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29#include <linux/netdevice.h>
30#include <linux/ethtool.h>
31#include <linux/pci.h>
32#include <linux/vmalloc.h>
33#include <linux/delay.h>
34
35#include "igbvf.h"
36#include <linux/if_vlan.h>
37
38struct igbvf_stats {
39 char stat_string[ETH_GSTRING_LEN];
40 int sizeof_stat;
41 int stat_offset;
42 int base_stat_offset;
43};
44
45#define IGBVF_STAT(current, base) \
46 sizeof(((struct igbvf_adapter *)0)->current), \
47 offsetof(struct igbvf_adapter, current), \
48 offsetof(struct igbvf_adapter, base)
49
50static const struct igbvf_stats igbvf_gstrings_stats[] = {
51 { "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) },
52 { "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) },
53 { "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
54 { "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
55 { "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
56 { "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
57 { "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
58 { "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
59 { "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
60 { "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
61 { "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
62 { "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
63 { "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) },
64};
65
66#define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats)
67
68static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = {
69 "Link test (on/offline)"
70};
71
72#define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test)
73
74static int igbvf_get_settings(struct net_device *netdev,
75 struct ethtool_cmd *ecmd)
76{
77 struct igbvf_adapter *adapter = netdev_priv(netdev);
78 struct e1000_hw *hw = &adapter->hw;
79 u32 status;
80
81 ecmd->supported = SUPPORTED_1000baseT_Full;
82
83 ecmd->advertising = ADVERTISED_1000baseT_Full;
84
85 ecmd->port = -1;
86 ecmd->transceiver = XCVR_DUMMY1;
87
88 status = er32(STATUS);
89 if (status & E1000_STATUS_LU) {
90 if (status & E1000_STATUS_SPEED_1000)
91 ethtool_cmd_speed_set(ecmd, SPEED_1000);
92 else if (status & E1000_STATUS_SPEED_100)
93 ethtool_cmd_speed_set(ecmd, SPEED_100);
94 else
95 ethtool_cmd_speed_set(ecmd, SPEED_10);
96
97 if (status & E1000_STATUS_FD)
98 ecmd->duplex = DUPLEX_FULL;
99 else
100 ecmd->duplex = DUPLEX_HALF;
101 } else {
102 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
103 ecmd->duplex = DUPLEX_UNKNOWN;
104 }
105
106 ecmd->autoneg = AUTONEG_DISABLE;
107
108 return 0;
109}
110
111static int igbvf_set_settings(struct net_device *netdev,
112 struct ethtool_cmd *ecmd)
113{
114 return -EOPNOTSUPP;
115}
116
117static void igbvf_get_pauseparam(struct net_device *netdev,
118 struct ethtool_pauseparam *pause)
119{
120}
121
122static int igbvf_set_pauseparam(struct net_device *netdev,
123 struct ethtool_pauseparam *pause)
124{
125 return -EOPNOTSUPP;
126}
127
128static u32 igbvf_get_msglevel(struct net_device *netdev)
129{
130 struct igbvf_adapter *adapter = netdev_priv(netdev);
131
132 return adapter->msg_enable;
133}
134
135static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
136{
137 struct igbvf_adapter *adapter = netdev_priv(netdev);
138
139 adapter->msg_enable = data;
140}
141
142static int igbvf_get_regs_len(struct net_device *netdev)
143{
144#define IGBVF_REGS_LEN 8
145 return IGBVF_REGS_LEN * sizeof(u32);
146}
147
148static void igbvf_get_regs(struct net_device *netdev,
149 struct ethtool_regs *regs, void *p)
150{
151 struct igbvf_adapter *adapter = netdev_priv(netdev);
152 struct e1000_hw *hw = &adapter->hw;
153 u32 *regs_buff = p;
154
155 memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
156
157 regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
158 adapter->pdev->device;
159
160 regs_buff[0] = er32(CTRL);
161 regs_buff[1] = er32(STATUS);
162
163 regs_buff[2] = er32(RDLEN(0));
164 regs_buff[3] = er32(RDH(0));
165 regs_buff[4] = er32(RDT(0));
166
167 regs_buff[5] = er32(TDLEN(0));
168 regs_buff[6] = er32(TDH(0));
169 regs_buff[7] = er32(TDT(0));
170}
171
172static int igbvf_get_eeprom_len(struct net_device *netdev)
173{
174 return 0;
175}
176
177static int igbvf_get_eeprom(struct net_device *netdev,
178 struct ethtool_eeprom *eeprom, u8 *bytes)
179{
180 return -EOPNOTSUPP;
181}
182
183static int igbvf_set_eeprom(struct net_device *netdev,
184 struct ethtool_eeprom *eeprom, u8 *bytes)
185{
186 return -EOPNOTSUPP;
187}
188
189static void igbvf_get_drvinfo(struct net_device *netdev,
190 struct ethtool_drvinfo *drvinfo)
191{
192 struct igbvf_adapter *adapter = netdev_priv(netdev);
193
194 strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver));
195 strlcpy(drvinfo->version, igbvf_driver_version,
196 sizeof(drvinfo->version));
197 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
198 sizeof(drvinfo->bus_info));
199}
200
201static void igbvf_get_ringparam(struct net_device *netdev,
202 struct ethtool_ringparam *ring)
203{
204 struct igbvf_adapter *adapter = netdev_priv(netdev);
205 struct igbvf_ring *tx_ring = adapter->tx_ring;
206 struct igbvf_ring *rx_ring = adapter->rx_ring;
207
208 ring->rx_max_pending = IGBVF_MAX_RXD;
209 ring->tx_max_pending = IGBVF_MAX_TXD;
210 ring->rx_pending = rx_ring->count;
211 ring->tx_pending = tx_ring->count;
212}
213
214static int igbvf_set_ringparam(struct net_device *netdev,
215 struct ethtool_ringparam *ring)
216{
217 struct igbvf_adapter *adapter = netdev_priv(netdev);
218 struct igbvf_ring *temp_ring;
219 int err = 0;
220 u32 new_rx_count, new_tx_count;
221
222 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
223 return -EINVAL;
224
225 new_rx_count = max_t(u32, ring->rx_pending, IGBVF_MIN_RXD);
226 new_rx_count = min_t(u32, new_rx_count, IGBVF_MAX_RXD);
227 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
228
229 new_tx_count = max_t(u32, ring->tx_pending, IGBVF_MIN_TXD);
230 new_tx_count = min_t(u32, new_tx_count, IGBVF_MAX_TXD);
231 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
232
233 if ((new_tx_count == adapter->tx_ring->count) &&
234 (new_rx_count == adapter->rx_ring->count)) {
235
236 return 0;
237 }
238
239 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
240 usleep_range(1000, 2000);
241
242 if (!netif_running(adapter->netdev)) {
243 adapter->tx_ring->count = new_tx_count;
244 adapter->rx_ring->count = new_rx_count;
245 goto clear_reset;
246 }
247
248 temp_ring = vmalloc(sizeof(struct igbvf_ring));
249 if (!temp_ring) {
250 err = -ENOMEM;
251 goto clear_reset;
252 }
253
254 igbvf_down(adapter);
255
256
257
258
259
260 if (new_tx_count != adapter->tx_ring->count) {
261 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
262
263 temp_ring->count = new_tx_count;
264 err = igbvf_setup_tx_resources(adapter, temp_ring);
265 if (err)
266 goto err_setup;
267
268 igbvf_free_tx_resources(adapter->tx_ring);
269
270 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
271 }
272
273 if (new_rx_count != adapter->rx_ring->count) {
274 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
275
276 temp_ring->count = new_rx_count;
277 err = igbvf_setup_rx_resources(adapter, temp_ring);
278 if (err)
279 goto err_setup;
280
281 igbvf_free_rx_resources(adapter->rx_ring);
282
283 memcpy(adapter->rx_ring, temp_ring, sizeof(struct igbvf_ring));
284 }
285err_setup:
286 igbvf_up(adapter);
287 vfree(temp_ring);
288clear_reset:
289 clear_bit(__IGBVF_RESETTING, &adapter->state);
290 return err;
291}
292
293static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
294{
295 struct e1000_hw *hw = &adapter->hw;
296 *data = 0;
297
298 hw->mac.ops.check_for_link(hw);
299
300 if (!(er32(STATUS) & E1000_STATUS_LU))
301 *data = 1;
302
303 return *data;
304}
305
306static void igbvf_diag_test(struct net_device *netdev,
307 struct ethtool_test *eth_test, u64 *data)
308{
309 struct igbvf_adapter *adapter = netdev_priv(netdev);
310
311 set_bit(__IGBVF_TESTING, &adapter->state);
312
313
314
315
316 if (igbvf_link_test(adapter, &data[0]))
317 eth_test->flags |= ETH_TEST_FL_FAILED;
318
319 clear_bit(__IGBVF_TESTING, &adapter->state);
320 msleep_interruptible(4 * 1000);
321}
322
323static void igbvf_get_wol(struct net_device *netdev,
324 struct ethtool_wolinfo *wol)
325{
326 wol->supported = 0;
327 wol->wolopts = 0;
328}
329
330static int igbvf_set_wol(struct net_device *netdev,
331 struct ethtool_wolinfo *wol)
332{
333 return -EOPNOTSUPP;
334}
335
336static int igbvf_get_coalesce(struct net_device *netdev,
337 struct ethtool_coalesce *ec)
338{
339 struct igbvf_adapter *adapter = netdev_priv(netdev);
340
341 if (adapter->requested_itr <= 3)
342 ec->rx_coalesce_usecs = adapter->requested_itr;
343 else
344 ec->rx_coalesce_usecs = adapter->current_itr >> 2;
345
346 return 0;
347}
348
349static int igbvf_set_coalesce(struct net_device *netdev,
350 struct ethtool_coalesce *ec)
351{
352 struct igbvf_adapter *adapter = netdev_priv(netdev);
353 struct e1000_hw *hw = &adapter->hw;
354
355 if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
356 (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
357 adapter->current_itr = ec->rx_coalesce_usecs << 2;
358 adapter->requested_itr = 1000000000 /
359 (adapter->current_itr * 256);
360 } else if ((ec->rx_coalesce_usecs == 3) ||
361 (ec->rx_coalesce_usecs == 2)) {
362 adapter->current_itr = IGBVF_START_ITR;
363 adapter->requested_itr = ec->rx_coalesce_usecs;
364 } else if (ec->rx_coalesce_usecs == 0) {
365
366
367
368
369
370
371 adapter->current_itr = 4;
372 adapter->requested_itr = 1000000000 /
373 (adapter->current_itr * 256);
374 } else {
375 return -EINVAL;
376 }
377
378 writel(adapter->current_itr,
379 hw->hw_addr + adapter->rx_ring->itr_register);
380
381 return 0;
382}
383
384static int igbvf_nway_reset(struct net_device *netdev)
385{
386 struct igbvf_adapter *adapter = netdev_priv(netdev);
387
388 if (netif_running(netdev))
389 igbvf_reinit_locked(adapter);
390 return 0;
391}
392
393static void igbvf_get_ethtool_stats(struct net_device *netdev,
394 struct ethtool_stats *stats,
395 u64 *data)
396{
397 struct igbvf_adapter *adapter = netdev_priv(netdev);
398 int i;
399
400 igbvf_update_stats(adapter);
401 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
402 char *p = (char *)adapter +
403 igbvf_gstrings_stats[i].stat_offset;
404 char *b = (char *)adapter +
405 igbvf_gstrings_stats[i].base_stat_offset;
406 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
407 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
408 (*(u32 *)p - *(u32 *)b));
409 }
410}
411
412static int igbvf_get_sset_count(struct net_device *dev, int stringset)
413{
414 switch (stringset) {
415 case ETH_SS_TEST:
416 return IGBVF_TEST_LEN;
417 case ETH_SS_STATS:
418 return IGBVF_GLOBAL_STATS_LEN;
419 default:
420 return -EINVAL;
421 }
422}
423
424static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
425 u8 *data)
426{
427 u8 *p = data;
428 int i;
429
430 switch (stringset) {
431 case ETH_SS_TEST:
432 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
433 break;
434 case ETH_SS_STATS:
435 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
436 memcpy(p, igbvf_gstrings_stats[i].stat_string,
437 ETH_GSTRING_LEN);
438 p += ETH_GSTRING_LEN;
439 }
440 break;
441 }
442}
443
444static const struct ethtool_ops igbvf_ethtool_ops = {
445 .get_settings = igbvf_get_settings,
446 .set_settings = igbvf_set_settings,
447 .get_drvinfo = igbvf_get_drvinfo,
448 .get_regs_len = igbvf_get_regs_len,
449 .get_regs = igbvf_get_regs,
450 .get_wol = igbvf_get_wol,
451 .set_wol = igbvf_set_wol,
452 .get_msglevel = igbvf_get_msglevel,
453 .set_msglevel = igbvf_set_msglevel,
454 .nway_reset = igbvf_nway_reset,
455 .get_link = ethtool_op_get_link,
456 .get_eeprom_len = igbvf_get_eeprom_len,
457 .get_eeprom = igbvf_get_eeprom,
458 .set_eeprom = igbvf_set_eeprom,
459 .get_ringparam = igbvf_get_ringparam,
460 .set_ringparam = igbvf_set_ringparam,
461 .get_pauseparam = igbvf_get_pauseparam,
462 .set_pauseparam = igbvf_set_pauseparam,
463 .self_test = igbvf_diag_test,
464 .get_sset_count = igbvf_get_sset_count,
465 .get_strings = igbvf_get_strings,
466 .get_ethtool_stats = igbvf_get_ethtool_stats,
467 .get_coalesce = igbvf_get_coalesce,
468 .set_coalesce = igbvf_set_coalesce,
469};
470
471void igbvf_set_ethtool_ops(struct net_device *netdev)
472{
473 netdev->ethtool_ops = &igbvf_ethtool_ops;
474}
475
