1 // SPDX-License-Identifier: GPL-2.0
2 /* Marvell Octeon EP (EndPoint) Ethernet Driver
3 *
4 * Copyright (C) 2020 Marvell.
5 *
6 */
7
8 #include <linux/pci.h>
9 #include <linux/netdevice.h>
10 #include <linux/ethtool.h>
11
12 #include "octep_config.h"
13 #include "octep_main.h"
14 #include "octep_ctrl_net.h"
15
16 static const char octep_gstrings_global_stats[][ETH_GSTRING_LEN] = {
17 "rx_packets",
18 "tx_packets",
19 "rx_bytes",
20 "tx_bytes",
21 "rx_alloc_errors",
22 "tx_busy_errors",
23 "rx_dropped",
24 "tx_dropped",
25 "tx_hw_pkts",
26 "tx_hw_octs",
27 "tx_hw_bcast",
28 "tx_hw_mcast",
29 "tx_hw_underflow",
30 "tx_hw_control",
31 "tx_less_than_64",
32 "tx_equal_64",
33 "tx_equal_65_to_127",
34 "tx_equal_128_to_255",
35 "tx_equal_256_to_511",
36 "tx_equal_512_to_1023",
37 "tx_equal_1024_to_1518",
38 "tx_greater_than_1518",
39 "rx_hw_pkts",
40 "rx_hw_bytes",
41 "rx_hw_bcast",
42 "rx_hw_mcast",
43 "rx_pause_pkts",
44 "rx_pause_bytes",
45 "rx_dropped_pkts_fifo_full",
46 "rx_dropped_bytes_fifo_full",
47 "rx_err_pkts",
48 };
49
50 #define OCTEP_GLOBAL_STATS_CNT (sizeof(octep_gstrings_global_stats) / ETH_GSTRING_LEN)
51
52 static const char octep_gstrings_tx_q_stats[][ETH_GSTRING_LEN] = {
53 "tx_packets_posted[Q-%u]",
54 "tx_packets_completed[Q-%u]",
55 "tx_bytes[Q-%u]",
56 "tx_busy[Q-%u]",
57 };
58
59 #define OCTEP_TX_Q_STATS_CNT (sizeof(octep_gstrings_tx_q_stats) / ETH_GSTRING_LEN)
60
61 static const char octep_gstrings_rx_q_stats[][ETH_GSTRING_LEN] = {
62 "rx_packets[Q-%u]",
63 "rx_bytes[Q-%u]",
64 "rx_alloc_errors[Q-%u]",
65 };
66
67 #define OCTEP_RX_Q_STATS_CNT (sizeof(octep_gstrings_rx_q_stats) / ETH_GSTRING_LEN)
68
octep_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * info)69 static void octep_get_drvinfo(struct net_device *netdev,
70 struct ethtool_drvinfo *info)
71 {
72 struct octep_device *oct = netdev_priv(netdev);
73
74 strscpy(info->driver, OCTEP_DRV_NAME, sizeof(info->driver));
75 strscpy(info->bus_info, pci_name(oct->pdev), sizeof(info->bus_info));
76 }
77
octep_get_strings(struct net_device * netdev,u32 stringset,u8 * data)78 static void octep_get_strings(struct net_device *netdev,
79 u32 stringset, u8 *data)
80 {
81 struct octep_device *oct = netdev_priv(netdev);
82 u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
83 char *strings = (char *)data;
84 int i, j;
85
86 switch (stringset) {
87 case ETH_SS_STATS:
88 for (i = 0; i < OCTEP_GLOBAL_STATS_CNT; i++) {
89 snprintf(strings, ETH_GSTRING_LEN,
90 octep_gstrings_global_stats[i]);
91 strings += ETH_GSTRING_LEN;
92 }
93
94 for (i = 0; i < num_queues; i++) {
95 for (j = 0; j < OCTEP_TX_Q_STATS_CNT; j++) {
96 snprintf(strings, ETH_GSTRING_LEN,
97 octep_gstrings_tx_q_stats[j], i);
98 strings += ETH_GSTRING_LEN;
99 }
100 }
101
102 for (i = 0; i < num_queues; i++) {
103 for (j = 0; j < OCTEP_RX_Q_STATS_CNT; j++) {
104 snprintf(strings, ETH_GSTRING_LEN,
105 octep_gstrings_rx_q_stats[j], i);
106 strings += ETH_GSTRING_LEN;
107 }
108 }
109 break;
110 default:
111 break;
112 }
113 }
114
octep_get_sset_count(struct net_device * netdev,int sset)115 static int octep_get_sset_count(struct net_device *netdev, int sset)
116 {
117 struct octep_device *oct = netdev_priv(netdev);
118 u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
119
120 switch (sset) {
121 case ETH_SS_STATS:
122 return OCTEP_GLOBAL_STATS_CNT + (num_queues *
123 (OCTEP_TX_Q_STATS_CNT + OCTEP_RX_Q_STATS_CNT));
124 break;
125 default:
126 return -EOPNOTSUPP;
127 }
128 }
129
130 static void
octep_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)131 octep_get_ethtool_stats(struct net_device *netdev,
132 struct ethtool_stats *stats, u64 *data)
133 {
134 struct octep_device *oct = netdev_priv(netdev);
135 struct octep_iface_tx_stats *iface_tx_stats;
136 struct octep_iface_rx_stats *iface_rx_stats;
137 u64 rx_packets, rx_bytes;
138 u64 tx_packets, tx_bytes;
139 u64 rx_alloc_errors, tx_busy_errors;
140 int q, i;
141
142 rx_packets = 0;
143 rx_bytes = 0;
144 tx_packets = 0;
145 tx_bytes = 0;
146 rx_alloc_errors = 0;
147 tx_busy_errors = 0;
148 tx_packets = 0;
149 tx_bytes = 0;
150 rx_packets = 0;
151 rx_bytes = 0;
152
153 octep_get_if_stats(oct);
154 iface_tx_stats = &oct->iface_tx_stats;
155 iface_rx_stats = &oct->iface_rx_stats;
156
157 for (q = 0; q < oct->num_oqs; q++) {
158 struct octep_iq *iq = oct->iq[q];
159 struct octep_oq *oq = oct->oq[q];
160
161 tx_packets += iq->stats.instr_completed;
162 tx_bytes += iq->stats.bytes_sent;
163 tx_busy_errors += iq->stats.tx_busy;
164
165 rx_packets += oq->stats.packets;
166 rx_bytes += oq->stats.bytes;
167 rx_alloc_errors += oq->stats.alloc_failures;
168 }
169 i = 0;
170 data[i++] = rx_packets;
171 data[i++] = tx_packets;
172 data[i++] = rx_bytes;
173 data[i++] = tx_bytes;
174 data[i++] = rx_alloc_errors;
175 data[i++] = tx_busy_errors;
176 data[i++] = iface_rx_stats->dropped_pkts_fifo_full +
177 iface_rx_stats->err_pkts;
178 data[i++] = iface_tx_stats->xscol +
179 iface_tx_stats->xsdef;
180 data[i++] = iface_tx_stats->pkts;
181 data[i++] = iface_tx_stats->octs;
182 data[i++] = iface_tx_stats->bcst;
183 data[i++] = iface_tx_stats->mcst;
184 data[i++] = iface_tx_stats->undflw;
185 data[i++] = iface_tx_stats->ctl;
186 data[i++] = iface_tx_stats->hist_lt64;
187 data[i++] = iface_tx_stats->hist_eq64;
188 data[i++] = iface_tx_stats->hist_65to127;
189 data[i++] = iface_tx_stats->hist_128to255;
190 data[i++] = iface_tx_stats->hist_256to511;
191 data[i++] = iface_tx_stats->hist_512to1023;
192 data[i++] = iface_tx_stats->hist_1024to1518;
193 data[i++] = iface_tx_stats->hist_gt1518;
194 data[i++] = iface_rx_stats->pkts;
195 data[i++] = iface_rx_stats->octets;
196 data[i++] = iface_rx_stats->mcast_pkts;
197 data[i++] = iface_rx_stats->bcast_pkts;
198 data[i++] = iface_rx_stats->pause_pkts;
199 data[i++] = iface_rx_stats->pause_octets;
200 data[i++] = iface_rx_stats->dropped_pkts_fifo_full;
201 data[i++] = iface_rx_stats->dropped_octets_fifo_full;
202 data[i++] = iface_rx_stats->err_pkts;
203
204 /* Per Tx Queue stats */
205 for (q = 0; q < oct->num_iqs; q++) {
206 struct octep_iq *iq = oct->iq[q];
207
208 data[i++] = iq->stats.instr_posted;
209 data[i++] = iq->stats.instr_completed;
210 data[i++] = iq->stats.bytes_sent;
211 data[i++] = iq->stats.tx_busy;
212 }
213
214 /* Per Rx Queue stats */
215 for (q = 0; q < oct->num_oqs; q++) {
216 struct octep_oq *oq = oct->oq[q];
217
218 data[i++] = oq->stats.packets;
219 data[i++] = oq->stats.bytes;
220 data[i++] = oq->stats.alloc_failures;
221 }
222 }
223
224 #define OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(octep_speeds, ksettings, name) \
225 { \
226 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_T)) \
227 ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseT_Full); \
228 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_R)) \
229 ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseR_FEC); \
230 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_CR)) \
231 ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseCR_Full); \
232 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_KR)) \
233 ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseKR_Full); \
234 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_LR)) \
235 ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseLR_Full); \
236 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_SR)) \
237 ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseSR_Full); \
238 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_CR)) \
239 ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseCR_Full); \
240 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_KR)) \
241 ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseKR_Full); \
242 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_SR)) \
243 ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseSR_Full); \
244 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_CR4)) \
245 ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseCR4_Full); \
246 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_KR4)) \
247 ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseKR4_Full); \
248 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_LR4)) \
249 ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseLR4_Full); \
250 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_SR4)) \
251 ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseSR4_Full); \
252 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_CR2)) \
253 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR2_Full); \
254 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_KR2)) \
255 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR2_Full); \
256 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_SR2)) \
257 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR2_Full); \
258 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_CR)) \
259 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR_Full); \
260 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_KR)) \
261 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR_Full); \
262 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_LR)) \
263 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseLR_ER_FR_Full); \
264 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_SR)) \
265 ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR_Full); \
266 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_CR4)) \
267 ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseCR4_Full); \
268 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_KR4)) \
269 ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseKR4_Full); \
270 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_LR4)) \
271 ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseLR4_ER4_Full); \
272 if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_SR4)) \
273 ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseSR4_Full); \
274 }
275
octep_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)276 static int octep_get_link_ksettings(struct net_device *netdev,
277 struct ethtool_link_ksettings *cmd)
278 {
279 struct octep_device *oct = netdev_priv(netdev);
280 struct octep_iface_link_info *link_info;
281 u32 advertised_modes, supported_modes;
282
283 ethtool_link_ksettings_zero_link_mode(cmd, supported);
284 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
285
286 octep_get_link_info(oct);
287
288 advertised_modes = oct->link_info.advertised_modes;
289 supported_modes = oct->link_info.supported_modes;
290 link_info = &oct->link_info;
291
292 OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(supported_modes, cmd, supported);
293 OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(advertised_modes, cmd, advertising);
294
295 if (link_info->autoneg) {
296 if (link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_SUPPORTED)
297 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
298 if (link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_ADVERTISED) {
299 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
300 cmd->base.autoneg = AUTONEG_ENABLE;
301 } else {
302 cmd->base.autoneg = AUTONEG_DISABLE;
303 }
304 } else {
305 cmd->base.autoneg = AUTONEG_DISABLE;
306 }
307
308 if (link_info->pause) {
309 if (link_info->pause & OCTEP_LINK_MODE_PAUSE_SUPPORTED)
310 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
311 if (link_info->pause & OCTEP_LINK_MODE_PAUSE_ADVERTISED)
312 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
313 }
314
315 cmd->base.port = PORT_FIBRE;
316 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
317 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
318
319 if (netif_carrier_ok(netdev)) {
320 cmd->base.speed = link_info->speed;
321 cmd->base.duplex = DUPLEX_FULL;
322 } else {
323 cmd->base.speed = SPEED_UNKNOWN;
324 cmd->base.duplex = DUPLEX_UNKNOWN;
325 }
326 return 0;
327 }
328
octep_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * cmd)329 static int octep_set_link_ksettings(struct net_device *netdev,
330 const struct ethtool_link_ksettings *cmd)
331 {
332 struct octep_device *oct = netdev_priv(netdev);
333 struct octep_iface_link_info link_info_new;
334 struct octep_iface_link_info *link_info;
335 u64 advertised = 0;
336 u8 autoneg = 0;
337 int err;
338
339 link_info = &oct->link_info;
340 memcpy(&link_info_new, link_info, sizeof(struct octep_iface_link_info));
341
342 /* Only Full duplex is supported;
343 * Assume full duplex when duplex is unknown.
344 */
345 if (cmd->base.duplex != DUPLEX_FULL &&
346 cmd->base.duplex != DUPLEX_UNKNOWN)
347 return -EOPNOTSUPP;
348
349 if (cmd->base.autoneg == AUTONEG_ENABLE) {
350 if (!(link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_SUPPORTED))
351 return -EOPNOTSUPP;
352 autoneg = 1;
353 }
354
355 if (!bitmap_subset(cmd->link_modes.advertising,
356 cmd->link_modes.supported,
357 __ETHTOOL_LINK_MODE_MASK_NBITS))
358 return -EINVAL;
359
360 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
361 10000baseT_Full))
362 advertised |= BIT(OCTEP_LINK_MODE_10GBASE_T);
363 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
364 10000baseR_FEC))
365 advertised |= BIT(OCTEP_LINK_MODE_10GBASE_R);
366 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
367 10000baseCR_Full))
368 advertised |= BIT(OCTEP_LINK_MODE_10GBASE_CR);
369 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
370 10000baseKR_Full))
371 advertised |= BIT(OCTEP_LINK_MODE_10GBASE_KR);
372 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
373 10000baseLR_Full))
374 advertised |= BIT(OCTEP_LINK_MODE_10GBASE_LR);
375 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
376 10000baseSR_Full))
377 advertised |= BIT(OCTEP_LINK_MODE_10GBASE_SR);
378 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
379 25000baseCR_Full))
380 advertised |= BIT(OCTEP_LINK_MODE_25GBASE_CR);
381 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
382 25000baseKR_Full))
383 advertised |= BIT(OCTEP_LINK_MODE_25GBASE_KR);
384 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
385 25000baseSR_Full))
386 advertised |= BIT(OCTEP_LINK_MODE_25GBASE_SR);
387 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
388 40000baseCR4_Full))
389 advertised |= BIT(OCTEP_LINK_MODE_40GBASE_CR4);
390 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
391 40000baseKR4_Full))
392 advertised |= BIT(OCTEP_LINK_MODE_40GBASE_KR4);
393 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
394 40000baseLR4_Full))
395 advertised |= BIT(OCTEP_LINK_MODE_40GBASE_LR4);
396 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
397 40000baseSR4_Full))
398 advertised |= BIT(OCTEP_LINK_MODE_40GBASE_SR4);
399 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
400 50000baseCR2_Full))
401 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_CR2);
402 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
403 50000baseKR2_Full))
404 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_KR2);
405 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
406 50000baseSR2_Full))
407 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_SR2);
408 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
409 50000baseCR_Full))
410 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_CR);
411 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
412 50000baseKR_Full))
413 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_KR);
414 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
415 50000baseLR_ER_FR_Full))
416 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_LR);
417 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
418 50000baseSR_Full))
419 advertised |= BIT(OCTEP_LINK_MODE_50GBASE_SR);
420 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
421 100000baseCR4_Full))
422 advertised |= BIT(OCTEP_LINK_MODE_100GBASE_CR4);
423 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
424 100000baseKR4_Full))
425 advertised |= BIT(OCTEP_LINK_MODE_100GBASE_KR4);
426 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
427 100000baseLR4_ER4_Full))
428 advertised |= BIT(OCTEP_LINK_MODE_100GBASE_LR4);
429 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
430 100000baseSR4_Full))
431 advertised |= BIT(OCTEP_LINK_MODE_100GBASE_SR4);
432
433 if (advertised == link_info->advertised_modes &&
434 cmd->base.speed == link_info->speed &&
435 cmd->base.autoneg == link_info->autoneg)
436 return 0;
437
438 link_info_new.advertised_modes = advertised;
439 link_info_new.speed = cmd->base.speed;
440 link_info_new.autoneg = autoneg;
441
442 err = octep_set_link_info(oct, &link_info_new);
443 if (err)
444 return err;
445
446 memcpy(link_info, &link_info_new, sizeof(struct octep_iface_link_info));
447 return 0;
448 }
449
450 static const struct ethtool_ops octep_ethtool_ops = {
451 .get_drvinfo = octep_get_drvinfo,
452 .get_link = ethtool_op_get_link,
453 .get_strings = octep_get_strings,
454 .get_sset_count = octep_get_sset_count,
455 .get_ethtool_stats = octep_get_ethtool_stats,
456 .get_link_ksettings = octep_get_link_ksettings,
457 .set_link_ksettings = octep_set_link_ksettings,
458 };
459
octep_set_ethtool_ops(struct net_device * netdev)460 void octep_set_ethtool_ops(struct net_device *netdev)
461 {
462 netdev->ethtool_ops = &octep_ethtool_ops;
463 }
464