PCI-Express introduction

[#1]

PCI-Express introduction

1. PCIe Device Type And Topology
2. PCIe system architecture

         2.1 Transaction Layer

         2.2 Data link layer

         2.3 Physical Layer

3. Interrupts Mechanism
4. PCIe enumeration and resource assignment

[shivam_jksel]

Hi,
can you tell me the file/code in linux kernel for the PCIe RP controller driver and also for PCIe EP controller driver?
also how does a RC Controller driver differs from the EP controller driver?
what are the role/responsibility/functions of a RC and EP controllers?