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Avoid beyond bounds copy while caching ACL
[zen-stable.git] / drivers / net / vmxnet3 / vmxnet3_ethtool.c
blob587a218b2345ed06eb938f5d01ed832c48dd7459
1 /*
2 * Linux driver for VMware's vmxnet3 ethernet NIC.
3 *
4 * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; version 2 of the License and no later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
13 * NON INFRINGEMENT. See the GNU General Public License for more
14 * details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * The full GNU General Public License is included in this distribution in
21 * the file called "COPYING".
22 *
23 * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
24 *
25 */
26
27
28 #include "vmxnet3_int.h"
29
30 struct vmxnet3_stat_desc {
31 char desc[ETH_GSTRING_LEN];
32 int offset;
33 };
34
35
36 /* per tq stats maintained by the device */
37 static const struct vmxnet3_stat_desc
38 vmxnet3_tq_dev_stats[] = {
39 /* description, offset */
40 { "Tx Queue#", 0 },
41 { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
42 { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
43 { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
44 { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
45 { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
46 { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
47 { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
48 { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
49 { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) },
50 { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) },
51 };
52
53 /* per tq stats maintained by the driver */
54 static const struct vmxnet3_stat_desc
55 vmxnet3_tq_driver_stats[] = {
56 /* description, offset */
57 {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats,
58 drop_total) },
59 { " too many frags", offsetof(struct vmxnet3_tq_driver_stats,
60 drop_too_many_frags) },
61 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats,
62 drop_oversized_hdr) },
63 { " hdr err", offsetof(struct vmxnet3_tq_driver_stats,
64 drop_hdr_inspect_err) },
65 { " tso", offsetof(struct vmxnet3_tq_driver_stats,
66 drop_tso) },
67 { " ring full", offsetof(struct vmxnet3_tq_driver_stats,
68 tx_ring_full) },
69 { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats,
70 linearized) },
71 { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats,
72 copy_skb_header) },
73 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats,
74 oversized_hdr) },
75 };
76
77 /* per rq stats maintained by the device */
78 static const struct vmxnet3_stat_desc
79 vmxnet3_rq_dev_stats[] = {
80 { "Rx Queue#", 0 },
81 { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) },
82 { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) },
83 { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
84 { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
85 { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
86 { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
87 { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
88 { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
89 { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
90 { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) },
91 };
92
93 /* per rq stats maintained by the driver */
94 static const struct vmxnet3_stat_desc
95 vmxnet3_rq_driver_stats[] = {
96 /* description, offset */
97 { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
98 drop_total) },
99 { " err", offsetof(struct vmxnet3_rq_driver_stats,
100 drop_err) },
101 { " fcs", offsetof(struct vmxnet3_rq_driver_stats,
102 drop_fcs) },
103 { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
104 rx_buf_alloc_failure) },
105 };
106
107 /* gloabl stats maintained by the driver */
108 static const struct vmxnet3_stat_desc
109 vmxnet3_global_stats[] = {
110 /* description, offset */
111 { "tx timeout count", offsetof(struct vmxnet3_adapter,
112 tx_timeout_count) }
113 };
114
115
116 struct rtnl_link_stats64 *
117 vmxnet3_get_stats64(struct net_device *netdev,
118 struct rtnl_link_stats64 *stats)
119 {
120 struct vmxnet3_adapter *adapter;
121 struct vmxnet3_tq_driver_stats *drvTxStats;
122 struct vmxnet3_rq_driver_stats *drvRxStats;
123 struct UPT1_TxStats *devTxStats;
124 struct UPT1_RxStats *devRxStats;
125 unsigned long flags;
126 int i;
127
128 adapter = netdev_priv(netdev);
129
130 /* Collect the dev stats into the shared area */
131 spin_lock_irqsave(&adapter->cmd_lock, flags);
132 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
133 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
134
135 for (i = 0; i < adapter->num_tx_queues; i++) {
136 devTxStats = &adapter->tqd_start[i].stats;
137 drvTxStats = &adapter->tx_queue[i].stats;
138 stats->tx_packets += devTxStats->ucastPktsTxOK +
139 devTxStats->mcastPktsTxOK +
140 devTxStats->bcastPktsTxOK;
141 stats->tx_bytes += devTxStats->ucastBytesTxOK +
142 devTxStats->mcastBytesTxOK +
143 devTxStats->bcastBytesTxOK;
144 stats->tx_errors += devTxStats->pktsTxError;
145 stats->tx_dropped += drvTxStats->drop_total;
146 }
147
148 for (i = 0; i < adapter->num_rx_queues; i++) {
149 devRxStats = &adapter->rqd_start[i].stats;
150 drvRxStats = &adapter->rx_queue[i].stats;
151 stats->rx_packets += devRxStats->ucastPktsRxOK +
152 devRxStats->mcastPktsRxOK +
153 devRxStats->bcastPktsRxOK;
154
155 stats->rx_bytes += devRxStats->ucastBytesRxOK +
156 devRxStats->mcastBytesRxOK +
157 devRxStats->bcastBytesRxOK;
158
159 stats->rx_errors += devRxStats->pktsRxError;
160 stats->rx_dropped += drvRxStats->drop_total;
161 stats->multicast += devRxStats->mcastPktsRxOK;
162 }
163
164 return stats;
165 }
166
167 static int
168 vmxnet3_get_sset_count(struct net_device *netdev, int sset)
169 {
170 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
171 switch (sset) {
172 case ETH_SS_STATS:
173 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) +
174 ARRAY_SIZE(vmxnet3_tq_driver_stats)) *
175 adapter->num_tx_queues +
176 (ARRAY_SIZE(vmxnet3_rq_dev_stats) +
177 ARRAY_SIZE(vmxnet3_rq_driver_stats)) *
178 adapter->num_rx_queues +
179 ARRAY_SIZE(vmxnet3_global_stats);
180 default:
181 return -EOPNOTSUPP;
182 }
183 }
184
185
186 /* Should be multiple of 4 */
187 #define NUM_TX_REGS 8
188 #define NUM_RX_REGS 12
189
190 static int
191 vmxnet3_get_regs_len(struct net_device *netdev)
192 {
193 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
194 return (adapter->num_tx_queues * NUM_TX_REGS * sizeof(u32) +
195 adapter->num_rx_queues * NUM_RX_REGS * sizeof(u32));
196 }
197
198
199 static void
200 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
201 {
202 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
203
204 strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
205
206 strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
207 sizeof(drvinfo->version));
208
209 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
210 ETHTOOL_BUSINFO_LEN);
211 drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
212 drvinfo->testinfo_len = 0;
213 drvinfo->eedump_len = 0;
214 drvinfo->regdump_len = vmxnet3_get_regs_len(netdev);
215 }
216
217
218 static void
219 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
220 {
221 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
222 if (stringset == ETH_SS_STATS) {
223 int i, j;
224 for (j = 0; j < adapter->num_tx_queues; j++) {
225 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
226 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
227 ETH_GSTRING_LEN);
228 buf += ETH_GSTRING_LEN;
229 }
230 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
231 i++) {
232 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
233 ETH_GSTRING_LEN);
234 buf += ETH_GSTRING_LEN;
235 }
236 }
237
238 for (j = 0; j < adapter->num_rx_queues; j++) {
239 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
240 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
241 ETH_GSTRING_LEN);
242 buf += ETH_GSTRING_LEN;
243 }
244 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
245 i++) {
246 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
247 ETH_GSTRING_LEN);
248 buf += ETH_GSTRING_LEN;
249 }
250 }
251
252 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
253 memcpy(buf, vmxnet3_global_stats[i].desc,
254 ETH_GSTRING_LEN);
255 buf += ETH_GSTRING_LEN;
256 }
257 }
258 }
259
260 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
261 {
262 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
263 unsigned long flags;
264 netdev_features_t changed = features ^ netdev->features;
265
266 if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_HW_VLAN_RX)) {
267 if (features & NETIF_F_RXCSUM)
268 adapter->shared->devRead.misc.uptFeatures |=
269 UPT1_F_RXCSUM;
270 else
271 adapter->shared->devRead.misc.uptFeatures &=
272 ~UPT1_F_RXCSUM;
273
274 /* update harware LRO capability accordingly */
275 if (features & NETIF_F_LRO)
276 adapter->shared->devRead.misc.uptFeatures |=
277 UPT1_F_LRO;
278 else
279 adapter->shared->devRead.misc.uptFeatures &=
280 ~UPT1_F_LRO;
281
282 if (features & NETIF_F_HW_VLAN_RX)
283 adapter->shared->devRead.misc.uptFeatures |=
284 UPT1_F_RXVLAN;
285 else
286 adapter->shared->devRead.misc.uptFeatures &=
287 ~UPT1_F_RXVLAN;
288
289 spin_lock_irqsave(&adapter->cmd_lock, flags);
290 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
291 VMXNET3_CMD_UPDATE_FEATURE);
292 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
293 }
294 return 0;
295 }
296
297 static void
298 vmxnet3_get_ethtool_stats(struct net_device *netdev,
299 struct ethtool_stats *stats, u64 *buf)
300 {
301 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
302 unsigned long flags;
303 u8 *base;
304 int i;
305 int j = 0;
306
307 spin_lock_irqsave(&adapter->cmd_lock, flags);
308 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
309 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
310
311 /* this does assume each counter is 64-bit wide */
312 for (j = 0; j < adapter->num_tx_queues; j++) {
313 base = (u8 *)&adapter->tqd_start[j].stats;
314 *buf++ = (u64)j;
315 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
316 *buf++ = *(u64 *)(base +
317 vmxnet3_tq_dev_stats[i].offset);
318
319 base = (u8 *)&adapter->tx_queue[j].stats;
320 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
321 *buf++ = *(u64 *)(base +
322 vmxnet3_tq_driver_stats[i].offset);
323 }
324
325 for (j = 0; j < adapter->num_tx_queues; j++) {
326 base = (u8 *)&adapter->rqd_start[j].stats;
327 *buf++ = (u64) j;
328 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
329 *buf++ = *(u64 *)(base +
330 vmxnet3_rq_dev_stats[i].offset);
331
332 base = (u8 *)&adapter->rx_queue[j].stats;
333 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
334 *buf++ = *(u64 *)(base +
335 vmxnet3_rq_driver_stats[i].offset);
336 }
337
338 base = (u8 *)adapter;
339 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
340 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
341 }
342
343
344 static void
345 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
346 {
347 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
348 u32 *buf = p;
349 int i = 0, j = 0;
350
351 memset(p, 0, vmxnet3_get_regs_len(netdev));
352
353 regs->version = 1;
354
355 /* Update vmxnet3_get_regs_len if we want to dump more registers */
356
357 /* make each ring use multiple of 16 bytes */
358 for (i = 0; i < adapter->num_tx_queues; i++) {
359 buf[j++] = adapter->tx_queue[i].tx_ring.next2fill;
360 buf[j++] = adapter->tx_queue[i].tx_ring.next2comp;
361 buf[j++] = adapter->tx_queue[i].tx_ring.gen;
362 buf[j++] = 0;
363
364 buf[j++] = adapter->tx_queue[i].comp_ring.next2proc;
365 buf[j++] = adapter->tx_queue[i].comp_ring.gen;
366 buf[j++] = adapter->tx_queue[i].stopped;
367 buf[j++] = 0;
368 }
369
370 for (i = 0; i < adapter->num_rx_queues; i++) {
371 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill;
372 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp;
373 buf[j++] = adapter->rx_queue[i].rx_ring[0].gen;
374 buf[j++] = 0;
375
376 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill;
377 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp;
378 buf[j++] = adapter->rx_queue[i].rx_ring[1].gen;
379 buf[j++] = 0;
380
381 buf[j++] = adapter->rx_queue[i].comp_ring.next2proc;
382 buf[j++] = adapter->rx_queue[i].comp_ring.gen;
383 buf[j++] = 0;
384 buf[j++] = 0;
385 }
386
387 }
388
389
390 static void
391 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
392 {
393 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
394
395 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
396 wol->wolopts = adapter->wol;
397 }
398
399
400 static int
401 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
402 {
403 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
404
405 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
406 WAKE_MAGICSECURE)) {
407 return -EOPNOTSUPP;
408 }
409
410 adapter->wol = wol->wolopts;
411
412 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
413
414 return 0;
415 }
416
417
418 static int
419 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
420 {
421 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
422
423 ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
424 SUPPORTED_TP;
425 ecmd->advertising = ADVERTISED_TP;
426 ecmd->port = PORT_TP;
427 ecmd->transceiver = XCVR_INTERNAL;
428
429 if (adapter->link_speed) {
430 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
431 ecmd->duplex = DUPLEX_FULL;
432 } else {
433 ethtool_cmd_speed_set(ecmd, -1);
434 ecmd->duplex = -1;
435 }
436 return 0;
437 }
438
439
440 static void
441 vmxnet3_get_ringparam(struct net_device *netdev,
442 struct ethtool_ringparam *param)
443 {
444 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
445
446 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
447 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
448 param->rx_mini_max_pending = 0;
449 param->rx_jumbo_max_pending = 0;
450
451 param->rx_pending = adapter->rx_queue[0].rx_ring[0].size *
452 adapter->num_rx_queues;
453 param->tx_pending = adapter->tx_queue[0].tx_ring.size *
454 adapter->num_tx_queues;
455 param->rx_mini_pending = 0;
456 param->rx_jumbo_pending = 0;
457 }
458
459
460 static int
461 vmxnet3_set_ringparam(struct net_device *netdev,
462 struct ethtool_ringparam *param)
463 {
464 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
465 u32 new_tx_ring_size, new_rx_ring_size;
466 u32 sz;
467 int err = 0;
468
469 if (param->tx_pending == 0 || param->tx_pending >
470 VMXNET3_TX_RING_MAX_SIZE)
471 return -EINVAL;
472
473 if (param->rx_pending == 0 || param->rx_pending >
474 VMXNET3_RX_RING_MAX_SIZE)
475 return -EINVAL;
476
477
478 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
479 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
480 ~VMXNET3_RING_SIZE_MASK;
481 new_tx_ring_size = min_t(u32, new_tx_ring_size,
482 VMXNET3_TX_RING_MAX_SIZE);
483 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
484 VMXNET3_RING_SIZE_ALIGN) != 0)
485 return -EINVAL;
486
487 /* ring0 has to be a multiple of
488 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
489 */
490 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
491 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
492 new_rx_ring_size = min_t(u32, new_rx_ring_size,
493 VMXNET3_RX_RING_MAX_SIZE / sz * sz);
494 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
495 sz) != 0)
496 return -EINVAL;
497
498 if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size &&
499 new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) {
500 return 0;
501 }
502
503 /*
504 * Reset_work may be in the middle of resetting the device, wait for its
505 * completion.
506 */
507 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
508 msleep(1);
509
510 if (netif_running(netdev)) {
511 vmxnet3_quiesce_dev(adapter);
512 vmxnet3_reset_dev(adapter);
513
514 /* recreate the rx queue and the tx queue based on the
515 * new sizes */
516 vmxnet3_tq_destroy_all(adapter);
517 vmxnet3_rq_destroy_all(adapter);
518
519 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
520 new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE);
521
522 if (err) {
523 /* failed, most likely because of OOM, try default
524 * size */
525 printk(KERN_ERR "%s: failed to apply new sizes, try the"
526 " default ones\n", netdev->name);
527 err = vmxnet3_create_queues(adapter,
528 VMXNET3_DEF_TX_RING_SIZE,
529 VMXNET3_DEF_RX_RING_SIZE,
530 VMXNET3_DEF_RX_RING_SIZE);
531 if (err) {
532 printk(KERN_ERR "%s: failed to create queues "
533 "with default sizes. Closing it\n",
534 netdev->name);
535 goto out;
536 }
537 }
538
539 err = vmxnet3_activate_dev(adapter);
540 if (err)
541 printk(KERN_ERR "%s: failed to re-activate, error %d."
542 " Closing it\n", netdev->name, err);
543 }
544
545 out:
546 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
547 if (err)
548 vmxnet3_force_close(adapter);
549
550 return err;
551 }
552
553
554 static int
555 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
556 u32 *rules)
557 {
558 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
559 switch (info->cmd) {
560 case ETHTOOL_GRXRINGS:
561 info->data = adapter->num_rx_queues;
562 return 0;
563 }
564 return -EOPNOTSUPP;
565 }
566
567 #ifdef VMXNET3_RSS
568 static u32
569 vmxnet3_get_rss_indir_size(struct net_device *netdev)
570 {
571 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
572 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
573
574 return rssConf->indTableSize;
575 }
576
577 static int
578 vmxnet3_get_rss_indir(struct net_device *netdev, u32 *p)
579 {
580 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
581 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
582 unsigned int n = rssConf->indTableSize;
583
584 while (n--)
585 p[n] = rssConf->indTable[n];
586 return 0;
587
588 }
589
590 static int
591 vmxnet3_set_rss_indir(struct net_device *netdev, const u32 *p)
592 {
593 unsigned int i;
594 unsigned long flags;
595 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
596 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
597
598 for (i = 0; i < rssConf->indTableSize; i++)
599 rssConf->indTable[i] = p[i];
600
601 spin_lock_irqsave(&adapter->cmd_lock, flags);
602 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
603 VMXNET3_CMD_UPDATE_RSSIDT);
604 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
605
606 return 0;
607
608 }
609 #endif
610
611 static const struct ethtool_ops vmxnet3_ethtool_ops = {
612 .get_settings = vmxnet3_get_settings,
613 .get_drvinfo = vmxnet3_get_drvinfo,
614 .get_regs_len = vmxnet3_get_regs_len,
615 .get_regs = vmxnet3_get_regs,
616 .get_wol = vmxnet3_get_wol,
617 .set_wol = vmxnet3_set_wol,
618 .get_link = ethtool_op_get_link,
619 .get_strings = vmxnet3_get_strings,
620 .get_sset_count = vmxnet3_get_sset_count,
621 .get_ethtool_stats = vmxnet3_get_ethtool_stats,
622 .get_ringparam = vmxnet3_get_ringparam,
623 .set_ringparam = vmxnet3_set_ringparam,
624 .get_rxnfc = vmxnet3_get_rxnfc,
625 #ifdef VMXNET3_RSS
626 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
627 .get_rxfh_indir = vmxnet3_get_rss_indir,
628 .set_rxfh_indir = vmxnet3_set_rss_indir,
629 #endif
630 };
631
632 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
633 {
634 SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops);
635 }