pci_iov_update_resource(9)

💖 NAME 💖

okay so bestie, this is pci_iov_update_resource(9) straight out of the Kernel API Manual, and the whole mood is: update a VF BAR. that’s the name, that’s the function, we’re moving 🫶✨

🎀 SYNOPSIS 🎀

void pci_iov_update_resource (struct pci_dev *dev , int resno );

no cap, it returns void, and it takes a struct pci_dev *dev plus an int resno. the spacing in that line is exactly the vibe — copy it as-is, iykyk 💅.

🦋 ARGUMENTS 🦋

• dev — the PCI device. literally the device we’re working with.
• resno — the resource number. the number of the resource, bestie.

🌈 DESCRIPTION 🌈

okay so here’s the actual tea: this function updates a VF BAR in the SR-IOV capability of a PF. that’s it. that’s the whole description. it’s giving short and iconic, and honestly sometimes that’s enough 💖.

👑 SEE ALSO 👑

Kernel file ./drivers/pci/iov.c — and bestie, the SEE ALSO list has this whole friend group:

• pci_iov_get_pf_drvdata(9)
• pci_iov_init(9)
• pci_iov_release(9)
• pci_iov_remove(9)
• pci_sriov_resource_alignment(9)
• pci_restore_iov_state(9)
• pci_vf_drivers_autoprobe(9)
• pci_iov_bus_range(9)
• pci_enable_sriov(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)

that’s the page, bestie 💅✨ source/version is ./drivers/pci, the date on this one is October 2026, and the title is pci_iov_update_resource(9) — go update that VF BAR responsibly, mwah 🫶💖🎀