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21#include <linux/vmalloc.h>
22
23#include "fm10k.h"
24
25struct fm10k_stats {
26 char stat_string[ETH_GSTRING_LEN];
27 int sizeof_stat;
28 int stat_offset;
29};
30
31#define FM10K_NETDEV_STAT(_net_stat) { \
32 .stat_string = #_net_stat, \
33 .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
34 .stat_offset = offsetof(struct net_device_stats, _net_stat) \
35}
36
37static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
38 FM10K_NETDEV_STAT(tx_packets),
39 FM10K_NETDEV_STAT(tx_bytes),
40 FM10K_NETDEV_STAT(tx_errors),
41 FM10K_NETDEV_STAT(rx_packets),
42 FM10K_NETDEV_STAT(rx_bytes),
43 FM10K_NETDEV_STAT(rx_errors),
44 FM10K_NETDEV_STAT(rx_dropped),
45
46
47 FM10K_NETDEV_STAT(rx_length_errors),
48 FM10K_NETDEV_STAT(rx_crc_errors),
49 FM10K_NETDEV_STAT(rx_fifo_errors),
50};
51
52#define FM10K_NETDEV_STATS_LEN ARRAY_SIZE(fm10k_gstrings_net_stats)
53
54#define FM10K_STAT(_name, _stat) { \
55 .stat_string = _name, \
56 .sizeof_stat = FIELD_SIZEOF(struct fm10k_intfc, _stat), \
57 .stat_offset = offsetof(struct fm10k_intfc, _stat) \
58}
59
60static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
61 FM10K_STAT("tx_restart_queue", restart_queue),
62 FM10K_STAT("tx_busy", tx_busy),
63 FM10K_STAT("tx_csum_errors", tx_csum_errors),
64 FM10K_STAT("rx_alloc_failed", alloc_failed),
65 FM10K_STAT("rx_csum_errors", rx_csum_errors),
66
67 FM10K_STAT("tx_packets_nic", tx_packets_nic),
68 FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
69 FM10K_STAT("rx_packets_nic", rx_packets_nic),
70 FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
71 FM10K_STAT("rx_drops_nic", rx_drops_nic),
72 FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
73 FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
74
75 FM10K_STAT("swapi_status", hw.swapi.status),
76 FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
77 FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
78
79 FM10K_STAT("reset_while_pending", hw.mac.reset_while_pending),
80
81 FM10K_STAT("tx_hang_count", tx_timeout_count),
82};
83
84static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
85 FM10K_STAT("timeout", stats.timeout.count),
86 FM10K_STAT("ur", stats.ur.count),
87 FM10K_STAT("ca", stats.ca.count),
88 FM10K_STAT("um", stats.um.count),
89 FM10K_STAT("xec", stats.xec.count),
90 FM10K_STAT("vlan_drop", stats.vlan_drop.count),
91 FM10K_STAT("loopback_drop", stats.loopback_drop.count),
92 FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
93};
94
95#define FM10K_MBX_STAT(_name, _stat) { \
96 .stat_string = _name, \
97 .sizeof_stat = FIELD_SIZEOF(struct fm10k_mbx_info, _stat), \
98 .stat_offset = offsetof(struct fm10k_mbx_info, _stat) \
99}
100
101static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
102 FM10K_MBX_STAT("mbx_tx_busy", tx_busy),
103 FM10K_MBX_STAT("mbx_tx_dropped", tx_dropped),
104 FM10K_MBX_STAT("mbx_tx_messages", tx_messages),
105 FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords),
106 FM10K_MBX_STAT("mbx_tx_mbmem_pulled", tx_mbmem_pulled),
107 FM10K_MBX_STAT("mbx_rx_messages", rx_messages),
108 FM10K_MBX_STAT("mbx_rx_dwords", rx_dwords),
109 FM10K_MBX_STAT("mbx_rx_parse_err", rx_parse_err),
110 FM10K_MBX_STAT("mbx_rx_mbmem_pushed", rx_mbmem_pushed),
111};
112
113#define FM10K_QUEUE_STAT(_name, _stat) { \
114 .stat_string = _name, \
115 .sizeof_stat = FIELD_SIZEOF(struct fm10k_ring, _stat), \
116 .stat_offset = offsetof(struct fm10k_ring, _stat) \
117}
118
119static const struct fm10k_stats fm10k_gstrings_queue_stats[] = {
120 FM10K_QUEUE_STAT("packets", stats.packets),
121 FM10K_QUEUE_STAT("bytes", stats.bytes),
122};
123
124#define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_stats)
125#define FM10K_PF_STATS_LEN ARRAY_SIZE(fm10k_gstrings_pf_stats)
126#define FM10K_MBX_STATS_LEN ARRAY_SIZE(fm10k_gstrings_mbx_stats)
127#define FM10K_QUEUE_STATS_LEN ARRAY_SIZE(fm10k_gstrings_queue_stats)
128
129#define FM10K_STATIC_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
130 FM10K_NETDEV_STATS_LEN + \
131 FM10K_MBX_STATS_LEN)
132
133static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
134 "Mailbox test (on/offline)"
135};
136
137#define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
138
139enum fm10k_self_test_types {
140 FM10K_TEST_MBX,
141 FM10K_TEST_MAX = FM10K_TEST_LEN
142};
143
144enum {
145 FM10K_PRV_FLAG_LEN,
146};
147
148static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
149};
150
151static void fm10k_add_stat_strings(u8 **p, const char *prefix,
152 const struct fm10k_stats stats[],
153 const unsigned int size)
154{
155 unsigned int i;
156
157 for (i = 0; i < size; i++) {
158 snprintf(*p, ETH_GSTRING_LEN, "%s%s",
159 prefix, stats[i].stat_string);
160 *p += ETH_GSTRING_LEN;
161 }
162}
163
164static void fm10k_get_stat_strings(struct net_device *dev, u8 *data)
165{
166 struct fm10k_intfc *interface = netdev_priv(dev);
167 unsigned int i;
168
169 fm10k_add_stat_strings(&data, "", fm10k_gstrings_net_stats,
170 FM10K_NETDEV_STATS_LEN);
171
172 fm10k_add_stat_strings(&data, "", fm10k_gstrings_global_stats,
173 FM10K_GLOBAL_STATS_LEN);
174
175 fm10k_add_stat_strings(&data, "", fm10k_gstrings_mbx_stats,
176 FM10K_MBX_STATS_LEN);
177
178 if (interface->hw.mac.type != fm10k_mac_vf)
179 fm10k_add_stat_strings(&data, "", fm10k_gstrings_pf_stats,
180 FM10K_PF_STATS_LEN);
181
182 for (i = 0; i < interface->hw.mac.max_queues; i++) {
183 char prefix[ETH_GSTRING_LEN];
184
185 snprintf(prefix, ETH_GSTRING_LEN, "tx_queue_%u_", i);
186 fm10k_add_stat_strings(&data, prefix,
187 fm10k_gstrings_queue_stats,
188 FM10K_QUEUE_STATS_LEN);
189
190 snprintf(prefix, ETH_GSTRING_LEN, "rx_queue_%u_", i);
191 fm10k_add_stat_strings(&data, prefix,
192 fm10k_gstrings_queue_stats,
193 FM10K_QUEUE_STATS_LEN);
194 }
195}
196
197static void fm10k_get_strings(struct net_device *dev,
198 u32 stringset, u8 *data)
199{
200 switch (stringset) {
201 case ETH_SS_TEST:
202 memcpy(data, fm10k_gstrings_test,
203 FM10K_TEST_LEN * ETH_GSTRING_LEN);
204 break;
205 case ETH_SS_STATS:
206 fm10k_get_stat_strings(dev, data);
207 break;
208 case ETH_SS_PRIV_FLAGS:
209 memcpy(data, fm10k_prv_flags,
210 FM10K_PRV_FLAG_LEN * ETH_GSTRING_LEN);
211 break;
212 }
213}
214
215static int fm10k_get_sset_count(struct net_device *dev, int sset)
216{
217 struct fm10k_intfc *interface = netdev_priv(dev);
218 struct fm10k_hw *hw = &interface->hw;
219 int stats_len = FM10K_STATIC_STATS_LEN;
220
221 switch (sset) {
222 case ETH_SS_TEST:
223 return FM10K_TEST_LEN;
224 case ETH_SS_STATS:
225 stats_len += hw->mac.max_queues * 2 * FM10K_QUEUE_STATS_LEN;
226
227 if (hw->mac.type != fm10k_mac_vf)
228 stats_len += FM10K_PF_STATS_LEN;
229
230 return stats_len;
231 case ETH_SS_PRIV_FLAGS:
232 return FM10K_PRV_FLAG_LEN;
233 default:
234 return -EOPNOTSUPP;
235 }
236}
237
238static void fm10k_add_ethtool_stats(u64 **data, void *pointer,
239 const struct fm10k_stats stats[],
240 const unsigned int size)
241{
242 unsigned int i;
243 char *p;
244
245 if (!pointer) {
246
247 for (i = 0; i < size; i++)
248 *((*data)++) = 0;
249 return;
250 }
251
252 for (i = 0; i < size; i++) {
253 p = (char *)pointer + stats[i].stat_offset;
254
255 switch (stats[i].sizeof_stat) {
256 case sizeof(u64):
257 *((*data)++) = *(u64 *)p;
258 break;
259 case sizeof(u32):
260 *((*data)++) = *(u32 *)p;
261 break;
262 case sizeof(u16):
263 *((*data)++) = *(u16 *)p;
264 break;
265 case sizeof(u8):
266 *((*data)++) = *(u8 *)p;
267 break;
268 default:
269 *((*data)++) = 0;
270 }
271 }
272}
273
274static void fm10k_get_ethtool_stats(struct net_device *netdev,
275 struct ethtool_stats __always_unused *stats,
276 u64 *data)
277{
278 struct fm10k_intfc *interface = netdev_priv(netdev);
279 struct net_device_stats *net_stats = &netdev->stats;
280 int i;
281
282 fm10k_update_stats(interface);
283
284 fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats,
285 FM10K_NETDEV_STATS_LEN);
286
287 fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats,
288 FM10K_GLOBAL_STATS_LEN);
289
290 fm10k_add_ethtool_stats(&data, &interface->hw.mbx,
291 fm10k_gstrings_mbx_stats,
292 FM10K_MBX_STATS_LEN);
293
294 if (interface->hw.mac.type != fm10k_mac_vf) {
295 fm10k_add_ethtool_stats(&data, interface,
296 fm10k_gstrings_pf_stats,
297 FM10K_PF_STATS_LEN);
298 }
299
300 for (i = 0; i < interface->hw.mac.max_queues; i++) {
301 struct fm10k_ring *ring;
302
303 ring = interface->tx_ring[i];
304 fm10k_add_ethtool_stats(&data, ring,
305 fm10k_gstrings_queue_stats,
306 FM10K_QUEUE_STATS_LEN);
307
308 ring = interface->rx_ring[i];
309 fm10k_add_ethtool_stats(&data, ring,
310 fm10k_gstrings_queue_stats,
311 FM10K_QUEUE_STATS_LEN);
312 }
313}
314
315
316#define FM10K_REGS_LEN_Q 29
317
318static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
319{
320 int idx = 0;
321
322 buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
323 buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
324 buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
325 buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
326 buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
327 buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
328 buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
329 buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
330 buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
331 buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
332 buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
333 buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
334 buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
335 buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
336 buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
337 buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
338 buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
339 buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
340 buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
341 buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
342 buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
343 buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
344 buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
345 buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
346 buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
347 buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
348 buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
349 buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
350 buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
351
352 BUG_ON(idx != FM10K_REGS_LEN_Q);
353}
354
355
356#define FM10K_REGS_LEN_VSI 43
357
358static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
359{
360 int idx = 0, j;
361
362 buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
363 for (j = 0; j < 10; j++)
364 buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
365 for (j = 0; j < 32; j++)
366 buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
367
368 BUG_ON(idx != FM10K_REGS_LEN_VSI);
369}
370
371static void fm10k_get_regs(struct net_device *netdev,
372 struct ethtool_regs *regs, void *p)
373{
374 struct fm10k_intfc *interface = netdev_priv(netdev);
375 struct fm10k_hw *hw = &interface->hw;
376 u32 *buff = p;
377 u16 i;
378
379 regs->version = BIT(24) | (hw->revision_id << 16) | hw->device_id;
380
381 switch (hw->mac.type) {
382 case fm10k_mac_pf:
383
384 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
385 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
386 *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
387 *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
388
389 for (i = 0; i < 8; i++) {
390 *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
391 *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
392 }
393
394 for (i = 0; i < 65; i++) {
395 fm10k_get_reg_vsi(hw, buff, i);
396 buff += FM10K_REGS_LEN_VSI;
397 }
398
399 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
400 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
401
402 for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
403 fm10k_get_reg_q(hw, buff, i);
404 buff += FM10K_REGS_LEN_Q;
405 }
406
407 *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
408
409 for (i = 0; i < 8; i++)
410 *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
411
412
413 for (i = 0; i < 130; i++)
414 *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
415
416 break;
417 case fm10k_mac_vf:
418
419 *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
420 *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
421 *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
422
423
424 for (i = 0; i < 8; i++)
425 *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
426
427 fm10k_get_reg_vsi(hw, buff, 0);
428 buff += FM10K_REGS_LEN_VSI;
429
430 for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
431 if (i < hw->mac.max_queues)
432 fm10k_get_reg_q(hw, buff, i);
433 else
434 memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
435 buff += FM10K_REGS_LEN_Q;
436 }
437
438 break;
439 default:
440 return;
441 }
442}
443
444
445#define FM10K_REGS_LEN_PF \
446(162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
447#define FM10K_REGS_LEN_VF \
448(11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
449
450static int fm10k_get_regs_len(struct net_device *netdev)
451{
452 struct fm10k_intfc *interface = netdev_priv(netdev);
453 struct fm10k_hw *hw = &interface->hw;
454
455 switch (hw->mac.type) {
456 case fm10k_mac_pf:
457 return FM10K_REGS_LEN_PF * sizeof(u32);
458 case fm10k_mac_vf:
459 return FM10K_REGS_LEN_VF * sizeof(u32);
460 default:
461 return 0;
462 }
463}
464
465static void fm10k_get_drvinfo(struct net_device *dev,
466 struct ethtool_drvinfo *info)
467{
468 struct fm10k_intfc *interface = netdev_priv(dev);
469
470 strncpy(info->driver, fm10k_driver_name,
471 sizeof(info->driver) - 1);
472 strncpy(info->version, fm10k_driver_version,
473 sizeof(info->version) - 1);
474 strncpy(info->bus_info, pci_name(interface->pdev),
475 sizeof(info->bus_info) - 1);
476}
477
478static void fm10k_get_pauseparam(struct net_device *dev,
479 struct ethtool_pauseparam *pause)
480{
481 struct fm10k_intfc *interface = netdev_priv(dev);
482
483
484 pause->autoneg = 0;
485 pause->tx_pause = 1;
486
487 pause->rx_pause = interface->rx_pause ? 1 : 0;
488}
489
490static int fm10k_set_pauseparam(struct net_device *dev,
491 struct ethtool_pauseparam *pause)
492{
493 struct fm10k_intfc *interface = netdev_priv(dev);
494 struct fm10k_hw *hw = &interface->hw;
495
496 if (pause->autoneg || !pause->tx_pause)
497 return -EINVAL;
498
499
500 if (hw->mac.type == fm10k_mac_pf)
501 interface->rx_pause = pause->rx_pause ? ~0 : 0;
502 else if (pause->rx_pause)
503 return -EINVAL;
504
505 if (netif_running(dev))
506 fm10k_update_rx_drop_en(interface);
507
508 return 0;
509}
510
511static u32 fm10k_get_msglevel(struct net_device *netdev)
512{
513 struct fm10k_intfc *interface = netdev_priv(netdev);
514
515 return interface->msg_enable;
516}
517
518static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
519{
520 struct fm10k_intfc *interface = netdev_priv(netdev);
521
522 interface->msg_enable = data;
523}
524
525static void fm10k_get_ringparam(struct net_device *netdev,
526 struct ethtool_ringparam *ring)
527{
528 struct fm10k_intfc *interface = netdev_priv(netdev);
529
530 ring->rx_max_pending = FM10K_MAX_RXD;
531 ring->tx_max_pending = FM10K_MAX_TXD;
532 ring->rx_mini_max_pending = 0;
533 ring->rx_jumbo_max_pending = 0;
534 ring->rx_pending = interface->rx_ring_count;
535 ring->tx_pending = interface->tx_ring_count;
536 ring->rx_mini_pending = 0;
537 ring->rx_jumbo_pending = 0;
538}
539
540static int fm10k_set_ringparam(struct net_device *netdev,
541 struct ethtool_ringparam *ring)
542{
543 struct fm10k_intfc *interface = netdev_priv(netdev);
544 struct fm10k_ring *temp_ring;
545 int i, err = 0;
546 u32 new_rx_count, new_tx_count;
547
548 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
549 return -EINVAL;
550
551 new_tx_count = clamp_t(u32, ring->tx_pending,
552 FM10K_MIN_TXD, FM10K_MAX_TXD);
553 new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE);
554
555 new_rx_count = clamp_t(u32, ring->rx_pending,
556 FM10K_MIN_RXD, FM10K_MAX_RXD);
557 new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE);
558
559 if ((new_tx_count == interface->tx_ring_count) &&
560 (new_rx_count == interface->rx_ring_count)) {
561
562 return 0;
563 }
564
565 while (test_and_set_bit(__FM10K_RESETTING, &interface->state))
566 usleep_range(1000, 2000);
567
568 if (!netif_running(interface->netdev)) {
569 for (i = 0; i < interface->num_tx_queues; i++)
570 interface->tx_ring[i]->count = new_tx_count;
571 for (i = 0; i < interface->num_rx_queues; i++)
572 interface->rx_ring[i]->count = new_rx_count;
573 interface->tx_ring_count = new_tx_count;
574 interface->rx_ring_count = new_rx_count;
575 goto clear_reset;
576 }
577
578
579 i = max_t(int, interface->num_tx_queues, interface->num_rx_queues);
580 temp_ring = vmalloc(i * sizeof(struct fm10k_ring));
581
582 if (!temp_ring) {
583 err = -ENOMEM;
584 goto clear_reset;
585 }
586
587 fm10k_down(interface);
588
589
590
591
592
593
594 if (new_tx_count != interface->tx_ring_count) {
595 for (i = 0; i < interface->num_tx_queues; i++) {
596 memcpy(&temp_ring[i], interface->tx_ring[i],
597 sizeof(struct fm10k_ring));
598
599 temp_ring[i].count = new_tx_count;
600 err = fm10k_setup_tx_resources(&temp_ring[i]);
601 if (err) {
602 while (i) {
603 i--;
604 fm10k_free_tx_resources(&temp_ring[i]);
605 }
606 goto err_setup;
607 }
608 }
609
610 for (i = 0; i < interface->num_tx_queues; i++) {
611 fm10k_free_tx_resources(interface->tx_ring[i]);
612
613 memcpy(interface->tx_ring[i], &temp_ring[i],
614 sizeof(struct fm10k_ring));
615 }
616
617 interface->tx_ring_count = new_tx_count;
618 }
619
620
621 if (new_rx_count != interface->rx_ring_count) {
622 for (i = 0; i < interface->num_rx_queues; i++) {
623 memcpy(&temp_ring[i], interface->rx_ring[i],
624 sizeof(struct fm10k_ring));
625
626 temp_ring[i].count = new_rx_count;
627 err = fm10k_setup_rx_resources(&temp_ring[i]);
628 if (err) {
629 while (i) {
630 i--;
631 fm10k_free_rx_resources(&temp_ring[i]);
632 }
633 goto err_setup;
634 }
635 }
636
637 for (i = 0; i < interface->num_rx_queues; i++) {
638 fm10k_free_rx_resources(interface->rx_ring[i]);
639
640 memcpy(interface->rx_ring[i], &temp_ring[i],
641 sizeof(struct fm10k_ring));
642 }
643
644 interface->rx_ring_count = new_rx_count;
645 }
646
647err_setup:
648 fm10k_up(interface);
649 vfree(temp_ring);
650clear_reset:
651 clear_bit(__FM10K_RESETTING, &interface->state);
652 return err;
653}
654
655static int fm10k_get_coalesce(struct net_device *dev,
656 struct ethtool_coalesce *ec)
657{
658 struct fm10k_intfc *interface = netdev_priv(dev);
659
660 ec->use_adaptive_tx_coalesce = ITR_IS_ADAPTIVE(interface->tx_itr);
661 ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
662
663 ec->use_adaptive_rx_coalesce = ITR_IS_ADAPTIVE(interface->rx_itr);
664 ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE;
665
666 return 0;
667}
668
669static int fm10k_set_coalesce(struct net_device *dev,
670 struct ethtool_coalesce *ec)
671{
672 struct fm10k_intfc *interface = netdev_priv(dev);
673 struct fm10k_q_vector *qv;
674 u16 tx_itr, rx_itr;
675 int i;
676
677
678 if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
679 (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
680 return -EINVAL;
681
682
683 tx_itr = ec->tx_coalesce_usecs;
684 rx_itr = ec->rx_coalesce_usecs;
685
686
687 if (ec->use_adaptive_tx_coalesce)
688 tx_itr = FM10K_ITR_ADAPTIVE | FM10K_TX_ITR_DEFAULT;
689
690 if (ec->use_adaptive_rx_coalesce)
691 rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT;
692
693
694 interface->tx_itr = tx_itr;
695 interface->rx_itr = rx_itr;
696
697
698 for (i = 0; i < interface->num_q_vectors; i++) {
699 qv = interface->q_vector[i];
700 qv->tx.itr = tx_itr;
701 qv->rx.itr = rx_itr;
702 }
703
704 return 0;
705}
706
707static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
708 struct ethtool_rxnfc *cmd)
709{
710 cmd->data = 0;
711
712
713 switch (cmd->flow_type) {
714 case TCP_V4_FLOW:
715 case TCP_V6_FLOW:
716 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
717
718 case UDP_V4_FLOW:
719 if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
720 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
721
722 case SCTP_V4_FLOW:
723 case SCTP_V6_FLOW:
724 case AH_ESP_V4_FLOW:
725 case AH_ESP_V6_FLOW:
726 case AH_V4_FLOW:
727 case AH_V6_FLOW:
728 case ESP_V4_FLOW:
729 case ESP_V6_FLOW:
730 case IPV4_FLOW:
731 case IPV6_FLOW:
732 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
733 break;
734 case UDP_V6_FLOW:
735 if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
736 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
737 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
738 break;
739 default:
740 return -EINVAL;
741 }
742
743 return 0;
744}
745
746static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
747 u32 __always_unused *rule_locs)
748{
749 struct fm10k_intfc *interface = netdev_priv(dev);
750 int ret = -EOPNOTSUPP;
751
752 switch (cmd->cmd) {
753 case ETHTOOL_GRXRINGS:
754 cmd->data = interface->num_rx_queues;
755 ret = 0;
756 break;
757 case ETHTOOL_GRXFH:
758 ret = fm10k_get_rss_hash_opts(interface, cmd);
759 break;
760 default:
761 break;
762 }
763
764 return ret;
765}
766
767#define UDP_RSS_FLAGS (FM10K_FLAG_RSS_FIELD_IPV4_UDP | \
768 FM10K_FLAG_RSS_FIELD_IPV6_UDP)
769static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
770 struct ethtool_rxnfc *nfc)
771{
772 u32 flags = interface->flags;
773
774
775
776
777 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
778 RXH_L4_B_0_1 | RXH_L4_B_2_3))
779 return -EINVAL;
780
781 switch (nfc->flow_type) {
782 case TCP_V4_FLOW:
783 case TCP_V6_FLOW:
784 if (!(nfc->data & RXH_IP_SRC) ||
785 !(nfc->data & RXH_IP_DST) ||
786 !(nfc->data & RXH_L4_B_0_1) ||
787 !(nfc->data & RXH_L4_B_2_3))
788 return -EINVAL;
789 break;
790 case UDP_V4_FLOW:
791 if (!(nfc->data & RXH_IP_SRC) ||
792 !(nfc->data & RXH_IP_DST))
793 return -EINVAL;
794 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
795 case 0:
796 flags &= ~FM10K_FLAG_RSS_FIELD_IPV4_UDP;
797 break;
798 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
799 flags |= FM10K_FLAG_RSS_FIELD_IPV4_UDP;
800 break;
801 default:
802 return -EINVAL;
803 }
804 break;
805 case UDP_V6_FLOW:
806 if (!(nfc->data & RXH_IP_SRC) ||
807 !(nfc->data & RXH_IP_DST))
808 return -EINVAL;
809 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
810 case 0:
811 flags &= ~FM10K_FLAG_RSS_FIELD_IPV6_UDP;
812 break;
813 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
814 flags |= FM10K_FLAG_RSS_FIELD_IPV6_UDP;
815 break;
816 default:
817 return -EINVAL;
818 }
819 break;
820 case AH_ESP_V4_FLOW:
821 case AH_V4_FLOW:
822 case ESP_V4_FLOW:
823 case SCTP_V4_FLOW:
824 case AH_ESP_V6_FLOW:
825 case AH_V6_FLOW:
826 case ESP_V6_FLOW:
827 case SCTP_V6_FLOW:
828 if (!(nfc->data & RXH_IP_SRC) ||
829 !(nfc->data & RXH_IP_DST) ||
830 (nfc->data & RXH_L4_B_0_1) ||
831 (nfc->data & RXH_L4_B_2_3))
832 return -EINVAL;
833 break;
834 default:
835 return -EINVAL;
836 }
837
838
839 if (flags != interface->flags) {
840 struct fm10k_hw *hw = &interface->hw;
841 u32 mrqc;
842
843 if ((flags & UDP_RSS_FLAGS) &&
844 !(interface->flags & UDP_RSS_FLAGS))
845 netif_warn(interface, drv, interface->netdev,
846 "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
847
848 interface->flags = flags;
849
850
851 mrqc = FM10K_MRQC_IPV4 |
852 FM10K_MRQC_TCP_IPV4 |
853 FM10K_MRQC_IPV6 |
854 FM10K_MRQC_TCP_IPV6;
855
856 if (flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
857 mrqc |= FM10K_MRQC_UDP_IPV4;
858 if (flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
859 mrqc |= FM10K_MRQC_UDP_IPV6;
860
861 fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
862 }
863
864 return 0;
865}
866
867static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
868{
869 struct fm10k_intfc *interface = netdev_priv(dev);
870 int ret = -EOPNOTSUPP;
871
872 switch (cmd->cmd) {
873 case ETHTOOL_SRXFH:
874 ret = fm10k_set_rss_hash_opt(interface, cmd);
875 break;
876 default:
877 break;
878 }
879
880 return ret;
881}
882
883static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
884{
885 struct fm10k_hw *hw = &interface->hw;
886 struct fm10k_mbx_info *mbx = &hw->mbx;
887 u32 attr_flag, test_msg[6];
888 unsigned long timeout;
889 int err = -EINVAL;
890
891
892 if (hw->mac.type != fm10k_mac_vf)
893 return 0;
894
895
896 for (attr_flag = BIT(FM10K_TEST_MSG_UNSET);
897 attr_flag < BIT(2 * FM10K_TEST_MSG_NESTED);
898 attr_flag += attr_flag) {
899
900 fm10k_tlv_msg_test_create(test_msg, attr_flag);
901
902 fm10k_mbx_lock(interface);
903 mbx->test_result = FM10K_NOT_IMPLEMENTED;
904 err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
905 fm10k_mbx_unlock(interface);
906
907
908 timeout = jiffies + HZ;
909 do {
910 if (err < 0)
911 goto err_out;
912
913 usleep_range(500, 1000);
914
915 fm10k_mbx_lock(interface);
916 mbx->ops.process(hw, mbx);
917 fm10k_mbx_unlock(interface);
918
919 err = mbx->test_result;
920 if (!err)
921 break;
922 } while (time_is_after_jiffies(timeout));
923
924
925 if (err)
926 goto err_out;
927 }
928
929err_out:
930 *data = err < 0 ? (attr_flag) : (err > 0);
931 return err;
932}
933
934static void fm10k_self_test(struct net_device *dev,
935 struct ethtool_test *eth_test, u64 *data)
936{
937 struct fm10k_intfc *interface = netdev_priv(dev);
938 struct fm10k_hw *hw = &interface->hw;
939
940 memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
941
942 if (FM10K_REMOVED(hw)) {
943 netif_err(interface, drv, dev,
944 "Interface removed - test blocked\n");
945 eth_test->flags |= ETH_TEST_FL_FAILED;
946 return;
947 }
948
949 if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
950 eth_test->flags |= ETH_TEST_FL_FAILED;
951}
952
953static u32 fm10k_get_priv_flags(struct net_device *netdev)
954{
955 return 0;
956}
957
958static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
959{
960 if (priv_flags >= BIT(FM10K_PRV_FLAG_LEN))
961 return -EINVAL;
962
963 return 0;
964}
965
966static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
967{
968 return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
969}
970
971void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir)
972{
973 u16 rss_i = interface->ring_feature[RING_F_RSS].indices;
974 struct fm10k_hw *hw = &interface->hw;
975 u32 table[4];
976 int i, j;
977
978
979 for (i = 0; i < FM10K_RETA_SIZE; i++) {
980 u32 reta, n;
981
982
983 for (j = 0; j < 4; j++) {
984 if (indir)
985 n = indir[4 * i + j];
986 else
987 n = ethtool_rxfh_indir_default(4 * i + j,
988 rss_i);
989
990 table[j] = n;
991 }
992
993 reta = table[0] |
994 (table[1] << 8) |
995 (table[2] << 16) |
996 (table[3] << 24);
997
998 if (interface->reta[i] == reta)
999 continue;
1000
1001 interface->reta[i] = reta;
1002 fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
1003 }
1004}
1005
1006static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
1007{
1008 struct fm10k_intfc *interface = netdev_priv(netdev);
1009 int i;
1010
1011 if (!indir)
1012 return 0;
1013
1014 for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
1015 u32 reta = interface->reta[i];
1016
1017 indir[0] = (reta << 24) >> 24;
1018 indir[1] = (reta << 16) >> 24;
1019 indir[2] = (reta << 8) >> 24;
1020 indir[3] = (reta) >> 24;
1021 }
1022
1023 return 0;
1024}
1025
1026static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
1027{
1028 struct fm10k_intfc *interface = netdev_priv(netdev);
1029 int i;
1030 u16 rss_i;
1031
1032 if (!indir)
1033 return 0;
1034
1035
1036 rss_i = interface->ring_feature[RING_F_RSS].indices;
1037 for (i = fm10k_get_reta_size(netdev); i--;) {
1038 if (indir[i] < rss_i)
1039 continue;
1040 return -EINVAL;
1041 }
1042
1043 fm10k_write_reta(interface, indir);
1044
1045 return 0;
1046}
1047
1048static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev)
1049{
1050 return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
1051}
1052
1053static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key,
1054 u8 *hfunc)
1055{
1056 struct fm10k_intfc *interface = netdev_priv(netdev);
1057 int i, err;
1058
1059 if (hfunc)
1060 *hfunc = ETH_RSS_HASH_TOP;
1061
1062 err = fm10k_get_reta(netdev, indir);
1063 if (err || !key)
1064 return err;
1065
1066 for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
1067 *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
1068
1069 return 0;
1070}
1071
1072static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir,
1073 const u8 *key, const u8 hfunc)
1074{
1075 struct fm10k_intfc *interface = netdev_priv(netdev);
1076 struct fm10k_hw *hw = &interface->hw;
1077 int i, err;
1078
1079
1080 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1081 return -EOPNOTSUPP;
1082
1083 err = fm10k_set_reta(netdev, indir);
1084 if (err || !key)
1085 return err;
1086
1087 for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) {
1088 u32 rssrk = le32_to_cpu(*(__le32 *)key);
1089
1090 if (interface->rssrk[i] == rssrk)
1091 continue;
1092
1093 interface->rssrk[i] = rssrk;
1094 fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
1095 }
1096
1097 return 0;
1098}
1099
1100static unsigned int fm10k_max_channels(struct net_device *dev)
1101{
1102 struct fm10k_intfc *interface = netdev_priv(dev);
1103 unsigned int max_combined = interface->hw.mac.max_queues;
1104 u8 tcs = netdev_get_num_tc(dev);
1105
1106
1107 if (tcs > 1)
1108 max_combined = BIT((fls(max_combined / tcs) - 1));
1109
1110 return max_combined;
1111}
1112
1113static void fm10k_get_channels(struct net_device *dev,
1114 struct ethtool_channels *ch)
1115{
1116 struct fm10k_intfc *interface = netdev_priv(dev);
1117 struct fm10k_hw *hw = &interface->hw;
1118
1119
1120 ch->max_combined = fm10k_max_channels(dev);
1121
1122
1123 ch->max_other = NON_Q_VECTORS(hw);
1124 ch->other_count = ch->max_other;
1125
1126
1127 ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
1128}
1129
1130static int fm10k_set_channels(struct net_device *dev,
1131 struct ethtool_channels *ch)
1132{
1133 struct fm10k_intfc *interface = netdev_priv(dev);
1134 unsigned int count = ch->combined_count;
1135 struct fm10k_hw *hw = &interface->hw;
1136
1137
1138 if (!count || ch->rx_count || ch->tx_count)
1139 return -EINVAL;
1140
1141
1142 if (ch->other_count != NON_Q_VECTORS(hw))
1143 return -EINVAL;
1144
1145
1146 if (count > fm10k_max_channels(dev))
1147 return -EINVAL;
1148
1149 interface->ring_feature[RING_F_RSS].limit = count;
1150
1151
1152 return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
1153}
1154
1155static const struct ethtool_ops fm10k_ethtool_ops = {
1156 .get_strings = fm10k_get_strings,
1157 .get_sset_count = fm10k_get_sset_count,
1158 .get_ethtool_stats = fm10k_get_ethtool_stats,
1159 .get_drvinfo = fm10k_get_drvinfo,
1160 .get_link = ethtool_op_get_link,
1161 .get_pauseparam = fm10k_get_pauseparam,
1162 .set_pauseparam = fm10k_set_pauseparam,
1163 .get_msglevel = fm10k_get_msglevel,
1164 .set_msglevel = fm10k_set_msglevel,
1165 .get_ringparam = fm10k_get_ringparam,
1166 .set_ringparam = fm10k_set_ringparam,
1167 .get_coalesce = fm10k_get_coalesce,
1168 .set_coalesce = fm10k_set_coalesce,
1169 .get_rxnfc = fm10k_get_rxnfc,
1170 .set_rxnfc = fm10k_set_rxnfc,
1171 .get_regs = fm10k_get_regs,
1172 .get_regs_len = fm10k_get_regs_len,
1173 .self_test = fm10k_self_test,
1174 .get_priv_flags = fm10k_get_priv_flags,
1175 .set_priv_flags = fm10k_set_priv_flags,
1176 .get_rxfh_indir_size = fm10k_get_reta_size,
1177 .get_rxfh_key_size = fm10k_get_rssrk_size,
1178 .get_rxfh = fm10k_get_rssh,
1179 .set_rxfh = fm10k_set_rssh,
1180 .get_channels = fm10k_get_channels,
1181 .set_channels = fm10k_set_channels,
1182 .get_ts_info = ethtool_op_get_ts_info,
1183};
1184
1185void fm10k_set_ethtool_ops(struct net_device *dev)
1186{
1187 dev->ethtool_ops = &fm10k_ethtool_ops;
1188}
1189
