Loading...
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
45enum {NETDEV_STATS, IXGBEVF_STATS};
46
47struct ixgbe_stats {
48 char stat_string[ETH_GSTRING_LEN];
49 int type;
50 int sizeof_stat;
51 int stat_offset;
52};
53
54#define IXGBEVF_STAT(_name, _stat) { \
55 .stat_string = _name, \
56 .type = IXGBEVF_STATS, \
57 .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, _stat), \
58 .stat_offset = offsetof(struct ixgbevf_adapter, _stat) \
59}
60
61#define IXGBEVF_NETDEV_STAT(_net_stat) { \
62 .stat_string = #_net_stat, \
63 .type = NETDEV_STATS, \
64 .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
65 .stat_offset = offsetof(struct net_device_stats, _net_stat) \
66}
67
68static struct ixgbe_stats ixgbevf_gstrings_stats[] = {
69 IXGBEVF_NETDEV_STAT(rx_packets),
70 IXGBEVF_NETDEV_STAT(tx_packets),
71 IXGBEVF_NETDEV_STAT(rx_bytes),
72 IXGBEVF_NETDEV_STAT(tx_bytes),
73 IXGBEVF_STAT("tx_busy", tx_busy),
74 IXGBEVF_STAT("tx_restart_queue", restart_queue),
75 IXGBEVF_STAT("tx_timeout_count", tx_timeout_count),
76 IXGBEVF_NETDEV_STAT(multicast),
77 IXGBEVF_STAT("rx_csum_offload_errors", hw_csum_rx_error),
78};
79
80#define IXGBEVF_QUEUE_STATS_LEN ( \
81 (((struct ixgbevf_adapter *)netdev_priv(netdev))->num_tx_queues + \
82 ((struct ixgbevf_adapter *)netdev_priv(netdev))->num_rx_queues) * \
83 (sizeof(struct ixgbe_stats) / sizeof(u64)))
84#define IXGBEVF_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbevf_gstrings_stats)
85
86#define IXGBEVF_STATS_LEN (IXGBEVF_GLOBAL_STATS_LEN + IXGBEVF_QUEUE_STATS_LEN)
87static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
88 "Register test (offline)",
89 "Link test (on/offline)"
90};
91
92#define IXGBEVF_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
93
94static int ixgbevf_get_settings(struct net_device *netdev,
95 struct ethtool_cmd *ecmd)
96{
97 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
98 struct ixgbe_hw *hw = &adapter->hw;
99 u32 link_speed = 0;
100 bool link_up;
101
102 ecmd->supported = SUPPORTED_10000baseT_Full;
103 ecmd->autoneg = AUTONEG_DISABLE;
104 ecmd->transceiver = XCVR_DUMMY1;
105 ecmd->port = -1;
106
107 hw->mac.get_link_status = 1;
108 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
109
110 if (link_up) {
111 __u32 speed = SPEED_10000;
112
113 switch (link_speed) {
114 case IXGBE_LINK_SPEED_10GB_FULL:
115 speed = SPEED_10000;
116 break;
117 case IXGBE_LINK_SPEED_1GB_FULL:
118 speed = SPEED_1000;
119 break;
120 case IXGBE_LINK_SPEED_100_FULL:
121 speed = SPEED_100;
122 break;
123 }
124
125 ethtool_cmd_speed_set(ecmd, speed);
126 ecmd->duplex = DUPLEX_FULL;
127 } else {
128 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
129 ecmd->duplex = DUPLEX_UNKNOWN;
130 }
131
132 return 0;
133}
134
135static u32 ixgbevf_get_msglevel(struct net_device *netdev)
136{
137 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
138
139 return adapter->msg_enable;
140}
141
142static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
143{
144 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
145
146 adapter->msg_enable = data;
147}
148
149#define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
150
151static int ixgbevf_get_regs_len(struct net_device *netdev)
152{
153#define IXGBE_REGS_LEN 45
154 return IXGBE_REGS_LEN * sizeof(u32);
155}
156
157static void ixgbevf_get_regs(struct net_device *netdev,
158 struct ethtool_regs *regs,
159 void *p)
160{
161 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
162 struct ixgbe_hw *hw = &adapter->hw;
163 u32 *regs_buff = p;
164 u32 regs_len = ixgbevf_get_regs_len(netdev);
165 u8 i;
166
167 memset(p, 0, regs_len);
168
169 /* generate a number suitable for ethtool's register version */
170 regs->version = (1u << 24) | (hw->revision_id << 16) | hw->device_id;
171
172 /* General Registers */
173 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
174 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
175 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
176 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
177 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
178
179 /* Interrupt */
180 /* don't read EICR because it can clear interrupt causes, instead
181 * read EICS which is a shadow but doesn't clear EICR
182 */
183 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
184 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
185 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
186 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
187 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
188 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
189 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
190 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
191 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
192
193 /* Receive DMA */
194 for (i = 0; i < 2; i++)
195 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
196 for (i = 0; i < 2; i++)
197 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
198 for (i = 0; i < 2; i++)
199 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
200 for (i = 0; i < 2; i++)
201 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
202 for (i = 0; i < 2; i++)
203 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
204 for (i = 0; i < 2; i++)
205 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
206 for (i = 0; i < 2; i++)
207 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
208
209 /* Receive */
210 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
211
212 /* Transmit */
213 for (i = 0; i < 2; i++)
214 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
215 for (i = 0; i < 2; i++)
216 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
217 for (i = 0; i < 2; i++)
218 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
219 for (i = 0; i < 2; i++)
220 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
221 for (i = 0; i < 2; i++)
222 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
223 for (i = 0; i < 2; i++)
224 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
225 for (i = 0; i < 2; i++)
226 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
227 for (i = 0; i < 2; i++)
228 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
229}
230
231static void ixgbevf_get_drvinfo(struct net_device *netdev,
232 struct ethtool_drvinfo *drvinfo)
233{
234 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
235
236 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
237 strlcpy(drvinfo->version, ixgbevf_driver_version,
238 sizeof(drvinfo->version));
239 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
240 sizeof(drvinfo->bus_info));
241}
242
243static void ixgbevf_get_ringparam(struct net_device *netdev,
244 struct ethtool_ringparam *ring)
245{
246 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
247
248 ring->rx_max_pending = IXGBEVF_MAX_RXD;
249 ring->tx_max_pending = IXGBEVF_MAX_TXD;
250 ring->rx_pending = adapter->rx_ring_count;
251 ring->tx_pending = adapter->tx_ring_count;
252}
253
254static int ixgbevf_set_ringparam(struct net_device *netdev,
255 struct ethtool_ringparam *ring)
256{
257 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
258 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
259 u32 new_rx_count, new_tx_count;
260 int i, err = 0;
261
262 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
263 return -EINVAL;
264
265 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD);
266 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD);
267 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
268
269 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD);
270 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD);
271 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
272
273 /* if nothing to do return success */
274 if ((new_tx_count == adapter->tx_ring_count) &&
275 (new_rx_count == adapter->rx_ring_count))
276 return 0;
277
278 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
279 usleep_range(1000, 2000);
280
281 if (!netif_running(adapter->netdev)) {
282 for (i = 0; i < adapter->num_tx_queues; i++)
283 adapter->tx_ring[i]->count = new_tx_count;
284 for (i = 0; i < adapter->num_rx_queues; i++)
285 adapter->rx_ring[i]->count = new_rx_count;
286 adapter->tx_ring_count = new_tx_count;
287 adapter->rx_ring_count = new_rx_count;
288 goto clear_reset;
289 }
290
291 if (new_tx_count != adapter->tx_ring_count) {
292 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring));
293 if (!tx_ring) {
294 err = -ENOMEM;
295 goto clear_reset;
296 }
297
298 for (i = 0; i < adapter->num_tx_queues; i++) {
299 /* clone ring and setup updated count */
300 tx_ring[i] = *adapter->tx_ring[i];
301 tx_ring[i].count = new_tx_count;
302 err = ixgbevf_setup_tx_resources(&tx_ring[i]);
303 if (err) {
304 while (i) {
305 i--;
306 ixgbevf_free_tx_resources(&tx_ring[i]);
307 }
308
309 vfree(tx_ring);
310 tx_ring = NULL;
311
312 goto clear_reset;
313 }
314 }
315 }
316
317 if (new_rx_count != adapter->rx_ring_count) {
318 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring));
319 if (!rx_ring) {
320 err = -ENOMEM;
321 goto clear_reset;
322 }
323
324 for (i = 0; i < adapter->num_rx_queues; i++) {
325 /* clone ring and setup updated count */
326 rx_ring[i] = *adapter->rx_ring[i];
327 rx_ring[i].count = new_rx_count;
328 err = ixgbevf_setup_rx_resources(&rx_ring[i]);
329 if (err) {
330 while (i) {
331 i--;
332 ixgbevf_free_rx_resources(&rx_ring[i]);
333 }
334
335 vfree(rx_ring);
336 rx_ring = NULL;
337
338 goto clear_reset;
339 }
340 }
341 }
342
343 /* bring interface down to prepare for update */
344 ixgbevf_down(adapter);
345
346 /* Tx */
347 if (tx_ring) {
348 for (i = 0; i < adapter->num_tx_queues; i++) {
349 ixgbevf_free_tx_resources(adapter->tx_ring[i]);
350 *adapter->tx_ring[i] = tx_ring[i];
351 }
352 adapter->tx_ring_count = new_tx_count;
353
354 vfree(tx_ring);
355 tx_ring = NULL;
356 }
357
358 /* Rx */
359 if (rx_ring) {
360 for (i = 0; i < adapter->num_rx_queues; i++) {
361 ixgbevf_free_rx_resources(adapter->rx_ring[i]);
362 *adapter->rx_ring[i] = rx_ring[i];
363 }
364 adapter->rx_ring_count = new_rx_count;
365
366 vfree(rx_ring);
367 rx_ring = NULL;
368 }
369
370 /* restore interface using new values */
371 ixgbevf_up(adapter);
372
373clear_reset:
374 /* free Tx resources if Rx error is encountered */
375 if (tx_ring) {
376 for (i = 0; i < adapter->num_tx_queues; i++)
377 ixgbevf_free_tx_resources(&tx_ring[i]);
378 vfree(tx_ring);
379 }
380
381 clear_bit(__IXGBEVF_RESETTING, &adapter->state);
382 return err;
383}
384
385static int ixgbevf_get_sset_count(struct net_device *netdev, int stringset)
386{
387 switch (stringset) {
388 case ETH_SS_TEST:
389 return IXGBEVF_TEST_LEN;
390 case ETH_SS_STATS:
391 return IXGBEVF_STATS_LEN;
392 default:
393 return -EINVAL;
394 }
395}
396
397static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
398 struct ethtool_stats *stats, u64 *data)
399{
400 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
401 struct rtnl_link_stats64 temp;
402 const struct rtnl_link_stats64 *net_stats;
403 unsigned int start;
404 struct ixgbevf_ring *ring;
405 int i, j;
406 char *p;
407
408 ixgbevf_update_stats(adapter);
409 net_stats = dev_get_stats(netdev, &temp);
410 for (i = 0; i < IXGBEVF_GLOBAL_STATS_LEN; i++) {
411 switch (ixgbevf_gstrings_stats[i].type) {
412 case NETDEV_STATS:
413 p = (char *)net_stats +
414 ixgbevf_gstrings_stats[i].stat_offset;
415 break;
416 case IXGBEVF_STATS:
417 p = (char *)adapter +
418 ixgbevf_gstrings_stats[i].stat_offset;
419 break;
420 default:
421 data[i] = 0;
422 continue;
423 }
424
425 data[i] = (ixgbevf_gstrings_stats[i].sizeof_stat ==
426 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
427 }
428
429 /* populate Tx queue data */
430 for (j = 0; j < adapter->num_tx_queues; j++) {
431 ring = adapter->tx_ring[j];
432 if (!ring) {
433 data[i++] = 0;
434 data[i++] = 0;
435#ifdef BP_EXTENDED_STATS
436 data[i++] = 0;
437 data[i++] = 0;
438 data[i++] = 0;
439#endif
440 continue;
441 }
442
443 do {
444 start = u64_stats_fetch_begin_irq(&ring->syncp);
445 data[i] = ring->stats.packets;
446 data[i + 1] = ring->stats.bytes;
447 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
448 i += 2;
449#ifdef BP_EXTENDED_STATS
450 data[i] = ring->stats.yields;
451 data[i + 1] = ring->stats.misses;
452 data[i + 2] = ring->stats.cleaned;
453 i += 3;
454#endif
455 }
456
457 /* populate Rx queue data */
458 for (j = 0; j < adapter->num_rx_queues; j++) {
459 ring = adapter->rx_ring[j];
460 if (!ring) {
461 data[i++] = 0;
462 data[i++] = 0;
463#ifdef BP_EXTENDED_STATS
464 data[i++] = 0;
465 data[i++] = 0;
466 data[i++] = 0;
467#endif
468 continue;
469 }
470
471 do {
472 start = u64_stats_fetch_begin_irq(&ring->syncp);
473 data[i] = ring->stats.packets;
474 data[i + 1] = ring->stats.bytes;
475 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
476 i += 2;
477#ifdef BP_EXTENDED_STATS
478 data[i] = ring->stats.yields;
479 data[i + 1] = ring->stats.misses;
480 data[i + 2] = ring->stats.cleaned;
481 i += 3;
482#endif
483 }
484}
485
486static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
487 u8 *data)
488{
489 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
490 char *p = (char *)data;
491 int i;
492
493 switch (stringset) {
494 case ETH_SS_TEST:
495 memcpy(data, *ixgbe_gstrings_test,
496 IXGBEVF_TEST_LEN * ETH_GSTRING_LEN);
497 break;
498 case ETH_SS_STATS:
499 for (i = 0; i < IXGBEVF_GLOBAL_STATS_LEN; i++) {
500 memcpy(p, ixgbevf_gstrings_stats[i].stat_string,
501 ETH_GSTRING_LEN);
502 p += ETH_GSTRING_LEN;
503 }
504
505 for (i = 0; i < adapter->num_tx_queues; i++) {
506 sprintf(p, "tx_queue_%u_packets", i);
507 p += ETH_GSTRING_LEN;
508 sprintf(p, "tx_queue_%u_bytes", i);
509 p += ETH_GSTRING_LEN;
510#ifdef BP_EXTENDED_STATS
511 sprintf(p, "tx_queue_%u_bp_napi_yield", i);
512 p += ETH_GSTRING_LEN;
513 sprintf(p, "tx_queue_%u_bp_misses", i);
514 p += ETH_GSTRING_LEN;
515 sprintf(p, "tx_queue_%u_bp_cleaned", i);
516 p += ETH_GSTRING_LEN;
517#endif /* BP_EXTENDED_STATS */
518 }
519 for (i = 0; i < adapter->num_rx_queues; i++) {
520 sprintf(p, "rx_queue_%u_packets", i);
521 p += ETH_GSTRING_LEN;
522 sprintf(p, "rx_queue_%u_bytes", i);
523 p += ETH_GSTRING_LEN;
524#ifdef BP_EXTENDED_STATS
525 sprintf(p, "rx_queue_%u_bp_poll_yield", i);
526 p += ETH_GSTRING_LEN;
527 sprintf(p, "rx_queue_%u_bp_misses", i);
528 p += ETH_GSTRING_LEN;
529 sprintf(p, "rx_queue_%u_bp_cleaned", i);
530 p += ETH_GSTRING_LEN;
531#endif /* BP_EXTENDED_STATS */
532 }
533 break;
534 }
535}
536
537static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
538{
539 struct ixgbe_hw *hw = &adapter->hw;
540 bool link_up;
541 u32 link_speed = 0;
542 *data = 0;
543
544 hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
545 if (!link_up)
546 *data = 1;
547
548 return *data;
549}
550
551/* ethtool register test data */
552struct ixgbevf_reg_test {
553 u16 reg;
554 u8 array_len;
555 u8 test_type;
556 u32 mask;
557 u32 write;
558};
559
560/* In the hardware, registers are laid out either singly, in arrays
561 * spaced 0x40 bytes apart, or in contiguous tables. We assume
562 * most tests take place on arrays or single registers (handled
563 * as a single-element array) and special-case the tables.
564 * Table tests are always pattern tests.
565 *
566 * We also make provision for some required setup steps by specifying
567 * registers to be written without any read-back testing.
568 */
569
570#define PATTERN_TEST 1
571#define SET_READ_TEST 2
572#define WRITE_NO_TEST 3
573#define TABLE32_TEST 4
574#define TABLE64_TEST_LO 5
575#define TABLE64_TEST_HI 6
576
577/* default VF register test */
578static const struct ixgbevf_reg_test reg_test_vf[] = {
579 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
580 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
581 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
582 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
583 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
584 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
585 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
586 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
587 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
588 { .reg = 0 }
589};
590
591static const u32 register_test_patterns[] = {
592 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
593};
594
595static bool reg_pattern_test(struct ixgbevf_adapter *adapter, u64 *data,
596 int reg, u32 mask, u32 write)
597{
598 u32 pat, val, before;
599
600 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
601 *data = 1;
602 return true;
603 }
604 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {
605 before = ixgbevf_read_reg(&adapter->hw, reg);
606 ixgbe_write_reg(&adapter->hw, reg,
607 register_test_patterns[pat] & write);
608 val = ixgbevf_read_reg(&adapter->hw, reg);
609 if (val != (register_test_patterns[pat] & write & mask)) {
610 hw_dbg(&adapter->hw,
611 "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
612 reg, val,
613 register_test_patterns[pat] & write & mask);
614 *data = reg;
615 ixgbe_write_reg(&adapter->hw, reg, before);
616 return true;
617 }
618 ixgbe_write_reg(&adapter->hw, reg, before);
619 }
620 return false;
621}
622
623static bool reg_set_and_check(struct ixgbevf_adapter *adapter, u64 *data,
624 int reg, u32 mask, u32 write)
625{
626 u32 val, before;
627
628 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
629 *data = 1;
630 return true;
631 }
632 before = ixgbevf_read_reg(&adapter->hw, reg);
633 ixgbe_write_reg(&adapter->hw, reg, write & mask);
634 val = ixgbevf_read_reg(&adapter->hw, reg);
635 if ((write & mask) != (val & mask)) {
636 pr_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
637 reg, (val & mask), write & mask);
638 *data = reg;
639 ixgbe_write_reg(&adapter->hw, reg, before);
640 return true;
641 }
642 ixgbe_write_reg(&adapter->hw, reg, before);
643 return false;
644}
645
646static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
647{
648 const struct ixgbevf_reg_test *test;
649 u32 i;
650
651 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
652 dev_err(&adapter->pdev->dev,
653 "Adapter removed - register test blocked\n");
654 *data = 1;
655 return 1;
656 }
657 test = reg_test_vf;
658
659 /* Perform the register test, looping through the test table
660 * until we either fail or reach the null entry.
661 */
662 while (test->reg) {
663 for (i = 0; i < test->array_len; i++) {
664 bool b = false;
665
666 switch (test->test_type) {
667 case PATTERN_TEST:
668 b = reg_pattern_test(adapter, data,
669 test->reg + (i * 0x40),
670 test->mask,
671 test->write);
672 break;
673 case SET_READ_TEST:
674 b = reg_set_and_check(adapter, data,
675 test->reg + (i * 0x40),
676 test->mask,
677 test->write);
678 break;
679 case WRITE_NO_TEST:
680 ixgbe_write_reg(&adapter->hw,
681 test->reg + (i * 0x40),
682 test->write);
683 break;
684 case TABLE32_TEST:
685 b = reg_pattern_test(adapter, data,
686 test->reg + (i * 4),
687 test->mask,
688 test->write);
689 break;
690 case TABLE64_TEST_LO:
691 b = reg_pattern_test(adapter, data,
692 test->reg + (i * 8),
693 test->mask,
694 test->write);
695 break;
696 case TABLE64_TEST_HI:
697 b = reg_pattern_test(adapter, data,
698 test->reg + 4 + (i * 8),
699 test->mask,
700 test->write);
701 break;
702 }
703 if (b)
704 return 1;
705 }
706 test++;
707 }
708
709 *data = 0;
710 return *data;
711}
712
713static void ixgbevf_diag_test(struct net_device *netdev,
714 struct ethtool_test *eth_test, u64 *data)
715{
716 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
717 bool if_running = netif_running(netdev);
718
719 if (IXGBE_REMOVED(adapter->hw.hw_addr)) {
720 dev_err(&adapter->pdev->dev,
721 "Adapter removed - test blocked\n");
722 data[0] = 1;
723 data[1] = 1;
724 eth_test->flags |= ETH_TEST_FL_FAILED;
725 return;
726 }
727 set_bit(__IXGBEVF_TESTING, &adapter->state);
728 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
729 /* Offline tests */
730
731 hw_dbg(&adapter->hw, "offline testing starting\n");
732
733 /* Link test performed before hardware reset so autoneg doesn't
734 * interfere with test result
735 */
736 if (ixgbevf_link_test(adapter, &data[1]))
737 eth_test->flags |= ETH_TEST_FL_FAILED;
738
739 if (if_running)
740 /* indicate we're in test mode */
741 ixgbevf_close(netdev);
742 else
743 ixgbevf_reset(adapter);
744
745 hw_dbg(&adapter->hw, "register testing starting\n");
746 if (ixgbevf_reg_test(adapter, &data[0]))
747 eth_test->flags |= ETH_TEST_FL_FAILED;
748
749 ixgbevf_reset(adapter);
750
751 clear_bit(__IXGBEVF_TESTING, &adapter->state);
752 if (if_running)
753 ixgbevf_open(netdev);
754 } else {
755 hw_dbg(&adapter->hw, "online testing starting\n");
756 /* Online tests */
757 if (ixgbevf_link_test(adapter, &data[1]))
758 eth_test->flags |= ETH_TEST_FL_FAILED;
759
760 /* Online tests aren't run; pass by default */
761 data[0] = 0;
762
763 clear_bit(__IXGBEVF_TESTING, &adapter->state);
764 }
765 msleep_interruptible(4 * 1000);
766}
767
768static int ixgbevf_nway_reset(struct net_device *netdev)
769{
770 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
771
772 if (netif_running(netdev))
773 ixgbevf_reinit_locked(adapter);
774
775 return 0;
776}
777
778static int ixgbevf_get_coalesce(struct net_device *netdev,
779 struct ethtool_coalesce *ec)
780{
781 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
782
783 /* only valid if in constant ITR mode */
784 if (adapter->rx_itr_setting <= 1)
785 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
786 else
787 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
788
789 /* if in mixed Tx/Rx queues per vector mode, report only Rx settings */
790 if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
791 return 0;
792
793 /* only valid if in constant ITR mode */
794 if (adapter->tx_itr_setting <= 1)
795 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
796 else
797 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
798
799 return 0;
800}
801
802static int ixgbevf_set_coalesce(struct net_device *netdev,
803 struct ethtool_coalesce *ec)
804{
805 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
806 struct ixgbevf_q_vector *q_vector;
807 int num_vectors, i;
808 u16 tx_itr_param, rx_itr_param;
809
810 /* don't accept Tx specific changes if we've got mixed RxTx vectors */
811 if (adapter->q_vector[0]->tx.count &&
812 adapter->q_vector[0]->rx.count && ec->tx_coalesce_usecs)
813 return -EINVAL;
814
815 if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
816 (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
817 return -EINVAL;
818
819 if (ec->rx_coalesce_usecs > 1)
820 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
821 else
822 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
823
824 if (adapter->rx_itr_setting == 1)
825 rx_itr_param = IXGBE_20K_ITR;
826 else
827 rx_itr_param = adapter->rx_itr_setting;
828
829 if (ec->tx_coalesce_usecs > 1)
830 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
831 else
832 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
833
834 if (adapter->tx_itr_setting == 1)
835 tx_itr_param = IXGBE_12K_ITR;
836 else
837 tx_itr_param = adapter->tx_itr_setting;
838
839 num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
840
841 for (i = 0; i < num_vectors; i++) {
842 q_vector = adapter->q_vector[i];
843 if (q_vector->tx.count && !q_vector->rx.count)
844 /* Tx only */
845 q_vector->itr = tx_itr_param;
846 else
847 /* Rx only or mixed */
848 q_vector->itr = rx_itr_param;
849 ixgbevf_write_eitr(q_vector);
850 }
851
852 return 0;
853}
854
855static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
856 u32 *rules __always_unused)
857{
858 struct ixgbevf_adapter *adapter = netdev_priv(dev);
859
860 switch (info->cmd) {
861 case ETHTOOL_GRXRINGS:
862 info->data = adapter->num_rx_queues;
863 return 0;
864 default:
865 hw_dbg(&adapter->hw, "Command parameters not supported\n");
866 return -EOPNOTSUPP;
867 }
868}
869
870static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev)
871{
872 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
873
874 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf)
875 return IXGBEVF_X550_VFRETA_SIZE;
876
877 return IXGBEVF_82599_RETA_SIZE;
878}
879
880static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev)
881{
882 return IXGBEVF_RSS_HASH_KEY_SIZE;
883}
884
885static int ixgbevf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
886 u8 *hfunc)
887{
888 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
889 int err = 0;
890
891 if (hfunc)
892 *hfunc = ETH_RSS_HASH_TOP;
893
894 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) {
895 if (key)
896 memcpy(key, adapter->rss_key, sizeof(adapter->rss_key));
897
898 if (indir) {
899 int i;
900
901 for (i = 0; i < IXGBEVF_X550_VFRETA_SIZE; i++)
902 indir[i] = adapter->rss_indir_tbl[i];
903 }
904 } else {
905 /* If neither indirection table nor hash key was requested
906 * - just return a success avoiding taking any locks.
907 */
908 if (!indir && !key)
909 return 0;
910
911 spin_lock_bh(&adapter->mbx_lock);
912 if (indir)
913 err = ixgbevf_get_reta_locked(&adapter->hw, indir,
914 adapter->num_rx_queues);
915
916 if (!err && key)
917 err = ixgbevf_get_rss_key_locked(&adapter->hw, key);
918
919 spin_unlock_bh(&adapter->mbx_lock);
920 }
921
922 return err;
923}
924
925static const struct ethtool_ops ixgbevf_ethtool_ops = {
926 .get_settings = ixgbevf_get_settings,
927 .get_drvinfo = ixgbevf_get_drvinfo,
928 .get_regs_len = ixgbevf_get_regs_len,
929 .get_regs = ixgbevf_get_regs,
930 .nway_reset = ixgbevf_nway_reset,
931 .get_link = ethtool_op_get_link,
932 .get_ringparam = ixgbevf_get_ringparam,
933 .set_ringparam = ixgbevf_set_ringparam,
934 .get_msglevel = ixgbevf_get_msglevel,
935 .set_msglevel = ixgbevf_set_msglevel,
936 .self_test = ixgbevf_diag_test,
937 .get_sset_count = ixgbevf_get_sset_count,
938 .get_strings = ixgbevf_get_strings,
939 .get_ethtool_stats = ixgbevf_get_ethtool_stats,
940 .get_coalesce = ixgbevf_get_coalesce,
941 .set_coalesce = ixgbevf_set_coalesce,
942 .get_rxnfc = ixgbevf_get_rxnfc,
943 .get_rxfh_indir_size = ixgbevf_get_rxfh_indir_size,
944 .get_rxfh_key_size = ixgbevf_get_rxfh_key_size,
945 .get_rxfh = ixgbevf_get_rxfh,
946};
947
948void ixgbevf_set_ethtool_ops(struct net_device *netdev)
949{
950 netdev->ethtool_ops = &ixgbevf_ethtool_ops;
951}
1/*******************************************************************************
2
3 Intel 82599 Virtual Function driver
4 Copyright(c) 1999 - 2012 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#ifdef ETHTOOL_GSTATS
47struct ixgbe_stats {
48 char stat_string[ETH_GSTRING_LEN];
49 int sizeof_stat;
50 int stat_offset;
51 int base_stat_offset;
52 int saved_reset_offset;
53};
54
55#define IXGBEVF_STAT(m, b, r) sizeof(((struct ixgbevf_adapter *)0)->m), \
56 offsetof(struct ixgbevf_adapter, m), \
57 offsetof(struct ixgbevf_adapter, b), \
58 offsetof(struct ixgbevf_adapter, r)
59
60static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
61 {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
62 stats.saved_reset_vfgprc)},
63 {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
64 stats.saved_reset_vfgptc)},
65 {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
66 stats.saved_reset_vfgorc)},
67 {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
68 stats.saved_reset_vfgotc)},
69 {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
70 {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
71 stats.saved_reset_vfmprc)},
72 {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
73 zero_base)},
74 {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
75 zero_base)},
76 {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
77 zero_base)},
78 {"rx_header_split", IXGBEVF_STAT(rx_hdr_split, zero_base, zero_base)},
79};
80
81#define IXGBE_QUEUE_STATS_LEN 0
82#define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
83
84#define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
85#endif /* ETHTOOL_GSTATS */
86#ifdef ETHTOOL_TEST
87static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
88 "Register test (offline)",
89 "Link test (on/offline)"
90};
91#define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
92#endif /* ETHTOOL_TEST */
93
94static int ixgbevf_get_settings(struct net_device *netdev,
95 struct ethtool_cmd *ecmd)
96{
97 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
98 struct ixgbe_hw *hw = &adapter->hw;
99 u32 link_speed = 0;
100 bool link_up;
101
102 ecmd->supported = SUPPORTED_10000baseT_Full;
103 ecmd->autoneg = AUTONEG_DISABLE;
104 ecmd->transceiver = XCVR_DUMMY1;
105 ecmd->port = -1;
106
107 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
108
109 if (link_up) {
110 __u32 speed = SPEED_10000;
111 switch (link_speed) {
112 case IXGBE_LINK_SPEED_10GB_FULL:
113 speed = SPEED_10000;
114 break;
115 case IXGBE_LINK_SPEED_1GB_FULL:
116 speed = SPEED_1000;
117 break;
118 case IXGBE_LINK_SPEED_100_FULL:
119 speed = SPEED_100;
120 break;
121 }
122
123 ethtool_cmd_speed_set(ecmd, speed);
124 ecmd->duplex = DUPLEX_FULL;
125 } else {
126 ethtool_cmd_speed_set(ecmd, -1);
127 ecmd->duplex = -1;
128 }
129
130 return 0;
131}
132
133static u32 ixgbevf_get_msglevel(struct net_device *netdev)
134{
135 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
136 return adapter->msg_enable;
137}
138
139static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
140{
141 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
142 adapter->msg_enable = data;
143}
144
145#define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
146
147static char *ixgbevf_reg_names[] = {
148 "IXGBE_VFCTRL",
149 "IXGBE_VFSTATUS",
150 "IXGBE_VFLINKS",
151 "IXGBE_VFRXMEMWRAP",
152 "IXGBE_VFFRTIMER",
153 "IXGBE_VTEICR",
154 "IXGBE_VTEICS",
155 "IXGBE_VTEIMS",
156 "IXGBE_VTEIMC",
157 "IXGBE_VTEIAC",
158 "IXGBE_VTEIAM",
159 "IXGBE_VTEITR",
160 "IXGBE_VTIVAR",
161 "IXGBE_VTIVAR_MISC",
162 "IXGBE_VFRDBAL0",
163 "IXGBE_VFRDBAL1",
164 "IXGBE_VFRDBAH0",
165 "IXGBE_VFRDBAH1",
166 "IXGBE_VFRDLEN0",
167 "IXGBE_VFRDLEN1",
168 "IXGBE_VFRDH0",
169 "IXGBE_VFRDH1",
170 "IXGBE_VFRDT0",
171 "IXGBE_VFRDT1",
172 "IXGBE_VFRXDCTL0",
173 "IXGBE_VFRXDCTL1",
174 "IXGBE_VFSRRCTL0",
175 "IXGBE_VFSRRCTL1",
176 "IXGBE_VFPSRTYPE",
177 "IXGBE_VFTDBAL0",
178 "IXGBE_VFTDBAL1",
179 "IXGBE_VFTDBAH0",
180 "IXGBE_VFTDBAH1",
181 "IXGBE_VFTDLEN0",
182 "IXGBE_VFTDLEN1",
183 "IXGBE_VFTDH0",
184 "IXGBE_VFTDH1",
185 "IXGBE_VFTDT0",
186 "IXGBE_VFTDT1",
187 "IXGBE_VFTXDCTL0",
188 "IXGBE_VFTXDCTL1",
189 "IXGBE_VFTDWBAL0",
190 "IXGBE_VFTDWBAL1",
191 "IXGBE_VFTDWBAH0",
192 "IXGBE_VFTDWBAH1"
193};
194
195
196static int ixgbevf_get_regs_len(struct net_device *netdev)
197{
198 return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
199}
200
201static void ixgbevf_get_regs(struct net_device *netdev,
202 struct ethtool_regs *regs,
203 void *p)
204{
205 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
206 struct ixgbe_hw *hw = &adapter->hw;
207 u32 *regs_buff = p;
208 u32 regs_len = ixgbevf_get_regs_len(netdev);
209 u8 i;
210
211 memset(p, 0, regs_len);
212
213 regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
214
215 /* General Registers */
216 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
217 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
218 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
219 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
220 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
221
222 /* Interrupt */
223 /* don't read EICR because it can clear interrupt causes, instead
224 * read EICS which is a shadow but doesn't clear EICR */
225 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
226 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
227 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
228 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
229 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
230 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
231 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
232 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
233 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
234
235 /* Receive DMA */
236 for (i = 0; i < 2; i++)
237 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
238 for (i = 0; i < 2; i++)
239 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
240 for (i = 0; i < 2; i++)
241 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
242 for (i = 0; i < 2; i++)
243 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
244 for (i = 0; i < 2; i++)
245 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
246 for (i = 0; i < 2; i++)
247 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
248 for (i = 0; i < 2; i++)
249 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
250
251 /* Receive */
252 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
253
254 /* Transmit */
255 for (i = 0; i < 2; i++)
256 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
257 for (i = 0; i < 2; i++)
258 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
259 for (i = 0; i < 2; i++)
260 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
261 for (i = 0; i < 2; i++)
262 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
263 for (i = 0; i < 2; i++)
264 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
265 for (i = 0; i < 2; i++)
266 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
267 for (i = 0; i < 2; i++)
268 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
269 for (i = 0; i < 2; i++)
270 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
271
272 for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
273 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
274}
275
276static void ixgbevf_get_drvinfo(struct net_device *netdev,
277 struct ethtool_drvinfo *drvinfo)
278{
279 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
280
281 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
282 strlcpy(drvinfo->version, ixgbevf_driver_version,
283 sizeof(drvinfo->version));
284 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
285 sizeof(drvinfo->bus_info));
286}
287
288static void ixgbevf_get_ringparam(struct net_device *netdev,
289 struct ethtool_ringparam *ring)
290{
291 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
292 struct ixgbevf_ring *tx_ring = adapter->tx_ring;
293 struct ixgbevf_ring *rx_ring = adapter->rx_ring;
294
295 ring->rx_max_pending = IXGBEVF_MAX_RXD;
296 ring->tx_max_pending = IXGBEVF_MAX_TXD;
297 ring->rx_pending = rx_ring->count;
298 ring->tx_pending = tx_ring->count;
299}
300
301static int ixgbevf_set_ringparam(struct net_device *netdev,
302 struct ethtool_ringparam *ring)
303{
304 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
305 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
306 int i, err = 0;
307 u32 new_rx_count, new_tx_count;
308
309 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
310 return -EINVAL;
311
312 new_rx_count = max(ring->rx_pending, (u32)IXGBEVF_MIN_RXD);
313 new_rx_count = min(new_rx_count, (u32)IXGBEVF_MAX_RXD);
314 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
315
316 new_tx_count = max(ring->tx_pending, (u32)IXGBEVF_MIN_TXD);
317 new_tx_count = min(new_tx_count, (u32)IXGBEVF_MAX_TXD);
318 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
319
320 if ((new_tx_count == adapter->tx_ring->count) &&
321 (new_rx_count == adapter->rx_ring->count)) {
322 /* nothing to do */
323 return 0;
324 }
325
326 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
327 msleep(1);
328
329 /*
330 * If the adapter isn't up and running then just set the
331 * new parameters and scurry for the exits.
332 */
333 if (!netif_running(adapter->netdev)) {
334 for (i = 0; i < adapter->num_tx_queues; i++)
335 adapter->tx_ring[i].count = new_tx_count;
336 for (i = 0; i < adapter->num_rx_queues; i++)
337 adapter->rx_ring[i].count = new_rx_count;
338 adapter->tx_ring_count = new_tx_count;
339 adapter->rx_ring_count = new_rx_count;
340 goto clear_reset;
341 }
342
343 tx_ring = kcalloc(adapter->num_tx_queues,
344 sizeof(struct ixgbevf_ring), GFP_KERNEL);
345 if (!tx_ring) {
346 err = -ENOMEM;
347 goto clear_reset;
348 }
349
350 rx_ring = kcalloc(adapter->num_rx_queues,
351 sizeof(struct ixgbevf_ring), GFP_KERNEL);
352 if (!rx_ring) {
353 err = -ENOMEM;
354 goto err_rx_setup;
355 }
356
357 ixgbevf_down(adapter);
358
359 memcpy(tx_ring, adapter->tx_ring,
360 adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
361 for (i = 0; i < adapter->num_tx_queues; i++) {
362 tx_ring[i].count = new_tx_count;
363 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
364 if (err) {
365 while (i) {
366 i--;
367 ixgbevf_free_tx_resources(adapter,
368 &tx_ring[i]);
369 }
370 goto err_tx_ring_setup;
371 }
372 tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
373 }
374
375 memcpy(rx_ring, adapter->rx_ring,
376 adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
377 for (i = 0; i < adapter->num_rx_queues; i++) {
378 rx_ring[i].count = new_rx_count;
379 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
380 if (err) {
381 while (i) {
382 i--;
383 ixgbevf_free_rx_resources(adapter,
384 &rx_ring[i]);
385 }
386 goto err_rx_ring_setup;
387 }
388 rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
389 }
390
391 /*
392 * Only switch to new rings if all the prior allocations
393 * and ring setups have succeeded.
394 */
395 kfree(adapter->tx_ring);
396 adapter->tx_ring = tx_ring;
397 adapter->tx_ring_count = new_tx_count;
398
399 kfree(adapter->rx_ring);
400 adapter->rx_ring = rx_ring;
401 adapter->rx_ring_count = new_rx_count;
402
403 /* success! */
404 ixgbevf_up(adapter);
405
406 goto clear_reset;
407
408err_rx_ring_setup:
409 for(i = 0; i < adapter->num_tx_queues; i++)
410 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
411
412err_tx_ring_setup:
413 kfree(rx_ring);
414
415err_rx_setup:
416 kfree(tx_ring);
417
418clear_reset:
419 clear_bit(__IXGBEVF_RESETTING, &adapter->state);
420 return err;
421}
422
423static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
424{
425 switch (stringset) {
426 case ETH_SS_TEST:
427 return IXGBE_TEST_LEN;
428 case ETH_SS_STATS:
429 return IXGBE_GLOBAL_STATS_LEN;
430 default:
431 return -EINVAL;
432 }
433}
434
435static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
436 struct ethtool_stats *stats, u64 *data)
437{
438 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
439 int i;
440
441 ixgbevf_update_stats(adapter);
442 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
443 char *p = (char *)adapter +
444 ixgbe_gstrings_stats[i].stat_offset;
445 char *b = (char *)adapter +
446 ixgbe_gstrings_stats[i].base_stat_offset;
447 char *r = (char *)adapter +
448 ixgbe_gstrings_stats[i].saved_reset_offset;
449 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
450 sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
451 ((ixgbe_gstrings_stats[i].sizeof_stat ==
452 sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
453 ((ixgbe_gstrings_stats[i].sizeof_stat ==
454 sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
455 }
456}
457
458static 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
479static 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 */
494struct 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 */
520static 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 { 0, 0, 0, 0 }
531};
532
533static const u32 register_test_patterns[] = {
534 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
535};
536
537#define REG_PATTERN_TEST(R, M, W) \
538{ \
539 u32 pat, val, before; \
540 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { \
541 before = readl(adapter->hw.hw_addr + R); \
542 writel((register_test_patterns[pat] & W), \
543 (adapter->hw.hw_addr + R)); \
544 val = readl(adapter->hw.hw_addr + R); \
545 if (val != (register_test_patterns[pat] & W & M)) { \
546 hw_dbg(&adapter->hw, \
547 "pattern test reg %04X failed: got " \
548 "0x%08X expected 0x%08X\n", \
549 R, val, (register_test_patterns[pat] & W & M)); \
550 *data = R; \
551 writel(before, adapter->hw.hw_addr + R); \
552 return 1; \
553 } \
554 writel(before, adapter->hw.hw_addr + R); \
555 } \
556}
557
558#define REG_SET_AND_CHECK(R, M, W) \
559{ \
560 u32 val, before; \
561 before = readl(adapter->hw.hw_addr + R); \
562 writel((W & M), (adapter->hw.hw_addr + R)); \
563 val = readl(adapter->hw.hw_addr + R); \
564 if ((W & M) != (val & M)) { \
565 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
566 "0x%08X\n", R, (val & M), (W & M)); \
567 *data = R; \
568 writel(before, (adapter->hw.hw_addr + R)); \
569 return 1; \
570 } \
571 writel(before, (adapter->hw.hw_addr + R)); \
572}
573
574static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
575{
576 const struct ixgbevf_reg_test *test;
577 u32 i;
578
579 test = reg_test_vf;
580
581 /*
582 * Perform the register test, looping through the test table
583 * until we either fail or reach the null entry.
584 */
585 while (test->reg) {
586 for (i = 0; i < test->array_len; i++) {
587 switch (test->test_type) {
588 case PATTERN_TEST:
589 REG_PATTERN_TEST(test->reg + (i * 0x40),
590 test->mask,
591 test->write);
592 break;
593 case SET_READ_TEST:
594 REG_SET_AND_CHECK(test->reg + (i * 0x40),
595 test->mask,
596 test->write);
597 break;
598 case WRITE_NO_TEST:
599 writel(test->write,
600 (adapter->hw.hw_addr + test->reg)
601 + (i * 0x40));
602 break;
603 case TABLE32_TEST:
604 REG_PATTERN_TEST(test->reg + (i * 4),
605 test->mask,
606 test->write);
607 break;
608 case TABLE64_TEST_LO:
609 REG_PATTERN_TEST(test->reg + (i * 8),
610 test->mask,
611 test->write);
612 break;
613 case TABLE64_TEST_HI:
614 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
615 test->mask,
616 test->write);
617 break;
618 }
619 }
620 test++;
621 }
622
623 *data = 0;
624 return *data;
625}
626
627static void ixgbevf_diag_test(struct net_device *netdev,
628 struct ethtool_test *eth_test, u64 *data)
629{
630 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
631 bool if_running = netif_running(netdev);
632
633 set_bit(__IXGBEVF_TESTING, &adapter->state);
634 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
635 /* Offline tests */
636
637 hw_dbg(&adapter->hw, "offline testing starting\n");
638
639 /* Link test performed before hardware reset so autoneg doesn't
640 * interfere with test result */
641 if (ixgbevf_link_test(adapter, &data[1]))
642 eth_test->flags |= ETH_TEST_FL_FAILED;
643
644 if (if_running)
645 /* indicate we're in test mode */
646 dev_close(netdev);
647 else
648 ixgbevf_reset(adapter);
649
650 hw_dbg(&adapter->hw, "register testing starting\n");
651 if (ixgbevf_reg_test(adapter, &data[0]))
652 eth_test->flags |= ETH_TEST_FL_FAILED;
653
654 ixgbevf_reset(adapter);
655
656 clear_bit(__IXGBEVF_TESTING, &adapter->state);
657 if (if_running)
658 dev_open(netdev);
659 } else {
660 hw_dbg(&adapter->hw, "online testing starting\n");
661 /* Online tests */
662 if (ixgbevf_link_test(adapter, &data[1]))
663 eth_test->flags |= ETH_TEST_FL_FAILED;
664
665 /* Online tests aren't run; pass by default */
666 data[0] = 0;
667
668 clear_bit(__IXGBEVF_TESTING, &adapter->state);
669 }
670 msleep_interruptible(4 * 1000);
671}
672
673static int ixgbevf_nway_reset(struct net_device *netdev)
674{
675 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
676
677 if (netif_running(netdev)) {
678 if (!adapter->dev_closed)
679 ixgbevf_reinit_locked(adapter);
680 }
681
682 return 0;
683}
684
685static const struct ethtool_ops ixgbevf_ethtool_ops = {
686 .get_settings = ixgbevf_get_settings,
687 .get_drvinfo = ixgbevf_get_drvinfo,
688 .get_regs_len = ixgbevf_get_regs_len,
689 .get_regs = ixgbevf_get_regs,
690 .nway_reset = ixgbevf_nway_reset,
691 .get_link = ethtool_op_get_link,
692 .get_ringparam = ixgbevf_get_ringparam,
693 .set_ringparam = ixgbevf_set_ringparam,
694 .get_msglevel = ixgbevf_get_msglevel,
695 .set_msglevel = ixgbevf_set_msglevel,
696 .self_test = ixgbevf_diag_test,
697 .get_sset_count = ixgbevf_get_sset_count,
698 .get_strings = ixgbevf_get_strings,
699 .get_ethtool_stats = ixgbevf_get_ethtool_stats,
700};
701
702void ixgbevf_set_ethtool_ops(struct net_device *netdev)
703{
704 SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
705}