AcoSail/kernel_optimize_test
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pasemi_mac: Enable L2 caching of packet headers

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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 <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Olof Johansson 2007-08-22 09:12:52 -05:00 committed by David S. Miller
parent b6e05a1b67
commit c0efd52b8b
2 changed files with 12 additions and 1 deletions
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5
drivers/net/pasemi_mac.c
View File

@ -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;

8
drivers/net/pasemi_mac.h
View File

@ -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