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d4e0fe01 AD |
1 | /******************************************************************************* |
2 | ||
3 | Intel(R) 82576 Virtual Function Linux driver | |
2a06ed92 | 4 | Copyright(c) 2009 - 2012 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 | ||
40 | struct 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 | ||
52 | static 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 | ||
70 | static 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 | ||
76 | static 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) | |
70739497 | 93 | ethtool_cmd_speed_set(ecmd, SPEED_1000); |
d4e0fe01 | 94 | else if (status & E1000_STATUS_SPEED_100) |
70739497 | 95 | ethtool_cmd_speed_set(ecmd, SPEED_100); |
d4e0fe01 | 96 | else |
70739497 | 97 | ethtool_cmd_speed_set(ecmd, SPEED_10); |
d4e0fe01 AD |
98 | |
99 | if (status & E1000_STATUS_FD) | |
100 | ecmd->duplex = DUPLEX_FULL; | |
101 | else | |
102 | ecmd->duplex = DUPLEX_HALF; | |
103 | } else { | |
70739497 | 104 | ethtool_cmd_speed_set(ecmd, -1); |
d4e0fe01 AD |
105 | ecmd->duplex = -1; |
106 | } | |
107 | ||
108 | ecmd->autoneg = AUTONEG_DISABLE; | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
d4e0fe01 AD |
113 | static int igbvf_set_settings(struct net_device *netdev, |
114 | struct ethtool_cmd *ecmd) | |
115 | { | |
116 | return -EOPNOTSUPP; | |
117 | } | |
118 | ||
119 | static void igbvf_get_pauseparam(struct net_device *netdev, | |
120 | struct ethtool_pauseparam *pause) | |
121 | { | |
122 | return; | |
123 | } | |
124 | ||
125 | static int igbvf_set_pauseparam(struct net_device *netdev, | |
126 | struct ethtool_pauseparam *pause) | |
127 | { | |
128 | return -EOPNOTSUPP; | |
129 | } | |
130 | ||
d4e0fe01 AD |
131 | static u32 igbvf_get_msglevel(struct net_device *netdev) |
132 | { | |
133 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
134 | return adapter->msg_enable; | |
135 | } | |
136 | ||
137 | static void igbvf_set_msglevel(struct net_device *netdev, u32 data) | |
138 | { | |
139 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
140 | adapter->msg_enable = data; | |
141 | } | |
142 | ||
143 | static int igbvf_get_regs_len(struct net_device *netdev) | |
144 | { | |
145 | #define IGBVF_REGS_LEN 8 | |
146 | return IGBVF_REGS_LEN * sizeof(u32); | |
147 | } | |
148 | ||
149 | static void igbvf_get_regs(struct net_device *netdev, | |
150 | struct ethtool_regs *regs, void *p) | |
151 | { | |
152 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
153 | struct e1000_hw *hw = &adapter->hw; | |
154 | u32 *regs_buff = p; | |
d4e0fe01 AD |
155 | |
156 | memset(p, 0, IGBVF_REGS_LEN * sizeof(u32)); | |
157 | ||
ff938e43 SS |
158 | regs->version = (1 << 24) | (adapter->pdev->revision << 16) | |
159 | adapter->pdev->device; | |
d4e0fe01 AD |
160 | |
161 | regs_buff[0] = er32(CTRL); | |
162 | regs_buff[1] = er32(STATUS); | |
163 | ||
164 | regs_buff[2] = er32(RDLEN(0)); | |
165 | regs_buff[3] = er32(RDH(0)); | |
166 | regs_buff[4] = er32(RDT(0)); | |
167 | ||
168 | regs_buff[5] = er32(TDLEN(0)); | |
169 | regs_buff[6] = er32(TDH(0)); | |
170 | regs_buff[7] = er32(TDT(0)); | |
171 | } | |
172 | ||
173 | static int igbvf_get_eeprom_len(struct net_device *netdev) | |
174 | { | |
175 | return 0; | |
176 | } | |
177 | ||
178 | static int igbvf_get_eeprom(struct net_device *netdev, | |
179 | struct ethtool_eeprom *eeprom, u8 *bytes) | |
180 | { | |
181 | return -EOPNOTSUPP; | |
182 | } | |
183 | ||
184 | static int igbvf_set_eeprom(struct net_device *netdev, | |
185 | struct ethtool_eeprom *eeprom, u8 *bytes) | |
186 | { | |
187 | return -EOPNOTSUPP; | |
188 | } | |
189 | ||
190 | static void igbvf_get_drvinfo(struct net_device *netdev, | |
191 | struct ethtool_drvinfo *drvinfo) | |
192 | { | |
193 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
d4e0fe01 | 194 | |
612a94d6 RJ |
195 | strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver)); |
196 | strlcpy(drvinfo->version, igbvf_driver_version, | |
197 | sizeof(drvinfo->version)); | |
612a94d6 RJ |
198 | strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), |
199 | sizeof(drvinfo->bus_info)); | |
d4e0fe01 AD |
200 | drvinfo->regdump_len = igbvf_get_regs_len(netdev); |
201 | drvinfo->eedump_len = igbvf_get_eeprom_len(netdev); | |
202 | } | |
203 | ||
204 | static void igbvf_get_ringparam(struct net_device *netdev, | |
205 | struct ethtool_ringparam *ring) | |
206 | { | |
207 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
208 | struct igbvf_ring *tx_ring = adapter->tx_ring; | |
209 | struct igbvf_ring *rx_ring = adapter->rx_ring; | |
210 | ||
211 | ring->rx_max_pending = IGBVF_MAX_RXD; | |
212 | ring->tx_max_pending = IGBVF_MAX_TXD; | |
d4e0fe01 AD |
213 | ring->rx_pending = rx_ring->count; |
214 | ring->tx_pending = tx_ring->count; | |
d4e0fe01 AD |
215 | } |
216 | ||
217 | static int igbvf_set_ringparam(struct net_device *netdev, | |
218 | struct ethtool_ringparam *ring) | |
219 | { | |
220 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
221 | struct igbvf_ring *temp_ring; | |
39305965 | 222 | int err = 0; |
d4e0fe01 AD |
223 | u32 new_rx_count, new_tx_count; |
224 | ||
225 | if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) | |
226 | return -EINVAL; | |
227 | ||
228 | new_rx_count = max(ring->rx_pending, (u32)IGBVF_MIN_RXD); | |
229 | new_rx_count = min(new_rx_count, (u32)IGBVF_MAX_RXD); | |
230 | new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); | |
231 | ||
232 | new_tx_count = max(ring->tx_pending, (u32)IGBVF_MIN_TXD); | |
233 | new_tx_count = min(new_tx_count, (u32)IGBVF_MAX_TXD); | |
234 | new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); | |
235 | ||
236 | if ((new_tx_count == adapter->tx_ring->count) && | |
237 | (new_rx_count == adapter->rx_ring->count)) { | |
238 | /* nothing to do */ | |
239 | return 0; | |
240 | } | |
241 | ||
d4e0fe01 AD |
242 | while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state)) |
243 | msleep(1); | |
244 | ||
39305965 AD |
245 | if (!netif_running(adapter->netdev)) { |
246 | adapter->tx_ring->count = new_tx_count; | |
247 | adapter->rx_ring->count = new_rx_count; | |
248 | goto clear_reset; | |
249 | } | |
250 | ||
251 | temp_ring = vmalloc(sizeof(struct igbvf_ring)); | |
252 | if (!temp_ring) { | |
253 | err = -ENOMEM; | |
254 | goto clear_reset; | |
255 | } | |
256 | ||
257 | igbvf_down(adapter); | |
d4e0fe01 AD |
258 | |
259 | /* | |
260 | * We can't just free everything and then setup again, | |
261 | * because the ISRs in MSI-X mode get passed pointers | |
262 | * to the tx and rx ring structs. | |
263 | */ | |
264 | if (new_tx_count != adapter->tx_ring->count) { | |
265 | memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring)); | |
266 | ||
267 | temp_ring->count = new_tx_count; | |
268 | err = igbvf_setup_tx_resources(adapter, temp_ring); | |
269 | if (err) | |
270 | goto err_setup; | |
271 | ||
272 | igbvf_free_tx_resources(adapter->tx_ring); | |
273 | ||
274 | memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring)); | |
275 | } | |
276 | ||
277 | if (new_rx_count != adapter->rx_ring->count) { | |
278 | memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring)); | |
279 | ||
280 | temp_ring->count = new_rx_count; | |
281 | err = igbvf_setup_rx_resources(adapter, temp_ring); | |
282 | if (err) | |
283 | goto err_setup; | |
284 | ||
285 | igbvf_free_rx_resources(adapter->rx_ring); | |
286 | ||
287 | memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring)); | |
288 | } | |
d4e0fe01 | 289 | err_setup: |
39305965 | 290 | igbvf_up(adapter); |
d4e0fe01 | 291 | vfree(temp_ring); |
39305965 AD |
292 | clear_reset: |
293 | clear_bit(__IGBVF_RESETTING, &adapter->state); | |
d4e0fe01 AD |
294 | return err; |
295 | } | |
296 | ||
297 | static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data) | |
298 | { | |
299 | struct e1000_hw *hw = &adapter->hw; | |
300 | *data = 0; | |
301 | ||
302 | hw->mac.ops.check_for_link(hw); | |
303 | ||
304 | if (!(er32(STATUS) & E1000_STATUS_LU)) | |
305 | *data = 1; | |
306 | ||
307 | return *data; | |
308 | } | |
309 | ||
d4e0fe01 AD |
310 | static void igbvf_diag_test(struct net_device *netdev, |
311 | struct ethtool_test *eth_test, u64 *data) | |
312 | { | |
313 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
314 | ||
315 | set_bit(__IGBVF_TESTING, &adapter->state); | |
316 | ||
317 | /* | |
318 | * Link test performed before hardware reset so autoneg doesn't | |
319 | * interfere with test result | |
320 | */ | |
321 | if (igbvf_link_test(adapter, &data[0])) | |
322 | eth_test->flags |= ETH_TEST_FL_FAILED; | |
323 | ||
324 | clear_bit(__IGBVF_TESTING, &adapter->state); | |
325 | msleep_interruptible(4 * 1000); | |
326 | } | |
327 | ||
328 | static void igbvf_get_wol(struct net_device *netdev, | |
329 | struct ethtool_wolinfo *wol) | |
330 | { | |
331 | wol->supported = 0; | |
332 | wol->wolopts = 0; | |
d4e0fe01 AD |
333 | } |
334 | ||
335 | static int igbvf_set_wol(struct net_device *netdev, | |
336 | struct ethtool_wolinfo *wol) | |
337 | { | |
338 | return -EOPNOTSUPP; | |
339 | } | |
340 | ||
d4e0fe01 AD |
341 | static int igbvf_get_coalesce(struct net_device *netdev, |
342 | struct ethtool_coalesce *ec) | |
343 | { | |
344 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
345 | ||
ab50a2a4 MW |
346 | if (adapter->requested_itr <= 3) |
347 | ec->rx_coalesce_usecs = adapter->requested_itr; | |
d4e0fe01 | 348 | else |
ab50a2a4 | 349 | ec->rx_coalesce_usecs = adapter->current_itr >> 2; |
d4e0fe01 AD |
350 | |
351 | return 0; | |
352 | } | |
353 | ||
354 | static int igbvf_set_coalesce(struct net_device *netdev, | |
355 | struct ethtool_coalesce *ec) | |
356 | { | |
357 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
358 | struct e1000_hw *hw = &adapter->hw; | |
359 | ||
0e90b49c MW |
360 | if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) && |
361 | (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) { | |
362 | adapter->current_itr = ec->rx_coalesce_usecs << 2; | |
363 | adapter->requested_itr = 1000000000 / | |
364 | (adapter->current_itr * 256); | |
365 | } else if ((ec->rx_coalesce_usecs == 3) || | |
366 | (ec->rx_coalesce_usecs == 2)) { | |
ab50a2a4 MW |
367 | adapter->current_itr = IGBVF_START_ITR; |
368 | adapter->requested_itr = ec->rx_coalesce_usecs; | |
0e90b49c MW |
369 | } else if (ec->rx_coalesce_usecs == 0) { |
370 | /* | |
371 | * The user's desire is to turn off interrupt throttling | |
372 | * altogether, but due to HW limitations, we can't do that. | |
373 | * Instead we set a very small value in EITR, which would | |
374 | * allow ~967k interrupts per second, but allow the adapter's | |
375 | * internal clocking to still function properly. | |
376 | */ | |
377 | adapter->current_itr = 4; | |
ab50a2a4 MW |
378 | adapter->requested_itr = 1000000000 / |
379 | (adapter->current_itr * 256); | |
0e90b49c MW |
380 | } else |
381 | return -EINVAL; | |
d4e0fe01 | 382 | |
ab50a2a4 MW |
383 | writel(adapter->current_itr, |
384 | hw->hw_addr + adapter->rx_ring->itr_register); | |
d4e0fe01 AD |
385 | |
386 | return 0; | |
387 | } | |
388 | ||
389 | static int igbvf_nway_reset(struct net_device *netdev) | |
390 | { | |
391 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
392 | if (netif_running(netdev)) | |
393 | igbvf_reinit_locked(adapter); | |
394 | return 0; | |
395 | } | |
396 | ||
397 | ||
398 | static void igbvf_get_ethtool_stats(struct net_device *netdev, | |
399 | struct ethtool_stats *stats, | |
400 | u64 *data) | |
401 | { | |
402 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
403 | int i; | |
404 | ||
405 | igbvf_update_stats(adapter); | |
406 | for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) { | |
407 | char *p = (char *)adapter + | |
408 | igbvf_gstrings_stats[i].stat_offset; | |
409 | char *b = (char *)adapter + | |
410 | igbvf_gstrings_stats[i].base_stat_offset; | |
411 | data[i] = ((igbvf_gstrings_stats[i].sizeof_stat == | |
412 | sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) : | |
413 | (*(u32 *)p - *(u32 *)b)); | |
414 | } | |
415 | ||
416 | } | |
417 | ||
15f0a394 BH |
418 | static int igbvf_get_sset_count(struct net_device *dev, int stringset) |
419 | { | |
420 | switch(stringset) { | |
421 | case ETH_SS_TEST: | |
422 | return IGBVF_TEST_LEN; | |
423 | case ETH_SS_STATS: | |
424 | return IGBVF_GLOBAL_STATS_LEN; | |
425 | default: | |
426 | return -EINVAL; | |
427 | } | |
428 | } | |
429 | ||
d4e0fe01 AD |
430 | static void igbvf_get_strings(struct net_device *netdev, u32 stringset, |
431 | u8 *data) | |
432 | { | |
433 | u8 *p = data; | |
434 | int i; | |
435 | ||
436 | switch (stringset) { | |
437 | case ETH_SS_TEST: | |
438 | memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test)); | |
439 | break; | |
440 | case ETH_SS_STATS: | |
441 | for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) { | |
442 | memcpy(p, igbvf_gstrings_stats[i].stat_string, | |
443 | ETH_GSTRING_LEN); | |
444 | p += ETH_GSTRING_LEN; | |
445 | } | |
446 | break; | |
447 | } | |
448 | } | |
449 | ||
450 | static const struct ethtool_ops igbvf_ethtool_ops = { | |
451 | .get_settings = igbvf_get_settings, | |
452 | .set_settings = igbvf_set_settings, | |
453 | .get_drvinfo = igbvf_get_drvinfo, | |
454 | .get_regs_len = igbvf_get_regs_len, | |
455 | .get_regs = igbvf_get_regs, | |
456 | .get_wol = igbvf_get_wol, | |
457 | .set_wol = igbvf_set_wol, | |
458 | .get_msglevel = igbvf_get_msglevel, | |
459 | .set_msglevel = igbvf_set_msglevel, | |
460 | .nway_reset = igbvf_nway_reset, | |
ed4ba4b5 | 461 | .get_link = ethtool_op_get_link, |
d4e0fe01 AD |
462 | .get_eeprom_len = igbvf_get_eeprom_len, |
463 | .get_eeprom = igbvf_get_eeprom, | |
464 | .set_eeprom = igbvf_set_eeprom, | |
465 | .get_ringparam = igbvf_get_ringparam, | |
466 | .set_ringparam = igbvf_set_ringparam, | |
467 | .get_pauseparam = igbvf_get_pauseparam, | |
468 | .set_pauseparam = igbvf_set_pauseparam, | |
d4e0fe01 | 469 | .self_test = igbvf_diag_test, |
15f0a394 | 470 | .get_sset_count = igbvf_get_sset_count, |
d4e0fe01 | 471 | .get_strings = igbvf_get_strings, |
d4e0fe01 | 472 | .get_ethtool_stats = igbvf_get_ethtool_stats, |
d4e0fe01 AD |
473 | .get_coalesce = igbvf_get_coalesce, |
474 | .set_coalesce = igbvf_set_coalesce, | |
475 | }; | |
476 | ||
477 | void igbvf_set_ethtool_ops(struct net_device *netdev) | |
478 | { | |
7ad24ea4 | 479 | netdev->ethtool_ops = &igbvf_ethtool_ops; |
d4e0fe01 | 480 | } |