Differential D8803 Diff 31331 head/sys/dev/virtio/network/if_vtnetvar.h

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	/*			/*
	* Used to preallocate the Vq indirect descriptors. The first segment			* Used to preallocate the Vq indirect descriptors. The first segment
	* is reserved for the header, except for mergeable buffers since the			* is reserved for the header, except for mergeable buffers since the
	* header is placed inline with the data.			* header is placed inline with the data.
	*/			*/
	#define VTNET_MRG_RX_SEGS 1			#define VTNET_MRG_RX_SEGS 1
	#define VTNET_MIN_RX_SEGS 2			#define VTNET_MIN_RX_SEGS 2
	#define VTNET_MAX_RX_SEGS 34			#define VTNET_MAX_RX_SEGS 34
	#define VTNET_MIN_TX_SEGS 4			#define VTNET_MIN_TX_SEGS 32
	#define VTNET_MAX_TX_SEGS 64			#define VTNET_MAX_TX_SEGS 64

	/*			/*
	* Assert we can receive and transmit the maximum with regular			* Assert we can receive and transmit the maximum with regular
	* size clusters.			* size clusters.
	*/			*/
	CTASSERT(((VTNET_MAX_RX_SEGS - 1) * MCLBYTES) >= VTNET_MAX_RX_SIZE);			CTASSERT(((VTNET_MAX_RX_SEGS - 1) * MCLBYTES) >= VTNET_MAX_RX_SIZE);
	CTASSERT(((VTNET_MAX_TX_SEGS - 1) * MCLBYTES) >= VTNET_MAX_MTU);			CTASSERT(((VTNET_MAX_TX_SEGS - 1) * MCLBYTES) >= VTNET_MAX_MTU);
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