totalvfs(9)
• pci_sriov_get_totalvfs(9)
• pci_sriov_configure_simple(9)
• pci_iov_vf_bar_set_size(9)
• pci_iov_vf_bar_get_sizes(9)

go read those too, bestie, they're all part of the same SR-IOV cinematic universe 🌈👑

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so yeah, that's the page 🎀 it came from ./drivers/pci, dated October 2026, and it's filed under pci_enable_sriov(9) — love that for us, mwah 💋✨🌸