PCIe/CXL Deep Dive · All levels
PCIe/CXL Deep Dive - Protocol to Silicon
Practical PCIe and CXL mastery across protocol layers, link training, transactions, coherency, memory expansion, RAS, and production debug closure.
Course promise
This is the execution-focused PCIe/CXL course for silicon and platform teams. It teaches how to reason from workload symptoms to protocol-level and link-level mechanisms, then close decisions with reproducible evidence, ownership, and rollback-safe validation.
PCIe/CXL systems fail across layers: LTSSM retrain loops, credit stalls, coherency races, HDM conflicts, and RAS escalations can mimic each other at the application level.
The course therefore uses one repeatable closure framework: symptom -> first failing layer -> mechanism -> artifact -> owner -> decision.
Translate PCIe/CXL architecture concepts into measurable engineering actions.
Diagnose link instability, credit stalls, and coherency excursions.
Connect LTSSM, enumeration, and CXL protocols to silicon and product risk.
Use evidence-first decision making across architecture, firmware, and validation teams.
Course map
protocol stack (TL/DL/PHY, ordering, credits)
-> enumeration and config space (BDF, capabilities, FW/OS handoff)
-> LTSSM link training (EQ, speed/width, recovery)
-> PCIe transactions (TLPs, tags, atomics, DMA/P2P)
-> CXL protocols (io, cache, mem, device types)
-> coherency and memory expansion (HDM, ownership, fabric-attached memory)
-> error handling and RAS (AER, poison, surprise-down)
-> debug, compliance, and performance tuningRelated topics
Full course index
Every section and lesson in this track — expand folders in the sidebar or jump from here.