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8#include <linux/ethtool.h>
9#include <linux/pci.h>
10#include <linux/net_tstamp.h>
11
12#include "nic_reg.h"
13#include "nic.h"
14#include "nicvf_queues.h"
15#include "q_struct.h"
16#include "thunder_bgx.h"
17#include "../common/cavium_ptp.h"
18
19#define DRV_NAME "nicvf"
20
21struct nicvf_stat {
22 char name[ETH_GSTRING_LEN];
23 unsigned int index;
24};
25
26#define NICVF_HW_STAT(stat) { \
27 .name = #stat, \
28 .index = offsetof(struct nicvf_hw_stats, stat) / sizeof(u64), \
29}
30
31#define NICVF_DRV_STAT(stat) { \
32 .name = #stat, \
33 .index = offsetof(struct nicvf_drv_stats, stat) / sizeof(u64), \
34}
35
36static const struct nicvf_stat nicvf_hw_stats[] = {
37 NICVF_HW_STAT(rx_bytes),
38 NICVF_HW_STAT(rx_frames),
39 NICVF_HW_STAT(rx_ucast_frames),
40 NICVF_HW_STAT(rx_bcast_frames),
41 NICVF_HW_STAT(rx_mcast_frames),
42 NICVF_HW_STAT(rx_drops),
43 NICVF_HW_STAT(rx_drop_red),
44 NICVF_HW_STAT(rx_drop_red_bytes),
45 NICVF_HW_STAT(rx_drop_overrun),
46 NICVF_HW_STAT(rx_drop_overrun_bytes),
47 NICVF_HW_STAT(rx_drop_bcast),
48 NICVF_HW_STAT(rx_drop_mcast),
49 NICVF_HW_STAT(rx_drop_l3_bcast),
50 NICVF_HW_STAT(rx_drop_l3_mcast),
51 NICVF_HW_STAT(rx_fcs_errors),
52 NICVF_HW_STAT(rx_l2_errors),
53 NICVF_HW_STAT(tx_bytes),
54 NICVF_HW_STAT(tx_frames),
55 NICVF_HW_STAT(tx_ucast_frames),
56 NICVF_HW_STAT(tx_bcast_frames),
57 NICVF_HW_STAT(tx_mcast_frames),
58 NICVF_HW_STAT(tx_drops),
59};
60
61static const struct nicvf_stat nicvf_drv_stats[] = {
62 NICVF_DRV_STAT(rx_bgx_truncated_pkts),
63 NICVF_DRV_STAT(rx_jabber_errs),
64 NICVF_DRV_STAT(rx_fcs_errs),
65 NICVF_DRV_STAT(rx_bgx_errs),
66 NICVF_DRV_STAT(rx_prel2_errs),
67 NICVF_DRV_STAT(rx_l2_hdr_malformed),
68 NICVF_DRV_STAT(rx_oversize),
69 NICVF_DRV_STAT(rx_undersize),
70 NICVF_DRV_STAT(rx_l2_len_mismatch),
71 NICVF_DRV_STAT(rx_l2_pclp),
72 NICVF_DRV_STAT(rx_ip_ver_errs),
73 NICVF_DRV_STAT(rx_ip_csum_errs),
74 NICVF_DRV_STAT(rx_ip_hdr_malformed),
75 NICVF_DRV_STAT(rx_ip_payload_malformed),
76 NICVF_DRV_STAT(rx_ip_ttl_errs),
77 NICVF_DRV_STAT(rx_l3_pclp),
78 NICVF_DRV_STAT(rx_l4_malformed),
79 NICVF_DRV_STAT(rx_l4_csum_errs),
80 NICVF_DRV_STAT(rx_udp_len_errs),
81 NICVF_DRV_STAT(rx_l4_port_errs),
82 NICVF_DRV_STAT(rx_tcp_flag_errs),
83 NICVF_DRV_STAT(rx_tcp_offset_errs),
84 NICVF_DRV_STAT(rx_l4_pclp),
85 NICVF_DRV_STAT(rx_truncated_pkts),
86
87 NICVF_DRV_STAT(tx_desc_fault),
88 NICVF_DRV_STAT(tx_hdr_cons_err),
89 NICVF_DRV_STAT(tx_subdesc_err),
90 NICVF_DRV_STAT(tx_max_size_exceeded),
91 NICVF_DRV_STAT(tx_imm_size_oflow),
92 NICVF_DRV_STAT(tx_data_seq_err),
93 NICVF_DRV_STAT(tx_mem_seq_err),
94 NICVF_DRV_STAT(tx_lock_viol),
95 NICVF_DRV_STAT(tx_data_fault),
96 NICVF_DRV_STAT(tx_tstmp_conflict),
97 NICVF_DRV_STAT(tx_tstmp_timeout),
98 NICVF_DRV_STAT(tx_mem_fault),
99 NICVF_DRV_STAT(tx_csum_overlap),
100 NICVF_DRV_STAT(tx_csum_overflow),
101
102 NICVF_DRV_STAT(tx_tso),
103 NICVF_DRV_STAT(tx_timeout),
104 NICVF_DRV_STAT(txq_stop),
105 NICVF_DRV_STAT(txq_wake),
106 NICVF_DRV_STAT(rcv_buffer_alloc_failures),
107 NICVF_DRV_STAT(page_alloc),
108};
109
110static const struct nicvf_stat nicvf_queue_stats[] = {
111 { "bytes", 0 },
112 { "frames", 1 },
113};
114
115static const unsigned int nicvf_n_hw_stats = ARRAY_SIZE(nicvf_hw_stats);
116static const unsigned int nicvf_n_drv_stats = ARRAY_SIZE(nicvf_drv_stats);
117static const unsigned int nicvf_n_queue_stats = ARRAY_SIZE(nicvf_queue_stats);
118
119static int nicvf_get_link_ksettings(struct net_device *netdev,
120 struct ethtool_link_ksettings *cmd)
121{
122 struct nicvf *nic = netdev_priv(netdev);
123 u32 supported, advertising;
124
125 supported = 0;
126 advertising = 0;
127
128 if (!nic->link_up) {
129 cmd->base.duplex = DUPLEX_UNKNOWN;
130 cmd->base.speed = SPEED_UNKNOWN;
131 return 0;
132 }
133
134 switch (nic->speed) {
135 case SPEED_1000:
136 cmd->base.port = PORT_MII | PORT_TP;
137 cmd->base.autoneg = AUTONEG_ENABLE;
138 supported |= SUPPORTED_MII | SUPPORTED_TP;
139 supported |= SUPPORTED_1000baseT_Full |
140 SUPPORTED_1000baseT_Half |
141 SUPPORTED_100baseT_Full |
142 SUPPORTED_100baseT_Half |
143 SUPPORTED_10baseT_Full |
144 SUPPORTED_10baseT_Half;
145 supported |= SUPPORTED_Autoneg;
146 advertising |= ADVERTISED_1000baseT_Full |
147 ADVERTISED_1000baseT_Half |
148 ADVERTISED_100baseT_Full |
149 ADVERTISED_100baseT_Half |
150 ADVERTISED_10baseT_Full |
151 ADVERTISED_10baseT_Half;
152 break;
153 case SPEED_10000:
154 if (nic->mac_type == BGX_MODE_RXAUI) {
155 cmd->base.port = PORT_TP;
156 supported |= SUPPORTED_TP;
157 } else {
158 cmd->base.port = PORT_FIBRE;
159 supported |= SUPPORTED_FIBRE;
160 }
161 cmd->base.autoneg = AUTONEG_DISABLE;
162 supported |= SUPPORTED_10000baseT_Full;
163 break;
164 case SPEED_40000:
165 cmd->base.port = PORT_FIBRE;
166 cmd->base.autoneg = AUTONEG_DISABLE;
167 supported |= SUPPORTED_FIBRE;
168 supported |= SUPPORTED_40000baseCR4_Full;
169 break;
170 }
171 cmd->base.duplex = nic->duplex;
172 cmd->base.speed = nic->speed;
173
174 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
175 supported);
176 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
177 advertising);
178
179 return 0;
180}
181
182static u32 nicvf_get_link(struct net_device *netdev)
183{
184 struct nicvf *nic = netdev_priv(netdev);
185
186 return nic->link_up;
187}
188
189static void nicvf_get_drvinfo(struct net_device *netdev,
190 struct ethtool_drvinfo *info)
191{
192 struct nicvf *nic = netdev_priv(netdev);
193
194 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
195 strlcpy(info->bus_info, pci_name(nic->pdev), sizeof(info->bus_info));
196}
197
198static u32 nicvf_get_msglevel(struct net_device *netdev)
199{
200 struct nicvf *nic = netdev_priv(netdev);
201
202 return nic->msg_enable;
203}
204
205static void nicvf_set_msglevel(struct net_device *netdev, u32 lvl)
206{
207 struct nicvf *nic = netdev_priv(netdev);
208
209 nic->msg_enable = lvl;
210}
211
212static void nicvf_get_qset_strings(struct nicvf *nic, u8 **data, int qset)
213{
214 int stats, qidx;
215 int start_qidx = qset * MAX_RCV_QUEUES_PER_QS;
216
217 for (qidx = 0; qidx < nic->qs->rq_cnt; qidx++) {
218 for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
219 sprintf(*data, "rxq%d: %s", qidx + start_qidx,
220 nicvf_queue_stats[stats].name);
221 *data += ETH_GSTRING_LEN;
222 }
223 }
224
225 for (qidx = 0; qidx < nic->qs->sq_cnt; qidx++) {
226 for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
227 sprintf(*data, "txq%d: %s", qidx + start_qidx,
228 nicvf_queue_stats[stats].name);
229 *data += ETH_GSTRING_LEN;
230 }
231 }
232}
233
234static void nicvf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
235{
236 struct nicvf *nic = netdev_priv(netdev);
237 int stats;
238 int sqs;
239
240 if (sset != ETH_SS_STATS)
241 return;
242
243 for (stats = 0; stats < nicvf_n_hw_stats; stats++) {
244 memcpy(data, nicvf_hw_stats[stats].name, ETH_GSTRING_LEN);
245 data += ETH_GSTRING_LEN;
246 }
247
248 for (stats = 0; stats < nicvf_n_drv_stats; stats++) {
249 memcpy(data, nicvf_drv_stats[stats].name, ETH_GSTRING_LEN);
250 data += ETH_GSTRING_LEN;
251 }
252
253 nicvf_get_qset_strings(nic, &data, 0);
254
255 for (sqs = 0; sqs < nic->sqs_count; sqs++) {
256 if (!nic->snicvf[sqs])
257 continue;
258 nicvf_get_qset_strings(nic->snicvf[sqs], &data, sqs + 1);
259 }
260
261 for (stats = 0; stats < BGX_RX_STATS_COUNT; stats++) {
262 sprintf(data, "bgx_rxstat%d: ", stats);
263 data += ETH_GSTRING_LEN;
264 }
265
266 for (stats = 0; stats < BGX_TX_STATS_COUNT; stats++) {
267 sprintf(data, "bgx_txstat%d: ", stats);
268 data += ETH_GSTRING_LEN;
269 }
270}
271
272static int nicvf_get_sset_count(struct net_device *netdev, int sset)
273{
274 struct nicvf *nic = netdev_priv(netdev);
275 int qstats_count;
276 int sqs;
277
278 if (sset != ETH_SS_STATS)
279 return -EINVAL;
280
281 qstats_count = nicvf_n_queue_stats *
282 (nic->qs->rq_cnt + nic->qs->sq_cnt);
283 for (sqs = 0; sqs < nic->sqs_count; sqs++) {
284 struct nicvf *snic;
285
286 snic = nic->snicvf[sqs];
287 if (!snic)
288 continue;
289 qstats_count += nicvf_n_queue_stats *
290 (snic->qs->rq_cnt + snic->qs->sq_cnt);
291 }
292
293 return nicvf_n_hw_stats + nicvf_n_drv_stats +
294 qstats_count +
295 BGX_RX_STATS_COUNT + BGX_TX_STATS_COUNT;
296}
297
298static void nicvf_get_qset_stats(struct nicvf *nic,
299 struct ethtool_stats *stats, u64 **data)
300{
301 int stat, qidx;
302
303 if (!nic)
304 return;
305
306 for (qidx = 0; qidx < nic->qs->rq_cnt; qidx++) {
307 nicvf_update_rq_stats(nic, qidx);
308 for (stat = 0; stat < nicvf_n_queue_stats; stat++)
309 *((*data)++) = ((u64 *)&nic->qs->rq[qidx].stats)
310 [nicvf_queue_stats[stat].index];
311 }
312
313 for (qidx = 0; qidx < nic->qs->sq_cnt; qidx++) {
314 nicvf_update_sq_stats(nic, qidx);
315 for (stat = 0; stat < nicvf_n_queue_stats; stat++)
316 *((*data)++) = ((u64 *)&nic->qs->sq[qidx].stats)
317 [nicvf_queue_stats[stat].index];
318 }
319}
320
321static void nicvf_get_ethtool_stats(struct net_device *netdev,
322 struct ethtool_stats *stats, u64 *data)
323{
324 struct nicvf *nic = netdev_priv(netdev);
325 int stat, tmp_stats;
326 int sqs, cpu;
327
328 nicvf_update_stats(nic);
329
330
331 nicvf_update_lmac_stats(nic);
332
333 for (stat = 0; stat < nicvf_n_hw_stats; stat++)
334 *(data++) = ((u64 *)&nic->hw_stats)
335 [nicvf_hw_stats[stat].index];
336 for (stat = 0; stat < nicvf_n_drv_stats; stat++) {
337 tmp_stats = 0;
338 for_each_possible_cpu(cpu)
339 tmp_stats += ((u64 *)per_cpu_ptr(nic->drv_stats, cpu))
340 [nicvf_drv_stats[stat].index];
341 *(data++) = tmp_stats;
342 }
343
344 nicvf_get_qset_stats(nic, stats, &data);
345
346 for (sqs = 0; sqs < nic->sqs_count; sqs++) {
347 if (!nic->snicvf[sqs])
348 continue;
349 nicvf_get_qset_stats(nic->snicvf[sqs], stats, &data);
350 }
351
352 for (stat = 0; stat < BGX_RX_STATS_COUNT; stat++)
353 *(data++) = nic->bgx_stats.rx_stats[stat];
354 for (stat = 0; stat < BGX_TX_STATS_COUNT; stat++)
355 *(data++) = nic->bgx_stats.tx_stats[stat];
356}
357
358static int nicvf_get_regs_len(struct net_device *dev)
359{
360 return sizeof(u64) * NIC_VF_REG_COUNT;
361}
362
363static void nicvf_get_regs(struct net_device *dev,
364 struct ethtool_regs *regs, void *reg)
365{
366 struct nicvf *nic = netdev_priv(dev);
367 u64 *p = (u64 *)reg;
368 u64 reg_offset;
369 int mbox, key, stat, q;
370 int i = 0;
371
372 regs->version = 0;
373 memset(p, 0, NIC_VF_REG_COUNT);
374
375 p[i++] = nicvf_reg_read(nic, NIC_VNIC_CFG);
376
377 for (mbox = 0; mbox < NIC_PF_VF_MAILBOX_SIZE; mbox++)
378 p[i++] = nicvf_reg_read(nic,
379 NIC_VF_PF_MAILBOX_0_1 | (mbox << 3));
380
381 p[i++] = nicvf_reg_read(nic, NIC_VF_INT);
382 p[i++] = nicvf_reg_read(nic, NIC_VF_INT_W1S);
383 p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1C);
384 p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1S);
385 p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG);
386
387 for (key = 0; key < RSS_HASH_KEY_SIZE; key++)
388 p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_KEY_0_4 | (key << 3));
389
390
391 for (stat = 0; stat < TX_STATS_ENUM_LAST; stat++)
392 p[i++] = nicvf_reg_read(nic,
393 NIC_VNIC_TX_STAT_0_4 | (stat << 3));
394
395 for (i = 0; i < RX_STATS_ENUM_LAST; i++)
396 p[i++] = nicvf_reg_read(nic,
397 NIC_VNIC_RX_STAT_0_13 | (stat << 3));
398
399 p[i++] = nicvf_reg_read(nic, NIC_QSET_RQ_GEN_CFG);
400
401
402 for (q = 0; q < MAX_CMP_QUEUES_PER_QS; q++) {
403 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG, q);
404 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG2, q);
405 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_THRESH, q);
406 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_BASE, q);
407 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_HEAD, q);
408 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_TAIL, q);
409 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DOOR, q);
410 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS, q);
411 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS2, q);
412 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DEBUG, q);
413 }
414
415
416 for (q = 0; q < MAX_RCV_QUEUES_PER_QS; q++) {
417 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RQ_0_7_CFG, q);
418 p[i++] = nicvf_queue_reg_read(nic,
419 NIC_QSET_RQ_0_7_STAT_0_1, q);
420 reg_offset = NIC_QSET_RQ_0_7_STAT_0_1 | (1 << 3);
421 p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
422 }
423
424 for (q = 0; q < MAX_SND_QUEUES_PER_QS; q++) {
425 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CFG, q);
426 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_THRESH, q);
427 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_BASE, q);
428 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_HEAD, q);
429 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_TAIL, q);
430 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DOOR, q);
431 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STATUS, q);
432 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DEBUG, q);
433
434
435
436 p[i++] = 0;
437 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STAT_0_1, q);
438 reg_offset = NIC_QSET_SQ_0_7_STAT_0_1 | (1 << 3);
439 p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
440 }
441
442 for (q = 0; q < MAX_RCV_BUF_DESC_RINGS_PER_QS; q++) {
443 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_CFG, q);
444 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_THRESH, q);
445 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_BASE, q);
446 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_HEAD, q);
447 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_TAIL, q);
448 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_DOOR, q);
449 p[i++] = nicvf_queue_reg_read(nic,
450 NIC_QSET_RBDR_0_1_STATUS0, q);
451 p[i++] = nicvf_queue_reg_read(nic,
452 NIC_QSET_RBDR_0_1_STATUS1, q);
453 reg_offset = NIC_QSET_RBDR_0_1_PREFETCH_STATUS;
454 p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
455 }
456}
457
458static int nicvf_get_coalesce(struct net_device *netdev,
459 struct ethtool_coalesce *cmd,
460 struct kernel_ethtool_coalesce *kernel_coal,
461 struct netlink_ext_ack *extack)
462{
463 struct nicvf *nic = netdev_priv(netdev);
464
465 cmd->rx_coalesce_usecs = nic->cq_coalesce_usecs;
466 return 0;
467}
468
469static void nicvf_get_ringparam(struct net_device *netdev,
470 struct ethtool_ringparam *ring)
471{
472 struct nicvf *nic = netdev_priv(netdev);
473 struct queue_set *qs = nic->qs;
474
475 ring->rx_max_pending = MAX_CMP_QUEUE_LEN;
476 ring->rx_pending = qs->cq_len;
477 ring->tx_max_pending = MAX_SND_QUEUE_LEN;
478 ring->tx_pending = qs->sq_len;
479}
480
481static int nicvf_set_ringparam(struct net_device *netdev,
482 struct ethtool_ringparam *ring)
483{
484 struct nicvf *nic = netdev_priv(netdev);
485 struct queue_set *qs = nic->qs;
486 u32 rx_count, tx_count;
487
488
489 if (pass1_silicon(nic->pdev))
490 return -EINVAL;
491
492 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
493 return -EINVAL;
494
495 tx_count = clamp_t(u32, ring->tx_pending,
496 MIN_SND_QUEUE_LEN, MAX_SND_QUEUE_LEN);
497 rx_count = clamp_t(u32, ring->rx_pending,
498 MIN_CMP_QUEUE_LEN, MAX_CMP_QUEUE_LEN);
499
500 if ((tx_count == qs->sq_len) && (rx_count == qs->cq_len))
501 return 0;
502
503
504 qs->sq_len = rounddown_pow_of_two(tx_count);
505 qs->cq_len = rounddown_pow_of_two(rx_count);
506
507 if (netif_running(netdev)) {
508 nicvf_stop(netdev);
509 nicvf_open(netdev);
510 }
511
512 return 0;
513}
514
515static int nicvf_get_rss_hash_opts(struct nicvf *nic,
516 struct ethtool_rxnfc *info)
517{
518 info->data = 0;
519
520 switch (info->flow_type) {
521 case TCP_V4_FLOW:
522 case TCP_V6_FLOW:
523 case UDP_V4_FLOW:
524 case UDP_V6_FLOW:
525 case SCTP_V4_FLOW:
526 case SCTP_V6_FLOW:
527 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
528 fallthrough;
529 case IPV4_FLOW:
530 case IPV6_FLOW:
531 info->data |= RXH_IP_SRC | RXH_IP_DST;
532 break;
533 default:
534 return -EINVAL;
535 }
536
537 return 0;
538}
539
540static int nicvf_get_rxnfc(struct net_device *dev,
541 struct ethtool_rxnfc *info, u32 *rules)
542{
543 struct nicvf *nic = netdev_priv(dev);
544 int ret = -EOPNOTSUPP;
545
546 switch (info->cmd) {
547 case ETHTOOL_GRXRINGS:
548 info->data = nic->rx_queues;
549 ret = 0;
550 break;
551 case ETHTOOL_GRXFH:
552 return nicvf_get_rss_hash_opts(nic, info);
553 default:
554 break;
555 }
556 return ret;
557}
558
559static int nicvf_set_rss_hash_opts(struct nicvf *nic,
560 struct ethtool_rxnfc *info)
561{
562 struct nicvf_rss_info *rss = &nic->rss_info;
563 u64 rss_cfg = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG);
564
565 if (!rss->enable)
566 netdev_err(nic->netdev,
567 "RSS is disabled, hash cannot be set\n");
568
569 netdev_info(nic->netdev, "Set RSS flow type = %d, data = %lld\n",
570 info->flow_type, info->data);
571
572 if (!(info->data & RXH_IP_SRC) || !(info->data & RXH_IP_DST))
573 return -EINVAL;
574
575 switch (info->flow_type) {
576 case TCP_V4_FLOW:
577 case TCP_V6_FLOW:
578 switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
579 case 0:
580 rss_cfg &= ~(1ULL << RSS_HASH_TCP);
581 break;
582 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
583 rss_cfg |= (1ULL << RSS_HASH_TCP);
584 break;
585 default:
586 return -EINVAL;
587 }
588 break;
589 case UDP_V4_FLOW:
590 case UDP_V6_FLOW:
591 switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
592 case 0:
593 rss_cfg &= ~(1ULL << RSS_HASH_UDP);
594 break;
595 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
596 rss_cfg |= (1ULL << RSS_HASH_UDP);
597 break;
598 default:
599 return -EINVAL;
600 }
601 break;
602 case SCTP_V4_FLOW:
603 case SCTP_V6_FLOW:
604 switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
605 case 0:
606 rss_cfg &= ~(1ULL << RSS_HASH_L4ETC);
607 break;
608 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
609 rss_cfg |= (1ULL << RSS_HASH_L4ETC);
610 break;
611 default:
612 return -EINVAL;
613 }
614 break;
615 case IPV4_FLOW:
616 case IPV6_FLOW:
617 rss_cfg = RSS_HASH_IP;
618 break;
619 default:
620 return -EINVAL;
621 }
622
623 nicvf_reg_write(nic, NIC_VNIC_RSS_CFG, rss_cfg);
624 return 0;
625}
626
627static int nicvf_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info)
628{
629 struct nicvf *nic = netdev_priv(dev);
630
631 switch (info->cmd) {
632 case ETHTOOL_SRXFH:
633 return nicvf_set_rss_hash_opts(nic, info);
634 default:
635 break;
636 }
637 return -EOPNOTSUPP;
638}
639
640static u32 nicvf_get_rxfh_key_size(struct net_device *netdev)
641{
642 return RSS_HASH_KEY_SIZE * sizeof(u64);
643}
644
645static u32 nicvf_get_rxfh_indir_size(struct net_device *dev)
646{
647 struct nicvf *nic = netdev_priv(dev);
648
649 return nic->rss_info.rss_size;
650}
651
652static int nicvf_get_rxfh(struct net_device *dev, u32 *indir, u8 *hkey,
653 u8 *hfunc)
654{
655 struct nicvf *nic = netdev_priv(dev);
656 struct nicvf_rss_info *rss = &nic->rss_info;
657 int idx;
658
659 if (indir) {
660 for (idx = 0; idx < rss->rss_size; idx++)
661 indir[idx] = rss->ind_tbl[idx];
662 }
663
664 if (hkey)
665 memcpy(hkey, rss->key, RSS_HASH_KEY_SIZE * sizeof(u64));
666
667 if (hfunc)
668 *hfunc = ETH_RSS_HASH_TOP;
669
670 return 0;
671}
672
673static int nicvf_set_rxfh(struct net_device *dev, const u32 *indir,
674 const u8 *hkey, const u8 hfunc)
675{
676 struct nicvf *nic = netdev_priv(dev);
677 struct nicvf_rss_info *rss = &nic->rss_info;
678 int idx;
679
680 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
681 return -EOPNOTSUPP;
682
683 if (!rss->enable) {
684 netdev_err(nic->netdev,
685 "RSS is disabled, cannot change settings\n");
686 return -EIO;
687 }
688
689 if (indir) {
690 for (idx = 0; idx < rss->rss_size; idx++)
691 rss->ind_tbl[idx] = indir[idx];
692 }
693
694 if (hkey) {
695 memcpy(rss->key, hkey, RSS_HASH_KEY_SIZE * sizeof(u64));
696 nicvf_set_rss_key(nic);
697 }
698
699 nicvf_config_rss(nic);
700 return 0;
701}
702
703
704static void nicvf_get_channels(struct net_device *dev,
705 struct ethtool_channels *channel)
706{
707 struct nicvf *nic = netdev_priv(dev);
708
709 memset(channel, 0, sizeof(*channel));
710
711 channel->max_rx = nic->max_queues;
712 channel->max_tx = nic->max_queues;
713
714 channel->rx_count = nic->rx_queues;
715 channel->tx_count = nic->tx_queues;
716}
717
718
719static int nicvf_set_channels(struct net_device *dev,
720 struct ethtool_channels *channel)
721{
722 struct nicvf *nic = netdev_priv(dev);
723 int err = 0;
724 bool if_up = netif_running(dev);
725 u8 cqcount, txq_count;
726
727 if (!channel->rx_count || !channel->tx_count)
728 return -EINVAL;
729 if (channel->rx_count > nic->max_queues)
730 return -EINVAL;
731 if (channel->tx_count > nic->max_queues)
732 return -EINVAL;
733
734 if (nic->xdp_prog &&
735 ((channel->tx_count + channel->rx_count) > nic->max_queues)) {
736 netdev_err(nic->netdev,
737 "XDP mode, RXQs + TXQs > Max %d\n",
738 nic->max_queues);
739 return -EINVAL;
740 }
741
742 if (if_up)
743 nicvf_stop(dev);
744
745 nic->rx_queues = channel->rx_count;
746 nic->tx_queues = channel->tx_count;
747 if (!nic->xdp_prog)
748 nic->xdp_tx_queues = 0;
749 else
750 nic->xdp_tx_queues = channel->rx_count;
751
752 txq_count = nic->xdp_tx_queues + nic->tx_queues;
753 cqcount = max(nic->rx_queues, txq_count);
754
755 if (cqcount > MAX_CMP_QUEUES_PER_QS) {
756 nic->sqs_count = roundup(cqcount, MAX_CMP_QUEUES_PER_QS);
757 nic->sqs_count = (nic->sqs_count / MAX_CMP_QUEUES_PER_QS) - 1;
758 } else {
759 nic->sqs_count = 0;
760 }
761
762 nic->qs->rq_cnt = min_t(u8, nic->rx_queues, MAX_RCV_QUEUES_PER_QS);
763 nic->qs->sq_cnt = min_t(u8, txq_count, MAX_SND_QUEUES_PER_QS);
764 nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);
765
766 err = nicvf_set_real_num_queues(dev, nic->tx_queues, nic->rx_queues);
767 if (err)
768 return err;
769
770 if (if_up)
771 nicvf_open(dev);
772
773 netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
774 nic->tx_queues, nic->rx_queues);
775
776 return err;
777}
778
779static void nicvf_get_pauseparam(struct net_device *dev,
780 struct ethtool_pauseparam *pause)
781{
782 struct nicvf *nic = netdev_priv(dev);
783 union nic_mbx mbx = {};
784
785
786 if ((nic->mac_type == BGX_MODE_SGMII) ||
787 (nic->mac_type == BGX_MODE_QSGMII) ||
788 (nic->mac_type == BGX_MODE_RGMII))
789 return;
790
791 mbx.pfc.msg = NIC_MBOX_MSG_PFC;
792 mbx.pfc.get = 1;
793 if (!nicvf_send_msg_to_pf(nic, &mbx)) {
794 pause->autoneg = nic->pfc.autoneg;
795 pause->rx_pause = nic->pfc.fc_rx;
796 pause->tx_pause = nic->pfc.fc_tx;
797 }
798}
799
800static int nicvf_set_pauseparam(struct net_device *dev,
801 struct ethtool_pauseparam *pause)
802{
803 struct nicvf *nic = netdev_priv(dev);
804 union nic_mbx mbx = {};
805
806
807 if ((nic->mac_type == BGX_MODE_SGMII) ||
808 (nic->mac_type == BGX_MODE_QSGMII) ||
809 (nic->mac_type == BGX_MODE_RGMII))
810 return -EOPNOTSUPP;
811
812 if (pause->autoneg)
813 return -EOPNOTSUPP;
814
815 mbx.pfc.msg = NIC_MBOX_MSG_PFC;
816 mbx.pfc.get = 0;
817 mbx.pfc.fc_rx = pause->rx_pause;
818 mbx.pfc.fc_tx = pause->tx_pause;
819 if (nicvf_send_msg_to_pf(nic, &mbx))
820 return -EAGAIN;
821
822 nic->pfc.fc_rx = pause->rx_pause;
823 nic->pfc.fc_tx = pause->tx_pause;
824
825 return 0;
826}
827
828static int nicvf_get_ts_info(struct net_device *netdev,
829 struct ethtool_ts_info *info)
830{
831 struct nicvf *nic = netdev_priv(netdev);
832
833 if (!nic->ptp_clock)
834 return ethtool_op_get_ts_info(netdev, info);
835
836 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
837 SOF_TIMESTAMPING_RX_SOFTWARE |
838 SOF_TIMESTAMPING_SOFTWARE |
839 SOF_TIMESTAMPING_TX_HARDWARE |
840 SOF_TIMESTAMPING_RX_HARDWARE |
841 SOF_TIMESTAMPING_RAW_HARDWARE;
842
843 info->phc_index = cavium_ptp_clock_index(nic->ptp_clock);
844
845 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
846
847 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
848 (1 << HWTSTAMP_FILTER_ALL);
849
850 return 0;
851}
852
853static const struct ethtool_ops nicvf_ethtool_ops = {
854 .get_link = nicvf_get_link,
855 .get_drvinfo = nicvf_get_drvinfo,
856 .get_msglevel = nicvf_get_msglevel,
857 .set_msglevel = nicvf_set_msglevel,
858 .get_strings = nicvf_get_strings,
859 .get_sset_count = nicvf_get_sset_count,
860 .get_ethtool_stats = nicvf_get_ethtool_stats,
861 .get_regs_len = nicvf_get_regs_len,
862 .get_regs = nicvf_get_regs,
863 .get_coalesce = nicvf_get_coalesce,
864 .get_ringparam = nicvf_get_ringparam,
865 .set_ringparam = nicvf_set_ringparam,
866 .get_rxnfc = nicvf_get_rxnfc,
867 .set_rxnfc = nicvf_set_rxnfc,
868 .get_rxfh_key_size = nicvf_get_rxfh_key_size,
869 .get_rxfh_indir_size = nicvf_get_rxfh_indir_size,
870 .get_rxfh = nicvf_get_rxfh,
871 .set_rxfh = nicvf_set_rxfh,
872 .get_channels = nicvf_get_channels,
873 .set_channels = nicvf_set_channels,
874 .get_pauseparam = nicvf_get_pauseparam,
875 .set_pauseparam = nicvf_set_pauseparam,
876 .get_ts_info = nicvf_get_ts_info,
877 .get_link_ksettings = nicvf_get_link_ksettings,
878};
879
880void nicvf_set_ethtool_ops(struct net_device *netdev)
881{
882 netdev->ethtool_ops = &nicvf_ethtool_ops;
883}
884
