1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
4 *
5 * eHEA ethernet device driver for IBM eServer System p
6 *
7 * (C) Copyright IBM Corp. 2006
8 *
9 * Authors:
10 * Christoph Raisch <raisch@de.ibm.com>
11 * Jan-Bernd Themann <themann@de.ibm.com>
12 * Thomas Klein <tklein@de.ibm.com>
13 */
14
15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16
17 #include "ehea.h"
18 #include "ehea_phyp.h"
19
ehea_get_link_ksettings(struct net_device * dev,struct ethtool_link_ksettings * cmd)20 static int ehea_get_link_ksettings(struct net_device *dev,
21 struct ethtool_link_ksettings *cmd)
22 {
23 struct ehea_port *port = netdev_priv(dev);
24 u32 supported, advertising;
25 u32 speed;
26 int ret;
27
28 ret = ehea_sense_port_attr(port);
29
30 if (ret)
31 return ret;
32
33 if (netif_carrier_ok(dev)) {
34 switch (port->port_speed) {
35 case EHEA_SPEED_10M:
36 speed = SPEED_10;
37 break;
38 case EHEA_SPEED_100M:
39 speed = SPEED_100;
40 break;
41 case EHEA_SPEED_1G:
42 speed = SPEED_1000;
43 break;
44 case EHEA_SPEED_10G:
45 speed = SPEED_10000;
46 break;
47 default:
48 speed = -1;
49 break; /* BUG */
50 }
51 cmd->base.duplex = port->full_duplex == 1 ?
52 DUPLEX_FULL : DUPLEX_HALF;
53 } else {
54 speed = SPEED_UNKNOWN;
55 cmd->base.duplex = DUPLEX_UNKNOWN;
56 }
57 cmd->base.speed = speed;
58
59 if (cmd->base.speed == SPEED_10000) {
60 supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
61 advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
62 cmd->base.port = PORT_FIBRE;
63 } else {
64 supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
65 | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
66 | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
67 | SUPPORTED_TP);
68 advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
69 | ADVERTISED_TP);
70 cmd->base.port = PORT_TP;
71 }
72
73 cmd->base.autoneg = port->autoneg == 1 ?
74 AUTONEG_ENABLE : AUTONEG_DISABLE;
75
76 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
77 supported);
78 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
79 advertising);
80
81 return 0;
82 }
83
ehea_set_link_ksettings(struct net_device * dev,const struct ethtool_link_ksettings * cmd)84 static int ehea_set_link_ksettings(struct net_device *dev,
85 const struct ethtool_link_ksettings *cmd)
86 {
87 struct ehea_port *port = netdev_priv(dev);
88 int ret = 0;
89 u32 sp;
90
91 if (cmd->base.autoneg == AUTONEG_ENABLE) {
92 sp = EHEA_SPEED_AUTONEG;
93 goto doit;
94 }
95
96 switch (cmd->base.speed) {
97 case SPEED_10:
98 if (cmd->base.duplex == DUPLEX_FULL)
99 sp = H_SPEED_10M_F;
100 else
101 sp = H_SPEED_10M_H;
102 break;
103
104 case SPEED_100:
105 if (cmd->base.duplex == DUPLEX_FULL)
106 sp = H_SPEED_100M_F;
107 else
108 sp = H_SPEED_100M_H;
109 break;
110
111 case SPEED_1000:
112 if (cmd->base.duplex == DUPLEX_FULL)
113 sp = H_SPEED_1G_F;
114 else
115 ret = -EINVAL;
116 break;
117
118 case SPEED_10000:
119 if (cmd->base.duplex == DUPLEX_FULL)
120 sp = H_SPEED_10G_F;
121 else
122 ret = -EINVAL;
123 break;
124
125 default:
126 ret = -EINVAL;
127 break;
128 }
129
130 if (ret)
131 goto out;
132 doit:
133 ret = ehea_set_portspeed(port, sp);
134
135 if (!ret)
136 netdev_info(dev,
137 "Port speed successfully set: %dMbps %s Duplex\n",
138 port->port_speed,
139 port->full_duplex == 1 ? "Full" : "Half");
140 out:
141 return ret;
142 }
143
ehea_nway_reset(struct net_device * dev)144 static int ehea_nway_reset(struct net_device *dev)
145 {
146 struct ehea_port *port = netdev_priv(dev);
147 int ret;
148
149 ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
150
151 if (!ret)
152 netdev_info(port->netdev,
153 "Port speed successfully set: %dMbps %s Duplex\n",
154 port->port_speed,
155 port->full_duplex == 1 ? "Full" : "Half");
156 return ret;
157 }
158
ehea_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)159 static void ehea_get_drvinfo(struct net_device *dev,
160 struct ethtool_drvinfo *info)
161 {
162 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
163 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
164 }
165
ehea_get_msglevel(struct net_device * dev)166 static u32 ehea_get_msglevel(struct net_device *dev)
167 {
168 struct ehea_port *port = netdev_priv(dev);
169 return port->msg_enable;
170 }
171
ehea_set_msglevel(struct net_device * dev,u32 value)172 static void ehea_set_msglevel(struct net_device *dev, u32 value)
173 {
174 struct ehea_port *port = netdev_priv(dev);
175 port->msg_enable = value;
176 }
177
178 static const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
179 {"sig_comp_iv"},
180 {"swqe_refill_th"},
181 {"port resets"},
182 {"Receive errors"},
183 {"TCP cksum errors"},
184 {"IP cksum errors"},
185 {"Frame cksum errors"},
186 {"num SQ stopped"},
187 {"PR0 free_swqes"},
188 {"PR1 free_swqes"},
189 {"PR2 free_swqes"},
190 {"PR3 free_swqes"},
191 {"PR4 free_swqes"},
192 {"PR5 free_swqes"},
193 {"PR6 free_swqes"},
194 {"PR7 free_swqes"},
195 {"PR8 free_swqes"},
196 {"PR9 free_swqes"},
197 {"PR10 free_swqes"},
198 {"PR11 free_swqes"},
199 {"PR12 free_swqes"},
200 {"PR13 free_swqes"},
201 {"PR14 free_swqes"},
202 {"PR15 free_swqes"},
203 };
204
ehea_get_strings(struct net_device * dev,u32 stringset,u8 * data)205 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
206 {
207 if (stringset == ETH_SS_STATS) {
208 memcpy(data, &ehea_ethtool_stats_keys,
209 sizeof(ehea_ethtool_stats_keys));
210 }
211 }
212
ehea_get_sset_count(struct net_device * dev,int sset)213 static int ehea_get_sset_count(struct net_device *dev, int sset)
214 {
215 switch (sset) {
216 case ETH_SS_STATS:
217 return ARRAY_SIZE(ehea_ethtool_stats_keys);
218 default:
219 return -EOPNOTSUPP;
220 }
221 }
222
ehea_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)223 static void ehea_get_ethtool_stats(struct net_device *dev,
224 struct ethtool_stats *stats, u64 *data)
225 {
226 int i, k, tmp;
227 struct ehea_port *port = netdev_priv(dev);
228
229 for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
230 data[i] = 0;
231 i = 0;
232
233 data[i++] = port->sig_comp_iv;
234 data[i++] = port->port_res[0].swqe_refill_th;
235 data[i++] = port->resets;
236
237 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
238 tmp += port->port_res[k].p_stats.poll_receive_errors;
239 data[i++] = tmp;
240
241 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
242 tmp += port->port_res[k].p_stats.err_tcp_cksum;
243 data[i++] = tmp;
244
245 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
246 tmp += port->port_res[k].p_stats.err_ip_cksum;
247 data[i++] = tmp;
248
249 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
250 tmp += port->port_res[k].p_stats.err_frame_crc;
251 data[i++] = tmp;
252
253 for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
254 tmp += port->port_res[k].p_stats.queue_stopped;
255 data[i++] = tmp;
256
257 for (k = 0; k < 16; k++)
258 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
259 }
260
261 static const struct ethtool_ops ehea_ethtool_ops = {
262 .get_drvinfo = ehea_get_drvinfo,
263 .get_msglevel = ehea_get_msglevel,
264 .set_msglevel = ehea_set_msglevel,
265 .get_link = ethtool_op_get_link,
266 .get_strings = ehea_get_strings,
267 .get_sset_count = ehea_get_sset_count,
268 .get_ethtool_stats = ehea_get_ethtool_stats,
269 .nway_reset = ehea_nway_reset, /* Restart autonegotiation */
270 .get_link_ksettings = ehea_get_link_ksettings,
271 .set_link_ksettings = ehea_set_link_ksettings,
272 };
273
ehea_set_ethtool_ops(struct net_device * netdev)274 void ehea_set_ethtool_ops(struct net_device *netdev)
275 {
276 netdev->ethtool_ops = &ehea_ethtool_ops;
277 }
278