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Merge tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[deliverable/linux.git] / drivers / net / ethernet / intel / ixgbevf / ethtool.c
1 /*******************************************************************************
2
3 Intel 82599 Virtual Function driver
4 Copyright(c) 1999 - 2014 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, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25
26 *******************************************************************************/
27
28 /* ethtool support for ixgbevf */
29
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
32 #include <linux/types.h>
33 #include <linux/module.h>
34 #include <linux/slab.h>
35 #include <linux/pci.h>
36 #include <linux/netdevice.h>
37 #include <linux/ethtool.h>
38 #include <linux/vmalloc.h>
39 #include <linux/if_vlan.h>
40 #include <linux/uaccess.h>
41
42 #include "ixgbevf.h"
43
44 #define IXGBE_ALL_RAR_ENTRIES 16
45
46 struct ixgbe_stats {
47 char stat_string[ETH_GSTRING_LEN];
48 struct {
49 int sizeof_stat;
50 int stat_offset;
51 int base_stat_offset;
52 int saved_reset_offset;
53 };
54 };
55
56 #define IXGBEVF_STAT(m, b, r) { \
57 .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
58 .stat_offset = offsetof(struct ixgbevf_adapter, m), \
59 .base_stat_offset = offsetof(struct ixgbevf_adapter, b), \
60 .saved_reset_offset = offsetof(struct ixgbevf_adapter, r) \
61 }
62
63 #define IXGBEVF_ZSTAT(m) { \
64 .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
65 .stat_offset = offsetof(struct ixgbevf_adapter, m), \
66 .base_stat_offset = -1, \
67 .saved_reset_offset = -1 \
68 }
69
70 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
71 {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
72 stats.saved_reset_vfgprc)},
73 {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
74 stats.saved_reset_vfgptc)},
75 {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
76 stats.saved_reset_vfgorc)},
77 {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
78 stats.saved_reset_vfgotc)},
79 {"tx_busy", IXGBEVF_ZSTAT(tx_busy)},
80 {"tx_restart_queue", IXGBEVF_ZSTAT(restart_queue)},
81 {"tx_timeout_count", IXGBEVF_ZSTAT(tx_timeout_count)},
82 {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
83 stats.saved_reset_vfmprc)},
84 {"rx_csum_offload_errors", IXGBEVF_ZSTAT(hw_csum_rx_error)},
85 #ifdef BP_EXTENDED_STATS
86 {"rx_bp_poll_yield", IXGBEVF_ZSTAT(bp_rx_yields)},
87 {"rx_bp_cleaned", IXGBEVF_ZSTAT(bp_rx_cleaned)},
88 {"rx_bp_misses", IXGBEVF_ZSTAT(bp_rx_missed)},
89 {"tx_bp_napi_yield", IXGBEVF_ZSTAT(bp_tx_yields)},
90 {"tx_bp_cleaned", IXGBEVF_ZSTAT(bp_tx_cleaned)},
91 {"tx_bp_misses", IXGBEVF_ZSTAT(bp_tx_missed)},
92 #endif
93 };
94
95 #define IXGBE_QUEUE_STATS_LEN 0
96 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
97
98 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
99 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
100 "Register test (offline)",
101 "Link test (on/offline)"
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 switch (link_speed) {
124 case IXGBE_LINK_SPEED_10GB_FULL:
125 speed = SPEED_10000;
126 break;
127 case IXGBE_LINK_SPEED_1GB_FULL:
128 speed = SPEED_1000;
129 break;
130 case IXGBE_LINK_SPEED_100_FULL:
131 speed = SPEED_100;
132 break;
133 }
134
135 ethtool_cmd_speed_set(ecmd, speed);
136 ecmd->duplex = DUPLEX_FULL;
137 } else {
138 ethtool_cmd_speed_set(ecmd, -1);
139 ecmd->duplex = -1;
140 }
141
142 return 0;
143 }
144
145 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
146 {
147 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
148 return adapter->msg_enable;
149 }
150
151 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
152 {
153 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
154 adapter->msg_enable = data;
155 }
156
157 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
158
159 static int ixgbevf_get_regs_len(struct net_device *netdev)
160 {
161 #define IXGBE_REGS_LEN 45
162 return IXGBE_REGS_LEN * sizeof(u32);
163 }
164
165 static void ixgbevf_get_regs(struct net_device *netdev,
166 struct ethtool_regs *regs,
167 void *p)
168 {
169 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
170 struct ixgbe_hw *hw = &adapter->hw;
171 u32 *regs_buff = p;
172 u32 regs_len = ixgbevf_get_regs_len(netdev);
173 u8 i;
174
175 memset(p, 0, regs_len);
176
177 regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
178
179 /* General Registers */
180 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
181 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
182 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
183 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
184 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
185
186 /* Interrupt */
187 /* don't read EICR because it can clear interrupt causes, instead
188 * read EICS which is a shadow but doesn't clear EICR */
189 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
190 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
191 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
192 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
193 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
194 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
195 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
196 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
197 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
198
199 /* Receive DMA */
200 for (i = 0; i < 2; i++)
201 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
202 for (i = 0; i < 2; i++)
203 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
204 for (i = 0; i < 2; i++)
205 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
206 for (i = 0; i < 2; i++)
207 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
208 for (i = 0; i < 2; i++)
209 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
210 for (i = 0; i < 2; i++)
211 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
212 for (i = 0; i < 2; i++)
213 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
214
215 /* Receive */
216 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
217
218 /* Transmit */
219 for (i = 0; i < 2; i++)
220 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
221 for (i = 0; i < 2; i++)
222 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
223 for (i = 0; i < 2; i++)
224 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
225 for (i = 0; i < 2; i++)
226 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
227 for (i = 0; i < 2; i++)
228 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
229 for (i = 0; i < 2; i++)
230 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
231 for (i = 0; i < 2; i++)
232 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
233 for (i = 0; i < 2; i++)
234 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
235 }
236
237 static void ixgbevf_get_drvinfo(struct net_device *netdev,
238 struct ethtool_drvinfo *drvinfo)
239 {
240 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
241
242 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
243 strlcpy(drvinfo->version, ixgbevf_driver_version,
244 sizeof(drvinfo->version));
245 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
246 sizeof(drvinfo->bus_info));
247 }
248
249 static void ixgbevf_get_ringparam(struct net_device *netdev,
250 struct ethtool_ringparam *ring)
251 {
252 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
253
254 ring->rx_max_pending = IXGBEVF_MAX_RXD;
255 ring->tx_max_pending = IXGBEVF_MAX_TXD;
256 ring->rx_pending = adapter->rx_ring_count;
257 ring->tx_pending = adapter->tx_ring_count;
258 }
259
260 static int ixgbevf_set_ringparam(struct net_device *netdev,
261 struct ethtool_ringparam *ring)
262 {
263 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
264 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
265 u32 new_rx_count, new_tx_count;
266 int i, err = 0;
267
268 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
269 return -EINVAL;
270
271 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD);
272 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD);
273 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
274
275 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD);
276 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD);
277 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
278
279 /* if nothing to do return success */
280 if ((new_tx_count == adapter->tx_ring_count) &&
281 (new_rx_count == adapter->rx_ring_count))
282 return 0;
283
284 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
285 usleep_range(1000, 2000);
286
287 if (!netif_running(adapter->netdev)) {
288 for (i = 0; i < adapter->num_tx_queues; i++)
289 adapter->tx_ring[i]->count = new_tx_count;
290 for (i = 0; i < adapter->num_rx_queues; i++)
291 adapter->rx_ring[i]->count = new_rx_count;
292 adapter->tx_ring_count = new_tx_count;
293 adapter->rx_ring_count = new_rx_count;
294 goto clear_reset;
295 }
296
297 if (new_tx_count != adapter->tx_ring_count) {
298 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring));
299 if (!tx_ring) {
300 err = -ENOMEM;
301 goto clear_reset;
302 }
303
304 for (i = 0; i < adapter->num_tx_queues; i++) {
305 /* clone ring and setup updated count */
306 tx_ring[i] = *adapter->tx_ring[i];
307 tx_ring[i].count = new_tx_count;
308 err = ixgbevf_setup_tx_resources(&tx_ring[i]);
309 if (err) {
310 while (i) {
311 i--;
312 ixgbevf_free_tx_resources(&tx_ring[i]);
313 }
314
315 vfree(tx_ring);
316 tx_ring = NULL;
317
318 goto clear_reset;
319 }
320 }
321 }
322
323 if (new_rx_count != adapter->rx_ring_count) {
324 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring));
325 if (!rx_ring) {
326 err = -ENOMEM;
327 goto clear_reset;
328 }
329
330 for (i = 0; i < adapter->num_rx_queues; i++) {
331 /* clone ring and setup updated count */
332 rx_ring[i] = *adapter->rx_ring[i];
333 rx_ring[i].count = new_rx_count;
334 err = ixgbevf_setup_rx_resources(&rx_ring[i]);
335 if (err) {
336 while (i) {
337 i--;
338 ixgbevf_free_rx_resources(&rx_ring[i]);
339 }
340
341 vfree(rx_ring);
342 rx_ring = NULL;
343
344 goto clear_reset;
345 }
346 }
347 }
348
349 /* bring interface down to prepare for update */
350 ixgbevf_down(adapter);
351
352 /* Tx */
353 if (tx_ring) {
354 for (i = 0; i < adapter->num_tx_queues; i++) {
355 ixgbevf_free_tx_resources(adapter->tx_ring[i]);
356 *adapter->tx_ring[i] = tx_ring[i];
357 }
358 adapter->tx_ring_count = new_tx_count;
359
360 vfree(tx_ring);
361 tx_ring = NULL;
362 }
363
364 /* Rx */
365 if (rx_ring) {
366 for (i = 0; i < adapter->num_rx_queues; i++) {
367 ixgbevf_free_rx_resources(adapter->rx_ring[i]);
368 *adapter->rx_ring[i] = rx_ring[i];
369 }
370 adapter->rx_ring_count = new_rx_count;
371
372 vfree(rx_ring);
373 rx_ring = NULL;
374 }
375
376 /* restore interface using new values */
377 ixgbevf_up(adapter);
378
379 clear_reset:
380 /* free Tx resources if Rx error is encountered */
381 if (tx_ring) {
382 for (i = 0; i < adapter->num_tx_queues; i++)
383 ixgbevf_free_tx_resources(&tx_ring[i]);
384 vfree(tx_ring);
385 }
386
387 clear_bit(__IXGBEVF_RESETTING, &adapter->state);
388 return err;
389 }
390
391 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
392 {
393 switch (stringset) {
394 case ETH_SS_TEST:
395 return IXGBE_TEST_LEN;
396 case ETH_SS_STATS:
397 return IXGBE_GLOBAL_STATS_LEN;
398 default:
399 return -EINVAL;
400 }
401 }
402
403 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
404 struct ethtool_stats *stats, u64 *data)
405 {
406 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
407 char *base = (char *) adapter;
408 int i;
409 #ifdef BP_EXTENDED_STATS
410 u64 rx_yields = 0, rx_cleaned = 0, rx_missed = 0,
411 tx_yields = 0, tx_cleaned = 0, tx_missed = 0;
412
413 for (i = 0; i < adapter->num_rx_queues; i++) {
414 rx_yields += adapter->rx_ring[i]->stats.yields;
415 rx_cleaned += adapter->rx_ring[i]->stats.cleaned;
416 rx_yields += adapter->rx_ring[i]->stats.yields;
417 }
418
419 for (i = 0; i < adapter->num_tx_queues; i++) {
420 tx_yields += adapter->tx_ring[i]->stats.yields;
421 tx_cleaned += adapter->tx_ring[i]->stats.cleaned;
422 tx_yields += adapter->tx_ring[i]->stats.yields;
423 }
424
425 adapter->bp_rx_yields = rx_yields;
426 adapter->bp_rx_cleaned = rx_cleaned;
427 adapter->bp_rx_missed = rx_missed;
428
429 adapter->bp_tx_yields = tx_yields;
430 adapter->bp_tx_cleaned = tx_cleaned;
431 adapter->bp_tx_missed = tx_missed;
432 #endif
433
434 ixgbevf_update_stats(adapter);
435 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
436 char *p = base + ixgbe_gstrings_stats[i].stat_offset;
437 char *b = base + ixgbe_gstrings_stats[i].base_stat_offset;
438 char *r = base + ixgbe_gstrings_stats[i].saved_reset_offset;
439
440 if (ixgbe_gstrings_stats[i].sizeof_stat == sizeof(u64)) {
441 if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
442 data[i] = *(u64 *)p - *(u64 *)b + *(u64 *)r;
443 else
444 data[i] = *(u64 *)p;
445 } else {
446 if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
447 data[i] = *(u32 *)p - *(u32 *)b + *(u32 *)r;
448 else
449 data[i] = *(u32 *)p;
450 }
451 }
452 }
453
454 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
455 u8 *data)
456 {
457 char *p = (char *)data;
458 int i;
459
460 switch (stringset) {
461 case ETH_SS_TEST:
462 memcpy(data, *ixgbe_gstrings_test,
463 IXGBE_TEST_LEN * ETH_GSTRING_LEN);
464 break;
465 case ETH_SS_STATS:
466 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
467 memcpy(p, ixgbe_gstrings_stats[i].stat_string,
468 ETH_GSTRING_LEN);
469 p += ETH_GSTRING_LEN;
470 }
471 break;
472 }
473 }
474
475 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
476 {
477 struct ixgbe_hw *hw = &adapter->hw;
478 bool link_up;
479 u32 link_speed = 0;
480 *data = 0;
481
482 hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
483 if (!link_up)
484 *data = 1;
485
486 return *data;
487 }
488
489 /* ethtool register test data */
490 struct ixgbevf_reg_test {
491 u16 reg;
492 u8 array_len;
493 u8 test_type;
494 u32 mask;
495 u32 write;
496 };
497
498 /* In the hardware, registers are laid out either singly, in arrays
499 * spaced 0x40 bytes apart, or in contiguous tables. We assume
500 * most tests take place on arrays or single registers (handled
501 * as a single-element array) and special-case the tables.
502 * Table tests are always pattern tests.
503 *
504 * We also make provision for some required setup steps by specifying
505 * registers to be written without any read-back testing.
506 */
507
508 #define PATTERN_TEST 1
509 #define SET_READ_TEST 2
510 #define WRITE_NO_TEST 3
511 #define TABLE32_TEST 4
512 #define TABLE64_TEST_LO 5
513 #define TABLE64_TEST_HI 6
514
515 /* default VF register test */
516 static const struct ixgbevf_reg_test reg_test_vf[] = {
517 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
518 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
519 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
520 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
521 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
522 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
523 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
524 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
525 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
526 { 0, 0, 0, 0 }
527 };
528
529 static const u32 register_test_patterns[] = {
530 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
531 };
532
533 static bool reg_pattern_test(struct ixgbevf_adapter *adapter, u64 *data,
534 int reg, u32 mask, u32 write)
535 {
536 u32 pat, val, before;
537
538 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
539 *data = 1;
540 return true;
541 }
542 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {
543 before = ixgbevf_read_reg(&adapter->hw, reg);
544 ixgbe_write_reg(&adapter->hw, reg,
545 register_test_patterns[pat] & write);
546 val = ixgbevf_read_reg(&adapter->hw, reg);
547 if (val != (register_test_patterns[pat] & write & mask)) {
548 hw_dbg(&adapter->hw,
549 "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
550 reg, val,
551 register_test_patterns[pat] & write & mask);
552 *data = reg;
553 ixgbe_write_reg(&adapter->hw, reg, before);
554 return true;
555 }
556 ixgbe_write_reg(&adapter->hw, reg, before);
557 }
558 return false;
559 }
560
561 static bool reg_set_and_check(struct ixgbevf_adapter *adapter, u64 *data,
562 int reg, u32 mask, u32 write)
563 {
564 u32 val, before;
565
566 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
567 *data = 1;
568 return true;
569 }
570 before = ixgbevf_read_reg(&adapter->hw, reg);
571 ixgbe_write_reg(&adapter->hw, reg, write & mask);
572 val = ixgbevf_read_reg(&adapter->hw, reg);
573 if ((write & mask) != (val & mask)) {
574 pr_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
575 reg, (val & mask), write & mask);
576 *data = reg;
577 ixgbe_write_reg(&adapter->hw, reg, before);
578 return true;
579 }
580 ixgbe_write_reg(&adapter->hw, reg, before);
581 return false;
582 }
583
584 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
585 {
586 const struct ixgbevf_reg_test *test;
587 u32 i;
588
589 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
590 dev_err(&adapter->pdev->dev,
591 "Adapter removed - register test blocked\n");
592 *data = 1;
593 return 1;
594 }
595 test = reg_test_vf;
596
597 /*
598 * Perform the register test, looping through the test table
599 * until we either fail or reach the null entry.
600 */
601 while (test->reg) {
602 for (i = 0; i < test->array_len; i++) {
603 bool b = false;
604
605 switch (test->test_type) {
606 case PATTERN_TEST:
607 b = reg_pattern_test(adapter, data,
608 test->reg + (i * 0x40),
609 test->mask,
610 test->write);
611 break;
612 case SET_READ_TEST:
613 b = reg_set_and_check(adapter, data,
614 test->reg + (i * 0x40),
615 test->mask,
616 test->write);
617 break;
618 case WRITE_NO_TEST:
619 ixgbe_write_reg(&adapter->hw,
620 test->reg + (i * 0x40),
621 test->write);
622 break;
623 case TABLE32_TEST:
624 b = reg_pattern_test(adapter, data,
625 test->reg + (i * 4),
626 test->mask,
627 test->write);
628 break;
629 case TABLE64_TEST_LO:
630 b = reg_pattern_test(adapter, data,
631 test->reg + (i * 8),
632 test->mask,
633 test->write);
634 break;
635 case TABLE64_TEST_HI:
636 b = reg_pattern_test(adapter, data,
637 test->reg + 4 + (i * 8),
638 test->mask,
639 test->write);
640 break;
641 }
642 if (b)
643 return 1;
644 }
645 test++;
646 }
647
648 *data = 0;
649 return *data;
650 }
651
652 static void ixgbevf_diag_test(struct net_device *netdev,
653 struct ethtool_test *eth_test, u64 *data)
654 {
655 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
656 bool if_running = netif_running(netdev);
657
658 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
659 dev_err(&adapter->pdev->dev,
660 "Adapter removed - test blocked\n");
661 data[0] = 1;
662 data[1] = 1;
663 eth_test->flags |= ETH_TEST_FL_FAILED;
664 return;
665 }
666 set_bit(__IXGBEVF_TESTING, &adapter->state);
667 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
668 /* Offline tests */
669
670 hw_dbg(&adapter->hw, "offline testing starting\n");
671
672 /* Link test performed before hardware reset so autoneg doesn't
673 * interfere with test result */
674 if (ixgbevf_link_test(adapter, &data[1]))
675 eth_test->flags |= ETH_TEST_FL_FAILED;
676
677 if (if_running)
678 /* indicate we're in test mode */
679 dev_close(netdev);
680 else
681 ixgbevf_reset(adapter);
682
683 hw_dbg(&adapter->hw, "register testing starting\n");
684 if (ixgbevf_reg_test(adapter, &data[0]))
685 eth_test->flags |= ETH_TEST_FL_FAILED;
686
687 ixgbevf_reset(adapter);
688
689 clear_bit(__IXGBEVF_TESTING, &adapter->state);
690 if (if_running)
691 dev_open(netdev);
692 } else {
693 hw_dbg(&adapter->hw, "online testing starting\n");
694 /* Online tests */
695 if (ixgbevf_link_test(adapter, &data[1]))
696 eth_test->flags |= ETH_TEST_FL_FAILED;
697
698 /* Online tests aren't run; pass by default */
699 data[0] = 0;
700
701 clear_bit(__IXGBEVF_TESTING, &adapter->state);
702 }
703 msleep_interruptible(4 * 1000);
704 }
705
706 static int ixgbevf_nway_reset(struct net_device *netdev)
707 {
708 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
709
710 if (netif_running(netdev))
711 ixgbevf_reinit_locked(adapter);
712
713 return 0;
714 }
715
716 static int ixgbevf_get_coalesce(struct net_device *netdev,
717 struct ethtool_coalesce *ec)
718 {
719 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
720
721 /* only valid if in constant ITR mode */
722 if (adapter->rx_itr_setting <= 1)
723 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
724 else
725 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
726
727 /* if in mixed tx/rx queues per vector mode, report only rx settings */
728 if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
729 return 0;
730
731 /* only valid if in constant ITR mode */
732 if (adapter->tx_itr_setting <= 1)
733 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
734 else
735 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
736
737 return 0;
738 }
739
740 static int ixgbevf_set_coalesce(struct net_device *netdev,
741 struct ethtool_coalesce *ec)
742 {
743 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
744 struct ixgbevf_q_vector *q_vector;
745 int num_vectors, i;
746 u16 tx_itr_param, rx_itr_param;
747
748 /* don't accept tx specific changes if we've got mixed RxTx vectors */
749 if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count
750 && ec->tx_coalesce_usecs)
751 return -EINVAL;
752
753
754 if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
755 (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
756 return -EINVAL;
757
758 if (ec->rx_coalesce_usecs > 1)
759 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
760 else
761 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
762
763 if (adapter->rx_itr_setting == 1)
764 rx_itr_param = IXGBE_20K_ITR;
765 else
766 rx_itr_param = adapter->rx_itr_setting;
767
768
769 if (ec->tx_coalesce_usecs > 1)
770 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
771 else
772 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
773
774 if (adapter->tx_itr_setting == 1)
775 tx_itr_param = IXGBE_10K_ITR;
776 else
777 tx_itr_param = adapter->tx_itr_setting;
778
779 num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
780
781 for (i = 0; i < num_vectors; i++) {
782 q_vector = adapter->q_vector[i];
783 if (q_vector->tx.count && !q_vector->rx.count)
784 /* tx only */
785 q_vector->itr = tx_itr_param;
786 else
787 /* rx only or mixed */
788 q_vector->itr = rx_itr_param;
789 ixgbevf_write_eitr(q_vector);
790 }
791
792 return 0;
793 }
794
795 static const struct ethtool_ops ixgbevf_ethtool_ops = {
796 .get_settings = ixgbevf_get_settings,
797 .get_drvinfo = ixgbevf_get_drvinfo,
798 .get_regs_len = ixgbevf_get_regs_len,
799 .get_regs = ixgbevf_get_regs,
800 .nway_reset = ixgbevf_nway_reset,
801 .get_link = ethtool_op_get_link,
802 .get_ringparam = ixgbevf_get_ringparam,
803 .set_ringparam = ixgbevf_set_ringparam,
804 .get_msglevel = ixgbevf_get_msglevel,
805 .set_msglevel = ixgbevf_set_msglevel,
806 .self_test = ixgbevf_diag_test,
807 .get_sset_count = ixgbevf_get_sset_count,
808 .get_strings = ixgbevf_get_strings,
809 .get_ethtool_stats = ixgbevf_get_ethtool_stats,
810 .get_coalesce = ixgbevf_get_coalesce,
811 .set_coalesce = ixgbevf_set_coalesce,
812 };
813
814 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
815 {
816 SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
817 }
Linux kernel - Deliverables
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