Commit | Line | Data |
---|---|---|
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 { | |
537fae01 JP |
104 | ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); |
105 | ecmd->duplex = DUPLEX_UNKNOWN; | |
d4e0fe01 AD |
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 | { | |
d4e0fe01 AD |
122 | } |
123 | ||
124 | static int igbvf_set_pauseparam(struct net_device *netdev, | |
125 | struct ethtool_pauseparam *pause) | |
126 | { | |
127 | return -EOPNOTSUPP; | |
128 | } | |
129 | ||
d4e0fe01 AD |
130 | static u32 igbvf_get_msglevel(struct net_device *netdev) |
131 | { | |
132 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
133 | return adapter->msg_enable; | |
134 | } | |
135 | ||
136 | static void igbvf_set_msglevel(struct net_device *netdev, u32 data) | |
137 | { | |
138 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
139 | adapter->msg_enable = data; | |
140 | } | |
141 | ||
142 | static 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 | ||
148 | static 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; | |
d4e0fe01 AD |
154 | |
155 | memset(p, 0, IGBVF_REGS_LEN * sizeof(u32)); | |
156 | ||
ff938e43 SS |
157 | regs->version = (1 << 24) | (adapter->pdev->revision << 16) | |
158 | adapter->pdev->device; | |
d4e0fe01 AD |
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 | ||
172 | static int igbvf_get_eeprom_len(struct net_device *netdev) | |
173 | { | |
174 | return 0; | |
175 | } | |
176 | ||
177 | static int igbvf_get_eeprom(struct net_device *netdev, | |
178 | struct ethtool_eeprom *eeprom, u8 *bytes) | |
179 | { | |
180 | return -EOPNOTSUPP; | |
181 | } | |
182 | ||
183 | static int igbvf_set_eeprom(struct net_device *netdev, | |
184 | struct ethtool_eeprom *eeprom, u8 *bytes) | |
185 | { | |
186 | return -EOPNOTSUPP; | |
187 | } | |
188 | ||
189 | static void igbvf_get_drvinfo(struct net_device *netdev, | |
190 | struct ethtool_drvinfo *drvinfo) | |
191 | { | |
192 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
d4e0fe01 | 193 | |
612a94d6 RJ |
194 | strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver)); |
195 | strlcpy(drvinfo->version, igbvf_driver_version, | |
196 | sizeof(drvinfo->version)); | |
612a94d6 RJ |
197 | strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), |
198 | sizeof(drvinfo->bus_info)); | |
d4e0fe01 AD |
199 | drvinfo->regdump_len = igbvf_get_regs_len(netdev); |
200 | drvinfo->eedump_len = igbvf_get_eeprom_len(netdev); | |
201 | } | |
202 | ||
203 | static void igbvf_get_ringparam(struct net_device *netdev, | |
204 | struct ethtool_ringparam *ring) | |
205 | { | |
206 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
207 | struct igbvf_ring *tx_ring = adapter->tx_ring; | |
208 | struct igbvf_ring *rx_ring = adapter->rx_ring; | |
209 | ||
210 | ring->rx_max_pending = IGBVF_MAX_RXD; | |
211 | ring->tx_max_pending = IGBVF_MAX_TXD; | |
d4e0fe01 AD |
212 | ring->rx_pending = rx_ring->count; |
213 | ring->tx_pending = tx_ring->count; | |
d4e0fe01 AD |
214 | } |
215 | ||
216 | static int igbvf_set_ringparam(struct net_device *netdev, | |
217 | struct ethtool_ringparam *ring) | |
218 | { | |
219 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
220 | struct igbvf_ring *temp_ring; | |
39305965 | 221 | int err = 0; |
d4e0fe01 AD |
222 | u32 new_rx_count, new_tx_count; |
223 | ||
224 | if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) | |
225 | return -EINVAL; | |
226 | ||
227 | new_rx_count = max(ring->rx_pending, (u32)IGBVF_MIN_RXD); | |
228 | new_rx_count = min(new_rx_count, (u32)IGBVF_MAX_RXD); | |
229 | new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); | |
230 | ||
231 | new_tx_count = max(ring->tx_pending, (u32)IGBVF_MIN_TXD); | |
232 | new_tx_count = min(new_tx_count, (u32)IGBVF_MAX_TXD); | |
233 | new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); | |
234 | ||
235 | if ((new_tx_count == adapter->tx_ring->count) && | |
236 | (new_rx_count == adapter->rx_ring->count)) { | |
237 | /* nothing to do */ | |
238 | return 0; | |
239 | } | |
240 | ||
d4e0fe01 AD |
241 | while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state)) |
242 | msleep(1); | |
243 | ||
39305965 AD |
244 | if (!netif_running(adapter->netdev)) { |
245 | adapter->tx_ring->count = new_tx_count; | |
246 | adapter->rx_ring->count = new_rx_count; | |
247 | goto clear_reset; | |
248 | } | |
249 | ||
250 | temp_ring = vmalloc(sizeof(struct igbvf_ring)); | |
251 | if (!temp_ring) { | |
252 | err = -ENOMEM; | |
253 | goto clear_reset; | |
254 | } | |
255 | ||
256 | igbvf_down(adapter); | |
d4e0fe01 AD |
257 | |
258 | /* | |
259 | * We can't just free everything and then setup again, | |
260 | * because the ISRs in MSI-X mode get passed pointers | |
261 | * to the tx and rx ring structs. | |
262 | */ | |
263 | if (new_tx_count != adapter->tx_ring->count) { | |
264 | memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring)); | |
265 | ||
266 | temp_ring->count = new_tx_count; | |
267 | err = igbvf_setup_tx_resources(adapter, temp_ring); | |
268 | if (err) | |
269 | goto err_setup; | |
270 | ||
271 | igbvf_free_tx_resources(adapter->tx_ring); | |
272 | ||
273 | memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring)); | |
274 | } | |
275 | ||
276 | if (new_rx_count != adapter->rx_ring->count) { | |
277 | memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring)); | |
278 | ||
279 | temp_ring->count = new_rx_count; | |
280 | err = igbvf_setup_rx_resources(adapter, temp_ring); | |
281 | if (err) | |
282 | goto err_setup; | |
283 | ||
284 | igbvf_free_rx_resources(adapter->rx_ring); | |
285 | ||
286 | memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring)); | |
287 | } | |
d4e0fe01 | 288 | err_setup: |
39305965 | 289 | igbvf_up(adapter); |
d4e0fe01 | 290 | vfree(temp_ring); |
39305965 AD |
291 | clear_reset: |
292 | clear_bit(__IGBVF_RESETTING, &adapter->state); | |
d4e0fe01 AD |
293 | return err; |
294 | } | |
295 | ||
296 | static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data) | |
297 | { | |
298 | struct e1000_hw *hw = &adapter->hw; | |
299 | *data = 0; | |
300 | ||
301 | hw->mac.ops.check_for_link(hw); | |
302 | ||
303 | if (!(er32(STATUS) & E1000_STATUS_LU)) | |
304 | *data = 1; | |
305 | ||
306 | return *data; | |
307 | } | |
308 | ||
d4e0fe01 AD |
309 | static void igbvf_diag_test(struct net_device *netdev, |
310 | struct ethtool_test *eth_test, u64 *data) | |
311 | { | |
312 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
313 | ||
314 | set_bit(__IGBVF_TESTING, &adapter->state); | |
315 | ||
316 | /* | |
317 | * Link test performed before hardware reset so autoneg doesn't | |
318 | * interfere with test result | |
319 | */ | |
320 | if (igbvf_link_test(adapter, &data[0])) | |
321 | eth_test->flags |= ETH_TEST_FL_FAILED; | |
322 | ||
323 | clear_bit(__IGBVF_TESTING, &adapter->state); | |
324 | msleep_interruptible(4 * 1000); | |
325 | } | |
326 | ||
327 | static void igbvf_get_wol(struct net_device *netdev, | |
328 | struct ethtool_wolinfo *wol) | |
329 | { | |
330 | wol->supported = 0; | |
331 | wol->wolopts = 0; | |
d4e0fe01 AD |
332 | } |
333 | ||
334 | static int igbvf_set_wol(struct net_device *netdev, | |
335 | struct ethtool_wolinfo *wol) | |
336 | { | |
337 | return -EOPNOTSUPP; | |
338 | } | |
339 | ||
d4e0fe01 AD |
340 | static int igbvf_get_coalesce(struct net_device *netdev, |
341 | struct ethtool_coalesce *ec) | |
342 | { | |
343 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
344 | ||
ab50a2a4 MW |
345 | if (adapter->requested_itr <= 3) |
346 | ec->rx_coalesce_usecs = adapter->requested_itr; | |
d4e0fe01 | 347 | else |
ab50a2a4 | 348 | ec->rx_coalesce_usecs = adapter->current_itr >> 2; |
d4e0fe01 AD |
349 | |
350 | return 0; | |
351 | } | |
352 | ||
353 | static int igbvf_set_coalesce(struct net_device *netdev, | |
354 | struct ethtool_coalesce *ec) | |
355 | { | |
356 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
357 | struct e1000_hw *hw = &adapter->hw; | |
358 | ||
0e90b49c MW |
359 | if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) && |
360 | (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) { | |
361 | adapter->current_itr = ec->rx_coalesce_usecs << 2; | |
362 | adapter->requested_itr = 1000000000 / | |
363 | (adapter->current_itr * 256); | |
364 | } else if ((ec->rx_coalesce_usecs == 3) || | |
365 | (ec->rx_coalesce_usecs == 2)) { | |
ab50a2a4 MW |
366 | adapter->current_itr = IGBVF_START_ITR; |
367 | adapter->requested_itr = ec->rx_coalesce_usecs; | |
0e90b49c MW |
368 | } else if (ec->rx_coalesce_usecs == 0) { |
369 | /* | |
370 | * The user's desire is to turn off interrupt throttling | |
371 | * altogether, but due to HW limitations, we can't do that. | |
372 | * Instead we set a very small value in EITR, which would | |
373 | * allow ~967k interrupts per second, but allow the adapter's | |
374 | * internal clocking to still function properly. | |
375 | */ | |
376 | adapter->current_itr = 4; | |
ab50a2a4 MW |
377 | adapter->requested_itr = 1000000000 / |
378 | (adapter->current_itr * 256); | |
0e90b49c MW |
379 | } else |
380 | return -EINVAL; | |
d4e0fe01 | 381 | |
ab50a2a4 MW |
382 | writel(adapter->current_itr, |
383 | hw->hw_addr + adapter->rx_ring->itr_register); | |
d4e0fe01 AD |
384 | |
385 | return 0; | |
386 | } | |
387 | ||
388 | static int igbvf_nway_reset(struct net_device *netdev) | |
389 | { | |
390 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
391 | if (netif_running(netdev)) | |
392 | igbvf_reinit_locked(adapter); | |
393 | return 0; | |
394 | } | |
395 | ||
396 | ||
397 | static void igbvf_get_ethtool_stats(struct net_device *netdev, | |
398 | struct ethtool_stats *stats, | |
399 | u64 *data) | |
400 | { | |
401 | struct igbvf_adapter *adapter = netdev_priv(netdev); | |
402 | int i; | |
403 | ||
404 | igbvf_update_stats(adapter); | |
405 | for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) { | |
406 | char *p = (char *)adapter + | |
407 | igbvf_gstrings_stats[i].stat_offset; | |
408 | char *b = (char *)adapter + | |
409 | igbvf_gstrings_stats[i].base_stat_offset; | |
410 | data[i] = ((igbvf_gstrings_stats[i].sizeof_stat == | |
411 | sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) : | |
412 | (*(u32 *)p - *(u32 *)b)); | |
413 | } | |
414 | ||
415 | } | |
416 | ||
15f0a394 BH |
417 | static int igbvf_get_sset_count(struct net_device *dev, int stringset) |
418 | { | |
419 | switch(stringset) { | |
420 | case ETH_SS_TEST: | |
421 | return IGBVF_TEST_LEN; | |
422 | case ETH_SS_STATS: | |
423 | return IGBVF_GLOBAL_STATS_LEN; | |
424 | default: | |
425 | return -EINVAL; | |
426 | } | |
427 | } | |
428 | ||
d4e0fe01 AD |
429 | static void igbvf_get_strings(struct net_device *netdev, u32 stringset, |
430 | u8 *data) | |
431 | { | |
432 | u8 *p = data; | |
433 | int i; | |
434 | ||
435 | switch (stringset) { | |
436 | case ETH_SS_TEST: | |
437 | memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test)); | |
438 | break; | |
439 | case ETH_SS_STATS: | |
440 | for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) { | |
441 | memcpy(p, igbvf_gstrings_stats[i].stat_string, | |
442 | ETH_GSTRING_LEN); | |
443 | p += ETH_GSTRING_LEN; | |
444 | } | |
445 | break; | |
446 | } | |
447 | } | |
448 | ||
449 | static const struct ethtool_ops igbvf_ethtool_ops = { | |
450 | .get_settings = igbvf_get_settings, | |
451 | .set_settings = igbvf_set_settings, | |
452 | .get_drvinfo = igbvf_get_drvinfo, | |
453 | .get_regs_len = igbvf_get_regs_len, | |
454 | .get_regs = igbvf_get_regs, | |
455 | .get_wol = igbvf_get_wol, | |
456 | .set_wol = igbvf_set_wol, | |
457 | .get_msglevel = igbvf_get_msglevel, | |
458 | .set_msglevel = igbvf_set_msglevel, | |
459 | .nway_reset = igbvf_nway_reset, | |
ed4ba4b5 | 460 | .get_link = ethtool_op_get_link, |
d4e0fe01 AD |
461 | .get_eeprom_len = igbvf_get_eeprom_len, |
462 | .get_eeprom = igbvf_get_eeprom, | |
463 | .set_eeprom = igbvf_set_eeprom, | |
464 | .get_ringparam = igbvf_get_ringparam, | |
465 | .set_ringparam = igbvf_set_ringparam, | |
466 | .get_pauseparam = igbvf_get_pauseparam, | |
467 | .set_pauseparam = igbvf_set_pauseparam, | |
d4e0fe01 | 468 | .self_test = igbvf_diag_test, |
15f0a394 | 469 | .get_sset_count = igbvf_get_sset_count, |
d4e0fe01 | 470 | .get_strings = igbvf_get_strings, |
d4e0fe01 | 471 | .get_ethtool_stats = igbvf_get_ethtool_stats, |
d4e0fe01 AD |
472 | .get_coalesce = igbvf_get_coalesce, |
473 | .set_coalesce = igbvf_set_coalesce, | |
474 | }; | |
475 | ||
476 | void igbvf_set_ethtool_ops(struct net_device *netdev) | |
477 | { | |
7ad24ea4 | 478 | netdev->ethtool_ops = &igbvf_ethtool_ops; |
d4e0fe01 | 479 | } |