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| author | Linas Vepstas <linas@austin.ibm.com> | 2007-06-11 13:29:03 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-06-20 19:09:33 -0400 |
| commit | 128c6e2e519fe7d0a15de04f3dde00700145cec4 (patch) | |
| tree | 09b85b9e6aef25ac912e533452d3c2fcf34eb832 | |
| parent | c3d1182a538fd99b6fe5effa1ab54521c0efb1d1 (diff) | |
| download | blackbird-op-linux-128c6e2e519fe7d0a15de04f3dde00700145cec4.tar.gz blackbird-op-linux-128c6e2e519fe7d0a15de04f3dde00700145cec4.zip | |
spidernet: turn off descriptor chain end interrupt.
At some point, the transmit descriptor chain end interrupt (TXDCEINT)
was turned on. This is a mistake; and it damages small packet
transmit performance, as it results in a huge storm of interrupts.
Turn it off.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/net/spider_net.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/spider_net.h b/drivers/net/spider_net.h index f457bce00e5c..1d054aa71504 100644 --- a/drivers/net/spider_net.h +++ b/drivers/net/spider_net.h @@ -222,6 +222,7 @@ extern char spider_net_driver_name[]; #define SPIDER_NET_GDTBSTA 0x00000300 #define SPIDER_NET_GDTDCEIDIS 0x00000002 #define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \ + SPIDER_NET_GDTDCEIDIS | \ SPIDER_NET_GDTBSTA #define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003 @@ -332,8 +333,7 @@ enum spider_net_int2_status { SPIDER_NET_GRISPDNGINT }; -#define SPIDER_NET_TXINT ( (1 << SPIDER_NET_GDTFDCINT) | \ - (1 << SPIDER_NET_GDTDCEINT) ) +#define SPIDER_NET_TXINT (1 << SPIDER_NET_GDTFDCINT) /* We rely on flagged descriptor interrupts */ #define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) ) |
