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path: root/drivers/net/ixp2000/enp2611.c
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Diffstat (limited to 'drivers/net/ixp2000/enp2611.c')
-rw-r--r--drivers/net/ixp2000/enp2611.c245
1 files changed, 245 insertions, 0 deletions
diff --git a/drivers/net/ixp2000/enp2611.c b/drivers/net/ixp2000/enp2611.c
new file mode 100644
index 000000000000..d82651a97bae
--- /dev/null
+++ b/drivers/net/ixp2000/enp2611.c
@@ -0,0 +1,245 @@
1/*
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.
5 *
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.
10 */
11
12#include <linux/config.h>
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/netdevice.h>
16#include <linux/etherdevice.h>
17#include <linux/init.h>
18#include <linux/moduleparam.h>
19#include <asm/arch/uengine.h>
20#include <asm/mach-types.h>
21#include <asm/io.h>
22#include "ixpdev.h"
23#include "caleb.h"
24#include "ixp2400-msf.h"
25#include "pm3386.h"
26
27/***********************************************************************
28 * The Radisys ENP2611 is a PCI form factor board with three SFP GBIC
29 * slots, connected via two PMC/Sierra 3386s and an SPI-3 bridge FPGA
30 * to the IXP2400.
31 *
32 * +-------------+
33 * SFP GBIC #0 ---+ | +---------+
34 * | PM3386 #0 +-------+ |
35 * SFP GBIC #1 ---+ | | "Caleb" | +---------+
36 * +-------------+ | | | |
37 * | SPI-3 +---------+ IXP2400 |
38 * +-------------+ | bridge | | |
39 * SFP GBIC #2 ---+ | | FPGA | +---------+
40 * | PM3386 #1 +-------+ |
41 * | | +---------+
42 * +-------------+
43 * ^ ^ ^
44 * | 1.25Gbaud | 104MHz | 104MHz
45 * | SERDES ea. | SPI-3 ea. | SPI-3
46 *
47 ***********************************************************************/
48static struct ixp2400_msf_parameters enp2611_msf_parameters =
49{
50 .rx_mode = IXP2400_RX_MODE_UTOPIA_POS |
51 IXP2400_RX_MODE_1x32 |
52 IXP2400_RX_MODE_MPHY |
53 IXP2400_RX_MODE_MPHY_32 |
54 IXP2400_RX_MODE_MPHY_POLLED_STATUS |
55 IXP2400_RX_MODE_MPHY_LEVEL3 |
56 IXP2400_RX_MODE_RBUF_SIZE_64,
57
58 .rxclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
59
60 .rx_poll_ports = 3,
61
62 .rx_channel_mode = {
63 IXP2400_PORT_RX_MODE_MASTER |
64 IXP2400_PORT_RX_MODE_POS_PHY |
65 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
66 IXP2400_PORT_RX_MODE_ODD_PARITY |
67 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
68
69 IXP2400_PORT_RX_MODE_MASTER |
70 IXP2400_PORT_RX_MODE_POS_PHY |
71 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
72 IXP2400_PORT_RX_MODE_ODD_PARITY |
73 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
74
75 IXP2400_PORT_RX_MODE_MASTER |
76 IXP2400_PORT_RX_MODE_POS_PHY |
77 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
78 IXP2400_PORT_RX_MODE_ODD_PARITY |
79 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
80
81 IXP2400_PORT_RX_MODE_MASTER |
82 IXP2400_PORT_RX_MODE_POS_PHY |
83 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
84 IXP2400_PORT_RX_MODE_ODD_PARITY |
85 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE
86 },
87
88 .tx_mode = IXP2400_TX_MODE_UTOPIA_POS |
89 IXP2400_TX_MODE_1x32 |
90 IXP2400_TX_MODE_MPHY |
91 IXP2400_TX_MODE_MPHY_32 |
92 IXP2400_TX_MODE_MPHY_POLLED_STATUS |
93 IXP2400_TX_MODE_MPHY_LEVEL3 |
94 IXP2400_TX_MODE_TBUF_SIZE_64,
95
96 .txclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
97
98 .tx_poll_ports = 3,
99
100 .tx_channel_mode = {
101 IXP2400_PORT_TX_MODE_MASTER |
102 IXP2400_PORT_TX_MODE_POS_PHY |
103 IXP2400_PORT_TX_MODE_ODD_PARITY |
104 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
105
106 IXP2400_PORT_TX_MODE_MASTER |
107 IXP2400_PORT_TX_MODE_POS_PHY |
108 IXP2400_PORT_TX_MODE_ODD_PARITY |
109 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
110
111 IXP2400_PORT_TX_MODE_MASTER |
112 IXP2400_PORT_TX_MODE_POS_PHY |
113 IXP2400_PORT_TX_MODE_ODD_PARITY |
114 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
115
116 IXP2400_PORT_TX_MODE_MASTER |
117 IXP2400_PORT_TX_MODE_POS_PHY |
118 IXP2400_PORT_TX_MODE_ODD_PARITY |
119 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE
120 }
121};
122
123struct enp2611_ixpdev_priv
124{
125 struct ixpdev_priv ixpdev_priv;
126 struct net_device_stats stats;
127};
128
129static struct net_device *nds[3];
130static struct timer_list link_check_timer;
131
132static struct net_device_stats *enp2611_get_stats(struct net_device *dev)
133{
134 struct enp2611_ixpdev_priv *ip = netdev_priv(dev);
135
136 pm3386_get_stats(ip->ixpdev_priv.channel, &(ip->stats));
137
138 return &(ip->stats);
139}
140
141/* @@@ Poll the SFP moddef0 line too. */
142/* @@@ Try to use the pm3386 DOOL interrupt as well. */
143static void enp2611_check_link_status(unsigned long __dummy)
144{
145 int i;
146
147 for (i = 0; i < 3; i++) {
148 struct net_device *dev;
149 int status;
150
151 dev = nds[i];
152
153 status = pm3386_is_link_up(i);
154 if (status && !netif_carrier_ok(dev)) {
155 /* @@@ Should report autonegotiation status. */
156 printk(KERN_INFO "%s: NIC Link is Up\n", dev->name);
157
158 pm3386_enable_tx(i);
159 caleb_enable_tx(i);
160 netif_carrier_on(dev);
161 } else if (!status && netif_carrier_ok(dev)) {
162 printk(KERN_INFO "%s: NIC Link is Down\n", dev->name);
163
164 netif_carrier_off(dev);
165 caleb_disable_tx(i);
166 pm3386_disable_tx(i);
167 }
168 }
169
170 link_check_timer.expires = jiffies + HZ / 10;
171 add_timer(&link_check_timer);
172}
173
174static void enp2611_set_port_admin_status(int port, int up)
175{
176 if (up) {
177 caleb_enable_rx(port);
178
179 pm3386_set_carrier(port, 1);
180 pm3386_enable_rx(port);
181 } else {
182 caleb_disable_tx(port);
183 pm3386_disable_tx(port);
184 /* @@@ Flush out pending packets. */
185 pm3386_set_carrier(port, 0);
186
187 pm3386_disable_rx(port);
188 caleb_disable_rx(port);
189 }
190}
191
192static int __init enp2611_init_module(void)
193{
194 int i;
195
196 if (!machine_is_enp2611())
197 return -ENODEV;
198
199 caleb_reset();
200 pm3386_reset();
201
202 for (i = 0; i < 3; i++) {
203 nds[i] = ixpdev_alloc(i, sizeof(struct enp2611_ixpdev_priv));
204 if (nds[i] == NULL) {
205 while (--i >= 0)
206 free_netdev(nds[i]);
207 return -ENOMEM;
208 }
209
210 SET_MODULE_OWNER(nds[i]);
211 nds[i]->get_stats = enp2611_get_stats;
212 pm3386_init_port(i);
213 pm3386_get_mac(i, nds[i]->dev_addr);
214 }
215
216 ixp2400_msf_init(&enp2611_msf_parameters);
217
218 if (ixpdev_init(3, nds, enp2611_set_port_admin_status)) {
219 for (i = 0; i < 3; i++)
220 free_netdev(nds[i]);
221 return -EINVAL;
222 }
223
224 init_timer(&link_check_timer);
225 link_check_timer.function = enp2611_check_link_status;
226 link_check_timer.expires = jiffies;
227 add_timer(&link_check_timer);
228
229 return 0;
230}
231
232static void __exit enp2611_cleanup_module(void)
233{
234 int i;
235
236 del_timer_sync(&link_check_timer);
237
238 ixpdev_deinit();
239 for (i = 0; i < 3; i++)
240 free_netdev(nds[i]);
241}
242
243module_init(enp2611_init_module);
244module_exit(enp2611_cleanup_module);
245MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 21:05:46 -0500