ifb: add performance flags
[linux-2.6.git] / drivers / net / vmxnet3 / vmxnet3_ethtool.c
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 static u32
37 vmxnet3_get_rx_csum(struct net_device *netdev)
38 {
39         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
40         return adapter->rxcsum;
41 }
42
43
44 static int
45 vmxnet3_set_rx_csum(struct net_device *netdev, u32 val)
46 {
47         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
48
49         if (adapter->rxcsum != val) {
50                 adapter->rxcsum = val;
51                 if (netif_running(netdev)) {
52                         if (val)
53                                 adapter->shared->devRead.misc.uptFeatures |=
54                                 UPT1_F_RXCSUM;
55                         else
56                                 adapter->shared->devRead.misc.uptFeatures &=
57                                 ~UPT1_F_RXCSUM;
58
59                         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
60                                                VMXNET3_CMD_UPDATE_FEATURE);
61                 }
62         }
63         return 0;
64 }
65
66
67 /* per tq stats maintained by the device */
68 static const struct vmxnet3_stat_desc
69 vmxnet3_tq_dev_stats[] = {
70         /* description,         offset */
71         { "TSO pkts tx",        offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
72         { "TSO bytes tx",       offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
73         { "ucast pkts tx",      offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
74         { "ucast bytes tx",     offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
75         { "mcast pkts tx",      offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
76         { "mcast bytes tx",     offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
77         { "bcast pkts tx",      offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
78         { "bcast bytes tx",     offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
79         { "pkts tx err",        offsetof(struct UPT1_TxStats, pktsTxError) },
80         { "pkts tx discard",    offsetof(struct UPT1_TxStats, pktsTxDiscard) },
81 };
82
83 /* per tq stats maintained by the driver */
84 static const struct vmxnet3_stat_desc
85 vmxnet3_tq_driver_stats[] = {
86         /* description,         offset */
87         {"drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats,
88                                         drop_total) },
89         { "   too many frags",  offsetof(struct vmxnet3_tq_driver_stats,
90                                         drop_too_many_frags) },
91         { "   giant hdr",       offsetof(struct vmxnet3_tq_driver_stats,
92                                         drop_oversized_hdr) },
93         { "   hdr err",         offsetof(struct vmxnet3_tq_driver_stats,
94                                         drop_hdr_inspect_err) },
95         { "   tso",             offsetof(struct vmxnet3_tq_driver_stats,
96                                         drop_tso) },
97         { "ring full",          offsetof(struct vmxnet3_tq_driver_stats,
98                                         tx_ring_full) },
99         { "pkts linearized",    offsetof(struct vmxnet3_tq_driver_stats,
100                                         linearized) },
101         { "hdr cloned",         offsetof(struct vmxnet3_tq_driver_stats,
102                                         copy_skb_header) },
103         { "giant hdr",          offsetof(struct vmxnet3_tq_driver_stats,
104                                         oversized_hdr) },
105 };
106
107 /* per rq stats maintained by the device */
108 static const struct vmxnet3_stat_desc
109 vmxnet3_rq_dev_stats[] = {
110         { "LRO pkts rx",        offsetof(struct UPT1_RxStats, LROPktsRxOK) },
111         { "LRO byte rx",        offsetof(struct UPT1_RxStats, LROBytesRxOK) },
112         { "ucast pkts rx",      offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
113         { "ucast bytes rx",     offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
114         { "mcast pkts rx",      offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
115         { "mcast bytes rx",     offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
116         { "bcast pkts rx",      offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
117         { "bcast bytes rx",     offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
118         { "pkts rx out of buf", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
119         { "pkts rx err",        offsetof(struct UPT1_RxStats, pktsRxError) },
120 };
121
122 /* per rq stats maintained by the driver */
123 static const struct vmxnet3_stat_desc
124 vmxnet3_rq_driver_stats[] = {
125         /* description,         offset */
126         { "drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
127                                            drop_total) },
128         { "   err",            offsetof(struct vmxnet3_rq_driver_stats,
129                                         drop_err) },
130         { "   fcs",            offsetof(struct vmxnet3_rq_driver_stats,
131                                         drop_fcs) },
132         { "rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
133                                         rx_buf_alloc_failure) },
134 };
135
136 /* gloabl stats maintained by the driver */
137 static const struct vmxnet3_stat_desc
138 vmxnet3_global_stats[] = {
139         /* description,         offset */
140         { "tx timeout count",   offsetof(struct vmxnet3_adapter,
141                                          tx_timeout_count) }
142 };
143
144
145 struct net_device_stats *
146 vmxnet3_get_stats(struct net_device *netdev)
147 {
148         struct vmxnet3_adapter *adapter;
149         struct vmxnet3_tq_driver_stats *drvTxStats;
150         struct vmxnet3_rq_driver_stats *drvRxStats;
151         struct UPT1_TxStats *devTxStats;
152         struct UPT1_RxStats *devRxStats;
153         struct net_device_stats *net_stats = &netdev->stats;
154         int i;
155
156         adapter = netdev_priv(netdev);
157
158         /* Collect the dev stats into the shared area */
159         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
160
161         memset(net_stats, 0, sizeof(*net_stats));
162         for (i = 0; i < adapter->num_tx_queues; i++) {
163                 devTxStats = &adapter->tqd_start[i].stats;
164                 drvTxStats = &adapter->tx_queue[i].stats;
165                 net_stats->tx_packets += devTxStats->ucastPktsTxOK +
166                                         devTxStats->mcastPktsTxOK +
167                                         devTxStats->bcastPktsTxOK;
168                 net_stats->tx_bytes += devTxStats->ucastBytesTxOK +
169                                       devTxStats->mcastBytesTxOK +
170                                       devTxStats->bcastBytesTxOK;
171                 net_stats->tx_errors += devTxStats->pktsTxError;
172                 net_stats->tx_dropped += drvTxStats->drop_total;
173         }
174
175         for (i = 0; i < adapter->num_rx_queues; i++) {
176                 devRxStats = &adapter->rqd_start[i].stats;
177                 drvRxStats = &adapter->rx_queue[i].stats;
178                 net_stats->rx_packets += devRxStats->ucastPktsRxOK +
179                                         devRxStats->mcastPktsRxOK +
180                                         devRxStats->bcastPktsRxOK;
181
182                 net_stats->rx_bytes += devRxStats->ucastBytesRxOK +
183                                       devRxStats->mcastBytesRxOK +
184                                       devRxStats->bcastBytesRxOK;
185
186                 net_stats->rx_errors += devRxStats->pktsRxError;
187                 net_stats->rx_dropped += drvRxStats->drop_total;
188                 net_stats->multicast +=  devRxStats->mcastPktsRxOK;
189         }
190         return net_stats;
191 }
192
193 static int
194 vmxnet3_get_sset_count(struct net_device *netdev, int sset)
195 {
196         switch (sset) {
197         case ETH_SS_STATS:
198                 return ARRAY_SIZE(vmxnet3_tq_dev_stats) +
199                         ARRAY_SIZE(vmxnet3_tq_driver_stats) +
200                         ARRAY_SIZE(vmxnet3_rq_dev_stats) +
201                         ARRAY_SIZE(vmxnet3_rq_driver_stats) +
202                         ARRAY_SIZE(vmxnet3_global_stats);
203         default:
204                 return -EOPNOTSUPP;
205         }
206 }
207
208
209 static int
210 vmxnet3_get_regs_len(struct net_device *netdev)
211 {
212         return 20 * sizeof(u32);
213 }
214
215
216 static void
217 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
218 {
219         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
220
221         strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
222         drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
223
224         strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
225                 sizeof(drvinfo->version));
226         drvinfo->driver[sizeof(drvinfo->version) - 1] = '\0';
227
228         strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
229         drvinfo->fw_version[sizeof(drvinfo->fw_version) - 1] = '\0';
230
231         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
232                 ETHTOOL_BUSINFO_LEN);
233         drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
234         drvinfo->testinfo_len = 0;
235         drvinfo->eedump_len   = 0;
236         drvinfo->regdump_len  = vmxnet3_get_regs_len(netdev);
237 }
238
239
240 static void
241 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
242 {
243         if (stringset == ETH_SS_STATS) {
244                 int i;
245
246                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
247                         memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
248                                ETH_GSTRING_LEN);
249                         buf += ETH_GSTRING_LEN;
250                 }
251                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) {
252                         memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
253                                ETH_GSTRING_LEN);
254                         buf += ETH_GSTRING_LEN;
255                 }
256                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
257                         memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
258                                ETH_GSTRING_LEN);
259                         buf += ETH_GSTRING_LEN;
260                 }
261                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) {
262                         memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
263                                ETH_GSTRING_LEN);
264                         buf += ETH_GSTRING_LEN;
265                 }
266                 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
267                         memcpy(buf, vmxnet3_global_stats[i].desc,
268                                 ETH_GSTRING_LEN);
269                         buf += ETH_GSTRING_LEN;
270                 }
271         }
272 }
273
274 static int
275 vmxnet3_set_flags(struct net_device *netdev, u32 data)
276 {
277         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
278         u8 lro_requested = (data & ETH_FLAG_LRO) == 0 ? 0 : 1;
279         u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;
280
281         if (data & ~ETH_FLAG_LRO)
282                 return -EOPNOTSUPP;
283
284         if (lro_requested ^ lro_present) {
285                 /* toggle the LRO feature*/
286                 netdev->features ^= NETIF_F_LRO;
287
288                 /* update harware LRO capability accordingly */
289                 if (lro_requested)
290                         adapter->shared->devRead.misc.uptFeatures |=
291                                                         UPT1_F_LRO;
292                 else
293                         adapter->shared->devRead.misc.uptFeatures &=
294                                                         ~UPT1_F_LRO;
295                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
296                                        VMXNET3_CMD_UPDATE_FEATURE);
297         }
298         return 0;
299 }
300
301 static void
302 vmxnet3_get_ethtool_stats(struct net_device *netdev,
303                           struct ethtool_stats *stats, u64  *buf)
304 {
305         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
306         u8 *base;
307         int i;
308         int j = 0;
309
310         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
311
312         /* this does assume each counter is 64-bit wide */
313 /* TODO change this for multiple queues */
314
315         base = (u8 *)&adapter->tqd_start[j].stats;
316         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
317                 *buf++ = *(u64 *)(base + 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 + vmxnet3_tq_driver_stats[i].offset);
322
323         base = (u8 *)&adapter->rqd_start[j].stats;
324         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
325                 *buf++ = *(u64 *)(base + vmxnet3_rq_dev_stats[i].offset);
326
327         base = (u8 *)&adapter->rx_queue[j].stats;
328         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
329                 *buf++ = *(u64 *)(base + vmxnet3_rq_driver_stats[i].offset);
330
331         base = (u8 *)adapter;
332         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
333                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
334 }
335
336
337 static void
338 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
339 {
340         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
341         u32 *buf = p;
342         int i = 0;
343
344         memset(p, 0, vmxnet3_get_regs_len(netdev));
345
346         regs->version = 1;
347
348         /* Update vmxnet3_get_regs_len if we want to dump more registers */
349
350         /* make each ring use multiple of 16 bytes */
351 /* TODO change this for multiple queues */
352         buf[0] = adapter->tx_queue[i].tx_ring.next2fill;
353         buf[1] = adapter->tx_queue[i].tx_ring.next2comp;
354         buf[2] = adapter->tx_queue[i].tx_ring.gen;
355         buf[3] = 0;
356
357         buf[4] = adapter->tx_queue[i].comp_ring.next2proc;
358         buf[5] = adapter->tx_queue[i].comp_ring.gen;
359         buf[6] = adapter->tx_queue[i].stopped;
360         buf[7] = 0;
361
362         buf[8] = adapter->rx_queue[i].rx_ring[0].next2fill;
363         buf[9] = adapter->rx_queue[i].rx_ring[0].next2comp;
364         buf[10] = adapter->rx_queue[i].rx_ring[0].gen;
365         buf[11] = 0;
366
367         buf[12] = adapter->rx_queue[i].rx_ring[1].next2fill;
368         buf[13] = adapter->rx_queue[i].rx_ring[1].next2comp;
369         buf[14] = adapter->rx_queue[i].rx_ring[1].gen;
370         buf[15] = 0;
371
372         buf[16] = adapter->rx_queue[i].comp_ring.next2proc;
373         buf[17] = adapter->rx_queue[i].comp_ring.gen;
374         buf[18] = 0;
375         buf[19] = 0;
376 }
377
378
379 static void
380 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
381 {
382         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
383
384         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
385         wol->wolopts = adapter->wol;
386 }
387
388
389 static int
390 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
391 {
392         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
393
394         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
395                             WAKE_MAGICSECURE)) {
396                 return -EOPNOTSUPP;
397         }
398
399         adapter->wol = wol->wolopts;
400
401         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
402
403         return 0;
404 }
405
406
407 static int
408 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
409 {
410         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
411
412         ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
413                           SUPPORTED_TP;
414         ecmd->advertising = ADVERTISED_TP;
415         ecmd->port = PORT_TP;
416         ecmd->transceiver = XCVR_INTERNAL;
417
418         if (adapter->link_speed) {
419                 ecmd->speed = adapter->link_speed;
420                 ecmd->duplex = DUPLEX_FULL;
421         } else {
422                 ecmd->speed = -1;
423                 ecmd->duplex = -1;
424         }
425         return 0;
426 }
427
428
429 static void
430 vmxnet3_get_ringparam(struct net_device *netdev,
431                       struct ethtool_ringparam *param)
432 {
433         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
434
435         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
436         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
437         param->rx_mini_max_pending = 0;
438         param->rx_jumbo_max_pending = 0;
439
440         param->rx_pending = adapter->rx_queue[0].rx_ring[0].size *
441                             adapter->num_rx_queues;
442         param->tx_pending = adapter->tx_queue[0].tx_ring.size *
443                             adapter->num_tx_queues;
444         param->rx_mini_pending = 0;
445         param->rx_jumbo_pending = 0;
446 }
447
448
449 static int
450 vmxnet3_set_ringparam(struct net_device *netdev,
451                       struct ethtool_ringparam *param)
452 {
453         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
454         u32 new_tx_ring_size, new_rx_ring_size;
455         u32 sz;
456         int err = 0;
457
458         if (param->tx_pending == 0 || param->tx_pending >
459                                                 VMXNET3_TX_RING_MAX_SIZE)
460                 return -EINVAL;
461
462         if (param->rx_pending == 0 || param->rx_pending >
463                                                 VMXNET3_RX_RING_MAX_SIZE)
464                 return -EINVAL;
465
466
467         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
468         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
469                                                         ~VMXNET3_RING_SIZE_MASK;
470         new_tx_ring_size = min_t(u32, new_tx_ring_size,
471                                  VMXNET3_TX_RING_MAX_SIZE);
472         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
473                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
474                 return -EINVAL;
475
476         /* ring0 has to be a multiple of
477          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
478          */
479         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
480         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
481         new_rx_ring_size = min_t(u32, new_rx_ring_size,
482                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
483         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
484                                                            sz) != 0)
485                 return -EINVAL;
486
487         if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size &&
488             new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) {
489                 return 0;
490         }
491
492         /*
493          * Reset_work may be in the middle of resetting the device, wait for its
494          * completion.
495          */
496         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
497                 msleep(1);
498
499         if (netif_running(netdev)) {
500                 vmxnet3_quiesce_dev(adapter);
501                 vmxnet3_reset_dev(adapter);
502
503                 /* recreate the rx queue and the tx queue based on the
504                  * new sizes */
505                 vmxnet3_tq_destroy_all(adapter);
506                 vmxnet3_rq_destroy_all(adapter);
507
508                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
509                         new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE);
510
511                 if (err) {
512                         /* failed, most likely because of OOM, try default
513                          * size */
514                         printk(KERN_ERR "%s: failed to apply new sizes, try the"
515                                 " default ones\n", netdev->name);
516                         err = vmxnet3_create_queues(adapter,
517                                                     VMXNET3_DEF_TX_RING_SIZE,
518                                                     VMXNET3_DEF_RX_RING_SIZE,
519                                                     VMXNET3_DEF_RX_RING_SIZE);
520                         if (err) {
521                                 printk(KERN_ERR "%s: failed to create queues "
522                                         "with default sizes. Closing it\n",
523                                         netdev->name);
524                                 goto out;
525                         }
526                 }
527
528                 err = vmxnet3_activate_dev(adapter);
529                 if (err)
530                         printk(KERN_ERR "%s: failed to re-activate, error %d."
531                                 " Closing it\n", netdev->name, err);
532         }
533
534 out:
535         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
536         if (err)
537                 vmxnet3_force_close(adapter);
538
539         return err;
540 }
541
542
543 static int
544 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
545                   void *rules)
546 {
547         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
548         switch (info->cmd) {
549         case ETHTOOL_GRXRINGS:
550                 info->data = adapter->num_rx_queues;
551                 return 0;
552         }
553         return -EOPNOTSUPP;
554 }
555
556 #ifdef VMXNET3_RSS
557 static int
558 vmxnet3_get_rss_indir(struct net_device *netdev,
559                       struct ethtool_rxfh_indir *p)
560 {
561         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
562         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
563         unsigned int n = min_t(unsigned int, p->size, rssConf->indTableSize);
564
565         p->size = rssConf->indTableSize;
566         while (n--)
567                 p->ring_index[n] = rssConf->indTable[n];
568         return 0;
569
570 }
571
572 static int
573 vmxnet3_set_rss_indir(struct net_device *netdev,
574                       const struct ethtool_rxfh_indir *p)
575 {
576         unsigned int i;
577         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
578         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
579
580         if (p->size != rssConf->indTableSize)
581                 return -EINVAL;
582         for (i = 0; i < rssConf->indTableSize; i++) {
583                 /*
584                  * Return with error code if any of the queue indices
585                  * is out of range
586                  */
587                 if (p->ring_index[i] < 0 ||
588                     p->ring_index[i] >= adapter->num_rx_queues)
589                         return -EINVAL;
590         }
591
592         for (i = 0; i < rssConf->indTableSize; i++)
593                 rssConf->indTable[i] = p->ring_index[i];
594
595         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
596                                VMXNET3_CMD_UPDATE_RSSIDT);
597
598         return 0;
599
600 }
601 #endif
602
603 static struct ethtool_ops vmxnet3_ethtool_ops = {
604         .get_settings      = vmxnet3_get_settings,
605         .get_drvinfo       = vmxnet3_get_drvinfo,
606         .get_regs_len      = vmxnet3_get_regs_len,
607         .get_regs          = vmxnet3_get_regs,
608         .get_wol           = vmxnet3_get_wol,
609         .set_wol           = vmxnet3_set_wol,
610         .get_link          = ethtool_op_get_link,
611         .get_rx_csum       = vmxnet3_get_rx_csum,
612         .set_rx_csum       = vmxnet3_set_rx_csum,
613         .get_tx_csum       = ethtool_op_get_tx_csum,
614         .set_tx_csum       = ethtool_op_set_tx_hw_csum,
615         .get_sg            = ethtool_op_get_sg,
616         .set_sg            = ethtool_op_set_sg,
617         .get_tso           = ethtool_op_get_tso,
618         .set_tso           = ethtool_op_set_tso,
619         .get_strings       = vmxnet3_get_strings,
620         .get_flags         = ethtool_op_get_flags,
621         .set_flags         = vmxnet3_set_flags,
622         .get_sset_count    = vmxnet3_get_sset_count,
623         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
624         .get_ringparam     = vmxnet3_get_ringparam,
625         .set_ringparam     = vmxnet3_set_ringparam,
626         .get_rxnfc         = vmxnet3_get_rxnfc,
627 #ifdef VMXNET3_RSS
628         .get_rxfh_indir    = vmxnet3_get_rss_indir,
629         .set_rxfh_indir    = vmxnet3_set_rss_indir,
630 #endif
631 };
632
633 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
634 {
635         SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops);
636 }