mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-30 16:07:39 +00:00
6ab3d5624e
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
249 lines
6.4 KiB
C
249 lines
6.4 KiB
C
/*
|
|
* 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
|
|
}
|
|
};
|
|
|
|
struct enp2611_ixpdev_priv
|
|
{
|
|
struct ixpdev_priv ixpdev_priv;
|
|
struct net_device_stats stats;
|
|
};
|
|
|
|
static struct net_device *nds[3];
|
|
static struct timer_list link_check_timer;
|
|
|
|
static struct net_device_stats *enp2611_get_stats(struct net_device *dev)
|
|
{
|
|
struct enp2611_ixpdev_priv *ip = netdev_priv(dev);
|
|
|
|
pm3386_get_stats(ip->ixpdev_priv.channel, &(ip->stats));
|
|
|
|
return &(ip->stats);
|
|
}
|
|
|
|
/* @@@ 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 enp2611_ixpdev_priv));
|
|
if (nds[i] == NULL) {
|
|
while (--i >= 0)
|
|
free_netdev(nds[i]);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
SET_MODULE_OWNER(nds[i]);
|
|
nds[i]->get_stats = enp2611_get_stats;
|
|
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");
|