epf_ntb_epc_init_interface(9)
π epf_ntb_epc_init_interface β like, the whole vibe β¨
Okay bestie, so this is from the Kernel API Manual (yes, the kernel has a manual, and yes it's iconic), and today we're reading up on epf_ntb_epc_init_interface. Buckle up π
πΈ NAME πΈ
epf_ntb_epc_init_interface β initialize the NTB interface. That's it, that's the whole thing, no cap π
β SYNOPSIS β
int epf_ntb_epc_init_interface (struct epf_ntb *ntb , enum
pci_epc_interface_type type );
Literally just two arguments and a return value, we love a low-maintenance queen π
π¦ ARGUMENTS π¦
ntbβ the NTB device that's out here facilitating communication betweenHOST1andHOST2fr fr, it's giving matchmaker energy π«Άtypeβ either thePRIMARYinterface or theSECONDARYinterface. Pick one, bestie, those are the options π
π₯ DESCRIPTION π₯
So basically this is the wrapper function that initializes one particular EPC interface, and then starts the workqueue that checks for commands coming from the host. The way it does all that is by writing to the EP controller hardware to configure it β like, actual hardware, real deal, main character energy π₯
That's the whole job: init the interface, kick off the workqueue, poke the HW so it's configured correctly. Slay β¨
Ngl, no hidden lore here β the description is short and sweet, and what you see is what you get π
π SEE ALSO π
The kernel file lives right here: ./drivers/pci/endpoint/functions/pci-epf-ntb.c β go read the source if you're that girl π§
And here's the whole friend group, all the siblings and cousins, in order:
epf_ntb_link_up(9)epf_ntb_configure_mw(9)epf_ntb_teardown_mw(9)epf_ntb_configure_msi(9)epf_ntb_configure_msix(9)epf_ntb_configure_db(9)epf_ntb_teardown_db(9)epf_ntb_cmd_handler(9)epf_ntb_peer_spad_bar_clear(9)epf_ntb_peer_spad_bar_set(9)epf_ntb_config_sspad_bar_clear(9)epf_ntb_config_sspad_bar_set(9)epf_ntb_config_spad_bar_free(9)epf_ntb_config_spad_bar_alloc(9)epf_ntb_config_spad_bar_alloc_interface(9)epf_ntb_free_peer_mem(9)epf_ntb_db_mw_bar_clear(9)epf_ntb_db_mw_bar_cleanup(9)epf_ntb_configure_interrupt(9)epf_ntb_alloc_peer_mem(9)epf_ntb_db_mw_bar_init(9)epf_ntb_epc_create_interface(9)epf_ntb_epc_create(9)epf_ntb_init_epc_bar_interface(9)epf_ntb_init_epc_bar(9)epf_ntb_epc_cleanup_interface(9)epf_ntb_epc_cleanup(9)epf_ntb_epc_init(9)epf_ntb_bind(9)epf_ntb_unbind(9)epf_ntb_add_cfs(9)epf_ntb_probe(9)
Like, that is a whole squad and every single one of them is invited to the group chat π
Mwah π This page was brought to you by the fine folks over at ./drivers/pci/endpoint/functions, dated October 2026, and it's epf_ntb_epc_init_interface(9) all the way down. Go configure some hardware, bestie β you got this ππ
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