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										 |  |  | config DCB | 
					
						
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										 |  |  | 	bool "Data Center Bridging support" | 
					
						
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										 |  |  | 	default n | 
					
						
							|  |  |  | 	---help--- | 
					
						
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										 |  |  | 	  This enables support for configuring Data Center Bridging (DCB) | 
					
						
							|  |  |  | 	  features on DCB capable Ethernet adapters via rtnetlink.  Say 'Y' | 
					
						
							|  |  |  | 	  if you have a DCB capable Ethernet adapter which supports this | 
					
						
							|  |  |  | 	  interface and you are connected to a DCB capable switch. | 
					
						
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 | 
					
						
							|  |  |  | 	  DCB is a collection of Ethernet enhancements which allow DCB capable | 
					
						
							|  |  |  | 	  NICs and switches to support network traffic with differing | 
					
						
							|  |  |  | 	  requirements (highly reliable, no drops vs. best effort vs. low | 
					
						
							|  |  |  | 	  latency) to co-exist on Ethernet. | 
					
						
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 | 
					
						
							|  |  |  | 	  DCB features include: | 
					
						
							|  |  |  | 	    Enhanced Transmission Selection (aka Priority Grouping) - provides a | 
					
						
							|  |  |  | 	      framework for assigning bandwidth guarantees to traffic classes. | 
					
						
							|  |  |  | 	    Priority-based Flow Control (PFC) - a MAC control pause frame which | 
					
						
							|  |  |  | 	      works at the granularity of the 802.1p priority instead of the | 
					
						
							|  |  |  | 	      link (802.3x). | 
					
						
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							|  |  |  | 	  If unsure, say N. |