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(dev: netdev);
135 struct igc_hw *hw = &adapter->hw;
136 u16 nvm_version = 0;
137 u16 gphy_version;
138
139 strscpy(p: drvinfo->driver, q: igc_driver_name, size: 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(buf: adapter->fw_version,
148 size: sizeof(adapter->fw_version),
149 fmt: "%x:%x",
150 nvm_version,
151 gphy_version);
152
153 strscpy(p: drvinfo->fw_version, q: adapter->fw_version,
154 size: sizeof(drvinfo->fw_version));
155
156 strscpy(p: drvinfo->bus_info, q: pci_name(pdev: adapter->pdev),
157 size: 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(dev: 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(dev: 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(dev: 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(dev: &adapter->pdev->dev, enable: 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(dev: 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(dev: 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(dev: netdev);
427
428 if (netif_running(dev: 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(dev: 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(dev: 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(dev: 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(dev: 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(n: last_word - first_word + 1, size: 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(objp: 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(dev: 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(size: 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(objp: 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(dev: 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(dev: 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(nr: __IGC_RESETTING, addr: &adapter->state))
614 usleep_range(min: 1000, max: 2000);
615
616 if (!netif_running(dev: 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(ring: &temp_ring[i]);
651 if (err) {
652 while (i) {
653 i--;
654 igc_free_tx_resources(ring: &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(ring: 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(ring: &temp_ring[i]);
677 if (err) {
678 while (i) {
679 i--;
680 igc_free_rx_resources(ring: &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(ring: 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(addr: temp_ring);
698clear_reset:
699 clear_bit(nr: __IGC_RESETTING, addr: &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(dev: 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(dev: 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(nr: __IGC_RESETTING, addr: &adapter->state))
732 usleep_range(min: 1000, max: 2000);
733
734 if (adapter->fc_autoneg == AUTONEG_ENABLE) {
735 hw->fc.requested_mode = igc_fc_default;
736 if (netif_running(dev: 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(nr: __IGC_RESETTING, addr: &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(dev: 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_sprintf(data: &p, fmt: "%s",
777 igc_gstrings_stats[i].stat_string);
778 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
779 ethtool_sprintf(data: &p, fmt: "%s",
780 igc_gstrings_net_stats[i].stat_string);
781 for (i = 0; i < adapter->num_tx_queues; i++) {
782 ethtool_sprintf(data: &p, fmt: "tx_queue_%u_packets", i);
783 ethtool_sprintf(data: &p, fmt: "tx_queue_%u_bytes", i);
784 ethtool_sprintf(data: &p, fmt: "tx_queue_%u_restart", i);
785 }
786 for (i = 0; i < adapter->num_rx_queues; i++) {
787 ethtool_sprintf(data: &p, fmt: "rx_queue_%u_packets", i);
788 ethtool_sprintf(data: &p, fmt: "rx_queue_%u_bytes", i);
789 ethtool_sprintf(data: &p, fmt: "rx_queue_%u_drops", i);
790 ethtool_sprintf(data: &p, fmt: "rx_queue_%u_csum_err", i);
791 ethtool_sprintf(data: &p, fmt: "rx_queue_%u_alloc_failed", i);
792 }
793 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
794 break;
795 case ETH_SS_PRIV_FLAGS:
796 memcpy(data, igc_priv_flags_strings,
797 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
798 break;
799 }
800}
801
802static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
803{
804 switch (sset) {
805 case ETH_SS_STATS:
806 return IGC_STATS_LEN;
807 case ETH_SS_TEST:
808 return IGC_TEST_LEN;
809 case ETH_SS_PRIV_FLAGS:
810 return IGC_PRIV_FLAGS_STR_LEN;
811 default:
812 return -ENOTSUPP;
813 }
814}
815
816static void igc_ethtool_get_stats(struct net_device *netdev,
817 struct ethtool_stats *stats, u64 *data)
818{
819 struct igc_adapter *adapter = netdev_priv(dev: netdev);
820 struct rtnl_link_stats64 *net_stats = &adapter->stats64;
821 unsigned int start;
822 struct igc_ring *ring;
823 int i, j;
824 char *p;
825
826 spin_lock(lock: &adapter->stats64_lock);
827 igc_update_stats(adapter);
828
829 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
830 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
831 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
832 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
833 }
834 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
835 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
836 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
837 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
838 }
839 for (j = 0; j < adapter->num_tx_queues; j++) {
840 u64 restart2;
841
842 ring = adapter->tx_ring[j];
843 do {
844 start = u64_stats_fetch_begin(syncp: &ring->tx_syncp);
845 data[i] = ring->tx_stats.packets;
846 data[i + 1] = ring->tx_stats.bytes;
847 data[i + 2] = ring->tx_stats.restart_queue;
848 } while (u64_stats_fetch_retry(syncp: &ring->tx_syncp, start));
849 do {
850 start = u64_stats_fetch_begin(syncp: &ring->tx_syncp2);
851 restart2 = ring->tx_stats.restart_queue2;
852 } while (u64_stats_fetch_retry(syncp: &ring->tx_syncp2, start));
853 data[i + 2] += restart2;
854
855 i += IGC_TX_QUEUE_STATS_LEN;
856 }
857 for (j = 0; j < adapter->num_rx_queues; j++) {
858 ring = adapter->rx_ring[j];
859 do {
860 start = u64_stats_fetch_begin(syncp: &ring->rx_syncp);
861 data[i] = ring->rx_stats.packets;
862 data[i + 1] = ring->rx_stats.bytes;
863 data[i + 2] = ring->rx_stats.drops;
864 data[i + 3] = ring->rx_stats.csum_err;
865 data[i + 4] = ring->rx_stats.alloc_failed;
866 } while (u64_stats_fetch_retry(syncp: &ring->rx_syncp, start));
867 i += IGC_RX_QUEUE_STATS_LEN;
868 }
869 spin_unlock(lock: &adapter->stats64_lock);
870}
871
872static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter)
873{
874 return (adapter->rx_itr_setting <= 3) ?
875 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;
876}
877
878static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)
879{
880 return (adapter->tx_itr_setting <= 3) ?
881 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;
882}
883
884static int igc_ethtool_get_coalesce(struct net_device *netdev,
885 struct ethtool_coalesce *ec,
886 struct kernel_ethtool_coalesce *kernel_coal,
887 struct netlink_ext_ack *extack)
888{
889 struct igc_adapter *adapter = netdev_priv(dev: netdev);
890
891 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);
892 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);
893
894 return 0;
895}
896
897static int igc_ethtool_set_coalesce(struct net_device *netdev,
898 struct ethtool_coalesce *ec,
899 struct kernel_ethtool_coalesce *kernel_coal,
900 struct netlink_ext_ack *extack)
901{
902 struct igc_adapter *adapter = netdev_priv(dev: netdev);
903 int i;
904
905 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
906 (ec->rx_coalesce_usecs > 3 &&
907 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
908 ec->rx_coalesce_usecs == 2)
909 return -EINVAL;
910
911 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
912 (ec->tx_coalesce_usecs > 3 &&
913 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
914 ec->tx_coalesce_usecs == 2)
915 return -EINVAL;
916
917 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) &&
918 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) {
919 NL_SET_ERR_MSG_MOD(extack,
920 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs");
921 return -EINVAL;
922 }
923
924 /* If ITR is disabled, disable DMAC */
925 if (ec->rx_coalesce_usecs == 0) {
926 if (adapter->flags & IGC_FLAG_DMAC)
927 adapter->flags &= ~IGC_FLAG_DMAC;
928 }
929
930 /* convert to rate of irq's per second */
931 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
932 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
933 else
934 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
935
936 /* convert to rate of irq's per second */
937 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
938 adapter->tx_itr_setting = adapter->rx_itr_setting;
939 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
940 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
941 else
942 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
943
944 for (i = 0; i < adapter->num_q_vectors; i++) {
945 struct igc_q_vector *q_vector = adapter->q_vector[i];
946
947 q_vector->tx.work_limit = adapter->tx_work_limit;
948 if (q_vector->rx.ring)
949 q_vector->itr_val = adapter->rx_itr_setting;
950 else
951 q_vector->itr_val = adapter->tx_itr_setting;
952 if (q_vector->itr_val && q_vector->itr_val <= 3)
953 q_vector->itr_val = IGC_START_ITR;
954 q_vector->set_itr = 1;
955 }
956
957 return 0;
958}
959
960#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
961static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
962 struct ethtool_rxnfc *cmd)
963{
964 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
965 struct igc_nfc_rule *rule = NULL;
966
967 cmd->data = IGC_MAX_RXNFC_RULES;
968
969 mutex_lock(&adapter->nfc_rule_lock);
970
971 rule = igc_get_nfc_rule(adapter, location: fsp->location);
972 if (!rule)
973 goto out;
974
975 fsp->flow_type = ETHER_FLOW;
976 fsp->ring_cookie = rule->action;
977
978 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
979 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
980 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
981 }
982
983 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
984 fsp->flow_type |= FLOW_EXT;
985 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
986 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
987 }
988
989 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
990 ether_addr_copy(dst: fsp->h_u.ether_spec.h_dest,
991 src: rule->filter.dst_addr);
992 eth_broadcast_addr(addr: fsp->m_u.ether_spec.h_dest);
993 }
994
995 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
996 ether_addr_copy(dst: fsp->h_u.ether_spec.h_source,
997 src: rule->filter.src_addr);
998 eth_broadcast_addr(addr: fsp->m_u.ether_spec.h_source);
999 }
1000
1001 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
1002 fsp->flow_type |= FLOW_EXT;
1003 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
1004 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
1005 }
1006
1007 mutex_unlock(lock: &adapter->nfc_rule_lock);
1008 return 0;
1009
1010out:
1011 mutex_unlock(lock: &adapter->nfc_rule_lock);
1012 return -EINVAL;
1013}
1014
1015static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
1016 struct ethtool_rxnfc *cmd,
1017 u32 *rule_locs)
1018{
1019 struct igc_nfc_rule *rule;
1020 int cnt = 0;
1021
1022 cmd->data = IGC_MAX_RXNFC_RULES;
1023
1024 mutex_lock(&adapter->nfc_rule_lock);
1025
1026 list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
1027 if (cnt == cmd->rule_cnt) {
1028 mutex_unlock(lock: &adapter->nfc_rule_lock);
1029 return -EMSGSIZE;
1030 }
1031 rule_locs[cnt] = rule->location;
1032 cnt++;
1033 }
1034
1035 mutex_unlock(lock: &adapter->nfc_rule_lock);
1036
1037 cmd->rule_cnt = cnt;
1038
1039 return 0;
1040}
1041
1042static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1043 struct ethtool_rxnfc *cmd)
1044{
1045 cmd->data = 0;
1046
1047 /* Report default options for RSS on igc */
1048 switch (cmd->flow_type) {
1049 case TCP_V4_FLOW:
1050 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1051 fallthrough;
1052 case UDP_V4_FLOW:
1053 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1054 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1055 fallthrough;
1056 case SCTP_V4_FLOW:
1057 case AH_ESP_V4_FLOW:
1058 case AH_V4_FLOW:
1059 case ESP_V4_FLOW:
1060 case IPV4_FLOW:
1061 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1062 break;
1063 case TCP_V6_FLOW:
1064 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1065 fallthrough;
1066 case UDP_V6_FLOW:
1067 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1068 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1069 fallthrough;
1070 case SCTP_V6_FLOW:
1071 case AH_ESP_V6_FLOW:
1072 case AH_V6_FLOW:
1073 case ESP_V6_FLOW:
1074 case IPV6_FLOW:
1075 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1076 break;
1077 default:
1078 return -EINVAL;
1079 }
1080
1081 return 0;
1082}
1083
1084static int igc_ethtool_get_rxnfc(struct net_device *dev,
1085 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1086{
1087 struct igc_adapter *adapter = netdev_priv(dev);
1088
1089 switch (cmd->cmd) {
1090 case ETHTOOL_GRXRINGS:
1091 cmd->data = adapter->num_rx_queues;
1092 return 0;
1093 case ETHTOOL_GRXCLSRLCNT:
1094 cmd->rule_cnt = adapter->nfc_rule_count;
1095 return 0;
1096 case ETHTOOL_GRXCLSRULE:
1097 return igc_ethtool_get_nfc_rule(adapter, cmd);
1098 case ETHTOOL_GRXCLSRLALL:
1099 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1100 case ETHTOOL_GRXFH:
1101 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1102 default:
1103 return -EOPNOTSUPP;
1104 }
1105}
1106
1107#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1108 IGC_FLAG_RSS_FIELD_IPV6_UDP)
1109static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1110 struct ethtool_rxnfc *nfc)
1111{
1112 u32 flags = adapter->flags;
1113
1114 /* RSS does not support anything other than hashing
1115 * to queues on src and dst IPs and ports
1116 */
1117 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1118 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1119 return -EINVAL;
1120
1121 switch (nfc->flow_type) {
1122 case TCP_V4_FLOW:
1123 case TCP_V6_FLOW:
1124 if (!(nfc->data & RXH_IP_SRC) ||
1125 !(nfc->data & RXH_IP_DST) ||
1126 !(nfc->data & RXH_L4_B_0_1) ||
1127 !(nfc->data & RXH_L4_B_2_3))
1128 return -EINVAL;
1129 break;
1130 case UDP_V4_FLOW:
1131 if (!(nfc->data & RXH_IP_SRC) ||
1132 !(nfc->data & RXH_IP_DST))
1133 return -EINVAL;
1134 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1135 case 0:
1136 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1137 break;
1138 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1139 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1140 break;
1141 default:
1142 return -EINVAL;
1143 }
1144 break;
1145 case UDP_V6_FLOW:
1146 if (!(nfc->data & RXH_IP_SRC) ||
1147 !(nfc->data & RXH_IP_DST))
1148 return -EINVAL;
1149 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1150 case 0:
1151 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1152 break;
1153 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1154 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1155 break;
1156 default:
1157 return -EINVAL;
1158 }
1159 break;
1160 case AH_ESP_V4_FLOW:
1161 case AH_V4_FLOW:
1162 case ESP_V4_FLOW:
1163 case SCTP_V4_FLOW:
1164 case AH_ESP_V6_FLOW:
1165 case AH_V6_FLOW:
1166 case ESP_V6_FLOW:
1167 case SCTP_V6_FLOW:
1168 if (!(nfc->data & RXH_IP_SRC) ||
1169 !(nfc->data & RXH_IP_DST) ||
1170 (nfc->data & RXH_L4_B_0_1) ||
1171 (nfc->data & RXH_L4_B_2_3))
1172 return -EINVAL;
1173 break;
1174 default:
1175 return -EINVAL;
1176 }
1177
1178 /* if we changed something we need to update flags */
1179 if (flags != adapter->flags) {
1180 struct igc_hw *hw = &adapter->hw;
1181 u32 mrqc = rd32(IGC_MRQC);
1182
1183 if ((flags & UDP_RSS_FLAGS) &&
1184 !(adapter->flags & UDP_RSS_FLAGS))
1185 netdev_err(dev: adapter->netdev,
1186 format: "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1187
1188 adapter->flags = flags;
1189
1190 /* Perform hash on these packet types */
1191 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1192 IGC_MRQC_RSS_FIELD_IPV4_TCP |
1193 IGC_MRQC_RSS_FIELD_IPV6 |
1194 IGC_MRQC_RSS_FIELD_IPV6_TCP;
1195
1196 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1197 IGC_MRQC_RSS_FIELD_IPV6_UDP);
1198
1199 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1200 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1201
1202 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1203 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1204
1205 wr32(IGC_MRQC, mrqc);
1206 }
1207
1208 return 0;
1209}
1210
1211static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1212 const struct ethtool_rx_flow_spec *fsp)
1213{
1214 INIT_LIST_HEAD(list: &rule->list);
1215
1216 rule->action = fsp->ring_cookie;
1217 rule->location = fsp->location;
1218
1219 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1220 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1221 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1222 }
1223
1224 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1225 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1226 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1227 }
1228
1229 /* Both source and destination address filters only support the full
1230 * mask.
1231 */
1232 if (is_broadcast_ether_addr(addr: fsp->m_u.ether_spec.h_source)) {
1233 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1234 ether_addr_copy(dst: rule->filter.src_addr,
1235 src: fsp->h_u.ether_spec.h_source);
1236 }
1237
1238 if (is_broadcast_ether_addr(addr: fsp->m_u.ether_spec.h_dest)) {
1239 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1240 ether_addr_copy(dst: rule->filter.dst_addr,
1241 src: fsp->h_u.ether_spec.h_dest);
1242 }
1243
1244 /* VLAN etype matching */
1245 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
1246 rule->filter.vlan_etype = fsp->h_ext.vlan_etype;
1247 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
1248 }
1249
1250 /* Check for user defined data */
1251 if ((fsp->flow_type & FLOW_EXT) &&
1252 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
1253 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
1254 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
1255 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
1256 }
1257
1258 /* When multiple filter options or user data or vlan etype is set, use a
1259 * flex filter.
1260 */
1261 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
1262 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
1263 (rule->filter.match_flags & (rule->filter.match_flags - 1)))
1264 rule->flex = true;
1265 else
1266 rule->flex = false;
1267}
1268
1269/**
1270 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1271 * @adapter: Pointer to adapter
1272 * @rule: Rule under evaluation
1273 *
1274 * The driver doesn't support rules with multiple matches so if more than
1275 * one bit in filter flags is set, @rule is considered invalid.
1276 *
1277 * Also, if there is already another rule with the same filter in a different
1278 * location, @rule is considered invalid.
1279 *
1280 * Context: Expects adapter->nfc_rule_lock to be held by caller.
1281 *
1282 * Return: 0 in case of success, negative errno code otherwise.
1283 */
1284static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1285 struct igc_nfc_rule *rule)
1286{
1287 struct net_device *dev = adapter->netdev;
1288 u8 flags = rule->filter.match_flags;
1289 struct igc_nfc_rule *tmp;
1290
1291 if (!flags) {
1292 netdev_dbg(dev, "Rule with no match\n");
1293 return -EINVAL;
1294 }
1295
1296 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1297 if (!memcmp(p: &rule->filter, q: &tmp->filter,
1298 size: sizeof(rule->filter)) &&
1299 tmp->location != rule->location) {
1300 netdev_dbg(dev, "Rule already exists\n");
1301 return -EEXIST;
1302 }
1303 }
1304
1305 return 0;
1306}
1307
1308static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1309 struct ethtool_rxnfc *cmd)
1310{
1311 struct net_device *netdev = adapter->netdev;
1312 struct ethtool_rx_flow_spec *fsp =
1313 (struct ethtool_rx_flow_spec *)&cmd->fs;
1314 struct igc_nfc_rule *rule, *old_rule;
1315 int err;
1316
1317 if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1318 netdev_dbg(netdev, "N-tuple filters disabled\n");
1319 return -EOPNOTSUPP;
1320 }
1321
1322 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1323 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1324 return -EOPNOTSUPP;
1325 }
1326
1327 if (fsp->ring_cookie >= adapter->num_rx_queues) {
1328 netdev_dbg(netdev, "Invalid action\n");
1329 return -EINVAL;
1330 }
1331
1332 if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1333 netdev_dbg(netdev, "Invalid location\n");
1334 return -EINVAL;
1335 }
1336
1337 rule = kzalloc(size: sizeof(*rule), GFP_KERNEL);
1338 if (!rule)
1339 return -ENOMEM;
1340
1341 igc_ethtool_init_nfc_rule(rule, fsp);
1342
1343 mutex_lock(&adapter->nfc_rule_lock);
1344
1345 err = igc_ethtool_check_nfc_rule(adapter, rule);
1346 if (err)
1347 goto err;
1348
1349 old_rule = igc_get_nfc_rule(adapter, location: fsp->location);
1350 if (old_rule)
1351 igc_del_nfc_rule(adapter, rule: old_rule);
1352
1353 err = igc_add_nfc_rule(adapter, rule);
1354 if (err)
1355 goto err;
1356
1357 mutex_unlock(lock: &adapter->nfc_rule_lock);
1358 return 0;
1359
1360err:
1361 mutex_unlock(lock: &adapter->nfc_rule_lock);
1362 kfree(objp: rule);
1363 return err;
1364}
1365
1366static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1367 struct ethtool_rxnfc *cmd)
1368{
1369 struct ethtool_rx_flow_spec *fsp =
1370 (struct ethtool_rx_flow_spec *)&cmd->fs;
1371 struct igc_nfc_rule *rule;
1372
1373 mutex_lock(&adapter->nfc_rule_lock);
1374
1375 rule = igc_get_nfc_rule(adapter, location: fsp->location);
1376 if (!rule) {
1377 mutex_unlock(lock: &adapter->nfc_rule_lock);
1378 return -EINVAL;
1379 }
1380
1381 igc_del_nfc_rule(adapter, rule);
1382
1383 mutex_unlock(lock: &adapter->nfc_rule_lock);
1384 return 0;
1385}
1386
1387static int igc_ethtool_set_rxnfc(struct net_device *dev,
1388 struct ethtool_rxnfc *cmd)
1389{
1390 struct igc_adapter *adapter = netdev_priv(dev);
1391
1392 switch (cmd->cmd) {
1393 case ETHTOOL_SRXFH:
1394 return igc_ethtool_set_rss_hash_opt(adapter, nfc: cmd);
1395 case ETHTOOL_SRXCLSRLINS:
1396 return igc_ethtool_add_nfc_rule(adapter, cmd);
1397 case ETHTOOL_SRXCLSRLDEL:
1398 return igc_ethtool_del_nfc_rule(adapter, cmd);
1399 default:
1400 return -EOPNOTSUPP;
1401 }
1402}
1403
1404void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1405{
1406 struct igc_hw *hw = &adapter->hw;
1407 u32 reg = IGC_RETA(0);
1408 u32 shift = 0;
1409 int i = 0;
1410
1411 while (i < IGC_RETA_SIZE) {
1412 u32 val = 0;
1413 int j;
1414
1415 for (j = 3; j >= 0; j--) {
1416 val <<= 8;
1417 val |= adapter->rss_indir_tbl[i + j];
1418 }
1419
1420 wr32(reg, val << shift);
1421 reg += 4;
1422 i += 4;
1423 }
1424}
1425
1426static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1427{
1428 return IGC_RETA_SIZE;
1429}
1430
1431static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1432 u8 *hfunc)
1433{
1434 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1435 int i;
1436
1437 if (hfunc)
1438 *hfunc = ETH_RSS_HASH_TOP;
1439 if (!indir)
1440 return 0;
1441 for (i = 0; i < IGC_RETA_SIZE; i++)
1442 indir[i] = adapter->rss_indir_tbl[i];
1443
1444 return 0;
1445}
1446
1447static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1448 const u8 *key, const u8 hfunc)
1449{
1450 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1451 u32 num_queues;
1452 int i;
1453
1454 /* We do not allow change in unsupported parameters */
1455 if (key ||
1456 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1457 return -EOPNOTSUPP;
1458 if (!indir)
1459 return 0;
1460
1461 num_queues = adapter->rss_queues;
1462
1463 /* Verify user input. */
1464 for (i = 0; i < IGC_RETA_SIZE; i++)
1465 if (indir[i] >= num_queues)
1466 return -EINVAL;
1467
1468 for (i = 0; i < IGC_RETA_SIZE; i++)
1469 adapter->rss_indir_tbl[i] = indir[i];
1470
1471 igc_write_rss_indir_tbl(adapter);
1472
1473 return 0;
1474}
1475
1476static void igc_ethtool_get_channels(struct net_device *netdev,
1477 struct ethtool_channels *ch)
1478{
1479 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1480
1481 /* Report maximum channels */
1482 ch->max_combined = igc_get_max_rss_queues(adapter);
1483
1484 /* Report info for other vector */
1485 if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1486 ch->max_other = NON_Q_VECTORS;
1487 ch->other_count = NON_Q_VECTORS;
1488 }
1489
1490 ch->combined_count = adapter->rss_queues;
1491}
1492
1493static int igc_ethtool_set_channels(struct net_device *netdev,
1494 struct ethtool_channels *ch)
1495{
1496 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1497 unsigned int count = ch->combined_count;
1498 unsigned int max_combined = 0;
1499
1500 /* Verify they are not requesting separate vectors */
1501 if (!count || ch->rx_count || ch->tx_count)
1502 return -EINVAL;
1503
1504 /* Verify other_count is valid and has not been changed */
1505 if (ch->other_count != NON_Q_VECTORS)
1506 return -EINVAL;
1507
1508 /* Verify the number of channels doesn't exceed hw limits */
1509 max_combined = igc_get_max_rss_queues(adapter);
1510 if (count > max_combined)
1511 return -EINVAL;
1512
1513 if (count != adapter->rss_queues) {
1514 adapter->rss_queues = count;
1515 igc_set_flag_queue_pairs(adapter, max_rss_queues: max_combined);
1516
1517 /* Hardware has to reinitialize queues and interrupts to
1518 * match the new configuration.
1519 */
1520 return igc_reinit_queues(adapter);
1521 }
1522
1523 return 0;
1524}
1525
1526static int igc_ethtool_get_ts_info(struct net_device *dev,
1527 struct ethtool_ts_info *info)
1528{
1529 struct igc_adapter *adapter = netdev_priv(dev);
1530
1531 if (adapter->ptp_clock)
1532 info->phc_index = ptp_clock_index(ptp: adapter->ptp_clock);
1533 else
1534 info->phc_index = -1;
1535
1536 switch (adapter->hw.mac.type) {
1537 case igc_i225:
1538 info->so_timestamping =
1539 SOF_TIMESTAMPING_TX_SOFTWARE |
1540 SOF_TIMESTAMPING_RX_SOFTWARE |
1541 SOF_TIMESTAMPING_SOFTWARE |
1542 SOF_TIMESTAMPING_TX_HARDWARE |
1543 SOF_TIMESTAMPING_RX_HARDWARE |
1544 SOF_TIMESTAMPING_RAW_HARDWARE;
1545
1546 info->tx_types =
1547 BIT(HWTSTAMP_TX_OFF) |
1548 BIT(HWTSTAMP_TX_ON);
1549
1550 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1551 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1552
1553 return 0;
1554 default:
1555 return -EOPNOTSUPP;
1556 }
1557}
1558
1559static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1560{
1561 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1562 u32 priv_flags = 0;
1563
1564 if (adapter->flags & IGC_FLAG_RX_LEGACY)
1565 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1566
1567 return priv_flags;
1568}
1569
1570static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1571{
1572 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1573 unsigned int flags = adapter->flags;
1574
1575 flags &= ~IGC_FLAG_RX_LEGACY;
1576 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1577 flags |= IGC_FLAG_RX_LEGACY;
1578
1579 if (flags != adapter->flags) {
1580 adapter->flags = flags;
1581
1582 /* reset interface to repopulate queues */
1583 if (netif_running(dev: netdev))
1584 igc_reinit_locked(adapter);
1585 }
1586
1587 return 0;
1588}
1589
1590static int igc_ethtool_get_eee(struct net_device *netdev,
1591 struct ethtool_eee *edata)
1592{
1593 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1594 struct igc_hw *hw = &adapter->hw;
1595 u32 eeer;
1596
1597 if (hw->dev_spec._base.eee_enable)
1598 edata->advertised =
1599 mmd_eee_adv_to_ethtool_adv_t(eee_adv: adapter->eee_advert);
1600
1601 *edata = adapter->eee;
1602 edata->supported = SUPPORTED_Autoneg;
1603
1604 eeer = rd32(IGC_EEER);
1605
1606 /* EEE status on negotiated link */
1607 if (eeer & IGC_EEER_EEE_NEG)
1608 edata->eee_active = true;
1609
1610 if (eeer & IGC_EEER_TX_LPI_EN)
1611 edata->tx_lpi_enabled = true;
1612
1613 edata->eee_enabled = hw->dev_spec._base.eee_enable;
1614
1615 edata->advertised = SUPPORTED_Autoneg;
1616 edata->lp_advertised = SUPPORTED_Autoneg;
1617
1618 /* Report correct negotiated EEE status for devices that
1619 * wrongly report EEE at half-duplex
1620 */
1621 if (adapter->link_duplex == HALF_DUPLEX) {
1622 edata->eee_enabled = false;
1623 edata->eee_active = false;
1624 edata->tx_lpi_enabled = false;
1625 edata->advertised &= ~edata->advertised;
1626 }
1627
1628 return 0;
1629}
1630
1631static int igc_ethtool_set_eee(struct net_device *netdev,
1632 struct ethtool_eee *edata)
1633{
1634 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1635 struct igc_hw *hw = &adapter->hw;
1636 struct ethtool_eee eee_curr;
1637 s32 ret_val;
1638
1639 memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1640
1641 ret_val = igc_ethtool_get_eee(netdev, edata: &eee_curr);
1642 if (ret_val) {
1643 netdev_err(dev: netdev,
1644 format: "Problem setting EEE advertisement options\n");
1645 return -EINVAL;
1646 }
1647
1648 if (eee_curr.eee_enabled) {
1649 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1650 netdev_err(dev: netdev,
1651 format: "Setting EEE tx-lpi is not supported\n");
1652 return -EINVAL;
1653 }
1654
1655 /* Tx LPI timer is not implemented currently */
1656 if (edata->tx_lpi_timer) {
1657 netdev_err(dev: netdev,
1658 format: "Setting EEE Tx LPI timer is not supported\n");
1659 return -EINVAL;
1660 }
1661 } else if (!edata->eee_enabled) {
1662 netdev_err(dev: netdev,
1663 format: "Setting EEE options are not supported with EEE disabled\n");
1664 return -EINVAL;
1665 }
1666
1667 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(adv: edata->advertised);
1668 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1669 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1670 adapter->flags |= IGC_FLAG_EEE;
1671
1672 /* reset link */
1673 if (netif_running(dev: netdev))
1674 igc_reinit_locked(adapter);
1675 else
1676 igc_reset(adapter);
1677 }
1678
1679 return 0;
1680}
1681
1682static int igc_ethtool_begin(struct net_device *netdev)
1683{
1684 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1685
1686 pm_runtime_get_sync(dev: &adapter->pdev->dev);
1687 return 0;
1688}
1689
1690static void igc_ethtool_complete(struct net_device *netdev)
1691{
1692 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1693
1694 pm_runtime_put(dev: &adapter->pdev->dev);
1695}
1696
1697static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1698 struct ethtool_link_ksettings *cmd)
1699{
1700 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1701 struct igc_hw *hw = &adapter->hw;
1702 u32 status;
1703 u32 speed;
1704
1705 ethtool_link_ksettings_zero_link_mode(cmd, supported);
1706 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1707
1708 /* supported link modes */
1709 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1710 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1711 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1712 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1713 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1714 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1715
1716 /* twisted pair */
1717 cmd->base.port = PORT_TP;
1718 cmd->base.phy_address = hw->phy.addr;
1719 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
1720 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
1721
1722 /* advertising link modes */
1723 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1724 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1725 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1726 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1727 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1728 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1729 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1730 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1731 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1732 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1733 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1734 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1735
1736 /* set autoneg settings */
1737 if (hw->mac.autoneg == 1) {
1738 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1739 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1740 Autoneg);
1741 }
1742
1743 /* Set pause flow control settings */
1744 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1745
1746 switch (hw->fc.requested_mode) {
1747 case igc_fc_full:
1748 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1749 break;
1750 case igc_fc_rx_pause:
1751 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1752 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1753 Asym_Pause);
1754 break;
1755 case igc_fc_tx_pause:
1756 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1757 Asym_Pause);
1758 break;
1759 default:
1760 break;
1761 }
1762
1763 status = pm_runtime_suspended(dev: &adapter->pdev->dev) ?
1764 0 : rd32(IGC_STATUS);
1765
1766 if (status & IGC_STATUS_LU) {
1767 if (status & IGC_STATUS_SPEED_1000) {
1768 /* For I225, STATUS will indicate 1G speed in both
1769 * 1 Gbps and 2.5 Gbps link modes.
1770 * An additional bit is used
1771 * to differentiate between 1 Gbps and 2.5 Gbps.
1772 */
1773 if (hw->mac.type == igc_i225 &&
1774 (status & IGC_STATUS_SPEED_2500)) {
1775 speed = SPEED_2500;
1776 } else {
1777 speed = SPEED_1000;
1778 }
1779 } else if (status & IGC_STATUS_SPEED_100) {
1780 speed = SPEED_100;
1781 } else {
1782 speed = SPEED_10;
1783 }
1784 if ((status & IGC_STATUS_FD) ||
1785 hw->phy.media_type != igc_media_type_copper)
1786 cmd->base.duplex = DUPLEX_FULL;
1787 else
1788 cmd->base.duplex = DUPLEX_HALF;
1789 } else {
1790 speed = SPEED_UNKNOWN;
1791 cmd->base.duplex = DUPLEX_UNKNOWN;
1792 }
1793 cmd->base.speed = speed;
1794 if (hw->mac.autoneg)
1795 cmd->base.autoneg = AUTONEG_ENABLE;
1796 else
1797 cmd->base.autoneg = AUTONEG_DISABLE;
1798
1799 /* MDI-X => 2; MDI =>1; Invalid =>0 */
1800 if (hw->phy.media_type == igc_media_type_copper)
1801 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1802 ETH_TP_MDI;
1803 else
1804 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1805
1806 if (hw->phy.mdix == AUTO_ALL_MODES)
1807 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1808 else
1809 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1810
1811 return 0;
1812}
1813
1814static int
1815igc_ethtool_set_link_ksettings(struct net_device *netdev,
1816 const struct ethtool_link_ksettings *cmd)
1817{
1818 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1819 struct net_device *dev = adapter->netdev;
1820 struct igc_hw *hw = &adapter->hw;
1821 u16 advertised = 0;
1822
1823 /* When adapter in resetting mode, autoneg/speed/duplex
1824 * cannot be changed
1825 */
1826 if (igc_check_reset_block(hw)) {
1827 netdev_err(dev, format: "Cannot change link characteristics when reset is active\n");
1828 return -EINVAL;
1829 }
1830
1831 /* MDI setting is only allowed when autoneg enabled because
1832 * some hardware doesn't allow MDI setting when speed or
1833 * duplex is forced.
1834 */
1835 if (cmd->base.eth_tp_mdix_ctrl) {
1836 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1837 cmd->base.autoneg != AUTONEG_ENABLE) {
1838 netdev_err(dev, format: "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1839 return -EINVAL;
1840 }
1841 }
1842
1843 while (test_and_set_bit(nr: __IGC_RESETTING, addr: &adapter->state))
1844 usleep_range(min: 1000, max: 2000);
1845
1846 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1847 2500baseT_Full))
1848 advertised |= ADVERTISE_2500_FULL;
1849
1850 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1851 1000baseT_Full))
1852 advertised |= ADVERTISE_1000_FULL;
1853
1854 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1855 100baseT_Full))
1856 advertised |= ADVERTISE_100_FULL;
1857
1858 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1859 100baseT_Half))
1860 advertised |= ADVERTISE_100_HALF;
1861
1862 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1863 10baseT_Full))
1864 advertised |= ADVERTISE_10_FULL;
1865
1866 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
1867 10baseT_Half))
1868 advertised |= ADVERTISE_10_HALF;
1869
1870 if (cmd->base.autoneg == AUTONEG_ENABLE) {
1871 hw->mac.autoneg = 1;
1872 hw->phy.autoneg_advertised = advertised;
1873 if (adapter->fc_autoneg)
1874 hw->fc.requested_mode = igc_fc_default;
1875 } else {
1876 netdev_info(dev, format: "Force mode currently not supported\n");
1877 }
1878
1879 /* MDI-X => 2; MDI => 1; Auto => 3 */
1880 if (cmd->base.eth_tp_mdix_ctrl) {
1881 /* fix up the value for auto (3 => 0) as zero is mapped
1882 * internally to auto
1883 */
1884 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1885 hw->phy.mdix = AUTO_ALL_MODES;
1886 else
1887 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1888 }
1889
1890 /* reset the link */
1891 if (netif_running(dev: adapter->netdev)) {
1892 igc_down(adapter);
1893 igc_up(adapter);
1894 } else {
1895 igc_reset(adapter);
1896 }
1897
1898 clear_bit(nr: __IGC_RESETTING, addr: &adapter->state);
1899
1900 return 0;
1901}
1902
1903static void igc_ethtool_diag_test(struct net_device *netdev,
1904 struct ethtool_test *eth_test, u64 *data)
1905{
1906 struct igc_adapter *adapter = netdev_priv(dev: netdev);
1907 bool if_running = netif_running(dev: netdev);
1908
1909 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1910 netdev_info(dev: adapter->netdev, format: "Offline testing starting");
1911 set_bit(nr: __IGC_TESTING, addr: &adapter->state);
1912
1913 /* Link test performed before hardware reset so autoneg doesn't
1914 * interfere with test result
1915 */
1916 if (!igc_link_test(adapter, data: &data[TEST_LINK]))
1917 eth_test->flags |= ETH_TEST_FL_FAILED;
1918
1919 if (if_running)
1920 igc_close(netdev);
1921 else
1922 igc_reset(adapter);
1923
1924 netdev_info(dev: adapter->netdev, format: "Register testing starting");
1925 if (!igc_reg_test(adapter, data: &data[TEST_REG]))
1926 eth_test->flags |= ETH_TEST_FL_FAILED;
1927
1928 igc_reset(adapter);
1929
1930 netdev_info(dev: adapter->netdev, format: "EEPROM testing starting");
1931 if (!igc_eeprom_test(adapter, data: &data[TEST_EEP]))
1932 eth_test->flags |= ETH_TEST_FL_FAILED;
1933
1934 igc_reset(adapter);
1935
1936 /* loopback and interrupt tests
1937 * will be implemented in the future
1938 */
1939 data[TEST_LOOP] = 0;
1940 data[TEST_IRQ] = 0;
1941
1942 clear_bit(nr: __IGC_TESTING, addr: &adapter->state);
1943 if (if_running)
1944 igc_open(netdev);
1945 } else {
1946 netdev_info(dev: adapter->netdev, format: "Online testing starting");
1947
1948 /* register, eeprom, intr and loopback tests not run online */
1949 data[TEST_REG] = 0;
1950 data[TEST_EEP] = 0;
1951 data[TEST_IRQ] = 0;
1952 data[TEST_LOOP] = 0;
1953
1954 if (!igc_link_test(adapter, data: &data[TEST_LINK]))
1955 eth_test->flags |= ETH_TEST_FL_FAILED;
1956 }
1957
1958 msleep_interruptible(msecs: 4 * 1000);
1959}
1960
1961static const struct ethtool_ops igc_ethtool_ops = {
1962 .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1963 .get_drvinfo = igc_ethtool_get_drvinfo,
1964 .get_regs_len = igc_ethtool_get_regs_len,
1965 .get_regs = igc_ethtool_get_regs,
1966 .get_wol = igc_ethtool_get_wol,
1967 .set_wol = igc_ethtool_set_wol,
1968 .get_msglevel = igc_ethtool_get_msglevel,
1969 .set_msglevel = igc_ethtool_set_msglevel,
1970 .nway_reset = igc_ethtool_nway_reset,
1971 .get_link = igc_ethtool_get_link,
1972 .get_eeprom_len = igc_ethtool_get_eeprom_len,
1973 .get_eeprom = igc_ethtool_get_eeprom,
1974 .set_eeprom = igc_ethtool_set_eeprom,
1975 .get_ringparam = igc_ethtool_get_ringparam,
1976 .set_ringparam = igc_ethtool_set_ringparam,
1977 .get_pauseparam = igc_ethtool_get_pauseparam,
1978 .set_pauseparam = igc_ethtool_set_pauseparam,
1979 .get_strings = igc_ethtool_get_strings,
1980 .get_sset_count = igc_ethtool_get_sset_count,
1981 .get_ethtool_stats = igc_ethtool_get_stats,
1982 .get_coalesce = igc_ethtool_get_coalesce,
1983 .set_coalesce = igc_ethtool_set_coalesce,
1984 .get_rxnfc = igc_ethtool_get_rxnfc,
1985 .set_rxnfc = igc_ethtool_set_rxnfc,
1986 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size,
1987 .get_rxfh = igc_ethtool_get_rxfh,
1988 .set_rxfh = igc_ethtool_set_rxfh,
1989 .get_ts_info = igc_ethtool_get_ts_info,
1990 .get_channels = igc_ethtool_get_channels,
1991 .set_channels = igc_ethtool_set_channels,
1992 .get_priv_flags = igc_ethtool_get_priv_flags,
1993 .set_priv_flags = igc_ethtool_set_priv_flags,
1994 .get_eee = igc_ethtool_get_eee,
1995 .set_eee = igc_ethtool_set_eee,
1996 .begin = igc_ethtool_begin,
1997 .complete = igc_ethtool_complete,
1998 .get_link_ksettings = igc_ethtool_get_link_ksettings,
1999 .set_link_ksettings = igc_ethtool_set_link_ksettings,
2000 .self_test = igc_ethtool_diag_test,
2001};
2002
2003void igc_ethtool_set_ops(struct net_device *netdev)
2004{
2005 netdev->ethtool_ops = &igc_ethtool_ops;
2006}
2007

source code of linux/drivers/net/ethernet/intel/igc/igc_ethtool.c