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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 IGC_STAT("qbv_config_change_errors", qbv_config_change_errors),
71};
72
73#define IGC_NETDEV_STAT(_net_stat) { \
74 .stat_string = __stringify(_net_stat), \
75 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
76 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
77}
78
79static const struct igc_stats igc_gstrings_net_stats[] = {
80 IGC_NETDEV_STAT(rx_errors),
81 IGC_NETDEV_STAT(tx_errors),
82 IGC_NETDEV_STAT(tx_dropped),
83 IGC_NETDEV_STAT(rx_length_errors),
84 IGC_NETDEV_STAT(rx_over_errors),
85 IGC_NETDEV_STAT(rx_frame_errors),
86 IGC_NETDEV_STAT(rx_fifo_errors),
87 IGC_NETDEV_STAT(tx_fifo_errors),
88 IGC_NETDEV_STAT(tx_heartbeat_errors)
89};
90
91enum igc_diagnostics_results {
92 TEST_REG = 0,
93 TEST_EEP,
94 TEST_IRQ,
95 TEST_LOOP,
96 TEST_LINK
97};
98
99static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
100 [TEST_REG] = "Register test (offline)",
101 [TEST_EEP] = "Eeprom test (offline)",
102 [TEST_IRQ] = "Interrupt test (offline)",
103 [TEST_LOOP] = "Loopback test (offline)",
104 [TEST_LINK] = "Link test (on/offline)"
105};
106
107#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
108
109#define IGC_GLOBAL_STATS_LEN \
110 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
111#define IGC_NETDEV_STATS_LEN \
112 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
113#define IGC_RX_QUEUE_STATS_LEN \
114 (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
115#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
116#define IGC_QUEUE_STATS_LEN \
117 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
118 IGC_RX_QUEUE_STATS_LEN) + \
119 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
120 IGC_TX_QUEUE_STATS_LEN))
121#define IGC_STATS_LEN \
122 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
123
124static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
125#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0)
126 "legacy-rx",
127};
128
129#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
130
131static void igc_ethtool_get_drvinfo(struct net_device *netdev,
132 struct ethtool_drvinfo *drvinfo)
133{
134 struct igc_adapter *adapter = netdev_priv(netdev);
135 struct igc_hw *hw = &adapter->hw;
136 u16 nvm_version = 0;
137 u16 gphy_version;
138
139 strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
140
141 /* NVM image version is reported as firmware version for i225 device */
142 hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version);
143
144 /* gPHY firmware version is reported as PHY FW version */
145 gphy_version = igc_read_phy_fw_version(hw);
146
147 scnprintf(adapter->fw_version,
148 sizeof(adapter->fw_version),
149 "%x:%x",
150 nvm_version,
151 gphy_version);
152
153 strscpy(drvinfo->fw_version, adapter->fw_version,
154 sizeof(drvinfo->fw_version));
155
156 strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
157 sizeof(drvinfo->bus_info));
158
159 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
160}
161
162static int igc_ethtool_get_regs_len(struct net_device *netdev)
163{
164 return IGC_REGS_LEN * sizeof(u32);
165}
166
167static void igc_ethtool_get_regs(struct net_device *netdev,
168 struct ethtool_regs *regs, void *p)
169{
170 struct igc_adapter *adapter = netdev_priv(netdev);
171 struct igc_hw *hw = &adapter->hw;
172 u32 *regs_buff = p;
173 u8 i;
174
175 memset(p, 0, IGC_REGS_LEN * sizeof(u32));
176
177 regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
178
179 /* General Registers */
180 regs_buff[0] = rd32(IGC_CTRL);
181 regs_buff[1] = rd32(IGC_STATUS);
182 regs_buff[2] = rd32(IGC_CTRL_EXT);
183 regs_buff[3] = rd32(IGC_MDIC);
184 regs_buff[4] = rd32(IGC_CONNSW);
185
186 /* NVM Register */
187 regs_buff[5] = rd32(IGC_EECD);
188
189 /* Interrupt */
190 /* Reading EICS for EICR because they read the
191 * same but EICS does not clear on read
192 */
193 regs_buff[6] = rd32(IGC_EICS);
194 regs_buff[7] = rd32(IGC_EICS);
195 regs_buff[8] = rd32(IGC_EIMS);
196 regs_buff[9] = rd32(IGC_EIMC);
197 regs_buff[10] = rd32(IGC_EIAC);
198 regs_buff[11] = rd32(IGC_EIAM);
199 /* Reading ICS for ICR because they read the
200 * same but ICS does not clear on read
201 */
202 regs_buff[12] = rd32(IGC_ICS);
203 regs_buff[13] = rd32(IGC_ICS);
204 regs_buff[14] = rd32(IGC_IMS);
205 regs_buff[15] = rd32(IGC_IMC);
206 regs_buff[16] = rd32(IGC_IAC);
207 regs_buff[17] = rd32(IGC_IAM);
208
209 /* Flow Control */
210 regs_buff[18] = rd32(IGC_FCAL);
211 regs_buff[19] = rd32(IGC_FCAH);
212 regs_buff[20] = rd32(IGC_FCTTV);
213 regs_buff[21] = rd32(IGC_FCRTL);
214 regs_buff[22] = rd32(IGC_FCRTH);
215 regs_buff[23] = rd32(IGC_FCRTV);
216
217 /* Receive */
218 regs_buff[24] = rd32(IGC_RCTL);
219 regs_buff[25] = rd32(IGC_RXCSUM);
220 regs_buff[26] = rd32(IGC_RLPML);
221 regs_buff[27] = rd32(IGC_RFCTL);
222
223 /* Transmit */
224 regs_buff[28] = rd32(IGC_TCTL);
225 regs_buff[29] = rd32(IGC_TIPG);
226
227 /* Wake Up */
228
229 /* MAC */
230
231 /* Statistics */
232 regs_buff[30] = adapter->stats.crcerrs;
233 regs_buff[31] = adapter->stats.algnerrc;
234 regs_buff[32] = adapter->stats.symerrs;
235 regs_buff[33] = adapter->stats.rxerrc;
236 regs_buff[34] = adapter->stats.mpc;
237 regs_buff[35] = adapter->stats.scc;
238 regs_buff[36] = adapter->stats.ecol;
239 regs_buff[37] = adapter->stats.mcc;
240 regs_buff[38] = adapter->stats.latecol;
241 regs_buff[39] = adapter->stats.colc;
242 regs_buff[40] = adapter->stats.dc;
243 regs_buff[41] = adapter->stats.tncrs;
244 regs_buff[42] = adapter->stats.sec;
245 regs_buff[43] = adapter->stats.htdpmc;
246 regs_buff[44] = adapter->stats.rlec;
247 regs_buff[45] = adapter->stats.xonrxc;
248 regs_buff[46] = adapter->stats.xontxc;
249 regs_buff[47] = adapter->stats.xoffrxc;
250 regs_buff[48] = adapter->stats.xofftxc;
251 regs_buff[49] = adapter->stats.fcruc;
252 regs_buff[50] = adapter->stats.prc64;
253 regs_buff[51] = adapter->stats.prc127;
254 regs_buff[52] = adapter->stats.prc255;
255 regs_buff[53] = adapter->stats.prc511;
256 regs_buff[54] = adapter->stats.prc1023;
257 regs_buff[55] = adapter->stats.prc1522;
258 regs_buff[56] = adapter->stats.gprc;
259 regs_buff[57] = adapter->stats.bprc;
260 regs_buff[58] = adapter->stats.mprc;
261 regs_buff[59] = adapter->stats.gptc;
262 regs_buff[60] = adapter->stats.gorc;
263 regs_buff[61] = adapter->stats.gotc;
264 regs_buff[62] = adapter->stats.rnbc;
265 regs_buff[63] = adapter->stats.ruc;
266 regs_buff[64] = adapter->stats.rfc;
267 regs_buff[65] = adapter->stats.roc;
268 regs_buff[66] = adapter->stats.rjc;
269 regs_buff[67] = adapter->stats.mgprc;
270 regs_buff[68] = adapter->stats.mgpdc;
271 regs_buff[69] = adapter->stats.mgptc;
272 regs_buff[70] = adapter->stats.tor;
273 regs_buff[71] = adapter->stats.tot;
274 regs_buff[72] = adapter->stats.tpr;
275 regs_buff[73] = adapter->stats.tpt;
276 regs_buff[74] = adapter->stats.ptc64;
277 regs_buff[75] = adapter->stats.ptc127;
278 regs_buff[76] = adapter->stats.ptc255;
279 regs_buff[77] = adapter->stats.ptc511;
280 regs_buff[78] = adapter->stats.ptc1023;
281 regs_buff[79] = adapter->stats.ptc1522;
282 regs_buff[80] = adapter->stats.mptc;
283 regs_buff[81] = adapter->stats.bptc;
284 regs_buff[82] = adapter->stats.tsctc;
285 regs_buff[83] = adapter->stats.iac;
286 regs_buff[84] = adapter->stats.rpthc;
287 regs_buff[85] = adapter->stats.hgptc;
288 regs_buff[86] = adapter->stats.hgorc;
289 regs_buff[87] = adapter->stats.hgotc;
290 regs_buff[88] = adapter->stats.lenerrs;
291 regs_buff[89] = adapter->stats.scvpc;
292 regs_buff[90] = adapter->stats.hrmpc;
293
294 for (i = 0; i < 4; i++)
295 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
296 for (i = 0; i < 4; i++)
297 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
298 for (i = 0; i < 4; i++)
299 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
300 for (i = 0; i < 4; i++)
301 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
302 for (i = 0; i < 4; i++)
303 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
304 for (i = 0; i < 4; i++)
305 regs_buff[111 + i] = rd32(IGC_RDH(i));
306 for (i = 0; i < 4; i++)
307 regs_buff[115 + i] = rd32(IGC_RDT(i));
308 for (i = 0; i < 4; i++)
309 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
310
311 for (i = 0; i < 10; i++)
312 regs_buff[123 + i] = rd32(IGC_EITR(i));
313 for (i = 0; i < 16; i++)
314 regs_buff[139 + i] = rd32(IGC_RAL(i));
315 for (i = 0; i < 16; i++)
316 regs_buff[145 + i] = rd32(IGC_RAH(i));
317
318 for (i = 0; i < 4; i++)
319 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
320 for (i = 0; i < 4; i++)
321 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
322 for (i = 0; i < 4; i++)
323 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
324 for (i = 0; i < 4; i++)
325 regs_buff[160 + i] = rd32(IGC_TDH(i));
326 for (i = 0; i < 4; i++)
327 regs_buff[164 + i] = rd32(IGC_TDT(i));
328 for (i = 0; i < 4; i++)
329 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
330
331 /* XXX: Due to a bug few lines above, RAL and RAH registers are
332 * overwritten. To preserve the ABI, we write these registers again in
333 * regs_buff.
334 */
335 for (i = 0; i < 16; i++)
336 regs_buff[172 + i] = rd32(IGC_RAL(i));
337 for (i = 0; i < 16; i++)
338 regs_buff[188 + i] = rd32(IGC_RAH(i));
339
340 regs_buff[204] = rd32(IGC_VLANPQF);
341
342 for (i = 0; i < 8; i++)
343 regs_buff[205 + i] = rd32(IGC_ETQF(i));
344
345 regs_buff[213] = adapter->stats.tlpic;
346 regs_buff[214] = adapter->stats.rlpic;
347}
348
349static void igc_ethtool_get_wol(struct net_device *netdev,
350 struct ethtool_wolinfo *wol)
351{
352 struct igc_adapter *adapter = netdev_priv(netdev);
353
354 wol->wolopts = 0;
355
356 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
357 return;
358
359 wol->supported = WAKE_UCAST | WAKE_MCAST |
360 WAKE_BCAST | WAKE_MAGIC |
361 WAKE_PHY;
362
363 /* apply any specific unsupported masks here */
364 switch (adapter->hw.device_id) {
365 default:
366 break;
367 }
368
369 if (adapter->wol & IGC_WUFC_EX)
370 wol->wolopts |= WAKE_UCAST;
371 if (adapter->wol & IGC_WUFC_MC)
372 wol->wolopts |= WAKE_MCAST;
373 if (adapter->wol & IGC_WUFC_BC)
374 wol->wolopts |= WAKE_BCAST;
375 if (adapter->wol & IGC_WUFC_MAG)
376 wol->wolopts |= WAKE_MAGIC;
377 if (adapter->wol & IGC_WUFC_LNKC)
378 wol->wolopts |= WAKE_PHY;
379}
380
381static int igc_ethtool_set_wol(struct net_device *netdev,
382 struct ethtool_wolinfo *wol)
383{
384 struct igc_adapter *adapter = netdev_priv(netdev);
385
386 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
387 return -EOPNOTSUPP;
388
389 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
390 return wol->wolopts ? -EOPNOTSUPP : 0;
391
392 /* these settings will always override what we currently have */
393 adapter->wol = 0;
394
395 if (wol->wolopts & WAKE_UCAST)
396 adapter->wol |= IGC_WUFC_EX;
397 if (wol->wolopts & WAKE_MCAST)
398 adapter->wol |= IGC_WUFC_MC;
399 if (wol->wolopts & WAKE_BCAST)
400 adapter->wol |= IGC_WUFC_BC;
401 if (wol->wolopts & WAKE_MAGIC)
402 adapter->wol |= IGC_WUFC_MAG;
403 if (wol->wolopts & WAKE_PHY)
404 adapter->wol |= IGC_WUFC_LNKC;
405 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
406
407 return 0;
408}
409
410static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
411{
412 struct igc_adapter *adapter = netdev_priv(netdev);
413
414 return adapter->msg_enable;
415}
416
417static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
418{
419 struct igc_adapter *adapter = netdev_priv(netdev);
420
421 adapter->msg_enable = data;
422}
423
424static int igc_ethtool_nway_reset(struct net_device *netdev)
425{
426 struct igc_adapter *adapter = netdev_priv(netdev);
427
428 if (netif_running(netdev))
429 igc_reinit_locked(adapter);
430 return 0;
431}
432
433static u32 igc_ethtool_get_link(struct net_device *netdev)
434{
435 struct igc_adapter *adapter = netdev_priv(netdev);
436 struct igc_mac_info *mac = &adapter->hw.mac;
437
438 /* If the link is not reported up to netdev, interrupts are disabled,
439 * and so the physical link state may have changed since we last
440 * looked. Set get_link_status to make sure that the true link
441 * state is interrogated, rather than pulling a cached and possibly
442 * stale link state from the driver.
443 */
444 if (!netif_carrier_ok(netdev))
445 mac->get_link_status = 1;
446
447 return igc_has_link(adapter);
448}
449
450static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
451{
452 struct igc_adapter *adapter = netdev_priv(netdev);
453
454 return adapter->hw.nvm.word_size * 2;
455}
456
457static int igc_ethtool_get_eeprom(struct net_device *netdev,
458 struct ethtool_eeprom *eeprom, u8 *bytes)
459{
460 struct igc_adapter *adapter = netdev_priv(netdev);
461 struct igc_hw *hw = &adapter->hw;
462 int first_word, last_word;
463 u16 *eeprom_buff;
464 int ret_val = 0;
465 u16 i;
466
467 if (eeprom->len == 0)
468 return -EINVAL;
469
470 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
471
472 first_word = eeprom->offset >> 1;
473 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
474
475 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
476 GFP_KERNEL);
477 if (!eeprom_buff)
478 return -ENOMEM;
479
480 if (hw->nvm.type == igc_nvm_eeprom_spi) {
481 ret_val = hw->nvm.ops.read(hw, first_word,
482 last_word - first_word + 1,
483 eeprom_buff);
484 } else {
485 for (i = 0; i < last_word - first_word + 1; i++) {
486 ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
487 &eeprom_buff[i]);
488 if (ret_val)
489 break;
490 }
491 }
492
493 /* Device's eeprom is always little-endian, word addressable */
494 for (i = 0; i < last_word - first_word + 1; i++)
495 le16_to_cpus(&eeprom_buff[i]);
496
497 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
498 eeprom->len);
499 kfree(eeprom_buff);
500
501 return ret_val;
502}
503
504static int igc_ethtool_set_eeprom(struct net_device *netdev,
505 struct ethtool_eeprom *eeprom, u8 *bytes)
506{
507 struct igc_adapter *adapter = netdev_priv(netdev);
508 struct igc_hw *hw = &adapter->hw;
509 int max_len, first_word, last_word, ret_val = 0;
510 u16 *eeprom_buff;
511 void *ptr;
512 u16 i;
513
514 if (eeprom->len == 0)
515 return -EOPNOTSUPP;
516
517 if (hw->mac.type >= igc_i225 &&
518 !igc_get_flash_presence_i225(hw)) {
519 return -EOPNOTSUPP;
520 }
521
522 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
523 return -EFAULT;
524
525 max_len = hw->nvm.word_size * 2;
526
527 first_word = eeprom->offset >> 1;
528 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
529 eeprom_buff = kmalloc(max_len, GFP_KERNEL);
530 if (!eeprom_buff)
531 return -ENOMEM;
532
533 ptr = (void *)eeprom_buff;
534
535 if (eeprom->offset & 1) {
536 /* need read/modify/write of first changed EEPROM word
537 * only the second byte of the word is being modified
538 */
539 ret_val = hw->nvm.ops.read(hw, first_word, 1,
540 &eeprom_buff[0]);
541 ptr++;
542 }
543 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
544 /* need read/modify/write of last changed EEPROM word
545 * only the first byte of the word is being modified
546 */
547 ret_val = hw->nvm.ops.read(hw, last_word, 1,
548 &eeprom_buff[last_word - first_word]);
549 }
550
551 /* Device's eeprom is always little-endian, word addressable */
552 for (i = 0; i < last_word - first_word + 1; i++)
553 le16_to_cpus(&eeprom_buff[i]);
554
555 memcpy(ptr, bytes, eeprom->len);
556
557 for (i = 0; i < last_word - first_word + 1; i++)
558 cpu_to_le16s(&eeprom_buff[i]);
559
560 ret_val = hw->nvm.ops.write(hw, first_word,
561 last_word - first_word + 1, eeprom_buff);
562
563 /* Update the checksum if nvm write succeeded */
564 if (ret_val == 0)
565 hw->nvm.ops.update(hw);
566
567 kfree(eeprom_buff);
568 return ret_val;
569}
570
571static void
572igc_ethtool_get_ringparam(struct net_device *netdev,
573 struct ethtool_ringparam *ring,
574 struct kernel_ethtool_ringparam *kernel_ering,
575 struct netlink_ext_ack *extack)
576{
577 struct igc_adapter *adapter = netdev_priv(netdev);
578
579 ring->rx_max_pending = IGC_MAX_RXD;
580 ring->tx_max_pending = IGC_MAX_TXD;
581 ring->rx_pending = adapter->rx_ring_count;
582 ring->tx_pending = adapter->tx_ring_count;
583}
584
585static int
586igc_ethtool_set_ringparam(struct net_device *netdev,
587 struct ethtool_ringparam *ring,
588 struct kernel_ethtool_ringparam *kernel_ering,
589 struct netlink_ext_ack *extack)
590{
591 struct igc_adapter *adapter = netdev_priv(netdev);
592 struct igc_ring *temp_ring;
593 u16 new_rx_count, new_tx_count;
594 int i, err = 0;
595
596 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
597 return -EINVAL;
598
599 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
600 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
601 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
602
603 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
604 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
605 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
606
607 if (new_tx_count == adapter->tx_ring_count &&
608 new_rx_count == adapter->rx_ring_count) {
609 /* nothing to do */
610 return 0;
611 }
612
613 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
614 usleep_range(1000, 2000);
615
616 if (!netif_running(adapter->netdev)) {
617 for (i = 0; i < adapter->num_tx_queues; i++)
618 adapter->tx_ring[i]->count = new_tx_count;
619 for (i = 0; i < adapter->num_rx_queues; i++)
620 adapter->rx_ring[i]->count = new_rx_count;
621 adapter->tx_ring_count = new_tx_count;
622 adapter->rx_ring_count = new_rx_count;
623 goto clear_reset;
624 }
625
626 if (adapter->num_tx_queues > adapter->num_rx_queues)
627 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
628 adapter->num_tx_queues));
629 else
630 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
631 adapter->num_rx_queues));
632
633 if (!temp_ring) {
634 err = -ENOMEM;
635 goto clear_reset;
636 }
637
638 igc_down(adapter);
639
640 /* We can't just free everything and then setup again,
641 * because the ISRs in MSI-X mode get passed pointers
642 * to the Tx and Rx ring structs.
643 */
644 if (new_tx_count != adapter->tx_ring_count) {
645 for (i = 0; i < adapter->num_tx_queues; i++) {
646 memcpy(&temp_ring[i], adapter->tx_ring[i],
647 sizeof(struct igc_ring));
648
649 temp_ring[i].count = new_tx_count;
650 err = igc_setup_tx_resources(&temp_ring[i]);
651 if (err) {
652 while (i) {
653 i--;
654 igc_free_tx_resources(&temp_ring[i]);
655 }
656 goto err_setup;
657 }
658 }
659
660 for (i = 0; i < adapter->num_tx_queues; i++) {
661 igc_free_tx_resources(adapter->tx_ring[i]);
662
663 memcpy(adapter->tx_ring[i], &temp_ring[i],
664 sizeof(struct igc_ring));
665 }
666
667 adapter->tx_ring_count = new_tx_count;
668 }
669
670 if (new_rx_count != adapter->rx_ring_count) {
671 for (i = 0; i < adapter->num_rx_queues; i++) {
672 memcpy(&temp_ring[i], adapter->rx_ring[i],
673 sizeof(struct igc_ring));
674
675 temp_ring[i].count = new_rx_count;
676 err = igc_setup_rx_resources(&temp_ring[i]);
677 if (err) {
678 while (i) {
679 i--;
680 igc_free_rx_resources(&temp_ring[i]);
681 }
682 goto err_setup;
683 }
684 }
685
686 for (i = 0; i < adapter->num_rx_queues; i++) {
687 igc_free_rx_resources(adapter->rx_ring[i]);
688
689 memcpy(adapter->rx_ring[i], &temp_ring[i],
690 sizeof(struct igc_ring));
691 }
692
693 adapter->rx_ring_count = new_rx_count;
694 }
695err_setup:
696 igc_up(adapter);
697 vfree(temp_ring);
698clear_reset:
699 clear_bit(__IGC_RESETTING, &adapter->state);
700 return err;
701}
702
703static void igc_ethtool_get_pauseparam(struct net_device *netdev,
704 struct ethtool_pauseparam *pause)
705{
706 struct igc_adapter *adapter = netdev_priv(netdev);
707 struct igc_hw *hw = &adapter->hw;
708
709 pause->autoneg =
710 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
711
712 if (hw->fc.current_mode == igc_fc_rx_pause) {
713 pause->rx_pause = 1;
714 } else if (hw->fc.current_mode == igc_fc_tx_pause) {
715 pause->tx_pause = 1;
716 } else if (hw->fc.current_mode == igc_fc_full) {
717 pause->rx_pause = 1;
718 pause->tx_pause = 1;
719 }
720}
721
722static int igc_ethtool_set_pauseparam(struct net_device *netdev,
723 struct ethtool_pauseparam *pause)
724{
725 struct igc_adapter *adapter = netdev_priv(netdev);
726 struct igc_hw *hw = &adapter->hw;
727 int retval = 0;
728
729 adapter->fc_autoneg = pause->autoneg;
730
731 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
732 usleep_range(1000, 2000);
733
734 if (adapter->fc_autoneg == AUTONEG_ENABLE) {
735 hw->fc.requested_mode = igc_fc_default;
736 if (netif_running(adapter->netdev)) {
737 igc_down(adapter);
738 igc_up(adapter);
739 } else {
740 igc_reset(adapter);
741 }
742 } else {
743 if (pause->rx_pause && pause->tx_pause)
744 hw->fc.requested_mode = igc_fc_full;
745 else if (pause->rx_pause && !pause->tx_pause)
746 hw->fc.requested_mode = igc_fc_rx_pause;
747 else if (!pause->rx_pause && pause->tx_pause)
748 hw->fc.requested_mode = igc_fc_tx_pause;
749 else if (!pause->rx_pause && !pause->tx_pause)
750 hw->fc.requested_mode = igc_fc_none;
751
752 hw->fc.current_mode = hw->fc.requested_mode;
753
754 retval = ((hw->phy.media_type == igc_media_type_copper) ?
755 igc_force_mac_fc(hw) : igc_setup_link(hw));
756 }
757
758 clear_bit(__IGC_RESETTING, &adapter->state);
759 return retval;
760}
761
762static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
763 u8 *data)
764{
765 struct igc_adapter *adapter = netdev_priv(netdev);
766 u8 *p = data;
767 int i;
768
769 switch (stringset) {
770 case ETH_SS_TEST:
771 memcpy(data, *igc_gstrings_test,
772 IGC_TEST_LEN * ETH_GSTRING_LEN);
773 break;
774 case ETH_SS_STATS:
775 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++)
776 ethtool_puts(&p, igc_gstrings_stats[i].stat_string);
777 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
778 ethtool_puts(&p, igc_gstrings_net_stats[i].stat_string);
779 for (i = 0; i < adapter->num_tx_queues; i++) {
780 ethtool_sprintf(&p, "tx_queue_%u_packets", i);
781 ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
782 ethtool_sprintf(&p, "tx_queue_%u_restart", i);
783 }
784 for (i = 0; i < adapter->num_rx_queues; i++) {
785 ethtool_sprintf(&p, "rx_queue_%u_packets", i);
786 ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
787 ethtool_sprintf(&p, "rx_queue_%u_drops", i);
788 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);
789 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);
790 }
791 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
792 break;
793 case ETH_SS_PRIV_FLAGS:
794 memcpy(data, igc_priv_flags_strings,
795 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
796 break;
797 }
798}
799
800static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
801{
802 switch (sset) {
803 case ETH_SS_STATS:
804 return IGC_STATS_LEN;
805 case ETH_SS_TEST:
806 return IGC_TEST_LEN;
807 case ETH_SS_PRIV_FLAGS:
808 return IGC_PRIV_FLAGS_STR_LEN;
809 default:
810 return -ENOTSUPP;
811 }
812}
813
814static void igc_ethtool_get_stats(struct net_device *netdev,
815 struct ethtool_stats *stats, u64 *data)
816{
817 struct igc_adapter *adapter = netdev_priv(netdev);
818 struct rtnl_link_stats64 *net_stats = &adapter->stats64;
819 unsigned int start;
820 struct igc_ring *ring;
821 int i, j;
822 char *p;
823
824 spin_lock(&adapter->stats64_lock);
825 igc_update_stats(adapter);
826
827 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
828 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
829 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
830 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
831 }
832 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
833 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
834 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
835 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
836 }
837 for (j = 0; j < adapter->num_tx_queues; j++) {
838 u64 restart2;
839
840 ring = adapter->tx_ring[j];
841 do {
842 start = u64_stats_fetch_begin(&ring->tx_syncp);
843 data[i] = ring->tx_stats.packets;
844 data[i + 1] = ring->tx_stats.bytes;
845 data[i + 2] = ring->tx_stats.restart_queue;
846 } while (u64_stats_fetch_retry(&ring->tx_syncp, start));
847 do {
848 start = u64_stats_fetch_begin(&ring->tx_syncp2);
849 restart2 = ring->tx_stats.restart_queue2;
850 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start));
851 data[i + 2] += restart2;
852
853 i += IGC_TX_QUEUE_STATS_LEN;
854 }
855 for (j = 0; j < adapter->num_rx_queues; j++) {
856 ring = adapter->rx_ring[j];
857 do {
858 start = u64_stats_fetch_begin(&ring->rx_syncp);
859 data[i] = ring->rx_stats.packets;
860 data[i + 1] = ring->rx_stats.bytes;
861 data[i + 2] = ring->rx_stats.drops;
862 data[i + 3] = ring->rx_stats.csum_err;
863 data[i + 4] = ring->rx_stats.alloc_failed;
864 } while (u64_stats_fetch_retry(&ring->rx_syncp, start));
865 i += IGC_RX_QUEUE_STATS_LEN;
866 }
867 spin_unlock(&adapter->stats64_lock);
868}
869
870static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter)
871{
872 return (adapter->rx_itr_setting <= 3) ?
873 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;
874}
875
876static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)
877{
878 return (adapter->tx_itr_setting <= 3) ?
879 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;
880}
881
882static int igc_ethtool_get_coalesce(struct net_device *netdev,
883 struct ethtool_coalesce *ec,
884 struct kernel_ethtool_coalesce *kernel_coal,
885 struct netlink_ext_ack *extack)
886{
887 struct igc_adapter *adapter = netdev_priv(netdev);
888
889 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);
890 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);
891
892 return 0;
893}
894
895static int igc_ethtool_set_coalesce(struct net_device *netdev,
896 struct ethtool_coalesce *ec,
897 struct kernel_ethtool_coalesce *kernel_coal,
898 struct netlink_ext_ack *extack)
899{
900 struct igc_adapter *adapter = netdev_priv(netdev);
901 int i;
902
903 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
904 (ec->rx_coalesce_usecs > 3 &&
905 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
906 ec->rx_coalesce_usecs == 2)
907 return -EINVAL;
908
909 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
910 (ec->tx_coalesce_usecs > 3 &&
911 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
912 ec->tx_coalesce_usecs == 2)
913 return -EINVAL;
914
915 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) &&
916 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) {
917 NL_SET_ERR_MSG_MOD(extack,
918 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs");
919 return -EINVAL;
920 }
921
922 /* If ITR is disabled, disable DMAC */
923 if (ec->rx_coalesce_usecs == 0) {
924 if (adapter->flags & IGC_FLAG_DMAC)
925 adapter->flags &= ~IGC_FLAG_DMAC;
926 }
927
928 /* convert to rate of irq's per second */
929 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
930 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
931 else
932 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
933
934 /* convert to rate of irq's per second */
935 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
936 adapter->tx_itr_setting = adapter->rx_itr_setting;
937 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
938 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
939 else
940 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
941
942 for (i = 0; i < adapter->num_q_vectors; i++) {
943 struct igc_q_vector *q_vector = adapter->q_vector[i];
944
945 q_vector->tx.work_limit = adapter->tx_work_limit;
946 if (q_vector->rx.ring)
947 q_vector->itr_val = adapter->rx_itr_setting;
948 else
949 q_vector->itr_val = adapter->tx_itr_setting;
950 if (q_vector->itr_val && q_vector->itr_val <= 3)
951 q_vector->itr_val = IGC_START_ITR;
952 q_vector->set_itr = 1;
953 }
954
955 return 0;
956}
957
958#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
959#define VLAN_TCI_FULL_MASK ((__force __be16)~0)
960static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
961 struct ethtool_rxnfc *cmd)
962{
963 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
964 struct igc_nfc_rule *rule = NULL;
965
966 cmd->data = IGC_MAX_RXNFC_RULES;
967
968 mutex_lock(&adapter->nfc_rule_lock);
969
970 rule = igc_get_nfc_rule(adapter, fsp->location);
971 if (!rule)
972 goto out;
973
974 fsp->flow_type = ETHER_FLOW;
975 fsp->ring_cookie = rule->action;
976
977 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
978 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
979 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
980 }
981
982 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) {
983 fsp->flow_type |= FLOW_EXT;
984 fsp->h_ext.vlan_etype = htons(rule->filter.vlan_etype);
985 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK;
986 }
987
988 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
989 fsp->flow_type |= FLOW_EXT;
990 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
991 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask);
992 }
993
994 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
995 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
996 rule->filter.dst_addr);
997 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
998 }
999
1000 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
1001 ether_addr_copy(fsp->h_u.ether_spec.h_source,
1002 rule->filter.src_addr);
1003 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
1004 }
1005
1006 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
1007 fsp->flow_type |= FLOW_EXT;
1008 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
1009 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
1010 }
1011
1012 mutex_unlock(&adapter->nfc_rule_lock);
1013 return 0;
1014
1015out:
1016 mutex_unlock(&adapter->nfc_rule_lock);
1017 return -EINVAL;
1018}
1019
1020static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
1021 struct ethtool_rxnfc *cmd,
1022 u32 *rule_locs)
1023{
1024 struct igc_nfc_rule *rule;
1025 int cnt = 0;
1026
1027 cmd->data = IGC_MAX_RXNFC_RULES;
1028
1029 mutex_lock(&adapter->nfc_rule_lock);
1030
1031 list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1032 if (cnt == cmd->rule_cnt) {
1033 mutex_unlock(&adapter->nfc_rule_lock);
1034 return -EMSGSIZE;
1035 }
1036 rule_locs[cnt] = rule->location;
1037 cnt++;
1038 }
1039
1040 mutex_unlock(&adapter->nfc_rule_lock);
1041
1042 cmd->rule_cnt = cnt;
1043
1044 return 0;
1045}
1046
1047static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1048 struct ethtool_rxnfc *cmd)
1049{
1050 cmd->data = 0;
1051
1052 /* Report default options for RSS on igc */
1053 switch (cmd->flow_type) {
1054 case TCP_V4_FLOW:
1055 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1056 fallthrough;
1057 case UDP_V4_FLOW:
1058 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1059 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1060 fallthrough;
1061 case SCTP_V4_FLOW:
1062 case AH_ESP_V4_FLOW:
1063 case AH_V4_FLOW:
1064 case ESP_V4_FLOW:
1065 case IPV4_FLOW:
1066 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1067 break;
1068 case TCP_V6_FLOW:
1069 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1070 fallthrough;
1071 case UDP_V6_FLOW:
1072 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1073 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1074 fallthrough;
1075 case SCTP_V6_FLOW:
1076 case AH_ESP_V6_FLOW:
1077 case AH_V6_FLOW:
1078 case ESP_V6_FLOW:
1079 case IPV6_FLOW:
1080 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1081 break;
1082 default:
1083 return -EINVAL;
1084 }
1085
1086 return 0;
1087}
1088
1089static int igc_ethtool_get_rxnfc(struct net_device *dev,
1090 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1091{
1092 struct igc_adapter *adapter = netdev_priv(dev);
1093
1094 switch (cmd->cmd) {
1095 case ETHTOOL_GRXRINGS:
1096 cmd->data = adapter->num_rx_queues;
1097 return 0;
1098 case ETHTOOL_GRXCLSRLCNT:
1099 cmd->rule_cnt = adapter->nfc_rule_count;
1100 return 0;
1101 case ETHTOOL_GRXCLSRULE:
1102 return igc_ethtool_get_nfc_rule(adapter, cmd);
1103 case ETHTOOL_GRXCLSRLALL:
1104 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1105 case ETHTOOL_GRXFH:
1106 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1107 default:
1108 return -EOPNOTSUPP;
1109 }
1110}
1111
1112#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1113 IGC_FLAG_RSS_FIELD_IPV6_UDP)
1114static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1115 struct ethtool_rxnfc *nfc)
1116{
1117 u32 flags = adapter->flags;
1118
1119 /* RSS does not support anything other than hashing
1120 * to queues on src and dst IPs and ports
1121 */
1122 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1123 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1124 return -EINVAL;
1125
1126 switch (nfc->flow_type) {
1127 case TCP_V4_FLOW:
1128 case TCP_V6_FLOW:
1129 if (!(nfc->data & RXH_IP_SRC) ||
1130 !(nfc->data & RXH_IP_DST) ||
1131 !(nfc->data & RXH_L4_B_0_1) ||
1132 !(nfc->data & RXH_L4_B_2_3))
1133 return -EINVAL;
1134 break;
1135 case UDP_V4_FLOW:
1136 if (!(nfc->data & RXH_IP_SRC) ||
1137 !(nfc->data & RXH_IP_DST))
1138 return -EINVAL;
1139 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1140 case 0:
1141 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1142 break;
1143 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1144 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1145 break;
1146 default:
1147 return -EINVAL;
1148 }
1149 break;
1150 case UDP_V6_FLOW:
1151 if (!(nfc->data & RXH_IP_SRC) ||
1152 !(nfc->data & RXH_IP_DST))
1153 return -EINVAL;
1154 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1155 case 0:
1156 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1157 break;
1158 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1159 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1160 break;
1161 default:
1162 return -EINVAL;
1163 }
1164 break;
1165 case AH_ESP_V4_FLOW:
1166 case AH_V4_FLOW:
1167 case ESP_V4_FLOW:
1168 case SCTP_V4_FLOW:
1169 case AH_ESP_V6_FLOW:
1170 case AH_V6_FLOW:
1171 case ESP_V6_FLOW:
1172 case SCTP_V6_FLOW:
1173 if (!(nfc->data & RXH_IP_SRC) ||
1174 !(nfc->data & RXH_IP_DST) ||
1175 (nfc->data & RXH_L4_B_0_1) ||
1176 (nfc->data & RXH_L4_B_2_3))
1177 return -EINVAL;
1178 break;
1179 default:
1180 return -EINVAL;
1181 }
1182
1183 /* if we changed something we need to update flags */
1184 if (flags != adapter->flags) {
1185 struct igc_hw *hw = &adapter->hw;
1186 u32 mrqc = rd32(IGC_MRQC);
1187
1188 if ((flags & UDP_RSS_FLAGS) &&
1189 !(adapter->flags & UDP_RSS_FLAGS))
1190 netdev_err(adapter->netdev,
1191 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1192
1193 adapter->flags = flags;
1194
1195 /* Perform hash on these packet types */
1196 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1197 IGC_MRQC_RSS_FIELD_IPV4_TCP |
1198 IGC_MRQC_RSS_FIELD_IPV6 |
1199 IGC_MRQC_RSS_FIELD_IPV6_TCP;
1200
1201 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1202 IGC_MRQC_RSS_FIELD_IPV6_UDP);
1203
1204 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1205 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1206
1207 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1208 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1209
1210 wr32(IGC_MRQC, mrqc);
1211 }
1212
1213 return 0;
1214}
1215
1216static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1217 const struct ethtool_rx_flow_spec *fsp)
1218{
1219 INIT_LIST_HEAD(&rule->list);
1220
1221 rule->action = fsp->ring_cookie;
1222 rule->location = fsp->location;
1223
1224 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1225 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1226 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci);
1227 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1228 }
1229
1230 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1231 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1232 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1233 }
1234
1235 /* Both source and destination address filters only support the full
1236 * mask.
1237 */
1238 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1239 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1240 ether_addr_copy(rule->filter.src_addr,
1241 fsp->h_u.ether_spec.h_source);
1242 }
1243
1244 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1245 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1246 ether_addr_copy(rule->filter.dst_addr,
1247 fsp->h_u.ether_spec.h_dest);
1248 }
1249
1250 /* VLAN etype matching */
1251 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
1252 rule->filter.vlan_etype = ntohs(fsp->h_ext.vlan_etype);
1253 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
1254 }
1255
1256 /* Check for user defined data */
1257 if ((fsp->flow_type & FLOW_EXT) &&
1258 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
1259 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
1260 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
1261 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
1262 }
1263
1264 /* The i225/i226 has various different filters. Flex filters provide a
1265 * way to match up to the first 128 bytes of a packet. Use them for:
1266 * a) For specific user data
1267 * b) For VLAN EtherType
1268 * c) For full TCI match
1269 * d) Or in case multiple filter criteria are set
1270 *
1271 * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters.
1272 */
1273 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
1274 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
1275 ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) &&
1276 rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) ||
1277 (rule->filter.match_flags & (rule->filter.match_flags - 1)))
1278 rule->flex = true;
1279 else
1280 rule->flex = false;
1281}
1282
1283/**
1284 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1285 * @adapter: Pointer to adapter
1286 * @rule: Rule under evaluation
1287 *
1288 * The driver doesn't support rules with multiple matches so if more than
1289 * one bit in filter flags is set, @rule is considered invalid.
1290 *
1291 * Also, if there is already another rule with the same filter in a different
1292 * location, @rule is considered invalid.
1293 *
1294 * Context: Expects adapter->nfc_rule_lock to be held by caller.
1295 *
1296 * Return: 0 in case of success, negative errno code otherwise.
1297 */
1298static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1299 struct igc_nfc_rule *rule)
1300{
1301 struct net_device *dev = adapter->netdev;
1302 u8 flags = rule->filter.match_flags;
1303 struct igc_nfc_rule *tmp;
1304
1305 if (!flags) {
1306 netdev_dbg(dev, "Rule with no match\n");
1307 return -EINVAL;
1308 }
1309
1310 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1311 if (!memcmp(&rule->filter, &tmp->filter,
1312 sizeof(rule->filter)) &&
1313 tmp->location != rule->location) {
1314 netdev_dbg(dev, "Rule already exists\n");
1315 return -EEXIST;
1316 }
1317 }
1318
1319 return 0;
1320}
1321
1322static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1323 struct ethtool_rxnfc *cmd)
1324{
1325 struct net_device *netdev = adapter->netdev;
1326 struct ethtool_rx_flow_spec *fsp =
1327 (struct ethtool_rx_flow_spec *)&cmd->fs;
1328 struct igc_nfc_rule *rule, *old_rule;
1329 int err;
1330
1331 if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1332 netdev_dbg(netdev, "N-tuple filters disabled\n");
1333 return -EOPNOTSUPP;
1334 }
1335
1336 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1337 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1338 return -EOPNOTSUPP;
1339 }
1340
1341 if (fsp->ring_cookie >= adapter->num_rx_queues) {
1342 netdev_dbg(netdev, "Invalid action\n");
1343 return -EINVAL;
1344 }
1345
1346 /* There are two ways to match the VLAN TCI:
1347 * 1. Match on PCP field and use vlan prio filter for it
1348 * 2. Match on complete TCI field and use flex filter for it
1349 */
1350 if ((fsp->flow_type & FLOW_EXT) &&
1351 fsp->m_ext.vlan_tci &&
1352 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) &&
1353 fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) {
1354 netdev_dbg(netdev, "VLAN mask not supported\n");
1355 return -EOPNOTSUPP;
1356 }
1357
1358 /* VLAN EtherType can only be matched by full mask. */
1359 if ((fsp->flow_type & FLOW_EXT) &&
1360 fsp->m_ext.vlan_etype &&
1361 fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) {
1362 netdev_dbg(netdev, "VLAN EtherType mask not supported\n");
1363 return -EOPNOTSUPP;
1364 }
1365
1366 if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1367 netdev_dbg(netdev, "Invalid location\n");
1368 return -EINVAL;
1369 }
1370
1371 rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1372 if (!rule)
1373 return -ENOMEM;
1374
1375 igc_ethtool_init_nfc_rule(rule, fsp);
1376
1377 mutex_lock(&adapter->nfc_rule_lock);
1378
1379 err = igc_ethtool_check_nfc_rule(adapter, rule);
1380 if (err)
1381 goto err;
1382
1383 old_rule = igc_get_nfc_rule(adapter, fsp->location);
1384 if (old_rule)
1385 igc_del_nfc_rule(adapter, old_rule);
1386
1387 err = igc_add_nfc_rule(adapter, rule);
1388 if (err)
1389 goto err;
1390
1391 mutex_unlock(&adapter->nfc_rule_lock);
1392 return 0;
1393
1394err:
1395 mutex_unlock(&adapter->nfc_rule_lock);
1396 kfree(rule);
1397 return err;
1398}
1399
1400static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1401 struct ethtool_rxnfc *cmd)
1402{
1403 struct ethtool_rx_flow_spec *fsp =
1404 (struct ethtool_rx_flow_spec *)&cmd->fs;
1405 struct igc_nfc_rule *rule;
1406
1407 mutex_lock(&adapter->nfc_rule_lock);
1408
1409 rule = igc_get_nfc_rule(adapter, fsp->location);
1410 if (!rule) {
1411 mutex_unlock(&adapter->nfc_rule_lock);
1412 return -EINVAL;
1413 }
1414
1415 igc_del_nfc_rule(adapter, rule);
1416
1417 mutex_unlock(&adapter->nfc_rule_lock);
1418 return 0;
1419}
1420
1421static int igc_ethtool_set_rxnfc(struct net_device *dev,
1422 struct ethtool_rxnfc *cmd)
1423{
1424 struct igc_adapter *adapter = netdev_priv(dev);
1425
1426 switch (cmd->cmd) {
1427 case ETHTOOL_SRXFH:
1428 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1429 case ETHTOOL_SRXCLSRLINS:
1430 return igc_ethtool_add_nfc_rule(adapter, cmd);
1431 case ETHTOOL_SRXCLSRLDEL:
1432 return igc_ethtool_del_nfc_rule(adapter, cmd);
1433 default:
1434 return -EOPNOTSUPP;
1435 }
1436}
1437
1438void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1439{
1440 struct igc_hw *hw = &adapter->hw;
1441 u32 reg = IGC_RETA(0);
1442 u32 shift = 0;
1443 int i = 0;
1444
1445 while (i < IGC_RETA_SIZE) {
1446 u32 val = 0;
1447 int j;
1448
1449 for (j = 3; j >= 0; j--) {
1450 val <<= 8;
1451 val |= adapter->rss_indir_tbl[i + j];
1452 }
1453
1454 wr32(reg, val << shift);
1455 reg += 4;
1456 i += 4;
1457 }
1458}
1459
1460static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1461{
1462 return IGC_RETA_SIZE;
1463}
1464
1465static int igc_ethtool_get_rxfh(struct net_device *netdev,
1466 struct ethtool_rxfh_param *rxfh)
1467{
1468 struct igc_adapter *adapter = netdev_priv(netdev);
1469 int i;
1470
1471 rxfh->hfunc = ETH_RSS_HASH_TOP;
1472 if (!rxfh->indir)
1473 return 0;
1474 for (i = 0; i < IGC_RETA_SIZE; i++)
1475 rxfh->indir[i] = adapter->rss_indir_tbl[i];
1476
1477 return 0;
1478}
1479
1480static int igc_ethtool_set_rxfh(struct net_device *netdev,
1481 struct ethtool_rxfh_param *rxfh,
1482 struct netlink_ext_ack *extack)
1483{
1484 struct igc_adapter *adapter = netdev_priv(netdev);
1485 u32 num_queues;
1486 int i;
1487
1488 /* We do not allow change in unsupported parameters */
1489 if (rxfh->key ||
1490 (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1491 rxfh->hfunc != ETH_RSS_HASH_TOP))
1492 return -EOPNOTSUPP;
1493 if (!rxfh->indir)
1494 return 0;
1495
1496 num_queues = adapter->rss_queues;
1497
1498 /* Verify user input. */
1499 for (i = 0; i < IGC_RETA_SIZE; i++)
1500 if (rxfh->indir[i] >= num_queues)
1501 return -EINVAL;
1502
1503 for (i = 0; i < IGC_RETA_SIZE; i++)
1504 adapter->rss_indir_tbl[i] = rxfh->indir[i];
1505
1506 igc_write_rss_indir_tbl(adapter);
1507
1508 return 0;
1509}
1510
1511static void igc_ethtool_get_channels(struct net_device *netdev,
1512 struct ethtool_channels *ch)
1513{
1514 struct igc_adapter *adapter = netdev_priv(netdev);
1515
1516 /* Report maximum channels */
1517 ch->max_combined = igc_get_max_rss_queues(adapter);
1518
1519 /* Report info for other vector */
1520 if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1521 ch->max_other = NON_Q_VECTORS;
1522 ch->other_count = NON_Q_VECTORS;
1523 }
1524
1525 ch->combined_count = adapter->rss_queues;
1526}
1527
1528static int igc_ethtool_set_channels(struct net_device *netdev,
1529 struct ethtool_channels *ch)
1530{
1531 struct igc_adapter *adapter = netdev_priv(netdev);
1532 unsigned int count = ch->combined_count;
1533 unsigned int max_combined = 0;
1534
1535 /* Verify they are not requesting separate vectors */
1536 if (!count || ch->rx_count || ch->tx_count)
1537 return -EINVAL;
1538
1539 /* Verify other_count is valid and has not been changed */
1540 if (ch->other_count != NON_Q_VECTORS)
1541 return -EINVAL;
1542
1543 /* Do not allow channel reconfiguration when mqprio is enabled */
1544 if (adapter->strict_priority_enable)
1545 return -EINVAL;
1546
1547 /* Verify the number of channels doesn't exceed hw limits */
1548 max_combined = igc_get_max_rss_queues(adapter);
1549 if (count > max_combined)
1550 return -EINVAL;
1551
1552 if (count != adapter->rss_queues) {
1553 adapter->rss_queues = count;
1554 igc_set_flag_queue_pairs(adapter, max_combined);
1555
1556 /* Hardware has to reinitialize queues and interrupts to
1557 * match the new configuration.
1558 */
1559 return igc_reinit_queues(adapter);
1560 }
1561
1562 return 0;
1563}
1564
1565static int igc_ethtool_get_ts_info(struct net_device *dev,
1566 struct kernel_ethtool_ts_info *info)
1567{
1568 struct igc_adapter *adapter = netdev_priv(dev);
1569
1570 if (adapter->ptp_clock)
1571 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1572
1573 switch (adapter->hw.mac.type) {
1574 case igc_i225:
1575 info->so_timestamping =
1576 SOF_TIMESTAMPING_TX_SOFTWARE |
1577 SOF_TIMESTAMPING_TX_HARDWARE |
1578 SOF_TIMESTAMPING_RX_HARDWARE |
1579 SOF_TIMESTAMPING_RAW_HARDWARE;
1580
1581 info->tx_types =
1582 BIT(HWTSTAMP_TX_OFF) |
1583 BIT(HWTSTAMP_TX_ON);
1584
1585 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1586 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1587
1588 return 0;
1589 default:
1590 return -EOPNOTSUPP;
1591 }
1592}
1593
1594static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1595{
1596 struct igc_adapter *adapter = netdev_priv(netdev);
1597 u32 priv_flags = 0;
1598
1599 if (adapter->flags & IGC_FLAG_RX_LEGACY)
1600 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1601
1602 return priv_flags;
1603}
1604
1605static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1606{
1607 struct igc_adapter *adapter = netdev_priv(netdev);
1608 unsigned int flags = adapter->flags;
1609
1610 flags &= ~IGC_FLAG_RX_LEGACY;
1611 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1612 flags |= IGC_FLAG_RX_LEGACY;
1613
1614 if (flags != adapter->flags) {
1615 adapter->flags = flags;
1616
1617 /* reset interface to repopulate queues */
1618 if (netif_running(netdev))
1619 igc_reinit_locked(adapter);
1620 }
1621
1622 return 0;
1623}
1624
1625static int igc_ethtool_get_eee(struct net_device *netdev,
1626 struct ethtool_keee *edata)
1627{
1628 struct igc_adapter *adapter = netdev_priv(netdev);
1629 struct igc_hw *hw = &adapter->hw;
1630 struct igc_phy_info *phy = &hw->phy;
1631 u16 eee_advert, eee_lp_advert;
1632 u32 eeer, ret_val;
1633
1634 /* EEE supported */
1635 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
1636 edata->supported);
1637 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1638 edata->supported);
1639 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
1640 edata->supported);
1641
1642 /* EEE Advertisement 1 - reg 7.60 */
1643 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1644 MMD_DEVADDR_SHIFT) |
1645 IGC_ANEG_EEE_AB1,
1646 &eee_advert);
1647 if (ret_val) {
1648 netdev_err(adapter->netdev,
1649 "Failed to read IEEE 7.60 register\n");
1650 return -EINVAL;
1651 }
1652
1653 if (eee_advert & IGC_EEE_1000BT_MASK)
1654 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1655 edata->advertised);
1656
1657 if (eee_advert & IGC_EEE_100BT_MASK)
1658 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
1659 edata->advertised);
1660
1661 /* EEE Advertisement 2 - reg 7.62 */
1662 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1663 MMD_DEVADDR_SHIFT) |
1664 IGC_ANEG_EEE_AB2,
1665 &eee_advert);
1666 if (ret_val) {
1667 netdev_err(adapter->netdev,
1668 "Failed to read IEEE 7.62 register\n");
1669 return -EINVAL;
1670 }
1671
1672 if (eee_advert & IGC_EEE_2500BT_MASK)
1673 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
1674 edata->advertised);
1675
1676 /* EEE Link-Partner Ability 1 - reg 7.61 */
1677 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1678 MMD_DEVADDR_SHIFT) |
1679 IGC_ANEG_EEE_LP_AB1,
1680 &eee_lp_advert);
1681 if (ret_val) {
1682 netdev_err(adapter->netdev,
1683 "Failed to read IEEE 7.61 register\n");
1684 return -EINVAL;
1685 }
1686
1687 if (eee_lp_advert & IGC_LP_EEE_1000BT_MASK)
1688 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1689 edata->lp_advertised);
1690
1691 if (eee_lp_advert & IGC_LP_EEE_100BT_MASK)
1692 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
1693 edata->lp_advertised);
1694
1695 /* EEE Link-Partner Ability 2 - reg 7.63 */
1696 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<
1697 MMD_DEVADDR_SHIFT) |
1698 IGC_ANEG_EEE_LP_AB2,
1699 &eee_lp_advert);
1700 if (ret_val) {
1701 netdev_err(adapter->netdev,
1702 "Failed to read IEEE 7.63 register\n");
1703 return -EINVAL;
1704 }
1705
1706 if (eee_lp_advert & IGC_LP_EEE_2500BT_MASK)
1707 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
1708 edata->lp_advertised);
1709
1710 eeer = rd32(IGC_EEER);
1711
1712 /* EEE status on negotiated link */
1713 if (eeer & IGC_EEER_EEE_NEG)
1714 edata->eee_active = true;
1715
1716 if (eeer & IGC_EEER_TX_LPI_EN)
1717 edata->tx_lpi_enabled = true;
1718
1719 edata->eee_enabled = hw->dev_spec._base.eee_enable;
1720
1721 /* Report correct negotiated EEE status for devices that
1722 * wrongly report EEE at half-duplex
1723 */
1724 if (adapter->link_duplex == HALF_DUPLEX) {
1725 edata->eee_enabled = false;
1726 edata->eee_active = false;
1727 edata->tx_lpi_enabled = false;
1728 linkmode_zero(edata->advertised);
1729 }
1730
1731 return 0;
1732}
1733
1734static int igc_ethtool_set_eee(struct net_device *netdev,
1735 struct ethtool_keee *edata)
1736{
1737 struct igc_adapter *adapter = netdev_priv(netdev);
1738 struct igc_hw *hw = &adapter->hw;
1739 struct ethtool_keee eee_curr;
1740 s32 ret_val;
1741
1742 memset(&eee_curr, 0, sizeof(struct ethtool_keee));
1743
1744 ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1745 if (ret_val) {
1746 netdev_err(netdev,
1747 "Problem setting EEE advertisement options\n");
1748 return -EINVAL;
1749 }
1750
1751 if (eee_curr.eee_enabled) {
1752 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1753 netdev_err(netdev,
1754 "Setting EEE tx-lpi is not supported\n");
1755 return -EINVAL;
1756 }
1757
1758 /* Tx LPI timer is not implemented currently */
1759 if (edata->tx_lpi_timer) {
1760 netdev_err(netdev,
1761 "Setting EEE Tx LPI timer is not supported\n");
1762 return -EINVAL;
1763 }
1764 } else if (!edata->eee_enabled) {
1765 netdev_err(netdev,
1766 "Setting EEE options are not supported with EEE disabled\n");
1767 return -EINVAL;
1768 }
1769
1770 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1771 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1772 adapter->flags |= IGC_FLAG_EEE;
1773
1774 /* reset link */
1775 if (netif_running(netdev))
1776 igc_reinit_locked(adapter);
1777 else
1778 igc_reset(adapter);
1779 }
1780
1781 return 0;
1782}
1783
1784static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1785 struct ethtool_link_ksettings *cmd)
1786{
1787 struct igc_adapter *adapter = netdev_priv(netdev);
1788 struct igc_hw *hw = &adapter->hw;
1789 u32 status;
1790 u32 speed;
1791
1792 ethtool_link_ksettings_zero_link_mode(cmd, supported);
1793 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1794
1795 /* supported link modes */
1796 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1797 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1798 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1799 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1800 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1801 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1802
1803 /* twisted pair */
1804 cmd->base.port = PORT_TP;
1805 cmd->base.phy_address = hw->phy.addr;
1806 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
1807 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
1808
1809 /* advertising link modes */
1810 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1811 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1812 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1813 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1814 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1815 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1816 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1817 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1818 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1819 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1820 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1821 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1822
1823 /* set autoneg settings */
1824 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1825 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
1826
1827 /* Set pause flow control settings */
1828 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1829
1830 switch (hw->fc.requested_mode) {
1831 case igc_fc_full:
1832 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1833 break;
1834 case igc_fc_rx_pause:
1835 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1836 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1837 Asym_Pause);
1838 break;
1839 case igc_fc_tx_pause:
1840 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1841 Asym_Pause);
1842 break;
1843 default:
1844 break;
1845 }
1846
1847 status = pm_runtime_suspended(&adapter->pdev->dev) ?
1848 0 : rd32(IGC_STATUS);
1849
1850 if (status & IGC_STATUS_LU) {
1851 if (status & IGC_STATUS_SPEED_1000) {
1852 /* For I225, STATUS will indicate 1G speed in both
1853 * 1 Gbps and 2.5 Gbps link modes.
1854 * An additional bit is used
1855 * to differentiate between 1 Gbps and 2.5 Gbps.
1856 */
1857 if (hw->mac.type == igc_i225 &&
1858 (status & IGC_STATUS_SPEED_2500)) {
1859 speed = SPEED_2500;
1860 } else {
1861 speed = SPEED_1000;
1862 }
1863 } else if (status & IGC_STATUS_SPEED_100) {
1864 speed = SPEED_100;
1865 } else {
1866 speed = SPEED_10;
1867 }
1868 if ((status & IGC_STATUS_FD) ||
1869 hw->phy.media_type != igc_media_type_copper)
1870 cmd->base.duplex = DUPLEX_FULL;
1871 else
1872 cmd->base.duplex = DUPLEX_HALF;
1873 } else {
1874 speed = SPEED_UNKNOWN;
1875 cmd->base.duplex = DUPLEX_UNKNOWN;
1876 }
1877 cmd->base.speed = speed;
1878 cmd->base.autoneg = AUTONEG_ENABLE;
1879
1880 /* MDI-X => 2; MDI =>1; Invalid =>0 */
1881 if (hw->phy.media_type == igc_media_type_copper)
1882 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1883 ETH_TP_MDI;
1884 else
1885 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1886
1887 if (hw->phy.mdix == AUTO_ALL_MODES)
1888 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1889 else
1890 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1891
1892 return 0;
1893}
1894
1895static int
1896igc_ethtool_set_link_ksettings(struct net_device *netdev,
1897 const struct ethtool_link_ksettings *cmd)
1898{
1899 struct igc_adapter *adapter = netdev_priv(netdev);
1900 struct net_device *dev = adapter->netdev;
1901 struct igc_hw *hw = &adapter->hw;
1902 u16 advertised = 0;
1903
1904 /* When adapter in resetting mode, autoneg/speed/duplex
1905 * cannot be changed
1906 */
1907 if (igc_check_reset_block(hw)) {
1908 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1909 return -EINVAL;
1910 }
1911
1912 /* MDI setting is only allowed when autoneg enabled because
1913 * some hardware doesn't allow MDI setting when speed or
1914 * duplex is forced.
1915 */
1916 if (cmd->base.eth_tp_mdix_ctrl) {
1917 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1918 cmd->base.autoneg != AUTONEG_ENABLE) {
1919 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1920 return -EINVAL;
1921 }
1922 }
1923
1924 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1925 usleep_range(1000, 2000);
1926
1927 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1928 2500baseT_Full))
1929 advertised |= ADVERTISE_2500_FULL;
1930
1931 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1932 1000baseT_Full))
1933 advertised |= ADVERTISE_1000_FULL;
1934
1935 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1936 100baseT_Full))
1937 advertised |= ADVERTISE_100_FULL;
1938
1939 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1940 100baseT_Half))
1941 advertised |= ADVERTISE_100_HALF;
1942
1943 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1944 10baseT_Full))
1945 advertised |= ADVERTISE_10_FULL;
1946
1947 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1948 10baseT_Half))
1949 advertised |= ADVERTISE_10_HALF;
1950
1951 if (cmd->base.autoneg == AUTONEG_ENABLE) {
1952 hw->phy.autoneg_advertised = advertised;
1953 if (adapter->fc_autoneg)
1954 hw->fc.requested_mode = igc_fc_default;
1955 } else {
1956 netdev_info(dev, "Force mode currently not supported\n");
1957 }
1958
1959 /* MDI-X => 2; MDI => 1; Auto => 3 */
1960 if (cmd->base.eth_tp_mdix_ctrl) {
1961 /* fix up the value for auto (3 => 0) as zero is mapped
1962 * internally to auto
1963 */
1964 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1965 hw->phy.mdix = AUTO_ALL_MODES;
1966 else
1967 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1968 }
1969
1970 /* reset the link */
1971 if (netif_running(adapter->netdev)) {
1972 igc_down(adapter);
1973 igc_up(adapter);
1974 } else {
1975 igc_reset(adapter);
1976 }
1977
1978 clear_bit(__IGC_RESETTING, &adapter->state);
1979
1980 return 0;
1981}
1982
1983static void igc_ethtool_diag_test(struct net_device *netdev,
1984 struct ethtool_test *eth_test, u64 *data)
1985{
1986 struct igc_adapter *adapter = netdev_priv(netdev);
1987 bool if_running = netif_running(netdev);
1988
1989 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1990 netdev_info(adapter->netdev, "Offline testing starting");
1991 set_bit(__IGC_TESTING, &adapter->state);
1992
1993 /* Link test performed before hardware reset so autoneg doesn't
1994 * interfere with test result
1995 */
1996 if (!igc_link_test(adapter, &data[TEST_LINK]))
1997 eth_test->flags |= ETH_TEST_FL_FAILED;
1998
1999 if (if_running)
2000 igc_close(netdev);
2001 else
2002 igc_reset(adapter);
2003
2004 netdev_info(adapter->netdev, "Register testing starting");
2005 if (!igc_reg_test(adapter, &data[TEST_REG]))
2006 eth_test->flags |= ETH_TEST_FL_FAILED;
2007
2008 igc_reset(adapter);
2009
2010 netdev_info(adapter->netdev, "EEPROM testing starting");
2011 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
2012 eth_test->flags |= ETH_TEST_FL_FAILED;
2013
2014 igc_reset(adapter);
2015
2016 /* loopback and interrupt tests
2017 * will be implemented in the future
2018 */
2019 data[TEST_LOOP] = 0;
2020 data[TEST_IRQ] = 0;
2021
2022 clear_bit(__IGC_TESTING, &adapter->state);
2023 if (if_running)
2024 igc_open(netdev);
2025 } else {
2026 netdev_info(adapter->netdev, "Online testing starting");
2027
2028 /* register, eeprom, intr and loopback tests not run online */
2029 data[TEST_REG] = 0;
2030 data[TEST_EEP] = 0;
2031 data[TEST_IRQ] = 0;
2032 data[TEST_LOOP] = 0;
2033
2034 if (!igc_link_test(adapter, &data[TEST_LINK]))
2035 eth_test->flags |= ETH_TEST_FL_FAILED;
2036 }
2037
2038 msleep_interruptible(4 * 1000);
2039}
2040
2041static const struct ethtool_ops igc_ethtool_ops = {
2042 .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
2043 .get_drvinfo = igc_ethtool_get_drvinfo,
2044 .get_regs_len = igc_ethtool_get_regs_len,
2045 .get_regs = igc_ethtool_get_regs,
2046 .get_wol = igc_ethtool_get_wol,
2047 .set_wol = igc_ethtool_set_wol,
2048 .get_msglevel = igc_ethtool_get_msglevel,
2049 .set_msglevel = igc_ethtool_set_msglevel,
2050 .nway_reset = igc_ethtool_nway_reset,
2051 .get_link = igc_ethtool_get_link,
2052 .get_eeprom_len = igc_ethtool_get_eeprom_len,
2053 .get_eeprom = igc_ethtool_get_eeprom,
2054 .set_eeprom = igc_ethtool_set_eeprom,
2055 .get_ringparam = igc_ethtool_get_ringparam,
2056 .set_ringparam = igc_ethtool_set_ringparam,
2057 .get_pauseparam = igc_ethtool_get_pauseparam,
2058 .set_pauseparam = igc_ethtool_set_pauseparam,
2059 .get_strings = igc_ethtool_get_strings,
2060 .get_sset_count = igc_ethtool_get_sset_count,
2061 .get_ethtool_stats = igc_ethtool_get_stats,
2062 .get_coalesce = igc_ethtool_get_coalesce,
2063 .set_coalesce = igc_ethtool_set_coalesce,
2064 .get_rxnfc = igc_ethtool_get_rxnfc,
2065 .set_rxnfc = igc_ethtool_set_rxnfc,
2066 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size,
2067 .get_rxfh = igc_ethtool_get_rxfh,
2068 .set_rxfh = igc_ethtool_set_rxfh,
2069 .get_ts_info = igc_ethtool_get_ts_info,
2070 .get_channels = igc_ethtool_get_channels,
2071 .set_channels = igc_ethtool_set_channels,
2072 .get_priv_flags = igc_ethtool_get_priv_flags,
2073 .set_priv_flags = igc_ethtool_set_priv_flags,
2074 .get_eee = igc_ethtool_get_eee,
2075 .set_eee = igc_ethtool_set_eee,
2076 .get_link_ksettings = igc_ethtool_get_link_ksettings,
2077 .set_link_ksettings = igc_ethtool_set_link_ksettings,
2078 .self_test = igc_ethtool_diag_test,
2079};
2080
2081void igc_ethtool_set_ops(struct net_device *netdev)
2082{
2083 netdev->ethtool_ops = &igc_ethtool_ops;
2084}