pcie_bwctrl_select_speed(9)

okay so bestie, this is the pcie_bwctrl_select_speed(9) page from the Kernel API Manual, and it's literally here to help you Select Target Link Speed — no cap, that's the whole vibe. 💅✨

🌸 NAME 🌸

pcie_bwctrl_select_speed — Select Target Link Speed 🎀

✨ SYNOPSIS ✨

u16 pcie_bwctrl_select_speed (struct pci_dev *port , enum pci_bus_speed speed_req );

🫶 ARGUMENTS 🫶

• port — the PCIe Port, aka the port bestie we're working with 💖
• speed_req — the Requested PCIe Link Speed, aka the speed you're asking for ⭐

💫 DESCRIPTION 💫

okay so here's the tea: this function selects the Target Link Speed by taking into account the Supported Link Speeds of both the Root Port and the Endpoint. That's the whole job — it's giving "matchmaker for link speeds" energy. 🦋

🔥 RETURN 🔥

It returns the Target Link Speed: 1=2.5GT/s, 2=5GT/s, 3=8GT/s, etc. 😭💖

🌈 SEE ALSO 🌈

• Kernel file ./drivers/pci/pcie/bwctrl.c 📁
• struct pcie_bwctrl_data(9) 🧚
• pcie_set_target_speed(9) 👑

okay bestie, that's the page! It hangs out in ./drivers/pci/pcie, it's dated October 2026, and it's the manual for pcie_bwctrl_select_speed(9) — go slay those link speeds 💅💖🎀