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vmxnet3: allow variable length transmit data ring buffer
[deliverable/linux.git] / drivers / net / vmxnet3 / vmxnet3_ethtool.c
CommitLineData
d1a890fa
SB		 1/*
2 * Linux driver for VMware's vmxnet3 ethernet NIC.
3 *
190af10f 4 * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
d1a890fa
SB		 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 *
190af10f 23 * Maintained by: pv-drivers@vmware.com
d1a890fa
SB		 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
7887456e 107/* global stats maintained by the driver */
d1a890fa
SB		 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
b6bd9b54
SK		 186/* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
187 * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
188 * Therefore, if any registers are added, removed or modified, then a version
189 * bump and a corresponding change in the vmxnet3 support for ethtool(8)
190 * --register-dump would be required.
191 */
d1a890fa
SB		 192static int
193vmxnet3_get_regs_len(struct net_device *netdev)
194{
76d39dae 195 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
b6bd9b54
SK		 196
197 return ((9 /* BAR1 registers */ +
198 (1 + adapter->intr.num_intrs) +
199 (1 + adapter->num_tx_queues * 17 /* Tx queue registers */) +
200 (1 + adapter->num_rx_queues * 23 /* Rx queue registers */)) *
201 sizeof(u32));
d1a890fa
SB		 202}
203
204
205static void
206vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
207{
208 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
209
210 strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
d1a890fa
SB		 211
212 strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
213 sizeof(drvinfo->version));
d1a890fa
SB		 214
215 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
7826d43f 216 sizeof(drvinfo->bus_info));
d1a890fa
SB		 217}
218
219
220static void
221vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
222{
76d39dae 223 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
d1a890fa 224 if (stringset == ETH_SS_STATS) {
76d39dae
SB		 225 int i, j;
226 for (j = 0; j < adapter->num_tx_queues; j++) {
227 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
228 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
229 ETH_GSTRING_LEN);
230 buf += ETH_GSTRING_LEN;
231 }
232 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
233 i++) {
234 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
235 ETH_GSTRING_LEN);
236 buf += ETH_GSTRING_LEN;
237 }
d1a890fa 238 }
76d39dae
SB		 239
240 for (j = 0; j < adapter->num_rx_queues; j++) {
241 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
242 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
243 ETH_GSTRING_LEN);
244 buf += ETH_GSTRING_LEN;
245 }
246 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
247 i++) {
248 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
249 ETH_GSTRING_LEN);
250 buf += ETH_GSTRING_LEN;
251 }
d1a890fa 252 }
76d39dae 253
d1a890fa
SB		 254 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
255 memcpy(buf, vmxnet3_global_stats[i].desc,
256 ETH_GSTRING_LEN);
257 buf += ETH_GSTRING_LEN;
258 }
259 }
260}
261
c8f44aff 262int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
d92be4b1 263{
d1a890fa 264 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
83d0feff 265 unsigned long flags;
c8f44aff 266 netdev_features_t changed = features ^ netdev->features;
d1a890fa 267
f646968f
PM		 268 if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO |
269 NETIF_F_HW_VLAN_CTAG_RX)) {
a0d2730c
MM		 270 if (features & NETIF_F_RXCSUM)
271 adapter->shared->devRead.misc.uptFeatures |=
272 UPT1_F_RXCSUM;
273 else
274 adapter->shared->devRead.misc.uptFeatures &=
275 ~UPT1_F_RXCSUM;
d1a890fa 276
7887456e 277 /* update hardware LRO capability accordingly */
a0d2730c 278 if (features & NETIF_F_LRO)
ca802447 279 adapter->shared->devRead.misc.uptFeatures |=
3843e515 280 UPT1_F_LRO;
d1a890fa
SB		 281 else
282 adapter->shared->devRead.misc.uptFeatures &=
3843e515 283 ~UPT1_F_LRO;
a0d2730c 284
f646968f 285 if (features & NETIF_F_HW_VLAN_CTAG_RX)
72e85c45
JG		 286 adapter->shared->devRead.misc.uptFeatures |=
287 UPT1_F_RXVLAN;
288 else
289 adapter->shared->devRead.misc.uptFeatures &=
290 ~UPT1_F_RXVLAN;
291
83d0feff 292 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa
SB		 293 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
294 VMXNET3_CMD_UPDATE_FEATURE);
83d0feff 295 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 296 }
297 return 0;
298}
299
300static void
301vmxnet3_get_ethtool_stats(struct net_device *netdev,
302 struct ethtool_stats *stats, u64 *buf)
303{
304 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
83d0feff 305 unsigned long flags;
d1a890fa
SB		 306 u8 *base;
307 int i;
09c5088e 308 int j = 0;
d1a890fa 309
83d0feff 310 spin_lock_irqsave(&adapter->cmd_lock, flags);
d1a890fa 311 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
83d0feff 312 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
d1a890fa
SB		 313
314 /* this does assume each counter is 64-bit wide */
76d39dae
SB		 315 for (j = 0; j < adapter->num_tx_queues; j++) {
316 base = (u8 *)&adapter->tqd_start[j].stats;
317 *buf++ = (u64)j;
318 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
319 *buf++ = *(u64 *)(base +
320 vmxnet3_tq_dev_stats[i].offset);
321
322 base = (u8 *)&adapter->tx_queue[j].stats;
323 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
324 *buf++ = *(u64 *)(base +
325 vmxnet3_tq_driver_stats[i].offset);
326 }
d1a890fa 327
331b9ab8 328 for (j = 0; j < adapter->num_rx_queues; j++) {
76d39dae
SB		 329 base = (u8 *)&adapter->rqd_start[j].stats;
330 *buf++ = (u64) j;
331 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
332 *buf++ = *(u64 *)(base +
333 vmxnet3_rq_dev_stats[i].offset);
334
335 base = (u8 *)&adapter->rx_queue[j].stats;
336 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
337 *buf++ = *(u64 *)(base +
338 vmxnet3_rq_driver_stats[i].offset);
339 }
d1a890fa
SB		 340
341 base = (u8 *)adapter;
342 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
343 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
344}
345
346
b6bd9b54
SK		 347/* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
348 * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
349 * Therefore, if any registers are added, removed or modified, then a version
350 * bump and a corresponding change in the vmxnet3 support for ethtool(8)
351 * --register-dump would be required.
352 */
d1a890fa
SB		 353static void
354vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
355{
356 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
357 u32 *buf = p;
76d39dae 358 int i = 0, j = 0;
d1a890fa
SB		 359
360 memset(p, 0, vmxnet3_get_regs_len(netdev));
361
b6bd9b54 362 regs->version = 2;
d1a890fa
SB		 363
364 /* Update vmxnet3_get_regs_len if we want to dump more registers */
365
b6bd9b54
SK		 366 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
367 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS);
368 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL);
369 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH);
370 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
371 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL);
372 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH);
373 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR);
374 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR);
375
376 buf[j++] = adapter->intr.num_intrs;
377 for (i = 0; i < adapter->intr.num_intrs; i++) {
378 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR
379 + i * VMXNET3_REG_ALIGN);
380 }
76d39dae 381
b6bd9b54
SK		 382 buf[j++] = adapter->num_tx_queues;
383 for (i = 0; i < adapter->num_tx_queues; i++) {
384 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i];
385
386 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD +
387 i * VMXNET3_REG_ALIGN);
388
389 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA);
390 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA);
391 buf[j++] = tq->tx_ring.size;
392 buf[j++] = tq->tx_ring.next2fill;
393 buf[j++] = tq->tx_ring.next2comp;
394 buf[j++] = tq->tx_ring.gen;
395
396 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
397 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
398 buf[j++] = tq->data_ring.size;
3c8b3efc 399 buf[j++] = tq->txdata_desc_size;
b6bd9b54
SK		 400
401 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
402 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
403 buf[j++] = tq->comp_ring.size;
404 buf[j++] = tq->comp_ring.next2proc;
405 buf[j++] = tq->comp_ring.gen;
406
407 buf[j++] = tq->stopped;
76d39dae
SB		 408 }
409
b6bd9b54 410 buf[j++] = adapter->num_rx_queues;
76d39dae 411 for (i = 0; i < adapter->num_rx_queues; i++) {
b6bd9b54
SK		 412 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
413
414 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD +
415 i * VMXNET3_REG_ALIGN);
416 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 +
417 i * VMXNET3_REG_ALIGN);
418
419 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA);
420 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA);
421 buf[j++] = rq->rx_ring[0].size;
422 buf[j++] = rq->rx_ring[0].next2fill;
423 buf[j++] = rq->rx_ring[0].next2comp;
424 buf[j++] = rq->rx_ring[0].gen;
425
426 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA);
427 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA);
428 buf[j++] = rq->rx_ring[1].size;
429 buf[j++] = rq->rx_ring[1].next2fill;
430 buf[j++] = rq->rx_ring[1].next2comp;
431 buf[j++] = rq->rx_ring[1].gen;
432
433 /* receive data ring */
76d39dae 434 buf[j++] = 0;
76d39dae 435 buf[j++] = 0;
76d39dae
SB		 436 buf[j++] = 0;
437 buf[j++] = 0;
76d39dae 438
b6bd9b54
SK		 439 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
440 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
441 buf[j++] = rq->comp_ring.size;
442 buf[j++] = rq->comp_ring.next2proc;
443 buf[j++] = rq->comp_ring.gen;
444 }
d1a890fa
SB		 445}
446
447
448static void
449vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
450{
451 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
452
453 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
454 wol->wolopts = adapter->wol;
455}
456
457
458static int
459vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
460{
461 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
462
463 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
464 WAKE_MAGICSECURE)) {
465 return -EOPNOTSUPP;
466 }
467
468 adapter->wol = wol->wolopts;
469
470 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
471
472 return 0;
473}
474
475
476static int
477vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
478{
479 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
480
481 ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
482 SUPPORTED_TP;
483 ecmd->advertising = ADVERTISED_TP;
484 ecmd->port = PORT_TP;
485 ecmd->transceiver = XCVR_INTERNAL;
486
487 if (adapter->link_speed) {
70739497 488 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
d1a890fa
SB		 489 ecmd->duplex = DUPLEX_FULL;
490 } else {
537fae01
JP		 491 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
492 ecmd->duplex = DUPLEX_UNKNOWN;
d1a890fa
SB		 493 }
494 return 0;
495}
496
497
498static void
499vmxnet3_get_ringparam(struct net_device *netdev,
500 struct ethtool_ringparam *param)
501{
502 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
503
504 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
505 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
506 param->rx_mini_max_pending = 0;
53831aa1 507 param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
d1a890fa 508
f00e2b0a
NH		 509 param->rx_pending = adapter->rx_ring_size;
510 param->tx_pending = adapter->tx_ring_size;
d1a890fa 511 param->rx_mini_pending = 0;
53831aa1 512 param->rx_jumbo_pending = adapter->rx_ring2_size;
d1a890fa
SB		 513}
514
515
516static int
517vmxnet3_set_ringparam(struct net_device *netdev,
518 struct ethtool_ringparam *param)
519{
520 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
53831aa1 521 u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
d1a890fa
SB		 522 u32 sz;
523 int err = 0;
524
525 if (param->tx_pending == 0 || param->tx_pending >
526 VMXNET3_TX_RING_MAX_SIZE)
527 return -EINVAL;
528
529 if (param->rx_pending == 0 || param->rx_pending >
530 VMXNET3_RX_RING_MAX_SIZE)
531 return -EINVAL;
532
53831aa1
SK		 533 if (param->rx_jumbo_pending == 0 ||
534 param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
535 return -EINVAL;
536
e4fabf2b
BD		 537 /* if adapter not yet initialized, do nothing */
538 if (adapter->rx_buf_per_pkt == 0) {
539 netdev_err(netdev, "adapter not completely initialized, "
540 "ring size cannot be changed yet\n");
541 return -EOPNOTSUPP;
542 }
d1a890fa
SB		 543
544 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
545 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
546 ~VMXNET3_RING_SIZE_MASK;
547 new_tx_ring_size = min_t(u32, new_tx_ring_size,
548 VMXNET3_TX_RING_MAX_SIZE);
549 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
550 VMXNET3_RING_SIZE_ALIGN) != 0)
551 return -EINVAL;
552
553 /* ring0 has to be a multiple of
554 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
555 */
556 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
557 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
558 new_rx_ring_size = min_t(u32, new_rx_ring_size,
559 VMXNET3_RX_RING_MAX_SIZE / sz * sz);
560 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
561 sz) != 0)
562 return -EINVAL;
563
53831aa1
SK		 564 /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
565 new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
566 ~VMXNET3_RING_SIZE_MASK;
567 new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
568 VMXNET3_RX_RING2_MAX_SIZE);
569
570 if (new_tx_ring_size == adapter->tx_ring_size &&
571 new_rx_ring_size == adapter->rx_ring_size &&
572 new_rx_ring2_size == adapter->rx_ring2_size) {
d1a890fa
SB		 573 return 0;
574 }
575
576 /*
577 * Reset_work may be in the middle of resetting the device, wait for its
578 * completion.
579 */
580 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
581 msleep(1);
582
583 if (netif_running(netdev)) {
584 vmxnet3_quiesce_dev(adapter);
585 vmxnet3_reset_dev(adapter);
586
587 /* recreate the rx queue and the tx queue based on the
588 * new sizes */
09c5088e
SB		 589 vmxnet3_tq_destroy_all(adapter);
590 vmxnet3_rq_destroy_all(adapter);
d1a890fa
SB		 591
592 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
3c8b3efc
SK		 593 new_rx_ring_size, new_rx_ring2_size,
594 adapter->txdata_desc_size);
09c5088e 595
d1a890fa
SB		 596 if (err) {
597 /* failed, most likely because of OOM, try default
598 * size */
204a6e65
SH		 599 netdev_err(netdev, "failed to apply new sizes, "
600 "try the default ones\n");
f00e2b0a 601 new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
53831aa1 602 new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
f00e2b0a 603 new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
d1a890fa 604 err = vmxnet3_create_queues(adapter,
f00e2b0a
NH		 605 new_tx_ring_size,
606 new_rx_ring_size,
3c8b3efc
SK		 607 new_rx_ring2_size,
608 adapter->txdata_desc_size);
d1a890fa 609 if (err) {
204a6e65
SH		 610 netdev_err(netdev, "failed to create queues "
611 "with default sizes. Closing it\n");
d1a890fa
SB		 612 goto out;
613 }
614 }
615
616 err = vmxnet3_activate_dev(adapter);
617 if (err)
204a6e65
SH		 618 netdev_err(netdev, "failed to re-activate, error %d."
619 " Closing it\n", err);
d1a890fa 620 }
f00e2b0a
NH		 621 adapter->tx_ring_size = new_tx_ring_size;
622 adapter->rx_ring_size = new_rx_ring_size;
53831aa1 623 adapter->rx_ring2_size = new_rx_ring2_size;
d1a890fa
SB		 624
625out:
626 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
627 if (err)
628 vmxnet3_force_close(adapter);
629
630 return err;
631}
632
633
09c5088e
SB		 634static int
635vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
815c7db5 636 u32 *rules)
09c5088e
SB		 637{
638 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
639 switch (info->cmd) {
640 case ETHTOOL_GRXRINGS:
641 info->data = adapter->num_rx_queues;
642 return 0;
643 }
644 return -EOPNOTSUPP;
645}
646
e9248fbd 647#ifdef VMXNET3_RSS
7850f63f
BH		 648static u32
649vmxnet3_get_rss_indir_size(struct net_device *netdev)
650{
651 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
652 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
653
654 return rssConf->indTableSize;
655}
656
09c5088e 657static int
892311f6 658vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
09c5088e
SB		 659{
660 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
661 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
7850f63f 662 unsigned int n = rssConf->indTableSize;
09c5088e 663
892311f6
EP		 664 if (hfunc)
665 *hfunc = ETH_RSS_HASH_TOP;
666 if (!p)
667 return 0;
09c5088e 668 while (n--)
7850f63f 669 p[n] = rssConf->indTable[n];
09c5088e
SB		 670 return 0;
671
672}
673
674static int
892311f6
EP		 675vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
676 const u8 hfunc)
09c5088e
SB		 677{
678 unsigned int i;
83d0feff 679 unsigned long flags;
09c5088e
SB		 680 struct vmxnet3_adapter *adapter = netdev_priv(netdev);
681 struct UPT1_RSSConf *rssConf = adapter->rss_conf;
682
892311f6
EP		 683 /* We do not allow change in unsupported parameters */
684 if (key ||
685 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
686 return -EOPNOTSUPP;
687 if (!p)
688 return 0;
09c5088e 689 for (i = 0; i < rssConf->indTableSize; i++)
7850f63f 690 rssConf->indTable[i] = p[i];
09c5088e 691
83d0feff 692 spin_lock_irqsave(&adapter->cmd_lock, flags);
09c5088e
SB		 693 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
694 VMXNET3_CMD_UPDATE_RSSIDT);
83d0feff 695 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
09c5088e
SB		 696
697 return 0;
698
699}
e9248fbd 700#endif
09c5088e 701
c8b88efc 702static const struct ethtool_ops vmxnet3_ethtool_ops = {
d1a890fa
SB		 703 .get_settings = vmxnet3_get_settings,
704 .get_drvinfo = vmxnet3_get_drvinfo,
705 .get_regs_len = vmxnet3_get_regs_len,
706 .get_regs = vmxnet3_get_regs,
707 .get_wol = vmxnet3_get_wol,
708 .set_wol = vmxnet3_set_wol,
709 .get_link = ethtool_op_get_link,
d1a890fa 710 .get_strings = vmxnet3_get_strings,
d1a890fa
SB		 711 .get_sset_count = vmxnet3_get_sset_count,
712 .get_ethtool_stats = vmxnet3_get_ethtool_stats,
713 .get_ringparam = vmxnet3_get_ringparam,
714 .set_ringparam = vmxnet3_set_ringparam,
09c5088e 715 .get_rxnfc = vmxnet3_get_rxnfc,
e9248fbd 716#ifdef VMXNET3_RSS
7850f63f 717 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
fe62d001
BH		 718 .get_rxfh = vmxnet3_get_rss,
719 .set_rxfh = vmxnet3_set_rss,
e9248fbd 720#endif
d1a890fa
SB		 721};
722
723void vmxnet3_set_ethtool_ops(struct net_device *netdev)
724{
7ad24ea4 725 netdev->ethtool_ops = &vmxnet3_ethtool_ops;
d1a890fa 726}
Linux kernel - Deliverables
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