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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (c) 2018 Intel Corporation */
3
4/* ethtool support for igc */
5#include <linux/if_vlan.h>
6#include <linux/pm_runtime.h>
7
8#include "igc.h"
9
10/* forward declaration */
11struct igc_stats {
12 char stat_string[ETH_GSTRING_LEN];
13 int sizeof_stat;
14 int stat_offset;
15};
16
17#define IGC_STAT(_name, _stat) { \
18 .stat_string = _name, \
19 .sizeof_stat = FIELD_SIZEOF(struct igc_adapter, _stat), \
20 .stat_offset = offsetof(struct igc_adapter, _stat) \
21}
22
23static const struct igc_stats igc_gstrings_stats[] = {
24 IGC_STAT("rx_packets", stats.gprc),
25 IGC_STAT("tx_packets", stats.gptc),
26 IGC_STAT("rx_bytes", stats.gorc),
27 IGC_STAT("tx_bytes", stats.gotc),
28 IGC_STAT("rx_broadcast", stats.bprc),
29 IGC_STAT("tx_broadcast", stats.bptc),
30 IGC_STAT("rx_multicast", stats.mprc),
31 IGC_STAT("tx_multicast", stats.mptc),
32 IGC_STAT("multicast", stats.mprc),
33 IGC_STAT("collisions", stats.colc),
34 IGC_STAT("rx_crc_errors", stats.crcerrs),
35 IGC_STAT("rx_no_buffer_count", stats.rnbc),
36 IGC_STAT("rx_missed_errors", stats.mpc),
37 IGC_STAT("tx_aborted_errors", stats.ecol),
38 IGC_STAT("tx_carrier_errors", stats.tncrs),
39 IGC_STAT("tx_window_errors", stats.latecol),
40 IGC_STAT("tx_abort_late_coll", stats.latecol),
41 IGC_STAT("tx_deferred_ok", stats.dc),
42 IGC_STAT("tx_single_coll_ok", stats.scc),
43 IGC_STAT("tx_multi_coll_ok", stats.mcc),
44 IGC_STAT("tx_timeout_count", tx_timeout_count),
45 IGC_STAT("rx_long_length_errors", stats.roc),
46 IGC_STAT("rx_short_length_errors", stats.ruc),
47 IGC_STAT("rx_align_errors", stats.algnerrc),
48 IGC_STAT("tx_tcp_seg_good", stats.tsctc),
49 IGC_STAT("tx_tcp_seg_failed", stats.tsctfc),
50 IGC_STAT("rx_flow_control_xon", stats.xonrxc),
51 IGC_STAT("rx_flow_control_xoff", stats.xoffrxc),
52 IGC_STAT("tx_flow_control_xon", stats.xontxc),
53 IGC_STAT("tx_flow_control_xoff", stats.xofftxc),
54 IGC_STAT("rx_long_byte_count", stats.gorc),
55 IGC_STAT("tx_dma_out_of_sync", stats.doosync),
56 IGC_STAT("tx_smbus", stats.mgptc),
57 IGC_STAT("rx_smbus", stats.mgprc),
58 IGC_STAT("dropped_smbus", stats.mgpdc),
59 IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
60 IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
61 IGC_STAT("os2bmc_tx_by_host", stats.o2bspc),
62 IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc),
63 IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
64 IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
65 IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
66};
67
68#define IGC_NETDEV_STAT(_net_stat) { \
69 .stat_string = __stringify(_net_stat), \
70 .sizeof_stat = FIELD_SIZEOF(struct rtnl_link_stats64, _net_stat), \
71 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
72}
73
74static const struct igc_stats igc_gstrings_net_stats[] = {
75 IGC_NETDEV_STAT(rx_errors),
76 IGC_NETDEV_STAT(tx_errors),
77 IGC_NETDEV_STAT(tx_dropped),
78 IGC_NETDEV_STAT(rx_length_errors),
79 IGC_NETDEV_STAT(rx_over_errors),
80 IGC_NETDEV_STAT(rx_frame_errors),
81 IGC_NETDEV_STAT(rx_fifo_errors),
82 IGC_NETDEV_STAT(tx_fifo_errors),
83 IGC_NETDEV_STAT(tx_heartbeat_errors)
84};
85
86enum igc_diagnostics_results {
87 TEST_REG = 0,
88 TEST_EEP,
89 TEST_IRQ,
90 TEST_LOOP,
91 TEST_LINK
92};
93
94static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
95 [TEST_REG] = "Register test (offline)",
96 [TEST_EEP] = "Eeprom test (offline)",
97 [TEST_IRQ] = "Interrupt test (offline)",
98 [TEST_LOOP] = "Loopback test (offline)",
99 [TEST_LINK] = "Link test (on/offline)"
100};
101
102#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
103
104#define IGC_GLOBAL_STATS_LEN \
105 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
106#define IGC_NETDEV_STATS_LEN \
107 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
108#define IGC_RX_QUEUE_STATS_LEN \
109 (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
110#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
111#define IGC_QUEUE_STATS_LEN \
112 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
113 IGC_RX_QUEUE_STATS_LEN) + \
114 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
115 IGC_TX_QUEUE_STATS_LEN))
116#define IGC_STATS_LEN \
117 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
118
119static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
120#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0)
121 "legacy-rx",
122};
123
124#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
125
126static void igc_get_drvinfo(struct net_device *netdev,
127 struct ethtool_drvinfo *drvinfo)
128{
129 struct igc_adapter *adapter = netdev_priv(netdev);
130
131 strlcpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
132 strlcpy(drvinfo->version, igc_driver_version, sizeof(drvinfo->version));
133
134 /* add fw_version here */
135 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
136 sizeof(drvinfo->bus_info));
137
138 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
139}
140
141static int igc_get_regs_len(struct net_device *netdev)
142{
143 return IGC_REGS_LEN * sizeof(u32);
144}
145
146static void igc_get_regs(struct net_device *netdev,
147 struct ethtool_regs *regs, void *p)
148{
149 struct igc_adapter *adapter = netdev_priv(netdev);
150 struct igc_hw *hw = &adapter->hw;
151 u32 *regs_buff = p;
152 u8 i;
153
154 memset(p, 0, IGC_REGS_LEN * sizeof(u32));
155
156 regs->version = (1u << 24) | (hw->revision_id << 16) | hw->device_id;
157
158 /* General Registers */
159 regs_buff[0] = rd32(IGC_CTRL);
160 regs_buff[1] = rd32(IGC_STATUS);
161 regs_buff[2] = rd32(IGC_CTRL_EXT);
162 regs_buff[3] = rd32(IGC_MDIC);
163 regs_buff[4] = rd32(IGC_CONNSW);
164
165 /* NVM Register */
166 regs_buff[5] = rd32(IGC_EECD);
167
168 /* Interrupt */
169 /* Reading EICS for EICR because they read the
170 * same but EICS does not clear on read
171 */
172 regs_buff[6] = rd32(IGC_EICS);
173 regs_buff[7] = rd32(IGC_EICS);
174 regs_buff[8] = rd32(IGC_EIMS);
175 regs_buff[9] = rd32(IGC_EIMC);
176 regs_buff[10] = rd32(IGC_EIAC);
177 regs_buff[11] = rd32(IGC_EIAM);
178 /* Reading ICS for ICR because they read the
179 * same but ICS does not clear on read
180 */
181 regs_buff[12] = rd32(IGC_ICS);
182 regs_buff[13] = rd32(IGC_ICS);
183 regs_buff[14] = rd32(IGC_IMS);
184 regs_buff[15] = rd32(IGC_IMC);
185 regs_buff[16] = rd32(IGC_IAC);
186 regs_buff[17] = rd32(IGC_IAM);
187
188 /* Flow Control */
189 regs_buff[18] = rd32(IGC_FCAL);
190 regs_buff[19] = rd32(IGC_FCAH);
191 regs_buff[20] = rd32(IGC_FCTTV);
192 regs_buff[21] = rd32(IGC_FCRTL);
193 regs_buff[22] = rd32(IGC_FCRTH);
194 regs_buff[23] = rd32(IGC_FCRTV);
195
196 /* Receive */
197 regs_buff[24] = rd32(IGC_RCTL);
198 regs_buff[25] = rd32(IGC_RXCSUM);
199 regs_buff[26] = rd32(IGC_RLPML);
200 regs_buff[27] = rd32(IGC_RFCTL);
201
202 /* Transmit */
203 regs_buff[28] = rd32(IGC_TCTL);
204 regs_buff[29] = rd32(IGC_TIPG);
205
206 /* Wake Up */
207
208 /* MAC */
209
210 /* Statistics */
211 regs_buff[30] = adapter->stats.crcerrs;
212 regs_buff[31] = adapter->stats.algnerrc;
213 regs_buff[32] = adapter->stats.symerrs;
214 regs_buff[33] = adapter->stats.rxerrc;
215 regs_buff[34] = adapter->stats.mpc;
216 regs_buff[35] = adapter->stats.scc;
217 regs_buff[36] = adapter->stats.ecol;
218 regs_buff[37] = adapter->stats.mcc;
219 regs_buff[38] = adapter->stats.latecol;
220 regs_buff[39] = adapter->stats.colc;
221 regs_buff[40] = adapter->stats.dc;
222 regs_buff[41] = adapter->stats.tncrs;
223 regs_buff[42] = adapter->stats.sec;
224 regs_buff[43] = adapter->stats.htdpmc;
225 regs_buff[44] = adapter->stats.rlec;
226 regs_buff[45] = adapter->stats.xonrxc;
227 regs_buff[46] = adapter->stats.xontxc;
228 regs_buff[47] = adapter->stats.xoffrxc;
229 regs_buff[48] = adapter->stats.xofftxc;
230 regs_buff[49] = adapter->stats.fcruc;
231 regs_buff[50] = adapter->stats.prc64;
232 regs_buff[51] = adapter->stats.prc127;
233 regs_buff[52] = adapter->stats.prc255;
234 regs_buff[53] = adapter->stats.prc511;
235 regs_buff[54] = adapter->stats.prc1023;
236 regs_buff[55] = adapter->stats.prc1522;
237 regs_buff[56] = adapter->stats.gprc;
238 regs_buff[57] = adapter->stats.bprc;
239 regs_buff[58] = adapter->stats.mprc;
240 regs_buff[59] = adapter->stats.gptc;
241 regs_buff[60] = adapter->stats.gorc;
242 regs_buff[61] = adapter->stats.gotc;
243 regs_buff[62] = adapter->stats.rnbc;
244 regs_buff[63] = adapter->stats.ruc;
245 regs_buff[64] = adapter->stats.rfc;
246 regs_buff[65] = adapter->stats.roc;
247 regs_buff[66] = adapter->stats.rjc;
248 regs_buff[67] = adapter->stats.mgprc;
249 regs_buff[68] = adapter->stats.mgpdc;
250 regs_buff[69] = adapter->stats.mgptc;
251 regs_buff[70] = adapter->stats.tor;
252 regs_buff[71] = adapter->stats.tot;
253 regs_buff[72] = adapter->stats.tpr;
254 regs_buff[73] = adapter->stats.tpt;
255 regs_buff[74] = adapter->stats.ptc64;
256 regs_buff[75] = adapter->stats.ptc127;
257 regs_buff[76] = adapter->stats.ptc255;
258 regs_buff[77] = adapter->stats.ptc511;
259 regs_buff[78] = adapter->stats.ptc1023;
260 regs_buff[79] = adapter->stats.ptc1522;
261 regs_buff[80] = adapter->stats.mptc;
262 regs_buff[81] = adapter->stats.bptc;
263 regs_buff[82] = adapter->stats.tsctc;
264 regs_buff[83] = adapter->stats.iac;
265 regs_buff[84] = adapter->stats.rpthc;
266 regs_buff[85] = adapter->stats.hgptc;
267 regs_buff[86] = adapter->stats.hgorc;
268 regs_buff[87] = adapter->stats.hgotc;
269 regs_buff[88] = adapter->stats.lenerrs;
270 regs_buff[89] = adapter->stats.scvpc;
271 regs_buff[90] = adapter->stats.hrmpc;
272
273 for (i = 0; i < 4; i++)
274 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
275 for (i = 0; i < 4; i++)
276 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
277 for (i = 0; i < 4; i++)
278 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
279 for (i = 0; i < 4; i++)
280 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
281 for (i = 0; i < 4; i++)
282 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
283 for (i = 0; i < 4; i++)
284 regs_buff[111 + i] = rd32(IGC_RDH(i));
285 for (i = 0; i < 4; i++)
286 regs_buff[115 + i] = rd32(IGC_RDT(i));
287 for (i = 0; i < 4; i++)
288 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
289
290 for (i = 0; i < 10; i++)
291 regs_buff[123 + i] = rd32(IGC_EITR(i));
292 for (i = 0; i < 16; i++)
293 regs_buff[139 + i] = rd32(IGC_RAL(i));
294 for (i = 0; i < 16; i++)
295 regs_buff[145 + i] = rd32(IGC_RAH(i));
296
297 for (i = 0; i < 4; i++)
298 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
299 for (i = 0; i < 4; i++)
300 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
301 for (i = 0; i < 4; i++)
302 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
303 for (i = 0; i < 4; i++)
304 regs_buff[160 + i] = rd32(IGC_TDH(i));
305 for (i = 0; i < 4; i++)
306 regs_buff[164 + i] = rd32(IGC_TDT(i));
307 for (i = 0; i < 4; i++)
308 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
309}
310
311static u32 igc_get_msglevel(struct net_device *netdev)
312{
313 struct igc_adapter *adapter = netdev_priv(netdev);
314
315 return adapter->msg_enable;
316}
317
318static void igc_set_msglevel(struct net_device *netdev, u32 data)
319{
320 struct igc_adapter *adapter = netdev_priv(netdev);
321
322 adapter->msg_enable = data;
323}
324
325static int igc_nway_reset(struct net_device *netdev)
326{
327 struct igc_adapter *adapter = netdev_priv(netdev);
328
329 if (netif_running(netdev))
330 igc_reinit_locked(adapter);
331 return 0;
332}
333
334static u32 igc_get_link(struct net_device *netdev)
335{
336 struct igc_adapter *adapter = netdev_priv(netdev);
337 struct igc_mac_info *mac = &adapter->hw.mac;
338
339 /* If the link is not reported up to netdev, interrupts are disabled,
340 * and so the physical link state may have changed since we last
341 * looked. Set get_link_status to make sure that the true link
342 * state is interrogated, rather than pulling a cached and possibly
343 * stale link state from the driver.
344 */
345 if (!netif_carrier_ok(netdev))
346 mac->get_link_status = 1;
347
348 return igc_has_link(adapter);
349}
350
351static int igc_get_eeprom_len(struct net_device *netdev)
352{
353 struct igc_adapter *adapter = netdev_priv(netdev);
354
355 return adapter->hw.nvm.word_size * 2;
356}
357
358static int igc_get_eeprom(struct net_device *netdev,
359 struct ethtool_eeprom *eeprom, u8 *bytes)
360{
361 struct igc_adapter *adapter = netdev_priv(netdev);
362 struct igc_hw *hw = &adapter->hw;
363 int first_word, last_word;
364 u16 *eeprom_buff;
365 int ret_val = 0;
366 u16 i;
367
368 if (eeprom->len == 0)
369 return -EINVAL;
370
371 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
372
373 first_word = eeprom->offset >> 1;
374 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
375
376 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
377 GFP_KERNEL);
378 if (!eeprom_buff)
379 return -ENOMEM;
380
381 if (hw->nvm.type == igc_nvm_eeprom_spi) {
382 ret_val = hw->nvm.ops.read(hw, first_word,
383 last_word - first_word + 1,
384 eeprom_buff);
385 } else {
386 for (i = 0; i < last_word - first_word + 1; i++) {
387 ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
388 &eeprom_buff[i]);
389 if (ret_val)
390 break;
391 }
392 }
393
394 /* Device's eeprom is always little-endian, word addressable */
395 for (i = 0; i < last_word - first_word + 1; i++)
396 le16_to_cpus(&eeprom_buff[i]);
397
398 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
399 eeprom->len);
400 kfree(eeprom_buff);
401
402 return ret_val;
403}
404
405static int igc_set_eeprom(struct net_device *netdev,
406 struct ethtool_eeprom *eeprom, u8 *bytes)
407{
408 struct igc_adapter *adapter = netdev_priv(netdev);
409 struct igc_hw *hw = &adapter->hw;
410 int max_len, first_word, last_word, ret_val = 0;
411 u16 *eeprom_buff;
412 void *ptr;
413 u16 i;
414
415 if (eeprom->len == 0)
416 return -EOPNOTSUPP;
417
418 if (hw->mac.type >= igc_i225 &&
419 !igc_get_flash_presence_i225(hw)) {
420 return -EOPNOTSUPP;
421 }
422
423 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
424 return -EFAULT;
425
426 max_len = hw->nvm.word_size * 2;
427
428 first_word = eeprom->offset >> 1;
429 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
430 eeprom_buff = kmalloc(max_len, GFP_KERNEL);
431 if (!eeprom_buff)
432 return -ENOMEM;
433
434 ptr = (void *)eeprom_buff;
435
436 if (eeprom->offset & 1) {
437 /* need read/modify/write of first changed EEPROM word
438 * only the second byte of the word is being modified
439 */
440 ret_val = hw->nvm.ops.read(hw, first_word, 1,
441 &eeprom_buff[0]);
442 ptr++;
443 }
444 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
445 /* need read/modify/write of last changed EEPROM word
446 * only the first byte of the word is being modified
447 */
448 ret_val = hw->nvm.ops.read(hw, last_word, 1,
449 &eeprom_buff[last_word - first_word]);
450 }
451
452 /* Device's eeprom is always little-endian, word addressable */
453 for (i = 0; i < last_word - first_word + 1; i++)
454 le16_to_cpus(&eeprom_buff[i]);
455
456 memcpy(ptr, bytes, eeprom->len);
457
458 for (i = 0; i < last_word - first_word + 1; i++)
459 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
460
461 ret_val = hw->nvm.ops.write(hw, first_word,
462 last_word - first_word + 1, eeprom_buff);
463
464 /* Update the checksum if nvm write succeeded */
465 if (ret_val == 0)
466 hw->nvm.ops.update(hw);
467
468 /* check if need: igc_set_fw_version(adapter); */
469 kfree(eeprom_buff);
470 return ret_val;
471}
472
473static void igc_get_ringparam(struct net_device *netdev,
474 struct ethtool_ringparam *ring)
475{
476 struct igc_adapter *adapter = netdev_priv(netdev);
477
478 ring->rx_max_pending = IGC_MAX_RXD;
479 ring->tx_max_pending = IGC_MAX_TXD;
480 ring->rx_pending = adapter->rx_ring_count;
481 ring->tx_pending = adapter->tx_ring_count;
482}
483
484static int igc_set_ringparam(struct net_device *netdev,
485 struct ethtool_ringparam *ring)
486{
487 struct igc_adapter *adapter = netdev_priv(netdev);
488 struct igc_ring *temp_ring;
489 u16 new_rx_count, new_tx_count;
490 int i, err = 0;
491
492 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
493 return -EINVAL;
494
495 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
496 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
497 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
498
499 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
500 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
501 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
502
503 if (new_tx_count == adapter->tx_ring_count &&
504 new_rx_count == adapter->rx_ring_count) {
505 /* nothing to do */
506 return 0;
507 }
508
509 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
510 usleep_range(1000, 2000);
511
512 if (!netif_running(adapter->netdev)) {
513 for (i = 0; i < adapter->num_tx_queues; i++)
514 adapter->tx_ring[i]->count = new_tx_count;
515 for (i = 0; i < adapter->num_rx_queues; i++)
516 adapter->rx_ring[i]->count = new_rx_count;
517 adapter->tx_ring_count = new_tx_count;
518 adapter->rx_ring_count = new_rx_count;
519 goto clear_reset;
520 }
521
522 if (adapter->num_tx_queues > adapter->num_rx_queues)
523 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
524 adapter->num_tx_queues));
525 else
526 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
527 adapter->num_rx_queues));
528
529 if (!temp_ring) {
530 err = -ENOMEM;
531 goto clear_reset;
532 }
533
534 igc_down(adapter);
535
536 /* We can't just free everything and then setup again,
537 * because the ISRs in MSI-X mode get passed pointers
538 * to the Tx and Rx ring structs.
539 */
540 if (new_tx_count != adapter->tx_ring_count) {
541 for (i = 0; i < adapter->num_tx_queues; i++) {
542 memcpy(&temp_ring[i], adapter->tx_ring[i],
543 sizeof(struct igc_ring));
544
545 temp_ring[i].count = new_tx_count;
546 err = igc_setup_tx_resources(&temp_ring[i]);
547 if (err) {
548 while (i) {
549 i--;
550 igc_free_tx_resources(&temp_ring[i]);
551 }
552 goto err_setup;
553 }
554 }
555
556 for (i = 0; i < adapter->num_tx_queues; i++) {
557 igc_free_tx_resources(adapter->tx_ring[i]);
558
559 memcpy(adapter->tx_ring[i], &temp_ring[i],
560 sizeof(struct igc_ring));
561 }
562
563 adapter->tx_ring_count = new_tx_count;
564 }
565
566 if (new_rx_count != adapter->rx_ring_count) {
567 for (i = 0; i < adapter->num_rx_queues; i++) {
568 memcpy(&temp_ring[i], adapter->rx_ring[i],
569 sizeof(struct igc_ring));
570
571 temp_ring[i].count = new_rx_count;
572 err = igc_setup_rx_resources(&temp_ring[i]);
573 if (err) {
574 while (i) {
575 i--;
576 igc_free_rx_resources(&temp_ring[i]);
577 }
578 goto err_setup;
579 }
580 }
581
582 for (i = 0; i < adapter->num_rx_queues; i++) {
583 igc_free_rx_resources(adapter->rx_ring[i]);
584
585 memcpy(adapter->rx_ring[i], &temp_ring[i],
586 sizeof(struct igc_ring));
587 }
588
589 adapter->rx_ring_count = new_rx_count;
590 }
591err_setup:
592 igc_up(adapter);
593 vfree(temp_ring);
594clear_reset:
595 clear_bit(__IGC_RESETTING, &adapter->state);
596 return err;
597}
598
599static void igc_get_pauseparam(struct net_device *netdev,
600 struct ethtool_pauseparam *pause)
601{
602 struct igc_adapter *adapter = netdev_priv(netdev);
603 struct igc_hw *hw = &adapter->hw;
604
605 pause->autoneg =
606 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
607
608 if (hw->fc.current_mode == igc_fc_rx_pause) {
609 pause->rx_pause = 1;
610 } else if (hw->fc.current_mode == igc_fc_tx_pause) {
611 pause->tx_pause = 1;
612 } else if (hw->fc.current_mode == igc_fc_full) {
613 pause->rx_pause = 1;
614 pause->tx_pause = 1;
615 }
616}
617
618static int igc_set_pauseparam(struct net_device *netdev,
619 struct ethtool_pauseparam *pause)
620{
621 struct igc_adapter *adapter = netdev_priv(netdev);
622 struct igc_hw *hw = &adapter->hw;
623 int retval = 0;
624
625 adapter->fc_autoneg = pause->autoneg;
626
627 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
628 usleep_range(1000, 2000);
629
630 if (adapter->fc_autoneg == AUTONEG_ENABLE) {
631 hw->fc.requested_mode = igc_fc_default;
632 if (netif_running(adapter->netdev)) {
633 igc_down(adapter);
634 igc_up(adapter);
635 } else {
636 igc_reset(adapter);
637 }
638 } else {
639 if (pause->rx_pause && pause->tx_pause)
640 hw->fc.requested_mode = igc_fc_full;
641 else if (pause->rx_pause && !pause->tx_pause)
642 hw->fc.requested_mode = igc_fc_rx_pause;
643 else if (!pause->rx_pause && pause->tx_pause)
644 hw->fc.requested_mode = igc_fc_tx_pause;
645 else if (!pause->rx_pause && !pause->tx_pause)
646 hw->fc.requested_mode = igc_fc_none;
647
648 hw->fc.current_mode = hw->fc.requested_mode;
649
650 retval = ((hw->phy.media_type == igc_media_type_copper) ?
651 igc_force_mac_fc(hw) : igc_setup_link(hw));
652 }
653
654 clear_bit(__IGC_RESETTING, &adapter->state);
655 return retval;
656}
657
658static void igc_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
659{
660 struct igc_adapter *adapter = netdev_priv(netdev);
661 u8 *p = data;
662 int i;
663
664 switch (stringset) {
665 case ETH_SS_TEST:
666 memcpy(data, *igc_gstrings_test,
667 IGC_TEST_LEN * ETH_GSTRING_LEN);
668 break;
669 case ETH_SS_STATS:
670 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
671 memcpy(p, igc_gstrings_stats[i].stat_string,
672 ETH_GSTRING_LEN);
673 p += ETH_GSTRING_LEN;
674 }
675 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
676 memcpy(p, igc_gstrings_net_stats[i].stat_string,
677 ETH_GSTRING_LEN);
678 p += ETH_GSTRING_LEN;
679 }
680 for (i = 0; i < adapter->num_tx_queues; i++) {
681 sprintf(p, "tx_queue_%u_packets", i);
682 p += ETH_GSTRING_LEN;
683 sprintf(p, "tx_queue_%u_bytes", i);
684 p += ETH_GSTRING_LEN;
685 sprintf(p, "tx_queue_%u_restart", i);
686 p += ETH_GSTRING_LEN;
687 }
688 for (i = 0; i < adapter->num_rx_queues; i++) {
689 sprintf(p, "rx_queue_%u_packets", i);
690 p += ETH_GSTRING_LEN;
691 sprintf(p, "rx_queue_%u_bytes", i);
692 p += ETH_GSTRING_LEN;
693 sprintf(p, "rx_queue_%u_drops", i);
694 p += ETH_GSTRING_LEN;
695 sprintf(p, "rx_queue_%u_csum_err", i);
696 p += ETH_GSTRING_LEN;
697 sprintf(p, "rx_queue_%u_alloc_failed", i);
698 p += ETH_GSTRING_LEN;
699 }
700 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
701 break;
702 case ETH_SS_PRIV_FLAGS:
703 memcpy(data, igc_priv_flags_strings,
704 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
705 break;
706 }
707}
708
709static int igc_get_sset_count(struct net_device *netdev, int sset)
710{
711 switch (sset) {
712 case ETH_SS_STATS:
713 return IGC_STATS_LEN;
714 case ETH_SS_TEST:
715 return IGC_TEST_LEN;
716 case ETH_SS_PRIV_FLAGS:
717 return IGC_PRIV_FLAGS_STR_LEN;
718 default:
719 return -ENOTSUPP;
720 }
721}
722
723static void igc_get_ethtool_stats(struct net_device *netdev,
724 struct ethtool_stats *stats, u64 *data)
725{
726 struct igc_adapter *adapter = netdev_priv(netdev);
727 struct rtnl_link_stats64 *net_stats = &adapter->stats64;
728 unsigned int start;
729 struct igc_ring *ring;
730 int i, j;
731 char *p;
732
733 spin_lock(&adapter->stats64_lock);
734 igc_update_stats(adapter);
735
736 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
737 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
738 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
739 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
740 }
741 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
742 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
743 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
744 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
745 }
746 for (j = 0; j < adapter->num_tx_queues; j++) {
747 u64 restart2;
748
749 ring = adapter->tx_ring[j];
750 do {
751 start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
752 data[i] = ring->tx_stats.packets;
753 data[i + 1] = ring->tx_stats.bytes;
754 data[i + 2] = ring->tx_stats.restart_queue;
755 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
756 do {
757 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
758 restart2 = ring->tx_stats.restart_queue2;
759 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
760 data[i + 2] += restart2;
761
762 i += IGC_TX_QUEUE_STATS_LEN;
763 }
764 for (j = 0; j < adapter->num_rx_queues; j++) {
765 ring = adapter->rx_ring[j];
766 do {
767 start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
768 data[i] = ring->rx_stats.packets;
769 data[i + 1] = ring->rx_stats.bytes;
770 data[i + 2] = ring->rx_stats.drops;
771 data[i + 3] = ring->rx_stats.csum_err;
772 data[i + 4] = ring->rx_stats.alloc_failed;
773 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
774 i += IGC_RX_QUEUE_STATS_LEN;
775 }
776 spin_unlock(&adapter->stats64_lock);
777}
778
779static int igc_get_coalesce(struct net_device *netdev,
780 struct ethtool_coalesce *ec)
781{
782 struct igc_adapter *adapter = netdev_priv(netdev);
783
784 if (adapter->rx_itr_setting <= 3)
785 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
786 else
787 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
788
789 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
790 if (adapter->tx_itr_setting <= 3)
791 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
792 else
793 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
794 }
795
796 return 0;
797}
798
799static int igc_set_coalesce(struct net_device *netdev,
800 struct ethtool_coalesce *ec)
801{
802 struct igc_adapter *adapter = netdev_priv(netdev);
803 int i;
804
805 if (ec->rx_max_coalesced_frames ||
806 ec->rx_coalesce_usecs_irq ||
807 ec->rx_max_coalesced_frames_irq ||
808 ec->tx_max_coalesced_frames ||
809 ec->tx_coalesce_usecs_irq ||
810 ec->stats_block_coalesce_usecs ||
811 ec->use_adaptive_rx_coalesce ||
812 ec->use_adaptive_tx_coalesce ||
813 ec->pkt_rate_low ||
814 ec->rx_coalesce_usecs_low ||
815 ec->rx_max_coalesced_frames_low ||
816 ec->tx_coalesce_usecs_low ||
817 ec->tx_max_coalesced_frames_low ||
818 ec->pkt_rate_high ||
819 ec->rx_coalesce_usecs_high ||
820 ec->rx_max_coalesced_frames_high ||
821 ec->tx_coalesce_usecs_high ||
822 ec->tx_max_coalesced_frames_high ||
823 ec->rate_sample_interval)
824 return -ENOTSUPP;
825
826 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
827 (ec->rx_coalesce_usecs > 3 &&
828 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
829 ec->rx_coalesce_usecs == 2)
830 return -EINVAL;
831
832 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
833 (ec->tx_coalesce_usecs > 3 &&
834 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
835 ec->tx_coalesce_usecs == 2)
836 return -EINVAL;
837
838 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
839 return -EINVAL;
840
841 /* If ITR is disabled, disable DMAC */
842 if (ec->rx_coalesce_usecs == 0) {
843 if (adapter->flags & IGC_FLAG_DMAC)
844 adapter->flags &= ~IGC_FLAG_DMAC;
845 }
846
847 /* convert to rate of irq's per second */
848 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
849 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
850 else
851 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
852
853 /* convert to rate of irq's per second */
854 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
855 adapter->tx_itr_setting = adapter->rx_itr_setting;
856 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
857 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
858 else
859 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
860
861 for (i = 0; i < adapter->num_q_vectors; i++) {
862 struct igc_q_vector *q_vector = adapter->q_vector[i];
863
864 q_vector->tx.work_limit = adapter->tx_work_limit;
865 if (q_vector->rx.ring)
866 q_vector->itr_val = adapter->rx_itr_setting;
867 else
868 q_vector->itr_val = adapter->tx_itr_setting;
869 if (q_vector->itr_val && q_vector->itr_val <= 3)
870 q_vector->itr_val = IGC_START_ITR;
871 q_vector->set_itr = 1;
872 }
873
874 return 0;
875}
876
877#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
878static int igc_get_ethtool_nfc_entry(struct igc_adapter *adapter,
879 struct ethtool_rxnfc *cmd)
880{
881 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
882 struct igc_nfc_filter *rule = NULL;
883
884 /* report total rule count */
885 cmd->data = IGC_MAX_RXNFC_FILTERS;
886
887 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
888 if (fsp->location <= rule->sw_idx)
889 break;
890 }
891
892 if (!rule || fsp->location != rule->sw_idx)
893 return -EINVAL;
894
895 if (rule->filter.match_flags) {
896 fsp->flow_type = ETHER_FLOW;
897 fsp->ring_cookie = rule->action;
898 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
899 fsp->h_u.ether_spec.h_proto = rule->filter.etype;
900 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
901 }
902 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
903 fsp->flow_type |= FLOW_EXT;
904 fsp->h_ext.vlan_tci = rule->filter.vlan_tci;
905 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
906 }
907 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
908 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
909 rule->filter.dst_addr);
910 /* As we only support matching by the full
911 * mask, return the mask to userspace
912 */
913 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
914 }
915 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
916 ether_addr_copy(fsp->h_u.ether_spec.h_source,
917 rule->filter.src_addr);
918 /* As we only support matching by the full
919 * mask, return the mask to userspace
920 */
921 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
922 }
923
924 return 0;
925 }
926 return -EINVAL;
927}
928
929static int igc_get_ethtool_nfc_all(struct igc_adapter *adapter,
930 struct ethtool_rxnfc *cmd,
931 u32 *rule_locs)
932{
933 struct igc_nfc_filter *rule;
934 int cnt = 0;
935
936 /* report total rule count */
937 cmd->data = IGC_MAX_RXNFC_FILTERS;
938
939 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
940 if (cnt == cmd->rule_cnt)
941 return -EMSGSIZE;
942 rule_locs[cnt] = rule->sw_idx;
943 cnt++;
944 }
945
946 cmd->rule_cnt = cnt;
947
948 return 0;
949}
950
951static int igc_get_rss_hash_opts(struct igc_adapter *adapter,
952 struct ethtool_rxnfc *cmd)
953{
954 cmd->data = 0;
955
956 /* Report default options for RSS on igc */
957 switch (cmd->flow_type) {
958 case TCP_V4_FLOW:
959 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
960 /* Fall through */
961 case UDP_V4_FLOW:
962 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
963 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
964 /* Fall through */
965 case SCTP_V4_FLOW:
966 /* Fall through */
967 case AH_ESP_V4_FLOW:
968 /* Fall through */
969 case AH_V4_FLOW:
970 /* Fall through */
971 case ESP_V4_FLOW:
972 /* Fall through */
973 case IPV4_FLOW:
974 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
975 break;
976 case TCP_V6_FLOW:
977 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
978 /* Fall through */
979 case UDP_V6_FLOW:
980 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
981 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
982 /* Fall through */
983 case SCTP_V6_FLOW:
984 /* Fall through */
985 case AH_ESP_V6_FLOW:
986 /* Fall through */
987 case AH_V6_FLOW:
988 /* Fall through */
989 case ESP_V6_FLOW:
990 /* Fall through */
991 case IPV6_FLOW:
992 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
993 break;
994 default:
995 return -EINVAL;
996 }
997
998 return 0;
999}
1000
1001static int igc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1002 u32 *rule_locs)
1003{
1004 struct igc_adapter *adapter = netdev_priv(dev);
1005 int ret = -EOPNOTSUPP;
1006
1007 switch (cmd->cmd) {
1008 case ETHTOOL_GRXRINGS:
1009 cmd->data = adapter->num_rx_queues;
1010 ret = 0;
1011 break;
1012 case ETHTOOL_GRXCLSRLCNT:
1013 cmd->rule_cnt = adapter->nfc_filter_count;
1014 ret = 0;
1015 break;
1016 case ETHTOOL_GRXCLSRULE:
1017 ret = igc_get_ethtool_nfc_entry(adapter, cmd);
1018 break;
1019 case ETHTOOL_GRXCLSRLALL:
1020 ret = igc_get_ethtool_nfc_all(adapter, cmd, rule_locs);
1021 break;
1022 case ETHTOOL_GRXFH:
1023 ret = igc_get_rss_hash_opts(adapter, cmd);
1024 break;
1025 default:
1026 break;
1027 }
1028
1029 return ret;
1030}
1031
1032#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1033 IGC_FLAG_RSS_FIELD_IPV6_UDP)
1034static int igc_set_rss_hash_opt(struct igc_adapter *adapter,
1035 struct ethtool_rxnfc *nfc)
1036{
1037 u32 flags = adapter->flags;
1038
1039 /* RSS does not support anything other than hashing
1040 * to queues on src and dst IPs and ports
1041 */
1042 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1043 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1044 return -EINVAL;
1045
1046 switch (nfc->flow_type) {
1047 case TCP_V4_FLOW:
1048 case TCP_V6_FLOW:
1049 if (!(nfc->data & RXH_IP_SRC) ||
1050 !(nfc->data & RXH_IP_DST) ||
1051 !(nfc->data & RXH_L4_B_0_1) ||
1052 !(nfc->data & RXH_L4_B_2_3))
1053 return -EINVAL;
1054 break;
1055 case UDP_V4_FLOW:
1056 if (!(nfc->data & RXH_IP_SRC) ||
1057 !(nfc->data & RXH_IP_DST))
1058 return -EINVAL;
1059 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1060 case 0:
1061 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1062 break;
1063 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1064 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1065 break;
1066 default:
1067 return -EINVAL;
1068 }
1069 break;
1070 case UDP_V6_FLOW:
1071 if (!(nfc->data & RXH_IP_SRC) ||
1072 !(nfc->data & RXH_IP_DST))
1073 return -EINVAL;
1074 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1075 case 0:
1076 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1077 break;
1078 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1079 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1080 break;
1081 default:
1082 return -EINVAL;
1083 }
1084 break;
1085 case AH_ESP_V4_FLOW:
1086 case AH_V4_FLOW:
1087 case ESP_V4_FLOW:
1088 case SCTP_V4_FLOW:
1089 case AH_ESP_V6_FLOW:
1090 case AH_V6_FLOW:
1091 case ESP_V6_FLOW:
1092 case SCTP_V6_FLOW:
1093 if (!(nfc->data & RXH_IP_SRC) ||
1094 !(nfc->data & RXH_IP_DST) ||
1095 (nfc->data & RXH_L4_B_0_1) ||
1096 (nfc->data & RXH_L4_B_2_3))
1097 return -EINVAL;
1098 break;
1099 default:
1100 return -EINVAL;
1101 }
1102
1103 /* if we changed something we need to update flags */
1104 if (flags != adapter->flags) {
1105 struct igc_hw *hw = &adapter->hw;
1106 u32 mrqc = rd32(IGC_MRQC);
1107
1108 if ((flags & UDP_RSS_FLAGS) &&
1109 !(adapter->flags & UDP_RSS_FLAGS))
1110 dev_err(&adapter->pdev->dev,
1111 "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1112
1113 adapter->flags = flags;
1114
1115 /* Perform hash on these packet types */
1116 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1117 IGC_MRQC_RSS_FIELD_IPV4_TCP |
1118 IGC_MRQC_RSS_FIELD_IPV6 |
1119 IGC_MRQC_RSS_FIELD_IPV6_TCP;
1120
1121 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1122 IGC_MRQC_RSS_FIELD_IPV6_UDP);
1123
1124 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1125 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1126
1127 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1128 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1129
1130 wr32(IGC_MRQC, mrqc);
1131 }
1132
1133 return 0;
1134}
1135
1136static int igc_rxnfc_write_etype_filter(struct igc_adapter *adapter,
1137 struct igc_nfc_filter *input)
1138{
1139 struct igc_hw *hw = &adapter->hw;
1140 u8 i;
1141 u32 etqf;
1142 u16 etype;
1143
1144 /* find an empty etype filter register */
1145 for (i = 0; i < MAX_ETYPE_FILTER; ++i) {
1146 if (!adapter->etype_bitmap[i])
1147 break;
1148 }
1149 if (i == MAX_ETYPE_FILTER) {
1150 dev_err(&adapter->pdev->dev, "ethtool -N: etype filters are all used.\n");
1151 return -EINVAL;
1152 }
1153
1154 adapter->etype_bitmap[i] = true;
1155
1156 etqf = rd32(IGC_ETQF(i));
1157 etype = ntohs(input->filter.etype & ETHER_TYPE_FULL_MASK);
1158
1159 etqf |= IGC_ETQF_FILTER_ENABLE;
1160 etqf &= ~IGC_ETQF_ETYPE_MASK;
1161 etqf |= (etype & IGC_ETQF_ETYPE_MASK);
1162
1163 etqf &= ~IGC_ETQF_QUEUE_MASK;
1164 etqf |= ((input->action << IGC_ETQF_QUEUE_SHIFT)
1165 & IGC_ETQF_QUEUE_MASK);
1166 etqf |= IGC_ETQF_QUEUE_ENABLE;
1167
1168 wr32(IGC_ETQF(i), etqf);
1169
1170 input->etype_reg_index = i;
1171
1172 return 0;
1173}
1174
1175static int igc_rxnfc_write_vlan_prio_filter(struct igc_adapter *adapter,
1176 struct igc_nfc_filter *input)
1177{
1178 struct igc_hw *hw = &adapter->hw;
1179 u8 vlan_priority;
1180 u16 queue_index;
1181 u32 vlapqf;
1182
1183 vlapqf = rd32(IGC_VLAPQF);
1184 vlan_priority = (ntohs(input->filter.vlan_tci) & VLAN_PRIO_MASK)
1185 >> VLAN_PRIO_SHIFT;
1186 queue_index = (vlapqf >> (vlan_priority * 4)) & IGC_VLAPQF_QUEUE_MASK;
1187
1188 /* check whether this vlan prio is already set */
1189 if (vlapqf & IGC_VLAPQF_P_VALID(vlan_priority) &&
1190 queue_index != input->action) {
1191 dev_err(&adapter->pdev->dev, "ethtool rxnfc set vlan prio filter failed.\n");
1192 return -EEXIST;
1193 }
1194
1195 vlapqf |= IGC_VLAPQF_P_VALID(vlan_priority);
1196 vlapqf |= IGC_VLAPQF_QUEUE_SEL(vlan_priority, input->action);
1197
1198 wr32(IGC_VLAPQF, vlapqf);
1199
1200 return 0;
1201}
1202
1203int igc_add_filter(struct igc_adapter *adapter, struct igc_nfc_filter *input)
1204{
1205 struct igc_hw *hw = &adapter->hw;
1206 int err = -EINVAL;
1207
1208 if (hw->mac.type == igc_i225 &&
1209 !(input->filter.match_flags & ~IGC_FILTER_FLAG_SRC_MAC_ADDR)) {
1210 dev_err(&adapter->pdev->dev,
1211 "i225 doesn't support flow classification rules specifying only source addresses.\n");
1212 return -EOPNOTSUPP;
1213 }
1214
1215 if (input->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
1216 err = igc_rxnfc_write_etype_filter(adapter, input);
1217 if (err)
1218 return err;
1219 }
1220
1221 if (input->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
1222 err = igc_add_mac_steering_filter(adapter,
1223 input->filter.dst_addr,
1224 input->action, 0);
1225 err = min_t(int, err, 0);
1226 if (err)
1227 return err;
1228 }
1229
1230 if (input->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
1231 err = igc_add_mac_steering_filter(adapter,
1232 input->filter.src_addr,
1233 input->action,
1234 IGC_MAC_STATE_SRC_ADDR);
1235 err = min_t(int, err, 0);
1236 if (err)
1237 return err;
1238 }
1239
1240 if (input->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI)
1241 err = igc_rxnfc_write_vlan_prio_filter(adapter, input);
1242
1243 return err;
1244}
1245
1246static void igc_clear_etype_filter_regs(struct igc_adapter *adapter,
1247 u16 reg_index)
1248{
1249 struct igc_hw *hw = &adapter->hw;
1250 u32 etqf = rd32(IGC_ETQF(reg_index));
1251
1252 etqf &= ~IGC_ETQF_QUEUE_ENABLE;
1253 etqf &= ~IGC_ETQF_QUEUE_MASK;
1254 etqf &= ~IGC_ETQF_FILTER_ENABLE;
1255
1256 wr32(IGC_ETQF(reg_index), etqf);
1257
1258 adapter->etype_bitmap[reg_index] = false;
1259}
1260
1261static void igc_clear_vlan_prio_filter(struct igc_adapter *adapter,
1262 u16 vlan_tci)
1263{
1264 struct igc_hw *hw = &adapter->hw;
1265 u8 vlan_priority;
1266 u32 vlapqf;
1267
1268 vlan_priority = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
1269
1270 vlapqf = rd32(IGC_VLAPQF);
1271 vlapqf &= ~IGC_VLAPQF_P_VALID(vlan_priority);
1272 vlapqf &= ~IGC_VLAPQF_QUEUE_SEL(vlan_priority,
1273 IGC_VLAPQF_QUEUE_MASK);
1274
1275 wr32(IGC_VLAPQF, vlapqf);
1276}
1277
1278int igc_erase_filter(struct igc_adapter *adapter, struct igc_nfc_filter *input)
1279{
1280 if (input->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE)
1281 igc_clear_etype_filter_regs(adapter,
1282 input->etype_reg_index);
1283
1284 if (input->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI)
1285 igc_clear_vlan_prio_filter(adapter,
1286 ntohs(input->filter.vlan_tci));
1287
1288 if (input->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR)
1289 igc_del_mac_steering_filter(adapter, input->filter.src_addr,
1290 input->action,
1291 IGC_MAC_STATE_SRC_ADDR);
1292
1293 if (input->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR)
1294 igc_del_mac_steering_filter(adapter, input->filter.dst_addr,
1295 input->action, 0);
1296
1297 return 0;
1298}
1299
1300static int igc_update_ethtool_nfc_entry(struct igc_adapter *adapter,
1301 struct igc_nfc_filter *input,
1302 u16 sw_idx)
1303{
1304 struct igc_nfc_filter *rule, *parent;
1305 int err = -EINVAL;
1306
1307 parent = NULL;
1308 rule = NULL;
1309
1310 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
1311 /* hash found, or no matching entry */
1312 if (rule->sw_idx >= sw_idx)
1313 break;
1314 parent = rule;
1315 }
1316
1317 /* if there is an old rule occupying our place remove it */
1318 if (rule && rule->sw_idx == sw_idx) {
1319 if (!input)
1320 err = igc_erase_filter(adapter, rule);
1321
1322 hlist_del(&rule->nfc_node);
1323 kfree(rule);
1324 adapter->nfc_filter_count--;
1325 }
1326
1327 /* If no input this was a delete, err should be 0 if a rule was
1328 * successfully found and removed from the list else -EINVAL
1329 */
1330 if (!input)
1331 return err;
1332
1333 /* initialize node */
1334 INIT_HLIST_NODE(&input->nfc_node);
1335
1336 /* add filter to the list */
1337 if (parent)
1338 hlist_add_behind(&input->nfc_node, &parent->nfc_node);
1339 else
1340 hlist_add_head(&input->nfc_node, &adapter->nfc_filter_list);
1341
1342 /* update counts */
1343 adapter->nfc_filter_count++;
1344
1345 return 0;
1346}
1347
1348static int igc_add_ethtool_nfc_entry(struct igc_adapter *adapter,
1349 struct ethtool_rxnfc *cmd)
1350{
1351 struct net_device *netdev = adapter->netdev;
1352 struct ethtool_rx_flow_spec *fsp =
1353 (struct ethtool_rx_flow_spec *)&cmd->fs;
1354 struct igc_nfc_filter *input, *rule;
1355 int err = 0;
1356
1357 if (!(netdev->hw_features & NETIF_F_NTUPLE))
1358 return -EOPNOTSUPP;
1359
1360 /* Don't allow programming if the action is a queue greater than
1361 * the number of online Rx queues.
1362 */
1363 if (fsp->ring_cookie == RX_CLS_FLOW_DISC ||
1364 fsp->ring_cookie >= adapter->num_rx_queues) {
1365 dev_err(&adapter->pdev->dev, "ethtool -N: The specified action is invalid\n");
1366 return -EINVAL;
1367 }
1368
1369 /* Don't allow indexes to exist outside of available space */
1370 if (fsp->location >= IGC_MAX_RXNFC_FILTERS) {
1371 dev_err(&adapter->pdev->dev, "Location out of range\n");
1372 return -EINVAL;
1373 }
1374
1375 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW)
1376 return -EINVAL;
1377
1378 input = kzalloc(sizeof(*input), GFP_KERNEL);
1379 if (!input)
1380 return -ENOMEM;
1381
1382 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1383 input->filter.etype = fsp->h_u.ether_spec.h_proto;
1384 input->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1385 }
1386
1387 /* Only support matching addresses by the full mask */
1388 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1389 input->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1390 ether_addr_copy(input->filter.src_addr,
1391 fsp->h_u.ether_spec.h_source);
1392 }
1393
1394 /* Only support matching addresses by the full mask */
1395 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1396 input->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1397 ether_addr_copy(input->filter.dst_addr,
1398 fsp->h_u.ether_spec.h_dest);
1399 }
1400
1401 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1402 if (fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1403 err = -EINVAL;
1404 goto err_out;
1405 }
1406 input->filter.vlan_tci = fsp->h_ext.vlan_tci;
1407 input->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1408 }
1409
1410 input->action = fsp->ring_cookie;
1411 input->sw_idx = fsp->location;
1412
1413 spin_lock(&adapter->nfc_lock);
1414
1415 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
1416 if (!memcmp(&input->filter, &rule->filter,
1417 sizeof(input->filter))) {
1418 err = -EEXIST;
1419 dev_err(&adapter->pdev->dev,
1420 "ethtool: this filter is already set\n");
1421 goto err_out_w_lock;
1422 }
1423 }
1424
1425 err = igc_add_filter(adapter, input);
1426 if (err)
1427 goto err_out_w_lock;
1428
1429 igc_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
1430
1431 spin_unlock(&adapter->nfc_lock);
1432 return 0;
1433
1434err_out_w_lock:
1435 spin_unlock(&adapter->nfc_lock);
1436err_out:
1437 kfree(input);
1438 return err;
1439}
1440
1441static int igc_del_ethtool_nfc_entry(struct igc_adapter *adapter,
1442 struct ethtool_rxnfc *cmd)
1443{
1444 struct ethtool_rx_flow_spec *fsp =
1445 (struct ethtool_rx_flow_spec *)&cmd->fs;
1446 int err;
1447
1448 spin_lock(&adapter->nfc_lock);
1449 err = igc_update_ethtool_nfc_entry(adapter, NULL, fsp->location);
1450 spin_unlock(&adapter->nfc_lock);
1451
1452 return err;
1453}
1454
1455static int igc_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1456{
1457 struct igc_adapter *adapter = netdev_priv(dev);
1458 int ret = -EOPNOTSUPP;
1459
1460 switch (cmd->cmd) {
1461 case ETHTOOL_SRXFH:
1462 ret = igc_set_rss_hash_opt(adapter, cmd);
1463 break;
1464 case ETHTOOL_SRXCLSRLINS:
1465 ret = igc_add_ethtool_nfc_entry(adapter, cmd);
1466 break;
1467 case ETHTOOL_SRXCLSRLDEL:
1468 ret = igc_del_ethtool_nfc_entry(adapter, cmd);
1469 default:
1470 break;
1471 }
1472
1473 return ret;
1474}
1475
1476void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1477{
1478 struct igc_hw *hw = &adapter->hw;
1479 u32 reg = IGC_RETA(0);
1480 u32 shift = 0;
1481 int i = 0;
1482
1483 while (i < IGC_RETA_SIZE) {
1484 u32 val = 0;
1485 int j;
1486
1487 for (j = 3; j >= 0; j--) {
1488 val <<= 8;
1489 val |= adapter->rss_indir_tbl[i + j];
1490 }
1491
1492 wr32(reg, val << shift);
1493 reg += 4;
1494 i += 4;
1495 }
1496}
1497
1498static u32 igc_get_rxfh_indir_size(struct net_device *netdev)
1499{
1500 return IGC_RETA_SIZE;
1501}
1502
1503static int igc_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1504 u8 *hfunc)
1505{
1506 struct igc_adapter *adapter = netdev_priv(netdev);
1507 int i;
1508
1509 if (hfunc)
1510 *hfunc = ETH_RSS_HASH_TOP;
1511 if (!indir)
1512 return 0;
1513 for (i = 0; i < IGC_RETA_SIZE; i++)
1514 indir[i] = adapter->rss_indir_tbl[i];
1515
1516 return 0;
1517}
1518
1519static int igc_set_rxfh(struct net_device *netdev, const u32 *indir,
1520 const u8 *key, const u8 hfunc)
1521{
1522 struct igc_adapter *adapter = netdev_priv(netdev);
1523 u32 num_queues;
1524 int i;
1525
1526 /* We do not allow change in unsupported parameters */
1527 if (key ||
1528 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1529 return -EOPNOTSUPP;
1530 if (!indir)
1531 return 0;
1532
1533 num_queues = adapter->rss_queues;
1534
1535 /* Verify user input. */
1536 for (i = 0; i < IGC_RETA_SIZE; i++)
1537 if (indir[i] >= num_queues)
1538 return -EINVAL;
1539
1540 for (i = 0; i < IGC_RETA_SIZE; i++)
1541 adapter->rss_indir_tbl[i] = indir[i];
1542
1543 igc_write_rss_indir_tbl(adapter);
1544
1545 return 0;
1546}
1547
1548static unsigned int igc_max_channels(struct igc_adapter *adapter)
1549{
1550 return igc_get_max_rss_queues(adapter);
1551}
1552
1553static void igc_get_channels(struct net_device *netdev,
1554 struct ethtool_channels *ch)
1555{
1556 struct igc_adapter *adapter = netdev_priv(netdev);
1557
1558 /* Report maximum channels */
1559 ch->max_combined = igc_max_channels(adapter);
1560
1561 /* Report info for other vector */
1562 if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1563 ch->max_other = NON_Q_VECTORS;
1564 ch->other_count = NON_Q_VECTORS;
1565 }
1566
1567 ch->combined_count = adapter->rss_queues;
1568}
1569
1570static int igc_set_channels(struct net_device *netdev,
1571 struct ethtool_channels *ch)
1572{
1573 struct igc_adapter *adapter = netdev_priv(netdev);
1574 unsigned int count = ch->combined_count;
1575 unsigned int max_combined = 0;
1576
1577 /* Verify they are not requesting separate vectors */
1578 if (!count || ch->rx_count || ch->tx_count)
1579 return -EINVAL;
1580
1581 /* Verify other_count is valid and has not been changed */
1582 if (ch->other_count != NON_Q_VECTORS)
1583 return -EINVAL;
1584
1585 /* Verify the number of channels doesn't exceed hw limits */
1586 max_combined = igc_max_channels(adapter);
1587 if (count > max_combined)
1588 return -EINVAL;
1589
1590 if (count != adapter->rss_queues) {
1591 adapter->rss_queues = count;
1592 igc_set_flag_queue_pairs(adapter, max_combined);
1593
1594 /* Hardware has to reinitialize queues and interrupts to
1595 * match the new configuration.
1596 */
1597 return igc_reinit_queues(adapter);
1598 }
1599
1600 return 0;
1601}
1602
1603static u32 igc_get_priv_flags(struct net_device *netdev)
1604{
1605 struct igc_adapter *adapter = netdev_priv(netdev);
1606 u32 priv_flags = 0;
1607
1608 if (adapter->flags & IGC_FLAG_RX_LEGACY)
1609 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1610
1611 return priv_flags;
1612}
1613
1614static int igc_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1615{
1616 struct igc_adapter *adapter = netdev_priv(netdev);
1617 unsigned int flags = adapter->flags;
1618
1619 flags &= ~IGC_FLAG_RX_LEGACY;
1620 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1621 flags |= IGC_FLAG_RX_LEGACY;
1622
1623 if (flags != adapter->flags) {
1624 adapter->flags = flags;
1625
1626 /* reset interface to repopulate queues */
1627 if (netif_running(netdev))
1628 igc_reinit_locked(adapter);
1629 }
1630
1631 return 0;
1632}
1633
1634static int igc_ethtool_begin(struct net_device *netdev)
1635{
1636 struct igc_adapter *adapter = netdev_priv(netdev);
1637
1638 pm_runtime_get_sync(&adapter->pdev->dev);
1639 return 0;
1640}
1641
1642static void igc_ethtool_complete(struct net_device *netdev)
1643{
1644 struct igc_adapter *adapter = netdev_priv(netdev);
1645
1646 pm_runtime_put(&adapter->pdev->dev);
1647}
1648
1649static int igc_get_link_ksettings(struct net_device *netdev,
1650 struct ethtool_link_ksettings *cmd)
1651{
1652 struct igc_adapter *adapter = netdev_priv(netdev);
1653 struct igc_hw *hw = &adapter->hw;
1654 u32 status;
1655 u32 speed;
1656
1657 ethtool_link_ksettings_zero_link_mode(cmd, supported);
1658 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1659
1660 /* supported link modes */
1661 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1662 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1663 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1664 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1665 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1666 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1667
1668 /* twisted pair */
1669 cmd->base.port = PORT_TP;
1670 cmd->base.phy_address = hw->phy.addr;
1671
1672 /* advertising link modes */
1673 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1674 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1675 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1676 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1677 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1678 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1679
1680 /* set autoneg settings */
1681 if (hw->mac.autoneg == 1) {
1682 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1683 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1684 Autoneg);
1685 }
1686
1687 switch (hw->fc.requested_mode) {
1688 case igc_fc_full:
1689 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1690 break;
1691 case igc_fc_rx_pause:
1692 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1693 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1694 Asym_Pause);
1695 break;
1696 case igc_fc_tx_pause:
1697 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1698 Asym_Pause);
1699 break;
1700 default:
1701 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1702 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1703 Asym_Pause);
1704 }
1705
1706 status = rd32(IGC_STATUS);
1707
1708 if (status & IGC_STATUS_LU) {
1709 if (status & IGC_STATUS_SPEED_1000) {
1710 /* For I225, STATUS will indicate 1G speed in both
1711 * 1 Gbps and 2.5 Gbps link modes.
1712 * An additional bit is used
1713 * to differentiate between 1 Gbps and 2.5 Gbps.
1714 */
1715 if (hw->mac.type == igc_i225 &&
1716 (status & IGC_STATUS_SPEED_2500)) {
1717 speed = SPEED_2500;
1718 } else {
1719 speed = SPEED_1000;
1720 }
1721 } else if (status & IGC_STATUS_SPEED_100) {
1722 speed = SPEED_100;
1723 } else {
1724 speed = SPEED_10;
1725 }
1726 if ((status & IGC_STATUS_FD) ||
1727 hw->phy.media_type != igc_media_type_copper)
1728 cmd->base.duplex = DUPLEX_FULL;
1729 else
1730 cmd->base.duplex = DUPLEX_HALF;
1731 } else {
1732 speed = SPEED_UNKNOWN;
1733 cmd->base.duplex = DUPLEX_UNKNOWN;
1734 }
1735 cmd->base.speed = speed;
1736 if (hw->mac.autoneg)
1737 cmd->base.autoneg = AUTONEG_ENABLE;
1738 else
1739 cmd->base.autoneg = AUTONEG_DISABLE;
1740
1741 /* MDI-X => 2; MDI =>1; Invalid =>0 */
1742 if (hw->phy.media_type == igc_media_type_copper)
1743 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1744 ETH_TP_MDI;
1745 else
1746 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1747
1748 if (hw->phy.mdix == AUTO_ALL_MODES)
1749 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1750 else
1751 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1752
1753 return 0;
1754}
1755
1756static int igc_set_link_ksettings(struct net_device *netdev,
1757 const struct ethtool_link_ksettings *cmd)
1758{
1759 struct igc_adapter *adapter = netdev_priv(netdev);
1760 struct igc_hw *hw = &adapter->hw;
1761 u32 advertising;
1762
1763 /* When adapter in resetting mode, autoneg/speed/duplex
1764 * cannot be changed
1765 */
1766 if (igc_check_reset_block(hw)) {
1767 dev_err(&adapter->pdev->dev,
1768 "Cannot change link characteristics when reset is active.\n");
1769 return -EINVAL;
1770 }
1771
1772 /* MDI setting is only allowed when autoneg enabled because
1773 * some hardware doesn't allow MDI setting when speed or
1774 * duplex is forced.
1775 */
1776 if (cmd->base.eth_tp_mdix_ctrl) {
1777 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1778 cmd->base.autoneg != AUTONEG_ENABLE) {
1779 dev_err(&adapter->pdev->dev, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1780 return -EINVAL;
1781 }
1782 }
1783
1784 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1785 usleep_range(1000, 2000);
1786
1787 ethtool_convert_link_mode_to_legacy_u32(&advertising,
1788 cmd->link_modes.advertising);
1789
1790 if (cmd->base.autoneg == AUTONEG_ENABLE) {
1791 hw->mac.autoneg = 1;
1792 hw->phy.autoneg_advertised = advertising;
1793 if (adapter->fc_autoneg)
1794 hw->fc.requested_mode = igc_fc_default;
1795 } else {
1796 /* calling this overrides forced MDI setting */
1797 dev_info(&adapter->pdev->dev,
1798 "Force mode currently not supported\n");
1799 }
1800
1801 /* MDI-X => 2; MDI => 1; Auto => 3 */
1802 if (cmd->base.eth_tp_mdix_ctrl) {
1803 /* fix up the value for auto (3 => 0) as zero is mapped
1804 * internally to auto
1805 */
1806 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1807 hw->phy.mdix = AUTO_ALL_MODES;
1808 else
1809 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1810 }
1811
1812 /* reset the link */
1813 if (netif_running(adapter->netdev)) {
1814 igc_down(adapter);
1815 igc_up(adapter);
1816 } else {
1817 igc_reset(adapter);
1818 }
1819
1820 clear_bit(__IGC_RESETTING, &adapter->state);
1821
1822 return 0;
1823}
1824
1825static const struct ethtool_ops igc_ethtool_ops = {
1826 .get_drvinfo = igc_get_drvinfo,
1827 .get_regs_len = igc_get_regs_len,
1828 .get_regs = igc_get_regs,
1829 .get_msglevel = igc_get_msglevel,
1830 .set_msglevel = igc_set_msglevel,
1831 .nway_reset = igc_nway_reset,
1832 .get_link = igc_get_link,
1833 .get_eeprom_len = igc_get_eeprom_len,
1834 .get_eeprom = igc_get_eeprom,
1835 .set_eeprom = igc_set_eeprom,
1836 .get_ringparam = igc_get_ringparam,
1837 .set_ringparam = igc_set_ringparam,
1838 .get_pauseparam = igc_get_pauseparam,
1839 .set_pauseparam = igc_set_pauseparam,
1840 .get_strings = igc_get_strings,
1841 .get_sset_count = igc_get_sset_count,
1842 .get_ethtool_stats = igc_get_ethtool_stats,
1843 .get_coalesce = igc_get_coalesce,
1844 .set_coalesce = igc_set_coalesce,
1845 .get_rxnfc = igc_get_rxnfc,
1846 .set_rxnfc = igc_set_rxnfc,
1847 .get_rxfh_indir_size = igc_get_rxfh_indir_size,
1848 .get_rxfh = igc_get_rxfh,
1849 .set_rxfh = igc_set_rxfh,
1850 .get_channels = igc_get_channels,
1851 .set_channels = igc_set_channels,
1852 .get_priv_flags = igc_get_priv_flags,
1853 .set_priv_flags = igc_set_priv_flags,
1854 .begin = igc_ethtool_begin,
1855 .complete = igc_ethtool_complete,
1856 .get_link_ksettings = igc_get_link_ksettings,
1857 .set_link_ksettings = igc_set_link_ksettings,
1858};
1859
1860void igc_set_ethtool_ops(struct net_device *netdev)
1861{
1862 netdev->ethtool_ops = &igc_ethtool_ops;
1863}