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[deliverable/linux.git] / drivers / net / ethernet / intel / i40e / i40e_ethtool.c
1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 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
44 #define I40E_NETDEV_STAT(_net_stat) \
45 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
46 #define I40E_PF_STAT(_name, _stat) \
47 I40E_STAT(struct i40e_pf, _name, _stat)
48 #define I40E_VSI_STAT(_name, _stat) \
49 I40E_STAT(struct i40e_vsi, _name, _stat)
50 #define I40E_VEB_STAT(_name, _stat) \
51 I40E_STAT(struct i40e_veb, _name, _stat)
52
53 static const struct i40e_stats i40e_gstrings_net_stats[] = {
54 I40E_NETDEV_STAT(rx_packets),
55 I40E_NETDEV_STAT(tx_packets),
56 I40E_NETDEV_STAT(rx_bytes),
57 I40E_NETDEV_STAT(tx_bytes),
58 I40E_NETDEV_STAT(rx_errors),
59 I40E_NETDEV_STAT(tx_errors),
60 I40E_NETDEV_STAT(rx_dropped),
61 I40E_NETDEV_STAT(tx_dropped),
62 I40E_NETDEV_STAT(collisions),
63 I40E_NETDEV_STAT(rx_length_errors),
64 I40E_NETDEV_STAT(rx_crc_errors),
65 };
66
67 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
68 I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
69 I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
70 I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
71 I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
72 I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
73 I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
74 I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
75 I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
76 I40E_VEB_STAT("rx_discards", stats.rx_discards),
77 I40E_VEB_STAT("tx_discards", stats.tx_discards),
78 I40E_VEB_STAT("tx_errors", stats.tx_errors),
79 I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
80 };
81
82 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
83 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
84 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
85 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
86 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
87 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
88 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
89 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
90 };
91
92 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
93 struct ethtool_rxnfc *cmd);
94
95 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
96 * but they are separate. This device supports Virtualization, and
97 * as such might have several netdevs supporting VMDq and FCoE going
98 * through a single port. The NETDEV_STATs are for individual netdevs
99 * seen at the top of the stack, and the PF_STATs are for the physical
100 * function at the bottom of the stack hosting those netdevs.
101 *
102 * The PF_STATs are appended to the netdev stats only when ethtool -S
103 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
104 */
105 static struct i40e_stats i40e_gstrings_stats[] = {
106 I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
107 I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
108 I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
109 I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
110 I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
111 I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
112 I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
113 I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
114 I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
115 I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
116 I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
117 I40E_PF_STAT("rx_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_atr_tunnel_match", stats.fd_atr_tunnel_match),
151 I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
152 I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
153 I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
154
155 /* LPI stats */
156 I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
157 I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
158 I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
159 I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
160 };
161
162 #ifdef I40E_FCOE
163 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
164 I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
165 I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
166 I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
167 I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
168 I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
169 I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
170 I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
171 I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
172 };
173
174 #endif /* I40E_FCOE */
175 #define I40E_QUEUE_STATS_LEN(n) \
176 (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
177 * 2 /* Tx and Rx together */ \
178 * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
179 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
180 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
181 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
182 #ifdef I40E_FCOE
183 #define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats)
184 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
185 I40E_FCOE_STATS_LEN + \
186 I40E_MISC_STATS_LEN + \
187 I40E_QUEUE_STATS_LEN((n)))
188 #else
189 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
190 I40E_MISC_STATS_LEN + \
191 I40E_QUEUE_STATS_LEN((n)))
192 #endif /* I40E_FCOE */
193 #define I40E_PFC_STATS_LEN ( \
194 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
195 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
196 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
197 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
198 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
199 / sizeof(u64))
200 #define I40E_VEB_TC_STATS_LEN ( \
201 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
202 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
203 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
204 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
205 / sizeof(u64))
206 #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats)
207 #define I40E_VEB_STATS_TOTAL (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
208 #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \
209 I40E_PFC_STATS_LEN + \
210 I40E_VSI_STATS_LEN((n)))
211
212 enum i40e_ethtool_test_id {
213 I40E_ETH_TEST_REG = 0,
214 I40E_ETH_TEST_EEPROM,
215 I40E_ETH_TEST_INTR,
216 I40E_ETH_TEST_LOOPBACK,
217 I40E_ETH_TEST_LINK,
218 };
219
220 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
221 "Register test (offline)",
222 "Eeprom test (offline)",
223 "Interrupt test (offline)",
224 "Loopback test (offline)",
225 "Link test (on/offline)"
226 };
227
228 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
229
230 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
231 "NPAR",
232 };
233
234 #define I40E_PRIV_FLAGS_STR_LEN \
235 (sizeof(i40e_priv_flags_strings) / ETH_GSTRING_LEN)
236
237 /**
238 * i40e_partition_setting_complaint - generic complaint for MFP restriction
239 * @pf: the PF struct
240 **/
241 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
242 {
243 dev_info(&pf->pdev->dev,
244 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
245 }
246
247 /**
248 * i40e_get_settings_link_up - Get the Link settings for when link is up
249 * @hw: hw structure
250 * @ecmd: ethtool command to fill in
251 * @netdev: network interface device structure
252 *
253 **/
254 static void i40e_get_settings_link_up(struct i40e_hw *hw,
255 struct ethtool_cmd *ecmd,
256 struct net_device *netdev)
257 {
258 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
259 u32 link_speed = hw_link_info->link_speed;
260
261 /* Initialize supported and advertised settings based on phy settings */
262 switch (hw_link_info->phy_type) {
263 case I40E_PHY_TYPE_40GBASE_CR4:
264 case I40E_PHY_TYPE_40GBASE_CR4_CU:
265 ecmd->supported = SUPPORTED_Autoneg |
266 SUPPORTED_40000baseCR4_Full;
267 ecmd->advertising = ADVERTISED_Autoneg |
268 ADVERTISED_40000baseCR4_Full;
269 break;
270 case I40E_PHY_TYPE_XLAUI:
271 case I40E_PHY_TYPE_XLPPI:
272 case I40E_PHY_TYPE_40GBASE_AOC:
273 ecmd->supported = SUPPORTED_40000baseCR4_Full;
274 break;
275 case I40E_PHY_TYPE_40GBASE_KR4:
276 ecmd->supported = SUPPORTED_Autoneg |
277 SUPPORTED_40000baseKR4_Full;
278 ecmd->advertising = ADVERTISED_Autoneg |
279 ADVERTISED_40000baseKR4_Full;
280 break;
281 case I40E_PHY_TYPE_40GBASE_SR4:
282 ecmd->supported = SUPPORTED_40000baseSR4_Full;
283 break;
284 case I40E_PHY_TYPE_40GBASE_LR4:
285 ecmd->supported = SUPPORTED_40000baseLR4_Full;
286 break;
287 case I40E_PHY_TYPE_20GBASE_KR2:
288 ecmd->supported = SUPPORTED_Autoneg |
289 SUPPORTED_20000baseKR2_Full;
290 ecmd->advertising = ADVERTISED_Autoneg |
291 ADVERTISED_20000baseKR2_Full;
292 break;
293 case I40E_PHY_TYPE_10GBASE_KX4:
294 ecmd->supported = SUPPORTED_Autoneg |
295 SUPPORTED_10000baseKX4_Full;
296 ecmd->advertising = ADVERTISED_Autoneg |
297 ADVERTISED_10000baseKX4_Full;
298 break;
299 case I40E_PHY_TYPE_10GBASE_KR:
300 ecmd->supported = SUPPORTED_Autoneg |
301 SUPPORTED_10000baseKR_Full;
302 ecmd->advertising = ADVERTISED_Autoneg |
303 ADVERTISED_10000baseKR_Full;
304 break;
305 case I40E_PHY_TYPE_10GBASE_SR:
306 case I40E_PHY_TYPE_10GBASE_LR:
307 case I40E_PHY_TYPE_1000BASE_SX:
308 case I40E_PHY_TYPE_1000BASE_LX:
309 ecmd->supported = SUPPORTED_10000baseT_Full |
310 SUPPORTED_1000baseT_Full;
311 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
312 ecmd->advertising |= ADVERTISED_10000baseT_Full;
313 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
314 ecmd->advertising |= ADVERTISED_1000baseT_Full;
315 break;
316 case I40E_PHY_TYPE_1000BASE_KX:
317 ecmd->supported = SUPPORTED_Autoneg |
318 SUPPORTED_1000baseKX_Full;
319 ecmd->advertising = ADVERTISED_Autoneg |
320 ADVERTISED_1000baseKX_Full;
321 break;
322 case I40E_PHY_TYPE_10GBASE_T:
323 case I40E_PHY_TYPE_1000BASE_T:
324 case I40E_PHY_TYPE_100BASE_TX:
325 ecmd->supported = SUPPORTED_Autoneg |
326 SUPPORTED_10000baseT_Full |
327 SUPPORTED_1000baseT_Full |
328 SUPPORTED_100baseT_Full;
329 ecmd->advertising = ADVERTISED_Autoneg;
330 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
331 ecmd->advertising |= ADVERTISED_10000baseT_Full;
332 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
333 ecmd->advertising |= ADVERTISED_1000baseT_Full;
334 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
335 ecmd->advertising |= ADVERTISED_100baseT_Full;
336 break;
337 case I40E_PHY_TYPE_10GBASE_CR1_CU:
338 case I40E_PHY_TYPE_10GBASE_CR1:
339 ecmd->supported = SUPPORTED_Autoneg |
340 SUPPORTED_10000baseT_Full;
341 ecmd->advertising = ADVERTISED_Autoneg |
342 ADVERTISED_10000baseT_Full;
343 break;
344 case I40E_PHY_TYPE_XAUI:
345 case I40E_PHY_TYPE_XFI:
346 case I40E_PHY_TYPE_SFI:
347 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
348 case I40E_PHY_TYPE_10GBASE_AOC:
349 ecmd->supported = SUPPORTED_10000baseT_Full;
350 break;
351 case I40E_PHY_TYPE_SGMII:
352 ecmd->supported = SUPPORTED_Autoneg |
353 SUPPORTED_1000baseT_Full |
354 SUPPORTED_100baseT_Full;
355 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
356 ecmd->advertising |= ADVERTISED_1000baseT_Full;
357 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
358 ecmd->advertising |= ADVERTISED_100baseT_Full;
359 break;
360 default:
361 /* if we got here and link is up something bad is afoot */
362 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
363 hw_link_info->phy_type);
364 }
365
366 /* Set speed and duplex */
367 switch (link_speed) {
368 case I40E_LINK_SPEED_40GB:
369 ethtool_cmd_speed_set(ecmd, SPEED_40000);
370 break;
371 case I40E_LINK_SPEED_20GB:
372 ethtool_cmd_speed_set(ecmd, SPEED_20000);
373 break;
374 case I40E_LINK_SPEED_10GB:
375 ethtool_cmd_speed_set(ecmd, SPEED_10000);
376 break;
377 case I40E_LINK_SPEED_1GB:
378 ethtool_cmd_speed_set(ecmd, SPEED_1000);
379 break;
380 case I40E_LINK_SPEED_100MB:
381 ethtool_cmd_speed_set(ecmd, SPEED_100);
382 break;
383 default:
384 break;
385 }
386 ecmd->duplex = DUPLEX_FULL;
387 }
388
389 /**
390 * i40e_get_settings_link_down - Get the Link settings for when link is down
391 * @hw: hw structure
392 * @ecmd: ethtool command to fill in
393 *
394 * Reports link settings that can be determined when link is down
395 **/
396 static void i40e_get_settings_link_down(struct i40e_hw *hw,
397 struct ethtool_cmd *ecmd)
398 {
399 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
400
401 /* link is down and the driver needs to fall back on
402 * device ID to determine what kinds of info to display,
403 * it's mostly a guess that may change when link is up
404 */
405 switch (hw->device_id) {
406 case I40E_DEV_ID_QSFP_A:
407 case I40E_DEV_ID_QSFP_B:
408 case I40E_DEV_ID_QSFP_C:
409 /* pluggable QSFP */
410 ecmd->supported = SUPPORTED_40000baseSR4_Full |
411 SUPPORTED_40000baseCR4_Full |
412 SUPPORTED_40000baseLR4_Full;
413 ecmd->advertising = ADVERTISED_40000baseSR4_Full |
414 ADVERTISED_40000baseCR4_Full |
415 ADVERTISED_40000baseLR4_Full;
416 break;
417 case I40E_DEV_ID_KX_B:
418 /* backplane 40G */
419 ecmd->supported = SUPPORTED_40000baseKR4_Full;
420 ecmd->advertising = ADVERTISED_40000baseKR4_Full;
421 break;
422 case I40E_DEV_ID_KX_C:
423 /* backplane 10G */
424 ecmd->supported = SUPPORTED_10000baseKR_Full;
425 ecmd->advertising = ADVERTISED_10000baseKR_Full;
426 break;
427 case I40E_DEV_ID_10G_BASE_T:
428 ecmd->supported = SUPPORTED_10000baseT_Full |
429 SUPPORTED_1000baseT_Full |
430 SUPPORTED_100baseT_Full;
431 /* Figure out what has been requested */
432 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
433 ecmd->advertising |= ADVERTISED_10000baseT_Full;
434 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
435 ecmd->advertising |= ADVERTISED_1000baseT_Full;
436 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
437 ecmd->advertising |= ADVERTISED_100baseT_Full;
438 break;
439 case I40E_DEV_ID_20G_KR2:
440 /* backplane 20G */
441 ecmd->supported = SUPPORTED_20000baseKR2_Full;
442 ecmd->advertising = ADVERTISED_20000baseKR2_Full;
443 break;
444 default:
445 /* all the rest are 10G/1G */
446 ecmd->supported = SUPPORTED_10000baseT_Full |
447 SUPPORTED_1000baseT_Full;
448 /* Figure out what has been requested */
449 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
450 ecmd->advertising |= ADVERTISED_10000baseT_Full;
451 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
452 ecmd->advertising |= ADVERTISED_1000baseT_Full;
453 break;
454 }
455
456 /* With no link speed and duplex are unknown */
457 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
458 ecmd->duplex = DUPLEX_UNKNOWN;
459 }
460
461 /**
462 * i40e_get_settings - Get Link Speed and Duplex settings
463 * @netdev: network interface device structure
464 * @ecmd: ethtool command
465 *
466 * Reports speed/duplex settings based on media_type
467 **/
468 static int i40e_get_settings(struct net_device *netdev,
469 struct ethtool_cmd *ecmd)
470 {
471 struct i40e_netdev_priv *np = netdev_priv(netdev);
472 struct i40e_pf *pf = np->vsi->back;
473 struct i40e_hw *hw = &pf->hw;
474 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
475 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
476
477 if (link_up)
478 i40e_get_settings_link_up(hw, ecmd, netdev);
479 else
480 i40e_get_settings_link_down(hw, ecmd);
481
482 /* Now set the settings that don't rely on link being up/down */
483
484 /* Set autoneg settings */
485 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
486 AUTONEG_ENABLE : AUTONEG_DISABLE);
487
488 switch (hw->phy.media_type) {
489 case I40E_MEDIA_TYPE_BACKPLANE:
490 ecmd->supported |= SUPPORTED_Autoneg |
491 SUPPORTED_Backplane;
492 ecmd->advertising |= ADVERTISED_Autoneg |
493 ADVERTISED_Backplane;
494 ecmd->port = PORT_NONE;
495 break;
496 case I40E_MEDIA_TYPE_BASET:
497 ecmd->supported |= SUPPORTED_TP;
498 ecmd->advertising |= ADVERTISED_TP;
499 ecmd->port = PORT_TP;
500 break;
501 case I40E_MEDIA_TYPE_DA:
502 case I40E_MEDIA_TYPE_CX4:
503 ecmd->supported |= SUPPORTED_FIBRE;
504 ecmd->advertising |= ADVERTISED_FIBRE;
505 ecmd->port = PORT_DA;
506 break;
507 case I40E_MEDIA_TYPE_FIBER:
508 ecmd->supported |= SUPPORTED_FIBRE;
509 ecmd->port = PORT_FIBRE;
510 break;
511 case I40E_MEDIA_TYPE_UNKNOWN:
512 default:
513 ecmd->port = PORT_OTHER;
514 break;
515 }
516
517 /* Set transceiver */
518 ecmd->transceiver = XCVR_EXTERNAL;
519
520 /* Set flow control settings */
521 ecmd->supported |= SUPPORTED_Pause;
522
523 switch (hw->fc.requested_mode) {
524 case I40E_FC_FULL:
525 ecmd->advertising |= ADVERTISED_Pause;
526 break;
527 case I40E_FC_TX_PAUSE:
528 ecmd->advertising |= ADVERTISED_Asym_Pause;
529 break;
530 case I40E_FC_RX_PAUSE:
531 ecmd->advertising |= (ADVERTISED_Pause |
532 ADVERTISED_Asym_Pause);
533 break;
534 default:
535 ecmd->advertising &= ~(ADVERTISED_Pause |
536 ADVERTISED_Asym_Pause);
537 break;
538 }
539
540 return 0;
541 }
542
543 /**
544 * i40e_set_settings - Set Speed and Duplex
545 * @netdev: network interface device structure
546 * @ecmd: ethtool command
547 *
548 * Set speed/duplex per media_types advertised/forced
549 **/
550 static int i40e_set_settings(struct net_device *netdev,
551 struct ethtool_cmd *ecmd)
552 {
553 struct i40e_netdev_priv *np = netdev_priv(netdev);
554 struct i40e_aq_get_phy_abilities_resp abilities;
555 struct i40e_aq_set_phy_config config;
556 struct i40e_pf *pf = np->vsi->back;
557 struct i40e_vsi *vsi = np->vsi;
558 struct i40e_hw *hw = &pf->hw;
559 struct ethtool_cmd safe_ecmd;
560 i40e_status status = 0;
561 bool change = false;
562 int err = 0;
563 u8 autoneg;
564 u32 advertise;
565
566 /* Changing port settings is not supported if this isn't the
567 * port's controlling PF
568 */
569 if (hw->partition_id != 1) {
570 i40e_partition_setting_complaint(pf);
571 return -EOPNOTSUPP;
572 }
573
574 if (vsi != pf->vsi[pf->lan_vsi])
575 return -EOPNOTSUPP;
576
577 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
578 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
579 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
580 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
581 return -EOPNOTSUPP;
582
583 /* get our own copy of the bits to check against */
584 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
585 i40e_get_settings(netdev, &safe_ecmd);
586
587 /* save autoneg and speed out of ecmd */
588 autoneg = ecmd->autoneg;
589 advertise = ecmd->advertising;
590
591 /* set autoneg and speed back to what they currently are */
592 ecmd->autoneg = safe_ecmd.autoneg;
593 ecmd->advertising = safe_ecmd.advertising;
594
595 ecmd->cmd = safe_ecmd.cmd;
596 /* If ecmd and safe_ecmd are not the same now, then they are
597 * trying to set something that we do not support
598 */
599 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
600 return -EOPNOTSUPP;
601
602 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
603 usleep_range(1000, 2000);
604
605 /* Get the current phy config */
606 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
607 NULL);
608 if (status)
609 return -EAGAIN;
610
611 /* Copy abilities to config in case autoneg is not
612 * set below
613 */
614 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
615 config.abilities = abilities.abilities;
616
617 /* Check autoneg */
618 if (autoneg == AUTONEG_ENABLE) {
619 /* If autoneg is not supported, return error */
620 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
621 netdev_info(netdev, "Autoneg not supported on this phy\n");
622 return -EINVAL;
623 }
624 /* If autoneg was not already enabled */
625 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
626 config.abilities = abilities.abilities |
627 I40E_AQ_PHY_ENABLE_AN;
628 change = true;
629 }
630 } else {
631 /* If autoneg is supported 10GBASE_T is the only phy that
632 * can disable it, so otherwise return error
633 */
634 if (safe_ecmd.supported & SUPPORTED_Autoneg &&
635 hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
636 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
637 return -EINVAL;
638 }
639 /* If autoneg is currently enabled */
640 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
641 config.abilities = abilities.abilities &
642 ~I40E_AQ_PHY_ENABLE_AN;
643 change = true;
644 }
645 }
646
647 if (advertise & ~safe_ecmd.supported)
648 return -EINVAL;
649
650 if (advertise & ADVERTISED_100baseT_Full)
651 config.link_speed |= I40E_LINK_SPEED_100MB;
652 if (advertise & ADVERTISED_1000baseT_Full ||
653 advertise & ADVERTISED_1000baseKX_Full)
654 config.link_speed |= I40E_LINK_SPEED_1GB;
655 if (advertise & ADVERTISED_10000baseT_Full ||
656 advertise & ADVERTISED_10000baseKX4_Full ||
657 advertise & ADVERTISED_10000baseKR_Full)
658 config.link_speed |= I40E_LINK_SPEED_10GB;
659 if (advertise & ADVERTISED_20000baseKR2_Full)
660 config.link_speed |= I40E_LINK_SPEED_20GB;
661 if (advertise & ADVERTISED_40000baseKR4_Full ||
662 advertise & ADVERTISED_40000baseCR4_Full ||
663 advertise & ADVERTISED_40000baseSR4_Full ||
664 advertise & ADVERTISED_40000baseLR4_Full)
665 config.link_speed |= I40E_LINK_SPEED_40GB;
666
667 if (change || (abilities.link_speed != config.link_speed)) {
668 /* copy over the rest of the abilities */
669 config.phy_type = abilities.phy_type;
670 config.eee_capability = abilities.eee_capability;
671 config.eeer = abilities.eeer_val;
672 config.low_power_ctrl = abilities.d3_lpan;
673
674 /* save the requested speeds */
675 hw->phy.link_info.requested_speeds = config.link_speed;
676 /* set link and auto negotiation so changes take effect */
677 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
678 /* If link is up put link down */
679 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
680 /* Tell the OS link is going down, the link will go
681 * back up when fw says it is ready asynchronously
682 */
683 netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n");
684 netif_carrier_off(netdev);
685 netif_tx_stop_all_queues(netdev);
686 }
687
688 /* make the aq call */
689 status = i40e_aq_set_phy_config(hw, &config, NULL);
690 if (status) {
691 netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
692 i40e_stat_str(hw, status),
693 i40e_aq_str(hw, hw->aq.asq_last_status));
694 return -EAGAIN;
695 }
696
697 status = i40e_aq_get_link_info(hw, true, NULL, NULL);
698 if (status)
699 netdev_info(netdev, "Updating link info failed with err %s aq_err %s\n",
700 i40e_stat_str(hw, status),
701 i40e_aq_str(hw, hw->aq.asq_last_status));
702
703 } else {
704 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
705 }
706
707 return err;
708 }
709
710 static int i40e_nway_reset(struct net_device *netdev)
711 {
712 /* restart autonegotiation */
713 struct i40e_netdev_priv *np = netdev_priv(netdev);
714 struct i40e_pf *pf = np->vsi->back;
715 struct i40e_hw *hw = &pf->hw;
716 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
717 i40e_status ret = 0;
718
719 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
720 if (ret) {
721 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
722 i40e_stat_str(hw, ret),
723 i40e_aq_str(hw, hw->aq.asq_last_status));
724 return -EIO;
725 }
726
727 return 0;
728 }
729
730 /**
731 * i40e_get_pauseparam - Get Flow Control status
732 * Return tx/rx-pause status
733 **/
734 static void i40e_get_pauseparam(struct net_device *netdev,
735 struct ethtool_pauseparam *pause)
736 {
737 struct i40e_netdev_priv *np = netdev_priv(netdev);
738 struct i40e_pf *pf = np->vsi->back;
739 struct i40e_hw *hw = &pf->hw;
740 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
741 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
742
743 pause->autoneg =
744 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
745 AUTONEG_ENABLE : AUTONEG_DISABLE);
746
747 /* PFC enabled so report LFC as off */
748 if (dcbx_cfg->pfc.pfcenable) {
749 pause->rx_pause = 0;
750 pause->tx_pause = 0;
751 return;
752 }
753
754 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
755 pause->rx_pause = 1;
756 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
757 pause->tx_pause = 1;
758 } else if (hw->fc.current_mode == I40E_FC_FULL) {
759 pause->rx_pause = 1;
760 pause->tx_pause = 1;
761 }
762 }
763
764 /**
765 * i40e_set_pauseparam - Set Flow Control parameter
766 * @netdev: network interface device structure
767 * @pause: return tx/rx flow control status
768 **/
769 static int i40e_set_pauseparam(struct net_device *netdev,
770 struct ethtool_pauseparam *pause)
771 {
772 struct i40e_netdev_priv *np = netdev_priv(netdev);
773 struct i40e_pf *pf = np->vsi->back;
774 struct i40e_vsi *vsi = np->vsi;
775 struct i40e_hw *hw = &pf->hw;
776 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
777 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
778 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
779 i40e_status status;
780 u8 aq_failures;
781 int err = 0;
782
783 /* Changing the port's flow control is not supported if this isn't the
784 * port's controlling PF
785 */
786 if (hw->partition_id != 1) {
787 i40e_partition_setting_complaint(pf);
788 return -EOPNOTSUPP;
789 }
790
791 if (vsi != pf->vsi[pf->lan_vsi])
792 return -EOPNOTSUPP;
793
794 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
795 AUTONEG_ENABLE : AUTONEG_DISABLE)) {
796 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
797 return -EOPNOTSUPP;
798 }
799
800 /* If we have link and don't have autoneg */
801 if (!test_bit(__I40E_DOWN, &pf->state) &&
802 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
803 /* Send message that it might not necessarily work*/
804 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
805 }
806
807 if (dcbx_cfg->pfc.pfcenable) {
808 netdev_info(netdev,
809 "Priority flow control enabled. Cannot set link flow control.\n");
810 return -EOPNOTSUPP;
811 }
812
813 if (pause->rx_pause && pause->tx_pause)
814 hw->fc.requested_mode = I40E_FC_FULL;
815 else if (pause->rx_pause && !pause->tx_pause)
816 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
817 else if (!pause->rx_pause && pause->tx_pause)
818 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
819 else if (!pause->rx_pause && !pause->tx_pause)
820 hw->fc.requested_mode = I40E_FC_NONE;
821 else
822 return -EINVAL;
823
824 /* Tell the OS link is going down, the link will go back up when fw
825 * says it is ready asynchronously
826 */
827 netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n");
828 netif_carrier_off(netdev);
829 netif_tx_stop_all_queues(netdev);
830
831 /* Set the fc mode and only restart an if link is up*/
832 status = i40e_set_fc(hw, &aq_failures, link_up);
833
834 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
835 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
836 i40e_stat_str(hw, status),
837 i40e_aq_str(hw, hw->aq.asq_last_status));
838 err = -EAGAIN;
839 }
840 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
841 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
842 i40e_stat_str(hw, status),
843 i40e_aq_str(hw, hw->aq.asq_last_status));
844 err = -EAGAIN;
845 }
846 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
847 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
848 i40e_stat_str(hw, status),
849 i40e_aq_str(hw, hw->aq.asq_last_status));
850 err = -EAGAIN;
851 }
852
853 if (!test_bit(__I40E_DOWN, &pf->state)) {
854 /* Give it a little more time to try to come back */
855 msleep(75);
856 if (!test_bit(__I40E_DOWN, &pf->state))
857 return i40e_nway_reset(netdev);
858 }
859
860 return err;
861 }
862
863 static u32 i40e_get_msglevel(struct net_device *netdev)
864 {
865 struct i40e_netdev_priv *np = netdev_priv(netdev);
866 struct i40e_pf *pf = np->vsi->back;
867
868 return pf->msg_enable;
869 }
870
871 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
872 {
873 struct i40e_netdev_priv *np = netdev_priv(netdev);
874 struct i40e_pf *pf = np->vsi->back;
875
876 if (I40E_DEBUG_USER & data)
877 pf->hw.debug_mask = data;
878 pf->msg_enable = data;
879 }
880
881 static int i40e_get_regs_len(struct net_device *netdev)
882 {
883 int reg_count = 0;
884 int i;
885
886 for (i = 0; i40e_reg_list[i].offset != 0; i++)
887 reg_count += i40e_reg_list[i].elements;
888
889 return reg_count * sizeof(u32);
890 }
891
892 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
893 void *p)
894 {
895 struct i40e_netdev_priv *np = netdev_priv(netdev);
896 struct i40e_pf *pf = np->vsi->back;
897 struct i40e_hw *hw = &pf->hw;
898 u32 *reg_buf = p;
899 int i, j, ri;
900 u32 reg;
901
902 /* Tell ethtool which driver-version-specific regs output we have.
903 *
904 * At some point, if we have ethtool doing special formatting of
905 * this data, it will rely on this version number to know how to
906 * interpret things. Hence, this needs to be updated if/when the
907 * diags register table is changed.
908 */
909 regs->version = 1;
910
911 /* loop through the diags reg table for what to print */
912 ri = 0;
913 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
914 for (j = 0; j < i40e_reg_list[i].elements; j++) {
915 reg = i40e_reg_list[i].offset
916 + (j * i40e_reg_list[i].stride);
917 reg_buf[ri++] = rd32(hw, reg);
918 }
919 }
920
921 }
922
923 static int i40e_get_eeprom(struct net_device *netdev,
924 struct ethtool_eeprom *eeprom, u8 *bytes)
925 {
926 struct i40e_netdev_priv *np = netdev_priv(netdev);
927 struct i40e_hw *hw = &np->vsi->back->hw;
928 struct i40e_pf *pf = np->vsi->back;
929 int ret_val = 0, len, offset;
930 u8 *eeprom_buff;
931 u16 i, sectors;
932 bool last;
933 u32 magic;
934
935 #define I40E_NVM_SECTOR_SIZE 4096
936 if (eeprom->len == 0)
937 return -EINVAL;
938
939 /* check for NVMUpdate access method */
940 magic = hw->vendor_id | (hw->device_id << 16);
941 if (eeprom->magic && eeprom->magic != magic) {
942 struct i40e_nvm_access *cmd;
943 int errno;
944
945 /* make sure it is the right magic for NVMUpdate */
946 if ((eeprom->magic >> 16) != hw->device_id)
947 return -EINVAL;
948
949 cmd = (struct i40e_nvm_access *)eeprom;
950 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
951 if (ret_val &&
952 ((hw->aq.asq_last_status != I40E_AQ_RC_EACCES) ||
953 (hw->debug_mask & I40E_DEBUG_NVM)))
954 dev_info(&pf->pdev->dev,
955 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
956 ret_val, hw->aq.asq_last_status, errno,
957 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
958 cmd->offset, cmd->data_size);
959
960 return errno;
961 }
962
963 /* normal ethtool get_eeprom support */
964 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
965
966 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
967 if (!eeprom_buff)
968 return -ENOMEM;
969
970 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
971 if (ret_val) {
972 dev_info(&pf->pdev->dev,
973 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
974 ret_val, hw->aq.asq_last_status);
975 goto free_buff;
976 }
977
978 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
979 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
980 len = I40E_NVM_SECTOR_SIZE;
981 last = false;
982 for (i = 0; i < sectors; i++) {
983 if (i == (sectors - 1)) {
984 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
985 last = true;
986 }
987 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
988 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
989 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
990 last, NULL);
991 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
992 dev_info(&pf->pdev->dev,
993 "read NVM failed, invalid offset 0x%x\n",
994 offset);
995 break;
996 } else if (ret_val &&
997 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
998 dev_info(&pf->pdev->dev,
999 "read NVM failed, access, offset 0x%x\n",
1000 offset);
1001 break;
1002 } else if (ret_val) {
1003 dev_info(&pf->pdev->dev,
1004 "read NVM failed offset %d err=%d status=0x%x\n",
1005 offset, ret_val, hw->aq.asq_last_status);
1006 break;
1007 }
1008 }
1009
1010 i40e_release_nvm(hw);
1011 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1012 free_buff:
1013 kfree(eeprom_buff);
1014 return ret_val;
1015 }
1016
1017 static int i40e_get_eeprom_len(struct net_device *netdev)
1018 {
1019 struct i40e_netdev_priv *np = netdev_priv(netdev);
1020 struct i40e_hw *hw = &np->vsi->back->hw;
1021 u32 val;
1022
1023 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1024 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1025 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1026 /* register returns value in power of 2, 64Kbyte chunks. */
1027 val = (64 * 1024) * BIT(val);
1028 return val;
1029 }
1030
1031 static int i40e_set_eeprom(struct net_device *netdev,
1032 struct ethtool_eeprom *eeprom, u8 *bytes)
1033 {
1034 struct i40e_netdev_priv *np = netdev_priv(netdev);
1035 struct i40e_hw *hw = &np->vsi->back->hw;
1036 struct i40e_pf *pf = np->vsi->back;
1037 struct i40e_nvm_access *cmd;
1038 int ret_val = 0;
1039 int errno;
1040 u32 magic;
1041
1042 /* normal ethtool set_eeprom is not supported */
1043 magic = hw->vendor_id | (hw->device_id << 16);
1044 if (eeprom->magic == magic)
1045 return -EOPNOTSUPP;
1046
1047 /* check for NVMUpdate access method */
1048 if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1049 return -EINVAL;
1050
1051 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1052 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1053 return -EBUSY;
1054
1055 cmd = (struct i40e_nvm_access *)eeprom;
1056 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1057 if (ret_val &&
1058 ((hw->aq.asq_last_status != I40E_AQ_RC_EPERM &&
1059 hw->aq.asq_last_status != I40E_AQ_RC_EBUSY) ||
1060 (hw->debug_mask & I40E_DEBUG_NVM)))
1061 dev_info(&pf->pdev->dev,
1062 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1063 ret_val, hw->aq.asq_last_status, errno,
1064 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1065 cmd->offset, cmd->data_size);
1066
1067 return errno;
1068 }
1069
1070 static void i40e_get_drvinfo(struct net_device *netdev,
1071 struct ethtool_drvinfo *drvinfo)
1072 {
1073 struct i40e_netdev_priv *np = netdev_priv(netdev);
1074 struct i40e_vsi *vsi = np->vsi;
1075 struct i40e_pf *pf = vsi->back;
1076
1077 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1078 strlcpy(drvinfo->version, i40e_driver_version_str,
1079 sizeof(drvinfo->version));
1080 strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw),
1081 sizeof(drvinfo->fw_version));
1082 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1083 sizeof(drvinfo->bus_info));
1084 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1085 }
1086
1087 static void i40e_get_ringparam(struct net_device *netdev,
1088 struct ethtool_ringparam *ring)
1089 {
1090 struct i40e_netdev_priv *np = netdev_priv(netdev);
1091 struct i40e_pf *pf = np->vsi->back;
1092 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1093
1094 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1095 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1096 ring->rx_mini_max_pending = 0;
1097 ring->rx_jumbo_max_pending = 0;
1098 ring->rx_pending = vsi->rx_rings[0]->count;
1099 ring->tx_pending = vsi->tx_rings[0]->count;
1100 ring->rx_mini_pending = 0;
1101 ring->rx_jumbo_pending = 0;
1102 }
1103
1104 static int i40e_set_ringparam(struct net_device *netdev,
1105 struct ethtool_ringparam *ring)
1106 {
1107 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1108 struct i40e_netdev_priv *np = netdev_priv(netdev);
1109 struct i40e_vsi *vsi = np->vsi;
1110 struct i40e_pf *pf = vsi->back;
1111 u32 new_rx_count, new_tx_count;
1112 int i, err = 0;
1113
1114 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1115 return -EINVAL;
1116
1117 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1118 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1119 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1120 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1121 netdev_info(netdev,
1122 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1123 ring->tx_pending, ring->rx_pending,
1124 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1125 return -EINVAL;
1126 }
1127
1128 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1129 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1130
1131 /* if nothing to do return success */
1132 if ((new_tx_count == vsi->tx_rings[0]->count) &&
1133 (new_rx_count == vsi->rx_rings[0]->count))
1134 return 0;
1135
1136 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1137 usleep_range(1000, 2000);
1138
1139 if (!netif_running(vsi->netdev)) {
1140 /* simple case - set for the next time the netdev is started */
1141 for (i = 0; i < vsi->num_queue_pairs; i++) {
1142 vsi->tx_rings[i]->count = new_tx_count;
1143 vsi->rx_rings[i]->count = new_rx_count;
1144 }
1145 goto done;
1146 }
1147
1148 /* We can't just free everything and then setup again,
1149 * because the ISRs in MSI-X mode get passed pointers
1150 * to the Tx and Rx ring structs.
1151 */
1152
1153 /* alloc updated Tx resources */
1154 if (new_tx_count != vsi->tx_rings[0]->count) {
1155 netdev_info(netdev,
1156 "Changing Tx descriptor count from %d to %d.\n",
1157 vsi->tx_rings[0]->count, new_tx_count);
1158 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1159 sizeof(struct i40e_ring), GFP_KERNEL);
1160 if (!tx_rings) {
1161 err = -ENOMEM;
1162 goto done;
1163 }
1164
1165 for (i = 0; i < vsi->num_queue_pairs; i++) {
1166 /* clone ring and setup updated count */
1167 tx_rings[i] = *vsi->tx_rings[i];
1168 tx_rings[i].count = new_tx_count;
1169 err = i40e_setup_tx_descriptors(&tx_rings[i]);
1170 if (err) {
1171 while (i) {
1172 i--;
1173 i40e_free_tx_resources(&tx_rings[i]);
1174 }
1175 kfree(tx_rings);
1176 tx_rings = NULL;
1177
1178 goto done;
1179 }
1180 }
1181 }
1182
1183 /* alloc updated Rx resources */
1184 if (new_rx_count != vsi->rx_rings[0]->count) {
1185 netdev_info(netdev,
1186 "Changing Rx descriptor count from %d to %d\n",
1187 vsi->rx_rings[0]->count, new_rx_count);
1188 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1189 sizeof(struct i40e_ring), GFP_KERNEL);
1190 if (!rx_rings) {
1191 err = -ENOMEM;
1192 goto free_tx;
1193 }
1194
1195 for (i = 0; i < vsi->num_queue_pairs; i++) {
1196 /* clone ring and setup updated count */
1197 rx_rings[i] = *vsi->rx_rings[i];
1198 rx_rings[i].count = new_rx_count;
1199 err = i40e_setup_rx_descriptors(&rx_rings[i]);
1200 if (err) {
1201 while (i) {
1202 i--;
1203 i40e_free_rx_resources(&rx_rings[i]);
1204 }
1205 kfree(rx_rings);
1206 rx_rings = NULL;
1207
1208 goto free_tx;
1209 }
1210 }
1211 }
1212
1213 /* Bring interface down, copy in the new ring info,
1214 * then restore the interface
1215 */
1216 i40e_down(vsi);
1217
1218 if (tx_rings) {
1219 for (i = 0; i < vsi->num_queue_pairs; i++) {
1220 i40e_free_tx_resources(vsi->tx_rings[i]);
1221 *vsi->tx_rings[i] = tx_rings[i];
1222 }
1223 kfree(tx_rings);
1224 tx_rings = NULL;
1225 }
1226
1227 if (rx_rings) {
1228 for (i = 0; i < vsi->num_queue_pairs; i++) {
1229 i40e_free_rx_resources(vsi->rx_rings[i]);
1230 *vsi->rx_rings[i] = rx_rings[i];
1231 }
1232 kfree(rx_rings);
1233 rx_rings = NULL;
1234 }
1235
1236 i40e_up(vsi);
1237
1238 free_tx:
1239 /* error cleanup if the Rx allocations failed after getting Tx */
1240 if (tx_rings) {
1241 for (i = 0; i < vsi->num_queue_pairs; i++)
1242 i40e_free_tx_resources(&tx_rings[i]);
1243 kfree(tx_rings);
1244 tx_rings = NULL;
1245 }
1246
1247 done:
1248 clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1249
1250 return err;
1251 }
1252
1253 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1254 {
1255 struct i40e_netdev_priv *np = netdev_priv(netdev);
1256 struct i40e_vsi *vsi = np->vsi;
1257 struct i40e_pf *pf = vsi->back;
1258
1259 switch (sset) {
1260 case ETH_SS_TEST:
1261 return I40E_TEST_LEN;
1262 case ETH_SS_STATS:
1263 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1264 int len = I40E_PF_STATS_LEN(netdev);
1265
1266 if (pf->lan_veb != I40E_NO_VEB)
1267 len += I40E_VEB_STATS_TOTAL;
1268 return len;
1269 } else {
1270 return I40E_VSI_STATS_LEN(netdev);
1271 }
1272 case ETH_SS_PRIV_FLAGS:
1273 return I40E_PRIV_FLAGS_STR_LEN;
1274 default:
1275 return -EOPNOTSUPP;
1276 }
1277 }
1278
1279 static void i40e_get_ethtool_stats(struct net_device *netdev,
1280 struct ethtool_stats *stats, u64 *data)
1281 {
1282 struct i40e_netdev_priv *np = netdev_priv(netdev);
1283 struct i40e_ring *tx_ring, *rx_ring;
1284 struct i40e_vsi *vsi = np->vsi;
1285 struct i40e_pf *pf = vsi->back;
1286 int i = 0;
1287 char *p;
1288 int j;
1289 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1290 unsigned int start;
1291
1292 i40e_update_stats(vsi);
1293
1294 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1295 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1296 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1297 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1298 }
1299 for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1300 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1301 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1302 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1303 }
1304 #ifdef I40E_FCOE
1305 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1306 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1307 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1308 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1309 }
1310 #endif
1311 rcu_read_lock();
1312 for (j = 0; j < vsi->num_queue_pairs; j++) {
1313 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1314
1315 if (!tx_ring)
1316 continue;
1317
1318 /* process Tx ring statistics */
1319 do {
1320 start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1321 data[i] = tx_ring->stats.packets;
1322 data[i + 1] = tx_ring->stats.bytes;
1323 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1324 i += 2;
1325
1326 /* Rx ring is the 2nd half of the queue pair */
1327 rx_ring = &tx_ring[1];
1328 do {
1329 start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1330 data[i] = rx_ring->stats.packets;
1331 data[i + 1] = rx_ring->stats.bytes;
1332 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1333 i += 2;
1334 }
1335 rcu_read_unlock();
1336 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1337 return;
1338
1339 if (pf->lan_veb != I40E_NO_VEB) {
1340 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1341 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1342 p = (char *)veb;
1343 p += i40e_gstrings_veb_stats[j].stat_offset;
1344 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1345 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1346 }
1347 }
1348 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1349 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1350 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1351 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1352 }
1353 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1354 data[i++] = pf->stats.priority_xon_tx[j];
1355 data[i++] = pf->stats.priority_xoff_tx[j];
1356 }
1357 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1358 data[i++] = pf->stats.priority_xon_rx[j];
1359 data[i++] = pf->stats.priority_xoff_rx[j];
1360 }
1361 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1362 data[i++] = pf->stats.priority_xon_2_xoff[j];
1363 }
1364
1365 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1366 u8 *data)
1367 {
1368 struct i40e_netdev_priv *np = netdev_priv(netdev);
1369 struct i40e_vsi *vsi = np->vsi;
1370 struct i40e_pf *pf = vsi->back;
1371 char *p = (char *)data;
1372 int i;
1373
1374 switch (stringset) {
1375 case ETH_SS_TEST:
1376 for (i = 0; i < I40E_TEST_LEN; i++) {
1377 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1378 data += ETH_GSTRING_LEN;
1379 }
1380 break;
1381 case ETH_SS_STATS:
1382 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1383 snprintf(p, ETH_GSTRING_LEN, "%s",
1384 i40e_gstrings_net_stats[i].stat_string);
1385 p += ETH_GSTRING_LEN;
1386 }
1387 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1388 snprintf(p, ETH_GSTRING_LEN, "%s",
1389 i40e_gstrings_misc_stats[i].stat_string);
1390 p += ETH_GSTRING_LEN;
1391 }
1392 #ifdef I40E_FCOE
1393 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1394 snprintf(p, ETH_GSTRING_LEN, "%s",
1395 i40e_gstrings_fcoe_stats[i].stat_string);
1396 p += ETH_GSTRING_LEN;
1397 }
1398 #endif
1399 for (i = 0; i < vsi->num_queue_pairs; i++) {
1400 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1401 p += ETH_GSTRING_LEN;
1402 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1403 p += ETH_GSTRING_LEN;
1404 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1405 p += ETH_GSTRING_LEN;
1406 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1407 p += ETH_GSTRING_LEN;
1408 }
1409 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1410 return;
1411
1412 if (pf->lan_veb != I40E_NO_VEB) {
1413 for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1414 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1415 i40e_gstrings_veb_stats[i].stat_string);
1416 p += ETH_GSTRING_LEN;
1417 }
1418 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1419 snprintf(p, ETH_GSTRING_LEN,
1420 "veb.tc_%u_tx_packets", i);
1421 p += ETH_GSTRING_LEN;
1422 snprintf(p, ETH_GSTRING_LEN,
1423 "veb.tc_%u_tx_bytes", i);
1424 p += ETH_GSTRING_LEN;
1425 snprintf(p, ETH_GSTRING_LEN,
1426 "veb.tc_%u_rx_packets", i);
1427 p += ETH_GSTRING_LEN;
1428 snprintf(p, ETH_GSTRING_LEN,
1429 "veb.tc_%u_rx_bytes", i);
1430 p += ETH_GSTRING_LEN;
1431 }
1432 }
1433 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1434 snprintf(p, ETH_GSTRING_LEN, "port.%s",
1435 i40e_gstrings_stats[i].stat_string);
1436 p += ETH_GSTRING_LEN;
1437 }
1438 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1439 snprintf(p, ETH_GSTRING_LEN,
1440 "port.tx_priority_%u_xon", i);
1441 p += ETH_GSTRING_LEN;
1442 snprintf(p, ETH_GSTRING_LEN,
1443 "port.tx_priority_%u_xoff", i);
1444 p += ETH_GSTRING_LEN;
1445 }
1446 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1447 snprintf(p, ETH_GSTRING_LEN,
1448 "port.rx_priority_%u_xon", i);
1449 p += ETH_GSTRING_LEN;
1450 snprintf(p, ETH_GSTRING_LEN,
1451 "port.rx_priority_%u_xoff", i);
1452 p += ETH_GSTRING_LEN;
1453 }
1454 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1455 snprintf(p, ETH_GSTRING_LEN,
1456 "port.rx_priority_%u_xon_2_xoff", i);
1457 p += ETH_GSTRING_LEN;
1458 }
1459 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1460 break;
1461 case ETH_SS_PRIV_FLAGS:
1462 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1463 memcpy(data, i40e_priv_flags_strings[i],
1464 ETH_GSTRING_LEN);
1465 data += ETH_GSTRING_LEN;
1466 }
1467 break;
1468 default:
1469 break;
1470 }
1471 }
1472
1473 static int i40e_get_ts_info(struct net_device *dev,
1474 struct ethtool_ts_info *info)
1475 {
1476 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1477
1478 /* only report HW timestamping if PTP is enabled */
1479 if (!(pf->flags & I40E_FLAG_PTP))
1480 return ethtool_op_get_ts_info(dev, info);
1481
1482 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1483 SOF_TIMESTAMPING_RX_SOFTWARE |
1484 SOF_TIMESTAMPING_SOFTWARE |
1485 SOF_TIMESTAMPING_TX_HARDWARE |
1486 SOF_TIMESTAMPING_RX_HARDWARE |
1487 SOF_TIMESTAMPING_RAW_HARDWARE;
1488
1489 if (pf->ptp_clock)
1490 info->phc_index = ptp_clock_index(pf->ptp_clock);
1491 else
1492 info->phc_index = -1;
1493
1494 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1495
1496 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1497 BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1498 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1499
1500 return 0;
1501 }
1502
1503 static int i40e_link_test(struct net_device *netdev, u64 *data)
1504 {
1505 struct i40e_netdev_priv *np = netdev_priv(netdev);
1506 struct i40e_pf *pf = np->vsi->back;
1507
1508 netif_info(pf, hw, netdev, "link test\n");
1509 if (i40e_get_link_status(&pf->hw))
1510 *data = 0;
1511 else
1512 *data = 1;
1513
1514 return *data;
1515 }
1516
1517 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1518 {
1519 struct i40e_netdev_priv *np = netdev_priv(netdev);
1520 struct i40e_pf *pf = np->vsi->back;
1521
1522 netif_info(pf, hw, netdev, "register test\n");
1523 *data = i40e_diag_reg_test(&pf->hw);
1524
1525 return *data;
1526 }
1527
1528 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1529 {
1530 struct i40e_netdev_priv *np = netdev_priv(netdev);
1531 struct i40e_pf *pf = np->vsi->back;
1532
1533 netif_info(pf, hw, netdev, "eeprom test\n");
1534 *data = i40e_diag_eeprom_test(&pf->hw);
1535
1536 /* forcebly clear the NVM Update state machine */
1537 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1538
1539 return *data;
1540 }
1541
1542 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1543 {
1544 struct i40e_netdev_priv *np = netdev_priv(netdev);
1545 struct i40e_pf *pf = np->vsi->back;
1546 u16 swc_old = pf->sw_int_count;
1547
1548 netif_info(pf, hw, netdev, "interrupt test\n");
1549 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1550 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1551 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1552 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1553 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1554 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1555 usleep_range(1000, 2000);
1556 *data = (swc_old == pf->sw_int_count);
1557
1558 return *data;
1559 }
1560
1561 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1562 {
1563 struct i40e_netdev_priv *np = netdev_priv(netdev);
1564 struct i40e_pf *pf = np->vsi->back;
1565
1566 netif_info(pf, hw, netdev, "loopback test not implemented\n");
1567 *data = 0;
1568
1569 return *data;
1570 }
1571
1572 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1573 {
1574 struct i40e_vf *vfs = pf->vf;
1575 int i;
1576
1577 for (i = 0; i < pf->num_alloc_vfs; i++)
1578 if (vfs[i].vf_states & I40E_VF_STAT_ACTIVE)
1579 return true;
1580 return false;
1581 }
1582
1583 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1584 {
1585 struct i40e_vsi **vsi = pf->vsi;
1586 int i;
1587
1588 for (i = 0; i < pf->num_alloc_vsi; i++) {
1589 if (!vsi[i])
1590 continue;
1591 if (vsi[i]->type == I40E_VSI_VMDQ2)
1592 return true;
1593 }
1594
1595 return false;
1596 }
1597
1598 static void i40e_diag_test(struct net_device *netdev,
1599 struct ethtool_test *eth_test, u64 *data)
1600 {
1601 struct i40e_netdev_priv *np = netdev_priv(netdev);
1602 bool if_running = netif_running(netdev);
1603 struct i40e_pf *pf = np->vsi->back;
1604
1605 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1606 /* Offline tests */
1607 netif_info(pf, drv, netdev, "offline testing starting\n");
1608
1609 set_bit(__I40E_TESTING, &pf->state);
1610
1611 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1612 dev_warn(&pf->pdev->dev,
1613 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1614 data[I40E_ETH_TEST_REG] = 1;
1615 data[I40E_ETH_TEST_EEPROM] = 1;
1616 data[I40E_ETH_TEST_INTR] = 1;
1617 data[I40E_ETH_TEST_LOOPBACK] = 1;
1618 data[I40E_ETH_TEST_LINK] = 1;
1619 eth_test->flags |= ETH_TEST_FL_FAILED;
1620 clear_bit(__I40E_TESTING, &pf->state);
1621 goto skip_ol_tests;
1622 }
1623
1624 /* If the device is online then take it offline */
1625 if (if_running)
1626 /* indicate we're in test mode */
1627 dev_close(netdev);
1628 else
1629 /* This reset does not affect link - if it is
1630 * changed to a type of reset that does affect
1631 * link then the following link test would have
1632 * to be moved to before the reset
1633 */
1634 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1635
1636 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1637 eth_test->flags |= ETH_TEST_FL_FAILED;
1638
1639 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1640 eth_test->flags |= ETH_TEST_FL_FAILED;
1641
1642 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1643 eth_test->flags |= ETH_TEST_FL_FAILED;
1644
1645 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1646 eth_test->flags |= ETH_TEST_FL_FAILED;
1647
1648 /* run reg test last, a reset is required after it */
1649 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1650 eth_test->flags |= ETH_TEST_FL_FAILED;
1651
1652 clear_bit(__I40E_TESTING, &pf->state);
1653 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1654
1655 if (if_running)
1656 dev_open(netdev);
1657 } else {
1658 /* Online tests */
1659 netif_info(pf, drv, netdev, "online testing starting\n");
1660
1661 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1662 eth_test->flags |= ETH_TEST_FL_FAILED;
1663
1664 /* Offline only tests, not run in online; pass by default */
1665 data[I40E_ETH_TEST_REG] = 0;
1666 data[I40E_ETH_TEST_EEPROM] = 0;
1667 data[I40E_ETH_TEST_INTR] = 0;
1668 data[I40E_ETH_TEST_LOOPBACK] = 0;
1669 }
1670
1671 skip_ol_tests:
1672
1673 netif_info(pf, drv, netdev, "testing finished\n");
1674 }
1675
1676 static void i40e_get_wol(struct net_device *netdev,
1677 struct ethtool_wolinfo *wol)
1678 {
1679 struct i40e_netdev_priv *np = netdev_priv(netdev);
1680 struct i40e_pf *pf = np->vsi->back;
1681 struct i40e_hw *hw = &pf->hw;
1682 u16 wol_nvm_bits;
1683
1684 /* NVM bit on means WoL disabled for the port */
1685 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1686 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1687 wol->supported = 0;
1688 wol->wolopts = 0;
1689 } else {
1690 wol->supported = WAKE_MAGIC;
1691 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1692 }
1693 }
1694
1695 /**
1696 * i40e_set_wol - set the WakeOnLAN configuration
1697 * @netdev: the netdev in question
1698 * @wol: the ethtool WoL setting data
1699 **/
1700 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1701 {
1702 struct i40e_netdev_priv *np = netdev_priv(netdev);
1703 struct i40e_pf *pf = np->vsi->back;
1704 struct i40e_vsi *vsi = np->vsi;
1705 struct i40e_hw *hw = &pf->hw;
1706 u16 wol_nvm_bits;
1707
1708 /* WoL not supported if this isn't the controlling PF on the port */
1709 if (hw->partition_id != 1) {
1710 i40e_partition_setting_complaint(pf);
1711 return -EOPNOTSUPP;
1712 }
1713
1714 if (vsi != pf->vsi[pf->lan_vsi])
1715 return -EOPNOTSUPP;
1716
1717 /* NVM bit on means WoL disabled for the port */
1718 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1719 if (BIT(hw->port) & wol_nvm_bits)
1720 return -EOPNOTSUPP;
1721
1722 /* only magic packet is supported */
1723 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1724 return -EOPNOTSUPP;
1725
1726 /* is this a new value? */
1727 if (pf->wol_en != !!wol->wolopts) {
1728 pf->wol_en = !!wol->wolopts;
1729 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1730 }
1731
1732 return 0;
1733 }
1734
1735 static int i40e_set_phys_id(struct net_device *netdev,
1736 enum ethtool_phys_id_state state)
1737 {
1738 struct i40e_netdev_priv *np = netdev_priv(netdev);
1739 struct i40e_pf *pf = np->vsi->back;
1740 struct i40e_hw *hw = &pf->hw;
1741 int blink_freq = 2;
1742
1743 switch (state) {
1744 case ETHTOOL_ID_ACTIVE:
1745 pf->led_status = i40e_led_get(hw);
1746 return blink_freq;
1747 case ETHTOOL_ID_ON:
1748 i40e_led_set(hw, 0xF, false);
1749 break;
1750 case ETHTOOL_ID_OFF:
1751 i40e_led_set(hw, 0x0, false);
1752 break;
1753 case ETHTOOL_ID_INACTIVE:
1754 i40e_led_set(hw, pf->led_status, false);
1755 break;
1756 default:
1757 break;
1758 }
1759
1760 return 0;
1761 }
1762
1763 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1764 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1765 * 125us (8000 interrupts per second) == ITR(62)
1766 */
1767
1768 static int i40e_get_coalesce(struct net_device *netdev,
1769 struct ethtool_coalesce *ec)
1770 {
1771 struct i40e_netdev_priv *np = netdev_priv(netdev);
1772 struct i40e_vsi *vsi = np->vsi;
1773
1774 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1775 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1776
1777 if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1778 ec->use_adaptive_rx_coalesce = 1;
1779
1780 if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1781 ec->use_adaptive_tx_coalesce = 1;
1782
1783 ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1784 ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1785
1786 return 0;
1787 }
1788
1789 static int i40e_set_coalesce(struct net_device *netdev,
1790 struct ethtool_coalesce *ec)
1791 {
1792 struct i40e_netdev_priv *np = netdev_priv(netdev);
1793 struct i40e_q_vector *q_vector;
1794 struct i40e_vsi *vsi = np->vsi;
1795 struct i40e_pf *pf = vsi->back;
1796 struct i40e_hw *hw = &pf->hw;
1797 u16 vector;
1798 int i;
1799
1800 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1801 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1802
1803 vector = vsi->base_vector;
1804 if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1805 (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1806 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1807 } else if (ec->rx_coalesce_usecs == 0) {
1808 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1809 if (ec->use_adaptive_rx_coalesce)
1810 netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1811 } else {
1812 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1813 return -EINVAL;
1814 }
1815
1816 if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1817 (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1818 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1819 } else if (ec->tx_coalesce_usecs == 0) {
1820 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1821 if (ec->use_adaptive_tx_coalesce)
1822 netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1823 } else {
1824 netif_info(pf, drv, netdev,
1825 "Invalid value, tx-usecs range is 0-8160\n");
1826 return -EINVAL;
1827 }
1828
1829 if (ec->use_adaptive_rx_coalesce)
1830 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1831 else
1832 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1833
1834 if (ec->use_adaptive_tx_coalesce)
1835 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1836 else
1837 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1838
1839 for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1840 q_vector = vsi->q_vectors[i];
1841 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1842 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1843 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1844 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1845 i40e_flush(hw);
1846 }
1847
1848 return 0;
1849 }
1850
1851 /**
1852 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1853 * @pf: pointer to the physical function struct
1854 * @cmd: ethtool rxnfc command
1855 *
1856 * Returns Success if the flow is supported, else Invalid Input.
1857 **/
1858 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1859 {
1860 cmd->data = 0;
1861
1862 if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
1863 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
1864 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
1865 return 0;
1866 }
1867 /* Report default options for RSS on i40e */
1868 switch (cmd->flow_type) {
1869 case TCP_V4_FLOW:
1870 case UDP_V4_FLOW:
1871 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1872 /* fall through to add IP fields */
1873 case SCTP_V4_FLOW:
1874 case AH_ESP_V4_FLOW:
1875 case AH_V4_FLOW:
1876 case ESP_V4_FLOW:
1877 case IPV4_FLOW:
1878 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1879 break;
1880 case TCP_V6_FLOW:
1881 case UDP_V6_FLOW:
1882 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1883 /* fall through to add IP fields */
1884 case SCTP_V6_FLOW:
1885 case AH_ESP_V6_FLOW:
1886 case AH_V6_FLOW:
1887 case ESP_V6_FLOW:
1888 case IPV6_FLOW:
1889 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1890 break;
1891 default:
1892 return -EINVAL;
1893 }
1894
1895 return 0;
1896 }
1897
1898 /**
1899 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
1900 * @pf: Pointer to the physical function struct
1901 * @cmd: The command to get or set Rx flow classification rules
1902 * @rule_locs: Array of used rule locations
1903 *
1904 * This function populates both the total and actual rule count of
1905 * the ethtool flow classification command
1906 *
1907 * Returns 0 on success or -EMSGSIZE if entry not found
1908 **/
1909 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
1910 struct ethtool_rxnfc *cmd,
1911 u32 *rule_locs)
1912 {
1913 struct i40e_fdir_filter *rule;
1914 struct hlist_node *node2;
1915 int cnt = 0;
1916
1917 /* report total rule count */
1918 cmd->data = i40e_get_fd_cnt_all(pf);
1919
1920 hlist_for_each_entry_safe(rule, node2,
1921 &pf->fdir_filter_list, fdir_node) {
1922 if (cnt == cmd->rule_cnt)
1923 return -EMSGSIZE;
1924
1925 rule_locs[cnt] = rule->fd_id;
1926 cnt++;
1927 }
1928
1929 cmd->rule_cnt = cnt;
1930
1931 return 0;
1932 }
1933
1934 /**
1935 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
1936 * @pf: Pointer to the physical function struct
1937 * @cmd: The command to get or set Rx flow classification rules
1938 *
1939 * This function looks up a filter based on the Rx flow classification
1940 * command and fills the flow spec info for it if found
1941 *
1942 * Returns 0 on success or -EINVAL if filter not found
1943 **/
1944 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
1945 struct ethtool_rxnfc *cmd)
1946 {
1947 struct ethtool_rx_flow_spec *fsp =
1948 (struct ethtool_rx_flow_spec *)&cmd->fs;
1949 struct i40e_fdir_filter *rule = NULL;
1950 struct hlist_node *node2;
1951
1952 hlist_for_each_entry_safe(rule, node2,
1953 &pf->fdir_filter_list, fdir_node) {
1954 if (fsp->location <= rule->fd_id)
1955 break;
1956 }
1957
1958 if (!rule || fsp->location != rule->fd_id)
1959 return -EINVAL;
1960
1961 fsp->flow_type = rule->flow_type;
1962 if (fsp->flow_type == IP_USER_FLOW) {
1963 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
1964 fsp->h_u.usr_ip4_spec.proto = 0;
1965 fsp->m_u.usr_ip4_spec.proto = 0;
1966 }
1967
1968 /* Reverse the src and dest notion, since the HW views them from
1969 * Tx perspective where as the user expects it from Rx filter view.
1970 */
1971 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
1972 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
1973 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
1974 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
1975
1976 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
1977 fsp->ring_cookie = RX_CLS_FLOW_DISC;
1978 else
1979 fsp->ring_cookie = rule->q_index;
1980
1981 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
1982 struct i40e_vsi *vsi;
1983
1984 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
1985 if (vsi && vsi->type == I40E_VSI_SRIOV) {
1986 fsp->h_ext.data[1] = htonl(vsi->vf_id);
1987 fsp->m_ext.data[1] = htonl(0x1);
1988 }
1989 }
1990
1991 return 0;
1992 }
1993
1994 /**
1995 * i40e_get_rxnfc - command to get RX flow classification rules
1996 * @netdev: network interface device structure
1997 * @cmd: ethtool rxnfc command
1998 *
1999 * Returns Success if the command is supported.
2000 **/
2001 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2002 u32 *rule_locs)
2003 {
2004 struct i40e_netdev_priv *np = netdev_priv(netdev);
2005 struct i40e_vsi *vsi = np->vsi;
2006 struct i40e_pf *pf = vsi->back;
2007 int ret = -EOPNOTSUPP;
2008
2009 switch (cmd->cmd) {
2010 case ETHTOOL_GRXRINGS:
2011 cmd->data = vsi->alloc_queue_pairs;
2012 ret = 0;
2013 break;
2014 case ETHTOOL_GRXFH:
2015 ret = i40e_get_rss_hash_opts(pf, cmd);
2016 break;
2017 case ETHTOOL_GRXCLSRLCNT:
2018 cmd->rule_cnt = pf->fdir_pf_active_filters;
2019 /* report total rule count */
2020 cmd->data = i40e_get_fd_cnt_all(pf);
2021 ret = 0;
2022 break;
2023 case ETHTOOL_GRXCLSRULE:
2024 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2025 break;
2026 case ETHTOOL_GRXCLSRLALL:
2027 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2028 break;
2029 default:
2030 break;
2031 }
2032
2033 return ret;
2034 }
2035
2036 /**
2037 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2038 * @pf: pointer to the physical function struct
2039 * @cmd: ethtool rxnfc command
2040 *
2041 * Returns Success if the flow input set is supported.
2042 **/
2043 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2044 {
2045 struct i40e_hw *hw = &pf->hw;
2046 u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
2047 ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
2048
2049 /* RSS does not support anything other than hashing
2050 * to queues on src and dst IPs and ports
2051 */
2052 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2053 RXH_L4_B_0_1 | RXH_L4_B_2_3))
2054 return -EINVAL;
2055
2056 /* We need at least the IP SRC and DEST fields for hashing */
2057 if (!(nfc->data & RXH_IP_SRC) ||
2058 !(nfc->data & RXH_IP_DST))
2059 return -EINVAL;
2060
2061 switch (nfc->flow_type) {
2062 case TCP_V4_FLOW:
2063 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2064 case 0:
2065 hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2066 break;
2067 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2068 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2069 break;
2070 default:
2071 return -EINVAL;
2072 }
2073 break;
2074 case TCP_V6_FLOW:
2075 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2076 case 0:
2077 hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2078 break;
2079 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2080 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2081 break;
2082 default:
2083 return -EINVAL;
2084 }
2085 break;
2086 case UDP_V4_FLOW:
2087 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2088 case 0:
2089 hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2090 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2091 break;
2092 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2093 hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2094 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2095 break;
2096 default:
2097 return -EINVAL;
2098 }
2099 break;
2100 case UDP_V6_FLOW:
2101 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2102 case 0:
2103 hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2104 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2105 break;
2106 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2107 hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2108 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2109 break;
2110 default:
2111 return -EINVAL;
2112 }
2113 break;
2114 case AH_ESP_V4_FLOW:
2115 case AH_V4_FLOW:
2116 case ESP_V4_FLOW:
2117 case SCTP_V4_FLOW:
2118 if ((nfc->data & RXH_L4_B_0_1) ||
2119 (nfc->data & RXH_L4_B_2_3))
2120 return -EINVAL;
2121 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2122 break;
2123 case AH_ESP_V6_FLOW:
2124 case AH_V6_FLOW:
2125 case ESP_V6_FLOW:
2126 case SCTP_V6_FLOW:
2127 if ((nfc->data & RXH_L4_B_0_1) ||
2128 (nfc->data & RXH_L4_B_2_3))
2129 return -EINVAL;
2130 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2131 break;
2132 case IPV4_FLOW:
2133 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2134 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2135 break;
2136 case IPV6_FLOW:
2137 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2138 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2139 break;
2140 default:
2141 return -EINVAL;
2142 }
2143
2144 wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
2145 wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2146 i40e_flush(hw);
2147
2148 /* Save setting for future output/update */
2149 pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2150
2151 return 0;
2152 }
2153
2154 /**
2155 * i40e_match_fdir_input_set - Match a new filter against an existing one
2156 * @rule: The filter already added
2157 * @input: The new filter to comapre against
2158 *
2159 * Returns true if the two input set match
2160 **/
2161 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2162 struct i40e_fdir_filter *input)
2163 {
2164 if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2165 (rule->src_ip[0] != input->src_ip[0]) ||
2166 (rule->dst_port != input->dst_port) ||
2167 (rule->src_port != input->src_port))
2168 return false;
2169 return true;
2170 }
2171
2172 /**
2173 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2174 * @vsi: Pointer to the targeted VSI
2175 * @input: The filter to update or NULL to indicate deletion
2176 * @sw_idx: Software index to the filter
2177 * @cmd: The command to get or set Rx flow classification rules
2178 *
2179 * This function updates (or deletes) a Flow Director entry from
2180 * the hlist of the corresponding PF
2181 *
2182 * Returns 0 on success
2183 **/
2184 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2185 struct i40e_fdir_filter *input,
2186 u16 sw_idx,
2187 struct ethtool_rxnfc *cmd)
2188 {
2189 struct i40e_fdir_filter *rule, *parent;
2190 struct i40e_pf *pf = vsi->back;
2191 struct hlist_node *node2;
2192 int err = -EINVAL;
2193
2194 parent = NULL;
2195 rule = NULL;
2196
2197 hlist_for_each_entry_safe(rule, node2,
2198 &pf->fdir_filter_list, fdir_node) {
2199 /* hash found, or no matching entry */
2200 if (rule->fd_id >= sw_idx)
2201 break;
2202 parent = rule;
2203 }
2204
2205 /* if there is an old rule occupying our place remove it */
2206 if (rule && (rule->fd_id == sw_idx)) {
2207 if (input && !i40e_match_fdir_input_set(rule, input))
2208 err = i40e_add_del_fdir(vsi, rule, false);
2209 else if (!input)
2210 err = i40e_add_del_fdir(vsi, rule, false);
2211 hlist_del(&rule->fdir_node);
2212 kfree(rule);
2213 pf->fdir_pf_active_filters--;
2214 }
2215
2216 /* If no input this was a delete, err should be 0 if a rule was
2217 * successfully found and removed from the list else -EINVAL
2218 */
2219 if (!input)
2220 return err;
2221
2222 /* initialize node and set software index */
2223 INIT_HLIST_NODE(&input->fdir_node);
2224
2225 /* add filter to the list */
2226 if (parent)
2227 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2228 else
2229 hlist_add_head(&input->fdir_node,
2230 &pf->fdir_filter_list);
2231
2232 /* update counts */
2233 pf->fdir_pf_active_filters++;
2234
2235 return 0;
2236 }
2237
2238 /**
2239 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2240 * @vsi: Pointer to the targeted VSI
2241 * @cmd: The command to get or set Rx flow classification rules
2242 *
2243 * The function removes a Flow Director filter entry from the
2244 * hlist of the corresponding PF
2245 *
2246 * Returns 0 on success
2247 */
2248 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2249 struct ethtool_rxnfc *cmd)
2250 {
2251 struct ethtool_rx_flow_spec *fsp =
2252 (struct ethtool_rx_flow_spec *)&cmd->fs;
2253 struct i40e_pf *pf = vsi->back;
2254 int ret = 0;
2255
2256 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2257 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2258 return -EBUSY;
2259
2260 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2261 return -EBUSY;
2262
2263 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2264
2265 i40e_fdir_check_and_reenable(pf);
2266 return ret;
2267 }
2268
2269 /**
2270 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2271 * @vsi: pointer to the targeted VSI
2272 * @cmd: command to get or set RX flow classification rules
2273 *
2274 * Add Flow Director filters for a specific flow spec based on their
2275 * protocol. Returns 0 if the filters were successfully added.
2276 **/
2277 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2278 struct ethtool_rxnfc *cmd)
2279 {
2280 struct ethtool_rx_flow_spec *fsp;
2281 struct i40e_fdir_filter *input;
2282 struct i40e_pf *pf;
2283 int ret = -EINVAL;
2284 u16 vf_id;
2285
2286 if (!vsi)
2287 return -EINVAL;
2288
2289 pf = vsi->back;
2290
2291 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2292 return -EOPNOTSUPP;
2293
2294 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2295 return -ENOSPC;
2296
2297 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2298 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2299 return -EBUSY;
2300
2301 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2302 return -EBUSY;
2303
2304 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2305
2306 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2307 pf->hw.func_caps.fd_filters_guaranteed)) {
2308 return -EINVAL;
2309 }
2310
2311 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2312 (fsp->ring_cookie >= vsi->num_queue_pairs))
2313 return -EINVAL;
2314
2315 input = kzalloc(sizeof(*input), GFP_KERNEL);
2316
2317 if (!input)
2318 return -ENOMEM;
2319
2320 input->fd_id = fsp->location;
2321
2322 if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2323 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2324 else
2325 input->dest_ctl =
2326 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2327
2328 input->q_index = fsp->ring_cookie;
2329 input->flex_off = 0;
2330 input->pctype = 0;
2331 input->dest_vsi = vsi->id;
2332 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2333 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2334 input->flow_type = fsp->flow_type;
2335 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2336
2337 /* Reverse the src and dest notion, since the HW expects them to be from
2338 * Tx perspective where as the input from user is from Rx filter view.
2339 */
2340 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2341 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2342 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2343 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2344
2345 if (ntohl(fsp->m_ext.data[1])) {
2346 if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2347 netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2348 goto free_input;
2349 }
2350 vf_id = ntohl(fsp->h_ext.data[1]);
2351 /* Find vsi id from vf id and override dest vsi */
2352 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2353 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2354 netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2355 goto free_input;
2356 }
2357 }
2358
2359 ret = i40e_add_del_fdir(vsi, input, true);
2360 free_input:
2361 if (ret)
2362 kfree(input);
2363 else
2364 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2365
2366 return ret;
2367 }
2368
2369 /**
2370 * i40e_set_rxnfc - command to set RX flow classification rules
2371 * @netdev: network interface device structure
2372 * @cmd: ethtool rxnfc command
2373 *
2374 * Returns Success if the command is supported.
2375 **/
2376 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2377 {
2378 struct i40e_netdev_priv *np = netdev_priv(netdev);
2379 struct i40e_vsi *vsi = np->vsi;
2380 struct i40e_pf *pf = vsi->back;
2381 int ret = -EOPNOTSUPP;
2382
2383 switch (cmd->cmd) {
2384 case ETHTOOL_SRXFH:
2385 ret = i40e_set_rss_hash_opt(pf, cmd);
2386 break;
2387 case ETHTOOL_SRXCLSRLINS:
2388 ret = i40e_add_fdir_ethtool(vsi, cmd);
2389 break;
2390 case ETHTOOL_SRXCLSRLDEL:
2391 ret = i40e_del_fdir_entry(vsi, cmd);
2392 break;
2393 default:
2394 break;
2395 }
2396
2397 return ret;
2398 }
2399
2400 /**
2401 * i40e_max_channels - get Max number of combined channels supported
2402 * @vsi: vsi pointer
2403 **/
2404 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2405 {
2406 /* TODO: This code assumes DCB and FD is disabled for now. */
2407 return vsi->alloc_queue_pairs;
2408 }
2409
2410 /**
2411 * i40e_get_channels - Get the current channels enabled and max supported etc.
2412 * @netdev: network interface device structure
2413 * @ch: ethtool channels structure
2414 *
2415 * We don't support separate tx and rx queues as channels. The other count
2416 * represents how many queues are being used for control. max_combined counts
2417 * how many queue pairs we can support. They may not be mapped 1 to 1 with
2418 * q_vectors since we support a lot more queue pairs than q_vectors.
2419 **/
2420 static void i40e_get_channels(struct net_device *dev,
2421 struct ethtool_channels *ch)
2422 {
2423 struct i40e_netdev_priv *np = netdev_priv(dev);
2424 struct i40e_vsi *vsi = np->vsi;
2425 struct i40e_pf *pf = vsi->back;
2426
2427 /* report maximum channels */
2428 ch->max_combined = i40e_max_channels(vsi);
2429
2430 /* report info for other vector */
2431 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2432 ch->max_other = ch->other_count;
2433
2434 /* Note: This code assumes DCB is disabled for now. */
2435 ch->combined_count = vsi->num_queue_pairs;
2436 }
2437
2438 /**
2439 * i40e_set_channels - Set the new channels count.
2440 * @netdev: network interface device structure
2441 * @ch: ethtool channels structure
2442 *
2443 * The new channels count may not be the same as requested by the user
2444 * since it gets rounded down to a power of 2 value.
2445 **/
2446 static int i40e_set_channels(struct net_device *dev,
2447 struct ethtool_channels *ch)
2448 {
2449 struct i40e_netdev_priv *np = netdev_priv(dev);
2450 unsigned int count = ch->combined_count;
2451 struct i40e_vsi *vsi = np->vsi;
2452 struct i40e_pf *pf = vsi->back;
2453 int new_count;
2454
2455 /* We do not support setting channels for any other VSI at present */
2456 if (vsi->type != I40E_VSI_MAIN)
2457 return -EINVAL;
2458
2459 /* verify they are not requesting separate vectors */
2460 if (!count || ch->rx_count || ch->tx_count)
2461 return -EINVAL;
2462
2463 /* verify other_count has not changed */
2464 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2465 return -EINVAL;
2466
2467 /* verify the number of channels does not exceed hardware limits */
2468 if (count > i40e_max_channels(vsi))
2469 return -EINVAL;
2470
2471 /* update feature limits from largest to smallest supported values */
2472 /* TODO: Flow director limit, DCB etc */
2473
2474 /* use rss_reconfig to rebuild with new queue count and update traffic
2475 * class queue mapping
2476 */
2477 new_count = i40e_reconfig_rss_queues(pf, count);
2478 if (new_count > 0)
2479 return 0;
2480 else
2481 return -EINVAL;
2482 }
2483
2484 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
2485 /**
2486 * i40e_get_rxfh_key_size - get the RSS hash key size
2487 * @netdev: network interface device structure
2488 *
2489 * Returns the table size.
2490 **/
2491 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2492 {
2493 return I40E_HKEY_ARRAY_SIZE;
2494 }
2495
2496 /**
2497 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2498 * @netdev: network interface device structure
2499 *
2500 * Returns the table size.
2501 **/
2502 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2503 {
2504 return I40E_HLUT_ARRAY_SIZE;
2505 }
2506
2507 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2508 u8 *hfunc)
2509 {
2510 struct i40e_netdev_priv *np = netdev_priv(netdev);
2511 struct i40e_vsi *vsi = np->vsi;
2512 struct i40e_pf *pf = vsi->back;
2513 struct i40e_hw *hw = &pf->hw;
2514 u32 reg_val;
2515 int i, j;
2516
2517 if (hfunc)
2518 *hfunc = ETH_RSS_HASH_TOP;
2519
2520 if (!indir)
2521 return 0;
2522
2523 for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2524 reg_val = rd32(hw, I40E_PFQF_HLUT(i));
2525 indir[j++] = reg_val & 0xff;
2526 indir[j++] = (reg_val >> 8) & 0xff;
2527 indir[j++] = (reg_val >> 16) & 0xff;
2528 indir[j++] = (reg_val >> 24) & 0xff;
2529 }
2530
2531 if (key) {
2532 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2533 reg_val = rd32(hw, I40E_PFQF_HKEY(i));
2534 key[j++] = (u8)(reg_val & 0xff);
2535 key[j++] = (u8)((reg_val >> 8) & 0xff);
2536 key[j++] = (u8)((reg_val >> 16) & 0xff);
2537 key[j++] = (u8)((reg_val >> 24) & 0xff);
2538 }
2539 }
2540 return 0;
2541 }
2542
2543 /**
2544 * i40e_set_rxfh - set the rx flow hash indirection table
2545 * @netdev: network interface device structure
2546 * @indir: indirection table
2547 * @key: hash key
2548 *
2549 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2550 * returns 0 after programming the table.
2551 **/
2552 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2553 const u8 *key, const u8 hfunc)
2554 {
2555 struct i40e_netdev_priv *np = netdev_priv(netdev);
2556 struct i40e_vsi *vsi = np->vsi;
2557 struct i40e_pf *pf = vsi->back;
2558 struct i40e_hw *hw = &pf->hw;
2559 u32 reg_val;
2560 int i, j;
2561
2562 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2563 return -EOPNOTSUPP;
2564
2565 if (!indir)
2566 return 0;
2567
2568 for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2569 reg_val = indir[j++];
2570 reg_val |= indir[j++] << 8;
2571 reg_val |= indir[j++] << 16;
2572 reg_val |= indir[j++] << 24;
2573 wr32(hw, I40E_PFQF_HLUT(i), reg_val);
2574 }
2575
2576 if (key) {
2577 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2578 reg_val = key[j++];
2579 reg_val |= key[j++] << 8;
2580 reg_val |= key[j++] << 16;
2581 reg_val |= key[j++] << 24;
2582 wr32(hw, I40E_PFQF_HKEY(i), reg_val);
2583 }
2584 }
2585 return 0;
2586 }
2587
2588 /**
2589 * i40e_get_priv_flags - report device private flags
2590 * @dev: network interface device structure
2591 *
2592 * The get string set count and the string set should be matched for each
2593 * flag returned. Add new strings for each flag to the i40e_priv_flags_strings
2594 * array.
2595 *
2596 * Returns a u32 bitmap of flags.
2597 **/
2598 static u32 i40e_get_priv_flags(struct net_device *dev)
2599 {
2600 struct i40e_netdev_priv *np = netdev_priv(dev);
2601 struct i40e_vsi *vsi = np->vsi;
2602 struct i40e_pf *pf = vsi->back;
2603 u32 ret_flags = 0;
2604
2605 ret_flags |= pf->hw.func_caps.npar_enable ?
2606 I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2607
2608 return ret_flags;
2609 }
2610
2611 static const struct ethtool_ops i40e_ethtool_ops = {
2612 .get_settings = i40e_get_settings,
2613 .set_settings = i40e_set_settings,
2614 .get_drvinfo = i40e_get_drvinfo,
2615 .get_regs_len = i40e_get_regs_len,
2616 .get_regs = i40e_get_regs,
2617 .nway_reset = i40e_nway_reset,
2618 .get_link = ethtool_op_get_link,
2619 .get_wol = i40e_get_wol,
2620 .set_wol = i40e_set_wol,
2621 .set_eeprom = i40e_set_eeprom,
2622 .get_eeprom_len = i40e_get_eeprom_len,
2623 .get_eeprom = i40e_get_eeprom,
2624 .get_ringparam = i40e_get_ringparam,
2625 .set_ringparam = i40e_set_ringparam,
2626 .get_pauseparam = i40e_get_pauseparam,
2627 .set_pauseparam = i40e_set_pauseparam,
2628 .get_msglevel = i40e_get_msglevel,
2629 .set_msglevel = i40e_set_msglevel,
2630 .get_rxnfc = i40e_get_rxnfc,
2631 .set_rxnfc = i40e_set_rxnfc,
2632 .self_test = i40e_diag_test,
2633 .get_strings = i40e_get_strings,
2634 .set_phys_id = i40e_set_phys_id,
2635 .get_sset_count = i40e_get_sset_count,
2636 .get_ethtool_stats = i40e_get_ethtool_stats,
2637 .get_coalesce = i40e_get_coalesce,
2638 .set_coalesce = i40e_set_coalesce,
2639 .get_rxfh_key_size = i40e_get_rxfh_key_size,
2640 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
2641 .get_rxfh = i40e_get_rxfh,
2642 .set_rxfh = i40e_set_rxfh,
2643 .get_channels = i40e_get_channels,
2644 .set_channels = i40e_set_channels,
2645 .get_ts_info = i40e_get_ts_info,
2646 .get_priv_flags = i40e_get_priv_flags,
2647 };
2648
2649 void i40e_set_ethtool_ops(struct net_device *netdev)
2650 {
2651 netdev->ethtool_ops = &i40e_ethtool_ops;
2652 }
Linux kernel - Deliverables
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