From: Olof Johansson <olof@lixom•net>
To: linuxppc-dev@ozlabs•org
Subject: [patch 08/35] pasemi_mac: Enable L2 caching of packet headers
Date: Thu, 05 Jul 2007 12:02:41 -0500 [thread overview]
Message-ID: <20070705170235.599200000@lixom.net> (raw)
In-Reply-To: 20070705170233.258351000@lixom.net
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>
Index: netdev-2.6/drivers/net/pasemi_mac.c
===================================================================
--- netdev-2.6.orig/drivers/net/pasemi_mac.c
+++ netdev-2.6/drivers/net/pasemi_mac.c
@@ -216,7 +216,7 @@ static int pasemi_mac_setup_rx_resources
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)));
@@ -225,6 +225,9 @@ static int pasemi_mac_setup_rx_resources
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;
Index: netdev-2.6/drivers/net/pasemi_mac.h
===================================================================
--- netdev-2.6.orig/drivers/net/pasemi_mac.h
+++ netdev-2.6/drivers/net/pasemi_mac.h
@@ -218,6 +218,14 @@ 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
--
next prev parent reply other threads:[~2007-07-05 17:03 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-05 17:02 [patch 00/35] PA Semi patch set Olof Johansson
2007-07-05 17:02 ` [patch 01/35] pasemi: rename platform Olof Johansson
2007-07-08 23:52 ` Stephen Rothwell
2007-07-09 0:18 ` Olof Johansson
2007-07-09 7:23 ` Stephen Rothwell
2007-07-09 17:19 ` Olof Johansson
2007-07-09 17:21 ` Olof Johansson
2007-07-05 17:02 ` [patch 02/35] PA Semi EDAC driver Olof Johansson
2007-07-05 17:02 ` [patch 03/35] Change powerpc64 ioaddr_t to u_int Olof Johansson
2007-07-05 17:02 ` [patch 04/35] pasemi_mac: Fix TX interrupt threshold Olof Johansson
2007-07-05 17:02 ` [patch 05/35] pasemi_mac: Clean TX ring in poll Olof Johansson
2007-07-05 17:02 ` [patch 06/35] pasemi_mac: Abstract out register access Olof Johansson
2007-07-05 17:02 ` [patch 07/35] pasemi_mac: stop using the pci config space accessors for register read/writes Olof Johansson
2007-07-26 21:25 ` Marian Balakowicz
2007-07-28 8:35 ` Olof Johansson
2007-08-01 9:27 ` Marian Balakowicz
2007-07-05 17:02 ` Olof Johansson [this message]
2007-07-05 17:02 ` [patch 09/35] pasemi_mac: Simplify memcpy for short receives Olof Johansson
2007-07-05 17:02 ` [patch 10/35] pasemi_mac: Minor performance tweaks Olof Johansson
2007-07-05 17:02 ` [patch 11/35] pasemi_mac: Reduce locking when cleaning TX ring Olof Johansson
2007-07-05 17:02 ` [patch 12/35] pasemi_mac: Enable LLTX Olof Johansson
2007-07-05 17:02 ` [patch 13/35] Cleanup marvell phy driver init Olof Johansson
2007-07-05 17:02 ` [patch 14/35] Add 88E1112 PHY ID to the marvell driver Olof Johansson
2007-07-05 17:02 ` [patch 15/35] Export HID registers via sysfs Olof Johansson
2007-07-05 17:02 ` [patch 16/35] Electra ide platform glue Olof Johansson
2007-07-05 17:02 ` [patch 17/35] CF driver for PA Semi Electra Olof Johansson
2007-07-05 17:02 ` [patch 18/35] Spread IRQs among cpus by default Olof Johansson
2007-07-05 17:02 ` [patch 19/35] Improve machine check output Olof Johansson
2007-07-05 17:02 ` [patch 20/35] Remove idle_spin function pointer Olof Johansson
2007-07-05 17:02 ` [patch 21/35] Use MSR_PMM to disable profiling of the idle loop Olof Johansson
2007-07-05 17:02 ` [patch 22/35] Work around errata 4111 Olof Johansson
2007-07-05 17:02 ` [patch 23/35] Work around UART erratas Olof Johansson
2007-07-05 17:02 ` [patch 24/35] Work around errata 4628 Olof Johansson
2007-07-05 17:02 ` [patch 25/35] Work around errata 4025 Olof Johansson
2007-07-05 17:02 ` [patch 26/35] Work around errata 4713 Olof Johansson
2007-07-05 17:03 ` [patch 27/35] Work around errata 4290 Olof Johansson
2007-07-05 18:50 ` Gabriel Paubert
2007-07-05 19:26 ` Olof Johansson
2007-07-05 17:03 ` [patch 28/35] Work around errata 4712 Olof Johansson
2007-07-05 17:03 ` [patch 29/35] Work around errata 4910 Olof Johansson
2007-07-05 17:03 ` [patch 30/35] Disable PURR on pa6t Olof Johansson
2007-07-05 17:03 ` [patch 31/35] Work around errata 4161 Olof Johansson
2007-07-05 17:03 ` [patch 32/35] Dont reset openpic on init Olof Johansson
2007-07-05 17:03 ` [patch 33/35] Work around errata 5667 Olof Johansson
2007-07-05 17:03 ` [patch 34/35] Work around errata 4505 Olof Johansson
2007-07-05 17:03 ` [patch 35/35] Work around errata 5652 Olof Johansson
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