1 /*******************************************************************************
2  *
3  * Intel Ethernet Controller XL710 Family Linux Driver
4  * Copyright(c) 2013 - 2015 Intel Corporation.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms and conditions of the GNU General Public License,
8  * version 2, as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13  * more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
17  *
18  * The full GNU General Public License is included in this distribution in
19  * the file called "COPYING".
20  *
21  * Contact Information:
22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24  *
25  ******************************************************************************/
26 
27 /* ethtool support for i40e */
28 
29 #include "i40e.h"
30 #include "i40e_diag.h"
31 
32 struct i40e_stats {
33 	char stat_string[ETH_GSTRING_LEN];
34 	int sizeof_stat;
35 	int stat_offset;
36 };
37 
38 #define I40E_STAT(_type, _name, _stat) { \
39 	.stat_string = _name, \
40 	.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
41 	.stat_offset = offsetof(_type, _stat) \
42 }
43 
44 #define I40E_NETDEV_STAT(_net_stat) \
45 		I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
46 #define I40E_PF_STAT(_name, _stat) \
47 		I40E_STAT(struct i40e_pf, _name, _stat)
48 #define I40E_VSI_STAT(_name, _stat) \
49 		I40E_STAT(struct i40e_vsi, _name, _stat)
50 #define I40E_VEB_STAT(_name, _stat) \
51 		I40E_STAT(struct i40e_veb, _name, _stat)
52 
53 static const struct i40e_stats i40e_gstrings_net_stats[] = {
54 	I40E_NETDEV_STAT(rx_packets),
55 	I40E_NETDEV_STAT(tx_packets),
56 	I40E_NETDEV_STAT(rx_bytes),
57 	I40E_NETDEV_STAT(tx_bytes),
58 	I40E_NETDEV_STAT(rx_errors),
59 	I40E_NETDEV_STAT(tx_errors),
60 	I40E_NETDEV_STAT(rx_dropped),
61 	I40E_NETDEV_STAT(tx_dropped),
62 	I40E_NETDEV_STAT(collisions),
63 	I40E_NETDEV_STAT(rx_length_errors),
64 	I40E_NETDEV_STAT(rx_crc_errors),
65 };
66 
67 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
68 	I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
69 	I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
70 	I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
71 	I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
72 	I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
73 	I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
74 	I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
75 	I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
76 	I40E_VEB_STAT("rx_discards", stats.rx_discards),
77 	I40E_VEB_STAT("tx_discards", stats.tx_discards),
78 	I40E_VEB_STAT("tx_errors", stats.tx_errors),
79 	I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
80 };
81 
82 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
83 	I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
84 	I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
85 	I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
86 	I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
87 	I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
88 	I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
89 	I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
90 	I40E_VSI_STAT("tx_linearize", tx_linearize),
91 };
92 
93 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
94  * but they are separate.  This device supports Virtualization, and
95  * as such might have several netdevs supporting VMDq and FCoE going
96  * through a single port.  The NETDEV_STATs are for individual netdevs
97  * seen at the top of the stack, and the PF_STATs are for the physical
98  * function at the bottom of the stack hosting those netdevs.
99  *
100  * The PF_STATs are appended to the netdev stats only when ethtool -S
101  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
102  */
103 static struct i40e_stats i40e_gstrings_stats[] = {
104 	I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
105 	I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
106 	I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
107 	I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
108 	I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
109 	I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
110 	I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
111 	I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
112 	I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
113 	I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
114 	I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
115 	I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
116 	I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
117 	I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
118 	I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
119 	I40E_PF_STAT("tx_timeout", tx_timeout_count),
120 	I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
121 	I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
122 	I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
123 	I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
124 	I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
125 	I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
126 	I40E_PF_STAT("rx_size_64", stats.rx_size_64),
127 	I40E_PF_STAT("rx_size_127", stats.rx_size_127),
128 	I40E_PF_STAT("rx_size_255", stats.rx_size_255),
129 	I40E_PF_STAT("rx_size_511", stats.rx_size_511),
130 	I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
131 	I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
132 	I40E_PF_STAT("rx_size_big", stats.rx_size_big),
133 	I40E_PF_STAT("tx_size_64", stats.tx_size_64),
134 	I40E_PF_STAT("tx_size_127", stats.tx_size_127),
135 	I40E_PF_STAT("tx_size_255", stats.tx_size_255),
136 	I40E_PF_STAT("tx_size_511", stats.tx_size_511),
137 	I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
138 	I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
139 	I40E_PF_STAT("tx_size_big", stats.tx_size_big),
140 	I40E_PF_STAT("rx_undersize", stats.rx_undersize),
141 	I40E_PF_STAT("rx_fragments", stats.rx_fragments),
142 	I40E_PF_STAT("rx_oversize", stats.rx_oversize),
143 	I40E_PF_STAT("rx_jabber", stats.rx_jabber),
144 	I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
145 	I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
146 	I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
147 	I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
148 	I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
149 	I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
150 	I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
151 	I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
152 
153 	/* LPI stats */
154 	I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
155 	I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
156 	I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
157 	I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
158 };
159 
160 #ifdef I40E_FCOE
161 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
162 	I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
163 	I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
164 	I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
165 	I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
166 	I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
167 	I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
168 	I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
169 	I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
170 };
171 
172 #endif /* I40E_FCOE */
173 #define I40E_QUEUE_STATS_LEN(n) \
174 	(((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
175 	    * 2 /* Tx and Rx together */                                     \
176 	    * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
177 #define I40E_GLOBAL_STATS_LEN	ARRAY_SIZE(i40e_gstrings_stats)
178 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
179 #define I40E_MISC_STATS_LEN	ARRAY_SIZE(i40e_gstrings_misc_stats)
180 #ifdef I40E_FCOE
181 #define I40E_FCOE_STATS_LEN	ARRAY_SIZE(i40e_gstrings_fcoe_stats)
182 #define I40E_VSI_STATS_LEN(n)	(I40E_NETDEV_STATS_LEN + \
183 				 I40E_FCOE_STATS_LEN + \
184 				 I40E_MISC_STATS_LEN + \
185 				 I40E_QUEUE_STATS_LEN((n)))
186 #else
187 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
188 				 I40E_MISC_STATS_LEN + \
189 				 I40E_QUEUE_STATS_LEN((n)))
190 #endif /* I40E_FCOE */
191 #define I40E_PFC_STATS_LEN ( \
192 		(FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
193 		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
194 		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
195 		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
196 		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
197 		 / sizeof(u64))
198 #define I40E_VEB_TC_STATS_LEN ( \
199 		(FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
200 		 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
201 		 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
202 		 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
203 		 / sizeof(u64))
204 #define I40E_VEB_STATS_LEN	ARRAY_SIZE(i40e_gstrings_veb_stats)
205 #define I40E_VEB_STATS_TOTAL	(I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
206 #define I40E_PF_STATS_LEN(n)	(I40E_GLOBAL_STATS_LEN + \
207 				 I40E_PFC_STATS_LEN + \
208 				 I40E_VSI_STATS_LEN((n)))
209 
210 enum i40e_ethtool_test_id {
211 	I40E_ETH_TEST_REG = 0,
212 	I40E_ETH_TEST_EEPROM,
213 	I40E_ETH_TEST_INTR,
214 	I40E_ETH_TEST_LOOPBACK,
215 	I40E_ETH_TEST_LINK,
216 };
217 
218 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
219 	"Register test  (offline)",
220 	"Eeprom test    (offline)",
221 	"Interrupt test (offline)",
222 	"Loopback test  (offline)",
223 	"Link test   (on/offline)"
224 };
225 
226 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
227 
228 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
229 	"NPAR",
230 	"LinkPolling",
231 	"flow-director-atr",
232 	"veb-stats",
233 };
234 
235 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
236 
237 /**
238  * i40e_partition_setting_complaint - generic complaint for MFP restriction
239  * @pf: the PF struct
240  **/
241 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
242 {
243 	dev_info(&pf->pdev->dev,
244 		 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
245 }
246 
247 /**
248  * i40e_get_settings_link_up - Get the Link settings for when link is up
249  * @hw: hw structure
250  * @ecmd: ethtool command to fill in
251  * @netdev: network interface device structure
252  *
253  **/
254 static void i40e_get_settings_link_up(struct i40e_hw *hw,
255 				      struct ethtool_cmd *ecmd,
256 				      struct net_device *netdev,
257 				      struct i40e_pf *pf)
258 {
259 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
260 	u32 link_speed = hw_link_info->link_speed;
261 
262 	/* Initialize supported and advertised settings based on phy settings */
263 	switch (hw_link_info->phy_type) {
264 	case I40E_PHY_TYPE_40GBASE_CR4:
265 	case I40E_PHY_TYPE_40GBASE_CR4_CU:
266 		ecmd->supported = SUPPORTED_Autoneg |
267 				  SUPPORTED_40000baseCR4_Full;
268 		ecmd->advertising = ADVERTISED_Autoneg |
269 				    ADVERTISED_40000baseCR4_Full;
270 		break;
271 	case I40E_PHY_TYPE_XLAUI:
272 	case I40E_PHY_TYPE_XLPPI:
273 	case I40E_PHY_TYPE_40GBASE_AOC:
274 		ecmd->supported = SUPPORTED_40000baseCR4_Full;
275 		break;
276 	case I40E_PHY_TYPE_40GBASE_SR4:
277 		ecmd->supported = SUPPORTED_40000baseSR4_Full;
278 		break;
279 	case I40E_PHY_TYPE_40GBASE_LR4:
280 		ecmd->supported = SUPPORTED_40000baseLR4_Full;
281 		break;
282 	case I40E_PHY_TYPE_10GBASE_SR:
283 	case I40E_PHY_TYPE_10GBASE_LR:
284 	case I40E_PHY_TYPE_1000BASE_SX:
285 	case I40E_PHY_TYPE_1000BASE_LX:
286 		ecmd->supported = SUPPORTED_10000baseT_Full;
287 		if (hw_link_info->module_type[2] &
288 		    I40E_MODULE_TYPE_1000BASE_SX ||
289 		    hw_link_info->module_type[2] &
290 		    I40E_MODULE_TYPE_1000BASE_LX) {
291 			ecmd->supported |= SUPPORTED_1000baseT_Full;
292 			if (hw_link_info->requested_speeds &
293 			    I40E_LINK_SPEED_1GB)
294 				ecmd->advertising |= ADVERTISED_1000baseT_Full;
295 		}
296 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
297 			ecmd->advertising |= ADVERTISED_10000baseT_Full;
298 		break;
299 	case I40E_PHY_TYPE_10GBASE_T:
300 	case I40E_PHY_TYPE_1000BASE_T:
301 		ecmd->supported = SUPPORTED_Autoneg |
302 				  SUPPORTED_10000baseT_Full |
303 				  SUPPORTED_1000baseT_Full;
304 		ecmd->advertising = ADVERTISED_Autoneg;
305 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
306 			ecmd->advertising |= ADVERTISED_10000baseT_Full;
307 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
308 			ecmd->advertising |= ADVERTISED_1000baseT_Full;
309 		break;
310 	case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
311 		ecmd->supported = SUPPORTED_Autoneg |
312 				  SUPPORTED_1000baseT_Full;
313 		ecmd->advertising = ADVERTISED_Autoneg |
314 				    ADVERTISED_1000baseT_Full;
315 		break;
316 	case I40E_PHY_TYPE_100BASE_TX:
317 		ecmd->supported = SUPPORTED_Autoneg |
318 				  SUPPORTED_100baseT_Full;
319 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
320 			ecmd->advertising |= ADVERTISED_100baseT_Full;
321 		break;
322 	case I40E_PHY_TYPE_10GBASE_CR1_CU:
323 	case I40E_PHY_TYPE_10GBASE_CR1:
324 		ecmd->supported = SUPPORTED_Autoneg |
325 				  SUPPORTED_10000baseT_Full;
326 		ecmd->advertising = ADVERTISED_Autoneg |
327 				    ADVERTISED_10000baseT_Full;
328 		break;
329 	case I40E_PHY_TYPE_XAUI:
330 	case I40E_PHY_TYPE_XFI:
331 	case I40E_PHY_TYPE_SFI:
332 	case I40E_PHY_TYPE_10GBASE_SFPP_CU:
333 	case I40E_PHY_TYPE_10GBASE_AOC:
334 		ecmd->supported = SUPPORTED_10000baseT_Full;
335 		break;
336 	case I40E_PHY_TYPE_SGMII:
337 		ecmd->supported = SUPPORTED_Autoneg |
338 				  SUPPORTED_1000baseT_Full;
339 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
340 			ecmd->advertising |= ADVERTISED_1000baseT_Full;
341 		if (pf->hw.mac.type == I40E_MAC_X722) {
342 			ecmd->supported |= SUPPORTED_100baseT_Full;
343 			if (hw_link_info->requested_speeds &
344 			    I40E_LINK_SPEED_100MB)
345 				ecmd->advertising |= ADVERTISED_100baseT_Full;
346 		}
347 		break;
348 	/* Backplane is set based on supported phy types in get_settings
349 	 * so don't set anything here but don't warn either
350 	 */
351 	case I40E_PHY_TYPE_40GBASE_KR4:
352 	case I40E_PHY_TYPE_20GBASE_KR2:
353 	case I40E_PHY_TYPE_10GBASE_KR:
354 	case I40E_PHY_TYPE_10GBASE_KX4:
355 	case I40E_PHY_TYPE_1000BASE_KX:
356 		break;
357 	default:
358 		/* if we got here and link is up something bad is afoot */
359 		netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
360 			    hw_link_info->phy_type);
361 	}
362 
363 	/* Set speed and duplex */
364 	switch (link_speed) {
365 	case I40E_LINK_SPEED_40GB:
366 		ethtool_cmd_speed_set(ecmd, SPEED_40000);
367 		break;
368 	case I40E_LINK_SPEED_20GB:
369 		ethtool_cmd_speed_set(ecmd, SPEED_20000);
370 		break;
371 	case I40E_LINK_SPEED_10GB:
372 		ethtool_cmd_speed_set(ecmd, SPEED_10000);
373 		break;
374 	case I40E_LINK_SPEED_1GB:
375 		ethtool_cmd_speed_set(ecmd, SPEED_1000);
376 		break;
377 	case I40E_LINK_SPEED_100MB:
378 		ethtool_cmd_speed_set(ecmd, SPEED_100);
379 		break;
380 	default:
381 		break;
382 	}
383 	ecmd->duplex = DUPLEX_FULL;
384 }
385 
386 /**
387  * i40e_get_settings_link_down - Get the Link settings for when link is down
388  * @hw: hw structure
389  * @ecmd: ethtool command to fill in
390  *
391  * Reports link settings that can be determined when link is down
392  **/
393 static void i40e_get_settings_link_down(struct i40e_hw *hw,
394 					struct ethtool_cmd *ecmd,
395 					struct i40e_pf *pf)
396 {
397 	enum i40e_aq_capabilities_phy_type phy_types = hw->phy.phy_types;
398 
399 	/* link is down and the driver needs to fall back on
400 	 * supported phy types to figure out what info to display
401 	 */
402 	ecmd->supported = 0x0;
403 	ecmd->advertising = 0x0;
404 	if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
405 		ecmd->supported |= SUPPORTED_Autoneg |
406 				   SUPPORTED_1000baseT_Full;
407 		ecmd->advertising |= ADVERTISED_Autoneg |
408 				     ADVERTISED_1000baseT_Full;
409 		if (pf->hw.mac.type == I40E_MAC_X722) {
410 			ecmd->supported |= SUPPORTED_100baseT_Full;
411 			ecmd->advertising |= ADVERTISED_100baseT_Full;
412 		}
413 	}
414 	if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
415 	    phy_types & I40E_CAP_PHY_TYPE_XFI ||
416 	    phy_types & I40E_CAP_PHY_TYPE_SFI ||
417 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
418 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC)
419 		ecmd->supported |= SUPPORTED_10000baseT_Full;
420 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
421 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
422 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
423 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
424 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
425 		ecmd->supported |= SUPPORTED_Autoneg |
426 				   SUPPORTED_10000baseT_Full;
427 		ecmd->advertising |= ADVERTISED_Autoneg |
428 				     ADVERTISED_10000baseT_Full;
429 	}
430 	if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
431 	    phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
432 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
433 		ecmd->supported |= SUPPORTED_40000baseCR4_Full;
434 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
435 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
436 		ecmd->supported |= SUPPORTED_Autoneg |
437 				  SUPPORTED_40000baseCR4_Full;
438 		ecmd->advertising |= ADVERTISED_Autoneg |
439 				    ADVERTISED_40000baseCR4_Full;
440 	}
441 	if ((phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) &&
442 	    !(phy_types & I40E_CAP_PHY_TYPE_1000BASE_T)) {
443 		ecmd->supported |= SUPPORTED_Autoneg |
444 				   SUPPORTED_100baseT_Full;
445 		ecmd->advertising |= ADVERTISED_Autoneg |
446 				     ADVERTISED_100baseT_Full;
447 	}
448 	if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
449 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
450 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
451 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
452 		ecmd->supported |= SUPPORTED_Autoneg |
453 				   SUPPORTED_1000baseT_Full;
454 		ecmd->advertising |= ADVERTISED_Autoneg |
455 				     ADVERTISED_1000baseT_Full;
456 	}
457 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
458 		ecmd->supported |= SUPPORTED_40000baseSR4_Full;
459 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
460 		ecmd->supported |= SUPPORTED_40000baseLR4_Full;
461 
462 	/* With no link speed and duplex are unknown */
463 	ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
464 	ecmd->duplex = DUPLEX_UNKNOWN;
465 }
466 
467 /**
468  * i40e_get_settings - Get Link Speed and Duplex settings
469  * @netdev: network interface device structure
470  * @ecmd: ethtool command
471  *
472  * Reports speed/duplex settings based on media_type
473  **/
474 static int i40e_get_settings(struct net_device *netdev,
475 			     struct ethtool_cmd *ecmd)
476 {
477 	struct i40e_netdev_priv *np = netdev_priv(netdev);
478 	struct i40e_pf *pf = np->vsi->back;
479 	struct i40e_hw *hw = &pf->hw;
480 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
481 	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
482 
483 	if (link_up)
484 		i40e_get_settings_link_up(hw, ecmd, netdev, pf);
485 	else
486 		i40e_get_settings_link_down(hw, ecmd, pf);
487 
488 	/* Now set the settings that don't rely on link being up/down */
489 
490 	/* For backplane, supported and advertised are only reliant on the
491 	 * phy types the NVM specifies are supported.
492 	 */
493 	if (hw->device_id == I40E_DEV_ID_KX_B ||
494 	    hw->device_id == I40E_DEV_ID_KX_C ||
495 	    hw->device_id == I40E_DEV_ID_20G_KR2 ||
496 	    hw->device_id ==  I40E_DEV_ID_20G_KR2_A) {
497 		ecmd->supported = SUPPORTED_Autoneg;
498 		ecmd->advertising = ADVERTISED_Autoneg;
499 		if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
500 			ecmd->supported |= SUPPORTED_40000baseKR4_Full;
501 			ecmd->advertising |= ADVERTISED_40000baseKR4_Full;
502 		}
503 		if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
504 			ecmd->supported |= SUPPORTED_20000baseKR2_Full;
505 			ecmd->advertising |= ADVERTISED_20000baseKR2_Full;
506 		}
507 		if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
508 			ecmd->supported |= SUPPORTED_10000baseKR_Full;
509 			ecmd->advertising |= ADVERTISED_10000baseKR_Full;
510 		}
511 		if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
512 			ecmd->supported |= SUPPORTED_10000baseKX4_Full;
513 			ecmd->advertising |= ADVERTISED_10000baseKX4_Full;
514 		}
515 		if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
516 			ecmd->supported |= SUPPORTED_1000baseKX_Full;
517 			ecmd->advertising |= ADVERTISED_1000baseKX_Full;
518 		}
519 	}
520 
521 	/* Set autoneg settings */
522 	ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
523 			  AUTONEG_ENABLE : AUTONEG_DISABLE);
524 
525 	switch (hw->phy.media_type) {
526 	case I40E_MEDIA_TYPE_BACKPLANE:
527 		ecmd->supported |= SUPPORTED_Autoneg |
528 				   SUPPORTED_Backplane;
529 		ecmd->advertising |= ADVERTISED_Autoneg |
530 				     ADVERTISED_Backplane;
531 		ecmd->port = PORT_NONE;
532 		break;
533 	case I40E_MEDIA_TYPE_BASET:
534 		ecmd->supported |= SUPPORTED_TP;
535 		ecmd->advertising |= ADVERTISED_TP;
536 		ecmd->port = PORT_TP;
537 		break;
538 	case I40E_MEDIA_TYPE_DA:
539 	case I40E_MEDIA_TYPE_CX4:
540 		ecmd->supported |= SUPPORTED_FIBRE;
541 		ecmd->advertising |= ADVERTISED_FIBRE;
542 		ecmd->port = PORT_DA;
543 		break;
544 	case I40E_MEDIA_TYPE_FIBER:
545 		ecmd->supported |= SUPPORTED_FIBRE;
546 		ecmd->port = PORT_FIBRE;
547 		break;
548 	case I40E_MEDIA_TYPE_UNKNOWN:
549 	default:
550 		ecmd->port = PORT_OTHER;
551 		break;
552 	}
553 
554 	/* Set transceiver */
555 	ecmd->transceiver = XCVR_EXTERNAL;
556 
557 	/* Set flow control settings */
558 	ecmd->supported |= SUPPORTED_Pause;
559 
560 	switch (hw->fc.requested_mode) {
561 	case I40E_FC_FULL:
562 		ecmd->advertising |= ADVERTISED_Pause;
563 		break;
564 	case I40E_FC_TX_PAUSE:
565 		ecmd->advertising |= ADVERTISED_Asym_Pause;
566 		break;
567 	case I40E_FC_RX_PAUSE:
568 		ecmd->advertising |= (ADVERTISED_Pause |
569 				      ADVERTISED_Asym_Pause);
570 		break;
571 	default:
572 		ecmd->advertising &= ~(ADVERTISED_Pause |
573 				       ADVERTISED_Asym_Pause);
574 		break;
575 	}
576 
577 	return 0;
578 }
579 
580 /**
581  * i40e_set_settings - Set Speed and Duplex
582  * @netdev: network interface device structure
583  * @ecmd: ethtool command
584  *
585  * Set speed/duplex per media_types advertised/forced
586  **/
587 static int i40e_set_settings(struct net_device *netdev,
588 			     struct ethtool_cmd *ecmd)
589 {
590 	struct i40e_netdev_priv *np = netdev_priv(netdev);
591 	struct i40e_aq_get_phy_abilities_resp abilities;
592 	struct i40e_aq_set_phy_config config;
593 	struct i40e_pf *pf = np->vsi->back;
594 	struct i40e_vsi *vsi = np->vsi;
595 	struct i40e_hw *hw = &pf->hw;
596 	struct ethtool_cmd safe_ecmd;
597 	i40e_status status = 0;
598 	bool change = false;
599 	int err = 0;
600 	u8 autoneg;
601 	u32 advertise;
602 
603 	/* Changing port settings is not supported if this isn't the
604 	 * port's controlling PF
605 	 */
606 	if (hw->partition_id != 1) {
607 		i40e_partition_setting_complaint(pf);
608 		return -EOPNOTSUPP;
609 	}
610 
611 	if (vsi != pf->vsi[pf->lan_vsi])
612 		return -EOPNOTSUPP;
613 
614 	if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
615 	    hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
616 	    hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
617 	    hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
618 		return -EOPNOTSUPP;
619 
620 	if (hw->device_id == I40E_DEV_ID_KX_B ||
621 	    hw->device_id == I40E_DEV_ID_KX_C ||
622 	    hw->device_id == I40E_DEV_ID_20G_KR2 ||
623 	    hw->device_id == I40E_DEV_ID_20G_KR2_A) {
624 		netdev_info(netdev, "Changing settings is not supported on backplane.\n");
625 		return -EOPNOTSUPP;
626 	}
627 
628 	/* get our own copy of the bits to check against */
629 	memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
630 	i40e_get_settings(netdev, &safe_ecmd);
631 
632 	/* save autoneg and speed out of ecmd */
633 	autoneg = ecmd->autoneg;
634 	advertise = ecmd->advertising;
635 
636 	/* set autoneg and speed back to what they currently are */
637 	ecmd->autoneg = safe_ecmd.autoneg;
638 	ecmd->advertising = safe_ecmd.advertising;
639 
640 	ecmd->cmd = safe_ecmd.cmd;
641 	/* If ecmd and safe_ecmd are not the same now, then they are
642 	 * trying to set something that we do not support
643 	 */
644 	if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
645 		return -EOPNOTSUPP;
646 
647 	while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
648 		usleep_range(1000, 2000);
649 
650 	/* Get the current phy config */
651 	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
652 					      NULL);
653 	if (status)
654 		return -EAGAIN;
655 
656 	/* Copy abilities to config in case autoneg is not
657 	 * set below
658 	 */
659 	memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
660 	config.abilities = abilities.abilities;
661 
662 	/* Check autoneg */
663 	if (autoneg == AUTONEG_ENABLE) {
664 		/* If autoneg was not already enabled */
665 		if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
666 			/* If autoneg is not supported, return error */
667 			if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
668 				netdev_info(netdev, "Autoneg not supported on this phy\n");
669 				return -EINVAL;
670 			}
671 			/* Autoneg is allowed to change */
672 			config.abilities = abilities.abilities |
673 					   I40E_AQ_PHY_ENABLE_AN;
674 			change = true;
675 		}
676 	} else {
677 		/* If autoneg is currently enabled */
678 		if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
679 			/* If autoneg is supported 10GBASE_T is the only PHY
680 			 * that can disable it, so otherwise return error
681 			 */
682 			if (safe_ecmd.supported & SUPPORTED_Autoneg &&
683 			    hw->phy.link_info.phy_type !=
684 			    I40E_PHY_TYPE_10GBASE_T) {
685 				netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
686 				return -EINVAL;
687 			}
688 			/* Autoneg is allowed to change */
689 			config.abilities = abilities.abilities &
690 					   ~I40E_AQ_PHY_ENABLE_AN;
691 			change = true;
692 		}
693 	}
694 
695 	if (advertise & ~safe_ecmd.supported)
696 		return -EINVAL;
697 
698 	if (advertise & ADVERTISED_100baseT_Full)
699 		config.link_speed |= I40E_LINK_SPEED_100MB;
700 	if (advertise & ADVERTISED_1000baseT_Full ||
701 	    advertise & ADVERTISED_1000baseKX_Full)
702 		config.link_speed |= I40E_LINK_SPEED_1GB;
703 	if (advertise & ADVERTISED_10000baseT_Full ||
704 	    advertise & ADVERTISED_10000baseKX4_Full ||
705 	    advertise & ADVERTISED_10000baseKR_Full)
706 		config.link_speed |= I40E_LINK_SPEED_10GB;
707 	if (advertise & ADVERTISED_20000baseKR2_Full)
708 		config.link_speed |= I40E_LINK_SPEED_20GB;
709 	if (advertise & ADVERTISED_40000baseKR4_Full ||
710 	    advertise & ADVERTISED_40000baseCR4_Full ||
711 	    advertise & ADVERTISED_40000baseSR4_Full ||
712 	    advertise & ADVERTISED_40000baseLR4_Full)
713 		config.link_speed |= I40E_LINK_SPEED_40GB;
714 
715 	/* If speed didn't get set, set it to what it currently is.
716 	 * This is needed because if advertise is 0 (as it is when autoneg
717 	 * is disabled) then speed won't get set.
718 	 */
719 	if (!config.link_speed)
720 		config.link_speed = abilities.link_speed;
721 
722 	if (change || (abilities.link_speed != config.link_speed)) {
723 		/* copy over the rest of the abilities */
724 		config.phy_type = abilities.phy_type;
725 		config.eee_capability = abilities.eee_capability;
726 		config.eeer = abilities.eeer_val;
727 		config.low_power_ctrl = abilities.d3_lpan;
728 
729 		/* save the requested speeds */
730 		hw->phy.link_info.requested_speeds = config.link_speed;
731 		/* set link and auto negotiation so changes take effect */
732 		config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
733 		/* If link is up put link down */
734 		if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
735 			/* Tell the OS link is going down, the link will go
736 			 * back up when fw says it is ready asynchronously
737 			 */
738 			i40e_print_link_message(vsi, false);
739 			netif_carrier_off(netdev);
740 			netif_tx_stop_all_queues(netdev);
741 		}
742 
743 		/* make the aq call */
744 		status = i40e_aq_set_phy_config(hw, &config, NULL);
745 		if (status) {
746 			netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
747 				    i40e_stat_str(hw, status),
748 				    i40e_aq_str(hw, hw->aq.asq_last_status));
749 			return -EAGAIN;
750 		}
751 
752 		status = i40e_update_link_info(hw);
753 		if (status)
754 			netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n",
755 				   i40e_stat_str(hw, status),
756 				   i40e_aq_str(hw, hw->aq.asq_last_status));
757 
758 	} else {
759 		netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
760 	}
761 
762 	return err;
763 }
764 
765 static int i40e_nway_reset(struct net_device *netdev)
766 {
767 	/* restart autonegotiation */
768 	struct i40e_netdev_priv *np = netdev_priv(netdev);
769 	struct i40e_pf *pf = np->vsi->back;
770 	struct i40e_hw *hw = &pf->hw;
771 	bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
772 	i40e_status ret = 0;
773 
774 	ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
775 	if (ret) {
776 		netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
777 			    i40e_stat_str(hw, ret),
778 			    i40e_aq_str(hw, hw->aq.asq_last_status));
779 		return -EIO;
780 	}
781 
782 	return 0;
783 }
784 
785 /**
786  * i40e_get_pauseparam -  Get Flow Control status
787  * Return tx/rx-pause status
788  **/
789 static void i40e_get_pauseparam(struct net_device *netdev,
790 				struct ethtool_pauseparam *pause)
791 {
792 	struct i40e_netdev_priv *np = netdev_priv(netdev);
793 	struct i40e_pf *pf = np->vsi->back;
794 	struct i40e_hw *hw = &pf->hw;
795 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
796 	struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
797 
798 	pause->autoneg =
799 		((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
800 		  AUTONEG_ENABLE : AUTONEG_DISABLE);
801 
802 	/* PFC enabled so report LFC as off */
803 	if (dcbx_cfg->pfc.pfcenable) {
804 		pause->rx_pause = 0;
805 		pause->tx_pause = 0;
806 		return;
807 	}
808 
809 	if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
810 		pause->rx_pause = 1;
811 	} else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
812 		pause->tx_pause = 1;
813 	} else if (hw->fc.current_mode == I40E_FC_FULL) {
814 		pause->rx_pause = 1;
815 		pause->tx_pause = 1;
816 	}
817 }
818 
819 /**
820  * i40e_set_pauseparam - Set Flow Control parameter
821  * @netdev: network interface device structure
822  * @pause: return tx/rx flow control status
823  **/
824 static int i40e_set_pauseparam(struct net_device *netdev,
825 			       struct ethtool_pauseparam *pause)
826 {
827 	struct i40e_netdev_priv *np = netdev_priv(netdev);
828 	struct i40e_pf *pf = np->vsi->back;
829 	struct i40e_vsi *vsi = np->vsi;
830 	struct i40e_hw *hw = &pf->hw;
831 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
832 	struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
833 	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
834 	i40e_status status;
835 	u8 aq_failures;
836 	int err = 0;
837 
838 	/* Changing the port's flow control is not supported if this isn't the
839 	 * port's controlling PF
840 	 */
841 	if (hw->partition_id != 1) {
842 		i40e_partition_setting_complaint(pf);
843 		return -EOPNOTSUPP;
844 	}
845 
846 	if (vsi != pf->vsi[pf->lan_vsi])
847 		return -EOPNOTSUPP;
848 
849 	if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
850 	    AUTONEG_ENABLE : AUTONEG_DISABLE)) {
851 		netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
852 		return -EOPNOTSUPP;
853 	}
854 
855 	/* If we have link and don't have autoneg */
856 	if (!test_bit(__I40E_DOWN, &pf->state) &&
857 	    !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
858 		/* Send message that it might not necessarily work*/
859 		netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
860 	}
861 
862 	if (dcbx_cfg->pfc.pfcenable) {
863 		netdev_info(netdev,
864 			    "Priority flow control enabled. Cannot set link flow control.\n");
865 		return -EOPNOTSUPP;
866 	}
867 
868 	if (pause->rx_pause && pause->tx_pause)
869 		hw->fc.requested_mode = I40E_FC_FULL;
870 	else if (pause->rx_pause && !pause->tx_pause)
871 		hw->fc.requested_mode = I40E_FC_RX_PAUSE;
872 	else if (!pause->rx_pause && pause->tx_pause)
873 		hw->fc.requested_mode = I40E_FC_TX_PAUSE;
874 	else if (!pause->rx_pause && !pause->tx_pause)
875 		hw->fc.requested_mode = I40E_FC_NONE;
876 	else
877 		 return -EINVAL;
878 
879 	/* Tell the OS link is going down, the link will go back up when fw
880 	 * says it is ready asynchronously
881 	 */
882 	i40e_print_link_message(vsi, false);
883 	netif_carrier_off(netdev);
884 	netif_tx_stop_all_queues(netdev);
885 
886 	/* Set the fc mode and only restart an if link is up*/
887 	status = i40e_set_fc(hw, &aq_failures, link_up);
888 
889 	if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
890 		netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
891 			    i40e_stat_str(hw, status),
892 			    i40e_aq_str(hw, hw->aq.asq_last_status));
893 		err = -EAGAIN;
894 	}
895 	if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
896 		netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
897 			    i40e_stat_str(hw, status),
898 			    i40e_aq_str(hw, hw->aq.asq_last_status));
899 		err = -EAGAIN;
900 	}
901 	if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
902 		netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
903 			    i40e_stat_str(hw, status),
904 			    i40e_aq_str(hw, hw->aq.asq_last_status));
905 		err = -EAGAIN;
906 	}
907 
908 	if (!test_bit(__I40E_DOWN, &pf->state)) {
909 		/* Give it a little more time to try to come back */
910 		msleep(75);
911 		if (!test_bit(__I40E_DOWN, &pf->state))
912 			return i40e_nway_reset(netdev);
913 	}
914 
915 	return err;
916 }
917 
918 static u32 i40e_get_msglevel(struct net_device *netdev)
919 {
920 	struct i40e_netdev_priv *np = netdev_priv(netdev);
921 	struct i40e_pf *pf = np->vsi->back;
922 
923 	return pf->msg_enable;
924 }
925 
926 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
927 {
928 	struct i40e_netdev_priv *np = netdev_priv(netdev);
929 	struct i40e_pf *pf = np->vsi->back;
930 
931 	if (I40E_DEBUG_USER & data)
932 		pf->hw.debug_mask = data;
933 	pf->msg_enable = data;
934 }
935 
936 static int i40e_get_regs_len(struct net_device *netdev)
937 {
938 	int reg_count = 0;
939 	int i;
940 
941 	for (i = 0; i40e_reg_list[i].offset != 0; i++)
942 		reg_count += i40e_reg_list[i].elements;
943 
944 	return reg_count * sizeof(u32);
945 }
946 
947 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
948 			  void *p)
949 {
950 	struct i40e_netdev_priv *np = netdev_priv(netdev);
951 	struct i40e_pf *pf = np->vsi->back;
952 	struct i40e_hw *hw = &pf->hw;
953 	u32 *reg_buf = p;
954 	int i, j, ri;
955 	u32 reg;
956 
957 	/* Tell ethtool which driver-version-specific regs output we have.
958 	 *
959 	 * At some point, if we have ethtool doing special formatting of
960 	 * this data, it will rely on this version number to know how to
961 	 * interpret things.  Hence, this needs to be updated if/when the
962 	 * diags register table is changed.
963 	 */
964 	regs->version = 1;
965 
966 	/* loop through the diags reg table for what to print */
967 	ri = 0;
968 	for (i = 0; i40e_reg_list[i].offset != 0; i++) {
969 		for (j = 0; j < i40e_reg_list[i].elements; j++) {
970 			reg = i40e_reg_list[i].offset
971 				+ (j * i40e_reg_list[i].stride);
972 			reg_buf[ri++] = rd32(hw, reg);
973 		}
974 	}
975 
976 }
977 
978 static int i40e_get_eeprom(struct net_device *netdev,
979 			   struct ethtool_eeprom *eeprom, u8 *bytes)
980 {
981 	struct i40e_netdev_priv *np = netdev_priv(netdev);
982 	struct i40e_hw *hw = &np->vsi->back->hw;
983 	struct i40e_pf *pf = np->vsi->back;
984 	int ret_val = 0, len, offset;
985 	u8 *eeprom_buff;
986 	u16 i, sectors;
987 	bool last;
988 	u32 magic;
989 
990 #define I40E_NVM_SECTOR_SIZE  4096
991 	if (eeprom->len == 0)
992 		return -EINVAL;
993 
994 	/* check for NVMUpdate access method */
995 	magic = hw->vendor_id | (hw->device_id << 16);
996 	if (eeprom->magic && eeprom->magic != magic) {
997 		struct i40e_nvm_access *cmd;
998 		int errno;
999 
1000 		/* make sure it is the right magic for NVMUpdate */
1001 		if ((eeprom->magic >> 16) != hw->device_id)
1002 			return -EINVAL;
1003 
1004 		cmd = (struct i40e_nvm_access *)eeprom;
1005 		ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1006 		if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1007 			dev_info(&pf->pdev->dev,
1008 				 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1009 				 ret_val, hw->aq.asq_last_status, errno,
1010 				 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1011 				 cmd->offset, cmd->data_size);
1012 
1013 		return errno;
1014 	}
1015 
1016 	/* normal ethtool get_eeprom support */
1017 	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1018 
1019 	eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1020 	if (!eeprom_buff)
1021 		return -ENOMEM;
1022 
1023 	ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1024 	if (ret_val) {
1025 		dev_info(&pf->pdev->dev,
1026 			 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1027 			 ret_val, hw->aq.asq_last_status);
1028 		goto free_buff;
1029 	}
1030 
1031 	sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1032 	sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1033 	len = I40E_NVM_SECTOR_SIZE;
1034 	last = false;
1035 	for (i = 0; i < sectors; i++) {
1036 		if (i == (sectors - 1)) {
1037 			len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1038 			last = true;
1039 		}
1040 		offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1041 		ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1042 				(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1043 				last, NULL);
1044 		if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1045 			dev_info(&pf->pdev->dev,
1046 				 "read NVM failed, invalid offset 0x%x\n",
1047 				 offset);
1048 			break;
1049 		} else if (ret_val &&
1050 			   hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1051 			dev_info(&pf->pdev->dev,
1052 				 "read NVM failed, access, offset 0x%x\n",
1053 				 offset);
1054 			break;
1055 		} else if (ret_val) {
1056 			dev_info(&pf->pdev->dev,
1057 				 "read NVM failed offset %d err=%d status=0x%x\n",
1058 				 offset, ret_val, hw->aq.asq_last_status);
1059 			break;
1060 		}
1061 	}
1062 
1063 	i40e_release_nvm(hw);
1064 	memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1065 free_buff:
1066 	kfree(eeprom_buff);
1067 	return ret_val;
1068 }
1069 
1070 static int i40e_get_eeprom_len(struct net_device *netdev)
1071 {
1072 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1073 	struct i40e_hw *hw = &np->vsi->back->hw;
1074 	u32 val;
1075 
1076 	val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1077 		& I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1078 		>> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1079 	/* register returns value in power of 2, 64Kbyte chunks. */
1080 	val = (64 * 1024) * BIT(val);
1081 	return val;
1082 }
1083 
1084 static int i40e_set_eeprom(struct net_device *netdev,
1085 			   struct ethtool_eeprom *eeprom, u8 *bytes)
1086 {
1087 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1088 	struct i40e_hw *hw = &np->vsi->back->hw;
1089 	struct i40e_pf *pf = np->vsi->back;
1090 	struct i40e_nvm_access *cmd;
1091 	int ret_val = 0;
1092 	int errno;
1093 	u32 magic;
1094 
1095 	/* normal ethtool set_eeprom is not supported */
1096 	magic = hw->vendor_id | (hw->device_id << 16);
1097 	if (eeprom->magic == magic)
1098 		return -EOPNOTSUPP;
1099 
1100 	/* check for NVMUpdate access method */
1101 	if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1102 		return -EINVAL;
1103 
1104 	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1105 	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1106 		return -EBUSY;
1107 
1108 	cmd = (struct i40e_nvm_access *)eeprom;
1109 	ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1110 	if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1111 		dev_info(&pf->pdev->dev,
1112 			 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1113 			 ret_val, hw->aq.asq_last_status, errno,
1114 			 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1115 			 cmd->offset, cmd->data_size);
1116 
1117 	return errno;
1118 }
1119 
1120 static void i40e_get_drvinfo(struct net_device *netdev,
1121 			     struct ethtool_drvinfo *drvinfo)
1122 {
1123 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1124 	struct i40e_vsi *vsi = np->vsi;
1125 	struct i40e_pf *pf = vsi->back;
1126 
1127 	strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1128 	strlcpy(drvinfo->version, i40e_driver_version_str,
1129 		sizeof(drvinfo->version));
1130 	strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1131 		sizeof(drvinfo->fw_version));
1132 	strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1133 		sizeof(drvinfo->bus_info));
1134 }
1135 
1136 static void i40e_get_ringparam(struct net_device *netdev,
1137 			       struct ethtool_ringparam *ring)
1138 {
1139 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1140 	struct i40e_pf *pf = np->vsi->back;
1141 	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1142 
1143 	ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1144 	ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1145 	ring->rx_mini_max_pending = 0;
1146 	ring->rx_jumbo_max_pending = 0;
1147 	ring->rx_pending = vsi->rx_rings[0]->count;
1148 	ring->tx_pending = vsi->tx_rings[0]->count;
1149 	ring->rx_mini_pending = 0;
1150 	ring->rx_jumbo_pending = 0;
1151 }
1152 
1153 static int i40e_set_ringparam(struct net_device *netdev,
1154 			      struct ethtool_ringparam *ring)
1155 {
1156 	struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1157 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1158 	struct i40e_vsi *vsi = np->vsi;
1159 	struct i40e_pf *pf = vsi->back;
1160 	u32 new_rx_count, new_tx_count;
1161 	int i, err = 0;
1162 
1163 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1164 		return -EINVAL;
1165 
1166 	if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1167 	    ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1168 	    ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1169 	    ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1170 		netdev_info(netdev,
1171 			    "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1172 			    ring->tx_pending, ring->rx_pending,
1173 			    I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1174 		return -EINVAL;
1175 	}
1176 
1177 	new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1178 	new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1179 
1180 	/* if nothing to do return success */
1181 	if ((new_tx_count == vsi->tx_rings[0]->count) &&
1182 	    (new_rx_count == vsi->rx_rings[0]->count))
1183 		return 0;
1184 
1185 	while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1186 		usleep_range(1000, 2000);
1187 
1188 	if (!netif_running(vsi->netdev)) {
1189 		/* simple case - set for the next time the netdev is started */
1190 		for (i = 0; i < vsi->num_queue_pairs; i++) {
1191 			vsi->tx_rings[i]->count = new_tx_count;
1192 			vsi->rx_rings[i]->count = new_rx_count;
1193 		}
1194 		goto done;
1195 	}
1196 
1197 	/* We can't just free everything and then setup again,
1198 	 * because the ISRs in MSI-X mode get passed pointers
1199 	 * to the Tx and Rx ring structs.
1200 	 */
1201 
1202 	/* alloc updated Tx resources */
1203 	if (new_tx_count != vsi->tx_rings[0]->count) {
1204 		netdev_info(netdev,
1205 			    "Changing Tx descriptor count from %d to %d.\n",
1206 			    vsi->tx_rings[0]->count, new_tx_count);
1207 		tx_rings = kcalloc(vsi->alloc_queue_pairs,
1208 				   sizeof(struct i40e_ring), GFP_KERNEL);
1209 		if (!tx_rings) {
1210 			err = -ENOMEM;
1211 			goto done;
1212 		}
1213 
1214 		for (i = 0; i < vsi->num_queue_pairs; i++) {
1215 			/* clone ring and setup updated count */
1216 			tx_rings[i] = *vsi->tx_rings[i];
1217 			tx_rings[i].count = new_tx_count;
1218 			/* the desc and bi pointers will be reallocated in the
1219 			 * setup call
1220 			 */
1221 			tx_rings[i].desc = NULL;
1222 			tx_rings[i].rx_bi = NULL;
1223 			err = i40e_setup_tx_descriptors(&tx_rings[i]);
1224 			if (err) {
1225 				while (i) {
1226 					i--;
1227 					i40e_free_tx_resources(&tx_rings[i]);
1228 				}
1229 				kfree(tx_rings);
1230 				tx_rings = NULL;
1231 
1232 				goto done;
1233 			}
1234 		}
1235 	}
1236 
1237 	/* alloc updated Rx resources */
1238 	if (new_rx_count != vsi->rx_rings[0]->count) {
1239 		netdev_info(netdev,
1240 			    "Changing Rx descriptor count from %d to %d\n",
1241 			    vsi->rx_rings[0]->count, new_rx_count);
1242 		rx_rings = kcalloc(vsi->alloc_queue_pairs,
1243 				   sizeof(struct i40e_ring), GFP_KERNEL);
1244 		if (!rx_rings) {
1245 			err = -ENOMEM;
1246 			goto free_tx;
1247 		}
1248 
1249 		for (i = 0; i < vsi->num_queue_pairs; i++) {
1250 			/* clone ring and setup updated count */
1251 			rx_rings[i] = *vsi->rx_rings[i];
1252 			rx_rings[i].count = new_rx_count;
1253 			/* the desc and bi pointers will be reallocated in the
1254 			 * setup call
1255 			 */
1256 			rx_rings[i].desc = NULL;
1257 			rx_rings[i].rx_bi = NULL;
1258 			err = i40e_setup_rx_descriptors(&rx_rings[i]);
1259 			if (err) {
1260 				while (i) {
1261 					i--;
1262 					i40e_free_rx_resources(&rx_rings[i]);
1263 				}
1264 				kfree(rx_rings);
1265 				rx_rings = NULL;
1266 
1267 				goto free_tx;
1268 			}
1269 		}
1270 	}
1271 
1272 	/* Bring interface down, copy in the new ring info,
1273 	 * then restore the interface
1274 	 */
1275 	i40e_down(vsi);
1276 
1277 	if (tx_rings) {
1278 		for (i = 0; i < vsi->num_queue_pairs; i++) {
1279 			i40e_free_tx_resources(vsi->tx_rings[i]);
1280 			*vsi->tx_rings[i] = tx_rings[i];
1281 		}
1282 		kfree(tx_rings);
1283 		tx_rings = NULL;
1284 	}
1285 
1286 	if (rx_rings) {
1287 		for (i = 0; i < vsi->num_queue_pairs; i++) {
1288 			i40e_free_rx_resources(vsi->rx_rings[i]);
1289 			*vsi->rx_rings[i] = rx_rings[i];
1290 		}
1291 		kfree(rx_rings);
1292 		rx_rings = NULL;
1293 	}
1294 
1295 	i40e_up(vsi);
1296 
1297 free_tx:
1298 	/* error cleanup if the Rx allocations failed after getting Tx */
1299 	if (tx_rings) {
1300 		for (i = 0; i < vsi->num_queue_pairs; i++)
1301 			i40e_free_tx_resources(&tx_rings[i]);
1302 		kfree(tx_rings);
1303 		tx_rings = NULL;
1304 	}
1305 
1306 done:
1307 	clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1308 
1309 	return err;
1310 }
1311 
1312 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1313 {
1314 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1315 	struct i40e_vsi *vsi = np->vsi;
1316 	struct i40e_pf *pf = vsi->back;
1317 
1318 	switch (sset) {
1319 	case ETH_SS_TEST:
1320 		return I40E_TEST_LEN;
1321 	case ETH_SS_STATS:
1322 		if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1323 			int len = I40E_PF_STATS_LEN(netdev);
1324 
1325 			if ((pf->lan_veb != I40E_NO_VEB) &&
1326 			    (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1327 				len += I40E_VEB_STATS_TOTAL;
1328 			return len;
1329 		} else {
1330 			return I40E_VSI_STATS_LEN(netdev);
1331 		}
1332 	case ETH_SS_PRIV_FLAGS:
1333 		return I40E_PRIV_FLAGS_STR_LEN;
1334 	default:
1335 		return -EOPNOTSUPP;
1336 	}
1337 }
1338 
1339 static void i40e_get_ethtool_stats(struct net_device *netdev,
1340 				   struct ethtool_stats *stats, u64 *data)
1341 {
1342 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1343 	struct i40e_ring *tx_ring, *rx_ring;
1344 	struct i40e_vsi *vsi = np->vsi;
1345 	struct i40e_pf *pf = vsi->back;
1346 	int i = 0;
1347 	char *p;
1348 	int j;
1349 	struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1350 	unsigned int start;
1351 
1352 	i40e_update_stats(vsi);
1353 
1354 	for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1355 		p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1356 		data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1357 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1358 	}
1359 	for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1360 		p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1361 		data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1362 			    sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1363 	}
1364 #ifdef I40E_FCOE
1365 	for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1366 		p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1367 		data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1368 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1369 	}
1370 #endif
1371 	rcu_read_lock();
1372 	for (j = 0; j < vsi->num_queue_pairs; j++) {
1373 		tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1374 
1375 		if (!tx_ring)
1376 			continue;
1377 
1378 		/* process Tx ring statistics */
1379 		do {
1380 			start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1381 			data[i] = tx_ring->stats.packets;
1382 			data[i + 1] = tx_ring->stats.bytes;
1383 		} while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1384 		i += 2;
1385 
1386 		/* Rx ring is the 2nd half of the queue pair */
1387 		rx_ring = &tx_ring[1];
1388 		do {
1389 			start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1390 			data[i] = rx_ring->stats.packets;
1391 			data[i + 1] = rx_ring->stats.bytes;
1392 		} while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1393 		i += 2;
1394 	}
1395 	rcu_read_unlock();
1396 	if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1397 		return;
1398 
1399 	if ((pf->lan_veb != I40E_NO_VEB) &&
1400 	    (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1401 		struct i40e_veb *veb = pf->veb[pf->lan_veb];
1402 
1403 		for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1404 			p = (char *)veb;
1405 			p += i40e_gstrings_veb_stats[j].stat_offset;
1406 			data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1407 				     sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1408 		}
1409 		for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1410 			data[i++] = veb->tc_stats.tc_tx_packets[j];
1411 			data[i++] = veb->tc_stats.tc_tx_bytes[j];
1412 			data[i++] = veb->tc_stats.tc_rx_packets[j];
1413 			data[i++] = veb->tc_stats.tc_rx_bytes[j];
1414 		}
1415 	}
1416 	for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1417 		p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1418 		data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1419 			     sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1420 	}
1421 	for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1422 		data[i++] = pf->stats.priority_xon_tx[j];
1423 		data[i++] = pf->stats.priority_xoff_tx[j];
1424 	}
1425 	for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1426 		data[i++] = pf->stats.priority_xon_rx[j];
1427 		data[i++] = pf->stats.priority_xoff_rx[j];
1428 	}
1429 	for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1430 		data[i++] = pf->stats.priority_xon_2_xoff[j];
1431 }
1432 
1433 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1434 			     u8 *data)
1435 {
1436 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1437 	struct i40e_vsi *vsi = np->vsi;
1438 	struct i40e_pf *pf = vsi->back;
1439 	char *p = (char *)data;
1440 	int i;
1441 
1442 	switch (stringset) {
1443 	case ETH_SS_TEST:
1444 		for (i = 0; i < I40E_TEST_LEN; i++) {
1445 			memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1446 			data += ETH_GSTRING_LEN;
1447 		}
1448 		break;
1449 	case ETH_SS_STATS:
1450 		for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1451 			snprintf(p, ETH_GSTRING_LEN, "%s",
1452 				 i40e_gstrings_net_stats[i].stat_string);
1453 			p += ETH_GSTRING_LEN;
1454 		}
1455 		for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1456 			snprintf(p, ETH_GSTRING_LEN, "%s",
1457 				 i40e_gstrings_misc_stats[i].stat_string);
1458 			p += ETH_GSTRING_LEN;
1459 		}
1460 #ifdef I40E_FCOE
1461 		for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1462 			snprintf(p, ETH_GSTRING_LEN, "%s",
1463 				 i40e_gstrings_fcoe_stats[i].stat_string);
1464 			p += ETH_GSTRING_LEN;
1465 		}
1466 #endif
1467 		for (i = 0; i < vsi->num_queue_pairs; i++) {
1468 			snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1469 			p += ETH_GSTRING_LEN;
1470 			snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1471 			p += ETH_GSTRING_LEN;
1472 			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1473 			p += ETH_GSTRING_LEN;
1474 			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1475 			p += ETH_GSTRING_LEN;
1476 		}
1477 		if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1478 			return;
1479 
1480 		if ((pf->lan_veb != I40E_NO_VEB) &&
1481 		    (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1482 			for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1483 				snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1484 					i40e_gstrings_veb_stats[i].stat_string);
1485 				p += ETH_GSTRING_LEN;
1486 			}
1487 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1488 				snprintf(p, ETH_GSTRING_LEN,
1489 					 "veb.tc_%u_tx_packets", i);
1490 				p += ETH_GSTRING_LEN;
1491 				snprintf(p, ETH_GSTRING_LEN,
1492 					 "veb.tc_%u_tx_bytes", i);
1493 				p += ETH_GSTRING_LEN;
1494 				snprintf(p, ETH_GSTRING_LEN,
1495 					 "veb.tc_%u_rx_packets", i);
1496 				p += ETH_GSTRING_LEN;
1497 				snprintf(p, ETH_GSTRING_LEN,
1498 					 "veb.tc_%u_rx_bytes", i);
1499 				p += ETH_GSTRING_LEN;
1500 			}
1501 		}
1502 		for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1503 			snprintf(p, ETH_GSTRING_LEN, "port.%s",
1504 				 i40e_gstrings_stats[i].stat_string);
1505 			p += ETH_GSTRING_LEN;
1506 		}
1507 		for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1508 			snprintf(p, ETH_GSTRING_LEN,
1509 				 "port.tx_priority_%u_xon", i);
1510 			p += ETH_GSTRING_LEN;
1511 			snprintf(p, ETH_GSTRING_LEN,
1512 				 "port.tx_priority_%u_xoff", i);
1513 			p += ETH_GSTRING_LEN;
1514 		}
1515 		for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1516 			snprintf(p, ETH_GSTRING_LEN,
1517 				 "port.rx_priority_%u_xon", i);
1518 			p += ETH_GSTRING_LEN;
1519 			snprintf(p, ETH_GSTRING_LEN,
1520 				 "port.rx_priority_%u_xoff", i);
1521 			p += ETH_GSTRING_LEN;
1522 		}
1523 		for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1524 			snprintf(p, ETH_GSTRING_LEN,
1525 				 "port.rx_priority_%u_xon_2_xoff", i);
1526 			p += ETH_GSTRING_LEN;
1527 		}
1528 		/* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1529 		break;
1530 	case ETH_SS_PRIV_FLAGS:
1531 		for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1532 			memcpy(data, i40e_priv_flags_strings[i],
1533 			       ETH_GSTRING_LEN);
1534 			data += ETH_GSTRING_LEN;
1535 		}
1536 		break;
1537 	default:
1538 		break;
1539 	}
1540 }
1541 
1542 static int i40e_get_ts_info(struct net_device *dev,
1543 			    struct ethtool_ts_info *info)
1544 {
1545 	struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1546 
1547 	/* only report HW timestamping if PTP is enabled */
1548 	if (!(pf->flags & I40E_FLAG_PTP))
1549 		return ethtool_op_get_ts_info(dev, info);
1550 
1551 	info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1552 				SOF_TIMESTAMPING_RX_SOFTWARE |
1553 				SOF_TIMESTAMPING_SOFTWARE |
1554 				SOF_TIMESTAMPING_TX_HARDWARE |
1555 				SOF_TIMESTAMPING_RX_HARDWARE |
1556 				SOF_TIMESTAMPING_RAW_HARDWARE;
1557 
1558 	if (pf->ptp_clock)
1559 		info->phc_index = ptp_clock_index(pf->ptp_clock);
1560 	else
1561 		info->phc_index = -1;
1562 
1563 	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1564 
1565 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1566 			   BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1567 			   BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1568 
1569 	return 0;
1570 }
1571 
1572 static int i40e_link_test(struct net_device *netdev, u64 *data)
1573 {
1574 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1575 	struct i40e_pf *pf = np->vsi->back;
1576 	i40e_status status;
1577 	bool link_up = false;
1578 
1579 	netif_info(pf, hw, netdev, "link test\n");
1580 	status = i40e_get_link_status(&pf->hw, &link_up);
1581 	if (status) {
1582 		netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1583 		*data = 1;
1584 		return *data;
1585 	}
1586 
1587 	if (link_up)
1588 		*data = 0;
1589 	else
1590 		*data = 1;
1591 
1592 	return *data;
1593 }
1594 
1595 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1596 {
1597 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1598 	struct i40e_pf *pf = np->vsi->back;
1599 
1600 	netif_info(pf, hw, netdev, "register test\n");
1601 	*data = i40e_diag_reg_test(&pf->hw);
1602 
1603 	return *data;
1604 }
1605 
1606 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1607 {
1608 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1609 	struct i40e_pf *pf = np->vsi->back;
1610 
1611 	netif_info(pf, hw, netdev, "eeprom test\n");
1612 	*data = i40e_diag_eeprom_test(&pf->hw);
1613 
1614 	/* forcebly clear the NVM Update state machine */
1615 	pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1616 
1617 	return *data;
1618 }
1619 
1620 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1621 {
1622 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1623 	struct i40e_pf *pf = np->vsi->back;
1624 	u16 swc_old = pf->sw_int_count;
1625 
1626 	netif_info(pf, hw, netdev, "interrupt test\n");
1627 	wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1628 	     (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1629 	      I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1630 	      I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1631 	      I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1632 	      I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1633 	usleep_range(1000, 2000);
1634 	*data = (swc_old == pf->sw_int_count);
1635 
1636 	return *data;
1637 }
1638 
1639 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1640 {
1641 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1642 	struct i40e_pf *pf = np->vsi->back;
1643 
1644 	netif_info(pf, hw, netdev, "loopback test not implemented\n");
1645 	*data = 0;
1646 
1647 	return *data;
1648 }
1649 
1650 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1651 {
1652 	struct i40e_vf *vfs = pf->vf;
1653 	int i;
1654 
1655 	for (i = 0; i < pf->num_alloc_vfs; i++)
1656 		if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1657 			return true;
1658 	return false;
1659 }
1660 
1661 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1662 {
1663 	struct i40e_vsi **vsi = pf->vsi;
1664 	int i;
1665 
1666 	for (i = 0; i < pf->num_alloc_vsi; i++) {
1667 		if (!vsi[i])
1668 			continue;
1669 		if (vsi[i]->type == I40E_VSI_VMDQ2)
1670 			return true;
1671 	}
1672 
1673 	return false;
1674 }
1675 
1676 static void i40e_diag_test(struct net_device *netdev,
1677 			   struct ethtool_test *eth_test, u64 *data)
1678 {
1679 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1680 	bool if_running = netif_running(netdev);
1681 	struct i40e_pf *pf = np->vsi->back;
1682 
1683 	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1684 		/* Offline tests */
1685 		netif_info(pf, drv, netdev, "offline testing starting\n");
1686 
1687 		set_bit(__I40E_TESTING, &pf->state);
1688 
1689 		if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1690 			dev_warn(&pf->pdev->dev,
1691 				 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1692 			data[I40E_ETH_TEST_REG]		= 1;
1693 			data[I40E_ETH_TEST_EEPROM]	= 1;
1694 			data[I40E_ETH_TEST_INTR]	= 1;
1695 			data[I40E_ETH_TEST_LOOPBACK]	= 1;
1696 			data[I40E_ETH_TEST_LINK]	= 1;
1697 			eth_test->flags |= ETH_TEST_FL_FAILED;
1698 			clear_bit(__I40E_TESTING, &pf->state);
1699 			goto skip_ol_tests;
1700 		}
1701 
1702 		/* If the device is online then take it offline */
1703 		if (if_running)
1704 			/* indicate we're in test mode */
1705 			dev_close(netdev);
1706 		else
1707 			/* This reset does not affect link - if it is
1708 			 * changed to a type of reset that does affect
1709 			 * link then the following link test would have
1710 			 * to be moved to before the reset
1711 			 */
1712 			i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1713 
1714 		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1715 			eth_test->flags |= ETH_TEST_FL_FAILED;
1716 
1717 		if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1718 			eth_test->flags |= ETH_TEST_FL_FAILED;
1719 
1720 		if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1721 			eth_test->flags |= ETH_TEST_FL_FAILED;
1722 
1723 		if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1724 			eth_test->flags |= ETH_TEST_FL_FAILED;
1725 
1726 		/* run reg test last, a reset is required after it */
1727 		if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1728 			eth_test->flags |= ETH_TEST_FL_FAILED;
1729 
1730 		clear_bit(__I40E_TESTING, &pf->state);
1731 		i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1732 
1733 		if (if_running)
1734 			dev_open(netdev);
1735 	} else {
1736 		/* Online tests */
1737 		netif_info(pf, drv, netdev, "online testing starting\n");
1738 
1739 		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1740 			eth_test->flags |= ETH_TEST_FL_FAILED;
1741 
1742 		/* Offline only tests, not run in online; pass by default */
1743 		data[I40E_ETH_TEST_REG] = 0;
1744 		data[I40E_ETH_TEST_EEPROM] = 0;
1745 		data[I40E_ETH_TEST_INTR] = 0;
1746 		data[I40E_ETH_TEST_LOOPBACK] = 0;
1747 	}
1748 
1749 skip_ol_tests:
1750 
1751 	netif_info(pf, drv, netdev, "testing finished\n");
1752 }
1753 
1754 static void i40e_get_wol(struct net_device *netdev,
1755 			 struct ethtool_wolinfo *wol)
1756 {
1757 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1758 	struct i40e_pf *pf = np->vsi->back;
1759 	struct i40e_hw *hw = &pf->hw;
1760 	u16 wol_nvm_bits;
1761 
1762 	/* NVM bit on means WoL disabled for the port */
1763 	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1764 	if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1765 		wol->supported = 0;
1766 		wol->wolopts = 0;
1767 	} else {
1768 		wol->supported = WAKE_MAGIC;
1769 		wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1770 	}
1771 }
1772 
1773 /**
1774  * i40e_set_wol - set the WakeOnLAN configuration
1775  * @netdev: the netdev in question
1776  * @wol: the ethtool WoL setting data
1777  **/
1778 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1779 {
1780 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1781 	struct i40e_pf *pf = np->vsi->back;
1782 	struct i40e_vsi *vsi = np->vsi;
1783 	struct i40e_hw *hw = &pf->hw;
1784 	u16 wol_nvm_bits;
1785 
1786 	/* WoL not supported if this isn't the controlling PF on the port */
1787 	if (hw->partition_id != 1) {
1788 		i40e_partition_setting_complaint(pf);
1789 		return -EOPNOTSUPP;
1790 	}
1791 
1792 	if (vsi != pf->vsi[pf->lan_vsi])
1793 		return -EOPNOTSUPP;
1794 
1795 	/* NVM bit on means WoL disabled for the port */
1796 	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1797 	if (BIT(hw->port) & wol_nvm_bits)
1798 		return -EOPNOTSUPP;
1799 
1800 	/* only magic packet is supported */
1801 	if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1802 		return -EOPNOTSUPP;
1803 
1804 	/* is this a new value? */
1805 	if (pf->wol_en != !!wol->wolopts) {
1806 		pf->wol_en = !!wol->wolopts;
1807 		device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1808 	}
1809 
1810 	return 0;
1811 }
1812 
1813 static int i40e_set_phys_id(struct net_device *netdev,
1814 			    enum ethtool_phys_id_state state)
1815 {
1816 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1817 	struct i40e_pf *pf = np->vsi->back;
1818 	struct i40e_hw *hw = &pf->hw;
1819 	int blink_freq = 2;
1820 
1821 	switch (state) {
1822 	case ETHTOOL_ID_ACTIVE:
1823 		pf->led_status = i40e_led_get(hw);
1824 		return blink_freq;
1825 	case ETHTOOL_ID_ON:
1826 		i40e_led_set(hw, 0xF, false);
1827 		break;
1828 	case ETHTOOL_ID_OFF:
1829 		i40e_led_set(hw, 0x0, false);
1830 		break;
1831 	case ETHTOOL_ID_INACTIVE:
1832 		i40e_led_set(hw, pf->led_status, false);
1833 		break;
1834 	default:
1835 		break;
1836 	}
1837 
1838 	return 0;
1839 }
1840 
1841 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1842  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1843  * 125us (8000 interrupts per second) == ITR(62)
1844  */
1845 
1846 static int i40e_get_coalesce(struct net_device *netdev,
1847 			     struct ethtool_coalesce *ec)
1848 {
1849 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1850 	struct i40e_vsi *vsi = np->vsi;
1851 
1852 	ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1853 	ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1854 
1855 	if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1856 		ec->use_adaptive_rx_coalesce = 1;
1857 
1858 	if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1859 		ec->use_adaptive_tx_coalesce = 1;
1860 
1861 	ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1862 	ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1863 	/* we use the _usecs_high to store/set the interrupt rate limit
1864 	 * that the hardware supports, that almost but not quite
1865 	 * fits the original intent of the ethtool variable,
1866 	 * the rx_coalesce_usecs_high limits total interrupts
1867 	 * per second from both tx/rx sources.
1868 	 */
1869 	ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
1870 	ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
1871 
1872 	return 0;
1873 }
1874 
1875 static int i40e_set_coalesce(struct net_device *netdev,
1876 			     struct ethtool_coalesce *ec)
1877 {
1878 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1879 	struct i40e_q_vector *q_vector;
1880 	struct i40e_vsi *vsi = np->vsi;
1881 	struct i40e_pf *pf = vsi->back;
1882 	struct i40e_hw *hw = &pf->hw;
1883 	u16 vector;
1884 	int i;
1885 
1886 	if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1887 		vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1888 
1889 	/* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
1890 	if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
1891 		netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
1892 		return -EINVAL;
1893 	}
1894 
1895 	if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
1896 		netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
1897 		return -EINVAL;
1898 	}
1899 
1900 	vector = vsi->base_vector;
1901 	if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1902 	    (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1903 		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1904 	} else if (ec->rx_coalesce_usecs == 0) {
1905 		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1906 		if (ec->use_adaptive_rx_coalesce)
1907 			netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1908 	} else {
1909 		netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1910 		return -EINVAL;
1911 	}
1912 
1913 	vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
1914 
1915 	if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1916 	    (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1917 		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1918 	} else if (ec->tx_coalesce_usecs == 0) {
1919 		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1920 		if (ec->use_adaptive_tx_coalesce)
1921 			netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1922 	} else {
1923 		netif_info(pf, drv, netdev,
1924 			   "Invalid value, tx-usecs range is 0-8160\n");
1925 		return -EINVAL;
1926 	}
1927 
1928 	if (ec->use_adaptive_rx_coalesce)
1929 		vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1930 	else
1931 		vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1932 
1933 	if (ec->use_adaptive_tx_coalesce)
1934 		vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1935 	else
1936 		vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1937 
1938 	for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1939 		u16 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
1940 
1941 		q_vector = vsi->q_vectors[i];
1942 		q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1943 		wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1944 		q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1945 		wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1946 		wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
1947 		i40e_flush(hw);
1948 	}
1949 
1950 	return 0;
1951 }
1952 
1953 /**
1954  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1955  * @pf: pointer to the physical function struct
1956  * @cmd: ethtool rxnfc command
1957  *
1958  * Returns Success if the flow is supported, else Invalid Input.
1959  **/
1960 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1961 {
1962 	cmd->data = 0;
1963 
1964 	if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
1965 		cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
1966 		cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
1967 		return 0;
1968 	}
1969 	/* Report default options for RSS on i40e */
1970 	switch (cmd->flow_type) {
1971 	case TCP_V4_FLOW:
1972 	case UDP_V4_FLOW:
1973 		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1974 	/* fall through to add IP fields */
1975 	case SCTP_V4_FLOW:
1976 	case AH_ESP_V4_FLOW:
1977 	case AH_V4_FLOW:
1978 	case ESP_V4_FLOW:
1979 	case IPV4_FLOW:
1980 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1981 		break;
1982 	case TCP_V6_FLOW:
1983 	case UDP_V6_FLOW:
1984 		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1985 	/* fall through to add IP fields */
1986 	case SCTP_V6_FLOW:
1987 	case AH_ESP_V6_FLOW:
1988 	case AH_V6_FLOW:
1989 	case ESP_V6_FLOW:
1990 	case IPV6_FLOW:
1991 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1992 		break;
1993 	default:
1994 		return -EINVAL;
1995 	}
1996 
1997 	return 0;
1998 }
1999 
2000 /**
2001  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2002  * @pf: Pointer to the physical function struct
2003  * @cmd: The command to get or set Rx flow classification rules
2004  * @rule_locs: Array of used rule locations
2005  *
2006  * This function populates both the total and actual rule count of
2007  * the ethtool flow classification command
2008  *
2009  * Returns 0 on success or -EMSGSIZE if entry not found
2010  **/
2011 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2012 				     struct ethtool_rxnfc *cmd,
2013 				     u32 *rule_locs)
2014 {
2015 	struct i40e_fdir_filter *rule;
2016 	struct hlist_node *node2;
2017 	int cnt = 0;
2018 
2019 	/* report total rule count */
2020 	cmd->data = i40e_get_fd_cnt_all(pf);
2021 
2022 	hlist_for_each_entry_safe(rule, node2,
2023 				  &pf->fdir_filter_list, fdir_node) {
2024 		if (cnt == cmd->rule_cnt)
2025 			return -EMSGSIZE;
2026 
2027 		rule_locs[cnt] = rule->fd_id;
2028 		cnt++;
2029 	}
2030 
2031 	cmd->rule_cnt = cnt;
2032 
2033 	return 0;
2034 }
2035 
2036 /**
2037  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2038  * @pf: Pointer to the physical function struct
2039  * @cmd: The command to get or set Rx flow classification rules
2040  *
2041  * This function looks up a filter based on the Rx flow classification
2042  * command and fills the flow spec info for it if found
2043  *
2044  * Returns 0 on success or -EINVAL if filter not found
2045  **/
2046 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2047 				       struct ethtool_rxnfc *cmd)
2048 {
2049 	struct ethtool_rx_flow_spec *fsp =
2050 			(struct ethtool_rx_flow_spec *)&cmd->fs;
2051 	struct i40e_fdir_filter *rule = NULL;
2052 	struct hlist_node *node2;
2053 
2054 	hlist_for_each_entry_safe(rule, node2,
2055 				  &pf->fdir_filter_list, fdir_node) {
2056 		if (fsp->location <= rule->fd_id)
2057 			break;
2058 	}
2059 
2060 	if (!rule || fsp->location != rule->fd_id)
2061 		return -EINVAL;
2062 
2063 	fsp->flow_type = rule->flow_type;
2064 	if (fsp->flow_type == IP_USER_FLOW) {
2065 		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2066 		fsp->h_u.usr_ip4_spec.proto = 0;
2067 		fsp->m_u.usr_ip4_spec.proto = 0;
2068 	}
2069 
2070 	/* Reverse the src and dest notion, since the HW views them from
2071 	 * Tx perspective where as the user expects it from Rx filter view.
2072 	 */
2073 	fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2074 	fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2075 	fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2076 	fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2077 
2078 	if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2079 		fsp->ring_cookie = RX_CLS_FLOW_DISC;
2080 	else
2081 		fsp->ring_cookie = rule->q_index;
2082 
2083 	if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2084 		struct i40e_vsi *vsi;
2085 
2086 		vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2087 		if (vsi && vsi->type == I40E_VSI_SRIOV) {
2088 			fsp->h_ext.data[1] = htonl(vsi->vf_id);
2089 			fsp->m_ext.data[1] = htonl(0x1);
2090 		}
2091 	}
2092 
2093 	return 0;
2094 }
2095 
2096 /**
2097  * i40e_get_rxnfc - command to get RX flow classification rules
2098  * @netdev: network interface device structure
2099  * @cmd: ethtool rxnfc command
2100  *
2101  * Returns Success if the command is supported.
2102  **/
2103 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2104 			  u32 *rule_locs)
2105 {
2106 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2107 	struct i40e_vsi *vsi = np->vsi;
2108 	struct i40e_pf *pf = vsi->back;
2109 	int ret = -EOPNOTSUPP;
2110 
2111 	switch (cmd->cmd) {
2112 	case ETHTOOL_GRXRINGS:
2113 		cmd->data = vsi->alloc_queue_pairs;
2114 		ret = 0;
2115 		break;
2116 	case ETHTOOL_GRXFH:
2117 		ret = i40e_get_rss_hash_opts(pf, cmd);
2118 		break;
2119 	case ETHTOOL_GRXCLSRLCNT:
2120 		cmd->rule_cnt = pf->fdir_pf_active_filters;
2121 		/* report total rule count */
2122 		cmd->data = i40e_get_fd_cnt_all(pf);
2123 		ret = 0;
2124 		break;
2125 	case ETHTOOL_GRXCLSRULE:
2126 		ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2127 		break;
2128 	case ETHTOOL_GRXCLSRLALL:
2129 		ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2130 		break;
2131 	default:
2132 		break;
2133 	}
2134 
2135 	return ret;
2136 }
2137 
2138 /**
2139  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2140  * @pf: pointer to the physical function struct
2141  * @cmd: ethtool rxnfc command
2142  *
2143  * Returns Success if the flow input set is supported.
2144  **/
2145 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2146 {
2147 	struct i40e_hw *hw = &pf->hw;
2148 	u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
2149 		   ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
2150 
2151 	/* RSS does not support anything other than hashing
2152 	 * to queues on src and dst IPs and ports
2153 	 */
2154 	if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2155 			  RXH_L4_B_0_1 | RXH_L4_B_2_3))
2156 		return -EINVAL;
2157 
2158 	/* We need at least the IP SRC and DEST fields for hashing */
2159 	if (!(nfc->data & RXH_IP_SRC) ||
2160 	    !(nfc->data & RXH_IP_DST))
2161 		return -EINVAL;
2162 
2163 	switch (nfc->flow_type) {
2164 	case TCP_V4_FLOW:
2165 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2166 		case 0:
2167 			hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2168 			break;
2169 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2170 			hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2171 			break;
2172 		default:
2173 			return -EINVAL;
2174 		}
2175 		break;
2176 	case TCP_V6_FLOW:
2177 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2178 		case 0:
2179 			hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2180 			break;
2181 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2182 			hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2183 			break;
2184 		default:
2185 			return -EINVAL;
2186 		}
2187 		break;
2188 	case UDP_V4_FLOW:
2189 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2190 		case 0:
2191 			hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2192 				  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2193 			break;
2194 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2195 			hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2196 				 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2197 			break;
2198 		default:
2199 			return -EINVAL;
2200 		}
2201 		break;
2202 	case UDP_V6_FLOW:
2203 		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2204 		case 0:
2205 			hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2206 				  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2207 			break;
2208 		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2209 			hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2210 				 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2211 			break;
2212 		default:
2213 			return -EINVAL;
2214 		}
2215 		break;
2216 	case AH_ESP_V4_FLOW:
2217 	case AH_V4_FLOW:
2218 	case ESP_V4_FLOW:
2219 	case SCTP_V4_FLOW:
2220 		if ((nfc->data & RXH_L4_B_0_1) ||
2221 		    (nfc->data & RXH_L4_B_2_3))
2222 			return -EINVAL;
2223 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2224 		break;
2225 	case AH_ESP_V6_FLOW:
2226 	case AH_V6_FLOW:
2227 	case ESP_V6_FLOW:
2228 	case SCTP_V6_FLOW:
2229 		if ((nfc->data & RXH_L4_B_0_1) ||
2230 		    (nfc->data & RXH_L4_B_2_3))
2231 			return -EINVAL;
2232 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2233 		break;
2234 	case IPV4_FLOW:
2235 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2236 			BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2237 		break;
2238 	case IPV6_FLOW:
2239 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2240 			BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2241 		break;
2242 	default:
2243 		return -EINVAL;
2244 	}
2245 
2246 	wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
2247 	wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2248 	i40e_flush(hw);
2249 
2250 	/* Save setting for future output/update */
2251 	pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2252 
2253 	return 0;
2254 }
2255 
2256 /**
2257  * i40e_match_fdir_input_set - Match a new filter against an existing one
2258  * @rule: The filter already added
2259  * @input: The new filter to comapre against
2260  *
2261  * Returns true if the two input set match
2262  **/
2263 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2264 				      struct i40e_fdir_filter *input)
2265 {
2266 	if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2267 	    (rule->src_ip[0] != input->src_ip[0]) ||
2268 	    (rule->dst_port != input->dst_port) ||
2269 	    (rule->src_port != input->src_port))
2270 		return false;
2271 	return true;
2272 }
2273 
2274 /**
2275  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2276  * @vsi: Pointer to the targeted VSI
2277  * @input: The filter to update or NULL to indicate deletion
2278  * @sw_idx: Software index to the filter
2279  * @cmd: The command to get or set Rx flow classification rules
2280  *
2281  * This function updates (or deletes) a Flow Director entry from
2282  * the hlist of the corresponding PF
2283  *
2284  * Returns 0 on success
2285  **/
2286 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2287 					  struct i40e_fdir_filter *input,
2288 					  u16 sw_idx,
2289 					  struct ethtool_rxnfc *cmd)
2290 {
2291 	struct i40e_fdir_filter *rule, *parent;
2292 	struct i40e_pf *pf = vsi->back;
2293 	struct hlist_node *node2;
2294 	int err = -EINVAL;
2295 
2296 	parent = NULL;
2297 	rule = NULL;
2298 
2299 	hlist_for_each_entry_safe(rule, node2,
2300 				  &pf->fdir_filter_list, fdir_node) {
2301 		/* hash found, or no matching entry */
2302 		if (rule->fd_id >= sw_idx)
2303 			break;
2304 		parent = rule;
2305 	}
2306 
2307 	/* if there is an old rule occupying our place remove it */
2308 	if (rule && (rule->fd_id == sw_idx)) {
2309 		if (input && !i40e_match_fdir_input_set(rule, input))
2310 			err = i40e_add_del_fdir(vsi, rule, false);
2311 		else if (!input)
2312 			err = i40e_add_del_fdir(vsi, rule, false);
2313 		hlist_del(&rule->fdir_node);
2314 		kfree(rule);
2315 		pf->fdir_pf_active_filters--;
2316 	}
2317 
2318 	/* If no input this was a delete, err should be 0 if a rule was
2319 	 * successfully found and removed from the list else -EINVAL
2320 	 */
2321 	if (!input)
2322 		return err;
2323 
2324 	/* initialize node and set software index */
2325 	INIT_HLIST_NODE(&input->fdir_node);
2326 
2327 	/* add filter to the list */
2328 	if (parent)
2329 		hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2330 	else
2331 		hlist_add_head(&input->fdir_node,
2332 			       &pf->fdir_filter_list);
2333 
2334 	/* update counts */
2335 	pf->fdir_pf_active_filters++;
2336 
2337 	return 0;
2338 }
2339 
2340 /**
2341  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2342  * @vsi: Pointer to the targeted VSI
2343  * @cmd: The command to get or set Rx flow classification rules
2344  *
2345  * The function removes a Flow Director filter entry from the
2346  * hlist of the corresponding PF
2347  *
2348  * Returns 0 on success
2349  */
2350 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2351 			       struct ethtool_rxnfc *cmd)
2352 {
2353 	struct ethtool_rx_flow_spec *fsp =
2354 		(struct ethtool_rx_flow_spec *)&cmd->fs;
2355 	struct i40e_pf *pf = vsi->back;
2356 	int ret = 0;
2357 
2358 	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2359 	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2360 		return -EBUSY;
2361 
2362 	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2363 		return -EBUSY;
2364 
2365 	ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2366 
2367 	i40e_fdir_check_and_reenable(pf);
2368 	return ret;
2369 }
2370 
2371 /**
2372  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2373  * @vsi: pointer to the targeted VSI
2374  * @cmd: command to get or set RX flow classification rules
2375  *
2376  * Add Flow Director filters for a specific flow spec based on their
2377  * protocol.  Returns 0 if the filters were successfully added.
2378  **/
2379 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2380 				 struct ethtool_rxnfc *cmd)
2381 {
2382 	struct ethtool_rx_flow_spec *fsp;
2383 	struct i40e_fdir_filter *input;
2384 	struct i40e_pf *pf;
2385 	int ret = -EINVAL;
2386 	u16 vf_id;
2387 
2388 	if (!vsi)
2389 		return -EINVAL;
2390 
2391 	pf = vsi->back;
2392 
2393 	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2394 		return -EOPNOTSUPP;
2395 
2396 	if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2397 		return -ENOSPC;
2398 
2399 	if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2400 	    test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2401 		return -EBUSY;
2402 
2403 	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2404 		return -EBUSY;
2405 
2406 	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2407 
2408 	if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2409 			      pf->hw.func_caps.fd_filters_guaranteed)) {
2410 		return -EINVAL;
2411 	}
2412 
2413 	if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2414 	    (fsp->ring_cookie >= vsi->num_queue_pairs))
2415 		return -EINVAL;
2416 
2417 	input = kzalloc(sizeof(*input), GFP_KERNEL);
2418 
2419 	if (!input)
2420 		return -ENOMEM;
2421 
2422 	input->fd_id = fsp->location;
2423 
2424 	if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2425 		input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2426 	else
2427 		input->dest_ctl =
2428 			     I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2429 
2430 	input->q_index = fsp->ring_cookie;
2431 	input->flex_off = 0;
2432 	input->pctype = 0;
2433 	input->dest_vsi = vsi->id;
2434 	input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2435 	input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2436 	input->flow_type = fsp->flow_type;
2437 	input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2438 
2439 	/* Reverse the src and dest notion, since the HW expects them to be from
2440 	 * Tx perspective where as the input from user is from Rx filter view.
2441 	 */
2442 	input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2443 	input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2444 	input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2445 	input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2446 
2447 	if (ntohl(fsp->m_ext.data[1])) {
2448 		if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2449 			netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2450 			goto free_input;
2451 		}
2452 		vf_id = ntohl(fsp->h_ext.data[1]);
2453 		/* Find vsi id from vf id and override dest vsi */
2454 		input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2455 		if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2456 			netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2457 			goto free_input;
2458 		}
2459 	}
2460 
2461 	ret = i40e_add_del_fdir(vsi, input, true);
2462 free_input:
2463 	if (ret)
2464 		kfree(input);
2465 	else
2466 		i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2467 
2468 	return ret;
2469 }
2470 
2471 /**
2472  * i40e_set_rxnfc - command to set RX flow classification rules
2473  * @netdev: network interface device structure
2474  * @cmd: ethtool rxnfc command
2475  *
2476  * Returns Success if the command is supported.
2477  **/
2478 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2479 {
2480 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2481 	struct i40e_vsi *vsi = np->vsi;
2482 	struct i40e_pf *pf = vsi->back;
2483 	int ret = -EOPNOTSUPP;
2484 
2485 	switch (cmd->cmd) {
2486 	case ETHTOOL_SRXFH:
2487 		ret = i40e_set_rss_hash_opt(pf, cmd);
2488 		break;
2489 	case ETHTOOL_SRXCLSRLINS:
2490 		ret = i40e_add_fdir_ethtool(vsi, cmd);
2491 		break;
2492 	case ETHTOOL_SRXCLSRLDEL:
2493 		ret = i40e_del_fdir_entry(vsi, cmd);
2494 		break;
2495 	default:
2496 		break;
2497 	}
2498 
2499 	return ret;
2500 }
2501 
2502 /**
2503  * i40e_max_channels - get Max number of combined channels supported
2504  * @vsi: vsi pointer
2505  **/
2506 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2507 {
2508 	/* TODO: This code assumes DCB and FD is disabled for now. */
2509 	return vsi->alloc_queue_pairs;
2510 }
2511 
2512 /**
2513  * i40e_get_channels - Get the current channels enabled and max supported etc.
2514  * @netdev: network interface device structure
2515  * @ch: ethtool channels structure
2516  *
2517  * We don't support separate tx and rx queues as channels. The other count
2518  * represents how many queues are being used for control. max_combined counts
2519  * how many queue pairs we can support. They may not be mapped 1 to 1 with
2520  * q_vectors since we support a lot more queue pairs than q_vectors.
2521  **/
2522 static void i40e_get_channels(struct net_device *dev,
2523 			       struct ethtool_channels *ch)
2524 {
2525 	struct i40e_netdev_priv *np = netdev_priv(dev);
2526 	struct i40e_vsi *vsi = np->vsi;
2527 	struct i40e_pf *pf = vsi->back;
2528 
2529 	/* report maximum channels */
2530 	ch->max_combined = i40e_max_channels(vsi);
2531 
2532 	/* report info for other vector */
2533 	ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2534 	ch->max_other = ch->other_count;
2535 
2536 	/* Note: This code assumes DCB is disabled for now. */
2537 	ch->combined_count = vsi->num_queue_pairs;
2538 }
2539 
2540 /**
2541  * i40e_set_channels - Set the new channels count.
2542  * @netdev: network interface device structure
2543  * @ch: ethtool channels structure
2544  *
2545  * The new channels count may not be the same as requested by the user
2546  * since it gets rounded down to a power of 2 value.
2547  **/
2548 static int i40e_set_channels(struct net_device *dev,
2549 			      struct ethtool_channels *ch)
2550 {
2551 	struct i40e_netdev_priv *np = netdev_priv(dev);
2552 	unsigned int count = ch->combined_count;
2553 	struct i40e_vsi *vsi = np->vsi;
2554 	struct i40e_pf *pf = vsi->back;
2555 	int new_count;
2556 
2557 	/* We do not support setting channels for any other VSI at present */
2558 	if (vsi->type != I40E_VSI_MAIN)
2559 		return -EINVAL;
2560 
2561 	/* verify they are not requesting separate vectors */
2562 	if (!count || ch->rx_count || ch->tx_count)
2563 		return -EINVAL;
2564 
2565 	/* verify other_count has not changed */
2566 	if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2567 		return -EINVAL;
2568 
2569 	/* verify the number of channels does not exceed hardware limits */
2570 	if (count > i40e_max_channels(vsi))
2571 		return -EINVAL;
2572 
2573 	/* update feature limits from largest to smallest supported values */
2574 	/* TODO: Flow director limit, DCB etc */
2575 
2576 	/* use rss_reconfig to rebuild with new queue count and update traffic
2577 	 * class queue mapping
2578 	 */
2579 	new_count = i40e_reconfig_rss_queues(pf, count);
2580 	if (new_count > 0)
2581 		return 0;
2582 	else
2583 		return -EINVAL;
2584 }
2585 
2586 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
2587 /**
2588  * i40e_get_rxfh_key_size - get the RSS hash key size
2589  * @netdev: network interface device structure
2590  *
2591  * Returns the table size.
2592  **/
2593 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2594 {
2595 	return I40E_HKEY_ARRAY_SIZE;
2596 }
2597 
2598 /**
2599  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2600  * @netdev: network interface device structure
2601  *
2602  * Returns the table size.
2603  **/
2604 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2605 {
2606 	return I40E_HLUT_ARRAY_SIZE;
2607 }
2608 
2609 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2610 			 u8 *hfunc)
2611 {
2612 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2613 	struct i40e_vsi *vsi = np->vsi;
2614 	struct i40e_pf *pf = vsi->back;
2615 	struct i40e_hw *hw = &pf->hw;
2616 	u32 reg_val;
2617 	int i, j;
2618 
2619 	if (hfunc)
2620 		*hfunc = ETH_RSS_HASH_TOP;
2621 
2622 	if (!indir)
2623 		return 0;
2624 
2625 	for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2626 		reg_val = rd32(hw, I40E_PFQF_HLUT(i));
2627 		indir[j++] = reg_val & 0xff;
2628 		indir[j++] = (reg_val >> 8) & 0xff;
2629 		indir[j++] = (reg_val >> 16) & 0xff;
2630 		indir[j++] = (reg_val >> 24) & 0xff;
2631 	}
2632 
2633 	if (key) {
2634 		for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2635 			reg_val = rd32(hw, I40E_PFQF_HKEY(i));
2636 			key[j++] = (u8)(reg_val & 0xff);
2637 			key[j++] = (u8)((reg_val >> 8) & 0xff);
2638 			key[j++] = (u8)((reg_val >> 16) & 0xff);
2639 			key[j++] = (u8)((reg_val >> 24) & 0xff);
2640 		}
2641 	}
2642 	return 0;
2643 }
2644 
2645 /**
2646  * i40e_set_rxfh - set the rx flow hash indirection table
2647  * @netdev: network interface device structure
2648  * @indir: indirection table
2649  * @key: hash key
2650  *
2651  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2652  * returns 0 after programming the table.
2653  **/
2654 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2655 			 const u8 *key, const u8 hfunc)
2656 {
2657 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2658 	struct i40e_vsi *vsi = np->vsi;
2659 	struct i40e_pf *pf = vsi->back;
2660 	struct i40e_hw *hw = &pf->hw;
2661 	u32 reg_val;
2662 	int i, j;
2663 
2664 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2665 		return -EOPNOTSUPP;
2666 
2667 	if (!indir)
2668 		return 0;
2669 
2670 	for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2671 		reg_val = indir[j++];
2672 		reg_val |= indir[j++] << 8;
2673 		reg_val |= indir[j++] << 16;
2674 		reg_val |= indir[j++] << 24;
2675 		wr32(hw, I40E_PFQF_HLUT(i), reg_val);
2676 	}
2677 
2678 	if (key) {
2679 		for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2680 			reg_val = key[j++];
2681 			reg_val |= key[j++] << 8;
2682 			reg_val |= key[j++] << 16;
2683 			reg_val |= key[j++] << 24;
2684 			wr32(hw, I40E_PFQF_HKEY(i), reg_val);
2685 		}
2686 	}
2687 	return 0;
2688 }
2689 
2690 /**
2691  * i40e_get_priv_flags - report device private flags
2692  * @dev: network interface device structure
2693  *
2694  * The get string set count and the string set should be matched for each
2695  * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2696  * array.
2697  *
2698  * Returns a u32 bitmap of flags.
2699  **/
2700 static u32 i40e_get_priv_flags(struct net_device *dev)
2701 {
2702 	struct i40e_netdev_priv *np = netdev_priv(dev);
2703 	struct i40e_vsi *vsi = np->vsi;
2704 	struct i40e_pf *pf = vsi->back;
2705 	u32 ret_flags = 0;
2706 
2707 	ret_flags |= pf->hw.func_caps.npar_enable ?
2708 		I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2709 	ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2710 		I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2711 	ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2712 		I40E_PRIV_FLAGS_FD_ATR : 0;
2713 	ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2714 		I40E_PRIV_FLAGS_VEB_STATS : 0;
2715 
2716 	return ret_flags;
2717 }
2718 
2719 /**
2720  * i40e_set_priv_flags - set private flags
2721  * @dev: network interface device structure
2722  * @flags: bit flags to be set
2723  **/
2724 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2725 {
2726 	struct i40e_netdev_priv *np = netdev_priv(dev);
2727 	struct i40e_vsi *vsi = np->vsi;
2728 	struct i40e_pf *pf = vsi->back;
2729 
2730 	if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2731 		pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2732 	else
2733 		pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2734 
2735 	/* allow the user to control the state of the Flow
2736 	 * Director ATR (Application Targeted Routing) feature
2737 	 * of the driver
2738 	 */
2739 	if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2740 		pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2741 	} else {
2742 		pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2743 		pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2744 	}
2745 
2746 	if (flags & I40E_PRIV_FLAGS_VEB_STATS)
2747 		pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2748 	else
2749 		pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2750 
2751 	return 0;
2752 }
2753 
2754 static const struct ethtool_ops i40e_ethtool_ops = {
2755 	.get_settings		= i40e_get_settings,
2756 	.set_settings		= i40e_set_settings,
2757 	.get_drvinfo		= i40e_get_drvinfo,
2758 	.get_regs_len		= i40e_get_regs_len,
2759 	.get_regs		= i40e_get_regs,
2760 	.nway_reset		= i40e_nway_reset,
2761 	.get_link		= ethtool_op_get_link,
2762 	.get_wol		= i40e_get_wol,
2763 	.set_wol		= i40e_set_wol,
2764 	.set_eeprom		= i40e_set_eeprom,
2765 	.get_eeprom_len		= i40e_get_eeprom_len,
2766 	.get_eeprom		= i40e_get_eeprom,
2767 	.get_ringparam		= i40e_get_ringparam,
2768 	.set_ringparam		= i40e_set_ringparam,
2769 	.get_pauseparam		= i40e_get_pauseparam,
2770 	.set_pauseparam		= i40e_set_pauseparam,
2771 	.get_msglevel		= i40e_get_msglevel,
2772 	.set_msglevel		= i40e_set_msglevel,
2773 	.get_rxnfc		= i40e_get_rxnfc,
2774 	.set_rxnfc		= i40e_set_rxnfc,
2775 	.self_test		= i40e_diag_test,
2776 	.get_strings		= i40e_get_strings,
2777 	.set_phys_id		= i40e_set_phys_id,
2778 	.get_sset_count		= i40e_get_sset_count,
2779 	.get_ethtool_stats	= i40e_get_ethtool_stats,
2780 	.get_coalesce		= i40e_get_coalesce,
2781 	.set_coalesce		= i40e_set_coalesce,
2782 	.get_rxfh_key_size	= i40e_get_rxfh_key_size,
2783 	.get_rxfh_indir_size	= i40e_get_rxfh_indir_size,
2784 	.get_rxfh		= i40e_get_rxfh,
2785 	.set_rxfh		= i40e_set_rxfh,
2786 	.get_channels		= i40e_get_channels,
2787 	.set_channels		= i40e_set_channels,
2788 	.get_ts_info		= i40e_get_ts_info,
2789 	.get_priv_flags		= i40e_get_priv_flags,
2790 	.set_priv_flags		= i40e_set_priv_flags,
2791 };
2792 
2793 void i40e_set_ethtool_ops(struct net_device *netdev)
2794 {
2795 	netdev->ethtool_ops = &i40e_ethtool_ops;
2796 }
2797