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[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / intel / ixgbevf / ethtool.c
1 /*******************************************************************************
2
3 Intel 82599 Virtual Function driver
4 Copyright(c) 1999 - 2015 Intel Corporation.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, see <http://www.gnu.org/licenses/>.
17
18 The full GNU General Public License is included in this distribution in
19 the file called "COPYING".
20
21 Contact Information:
22 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24
25 *******************************************************************************/
26
27 /* ethtool support for ixgbevf */
28
29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30
31 #include <linux/types.h>
32 #include <linux/module.h>
33 #include <linux/slab.h>
34 #include <linux/pci.h>
35 #include <linux/netdevice.h>
36 #include <linux/ethtool.h>
37 #include <linux/vmalloc.h>
38 #include <linux/if_vlan.h>
39 #include <linux/uaccess.h>
40
41 #include "ixgbevf.h"
42
43 #define IXGBE_ALL_RAR_ENTRIES 16
44
45 struct ixgbe_stats {
46 char stat_string[ETH_GSTRING_LEN];
47 struct {
48 int sizeof_stat;
49 int stat_offset;
50 int base_stat_offset;
51 int saved_reset_offset;
52 };
53 };
54
55 #define IXGBEVF_STAT(m, b, r) { \
56 .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
57 .stat_offset = offsetof(struct ixgbevf_adapter, m), \
58 .base_stat_offset = offsetof(struct ixgbevf_adapter, b), \
59 .saved_reset_offset = offsetof(struct ixgbevf_adapter, r) \
60 }
61
62 #define IXGBEVF_ZSTAT(m) { \
63 .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
64 .stat_offset = offsetof(struct ixgbevf_adapter, m), \
65 .base_stat_offset = -1, \
66 .saved_reset_offset = -1 \
67 }
68
69 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
70 {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
71 stats.saved_reset_vfgprc)},
72 {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
73 stats.saved_reset_vfgptc)},
74 {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
75 stats.saved_reset_vfgorc)},
76 {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
77 stats.saved_reset_vfgotc)},
78 {"tx_busy", IXGBEVF_ZSTAT(tx_busy)},
79 {"tx_restart_queue", IXGBEVF_ZSTAT(restart_queue)},
80 {"tx_timeout_count", IXGBEVF_ZSTAT(tx_timeout_count)},
81 {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
82 stats.saved_reset_vfmprc)},
83 {"rx_csum_offload_errors", IXGBEVF_ZSTAT(hw_csum_rx_error)},
84 #ifdef BP_EXTENDED_STATS
85 {"rx_bp_poll_yield", IXGBEVF_ZSTAT(bp_rx_yields)},
86 {"rx_bp_cleaned", IXGBEVF_ZSTAT(bp_rx_cleaned)},
87 {"rx_bp_misses", IXGBEVF_ZSTAT(bp_rx_missed)},
88 {"tx_bp_napi_yield", IXGBEVF_ZSTAT(bp_tx_yields)},
89 {"tx_bp_cleaned", IXGBEVF_ZSTAT(bp_tx_cleaned)},
90 {"tx_bp_misses", IXGBEVF_ZSTAT(bp_tx_missed)},
91 #endif
92 };
93
94 #define IXGBE_QUEUE_STATS_LEN 0
95 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
96
97 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
98 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
99 "Register test (offline)",
100 "Link test (on/offline)"
101 };
102
103 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
104
105 static int ixgbevf_get_settings(struct net_device *netdev,
106 struct ethtool_cmd *ecmd)
107 {
108 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
109 struct ixgbe_hw *hw = &adapter->hw;
110 u32 link_speed = 0;
111 bool link_up;
112
113 ecmd->supported = SUPPORTED_10000baseT_Full;
114 ecmd->autoneg = AUTONEG_DISABLE;
115 ecmd->transceiver = XCVR_DUMMY1;
116 ecmd->port = -1;
117
118 hw->mac.get_link_status = 1;
119 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
120
121 if (link_up) {
122 __u32 speed = SPEED_10000;
123
124 switch (link_speed) {
125 case IXGBE_LINK_SPEED_10GB_FULL:
126 speed = SPEED_10000;
127 break;
128 case IXGBE_LINK_SPEED_1GB_FULL:
129 speed = SPEED_1000;
130 break;
131 case IXGBE_LINK_SPEED_100_FULL:
132 speed = SPEED_100;
133 break;
134 }
135
136 ethtool_cmd_speed_set(ecmd, speed);
137 ecmd->duplex = DUPLEX_FULL;
138 } else {
139 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
140 ecmd->duplex = DUPLEX_UNKNOWN;
141 }
142
143 return 0;
144 }
145
146 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
147 {
148 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
149
150 return adapter->msg_enable;
151 }
152
153 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
154 {
155 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
156
157 adapter->msg_enable = data;
158 }
159
160 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
161
162 static int ixgbevf_get_regs_len(struct net_device *netdev)
163 {
164 #define IXGBE_REGS_LEN 45
165 return IXGBE_REGS_LEN * sizeof(u32);
166 }
167
168 static void ixgbevf_get_regs(struct net_device *netdev,
169 struct ethtool_regs *regs,
170 void *p)
171 {
172 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
173 struct ixgbe_hw *hw = &adapter->hw;
174 u32 *regs_buff = p;
175 u32 regs_len = ixgbevf_get_regs_len(netdev);
176 u8 i;
177
178 memset(p, 0, regs_len);
179
180 regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
181
182 /* General Registers */
183 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
184 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
185 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
186 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
187 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
188
189 /* Interrupt */
190 /* don't read EICR because it can clear interrupt causes, instead
191 * read EICS which is a shadow but doesn't clear EICR
192 */
193 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
194 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
195 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
196 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
197 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
198 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
199 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
200 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
201 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
202
203 /* Receive DMA */
204 for (i = 0; i < 2; i++)
205 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
206 for (i = 0; i < 2; i++)
207 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
208 for (i = 0; i < 2; i++)
209 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
210 for (i = 0; i < 2; i++)
211 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
212 for (i = 0; i < 2; i++)
213 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
214 for (i = 0; i < 2; i++)
215 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
216 for (i = 0; i < 2; i++)
217 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
218
219 /* Receive */
220 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
221
222 /* Transmit */
223 for (i = 0; i < 2; i++)
224 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
225 for (i = 0; i < 2; i++)
226 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
227 for (i = 0; i < 2; i++)
228 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
229 for (i = 0; i < 2; i++)
230 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
231 for (i = 0; i < 2; i++)
232 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
233 for (i = 0; i < 2; i++)
234 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
235 for (i = 0; i < 2; i++)
236 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
237 for (i = 0; i < 2; i++)
238 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
239 }
240
241 static void ixgbevf_get_drvinfo(struct net_device *netdev,
242 struct ethtool_drvinfo *drvinfo)
243 {
244 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
245
246 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
247 strlcpy(drvinfo->version, ixgbevf_driver_version,
248 sizeof(drvinfo->version));
249 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
250 sizeof(drvinfo->bus_info));
251 }
252
253 static void ixgbevf_get_ringparam(struct net_device *netdev,
254 struct ethtool_ringparam *ring)
255 {
256 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
257
258 ring->rx_max_pending = IXGBEVF_MAX_RXD;
259 ring->tx_max_pending = IXGBEVF_MAX_TXD;
260 ring->rx_pending = adapter->rx_ring_count;
261 ring->tx_pending = adapter->tx_ring_count;
262 }
263
264 static int ixgbevf_set_ringparam(struct net_device *netdev,
265 struct ethtool_ringparam *ring)
266 {
267 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
268 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
269 u32 new_rx_count, new_tx_count;
270 int i, err = 0;
271
272 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
273 return -EINVAL;
274
275 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD);
276 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD);
277 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
278
279 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD);
280 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD);
281 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
282
283 /* if nothing to do return success */
284 if ((new_tx_count == adapter->tx_ring_count) &&
285 (new_rx_count == adapter->rx_ring_count))
286 return 0;
287
288 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
289 usleep_range(1000, 2000);
290
291 if (!netif_running(adapter->netdev)) {
292 for (i = 0; i < adapter->num_tx_queues; i++)
293 adapter->tx_ring[i]->count = new_tx_count;
294 for (i = 0; i < adapter->num_rx_queues; i++)
295 adapter->rx_ring[i]->count = new_rx_count;
296 adapter->tx_ring_count = new_tx_count;
297 adapter->rx_ring_count = new_rx_count;
298 goto clear_reset;
299 }
300
301 if (new_tx_count != adapter->tx_ring_count) {
302 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring));
303 if (!tx_ring) {
304 err = -ENOMEM;
305 goto clear_reset;
306 }
307
308 for (i = 0; i < adapter->num_tx_queues; i++) {
309 /* clone ring and setup updated count */
310 tx_ring[i] = *adapter->tx_ring[i];
311 tx_ring[i].count = new_tx_count;
312 err = ixgbevf_setup_tx_resources(&tx_ring[i]);
313 if (err) {
314 while (i) {
315 i--;
316 ixgbevf_free_tx_resources(&tx_ring[i]);
317 }
318
319 vfree(tx_ring);
320 tx_ring = NULL;
321
322 goto clear_reset;
323 }
324 }
325 }
326
327 if (new_rx_count != adapter->rx_ring_count) {
328 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring));
329 if (!rx_ring) {
330 err = -ENOMEM;
331 goto clear_reset;
332 }
333
334 for (i = 0; i < adapter->num_rx_queues; i++) {
335 /* clone ring and setup updated count */
336 rx_ring[i] = *adapter->rx_ring[i];
337 rx_ring[i].count = new_rx_count;
338 err = ixgbevf_setup_rx_resources(&rx_ring[i]);
339 if (err) {
340 while (i) {
341 i--;
342 ixgbevf_free_rx_resources(&rx_ring[i]);
343 }
344
345 vfree(rx_ring);
346 rx_ring = NULL;
347
348 goto clear_reset;
349 }
350 }
351 }
352
353 /* bring interface down to prepare for update */
354 ixgbevf_down(adapter);
355
356 /* Tx */
357 if (tx_ring) {
358 for (i = 0; i < adapter->num_tx_queues; i++) {
359 ixgbevf_free_tx_resources(adapter->tx_ring[i]);
360 *adapter->tx_ring[i] = tx_ring[i];
361 }
362 adapter->tx_ring_count = new_tx_count;
363
364 vfree(tx_ring);
365 tx_ring = NULL;
366 }
367
368 /* Rx */
369 if (rx_ring) {
370 for (i = 0; i < adapter->num_rx_queues; i++) {
371 ixgbevf_free_rx_resources(adapter->rx_ring[i]);
372 *adapter->rx_ring[i] = rx_ring[i];
373 }
374 adapter->rx_ring_count = new_rx_count;
375
376 vfree(rx_ring);
377 rx_ring = NULL;
378 }
379
380 /* restore interface using new values */
381 ixgbevf_up(adapter);
382
383 clear_reset:
384 /* free Tx resources if Rx error is encountered */
385 if (tx_ring) {
386 for (i = 0; i < adapter->num_tx_queues; i++)
387 ixgbevf_free_tx_resources(&tx_ring[i]);
388 vfree(tx_ring);
389 }
390
391 clear_bit(__IXGBEVF_RESETTING, &adapter->state);
392 return err;
393 }
394
395 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
396 {
397 switch (stringset) {
398 case ETH_SS_TEST:
399 return IXGBE_TEST_LEN;
400 case ETH_SS_STATS:
401 return IXGBE_GLOBAL_STATS_LEN;
402 default:
403 return -EINVAL;
404 }
405 }
406
407 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
408 struct ethtool_stats *stats, u64 *data)
409 {
410 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
411 char *base = (char *)adapter;
412 int i;
413 #ifdef BP_EXTENDED_STATS
414 u64 rx_yields = 0, rx_cleaned = 0, rx_missed = 0,
415 tx_yields = 0, tx_cleaned = 0, tx_missed = 0;
416
417 for (i = 0; i < adapter->num_rx_queues; i++) {
418 rx_yields += adapter->rx_ring[i]->stats.yields;
419 rx_cleaned += adapter->rx_ring[i]->stats.cleaned;
420 rx_yields += adapter->rx_ring[i]->stats.yields;
421 }
422
423 for (i = 0; i < adapter->num_tx_queues; i++) {
424 tx_yields += adapter->tx_ring[i]->stats.yields;
425 tx_cleaned += adapter->tx_ring[i]->stats.cleaned;
426 tx_yields += adapter->tx_ring[i]->stats.yields;
427 }
428
429 adapter->bp_rx_yields = rx_yields;
430 adapter->bp_rx_cleaned = rx_cleaned;
431 adapter->bp_rx_missed = rx_missed;
432
433 adapter->bp_tx_yields = tx_yields;
434 adapter->bp_tx_cleaned = tx_cleaned;
435 adapter->bp_tx_missed = tx_missed;
436 #endif
437
438 ixgbevf_update_stats(adapter);
439 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
440 char *p = base + ixgbe_gstrings_stats[i].stat_offset;
441 char *b = base + ixgbe_gstrings_stats[i].base_stat_offset;
442 char *r = base + ixgbe_gstrings_stats[i].saved_reset_offset;
443
444 if (ixgbe_gstrings_stats[i].sizeof_stat == sizeof(u64)) {
445 if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
446 data[i] = *(u64 *)p - *(u64 *)b + *(u64 *)r;
447 else
448 data[i] = *(u64 *)p;
449 } else {
450 if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
451 data[i] = *(u32 *)p - *(u32 *)b + *(u32 *)r;
452 else
453 data[i] = *(u32 *)p;
454 }
455 }
456 }
457
458 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
459 u8 *data)
460 {
461 char *p = (char *)data;
462 int i;
463
464 switch (stringset) {
465 case ETH_SS_TEST:
466 memcpy(data, *ixgbe_gstrings_test,
467 IXGBE_TEST_LEN * ETH_GSTRING_LEN);
468 break;
469 case ETH_SS_STATS:
470 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
471 memcpy(p, ixgbe_gstrings_stats[i].stat_string,
472 ETH_GSTRING_LEN);
473 p += ETH_GSTRING_LEN;
474 }
475 break;
476 }
477 }
478
479 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
480 {
481 struct ixgbe_hw *hw = &adapter->hw;
482 bool link_up;
483 u32 link_speed = 0;
484 *data = 0;
485
486 hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
487 if (!link_up)
488 *data = 1;
489
490 return *data;
491 }
492
493 /* ethtool register test data */
494 struct ixgbevf_reg_test {
495 u16 reg;
496 u8 array_len;
497 u8 test_type;
498 u32 mask;
499 u32 write;
500 };
501
502 /* In the hardware, registers are laid out either singly, in arrays
503 * spaced 0x40 bytes apart, or in contiguous tables. We assume
504 * most tests take place on arrays or single registers (handled
505 * as a single-element array) and special-case the tables.
506 * Table tests are always pattern tests.
507 *
508 * We also make provision for some required setup steps by specifying
509 * registers to be written without any read-back testing.
510 */
511
512 #define PATTERN_TEST 1
513 #define SET_READ_TEST 2
514 #define WRITE_NO_TEST 3
515 #define TABLE32_TEST 4
516 #define TABLE64_TEST_LO 5
517 #define TABLE64_TEST_HI 6
518
519 /* default VF register test */
520 static const struct ixgbevf_reg_test reg_test_vf[] = {
521 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
522 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
523 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
524 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
525 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
526 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
527 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
528 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
529 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
530 { .reg = 0 }
531 };
532
533 static const u32 register_test_patterns[] = {
534 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
535 };
536
537 static bool reg_pattern_test(struct ixgbevf_adapter *adapter, u64 *data,
538 int reg, u32 mask, u32 write)
539 {
540 u32 pat, val, before;
541
542 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
543 *data = 1;
544 return true;
545 }
546 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {
547 before = ixgbevf_read_reg(&adapter->hw, reg);
548 ixgbe_write_reg(&adapter->hw, reg,
549 register_test_patterns[pat] & write);
550 val = ixgbevf_read_reg(&adapter->hw, reg);
551 if (val != (register_test_patterns[pat] & write & mask)) {
552 hw_dbg(&adapter->hw,
553 "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
554 reg, val,
555 register_test_patterns[pat] & write & mask);
556 *data = reg;
557 ixgbe_write_reg(&adapter->hw, reg, before);
558 return true;
559 }
560 ixgbe_write_reg(&adapter->hw, reg, before);
561 }
562 return false;
563 }
564
565 static bool reg_set_and_check(struct ixgbevf_adapter *adapter, u64 *data,
566 int reg, u32 mask, u32 write)
567 {
568 u32 val, before;
569
570 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
571 *data = 1;
572 return true;
573 }
574 before = ixgbevf_read_reg(&adapter->hw, reg);
575 ixgbe_write_reg(&adapter->hw, reg, write & mask);
576 val = ixgbevf_read_reg(&adapter->hw, reg);
577 if ((write & mask) != (val & mask)) {
578 pr_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
579 reg, (val & mask), write & mask);
580 *data = reg;
581 ixgbe_write_reg(&adapter->hw, reg, before);
582 return true;
583 }
584 ixgbe_write_reg(&adapter->hw, reg, before);
585 return false;
586 }
587
588 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
589 {
590 const struct ixgbevf_reg_test *test;
591 u32 i;
592
593 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
594 dev_err(&adapter->pdev->dev,
595 "Adapter removed - register test blocked\n");
596 *data = 1;
597 return 1;
598 }
599 test = reg_test_vf;
600
601 /* Perform the register test, looping through the test table
602 * until we either fail or reach the null entry.
603 */
604 while (test->reg) {
605 for (i = 0; i < test->array_len; i++) {
606 bool b = false;
607
608 switch (test->test_type) {
609 case PATTERN_TEST:
610 b = reg_pattern_test(adapter, data,
611 test->reg + (i * 0x40),
612 test->mask,
613 test->write);
614 break;
615 case SET_READ_TEST:
616 b = reg_set_and_check(adapter, data,
617 test->reg + (i * 0x40),
618 test->mask,
619 test->write);
620 break;
621 case WRITE_NO_TEST:
622 ixgbe_write_reg(&adapter->hw,
623 test->reg + (i * 0x40),
624 test->write);
625 break;
626 case TABLE32_TEST:
627 b = reg_pattern_test(adapter, data,
628 test->reg + (i * 4),
629 test->mask,
630 test->write);
631 break;
632 case TABLE64_TEST_LO:
633 b = reg_pattern_test(adapter, data,
634 test->reg + (i * 8),
635 test->mask,
636 test->write);
637 break;
638 case TABLE64_TEST_HI:
639 b = reg_pattern_test(adapter, data,
640 test->reg + 4 + (i * 8),
641 test->mask,
642 test->write);
643 break;
644 }
645 if (b)
646 return 1;
647 }
648 test++;
649 }
650
651 *data = 0;
652 return *data;
653 }
654
655 static void ixgbevf_diag_test(struct net_device *netdev,
656 struct ethtool_test *eth_test, u64 *data)
657 {
658 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
659 bool if_running = netif_running(netdev);
660
661 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
662 dev_err(&adapter->pdev->dev,
663 "Adapter removed - test blocked\n");
664 data[0] = 1;
665 data[1] = 1;
666 eth_test->flags |= ETH_TEST_FL_FAILED;
667 return;
668 }
669 set_bit(__IXGBEVF_TESTING, &adapter->state);
670 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
671 /* Offline tests */
672
673 hw_dbg(&adapter->hw, "offline testing starting\n");
674
675 /* Link test performed before hardware reset so autoneg doesn't
676 * interfere with test result
677 */
678 if (ixgbevf_link_test(adapter, &data[1]))
679 eth_test->flags |= ETH_TEST_FL_FAILED;
680
681 if (if_running)
682 /* indicate we're in test mode */
683 ixgbevf_close(netdev);
684 else
685 ixgbevf_reset(adapter);
686
687 hw_dbg(&adapter->hw, "register testing starting\n");
688 if (ixgbevf_reg_test(adapter, &data[0]))
689 eth_test->flags |= ETH_TEST_FL_FAILED;
690
691 ixgbevf_reset(adapter);
692
693 clear_bit(__IXGBEVF_TESTING, &adapter->state);
694 if (if_running)
695 ixgbevf_open(netdev);
696 } else {
697 hw_dbg(&adapter->hw, "online testing starting\n");
698 /* Online tests */
699 if (ixgbevf_link_test(adapter, &data[1]))
700 eth_test->flags |= ETH_TEST_FL_FAILED;
701
702 /* Online tests aren't run; pass by default */
703 data[0] = 0;
704
705 clear_bit(__IXGBEVF_TESTING, &adapter->state);
706 }
707 msleep_interruptible(4 * 1000);
708 }
709
710 static int ixgbevf_nway_reset(struct net_device *netdev)
711 {
712 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
713
714 if (netif_running(netdev))
715 ixgbevf_reinit_locked(adapter);
716
717 return 0;
718 }
719
720 static int ixgbevf_get_coalesce(struct net_device *netdev,
721 struct ethtool_coalesce *ec)
722 {
723 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
724
725 /* only valid if in constant ITR mode */
726 if (adapter->rx_itr_setting <= 1)
727 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
728 else
729 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
730
731 /* if in mixed Tx/Rx queues per vector mode, report only Rx settings */
732 if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
733 return 0;
734
735 /* only valid if in constant ITR mode */
736 if (adapter->tx_itr_setting <= 1)
737 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
738 else
739 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
740
741 return 0;
742 }
743
744 static int ixgbevf_set_coalesce(struct net_device *netdev,
745 struct ethtool_coalesce *ec)
746 {
747 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
748 struct ixgbevf_q_vector *q_vector;
749 int num_vectors, i;
750 u16 tx_itr_param, rx_itr_param;
751
752 /* don't accept Tx specific changes if we've got mixed RxTx vectors */
753 if (adapter->q_vector[0]->tx.count &&
754 adapter->q_vector[0]->rx.count && ec->tx_coalesce_usecs)
755 return -EINVAL;
756
757 if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
758 (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
759 return -EINVAL;
760
761 if (ec->rx_coalesce_usecs > 1)
762 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
763 else
764 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
765
766 if (adapter->rx_itr_setting == 1)
767 rx_itr_param = IXGBE_20K_ITR;
768 else
769 rx_itr_param = adapter->rx_itr_setting;
770
771 if (ec->tx_coalesce_usecs > 1)
772 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
773 else
774 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
775
776 if (adapter->tx_itr_setting == 1)
777 tx_itr_param = IXGBE_12K_ITR;
778 else
779 tx_itr_param = adapter->tx_itr_setting;
780
781 num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
782
783 for (i = 0; i < num_vectors; i++) {
784 q_vector = adapter->q_vector[i];
785 if (q_vector->tx.count && !q_vector->rx.count)
786 /* Tx only */
787 q_vector->itr = tx_itr_param;
788 else
789 /* Rx only or mixed */
790 q_vector->itr = rx_itr_param;
791 ixgbevf_write_eitr(q_vector);
792 }
793
794 return 0;
795 }
796
797 static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
798 u32 *rules __always_unused)
799 {
800 struct ixgbevf_adapter *adapter = netdev_priv(dev);
801
802 switch (info->cmd) {
803 case ETHTOOL_GRXRINGS:
804 info->data = adapter->num_rx_queues;
805 return 0;
806 default:
807 hw_dbg(&adapter->hw, "Command parameters not supported\n");
808 return -EOPNOTSUPP;
809 }
810 }
811
812 static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev)
813 {
814 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
815
816 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf)
817 return IXGBEVF_X550_VFRETA_SIZE;
818
819 return IXGBEVF_82599_RETA_SIZE;
820 }
821
822 static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev)
823 {
824 return IXGBEVF_RSS_HASH_KEY_SIZE;
825 }
826
827 static int ixgbevf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
828 u8 *hfunc)
829 {
830 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
831 int err = 0;
832
833 if (hfunc)
834 *hfunc = ETH_RSS_HASH_TOP;
835
836 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) {
837 if (key)
838 memcpy(key, adapter->rss_key, sizeof(adapter->rss_key));
839
840 if (indir) {
841 int i;
842
843 for (i = 0; i < IXGBEVF_X550_VFRETA_SIZE; i++)
844 indir[i] = adapter->rss_indir_tbl[i];
845 }
846 } else {
847 /* If neither indirection table nor hash key was requested
848 * - just return a success avoiding taking any locks.
849 */
850 if (!indir && !key)
851 return 0;
852
853 spin_lock_bh(&adapter->mbx_lock);
854 if (indir)
855 err = ixgbevf_get_reta_locked(&adapter->hw, indir,
856 adapter->num_rx_queues);
857
858 if (!err && key)
859 err = ixgbevf_get_rss_key_locked(&adapter->hw, key);
860
861 spin_unlock_bh(&adapter->mbx_lock);
862 }
863
864 return err;
865 }
866
867 static const struct ethtool_ops ixgbevf_ethtool_ops = {
868 .get_settings = ixgbevf_get_settings,
869 .get_drvinfo = ixgbevf_get_drvinfo,
870 .get_regs_len = ixgbevf_get_regs_len,
871 .get_regs = ixgbevf_get_regs,
872 .nway_reset = ixgbevf_nway_reset,
873 .get_link = ethtool_op_get_link,
874 .get_ringparam = ixgbevf_get_ringparam,
875 .set_ringparam = ixgbevf_set_ringparam,
876 .get_msglevel = ixgbevf_get_msglevel,
877 .set_msglevel = ixgbevf_set_msglevel,
878 .self_test = ixgbevf_diag_test,
879 .get_sset_count = ixgbevf_get_sset_count,
880 .get_strings = ixgbevf_get_strings,
881 .get_ethtool_stats = ixgbevf_get_ethtool_stats,
882 .get_coalesce = ixgbevf_get_coalesce,
883 .set_coalesce = ixgbevf_set_coalesce,
884 .get_rxnfc = ixgbevf_get_rxnfc,
885 .get_rxfh_indir_size = ixgbevf_get_rxfh_indir_size,
886 .get_rxfh_key_size = ixgbevf_get_rxfh_key_size,
887 .get_rxfh = ixgbevf_get_rxfh,
888 };
889
890 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
891 {
892 netdev->ethtool_ops = &ixgbevf_ethtool_ops;
893 }
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