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bnxt_en: Improve flow control autoneg with Firmware 1.2.1 interface.
[mirror_ubuntu-zesty-kernel.git] / drivers / net / ethernet / broadcom / bnxt / bnxt_ethtool.c
1 /* Broadcom NetXtreme-C/E network driver.
2 *
3 * Copyright (c) 2014-2016 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/ctype.h>
11 #include <linux/stringify.h>
12 #include <linux/ethtool.h>
13 #include <linux/interrupt.h>
14 #include <linux/pci.h>
15 #include <linux/etherdevice.h>
16 #include <linux/crc32.h>
17 #include <linux/firmware.h>
18 #include "bnxt_hsi.h"
19 #include "bnxt.h"
20 #include "bnxt_ethtool.h"
21 #include "bnxt_nvm_defs.h" /* NVRAM content constant and structure defs */
22 #include "bnxt_fw_hdr.h" /* Firmware hdr constant and structure defs */
23 #define FLASH_NVRAM_TIMEOUT ((HWRM_CMD_TIMEOUT) * 100)
24
25 static char *bnxt_get_pkgver(struct net_device *dev, char *buf, size_t buflen);
26
27 static u32 bnxt_get_msglevel(struct net_device *dev)
28 {
29 struct bnxt *bp = netdev_priv(dev);
30
31 return bp->msg_enable;
32 }
33
34 static void bnxt_set_msglevel(struct net_device *dev, u32 value)
35 {
36 struct bnxt *bp = netdev_priv(dev);
37
38 bp->msg_enable = value;
39 }
40
41 static int bnxt_get_coalesce(struct net_device *dev,
42 struct ethtool_coalesce *coal)
43 {
44 struct bnxt *bp = netdev_priv(dev);
45
46 memset(coal, 0, sizeof(*coal));
47
48 coal->rx_coalesce_usecs = bp->rx_coal_ticks;
49 /* 2 completion records per rx packet */
50 coal->rx_max_coalesced_frames = bp->rx_coal_bufs / 2;
51 coal->rx_coalesce_usecs_irq = bp->rx_coal_ticks_irq;
52 coal->rx_max_coalesced_frames_irq = bp->rx_coal_bufs_irq / 2;
53
54 coal->tx_coalesce_usecs = bp->tx_coal_ticks;
55 coal->tx_max_coalesced_frames = bp->tx_coal_bufs;
56 coal->tx_coalesce_usecs_irq = bp->tx_coal_ticks_irq;
57 coal->tx_max_coalesced_frames_irq = bp->tx_coal_bufs_irq;
58
59 return 0;
60 }
61
62 static int bnxt_set_coalesce(struct net_device *dev,
63 struct ethtool_coalesce *coal)
64 {
65 struct bnxt *bp = netdev_priv(dev);
66 int rc = 0;
67
68 bp->rx_coal_ticks = coal->rx_coalesce_usecs;
69 /* 2 completion records per rx packet */
70 bp->rx_coal_bufs = coal->rx_max_coalesced_frames * 2;
71 bp->rx_coal_ticks_irq = coal->rx_coalesce_usecs_irq;
72 bp->rx_coal_bufs_irq = coal->rx_max_coalesced_frames_irq * 2;
73
74 bp->tx_coal_ticks = coal->tx_coalesce_usecs;
75 bp->tx_coal_bufs = coal->tx_max_coalesced_frames;
76 bp->tx_coal_ticks_irq = coal->tx_coalesce_usecs_irq;
77 bp->tx_coal_bufs_irq = coal->tx_max_coalesced_frames_irq;
78
79 if (netif_running(dev))
80 rc = bnxt_hwrm_set_coal(bp);
81
82 return rc;
83 }
84
85 #define BNXT_NUM_STATS 21
86
87 #define BNXT_RX_STATS_OFFSET(counter) \
88 (offsetof(struct rx_port_stats, counter) / 8)
89
90 #define BNXT_RX_STATS_ENTRY(counter) \
91 { BNXT_RX_STATS_OFFSET(counter), __stringify(counter) }
92
93 #define BNXT_TX_STATS_OFFSET(counter) \
94 ((offsetof(struct tx_port_stats, counter) + \
95 sizeof(struct rx_port_stats) + 512) / 8)
96
97 #define BNXT_TX_STATS_ENTRY(counter) \
98 { BNXT_TX_STATS_OFFSET(counter), __stringify(counter) }
99
100 static const struct {
101 long offset;
102 char string[ETH_GSTRING_LEN];
103 } bnxt_port_stats_arr[] = {
104 BNXT_RX_STATS_ENTRY(rx_64b_frames),
105 BNXT_RX_STATS_ENTRY(rx_65b_127b_frames),
106 BNXT_RX_STATS_ENTRY(rx_128b_255b_frames),
107 BNXT_RX_STATS_ENTRY(rx_256b_511b_frames),
108 BNXT_RX_STATS_ENTRY(rx_512b_1023b_frames),
109 BNXT_RX_STATS_ENTRY(rx_1024b_1518_frames),
110 BNXT_RX_STATS_ENTRY(rx_good_vlan_frames),
111 BNXT_RX_STATS_ENTRY(rx_1519b_2047b_frames),
112 BNXT_RX_STATS_ENTRY(rx_2048b_4095b_frames),
113 BNXT_RX_STATS_ENTRY(rx_4096b_9216b_frames),
114 BNXT_RX_STATS_ENTRY(rx_9217b_16383b_frames),
115 BNXT_RX_STATS_ENTRY(rx_total_frames),
116 BNXT_RX_STATS_ENTRY(rx_ucast_frames),
117 BNXT_RX_STATS_ENTRY(rx_mcast_frames),
118 BNXT_RX_STATS_ENTRY(rx_bcast_frames),
119 BNXT_RX_STATS_ENTRY(rx_fcs_err_frames),
120 BNXT_RX_STATS_ENTRY(rx_ctrl_frames),
121 BNXT_RX_STATS_ENTRY(rx_pause_frames),
122 BNXT_RX_STATS_ENTRY(rx_pfc_frames),
123 BNXT_RX_STATS_ENTRY(rx_align_err_frames),
124 BNXT_RX_STATS_ENTRY(rx_ovrsz_frames),
125 BNXT_RX_STATS_ENTRY(rx_jbr_frames),
126 BNXT_RX_STATS_ENTRY(rx_mtu_err_frames),
127 BNXT_RX_STATS_ENTRY(rx_tagged_frames),
128 BNXT_RX_STATS_ENTRY(rx_double_tagged_frames),
129 BNXT_RX_STATS_ENTRY(rx_good_frames),
130 BNXT_RX_STATS_ENTRY(rx_undrsz_frames),
131 BNXT_RX_STATS_ENTRY(rx_eee_lpi_events),
132 BNXT_RX_STATS_ENTRY(rx_eee_lpi_duration),
133 BNXT_RX_STATS_ENTRY(rx_bytes),
134 BNXT_RX_STATS_ENTRY(rx_runt_bytes),
135 BNXT_RX_STATS_ENTRY(rx_runt_frames),
136
137 BNXT_TX_STATS_ENTRY(tx_64b_frames),
138 BNXT_TX_STATS_ENTRY(tx_65b_127b_frames),
139 BNXT_TX_STATS_ENTRY(tx_128b_255b_frames),
140 BNXT_TX_STATS_ENTRY(tx_256b_511b_frames),
141 BNXT_TX_STATS_ENTRY(tx_512b_1023b_frames),
142 BNXT_TX_STATS_ENTRY(tx_1024b_1518_frames),
143 BNXT_TX_STATS_ENTRY(tx_good_vlan_frames),
144 BNXT_TX_STATS_ENTRY(tx_1519b_2047_frames),
145 BNXT_TX_STATS_ENTRY(tx_2048b_4095b_frames),
146 BNXT_TX_STATS_ENTRY(tx_4096b_9216b_frames),
147 BNXT_TX_STATS_ENTRY(tx_9217b_16383b_frames),
148 BNXT_TX_STATS_ENTRY(tx_good_frames),
149 BNXT_TX_STATS_ENTRY(tx_total_frames),
150 BNXT_TX_STATS_ENTRY(tx_ucast_frames),
151 BNXT_TX_STATS_ENTRY(tx_mcast_frames),
152 BNXT_TX_STATS_ENTRY(tx_bcast_frames),
153 BNXT_TX_STATS_ENTRY(tx_pause_frames),
154 BNXT_TX_STATS_ENTRY(tx_pfc_frames),
155 BNXT_TX_STATS_ENTRY(tx_jabber_frames),
156 BNXT_TX_STATS_ENTRY(tx_fcs_err_frames),
157 BNXT_TX_STATS_ENTRY(tx_err),
158 BNXT_TX_STATS_ENTRY(tx_fifo_underruns),
159 BNXT_TX_STATS_ENTRY(tx_eee_lpi_events),
160 BNXT_TX_STATS_ENTRY(tx_eee_lpi_duration),
161 BNXT_TX_STATS_ENTRY(tx_total_collisions),
162 BNXT_TX_STATS_ENTRY(tx_bytes),
163 };
164
165 #define BNXT_NUM_PORT_STATS ARRAY_SIZE(bnxt_port_stats_arr)
166
167 static int bnxt_get_sset_count(struct net_device *dev, int sset)
168 {
169 struct bnxt *bp = netdev_priv(dev);
170
171 switch (sset) {
172 case ETH_SS_STATS: {
173 int num_stats = BNXT_NUM_STATS * bp->cp_nr_rings;
174
175 if (bp->flags & BNXT_FLAG_PORT_STATS)
176 num_stats += BNXT_NUM_PORT_STATS;
177
178 return num_stats;
179 }
180 default:
181 return -EOPNOTSUPP;
182 }
183 }
184
185 static void bnxt_get_ethtool_stats(struct net_device *dev,
186 struct ethtool_stats *stats, u64 *buf)
187 {
188 u32 i, j = 0;
189 struct bnxt *bp = netdev_priv(dev);
190 u32 buf_size = sizeof(struct ctx_hw_stats) * bp->cp_nr_rings;
191 u32 stat_fields = sizeof(struct ctx_hw_stats) / 8;
192
193 memset(buf, 0, buf_size);
194
195 if (!bp->bnapi)
196 return;
197
198 for (i = 0; i < bp->cp_nr_rings; i++) {
199 struct bnxt_napi *bnapi = bp->bnapi[i];
200 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
201 __le64 *hw_stats = (__le64 *)cpr->hw_stats;
202 int k;
203
204 for (k = 0; k < stat_fields; j++, k++)
205 buf[j] = le64_to_cpu(hw_stats[k]);
206 buf[j++] = cpr->rx_l4_csum_errors;
207 }
208 if (bp->flags & BNXT_FLAG_PORT_STATS) {
209 __le64 *port_stats = (__le64 *)bp->hw_rx_port_stats;
210
211 for (i = 0; i < BNXT_NUM_PORT_STATS; i++, j++) {
212 buf[j] = le64_to_cpu(*(port_stats +
213 bnxt_port_stats_arr[i].offset));
214 }
215 }
216 }
217
218 static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
219 {
220 struct bnxt *bp = netdev_priv(dev);
221 u32 i;
222
223 switch (stringset) {
224 /* The number of strings must match BNXT_NUM_STATS defined above. */
225 case ETH_SS_STATS:
226 for (i = 0; i < bp->cp_nr_rings; i++) {
227 sprintf(buf, "[%d]: rx_ucast_packets", i);
228 buf += ETH_GSTRING_LEN;
229 sprintf(buf, "[%d]: rx_mcast_packets", i);
230 buf += ETH_GSTRING_LEN;
231 sprintf(buf, "[%d]: rx_bcast_packets", i);
232 buf += ETH_GSTRING_LEN;
233 sprintf(buf, "[%d]: rx_discards", i);
234 buf += ETH_GSTRING_LEN;
235 sprintf(buf, "[%d]: rx_drops", i);
236 buf += ETH_GSTRING_LEN;
237 sprintf(buf, "[%d]: rx_ucast_bytes", i);
238 buf += ETH_GSTRING_LEN;
239 sprintf(buf, "[%d]: rx_mcast_bytes", i);
240 buf += ETH_GSTRING_LEN;
241 sprintf(buf, "[%d]: rx_bcast_bytes", i);
242 buf += ETH_GSTRING_LEN;
243 sprintf(buf, "[%d]: tx_ucast_packets", i);
244 buf += ETH_GSTRING_LEN;
245 sprintf(buf, "[%d]: tx_mcast_packets", i);
246 buf += ETH_GSTRING_LEN;
247 sprintf(buf, "[%d]: tx_bcast_packets", i);
248 buf += ETH_GSTRING_LEN;
249 sprintf(buf, "[%d]: tx_discards", i);
250 buf += ETH_GSTRING_LEN;
251 sprintf(buf, "[%d]: tx_drops", i);
252 buf += ETH_GSTRING_LEN;
253 sprintf(buf, "[%d]: tx_ucast_bytes", i);
254 buf += ETH_GSTRING_LEN;
255 sprintf(buf, "[%d]: tx_mcast_bytes", i);
256 buf += ETH_GSTRING_LEN;
257 sprintf(buf, "[%d]: tx_bcast_bytes", i);
258 buf += ETH_GSTRING_LEN;
259 sprintf(buf, "[%d]: tpa_packets", i);
260 buf += ETH_GSTRING_LEN;
261 sprintf(buf, "[%d]: tpa_bytes", i);
262 buf += ETH_GSTRING_LEN;
263 sprintf(buf, "[%d]: tpa_events", i);
264 buf += ETH_GSTRING_LEN;
265 sprintf(buf, "[%d]: tpa_aborts", i);
266 buf += ETH_GSTRING_LEN;
267 sprintf(buf, "[%d]: rx_l4_csum_errors", i);
268 buf += ETH_GSTRING_LEN;
269 }
270 if (bp->flags & BNXT_FLAG_PORT_STATS) {
271 for (i = 0; i < BNXT_NUM_PORT_STATS; i++) {
272 strcpy(buf, bnxt_port_stats_arr[i].string);
273 buf += ETH_GSTRING_LEN;
274 }
275 }
276 break;
277 default:
278 netdev_err(bp->dev, "bnxt_get_strings invalid request %x\n",
279 stringset);
280 break;
281 }
282 }
283
284 static void bnxt_get_ringparam(struct net_device *dev,
285 struct ethtool_ringparam *ering)
286 {
287 struct bnxt *bp = netdev_priv(dev);
288
289 ering->rx_max_pending = BNXT_MAX_RX_DESC_CNT;
290 ering->rx_jumbo_max_pending = BNXT_MAX_RX_JUM_DESC_CNT;
291 ering->tx_max_pending = BNXT_MAX_TX_DESC_CNT;
292
293 ering->rx_pending = bp->rx_ring_size;
294 ering->rx_jumbo_pending = bp->rx_agg_ring_size;
295 ering->tx_pending = bp->tx_ring_size;
296 }
297
298 static int bnxt_set_ringparam(struct net_device *dev,
299 struct ethtool_ringparam *ering)
300 {
301 struct bnxt *bp = netdev_priv(dev);
302
303 if ((ering->rx_pending > BNXT_MAX_RX_DESC_CNT) ||
304 (ering->tx_pending > BNXT_MAX_TX_DESC_CNT) ||
305 (ering->tx_pending <= MAX_SKB_FRAGS))
306 return -EINVAL;
307
308 if (netif_running(dev))
309 bnxt_close_nic(bp, false, false);
310
311 bp->rx_ring_size = ering->rx_pending;
312 bp->tx_ring_size = ering->tx_pending;
313 bnxt_set_ring_params(bp);
314
315 if (netif_running(dev))
316 return bnxt_open_nic(bp, false, false);
317
318 return 0;
319 }
320
321 static void bnxt_get_channels(struct net_device *dev,
322 struct ethtool_channels *channel)
323 {
324 struct bnxt *bp = netdev_priv(dev);
325 int max_rx_rings, max_tx_rings, tcs;
326
327 bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, true);
328 channel->max_combined = max_rx_rings;
329
330 bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, false);
331 tcs = netdev_get_num_tc(dev);
332 if (tcs > 1)
333 max_tx_rings /= tcs;
334
335 channel->max_rx = max_rx_rings;
336 channel->max_tx = max_tx_rings;
337 channel->max_other = 0;
338 if (bp->flags & BNXT_FLAG_SHARED_RINGS) {
339 channel->combined_count = bp->rx_nr_rings;
340 } else {
341 channel->rx_count = bp->rx_nr_rings;
342 channel->tx_count = bp->tx_nr_rings_per_tc;
343 }
344 }
345
346 static int bnxt_set_channels(struct net_device *dev,
347 struct ethtool_channels *channel)
348 {
349 struct bnxt *bp = netdev_priv(dev);
350 int max_rx_rings, max_tx_rings, tcs;
351 u32 rc = 0;
352 bool sh = false;
353
354 if (channel->other_count)
355 return -EINVAL;
356
357 if (!channel->combined_count &&
358 (!channel->rx_count || !channel->tx_count))
359 return -EINVAL;
360
361 if (channel->combined_count &&
362 (channel->rx_count || channel->tx_count))
363 return -EINVAL;
364
365 if (channel->combined_count)
366 sh = true;
367
368 bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, sh);
369
370 tcs = netdev_get_num_tc(dev);
371 if (tcs > 1)
372 max_tx_rings /= tcs;
373
374 if (sh && (channel->combined_count > max_rx_rings ||
375 channel->combined_count > max_tx_rings))
376 return -ENOMEM;
377
378 if (!sh && (channel->rx_count > max_rx_rings ||
379 channel->tx_count > max_tx_rings))
380 return -ENOMEM;
381
382 if (netif_running(dev)) {
383 if (BNXT_PF(bp)) {
384 /* TODO CHIMP_FW: Send message to all VF's
385 * before PF unload
386 */
387 }
388 rc = bnxt_close_nic(bp, true, false);
389 if (rc) {
390 netdev_err(bp->dev, "Set channel failure rc :%x\n",
391 rc);
392 return rc;
393 }
394 }
395
396 if (sh) {
397 bp->flags |= BNXT_FLAG_SHARED_RINGS;
398 bp->rx_nr_rings = channel->combined_count;
399 bp->tx_nr_rings_per_tc = channel->combined_count;
400 } else {
401 bp->flags &= ~BNXT_FLAG_SHARED_RINGS;
402 bp->rx_nr_rings = channel->rx_count;
403 bp->tx_nr_rings_per_tc = channel->tx_count;
404 }
405
406 bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
407 if (tcs > 1)
408 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs;
409
410 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
411 bp->tx_nr_rings + bp->rx_nr_rings;
412
413 bp->num_stat_ctxs = bp->cp_nr_rings;
414
415 /* After changing number of rx channels, update NTUPLE feature. */
416 netdev_update_features(dev);
417 if (netif_running(dev)) {
418 rc = bnxt_open_nic(bp, true, false);
419 if ((!rc) && BNXT_PF(bp)) {
420 /* TODO CHIMP_FW: Send message to all VF's
421 * to renable
422 */
423 }
424 }
425
426 return rc;
427 }
428
429 #ifdef CONFIG_RFS_ACCEL
430 static int bnxt_grxclsrlall(struct bnxt *bp, struct ethtool_rxnfc *cmd,
431 u32 *rule_locs)
432 {
433 int i, j = 0;
434
435 cmd->data = bp->ntp_fltr_count;
436 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
437 struct hlist_head *head;
438 struct bnxt_ntuple_filter *fltr;
439
440 head = &bp->ntp_fltr_hash_tbl[i];
441 rcu_read_lock();
442 hlist_for_each_entry_rcu(fltr, head, hash) {
443 if (j == cmd->rule_cnt)
444 break;
445 rule_locs[j++] = fltr->sw_id;
446 }
447 rcu_read_unlock();
448 if (j == cmd->rule_cnt)
449 break;
450 }
451 cmd->rule_cnt = j;
452 return 0;
453 }
454
455 static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
456 {
457 struct ethtool_rx_flow_spec *fs =
458 (struct ethtool_rx_flow_spec *)&cmd->fs;
459 struct bnxt_ntuple_filter *fltr;
460 struct flow_keys *fkeys;
461 int i, rc = -EINVAL;
462
463 if (fs->location < 0 || fs->location >= BNXT_NTP_FLTR_MAX_FLTR)
464 return rc;
465
466 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
467 struct hlist_head *head;
468
469 head = &bp->ntp_fltr_hash_tbl[i];
470 rcu_read_lock();
471 hlist_for_each_entry_rcu(fltr, head, hash) {
472 if (fltr->sw_id == fs->location)
473 goto fltr_found;
474 }
475 rcu_read_unlock();
476 }
477 return rc;
478
479 fltr_found:
480 fkeys = &fltr->fkeys;
481 if (fkeys->basic.ip_proto == IPPROTO_TCP)
482 fs->flow_type = TCP_V4_FLOW;
483 else if (fkeys->basic.ip_proto == IPPROTO_UDP)
484 fs->flow_type = UDP_V4_FLOW;
485 else
486 goto fltr_err;
487
488 fs->h_u.tcp_ip4_spec.ip4src = fkeys->addrs.v4addrs.src;
489 fs->m_u.tcp_ip4_spec.ip4src = cpu_to_be32(~0);
490
491 fs->h_u.tcp_ip4_spec.ip4dst = fkeys->addrs.v4addrs.dst;
492 fs->m_u.tcp_ip4_spec.ip4dst = cpu_to_be32(~0);
493
494 fs->h_u.tcp_ip4_spec.psrc = fkeys->ports.src;
495 fs->m_u.tcp_ip4_spec.psrc = cpu_to_be16(~0);
496
497 fs->h_u.tcp_ip4_spec.pdst = fkeys->ports.dst;
498 fs->m_u.tcp_ip4_spec.pdst = cpu_to_be16(~0);
499
500 fs->ring_cookie = fltr->rxq;
501 rc = 0;
502
503 fltr_err:
504 rcu_read_unlock();
505
506 return rc;
507 }
508
509 static int bnxt_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
510 u32 *rule_locs)
511 {
512 struct bnxt *bp = netdev_priv(dev);
513 int rc = 0;
514
515 switch (cmd->cmd) {
516 case ETHTOOL_GRXRINGS:
517 cmd->data = bp->rx_nr_rings;
518 break;
519
520 case ETHTOOL_GRXCLSRLCNT:
521 cmd->rule_cnt = bp->ntp_fltr_count;
522 cmd->data = BNXT_NTP_FLTR_MAX_FLTR;
523 break;
524
525 case ETHTOOL_GRXCLSRLALL:
526 rc = bnxt_grxclsrlall(bp, cmd, (u32 *)rule_locs);
527 break;
528
529 case ETHTOOL_GRXCLSRULE:
530 rc = bnxt_grxclsrule(bp, cmd);
531 break;
532
533 default:
534 rc = -EOPNOTSUPP;
535 break;
536 }
537
538 return rc;
539 }
540 #endif
541
542 static u32 bnxt_get_rxfh_indir_size(struct net_device *dev)
543 {
544 return HW_HASH_INDEX_SIZE;
545 }
546
547 static u32 bnxt_get_rxfh_key_size(struct net_device *dev)
548 {
549 return HW_HASH_KEY_SIZE;
550 }
551
552 static int bnxt_get_rxfh(struct net_device *dev, u32 *indir, u8 *key,
553 u8 *hfunc)
554 {
555 struct bnxt *bp = netdev_priv(dev);
556 struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
557 int i = 0;
558
559 if (hfunc)
560 *hfunc = ETH_RSS_HASH_TOP;
561
562 if (indir)
563 for (i = 0; i < HW_HASH_INDEX_SIZE; i++)
564 indir[i] = le16_to_cpu(vnic->rss_table[i]);
565
566 if (key)
567 memcpy(key, vnic->rss_hash_key, HW_HASH_KEY_SIZE);
568
569 return 0;
570 }
571
572 static void bnxt_get_drvinfo(struct net_device *dev,
573 struct ethtool_drvinfo *info)
574 {
575 struct bnxt *bp = netdev_priv(dev);
576 char *pkglog;
577 char *pkgver = NULL;
578
579 pkglog = kmalloc(BNX_PKG_LOG_MAX_LENGTH, GFP_KERNEL);
580 if (pkglog)
581 pkgver = bnxt_get_pkgver(dev, pkglog, BNX_PKG_LOG_MAX_LENGTH);
582 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
583 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
584 if (pkgver && *pkgver != 0 && isdigit(*pkgver))
585 snprintf(info->fw_version, sizeof(info->fw_version) - 1,
586 "%s pkg %s", bp->fw_ver_str, pkgver);
587 else
588 strlcpy(info->fw_version, bp->fw_ver_str,
589 sizeof(info->fw_version));
590 strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
591 info->n_stats = BNXT_NUM_STATS * bp->cp_nr_rings;
592 info->testinfo_len = BNXT_NUM_TESTS(bp);
593 /* TODO CHIMP_FW: eeprom dump details */
594 info->eedump_len = 0;
595 /* TODO CHIMP FW: reg dump details */
596 info->regdump_len = 0;
597 kfree(pkglog);
598 }
599
600 static u32 _bnxt_fw_to_ethtool_adv_spds(u16 fw_speeds, u8 fw_pause)
601 {
602 u32 speed_mask = 0;
603
604 /* TODO: support 25GB, 40GB, 50GB with different cable type */
605 /* set the advertised speeds */
606 if (fw_speeds & BNXT_LINK_SPEED_MSK_100MB)
607 speed_mask |= ADVERTISED_100baseT_Full;
608 if (fw_speeds & BNXT_LINK_SPEED_MSK_1GB)
609 speed_mask |= ADVERTISED_1000baseT_Full;
610 if (fw_speeds & BNXT_LINK_SPEED_MSK_2_5GB)
611 speed_mask |= ADVERTISED_2500baseX_Full;
612 if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
613 speed_mask |= ADVERTISED_10000baseT_Full;
614 if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
615 speed_mask |= ADVERTISED_40000baseCR4_Full;
616
617 if ((fw_pause & BNXT_LINK_PAUSE_BOTH) == BNXT_LINK_PAUSE_BOTH)
618 speed_mask |= ADVERTISED_Pause;
619 else if (fw_pause & BNXT_LINK_PAUSE_TX)
620 speed_mask |= ADVERTISED_Asym_Pause;
621 else if (fw_pause & BNXT_LINK_PAUSE_RX)
622 speed_mask |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
623
624 return speed_mask;
625 }
626
627 static u32 bnxt_fw_to_ethtool_advertised_spds(struct bnxt_link_info *link_info)
628 {
629 u16 fw_speeds = link_info->auto_link_speeds;
630 u8 fw_pause = 0;
631
632 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
633 fw_pause = link_info->auto_pause_setting;
634
635 return _bnxt_fw_to_ethtool_adv_spds(fw_speeds, fw_pause);
636 }
637
638 static u32 bnxt_fw_to_ethtool_lp_adv(struct bnxt_link_info *link_info)
639 {
640 u16 fw_speeds = link_info->lp_auto_link_speeds;
641 u8 fw_pause = 0;
642
643 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
644 fw_pause = link_info->lp_pause;
645
646 return _bnxt_fw_to_ethtool_adv_spds(fw_speeds, fw_pause);
647 }
648
649 static u32 bnxt_fw_to_ethtool_support_spds(struct bnxt_link_info *link_info)
650 {
651 u16 fw_speeds = link_info->support_speeds;
652 u32 supported;
653
654 supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
655 return supported | SUPPORTED_Pause | SUPPORTED_Asym_Pause;
656 }
657
658 u32 bnxt_fw_to_ethtool_speed(u16 fw_link_speed)
659 {
660 switch (fw_link_speed) {
661 case BNXT_LINK_SPEED_100MB:
662 return SPEED_100;
663 case BNXT_LINK_SPEED_1GB:
664 return SPEED_1000;
665 case BNXT_LINK_SPEED_2_5GB:
666 return SPEED_2500;
667 case BNXT_LINK_SPEED_10GB:
668 return SPEED_10000;
669 case BNXT_LINK_SPEED_20GB:
670 return SPEED_20000;
671 case BNXT_LINK_SPEED_25GB:
672 return SPEED_25000;
673 case BNXT_LINK_SPEED_40GB:
674 return SPEED_40000;
675 case BNXT_LINK_SPEED_50GB:
676 return SPEED_50000;
677 default:
678 return SPEED_UNKNOWN;
679 }
680 }
681
682 static int bnxt_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
683 {
684 struct bnxt *bp = netdev_priv(dev);
685 struct bnxt_link_info *link_info = &bp->link_info;
686 u16 ethtool_speed;
687
688 cmd->supported = bnxt_fw_to_ethtool_support_spds(link_info);
689
690 if (link_info->auto_link_speeds)
691 cmd->supported |= SUPPORTED_Autoneg;
692
693 if (link_info->autoneg) {
694 cmd->advertising =
695 bnxt_fw_to_ethtool_advertised_spds(link_info);
696 cmd->advertising |= ADVERTISED_Autoneg;
697 cmd->autoneg = AUTONEG_ENABLE;
698 if (link_info->phy_link_status == BNXT_LINK_LINK)
699 cmd->lp_advertising =
700 bnxt_fw_to_ethtool_lp_adv(link_info);
701 } else {
702 cmd->autoneg = AUTONEG_DISABLE;
703 cmd->advertising = 0;
704 }
705
706 cmd->port = PORT_NONE;
707 if (link_info->media_type == PORT_PHY_QCFG_RESP_MEDIA_TYPE_TP) {
708 cmd->port = PORT_TP;
709 cmd->supported |= SUPPORTED_TP;
710 cmd->advertising |= ADVERTISED_TP;
711 } else {
712 cmd->supported |= SUPPORTED_FIBRE;
713 cmd->advertising |= ADVERTISED_FIBRE;
714
715 if (link_info->media_type == PORT_PHY_QCFG_RESP_MEDIA_TYPE_DAC)
716 cmd->port = PORT_DA;
717 else if (link_info->media_type ==
718 PORT_PHY_QCFG_RESP_MEDIA_TYPE_FIBRE)
719 cmd->port = PORT_FIBRE;
720 }
721
722 if (link_info->phy_link_status == BNXT_LINK_LINK) {
723 if (link_info->duplex & BNXT_LINK_DUPLEX_FULL)
724 cmd->duplex = DUPLEX_FULL;
725 } else {
726 cmd->duplex = DUPLEX_UNKNOWN;
727 }
728 ethtool_speed = bnxt_fw_to_ethtool_speed(link_info->link_speed);
729 ethtool_cmd_speed_set(cmd, ethtool_speed);
730 if (link_info->transceiver ==
731 PORT_PHY_QCFG_RESP_XCVR_PKG_TYPE_XCVR_INTERNAL)
732 cmd->transceiver = XCVR_INTERNAL;
733 else
734 cmd->transceiver = XCVR_EXTERNAL;
735 cmd->phy_address = link_info->phy_addr;
736
737 return 0;
738 }
739
740 static u32 bnxt_get_fw_speed(struct net_device *dev, u16 ethtool_speed)
741 {
742 switch (ethtool_speed) {
743 case SPEED_100:
744 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_100MB;
745 case SPEED_1000:
746 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_1GB;
747 case SPEED_2500:
748 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_2_5GB;
749 case SPEED_10000:
750 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_10GB;
751 case SPEED_20000:
752 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_20GB;
753 case SPEED_25000:
754 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_25GB;
755 case SPEED_40000:
756 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_40GB;
757 case SPEED_50000:
758 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_50GB;
759 default:
760 netdev_err(dev, "unsupported speed!\n");
761 break;
762 }
763 return 0;
764 }
765
766 static u16 bnxt_get_fw_auto_link_speeds(u32 advertising)
767 {
768 u16 fw_speed_mask = 0;
769
770 /* only support autoneg at speed 100, 1000, and 10000 */
771 if (advertising & (ADVERTISED_100baseT_Full |
772 ADVERTISED_100baseT_Half)) {
773 fw_speed_mask |= BNXT_LINK_SPEED_MSK_100MB;
774 }
775 if (advertising & (ADVERTISED_1000baseT_Full |
776 ADVERTISED_1000baseT_Half)) {
777 fw_speed_mask |= BNXT_LINK_SPEED_MSK_1GB;
778 }
779 if (advertising & ADVERTISED_10000baseT_Full)
780 fw_speed_mask |= BNXT_LINK_SPEED_MSK_10GB;
781
782 if (advertising & ADVERTISED_40000baseCR4_Full)
783 fw_speed_mask |= BNXT_LINK_SPEED_MSK_40GB;
784
785 return fw_speed_mask;
786 }
787
788 static int bnxt_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
789 {
790 int rc = 0;
791 struct bnxt *bp = netdev_priv(dev);
792 struct bnxt_link_info *link_info = &bp->link_info;
793 u32 speed, fw_advertising = 0;
794 bool set_pause = false;
795
796 if (BNXT_VF(bp))
797 return rc;
798
799 if (cmd->autoneg == AUTONEG_ENABLE) {
800 u32 supported_spds = bnxt_fw_to_ethtool_support_spds(link_info);
801
802 if (cmd->advertising & ~(supported_spds | ADVERTISED_Autoneg |
803 ADVERTISED_TP | ADVERTISED_FIBRE)) {
804 netdev_err(dev, "Unsupported advertising mask (adv: 0x%x)\n",
805 cmd->advertising);
806 rc = -EINVAL;
807 goto set_setting_exit;
808 }
809 fw_advertising = bnxt_get_fw_auto_link_speeds(cmd->advertising);
810 if (fw_advertising & ~link_info->support_speeds) {
811 netdev_err(dev, "Advertising parameters are not supported! (adv: 0x%x)\n",
812 cmd->advertising);
813 rc = -EINVAL;
814 goto set_setting_exit;
815 }
816 link_info->autoneg |= BNXT_AUTONEG_SPEED;
817 if (!fw_advertising)
818 link_info->advertising = link_info->support_speeds;
819 else
820 link_info->advertising = fw_advertising;
821 /* any change to autoneg will cause link change, therefore the
822 * driver should put back the original pause setting in autoneg
823 */
824 set_pause = true;
825 } else {
826 /* TODO: currently don't support half duplex */
827 if (cmd->duplex == DUPLEX_HALF) {
828 netdev_err(dev, "HALF DUPLEX is not supported!\n");
829 rc = -EINVAL;
830 goto set_setting_exit;
831 }
832 /* If received a request for an unknown duplex, assume full*/
833 if (cmd->duplex == DUPLEX_UNKNOWN)
834 cmd->duplex = DUPLEX_FULL;
835 speed = ethtool_cmd_speed(cmd);
836 link_info->req_link_speed = bnxt_get_fw_speed(dev, speed);
837 link_info->req_duplex = BNXT_LINK_DUPLEX_FULL;
838 link_info->autoneg = 0;
839 link_info->advertising = 0;
840 }
841
842 if (netif_running(dev))
843 rc = bnxt_hwrm_set_link_setting(bp, set_pause);
844
845 set_setting_exit:
846 return rc;
847 }
848
849 static void bnxt_get_pauseparam(struct net_device *dev,
850 struct ethtool_pauseparam *epause)
851 {
852 struct bnxt *bp = netdev_priv(dev);
853 struct bnxt_link_info *link_info = &bp->link_info;
854
855 if (BNXT_VF(bp))
856 return;
857 epause->autoneg = !!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL);
858 epause->rx_pause = !!(link_info->req_flow_ctrl & BNXT_LINK_PAUSE_RX);
859 epause->tx_pause = !!(link_info->req_flow_ctrl & BNXT_LINK_PAUSE_TX);
860 }
861
862 static int bnxt_set_pauseparam(struct net_device *dev,
863 struct ethtool_pauseparam *epause)
864 {
865 int rc = 0;
866 struct bnxt *bp = netdev_priv(dev);
867 struct bnxt_link_info *link_info = &bp->link_info;
868
869 if (BNXT_VF(bp))
870 return rc;
871
872 if (epause->autoneg) {
873 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
874 return -EINVAL;
875
876 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
877 if (bp->hwrm_spec_code >= 0x10201)
878 link_info->req_flow_ctrl =
879 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE;
880 } else {
881 /* when transition from auto pause to force pause,
882 * force a link change
883 */
884 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
885 link_info->force_link_chng = true;
886 link_info->autoneg &= ~BNXT_AUTONEG_FLOW_CTRL;
887 link_info->req_flow_ctrl = 0;
888 }
889 if (epause->rx_pause)
890 link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_RX;
891
892 if (epause->tx_pause)
893 link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_TX;
894
895 if (netif_running(dev))
896 rc = bnxt_hwrm_set_pause(bp);
897 return rc;
898 }
899
900 static u32 bnxt_get_link(struct net_device *dev)
901 {
902 struct bnxt *bp = netdev_priv(dev);
903
904 /* TODO: handle MF, VF, driver close case */
905 return bp->link_info.link_up;
906 }
907
908 static int bnxt_flash_nvram(struct net_device *dev,
909 u16 dir_type,
910 u16 dir_ordinal,
911 u16 dir_ext,
912 u16 dir_attr,
913 const u8 *data,
914 size_t data_len)
915 {
916 struct bnxt *bp = netdev_priv(dev);
917 int rc;
918 struct hwrm_nvm_write_input req = {0};
919 dma_addr_t dma_handle;
920 u8 *kmem;
921
922 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_WRITE, -1, -1);
923
924 req.dir_type = cpu_to_le16(dir_type);
925 req.dir_ordinal = cpu_to_le16(dir_ordinal);
926 req.dir_ext = cpu_to_le16(dir_ext);
927 req.dir_attr = cpu_to_le16(dir_attr);
928 req.dir_data_length = cpu_to_le32(data_len);
929
930 kmem = dma_alloc_coherent(&bp->pdev->dev, data_len, &dma_handle,
931 GFP_KERNEL);
932 if (!kmem) {
933 netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
934 (unsigned)data_len);
935 return -ENOMEM;
936 }
937 memcpy(kmem, data, data_len);
938 req.host_src_addr = cpu_to_le64(dma_handle);
939
940 rc = hwrm_send_message(bp, &req, sizeof(req), FLASH_NVRAM_TIMEOUT);
941 dma_free_coherent(&bp->pdev->dev, data_len, kmem, dma_handle);
942
943 return rc;
944 }
945
946 static int bnxt_firmware_reset(struct net_device *dev,
947 u16 dir_type)
948 {
949 struct bnxt *bp = netdev_priv(dev);
950 struct hwrm_fw_reset_input req = {0};
951
952 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
953
954 /* TODO: Support ASAP ChiMP self-reset (e.g. upon PF driver unload) */
955 /* TODO: Address self-reset of APE/KONG/BONO/TANG or ungraceful reset */
956 /* (e.g. when firmware isn't already running) */
957 switch (dir_type) {
958 case BNX_DIR_TYPE_CHIMP_PATCH:
959 case BNX_DIR_TYPE_BOOTCODE:
960 case BNX_DIR_TYPE_BOOTCODE_2:
961 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_BOOT;
962 /* Self-reset ChiMP upon next PCIe reset: */
963 req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTPCIERST;
964 break;
965 case BNX_DIR_TYPE_APE_FW:
966 case BNX_DIR_TYPE_APE_PATCH:
967 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_MGMT;
968 break;
969 case BNX_DIR_TYPE_KONG_FW:
970 case BNX_DIR_TYPE_KONG_PATCH:
971 req.embedded_proc_type =
972 FW_RESET_REQ_EMBEDDED_PROC_TYPE_NETCTRL;
973 break;
974 case BNX_DIR_TYPE_BONO_FW:
975 case BNX_DIR_TYPE_BONO_PATCH:
976 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_ROCE;
977 break;
978 default:
979 return -EINVAL;
980 }
981
982 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
983 }
984
985 static int bnxt_flash_firmware(struct net_device *dev,
986 u16 dir_type,
987 const u8 *fw_data,
988 size_t fw_size)
989 {
990 int rc = 0;
991 u16 code_type;
992 u32 stored_crc;
993 u32 calculated_crc;
994 struct bnxt_fw_header *header = (struct bnxt_fw_header *)fw_data;
995
996 switch (dir_type) {
997 case BNX_DIR_TYPE_BOOTCODE:
998 case BNX_DIR_TYPE_BOOTCODE_2:
999 code_type = CODE_BOOT;
1000 break;
1001 case BNX_DIR_TYPE_APE_FW:
1002 code_type = CODE_MCTP_PASSTHRU;
1003 break;
1004 default:
1005 netdev_err(dev, "Unsupported directory entry type: %u\n",
1006 dir_type);
1007 return -EINVAL;
1008 }
1009 if (fw_size < sizeof(struct bnxt_fw_header)) {
1010 netdev_err(dev, "Invalid firmware file size: %u\n",
1011 (unsigned int)fw_size);
1012 return -EINVAL;
1013 }
1014 if (header->signature != cpu_to_le32(BNXT_FIRMWARE_BIN_SIGNATURE)) {
1015 netdev_err(dev, "Invalid firmware signature: %08X\n",
1016 le32_to_cpu(header->signature));
1017 return -EINVAL;
1018 }
1019 if (header->code_type != code_type) {
1020 netdev_err(dev, "Expected firmware type: %d, read: %d\n",
1021 code_type, header->code_type);
1022 return -EINVAL;
1023 }
1024 if (header->device != DEVICE_CUMULUS_FAMILY) {
1025 netdev_err(dev, "Expected firmware device family %d, read: %d\n",
1026 DEVICE_CUMULUS_FAMILY, header->device);
1027 return -EINVAL;
1028 }
1029 /* Confirm the CRC32 checksum of the file: */
1030 stored_crc = le32_to_cpu(*(__le32 *)(fw_data + fw_size -
1031 sizeof(stored_crc)));
1032 calculated_crc = ~crc32(~0, fw_data, fw_size - sizeof(stored_crc));
1033 if (calculated_crc != stored_crc) {
1034 netdev_err(dev, "Firmware file CRC32 checksum (%08lX) does not match calculated checksum (%08lX)\n",
1035 (unsigned long)stored_crc,
1036 (unsigned long)calculated_crc);
1037 return -EINVAL;
1038 }
1039 /* TODO: Validate digital signature (RSA-encrypted SHA-256 hash) here */
1040 rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
1041 0, 0, fw_data, fw_size);
1042 if (rc == 0) /* Firmware update successful */
1043 rc = bnxt_firmware_reset(dev, dir_type);
1044
1045 return rc;
1046 }
1047
1048 static bool bnxt_dir_type_is_ape_bin_format(u16 dir_type)
1049 {
1050 switch (dir_type) {
1051 case BNX_DIR_TYPE_CHIMP_PATCH:
1052 case BNX_DIR_TYPE_BOOTCODE:
1053 case BNX_DIR_TYPE_BOOTCODE_2:
1054 case BNX_DIR_TYPE_APE_FW:
1055 case BNX_DIR_TYPE_APE_PATCH:
1056 case BNX_DIR_TYPE_KONG_FW:
1057 case BNX_DIR_TYPE_KONG_PATCH:
1058 return true;
1059 }
1060
1061 return false;
1062 }
1063
1064 static bool bnxt_dir_type_is_unprotected_exec_format(u16 dir_type)
1065 {
1066 switch (dir_type) {
1067 case BNX_DIR_TYPE_AVS:
1068 case BNX_DIR_TYPE_EXP_ROM_MBA:
1069 case BNX_DIR_TYPE_PCIE:
1070 case BNX_DIR_TYPE_TSCF_UCODE:
1071 case BNX_DIR_TYPE_EXT_PHY:
1072 case BNX_DIR_TYPE_CCM:
1073 case BNX_DIR_TYPE_ISCSI_BOOT:
1074 case BNX_DIR_TYPE_ISCSI_BOOT_IPV6:
1075 case BNX_DIR_TYPE_ISCSI_BOOT_IPV4N6:
1076 return true;
1077 }
1078
1079 return false;
1080 }
1081
1082 static bool bnxt_dir_type_is_executable(u16 dir_type)
1083 {
1084 return bnxt_dir_type_is_ape_bin_format(dir_type) ||
1085 bnxt_dir_type_is_unprotected_exec_format(dir_type);
1086 }
1087
1088 static int bnxt_flash_firmware_from_file(struct net_device *dev,
1089 u16 dir_type,
1090 const char *filename)
1091 {
1092 const struct firmware *fw;
1093 int rc;
1094
1095 if (bnxt_dir_type_is_executable(dir_type) == false)
1096 return -EINVAL;
1097
1098 rc = request_firmware(&fw, filename, &dev->dev);
1099 if (rc != 0) {
1100 netdev_err(dev, "Error %d requesting firmware file: %s\n",
1101 rc, filename);
1102 return rc;
1103 }
1104 if (bnxt_dir_type_is_ape_bin_format(dir_type) == true)
1105 rc = bnxt_flash_firmware(dev, dir_type, fw->data, fw->size);
1106 else
1107 rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
1108 0, 0, fw->data, fw->size);
1109 release_firmware(fw);
1110 return rc;
1111 }
1112
1113 static int bnxt_flash_package_from_file(struct net_device *dev,
1114 char *filename)
1115 {
1116 netdev_err(dev, "packages are not yet supported\n");
1117 return -EINVAL;
1118 }
1119
1120 static int bnxt_flash_device(struct net_device *dev,
1121 struct ethtool_flash *flash)
1122 {
1123 if (!BNXT_PF((struct bnxt *)netdev_priv(dev))) {
1124 netdev_err(dev, "flashdev not supported from a virtual function\n");
1125 return -EINVAL;
1126 }
1127
1128 if (flash->region == ETHTOOL_FLASH_ALL_REGIONS)
1129 return bnxt_flash_package_from_file(dev, flash->data);
1130
1131 return bnxt_flash_firmware_from_file(dev, flash->region, flash->data);
1132 }
1133
1134 static int nvm_get_dir_info(struct net_device *dev, u32 *entries, u32 *length)
1135 {
1136 struct bnxt *bp = netdev_priv(dev);
1137 int rc;
1138 struct hwrm_nvm_get_dir_info_input req = {0};
1139 struct hwrm_nvm_get_dir_info_output *output = bp->hwrm_cmd_resp_addr;
1140
1141 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_INFO, -1, -1);
1142
1143 mutex_lock(&bp->hwrm_cmd_lock);
1144 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1145 if (!rc) {
1146 *entries = le32_to_cpu(output->entries);
1147 *length = le32_to_cpu(output->entry_length);
1148 }
1149 mutex_unlock(&bp->hwrm_cmd_lock);
1150 return rc;
1151 }
1152
1153 static int bnxt_get_eeprom_len(struct net_device *dev)
1154 {
1155 /* The -1 return value allows the entire 32-bit range of offsets to be
1156 * passed via the ethtool command-line utility.
1157 */
1158 return -1;
1159 }
1160
1161 static int bnxt_get_nvram_directory(struct net_device *dev, u32 len, u8 *data)
1162 {
1163 struct bnxt *bp = netdev_priv(dev);
1164 int rc;
1165 u32 dir_entries;
1166 u32 entry_length;
1167 u8 *buf;
1168 size_t buflen;
1169 dma_addr_t dma_handle;
1170 struct hwrm_nvm_get_dir_entries_input req = {0};
1171
1172 rc = nvm_get_dir_info(dev, &dir_entries, &entry_length);
1173 if (rc != 0)
1174 return rc;
1175
1176 /* Insert 2 bytes of directory info (count and size of entries) */
1177 if (len < 2)
1178 return -EINVAL;
1179
1180 *data++ = dir_entries;
1181 *data++ = entry_length;
1182 len -= 2;
1183 memset(data, 0xff, len);
1184
1185 buflen = dir_entries * entry_length;
1186 buf = dma_alloc_coherent(&bp->pdev->dev, buflen, &dma_handle,
1187 GFP_KERNEL);
1188 if (!buf) {
1189 netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
1190 (unsigned)buflen);
1191 return -ENOMEM;
1192 }
1193 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_ENTRIES, -1, -1);
1194 req.host_dest_addr = cpu_to_le64(dma_handle);
1195 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1196 if (rc == 0)
1197 memcpy(data, buf, len > buflen ? buflen : len);
1198 dma_free_coherent(&bp->pdev->dev, buflen, buf, dma_handle);
1199 return rc;
1200 }
1201
1202 static int bnxt_get_nvram_item(struct net_device *dev, u32 index, u32 offset,
1203 u32 length, u8 *data)
1204 {
1205 struct bnxt *bp = netdev_priv(dev);
1206 int rc;
1207 u8 *buf;
1208 dma_addr_t dma_handle;
1209 struct hwrm_nvm_read_input req = {0};
1210
1211 buf = dma_alloc_coherent(&bp->pdev->dev, length, &dma_handle,
1212 GFP_KERNEL);
1213 if (!buf) {
1214 netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
1215 (unsigned)length);
1216 return -ENOMEM;
1217 }
1218 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_READ, -1, -1);
1219 req.host_dest_addr = cpu_to_le64(dma_handle);
1220 req.dir_idx = cpu_to_le16(index);
1221 req.offset = cpu_to_le32(offset);
1222 req.len = cpu_to_le32(length);
1223
1224 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1225 if (rc == 0)
1226 memcpy(data, buf, length);
1227 dma_free_coherent(&bp->pdev->dev, length, buf, dma_handle);
1228 return rc;
1229 }
1230
1231 static int bnxt_find_nvram_item(struct net_device *dev, u16 type, u16 ordinal,
1232 u16 ext, u16 *index, u32 *item_length,
1233 u32 *data_length)
1234 {
1235 struct bnxt *bp = netdev_priv(dev);
1236 int rc;
1237 struct hwrm_nvm_find_dir_entry_input req = {0};
1238 struct hwrm_nvm_find_dir_entry_output *output = bp->hwrm_cmd_resp_addr;
1239
1240 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_FIND_DIR_ENTRY, -1, -1);
1241 req.enables = 0;
1242 req.dir_idx = 0;
1243 req.dir_type = cpu_to_le16(type);
1244 req.dir_ordinal = cpu_to_le16(ordinal);
1245 req.dir_ext = cpu_to_le16(ext);
1246 req.opt_ordinal = NVM_FIND_DIR_ENTRY_REQ_OPT_ORDINAL_EQ;
1247 rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1248 if (rc == 0) {
1249 if (index)
1250 *index = le16_to_cpu(output->dir_idx);
1251 if (item_length)
1252 *item_length = le32_to_cpu(output->dir_item_length);
1253 if (data_length)
1254 *data_length = le32_to_cpu(output->dir_data_length);
1255 }
1256 return rc;
1257 }
1258
1259 static char *bnxt_parse_pkglog(int desired_field, u8 *data, size_t datalen)
1260 {
1261 char *retval = NULL;
1262 char *p;
1263 char *value;
1264 int field = 0;
1265
1266 if (datalen < 1)
1267 return NULL;
1268 /* null-terminate the log data (removing last '\n'): */
1269 data[datalen - 1] = 0;
1270 for (p = data; *p != 0; p++) {
1271 field = 0;
1272 retval = NULL;
1273 while (*p != 0 && *p != '\n') {
1274 value = p;
1275 while (*p != 0 && *p != '\t' && *p != '\n')
1276 p++;
1277 if (field == desired_field)
1278 retval = value;
1279 if (*p != '\t')
1280 break;
1281 *p = 0;
1282 field++;
1283 p++;
1284 }
1285 if (*p == 0)
1286 break;
1287 *p = 0;
1288 }
1289 return retval;
1290 }
1291
1292 static char *bnxt_get_pkgver(struct net_device *dev, char *buf, size_t buflen)
1293 {
1294 u16 index = 0;
1295 u32 datalen;
1296
1297 if (bnxt_find_nvram_item(dev, BNX_DIR_TYPE_PKG_LOG,
1298 BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
1299 &index, NULL, &datalen) != 0)
1300 return NULL;
1301
1302 memset(buf, 0, buflen);
1303 if (bnxt_get_nvram_item(dev, index, 0, datalen, buf) != 0)
1304 return NULL;
1305
1306 return bnxt_parse_pkglog(BNX_PKG_LOG_FIELD_IDX_PKG_VERSION, buf,
1307 datalen);
1308 }
1309
1310 static int bnxt_get_eeprom(struct net_device *dev,
1311 struct ethtool_eeprom *eeprom,
1312 u8 *data)
1313 {
1314 u32 index;
1315 u32 offset;
1316
1317 if (eeprom->offset == 0) /* special offset value to get directory */
1318 return bnxt_get_nvram_directory(dev, eeprom->len, data);
1319
1320 index = eeprom->offset >> 24;
1321 offset = eeprom->offset & 0xffffff;
1322
1323 if (index == 0) {
1324 netdev_err(dev, "unsupported index value: %d\n", index);
1325 return -EINVAL;
1326 }
1327
1328 return bnxt_get_nvram_item(dev, index - 1, offset, eeprom->len, data);
1329 }
1330
1331 static int bnxt_erase_nvram_directory(struct net_device *dev, u8 index)
1332 {
1333 struct bnxt *bp = netdev_priv(dev);
1334 struct hwrm_nvm_erase_dir_entry_input req = {0};
1335
1336 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_ERASE_DIR_ENTRY, -1, -1);
1337 req.dir_idx = cpu_to_le16(index);
1338 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1339 }
1340
1341 static int bnxt_set_eeprom(struct net_device *dev,
1342 struct ethtool_eeprom *eeprom,
1343 u8 *data)
1344 {
1345 struct bnxt *bp = netdev_priv(dev);
1346 u8 index, dir_op;
1347 u16 type, ext, ordinal, attr;
1348
1349 if (!BNXT_PF(bp)) {
1350 netdev_err(dev, "NVM write not supported from a virtual function\n");
1351 return -EINVAL;
1352 }
1353
1354 type = eeprom->magic >> 16;
1355
1356 if (type == 0xffff) { /* special value for directory operations */
1357 index = eeprom->magic & 0xff;
1358 dir_op = eeprom->magic >> 8;
1359 if (index == 0)
1360 return -EINVAL;
1361 switch (dir_op) {
1362 case 0x0e: /* erase */
1363 if (eeprom->offset != ~eeprom->magic)
1364 return -EINVAL;
1365 return bnxt_erase_nvram_directory(dev, index - 1);
1366 default:
1367 return -EINVAL;
1368 }
1369 }
1370
1371 /* Create or re-write an NVM item: */
1372 if (bnxt_dir_type_is_executable(type) == true)
1373 return -EINVAL;
1374 ext = eeprom->magic & 0xffff;
1375 ordinal = eeprom->offset >> 16;
1376 attr = eeprom->offset & 0xffff;
1377
1378 return bnxt_flash_nvram(dev, type, ordinal, ext, attr, data,
1379 eeprom->len);
1380 }
1381
1382 const struct ethtool_ops bnxt_ethtool_ops = {
1383 .get_settings = bnxt_get_settings,
1384 .set_settings = bnxt_set_settings,
1385 .get_pauseparam = bnxt_get_pauseparam,
1386 .set_pauseparam = bnxt_set_pauseparam,
1387 .get_drvinfo = bnxt_get_drvinfo,
1388 .get_coalesce = bnxt_get_coalesce,
1389 .set_coalesce = bnxt_set_coalesce,
1390 .get_msglevel = bnxt_get_msglevel,
1391 .set_msglevel = bnxt_set_msglevel,
1392 .get_sset_count = bnxt_get_sset_count,
1393 .get_strings = bnxt_get_strings,
1394 .get_ethtool_stats = bnxt_get_ethtool_stats,
1395 .set_ringparam = bnxt_set_ringparam,
1396 .get_ringparam = bnxt_get_ringparam,
1397 .get_channels = bnxt_get_channels,
1398 .set_channels = bnxt_set_channels,
1399 #ifdef CONFIG_RFS_ACCEL
1400 .get_rxnfc = bnxt_get_rxnfc,
1401 #endif
1402 .get_rxfh_indir_size = bnxt_get_rxfh_indir_size,
1403 .get_rxfh_key_size = bnxt_get_rxfh_key_size,
1404 .get_rxfh = bnxt_get_rxfh,
1405 .flash_device = bnxt_flash_device,
1406 .get_eeprom_len = bnxt_get_eeprom_len,
1407 .get_eeprom = bnxt_get_eeprom,
1408 .set_eeprom = bnxt_set_eeprom,
1409 .get_link = bnxt_get_link,
1410 };
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