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Commit 32ec8033 authored by Dhananjay Phadke's avatar Dhananjay Phadke Committed by David S. Miller
Browse files

netxen: reduce memory footprint 



o reduce rx ring size from 8192 to 4096.
o cut down old huge lro buffers.

Signed-off-by: default avatarDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cdff1036

drivers/net/netxen/netxen_nic.h

+6 −6
Original line number Diff line number Diff line
@@ -146,7 +146,7 @@ 


#define MAX_RX_BUFFER_LENGTH		1760

#define MAX_RX_JUMBO_BUFFER_LENGTH 	8062

#define MAX_RX_LRO_BUFFER_LENGTH	((48*1024)-512)

#define MAX_RX_LRO_BUFFER_LENGTH	(8062)

#define RX_DMA_MAP_LEN			(MAX_RX_BUFFER_LENGTH - 2)

#define RX_JUMBO_DMA_MAP_LEN	\

	(MAX_RX_JUMBO_BUFFER_LENGTH - 2)
@@ -207,11 +207,11 @@ 


#define MAX_CMD_DESCRIPTORS		4096

#define MAX_RCV_DESCRIPTORS		16384

#define MAX_CMD_DESCRIPTORS_HOST	(MAX_CMD_DESCRIPTORS / 4)

#define MAX_RCV_DESCRIPTORS_1G		(MAX_RCV_DESCRIPTORS / 4)

#define MAX_RCV_DESCRIPTORS_10G		8192

#define MAX_JUMBO_RCV_DESCRIPTORS	1024

#define MAX_LRO_RCV_DESCRIPTORS		64

#define MAX_CMD_DESCRIPTORS_HOST	1024

#define MAX_RCV_DESCRIPTORS_1G		2048

#define MAX_RCV_DESCRIPTORS_10G		4096

#define MAX_JUMBO_RCV_DESCRIPTORS	512

#define MAX_LRO_RCV_DESCRIPTORS		8

#define MAX_RCVSTATUS_DESCRIPTORS	MAX_RCV_DESCRIPTORS

#define MAX_JUMBO_RCV_DESC	MAX_JUMBO_RCV_DESCRIPTORS

#define MAX_RCV_DESC		MAX_RCV_DESCRIPTORS

drivers/net/netxen/netxen_nic_ethtool.c

+4 −1
Original line number Diff line number Diff line
@@ -561,7 +561,10 @@ netxen_nic_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring) 
	}

	ring->tx_pending = adapter->max_tx_desc_count;



	ring->rx_max_pending = MAX_RCV_DESCRIPTORS;

	if (adapter->ahw.board_type == NETXEN_NIC_GBE)

		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;

	else

		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;

	ring->tx_max_pending = MAX_CMD_DESCRIPTORS_HOST;

	ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS;

	ring->rx_mini_max_pending = 0;