Circuit for simultaneously analyzing performance and bugs and method thereof

1. A circuit for simultaneously analyzing performance and bugs, the circuit comprising:

a mapping unit for mapping commands transmitted to a USB 3.0 host through a peripheral component interconnect express (PCIE) interface and internal events of the USB 3.0 host to a packet of a USB 3.0 bus, wherein the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface are commands of an extensible host controller interface (xHCI) specified in an extensible host controller interface specification; and

a USB 3.0 data flow analyzer for analyzing performance and bugs of the USB 3.0 host through executed conditions of the commands transmitted to the USB 3.0 host and the internal events stored in the packet of the USB 3.0 bus.

2. The circuit of claim 1 , wherein mapping the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and the internal events of the USB 3.0 host to the packet of the USB 3.0 bus comprises:

adding a predetermined value to original addresses corresponding to the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and original addresses corresponding to the internal events of the USB 3.0 host to generate new addresses corresponding to the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and new addresses corresponding to the internal events of the USB 3.0 host; and

mapping the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and the internal events of the USB 3.0 host to the packet of the USB 3.0 bus according to the new addresses corresponding to the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and the new addresses corresponding to the internal events of the USB 3.0 host.

3. The circuit of claim 1 , wherein the packet of the USB 3.0 bus is a ping packet.

4. A method for simultaneously analyzing performance and bugs, the method comprising:

mapping commands transmitted to a USB 3.0 host through a peripheral component interconnect express interface and internal events of the USB 3.0 host to a packet of a USB 3.0 bus, wherein the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface are commands of an extensible host controller interface (xHCI) specified in an extensible host controller interface specification; and

analyzing performance and bugs of the USB 3.0 host through executed conditions of the commands transmitted to the USB 3.0 host and the internal events stored in the packet of the USB 3.0 bus.

5. The method of claim 4 , wherein mapping the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and the internal events of the USB 3.0 host to the packet of the USB 3.0 bus comprises:

adding a predetermined value to original addresses corresponding to the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and original addresses corresponding to the internal events of the USB 3.0 host to generate new addresses corresponding to the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and new addresses corresponding to the internal events of the USB 3.0 host; and

mapping the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and the internal events of the USB 3.0 host to the packet of the USB 3.0 bus according to the new addresses corresponding to the commands transmitted to the USB 3.0 host through the peripheral component interconnect express interface and the new addresses corresponding to the internal events of the USB 3.0 host.

6. The method of claim 4 , wherein the packet of the USB 3.0 bus is a ping packet.