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vfio/pci: Fix typos in comments
[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 - 2016 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 I40E_VSI_STAT("tx_linearize", tx_linearize),
91 I40E_VSI_STAT("tx_force_wb", tx_force_wb),
92 I40E_VSI_STAT("tx_lost_interrupt", tx_lost_interrupt),
93 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
94 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
95 };
96
97 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
98 * but they are separate. This device supports Virtualization, and
99 * as such might have several netdevs supporting VMDq and FCoE going
100 * through a single port. The NETDEV_STATs are for individual netdevs
101 * seen at the top of the stack, and the PF_STATs are for the physical
102 * function at the bottom of the stack hosting those netdevs.
103 *
104 * The PF_STATs are appended to the netdev stats only when ethtool -S
105 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
106 */
107 static struct i40e_stats i40e_gstrings_stats[] = {
108 I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
109 I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
110 I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
111 I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
112 I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
113 I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
114 I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
115 I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
116 I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
117 I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
118 I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
119 I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
120 I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
121 I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
122 I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
123 I40E_PF_STAT("tx_timeout", tx_timeout_count),
124 I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
125 I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
126 I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
127 I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
128 I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
129 I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
130 I40E_PF_STAT("rx_size_64", stats.rx_size_64),
131 I40E_PF_STAT("rx_size_127", stats.rx_size_127),
132 I40E_PF_STAT("rx_size_255", stats.rx_size_255),
133 I40E_PF_STAT("rx_size_511", stats.rx_size_511),
134 I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
135 I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
136 I40E_PF_STAT("rx_size_big", stats.rx_size_big),
137 I40E_PF_STAT("tx_size_64", stats.tx_size_64),
138 I40E_PF_STAT("tx_size_127", stats.tx_size_127),
139 I40E_PF_STAT("tx_size_255", stats.tx_size_255),
140 I40E_PF_STAT("tx_size_511", stats.tx_size_511),
141 I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
142 I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
143 I40E_PF_STAT("tx_size_big", stats.tx_size_big),
144 I40E_PF_STAT("rx_undersize", stats.rx_undersize),
145 I40E_PF_STAT("rx_fragments", stats.rx_fragments),
146 I40E_PF_STAT("rx_oversize", stats.rx_oversize),
147 I40E_PF_STAT("rx_jabber", stats.rx_jabber),
148 I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
149 I40E_PF_STAT("arq_overflows", arq_overflows),
150 I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
151 I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
152 I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
153 I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
154 I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
155 I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
156 I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
157
158 /* LPI stats */
159 I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
160 I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
161 I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
162 I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
163 };
164
165 #ifdef I40E_FCOE
166 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
167 I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
168 I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
169 I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
170 I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
171 I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
172 I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
173 I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
174 I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
175 };
176
177 #endif /* I40E_FCOE */
178 #define I40E_QUEUE_STATS_LEN(n) \
179 (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
180 * 2 /* Tx and Rx together */ \
181 * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
182 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats)
183 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats)
184 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats)
185 #ifdef I40E_FCOE
186 #define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats)
187 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
188 I40E_FCOE_STATS_LEN + \
189 I40E_MISC_STATS_LEN + \
190 I40E_QUEUE_STATS_LEN((n)))
191 #else
192 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \
193 I40E_MISC_STATS_LEN + \
194 I40E_QUEUE_STATS_LEN((n)))
195 #endif /* I40E_FCOE */
196 #define I40E_PFC_STATS_LEN ( \
197 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
198 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
199 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
200 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
201 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
202 / sizeof(u64))
203 #define I40E_VEB_TC_STATS_LEN ( \
204 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
205 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
206 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
207 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
208 / sizeof(u64))
209 #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats)
210 #define I40E_VEB_STATS_TOTAL (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
211 #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \
212 I40E_PFC_STATS_LEN + \
213 I40E_VSI_STATS_LEN((n)))
214
215 enum i40e_ethtool_test_id {
216 I40E_ETH_TEST_REG = 0,
217 I40E_ETH_TEST_EEPROM,
218 I40E_ETH_TEST_INTR,
219 I40E_ETH_TEST_LOOPBACK,
220 I40E_ETH_TEST_LINK,
221 };
222
223 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
224 "Register test (offline)",
225 "Eeprom test (offline)",
226 "Interrupt test (offline)",
227 "Loopback test (offline)",
228 "Link test (on/offline)"
229 };
230
231 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
232
233 static const char i40e_priv_flags_strings_gl[][ETH_GSTRING_LEN] = {
234 "MFP",
235 "LinkPolling",
236 "flow-director-atr",
237 "veb-stats",
238 "hw-atr-eviction",
239 "vf-true-promisc-support",
240 };
241
242 #define I40E_PRIV_FLAGS_GL_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings_gl)
243
244 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
245 "NPAR",
246 "LinkPolling",
247 "flow-director-atr",
248 "veb-stats",
249 "hw-atr-eviction",
250 };
251
252 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
253
254 /**
255 * i40e_partition_setting_complaint - generic complaint for MFP restriction
256 * @pf: the PF struct
257 **/
258 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
259 {
260 dev_info(&pf->pdev->dev,
261 "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");
262 }
263
264 /**
265 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
266 * @phy_types: PHY types to convert
267 * @supported: pointer to the ethtool supported variable to fill in
268 * @advertising: pointer to the ethtool advertising variable to fill in
269 *
270 **/
271 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
272 u32 *advertising)
273 {
274 enum i40e_aq_capabilities_phy_type phy_types = pf->hw.phy.phy_types;
275 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
276 *supported = 0x0;
277 *advertising = 0x0;
278
279 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
280 *supported |= SUPPORTED_Autoneg |
281 SUPPORTED_1000baseT_Full;
282 *advertising |= ADVERTISED_Autoneg;
283 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
284 *advertising |= ADVERTISED_1000baseT_Full;
285 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
286 *supported |= SUPPORTED_100baseT_Full;
287 *advertising |= ADVERTISED_100baseT_Full;
288 }
289 }
290 if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
291 phy_types & I40E_CAP_PHY_TYPE_XFI ||
292 phy_types & I40E_CAP_PHY_TYPE_SFI ||
293 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
294 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC)
295 *supported |= SUPPORTED_10000baseT_Full;
296 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
297 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
298 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
299 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
300 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
301 *supported |= SUPPORTED_Autoneg |
302 SUPPORTED_10000baseT_Full;
303 *advertising |= ADVERTISED_Autoneg;
304 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
305 *advertising |= ADVERTISED_10000baseT_Full;
306 }
307 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
308 phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
309 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
310 *supported |= SUPPORTED_40000baseCR4_Full;
311 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
312 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
313 *supported |= SUPPORTED_Autoneg |
314 SUPPORTED_40000baseCR4_Full;
315 *advertising |= ADVERTISED_Autoneg;
316 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
317 *advertising |= ADVERTISED_40000baseCR4_Full;
318 }
319 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
320 *supported |= SUPPORTED_Autoneg |
321 SUPPORTED_100baseT_Full;
322 *advertising |= ADVERTISED_Autoneg;
323 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
324 *advertising |= ADVERTISED_100baseT_Full;
325 }
326 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
327 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
328 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
329 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
330 *supported |= SUPPORTED_Autoneg |
331 SUPPORTED_1000baseT_Full;
332 *advertising |= ADVERTISED_Autoneg;
333 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
334 *advertising |= ADVERTISED_1000baseT_Full;
335 }
336 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
337 *supported |= SUPPORTED_40000baseSR4_Full;
338 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
339 *supported |= SUPPORTED_40000baseLR4_Full;
340 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
341 *supported |= SUPPORTED_40000baseKR4_Full |
342 SUPPORTED_Autoneg;
343 *advertising |= ADVERTISED_40000baseKR4_Full |
344 ADVERTISED_Autoneg;
345 }
346 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
347 *supported |= SUPPORTED_20000baseKR2_Full |
348 SUPPORTED_Autoneg;
349 *advertising |= ADVERTISED_Autoneg;
350 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
351 *advertising |= ADVERTISED_20000baseKR2_Full;
352 }
353 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
354 *supported |= SUPPORTED_10000baseKR_Full |
355 SUPPORTED_Autoneg;
356 *advertising |= ADVERTISED_Autoneg;
357 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
358 *advertising |= ADVERTISED_10000baseKR_Full;
359 }
360 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
361 *supported |= SUPPORTED_10000baseKX4_Full |
362 SUPPORTED_Autoneg;
363 *advertising |= ADVERTISED_Autoneg;
364 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
365 *advertising |= ADVERTISED_10000baseKX4_Full;
366 }
367 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
368 *supported |= SUPPORTED_1000baseKX_Full |
369 SUPPORTED_Autoneg;
370 *advertising |= ADVERTISED_Autoneg;
371 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
372 *advertising |= ADVERTISED_1000baseKX_Full;
373 }
374 }
375
376 /**
377 * i40e_get_settings_link_up - Get the Link settings for when link is up
378 * @hw: hw structure
379 * @ecmd: ethtool command to fill in
380 * @netdev: network interface device structure
381 *
382 **/
383 static void i40e_get_settings_link_up(struct i40e_hw *hw,
384 struct ethtool_cmd *ecmd,
385 struct net_device *netdev,
386 struct i40e_pf *pf)
387 {
388 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
389 u32 link_speed = hw_link_info->link_speed;
390 u32 e_advertising = 0x0;
391 u32 e_supported = 0x0;
392
393 /* Initialize supported and advertised settings based on phy settings */
394 switch (hw_link_info->phy_type) {
395 case I40E_PHY_TYPE_40GBASE_CR4:
396 case I40E_PHY_TYPE_40GBASE_CR4_CU:
397 ecmd->supported = SUPPORTED_Autoneg |
398 SUPPORTED_40000baseCR4_Full;
399 ecmd->advertising = ADVERTISED_Autoneg |
400 ADVERTISED_40000baseCR4_Full;
401 break;
402 case I40E_PHY_TYPE_XLAUI:
403 case I40E_PHY_TYPE_XLPPI:
404 case I40E_PHY_TYPE_40GBASE_AOC:
405 ecmd->supported = SUPPORTED_40000baseCR4_Full;
406 break;
407 case I40E_PHY_TYPE_40GBASE_SR4:
408 ecmd->supported = SUPPORTED_40000baseSR4_Full;
409 break;
410 case I40E_PHY_TYPE_40GBASE_LR4:
411 ecmd->supported = SUPPORTED_40000baseLR4_Full;
412 break;
413 case I40E_PHY_TYPE_10GBASE_SR:
414 case I40E_PHY_TYPE_10GBASE_LR:
415 case I40E_PHY_TYPE_1000BASE_SX:
416 case I40E_PHY_TYPE_1000BASE_LX:
417 ecmd->supported = SUPPORTED_10000baseT_Full;
418 if (hw_link_info->module_type[2] &
419 I40E_MODULE_TYPE_1000BASE_SX ||
420 hw_link_info->module_type[2] &
421 I40E_MODULE_TYPE_1000BASE_LX) {
422 ecmd->supported |= SUPPORTED_1000baseT_Full;
423 if (hw_link_info->requested_speeds &
424 I40E_LINK_SPEED_1GB)
425 ecmd->advertising |= ADVERTISED_1000baseT_Full;
426 }
427 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
428 ecmd->advertising |= ADVERTISED_10000baseT_Full;
429 break;
430 case I40E_PHY_TYPE_10GBASE_T:
431 case I40E_PHY_TYPE_1000BASE_T:
432 case I40E_PHY_TYPE_100BASE_TX:
433 ecmd->supported = SUPPORTED_Autoneg |
434 SUPPORTED_10000baseT_Full |
435 SUPPORTED_1000baseT_Full |
436 SUPPORTED_100baseT_Full;
437 ecmd->advertising = ADVERTISED_Autoneg;
438 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
439 ecmd->advertising |= ADVERTISED_10000baseT_Full;
440 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
441 ecmd->advertising |= ADVERTISED_1000baseT_Full;
442 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
443 ecmd->advertising |= ADVERTISED_100baseT_Full;
444 break;
445 case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
446 ecmd->supported = SUPPORTED_Autoneg |
447 SUPPORTED_1000baseT_Full;
448 ecmd->advertising = ADVERTISED_Autoneg |
449 ADVERTISED_1000baseT_Full;
450 break;
451 case I40E_PHY_TYPE_10GBASE_CR1_CU:
452 case I40E_PHY_TYPE_10GBASE_CR1:
453 ecmd->supported = SUPPORTED_Autoneg |
454 SUPPORTED_10000baseT_Full;
455 ecmd->advertising = ADVERTISED_Autoneg |
456 ADVERTISED_10000baseT_Full;
457 break;
458 case I40E_PHY_TYPE_XAUI:
459 case I40E_PHY_TYPE_XFI:
460 case I40E_PHY_TYPE_SFI:
461 case I40E_PHY_TYPE_10GBASE_SFPP_CU:
462 case I40E_PHY_TYPE_10GBASE_AOC:
463 ecmd->supported = SUPPORTED_10000baseT_Full;
464 ecmd->advertising = SUPPORTED_10000baseT_Full;
465 break;
466 case I40E_PHY_TYPE_SGMII:
467 ecmd->supported = SUPPORTED_Autoneg |
468 SUPPORTED_1000baseT_Full;
469 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
470 ecmd->advertising |= ADVERTISED_1000baseT_Full;
471 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
472 ecmd->supported |= SUPPORTED_100baseT_Full;
473 if (hw_link_info->requested_speeds &
474 I40E_LINK_SPEED_100MB)
475 ecmd->advertising |= ADVERTISED_100baseT_Full;
476 }
477 break;
478 case I40E_PHY_TYPE_40GBASE_KR4:
479 case I40E_PHY_TYPE_20GBASE_KR2:
480 case I40E_PHY_TYPE_10GBASE_KR:
481 case I40E_PHY_TYPE_10GBASE_KX4:
482 case I40E_PHY_TYPE_1000BASE_KX:
483 ecmd->supported |= SUPPORTED_40000baseKR4_Full |
484 SUPPORTED_20000baseKR2_Full |
485 SUPPORTED_10000baseKR_Full |
486 SUPPORTED_10000baseKX4_Full |
487 SUPPORTED_1000baseKX_Full |
488 SUPPORTED_Autoneg;
489 ecmd->advertising |= ADVERTISED_40000baseKR4_Full |
490 ADVERTISED_20000baseKR2_Full |
491 ADVERTISED_10000baseKR_Full |
492 ADVERTISED_10000baseKX4_Full |
493 ADVERTISED_1000baseKX_Full |
494 ADVERTISED_Autoneg;
495 break;
496 default:
497 /* if we got here and link is up something bad is afoot */
498 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
499 hw_link_info->phy_type);
500 }
501
502 /* Now that we've worked out everything that could be supported by the
503 * current PHY type, get what is supported by the NVM and them to
504 * get what is truly supported
505 */
506 i40e_phy_type_to_ethtool(pf, &e_supported,
507 &e_advertising);
508
509 ecmd->supported = ecmd->supported & e_supported;
510 ecmd->advertising = ecmd->advertising & e_advertising;
511
512 /* Set speed and duplex */
513 switch (link_speed) {
514 case I40E_LINK_SPEED_40GB:
515 ethtool_cmd_speed_set(ecmd, SPEED_40000);
516 break;
517 case I40E_LINK_SPEED_20GB:
518 ethtool_cmd_speed_set(ecmd, SPEED_20000);
519 break;
520 case I40E_LINK_SPEED_10GB:
521 ethtool_cmd_speed_set(ecmd, SPEED_10000);
522 break;
523 case I40E_LINK_SPEED_1GB:
524 ethtool_cmd_speed_set(ecmd, SPEED_1000);
525 break;
526 case I40E_LINK_SPEED_100MB:
527 ethtool_cmd_speed_set(ecmd, SPEED_100);
528 break;
529 default:
530 break;
531 }
532 ecmd->duplex = DUPLEX_FULL;
533 }
534
535 /**
536 * i40e_get_settings_link_down - Get the Link settings for when link is down
537 * @hw: hw structure
538 * @ecmd: ethtool command to fill in
539 *
540 * Reports link settings that can be determined when link is down
541 **/
542 static void i40e_get_settings_link_down(struct i40e_hw *hw,
543 struct ethtool_cmd *ecmd,
544 struct i40e_pf *pf)
545 {
546 /* link is down and the driver needs to fall back on
547 * supported phy types to figure out what info to display
548 */
549 i40e_phy_type_to_ethtool(pf, &ecmd->supported,
550 &ecmd->advertising);
551
552 /* With no link speed and duplex are unknown */
553 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
554 ecmd->duplex = DUPLEX_UNKNOWN;
555 }
556
557 /**
558 * i40e_get_settings - Get Link Speed and Duplex settings
559 * @netdev: network interface device structure
560 * @ecmd: ethtool command
561 *
562 * Reports speed/duplex settings based on media_type
563 **/
564 static int i40e_get_settings(struct net_device *netdev,
565 struct ethtool_cmd *ecmd)
566 {
567 struct i40e_netdev_priv *np = netdev_priv(netdev);
568 struct i40e_pf *pf = np->vsi->back;
569 struct i40e_hw *hw = &pf->hw;
570 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
571 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
572
573 if (link_up)
574 i40e_get_settings_link_up(hw, ecmd, netdev, pf);
575 else
576 i40e_get_settings_link_down(hw, ecmd, pf);
577
578 /* Now set the settings that don't rely on link being up/down */
579 /* Set autoneg settings */
580 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
581 AUTONEG_ENABLE : AUTONEG_DISABLE);
582
583 switch (hw->phy.media_type) {
584 case I40E_MEDIA_TYPE_BACKPLANE:
585 ecmd->supported |= SUPPORTED_Autoneg |
586 SUPPORTED_Backplane;
587 ecmd->advertising |= ADVERTISED_Autoneg |
588 ADVERTISED_Backplane;
589 ecmd->port = PORT_NONE;
590 break;
591 case I40E_MEDIA_TYPE_BASET:
592 ecmd->supported |= SUPPORTED_TP;
593 ecmd->advertising |= ADVERTISED_TP;
594 ecmd->port = PORT_TP;
595 break;
596 case I40E_MEDIA_TYPE_DA:
597 case I40E_MEDIA_TYPE_CX4:
598 ecmd->supported |= SUPPORTED_FIBRE;
599 ecmd->advertising |= ADVERTISED_FIBRE;
600 ecmd->port = PORT_DA;
601 break;
602 case I40E_MEDIA_TYPE_FIBER:
603 ecmd->supported |= SUPPORTED_FIBRE;
604 ecmd->port = PORT_FIBRE;
605 break;
606 case I40E_MEDIA_TYPE_UNKNOWN:
607 default:
608 ecmd->port = PORT_OTHER;
609 break;
610 }
611
612 /* Set transceiver */
613 ecmd->transceiver = XCVR_EXTERNAL;
614
615 /* Set flow control settings */
616 ecmd->supported |= SUPPORTED_Pause;
617
618 switch (hw->fc.requested_mode) {
619 case I40E_FC_FULL:
620 ecmd->advertising |= ADVERTISED_Pause;
621 break;
622 case I40E_FC_TX_PAUSE:
623 ecmd->advertising |= ADVERTISED_Asym_Pause;
624 break;
625 case I40E_FC_RX_PAUSE:
626 ecmd->advertising |= (ADVERTISED_Pause |
627 ADVERTISED_Asym_Pause);
628 break;
629 default:
630 ecmd->advertising &= ~(ADVERTISED_Pause |
631 ADVERTISED_Asym_Pause);
632 break;
633 }
634
635 return 0;
636 }
637
638 /**
639 * i40e_set_settings - Set Speed and Duplex
640 * @netdev: network interface device structure
641 * @ecmd: ethtool command
642 *
643 * Set speed/duplex per media_types advertised/forced
644 **/
645 static int i40e_set_settings(struct net_device *netdev,
646 struct ethtool_cmd *ecmd)
647 {
648 struct i40e_netdev_priv *np = netdev_priv(netdev);
649 struct i40e_aq_get_phy_abilities_resp abilities;
650 struct i40e_aq_set_phy_config config;
651 struct i40e_pf *pf = np->vsi->back;
652 struct i40e_vsi *vsi = np->vsi;
653 struct i40e_hw *hw = &pf->hw;
654 struct ethtool_cmd safe_ecmd;
655 i40e_status status = 0;
656 bool change = false;
657 int err = 0;
658 u8 autoneg;
659 u32 advertise;
660
661 /* Changing port settings is not supported if this isn't the
662 * port's controlling PF
663 */
664 if (hw->partition_id != 1) {
665 i40e_partition_setting_complaint(pf);
666 return -EOPNOTSUPP;
667 }
668
669 if (vsi != pf->vsi[pf->lan_vsi])
670 return -EOPNOTSUPP;
671
672 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
673 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
674 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
675 hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
676 hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
677 return -EOPNOTSUPP;
678
679 if (hw->device_id == I40E_DEV_ID_KX_B ||
680 hw->device_id == I40E_DEV_ID_KX_C ||
681 hw->device_id == I40E_DEV_ID_20G_KR2 ||
682 hw->device_id == I40E_DEV_ID_20G_KR2_A) {
683 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
684 return -EOPNOTSUPP;
685 }
686
687 /* get our own copy of the bits to check against */
688 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
689 i40e_get_settings(netdev, &safe_ecmd);
690
691 /* save autoneg and speed out of ecmd */
692 autoneg = ecmd->autoneg;
693 advertise = ecmd->advertising;
694
695 /* set autoneg and speed back to what they currently are */
696 ecmd->autoneg = safe_ecmd.autoneg;
697 ecmd->advertising = safe_ecmd.advertising;
698
699 ecmd->cmd = safe_ecmd.cmd;
700 /* If ecmd and safe_ecmd are not the same now, then they are
701 * trying to set something that we do not support
702 */
703 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
704 return -EOPNOTSUPP;
705
706 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
707 usleep_range(1000, 2000);
708
709 /* Get the current phy config */
710 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
711 NULL);
712 if (status)
713 return -EAGAIN;
714
715 /* Copy abilities to config in case autoneg is not
716 * set below
717 */
718 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
719 config.abilities = abilities.abilities;
720
721 /* Check autoneg */
722 if (autoneg == AUTONEG_ENABLE) {
723 /* If autoneg was not already enabled */
724 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
725 /* If autoneg is not supported, return error */
726 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
727 netdev_info(netdev, "Autoneg not supported on this phy\n");
728 return -EINVAL;
729 }
730 /* Autoneg is allowed to change */
731 config.abilities = abilities.abilities |
732 I40E_AQ_PHY_ENABLE_AN;
733 change = true;
734 }
735 } else {
736 /* If autoneg is currently enabled */
737 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
738 /* If autoneg is supported 10GBASE_T is the only PHY
739 * that can disable it, so otherwise return error
740 */
741 if (safe_ecmd.supported & SUPPORTED_Autoneg &&
742 hw->phy.link_info.phy_type !=
743 I40E_PHY_TYPE_10GBASE_T) {
744 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
745 return -EINVAL;
746 }
747 /* Autoneg is allowed to change */
748 config.abilities = abilities.abilities &
749 ~I40E_AQ_PHY_ENABLE_AN;
750 change = true;
751 }
752 }
753
754 if (advertise & ~safe_ecmd.supported)
755 return -EINVAL;
756
757 if (advertise & ADVERTISED_100baseT_Full)
758 config.link_speed |= I40E_LINK_SPEED_100MB;
759 if (advertise & ADVERTISED_1000baseT_Full ||
760 advertise & ADVERTISED_1000baseKX_Full)
761 config.link_speed |= I40E_LINK_SPEED_1GB;
762 if (advertise & ADVERTISED_10000baseT_Full ||
763 advertise & ADVERTISED_10000baseKX4_Full ||
764 advertise & ADVERTISED_10000baseKR_Full)
765 config.link_speed |= I40E_LINK_SPEED_10GB;
766 if (advertise & ADVERTISED_20000baseKR2_Full)
767 config.link_speed |= I40E_LINK_SPEED_20GB;
768 if (advertise & ADVERTISED_40000baseKR4_Full ||
769 advertise & ADVERTISED_40000baseCR4_Full ||
770 advertise & ADVERTISED_40000baseSR4_Full ||
771 advertise & ADVERTISED_40000baseLR4_Full)
772 config.link_speed |= I40E_LINK_SPEED_40GB;
773
774 /* If speed didn't get set, set it to what it currently is.
775 * This is needed because if advertise is 0 (as it is when autoneg
776 * is disabled) then speed won't get set.
777 */
778 if (!config.link_speed)
779 config.link_speed = abilities.link_speed;
780
781 if (change || (abilities.link_speed != config.link_speed)) {
782 /* copy over the rest of the abilities */
783 config.phy_type = abilities.phy_type;
784 config.eee_capability = abilities.eee_capability;
785 config.eeer = abilities.eeer_val;
786 config.low_power_ctrl = abilities.d3_lpan;
787
788 /* save the requested speeds */
789 hw->phy.link_info.requested_speeds = config.link_speed;
790 /* set link and auto negotiation so changes take effect */
791 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
792 /* If link is up put link down */
793 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
794 /* Tell the OS link is going down, the link will go
795 * back up when fw says it is ready asynchronously
796 */
797 i40e_print_link_message(vsi, false);
798 netif_carrier_off(netdev);
799 netif_tx_stop_all_queues(netdev);
800 }
801
802 /* make the aq call */
803 status = i40e_aq_set_phy_config(hw, &config, NULL);
804 if (status) {
805 netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
806 i40e_stat_str(hw, status),
807 i40e_aq_str(hw, hw->aq.asq_last_status));
808 return -EAGAIN;
809 }
810
811 status = i40e_update_link_info(hw);
812 if (status)
813 netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n",
814 i40e_stat_str(hw, status),
815 i40e_aq_str(hw, hw->aq.asq_last_status));
816
817 } else {
818 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
819 }
820
821 return err;
822 }
823
824 static int i40e_nway_reset(struct net_device *netdev)
825 {
826 /* restart autonegotiation */
827 struct i40e_netdev_priv *np = netdev_priv(netdev);
828 struct i40e_pf *pf = np->vsi->back;
829 struct i40e_hw *hw = &pf->hw;
830 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
831 i40e_status ret = 0;
832
833 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
834 if (ret) {
835 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
836 i40e_stat_str(hw, ret),
837 i40e_aq_str(hw, hw->aq.asq_last_status));
838 return -EIO;
839 }
840
841 return 0;
842 }
843
844 /**
845 * i40e_get_pauseparam - Get Flow Control status
846 * Return tx/rx-pause status
847 **/
848 static void i40e_get_pauseparam(struct net_device *netdev,
849 struct ethtool_pauseparam *pause)
850 {
851 struct i40e_netdev_priv *np = netdev_priv(netdev);
852 struct i40e_pf *pf = np->vsi->back;
853 struct i40e_hw *hw = &pf->hw;
854 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
855 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
856
857 pause->autoneg =
858 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
859 AUTONEG_ENABLE : AUTONEG_DISABLE);
860
861 /* PFC enabled so report LFC as off */
862 if (dcbx_cfg->pfc.pfcenable) {
863 pause->rx_pause = 0;
864 pause->tx_pause = 0;
865 return;
866 }
867
868 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
869 pause->rx_pause = 1;
870 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
871 pause->tx_pause = 1;
872 } else if (hw->fc.current_mode == I40E_FC_FULL) {
873 pause->rx_pause = 1;
874 pause->tx_pause = 1;
875 }
876 }
877
878 /**
879 * i40e_set_pauseparam - Set Flow Control parameter
880 * @netdev: network interface device structure
881 * @pause: return tx/rx flow control status
882 **/
883 static int i40e_set_pauseparam(struct net_device *netdev,
884 struct ethtool_pauseparam *pause)
885 {
886 struct i40e_netdev_priv *np = netdev_priv(netdev);
887 struct i40e_pf *pf = np->vsi->back;
888 struct i40e_vsi *vsi = np->vsi;
889 struct i40e_hw *hw = &pf->hw;
890 struct i40e_link_status *hw_link_info = &hw->phy.link_info;
891 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
892 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
893 i40e_status status;
894 u8 aq_failures;
895 int err = 0;
896
897 /* Changing the port's flow control is not supported if this isn't the
898 * port's controlling PF
899 */
900 if (hw->partition_id != 1) {
901 i40e_partition_setting_complaint(pf);
902 return -EOPNOTSUPP;
903 }
904
905 if (vsi != pf->vsi[pf->lan_vsi])
906 return -EOPNOTSUPP;
907
908 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
909 AUTONEG_ENABLE : AUTONEG_DISABLE)) {
910 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
911 return -EOPNOTSUPP;
912 }
913
914 /* If we have link and don't have autoneg */
915 if (!test_bit(__I40E_DOWN, &pf->state) &&
916 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
917 /* Send message that it might not necessarily work*/
918 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
919 }
920
921 if (dcbx_cfg->pfc.pfcenable) {
922 netdev_info(netdev,
923 "Priority flow control enabled. Cannot set link flow control.\n");
924 return -EOPNOTSUPP;
925 }
926
927 if (pause->rx_pause && pause->tx_pause)
928 hw->fc.requested_mode = I40E_FC_FULL;
929 else if (pause->rx_pause && !pause->tx_pause)
930 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
931 else if (!pause->rx_pause && pause->tx_pause)
932 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
933 else if (!pause->rx_pause && !pause->tx_pause)
934 hw->fc.requested_mode = I40E_FC_NONE;
935 else
936 return -EINVAL;
937
938 /* Tell the OS link is going down, the link will go back up when fw
939 * says it is ready asynchronously
940 */
941 i40e_print_link_message(vsi, false);
942 netif_carrier_off(netdev);
943 netif_tx_stop_all_queues(netdev);
944
945 /* Set the fc mode and only restart an if link is up*/
946 status = i40e_set_fc(hw, &aq_failures, link_up);
947
948 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
949 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
950 i40e_stat_str(hw, status),
951 i40e_aq_str(hw, hw->aq.asq_last_status));
952 err = -EAGAIN;
953 }
954 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
955 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
956 i40e_stat_str(hw, status),
957 i40e_aq_str(hw, hw->aq.asq_last_status));
958 err = -EAGAIN;
959 }
960 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
961 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
962 i40e_stat_str(hw, status),
963 i40e_aq_str(hw, hw->aq.asq_last_status));
964 err = -EAGAIN;
965 }
966
967 if (!test_bit(__I40E_DOWN, &pf->state)) {
968 /* Give it a little more time to try to come back */
969 msleep(75);
970 if (!test_bit(__I40E_DOWN, &pf->state))
971 return i40e_nway_reset(netdev);
972 }
973
974 return err;
975 }
976
977 static u32 i40e_get_msglevel(struct net_device *netdev)
978 {
979 struct i40e_netdev_priv *np = netdev_priv(netdev);
980 struct i40e_pf *pf = np->vsi->back;
981
982 return pf->msg_enable;
983 }
984
985 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
986 {
987 struct i40e_netdev_priv *np = netdev_priv(netdev);
988 struct i40e_pf *pf = np->vsi->back;
989
990 if (I40E_DEBUG_USER & data)
991 pf->hw.debug_mask = data;
992 pf->msg_enable = data;
993 }
994
995 static int i40e_get_regs_len(struct net_device *netdev)
996 {
997 int reg_count = 0;
998 int i;
999
1000 for (i = 0; i40e_reg_list[i].offset != 0; i++)
1001 reg_count += i40e_reg_list[i].elements;
1002
1003 return reg_count * sizeof(u32);
1004 }
1005
1006 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1007 void *p)
1008 {
1009 struct i40e_netdev_priv *np = netdev_priv(netdev);
1010 struct i40e_pf *pf = np->vsi->back;
1011 struct i40e_hw *hw = &pf->hw;
1012 u32 *reg_buf = p;
1013 int i, j, ri;
1014 u32 reg;
1015
1016 /* Tell ethtool which driver-version-specific regs output we have.
1017 *
1018 * At some point, if we have ethtool doing special formatting of
1019 * this data, it will rely on this version number to know how to
1020 * interpret things. Hence, this needs to be updated if/when the
1021 * diags register table is changed.
1022 */
1023 regs->version = 1;
1024
1025 /* loop through the diags reg table for what to print */
1026 ri = 0;
1027 for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1028 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1029 reg = i40e_reg_list[i].offset
1030 + (j * i40e_reg_list[i].stride);
1031 reg_buf[ri++] = rd32(hw, reg);
1032 }
1033 }
1034
1035 }
1036
1037 static int i40e_get_eeprom(struct net_device *netdev,
1038 struct ethtool_eeprom *eeprom, u8 *bytes)
1039 {
1040 struct i40e_netdev_priv *np = netdev_priv(netdev);
1041 struct i40e_hw *hw = &np->vsi->back->hw;
1042 struct i40e_pf *pf = np->vsi->back;
1043 int ret_val = 0, len, offset;
1044 u8 *eeprom_buff;
1045 u16 i, sectors;
1046 bool last;
1047 u32 magic;
1048
1049 #define I40E_NVM_SECTOR_SIZE 4096
1050 if (eeprom->len == 0)
1051 return -EINVAL;
1052
1053 /* check for NVMUpdate access method */
1054 magic = hw->vendor_id | (hw->device_id << 16);
1055 if (eeprom->magic && eeprom->magic != magic) {
1056 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1057 int errno = 0;
1058
1059 /* make sure it is the right magic for NVMUpdate */
1060 if ((eeprom->magic >> 16) != hw->device_id)
1061 errno = -EINVAL;
1062 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1063 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1064 errno = -EBUSY;
1065 else
1066 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1067
1068 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1069 dev_info(&pf->pdev->dev,
1070 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1071 ret_val, hw->aq.asq_last_status, errno,
1072 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1073 cmd->offset, cmd->data_size);
1074
1075 return errno;
1076 }
1077
1078 /* normal ethtool get_eeprom support */
1079 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1080
1081 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1082 if (!eeprom_buff)
1083 return -ENOMEM;
1084
1085 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1086 if (ret_val) {
1087 dev_info(&pf->pdev->dev,
1088 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1089 ret_val, hw->aq.asq_last_status);
1090 goto free_buff;
1091 }
1092
1093 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1094 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1095 len = I40E_NVM_SECTOR_SIZE;
1096 last = false;
1097 for (i = 0; i < sectors; i++) {
1098 if (i == (sectors - 1)) {
1099 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1100 last = true;
1101 }
1102 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1103 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1104 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1105 last, NULL);
1106 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1107 dev_info(&pf->pdev->dev,
1108 "read NVM failed, invalid offset 0x%x\n",
1109 offset);
1110 break;
1111 } else if (ret_val &&
1112 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1113 dev_info(&pf->pdev->dev,
1114 "read NVM failed, access, offset 0x%x\n",
1115 offset);
1116 break;
1117 } else if (ret_val) {
1118 dev_info(&pf->pdev->dev,
1119 "read NVM failed offset %d err=%d status=0x%x\n",
1120 offset, ret_val, hw->aq.asq_last_status);
1121 break;
1122 }
1123 }
1124
1125 i40e_release_nvm(hw);
1126 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1127 free_buff:
1128 kfree(eeprom_buff);
1129 return ret_val;
1130 }
1131
1132 static int i40e_get_eeprom_len(struct net_device *netdev)
1133 {
1134 struct i40e_netdev_priv *np = netdev_priv(netdev);
1135 struct i40e_hw *hw = &np->vsi->back->hw;
1136 u32 val;
1137
1138 val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1139 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1140 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1141 /* register returns value in power of 2, 64Kbyte chunks. */
1142 val = (64 * 1024) * BIT(val);
1143 return val;
1144 }
1145
1146 static int i40e_set_eeprom(struct net_device *netdev,
1147 struct ethtool_eeprom *eeprom, u8 *bytes)
1148 {
1149 struct i40e_netdev_priv *np = netdev_priv(netdev);
1150 struct i40e_hw *hw = &np->vsi->back->hw;
1151 struct i40e_pf *pf = np->vsi->back;
1152 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1153 int ret_val = 0;
1154 int errno = 0;
1155 u32 magic;
1156
1157 /* normal ethtool set_eeprom is not supported */
1158 magic = hw->vendor_id | (hw->device_id << 16);
1159 if (eeprom->magic == magic)
1160 errno = -EOPNOTSUPP;
1161 /* check for NVMUpdate access method */
1162 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1163 errno = -EINVAL;
1164 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1165 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1166 errno = -EBUSY;
1167 else
1168 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1169
1170 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1171 dev_info(&pf->pdev->dev,
1172 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1173 ret_val, hw->aq.asq_last_status, errno,
1174 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1175 cmd->offset, cmd->data_size);
1176
1177 return errno;
1178 }
1179
1180 static void i40e_get_drvinfo(struct net_device *netdev,
1181 struct ethtool_drvinfo *drvinfo)
1182 {
1183 struct i40e_netdev_priv *np = netdev_priv(netdev);
1184 struct i40e_vsi *vsi = np->vsi;
1185 struct i40e_pf *pf = vsi->back;
1186
1187 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1188 strlcpy(drvinfo->version, i40e_driver_version_str,
1189 sizeof(drvinfo->version));
1190 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1191 sizeof(drvinfo->fw_version));
1192 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1193 sizeof(drvinfo->bus_info));
1194 if (pf->hw.pf_id == 0)
1195 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_GL_STR_LEN;
1196 else
1197 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1198 }
1199
1200 static void i40e_get_ringparam(struct net_device *netdev,
1201 struct ethtool_ringparam *ring)
1202 {
1203 struct i40e_netdev_priv *np = netdev_priv(netdev);
1204 struct i40e_pf *pf = np->vsi->back;
1205 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1206
1207 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1208 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1209 ring->rx_mini_max_pending = 0;
1210 ring->rx_jumbo_max_pending = 0;
1211 ring->rx_pending = vsi->rx_rings[0]->count;
1212 ring->tx_pending = vsi->tx_rings[0]->count;
1213 ring->rx_mini_pending = 0;
1214 ring->rx_jumbo_pending = 0;
1215 }
1216
1217 static int i40e_set_ringparam(struct net_device *netdev,
1218 struct ethtool_ringparam *ring)
1219 {
1220 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1221 struct i40e_netdev_priv *np = netdev_priv(netdev);
1222 struct i40e_vsi *vsi = np->vsi;
1223 struct i40e_pf *pf = vsi->back;
1224 u32 new_rx_count, new_tx_count;
1225 int i, err = 0;
1226
1227 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1228 return -EINVAL;
1229
1230 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1231 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1232 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1233 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1234 netdev_info(netdev,
1235 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1236 ring->tx_pending, ring->rx_pending,
1237 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1238 return -EINVAL;
1239 }
1240
1241 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1242 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1243
1244 /* if nothing to do return success */
1245 if ((new_tx_count == vsi->tx_rings[0]->count) &&
1246 (new_rx_count == vsi->rx_rings[0]->count))
1247 return 0;
1248
1249 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1250 usleep_range(1000, 2000);
1251
1252 if (!netif_running(vsi->netdev)) {
1253 /* simple case - set for the next time the netdev is started */
1254 for (i = 0; i < vsi->num_queue_pairs; i++) {
1255 vsi->tx_rings[i]->count = new_tx_count;
1256 vsi->rx_rings[i]->count = new_rx_count;
1257 }
1258 goto done;
1259 }
1260
1261 /* We can't just free everything and then setup again,
1262 * because the ISRs in MSI-X mode get passed pointers
1263 * to the Tx and Rx ring structs.
1264 */
1265
1266 /* alloc updated Tx resources */
1267 if (new_tx_count != vsi->tx_rings[0]->count) {
1268 netdev_info(netdev,
1269 "Changing Tx descriptor count from %d to %d.\n",
1270 vsi->tx_rings[0]->count, new_tx_count);
1271 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1272 sizeof(struct i40e_ring), GFP_KERNEL);
1273 if (!tx_rings) {
1274 err = -ENOMEM;
1275 goto done;
1276 }
1277
1278 for (i = 0; i < vsi->num_queue_pairs; i++) {
1279 /* clone ring and setup updated count */
1280 tx_rings[i] = *vsi->tx_rings[i];
1281 tx_rings[i].count = new_tx_count;
1282 /* the desc and bi pointers will be reallocated in the
1283 * setup call
1284 */
1285 tx_rings[i].desc = NULL;
1286 tx_rings[i].rx_bi = NULL;
1287 err = i40e_setup_tx_descriptors(&tx_rings[i]);
1288 if (err) {
1289 while (i) {
1290 i--;
1291 i40e_free_tx_resources(&tx_rings[i]);
1292 }
1293 kfree(tx_rings);
1294 tx_rings = NULL;
1295
1296 goto done;
1297 }
1298 }
1299 }
1300
1301 /* alloc updated Rx resources */
1302 if (new_rx_count != vsi->rx_rings[0]->count) {
1303 netdev_info(netdev,
1304 "Changing Rx descriptor count from %d to %d\n",
1305 vsi->rx_rings[0]->count, new_rx_count);
1306 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1307 sizeof(struct i40e_ring), GFP_KERNEL);
1308 if (!rx_rings) {
1309 err = -ENOMEM;
1310 goto free_tx;
1311 }
1312
1313 for (i = 0; i < vsi->num_queue_pairs; i++) {
1314 /* this is to allow wr32 to have something to write to
1315 * during early allocation of Rx buffers
1316 */
1317 u32 __iomem faketail = 0;
1318 struct i40e_ring *ring;
1319 u16 unused;
1320
1321 /* clone ring and setup updated count */
1322 rx_rings[i] = *vsi->rx_rings[i];
1323 rx_rings[i].count = new_rx_count;
1324 /* the desc and bi pointers will be reallocated in the
1325 * setup call
1326 */
1327 rx_rings[i].desc = NULL;
1328 rx_rings[i].rx_bi = NULL;
1329 rx_rings[i].tail = (u8 __iomem *)&faketail;
1330 err = i40e_setup_rx_descriptors(&rx_rings[i]);
1331 if (err)
1332 goto rx_unwind;
1333
1334 /* now allocate the Rx buffers to make sure the OS
1335 * has enough memory, any failure here means abort
1336 */
1337 ring = &rx_rings[i];
1338 unused = I40E_DESC_UNUSED(ring);
1339 err = i40e_alloc_rx_buffers(ring, unused);
1340 rx_unwind:
1341 if (err) {
1342 do {
1343 i40e_free_rx_resources(&rx_rings[i]);
1344 } while (i--);
1345 kfree(rx_rings);
1346 rx_rings = NULL;
1347
1348 goto free_tx;
1349 }
1350 }
1351 }
1352
1353 /* Bring interface down, copy in the new ring info,
1354 * then restore the interface
1355 */
1356 i40e_down(vsi);
1357
1358 if (tx_rings) {
1359 for (i = 0; i < vsi->num_queue_pairs; i++) {
1360 i40e_free_tx_resources(vsi->tx_rings[i]);
1361 *vsi->tx_rings[i] = tx_rings[i];
1362 }
1363 kfree(tx_rings);
1364 tx_rings = NULL;
1365 }
1366
1367 if (rx_rings) {
1368 for (i = 0; i < vsi->num_queue_pairs; i++) {
1369 i40e_free_rx_resources(vsi->rx_rings[i]);
1370 /* get the real tail offset */
1371 rx_rings[i].tail = vsi->rx_rings[i]->tail;
1372 /* this is to fake out the allocation routine
1373 * into thinking it has to realloc everything
1374 * but the recycling logic will let us re-use
1375 * the buffers allocated above
1376 */
1377 rx_rings[i].next_to_use = 0;
1378 rx_rings[i].next_to_clean = 0;
1379 rx_rings[i].next_to_alloc = 0;
1380 /* do a struct copy */
1381 *vsi->rx_rings[i] = rx_rings[i];
1382 }
1383 kfree(rx_rings);
1384 rx_rings = NULL;
1385 }
1386
1387 i40e_up(vsi);
1388
1389 free_tx:
1390 /* error cleanup if the Rx allocations failed after getting Tx */
1391 if (tx_rings) {
1392 for (i = 0; i < vsi->num_queue_pairs; i++)
1393 i40e_free_tx_resources(&tx_rings[i]);
1394 kfree(tx_rings);
1395 tx_rings = NULL;
1396 }
1397
1398 done:
1399 clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1400
1401 return err;
1402 }
1403
1404 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1405 {
1406 struct i40e_netdev_priv *np = netdev_priv(netdev);
1407 struct i40e_vsi *vsi = np->vsi;
1408 struct i40e_pf *pf = vsi->back;
1409
1410 switch (sset) {
1411 case ETH_SS_TEST:
1412 return I40E_TEST_LEN;
1413 case ETH_SS_STATS:
1414 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1415 int len = I40E_PF_STATS_LEN(netdev);
1416
1417 if ((pf->lan_veb != I40E_NO_VEB) &&
1418 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1419 len += I40E_VEB_STATS_TOTAL;
1420 return len;
1421 } else {
1422 return I40E_VSI_STATS_LEN(netdev);
1423 }
1424 case ETH_SS_PRIV_FLAGS:
1425 if (pf->hw.pf_id == 0)
1426 return I40E_PRIV_FLAGS_GL_STR_LEN;
1427 else
1428 return I40E_PRIV_FLAGS_STR_LEN;
1429 default:
1430 return -EOPNOTSUPP;
1431 }
1432 }
1433
1434 static void i40e_get_ethtool_stats(struct net_device *netdev,
1435 struct ethtool_stats *stats, u64 *data)
1436 {
1437 struct i40e_netdev_priv *np = netdev_priv(netdev);
1438 struct i40e_ring *tx_ring, *rx_ring;
1439 struct i40e_vsi *vsi = np->vsi;
1440 struct i40e_pf *pf = vsi->back;
1441 int i = 0;
1442 char *p;
1443 int j;
1444 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1445 unsigned int start;
1446
1447 i40e_update_stats(vsi);
1448
1449 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1450 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1451 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1452 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1453 }
1454 for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1455 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1456 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1457 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1458 }
1459 #ifdef I40E_FCOE
1460 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1461 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1462 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1463 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1464 }
1465 #endif
1466 rcu_read_lock();
1467 for (j = 0; j < vsi->num_queue_pairs; j++) {
1468 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1469
1470 if (!tx_ring)
1471 continue;
1472
1473 /* process Tx ring statistics */
1474 do {
1475 start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1476 data[i] = tx_ring->stats.packets;
1477 data[i + 1] = tx_ring->stats.bytes;
1478 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1479 i += 2;
1480
1481 /* Rx ring is the 2nd half of the queue pair */
1482 rx_ring = &tx_ring[1];
1483 do {
1484 start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1485 data[i] = rx_ring->stats.packets;
1486 data[i + 1] = rx_ring->stats.bytes;
1487 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1488 i += 2;
1489 }
1490 rcu_read_unlock();
1491 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1492 return;
1493
1494 if ((pf->lan_veb != I40E_NO_VEB) &&
1495 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1496 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1497
1498 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1499 p = (char *)veb;
1500 p += i40e_gstrings_veb_stats[j].stat_offset;
1501 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1502 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1503 }
1504 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1505 data[i++] = veb->tc_stats.tc_tx_packets[j];
1506 data[i++] = veb->tc_stats.tc_tx_bytes[j];
1507 data[i++] = veb->tc_stats.tc_rx_packets[j];
1508 data[i++] = veb->tc_stats.tc_rx_bytes[j];
1509 }
1510 }
1511 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1512 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1513 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1514 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1515 }
1516 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1517 data[i++] = pf->stats.priority_xon_tx[j];
1518 data[i++] = pf->stats.priority_xoff_tx[j];
1519 }
1520 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1521 data[i++] = pf->stats.priority_xon_rx[j];
1522 data[i++] = pf->stats.priority_xoff_rx[j];
1523 }
1524 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1525 data[i++] = pf->stats.priority_xon_2_xoff[j];
1526 }
1527
1528 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1529 u8 *data)
1530 {
1531 struct i40e_netdev_priv *np = netdev_priv(netdev);
1532 struct i40e_vsi *vsi = np->vsi;
1533 struct i40e_pf *pf = vsi->back;
1534 char *p = (char *)data;
1535 int i;
1536
1537 switch (stringset) {
1538 case ETH_SS_TEST:
1539 for (i = 0; i < I40E_TEST_LEN; i++) {
1540 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1541 data += ETH_GSTRING_LEN;
1542 }
1543 break;
1544 case ETH_SS_STATS:
1545 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1546 snprintf(p, ETH_GSTRING_LEN, "%s",
1547 i40e_gstrings_net_stats[i].stat_string);
1548 p += ETH_GSTRING_LEN;
1549 }
1550 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1551 snprintf(p, ETH_GSTRING_LEN, "%s",
1552 i40e_gstrings_misc_stats[i].stat_string);
1553 p += ETH_GSTRING_LEN;
1554 }
1555 #ifdef I40E_FCOE
1556 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1557 snprintf(p, ETH_GSTRING_LEN, "%s",
1558 i40e_gstrings_fcoe_stats[i].stat_string);
1559 p += ETH_GSTRING_LEN;
1560 }
1561 #endif
1562 for (i = 0; i < vsi->num_queue_pairs; i++) {
1563 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1564 p += ETH_GSTRING_LEN;
1565 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1566 p += ETH_GSTRING_LEN;
1567 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1568 p += ETH_GSTRING_LEN;
1569 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1570 p += ETH_GSTRING_LEN;
1571 }
1572 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1573 return;
1574
1575 if ((pf->lan_veb != I40E_NO_VEB) &&
1576 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1577 for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1578 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1579 i40e_gstrings_veb_stats[i].stat_string);
1580 p += ETH_GSTRING_LEN;
1581 }
1582 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1583 snprintf(p, ETH_GSTRING_LEN,
1584 "veb.tc_%u_tx_packets", i);
1585 p += ETH_GSTRING_LEN;
1586 snprintf(p, ETH_GSTRING_LEN,
1587 "veb.tc_%u_tx_bytes", i);
1588 p += ETH_GSTRING_LEN;
1589 snprintf(p, ETH_GSTRING_LEN,
1590 "veb.tc_%u_rx_packets", i);
1591 p += ETH_GSTRING_LEN;
1592 snprintf(p, ETH_GSTRING_LEN,
1593 "veb.tc_%u_rx_bytes", i);
1594 p += ETH_GSTRING_LEN;
1595 }
1596 }
1597 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1598 snprintf(p, ETH_GSTRING_LEN, "port.%s",
1599 i40e_gstrings_stats[i].stat_string);
1600 p += ETH_GSTRING_LEN;
1601 }
1602 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1603 snprintf(p, ETH_GSTRING_LEN,
1604 "port.tx_priority_%u_xon", i);
1605 p += ETH_GSTRING_LEN;
1606 snprintf(p, ETH_GSTRING_LEN,
1607 "port.tx_priority_%u_xoff", i);
1608 p += ETH_GSTRING_LEN;
1609 }
1610 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1611 snprintf(p, ETH_GSTRING_LEN,
1612 "port.rx_priority_%u_xon", i);
1613 p += ETH_GSTRING_LEN;
1614 snprintf(p, ETH_GSTRING_LEN,
1615 "port.rx_priority_%u_xoff", i);
1616 p += ETH_GSTRING_LEN;
1617 }
1618 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1619 snprintf(p, ETH_GSTRING_LEN,
1620 "port.rx_priority_%u_xon_2_xoff", i);
1621 p += ETH_GSTRING_LEN;
1622 }
1623 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1624 break;
1625 case ETH_SS_PRIV_FLAGS:
1626 if (pf->hw.pf_id == 0) {
1627 for (i = 0; i < I40E_PRIV_FLAGS_GL_STR_LEN; i++) {
1628 memcpy(data, i40e_priv_flags_strings_gl[i],
1629 ETH_GSTRING_LEN);
1630 data += ETH_GSTRING_LEN;
1631 }
1632 } else {
1633 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1634 memcpy(data, i40e_priv_flags_strings[i],
1635 ETH_GSTRING_LEN);
1636 data += ETH_GSTRING_LEN;
1637 }
1638 }
1639 break;
1640 default:
1641 break;
1642 }
1643 }
1644
1645 static int i40e_get_ts_info(struct net_device *dev,
1646 struct ethtool_ts_info *info)
1647 {
1648 struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1649
1650 /* only report HW timestamping if PTP is enabled */
1651 if (!(pf->flags & I40E_FLAG_PTP))
1652 return ethtool_op_get_ts_info(dev, info);
1653
1654 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1655 SOF_TIMESTAMPING_RX_SOFTWARE |
1656 SOF_TIMESTAMPING_SOFTWARE |
1657 SOF_TIMESTAMPING_TX_HARDWARE |
1658 SOF_TIMESTAMPING_RX_HARDWARE |
1659 SOF_TIMESTAMPING_RAW_HARDWARE;
1660
1661 if (pf->ptp_clock)
1662 info->phc_index = ptp_clock_index(pf->ptp_clock);
1663 else
1664 info->phc_index = -1;
1665
1666 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1667
1668 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1669 BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1670 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1671
1672 return 0;
1673 }
1674
1675 static int i40e_link_test(struct net_device *netdev, u64 *data)
1676 {
1677 struct i40e_netdev_priv *np = netdev_priv(netdev);
1678 struct i40e_pf *pf = np->vsi->back;
1679 i40e_status status;
1680 bool link_up = false;
1681
1682 netif_info(pf, hw, netdev, "link test\n");
1683 status = i40e_get_link_status(&pf->hw, &link_up);
1684 if (status) {
1685 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1686 *data = 1;
1687 return *data;
1688 }
1689
1690 if (link_up)
1691 *data = 0;
1692 else
1693 *data = 1;
1694
1695 return *data;
1696 }
1697
1698 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1699 {
1700 struct i40e_netdev_priv *np = netdev_priv(netdev);
1701 struct i40e_pf *pf = np->vsi->back;
1702
1703 netif_info(pf, hw, netdev, "register test\n");
1704 *data = i40e_diag_reg_test(&pf->hw);
1705
1706 return *data;
1707 }
1708
1709 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1710 {
1711 struct i40e_netdev_priv *np = netdev_priv(netdev);
1712 struct i40e_pf *pf = np->vsi->back;
1713
1714 netif_info(pf, hw, netdev, "eeprom test\n");
1715 *data = i40e_diag_eeprom_test(&pf->hw);
1716
1717 /* forcebly clear the NVM Update state machine */
1718 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1719
1720 return *data;
1721 }
1722
1723 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1724 {
1725 struct i40e_netdev_priv *np = netdev_priv(netdev);
1726 struct i40e_pf *pf = np->vsi->back;
1727 u16 swc_old = pf->sw_int_count;
1728
1729 netif_info(pf, hw, netdev, "interrupt test\n");
1730 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1731 (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1732 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1733 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1734 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1735 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1736 usleep_range(1000, 2000);
1737 *data = (swc_old == pf->sw_int_count);
1738
1739 return *data;
1740 }
1741
1742 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1743 {
1744 struct i40e_netdev_priv *np = netdev_priv(netdev);
1745 struct i40e_pf *pf = np->vsi->back;
1746
1747 netif_info(pf, hw, netdev, "loopback test not implemented\n");
1748 *data = 0;
1749
1750 return *data;
1751 }
1752
1753 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1754 {
1755 struct i40e_vf *vfs = pf->vf;
1756 int i;
1757
1758 for (i = 0; i < pf->num_alloc_vfs; i++)
1759 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1760 return true;
1761 return false;
1762 }
1763
1764 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1765 {
1766 struct i40e_vsi **vsi = pf->vsi;
1767 int i;
1768
1769 for (i = 0; i < pf->num_alloc_vsi; i++) {
1770 if (!vsi[i])
1771 continue;
1772 if (vsi[i]->type == I40E_VSI_VMDQ2)
1773 return true;
1774 }
1775
1776 return false;
1777 }
1778
1779 static void i40e_diag_test(struct net_device *netdev,
1780 struct ethtool_test *eth_test, u64 *data)
1781 {
1782 struct i40e_netdev_priv *np = netdev_priv(netdev);
1783 bool if_running = netif_running(netdev);
1784 struct i40e_pf *pf = np->vsi->back;
1785
1786 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1787 /* Offline tests */
1788 netif_info(pf, drv, netdev, "offline testing starting\n");
1789
1790 set_bit(__I40E_TESTING, &pf->state);
1791
1792 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1793 dev_warn(&pf->pdev->dev,
1794 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1795 data[I40E_ETH_TEST_REG] = 1;
1796 data[I40E_ETH_TEST_EEPROM] = 1;
1797 data[I40E_ETH_TEST_INTR] = 1;
1798 data[I40E_ETH_TEST_LOOPBACK] = 1;
1799 data[I40E_ETH_TEST_LINK] = 1;
1800 eth_test->flags |= ETH_TEST_FL_FAILED;
1801 clear_bit(__I40E_TESTING, &pf->state);
1802 goto skip_ol_tests;
1803 }
1804
1805 /* If the device is online then take it offline */
1806 if (if_running)
1807 /* indicate we're in test mode */
1808 i40e_close(netdev);
1809 else
1810 /* This reset does not affect link - if it is
1811 * changed to a type of reset that does affect
1812 * link then the following link test would have
1813 * to be moved to before the reset
1814 */
1815 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1816
1817 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1818 eth_test->flags |= ETH_TEST_FL_FAILED;
1819
1820 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1821 eth_test->flags |= ETH_TEST_FL_FAILED;
1822
1823 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1824 eth_test->flags |= ETH_TEST_FL_FAILED;
1825
1826 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1827 eth_test->flags |= ETH_TEST_FL_FAILED;
1828
1829 /* run reg test last, a reset is required after it */
1830 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1831 eth_test->flags |= ETH_TEST_FL_FAILED;
1832
1833 clear_bit(__I40E_TESTING, &pf->state);
1834 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1835
1836 if (if_running)
1837 i40e_open(netdev);
1838 } else {
1839 /* Online tests */
1840 netif_info(pf, drv, netdev, "online testing starting\n");
1841
1842 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1843 eth_test->flags |= ETH_TEST_FL_FAILED;
1844
1845 /* Offline only tests, not run in online; pass by default */
1846 data[I40E_ETH_TEST_REG] = 0;
1847 data[I40E_ETH_TEST_EEPROM] = 0;
1848 data[I40E_ETH_TEST_INTR] = 0;
1849 data[I40E_ETH_TEST_LOOPBACK] = 0;
1850 }
1851
1852 skip_ol_tests:
1853
1854 netif_info(pf, drv, netdev, "testing finished\n");
1855 }
1856
1857 static void i40e_get_wol(struct net_device *netdev,
1858 struct ethtool_wolinfo *wol)
1859 {
1860 struct i40e_netdev_priv *np = netdev_priv(netdev);
1861 struct i40e_pf *pf = np->vsi->back;
1862 struct i40e_hw *hw = &pf->hw;
1863 u16 wol_nvm_bits;
1864
1865 /* NVM bit on means WoL disabled for the port */
1866 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1867 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1868 wol->supported = 0;
1869 wol->wolopts = 0;
1870 } else {
1871 wol->supported = WAKE_MAGIC;
1872 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1873 }
1874 }
1875
1876 /**
1877 * i40e_set_wol - set the WakeOnLAN configuration
1878 * @netdev: the netdev in question
1879 * @wol: the ethtool WoL setting data
1880 **/
1881 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1882 {
1883 struct i40e_netdev_priv *np = netdev_priv(netdev);
1884 struct i40e_pf *pf = np->vsi->back;
1885 struct i40e_vsi *vsi = np->vsi;
1886 struct i40e_hw *hw = &pf->hw;
1887 u16 wol_nvm_bits;
1888
1889 /* WoL not supported if this isn't the controlling PF on the port */
1890 if (hw->partition_id != 1) {
1891 i40e_partition_setting_complaint(pf);
1892 return -EOPNOTSUPP;
1893 }
1894
1895 if (vsi != pf->vsi[pf->lan_vsi])
1896 return -EOPNOTSUPP;
1897
1898 /* NVM bit on means WoL disabled for the port */
1899 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1900 if (BIT(hw->port) & wol_nvm_bits)
1901 return -EOPNOTSUPP;
1902
1903 /* only magic packet is supported */
1904 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1905 return -EOPNOTSUPP;
1906
1907 /* is this a new value? */
1908 if (pf->wol_en != !!wol->wolopts) {
1909 pf->wol_en = !!wol->wolopts;
1910 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1911 }
1912
1913 return 0;
1914 }
1915
1916 static int i40e_set_phys_id(struct net_device *netdev,
1917 enum ethtool_phys_id_state state)
1918 {
1919 struct i40e_netdev_priv *np = netdev_priv(netdev);
1920 i40e_status ret = 0;
1921 struct i40e_pf *pf = np->vsi->back;
1922 struct i40e_hw *hw = &pf->hw;
1923 int blink_freq = 2;
1924 u16 temp_status;
1925
1926 switch (state) {
1927 case ETHTOOL_ID_ACTIVE:
1928 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
1929 pf->led_status = i40e_led_get(hw);
1930 } else {
1931 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL);
1932 ret = i40e_led_get_phy(hw, &temp_status,
1933 &pf->phy_led_val);
1934 pf->led_status = temp_status;
1935 }
1936 return blink_freq;
1937 case ETHTOOL_ID_ON:
1938 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
1939 i40e_led_set(hw, 0xf, false);
1940 else
1941 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
1942 break;
1943 case ETHTOOL_ID_OFF:
1944 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
1945 i40e_led_set(hw, 0x0, false);
1946 else
1947 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
1948 break;
1949 case ETHTOOL_ID_INACTIVE:
1950 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
1951 i40e_led_set(hw, false, pf->led_status);
1952 } else {
1953 ret = i40e_led_set_phy(hw, false, pf->led_status,
1954 (pf->phy_led_val |
1955 I40E_PHY_LED_MODE_ORIG));
1956 i40e_aq_set_phy_debug(hw, 0, NULL);
1957 }
1958 break;
1959 default:
1960 break;
1961 }
1962 if (ret)
1963 return -ENOENT;
1964 else
1965 return 0;
1966 }
1967
1968 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1969 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1970 * 125us (8000 interrupts per second) == ITR(62)
1971 */
1972
1973 static int __i40e_get_coalesce(struct net_device *netdev,
1974 struct ethtool_coalesce *ec,
1975 int queue)
1976 {
1977 struct i40e_netdev_priv *np = netdev_priv(netdev);
1978 struct i40e_vsi *vsi = np->vsi;
1979
1980 ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1981 ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1982
1983 /* rx and tx usecs has per queue value. If user doesn't specify the queue,
1984 * return queue 0's value to represent.
1985 */
1986 if (queue < 0) {
1987 queue = 0;
1988 } else if (queue >= vsi->num_queue_pairs) {
1989 return -EINVAL;
1990 }
1991
1992 if (ITR_IS_DYNAMIC(vsi->rx_rings[queue]->rx_itr_setting))
1993 ec->use_adaptive_rx_coalesce = 1;
1994
1995 if (ITR_IS_DYNAMIC(vsi->tx_rings[queue]->tx_itr_setting))
1996 ec->use_adaptive_tx_coalesce = 1;
1997
1998 ec->rx_coalesce_usecs = vsi->rx_rings[queue]->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1999 ec->tx_coalesce_usecs = vsi->tx_rings[queue]->tx_itr_setting & ~I40E_ITR_DYNAMIC;
2000
2001 /* we use the _usecs_high to store/set the interrupt rate limit
2002 * that the hardware supports, that almost but not quite
2003 * fits the original intent of the ethtool variable,
2004 * the rx_coalesce_usecs_high limits total interrupts
2005 * per second from both tx/rx sources.
2006 */
2007 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2008 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2009
2010 return 0;
2011 }
2012
2013 static int i40e_get_coalesce(struct net_device *netdev,
2014 struct ethtool_coalesce *ec)
2015 {
2016 return __i40e_get_coalesce(netdev, ec, -1);
2017 }
2018
2019 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2020 struct ethtool_coalesce *ec)
2021 {
2022 return __i40e_get_coalesce(netdev, ec, queue);
2023 }
2024
2025 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2026 struct ethtool_coalesce *ec,
2027 int queue)
2028 {
2029 struct i40e_pf *pf = vsi->back;
2030 struct i40e_hw *hw = &pf->hw;
2031 struct i40e_q_vector *q_vector;
2032 u16 vector, intrl;
2033
2034 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
2035
2036 vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs;
2037 vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs;
2038
2039 if (ec->use_adaptive_rx_coalesce)
2040 vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC;
2041 else
2042 vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
2043
2044 if (ec->use_adaptive_tx_coalesce)
2045 vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC;
2046 else
2047 vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
2048
2049 q_vector = vsi->rx_rings[queue]->q_vector;
2050 q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting);
2051 vector = vsi->base_vector + q_vector->v_idx;
2052 wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
2053
2054 q_vector = vsi->tx_rings[queue]->q_vector;
2055 q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting);
2056 vector = vsi->base_vector + q_vector->v_idx;
2057 wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
2058
2059 wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
2060 i40e_flush(hw);
2061 }
2062
2063 static int __i40e_set_coalesce(struct net_device *netdev,
2064 struct ethtool_coalesce *ec,
2065 int queue)
2066 {
2067 struct i40e_netdev_priv *np = netdev_priv(netdev);
2068 struct i40e_vsi *vsi = np->vsi;
2069 struct i40e_pf *pf = vsi->back;
2070 int i;
2071
2072 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2073 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2074
2075 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2076 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2077 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2078 return -EINVAL;
2079 }
2080
2081 if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2082 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
2083 return -EINVAL;
2084 }
2085
2086 if (ec->rx_coalesce_usecs == 0) {
2087 if (ec->use_adaptive_rx_coalesce)
2088 netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
2089 } else if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
2090 (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
2091 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2092 return -EINVAL;
2093 }
2094
2095 vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
2096
2097 if (ec->tx_coalesce_usecs == 0) {
2098 if (ec->use_adaptive_tx_coalesce)
2099 netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
2100 } else if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
2101 (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
2102 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2103 return -EINVAL;
2104 }
2105
2106 /* rx and tx usecs has per queue value. If user doesn't specify the queue,
2107 * apply to all queues.
2108 */
2109 if (queue < 0) {
2110 for (i = 0; i < vsi->num_queue_pairs; i++)
2111 i40e_set_itr_per_queue(vsi, ec, i);
2112 } else if (queue < vsi->num_queue_pairs) {
2113 i40e_set_itr_per_queue(vsi, ec, queue);
2114 } else {
2115 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2116 vsi->num_queue_pairs - 1);
2117 return -EINVAL;
2118 }
2119
2120 return 0;
2121 }
2122
2123 static int i40e_set_coalesce(struct net_device *netdev,
2124 struct ethtool_coalesce *ec)
2125 {
2126 return __i40e_set_coalesce(netdev, ec, -1);
2127 }
2128
2129 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2130 struct ethtool_coalesce *ec)
2131 {
2132 return __i40e_set_coalesce(netdev, ec, queue);
2133 }
2134
2135 /**
2136 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2137 * @pf: pointer to the physical function struct
2138 * @cmd: ethtool rxnfc command
2139 *
2140 * Returns Success if the flow is supported, else Invalid Input.
2141 **/
2142 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2143 {
2144 cmd->data = 0;
2145
2146 if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
2147 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
2148 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
2149 return 0;
2150 }
2151 /* Report default options for RSS on i40e */
2152 switch (cmd->flow_type) {
2153 case TCP_V4_FLOW:
2154 case UDP_V4_FLOW:
2155 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2156 /* fall through to add IP fields */
2157 case SCTP_V4_FLOW:
2158 case AH_ESP_V4_FLOW:
2159 case AH_V4_FLOW:
2160 case ESP_V4_FLOW:
2161 case IPV4_FLOW:
2162 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2163 break;
2164 case TCP_V6_FLOW:
2165 case UDP_V6_FLOW:
2166 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2167 /* fall through to add IP fields */
2168 case SCTP_V6_FLOW:
2169 case AH_ESP_V6_FLOW:
2170 case AH_V6_FLOW:
2171 case ESP_V6_FLOW:
2172 case IPV6_FLOW:
2173 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2174 break;
2175 default:
2176 return -EINVAL;
2177 }
2178
2179 return 0;
2180 }
2181
2182 /**
2183 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2184 * @pf: Pointer to the physical function struct
2185 * @cmd: The command to get or set Rx flow classification rules
2186 * @rule_locs: Array of used rule locations
2187 *
2188 * This function populates both the total and actual rule count of
2189 * the ethtool flow classification command
2190 *
2191 * Returns 0 on success or -EMSGSIZE if entry not found
2192 **/
2193 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2194 struct ethtool_rxnfc *cmd,
2195 u32 *rule_locs)
2196 {
2197 struct i40e_fdir_filter *rule;
2198 struct hlist_node *node2;
2199 int cnt = 0;
2200
2201 /* report total rule count */
2202 cmd->data = i40e_get_fd_cnt_all(pf);
2203
2204 hlist_for_each_entry_safe(rule, node2,
2205 &pf->fdir_filter_list, fdir_node) {
2206 if (cnt == cmd->rule_cnt)
2207 return -EMSGSIZE;
2208
2209 rule_locs[cnt] = rule->fd_id;
2210 cnt++;
2211 }
2212
2213 cmd->rule_cnt = cnt;
2214
2215 return 0;
2216 }
2217
2218 /**
2219 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2220 * @pf: Pointer to the physical function struct
2221 * @cmd: The command to get or set Rx flow classification rules
2222 *
2223 * This function looks up a filter based on the Rx flow classification
2224 * command and fills the flow spec info for it if found
2225 *
2226 * Returns 0 on success or -EINVAL if filter not found
2227 **/
2228 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2229 struct ethtool_rxnfc *cmd)
2230 {
2231 struct ethtool_rx_flow_spec *fsp =
2232 (struct ethtool_rx_flow_spec *)&cmd->fs;
2233 struct i40e_fdir_filter *rule = NULL;
2234 struct hlist_node *node2;
2235
2236 hlist_for_each_entry_safe(rule, node2,
2237 &pf->fdir_filter_list, fdir_node) {
2238 if (fsp->location <= rule->fd_id)
2239 break;
2240 }
2241
2242 if (!rule || fsp->location != rule->fd_id)
2243 return -EINVAL;
2244
2245 fsp->flow_type = rule->flow_type;
2246 if (fsp->flow_type == IP_USER_FLOW) {
2247 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2248 fsp->h_u.usr_ip4_spec.proto = 0;
2249 fsp->m_u.usr_ip4_spec.proto = 0;
2250 }
2251
2252 /* Reverse the src and dest notion, since the HW views them from
2253 * Tx perspective where as the user expects it from Rx filter view.
2254 */
2255 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2256 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2257 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2258 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2259
2260 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2261 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2262 else
2263 fsp->ring_cookie = rule->q_index;
2264
2265 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2266 struct i40e_vsi *vsi;
2267
2268 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2269 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2270 fsp->h_ext.data[1] = htonl(vsi->vf_id);
2271 fsp->m_ext.data[1] = htonl(0x1);
2272 }
2273 }
2274
2275 return 0;
2276 }
2277
2278 /**
2279 * i40e_get_rxnfc - command to get RX flow classification rules
2280 * @netdev: network interface device structure
2281 * @cmd: ethtool rxnfc command
2282 *
2283 * Returns Success if the command is supported.
2284 **/
2285 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2286 u32 *rule_locs)
2287 {
2288 struct i40e_netdev_priv *np = netdev_priv(netdev);
2289 struct i40e_vsi *vsi = np->vsi;
2290 struct i40e_pf *pf = vsi->back;
2291 int ret = -EOPNOTSUPP;
2292
2293 switch (cmd->cmd) {
2294 case ETHTOOL_GRXRINGS:
2295 cmd->data = vsi->num_queue_pairs;
2296 ret = 0;
2297 break;
2298 case ETHTOOL_GRXFH:
2299 ret = i40e_get_rss_hash_opts(pf, cmd);
2300 break;
2301 case ETHTOOL_GRXCLSRLCNT:
2302 cmd->rule_cnt = pf->fdir_pf_active_filters;
2303 /* report total rule count */
2304 cmd->data = i40e_get_fd_cnt_all(pf);
2305 ret = 0;
2306 break;
2307 case ETHTOOL_GRXCLSRULE:
2308 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2309 break;
2310 case ETHTOOL_GRXCLSRLALL:
2311 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2312 break;
2313 default:
2314 break;
2315 }
2316
2317 return ret;
2318 }
2319
2320 /**
2321 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2322 * @pf: pointer to the physical function struct
2323 * @cmd: ethtool rxnfc command
2324 *
2325 * Returns Success if the flow input set is supported.
2326 **/
2327 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2328 {
2329 struct i40e_hw *hw = &pf->hw;
2330 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
2331 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
2332
2333 /* RSS does not support anything other than hashing
2334 * to queues on src and dst IPs and ports
2335 */
2336 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2337 RXH_L4_B_0_1 | RXH_L4_B_2_3))
2338 return -EINVAL;
2339
2340 /* We need at least the IP SRC and DEST fields for hashing */
2341 if (!(nfc->data & RXH_IP_SRC) ||
2342 !(nfc->data & RXH_IP_DST))
2343 return -EINVAL;
2344
2345 switch (nfc->flow_type) {
2346 case TCP_V4_FLOW:
2347 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2348 case 0:
2349 return -EINVAL;
2350 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2351 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2352 hena |=
2353 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2354
2355 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2356 break;
2357 default:
2358 return -EINVAL;
2359 }
2360 break;
2361 case TCP_V6_FLOW:
2362 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2363 case 0:
2364 return -EINVAL;
2365 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2366 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2367 hena |=
2368 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
2369
2370 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2371 break;
2372 default:
2373 return -EINVAL;
2374 }
2375 break;
2376 case UDP_V4_FLOW:
2377 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2378 case 0:
2379 return -EINVAL;
2380 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2381 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2382 hena |=
2383 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
2384 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
2385
2386 hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2387 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2388 break;
2389 default:
2390 return -EINVAL;
2391 }
2392 break;
2393 case UDP_V6_FLOW:
2394 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2395 case 0:
2396 return -EINVAL;
2397 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2398 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2399 hena |=
2400 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
2401 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
2402
2403 hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2404 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2405 break;
2406 default:
2407 return -EINVAL;
2408 }
2409 break;
2410 case AH_ESP_V4_FLOW:
2411 case AH_V4_FLOW:
2412 case ESP_V4_FLOW:
2413 case SCTP_V4_FLOW:
2414 if ((nfc->data & RXH_L4_B_0_1) ||
2415 (nfc->data & RXH_L4_B_2_3))
2416 return -EINVAL;
2417 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2418 break;
2419 case AH_ESP_V6_FLOW:
2420 case AH_V6_FLOW:
2421 case ESP_V6_FLOW:
2422 case SCTP_V6_FLOW:
2423 if ((nfc->data & RXH_L4_B_0_1) ||
2424 (nfc->data & RXH_L4_B_2_3))
2425 return -EINVAL;
2426 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2427 break;
2428 case IPV4_FLOW:
2429 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2430 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2431 break;
2432 case IPV6_FLOW:
2433 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2434 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2435 break;
2436 default:
2437 return -EINVAL;
2438 }
2439
2440 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
2441 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2442 i40e_flush(hw);
2443
2444 /* Save setting for future output/update */
2445 pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2446
2447 return 0;
2448 }
2449
2450 /**
2451 * i40e_match_fdir_input_set - Match a new filter against an existing one
2452 * @rule: The filter already added
2453 * @input: The new filter to comapre against
2454 *
2455 * Returns true if the two input set match
2456 **/
2457 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2458 struct i40e_fdir_filter *input)
2459 {
2460 if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2461 (rule->src_ip[0] != input->src_ip[0]) ||
2462 (rule->dst_port != input->dst_port) ||
2463 (rule->src_port != input->src_port))
2464 return false;
2465 return true;
2466 }
2467
2468 /**
2469 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2470 * @vsi: Pointer to the targeted VSI
2471 * @input: The filter to update or NULL to indicate deletion
2472 * @sw_idx: Software index to the filter
2473 * @cmd: The command to get or set Rx flow classification rules
2474 *
2475 * This function updates (or deletes) a Flow Director entry from
2476 * the hlist of the corresponding PF
2477 *
2478 * Returns 0 on success
2479 **/
2480 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2481 struct i40e_fdir_filter *input,
2482 u16 sw_idx,
2483 struct ethtool_rxnfc *cmd)
2484 {
2485 struct i40e_fdir_filter *rule, *parent;
2486 struct i40e_pf *pf = vsi->back;
2487 struct hlist_node *node2;
2488 int err = -EINVAL;
2489
2490 parent = NULL;
2491 rule = NULL;
2492
2493 hlist_for_each_entry_safe(rule, node2,
2494 &pf->fdir_filter_list, fdir_node) {
2495 /* hash found, or no matching entry */
2496 if (rule->fd_id >= sw_idx)
2497 break;
2498 parent = rule;
2499 }
2500
2501 /* if there is an old rule occupying our place remove it */
2502 if (rule && (rule->fd_id == sw_idx)) {
2503 if (input && !i40e_match_fdir_input_set(rule, input))
2504 err = i40e_add_del_fdir(vsi, rule, false);
2505 else if (!input)
2506 err = i40e_add_del_fdir(vsi, rule, false);
2507 hlist_del(&rule->fdir_node);
2508 kfree(rule);
2509 pf->fdir_pf_active_filters--;
2510 }
2511
2512 /* If no input this was a delete, err should be 0 if a rule was
2513 * successfully found and removed from the list else -EINVAL
2514 */
2515 if (!input)
2516 return err;
2517
2518 /* initialize node and set software index */
2519 INIT_HLIST_NODE(&input->fdir_node);
2520
2521 /* add filter to the list */
2522 if (parent)
2523 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2524 else
2525 hlist_add_head(&input->fdir_node,
2526 &pf->fdir_filter_list);
2527
2528 /* update counts */
2529 pf->fdir_pf_active_filters++;
2530
2531 return 0;
2532 }
2533
2534 /**
2535 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2536 * @vsi: Pointer to the targeted VSI
2537 * @cmd: The command to get or set Rx flow classification rules
2538 *
2539 * The function removes a Flow Director filter entry from the
2540 * hlist of the corresponding PF
2541 *
2542 * Returns 0 on success
2543 */
2544 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2545 struct ethtool_rxnfc *cmd)
2546 {
2547 struct ethtool_rx_flow_spec *fsp =
2548 (struct ethtool_rx_flow_spec *)&cmd->fs;
2549 struct i40e_pf *pf = vsi->back;
2550 int ret = 0;
2551
2552 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2553 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2554 return -EBUSY;
2555
2556 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2557 return -EBUSY;
2558
2559 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2560
2561 i40e_fdir_check_and_reenable(pf);
2562 return ret;
2563 }
2564
2565 /**
2566 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2567 * @vsi: pointer to the targeted VSI
2568 * @cmd: command to get or set RX flow classification rules
2569 *
2570 * Add Flow Director filters for a specific flow spec based on their
2571 * protocol. Returns 0 if the filters were successfully added.
2572 **/
2573 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2574 struct ethtool_rxnfc *cmd)
2575 {
2576 struct ethtool_rx_flow_spec *fsp;
2577 struct i40e_fdir_filter *input;
2578 struct i40e_pf *pf;
2579 int ret = -EINVAL;
2580 u16 vf_id;
2581
2582 if (!vsi)
2583 return -EINVAL;
2584 pf = vsi->back;
2585
2586 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2587 return -EOPNOTSUPP;
2588
2589 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2590 return -ENOSPC;
2591
2592 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2593 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2594 return -EBUSY;
2595
2596 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2597 return -EBUSY;
2598
2599 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2600
2601 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2602 pf->hw.func_caps.fd_filters_guaranteed)) {
2603 return -EINVAL;
2604 }
2605
2606 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2607 (fsp->ring_cookie >= vsi->num_queue_pairs))
2608 return -EINVAL;
2609
2610 input = kzalloc(sizeof(*input), GFP_KERNEL);
2611
2612 if (!input)
2613 return -ENOMEM;
2614
2615 input->fd_id = fsp->location;
2616
2617 if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2618 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2619 else
2620 input->dest_ctl =
2621 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2622
2623 input->q_index = fsp->ring_cookie;
2624 input->flex_off = 0;
2625 input->pctype = 0;
2626 input->dest_vsi = vsi->id;
2627 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2628 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2629 input->flow_type = fsp->flow_type;
2630 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2631
2632 /* Reverse the src and dest notion, since the HW expects them to be from
2633 * Tx perspective where as the input from user is from Rx filter view.
2634 */
2635 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2636 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2637 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2638 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2639
2640 if (ntohl(fsp->m_ext.data[1])) {
2641 vf_id = ntohl(fsp->h_ext.data[1]);
2642 if (vf_id >= pf->num_alloc_vfs) {
2643 netif_info(pf, drv, vsi->netdev,
2644 "Invalid VF id %d\n", vf_id);
2645 goto free_input;
2646 }
2647 /* Find vsi id from vf id and override dest vsi */
2648 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2649 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2650 netif_info(pf, drv, vsi->netdev,
2651 "Invalid queue id %d for VF %d\n",
2652 input->q_index, vf_id);
2653 goto free_input;
2654 }
2655 }
2656
2657 ret = i40e_add_del_fdir(vsi, input, true);
2658 free_input:
2659 if (ret)
2660 kfree(input);
2661 else
2662 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2663
2664 return ret;
2665 }
2666
2667 /**
2668 * i40e_set_rxnfc - command to set RX flow classification rules
2669 * @netdev: network interface device structure
2670 * @cmd: ethtool rxnfc command
2671 *
2672 * Returns Success if the command is supported.
2673 **/
2674 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2675 {
2676 struct i40e_netdev_priv *np = netdev_priv(netdev);
2677 struct i40e_vsi *vsi = np->vsi;
2678 struct i40e_pf *pf = vsi->back;
2679 int ret = -EOPNOTSUPP;
2680
2681 switch (cmd->cmd) {
2682 case ETHTOOL_SRXFH:
2683 ret = i40e_set_rss_hash_opt(pf, cmd);
2684 break;
2685 case ETHTOOL_SRXCLSRLINS:
2686 ret = i40e_add_fdir_ethtool(vsi, cmd);
2687 break;
2688 case ETHTOOL_SRXCLSRLDEL:
2689 ret = i40e_del_fdir_entry(vsi, cmd);
2690 break;
2691 default:
2692 break;
2693 }
2694
2695 return ret;
2696 }
2697
2698 /**
2699 * i40e_max_channels - get Max number of combined channels supported
2700 * @vsi: vsi pointer
2701 **/
2702 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2703 {
2704 /* TODO: This code assumes DCB and FD is disabled for now. */
2705 return vsi->alloc_queue_pairs;
2706 }
2707
2708 /**
2709 * i40e_get_channels - Get the current channels enabled and max supported etc.
2710 * @netdev: network interface device structure
2711 * @ch: ethtool channels structure
2712 *
2713 * We don't support separate tx and rx queues as channels. The other count
2714 * represents how many queues are being used for control. max_combined counts
2715 * how many queue pairs we can support. They may not be mapped 1 to 1 with
2716 * q_vectors since we support a lot more queue pairs than q_vectors.
2717 **/
2718 static void i40e_get_channels(struct net_device *dev,
2719 struct ethtool_channels *ch)
2720 {
2721 struct i40e_netdev_priv *np = netdev_priv(dev);
2722 struct i40e_vsi *vsi = np->vsi;
2723 struct i40e_pf *pf = vsi->back;
2724
2725 /* report maximum channels */
2726 ch->max_combined = i40e_max_channels(vsi);
2727
2728 /* report info for other vector */
2729 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2730 ch->max_other = ch->other_count;
2731
2732 /* Note: This code assumes DCB is disabled for now. */
2733 ch->combined_count = vsi->num_queue_pairs;
2734 }
2735
2736 /**
2737 * i40e_set_channels - Set the new channels count.
2738 * @netdev: network interface device structure
2739 * @ch: ethtool channels structure
2740 *
2741 * The new channels count may not be the same as requested by the user
2742 * since it gets rounded down to a power of 2 value.
2743 **/
2744 static int i40e_set_channels(struct net_device *dev,
2745 struct ethtool_channels *ch)
2746 {
2747 struct i40e_netdev_priv *np = netdev_priv(dev);
2748 unsigned int count = ch->combined_count;
2749 struct i40e_vsi *vsi = np->vsi;
2750 struct i40e_pf *pf = vsi->back;
2751 int new_count;
2752
2753 /* We do not support setting channels for any other VSI at present */
2754 if (vsi->type != I40E_VSI_MAIN)
2755 return -EINVAL;
2756
2757 /* verify they are not requesting separate vectors */
2758 if (!count || ch->rx_count || ch->tx_count)
2759 return -EINVAL;
2760
2761 /* verify other_count has not changed */
2762 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2763 return -EINVAL;
2764
2765 /* verify the number of channels does not exceed hardware limits */
2766 if (count > i40e_max_channels(vsi))
2767 return -EINVAL;
2768
2769 /* update feature limits from largest to smallest supported values */
2770 /* TODO: Flow director limit, DCB etc */
2771
2772 /* use rss_reconfig to rebuild with new queue count and update traffic
2773 * class queue mapping
2774 */
2775 new_count = i40e_reconfig_rss_queues(pf, count);
2776 if (new_count > 0)
2777 return 0;
2778 else
2779 return -EINVAL;
2780 }
2781
2782 /**
2783 * i40e_get_rxfh_key_size - get the RSS hash key size
2784 * @netdev: network interface device structure
2785 *
2786 * Returns the table size.
2787 **/
2788 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2789 {
2790 return I40E_HKEY_ARRAY_SIZE;
2791 }
2792
2793 /**
2794 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2795 * @netdev: network interface device structure
2796 *
2797 * Returns the table size.
2798 **/
2799 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2800 {
2801 return I40E_HLUT_ARRAY_SIZE;
2802 }
2803
2804 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2805 u8 *hfunc)
2806 {
2807 struct i40e_netdev_priv *np = netdev_priv(netdev);
2808 struct i40e_vsi *vsi = np->vsi;
2809 u8 *lut, *seed = NULL;
2810 int ret;
2811 u16 i;
2812
2813 if (hfunc)
2814 *hfunc = ETH_RSS_HASH_TOP;
2815
2816 if (!indir)
2817 return 0;
2818
2819 seed = key;
2820 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2821 if (!lut)
2822 return -ENOMEM;
2823 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
2824 if (ret)
2825 goto out;
2826 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2827 indir[i] = (u32)(lut[i]);
2828
2829 out:
2830 kfree(lut);
2831
2832 return ret;
2833 }
2834
2835 /**
2836 * i40e_set_rxfh - set the rx flow hash indirection table
2837 * @netdev: network interface device structure
2838 * @indir: indirection table
2839 * @key: hash key
2840 *
2841 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2842 * returns 0 after programming the table.
2843 **/
2844 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2845 const u8 *key, const u8 hfunc)
2846 {
2847 struct i40e_netdev_priv *np = netdev_priv(netdev);
2848 struct i40e_vsi *vsi = np->vsi;
2849 u8 *seed = NULL;
2850 u16 i;
2851
2852 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2853 return -EOPNOTSUPP;
2854
2855 if (!indir)
2856 return 0;
2857
2858 if (key) {
2859 if (!vsi->rss_hkey_user) {
2860 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
2861 GFP_KERNEL);
2862 if (!vsi->rss_hkey_user)
2863 return -ENOMEM;
2864 }
2865 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
2866 seed = vsi->rss_hkey_user;
2867 }
2868 if (!vsi->rss_lut_user) {
2869 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2870 if (!vsi->rss_lut_user)
2871 return -ENOMEM;
2872 }
2873
2874 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
2875 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2876 vsi->rss_lut_user[i] = (u8)(indir[i]);
2877
2878 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
2879 I40E_HLUT_ARRAY_SIZE);
2880 }
2881
2882 /**
2883 * i40e_get_priv_flags - report device private flags
2884 * @dev: network interface device structure
2885 *
2886 * The get string set count and the string set should be matched for each
2887 * flag returned. Add new strings for each flag to the i40e_priv_flags_strings
2888 * array.
2889 *
2890 * Returns a u32 bitmap of flags.
2891 **/
2892 static u32 i40e_get_priv_flags(struct net_device *dev)
2893 {
2894 struct i40e_netdev_priv *np = netdev_priv(dev);
2895 struct i40e_vsi *vsi = np->vsi;
2896 struct i40e_pf *pf = vsi->back;
2897 u32 ret_flags = 0;
2898
2899 ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2900 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2901 ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2902 I40E_PRIV_FLAGS_FD_ATR : 0;
2903 ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2904 I40E_PRIV_FLAGS_VEB_STATS : 0;
2905 ret_flags |= pf->auto_disable_flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE ?
2906 0 : I40E_PRIV_FLAGS_HW_ATR_EVICT;
2907 if (pf->hw.pf_id == 0) {
2908 ret_flags |= pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT ?
2909 I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT : 0;
2910 }
2911
2912 return ret_flags;
2913 }
2914
2915 /**
2916 * i40e_set_priv_flags - set private flags
2917 * @dev: network interface device structure
2918 * @flags: bit flags to be set
2919 **/
2920 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2921 {
2922 struct i40e_netdev_priv *np = netdev_priv(dev);
2923 struct i40e_vsi *vsi = np->vsi;
2924 struct i40e_pf *pf = vsi->back;
2925 u16 sw_flags = 0, valid_flags = 0;
2926 bool reset_required = false;
2927 bool promisc_change = false;
2928 int ret;
2929
2930 /* NOTE: MFP is not settable */
2931
2932 if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2933 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2934 else
2935 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2936
2937 /* allow the user to control the state of the Flow
2938 * Director ATR (Application Targeted Routing) feature
2939 * of the driver
2940 */
2941 if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2942 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2943 } else {
2944 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2945 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2946 }
2947
2948 if ((flags & I40E_PRIV_FLAGS_VEB_STATS) &&
2949 !(pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
2950 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2951 reset_required = true;
2952 } else if (!(flags & I40E_PRIV_FLAGS_VEB_STATS) &&
2953 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
2954 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2955 reset_required = true;
2956 }
2957
2958 if (pf->hw.pf_id == 0) {
2959 if ((flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) &&
2960 !(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) {
2961 pf->flags |= I40E_FLAG_TRUE_PROMISC_SUPPORT;
2962 promisc_change = true;
2963 } else if (!(flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) &&
2964 (pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) {
2965 pf->flags &= ~I40E_FLAG_TRUE_PROMISC_SUPPORT;
2966 promisc_change = true;
2967 }
2968 }
2969 if (promisc_change) {
2970 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
2971 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
2972 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
2973 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
2974 NULL);
2975 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
2976 dev_info(&pf->pdev->dev,
2977 "couldn't set switch config bits, err %s aq_err %s\n",
2978 i40e_stat_str(&pf->hw, ret),
2979 i40e_aq_str(&pf->hw,
2980 pf->hw.aq.asq_last_status));
2981 /* not a fatal problem, just keep going */
2982 }
2983 }
2984
2985 if ((flags & I40E_PRIV_FLAGS_HW_ATR_EVICT) &&
2986 (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE))
2987 pf->auto_disable_flags &= ~I40E_FLAG_HW_ATR_EVICT_CAPABLE;
2988 else
2989 pf->auto_disable_flags |= I40E_FLAG_HW_ATR_EVICT_CAPABLE;
2990
2991 /* if needed, issue reset to cause things to take effect */
2992 if (reset_required)
2993 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
2994
2995 return 0;
2996 }
2997
2998 static const struct ethtool_ops i40e_ethtool_ops = {
2999 .get_settings = i40e_get_settings,
3000 .set_settings = i40e_set_settings,
3001 .get_drvinfo = i40e_get_drvinfo,
3002 .get_regs_len = i40e_get_regs_len,
3003 .get_regs = i40e_get_regs,
3004 .nway_reset = i40e_nway_reset,
3005 .get_link = ethtool_op_get_link,
3006 .get_wol = i40e_get_wol,
3007 .set_wol = i40e_set_wol,
3008 .set_eeprom = i40e_set_eeprom,
3009 .get_eeprom_len = i40e_get_eeprom_len,
3010 .get_eeprom = i40e_get_eeprom,
3011 .get_ringparam = i40e_get_ringparam,
3012 .set_ringparam = i40e_set_ringparam,
3013 .get_pauseparam = i40e_get_pauseparam,
3014 .set_pauseparam = i40e_set_pauseparam,
3015 .get_msglevel = i40e_get_msglevel,
3016 .set_msglevel = i40e_set_msglevel,
3017 .get_rxnfc = i40e_get_rxnfc,
3018 .set_rxnfc = i40e_set_rxnfc,
3019 .self_test = i40e_diag_test,
3020 .get_strings = i40e_get_strings,
3021 .set_phys_id = i40e_set_phys_id,
3022 .get_sset_count = i40e_get_sset_count,
3023 .get_ethtool_stats = i40e_get_ethtool_stats,
3024 .get_coalesce = i40e_get_coalesce,
3025 .set_coalesce = i40e_set_coalesce,
3026 .get_rxfh_key_size = i40e_get_rxfh_key_size,
3027 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,
3028 .get_rxfh = i40e_get_rxfh,
3029 .set_rxfh = i40e_set_rxfh,
3030 .get_channels = i40e_get_channels,
3031 .set_channels = i40e_set_channels,
3032 .get_ts_info = i40e_get_ts_info,
3033 .get_priv_flags = i40e_get_priv_flags,
3034 .set_priv_flags = i40e_set_priv_flags,
3035 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
3036 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
3037 };
3038
3039 void i40e_set_ethtool_ops(struct net_device *netdev)
3040 {
3041 netdev->ethtool_ops = &i40e_ethtool_ops;
3042 }
Linux kernel - Deliverables
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