From: Arthur Kiyanovski Date: Thu, 11 Oct 2018 08:26:24 +0000 (+0300) Subject: net: ena: change rx copybreak default to reduce kernel memory pressure X-Git-Tag: archive/raspbian/5.2.17-1+rpi1^2^2^2^2~10 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=e82f2a2807f773ab9c4115bf6e9ecfd29fd32894;p=linux.git 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 Signed-off-by: David S. Miller Gbp-Pq: Topic features/all/ena Gbp-Pq: Name 0010-net-ena-change-rx-copybreak-default-to-reduce-kernel.patch --- diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 0cf35ae7788..d241dfc542c 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -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