1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /* Copyright 2014-2016 Freescale Semiconductor Inc.
3 * Copyright 2016-2022 NXP
4 */
5
6 #include <linux/net_tstamp.h>
7 #include <linux/nospec.h>
8
9 #include "dpni.h" /* DPNI_LINK_OPT_* */
10 #include "dpaa2-eth.h"
11
12 /* To be kept in sync with DPNI statistics */
13 static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
14 "[hw] rx frames",
15 "[hw] rx bytes",
16 "[hw] rx mcast frames",
17 "[hw] rx mcast bytes",
18 "[hw] rx bcast frames",
19 "[hw] rx bcast bytes",
20 "[hw] tx frames",
21 "[hw] tx bytes",
22 "[hw] tx mcast frames",
23 "[hw] tx mcast bytes",
24 "[hw] tx bcast frames",
25 "[hw] tx bcast bytes",
26 "[hw] rx filtered frames",
27 "[hw] rx discarded frames",
28 "[hw] rx nobuffer discards",
29 "[hw] tx discarded frames",
30 "[hw] tx confirmed frames",
31 "[hw] tx dequeued bytes",
32 "[hw] tx dequeued frames",
33 "[hw] tx rejected bytes",
34 "[hw] tx rejected frames",
35 "[hw] tx pending frames",
36 };
37
38 #define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats)
39
40 static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
41 /* per-cpu stats */
42 "[drv] tx conf frames",
43 "[drv] tx conf bytes",
44 "[drv] tx sg frames",
45 "[drv] tx sg bytes",
46 "[drv] tx tso frames",
47 "[drv] tx tso bytes",
48 "[drv] rx sg frames",
49 "[drv] rx sg bytes",
50 "[drv] tx converted sg frames",
51 "[drv] tx converted sg bytes",
52 "[drv] enqueue portal busy",
53 /* Channel stats */
54 "[drv] dequeue portal busy",
55 "[drv] channel pull errors",
56 "[drv] cdan",
57 "[drv] xdp drop",
58 "[drv] xdp tx",
59 "[drv] xdp tx errors",
60 "[drv] xdp redirect",
61 /* FQ stats */
62 "[qbman] rx pending frames",
63 "[qbman] rx pending bytes",
64 "[qbman] tx conf pending frames",
65 "[qbman] tx conf pending bytes",
66 "[qbman] buffer count",
67 };
68
69 #define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
70
dpaa2_eth_get_drvinfo(struct net_device * net_dev,struct ethtool_drvinfo * drvinfo)71 static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
72 struct ethtool_drvinfo *drvinfo)
73 {
74 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
75
76 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
77
78 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
79 "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
80
81 strscpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
82 sizeof(drvinfo->bus_info));
83 }
84
dpaa2_eth_nway_reset(struct net_device * net_dev)85 static int dpaa2_eth_nway_reset(struct net_device *net_dev)
86 {
87 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
88 int err = -EOPNOTSUPP;
89
90 mutex_lock(&priv->mac_lock);
91
92 if (dpaa2_eth_is_type_phy(priv))
93 err = phylink_ethtool_nway_reset(priv->mac->phylink);
94
95 mutex_unlock(&priv->mac_lock);
96
97 return err;
98 }
99
100 static int
dpaa2_eth_get_link_ksettings(struct net_device * net_dev,struct ethtool_link_ksettings * link_settings)101 dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
102 struct ethtool_link_ksettings *link_settings)
103 {
104 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
105 int err;
106
107 mutex_lock(&priv->mac_lock);
108
109 if (dpaa2_eth_is_type_phy(priv)) {
110 err = phylink_ethtool_ksettings_get(priv->mac->phylink,
111 link_settings);
112 mutex_unlock(&priv->mac_lock);
113 return err;
114 }
115
116 mutex_unlock(&priv->mac_lock);
117
118 link_settings->base.autoneg = AUTONEG_DISABLE;
119 if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX))
120 link_settings->base.duplex = DUPLEX_FULL;
121 link_settings->base.speed = priv->link_state.rate;
122
123 return 0;
124 }
125
126 static int
dpaa2_eth_set_link_ksettings(struct net_device * net_dev,const struct ethtool_link_ksettings * link_settings)127 dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
128 const struct ethtool_link_ksettings *link_settings)
129 {
130 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
131 int err = -EOPNOTSUPP;
132
133 mutex_lock(&priv->mac_lock);
134
135 if (dpaa2_eth_is_type_phy(priv))
136 err = phylink_ethtool_ksettings_set(priv->mac->phylink,
137 link_settings);
138
139 mutex_unlock(&priv->mac_lock);
140
141 return err;
142 }
143
dpaa2_eth_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)144 static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
145 struct ethtool_pauseparam *pause)
146 {
147 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
148 u64 link_options = priv->link_state.options;
149
150 mutex_lock(&priv->mac_lock);
151
152 if (dpaa2_eth_is_type_phy(priv)) {
153 phylink_ethtool_get_pauseparam(priv->mac->phylink, pause);
154 mutex_unlock(&priv->mac_lock);
155 return;
156 }
157
158 mutex_unlock(&priv->mac_lock);
159
160 pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
161 pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
162 pause->autoneg = AUTONEG_DISABLE;
163 }
164
dpaa2_eth_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)165 static int dpaa2_eth_set_pauseparam(struct net_device *net_dev,
166 struct ethtool_pauseparam *pause)
167 {
168 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
169 struct dpni_link_cfg cfg = {0};
170 int err;
171
172 if (!dpaa2_eth_has_pause_support(priv)) {
173 netdev_info(net_dev, "No pause frame support for DPNI version < %d.%d\n",
174 DPNI_PAUSE_VER_MAJOR, DPNI_PAUSE_VER_MINOR);
175 return -EOPNOTSUPP;
176 }
177
178 mutex_lock(&priv->mac_lock);
179
180 if (dpaa2_eth_is_type_phy(priv)) {
181 err = phylink_ethtool_set_pauseparam(priv->mac->phylink,
182 pause);
183 mutex_unlock(&priv->mac_lock);
184 return err;
185 }
186
187 mutex_unlock(&priv->mac_lock);
188
189 if (pause->autoneg)
190 return -EOPNOTSUPP;
191
192 cfg.rate = priv->link_state.rate;
193 cfg.options = priv->link_state.options;
194 if (pause->rx_pause)
195 cfg.options |= DPNI_LINK_OPT_PAUSE;
196 else
197 cfg.options &= ~DPNI_LINK_OPT_PAUSE;
198 if (!!pause->rx_pause ^ !!pause->tx_pause)
199 cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE;
200 else
201 cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE;
202
203 if (cfg.options == priv->link_state.options)
204 return 0;
205
206 err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
207 if (err) {
208 netdev_err(net_dev, "dpni_set_link_state failed\n");
209 return err;
210 }
211
212 priv->link_state.options = cfg.options;
213
214 return 0;
215 }
216
dpaa2_eth_get_strings(struct net_device * netdev,u32 stringset,u8 * data)217 static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
218 u8 *data)
219 {
220 u8 *p = data;
221 int i;
222
223 switch (stringset) {
224 case ETH_SS_STATS:
225 for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
226 strscpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
227 p += ETH_GSTRING_LEN;
228 }
229 for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) {
230 strscpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
231 p += ETH_GSTRING_LEN;
232 }
233 dpaa2_mac_get_strings(p);
234 break;
235 }
236 }
237
dpaa2_eth_get_sset_count(struct net_device * net_dev,int sset)238 static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
239 {
240 switch (sset) {
241 case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
242 return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS +
243 dpaa2_mac_get_sset_count();
244 default:
245 return -EOPNOTSUPP;
246 }
247 }
248
249 /** Fill in hardware counters, as returned by MC.
250 */
dpaa2_eth_get_ethtool_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)251 static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
252 struct ethtool_stats *stats,
253 u64 *data)
254 {
255 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
256 union dpni_statistics dpni_stats;
257 int dpni_stats_page_size[DPNI_STATISTICS_CNT] = {
258 sizeof(dpni_stats.page_0),
259 sizeof(dpni_stats.page_1),
260 sizeof(dpni_stats.page_2),
261 sizeof(dpni_stats.page_3),
262 sizeof(dpni_stats.page_4),
263 sizeof(dpni_stats.page_5),
264 sizeof(dpni_stats.page_6),
265 };
266 u32 fcnt_rx_total = 0, fcnt_tx_total = 0;
267 u32 bcnt_rx_total = 0, bcnt_tx_total = 0;
268 struct dpaa2_eth_ch_stats *ch_stats;
269 struct dpaa2_eth_drv_stats *extras;
270 u32 buf_cnt, buf_cnt_total = 0;
271 int j, k, err, num_cnt, i = 0;
272 u32 fcnt, bcnt;
273
274 memset(data, 0,
275 sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
276
277 /* Print standard counters, from DPNI statistics */
278 for (j = 0; j <= 6; j++) {
279 /* We're not interested in pages 4 & 5 for now */
280 if (j == 4 || j == 5)
281 continue;
282 err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token,
283 j, &dpni_stats);
284 if (err == -EINVAL)
285 /* Older firmware versions don't support all pages */
286 memset(&dpni_stats, 0, sizeof(dpni_stats));
287 else if (err)
288 netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j);
289
290 num_cnt = dpni_stats_page_size[j] / sizeof(u64);
291 for (k = 0; k < num_cnt; k++)
292 *(data + i++) = dpni_stats.raw.counter[k];
293 }
294
295 /* Print per-cpu extra stats */
296 for_each_online_cpu(k) {
297 extras = per_cpu_ptr(priv->percpu_extras, k);
298 for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
299 *((__u64 *)data + i + j) += *((__u64 *)extras + j);
300 }
301 i += j;
302
303 /* Per-channel stats */
304 for (k = 0; k < priv->num_channels; k++) {
305 ch_stats = &priv->channel[k]->stats;
306 for (j = 0; j < DPAA2_ETH_CH_STATS; j++)
307 *((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
308 }
309 i += j;
310
311 for (j = 0; j < priv->num_fqs; j++) {
312 /* Print FQ instantaneous counts */
313 err = dpaa2_io_query_fq_count(NULL, priv->fq[j].fqid,
314 &fcnt, &bcnt);
315 if (err) {
316 netdev_warn(net_dev, "FQ query error %d", err);
317 return;
318 }
319
320 if (priv->fq[j].type == DPAA2_TX_CONF_FQ) {
321 fcnt_tx_total += fcnt;
322 bcnt_tx_total += bcnt;
323 } else {
324 fcnt_rx_total += fcnt;
325 bcnt_rx_total += bcnt;
326 }
327 }
328
329 *(data + i++) = fcnt_rx_total;
330 *(data + i++) = bcnt_rx_total;
331 *(data + i++) = fcnt_tx_total;
332 *(data + i++) = bcnt_tx_total;
333
334 for (j = 0; j < priv->num_bps; j++) {
335 err = dpaa2_io_query_bp_count(NULL, priv->bp[j]->bpid, &buf_cnt);
336 if (err) {
337 netdev_warn(net_dev, "Buffer count query error %d\n", err);
338 return;
339 }
340 buf_cnt_total += buf_cnt;
341 }
342 *(data + i++) = buf_cnt_total;
343
344 mutex_lock(&priv->mac_lock);
345
346 if (dpaa2_eth_has_mac(priv))
347 dpaa2_mac_get_ethtool_stats(priv->mac, data + i);
348
349 mutex_unlock(&priv->mac_lock);
350 }
351
dpaa2_eth_prep_eth_rule(struct ethhdr * eth_value,struct ethhdr * eth_mask,void * key,void * mask,u64 * fields)352 static int dpaa2_eth_prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask,
353 void *key, void *mask, u64 *fields)
354 {
355 int off;
356
357 if (eth_mask->h_proto) {
358 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
359 *(__be16 *)(key + off) = eth_value->h_proto;
360 *(__be16 *)(mask + off) = eth_mask->h_proto;
361 *fields |= DPAA2_ETH_DIST_ETHTYPE;
362 }
363
364 if (!is_zero_ether_addr(eth_mask->h_source)) {
365 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_SA);
366 ether_addr_copy(key + off, eth_value->h_source);
367 ether_addr_copy(mask + off, eth_mask->h_source);
368 *fields |= DPAA2_ETH_DIST_ETHSRC;
369 }
370
371 if (!is_zero_ether_addr(eth_mask->h_dest)) {
372 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
373 ether_addr_copy(key + off, eth_value->h_dest);
374 ether_addr_copy(mask + off, eth_mask->h_dest);
375 *fields |= DPAA2_ETH_DIST_ETHDST;
376 }
377
378 return 0;
379 }
380
dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec * uip_value,struct ethtool_usrip4_spec * uip_mask,void * key,void * mask,u64 * fields)381 static int dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec *uip_value,
382 struct ethtool_usrip4_spec *uip_mask,
383 void *key, void *mask, u64 *fields)
384 {
385 int off;
386 u32 tmp_value, tmp_mask;
387
388 if (uip_mask->tos || uip_mask->ip_ver)
389 return -EOPNOTSUPP;
390
391 if (uip_mask->ip4src) {
392 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC);
393 *(__be32 *)(key + off) = uip_value->ip4src;
394 *(__be32 *)(mask + off) = uip_mask->ip4src;
395 *fields |= DPAA2_ETH_DIST_IPSRC;
396 }
397
398 if (uip_mask->ip4dst) {
399 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST);
400 *(__be32 *)(key + off) = uip_value->ip4dst;
401 *(__be32 *)(mask + off) = uip_mask->ip4dst;
402 *fields |= DPAA2_ETH_DIST_IPDST;
403 }
404
405 if (uip_mask->proto) {
406 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO);
407 *(u8 *)(key + off) = uip_value->proto;
408 *(u8 *)(mask + off) = uip_mask->proto;
409 *fields |= DPAA2_ETH_DIST_IPPROTO;
410 }
411
412 if (uip_mask->l4_4_bytes) {
413 tmp_value = be32_to_cpu(uip_value->l4_4_bytes);
414 tmp_mask = be32_to_cpu(uip_mask->l4_4_bytes);
415
416 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
417 *(__be16 *)(key + off) = htons(tmp_value >> 16);
418 *(__be16 *)(mask + off) = htons(tmp_mask >> 16);
419 *fields |= DPAA2_ETH_DIST_L4SRC;
420
421 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
422 *(__be16 *)(key + off) = htons(tmp_value & 0xFFFF);
423 *(__be16 *)(mask + off) = htons(tmp_mask & 0xFFFF);
424 *fields |= DPAA2_ETH_DIST_L4DST;
425 }
426
427 /* Only apply the rule for IPv4 frames */
428 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
429 *(__be16 *)(key + off) = htons(ETH_P_IP);
430 *(__be16 *)(mask + off) = htons(0xFFFF);
431 *fields |= DPAA2_ETH_DIST_ETHTYPE;
432
433 return 0;
434 }
435
dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec * l4_value,struct ethtool_tcpip4_spec * l4_mask,void * key,void * mask,u8 l4_proto,u64 * fields)436 static int dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec *l4_value,
437 struct ethtool_tcpip4_spec *l4_mask,
438 void *key, void *mask, u8 l4_proto, u64 *fields)
439 {
440 int off;
441
442 if (l4_mask->tos)
443 return -EOPNOTSUPP;
444
445 if (l4_mask->ip4src) {
446 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC);
447 *(__be32 *)(key + off) = l4_value->ip4src;
448 *(__be32 *)(mask + off) = l4_mask->ip4src;
449 *fields |= DPAA2_ETH_DIST_IPSRC;
450 }
451
452 if (l4_mask->ip4dst) {
453 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST);
454 *(__be32 *)(key + off) = l4_value->ip4dst;
455 *(__be32 *)(mask + off) = l4_mask->ip4dst;
456 *fields |= DPAA2_ETH_DIST_IPDST;
457 }
458
459 if (l4_mask->psrc) {
460 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
461 *(__be16 *)(key + off) = l4_value->psrc;
462 *(__be16 *)(mask + off) = l4_mask->psrc;
463 *fields |= DPAA2_ETH_DIST_L4SRC;
464 }
465
466 if (l4_mask->pdst) {
467 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
468 *(__be16 *)(key + off) = l4_value->pdst;
469 *(__be16 *)(mask + off) = l4_mask->pdst;
470 *fields |= DPAA2_ETH_DIST_L4DST;
471 }
472
473 /* Only apply the rule for IPv4 frames with the specified L4 proto */
474 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
475 *(__be16 *)(key + off) = htons(ETH_P_IP);
476 *(__be16 *)(mask + off) = htons(0xFFFF);
477 *fields |= DPAA2_ETH_DIST_ETHTYPE;
478
479 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO);
480 *(u8 *)(key + off) = l4_proto;
481 *(u8 *)(mask + off) = 0xFF;
482 *fields |= DPAA2_ETH_DIST_IPPROTO;
483
484 return 0;
485 }
486
dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext * ext_value,struct ethtool_flow_ext * ext_mask,void * key,void * mask,u64 * fields)487 static int dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext *ext_value,
488 struct ethtool_flow_ext *ext_mask,
489 void *key, void *mask, u64 *fields)
490 {
491 int off;
492
493 if (ext_mask->vlan_etype)
494 return -EOPNOTSUPP;
495
496 if (ext_mask->vlan_tci) {
497 off = dpaa2_eth_cls_fld_off(NET_PROT_VLAN, NH_FLD_VLAN_TCI);
498 *(__be16 *)(key + off) = ext_value->vlan_tci;
499 *(__be16 *)(mask + off) = ext_mask->vlan_tci;
500 *fields |= DPAA2_ETH_DIST_VLAN;
501 }
502
503 return 0;
504 }
505
dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext * ext_value,struct ethtool_flow_ext * ext_mask,void * key,void * mask,u64 * fields)506 static int dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext *ext_value,
507 struct ethtool_flow_ext *ext_mask,
508 void *key, void *mask, u64 *fields)
509 {
510 int off;
511
512 if (!is_zero_ether_addr(ext_mask->h_dest)) {
513 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
514 ether_addr_copy(key + off, ext_value->h_dest);
515 ether_addr_copy(mask + off, ext_mask->h_dest);
516 *fields |= DPAA2_ETH_DIST_ETHDST;
517 }
518
519 return 0;
520 }
521
dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec * fs,void * key,void * mask,u64 * fields)522 static int dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec *fs, void *key,
523 void *mask, u64 *fields)
524 {
525 int err;
526
527 switch (fs->flow_type & 0xFF) {
528 case ETHER_FLOW:
529 err = dpaa2_eth_prep_eth_rule(&fs->h_u.ether_spec, &fs->m_u.ether_spec,
530 key, mask, fields);
531 break;
532 case IP_USER_FLOW:
533 err = dpaa2_eth_prep_uip_rule(&fs->h_u.usr_ip4_spec,
534 &fs->m_u.usr_ip4_spec, key, mask, fields);
535 break;
536 case TCP_V4_FLOW:
537 err = dpaa2_eth_prep_l4_rule(&fs->h_u.tcp_ip4_spec, &fs->m_u.tcp_ip4_spec,
538 key, mask, IPPROTO_TCP, fields);
539 break;
540 case UDP_V4_FLOW:
541 err = dpaa2_eth_prep_l4_rule(&fs->h_u.udp_ip4_spec, &fs->m_u.udp_ip4_spec,
542 key, mask, IPPROTO_UDP, fields);
543 break;
544 case SCTP_V4_FLOW:
545 err = dpaa2_eth_prep_l4_rule(&fs->h_u.sctp_ip4_spec,
546 &fs->m_u.sctp_ip4_spec, key, mask,
547 IPPROTO_SCTP, fields);
548 break;
549 default:
550 return -EOPNOTSUPP;
551 }
552
553 if (err)
554 return err;
555
556 if (fs->flow_type & FLOW_EXT) {
557 err = dpaa2_eth_prep_ext_rule(&fs->h_ext, &fs->m_ext, key, mask, fields);
558 if (err)
559 return err;
560 }
561
562 if (fs->flow_type & FLOW_MAC_EXT) {
563 err = dpaa2_eth_prep_mac_ext_rule(&fs->h_ext, &fs->m_ext, key,
564 mask, fields);
565 if (err)
566 return err;
567 }
568
569 return 0;
570 }
571
dpaa2_eth_do_cls_rule(struct net_device * net_dev,struct ethtool_rx_flow_spec * fs,bool add)572 static int dpaa2_eth_do_cls_rule(struct net_device *net_dev,
573 struct ethtool_rx_flow_spec *fs,
574 bool add)
575 {
576 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
577 struct device *dev = net_dev->dev.parent;
578 struct dpni_rule_cfg rule_cfg = { 0 };
579 struct dpni_fs_action_cfg fs_act = { 0 };
580 dma_addr_t key_iova;
581 u64 fields = 0;
582 void *key_buf;
583 int i, err;
584
585 if (fs->ring_cookie != RX_CLS_FLOW_DISC &&
586 fs->ring_cookie >= dpaa2_eth_queue_count(priv))
587 return -EINVAL;
588
589 rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL);
590
591 /* allocate twice the key size, for the actual key and for mask */
592 key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL);
593 if (!key_buf)
594 return -ENOMEM;
595
596 /* Fill the key and mask memory areas */
597 err = dpaa2_eth_prep_cls_rule(fs, key_buf, key_buf + rule_cfg.key_size, &fields);
598 if (err)
599 goto free_mem;
600
601 if (!dpaa2_eth_fs_mask_enabled(priv)) {
602 /* Masking allows us to configure a maximal key during init and
603 * use it for all flow steering rules. Without it, we include
604 * in the key only the fields actually used, so we need to
605 * extract the others from the final key buffer.
606 *
607 * Program the FS key if needed, or return error if previously
608 * set key can't be used for the current rule. User needs to
609 * delete existing rules in this case to allow for the new one.
610 */
611 if (!priv->rx_cls_fields) {
612 err = dpaa2_eth_set_cls(net_dev, fields);
613 if (err)
614 goto free_mem;
615
616 priv->rx_cls_fields = fields;
617 } else if (priv->rx_cls_fields != fields) {
618 netdev_err(net_dev, "No support for multiple FS keys, need to delete existing rules\n");
619 err = -EOPNOTSUPP;
620 goto free_mem;
621 }
622
623 dpaa2_eth_cls_trim_rule(key_buf, fields);
624 rule_cfg.key_size = dpaa2_eth_cls_key_size(fields);
625 }
626
627 key_iova = dma_map_single(dev, key_buf, rule_cfg.key_size * 2,
628 DMA_TO_DEVICE);
629 if (dma_mapping_error(dev, key_iova)) {
630 err = -ENOMEM;
631 goto free_mem;
632 }
633
634 rule_cfg.key_iova = key_iova;
635 if (dpaa2_eth_fs_mask_enabled(priv))
636 rule_cfg.mask_iova = key_iova + rule_cfg.key_size;
637
638 if (add) {
639 if (fs->ring_cookie == RX_CLS_FLOW_DISC)
640 fs_act.options |= DPNI_FS_OPT_DISCARD;
641 else
642 fs_act.flow_id = fs->ring_cookie;
643 }
644 for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
645 if (add)
646 err = dpni_add_fs_entry(priv->mc_io, 0, priv->mc_token,
647 i, fs->location, &rule_cfg,
648 &fs_act);
649 else
650 err = dpni_remove_fs_entry(priv->mc_io, 0,
651 priv->mc_token, i,
652 &rule_cfg);
653 if (err || priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
654 break;
655 }
656
657 dma_unmap_single(dev, key_iova, rule_cfg.key_size * 2, DMA_TO_DEVICE);
658
659 free_mem:
660 kfree(key_buf);
661
662 return err;
663 }
664
dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv * priv)665 static int dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv *priv)
666 {
667 int i, rules = 0;
668
669 for (i = 0; i < dpaa2_eth_fs_count(priv); i++)
670 if (priv->cls_rules[i].in_use)
671 rules++;
672
673 return rules;
674 }
675
dpaa2_eth_update_cls_rule(struct net_device * net_dev,struct ethtool_rx_flow_spec * new_fs,unsigned int location)676 static int dpaa2_eth_update_cls_rule(struct net_device *net_dev,
677 struct ethtool_rx_flow_spec *new_fs,
678 unsigned int location)
679 {
680 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
681 struct dpaa2_eth_cls_rule *rule;
682 int err = -EINVAL;
683
684 if (!priv->rx_cls_enabled)
685 return -EOPNOTSUPP;
686
687 if (location >= dpaa2_eth_fs_count(priv))
688 return -EINVAL;
689
690 rule = &priv->cls_rules[location];
691
692 /* If a rule is present at the specified location, delete it. */
693 if (rule->in_use) {
694 err = dpaa2_eth_do_cls_rule(net_dev, &rule->fs, false);
695 if (err)
696 return err;
697
698 rule->in_use = 0;
699
700 if (!dpaa2_eth_fs_mask_enabled(priv) &&
701 !dpaa2_eth_num_cls_rules(priv))
702 priv->rx_cls_fields = 0;
703 }
704
705 /* If no new entry to add, return here */
706 if (!new_fs)
707 return err;
708
709 err = dpaa2_eth_do_cls_rule(net_dev, new_fs, true);
710 if (err)
711 return err;
712
713 rule->in_use = 1;
714 rule->fs = *new_fs;
715
716 return 0;
717 }
718
dpaa2_eth_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * rxnfc,u32 * rule_locs)719 static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
720 struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
721 {
722 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
723 int max_rules = dpaa2_eth_fs_count(priv);
724 int i, j = 0;
725
726 switch (rxnfc->cmd) {
727 case ETHTOOL_GRXFH:
728 /* we purposely ignore cmd->flow_type for now, because the
729 * classifier only supports a single set of fields for all
730 * protocols
731 */
732 rxnfc->data = priv->rx_hash_fields;
733 break;
734 case ETHTOOL_GRXRINGS:
735 rxnfc->data = dpaa2_eth_queue_count(priv);
736 break;
737 case ETHTOOL_GRXCLSRLCNT:
738 rxnfc->rule_cnt = 0;
739 rxnfc->rule_cnt = dpaa2_eth_num_cls_rules(priv);
740 rxnfc->data = max_rules;
741 break;
742 case ETHTOOL_GRXCLSRULE:
743 if (rxnfc->fs.location >= max_rules)
744 return -EINVAL;
745 rxnfc->fs.location = array_index_nospec(rxnfc->fs.location,
746 max_rules);
747 if (!priv->cls_rules[rxnfc->fs.location].in_use)
748 return -EINVAL;
749 rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
750 break;
751 case ETHTOOL_GRXCLSRLALL:
752 for (i = 0; i < max_rules; i++) {
753 if (!priv->cls_rules[i].in_use)
754 continue;
755 if (j == rxnfc->rule_cnt)
756 return -EMSGSIZE;
757 rule_locs[j++] = i;
758 }
759 rxnfc->rule_cnt = j;
760 rxnfc->data = max_rules;
761 break;
762 default:
763 return -EOPNOTSUPP;
764 }
765
766 return 0;
767 }
768
dpaa2_eth_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * rxnfc)769 static int dpaa2_eth_set_rxnfc(struct net_device *net_dev,
770 struct ethtool_rxnfc *rxnfc)
771 {
772 int err = 0;
773
774 switch (rxnfc->cmd) {
775 case ETHTOOL_SRXFH:
776 if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data)
777 return -EOPNOTSUPP;
778 err = dpaa2_eth_set_hash(net_dev, rxnfc->data);
779 break;
780 case ETHTOOL_SRXCLSRLINS:
781 err = dpaa2_eth_update_cls_rule(net_dev, &rxnfc->fs, rxnfc->fs.location);
782 break;
783 case ETHTOOL_SRXCLSRLDEL:
784 err = dpaa2_eth_update_cls_rule(net_dev, NULL, rxnfc->fs.location);
785 break;
786 default:
787 err = -EOPNOTSUPP;
788 }
789
790 return err;
791 }
792
793 int dpaa2_phc_index = -1;
794 EXPORT_SYMBOL(dpaa2_phc_index);
795
dpaa2_eth_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)796 static int dpaa2_eth_get_ts_info(struct net_device *dev,
797 struct ethtool_ts_info *info)
798 {
799 if (!dpaa2_ptp)
800 return ethtool_op_get_ts_info(dev, info);
801
802 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
803 SOF_TIMESTAMPING_RX_HARDWARE |
804 SOF_TIMESTAMPING_RAW_HARDWARE;
805
806 info->phc_index = dpaa2_phc_index;
807
808 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
809 (1 << HWTSTAMP_TX_ON) |
810 (1 << HWTSTAMP_TX_ONESTEP_SYNC);
811
812 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
813 (1 << HWTSTAMP_FILTER_ALL);
814 return 0;
815 }
816
dpaa2_eth_get_tunable(struct net_device * net_dev,const struct ethtool_tunable * tuna,void * data)817 static int dpaa2_eth_get_tunable(struct net_device *net_dev,
818 const struct ethtool_tunable *tuna,
819 void *data)
820 {
821 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
822 int err = 0;
823
824 switch (tuna->id) {
825 case ETHTOOL_RX_COPYBREAK:
826 *(u32 *)data = priv->rx_copybreak;
827 break;
828 default:
829 err = -EOPNOTSUPP;
830 break;
831 }
832
833 return err;
834 }
835
dpaa2_eth_set_tunable(struct net_device * net_dev,const struct ethtool_tunable * tuna,const void * data)836 static int dpaa2_eth_set_tunable(struct net_device *net_dev,
837 const struct ethtool_tunable *tuna,
838 const void *data)
839 {
840 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
841 int err = 0;
842
843 switch (tuna->id) {
844 case ETHTOOL_RX_COPYBREAK:
845 priv->rx_copybreak = *(u32 *)data;
846 break;
847 default:
848 err = -EOPNOTSUPP;
849 break;
850 }
851
852 return err;
853 }
854
dpaa2_eth_get_coalesce(struct net_device * dev,struct ethtool_coalesce * ic,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)855 static int dpaa2_eth_get_coalesce(struct net_device *dev,
856 struct ethtool_coalesce *ic,
857 struct kernel_ethtool_coalesce *kernel_coal,
858 struct netlink_ext_ack *extack)
859 {
860 struct dpaa2_eth_priv *priv = netdev_priv(dev);
861 struct dpaa2_io *dpio = priv->channel[0]->dpio;
862
863 dpaa2_io_get_irq_coalescing(dpio, &ic->rx_coalesce_usecs);
864 ic->use_adaptive_rx_coalesce = dpaa2_io_get_adaptive_coalescing(dpio);
865
866 return 0;
867 }
868
dpaa2_eth_set_coalesce(struct net_device * dev,struct ethtool_coalesce * ic,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)869 static int dpaa2_eth_set_coalesce(struct net_device *dev,
870 struct ethtool_coalesce *ic,
871 struct kernel_ethtool_coalesce *kernel_coal,
872 struct netlink_ext_ack *extack)
873 {
874 struct dpaa2_eth_priv *priv = netdev_priv(dev);
875 struct dpaa2_io *dpio;
876 int prev_adaptive;
877 u32 prev_rx_usecs;
878 int i, j, err;
879
880 /* Keep track of the previous value, just in case we fail */
881 dpio = priv->channel[0]->dpio;
882 dpaa2_io_get_irq_coalescing(dpio, &prev_rx_usecs);
883 prev_adaptive = dpaa2_io_get_adaptive_coalescing(dpio);
884
885 /* Setup new value for rx coalescing */
886 for (i = 0; i < priv->num_channels; i++) {
887 dpio = priv->channel[i]->dpio;
888
889 dpaa2_io_set_adaptive_coalescing(dpio,
890 ic->use_adaptive_rx_coalesce);
891 err = dpaa2_io_set_irq_coalescing(dpio, ic->rx_coalesce_usecs);
892 if (err)
893 goto restore_rx_usecs;
894 }
895
896 return 0;
897
898 restore_rx_usecs:
899 for (j = 0; j < i; j++) {
900 dpio = priv->channel[j]->dpio;
901
902 dpaa2_io_set_irq_coalescing(dpio, prev_rx_usecs);
903 dpaa2_io_set_adaptive_coalescing(dpio, prev_adaptive);
904 }
905
906 return err;
907 }
908
dpaa2_eth_get_channels(struct net_device * net_dev,struct ethtool_channels * channels)909 static void dpaa2_eth_get_channels(struct net_device *net_dev,
910 struct ethtool_channels *channels)
911 {
912 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
913 int queue_count = dpaa2_eth_queue_count(priv);
914
915 channels->max_rx = queue_count;
916 channels->max_tx = queue_count;
917 channels->rx_count = queue_count;
918 channels->tx_count = queue_count;
919
920 /* Tx confirmation and Rx error */
921 channels->max_other = queue_count + 1;
922 channels->max_combined = channels->max_rx +
923 channels->max_tx +
924 channels->max_other;
925 /* Tx conf and Rx err */
926 channels->other_count = queue_count + 1;
927 channels->combined_count = channels->rx_count +
928 channels->tx_count +
929 channels->other_count;
930 }
931
932 const struct ethtool_ops dpaa2_ethtool_ops = {
933 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
934 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
935 .get_drvinfo = dpaa2_eth_get_drvinfo,
936 .nway_reset = dpaa2_eth_nway_reset,
937 .get_link = ethtool_op_get_link,
938 .get_link_ksettings = dpaa2_eth_get_link_ksettings,
939 .set_link_ksettings = dpaa2_eth_set_link_ksettings,
940 .get_pauseparam = dpaa2_eth_get_pauseparam,
941 .set_pauseparam = dpaa2_eth_set_pauseparam,
942 .get_sset_count = dpaa2_eth_get_sset_count,
943 .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
944 .get_strings = dpaa2_eth_get_strings,
945 .get_rxnfc = dpaa2_eth_get_rxnfc,
946 .set_rxnfc = dpaa2_eth_set_rxnfc,
947 .get_ts_info = dpaa2_eth_get_ts_info,
948 .get_tunable = dpaa2_eth_get_tunable,
949 .set_tunable = dpaa2_eth_set_tunable,
950 .get_coalesce = dpaa2_eth_get_coalesce,
951 .set_coalesce = dpaa2_eth_set_coalesce,
952 .get_channels = dpaa2_eth_get_channels,
953 };
954