1 /*
2 * linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
3 *
4 * eHEA ethernet device driver for IBM eServer System p
5 *
6 * (C) Copyright IBM Corp. 2006
7 *
8 * Authors:
9 * Christoph Raisch <raisch@de.ibm.com>
10 * Jan-Bernd Themann <themann@de.ibm.com>
11 * Thomas Klein <tklein@de.ibm.com>
12 *
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30
31 #include "ehea.h"
32 #include "ehea_phyp.h"
33
ehea_get_link_ksettings(struct net_device * dev,struct ethtool_link_ksettings * cmd)34 static int ehea_get_link_ksettings(struct net_device *dev,
35 struct ethtool_link_ksettings *cmd)
36 {
37 struct ehea_port *port = netdev_priv(dev);
38 u32 supported, advertising;
39 u32 speed;
40 int ret;
41
42 ret = ehea_sense_port_attr(port);
43
44 if (ret)
45 return ret;
46
47 if (netif_carrier_ok(dev)) {
48 switch (port->port_speed) {
49 case EHEA_SPEED_10M:
50 speed = SPEED_10;
51 break;
52 case EHEA_SPEED_100M:
53 speed = SPEED_100;
54 break;
55 case EHEA_SPEED_1G:
56 speed = SPEED_1000;
57 break;
58 case EHEA_SPEED_10G:
59 speed = SPEED_10000;
60 break;
61 default:
62 speed = -1;
63 break; /* BUG */
64 }
65 cmd->base.duplex = port->full_duplex == 1 ?
66 DUPLEX_FULL : DUPLEX_HALF;
67 } else {
68 speed = SPEED_UNKNOWN;
69 cmd->base.duplex = DUPLEX_UNKNOWN;
70 }
71 cmd->base.speed = speed;
72
73 if (cmd->base.speed == SPEED_10000) {
74 supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
75 advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
76 cmd->base.port = PORT_FIBRE;
77 } else {
78 supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
79 | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
80 | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
81 | SUPPORTED_TP);
82 advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
83 | ADVERTISED_TP);
84 cmd->base.port = PORT_TP;
85 }
86
87 cmd->base.autoneg = port->autoneg == 1 ?
88 AUTONEG_ENABLE : AUTONEG_DISABLE;
89
90 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
91 supported);
92 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
93 advertising);
94
95 return 0;
96 }
97
ehea_set_link_ksettings(struct net_device * dev,const struct ethtool_link_ksettings * cmd)98 static int ehea_set_link_ksettings(struct net_device *dev,
99 const struct ethtool_link_ksettings *cmd)
100 {
101 struct ehea_port *port = netdev_priv(dev);
102 int ret = 0;
103 u32 sp;
104
105 if (cmd->base.autoneg == AUTONEG_ENABLE) {
106 sp = EHEA_SPEED_AUTONEG;
107 goto doit;
108 }
109
110 switch (cmd->base.speed) {
111 case SPEED_10:
112 if (cmd->base.duplex == DUPLEX_FULL)
113 sp = H_SPEED_10M_F;
114 else
115 sp = H_SPEED_10M_H;
116 break;
117
118 case SPEED_100:
119 if (cmd->base.duplex == DUPLEX_FULL)
120 sp = H_SPEED_100M_F;
121 else
122 sp = H_SPEED_100M_H;
123 break;
124
125 case SPEED_1000:
126 if (cmd->base.duplex == DUPLEX_FULL)
127 sp = H_SPEED_1G_F;
128 else
129 ret = -EINVAL;
130 break;
131
132 case SPEED_10000:
133 if (cmd->base.duplex == DUPLEX_FULL)
134 sp = H_SPEED_10G_F;
135 else
136 ret = -EINVAL;
137 break;
138
139 default:
140 ret = -EINVAL;
141 break;
142 }
143
144 if (ret)
145 goto out;
146 doit:
147 ret = ehea_set_portspeed(port, sp);
148
149 if (!ret)
150 netdev_info(dev,
151 "Port speed successfully set: %dMbps %s Duplex\n",
152 port->port_speed,
153 port->full_duplex == 1 ? "Full" : "Half");
154 out:
155 return ret;
156 }
157
ehea_nway_reset(struct net_device * dev)158 static int ehea_nway_reset(struct net_device *dev)
159 {
160 struct ehea_port *port = netdev_priv(dev);
161 int ret;
162
163 ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
164
165 if (!ret)
166 netdev_info(port->netdev,
167 "Port speed successfully set: %dMbps %s Duplex\n",
168 port->port_speed,
169 port->full_duplex == 1 ? "Full" : "Half");
170 return ret;
171 }
172
ehea_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)173 static void ehea_get_drvinfo(struct net_device *dev,
174 struct ethtool_drvinfo *info)
175 {
176 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
177 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
178 }
179
ehea_get_msglevel(struct net_device * dev)180 static u32 ehea_get_msglevel(struct net_device *dev)
181 {
182 struct ehea_port *port = netdev_priv(dev);
183 return port->msg_enable;
184 }
185
ehea_set_msglevel(struct net_device * dev,u32 value)186 static void ehea_set_msglevel(struct net_device *dev, u32 value)
187 {
188 struct ehea_port *port = netdev_priv(dev);
189 port->msg_enable = value;
190 }
191
192 static const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
193 {"sig_comp_iv"},
194 {"swqe_refill_th"},
195 {"port resets"},
196 {"Receive errors"},
197 {"TCP cksum errors"},
198 {"IP cksum errors"},
199 {"Frame cksum errors"},
200 {"num SQ stopped"},
201 {"PR0 free_swqes"},
202 {"PR1 free_swqes"},
203 {"PR2 free_swqes"},
204 {"PR3 free_swqes"},
205 {"PR4 free_swqes"},
206 {"PR5 free_swqes"},
207 {"PR6 free_swqes"},
208 {"PR7 free_swqes"},
209 {"PR8 free_swqes"},
210 {"PR9 free_swqes"},
211 {"PR10 free_swqes"},
212 {"PR11 free_swqes"},
213 {"PR12 free_swqes"},
214 {"PR13 free_swqes"},
215 {"PR14 free_swqes"},
216 {"PR15 free_swqes"},
217 };
218
ehea_get_strings(struct net_device * dev,u32 stringset,u8 * data)219 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
220 {
221 if (stringset == ETH_SS_STATS) {
222 memcpy(data, &ehea_ethtool_stats_keys,
223 sizeof(ehea_ethtool_stats_keys));
224 }
225 }
226
ehea_get_sset_count(struct net_device * dev,int sset)227 static int ehea_get_sset_count(struct net_device *dev, int sset)
228 {
229 switch (sset) {
230 case ETH_SS_STATS:
231 return ARRAY_SIZE(ehea_ethtool_stats_keys);
232 default:
233 return -EOPNOTSUPP;
234 }
235 }
236
ehea_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)237 static void ehea_get_ethtool_stats(struct net_device *dev,
238 struct ethtool_stats *stats, u64 *data)
239 {
240 int i, k, tmp;
241 struct ehea_port *port = netdev_priv(dev);
242
243 for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
244 data[i] = 0;
245 i = 0;
246
247 data[i++] = port->sig_comp_iv;
248 data[i++] = port->port_res[0].swqe_refill_th;
249 data[i++] = port->resets;
250
251 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
252 tmp += port->port_res[k].p_stats.poll_receive_errors;
253 data[i++] = tmp;
254
255 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
256 tmp += port->port_res[k].p_stats.err_tcp_cksum;
257 data[i++] = tmp;
258
259 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
260 tmp += port->port_res[k].p_stats.err_ip_cksum;
261 data[i++] = tmp;
262
263 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
264 tmp += port->port_res[k].p_stats.err_frame_crc;
265 data[i++] = tmp;
266
267 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
268 tmp += port->port_res[k].p_stats.queue_stopped;
269 data[i++] = tmp;
270
271 for (k = 0; k < 16; k++)
272 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
273 }
274
275 static const struct ethtool_ops ehea_ethtool_ops = {
276 .get_drvinfo = ehea_get_drvinfo,
277 .get_msglevel = ehea_get_msglevel,
278 .set_msglevel = ehea_set_msglevel,
279 .get_link = ethtool_op_get_link,
280 .get_strings = ehea_get_strings,
281 .get_sset_count = ehea_get_sset_count,
282 .get_ethtool_stats = ehea_get_ethtool_stats,
283 .nway_reset = ehea_nway_reset, /* Restart autonegotiation */
284 .get_link_ksettings = ehea_get_link_ksettings,
285 .set_link_ksettings = ehea_set_link_ksettings,
286 };
287
ehea_set_ethtool_ops(struct net_device * netdev)288 void ehea_set_ethtool_ops(struct net_device *netdev)
289 {
290 netdev->ethtool_ops = &ehea_ethtool_ops;
291 }
292
