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

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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>
This commit is contained in:
Arthur Kiyanovski 2018-10-11 11:26:24 +03:00 committed by David S. Miller
parent 0574bb806d
commit 87731f0c68
1 changed files with 1 additions and 1 deletions
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drivers/net/ethernet/amazon/ena/ena_netdev.h
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@ -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