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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#include <linux/mdio.h>
8
9#include "igc.h"
10#include "igc_diag.h"
11
12/* forward declaration */
13struct igc_stats {
14 char stat_string[ETH_GSTRING_LEN];
15 int sizeof_stat;
16 int stat_offset;
17};
18
19#define IGC_STAT(_name, _stat) { \
20 .stat_string = _name, \
21 .sizeof_stat = sizeof_field(struct igc_adapter, _stat), \
22 .stat_offset = offsetof(struct igc_adapter, _stat) \
23}
24
25static const struct igc_stats igc_gstrings_stats[] = {
26 IGC_STAT("rx_packets", stats.gprc),
27 IGC_STAT("tx_packets", stats.gptc),
28 IGC_STAT("rx_bytes", stats.gorc),
29 IGC_STAT("tx_bytes", stats.gotc),
30 IGC_STAT("rx_broadcast", stats.bprc),
31 IGC_STAT("tx_broadcast", stats.bptc),
32 IGC_STAT("rx_multicast", stats.mprc),
33 IGC_STAT("tx_multicast", stats.mptc),
34 IGC_STAT("multicast", stats.mprc),
35 IGC_STAT("collisions", stats.colc),
36 IGC_STAT("rx_crc_errors", stats.crcerrs),
37 IGC_STAT("rx_no_buffer_count", stats.rnbc),
38 IGC_STAT("rx_missed_errors", stats.mpc),
39 IGC_STAT("tx_aborted_errors", stats.ecol),
40 IGC_STAT("tx_carrier_errors", stats.tncrs),
41 IGC_STAT("tx_window_errors", stats.latecol),
42 IGC_STAT("tx_abort_late_coll", stats.latecol),
43 IGC_STAT("tx_deferred_ok", stats.dc),
44 IGC_STAT("tx_single_coll_ok", stats.scc),
45 IGC_STAT("tx_multi_coll_ok", stats.mcc),
46 IGC_STAT("tx_timeout_count", tx_timeout_count),
47 IGC_STAT("rx_long_length_errors", stats.roc),
48 IGC_STAT("rx_short_length_errors", stats.ruc),
49 IGC_STAT("rx_align_errors", stats.algnerrc),
50 IGC_STAT("tx_tcp_seg_good", stats.tsctc),
51 IGC_STAT("tx_tcp_seg_failed", stats.tsctfc),
52 IGC_STAT("rx_flow_control_xon", stats.xonrxc),
53 IGC_STAT("rx_flow_control_xoff", stats.xoffrxc),
54 IGC_STAT("tx_flow_control_xon", stats.xontxc),
55 IGC_STAT("tx_flow_control_xoff", stats.xofftxc),
56 IGC_STAT("rx_long_byte_count", stats.gorc),
57 IGC_STAT("tx_dma_out_of_sync", stats.doosync),
58 IGC_STAT("tx_smbus", stats.mgptc),
59 IGC_STAT("rx_smbus", stats.mgprc),
60 IGC_STAT("dropped_smbus", stats.mgpdc),
61 IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
62 IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
63 IGC_STAT("os2bmc_tx_by_host", stats.o2bspc),
64 IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc),
65 IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
66 IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
67 IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
68 IGC_STAT("tx_lpi_counter", stats.tlpic),
69 IGC_STAT("rx_lpi_counter", stats.rlpic),
70};
71
72#define IGC_NETDEV_STAT(_net_stat) { \
73 .stat_string = __stringify(_net_stat), \
74 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
75 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
76}
77
78static const struct igc_stats igc_gstrings_net_stats[] = {
79 IGC_NETDEV_STAT(rx_errors),
80 IGC_NETDEV_STAT(tx_errors),
81 IGC_NETDEV_STAT(tx_dropped),
82 IGC_NETDEV_STAT(rx_length_errors),
83 IGC_NETDEV_STAT(rx_over_errors),
84 IGC_NETDEV_STAT(rx_frame_errors),
85 IGC_NETDEV_STAT(rx_fifo_errors),
86 IGC_NETDEV_STAT(tx_fifo_errors),
87 IGC_NETDEV_STAT(tx_heartbeat_errors)
88};
89
90enum igc_diagnostics_results {
91 TEST_REG = 0,
92 TEST_EEP,
93 TEST_IRQ,
94 TEST_LOOP,
95 TEST_LINK
96};
97
98static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
99 [TEST_REG] = "Register test (offline)",
100 [TEST_EEP] = "Eeprom test (offline)",
101 [TEST_IRQ] = "Interrupt test (offline)",
102 [TEST_LOOP] = "Loopback test (offline)",
103 [TEST_LINK] = "Link test (on/offline)"
104};
105
106#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
107
108#define IGC_GLOBAL_STATS_LEN \
109 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
110#define IGC_NETDEV_STATS_LEN \
111 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
112#define IGC_RX_QUEUE_STATS_LEN \
113 (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
114#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
115#define IGC_QUEUE_STATS_LEN \
116 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
117 IGC_RX_QUEUE_STATS_LEN) + \
118 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
119 IGC_TX_QUEUE_STATS_LEN))
120#define IGC_STATS_LEN \
121 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
122
123static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
124#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0)
125 "legacy-rx",
126};
127
128#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
129
130static void igc_ethtool_get_drvinfo(struct net_device *netdev,
131 struct ethtool_drvinfo *drvinfo)
132{
133 struct igc_adapter *adapter = netdev_priv(netdev);
134 struct igc_hw *hw = &adapter->hw;
135 u16 nvm_version = 0;
136 u16 gphy_version;
137
138 strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
139
140 /* NVM image version is reported as firmware version for i225 device */
141 hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version);
142
143 /* gPHY firmware version is reported as PHY FW version */
144 gphy_version = igc_read_phy_fw_version(hw);
145
146 scnprintf(adapter->fw_version,
147 sizeof(adapter->fw_version),
148 "%x:%x",
149 nvm_version,
150 gphy_version);
151
152 strscpy(drvinfo->fw_version, adapter->fw_version,
153 sizeof(drvinfo->fw_version));
154
155 strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
156 sizeof(drvinfo->bus_info));
157
158 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
159}
160
161static int igc_ethtool_get_regs_len(struct net_device *netdev)
162{
163 return IGC_REGS_LEN * sizeof(u32);
164}
165
166static void igc_ethtool_get_regs(struct net_device *netdev,
167 struct ethtool_regs *regs, void *p)
168{
169 struct igc_adapter *adapter = netdev_priv(netdev);
170 struct igc_hw *hw = &adapter->hw;
171 u32 *regs_buff = p;
172 u8 i;
173
174 memset(p, 0, IGC_REGS_LEN * sizeof(u32));
175
176 regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
177
178 /* General Registers */
179 regs_buff[0] = rd32(IGC_CTRL);
180 regs_buff[1] = rd32(IGC_STATUS);
181 regs_buff[2] = rd32(IGC_CTRL_EXT);
182 regs_buff[3] = rd32(IGC_MDIC);
183 regs_buff[4] = rd32(IGC_CONNSW);
184
185 /* NVM Register */
186 regs_buff[5] = rd32(IGC_EECD);
187
188 /* Interrupt */
189 /* Reading EICS for EICR because they read the
190 * same but EICS does not clear on read
191 */
192 regs_buff[6] = rd32(IGC_EICS);
193 regs_buff[7] = rd32(IGC_EICS);
194 regs_buff[8] = rd32(IGC_EIMS);
195 regs_buff[9] = rd32(IGC_EIMC);
196 regs_buff[10] = rd32(IGC_EIAC);
197 regs_buff[11] = rd32(IGC_EIAM);
198 /* Reading ICS for ICR because they read the
199 * same but ICS does not clear on read
200 */
201 regs_buff[12] = rd32(IGC_ICS);
202 regs_buff[13] = rd32(IGC_ICS);
203 regs_buff[14] = rd32(IGC_IMS);
204 regs_buff[15] = rd32(IGC_IMC);
205 regs_buff[16] = rd32(IGC_IAC);
206 regs_buff[17] = rd32(IGC_IAM);
207
208 /* Flow Control */
209 regs_buff[18] = rd32(IGC_FCAL);
210 regs_buff[19] = rd32(IGC_FCAH);
211 regs_buff[20] = rd32(IGC_FCTTV);
212 regs_buff[21] = rd32(IGC_FCRTL);
213 regs_buff[22] = rd32(IGC_FCRTH);
214 regs_buff[23] = rd32(IGC_FCRTV);
215
216 /* Receive */
217 regs_buff[24] = rd32(IGC_RCTL);
218 regs_buff[25] = rd32(IGC_RXCSUM);
219 regs_buff[26] = rd32(IGC_RLPML);
220 regs_buff[27] = rd32(IGC_RFCTL);
221
222 /* Transmit */
223 regs_buff[28] = rd32(IGC_TCTL);
224 regs_buff[29] = rd32(IGC_TIPG);
225
226 /* Wake Up */
227
228 /* MAC */
229
230 /* Statistics */
231 regs_buff[30] = adapter->stats.crcerrs;
232 regs_buff[31] = adapter->stats.algnerrc;
233 regs_buff[32] = adapter->stats.symerrs;
234 regs_buff[33] = adapter->stats.rxerrc;
235 regs_buff[34] = adapter->stats.mpc;
236 regs_buff[35] = adapter->stats.scc;
237 regs_buff[36] = adapter->stats.ecol;
238 regs_buff[37] = adapter->stats.mcc;
239 regs_buff[38] = adapter->stats.latecol;
240 regs_buff[39] = adapter->stats.colc;
241 regs_buff[40] = adapter->stats.dc;
242 regs_buff[41] = adapter->stats.tncrs;
243 regs_buff[42] = adapter->stats.sec;
244 regs_buff[43] = adapter->stats.htdpmc;
245 regs_buff[44] = adapter->stats.rlec;
246 regs_buff[45] = adapter->stats.xonrxc;
247 regs_buff[46] = adapter->stats.xontxc;
248 regs_buff[47] = adapter->stats.xoffrxc;
249 regs_buff[48] = adapter->stats.xofftxc;
250 regs_buff[49] = adapter->stats.fcruc;
251 regs_buff[50] = adapter->stats.prc64;
252 regs_buff[51] = adapter->stats.prc127;
253 regs_buff[52] = adapter->stats.prc255;
254 regs_buff[53] = adapter->stats.prc511;
255 regs_buff[54] = adapter->stats.prc1023;
256 regs_buff[55] = adapter->stats.prc1522;
257 regs_buff[56] = adapter->stats.gprc;
258 regs_buff[57] = adapter->stats.bprc;
259 regs_buff[58] = adapter->stats.mprc;
260 regs_buff[59] = adapter->stats.gptc;
261 regs_buff[60] = adapter->stats.gorc;
262 regs_buff[61] = adapter->stats.gotc;
263 regs_buff[62] = adapter->stats.rnbc;
264 regs_buff[63] = adapter->stats.ruc;
265 regs_buff[64] = adapter->stats.rfc;
266 regs_buff[65] = adapter->stats.roc;
267 regs_buff[66] = adapter->stats.rjc;
268 regs_buff[67] = adapter->stats.mgprc;
269 regs_buff[68] = adapter->stats.mgpdc;
270 regs_buff[69] = adapter->stats.mgptc;
271 regs_buff[70] = adapter->stats.tor;
272 regs_buff[71] = adapter->stats.tot;
273 regs_buff[72] = adapter->stats.tpr;
274 regs_buff[73] = adapter->stats.tpt;
275 regs_buff[74] = adapter->stats.ptc64;
276 regs_buff[75] = adapter->stats.ptc127;
277 regs_buff[76] = adapter->stats.ptc255;
278 regs_buff[77] = adapter->stats.ptc511;
279 regs_buff[78] = adapter->stats.ptc1023;
280 regs_buff[79] = adapter->stats.ptc1522;
281 regs_buff[80] = adapter->stats.mptc;
282 regs_buff[81] = adapter->stats.bptc;
283 regs_buff[82] = adapter->stats.tsctc;
284 regs_buff[83] = adapter->stats.iac;
285 regs_buff[84] = adapter->stats.rpthc;
286 regs_buff[85] = adapter->stats.hgptc;
287 regs_buff[86] = adapter->stats.hgorc;
288 regs_buff[87] = adapter->stats.hgotc;
289 regs_buff[88] = adapter->stats.lenerrs;
290 regs_buff[89] = adapter->stats.scvpc;
291 regs_buff[90] = adapter->stats.hrmpc;
292
293 for (i = 0; i < 4; i++)
294 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
295 for (i = 0; i < 4; i++)
296 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
297 for (i = 0; i < 4; i++)
298 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
299 for (i = 0; i < 4; i++)
300 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
301 for (i = 0; i < 4; i++)
302 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
303 for (i = 0; i < 4; i++)
304 regs_buff[111 + i] = rd32(IGC_RDH(i));
305 for (i = 0; i < 4; i++)
306 regs_buff[115 + i] = rd32(IGC_RDT(i));
307 for (i = 0; i < 4; i++)
308 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
309
310 for (i = 0; i < 10; i++)
311 regs_buff[123 + i] = rd32(IGC_EITR(i));
312 for (i = 0; i < 16; i++)
313 regs_buff[139 + i] = rd32(IGC_RAL(i));
314 for (i = 0; i < 16; i++)
315 regs_buff[145 + i] = rd32(IGC_RAH(i));
316
317 for (i = 0; i < 4; i++)
318 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
319 for (i = 0; i < 4; i++)
320 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
321 for (i = 0; i < 4; i++)
322 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
323 for (i = 0; i < 4; i++)
324 regs_buff[160 + i] = rd32(IGC_TDH(i));
325 for (i = 0; i < 4; i++)
326 regs_buff[164 + i] = rd32(IGC_TDT(i));
327 for (i = 0; i < 4; i++)
328 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
329
330 /* XXX: Due to a bug few lines above, RAL and RAH registers are
331 * overwritten. To preserve the ABI, we write these registers again in
332 * regs_buff.
333 */
334 for (i = 0; i < 16; i++)
335 regs_buff[172 + i] = rd32(IGC_RAL(i));
336 for (i = 0; i < 16; i++)
337 regs_buff[188 + i] = rd32(IGC_RAH(i));
338
339 regs_buff[204] = rd32(IGC_VLANPQF);
340
341 for (i = 0; i < 8; i++)
342 regs_buff[205 + i] = rd32(IGC_ETQF(i));
343
344 regs_buff[213] = adapter->stats.tlpic;
345 regs_buff[214] = adapter->stats.rlpic;
346}
347
348static void igc_ethtool_get_wol(struct net_device *netdev,
349 struct ethtool_wolinfo *wol)
350{
351 struct igc_adapter *adapter = netdev_priv(netdev);
352
353 wol->wolopts = 0;
354
355 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
356 return;
357
358 wol->supported = WAKE_UCAST | WAKE_MCAST |
359 WAKE_BCAST | WAKE_MAGIC |
360 WAKE_PHY;
361
362 /* apply any specific unsupported masks here */
363 switch (adapter->hw.device_id) {
364 default:
365 break;
366 }
367
368 if (adapter->wol & IGC_WUFC_EX)
369 wol->wolopts |= WAKE_UCAST;
370 if (adapter->wol & IGC_WUFC_MC)
371 wol->wolopts |= WAKE_MCAST;
372 if (adapter->wol & IGC_WUFC_BC)
373 wol->wolopts |= WAKE_BCAST;
374 if (adapter->wol & IGC_WUFC_MAG)
375 wol->wolopts |= WAKE_MAGIC;
376 if (adapter->wol & IGC_WUFC_LNKC)
377 wol->wolopts |= WAKE_PHY;
378}
379
380static int igc_ethtool_set_wol(struct net_device *netdev,
381 struct ethtool_wolinfo *wol)
382{
383 struct igc_adapter *adapter = netdev_priv(netdev);
384
385 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
386 return -EOPNOTSUPP;
387
388 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
389 return wol->wolopts ? -EOPNOTSUPP : 0;
390
391 /* these settings will always override what we currently have */
392 adapter->wol = 0;
393
394 if (wol->wolopts & WAKE_UCAST)
395 adapter->wol |= IGC_WUFC_EX;
396 if (wol->wolopts & WAKE_MCAST)
397 adapter->wol |= IGC_WUFC_MC;
398 if (wol->wolopts & WAKE_BCAST)
399 adapter->wol |= IGC_WUFC_BC;
400 if (wol->wolopts & WAKE_MAGIC)
401 adapter->wol |= IGC_WUFC_MAG;
402 if (wol->wolopts & WAKE_PHY)
403 adapter->wol |= IGC_WUFC_LNKC;
404 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
405
406 return 0;
407}
408
409static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
410{
411 struct igc_adapter *adapter = netdev_priv(netdev);
412
413 return adapter->msg_enable;
414}
415
416static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
417{
418 struct igc_adapter *adapter = netdev_priv(netdev);
419
420 adapter->msg_enable = data;
421}
422
423static int igc_ethtool_nway_reset(struct net_device *netdev)
424{
425 struct igc_adapter *adapter = netdev_priv(netdev);
426
427 if (netif_running(netdev))
428 igc_reinit_locked(adapter);
429 return 0;
430}
431
432static u32 igc_ethtool_get_link(struct net_device *netdev)
433{
434 struct igc_adapter *adapter = netdev_priv(netdev);
435 struct igc_mac_info *mac = &adapter->hw.mac;
436
437 /* If the link is not reported up to netdev, interrupts are disabled,
438 * and so the physical link state may have changed since we last
439 * looked. Set get_link_status to make sure that the true link
440 * state is interrogated, rather than pulling a cached and possibly
441 * stale link state from the driver.
442 */
443 if (!netif_carrier_ok(netdev))
444 mac->get_link_status = 1;
445
446 return igc_has_link(adapter);
447}
448
449static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
450{
451 struct igc_adapter *adapter = netdev_priv(netdev);
452
453 return adapter->hw.nvm.word_size * 2;
454}
455
456static int igc_ethtool_get_eeprom(struct net_device *netdev,
457 struct ethtool_eeprom *eeprom, u8 *bytes)
458{
459 struct igc_adapter *adapter = netdev_priv(netdev);
460 struct igc_hw *hw = &adapter->hw;
461 int first_word, last_word;
462 u16 *eeprom_buff;
463 int ret_val = 0;
464 u16 i;
465
466 if (eeprom->len == 0)
467 return -EINVAL;
468
469 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
470
471 first_word = eeprom->offset >> 1;
472 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
473
474 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
475 GFP_KERNEL);
476 if (!eeprom_buff)
477 return -ENOMEM;
478
479 if (hw->nvm.type == igc_nvm_eeprom_spi) {
480 ret_val = hw->nvm.ops.read(hw, first_word,
481 last_word - first_word + 1,
482 eeprom_buff);
483 } else {
484 for (i = 0; i < last_word - first_word + 1; i++) {
485 ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
486 &eeprom_buff[i]);
487 if (ret_val)
488 break;
489 }
490 }
491
492 /* Device's eeprom is always little-endian, word addressable */
493 for (i = 0; i < last_word - first_word + 1; i++)
494 le16_to_cpus(&eeprom_buff[i]);
495
496 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
497 eeprom->len);
498 kfree(eeprom_buff);
499
500 return ret_val;
501}
502
503static int igc_ethtool_set_eeprom(struct net_device *netdev,
504 struct ethtool_eeprom *eeprom, u8 *bytes)
505{
506 struct igc_adapter *adapter = netdev_priv(netdev);
507 struct igc_hw *hw = &adapter->hw;
508 int max_len, first_word, last_word, ret_val = 0;
509 u16 *eeprom_buff;
510 void *ptr;
511 u16 i;
512
513 if (eeprom->len == 0)
514 return -EOPNOTSUPP;
515
516 if (hw->mac.type >= igc_i225 &&
517 !igc_get_flash_presence_i225(hw)) {
518 return -EOPNOTSUPP;
519 }
520
521 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
522 return -EFAULT;
523
524 max_len = hw->nvm.word_size * 2;
525
526 first_word = eeprom->offset >> 1;
527 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
528 eeprom_buff = kmalloc(max_len, GFP_KERNEL);
529 if (!eeprom_buff)
530 return -ENOMEM;
531
532 ptr = (void *)eeprom_buff;
533
534 if (eeprom->offset & 1) {
535 /* need read/modify/write of first changed EEPROM word
536 * only the second byte of the word is being modified
537 */
538 ret_val = hw->nvm.ops.read(hw, first_word, 1,
539 &eeprom_buff[0]);
540 ptr++;
541 }
542 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
543 /* need read/modify/write of last changed EEPROM word
544 * only the first byte of the word is being modified
545 */
546 ret_val = hw->nvm.ops.read(hw, last_word, 1,
547 &eeprom_buff[last_word - first_word]);
548 }
549
550 /* Device's eeprom is always little-endian, word addressable */
551 for (i = 0; i < last_word - first_word + 1; i++)
552 le16_to_cpus(&eeprom_buff[i]);
553
554 memcpy(ptr, bytes, eeprom->len);
555
556 for (i = 0; i < last_word - first_word + 1; i++)
557 cpu_to_le16s(&eeprom_buff[i]);
558
559 ret_val = hw->nvm.ops.write(hw, first_word,
560 last_word - first_word + 1, eeprom_buff);
561
562 /* Update the checksum if nvm write succeeded */
563 if (ret_val == 0)
564 hw->nvm.ops.update(hw);
565
566 kfree(eeprom_buff);
567 return ret_val;
568}
569
570static void igc_ethtool_get_ringparam(struct net_device *netdev,
571 struct ethtool_ringparam *ring)
572{
573 struct igc_adapter *adapter = netdev_priv(netdev);
574
575 ring->rx_max_pending = IGC_MAX_RXD;
576 ring->tx_max_pending = IGC_MAX_TXD;
577 ring->rx_pending = adapter->rx_ring_count;
578 ring->tx_pending = adapter->tx_ring_count;
579}
580
581static int igc_ethtool_set_ringparam(struct net_device *netdev,
582 struct ethtool_ringparam *ring)
583{
584 struct igc_adapter *adapter = netdev_priv(netdev);
585 struct igc_ring *temp_ring;
586 u16 new_rx_count, new_tx_count;
587 int i, err = 0;
588
589 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
590 return -EINVAL;
591
592 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
593 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
594 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
595
596 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
597 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
598 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
599
600 if (new_tx_count == adapter->tx_ring_count &&
601 new_rx_count == adapter->rx_ring_count) {
602 /* nothing to do */
603 return 0;
604 }
605
606 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
607 usleep_range(1000, 2000);
608
609 if (!netif_running(adapter->netdev)) {
610 for (i = 0; i < adapter->num_tx_queues; i++)
611 adapter->tx_ring[i]->count = new_tx_count;
612 for (i = 0; i < adapter->num_rx_queues; i++)
613 adapter->rx_ring[i]->count = new_rx_count;
614 adapter->tx_ring_count = new_tx_count;
615 adapter->rx_ring_count = new_rx_count;
616 goto clear_reset;
617 }
618
619 if (adapter->num_tx_queues > adapter->num_rx_queues)
620 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
621 adapter->num_tx_queues));
622 else
623 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
624 adapter->num_rx_queues));
625
626 if (!temp_ring) {
627 err = -ENOMEM;
628 goto clear_reset;
629 }
630
631 igc_down(adapter);
632
633 /* We can't just free everything and then setup again,
634 * because the ISRs in MSI-X mode get passed pointers
635 * to the Tx and Rx ring structs.
636 */
637 if (new_tx_count != adapter->tx_ring_count) {
638 for (i = 0; i < adapter->num_tx_queues; i++) {
639 memcpy(&temp_ring[i], adapter->tx_ring[i],
640 sizeof(struct igc_ring));
641
642 temp_ring[i].count = new_tx_count;
643 err = igc_setup_tx_resources(&temp_ring[i]);
644 if (err) {
645 while (i) {
646 i--;
647 igc_free_tx_resources(&temp_ring[i]);
648 }
649 goto err_setup;
650 }
651 }
652
653 for (i = 0; i < adapter->num_tx_queues; i++) {
654 igc_free_tx_resources(adapter->tx_ring[i]);
655
656 memcpy(adapter->tx_ring[i], &temp_ring[i],
657 sizeof(struct igc_ring));
658 }
659
660 adapter->tx_ring_count = new_tx_count;
661 }
662
663 if (new_rx_count != adapter->rx_ring_count) {
664 for (i = 0; i < adapter->num_rx_queues; i++) {
665 memcpy(&temp_ring[i], adapter->rx_ring[i],
666 sizeof(struct igc_ring));
667
668 temp_ring[i].count = new_rx_count;
669 err = igc_setup_rx_resources(&temp_ring[i]);
670 if (err) {
671 while (i) {
672 i--;
673 igc_free_rx_resources(&temp_ring[i]);
674 }
675 goto err_setup;
676 }
677 }
678
679 for (i = 0; i < adapter->num_rx_queues; i++) {
680 igc_free_rx_resources(adapter->rx_ring[i]);
681
682 memcpy(adapter->rx_ring[i], &temp_ring[i],
683 sizeof(struct igc_ring));
684 }
685
686 adapter->rx_ring_count = new_rx_count;
687 }
688err_setup:
689 igc_up(adapter);
690 vfree(temp_ring);
691clear_reset:
692 clear_bit(__IGC_RESETTING, &adapter->state);
693 return err;
694}
695
696static void igc_ethtool_get_pauseparam(struct net_device *netdev,
697 struct ethtool_pauseparam *pause)
698{
699 struct igc_adapter *adapter = netdev_priv(netdev);
700 struct igc_hw *hw = &adapter->hw;
701
702 pause->autoneg =
703 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
704
705 if (hw->fc.current_mode == igc_fc_rx_pause) {
706 pause->rx_pause = 1;
707 } else if (hw->fc.current_mode == igc_fc_tx_pause) {
708 pause->tx_pause = 1;
709 } else if (hw->fc.current_mode == igc_fc_full) {
710 pause->rx_pause = 1;
711 pause->tx_pause = 1;
712 }
713}
714
715static int igc_ethtool_set_pauseparam(struct net_device *netdev,
716 struct ethtool_pauseparam *pause)
717{
718 struct igc_adapter *adapter = netdev_priv(netdev);
719 struct igc_hw *hw = &adapter->hw;
720 int retval = 0;
721
722 adapter->fc_autoneg = pause->autoneg;
723
724 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
725 usleep_range(1000, 2000);
726
727 if (adapter->fc_autoneg == AUTONEG_ENABLE) {
728 hw->fc.requested_mode = igc_fc_default;
729 if (netif_running(adapter->netdev)) {
730 igc_down(adapter);
731 igc_up(adapter);
732 } else {
733 igc_reset(adapter);
734 }
735 } else {
736 if (pause->rx_pause && pause->tx_pause)
737 hw->fc.requested_mode = igc_fc_full;
738 else if (pause->rx_pause && !pause->tx_pause)
739 hw->fc.requested_mode = igc_fc_rx_pause;
740 else if (!pause->rx_pause && pause->tx_pause)
741 hw->fc.requested_mode = igc_fc_tx_pause;
742 else if (!pause->rx_pause && !pause->tx_pause)
743 hw->fc.requested_mode = igc_fc_none;
744
745 hw->fc.current_mode = hw->fc.requested_mode;
746
747 retval = ((hw->phy.media_type == igc_media_type_copper) ?
748 igc_force_mac_fc(hw) : igc_setup_link(hw));
749 }
750
751 clear_bit(__IGC_RESETTING, &adapter->state);
752 return retval;
753}
754
755static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
756 u8 *data)
757{
758 struct igc_adapter *adapter = netdev_priv(netdev);
759 u8 *p = data;
760 int i;
761
762 switch (stringset) {
763 case ETH_SS_TEST:
764 memcpy(data, *igc_gstrings_test,
765 IGC_TEST_LEN * ETH_GSTRING_LEN);
766 break;
767 case ETH_SS_STATS:
768 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++)
769 ethtool_sprintf(&p, igc_gstrings_stats[i].stat_string);
770 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
771 ethtool_sprintf(&p,
772 igc_gstrings_net_stats[i].stat_string);
773 for (i = 0; i < adapter->num_tx_queues; i++) {
774 ethtool_sprintf(&p, "tx_queue_%u_packets", i);
775 ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
776 ethtool_sprintf(&p, "tx_queue_%u_restart", i);
777 }
778 for (i = 0; i < adapter->num_rx_queues; i++) {
779 ethtool_sprintf(&p, "rx_queue_%u_packets", i);
780 ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
781 ethtool_sprintf(&p, "rx_queue_%u_drops", i);
782 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);
783 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);
784 }
785 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
786 break;
787 case ETH_SS_PRIV_FLAGS:
788 memcpy(data, igc_priv_flags_strings,
789 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
790 break;
791 }
792}
793
794static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
795{
796 switch (sset) {
797 case ETH_SS_STATS:
798 return IGC_STATS_LEN;
799 case ETH_SS_TEST:
800 return IGC_TEST_LEN;
801 case ETH_SS_PRIV_FLAGS:
802 return IGC_PRIV_FLAGS_STR_LEN;
803 default:
804 return -ENOTSUPP;
805 }
806}
807
808static void igc_ethtool_get_stats(struct net_device *netdev,
809 struct ethtool_stats *stats, u64 *data)
810{
811 struct igc_adapter *adapter = netdev_priv(netdev);
812 struct rtnl_link_stats64 *net_stats = &adapter->stats64;
813 unsigned int start;
814 struct igc_ring *ring;
815 int i, j;
816 char *p;
817
818 spin_lock(&adapter->stats64_lock);
819 igc_update_stats(adapter);
820
821 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
822 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
823 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
824 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
825 }
826 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
827 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
828 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
829 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
830 }
831 for (j = 0; j < adapter->num_tx_queues; j++) {
832 u64 restart2;
833
834 ring = adapter->tx_ring[j];
835 do {
836 start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
837 data[i] = ring->tx_stats.packets;
838 data[i + 1] = ring->tx_stats.bytes;
839 data[i + 2] = ring->tx_stats.restart_queue;
840 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
841 do {
842 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
843 restart2 = ring->tx_stats.restart_queue2;
844 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
845 data[i + 2] += restart2;
846
847 i += IGC_TX_QUEUE_STATS_LEN;
848 }
849 for (j = 0; j < adapter->num_rx_queues; j++) {
850 ring = adapter->rx_ring[j];
851 do {
852 start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
853 data[i] = ring->rx_stats.packets;
854 data[i + 1] = ring->rx_stats.bytes;
855 data[i + 2] = ring->rx_stats.drops;
856 data[i + 3] = ring->rx_stats.csum_err;
857 data[i + 4] = ring->rx_stats.alloc_failed;
858 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
859 i += IGC_RX_QUEUE_STATS_LEN;
860 }
861 spin_unlock(&adapter->stats64_lock);
862}
863
864static int igc_ethtool_get_coalesce(struct net_device *netdev,
865 struct ethtool_coalesce *ec)
866{
867 struct igc_adapter *adapter = netdev_priv(netdev);
868
869 if (adapter->rx_itr_setting <= 3)
870 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
871 else
872 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
873
874 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
875 if (adapter->tx_itr_setting <= 3)
876 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
877 else
878 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
879 }
880
881 return 0;
882}
883
884static int igc_ethtool_set_coalesce(struct net_device *netdev,
885 struct ethtool_coalesce *ec)
886{
887 struct igc_adapter *adapter = netdev_priv(netdev);
888 int i;
889
890 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
891 (ec->rx_coalesce_usecs > 3 &&
892 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
893 ec->rx_coalesce_usecs == 2)
894 return -EINVAL;
895
896 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
897 (ec->tx_coalesce_usecs > 3 &&
898 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
899 ec->tx_coalesce_usecs == 2)
900 return -EINVAL;
901
902 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
903 return -EINVAL;
904
905 /* If ITR is disabled, disable DMAC */
906 if (ec->rx_coalesce_usecs == 0) {
907 if (adapter->flags & IGC_FLAG_DMAC)
908 adapter->flags &= ~IGC_FLAG_DMAC;
909 }
910
911 /* convert to rate of irq's per second */
912 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
913 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
914 else
915 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
916
917 /* convert to rate of irq's per second */
918 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
919 adapter->tx_itr_setting = adapter->rx_itr_setting;
920 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
921 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
922 else
923 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
924
925 for (i = 0; i < adapter->num_q_vectors; i++) {
926 struct igc_q_vector *q_vector = adapter->q_vector[i];
927
928 q_vector->tx.work_limit = adapter->tx_work_limit;
929 if (q_vector->rx.ring)
930 q_vector->itr_val = adapter->rx_itr_setting;
931 else
932 q_vector->itr_val = adapter->tx_itr_setting;
933 if (q_vector->itr_val && q_vector->itr_val <= 3)
934 q_vector->itr_val = IGC_START_ITR;
935 q_vector->set_itr = 1;
936 }
937
938 return 0;
939}
940
941#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
942static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
943 struct ethtool_rxnfc *cmd)
944{
945 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
946 struct igc_nfc_rule *rule = NULL;
947
948 cmd->data = IGC_MAX_RXNFC_RULES;
949
950 mutex_lock(&adapter->nfc_rule_lock);
951
952 rule = igc_get_nfc_rule(adapter, fsp->location);
953 if (!rule)
954 goto out;
955
956 fsp->flow_type = ETHER_FLOW;
957 fsp->ring_cookie = rule->action;
958
959 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
960 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
961 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
962 }
963
964 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
965 fsp->flow_type |= FLOW_EXT;
966 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
967 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
968 }
969
970 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
971 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
972 rule->filter.dst_addr);
973 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
974 }
975
976 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
977 ether_addr_copy(fsp->h_u.ether_spec.h_source,
978 rule->filter.src_addr);
979 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
980 }
981
982 mutex_unlock(&adapter->nfc_rule_lock);
983 return 0;
984
985out:
986 mutex_unlock(&adapter->nfc_rule_lock);
987 return -EINVAL;
988}
989
990static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
991 struct ethtool_rxnfc *cmd,
992 u32 *rule_locs)
993{
994 struct igc_nfc_rule *rule;
995 int cnt = 0;
996
997 cmd->data = IGC_MAX_RXNFC_RULES;
998
999 mutex_lock(&adapter->nfc_rule_lock);
1000
1001 list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1002 if (cnt == cmd->rule_cnt) {
1003 mutex_unlock(&adapter->nfc_rule_lock);
1004 return -EMSGSIZE;
1005 }
1006 rule_locs[cnt] = rule->location;
1007 cnt++;
1008 }
1009
1010 mutex_unlock(&adapter->nfc_rule_lock);
1011
1012 cmd->rule_cnt = cnt;
1013
1014 return 0;
1015}
1016
1017static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1018 struct ethtool_rxnfc *cmd)
1019{
1020 cmd->data = 0;
1021
1022 /* Report default options for RSS on igc */
1023 switch (cmd->flow_type) {
1024 case TCP_V4_FLOW:
1025 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1026 fallthrough;
1027 case UDP_V4_FLOW:
1028 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1029 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1030 fallthrough;
1031 case SCTP_V4_FLOW:
1032 case AH_ESP_V4_FLOW:
1033 case AH_V4_FLOW:
1034 case ESP_V4_FLOW:
1035 case IPV4_FLOW:
1036 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1037 break;
1038 case TCP_V6_FLOW:
1039 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1040 fallthrough;
1041 case UDP_V6_FLOW:
1042 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1043 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1044 fallthrough;
1045 case SCTP_V6_FLOW:
1046 case AH_ESP_V6_FLOW:
1047 case AH_V6_FLOW:
1048 case ESP_V6_FLOW:
1049 case IPV6_FLOW:
1050 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1051 break;
1052 default:
1053 return -EINVAL;
1054 }
1055
1056 return 0;
1057}
1058
1059static int igc_ethtool_get_rxnfc(struct net_device *dev,
1060 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1061{
1062 struct igc_adapter *adapter = netdev_priv(dev);
1063
1064 switch (cmd->cmd) {
1065 case ETHTOOL_GRXRINGS:
1066 cmd->data = adapter->num_rx_queues;
1067 return 0;
1068 case ETHTOOL_GRXCLSRLCNT:
1069 cmd->rule_cnt = adapter->nfc_rule_count;
1070 return 0;
1071 case ETHTOOL_GRXCLSRULE:
1072 return igc_ethtool_get_nfc_rule(adapter, cmd);
1073 case ETHTOOL_GRXCLSRLALL:
1074 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1075 case ETHTOOL_GRXFH:
1076 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1077 default:
1078 return -EOPNOTSUPP;
1079 }
1080}
1081
1082#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1083 IGC_FLAG_RSS_FIELD_IPV6_UDP)
1084static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1085 struct ethtool_rxnfc *nfc)
1086{
1087 u32 flags = adapter->flags;
1088
1089 /* RSS does not support anything other than hashing
1090 * to queues on src and dst IPs and ports
1091 */
1092 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1093 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1094 return -EINVAL;
1095
1096 switch (nfc->flow_type) {
1097 case TCP_V4_FLOW:
1098 case TCP_V6_FLOW:
1099 if (!(nfc->data & RXH_IP_SRC) ||
1100 !(nfc->data & RXH_IP_DST) ||
1101 !(nfc->data & RXH_L4_B_0_1) ||
1102 !(nfc->data & RXH_L4_B_2_3))
1103 return -EINVAL;
1104 break;
1105 case UDP_V4_FLOW:
1106 if (!(nfc->data & RXH_IP_SRC) ||
1107 !(nfc->data & RXH_IP_DST))
1108 return -EINVAL;
1109 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1110 case 0:
1111 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1112 break;
1113 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1114 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1115 break;
1116 default:
1117 return -EINVAL;
1118 }
1119 break;
1120 case UDP_V6_FLOW:
1121 if (!(nfc->data & RXH_IP_SRC) ||
1122 !(nfc->data & RXH_IP_DST))
1123 return -EINVAL;
1124 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1125 case 0:
1126 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1127 break;
1128 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1129 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1130 break;
1131 default:
1132 return -EINVAL;
1133 }
1134 break;
1135 case AH_ESP_V4_FLOW:
1136 case AH_V4_FLOW:
1137 case ESP_V4_FLOW:
1138 case SCTP_V4_FLOW:
1139 case AH_ESP_V6_FLOW:
1140 case AH_V6_FLOW:
1141 case ESP_V6_FLOW:
1142 case SCTP_V6_FLOW:
1143 if (!(nfc->data & RXH_IP_SRC) ||
1144 !(nfc->data & RXH_IP_DST) ||
1145 (nfc->data & RXH_L4_B_0_1) ||
1146 (nfc->data & RXH_L4_B_2_3))
1147 return -EINVAL;
1148 break;
1149 default:
1150 return -EINVAL;
1151 }
1152
1153 /* if we changed something we need to update flags */
1154 if (flags != adapter->flags) {
1155 struct igc_hw *hw = &adapter->hw;
1156 u32 mrqc = rd32(IGC_MRQC);
1157
1158 if ((flags & UDP_RSS_FLAGS) &&
1159 !(adapter->flags & UDP_RSS_FLAGS))
1160 netdev_err(adapter->netdev,
1161 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1162
1163 adapter->flags = flags;
1164
1165 /* Perform hash on these packet types */
1166 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1167 IGC_MRQC_RSS_FIELD_IPV4_TCP |
1168 IGC_MRQC_RSS_FIELD_IPV6 |
1169 IGC_MRQC_RSS_FIELD_IPV6_TCP;
1170
1171 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1172 IGC_MRQC_RSS_FIELD_IPV6_UDP);
1173
1174 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1175 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1176
1177 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1178 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1179
1180 wr32(IGC_MRQC, mrqc);
1181 }
1182
1183 return 0;
1184}
1185
1186static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1187 const struct ethtool_rx_flow_spec *fsp)
1188{
1189 INIT_LIST_HEAD(&rule->list);
1190
1191 rule->action = fsp->ring_cookie;
1192 rule->location = fsp->location;
1193
1194 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1195 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1196 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1197 }
1198
1199 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1200 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1201 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1202 }
1203
1204 /* Both source and destination address filters only support the full
1205 * mask.
1206 */
1207 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1208 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1209 ether_addr_copy(rule->filter.src_addr,
1210 fsp->h_u.ether_spec.h_source);
1211 }
1212
1213 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1214 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1215 ether_addr_copy(rule->filter.dst_addr,
1216 fsp->h_u.ether_spec.h_dest);
1217 }
1218}
1219
1220/**
1221 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1222 * @adapter: Pointer to adapter
1223 * @rule: Rule under evaluation
1224 *
1225 * The driver doesn't support rules with multiple matches so if more than
1226 * one bit in filter flags is set, @rule is considered invalid.
1227 *
1228 * Also, if there is already another rule with the same filter in a different
1229 * location, @rule is considered invalid.
1230 *
1231 * Context: Expects adapter->nfc_rule_lock to be held by caller.
1232 *
1233 * Return: 0 in case of success, negative errno code otherwise.
1234 */
1235static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1236 struct igc_nfc_rule *rule)
1237{
1238 struct net_device *dev = adapter->netdev;
1239 u8 flags = rule->filter.match_flags;
1240 struct igc_nfc_rule *tmp;
1241
1242 if (!flags) {
1243 netdev_dbg(dev, "Rule with no match\n");
1244 return -EINVAL;
1245 }
1246
1247 if (flags & (flags - 1)) {
1248 netdev_dbg(dev, "Rule with multiple matches not supported\n");
1249 return -EOPNOTSUPP;
1250 }
1251
1252 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1253 if (!memcmp(&rule->filter, &tmp->filter,
1254 sizeof(rule->filter)) &&
1255 tmp->location != rule->location) {
1256 netdev_dbg(dev, "Rule already exists\n");
1257 return -EEXIST;
1258 }
1259 }
1260
1261 return 0;
1262}
1263
1264static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1265 struct ethtool_rxnfc *cmd)
1266{
1267 struct net_device *netdev = adapter->netdev;
1268 struct ethtool_rx_flow_spec *fsp =
1269 (struct ethtool_rx_flow_spec *)&cmd->fs;
1270 struct igc_nfc_rule *rule, *old_rule;
1271 int err;
1272
1273 if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1274 netdev_dbg(netdev, "N-tuple filters disabled\n");
1275 return -EOPNOTSUPP;
1276 }
1277
1278 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1279 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1280 return -EOPNOTSUPP;
1281 }
1282
1283 if ((fsp->flow_type & FLOW_EXT) &&
1284 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1285 netdev_dbg(netdev, "VLAN mask not supported\n");
1286 return -EOPNOTSUPP;
1287 }
1288
1289 if (fsp->ring_cookie >= adapter->num_rx_queues) {
1290 netdev_dbg(netdev, "Invalid action\n");
1291 return -EINVAL;
1292 }
1293
1294 if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1295 netdev_dbg(netdev, "Invalid location\n");
1296 return -EINVAL;
1297 }
1298
1299 rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1300 if (!rule)
1301 return -ENOMEM;
1302
1303 igc_ethtool_init_nfc_rule(rule, fsp);
1304
1305 mutex_lock(&adapter->nfc_rule_lock);
1306
1307 err = igc_ethtool_check_nfc_rule(adapter, rule);
1308 if (err)
1309 goto err;
1310
1311 old_rule = igc_get_nfc_rule(adapter, fsp->location);
1312 if (old_rule)
1313 igc_del_nfc_rule(adapter, old_rule);
1314
1315 err = igc_add_nfc_rule(adapter, rule);
1316 if (err)
1317 goto err;
1318
1319 mutex_unlock(&adapter->nfc_rule_lock);
1320 return 0;
1321
1322err:
1323 mutex_unlock(&adapter->nfc_rule_lock);
1324 kfree(rule);
1325 return err;
1326}
1327
1328static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1329 struct ethtool_rxnfc *cmd)
1330{
1331 struct ethtool_rx_flow_spec *fsp =
1332 (struct ethtool_rx_flow_spec *)&cmd->fs;
1333 struct igc_nfc_rule *rule;
1334
1335 mutex_lock(&adapter->nfc_rule_lock);
1336
1337 rule = igc_get_nfc_rule(adapter, fsp->location);
1338 if (!rule) {
1339 mutex_unlock(&adapter->nfc_rule_lock);
1340 return -EINVAL;
1341 }
1342
1343 igc_del_nfc_rule(adapter, rule);
1344
1345 mutex_unlock(&adapter->nfc_rule_lock);
1346 return 0;
1347}
1348
1349static int igc_ethtool_set_rxnfc(struct net_device *dev,
1350 struct ethtool_rxnfc *cmd)
1351{
1352 struct igc_adapter *adapter = netdev_priv(dev);
1353
1354 switch (cmd->cmd) {
1355 case ETHTOOL_SRXFH:
1356 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1357 case ETHTOOL_SRXCLSRLINS:
1358 return igc_ethtool_add_nfc_rule(adapter, cmd);
1359 case ETHTOOL_SRXCLSRLDEL:
1360 return igc_ethtool_del_nfc_rule(adapter, cmd);
1361 default:
1362 return -EOPNOTSUPP;
1363 }
1364}
1365
1366void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1367{
1368 struct igc_hw *hw = &adapter->hw;
1369 u32 reg = IGC_RETA(0);
1370 u32 shift = 0;
1371 int i = 0;
1372
1373 while (i < IGC_RETA_SIZE) {
1374 u32 val = 0;
1375 int j;
1376
1377 for (j = 3; j >= 0; j--) {
1378 val <<= 8;
1379 val |= adapter->rss_indir_tbl[i + j];
1380 }
1381
1382 wr32(reg, val << shift);
1383 reg += 4;
1384 i += 4;
1385 }
1386}
1387
1388static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1389{
1390 return IGC_RETA_SIZE;
1391}
1392
1393static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1394 u8 *hfunc)
1395{
1396 struct igc_adapter *adapter = netdev_priv(netdev);
1397 int i;
1398
1399 if (hfunc)
1400 *hfunc = ETH_RSS_HASH_TOP;
1401 if (!indir)
1402 return 0;
1403 for (i = 0; i < IGC_RETA_SIZE; i++)
1404 indir[i] = adapter->rss_indir_tbl[i];
1405
1406 return 0;
1407}
1408
1409static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1410 const u8 *key, const u8 hfunc)
1411{
1412 struct igc_adapter *adapter = netdev_priv(netdev);
1413 u32 num_queues;
1414 int i;
1415
1416 /* We do not allow change in unsupported parameters */
1417 if (key ||
1418 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1419 return -EOPNOTSUPP;
1420 if (!indir)
1421 return 0;
1422
1423 num_queues = adapter->rss_queues;
1424
1425 /* Verify user input. */
1426 for (i = 0; i < IGC_RETA_SIZE; i++)
1427 if (indir[i] >= num_queues)
1428 return -EINVAL;
1429
1430 for (i = 0; i < IGC_RETA_SIZE; i++)
1431 adapter->rss_indir_tbl[i] = indir[i];
1432
1433 igc_write_rss_indir_tbl(adapter);
1434
1435 return 0;
1436}
1437
1438static void igc_ethtool_get_channels(struct net_device *netdev,
1439 struct ethtool_channels *ch)
1440{
1441 struct igc_adapter *adapter = netdev_priv(netdev);
1442
1443 /* Report maximum channels */
1444 ch->max_combined = igc_get_max_rss_queues(adapter);
1445
1446 /* Report info for other vector */
1447 if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1448 ch->max_other = NON_Q_VECTORS;
1449 ch->other_count = NON_Q_VECTORS;
1450 }
1451
1452 ch->combined_count = adapter->rss_queues;
1453}
1454
1455static int igc_ethtool_set_channels(struct net_device *netdev,
1456 struct ethtool_channels *ch)
1457{
1458 struct igc_adapter *adapter = netdev_priv(netdev);
1459 unsigned int count = ch->combined_count;
1460 unsigned int max_combined = 0;
1461
1462 /* Verify they are not requesting separate vectors */
1463 if (!count || ch->rx_count || ch->tx_count)
1464 return -EINVAL;
1465
1466 /* Verify other_count is valid and has not been changed */
1467 if (ch->other_count != NON_Q_VECTORS)
1468 return -EINVAL;
1469
1470 /* Verify the number of channels doesn't exceed hw limits */
1471 max_combined = igc_get_max_rss_queues(adapter);
1472 if (count > max_combined)
1473 return -EINVAL;
1474
1475 if (count != adapter->rss_queues) {
1476 adapter->rss_queues = count;
1477 igc_set_flag_queue_pairs(adapter, max_combined);
1478
1479 /* Hardware has to reinitialize queues and interrupts to
1480 * match the new configuration.
1481 */
1482 return igc_reinit_queues(adapter);
1483 }
1484
1485 return 0;
1486}
1487
1488static int igc_ethtool_get_ts_info(struct net_device *dev,
1489 struct ethtool_ts_info *info)
1490{
1491 struct igc_adapter *adapter = netdev_priv(dev);
1492
1493 if (adapter->ptp_clock)
1494 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1495 else
1496 info->phc_index = -1;
1497
1498 switch (adapter->hw.mac.type) {
1499 case igc_i225:
1500 info->so_timestamping =
1501 SOF_TIMESTAMPING_TX_SOFTWARE |
1502 SOF_TIMESTAMPING_RX_SOFTWARE |
1503 SOF_TIMESTAMPING_SOFTWARE |
1504 SOF_TIMESTAMPING_TX_HARDWARE |
1505 SOF_TIMESTAMPING_RX_HARDWARE |
1506 SOF_TIMESTAMPING_RAW_HARDWARE;
1507
1508 info->tx_types =
1509 BIT(HWTSTAMP_TX_OFF) |
1510 BIT(HWTSTAMP_TX_ON);
1511
1512 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1513 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1514
1515 return 0;
1516 default:
1517 return -EOPNOTSUPP;
1518 }
1519}
1520
1521static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1522{
1523 struct igc_adapter *adapter = netdev_priv(netdev);
1524 u32 priv_flags = 0;
1525
1526 if (adapter->flags & IGC_FLAG_RX_LEGACY)
1527 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1528
1529 return priv_flags;
1530}
1531
1532static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1533{
1534 struct igc_adapter *adapter = netdev_priv(netdev);
1535 unsigned int flags = adapter->flags;
1536
1537 flags &= ~IGC_FLAG_RX_LEGACY;
1538 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1539 flags |= IGC_FLAG_RX_LEGACY;
1540
1541 if (flags != adapter->flags) {
1542 adapter->flags = flags;
1543
1544 /* reset interface to repopulate queues */
1545 if (netif_running(netdev))
1546 igc_reinit_locked(adapter);
1547 }
1548
1549 return 0;
1550}
1551
1552static int igc_ethtool_get_eee(struct net_device *netdev,
1553 struct ethtool_eee *edata)
1554{
1555 struct igc_adapter *adapter = netdev_priv(netdev);
1556 struct igc_hw *hw = &adapter->hw;
1557 u32 eeer;
1558
1559 if (hw->dev_spec._base.eee_enable)
1560 edata->advertised =
1561 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1562
1563 *edata = adapter->eee;
1564 edata->supported = SUPPORTED_Autoneg;
1565
1566 eeer = rd32(IGC_EEER);
1567
1568 /* EEE status on negotiated link */
1569 if (eeer & IGC_EEER_EEE_NEG)
1570 edata->eee_active = true;
1571
1572 if (eeer & IGC_EEER_TX_LPI_EN)
1573 edata->tx_lpi_enabled = true;
1574
1575 edata->eee_enabled = hw->dev_spec._base.eee_enable;
1576
1577 edata->advertised = SUPPORTED_Autoneg;
1578 edata->lp_advertised = SUPPORTED_Autoneg;
1579
1580 /* Report correct negotiated EEE status for devices that
1581 * wrongly report EEE at half-duplex
1582 */
1583 if (adapter->link_duplex == HALF_DUPLEX) {
1584 edata->eee_enabled = false;
1585 edata->eee_active = false;
1586 edata->tx_lpi_enabled = false;
1587 edata->advertised &= ~edata->advertised;
1588 }
1589
1590 return 0;
1591}
1592
1593static int igc_ethtool_set_eee(struct net_device *netdev,
1594 struct ethtool_eee *edata)
1595{
1596 struct igc_adapter *adapter = netdev_priv(netdev);
1597 struct igc_hw *hw = &adapter->hw;
1598 struct ethtool_eee eee_curr;
1599 s32 ret_val;
1600
1601 memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1602
1603 ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1604 if (ret_val) {
1605 netdev_err(netdev,
1606 "Problem setting EEE advertisement options\n");
1607 return -EINVAL;
1608 }
1609
1610 if (eee_curr.eee_enabled) {
1611 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1612 netdev_err(netdev,
1613 "Setting EEE tx-lpi is not supported\n");
1614 return -EINVAL;
1615 }
1616
1617 /* Tx LPI timer is not implemented currently */
1618 if (edata->tx_lpi_timer) {
1619 netdev_err(netdev,
1620 "Setting EEE Tx LPI timer is not supported\n");
1621 return -EINVAL;
1622 }
1623 } else if (!edata->eee_enabled) {
1624 netdev_err(netdev,
1625 "Setting EEE options are not supported with EEE disabled\n");
1626 return -EINVAL;
1627 }
1628
1629 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1630 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1631 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1632 adapter->flags |= IGC_FLAG_EEE;
1633
1634 /* reset link */
1635 if (netif_running(netdev))
1636 igc_reinit_locked(adapter);
1637 else
1638 igc_reset(adapter);
1639 }
1640
1641 return 0;
1642}
1643
1644static int igc_ethtool_begin(struct net_device *netdev)
1645{
1646 struct igc_adapter *adapter = netdev_priv(netdev);
1647
1648 pm_runtime_get_sync(&adapter->pdev->dev);
1649 return 0;
1650}
1651
1652static void igc_ethtool_complete(struct net_device *netdev)
1653{
1654 struct igc_adapter *adapter = netdev_priv(netdev);
1655
1656 pm_runtime_put(&adapter->pdev->dev);
1657}
1658
1659static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1660 struct ethtool_link_ksettings *cmd)
1661{
1662 struct igc_adapter *adapter = netdev_priv(netdev);
1663 struct igc_hw *hw = &adapter->hw;
1664 u32 status;
1665 u32 speed;
1666
1667 ethtool_link_ksettings_zero_link_mode(cmd, supported);
1668 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1669
1670 /* supported link modes */
1671 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1672 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1673 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1674 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1675 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1676 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1677
1678 /* twisted pair */
1679 cmd->base.port = PORT_TP;
1680 cmd->base.phy_address = hw->phy.addr;
1681
1682 /* advertising link modes */
1683 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1684 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1685 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1686 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1687 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1688 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1689 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1690 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1691 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1692 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1693 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1694 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1695
1696 /* set autoneg settings */
1697 if (hw->mac.autoneg == 1) {
1698 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1699 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1700 Autoneg);
1701 }
1702
1703 /* Set pause flow control settings */
1704 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1705
1706 switch (hw->fc.requested_mode) {
1707 case igc_fc_full:
1708 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1709 break;
1710 case igc_fc_rx_pause:
1711 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1712 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1713 Asym_Pause);
1714 break;
1715 case igc_fc_tx_pause:
1716 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1717 Asym_Pause);
1718 break;
1719 default:
1720 break;
1721 }
1722
1723 status = pm_runtime_suspended(&adapter->pdev->dev) ?
1724 0 : rd32(IGC_STATUS);
1725
1726 if (status & IGC_STATUS_LU) {
1727 if (status & IGC_STATUS_SPEED_1000) {
1728 /* For I225, STATUS will indicate 1G speed in both
1729 * 1 Gbps and 2.5 Gbps link modes.
1730 * An additional bit is used
1731 * to differentiate between 1 Gbps and 2.5 Gbps.
1732 */
1733 if (hw->mac.type == igc_i225 &&
1734 (status & IGC_STATUS_SPEED_2500)) {
1735 speed = SPEED_2500;
1736 } else {
1737 speed = SPEED_1000;
1738 }
1739 } else if (status & IGC_STATUS_SPEED_100) {
1740 speed = SPEED_100;
1741 } else {
1742 speed = SPEED_10;
1743 }
1744 if ((status & IGC_STATUS_FD) ||
1745 hw->phy.media_type != igc_media_type_copper)
1746 cmd->base.duplex = DUPLEX_FULL;
1747 else
1748 cmd->base.duplex = DUPLEX_HALF;
1749 } else {
1750 speed = SPEED_UNKNOWN;
1751 cmd->base.duplex = DUPLEX_UNKNOWN;
1752 }
1753 cmd->base.speed = speed;
1754 if (hw->mac.autoneg)
1755 cmd->base.autoneg = AUTONEG_ENABLE;
1756 else
1757 cmd->base.autoneg = AUTONEG_DISABLE;
1758
1759 /* MDI-X => 2; MDI =>1; Invalid =>0 */
1760 if (hw->phy.media_type == igc_media_type_copper)
1761 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1762 ETH_TP_MDI;
1763 else
1764 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1765
1766 if (hw->phy.mdix == AUTO_ALL_MODES)
1767 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1768 else
1769 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1770
1771 return 0;
1772}
1773
1774static int
1775igc_ethtool_set_link_ksettings(struct net_device *netdev,
1776 const struct ethtool_link_ksettings *cmd)
1777{
1778 struct igc_adapter *adapter = netdev_priv(netdev);
1779 struct net_device *dev = adapter->netdev;
1780 struct igc_hw *hw = &adapter->hw;
1781 u32 advertising;
1782
1783 /* When adapter in resetting mode, autoneg/speed/duplex
1784 * cannot be changed
1785 */
1786 if (igc_check_reset_block(hw)) {
1787 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1788 return -EINVAL;
1789 }
1790
1791 /* MDI setting is only allowed when autoneg enabled because
1792 * some hardware doesn't allow MDI setting when speed or
1793 * duplex is forced.
1794 */
1795 if (cmd->base.eth_tp_mdix_ctrl) {
1796 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1797 cmd->base.autoneg != AUTONEG_ENABLE) {
1798 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1799 return -EINVAL;
1800 }
1801 }
1802
1803 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1804 usleep_range(1000, 2000);
1805
1806 ethtool_convert_link_mode_to_legacy_u32(&advertising,
1807 cmd->link_modes.advertising);
1808 /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
1809 * We have to check this and convert it to ADVERTISE_2500_FULL
1810 * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
1811 */
1812 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
1813 advertising |= ADVERTISE_2500_FULL;
1814
1815 if (cmd->base.autoneg == AUTONEG_ENABLE) {
1816 hw->mac.autoneg = 1;
1817 hw->phy.autoneg_advertised = advertising;
1818 if (adapter->fc_autoneg)
1819 hw->fc.requested_mode = igc_fc_default;
1820 } else {
1821 netdev_info(dev, "Force mode currently not supported\n");
1822 }
1823
1824 /* MDI-X => 2; MDI => 1; Auto => 3 */
1825 if (cmd->base.eth_tp_mdix_ctrl) {
1826 /* fix up the value for auto (3 => 0) as zero is mapped
1827 * internally to auto
1828 */
1829 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1830 hw->phy.mdix = AUTO_ALL_MODES;
1831 else
1832 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1833 }
1834
1835 /* reset the link */
1836 if (netif_running(adapter->netdev)) {
1837 igc_down(adapter);
1838 igc_up(adapter);
1839 } else {
1840 igc_reset(adapter);
1841 }
1842
1843 clear_bit(__IGC_RESETTING, &adapter->state);
1844
1845 return 0;
1846}
1847
1848static void igc_ethtool_diag_test(struct net_device *netdev,
1849 struct ethtool_test *eth_test, u64 *data)
1850{
1851 struct igc_adapter *adapter = netdev_priv(netdev);
1852 bool if_running = netif_running(netdev);
1853
1854 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1855 netdev_info(adapter->netdev, "Offline testing starting");
1856 set_bit(__IGC_TESTING, &adapter->state);
1857
1858 /* Link test performed before hardware reset so autoneg doesn't
1859 * interfere with test result
1860 */
1861 if (!igc_link_test(adapter, &data[TEST_LINK]))
1862 eth_test->flags |= ETH_TEST_FL_FAILED;
1863
1864 if (if_running)
1865 igc_close(netdev);
1866 else
1867 igc_reset(adapter);
1868
1869 netdev_info(adapter->netdev, "Register testing starting");
1870 if (!igc_reg_test(adapter, &data[TEST_REG]))
1871 eth_test->flags |= ETH_TEST_FL_FAILED;
1872
1873 igc_reset(adapter);
1874
1875 netdev_info(adapter->netdev, "EEPROM testing starting");
1876 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1877 eth_test->flags |= ETH_TEST_FL_FAILED;
1878
1879 igc_reset(adapter);
1880
1881 /* loopback and interrupt tests
1882 * will be implemented in the future
1883 */
1884 data[TEST_LOOP] = 0;
1885 data[TEST_IRQ] = 0;
1886
1887 clear_bit(__IGC_TESTING, &adapter->state);
1888 if (if_running)
1889 igc_open(netdev);
1890 } else {
1891 netdev_info(adapter->netdev, "Online testing starting");
1892
1893 /* register, eeprom, intr and loopback tests not run online */
1894 data[TEST_REG] = 0;
1895 data[TEST_EEP] = 0;
1896 data[TEST_IRQ] = 0;
1897 data[TEST_LOOP] = 0;
1898
1899 if (!igc_link_test(adapter, &data[TEST_LINK]))
1900 eth_test->flags |= ETH_TEST_FL_FAILED;
1901 }
1902
1903 msleep_interruptible(4 * 1000);
1904}
1905
1906static const struct ethtool_ops igc_ethtool_ops = {
1907 .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1908 .get_drvinfo = igc_ethtool_get_drvinfo,
1909 .get_regs_len = igc_ethtool_get_regs_len,
1910 .get_regs = igc_ethtool_get_regs,
1911 .get_wol = igc_ethtool_get_wol,
1912 .set_wol = igc_ethtool_set_wol,
1913 .get_msglevel = igc_ethtool_get_msglevel,
1914 .set_msglevel = igc_ethtool_set_msglevel,
1915 .nway_reset = igc_ethtool_nway_reset,
1916 .get_link = igc_ethtool_get_link,
1917 .get_eeprom_len = igc_ethtool_get_eeprom_len,
1918 .get_eeprom = igc_ethtool_get_eeprom,
1919 .set_eeprom = igc_ethtool_set_eeprom,
1920 .get_ringparam = igc_ethtool_get_ringparam,
1921 .set_ringparam = igc_ethtool_set_ringparam,
1922 .get_pauseparam = igc_ethtool_get_pauseparam,
1923 .set_pauseparam = igc_ethtool_set_pauseparam,
1924 .get_strings = igc_ethtool_get_strings,
1925 .get_sset_count = igc_ethtool_get_sset_count,
1926 .get_ethtool_stats = igc_ethtool_get_stats,
1927 .get_coalesce = igc_ethtool_get_coalesce,
1928 .set_coalesce = igc_ethtool_set_coalesce,
1929 .get_rxnfc = igc_ethtool_get_rxnfc,
1930 .set_rxnfc = igc_ethtool_set_rxnfc,
1931 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size,
1932 .get_rxfh = igc_ethtool_get_rxfh,
1933 .set_rxfh = igc_ethtool_set_rxfh,
1934 .get_ts_info = igc_ethtool_get_ts_info,
1935 .get_channels = igc_ethtool_get_channels,
1936 .set_channels = igc_ethtool_set_channels,
1937 .get_priv_flags = igc_ethtool_get_priv_flags,
1938 .set_priv_flags = igc_ethtool_set_priv_flags,
1939 .get_eee = igc_ethtool_get_eee,
1940 .set_eee = igc_ethtool_set_eee,
1941 .begin = igc_ethtool_begin,
1942 .complete = igc_ethtool_complete,
1943 .get_link_ksettings = igc_ethtool_get_link_ksettings,
1944 .set_link_ksettings = igc_ethtool_set_link_ksettings,
1945 .self_test = igc_ethtool_diag_test,
1946};
1947
1948void igc_ethtool_set_ops(struct net_device *netdev)
1949{
1950 netdev->ethtool_ops = &igc_ethtool_ops;
1951}