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Merge branch 'topic/asoc' into for-linus
[deliverable/linux.git] / drivers / net / igbvf / ethtool.c
CommitLineData
d4e0fe01
AD		 1/*******************************************************************************
2
3 Intel(R) 82576 Virtual Function Linux driver
2c20ebba 4 Copyright(c) 2009 - 2010 Intel Corporation.
d4e0fe01
AD		 5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25
26*******************************************************************************/
27
28/* ethtool support for igbvf */
29
30#include <linux/netdevice.h>
31#include <linux/ethtool.h>
32#include <linux/pci.h>
33#include <linux/vmalloc.h>
34#include <linux/delay.h>
35
36#include "igbvf.h"
37#include <linux/if_vlan.h>
38
39
40struct igbvf_stats {
41 char stat_string[ETH_GSTRING_LEN];
42 int sizeof_stat;
43 int stat_offset;
44 int base_stat_offset;
45};
46
47#define IGBVF_STAT(current, base) \
48 sizeof(((struct igbvf_adapter *)0)->current), \
49 offsetof(struct igbvf_adapter, current), \
50 offsetof(struct igbvf_adapter, base)
51
52static const struct igbvf_stats igbvf_gstrings_stats[] = {
53 { "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) },
54 { "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) },
55 { "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
56 { "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
57 { "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
58 { "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
59 { "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
60 { "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
61 { "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
62 { "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
63 { "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
64 { "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
65 { "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) },
66};
67
68#define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats)
69
70static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = {
71 "Link test (on/offline)"
72};
73
74#define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test)
75
76static int igbvf_get_settings(struct net_device *netdev,
77 struct ethtool_cmd *ecmd)
78{
79 struct igbvf_adapter *adapter = netdev_priv(netdev);
80 struct e1000_hw *hw = &adapter->hw;
81 u32 status;
82
83 ecmd->supported = SUPPORTED_1000baseT_Full;
84
85 ecmd->advertising = ADVERTISED_1000baseT_Full;
86
87 ecmd->port = -1;
88 ecmd->transceiver = XCVR_DUMMY1;
89
90 status = er32(STATUS);
91 if (status & E1000_STATUS_LU) {
92 if (status & E1000_STATUS_SPEED_1000)
93 ecmd->speed = 1000;
94 else if (status & E1000_STATUS_SPEED_100)
95 ecmd->speed = 100;
96 else
97 ecmd->speed = 10;
98
99 if (status & E1000_STATUS_FD)
100 ecmd->duplex = DUPLEX_FULL;
101 else
102 ecmd->duplex = DUPLEX_HALF;
103 } else {
104 ecmd->speed = -1;
105 ecmd->duplex = -1;
106 }
107
108 ecmd->autoneg = AUTONEG_DISABLE;
109
110 return 0;
111}
112
d4e0fe01
AD		 113static int igbvf_set_settings(struct net_device *netdev,
114 struct ethtool_cmd *ecmd)
115{
116 return -EOPNOTSUPP;
117}
118
119static void igbvf_get_pauseparam(struct net_device *netdev,
120 struct ethtool_pauseparam *pause)
121{
122 return;
123}
124
125static int igbvf_set_pauseparam(struct net_device *netdev,
126 struct ethtool_pauseparam *pause)
127{
128 return -EOPNOTSUPP;
129}
130
0364d6fd
AD		 131static u32 igbvf_get_rx_csum(struct net_device *netdev)
132{
133 struct igbvf_adapter *adapter = netdev_priv(netdev);
134 return !(adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED);
135}
136
137static int igbvf_set_rx_csum(struct net_device *netdev, u32 data)
138{
139 struct igbvf_adapter *adapter = netdev_priv(netdev);
140
141 if (data)
142 adapter->flags &= ~IGBVF_FLAG_RX_CSUM_DISABLED;
143 else
144 adapter->flags |= IGBVF_FLAG_RX_CSUM_DISABLED;
145
146 return 0;
147}
148
d4e0fe01
AD		 149static u32 igbvf_get_tx_csum(struct net_device *netdev)
150{
807540ba 151 return (netdev->features & NETIF_F_IP_CSUM) != 0;
d4e0fe01
AD		 152}
153
154static int igbvf_set_tx_csum(struct net_device *netdev, u32 data)
155{
156 if (data)
157 netdev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
158 else
159 netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
160 return 0;
161}
162
163static int igbvf_set_tso(struct net_device *netdev, u32 data)
164{
165 struct igbvf_adapter *adapter = netdev_priv(netdev);
d4e0fe01
AD		 166
167 if (data) {
168 netdev->features |= NETIF_F_TSO;
169 netdev->features |= NETIF_F_TSO6;
170 } else {
171 netdev->features &= ~NETIF_F_TSO;
172 netdev->features &= ~NETIF_F_TSO6;
d4e0fe01
AD		 173 }
174
d4e0fe01
AD		 175 dev_info(&adapter->pdev->dev, "TSO is %s\n",
176 data ? "Enabled" : "Disabled");
d4e0fe01
AD		 177 return 0;
178}
179
180static u32 igbvf_get_msglevel(struct net_device *netdev)
181{
182 struct igbvf_adapter *adapter = netdev_priv(netdev);
183 return adapter->msg_enable;
184}
185
186static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
187{
188 struct igbvf_adapter *adapter = netdev_priv(netdev);
189 adapter->msg_enable = data;
190}
191
192static int igbvf_get_regs_len(struct net_device *netdev)
193{
194#define IGBVF_REGS_LEN 8
195 return IGBVF_REGS_LEN * sizeof(u32);
196}
197
198static void igbvf_get_regs(struct net_device *netdev,
199 struct ethtool_regs *regs, void *p)
200{
201 struct igbvf_adapter *adapter = netdev_priv(netdev);
202 struct e1000_hw *hw = &adapter->hw;
203 u32 *regs_buff = p;
204 u8 revision_id;
205
206 memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
207
208 pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
209
210 regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;
211
212 regs_buff[0] = er32(CTRL);
213 regs_buff[1] = er32(STATUS);
214
215 regs_buff[2] = er32(RDLEN(0));
216 regs_buff[3] = er32(RDH(0));
217 regs_buff[4] = er32(RDT(0));
218
219 regs_buff[5] = er32(TDLEN(0));
220 regs_buff[6] = er32(TDH(0));
221 regs_buff[7] = er32(TDT(0));
222}
223
224static int igbvf_get_eeprom_len(struct net_device *netdev)
225{
226 return 0;
227}
228
229static int igbvf_get_eeprom(struct net_device *netdev,
230 struct ethtool_eeprom *eeprom, u8 *bytes)
231{
232 return -EOPNOTSUPP;
233}
234
235static int igbvf_set_eeprom(struct net_device *netdev,
236 struct ethtool_eeprom *eeprom, u8 *bytes)
237{
238 return -EOPNOTSUPP;
239}
240
241static void igbvf_get_drvinfo(struct net_device *netdev,
242 struct ethtool_drvinfo *drvinfo)
243{
244 struct igbvf_adapter *adapter = netdev_priv(netdev);
245 char firmware_version[32] = "N/A";
246
247 strncpy(drvinfo->driver, igbvf_driver_name, 32);
248 strncpy(drvinfo->version, igbvf_driver_version, 32);
249 strncpy(drvinfo->fw_version, firmware_version, 32);
250 strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
251 drvinfo->regdump_len = igbvf_get_regs_len(netdev);
252 drvinfo->eedump_len = igbvf_get_eeprom_len(netdev);
253}
254
255static void igbvf_get_ringparam(struct net_device *netdev,
256 struct ethtool_ringparam *ring)
257{
258 struct igbvf_adapter *adapter = netdev_priv(netdev);
259 struct igbvf_ring *tx_ring = adapter->tx_ring;
260 struct igbvf_ring *rx_ring = adapter->rx_ring;
261
262 ring->rx_max_pending = IGBVF_MAX_RXD;
263 ring->tx_max_pending = IGBVF_MAX_TXD;
264 ring->rx_mini_max_pending = 0;
265 ring->rx_jumbo_max_pending = 0;
266 ring->rx_pending = rx_ring->count;
267 ring->tx_pending = tx_ring->count;
268 ring->rx_mini_pending = 0;
269 ring->rx_jumbo_pending = 0;
270}
271
272static int igbvf_set_ringparam(struct net_device *netdev,
273 struct ethtool_ringparam *ring)
274{
275 struct igbvf_adapter *adapter = netdev_priv(netdev);
276 struct igbvf_ring *temp_ring;
39305965 277 int err = 0;
d4e0fe01
AD		 278 u32 new_rx_count, new_tx_count;
279
280 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
281 return -EINVAL;
282
283 new_rx_count = max(ring->rx_pending, (u32)IGBVF_MIN_RXD);
284 new_rx_count = min(new_rx_count, (u32)IGBVF_MAX_RXD);
285 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
286
287 new_tx_count = max(ring->tx_pending, (u32)IGBVF_MIN_TXD);
288 new_tx_count = min(new_tx_count, (u32)IGBVF_MAX_TXD);
289 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
290
291 if ((new_tx_count == adapter->tx_ring->count) &&
292 (new_rx_count == adapter->rx_ring->count)) {
293 /* nothing to do */
294 return 0;
295 }
296
d4e0fe01
AD		 297 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
298 msleep(1);
299
39305965
AD		 300 if (!netif_running(adapter->netdev)) {
301 adapter->tx_ring->count = new_tx_count;
302 adapter->rx_ring->count = new_rx_count;
303 goto clear_reset;
304 }
305
306 temp_ring = vmalloc(sizeof(struct igbvf_ring));
307 if (!temp_ring) {
308 err = -ENOMEM;
309 goto clear_reset;
310 }
311
312 igbvf_down(adapter);
d4e0fe01
AD		 313
314 /*
315 * We can't just free everything and then setup again,
316 * because the ISRs in MSI-X mode get passed pointers
317 * to the tx and rx ring structs.
318 */
319 if (new_tx_count != adapter->tx_ring->count) {
320 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
321
322 temp_ring->count = new_tx_count;
323 err = igbvf_setup_tx_resources(adapter, temp_ring);
324 if (err)
325 goto err_setup;
326
327 igbvf_free_tx_resources(adapter->tx_ring);
328
329 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
330 }
331
332 if (new_rx_count != adapter->rx_ring->count) {
333 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
334
335 temp_ring->count = new_rx_count;
336 err = igbvf_setup_rx_resources(adapter, temp_ring);
337 if (err)
338 goto err_setup;
339
340 igbvf_free_rx_resources(adapter->rx_ring);
341
342 memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring));
343 }
d4e0fe01 344err_setup:
39305965 345 igbvf_up(adapter);
d4e0fe01 346 vfree(temp_ring);
39305965
AD		 347clear_reset:
348 clear_bit(__IGBVF_RESETTING, &adapter->state);
d4e0fe01
AD		 349 return err;
350}
351
352static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
353{
354 struct e1000_hw *hw = &adapter->hw;
355 *data = 0;
356
357 hw->mac.ops.check_for_link(hw);
358
359 if (!(er32(STATUS) & E1000_STATUS_LU))
360 *data = 1;
361
362 return *data;
363}
364
d4e0fe01
AD		 365static void igbvf_diag_test(struct net_device *netdev,
366 struct ethtool_test *eth_test, u64 *data)
367{
368 struct igbvf_adapter *adapter = netdev_priv(netdev);
369
370 set_bit(__IGBVF_TESTING, &adapter->state);
371
372 /*
373 * Link test performed before hardware reset so autoneg doesn't
374 * interfere with test result
375 */
376 if (igbvf_link_test(adapter, &data[0]))
377 eth_test->flags |= ETH_TEST_FL_FAILED;
378
379 clear_bit(__IGBVF_TESTING, &adapter->state);
380 msleep_interruptible(4 * 1000);
381}
382
383static void igbvf_get_wol(struct net_device *netdev,
384 struct ethtool_wolinfo *wol)
385{
386 wol->supported = 0;
387 wol->wolopts = 0;
d4e0fe01
AD		 388}
389
390static int igbvf_set_wol(struct net_device *netdev,
391 struct ethtool_wolinfo *wol)
392{
393 return -EOPNOTSUPP;
394}
395
396static int igbvf_phys_id(struct net_device *netdev, u32 data)
397{
398 return 0;
399}
400
401static int igbvf_get_coalesce(struct net_device *netdev,
402 struct ethtool_coalesce *ec)
403{
404 struct igbvf_adapter *adapter = netdev_priv(netdev);
405
406 if (adapter->itr_setting <= 3)
407 ec->rx_coalesce_usecs = adapter->itr_setting;
408 else
409 ec->rx_coalesce_usecs = adapter->itr_setting >> 2;
410
411 return 0;
412}
413
414static int igbvf_set_coalesce(struct net_device *netdev,
415 struct ethtool_coalesce *ec)
416{
417 struct igbvf_adapter *adapter = netdev_priv(netdev);
418 struct e1000_hw *hw = &adapter->hw;
419
420 if ((ec->rx_coalesce_usecs > IGBVF_MAX_ITR_USECS) ||
421 ((ec->rx_coalesce_usecs > 3) &&
422 (ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) ||
423 (ec->rx_coalesce_usecs == 2))
424 return -EINVAL;
425
426 /* convert to rate of irq's per second */
427 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) {
428 adapter->itr = IGBVF_START_ITR;
429 adapter->itr_setting = ec->rx_coalesce_usecs;
430 } else {
431 adapter->itr = ec->rx_coalesce_usecs << 2;
432 adapter->itr_setting = adapter->itr;
433 }
434
435 writel(adapter->itr,
436 hw->hw_addr + adapter->rx_ring[0].itr_register);
437
438 return 0;
439}
440
441static int igbvf_nway_reset(struct net_device *netdev)
442{
443 struct igbvf_adapter *adapter = netdev_priv(netdev);
444 if (netif_running(netdev))
445 igbvf_reinit_locked(adapter);
446 return 0;
447}
448
449
450static void igbvf_get_ethtool_stats(struct net_device *netdev,
451 struct ethtool_stats *stats,
452 u64 *data)
453{
454 struct igbvf_adapter *adapter = netdev_priv(netdev);
455 int i;
456
457 igbvf_update_stats(adapter);
458 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
459 char *p = (char *)adapter +
460 igbvf_gstrings_stats[i].stat_offset;
461 char *b = (char *)adapter +
462 igbvf_gstrings_stats[i].base_stat_offset;
463 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
464 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
465 (*(u32 *)p - *(u32 *)b));
466 }
467
468}
469
15f0a394
BH		 470static int igbvf_get_sset_count(struct net_device *dev, int stringset)
471{
472 switch(stringset) {
473 case ETH_SS_TEST:
474 return IGBVF_TEST_LEN;
475 case ETH_SS_STATS:
476 return IGBVF_GLOBAL_STATS_LEN;
477 default:
478 return -EINVAL;
479 }
480}
481
d4e0fe01
AD		 482static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
483 u8 *data)
484{
485 u8 *p = data;
486 int i;
487
488 switch (stringset) {
489 case ETH_SS_TEST:
490 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
491 break;
492 case ETH_SS_STATS:
493 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
494 memcpy(p, igbvf_gstrings_stats[i].stat_string,
495 ETH_GSTRING_LEN);
496 p += ETH_GSTRING_LEN;
497 }
498 break;
499 }
500}
501
502static const struct ethtool_ops igbvf_ethtool_ops = {
503 .get_settings = igbvf_get_settings,
504 .set_settings = igbvf_set_settings,
505 .get_drvinfo = igbvf_get_drvinfo,
506 .get_regs_len = igbvf_get_regs_len,
507 .get_regs = igbvf_get_regs,
508 .get_wol = igbvf_get_wol,
509 .set_wol = igbvf_set_wol,
510 .get_msglevel = igbvf_get_msglevel,
511 .set_msglevel = igbvf_set_msglevel,
512 .nway_reset = igbvf_nway_reset,
ed4ba4b5 513 .get_link = ethtool_op_get_link,
d4e0fe01
AD		 514 .get_eeprom_len = igbvf_get_eeprom_len,
515 .get_eeprom = igbvf_get_eeprom,
516 .set_eeprom = igbvf_set_eeprom,
517 .get_ringparam = igbvf_get_ringparam,
518 .set_ringparam = igbvf_set_ringparam,
519 .get_pauseparam = igbvf_get_pauseparam,
520 .set_pauseparam = igbvf_set_pauseparam,
0364d6fd
AD		 521 .get_rx_csum = igbvf_get_rx_csum,
522 .set_rx_csum = igbvf_set_rx_csum,
d4e0fe01
AD		 523 .get_tx_csum = igbvf_get_tx_csum,
524 .set_tx_csum = igbvf_set_tx_csum,
525 .get_sg = ethtool_op_get_sg,
526 .set_sg = ethtool_op_set_sg,
527 .get_tso = ethtool_op_get_tso,
528 .set_tso = igbvf_set_tso,
529 .self_test = igbvf_diag_test,
15f0a394 530 .get_sset_count = igbvf_get_sset_count,
d4e0fe01
AD		 531 .get_strings = igbvf_get_strings,
532 .phys_id = igbvf_phys_id,
533 .get_ethtool_stats = igbvf_get_ethtool_stats,
d4e0fe01
AD		 534 .get_coalesce = igbvf_get_coalesce,
535 .set_coalesce = igbvf_set_coalesce,
536};
537
538void igbvf_set_ethtool_ops(struct net_device *netdev)
539{
540 /* have to "undeclare" const on this struct to remove warnings */
541 SET_ETHTOOL_OPS(netdev, (struct ethtool_ops *)&igbvf_ethtool_ops);
542}
Linux kernel - Deliverables
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