1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright (C) 2003 - 2006 NetXen, Inc.
* All rights reserved.
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.
*
* Contact Information:
* info@netxen.com
* NetXen,
* 3965 Freedom Circle, Fourth floor,
* Santa Clara, CA 95054
*/
#include <linux/netdevice.h>
#include <linux/delay.h>
#include "netxen_nic.h"
#include "netxen_nic_hw.h"
#include "netxen_nic_phan_reg.h"
/*
* netxen_nic_get_stats - Get System Network Statistics
* @netdev: network interface device structure
*/
struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
{
struct netxen_adapter *adapter = netdev_priv(netdev);
struct net_device_stats *stats = &adapter->net_stats;
memset(stats, 0, sizeof(*stats));
/* total packets received */
stats->rx_packets = adapter->stats.no_rcv;
/* total packets transmitted */
stats->tx_packets = adapter->stats.xmitedframes +
adapter->stats.xmitfinished;
/* total bytes received */
stats->rx_bytes = adapter->stats.rxbytes;
/* total bytes transmitted */
stats->tx_bytes = adapter->stats.txbytes;
/* bad packets received */
stats->rx_errors = adapter->stats.rcvdbadskb;
/* packet transmit problems */
stats->tx_errors = adapter->stats.nocmddescriptor;
/* no space in linux buffers */
stats->rx_dropped = adapter->stats.updropped;
/* no space available in linux */
stats->tx_dropped = adapter->stats.txdropped;
return stats;
}
void netxen_indicate_link_status(struct netxen_adapter *adapter, u32 link)
{
struct net_device *netdev = adapter->netdev;
if (link)
netif_carrier_on(netdev);
else
netif_carrier_off(netdev);
}
void netxen_handle_port_int(struct netxen_adapter *adapter, u32 enable)
{
__u32 int_src;
/* This should clear the interrupt source */
if (adapter->phy_read)
adapter->phy_read(adapter,
NETXEN_NIU_GB_MII_MGMT_ADDR_INT_STATUS,
&int_src);
if (int_src == 0) {
DPRINTK(INFO, "No phy interrupts for port #%d\n", portno);
return;
}
if (adapter->disable_phy_interrupts)
adapter->disable_phy_interrupts(adapter);
if (netxen_get_phy_int_jabber(int_src))
DPRINTK(INFO, "Jabber interrupt \n");
if (netxen_get_phy_int_polarity_changed(int_src))
DPRINTK(INFO, "POLARITY CHANGED int \n");
if (netxen_get_phy_int_energy_detect(int_src))
DPRINTK(INFO, "ENERGY DETECT INT \n");
if (netxen_get_phy_int_downshift(int_src))
DPRINTK(INFO, "DOWNSHIFT INT \n");
/* write it down later.. */
if ((netxen_get_phy_int_speed_changed(int_src))
|| (netxen_get_phy_int_link_status_changed(int_src))) {
__u32 status;
DPRINTK(INFO, "SPEED CHANGED OR LINK STATUS CHANGED \n");
if (adapter->phy_read
&& adapter->phy_read(adapter,
NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
&status) == 0) {
if (netxen_get_phy_int_link_status_changed(int_src)) {
if (netxen_get_phy_link(status)) {
printk(KERN_INFO "%s: %s Link UP\n",
netxen_nic_driver_name,
adapter->netdev->name);
} else {
printk(KERN_INFO "%s: %s Link DOWN\n",
netxen_nic_driver_name,
adapter->netdev->name);
}
netxen_indicate_link_status(adapter,
netxen_get_phy_link
(status));
}
}
}
if (adapter->enable_phy_interrupts)
adapter->enable_phy_interrupts(adapter);
}
void netxen_nic_isr_other(struct netxen_adapter *adapter)
{
int portno = adapter->portnum;
u32 val, linkup, qg_linksup;
/* verify the offset */
val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
val = val >> physical_port[adapter->portnum];
if (val == adapter->ahw.qg_linksup)
return;
qg_linksup = adapter->ahw.qg_linksup;
adapter->ahw.qg_linksup = val;
DPRINTK(INFO, "link update 0x%08x\n", val);
linkup = val & 1;
if (linkup != (qg_linksup & 1)) {
printk(KERN_INFO "%s: %s PORT %d link %s\n",
adapter->netdev->name,
netxen_nic_driver_name, portno,
((linkup == 0) ? "down" : "up"));
netxen_indicate_link_status(adapter, linkup);
if (linkup)
netxen_nic_set_link_parameters(adapter);
}
}
void netxen_nic_gbe_handle_phy_intr(struct netxen_adapter *adapter)
{
netxen_nic_isr_other(adapter);
}
int netxen_nic_link_ok(struct netxen_adapter *adapter)
{
switch (adapter->ahw.board_type) {
case NETXEN_NIC_GBE:
return ((adapter->ahw.qg_linksup) & 1);
case NETXEN_NIC_XGBE:
return ((adapter->ahw.xg_linkup) & 1);
default:
printk(KERN_ERR"%s: Function: %s, Unknown board type\n",
netxen_nic_driver_name, __FUNCTION__);
break;
}
return 0;
}
void netxen_nic_xgbe_handle_phy_intr(struct netxen_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
u32 val, val1;
/* WINDOW = 1 */
val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
val >>= (physical_port[adapter->portnum] * 8);
val1 = val & 0xff;
if (adapter->ahw.xg_linkup == 1 && val1 != XG_LINK_UP) {
printk(KERN_INFO "%s: %s NIC Link is down\n",
netxen_nic_driver_name, netdev->name);
adapter->ahw.xg_linkup = 0;
if (netif_running(netdev)) {
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}
/* read twice to clear sticky bits */
/* WINDOW = 0 */
netxen_nic_read_w0(adapter, NETXEN_NIU_XG_STATUS, &val1);
netxen_nic_read_w0(adapter, NETXEN_NIU_XG_STATUS, &val1);
if ((val & 0xffb) != 0xffb) {
printk(KERN_INFO "%s ISR: Sync/Align BAD: 0x%08x\n",
netxen_nic_driver_name, val1);
}
} else if (adapter->ahw.xg_linkup == 0 && val1 == XG_LINK_UP) {
printk(KERN_INFO "%s: %s NIC Link is up\n",
netxen_nic_driver_name, netdev->name);
adapter->ahw.xg_linkup = 1;
netif_carrier_on(netdev);
netif_wake_queue(netdev);
}
}
|
