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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2015 Cavium, Inc.
4 */
5
6/* ETHTOOL Support for VNIC_VF Device*/
7
8#include <linux/pci.h>
9#include <linux/net_tstamp.h>
10
11#include "nic_reg.h"
12#include "nic.h"
13#include "nicvf_queues.h"
14#include "q_struct.h"
15#include "thunder_bgx.h"
16#include "../common/cavium_ptp.h"
17
18#define DRV_NAME "nicvf"
19#define DRV_VERSION "1.0"
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->version, DRV_VERSION, sizeof(info->version));
196 strlcpy(info->bus_info, pci_name(nic->pdev), sizeof(info->bus_info));
197}
198
199static u32 nicvf_get_msglevel(struct net_device *netdev)
200{
201 struct nicvf *nic = netdev_priv(netdev);
202
203 return nic->msg_enable;
204}
205
206static void nicvf_set_msglevel(struct net_device *netdev, u32 lvl)
207{
208 struct nicvf *nic = netdev_priv(netdev);
209
210 nic->msg_enable = lvl;
211}
212
213static void nicvf_get_qset_strings(struct nicvf *nic, u8 **data, int qset)
214{
215 int stats, qidx;
216 int start_qidx = qset * MAX_RCV_QUEUES_PER_QS;
217
218 for (qidx = 0; qidx < nic->qs->rq_cnt; qidx++) {
219 for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
220 sprintf(*data, "rxq%d: %s", qidx + start_qidx,
221 nicvf_queue_stats[stats].name);
222 *data += ETH_GSTRING_LEN;
223 }
224 }
225
226 for (qidx = 0; qidx < nic->qs->sq_cnt; qidx++) {
227 for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
228 sprintf(*data, "txq%d: %s", qidx + start_qidx,
229 nicvf_queue_stats[stats].name);
230 *data += ETH_GSTRING_LEN;
231 }
232 }
233}
234
235static void nicvf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
236{
237 struct nicvf *nic = netdev_priv(netdev);
238 int stats;
239 int sqs;
240
241 if (sset != ETH_SS_STATS)
242 return;
243
244 for (stats = 0; stats < nicvf_n_hw_stats; stats++) {
245 memcpy(data, nicvf_hw_stats[stats].name, ETH_GSTRING_LEN);
246 data += ETH_GSTRING_LEN;
247 }
248
249 for (stats = 0; stats < nicvf_n_drv_stats; stats++) {
250 memcpy(data, nicvf_drv_stats[stats].name, ETH_GSTRING_LEN);
251 data += ETH_GSTRING_LEN;
252 }
253
254 nicvf_get_qset_strings(nic, &data, 0);
255
256 for (sqs = 0; sqs < nic->sqs_count; sqs++) {
257 if (!nic->snicvf[sqs])
258 continue;
259 nicvf_get_qset_strings(nic->snicvf[sqs], &data, sqs + 1);
260 }
261
262 for (stats = 0; stats < BGX_RX_STATS_COUNT; stats++) {
263 sprintf(data, "bgx_rxstat%d: ", stats);
264 data += ETH_GSTRING_LEN;
265 }
266
267 for (stats = 0; stats < BGX_TX_STATS_COUNT; stats++) {
268 sprintf(data, "bgx_txstat%d: ", stats);
269 data += ETH_GSTRING_LEN;
270 }
271}
272
273static int nicvf_get_sset_count(struct net_device *netdev, int sset)
274{
275 struct nicvf *nic = netdev_priv(netdev);
276 int qstats_count;
277 int sqs;
278
279 if (sset != ETH_SS_STATS)
280 return -EINVAL;
281
282 qstats_count = nicvf_n_queue_stats *
283 (nic->qs->rq_cnt + nic->qs->sq_cnt);
284 for (sqs = 0; sqs < nic->sqs_count; sqs++) {
285 struct nicvf *snic;
286
287 snic = nic->snicvf[sqs];
288 if (!snic)
289 continue;
290 qstats_count += nicvf_n_queue_stats *
291 (snic->qs->rq_cnt + snic->qs->sq_cnt);
292 }
293
294 return nicvf_n_hw_stats + nicvf_n_drv_stats +
295 qstats_count +
296 BGX_RX_STATS_COUNT + BGX_TX_STATS_COUNT;
297}
298
299static void nicvf_get_qset_stats(struct nicvf *nic,
300 struct ethtool_stats *stats, u64 **data)
301{
302 int stat, qidx;
303
304 if (!nic)
305 return;
306
307 for (qidx = 0; qidx < nic->qs->rq_cnt; qidx++) {
308 nicvf_update_rq_stats(nic, qidx);
309 for (stat = 0; stat < nicvf_n_queue_stats; stat++)
310 *((*data)++) = ((u64 *)&nic->qs->rq[qidx].stats)
311 [nicvf_queue_stats[stat].index];
312 }
313
314 for (qidx = 0; qidx < nic->qs->sq_cnt; qidx++) {
315 nicvf_update_sq_stats(nic, qidx);
316 for (stat = 0; stat < nicvf_n_queue_stats; stat++)
317 *((*data)++) = ((u64 *)&nic->qs->sq[qidx].stats)
318 [nicvf_queue_stats[stat].index];
319 }
320}
321
322static void nicvf_get_ethtool_stats(struct net_device *netdev,
323 struct ethtool_stats *stats, u64 *data)
324{
325 struct nicvf *nic = netdev_priv(netdev);
326 int stat, tmp_stats;
327 int sqs, cpu;
328
329 nicvf_update_stats(nic);
330
331 /* Update LMAC stats */
332 nicvf_update_lmac_stats(nic);
333
334 for (stat = 0; stat < nicvf_n_hw_stats; stat++)
335 *(data++) = ((u64 *)&nic->hw_stats)
336 [nicvf_hw_stats[stat].index];
337 for (stat = 0; stat < nicvf_n_drv_stats; stat++) {
338 tmp_stats = 0;
339 for_each_possible_cpu(cpu)
340 tmp_stats += ((u64 *)per_cpu_ptr(nic->drv_stats, cpu))
341 [nicvf_drv_stats[stat].index];
342 *(data++) = tmp_stats;
343 }
344
345 nicvf_get_qset_stats(nic, stats, &data);
346
347 for (sqs = 0; sqs < nic->sqs_count; sqs++) {
348 if (!nic->snicvf[sqs])
349 continue;
350 nicvf_get_qset_stats(nic->snicvf[sqs], stats, &data);
351 }
352
353 for (stat = 0; stat < BGX_RX_STATS_COUNT; stat++)
354 *(data++) = nic->bgx_stats.rx_stats[stat];
355 for (stat = 0; stat < BGX_TX_STATS_COUNT; stat++)
356 *(data++) = nic->bgx_stats.tx_stats[stat];
357}
358
359static int nicvf_get_regs_len(struct net_device *dev)
360{
361 return sizeof(u64) * NIC_VF_REG_COUNT;
362}
363
364static void nicvf_get_regs(struct net_device *dev,
365 struct ethtool_regs *regs, void *reg)
366{
367 struct nicvf *nic = netdev_priv(dev);
368 u64 *p = (u64 *)reg;
369 u64 reg_offset;
370 int mbox, key, stat, q;
371 int i = 0;
372
373 regs->version = 0;
374 memset(p, 0, NIC_VF_REG_COUNT);
375
376 p[i++] = nicvf_reg_read(nic, NIC_VNIC_CFG);
377 /* Mailbox registers */
378 for (mbox = 0; mbox < NIC_PF_VF_MAILBOX_SIZE; mbox++)
379 p[i++] = nicvf_reg_read(nic,
380 NIC_VF_PF_MAILBOX_0_1 | (mbox << 3));
381
382 p[i++] = nicvf_reg_read(nic, NIC_VF_INT);
383 p[i++] = nicvf_reg_read(nic, NIC_VF_INT_W1S);
384 p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1C);
385 p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1S);
386 p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG);
387
388 for (key = 0; key < RSS_HASH_KEY_SIZE; key++)
389 p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_KEY_0_4 | (key << 3));
390
391 /* Tx/Rx statistics */
392 for (stat = 0; stat < TX_STATS_ENUM_LAST; stat++)
393 p[i++] = nicvf_reg_read(nic,
394 NIC_VNIC_TX_STAT_0_4 | (stat << 3));
395
396 for (i = 0; i < RX_STATS_ENUM_LAST; i++)
397 p[i++] = nicvf_reg_read(nic,
398 NIC_VNIC_RX_STAT_0_13 | (stat << 3));
399
400 p[i++] = nicvf_reg_read(nic, NIC_QSET_RQ_GEN_CFG);
401
402 /* All completion queue's registers */
403 for (q = 0; q < MAX_CMP_QUEUES_PER_QS; q++) {
404 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG, q);
405 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG2, q);
406 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_THRESH, q);
407 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_BASE, q);
408 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_HEAD, q);
409 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_TAIL, q);
410 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DOOR, q);
411 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS, q);
412 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS2, q);
413 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DEBUG, q);
414 }
415
416 /* All receive queue's registers */
417 for (q = 0; q < MAX_RCV_QUEUES_PER_QS; q++) {
418 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RQ_0_7_CFG, q);
419 p[i++] = nicvf_queue_reg_read(nic,
420 NIC_QSET_RQ_0_7_STAT_0_1, q);
421 reg_offset = NIC_QSET_RQ_0_7_STAT_0_1 | (1 << 3);
422 p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
423 }
424
425 for (q = 0; q < MAX_SND_QUEUES_PER_QS; q++) {
426 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CFG, q);
427 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_THRESH, q);
428 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_BASE, q);
429 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_HEAD, q);
430 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_TAIL, q);
431 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DOOR, q);
432 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STATUS, q);
433 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DEBUG, q);
434 /* Padding, was NIC_QSET_SQ_0_7_CNM_CHG, which
435 * produces bus errors when read
436 */
437 p[i++] = 0;
438 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STAT_0_1, q);
439 reg_offset = NIC_QSET_SQ_0_7_STAT_0_1 | (1 << 3);
440 p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
441 }
442
443 for (q = 0; q < MAX_RCV_BUF_DESC_RINGS_PER_QS; q++) {
444 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_CFG, q);
445 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_THRESH, q);
446 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_BASE, q);
447 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_HEAD, q);
448 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_TAIL, q);
449 p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_DOOR, q);
450 p[i++] = nicvf_queue_reg_read(nic,
451 NIC_QSET_RBDR_0_1_STATUS0, q);
452 p[i++] = nicvf_queue_reg_read(nic,
453 NIC_QSET_RBDR_0_1_STATUS1, q);
454 reg_offset = NIC_QSET_RBDR_0_1_PREFETCH_STATUS;
455 p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
456 }
457}
458
459static int nicvf_get_coalesce(struct net_device *netdev,
460 struct ethtool_coalesce *cmd)
461{
462 struct nicvf *nic = netdev_priv(netdev);
463
464 cmd->rx_coalesce_usecs = nic->cq_coalesce_usecs;
465 return 0;
466}
467
468static void nicvf_get_ringparam(struct net_device *netdev,
469 struct ethtool_ringparam *ring)
470{
471 struct nicvf *nic = netdev_priv(netdev);
472 struct queue_set *qs = nic->qs;
473
474 ring->rx_max_pending = MAX_CMP_QUEUE_LEN;
475 ring->rx_pending = qs->cq_len;
476 ring->tx_max_pending = MAX_SND_QUEUE_LEN;
477 ring->tx_pending = qs->sq_len;
478}
479
480static int nicvf_set_ringparam(struct net_device *netdev,
481 struct ethtool_ringparam *ring)
482{
483 struct nicvf *nic = netdev_priv(netdev);
484 struct queue_set *qs = nic->qs;
485 u32 rx_count, tx_count;
486
487 /* Due to HW errata this is not supported on T88 pass 1.x silicon */
488 if (pass1_silicon(nic->pdev))
489 return -EINVAL;
490
491 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
492 return -EINVAL;
493
494 tx_count = clamp_t(u32, ring->tx_pending,
495 MIN_SND_QUEUE_LEN, MAX_SND_QUEUE_LEN);
496 rx_count = clamp_t(u32, ring->rx_pending,
497 MIN_CMP_QUEUE_LEN, MAX_CMP_QUEUE_LEN);
498
499 if ((tx_count == qs->sq_len) && (rx_count == qs->cq_len))
500 return 0;
501
502 /* Permitted lengths are 1K, 2K, 4K, 8K, 16K, 32K, 64K */
503 qs->sq_len = rounddown_pow_of_two(tx_count);
504 qs->cq_len = rounddown_pow_of_two(rx_count);
505
506 if (netif_running(netdev)) {
507 nicvf_stop(netdev);
508 nicvf_open(netdev);
509 }
510
511 return 0;
512}
513
514static int nicvf_get_rss_hash_opts(struct nicvf *nic,
515 struct ethtool_rxnfc *info)
516{
517 info->data = 0;
518
519 switch (info->flow_type) {
520 case TCP_V4_FLOW:
521 case TCP_V6_FLOW:
522 case UDP_V4_FLOW:
523 case UDP_V6_FLOW:
524 case SCTP_V4_FLOW:
525 case SCTP_V6_FLOW:
526 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
527 /* Fall through */
528 case IPV4_FLOW:
529 case IPV6_FLOW:
530 info->data |= RXH_IP_SRC | RXH_IP_DST;
531 break;
532 default:
533 return -EINVAL;
534 }
535
536 return 0;
537}
538
539static int nicvf_get_rxnfc(struct net_device *dev,
540 struct ethtool_rxnfc *info, u32 *rules)
541{
542 struct nicvf *nic = netdev_priv(dev);
543 int ret = -EOPNOTSUPP;
544
545 switch (info->cmd) {
546 case ETHTOOL_GRXRINGS:
547 info->data = nic->rx_queues;
548 ret = 0;
549 break;
550 case ETHTOOL_GRXFH:
551 return nicvf_get_rss_hash_opts(nic, info);
552 default:
553 break;
554 }
555 return ret;
556}
557
558static int nicvf_set_rss_hash_opts(struct nicvf *nic,
559 struct ethtool_rxnfc *info)
560{
561 struct nicvf_rss_info *rss = &nic->rss_info;
562 u64 rss_cfg = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG);
563
564 if (!rss->enable)
565 netdev_err(nic->netdev,
566 "RSS is disabled, hash cannot be set\n");
567
568 netdev_info(nic->netdev, "Set RSS flow type = %d, data = %lld\n",
569 info->flow_type, info->data);
570
571 if (!(info->data & RXH_IP_SRC) || !(info->data & RXH_IP_DST))
572 return -EINVAL;
573
574 switch (info->flow_type) {
575 case TCP_V4_FLOW:
576 case TCP_V6_FLOW:
577 switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
578 case 0:
579 rss_cfg &= ~(1ULL << RSS_HASH_TCP);
580 break;
581 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
582 rss_cfg |= (1ULL << RSS_HASH_TCP);
583 break;
584 default:
585 return -EINVAL;
586 }
587 break;
588 case UDP_V4_FLOW:
589 case UDP_V6_FLOW:
590 switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
591 case 0:
592 rss_cfg &= ~(1ULL << RSS_HASH_UDP);
593 break;
594 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
595 rss_cfg |= (1ULL << RSS_HASH_UDP);
596 break;
597 default:
598 return -EINVAL;
599 }
600 break;
601 case SCTP_V4_FLOW:
602 case SCTP_V6_FLOW:
603 switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
604 case 0:
605 rss_cfg &= ~(1ULL << RSS_HASH_L4ETC);
606 break;
607 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
608 rss_cfg |= (1ULL << RSS_HASH_L4ETC);
609 break;
610 default:
611 return -EINVAL;
612 }
613 break;
614 case IPV4_FLOW:
615 case IPV6_FLOW:
616 rss_cfg = RSS_HASH_IP;
617 break;
618 default:
619 return -EINVAL;
620 }
621
622 nicvf_reg_write(nic, NIC_VNIC_RSS_CFG, rss_cfg);
623 return 0;
624}
625
626static int nicvf_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info)
627{
628 struct nicvf *nic = netdev_priv(dev);
629
630 switch (info->cmd) {
631 case ETHTOOL_SRXFH:
632 return nicvf_set_rss_hash_opts(nic, info);
633 default:
634 break;
635 }
636 return -EOPNOTSUPP;
637}
638
639static u32 nicvf_get_rxfh_key_size(struct net_device *netdev)
640{
641 return RSS_HASH_KEY_SIZE * sizeof(u64);
642}
643
644static u32 nicvf_get_rxfh_indir_size(struct net_device *dev)
645{
646 struct nicvf *nic = netdev_priv(dev);
647
648 return nic->rss_info.rss_size;
649}
650
651static int nicvf_get_rxfh(struct net_device *dev, u32 *indir, u8 *hkey,
652 u8 *hfunc)
653{
654 struct nicvf *nic = netdev_priv(dev);
655 struct nicvf_rss_info *rss = &nic->rss_info;
656 int idx;
657
658 if (indir) {
659 for (idx = 0; idx < rss->rss_size; idx++)
660 indir[idx] = rss->ind_tbl[idx];
661 }
662
663 if (hkey)
664 memcpy(hkey, rss->key, RSS_HASH_KEY_SIZE * sizeof(u64));
665
666 if (hfunc)
667 *hfunc = ETH_RSS_HASH_TOP;
668
669 return 0;
670}
671
672static int nicvf_set_rxfh(struct net_device *dev, const u32 *indir,
673 const u8 *hkey, const u8 hfunc)
674{
675 struct nicvf *nic = netdev_priv(dev);
676 struct nicvf_rss_info *rss = &nic->rss_info;
677 int idx;
678
679 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
680 return -EOPNOTSUPP;
681
682 if (!rss->enable) {
683 netdev_err(nic->netdev,
684 "RSS is disabled, cannot change settings\n");
685 return -EIO;
686 }
687
688 if (indir) {
689 for (idx = 0; idx < rss->rss_size; idx++)
690 rss->ind_tbl[idx] = indir[idx];
691 }
692
693 if (hkey) {
694 memcpy(rss->key, hkey, RSS_HASH_KEY_SIZE * sizeof(u64));
695 nicvf_set_rss_key(nic);
696 }
697
698 nicvf_config_rss(nic);
699 return 0;
700}
701
702/* Get no of queues device supports and current queue count */
703static void nicvf_get_channels(struct net_device *dev,
704 struct ethtool_channels *channel)
705{
706 struct nicvf *nic = netdev_priv(dev);
707
708 memset(channel, 0, sizeof(*channel));
709
710 channel->max_rx = nic->max_queues;
711 channel->max_tx = nic->max_queues;
712
713 channel->rx_count = nic->rx_queues;
714 channel->tx_count = nic->tx_queues;
715}
716
717/* Set no of Tx, Rx queues to be used */
718static int nicvf_set_channels(struct net_device *dev,
719 struct ethtool_channels *channel)
720{
721 struct nicvf *nic = netdev_priv(dev);
722 int err = 0;
723 bool if_up = netif_running(dev);
724 u8 cqcount, txq_count;
725
726 if (!channel->rx_count || !channel->tx_count)
727 return -EINVAL;
728 if (channel->rx_count > nic->max_queues)
729 return -EINVAL;
730 if (channel->tx_count > nic->max_queues)
731 return -EINVAL;
732
733 if (nic->xdp_prog &&
734 ((channel->tx_count + channel->rx_count) > nic->max_queues)) {
735 netdev_err(nic->netdev,
736 "XDP mode, RXQs + TXQs > Max %d\n",
737 nic->max_queues);
738 return -EINVAL;
739 }
740
741 if (if_up)
742 nicvf_stop(dev);
743
744 nic->rx_queues = channel->rx_count;
745 nic->tx_queues = channel->tx_count;
746 if (!nic->xdp_prog)
747 nic->xdp_tx_queues = 0;
748 else
749 nic->xdp_tx_queues = channel->rx_count;
750
751 txq_count = nic->xdp_tx_queues + nic->tx_queues;
752 cqcount = max(nic->rx_queues, txq_count);
753
754 if (cqcount > MAX_CMP_QUEUES_PER_QS) {
755 nic->sqs_count = roundup(cqcount, MAX_CMP_QUEUES_PER_QS);
756 nic->sqs_count = (nic->sqs_count / MAX_CMP_QUEUES_PER_QS) - 1;
757 } else {
758 nic->sqs_count = 0;
759 }
760
761 nic->qs->rq_cnt = min_t(u8, nic->rx_queues, MAX_RCV_QUEUES_PER_QS);
762 nic->qs->sq_cnt = min_t(u8, txq_count, MAX_SND_QUEUES_PER_QS);
763 nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);
764
765 err = nicvf_set_real_num_queues(dev, nic->tx_queues, nic->rx_queues);
766 if (err)
767 return err;
768
769 if (if_up)
770 nicvf_open(dev);
771
772 netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
773 nic->tx_queues, nic->rx_queues);
774
775 return err;
776}
777
778static void nicvf_get_pauseparam(struct net_device *dev,
779 struct ethtool_pauseparam *pause)
780{
781 struct nicvf *nic = netdev_priv(dev);
782 union nic_mbx mbx = {};
783
784 /* Supported only for 10G/40G interfaces */
785 if ((nic->mac_type == BGX_MODE_SGMII) ||
786 (nic->mac_type == BGX_MODE_QSGMII) ||
787 (nic->mac_type == BGX_MODE_RGMII))
788 return;
789
790 mbx.pfc.msg = NIC_MBOX_MSG_PFC;
791 mbx.pfc.get = 1;
792 if (!nicvf_send_msg_to_pf(nic, &mbx)) {
793 pause->autoneg = nic->pfc.autoneg;
794 pause->rx_pause = nic->pfc.fc_rx;
795 pause->tx_pause = nic->pfc.fc_tx;
796 }
797}
798
799static int nicvf_set_pauseparam(struct net_device *dev,
800 struct ethtool_pauseparam *pause)
801{
802 struct nicvf *nic = netdev_priv(dev);
803 union nic_mbx mbx = {};
804
805 /* Supported only for 10G/40G interfaces */
806 if ((nic->mac_type == BGX_MODE_SGMII) ||
807 (nic->mac_type == BGX_MODE_QSGMII) ||
808 (nic->mac_type == BGX_MODE_RGMII))
809 return -EOPNOTSUPP;
810
811 if (pause->autoneg)
812 return -EOPNOTSUPP;
813
814 mbx.pfc.msg = NIC_MBOX_MSG_PFC;
815 mbx.pfc.get = 0;
816 mbx.pfc.fc_rx = pause->rx_pause;
817 mbx.pfc.fc_tx = pause->tx_pause;
818 if (nicvf_send_msg_to_pf(nic, &mbx))
819 return -EAGAIN;
820
821 nic->pfc.fc_rx = pause->rx_pause;
822 nic->pfc.fc_tx = pause->tx_pause;
823
824 return 0;
825}
826
827static int nicvf_get_ts_info(struct net_device *netdev,
828 struct ethtool_ts_info *info)
829{
830 struct nicvf *nic = netdev_priv(netdev);
831
832 if (!nic->ptp_clock)
833 return ethtool_op_get_ts_info(netdev, info);
834
835 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
836 SOF_TIMESTAMPING_RX_SOFTWARE |
837 SOF_TIMESTAMPING_SOFTWARE |
838 SOF_TIMESTAMPING_TX_HARDWARE |
839 SOF_TIMESTAMPING_RX_HARDWARE |
840 SOF_TIMESTAMPING_RAW_HARDWARE;
841
842 info->phc_index = cavium_ptp_clock_index(nic->ptp_clock);
843
844 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
845
846 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
847 (1 << HWTSTAMP_FILTER_ALL);
848
849 return 0;
850}
851
852static const struct ethtool_ops nicvf_ethtool_ops = {
853 .get_link = nicvf_get_link,
854 .get_drvinfo = nicvf_get_drvinfo,
855 .get_msglevel = nicvf_get_msglevel,
856 .set_msglevel = nicvf_set_msglevel,
857 .get_strings = nicvf_get_strings,
858 .get_sset_count = nicvf_get_sset_count,
859 .get_ethtool_stats = nicvf_get_ethtool_stats,
860 .get_regs_len = nicvf_get_regs_len,
861 .get_regs = nicvf_get_regs,
862 .get_coalesce = nicvf_get_coalesce,
863 .get_ringparam = nicvf_get_ringparam,
864 .set_ringparam = nicvf_set_ringparam,
865 .get_rxnfc = nicvf_get_rxnfc,
866 .set_rxnfc = nicvf_set_rxnfc,
867 .get_rxfh_key_size = nicvf_get_rxfh_key_size,
868 .get_rxfh_indir_size = nicvf_get_rxfh_indir_size,
869 .get_rxfh = nicvf_get_rxfh,
870 .set_rxfh = nicvf_set_rxfh,
871 .get_channels = nicvf_get_channels,
872 .set_channels = nicvf_set_channels,
873 .get_pauseparam = nicvf_get_pauseparam,
874 .set_pauseparam = nicvf_set_pauseparam,
875 .get_ts_info = nicvf_get_ts_info,
876 .get_link_ksettings = nicvf_get_link_ksettings,
877};
878
879void nicvf_set_ethtool_ops(struct net_device *netdev)
880{
881 netdev->ethtool_ops = &nicvf_ethtool_ops;
882}