1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
3 
4 /* ethtool support for i40e */
5 
6 #include "i40e.h"
7 #include "i40e_diag.h"
8 #include "i40e_txrx_common.h"
9 
10 /* ethtool statistics helpers */
11 
12 /**
13  * struct i40e_stats - definition for an ethtool statistic
14  * @stat_string: statistic name to display in ethtool -S output
15  * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
16  * @stat_offset: offsetof() the stat from a base pointer
17  *
18  * This structure defines a statistic to be added to the ethtool stats buffer.
19  * It defines a statistic as offset from a common base pointer. Stats should
20  * be defined in constant arrays using the I40E_STAT macro, with every element
21  * of the array using the same _type for calculating the sizeof_stat and
22  * stat_offset.
23  *
24  * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
25  * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
26  * the i40e_add_ethtool_stat() helper function.
27  *
28  * The @stat_string is interpreted as a format string, allowing formatted
29  * values to be inserted while looping over multiple structures for a given
30  * statistics array. Thus, every statistic string in an array should have the
31  * same type and number of format specifiers, to be formatted by variadic
32  * arguments to the i40e_add_stat_string() helper function.
33  **/
34 struct i40e_stats {
35 	char stat_string[ETH_GSTRING_LEN];
36 	int sizeof_stat;
37 	int stat_offset;
38 };
39 
40 /* Helper macro to define an i40e_stat structure with proper size and type.
41  * Use this when defining constant statistics arrays. Note that @_type expects
42  * only a type name and is used multiple times.
43  */
44 #define I40E_STAT(_type, _name, _stat) { \
45 	.stat_string = _name, \
46 	.sizeof_stat = sizeof_field(_type, _stat), \
47 	.stat_offset = offsetof(_type, _stat) \
48 }
49 
50 /* Helper macro for defining some statistics directly copied from the netdev
51  * stats structure.
52  */
53 #define I40E_NETDEV_STAT(_net_stat) \
54 	I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
55 
56 /* Helper macro for defining some statistics related to queues */
57 #define I40E_QUEUE_STAT(_name, _stat) \
58 	I40E_STAT(struct i40e_ring, _name, _stat)
59 
60 /* Stats associated with a Tx or Rx ring */
61 static const struct i40e_stats i40e_gstrings_queue_stats[] = {
62 	I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
63 	I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
64 };
65 
66 /**
67  * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
68  * @data: location to store the stat value
69  * @pointer: basis for where to copy from
70  * @stat: the stat definition
71  *
72  * Copies the stat data defined by the pointer and stat structure pair into
73  * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
74  * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
75  */
76 static void
77 i40e_add_one_ethtool_stat(u64 *data, void *pointer,
78 			  const struct i40e_stats *stat)
79 {
80 	char *p;
81 
82 	if (!pointer) {
83 		/* ensure that the ethtool data buffer is zero'd for any stats
84 		 * which don't have a valid pointer.
85 		 */
86 		*data = 0;
87 		return;
88 	}
89 
90 	p = (char *)pointer + stat->stat_offset;
91 	switch (stat->sizeof_stat) {
92 	case sizeof(u64):
93 		*data = *((u64 *)p);
94 		break;
95 	case sizeof(u32):
96 		*data = *((u32 *)p);
97 		break;
98 	case sizeof(u16):
99 		*data = *((u16 *)p);
100 		break;
101 	case sizeof(u8):
102 		*data = *((u8 *)p);
103 		break;
104 	default:
105 		WARN_ONCE(1, "unexpected stat size for %s",
106 			  stat->stat_string);
107 		*data = 0;
108 	}
109 }
110 
111 /**
112  * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
113  * @data: ethtool stats buffer
114  * @pointer: location to copy stats from
115  * @stats: array of stats to copy
116  * @size: the size of the stats definition
117  *
118  * Copy the stats defined by the stats array using the pointer as a base into
119  * the data buffer supplied by ethtool. Updates the data pointer to point to
120  * the next empty location for successive calls to __i40e_add_ethtool_stats.
121  * If pointer is null, set the data values to zero and update the pointer to
122  * skip these stats.
123  **/
124 static void
125 __i40e_add_ethtool_stats(u64 **data, void *pointer,
126 			 const struct i40e_stats stats[],
127 			 const unsigned int size)
128 {
129 	unsigned int i;
130 
131 	for (i = 0; i < size; i++)
132 		i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
133 }
134 
135 /**
136  * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
137  * @data: ethtool stats buffer
138  * @pointer: location where stats are stored
139  * @stats: static const array of stat definitions
140  *
141  * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
142  * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
143  * ensuring that we pass the size associated with the given stats array.
144  *
145  * The parameter @stats is evaluated twice, so parameters with side effects
146  * should be avoided.
147  **/
148 #define i40e_add_ethtool_stats(data, pointer, stats) \
149 	__i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
150 
151 /**
152  * i40e_add_queue_stats - copy queue statistics into supplied buffer
153  * @data: ethtool stats buffer
154  * @ring: the ring to copy
155  *
156  * Queue statistics must be copied while protected by
157  * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats.
158  * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
159  * ring pointer is null, zero out the queue stat values and update the data
160  * pointer. Otherwise safely copy the stats from the ring into the supplied
161  * buffer and update the data pointer when finished.
162  *
163  * This function expects to be called while under rcu_read_lock().
164  **/
165 static void
166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
167 {
168 	const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
169 	const struct i40e_stats *stats = i40e_gstrings_queue_stats;
170 	unsigned int start;
171 	unsigned int i;
172 
173 	/* To avoid invalid statistics values, ensure that we keep retrying
174 	 * the copy until we get a consistent value according to
175 	 * u64_stats_fetch_retry_irq. But first, make sure our ring is
176 	 * non-null before attempting to access its syncp.
177 	 */
178 	do {
179 		start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
180 		for (i = 0; i < size; i++) {
181 			i40e_add_one_ethtool_stat(&(*data)[i], ring,
182 						  &stats[i]);
183 		}
184 	} while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
185 
186 	/* Once we successfully copy the stats in, update the data pointer */
187 	*data += size;
188 }
189 
190 /**
191  * __i40e_add_stat_strings - copy stat strings into ethtool buffer
192  * @p: ethtool supplied buffer
193  * @stats: stat definitions array
194  * @size: size of the stats array
195  *
196  * Format and copy the strings described by stats into the buffer pointed at
197  * by p.
198  **/
199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
200 				    const unsigned int size, ...)
201 {
202 	unsigned int i;
203 
204 	for (i = 0; i < size; i++) {
205 		va_list args;
206 
207 		va_start(args, size);
208 		vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
209 		*p += ETH_GSTRING_LEN;
210 		va_end(args);
211 	}
212 }
213 
214 /**
215  * i40e_add_stat_strings - copy stat strings into ethtool buffer
216  * @p: ethtool supplied buffer
217  * @stats: stat definitions array
218  *
219  * Format and copy the strings described by the const static stats value into
220  * the buffer pointed at by p.
221  *
222  * The parameter @stats is evaluated twice, so parameters with side effects
223  * should be avoided. Additionally, stats must be an array such that
224  * ARRAY_SIZE can be called on it.
225  **/
226 #define i40e_add_stat_strings(p, stats, ...) \
227 	__i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
228 
229 #define I40E_PF_STAT(_name, _stat) \
230 	I40E_STAT(struct i40e_pf, _name, _stat)
231 #define I40E_VSI_STAT(_name, _stat) \
232 	I40E_STAT(struct i40e_vsi, _name, _stat)
233 #define I40E_VEB_STAT(_name, _stat) \
234 	I40E_STAT(struct i40e_veb, _name, _stat)
235 #define I40E_VEB_TC_STAT(_name, _stat) \
236 	I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat)
237 #define I40E_PFC_STAT(_name, _stat) \
238 	I40E_STAT(struct i40e_pfc_stats, _name, _stat)
239 
240 static const struct i40e_stats i40e_gstrings_net_stats[] = {
241 	I40E_NETDEV_STAT(rx_packets),
242 	I40E_NETDEV_STAT(tx_packets),
243 	I40E_NETDEV_STAT(rx_bytes),
244 	I40E_NETDEV_STAT(tx_bytes),
245 	I40E_NETDEV_STAT(rx_errors),
246 	I40E_NETDEV_STAT(tx_errors),
247 	I40E_NETDEV_STAT(rx_dropped),
248 	I40E_NETDEV_STAT(tx_dropped),
249 	I40E_NETDEV_STAT(collisions),
250 	I40E_NETDEV_STAT(rx_length_errors),
251 	I40E_NETDEV_STAT(rx_crc_errors),
252 };
253 
254 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
255 	I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
256 	I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
257 	I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
258 	I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
259 	I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
260 	I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
261 	I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
262 	I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
263 	I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
264 	I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
265 	I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
266 	I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
267 };
268 
269 struct i40e_cp_veb_tc_stats {
270 	u64 tc_rx_packets;
271 	u64 tc_rx_bytes;
272 	u64 tc_tx_packets;
273 	u64 tc_tx_bytes;
274 };
275 
276 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
277 	I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets),
278 	I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes),
279 	I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets),
280 	I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes),
281 };
282 
283 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
284 	I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
285 	I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
286 	I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
287 	I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
288 	I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
289 	I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
290 	I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
291 	I40E_VSI_STAT("tx_linearize", tx_linearize),
292 	I40E_VSI_STAT("tx_force_wb", tx_force_wb),
293 	I40E_VSI_STAT("tx_busy", tx_busy),
294 	I40E_VSI_STAT("tx_stopped", tx_stopped),
295 	I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
296 	I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
297 	I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse),
298 	I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc),
299 	I40E_VSI_STAT("rx_cache_waive", rx_page_waive),
300 	I40E_VSI_STAT("rx_cache_busy", rx_page_busy),
301 	I40E_VSI_STAT("tx_restart", tx_restart),
302 };
303 
304 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
305  * but they are separate.  This device supports Virtualization, and
306  * as such might have several netdevs supporting VMDq and FCoE going
307  * through a single port.  The NETDEV_STATs are for individual netdevs
308  * seen at the top of the stack, and the PF_STATs are for the physical
309  * function at the bottom of the stack hosting those netdevs.
310  *
311  * The PF_STATs are appended to the netdev stats only when ethtool -S
312  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
313  */
314 static const struct i40e_stats i40e_gstrings_stats[] = {
315 	I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
316 	I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
317 	I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
318 	I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
319 	I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
320 	I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
321 	I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
322 	I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
323 	I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
324 	I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
325 	I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
326 	I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
327 	I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
328 	I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
329 	I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
330 	I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
331 	I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
332 	I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
333 	I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
334 	I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
335 	I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
336 	I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
337 	I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
338 	I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
339 	I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
340 	I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
341 	I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
342 	I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
343 	I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
344 	I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
345 	I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
346 	I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
347 	I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
348 	I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
349 	I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
350 	I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
351 	I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
352 	I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
353 	I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
354 	I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
355 	I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
356 	I40E_PF_STAT("port.arq_overflows", arq_overflows),
357 	I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
358 	I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
359 	I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
360 	I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
361 	I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
362 	I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
363 	I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
364 	I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
365 	I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
366 
367 	/* LPI stats */
368 	I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
369 	I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
370 	I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
371 	I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
372 };
373 
374 struct i40e_pfc_stats {
375 	u64 priority_xon_rx;
376 	u64 priority_xoff_rx;
377 	u64 priority_xon_tx;
378 	u64 priority_xoff_tx;
379 	u64 priority_xon_2_xoff;
380 };
381 
382 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
383 	I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
384 	I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
385 	I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
386 	I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
387 	I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
388 };
389 
390 #define I40E_NETDEV_STATS_LEN	ARRAY_SIZE(i40e_gstrings_net_stats)
391 
392 #define I40E_MISC_STATS_LEN	ARRAY_SIZE(i40e_gstrings_misc_stats)
393 
394 #define I40E_VSI_STATS_LEN	(I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
395 
396 #define I40E_PFC_STATS_LEN	(ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
397 				 I40E_MAX_USER_PRIORITY)
398 
399 #define I40E_VEB_STATS_LEN	(ARRAY_SIZE(i40e_gstrings_veb_stats) + \
400 				 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
401 				  I40E_MAX_TRAFFIC_CLASS))
402 
403 #define I40E_GLOBAL_STATS_LEN	ARRAY_SIZE(i40e_gstrings_stats)
404 
405 #define I40E_PF_STATS_LEN	(I40E_GLOBAL_STATS_LEN + \
406 				 I40E_PFC_STATS_LEN + \
407 				 I40E_VEB_STATS_LEN + \
408 				 I40E_VSI_STATS_LEN)
409 
410 /* Length of stats for a single queue */
411 #define I40E_QUEUE_STATS_LEN	ARRAY_SIZE(i40e_gstrings_queue_stats)
412 
413 enum i40e_ethtool_test_id {
414 	I40E_ETH_TEST_REG = 0,
415 	I40E_ETH_TEST_EEPROM,
416 	I40E_ETH_TEST_INTR,
417 	I40E_ETH_TEST_LINK,
418 };
419 
420 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
421 	"Register test  (offline)",
422 	"Eeprom test    (offline)",
423 	"Interrupt test (offline)",
424 	"Link test   (on/offline)"
425 };
426 
427 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
428 
429 struct i40e_priv_flags {
430 	char flag_string[ETH_GSTRING_LEN];
431 	u64 flag;
432 	bool read_only;
433 };
434 
435 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
436 	.flag_string = _name, \
437 	.flag = _flag, \
438 	.read_only = _read_only, \
439 }
440 
441 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
442 	/* NOTE: MFP setting cannot be changed */
443 	I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
444 	I40E_PRIV_FLAG("total-port-shutdown",
445 		       I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
446 	I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
447 	I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
448 	I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
449 	I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
450 	I40E_PRIV_FLAG("link-down-on-close",
451 		       I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
452 	I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
453 	I40E_PRIV_FLAG("disable-source-pruning",
454 		       I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
455 	I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
456 	I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
457 	I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
458 	I40E_PRIV_FLAG("vf-vlan-pruning",
459 		       I40E_FLAG_VF_VLAN_PRUNING, 0),
460 };
461 
462 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
463 
464 /* Private flags with a global effect, restricted to PF 0 */
465 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
466 	I40E_PRIV_FLAG("vf-true-promisc-support",
467 		       I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
468 };
469 
470 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
471 
472 /**
473  * i40e_partition_setting_complaint - generic complaint for MFP restriction
474  * @pf: the PF struct
475  **/
476 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
477 {
478 	dev_info(&pf->pdev->dev,
479 		 "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");
480 }
481 
482 /**
483  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
484  * @pf: PF struct with phy_types
485  * @ks: ethtool link ksettings struct to fill out
486  *
487  **/
488 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
489 				     struct ethtool_link_ksettings *ks)
490 {
491 	struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
492 	u64 phy_types = pf->hw.phy.phy_types;
493 
494 	ethtool_link_ksettings_zero_link_mode(ks, supported);
495 	ethtool_link_ksettings_zero_link_mode(ks, advertising);
496 
497 	if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
498 		ethtool_link_ksettings_add_link_mode(ks, supported,
499 						     1000baseT_Full);
500 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
501 			ethtool_link_ksettings_add_link_mode(ks, advertising,
502 							     1000baseT_Full);
503 		if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
504 			ethtool_link_ksettings_add_link_mode(ks, supported,
505 							     100baseT_Full);
506 			ethtool_link_ksettings_add_link_mode(ks, advertising,
507 							     100baseT_Full);
508 		}
509 	}
510 	if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
511 	    phy_types & I40E_CAP_PHY_TYPE_XFI ||
512 	    phy_types & I40E_CAP_PHY_TYPE_SFI ||
513 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
514 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
515 		ethtool_link_ksettings_add_link_mode(ks, supported,
516 						     10000baseT_Full);
517 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
518 			ethtool_link_ksettings_add_link_mode(ks, advertising,
519 							     10000baseT_Full);
520 	}
521 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
522 		ethtool_link_ksettings_add_link_mode(ks, supported,
523 						     10000baseT_Full);
524 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
525 			ethtool_link_ksettings_add_link_mode(ks, advertising,
526 							     10000baseT_Full);
527 	}
528 	if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
529 		ethtool_link_ksettings_add_link_mode(ks, supported,
530 						     2500baseT_Full);
531 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
532 			ethtool_link_ksettings_add_link_mode(ks, advertising,
533 							     2500baseT_Full);
534 	}
535 	if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
536 		ethtool_link_ksettings_add_link_mode(ks, supported,
537 						     5000baseT_Full);
538 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
539 			ethtool_link_ksettings_add_link_mode(ks, advertising,
540 							     5000baseT_Full);
541 	}
542 	if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
543 	    phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
544 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
545 		ethtool_link_ksettings_add_link_mode(ks, supported,
546 						     40000baseCR4_Full);
547 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
548 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
549 		ethtool_link_ksettings_add_link_mode(ks, supported,
550 						     40000baseCR4_Full);
551 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
552 			ethtool_link_ksettings_add_link_mode(ks, advertising,
553 							     40000baseCR4_Full);
554 	}
555 	if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
556 		ethtool_link_ksettings_add_link_mode(ks, supported,
557 						     100baseT_Full);
558 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
559 			ethtool_link_ksettings_add_link_mode(ks, advertising,
560 							     100baseT_Full);
561 	}
562 	if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
563 		ethtool_link_ksettings_add_link_mode(ks, supported,
564 						     1000baseT_Full);
565 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
566 			ethtool_link_ksettings_add_link_mode(ks, advertising,
567 							     1000baseT_Full);
568 	}
569 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
570 		ethtool_link_ksettings_add_link_mode(ks, supported,
571 						     40000baseSR4_Full);
572 		ethtool_link_ksettings_add_link_mode(ks, advertising,
573 						     40000baseSR4_Full);
574 	}
575 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
576 		ethtool_link_ksettings_add_link_mode(ks, supported,
577 						     40000baseLR4_Full);
578 		ethtool_link_ksettings_add_link_mode(ks, advertising,
579 						     40000baseLR4_Full);
580 	}
581 	if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
582 		ethtool_link_ksettings_add_link_mode(ks, supported,
583 						     40000baseKR4_Full);
584 		ethtool_link_ksettings_add_link_mode(ks, advertising,
585 						     40000baseKR4_Full);
586 	}
587 	if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
588 		ethtool_link_ksettings_add_link_mode(ks, supported,
589 						     20000baseKR2_Full);
590 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
591 			ethtool_link_ksettings_add_link_mode(ks, advertising,
592 							     20000baseKR2_Full);
593 	}
594 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
595 		ethtool_link_ksettings_add_link_mode(ks, supported,
596 						     10000baseKX4_Full);
597 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
598 			ethtool_link_ksettings_add_link_mode(ks, advertising,
599 							     10000baseKX4_Full);
600 	}
601 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
602 	    !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
603 		ethtool_link_ksettings_add_link_mode(ks, supported,
604 						     10000baseKR_Full);
605 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
606 			ethtool_link_ksettings_add_link_mode(ks, advertising,
607 							     10000baseKR_Full);
608 	}
609 	if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
610 	    !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
611 		ethtool_link_ksettings_add_link_mode(ks, supported,
612 						     1000baseKX_Full);
613 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
614 			ethtool_link_ksettings_add_link_mode(ks, advertising,
615 							     1000baseKX_Full);
616 	}
617 	/* need to add 25G PHY types */
618 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
619 		ethtool_link_ksettings_add_link_mode(ks, supported,
620 						     25000baseKR_Full);
621 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
622 			ethtool_link_ksettings_add_link_mode(ks, advertising,
623 							     25000baseKR_Full);
624 	}
625 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
626 		ethtool_link_ksettings_add_link_mode(ks, supported,
627 						     25000baseCR_Full);
628 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
629 			ethtool_link_ksettings_add_link_mode(ks, advertising,
630 							     25000baseCR_Full);
631 	}
632 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
633 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
634 		ethtool_link_ksettings_add_link_mode(ks, supported,
635 						     25000baseSR_Full);
636 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
637 			ethtool_link_ksettings_add_link_mode(ks, advertising,
638 							     25000baseSR_Full);
639 	}
640 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
641 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
642 		ethtool_link_ksettings_add_link_mode(ks, supported,
643 						     25000baseCR_Full);
644 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
645 			ethtool_link_ksettings_add_link_mode(ks, advertising,
646 							     25000baseCR_Full);
647 	}
648 	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
649 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
650 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
651 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
652 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
653 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
654 		ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
655 		ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
656 		ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
657 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
658 			ethtool_link_ksettings_add_link_mode(ks, advertising,
659 							     FEC_NONE);
660 			ethtool_link_ksettings_add_link_mode(ks, advertising,
661 							     FEC_RS);
662 			ethtool_link_ksettings_add_link_mode(ks, advertising,
663 							     FEC_BASER);
664 		}
665 	}
666 	/* need to add new 10G PHY types */
667 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
668 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
669 		ethtool_link_ksettings_add_link_mode(ks, supported,
670 						     10000baseCR_Full);
671 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
672 			ethtool_link_ksettings_add_link_mode(ks, advertising,
673 							     10000baseCR_Full);
674 	}
675 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
676 		ethtool_link_ksettings_add_link_mode(ks, supported,
677 						     10000baseSR_Full);
678 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
679 			ethtool_link_ksettings_add_link_mode(ks, advertising,
680 							     10000baseSR_Full);
681 	}
682 	if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
683 		ethtool_link_ksettings_add_link_mode(ks, supported,
684 						     10000baseLR_Full);
685 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
686 			ethtool_link_ksettings_add_link_mode(ks, advertising,
687 							     10000baseLR_Full);
688 	}
689 	if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
690 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
691 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
692 		ethtool_link_ksettings_add_link_mode(ks, supported,
693 						     1000baseX_Full);
694 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
695 			ethtool_link_ksettings_add_link_mode(ks, advertising,
696 							     1000baseX_Full);
697 	}
698 	/* Autoneg PHY types */
699 	if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
700 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
701 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
702 	    phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
703 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
704 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
705 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
706 	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
707 	    phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
708 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
709 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
710 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
711 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
712 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
713 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
714 	    phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
715 	    phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
716 	    phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
717 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
718 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
719 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
720 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
721 	    phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
722 	    phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
723 		ethtool_link_ksettings_add_link_mode(ks, supported,
724 						     Autoneg);
725 		ethtool_link_ksettings_add_link_mode(ks, advertising,
726 						     Autoneg);
727 	}
728 }
729 
730 /**
731  * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
732  * @req_fec_info: mask request FEC info
733  * @ks: ethtool ksettings to fill in
734  **/
735 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
736 					  struct ethtool_link_ksettings *ks)
737 {
738 	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
739 	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
740 	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
741 
742 	if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
743 	    (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
744 		ethtool_link_ksettings_add_link_mode(ks, advertising,
745 						     FEC_NONE);
746 		ethtool_link_ksettings_add_link_mode(ks, advertising,
747 						     FEC_BASER);
748 		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
749 	} else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
750 		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
751 	} else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
752 		ethtool_link_ksettings_add_link_mode(ks, advertising,
753 						     FEC_BASER);
754 	} else {
755 		ethtool_link_ksettings_add_link_mode(ks, advertising,
756 						     FEC_NONE);
757 	}
758 }
759 
760 /**
761  * i40e_get_settings_link_up - Get the Link settings for when link is up
762  * @hw: hw structure
763  * @ks: ethtool ksettings to fill in
764  * @netdev: network interface device structure
765  * @pf: pointer to physical function struct
766  **/
767 static void i40e_get_settings_link_up(struct i40e_hw *hw,
768 				      struct ethtool_link_ksettings *ks,
769 				      struct net_device *netdev,
770 				      struct i40e_pf *pf)
771 {
772 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
773 	struct ethtool_link_ksettings cap_ksettings;
774 	u32 link_speed = hw_link_info->link_speed;
775 
776 	/* Initialize supported and advertised settings based on phy settings */
777 	switch (hw_link_info->phy_type) {
778 	case I40E_PHY_TYPE_40GBASE_CR4:
779 	case I40E_PHY_TYPE_40GBASE_CR4_CU:
780 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
781 		ethtool_link_ksettings_add_link_mode(ks, supported,
782 						     40000baseCR4_Full);
783 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
784 		ethtool_link_ksettings_add_link_mode(ks, advertising,
785 						     40000baseCR4_Full);
786 		break;
787 	case I40E_PHY_TYPE_XLAUI:
788 	case I40E_PHY_TYPE_XLPPI:
789 	case I40E_PHY_TYPE_40GBASE_AOC:
790 		ethtool_link_ksettings_add_link_mode(ks, supported,
791 						     40000baseCR4_Full);
792 		ethtool_link_ksettings_add_link_mode(ks, advertising,
793 						     40000baseCR4_Full);
794 		break;
795 	case I40E_PHY_TYPE_40GBASE_SR4:
796 		ethtool_link_ksettings_add_link_mode(ks, supported,
797 						     40000baseSR4_Full);
798 		ethtool_link_ksettings_add_link_mode(ks, advertising,
799 						     40000baseSR4_Full);
800 		break;
801 	case I40E_PHY_TYPE_40GBASE_LR4:
802 		ethtool_link_ksettings_add_link_mode(ks, supported,
803 						     40000baseLR4_Full);
804 		ethtool_link_ksettings_add_link_mode(ks, advertising,
805 						     40000baseLR4_Full);
806 		break;
807 	case I40E_PHY_TYPE_25GBASE_SR:
808 	case I40E_PHY_TYPE_25GBASE_LR:
809 	case I40E_PHY_TYPE_10GBASE_SR:
810 	case I40E_PHY_TYPE_10GBASE_LR:
811 	case I40E_PHY_TYPE_1000BASE_SX:
812 	case I40E_PHY_TYPE_1000BASE_LX:
813 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
814 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
815 		ethtool_link_ksettings_add_link_mode(ks, supported,
816 						     25000baseSR_Full);
817 		ethtool_link_ksettings_add_link_mode(ks, advertising,
818 						     25000baseSR_Full);
819 		i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
820 		ethtool_link_ksettings_add_link_mode(ks, supported,
821 						     10000baseSR_Full);
822 		ethtool_link_ksettings_add_link_mode(ks, advertising,
823 						     10000baseSR_Full);
824 		ethtool_link_ksettings_add_link_mode(ks, supported,
825 						     10000baseLR_Full);
826 		ethtool_link_ksettings_add_link_mode(ks, advertising,
827 						     10000baseLR_Full);
828 		ethtool_link_ksettings_add_link_mode(ks, supported,
829 						     1000baseX_Full);
830 		ethtool_link_ksettings_add_link_mode(ks, advertising,
831 						     1000baseX_Full);
832 		ethtool_link_ksettings_add_link_mode(ks, supported,
833 						     10000baseT_Full);
834 		if (hw_link_info->module_type[2] &
835 		    I40E_MODULE_TYPE_1000BASE_SX ||
836 		    hw_link_info->module_type[2] &
837 		    I40E_MODULE_TYPE_1000BASE_LX) {
838 			ethtool_link_ksettings_add_link_mode(ks, supported,
839 							     1000baseT_Full);
840 			if (hw_link_info->requested_speeds &
841 			    I40E_LINK_SPEED_1GB)
842 				ethtool_link_ksettings_add_link_mode(
843 				     ks, advertising, 1000baseT_Full);
844 		}
845 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
846 			ethtool_link_ksettings_add_link_mode(ks, advertising,
847 							     10000baseT_Full);
848 		break;
849 	case I40E_PHY_TYPE_10GBASE_T:
850 	case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
851 	case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
852 	case I40E_PHY_TYPE_1000BASE_T:
853 	case I40E_PHY_TYPE_100BASE_TX:
854 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
855 		ethtool_link_ksettings_add_link_mode(ks, supported,
856 						     10000baseT_Full);
857 		ethtool_link_ksettings_add_link_mode(ks, supported,
858 						     5000baseT_Full);
859 		ethtool_link_ksettings_add_link_mode(ks, supported,
860 						     2500baseT_Full);
861 		ethtool_link_ksettings_add_link_mode(ks, supported,
862 						     1000baseT_Full);
863 		ethtool_link_ksettings_add_link_mode(ks, supported,
864 						     100baseT_Full);
865 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
866 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
867 			ethtool_link_ksettings_add_link_mode(ks, advertising,
868 							     10000baseT_Full);
869 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
870 			ethtool_link_ksettings_add_link_mode(ks, advertising,
871 							     5000baseT_Full);
872 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
873 			ethtool_link_ksettings_add_link_mode(ks, advertising,
874 							     2500baseT_Full);
875 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
876 			ethtool_link_ksettings_add_link_mode(ks, advertising,
877 							     1000baseT_Full);
878 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
879 			ethtool_link_ksettings_add_link_mode(ks, advertising,
880 							     100baseT_Full);
881 		break;
882 	case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
883 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
884 		ethtool_link_ksettings_add_link_mode(ks, supported,
885 						     1000baseT_Full);
886 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
887 		ethtool_link_ksettings_add_link_mode(ks, advertising,
888 						     1000baseT_Full);
889 		break;
890 	case I40E_PHY_TYPE_10GBASE_CR1_CU:
891 	case I40E_PHY_TYPE_10GBASE_CR1:
892 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
893 		ethtool_link_ksettings_add_link_mode(ks, supported,
894 						     10000baseT_Full);
895 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
896 		ethtool_link_ksettings_add_link_mode(ks, advertising,
897 						     10000baseT_Full);
898 		break;
899 	case I40E_PHY_TYPE_XAUI:
900 	case I40E_PHY_TYPE_XFI:
901 	case I40E_PHY_TYPE_SFI:
902 	case I40E_PHY_TYPE_10GBASE_SFPP_CU:
903 	case I40E_PHY_TYPE_10GBASE_AOC:
904 		ethtool_link_ksettings_add_link_mode(ks, supported,
905 						     10000baseT_Full);
906 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
907 			ethtool_link_ksettings_add_link_mode(ks, advertising,
908 							     10000baseT_Full);
909 		i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
910 		break;
911 	case I40E_PHY_TYPE_SGMII:
912 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
913 		ethtool_link_ksettings_add_link_mode(ks, supported,
914 						     1000baseT_Full);
915 		if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
916 			ethtool_link_ksettings_add_link_mode(ks, advertising,
917 							     1000baseT_Full);
918 		if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
919 			ethtool_link_ksettings_add_link_mode(ks, supported,
920 							     100baseT_Full);
921 			if (hw_link_info->requested_speeds &
922 			    I40E_LINK_SPEED_100MB)
923 				ethtool_link_ksettings_add_link_mode(
924 				      ks, advertising, 100baseT_Full);
925 		}
926 		break;
927 	case I40E_PHY_TYPE_40GBASE_KR4:
928 	case I40E_PHY_TYPE_25GBASE_KR:
929 	case I40E_PHY_TYPE_20GBASE_KR2:
930 	case I40E_PHY_TYPE_10GBASE_KR:
931 	case I40E_PHY_TYPE_10GBASE_KX4:
932 	case I40E_PHY_TYPE_1000BASE_KX:
933 		ethtool_link_ksettings_add_link_mode(ks, supported,
934 						     40000baseKR4_Full);
935 		ethtool_link_ksettings_add_link_mode(ks, supported,
936 						     25000baseKR_Full);
937 		ethtool_link_ksettings_add_link_mode(ks, supported,
938 						     20000baseKR2_Full);
939 		ethtool_link_ksettings_add_link_mode(ks, supported,
940 						     10000baseKR_Full);
941 		ethtool_link_ksettings_add_link_mode(ks, supported,
942 						     10000baseKX4_Full);
943 		ethtool_link_ksettings_add_link_mode(ks, supported,
944 						     1000baseKX_Full);
945 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
946 		ethtool_link_ksettings_add_link_mode(ks, advertising,
947 						     40000baseKR4_Full);
948 		ethtool_link_ksettings_add_link_mode(ks, advertising,
949 						     25000baseKR_Full);
950 		i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
951 		ethtool_link_ksettings_add_link_mode(ks, advertising,
952 						     20000baseKR2_Full);
953 		ethtool_link_ksettings_add_link_mode(ks, advertising,
954 						     10000baseKR_Full);
955 		ethtool_link_ksettings_add_link_mode(ks, advertising,
956 						     10000baseKX4_Full);
957 		ethtool_link_ksettings_add_link_mode(ks, advertising,
958 						     1000baseKX_Full);
959 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
960 		break;
961 	case I40E_PHY_TYPE_25GBASE_CR:
962 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
963 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
964 		ethtool_link_ksettings_add_link_mode(ks, supported,
965 						     25000baseCR_Full);
966 		ethtool_link_ksettings_add_link_mode(ks, advertising,
967 						     25000baseCR_Full);
968 		i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
969 
970 		break;
971 	case I40E_PHY_TYPE_25GBASE_AOC:
972 	case I40E_PHY_TYPE_25GBASE_ACC:
973 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
974 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
975 		ethtool_link_ksettings_add_link_mode(ks, supported,
976 						     25000baseCR_Full);
977 		ethtool_link_ksettings_add_link_mode(ks, advertising,
978 						     25000baseCR_Full);
979 		i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
980 
981 		ethtool_link_ksettings_add_link_mode(ks, supported,
982 						     10000baseCR_Full);
983 		ethtool_link_ksettings_add_link_mode(ks, advertising,
984 						     10000baseCR_Full);
985 		break;
986 	default:
987 		/* if we got here and link is up something bad is afoot */
988 		netdev_info(netdev,
989 			    "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n",
990 			    hw_link_info->phy_type);
991 	}
992 
993 	/* Now that we've worked out everything that could be supported by the
994 	 * current PHY type, get what is supported by the NVM and intersect
995 	 * them to get what is truly supported
996 	 */
997 	memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
998 	i40e_phy_type_to_ethtool(pf, &cap_ksettings);
999 	ethtool_intersect_link_masks(ks, &cap_ksettings);
1000 
1001 	/* Set speed and duplex */
1002 	switch (link_speed) {
1003 	case I40E_LINK_SPEED_40GB:
1004 		ks->base.speed = SPEED_40000;
1005 		break;
1006 	case I40E_LINK_SPEED_25GB:
1007 		ks->base.speed = SPEED_25000;
1008 		break;
1009 	case I40E_LINK_SPEED_20GB:
1010 		ks->base.speed = SPEED_20000;
1011 		break;
1012 	case I40E_LINK_SPEED_10GB:
1013 		ks->base.speed = SPEED_10000;
1014 		break;
1015 	case I40E_LINK_SPEED_5GB:
1016 		ks->base.speed = SPEED_5000;
1017 		break;
1018 	case I40E_LINK_SPEED_2_5GB:
1019 		ks->base.speed = SPEED_2500;
1020 		break;
1021 	case I40E_LINK_SPEED_1GB:
1022 		ks->base.speed = SPEED_1000;
1023 		break;
1024 	case I40E_LINK_SPEED_100MB:
1025 		ks->base.speed = SPEED_100;
1026 		break;
1027 	default:
1028 		ks->base.speed = SPEED_UNKNOWN;
1029 		break;
1030 	}
1031 	ks->base.duplex = DUPLEX_FULL;
1032 }
1033 
1034 /**
1035  * i40e_get_settings_link_down - Get the Link settings for when link is down
1036  * @hw: hw structure
1037  * @ks: ethtool ksettings to fill in
1038  * @pf: pointer to physical function struct
1039  *
1040  * Reports link settings that can be determined when link is down
1041  **/
1042 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1043 					struct ethtool_link_ksettings *ks,
1044 					struct i40e_pf *pf)
1045 {
1046 	/* link is down and the driver needs to fall back on
1047 	 * supported phy types to figure out what info to display
1048 	 */
1049 	i40e_phy_type_to_ethtool(pf, ks);
1050 
1051 	/* With no link speed and duplex are unknown */
1052 	ks->base.speed = SPEED_UNKNOWN;
1053 	ks->base.duplex = DUPLEX_UNKNOWN;
1054 }
1055 
1056 /**
1057  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1058  * @netdev: network interface device structure
1059  * @ks: ethtool ksettings
1060  *
1061  * Reports speed/duplex settings based on media_type
1062  **/
1063 static int i40e_get_link_ksettings(struct net_device *netdev,
1064 				   struct ethtool_link_ksettings *ks)
1065 {
1066 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1067 	struct i40e_pf *pf = np->vsi->back;
1068 	struct i40e_hw *hw = &pf->hw;
1069 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1070 	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1071 
1072 	ethtool_link_ksettings_zero_link_mode(ks, supported);
1073 	ethtool_link_ksettings_zero_link_mode(ks, advertising);
1074 
1075 	if (link_up)
1076 		i40e_get_settings_link_up(hw, ks, netdev, pf);
1077 	else
1078 		i40e_get_settings_link_down(hw, ks, pf);
1079 
1080 	/* Now set the settings that don't rely on link being up/down */
1081 	/* Set autoneg settings */
1082 	ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1083 			    AUTONEG_ENABLE : AUTONEG_DISABLE);
1084 
1085 	/* Set media type settings */
1086 	switch (hw->phy.media_type) {
1087 	case I40E_MEDIA_TYPE_BACKPLANE:
1088 		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1089 		ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1090 		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1091 		ethtool_link_ksettings_add_link_mode(ks, advertising,
1092 						     Backplane);
1093 		ks->base.port = PORT_NONE;
1094 		break;
1095 	case I40E_MEDIA_TYPE_BASET:
1096 		ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1097 		ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1098 		ks->base.port = PORT_TP;
1099 		break;
1100 	case I40E_MEDIA_TYPE_DA:
1101 	case I40E_MEDIA_TYPE_CX4:
1102 		ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1103 		ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1104 		ks->base.port = PORT_DA;
1105 		break;
1106 	case I40E_MEDIA_TYPE_FIBER:
1107 		ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1108 		ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1109 		ks->base.port = PORT_FIBRE;
1110 		break;
1111 	case I40E_MEDIA_TYPE_UNKNOWN:
1112 	default:
1113 		ks->base.port = PORT_OTHER;
1114 		break;
1115 	}
1116 
1117 	/* Set flow control settings */
1118 	ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1119 	ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1120 
1121 	switch (hw->fc.requested_mode) {
1122 	case I40E_FC_FULL:
1123 		ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1124 		break;
1125 	case I40E_FC_TX_PAUSE:
1126 		ethtool_link_ksettings_add_link_mode(ks, advertising,
1127 						     Asym_Pause);
1128 		break;
1129 	case I40E_FC_RX_PAUSE:
1130 		ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1131 		ethtool_link_ksettings_add_link_mode(ks, advertising,
1132 						     Asym_Pause);
1133 		break;
1134 	default:
1135 		ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1136 		ethtool_link_ksettings_del_link_mode(ks, advertising,
1137 						     Asym_Pause);
1138 		break;
1139 	}
1140 
1141 	return 0;
1142 }
1143 
1144 #define I40E_LBIT_SIZE 8
1145 /**
1146  * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed
1147  * @speed: speed in decimal
1148  * @ks: ethtool ksettings
1149  *
1150  * Return i40e_aq_link_speed based on speed
1151  **/
1152 static enum i40e_aq_link_speed
1153 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks)
1154 {
1155 	enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN;
1156 	bool speed_changed = false;
1157 	int i, j;
1158 
1159 	static const struct {
1160 		__u32 speed;
1161 		enum i40e_aq_link_speed link_speed;
1162 		__u8 bit[I40E_LBIT_SIZE];
1163 	} i40e_speed_lut[] = {
1164 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT
1165 		{SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} },
1166 		{SPEED_1000, I40E_LINK_SPEED_1GB,
1167 		 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX),
1168 		  I40E_LBIT(1000baseKX)} },
1169 		{SPEED_10000, I40E_LINK_SPEED_10GB,
1170 		 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR),
1171 		  I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR),
1172 		  I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} },
1173 
1174 		{SPEED_25000, I40E_LINK_SPEED_25GB,
1175 		 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR),
1176 		  I40E_LBIT(25000baseSR)} },
1177 		{SPEED_40000, I40E_LINK_SPEED_40GB,
1178 		 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4),
1179 		  I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} },
1180 		{SPEED_20000, I40E_LINK_SPEED_20GB,
1181 		 {I40E_LBIT(20000baseKR2)} },
1182 		{SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} },
1183 		{SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} }
1184 #undef I40E_LBIT
1185 };
1186 
1187 	for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) {
1188 		if (i40e_speed_lut[i].speed == speed) {
1189 			for (j = 0; j < I40E_LBIT_SIZE; j++) {
1190 				if (test_bit(i40e_speed_lut[i].bit[j],
1191 					     ks->link_modes.supported)) {
1192 					speed_changed = true;
1193 					break;
1194 				}
1195 				if (!i40e_speed_lut[i].bit[j])
1196 					break;
1197 			}
1198 			if (speed_changed) {
1199 				link_speed = i40e_speed_lut[i].link_speed;
1200 				break;
1201 			}
1202 		}
1203 	}
1204 	return link_speed;
1205 }
1206 
1207 #undef I40E_LBIT_SIZE
1208 
1209 /**
1210  * i40e_set_link_ksettings - Set Speed and Duplex
1211  * @netdev: network interface device structure
1212  * @ks: ethtool ksettings
1213  *
1214  * Set speed/duplex per media_types advertised/forced
1215  **/
1216 static int i40e_set_link_ksettings(struct net_device *netdev,
1217 				   const struct ethtool_link_ksettings *ks)
1218 {
1219 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1220 	struct i40e_aq_get_phy_abilities_resp abilities;
1221 	struct ethtool_link_ksettings safe_ks;
1222 	struct ethtool_link_ksettings copy_ks;
1223 	struct i40e_aq_set_phy_config config;
1224 	struct i40e_pf *pf = np->vsi->back;
1225 	enum i40e_aq_link_speed link_speed;
1226 	struct i40e_vsi *vsi = np->vsi;
1227 	struct i40e_hw *hw = &pf->hw;
1228 	bool autoneg_changed = false;
1229 	i40e_status status = 0;
1230 	int timeout = 50;
1231 	int err = 0;
1232 	__u32 speed;
1233 	u8 autoneg;
1234 
1235 	/* Changing port settings is not supported if this isn't the
1236 	 * port's controlling PF
1237 	 */
1238 	if (hw->partition_id != 1) {
1239 		i40e_partition_setting_complaint(pf);
1240 		return -EOPNOTSUPP;
1241 	}
1242 	if (vsi != pf->vsi[pf->lan_vsi])
1243 		return -EOPNOTSUPP;
1244 	if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1245 	    hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1246 	    hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1247 	    hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1248 	    hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1249 		return -EOPNOTSUPP;
1250 	if (hw->device_id == I40E_DEV_ID_KX_B ||
1251 	    hw->device_id == I40E_DEV_ID_KX_C ||
1252 	    hw->device_id == I40E_DEV_ID_20G_KR2 ||
1253 	    hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1254 	    hw->device_id == I40E_DEV_ID_25G_B ||
1255 	    hw->device_id == I40E_DEV_ID_KX_X722) {
1256 		netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1257 		return -EOPNOTSUPP;
1258 	}
1259 
1260 	/* copy the ksettings to copy_ks to avoid modifying the origin */
1261 	memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
1262 
1263 	/* save autoneg out of ksettings */
1264 	autoneg = copy_ks.base.autoneg;
1265 	speed = copy_ks.base.speed;
1266 
1267 	/* get our own copy of the bits to check against */
1268 	memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1269 	safe_ks.base.cmd = copy_ks.base.cmd;
1270 	safe_ks.base.link_mode_masks_nwords =
1271 		copy_ks.base.link_mode_masks_nwords;
1272 	i40e_get_link_ksettings(netdev, &safe_ks);
1273 
1274 	/* Get link modes supported by hardware and check against modes
1275 	 * requested by the user.  Return an error if unsupported mode was set.
1276 	 */
1277 	if (!bitmap_subset(copy_ks.link_modes.advertising,
1278 			   safe_ks.link_modes.supported,
1279 			   __ETHTOOL_LINK_MODE_MASK_NBITS))
1280 		return -EINVAL;
1281 
1282 	/* set autoneg back to what it currently is */
1283 	copy_ks.base.autoneg = safe_ks.base.autoneg;
1284 	copy_ks.base.speed  = safe_ks.base.speed;
1285 
1286 	/* If copy_ks.base and safe_ks.base are not the same now, then they are
1287 	 * trying to set something that we do not support.
1288 	 */
1289 	if (memcmp(&copy_ks.base, &safe_ks.base,
1290 		   sizeof(struct ethtool_link_settings)))
1291 		return -EOPNOTSUPP;
1292 
1293 	while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1294 		timeout--;
1295 		if (!timeout)
1296 			return -EBUSY;
1297 		usleep_range(1000, 2000);
1298 	}
1299 
1300 	/* Get the current phy config */
1301 	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1302 					      NULL);
1303 	if (status) {
1304 		err = -EAGAIN;
1305 		goto done;
1306 	}
1307 
1308 	/* Copy abilities to config in case autoneg is not
1309 	 * set below
1310 	 */
1311 	memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1312 	config.abilities = abilities.abilities;
1313 
1314 	/* Check autoneg */
1315 	if (autoneg == AUTONEG_ENABLE) {
1316 		/* If autoneg was not already enabled */
1317 		if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1318 			/* If autoneg is not supported, return error */
1319 			if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1320 								   supported,
1321 								   Autoneg)) {
1322 				netdev_info(netdev, "Autoneg not supported on this phy\n");
1323 				err = -EINVAL;
1324 				goto done;
1325 			}
1326 			/* Autoneg is allowed to change */
1327 			config.abilities = abilities.abilities |
1328 					   I40E_AQ_PHY_ENABLE_AN;
1329 			autoneg_changed = true;
1330 		}
1331 	} else {
1332 		/* If autoneg is currently enabled */
1333 		if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1334 			/* If autoneg is supported 10GBASE_T is the only PHY
1335 			 * that can disable it, so otherwise return error
1336 			 */
1337 			if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1338 								  supported,
1339 								  Autoneg) &&
1340 			    hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1341 				netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1342 				err = -EINVAL;
1343 				goto done;
1344 			}
1345 			/* Autoneg is allowed to change */
1346 			config.abilities = abilities.abilities &
1347 					   ~I40E_AQ_PHY_ENABLE_AN;
1348 			autoneg_changed = true;
1349 		}
1350 	}
1351 
1352 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1353 						  100baseT_Full))
1354 		config.link_speed |= I40E_LINK_SPEED_100MB;
1355 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1356 						  1000baseT_Full) ||
1357 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1358 						  1000baseX_Full) ||
1359 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1360 						  1000baseKX_Full))
1361 		config.link_speed |= I40E_LINK_SPEED_1GB;
1362 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1363 						  10000baseT_Full) ||
1364 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1365 						  10000baseKX4_Full) ||
1366 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1367 						  10000baseKR_Full) ||
1368 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1369 						  10000baseCR_Full) ||
1370 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1371 						  10000baseSR_Full) ||
1372 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1373 						  10000baseLR_Full))
1374 		config.link_speed |= I40E_LINK_SPEED_10GB;
1375 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1376 						  2500baseT_Full))
1377 		config.link_speed |= I40E_LINK_SPEED_2_5GB;
1378 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1379 						  5000baseT_Full))
1380 		config.link_speed |= I40E_LINK_SPEED_5GB;
1381 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1382 						  20000baseKR2_Full))
1383 		config.link_speed |= I40E_LINK_SPEED_20GB;
1384 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1385 						  25000baseCR_Full) ||
1386 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1387 						  25000baseKR_Full) ||
1388 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1389 						  25000baseSR_Full))
1390 		config.link_speed |= I40E_LINK_SPEED_25GB;
1391 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1392 						  40000baseKR4_Full) ||
1393 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1394 						  40000baseCR4_Full) ||
1395 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1396 						  40000baseSR4_Full) ||
1397 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
1398 						  40000baseLR4_Full))
1399 		config.link_speed |= I40E_LINK_SPEED_40GB;
1400 
1401 	/* Autonegotiation must be disabled to change speed */
1402 	if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) &&
1403 	    (autoneg == AUTONEG_DISABLE ||
1404 	    (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) {
1405 		link_speed = i40e_speed_to_link_speed(speed, ks);
1406 		if (link_speed == I40E_LINK_SPEED_UNKNOWN) {
1407 			netdev_info(netdev, "Given speed is not supported\n");
1408 			err = -EOPNOTSUPP;
1409 			goto done;
1410 		} else {
1411 			config.link_speed = link_speed;
1412 		}
1413 	} else {
1414 		if (safe_ks.base.speed != speed) {
1415 			netdev_info(netdev,
1416 				    "Unable to set speed, disable autoneg\n");
1417 			err = -EOPNOTSUPP;
1418 			goto done;
1419 		}
1420 	}
1421 
1422 	/* If speed didn't get set, set it to what it currently is.
1423 	 * This is needed because if advertise is 0 (as it is when autoneg
1424 	 * is disabled) then speed won't get set.
1425 	 */
1426 	if (!config.link_speed)
1427 		config.link_speed = abilities.link_speed;
1428 	if (autoneg_changed || abilities.link_speed != config.link_speed) {
1429 		/* copy over the rest of the abilities */
1430 		config.phy_type = abilities.phy_type;
1431 		config.phy_type_ext = abilities.phy_type_ext;
1432 		config.eee_capability = abilities.eee_capability;
1433 		config.eeer = abilities.eeer_val;
1434 		config.low_power_ctrl = abilities.d3_lpan;
1435 		config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1436 				    I40E_AQ_PHY_FEC_CONFIG_MASK;
1437 
1438 		/* save the requested speeds */
1439 		hw->phy.link_info.requested_speeds = config.link_speed;
1440 		/* set link and auto negotiation so changes take effect */
1441 		config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1442 		/* If link is up put link down */
1443 		if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1444 			/* Tell the OS link is going down, the link will go
1445 			 * back up when fw says it is ready asynchronously
1446 			 */
1447 			i40e_print_link_message(vsi, false);
1448 			netif_carrier_off(netdev);
1449 			netif_tx_stop_all_queues(netdev);
1450 		}
1451 
1452 		/* make the aq call */
1453 		status = i40e_aq_set_phy_config(hw, &config, NULL);
1454 		if (status) {
1455 			netdev_info(netdev,
1456 				    "Set phy config failed, err %s aq_err %s\n",
1457 				    i40e_stat_str(hw, status),
1458 				    i40e_aq_str(hw, hw->aq.asq_last_status));
1459 			err = -EAGAIN;
1460 			goto done;
1461 		}
1462 
1463 		status = i40e_update_link_info(hw);
1464 		if (status)
1465 			netdev_dbg(netdev,
1466 				   "Updating link info failed with err %s aq_err %s\n",
1467 				   i40e_stat_str(hw, status),
1468 				   i40e_aq_str(hw, hw->aq.asq_last_status));
1469 
1470 	} else {
1471 		netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1472 	}
1473 
1474 done:
1475 	clear_bit(__I40E_CONFIG_BUSY, pf->state);
1476 
1477 	return err;
1478 }
1479 
1480 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1481 {
1482 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1483 	struct i40e_aq_get_phy_abilities_resp abilities;
1484 	struct i40e_pf *pf = np->vsi->back;
1485 	struct i40e_hw *hw = &pf->hw;
1486 	i40e_status status = 0;
1487 	u32 flags = 0;
1488 	int err = 0;
1489 
1490 	flags = READ_ONCE(pf->flags);
1491 	i40e_set_fec_in_flags(fec_cfg, &flags);
1492 
1493 	/* Get the current phy config */
1494 	memset(&abilities, 0, sizeof(abilities));
1495 	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1496 					      NULL);
1497 	if (status) {
1498 		err = -EAGAIN;
1499 		goto done;
1500 	}
1501 
1502 	if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1503 		struct i40e_aq_set_phy_config config;
1504 
1505 		memset(&config, 0, sizeof(config));
1506 		config.phy_type = abilities.phy_type;
1507 		config.abilities = abilities.abilities |
1508 				   I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1509 		config.phy_type_ext = abilities.phy_type_ext;
1510 		config.link_speed = abilities.link_speed;
1511 		config.eee_capability = abilities.eee_capability;
1512 		config.eeer = abilities.eeer_val;
1513 		config.low_power_ctrl = abilities.d3_lpan;
1514 		config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1515 		status = i40e_aq_set_phy_config(hw, &config, NULL);
1516 		if (status) {
1517 			netdev_info(netdev,
1518 				    "Set phy config failed, err %s aq_err %s\n",
1519 				    i40e_stat_str(hw, status),
1520 				    i40e_aq_str(hw, hw->aq.asq_last_status));
1521 			err = -EAGAIN;
1522 			goto done;
1523 		}
1524 		pf->flags = flags;
1525 		status = i40e_update_link_info(hw);
1526 		if (status)
1527 			/* debug level message only due to relation to the link
1528 			 * itself rather than to the FEC settings
1529 			 * (e.g. no physical connection etc.)
1530 			 */
1531 			netdev_dbg(netdev,
1532 				   "Updating link info failed with err %s aq_err %s\n",
1533 				   i40e_stat_str(hw, status),
1534 				   i40e_aq_str(hw, hw->aq.asq_last_status));
1535 	}
1536 
1537 done:
1538 	return err;
1539 }
1540 
1541 static int i40e_get_fec_param(struct net_device *netdev,
1542 			      struct ethtool_fecparam *fecparam)
1543 {
1544 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1545 	struct i40e_aq_get_phy_abilities_resp abilities;
1546 	struct i40e_pf *pf = np->vsi->back;
1547 	struct i40e_hw *hw = &pf->hw;
1548 	i40e_status status = 0;
1549 	int err = 0;
1550 	u8 fec_cfg;
1551 
1552 	/* Get the current phy config */
1553 	memset(&abilities, 0, sizeof(abilities));
1554 	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1555 					      NULL);
1556 	if (status) {
1557 		err = -EAGAIN;
1558 		goto done;
1559 	}
1560 
1561 	fecparam->fec = 0;
1562 	fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1563 	if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1564 		fecparam->fec |= ETHTOOL_FEC_AUTO;
1565 	else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1566 		 I40E_AQ_SET_FEC_ABILITY_RS))
1567 		fecparam->fec |= ETHTOOL_FEC_RS;
1568 	else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1569 		 I40E_AQ_SET_FEC_ABILITY_KR))
1570 		fecparam->fec |= ETHTOOL_FEC_BASER;
1571 	if (fec_cfg == 0)
1572 		fecparam->fec |= ETHTOOL_FEC_OFF;
1573 
1574 	if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1575 		fecparam->active_fec = ETHTOOL_FEC_BASER;
1576 	else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1577 		fecparam->active_fec = ETHTOOL_FEC_RS;
1578 	else
1579 		fecparam->active_fec = ETHTOOL_FEC_OFF;
1580 done:
1581 	return err;
1582 }
1583 
1584 static int i40e_set_fec_param(struct net_device *netdev,
1585 			      struct ethtool_fecparam *fecparam)
1586 {
1587 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1588 	struct i40e_pf *pf = np->vsi->back;
1589 	struct i40e_hw *hw = &pf->hw;
1590 	u8 fec_cfg = 0;
1591 
1592 	if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1593 	    hw->device_id != I40E_DEV_ID_25G_B &&
1594 	    hw->device_id != I40E_DEV_ID_KX_X722)
1595 		return -EPERM;
1596 
1597 	if (hw->mac.type == I40E_MAC_X722 &&
1598 	    !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1599 		netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1600 		return -EOPNOTSUPP;
1601 	}
1602 
1603 	switch (fecparam->fec) {
1604 	case ETHTOOL_FEC_AUTO:
1605 		fec_cfg = I40E_AQ_SET_FEC_AUTO;
1606 		break;
1607 	case ETHTOOL_FEC_RS:
1608 		fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1609 			     I40E_AQ_SET_FEC_ABILITY_RS);
1610 		break;
1611 	case ETHTOOL_FEC_BASER:
1612 		fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1613 			     I40E_AQ_SET_FEC_ABILITY_KR);
1614 		break;
1615 	case ETHTOOL_FEC_OFF:
1616 	case ETHTOOL_FEC_NONE:
1617 		fec_cfg = 0;
1618 		break;
1619 	default:
1620 		dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1621 			 fecparam->fec);
1622 		return -EINVAL;
1623 	}
1624 
1625 	return i40e_set_fec_cfg(netdev, fec_cfg);
1626 }
1627 
1628 static int i40e_nway_reset(struct net_device *netdev)
1629 {
1630 	/* restart autonegotiation */
1631 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1632 	struct i40e_pf *pf = np->vsi->back;
1633 	struct i40e_hw *hw = &pf->hw;
1634 	bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1635 	i40e_status ret = 0;
1636 
1637 	ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1638 	if (ret) {
1639 		netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1640 			    i40e_stat_str(hw, ret),
1641 			    i40e_aq_str(hw, hw->aq.asq_last_status));
1642 		return -EIO;
1643 	}
1644 
1645 	return 0;
1646 }
1647 
1648 /**
1649  * i40e_get_pauseparam -  Get Flow Control status
1650  * @netdev: netdevice structure
1651  * @pause: buffer to return pause parameters
1652  *
1653  * Return tx/rx-pause status
1654  **/
1655 static void i40e_get_pauseparam(struct net_device *netdev,
1656 				struct ethtool_pauseparam *pause)
1657 {
1658 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1659 	struct i40e_pf *pf = np->vsi->back;
1660 	struct i40e_hw *hw = &pf->hw;
1661 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1662 	struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1663 
1664 	pause->autoneg =
1665 		((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1666 		  AUTONEG_ENABLE : AUTONEG_DISABLE);
1667 
1668 	/* PFC enabled so report LFC as off */
1669 	if (dcbx_cfg->pfc.pfcenable) {
1670 		pause->rx_pause = 0;
1671 		pause->tx_pause = 0;
1672 		return;
1673 	}
1674 
1675 	if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1676 		pause->rx_pause = 1;
1677 	} else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1678 		pause->tx_pause = 1;
1679 	} else if (hw->fc.current_mode == I40E_FC_FULL) {
1680 		pause->rx_pause = 1;
1681 		pause->tx_pause = 1;
1682 	}
1683 }
1684 
1685 /**
1686  * i40e_set_pauseparam - Set Flow Control parameter
1687  * @netdev: network interface device structure
1688  * @pause: return tx/rx flow control status
1689  **/
1690 static int i40e_set_pauseparam(struct net_device *netdev,
1691 			       struct ethtool_pauseparam *pause)
1692 {
1693 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1694 	struct i40e_pf *pf = np->vsi->back;
1695 	struct i40e_vsi *vsi = np->vsi;
1696 	struct i40e_hw *hw = &pf->hw;
1697 	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1698 	struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1699 	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1700 	i40e_status status;
1701 	u8 aq_failures;
1702 	int err = 0;
1703 	u32 is_an;
1704 
1705 	/* Changing the port's flow control is not supported if this isn't the
1706 	 * port's controlling PF
1707 	 */
1708 	if (hw->partition_id != 1) {
1709 		i40e_partition_setting_complaint(pf);
1710 		return -EOPNOTSUPP;
1711 	}
1712 
1713 	if (vsi != pf->vsi[pf->lan_vsi])
1714 		return -EOPNOTSUPP;
1715 
1716 	is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1717 	if (pause->autoneg != is_an) {
1718 		netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1719 		return -EOPNOTSUPP;
1720 	}
1721 
1722 	/* If we have link and don't have autoneg */
1723 	if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1724 		/* Send message that it might not necessarily work*/
1725 		netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1726 	}
1727 
1728 	if (dcbx_cfg->pfc.pfcenable) {
1729 		netdev_info(netdev,
1730 			    "Priority flow control enabled. Cannot set link flow control.\n");
1731 		return -EOPNOTSUPP;
1732 	}
1733 
1734 	if (pause->rx_pause && pause->tx_pause)
1735 		hw->fc.requested_mode = I40E_FC_FULL;
1736 	else if (pause->rx_pause && !pause->tx_pause)
1737 		hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1738 	else if (!pause->rx_pause && pause->tx_pause)
1739 		hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1740 	else if (!pause->rx_pause && !pause->tx_pause)
1741 		hw->fc.requested_mode = I40E_FC_NONE;
1742 	else
1743 		return -EINVAL;
1744 
1745 	/* Tell the OS link is going down, the link will go back up when fw
1746 	 * says it is ready asynchronously
1747 	 */
1748 	i40e_print_link_message(vsi, false);
1749 	netif_carrier_off(netdev);
1750 	netif_tx_stop_all_queues(netdev);
1751 
1752 	/* Set the fc mode and only restart an if link is up*/
1753 	status = i40e_set_fc(hw, &aq_failures, link_up);
1754 
1755 	if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1756 		netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1757 			    i40e_stat_str(hw, status),
1758 			    i40e_aq_str(hw, hw->aq.asq_last_status));
1759 		err = -EAGAIN;
1760 	}
1761 	if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1762 		netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1763 			    i40e_stat_str(hw, status),
1764 			    i40e_aq_str(hw, hw->aq.asq_last_status));
1765 		err = -EAGAIN;
1766 	}
1767 	if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1768 		netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1769 			    i40e_stat_str(hw, status),
1770 			    i40e_aq_str(hw, hw->aq.asq_last_status));
1771 		err = -EAGAIN;
1772 	}
1773 
1774 	if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1775 		/* Give it a little more time to try to come back */
1776 		msleep(75);
1777 		if (!test_bit(__I40E_DOWN, pf->state))
1778 			return i40e_nway_reset(netdev);
1779 	}
1780 
1781 	return err;
1782 }
1783 
1784 static u32 i40e_get_msglevel(struct net_device *netdev)
1785 {
1786 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1787 	struct i40e_pf *pf = np->vsi->back;
1788 	u32 debug_mask = pf->hw.debug_mask;
1789 
1790 	if (debug_mask)
1791 		netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1792 
1793 	return pf->msg_enable;
1794 }
1795 
1796 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1797 {
1798 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1799 	struct i40e_pf *pf = np->vsi->back;
1800 
1801 	if (I40E_DEBUG_USER & data)
1802 		pf->hw.debug_mask = data;
1803 	else
1804 		pf->msg_enable = data;
1805 }
1806 
1807 static int i40e_get_regs_len(struct net_device *netdev)
1808 {
1809 	int reg_count = 0;
1810 	int i;
1811 
1812 	for (i = 0; i40e_reg_list[i].offset != 0; i++)
1813 		reg_count += i40e_reg_list[i].elements;
1814 
1815 	return reg_count * sizeof(u32);
1816 }
1817 
1818 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1819 			  void *p)
1820 {
1821 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1822 	struct i40e_pf *pf = np->vsi->back;
1823 	struct i40e_hw *hw = &pf->hw;
1824 	u32 *reg_buf = p;
1825 	unsigned int i, j, ri;
1826 	u32 reg;
1827 
1828 	/* Tell ethtool which driver-version-specific regs output we have.
1829 	 *
1830 	 * At some point, if we have ethtool doing special formatting of
1831 	 * this data, it will rely on this version number to know how to
1832 	 * interpret things.  Hence, this needs to be updated if/when the
1833 	 * diags register table is changed.
1834 	 */
1835 	regs->version = 1;
1836 
1837 	/* loop through the diags reg table for what to print */
1838 	ri = 0;
1839 	for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1840 		for (j = 0; j < i40e_reg_list[i].elements; j++) {
1841 			reg = i40e_reg_list[i].offset
1842 				+ (j * i40e_reg_list[i].stride);
1843 			reg_buf[ri++] = rd32(hw, reg);
1844 		}
1845 	}
1846 
1847 }
1848 
1849 static int i40e_get_eeprom(struct net_device *netdev,
1850 			   struct ethtool_eeprom *eeprom, u8 *bytes)
1851 {
1852 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1853 	struct i40e_hw *hw = &np->vsi->back->hw;
1854 	struct i40e_pf *pf = np->vsi->back;
1855 	int ret_val = 0, len, offset;
1856 	u8 *eeprom_buff;
1857 	u16 i, sectors;
1858 	bool last;
1859 	u32 magic;
1860 
1861 #define I40E_NVM_SECTOR_SIZE  4096
1862 	if (eeprom->len == 0)
1863 		return -EINVAL;
1864 
1865 	/* check for NVMUpdate access method */
1866 	magic = hw->vendor_id | (hw->device_id << 16);
1867 	if (eeprom->magic && eeprom->magic != magic) {
1868 		struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1869 		int errno = 0;
1870 
1871 		/* make sure it is the right magic for NVMUpdate */
1872 		if ((eeprom->magic >> 16) != hw->device_id)
1873 			errno = -EINVAL;
1874 		else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1875 			 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1876 			errno = -EBUSY;
1877 		else
1878 			ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1879 
1880 		if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1881 			dev_info(&pf->pdev->dev,
1882 				 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1883 				 ret_val, hw->aq.asq_last_status, errno,
1884 				 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1885 				 cmd->offset, cmd->data_size);
1886 
1887 		return errno;
1888 	}
1889 
1890 	/* normal ethtool get_eeprom support */
1891 	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1892 
1893 	eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1894 	if (!eeprom_buff)
1895 		return -ENOMEM;
1896 
1897 	ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1898 	if (ret_val) {
1899 		dev_info(&pf->pdev->dev,
1900 			 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1901 			 ret_val, hw->aq.asq_last_status);
1902 		goto free_buff;
1903 	}
1904 
1905 	sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1906 	sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1907 	len = I40E_NVM_SECTOR_SIZE;
1908 	last = false;
1909 	for (i = 0; i < sectors; i++) {
1910 		if (i == (sectors - 1)) {
1911 			len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1912 			last = true;
1913 		}
1914 		offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1915 		ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1916 				(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1917 				last, NULL);
1918 		if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1919 			dev_info(&pf->pdev->dev,
1920 				 "read NVM failed, invalid offset 0x%x\n",
1921 				 offset);
1922 			break;
1923 		} else if (ret_val &&
1924 			   hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1925 			dev_info(&pf->pdev->dev,
1926 				 "read NVM failed, access, offset 0x%x\n",
1927 				 offset);
1928 			break;
1929 		} else if (ret_val) {
1930 			dev_info(&pf->pdev->dev,
1931 				 "read NVM failed offset %d err=%d status=0x%x\n",
1932 				 offset, ret_val, hw->aq.asq_last_status);
1933 			break;
1934 		}
1935 	}
1936 
1937 	i40e_release_nvm(hw);
1938 	memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1939 free_buff:
1940 	kfree(eeprom_buff);
1941 	return ret_val;
1942 }
1943 
1944 static int i40e_get_eeprom_len(struct net_device *netdev)
1945 {
1946 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1947 	struct i40e_hw *hw = &np->vsi->back->hw;
1948 	u32 val;
1949 
1950 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1951 	if (hw->mac.type == I40E_MAC_X722) {
1952 		val = X722_EEPROM_SCOPE_LIMIT + 1;
1953 		return val;
1954 	}
1955 	val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1956 		& I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1957 		>> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1958 	/* register returns value in power of 2, 64Kbyte chunks. */
1959 	val = (64 * 1024) * BIT(val);
1960 	return val;
1961 }
1962 
1963 static int i40e_set_eeprom(struct net_device *netdev,
1964 			   struct ethtool_eeprom *eeprom, u8 *bytes)
1965 {
1966 	struct i40e_netdev_priv *np = netdev_priv(netdev);
1967 	struct i40e_hw *hw = &np->vsi->back->hw;
1968 	struct i40e_pf *pf = np->vsi->back;
1969 	struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1970 	int ret_val = 0;
1971 	int errno = 0;
1972 	u32 magic;
1973 
1974 	/* normal ethtool set_eeprom is not supported */
1975 	magic = hw->vendor_id | (hw->device_id << 16);
1976 	if (eeprom->magic == magic)
1977 		errno = -EOPNOTSUPP;
1978 	/* check for NVMUpdate access method */
1979 	else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1980 		errno = -EINVAL;
1981 	else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1982 		 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1983 		errno = -EBUSY;
1984 	else
1985 		ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1986 
1987 	if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1988 		dev_info(&pf->pdev->dev,
1989 			 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1990 			 ret_val, hw->aq.asq_last_status, errno,
1991 			 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1992 			 cmd->offset, cmd->data_size);
1993 
1994 	return errno;
1995 }
1996 
1997 static void i40e_get_drvinfo(struct net_device *netdev,
1998 			     struct ethtool_drvinfo *drvinfo)
1999 {
2000 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2001 	struct i40e_vsi *vsi = np->vsi;
2002 	struct i40e_pf *pf = vsi->back;
2003 
2004 	strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
2005 	strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
2006 		sizeof(drvinfo->fw_version));
2007 	strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
2008 		sizeof(drvinfo->bus_info));
2009 	drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
2010 	if (pf->hw.pf_id == 0)
2011 		drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
2012 }
2013 
2014 static void i40e_get_ringparam(struct net_device *netdev,
2015 			       struct ethtool_ringparam *ring,
2016 			       struct kernel_ethtool_ringparam *kernel_ring,
2017 			       struct netlink_ext_ack *extack)
2018 {
2019 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2020 	struct i40e_pf *pf = np->vsi->back;
2021 	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
2022 
2023 	ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
2024 	ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
2025 	ring->rx_mini_max_pending = 0;
2026 	ring->rx_jumbo_max_pending = 0;
2027 	ring->rx_pending = vsi->rx_rings[0]->count;
2028 	ring->tx_pending = vsi->tx_rings[0]->count;
2029 	ring->rx_mini_pending = 0;
2030 	ring->rx_jumbo_pending = 0;
2031 }
2032 
2033 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
2034 {
2035 	if (i40e_enabled_xdp_vsi(vsi)) {
2036 		return index < vsi->num_queue_pairs ||
2037 			(index >= vsi->alloc_queue_pairs &&
2038 			 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
2039 	}
2040 
2041 	return index < vsi->num_queue_pairs;
2042 }
2043 
2044 static int i40e_set_ringparam(struct net_device *netdev,
2045 			      struct ethtool_ringparam *ring,
2046 			      struct kernel_ethtool_ringparam *kernel_ring,
2047 			      struct netlink_ext_ack *extack)
2048 {
2049 	struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
2050 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2051 	struct i40e_hw *hw = &np->vsi->back->hw;
2052 	struct i40e_vsi *vsi = np->vsi;
2053 	struct i40e_pf *pf = vsi->back;
2054 	u32 new_rx_count, new_tx_count;
2055 	u16 tx_alloc_queue_pairs;
2056 	int timeout = 50;
2057 	int i, err = 0;
2058 
2059 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
2060 		return -EINVAL;
2061 
2062 	if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
2063 	    ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
2064 	    ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
2065 	    ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
2066 		netdev_info(netdev,
2067 			    "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
2068 			    ring->tx_pending, ring->rx_pending,
2069 			    I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
2070 		return -EINVAL;
2071 	}
2072 
2073 	new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2074 	new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2075 
2076 	/* if nothing to do return success */
2077 	if ((new_tx_count == vsi->tx_rings[0]->count) &&
2078 	    (new_rx_count == vsi->rx_rings[0]->count))
2079 		return 0;
2080 
2081 	/* If there is a AF_XDP page pool attached to any of Rx rings,
2082 	 * disallow changing the number of descriptors -- regardless
2083 	 * if the netdev is running or not.
2084 	 */
2085 	if (i40e_xsk_any_rx_ring_enabled(vsi))
2086 		return -EBUSY;
2087 
2088 	while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
2089 		timeout--;
2090 		if (!timeout)
2091 			return -EBUSY;
2092 		usleep_range(1000, 2000);
2093 	}
2094 
2095 	if (!netif_running(vsi->netdev)) {
2096 		/* simple case - set for the next time the netdev is started */
2097 		for (i = 0; i < vsi->num_queue_pairs; i++) {
2098 			vsi->tx_rings[i]->count = new_tx_count;
2099 			vsi->rx_rings[i]->count = new_rx_count;
2100 			if (i40e_enabled_xdp_vsi(vsi))
2101 				vsi->xdp_rings[i]->count = new_tx_count;
2102 		}
2103 		vsi->num_tx_desc = new_tx_count;
2104 		vsi->num_rx_desc = new_rx_count;
2105 		goto done;
2106 	}
2107 
2108 	/* We can't just free everything and then setup again,
2109 	 * because the ISRs in MSI-X mode get passed pointers
2110 	 * to the Tx and Rx ring structs.
2111 	 */
2112 
2113 	/* alloc updated Tx and XDP Tx resources */
2114 	tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2115 			       (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2116 	if (new_tx_count != vsi->tx_rings[0]->count) {
2117 		netdev_info(netdev,
2118 			    "Changing Tx descriptor count from %d to %d.\n",
2119 			    vsi->tx_rings[0]->count, new_tx_count);
2120 		tx_rings = kcalloc(tx_alloc_queue_pairs,
2121 				   sizeof(struct i40e_ring), GFP_KERNEL);
2122 		if (!tx_rings) {
2123 			err = -ENOMEM;
2124 			goto done;
2125 		}
2126 
2127 		for (i = 0; i < tx_alloc_queue_pairs; i++) {
2128 			if (!i40e_active_tx_ring_index(vsi, i))
2129 				continue;
2130 
2131 			tx_rings[i] = *vsi->tx_rings[i];
2132 			tx_rings[i].count = new_tx_count;
2133 			/* the desc and bi pointers will be reallocated in the
2134 			 * setup call
2135 			 */
2136 			tx_rings[i].desc = NULL;
2137 			tx_rings[i].rx_bi = NULL;
2138 			err = i40e_setup_tx_descriptors(&tx_rings[i]);
2139 			if (err) {
2140 				while (i) {
2141 					i--;
2142 					if (!i40e_active_tx_ring_index(vsi, i))
2143 						continue;
2144 					i40e_free_tx_resources(&tx_rings[i]);
2145 				}
2146 				kfree(tx_rings);
2147 				tx_rings = NULL;
2148 
2149 				goto done;
2150 			}
2151 		}
2152 	}
2153 
2154 	/* alloc updated Rx resources */
2155 	if (new_rx_count != vsi->rx_rings[0]->count) {
2156 		netdev_info(netdev,
2157 			    "Changing Rx descriptor count from %d to %d\n",
2158 			    vsi->rx_rings[0]->count, new_rx_count);
2159 		rx_rings = kcalloc(vsi->alloc_queue_pairs,
2160 				   sizeof(struct i40e_ring), GFP_KERNEL);
2161 		if (!rx_rings) {
2162 			err = -ENOMEM;
2163 			goto free_tx;
2164 		}
2165 
2166 		for (i = 0; i < vsi->num_queue_pairs; i++) {
2167 			u16 unused;
2168 
2169 			/* clone ring and setup updated count */
2170 			rx_rings[i] = *vsi->rx_rings[i];
2171 			rx_rings[i].count = new_rx_count;
2172 			/* the desc and bi pointers will be reallocated in the
2173 			 * setup call
2174 			 */
2175 			rx_rings[i].desc = NULL;
2176 			rx_rings[i].rx_bi = NULL;
2177 			/* Clear cloned XDP RX-queue info before setup call */
2178 			memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2179 			/* this is to allow wr32 to have something to write to
2180 			 * during early allocation of Rx buffers
2181 			 */
2182 			rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2183 			err = i40e_setup_rx_descriptors(&rx_rings[i]);
2184 			if (err)
2185 				goto rx_unwind;
2186 			err = i40e_alloc_rx_bi(&rx_rings[i]);
2187 			if (err)
2188 				goto rx_unwind;
2189 
2190 			/* now allocate the Rx buffers to make sure the OS
2191 			 * has enough memory, any failure here means abort
2192 			 */
2193 			unused = I40E_DESC_UNUSED(&rx_rings[i]);
2194 			err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2195 rx_unwind:
2196 			if (err) {
2197 				do {
2198 					i40e_free_rx_resources(&rx_rings[i]);
2199 				} while (i--);
2200 				kfree(rx_rings);
2201 				rx_rings = NULL;
2202 
2203 				goto free_tx;
2204 			}
2205 		}
2206 	}
2207 
2208 	/* Bring interface down, copy in the new ring info,
2209 	 * then restore the interface
2210 	 */
2211 	i40e_down(vsi);
2212 
2213 	if (tx_rings) {
2214 		for (i = 0; i < tx_alloc_queue_pairs; i++) {
2215 			if (i40e_active_tx_ring_index(vsi, i)) {
2216 				i40e_free_tx_resources(vsi->tx_rings[i]);
2217 				*vsi->tx_rings[i] = tx_rings[i];
2218 			}
2219 		}
2220 		kfree(tx_rings);
2221 		tx_rings = NULL;
2222 	}
2223 
2224 	if (rx_rings) {
2225 		for (i = 0; i < vsi->num_queue_pairs; i++) {
2226 			i40e_free_rx_resources(vsi->rx_rings[i]);
2227 			/* get the real tail offset */
2228 			rx_rings[i].tail = vsi->rx_rings[i]->tail;
2229 			/* this is to fake out the allocation routine
2230 			 * into thinking it has to realloc everything
2231 			 * but the recycling logic will let us re-use
2232 			 * the buffers allocated above
2233 			 */
2234 			rx_rings[i].next_to_use = 0;
2235 			rx_rings[i].next_to_clean = 0;
2236 			rx_rings[i].next_to_alloc = 0;
2237 			/* do a struct copy */
2238 			*vsi->rx_rings[i] = rx_rings[i];
2239 		}
2240 		kfree(rx_rings);
2241 		rx_rings = NULL;
2242 	}
2243 
2244 	vsi->num_tx_desc = new_tx_count;
2245 	vsi->num_rx_desc = new_rx_count;
2246 	i40e_up(vsi);
2247 
2248 free_tx:
2249 	/* error cleanup if the Rx allocations failed after getting Tx */
2250 	if (tx_rings) {
2251 		for (i = 0; i < tx_alloc_queue_pairs; i++) {
2252 			if (i40e_active_tx_ring_index(vsi, i))
2253 				i40e_free_tx_resources(vsi->tx_rings[i]);
2254 		}
2255 		kfree(tx_rings);
2256 		tx_rings = NULL;
2257 	}
2258 
2259 done:
2260 	clear_bit(__I40E_CONFIG_BUSY, pf->state);
2261 
2262 	return err;
2263 }
2264 
2265 /**
2266  * i40e_get_stats_count - return the stats count for a device
2267  * @netdev: the netdev to return the count for
2268  *
2269  * Returns the total number of statistics for this netdev. Note that even
2270  * though this is a function, it is required that the count for a specific
2271  * netdev must never change. Basing the count on static values such as the
2272  * maximum number of queues or the device type is ok. However, the API for
2273  * obtaining stats is *not* safe against changes based on non-static
2274  * values such as the *current* number of queues, or runtime flags.
2275  *
2276  * If a statistic is not always enabled, return it as part of the count
2277  * anyways, always return its string, and report its value as zero.
2278  **/
2279 static int i40e_get_stats_count(struct net_device *netdev)
2280 {
2281 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2282 	struct i40e_vsi *vsi = np->vsi;
2283 	struct i40e_pf *pf = vsi->back;
2284 	int stats_len;
2285 
2286 	if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2287 		stats_len = I40E_PF_STATS_LEN;
2288 	else
2289 		stats_len = I40E_VSI_STATS_LEN;
2290 
2291 	/* The number of stats reported for a given net_device must remain
2292 	 * constant throughout the life of that device.
2293 	 *
2294 	 * This is because the API for obtaining the size, strings, and stats
2295 	 * is spread out over three separate ethtool ioctls. There is no safe
2296 	 * way to lock the number of stats across these calls, so we must
2297 	 * assume that they will never change.
2298 	 *
2299 	 * Due to this, we report the maximum number of queues, even if not
2300 	 * every queue is currently configured. Since we always allocate
2301 	 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2302 	 * works because the num_tx_queues is set at device creation and never
2303 	 * changes.
2304 	 */
2305 	stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2306 
2307 	return stats_len;
2308 }
2309 
2310 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2311 {
2312 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2313 	struct i40e_vsi *vsi = np->vsi;
2314 	struct i40e_pf *pf = vsi->back;
2315 
2316 	switch (sset) {
2317 	case ETH_SS_TEST:
2318 		return I40E_TEST_LEN;
2319 	case ETH_SS_STATS:
2320 		return i40e_get_stats_count(netdev);
2321 	case ETH_SS_PRIV_FLAGS:
2322 		return I40E_PRIV_FLAGS_STR_LEN +
2323 			(pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2324 	default:
2325 		return -EOPNOTSUPP;
2326 	}
2327 }
2328 
2329 /**
2330  * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2331  * @tc: the TC statistics in VEB structure (veb->tc_stats)
2332  * @i: the index of traffic class in (veb->tc_stats) structure to copy
2333  *
2334  * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2335  * one dimensional structure i40e_cp_veb_tc_stats.
2336  * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2337  * statistics for the given TC.
2338  **/
2339 static struct i40e_cp_veb_tc_stats
2340 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2341 {
2342 	struct i40e_cp_veb_tc_stats veb_tc = {
2343 		.tc_rx_packets = tc->tc_rx_packets[i],
2344 		.tc_rx_bytes = tc->tc_rx_bytes[i],
2345 		.tc_tx_packets = tc->tc_tx_packets[i],
2346 		.tc_tx_bytes = tc->tc_tx_bytes[i],
2347 	};
2348 
2349 	return veb_tc;
2350 }
2351 
2352 /**
2353  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2354  * @pf: the PF device structure
2355  * @i: the priority value to copy
2356  *
2357  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2358  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2359  * of the PFC stats for the given priority.
2360  **/
2361 static inline struct i40e_pfc_stats
2362 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2363 {
2364 #define I40E_GET_PFC_STAT(stat, priority) \
2365 	.stat = pf->stats.stat[priority]
2366 
2367 	struct i40e_pfc_stats pfc = {
2368 		I40E_GET_PFC_STAT(priority_xon_rx, i),
2369 		I40E_GET_PFC_STAT(priority_xoff_rx, i),
2370 		I40E_GET_PFC_STAT(priority_xon_tx, i),
2371 		I40E_GET_PFC_STAT(priority_xoff_tx, i),
2372 		I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2373 	};
2374 	return pfc;
2375 }
2376 
2377 /**
2378  * i40e_get_ethtool_stats - copy stat values into supplied buffer
2379  * @netdev: the netdev to collect stats for
2380  * @stats: ethtool stats command structure
2381  * @data: ethtool supplied buffer
2382  *
2383  * Copy the stats values for this netdev into the buffer. Expects data to be
2384  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2385  * statistics must be copied in a static order, and the count must not change
2386  * for a given netdev. See i40e_get_stats_count for more details.
2387  *
2388  * If a statistic is not currently valid (such as a disabled queue), this
2389  * function reports its value as zero.
2390  **/
2391 static void i40e_get_ethtool_stats(struct net_device *netdev,
2392 				   struct ethtool_stats *stats, u64 *data)
2393 {
2394 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2395 	struct i40e_vsi *vsi = np->vsi;
2396 	struct i40e_pf *pf = vsi->back;
2397 	struct i40e_veb *veb = NULL;
2398 	unsigned int i;
2399 	bool veb_stats;
2400 	u64 *p = data;
2401 
2402 	i40e_update_stats(vsi);
2403 
2404 	i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2405 			       i40e_gstrings_net_stats);
2406 
2407 	i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2408 
2409 	rcu_read_lock();
2410 	for (i = 0; i < netdev->num_tx_queues; i++) {
2411 		i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2412 		i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2413 	}
2414 	rcu_read_unlock();
2415 
2416 	if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2417 		goto check_data_pointer;
2418 
2419 	veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2420 		     (pf->lan_veb < I40E_MAX_VEB) &&
2421 		     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2422 
2423 	if (veb_stats) {
2424 		veb = pf->veb[pf->lan_veb];
2425 		i40e_update_veb_stats(veb);
2426 	}
2427 
2428 	/* If veb stats aren't enabled, pass NULL instead of the veb so that
2429 	 * we initialize stats to zero and update the data pointer
2430 	 * intelligently
2431 	 */
2432 	i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2433 			       i40e_gstrings_veb_stats);
2434 
2435 	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2436 		if (veb_stats) {
2437 			struct i40e_cp_veb_tc_stats veb_tc =
2438 				i40e_get_veb_tc_stats(&veb->tc_stats, i);
2439 
2440 			i40e_add_ethtool_stats(&data, &veb_tc,
2441 					       i40e_gstrings_veb_tc_stats);
2442 		} else {
2443 			i40e_add_ethtool_stats(&data, NULL,
2444 					       i40e_gstrings_veb_tc_stats);
2445 		}
2446 
2447 	i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2448 
2449 	for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2450 		struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2451 
2452 		i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2453 	}
2454 
2455 check_data_pointer:
2456 	WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2457 		  "ethtool stats count mismatch!");
2458 }
2459 
2460 /**
2461  * i40e_get_stat_strings - copy stat strings into supplied buffer
2462  * @netdev: the netdev to collect strings for
2463  * @data: supplied buffer to copy strings into
2464  *
2465  * Copy the strings related to stats for this netdev. Expects data to be
2466  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2467  * strings must be copied in a static order and the total count must not
2468  * change for a given netdev. See i40e_get_stats_count for more details.
2469  **/
2470 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2471 {
2472 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2473 	struct i40e_vsi *vsi = np->vsi;
2474 	struct i40e_pf *pf = vsi->back;
2475 	unsigned int i;
2476 	u8 *p = data;
2477 
2478 	i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2479 
2480 	i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2481 
2482 	for (i = 0; i < netdev->num_tx_queues; i++) {
2483 		i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2484 				      "tx", i);
2485 		i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2486 				      "rx", i);
2487 	}
2488 
2489 	if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2490 		goto check_data_pointer;
2491 
2492 	i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2493 
2494 	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2495 		i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2496 
2497 	i40e_add_stat_strings(&data, i40e_gstrings_stats);
2498 
2499 	for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2500 		i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2501 
2502 check_data_pointer:
2503 	WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2504 		  "stat strings count mismatch!");
2505 }
2506 
2507 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2508 {
2509 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2510 	struct i40e_vsi *vsi = np->vsi;
2511 	struct i40e_pf *pf = vsi->back;
2512 	unsigned int i;
2513 	u8 *p = data;
2514 
2515 	for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2516 		ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string);
2517 	if (pf->hw.pf_id != 0)
2518 		return;
2519 	for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2520 		ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2521 }
2522 
2523 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2524 			     u8 *data)
2525 {
2526 	switch (stringset) {
2527 	case ETH_SS_TEST:
2528 		memcpy(data, i40e_gstrings_test,
2529 		       I40E_TEST_LEN * ETH_GSTRING_LEN);
2530 		break;
2531 	case ETH_SS_STATS:
2532 		i40e_get_stat_strings(netdev, data);
2533 		break;
2534 	case ETH_SS_PRIV_FLAGS:
2535 		i40e_get_priv_flag_strings(netdev, data);
2536 		break;
2537 	default:
2538 		break;
2539 	}
2540 }
2541 
2542 static int i40e_get_ts_info(struct net_device *dev,
2543 			    struct ethtool_ts_info *info)
2544 {
2545 	struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2546 
2547 	/* only report HW timestamping if PTP is enabled */
2548 	if (!(pf->flags & I40E_FLAG_PTP))
2549 		return ethtool_op_get_ts_info(dev, info);
2550 
2551 	info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2552 				SOF_TIMESTAMPING_RX_SOFTWARE |
2553 				SOF_TIMESTAMPING_SOFTWARE |
2554 				SOF_TIMESTAMPING_TX_HARDWARE |
2555 				SOF_TIMESTAMPING_RX_HARDWARE |
2556 				SOF_TIMESTAMPING_RAW_HARDWARE;
2557 
2558 	if (pf->ptp_clock)
2559 		info->phc_index = ptp_clock_index(pf->ptp_clock);
2560 	else
2561 		info->phc_index = -1;
2562 
2563 	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2564 
2565 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2566 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2567 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2568 			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2569 
2570 	if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2571 		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2572 				    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2573 				    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2574 				    BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2575 				    BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2576 				    BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2577 				    BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2578 				    BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2579 
2580 	return 0;
2581 }
2582 
2583 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2584 {
2585 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2586 	struct i40e_pf *pf = np->vsi->back;
2587 	i40e_status status;
2588 	bool link_up = false;
2589 
2590 	netif_info(pf, hw, netdev, "link test\n");
2591 	status = i40e_get_link_status(&pf->hw, &link_up);
2592 	if (status) {
2593 		netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2594 		*data = 1;
2595 		return *data;
2596 	}
2597 
2598 	if (link_up)
2599 		*data = 0;
2600 	else
2601 		*data = 1;
2602 
2603 	return *data;
2604 }
2605 
2606 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2607 {
2608 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2609 	struct i40e_pf *pf = np->vsi->back;
2610 
2611 	netif_info(pf, hw, netdev, "register test\n");
2612 	*data = i40e_diag_reg_test(&pf->hw);
2613 
2614 	return *data;
2615 }
2616 
2617 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2618 {
2619 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2620 	struct i40e_pf *pf = np->vsi->back;
2621 
2622 	netif_info(pf, hw, netdev, "eeprom test\n");
2623 	*data = i40e_diag_eeprom_test(&pf->hw);
2624 
2625 	/* forcebly clear the NVM Update state machine */
2626 	pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2627 
2628 	return *data;
2629 }
2630 
2631 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2632 {
2633 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2634 	struct i40e_pf *pf = np->vsi->back;
2635 	u16 swc_old = pf->sw_int_count;
2636 
2637 	netif_info(pf, hw, netdev, "interrupt test\n");
2638 	wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2639 	     (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2640 	      I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2641 	      I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2642 	      I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2643 	      I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2644 	usleep_range(1000, 2000);
2645 	*data = (swc_old == pf->sw_int_count);
2646 
2647 	return *data;
2648 }
2649 
2650 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2651 {
2652 	struct i40e_vf *vfs = pf->vf;
2653 	int i;
2654 
2655 	for (i = 0; i < pf->num_alloc_vfs; i++)
2656 		if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2657 			return true;
2658 	return false;
2659 }
2660 
2661 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2662 {
2663 	return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2664 }
2665 
2666 static void i40e_diag_test(struct net_device *netdev,
2667 			   struct ethtool_test *eth_test, u64 *data)
2668 {
2669 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2670 	bool if_running = netif_running(netdev);
2671 	struct i40e_pf *pf = np->vsi->back;
2672 
2673 	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2674 		/* Offline tests */
2675 		netif_info(pf, drv, netdev, "offline testing starting\n");
2676 
2677 		set_bit(__I40E_TESTING, pf->state);
2678 
2679 		if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
2680 		    test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {
2681 			dev_warn(&pf->pdev->dev,
2682 				 "Cannot start offline testing when PF is in reset state.\n");
2683 			goto skip_ol_tests;
2684 		}
2685 
2686 		if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2687 			dev_warn(&pf->pdev->dev,
2688 				 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2689 			goto skip_ol_tests;
2690 		}
2691 
2692 		/* If the device is online then take it offline */
2693 		if (if_running)
2694 			/* indicate we're in test mode */
2695 			i40e_close(netdev);
2696 		else
2697 			/* This reset does not affect link - if it is
2698 			 * changed to a type of reset that does affect
2699 			 * link then the following link test would have
2700 			 * to be moved to before the reset
2701 			 */
2702 			i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2703 
2704 		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2705 			eth_test->flags |= ETH_TEST_FL_FAILED;
2706 
2707 		if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2708 			eth_test->flags |= ETH_TEST_FL_FAILED;
2709 
2710 		if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2711 			eth_test->flags |= ETH_TEST_FL_FAILED;
2712 
2713 		/* run reg test last, a reset is required after it */
2714 		if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2715 			eth_test->flags |= ETH_TEST_FL_FAILED;
2716 
2717 		clear_bit(__I40E_TESTING, pf->state);
2718 		i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2719 
2720 		if (if_running)
2721 			i40e_open(netdev);
2722 	} else {
2723 		/* Online tests */
2724 		netif_info(pf, drv, netdev, "online testing starting\n");
2725 
2726 		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2727 			eth_test->flags |= ETH_TEST_FL_FAILED;
2728 
2729 		/* Offline only tests, not run in online; pass by default */
2730 		data[I40E_ETH_TEST_REG] = 0;
2731 		data[I40E_ETH_TEST_EEPROM] = 0;
2732 		data[I40E_ETH_TEST_INTR] = 0;
2733 	}
2734 
2735 	netif_info(pf, drv, netdev, "testing finished\n");
2736 	return;
2737 
2738 skip_ol_tests:
2739 	data[I40E_ETH_TEST_REG]		= 1;
2740 	data[I40E_ETH_TEST_EEPROM]	= 1;
2741 	data[I40E_ETH_TEST_INTR]	= 1;
2742 	data[I40E_ETH_TEST_LINK]	= 1;
2743 	eth_test->flags |= ETH_TEST_FL_FAILED;
2744 	clear_bit(__I40E_TESTING, pf->state);
2745 	netif_info(pf, drv, netdev, "testing failed\n");
2746 }
2747 
2748 static void i40e_get_wol(struct net_device *netdev,
2749 			 struct ethtool_wolinfo *wol)
2750 {
2751 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2752 	struct i40e_pf *pf = np->vsi->back;
2753 	struct i40e_hw *hw = &pf->hw;
2754 	u16 wol_nvm_bits;
2755 
2756 	/* NVM bit on means WoL disabled for the port */
2757 	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2758 	if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2759 		wol->supported = 0;
2760 		wol->wolopts = 0;
2761 	} else {
2762 		wol->supported = WAKE_MAGIC;
2763 		wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2764 	}
2765 }
2766 
2767 /**
2768  * i40e_set_wol - set the WakeOnLAN configuration
2769  * @netdev: the netdev in question
2770  * @wol: the ethtool WoL setting data
2771  **/
2772 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2773 {
2774 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2775 	struct i40e_pf *pf = np->vsi->back;
2776 	struct i40e_vsi *vsi = np->vsi;
2777 	struct i40e_hw *hw = &pf->hw;
2778 	u16 wol_nvm_bits;
2779 
2780 	/* WoL not supported if this isn't the controlling PF on the port */
2781 	if (hw->partition_id != 1) {
2782 		i40e_partition_setting_complaint(pf);
2783 		return -EOPNOTSUPP;
2784 	}
2785 
2786 	if (vsi != pf->vsi[pf->lan_vsi])
2787 		return -EOPNOTSUPP;
2788 
2789 	/* NVM bit on means WoL disabled for the port */
2790 	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2791 	if (BIT(hw->port) & wol_nvm_bits)
2792 		return -EOPNOTSUPP;
2793 
2794 	/* only magic packet is supported */
2795 	if (wol->wolopts & ~WAKE_MAGIC)
2796 		return -EOPNOTSUPP;
2797 
2798 	/* is this a new value? */
2799 	if (pf->wol_en != !!wol->wolopts) {
2800 		pf->wol_en = !!wol->wolopts;
2801 		device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2802 	}
2803 
2804 	return 0;
2805 }
2806 
2807 static int i40e_set_phys_id(struct net_device *netdev,
2808 			    enum ethtool_phys_id_state state)
2809 {
2810 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2811 	i40e_status ret = 0;
2812 	struct i40e_pf *pf = np->vsi->back;
2813 	struct i40e_hw *hw = &pf->hw;
2814 	int blink_freq = 2;
2815 	u16 temp_status;
2816 
2817 	switch (state) {
2818 	case ETHTOOL_ID_ACTIVE:
2819 		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2820 			pf->led_status = i40e_led_get(hw);
2821 		} else {
2822 			if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2823 				i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2824 						      NULL);
2825 			ret = i40e_led_get_phy(hw, &temp_status,
2826 					       &pf->phy_led_val);
2827 			pf->led_status = temp_status;
2828 		}
2829 		return blink_freq;
2830 	case ETHTOOL_ID_ON:
2831 		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2832 			i40e_led_set(hw, 0xf, false);
2833 		else
2834 			ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2835 		break;
2836 	case ETHTOOL_ID_OFF:
2837 		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2838 			i40e_led_set(hw, 0x0, false);
2839 		else
2840 			ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2841 		break;
2842 	case ETHTOOL_ID_INACTIVE:
2843 		if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2844 			i40e_led_set(hw, pf->led_status, false);
2845 		} else {
2846 			ret = i40e_led_set_phy(hw, false, pf->led_status,
2847 					       (pf->phy_led_val |
2848 					       I40E_PHY_LED_MODE_ORIG));
2849 			if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2850 				i40e_aq_set_phy_debug(hw, 0, NULL);
2851 		}
2852 		break;
2853 	default:
2854 		break;
2855 	}
2856 	if (ret)
2857 		return -ENOENT;
2858 	else
2859 		return 0;
2860 }
2861 
2862 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2863  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2864  * 125us (8000 interrupts per second) == ITR(62)
2865  */
2866 
2867 /**
2868  * __i40e_get_coalesce - get per-queue coalesce settings
2869  * @netdev: the netdev to check
2870  * @ec: ethtool coalesce data structure
2871  * @queue: which queue to pick
2872  *
2873  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2874  * are per queue. If queue is <0 then we default to queue 0 as the
2875  * representative value.
2876  **/
2877 static int __i40e_get_coalesce(struct net_device *netdev,
2878 			       struct ethtool_coalesce *ec,
2879 			       int queue)
2880 {
2881 	struct i40e_netdev_priv *np = netdev_priv(netdev);
2882 	struct i40e_ring *rx_ring, *tx_ring;
2883 	struct i40e_vsi *vsi = np->vsi;
2884 
2885 	ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2886 	ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2887 
2888 	/* rx and tx usecs has per queue value. If user doesn't specify the
2889 	 * queue, return queue 0's value to represent.
2890 	 */
2891 	if (queue < 0)
2892 		queue = 0;
2893 	else if (queue >= vsi->num_queue_pairs)
2894 		return -EINVAL;
2895 
2896 	rx_ring = vsi->rx_rings[queue];
2897 	tx_ring = vsi->tx_rings[queue];
2898 
2899 	if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2900 		ec->use_adaptive_rx_coalesce = 1;
2901 
2902 	if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2903 		ec->use_adaptive_tx_coalesce = 1;
2904 
2905 	ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2906 	ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2907 
2908 	/* we use the _usecs_high to store/set the interrupt rate limit
2909 	 * that the hardware supports, that almost but not quite
2910 	 * fits the original intent of the ethtool variable,
2911 	 * the rx_coalesce_usecs_high limits total interrupts
2912 	 * per second from both tx/rx sources.
2913 	 */
2914 	ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2915 	ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2916 
2917 	return 0;
2918 }
2919 
2920 /**
2921  * i40e_get_coalesce - get a netdev's coalesce settings
2922  * @netdev: the netdev to check
2923  * @ec: ethtool coalesce data structure
2924  * @kernel_coal: ethtool CQE mode setting structure
2925  * @extack: extack for reporting error messages
2926  *
2927  * Gets the coalesce settings for a particular netdev. Note that if user has
2928  * modified per-queue settings, this only guarantees to represent queue 0. See
2929  * __i40e_get_coalesce for more details.
2930  **/
2931 static int i40e_get_coalesce(struct net_device *netdev,
2932 			     struct ethtool_coalesce *ec,
2933 			     struct kernel_ethtool_coalesce *kernel_coal,
2934 			     struct netlink_ext_ack *extack)
2935 {
2936 	return __i40e_get_coalesce(netdev, ec, -1);
2937 }
2938 
2939 /**
2940  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2941  * @netdev: netdev structure
2942  * @ec: ethtool's coalesce settings
2943  * @queue: the particular queue to read
2944  *
2945  * Will read a specific queue's coalesce settings
2946  **/
2947 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2948 				       struct ethtool_coalesce *ec)
2949 {
2950 	return __i40e_get_coalesce(netdev, ec, queue);
2951 }
2952 
2953 /**
2954  * i40e_set_itr_per_queue - set ITR values for specific queue
2955  * @vsi: the VSI to set values for
2956  * @ec: coalesce settings from ethtool
2957  * @queue: the queue to modify
2958  *
2959  * Change the ITR settings for a specific queue.
2960  **/
2961 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2962 				   struct ethtool_coalesce *ec,
2963 				   int queue)
2964 {
2965 	struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2966 	struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2967 	struct i40e_pf *pf = vsi->back;
2968 	struct i40e_hw *hw = &pf->hw;
2969 	struct i40e_q_vector *q_vector;
2970 	u16 intrl;
2971 
2972 	intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2973 
2974 	rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2975 	tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2976 
2977 	if (ec->use_adaptive_rx_coalesce)
2978 		rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2979 	else
2980 		rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2981 
2982 	if (ec->use_adaptive_tx_coalesce)
2983 		tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2984 	else
2985 		tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2986 
2987 	q_vector = rx_ring->q_vector;
2988 	q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2989 
2990 	q_vector = tx_ring->q_vector;
2991 	q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2992 
2993 	/* The interrupt handler itself will take care of programming
2994 	 * the Tx and Rx ITR values based on the values we have entered
2995 	 * into the q_vector, no need to write the values now.
2996 	 */
2997 
2998 	wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2999 	i40e_flush(hw);
3000 }
3001 
3002 /**
3003  * __i40e_set_coalesce - set coalesce settings for particular queue
3004  * @netdev: the netdev to change
3005  * @ec: ethtool coalesce settings
3006  * @queue: the queue to change
3007  *
3008  * Sets the coalesce settings for a particular queue.
3009  **/
3010 static int __i40e_set_coalesce(struct net_device *netdev,
3011 			       struct ethtool_coalesce *ec,
3012 			       int queue)
3013 {
3014 	struct i40e_netdev_priv *np = netdev_priv(netdev);
3015 	u16 intrl_reg, cur_rx_itr, cur_tx_itr;
3016 	struct i40e_vsi *vsi = np->vsi;
3017 	struct i40e_pf *pf = vsi->back;
3018 	int i;
3019 
3020 	if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
3021 		vsi->work_limit = ec->tx_max_coalesced_frames_irq;
3022 
3023 	if (queue < 0) {
3024 		cur_rx_itr = vsi->rx_rings[0]->itr_setting;
3025 		cur_tx_itr = vsi->tx_rings[0]->itr_setting;
3026 	} else if (queue < vsi->num_queue_pairs) {
3027 		cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
3028 		cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
3029 	} else {
3030 		netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
3031 			   vsi->num_queue_pairs - 1);
3032 		return -EINVAL;
3033 	}
3034 
3035 	cur_tx_itr &= ~I40E_ITR_DYNAMIC;
3036 	cur_rx_itr &= ~I40E_ITR_DYNAMIC;
3037 
3038 	/* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
3039 	if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
3040 		netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
3041 		return -EINVAL;
3042 	}
3043 
3044 	if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
3045 		netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
3046 			   INTRL_REG_TO_USEC(I40E_MAX_INTRL));
3047 		return -EINVAL;
3048 	}
3049 
3050 	if (ec->rx_coalesce_usecs != cur_rx_itr &&
3051 	    ec->use_adaptive_rx_coalesce) {
3052 		netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
3053 		return -EINVAL;
3054 	}
3055 
3056 	if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
3057 		netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
3058 		return -EINVAL;
3059 	}
3060 
3061 	if (ec->tx_coalesce_usecs != cur_tx_itr &&
3062 	    ec->use_adaptive_tx_coalesce) {
3063 		netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
3064 		return -EINVAL;
3065 	}
3066 
3067 	if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
3068 		netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
3069 		return -EINVAL;
3070 	}
3071 
3072 	if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
3073 		ec->rx_coalesce_usecs = I40E_MIN_ITR;
3074 
3075 	if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
3076 		ec->tx_coalesce_usecs = I40E_MIN_ITR;
3077 
3078 	intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
3079 	vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
3080 	if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
3081 		netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
3082 			   vsi->int_rate_limit);
3083 	}
3084 
3085 	/* rx and tx usecs has per queue value. If user doesn't specify the
3086 	 * queue, apply to all queues.
3087 	 */
3088 	if (queue < 0) {
3089 		for (i = 0; i < vsi->num_queue_pairs; i++)
3090 			i40e_set_itr_per_queue(vsi, ec, i);
3091 	} else {
3092 		i40e_set_itr_per_queue(vsi, ec, queue);
3093 	}
3094 
3095 	return 0;
3096 }
3097 
3098 /**
3099  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
3100  * @netdev: the netdev to change
3101  * @ec: ethtool coalesce settings
3102  * @kernel_coal: ethtool CQE mode setting structure
3103  * @extack: extack for reporting error messages
3104  *
3105  * This will set each queue to the same coalesce settings.
3106  **/
3107 static int i40e_set_coalesce(struct net_device *netdev,
3108 			     struct ethtool_coalesce *ec,
3109 			     struct kernel_ethtool_coalesce *kernel_coal,
3110 			     struct netlink_ext_ack *extack)
3111 {
3112 	return __i40e_set_coalesce(netdev, ec, -1);
3113 }
3114 
3115 /**
3116  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3117  * @netdev: the netdev to change
3118  * @ec: ethtool's coalesce settings
3119  * @queue: the queue to change
3120  *
3121  * Sets the specified queue's coalesce settings.
3122  **/
3123 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3124 				       struct ethtool_coalesce *ec)
3125 {
3126 	return __i40e_set_coalesce(netdev, ec, queue);
3127 }
3128 
3129 /**
3130  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3131  * @pf: pointer to the physical function struct
3132  * @cmd: ethtool rxnfc command
3133  *
3134  * Returns Success if the flow is supported, else Invalid Input.
3135  **/
3136 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3137 {
3138 	struct i40e_hw *hw = &pf->hw;
3139 	u8 flow_pctype = 0;
3140 	u64 i_set = 0;
3141 
3142 	cmd->data = 0;
3143 
3144 	switch (cmd->flow_type) {
3145 	case TCP_V4_FLOW:
3146 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3147 		break;
3148 	case UDP_V4_FLOW:
3149 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3150 		break;
3151 	case TCP_V6_FLOW:
3152 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3153 		break;
3154 	case UDP_V6_FLOW:
3155 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3156 		break;
3157 	case SCTP_V4_FLOW:
3158 	case AH_ESP_V4_FLOW:
3159 	case AH_V4_FLOW:
3160 	case ESP_V4_FLOW:
3161 	case IPV4_FLOW:
3162 	case SCTP_V6_FLOW:
3163 	case AH_ESP_V6_FLOW:
3164 	case AH_V6_FLOW:
3165 	case ESP_V6_FLOW:
3166 	case IPV6_FLOW:
3167 		/* Default is src/dest for IP, no matter the L4 hashing */
3168 		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3169 		break;
3170 	default:
3171 		return -EINVAL;
3172 	}
3173 
3174 	/* Read flow based hash input set register */
3175 	if (flow_pctype) {
3176 		i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3177 					      flow_pctype)) |
3178 			((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3179 					       flow_pctype)) << 32);
3180 	}
3181 
3182 	/* Process bits of hash input set */
3183 	if (i_set) {
3184 		if (i_set & I40E_L4_SRC_MASK)
3185 			cmd->data |= RXH_L4_B_0_1;
3186 		if (i_set & I40E_L4_DST_MASK)
3187 			cmd->data |= RXH_L4_B_2_3;
3188 
3189 		if (cmd->flow_type == TCP_V4_FLOW ||
3190 		    cmd->flow_type == UDP_V4_FLOW) {
3191 			if (i_set & I40E_L3_SRC_MASK)
3192 				cmd->data |= RXH_IP_SRC;
3193 			if (i_set & I40E_L3_DST_MASK)
3194 				cmd->data |= RXH_IP_DST;
3195 		} else if (cmd->flow_type == TCP_V6_FLOW ||
3196 			  cmd->flow_type == UDP_V6_FLOW) {
3197 			if (i_set & I40E_L3_V6_SRC_MASK)
3198 				cmd->data |= RXH_IP_SRC;
3199 			if (i_set & I40E_L3_V6_DST_MASK)
3200 				cmd->data |= RXH_IP_DST;
3201 		}
3202 	}
3203 
3204 	return 0;
3205 }
3206 
3207 /**
3208  * i40e_check_mask - Check whether a mask field is set
3209  * @mask: the full mask value
3210  * @field: mask of the field to check
3211  *
3212  * If the given mask is fully set, return positive value. If the mask for the
3213  * field is fully unset, return zero. Otherwise return a negative error code.
3214  **/
3215 static int i40e_check_mask(u64 mask, u64 field)
3216 {
3217 	u64 value = mask & field;
3218 
3219 	if (value == field)
3220 		return 1;
3221 	else if (!value)
3222 		return 0;
3223 	else
3224 		return -1;
3225 }
3226 
3227 /**
3228  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3229  * @fsp: pointer to rx flow specification
3230  * @data: pointer to userdef data structure for storage
3231  *
3232  * Read the user-defined data and deconstruct the value into a structure. No
3233  * other code should read the user-defined data, so as to ensure that every
3234  * place consistently reads the value correctly.
3235  *
3236  * The user-defined field is a 64bit Big Endian format value, which we
3237  * deconstruct by reading bits or bit fields from it. Single bit flags shall
3238  * be defined starting from the highest bits, while small bit field values
3239  * shall be defined starting from the lowest bits.
3240  *
3241  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3242  * and the filter should be rejected. The data structure will always be
3243  * modified even if FLOW_EXT is not set.
3244  *
3245  **/
3246 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3247 					struct i40e_rx_flow_userdef *data)
3248 {
3249 	u64 value, mask;
3250 	int valid;
3251 
3252 	/* Zero memory first so it's always consistent. */
3253 	memset(data, 0, sizeof(*data));
3254 
3255 	if (!(fsp->flow_type & FLOW_EXT))
3256 		return 0;
3257 
3258 	value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3259 	mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3260 
3261 #define I40E_USERDEF_FLEX_WORD		GENMASK_ULL(15, 0)
3262 #define I40E_USERDEF_FLEX_OFFSET	GENMASK_ULL(31, 16)
3263 #define I40E_USERDEF_FLEX_FILTER	GENMASK_ULL(31, 0)
3264 
3265 	valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3266 	if (valid < 0) {
3267 		return -EINVAL;
3268 	} else if (valid) {
3269 		data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3270 		data->flex_offset =
3271 			(value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3272 		data->flex_filter = true;
3273 	}
3274 
3275 	return 0;
3276 }
3277 
3278 /**
3279  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3280  * @fsp: pointer to rx_flow specification
3281  * @data: pointer to return userdef data
3282  *
3283  * Reads the userdef data structure and properly fills in the user defined
3284  * fields of the rx_flow_spec.
3285  **/
3286 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3287 					struct i40e_rx_flow_userdef *data)
3288 {
3289 	u64 value = 0, mask = 0;
3290 
3291 	if (data->flex_filter) {
3292 		value |= data->flex_word;
3293 		value |= (u64)data->flex_offset << 16;
3294 		mask |= I40E_USERDEF_FLEX_FILTER;
3295 	}
3296 
3297 	if (value || mask)
3298 		fsp->flow_type |= FLOW_EXT;
3299 
3300 	*((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3301 	*((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3302 }
3303 
3304 /**
3305  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3306  * @pf: Pointer to the physical function struct
3307  * @cmd: The command to get or set Rx flow classification rules
3308  * @rule_locs: Array of used rule locations
3309  *
3310  * This function populates both the total and actual rule count of
3311  * the ethtool flow classification command
3312  *
3313  * Returns 0 on success or -EMSGSIZE if entry not found
3314  **/
3315 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3316 				     struct ethtool_rxnfc *cmd,
3317 				     u32 *rule_locs)
3318 {
3319 	struct i40e_fdir_filter *rule;
3320 	struct hlist_node *node2;
3321 	int cnt = 0;
3322 
3323 	/* report total rule count */
3324 	cmd->data = i40e_get_fd_cnt_all(pf);
3325 
3326 	hlist_for_each_entry_safe(rule, node2,
3327 				  &pf->fdir_filter_list, fdir_node) {
3328 		if (cnt == cmd->rule_cnt)
3329 			return -EMSGSIZE;
3330 
3331 		rule_locs[cnt] = rule->fd_id;
3332 		cnt++;
3333 	}
3334 
3335 	cmd->rule_cnt = cnt;
3336 
3337 	return 0;
3338 }
3339 
3340 /**
3341  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3342  * @pf: Pointer to the physical function struct
3343  * @cmd: The command to get or set Rx flow classification rules
3344  *
3345  * This function looks up a filter based on the Rx flow classification
3346  * command and fills the flow spec info for it if found
3347  *
3348  * Returns 0 on success or -EINVAL if filter not found
3349  **/
3350 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3351 				       struct ethtool_rxnfc *cmd)
3352 {
3353 	struct ethtool_rx_flow_spec *fsp =
3354 			(struct ethtool_rx_flow_spec *)&cmd->fs;
3355 	struct i40e_rx_flow_userdef userdef = {0};
3356 	struct i40e_fdir_filter *rule = NULL;
3357 	struct hlist_node *node2;
3358 	u64 input_set;
3359 	u16 index;
3360 
3361 	hlist_for_each_entry_safe(rule, node2,
3362 				  &pf->fdir_filter_list, fdir_node) {
3363 		if (fsp->location <= rule->fd_id)
3364 			break;
3365 	}
3366 
3367 	if (!rule || fsp->location != rule->fd_id)
3368 		return -EINVAL;
3369 
3370 	fsp->flow_type = rule->flow_type;
3371 	if (fsp->flow_type == IP_USER_FLOW) {
3372 		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3373 		fsp->h_u.usr_ip4_spec.proto = 0;
3374 		fsp->m_u.usr_ip4_spec.proto = 0;
3375 	}
3376 
3377 	if (fsp->flow_type == IPV6_USER_FLOW ||
3378 	    fsp->flow_type == UDP_V6_FLOW ||
3379 	    fsp->flow_type == TCP_V6_FLOW ||
3380 	    fsp->flow_type == SCTP_V6_FLOW) {
3381 		/* Reverse the src and dest notion, since the HW views them
3382 		 * from Tx perspective where as the user expects it from
3383 		 * Rx filter view.
3384 		 */
3385 		fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3386 		fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3387 		memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3388 		       sizeof(__be32) * 4);
3389 		memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3390 		       sizeof(__be32) * 4);
3391 	} else {
3392 		/* Reverse the src and dest notion, since the HW views them
3393 		 * from Tx perspective where as the user expects it from
3394 		 * Rx filter view.
3395 		 */
3396 		fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3397 		fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3398 		fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3399 		fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3400 	}
3401 
3402 	switch (rule->flow_type) {
3403 	case SCTP_V4_FLOW:
3404 		index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3405 		break;
3406 	case TCP_V4_FLOW:
3407 		index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3408 		break;
3409 	case UDP_V4_FLOW:
3410 		index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3411 		break;
3412 	case SCTP_V6_FLOW:
3413 		index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3414 		break;
3415 	case TCP_V6_FLOW:
3416 		index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3417 		break;
3418 	case UDP_V6_FLOW:
3419 		index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3420 		break;
3421 	case IP_USER_FLOW:
3422 		index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3423 		break;
3424 	case IPV6_USER_FLOW:
3425 		index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3426 		break;
3427 	default:
3428 		/* If we have stored a filter with a flow type not listed here
3429 		 * it is almost certainly a driver bug. WARN(), and then
3430 		 * assign the input_set as if all fields are enabled to avoid
3431 		 * reading unassigned memory.
3432 		 */
3433 		WARN(1, "Missing input set index for flow_type %d\n",
3434 		     rule->flow_type);
3435 		input_set = 0xFFFFFFFFFFFFFFFFULL;
3436 		goto no_input_set;
3437 	}
3438 
3439 	input_set = i40e_read_fd_input_set(pf, index);
3440 
3441 no_input_set:
3442 	if (input_set & I40E_L3_V6_SRC_MASK) {
3443 		fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3444 		fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3445 		fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3446 		fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3447 	}
3448 
3449 	if (input_set & I40E_L3_V6_DST_MASK) {
3450 		fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3451 		fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3452 		fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3453 		fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3454 	}
3455 
3456 	if (input_set & I40E_L3_SRC_MASK)
3457 		fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3458 
3459 	if (input_set & I40E_L3_DST_MASK)
3460 		fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3461 
3462 	if (input_set & I40E_L4_SRC_MASK)
3463 		fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3464 
3465 	if (input_set & I40E_L4_DST_MASK)
3466 		fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3467 
3468 	if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3469 		fsp->ring_cookie = RX_CLS_FLOW_DISC;
3470 	else
3471 		fsp->ring_cookie = rule->q_index;
3472 
3473 	if (rule->vlan_tag) {
3474 		fsp->h_ext.vlan_etype = rule->vlan_etype;
3475 		fsp->m_ext.vlan_etype = htons(0xFFFF);
3476 		fsp->h_ext.vlan_tci = rule->vlan_tag;
3477 		fsp->m_ext.vlan_tci = htons(0xFFFF);
3478 		fsp->flow_type |= FLOW_EXT;
3479 	}
3480 
3481 	if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3482 		struct i40e_vsi *vsi;
3483 
3484 		vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3485 		if (vsi && vsi->type == I40E_VSI_SRIOV) {
3486 			/* VFs are zero-indexed by the driver, but ethtool
3487 			 * expects them to be one-indexed, so add one here
3488 			 */
3489 			u64 ring_vf = vsi->vf_id + 1;
3490 
3491 			ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3492 			fsp->ring_cookie |= ring_vf;
3493 		}
3494 	}
3495 
3496 	if (rule->flex_filter) {
3497 		userdef.flex_filter = true;
3498 		userdef.flex_word = be16_to_cpu(rule->flex_word);
3499 		userdef.flex_offset = rule->flex_offset;
3500 	}
3501 
3502 	i40e_fill_rx_flow_user_data(fsp, &userdef);
3503 
3504 	return 0;
3505 }
3506 
3507 /**
3508  * i40e_get_rxnfc - command to get RX flow classification rules
3509  * @netdev: network interface device structure
3510  * @cmd: ethtool rxnfc command
3511  * @rule_locs: pointer to store rule data
3512  *
3513  * Returns Success if the command is supported.
3514  **/
3515 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3516 			  u32 *rule_locs)
3517 {
3518 	struct i40e_netdev_priv *np = netdev_priv(netdev);
3519 	struct i40e_vsi *vsi = np->vsi;
3520 	struct i40e_pf *pf = vsi->back;
3521 	int ret = -EOPNOTSUPP;
3522 
3523 	switch (cmd->cmd) {
3524 	case ETHTOOL_GRXRINGS:
3525 		cmd->data = vsi->rss_size;
3526 		ret = 0;
3527 		break;
3528 	case ETHTOOL_GRXFH:
3529 		ret = i40e_get_rss_hash_opts(pf, cmd);
3530 		break;
3531 	case ETHTOOL_GRXCLSRLCNT:
3532 		cmd->rule_cnt = pf->fdir_pf_active_filters;
3533 		/* report total rule count */
3534 		cmd->data = i40e_get_fd_cnt_all(pf);
3535 		ret = 0;
3536 		break;
3537 	case ETHTOOL_GRXCLSRULE:
3538 		ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3539 		break;
3540 	case ETHTOOL_GRXCLSRLALL:
3541 		ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3542 		break;
3543 	default:
3544 		break;
3545 	}
3546 
3547 	return ret;
3548 }
3549 
3550 /**
3551  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3552  * @nfc: pointer to user request
3553  * @i_setc: bits currently set
3554  *
3555  * Returns value of bits to be set per user request
3556  **/
3557 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3558 {
3559 	u64 i_set = i_setc;
3560 	u64 src_l3 = 0, dst_l3 = 0;
3561 
3562 	if (nfc->data & RXH_L4_B_0_1)
3563 		i_set |= I40E_L4_SRC_MASK;
3564 	else
3565 		i_set &= ~I40E_L4_SRC_MASK;
3566 	if (nfc->data & RXH_L4_B_2_3)
3567 		i_set |= I40E_L4_DST_MASK;
3568 	else
3569 		i_set &= ~I40E_L4_DST_MASK;
3570 
3571 	if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3572 		src_l3 = I40E_L3_V6_SRC_MASK;
3573 		dst_l3 = I40E_L3_V6_DST_MASK;
3574 	} else if (nfc->flow_type == TCP_V4_FLOW ||
3575 		  nfc->flow_type == UDP_V4_FLOW) {
3576 		src_l3 = I40E_L3_SRC_MASK;
3577 		dst_l3 = I40E_L3_DST_MASK;
3578 	} else {
3579 		/* Any other flow type are not supported here */
3580 		return i_set;
3581 	}
3582 
3583 	if (nfc->data & RXH_IP_SRC)
3584 		i_set |= src_l3;
3585 	else
3586 		i_set &= ~src_l3;
3587 	if (nfc->data & RXH_IP_DST)
3588 		i_set |= dst_l3;
3589 	else
3590 		i_set &= ~dst_l3;
3591 
3592 	return i_set;
3593 }
3594 
3595 /**
3596  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3597  * @pf: pointer to the physical function struct
3598  * @nfc: ethtool rxnfc command
3599  *
3600  * Returns Success if the flow input set is supported.
3601  **/
3602 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3603 {
3604 	struct i40e_hw *hw = &pf->hw;
3605 	u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3606 		   ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3607 	u8 flow_pctype = 0;
3608 	u64 i_set, i_setc;
3609 
3610 	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3611 		dev_err(&pf->pdev->dev,
3612 			"Change of RSS hash input set is not supported when MFP mode is enabled\n");
3613 		return -EOPNOTSUPP;
3614 	}
3615 
3616 	/* RSS does not support anything other than hashing
3617 	 * to queues on src and dst IPs and ports
3618 	 */
3619 	if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3620 			  RXH_L4_B_0_1 | RXH_L4_B_2_3))
3621 		return -EINVAL;
3622 
3623 	switch (nfc->flow_type) {
3624 	case TCP_V4_FLOW:
3625 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3626 		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3627 			hena |=
3628 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3629 		break;
3630 	case TCP_V6_FLOW:
3631 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3632 		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3633 			hena |=
3634 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3635 		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3636 			hena |=
3637 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3638 		break;
3639 	case UDP_V4_FLOW:
3640 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3641 		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3642 			hena |=
3643 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3644 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3645 
3646 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3647 		break;
3648 	case UDP_V6_FLOW:
3649 		flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3650 		if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3651 			hena |=
3652 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3653 			  BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3654 
3655 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3656 		break;
3657 	case AH_ESP_V4_FLOW:
3658 	case AH_V4_FLOW:
3659 	case ESP_V4_FLOW:
3660 	case SCTP_V4_FLOW:
3661 		if ((nfc->data & RXH_L4_B_0_1) ||
3662 		    (nfc->data & RXH_L4_B_2_3))
3663 			return -EINVAL;
3664 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3665 		break;
3666 	case AH_ESP_V6_FLOW:
3667 	case AH_V6_FLOW:
3668 	case ESP_V6_FLOW:
3669 	case SCTP_V6_FLOW:
3670 		if ((nfc->data & RXH_L4_B_0_1) ||
3671 		    (nfc->data & RXH_L4_B_2_3))
3672 			return -EINVAL;
3673 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3674 		break;
3675 	case IPV4_FLOW:
3676 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3677 			BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3678 		break;
3679 	case IPV6_FLOW:
3680 		hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3681 			BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3682 		break;
3683 	default:
3684 		return -EINVAL;
3685 	}
3686 
3687 	if (flow_pctype) {
3688 		i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3689 					       flow_pctype)) |
3690 			((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3691 					       flow_pctype)) << 32);
3692 		i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3693 		i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3694 				  (u32)i_set);
3695 		i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3696 				  (u32)(i_set >> 32));
3697 		hena |= BIT_ULL(flow_pctype);
3698 	}
3699 
3700 	i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3701 	i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3702 	i40e_flush(hw);
3703 
3704 	return 0;
3705 }
3706 
3707 /**
3708  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3709  * @vsi: Pointer to the targeted VSI
3710  * @input: The filter to update or NULL to indicate deletion
3711  * @sw_idx: Software index to the filter
3712  * @cmd: The command to get or set Rx flow classification rules
3713  *
3714  * This function updates (or deletes) a Flow Director entry from
3715  * the hlist of the corresponding PF
3716  *
3717  * Returns 0 on success
3718  **/
3719 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3720 					  struct i40e_fdir_filter *input,
3721 					  u16 sw_idx,
3722 					  struct ethtool_rxnfc *cmd)
3723 {
3724 	struct i40e_fdir_filter *rule, *parent;
3725 	struct i40e_pf *pf = vsi->back;
3726 	struct hlist_node *node2;
3727 	int err = -EINVAL;
3728 
3729 	parent = NULL;
3730 	rule = NULL;
3731 
3732 	hlist_for_each_entry_safe(rule, node2,
3733 				  &pf->fdir_filter_list, fdir_node) {
3734 		/* hash found, or no matching entry */
3735 		if (rule->fd_id >= sw_idx)
3736 			break;
3737 		parent = rule;
3738 	}
3739 
3740 	/* if there is an old rule occupying our place remove it */
3741 	if (rule && (rule->fd_id == sw_idx)) {
3742 		/* Remove this rule, since we're either deleting it, or
3743 		 * replacing it.
3744 		 */
3745 		err = i40e_add_del_fdir(vsi, rule, false);
3746 		hlist_del(&rule->fdir_node);
3747 		kfree(rule);
3748 		pf->fdir_pf_active_filters--;
3749 	}
3750 
3751 	/* If we weren't given an input, this is a delete, so just return the
3752 	 * error code indicating if there was an entry at the requested slot
3753 	 */
3754 	if (!input)
3755 		return err;
3756 
3757 	/* Otherwise, install the new rule as requested */
3758 	INIT_HLIST_NODE(&input->fdir_node);
3759 
3760 	/* add filter to the list */
3761 	if (parent)
3762 		hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3763 	else
3764 		hlist_add_head(&input->fdir_node,
3765 			       &pf->fdir_filter_list);
3766 
3767 	/* update counts */
3768 	pf->fdir_pf_active_filters++;
3769 
3770 	return 0;
3771 }
3772 
3773 /**
3774  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3775  * @pf: pointer to PF structure
3776  *
3777  * This function searches the list of filters and determines which FLX_PIT
3778  * entries are still required. It will prune any entries which are no longer
3779  * in use after the deletion.
3780  **/
3781 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3782 {
3783 	struct i40e_flex_pit *entry, *tmp;
3784 	struct i40e_fdir_filter *rule;
3785 
3786 	/* First, we'll check the l3 table */
3787 	list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3788 		bool found = false;
3789 
3790 		hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3791 			if (rule->flow_type != IP_USER_FLOW)
3792 				continue;
3793 			if (rule->flex_filter &&
3794 			    rule->flex_offset == entry->src_offset) {
3795 				found = true;
3796 				break;
3797 			}
3798 		}
3799 
3800 		/* If we didn't find the filter, then we can prune this entry
3801 		 * from the list.
3802 		 */
3803 		if (!found) {
3804 			list_del(&entry->list);
3805 			kfree(entry);
3806 		}
3807 	}
3808 
3809 	/* Followed by the L4 table */
3810 	list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3811 		bool found = false;
3812 
3813 		hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3814 			/* Skip this filter if it's L3, since we already
3815 			 * checked those in the above loop
3816 			 */
3817 			if (rule->flow_type == IP_USER_FLOW)
3818 				continue;
3819 			if (rule->flex_filter &&
3820 			    rule->flex_offset == entry->src_offset) {
3821 				found = true;
3822 				break;
3823 			}
3824 		}
3825 
3826 		/* If we didn't find the filter, then we can prune this entry
3827 		 * from the list.
3828 		 */
3829 		if (!found) {
3830 			list_del(&entry->list);
3831 			kfree(entry);
3832 		}
3833 	}
3834 }
3835 
3836 /**
3837  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3838  * @vsi: Pointer to the targeted VSI
3839  * @cmd: The command to get or set Rx flow classification rules
3840  *
3841  * The function removes a Flow Director filter entry from the
3842  * hlist of the corresponding PF
3843  *
3844  * Returns 0 on success
3845  */
3846 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3847 			       struct ethtool_rxnfc *cmd)
3848 {
3849 	struct ethtool_rx_flow_spec *fsp =
3850 		(struct ethtool_rx_flow_spec *)&cmd->fs;
3851 	struct i40e_pf *pf = vsi->back;
3852 	int ret = 0;
3853 
3854 	if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3855 	    test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3856 		return -EBUSY;
3857 
3858 	if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3859 		return -EBUSY;
3860 
3861 	ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3862 
3863 	i40e_prune_flex_pit_list(pf);
3864 
3865 	i40e_fdir_check_and_reenable(pf);
3866 	return ret;
3867 }
3868 
3869 /**
3870  * i40e_unused_pit_index - Find an unused PIT index for given list
3871  * @pf: the PF data structure
3872  *
3873  * Find the first unused flexible PIT index entry. We search both the L3 and
3874  * L4 flexible PIT lists so that the returned index is unique and unused by
3875  * either currently programmed L3 or L4 filters. We use a bit field as storage
3876  * to track which indexes are already used.
3877  **/
3878 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3879 {
3880 	unsigned long available_index = 0xFF;
3881 	struct i40e_flex_pit *entry;
3882 
3883 	/* We need to make sure that the new index isn't in use by either L3
3884 	 * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3885 	 * L4 to use the same index.
3886 	 */
3887 
3888 	list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3889 		clear_bit(entry->pit_index, &available_index);
3890 
3891 	list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3892 		clear_bit(entry->pit_index, &available_index);
3893 
3894 	return find_first_bit(&available_index, 8);
3895 }
3896 
3897 /**
3898  * i40e_find_flex_offset - Find an existing flex src_offset
3899  * @flex_pit_list: L3 or L4 flex PIT list
3900  * @src_offset: new src_offset to find
3901  *
3902  * Searches the flex_pit_list for an existing offset. If no offset is
3903  * currently programmed, then this will return an ERR_PTR if there is no space
3904  * to add a new offset, otherwise it returns NULL.
3905  **/
3906 static
3907 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3908 					    u16 src_offset)
3909 {
3910 	struct i40e_flex_pit *entry;
3911 	int size = 0;
3912 
3913 	/* Search for the src_offset first. If we find a matching entry
3914 	 * already programmed, we can simply re-use it.
3915 	 */
3916 	list_for_each_entry(entry, flex_pit_list, list) {
3917 		size++;
3918 		if (entry->src_offset == src_offset)
3919 			return entry;
3920 	}
3921 
3922 	/* If we haven't found an entry yet, then the provided src offset has
3923 	 * not yet been programmed. We will program the src offset later on,
3924 	 * but we need to indicate whether there is enough space to do so
3925 	 * here. We'll make use of ERR_PTR for this purpose.
3926 	 */
3927 	if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3928 		return ERR_PTR(-ENOSPC);
3929 
3930 	return NULL;
3931 }
3932 
3933 /**
3934  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3935  * @flex_pit_list: L3 or L4 flex PIT list
3936  * @src_offset: new src_offset to add
3937  * @pit_index: the PIT index to program
3938  *
3939  * This function programs the new src_offset to the list. It is expected that
3940  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3941  * that this offset is not programmed, and that the list has enough space to
3942  * store another offset.
3943  *
3944  * Returns 0 on success, and negative value on error.
3945  **/
3946 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3947 				u16 src_offset,
3948 				u8 pit_index)
3949 {
3950 	struct i40e_flex_pit *new_pit, *entry;
3951 
3952 	new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3953 	if (!new_pit)
3954 		return -ENOMEM;
3955 
3956 	new_pit->src_offset = src_offset;
3957 	new_pit->pit_index = pit_index;
3958 
3959 	/* We need to insert this item such that the list is sorted by
3960 	 * src_offset in ascending order.
3961 	 */
3962 	list_for_each_entry(entry, flex_pit_list, list) {
3963 		if (new_pit->src_offset < entry->src_offset) {
3964 			list_add_tail(&new_pit->list, &entry->list);
3965 			return 0;
3966 		}
3967 
3968 		/* If we found an entry with our offset already programmed we
3969 		 * can simply return here, after freeing the memory. However,
3970 		 * if the pit_index does not match we need to report an error.
3971 		 */
3972 		if (new_pit->src_offset == entry->src_offset) {
3973 			int err = 0;
3974 
3975 			/* If the PIT index is not the same we can't re-use
3976 			 * the entry, so we must report an error.
3977 			 */
3978 			if (new_pit->pit_index != entry->pit_index)
3979 				err = -EINVAL;
3980 
3981 			kfree(new_pit);
3982 			return err;
3983 		}
3984 	}
3985 
3986 	/* If we reached here, then we haven't yet added the item. This means
3987 	 * that we should add the item at the end of the list.
3988 	 */
3989 	list_add_tail(&new_pit->list, flex_pit_list);
3990 	return 0;
3991 }
3992 
3993 /**
3994  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3995  * @pf: Pointer to the PF structure
3996  * @flex_pit_list: list of flexible src offsets in use
3997  * @flex_pit_start: index to first entry for this section of the table
3998  *
3999  * In order to handle flexible data, the hardware uses a table of values
4000  * called the FLX_PIT table. This table is used to indicate which sections of
4001  * the input correspond to what PIT index values. Unfortunately, hardware is
4002  * very restrictive about programming this table. Entries must be ordered by
4003  * src_offset in ascending order, without duplicates. Additionally, unused
4004  * entries must be set to the unused index value, and must have valid size and
4005  * length according to the src_offset ordering.
4006  *
4007  * This function will reprogram the FLX_PIT register from a book-keeping
4008  * structure that we guarantee is already ordered correctly, and has no more
4009  * than 3 entries.
4010  *
4011  * To make things easier, we only support flexible values of one word length,
4012  * rather than allowing variable length flexible values.
4013  **/
4014 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
4015 				      struct list_head *flex_pit_list,
4016 				      int flex_pit_start)
4017 {
4018 	struct i40e_flex_pit *entry = NULL;
4019 	u16 last_offset = 0;
4020 	int i = 0, j = 0;
4021 
4022 	/* First, loop over the list of flex PIT entries, and reprogram the
4023 	 * registers.
4024 	 */
4025 	list_for_each_entry(entry, flex_pit_list, list) {
4026 		/* We have to be careful when programming values for the
4027 		 * largest SRC_OFFSET value. It is possible that adding
4028 		 * additional empty values at the end would overflow the space
4029 		 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
4030 		 * we check here and add the empty values prior to adding the
4031 		 * largest value.
4032 		 *
4033 		 * To determine this, we will use a loop from i+1 to 3, which
4034 		 * will determine whether the unused entries would have valid
4035 		 * SRC_OFFSET. Note that there cannot be extra entries past
4036 		 * this value, because the only valid values would have been
4037 		 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
4038 		 * have been added to the list in the first place.
4039 		 */
4040 		for (j = i + 1; j < 3; j++) {
4041 			u16 offset = entry->src_offset + j;
4042 			int index = flex_pit_start + i;
4043 			u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4044 						       1,
4045 						       offset - 3);
4046 
4047 			if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
4048 				i40e_write_rx_ctl(&pf->hw,
4049 						  I40E_PRTQF_FLX_PIT(index),
4050 						  value);
4051 				i++;
4052 			}
4053 		}
4054 
4055 		/* Now, we can program the actual value into the table */
4056 		i40e_write_rx_ctl(&pf->hw,
4057 				  I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4058 				  I40E_FLEX_PREP_VAL(entry->pit_index + 50,
4059 						     1,
4060 						     entry->src_offset));
4061 		i++;
4062 	}
4063 
4064 	/* In order to program the last entries in the table, we need to
4065 	 * determine the valid offset. If the list is empty, we'll just start
4066 	 * with 0. Otherwise, we'll start with the last item offset and add 1.
4067 	 * This ensures that all entries have valid sizes. If we don't do this
4068 	 * correctly, the hardware will disable flexible field parsing.
4069 	 */
4070 	if (!list_empty(flex_pit_list))
4071 		last_offset = list_prev_entry(entry, list)->src_offset + 1;
4072 
4073 	for (; i < 3; i++, last_offset++) {
4074 		i40e_write_rx_ctl(&pf->hw,
4075 				  I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4076 				  I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4077 						     1,
4078 						     last_offset));
4079 	}
4080 }
4081 
4082 /**
4083  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
4084  * @pf: pointer to the PF structure
4085  *
4086  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
4087  * internal helper function for implementation details.
4088  **/
4089 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
4090 {
4091 	__i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
4092 				  I40E_FLEX_PIT_IDX_START_L3);
4093 
4094 	__i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
4095 				  I40E_FLEX_PIT_IDX_START_L4);
4096 
4097 	/* We also need to program the L3 and L4 GLQF ORT register */
4098 	i40e_write_rx_ctl(&pf->hw,
4099 			  I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
4100 			  I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
4101 					    3, 1));
4102 
4103 	i40e_write_rx_ctl(&pf->hw,
4104 			  I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
4105 			  I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
4106 					    3, 1));
4107 }
4108 
4109 /**
4110  * i40e_flow_str - Converts a flow_type into a human readable string
4111  * @fsp: the flow specification
4112  *
4113  * Currently only flow types we support are included here, and the string
4114  * value attempts to match what ethtool would use to configure this flow type.
4115  **/
4116 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4117 {
4118 	switch (fsp->flow_type & ~FLOW_EXT) {
4119 	case TCP_V4_FLOW:
4120 		return "tcp4";
4121 	case UDP_V4_FLOW:
4122 		return "udp4";
4123 	case SCTP_V4_FLOW:
4124 		return "sctp4";
4125 	case IP_USER_FLOW:
4126 		return "ip4";
4127 	case TCP_V6_FLOW:
4128 		return "tcp6";
4129 	case UDP_V6_FLOW:
4130 		return "udp6";
4131 	case SCTP_V6_FLOW:
4132 		return "sctp6";
4133 	case IPV6_USER_FLOW:
4134 		return "ip6";
4135 	default:
4136 		return "unknown";
4137 	}
4138 }
4139 
4140 /**
4141  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4142  * @pit_index: PIT index to convert
4143  *
4144  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4145  * of range.
4146  **/
4147 static u64 i40e_pit_index_to_mask(int pit_index)
4148 {
4149 	switch (pit_index) {
4150 	case 0:
4151 		return I40E_FLEX_50_MASK;
4152 	case 1:
4153 		return I40E_FLEX_51_MASK;
4154 	case 2:
4155 		return I40E_FLEX_52_MASK;
4156 	case 3:
4157 		return I40E_FLEX_53_MASK;
4158 	case 4:
4159 		return I40E_FLEX_54_MASK;
4160 	case 5:
4161 		return I40E_FLEX_55_MASK;
4162 	case 6:
4163 		return I40E_FLEX_56_MASK;
4164 	case 7:
4165 		return I40E_FLEX_57_MASK;
4166 	default:
4167 		return 0;
4168 	}
4169 }
4170 
4171 /**
4172  * i40e_print_input_set - Show changes between two input sets
4173  * @vsi: the vsi being configured
4174  * @old: the old input set
4175  * @new: the new input set
4176  *
4177  * Print the difference between old and new input sets by showing which series
4178  * of words are toggled on or off. Only displays the bits we actually support
4179  * changing.
4180  **/
4181 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4182 {
4183 	struct i40e_pf *pf = vsi->back;
4184 	bool old_value, new_value;
4185 	int i;
4186 
4187 	old_value = !!(old & I40E_L3_SRC_MASK);
4188 	new_value = !!(new & I40E_L3_SRC_MASK);
4189 	if (old_value != new_value)
4190 		netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4191 			   old_value ? "ON" : "OFF",
4192 			   new_value ? "ON" : "OFF");
4193 
4194 	old_value = !!(old & I40E_L3_DST_MASK);
4195 	new_value = !!(new & I40E_L3_DST_MASK);
4196 	if (old_value != new_value)
4197 		netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4198 			   old_value ? "ON" : "OFF",
4199 			   new_value ? "ON" : "OFF");
4200 
4201 	old_value = !!(old & I40E_L4_SRC_MASK);
4202 	new_value = !!(new & I40E_L4_SRC_MASK);
4203 	if (old_value != new_value)
4204 		netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4205 			   old_value ? "ON" : "OFF",
4206 			   new_value ? "ON" : "OFF");
4207 
4208 	old_value = !!(old & I40E_L4_DST_MASK);
4209 	new_value = !!(new & I40E_L4_DST_MASK);
4210 	if (old_value != new_value)
4211 		netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4212 			   old_value ? "ON" : "OFF",
4213 			   new_value ? "ON" : "OFF");
4214 
4215 	old_value = !!(old & I40E_VERIFY_TAG_MASK);
4216 	new_value = !!(new & I40E_VERIFY_TAG_MASK);
4217 	if (old_value != new_value)
4218 		netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4219 			   old_value ? "ON" : "OFF",
4220 			   new_value ? "ON" : "OFF");
4221 
4222 	/* Show change of flexible filter entries */
4223 	for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4224 		u64 flex_mask = i40e_pit_index_to_mask(i);
4225 
4226 		old_value = !!(old & flex_mask);
4227 		new_value = !!(new & flex_mask);
4228 		if (old_value != new_value)
4229 			netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4230 				   i,
4231 				   old_value ? "ON" : "OFF",
4232 				   new_value ? "ON" : "OFF");
4233 	}
4234 
4235 	netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
4236 		   old);
4237 	netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4238 		   new);
4239 }
4240 
4241 /**
4242  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4243  * @vsi: pointer to the targeted VSI
4244  * @fsp: pointer to Rx flow specification
4245  * @userdef: userdefined data from flow specification
4246  *
4247  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4248  * for partial matches exists with a few limitations. First, hardware only
4249  * supports masking by word boundary (2 bytes) and not per individual bit.
4250  * Second, hardware is limited to using one mask for a flow type and cannot
4251  * use a separate mask for each filter.
4252  *
4253  * To support these limitations, if we already have a configured filter for
4254  * the specified type, this function enforces that new filters of the type
4255  * match the configured input set. Otherwise, if we do not have a filter of
4256  * the specified type, we allow the input set to be updated to match the
4257  * desired filter.
4258  *
4259  * To help ensure that administrators understand why filters weren't displayed
4260  * as supported, we print a diagnostic message displaying how the input set
4261  * would change and warning to delete the preexisting filters if required.
4262  *
4263  * Returns 0 on successful input set match, and a negative return code on
4264  * failure.
4265  **/
4266 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4267 				     struct ethtool_rx_flow_spec *fsp,
4268 				     struct i40e_rx_flow_userdef *userdef)
4269 {
4270 	static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4271 		cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4272 		cpu_to_be32(0xffffffff)};
4273 	struct ethtool_tcpip6_spec *tcp_ip6_spec;
4274 	struct ethtool_usrip6_spec *usr_ip6_spec;
4275 	struct ethtool_tcpip4_spec *tcp_ip4_spec;
4276 	struct ethtool_usrip4_spec *usr_ip4_spec;
4277 	struct i40e_pf *pf = vsi->back;
4278 	u64 current_mask, new_mask;
4279 	bool new_flex_offset = false;
4280 	bool flex_l3 = false;
4281 	u16 *fdir_filter_count;
4282 	u16 index, src_offset = 0;
4283 	u8 pit_index = 0;
4284 	int err;
4285 
4286 	switch (fsp->flow_type & ~FLOW_EXT) {
4287 	case SCTP_V4_FLOW:
4288 		index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4289 		fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4290 		break;
4291 	case TCP_V4_FLOW:
4292 		index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4293 		fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4294 		break;
4295 	case UDP_V4_FLOW:
4296 		index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4297 		fdir_filter_count = &pf->fd_udp4_filter_cnt;
4298 		break;
4299 	case SCTP_V6_FLOW:
4300 		index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4301 		fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4302 		break;
4303 	case TCP_V6_FLOW:
4304 		index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4305 		fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4306 		break;
4307 	case UDP_V6_FLOW:
4308 		index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4309 		fdir_filter_count = &pf->fd_udp6_filter_cnt;
4310 		break;
4311 	case IP_USER_FLOW:
4312 		index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4313 		fdir_filter_count = &pf->fd_ip4_filter_cnt;
4314 		flex_l3 = true;
4315 		break;
4316 	case IPV6_USER_FLOW:
4317 		index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4318 		fdir_filter_count = &pf->fd_ip6_filter_cnt;
4319 		flex_l3 = true;
4320 		break;
4321 	default:
4322 		return -EOPNOTSUPP;
4323 	}
4324 
4325 	/* Read the current input set from register memory. */
4326 	current_mask = i40e_read_fd_input_set(pf, index);
4327 	new_mask = current_mask;
4328 
4329 	/* Determine, if any, the required changes to the input set in order
4330 	 * to support the provided mask.
4331 	 *
4332 	 * Hardware only supports masking at word (2 byte) granularity and does
4333 	 * not support full bitwise masking. This implementation simplifies
4334 	 * even further and only supports fully enabled or fully disabled
4335 	 * masks for each field, even though we could split the ip4src and
4336 	 * ip4dst fields.
4337 	 */
4338 	switch (fsp->flow_type & ~FLOW_EXT) {
4339 	case SCTP_V4_FLOW:
4340 		new_mask &= ~I40E_VERIFY_TAG_MASK;
4341 		fallthrough;
4342 	case TCP_V4_FLOW:
4343 	case UDP_V4_FLOW:
4344 		tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4345 
4346 		/* IPv4 source address */
4347 		if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4348 			new_mask |= I40E_L3_SRC_MASK;
4349 		else if (!tcp_ip4_spec->ip4src)
4350 			new_mask &= ~I40E_L3_SRC_MASK;
4351 		else
4352 			return -EOPNOTSUPP;
4353 
4354 		/* IPv4 destination address */
4355 		if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4356 			new_mask |= I40E_L3_DST_MASK;
4357 		else if (!tcp_ip4_spec->ip4dst)
4358 			new_mask &= ~I40E_L3_DST_MASK;
4359 		else
4360 			return -EOPNOTSUPP;
4361 
4362 		/* L4 source port */
4363 		if (tcp_ip4_spec->psrc == htons(0xFFFF))
4364 			new_mask |= I40E_L4_SRC_MASK;
4365 		else if (!tcp_ip4_spec->psrc)
4366 			new_mask &= ~I40E_L4_SRC_MASK;
4367 		else
4368 			return -EOPNOTSUPP;
4369 
4370 		/* L4 destination port */
4371 		if (tcp_ip4_spec->pdst == htons(0xFFFF))
4372 			new_mask |= I40E_L4_DST_MASK;
4373 		else if (!tcp_ip4_spec->pdst)
4374 			new_mask &= ~I40E_L4_DST_MASK;
4375 		else
4376 			return -EOPNOTSUPP;
4377 
4378 		/* Filtering on Type of Service is not supported. */
4379 		if (tcp_ip4_spec->tos)
4380 			return -EOPNOTSUPP;
4381 
4382 		break;
4383 	case SCTP_V6_FLOW:
4384 		new_mask &= ~I40E_VERIFY_TAG_MASK;
4385 		fallthrough;
4386 	case TCP_V6_FLOW:
4387 	case UDP_V6_FLOW:
4388 		tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4389 
4390 		/* Check if user provided IPv6 source address. */
4391 		if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4392 				    (struct in6_addr *)&ipv6_full_mask))
4393 			new_mask |= I40E_L3_V6_SRC_MASK;
4394 		else if (ipv6_addr_any((struct in6_addr *)
4395 				       &tcp_ip6_spec->ip6src))
4396 			new_mask &= ~I40E_L3_V6_SRC_MASK;
4397 		else
4398 			return -EOPNOTSUPP;
4399 
4400 		/* Check if user provided destination address. */
4401 		if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4402 				    (struct in6_addr *)&ipv6_full_mask))
4403 			new_mask |= I40E_L3_V6_DST_MASK;
4404 		else if (ipv6_addr_any((struct in6_addr *)
4405 				       &tcp_ip6_spec->ip6dst))
4406 			new_mask &= ~I40E_L3_V6_DST_MASK;
4407 		else
4408 			return -EOPNOTSUPP;
4409 
4410 		/* L4 source port */
4411 		if (tcp_ip6_spec->psrc == htons(0xFFFF))
4412 			new_mask |= I40E_L4_SRC_MASK;
4413 		else if (!tcp_ip6_spec->psrc)
4414 			new_mask &= ~I40E_L4_SRC_MASK;
4415 		else
4416 			return -EOPNOTSUPP;
4417 
4418 		/* L4 destination port */
4419 		if (tcp_ip6_spec->pdst == htons(0xFFFF))
4420 			new_mask |= I40E_L4_DST_MASK;
4421 		else if (!tcp_ip6_spec->pdst)
4422 			new_mask &= ~I40E_L4_DST_MASK;
4423 		else
4424 			return -EOPNOTSUPP;
4425 
4426 		/* Filtering on Traffic Classes is not supported. */
4427 		if (tcp_ip6_spec->tclass)
4428 			return -EOPNOTSUPP;
4429 		break;
4430 	case IP_USER_FLOW:
4431 		usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4432 
4433 		/* IPv4 source address */
4434 		if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4435 			new_mask |= I40E_L3_SRC_MASK;
4436 		else if (!usr_ip4_spec->ip4src)
4437 			new_mask &= ~I40E_L3_SRC_MASK;
4438 		else
4439 			return -EOPNOTSUPP;
4440 
4441 		/* IPv4 destination address */
4442 		if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4443 			new_mask |= I40E_L3_DST_MASK;
4444 		else if (!usr_ip4_spec->ip4dst)
4445 			new_mask &= ~I40E_L3_DST_MASK;
4446 		else
4447 			return -EOPNOTSUPP;
4448 
4449 		/* First 4 bytes of L4 header */
4450 		if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4451 			new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4452 		else if (!usr_ip4_spec->l4_4_bytes)
4453 			new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4454 		else
4455 			return -EOPNOTSUPP;
4456 
4457 		/* Filtering on Type of Service is not supported. */
4458 		if (usr_ip4_spec->tos)
4459 			return -EOPNOTSUPP;
4460 
4461 		/* Filtering on IP version is not supported */
4462 		if (usr_ip4_spec->ip_ver)
4463 			return -EINVAL;
4464 
4465 		/* Filtering on L4 protocol is not supported */
4466 		if (usr_ip4_spec->proto)
4467 			return -EINVAL;
4468 
4469 		break;
4470 	case IPV6_USER_FLOW:
4471 		usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4472 
4473 		/* Check if user provided IPv6 source address. */
4474 		if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4475 				    (struct in6_addr *)&ipv6_full_mask))
4476 			new_mask |= I40E_L3_V6_SRC_MASK;
4477 		else if (ipv6_addr_any((struct in6_addr *)
4478 				       &usr_ip6_spec->ip6src))
4479 			new_mask &= ~I40E_L3_V6_SRC_MASK;
4480 		else
4481 			return -EOPNOTSUPP;
4482 
4483 		/* Check if user provided destination address. */
4484 		if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4485 				    (struct in6_addr *)&ipv6_full_mask))
4486 			new_mask |= I40E_L3_V6_DST_MASK;
4487 		else if (ipv6_addr_any((struct in6_addr *)
4488 				       &usr_ip6_spec->ip6src))
4489 			new_mask &= ~I40E_L3_V6_DST_MASK;
4490 		else
4491 			return -EOPNOTSUPP;
4492 
4493 		if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4494 			new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4495 		else if (!usr_ip6_spec->l4_4_bytes)
4496 			new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4497 		else
4498 			return -EOPNOTSUPP;
4499 
4500 		/* Filtering on Traffic class is not supported. */
4501 		if (usr_ip6_spec->tclass)
4502 			return -EOPNOTSUPP;
4503 
4504 		/* Filtering on L4 protocol is not supported */
4505 		if (usr_ip6_spec->l4_proto)
4506 			return -EINVAL;
4507 
4508 		break;
4509 	default:
4510 		return -EOPNOTSUPP;
4511 	}
4512 
4513 	if (fsp->flow_type & FLOW_EXT) {
4514 		/* Allow only 802.1Q and no etype defined, as
4515 		 * later it's modified to 0x8100
4516 		 */
4517 		if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4518 		    fsp->h_ext.vlan_etype != 0)
4519 			return -EOPNOTSUPP;
4520 		if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4521 			new_mask |= I40E_VLAN_SRC_MASK;
4522 		else
4523 			new_mask &= ~I40E_VLAN_SRC_MASK;
4524 	}
4525 
4526 	/* First, clear all flexible filter entries */
4527 	new_mask &= ~I40E_FLEX_INPUT_MASK;
4528 
4529 	/* If we have a flexible filter, try to add this offset to the correct
4530 	 * flexible filter PIT list. Once finished, we can update the mask.
4531 	 * If the src_offset changed, we will get a new mask value which will
4532 	 * trigger an input set change.
4533 	 */
4534 	if (userdef->flex_filter) {
4535 		struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4536 
4537 		/* Flexible offset must be even, since the flexible payload
4538 		 * must be aligned on 2-byte boundary.
4539 		 */
4540 		if (userdef->flex_offset & 0x1) {
4541 			dev_warn(&pf->pdev->dev,
4542 				 "Flexible data offset must be 2-byte aligned\n");
4543 			return -EINVAL;
4544 		}
4545 
4546 		src_offset = userdef->flex_offset >> 1;
4547 
4548 		/* FLX_PIT source offset value is only so large */
4549 		if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4550 			dev_warn(&pf->pdev->dev,
4551 				 "Flexible data must reside within first 64 bytes of the packet payload\n");
4552 			return -EINVAL;
4553 		}
4554 
4555 		/* See if this offset has already been programmed. If we get
4556 		 * an ERR_PTR, then the filter is not safe to add. Otherwise,
4557 		 * if we get a NULL pointer, this means we will need to add
4558 		 * the offset.
4559 		 */
4560 		flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4561 						 src_offset);
4562 		if (IS_ERR(flex_pit))
4563 			return PTR_ERR(flex_pit);
4564 
4565 		/* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4566 		 * packet types, and thus we need to program both L3 and L4
4567 		 * flexible values. These must have identical flexible index,
4568 		 * as otherwise we can't correctly program the input set. So
4569 		 * we'll find both an L3 and L4 index and make sure they are
4570 		 * the same.
4571 		 */
4572 		if (flex_l3) {
4573 			l3_flex_pit =
4574 				i40e_find_flex_offset(&pf->l3_flex_pit_list,
4575 						      src_offset);
4576 			if (IS_ERR(l3_flex_pit))
4577 				return PTR_ERR(l3_flex_pit);
4578 
4579 			if (flex_pit) {
4580 				/* If we already had a matching L4 entry, we
4581 				 * need to make sure that the L3 entry we
4582 				 * obtained uses the same index.
4583 				 */
4584 				if (l3_flex_pit) {
4585 					if (l3_flex_pit->pit_index !=
4586 					    flex_pit->pit_index) {
4587 						return -EINVAL;
4588 					}
4589 				} else {
4590 					new_flex_offset = true;
4591 				}
4592 			} else {
4593 				flex_pit = l3_flex_pit;
4594 			}
4595 		}
4596 
4597 		/* If we didn't find an existing flex offset, we need to
4598 		 * program a new one. However, we don't immediately program it
4599 		 * here because we will wait to program until after we check
4600 		 * that it is safe to change the input set.
4601 		 */
4602 		if (!flex_pit) {
4603 			new_flex_offset = true;
4604 			pit_index = i40e_unused_pit_index(pf);
4605 		} else {
4606 			pit_index = flex_pit->pit_index;
4607 		}
4608 
4609 		/* Update the mask with the new offset */
4610 		new_mask |= i40e_pit_index_to_mask(pit_index);
4611 	}
4612 
4613 	/* If the mask and flexible filter offsets for this filter match the
4614 	 * currently programmed values we don't need any input set change, so
4615 	 * this filter is safe to install.
4616 	 */
4617 	if (new_mask == current_mask && !new_flex_offset)
4618 		return 0;
4619 
4620 	netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4621 		   i40e_flow_str(fsp));
4622 	i40e_print_input_set(vsi, current_mask, new_mask);
4623 	if (new_flex_offset) {
4624 		netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4625 			   pit_index, src_offset);
4626 	}
4627 
4628 	/* Hardware input sets are global across multiple ports, so even the
4629 	 * main port cannot change them when in MFP mode as this would impact
4630 	 * any filters on the other ports.
4631 	 */
4632 	if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4633 		netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4634 		return -EOPNOTSUPP;
4635 	}
4636 
4637 	/* This filter requires us to update the input set. However, hardware
4638 	 * only supports one input set per flow type, and does not support
4639 	 * separate masks for each filter. This means that we can only support
4640 	 * a single mask for all filters of a specific type.
4641 	 *
4642 	 * If we have preexisting filters, they obviously depend on the
4643 	 * current programmed input set. Display a diagnostic message in this
4644 	 * case explaining why the filter could not be accepted.
4645 	 */
4646 	if (*fdir_filter_count) {
4647 		netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4648 			  i40e_flow_str(fsp),
4649 			  *fdir_filter_count);
4650 		return -EOPNOTSUPP;
4651 	}
4652 
4653 	i40e_write_fd_input_set(pf, index, new_mask);
4654 
4655 	/* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4656 	 * frames. If we're programming the input set for IPv4/Other, we also
4657 	 * need to program the IPv4/Fragmented input set. Since we don't have
4658 	 * separate support, we'll always assume and enforce that the two flow
4659 	 * types must have matching input sets.
4660 	 */
4661 	if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4662 		i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4663 					new_mask);
4664 
4665 	/* Add the new offset and update table, if necessary */
4666 	if (new_flex_offset) {
4667 		err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4668 					   pit_index);
4669 		if (err)
4670 			return err;
4671 
4672 		if (flex_l3) {
4673 			err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4674 						   src_offset,
4675 						   pit_index);
4676 			if (err)
4677 				return err;
4678 		}
4679 
4680 		i40e_reprogram_flex_pit(pf);
4681 	}
4682 
4683 	return 0;
4684 }
4685 
4686 /**
4687  * i40e_match_fdir_filter - Return true of two filters match
4688  * @a: pointer to filter struct
4689  * @b: pointer to filter struct
4690  *
4691  * Returns true if the two filters match exactly the same criteria. I.e. they
4692  * match the same flow type and have the same parameters. We don't need to
4693  * check any input-set since all filters of the same flow type must use the
4694  * same input set.
4695  **/
4696 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4697 				   struct i40e_fdir_filter *b)
4698 {
4699 	/* The filters do not much if any of these criteria differ. */
4700 	if (a->dst_ip != b->dst_ip ||
4701 	    a->src_ip != b->src_ip ||
4702 	    a->dst_port != b->dst_port ||
4703 	    a->src_port != b->src_port ||
4704 	    a->flow_type != b->flow_type ||
4705 	    a->ipl4_proto != b->ipl4_proto ||
4706 	    a->vlan_tag != b->vlan_tag ||
4707 	    a->vlan_etype != b->vlan_etype)
4708 		return false;
4709 
4710 	return true;
4711 }
4712 
4713 /**
4714  * i40e_disallow_matching_filters - Check that new filters differ
4715  * @vsi: pointer to the targeted VSI
4716  * @input: new filter to check
4717  *
4718  * Due to hardware limitations, it is not possible for two filters that match
4719  * similar criteria to be programmed at the same time. This is true for a few
4720  * reasons:
4721  *
4722  * (a) all filters matching a particular flow type must use the same input
4723  * set, that is they must match the same criteria.
4724  * (b) different flow types will never match the same packet, as the flow type
4725  * is decided by hardware before checking which rules apply.
4726  * (c) hardware has no way to distinguish which order filters apply in.
4727  *
4728  * Due to this, we can't really support using the location data to order
4729  * filters in the hardware parsing. It is technically possible for the user to
4730  * request two filters matching the same criteria but which select different
4731  * queues. In this case, rather than keep both filters in the list, we reject
4732  * the 2nd filter when the user requests adding it.
4733  *
4734  * This avoids needing to track location for programming the filter to
4735  * hardware, and ensures that we avoid some strange scenarios involving
4736  * deleting filters which match the same criteria.
4737  **/
4738 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4739 					  struct i40e_fdir_filter *input)
4740 {
4741 	struct i40e_pf *pf = vsi->back;
4742 	struct i40e_fdir_filter *rule;
4743 	struct hlist_node *node2;
4744 
4745 	/* Loop through every filter, and check that it doesn't match */
4746 	hlist_for_each_entry_safe(rule, node2,
4747 				  &pf->fdir_filter_list, fdir_node) {
4748 		/* Don't check the filters match if they share the same fd_id,
4749 		 * since the new filter is actually just updating the target
4750 		 * of the old filter.
4751 		 */
4752 		if (rule->fd_id == input->fd_id)
4753 			continue;
4754 
4755 		/* If any filters match, then print a warning message to the
4756 		 * kernel message buffer and bail out.
4757 		 */
4758 		if (i40e_match_fdir_filter(rule, input)) {
4759 			dev_warn(&pf->pdev->dev,
4760 				 "Existing user defined filter %d already matches this flow.\n",
4761 				 rule->fd_id);
4762 			return -EINVAL;
4763 		}
4764 	}
4765 
4766 	return 0;
4767 }
4768 
4769 /**
4770  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4771  * @vsi: pointer to the targeted VSI
4772  * @cmd: command to get or set RX flow classification rules
4773  *
4774  * Add Flow Director filters for a specific flow spec based on their
4775  * protocol.  Returns 0 if the filters were successfully added.
4776  **/
4777 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4778 				 struct ethtool_rxnfc *cmd)
4779 {
4780 	struct i40e_rx_flow_userdef userdef;
4781 	struct ethtool_rx_flow_spec *fsp;
4782 	struct i40e_fdir_filter *input;
4783 	u16 dest_vsi = 0, q_index = 0;
4784 	struct i40e_pf *pf;
4785 	int ret = -EINVAL;
4786 	u8 dest_ctl;
4787 
4788 	if (!vsi)
4789 		return -EINVAL;
4790 	pf = vsi->back;
4791 
4792 	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4793 		return -EOPNOTSUPP;
4794 
4795 	if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4796 		return -ENOSPC;
4797 
4798 	if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4799 	    test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4800 		return -EBUSY;
4801 
4802 	if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4803 		return -EBUSY;
4804 
4805 	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4806 
4807 	/* Parse the user-defined field */
4808 	if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4809 		return -EINVAL;
4810 
4811 	/* Extended MAC field is not supported */
4812 	if (fsp->flow_type & FLOW_MAC_EXT)
4813 		return -EINVAL;
4814 
4815 	ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4816 	if (ret)
4817 		return ret;
4818 
4819 	if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4820 			      pf->hw.func_caps.fd_filters_guaranteed)) {
4821 		return -EINVAL;
4822 	}
4823 
4824 	/* ring_cookie is either the drop index, or is a mask of the queue
4825 	 * index and VF id we wish to target.
4826 	 */
4827 	if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4828 		dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4829 	} else {
4830 		u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4831 		u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4832 
4833 		if (!vf) {
4834 			if (ring >= vsi->num_queue_pairs)
4835 				return -EINVAL;
4836 			dest_vsi = vsi->id;
4837 		} else {
4838 			/* VFs are zero-indexed, so we subtract one here */
4839 			vf--;
4840 
4841 			if (vf >= pf->num_alloc_vfs)
4842 				return -EINVAL;
4843 			if (ring >= pf->vf[vf].num_queue_pairs)
4844 				return -EINVAL;
4845 			dest_vsi = pf->vf[vf].lan_vsi_id;
4846 		}
4847 		dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4848 		q_index = ring;
4849 	}
4850 
4851 	input = kzalloc(sizeof(*input), GFP_KERNEL);
4852 
4853 	if (!input)
4854 		return -ENOMEM;
4855 
4856 	input->fd_id = fsp->location;
4857 	input->q_index = q_index;
4858 	input->dest_vsi = dest_vsi;
4859 	input->dest_ctl = dest_ctl;
4860 	input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4861 	input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4862 	input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4863 	input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4864 	input->flow_type = fsp->flow_type & ~FLOW_EXT;
4865 
4866 	input->vlan_etype = fsp->h_ext.vlan_etype;
4867 	if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4868 		input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4869 	if (fsp->m_ext.vlan_tci && input->vlan_etype)
4870 		input->vlan_tag = fsp->h_ext.vlan_tci;
4871 	if (input->flow_type == IPV6_USER_FLOW ||
4872 	    input->flow_type == UDP_V6_FLOW ||
4873 	    input->flow_type == TCP_V6_FLOW ||
4874 	    input->flow_type == SCTP_V6_FLOW) {
4875 		/* Reverse the src and dest notion, since the HW expects them
4876 		 * to be from Tx perspective where as the input from user is
4877 		 * from Rx filter view.
4878 		 */
4879 		input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4880 		input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4881 		input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4882 		memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4883 		       sizeof(__be32) * 4);
4884 		memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4885 		       sizeof(__be32) * 4);
4886 	} else {
4887 		/* Reverse the src and dest notion, since the HW expects them
4888 		 * to be from Tx perspective where as the input from user is
4889 		 * from Rx filter view.
4890 		 */
4891 		input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4892 		input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4893 		input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4894 		input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4895 		input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4896 	}
4897 
4898 	if (userdef.flex_filter) {
4899 		input->flex_filter = true;
4900 		input->flex_word = cpu_to_be16(userdef.flex_word);
4901 		input->flex_offset = userdef.flex_offset;
4902 	}
4903 
4904 	/* Avoid programming two filters with identical match criteria. */
4905 	ret = i40e_disallow_matching_filters(vsi, input);
4906 	if (ret)
4907 		goto free_filter_memory;
4908 
4909 	/* Add the input filter to the fdir_input_list, possibly replacing
4910 	 * a previous filter. Do not free the input structure after adding it
4911 	 * to the list as this would cause a use-after-free bug.
4912 	 */
4913 	i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4914 	ret = i40e_add_del_fdir(vsi, input, true);
4915 	if (ret)
4916 		goto remove_sw_rule;
4917 	return 0;
4918 
4919 remove_sw_rule:
4920 	hlist_del(&input->fdir_node);
4921 	pf->fdir_pf_active_filters--;
4922 free_filter_memory:
4923 	kfree(input);
4924 	return ret;
4925 }
4926 
4927 /**
4928  * i40e_set_rxnfc - command to set RX flow classification rules
4929  * @netdev: network interface device structure
4930  * @cmd: ethtool rxnfc command
4931  *
4932  * Returns Success if the command is supported.
4933  **/
4934 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4935 {
4936 	struct i40e_netdev_priv *np = netdev_priv(netdev);
4937 	struct i40e_vsi *vsi = np->vsi;
4938 	struct i40e_pf *pf = vsi->back;
4939 	int ret = -EOPNOTSUPP;
4940 
4941 	switch (cmd->cmd) {
4942 	case ETHTOOL_SRXFH:
4943 		ret = i40e_set_rss_hash_opt(pf, cmd);
4944 		break;
4945 	case ETHTOOL_SRXCLSRLINS:
4946 		ret = i40e_add_fdir_ethtool(vsi, cmd);
4947 		break;
4948 	case ETHTOOL_SRXCLSRLDEL:
4949 		ret = i40e_del_fdir_entry(vsi, cmd);
4950 		break;
4951 	default:
4952 		break;
4953 	}
4954 
4955 	return ret;
4956 }
4957 
4958 /**
4959  * i40e_max_channels - get Max number of combined channels supported
4960  * @vsi: vsi pointer
4961  **/
4962 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4963 {
4964 	/* TODO: This code assumes DCB and FD is disabled for now. */
4965 	return vsi->alloc_queue_pairs;
4966 }
4967 
4968 /**
4969  * i40e_get_channels - Get the current channels enabled and max supported etc.
4970  * @dev: network interface device structure
4971  * @ch: ethtool channels structure
4972  *
4973  * We don't support separate tx and rx queues as channels. The other count
4974  * represents how many queues are being used for control. max_combined counts
4975  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4976  * q_vectors since we support a lot more queue pairs than q_vectors.
4977  **/
4978 static void i40e_get_channels(struct net_device *dev,
4979 			      struct ethtool_channels *ch)
4980 {
4981 	struct i40e_netdev_priv *np = netdev_priv(dev);
4982 	struct i40e_vsi *vsi = np->vsi;
4983 	struct i40e_pf *pf = vsi->back;
4984 
4985 	/* report maximum channels */
4986 	ch->max_combined = i40e_max_channels(vsi);
4987 
4988 	/* report info for other vector */
4989 	ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4990 	ch->max_other = ch->other_count;
4991 
4992 	/* Note: This code assumes DCB is disabled for now. */
4993 	ch->combined_count = vsi->num_queue_pairs;
4994 }
4995 
4996 /**
4997  * i40e_set_channels - Set the new channels count.
4998  * @dev: network interface device structure
4999  * @ch: ethtool channels structure
5000  *
5001  * The new channels count may not be the same as requested by the user
5002  * since it gets rounded down to a power of 2 value.
5003  **/
5004 static int i40e_set_channels(struct net_device *dev,
5005 			     struct ethtool_channels *ch)
5006 {
5007 	const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
5008 	struct i40e_netdev_priv *np = netdev_priv(dev);
5009 	unsigned int count = ch->combined_count;
5010 	struct i40e_vsi *vsi = np->vsi;
5011 	struct i40e_pf *pf = vsi->back;
5012 	struct i40e_fdir_filter *rule;
5013 	struct hlist_node *node2;
5014 	int new_count;
5015 	int err = 0;
5016 
5017 	/* We do not support setting channels for any other VSI at present */
5018 	if (vsi->type != I40E_VSI_MAIN)
5019 		return -EINVAL;
5020 
5021 	/* We do not support setting channels via ethtool when TCs are
5022 	 * configured through mqprio
5023 	 */
5024 	if (i40e_is_tc_mqprio_enabled(pf))
5025 		return -EINVAL;
5026 
5027 	/* verify they are not requesting separate vectors */
5028 	if (!count || ch->rx_count || ch->tx_count)
5029 		return -EINVAL;
5030 
5031 	/* verify other_count has not changed */
5032 	if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
5033 		return -EINVAL;
5034 
5035 	/* verify the number of channels does not exceed hardware limits */
5036 	if (count > i40e_max_channels(vsi))
5037 		return -EINVAL;
5038 
5039 	/* verify that the number of channels does not invalidate any current
5040 	 * flow director rules
5041 	 */
5042 	hlist_for_each_entry_safe(rule, node2,
5043 				  &pf->fdir_filter_list, fdir_node) {
5044 		if (rule->dest_ctl != drop && count <= rule->q_index) {
5045 			dev_warn(&pf->pdev->dev,
5046 				 "Existing user defined filter %d assigns flow to queue %d\n",
5047 				 rule->fd_id, rule->q_index);
5048 			err = -EINVAL;
5049 		}
5050 	}
5051 
5052 	if (err) {
5053 		dev_err(&pf->pdev->dev,
5054 			"Existing filter rules must be deleted to reduce combined channel count to %d\n",
5055 			count);
5056 		return err;
5057 	}
5058 
5059 	/* update feature limits from largest to smallest supported values */
5060 	/* TODO: Flow director limit, DCB etc */
5061 
5062 	/* use rss_reconfig to rebuild with new queue count and update traffic
5063 	 * class queue mapping
5064 	 */
5065 	new_count = i40e_reconfig_rss_queues(pf, count);
5066 	if (new_count > 0)
5067 		return 0;
5068 	else
5069 		return -EINVAL;
5070 }
5071 
5072 /**
5073  * i40e_get_rxfh_key_size - get the RSS hash key size
5074  * @netdev: network interface device structure
5075  *
5076  * Returns the table size.
5077  **/
5078 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
5079 {
5080 	return I40E_HKEY_ARRAY_SIZE;
5081 }
5082 
5083 /**
5084  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
5085  * @netdev: network interface device structure
5086  *
5087  * Returns the table size.
5088  **/
5089 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
5090 {
5091 	return I40E_HLUT_ARRAY_SIZE;
5092 }
5093 
5094 /**
5095  * i40e_get_rxfh - get the rx flow hash indirection table
5096  * @netdev: network interface device structure
5097  * @indir: indirection table
5098  * @key: hash key
5099  * @hfunc: hash function
5100  *
5101  * Reads the indirection table directly from the hardware. Returns 0 on
5102  * success.
5103  **/
5104 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
5105 			 u8 *hfunc)
5106 {
5107 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5108 	struct i40e_vsi *vsi = np->vsi;
5109 	u8 *lut, *seed = NULL;
5110 	int ret;
5111 	u16 i;
5112 
5113 	if (hfunc)
5114 		*hfunc = ETH_RSS_HASH_TOP;
5115 
5116 	if (!indir)
5117 		return 0;
5118 
5119 	seed = key;
5120 	lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5121 	if (!lut)
5122 		return -ENOMEM;
5123 	ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5124 	if (ret)
5125 		goto out;
5126 	for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5127 		indir[i] = (u32)(lut[i]);
5128 
5129 out:
5130 	kfree(lut);
5131 
5132 	return ret;
5133 }
5134 
5135 /**
5136  * i40e_set_rxfh - set the rx flow hash indirection table
5137  * @netdev: network interface device structure
5138  * @indir: indirection table
5139  * @key: hash key
5140  * @hfunc: hash function to use
5141  *
5142  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5143  * returns 0 after programming the table.
5144  **/
5145 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
5146 			 const u8 *key, const u8 hfunc)
5147 {
5148 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5149 	struct i40e_vsi *vsi = np->vsi;
5150 	struct i40e_pf *pf = vsi->back;
5151 	u8 *seed = NULL;
5152 	u16 i;
5153 
5154 	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5155 		return -EOPNOTSUPP;
5156 
5157 	if (key) {
5158 		if (!vsi->rss_hkey_user) {
5159 			vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5160 						     GFP_KERNEL);
5161 			if (!vsi->rss_hkey_user)
5162 				return -ENOMEM;
5163 		}
5164 		memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5165 		seed = vsi->rss_hkey_user;
5166 	}
5167 	if (!vsi->rss_lut_user) {
5168 		vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5169 		if (!vsi->rss_lut_user)
5170 			return -ENOMEM;
5171 	}
5172 
5173 	/* Each 32 bits pointed by 'indir' is stored with a lut entry */
5174 	if (indir)
5175 		for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5176 			vsi->rss_lut_user[i] = (u8)(indir[i]);
5177 	else
5178 		i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5179 				  vsi->rss_size);
5180 
5181 	return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5182 			       I40E_HLUT_ARRAY_SIZE);
5183 }
5184 
5185 /**
5186  * i40e_get_priv_flags - report device private flags
5187  * @dev: network interface device structure
5188  *
5189  * The get string set count and the string set should be matched for each
5190  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
5191  * array.
5192  *
5193  * Returns a u32 bitmap of flags.
5194  **/
5195 static u32 i40e_get_priv_flags(struct net_device *dev)
5196 {
5197 	struct i40e_netdev_priv *np = netdev_priv(dev);
5198 	struct i40e_vsi *vsi = np->vsi;
5199 	struct i40e_pf *pf = vsi->back;
5200 	u32 i, j, ret_flags = 0;
5201 
5202 	for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5203 		const struct i40e_priv_flags *priv_flags;
5204 
5205 		priv_flags = &i40e_gstrings_priv_flags[i];
5206 
5207 		if (priv_flags->flag & pf->flags)
5208 			ret_flags |= BIT(i);
5209 	}
5210 
5211 	if (pf->hw.pf_id != 0)
5212 		return ret_flags;
5213 
5214 	for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5215 		const struct i40e_priv_flags *priv_flags;
5216 
5217 		priv_flags = &i40e_gl_gstrings_priv_flags[j];
5218 
5219 		if (priv_flags->flag & pf->flags)
5220 			ret_flags |= BIT(i + j);
5221 	}
5222 
5223 	return ret_flags;
5224 }
5225 
5226 /**
5227  * i40e_set_priv_flags - set private flags
5228  * @dev: network interface device structure
5229  * @flags: bit flags to be set
5230  **/
5231 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5232 {
5233 	struct i40e_netdev_priv *np = netdev_priv(dev);
5234 	u64 orig_flags, new_flags, changed_flags;
5235 	enum i40e_admin_queue_err adq_err;
5236 	struct i40e_vsi *vsi = np->vsi;
5237 	struct i40e_pf *pf = vsi->back;
5238 	u32 reset_needed = 0;
5239 	i40e_status status;
5240 	u32 i, j;
5241 
5242 	orig_flags = READ_ONCE(pf->flags);
5243 	new_flags = orig_flags;
5244 
5245 	for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5246 		const struct i40e_priv_flags *priv_flags;
5247 
5248 		priv_flags = &i40e_gstrings_priv_flags[i];
5249 
5250 		if (flags & BIT(i))
5251 			new_flags |= priv_flags->flag;
5252 		else
5253 			new_flags &= ~(priv_flags->flag);
5254 
5255 		/* If this is a read-only flag, it can't be changed */
5256 		if (priv_flags->read_only &&
5257 		    ((orig_flags ^ new_flags) & ~BIT(i)))
5258 			return -EOPNOTSUPP;
5259 	}
5260 
5261 	if (pf->hw.pf_id != 0)
5262 		goto flags_complete;
5263 
5264 	for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5265 		const struct i40e_priv_flags *priv_flags;
5266 
5267 		priv_flags = &i40e_gl_gstrings_priv_flags[j];
5268 
5269 		if (flags & BIT(i + j))
5270 			new_flags |= priv_flags->flag;
5271 		else
5272 			new_flags &= ~(priv_flags->flag);
5273 
5274 		/* If this is a read-only flag, it can't be changed */
5275 		if (priv_flags->read_only &&
5276 		    ((orig_flags ^ new_flags) & ~BIT(i)))
5277 			return -EOPNOTSUPP;
5278 	}
5279 
5280 flags_complete:
5281 	changed_flags = orig_flags ^ new_flags;
5282 
5283 	if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5284 		reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5285 	if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5286 	    I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5287 		reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5288 
5289 	/* Before we finalize any flag changes, we need to perform some
5290 	 * checks to ensure that the changes are supported and safe.
5291 	 */
5292 
5293 	/* ATR eviction is not supported on all devices */
5294 	if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5295 	    !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5296 		return -EOPNOTSUPP;
5297 
5298 	/* If the driver detected FW LLDP was disabled on init, this flag could
5299 	 * be set, however we do not support _changing_ the flag:
5300 	 * - on XL710 if NPAR is enabled or FW API version < 1.7
5301 	 * - on X722 with FW API version < 1.6
5302 	 * There are situations where older FW versions/NPAR enabled PFs could
5303 	 * disable LLDP, however we _must_ not allow the user to enable/disable
5304 	 * LLDP with this flag on unsupported FW versions.
5305 	 */
5306 	if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5307 		if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5308 			dev_warn(&pf->pdev->dev,
5309 				 "Device does not support changing FW LLDP\n");
5310 			return -EOPNOTSUPP;
5311 		}
5312 	}
5313 
5314 	if (changed_flags & I40E_FLAG_RS_FEC &&
5315 	    pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5316 	    pf->hw.device_id != I40E_DEV_ID_25G_B) {
5317 		dev_warn(&pf->pdev->dev,
5318 			 "Device does not support changing FEC configuration\n");
5319 		return -EOPNOTSUPP;
5320 	}
5321 
5322 	if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5323 	    pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5324 	    pf->hw.device_id != I40E_DEV_ID_25G_B &&
5325 	    pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5326 		dev_warn(&pf->pdev->dev,
5327 			 "Device does not support changing FEC configuration\n");
5328 		return -EOPNOTSUPP;
5329 	}
5330 
5331 	/* Process any additional changes needed as a result of flag changes.
5332 	 * The changed_flags value reflects the list of bits that were
5333 	 * changed in the code above.
5334 	 */
5335 
5336 	/* Flush current ATR settings if ATR was disabled */
5337 	if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5338 	    !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5339 		set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5340 		set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5341 	}
5342 
5343 	if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5344 		u16 sw_flags = 0, valid_flags = 0;
5345 		int ret;
5346 
5347 		if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5348 			sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5349 		valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5350 		ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5351 						0, NULL);
5352 		if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5353 			dev_info(&pf->pdev->dev,
5354 				 "couldn't set switch config bits, err %s aq_err %s\n",
5355 				 i40e_stat_str(&pf->hw, ret),
5356 				 i40e_aq_str(&pf->hw,
5357 					     pf->hw.aq.asq_last_status));
5358 			/* not a fatal problem, just keep going */
5359 		}
5360 	}
5361 
5362 	if ((changed_flags & I40E_FLAG_RS_FEC) ||
5363 	    (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5364 		u8 fec_cfg = 0;
5365 
5366 		if (new_flags & I40E_FLAG_RS_FEC &&
5367 		    new_flags & I40E_FLAG_BASE_R_FEC) {
5368 			fec_cfg = I40E_AQ_SET_FEC_AUTO;
5369 		} else if (new_flags & I40E_FLAG_RS_FEC) {
5370 			fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5371 				   I40E_AQ_SET_FEC_ABILITY_RS);
5372 		} else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5373 			fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5374 				   I40E_AQ_SET_FEC_ABILITY_KR);
5375 		}
5376 		if (i40e_set_fec_cfg(dev, fec_cfg))
5377 			dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5378 	}
5379 
5380 	if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5381 	    (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5382 		dev_err(&pf->pdev->dev,
5383 			"Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5384 		return -EOPNOTSUPP;
5385 	}
5386 
5387 	if ((changed_flags & I40E_FLAG_VF_VLAN_PRUNING) &&
5388 	    pf->num_alloc_vfs) {
5389 		dev_warn(&pf->pdev->dev,
5390 			 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n");
5391 		return -EOPNOTSUPP;
5392 	}
5393 
5394 	if ((changed_flags & new_flags &
5395 	     I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5396 	    (new_flags & I40E_FLAG_MFP_ENABLED))
5397 		dev_warn(&pf->pdev->dev,
5398 			 "Turning on link-down-on-close flag may affect other partitions\n");
5399 
5400 	if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5401 		if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5402 #ifdef CONFIG_I40E_DCB
5403 			i40e_dcb_sw_default_config(pf);
5404 #endif /* CONFIG_I40E_DCB */
5405 			i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5406 			i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5407 		} else {
5408 			status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5409 			if (status) {
5410 				adq_err = pf->hw.aq.asq_last_status;
5411 				switch (adq_err) {
5412 				case I40E_AQ_RC_EEXIST:
5413 					dev_warn(&pf->pdev->dev,
5414 						 "FW LLDP agent is already running\n");
5415 					reset_needed = 0;
5416 					break;
5417 				case I40E_AQ_RC_EPERM:
5418 					dev_warn(&pf->pdev->dev,
5419 						 "Device configuration forbids SW from starting the LLDP agent.\n");
5420 					return -EINVAL;
5421 				case I40E_AQ_RC_EAGAIN:
5422 					dev_warn(&pf->pdev->dev,
5423 						 "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5424 					return -EBUSY;
5425 				default:
5426 					dev_warn(&pf->pdev->dev,
5427 						 "Starting FW LLDP agent failed: error: %s, %s\n",
5428 						 i40e_stat_str(&pf->hw,
5429 							       status),
5430 						 i40e_aq_str(&pf->hw,
5431 							     adq_err));
5432 					return -EINVAL;
5433 				}
5434 			}
5435 		}
5436 	}
5437 
5438 	/* Now that we've checked to ensure that the new flags are valid, load
5439 	 * them into place. Since we only modify flags either (a) during
5440 	 * initialization or (b) while holding the RTNL lock, we don't need
5441 	 * anything fancy here.
5442 	 */
5443 	pf->flags = new_flags;
5444 
5445 	/* Issue reset to cause things to take effect, as additional bits
5446 	 * are added we will need to create a mask of bits requiring reset
5447 	 */
5448 	if (reset_needed)
5449 		i40e_do_reset(pf, reset_needed, true);
5450 
5451 	return 0;
5452 }
5453 
5454 /**
5455  * i40e_get_module_info - get (Q)SFP+ module type info
5456  * @netdev: network interface device structure
5457  * @modinfo: module EEPROM size and layout information structure
5458  **/
5459 static int i40e_get_module_info(struct net_device *netdev,
5460 				struct ethtool_modinfo *modinfo)
5461 {
5462 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5463 	struct i40e_vsi *vsi = np->vsi;
5464 	struct i40e_pf *pf = vsi->back;
5465 	struct i40e_hw *hw = &pf->hw;
5466 	u32 sff8472_comp = 0;
5467 	u32 sff8472_swap = 0;
5468 	u32 sff8636_rev = 0;
5469 	i40e_status status;
5470 	u32 type = 0;
5471 
5472 	/* Check if firmware supports reading module EEPROM. */
5473 	if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5474 		netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5475 		return -EINVAL;
5476 	}
5477 
5478 	status = i40e_update_link_info(hw);
5479 	if (status)
5480 		return -EIO;
5481 
5482 	if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5483 		netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5484 		return -EINVAL;
5485 	}
5486 
5487 	type = hw->phy.link_info.module_type[0];
5488 
5489 	switch (type) {
5490 	case I40E_MODULE_TYPE_SFP:
5491 		status = i40e_aq_get_phy_register(hw,
5492 				I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5493 				I40E_I2C_EEPROM_DEV_ADDR, true,
5494 				I40E_MODULE_SFF_8472_COMP,
5495 				&sff8472_comp, NULL);
5496 		if (status)
5497 			return -EIO;
5498 
5499 		status = i40e_aq_get_phy_register(hw,
5500 				I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5501 				I40E_I2C_EEPROM_DEV_ADDR, true,
5502 				I40E_MODULE_SFF_8472_SWAP,
5503 				&sff8472_swap, NULL);
5504 		if (status)
5505 			return -EIO;
5506 
5507 		/* Check if the module requires address swap to access
5508 		 * the other EEPROM memory page.
5509 		 */
5510 		if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5511 			netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5512 			modinfo->type = ETH_MODULE_SFF_8079;
5513 			modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5514 		} else if (sff8472_comp == 0x00) {
5515 			/* Module is not SFF-8472 compliant */
5516 			modinfo->type = ETH_MODULE_SFF_8079;
5517 			modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5518 		} else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5519 			/* Module is SFF-8472 compliant but doesn't implement
5520 			 * Digital Diagnostic Monitoring (DDM).
5521 			 */
5522 			modinfo->type = ETH_MODULE_SFF_8079;
5523 			modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5524 		} else {
5525 			modinfo->type = ETH_MODULE_SFF_8472;
5526 			modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5527 		}
5528 		break;
5529 	case I40E_MODULE_TYPE_QSFP_PLUS:
5530 		/* Read from memory page 0. */
5531 		status = i40e_aq_get_phy_register(hw,
5532 				I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5533 				0, true,
5534 				I40E_MODULE_REVISION_ADDR,
5535 				&sff8636_rev, NULL);
5536 		if (status)
5537 			return -EIO;
5538 		/* Determine revision compliance byte */
5539 		if (sff8636_rev > 0x02) {
5540 			/* Module is SFF-8636 compliant */
5541 			modinfo->type = ETH_MODULE_SFF_8636;
5542 			modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5543 		} else {
5544 			modinfo->type = ETH_MODULE_SFF_8436;
5545 			modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5546 		}
5547 		break;
5548 	case I40E_MODULE_TYPE_QSFP28:
5549 		modinfo->type = ETH_MODULE_SFF_8636;
5550 		modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5551 		break;
5552 	default:
5553 		netdev_err(vsi->netdev, "Module type unrecognized\n");
5554 		return -EINVAL;
5555 	}
5556 	return 0;
5557 }
5558 
5559 /**
5560  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5561  * @netdev: network interface device structure
5562  * @ee: EEPROM dump request structure
5563  * @data: buffer to be filled with EEPROM contents
5564  **/
5565 static int i40e_get_module_eeprom(struct net_device *netdev,
5566 				  struct ethtool_eeprom *ee,
5567 				  u8 *data)
5568 {
5569 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5570 	struct i40e_vsi *vsi = np->vsi;
5571 	struct i40e_pf *pf = vsi->back;
5572 	struct i40e_hw *hw = &pf->hw;
5573 	bool is_sfp = false;
5574 	i40e_status status;
5575 	u32 value = 0;
5576 	int i;
5577 
5578 	if (!ee || !ee->len || !data)
5579 		return -EINVAL;
5580 
5581 	if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5582 		is_sfp = true;
5583 
5584 	for (i = 0; i < ee->len; i++) {
5585 		u32 offset = i + ee->offset;
5586 		u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5587 
5588 		/* Check if we need to access the other memory page */
5589 		if (is_sfp) {
5590 			if (offset >= ETH_MODULE_SFF_8079_LEN) {
5591 				offset -= ETH_MODULE_SFF_8079_LEN;
5592 				addr = I40E_I2C_EEPROM_DEV_ADDR2;
5593 			}
5594 		} else {
5595 			while (offset >= ETH_MODULE_SFF_8436_LEN) {
5596 				/* Compute memory page number and offset. */
5597 				offset -= ETH_MODULE_SFF_8436_LEN / 2;
5598 				addr++;
5599 			}
5600 		}
5601 
5602 		status = i40e_aq_get_phy_register(hw,
5603 				I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5604 				addr, true, offset, &value, NULL);
5605 		if (status)
5606 			return -EIO;
5607 		data[i] = value;
5608 	}
5609 	return 0;
5610 }
5611 
5612 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5613 {
5614 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5615 	struct i40e_aq_get_phy_abilities_resp phy_cfg;
5616 	enum i40e_status_code status = 0;
5617 	struct i40e_vsi *vsi = np->vsi;
5618 	struct i40e_pf *pf = vsi->back;
5619 	struct i40e_hw *hw = &pf->hw;
5620 
5621 	/* Get initial PHY capabilities */
5622 	status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5623 	if (status)
5624 		return -EAGAIN;
5625 
5626 	/* Check whether NIC configuration is compatible with Energy Efficient
5627 	 * Ethernet (EEE) mode.
5628 	 */
5629 	if (phy_cfg.eee_capability == 0)
5630 		return -EOPNOTSUPP;
5631 
5632 	edata->supported = SUPPORTED_Autoneg;
5633 	edata->lp_advertised = edata->supported;
5634 
5635 	/* Get current configuration */
5636 	status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5637 	if (status)
5638 		return -EAGAIN;
5639 
5640 	edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5641 	edata->eee_enabled = !!edata->advertised;
5642 	edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5643 
5644 	edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5645 
5646 	return 0;
5647 }
5648 
5649 static int i40e_is_eee_param_supported(struct net_device *netdev,
5650 				       struct ethtool_eee *edata)
5651 {
5652 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5653 	struct i40e_vsi *vsi = np->vsi;
5654 	struct i40e_pf *pf = vsi->back;
5655 	struct i40e_ethtool_not_used {
5656 		u32 value;
5657 		const char *name;
5658 	} param[] = {
5659 		{edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5660 		{edata->tx_lpi_timer, "tx-timer"},
5661 		{edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5662 	};
5663 	int i;
5664 
5665 	for (i = 0; i < ARRAY_SIZE(param); i++) {
5666 		if (param[i].value) {
5667 			netdev_info(netdev,
5668 				    "EEE setting %s not supported\n",
5669 				    param[i].name);
5670 			return -EOPNOTSUPP;
5671 		}
5672 	}
5673 
5674 	return 0;
5675 }
5676 
5677 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5678 {
5679 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5680 	struct i40e_aq_get_phy_abilities_resp abilities;
5681 	enum i40e_status_code status = I40E_SUCCESS;
5682 	struct i40e_aq_set_phy_config config;
5683 	struct i40e_vsi *vsi = np->vsi;
5684 	struct i40e_pf *pf = vsi->back;
5685 	struct i40e_hw *hw = &pf->hw;
5686 	__le16 eee_capability;
5687 
5688 	/* Deny parameters we don't support */
5689 	if (i40e_is_eee_param_supported(netdev, edata))
5690 		return -EOPNOTSUPP;
5691 
5692 	/* Get initial PHY capabilities */
5693 	status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5694 					      NULL);
5695 	if (status)
5696 		return -EAGAIN;
5697 
5698 	/* Check whether NIC configuration is compatible with Energy Efficient
5699 	 * Ethernet (EEE) mode.
5700 	 */
5701 	if (abilities.eee_capability == 0)
5702 		return -EOPNOTSUPP;
5703 
5704 	/* Cache initial EEE capability */
5705 	eee_capability = abilities.eee_capability;
5706 
5707 	/* Get current PHY configuration */
5708 	status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5709 					      NULL);
5710 	if (status)
5711 		return -EAGAIN;
5712 
5713 	/* Cache current PHY configuration */
5714 	config.phy_type = abilities.phy_type;
5715 	config.phy_type_ext = abilities.phy_type_ext;
5716 	config.link_speed = abilities.link_speed;
5717 	config.abilities = abilities.abilities |
5718 			   I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5719 	config.eeer = abilities.eeer_val;
5720 	config.low_power_ctrl = abilities.d3_lpan;
5721 	config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5722 			    I40E_AQ_PHY_FEC_CONFIG_MASK;
5723 
5724 	/* Set desired EEE state */
5725 	if (edata->eee_enabled) {
5726 		config.eee_capability = eee_capability;
5727 		config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5728 	} else {
5729 		config.eee_capability = 0;
5730 		config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5731 	}
5732 
5733 	/* Apply modified PHY configuration */
5734 	status = i40e_aq_set_phy_config(hw, &config, NULL);
5735 	if (status)
5736 		return -EAGAIN;
5737 
5738 	return 0;
5739 }
5740 
5741 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5742 	.get_drvinfo		= i40e_get_drvinfo,
5743 	.set_eeprom		= i40e_set_eeprom,
5744 	.get_eeprom_len		= i40e_get_eeprom_len,
5745 	.get_eeprom		= i40e_get_eeprom,
5746 };
5747 
5748 static const struct ethtool_ops i40e_ethtool_ops = {
5749 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5750 				     ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5751 				     ETHTOOL_COALESCE_USE_ADAPTIVE |
5752 				     ETHTOOL_COALESCE_RX_USECS_HIGH |
5753 				     ETHTOOL_COALESCE_TX_USECS_HIGH,
5754 	.get_drvinfo		= i40e_get_drvinfo,
5755 	.get_regs_len		= i40e_get_regs_len,
5756 	.get_regs		= i40e_get_regs,
5757 	.nway_reset		= i40e_nway_reset,
5758 	.get_link		= ethtool_op_get_link,
5759 	.get_wol		= i40e_get_wol,
5760 	.set_wol		= i40e_set_wol,
5761 	.set_eeprom		= i40e_set_eeprom,
5762 	.get_eeprom_len		= i40e_get_eeprom_len,
5763 	.get_eeprom		= i40e_get_eeprom,
5764 	.get_ringparam		= i40e_get_ringparam,
5765 	.set_ringparam		= i40e_set_ringparam,
5766 	.get_pauseparam		= i40e_get_pauseparam,
5767 	.set_pauseparam		= i40e_set_pauseparam,
5768 	.get_msglevel		= i40e_get_msglevel,
5769 	.set_msglevel		= i40e_set_msglevel,
5770 	.get_rxnfc		= i40e_get_rxnfc,
5771 	.set_rxnfc		= i40e_set_rxnfc,
5772 	.self_test		= i40e_diag_test,
5773 	.get_strings		= i40e_get_strings,
5774 	.get_eee		= i40e_get_eee,
5775 	.set_eee		= i40e_set_eee,
5776 	.set_phys_id		= i40e_set_phys_id,
5777 	.get_sset_count		= i40e_get_sset_count,
5778 	.get_ethtool_stats	= i40e_get_ethtool_stats,
5779 	.get_coalesce		= i40e_get_coalesce,
5780 	.set_coalesce		= i40e_set_coalesce,
5781 	.get_rxfh_key_size	= i40e_get_rxfh_key_size,
5782 	.get_rxfh_indir_size	= i40e_get_rxfh_indir_size,
5783 	.get_rxfh		= i40e_get_rxfh,
5784 	.set_rxfh		= i40e_set_rxfh,
5785 	.get_channels		= i40e_get_channels,
5786 	.set_channels		= i40e_set_channels,
5787 	.get_module_info	= i40e_get_module_info,
5788 	.get_module_eeprom	= i40e_get_module_eeprom,
5789 	.get_ts_info		= i40e_get_ts_info,
5790 	.get_priv_flags		= i40e_get_priv_flags,
5791 	.set_priv_flags		= i40e_set_priv_flags,
5792 	.get_per_queue_coalesce	= i40e_get_per_queue_coalesce,
5793 	.set_per_queue_coalesce	= i40e_set_per_queue_coalesce,
5794 	.get_link_ksettings	= i40e_get_link_ksettings,
5795 	.set_link_ksettings	= i40e_set_link_ksettings,
5796 	.get_fecparam = i40e_get_fec_param,
5797 	.set_fecparam = i40e_set_fec_param,
5798 	.flash_device = i40e_ddp_flash,
5799 };
5800 
5801 void i40e_set_ethtool_ops(struct net_device *netdev)
5802 {
5803 	struct i40e_netdev_priv *np = netdev_priv(netdev);
5804 	struct i40e_pf		*pf = np->vsi->back;
5805 
5806 	if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5807 		netdev->ethtool_ops = &i40e_ethtool_ops;
5808 	else
5809 		netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5810 }
5811