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net: remove ixp2000 ethernet driver

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The platform is removed, so there are no users of this driver.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Cc: Alex Duyck <alexander.h.duyck@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rob Herring 2012-04-03 15:34:00 +00:00 committed by David S. Miller
parent e7f8c1fe17
commit 695e00789a
20 changed files with 3 additions and 2549 deletions
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6
MAINTAINERS
View File

@ -3516,12 +3516,6 @@ M: Deepak Saxena <dsaxena@plexity.net>
S: Maintained
F: drivers/char/hw_random/ixp4xx-rng.c
INTEL IXP2000 ETHERNET DRIVER
M: Lennert Buytenhek <kernel@wantstofly.org>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/xscale/ixp2000/
INTEL ETHERNET DRIVERS (e100/e1000/e1000e/igb/igbvf/ixgb/ixgbe/ixgbevf)
M: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
M: Jesse Brandeburg <jesse.brandeburg@intel.com>

2
drivers/net/ethernet/intel/Kconfig
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@ -7,7 +7,7 @@ config NET_VENDOR_INTEL
default y
depends on PCI || PCI_MSI || ISA || ISA_DMA_API || ARM || \
ARCH_ACORN || MCA || MCA_LEGACY || SNI_RM || SUN3 || \
GSC || BVME6000 || MVME16x || ARCH_ENP2611 || \
GSC || BVME6000 || MVME16x || \
(ARM && ARCH_IXP4XX && IXP4XX_NPE && IXP4XX_QMGR) || \
EXPERIMENTAL
---help---

6
drivers/net/ethernet/xscale/Kconfig
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@ -5,8 +5,8 @@
config NET_VENDOR_XSCALE
bool "Intel XScale IXP devices"
default y
depends on NET_VENDOR_INTEL && ((ARM && ARCH_IXP4XX && \
IXP4XX_NPE && IXP4XX_QMGR) || ARCH_ENP2611)
depends on NET_VENDOR_INTEL && (ARM && ARCH_IXP4XX && \
IXP4XX_NPE && IXP4XX_QMGR)
---help---
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
@ -27,6 +27,4 @@ config IXP4XX_ETH
Say Y here if you want to use built-in Ethernet ports
on IXP4xx processor.
source "drivers/net/ethernet/xscale/ixp2000/Kconfig"
endif # NET_VENDOR_XSCALE

1
drivers/net/ethernet/xscale/Makefile
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@ -2,5 +2,4 @@
# Makefile for the Intel XScale IXP device drivers.
#
obj-$(CONFIG_ENP2611_MSF_NET) += ixp2000/
obj-$(CONFIG_IXP4XX_ETH) += ixp4xx_eth.o

6
drivers/net/ethernet/xscale/ixp2000/Kconfig
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@ -1,6 +0,0 @@
config ENP2611_MSF_NET
tristate "Radisys ENP2611 MSF network interface support"
depends on ARCH_ENP2611
---help---
This is a driver for the MSF network interface unit in
the IXP2400 on the Radisys ENP2611 platform.

3
drivers/net/ethernet/xscale/ixp2000/Makefile
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@ -1,3 +0,0 @@
obj-$(CONFIG_ENP2611_MSF_NET) += enp2611_mod.o
enp2611_mod-objs := caleb.o enp2611.o ixp2400-msf.o ixpdev.o pm3386.o

136
drivers/net/ethernet/xscale/ixp2000/caleb.c
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@ -1,136 +0,0 @@
/*
* Helper functions for the SPI-3 bridge FPGA on the Radisys ENP2611
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <asm/io.h>
#include "caleb.h"
#define CALEB_IDLO 0x00
#define CALEB_IDHI 0x01
#define CALEB_RID 0x02
#define CALEB_RESET 0x03
#define CALEB_INTREN0 0x04
#define CALEB_INTREN1 0x05
#define CALEB_INTRSTAT0 0x06
#define CALEB_INTRSTAT1 0x07
#define CALEB_PORTEN 0x08
#define CALEB_BURST 0x09
#define CALEB_PORTPAUS 0x0A
#define CALEB_PORTPAUSD 0x0B
#define CALEB_PHY0RX 0x10
#define CALEB_PHY1RX 0x11
#define CALEB_PHY0TX 0x12
#define CALEB_PHY1TX 0x13
#define CALEB_IXPRX_HI_CNTR 0x15
#define CALEB_PHY0RX_HI_CNTR 0x16
#define CALEB_PHY1RX_HI_CNTR 0x17
#define CALEB_IXPRX_CNTR 0x18
#define CALEB_PHY0RX_CNTR 0x19
#define CALEB_PHY1RX_CNTR 0x1A
#define CALEB_IXPTX_CNTR 0x1B
#define CALEB_PHY0TX_CNTR 0x1C
#define CALEB_PHY1TX_CNTR 0x1D
#define CALEB_DEBUG0 0x1E
#define CALEB_DEBUG1 0x1F
static u8 caleb_reg_read(int reg)
{
u8 value;
value = *((volatile u8 *)(ENP2611_CALEB_VIRT_BASE + reg));
// printk(KERN_INFO "caleb_reg_read(%d) = %.2x\n", reg, value);
return value;
}
static void caleb_reg_write(int reg, u8 value)
{
u8 dummy;
// printk(KERN_INFO "caleb_reg_write(%d, %.2x)\n", reg, value);
*((volatile u8 *)(ENP2611_CALEB_VIRT_BASE + reg)) = value;
dummy = *((volatile u8 *)ENP2611_CALEB_VIRT_BASE);
__asm__ __volatile__("mov %0, %0" : "+r" (dummy));
}
void caleb_reset(void)
{
/*
* Perform a chip reset.
*/
caleb_reg_write(CALEB_RESET, 0x02);
udelay(1);
/*
* Enable all interrupt sources. This is needed to get
* meaningful results out of the status bits (register 6
* and 7.)
*/
caleb_reg_write(CALEB_INTREN0, 0xff);
caleb_reg_write(CALEB_INTREN1, 0x07);
/*
* Set RX and TX FIFO thresholds to 1.5kb.
*/
caleb_reg_write(CALEB_PHY0RX, 0x11);
caleb_reg_write(CALEB_PHY1RX, 0x11);
caleb_reg_write(CALEB_PHY0TX, 0x11);
caleb_reg_write(CALEB_PHY1TX, 0x11);
/*
* Program SPI-3 burst size.
*/
caleb_reg_write(CALEB_BURST, 0); // 64-byte RBUF mpackets
// caleb_reg_write(CALEB_BURST, 1); // 128-byte RBUF mpackets
// caleb_reg_write(CALEB_BURST, 2); // 256-byte RBUF mpackets
}
void caleb_enable_rx(int port)
{
u8 temp;
temp = caleb_reg_read(CALEB_PORTEN);
temp |= 1 << port;
caleb_reg_write(CALEB_PORTEN, temp);
}
void caleb_disable_rx(int port)
{
u8 temp;
temp = caleb_reg_read(CALEB_PORTEN);
temp &= ~(1 << port);
caleb_reg_write(CALEB_PORTEN, temp);
}
void caleb_enable_tx(int port)
{
u8 temp;
temp = caleb_reg_read(CALEB_PORTEN);
temp |= 1 << (port + 4);
caleb_reg_write(CALEB_PORTEN, temp);
}
void caleb_disable_tx(int port)
{
u8 temp;
temp = caleb_reg_read(CALEB_PORTEN);
temp &= ~(1 << (port + 4));
caleb_reg_write(CALEB_PORTEN, temp);
}

22
drivers/net/ethernet/xscale/ixp2000/caleb.h
View File

@ -1,22 +0,0 @@
/*
* Helper functions for the SPI-3 bridge FPGA on the Radisys ENP2611
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __CALEB_H
#define __CALEB_H
void caleb_reset(void);
void caleb_enable_rx(int port);
void caleb_disable_rx(int port);
void caleb_enable_tx(int port);
void caleb_disable_tx(int port);
#endif

232
drivers/net/ethernet/xscale/ixp2000/enp2611.c
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@ -1,232 +0,0 @@
/*
* IXP2400 MSF network device driver for the Radisys ENP2611
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/moduleparam.h>
#include <asm/hardware/uengine.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include "ixpdev.h"
#include "caleb.h"
#include "ixp2400-msf.h"
#include "pm3386.h"
/***********************************************************************
* The Radisys ENP2611 is a PCI form factor board with three SFP GBIC
* slots, connected via two PMC/Sierra 3386s and an SPI-3 bridge FPGA
* to the IXP2400.
*
* +-------------+
* SFP GBIC #0 ---+ | +---------+
* | PM3386 #0 +-------+ |
* SFP GBIC #1 ---+ | | "Caleb" | +---------+
* +-------------+ | | | |
* | SPI-3 +---------+ IXP2400 |
* +-------------+ | bridge | | |
* SFP GBIC #2 ---+ | | FPGA | +---------+
* | PM3386 #1 +-------+ |
* | | +---------+
* +-------------+
* ^ ^ ^
* | 1.25Gbaud | 104MHz | 104MHz
* | SERDES ea. | SPI-3 ea. | SPI-3
*
***********************************************************************/
static struct ixp2400_msf_parameters enp2611_msf_parameters =
{
.rx_mode = IXP2400_RX_MODE_UTOPIA_POS |
IXP2400_RX_MODE_1x32 |
IXP2400_RX_MODE_MPHY |
IXP2400_RX_MODE_MPHY_32 |
IXP2400_RX_MODE_MPHY_POLLED_STATUS |
IXP2400_RX_MODE_MPHY_LEVEL3 |
IXP2400_RX_MODE_RBUF_SIZE_64,
.rxclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
.rx_poll_ports = 3,
.rx_channel_mode = {
IXP2400_PORT_RX_MODE_MASTER |
IXP2400_PORT_RX_MODE_POS_PHY |
IXP2400_PORT_RX_MODE_POS_PHY_L3 |
IXP2400_PORT_RX_MODE_ODD_PARITY |
IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
IXP2400_PORT_RX_MODE_MASTER |
IXP2400_PORT_RX_MODE_POS_PHY |
IXP2400_PORT_RX_MODE_POS_PHY_L3 |
IXP2400_PORT_RX_MODE_ODD_PARITY |
IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
IXP2400_PORT_RX_MODE_MASTER |
IXP2400_PORT_RX_MODE_POS_PHY |
IXP2400_PORT_RX_MODE_POS_PHY_L3 |
IXP2400_PORT_RX_MODE_ODD_PARITY |
IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
IXP2400_PORT_RX_MODE_MASTER |
IXP2400_PORT_RX_MODE_POS_PHY |
IXP2400_PORT_RX_MODE_POS_PHY_L3 |
IXP2400_PORT_RX_MODE_ODD_PARITY |
IXP2400_PORT_RX_MODE_2_CYCLE_DECODE
},
.tx_mode = IXP2400_TX_MODE_UTOPIA_POS |
IXP2400_TX_MODE_1x32 |
IXP2400_TX_MODE_MPHY |
IXP2400_TX_MODE_MPHY_32 |
IXP2400_TX_MODE_MPHY_POLLED_STATUS |
IXP2400_TX_MODE_MPHY_LEVEL3 |
IXP2400_TX_MODE_TBUF_SIZE_64,
.txclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
.tx_poll_ports = 3,
.tx_channel_mode = {
IXP2400_PORT_TX_MODE_MASTER |
IXP2400_PORT_TX_MODE_POS_PHY |
IXP2400_PORT_TX_MODE_ODD_PARITY |
IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
IXP2400_PORT_TX_MODE_MASTER |
IXP2400_PORT_TX_MODE_POS_PHY |
IXP2400_PORT_TX_MODE_ODD_PARITY |
IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
IXP2400_PORT_TX_MODE_MASTER |
IXP2400_PORT_TX_MODE_POS_PHY |
IXP2400_PORT_TX_MODE_ODD_PARITY |
IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
IXP2400_PORT_TX_MODE_MASTER |
IXP2400_PORT_TX_MODE_POS_PHY |
IXP2400_PORT_TX_MODE_ODD_PARITY |
IXP2400_PORT_TX_MODE_2_CYCLE_DECODE
}
};
static struct net_device *nds[3];
static struct timer_list link_check_timer;
/* @@@ Poll the SFP moddef0 line too. */
/* @@@ Try to use the pm3386 DOOL interrupt as well. */
static void enp2611_check_link_status(unsigned long __dummy)
{
int i;
for (i = 0; i < 3; i++) {
struct net_device *dev;
int status;
dev = nds[i];
if (dev == NULL)
continue;
status = pm3386_is_link_up(i);
if (status && !netif_carrier_ok(dev)) {
/* @@@ Should report autonegotiation status. */
printk(KERN_INFO "%s: NIC Link is Up\n", dev->name);
pm3386_enable_tx(i);
caleb_enable_tx(i);
netif_carrier_on(dev);
} else if (!status && netif_carrier_ok(dev)) {
printk(KERN_INFO "%s: NIC Link is Down\n", dev->name);
netif_carrier_off(dev);
caleb_disable_tx(i);
pm3386_disable_tx(i);
}
}
link_check_timer.expires = jiffies + HZ / 10;
add_timer(&link_check_timer);
}
static void enp2611_set_port_admin_status(int port, int up)
{
if (up) {
caleb_enable_rx(port);
pm3386_set_carrier(port, 1);
pm3386_enable_rx(port);
} else {
caleb_disable_tx(port);
pm3386_disable_tx(port);
/* @@@ Flush out pending packets. */
pm3386_set_carrier(port, 0);
pm3386_disable_rx(port);
caleb_disable_rx(port);
}
}
static int __init enp2611_init_module(void)
{
int ports;
int i;
if (!machine_is_enp2611())
return -ENODEV;
caleb_reset();
pm3386_reset();
ports = pm3386_port_count();
for (i = 0; i < ports; i++) {
nds[i] = ixpdev_alloc(i, sizeof(struct ixpdev_priv));
if (nds[i] == NULL) {
while (--i >= 0)
free_netdev(nds[i]);
return -ENOMEM;
}
pm3386_init_port(i);
pm3386_get_mac(i, nds[i]->dev_addr);
}
ixp2400_msf_init(&enp2611_msf_parameters);
if (ixpdev_init(ports, nds, enp2611_set_port_admin_status)) {
for (i = 0; i < ports; i++)
if (nds[i])
free_netdev(nds[i]);
return -EINVAL;
}
init_timer(&link_check_timer);
link_check_timer.function = enp2611_check_link_status;
link_check_timer.expires = jiffies;
add_timer(&link_check_timer);
return 0;
}
static void __exit enp2611_cleanup_module(void)
{
int i;
del_timer_sync(&link_check_timer);
ixpdev_deinit();
for (i = 0; i < 3; i++)
free_netdev(nds[i]);
}
module_init(enp2611_init_module);
module_exit(enp2611_cleanup_module);
MODULE_LICENSE("GPL");

212
drivers/net/ethernet/xscale/ixp2000/ixp2400-msf.c
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@ -1,212 +0,0 @@
/*
* Generic library functions for the MSF (Media and Switch Fabric) unit
* found on the Intel IXP2400 network processor.
*
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <mach/hardware.h>
#include <mach/ixp2000-regs.h>
#include <asm/delay.h>
#include <asm/io.h>
#include "ixp2400-msf.h"
/*
* This is the Intel recommended PLL init procedure as described on
* page 340 of the IXP2400/IXP2800 Programmer's Reference Manual.
*/
static void ixp2400_pll_init(struct ixp2400_msf_parameters *mp)
{
int rx_dual_clock;
int tx_dual_clock;
u32 value;
/*
* If the RX mode is not 1x32, we have to enable both RX PLLs
* (#0 and #1.) The same thing for the TX direction.
*/
rx_dual_clock = !!(mp->rx_mode & IXP2400_RX_MODE_WIDTH_MASK);
tx_dual_clock = !!(mp->tx_mode & IXP2400_TX_MODE_WIDTH_MASK);
/*
* Read initial value.
*/
value = ixp2000_reg_read(IXP2000_MSF_CLK_CNTRL);
/*
* Put PLLs in powerdown and bypass mode.
*/
value |= 0x0000f0f0;
ixp2000_reg_write(IXP2000_MSF_CLK_CNTRL, value);
/*
* Set single or dual clock mode bits.
*/
value &= ~0x03000000;
value |= (rx_dual_clock << 24) | (tx_dual_clock << 25);
/*
* Set multipliers.
*/
value &= ~0x00ff0000;
value |= mp->rxclk01_multiplier << 16;
value |= mp->rxclk23_multiplier << 18;
value |= mp->txclk01_multiplier << 20;
value |= mp->txclk23_multiplier << 22;
/*
* And write value.
*/
ixp2000_reg_write(IXP2000_MSF_CLK_CNTRL, value);
/*
* Disable PLL bypass mode.
*/
value &= ~(0x00005000 | rx_dual_clock << 13 | tx_dual_clock << 15);
ixp2000_reg_write(IXP2000_MSF_CLK_CNTRL, value);
/*
* Turn on PLLs.
*/
value &= ~(0x00000050 | rx_dual_clock << 5 | tx_dual_clock << 7);
ixp2000_reg_write(IXP2000_MSF_CLK_CNTRL, value);
/*
* Wait for PLLs to lock. There are lock status bits, but IXP2400
* erratum #65 says that these lock bits should not be relied upon
* as they might not accurately reflect the true state of the PLLs.
*/
udelay(100);
}
/*
* Needed according to p480 of Programmer's Reference Manual.
*/
static void ixp2400_msf_free_rbuf_entries(struct ixp2400_msf_parameters *mp)
{
int size_bits;
int i;
/*
* Work around IXP2400 erratum #69 (silent RBUF-to-DRAM transfer
* corruption) in the Intel-recommended way: do not add the RBUF
* elements susceptible to corruption to the freelist.
*/
size_bits = mp->rx_mode & IXP2400_RX_MODE_RBUF_SIZE_MASK;
if (size_bits == IXP2400_RX_MODE_RBUF_SIZE_64) {
for (i = 1; i < 128; i++) {
if (i == 9 || i == 18 || i == 27)
continue;
ixp2000_reg_write(IXP2000_MSF_RBUF_ELEMENT_DONE, i);
}
} else if (size_bits == IXP2400_RX_MODE_RBUF_SIZE_128) {
for (i = 1; i < 64; i++) {
if (i == 4 || i == 9 || i == 13)
continue;
ixp2000_reg_write(IXP2000_MSF_RBUF_ELEMENT_DONE, i);
}
} else if (size_bits == IXP2400_RX_MODE_RBUF_SIZE_256) {
for (i = 1; i < 32; i++) {
if (i == 2 || i == 4 || i == 6)
continue;
ixp2000_reg_write(IXP2000_MSF_RBUF_ELEMENT_DONE, i);
}
}
}
static u32 ixp2400_msf_valid_channels(u32 reg)
{
u32 channels;
channels = 0;
switch (reg & IXP2400_RX_MODE_WIDTH_MASK) {
case IXP2400_RX_MODE_1x32:
channels = 0x1;
if (reg & IXP2400_RX_MODE_MPHY &&
!(reg & IXP2400_RX_MODE_MPHY_32))
channels = 0xf;
break;
case IXP2400_RX_MODE_2x16:
channels = 0x5;
break;
case IXP2400_RX_MODE_4x8:
channels = 0xf;
break;
case IXP2400_RX_MODE_1x16_2x8:
channels = 0xd;
break;
}
return channels;
}
static void ixp2400_msf_enable_rx(struct ixp2400_msf_parameters *mp)
{
u32 value;
value = ixp2000_reg_read(IXP2000_MSF_RX_CONTROL) & 0x0fffffff;
value |= ixp2400_msf_valid_channels(mp->rx_mode) << 28;
ixp2000_reg_write(IXP2000_MSF_RX_CONTROL, value);
}
static void ixp2400_msf_enable_tx(struct ixp2400_msf_parameters *mp)
{
u32 value;
value = ixp2000_reg_read(IXP2000_MSF_TX_CONTROL) & 0x0fffffff;
value |= ixp2400_msf_valid_channels(mp->tx_mode) << 28;
ixp2000_reg_write(IXP2000_MSF_TX_CONTROL, value);
}
void ixp2400_msf_init(struct ixp2400_msf_parameters *mp)
{
u32 value;
int i;
/*
* Init the RX/TX PLLs based on the passed parameter block.
*/
ixp2400_pll_init(mp);
/*
* Reset MSF. Bit 7 in IXP_RESET_0 resets the MSF.
*/
value = ixp2000_reg_read(IXP2000_RESET0);
ixp2000_reg_write(IXP2000_RESET0, value | 0x80);
ixp2000_reg_write(IXP2000_RESET0, value & ~0x80);
/*
* Initialise the RX section.
*/
ixp2000_reg_write(IXP2000_MSF_RX_MPHY_POLL_LIMIT, mp->rx_poll_ports - 1);
ixp2000_reg_write(IXP2000_MSF_RX_CONTROL, mp->rx_mode);
for (i = 0; i < 4; i++) {
ixp2000_reg_write(IXP2000_MSF_RX_UP_CONTROL_0 + i,
mp->rx_channel_mode[i]);
}
ixp2400_msf_free_rbuf_entries(mp);
ixp2400_msf_enable_rx(mp);
/*
* Initialise the TX section.
*/
ixp2000_reg_write(IXP2000_MSF_TX_MPHY_POLL_LIMIT, mp->tx_poll_ports - 1);
ixp2000_reg_write(IXP2000_MSF_TX_CONTROL, mp->tx_mode);
for (i = 0; i < 4; i++) {
ixp2000_reg_write(IXP2000_MSF_TX_UP_CONTROL_0 + i,
mp->tx_channel_mode[i]);
}
ixp2400_msf_enable_tx(mp);
}

115
drivers/net/ethernet/xscale/ixp2000/ixp2400-msf.h
View File

@ -1,115 +0,0 @@
/*
* Generic library functions for the MSF (Media and Switch Fabric) unit
* found on the Intel IXP2400 network processor.
*
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*/
#ifndef __IXP2400_MSF_H
#define __IXP2400_MSF_H
struct ixp2400_msf_parameters
{
u32 rx_mode;
unsigned rxclk01_multiplier:2;
unsigned rxclk23_multiplier:2;
unsigned rx_poll_ports:6;
u32 rx_channel_mode[4];
u32 tx_mode;
unsigned txclk01_multiplier:2;
unsigned txclk23_multiplier:2;
unsigned tx_poll_ports:6;
u32 tx_channel_mode[4];
};
void ixp2400_msf_init(struct ixp2400_msf_parameters *mp);
#define IXP2400_PLL_MULTIPLIER_48 0x00
#define IXP2400_PLL_MULTIPLIER_24 0x01
#define IXP2400_PLL_MULTIPLIER_16 0x02
#define IXP2400_PLL_MULTIPLIER_12 0x03
#define IXP2400_RX_MODE_CSIX 0x00400000
#define IXP2400_RX_MODE_UTOPIA_POS 0x00000000
#define IXP2400_RX_MODE_WIDTH_MASK 0x00300000
#define IXP2400_RX_MODE_1x16_2x8 0x00300000
#define IXP2400_RX_MODE_4x8 0x00200000
#define IXP2400_RX_MODE_2x16 0x00100000
#define IXP2400_RX_MODE_1x32 0x00000000
#define IXP2400_RX_MODE_MPHY 0x00080000
#define IXP2400_RX_MODE_SPHY 0x00000000
#define IXP2400_RX_MODE_MPHY_32 0x00040000
#define IXP2400_RX_MODE_MPHY_4 0x00000000
#define IXP2400_RX_MODE_MPHY_POLLED_STATUS 0x00020000
#define IXP2400_RX_MODE_MPHY_DIRECT_STATUS 0x00000000
#define IXP2400_RX_MODE_CBUS_FULL_DUPLEX 0x00010000
#define IXP2400_RX_MODE_CBUS_SIMPLEX 0x00000000
#define IXP2400_RX_MODE_MPHY_LEVEL2 0x00004000
#define IXP2400_RX_MODE_MPHY_LEVEL3 0x00000000
#define IXP2400_RX_MODE_CBUS_8BIT 0x00002000
#define IXP2400_RX_MODE_CBUS_4BIT 0x00000000
#define IXP2400_RX_MODE_CSIX_SINGLE_FREELIST 0x00000200
#define IXP2400_RX_MODE_CSIX_SPLIT_FREELISTS 0x00000000
#define IXP2400_RX_MODE_RBUF_SIZE_MASK 0x0000000c
#define IXP2400_RX_MODE_RBUF_SIZE_256 0x00000008
#define IXP2400_RX_MODE_RBUF_SIZE_128 0x00000004
#define IXP2400_RX_MODE_RBUF_SIZE_64 0x00000000
#define IXP2400_PORT_RX_MODE_SLAVE 0x00000040
#define IXP2400_PORT_RX_MODE_MASTER 0x00000000
#define IXP2400_PORT_RX_MODE_POS_PHY_L3 0x00000020
#define IXP2400_PORT_RX_MODE_POS_PHY_L2 0x00000000
#define IXP2400_PORT_RX_MODE_POS_PHY 0x00000010
#define IXP2400_PORT_RX_MODE_UTOPIA 0x00000000
#define IXP2400_PORT_RX_MODE_EVEN_PARITY 0x0000000c
#define IXP2400_PORT_RX_MODE_ODD_PARITY 0x00000008
#define IXP2400_PORT_RX_MODE_NO_PARITY 0x00000000
#define IXP2400_PORT_RX_MODE_UTOPIA_BIG_CELLS 0x00000002
#define IXP2400_PORT_RX_MODE_UTOPIA_NORMAL_CELLS 0x00000000
#define IXP2400_PORT_RX_MODE_2_CYCLE_DECODE 0x00000001
#define IXP2400_PORT_RX_MODE_1_CYCLE_DECODE 0x00000000
#define IXP2400_TX_MODE_CSIX 0x00400000
#define IXP2400_TX_MODE_UTOPIA_POS 0x00000000
#define IXP2400_TX_MODE_WIDTH_MASK 0x00300000
#define IXP2400_TX_MODE_1x16_2x8 0x00300000
#define IXP2400_TX_MODE_4x8 0x00200000
#define IXP2400_TX_MODE_2x16 0x00100000
#define IXP2400_TX_MODE_1x32 0x00000000
#define IXP2400_TX_MODE_MPHY 0x00080000
#define IXP2400_TX_MODE_SPHY 0x00000000
#define IXP2400_TX_MODE_MPHY_32 0x00040000
#define IXP2400_TX_MODE_MPHY_4 0x00000000
#define IXP2400_TX_MODE_MPHY_POLLED_STATUS 0x00020000
#define IXP2400_TX_MODE_MPHY_DIRECT_STATUS 0x00000000
#define IXP2400_TX_MODE_CBUS_FULL_DUPLEX 0x00010000
#define IXP2400_TX_MODE_CBUS_SIMPLEX 0x00000000
#define IXP2400_TX_MODE_MPHY_LEVEL2 0x00004000
#define IXP2400_TX_MODE_MPHY_LEVEL3 0x00000000
#define IXP2400_TX_MODE_CBUS_8BIT 0x00002000
#define IXP2400_TX_MODE_CBUS_4BIT 0x00000000
#define IXP2400_TX_MODE_TBUF_SIZE_MASK 0x0000000c
#define IXP2400_TX_MODE_TBUF_SIZE_256 0x00000008
#define IXP2400_TX_MODE_TBUF_SIZE_128 0x00000004
#define IXP2400_TX_MODE_TBUF_SIZE_64 0x00000000
#define IXP2400_PORT_TX_MODE_SLAVE 0x00000040
#define IXP2400_PORT_TX_MODE_MASTER 0x00000000
#define IXP2400_PORT_TX_MODE_POS_PHY 0x00000010
#define IXP2400_PORT_TX_MODE_UTOPIA 0x00000000
#define IXP2400_PORT_TX_MODE_EVEN_PARITY 0x0000000c
#define IXP2400_PORT_TX_MODE_ODD_PARITY 0x00000008
#define IXP2400_PORT_TX_MODE_NO_PARITY 0x00000000
#define IXP2400_PORT_TX_MODE_UTOPIA_BIG_CELLS 0x00000002
#define IXP2400_PORT_TX_MODE_2_CYCLE_DECODE 0x00000001
#define IXP2400_PORT_TX_MODE_1_CYCLE_DECODE 0x00000000
#endif

408
drivers/net/ethernet/xscale/ixp2000/ixp2400_rx.uc
View File

@ -1,408 +0,0 @@
/*
* RX ucode for the Intel IXP2400 in POS-PHY mode.
* Copyright (C) 2004, 2005 Lennert Buytenhek
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Assumptions made in this code:
* - The IXP2400 MSF is configured for POS-PHY mode, in a mode where
* only one full element list is used. This includes, for example,
* 1x32 SPHY and 1x32 MPHY32, but not 4x8 SPHY or 1x32 MPHY4. (This
* is not an exhaustive list.)
* - The RBUF uses 64-byte mpackets.
* - RX descriptors reside in SRAM, and have the following format:
* struct rx_desc
* {
* // to uengine
* u32 buf_phys_addr;
* u32 buf_length;
*
* // from uengine
* u32 channel;
* u32 pkt_length;
* };
* - Packet data resides in DRAM.
* - Packet buffer addresses are 8-byte aligned.
* - Scratch ring 0 is rx_pending.
* - Scratch ring 1 is rx_done, and has status condition 'full'.
* - The host triggers rx_done flush and rx_pending refill on seeing INTA.
* - This code is run on all eight threads of the microengine it runs on.
*
* Local memory is used for per-channel RX state.
*/
#define RX_THREAD_FREELIST_0 0x0030
#define RBUF_ELEMENT_DONE 0x0044
#define CHANNEL_FLAGS *l$index0[0]
#define CHANNEL_FLAG_RECEIVING 1
#define PACKET_LENGTH *l$index0[1]
#define PACKET_CHECKSUM *l$index0[2]
#define BUFFER_HANDLE *l$index0[3]
#define BUFFER_START *l$index0[4]
#define BUFFER_LENGTH *l$index0[5]
#define CHANNEL_STATE_SIZE 24 // in bytes
#define CHANNEL_STATE_SHIFT 5 // ceil(log2(state size))
.sig volatile sig1
.sig volatile sig2
.sig volatile sig3
.sig mpacket_arrived
.reg add_to_rx_freelist
.reg read $rsw0, $rsw1
.xfer_order $rsw0 $rsw1
.reg zero
/*
* Initialise add_to_rx_freelist.
*/
.begin
.reg temp
.reg temp2
immed[add_to_rx_freelist, RX_THREAD_FREELIST_0]
immed_w1[add_to_rx_freelist, (&$rsw0 | (&mpacket_arrived << 12))]
local_csr_rd[ACTIVE_CTX_STS]
immed[temp, 0]
alu[temp2, temp, and, 0x1f]
alu_shf[add_to_rx_freelist, add_to_rx_freelist, or, temp2, <<20]
alu[temp2, temp, and, 0x80]
alu_shf[add_to_rx_freelist, add_to_rx_freelist, or, temp2, <<18]
.end
immed[zero, 0]
/*
* Skip context 0 initialisation?
*/
.begin
br!=ctx[0, mpacket_receive_loop#]
.end
/*
* Initialise local memory.
*/
.begin
.reg addr
.reg temp
immed[temp, 0]
init_local_mem_loop#:
alu_shf[addr, --, b, temp, <<CHANNEL_STATE_SHIFT]
local_csr_wr[ACTIVE_LM_ADDR_0, addr]
nop
nop
nop
immed[CHANNEL_FLAGS, 0]
alu[temp, temp, +, 1]
alu[--, temp, and, 0x20]
beq[init_local_mem_loop#]
.end
/*
* Initialise signal pipeline.
*/
.begin
local_csr_wr[SAME_ME_SIGNAL, (&sig1 << 3)]
.set_sig sig1
local_csr_wr[SAME_ME_SIGNAL, (&sig2 << 3)]
.set_sig sig2
local_csr_wr[SAME_ME_SIGNAL, (&sig3 << 3)]
.set_sig sig3
.end
mpacket_receive_loop#:
/*
* Synchronise and wait for mpacket.
*/
.begin
ctx_arb[sig1]
local_csr_wr[SAME_ME_SIGNAL, (0x80 | (&sig1 << 3))]
msf[fast_wr, --, add_to_rx_freelist, 0]
.set_sig mpacket_arrived
ctx_arb[mpacket_arrived]
.set $rsw0 $rsw1
.end
/*
* We halt if we see {inbparerr,parerr,null,soperror}.
*/
.begin
alu_shf[--, 0x1b, and, $rsw0, >>8]
bne[abort_rswerr#]
.end
/*
* Point local memory pointer to this channel's state area.
*/
.begin
.reg chanaddr
alu[chanaddr, $rsw0, and, 0x1f]
alu_shf[chanaddr, --, b, chanaddr, <<CHANNEL_STATE_SHIFT]
local_csr_wr[ACTIVE_LM_ADDR_0, chanaddr]
nop
nop
nop
.end
/*
* Check whether we received a SOP mpacket while we were already
* working on a packet, or a non-SOP mpacket while there was no
* packet pending. (SOP == RECEIVING -> abort) If everything's
* okay, update the RECEIVING flag to reflect our new state.
*/
.begin
.reg temp
.reg eop
#if CHANNEL_FLAG_RECEIVING != 1
#error CHANNEL_FLAG_RECEIVING is not 1
#endif
alu_shf[temp, 1, and, $rsw0, >>15]
alu[temp, temp, xor, CHANNEL_FLAGS]
alu[--, temp, and, CHANNEL_FLAG_RECEIVING]
beq[abort_proterr#]
alu_shf[eop, 1, and, $rsw0, >>14]
alu[CHANNEL_FLAGS, temp, xor, eop]
.end
/*
* Copy the mpacket into the right spot, and in case of EOP,
* write back the descriptor and pass the packet on.
*/
.begin
.reg buffer_offset
.reg _packet_length
.reg _packet_checksum
.reg _buffer_handle
.reg _buffer_start
.reg _buffer_length
/*
* Determine buffer_offset, _packet_length and
* _packet_checksum.
*/
.begin
.reg temp
alu[--, 1, and, $rsw0, >>15]
beq[not_sop#]
immed[PACKET_LENGTH, 0]
immed[PACKET_CHECKSUM, 0]
not_sop#:
alu[buffer_offset, --, b, PACKET_LENGTH]
alu_shf[temp, 0xff, and, $rsw0, >>16]
alu[_packet_length, buffer_offset, +, temp]
alu[PACKET_LENGTH, --, b, _packet_length]
immed[temp, 0xffff]
alu[temp, $rsw1, and, temp]
alu[_packet_checksum, PACKET_CHECKSUM, +, temp]
alu[PACKET_CHECKSUM, --, b, _packet_checksum]
.end
/*
* Allocate buffer in case of SOP.
*/
.begin
.reg temp
alu[temp, 1, and, $rsw0, >>15]
beq[skip_buffer_alloc#]
.begin
.sig zzz
.reg read $stemp $stemp2
.xfer_order $stemp $stemp2
rx_nobufs#:
scratch[get, $stemp, zero, 0, 1], ctx_swap[zzz]
alu[_buffer_handle, --, b, $stemp]
beq[rx_nobufs#]
sram[read, $stemp, _buffer_handle, 0, 2],
ctx_swap[zzz]
alu[_buffer_start, --, b, $stemp]
alu[_buffer_length, --, b, $stemp2]
.end
skip_buffer_alloc#:
.end
/*
* Resynchronise.
*/
.begin
ctx_arb[sig2]
local_csr_wr[SAME_ME_SIGNAL, (0x80 | (&sig2 << 3))]
.end
/*
* Synchronise buffer state.
*/
.begin
.reg temp
alu[temp, 1, and, $rsw0, >>15]
beq[copy_from_local_mem#]
alu[BUFFER_HANDLE, --, b, _buffer_handle]
alu[BUFFER_START, --, b, _buffer_start]
alu[BUFFER_LENGTH, --, b, _buffer_length]
br[sync_state_done#]
copy_from_local_mem#:
alu[_buffer_handle, --, b, BUFFER_HANDLE]
alu[_buffer_start, --, b, BUFFER_START]
alu[_buffer_length, --, b, BUFFER_LENGTH]
sync_state_done#:
.end
#if 0
/*
* Debug buffer state management.
*/
.begin
.reg temp
alu[temp, 1, and, $rsw0, >>14]
beq[no_poison#]
immed[BUFFER_HANDLE, 0xdead]
immed[BUFFER_START, 0xdead]
immed[BUFFER_LENGTH, 0xdead]
no_poison#:
immed[temp, 0xdead]
alu[--, _buffer_handle, -, temp]
beq[state_corrupted#]
alu[--, _buffer_start, -, temp]
beq[state_corrupted#]
alu[--, _buffer_length, -, temp]
beq[state_corrupted#]
.end
#endif
/*
* Check buffer length.
*/
.begin
alu[--, _buffer_length, -, _packet_length]
blo[buffer_overflow#]
.end
/*
* Copy the mpacket and give back the RBUF element.
*/
.begin
.reg element
.reg xfer_size
.reg temp
.sig copy_sig
alu_shf[element, 0x7f, and, $rsw0, >>24]
alu_shf[xfer_size, 0xff, and, $rsw0, >>16]
alu[xfer_size, xfer_size, -, 1]
alu_shf[xfer_size, 0x10, or, xfer_size, >>3]
alu_shf[temp, 0x10, or, xfer_size, <<21]
alu_shf[temp, temp, or, element, <<11]
alu_shf[--, temp, or, 1, <<18]
dram[rbuf_rd, --, _buffer_start, buffer_offset, max_8],
indirect_ref, sig_done[copy_sig]
ctx_arb[copy_sig]
alu[temp, RBUF_ELEMENT_DONE, or, element, <<16]
msf[fast_wr, --, temp, 0]
.end
/*
* If EOP, write back the packet descriptor.
*/
.begin
.reg write $stemp $stemp2
.xfer_order $stemp $stemp2
.sig zzz
alu_shf[--, 1, and, $rsw0, >>14]
beq[no_writeback#]
alu[$stemp, $rsw0, and, 0x1f]
alu[$stemp2, --, b, _packet_length]
sram[write, $stemp, _buffer_handle, 8, 2], ctx_swap[zzz]
no_writeback#:
.end
/*
* Resynchronise.
*/
.begin
ctx_arb[sig3]
local_csr_wr[SAME_ME_SIGNAL, (0x80 | (&sig3 << 3))]
.end
/*
* If EOP, put the buffer back onto the scratch ring.
*/
.begin
.reg write $stemp
.sig zzz
br_inp_state[SCR_Ring1_Status, rx_done_ring_overflow#]
alu_shf[--, 1, and, $rsw0, >>14]
beq[mpacket_receive_loop#]
alu[--, 1, and, $rsw0, >>10]
bne[rxerr#]
alu[$stemp, --, b, _buffer_handle]
scratch[put, $stemp, zero, 4, 1], ctx_swap[zzz]
cap[fast_wr, 0, XSCALE_INT_A]
br[mpacket_receive_loop#]
rxerr#:
alu[$stemp, --, b, _buffer_handle]
scratch[put, $stemp, zero, 0, 1], ctx_swap[zzz]
br[mpacket_receive_loop#]
.end
.end
abort_rswerr#:
halt
abort_proterr#:
halt
state_corrupted#:
halt
buffer_overflow#:
halt
rx_done_ring_overflow#:
halt

130
drivers/net/ethernet/xscale/ixp2000/ixp2400_rx.ucode
View File

@ -1,130 +0,0 @@
static struct ixp2000_uengine_code ixp2400_rx =
{
.cpu_model_bitmask = 0x000003fe,
.cpu_min_revision = 0,
.cpu_max_revision = 255,
.uengine_parameters = IXP2000_UENGINE_8_CONTEXTS |
IXP2000_UENGINE_PRN_UPDATE_EVERY |
IXP2000_UENGINE_NN_FROM_PREVIOUS |
IXP2000_UENGINE_ASSERT_EMPTY_AT_0 |
IXP2000_UENGINE_LM_ADDR1_PER_CONTEXT |
IXP2000_UENGINE_LM_ADDR0_PER_CONTEXT,
.initial_reg_values = (struct ixp2000_reg_value []) {
{ -1, -1 }
},
.num_insns = 109,
.insns = (u8 []) {
0xf0, 0x00, 0x0c, 0xc0, 0x05,
0xf4, 0x44, 0x0c, 0x00, 0x05,
0xfc, 0x04, 0x4c, 0x00, 0x00,
0xf0, 0x00, 0x00, 0x3b, 0x00,
0xb4, 0x40, 0xf0, 0x3b, 0x1f,
0x8a, 0xc0, 0x50, 0x3e, 0x05,
0xb4, 0x40, 0xf0, 0x3b, 0x80,
0x9a, 0xe0, 0x00, 0x3e, 0x05,
0xf0, 0x00, 0x00, 0x07, 0x00,
0xd8, 0x05, 0xc0, 0x00, 0x11,
0xf0, 0x00, 0x00, 0x0f, 0x00,
0x91, 0xb0, 0x20, 0x0e, 0x00,
0xfc, 0x06, 0x60, 0x0b, 0x00,
0xf0, 0x00, 0x0c, 0x03, 0x00,
0xf0, 0x00, 0x0c, 0x03, 0x00,
0xf0, 0x00, 0x0c, 0x03, 0x00,
0xf0, 0x00, 0x0c, 0x02, 0x00,
0xb0, 0xc0, 0x30, 0x0f, 0x01,
0xa4, 0x70, 0x00, 0x0f, 0x20,
0xd8, 0x02, 0xc0, 0x01, 0x00,
0xfc, 0x10, 0xac, 0x23, 0x08,
0xfc, 0x10, 0xac, 0x43, 0x10,
0xfc, 0x10, 0xac, 0x63, 0x18,
0xe0, 0x00, 0x00, 0x00, 0x02,
0xfc, 0x10, 0xae, 0x23, 0x88,
0x3d, 0x00, 0x04, 0x03, 0x20,
0xe0, 0x00, 0x00, 0x00, 0x10,
0x84, 0x82, 0x02, 0x01, 0x3b,
0xd8, 0x1a, 0x00, 0x01, 0x01,
0xb4, 0x00, 0x8c, 0x7d, 0x80,
0x91, 0xb0, 0x80, 0x22, 0x00,
0xfc, 0x06, 0x60, 0x23, 0x00,
0xf0, 0x00, 0x0c, 0x03, 0x00,
0xf0, 0x00, 0x0c, 0x03, 0x00,
0xf0, 0x00, 0x0c, 0x03, 0x00,
0x94, 0xf0, 0x92, 0x01, 0x21,
0xac, 0x40, 0x60, 0x26, 0x00,
0xa4, 0x30, 0x0c, 0x04, 0x06,
0xd8, 0x1a, 0x40, 0x01, 0x00,
0x94, 0xe0, 0xa2, 0x01, 0x21,
0xac, 0x20, 0x00, 0x28, 0x06,
0x84, 0xf2, 0x02, 0x01, 0x21,
0xd8, 0x0b, 0x40, 0x01, 0x00,
0xf0, 0x00, 0x0c, 0x02, 0x01,
0xf0, 0x00, 0x0c, 0x02, 0x02,
0xa0, 0x00, 0x08, 0x04, 0x00,
0x95, 0x00, 0xc6, 0x01, 0xff,
0xa0, 0x80, 0x10, 0x30, 0x00,
0xa0, 0x60, 0x1c, 0x00, 0x01,
0xf0, 0x0f, 0xf0, 0x33, 0xff,
0xb4, 0x00, 0xc0, 0x31, 0x81,
0xb0, 0x80, 0xb0, 0x32, 0x02,
0xa0, 0x20, 0x20, 0x2c, 0x00,
0x94, 0xf0, 0xd2, 0x01, 0x21,
0xd8, 0x0f, 0x40, 0x01, 0x00,
0x19, 0x40, 0x10, 0x04, 0x20,
0xa0, 0x00, 0x26, 0x04, 0x00,
0xd8, 0x0d, 0xc0, 0x01, 0x00,
0x00, 0x42, 0x10, 0x80, 0x02,
0xb0, 0x00, 0x46, 0x04, 0x00,
0xb0, 0x00, 0x56, 0x08, 0x00,
0xe0, 0x00, 0x00, 0x00, 0x04,
0xfc, 0x10, 0xae, 0x43, 0x90,
0x84, 0xf0, 0x32, 0x01, 0x21,
0xd8, 0x11, 0x40, 0x01, 0x00,
0xa0, 0x60, 0x3c, 0x00, 0x02,
0xa0, 0x20, 0x40, 0x10, 0x00,
0xa0, 0x20, 0x50, 0x14, 0x00,
0xd8, 0x12, 0x00, 0x00, 0x18,
0xa0, 0x00, 0x28, 0x0c, 0x00,
0xb0, 0x00, 0x48, 0x10, 0x00,
0xb0, 0x00, 0x58, 0x14, 0x00,
0xaa, 0xf0, 0x00, 0x14, 0x01,
0xd8, 0x1a, 0xc0, 0x01, 0x05,
0x85, 0x80, 0x42, 0x01, 0xff,
0x95, 0x00, 0x66, 0x01, 0xff,
0xba, 0xc0, 0x60, 0x1b, 0x01,
0x9a, 0x30, 0x60, 0x19, 0x30,
0x9a, 0xb0, 0x70, 0x1a, 0x30,
0x9b, 0x50, 0x78, 0x1e, 0x04,
0x8a, 0xe2, 0x08, 0x1e, 0x21,
0x6a, 0x4e, 0x00, 0x13, 0x00,
0xe0, 0x00, 0x00, 0x00, 0x30,
0x9b, 0x00, 0x7a, 0x92, 0x04,
0x3d, 0x00, 0x04, 0x1f, 0x20,
0x84, 0xe2, 0x02, 0x01, 0x21,
0xd8, 0x16, 0x80, 0x01, 0x00,
0xa4, 0x18, 0x0c, 0x7d, 0x80,
0xa0, 0x58, 0x1c, 0x00, 0x01,
0x01, 0x42, 0x00, 0xa0, 0x02,
0xe0, 0x00, 0x00, 0x00, 0x08,
0xfc, 0x10, 0xae, 0x63, 0x98,
0xd8, 0x1b, 0x00, 0xc2, 0x14,
0x84, 0xe2, 0x02, 0x01, 0x21,
0xd8, 0x05, 0xc0, 0x01, 0x00,
0x84, 0xa2, 0x02, 0x01, 0x21,
0xd8, 0x19, 0x40, 0x01, 0x01,
0xa0, 0x58, 0x0c, 0x00, 0x02,
0x1a, 0x40, 0x00, 0x04, 0x24,
0x33, 0x00, 0x01, 0x2f, 0x20,
0xd8, 0x05, 0xc0, 0x00, 0x18,
0xa0, 0x58, 0x0c, 0x00, 0x02,
0x1a, 0x40, 0x00, 0x04, 0x20,
0xd8, 0x05, 0xc0, 0x00, 0x18,
0xe0, 0x00, 0x02, 0x00, 0x00,
0xe0, 0x00, 0x02, 0x00, 0x00,
0xe0, 0x00, 0x02, 0x00, 0x00,
0xe0, 0x00, 0x02, 0x00, 0x00,
0xe0, 0x00, 0x02, 0x00, 0x00,
}
};

272
drivers/net/ethernet/xscale/ixp2000/ixp2400_tx.uc
View File

@ -1,272 +0,0 @@
/*
* TX ucode for the Intel IXP2400 in POS-PHY mode.
* Copyright (C) 2004, 2005 Lennert Buytenhek
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Assumptions made in this code:
* - The IXP2400 MSF is configured for POS-PHY mode, in a mode where
* only one TBUF partition is used. This includes, for example,
* 1x32 SPHY and 1x32 MPHY32, but not 4x8 SPHY or 1x32 MPHY4. (This
* is not an exhaustive list.)
* - The TBUF uses 64-byte mpackets.
* - TX descriptors reside in SRAM, and have the following format:
* struct tx_desc
* {
* // to uengine
* u32 buf_phys_addr;
* u32 pkt_length;
* u32 channel;
* };
* - Packet data resides in DRAM.
* - Packet buffer addresses are 8-byte aligned.
* - Scratch ring 2 is tx_pending.
* - Scratch ring 3 is tx_done, and has status condition 'full'.
* - This code is run on all eight threads of the microengine it runs on.
*/
#define TX_SEQUENCE_0 0x0060
#define TBUF_CTRL 0x1800
#define PARTITION_SIZE 128
#define PARTITION_THRESH 96
.sig volatile sig1
.sig volatile sig2
.sig volatile sig3
.reg @old_tx_seq_0
.reg @mpkts_in_flight
.reg @next_tbuf_mpacket
.reg @buffer_handle
.reg @buffer_start
.reg @packet_length
.reg @channel
.reg @packet_offset
.reg zero
immed[zero, 0]
/*
* Skip context 0 initialisation?
*/
.begin
br!=ctx[0, mpacket_tx_loop#]
.end
/*
* Wait until all pending TBUF elements have been transmitted.
*/
.begin
.reg read $tx
.sig zzz
loop_empty#:
msf[read, $tx, zero, TX_SEQUENCE_0, 1], ctx_swap[zzz]
alu_shf[--, --, b, $tx, >>31]
beq[loop_empty#]
alu[@old_tx_seq_0, --, b, $tx]
.end
immed[@mpkts_in_flight, 0]
alu[@next_tbuf_mpacket, @old_tx_seq_0, and, (PARTITION_SIZE - 1)]
immed[@buffer_handle, 0]
/*
* Initialise signal pipeline.
*/
.begin
local_csr_wr[SAME_ME_SIGNAL, (&sig1 << 3)]
.set_sig sig1
local_csr_wr[SAME_ME_SIGNAL, (&sig2 << 3)]
.set_sig sig2
local_csr_wr[SAME_ME_SIGNAL, (&sig3 << 3)]
.set_sig sig3
.end
mpacket_tx_loop#:
.begin
.reg tbuf_element_index
.reg buffer_handle
.reg sop_eop
.reg packet_data
.reg channel
.reg mpacket_size
/*
* If there is no packet currently being transmitted,
* dequeue the next TX descriptor, and fetch the buffer
* address, packet length and destination channel number.
*/
.begin
.reg read $stemp $stemp2 $stemp3
.xfer_order $stemp $stemp2 $stemp3
.sig zzz
ctx_arb[sig1]
alu[--, --, b, @buffer_handle]
bne[already_got_packet#]
tx_nobufs#:
scratch[get, $stemp, zero, 8, 1], ctx_swap[zzz]
alu[@buffer_handle, --, b, $stemp]
beq[tx_nobufs#]
sram[read, $stemp, $stemp, 0, 3], ctx_swap[zzz]
alu[@buffer_start, --, b, $stemp]
alu[@packet_length, --, b, $stemp2]
beq[zero_byte_packet#]
alu[@channel, --, b, $stemp3]
immed[@packet_offset, 0]
already_got_packet#:
local_csr_wr[SAME_ME_SIGNAL, (0x80 | (&sig1 << 3))]
.end
/*
* Determine tbuf element index, SOP/EOP flags, mpacket
* offset and mpacket size and cache buffer_handle and
* channel number.
*/
.begin
alu[tbuf_element_index, --, b, @next_tbuf_mpacket]
alu[@next_tbuf_mpacket, @next_tbuf_mpacket, +, 1]
alu[@next_tbuf_mpacket, @next_tbuf_mpacket, and,
(PARTITION_SIZE - 1)]
alu[buffer_handle, --, b, @buffer_handle]
immed[@buffer_handle, 0]
immed[sop_eop, 1]
alu[packet_data, --, b, @packet_offset]
bne[no_sop#]
alu[sop_eop, sop_eop, or, 2]
no_sop#:
alu[packet_data, packet_data, +, @buffer_start]
alu[channel, --, b, @channel]
alu[mpacket_size, @packet_length, -, @packet_offset]
alu[--, 64, -, mpacket_size]
bhs[eop#]
alu[@buffer_handle, --, b, buffer_handle]
immed[mpacket_size, 64]
alu[sop_eop, sop_eop, and, 2]
eop#:
alu[@packet_offset, @packet_offset, +, mpacket_size]
.end
/*
* Wait until there's enough space in the TBUF.
*/
.begin
.reg read $tx
.reg temp
.sig zzz
ctx_arb[sig2]
br[test_space#]
loop_space#:
msf[read, $tx, zero, TX_SEQUENCE_0, 1], ctx_swap[zzz]
alu[temp, $tx, -, @old_tx_seq_0]
alu[temp, temp, and, 0xff]
alu[@mpkts_in_flight, @mpkts_in_flight, -, temp]
alu[@old_tx_seq_0, --, b, $tx]
test_space#:
alu[--, PARTITION_THRESH, -, @mpkts_in_flight]
blo[loop_space#]
alu[@mpkts_in_flight, @mpkts_in_flight, +, 1]
local_csr_wr[SAME_ME_SIGNAL, (0x80 | (&sig2 << 3))]
.end
/*
* Copy the packet data to the TBUF.
*/
.begin
.reg temp
.sig copy_sig
alu[temp, mpacket_size, -, 1]
alu_shf[temp, 0x10, or, temp, >>3]
alu_shf[temp, 0x10, or, temp, <<21]
alu_shf[temp, temp, or, tbuf_element_index, <<11]
alu_shf[--, temp, or, 1, <<18]
dram[tbuf_wr, --, packet_data, 0, max_8],
indirect_ref, sig_done[copy_sig]
ctx_arb[copy_sig]
.end
/*
* Mark TBUF element as ready-to-be-transmitted.
*/
.begin
.reg write $tsw $tsw2
.xfer_order $tsw $tsw2
.reg temp
.sig zzz
alu_shf[temp, channel, or, mpacket_size, <<24]
alu_shf[$tsw, temp, or, sop_eop, <<8]
immed[$tsw2, 0]
immed[temp, TBUF_CTRL]
alu_shf[temp, temp, or, tbuf_element_index, <<3]
msf[write, $tsw, temp, 0, 2], ctx_swap[zzz]
.end
/*
* Resynchronise.
*/
.begin
ctx_arb[sig3]
local_csr_wr[SAME_ME_SIGNAL, (0x80 | (&sig3 << 3))]
.end
/*
* If this was an EOP mpacket, recycle the TX buffer
* and signal the host.
*/
.begin
.reg write $stemp
.sig zzz
alu[--, sop_eop, and, 1]
beq[mpacket_tx_loop#]
tx_done_ring_full#:
br_inp_state[SCR_Ring3_Status, tx_done_ring_full#]
alu[$stemp, --, b, buffer_handle]
scratch[put, $stemp, zero, 12, 1], ctx_swap[zzz]
cap[fast_wr, 0, XSCALE_INT_A]
br[mpacket_tx_loop#]
.end
.end
zero_byte_packet#:
halt

98
drivers/net/ethernet/xscale/ixp2000/ixp2400_tx.ucode
View File

@ -1,98 +0,0 @@
static struct ixp2000_uengine_code ixp2400_tx =
{
.cpu_model_bitmask = 0x000003fe,
.cpu_min_revision = 0,
.cpu_max_revision = 255,
.uengine_parameters = IXP2000_UENGINE_8_CONTEXTS |
IXP2000_UENGINE_PRN_UPDATE_EVERY |
IXP2000_UENGINE_NN_FROM_PREVIOUS |
IXP2000_UENGINE_ASSERT_EMPTY_AT_0 |
IXP2000_UENGINE_LM_ADDR1_PER_CONTEXT |
IXP2000_UENGINE_LM_ADDR0_PER_CONTEXT,
.initial_reg_values = (struct ixp2000_reg_value []) {
{ -1, -1 }
},
.num_insns = 77,
.insns = (u8 []) {
0xf0, 0x00, 0x00, 0x07, 0x00,
0xd8, 0x03, 0x00, 0x00, 0x11,
0x3c, 0x40, 0x00, 0x04, 0xe0,
0x81, 0xf2, 0x02, 0x01, 0x00,
0xd8, 0x00, 0x80, 0x01, 0x00,
0xb0, 0x08, 0x06, 0x00, 0x00,
0xf0, 0x00, 0x0c, 0x00, 0x80,
0xb4, 0x49, 0x02, 0x03, 0x7f,
0xf0, 0x00, 0x02, 0x83, 0x00,
0xfc, 0x10, 0xac, 0x23, 0x08,
0xfc, 0x10, 0xac, 0x43, 0x10,
0xfc, 0x10, 0xac, 0x63, 0x18,
0xe0, 0x00, 0x00, 0x00, 0x02,
0xa0, 0x30, 0x02, 0x80, 0x00,
0xd8, 0x06, 0x00, 0x01, 0x01,
0x19, 0x40, 0x00, 0x04, 0x28,
0xb0, 0x0a, 0x06, 0x00, 0x00,
0xd8, 0x03, 0xc0, 0x01, 0x00,
0x00, 0x44, 0x00, 0x80, 0x80,
0xa0, 0x09, 0x06, 0x00, 0x00,
0xb0, 0x0b, 0x06, 0x04, 0x00,
0xd8, 0x13, 0x00, 0x01, 0x00,
0xb0, 0x0c, 0x06, 0x08, 0x00,
0xf0, 0x00, 0x0c, 0x00, 0xa0,
0xfc, 0x10, 0xae, 0x23, 0x88,
0xa0, 0x00, 0x12, 0x40, 0x00,
0xb0, 0xc9, 0x02, 0x43, 0x01,
0xb4, 0x49, 0x02, 0x43, 0x7f,
0xb0, 0x00, 0x22, 0x80, 0x00,
0xf0, 0x00, 0x02, 0x83, 0x00,
0xf0, 0x00, 0x0c, 0x04, 0x02,
0xb0, 0x40, 0x6c, 0x00, 0xa0,
0xd8, 0x08, 0x80, 0x01, 0x01,
0xaa, 0x00, 0x2c, 0x08, 0x02,
0xa0, 0xc0, 0x30, 0x18, 0x90,
0xa0, 0x00, 0x43, 0x00, 0x00,
0xba, 0xc0, 0x32, 0xc0, 0xa0,
0xaa, 0xb0, 0x00, 0x0f, 0x40,
0xd8, 0x0a, 0x80, 0x01, 0x04,
0xb0, 0x0a, 0x00, 0x08, 0x00,
0xf0, 0x00, 0x00, 0x0f, 0x40,
0xa4, 0x00, 0x2c, 0x08, 0x02,
0xa0, 0x8a, 0x00, 0x0c, 0xa0,
0xe0, 0x00, 0x00, 0x00, 0x04,
0xd8, 0x0c, 0x80, 0x00, 0x18,
0x3c, 0x40, 0x00, 0x04, 0xe0,
0xba, 0x80, 0x42, 0x01, 0x80,
0xb4, 0x40, 0x40, 0x13, 0xff,
0xaa, 0x88, 0x00, 0x10, 0x80,
0xb0, 0x08, 0x06, 0x00, 0x00,
0xaa, 0xf0, 0x0d, 0x80, 0x80,
0xd8, 0x0b, 0x40, 0x01, 0x05,
0xa0, 0x88, 0x0c, 0x04, 0x80,
0xfc, 0x10, 0xae, 0x43, 0x90,
0xba, 0xc0, 0x50, 0x0f, 0x01,
0x9a, 0x30, 0x50, 0x15, 0x30,
0x9a, 0xb0, 0x50, 0x16, 0x30,
0x9b, 0x50, 0x58, 0x16, 0x01,
0x8a, 0xe2, 0x08, 0x16, 0x21,
0x6b, 0x4e, 0x00, 0x83, 0x03,
0xe0, 0x00, 0x00, 0x00, 0x30,
0x9a, 0x80, 0x70, 0x0e, 0x04,
0x8b, 0x88, 0x08, 0x1e, 0x02,
0xf0, 0x00, 0x0c, 0x01, 0x81,
0xf0, 0x01, 0x80, 0x1f, 0x00,
0x9b, 0xd0, 0x78, 0x1e, 0x01,
0x3d, 0x42, 0x00, 0x1c, 0x20,
0xe0, 0x00, 0x00, 0x00, 0x08,
0xfc, 0x10, 0xae, 0x63, 0x98,
0xa4, 0x30, 0x0c, 0x04, 0x02,
0xd8, 0x03, 0x00, 0x01, 0x00,
0xd8, 0x11, 0xc1, 0x42, 0x14,
0xa0, 0x18, 0x00, 0x08, 0x00,
0x1a, 0x40, 0x00, 0x04, 0x2c,
0x33, 0x00, 0x01, 0x2f, 0x20,
0xd8, 0x03, 0x00, 0x00, 0x18,
0xe0, 0x00, 0x02, 0x00, 0x00,
}
};

437
drivers/net/ethernet/xscale/ixp2000/ixpdev.c
View File

@ -1,437 +0,0 @@
/*
* IXP2000 MSF network device driver
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
#include <linux/gfp.h>
#include <asm/hardware/uengine.h>
#include <asm/io.h>
#include "ixp2400_rx.ucode"
#include "ixp2400_tx.ucode"
#include "ixpdev_priv.h"
#include "ixpdev.h"
#include "pm3386.h"
#define DRV_MODULE_VERSION "0.2"
static int nds_count;
static struct net_device **nds;
static int nds_open;
static void (*set_port_admin_status)(int port, int up);
static struct ixpdev_rx_desc * const rx_desc =
(struct ixpdev_rx_desc *)(IXP2000_SRAM0_VIRT_BASE + RX_BUF_DESC_BASE);
static struct ixpdev_tx_desc * const tx_desc =
(struct ixpdev_tx_desc *)(IXP2000_SRAM0_VIRT_BASE + TX_BUF_DESC_BASE);
static int tx_pointer;
static int ixpdev_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ixpdev_priv *ip = netdev_priv(dev);
struct ixpdev_tx_desc *desc;
int entry;
unsigned long flags;
if (unlikely(skb->len > PAGE_SIZE)) {
/* @@@ Count drops. */
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
entry = tx_pointer;
tx_pointer = (tx_pointer + 1) % TX_BUF_COUNT;
desc = tx_desc + entry;
desc->pkt_length = skb->len;
desc->channel = ip->channel;
skb_copy_and_csum_dev(skb, phys_to_virt(desc->buf_addr));
dev_kfree_skb(skb);
ixp2000_reg_write(RING_TX_PENDING,
TX_BUF_DESC_BASE + (entry * sizeof(struct ixpdev_tx_desc)));
local_irq_save(flags);
ip->tx_queue_entries++;
if (ip->tx_queue_entries == TX_BUF_COUNT_PER_CHAN)
netif_stop_queue(dev);
local_irq_restore(flags);
return NETDEV_TX_OK;
}
static int ixpdev_rx(struct net_device *dev, int processed, int budget)
{
while (processed < budget) {
struct ixpdev_rx_desc *desc;
struct sk_buff *skb;
void *buf;
u32 _desc;
_desc = ixp2000_reg_read(RING_RX_DONE);
if (_desc == 0)
return 0;
desc = rx_desc +
((_desc - RX_BUF_DESC_BASE) / sizeof(struct ixpdev_rx_desc));
buf = phys_to_virt(desc->buf_addr);
if (desc->pkt_length < 4 || desc->pkt_length > PAGE_SIZE) {
printk(KERN_ERR "ixp2000: rx err, length %d\n",
desc->pkt_length);
goto err;
}
if (desc->channel < 0 || desc->channel >= nds_count) {
printk(KERN_ERR "ixp2000: rx err, channel %d\n",
desc->channel);
goto err;
}
/* @@@ Make FCS stripping configurable. */
desc->pkt_length -= 4;
if (unlikely(!netif_running(nds[desc->channel])))
goto err;
skb = netdev_alloc_skb_ip_align(dev, desc->pkt_length);
if (likely(skb != NULL)) {
skb_copy_to_linear_data(skb, buf, desc->pkt_length);
skb_put(skb, desc->pkt_length);
skb->protocol = eth_type_trans(skb, nds[desc->channel]);
netif_receive_skb(skb);
}
err:
ixp2000_reg_write(RING_RX_PENDING, _desc);
processed++;
}
return processed;
}
/* dev always points to nds[0]. */
static int ixpdev_poll(struct napi_struct *napi, int budget)
{
struct ixpdev_priv *ip = container_of(napi, struct ixpdev_priv, napi);
struct net_device *dev = ip->dev;
int rx;
rx = 0;
do {
ixp2000_reg_write(IXP2000_IRQ_THD_RAW_STATUS_A_0, 0x00ff);
rx = ixpdev_rx(dev, rx, budget);
if (rx >= budget)
break;
} while (ixp2000_reg_read(IXP2000_IRQ_THD_RAW_STATUS_A_0) & 0x00ff);
napi_complete(napi);
ixp2000_reg_write(IXP2000_IRQ_THD_ENABLE_SET_A_0, 0x00ff);
return rx;
}
static void ixpdev_tx_complete(void)
{
int channel;
u32 wake;
wake = 0;
while (1) {
struct ixpdev_priv *ip;
u32 desc;
int entry;
desc = ixp2000_reg_read(RING_TX_DONE);
if (desc == 0)
break;
/* @@@ Check whether entries come back in order. */
entry = (desc - TX_BUF_DESC_BASE) / sizeof(struct ixpdev_tx_desc);
channel = tx_desc[entry].channel;
if (channel < 0 || channel >= nds_count) {
printk(KERN_ERR "ixp2000: txcomp channel index "
"out of bounds (%d, %.8i, %d)\n",
channel, (unsigned int)desc, entry);
continue;
}
ip = netdev_priv(nds[channel]);
if (ip->tx_queue_entries == TX_BUF_COUNT_PER_CHAN)
wake |= 1 << channel;
ip->tx_queue_entries--;
}
for (channel = 0; wake != 0; channel++) {
if (wake & (1 << channel)) {
netif_wake_queue(nds[channel]);
wake &= ~(1 << channel);
}
}
}
static irqreturn_t ixpdev_interrupt(int irq, void *dev_id)
{
u32 status;
status = ixp2000_reg_read(IXP2000_IRQ_THD_STATUS_A_0);
if (status == 0)
return IRQ_NONE;
/*
* Any of the eight receive units signaled RX?
*/
if (status & 0x00ff) {
struct net_device *dev = nds[0];
struct ixpdev_priv *ip = netdev_priv(dev);
ixp2000_reg_wrb(IXP2000_IRQ_THD_ENABLE_CLEAR_A_0, 0x00ff);
if (likely(napi_schedule_prep(&ip->napi))) {
__napi_schedule(&ip->napi);
} else {
printk(KERN_CRIT "ixp2000: irq while polling!!\n");
}
}
/*
* Any of the eight transmit units signaled TXdone?
*/
if (status & 0xff00) {
ixp2000_reg_wrb(IXP2000_IRQ_THD_RAW_STATUS_A_0, 0xff00);
ixpdev_tx_complete();
}
return IRQ_HANDLED;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void ixpdev_poll_controller(struct net_device *dev)
{
disable_irq(IRQ_IXP2000_THDA0);
ixpdev_interrupt(IRQ_IXP2000_THDA0, dev);
enable_irq(IRQ_IXP2000_THDA0);
}
#endif
static int ixpdev_open(struct net_device *dev)
{
struct ixpdev_priv *ip = netdev_priv(dev);
int err;
napi_enable(&ip->napi);
if (!nds_open++) {
err = request_irq(IRQ_IXP2000_THDA0, ixpdev_interrupt,
IRQF_SHARED, "ixp2000_eth", nds);
if (err) {
nds_open--;
napi_disable(&ip->napi);
return err;
}
ixp2000_reg_write(IXP2000_IRQ_THD_ENABLE_SET_A_0, 0xffff);
}
set_port_admin_status(ip->channel, 1);
netif_start_queue(dev);
return 0;
}
static int ixpdev_close(struct net_device *dev)
{
struct ixpdev_priv *ip = netdev_priv(dev);
netif_stop_queue(dev);
napi_disable(&ip->napi);
set_port_admin_status(ip->channel, 0);
if (!--nds_open) {
ixp2000_reg_write(IXP2000_IRQ_THD_ENABLE_CLEAR_A_0, 0xffff);
free_irq(IRQ_IXP2000_THDA0, nds);
}
return 0;
}
static struct net_device_stats *ixpdev_get_stats(struct net_device *dev)
{
struct ixpdev_priv *ip = netdev_priv(dev);
pm3386_get_stats(ip->channel, &(dev->stats));
return &(dev->stats);
}
static const struct net_device_ops ixpdev_netdev_ops = {
.ndo_open = ixpdev_open,
.ndo_stop = ixpdev_close,
.ndo_start_xmit = ixpdev_xmit,
.ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_get_stats = ixpdev_get_stats,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ixpdev_poll_controller,
#endif
};
struct net_device *ixpdev_alloc(int channel, int sizeof_priv)
{
struct net_device *dev;
struct ixpdev_priv *ip;
dev = alloc_etherdev(sizeof_priv);
if (dev == NULL)
return NULL;
dev->netdev_ops = &ixpdev_netdev_ops;
dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM;
ip = netdev_priv(dev);
ip->dev = dev;
netif_napi_add(dev, &ip->napi, ixpdev_poll, 64);
ip->channel = channel;
ip->tx_queue_entries = 0;
return dev;
}
int ixpdev_init(int __nds_count, struct net_device **__nds,
void (*__set_port_admin_status)(int port, int up))
{
int i;
int err;
BUILD_BUG_ON(RX_BUF_COUNT > 192 || TX_BUF_COUNT > 192);
printk(KERN_INFO "IXP2000 MSF ethernet driver %s\n", DRV_MODULE_VERSION);
nds_count = __nds_count;
nds = __nds;
set_port_admin_status = __set_port_admin_status;
for (i = 0; i < RX_BUF_COUNT; i++) {
void *buf;
buf = (void *)get_zeroed_page(GFP_KERNEL);
if (buf == NULL) {
err = -ENOMEM;
while (--i >= 0)
free_page((unsigned long)phys_to_virt(rx_desc[i].buf_addr));
goto err_out;
}
rx_desc[i].buf_addr = virt_to_phys(buf);
rx_desc[i].buf_length = PAGE_SIZE;
}
/* @@@ Maybe we shouldn't be preallocating TX buffers. */
for (i = 0; i < TX_BUF_COUNT; i++) {
void *buf;
buf = (void *)get_zeroed_page(GFP_KERNEL);
if (buf == NULL) {
err = -ENOMEM;
while (--i >= 0)
free_page((unsigned long)phys_to_virt(tx_desc[i].buf_addr));
goto err_free_rx;
}
tx_desc[i].buf_addr = virt_to_phys(buf);
}
/* 256 entries, ring status set means 'empty', base address 0x0000. */
ixp2000_reg_write(RING_RX_PENDING_BASE, 0x44000000);
ixp2000_reg_write(RING_RX_PENDING_HEAD, 0x00000000);
ixp2000_reg_write(RING_RX_PENDING_TAIL, 0x00000000);
/* 256 entries, ring status set means 'full', base address 0x0400. */
ixp2000_reg_write(RING_RX_DONE_BASE, 0x40000400);
ixp2000_reg_write(RING_RX_DONE_HEAD, 0x00000000);
ixp2000_reg_write(RING_RX_DONE_TAIL, 0x00000000);
for (i = 0; i < RX_BUF_COUNT; i++) {
ixp2000_reg_write(RING_RX_PENDING,
RX_BUF_DESC_BASE + (i * sizeof(struct ixpdev_rx_desc)));
}
ixp2000_uengine_load(0, &ixp2400_rx);
ixp2000_uengine_start_contexts(0, 0xff);
/* 256 entries, ring status set means 'empty', base address 0x0800. */
ixp2000_reg_write(RING_TX_PENDING_BASE, 0x44000800);
ixp2000_reg_write(RING_TX_PENDING_HEAD, 0x00000000);
ixp2000_reg_write(RING_TX_PENDING_TAIL, 0x00000000);
/* 256 entries, ring status set means 'full', base address 0x0c00. */
ixp2000_reg_write(RING_TX_DONE_BASE, 0x40000c00);
ixp2000_reg_write(RING_TX_DONE_HEAD, 0x00000000);
ixp2000_reg_write(RING_TX_DONE_TAIL, 0x00000000);
ixp2000_uengine_load(1, &ixp2400_tx);
ixp2000_uengine_start_contexts(1, 0xff);
for (i = 0; i < nds_count; i++) {
err = register_netdev(nds[i]);
if (err) {
while (--i >= 0)
unregister_netdev(nds[i]);
goto err_free_tx;
}
}
for (i = 0; i < nds_count; i++) {
printk(KERN_INFO "%s: IXP2000 MSF ethernet (port %d), %pM.\n",
nds[i]->name, i, nds[i]->dev_addr);
}
return 0;
err_free_tx:
for (i = 0; i < TX_BUF_COUNT; i++)
free_page((unsigned long)phys_to_virt(tx_desc[i].buf_addr));
err_free_rx:
for (i = 0; i < RX_BUF_COUNT; i++)
free_page((unsigned long)phys_to_virt(rx_desc[i].buf_addr));
err_out:
return err;
}
void ixpdev_deinit(void)
{
int i;
/* @@@ Flush out pending packets. */
for (i = 0; i < nds_count; i++)
unregister_netdev(nds[i]);
ixp2000_uengine_stop_contexts(1, 0xff);
ixp2000_uengine_stop_contexts(0, 0xff);
ixp2000_uengine_reset(0x3);
for (i = 0; i < TX_BUF_COUNT; i++)
free_page((unsigned long)phys_to_virt(tx_desc[i].buf_addr));
for (i = 0; i < RX_BUF_COUNT; i++)
free_page((unsigned long)phys_to_virt(rx_desc[i].buf_addr));
}

29
drivers/net/ethernet/xscale/ixp2000/ixpdev.h
View File

@ -1,29 +0,0 @@
/*
* IXP2000 MSF network device driver
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __IXPDEV_H
#define __IXPDEV_H
struct ixpdev_priv
{
struct net_device *dev;
struct napi_struct napi;
int channel;
int tx_queue_entries;
};
struct net_device *ixpdev_alloc(int channel, int sizeof_priv);
int ixpdev_init(int num_ports, struct net_device **nds,
void (*set_port_admin_status)(int port, int up));
void ixpdev_deinit(void);
#endif

57
drivers/net/ethernet/xscale/ixp2000/ixpdev_priv.h
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@ -1,57 +0,0 @@
/*
* IXP2000 MSF network device driver
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __IXPDEV_PRIV_H
#define __IXPDEV_PRIV_H
#define RX_BUF_DESC_BASE 0x00001000
#define RX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_rx_desc)))
#define TX_BUF_DESC_BASE 0x00002000
#define TX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_tx_desc)))
#define TX_BUF_COUNT_PER_CHAN (TX_BUF_COUNT / 4)
#define RING_RX_PENDING ((u32 *)IXP2000_SCRATCH_RING_VIRT_BASE)
#define RING_RX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 4))
#define RING_TX_PENDING ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 8))
#define RING_TX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 12))
#define SCRATCH_REG(x) ((u32 *)(IXP2000_GLOBAL_REG_VIRT_BASE | 0x0800 | (x)))
#define RING_RX_PENDING_BASE SCRATCH_REG(0x00)
#define RING_RX_PENDING_HEAD SCRATCH_REG(0x04)
#define RING_RX_PENDING_TAIL SCRATCH_REG(0x08)
#define RING_RX_DONE_BASE SCRATCH_REG(0x10)
#define RING_RX_DONE_HEAD SCRATCH_REG(0x14)
#define RING_RX_DONE_TAIL SCRATCH_REG(0x18)
#define RING_TX_PENDING_BASE SCRATCH_REG(0x20)
#define RING_TX_PENDING_HEAD SCRATCH_REG(0x24)
#define RING_TX_PENDING_TAIL SCRATCH_REG(0x28)
#define RING_TX_DONE_BASE SCRATCH_REG(0x30)
#define RING_TX_DONE_HEAD SCRATCH_REG(0x34)
#define RING_TX_DONE_TAIL SCRATCH_REG(0x38)
struct ixpdev_rx_desc
{
u32 buf_addr;
u32 buf_length;
u32 channel;
u32 pkt_length;
};
struct ixpdev_tx_desc
{
u32 buf_addr;
u32 pkt_length;
u32 channel;
u32 unused;
};
#endif

351
drivers/net/ethernet/xscale/ixp2000/pm3386.c
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@ -1,351 +0,0 @@
/*
* Helper functions for the PM3386s on the Radisys ENP2611
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <asm/io.h>
#include "pm3386.h"
/*
* Read from register 'reg' of PM3386 device 'pm'.
*/
static u16 pm3386_reg_read(int pm, int reg)
{
void *_reg;
u16 value;
_reg = (void *)ENP2611_PM3386_0_VIRT_BASE;
if (pm == 1)
_reg = (void *)ENP2611_PM3386_1_VIRT_BASE;
value = *((volatile u16 *)(_reg + (reg << 1)));
// printk(KERN_INFO "pm3386_reg_read(%d, %.3x) = %.8x\n", pm, reg, value);
return value;
}
/*
* Write to register 'reg' of PM3386 device 'pm', and perform
* a readback from the identification register.
*/
static void pm3386_reg_write(int pm, int reg, u16 value)
{
void *_reg;
u16 dummy;
// printk(KERN_INFO "pm3386_reg_write(%d, %.3x, %.8x)\n", pm, reg, value);
_reg = (void *)ENP2611_PM3386_0_VIRT_BASE;
if (pm == 1)
_reg = (void *)ENP2611_PM3386_1_VIRT_BASE;
*((volatile u16 *)(_reg + (reg << 1))) = value;
dummy = *((volatile u16 *)_reg);
__asm__ __volatile__("mov %0, %0" : "+r" (dummy));
}
/*
* Read from port 'port' register 'reg', where the registers
* for the different ports are 'spacing' registers apart.
*/
static u16 pm3386_port_reg_read(int port, int _reg, int spacing)
{
int reg;
reg = _reg;
if (port & 1)
reg += spacing;
return pm3386_reg_read(port >> 1, reg);
}
/*
* Write to port 'port' register 'reg', where the registers
* for the different ports are 'spacing' registers apart.
*/
static void pm3386_port_reg_write(int port, int _reg, int spacing, u16 value)
{
int reg;
reg = _reg;
if (port & 1)
reg += spacing;
pm3386_reg_write(port >> 1, reg, value);
}
int pm3386_secondary_present(void)
{
return pm3386_reg_read(1, 0) == 0x3386;
}
void pm3386_reset(void)
{
u8 mac[3][6];
int secondary;
secondary = pm3386_secondary_present();
/* Save programmed MAC addresses. */
pm3386_get_mac(0, mac[0]);
pm3386_get_mac(1, mac[1]);
if (secondary)
pm3386_get_mac(2, mac[2]);
/* Assert analog and digital reset. */
pm3386_reg_write(0, 0x002, 0x0060);
if (secondary)
pm3386_reg_write(1, 0x002, 0x0060);
mdelay(1);
/* Deassert analog reset. */
pm3386_reg_write(0, 0x002, 0x0062);
if (secondary)
pm3386_reg_write(1, 0x002, 0x0062);
mdelay(10);
/* Deassert digital reset. */
pm3386_reg_write(0, 0x002, 0x0063);
if (secondary)
pm3386_reg_write(1, 0x002, 0x0063);
mdelay(10);
/* Restore programmed MAC addresses. */
pm3386_set_mac(0, mac[0]);
pm3386_set_mac(1, mac[1]);
if (secondary)
pm3386_set_mac(2, mac[2]);
/* Disable carrier on all ports. */
pm3386_set_carrier(0, 0);
pm3386_set_carrier(1, 0);
if (secondary)
pm3386_set_carrier(2, 0);
}
static u16 swaph(u16 x)
{
return ((x << 8) | (x >> 8)) & 0xffff;
}
int pm3386_port_count(void)
{
return 2 + pm3386_secondary_present();
}
void pm3386_init_port(int port)
{
int pm = port >> 1;
/*
* Work around ENP2611 bootloader programming MAC address
* in reverse.
*/
if (pm3386_port_reg_read(port, 0x30a, 0x100) == 0x0000 &&
(pm3386_port_reg_read(port, 0x309, 0x100) & 0xff00) == 0x5000) {
u16 temp[3];
temp[0] = pm3386_port_reg_read(port, 0x308, 0x100);
temp[1] = pm3386_port_reg_read(port, 0x309, 0x100);
temp[2] = pm3386_port_reg_read(port, 0x30a, 0x100);
pm3386_port_reg_write(port, 0x308, 0x100, swaph(temp[2]));
pm3386_port_reg_write(port, 0x309, 0x100, swaph(temp[1]));
pm3386_port_reg_write(port, 0x30a, 0x100, swaph(temp[0]));
}
/*
* Initialise narrowbanding mode. See application note 2010486
* for more information. (@@@ We also need to issue a reset
* when ROOL or DOOL are detected.)
*/
pm3386_port_reg_write(port, 0x708, 0x10, 0xd055);
udelay(500);
pm3386_port_reg_write(port, 0x708, 0x10, 0x5055);
/*
* SPI-3 ingress block. Set 64 bytes SPI-3 burst size
* towards SPI-3 bridge.
*/
pm3386_port_reg_write(port, 0x122, 0x20, 0x0002);
/*
* Enable ingress protocol checking, and soft reset the
* SPI-3 ingress block.
*/
pm3386_reg_write(pm, 0x103, 0x0003);
while (!(pm3386_reg_read(pm, 0x103) & 0x80))
;
/*
* SPI-3 egress block. Gather 12288 bytes of the current
* packet in the TX fifo before initiating transmit on the
* SERDES interface. (Prevents TX underflows.)
*/
pm3386_port_reg_write(port, 0x221, 0x20, 0x0007);
/*
* Enforce odd parity from the SPI-3 bridge, and soft reset
* the SPI-3 egress block.
*/
pm3386_reg_write(pm, 0x203, 0x000d & ~(4 << (port & 1)));
while ((pm3386_reg_read(pm, 0x203) & 0x000c) != 0x000c)
;
/*
* EGMAC block. Set this channels to reject long preambles,
* not send or transmit PAUSE frames, enable preamble checking,
* disable frame length checking, enable FCS appending, enable
* TX frame padding.
*/
pm3386_port_reg_write(port, 0x302, 0x100, 0x0113);
/*
* Soft reset the EGMAC block.
*/
pm3386_port_reg_write(port, 0x301, 0x100, 0x8000);
pm3386_port_reg_write(port, 0x301, 0x100, 0x0000);
/*
* Auto-sense autonegotiation status.
*/
pm3386_port_reg_write(port, 0x306, 0x100, 0x0100);
/*
* Allow reception of jumbo frames.
*/
pm3386_port_reg_write(port, 0x310, 0x100, 9018);
/*
* Allow transmission of jumbo frames.
*/
pm3386_port_reg_write(port, 0x336, 0x100, 9018);
/* @@@ Should set 0x337/0x437 (RX forwarding threshold.) */
/*
* Set autonegotiation parameters to 'no PAUSE, full duplex.'
*/
pm3386_port_reg_write(port, 0x31c, 0x100, 0x0020);
/*
* Enable and restart autonegotiation.
*/
pm3386_port_reg_write(port, 0x318, 0x100, 0x0003);
pm3386_port_reg_write(port, 0x318, 0x100, 0x0002);
}
void pm3386_get_mac(int port, u8 *mac)
{
u16 temp;
temp = pm3386_port_reg_read(port, 0x308, 0x100);
mac[0] = temp & 0xff;
mac[1] = (temp >> 8) & 0xff;
temp = pm3386_port_reg_read(port, 0x309, 0x100);
mac[2] = temp & 0xff;
mac[3] = (temp >> 8) & 0xff;
temp = pm3386_port_reg_read(port, 0x30a, 0x100);
mac[4] = temp & 0xff;
mac[5] = (temp >> 8) & 0xff;
}
void pm3386_set_mac(int port, u8 *mac)
{
pm3386_port_reg_write(port, 0x308, 0x100, (mac[1] << 8) | mac[0]);
pm3386_port_reg_write(port, 0x309, 0x100, (mac[3] << 8) | mac[2]);
pm3386_port_reg_write(port, 0x30a, 0x100, (mac[5] << 8) | mac[4]);
}
static u32 pm3386_get_stat(int port, u16 base)
{
u32 value;
value = pm3386_port_reg_read(port, base, 0x100);
value |= pm3386_port_reg_read(port, base + 1, 0x100) << 16;
return value;
}
void pm3386_get_stats(int port, struct net_device_stats *stats)
{
/*
* Snapshot statistics counters.
*/
pm3386_port_reg_write(port, 0x500, 0x100, 0x0001);
while (pm3386_port_reg_read(port, 0x500, 0x100) & 0x0001)
;
memset(stats, 0, sizeof(*stats));
stats->rx_packets = pm3386_get_stat(port, 0x510);
stats->tx_packets = pm3386_get_stat(port, 0x590);
stats->rx_bytes = pm3386_get_stat(port, 0x514);
stats->tx_bytes = pm3386_get_stat(port, 0x594);
/* @@@ Add other stats. */
}
void pm3386_set_carrier(int port, int state)
{
pm3386_port_reg_write(port, 0x703, 0x10, state ? 0x1001 : 0x0000);
}
int pm3386_is_link_up(int port)
{
u16 temp;
temp = pm3386_port_reg_read(port, 0x31a, 0x100);
temp = pm3386_port_reg_read(port, 0x31a, 0x100);
return !!(temp & 0x0002);
}
void pm3386_enable_rx(int port)
{
u16 temp;
temp = pm3386_port_reg_read(port, 0x303, 0x100);
temp |= 0x1000;
pm3386_port_reg_write(port, 0x303, 0x100, temp);
}
void pm3386_disable_rx(int port)
{
u16 temp;
temp = pm3386_port_reg_read(port, 0x303, 0x100);
temp &= 0xefff;
pm3386_port_reg_write(port, 0x303, 0x100, temp);
}
void pm3386_enable_tx(int port)
{
u16 temp;
temp = pm3386_port_reg_read(port, 0x303, 0x100);
temp |= 0x4000;
pm3386_port_reg_write(port, 0x303, 0x100, temp);
}
void pm3386_disable_tx(int port)
{
u16 temp;
temp = pm3386_port_reg_read(port, 0x303, 0x100);
temp &= 0xbfff;
pm3386_port_reg_write(port, 0x303, 0x100, temp);
}
MODULE_LICENSE("GPL");

29
drivers/net/ethernet/xscale/ixp2000/pm3386.h
View File

@ -1,29 +0,0 @@
/*
* Helper functions for the PM3386s on the Radisys ENP2611
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __PM3386_H
#define __PM3386_H
void pm3386_reset(void);
int pm3386_port_count(void);
void pm3386_init_port(int port);
void pm3386_get_mac(int port, u8 *mac);
void pm3386_set_mac(int port, u8 *mac);
void pm3386_get_stats(int port, struct net_device_stats *stats);
void pm3386_set_carrier(int port, int state);
int pm3386_is_link_up(int port);
void pm3386_enable_rx(int port);
void pm3386_disable_rx(int port);
void pm3386_enable_tx(int port);
void pm3386_disable_tx(int port);
#endif