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| author | Ayaz Abdulla <aabdulla@nvidia.com> | 2009-03-05 08:02:30 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-10 05:29:50 -0700 |
| commit | 6cef67a02f7994c97dbd716dbeb592265fb5b7b0 (patch) | |
| tree | 711f8fd66f7717651e5661ed81c93305d03c9989 | |
| parent | 4145ade2bb265b34331265bfa2221e40b069b3ca (diff) | |
| download | kernel-crypto-6cef67a02f7994c97dbd716dbeb592265fb5b7b0.tar.gz kernel-crypto-6cef67a02f7994c97dbd716dbeb592265fb5b7b0.tar.xz kernel-crypto-6cef67a02f7994c97dbd716dbeb592265fb5b7b0.zip | |
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 <aabdulla@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/forcedeth.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 341a35117ea..28fc3357268 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 |