1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 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
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27 /* ethtool support for i40e */
28
29 #include "i40e.h"
30 #include "i40e_diag.h"
31
32 struct i40e_stats {
33 char stat_string[ETH_GSTRING_LEN];
34 int sizeof_stat;
35 int stat_offset;
36 };
37
38 #define I40E_STAT(_type, _name, _stat) { \
39 .stat_string = _name, \
40 .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
41 .stat_offset = offsetof(_type, _stat) \
42 }
43 #define I40E_NETDEV_STAT(_net_stat) \
44 I40E_STAT(struct net_device_stats, #_net_stat, _net_stat)
45 #define I40E_PF_STAT(_name, _stat) \
46 I40E_STAT(struct i40e_pf, _name, _stat)
47 #define I40E_VSI_STAT(_name, _stat) \
48 I40E_STAT(struct i40e_vsi, _name, _stat)
49 #define I40E_VEB_STAT(_name, _stat) \
50 I40E_STAT(struct i40e_veb, _name, _stat)
51
52 static const struct i40e_stats i40e_gstrings_net_stats[] = {
53 I40E_NETDEV_STAT(rx_packets),
54 I40E_NETDEV_STAT(tx_packets),
55 I40E_NETDEV_STAT(rx_bytes),
56 I40E_NETDEV_STAT(tx_bytes),
57 I40E_NETDEV_STAT(rx_errors),
58 I40E_NETDEV_STAT(tx_errors),
59 I40E_NETDEV_STAT(rx_dropped),
60 I40E_NETDEV_STAT(tx_dropped),
61 I40E_NETDEV_STAT(collisions),
62 I40E_NETDEV_STAT(rx_length_errors),
63 I40E_NETDEV_STAT(rx_crc_errors),
64 };
65
66 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
67 I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
68 I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
69 I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
70 I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
71 I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
72 I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
73 I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
74 I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
75 I40E_VEB_STAT("rx_discards", stats.rx_discards),
76 I40E_VEB_STAT("tx_discards", stats.tx_discards),
77 I40E_VEB_STAT("tx_errors", stats.tx_errors),
78 I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
79 };
80
81 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
82 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
83 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
84 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
85 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
86 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
87 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
88 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
89 };
90
91 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
92 struct ethtool_rxnfc *cmd);
93
94 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
95 * but they are separate. This device supports Virtualization, and
96 * as such might have several netdevs supporting VMDq and FCoE going
97 * through a single port. The NETDEV_STATs are for individual netdevs
98 * seen at the top of the stack, and the PF_STATs are for the physical
99 * function at the bottom of the stack hosting those netdevs.
100 *
101 * The PF_STATs are appended to the netdev stats only when ethtool -S
102 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
103 */
104 static struct i40e_stats i40e_gstrings_stats[] = {
105 I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
106 I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
107 I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
108 I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
109 I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
110 I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
111 I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
112 I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
113 I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
114 I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
115 I40E_PF_STAT("tx_dropped", stats.eth.tx_discards),
116 I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
117 I40E_PF_STAT("crc_errors", stats.crc_errors),
118 I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
119 I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
120 I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
121 I40E_PF_STAT("tx_timeout", tx_timeout_count),
122 I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
123 I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
124 I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
125 I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
126 I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
127 I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
128 I40E_PF_STAT("rx_size_64", stats.rx_size_64),
129 I40E_PF_STAT("rx_size_127", stats.rx_size_127),
130 I40E_PF_STAT("rx_size_255", stats.rx_size_255),
131 I40E_PF_STAT("rx_size_511", stats.rx_size_511),
132 I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
133 I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
134 I40E_PF_STAT("rx_size_big", stats.rx_size_big),
135 I40E_PF_STAT("tx_size_64", stats.tx_size_64),
136 I40E_PF_STAT("tx_size_127", stats.tx_size_127),
137 I40E_PF_STAT("tx_size_255", stats.tx_size_255),
138 I40E_PF_STAT("tx_size_511", stats.tx_size_511),
139 I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
140 I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
141 I40E_PF_STAT("tx_size_big", stats.tx_size_big),
142 I40E_PF_STAT("rx_undersize", stats.rx_undersize),
143 I40E_PF_STAT("rx_fragments", stats.rx_fragments),
144 I40E_PF_STAT("rx_oversize", stats.rx_oversize),
145 I40E_PF_STAT("rx_jabber", stats.rx_jabber),
146 I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
147 I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
148 I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
149 I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
150 I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
151
152 /* LPI stats */
153 I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
154 I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
155 I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
156 I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
157 };
158
159 #ifdef I40E_FCOE
160 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
161 I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
162 I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
163 I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
164 I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
165 I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
166 I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
167 I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
168 I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
169 };
170
171 #endif /* I40E_FCOE */
172 #define I40E_QUEUE_STATS_LEN(n) \
173 (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
174 * 2 /* Tx and Rx together */ \
175 * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
176 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
177 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
178 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
179 #ifdef I40E_FCOE
180 #define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats)
181 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
182 I40E_FCOE_STATS_LEN + \
183 I40E_MISC_STATS_LEN + \
184 I40E_QUEUE_STATS_LEN((n)))
185 #else
186 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
187 I40E_MISC_STATS_LEN + \
188 I40E_QUEUE_STATS_LEN((n)))
189 #endif /* I40E_FCOE */
190 #define I40E_PFC_STATS_LEN ( \
191 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
192 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
193 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
194 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
195 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
196 / sizeof(u64))
197 #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats)
198 #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \
199 I40E_PFC_STATS_LEN + \
200 I40E_VSI_STATS_LEN((n)))
201
202 enum i40e_ethtool_test_id {
203 I40E_ETH_TEST_REG = 0,
204 I40E_ETH_TEST_EEPROM,
205 I40E_ETH_TEST_INTR,
206 I40E_ETH_TEST_LOOPBACK,
207 I40E_ETH_TEST_LINK,
208 };
209
210 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
211 "Register test (offline)",
212 "Eeprom test (offline)",
213 "Interrupt test (offline)",
214 "Loopback test (offline)",
215 "Link test (on/offline)"
216 };
217
218 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
219
220 /**
221 * i40e_get_settings - Get Link Speed and Duplex settings
222 * @netdev: network interface device structure
223 * @ecmd: ethtool command
224 *
225 * Reports speed/duplex settings based on media_type
226 **/
i40e_get_settings(struct net_device * netdev,struct ethtool_cmd * ecmd)227 static int i40e_get_settings(struct net_device *netdev,
228 struct ethtool_cmd *ecmd)
229 {
230 struct i40e_netdev_priv *np = netdev_priv(netdev);
231 struct i40e_pf *pf = np->vsi->back;
232 struct i40e_hw *hw = &pf->hw;
233 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
234 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
235 u32 link_speed = hw_link_info->link_speed;
236
237 /* hardware is either in 40G mode or 10G mode
238 * NOTE: this section initializes supported and advertising
239 */
240 if (!link_up) {
241 /* link is down and the driver needs to fall back on
242 * device ID to determine what kinds of info to display,
243 * it's mostly a guess that may change when link is up
244 */
245 switch (hw->device_id) {
246 case I40E_DEV_ID_QSFP_A:
247 case I40E_DEV_ID_QSFP_B:
248 case I40E_DEV_ID_QSFP_C:
249 /* pluggable QSFP */
250 ecmd->supported = SUPPORTED_40000baseSR4_Full |
251 SUPPORTED_40000baseCR4_Full |
252 SUPPORTED_40000baseLR4_Full;
253 ecmd->advertising = ADVERTISED_40000baseSR4_Full |
254 ADVERTISED_40000baseCR4_Full |
255 ADVERTISED_40000baseLR4_Full;
256 break;
257 case I40E_DEV_ID_KX_B:
258 /* backplane 40G */
259 ecmd->supported = SUPPORTED_40000baseKR4_Full;
260 ecmd->advertising = ADVERTISED_40000baseKR4_Full;
261 break;
262 case I40E_DEV_ID_KX_C:
263 /* backplane 10G */
264 ecmd->supported = SUPPORTED_10000baseKR_Full;
265 ecmd->advertising = ADVERTISED_10000baseKR_Full;
266 break;
267 default:
268 /* all the rest are 10G/1G */
269 ecmd->supported = SUPPORTED_10000baseT_Full |
270 SUPPORTED_1000baseT_Full;
271 ecmd->advertising = ADVERTISED_10000baseT_Full |
272 ADVERTISED_1000baseT_Full;
273 break;
274 }
275
276 /* skip phy_type use as it is zero when link is down */
277 goto no_valid_phy_type;
278 }
279
280 switch (hw_link_info->phy_type) {
281 case I40E_PHY_TYPE_40GBASE_CR4:
282 case I40E_PHY_TYPE_40GBASE_CR4_CU:
283 ecmd->supported = SUPPORTED_Autoneg |
284 SUPPORTED_40000baseCR4_Full;
285 ecmd->advertising = ADVERTISED_Autoneg |
286 ADVERTISED_40000baseCR4_Full;
287 break;
288 case I40E_PHY_TYPE_40GBASE_KR4:
289 ecmd->supported = SUPPORTED_Autoneg |
290 SUPPORTED_40000baseKR4_Full;
291 ecmd->advertising = ADVERTISED_Autoneg |
292 ADVERTISED_40000baseKR4_Full;
293 break;
294 case I40E_PHY_TYPE_40GBASE_SR4:
295 case I40E_PHY_TYPE_XLPPI:
296 case I40E_PHY_TYPE_XLAUI:
297 ecmd->supported = SUPPORTED_40000baseSR4_Full;
298 break;
299 case I40E_PHY_TYPE_40GBASE_LR4:
300 ecmd->supported = SUPPORTED_40000baseLR4_Full;
301 break;
302 case I40E_PHY_TYPE_10GBASE_KX4:
303 ecmd->supported = SUPPORTED_Autoneg |
304 SUPPORTED_10000baseKX4_Full;
305 ecmd->advertising = ADVERTISED_Autoneg |
306 ADVERTISED_10000baseKX4_Full;
307 break;
308 case I40E_PHY_TYPE_10GBASE_KR:
309 ecmd->supported = SUPPORTED_Autoneg |
310 SUPPORTED_10000baseKR_Full;
311 ecmd->advertising = ADVERTISED_Autoneg |
312 ADVERTISED_10000baseKR_Full;
313 break;
314 case I40E_PHY_TYPE_10GBASE_SR:
315 case I40E_PHY_TYPE_10GBASE_LR:
316 case I40E_PHY_TYPE_1000BASE_SX:
317 case I40E_PHY_TYPE_1000BASE_LX:
318 ecmd->supported = SUPPORTED_10000baseT_Full;
319 ecmd->supported |= SUPPORTED_1000baseT_Full;
320 break;
321 case I40E_PHY_TYPE_10GBASE_CR1_CU:
322 case I40E_PHY_TYPE_10GBASE_CR1:
323 case I40E_PHY_TYPE_10GBASE_T:
324 ecmd->supported = SUPPORTED_Autoneg |
325 SUPPORTED_10000baseT_Full;
326 ecmd->advertising = ADVERTISED_Autoneg |
327 ADVERTISED_10000baseT_Full;
328 break;
329 case I40E_PHY_TYPE_XAUI:
330 case I40E_PHY_TYPE_XFI:
331 case I40E_PHY_TYPE_SFI:
332 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
333 ecmd->supported = SUPPORTED_10000baseT_Full;
334 break;
335 case I40E_PHY_TYPE_1000BASE_KX:
336 case I40E_PHY_TYPE_1000BASE_T:
337 ecmd->supported = SUPPORTED_Autoneg |
338 SUPPORTED_1000baseT_Full;
339 ecmd->advertising = ADVERTISED_Autoneg |
340 ADVERTISED_1000baseT_Full;
341 break;
342 case I40E_PHY_TYPE_100BASE_TX:
343 ecmd->supported = SUPPORTED_Autoneg |
344 SUPPORTED_100baseT_Full;
345 ecmd->advertising = ADVERTISED_Autoneg |
346 ADVERTISED_100baseT_Full;
347 break;
348 case I40E_PHY_TYPE_SGMII:
349 ecmd->supported = SUPPORTED_Autoneg |
350 SUPPORTED_1000baseT_Full |
351 SUPPORTED_100baseT_Full;
352 ecmd->advertising = ADVERTISED_Autoneg |
353 ADVERTISED_1000baseT_Full |
354 ADVERTISED_100baseT_Full;
355 break;
356 default:
357 /* if we got here and link is up something bad is afoot */
358 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
359 hw_link_info->phy_type);
360 }
361
362 no_valid_phy_type:
363 /* this is if autoneg is enabled or disabled */
364 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
365 AUTONEG_ENABLE : AUTONEG_DISABLE);
366
367 switch (hw->phy.media_type) {
368 case I40E_MEDIA_TYPE_BACKPLANE:
369 ecmd->supported |= SUPPORTED_Autoneg |
370 SUPPORTED_Backplane;
371 ecmd->advertising |= ADVERTISED_Autoneg |
372 ADVERTISED_Backplane;
373 ecmd->port = PORT_NONE;
374 break;
375 case I40E_MEDIA_TYPE_BASET:
376 ecmd->supported |= SUPPORTED_TP;
377 ecmd->advertising |= ADVERTISED_TP;
378 ecmd->port = PORT_TP;
379 break;
380 case I40E_MEDIA_TYPE_DA:
381 case I40E_MEDIA_TYPE_CX4:
382 ecmd->supported |= SUPPORTED_FIBRE;
383 ecmd->advertising |= ADVERTISED_FIBRE;
384 ecmd->port = PORT_DA;
385 break;
386 case I40E_MEDIA_TYPE_FIBER:
387 ecmd->supported |= SUPPORTED_FIBRE;
388 ecmd->port = PORT_FIBRE;
389 break;
390 case I40E_MEDIA_TYPE_UNKNOWN:
391 default:
392 ecmd->port = PORT_OTHER;
393 break;
394 }
395
396 ecmd->transceiver = XCVR_EXTERNAL;
397
398 ecmd->supported |= SUPPORTED_Pause;
399
400 switch (hw->fc.current_mode) {
401 case I40E_FC_FULL:
402 ecmd->advertising |= ADVERTISED_Pause;
403 break;
404 case I40E_FC_TX_PAUSE:
405 ecmd->advertising |= ADVERTISED_Asym_Pause;
406 break;
407 case I40E_FC_RX_PAUSE:
408 ecmd->advertising |= (ADVERTISED_Pause |
409 ADVERTISED_Asym_Pause);
410 break;
411 default:
412 ecmd->advertising &= ~(ADVERTISED_Pause |
413 ADVERTISED_Asym_Pause);
414 break;
415 }
416
417 if (link_up) {
418 switch (link_speed) {
419 case I40E_LINK_SPEED_40GB:
420 /* need a SPEED_40000 in ethtool.h */
421 ethtool_cmd_speed_set(ecmd, 40000);
422 break;
423 case I40E_LINK_SPEED_10GB:
424 ethtool_cmd_speed_set(ecmd, SPEED_10000);
425 break;
426 case I40E_LINK_SPEED_1GB:
427 ethtool_cmd_speed_set(ecmd, SPEED_1000);
428 break;
429 default:
430 break;
431 }
432 ecmd->duplex = DUPLEX_FULL;
433 } else {
434 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
435 ecmd->duplex = DUPLEX_UNKNOWN;
436 }
437
438 return 0;
439 }
440
441 /**
442 * i40e_set_settings - Set Speed and Duplex
443 * @netdev: network interface device structure
444 * @ecmd: ethtool command
445 *
446 * Set speed/duplex per media_types advertised/forced
447 **/
i40e_set_settings(struct net_device * netdev,struct ethtool_cmd * ecmd)448 static int i40e_set_settings(struct net_device *netdev,
449 struct ethtool_cmd *ecmd)
450 {
451 struct i40e_netdev_priv *np = netdev_priv(netdev);
452 struct i40e_aq_get_phy_abilities_resp abilities;
453 struct i40e_aq_set_phy_config config;
454 struct i40e_pf *pf = np->vsi->back;
455 struct i40e_vsi *vsi = np->vsi;
456 struct i40e_hw *hw = &pf->hw;
457 struct ethtool_cmd safe_ecmd;
458 i40e_status status = 0;
459 bool change = false;
460 int err = 0;
461 u8 autoneg;
462 u32 advertise;
463
464 if (vsi != pf->vsi[pf->lan_vsi])
465 return -EOPNOTSUPP;
466
467 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
468 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
469 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
470 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
471 return -EOPNOTSUPP;
472
473 /* get our own copy of the bits to check against */
474 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
475 i40e_get_settings(netdev, &safe_ecmd);
476
477 /* save autoneg and speed out of ecmd */
478 autoneg = ecmd->autoneg;
479 advertise = ecmd->advertising;
480
481 /* set autoneg and speed back to what they currently are */
482 ecmd->autoneg = safe_ecmd.autoneg;
483 ecmd->advertising = safe_ecmd.advertising;
484
485 ecmd->cmd = safe_ecmd.cmd;
486 /* If ecmd and safe_ecmd are not the same now, then they are
487 * trying to set something that we do not support
488 */
489 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
490 return -EOPNOTSUPP;
491
492 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
493 usleep_range(1000, 2000);
494
495 /* Get the current phy config */
496 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
497 NULL);
498 if (status)
499 return -EAGAIN;
500
501 /* Copy abilities to config in case autoneg is not
502 * set below
503 */
504 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
505 config.abilities = abilities.abilities;
506
507 /* Check autoneg */
508 if (autoneg == AUTONEG_ENABLE) {
509 /* If autoneg is not supported, return error */
510 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
511 netdev_info(netdev, "Autoneg not supported on this phy\n");
512 return -EINVAL;
513 }
514 /* If autoneg was not already enabled */
515 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
516 config.abilities = abilities.abilities |
517 I40E_AQ_PHY_ENABLE_AN;
518 change = true;
519 }
520 } else {
521 /* If autoneg is supported 10GBASE_T is the only phy that
522 * can disable it, so otherwise return error
523 */
524 if (safe_ecmd.supported & SUPPORTED_Autoneg &&
525 hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
526 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
527 return -EINVAL;
528 }
529 /* If autoneg is currently enabled */
530 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
531 config.abilities = abilities.abilities |
532 ~I40E_AQ_PHY_ENABLE_AN;
533 change = true;
534 }
535 }
536
537 if (advertise & ~safe_ecmd.supported)
538 return -EINVAL;
539
540 if (advertise & ADVERTISED_100baseT_Full)
541 config.link_speed |= I40E_LINK_SPEED_100MB;
542 if (advertise & ADVERTISED_1000baseT_Full ||
543 advertise & ADVERTISED_1000baseKX_Full)
544 config.link_speed |= I40E_LINK_SPEED_1GB;
545 if (advertise & ADVERTISED_10000baseT_Full ||
546 advertise & ADVERTISED_10000baseKX4_Full ||
547 advertise & ADVERTISED_10000baseKR_Full)
548 config.link_speed |= I40E_LINK_SPEED_10GB;
549 if (advertise & ADVERTISED_40000baseKR4_Full ||
550 advertise & ADVERTISED_40000baseCR4_Full ||
551 advertise & ADVERTISED_40000baseSR4_Full ||
552 advertise & ADVERTISED_40000baseLR4_Full)
553 config.link_speed |= I40E_LINK_SPEED_40GB;
554
555 if (change || (abilities.link_speed != config.link_speed)) {
556 /* copy over the rest of the abilities */
557 config.phy_type = abilities.phy_type;
558 config.eee_capability = abilities.eee_capability;
559 config.eeer = abilities.eeer_val;
560 config.low_power_ctrl = abilities.d3_lpan;
561
562 /* set link and auto negotiation so changes take effect */
563 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
564 /* If link is up put link down */
565 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
566 /* Tell the OS link is going down, the link will go
567 * back up when fw says it is ready asynchronously
568 */
569 netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n");
570 netif_carrier_off(netdev);
571 netif_tx_stop_all_queues(netdev);
572 }
573
574 /* make the aq call */
575 status = i40e_aq_set_phy_config(hw, &config, NULL);
576 if (status) {
577 netdev_info(netdev, "Set phy config failed with error %d.\n",
578 status);
579 return -EAGAIN;
580 }
581
582 status = i40e_update_link_info(hw, true);
583 if (status)
584 netdev_info(netdev, "Updating link info failed with error %d\n",
585 status);
586
587 } else {
588 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
589 }
590
591 return err;
592 }
593
i40e_nway_reset(struct net_device * netdev)594 static int i40e_nway_reset(struct net_device *netdev)
595 {
596 /* restart autonegotiation */
597 struct i40e_netdev_priv *np = netdev_priv(netdev);
598 struct i40e_pf *pf = np->vsi->back;
599 struct i40e_hw *hw = &pf->hw;
600 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
601 i40e_status ret = 0;
602
603 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
604 if (ret) {
605 netdev_info(netdev, "link restart failed, aq_err=%d\n",
606 pf->hw.aq.asq_last_status);
607 return -EIO;
608 }
609
610 return 0;
611 }
612
613 /**
614 * i40e_get_pauseparam - Get Flow Control status
615 * Return tx/rx-pause status
616 **/
i40e_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)617 static void i40e_get_pauseparam(struct net_device *netdev,
618 struct ethtool_pauseparam *pause)
619 {
620 struct i40e_netdev_priv *np = netdev_priv(netdev);
621 struct i40e_pf *pf = np->vsi->back;
622 struct i40e_hw *hw = &pf->hw;
623 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
624
625 pause->autoneg =
626 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
627 AUTONEG_ENABLE : AUTONEG_DISABLE);
628
629 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
630 pause->rx_pause = 1;
631 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
632 pause->tx_pause = 1;
633 } else if (hw->fc.current_mode == I40E_FC_FULL) {
634 pause->rx_pause = 1;
635 pause->tx_pause = 1;
636 }
637 }
638
639 /**
640 * i40e_set_pauseparam - Set Flow Control parameter
641 * @netdev: network interface device structure
642 * @pause: return tx/rx flow control status
643 **/
i40e_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)644 static int i40e_set_pauseparam(struct net_device *netdev,
645 struct ethtool_pauseparam *pause)
646 {
647 struct i40e_netdev_priv *np = netdev_priv(netdev);
648 struct i40e_pf *pf = np->vsi->back;
649 struct i40e_vsi *vsi = np->vsi;
650 struct i40e_hw *hw = &pf->hw;
651 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
652 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
653 i40e_status status;
654 u8 aq_failures;
655 int err = 0;
656
657 if (vsi != pf->vsi[pf->lan_vsi])
658 return -EOPNOTSUPP;
659
660 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
661 AUTONEG_ENABLE : AUTONEG_DISABLE)) {
662 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
663 return -EOPNOTSUPP;
664 }
665
666 /* If we have link and don't have autoneg */
667 if (!test_bit(__I40E_DOWN, &pf->state) &&
668 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
669 /* Send message that it might not necessarily work*/
670 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
671 }
672
673 if (hw->fc.current_mode == I40E_FC_PFC) {
674 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
675 return -EOPNOTSUPP;
676 }
677
678 if (pause->rx_pause && pause->tx_pause)
679 hw->fc.requested_mode = I40E_FC_FULL;
680 else if (pause->rx_pause && !pause->tx_pause)
681 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
682 else if (!pause->rx_pause && pause->tx_pause)
683 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
684 else if (!pause->rx_pause && !pause->tx_pause)
685 hw->fc.requested_mode = I40E_FC_NONE;
686 else
687 return -EINVAL;
688
689 /* Tell the OS link is going down, the link will go back up when fw
690 * says it is ready asynchronously
691 */
692 netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n");
693 netif_carrier_off(netdev);
694 netif_tx_stop_all_queues(netdev);
695
696 /* Set the fc mode and only restart an if link is up*/
697 status = i40e_set_fc(hw, &aq_failures, link_up);
698
699 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
700 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n",
701 status, hw->aq.asq_last_status);
702 err = -EAGAIN;
703 }
704 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
705 netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n",
706 status, hw->aq.asq_last_status);
707 err = -EAGAIN;
708 }
709 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
710 netdev_info(netdev, "Set fc failed on the update_link_info call with error %d and status %d\n",
711 status, hw->aq.asq_last_status);
712 err = -EAGAIN;
713 }
714
715 if (!test_bit(__I40E_DOWN, &pf->state)) {
716 /* Give it a little more time to try to come back */
717 msleep(75);
718 if (!test_bit(__I40E_DOWN, &pf->state))
719 return i40e_nway_reset(netdev);
720 }
721
722 return err;
723 }
724
i40e_get_msglevel(struct net_device * netdev)725 static u32 i40e_get_msglevel(struct net_device *netdev)
726 {
727 struct i40e_netdev_priv *np = netdev_priv(netdev);
728 struct i40e_pf *pf = np->vsi->back;
729
730 return pf->msg_enable;
731 }
732
i40e_set_msglevel(struct net_device * netdev,u32 data)733 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
734 {
735 struct i40e_netdev_priv *np = netdev_priv(netdev);
736 struct i40e_pf *pf = np->vsi->back;
737
738 if (I40E_DEBUG_USER & data)
739 pf->hw.debug_mask = data;
740 pf->msg_enable = data;
741 }
742
i40e_get_regs_len(struct net_device * netdev)743 static int i40e_get_regs_len(struct net_device *netdev)
744 {
745 int reg_count = 0;
746 int i;
747
748 for (i = 0; i40e_reg_list[i].offset != 0; i++)
749 reg_count += i40e_reg_list[i].elements;
750
751 return reg_count * sizeof(u32);
752 }
753
i40e_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)754 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
755 void *p)
756 {
757 struct i40e_netdev_priv *np = netdev_priv(netdev);
758 struct i40e_pf *pf = np->vsi->back;
759 struct i40e_hw *hw = &pf->hw;
760 u32 *reg_buf = p;
761 int i, j, ri;
762 u32 reg;
763
764 /* Tell ethtool which driver-version-specific regs output we have.
765 *
766 * At some point, if we have ethtool doing special formatting of
767 * this data, it will rely on this version number to know how to
768 * interpret things. Hence, this needs to be updated if/when the
769 * diags register table is changed.
770 */
771 regs->version = 1;
772
773 /* loop through the diags reg table for what to print */
774 ri = 0;
775 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
776 for (j = 0; j < i40e_reg_list[i].elements; j++) {
777 reg = i40e_reg_list[i].offset
778 + (j * i40e_reg_list[i].stride);
779 reg_buf[ri++] = rd32(hw, reg);
780 }
781 }
782
783 }
784
i40e_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)785 static int i40e_get_eeprom(struct net_device *netdev,
786 struct ethtool_eeprom *eeprom, u8 *bytes)
787 {
788 struct i40e_netdev_priv *np = netdev_priv(netdev);
789 struct i40e_hw *hw = &np->vsi->back->hw;
790 struct i40e_pf *pf = np->vsi->back;
791 int ret_val = 0, len;
792 u8 *eeprom_buff;
793 u16 i, sectors;
794 bool last;
795 u32 magic;
796
797 #define I40E_NVM_SECTOR_SIZE 4096
798 if (eeprom->len == 0)
799 return -EINVAL;
800
801 /* check for NVMUpdate access method */
802 magic = hw->vendor_id | (hw->device_id << 16);
803 if (eeprom->magic && eeprom->magic != magic) {
804 int errno;
805
806 /* make sure it is the right magic for NVMUpdate */
807 if ((eeprom->magic >> 16) != hw->device_id)
808 return -EINVAL;
809
810 ret_val = i40e_nvmupd_command(hw,
811 (struct i40e_nvm_access *)eeprom,
812 bytes, &errno);
813 if (ret_val)
814 dev_info(&pf->pdev->dev,
815 "NVMUpdate read failed err=%d status=0x%x\n",
816 ret_val, hw->aq.asq_last_status);
817
818 return errno;
819 }
820
821 /* normal ethtool get_eeprom support */
822 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
823
824 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
825 if (!eeprom_buff)
826 return -ENOMEM;
827
828 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
829 if (ret_val) {
830 dev_info(&pf->pdev->dev,
831 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
832 ret_val, hw->aq.asq_last_status);
833 goto free_buff;
834 }
835
836 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
837 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
838 len = I40E_NVM_SECTOR_SIZE;
839 last = false;
840 for (i = 0; i < sectors; i++) {
841 if (i == (sectors - 1)) {
842 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
843 last = true;
844 }
845 ret_val = i40e_aq_read_nvm(hw, 0x0,
846 eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
847 len,
848 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
849 last, NULL);
850 if (ret_val) {
851 dev_info(&pf->pdev->dev,
852 "read NVM failed err=%d status=0x%x\n",
853 ret_val, hw->aq.asq_last_status);
854 goto release_nvm;
855 }
856 }
857
858 release_nvm:
859 i40e_release_nvm(hw);
860 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
861 free_buff:
862 kfree(eeprom_buff);
863 return ret_val;
864 }
865
i40e_get_eeprom_len(struct net_device * netdev)866 static int i40e_get_eeprom_len(struct net_device *netdev)
867 {
868 struct i40e_netdev_priv *np = netdev_priv(netdev);
869 struct i40e_hw *hw = &np->vsi->back->hw;
870 u32 val;
871
872 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
873 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
874 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
875 /* register returns value in power of 2, 64Kbyte chunks. */
876 val = (64 * 1024) * (1 << val);
877 return val;
878 }
879
i40e_set_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)880 static int i40e_set_eeprom(struct net_device *netdev,
881 struct ethtool_eeprom *eeprom, u8 *bytes)
882 {
883 struct i40e_netdev_priv *np = netdev_priv(netdev);
884 struct i40e_hw *hw = &np->vsi->back->hw;
885 struct i40e_pf *pf = np->vsi->back;
886 int ret_val = 0;
887 int errno;
888 u32 magic;
889
890 /* normal ethtool set_eeprom is not supported */
891 magic = hw->vendor_id | (hw->device_id << 16);
892 if (eeprom->magic == magic)
893 return -EOPNOTSUPP;
894
895 /* check for NVMUpdate access method */
896 if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
897 return -EINVAL;
898
899 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
900 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
901 return -EBUSY;
902
903 ret_val = i40e_nvmupd_command(hw, (struct i40e_nvm_access *)eeprom,
904 bytes, &errno);
905 if (ret_val)
906 dev_info(&pf->pdev->dev,
907 "NVMUpdate write failed err=%d status=0x%x\n",
908 ret_val, hw->aq.asq_last_status);
909
910 return errno;
911 }
912
i40e_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)913 static void i40e_get_drvinfo(struct net_device *netdev,
914 struct ethtool_drvinfo *drvinfo)
915 {
916 struct i40e_netdev_priv *np = netdev_priv(netdev);
917 struct i40e_vsi *vsi = np->vsi;
918 struct i40e_pf *pf = vsi->back;
919
920 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
921 strlcpy(drvinfo->version, i40e_driver_version_str,
922 sizeof(drvinfo->version));
923 strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw),
924 sizeof(drvinfo->fw_version));
925 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
926 sizeof(drvinfo->bus_info));
927 }
928
i40e_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring)929 static void i40e_get_ringparam(struct net_device *netdev,
930 struct ethtool_ringparam *ring)
931 {
932 struct i40e_netdev_priv *np = netdev_priv(netdev);
933 struct i40e_pf *pf = np->vsi->back;
934 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
935
936 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
937 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
938 ring->rx_mini_max_pending = 0;
939 ring->rx_jumbo_max_pending = 0;
940 ring->rx_pending = vsi->rx_rings[0]->count;
941 ring->tx_pending = vsi->tx_rings[0]->count;
942 ring->rx_mini_pending = 0;
943 ring->rx_jumbo_pending = 0;
944 }
945
i40e_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring)946 static int i40e_set_ringparam(struct net_device *netdev,
947 struct ethtool_ringparam *ring)
948 {
949 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
950 struct i40e_netdev_priv *np = netdev_priv(netdev);
951 struct i40e_vsi *vsi = np->vsi;
952 struct i40e_pf *pf = vsi->back;
953 u32 new_rx_count, new_tx_count;
954 int i, err = 0;
955
956 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
957 return -EINVAL;
958
959 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
960 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
961 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
962 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
963 netdev_info(netdev,
964 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
965 ring->tx_pending, ring->rx_pending,
966 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
967 return -EINVAL;
968 }
969
970 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
971 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
972
973 /* if nothing to do return success */
974 if ((new_tx_count == vsi->tx_rings[0]->count) &&
975 (new_rx_count == vsi->rx_rings[0]->count))
976 return 0;
977
978 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
979 usleep_range(1000, 2000);
980
981 if (!netif_running(vsi->netdev)) {
982 /* simple case - set for the next time the netdev is started */
983 for (i = 0; i < vsi->num_queue_pairs; i++) {
984 vsi->tx_rings[i]->count = new_tx_count;
985 vsi->rx_rings[i]->count = new_rx_count;
986 }
987 goto done;
988 }
989
990 /* We can't just free everything and then setup again,
991 * because the ISRs in MSI-X mode get passed pointers
992 * to the Tx and Rx ring structs.
993 */
994
995 /* alloc updated Tx resources */
996 if (new_tx_count != vsi->tx_rings[0]->count) {
997 netdev_info(netdev,
998 "Changing Tx descriptor count from %d to %d.\n",
999 vsi->tx_rings[0]->count, new_tx_count);
1000 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1001 sizeof(struct i40e_ring), GFP_KERNEL);
1002 if (!tx_rings) {
1003 err = -ENOMEM;
1004 goto done;
1005 }
1006
1007 for (i = 0; i < vsi->num_queue_pairs; i++) {
1008 /* clone ring and setup updated count */
1009 tx_rings[i] = *vsi->tx_rings[i];
1010 tx_rings[i].count = new_tx_count;
1011 err = i40e_setup_tx_descriptors(&tx_rings[i]);
1012 if (err) {
1013 while (i) {
1014 i--;
1015 i40e_free_tx_resources(&tx_rings[i]);
1016 }
1017 kfree(tx_rings);
1018 tx_rings = NULL;
1019
1020 goto done;
1021 }
1022 }
1023 }
1024
1025 /* alloc updated Rx resources */
1026 if (new_rx_count != vsi->rx_rings[0]->count) {
1027 netdev_info(netdev,
1028 "Changing Rx descriptor count from %d to %d\n",
1029 vsi->rx_rings[0]->count, new_rx_count);
1030 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1031 sizeof(struct i40e_ring), GFP_KERNEL);
1032 if (!rx_rings) {
1033 err = -ENOMEM;
1034 goto free_tx;
1035 }
1036
1037 for (i = 0; i < vsi->num_queue_pairs; i++) {
1038 /* clone ring and setup updated count */
1039 rx_rings[i] = *vsi->rx_rings[i];
1040 rx_rings[i].count = new_rx_count;
1041 err = i40e_setup_rx_descriptors(&rx_rings[i]);
1042 if (err) {
1043 while (i) {
1044 i--;
1045 i40e_free_rx_resources(&rx_rings[i]);
1046 }
1047 kfree(rx_rings);
1048 rx_rings = NULL;
1049
1050 goto free_tx;
1051 }
1052 }
1053 }
1054
1055 /* Bring interface down, copy in the new ring info,
1056 * then restore the interface
1057 */
1058 i40e_down(vsi);
1059
1060 if (tx_rings) {
1061 for (i = 0; i < vsi->num_queue_pairs; i++) {
1062 i40e_free_tx_resources(vsi->tx_rings[i]);
1063 *vsi->tx_rings[i] = tx_rings[i];
1064 }
1065 kfree(tx_rings);
1066 tx_rings = NULL;
1067 }
1068
1069 if (rx_rings) {
1070 for (i = 0; i < vsi->num_queue_pairs; i++) {
1071 i40e_free_rx_resources(vsi->rx_rings[i]);
1072 *vsi->rx_rings[i] = rx_rings[i];
1073 }
1074 kfree(rx_rings);
1075 rx_rings = NULL;
1076 }
1077
1078 i40e_up(vsi);
1079
1080 free_tx:
1081 /* error cleanup if the Rx allocations failed after getting Tx */
1082 if (tx_rings) {
1083 for (i = 0; i < vsi->num_queue_pairs; i++)
1084 i40e_free_tx_resources(&tx_rings[i]);
1085 kfree(tx_rings);
1086 tx_rings = NULL;
1087 }
1088
1089 done:
1090 clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1091
1092 return err;
1093 }
1094
i40e_get_sset_count(struct net_device * netdev,int sset)1095 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1096 {
1097 struct i40e_netdev_priv *np = netdev_priv(netdev);
1098 struct i40e_vsi *vsi = np->vsi;
1099 struct i40e_pf *pf = vsi->back;
1100
1101 switch (sset) {
1102 case ETH_SS_TEST:
1103 return I40E_TEST_LEN;
1104 case ETH_SS_STATS:
1105 if (vsi == pf->vsi[pf->lan_vsi]) {
1106 int len = I40E_PF_STATS_LEN(netdev);
1107
1108 if (pf->lan_veb != I40E_NO_VEB)
1109 len += I40E_VEB_STATS_LEN;
1110 return len;
1111 } else {
1112 return I40E_VSI_STATS_LEN(netdev);
1113 }
1114 default:
1115 return -EOPNOTSUPP;
1116 }
1117 }
1118
i40e_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)1119 static void i40e_get_ethtool_stats(struct net_device *netdev,
1120 struct ethtool_stats *stats, u64 *data)
1121 {
1122 struct i40e_netdev_priv *np = netdev_priv(netdev);
1123 struct i40e_ring *tx_ring, *rx_ring;
1124 struct i40e_vsi *vsi = np->vsi;
1125 struct i40e_pf *pf = vsi->back;
1126 int i = 0;
1127 char *p;
1128 int j;
1129 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1130 unsigned int start;
1131
1132 i40e_update_stats(vsi);
1133
1134 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1135 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1136 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1137 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1138 }
1139 for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1140 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1141 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1142 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1143 }
1144 #ifdef I40E_FCOE
1145 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1146 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1147 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1148 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1149 }
1150 #endif
1151 rcu_read_lock();
1152 for (j = 0; j < vsi->num_queue_pairs; j++) {
1153 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1154
1155 if (!tx_ring)
1156 continue;
1157
1158 /* process Tx ring statistics */
1159 do {
1160 start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1161 data[i] = tx_ring->stats.packets;
1162 data[i + 1] = tx_ring->stats.bytes;
1163 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1164 i += 2;
1165
1166 /* Rx ring is the 2nd half of the queue pair */
1167 rx_ring = &tx_ring[1];
1168 do {
1169 start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1170 data[i] = rx_ring->stats.packets;
1171 data[i + 1] = rx_ring->stats.bytes;
1172 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1173 i += 2;
1174 }
1175 rcu_read_unlock();
1176 if (vsi != pf->vsi[pf->lan_vsi])
1177 return;
1178
1179 if (pf->lan_veb != I40E_NO_VEB) {
1180 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1181 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1182 p = (char *)veb;
1183 p += i40e_gstrings_veb_stats[j].stat_offset;
1184 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1185 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1186 }
1187 }
1188 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1189 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1190 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1191 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1192 }
1193 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1194 data[i++] = pf->stats.priority_xon_tx[j];
1195 data[i++] = pf->stats.priority_xoff_tx[j];
1196 }
1197 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1198 data[i++] = pf->stats.priority_xon_rx[j];
1199 data[i++] = pf->stats.priority_xoff_rx[j];
1200 }
1201 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1202 data[i++] = pf->stats.priority_xon_2_xoff[j];
1203 }
1204
i40e_get_strings(struct net_device * netdev,u32 stringset,u8 * data)1205 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1206 u8 *data)
1207 {
1208 struct i40e_netdev_priv *np = netdev_priv(netdev);
1209 struct i40e_vsi *vsi = np->vsi;
1210 struct i40e_pf *pf = vsi->back;
1211 char *p = (char *)data;
1212 int i;
1213
1214 switch (stringset) {
1215 case ETH_SS_TEST:
1216 for (i = 0; i < I40E_TEST_LEN; i++) {
1217 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1218 data += ETH_GSTRING_LEN;
1219 }
1220 break;
1221 case ETH_SS_STATS:
1222 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1223 snprintf(p, ETH_GSTRING_LEN, "%s",
1224 i40e_gstrings_net_stats[i].stat_string);
1225 p += ETH_GSTRING_LEN;
1226 }
1227 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1228 snprintf(p, ETH_GSTRING_LEN, "%s",
1229 i40e_gstrings_misc_stats[i].stat_string);
1230 p += ETH_GSTRING_LEN;
1231 }
1232 #ifdef I40E_FCOE
1233 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1234 snprintf(p, ETH_GSTRING_LEN, "%s",
1235 i40e_gstrings_fcoe_stats[i].stat_string);
1236 p += ETH_GSTRING_LEN;
1237 }
1238 #endif
1239 for (i = 0; i < vsi->num_queue_pairs; i++) {
1240 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1241 p += ETH_GSTRING_LEN;
1242 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1243 p += ETH_GSTRING_LEN;
1244 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1245 p += ETH_GSTRING_LEN;
1246 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1247 p += ETH_GSTRING_LEN;
1248 }
1249 if (vsi != pf->vsi[pf->lan_vsi])
1250 return;
1251
1252 if (pf->lan_veb != I40E_NO_VEB) {
1253 for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1254 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1255 i40e_gstrings_veb_stats[i].stat_string);
1256 p += ETH_GSTRING_LEN;
1257 }
1258 }
1259 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1260 snprintf(p, ETH_GSTRING_LEN, "port.%s",
1261 i40e_gstrings_stats[i].stat_string);
1262 p += ETH_GSTRING_LEN;
1263 }
1264 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1265 snprintf(p, ETH_GSTRING_LEN,
1266 "port.tx_priority_%u_xon", i);
1267 p += ETH_GSTRING_LEN;
1268 snprintf(p, ETH_GSTRING_LEN,
1269 "port.tx_priority_%u_xoff", i);
1270 p += ETH_GSTRING_LEN;
1271 }
1272 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1273 snprintf(p, ETH_GSTRING_LEN,
1274 "port.rx_priority_%u_xon", i);
1275 p += ETH_GSTRING_LEN;
1276 snprintf(p, ETH_GSTRING_LEN,
1277 "port.rx_priority_%u_xoff", i);
1278 p += ETH_GSTRING_LEN;
1279 }
1280 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1281 snprintf(p, ETH_GSTRING_LEN,
1282 "port.rx_priority_%u_xon_2_xoff", i);
1283 p += ETH_GSTRING_LEN;
1284 }
1285 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1286 break;
1287 }
1288 }
1289
i40e_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)1290 static int i40e_get_ts_info(struct net_device *dev,
1291 struct ethtool_ts_info *info)
1292 {
1293 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1294
1295 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1296 SOF_TIMESTAMPING_RX_SOFTWARE |
1297 SOF_TIMESTAMPING_SOFTWARE |
1298 SOF_TIMESTAMPING_TX_HARDWARE |
1299 SOF_TIMESTAMPING_RX_HARDWARE |
1300 SOF_TIMESTAMPING_RAW_HARDWARE;
1301
1302 if (pf->ptp_clock)
1303 info->phc_index = ptp_clock_index(pf->ptp_clock);
1304 else
1305 info->phc_index = -1;
1306
1307 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
1308
1309 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1310 (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
1311 (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
1312 (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
1313 (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
1314 (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
1315 (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
1316 (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
1317 (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
1318 (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
1319 (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
1320 (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
1321
1322 return 0;
1323 }
1324
i40e_link_test(struct net_device * netdev,u64 * data)1325 static int i40e_link_test(struct net_device *netdev, u64 *data)
1326 {
1327 struct i40e_netdev_priv *np = netdev_priv(netdev);
1328 struct i40e_pf *pf = np->vsi->back;
1329
1330 netif_info(pf, hw, netdev, "link test\n");
1331 if (i40e_get_link_status(&pf->hw))
1332 *data = 0;
1333 else
1334 *data = 1;
1335
1336 return *data;
1337 }
1338
i40e_reg_test(struct net_device * netdev,u64 * data)1339 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1340 {
1341 struct i40e_netdev_priv *np = netdev_priv(netdev);
1342 struct i40e_pf *pf = np->vsi->back;
1343
1344 netif_info(pf, hw, netdev, "register test\n");
1345 *data = i40e_diag_reg_test(&pf->hw);
1346
1347 return *data;
1348 }
1349
i40e_eeprom_test(struct net_device * netdev,u64 * data)1350 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1351 {
1352 struct i40e_netdev_priv *np = netdev_priv(netdev);
1353 struct i40e_pf *pf = np->vsi->back;
1354
1355 netif_info(pf, hw, netdev, "eeprom test\n");
1356 *data = i40e_diag_eeprom_test(&pf->hw);
1357
1358 return *data;
1359 }
1360
i40e_intr_test(struct net_device * netdev,u64 * data)1361 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1362 {
1363 struct i40e_netdev_priv *np = netdev_priv(netdev);
1364 struct i40e_pf *pf = np->vsi->back;
1365 u16 swc_old = pf->sw_int_count;
1366
1367 netif_info(pf, hw, netdev, "interrupt test\n");
1368 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1369 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1370 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK));
1371 usleep_range(1000, 2000);
1372 *data = (swc_old == pf->sw_int_count);
1373
1374 return *data;
1375 }
1376
i40e_loopback_test(struct net_device * netdev,u64 * data)1377 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1378 {
1379 struct i40e_netdev_priv *np = netdev_priv(netdev);
1380 struct i40e_pf *pf = np->vsi->back;
1381
1382 netif_info(pf, hw, netdev, "loopback test not implemented\n");
1383 *data = 0;
1384
1385 return *data;
1386 }
1387
i40e_diag_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)1388 static void i40e_diag_test(struct net_device *netdev,
1389 struct ethtool_test *eth_test, u64 *data)
1390 {
1391 struct i40e_netdev_priv *np = netdev_priv(netdev);
1392 struct i40e_pf *pf = np->vsi->back;
1393
1394 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1395 /* Offline tests */
1396 netif_info(pf, drv, netdev, "offline testing starting\n");
1397
1398 set_bit(__I40E_TESTING, &pf->state);
1399
1400 /* Link test performed before hardware reset
1401 * so autoneg doesn't interfere with test result
1402 */
1403 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1404 eth_test->flags |= ETH_TEST_FL_FAILED;
1405
1406 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1407 eth_test->flags |= ETH_TEST_FL_FAILED;
1408
1409 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1410 eth_test->flags |= ETH_TEST_FL_FAILED;
1411
1412 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1413 eth_test->flags |= ETH_TEST_FL_FAILED;
1414
1415 /* run reg test last, a reset is required after it */
1416 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1417 eth_test->flags |= ETH_TEST_FL_FAILED;
1418
1419 clear_bit(__I40E_TESTING, &pf->state);
1420 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
1421 } else {
1422 /* Online tests */
1423 netif_info(pf, drv, netdev, "online testing starting\n");
1424
1425 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1426 eth_test->flags |= ETH_TEST_FL_FAILED;
1427
1428 /* Offline only tests, not run in online; pass by default */
1429 data[I40E_ETH_TEST_REG] = 0;
1430 data[I40E_ETH_TEST_EEPROM] = 0;
1431 data[I40E_ETH_TEST_INTR] = 0;
1432 data[I40E_ETH_TEST_LOOPBACK] = 0;
1433 }
1434
1435 netif_info(pf, drv, netdev, "testing finished\n");
1436 }
1437
i40e_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)1438 static void i40e_get_wol(struct net_device *netdev,
1439 struct ethtool_wolinfo *wol)
1440 {
1441 struct i40e_netdev_priv *np = netdev_priv(netdev);
1442 struct i40e_pf *pf = np->vsi->back;
1443 struct i40e_hw *hw = &pf->hw;
1444 u16 wol_nvm_bits;
1445
1446 /* NVM bit on means WoL disabled for the port */
1447 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1448 if ((1 << hw->port) & wol_nvm_bits) {
1449 wol->supported = 0;
1450 wol->wolopts = 0;
1451 } else {
1452 wol->supported = WAKE_MAGIC;
1453 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1454 }
1455 }
1456
i40e_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)1457 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1458 {
1459 struct i40e_netdev_priv *np = netdev_priv(netdev);
1460 struct i40e_pf *pf = np->vsi->back;
1461 struct i40e_hw *hw = &pf->hw;
1462 u16 wol_nvm_bits;
1463
1464 /* NVM bit on means WoL disabled for the port */
1465 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1466 if (((1 << hw->port) & wol_nvm_bits))
1467 return -EOPNOTSUPP;
1468
1469 /* only magic packet is supported */
1470 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1471 return -EOPNOTSUPP;
1472
1473 /* is this a new value? */
1474 if (pf->wol_en != !!wol->wolopts) {
1475 pf->wol_en = !!wol->wolopts;
1476 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1477 }
1478
1479 return 0;
1480 }
1481
i40e_set_phys_id(struct net_device * netdev,enum ethtool_phys_id_state state)1482 static int i40e_set_phys_id(struct net_device *netdev,
1483 enum ethtool_phys_id_state state)
1484 {
1485 struct i40e_netdev_priv *np = netdev_priv(netdev);
1486 struct i40e_pf *pf = np->vsi->back;
1487 struct i40e_hw *hw = &pf->hw;
1488 int blink_freq = 2;
1489
1490 switch (state) {
1491 case ETHTOOL_ID_ACTIVE:
1492 pf->led_status = i40e_led_get(hw);
1493 return blink_freq;
1494 case ETHTOOL_ID_ON:
1495 i40e_led_set(hw, 0xF, false);
1496 break;
1497 case ETHTOOL_ID_OFF:
1498 i40e_led_set(hw, 0x0, false);
1499 break;
1500 case ETHTOOL_ID_INACTIVE:
1501 i40e_led_set(hw, pf->led_status, false);
1502 break;
1503 }
1504
1505 return 0;
1506 }
1507
1508 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1509 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1510 * 125us (8000 interrupts per second) == ITR(62)
1511 */
1512
i40e_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec)1513 static int i40e_get_coalesce(struct net_device *netdev,
1514 struct ethtool_coalesce *ec)
1515 {
1516 struct i40e_netdev_priv *np = netdev_priv(netdev);
1517 struct i40e_vsi *vsi = np->vsi;
1518
1519 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1520 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1521
1522 if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1523 ec->use_adaptive_rx_coalesce = 1;
1524
1525 if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1526 ec->use_adaptive_tx_coalesce = 1;
1527
1528 ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1529 ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1530
1531 return 0;
1532 }
1533
i40e_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec)1534 static int i40e_set_coalesce(struct net_device *netdev,
1535 struct ethtool_coalesce *ec)
1536 {
1537 struct i40e_netdev_priv *np = netdev_priv(netdev);
1538 struct i40e_q_vector *q_vector;
1539 struct i40e_vsi *vsi = np->vsi;
1540 struct i40e_pf *pf = vsi->back;
1541 struct i40e_hw *hw = &pf->hw;
1542 u16 vector;
1543 int i;
1544
1545 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1546 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1547
1548 vector = vsi->base_vector;
1549 if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1550 (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1551 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1552 } else if (ec->rx_coalesce_usecs == 0) {
1553 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1554 i40e_irq_dynamic_disable(vsi, vector);
1555 if (ec->use_adaptive_rx_coalesce)
1556 netif_info(pf, drv, netdev,
1557 "Rx-secs=0, need to disable adaptive-Rx for a complete disable\n");
1558 } else {
1559 netif_info(pf, drv, netdev,
1560 "Invalid value, Rx-usecs range is 0, 8-8160\n");
1561 return -EINVAL;
1562 }
1563
1564 if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1565 (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1566 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1567 } else if (ec->tx_coalesce_usecs == 0) {
1568 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1569 i40e_irq_dynamic_disable(vsi, vector);
1570 if (ec->use_adaptive_tx_coalesce)
1571 netif_info(pf, drv, netdev,
1572 "Tx-secs=0, need to disable adaptive-Tx for a complete disable\n");
1573 } else {
1574 netif_info(pf, drv, netdev,
1575 "Invalid value, Tx-usecs range is 0, 8-8160\n");
1576 return -EINVAL;
1577 }
1578
1579 if (ec->use_adaptive_rx_coalesce)
1580 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1581 else
1582 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1583
1584 if (ec->use_adaptive_tx_coalesce)
1585 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1586 else
1587 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1588
1589 for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1590 q_vector = vsi->q_vectors[i];
1591 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1592 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1593 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1594 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1595 i40e_flush(hw);
1596 }
1597
1598 return 0;
1599 }
1600
1601 /**
1602 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1603 * @pf: pointer to the physical function struct
1604 * @cmd: ethtool rxnfc command
1605 *
1606 * Returns Success if the flow is supported, else Invalid Input.
1607 **/
i40e_get_rss_hash_opts(struct i40e_pf * pf,struct ethtool_rxnfc * cmd)1608 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1609 {
1610 cmd->data = 0;
1611
1612 /* Report default options for RSS on i40e */
1613 switch (cmd->flow_type) {
1614 case TCP_V4_FLOW:
1615 case UDP_V4_FLOW:
1616 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1617 /* fall through to add IP fields */
1618 case SCTP_V4_FLOW:
1619 case AH_ESP_V4_FLOW:
1620 case AH_V4_FLOW:
1621 case ESP_V4_FLOW:
1622 case IPV4_FLOW:
1623 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1624 break;
1625 case TCP_V6_FLOW:
1626 case UDP_V6_FLOW:
1627 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1628 /* fall through to add IP fields */
1629 case SCTP_V6_FLOW:
1630 case AH_ESP_V6_FLOW:
1631 case AH_V6_FLOW:
1632 case ESP_V6_FLOW:
1633 case IPV6_FLOW:
1634 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1635 break;
1636 default:
1637 return -EINVAL;
1638 }
1639
1640 return 0;
1641 }
1642
1643 /**
1644 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
1645 * @pf: Pointer to the physical function struct
1646 * @cmd: The command to get or set Rx flow classification rules
1647 * @rule_locs: Array of used rule locations
1648 *
1649 * This function populates both the total and actual rule count of
1650 * the ethtool flow classification command
1651 *
1652 * Returns 0 on success or -EMSGSIZE if entry not found
1653 **/
i40e_get_ethtool_fdir_all(struct i40e_pf * pf,struct ethtool_rxnfc * cmd,u32 * rule_locs)1654 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
1655 struct ethtool_rxnfc *cmd,
1656 u32 *rule_locs)
1657 {
1658 struct i40e_fdir_filter *rule;
1659 struct hlist_node *node2;
1660 int cnt = 0;
1661
1662 /* report total rule count */
1663 cmd->data = i40e_get_fd_cnt_all(pf);
1664
1665 hlist_for_each_entry_safe(rule, node2,
1666 &pf->fdir_filter_list, fdir_node) {
1667 if (cnt == cmd->rule_cnt)
1668 return -EMSGSIZE;
1669
1670 rule_locs[cnt] = rule->fd_id;
1671 cnt++;
1672 }
1673
1674 cmd->rule_cnt = cnt;
1675
1676 return 0;
1677 }
1678
1679 /**
1680 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
1681 * @pf: Pointer to the physical function struct
1682 * @cmd: The command to get or set Rx flow classification rules
1683 *
1684 * This function looks up a filter based on the Rx flow classification
1685 * command and fills the flow spec info for it if found
1686 *
1687 * Returns 0 on success or -EINVAL if filter not found
1688 **/
i40e_get_ethtool_fdir_entry(struct i40e_pf * pf,struct ethtool_rxnfc * cmd)1689 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
1690 struct ethtool_rxnfc *cmd)
1691 {
1692 struct ethtool_rx_flow_spec *fsp =
1693 (struct ethtool_rx_flow_spec *)&cmd->fs;
1694 struct i40e_fdir_filter *rule = NULL;
1695 struct hlist_node *node2;
1696
1697 hlist_for_each_entry_safe(rule, node2,
1698 &pf->fdir_filter_list, fdir_node) {
1699 if (fsp->location <= rule->fd_id)
1700 break;
1701 }
1702
1703 if (!rule || fsp->location != rule->fd_id)
1704 return -EINVAL;
1705
1706 fsp->flow_type = rule->flow_type;
1707 if (fsp->flow_type == IP_USER_FLOW) {
1708 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
1709 fsp->h_u.usr_ip4_spec.proto = 0;
1710 fsp->m_u.usr_ip4_spec.proto = 0;
1711 }
1712
1713 /* Reverse the src and dest notion, since the HW views them from
1714 * Tx perspective where as the user expects it from Rx filter view.
1715 */
1716 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
1717 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
1718 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
1719 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
1720
1721 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
1722 fsp->ring_cookie = RX_CLS_FLOW_DISC;
1723 else
1724 fsp->ring_cookie = rule->q_index;
1725
1726 return 0;
1727 }
1728
1729 /**
1730 * i40e_get_rxnfc - command to get RX flow classification rules
1731 * @netdev: network interface device structure
1732 * @cmd: ethtool rxnfc command
1733 *
1734 * Returns Success if the command is supported.
1735 **/
i40e_get_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd,u32 * rule_locs)1736 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
1737 u32 *rule_locs)
1738 {
1739 struct i40e_netdev_priv *np = netdev_priv(netdev);
1740 struct i40e_vsi *vsi = np->vsi;
1741 struct i40e_pf *pf = vsi->back;
1742 int ret = -EOPNOTSUPP;
1743
1744 switch (cmd->cmd) {
1745 case ETHTOOL_GRXRINGS:
1746 cmd->data = vsi->alloc_queue_pairs;
1747 ret = 0;
1748 break;
1749 case ETHTOOL_GRXFH:
1750 ret = i40e_get_rss_hash_opts(pf, cmd);
1751 break;
1752 case ETHTOOL_GRXCLSRLCNT:
1753 cmd->rule_cnt = pf->fdir_pf_active_filters;
1754 /* report total rule count */
1755 cmd->data = i40e_get_fd_cnt_all(pf);
1756 ret = 0;
1757 break;
1758 case ETHTOOL_GRXCLSRULE:
1759 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
1760 break;
1761 case ETHTOOL_GRXCLSRLALL:
1762 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
1763 break;
1764 default:
1765 break;
1766 }
1767
1768 return ret;
1769 }
1770
1771 /**
1772 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
1773 * @pf: pointer to the physical function struct
1774 * @cmd: ethtool rxnfc command
1775 *
1776 * Returns Success if the flow input set is supported.
1777 **/
i40e_set_rss_hash_opt(struct i40e_pf * pf,struct ethtool_rxnfc * nfc)1778 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
1779 {
1780 struct i40e_hw *hw = &pf->hw;
1781 u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
1782 ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
1783
1784 /* RSS does not support anything other than hashing
1785 * to queues on src and dst IPs and ports
1786 */
1787 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1788 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1789 return -EINVAL;
1790
1791 /* We need at least the IP SRC and DEST fields for hashing */
1792 if (!(nfc->data & RXH_IP_SRC) ||
1793 !(nfc->data & RXH_IP_DST))
1794 return -EINVAL;
1795
1796 switch (nfc->flow_type) {
1797 case TCP_V4_FLOW:
1798 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1799 case 0:
1800 hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
1801 break;
1802 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1803 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
1804 break;
1805 default:
1806 return -EINVAL;
1807 }
1808 break;
1809 case TCP_V6_FLOW:
1810 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1811 case 0:
1812 hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
1813 break;
1814 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1815 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
1816 break;
1817 default:
1818 return -EINVAL;
1819 }
1820 break;
1821 case UDP_V4_FLOW:
1822 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1823 case 0:
1824 hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
1825 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
1826 break;
1827 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1828 hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
1829 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
1830 break;
1831 default:
1832 return -EINVAL;
1833 }
1834 break;
1835 case UDP_V6_FLOW:
1836 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1837 case 0:
1838 hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
1839 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
1840 break;
1841 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1842 hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
1843 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
1844 break;
1845 default:
1846 return -EINVAL;
1847 }
1848 break;
1849 case AH_ESP_V4_FLOW:
1850 case AH_V4_FLOW:
1851 case ESP_V4_FLOW:
1852 case SCTP_V4_FLOW:
1853 if ((nfc->data & RXH_L4_B_0_1) ||
1854 (nfc->data & RXH_L4_B_2_3))
1855 return -EINVAL;
1856 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
1857 break;
1858 case AH_ESP_V6_FLOW:
1859 case AH_V6_FLOW:
1860 case ESP_V6_FLOW:
1861 case SCTP_V6_FLOW:
1862 if ((nfc->data & RXH_L4_B_0_1) ||
1863 (nfc->data & RXH_L4_B_2_3))
1864 return -EINVAL;
1865 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
1866 break;
1867 case IPV4_FLOW:
1868 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
1869 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4);
1870 break;
1871 case IPV6_FLOW:
1872 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
1873 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
1874 break;
1875 default:
1876 return -EINVAL;
1877 }
1878
1879 wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
1880 wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
1881 i40e_flush(hw);
1882
1883 return 0;
1884 }
1885
1886 /**
1887 * i40e_match_fdir_input_set - Match a new filter against an existing one
1888 * @rule: The filter already added
1889 * @input: The new filter to comapre against
1890 *
1891 * Returns true if the two input set match
1892 **/
i40e_match_fdir_input_set(struct i40e_fdir_filter * rule,struct i40e_fdir_filter * input)1893 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
1894 struct i40e_fdir_filter *input)
1895 {
1896 if ((rule->dst_ip[0] != input->dst_ip[0]) ||
1897 (rule->src_ip[0] != input->src_ip[0]) ||
1898 (rule->dst_port != input->dst_port) ||
1899 (rule->src_port != input->src_port))
1900 return false;
1901 return true;
1902 }
1903
1904 /**
1905 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
1906 * @vsi: Pointer to the targeted VSI
1907 * @input: The filter to update or NULL to indicate deletion
1908 * @sw_idx: Software index to the filter
1909 * @cmd: The command to get or set Rx flow classification rules
1910 *
1911 * This function updates (or deletes) a Flow Director entry from
1912 * the hlist of the corresponding PF
1913 *
1914 * Returns 0 on success
1915 **/
i40e_update_ethtool_fdir_entry(struct i40e_vsi * vsi,struct i40e_fdir_filter * input,u16 sw_idx,struct ethtool_rxnfc * cmd)1916 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
1917 struct i40e_fdir_filter *input,
1918 u16 sw_idx,
1919 struct ethtool_rxnfc *cmd)
1920 {
1921 struct i40e_fdir_filter *rule, *parent;
1922 struct i40e_pf *pf = vsi->back;
1923 struct hlist_node *node2;
1924 int err = -EINVAL;
1925
1926 parent = NULL;
1927 rule = NULL;
1928
1929 hlist_for_each_entry_safe(rule, node2,
1930 &pf->fdir_filter_list, fdir_node) {
1931 /* hash found, or no matching entry */
1932 if (rule->fd_id >= sw_idx)
1933 break;
1934 parent = rule;
1935 }
1936
1937 /* if there is an old rule occupying our place remove it */
1938 if (rule && (rule->fd_id == sw_idx)) {
1939 if (input && !i40e_match_fdir_input_set(rule, input))
1940 err = i40e_add_del_fdir(vsi, rule, false);
1941 else if (!input)
1942 err = i40e_add_del_fdir(vsi, rule, false);
1943 hlist_del(&rule->fdir_node);
1944 kfree(rule);
1945 pf->fdir_pf_active_filters--;
1946 }
1947
1948 /* If no input this was a delete, err should be 0 if a rule was
1949 * successfully found and removed from the list else -EINVAL
1950 */
1951 if (!input)
1952 return err;
1953
1954 /* initialize node and set software index */
1955 INIT_HLIST_NODE(&input->fdir_node);
1956
1957 /* add filter to the list */
1958 if (parent)
1959 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
1960 else
1961 hlist_add_head(&input->fdir_node,
1962 &pf->fdir_filter_list);
1963
1964 /* update counts */
1965 pf->fdir_pf_active_filters++;
1966
1967 return 0;
1968 }
1969
1970 /**
1971 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
1972 * @vsi: Pointer to the targeted VSI
1973 * @cmd: The command to get or set Rx flow classification rules
1974 *
1975 * The function removes a Flow Director filter entry from the
1976 * hlist of the corresponding PF
1977 *
1978 * Returns 0 on success
1979 */
i40e_del_fdir_entry(struct i40e_vsi * vsi,struct ethtool_rxnfc * cmd)1980 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
1981 struct ethtool_rxnfc *cmd)
1982 {
1983 struct ethtool_rx_flow_spec *fsp =
1984 (struct ethtool_rx_flow_spec *)&cmd->fs;
1985 struct i40e_pf *pf = vsi->back;
1986 int ret = 0;
1987
1988 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1989 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1990 return -EBUSY;
1991
1992 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
1993 return -EBUSY;
1994
1995 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
1996
1997 i40e_fdir_check_and_reenable(pf);
1998 return ret;
1999 }
2000
2001 /**
2002 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2003 * @vsi: pointer to the targeted VSI
2004 * @cmd: command to get or set RX flow classification rules
2005 *
2006 * Add Flow Director filters for a specific flow spec based on their
2007 * protocol. Returns 0 if the filters were successfully added.
2008 **/
i40e_add_fdir_ethtool(struct i40e_vsi * vsi,struct ethtool_rxnfc * cmd)2009 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2010 struct ethtool_rxnfc *cmd)
2011 {
2012 struct ethtool_rx_flow_spec *fsp;
2013 struct i40e_fdir_filter *input;
2014 struct i40e_pf *pf;
2015 int ret = -EINVAL;
2016
2017 if (!vsi)
2018 return -EINVAL;
2019
2020 pf = vsi->back;
2021
2022 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2023 return -EOPNOTSUPP;
2024
2025 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2026 return -ENOSPC;
2027
2028 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2029 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2030 return -EBUSY;
2031
2032 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2033 return -EBUSY;
2034
2035 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2036
2037 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2038 pf->hw.func_caps.fd_filters_guaranteed)) {
2039 return -EINVAL;
2040 }
2041
2042 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2043 (fsp->ring_cookie >= vsi->num_queue_pairs))
2044 return -EINVAL;
2045
2046 input = kzalloc(sizeof(*input), GFP_KERNEL);
2047
2048 if (!input)
2049 return -ENOMEM;
2050
2051 input->fd_id = fsp->location;
2052
2053 if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2054 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2055 else
2056 input->dest_ctl =
2057 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2058
2059 input->q_index = fsp->ring_cookie;
2060 input->flex_off = 0;
2061 input->pctype = 0;
2062 input->dest_vsi = vsi->id;
2063 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2064 input->cnt_index = pf->fd_sb_cnt_idx;
2065 input->flow_type = fsp->flow_type;
2066 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2067
2068 /* Reverse the src and dest notion, since the HW expects them to be from
2069 * Tx perspective where as the input from user is from Rx filter view.
2070 */
2071 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2072 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2073 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2074 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2075
2076 ret = i40e_add_del_fdir(vsi, input, true);
2077 if (ret)
2078 kfree(input);
2079 else
2080 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2081
2082 return ret;
2083 }
2084
2085 /**
2086 * i40e_set_rxnfc - command to set RX flow classification rules
2087 * @netdev: network interface device structure
2088 * @cmd: ethtool rxnfc command
2089 *
2090 * Returns Success if the command is supported.
2091 **/
i40e_set_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd)2092 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2093 {
2094 struct i40e_netdev_priv *np = netdev_priv(netdev);
2095 struct i40e_vsi *vsi = np->vsi;
2096 struct i40e_pf *pf = vsi->back;
2097 int ret = -EOPNOTSUPP;
2098
2099 switch (cmd->cmd) {
2100 case ETHTOOL_SRXFH:
2101 ret = i40e_set_rss_hash_opt(pf, cmd);
2102 break;
2103 case ETHTOOL_SRXCLSRLINS:
2104 ret = i40e_add_fdir_ethtool(vsi, cmd);
2105 break;
2106 case ETHTOOL_SRXCLSRLDEL:
2107 ret = i40e_del_fdir_entry(vsi, cmd);
2108 break;
2109 default:
2110 break;
2111 }
2112
2113 return ret;
2114 }
2115
2116 /**
2117 * i40e_max_channels - get Max number of combined channels supported
2118 * @vsi: vsi pointer
2119 **/
i40e_max_channels(struct i40e_vsi * vsi)2120 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2121 {
2122 /* TODO: This code assumes DCB and FD is disabled for now. */
2123 return vsi->alloc_queue_pairs;
2124 }
2125
2126 /**
2127 * i40e_get_channels - Get the current channels enabled and max supported etc.
2128 * @netdev: network interface device structure
2129 * @ch: ethtool channels structure
2130 *
2131 * We don't support separate tx and rx queues as channels. The other count
2132 * represents how many queues are being used for control. max_combined counts
2133 * how many queue pairs we can support. They may not be mapped 1 to 1 with
2134 * q_vectors since we support a lot more queue pairs than q_vectors.
2135 **/
i40e_get_channels(struct net_device * dev,struct ethtool_channels * ch)2136 static void i40e_get_channels(struct net_device *dev,
2137 struct ethtool_channels *ch)
2138 {
2139 struct i40e_netdev_priv *np = netdev_priv(dev);
2140 struct i40e_vsi *vsi = np->vsi;
2141 struct i40e_pf *pf = vsi->back;
2142
2143 /* report maximum channels */
2144 ch->max_combined = i40e_max_channels(vsi);
2145
2146 /* report info for other vector */
2147 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2148 ch->max_other = ch->other_count;
2149
2150 /* Note: This code assumes DCB is disabled for now. */
2151 ch->combined_count = vsi->num_queue_pairs;
2152 }
2153
2154 /**
2155 * i40e_set_channels - Set the new channels count.
2156 * @netdev: network interface device structure
2157 * @ch: ethtool channels structure
2158 *
2159 * The new channels count may not be the same as requested by the user
2160 * since it gets rounded down to a power of 2 value.
2161 **/
i40e_set_channels(struct net_device * dev,struct ethtool_channels * ch)2162 static int i40e_set_channels(struct net_device *dev,
2163 struct ethtool_channels *ch)
2164 {
2165 struct i40e_netdev_priv *np = netdev_priv(dev);
2166 unsigned int count = ch->combined_count;
2167 struct i40e_vsi *vsi = np->vsi;
2168 struct i40e_pf *pf = vsi->back;
2169 int new_count;
2170
2171 /* We do not support setting channels for any other VSI at present */
2172 if (vsi->type != I40E_VSI_MAIN)
2173 return -EINVAL;
2174
2175 /* verify they are not requesting separate vectors */
2176 if (!count || ch->rx_count || ch->tx_count)
2177 return -EINVAL;
2178
2179 /* verify other_count has not changed */
2180 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2181 return -EINVAL;
2182
2183 /* verify the number of channels does not exceed hardware limits */
2184 if (count > i40e_max_channels(vsi))
2185 return -EINVAL;
2186
2187 /* update feature limits from largest to smallest supported values */
2188 /* TODO: Flow director limit, DCB etc */
2189
2190 /* cap RSS limit */
2191 if (count > pf->rss_size_max)
2192 count = pf->rss_size_max;
2193
2194 /* use rss_reconfig to rebuild with new queue count and update traffic
2195 * class queue mapping
2196 */
2197 new_count = i40e_reconfig_rss_queues(pf, count);
2198 if (new_count > 0)
2199 return 0;
2200 else
2201 return -EINVAL;
2202 }
2203
2204 static const struct ethtool_ops i40e_ethtool_ops = {
2205 .get_settings = i40e_get_settings,
2206 .set_settings = i40e_set_settings,
2207 .get_drvinfo = i40e_get_drvinfo,
2208 .get_regs_len = i40e_get_regs_len,
2209 .get_regs = i40e_get_regs,
2210 .nway_reset = i40e_nway_reset,
2211 .get_link = ethtool_op_get_link,
2212 .get_wol = i40e_get_wol,
2213 .set_wol = i40e_set_wol,
2214 .set_eeprom = i40e_set_eeprom,
2215 .get_eeprom_len = i40e_get_eeprom_len,
2216 .get_eeprom = i40e_get_eeprom,
2217 .get_ringparam = i40e_get_ringparam,
2218 .set_ringparam = i40e_set_ringparam,
2219 .get_pauseparam = i40e_get_pauseparam,
2220 .set_pauseparam = i40e_set_pauseparam,
2221 .get_msglevel = i40e_get_msglevel,
2222 .set_msglevel = i40e_set_msglevel,
2223 .get_rxnfc = i40e_get_rxnfc,
2224 .set_rxnfc = i40e_set_rxnfc,
2225 .self_test = i40e_diag_test,
2226 .get_strings = i40e_get_strings,
2227 .set_phys_id = i40e_set_phys_id,
2228 .get_sset_count = i40e_get_sset_count,
2229 .get_ethtool_stats = i40e_get_ethtool_stats,
2230 .get_coalesce = i40e_get_coalesce,
2231 .set_coalesce = i40e_set_coalesce,
2232 .get_channels = i40e_get_channels,
2233 .set_channels = i40e_set_channels,
2234 .get_ts_info = i40e_get_ts_info,
2235 };
2236
i40e_set_ethtool_ops(struct net_device * netdev)2237 void i40e_set_ethtool_ops(struct net_device *netdev)
2238 {
2239 netdev->ethtool_ops = &i40e_ethtool_ops;
2240 }
2241