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-rw-r--r--drivers/net/igbvf/ethtool.c540
1 files changed, 540 insertions, 0 deletions
diff --git a/drivers/net/igbvf/ethtool.c b/drivers/net/igbvf/ethtool.c
new file mode 100644
index 000000000000..1dcaa6905312
--- /dev/null
+++ b/drivers/net/igbvf/ethtool.c
@@ -0,0 +1,540 @@
1/*******************************************************************************
2
3 Intel(R) 82576 Virtual Function Linux driver
4 Copyright(c) 2009 Intel Corporation.
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
113static u32 igbvf_get_link(struct net_device *netdev)
114{
115 return netif_carrier_ok(netdev);
116}
117
118static int igbvf_set_settings(struct net_device *netdev,
119 struct ethtool_cmd *ecmd)
120{
121 return -EOPNOTSUPP;
122}
123
124static void igbvf_get_pauseparam(struct net_device *netdev,
125 struct ethtool_pauseparam *pause)
126{
127 return;
128}
129
130static int igbvf_set_pauseparam(struct net_device *netdev,
131 struct ethtool_pauseparam *pause)
132{
133 return -EOPNOTSUPP;
134}
135
136static u32 igbvf_get_tx_csum(struct net_device *netdev)
137{
138 return ((netdev->features & NETIF_F_IP_CSUM) != 0);
139}
140
141static int igbvf_set_tx_csum(struct net_device *netdev, u32 data)
142{
143 if (data)
144 netdev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
145 else
146 netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
147 return 0;
148}
149
150static int igbvf_set_tso(struct net_device *netdev, u32 data)
151{
152 struct igbvf_adapter *adapter = netdev_priv(netdev);
153 int i;
154 struct net_device *v_netdev;
155
156 if (data) {
157 netdev->features |= NETIF_F_TSO;
158 netdev->features |= NETIF_F_TSO6;
159 } else {
160 netdev->features &= ~NETIF_F_TSO;
161 netdev->features &= ~NETIF_F_TSO6;
162 /* disable TSO on all VLANs if they're present */
163 if (!adapter->vlgrp)
164 goto tso_out;
165 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
166 v_netdev = vlan_group_get_device(adapter->vlgrp, i);
167 if (!v_netdev)
168 continue;
169
170 v_netdev->features &= ~NETIF_F_TSO;
171 v_netdev->features &= ~NETIF_F_TSO6;
172 vlan_group_set_device(adapter->vlgrp, i, v_netdev);
173 }
174 }
175
176tso_out:
177 dev_info(&adapter->pdev->dev, "TSO is %s\n",
178 data ? "Enabled" : "Disabled");
179 adapter->flags |= FLAG_TSO_FORCE;
180 return 0;
181}
182
183static u32 igbvf_get_msglevel(struct net_device *netdev)
184{
185 struct igbvf_adapter *adapter = netdev_priv(netdev);
186 return adapter->msg_enable;
187}
188
189static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
190{
191 struct igbvf_adapter *adapter = netdev_priv(netdev);
192 adapter->msg_enable = data;
193}
194
195static int igbvf_get_regs_len(struct net_device *netdev)
196{
197#define IGBVF_REGS_LEN 8
198 return IGBVF_REGS_LEN * sizeof(u32);
199}
200
201static void igbvf_get_regs(struct net_device *netdev,
202 struct ethtool_regs *regs, void *p)
203{
204 struct igbvf_adapter *adapter = netdev_priv(netdev);
205 struct e1000_hw *hw = &adapter->hw;
206 u32 *regs_buff = p;
207 u8 revision_id;
208
209 memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
210
211 pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
212
213 regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;
214
215 regs_buff[0] = er32(CTRL);
216 regs_buff[1] = er32(STATUS);
217
218 regs_buff[2] = er32(RDLEN(0));
219 regs_buff[3] = er32(RDH(0));
220 regs_buff[4] = er32(RDT(0));
221
222 regs_buff[5] = er32(TDLEN(0));
223 regs_buff[6] = er32(TDH(0));
224 regs_buff[7] = er32(TDT(0));
225}
226
227static int igbvf_get_eeprom_len(struct net_device *netdev)
228{
229 return 0;
230}
231
232static int igbvf_get_eeprom(struct net_device *netdev,
233 struct ethtool_eeprom *eeprom, u8 *bytes)
234{
235 return -EOPNOTSUPP;
236}
237
238static int igbvf_set_eeprom(struct net_device *netdev,
239 struct ethtool_eeprom *eeprom, u8 *bytes)
240{
241 return -EOPNOTSUPP;
242}
243
244static void igbvf_get_drvinfo(struct net_device *netdev,
245 struct ethtool_drvinfo *drvinfo)
246{
247 struct igbvf_adapter *adapter = netdev_priv(netdev);
248 char firmware_version[32] = "N/A";
249
250 strncpy(drvinfo->driver, igbvf_driver_name, 32);
251 strncpy(drvinfo->version, igbvf_driver_version, 32);
252 strncpy(drvinfo->fw_version, firmware_version, 32);
253 strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
254 drvinfo->regdump_len = igbvf_get_regs_len(netdev);
255 drvinfo->eedump_len = igbvf_get_eeprom_len(netdev);
256}
257
258static void igbvf_get_ringparam(struct net_device *netdev,
259 struct ethtool_ringparam *ring)
260{
261 struct igbvf_adapter *adapter = netdev_priv(netdev);
262 struct igbvf_ring *tx_ring = adapter->tx_ring;
263 struct igbvf_ring *rx_ring = adapter->rx_ring;
264
265 ring->rx_max_pending = IGBVF_MAX_RXD;
266 ring->tx_max_pending = IGBVF_MAX_TXD;
267 ring->rx_mini_max_pending = 0;
268 ring->rx_jumbo_max_pending = 0;
269 ring->rx_pending = rx_ring->count;
270 ring->tx_pending = tx_ring->count;
271 ring->rx_mini_pending = 0;
272 ring->rx_jumbo_pending = 0;
273}
274
275static int igbvf_set_ringparam(struct net_device *netdev,
276 struct ethtool_ringparam *ring)
277{
278 struct igbvf_adapter *adapter = netdev_priv(netdev);
279 struct igbvf_ring *temp_ring;
280 int err;
281 u32 new_rx_count, new_tx_count;
282
283 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
284 return -EINVAL;
285
286 new_rx_count = max(ring->rx_pending, (u32)IGBVF_MIN_RXD);
287 new_rx_count = min(new_rx_count, (u32)IGBVF_MAX_RXD);
288 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
289
290 new_tx_count = max(ring->tx_pending, (u32)IGBVF_MIN_TXD);
291 new_tx_count = min(new_tx_count, (u32)IGBVF_MAX_TXD);
292 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
293
294 if ((new_tx_count == adapter->tx_ring->count) &&
295 (new_rx_count == adapter->rx_ring->count)) {
296 /* nothing to do */
297 return 0;
298 }
299
300 temp_ring = vmalloc(sizeof(struct igbvf_ring));
301 if (!temp_ring)
302 return -ENOMEM;
303
304 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
305 msleep(1);
306
307 if (netif_running(adapter->netdev))
308 igbvf_down(adapter);
309
310 /*
311 * We can't just free everything and then setup again,
312 * because the ISRs in MSI-X mode get passed pointers
313 * to the tx and rx ring structs.
314 */
315 if (new_tx_count != adapter->tx_ring->count) {
316 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
317
318 temp_ring->count = new_tx_count;
319 err = igbvf_setup_tx_resources(adapter, temp_ring);
320 if (err)
321 goto err_setup;
322
323 igbvf_free_tx_resources(adapter->tx_ring);
324
325 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
326 }
327
328 if (new_rx_count != adapter->rx_ring->count) {
329 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
330
331 temp_ring->count = new_rx_count;
332 err = igbvf_setup_rx_resources(adapter, temp_ring);
333 if (err)
334 goto err_setup;
335
336 igbvf_free_rx_resources(adapter->rx_ring);
337
338 memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring));
339 }
340
341 err = 0;
342err_setup:
343 if (netif_running(adapter->netdev))
344 igbvf_up(adapter);
345
346 clear_bit(__IGBVF_RESETTING, &adapter->state);
347 vfree(temp_ring);
348 return err;
349}
350
351static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
352{
353 struct e1000_hw *hw = &adapter->hw;
354 *data = 0;
355
356 hw->mac.ops.check_for_link(hw);
357
358 if (!(er32(STATUS) & E1000_STATUS_LU))
359 *data = 1;
360
361 return *data;
362}
363
364static int igbvf_get_self_test_count(struct net_device *netdev)
365{
366 return IGBVF_TEST_LEN;
367}
368
369static int igbvf_get_stats_count(struct net_device *netdev)
370{
371 return IGBVF_GLOBAL_STATS_LEN;
372}
373
374static void igbvf_diag_test(struct net_device *netdev,
375 struct ethtool_test *eth_test, u64 *data)
376{
377 struct igbvf_adapter *adapter = netdev_priv(netdev);
378
379 set_bit(__IGBVF_TESTING, &adapter->state);
380
381 /*
382 * Link test performed before hardware reset so autoneg doesn't
383 * interfere with test result
384 */
385 if (igbvf_link_test(adapter, &data[0]))
386 eth_test->flags |= ETH_TEST_FL_FAILED;
387
388 clear_bit(__IGBVF_TESTING, &adapter->state);
389 msleep_interruptible(4 * 1000);
390}
391
392static void igbvf_get_wol(struct net_device *netdev,
393 struct ethtool_wolinfo *wol)
394{
395 wol->supported = 0;
396 wol->wolopts = 0;
397
398 return;
399}
400
401static int igbvf_set_wol(struct net_device *netdev,
402 struct ethtool_wolinfo *wol)
403{
404 return -EOPNOTSUPP;
405}
406
407static int igbvf_phys_id(struct net_device *netdev, u32 data)
408{
409 return 0;
410}
411
412static int igbvf_get_coalesce(struct net_device *netdev,
413 struct ethtool_coalesce *ec)
414{
415 struct igbvf_adapter *adapter = netdev_priv(netdev);
416
417 if (adapter->itr_setting <= 3)
418 ec->rx_coalesce_usecs = adapter->itr_setting;
419 else
420 ec->rx_coalesce_usecs = adapter->itr_setting >> 2;
421
422 return 0;
423}
424
425static int igbvf_set_coalesce(struct net_device *netdev,
426 struct ethtool_coalesce *ec)
427{
428 struct igbvf_adapter *adapter = netdev_priv(netdev);
429 struct e1000_hw *hw = &adapter->hw;
430
431 if ((ec->rx_coalesce_usecs > IGBVF_MAX_ITR_USECS) ||
432 ((ec->rx_coalesce_usecs > 3) &&
433 (ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) ||
434 (ec->rx_coalesce_usecs == 2))
435 return -EINVAL;
436
437 /* convert to rate of irq's per second */
438 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) {
439 adapter->itr = IGBVF_START_ITR;
440 adapter->itr_setting = ec->rx_coalesce_usecs;
441 } else {
442 adapter->itr = ec->rx_coalesce_usecs << 2;
443 adapter->itr_setting = adapter->itr;
444 }
445
446 writel(adapter->itr,
447 hw->hw_addr + adapter->rx_ring[0].itr_register);
448
449 return 0;
450}
451
452static int igbvf_nway_reset(struct net_device *netdev)
453{
454 struct igbvf_adapter *adapter = netdev_priv(netdev);
455 if (netif_running(netdev))
456 igbvf_reinit_locked(adapter);
457 return 0;
458}
459
460
461static void igbvf_get_ethtool_stats(struct net_device *netdev,
462 struct ethtool_stats *stats,
463 u64 *data)
464{
465 struct igbvf_adapter *adapter = netdev_priv(netdev);
466 int i;
467
468 igbvf_update_stats(adapter);
469 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
470 char *p = (char *)adapter +
471 igbvf_gstrings_stats[i].stat_offset;
472 char *b = (char *)adapter +
473 igbvf_gstrings_stats[i].base_stat_offset;
474 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
475 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
476 (*(u32 *)p - *(u32 *)b));
477 }
478
479}
480
481static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
482 u8 *data)
483{
484 u8 *p = data;
485 int i;
486
487 switch (stringset) {
488 case ETH_SS_TEST:
489 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
490 break;
491 case ETH_SS_STATS:
492 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
493 memcpy(p, igbvf_gstrings_stats[i].stat_string,
494 ETH_GSTRING_LEN);
495 p += ETH_GSTRING_LEN;
496 }
497 break;
498 }
499}
500
501static const struct ethtool_ops igbvf_ethtool_ops = {
502 .get_settings = igbvf_get_settings,
503 .set_settings = igbvf_set_settings,
504 .get_drvinfo = igbvf_get_drvinfo,
505 .get_regs_len = igbvf_get_regs_len,
506 .get_regs = igbvf_get_regs,
507 .get_wol = igbvf_get_wol,
508 .set_wol = igbvf_set_wol,
509 .get_msglevel = igbvf_get_msglevel,
510 .set_msglevel = igbvf_set_msglevel,
511 .nway_reset = igbvf_nway_reset,
512 .get_link = igbvf_get_link,
513 .get_eeprom_len = igbvf_get_eeprom_len,
514 .get_eeprom = igbvf_get_eeprom,
515 .set_eeprom = igbvf_set_eeprom,
516 .get_ringparam = igbvf_get_ringparam,
517 .set_ringparam = igbvf_set_ringparam,
518 .get_pauseparam = igbvf_get_pauseparam,
519 .set_pauseparam = igbvf_set_pauseparam,
520 .get_tx_csum = igbvf_get_tx_csum,
521 .set_tx_csum = igbvf_set_tx_csum,
522 .get_sg = ethtool_op_get_sg,
523 .set_sg = ethtool_op_set_sg,
524 .get_tso = ethtool_op_get_tso,
525 .set_tso = igbvf_set_tso,
526 .self_test = igbvf_diag_test,
527 .get_strings = igbvf_get_strings,
528 .phys_id = igbvf_phys_id,
529 .get_ethtool_stats = igbvf_get_ethtool_stats,
530 .self_test_count = igbvf_get_self_test_count,
531 .get_stats_count = igbvf_get_stats_count,
532 .get_coalesce = igbvf_get_coalesce,
533 .set_coalesce = igbvf_set_coalesce,
534};
535
536void igbvf_set_ethtool_ops(struct net_device *netdev)
537{
538 /* have to "undeclare" const on this struct to remove warnings */
539 SET_ETHTOOL_OPS(netdev, (struct ethtool_ops *)&igbvf_ethtool_ops);
540}
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