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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / vmxnet3 / vmxnet3_ethtool.c
CommitLineData
d1a890fa
SB		 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
30struct vmxnet3_stat_desc {
31 char desc[ETH_GSTRING_LEN];
32 int offset;
33};
34
35
36static u32
37vmxnet3_get_rx_csum(struct net_device *netdev)
38{
39 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
40 return adapter->rxcsum;
41}
42
43
44static int
45vmxnet3_set_rx_csum(struct net_device *netdev, u32 val)
46{
47 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
83d0feff 48 unsigned long flags;
d1a890fa
SB		 49
50 if (adapter->rxcsum != val) {
51 adapter->rxcsum = val;
52 if (netif_running(netdev)) {
53 if (val)
3843e515
HH		 54 adapter->shared->devRead.misc.uptFeatures |=
55 UPT1_F_RXCSUM;
d1a890fa 56 else
3843e515
HH		 57 adapter->shared->devRead.misc.uptFeatures &=
58 ~UPT1_F_RXCSUM;
d1a890fa 59
83d0feff 60 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa
SB		 61 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
62 VMXNET3_CMD_UPDATE_FEATURE);
83d0feff 63 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 64 }
65 }
66 return 0;
67}
68
69
70/* per tq stats maintained by the device */
71static const struct vmxnet3_stat_desc
72vmxnet3_tq_dev_stats[] = {
73 /* description, offset */
76d39dae
SB		 74 { "Tx Queue#", 0 },
75 { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
76 { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
77 { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
78 { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
79 { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
80 { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
81 { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
82 { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
83 { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) },
84 { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) },
d1a890fa
SB		 85};
86
87/* per tq stats maintained by the driver */
88static const struct vmxnet3_stat_desc
89vmxnet3_tq_driver_stats[] = {
90 /* description, offset */
76d39dae
SB		 91 {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats,
92 drop_total) },
93 { " too many frags", offsetof(struct vmxnet3_tq_driver_stats,
94 drop_too_many_frags) },
95 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats,
96 drop_oversized_hdr) },
97 { " hdr err", offsetof(struct vmxnet3_tq_driver_stats,
98 drop_hdr_inspect_err) },
99 { " tso", offsetof(struct vmxnet3_tq_driver_stats,
100 drop_tso) },
101 { " ring full", offsetof(struct vmxnet3_tq_driver_stats,
102 tx_ring_full) },
103 { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats,
104 linearized) },
105 { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats,
106 copy_skb_header) },
107 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats,
108 oversized_hdr) },
d1a890fa
SB		 109};
110
111/* per rq stats maintained by the device */
112static const struct vmxnet3_stat_desc
113vmxnet3_rq_dev_stats[] = {
76d39dae
SB		 114 { "Rx Queue#", 0 },
115 { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) },
116 { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) },
117 { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
118 { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
119 { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
120 { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
121 { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
122 { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
123 { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
124 { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) },
d1a890fa
SB		 125};
126
127/* per rq stats maintained by the driver */
128static const struct vmxnet3_stat_desc
129vmxnet3_rq_driver_stats[] = {
130 /* description, offset */
76d39dae
SB		 131 { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
132 drop_total) },
133 { " err", offsetof(struct vmxnet3_rq_driver_stats,
134 drop_err) },
135 { " fcs", offsetof(struct vmxnet3_rq_driver_stats,
136 drop_fcs) },
137 { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
138 rx_buf_alloc_failure) },
d1a890fa
SB		 139};
140
141/* gloabl stats maintained by the driver */
142static const struct vmxnet3_stat_desc
143vmxnet3_global_stats[] = {
144 /* description, offset */
76d39dae 145 { "tx timeout count", offsetof(struct vmxnet3_adapter,
d1a890fa
SB		 146 tx_timeout_count) }
147};
148
149
150struct net_device_stats *
151vmxnet3_get_stats(struct net_device *netdev)
152{
153 struct vmxnet3_adapter *adapter;
154 struct vmxnet3_tq_driver_stats *drvTxStats;
155 struct vmxnet3_rq_driver_stats *drvRxStats;
156 struct UPT1_TxStats *devTxStats;
157 struct UPT1_RxStats *devRxStats;
158 struct net_device_stats *net_stats = &netdev->stats;
83d0feff 159 unsigned long flags;
09c5088e 160 int i;
d1a890fa
SB		 161
162 adapter = netdev_priv(netdev);
163
164 /* Collect the dev stats into the shared area */
83d0feff 165 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa 166 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
83d0feff 167 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa 168
d1a890fa 169 memset(net_stats, 0, sizeof(*net_stats));
09c5088e
SB		 170 for (i = 0; i < adapter->num_tx_queues; i++) {
171 devTxStats = &adapter->tqd_start[i].stats;
172 drvTxStats = &adapter->tx_queue[i].stats;
173 net_stats->tx_packets += devTxStats->ucastPktsTxOK +
174 devTxStats->mcastPktsTxOK +
175 devTxStats->bcastPktsTxOK;
176 net_stats->tx_bytes += devTxStats->ucastBytesTxOK +
177 devTxStats->mcastBytesTxOK +
178 devTxStats->bcastBytesTxOK;
179 net_stats->tx_errors += devTxStats->pktsTxError;
180 net_stats->tx_dropped += drvTxStats->drop_total;
181 }
d1a890fa 182
09c5088e
SB		 183 for (i = 0; i < adapter->num_rx_queues; i++) {
184 devRxStats = &adapter->rqd_start[i].stats;
185 drvRxStats = &adapter->rx_queue[i].stats;
186 net_stats->rx_packets += devRxStats->ucastPktsRxOK +
187 devRxStats->mcastPktsRxOK +
188 devRxStats->bcastPktsRxOK;
d1a890fa 189
09c5088e
SB		 190 net_stats->rx_bytes += devRxStats->ucastBytesRxOK +
191 devRxStats->mcastBytesRxOK +
192 devRxStats->bcastBytesRxOK;
d1a890fa 193
09c5088e
SB		 194 net_stats->rx_errors += devRxStats->pktsRxError;
195 net_stats->rx_dropped += drvRxStats->drop_total;
196 net_stats->multicast += devRxStats->mcastPktsRxOK;
197 }
d1a890fa
SB		 198 return net_stats;
199}
200
201static int
202vmxnet3_get_sset_count(struct net_device *netdev, int sset)
203{
76d39dae 204 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
d1a890fa
SB		 205 switch (sset) {
206 case ETH_SS_STATS:
76d39dae
SB		 207 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) +
208 ARRAY_SIZE(vmxnet3_tq_driver_stats)) *
209 adapter->num_tx_queues +
210 (ARRAY_SIZE(vmxnet3_rq_dev_stats) +
211 ARRAY_SIZE(vmxnet3_rq_driver_stats)) *
212 adapter->num_rx_queues +
d1a890fa
SB		 213 ARRAY_SIZE(vmxnet3_global_stats);
214 default:
215 return -EOPNOTSUPP;
216 }
217}
218
219
76d39dae
SB		 220/* Should be multiple of 4 */
221#define NUM_TX_REGS 8
222#define NUM_RX_REGS 12
223
d1a890fa
SB		 224static int
225vmxnet3_get_regs_len(struct net_device *netdev)
226{
76d39dae
SB		 227 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
228 return (adapter->num_tx_queues * NUM_TX_REGS * sizeof(u32) +
229 adapter->num_rx_queues * NUM_RX_REGS * sizeof(u32));
d1a890fa
SB		 230}
231
232
233static void
234vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
235{
236 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
237
238 strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
239 drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
240
241 strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
242 sizeof(drvinfo->version));
243 drvinfo->driver[sizeof(drvinfo->version) - 1] = '\0';
244
245 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
246 drvinfo->fw_version[sizeof(drvinfo->fw_version) - 1] = '\0';
247
248 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
249 ETHTOOL_BUSINFO_LEN);
250 drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
251 drvinfo->testinfo_len = 0;
252 drvinfo->eedump_len = 0;
253 drvinfo->regdump_len = vmxnet3_get_regs_len(netdev);
254}
255
256
257static void
258vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
259{
76d39dae 260 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
d1a890fa 261 if (stringset == ETH_SS_STATS) {
76d39dae
SB		 262 int i, j;
263 for (j = 0; j < adapter->num_tx_queues; j++) {
264 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
265 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
266 ETH_GSTRING_LEN);
267 buf += ETH_GSTRING_LEN;
268 }
269 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
270 i++) {
271 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
272 ETH_GSTRING_LEN);
273 buf += ETH_GSTRING_LEN;
274 }
d1a890fa 275 }
76d39dae
SB		 276
277 for (j = 0; j < adapter->num_rx_queues; j++) {
278 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
279 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
280 ETH_GSTRING_LEN);
281 buf += ETH_GSTRING_LEN;
282 }
283 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
284 i++) {
285 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
286 ETH_GSTRING_LEN);
287 buf += ETH_GSTRING_LEN;
288 }
d1a890fa 289 }
76d39dae 290
d1a890fa
SB		 291 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
292 memcpy(buf, vmxnet3_global_stats[i].desc,
293 ETH_GSTRING_LEN);
294 buf += ETH_GSTRING_LEN;
295 }
296 }
297}
298
d1a890fa 299static int
d92be4b1
SG		 300vmxnet3_set_flags(struct net_device *netdev, u32 data)
301{
d1a890fa
SB		 302 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
303 u8 lro_requested = (data & ETH_FLAG_LRO) == 0 ? 0 : 1;
304 u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;
83d0feff 305 unsigned long flags;
d1a890fa 306
673e63c6
SG		 307 if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO))
308 return -EINVAL;
d92be4b1 309
d1a890fa
SB		 310 if (lro_requested ^ lro_present) {
311 /* toggle the LRO feature*/
312 netdev->features ^= NETIF_F_LRO;
ebde6f8a
TJ		 313
314 /* Update private LRO flag */
315 adapter->lro = lro_requested;
d1a890fa
SB		 316
317 /* update harware LRO capability accordingly */
318 if (lro_requested)
ca802447 319 adapter->shared->devRead.misc.uptFeatures |=
3843e515 320 UPT1_F_LRO;
d1a890fa
SB		 321 else
322 adapter->shared->devRead.misc.uptFeatures &=
3843e515 323 ~UPT1_F_LRO;
83d0feff 324 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa
SB		 325 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
326 VMXNET3_CMD_UPDATE_FEATURE);
83d0feff 327 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 328 }
329 return 0;
330}
331
332static void
333vmxnet3_get_ethtool_stats(struct net_device *netdev,
334 struct ethtool_stats *stats, u64 *buf)
335{
336 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
83d0feff 337 unsigned long flags;
d1a890fa
SB		 338 u8 *base;
339 int i;
09c5088e 340 int j = 0;
d1a890fa 341
83d0feff 342 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa 343 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
83d0feff 344 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 345
346 /* this does assume each counter is 64-bit wide */
76d39dae
SB		 347 for (j = 0; j < adapter->num_tx_queues; j++) {
348 base = (u8 *)&adapter->tqd_start[j].stats;
349 *buf++ = (u64)j;
350 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
351 *buf++ = *(u64 *)(base +
352 vmxnet3_tq_dev_stats[i].offset);
353
354 base = (u8 *)&adapter->tx_queue[j].stats;
355 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
356 *buf++ = *(u64 *)(base +
357 vmxnet3_tq_driver_stats[i].offset);
358 }
d1a890fa 359
76d39dae
SB		 360 for (j = 0; j < adapter->num_tx_queues; j++) {
361 base = (u8 *)&adapter->rqd_start[j].stats;
362 *buf++ = (u64) j;
363 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
364 *buf++ = *(u64 *)(base +
365 vmxnet3_rq_dev_stats[i].offset);
366
367 base = (u8 *)&adapter->rx_queue[j].stats;
368 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
369 *buf++ = *(u64 *)(base +
370 vmxnet3_rq_driver_stats[i].offset);
371 }
d1a890fa
SB		 372
373 base = (u8 *)adapter;
374 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
375 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
376}
377
378
379static void
380vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
381{
382 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
383 u32 *buf = p;
76d39dae 384 int i = 0, j = 0;
d1a890fa
SB		 385
386 memset(p, 0, vmxnet3_get_regs_len(netdev));
387
388 regs->version = 1;
389
390 /* Update vmxnet3_get_regs_len if we want to dump more registers */
391
392 /* make each ring use multiple of 16 bytes */
76d39dae
SB		 393 for (i = 0; i < adapter->num_tx_queues; i++) {
394 buf[j++] = adapter->tx_queue[i].tx_ring.next2fill;
395 buf[j++] = adapter->tx_queue[i].tx_ring.next2comp;
396 buf[j++] = adapter->tx_queue[i].tx_ring.gen;
397 buf[j++] = 0;
398
399 buf[j++] = adapter->tx_queue[i].comp_ring.next2proc;
400 buf[j++] = adapter->tx_queue[i].comp_ring.gen;
401 buf[j++] = adapter->tx_queue[i].stopped;
402 buf[j++] = 0;
403 }
404
405 for (i = 0; i < adapter->num_rx_queues; i++) {
406 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill;
407 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp;
408 buf[j++] = adapter->rx_queue[i].rx_ring[0].gen;
409 buf[j++] = 0;
410
411 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill;
412 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp;
413 buf[j++] = adapter->rx_queue[i].rx_ring[1].gen;
414 buf[j++] = 0;
415
416 buf[j++] = adapter->rx_queue[i].comp_ring.next2proc;
417 buf[j++] = adapter->rx_queue[i].comp_ring.gen;
418 buf[j++] = 0;
419 buf[j++] = 0;
420 }
421
d1a890fa
SB		 422}
423
424
425static void
426vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
427{
428 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
429
430 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
431 wol->wolopts = adapter->wol;
432}
433
434
435static int
436vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
437{
438 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
439
440 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
441 WAKE_MAGICSECURE)) {
442 return -EOPNOTSUPP;
443 }
444
445 adapter->wol = wol->wolopts;
446
447 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
448
449 return 0;
450}
451
452
453static int
454vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
455{
456 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
457
458 ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
459 SUPPORTED_TP;
460 ecmd->advertising = ADVERTISED_TP;
461 ecmd->port = PORT_TP;
462 ecmd->transceiver = XCVR_INTERNAL;
463
464 if (adapter->link_speed) {
465 ecmd->speed = adapter->link_speed;
466 ecmd->duplex = DUPLEX_FULL;
467 } else {
468 ecmd->speed = -1;
469 ecmd->duplex = -1;
470 }
471 return 0;
472}
473
474
475static void
476vmxnet3_get_ringparam(struct net_device *netdev,
477 struct ethtool_ringparam *param)
478{
479 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
480
481 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
482 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
483 param->rx_mini_max_pending = 0;
484 param->rx_jumbo_max_pending = 0;
485
09c5088e
SB		 486 param->rx_pending = adapter->rx_queue[0].rx_ring[0].size *
487 adapter->num_rx_queues;
488 param->tx_pending = adapter->tx_queue[0].tx_ring.size *
489 adapter->num_tx_queues;
d1a890fa
SB		 490 param->rx_mini_pending = 0;
491 param->rx_jumbo_pending = 0;
492}
493
494
495static int
496vmxnet3_set_ringparam(struct net_device *netdev,
497 struct ethtool_ringparam *param)
498{
499 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
500 u32 new_tx_ring_size, new_rx_ring_size;
501 u32 sz;
502 int err = 0;
503
504 if (param->tx_pending == 0 || param->tx_pending >
505 VMXNET3_TX_RING_MAX_SIZE)
506 return -EINVAL;
507
508 if (param->rx_pending == 0 || param->rx_pending >
509 VMXNET3_RX_RING_MAX_SIZE)
510 return -EINVAL;
511
512
513 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
514 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
515 ~VMXNET3_RING_SIZE_MASK;
516 new_tx_ring_size = min_t(u32, new_tx_ring_size,
517 VMXNET3_TX_RING_MAX_SIZE);
518 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
519 VMXNET3_RING_SIZE_ALIGN) != 0)
520 return -EINVAL;
521
522 /* ring0 has to be a multiple of
523 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
524 */
525 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
526 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
527 new_rx_ring_size = min_t(u32, new_rx_ring_size,
528 VMXNET3_RX_RING_MAX_SIZE / sz * sz);
529 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
530 sz) != 0)
531 return -EINVAL;
532
09c5088e
SB		 533 if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size &&
534 new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) {
d1a890fa
SB		 535 return 0;
536 }
537
538 /*
539 * Reset_work may be in the middle of resetting the device, wait for its
540 * completion.
541 */
542 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
543 msleep(1);
544
545 if (netif_running(netdev)) {
546 vmxnet3_quiesce_dev(adapter);
547 vmxnet3_reset_dev(adapter);
548
549 /* recreate the rx queue and the tx queue based on the
550 * new sizes */
09c5088e
SB		 551 vmxnet3_tq_destroy_all(adapter);
552 vmxnet3_rq_destroy_all(adapter);
d1a890fa
SB		 553
554 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
555 new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE);
09c5088e 556
d1a890fa
SB		 557 if (err) {
558 /* failed, most likely because of OOM, try default
559 * size */
560 printk(KERN_ERR "%s: failed to apply new sizes, try the"
561 " default ones\n", netdev->name);
562 err = vmxnet3_create_queues(adapter,
563 VMXNET3_DEF_TX_RING_SIZE,
564 VMXNET3_DEF_RX_RING_SIZE,
565 VMXNET3_DEF_RX_RING_SIZE);
566 if (err) {
567 printk(KERN_ERR "%s: failed to create queues "
568 "with default sizes. Closing it\n",
569 netdev->name);
570 goto out;
571 }
572 }
573
574 err = vmxnet3_activate_dev(adapter);
575 if (err)
576 printk(KERN_ERR "%s: failed to re-activate, error %d."
577 " Closing it\n", netdev->name, err);
578 }
579
580out:
581 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
582 if (err)
583 vmxnet3_force_close(adapter);
584
585 return err;
586}
587
588
09c5088e
SB		 589static int
590vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
591 void *rules)
592{
593 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
594 switch (info->cmd) {
595 case ETHTOOL_GRXRINGS:
596 info->data = adapter->num_rx_queues;
597 return 0;
598 }
599 return -EOPNOTSUPP;
600}
601
e9248fbd 602#ifdef VMXNET3_RSS
09c5088e
SB		 603static int
604vmxnet3_get_rss_indir(struct net_device *netdev,
605 struct ethtool_rxfh_indir *p)
606{
607 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
608 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
609 unsigned int n = min_t(unsigned int, p->size, rssConf->indTableSize);
610
611 p->size = rssConf->indTableSize;
612 while (n--)
613 p->ring_index[n] = rssConf->indTable[n];
614 return 0;
615
616}
617
618static int
619vmxnet3_set_rss_indir(struct net_device *netdev,
620 const struct ethtool_rxfh_indir *p)
621{
622 unsigned int i;
83d0feff 623 unsigned long flags;
09c5088e
SB		 624 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
625 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
626
627 if (p->size != rssConf->indTableSize)
628 return -EINVAL;
629 for (i = 0; i < rssConf->indTableSize; i++) {
630 /*
631 * Return with error code if any of the queue indices
632 * is out of range
633 */
634 if (p->ring_index[i] < 0 ||
635 p->ring_index[i] >= adapter->num_rx_queues)
636 return -EINVAL;
637 }
638
639 for (i = 0; i < rssConf->indTableSize; i++)
640 rssConf->indTable[i] = p->ring_index[i];
641
83d0feff 642 spin_lock_irqsave(&adapter->cmd_lock, flags);
09c5088e
SB		 643 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
644 VMXNET3_CMD_UPDATE_RSSIDT);
83d0feff 645 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
09c5088e
SB		 646
647 return 0;
648
649}
e9248fbd 650#endif
09c5088e 651
d1a890fa
SB		 652static struct ethtool_ops vmxnet3_ethtool_ops = {
653 .get_settings = vmxnet3_get_settings,
654 .get_drvinfo = vmxnet3_get_drvinfo,
655 .get_regs_len = vmxnet3_get_regs_len,
656 .get_regs = vmxnet3_get_regs,
657 .get_wol = vmxnet3_get_wol,
658 .set_wol = vmxnet3_set_wol,
659 .get_link = ethtool_op_get_link,
660 .get_rx_csum = vmxnet3_get_rx_csum,
661 .set_rx_csum = vmxnet3_set_rx_csum,
662 .get_tx_csum = ethtool_op_get_tx_csum,
663 .set_tx_csum = ethtool_op_set_tx_hw_csum,
664 .get_sg = ethtool_op_get_sg,
665 .set_sg = ethtool_op_set_sg,
666 .get_tso = ethtool_op_get_tso,
667 .set_tso = ethtool_op_set_tso,
668 .get_strings = vmxnet3_get_strings,
cbf2d604 669 .get_flags = ethtool_op_get_flags,
d1a890fa
SB		 670 .set_flags = vmxnet3_set_flags,
671 .get_sset_count = vmxnet3_get_sset_count,
672 .get_ethtool_stats = vmxnet3_get_ethtool_stats,
673 .get_ringparam = vmxnet3_get_ringparam,
674 .set_ringparam = vmxnet3_set_ringparam,
09c5088e 675 .get_rxnfc = vmxnet3_get_rxnfc,
e9248fbd 676#ifdef VMXNET3_RSS
09c5088e
SB		 677 .get_rxfh_indir = vmxnet3_get_rss_indir,
678 .set_rxfh_indir = vmxnet3_set_rss_indir,
e9248fbd 679#endif
d1a890fa
SB		 680};
681
682void vmxnet3_set_ethtool_ops(struct net_device *netdev)
683{
684 SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops);
685}
kernel source for telekom puls (alcatel/mediatek)