From: Ayaz Abdulla Date: Thu, 5 Mar 2009 08:02:30 +0000 (+0000) Subject: forcedeth: performance changes X-Git-Tag: firefly_0821_release~15237^2~272 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6cef67a02f7994c97dbd716dbeb592265fb5b7b0;p=firefly-linux-kernel-4.4.55.git 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: Ayaz Abdulla Signed-off-by: David S. Miller --- diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 341a35117eae..28fc3357268a 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -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