2 * IXP2400 MSF network device driver for the Radisys ENP2611
3 * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
4 * Dedicated to Marija Kulikova.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/netdevice.h>
15 #include <linux/etherdevice.h>
16 #include <linux/init.h>
17 #include <linux/moduleparam.h>
18 #include <asm/hardware/uengine.h>
19 #include <asm/mach-types.h>
23 #include "ixp2400-msf.h"
26 /***********************************************************************
27 * The Radisys ENP2611 is a PCI form factor board with three SFP GBIC
28 * slots, connected via two PMC/Sierra 3386s and an SPI-3 bridge FPGA
32 * SFP GBIC #0 ---+ | +---------+
33 * | PM3386 #0 +-------+ |
34 * SFP GBIC #1 ---+ | | "Caleb" | +---------+
35 * +-------------+ | | | |
36 * | SPI-3 +---------+ IXP2400 |
37 * +-------------+ | bridge | | |
38 * SFP GBIC #2 ---+ | | FPGA | +---------+
39 * | PM3386 #1 +-------+ |
43 * | 1.25Gbaud | 104MHz | 104MHz
44 * | SERDES ea. | SPI-3 ea. | SPI-3
46 ***********************************************************************/
47 static struct ixp2400_msf_parameters enp2611_msf_parameters =
49 .rx_mode = IXP2400_RX_MODE_UTOPIA_POS |
50 IXP2400_RX_MODE_1x32 |
51 IXP2400_RX_MODE_MPHY |
52 IXP2400_RX_MODE_MPHY_32 |
53 IXP2400_RX_MODE_MPHY_POLLED_STATUS |
54 IXP2400_RX_MODE_MPHY_LEVEL3 |
55 IXP2400_RX_MODE_RBUF_SIZE_64,
57 .rxclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
62 IXP2400_PORT_RX_MODE_MASTER |
63 IXP2400_PORT_RX_MODE_POS_PHY |
64 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
65 IXP2400_PORT_RX_MODE_ODD_PARITY |
66 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
68 IXP2400_PORT_RX_MODE_MASTER |
69 IXP2400_PORT_RX_MODE_POS_PHY |
70 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
71 IXP2400_PORT_RX_MODE_ODD_PARITY |
72 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
74 IXP2400_PORT_RX_MODE_MASTER |
75 IXP2400_PORT_RX_MODE_POS_PHY |
76 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
77 IXP2400_PORT_RX_MODE_ODD_PARITY |
78 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
80 IXP2400_PORT_RX_MODE_MASTER |
81 IXP2400_PORT_RX_MODE_POS_PHY |
82 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
83 IXP2400_PORT_RX_MODE_ODD_PARITY |
84 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE
87 .tx_mode = IXP2400_TX_MODE_UTOPIA_POS |
88 IXP2400_TX_MODE_1x32 |
89 IXP2400_TX_MODE_MPHY |
90 IXP2400_TX_MODE_MPHY_32 |
91 IXP2400_TX_MODE_MPHY_POLLED_STATUS |
92 IXP2400_TX_MODE_MPHY_LEVEL3 |
93 IXP2400_TX_MODE_TBUF_SIZE_64,
95 .txclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
100 IXP2400_PORT_TX_MODE_MASTER |
101 IXP2400_PORT_TX_MODE_POS_PHY |
102 IXP2400_PORT_TX_MODE_ODD_PARITY |
103 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
105 IXP2400_PORT_TX_MODE_MASTER |
106 IXP2400_PORT_TX_MODE_POS_PHY |
107 IXP2400_PORT_TX_MODE_ODD_PARITY |
108 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
110 IXP2400_PORT_TX_MODE_MASTER |
111 IXP2400_PORT_TX_MODE_POS_PHY |
112 IXP2400_PORT_TX_MODE_ODD_PARITY |
113 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
115 IXP2400_PORT_TX_MODE_MASTER |
116 IXP2400_PORT_TX_MODE_POS_PHY |
117 IXP2400_PORT_TX_MODE_ODD_PARITY |
118 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE
122 struct enp2611_ixpdev_priv
124 struct ixpdev_priv ixpdev_priv;
125 struct net_device_stats stats;
128 static struct net_device *nds[3];
129 static struct timer_list link_check_timer;
131 static struct net_device_stats *enp2611_get_stats(struct net_device *dev)
133 struct enp2611_ixpdev_priv *ip = netdev_priv(dev);
135 pm3386_get_stats(ip->ixpdev_priv.channel, &(ip->stats));
140 /* @@@ Poll the SFP moddef0 line too. */
141 /* @@@ Try to use the pm3386 DOOL interrupt as well. */
142 static void enp2611_check_link_status(unsigned long __dummy)
146 for (i = 0; i < 3; i++) {
147 struct net_device *dev;
154 status = pm3386_is_link_up(i);
155 if (status && !netif_carrier_ok(dev)) {
156 /* @@@ Should report autonegotiation status. */
157 printk(KERN_INFO "%s: NIC Link is Up\n", dev->name);
161 netif_carrier_on(dev);
162 } else if (!status && netif_carrier_ok(dev)) {
163 printk(KERN_INFO "%s: NIC Link is Down\n", dev->name);
165 netif_carrier_off(dev);
167 pm3386_disable_tx(i);
171 link_check_timer.expires = jiffies + HZ / 10;
172 add_timer(&link_check_timer);
175 static void enp2611_set_port_admin_status(int port, int up)
178 caleb_enable_rx(port);
180 pm3386_set_carrier(port, 1);
181 pm3386_enable_rx(port);
183 caleb_disable_tx(port);
184 pm3386_disable_tx(port);
185 /* @@@ Flush out pending packets. */
186 pm3386_set_carrier(port, 0);
188 pm3386_disable_rx(port);
189 caleb_disable_rx(port);
193 static int __init enp2611_init_module(void)
198 if (!machine_is_enp2611())
204 ports = pm3386_port_count();
205 for (i = 0; i < ports; i++) {
206 nds[i] = ixpdev_alloc(i, sizeof(struct enp2611_ixpdev_priv));
207 if (nds[i] == NULL) {
213 nds[i]->get_stats = enp2611_get_stats;
215 pm3386_get_mac(i, nds[i]->dev_addr);
218 ixp2400_msf_init(&enp2611_msf_parameters);
220 if (ixpdev_init(ports, nds, enp2611_set_port_admin_status)) {
221 for (i = 0; i < ports; i++)
227 init_timer(&link_check_timer);
228 link_check_timer.function = enp2611_check_link_status;
229 link_check_timer.expires = jiffies;
230 add_timer(&link_check_timer);
235 static void __exit enp2611_cleanup_module(void)
239 del_timer_sync(&link_check_timer);
242 for (i = 0; i < 3; i++)
246 module_init(enp2611_init_module);
247 module_exit(enp2611_cleanup_module);
248 MODULE_LICENSE("GPL");