pcie_read_tlp_log(9)

💖 pcie_read_tlp_log(9) 💖

okay so bestie, welcome to the pcie_read_tlp_log kernel API man page — yes, that's the function name, and yes, it's giving "PCIe girlie who knows exactly what she's doing" energy. This is the manual for reading a TLP Header Log, and we're gonna get into it. 🎀

---

✨ NAME ✨

pcie_read_tlp_log — read TLP Header Log

Like, it reads the TLP Header Log. That's the whole vibe. No cap. 💅

---

🌸 SYNOPSIS 🌸

int pcie_read_tlp_log (struct pci_dev *dev , int where , int where2 ,
       unsigned int tlp_len , bool flit , struct pcie_tlp_log *log );

This is the exact signature, bestie — every parameter, every comma, every space. Don't come for me about formatting, this is literally how it's printed. 🫶

---

🦋 ARGUMENTS 🦋

• dev — the PCIe device. The main character of this whole operation, honestly. 💅
• where — PCI Config offset of TLP Header Log. That's where the Header Log lives, periodt.
• where2 — PCI Config offset of TLP Prefix Log. Second offset, second location, same icon energy. ✨
• tlp_len — TLP Log length (Header Log + TLP Prefix Log in DWORDs). Yes, it's the combined length, and yes, it's measured in DWORDs. 🧚
• flit — TLP Logged in Flit mode. A bool, so it's a yes/no situation, not a whole essay. 💀
• log — TLP Log structure to fill. This is the output bestie — the whole point of the function. 🍓

---

💜 DESCRIPTION 💜

So what does this actually do? It fills log from the TLP Header Log registers, e.g., AER or DPC. That's it. That's the function. Fill the log, slay the day. 🔥

No guessing, no extra lore — the original says it fills the log from the TLP Header Log registers, and gives AER and DPC as examples. That's the whole story. 👑

---

🌈 RETURN 🌈

• 0 on success and filled TLP Log structure. We love a successful fill. ✨
• <0 on error. Not iconic, but it happens. 😭

bestie please actually check the return value, okay? <0 means something went wrong and the log did not get its moment. 🙈

---

⭐ SEE ALSO ⭐

• Kernel file ./drivers/pci/pcie/tlp.c
• aer_tlp_log_len(9)
• dpc_tlp_log_len(9)
• pcie_print_tlp_log(9)

iykyk — go read those next if you want the full PCIe TLP lore. 🦋

---

and that's the page, bestie! this manual page is from ./drivers/pci/pcie, dated October 2026, and it's literally called pcie_read_tlp_log(9) — so you already know what time it is. periodt. 💅✨🎀