1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
3 
4 #include <linux/module.h>
5 #include <linux/netdevice.h>
6 #include <linux/sfp.h>
7 
8 #include "ionic.h"
9 #include "ionic_bus.h"
10 #include "ionic_lif.h"
11 #include "ionic_ethtool.h"
12 #include "ionic_stats.h"
13 
ionic_get_stats_strings(struct ionic_lif * lif,u8 * buf)14 static void ionic_get_stats_strings(struct ionic_lif *lif, u8 *buf)
15 {
16 	u32 i;
17 
18 	for (i = 0; i < ionic_num_stats_grps; i++)
19 		ionic_stats_groups[i].get_strings(lif, &buf);
20 }
21 
ionic_get_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * buf)22 static void ionic_get_stats(struct net_device *netdev,
23 			    struct ethtool_stats *stats, u64 *buf)
24 {
25 	struct ionic_lif *lif = netdev_priv(netdev);
26 	u32 i;
27 
28 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
29 		return;
30 
31 	memset(buf, 0, stats->n_stats * sizeof(*buf));
32 	for (i = 0; i < ionic_num_stats_grps; i++)
33 		ionic_stats_groups[i].get_values(lif, &buf);
34 }
35 
ionic_get_stats_count(struct ionic_lif * lif)36 static int ionic_get_stats_count(struct ionic_lif *lif)
37 {
38 	int i, num_stats = 0;
39 
40 	for (i = 0; i < ionic_num_stats_grps; i++)
41 		num_stats += ionic_stats_groups[i].get_count(lif);
42 
43 	return num_stats;
44 }
45 
ionic_get_sset_count(struct net_device * netdev,int sset)46 static int ionic_get_sset_count(struct net_device *netdev, int sset)
47 {
48 	struct ionic_lif *lif = netdev_priv(netdev);
49 	int count = 0;
50 
51 	switch (sset) {
52 	case ETH_SS_STATS:
53 		count = ionic_get_stats_count(lif);
54 		break;
55 	}
56 	return count;
57 }
58 
ionic_get_strings(struct net_device * netdev,u32 sset,u8 * buf)59 static void ionic_get_strings(struct net_device *netdev,
60 			      u32 sset, u8 *buf)
61 {
62 	struct ionic_lif *lif = netdev_priv(netdev);
63 
64 	switch (sset) {
65 	case ETH_SS_STATS:
66 		ionic_get_stats_strings(lif, buf);
67 		break;
68 	}
69 }
70 
ionic_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)71 static void ionic_get_drvinfo(struct net_device *netdev,
72 			      struct ethtool_drvinfo *drvinfo)
73 {
74 	struct ionic_lif *lif = netdev_priv(netdev);
75 	struct ionic *ionic = lif->ionic;
76 
77 	strscpy(drvinfo->driver, IONIC_DRV_NAME, sizeof(drvinfo->driver));
78 	strscpy(drvinfo->fw_version, ionic->idev.dev_info.fw_version,
79 		sizeof(drvinfo->fw_version));
80 	strscpy(drvinfo->bus_info, ionic_bus_info(ionic),
81 		sizeof(drvinfo->bus_info));
82 }
83 
ionic_get_regs_len(struct net_device * netdev)84 static int ionic_get_regs_len(struct net_device *netdev)
85 {
86 	return (IONIC_DEV_INFO_REG_COUNT + IONIC_DEV_CMD_REG_COUNT) * sizeof(u32);
87 }
88 
ionic_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)89 static void ionic_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
90 			   void *p)
91 {
92 	struct ionic_lif *lif = netdev_priv(netdev);
93 	struct ionic_dev *idev;
94 	unsigned int offset;
95 	unsigned int size;
96 
97 	regs->version = IONIC_DEV_CMD_REG_VERSION;
98 
99 	idev = &lif->ionic->idev;
100 	if (!idev->dev_info_regs)
101 		return;
102 
103 	offset = 0;
104 	size = IONIC_DEV_INFO_REG_COUNT * sizeof(u32);
105 	memcpy_fromio(p + offset, lif->ionic->idev.dev_info_regs->words, size);
106 
107 	offset += size;
108 	size = IONIC_DEV_CMD_REG_COUNT * sizeof(u32);
109 	memcpy_fromio(p + offset, idev->dev_cmd_regs->words, size);
110 }
111 
ionic_get_link_ext_stats(struct net_device * netdev,struct ethtool_link_ext_stats * stats)112 static void ionic_get_link_ext_stats(struct net_device *netdev,
113 				     struct ethtool_link_ext_stats *stats)
114 {
115 	struct ionic_lif *lif = netdev_priv(netdev);
116 
117 	if (lif->ionic->pdev->is_physfn)
118 		stats->link_down_events = lif->link_down_count;
119 }
120 
ionic_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * ks)121 static int ionic_get_link_ksettings(struct net_device *netdev,
122 				    struct ethtool_link_ksettings *ks)
123 {
124 	struct ionic_lif *lif = netdev_priv(netdev);
125 	struct ionic_dev *idev = &lif->ionic->idev;
126 	int copper_seen = 0;
127 
128 	ethtool_link_ksettings_zero_link_mode(ks, supported);
129 
130 	if (!idev->port_info) {
131 		netdev_err(netdev, "port_info not initialized\n");
132 		return -EOPNOTSUPP;
133 	}
134 
135 	/* The port_info data is found in a DMA space that the NIC keeps
136 	 * up-to-date, so there's no need to request the data from the
137 	 * NIC, we already have it in our memory space.
138 	 */
139 
140 	switch (le16_to_cpu(idev->port_info->status.xcvr.pid)) {
141 		/* Copper */
142 	case IONIC_XCVR_PID_QSFP_100G_CR4:
143 		ethtool_link_ksettings_add_link_mode(ks, supported,
144 						     100000baseCR4_Full);
145 		copper_seen++;
146 		break;
147 	case IONIC_XCVR_PID_QSFP_40GBASE_CR4:
148 		ethtool_link_ksettings_add_link_mode(ks, supported,
149 						     40000baseCR4_Full);
150 		copper_seen++;
151 		break;
152 	case IONIC_XCVR_PID_SFP_25GBASE_CR_S:
153 	case IONIC_XCVR_PID_SFP_25GBASE_CR_L:
154 	case IONIC_XCVR_PID_SFP_25GBASE_CR_N:
155 		ethtool_link_ksettings_add_link_mode(ks, supported,
156 						     25000baseCR_Full);
157 		copper_seen++;
158 		break;
159 	case IONIC_XCVR_PID_SFP_10GBASE_AOC:
160 	case IONIC_XCVR_PID_SFP_10GBASE_CU:
161 		ethtool_link_ksettings_add_link_mode(ks, supported,
162 						     10000baseCR_Full);
163 		copper_seen++;
164 		break;
165 
166 		/* Fibre */
167 	case IONIC_XCVR_PID_QSFP_100G_SR4:
168 	case IONIC_XCVR_PID_QSFP_100G_AOC:
169 		ethtool_link_ksettings_add_link_mode(ks, supported,
170 						     100000baseSR4_Full);
171 		break;
172 	case IONIC_XCVR_PID_QSFP_100G_CWDM4:
173 	case IONIC_XCVR_PID_QSFP_100G_PSM4:
174 	case IONIC_XCVR_PID_QSFP_100G_LR4:
175 		ethtool_link_ksettings_add_link_mode(ks, supported,
176 						     100000baseLR4_ER4_Full);
177 		break;
178 	case IONIC_XCVR_PID_QSFP_100G_ER4:
179 		ethtool_link_ksettings_add_link_mode(ks, supported,
180 						     100000baseLR4_ER4_Full);
181 		break;
182 	case IONIC_XCVR_PID_QSFP_40GBASE_SR4:
183 	case IONIC_XCVR_PID_QSFP_40GBASE_AOC:
184 		ethtool_link_ksettings_add_link_mode(ks, supported,
185 						     40000baseSR4_Full);
186 		break;
187 	case IONIC_XCVR_PID_QSFP_40GBASE_LR4:
188 		ethtool_link_ksettings_add_link_mode(ks, supported,
189 						     40000baseLR4_Full);
190 		break;
191 	case IONIC_XCVR_PID_SFP_25GBASE_SR:
192 	case IONIC_XCVR_PID_SFP_25GBASE_AOC:
193 	case IONIC_XCVR_PID_SFP_25GBASE_ACC:
194 		ethtool_link_ksettings_add_link_mode(ks, supported,
195 						     25000baseSR_Full);
196 		break;
197 	case IONIC_XCVR_PID_SFP_10GBASE_SR:
198 		ethtool_link_ksettings_add_link_mode(ks, supported,
199 						     10000baseSR_Full);
200 		break;
201 	case IONIC_XCVR_PID_SFP_10GBASE_LR:
202 		ethtool_link_ksettings_add_link_mode(ks, supported,
203 						     10000baseLR_Full);
204 		break;
205 	case IONIC_XCVR_PID_SFP_10GBASE_LRM:
206 		ethtool_link_ksettings_add_link_mode(ks, supported,
207 						     10000baseLRM_Full);
208 		break;
209 	case IONIC_XCVR_PID_SFP_10GBASE_ER:
210 		ethtool_link_ksettings_add_link_mode(ks, supported,
211 						     10000baseER_Full);
212 		break;
213 	case IONIC_XCVR_PID_SFP_10GBASE_T:
214 		ethtool_link_ksettings_add_link_mode(ks, supported,
215 						     10000baseT_Full);
216 		break;
217 	case IONIC_XCVR_PID_SFP_1000BASE_T:
218 		ethtool_link_ksettings_add_link_mode(ks, supported,
219 						     1000baseT_Full);
220 		break;
221 	case IONIC_XCVR_PID_UNKNOWN:
222 		/* This means there's no module plugged in */
223 		break;
224 	default:
225 		dev_info(lif->ionic->dev, "unknown xcvr type pid=%d / 0x%x\n",
226 			 idev->port_info->status.xcvr.pid,
227 			 idev->port_info->status.xcvr.pid);
228 		break;
229 	}
230 
231 	linkmode_copy(ks->link_modes.advertising, ks->link_modes.supported);
232 
233 	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
234 	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
235 	if (idev->port_info->config.fec_type == IONIC_PORT_FEC_TYPE_FC)
236 		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_BASER);
237 	else if (idev->port_info->config.fec_type == IONIC_PORT_FEC_TYPE_RS)
238 		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
239 
240 	ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
241 	ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
242 
243 	if (idev->port_info->status.xcvr.phy == IONIC_PHY_TYPE_COPPER ||
244 	    copper_seen)
245 		ks->base.port = PORT_DA;
246 	else if (idev->port_info->status.xcvr.phy == IONIC_PHY_TYPE_FIBER)
247 		ks->base.port = PORT_FIBRE;
248 	else
249 		ks->base.port = PORT_NONE;
250 
251 	if (ks->base.port != PORT_NONE) {
252 		ks->base.speed = le32_to_cpu(lif->info->status.link_speed);
253 
254 		if (le16_to_cpu(lif->info->status.link_status))
255 			ks->base.duplex = DUPLEX_FULL;
256 		else
257 			ks->base.duplex = DUPLEX_UNKNOWN;
258 
259 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
260 
261 		if (idev->port_info->config.an_enable) {
262 			ethtool_link_ksettings_add_link_mode(ks, advertising,
263 							     Autoneg);
264 			ks->base.autoneg = AUTONEG_ENABLE;
265 		}
266 	}
267 
268 	return 0;
269 }
270 
ionic_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * ks)271 static int ionic_set_link_ksettings(struct net_device *netdev,
272 				    const struct ethtool_link_ksettings *ks)
273 {
274 	struct ionic_lif *lif = netdev_priv(netdev);
275 	struct ionic_dev *idev = &lif->ionic->idev;
276 	struct ionic *ionic = lif->ionic;
277 	int err = 0;
278 
279 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
280 		return -EBUSY;
281 
282 	/* set autoneg */
283 	if (ks->base.autoneg != idev->port_info->config.an_enable) {
284 		mutex_lock(&ionic->dev_cmd_lock);
285 		ionic_dev_cmd_port_autoneg(idev, ks->base.autoneg);
286 		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
287 		mutex_unlock(&ionic->dev_cmd_lock);
288 		if (err)
289 			return err;
290 	}
291 
292 	/* set speed */
293 	if (ks->base.speed != le32_to_cpu(idev->port_info->config.speed)) {
294 		mutex_lock(&ionic->dev_cmd_lock);
295 		ionic_dev_cmd_port_speed(idev, ks->base.speed);
296 		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
297 		mutex_unlock(&ionic->dev_cmd_lock);
298 		if (err)
299 			return err;
300 	}
301 
302 	return 0;
303 }
304 
ionic_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)305 static void ionic_get_pauseparam(struct net_device *netdev,
306 				 struct ethtool_pauseparam *pause)
307 {
308 	struct ionic_lif *lif = netdev_priv(netdev);
309 	u8 pause_type;
310 
311 	pause->autoneg = 0;
312 
313 	pause_type = lif->ionic->idev.port_info->config.pause_type;
314 	if (pause_type) {
315 		pause->rx_pause = (pause_type & IONIC_PAUSE_F_RX) ? 1 : 0;
316 		pause->tx_pause = (pause_type & IONIC_PAUSE_F_TX) ? 1 : 0;
317 	}
318 }
319 
ionic_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)320 static int ionic_set_pauseparam(struct net_device *netdev,
321 				struct ethtool_pauseparam *pause)
322 {
323 	struct ionic_lif *lif = netdev_priv(netdev);
324 	struct ionic *ionic = lif->ionic;
325 	u32 requested_pause;
326 	int err;
327 
328 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
329 		return -EBUSY;
330 
331 	if (pause->autoneg)
332 		return -EOPNOTSUPP;
333 
334 	/* change both at the same time */
335 	requested_pause = IONIC_PORT_PAUSE_TYPE_LINK;
336 	if (pause->rx_pause)
337 		requested_pause |= IONIC_PAUSE_F_RX;
338 	if (pause->tx_pause)
339 		requested_pause |= IONIC_PAUSE_F_TX;
340 
341 	if (requested_pause == lif->ionic->idev.port_info->config.pause_type)
342 		return 0;
343 
344 	mutex_lock(&ionic->dev_cmd_lock);
345 	ionic_dev_cmd_port_pause(&lif->ionic->idev, requested_pause);
346 	err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
347 	mutex_unlock(&ionic->dev_cmd_lock);
348 	if (err)
349 		return err;
350 
351 	return 0;
352 }
353 
ionic_get_fecparam(struct net_device * netdev,struct ethtool_fecparam * fec)354 static int ionic_get_fecparam(struct net_device *netdev,
355 			      struct ethtool_fecparam *fec)
356 {
357 	struct ionic_lif *lif = netdev_priv(netdev);
358 
359 	switch (lif->ionic->idev.port_info->config.fec_type) {
360 	case IONIC_PORT_FEC_TYPE_NONE:
361 		fec->active_fec = ETHTOOL_FEC_OFF;
362 		break;
363 	case IONIC_PORT_FEC_TYPE_RS:
364 		fec->active_fec = ETHTOOL_FEC_RS;
365 		break;
366 	case IONIC_PORT_FEC_TYPE_FC:
367 		fec->active_fec = ETHTOOL_FEC_BASER;
368 		break;
369 	}
370 
371 	fec->fec = ETHTOOL_FEC_OFF | ETHTOOL_FEC_RS | ETHTOOL_FEC_BASER;
372 
373 	return 0;
374 }
375 
ionic_set_fecparam(struct net_device * netdev,struct ethtool_fecparam * fec)376 static int ionic_set_fecparam(struct net_device *netdev,
377 			      struct ethtool_fecparam *fec)
378 {
379 	struct ionic_lif *lif = netdev_priv(netdev);
380 	u8 fec_type;
381 	int ret = 0;
382 
383 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
384 		return -EBUSY;
385 
386 	if (lif->ionic->idev.port_info->config.an_enable) {
387 		netdev_err(netdev, "FEC request not allowed while autoneg is enabled\n");
388 		return -EINVAL;
389 	}
390 
391 	switch (fec->fec) {
392 	case ETHTOOL_FEC_NONE:
393 		fec_type = IONIC_PORT_FEC_TYPE_NONE;
394 		break;
395 	case ETHTOOL_FEC_OFF:
396 		fec_type = IONIC_PORT_FEC_TYPE_NONE;
397 		break;
398 	case ETHTOOL_FEC_RS:
399 		fec_type = IONIC_PORT_FEC_TYPE_RS;
400 		break;
401 	case ETHTOOL_FEC_BASER:
402 		fec_type = IONIC_PORT_FEC_TYPE_FC;
403 		break;
404 	case ETHTOOL_FEC_AUTO:
405 	default:
406 		netdev_err(netdev, "FEC request 0x%04x not supported\n",
407 			   fec->fec);
408 		return -EINVAL;
409 	}
410 
411 	if (fec_type != lif->ionic->idev.port_info->config.fec_type) {
412 		mutex_lock(&lif->ionic->dev_cmd_lock);
413 		ionic_dev_cmd_port_fec(&lif->ionic->idev, fec_type);
414 		ret = ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT);
415 		mutex_unlock(&lif->ionic->dev_cmd_lock);
416 	}
417 
418 	return ret;
419 }
420 
ionic_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)421 static int ionic_get_coalesce(struct net_device *netdev,
422 			      struct ethtool_coalesce *coalesce,
423 			      struct kernel_ethtool_coalesce *kernel_coal,
424 			      struct netlink_ext_ack *extack)
425 {
426 	struct ionic_lif *lif = netdev_priv(netdev);
427 
428 	coalesce->tx_coalesce_usecs = lif->tx_coalesce_usecs;
429 	coalesce->rx_coalesce_usecs = lif->rx_coalesce_usecs;
430 
431 	if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state))
432 		coalesce->use_adaptive_tx_coalesce = test_bit(IONIC_LIF_F_TX_DIM_INTR, lif->state);
433 	else
434 		coalesce->use_adaptive_tx_coalesce = 0;
435 
436 	coalesce->use_adaptive_rx_coalesce = test_bit(IONIC_LIF_F_RX_DIM_INTR, lif->state);
437 
438 	return 0;
439 }
440 
ionic_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)441 static int ionic_set_coalesce(struct net_device *netdev,
442 			      struct ethtool_coalesce *coalesce,
443 			      struct kernel_ethtool_coalesce *kernel_coal,
444 			      struct netlink_ext_ack *extack)
445 {
446 	struct ionic_lif *lif = netdev_priv(netdev);
447 	struct ionic_identity *ident;
448 	u32 rx_coal, rx_dim;
449 	u32 tx_coal, tx_dim;
450 	unsigned int i;
451 
452 	ident = &lif->ionic->ident;
453 	if (ident->dev.intr_coal_div == 0) {
454 		netdev_warn(netdev, "bad HW value in dev.intr_coal_div = %d\n",
455 			    ident->dev.intr_coal_div);
456 		return -EIO;
457 	}
458 
459 	/* Tx normally shares Rx interrupt, so only change Rx if not split */
460 	if (!test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state) &&
461 	    (coalesce->tx_coalesce_usecs != lif->rx_coalesce_usecs ||
462 	     coalesce->use_adaptive_tx_coalesce)) {
463 		netdev_warn(netdev, "only rx parameters can be changed\n");
464 		return -EINVAL;
465 	}
466 
467 	/* Convert the usec request to a HW usable value.  If they asked
468 	 * for non-zero and it resolved to zero, bump it up
469 	 */
470 	rx_coal = ionic_coal_usec_to_hw(lif->ionic, coalesce->rx_coalesce_usecs);
471 	if (!rx_coal && coalesce->rx_coalesce_usecs)
472 		rx_coal = 1;
473 	tx_coal = ionic_coal_usec_to_hw(lif->ionic, coalesce->tx_coalesce_usecs);
474 	if (!tx_coal && coalesce->tx_coalesce_usecs)
475 		tx_coal = 1;
476 
477 	if (rx_coal > IONIC_INTR_CTRL_COAL_MAX ||
478 	    tx_coal > IONIC_INTR_CTRL_COAL_MAX)
479 		return -ERANGE;
480 
481 	/* Save the new values */
482 	lif->rx_coalesce_usecs = coalesce->rx_coalesce_usecs;
483 	lif->rx_coalesce_hw = rx_coal;
484 
485 	if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state))
486 		lif->tx_coalesce_usecs = coalesce->tx_coalesce_usecs;
487 	else
488 		lif->tx_coalesce_usecs = coalesce->rx_coalesce_usecs;
489 	lif->tx_coalesce_hw = tx_coal;
490 
491 	if (coalesce->use_adaptive_rx_coalesce) {
492 		set_bit(IONIC_LIF_F_RX_DIM_INTR, lif->state);
493 		rx_dim = rx_coal;
494 	} else {
495 		clear_bit(IONIC_LIF_F_RX_DIM_INTR, lif->state);
496 		rx_dim = 0;
497 	}
498 
499 	if (coalesce->use_adaptive_tx_coalesce) {
500 		set_bit(IONIC_LIF_F_TX_DIM_INTR, lif->state);
501 		tx_dim = tx_coal;
502 	} else {
503 		clear_bit(IONIC_LIF_F_TX_DIM_INTR, lif->state);
504 		tx_dim = 0;
505 	}
506 
507 	if (test_bit(IONIC_LIF_F_UP, lif->state)) {
508 		for (i = 0; i < lif->nxqs; i++) {
509 			if (lif->rxqcqs[i]->flags & IONIC_QCQ_F_INTR) {
510 				ionic_intr_coal_init(lif->ionic->idev.intr_ctrl,
511 						     lif->rxqcqs[i]->intr.index,
512 						     lif->rx_coalesce_hw);
513 				lif->rxqcqs[i]->intr.dim_coal_hw = rx_dim;
514 			}
515 
516 			if (lif->txqcqs[i]->flags & IONIC_QCQ_F_INTR) {
517 				ionic_intr_coal_init(lif->ionic->idev.intr_ctrl,
518 						     lif->txqcqs[i]->intr.index,
519 						     lif->tx_coalesce_hw);
520 				lif->txqcqs[i]->intr.dim_coal_hw = tx_dim;
521 			}
522 		}
523 	}
524 
525 	return 0;
526 }
527 
ionic_validate_cmb_config(struct ionic_lif * lif,struct ionic_queue_params * qparam)528 static int ionic_validate_cmb_config(struct ionic_lif *lif,
529 				     struct ionic_queue_params *qparam)
530 {
531 	int pages_have, pages_required = 0;
532 	unsigned long sz;
533 
534 	if (!lif->ionic->idev.cmb_inuse &&
535 	    (qparam->cmb_tx || qparam->cmb_rx)) {
536 		netdev_info(lif->netdev, "CMB rings are not supported on this device\n");
537 		return -EOPNOTSUPP;
538 	}
539 
540 	if (qparam->cmb_tx) {
541 		if (!(lif->qtype_info[IONIC_QTYPE_TXQ].features & IONIC_QIDENT_F_CMB)) {
542 			netdev_info(lif->netdev,
543 				    "CMB rings for tx-push are not supported on this device\n");
544 			return -EOPNOTSUPP;
545 		}
546 
547 		sz = sizeof(struct ionic_txq_desc) * qparam->ntxq_descs * qparam->nxqs;
548 		pages_required += ALIGN(sz, PAGE_SIZE) / PAGE_SIZE;
549 	}
550 
551 	if (qparam->cmb_rx) {
552 		if (!(lif->qtype_info[IONIC_QTYPE_RXQ].features & IONIC_QIDENT_F_CMB)) {
553 			netdev_info(lif->netdev,
554 				    "CMB rings for rx-push are not supported on this device\n");
555 			return -EOPNOTSUPP;
556 		}
557 
558 		sz = sizeof(struct ionic_rxq_desc) * qparam->nrxq_descs * qparam->nxqs;
559 		pages_required += ALIGN(sz, PAGE_SIZE) / PAGE_SIZE;
560 	}
561 
562 	pages_have = lif->ionic->bars[IONIC_PCI_BAR_CMB].len / PAGE_SIZE;
563 	if (pages_required > pages_have) {
564 		netdev_info(lif->netdev,
565 			    "Not enough CMB pages for number of queues and size of descriptor rings, need %d have %d",
566 			    pages_required, pages_have);
567 		return -ENOMEM;
568 	}
569 
570 	return pages_required;
571 }
572 
ionic_cmb_rings_toggle(struct ionic_lif * lif,bool cmb_tx,bool cmb_rx)573 static int ionic_cmb_rings_toggle(struct ionic_lif *lif, bool cmb_tx, bool cmb_rx)
574 {
575 	struct ionic_queue_params qparam;
576 	int pages_used;
577 
578 	if (netif_running(lif->netdev)) {
579 		netdev_info(lif->netdev, "Please stop device to toggle CMB for tx/rx-push\n");
580 		return -EBUSY;
581 	}
582 
583 	ionic_init_queue_params(lif, &qparam);
584 	qparam.cmb_tx = cmb_tx;
585 	qparam.cmb_rx = cmb_rx;
586 	pages_used = ionic_validate_cmb_config(lif, &qparam);
587 	if (pages_used < 0)
588 		return pages_used;
589 
590 	if (cmb_tx)
591 		set_bit(IONIC_LIF_F_CMB_TX_RINGS, lif->state);
592 	else
593 		clear_bit(IONIC_LIF_F_CMB_TX_RINGS, lif->state);
594 
595 	if (cmb_rx)
596 		set_bit(IONIC_LIF_F_CMB_RX_RINGS, lif->state);
597 	else
598 		clear_bit(IONIC_LIF_F_CMB_RX_RINGS, lif->state);
599 
600 	if (cmb_tx || cmb_rx)
601 		netdev_info(lif->netdev, "Enabling CMB %s %s rings - %d pages\n",
602 			    cmb_tx ? "TX" : "", cmb_rx ? "RX" : "", pages_used);
603 	else
604 		netdev_info(lif->netdev, "Disabling CMB rings\n");
605 
606 	return 0;
607 }
608 
ionic_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)609 static void ionic_get_ringparam(struct net_device *netdev,
610 				struct ethtool_ringparam *ring,
611 				struct kernel_ethtool_ringparam *kernel_ring,
612 				struct netlink_ext_ack *extack)
613 {
614 	struct ionic_lif *lif = netdev_priv(netdev);
615 
616 	ring->tx_max_pending = IONIC_MAX_TX_DESC;
617 	ring->tx_pending = lif->ntxq_descs;
618 	ring->rx_max_pending = IONIC_MAX_RX_DESC;
619 	ring->rx_pending = lif->nrxq_descs;
620 	kernel_ring->tx_push = test_bit(IONIC_LIF_F_CMB_TX_RINGS, lif->state);
621 	kernel_ring->rx_push = test_bit(IONIC_LIF_F_CMB_RX_RINGS, lif->state);
622 }
623 
ionic_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)624 static int ionic_set_ringparam(struct net_device *netdev,
625 			       struct ethtool_ringparam *ring,
626 			       struct kernel_ethtool_ringparam *kernel_ring,
627 			       struct netlink_ext_ack *extack)
628 {
629 	struct ionic_lif *lif = netdev_priv(netdev);
630 	struct ionic_queue_params qparam;
631 	int err;
632 
633 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
634 		return -EBUSY;
635 
636 	ionic_init_queue_params(lif, &qparam);
637 
638 	if (ring->rx_mini_pending || ring->rx_jumbo_pending) {
639 		netdev_info(netdev, "Changing jumbo or mini descriptors not supported\n");
640 		return -EINVAL;
641 	}
642 
643 	if (!is_power_of_2(ring->tx_pending) ||
644 	    !is_power_of_2(ring->rx_pending)) {
645 		netdev_info(netdev, "Descriptor count must be a power of 2\n");
646 		return -EINVAL;
647 	}
648 
649 	/* if nothing to do return success */
650 	if (ring->tx_pending == lif->ntxq_descs &&
651 	    ring->rx_pending == lif->nrxq_descs &&
652 	    kernel_ring->tx_push == test_bit(IONIC_LIF_F_CMB_TX_RINGS, lif->state) &&
653 	    kernel_ring->rx_push == test_bit(IONIC_LIF_F_CMB_RX_RINGS, lif->state))
654 		return 0;
655 
656 	qparam.ntxq_descs = ring->tx_pending;
657 	qparam.nrxq_descs = ring->rx_pending;
658 	qparam.cmb_tx = kernel_ring->tx_push;
659 	qparam.cmb_rx = kernel_ring->rx_push;
660 
661 	err = ionic_validate_cmb_config(lif, &qparam);
662 	if (err < 0)
663 		return err;
664 
665 	if (kernel_ring->tx_push != test_bit(IONIC_LIF_F_CMB_TX_RINGS, lif->state) ||
666 	    kernel_ring->rx_push != test_bit(IONIC_LIF_F_CMB_RX_RINGS, lif->state)) {
667 		err = ionic_cmb_rings_toggle(lif, kernel_ring->tx_push,
668 					     kernel_ring->rx_push);
669 		if (err < 0)
670 			return err;
671 	}
672 
673 	if (ring->tx_pending != lif->ntxq_descs)
674 		netdev_info(netdev, "Changing Tx ring size from %d to %d\n",
675 			    lif->ntxq_descs, ring->tx_pending);
676 
677 	if (ring->rx_pending != lif->nrxq_descs)
678 		netdev_info(netdev, "Changing Rx ring size from %d to %d\n",
679 			    lif->nrxq_descs, ring->rx_pending);
680 
681 	/* if we're not running, just set the values and return */
682 	if (!netif_running(lif->netdev)) {
683 		lif->ntxq_descs = ring->tx_pending;
684 		lif->nrxq_descs = ring->rx_pending;
685 		return 0;
686 	}
687 
688 	mutex_lock(&lif->queue_lock);
689 	err = ionic_reconfigure_queues(lif, &qparam);
690 	mutex_unlock(&lif->queue_lock);
691 	if (err)
692 		netdev_info(netdev, "Ring reconfiguration failed, changes canceled: %d\n", err);
693 
694 	return err;
695 }
696 
ionic_get_channels(struct net_device * netdev,struct ethtool_channels * ch)697 static void ionic_get_channels(struct net_device *netdev,
698 			       struct ethtool_channels *ch)
699 {
700 	struct ionic_lif *lif = netdev_priv(netdev);
701 
702 	/* report maximum channels */
703 	ch->max_combined = lif->ionic->ntxqs_per_lif;
704 	ch->max_rx = lif->ionic->ntxqs_per_lif / 2;
705 	ch->max_tx = lif->ionic->ntxqs_per_lif / 2;
706 
707 	/* report current channels */
708 	if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state)) {
709 		ch->rx_count = lif->nxqs;
710 		ch->tx_count = lif->nxqs;
711 	} else {
712 		ch->combined_count = lif->nxqs;
713 	}
714 }
715 
ionic_set_channels(struct net_device * netdev,struct ethtool_channels * ch)716 static int ionic_set_channels(struct net_device *netdev,
717 			      struct ethtool_channels *ch)
718 {
719 	struct ionic_lif *lif = netdev_priv(netdev);
720 	struct ionic_queue_params qparam;
721 	int max_cnt;
722 	int err;
723 
724 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
725 		return -EBUSY;
726 
727 	ionic_init_queue_params(lif, &qparam);
728 
729 	if (ch->rx_count != ch->tx_count) {
730 		netdev_info(netdev, "The rx and tx count must be equal\n");
731 		return -EINVAL;
732 	}
733 
734 	if (ch->combined_count && ch->rx_count) {
735 		netdev_info(netdev, "Use either combined or rx and tx, not both\n");
736 		return -EINVAL;
737 	}
738 
739 	max_cnt = lif->ionic->ntxqs_per_lif;
740 	if (ch->combined_count) {
741 		if (ch->combined_count > max_cnt)
742 			return -EINVAL;
743 
744 		if (test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state))
745 			netdev_info(lif->netdev, "Sharing queue interrupts\n");
746 		else if (ch->combined_count == lif->nxqs)
747 			return 0;
748 
749 		if (lif->nxqs != ch->combined_count)
750 			netdev_info(netdev, "Changing queue count from %d to %d\n",
751 				    lif->nxqs, ch->combined_count);
752 
753 		qparam.nxqs = ch->combined_count;
754 		qparam.intr_split = false;
755 	} else {
756 		max_cnt /= 2;
757 		if (ch->rx_count > max_cnt)
758 			return -EINVAL;
759 
760 		if (!test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state))
761 			netdev_info(lif->netdev, "Splitting queue interrupts\n");
762 		else if (ch->rx_count == lif->nxqs)
763 			return 0;
764 
765 		if (lif->nxqs != ch->rx_count)
766 			netdev_info(netdev, "Changing queue count from %d to %d\n",
767 				    lif->nxqs, ch->rx_count);
768 
769 		qparam.nxqs = ch->rx_count;
770 		qparam.intr_split = true;
771 	}
772 
773 	err = ionic_validate_cmb_config(lif, &qparam);
774 	if (err < 0)
775 		return err;
776 
777 	/* if we're not running, just set the values and return */
778 	if (!netif_running(lif->netdev)) {
779 		lif->nxqs = qparam.nxqs;
780 
781 		if (qparam.intr_split) {
782 			set_bit(IONIC_LIF_F_SPLIT_INTR, lif->state);
783 		} else {
784 			clear_bit(IONIC_LIF_F_SPLIT_INTR, lif->state);
785 			lif->tx_coalesce_usecs = lif->rx_coalesce_usecs;
786 			lif->tx_coalesce_hw = lif->rx_coalesce_hw;
787 		}
788 		return 0;
789 	}
790 
791 	mutex_lock(&lif->queue_lock);
792 	err = ionic_reconfigure_queues(lif, &qparam);
793 	mutex_unlock(&lif->queue_lock);
794 	if (err)
795 		netdev_info(netdev, "Queue reconfiguration failed, changes canceled: %d\n", err);
796 
797 	return err;
798 }
799 
ionic_get_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * info,u32 * rules)800 static int ionic_get_rxnfc(struct net_device *netdev,
801 			   struct ethtool_rxnfc *info, u32 *rules)
802 {
803 	struct ionic_lif *lif = netdev_priv(netdev);
804 	int err = 0;
805 
806 	switch (info->cmd) {
807 	case ETHTOOL_GRXRINGS:
808 		info->data = lif->nxqs;
809 		break;
810 	default:
811 		netdev_dbg(netdev, "Command parameter %d is not supported\n",
812 			   info->cmd);
813 		err = -EOPNOTSUPP;
814 	}
815 
816 	return err;
817 }
818 
ionic_get_rxfh_indir_size(struct net_device * netdev)819 static u32 ionic_get_rxfh_indir_size(struct net_device *netdev)
820 {
821 	struct ionic_lif *lif = netdev_priv(netdev);
822 
823 	return le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
824 }
825 
ionic_get_rxfh_key_size(struct net_device * netdev)826 static u32 ionic_get_rxfh_key_size(struct net_device *netdev)
827 {
828 	return IONIC_RSS_HASH_KEY_SIZE;
829 }
830 
ionic_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)831 static int ionic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
832 			  u8 *hfunc)
833 {
834 	struct ionic_lif *lif = netdev_priv(netdev);
835 	unsigned int i, tbl_sz;
836 
837 	if (indir) {
838 		tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
839 		for (i = 0; i < tbl_sz; i++)
840 			indir[i] = lif->rss_ind_tbl[i];
841 	}
842 
843 	if (key)
844 		memcpy(key, lif->rss_hash_key, IONIC_RSS_HASH_KEY_SIZE);
845 
846 	if (hfunc)
847 		*hfunc = ETH_RSS_HASH_TOP;
848 
849 	return 0;
850 }
851 
ionic_set_rxfh(struct net_device * netdev,const u32 * indir,const u8 * key,const u8 hfunc)852 static int ionic_set_rxfh(struct net_device *netdev, const u32 *indir,
853 			  const u8 *key, const u8 hfunc)
854 {
855 	struct ionic_lif *lif = netdev_priv(netdev);
856 
857 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
858 		return -EOPNOTSUPP;
859 
860 	return ionic_lif_rss_config(lif, lif->rss_types, key, indir);
861 }
862 
ionic_set_tunable(struct net_device * dev,const struct ethtool_tunable * tuna,const void * data)863 static int ionic_set_tunable(struct net_device *dev,
864 			     const struct ethtool_tunable *tuna,
865 			     const void *data)
866 {
867 	struct ionic_lif *lif = netdev_priv(dev);
868 
869 	switch (tuna->id) {
870 	case ETHTOOL_RX_COPYBREAK:
871 		lif->rx_copybreak = *(u32 *)data;
872 		break;
873 	default:
874 		return -EOPNOTSUPP;
875 	}
876 
877 	return 0;
878 }
879 
ionic_get_tunable(struct net_device * netdev,const struct ethtool_tunable * tuna,void * data)880 static int ionic_get_tunable(struct net_device *netdev,
881 			     const struct ethtool_tunable *tuna, void *data)
882 {
883 	struct ionic_lif *lif = netdev_priv(netdev);
884 
885 	switch (tuna->id) {
886 	case ETHTOOL_RX_COPYBREAK:
887 		*(u32 *)data = lif->rx_copybreak;
888 		break;
889 	default:
890 		return -EOPNOTSUPP;
891 	}
892 
893 	return 0;
894 }
895 
ionic_get_module_info(struct net_device * netdev,struct ethtool_modinfo * modinfo)896 static int ionic_get_module_info(struct net_device *netdev,
897 				 struct ethtool_modinfo *modinfo)
898 
899 {
900 	struct ionic_lif *lif = netdev_priv(netdev);
901 	struct ionic_dev *idev = &lif->ionic->idev;
902 	struct ionic_xcvr_status *xcvr;
903 	struct sfp_eeprom_base *sfp;
904 
905 	xcvr = &idev->port_info->status.xcvr;
906 	sfp = (struct sfp_eeprom_base *) xcvr->sprom;
907 
908 	/* report the module data type and length */
909 	switch (sfp->phys_id) {
910 	case SFF8024_ID_SFP:
911 		modinfo->type = ETH_MODULE_SFF_8079;
912 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
913 		break;
914 	case SFF8024_ID_QSFP_8436_8636:
915 	case SFF8024_ID_QSFP28_8636:
916 		modinfo->type = ETH_MODULE_SFF_8436;
917 		modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
918 		break;
919 	default:
920 		netdev_info(netdev, "unknown xcvr type 0x%02x\n",
921 			    xcvr->sprom[0]);
922 		modinfo->type = 0;
923 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
924 		break;
925 	}
926 
927 	return 0;
928 }
929 
ionic_get_module_eeprom(struct net_device * netdev,struct ethtool_eeprom * ee,u8 * data)930 static int ionic_get_module_eeprom(struct net_device *netdev,
931 				   struct ethtool_eeprom *ee,
932 				   u8 *data)
933 {
934 	struct ionic_lif *lif = netdev_priv(netdev);
935 	struct ionic_dev *idev = &lif->ionic->idev;
936 	struct ionic_xcvr_status *xcvr;
937 	char tbuf[sizeof(xcvr->sprom)];
938 	int count = 10;
939 	u32 len;
940 
941 	/* The NIC keeps the module prom up-to-date in the DMA space
942 	 * so we can simply copy the module bytes into the data buffer.
943 	 */
944 	xcvr = &idev->port_info->status.xcvr;
945 	len = min_t(u32, sizeof(xcvr->sprom), ee->len);
946 
947 	do {
948 		memcpy(data, xcvr->sprom, len);
949 		memcpy(tbuf, xcvr->sprom, len);
950 
951 		/* Let's make sure we got a consistent copy */
952 		if (!memcmp(data, tbuf, len))
953 			break;
954 
955 	} while (--count);
956 
957 	if (!count)
958 		return -ETIMEDOUT;
959 
960 	return 0;
961 }
962 
ionic_get_ts_info(struct net_device * netdev,struct ethtool_ts_info * info)963 static int ionic_get_ts_info(struct net_device *netdev,
964 			     struct ethtool_ts_info *info)
965 {
966 	struct ionic_lif *lif = netdev_priv(netdev);
967 	struct ionic *ionic = lif->ionic;
968 	__le64 mask;
969 
970 	if (!lif->phc || !lif->phc->ptp)
971 		return ethtool_op_get_ts_info(netdev, info);
972 
973 	info->phc_index = ptp_clock_index(lif->phc->ptp);
974 
975 	info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
976 				SOF_TIMESTAMPING_RX_SOFTWARE |
977 				SOF_TIMESTAMPING_SOFTWARE |
978 				SOF_TIMESTAMPING_TX_HARDWARE |
979 				SOF_TIMESTAMPING_RX_HARDWARE |
980 				SOF_TIMESTAMPING_RAW_HARDWARE;
981 
982 	/* tx modes */
983 
984 	info->tx_types = BIT(HWTSTAMP_TX_OFF) |
985 			 BIT(HWTSTAMP_TX_ON);
986 
987 	mask = cpu_to_le64(BIT_ULL(IONIC_TXSTAMP_ONESTEP_SYNC));
988 	if (ionic->ident.lif.eth.hwstamp_tx_modes & mask)
989 		info->tx_types |= BIT(HWTSTAMP_TX_ONESTEP_SYNC);
990 
991 	mask = cpu_to_le64(BIT_ULL(IONIC_TXSTAMP_ONESTEP_P2P));
992 	if (ionic->ident.lif.eth.hwstamp_tx_modes & mask)
993 		info->tx_types |= BIT(HWTSTAMP_TX_ONESTEP_P2P);
994 
995 	/* rx filters */
996 
997 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
998 			   BIT(HWTSTAMP_FILTER_ALL);
999 
1000 	mask = cpu_to_le64(IONIC_PKT_CLS_NTP_ALL);
1001 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1002 		info->rx_filters |= BIT(HWTSTAMP_FILTER_NTP_ALL);
1003 
1004 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP1_SYNC);
1005 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1006 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC);
1007 
1008 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP1_DREQ);
1009 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1010 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ);
1011 
1012 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP1_ALL);
1013 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1014 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT);
1015 
1016 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_L4_SYNC);
1017 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1018 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC);
1019 
1020 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_L4_DREQ);
1021 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1022 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
1023 
1024 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_L4_ALL);
1025 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1026 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT);
1027 
1028 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_L2_SYNC);
1029 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1030 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC);
1031 
1032 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_L2_DREQ);
1033 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1034 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
1035 
1036 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_L2_ALL);
1037 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1038 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT);
1039 
1040 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_SYNC);
1041 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1042 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_SYNC);
1043 
1044 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_DREQ);
1045 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1046 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ);
1047 
1048 	mask = cpu_to_le64(IONIC_PKT_CLS_PTP2_ALL);
1049 	if ((ionic->ident.lif.eth.hwstamp_rx_filters & mask) == mask)
1050 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1051 
1052 	return 0;
1053 }
1054 
ionic_nway_reset(struct net_device * netdev)1055 static int ionic_nway_reset(struct net_device *netdev)
1056 {
1057 	struct ionic_lif *lif = netdev_priv(netdev);
1058 	struct ionic *ionic = lif->ionic;
1059 	int err = 0;
1060 
1061 	if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
1062 		return -EBUSY;
1063 
1064 	/* flap the link to force auto-negotiation */
1065 
1066 	mutex_lock(&ionic->dev_cmd_lock);
1067 
1068 	ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_DOWN);
1069 	err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
1070 
1071 	if (!err) {
1072 		ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_UP);
1073 		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
1074 	}
1075 
1076 	mutex_unlock(&ionic->dev_cmd_lock);
1077 
1078 	return err;
1079 }
1080 
1081 static const struct ethtool_ops ionic_ethtool_ops = {
1082 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1083 				     ETHTOOL_COALESCE_USE_ADAPTIVE_RX |
1084 				     ETHTOOL_COALESCE_USE_ADAPTIVE_TX,
1085 	.supported_ring_params = ETHTOOL_RING_USE_TX_PUSH |
1086 				 ETHTOOL_RING_USE_RX_PUSH,
1087 	.get_drvinfo		= ionic_get_drvinfo,
1088 	.get_regs_len		= ionic_get_regs_len,
1089 	.get_regs		= ionic_get_regs,
1090 	.get_link		= ethtool_op_get_link,
1091 	.get_link_ext_stats	= ionic_get_link_ext_stats,
1092 	.get_link_ksettings	= ionic_get_link_ksettings,
1093 	.set_link_ksettings	= ionic_set_link_ksettings,
1094 	.get_coalesce		= ionic_get_coalesce,
1095 	.set_coalesce		= ionic_set_coalesce,
1096 	.get_ringparam		= ionic_get_ringparam,
1097 	.set_ringparam		= ionic_set_ringparam,
1098 	.get_channels		= ionic_get_channels,
1099 	.set_channels		= ionic_set_channels,
1100 	.get_strings		= ionic_get_strings,
1101 	.get_ethtool_stats	= ionic_get_stats,
1102 	.get_sset_count		= ionic_get_sset_count,
1103 	.get_rxnfc		= ionic_get_rxnfc,
1104 	.get_rxfh_indir_size	= ionic_get_rxfh_indir_size,
1105 	.get_rxfh_key_size	= ionic_get_rxfh_key_size,
1106 	.get_rxfh		= ionic_get_rxfh,
1107 	.set_rxfh		= ionic_set_rxfh,
1108 	.get_tunable		= ionic_get_tunable,
1109 	.set_tunable		= ionic_set_tunable,
1110 	.get_module_info	= ionic_get_module_info,
1111 	.get_module_eeprom	= ionic_get_module_eeprom,
1112 	.get_pauseparam		= ionic_get_pauseparam,
1113 	.set_pauseparam		= ionic_set_pauseparam,
1114 	.get_fecparam		= ionic_get_fecparam,
1115 	.set_fecparam		= ionic_set_fecparam,
1116 	.get_ts_info		= ionic_get_ts_info,
1117 	.nway_reset		= ionic_nway_reset,
1118 };
1119 
ionic_ethtool_set_ops(struct net_device * netdev)1120 void ionic_ethtool_set_ops(struct net_device *netdev)
1121 {
1122 	netdev->ethtool_ops = &ionic_ethtool_ops;
1123 }
1124