pci_epc_linkup(9)
π pci_epc_linkup(9) π
okay bestie, so this is a page straight out of the Kernel API Manual β like, the actual kernel docs, and yes we're gonna make it cute. buckle up π
β¨ NAME β¨
pci_epc_linkup β the little function that tells the EPF device "hey girl, the EPC device just established a connection with the Root Complex" π
π¦ SYNOPSIS π¦
void pci_epc_linkup (struct pci_epc *epc );
that's it. that's the whole vibe. void, one arg, no drama πΈ
π ARGUMENTS π
epcβ the EPC device that just established a link with the host. this is the main character of the story, periodt π
π DESCRIPTION π
so you invoke pci_epc_linkup to notify the EPF device that the EPC device has established a connection with the Root Complex. that's the whole job. it's giving "messenger bestie" energy β it doesn't make the link happen, it just runs and tells everyone the link is up π«Ά
no cap, that's literally it. short function, big news to deliver β¨
π SEE ALSO π
like, go read these next, iykyk β they're all hanging out in the kernel file ./drivers/pci/endpoint/pci-epc-core.c:
pci_epc_put(9)pci_epc_get(9)pci_epc_get_first_free_bar(9)pci_epc_get_next_free_bar(9)pci_epc_get_features(9)pci_epc_get_aux_resources_count(9)pci_epc_get_aux_resources(9)pci_epc_stop(9)pci_epc_start(9)pci_epc_raise_irq(9)pci_epc_map_msi_irq(9)pci_epc_get_msi(9)pci_epc_set_msi(9)pci_epc_get_msix(9)pci_epc_set_msix(9)pci_epc_unmap_addr(9)pci_epc_map_addr(9)pci_epc_mem_map(9)pci_epc_mem_unmap(9)pci_epc_clear_bar(9)pci_epc_set_bar(9)pci_epc_bar_size_to_rebar_cap(9)pci_epc_write_header(9)pci_epc_add_epf(9)pci_epc_remove_epf(9)pci_epc_linkdown(9)pci_epc_init_notify(9)pci_epc_notify_pending_init(9)pci_epc_deinit_notify(9)pci_epc_bus_master_enable_notify(9)pci_epc_destroy(9)__pci_epc_create(9)__devm_pci_epc_create(9)
like, the whole friend group fr fr π₯ β especially pci_epc_linkdown(9), the breakup counterpart π
and that's the page!! mwah π this one lives over in ./drivers/pci/endpoint, dated October 2026 β slay, go forth and notify responsibly bestie πππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms