Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6ebc087a10c3953d59a61f362bd532f2d9468d1b
Commit:     6ebc087a10c3953d59a61f362bd532f2d9468d1b
Parent:     553af56775b3f23bf64f87090ab81a62bef2837b
Author:     Brice Goglin <[EMAIL PROTECTED]>
AuthorDate: Tue Jan 9 21:04:25 2007 +0100
Committer:  Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Thu Jan 18 12:02:41 2007 -0500

    myri10ge: make wc_fifo usage load-time tunable
    
    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]>
    Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
 drivers/net/myri10ge/myri10ge.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 07cf574..b06e0eb 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -274,6 +274,10 @@ static int myri10ge_fill_thresh = 256;
 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 @@ static int myri10ge_open(struct net_device *dev)
                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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