Commit 6cef67a0 authored by Ayaz Abdulla's avatar Ayaz Abdulla Committed by David S. Miller

forcedeth: performance changes

This patch modifies the throughput mode poll settings to reduce the
number of interrupts. This is only used by older hardware that need a
timer irq in throughput mode.

Secondly, this patch increases the default rx ring from 128 to 512. This
drastically improves bandwidth utilization for small packets sizes i.e
512 bytes.
Signed-off-by: default avatarAyaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4145ade2
......@@ -128,7 +128,7 @@ enum {
* NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
*/
NvRegPollingInterval = 0x00c,
#define NVREG_POLL_DEFAULT_THROUGHPUT 970 /* backup tx cleanup if loop max reached */
#define NVREG_POLL_DEFAULT_THROUGHPUT 65535 /* backup tx cleanup if loop max reached */
#define NVREG_POLL_DEFAULT_CPU 13
NvRegMSIMap0 = 0x020,
NvRegMSIMap1 = 0x024,
......@@ -463,7 +463,7 @@ union ring_type {
/* General driver defaults */
#define NV_WATCHDOG_TIMEO (5*HZ)
#define RX_RING_DEFAULT 128
#define RX_RING_DEFAULT 512
#define TX_RING_DEFAULT 256
#define RX_RING_MIN 128
#define TX_RING_MIN 64
......
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