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