Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c0efd52b8b1951c20878208fdcbab0468f816804
Commit: c0efd52b8b1951c20878208fdcbab0468f816804
Parent: b6e05a1b67a4b2e122d78a3f0b7ec7c779bd903c
Author: Olof Johansson <[EMAIL PROTECTED]>
AuthorDate: Wed Aug 22 09:12:52 2007 -0500
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Oct 10 16:50:56 2007 -0700
pasemi_mac: Enable L2 caching of packet headers
Enable settings to target l2 for the first few cachelines of the packet,
since
we'll access them to get to the various headers.
Signed-off-by: Olof Johansson <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/net/pasemi_mac.c | 5 ++++-
drivers/net/pasemi_mac.h | 8 ++++++++
2 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index be311e9..46d5c0e 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -206,7 +206,7 @@ static int pasemi_mac_setup_rx_resources(struct net_device
*dev)
PAS_DMA_RXCHAN_BASEU_SIZ(RX_RING_SIZE >> 2));
write_dma_reg(mac, PAS_DMA_RXCHAN_CFG(chan_id),
- PAS_DMA_RXCHAN_CFG_HBU(1));
+ PAS_DMA_RXCHAN_CFG_HBU(2));
write_dma_reg(mac, PAS_DMA_RXINT_BASEL(mac->dma_if),
PAS_DMA_RXINT_BASEL_BRBL(__pa(ring->buffers)));
@@ -215,6 +215,9 @@ static int pasemi_mac_setup_rx_resources(struct net_device
*dev)
PAS_DMA_RXINT_BASEU_BRBH(__pa(ring->buffers) >> 32) |
PAS_DMA_RXINT_BASEU_SIZ(RX_RING_SIZE >> 3));
+ write_dma_reg(mac, PAS_DMA_RXINT_CFG(mac->dma_if),
+ PAS_DMA_RXINT_CFG_DHL(2));
+
ring->next_to_fill = 0;
ring->next_to_clean = 0;
diff --git a/drivers/net/pasemi_mac.h b/drivers/net/pasemi_mac.h
index ef44364..fbbc17a 100644
--- a/drivers/net/pasemi_mac.h
+++ b/drivers/net/pasemi_mac.h
@@ -219,6 +219,14 @@ enum {
#define PAS_DMA_RXINT_RCMDSTA_ACT 0x00010000
#define PAS_DMA_RXINT_RCMDSTA_DROPS_M 0xfffe0000
#define PAS_DMA_RXINT_RCMDSTA_DROPS_S 17
+#define PAS_DMA_RXINT_CFG(i) (0x204+(i)*_PAS_DMA_RXINT_STRIDE)
+#define PAS_DMA_RXINT_CFG_DHL_M 0x07000000
+#define PAS_DMA_RXINT_CFG_DHL_S 24
+#define PAS_DMA_RXINT_CFG_DHL(x) (((x) << PAS_DMA_RXINT_CFG_DHL_S) & \
+ PAS_DMA_RXINT_CFG_DHL_M)
+#define PAS_DMA_RXINT_CFG_WIF 0x00000002
+#define PAS_DMA_RXINT_CFG_WIL 0x00000001
+
#define PAS_DMA_RXINT_INCR(i) (0x210+(i)*_PAS_DMA_RXINT_STRIDE)
#define PAS_DMA_RXINT_INCR_INCR_M 0x0000ffff
#define PAS_DMA_RXINT_INCR_INCR_S 0
-
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