1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /* Copyright 2017-2019 NXP */
3
4 #include <linux/net_tstamp.h>
5 #include <linux/module.h>
6 #include "enetc.h"
7
8 static const u32 enetc_si_regs[] = {
9 ENETC_SIMR, ENETC_SIPMAR0, ENETC_SIPMAR1, ENETC_SICBDRMR,
10 ENETC_SICBDRSR, ENETC_SICBDRBAR0, ENETC_SICBDRBAR1, ENETC_SICBDRPIR,
11 ENETC_SICBDRCIR, ENETC_SICBDRLENR, ENETC_SICAPR0, ENETC_SICAPR1,
12 ENETC_SIUEFDCR
13 };
14
15 static const u32 enetc_txbdr_regs[] = {
16 ENETC_TBMR, ENETC_TBSR, ENETC_TBBAR0, ENETC_TBBAR1,
17 ENETC_TBPIR, ENETC_TBCIR, ENETC_TBLENR, ENETC_TBIER, ENETC_TBICR0,
18 ENETC_TBICR1
19 };
20
21 static const u32 enetc_rxbdr_regs[] = {
22 ENETC_RBMR, ENETC_RBSR, ENETC_RBBSR, ENETC_RBCIR, ENETC_RBBAR0,
23 ENETC_RBBAR1, ENETC_RBPIR, ENETC_RBLENR, ENETC_RBIER, ENETC_RBICR0,
24 ENETC_RBICR1
25 };
26
27 static const u32 enetc_port_regs[] = {
28 ENETC_PMR, ENETC_PSR, ENETC_PSIPMR, ENETC_PSIPMAR0(0),
29 ENETC_PSIPMAR1(0), ENETC_PTXMBAR, ENETC_PCAPR0, ENETC_PCAPR1,
30 ENETC_PSICFGR0(0), ENETC_PRFSCAPR, ENETC_PTCMSDUR(0),
31 ENETC_PM0_CMD_CFG, ENETC_PM0_MAXFRM, ENETC_PM0_IF_MODE
32 };
33
enetc_get_reglen(struct net_device * ndev)34 static int enetc_get_reglen(struct net_device *ndev)
35 {
36 struct enetc_ndev_priv *priv = netdev_priv(ndev);
37 struct enetc_hw *hw = &priv->si->hw;
38 int len;
39
40 len = ARRAY_SIZE(enetc_si_regs);
41 len += ARRAY_SIZE(enetc_txbdr_regs) * priv->num_tx_rings;
42 len += ARRAY_SIZE(enetc_rxbdr_regs) * priv->num_rx_rings;
43
44 if (hw->port)
45 len += ARRAY_SIZE(enetc_port_regs);
46
47 len *= sizeof(u32) * 2; /* store 2 entries per reg: addr and value */
48
49 return len;
50 }
51
enetc_get_regs(struct net_device * ndev,struct ethtool_regs * regs,void * regbuf)52 static void enetc_get_regs(struct net_device *ndev, struct ethtool_regs *regs,
53 void *regbuf)
54 {
55 struct enetc_ndev_priv *priv = netdev_priv(ndev);
56 struct enetc_hw *hw = &priv->si->hw;
57 u32 *buf = (u32 *)regbuf;
58 int i, j;
59 u32 addr;
60
61 for (i = 0; i < ARRAY_SIZE(enetc_si_regs); i++) {
62 *buf++ = enetc_si_regs[i];
63 *buf++ = enetc_rd(hw, enetc_si_regs[i]);
64 }
65
66 for (i = 0; i < priv->num_tx_rings; i++) {
67 for (j = 0; j < ARRAY_SIZE(enetc_txbdr_regs); j++) {
68 addr = ENETC_BDR(TX, i, enetc_txbdr_regs[j]);
69
70 *buf++ = addr;
71 *buf++ = enetc_rd(hw, addr);
72 }
73 }
74
75 for (i = 0; i < priv->num_rx_rings; i++) {
76 for (j = 0; j < ARRAY_SIZE(enetc_rxbdr_regs); j++) {
77 addr = ENETC_BDR(RX, i, enetc_rxbdr_regs[j]);
78
79 *buf++ = addr;
80 *buf++ = enetc_rd(hw, addr);
81 }
82 }
83
84 if (!hw->port)
85 return;
86
87 for (i = 0; i < ARRAY_SIZE(enetc_port_regs); i++) {
88 addr = ENETC_PORT_BASE + enetc_port_regs[i];
89 *buf++ = addr;
90 *buf++ = enetc_rd(hw, addr);
91 }
92 }
93
94 static const struct {
95 int reg;
96 char name[ETH_GSTRING_LEN];
97 } enetc_si_counters[] = {
98 { ENETC_SIROCT, "SI rx octets" },
99 { ENETC_SIRFRM, "SI rx frames" },
100 { ENETC_SIRUCA, "SI rx u-cast frames" },
101 { ENETC_SIRMCA, "SI rx m-cast frames" },
102 { ENETC_SITOCT, "SI tx octets" },
103 { ENETC_SITFRM, "SI tx frames" },
104 { ENETC_SITUCA, "SI tx u-cast frames" },
105 { ENETC_SITMCA, "SI tx m-cast frames" },
106 { ENETC_RBDCR(0), "Rx ring 0 discarded frames" },
107 { ENETC_RBDCR(1), "Rx ring 1 discarded frames" },
108 { ENETC_RBDCR(2), "Rx ring 2 discarded frames" },
109 { ENETC_RBDCR(3), "Rx ring 3 discarded frames" },
110 { ENETC_RBDCR(4), "Rx ring 4 discarded frames" },
111 { ENETC_RBDCR(5), "Rx ring 5 discarded frames" },
112 { ENETC_RBDCR(6), "Rx ring 6 discarded frames" },
113 { ENETC_RBDCR(7), "Rx ring 7 discarded frames" },
114 { ENETC_RBDCR(8), "Rx ring 8 discarded frames" },
115 { ENETC_RBDCR(9), "Rx ring 9 discarded frames" },
116 { ENETC_RBDCR(10), "Rx ring 10 discarded frames" },
117 { ENETC_RBDCR(11), "Rx ring 11 discarded frames" },
118 { ENETC_RBDCR(12), "Rx ring 12 discarded frames" },
119 { ENETC_RBDCR(13), "Rx ring 13 discarded frames" },
120 { ENETC_RBDCR(14), "Rx ring 14 discarded frames" },
121 { ENETC_RBDCR(15), "Rx ring 15 discarded frames" },
122 };
123
124 static const struct {
125 int reg;
126 char name[ETH_GSTRING_LEN];
127 } enetc_port_counters[] = {
128 { ENETC_PM0_REOCT, "MAC rx ethernet octets" },
129 { ENETC_PM0_RALN, "MAC rx alignment errors" },
130 { ENETC_PM0_RXPF, "MAC rx valid pause frames" },
131 { ENETC_PM0_RFRM, "MAC rx valid frames" },
132 { ENETC_PM0_RFCS, "MAC rx fcs errors" },
133 { ENETC_PM0_RVLAN, "MAC rx VLAN frames" },
134 { ENETC_PM0_RERR, "MAC rx frame errors" },
135 { ENETC_PM0_RUCA, "MAC rx unicast frames" },
136 { ENETC_PM0_RMCA, "MAC rx multicast frames" },
137 { ENETC_PM0_RBCA, "MAC rx broadcast frames" },
138 { ENETC_PM0_RDRP, "MAC rx dropped packets" },
139 { ENETC_PM0_RPKT, "MAC rx packets" },
140 { ENETC_PM0_RUND, "MAC rx undersized packets" },
141 { ENETC_PM0_R64, "MAC rx 64 byte packets" },
142 { ENETC_PM0_R127, "MAC rx 65-127 byte packets" },
143 { ENETC_PM0_R255, "MAC rx 128-255 byte packets" },
144 { ENETC_PM0_R511, "MAC rx 256-511 byte packets" },
145 { ENETC_PM0_R1023, "MAC rx 512-1023 byte packets" },
146 { ENETC_PM0_R1522, "MAC rx 1024-1522 byte packets" },
147 { ENETC_PM0_R1523X, "MAC rx 1523 to max-octet packets" },
148 { ENETC_PM0_ROVR, "MAC rx oversized packets" },
149 { ENETC_PM0_RJBR, "MAC rx jabber packets" },
150 { ENETC_PM0_RFRG, "MAC rx fragment packets" },
151 { ENETC_PM0_RCNP, "MAC rx control packets" },
152 { ENETC_PM0_RDRNTP, "MAC rx fifo drop" },
153 { ENETC_PM0_TEOCT, "MAC tx ethernet octets" },
154 { ENETC_PM0_TOCT, "MAC tx octets" },
155 { ENETC_PM0_TCRSE, "MAC tx carrier sense errors" },
156 { ENETC_PM0_TXPF, "MAC tx valid pause frames" },
157 { ENETC_PM0_TFRM, "MAC tx frames" },
158 { ENETC_PM0_TFCS, "MAC tx fcs errors" },
159 { ENETC_PM0_TVLAN, "MAC tx VLAN frames" },
160 { ENETC_PM0_TERR, "MAC tx frames" },
161 { ENETC_PM0_TUCA, "MAC tx unicast frames" },
162 { ENETC_PM0_TMCA, "MAC tx multicast frames" },
163 { ENETC_PM0_TBCA, "MAC tx broadcast frames" },
164 { ENETC_PM0_TPKT, "MAC tx packets" },
165 { ENETC_PM0_TUND, "MAC tx undersized packets" },
166 { ENETC_PM0_T64, "MAC tx 64 byte packets" },
167 { ENETC_PM0_T127, "MAC tx 65-127 byte packets" },
168 { ENETC_PM0_T255, "MAC tx 128-255 byte packets" },
169 { ENETC_PM0_T511, "MAC tx 256-511 byte packets" },
170 { ENETC_PM0_T1023, "MAC tx 512-1023 byte packets" },
171 { ENETC_PM0_T1522, "MAC tx 1024-1522 byte packets" },
172 { ENETC_PM0_T1523X, "MAC tx 1523 to max-octet packets" },
173 { ENETC_PM0_TCNP, "MAC tx control packets" },
174 { ENETC_PM0_TDFR, "MAC tx deferred packets" },
175 { ENETC_PM0_TMCOL, "MAC tx multiple collisions" },
176 { ENETC_PM0_TSCOL, "MAC tx single collisions" },
177 { ENETC_PM0_TLCOL, "MAC tx late collisions" },
178 { ENETC_PM0_TECOL, "MAC tx excessive collisions" },
179 { ENETC_UFDMF, "SI MAC nomatch u-cast discards" },
180 { ENETC_MFDMF, "SI MAC nomatch m-cast discards" },
181 { ENETC_PBFDSIR, "SI MAC nomatch b-cast discards" },
182 { ENETC_PUFDVFR, "SI VLAN nomatch u-cast discards" },
183 { ENETC_PMFDVFR, "SI VLAN nomatch m-cast discards" },
184 { ENETC_PBFDVFR, "SI VLAN nomatch b-cast discards" },
185 { ENETC_PFDMSAPR, "SI pruning discarded frames" },
186 { ENETC_PICDR(0), "ICM DR0 discarded frames" },
187 { ENETC_PICDR(1), "ICM DR1 discarded frames" },
188 { ENETC_PICDR(2), "ICM DR2 discarded frames" },
189 { ENETC_PICDR(3), "ICM DR3 discarded frames" },
190 };
191
192 static const char rx_ring_stats[][ETH_GSTRING_LEN] = {
193 "Rx ring %2d frames",
194 "Rx ring %2d alloc errors",
195 };
196
197 static const char tx_ring_stats[][ETH_GSTRING_LEN] = {
198 "Tx ring %2d frames",
199 };
200
enetc_get_sset_count(struct net_device * ndev,int sset)201 static int enetc_get_sset_count(struct net_device *ndev, int sset)
202 {
203 struct enetc_ndev_priv *priv = netdev_priv(ndev);
204 int len;
205
206 if (sset != ETH_SS_STATS)
207 return -EOPNOTSUPP;
208
209 len = ARRAY_SIZE(enetc_si_counters) +
210 ARRAY_SIZE(tx_ring_stats) * priv->num_tx_rings +
211 ARRAY_SIZE(rx_ring_stats) * priv->num_rx_rings;
212
213 if (!enetc_si_is_pf(priv->si))
214 return len;
215
216 len += ARRAY_SIZE(enetc_port_counters);
217
218 return len;
219 }
220
enetc_get_strings(struct net_device * ndev,u32 stringset,u8 * data)221 static void enetc_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
222 {
223 struct enetc_ndev_priv *priv = netdev_priv(ndev);
224 u8 *p = data;
225 int i, j;
226
227 switch (stringset) {
228 case ETH_SS_STATS:
229 for (i = 0; i < ARRAY_SIZE(enetc_si_counters); i++) {
230 strlcpy(p, enetc_si_counters[i].name, ETH_GSTRING_LEN);
231 p += ETH_GSTRING_LEN;
232 }
233 for (i = 0; i < priv->num_tx_rings; i++) {
234 for (j = 0; j < ARRAY_SIZE(tx_ring_stats); j++) {
235 snprintf(p, ETH_GSTRING_LEN, tx_ring_stats[j],
236 i);
237 p += ETH_GSTRING_LEN;
238 }
239 }
240 for (i = 0; i < priv->num_rx_rings; i++) {
241 for (j = 0; j < ARRAY_SIZE(rx_ring_stats); j++) {
242 snprintf(p, ETH_GSTRING_LEN, rx_ring_stats[j],
243 i);
244 p += ETH_GSTRING_LEN;
245 }
246 }
247
248 if (!enetc_si_is_pf(priv->si))
249 break;
250
251 for (i = 0; i < ARRAY_SIZE(enetc_port_counters); i++) {
252 strlcpy(p, enetc_port_counters[i].name,
253 ETH_GSTRING_LEN);
254 p += ETH_GSTRING_LEN;
255 }
256 break;
257 }
258 }
259
enetc_get_ethtool_stats(struct net_device * ndev,struct ethtool_stats * stats,u64 * data)260 static void enetc_get_ethtool_stats(struct net_device *ndev,
261 struct ethtool_stats *stats, u64 *data)
262 {
263 struct enetc_ndev_priv *priv = netdev_priv(ndev);
264 struct enetc_hw *hw = &priv->si->hw;
265 int i, o = 0;
266
267 for (i = 0; i < ARRAY_SIZE(enetc_si_counters); i++)
268 data[o++] = enetc_rd64(hw, enetc_si_counters[i].reg);
269
270 for (i = 0; i < priv->num_tx_rings; i++)
271 data[o++] = priv->tx_ring[i]->stats.packets;
272
273 for (i = 0; i < priv->num_rx_rings; i++) {
274 data[o++] = priv->rx_ring[i]->stats.packets;
275 data[o++] = priv->rx_ring[i]->stats.rx_alloc_errs;
276 }
277
278 if (!enetc_si_is_pf(priv->si))
279 return;
280
281 for (i = 0; i < ARRAY_SIZE(enetc_port_counters); i++)
282 data[o++] = enetc_port_rd(hw, enetc_port_counters[i].reg);
283 }
284
285 #define ENETC_RSSHASH_L3 (RXH_L2DA | RXH_VLAN | RXH_L3_PROTO | RXH_IP_SRC | \
286 RXH_IP_DST)
287 #define ENETC_RSSHASH_L4 (ENETC_RSSHASH_L3 | RXH_L4_B_0_1 | RXH_L4_B_2_3)
enetc_get_rsshash(struct ethtool_rxnfc * rxnfc)288 static int enetc_get_rsshash(struct ethtool_rxnfc *rxnfc)
289 {
290 static const u32 rsshash[] = {
291 [TCP_V4_FLOW] = ENETC_RSSHASH_L4,
292 [UDP_V4_FLOW] = ENETC_RSSHASH_L4,
293 [SCTP_V4_FLOW] = ENETC_RSSHASH_L4,
294 [AH_ESP_V4_FLOW] = ENETC_RSSHASH_L3,
295 [IPV4_FLOW] = ENETC_RSSHASH_L3,
296 [TCP_V6_FLOW] = ENETC_RSSHASH_L4,
297 [UDP_V6_FLOW] = ENETC_RSSHASH_L4,
298 [SCTP_V6_FLOW] = ENETC_RSSHASH_L4,
299 [AH_ESP_V6_FLOW] = ENETC_RSSHASH_L3,
300 [IPV6_FLOW] = ENETC_RSSHASH_L3,
301 [ETHER_FLOW] = 0,
302 };
303
304 if (rxnfc->flow_type >= ARRAY_SIZE(rsshash))
305 return -EINVAL;
306
307 rxnfc->data = rsshash[rxnfc->flow_type];
308
309 return 0;
310 }
311
312 /* current HW spec does byte reversal on everything including MAC addresses */
ether_addr_copy_swap(u8 * dst,const u8 * src)313 static void ether_addr_copy_swap(u8 *dst, const u8 *src)
314 {
315 int i;
316
317 for (i = 0; i < ETH_ALEN; i++)
318 dst[i] = src[ETH_ALEN - i - 1];
319 }
320
enetc_set_cls_entry(struct enetc_si * si,struct ethtool_rx_flow_spec * fs,bool en)321 static int enetc_set_cls_entry(struct enetc_si *si,
322 struct ethtool_rx_flow_spec *fs, bool en)
323 {
324 struct ethtool_tcpip4_spec *l4ip4_h, *l4ip4_m;
325 struct ethtool_usrip4_spec *l3ip4_h, *l3ip4_m;
326 struct ethhdr *eth_h, *eth_m;
327 struct enetc_cmd_rfse rfse = { {0} };
328
329 if (!en)
330 goto done;
331
332 switch (fs->flow_type & 0xff) {
333 case TCP_V4_FLOW:
334 l4ip4_h = &fs->h_u.tcp_ip4_spec;
335 l4ip4_m = &fs->m_u.tcp_ip4_spec;
336 goto l4ip4;
337 case UDP_V4_FLOW:
338 l4ip4_h = &fs->h_u.udp_ip4_spec;
339 l4ip4_m = &fs->m_u.udp_ip4_spec;
340 goto l4ip4;
341 case SCTP_V4_FLOW:
342 l4ip4_h = &fs->h_u.sctp_ip4_spec;
343 l4ip4_m = &fs->m_u.sctp_ip4_spec;
344 l4ip4:
345 rfse.sip_h[0] = l4ip4_h->ip4src;
346 rfse.sip_m[0] = l4ip4_m->ip4src;
347 rfse.dip_h[0] = l4ip4_h->ip4dst;
348 rfse.dip_m[0] = l4ip4_m->ip4dst;
349 rfse.sport_h = ntohs(l4ip4_h->psrc);
350 rfse.sport_m = ntohs(l4ip4_m->psrc);
351 rfse.dport_h = ntohs(l4ip4_h->pdst);
352 rfse.dport_m = ntohs(l4ip4_m->pdst);
353 if (l4ip4_m->tos)
354 netdev_warn(si->ndev, "ToS field is not supported and was ignored\n");
355 rfse.ethtype_h = ETH_P_IP; /* IPv4 */
356 rfse.ethtype_m = 0xffff;
357 break;
358 case IP_USER_FLOW:
359 l3ip4_h = &fs->h_u.usr_ip4_spec;
360 l3ip4_m = &fs->m_u.usr_ip4_spec;
361
362 rfse.sip_h[0] = l3ip4_h->ip4src;
363 rfse.sip_m[0] = l3ip4_m->ip4src;
364 rfse.dip_h[0] = l3ip4_h->ip4dst;
365 rfse.dip_m[0] = l3ip4_m->ip4dst;
366 if (l3ip4_m->tos)
367 netdev_warn(si->ndev, "ToS field is not supported and was ignored\n");
368 rfse.ethtype_h = ETH_P_IP; /* IPv4 */
369 rfse.ethtype_m = 0xffff;
370 break;
371 case ETHER_FLOW:
372 eth_h = &fs->h_u.ether_spec;
373 eth_m = &fs->m_u.ether_spec;
374
375 ether_addr_copy_swap(rfse.smac_h, eth_h->h_source);
376 ether_addr_copy_swap(rfse.smac_m, eth_m->h_source);
377 ether_addr_copy_swap(rfse.dmac_h, eth_h->h_dest);
378 ether_addr_copy_swap(rfse.dmac_m, eth_m->h_dest);
379 rfse.ethtype_h = ntohs(eth_h->h_proto);
380 rfse.ethtype_m = ntohs(eth_m->h_proto);
381 break;
382 default:
383 return -EOPNOTSUPP;
384 }
385
386 rfse.mode |= ENETC_RFSE_EN;
387 if (fs->ring_cookie != RX_CLS_FLOW_DISC) {
388 rfse.mode |= ENETC_RFSE_MODE_BD;
389 rfse.result = fs->ring_cookie;
390 }
391 done:
392 return enetc_set_fs_entry(si, &rfse, fs->location);
393 }
394
enetc_get_rxnfc(struct net_device * ndev,struct ethtool_rxnfc * rxnfc,u32 * rule_locs)395 static int enetc_get_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *rxnfc,
396 u32 *rule_locs)
397 {
398 struct enetc_ndev_priv *priv = netdev_priv(ndev);
399 int i, j;
400
401 switch (rxnfc->cmd) {
402 case ETHTOOL_GRXRINGS:
403 rxnfc->data = priv->num_rx_rings;
404 break;
405 case ETHTOOL_GRXFH:
406 /* get RSS hash config */
407 return enetc_get_rsshash(rxnfc);
408 case ETHTOOL_GRXCLSRLCNT:
409 /* total number of entries */
410 rxnfc->data = priv->si->num_fs_entries;
411 /* number of entries in use */
412 rxnfc->rule_cnt = 0;
413 for (i = 0; i < priv->si->num_fs_entries; i++)
414 if (priv->cls_rules[i].used)
415 rxnfc->rule_cnt++;
416 break;
417 case ETHTOOL_GRXCLSRULE:
418 if (rxnfc->fs.location >= priv->si->num_fs_entries)
419 return -EINVAL;
420
421 /* get entry x */
422 rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
423 break;
424 case ETHTOOL_GRXCLSRLALL:
425 /* total number of entries */
426 rxnfc->data = priv->si->num_fs_entries;
427 /* array of indexes of used entries */
428 j = 0;
429 for (i = 0; i < priv->si->num_fs_entries; i++) {
430 if (!priv->cls_rules[i].used)
431 continue;
432 if (j == rxnfc->rule_cnt)
433 return -EMSGSIZE;
434 rule_locs[j++] = i;
435 }
436 /* number of entries in use */
437 rxnfc->rule_cnt = j;
438 break;
439 default:
440 return -EOPNOTSUPP;
441 }
442
443 return 0;
444 }
445
enetc_set_rxnfc(struct net_device * ndev,struct ethtool_rxnfc * rxnfc)446 static int enetc_set_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *rxnfc)
447 {
448 struct enetc_ndev_priv *priv = netdev_priv(ndev);
449 int err;
450
451 switch (rxnfc->cmd) {
452 case ETHTOOL_SRXCLSRLINS:
453 if (rxnfc->fs.location >= priv->si->num_fs_entries)
454 return -EINVAL;
455
456 if (rxnfc->fs.ring_cookie >= priv->num_rx_rings &&
457 rxnfc->fs.ring_cookie != RX_CLS_FLOW_DISC)
458 return -EINVAL;
459
460 err = enetc_set_cls_entry(priv->si, &rxnfc->fs, true);
461 if (err)
462 return err;
463 priv->cls_rules[rxnfc->fs.location].fs = rxnfc->fs;
464 priv->cls_rules[rxnfc->fs.location].used = 1;
465 break;
466 case ETHTOOL_SRXCLSRLDEL:
467 if (rxnfc->fs.location >= priv->si->num_fs_entries)
468 return -EINVAL;
469
470 err = enetc_set_cls_entry(priv->si, &rxnfc->fs, false);
471 if (err)
472 return err;
473 priv->cls_rules[rxnfc->fs.location].used = 0;
474 break;
475 default:
476 return -EOPNOTSUPP;
477 }
478
479 return 0;
480 }
481
enetc_get_rxfh_key_size(struct net_device * ndev)482 static u32 enetc_get_rxfh_key_size(struct net_device *ndev)
483 {
484 struct enetc_ndev_priv *priv = netdev_priv(ndev);
485
486 /* return the size of the RX flow hash key. PF only */
487 return (priv->si->hw.port) ? ENETC_RSSHASH_KEY_SIZE : 0;
488 }
489
enetc_get_rxfh_indir_size(struct net_device * ndev)490 static u32 enetc_get_rxfh_indir_size(struct net_device *ndev)
491 {
492 struct enetc_ndev_priv *priv = netdev_priv(ndev);
493
494 /* return the size of the RX flow hash indirection table */
495 return priv->si->num_rss;
496 }
497
enetc_get_rxfh(struct net_device * ndev,u32 * indir,u8 * key,u8 * hfunc)498 static int enetc_get_rxfh(struct net_device *ndev, u32 *indir, u8 *key,
499 u8 *hfunc)
500 {
501 struct enetc_ndev_priv *priv = netdev_priv(ndev);
502 struct enetc_hw *hw = &priv->si->hw;
503 int err = 0, i;
504
505 /* return hash function */
506 if (hfunc)
507 *hfunc = ETH_RSS_HASH_TOP;
508
509 /* return hash key */
510 if (key && hw->port)
511 for (i = 0; i < ENETC_RSSHASH_KEY_SIZE / 4; i++)
512 ((u32 *)key)[i] = enetc_port_rd(hw, ENETC_PRSSK(i));
513
514 /* return RSS table */
515 if (indir)
516 err = enetc_get_rss_table(priv->si, indir, priv->si->num_rss);
517
518 return err;
519 }
520
enetc_set_rss_key(struct enetc_hw * hw,const u8 * bytes)521 void enetc_set_rss_key(struct enetc_hw *hw, const u8 *bytes)
522 {
523 int i;
524
525 for (i = 0; i < ENETC_RSSHASH_KEY_SIZE / 4; i++)
526 enetc_port_wr(hw, ENETC_PRSSK(i), ((u32 *)bytes)[i]);
527 }
528
enetc_set_rxfh(struct net_device * ndev,const u32 * indir,const u8 * key,const u8 hfunc)529 static int enetc_set_rxfh(struct net_device *ndev, const u32 *indir,
530 const u8 *key, const u8 hfunc)
531 {
532 struct enetc_ndev_priv *priv = netdev_priv(ndev);
533 struct enetc_hw *hw = &priv->si->hw;
534 int err = 0;
535
536 /* set hash key, if PF */
537 if (key && hw->port)
538 enetc_set_rss_key(hw, key);
539
540 /* set RSS table */
541 if (indir)
542 err = enetc_set_rss_table(priv->si, indir, priv->si->num_rss);
543
544 return err;
545 }
546
enetc_get_ringparam(struct net_device * ndev,struct ethtool_ringparam * ring)547 static void enetc_get_ringparam(struct net_device *ndev,
548 struct ethtool_ringparam *ring)
549 {
550 struct enetc_ndev_priv *priv = netdev_priv(ndev);
551
552 ring->rx_pending = priv->rx_bd_count;
553 ring->tx_pending = priv->tx_bd_count;
554
555 /* do some h/w sanity checks for BDR length */
556 if (netif_running(ndev)) {
557 struct enetc_hw *hw = &priv->si->hw;
558 u32 val = enetc_rxbdr_rd(hw, 0, ENETC_RBLENR);
559
560 if (val != priv->rx_bd_count)
561 netif_err(priv, hw, ndev, "RxBDR[RBLENR] = %d!\n", val);
562
563 val = enetc_txbdr_rd(hw, 0, ENETC_TBLENR);
564
565 if (val != priv->tx_bd_count)
566 netif_err(priv, hw, ndev, "TxBDR[TBLENR] = %d!\n", val);
567 }
568 }
569
enetc_get_coalesce(struct net_device * ndev,struct ethtool_coalesce * ic)570 static int enetc_get_coalesce(struct net_device *ndev,
571 struct ethtool_coalesce *ic)
572 {
573 struct enetc_ndev_priv *priv = netdev_priv(ndev);
574 struct enetc_int_vector *v = priv->int_vector[0];
575
576 ic->tx_coalesce_usecs = enetc_cycles_to_usecs(priv->tx_ictt);
577 ic->rx_coalesce_usecs = enetc_cycles_to_usecs(v->rx_ictt);
578
579 ic->tx_max_coalesced_frames = ENETC_TXIC_PKTTHR;
580 ic->rx_max_coalesced_frames = ENETC_RXIC_PKTTHR;
581
582 ic->use_adaptive_rx_coalesce = priv->ic_mode & ENETC_IC_RX_ADAPTIVE;
583
584 return 0;
585 }
586
enetc_set_coalesce(struct net_device * ndev,struct ethtool_coalesce * ic)587 static int enetc_set_coalesce(struct net_device *ndev,
588 struct ethtool_coalesce *ic)
589 {
590 struct enetc_ndev_priv *priv = netdev_priv(ndev);
591 u32 rx_ictt, tx_ictt;
592 int i, ic_mode;
593 bool changed;
594
595 tx_ictt = enetc_usecs_to_cycles(ic->tx_coalesce_usecs);
596 rx_ictt = enetc_usecs_to_cycles(ic->rx_coalesce_usecs);
597
598 if (ic->rx_max_coalesced_frames != ENETC_RXIC_PKTTHR)
599 return -EOPNOTSUPP;
600
601 if (ic->tx_max_coalesced_frames != ENETC_TXIC_PKTTHR)
602 return -EOPNOTSUPP;
603
604 ic_mode = ENETC_IC_NONE;
605 if (ic->use_adaptive_rx_coalesce) {
606 ic_mode |= ENETC_IC_RX_ADAPTIVE;
607 rx_ictt = 0x1;
608 } else {
609 ic_mode |= rx_ictt ? ENETC_IC_RX_MANUAL : 0;
610 }
611
612 ic_mode |= tx_ictt ? ENETC_IC_TX_MANUAL : 0;
613
614 /* commit the settings */
615 changed = (ic_mode != priv->ic_mode) || (priv->tx_ictt != tx_ictt);
616
617 priv->ic_mode = ic_mode;
618 priv->tx_ictt = tx_ictt;
619
620 for (i = 0; i < priv->bdr_int_num; i++) {
621 struct enetc_int_vector *v = priv->int_vector[i];
622
623 v->rx_ictt = rx_ictt;
624 v->rx_dim_en = !!(ic_mode & ENETC_IC_RX_ADAPTIVE);
625 }
626
627 if (netif_running(ndev) && changed) {
628 /* reconfigure the operation mode of h/w interrupts,
629 * traffic needs to be paused in the process
630 */
631 enetc_stop(ndev);
632 enetc_start(ndev);
633 }
634
635 return 0;
636 }
637
enetc_get_ts_info(struct net_device * ndev,struct ethtool_ts_info * info)638 static int enetc_get_ts_info(struct net_device *ndev,
639 struct ethtool_ts_info *info)
640 {
641 int *phc_idx;
642
643 phc_idx = symbol_get(enetc_phc_index);
644 if (phc_idx) {
645 info->phc_index = *phc_idx;
646 symbol_put(enetc_phc_index);
647 } else {
648 info->phc_index = -1;
649 }
650
651 #ifdef CONFIG_FSL_ENETC_PTP_CLOCK
652 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
653 SOF_TIMESTAMPING_RX_HARDWARE |
654 SOF_TIMESTAMPING_RAW_HARDWARE;
655
656 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
657 (1 << HWTSTAMP_TX_ON);
658 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
659 (1 << HWTSTAMP_FILTER_ALL);
660 #else
661 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
662 SOF_TIMESTAMPING_TX_SOFTWARE |
663 SOF_TIMESTAMPING_SOFTWARE;
664 #endif
665 return 0;
666 }
667
enetc_get_wol(struct net_device * dev,struct ethtool_wolinfo * wol)668 static void enetc_get_wol(struct net_device *dev,
669 struct ethtool_wolinfo *wol)
670 {
671 wol->supported = 0;
672 wol->wolopts = 0;
673
674 if (dev->phydev)
675 phy_ethtool_get_wol(dev->phydev, wol);
676 }
677
enetc_set_wol(struct net_device * dev,struct ethtool_wolinfo * wol)678 static int enetc_set_wol(struct net_device *dev,
679 struct ethtool_wolinfo *wol)
680 {
681 int ret;
682
683 if (!dev->phydev)
684 return -EOPNOTSUPP;
685
686 ret = phy_ethtool_set_wol(dev->phydev, wol);
687 if (!ret)
688 device_set_wakeup_enable(&dev->dev, wol->wolopts);
689
690 return ret;
691 }
692
enetc_get_link_ksettings(struct net_device * dev,struct ethtool_link_ksettings * cmd)693 static int enetc_get_link_ksettings(struct net_device *dev,
694 struct ethtool_link_ksettings *cmd)
695 {
696 struct enetc_ndev_priv *priv = netdev_priv(dev);
697
698 if (!priv->phylink)
699 return -EOPNOTSUPP;
700
701 return phylink_ethtool_ksettings_get(priv->phylink, cmd);
702 }
703
enetc_set_link_ksettings(struct net_device * dev,const struct ethtool_link_ksettings * cmd)704 static int enetc_set_link_ksettings(struct net_device *dev,
705 const struct ethtool_link_ksettings *cmd)
706 {
707 struct enetc_ndev_priv *priv = netdev_priv(dev);
708
709 if (!priv->phylink)
710 return -EOPNOTSUPP;
711
712 return phylink_ethtool_ksettings_set(priv->phylink, cmd);
713 }
714
715 static const struct ethtool_ops enetc_pf_ethtool_ops = {
716 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
717 ETHTOOL_COALESCE_MAX_FRAMES |
718 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
719 .get_regs_len = enetc_get_reglen,
720 .get_regs = enetc_get_regs,
721 .get_sset_count = enetc_get_sset_count,
722 .get_strings = enetc_get_strings,
723 .get_ethtool_stats = enetc_get_ethtool_stats,
724 .get_rxnfc = enetc_get_rxnfc,
725 .set_rxnfc = enetc_set_rxnfc,
726 .get_rxfh_key_size = enetc_get_rxfh_key_size,
727 .get_rxfh_indir_size = enetc_get_rxfh_indir_size,
728 .get_rxfh = enetc_get_rxfh,
729 .set_rxfh = enetc_set_rxfh,
730 .get_ringparam = enetc_get_ringparam,
731 .get_coalesce = enetc_get_coalesce,
732 .set_coalesce = enetc_set_coalesce,
733 .get_link_ksettings = enetc_get_link_ksettings,
734 .set_link_ksettings = enetc_set_link_ksettings,
735 .get_link = ethtool_op_get_link,
736 .get_ts_info = enetc_get_ts_info,
737 .get_wol = enetc_get_wol,
738 .set_wol = enetc_set_wol,
739 };
740
741 static const struct ethtool_ops enetc_vf_ethtool_ops = {
742 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
743 ETHTOOL_COALESCE_MAX_FRAMES |
744 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
745 .get_regs_len = enetc_get_reglen,
746 .get_regs = enetc_get_regs,
747 .get_sset_count = enetc_get_sset_count,
748 .get_strings = enetc_get_strings,
749 .get_ethtool_stats = enetc_get_ethtool_stats,
750 .get_rxnfc = enetc_get_rxnfc,
751 .set_rxnfc = enetc_set_rxnfc,
752 .get_rxfh_indir_size = enetc_get_rxfh_indir_size,
753 .get_rxfh = enetc_get_rxfh,
754 .set_rxfh = enetc_set_rxfh,
755 .get_ringparam = enetc_get_ringparam,
756 .get_coalesce = enetc_get_coalesce,
757 .set_coalesce = enetc_set_coalesce,
758 .get_link = ethtool_op_get_link,
759 .get_ts_info = enetc_get_ts_info,
760 };
761
enetc_set_ethtool_ops(struct net_device * ndev)762 void enetc_set_ethtool_ops(struct net_device *ndev)
763 {
764 struct enetc_ndev_priv *priv = netdev_priv(ndev);
765
766 if (enetc_si_is_pf(priv->si))
767 ndev->ethtool_ops = &enetc_pf_ethtool_ops;
768 else
769 ndev->ethtool_ops = &enetc_vf_ethtool_ops;
770 }
771
