1 // SPDX-License-Identifier: GPL-2.0
2 /* Marvell RVU Ethernet driver
3 *
4 * Copyright (C) 2020 Marvell.
5 *
6 */
7
8 #include <linux/pci.h>
9 #include <linux/ethtool.h>
10 #include <linux/stddef.h>
11 #include <linux/etherdevice.h>
12 #include <linux/log2.h>
13 #include <linux/net_tstamp.h>
14 #include <linux/linkmode.h>
15
16 #include "otx2_common.h"
17 #include "otx2_ptp.h"
18 #include <cgx_fw_if.h>
19
20 #define DRV_NAME "rvu-nicpf"
21 #define DRV_VF_NAME "rvu-nicvf"
22
23 struct otx2_stat {
24 char name[ETH_GSTRING_LEN];
25 unsigned int index;
26 };
27
28 /* HW device stats */
29 #define OTX2_DEV_STAT(stat) { \
30 .name = #stat, \
31 .index = offsetof(struct otx2_dev_stats, stat) / sizeof(u64), \
32 }
33
34 enum link_mode {
35 OTX2_MODE_SUPPORTED,
36 OTX2_MODE_ADVERTISED
37 };
38
39 static const struct otx2_stat otx2_dev_stats[] = {
40 OTX2_DEV_STAT(rx_ucast_frames),
41 OTX2_DEV_STAT(rx_bcast_frames),
42 OTX2_DEV_STAT(rx_mcast_frames),
43
44 OTX2_DEV_STAT(tx_ucast_frames),
45 OTX2_DEV_STAT(tx_bcast_frames),
46 OTX2_DEV_STAT(tx_mcast_frames),
47 };
48
49 /* Driver level stats */
50 #define OTX2_DRV_STAT(stat) { \
51 .name = #stat, \
52 .index = offsetof(struct otx2_drv_stats, stat) / sizeof(atomic_t), \
53 }
54
55 static const struct otx2_stat otx2_drv_stats[] = {
56 OTX2_DRV_STAT(rx_fcs_errs),
57 OTX2_DRV_STAT(rx_oversize_errs),
58 OTX2_DRV_STAT(rx_undersize_errs),
59 OTX2_DRV_STAT(rx_csum_errs),
60 OTX2_DRV_STAT(rx_len_errs),
61 OTX2_DRV_STAT(rx_other_errs),
62 };
63
64 static const struct otx2_stat otx2_queue_stats[] = {
65 { "bytes", 0 },
66 { "frames", 1 },
67 };
68
69 #define OTX2_FEC_MAX_INDEX 4
70
71 static const unsigned int otx2_n_dev_stats = ARRAY_SIZE(otx2_dev_stats);
72 static const unsigned int otx2_n_drv_stats = ARRAY_SIZE(otx2_drv_stats);
73 static const unsigned int otx2_n_queue_stats = ARRAY_SIZE(otx2_queue_stats);
74
75 static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf);
76
otx2_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * info)77 static void otx2_get_drvinfo(struct net_device *netdev,
78 struct ethtool_drvinfo *info)
79 {
80 struct otx2_nic *pfvf = netdev_priv(netdev);
81
82 strscpy(info->driver, DRV_NAME, sizeof(info->driver));
83 strscpy(info->bus_info, pci_name(pfvf->pdev), sizeof(info->bus_info));
84 }
85
otx2_get_qset_strings(struct otx2_nic * pfvf,u8 ** data,int qset)86 static void otx2_get_qset_strings(struct otx2_nic *pfvf, u8 **data, int qset)
87 {
88 int start_qidx = qset * pfvf->hw.rx_queues;
89 int qidx, stats;
90
91 for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++)
92 for (stats = 0; stats < otx2_n_queue_stats; stats++)
93 ethtool_sprintf(data, "rxq%d: %s", qidx + start_qidx,
94 otx2_queue_stats[stats].name);
95
96 for (qidx = 0; qidx < otx2_get_total_tx_queues(pfvf); qidx++)
97 for (stats = 0; stats < otx2_n_queue_stats; stats++)
98 if (qidx >= pfvf->hw.non_qos_queues)
99 ethtool_sprintf(data, "txq_qos%d: %s",
100 qidx + start_qidx -
101 pfvf->hw.non_qos_queues,
102 otx2_queue_stats[stats].name);
103 else
104 ethtool_sprintf(data, "txq%d: %s",
105 qidx + start_qidx,
106 otx2_queue_stats[stats].name);
107 }
108
otx2_get_strings(struct net_device * netdev,u32 sset,u8 * data)109 static void otx2_get_strings(struct net_device *netdev, u32 sset, u8 *data)
110 {
111 struct otx2_nic *pfvf = netdev_priv(netdev);
112 int stats;
113
114 if (sset != ETH_SS_STATS)
115 return;
116
117 for (stats = 0; stats < otx2_n_dev_stats; stats++)
118 ethtool_puts(&data, otx2_dev_stats[stats].name);
119
120 for (stats = 0; stats < otx2_n_drv_stats; stats++)
121 ethtool_puts(&data, otx2_drv_stats[stats].name);
122
123 otx2_get_qset_strings(pfvf, &data, 0);
124
125 if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) {
126 for (stats = 0; stats < CGX_RX_STATS_COUNT; stats++)
127 ethtool_sprintf(&data, "cgx_rxstat%d: ", stats);
128
129 for (stats = 0; stats < CGX_TX_STATS_COUNT; stats++)
130 ethtool_sprintf(&data, "cgx_txstat%d: ", stats);
131 }
132
133 ethtool_puts(&data, "reset_count");
134 ethtool_puts(&data, "Fec Corrected Errors: ");
135 ethtool_puts(&data, "Fec Uncorrected Errors: ");
136 }
137
otx2_get_qset_stats(struct otx2_nic * pfvf,struct ethtool_stats * stats,u64 ** data)138 static void otx2_get_qset_stats(struct otx2_nic *pfvf,
139 struct ethtool_stats *stats, u64 **data)
140 {
141 int stat, qidx;
142
143 if (!pfvf)
144 return;
145 for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) {
146 if (!otx2_update_rq_stats(pfvf, qidx)) {
147 for (stat = 0; stat < otx2_n_queue_stats; stat++)
148 *((*data)++) = 0;
149 continue;
150 }
151 for (stat = 0; stat < otx2_n_queue_stats; stat++)
152 *((*data)++) = ((u64 *)&pfvf->qset.rq[qidx].stats)
153 [otx2_queue_stats[stat].index];
154 }
155
156 for (qidx = 0; qidx < otx2_get_total_tx_queues(pfvf); qidx++) {
157 if (!otx2_update_sq_stats(pfvf, qidx)) {
158 for (stat = 0; stat < otx2_n_queue_stats; stat++)
159 *((*data)++) = 0;
160 continue;
161 }
162 for (stat = 0; stat < otx2_n_queue_stats; stat++)
163 *((*data)++) = ((u64 *)&pfvf->qset.sq[qidx].stats)
164 [otx2_queue_stats[stat].index];
165 }
166 }
167
otx2_get_phy_fec_stats(struct otx2_nic * pfvf)168 static int otx2_get_phy_fec_stats(struct otx2_nic *pfvf)
169 {
170 struct msg_req *req;
171 int rc = -ENOMEM;
172
173 mutex_lock(&pfvf->mbox.lock);
174 req = otx2_mbox_alloc_msg_cgx_get_phy_fec_stats(&pfvf->mbox);
175 if (!req)
176 goto end;
177
178 if (!otx2_sync_mbox_msg(&pfvf->mbox))
179 rc = 0;
180 end:
181 mutex_unlock(&pfvf->mbox.lock);
182 return rc;
183 }
184
185 /* Get device and per queue statistics */
otx2_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)186 static void otx2_get_ethtool_stats(struct net_device *netdev,
187 struct ethtool_stats *stats, u64 *data)
188 {
189 struct otx2_nic *pfvf = netdev_priv(netdev);
190 u64 fec_corr_blks, fec_uncorr_blks;
191 struct cgx_fw_data *rsp;
192 int stat;
193
194 otx2_get_dev_stats(pfvf);
195 for (stat = 0; stat < otx2_n_dev_stats; stat++)
196 *(data++) = ((u64 *)&pfvf->hw.dev_stats)
197 [otx2_dev_stats[stat].index];
198
199 for (stat = 0; stat < otx2_n_drv_stats; stat++)
200 *(data++) = atomic_read(&((atomic_t *)&pfvf->hw.drv_stats)
201 [otx2_drv_stats[stat].index]);
202
203 otx2_get_qset_stats(pfvf, stats, &data);
204
205 if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) {
206 otx2_update_lmac_stats(pfvf);
207 for (stat = 0; stat < CGX_RX_STATS_COUNT; stat++)
208 *(data++) = pfvf->hw.cgx_rx_stats[stat];
209 for (stat = 0; stat < CGX_TX_STATS_COUNT; stat++)
210 *(data++) = pfvf->hw.cgx_tx_stats[stat];
211 }
212
213 *(data++) = pfvf->reset_count;
214
215 fec_corr_blks = pfvf->hw.cgx_fec_corr_blks;
216 fec_uncorr_blks = pfvf->hw.cgx_fec_uncorr_blks;
217
218 rsp = otx2_get_fwdata(pfvf);
219 if (!IS_ERR(rsp) && rsp->fwdata.phy.misc.has_fec_stats &&
220 !otx2_get_phy_fec_stats(pfvf)) {
221 /* Fetch fwdata again because it's been recently populated with
222 * latest PHY FEC stats.
223 */
224 rsp = otx2_get_fwdata(pfvf);
225 if (!IS_ERR(rsp)) {
226 struct fec_stats_s *p = &rsp->fwdata.phy.fec_stats;
227
228 if (pfvf->linfo.fec == OTX2_FEC_BASER) {
229 fec_corr_blks = p->brfec_corr_blks;
230 fec_uncorr_blks = p->brfec_uncorr_blks;
231 } else {
232 fec_corr_blks = p->rsfec_corr_cws;
233 fec_uncorr_blks = p->rsfec_uncorr_cws;
234 }
235 }
236 }
237
238 *(data++) = fec_corr_blks;
239 *(data++) = fec_uncorr_blks;
240 }
241
otx2_get_sset_count(struct net_device * netdev,int sset)242 static int otx2_get_sset_count(struct net_device *netdev, int sset)
243 {
244 struct otx2_nic *pfvf = netdev_priv(netdev);
245 int qstats_count, mac_stats = 0;
246
247 if (sset != ETH_SS_STATS)
248 return -EINVAL;
249
250 qstats_count = otx2_n_queue_stats *
251 (pfvf->hw.rx_queues + otx2_get_total_tx_queues(pfvf));
252 if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag))
253 mac_stats = CGX_RX_STATS_COUNT + CGX_TX_STATS_COUNT;
254 otx2_update_lmac_fec_stats(pfvf);
255
256 return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count +
257 mac_stats + OTX2_FEC_STATS_CNT + 1;
258 }
259
260 /* Get no of queues device supports and current queue count */
otx2_get_channels(struct net_device * dev,struct ethtool_channels * channel)261 static void otx2_get_channels(struct net_device *dev,
262 struct ethtool_channels *channel)
263 {
264 struct otx2_nic *pfvf = netdev_priv(dev);
265
266 channel->max_rx = pfvf->hw.max_queues;
267 channel->max_tx = pfvf->hw.max_queues;
268
269 channel->rx_count = pfvf->hw.rx_queues;
270 channel->tx_count = pfvf->hw.tx_queues;
271 }
272
273 /* Set no of Tx, Rx queues to be used */
otx2_set_channels(struct net_device * dev,struct ethtool_channels * channel)274 static int otx2_set_channels(struct net_device *dev,
275 struct ethtool_channels *channel)
276 {
277 struct otx2_nic *pfvf = netdev_priv(dev);
278 bool if_up = netif_running(dev);
279 int err, qos_txqs;
280
281 if (!channel->rx_count || !channel->tx_count)
282 return -EINVAL;
283
284 if (bitmap_weight(&pfvf->rq_bmap, pfvf->hw.rx_queues) > 1) {
285 netdev_err(dev,
286 "Receive queues are in use by TC police action\n");
287 return -EINVAL;
288 }
289
290 if (if_up)
291 dev->netdev_ops->ndo_stop(dev);
292
293 qos_txqs = bitmap_weight(pfvf->qos.qos_sq_bmap,
294 OTX2_QOS_MAX_LEAF_NODES);
295
296 err = otx2_set_real_num_queues(dev, channel->tx_count + qos_txqs,
297 channel->rx_count);
298 if (err)
299 return err;
300
301 pfvf->hw.rx_queues = channel->rx_count;
302 pfvf->hw.tx_queues = channel->tx_count;
303 if (pfvf->xdp_prog)
304 pfvf->hw.xdp_queues = channel->rx_count;
305
306 if (if_up)
307 err = dev->netdev_ops->ndo_open(dev);
308
309 netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
310 pfvf->hw.tx_queues, pfvf->hw.rx_queues);
311
312 return err;
313 }
314
otx2_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)315 static void otx2_get_pauseparam(struct net_device *netdev,
316 struct ethtool_pauseparam *pause)
317 {
318 struct otx2_nic *pfvf = netdev_priv(netdev);
319 struct cgx_pause_frm_cfg *req, *rsp;
320
321 if (is_otx2_lbkvf(pfvf->pdev) || is_otx2_sdp_rep(pfvf->pdev))
322 return;
323
324 mutex_lock(&pfvf->mbox.lock);
325 req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox);
326 if (!req) {
327 mutex_unlock(&pfvf->mbox.lock);
328 return;
329 }
330
331 if (!otx2_sync_mbox_msg(&pfvf->mbox)) {
332 rsp = (struct cgx_pause_frm_cfg *)
333 otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr);
334 if (IS_ERR(rsp)) {
335 mutex_unlock(&pfvf->mbox.lock);
336 return;
337 }
338
339 pause->rx_pause = rsp->rx_pause;
340 pause->tx_pause = rsp->tx_pause;
341 }
342 mutex_unlock(&pfvf->mbox.lock);
343 }
344
otx2_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)345 static int otx2_set_pauseparam(struct net_device *netdev,
346 struct ethtool_pauseparam *pause)
347 {
348 struct otx2_nic *pfvf = netdev_priv(netdev);
349
350 if (pause->autoneg)
351 return -EOPNOTSUPP;
352
353 if (is_otx2_lbkvf(pfvf->pdev) || is_otx2_sdp_rep(pfvf->pdev))
354 return -EOPNOTSUPP;
355
356 if (pause->rx_pause)
357 pfvf->flags |= OTX2_FLAG_RX_PAUSE_ENABLED;
358 else
359 pfvf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED;
360
361 if (pause->tx_pause)
362 pfvf->flags |= OTX2_FLAG_TX_PAUSE_ENABLED;
363 else
364 pfvf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED;
365
366 return otx2_config_pause_frm(pfvf);
367 }
368
otx2_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)369 static void otx2_get_ringparam(struct net_device *netdev,
370 struct ethtool_ringparam *ring,
371 struct kernel_ethtool_ringparam *kernel_ring,
372 struct netlink_ext_ack *extack)
373 {
374 struct otx2_nic *pfvf = netdev_priv(netdev);
375 struct otx2_qset *qs = &pfvf->qset;
376
377 ring->rx_max_pending = Q_COUNT(Q_SIZE_MAX);
378 ring->rx_pending = qs->rqe_cnt ? qs->rqe_cnt : Q_COUNT(Q_SIZE_256);
379 ring->tx_max_pending = Q_COUNT(Q_SIZE_MAX);
380 ring->tx_pending = qs->sqe_cnt ? qs->sqe_cnt : Q_COUNT(Q_SIZE_4K);
381 kernel_ring->rx_buf_len = pfvf->hw.rbuf_len;
382 kernel_ring->cqe_size = pfvf->hw.xqe_size;
383 }
384
otx2_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)385 static int otx2_set_ringparam(struct net_device *netdev,
386 struct ethtool_ringparam *ring,
387 struct kernel_ethtool_ringparam *kernel_ring,
388 struct netlink_ext_ack *extack)
389 {
390 struct otx2_nic *pfvf = netdev_priv(netdev);
391 u32 rx_buf_len = kernel_ring->rx_buf_len;
392 u32 old_rx_buf_len = pfvf->hw.rbuf_len;
393 u32 xqe_size = kernel_ring->cqe_size;
394 bool if_up = netif_running(netdev);
395 struct otx2_qset *qs = &pfvf->qset;
396 u32 rx_count, tx_count;
397
398 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
399 return -EINVAL;
400
401 /* Hardware supports max size of 32k for a receive buffer
402 * and 1536 is typical ethernet frame size.
403 */
404 if (rx_buf_len && (rx_buf_len < 1536 || rx_buf_len > 32768)) {
405 netdev_err(netdev,
406 "Receive buffer range is 1536 - 32768");
407 return -EINVAL;
408 }
409
410 if (xqe_size != 128 && xqe_size != 512) {
411 netdev_err(netdev,
412 "Completion event size must be 128 or 512");
413 return -EINVAL;
414 }
415
416 /* Permitted lengths are 16 64 256 1K 4K 16K 64K 256K 1M */
417 rx_count = ring->rx_pending;
418 /* On some silicon variants a skid or reserved CQEs are
419 * needed to avoid CQ overflow.
420 */
421 if (rx_count < pfvf->hw.rq_skid)
422 rx_count = pfvf->hw.rq_skid;
423
424 if (ring->rx_pending < 16) {
425 netdev_err(netdev,
426 "rx ring size %u invalid, min is 16\n",
427 ring->rx_pending);
428 return -EINVAL;
429 }
430
431 rx_count = Q_COUNT(Q_SIZE(rx_count, 3));
432
433 /* Due pipelining impact minimum 2000 unused SQ CQE's
434 * need to be maintained to avoid CQ overflow, hence the
435 * minimum 4K size.
436 */
437 tx_count = clamp_t(u32, ring->tx_pending,
438 Q_COUNT(Q_SIZE_4K), Q_COUNT(Q_SIZE_MAX));
439 tx_count = Q_COUNT(Q_SIZE(tx_count, 3));
440
441 if (tx_count == qs->sqe_cnt && rx_count == qs->rqe_cnt &&
442 rx_buf_len == old_rx_buf_len && xqe_size == pfvf->hw.xqe_size)
443 return 0;
444
445 if (if_up)
446 netdev->netdev_ops->ndo_stop(netdev);
447
448 /* Assigned to the nearest possible exponent. */
449 qs->sqe_cnt = tx_count;
450 qs->rqe_cnt = rx_count;
451
452 pfvf->hw.rbuf_len = rx_buf_len;
453 pfvf->hw.xqe_size = xqe_size;
454
455 if (if_up)
456 return netdev->netdev_ops->ndo_open(netdev);
457
458 return 0;
459 }
460
otx2_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * cmd,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)461 static int otx2_get_coalesce(struct net_device *netdev,
462 struct ethtool_coalesce *cmd,
463 struct kernel_ethtool_coalesce *kernel_coal,
464 struct netlink_ext_ack *extack)
465 {
466 struct otx2_nic *pfvf = netdev_priv(netdev);
467 struct otx2_hw *hw = &pfvf->hw;
468
469 cmd->rx_coalesce_usecs = hw->cq_time_wait;
470 cmd->rx_max_coalesced_frames = hw->cq_ecount_wait;
471 cmd->tx_coalesce_usecs = hw->cq_time_wait;
472 cmd->tx_max_coalesced_frames = hw->cq_ecount_wait;
473 if ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) ==
474 OTX2_FLAG_ADPTV_INT_COAL_ENABLED) {
475 cmd->use_adaptive_rx_coalesce = 1;
476 cmd->use_adaptive_tx_coalesce = 1;
477 } else {
478 cmd->use_adaptive_rx_coalesce = 0;
479 cmd->use_adaptive_tx_coalesce = 0;
480 }
481
482 return 0;
483 }
484
otx2_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)485 static int otx2_set_coalesce(struct net_device *netdev,
486 struct ethtool_coalesce *ec,
487 struct kernel_ethtool_coalesce *kernel_coal,
488 struct netlink_ext_ack *extack)
489 {
490 struct otx2_nic *pfvf = netdev_priv(netdev);
491 struct otx2_hw *hw = &pfvf->hw;
492 u8 priv_coalesce_status;
493 int qidx;
494
495 if (!ec->rx_max_coalesced_frames || !ec->tx_max_coalesced_frames)
496 return 0;
497
498 if (ec->use_adaptive_rx_coalesce != ec->use_adaptive_tx_coalesce) {
499 netdev_err(netdev,
500 "adaptive-rx should be same as adaptive-tx");
501 return -EINVAL;
502 }
503
504 /* Check and update coalesce status */
505 if ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) ==
506 OTX2_FLAG_ADPTV_INT_COAL_ENABLED) {
507 priv_coalesce_status = 1;
508 if (!ec->use_adaptive_rx_coalesce)
509 pfvf->flags &= ~OTX2_FLAG_ADPTV_INT_COAL_ENABLED;
510 } else {
511 priv_coalesce_status = 0;
512 if (ec->use_adaptive_rx_coalesce)
513 pfvf->flags |= OTX2_FLAG_ADPTV_INT_COAL_ENABLED;
514 }
515
516 /* 'cq_time_wait' is 8bit and is in multiple of 100ns,
517 * so clamp the user given value to the range of 1 to 25usec.
518 */
519 ec->rx_coalesce_usecs = clamp_t(u32, ec->rx_coalesce_usecs,
520 1, CQ_TIMER_THRESH_MAX);
521 ec->tx_coalesce_usecs = clamp_t(u32, ec->tx_coalesce_usecs,
522 1, CQ_TIMER_THRESH_MAX);
523
524 /* Rx and Tx are mapped to same CQ, check which one
525 * is changed, if both then choose the min.
526 */
527 if (hw->cq_time_wait == ec->rx_coalesce_usecs)
528 hw->cq_time_wait = ec->tx_coalesce_usecs;
529 else if (hw->cq_time_wait == ec->tx_coalesce_usecs)
530 hw->cq_time_wait = ec->rx_coalesce_usecs;
531 else
532 hw->cq_time_wait = min_t(u8, ec->rx_coalesce_usecs,
533 ec->tx_coalesce_usecs);
534
535 /* Max ecount_wait supported is 16bit,
536 * so clamp the user given value to the range of 1 to 64k.
537 */
538 ec->rx_max_coalesced_frames = clamp_t(u32, ec->rx_max_coalesced_frames,
539 1, NAPI_POLL_WEIGHT);
540 ec->tx_max_coalesced_frames = clamp_t(u32, ec->tx_max_coalesced_frames,
541 1, NAPI_POLL_WEIGHT);
542
543 /* Rx and Tx are mapped to same CQ, check which one
544 * is changed, if both then choose the min.
545 */
546 if (hw->cq_ecount_wait == ec->rx_max_coalesced_frames)
547 hw->cq_ecount_wait = ec->tx_max_coalesced_frames;
548 else if (hw->cq_ecount_wait == ec->tx_max_coalesced_frames)
549 hw->cq_ecount_wait = ec->rx_max_coalesced_frames;
550 else
551 hw->cq_ecount_wait = min_t(u16, ec->rx_max_coalesced_frames,
552 ec->tx_max_coalesced_frames);
553
554 /* Reset 'cq_time_wait' and 'cq_ecount_wait' to
555 * default values if coalesce status changed from
556 * 'on' to 'off'.
557 */
558 if (priv_coalesce_status &&
559 ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) !=
560 OTX2_FLAG_ADPTV_INT_COAL_ENABLED)) {
561 hw->cq_time_wait = CQ_TIMER_THRESH_DEFAULT;
562 hw->cq_ecount_wait = CQ_CQE_THRESH_DEFAULT;
563 }
564
565 if (netif_running(netdev)) {
566 for (qidx = 0; qidx < pfvf->hw.cint_cnt; qidx++)
567 otx2_config_irq_coalescing(pfvf, qidx);
568 }
569
570 return 0;
571 }
572
otx2_get_rx_ring_count(struct net_device * dev)573 static u32 otx2_get_rx_ring_count(struct net_device *dev)
574 {
575 struct otx2_nic *pfvf = netdev_priv(dev);
576
577 return pfvf->hw.rx_queues;
578 }
579
otx2_get_rss_hash_opts(struct net_device * dev,struct ethtool_rxfh_fields * nfc)580 static int otx2_get_rss_hash_opts(struct net_device *dev,
581 struct ethtool_rxfh_fields *nfc)
582 {
583 struct otx2_nic *pfvf = netdev_priv(dev);
584 struct otx2_rss_info *rss;
585
586 rss = &pfvf->hw.rss_info;
587
588 if (!(rss->flowkey_cfg &
589 (NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6)))
590 return 0;
591
592 /* Mimimum is IPv4 and IPv6, SIP/DIP */
593 nfc->data = RXH_IP_SRC | RXH_IP_DST;
594 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_VLAN)
595 nfc->data |= RXH_VLAN;
596
597 switch (nfc->flow_type) {
598 case TCP_V4_FLOW:
599 case TCP_V6_FLOW:
600 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_TCP)
601 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
602 break;
603 case UDP_V4_FLOW:
604 case UDP_V6_FLOW:
605 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_UDP)
606 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
607 break;
608 case SCTP_V4_FLOW:
609 case SCTP_V6_FLOW:
610 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_SCTP)
611 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
612 break;
613 case AH_ESP_V4_FLOW:
614 case AH_ESP_V6_FLOW:
615 if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_ESP)
616 nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
617 break;
618 case AH_V4_FLOW:
619 case ESP_V4_FLOW:
620 case IPV4_FLOW:
621 break;
622 case AH_V6_FLOW:
623 case ESP_V6_FLOW:
624 case IPV6_FLOW:
625 break;
626 default:
627 return -EINVAL;
628 }
629
630 return 0;
631 }
632
otx2_set_rss_hash_opts(struct net_device * dev,const struct ethtool_rxfh_fields * nfc,struct netlink_ext_ack * extack)633 static int otx2_set_rss_hash_opts(struct net_device *dev,
634 const struct ethtool_rxfh_fields *nfc,
635 struct netlink_ext_ack *extack)
636 {
637 struct otx2_nic *pfvf = netdev_priv(dev);
638 u32 rxh_l4 = RXH_L4_B_0_1 | RXH_L4_B_2_3;
639 struct otx2_rss_info *rss;
640 u32 rss_cfg;
641
642 rss = &pfvf->hw.rss_info;
643 rss_cfg = rss->flowkey_cfg;
644
645 if (!rss->enable) {
646 netdev_err(pfvf->netdev,
647 "RSS is disabled, cannot change settings\n");
648 return -EIO;
649 }
650
651 /* Mimimum is IPv4 and IPv6, SIP/DIP */
652 if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST))
653 return -EINVAL;
654
655 if (nfc->data & RXH_VLAN)
656 rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN;
657 else
658 rss_cfg &= ~NIX_FLOW_KEY_TYPE_VLAN;
659
660 switch (nfc->flow_type) {
661 case TCP_V4_FLOW:
662 case TCP_V6_FLOW:
663 /* Different config for v4 and v6 is not supported.
664 * Both of them have to be either 4-tuple or 2-tuple.
665 */
666 switch (nfc->data & rxh_l4) {
667 case 0:
668 rss_cfg &= ~NIX_FLOW_KEY_TYPE_TCP;
669 break;
670 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
671 rss_cfg |= NIX_FLOW_KEY_TYPE_TCP;
672 break;
673 default:
674 return -EINVAL;
675 }
676 break;
677 case UDP_V4_FLOW:
678 case UDP_V6_FLOW:
679 switch (nfc->data & rxh_l4) {
680 case 0:
681 rss_cfg &= ~NIX_FLOW_KEY_TYPE_UDP;
682 break;
683 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
684 rss_cfg |= NIX_FLOW_KEY_TYPE_UDP;
685 break;
686 default:
687 return -EINVAL;
688 }
689 break;
690 case SCTP_V4_FLOW:
691 case SCTP_V6_FLOW:
692 switch (nfc->data & rxh_l4) {
693 case 0:
694 rss_cfg &= ~NIX_FLOW_KEY_TYPE_SCTP;
695 break;
696 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
697 rss_cfg |= NIX_FLOW_KEY_TYPE_SCTP;
698 break;
699 default:
700 return -EINVAL;
701 }
702 break;
703 case AH_ESP_V4_FLOW:
704 case AH_ESP_V6_FLOW:
705 switch (nfc->data & rxh_l4) {
706 case 0:
707 rss_cfg &= ~(NIX_FLOW_KEY_TYPE_ESP |
708 NIX_FLOW_KEY_TYPE_AH);
709 rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN |
710 NIX_FLOW_KEY_TYPE_IPV4_PROTO;
711 break;
712 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
713 /* If VLAN hashing is also requested for ESP then do not
714 * allow because of hardware 40 bytes flow key limit.
715 */
716 if (rss_cfg & NIX_FLOW_KEY_TYPE_VLAN) {
717 netdev_err(pfvf->netdev,
718 "RSS hash of ESP or AH with VLAN is not supported\n");
719 return -EOPNOTSUPP;
720 }
721
722 rss_cfg |= NIX_FLOW_KEY_TYPE_ESP | NIX_FLOW_KEY_TYPE_AH;
723 /* Disable IPv4 proto hashing since IPv6 SA+DA(32 bytes)
724 * and ESP SPI+sequence(8 bytes) uses hardware maximum
725 * limit of 40 byte flow key.
726 */
727 rss_cfg &= ~NIX_FLOW_KEY_TYPE_IPV4_PROTO;
728 break;
729 default:
730 return -EINVAL;
731 }
732 break;
733 case IPV4_FLOW:
734 case IPV6_FLOW:
735 rss_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6;
736 break;
737 default:
738 return -EINVAL;
739 }
740
741 rss->flowkey_cfg = rss_cfg;
742 otx2_set_flowkey_cfg(pfvf);
743 return 0;
744 }
745
otx2_get_rxnfc(struct net_device * dev,struct ethtool_rxnfc * nfc,u32 * rules)746 static int otx2_get_rxnfc(struct net_device *dev,
747 struct ethtool_rxnfc *nfc, u32 *rules)
748 {
749 bool ntuple = !!(dev->features & NETIF_F_NTUPLE);
750 struct otx2_nic *pfvf = netdev_priv(dev);
751 int ret = -EOPNOTSUPP;
752
753 switch (nfc->cmd) {
754 case ETHTOOL_GRXCLSRLCNT:
755 if (netif_running(dev) && ntuple) {
756 nfc->rule_cnt = pfvf->flow_cfg->nr_flows;
757 ret = 0;
758 }
759 break;
760 case ETHTOOL_GRXCLSRULE:
761 if (netif_running(dev) && ntuple)
762 ret = otx2_get_flow(pfvf, nfc, nfc->fs.location);
763 break;
764 case ETHTOOL_GRXCLSRLALL:
765 if (netif_running(dev) && ntuple)
766 ret = otx2_get_all_flows(pfvf, nfc, rules);
767 break;
768 default:
769 break;
770 }
771 return ret;
772 }
773
otx2_set_rxnfc(struct net_device * dev,struct ethtool_rxnfc * nfc)774 static int otx2_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc)
775 {
776 bool ntuple = !!(dev->features & NETIF_F_NTUPLE);
777 struct otx2_nic *pfvf = netdev_priv(dev);
778 int ret = -EOPNOTSUPP;
779
780 pfvf->flow_cfg->ntuple = ntuple;
781 switch (nfc->cmd) {
782 case ETHTOOL_SRXCLSRLINS:
783 if (netif_running(dev) && ntuple)
784 ret = otx2_add_flow(pfvf, nfc);
785 break;
786 case ETHTOOL_SRXCLSRLDEL:
787 if (netif_running(dev) && ntuple)
788 ret = otx2_remove_flow(pfvf, nfc->fs.location);
789 break;
790 default:
791 break;
792 }
793
794 return ret;
795 }
796
otx2_get_rxfh_key_size(struct net_device * netdev)797 static u32 otx2_get_rxfh_key_size(struct net_device *netdev)
798 {
799 struct otx2_nic *pfvf = netdev_priv(netdev);
800 struct otx2_rss_info *rss;
801
802 rss = &pfvf->hw.rss_info;
803
804 return sizeof(rss->key);
805 }
806
otx2_get_rxfh_indir_size(struct net_device * dev)807 static u32 otx2_get_rxfh_indir_size(struct net_device *dev)
808 {
809 return MAX_RSS_INDIR_TBL_SIZE;
810 }
811
otx2_create_rxfh(struct net_device * dev,struct ethtool_rxfh_context * ctx,const struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)812 static int otx2_create_rxfh(struct net_device *dev,
813 struct ethtool_rxfh_context *ctx,
814 const struct ethtool_rxfh_param *rxfh,
815 struct netlink_ext_ack *extack)
816 {
817 struct otx2_nic *pfvf = netdev_priv(dev);
818 struct otx2_rss_info *rss;
819 unsigned int queues;
820 u32 *ind_tbl;
821 int idx;
822
823 rss = &pfvf->hw.rss_info;
824 queues = pfvf->hw.rx_queues;
825
826 if (rxfh->hfunc && rxfh->hfunc != ETH_RSS_HASH_TOP)
827 return -EOPNOTSUPP;
828 ctx->hfunc = ETH_RSS_HASH_TOP;
829
830 if (!rss->enable) {
831 netdev_err(dev, "RSS is disabled, cannot change settings\n");
832 return -EIO;
833 }
834
835 ind_tbl = rxfh->indir;
836 if (!ind_tbl) {
837 ind_tbl = ethtool_rxfh_context_indir(ctx);
838 for (idx = 0; idx < rss->rss_size; idx++)
839 ind_tbl[idx] = ethtool_rxfh_indir_default(idx, queues);
840 }
841
842 otx2_set_rss_table(pfvf, rxfh->rss_context, ind_tbl);
843 return 0;
844 }
845
otx2_modify_rxfh(struct net_device * dev,struct ethtool_rxfh_context * ctx,const struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)846 static int otx2_modify_rxfh(struct net_device *dev,
847 struct ethtool_rxfh_context *ctx,
848 const struct ethtool_rxfh_param *rxfh,
849 struct netlink_ext_ack *extack)
850 {
851 struct otx2_nic *pfvf = netdev_priv(dev);
852
853 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
854 rxfh->hfunc != ETH_RSS_HASH_TOP)
855 return -EOPNOTSUPP;
856
857 if (!pfvf->hw.rss_info.enable) {
858 netdev_err(dev, "RSS is disabled, cannot change settings\n");
859 return -EIO;
860 }
861
862 if (rxfh->indir)
863 otx2_set_rss_table(pfvf, rxfh->rss_context, rxfh->indir);
864
865 return 0;
866 }
867
otx2_remove_rxfh(struct net_device * dev,struct ethtool_rxfh_context * ctx,u32 rss_context,struct netlink_ext_ack * extack)868 static int otx2_remove_rxfh(struct net_device *dev,
869 struct ethtool_rxfh_context *ctx,
870 u32 rss_context,
871 struct netlink_ext_ack *extack)
872 {
873 struct otx2_nic *pfvf = netdev_priv(dev);
874
875 if (!pfvf->hw.rss_info.enable) {
876 netdev_err(dev, "RSS is disabled, cannot change settings\n");
877 return -EIO;
878 }
879
880 otx2_rss_ctx_flow_del(pfvf, rss_context);
881 return 0;
882 }
883
884 /* Configure RSS table and hash key */
otx2_set_rxfh(struct net_device * dev,struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)885 static int otx2_set_rxfh(struct net_device *dev,
886 struct ethtool_rxfh_param *rxfh,
887 struct netlink_ext_ack *extack)
888 {
889 struct otx2_nic *pfvf = netdev_priv(dev);
890 struct otx2_rss_info *rss;
891 int idx;
892
893 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
894 rxfh->hfunc != ETH_RSS_HASH_TOP)
895 return -EOPNOTSUPP;
896
897 rss = &pfvf->hw.rss_info;
898
899 if (!rss->enable) {
900 netdev_err(dev, "RSS is disabled, cannot change settings\n");
901 return -EIO;
902 }
903
904 if (rxfh->key) {
905 memcpy(rss->key, rxfh->key, sizeof(rss->key));
906 otx2_set_rss_key(pfvf);
907 }
908
909 if (rxfh->indir) {
910 for (idx = 0; idx < rss->rss_size; idx++)
911 rss->ind_tbl[idx] = rxfh->indir[idx];
912 }
913 otx2_set_rss_table(pfvf, DEFAULT_RSS_CONTEXT_GROUP, NULL);
914
915 return 0;
916 }
917
918 /* Get RSS configuration */
otx2_get_rxfh(struct net_device * dev,struct ethtool_rxfh_param * rxfh)919 static int otx2_get_rxfh(struct net_device *dev,
920 struct ethtool_rxfh_param *rxfh)
921 {
922 struct otx2_nic *pfvf = netdev_priv(dev);
923 struct otx2_rss_info *rss;
924 u32 *indir = rxfh->indir;
925 int idx, rx_queues;
926
927 rss = &pfvf->hw.rss_info;
928
929 rxfh->hfunc = ETH_RSS_HASH_TOP;
930 if (!indir)
931 return 0;
932
933 if (!rss->enable) {
934 rx_queues = pfvf->hw.rx_queues;
935 for (idx = 0; idx < MAX_RSS_INDIR_TBL_SIZE; idx++)
936 indir[idx] = ethtool_rxfh_indir_default(idx, rx_queues);
937 return 0;
938 }
939
940 for (idx = 0; idx < rss->rss_size; idx++) {
941 /* Ignore if the rx queue is AF_XDP zero copy enabled */
942 if (test_bit(rss->ind_tbl[idx], pfvf->af_xdp_zc_qidx))
943 continue;
944 indir[idx] = rss->ind_tbl[idx];
945 }
946 if (rxfh->key)
947 memcpy(rxfh->key, rss->key, sizeof(rss->key));
948
949 return 0;
950 }
951
otx2_get_msglevel(struct net_device * netdev)952 static u32 otx2_get_msglevel(struct net_device *netdev)
953 {
954 struct otx2_nic *pfvf = netdev_priv(netdev);
955
956 return pfvf->msg_enable;
957 }
958
otx2_set_msglevel(struct net_device * netdev,u32 val)959 static void otx2_set_msglevel(struct net_device *netdev, u32 val)
960 {
961 struct otx2_nic *pfvf = netdev_priv(netdev);
962
963 pfvf->msg_enable = val;
964 }
965
otx2_get_link(struct net_device * netdev)966 static u32 otx2_get_link(struct net_device *netdev)
967 {
968 struct otx2_nic *pfvf = netdev_priv(netdev);
969
970 /* LBK and SDP links are internal and always UP */
971 if (is_otx2_lbkvf(pfvf->pdev) || is_otx2_sdp_rep(pfvf->pdev))
972 return 1;
973 return pfvf->linfo.link_up;
974 }
975
otx2_get_ts_info(struct net_device * netdev,struct kernel_ethtool_ts_info * info)976 static int otx2_get_ts_info(struct net_device *netdev,
977 struct kernel_ethtool_ts_info *info)
978 {
979 struct otx2_nic *pfvf = netdev_priv(netdev);
980
981 if (!pfvf->ptp)
982 return ethtool_op_get_ts_info(netdev, info);
983
984 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
985 SOF_TIMESTAMPING_TX_HARDWARE |
986 SOF_TIMESTAMPING_RX_HARDWARE |
987 SOF_TIMESTAMPING_RAW_HARDWARE;
988
989 info->phc_index = otx2_ptp_clock_index(pfvf);
990
991 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
992 if (test_bit(CN10K_PTP_ONESTEP, &pfvf->hw.cap_flag))
993 info->tx_types |= BIT(HWTSTAMP_TX_ONESTEP_SYNC);
994
995 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
996 BIT(HWTSTAMP_FILTER_ALL);
997
998 return 0;
999 }
1000
otx2_get_fwdata(struct otx2_nic * pfvf)1001 static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf)
1002 {
1003 struct cgx_fw_data *rsp = NULL;
1004 struct msg_req *req;
1005 int err = 0;
1006
1007 mutex_lock(&pfvf->mbox.lock);
1008 req = otx2_mbox_alloc_msg_cgx_get_aux_link_info(&pfvf->mbox);
1009 if (!req) {
1010 mutex_unlock(&pfvf->mbox.lock);
1011 return ERR_PTR(-ENOMEM);
1012 }
1013
1014 err = otx2_sync_mbox_msg(&pfvf->mbox);
1015 if (!err) {
1016 rsp = (struct cgx_fw_data *)
1017 otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr);
1018 } else {
1019 rsp = ERR_PTR(err);
1020 }
1021
1022 mutex_unlock(&pfvf->mbox.lock);
1023 return rsp;
1024 }
1025
otx2_get_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1026 static int otx2_get_fecparam(struct net_device *netdev,
1027 struct ethtool_fecparam *fecparam)
1028 {
1029 struct otx2_nic *pfvf = netdev_priv(netdev);
1030 struct cgx_fw_data *rsp;
1031 const int fec[] = {
1032 ETHTOOL_FEC_OFF,
1033 ETHTOOL_FEC_BASER,
1034 ETHTOOL_FEC_RS,
1035 ETHTOOL_FEC_BASER | ETHTOOL_FEC_RS};
1036
1037 fecparam->active_fec = fec[pfvf->linfo.fec];
1038
1039 rsp = otx2_get_fwdata(pfvf);
1040 if (IS_ERR(rsp))
1041 return PTR_ERR(rsp);
1042
1043 if (rsp->fwdata.supported_fec < OTX2_FEC_MAX_INDEX) {
1044 if (!rsp->fwdata.supported_fec)
1045 fecparam->fec = ETHTOOL_FEC_NONE;
1046 else
1047 fecparam->fec = fec[rsp->fwdata.supported_fec];
1048 }
1049 return 0;
1050 }
1051
otx2_set_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1052 static int otx2_set_fecparam(struct net_device *netdev,
1053 struct ethtool_fecparam *fecparam)
1054 {
1055 struct otx2_nic *pfvf = netdev_priv(netdev);
1056 struct mbox *mbox = &pfvf->mbox;
1057 struct fec_mode *req, *rsp;
1058 int err = 0, fec = 0;
1059
1060 switch (fecparam->fec) {
1061 /* Firmware does not support AUTO mode consider it as FEC_OFF */
1062 case ETHTOOL_FEC_OFF:
1063 case ETHTOOL_FEC_AUTO:
1064 fec = OTX2_FEC_OFF;
1065 break;
1066 case ETHTOOL_FEC_RS:
1067 fec = OTX2_FEC_RS;
1068 break;
1069 case ETHTOOL_FEC_BASER:
1070 fec = OTX2_FEC_BASER;
1071 break;
1072 default:
1073 netdev_warn(pfvf->netdev, "Unsupported FEC mode: %d",
1074 fecparam->fec);
1075 return -EINVAL;
1076 }
1077
1078 if (fec == pfvf->linfo.fec)
1079 return 0;
1080
1081 mutex_lock(&mbox->lock);
1082 req = otx2_mbox_alloc_msg_cgx_set_fec_param(&pfvf->mbox);
1083 if (!req) {
1084 err = -ENOMEM;
1085 goto end;
1086 }
1087 req->fec = fec;
1088 err = otx2_sync_mbox_msg(&pfvf->mbox);
1089 if (err)
1090 goto end;
1091
1092 rsp = (struct fec_mode *)otx2_mbox_get_rsp(&pfvf->mbox.mbox,
1093 0, &req->hdr);
1094 if (IS_ERR(rsp)) {
1095 err = PTR_ERR(rsp);
1096 goto end;
1097 }
1098
1099 if (rsp->fec >= 0)
1100 pfvf->linfo.fec = rsp->fec;
1101 else
1102 err = rsp->fec;
1103 end:
1104 mutex_unlock(&mbox->lock);
1105 return err;
1106 }
1107
otx2_get_fec_info(u64 index,int req_mode,struct ethtool_link_ksettings * link_ksettings)1108 static void otx2_get_fec_info(u64 index, int req_mode,
1109 struct ethtool_link_ksettings *link_ksettings)
1110 {
1111 __ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_fec_modes) = { 0, };
1112
1113 switch (index) {
1114 case OTX2_FEC_NONE:
1115 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT,
1116 otx2_fec_modes);
1117 break;
1118 case OTX2_FEC_BASER:
1119 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
1120 otx2_fec_modes);
1121 break;
1122 case OTX2_FEC_RS:
1123 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
1124 otx2_fec_modes);
1125 break;
1126 case OTX2_FEC_BASER | OTX2_FEC_RS:
1127 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
1128 otx2_fec_modes);
1129 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
1130 otx2_fec_modes);
1131 break;
1132 }
1133
1134 /* Add fec modes to existing modes */
1135 if (req_mode == OTX2_MODE_ADVERTISED)
1136 linkmode_or(link_ksettings->link_modes.advertising,
1137 link_ksettings->link_modes.advertising,
1138 otx2_fec_modes);
1139 else
1140 linkmode_or(link_ksettings->link_modes.supported,
1141 link_ksettings->link_modes.supported,
1142 otx2_fec_modes);
1143 }
1144
otx2_get_link_mode_info(u64 link_mode_bmap,bool req_mode,struct ethtool_link_ksettings * link_ksettings)1145 static void otx2_get_link_mode_info(u64 link_mode_bmap,
1146 bool req_mode,
1147 struct ethtool_link_ksettings
1148 *link_ksettings)
1149 {
1150 __ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_link_modes) = { 0, };
1151 /* CGX link modes to Ethtool link mode mapping */
1152 const int cgx_link_mode[CGX_MODE_MAX] = {
1153 0, /* SGMII 1000baseT */
1154 ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
1155 ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
1156 ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
1157 ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
1158 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
1159 0,
1160 ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
1161 0,
1162 0,
1163 ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
1164 ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
1165 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
1166 ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
1167 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
1168 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
1169 0,
1170 ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
1171 0,
1172 ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
1173 ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
1174 ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
1175 0,
1176 ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
1177 ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
1178 ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
1179 ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT
1180 };
1181 u8 bit;
1182
1183 for_each_set_bit(bit, (unsigned long *)&link_mode_bmap, ARRAY_SIZE(cgx_link_mode)) {
1184 if (bit == CGX_MODE_SGMII_10M_BIT) {
1185 linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, otx2_link_modes);
1186 linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, otx2_link_modes);
1187 } else if (bit == CGX_MODE_SGMII_100M_BIT) {
1188 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, otx2_link_modes);
1189 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, otx2_link_modes);
1190 } else if (bit == CGX_MODE_SGMII) {
1191 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, otx2_link_modes);
1192 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, otx2_link_modes);
1193 } else {
1194 linkmode_set_bit(cgx_link_mode[bit], otx2_link_modes);
1195 }
1196 }
1197
1198 if (req_mode == OTX2_MODE_ADVERTISED)
1199 linkmode_copy(link_ksettings->link_modes.advertising,
1200 otx2_link_modes);
1201 else
1202 linkmode_copy(link_ksettings->link_modes.supported,
1203 otx2_link_modes);
1204 }
1205
otx2_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)1206 static int otx2_get_link_ksettings(struct net_device *netdev,
1207 struct ethtool_link_ksettings *cmd)
1208 {
1209 struct otx2_nic *pfvf = netdev_priv(netdev);
1210 struct cgx_fw_data *rsp = NULL;
1211
1212 cmd->base.duplex = pfvf->linfo.full_duplex;
1213 cmd->base.speed = pfvf->linfo.speed;
1214 cmd->base.autoneg = pfvf->linfo.an;
1215
1216 rsp = otx2_get_fwdata(pfvf);
1217 if (IS_ERR(rsp))
1218 return PTR_ERR(rsp);
1219
1220 if (rsp->fwdata.supported_an)
1221 ethtool_link_ksettings_add_link_mode(cmd,
1222 supported,
1223 Autoneg);
1224
1225 otx2_get_link_mode_info(rsp->fwdata.advertised_link_modes,
1226 OTX2_MODE_ADVERTISED, cmd);
1227 otx2_get_fec_info(rsp->fwdata.advertised_fec,
1228 OTX2_MODE_ADVERTISED, cmd);
1229 otx2_get_link_mode_info(rsp->fwdata.supported_link_modes,
1230 OTX2_MODE_SUPPORTED, cmd);
1231 otx2_get_fec_info(rsp->fwdata.supported_fec,
1232 OTX2_MODE_SUPPORTED, cmd);
1233 return 0;
1234 }
1235
otx2_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * cmd)1236 static int otx2_set_link_ksettings(struct net_device *netdev,
1237 const struct ethtool_link_ksettings *cmd)
1238 {
1239 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
1240 struct otx2_nic *pf = netdev_priv(netdev);
1241 struct ethtool_link_ksettings cur_ks;
1242 struct cgx_set_link_mode_req *req;
1243 struct mbox *mbox = &pf->mbox;
1244 int err = 0;
1245
1246 memset(&cur_ks, 0, sizeof(struct ethtool_link_ksettings));
1247
1248 if (!ethtool_validate_speed(cmd->base.speed) ||
1249 !ethtool_validate_duplex(cmd->base.duplex))
1250 return -EINVAL;
1251
1252 if (cmd->base.autoneg != AUTONEG_ENABLE &&
1253 cmd->base.autoneg != AUTONEG_DISABLE)
1254 return -EINVAL;
1255
1256 otx2_get_link_ksettings(netdev, &cur_ks);
1257
1258 /* Check requested modes against supported modes by hardware */
1259 if (!linkmode_subset(cmd->link_modes.advertising,
1260 cur_ks.link_modes.supported))
1261 return -EINVAL;
1262
1263 mutex_lock(&mbox->lock);
1264 req = otx2_mbox_alloc_msg_cgx_set_link_mode(&pf->mbox);
1265 if (!req) {
1266 err = -ENOMEM;
1267 goto end;
1268 }
1269
1270 req->args.speed = cmd->base.speed;
1271 /* firmware expects 1 for half duplex and 0 for full duplex
1272 * hence inverting
1273 */
1274 req->args.duplex = cmd->base.duplex ^ 0x1;
1275 req->args.an = cmd->base.autoneg;
1276 /* Mask unsupported modes and send message to AF */
1277 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT, mask);
1278 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, mask);
1279 linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, mask);
1280
1281 linkmode_copy(req->args.advertising,
1282 cmd->link_modes.advertising);
1283 linkmode_andnot(req->args.advertising,
1284 req->args.advertising, mask);
1285
1286 /* inform AF that we need parse this differently */
1287 if (bitmap_weight(req->args.advertising,
1288 __ETHTOOL_LINK_MODE_MASK_NBITS) >= 2)
1289 req->args.multimode = true;
1290
1291 err = otx2_sync_mbox_msg(&pf->mbox);
1292 end:
1293 mutex_unlock(&mbox->lock);
1294 return err;
1295 }
1296
otx2_get_fec_stats(struct net_device * netdev,struct ethtool_fec_stats * fec_stats,struct ethtool_fec_hist * hist)1297 static void otx2_get_fec_stats(struct net_device *netdev,
1298 struct ethtool_fec_stats *fec_stats,
1299 struct ethtool_fec_hist *hist)
1300 {
1301 struct otx2_nic *pfvf = netdev_priv(netdev);
1302 struct cgx_fw_data *rsp;
1303
1304 otx2_update_lmac_fec_stats(pfvf);
1305
1306 /* Report MAC FEC stats */
1307 fec_stats->corrected_blocks.total = pfvf->hw.cgx_fec_corr_blks;
1308 fec_stats->uncorrectable_blocks.total = pfvf->hw.cgx_fec_uncorr_blks;
1309
1310 rsp = otx2_get_fwdata(pfvf);
1311 if (!IS_ERR(rsp) && rsp->fwdata.phy.misc.has_fec_stats &&
1312 !otx2_get_phy_fec_stats(pfvf)) {
1313 /* Fetch fwdata again because it's been recently populated with
1314 * latest PHY FEC stats.
1315 */
1316 rsp = otx2_get_fwdata(pfvf);
1317 if (!IS_ERR(rsp)) {
1318 struct fec_stats_s *p = &rsp->fwdata.phy.fec_stats;
1319
1320 if (pfvf->linfo.fec == OTX2_FEC_BASER) {
1321 fec_stats->corrected_blocks.total = p->brfec_corr_blks;
1322 fec_stats->uncorrectable_blocks.total = p->brfec_uncorr_blks;
1323 } else {
1324 fec_stats->corrected_blocks.total = p->rsfec_corr_cws;
1325 fec_stats->uncorrectable_blocks.total = p->rsfec_uncorr_cws;
1326 }
1327 }
1328 }
1329 }
1330
1331 static const struct ethtool_ops otx2_ethtool_ops = {
1332 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1333 ETHTOOL_COALESCE_MAX_FRAMES |
1334 ETHTOOL_COALESCE_USE_ADAPTIVE,
1335 .supported_ring_params = ETHTOOL_RING_USE_RX_BUF_LEN |
1336 ETHTOOL_RING_USE_CQE_SIZE,
1337 .rxfh_max_num_contexts = MAX_RSS_GROUPS,
1338 .get_link = otx2_get_link,
1339 .get_drvinfo = otx2_get_drvinfo,
1340 .get_strings = otx2_get_strings,
1341 .get_ethtool_stats = otx2_get_ethtool_stats,
1342 .get_sset_count = otx2_get_sset_count,
1343 .set_channels = otx2_set_channels,
1344 .get_channels = otx2_get_channels,
1345 .get_ringparam = otx2_get_ringparam,
1346 .set_ringparam = otx2_set_ringparam,
1347 .get_coalesce = otx2_get_coalesce,
1348 .set_coalesce = otx2_set_coalesce,
1349 .get_rxnfc = otx2_get_rxnfc,
1350 .set_rxnfc = otx2_set_rxnfc,
1351 .get_rx_ring_count = otx2_get_rx_ring_count,
1352 .get_rxfh_key_size = otx2_get_rxfh_key_size,
1353 .get_rxfh_indir_size = otx2_get_rxfh_indir_size,
1354 .get_rxfh = otx2_get_rxfh,
1355 .set_rxfh = otx2_set_rxfh,
1356 .get_rxfh_fields = otx2_get_rss_hash_opts,
1357 .set_rxfh_fields = otx2_set_rss_hash_opts,
1358 .create_rxfh_context = otx2_create_rxfh,
1359 .modify_rxfh_context = otx2_modify_rxfh,
1360 .remove_rxfh_context = otx2_remove_rxfh,
1361 .get_msglevel = otx2_get_msglevel,
1362 .set_msglevel = otx2_set_msglevel,
1363 .get_pauseparam = otx2_get_pauseparam,
1364 .set_pauseparam = otx2_set_pauseparam,
1365 .get_ts_info = otx2_get_ts_info,
1366 .get_fec_stats = otx2_get_fec_stats,
1367 .get_fecparam = otx2_get_fecparam,
1368 .set_fecparam = otx2_set_fecparam,
1369 .get_link_ksettings = otx2_get_link_ksettings,
1370 .set_link_ksettings = otx2_set_link_ksettings,
1371 };
1372
otx2_set_ethtool_ops(struct net_device * netdev)1373 void otx2_set_ethtool_ops(struct net_device *netdev)
1374 {
1375 netdev->ethtool_ops = &otx2_ethtool_ops;
1376 }
1377
1378 /* VF's ethtool APIs */
otx2vf_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * info)1379 static void otx2vf_get_drvinfo(struct net_device *netdev,
1380 struct ethtool_drvinfo *info)
1381 {
1382 struct otx2_nic *vf = netdev_priv(netdev);
1383
1384 strscpy(info->driver, DRV_VF_NAME, sizeof(info->driver));
1385 strscpy(info->bus_info, pci_name(vf->pdev), sizeof(info->bus_info));
1386 }
1387
otx2vf_get_strings(struct net_device * netdev,u32 sset,u8 * data)1388 static void otx2vf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
1389 {
1390 struct otx2_nic *vf = netdev_priv(netdev);
1391 int stats;
1392
1393 if (sset != ETH_SS_STATS)
1394 return;
1395
1396 for (stats = 0; stats < otx2_n_dev_stats; stats++)
1397 ethtool_puts(&data, otx2_dev_stats[stats].name);
1398
1399 for (stats = 0; stats < otx2_n_drv_stats; stats++)
1400 ethtool_puts(&data, otx2_drv_stats[stats].name);
1401
1402 otx2_get_qset_strings(vf, &data, 0);
1403
1404 ethtool_puts(&data, "reset_count");
1405 }
1406
otx2vf_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)1407 static void otx2vf_get_ethtool_stats(struct net_device *netdev,
1408 struct ethtool_stats *stats, u64 *data)
1409 {
1410 struct otx2_nic *vf = netdev_priv(netdev);
1411 int stat;
1412
1413 otx2_get_dev_stats(vf);
1414 for (stat = 0; stat < otx2_n_dev_stats; stat++)
1415 *(data++) = ((u64 *)&vf->hw.dev_stats)
1416 [otx2_dev_stats[stat].index];
1417
1418 for (stat = 0; stat < otx2_n_drv_stats; stat++)
1419 *(data++) = atomic_read(&((atomic_t *)&vf->hw.drv_stats)
1420 [otx2_drv_stats[stat].index]);
1421
1422 otx2_get_qset_stats(vf, stats, &data);
1423 *(data++) = vf->reset_count;
1424 }
1425
otx2vf_get_sset_count(struct net_device * netdev,int sset)1426 static int otx2vf_get_sset_count(struct net_device *netdev, int sset)
1427 {
1428 struct otx2_nic *vf = netdev_priv(netdev);
1429 int qstats_count;
1430
1431 if (sset != ETH_SS_STATS)
1432 return -EINVAL;
1433
1434 qstats_count = otx2_n_queue_stats *
1435 (vf->hw.rx_queues + otx2_get_total_tx_queues(vf));
1436
1437 return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count + 1;
1438 }
1439
otx2vf_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)1440 static int otx2vf_get_link_ksettings(struct net_device *netdev,
1441 struct ethtool_link_ksettings *cmd)
1442 {
1443 struct otx2_nic *pfvf = netdev_priv(netdev);
1444
1445 if (is_otx2_lbkvf(pfvf->pdev) || is_otx2_sdp_rep(pfvf->pdev)) {
1446 cmd->base.duplex = DUPLEX_FULL;
1447 cmd->base.speed = SPEED_100000;
1448 } else {
1449 return otx2_get_link_ksettings(netdev, cmd);
1450 }
1451 return 0;
1452 }
1453
1454 static const struct ethtool_ops otx2vf_ethtool_ops = {
1455 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1456 ETHTOOL_COALESCE_MAX_FRAMES |
1457 ETHTOOL_COALESCE_USE_ADAPTIVE,
1458 .supported_ring_params = ETHTOOL_RING_USE_RX_BUF_LEN |
1459 ETHTOOL_RING_USE_CQE_SIZE,
1460 .rxfh_max_num_contexts = MAX_RSS_GROUPS,
1461 .get_link = otx2_get_link,
1462 .get_drvinfo = otx2vf_get_drvinfo,
1463 .get_strings = otx2vf_get_strings,
1464 .get_ethtool_stats = otx2vf_get_ethtool_stats,
1465 .get_sset_count = otx2vf_get_sset_count,
1466 .set_channels = otx2_set_channels,
1467 .get_channels = otx2_get_channels,
1468 .get_rxnfc = otx2_get_rxnfc,
1469 .set_rxnfc = otx2_set_rxnfc,
1470 .get_rx_ring_count = otx2_get_rx_ring_count,
1471 .get_rxfh_key_size = otx2_get_rxfh_key_size,
1472 .get_rxfh_indir_size = otx2_get_rxfh_indir_size,
1473 .get_rxfh = otx2_get_rxfh,
1474 .set_rxfh = otx2_set_rxfh,
1475 .get_rxfh_fields = otx2_get_rss_hash_opts,
1476 .set_rxfh_fields = otx2_set_rss_hash_opts,
1477 .create_rxfh_context = otx2_create_rxfh,
1478 .modify_rxfh_context = otx2_modify_rxfh,
1479 .remove_rxfh_context = otx2_remove_rxfh,
1480 .get_ringparam = otx2_get_ringparam,
1481 .set_ringparam = otx2_set_ringparam,
1482 .get_coalesce = otx2_get_coalesce,
1483 .set_coalesce = otx2_set_coalesce,
1484 .get_msglevel = otx2_get_msglevel,
1485 .set_msglevel = otx2_set_msglevel,
1486 .get_pauseparam = otx2_get_pauseparam,
1487 .set_pauseparam = otx2_set_pauseparam,
1488 .get_link_ksettings = otx2vf_get_link_ksettings,
1489 .get_ts_info = otx2_get_ts_info,
1490 };
1491
otx2vf_set_ethtool_ops(struct net_device * netdev)1492 void otx2vf_set_ethtool_ops(struct net_device *netdev)
1493 {
1494 netdev->ethtool_ops = &otx2vf_ethtool_ops;
1495 }
1496 EXPORT_SYMBOL(otx2vf_set_ethtool_ops);
1497