1 /* Broadcom NetXtreme-C/E network driver.
2  *
3  * Copyright (c) 2014-2015 Broadcom Corporation
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation.
8  */
9 
10 #include <linux/ethtool.h>
11 #include <linux/interrupt.h>
12 #include <linux/pci.h>
13 #include <linux/etherdevice.h>
14 #include <linux/crc32.h>
15 #include <linux/firmware.h>
16 #include "bnxt_hsi.h"
17 #include "bnxt.h"
18 #include "bnxt_ethtool.h"
19 #include "bnxt_nvm_defs.h"	/* NVRAM content constant and structure defs */
20 #include "bnxt_fw_hdr.h"	/* Firmware hdr constant and structure defs */
21 #define FLASH_NVRAM_TIMEOUT	((HWRM_CMD_TIMEOUT) * 100)
22 
23 static u32 bnxt_get_msglevel(struct net_device *dev)
24 {
25 	struct bnxt *bp = netdev_priv(dev);
26 
27 	return bp->msg_enable;
28 }
29 
30 static void bnxt_set_msglevel(struct net_device *dev, u32 value)
31 {
32 	struct bnxt *bp = netdev_priv(dev);
33 
34 	bp->msg_enable = value;
35 }
36 
37 static int bnxt_get_coalesce(struct net_device *dev,
38 			     struct ethtool_coalesce *coal)
39 {
40 	struct bnxt *bp = netdev_priv(dev);
41 
42 	memset(coal, 0, sizeof(*coal));
43 
44 	coal->rx_coalesce_usecs =
45 		max_t(u16, BNXT_COAL_TIMER_TO_USEC(bp->coal_ticks), 1);
46 	coal->rx_max_coalesced_frames = bp->coal_bufs / 2;
47 	coal->rx_coalesce_usecs_irq =
48 		max_t(u16, BNXT_COAL_TIMER_TO_USEC(bp->coal_ticks_irq), 1);
49 	coal->rx_max_coalesced_frames_irq = bp->coal_bufs_irq / 2;
50 
51 	return 0;
52 }
53 
54 static int bnxt_set_coalesce(struct net_device *dev,
55 			     struct ethtool_coalesce *coal)
56 {
57 	struct bnxt *bp = netdev_priv(dev);
58 	int rc = 0;
59 
60 	bp->coal_ticks = BNXT_USEC_TO_COAL_TIMER(coal->rx_coalesce_usecs);
61 	bp->coal_bufs = coal->rx_max_coalesced_frames * 2;
62 	bp->coal_ticks_irq =
63 		BNXT_USEC_TO_COAL_TIMER(coal->rx_coalesce_usecs_irq);
64 	bp->coal_bufs_irq = coal->rx_max_coalesced_frames_irq * 2;
65 
66 	if (netif_running(dev))
67 		rc = bnxt_hwrm_set_coal(bp);
68 
69 	return rc;
70 }
71 
72 #define BNXT_NUM_STATS	21
73 
74 static int bnxt_get_sset_count(struct net_device *dev, int sset)
75 {
76 	struct bnxt *bp = netdev_priv(dev);
77 
78 	switch (sset) {
79 	case ETH_SS_STATS:
80 		return BNXT_NUM_STATS * bp->cp_nr_rings;
81 	default:
82 		return -EOPNOTSUPP;
83 	}
84 }
85 
86 static void bnxt_get_ethtool_stats(struct net_device *dev,
87 				   struct ethtool_stats *stats, u64 *buf)
88 {
89 	u32 i, j = 0;
90 	struct bnxt *bp = netdev_priv(dev);
91 	u32 buf_size = sizeof(struct ctx_hw_stats) * bp->cp_nr_rings;
92 	u32 stat_fields = sizeof(struct ctx_hw_stats) / 8;
93 
94 	memset(buf, 0, buf_size);
95 
96 	if (!bp->bnapi)
97 		return;
98 
99 	for (i = 0; i < bp->cp_nr_rings; i++) {
100 		struct bnxt_napi *bnapi = bp->bnapi[i];
101 		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
102 		__le64 *hw_stats = (__le64 *)cpr->hw_stats;
103 		int k;
104 
105 		for (k = 0; k < stat_fields; j++, k++)
106 			buf[j] = le64_to_cpu(hw_stats[k]);
107 		buf[j++] = cpr->rx_l4_csum_errors;
108 	}
109 }
110 
111 static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
112 {
113 	struct bnxt *bp = netdev_priv(dev);
114 	u32 i;
115 
116 	switch (stringset) {
117 	/* The number of strings must match BNXT_NUM_STATS defined above. */
118 	case ETH_SS_STATS:
119 		for (i = 0; i < bp->cp_nr_rings; i++) {
120 			sprintf(buf, "[%d]: rx_ucast_packets", i);
121 			buf += ETH_GSTRING_LEN;
122 			sprintf(buf, "[%d]: rx_mcast_packets", i);
123 			buf += ETH_GSTRING_LEN;
124 			sprintf(buf, "[%d]: rx_bcast_packets", i);
125 			buf += ETH_GSTRING_LEN;
126 			sprintf(buf, "[%d]: rx_discards", i);
127 			buf += ETH_GSTRING_LEN;
128 			sprintf(buf, "[%d]: rx_drops", i);
129 			buf += ETH_GSTRING_LEN;
130 			sprintf(buf, "[%d]: rx_ucast_bytes", i);
131 			buf += ETH_GSTRING_LEN;
132 			sprintf(buf, "[%d]: rx_mcast_bytes", i);
133 			buf += ETH_GSTRING_LEN;
134 			sprintf(buf, "[%d]: rx_bcast_bytes", i);
135 			buf += ETH_GSTRING_LEN;
136 			sprintf(buf, "[%d]: tx_ucast_packets", i);
137 			buf += ETH_GSTRING_LEN;
138 			sprintf(buf, "[%d]: tx_mcast_packets", i);
139 			buf += ETH_GSTRING_LEN;
140 			sprintf(buf, "[%d]: tx_bcast_packets", i);
141 			buf += ETH_GSTRING_LEN;
142 			sprintf(buf, "[%d]: tx_discards", i);
143 			buf += ETH_GSTRING_LEN;
144 			sprintf(buf, "[%d]: tx_drops", i);
145 			buf += ETH_GSTRING_LEN;
146 			sprintf(buf, "[%d]: tx_ucast_bytes", i);
147 			buf += ETH_GSTRING_LEN;
148 			sprintf(buf, "[%d]: tx_mcast_bytes", i);
149 			buf += ETH_GSTRING_LEN;
150 			sprintf(buf, "[%d]: tx_bcast_bytes", i);
151 			buf += ETH_GSTRING_LEN;
152 			sprintf(buf, "[%d]: tpa_packets", i);
153 			buf += ETH_GSTRING_LEN;
154 			sprintf(buf, "[%d]: tpa_bytes", i);
155 			buf += ETH_GSTRING_LEN;
156 			sprintf(buf, "[%d]: tpa_events", i);
157 			buf += ETH_GSTRING_LEN;
158 			sprintf(buf, "[%d]: tpa_aborts", i);
159 			buf += ETH_GSTRING_LEN;
160 			sprintf(buf, "[%d]: rx_l4_csum_errors", i);
161 			buf += ETH_GSTRING_LEN;
162 		}
163 		break;
164 	default:
165 		netdev_err(bp->dev, "bnxt_get_strings invalid request %x\n",
166 			   stringset);
167 		break;
168 	}
169 }
170 
171 static void bnxt_get_ringparam(struct net_device *dev,
172 			       struct ethtool_ringparam *ering)
173 {
174 	struct bnxt *bp = netdev_priv(dev);
175 
176 	ering->rx_max_pending = BNXT_MAX_RX_DESC_CNT;
177 	ering->rx_jumbo_max_pending = BNXT_MAX_RX_JUM_DESC_CNT;
178 	ering->tx_max_pending = BNXT_MAX_TX_DESC_CNT;
179 
180 	ering->rx_pending = bp->rx_ring_size;
181 	ering->rx_jumbo_pending = bp->rx_agg_ring_size;
182 	ering->tx_pending = bp->tx_ring_size;
183 }
184 
185 static int bnxt_set_ringparam(struct net_device *dev,
186 			      struct ethtool_ringparam *ering)
187 {
188 	struct bnxt *bp = netdev_priv(dev);
189 
190 	if ((ering->rx_pending > BNXT_MAX_RX_DESC_CNT) ||
191 	    (ering->tx_pending > BNXT_MAX_TX_DESC_CNT) ||
192 	    (ering->tx_pending <= MAX_SKB_FRAGS))
193 		return -EINVAL;
194 
195 	if (netif_running(dev))
196 		bnxt_close_nic(bp, false, false);
197 
198 	bp->rx_ring_size = ering->rx_pending;
199 	bp->tx_ring_size = ering->tx_pending;
200 	bnxt_set_ring_params(bp);
201 
202 	if (netif_running(dev))
203 		return bnxt_open_nic(bp, false, false);
204 
205 	return 0;
206 }
207 
208 static void bnxt_get_channels(struct net_device *dev,
209 			      struct ethtool_channels *channel)
210 {
211 	struct bnxt *bp = netdev_priv(dev);
212 	int max_rx_rings, max_tx_rings, tcs;
213 
214 	bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, true);
215 	channel->max_combined = max_rx_rings;
216 
217 	bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, false);
218 	tcs = netdev_get_num_tc(dev);
219 	if (tcs > 1)
220 		max_tx_rings /= tcs;
221 
222 	channel->max_rx = max_rx_rings;
223 	channel->max_tx = max_tx_rings;
224 	channel->max_other = 0;
225 	if (bp->flags & BNXT_FLAG_SHARED_RINGS) {
226 		channel->combined_count = bp->rx_nr_rings;
227 	} else {
228 		channel->rx_count = bp->rx_nr_rings;
229 		channel->tx_count = bp->tx_nr_rings_per_tc;
230 	}
231 }
232 
233 static int bnxt_set_channels(struct net_device *dev,
234 			     struct ethtool_channels *channel)
235 {
236 	struct bnxt *bp = netdev_priv(dev);
237 	int max_rx_rings, max_tx_rings, tcs;
238 	u32 rc = 0;
239 	bool sh = false;
240 
241 	if (channel->other_count)
242 		return -EINVAL;
243 
244 	if (!channel->combined_count &&
245 	    (!channel->rx_count || !channel->tx_count))
246 		return -EINVAL;
247 
248 	if (channel->combined_count &&
249 	    (channel->rx_count || channel->tx_count))
250 		return -EINVAL;
251 
252 	if (channel->combined_count)
253 		sh = true;
254 
255 	bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, sh);
256 
257 	tcs = netdev_get_num_tc(dev);
258 	if (tcs > 1)
259 		max_tx_rings /= tcs;
260 
261 	if (sh && (channel->combined_count > max_rx_rings ||
262 		   channel->combined_count > max_tx_rings))
263 		return -ENOMEM;
264 
265 	if (!sh && (channel->rx_count > max_rx_rings ||
266 		    channel->tx_count > max_tx_rings))
267 		return -ENOMEM;
268 
269 	if (netif_running(dev)) {
270 		if (BNXT_PF(bp)) {
271 			/* TODO CHIMP_FW: Send message to all VF's
272 			 * before PF unload
273 			 */
274 		}
275 		rc = bnxt_close_nic(bp, true, false);
276 		if (rc) {
277 			netdev_err(bp->dev, "Set channel failure rc :%x\n",
278 				   rc);
279 			return rc;
280 		}
281 	}
282 
283 	if (sh) {
284 		bp->flags |= BNXT_FLAG_SHARED_RINGS;
285 		bp->rx_nr_rings = channel->combined_count;
286 		bp->tx_nr_rings_per_tc = channel->combined_count;
287 	} else {
288 		bp->flags &= ~BNXT_FLAG_SHARED_RINGS;
289 		bp->rx_nr_rings = channel->rx_count;
290 		bp->tx_nr_rings_per_tc = channel->tx_count;
291 	}
292 
293 	bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
294 	if (tcs > 1)
295 		bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs;
296 
297 	bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
298 			       bp->tx_nr_rings + bp->rx_nr_rings;
299 
300 	bp->num_stat_ctxs = bp->cp_nr_rings;
301 
302 	/* After changing number of rx channels, update NTUPLE feature. */
303 	netdev_update_features(dev);
304 	if (netif_running(dev)) {
305 		rc = bnxt_open_nic(bp, true, false);
306 		if ((!rc) && BNXT_PF(bp)) {
307 			/* TODO CHIMP_FW: Send message to all VF's
308 			 * to renable
309 			 */
310 		}
311 	}
312 
313 	return rc;
314 }
315 
316 #ifdef CONFIG_RFS_ACCEL
317 static int bnxt_grxclsrlall(struct bnxt *bp, struct ethtool_rxnfc *cmd,
318 			    u32 *rule_locs)
319 {
320 	int i, j = 0;
321 
322 	cmd->data = bp->ntp_fltr_count;
323 	for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
324 		struct hlist_head *head;
325 		struct bnxt_ntuple_filter *fltr;
326 
327 		head = &bp->ntp_fltr_hash_tbl[i];
328 		rcu_read_lock();
329 		hlist_for_each_entry_rcu(fltr, head, hash) {
330 			if (j == cmd->rule_cnt)
331 				break;
332 			rule_locs[j++] = fltr->sw_id;
333 		}
334 		rcu_read_unlock();
335 		if (j == cmd->rule_cnt)
336 			break;
337 	}
338 	cmd->rule_cnt = j;
339 	return 0;
340 }
341 
342 static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
343 {
344 	struct ethtool_rx_flow_spec *fs =
345 		(struct ethtool_rx_flow_spec *)&cmd->fs;
346 	struct bnxt_ntuple_filter *fltr;
347 	struct flow_keys *fkeys;
348 	int i, rc = -EINVAL;
349 
350 	if (fs->location < 0 || fs->location >= BNXT_NTP_FLTR_MAX_FLTR)
351 		return rc;
352 
353 	for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
354 		struct hlist_head *head;
355 
356 		head = &bp->ntp_fltr_hash_tbl[i];
357 		rcu_read_lock();
358 		hlist_for_each_entry_rcu(fltr, head, hash) {
359 			if (fltr->sw_id == fs->location)
360 				goto fltr_found;
361 		}
362 		rcu_read_unlock();
363 	}
364 	return rc;
365 
366 fltr_found:
367 	fkeys = &fltr->fkeys;
368 	if (fkeys->basic.ip_proto == IPPROTO_TCP)
369 		fs->flow_type = TCP_V4_FLOW;
370 	else if (fkeys->basic.ip_proto == IPPROTO_UDP)
371 		fs->flow_type = UDP_V4_FLOW;
372 	else
373 		goto fltr_err;
374 
375 	fs->h_u.tcp_ip4_spec.ip4src = fkeys->addrs.v4addrs.src;
376 	fs->m_u.tcp_ip4_spec.ip4src = cpu_to_be32(~0);
377 
378 	fs->h_u.tcp_ip4_spec.ip4dst = fkeys->addrs.v4addrs.dst;
379 	fs->m_u.tcp_ip4_spec.ip4dst = cpu_to_be32(~0);
380 
381 	fs->h_u.tcp_ip4_spec.psrc = fkeys->ports.src;
382 	fs->m_u.tcp_ip4_spec.psrc = cpu_to_be16(~0);
383 
384 	fs->h_u.tcp_ip4_spec.pdst = fkeys->ports.dst;
385 	fs->m_u.tcp_ip4_spec.pdst = cpu_to_be16(~0);
386 
387 	fs->ring_cookie = fltr->rxq;
388 	rc = 0;
389 
390 fltr_err:
391 	rcu_read_unlock();
392 
393 	return rc;
394 }
395 
396 static int bnxt_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
397 			  u32 *rule_locs)
398 {
399 	struct bnxt *bp = netdev_priv(dev);
400 	int rc = 0;
401 
402 	switch (cmd->cmd) {
403 	case ETHTOOL_GRXRINGS:
404 		cmd->data = bp->rx_nr_rings;
405 		break;
406 
407 	case ETHTOOL_GRXCLSRLCNT:
408 		cmd->rule_cnt = bp->ntp_fltr_count;
409 		cmd->data = BNXT_NTP_FLTR_MAX_FLTR;
410 		break;
411 
412 	case ETHTOOL_GRXCLSRLALL:
413 		rc = bnxt_grxclsrlall(bp, cmd, (u32 *)rule_locs);
414 		break;
415 
416 	case ETHTOOL_GRXCLSRULE:
417 		rc = bnxt_grxclsrule(bp, cmd);
418 		break;
419 
420 	default:
421 		rc = -EOPNOTSUPP;
422 		break;
423 	}
424 
425 	return rc;
426 }
427 #endif
428 
429 static u32 bnxt_get_rxfh_indir_size(struct net_device *dev)
430 {
431 	return HW_HASH_INDEX_SIZE;
432 }
433 
434 static u32 bnxt_get_rxfh_key_size(struct net_device *dev)
435 {
436 	return HW_HASH_KEY_SIZE;
437 }
438 
439 static int bnxt_get_rxfh(struct net_device *dev, u32 *indir, u8 *key,
440 			 u8 *hfunc)
441 {
442 	struct bnxt *bp = netdev_priv(dev);
443 	struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
444 	int i = 0;
445 
446 	if (hfunc)
447 		*hfunc = ETH_RSS_HASH_TOP;
448 
449 	if (indir)
450 		for (i = 0; i < HW_HASH_INDEX_SIZE; i++)
451 			indir[i] = le16_to_cpu(vnic->rss_table[i]);
452 
453 	if (key)
454 		memcpy(key, vnic->rss_hash_key, HW_HASH_KEY_SIZE);
455 
456 	return 0;
457 }
458 
459 static void bnxt_get_drvinfo(struct net_device *dev,
460 			     struct ethtool_drvinfo *info)
461 {
462 	struct bnxt *bp = netdev_priv(dev);
463 
464 	strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
465 	strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
466 	strlcpy(info->fw_version, bp->fw_ver_str, sizeof(info->fw_version));
467 	strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
468 	info->n_stats = BNXT_NUM_STATS * bp->cp_nr_rings;
469 	info->testinfo_len = BNXT_NUM_TESTS(bp);
470 	/* TODO CHIMP_FW: eeprom dump details */
471 	info->eedump_len = 0;
472 	/* TODO CHIMP FW: reg dump details */
473 	info->regdump_len = 0;
474 }
475 
476 static u32 bnxt_fw_to_ethtool_support_spds(struct bnxt_link_info *link_info)
477 {
478 	u16 fw_speeds = link_info->support_speeds;
479 	u32 speed_mask = 0;
480 
481 	if (fw_speeds & BNXT_LINK_SPEED_MSK_100MB)
482 		speed_mask |= SUPPORTED_100baseT_Full;
483 	if (fw_speeds & BNXT_LINK_SPEED_MSK_1GB)
484 		speed_mask |= SUPPORTED_1000baseT_Full;
485 	if (fw_speeds & BNXT_LINK_SPEED_MSK_2_5GB)
486 		speed_mask |= SUPPORTED_2500baseX_Full;
487 	if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
488 		speed_mask |= SUPPORTED_10000baseT_Full;
489 	if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
490 		speed_mask |= SUPPORTED_40000baseCR4_Full;
491 
492 	return speed_mask;
493 }
494 
495 static u32 bnxt_fw_to_ethtool_advertised_spds(struct bnxt_link_info *link_info)
496 {
497 	u16 fw_speeds = link_info->auto_link_speeds;
498 	u32 speed_mask = 0;
499 
500 	/* TODO: support 25GB, 40GB, 50GB with different cable type */
501 	/* set the advertised speeds */
502 	if (fw_speeds & BNXT_LINK_SPEED_MSK_100MB)
503 		speed_mask |= ADVERTISED_100baseT_Full;
504 	if (fw_speeds & BNXT_LINK_SPEED_MSK_1GB)
505 		speed_mask |= ADVERTISED_1000baseT_Full;
506 	if (fw_speeds & BNXT_LINK_SPEED_MSK_2_5GB)
507 		speed_mask |= ADVERTISED_2500baseX_Full;
508 	if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
509 		speed_mask |= ADVERTISED_10000baseT_Full;
510 	if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
511 		speed_mask |= ADVERTISED_40000baseCR4_Full;
512 	return speed_mask;
513 }
514 
515 u32 bnxt_fw_to_ethtool_speed(u16 fw_link_speed)
516 {
517 	switch (fw_link_speed) {
518 	case BNXT_LINK_SPEED_100MB:
519 		return SPEED_100;
520 	case BNXT_LINK_SPEED_1GB:
521 		return SPEED_1000;
522 	case BNXT_LINK_SPEED_2_5GB:
523 		return SPEED_2500;
524 	case BNXT_LINK_SPEED_10GB:
525 		return SPEED_10000;
526 	case BNXT_LINK_SPEED_20GB:
527 		return SPEED_20000;
528 	case BNXT_LINK_SPEED_25GB:
529 		return SPEED_25000;
530 	case BNXT_LINK_SPEED_40GB:
531 		return SPEED_40000;
532 	case BNXT_LINK_SPEED_50GB:
533 		return SPEED_50000;
534 	default:
535 		return SPEED_UNKNOWN;
536 	}
537 }
538 
539 static int bnxt_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
540 {
541 	struct bnxt *bp = netdev_priv(dev);
542 	struct bnxt_link_info *link_info = &bp->link_info;
543 	u16 ethtool_speed;
544 
545 	cmd->supported = bnxt_fw_to_ethtool_support_spds(link_info);
546 	cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
547 
548 	if (link_info->auto_link_speeds)
549 		cmd->supported |= SUPPORTED_Autoneg;
550 
551 	if (link_info->autoneg) {
552 		cmd->advertising =
553 			bnxt_fw_to_ethtool_advertised_spds(link_info);
554 		cmd->advertising |= ADVERTISED_Autoneg;
555 		cmd->autoneg = AUTONEG_ENABLE;
556 	} else {
557 		cmd->autoneg = AUTONEG_DISABLE;
558 		cmd->advertising = 0;
559 	}
560 	if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) {
561 		if ((link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) ==
562 		    BNXT_LINK_PAUSE_BOTH) {
563 			cmd->advertising |= ADVERTISED_Pause;
564 		} else {
565 			cmd->advertising |= ADVERTISED_Asym_Pause;
566 			if (link_info->auto_pause_setting &
567 			    BNXT_LINK_PAUSE_RX)
568 				cmd->advertising |= ADVERTISED_Pause;
569 		}
570 	}
571 
572 	cmd->port = PORT_NONE;
573 	if (link_info->media_type == PORT_PHY_QCFG_RESP_MEDIA_TYPE_TP) {
574 		cmd->port = PORT_TP;
575 		cmd->supported |= SUPPORTED_TP;
576 		cmd->advertising |= ADVERTISED_TP;
577 	} else {
578 		cmd->supported |= SUPPORTED_FIBRE;
579 		cmd->advertising |= ADVERTISED_FIBRE;
580 
581 		if (link_info->media_type == PORT_PHY_QCFG_RESP_MEDIA_TYPE_DAC)
582 			cmd->port = PORT_DA;
583 		else if (link_info->media_type ==
584 			 PORT_PHY_QCFG_RESP_MEDIA_TYPE_FIBRE)
585 			cmd->port = PORT_FIBRE;
586 	}
587 
588 	if (link_info->phy_link_status == BNXT_LINK_LINK) {
589 		if (link_info->duplex & BNXT_LINK_DUPLEX_FULL)
590 			cmd->duplex = DUPLEX_FULL;
591 	} else {
592 		cmd->duplex = DUPLEX_UNKNOWN;
593 	}
594 	ethtool_speed = bnxt_fw_to_ethtool_speed(link_info->link_speed);
595 	ethtool_cmd_speed_set(cmd, ethtool_speed);
596 	if (link_info->transceiver ==
597 		PORT_PHY_QCFG_RESP_TRANSCEIVER_TYPE_XCVR_INTERNAL)
598 		cmd->transceiver = XCVR_INTERNAL;
599 	else
600 		cmd->transceiver = XCVR_EXTERNAL;
601 	cmd->phy_address = link_info->phy_addr;
602 
603 	return 0;
604 }
605 
606 static u32 bnxt_get_fw_speed(struct net_device *dev, u16 ethtool_speed)
607 {
608 	switch (ethtool_speed) {
609 	case SPEED_100:
610 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_100MB;
611 	case SPEED_1000:
612 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_1GB;
613 	case SPEED_2500:
614 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_2_5GB;
615 	case SPEED_10000:
616 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_10GB;
617 	case SPEED_20000:
618 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_20GB;
619 	case SPEED_25000:
620 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_25GB;
621 	case SPEED_40000:
622 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_40GB;
623 	case SPEED_50000:
624 		return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_50GB;
625 	default:
626 		netdev_err(dev, "unsupported speed!\n");
627 		break;
628 	}
629 	return 0;
630 }
631 
632 static u16 bnxt_get_fw_auto_link_speeds(u32 advertising)
633 {
634 	u16 fw_speed_mask = 0;
635 
636 	/* only support autoneg at speed 100, 1000, and 10000 */
637 	if (advertising & (ADVERTISED_100baseT_Full |
638 			   ADVERTISED_100baseT_Half)) {
639 		fw_speed_mask |= BNXT_LINK_SPEED_MSK_100MB;
640 	}
641 	if (advertising & (ADVERTISED_1000baseT_Full |
642 			   ADVERTISED_1000baseT_Half)) {
643 		fw_speed_mask |= BNXT_LINK_SPEED_MSK_1GB;
644 	}
645 	if (advertising & ADVERTISED_10000baseT_Full)
646 		fw_speed_mask |= BNXT_LINK_SPEED_MSK_10GB;
647 
648 	if (advertising & ADVERTISED_40000baseCR4_Full)
649 		fw_speed_mask |= BNXT_LINK_SPEED_MSK_40GB;
650 
651 	return fw_speed_mask;
652 }
653 
654 static int bnxt_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
655 {
656 	int rc = 0;
657 	struct bnxt *bp = netdev_priv(dev);
658 	struct bnxt_link_info *link_info = &bp->link_info;
659 	u32 speed, fw_advertising = 0;
660 	bool set_pause = false;
661 
662 	if (BNXT_VF(bp))
663 		return rc;
664 
665 	if (cmd->autoneg == AUTONEG_ENABLE) {
666 		if (link_info->media_type != PORT_PHY_QCFG_RESP_MEDIA_TYPE_TP) {
667 			netdev_err(dev, "Media type doesn't support autoneg\n");
668 			rc = -EINVAL;
669 			goto set_setting_exit;
670 		}
671 		if (cmd->advertising & ~(BNXT_ALL_COPPER_ETHTOOL_SPEED |
672 					 ADVERTISED_Autoneg |
673 					 ADVERTISED_TP |
674 					 ADVERTISED_Pause |
675 					 ADVERTISED_Asym_Pause)) {
676 			netdev_err(dev, "Unsupported advertising mask (adv: 0x%x)\n",
677 				   cmd->advertising);
678 			rc = -EINVAL;
679 			goto set_setting_exit;
680 		}
681 		fw_advertising = bnxt_get_fw_auto_link_speeds(cmd->advertising);
682 		if (fw_advertising & ~link_info->support_speeds) {
683 			netdev_err(dev, "Advertising parameters are not supported! (adv: 0x%x)\n",
684 				   cmd->advertising);
685 			rc = -EINVAL;
686 			goto set_setting_exit;
687 		}
688 		link_info->autoneg |= BNXT_AUTONEG_SPEED;
689 		if (!fw_advertising)
690 			link_info->advertising = link_info->support_speeds;
691 		else
692 			link_info->advertising = fw_advertising;
693 		/* any change to autoneg will cause link change, therefore the
694 		 * driver should put back the original pause setting in autoneg
695 		 */
696 		set_pause = true;
697 	} else {
698 		/* TODO: currently don't support half duplex */
699 		if (cmd->duplex == DUPLEX_HALF) {
700 			netdev_err(dev, "HALF DUPLEX is not supported!\n");
701 			rc = -EINVAL;
702 			goto set_setting_exit;
703 		}
704 		/* If received a request for an unknown duplex, assume full*/
705 		if (cmd->duplex == DUPLEX_UNKNOWN)
706 			cmd->duplex = DUPLEX_FULL;
707 		speed = ethtool_cmd_speed(cmd);
708 		link_info->req_link_speed = bnxt_get_fw_speed(dev, speed);
709 		link_info->req_duplex = BNXT_LINK_DUPLEX_FULL;
710 		link_info->autoneg = 0;
711 		link_info->advertising = 0;
712 	}
713 
714 	if (netif_running(dev))
715 		rc = bnxt_hwrm_set_link_setting(bp, set_pause);
716 
717 set_setting_exit:
718 	return rc;
719 }
720 
721 static void bnxt_get_pauseparam(struct net_device *dev,
722 				struct ethtool_pauseparam *epause)
723 {
724 	struct bnxt *bp = netdev_priv(dev);
725 	struct bnxt_link_info *link_info = &bp->link_info;
726 
727 	if (BNXT_VF(bp))
728 		return;
729 	epause->autoneg = !!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL);
730 	epause->rx_pause = ((link_info->pause & BNXT_LINK_PAUSE_RX) != 0);
731 	epause->tx_pause = ((link_info->pause & BNXT_LINK_PAUSE_TX) != 0);
732 }
733 
734 static int bnxt_set_pauseparam(struct net_device *dev,
735 			       struct ethtool_pauseparam *epause)
736 {
737 	int rc = 0;
738 	struct bnxt *bp = netdev_priv(dev);
739 	struct bnxt_link_info *link_info = &bp->link_info;
740 
741 	if (BNXT_VF(bp))
742 		return rc;
743 
744 	if (epause->autoneg) {
745 		if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
746 			return -EINVAL;
747 
748 		link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
749 		link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_BOTH;
750 	} else {
751 		/* when transition from auto pause to force pause,
752 		 * force a link change
753 		 */
754 		if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
755 			link_info->force_link_chng = true;
756 		link_info->autoneg &= ~BNXT_AUTONEG_FLOW_CTRL;
757 		link_info->req_flow_ctrl &= ~BNXT_LINK_PAUSE_BOTH;
758 	}
759 	if (epause->rx_pause)
760 		link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_RX;
761 	else
762 		link_info->req_flow_ctrl &= ~BNXT_LINK_PAUSE_RX;
763 
764 	if (epause->tx_pause)
765 		link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_TX;
766 	else
767 		link_info->req_flow_ctrl &= ~BNXT_LINK_PAUSE_TX;
768 
769 	if (netif_running(dev))
770 		rc = bnxt_hwrm_set_pause(bp);
771 	return rc;
772 }
773 
774 static u32 bnxt_get_link(struct net_device *dev)
775 {
776 	struct bnxt *bp = netdev_priv(dev);
777 
778 	/* TODO: handle MF, VF, driver close case */
779 	return bp->link_info.link_up;
780 }
781 
782 static int bnxt_flash_nvram(struct net_device *dev,
783 			    u16 dir_type,
784 			    u16 dir_ordinal,
785 			    u16 dir_ext,
786 			    u16 dir_attr,
787 			    const u8 *data,
788 			    size_t data_len)
789 {
790 	struct bnxt *bp = netdev_priv(dev);
791 	int rc;
792 	struct hwrm_nvm_write_input req = {0};
793 	dma_addr_t dma_handle;
794 	u8 *kmem;
795 
796 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_WRITE, -1, -1);
797 
798 	req.dir_type = cpu_to_le16(dir_type);
799 	req.dir_ordinal = cpu_to_le16(dir_ordinal);
800 	req.dir_ext = cpu_to_le16(dir_ext);
801 	req.dir_attr = cpu_to_le16(dir_attr);
802 	req.dir_data_length = cpu_to_le32(data_len);
803 
804 	kmem = dma_alloc_coherent(&bp->pdev->dev, data_len, &dma_handle,
805 				  GFP_KERNEL);
806 	if (!kmem) {
807 		netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
808 			   (unsigned)data_len);
809 		return -ENOMEM;
810 	}
811 	memcpy(kmem, data, data_len);
812 	req.host_src_addr = cpu_to_le64(dma_handle);
813 
814 	rc = hwrm_send_message(bp, &req, sizeof(req), FLASH_NVRAM_TIMEOUT);
815 	dma_free_coherent(&bp->pdev->dev, data_len, kmem, dma_handle);
816 
817 	return rc;
818 }
819 
820 static int bnxt_firmware_reset(struct net_device *dev,
821 			       u16 dir_type)
822 {
823 	struct bnxt *bp = netdev_priv(dev);
824 	struct hwrm_fw_reset_input req = {0};
825 
826 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
827 
828 	/* TODO: Support ASAP ChiMP self-reset (e.g. upon PF driver unload) */
829 	/* TODO: Address self-reset of APE/KONG/BONO/TANG or ungraceful reset */
830 	/*       (e.g. when firmware isn't already running) */
831 	switch (dir_type) {
832 	case BNX_DIR_TYPE_CHIMP_PATCH:
833 	case BNX_DIR_TYPE_BOOTCODE:
834 	case BNX_DIR_TYPE_BOOTCODE_2:
835 		req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_BOOT;
836 		/* Self-reset ChiMP upon next PCIe reset: */
837 		req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTPCIERST;
838 		break;
839 	case BNX_DIR_TYPE_APE_FW:
840 	case BNX_DIR_TYPE_APE_PATCH:
841 		req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_MGMT;
842 		break;
843 	case BNX_DIR_TYPE_KONG_FW:
844 	case BNX_DIR_TYPE_KONG_PATCH:
845 		req.embedded_proc_type =
846 			FW_RESET_REQ_EMBEDDED_PROC_TYPE_NETCTRL;
847 		break;
848 	case BNX_DIR_TYPE_BONO_FW:
849 	case BNX_DIR_TYPE_BONO_PATCH:
850 		req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_ROCE;
851 		break;
852 	default:
853 		return -EINVAL;
854 	}
855 
856 	return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
857 }
858 
859 static int bnxt_flash_firmware(struct net_device *dev,
860 			       u16 dir_type,
861 			       const u8 *fw_data,
862 			       size_t fw_size)
863 {
864 	int	rc = 0;
865 	u16	code_type;
866 	u32	stored_crc;
867 	u32	calculated_crc;
868 	struct bnxt_fw_header *header = (struct bnxt_fw_header *)fw_data;
869 
870 	switch (dir_type) {
871 	case BNX_DIR_TYPE_BOOTCODE:
872 	case BNX_DIR_TYPE_BOOTCODE_2:
873 		code_type = CODE_BOOT;
874 		break;
875 	case BNX_DIR_TYPE_APE_FW:
876 		code_type = CODE_MCTP_PASSTHRU;
877 		break;
878 	default:
879 		netdev_err(dev, "Unsupported directory entry type: %u\n",
880 			   dir_type);
881 		return -EINVAL;
882 	}
883 	if (fw_size < sizeof(struct bnxt_fw_header)) {
884 		netdev_err(dev, "Invalid firmware file size: %u\n",
885 			   (unsigned int)fw_size);
886 		return -EINVAL;
887 	}
888 	if (header->signature != cpu_to_le32(BNXT_FIRMWARE_BIN_SIGNATURE)) {
889 		netdev_err(dev, "Invalid firmware signature: %08X\n",
890 			   le32_to_cpu(header->signature));
891 		return -EINVAL;
892 	}
893 	if (header->code_type != code_type) {
894 		netdev_err(dev, "Expected firmware type: %d, read: %d\n",
895 			   code_type, header->code_type);
896 		return -EINVAL;
897 	}
898 	if (header->device != DEVICE_CUMULUS_FAMILY) {
899 		netdev_err(dev, "Expected firmware device family %d, read: %d\n",
900 			   DEVICE_CUMULUS_FAMILY, header->device);
901 		return -EINVAL;
902 	}
903 	/* Confirm the CRC32 checksum of the file: */
904 	stored_crc = le32_to_cpu(*(__le32 *)(fw_data + fw_size -
905 					     sizeof(stored_crc)));
906 	calculated_crc = ~crc32(~0, fw_data, fw_size - sizeof(stored_crc));
907 	if (calculated_crc != stored_crc) {
908 		netdev_err(dev, "Firmware file CRC32 checksum (%08lX) does not match calculated checksum (%08lX)\n",
909 			   (unsigned long)stored_crc,
910 			   (unsigned long)calculated_crc);
911 		return -EINVAL;
912 	}
913 	/* TODO: Validate digital signature (RSA-encrypted SHA-256 hash) here */
914 	rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
915 			      0, 0, fw_data, fw_size);
916 	if (rc == 0)	/* Firmware update successful */
917 		rc = bnxt_firmware_reset(dev, dir_type);
918 
919 	return rc;
920 }
921 
922 static bool bnxt_dir_type_is_ape_bin_format(u16 dir_type)
923 {
924 	switch (dir_type) {
925 	case BNX_DIR_TYPE_CHIMP_PATCH:
926 	case BNX_DIR_TYPE_BOOTCODE:
927 	case BNX_DIR_TYPE_BOOTCODE_2:
928 	case BNX_DIR_TYPE_APE_FW:
929 	case BNX_DIR_TYPE_APE_PATCH:
930 	case BNX_DIR_TYPE_KONG_FW:
931 	case BNX_DIR_TYPE_KONG_PATCH:
932 		return true;
933 	}
934 
935 	return false;
936 }
937 
938 static bool bnxt_dir_type_is_unprotected_exec_format(u16 dir_type)
939 {
940 	switch (dir_type) {
941 	case BNX_DIR_TYPE_AVS:
942 	case BNX_DIR_TYPE_EXP_ROM_MBA:
943 	case BNX_DIR_TYPE_PCIE:
944 	case BNX_DIR_TYPE_TSCF_UCODE:
945 	case BNX_DIR_TYPE_EXT_PHY:
946 	case BNX_DIR_TYPE_CCM:
947 	case BNX_DIR_TYPE_ISCSI_BOOT:
948 	case BNX_DIR_TYPE_ISCSI_BOOT_IPV6:
949 	case BNX_DIR_TYPE_ISCSI_BOOT_IPV4N6:
950 		return true;
951 	}
952 
953 	return false;
954 }
955 
956 static bool bnxt_dir_type_is_executable(u16 dir_type)
957 {
958 	return bnxt_dir_type_is_ape_bin_format(dir_type) ||
959 		bnxt_dir_type_is_unprotected_exec_format(dir_type);
960 }
961 
962 static int bnxt_flash_firmware_from_file(struct net_device *dev,
963 					 u16 dir_type,
964 					 const char *filename)
965 {
966 	const struct firmware  *fw;
967 	int			rc;
968 
969 	if (bnxt_dir_type_is_executable(dir_type) == false)
970 		return -EINVAL;
971 
972 	rc = request_firmware(&fw, filename, &dev->dev);
973 	if (rc != 0) {
974 		netdev_err(dev, "Error %d requesting firmware file: %s\n",
975 			   rc, filename);
976 		return rc;
977 	}
978 	if (bnxt_dir_type_is_ape_bin_format(dir_type) == true)
979 		rc = bnxt_flash_firmware(dev, dir_type, fw->data, fw->size);
980 	else
981 		rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
982 				      0, 0, fw->data, fw->size);
983 	release_firmware(fw);
984 	return rc;
985 }
986 
987 static int bnxt_flash_package_from_file(struct net_device *dev,
988 					char *filename)
989 {
990 	netdev_err(dev, "packages are not yet supported\n");
991 	return -EINVAL;
992 }
993 
994 static int bnxt_flash_device(struct net_device *dev,
995 			     struct ethtool_flash *flash)
996 {
997 	if (!BNXT_PF((struct bnxt *)netdev_priv(dev))) {
998 		netdev_err(dev, "flashdev not supported from a virtual function\n");
999 		return -EINVAL;
1000 	}
1001 
1002 	if (flash->region == ETHTOOL_FLASH_ALL_REGIONS)
1003 		return bnxt_flash_package_from_file(dev, flash->data);
1004 
1005 	return bnxt_flash_firmware_from_file(dev, flash->region, flash->data);
1006 }
1007 
1008 static int nvm_get_dir_info(struct net_device *dev, u32 *entries, u32 *length)
1009 {
1010 	struct bnxt *bp = netdev_priv(dev);
1011 	int rc;
1012 	struct hwrm_nvm_get_dir_info_input req = {0};
1013 	struct hwrm_nvm_get_dir_info_output *output = bp->hwrm_cmd_resp_addr;
1014 
1015 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_INFO, -1, -1);
1016 
1017 	mutex_lock(&bp->hwrm_cmd_lock);
1018 	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1019 	if (!rc) {
1020 		*entries = le32_to_cpu(output->entries);
1021 		*length = le32_to_cpu(output->entry_length);
1022 	}
1023 	mutex_unlock(&bp->hwrm_cmd_lock);
1024 	return rc;
1025 }
1026 
1027 static int bnxt_get_eeprom_len(struct net_device *dev)
1028 {
1029 	/* The -1 return value allows the entire 32-bit range of offsets to be
1030 	 * passed via the ethtool command-line utility.
1031 	 */
1032 	return -1;
1033 }
1034 
1035 static int bnxt_get_nvram_directory(struct net_device *dev, u32 len, u8 *data)
1036 {
1037 	struct bnxt *bp = netdev_priv(dev);
1038 	int rc;
1039 	u32 dir_entries;
1040 	u32 entry_length;
1041 	u8 *buf;
1042 	size_t buflen;
1043 	dma_addr_t dma_handle;
1044 	struct hwrm_nvm_get_dir_entries_input req = {0};
1045 
1046 	rc = nvm_get_dir_info(dev, &dir_entries, &entry_length);
1047 	if (rc != 0)
1048 		return rc;
1049 
1050 	/* Insert 2 bytes of directory info (count and size of entries) */
1051 	if (len < 2)
1052 		return -EINVAL;
1053 
1054 	*data++ = dir_entries;
1055 	*data++ = entry_length;
1056 	len -= 2;
1057 	memset(data, 0xff, len);
1058 
1059 	buflen = dir_entries * entry_length;
1060 	buf = dma_alloc_coherent(&bp->pdev->dev, buflen, &dma_handle,
1061 				 GFP_KERNEL);
1062 	if (!buf) {
1063 		netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
1064 			   (unsigned)buflen);
1065 		return -ENOMEM;
1066 	}
1067 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_ENTRIES, -1, -1);
1068 	req.host_dest_addr = cpu_to_le64(dma_handle);
1069 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1070 	if (rc == 0)
1071 		memcpy(data, buf, len > buflen ? buflen : len);
1072 	dma_free_coherent(&bp->pdev->dev, buflen, buf, dma_handle);
1073 	return rc;
1074 }
1075 
1076 static int bnxt_get_nvram_item(struct net_device *dev, u32 index, u32 offset,
1077 			       u32 length, u8 *data)
1078 {
1079 	struct bnxt *bp = netdev_priv(dev);
1080 	int rc;
1081 	u8 *buf;
1082 	dma_addr_t dma_handle;
1083 	struct hwrm_nvm_read_input req = {0};
1084 
1085 	buf = dma_alloc_coherent(&bp->pdev->dev, length, &dma_handle,
1086 				 GFP_KERNEL);
1087 	if (!buf) {
1088 		netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
1089 			   (unsigned)length);
1090 		return -ENOMEM;
1091 	}
1092 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_READ, -1, -1);
1093 	req.host_dest_addr = cpu_to_le64(dma_handle);
1094 	req.dir_idx = cpu_to_le16(index);
1095 	req.offset = cpu_to_le32(offset);
1096 	req.len = cpu_to_le32(length);
1097 
1098 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1099 	if (rc == 0)
1100 		memcpy(data, buf, length);
1101 	dma_free_coherent(&bp->pdev->dev, length, buf, dma_handle);
1102 	return rc;
1103 }
1104 
1105 static int bnxt_get_eeprom(struct net_device *dev,
1106 			   struct ethtool_eeprom *eeprom,
1107 			   u8 *data)
1108 {
1109 	u32 index;
1110 	u32 offset;
1111 
1112 	if (eeprom->offset == 0) /* special offset value to get directory */
1113 		return bnxt_get_nvram_directory(dev, eeprom->len, data);
1114 
1115 	index = eeprom->offset >> 24;
1116 	offset = eeprom->offset & 0xffffff;
1117 
1118 	if (index == 0) {
1119 		netdev_err(dev, "unsupported index value: %d\n", index);
1120 		return -EINVAL;
1121 	}
1122 
1123 	return bnxt_get_nvram_item(dev, index - 1, offset, eeprom->len, data);
1124 }
1125 
1126 static int bnxt_erase_nvram_directory(struct net_device *dev, u8 index)
1127 {
1128 	struct bnxt *bp = netdev_priv(dev);
1129 	struct hwrm_nvm_erase_dir_entry_input req = {0};
1130 
1131 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_ERASE_DIR_ENTRY, -1, -1);
1132 	req.dir_idx = cpu_to_le16(index);
1133 	return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1134 }
1135 
1136 static int bnxt_set_eeprom(struct net_device *dev,
1137 			   struct ethtool_eeprom *eeprom,
1138 			   u8 *data)
1139 {
1140 	struct bnxt *bp = netdev_priv(dev);
1141 	u8 index, dir_op;
1142 	u16 type, ext, ordinal, attr;
1143 
1144 	if (!BNXT_PF(bp)) {
1145 		netdev_err(dev, "NVM write not supported from a virtual function\n");
1146 		return -EINVAL;
1147 	}
1148 
1149 	type = eeprom->magic >> 16;
1150 
1151 	if (type == 0xffff) { /* special value for directory operations */
1152 		index = eeprom->magic & 0xff;
1153 		dir_op = eeprom->magic >> 8;
1154 		if (index == 0)
1155 			return -EINVAL;
1156 		switch (dir_op) {
1157 		case 0x0e: /* erase */
1158 			if (eeprom->offset != ~eeprom->magic)
1159 				return -EINVAL;
1160 			return bnxt_erase_nvram_directory(dev, index - 1);
1161 		default:
1162 			return -EINVAL;
1163 		}
1164 	}
1165 
1166 	/* Create or re-write an NVM item: */
1167 	if (bnxt_dir_type_is_executable(type) == true)
1168 		return -EINVAL;
1169 	ext = eeprom->magic & 0xffff;
1170 	ordinal = eeprom->offset >> 16;
1171 	attr = eeprom->offset & 0xffff;
1172 
1173 	return bnxt_flash_nvram(dev, type, ordinal, ext, attr, data,
1174 				eeprom->len);
1175 }
1176 
1177 const struct ethtool_ops bnxt_ethtool_ops = {
1178 	.get_settings		= bnxt_get_settings,
1179 	.set_settings		= bnxt_set_settings,
1180 	.get_pauseparam		= bnxt_get_pauseparam,
1181 	.set_pauseparam		= bnxt_set_pauseparam,
1182 	.get_drvinfo		= bnxt_get_drvinfo,
1183 	.get_coalesce		= bnxt_get_coalesce,
1184 	.set_coalesce		= bnxt_set_coalesce,
1185 	.get_msglevel		= bnxt_get_msglevel,
1186 	.set_msglevel		= bnxt_set_msglevel,
1187 	.get_sset_count		= bnxt_get_sset_count,
1188 	.get_strings		= bnxt_get_strings,
1189 	.get_ethtool_stats	= bnxt_get_ethtool_stats,
1190 	.set_ringparam		= bnxt_set_ringparam,
1191 	.get_ringparam		= bnxt_get_ringparam,
1192 	.get_channels		= bnxt_get_channels,
1193 	.set_channels		= bnxt_set_channels,
1194 #ifdef CONFIG_RFS_ACCEL
1195 	.get_rxnfc		= bnxt_get_rxnfc,
1196 #endif
1197 	.get_rxfh_indir_size    = bnxt_get_rxfh_indir_size,
1198 	.get_rxfh_key_size      = bnxt_get_rxfh_key_size,
1199 	.get_rxfh               = bnxt_get_rxfh,
1200 	.flash_device		= bnxt_flash_device,
1201 	.get_eeprom_len         = bnxt_get_eeprom_len,
1202 	.get_eeprom             = bnxt_get_eeprom,
1203 	.set_eeprom		= bnxt_set_eeprom,
1204 	.get_link		= bnxt_get_link,
1205 };
1206