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[deliverable/linux.git] / drivers / net / ethernet / intel / fm10k / fm10k_ethtool.c
1 /* Intel Ethernet Switch Host Interface Driver
2 * Copyright(c) 2013 - 2014 Intel Corporation.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * The full GNU General Public License is included in this distribution in
14 * the file called "COPYING".
15 *
16 * Contact Information:
17 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
18 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
19 */
20
21 #include <linux/vmalloc.h>
22
23 #include "fm10k.h"
24
25 struct 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
37 static 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 /* detailed Rx errors */
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
60 static const struct fm10k_stats fm10k_gstrings_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 FM10K_STAT("rx_errors", rx_errors),
67
68 FM10K_STAT("tx_packets_nic", tx_packets_nic),
69 FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
70 FM10K_STAT("rx_packets_nic", rx_packets_nic),
71 FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
72 FM10K_STAT("rx_drops_nic", rx_drops_nic),
73 FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
74 FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
75
76 FM10K_STAT("timeout", stats.timeout.count),
77 FM10K_STAT("ur", stats.ur.count),
78 FM10K_STAT("ca", stats.ca.count),
79 FM10K_STAT("um", stats.um.count),
80 FM10K_STAT("xec", stats.xec.count),
81 FM10K_STAT("vlan_drop", stats.vlan_drop.count),
82 FM10K_STAT("loopback_drop", stats.loopback_drop.count),
83 FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
84
85 FM10K_STAT("swapi_status", hw.swapi.status),
86 FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
87 FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
88
89 FM10K_STAT("mbx_tx_busy", hw.mbx.tx_busy),
90 FM10K_STAT("mbx_tx_dropped", hw.mbx.tx_dropped),
91 FM10K_STAT("mbx_tx_messages", hw.mbx.tx_messages),
92 FM10K_STAT("mbx_tx_dwords", hw.mbx.tx_dwords),
93 FM10K_STAT("mbx_rx_messages", hw.mbx.rx_messages),
94 FM10K_STAT("mbx_rx_dwords", hw.mbx.rx_dwords),
95 FM10K_STAT("mbx_rx_parse_err", hw.mbx.rx_parse_err),
96
97 FM10K_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
98 };
99
100 #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_stats)
101
102 #define FM10K_QUEUE_STATS_LEN \
103 (MAX_QUEUES * 2 * (sizeof(struct fm10k_queue_stats) / sizeof(u64)))
104
105 #define FM10K_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
106 FM10K_NETDEV_STATS_LEN + \
107 FM10K_QUEUE_STATS_LEN)
108
109 static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
110 "Mailbox test (on/offline)"
111 };
112
113 #define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
114
115 enum fm10k_self_test_types {
116 FM10K_TEST_MBX,
117 FM10K_TEST_MAX = FM10K_TEST_LEN
118 };
119
120 static void fm10k_get_strings(struct net_device *dev, u32 stringset,
121 u8 *data)
122 {
123 char *p = (char *)data;
124 int i;
125
126 switch (stringset) {
127 case ETH_SS_TEST:
128 memcpy(data, *fm10k_gstrings_test,
129 FM10K_TEST_LEN * ETH_GSTRING_LEN);
130 break;
131 case ETH_SS_STATS:
132 for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
133 memcpy(p, fm10k_gstrings_net_stats[i].stat_string,
134 ETH_GSTRING_LEN);
135 p += ETH_GSTRING_LEN;
136 }
137 for (i = 0; i < FM10K_GLOBAL_STATS_LEN; i++) {
138 memcpy(p, fm10k_gstrings_stats[i].stat_string,
139 ETH_GSTRING_LEN);
140 p += ETH_GSTRING_LEN;
141 }
142
143 for (i = 0; i < MAX_QUEUES; i++) {
144 sprintf(p, "tx_queue_%u_packets", i);
145 p += ETH_GSTRING_LEN;
146 sprintf(p, "tx_queue_%u_bytes", i);
147 p += ETH_GSTRING_LEN;
148 sprintf(p, "rx_queue_%u_packets", i);
149 p += ETH_GSTRING_LEN;
150 sprintf(p, "rx_queue_%u_bytes", i);
151 p += ETH_GSTRING_LEN;
152 }
153 break;
154 }
155 }
156
157 static int fm10k_get_sset_count(struct net_device *dev, int sset)
158 {
159 switch (sset) {
160 case ETH_SS_TEST:
161 return FM10K_TEST_LEN;
162 case ETH_SS_STATS:
163 return FM10K_STATS_LEN;
164 default:
165 return -EOPNOTSUPP;
166 }
167 }
168
169 static void fm10k_get_ethtool_stats(struct net_device *netdev,
170 struct ethtool_stats *stats, u64 *data)
171 {
172 const int stat_count = sizeof(struct fm10k_queue_stats) / sizeof(u64);
173 struct fm10k_intfc *interface = netdev_priv(netdev);
174 struct net_device_stats *net_stats = &netdev->stats;
175 char *p;
176 int i, j;
177
178 fm10k_update_stats(interface);
179
180 for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
181 p = (char *)net_stats + fm10k_gstrings_net_stats[i].stat_offset;
182 *(data++) = (fm10k_gstrings_net_stats[i].sizeof_stat ==
183 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
184 }
185
186 for (i = 0; i < FM10K_GLOBAL_STATS_LEN; i++) {
187 p = (char *)interface + fm10k_gstrings_stats[i].stat_offset;
188 *(data++) = (fm10k_gstrings_stats[i].sizeof_stat ==
189 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
190 }
191
192 for (i = 0; i < MAX_QUEUES; i++) {
193 struct fm10k_ring *ring;
194 u64 *queue_stat;
195
196 ring = interface->tx_ring[i];
197 if (ring)
198 queue_stat = (u64 *)&ring->stats;
199 for (j = 0; j < stat_count; j++)
200 *(data++) = ring ? queue_stat[j] : 0;
201
202 ring = interface->rx_ring[i];
203 if (ring)
204 queue_stat = (u64 *)&ring->stats;
205 for (j = 0; j < stat_count; j++)
206 *(data++) = ring ? queue_stat[j] : 0;
207 }
208 }
209
210 /* If function below adds more registers this define needs to be updated */
211 #define FM10K_REGS_LEN_Q 29
212
213 static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
214 {
215 int idx = 0;
216
217 buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
218 buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
219 buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
220 buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
221 buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
222 buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
223 buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
224 buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
225 buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
226 buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
227 buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
228 buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
229 buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
230 buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
231 buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
232 buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
233 buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
234 buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
235 buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
236 buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
237 buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
238 buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
239 buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
240 buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
241 buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
242 buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
243 buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
244 buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
245 buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
246
247 BUG_ON(idx != FM10K_REGS_LEN_Q);
248 }
249
250 /* If function above adds more registers this define needs to be updated */
251 #define FM10K_REGS_LEN_VSI 43
252
253 static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
254 {
255 int idx = 0, j;
256
257 buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
258 for (j = 0; j < 10; j++)
259 buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
260 for (j = 0; j < 32; j++)
261 buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
262
263 BUG_ON(idx != FM10K_REGS_LEN_VSI);
264 }
265
266 static void fm10k_get_regs(struct net_device *netdev,
267 struct ethtool_regs *regs, void *p)
268 {
269 struct fm10k_intfc *interface = netdev_priv(netdev);
270 struct fm10k_hw *hw = &interface->hw;
271 u32 *buff = p;
272 u16 i;
273
274 regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
275
276 switch (hw->mac.type) {
277 case fm10k_mac_pf:
278 /* General PF Registers */
279 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
280 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
281 *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
282 *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
283
284 for (i = 0; i < 8; i++) {
285 *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
286 *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
287 }
288
289 for (i = 0; i < 65; i++) {
290 fm10k_get_reg_vsi(hw, buff, i);
291 buff += FM10K_REGS_LEN_VSI;
292 }
293
294 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
295 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
296
297 for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
298 fm10k_get_reg_q(hw, buff, i);
299 buff += FM10K_REGS_LEN_Q;
300 }
301
302 *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
303
304 for (i = 0; i < 8; i++)
305 *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
306
307 /* Interrupt Throttling Registers */
308 for (i = 0; i < 130; i++)
309 *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
310
311 break;
312 case fm10k_mac_vf:
313 /* General VF registers */
314 *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
315 *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
316 *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
317
318 /* Interrupt Throttling Registers */
319 for (i = 0; i < 8; i++)
320 *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
321
322 fm10k_get_reg_vsi(hw, buff, 0);
323 buff += FM10K_REGS_LEN_VSI;
324
325 for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
326 if (i < hw->mac.max_queues)
327 fm10k_get_reg_q(hw, buff, i);
328 else
329 memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
330 buff += FM10K_REGS_LEN_Q;
331 }
332
333 break;
334 default:
335 return;
336 }
337 }
338
339 /* If function above adds more registers these define need to be updated */
340 #define FM10K_REGS_LEN_PF \
341 (162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
342 #define FM10K_REGS_LEN_VF \
343 (11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
344
345 static int fm10k_get_regs_len(struct net_device *netdev)
346 {
347 struct fm10k_intfc *interface = netdev_priv(netdev);
348 struct fm10k_hw *hw = &interface->hw;
349
350 switch (hw->mac.type) {
351 case fm10k_mac_pf:
352 return FM10K_REGS_LEN_PF * sizeof(u32);
353 case fm10k_mac_vf:
354 return FM10K_REGS_LEN_VF * sizeof(u32);
355 default:
356 return 0;
357 }
358 }
359
360 static void fm10k_get_drvinfo(struct net_device *dev,
361 struct ethtool_drvinfo *info)
362 {
363 struct fm10k_intfc *interface = netdev_priv(dev);
364
365 strncpy(info->driver, fm10k_driver_name,
366 sizeof(info->driver) - 1);
367 strncpy(info->version, fm10k_driver_version,
368 sizeof(info->version) - 1);
369 strncpy(info->bus_info, pci_name(interface->pdev),
370 sizeof(info->bus_info) - 1);
371
372 info->n_stats = FM10K_STATS_LEN;
373
374 info->regdump_len = fm10k_get_regs_len(dev);
375 }
376
377 static void fm10k_get_pauseparam(struct net_device *dev,
378 struct ethtool_pauseparam *pause)
379 {
380 struct fm10k_intfc *interface = netdev_priv(dev);
381
382 /* record fixed values for autoneg and tx pause */
383 pause->autoneg = 0;
384 pause->tx_pause = 1;
385
386 pause->rx_pause = interface->rx_pause ? 1 : 0;
387 }
388
389 static int fm10k_set_pauseparam(struct net_device *dev,
390 struct ethtool_pauseparam *pause)
391 {
392 struct fm10k_intfc *interface = netdev_priv(dev);
393 struct fm10k_hw *hw = &interface->hw;
394
395 if (pause->autoneg || !pause->tx_pause)
396 return -EINVAL;
397
398 /* we can only support pause on the PF to avoid head-of-line blocking */
399 if (hw->mac.type == fm10k_mac_pf)
400 interface->rx_pause = pause->rx_pause ? ~0 : 0;
401 else if (pause->rx_pause)
402 return -EINVAL;
403
404 if (netif_running(dev))
405 fm10k_update_rx_drop_en(interface);
406
407 return 0;
408 }
409
410 static u32 fm10k_get_msglevel(struct net_device *netdev)
411 {
412 struct fm10k_intfc *interface = netdev_priv(netdev);
413
414 return interface->msg_enable;
415 }
416
417 static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
418 {
419 struct fm10k_intfc *interface = netdev_priv(netdev);
420
421 interface->msg_enable = data;
422 }
423
424 static void fm10k_get_ringparam(struct net_device *netdev,
425 struct ethtool_ringparam *ring)
426 {
427 struct fm10k_intfc *interface = netdev_priv(netdev);
428
429 ring->rx_max_pending = FM10K_MAX_RXD;
430 ring->tx_max_pending = FM10K_MAX_TXD;
431 ring->rx_mini_max_pending = 0;
432 ring->rx_jumbo_max_pending = 0;
433 ring->rx_pending = interface->rx_ring_count;
434 ring->tx_pending = interface->tx_ring_count;
435 ring->rx_mini_pending = 0;
436 ring->rx_jumbo_pending = 0;
437 }
438
439 static int fm10k_set_ringparam(struct net_device *netdev,
440 struct ethtool_ringparam *ring)
441 {
442 struct fm10k_intfc *interface = netdev_priv(netdev);
443 struct fm10k_ring *temp_ring;
444 int i, err = 0;
445 u32 new_rx_count, new_tx_count;
446
447 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
448 return -EINVAL;
449
450 new_tx_count = clamp_t(u32, ring->tx_pending,
451 FM10K_MIN_TXD, FM10K_MAX_TXD);
452 new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE);
453
454 new_rx_count = clamp_t(u32, ring->rx_pending,
455 FM10K_MIN_RXD, FM10K_MAX_RXD);
456 new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE);
457
458 if ((new_tx_count == interface->tx_ring_count) &&
459 (new_rx_count == interface->rx_ring_count)) {
460 /* nothing to do */
461 return 0;
462 }
463
464 while (test_and_set_bit(__FM10K_RESETTING, &interface->state))
465 usleep_range(1000, 2000);
466
467 if (!netif_running(interface->netdev)) {
468 for (i = 0; i < interface->num_tx_queues; i++)
469 interface->tx_ring[i]->count = new_tx_count;
470 for (i = 0; i < interface->num_rx_queues; i++)
471 interface->rx_ring[i]->count = new_rx_count;
472 interface->tx_ring_count = new_tx_count;
473 interface->rx_ring_count = new_rx_count;
474 goto clear_reset;
475 }
476
477 /* allocate temporary buffer to store rings in */
478 i = max_t(int, interface->num_tx_queues, interface->num_rx_queues);
479 temp_ring = vmalloc(i * sizeof(struct fm10k_ring));
480
481 if (!temp_ring) {
482 err = -ENOMEM;
483 goto clear_reset;
484 }
485
486 fm10k_down(interface);
487
488 /* Setup new Tx resources and free the old Tx resources in that order.
489 * We can then assign the new resources to the rings via a memcpy.
490 * The advantage to this approach is that we are guaranteed to still
491 * have resources even in the case of an allocation failure.
492 */
493 if (new_tx_count != interface->tx_ring_count) {
494 for (i = 0; i < interface->num_tx_queues; i++) {
495 memcpy(&temp_ring[i], interface->tx_ring[i],
496 sizeof(struct fm10k_ring));
497
498 temp_ring[i].count = new_tx_count;
499 err = fm10k_setup_tx_resources(&temp_ring[i]);
500 if (err) {
501 while (i) {
502 i--;
503 fm10k_free_tx_resources(&temp_ring[i]);
504 }
505 goto err_setup;
506 }
507 }
508
509 for (i = 0; i < interface->num_tx_queues; i++) {
510 fm10k_free_tx_resources(interface->tx_ring[i]);
511
512 memcpy(interface->tx_ring[i], &temp_ring[i],
513 sizeof(struct fm10k_ring));
514 }
515
516 interface->tx_ring_count = new_tx_count;
517 }
518
519 /* Repeat the process for the Rx rings if needed */
520 if (new_rx_count != interface->rx_ring_count) {
521 for (i = 0; i < interface->num_rx_queues; i++) {
522 memcpy(&temp_ring[i], interface->rx_ring[i],
523 sizeof(struct fm10k_ring));
524
525 temp_ring[i].count = new_rx_count;
526 err = fm10k_setup_rx_resources(&temp_ring[i]);
527 if (err) {
528 while (i) {
529 i--;
530 fm10k_free_rx_resources(&temp_ring[i]);
531 }
532 goto err_setup;
533 }
534 }
535
536 for (i = 0; i < interface->num_rx_queues; i++) {
537 fm10k_free_rx_resources(interface->rx_ring[i]);
538
539 memcpy(interface->rx_ring[i], &temp_ring[i],
540 sizeof(struct fm10k_ring));
541 }
542
543 interface->rx_ring_count = new_rx_count;
544 }
545
546 err_setup:
547 fm10k_up(interface);
548 vfree(temp_ring);
549 clear_reset:
550 clear_bit(__FM10K_RESETTING, &interface->state);
551 return err;
552 }
553
554 static int fm10k_get_coalesce(struct net_device *dev,
555 struct ethtool_coalesce *ec)
556 {
557 struct fm10k_intfc *interface = netdev_priv(dev);
558
559 ec->use_adaptive_tx_coalesce =
560 !!(interface->tx_itr & FM10K_ITR_ADAPTIVE);
561 ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
562
563 ec->use_adaptive_rx_coalesce =
564 !!(interface->rx_itr & FM10K_ITR_ADAPTIVE);
565 ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE;
566
567 return 0;
568 }
569
570 static int fm10k_set_coalesce(struct net_device *dev,
571 struct ethtool_coalesce *ec)
572 {
573 struct fm10k_intfc *interface = netdev_priv(dev);
574 struct fm10k_q_vector *qv;
575 u16 tx_itr, rx_itr;
576 int i;
577
578 /* verify limits */
579 if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
580 (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
581 return -EINVAL;
582
583 /* record settings */
584 tx_itr = ec->tx_coalesce_usecs;
585 rx_itr = ec->rx_coalesce_usecs;
586
587 /* set initial values for adaptive ITR */
588 if (ec->use_adaptive_tx_coalesce)
589 tx_itr = FM10K_ITR_ADAPTIVE | FM10K_ITR_10K;
590
591 if (ec->use_adaptive_rx_coalesce)
592 rx_itr = FM10K_ITR_ADAPTIVE | FM10K_ITR_20K;
593
594 /* update interface */
595 interface->tx_itr = tx_itr;
596 interface->rx_itr = rx_itr;
597
598 /* update q_vectors */
599 for (i = 0; i < interface->num_q_vectors; i++) {
600 qv = interface->q_vector[i];
601 qv->tx.itr = tx_itr;
602 qv->rx.itr = rx_itr;
603 }
604
605 return 0;
606 }
607
608 static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
609 struct ethtool_rxnfc *cmd)
610 {
611 cmd->data = 0;
612
613 /* Report default options for RSS on fm10k */
614 switch (cmd->flow_type) {
615 case TCP_V4_FLOW:
616 case TCP_V6_FLOW:
617 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
618 /* fall through */
619 case UDP_V4_FLOW:
620 if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
621 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
622 /* fall through */
623 case SCTP_V4_FLOW:
624 case SCTP_V6_FLOW:
625 case AH_ESP_V4_FLOW:
626 case AH_ESP_V6_FLOW:
627 case AH_V4_FLOW:
628 case AH_V6_FLOW:
629 case ESP_V4_FLOW:
630 case ESP_V6_FLOW:
631 case IPV4_FLOW:
632 case IPV6_FLOW:
633 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
634 break;
635 case UDP_V6_FLOW:
636 if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
637 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
638 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
639 break;
640 default:
641 return -EINVAL;
642 }
643
644 return 0;
645 }
646
647 static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
648 u32 *rule_locs)
649 {
650 struct fm10k_intfc *interface = netdev_priv(dev);
651 int ret = -EOPNOTSUPP;
652
653 switch (cmd->cmd) {
654 case ETHTOOL_GRXRINGS:
655 cmd->data = interface->num_rx_queues;
656 ret = 0;
657 break;
658 case ETHTOOL_GRXFH:
659 ret = fm10k_get_rss_hash_opts(interface, cmd);
660 break;
661 default:
662 break;
663 }
664
665 return ret;
666 }
667
668 #define UDP_RSS_FLAGS (FM10K_FLAG_RSS_FIELD_IPV4_UDP | \
669 FM10K_FLAG_RSS_FIELD_IPV6_UDP)
670 static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
671 struct ethtool_rxnfc *nfc)
672 {
673 u32 flags = interface->flags;
674
675 /* RSS does not support anything other than hashing
676 * to queues on src and dst IPs and ports
677 */
678 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
679 RXH_L4_B_0_1 | RXH_L4_B_2_3))
680 return -EINVAL;
681
682 switch (nfc->flow_type) {
683 case TCP_V4_FLOW:
684 case TCP_V6_FLOW:
685 if (!(nfc->data & RXH_IP_SRC) ||
686 !(nfc->data & RXH_IP_DST) ||
687 !(nfc->data & RXH_L4_B_0_1) ||
688 !(nfc->data & RXH_L4_B_2_3))
689 return -EINVAL;
690 break;
691 case UDP_V4_FLOW:
692 if (!(nfc->data & RXH_IP_SRC) ||
693 !(nfc->data & RXH_IP_DST))
694 return -EINVAL;
695 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
696 case 0:
697 flags &= ~FM10K_FLAG_RSS_FIELD_IPV4_UDP;
698 break;
699 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
700 flags |= FM10K_FLAG_RSS_FIELD_IPV4_UDP;
701 break;
702 default:
703 return -EINVAL;
704 }
705 break;
706 case UDP_V6_FLOW:
707 if (!(nfc->data & RXH_IP_SRC) ||
708 !(nfc->data & RXH_IP_DST))
709 return -EINVAL;
710 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
711 case 0:
712 flags &= ~FM10K_FLAG_RSS_FIELD_IPV6_UDP;
713 break;
714 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
715 flags |= FM10K_FLAG_RSS_FIELD_IPV6_UDP;
716 break;
717 default:
718 return -EINVAL;
719 }
720 break;
721 case AH_ESP_V4_FLOW:
722 case AH_V4_FLOW:
723 case ESP_V4_FLOW:
724 case SCTP_V4_FLOW:
725 case AH_ESP_V6_FLOW:
726 case AH_V6_FLOW:
727 case ESP_V6_FLOW:
728 case SCTP_V6_FLOW:
729 if (!(nfc->data & RXH_IP_SRC) ||
730 !(nfc->data & RXH_IP_DST) ||
731 (nfc->data & RXH_L4_B_0_1) ||
732 (nfc->data & RXH_L4_B_2_3))
733 return -EINVAL;
734 break;
735 default:
736 return -EINVAL;
737 }
738
739 /* if we changed something we need to update flags */
740 if (flags != interface->flags) {
741 struct fm10k_hw *hw = &interface->hw;
742 u32 mrqc;
743
744 if ((flags & UDP_RSS_FLAGS) &&
745 !(interface->flags & UDP_RSS_FLAGS))
746 netif_warn(interface, drv, interface->netdev,
747 "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
748
749 interface->flags = flags;
750
751 /* Perform hash on these packet types */
752 mrqc = FM10K_MRQC_IPV4 |
753 FM10K_MRQC_TCP_IPV4 |
754 FM10K_MRQC_IPV6 |
755 FM10K_MRQC_TCP_IPV6;
756
757 if (flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
758 mrqc |= FM10K_MRQC_UDP_IPV4;
759 if (flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
760 mrqc |= FM10K_MRQC_UDP_IPV6;
761
762 fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
763 }
764
765 return 0;
766 }
767
768 static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
769 {
770 struct fm10k_intfc *interface = netdev_priv(dev);
771 int ret = -EOPNOTSUPP;
772
773 switch (cmd->cmd) {
774 case ETHTOOL_SRXFH:
775 ret = fm10k_set_rss_hash_opt(interface, cmd);
776 break;
777 default:
778 break;
779 }
780
781 return ret;
782 }
783
784 static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
785 {
786 struct fm10k_hw *hw = &interface->hw;
787 struct fm10k_mbx_info *mbx = &hw->mbx;
788 u32 attr_flag, test_msg[6];
789 unsigned long timeout;
790 int err;
791
792 /* For now this is a VF only feature */
793 if (hw->mac.type != fm10k_mac_vf)
794 return 0;
795
796 /* loop through both nested and unnested attribute types */
797 for (attr_flag = (1 << FM10K_TEST_MSG_UNSET);
798 attr_flag < (1 << (2 * FM10K_TEST_MSG_NESTED));
799 attr_flag += attr_flag) {
800 /* generate message to be tested */
801 fm10k_tlv_msg_test_create(test_msg, attr_flag);
802
803 fm10k_mbx_lock(interface);
804 mbx->test_result = FM10K_NOT_IMPLEMENTED;
805 err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
806 fm10k_mbx_unlock(interface);
807
808 /* wait up to 1 second for response */
809 timeout = jiffies + HZ;
810 do {
811 if (err < 0)
812 goto err_out;
813
814 usleep_range(500, 1000);
815
816 fm10k_mbx_lock(interface);
817 mbx->ops.process(hw, mbx);
818 fm10k_mbx_unlock(interface);
819
820 err = mbx->test_result;
821 if (!err)
822 break;
823 } while (time_is_after_jiffies(timeout));
824
825 /* reporting errors */
826 if (err)
827 goto err_out;
828 }
829
830 err_out:
831 *data = err < 0 ? (attr_flag) : (err > 0);
832 return err;
833 }
834
835 static void fm10k_self_test(struct net_device *dev,
836 struct ethtool_test *eth_test, u64 *data)
837 {
838 struct fm10k_intfc *interface = netdev_priv(dev);
839 struct fm10k_hw *hw = &interface->hw;
840
841 memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
842
843 if (FM10K_REMOVED(hw)) {
844 netif_err(interface, drv, dev,
845 "Interface removed - test blocked\n");
846 eth_test->flags |= ETH_TEST_FL_FAILED;
847 return;
848 }
849
850 if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
851 eth_test->flags |= ETH_TEST_FL_FAILED;
852 }
853
854 static u32 fm10k_get_reta_size(struct net_device *netdev)
855 {
856 return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
857 }
858
859 static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
860 {
861 struct fm10k_intfc *interface = netdev_priv(netdev);
862 int i;
863
864 if (!indir)
865 return 0;
866
867 for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
868 u32 reta = interface->reta[i];
869
870 indir[0] = (reta << 24) >> 24;
871 indir[1] = (reta << 16) >> 24;
872 indir[2] = (reta << 8) >> 24;
873 indir[3] = (reta) >> 24;
874 }
875
876 return 0;
877 }
878
879 static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
880 {
881 struct fm10k_intfc *interface = netdev_priv(netdev);
882 struct fm10k_hw *hw = &interface->hw;
883 int i;
884 u16 rss_i;
885
886 if (!indir)
887 return 0;
888
889 /* Verify user input. */
890 rss_i = interface->ring_feature[RING_F_RSS].indices;
891 for (i = fm10k_get_reta_size(netdev); i--;) {
892 if (indir[i] < rss_i)
893 continue;
894 return -EINVAL;
895 }
896
897 /* record entries to reta table */
898 for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
899 u32 reta = indir[0] |
900 (indir[1] << 8) |
901 (indir[2] << 16) |
902 (indir[3] << 24);
903
904 if (interface->reta[i] == reta)
905 continue;
906
907 interface->reta[i] = reta;
908 fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
909 }
910
911 return 0;
912 }
913
914 static u32 fm10k_get_rssrk_size(struct net_device *netdev)
915 {
916 return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
917 }
918
919 static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key,
920 u8 *hfunc)
921 {
922 struct fm10k_intfc *interface = netdev_priv(netdev);
923 int i, err;
924
925 if (hfunc)
926 *hfunc = ETH_RSS_HASH_TOP;
927
928 err = fm10k_get_reta(netdev, indir);
929 if (err || !key)
930 return err;
931
932 for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
933 *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
934
935 return 0;
936 }
937
938 static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir,
939 const u8 *key, const u8 hfunc)
940 {
941 struct fm10k_intfc *interface = netdev_priv(netdev);
942 struct fm10k_hw *hw = &interface->hw;
943 int i, err;
944
945 /* We do not allow change in unsupported parameters */
946 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
947 return -EOPNOTSUPP;
948
949 err = fm10k_set_reta(netdev, indir);
950 if (err || !key)
951 return err;
952
953 for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) {
954 u32 rssrk = le32_to_cpu(*(__le32 *)key);
955
956 if (interface->rssrk[i] == rssrk)
957 continue;
958
959 interface->rssrk[i] = rssrk;
960 fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
961 }
962
963 return 0;
964 }
965
966 static unsigned int fm10k_max_channels(struct net_device *dev)
967 {
968 struct fm10k_intfc *interface = netdev_priv(dev);
969 unsigned int max_combined = interface->hw.mac.max_queues;
970 u8 tcs = netdev_get_num_tc(dev);
971
972 /* For QoS report channels per traffic class */
973 if (tcs > 1)
974 max_combined = 1 << (fls(max_combined / tcs) - 1);
975
976 return max_combined;
977 }
978
979 static void fm10k_get_channels(struct net_device *dev,
980 struct ethtool_channels *ch)
981 {
982 struct fm10k_intfc *interface = netdev_priv(dev);
983 struct fm10k_hw *hw = &interface->hw;
984
985 /* report maximum channels */
986 ch->max_combined = fm10k_max_channels(dev);
987
988 /* report info for other vector */
989 ch->max_other = NON_Q_VECTORS(hw);
990 ch->other_count = ch->max_other;
991
992 /* record RSS queues */
993 ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
994 }
995
996 static int fm10k_set_channels(struct net_device *dev,
997 struct ethtool_channels *ch)
998 {
999 struct fm10k_intfc *interface = netdev_priv(dev);
1000 unsigned int count = ch->combined_count;
1001 struct fm10k_hw *hw = &interface->hw;
1002
1003 /* verify they are not requesting separate vectors */
1004 if (!count || ch->rx_count || ch->tx_count)
1005 return -EINVAL;
1006
1007 /* verify other_count has not changed */
1008 if (ch->other_count != NON_Q_VECTORS(hw))
1009 return -EINVAL;
1010
1011 /* verify the number of channels does not exceed hardware limits */
1012 if (count > fm10k_max_channels(dev))
1013 return -EINVAL;
1014
1015 interface->ring_feature[RING_F_RSS].limit = count;
1016
1017 /* use setup TC to update any traffic class queue mapping */
1018 return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
1019 }
1020
1021 static int fm10k_get_ts_info(struct net_device *dev,
1022 struct ethtool_ts_info *info)
1023 {
1024 struct fm10k_intfc *interface = netdev_priv(dev);
1025
1026 info->so_timestamping =
1027 SOF_TIMESTAMPING_TX_SOFTWARE |
1028 SOF_TIMESTAMPING_RX_SOFTWARE |
1029 SOF_TIMESTAMPING_SOFTWARE |
1030 SOF_TIMESTAMPING_TX_HARDWARE |
1031 SOF_TIMESTAMPING_RX_HARDWARE |
1032 SOF_TIMESTAMPING_RAW_HARDWARE;
1033
1034 if (interface->ptp_clock)
1035 info->phc_index = ptp_clock_index(interface->ptp_clock);
1036 else
1037 info->phc_index = -1;
1038
1039 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1040 (1 << HWTSTAMP_TX_ON);
1041
1042 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1043 (1 << HWTSTAMP_FILTER_ALL);
1044
1045 return 0;
1046 }
1047
1048 static const struct ethtool_ops fm10k_ethtool_ops = {
1049 .get_strings = fm10k_get_strings,
1050 .get_sset_count = fm10k_get_sset_count,
1051 .get_ethtool_stats = fm10k_get_ethtool_stats,
1052 .get_drvinfo = fm10k_get_drvinfo,
1053 .get_link = ethtool_op_get_link,
1054 .get_pauseparam = fm10k_get_pauseparam,
1055 .set_pauseparam = fm10k_set_pauseparam,
1056 .get_msglevel = fm10k_get_msglevel,
1057 .set_msglevel = fm10k_set_msglevel,
1058 .get_ringparam = fm10k_get_ringparam,
1059 .set_ringparam = fm10k_set_ringparam,
1060 .get_coalesce = fm10k_get_coalesce,
1061 .set_coalesce = fm10k_set_coalesce,
1062 .get_rxnfc = fm10k_get_rxnfc,
1063 .set_rxnfc = fm10k_set_rxnfc,
1064 .get_regs = fm10k_get_regs,
1065 .get_regs_len = fm10k_get_regs_len,
1066 .self_test = fm10k_self_test,
1067 .get_rxfh_indir_size = fm10k_get_reta_size,
1068 .get_rxfh_key_size = fm10k_get_rssrk_size,
1069 .get_rxfh = fm10k_get_rssh,
1070 .set_rxfh = fm10k_set_rssh,
1071 .get_channels = fm10k_get_channels,
1072 .set_channels = fm10k_set_channels,
1073 .get_ts_info = fm10k_get_ts_info,
1074 };
1075
1076 void fm10k_set_ethtool_ops(struct net_device *dev)
1077 {
1078 dev->ethtool_ops = &fm10k_ethtool_ops;
1079 }
Linux kernel - Deliverables
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