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 */
13 struct 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
25 static 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 };
69
70 #define IGC_NETDEV_STAT(_net_stat) { \
71 .stat_string = __stringify(_net_stat), \
72 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
73 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
74 }
75
76 static const struct igc_stats igc_gstrings_net_stats[] = {
77 IGC_NETDEV_STAT(rx_errors),
78 IGC_NETDEV_STAT(tx_errors),
79 IGC_NETDEV_STAT(tx_dropped),
80 IGC_NETDEV_STAT(rx_length_errors),
81 IGC_NETDEV_STAT(rx_over_errors),
82 IGC_NETDEV_STAT(rx_frame_errors),
83 IGC_NETDEV_STAT(rx_fifo_errors),
84 IGC_NETDEV_STAT(tx_fifo_errors),
85 IGC_NETDEV_STAT(tx_heartbeat_errors)
86 };
87
88 enum igc_diagnostics_results {
89 TEST_REG = 0,
90 TEST_EEP,
91 TEST_IRQ,
92 TEST_LOOP,
93 TEST_LINK
94 };
95
96 static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
97 [TEST_REG] = "Register test (offline)",
98 [TEST_EEP] = "Eeprom test (offline)",
99 [TEST_IRQ] = "Interrupt test (offline)",
100 [TEST_LOOP] = "Loopback test (offline)",
101 [TEST_LINK] = "Link test (on/offline)"
102 };
103
104 #define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
105
106 #define IGC_GLOBAL_STATS_LEN \
107 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
108 #define IGC_NETDEV_STATS_LEN \
109 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
110 #define IGC_RX_QUEUE_STATS_LEN \
111 (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
112 #define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
113 #define IGC_QUEUE_STATS_LEN \
114 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
115 IGC_RX_QUEUE_STATS_LEN) + \
116 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
117 IGC_TX_QUEUE_STATS_LEN))
118 #define IGC_STATS_LEN \
119 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
120
121 static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
122 #define IGC_PRIV_FLAGS_LEGACY_RX BIT(0)
123 "legacy-rx",
124 };
125
126 #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
127
igc_ethtool_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)128 static void igc_ethtool_get_drvinfo(struct net_device *netdev,
129 struct ethtool_drvinfo *drvinfo)
130 {
131 struct igc_adapter *adapter = netdev_priv(netdev);
132
133 strlcpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
134
135 /* add fw_version here */
136 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
137 sizeof(drvinfo->bus_info));
138
139 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
140 }
141
igc_ethtool_get_regs_len(struct net_device * netdev)142 static int igc_ethtool_get_regs_len(struct net_device *netdev)
143 {
144 return IGC_REGS_LEN * sizeof(u32);
145 }
146
igc_ethtool_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)147 static void igc_ethtool_get_regs(struct net_device *netdev,
148 struct ethtool_regs *regs, void *p)
149 {
150 struct igc_adapter *adapter = netdev_priv(netdev);
151 struct igc_hw *hw = &adapter->hw;
152 u32 *regs_buff = p;
153 u8 i;
154
155 memset(p, 0, IGC_REGS_LEN * sizeof(u32));
156
157 regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
158
159 /* General Registers */
160 regs_buff[0] = rd32(IGC_CTRL);
161 regs_buff[1] = rd32(IGC_STATUS);
162 regs_buff[2] = rd32(IGC_CTRL_EXT);
163 regs_buff[3] = rd32(IGC_MDIC);
164 regs_buff[4] = rd32(IGC_CONNSW);
165
166 /* NVM Register */
167 regs_buff[5] = rd32(IGC_EECD);
168
169 /* Interrupt */
170 /* Reading EICS for EICR because they read the
171 * same but EICS does not clear on read
172 */
173 regs_buff[6] = rd32(IGC_EICS);
174 regs_buff[7] = rd32(IGC_EICS);
175 regs_buff[8] = rd32(IGC_EIMS);
176 regs_buff[9] = rd32(IGC_EIMC);
177 regs_buff[10] = rd32(IGC_EIAC);
178 regs_buff[11] = rd32(IGC_EIAM);
179 /* Reading ICS for ICR because they read the
180 * same but ICS does not clear on read
181 */
182 regs_buff[12] = rd32(IGC_ICS);
183 regs_buff[13] = rd32(IGC_ICS);
184 regs_buff[14] = rd32(IGC_IMS);
185 regs_buff[15] = rd32(IGC_IMC);
186 regs_buff[16] = rd32(IGC_IAC);
187 regs_buff[17] = rd32(IGC_IAM);
188
189 /* Flow Control */
190 regs_buff[18] = rd32(IGC_FCAL);
191 regs_buff[19] = rd32(IGC_FCAH);
192 regs_buff[20] = rd32(IGC_FCTTV);
193 regs_buff[21] = rd32(IGC_FCRTL);
194 regs_buff[22] = rd32(IGC_FCRTH);
195 regs_buff[23] = rd32(IGC_FCRTV);
196
197 /* Receive */
198 regs_buff[24] = rd32(IGC_RCTL);
199 regs_buff[25] = rd32(IGC_RXCSUM);
200 regs_buff[26] = rd32(IGC_RLPML);
201 regs_buff[27] = rd32(IGC_RFCTL);
202
203 /* Transmit */
204 regs_buff[28] = rd32(IGC_TCTL);
205 regs_buff[29] = rd32(IGC_TIPG);
206
207 /* Wake Up */
208
209 /* MAC */
210
211 /* Statistics */
212 regs_buff[30] = adapter->stats.crcerrs;
213 regs_buff[31] = adapter->stats.algnerrc;
214 regs_buff[32] = adapter->stats.symerrs;
215 regs_buff[33] = adapter->stats.rxerrc;
216 regs_buff[34] = adapter->stats.mpc;
217 regs_buff[35] = adapter->stats.scc;
218 regs_buff[36] = adapter->stats.ecol;
219 regs_buff[37] = adapter->stats.mcc;
220 regs_buff[38] = adapter->stats.latecol;
221 regs_buff[39] = adapter->stats.colc;
222 regs_buff[40] = adapter->stats.dc;
223 regs_buff[41] = adapter->stats.tncrs;
224 regs_buff[42] = adapter->stats.sec;
225 regs_buff[43] = adapter->stats.htdpmc;
226 regs_buff[44] = adapter->stats.rlec;
227 regs_buff[45] = adapter->stats.xonrxc;
228 regs_buff[46] = adapter->stats.xontxc;
229 regs_buff[47] = adapter->stats.xoffrxc;
230 regs_buff[48] = adapter->stats.xofftxc;
231 regs_buff[49] = adapter->stats.fcruc;
232 regs_buff[50] = adapter->stats.prc64;
233 regs_buff[51] = adapter->stats.prc127;
234 regs_buff[52] = adapter->stats.prc255;
235 regs_buff[53] = adapter->stats.prc511;
236 regs_buff[54] = adapter->stats.prc1023;
237 regs_buff[55] = adapter->stats.prc1522;
238 regs_buff[56] = adapter->stats.gprc;
239 regs_buff[57] = adapter->stats.bprc;
240 regs_buff[58] = adapter->stats.mprc;
241 regs_buff[59] = adapter->stats.gptc;
242 regs_buff[60] = adapter->stats.gorc;
243 regs_buff[61] = adapter->stats.gotc;
244 regs_buff[62] = adapter->stats.rnbc;
245 regs_buff[63] = adapter->stats.ruc;
246 regs_buff[64] = adapter->stats.rfc;
247 regs_buff[65] = adapter->stats.roc;
248 regs_buff[66] = adapter->stats.rjc;
249 regs_buff[67] = adapter->stats.mgprc;
250 regs_buff[68] = adapter->stats.mgpdc;
251 regs_buff[69] = adapter->stats.mgptc;
252 regs_buff[70] = adapter->stats.tor;
253 regs_buff[71] = adapter->stats.tot;
254 regs_buff[72] = adapter->stats.tpr;
255 regs_buff[73] = adapter->stats.tpt;
256 regs_buff[74] = adapter->stats.ptc64;
257 regs_buff[75] = adapter->stats.ptc127;
258 regs_buff[76] = adapter->stats.ptc255;
259 regs_buff[77] = adapter->stats.ptc511;
260 regs_buff[78] = adapter->stats.ptc1023;
261 regs_buff[79] = adapter->stats.ptc1522;
262 regs_buff[80] = adapter->stats.mptc;
263 regs_buff[81] = adapter->stats.bptc;
264 regs_buff[82] = adapter->stats.tsctc;
265 regs_buff[83] = adapter->stats.iac;
266 regs_buff[84] = adapter->stats.rpthc;
267 regs_buff[85] = adapter->stats.hgptc;
268 regs_buff[86] = adapter->stats.hgorc;
269 regs_buff[87] = adapter->stats.hgotc;
270 regs_buff[88] = adapter->stats.lenerrs;
271 regs_buff[89] = adapter->stats.scvpc;
272 regs_buff[90] = adapter->stats.hrmpc;
273
274 for (i = 0; i < 4; i++)
275 regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
276 for (i = 0; i < 4; i++)
277 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
278 for (i = 0; i < 4; i++)
279 regs_buff[99 + i] = rd32(IGC_RDBAL(i));
280 for (i = 0; i < 4; i++)
281 regs_buff[103 + i] = rd32(IGC_RDBAH(i));
282 for (i = 0; i < 4; i++)
283 regs_buff[107 + i] = rd32(IGC_RDLEN(i));
284 for (i = 0; i < 4; i++)
285 regs_buff[111 + i] = rd32(IGC_RDH(i));
286 for (i = 0; i < 4; i++)
287 regs_buff[115 + i] = rd32(IGC_RDT(i));
288 for (i = 0; i < 4; i++)
289 regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
290
291 for (i = 0; i < 10; i++)
292 regs_buff[123 + i] = rd32(IGC_EITR(i));
293 for (i = 0; i < 16; i++)
294 regs_buff[139 + i] = rd32(IGC_RAL(i));
295 for (i = 0; i < 16; i++)
296 regs_buff[145 + i] = rd32(IGC_RAH(i));
297
298 for (i = 0; i < 4; i++)
299 regs_buff[149 + i] = rd32(IGC_TDBAL(i));
300 for (i = 0; i < 4; i++)
301 regs_buff[152 + i] = rd32(IGC_TDBAH(i));
302 for (i = 0; i < 4; i++)
303 regs_buff[156 + i] = rd32(IGC_TDLEN(i));
304 for (i = 0; i < 4; i++)
305 regs_buff[160 + i] = rd32(IGC_TDH(i));
306 for (i = 0; i < 4; i++)
307 regs_buff[164 + i] = rd32(IGC_TDT(i));
308 for (i = 0; i < 4; i++)
309 regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
310
311 /* XXX: Due to a bug few lines above, RAL and RAH registers are
312 * overwritten. To preserve the ABI, we write these registers again in
313 * regs_buff.
314 */
315 for (i = 0; i < 16; i++)
316 regs_buff[172 + i] = rd32(IGC_RAL(i));
317 for (i = 0; i < 16; i++)
318 regs_buff[188 + i] = rd32(IGC_RAH(i));
319
320 regs_buff[204] = rd32(IGC_VLANPQF);
321
322 for (i = 0; i < 8; i++)
323 regs_buff[205 + i] = rd32(IGC_ETQF(i));
324
325 regs_buff[213] = adapter->stats.tlpic;
326 regs_buff[214] = adapter->stats.rlpic;
327 }
328
igc_ethtool_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)329 static void igc_ethtool_get_wol(struct net_device *netdev,
330 struct ethtool_wolinfo *wol)
331 {
332 struct igc_adapter *adapter = netdev_priv(netdev);
333
334 wol->wolopts = 0;
335
336 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
337 return;
338
339 wol->supported = WAKE_UCAST | WAKE_MCAST |
340 WAKE_BCAST | WAKE_MAGIC |
341 WAKE_PHY;
342
343 /* apply any specific unsupported masks here */
344 switch (adapter->hw.device_id) {
345 default:
346 break;
347 }
348
349 if (adapter->wol & IGC_WUFC_EX)
350 wol->wolopts |= WAKE_UCAST;
351 if (adapter->wol & IGC_WUFC_MC)
352 wol->wolopts |= WAKE_MCAST;
353 if (adapter->wol & IGC_WUFC_BC)
354 wol->wolopts |= WAKE_BCAST;
355 if (adapter->wol & IGC_WUFC_MAG)
356 wol->wolopts |= WAKE_MAGIC;
357 if (adapter->wol & IGC_WUFC_LNKC)
358 wol->wolopts |= WAKE_PHY;
359 }
360
igc_ethtool_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)361 static int igc_ethtool_set_wol(struct net_device *netdev,
362 struct ethtool_wolinfo *wol)
363 {
364 struct igc_adapter *adapter = netdev_priv(netdev);
365
366 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
367 return -EOPNOTSUPP;
368
369 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
370 return wol->wolopts ? -EOPNOTSUPP : 0;
371
372 /* these settings will always override what we currently have */
373 adapter->wol = 0;
374
375 if (wol->wolopts & WAKE_UCAST)
376 adapter->wol |= IGC_WUFC_EX;
377 if (wol->wolopts & WAKE_MCAST)
378 adapter->wol |= IGC_WUFC_MC;
379 if (wol->wolopts & WAKE_BCAST)
380 adapter->wol |= IGC_WUFC_BC;
381 if (wol->wolopts & WAKE_MAGIC)
382 adapter->wol |= IGC_WUFC_MAG;
383 if (wol->wolopts & WAKE_PHY)
384 adapter->wol |= IGC_WUFC_LNKC;
385 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
386
387 return 0;
388 }
389
igc_ethtool_get_msglevel(struct net_device * netdev)390 static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
391 {
392 struct igc_adapter *adapter = netdev_priv(netdev);
393
394 return adapter->msg_enable;
395 }
396
igc_ethtool_set_msglevel(struct net_device * netdev,u32 data)397 static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
398 {
399 struct igc_adapter *adapter = netdev_priv(netdev);
400
401 adapter->msg_enable = data;
402 }
403
igc_ethtool_nway_reset(struct net_device * netdev)404 static int igc_ethtool_nway_reset(struct net_device *netdev)
405 {
406 struct igc_adapter *adapter = netdev_priv(netdev);
407
408 if (netif_running(netdev))
409 igc_reinit_locked(adapter);
410 return 0;
411 }
412
igc_ethtool_get_link(struct net_device * netdev)413 static u32 igc_ethtool_get_link(struct net_device *netdev)
414 {
415 struct igc_adapter *adapter = netdev_priv(netdev);
416 struct igc_mac_info *mac = &adapter->hw.mac;
417
418 /* If the link is not reported up to netdev, interrupts are disabled,
419 * and so the physical link state may have changed since we last
420 * looked. Set get_link_status to make sure that the true link
421 * state is interrogated, rather than pulling a cached and possibly
422 * stale link state from the driver.
423 */
424 if (!netif_carrier_ok(netdev))
425 mac->get_link_status = 1;
426
427 return igc_has_link(adapter);
428 }
429
igc_ethtool_get_eeprom_len(struct net_device * netdev)430 static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
431 {
432 struct igc_adapter *adapter = netdev_priv(netdev);
433
434 return adapter->hw.nvm.word_size * 2;
435 }
436
igc_ethtool_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)437 static int igc_ethtool_get_eeprom(struct net_device *netdev,
438 struct ethtool_eeprom *eeprom, u8 *bytes)
439 {
440 struct igc_adapter *adapter = netdev_priv(netdev);
441 struct igc_hw *hw = &adapter->hw;
442 int first_word, last_word;
443 u16 *eeprom_buff;
444 int ret_val = 0;
445 u16 i;
446
447 if (eeprom->len == 0)
448 return -EINVAL;
449
450 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
451
452 first_word = eeprom->offset >> 1;
453 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
454
455 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
456 GFP_KERNEL);
457 if (!eeprom_buff)
458 return -ENOMEM;
459
460 if (hw->nvm.type == igc_nvm_eeprom_spi) {
461 ret_val = hw->nvm.ops.read(hw, first_word,
462 last_word - first_word + 1,
463 eeprom_buff);
464 } else {
465 for (i = 0; i < last_word - first_word + 1; i++) {
466 ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
467 &eeprom_buff[i]);
468 if (ret_val)
469 break;
470 }
471 }
472
473 /* Device's eeprom is always little-endian, word addressable */
474 for (i = 0; i < last_word - first_word + 1; i++)
475 le16_to_cpus(&eeprom_buff[i]);
476
477 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
478 eeprom->len);
479 kfree(eeprom_buff);
480
481 return ret_val;
482 }
483
igc_ethtool_set_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)484 static int igc_ethtool_set_eeprom(struct net_device *netdev,
485 struct ethtool_eeprom *eeprom, u8 *bytes)
486 {
487 struct igc_adapter *adapter = netdev_priv(netdev);
488 struct igc_hw *hw = &adapter->hw;
489 int max_len, first_word, last_word, ret_val = 0;
490 u16 *eeprom_buff;
491 void *ptr;
492 u16 i;
493
494 if (eeprom->len == 0)
495 return -EOPNOTSUPP;
496
497 if (hw->mac.type >= igc_i225 &&
498 !igc_get_flash_presence_i225(hw)) {
499 return -EOPNOTSUPP;
500 }
501
502 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
503 return -EFAULT;
504
505 max_len = hw->nvm.word_size * 2;
506
507 first_word = eeprom->offset >> 1;
508 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
509 eeprom_buff = kmalloc(max_len, GFP_KERNEL);
510 if (!eeprom_buff)
511 return -ENOMEM;
512
513 ptr = (void *)eeprom_buff;
514
515 if (eeprom->offset & 1) {
516 /* need read/modify/write of first changed EEPROM word
517 * only the second byte of the word is being modified
518 */
519 ret_val = hw->nvm.ops.read(hw, first_word, 1,
520 &eeprom_buff[0]);
521 ptr++;
522 }
523 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
524 /* need read/modify/write of last changed EEPROM word
525 * only the first byte of the word is being modified
526 */
527 ret_val = hw->nvm.ops.read(hw, last_word, 1,
528 &eeprom_buff[last_word - first_word]);
529 }
530
531 /* Device's eeprom is always little-endian, word addressable */
532 for (i = 0; i < last_word - first_word + 1; i++)
533 le16_to_cpus(&eeprom_buff[i]);
534
535 memcpy(ptr, bytes, eeprom->len);
536
537 for (i = 0; i < last_word - first_word + 1; i++)
538 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
539
540 ret_val = hw->nvm.ops.write(hw, first_word,
541 last_word - first_word + 1, eeprom_buff);
542
543 /* Update the checksum if nvm write succeeded */
544 if (ret_val == 0)
545 hw->nvm.ops.update(hw);
546
547 /* check if need: igc_set_fw_version(adapter); */
548 kfree(eeprom_buff);
549 return ret_val;
550 }
551
igc_ethtool_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring)552 static void igc_ethtool_get_ringparam(struct net_device *netdev,
553 struct ethtool_ringparam *ring)
554 {
555 struct igc_adapter *adapter = netdev_priv(netdev);
556
557 ring->rx_max_pending = IGC_MAX_RXD;
558 ring->tx_max_pending = IGC_MAX_TXD;
559 ring->rx_pending = adapter->rx_ring_count;
560 ring->tx_pending = adapter->tx_ring_count;
561 }
562
igc_ethtool_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring)563 static int igc_ethtool_set_ringparam(struct net_device *netdev,
564 struct ethtool_ringparam *ring)
565 {
566 struct igc_adapter *adapter = netdev_priv(netdev);
567 struct igc_ring *temp_ring;
568 u16 new_rx_count, new_tx_count;
569 int i, err = 0;
570
571 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
572 return -EINVAL;
573
574 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
575 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
576 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
577
578 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
579 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
580 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
581
582 if (new_tx_count == adapter->tx_ring_count &&
583 new_rx_count == adapter->rx_ring_count) {
584 /* nothing to do */
585 return 0;
586 }
587
588 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
589 usleep_range(1000, 2000);
590
591 if (!netif_running(adapter->netdev)) {
592 for (i = 0; i < adapter->num_tx_queues; i++)
593 adapter->tx_ring[i]->count = new_tx_count;
594 for (i = 0; i < adapter->num_rx_queues; i++)
595 adapter->rx_ring[i]->count = new_rx_count;
596 adapter->tx_ring_count = new_tx_count;
597 adapter->rx_ring_count = new_rx_count;
598 goto clear_reset;
599 }
600
601 if (adapter->num_tx_queues > adapter->num_rx_queues)
602 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
603 adapter->num_tx_queues));
604 else
605 temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
606 adapter->num_rx_queues));
607
608 if (!temp_ring) {
609 err = -ENOMEM;
610 goto clear_reset;
611 }
612
613 igc_down(adapter);
614
615 /* We can't just free everything and then setup again,
616 * because the ISRs in MSI-X mode get passed pointers
617 * to the Tx and Rx ring structs.
618 */
619 if (new_tx_count != adapter->tx_ring_count) {
620 for (i = 0; i < adapter->num_tx_queues; i++) {
621 memcpy(&temp_ring[i], adapter->tx_ring[i],
622 sizeof(struct igc_ring));
623
624 temp_ring[i].count = new_tx_count;
625 err = igc_setup_tx_resources(&temp_ring[i]);
626 if (err) {
627 while (i) {
628 i--;
629 igc_free_tx_resources(&temp_ring[i]);
630 }
631 goto err_setup;
632 }
633 }
634
635 for (i = 0; i < adapter->num_tx_queues; i++) {
636 igc_free_tx_resources(adapter->tx_ring[i]);
637
638 memcpy(adapter->tx_ring[i], &temp_ring[i],
639 sizeof(struct igc_ring));
640 }
641
642 adapter->tx_ring_count = new_tx_count;
643 }
644
645 if (new_rx_count != adapter->rx_ring_count) {
646 for (i = 0; i < adapter->num_rx_queues; i++) {
647 memcpy(&temp_ring[i], adapter->rx_ring[i],
648 sizeof(struct igc_ring));
649
650 temp_ring[i].count = new_rx_count;
651 err = igc_setup_rx_resources(&temp_ring[i]);
652 if (err) {
653 while (i) {
654 i--;
655 igc_free_rx_resources(&temp_ring[i]);
656 }
657 goto err_setup;
658 }
659 }
660
661 for (i = 0; i < adapter->num_rx_queues; i++) {
662 igc_free_rx_resources(adapter->rx_ring[i]);
663
664 memcpy(adapter->rx_ring[i], &temp_ring[i],
665 sizeof(struct igc_ring));
666 }
667
668 adapter->rx_ring_count = new_rx_count;
669 }
670 err_setup:
671 igc_up(adapter);
672 vfree(temp_ring);
673 clear_reset:
674 clear_bit(__IGC_RESETTING, &adapter->state);
675 return err;
676 }
677
igc_ethtool_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)678 static void igc_ethtool_get_pauseparam(struct net_device *netdev,
679 struct ethtool_pauseparam *pause)
680 {
681 struct igc_adapter *adapter = netdev_priv(netdev);
682 struct igc_hw *hw = &adapter->hw;
683
684 pause->autoneg =
685 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
686
687 if (hw->fc.current_mode == igc_fc_rx_pause) {
688 pause->rx_pause = 1;
689 } else if (hw->fc.current_mode == igc_fc_tx_pause) {
690 pause->tx_pause = 1;
691 } else if (hw->fc.current_mode == igc_fc_full) {
692 pause->rx_pause = 1;
693 pause->tx_pause = 1;
694 }
695 }
696
igc_ethtool_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)697 static int igc_ethtool_set_pauseparam(struct net_device *netdev,
698 struct ethtool_pauseparam *pause)
699 {
700 struct igc_adapter *adapter = netdev_priv(netdev);
701 struct igc_hw *hw = &adapter->hw;
702 int retval = 0;
703
704 adapter->fc_autoneg = pause->autoneg;
705
706 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
707 usleep_range(1000, 2000);
708
709 if (adapter->fc_autoneg == AUTONEG_ENABLE) {
710 hw->fc.requested_mode = igc_fc_default;
711 if (netif_running(adapter->netdev)) {
712 igc_down(adapter);
713 igc_up(adapter);
714 } else {
715 igc_reset(adapter);
716 }
717 } else {
718 if (pause->rx_pause && pause->tx_pause)
719 hw->fc.requested_mode = igc_fc_full;
720 else if (pause->rx_pause && !pause->tx_pause)
721 hw->fc.requested_mode = igc_fc_rx_pause;
722 else if (!pause->rx_pause && pause->tx_pause)
723 hw->fc.requested_mode = igc_fc_tx_pause;
724 else if (!pause->rx_pause && !pause->tx_pause)
725 hw->fc.requested_mode = igc_fc_none;
726
727 hw->fc.current_mode = hw->fc.requested_mode;
728
729 retval = ((hw->phy.media_type == igc_media_type_copper) ?
730 igc_force_mac_fc(hw) : igc_setup_link(hw));
731 }
732
733 clear_bit(__IGC_RESETTING, &adapter->state);
734 return retval;
735 }
736
igc_ethtool_get_strings(struct net_device * netdev,u32 stringset,u8 * data)737 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
738 u8 *data)
739 {
740 struct igc_adapter *adapter = netdev_priv(netdev);
741 u8 *p = data;
742 int i;
743
744 switch (stringset) {
745 case ETH_SS_TEST:
746 memcpy(data, *igc_gstrings_test,
747 IGC_TEST_LEN * ETH_GSTRING_LEN);
748 break;
749 case ETH_SS_STATS:
750 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
751 memcpy(p, igc_gstrings_stats[i].stat_string,
752 ETH_GSTRING_LEN);
753 p += ETH_GSTRING_LEN;
754 }
755 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
756 memcpy(p, igc_gstrings_net_stats[i].stat_string,
757 ETH_GSTRING_LEN);
758 p += ETH_GSTRING_LEN;
759 }
760 for (i = 0; i < adapter->num_tx_queues; i++) {
761 sprintf(p, "tx_queue_%u_packets", i);
762 p += ETH_GSTRING_LEN;
763 sprintf(p, "tx_queue_%u_bytes", i);
764 p += ETH_GSTRING_LEN;
765 sprintf(p, "tx_queue_%u_restart", i);
766 p += ETH_GSTRING_LEN;
767 }
768 for (i = 0; i < adapter->num_rx_queues; i++) {
769 sprintf(p, "rx_queue_%u_packets", i);
770 p += ETH_GSTRING_LEN;
771 sprintf(p, "rx_queue_%u_bytes", i);
772 p += ETH_GSTRING_LEN;
773 sprintf(p, "rx_queue_%u_drops", i);
774 p += ETH_GSTRING_LEN;
775 sprintf(p, "rx_queue_%u_csum_err", i);
776 p += ETH_GSTRING_LEN;
777 sprintf(p, "rx_queue_%u_alloc_failed", i);
778 p += ETH_GSTRING_LEN;
779 }
780 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
781 break;
782 case ETH_SS_PRIV_FLAGS:
783 memcpy(data, igc_priv_flags_strings,
784 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
785 break;
786 }
787 }
788
igc_ethtool_get_sset_count(struct net_device * netdev,int sset)789 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
790 {
791 switch (sset) {
792 case ETH_SS_STATS:
793 return IGC_STATS_LEN;
794 case ETH_SS_TEST:
795 return IGC_TEST_LEN;
796 case ETH_SS_PRIV_FLAGS:
797 return IGC_PRIV_FLAGS_STR_LEN;
798 default:
799 return -ENOTSUPP;
800 }
801 }
802
igc_ethtool_get_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)803 static void igc_ethtool_get_stats(struct net_device *netdev,
804 struct ethtool_stats *stats, u64 *data)
805 {
806 struct igc_adapter *adapter = netdev_priv(netdev);
807 struct rtnl_link_stats64 *net_stats = &adapter->stats64;
808 unsigned int start;
809 struct igc_ring *ring;
810 int i, j;
811 char *p;
812
813 spin_lock(&adapter->stats64_lock);
814 igc_update_stats(adapter);
815
816 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
817 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
818 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
819 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
820 }
821 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
822 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
823 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
824 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
825 }
826 for (j = 0; j < adapter->num_tx_queues; j++) {
827 u64 restart2;
828
829 ring = adapter->tx_ring[j];
830 do {
831 start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
832 data[i] = ring->tx_stats.packets;
833 data[i + 1] = ring->tx_stats.bytes;
834 data[i + 2] = ring->tx_stats.restart_queue;
835 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
836 do {
837 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
838 restart2 = ring->tx_stats.restart_queue2;
839 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
840 data[i + 2] += restart2;
841
842 i += IGC_TX_QUEUE_STATS_LEN;
843 }
844 for (j = 0; j < adapter->num_rx_queues; j++) {
845 ring = adapter->rx_ring[j];
846 do {
847 start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
848 data[i] = ring->rx_stats.packets;
849 data[i + 1] = ring->rx_stats.bytes;
850 data[i + 2] = ring->rx_stats.drops;
851 data[i + 3] = ring->rx_stats.csum_err;
852 data[i + 4] = ring->rx_stats.alloc_failed;
853 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
854 i += IGC_RX_QUEUE_STATS_LEN;
855 }
856 spin_unlock(&adapter->stats64_lock);
857 }
858
igc_ethtool_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec)859 static int igc_ethtool_get_coalesce(struct net_device *netdev,
860 struct ethtool_coalesce *ec)
861 {
862 struct igc_adapter *adapter = netdev_priv(netdev);
863
864 if (adapter->rx_itr_setting <= 3)
865 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
866 else
867 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
868
869 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
870 if (adapter->tx_itr_setting <= 3)
871 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
872 else
873 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
874 }
875
876 return 0;
877 }
878
igc_ethtool_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec)879 static int igc_ethtool_set_coalesce(struct net_device *netdev,
880 struct ethtool_coalesce *ec)
881 {
882 struct igc_adapter *adapter = netdev_priv(netdev);
883 int i;
884
885 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
886 (ec->rx_coalesce_usecs > 3 &&
887 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
888 ec->rx_coalesce_usecs == 2)
889 return -EINVAL;
890
891 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
892 (ec->tx_coalesce_usecs > 3 &&
893 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
894 ec->tx_coalesce_usecs == 2)
895 return -EINVAL;
896
897 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
898 return -EINVAL;
899
900 /* If ITR is disabled, disable DMAC */
901 if (ec->rx_coalesce_usecs == 0) {
902 if (adapter->flags & IGC_FLAG_DMAC)
903 adapter->flags &= ~IGC_FLAG_DMAC;
904 }
905
906 /* convert to rate of irq's per second */
907 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
908 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
909 else
910 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
911
912 /* convert to rate of irq's per second */
913 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
914 adapter->tx_itr_setting = adapter->rx_itr_setting;
915 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
916 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
917 else
918 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
919
920 for (i = 0; i < adapter->num_q_vectors; i++) {
921 struct igc_q_vector *q_vector = adapter->q_vector[i];
922
923 q_vector->tx.work_limit = adapter->tx_work_limit;
924 if (q_vector->rx.ring)
925 q_vector->itr_val = adapter->rx_itr_setting;
926 else
927 q_vector->itr_val = adapter->tx_itr_setting;
928 if (q_vector->itr_val && q_vector->itr_val <= 3)
929 q_vector->itr_val = IGC_START_ITR;
930 q_vector->set_itr = 1;
931 }
932
933 return 0;
934 }
935
936 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
igc_ethtool_get_nfc_rule(struct igc_adapter * adapter,struct ethtool_rxnfc * cmd)937 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
938 struct ethtool_rxnfc *cmd)
939 {
940 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
941 struct igc_nfc_rule *rule = NULL;
942
943 cmd->data = IGC_MAX_RXNFC_RULES;
944
945 mutex_lock(&adapter->nfc_rule_lock);
946
947 rule = igc_get_nfc_rule(adapter, fsp->location);
948 if (!rule)
949 goto out;
950
951 fsp->flow_type = ETHER_FLOW;
952 fsp->ring_cookie = rule->action;
953
954 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
955 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
956 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
957 }
958
959 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
960 fsp->flow_type |= FLOW_EXT;
961 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
962 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
963 }
964
965 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
966 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
967 rule->filter.dst_addr);
968 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
969 }
970
971 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
972 ether_addr_copy(fsp->h_u.ether_spec.h_source,
973 rule->filter.src_addr);
974 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
975 }
976
977 mutex_unlock(&adapter->nfc_rule_lock);
978 return 0;
979
980 out:
981 mutex_unlock(&adapter->nfc_rule_lock);
982 return -EINVAL;
983 }
984
igc_ethtool_get_nfc_rules(struct igc_adapter * adapter,struct ethtool_rxnfc * cmd,u32 * rule_locs)985 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
986 struct ethtool_rxnfc *cmd,
987 u32 *rule_locs)
988 {
989 struct igc_nfc_rule *rule;
990 int cnt = 0;
991
992 cmd->data = IGC_MAX_RXNFC_RULES;
993
994 mutex_lock(&adapter->nfc_rule_lock);
995
996 list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
997 if (cnt == cmd->rule_cnt) {
998 mutex_unlock(&adapter->nfc_rule_lock);
999 return -EMSGSIZE;
1000 }
1001 rule_locs[cnt] = rule->location;
1002 cnt++;
1003 }
1004
1005 mutex_unlock(&adapter->nfc_rule_lock);
1006
1007 cmd->rule_cnt = cnt;
1008
1009 return 0;
1010 }
1011
igc_ethtool_get_rss_hash_opts(struct igc_adapter * adapter,struct ethtool_rxnfc * cmd)1012 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
1013 struct ethtool_rxnfc *cmd)
1014 {
1015 cmd->data = 0;
1016
1017 /* Report default options for RSS on igc */
1018 switch (cmd->flow_type) {
1019 case TCP_V4_FLOW:
1020 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1021 fallthrough;
1022 case UDP_V4_FLOW:
1023 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1024 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1025 fallthrough;
1026 case SCTP_V4_FLOW:
1027 case AH_ESP_V4_FLOW:
1028 case AH_V4_FLOW:
1029 case ESP_V4_FLOW:
1030 case IPV4_FLOW:
1031 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1032 break;
1033 case TCP_V6_FLOW:
1034 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1035 fallthrough;
1036 case UDP_V6_FLOW:
1037 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1038 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1039 fallthrough;
1040 case SCTP_V6_FLOW:
1041 case AH_ESP_V6_FLOW:
1042 case AH_V6_FLOW:
1043 case ESP_V6_FLOW:
1044 case IPV6_FLOW:
1045 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1046 break;
1047 default:
1048 return -EINVAL;
1049 }
1050
1051 return 0;
1052 }
1053
igc_ethtool_get_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd,u32 * rule_locs)1054 static int igc_ethtool_get_rxnfc(struct net_device *dev,
1055 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1056 {
1057 struct igc_adapter *adapter = netdev_priv(dev);
1058
1059 switch (cmd->cmd) {
1060 case ETHTOOL_GRXRINGS:
1061 cmd->data = adapter->num_rx_queues;
1062 return 0;
1063 case ETHTOOL_GRXCLSRLCNT:
1064 cmd->rule_cnt = adapter->nfc_rule_count;
1065 return 0;
1066 case ETHTOOL_GRXCLSRULE:
1067 return igc_ethtool_get_nfc_rule(adapter, cmd);
1068 case ETHTOOL_GRXCLSRLALL:
1069 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
1070 case ETHTOOL_GRXFH:
1071 return igc_ethtool_get_rss_hash_opts(adapter, cmd);
1072 default:
1073 return -EOPNOTSUPP;
1074 }
1075 }
1076
1077 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1078 IGC_FLAG_RSS_FIELD_IPV6_UDP)
igc_ethtool_set_rss_hash_opt(struct igc_adapter * adapter,struct ethtool_rxnfc * nfc)1079 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
1080 struct ethtool_rxnfc *nfc)
1081 {
1082 u32 flags = adapter->flags;
1083
1084 /* RSS does not support anything other than hashing
1085 * to queues on src and dst IPs and ports
1086 */
1087 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1088 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1089 return -EINVAL;
1090
1091 switch (nfc->flow_type) {
1092 case TCP_V4_FLOW:
1093 case TCP_V6_FLOW:
1094 if (!(nfc->data & RXH_IP_SRC) ||
1095 !(nfc->data & RXH_IP_DST) ||
1096 !(nfc->data & RXH_L4_B_0_1) ||
1097 !(nfc->data & RXH_L4_B_2_3))
1098 return -EINVAL;
1099 break;
1100 case UDP_V4_FLOW:
1101 if (!(nfc->data & RXH_IP_SRC) ||
1102 !(nfc->data & RXH_IP_DST))
1103 return -EINVAL;
1104 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1105 case 0:
1106 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1107 break;
1108 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1109 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1110 break;
1111 default:
1112 return -EINVAL;
1113 }
1114 break;
1115 case UDP_V6_FLOW:
1116 if (!(nfc->data & RXH_IP_SRC) ||
1117 !(nfc->data & RXH_IP_DST))
1118 return -EINVAL;
1119 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1120 case 0:
1121 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1122 break;
1123 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1124 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1125 break;
1126 default:
1127 return -EINVAL;
1128 }
1129 break;
1130 case AH_ESP_V4_FLOW:
1131 case AH_V4_FLOW:
1132 case ESP_V4_FLOW:
1133 case SCTP_V4_FLOW:
1134 case AH_ESP_V6_FLOW:
1135 case AH_V6_FLOW:
1136 case ESP_V6_FLOW:
1137 case SCTP_V6_FLOW:
1138 if (!(nfc->data & RXH_IP_SRC) ||
1139 !(nfc->data & RXH_IP_DST) ||
1140 (nfc->data & RXH_L4_B_0_1) ||
1141 (nfc->data & RXH_L4_B_2_3))
1142 return -EINVAL;
1143 break;
1144 default:
1145 return -EINVAL;
1146 }
1147
1148 /* if we changed something we need to update flags */
1149 if (flags != adapter->flags) {
1150 struct igc_hw *hw = &adapter->hw;
1151 u32 mrqc = rd32(IGC_MRQC);
1152
1153 if ((flags & UDP_RSS_FLAGS) &&
1154 !(adapter->flags & UDP_RSS_FLAGS))
1155 netdev_err(adapter->netdev,
1156 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1157
1158 adapter->flags = flags;
1159
1160 /* Perform hash on these packet types */
1161 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1162 IGC_MRQC_RSS_FIELD_IPV4_TCP |
1163 IGC_MRQC_RSS_FIELD_IPV6 |
1164 IGC_MRQC_RSS_FIELD_IPV6_TCP;
1165
1166 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1167 IGC_MRQC_RSS_FIELD_IPV6_UDP);
1168
1169 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1170 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1171
1172 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1173 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1174
1175 wr32(IGC_MRQC, mrqc);
1176 }
1177
1178 return 0;
1179 }
1180
igc_ethtool_init_nfc_rule(struct igc_nfc_rule * rule,const struct ethtool_rx_flow_spec * fsp)1181 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
1182 const struct ethtool_rx_flow_spec *fsp)
1183 {
1184 INIT_LIST_HEAD(&rule->list);
1185
1186 rule->action = fsp->ring_cookie;
1187 rule->location = fsp->location;
1188
1189 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1190 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
1191 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1192 }
1193
1194 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1195 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
1196 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1197 }
1198
1199 /* Both source and destination address filters only support the full
1200 * mask.
1201 */
1202 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1203 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1204 ether_addr_copy(rule->filter.src_addr,
1205 fsp->h_u.ether_spec.h_source);
1206 }
1207
1208 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1209 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1210 ether_addr_copy(rule->filter.dst_addr,
1211 fsp->h_u.ether_spec.h_dest);
1212 }
1213 }
1214
1215 /**
1216 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
1217 * @adapter: Pointer to adapter
1218 * @rule: Rule under evaluation
1219 *
1220 * The driver doesn't support rules with multiple matches so if more than
1221 * one bit in filter flags is set, @rule is considered invalid.
1222 *
1223 * Also, if there is already another rule with the same filter in a different
1224 * location, @rule is considered invalid.
1225 *
1226 * Context: Expects adapter->nfc_rule_lock to be held by caller.
1227 *
1228 * Return: 0 in case of success, negative errno code otherwise.
1229 */
igc_ethtool_check_nfc_rule(struct igc_adapter * adapter,struct igc_nfc_rule * rule)1230 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
1231 struct igc_nfc_rule *rule)
1232 {
1233 struct net_device *dev = adapter->netdev;
1234 u8 flags = rule->filter.match_flags;
1235 struct igc_nfc_rule *tmp;
1236
1237 if (!flags) {
1238 netdev_dbg(dev, "Rule with no match\n");
1239 return -EINVAL;
1240 }
1241
1242 if (flags & (flags - 1)) {
1243 netdev_dbg(dev, "Rule with multiple matches not supported\n");
1244 return -EOPNOTSUPP;
1245 }
1246
1247 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
1248 if (!memcmp(&rule->filter, &tmp->filter,
1249 sizeof(rule->filter)) &&
1250 tmp->location != rule->location) {
1251 netdev_dbg(dev, "Rule already exists\n");
1252 return -EEXIST;
1253 }
1254 }
1255
1256 return 0;
1257 }
1258
igc_ethtool_add_nfc_rule(struct igc_adapter * adapter,struct ethtool_rxnfc * cmd)1259 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
1260 struct ethtool_rxnfc *cmd)
1261 {
1262 struct net_device *netdev = adapter->netdev;
1263 struct ethtool_rx_flow_spec *fsp =
1264 (struct ethtool_rx_flow_spec *)&cmd->fs;
1265 struct igc_nfc_rule *rule, *old_rule;
1266 int err;
1267
1268 if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
1269 netdev_dbg(netdev, "N-tuple filters disabled\n");
1270 return -EOPNOTSUPP;
1271 }
1272
1273 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
1274 netdev_dbg(netdev, "Only ethernet flow type is supported\n");
1275 return -EOPNOTSUPP;
1276 }
1277
1278 if ((fsp->flow_type & FLOW_EXT) &&
1279 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1280 netdev_dbg(netdev, "VLAN mask not supported\n");
1281 return -EOPNOTSUPP;
1282 }
1283
1284 if (fsp->ring_cookie >= adapter->num_rx_queues) {
1285 netdev_dbg(netdev, "Invalid action\n");
1286 return -EINVAL;
1287 }
1288
1289 if (fsp->location >= IGC_MAX_RXNFC_RULES) {
1290 netdev_dbg(netdev, "Invalid location\n");
1291 return -EINVAL;
1292 }
1293
1294 rule = kzalloc(sizeof(*rule), GFP_KERNEL);
1295 if (!rule)
1296 return -ENOMEM;
1297
1298 igc_ethtool_init_nfc_rule(rule, fsp);
1299
1300 mutex_lock(&adapter->nfc_rule_lock);
1301
1302 err = igc_ethtool_check_nfc_rule(adapter, rule);
1303 if (err)
1304 goto err;
1305
1306 old_rule = igc_get_nfc_rule(adapter, fsp->location);
1307 if (old_rule)
1308 igc_del_nfc_rule(adapter, old_rule);
1309
1310 err = igc_add_nfc_rule(adapter, rule);
1311 if (err)
1312 goto err;
1313
1314 mutex_unlock(&adapter->nfc_rule_lock);
1315 return 0;
1316
1317 err:
1318 mutex_unlock(&adapter->nfc_rule_lock);
1319 kfree(rule);
1320 return err;
1321 }
1322
igc_ethtool_del_nfc_rule(struct igc_adapter * adapter,struct ethtool_rxnfc * cmd)1323 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
1324 struct ethtool_rxnfc *cmd)
1325 {
1326 struct ethtool_rx_flow_spec *fsp =
1327 (struct ethtool_rx_flow_spec *)&cmd->fs;
1328 struct igc_nfc_rule *rule;
1329
1330 mutex_lock(&adapter->nfc_rule_lock);
1331
1332 rule = igc_get_nfc_rule(adapter, fsp->location);
1333 if (!rule) {
1334 mutex_unlock(&adapter->nfc_rule_lock);
1335 return -EINVAL;
1336 }
1337
1338 igc_del_nfc_rule(adapter, rule);
1339
1340 mutex_unlock(&adapter->nfc_rule_lock);
1341 return 0;
1342 }
1343
igc_ethtool_set_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd)1344 static int igc_ethtool_set_rxnfc(struct net_device *dev,
1345 struct ethtool_rxnfc *cmd)
1346 {
1347 struct igc_adapter *adapter = netdev_priv(dev);
1348
1349 switch (cmd->cmd) {
1350 case ETHTOOL_SRXFH:
1351 return igc_ethtool_set_rss_hash_opt(adapter, cmd);
1352 case ETHTOOL_SRXCLSRLINS:
1353 return igc_ethtool_add_nfc_rule(adapter, cmd);
1354 case ETHTOOL_SRXCLSRLDEL:
1355 return igc_ethtool_del_nfc_rule(adapter, cmd);
1356 default:
1357 return -EOPNOTSUPP;
1358 }
1359 }
1360
igc_write_rss_indir_tbl(struct igc_adapter * adapter)1361 void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
1362 {
1363 struct igc_hw *hw = &adapter->hw;
1364 u32 reg = IGC_RETA(0);
1365 u32 shift = 0;
1366 int i = 0;
1367
1368 while (i < IGC_RETA_SIZE) {
1369 u32 val = 0;
1370 int j;
1371
1372 for (j = 3; j >= 0; j--) {
1373 val <<= 8;
1374 val |= adapter->rss_indir_tbl[i + j];
1375 }
1376
1377 wr32(reg, val << shift);
1378 reg += 4;
1379 i += 4;
1380 }
1381 }
1382
igc_ethtool_get_rxfh_indir_size(struct net_device * netdev)1383 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
1384 {
1385 return IGC_RETA_SIZE;
1386 }
1387
igc_ethtool_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)1388 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1389 u8 *hfunc)
1390 {
1391 struct igc_adapter *adapter = netdev_priv(netdev);
1392 int i;
1393
1394 if (hfunc)
1395 *hfunc = ETH_RSS_HASH_TOP;
1396 if (!indir)
1397 return 0;
1398 for (i = 0; i < IGC_RETA_SIZE; i++)
1399 indir[i] = adapter->rss_indir_tbl[i];
1400
1401 return 0;
1402 }
1403
igc_ethtool_set_rxfh(struct net_device * netdev,const u32 * indir,const u8 * key,const u8 hfunc)1404 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
1405 const u8 *key, const u8 hfunc)
1406 {
1407 struct igc_adapter *adapter = netdev_priv(netdev);
1408 u32 num_queues;
1409 int i;
1410
1411 /* We do not allow change in unsupported parameters */
1412 if (key ||
1413 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1414 return -EOPNOTSUPP;
1415 if (!indir)
1416 return 0;
1417
1418 num_queues = adapter->rss_queues;
1419
1420 /* Verify user input. */
1421 for (i = 0; i < IGC_RETA_SIZE; i++)
1422 if (indir[i] >= num_queues)
1423 return -EINVAL;
1424
1425 for (i = 0; i < IGC_RETA_SIZE; i++)
1426 adapter->rss_indir_tbl[i] = indir[i];
1427
1428 igc_write_rss_indir_tbl(adapter);
1429
1430 return 0;
1431 }
1432
igc_ethtool_get_channels(struct net_device * netdev,struct ethtool_channels * ch)1433 static void igc_ethtool_get_channels(struct net_device *netdev,
1434 struct ethtool_channels *ch)
1435 {
1436 struct igc_adapter *adapter = netdev_priv(netdev);
1437
1438 /* Report maximum channels */
1439 ch->max_combined = igc_get_max_rss_queues(adapter);
1440
1441 /* Report info for other vector */
1442 if (adapter->flags & IGC_FLAG_HAS_MSIX) {
1443 ch->max_other = NON_Q_VECTORS;
1444 ch->other_count = NON_Q_VECTORS;
1445 }
1446
1447 ch->combined_count = adapter->rss_queues;
1448 }
1449
igc_ethtool_set_channels(struct net_device * netdev,struct ethtool_channels * ch)1450 static int igc_ethtool_set_channels(struct net_device *netdev,
1451 struct ethtool_channels *ch)
1452 {
1453 struct igc_adapter *adapter = netdev_priv(netdev);
1454 unsigned int count = ch->combined_count;
1455 unsigned int max_combined = 0;
1456
1457 /* Verify they are not requesting separate vectors */
1458 if (!count || ch->rx_count || ch->tx_count)
1459 return -EINVAL;
1460
1461 /* Verify other_count is valid and has not been changed */
1462 if (ch->other_count != NON_Q_VECTORS)
1463 return -EINVAL;
1464
1465 /* Verify the number of channels doesn't exceed hw limits */
1466 max_combined = igc_get_max_rss_queues(adapter);
1467 if (count > max_combined)
1468 return -EINVAL;
1469
1470 if (count != adapter->rss_queues) {
1471 adapter->rss_queues = count;
1472 igc_set_flag_queue_pairs(adapter, max_combined);
1473
1474 /* Hardware has to reinitialize queues and interrupts to
1475 * match the new configuration.
1476 */
1477 return igc_reinit_queues(adapter);
1478 }
1479
1480 return 0;
1481 }
1482
igc_ethtool_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)1483 static int igc_ethtool_get_ts_info(struct net_device *dev,
1484 struct ethtool_ts_info *info)
1485 {
1486 struct igc_adapter *adapter = netdev_priv(dev);
1487
1488 if (adapter->ptp_clock)
1489 info->phc_index = ptp_clock_index(adapter->ptp_clock);
1490 else
1491 info->phc_index = -1;
1492
1493 switch (adapter->hw.mac.type) {
1494 case igc_i225:
1495 info->so_timestamping =
1496 SOF_TIMESTAMPING_TX_SOFTWARE |
1497 SOF_TIMESTAMPING_RX_SOFTWARE |
1498 SOF_TIMESTAMPING_SOFTWARE |
1499 SOF_TIMESTAMPING_TX_HARDWARE |
1500 SOF_TIMESTAMPING_RX_HARDWARE |
1501 SOF_TIMESTAMPING_RAW_HARDWARE;
1502
1503 info->tx_types =
1504 BIT(HWTSTAMP_TX_OFF) |
1505 BIT(HWTSTAMP_TX_ON);
1506
1507 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
1508 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
1509
1510 return 0;
1511 default:
1512 return -EOPNOTSUPP;
1513 }
1514 }
1515
igc_ethtool_get_priv_flags(struct net_device * netdev)1516 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
1517 {
1518 struct igc_adapter *adapter = netdev_priv(netdev);
1519 u32 priv_flags = 0;
1520
1521 if (adapter->flags & IGC_FLAG_RX_LEGACY)
1522 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
1523
1524 return priv_flags;
1525 }
1526
igc_ethtool_set_priv_flags(struct net_device * netdev,u32 priv_flags)1527 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
1528 {
1529 struct igc_adapter *adapter = netdev_priv(netdev);
1530 unsigned int flags = adapter->flags;
1531
1532 flags &= ~IGC_FLAG_RX_LEGACY;
1533 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
1534 flags |= IGC_FLAG_RX_LEGACY;
1535
1536 if (flags != adapter->flags) {
1537 adapter->flags = flags;
1538
1539 /* reset interface to repopulate queues */
1540 if (netif_running(netdev))
1541 igc_reinit_locked(adapter);
1542 }
1543
1544 return 0;
1545 }
1546
igc_ethtool_get_eee(struct net_device * netdev,struct ethtool_eee * edata)1547 static int igc_ethtool_get_eee(struct net_device *netdev,
1548 struct ethtool_eee *edata)
1549 {
1550 struct igc_adapter *adapter = netdev_priv(netdev);
1551 struct igc_hw *hw = &adapter->hw;
1552 u32 eeer;
1553
1554 if (hw->dev_spec._base.eee_enable)
1555 edata->advertised =
1556 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
1557
1558 *edata = adapter->eee;
1559 edata->supported = SUPPORTED_Autoneg;
1560
1561 eeer = rd32(IGC_EEER);
1562
1563 /* EEE status on negotiated link */
1564 if (eeer & IGC_EEER_EEE_NEG)
1565 edata->eee_active = true;
1566
1567 if (eeer & IGC_EEER_TX_LPI_EN)
1568 edata->tx_lpi_enabled = true;
1569
1570 edata->eee_enabled = hw->dev_spec._base.eee_enable;
1571
1572 edata->advertised = SUPPORTED_Autoneg;
1573 edata->lp_advertised = SUPPORTED_Autoneg;
1574
1575 /* Report correct negotiated EEE status for devices that
1576 * wrongly report EEE at half-duplex
1577 */
1578 if (adapter->link_duplex == HALF_DUPLEX) {
1579 edata->eee_enabled = false;
1580 edata->eee_active = false;
1581 edata->tx_lpi_enabled = false;
1582 edata->advertised &= ~edata->advertised;
1583 }
1584
1585 return 0;
1586 }
1587
igc_ethtool_set_eee(struct net_device * netdev,struct ethtool_eee * edata)1588 static int igc_ethtool_set_eee(struct net_device *netdev,
1589 struct ethtool_eee *edata)
1590 {
1591 struct igc_adapter *adapter = netdev_priv(netdev);
1592 struct igc_hw *hw = &adapter->hw;
1593 struct ethtool_eee eee_curr;
1594 s32 ret_val;
1595
1596 memset(&eee_curr, 0, sizeof(struct ethtool_eee));
1597
1598 ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
1599 if (ret_val) {
1600 netdev_err(netdev,
1601 "Problem setting EEE advertisement options\n");
1602 return -EINVAL;
1603 }
1604
1605 if (eee_curr.eee_enabled) {
1606 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
1607 netdev_err(netdev,
1608 "Setting EEE tx-lpi is not supported\n");
1609 return -EINVAL;
1610 }
1611
1612 /* Tx LPI timer is not implemented currently */
1613 if (edata->tx_lpi_timer) {
1614 netdev_err(netdev,
1615 "Setting EEE Tx LPI timer is not supported\n");
1616 return -EINVAL;
1617 }
1618 } else if (!edata->eee_enabled) {
1619 netdev_err(netdev,
1620 "Setting EEE options are not supported with EEE disabled\n");
1621 return -EINVAL;
1622 }
1623
1624 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
1625 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
1626 hw->dev_spec._base.eee_enable = edata->eee_enabled;
1627 adapter->flags |= IGC_FLAG_EEE;
1628
1629 /* reset link */
1630 if (netif_running(netdev))
1631 igc_reinit_locked(adapter);
1632 else
1633 igc_reset(adapter);
1634 }
1635
1636 return 0;
1637 }
1638
igc_ethtool_begin(struct net_device * netdev)1639 static int igc_ethtool_begin(struct net_device *netdev)
1640 {
1641 struct igc_adapter *adapter = netdev_priv(netdev);
1642
1643 pm_runtime_get_sync(&adapter->pdev->dev);
1644 return 0;
1645 }
1646
igc_ethtool_complete(struct net_device * netdev)1647 static void igc_ethtool_complete(struct net_device *netdev)
1648 {
1649 struct igc_adapter *adapter = netdev_priv(netdev);
1650
1651 pm_runtime_put(&adapter->pdev->dev);
1652 }
1653
igc_ethtool_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)1654 static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
1655 struct ethtool_link_ksettings *cmd)
1656 {
1657 struct igc_adapter *adapter = netdev_priv(netdev);
1658 struct igc_hw *hw = &adapter->hw;
1659 u32 status;
1660 u32 speed;
1661
1662 ethtool_link_ksettings_zero_link_mode(cmd, supported);
1663 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
1664
1665 /* supported link modes */
1666 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
1667 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
1668 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
1669 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
1670 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
1671 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
1672
1673 /* twisted pair */
1674 cmd->base.port = PORT_TP;
1675 cmd->base.phy_address = hw->phy.addr;
1676
1677 /* advertising link modes */
1678 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
1679 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
1680 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
1681 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
1682 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
1683 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
1684 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
1685 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
1686 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
1687 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
1688 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
1689 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
1690
1691 /* set autoneg settings */
1692 if (hw->mac.autoneg == 1) {
1693 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
1694 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1695 Autoneg);
1696 }
1697
1698 /* Set pause flow control settings */
1699 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
1700
1701 switch (hw->fc.requested_mode) {
1702 case igc_fc_full:
1703 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1704 break;
1705 case igc_fc_rx_pause:
1706 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
1707 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1708 Asym_Pause);
1709 break;
1710 case igc_fc_tx_pause:
1711 ethtool_link_ksettings_add_link_mode(cmd, advertising,
1712 Asym_Pause);
1713 break;
1714 default:
1715 break;
1716 }
1717
1718 status = pm_runtime_suspended(&adapter->pdev->dev) ?
1719 0 : rd32(IGC_STATUS);
1720
1721 if (status & IGC_STATUS_LU) {
1722 if (status & IGC_STATUS_SPEED_1000) {
1723 /* For I225, STATUS will indicate 1G speed in both
1724 * 1 Gbps and 2.5 Gbps link modes.
1725 * An additional bit is used
1726 * to differentiate between 1 Gbps and 2.5 Gbps.
1727 */
1728 if (hw->mac.type == igc_i225 &&
1729 (status & IGC_STATUS_SPEED_2500)) {
1730 speed = SPEED_2500;
1731 } else {
1732 speed = SPEED_1000;
1733 }
1734 } else if (status & IGC_STATUS_SPEED_100) {
1735 speed = SPEED_100;
1736 } else {
1737 speed = SPEED_10;
1738 }
1739 if ((status & IGC_STATUS_FD) ||
1740 hw->phy.media_type != igc_media_type_copper)
1741 cmd->base.duplex = DUPLEX_FULL;
1742 else
1743 cmd->base.duplex = DUPLEX_HALF;
1744 } else {
1745 speed = SPEED_UNKNOWN;
1746 cmd->base.duplex = DUPLEX_UNKNOWN;
1747 }
1748 cmd->base.speed = speed;
1749 if (hw->mac.autoneg)
1750 cmd->base.autoneg = AUTONEG_ENABLE;
1751 else
1752 cmd->base.autoneg = AUTONEG_DISABLE;
1753
1754 /* MDI-X => 2; MDI =>1; Invalid =>0 */
1755 if (hw->phy.media_type == igc_media_type_copper)
1756 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
1757 ETH_TP_MDI;
1758 else
1759 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
1760
1761 if (hw->phy.mdix == AUTO_ALL_MODES)
1762 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
1763 else
1764 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
1765
1766 return 0;
1767 }
1768
1769 static int
igc_ethtool_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * cmd)1770 igc_ethtool_set_link_ksettings(struct net_device *netdev,
1771 const struct ethtool_link_ksettings *cmd)
1772 {
1773 struct igc_adapter *adapter = netdev_priv(netdev);
1774 struct net_device *dev = adapter->netdev;
1775 struct igc_hw *hw = &adapter->hw;
1776 u32 advertising;
1777
1778 /* When adapter in resetting mode, autoneg/speed/duplex
1779 * cannot be changed
1780 */
1781 if (igc_check_reset_block(hw)) {
1782 netdev_err(dev, "Cannot change link characteristics when reset is active\n");
1783 return -EINVAL;
1784 }
1785
1786 /* MDI setting is only allowed when autoneg enabled because
1787 * some hardware doesn't allow MDI setting when speed or
1788 * duplex is forced.
1789 */
1790 if (cmd->base.eth_tp_mdix_ctrl) {
1791 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
1792 cmd->base.autoneg != AUTONEG_ENABLE) {
1793 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
1794 return -EINVAL;
1795 }
1796 }
1797
1798 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
1799 usleep_range(1000, 2000);
1800
1801 ethtool_convert_link_mode_to_legacy_u32(&advertising,
1802 cmd->link_modes.advertising);
1803 /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT.
1804 * We have to check this and convert it to ADVERTISE_2500_FULL
1805 * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly.
1806 */
1807 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full))
1808 advertising |= ADVERTISE_2500_FULL;
1809
1810 if (cmd->base.autoneg == AUTONEG_ENABLE) {
1811 hw->mac.autoneg = 1;
1812 hw->phy.autoneg_advertised = advertising;
1813 if (adapter->fc_autoneg)
1814 hw->fc.requested_mode = igc_fc_default;
1815 } else {
1816 netdev_info(dev, "Force mode currently not supported\n");
1817 }
1818
1819 /* MDI-X => 2; MDI => 1; Auto => 3 */
1820 if (cmd->base.eth_tp_mdix_ctrl) {
1821 /* fix up the value for auto (3 => 0) as zero is mapped
1822 * internally to auto
1823 */
1824 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
1825 hw->phy.mdix = AUTO_ALL_MODES;
1826 else
1827 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
1828 }
1829
1830 /* reset the link */
1831 if (netif_running(adapter->netdev)) {
1832 igc_down(adapter);
1833 igc_up(adapter);
1834 } else {
1835 igc_reset(adapter);
1836 }
1837
1838 clear_bit(__IGC_RESETTING, &adapter->state);
1839
1840 return 0;
1841 }
1842
igc_ethtool_diag_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)1843 static void igc_ethtool_diag_test(struct net_device *netdev,
1844 struct ethtool_test *eth_test, u64 *data)
1845 {
1846 struct igc_adapter *adapter = netdev_priv(netdev);
1847 bool if_running = netif_running(netdev);
1848
1849 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1850 netdev_info(adapter->netdev, "Offline testing starting");
1851 set_bit(__IGC_TESTING, &adapter->state);
1852
1853 /* Link test performed before hardware reset so autoneg doesn't
1854 * interfere with test result
1855 */
1856 if (!igc_link_test(adapter, &data[TEST_LINK]))
1857 eth_test->flags |= ETH_TEST_FL_FAILED;
1858
1859 if (if_running)
1860 igc_close(netdev);
1861 else
1862 igc_reset(adapter);
1863
1864 netdev_info(adapter->netdev, "Register testing starting");
1865 if (!igc_reg_test(adapter, &data[TEST_REG]))
1866 eth_test->flags |= ETH_TEST_FL_FAILED;
1867
1868 igc_reset(adapter);
1869
1870 netdev_info(adapter->netdev, "EEPROM testing starting");
1871 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
1872 eth_test->flags |= ETH_TEST_FL_FAILED;
1873
1874 igc_reset(adapter);
1875
1876 /* loopback and interrupt tests
1877 * will be implemented in the future
1878 */
1879 data[TEST_LOOP] = 0;
1880 data[TEST_IRQ] = 0;
1881
1882 clear_bit(__IGC_TESTING, &adapter->state);
1883 if (if_running)
1884 igc_open(netdev);
1885 } else {
1886 netdev_info(adapter->netdev, "Online testing starting");
1887
1888 /* register, eeprom, intr and loopback tests not run online */
1889 data[TEST_REG] = 0;
1890 data[TEST_EEP] = 0;
1891 data[TEST_IRQ] = 0;
1892 data[TEST_LOOP] = 0;
1893
1894 if (!igc_link_test(adapter, &data[TEST_LINK]))
1895 eth_test->flags |= ETH_TEST_FL_FAILED;
1896 }
1897
1898 msleep_interruptible(4 * 1000);
1899 }
1900
1901 static const struct ethtool_ops igc_ethtool_ops = {
1902 .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
1903 .get_drvinfo = igc_ethtool_get_drvinfo,
1904 .get_regs_len = igc_ethtool_get_regs_len,
1905 .get_regs = igc_ethtool_get_regs,
1906 .get_wol = igc_ethtool_get_wol,
1907 .set_wol = igc_ethtool_set_wol,
1908 .get_msglevel = igc_ethtool_get_msglevel,
1909 .set_msglevel = igc_ethtool_set_msglevel,
1910 .nway_reset = igc_ethtool_nway_reset,
1911 .get_link = igc_ethtool_get_link,
1912 .get_eeprom_len = igc_ethtool_get_eeprom_len,
1913 .get_eeprom = igc_ethtool_get_eeprom,
1914 .set_eeprom = igc_ethtool_set_eeprom,
1915 .get_ringparam = igc_ethtool_get_ringparam,
1916 .set_ringparam = igc_ethtool_set_ringparam,
1917 .get_pauseparam = igc_ethtool_get_pauseparam,
1918 .set_pauseparam = igc_ethtool_set_pauseparam,
1919 .get_strings = igc_ethtool_get_strings,
1920 .get_sset_count = igc_ethtool_get_sset_count,
1921 .get_ethtool_stats = igc_ethtool_get_stats,
1922 .get_coalesce = igc_ethtool_get_coalesce,
1923 .set_coalesce = igc_ethtool_set_coalesce,
1924 .get_rxnfc = igc_ethtool_get_rxnfc,
1925 .set_rxnfc = igc_ethtool_set_rxnfc,
1926 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size,
1927 .get_rxfh = igc_ethtool_get_rxfh,
1928 .set_rxfh = igc_ethtool_set_rxfh,
1929 .get_ts_info = igc_ethtool_get_ts_info,
1930 .get_channels = igc_ethtool_get_channels,
1931 .set_channels = igc_ethtool_set_channels,
1932 .get_priv_flags = igc_ethtool_get_priv_flags,
1933 .set_priv_flags = igc_ethtool_set_priv_flags,
1934 .get_eee = igc_ethtool_get_eee,
1935 .set_eee = igc_ethtool_set_eee,
1936 .begin = igc_ethtool_begin,
1937 .complete = igc_ethtool_complete,
1938 .get_link_ksettings = igc_ethtool_get_link_ksettings,
1939 .set_link_ksettings = igc_ethtool_set_link_ksettings,
1940 .self_test = igc_ethtool_diag_test,
1941 };
1942
igc_ethtool_set_ops(struct net_device * netdev)1943 void igc_ethtool_set_ops(struct net_device *netdev)
1944 {
1945 netdev->ethtool_ops = &igc_ethtool_ops;
1946 }
1947