From c0efd52b8b1951c20878208fdcbab0468f816804 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 22 Aug 2007 09:12:52 -0500 Subject: [PATCH] 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 Signed-off-by: Jeff Garzik --- drivers/net/pasemi_mac.c | 5 ++++- drivers/net/pasemi_mac.h | 8 ++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c index be311e9404..46d5c0eef7 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 ef443640c7..fbbc17a31d 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 -- 2.39.5