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34196740 IR |
1 | /* Copyright 2014-2016 Freescale Semiconductor Inc. |
2 | * Copyright 2016 NXP | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions are met: | |
6 | * * Redistributions of source code must retain the above copyright | |
7 | * notice, this list of conditions and the following disclaimer. | |
8 | * * Redistributions in binary form must reproduce the above copyright | |
9 | * notice, this list of conditions and the following disclaimer in the | |
10 | * documentation and/or other materials provided with the distribution. | |
11 | * * Neither the name of Freescale Semiconductor nor the | |
12 | * names of its contributors may be used to endorse or promote products | |
13 | * derived from this software without specific prior written permission. | |
14 | * | |
15 | * | |
16 | * ALTERNATIVELY, this software may be distributed under the terms of the | |
17 | * GNU General Public License ("GPL") as published by the Free Software | |
18 | * Foundation, either version 2 of that License or (at your option) any | |
19 | * later version. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY | |
22 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
23 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
24 | * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY | |
25 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
26 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
27 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
28 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | #include "dpni.h" /* DPNI_LINK_OPT_* */ | |
34 | #include "dpaa2-eth.h" | |
35 | ||
36 | /* To be kept in sync with DPNI statistics */ | |
acbff8e3 | 37 | static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = { |
12afee80 IR |
38 | "[hw] rx frames", |
39 | "[hw] rx bytes", | |
40 | "[hw] rx mcast frames", | |
41 | "[hw] rx mcast bytes", | |
42 | "[hw] rx bcast frames", | |
43 | "[hw] rx bcast bytes", | |
44 | "[hw] tx frames", | |
45 | "[hw] tx bytes", | |
46 | "[hw] tx mcast frames", | |
47 | "[hw] tx mcast bytes", | |
48 | "[hw] tx bcast frames", | |
49 | "[hw] tx bcast bytes", | |
50 | "[hw] rx filtered frames", | |
51 | "[hw] rx discarded frames", | |
52 | "[hw] rx nobuffer discards", | |
53 | "[hw] tx discarded frames", | |
54 | "[hw] tx confirmed frames", | |
34196740 IR |
55 | }; |
56 | ||
57 | #define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats) | |
58 | ||
acbff8e3 | 59 | static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = { |
85047abd | 60 | /* per-cpu stats */ |
12afee80 IR |
61 | "[drv] tx conf frames", |
62 | "[drv] tx conf bytes", | |
63 | "[drv] tx sg frames", | |
64 | "[drv] tx sg bytes", | |
65 | "[drv] rx sg frames", | |
66 | "[drv] rx sg bytes", | |
67 | "[drv] enqueue portal busy", | |
85047abd | 68 | /* Channel stats */ |
12afee80 IR |
69 | "[drv] dequeue portal busy", |
70 | "[drv] channel pull errors", | |
71 | "[drv] cdan", | |
85047abd IR |
72 | }; |
73 | ||
74 | #define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras) | |
75 | ||
34196740 IR |
76 | static void dpaa2_eth_get_drvinfo(struct net_device *net_dev, |
77 | struct ethtool_drvinfo *drvinfo) | |
78 | { | |
79 | strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); | |
80 | strlcpy(drvinfo->version, dpaa2_eth_drv_version, | |
81 | sizeof(drvinfo->version)); | |
82 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
83 | strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent), | |
84 | sizeof(drvinfo->bus_info)); | |
85 | } | |
86 | ||
87 | static int | |
88 | dpaa2_eth_get_link_ksettings(struct net_device *net_dev, | |
89 | struct ethtool_link_ksettings *link_settings) | |
90 | { | |
91 | struct dpni_link_state state = {0}; | |
92 | int err = 0; | |
93 | struct dpaa2_eth_priv *priv = netdev_priv(net_dev); | |
94 | ||
95 | err = dpni_get_link_state(priv->mc_io, 0, priv->mc_token, &state); | |
96 | if (err) { | |
77160af3 | 97 | netdev_err(net_dev, "ERROR %d getting link state\n", err); |
34196740 IR |
98 | goto out; |
99 | } | |
100 | ||
101 | /* At the moment, we have no way of interrogating the DPMAC | |
102 | * from the DPNI side - and for that matter there may exist | |
103 | * no DPMAC at all. So for now we just don't report anything | |
104 | * beyond the DPNI attributes. | |
105 | */ | |
106 | if (state.options & DPNI_LINK_OPT_AUTONEG) | |
107 | link_settings->base.autoneg = AUTONEG_ENABLE; | |
108 | if (!(state.options & DPNI_LINK_OPT_HALF_DUPLEX)) | |
109 | link_settings->base.duplex = DUPLEX_FULL; | |
110 | link_settings->base.speed = state.rate; | |
111 | ||
112 | out: | |
113 | return err; | |
114 | } | |
115 | ||
116 | static int | |
117 | dpaa2_eth_set_link_ksettings(struct net_device *net_dev, | |
118 | const struct ethtool_link_ksettings *link_settings) | |
119 | { | |
120 | struct dpni_link_cfg cfg = {0}; | |
121 | struct dpaa2_eth_priv *priv = netdev_priv(net_dev); | |
122 | int err = 0; | |
123 | ||
124 | netdev_dbg(net_dev, "Setting link parameters..."); | |
125 | ||
126 | /* Due to a temporary MC limitation, the DPNI must be down | |
127 | * in order to be able to change link settings. Taking steps to let | |
128 | * the user know that. | |
129 | */ | |
130 | if (netif_running(net_dev)) { | |
131 | netdev_info(net_dev, "Sorry, interface must be brought down first.\n"); | |
132 | return -EACCES; | |
133 | } | |
134 | ||
135 | cfg.rate = link_settings->base.speed; | |
136 | if (link_settings->base.autoneg == AUTONEG_ENABLE) | |
137 | cfg.options |= DPNI_LINK_OPT_AUTONEG; | |
138 | else | |
139 | cfg.options &= ~DPNI_LINK_OPT_AUTONEG; | |
140 | if (link_settings->base.duplex == DUPLEX_HALF) | |
141 | cfg.options |= DPNI_LINK_OPT_HALF_DUPLEX; | |
142 | else | |
143 | cfg.options &= ~DPNI_LINK_OPT_HALF_DUPLEX; | |
144 | ||
145 | err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg); | |
146 | if (err) | |
147 | /* ethtool will be loud enough if we return an error; no point | |
148 | * in putting our own error message on the console by default | |
149 | */ | |
77160af3 | 150 | netdev_dbg(net_dev, "ERROR %d setting link cfg\n", err); |
34196740 IR |
151 | |
152 | return err; | |
153 | } | |
154 | ||
155 | static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset, | |
156 | u8 *data) | |
157 | { | |
158 | u8 *p = data; | |
159 | int i; | |
160 | ||
161 | switch (stringset) { | |
162 | case ETH_SS_STATS: | |
163 | for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) { | |
164 | strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN); | |
165 | p += ETH_GSTRING_LEN; | |
166 | } | |
85047abd IR |
167 | for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) { |
168 | strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN); | |
169 | p += ETH_GSTRING_LEN; | |
170 | } | |
34196740 IR |
171 | break; |
172 | } | |
173 | } | |
174 | ||
175 | static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset) | |
176 | { | |
177 | switch (sset) { | |
178 | case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */ | |
85047abd | 179 | return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS; |
34196740 IR |
180 | default: |
181 | return -EOPNOTSUPP; | |
182 | } | |
183 | } | |
184 | ||
185 | /** Fill in hardware counters, as returned by MC. | |
186 | */ | |
187 | static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev, | |
188 | struct ethtool_stats *stats, | |
189 | u64 *data) | |
190 | { | |
191 | int i = 0; | |
192 | int j, k, err; | |
193 | int num_cnt; | |
194 | union dpni_statistics dpni_stats; | |
85047abd IR |
195 | u64 cdan = 0; |
196 | u64 portal_busy = 0, pull_err = 0; | |
34196740 | 197 | struct dpaa2_eth_priv *priv = netdev_priv(net_dev); |
85047abd IR |
198 | struct dpaa2_eth_drv_stats *extras; |
199 | struct dpaa2_eth_ch_stats *ch_stats; | |
34196740 | 200 | |
85047abd IR |
201 | memset(data, 0, |
202 | sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS)); | |
34196740 IR |
203 | |
204 | /* Print standard counters, from DPNI statistics */ | |
205 | for (j = 0; j <= 2; j++) { | |
206 | err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token, | |
207 | j, &dpni_stats); | |
208 | if (err != 0) | |
77160af3 | 209 | netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j); |
34196740 IR |
210 | switch (j) { |
211 | case 0: | |
212 | num_cnt = sizeof(dpni_stats.page_0) / sizeof(u64); | |
213 | break; | |
214 | case 1: | |
215 | num_cnt = sizeof(dpni_stats.page_1) / sizeof(u64); | |
216 | break; | |
217 | case 2: | |
218 | num_cnt = sizeof(dpni_stats.page_2) / sizeof(u64); | |
219 | break; | |
220 | default: | |
221 | break; | |
222 | } | |
223 | for (k = 0; k < num_cnt; k++) | |
224 | *(data + i++) = dpni_stats.raw.counter[k]; | |
225 | } | |
85047abd IR |
226 | |
227 | /* Print per-cpu extra stats */ | |
228 | for_each_online_cpu(k) { | |
229 | extras = per_cpu_ptr(priv->percpu_extras, k); | |
230 | for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++) | |
231 | *((__u64 *)data + i + j) += *((__u64 *)extras + j); | |
232 | } | |
233 | i += j; | |
234 | ||
235 | for (j = 0; j < priv->num_channels; j++) { | |
236 | ch_stats = &priv->channel[j]->stats; | |
237 | cdan += ch_stats->cdan; | |
238 | portal_busy += ch_stats->dequeue_portal_busy; | |
239 | pull_err += ch_stats->pull_err; | |
240 | } | |
241 | ||
242 | *(data + i++) = portal_busy; | |
243 | *(data + i++) = pull_err; | |
244 | *(data + i++) = cdan; | |
34196740 IR |
245 | } |
246 | ||
247 | static int dpaa2_eth_get_rxnfc(struct net_device *net_dev, | |
248 | struct ethtool_rxnfc *rxnfc, u32 *rule_locs) | |
249 | { | |
250 | struct dpaa2_eth_priv *priv = netdev_priv(net_dev); | |
251 | ||
252 | switch (rxnfc->cmd) { | |
253 | case ETHTOOL_GRXFH: | |
254 | /* we purposely ignore cmd->flow_type for now, because the | |
255 | * classifier only supports a single set of fields for all | |
256 | * protocols | |
257 | */ | |
258 | rxnfc->data = priv->rx_hash_fields; | |
259 | break; | |
260 | case ETHTOOL_GRXRINGS: | |
261 | rxnfc->data = dpaa2_eth_queue_count(priv); | |
262 | break; | |
263 | default: | |
264 | return -EOPNOTSUPP; | |
265 | } | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
270 | const struct ethtool_ops dpaa2_ethtool_ops = { | |
271 | .get_drvinfo = dpaa2_eth_get_drvinfo, | |
272 | .get_link = ethtool_op_get_link, | |
273 | .get_link_ksettings = dpaa2_eth_get_link_ksettings, | |
274 | .set_link_ksettings = dpaa2_eth_set_link_ksettings, | |
275 | .get_sset_count = dpaa2_eth_get_sset_count, | |
276 | .get_ethtool_stats = dpaa2_eth_get_ethtool_stats, | |
277 | .get_strings = dpaa2_eth_get_strings, | |
278 | .get_rxnfc = dpaa2_eth_get_rxnfc, | |
279 | }; |