Commit 87731f0c authored Oct 11, 2018 by Arthur Kiyanovski Committed by David S. Miller Oct 11, 2018

net: ena: change rx copybreak default to reduce kernel memory pressure



Improves socket memory utilization when receiving packets larger
than 128 bytes (the previous rx copybreak) and smaller than 256 bytes.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 0574bb80

drivers/net/ethernet/amazon/ena/ena_netdev.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -81,7 +81,7 @@
		#define ENA_DEFAULT_RING_SIZE (1024)

		#define ENA_TX_WAKEUP_THRESH (MAX_SKB_FRAGS + 2)
		#define ENA_DEFAULT_RX_COPYBREAK (128 - NET_IP_ALIGN)
		#define ENA_DEFAULT_RX_COPYBREAK (256 - NET_IP_ALIGN)

		/* limit the buffer size to 600 bytes to handle MTU changes from very
		* small to very large, in which case the number of buffers per packet

Admin message