Under some circumstances, using WC without the WC fifo is faster.
So we make it possible to tune wc_fifo with a module parameter.
Signed-off-by: Brice Goglin <[EMAIL PROTECTED]>
---
drivers/net/myri10ge/myri10ge.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
Index: linux-rc/drivers/net/myri10ge/myri10ge.c
===================================================================
--- linux-rc.orig/drivers/net/myri10ge/myri10ge.c 2007-01-07
16:57:45.000000000 +0100
+++ linux-rc/drivers/net/myri10ge/myri10ge.c 2007-01-09 19:30:43.000000000
+0100
@@ -274,6 +274,10 @@
module_param(myri10ge_fill_thresh, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(myri10ge_fill_thresh, "Number of empty rx slots allowed\n");
+static int myri10ge_wcfifo = 1;
+module_param(myri10ge_wcfifo, int, S_IRUGO);
+MODULE_PARM_DESC(myri10ge_wcfifo, "Enable WC Fifo when WC is enabled\n");
+
#define MYRI10GE_FW_OFFSET 1024*1024
#define MYRI10GE_HIGHPART_TO_U32(X) \
(sizeof (X) == 8) ? ((u32)((u64)(X) >> 32)) : (0)
@@ -1714,7 +1718,7 @@
goto abort_with_irq;
}
- if (mgp->mtrr >= 0) {
+ if (myri10ge_wcfifo && mgp->mtrr >= 0) {
mgp->tx.wc_fifo = (u8 __iomem *) mgp->sram + MXGEFW_ETH_SEND_4;
mgp->rx_small.wc_fifo =
(u8 __iomem *) mgp->sram + MXGEFW_ETH_RECV_SMALL;
-
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