pci_ide_stream_alloc(9)

✨ NAME ✨

okay so welcome to the pci_ide_stream_alloc(9) page from the Kernel API Manual 💖

pci_ide_stream_alloc — Reserve stream indices and probe for settings ✨

🦋 SYNOPSIS 🦋

struct pci_ide * pci_ide_stream_alloc (struct pci_dev *pdev );

💅 ARGUMENTS 💅

• pdev — IDE capable PCIe Endpoint Physical Function. like, that’s the whole vibe of this argument, bestie 🫶

🔥 DESCRIPTION 🔥

okay so first thing: this function retrieves the Requester ID range of pdev for programming its Root Port IDE RID Association registers. and conversely — iconic word — it retrieves the Requester ID of the Root Port for programming pdev's IDE RID Association registers. it’s giving mutual register setup energy, no cap 💅

then it allocates a Selective IDE Stream Register Block instance per port. yes, per port. that’s the assignment ✨

next it allocates a platform stream resource from the associated host bridge, and retrieves stream association parameters for the Requester ID range and address range restrictions for the stream. that’s the whole tea ☕

🌈 SEE ALSO 🌈

go read these next, bestie 🫶

• Kernel file ./drivers/pci/ide.c
• pci_ide_stream_free(9)
• pci_ide_stream_release(9)
• pci_ide_stream_register(9)
• pci_ide_stream_unregister(9)
• pci_ide_stream_to_regs(9)
• pci_ide_stream_setup(9)
• pci_ide_stream_teardown(9)
• pci_ide_stream_enable(9)
• pci_ide_stream_disable(9)
• pci_ide_set_nr_streams(9)

mwah 💋 — source/version: ./drivers/pci · date: October 2026 · catch u in the pci_ide_stream_alloc(9) group chat 🌈✨