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bridge: use MDBA_SET_ENTRY_MAX for maxtype in nlmsg_parse()
[deliverable/linux.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
d1a890fa
SB		 36/* per tq stats maintained by the device */
37static const struct vmxnet3_stat_desc
38vmxnet3_tq_dev_stats[] = {
39 /* description, offset */
76d39dae
SB		 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) },
d1a890fa
SB		 51};
52
53/* per tq stats maintained by the driver */
54static const struct vmxnet3_stat_desc
55vmxnet3_tq_driver_stats[] = {
56 /* description, offset */
76d39dae
SB		 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) },
d1a890fa
SB		 75};
76
77/* per rq stats maintained by the device */
78static const struct vmxnet3_stat_desc
79vmxnet3_rq_dev_stats[] = {
76d39dae
SB		 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) },
d1a890fa
SB		 91};
92
93/* per rq stats maintained by the driver */
94static const struct vmxnet3_stat_desc
95vmxnet3_rq_driver_stats[] = {
96 /* description, offset */
76d39dae
SB		 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) },
d1a890fa
SB		 105};
106
107/* gloabl stats maintained by the driver */
108static const struct vmxnet3_stat_desc
109vmxnet3_global_stats[] = {
110 /* description, offset */
76d39dae 111 { "tx timeout count", offsetof(struct vmxnet3_adapter,
d1a890fa
SB		 112 tx_timeout_count) }
113};
114
115
95305f6c 116struct rtnl_link_stats64 *
117vmxnet3_get_stats64(struct net_device *netdev,
118 struct rtnl_link_stats64 *stats)
d1a890fa
SB		 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;
83d0feff 125 unsigned long flags;
09c5088e 126 int i;
d1a890fa
SB		 127
128 adapter = netdev_priv(netdev);
129
130 /* Collect the dev stats into the shared area */
83d0feff 131 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa 132 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
83d0feff 133 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa 134
09c5088e
SB		 135 for (i = 0; i < adapter->num_tx_queues; i++) {
136 devTxStats = &adapter->tqd_start[i].stats;
137 drvTxStats = &adapter->tx_queue[i].stats;
95305f6c 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;
09c5088e 146 }
d1a890fa 147
09c5088e
SB		 148 for (i = 0; i < adapter->num_rx_queues; i++) {
149 devRxStats = &adapter->rqd_start[i].stats;
150 drvRxStats = &adapter->rx_queue[i].stats;
95305f6c 151 stats->rx_packets += devRxStats->ucastPktsRxOK +
152 devRxStats->mcastPktsRxOK +
153 devRxStats->bcastPktsRxOK;
d1a890fa 154
95305f6c 155 stats->rx_bytes += devRxStats->ucastBytesRxOK +
156 devRxStats->mcastBytesRxOK +
157 devRxStats->bcastBytesRxOK;
d1a890fa 158
95305f6c 159 stats->rx_errors += devRxStats->pktsRxError;
160 stats->rx_dropped += drvRxStats->drop_total;
161 stats->multicast += devRxStats->mcastPktsRxOK;
09c5088e 162 }
95305f6c 163
164 return stats;
d1a890fa
SB		 165}
166
167static int
168vmxnet3_get_sset_count(struct net_device *netdev, int sset)
169{
76d39dae 170 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
d1a890fa
SB		 171 switch (sset) {
172 case ETH_SS_STATS:
76d39dae
SB		 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 +
d1a890fa
SB		 179 ARRAY_SIZE(vmxnet3_global_stats);
180 default:
181 return -EOPNOTSUPP;
182 }
183}
184
185
76d39dae
SB		 186/* Should be multiple of 4 */
187#define NUM_TX_REGS 8
188#define NUM_RX_REGS 12
189
d1a890fa
SB		 190static int
191vmxnet3_get_regs_len(struct net_device *netdev)
192{
76d39dae
SB		 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));
d1a890fa
SB		 196}
197
198
199static void
200vmxnet3_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));
d1a890fa
SB		 205
206 strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
207 sizeof(drvinfo->version));
d1a890fa
SB		 208
209 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
7826d43f 210 sizeof(drvinfo->bus_info));
d1a890fa
SB		 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
218static void
219vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
220{
76d39dae 221 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
d1a890fa 222 if (stringset == ETH_SS_STATS) {
76d39dae
SB		 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 }
d1a890fa 236 }
76d39dae
SB		 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 }
d1a890fa 250 }
76d39dae 251
d1a890fa
SB		 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
c8f44aff 260int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
d92be4b1 261{
d1a890fa 262 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
83d0feff 263 unsigned long flags;
c8f44aff 264 netdev_features_t changed = features ^ netdev->features;
d1a890fa 265
f646968f
PM		 266 if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO |
267 NETIF_F_HW_VLAN_CTAG_RX)) {
a0d2730c
MM		 268 if (features & NETIF_F_RXCSUM)
269 adapter->shared->devRead.misc.uptFeatures |=
270 UPT1_F_RXCSUM;
271 else
272 adapter->shared->devRead.misc.uptFeatures &=
273 ~UPT1_F_RXCSUM;
d1a890fa
SB		 274
275 /* update harware LRO capability accordingly */
a0d2730c 276 if (features & NETIF_F_LRO)
ca802447 277 adapter->shared->devRead.misc.uptFeatures |=
3843e515 278 UPT1_F_LRO;
d1a890fa
SB		 279 else
280 adapter->shared->devRead.misc.uptFeatures &=
3843e515 281 ~UPT1_F_LRO;
a0d2730c 282
f646968f 283 if (features & NETIF_F_HW_VLAN_CTAG_RX)
72e85c45
JG		 284 adapter->shared->devRead.misc.uptFeatures |=
285 UPT1_F_RXVLAN;
286 else
287 adapter->shared->devRead.misc.uptFeatures &=
288 ~UPT1_F_RXVLAN;
289
83d0feff 290 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa
SB		 291 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
292 VMXNET3_CMD_UPDATE_FEATURE);
83d0feff 293 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 294 }
295 return 0;
296}
297
298static void
299vmxnet3_get_ethtool_stats(struct net_device *netdev,
300 struct ethtool_stats *stats, u64 *buf)
301{
302 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
83d0feff 303 unsigned long flags;
d1a890fa
SB		 304 u8 *base;
305 int i;
09c5088e 306 int j = 0;
d1a890fa 307
83d0feff 308 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa 309 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
83d0feff 310 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 311
312 /* this does assume each counter is 64-bit wide */
76d39dae
SB		 313 for (j = 0; j < adapter->num_tx_queues; j++) {
314 base = (u8 *)&adapter->tqd_start[j].stats;
315 *buf++ = (u64)j;
316 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
317 *buf++ = *(u64 *)(base +
318 vmxnet3_tq_dev_stats[i].offset);
319
320 base = (u8 *)&adapter->tx_queue[j].stats;
321 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
322 *buf++ = *(u64 *)(base +
323 vmxnet3_tq_driver_stats[i].offset);
324 }
d1a890fa 325
76d39dae
SB		 326 for (j = 0; j < adapter->num_tx_queues; j++) {
327 base = (u8 *)&adapter->rqd_start[j].stats;
328 *buf++ = (u64) j;
329 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
330 *buf++ = *(u64 *)(base +
331 vmxnet3_rq_dev_stats[i].offset);
332
333 base = (u8 *)&adapter->rx_queue[j].stats;
334 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
335 *buf++ = *(u64 *)(base +
336 vmxnet3_rq_driver_stats[i].offset);
337 }
d1a890fa
SB		 338
339 base = (u8 *)adapter;
340 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
341 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
342}
343
344
345static void
346vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
347{
348 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
349 u32 *buf = p;
76d39dae 350 int i = 0, j = 0;
d1a890fa
SB		 351
352 memset(p, 0, vmxnet3_get_regs_len(netdev));
353
354 regs->version = 1;
355
356 /* Update vmxnet3_get_regs_len if we want to dump more registers */
357
358 /* make each ring use multiple of 16 bytes */
76d39dae
SB		 359 for (i = 0; i < adapter->num_tx_queues; i++) {
360 buf[j++] = adapter->tx_queue[i].tx_ring.next2fill;
361 buf[j++] = adapter->tx_queue[i].tx_ring.next2comp;
362 buf[j++] = adapter->tx_queue[i].tx_ring.gen;
363 buf[j++] = 0;
364
365 buf[j++] = adapter->tx_queue[i].comp_ring.next2proc;
366 buf[j++] = adapter->tx_queue[i].comp_ring.gen;
367 buf[j++] = adapter->tx_queue[i].stopped;
368 buf[j++] = 0;
369 }
370
371 for (i = 0; i < adapter->num_rx_queues; i++) {
372 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill;
373 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp;
374 buf[j++] = adapter->rx_queue[i].rx_ring[0].gen;
375 buf[j++] = 0;
376
377 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill;
378 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp;
379 buf[j++] = adapter->rx_queue[i].rx_ring[1].gen;
380 buf[j++] = 0;
381
382 buf[j++] = adapter->rx_queue[i].comp_ring.next2proc;
383 buf[j++] = adapter->rx_queue[i].comp_ring.gen;
384 buf[j++] = 0;
385 buf[j++] = 0;
386 }
387
d1a890fa
SB		 388}
389
390
391static void
392vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
393{
394 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
395
396 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
397 wol->wolopts = adapter->wol;
398}
399
400
401static int
402vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
403{
404 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
405
406 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
407 WAKE_MAGICSECURE)) {
408 return -EOPNOTSUPP;
409 }
410
411 adapter->wol = wol->wolopts;
412
413 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
414
415 return 0;
416}
417
418
419static int
420vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
421{
422 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
423
424 ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
425 SUPPORTED_TP;
426 ecmd->advertising = ADVERTISED_TP;
427 ecmd->port = PORT_TP;
428 ecmd->transceiver = XCVR_INTERNAL;
429
430 if (adapter->link_speed) {
70739497 431 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
d1a890fa
SB		 432 ecmd->duplex = DUPLEX_FULL;
433 } else {
537fae01
JP		 434 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
435 ecmd->duplex = DUPLEX_UNKNOWN;
d1a890fa
SB		 436 }
437 return 0;
438}
439
440
441static void
442vmxnet3_get_ringparam(struct net_device *netdev,
443 struct ethtool_ringparam *param)
444{
445 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
446
447 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
448 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
449 param->rx_mini_max_pending = 0;
53831aa1 450 param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
d1a890fa 451
f00e2b0a
NH		 452 param->rx_pending = adapter->rx_ring_size;
453 param->tx_pending = adapter->tx_ring_size;
d1a890fa 454 param->rx_mini_pending = 0;
53831aa1 455 param->rx_jumbo_pending = adapter->rx_ring2_size;
d1a890fa
SB		 456}
457
458
459static int
460vmxnet3_set_ringparam(struct net_device *netdev,
461 struct ethtool_ringparam *param)
462{
463 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
53831aa1 464 u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
d1a890fa
SB		 465 u32 sz;
466 int err = 0;
467
468 if (param->tx_pending == 0 || param->tx_pending >
469 VMXNET3_TX_RING_MAX_SIZE)
470 return -EINVAL;
471
472 if (param->rx_pending == 0 || param->rx_pending >
473 VMXNET3_RX_RING_MAX_SIZE)
474 return -EINVAL;
475
53831aa1
SK		 476 if (param->rx_jumbo_pending == 0 ||
477 param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
478 return -EINVAL;
479
e4fabf2b
BD		 480 /* if adapter not yet initialized, do nothing */
481 if (adapter->rx_buf_per_pkt == 0) {
482 netdev_err(netdev, "adapter not completely initialized, "
483 "ring size cannot be changed yet\n");
484 return -EOPNOTSUPP;
485 }
d1a890fa
SB		 486
487 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
488 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
489 ~VMXNET3_RING_SIZE_MASK;
490 new_tx_ring_size = min_t(u32, new_tx_ring_size,
491 VMXNET3_TX_RING_MAX_SIZE);
492 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
493 VMXNET3_RING_SIZE_ALIGN) != 0)
494 return -EINVAL;
495
496 /* ring0 has to be a multiple of
497 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
498 */
499 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
500 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
501 new_rx_ring_size = min_t(u32, new_rx_ring_size,
502 VMXNET3_RX_RING_MAX_SIZE / sz * sz);
503 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
504 sz) != 0)
505 return -EINVAL;
506
53831aa1
SK		 507 /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
508 new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
509 ~VMXNET3_RING_SIZE_MASK;
510 new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
511 VMXNET3_RX_RING2_MAX_SIZE);
512
513 if (new_tx_ring_size == adapter->tx_ring_size &&
514 new_rx_ring_size == adapter->rx_ring_size &&
515 new_rx_ring2_size == adapter->rx_ring2_size) {
d1a890fa
SB		 516 return 0;
517 }
518
519 /*
520 * Reset_work may be in the middle of resetting the device, wait for its
521 * completion.
522 */
523 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
524 msleep(1);
525
526 if (netif_running(netdev)) {
527 vmxnet3_quiesce_dev(adapter);
528 vmxnet3_reset_dev(adapter);
529
530 /* recreate the rx queue and the tx queue based on the
531 * new sizes */
09c5088e
SB		 532 vmxnet3_tq_destroy_all(adapter);
533 vmxnet3_rq_destroy_all(adapter);
d1a890fa
SB		 534
535 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
53831aa1 536 new_rx_ring_size, new_rx_ring2_size);
09c5088e 537
d1a890fa
SB		 538 if (err) {
539 /* failed, most likely because of OOM, try default
540 * size */
204a6e65
SH		 541 netdev_err(netdev, "failed to apply new sizes, "
542 "try the default ones\n");
f00e2b0a 543 new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
53831aa1 544 new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
f00e2b0a 545 new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
d1a890fa 546 err = vmxnet3_create_queues(adapter,
f00e2b0a
NH		 547 new_tx_ring_size,
548 new_rx_ring_size,
53831aa1 549 new_rx_ring2_size);
d1a890fa 550 if (err) {
204a6e65
SH		 551 netdev_err(netdev, "failed to create queues "
552 "with default sizes. Closing it\n");
d1a890fa
SB		 553 goto out;
554 }
555 }
556
557 err = vmxnet3_activate_dev(adapter);
558 if (err)
204a6e65
SH		 559 netdev_err(netdev, "failed to re-activate, error %d."
560 " Closing it\n", err);
d1a890fa 561 }
f00e2b0a
NH		 562 adapter->tx_ring_size = new_tx_ring_size;
563 adapter->rx_ring_size = new_rx_ring_size;
53831aa1 564 adapter->rx_ring2_size = new_rx_ring2_size;
d1a890fa
SB		 565
566out:
567 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
568 if (err)
569 vmxnet3_force_close(adapter);
570
571 return err;
572}
573
574
09c5088e
SB		 575static int
576vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
815c7db5 577 u32 *rules)
09c5088e
SB		 578{
579 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
580 switch (info->cmd) {
581 case ETHTOOL_GRXRINGS:
582 info->data = adapter->num_rx_queues;
583 return 0;
584 }
585 return -EOPNOTSUPP;
586}
587
e9248fbd 588#ifdef VMXNET3_RSS
7850f63f
BH		 589static u32
590vmxnet3_get_rss_indir_size(struct net_device *netdev)
591{
592 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
593 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
594
595 return rssConf->indTableSize;
596}
597
09c5088e 598static int
892311f6 599vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
09c5088e
SB		 600{
601 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
602 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
7850f63f 603 unsigned int n = rssConf->indTableSize;
09c5088e 604
892311f6
EP		 605 if (hfunc)
606 *hfunc = ETH_RSS_HASH_TOP;
607 if (!p)
608 return 0;
09c5088e 609 while (n--)
7850f63f 610 p[n] = rssConf->indTable[n];
09c5088e
SB		 611 return 0;
612
613}
614
615static int
892311f6
EP		 616vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
617 const u8 hfunc)
09c5088e
SB		 618{
619 unsigned int i;
83d0feff 620 unsigned long flags;
09c5088e
SB		 621 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
622 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
623
892311f6
EP		 624 /* We do not allow change in unsupported parameters */
625 if (key ||
626 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
627 return -EOPNOTSUPP;
628 if (!p)
629 return 0;
09c5088e 630 for (i = 0; i < rssConf->indTableSize; i++)
7850f63f 631 rssConf->indTable[i] = p[i];
09c5088e 632
83d0feff 633 spin_lock_irqsave(&adapter->cmd_lock, flags);
09c5088e
SB		 634 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
635 VMXNET3_CMD_UPDATE_RSSIDT);
83d0feff 636 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
09c5088e
SB		 637
638 return 0;
639
640}
e9248fbd 641#endif
09c5088e 642
c8b88efc 643static const struct ethtool_ops vmxnet3_ethtool_ops = {
d1a890fa
SB		 644 .get_settings = vmxnet3_get_settings,
645 .get_drvinfo = vmxnet3_get_drvinfo,
646 .get_regs_len = vmxnet3_get_regs_len,
647 .get_regs = vmxnet3_get_regs,
648 .get_wol = vmxnet3_get_wol,
649 .set_wol = vmxnet3_set_wol,
650 .get_link = ethtool_op_get_link,
d1a890fa 651 .get_strings = vmxnet3_get_strings,
d1a890fa
SB		 652 .get_sset_count = vmxnet3_get_sset_count,
653 .get_ethtool_stats = vmxnet3_get_ethtool_stats,
654 .get_ringparam = vmxnet3_get_ringparam,
655 .set_ringparam = vmxnet3_set_ringparam,
09c5088e 656 .get_rxnfc = vmxnet3_get_rxnfc,
e9248fbd 657#ifdef VMXNET3_RSS
7850f63f 658 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
fe62d001
BH		 659 .get_rxfh = vmxnet3_get_rss,
660 .set_rxfh = vmxnet3_set_rss,
e9248fbd 661#endif
d1a890fa
SB		 662};
663
664void vmxnet3_set_ethtool_ops(struct net_device *netdev)
665{
7ad24ea4 666 netdev->ethtool_ops = &vmxnet3_ethtool_ops;
d1a890fa 667}
Linux kernel - Deliverables
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