Broadcom NetXtreme/NetLink BCM5718 Series

IntroductionBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 89
Figure 14: Receive Buffer Descriptor Cycle
RX
Return
Ring 1
RX
Return
Ring 2
RX
Return
Ring 3
RX
Return
Ring 4
DMA Read Engine
Local
Memory
List
Initiator
DMA Write Engine
Interrupt
Service
Routine
RX Indicate Available
Rx MAC
RX Return Packet
Protocol Interface
(i.e. TCP/IP)
Device DriverMAC
Host
Coalescing
Engine
RX
Jumbo
Producer
Ring
RX
Standard
Producer
Ring